diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
41 files changed, 4024 insertions, 3305 deletions
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index 19150398a248..48ab9142af38 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -5,16 +5,16 @@ iwlagn-objs += iwl-agn-ucode.o iwl-agn-tx.o iwlagn-objs += iwl-agn-lib.o iwl-agn-calib.o iwl-io.o iwlagn-objs += iwl-agn-tt.o iwl-agn-sta.o iwl-agn-eeprom.o -iwlagn-objs += iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o -iwlagn-objs += iwl-rx.o iwl-tx.o iwl-sta.o +iwlagn-objs += iwl-core.o iwl-eeprom.o iwl-power.o +iwlagn-objs += iwl-rx.o iwl-sta.o iwlagn-objs += iwl-scan.o iwl-led.o -iwlagn-objs += iwl-agn-rxon.o iwl-agn-hcmd.o iwl-agn-ict.o +iwlagn-objs += iwl-agn-rxon.o iwlagn-objs += iwl-5000.o iwlagn-objs += iwl-6000.o iwlagn-objs += iwl-1000.o iwlagn-objs += iwl-2000.o iwlagn-objs += iwl-pci.o -iwlagn-objs += iwl-trans.o +iwlagn-objs += iwl-trans.o iwl-trans-rx-pcie.o iwl-trans-tx-pcie.o iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index 2f56b343e869..01b49eb8c8ec 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -168,9 +168,6 @@ static int iwl1000_hw_set_hw_params(struct iwl_priv *priv) static struct iwl_lib_ops iwl1000_lib = { .set_hw_params = iwl1000_hw_set_hw_params, - .rx_handler_setup = iwlagn_rx_handler_setup, - .setup_deferred_work = iwlagn_setup_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .nic_config = iwl1000_nic_config, .eeprom_ops = { .regulatory_bands = { @@ -186,10 +183,6 @@ static struct iwl_lib_ops iwl1000_lib = { .temperature = iwlagn_temperature, }; -static const struct iwl_ops iwl1000_ops = { - .lib = &iwl1000_lib, -}; - static struct iwl_base_params iwl1000_base_params = { .num_of_queues = IWLAGN_NUM_QUEUES, .num_of_ampdu_queues = IWLAGN_NUM_AMPDU_QUEUES, @@ -217,7 +210,7 @@ static struct iwl_ht_params iwl1000_ht_params = { .ucode_api_min = IWL1000_UCODE_API_MIN, \ .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \ - .ops = &iwl1000_ops, \ + .lib = &iwl1000_lib, \ .base_params = &iwl1000_base_params, \ .led_mode = IWL_LED_BLINK @@ -238,7 +231,7 @@ struct iwl_cfg iwl1000_bg_cfg = { .ucode_api_min = IWL100_UCODE_API_MIN, \ .eeprom_ver = EEPROM_1000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION, \ - .ops = &iwl1000_ops, \ + .lib = &iwl1000_lib, \ .base_params = &iwl1000_base_params, \ .led_mode = IWL_LED_RF_STATE, \ .rx_with_siso_diversity = true diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c index 32ac8654b79a..0e13f0bb2e17 100644 --- a/drivers/net/wireless/iwlwifi/iwl-2000.c +++ b/drivers/net/wireless/iwlwifi/iwl-2000.c @@ -85,9 +85,6 @@ static void iwl2000_nic_config(struct iwl_priv *priv) if (priv->cfg->iq_invert) iwl_set_bit(priv, CSR_GP_DRIVER_REG, CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER); - - if (priv->cfg->disable_otp_refresh) - iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010); } static struct iwl_sensitivity_ranges iwl2000_sensitivity = { @@ -156,7 +153,7 @@ static int iwl2000_hw_set_hw_params(struct iwl_priv *priv) BIT(IWL_CALIB_TX_IQ) | BIT(IWL_CALIB_BASE_BAND); if (priv->cfg->need_dc_calib) - priv->hw_params.calib_rt_cfg |= BIT(IWL_CALIB_CFG_DC_IDX); + priv->hw_params.calib_rt_cfg |= IWL_CALIB_CFG_DC_IDX; if (priv->cfg->need_temp_offset_calib) priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET); @@ -167,9 +164,6 @@ static int iwl2000_hw_set_hw_params(struct iwl_priv *priv) static struct iwl_lib_ops iwl2000_lib = { .set_hw_params = iwl2000_hw_set_hw_params, - .rx_handler_setup = iwlagn_rx_handler_setup, - .setup_deferred_work = iwlagn_setup_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .nic_config = iwl2000_nic_config, .eeprom_ops = { .regulatory_bands = { @@ -188,10 +182,9 @@ static struct iwl_lib_ops iwl2000_lib = { static struct iwl_lib_ops iwl2030_lib = { .set_hw_params = iwl2000_hw_set_hw_params, - .rx_handler_setup = iwlagn_bt_rx_handler_setup, - .setup_deferred_work = iwlagn_bt_setup_deferred_work, + .bt_rx_handler_setup = iwlagn_bt_rx_handler_setup, + .bt_setup_deferred_work = iwlagn_bt_setup_deferred_work, .cancel_deferred_work = iwlagn_bt_cancel_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .nic_config = iwl2000_nic_config, .eeprom_ops = { .regulatory_bands = { @@ -208,22 +201,6 @@ static struct iwl_lib_ops iwl2030_lib = { .temperature = iwlagn_temperature, }; -static const struct iwl_ops iwl2000_ops = { - .lib = &iwl2000_lib, -}; - -static const struct iwl_ops iwl2030_ops = { - .lib = &iwl2030_lib, -}; - -static const struct iwl_ops iwl105_ops = { - .lib = &iwl2000_lib, -}; - -static const struct iwl_ops iwl135_ops = { - .lib = &iwl2030_lib, -}; - static struct iwl_base_params iwl2000_base_params = { .eeprom_size = OTP_LOW_IMAGE_SIZE, .num_of_queues = IWLAGN_NUM_QUEUES, @@ -282,13 +259,12 @@ static struct iwl_bt_params iwl2030_bt_params = { .ucode_api_min = IWL2000_UCODE_API_MIN, \ .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ - .ops = &iwl2000_ops, \ + .lib = &iwl2000_lib, \ .base_params = &iwl2000_base_params, \ .need_dc_calib = true, \ .need_temp_offset_calib = true, \ .led_mode = IWL_LED_RF_STATE, \ - .iq_invert = true, \ - .disable_otp_refresh = true \ + .iq_invert = true \ struct iwl_cfg iwl2000_2bgn_cfg = { .name = "2000 Series 2x2 BGN", @@ -307,7 +283,7 @@ struct iwl_cfg iwl2000_2bg_cfg = { .ucode_api_min = IWL2030_UCODE_API_MIN, \ .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ - .ops = &iwl2030_ops, \ + .lib = &iwl2030_lib, \ .base_params = &iwl2030_base_params, \ .bt_params = &iwl2030_bt_params, \ .need_dc_calib = true, \ @@ -333,13 +309,14 @@ struct iwl_cfg iwl2030_2bg_cfg = { .ucode_api_min = IWL105_UCODE_API_MIN, \ .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ - .ops = &iwl105_ops, \ + .lib = &iwl2000_lib, \ .base_params = &iwl2000_base_params, \ .need_dc_calib = true, \ .need_temp_offset_calib = true, \ .led_mode = IWL_LED_RF_STATE, \ .adv_pm = true, \ - .rx_with_siso_diversity = true \ + .rx_with_siso_diversity = true, \ + .iq_invert = true \ struct iwl_cfg iwl105_bg_cfg = { .name = "105 Series 1x1 BG", @@ -358,14 +335,15 @@ struct iwl_cfg iwl105_bgn_cfg = { .ucode_api_min = IWL135_UCODE_API_MIN, \ .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ - .ops = &iwl135_ops, \ + .lib = &iwl2030_lib, \ .base_params = &iwl2030_base_params, \ .bt_params = &iwl2030_bt_params, \ .need_dc_calib = true, \ .need_temp_offset_calib = true, \ .led_mode = IWL_LED_RF_STATE, \ .adv_pm = true, \ - .rx_with_siso_diversity = true \ + .rx_with_siso_diversity = true, \ + .iq_invert = true \ struct iwl_cfg iwl135_bg_cfg = { .name = "135 Series 1x1 BG/BT", diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 556489302da3..3eeb12ebe6e9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -315,14 +315,11 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv, return -EFAULT; } - return trans_send_cmd(priv, &hcmd); + return trans_send_cmd(&priv->trans, &hcmd); } static struct iwl_lib_ops iwl5000_lib = { .set_hw_params = iwl5000_hw_set_hw_params, - .rx_handler_setup = iwlagn_rx_handler_setup, - .setup_deferred_work = iwlagn_setup_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .set_channel_switch = iwl5000_hw_channel_switch, .nic_config = iwl5000_nic_config, .eeprom_ops = { @@ -341,9 +338,6 @@ static struct iwl_lib_ops iwl5000_lib = { static struct iwl_lib_ops iwl5150_lib = { .set_hw_params = iwl5150_hw_set_hw_params, - .rx_handler_setup = iwlagn_rx_handler_setup, - .setup_deferred_work = iwlagn_setup_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .set_channel_switch = iwl5000_hw_channel_switch, .nic_config = iwl5000_nic_config, .eeprom_ops = { @@ -360,14 +354,6 @@ static struct iwl_lib_ops iwl5150_lib = { .temperature = iwl5150_temperature, }; -static const struct iwl_ops iwl5000_ops = { - .lib = &iwl5000_lib, -}; - -static const struct iwl_ops iwl5150_ops = { - .lib = &iwl5150_lib, -}; - static struct iwl_base_params iwl5000_base_params = { .eeprom_size = IWLAGN_EEPROM_IMG_SIZE, .num_of_queues = IWLAGN_NUM_QUEUES, @@ -390,7 +376,7 @@ static struct iwl_ht_params iwl5000_ht_params = { .ucode_api_min = IWL5000_UCODE_API_MIN, \ .eeprom_ver = EEPROM_5000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, \ - .ops = &iwl5000_ops, \ + .lib = &iwl5000_lib, \ .base_params = &iwl5000_base_params, \ .led_mode = IWL_LED_BLINK @@ -433,7 +419,7 @@ struct iwl_cfg iwl5350_agn_cfg = { .ucode_api_min = IWL5000_UCODE_API_MIN, .eeprom_ver = EEPROM_5050_EEPROM_VERSION, .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, - .ops = &iwl5000_ops, + .lib = &iwl5000_lib, .base_params = &iwl5000_base_params, .ht_params = &iwl5000_ht_params, .led_mode = IWL_LED_BLINK, @@ -446,7 +432,7 @@ struct iwl_cfg iwl5350_agn_cfg = { .ucode_api_min = IWL5150_UCODE_API_MIN, \ .eeprom_ver = EEPROM_5050_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION, \ - .ops = &iwl5150_ops, \ + .lib = &iwl5150_lib, \ .base_params = &iwl5000_base_params, \ .need_dc_calib = true, \ .led_mode = IWL_LED_BLINK, \ diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index 80f1ef61a3d5..973d1972e8cc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -106,10 +106,8 @@ static void iwl6000_nic_config(struct iwl_priv *priv) CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA); } /* do additional nic configuration if needed */ - if (priv->cfg->ops->nic && - priv->cfg->ops->nic->additional_nic_config) { - priv->cfg->ops->nic->additional_nic_config(priv); - } + if (priv->cfg->additional_nic_config) + priv->cfg->additional_nic_config(priv); } static struct iwl_sensitivity_ranges iwl6000_sensitivity = { @@ -178,7 +176,7 @@ static int iwl6000_hw_set_hw_params(struct iwl_priv *priv) BIT(IWL_CALIB_TX_IQ) | BIT(IWL_CALIB_BASE_BAND); if (priv->cfg->need_dc_calib) - priv->hw_params.calib_rt_cfg |= BIT(IWL_CALIB_CFG_DC_IDX); + priv->hw_params.calib_rt_cfg |= IWL_CALIB_CFG_DC_IDX; if (priv->cfg->need_temp_offset_calib) priv->hw_params.calib_init_cfg |= BIT(IWL_CALIB_TEMP_OFFSET); @@ -255,14 +253,11 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv, return -EFAULT; } - return trans_send_cmd(priv, &hcmd); + return trans_send_cmd(&priv->trans, &hcmd); } static struct iwl_lib_ops iwl6000_lib = { .set_hw_params = iwl6000_hw_set_hw_params, - .rx_handler_setup = iwlagn_rx_handler_setup, - .setup_deferred_work = iwlagn_setup_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .set_channel_switch = iwl6000_hw_channel_switch, .nic_config = iwl6000_nic_config, .eeprom_ops = { @@ -282,10 +277,9 @@ static struct iwl_lib_ops iwl6000_lib = { static struct iwl_lib_ops iwl6030_lib = { .set_hw_params = iwl6000_hw_set_hw_params, - .rx_handler_setup = iwlagn_bt_rx_handler_setup, - .setup_deferred_work = iwlagn_bt_setup_deferred_work, + .bt_rx_handler_setup = iwlagn_bt_rx_handler_setup, + .bt_setup_deferred_work = iwlagn_bt_setup_deferred_work, .cancel_deferred_work = iwlagn_bt_cancel_deferred_work, - .is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr, .set_channel_switch = iwl6000_hw_channel_switch, .nic_config = iwl6000_nic_config, .eeprom_ops = { @@ -303,32 +297,6 @@ static struct iwl_lib_ops iwl6030_lib = { .temperature = iwlagn_temperature, }; -static struct iwl_nic_ops iwl6050_nic_ops = { - .additional_nic_config = &iwl6050_additional_nic_config, -}; - -static struct iwl_nic_ops iwl6150_nic_ops = { - .additional_nic_config = &iwl6150_additional_nic_config, -}; - -static const struct iwl_ops iwl6000_ops = { - .lib = &iwl6000_lib, -}; - -static const struct iwl_ops iwl6050_ops = { - .lib = &iwl6000_lib, - .nic = &iwl6050_nic_ops, -}; - -static const struct iwl_ops iwl6150_ops = { - .lib = &iwl6000_lib, - .nic = &iwl6150_nic_ops, -}; - -static const struct iwl_ops iwl6030_ops = { - .lib = &iwl6030_lib, -}; - static struct iwl_base_params iwl6000_base_params = { .eeprom_size = OTP_LOW_IMAGE_SIZE, .num_of_queues = IWLAGN_NUM_QUEUES, @@ -402,7 +370,7 @@ static struct iwl_bt_params iwl6000_bt_params = { .ucode_api_min = IWL6000G2_UCODE_API_MIN, \ .eeprom_ver = EEPROM_6005_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_6005_TX_POWER_VERSION, \ - .ops = &iwl6000_ops, \ + .lib = &iwl6000_lib, \ .base_params = &iwl6000_g2_base_params, \ .need_dc_calib = true, \ .need_temp_offset_calib = true, \ @@ -430,7 +398,7 @@ struct iwl_cfg iwl6005_2bg_cfg = { .ucode_api_min = IWL6000G2_UCODE_API_MIN, \ .eeprom_ver = EEPROM_6030_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_6030_TX_POWER_VERSION, \ - .ops = &iwl6030_ops, \ + .lib = &iwl6030_lib, \ .base_params = &iwl6000_g2_base_params, \ .bt_params = &iwl6000_bt_params, \ .need_dc_calib = true, \ @@ -511,7 +479,7 @@ struct iwl_cfg iwl130_bg_cfg = { .valid_rx_ant = ANT_BC, /* .cfg overwrite */ \ .eeprom_ver = EEPROM_6000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_6000_TX_POWER_VERSION, \ - .ops = &iwl6000_ops, \ + .lib = &iwl6000_lib, \ .base_params = &iwl6000_base_params, \ .pa_type = IWL_PA_INTERNAL, \ .led_mode = IWL_LED_BLINK @@ -538,7 +506,8 @@ struct iwl_cfg iwl6000i_2bg_cfg = { .ucode_api_min = IWL6050_UCODE_API_MIN, \ .valid_tx_ant = ANT_AB, /* .cfg overwrite */ \ .valid_rx_ant = ANT_AB, /* .cfg overwrite */ \ - .ops = &iwl6050_ops, \ + .lib = &iwl6000_lib, \ + .additional_nic_config = iwl6050_additional_nic_config, \ .eeprom_ver = EEPROM_6050_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_6050_TX_POWER_VERSION, \ .base_params = &iwl6050_base_params, \ @@ -561,7 +530,8 @@ struct iwl_cfg iwl6050_2abg_cfg = { .fw_name_pre = IWL6050_FW_PRE, \ .ucode_api_max = IWL6050_UCODE_API_MAX, \ .ucode_api_min = IWL6050_UCODE_API_MIN, \ - .ops = &iwl6150_ops, \ + .lib = &iwl6000_lib, \ + .additional_nic_config = iwl6150_additional_nic_config, \ .eeprom_ver = EEPROM_6150_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_6150_TX_POWER_VERSION, \ .base_params = &iwl6050_base_params, \ @@ -587,7 +557,7 @@ struct iwl_cfg iwl6000_3agn_cfg = { .ucode_api_min = IWL6000_UCODE_API_MIN, .eeprom_ver = EEPROM_6000_EEPROM_VERSION, .eeprom_calib_ver = EEPROM_6000_TX_POWER_VERSION, - .ops = &iwl6000_ops, + .lib = &iwl6000_lib, .base_params = &iwl6000_base_params, .ht_params = &iwl6000_ht_params, .need_dc_calib = true, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c index 02c7c65ee86a..72d6297602b8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c @@ -98,7 +98,7 @@ int iwl_send_calib_results(struct iwl_priv *priv) hcmd.len[0] = priv->calib_results[i].buf_len; hcmd.data[0] = priv->calib_results[i].buf; hcmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; - ret = trans_send_cmd(priv, &hcmd); + ret = trans_send_cmd(&priv->trans, &hcmd); if (ret) { IWL_ERR(priv, "Error %d iteration %d\n", ret, i); @@ -484,7 +484,7 @@ static int iwl_sensitivity_write(struct iwl_priv *priv) memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]), sizeof(u16)*HD_TABLE_SIZE); - return trans_send_cmd(priv, &cmd_out); + return trans_send_cmd(&priv->trans, &cmd_out); } /* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */ @@ -548,7 +548,7 @@ static int iwl_enhance_sensitivity_write(struct iwl_priv *priv) &(cmd.enhance_table[HD_INA_NON_SQUARE_DET_OFDM_INDEX]), sizeof(u16)*ENHANCE_HD_TABLE_ENTRIES); - return trans_send_cmd(priv, &cmd_out); + return trans_send_cmd(&priv->trans, &cmd_out); } void iwl_init_sensitivity(struct iwl_priv *priv) @@ -840,6 +840,65 @@ static void iwl_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, active_chains); } +static void iwlagn_gain_computation(struct iwl_priv *priv, + u32 average_noise[NUM_RX_CHAINS], + u16 min_average_noise_antenna_i, + u32 min_average_noise, + u8 default_chain) +{ + int i; + s32 delta_g; + struct iwl_chain_noise_data *data = &priv->chain_noise_data; + + /* + * Find Gain Code for the chains based on "default chain" + */ + for (i = default_chain + 1; i < NUM_RX_CHAINS; i++) { + if ((data->disconn_array[i])) { + data->delta_gain_code[i] = 0; + continue; + } + + delta_g = (priv->cfg->base_params->chain_noise_scale * + ((s32)average_noise[default_chain] - + (s32)average_noise[i])) / 1500; + + /* bound gain by 2 bits value max, 3rd bit is sign */ + data->delta_gain_code[i] = + min(abs(delta_g), + (long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); + + if (delta_g < 0) + /* + * set negative sign ... + * note to Intel developers: This is uCode API format, + * not the format of any internal device registers. + * Do not change this format for e.g. 6050 or similar + * devices. Change format only if more resolution + * (i.e. more than 2 bits magnitude) is needed. + */ + data->delta_gain_code[i] |= (1 << 2); + } + + IWL_DEBUG_CALIB(priv, "Delta gains: ANT_B = %d ANT_C = %d\n", + data->delta_gain_code[1], data->delta_gain_code[2]); + + if (!data->radio_write) { + struct iwl_calib_chain_noise_gain_cmd cmd; + + memset(&cmd, 0, sizeof(cmd)); + + iwl_set_calib_hdr(&cmd.hdr, + priv->phy_calib_chain_noise_gain_cmd); + cmd.delta_gain_1 = data->delta_gain_code[1]; + cmd.delta_gain_2 = data->delta_gain_code[2]; + trans_send_cmd_pdu(&priv->trans, REPLY_PHY_CALIBRATION_CMD, + CMD_ASYNC, sizeof(cmd), &cmd); + + data->radio_write = 1; + data->state = IWL_CHAIN_NOISE_CALIBRATED; + } +} /* * Accumulate 16 beacons of signal and noise statistics for each of diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c deleted file mode 100644 index f0f5f5eada75..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c +++ /dev/null @@ -1,210 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/sched.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-agn.h" -#include "iwl-trans.h" - -int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) -{ - struct iwl_tx_ant_config_cmd tx_ant_cmd = { - .valid = cpu_to_le32(valid_tx_ant), - }; - - if (IWL_UCODE_API(priv->ucode_ver) > 1) { - IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); - return trans_send_cmd_pdu(priv, - TX_ANT_CONFIGURATION_CMD, - CMD_SYNC, - sizeof(struct iwl_tx_ant_config_cmd), - &tx_ant_cmd); - } else { - IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); - return -EOPNOTSUPP; - } -} - -void iwlagn_gain_computation(struct iwl_priv *priv, - u32 average_noise[NUM_RX_CHAINS], - u16 min_average_noise_antenna_i, - u32 min_average_noise, - u8 default_chain) -{ - int i; - s32 delta_g; - struct iwl_chain_noise_data *data = &priv->chain_noise_data; - - /* - * Find Gain Code for the chains based on "default chain" - */ - for (i = default_chain + 1; i < NUM_RX_CHAINS; i++) { - if ((data->disconn_array[i])) { - data->delta_gain_code[i] = 0; - continue; - } - - delta_g = (priv->cfg->base_params->chain_noise_scale * - ((s32)average_noise[default_chain] - - (s32)average_noise[i])) / 1500; - - /* bound gain by 2 bits value max, 3rd bit is sign */ - data->delta_gain_code[i] = - min(abs(delta_g), (long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); - - if (delta_g < 0) - /* - * set negative sign ... - * note to Intel developers: This is uCode API format, - * not the format of any internal device registers. - * Do not change this format for e.g. 6050 or similar - * devices. Change format only if more resolution - * (i.e. more than 2 bits magnitude) is needed. - */ - data->delta_gain_code[i] |= (1 << 2); - } - - IWL_DEBUG_CALIB(priv, "Delta gains: ANT_B = %d ANT_C = %d\n", - data->delta_gain_code[1], data->delta_gain_code[2]); - - if (!data->radio_write) { - struct iwl_calib_chain_noise_gain_cmd cmd; - - memset(&cmd, 0, sizeof(cmd)); - - iwl_set_calib_hdr(&cmd.hdr, - priv->_agn.phy_calib_chain_noise_gain_cmd); - cmd.delta_gain_1 = data->delta_gain_code[1]; - cmd.delta_gain_2 = data->delta_gain_code[2]; - trans_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, - CMD_ASYNC, sizeof(cmd), &cmd); - - data->radio_write = 1; - data->state = IWL_CHAIN_NOISE_CALIBRATED; - } -} - -int iwlagn_set_pan_params(struct iwl_priv *priv) -{ - struct iwl_wipan_params_cmd cmd; - struct iwl_rxon_context *ctx_bss, *ctx_pan; - int slot0 = 300, slot1 = 0; - int ret; - - if (priv->valid_contexts == BIT(IWL_RXON_CTX_BSS)) - return 0; - - BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); - - lockdep_assert_held(&priv->mutex); - - ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS]; - ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN]; - - /* - * If the PAN context is inactive, then we don't need - * to update the PAN parameters, the last thing we'll - * have done before it goes inactive is making the PAN - * parameters be WLAN-only. - */ - if (!ctx_pan->is_active) - return 0; - - memset(&cmd, 0, sizeof(cmd)); - - /* only 2 slots are currently allowed */ - cmd.num_slots = 2; - - cmd.slots[0].type = 0; /* BSS */ - cmd.slots[1].type = 1; /* PAN */ - - if (priv->_agn.hw_roc_channel) { - /* both contexts must be used for this to happen */ - slot1 = priv->_agn.hw_roc_duration; - slot0 = IWL_MIN_SLOT_TIME; - } else if (ctx_bss->vif && ctx_pan->vif) { - int bcnint = ctx_pan->vif->bss_conf.beacon_int; - int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1; - - /* should be set, but seems unused?? */ - cmd.flags |= cpu_to_le16(IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE); - - if (ctx_pan->vif->type == NL80211_IFTYPE_AP && - bcnint && - bcnint != ctx_bss->vif->bss_conf.beacon_int) { - IWL_ERR(priv, - "beacon intervals don't match (%d, %d)\n", - ctx_bss->vif->bss_conf.beacon_int, - ctx_pan->vif->bss_conf.beacon_int); - } else - bcnint = max_t(int, bcnint, - ctx_bss->vif->bss_conf.beacon_int); - if (!bcnint) - bcnint = DEFAULT_BEACON_INTERVAL; - slot0 = bcnint / 2; - slot1 = bcnint - slot0; - - if (test_bit(STATUS_SCAN_HW, &priv->status) || - (!ctx_bss->vif->bss_conf.idle && - !ctx_bss->vif->bss_conf.assoc)) { - slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME; - slot1 = IWL_MIN_SLOT_TIME; - } else if (!ctx_pan->vif->bss_conf.idle && - !ctx_pan->vif->bss_conf.assoc) { - slot1 = bcnint * 3 - IWL_MIN_SLOT_TIME; - slot0 = IWL_MIN_SLOT_TIME; - } - } else if (ctx_pan->vif) { - slot0 = 0; - slot1 = max_t(int, 1, ctx_pan->vif->bss_conf.dtim_period) * - ctx_pan->vif->bss_conf.beacon_int; - slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1); - - if (test_bit(STATUS_SCAN_HW, &priv->status)) { - slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME; - slot1 = IWL_MIN_SLOT_TIME; - } - } - - cmd.slots[0].width = cpu_to_le16(slot0); - cmd.slots[1].width = cpu_to_le16(slot1); - - ret = trans_send_cmd_pdu(priv, REPLY_WIPAN_PARAMS, CMD_SYNC, - sizeof(cmd), &cmd); - if (ret) - IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret); - - return ret; -} diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c deleted file mode 100644 index f1b40ec1c873..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c +++ /dev/null @@ -1,306 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/etherdevice.h> -#include <linux/sched.h> -#include <linux/gfp.h> -#include <net/mac80211.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-agn.h" -#include "iwl-helpers.h" - -#define ICT_COUNT (PAGE_SIZE/sizeof(u32)) - -/* Free dram table */ -void iwl_free_isr_ict(struct iwl_priv *priv) -{ - if (priv->_agn.ict_tbl_vir) { - dma_free_coherent(priv->bus.dev, - (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, - priv->_agn.ict_tbl_vir, - priv->_agn.ict_tbl_dma); - priv->_agn.ict_tbl_vir = NULL; - } -} - - -/* allocate dram shared table it is a PAGE_SIZE aligned - * also reset all data related to ICT table interrupt. - */ -int iwl_alloc_isr_ict(struct iwl_priv *priv) -{ - - /* allocate shrared data table */ - priv->_agn.ict_tbl_vir = - dma_alloc_coherent(priv->bus.dev, - (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, - &priv->_agn.ict_tbl_dma, GFP_KERNEL); - if (!priv->_agn.ict_tbl_vir) - return -ENOMEM; - - /* align table to PAGE_SIZE boundary */ - priv->_agn.aligned_ict_tbl_dma = ALIGN(priv->_agn.ict_tbl_dma, PAGE_SIZE); - - IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n", - (unsigned long long)priv->_agn.ict_tbl_dma, - (unsigned long long)priv->_agn.aligned_ict_tbl_dma, - (int)(priv->_agn.aligned_ict_tbl_dma - priv->_agn.ict_tbl_dma)); - - priv->_agn.ict_tbl = priv->_agn.ict_tbl_vir + - (priv->_agn.aligned_ict_tbl_dma - priv->_agn.ict_tbl_dma); - - IWL_DEBUG_ISR(priv, "ict vir addr %p vir aligned %p diff %d\n", - priv->_agn.ict_tbl, priv->_agn.ict_tbl_vir, - (int)(priv->_agn.aligned_ict_tbl_dma - priv->_agn.ict_tbl_dma)); - - /* reset table and index to all 0 */ - memset(priv->_agn.ict_tbl_vir,0, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE); - priv->_agn.ict_index = 0; - - /* add periodic RX interrupt */ - priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC; - return 0; -} - -/* Device is going up inform it about using ICT interrupt table, - * also we need to tell the driver to start using ICT interrupt. - */ -int iwl_reset_ict(struct iwl_priv *priv) -{ - u32 val; - unsigned long flags; - - if (!priv->_agn.ict_tbl_vir) - return 0; - - spin_lock_irqsave(&priv->lock, flags); - iwl_disable_interrupts(priv); - - memset(&priv->_agn.ict_tbl[0], 0, sizeof(u32) * ICT_COUNT); - - val = priv->_agn.aligned_ict_tbl_dma >> PAGE_SHIFT; - - val |= CSR_DRAM_INT_TBL_ENABLE; - val |= CSR_DRAM_INIT_TBL_WRAP_CHECK; - - IWL_DEBUG_ISR(priv, "CSR_DRAM_INT_TBL_REG =0x%X " - "aligned dma address %Lx\n", - val, (unsigned long long)priv->_agn.aligned_ict_tbl_dma); - - iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val); - priv->_agn.use_ict = true; - priv->_agn.ict_index = 0; - iwl_write32(priv, CSR_INT, priv->inta_mask); - iwl_enable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - return 0; -} - -/* Device is going down disable ict interrupt usage */ -void iwl_disable_ict(struct iwl_priv *priv) -{ - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - priv->_agn.use_ict = false; - spin_unlock_irqrestore(&priv->lock, flags); -} - -static irqreturn_t iwl_isr(int irq, void *data) -{ - struct iwl_priv *priv = data; - u32 inta, inta_mask; - unsigned long flags; -#ifdef CONFIG_IWLWIFI_DEBUG - u32 inta_fh; -#endif - if (!priv) - return IRQ_NONE; - - spin_lock_irqsave(&priv->lock, flags); - - /* Disable (but don't clear!) interrupts here to avoid - * back-to-back ISRs and sporadic interrupts from our NIC. - * If we have something to service, the tasklet will re-enable ints. - * If we *don't* have something, we'll re-enable before leaving here. */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ - iwl_write32(priv, CSR_INT_MASK, 0x00000000); - - /* Discover which interrupts are active/pending */ - inta = iwl_read32(priv, CSR_INT); - - /* Ignore interrupt if there's nothing in NIC to service. - * This may be due to IRQ shared with another device, - * or due to sporadic interrupts thrown from our NIC. */ - if (!inta) { - IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); - goto none; - } - - if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { - /* Hardware disappeared. It might have already raised - * an interrupt */ - IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); - goto unplugged; - } - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, " - "fh 0x%08x\n", inta, inta_mask, inta_fh); - } -#endif - - priv->_agn.inta |= inta; - /* iwl_irq_tasklet() will service interrupts and re-enable them */ - if (likely(inta)) - tasklet_schedule(&priv->irq_tasklet); - else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->_agn.inta) - iwl_enable_interrupts(priv); - - unplugged: - spin_unlock_irqrestore(&priv->lock, flags); - return IRQ_HANDLED; - - none: - /* re-enable interrupts here since we don't have anything to service. */ - /* only Re-enable if disabled by irq and no schedules tasklet. */ - if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->_agn.inta) - iwl_enable_interrupts(priv); - - spin_unlock_irqrestore(&priv->lock, flags); - return IRQ_NONE; -} - -/* interrupt handler using ict table, with this interrupt driver will - * stop using INTA register to get device's interrupt, reading this register - * is expensive, device will write interrupts in ICT dram table, increment - * index then will fire interrupt to driver, driver will OR all ICT table - * entries from current index up to table entry with 0 value. the result is - * the interrupt we need to service, driver will set the entries back to 0 and - * set index. - */ -irqreturn_t iwl_isr_ict(int irq, void *data) -{ - struct iwl_priv *priv = data; - u32 inta, inta_mask; - u32 val = 0; - unsigned long flags; - - if (!priv) - return IRQ_NONE; - - /* dram interrupt table not set yet, - * use legacy interrupt. - */ - if (!priv->_agn.use_ict) - return iwl_isr(irq, data); - - spin_lock_irqsave(&priv->lock, flags); - - /* Disable (but don't clear!) interrupts here to avoid - * back-to-back ISRs and sporadic interrupts from our NIC. - * If we have something to service, the tasklet will re-enable ints. - * If we *don't* have something, we'll re-enable before leaving here. - */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ - iwl_write32(priv, CSR_INT_MASK, 0x00000000); - - - /* Ignore interrupt if there's nothing in NIC to service. - * This may be due to IRQ shared with another device, - * or due to sporadic interrupts thrown from our NIC. */ - if (!priv->_agn.ict_tbl[priv->_agn.ict_index]) { - IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); - goto none; - } - - /* read all entries that not 0 start with ict_index */ - while (priv->_agn.ict_tbl[priv->_agn.ict_index]) { - - val |= le32_to_cpu(priv->_agn.ict_tbl[priv->_agn.ict_index]); - IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n", - priv->_agn.ict_index, - le32_to_cpu(priv->_agn.ict_tbl[priv->_agn.ict_index])); - priv->_agn.ict_tbl[priv->_agn.ict_index] = 0; - priv->_agn.ict_index = iwl_queue_inc_wrap(priv->_agn.ict_index, - ICT_COUNT); - - } - - /* We should not get this value, just ignore it. */ - if (val == 0xffffffff) - val = 0; - - /* - * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit - * (bit 15 before shifting it to 31) to clear when using interrupt - * coalescing. fortunately, bits 18 and 19 stay set when this happens - * so we use them to decide on the real state of the Rx bit. - * In order words, bit 15 is set if bit 18 or bit 19 are set. - */ - if (val & 0xC0000) - val |= 0x8000; - - inta = (0xff & val) | ((0xff00 & val) << 16); - IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n", - inta, inta_mask, val); - - inta &= priv->inta_mask; - priv->_agn.inta |= inta; - - /* iwl_irq_tasklet() will service interrupts and re-enable them */ - if (likely(inta)) - tasklet_schedule(&priv->irq_tasklet); - else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->_agn.inta) { - /* Allow interrupt if was disabled by this handler and - * no tasklet was schedules, We should not enable interrupt, - * tasklet will enable it. - */ - iwl_enable_interrupts(priv); - } - - spin_unlock_irqrestore(&priv->lock, flags); - return IRQ_HANDLED; - - none: - /* re-enable interrupts here since we don't have anything to service. - * only Re-enable if disabled by irq. - */ - if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->_agn.inta) - iwl_enable_interrupts(priv); - - spin_unlock_irqrestore(&priv->lock, flags); - return IRQ_NONE; -} diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index eb2be0d30483..3bee0f119bcd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -53,73 +53,73 @@ static void iwlagn_count_tx_err_status(struct iwl_priv *priv, u16 status) switch (status) { case TX_STATUS_POSTPONE_DELAY: - priv->_agn.reply_tx_stats.pp_delay++; + priv->reply_tx_stats.pp_delay++; break; case TX_STATUS_POSTPONE_FEW_BYTES: - priv->_agn.reply_tx_stats.pp_few_bytes++; + priv->reply_tx_stats.pp_few_bytes++; break; case TX_STATUS_POSTPONE_BT_PRIO: - priv->_agn.reply_tx_stats.pp_bt_prio++; + priv->reply_tx_stats.pp_bt_prio++; break; case TX_STATUS_POSTPONE_QUIET_PERIOD: - priv->_agn.reply_tx_stats.pp_quiet_period++; + priv->reply_tx_stats.pp_quiet_period++; break; case TX_STATUS_POSTPONE_CALC_TTAK: - priv->_agn.reply_tx_stats.pp_calc_ttak++; + priv->reply_tx_stats.pp_calc_ttak++; break; case TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY: - priv->_agn.reply_tx_stats.int_crossed_retry++; + priv->reply_tx_stats.int_crossed_retry++; break; case TX_STATUS_FAIL_SHORT_LIMIT: - priv->_agn.reply_tx_stats.short_limit++; + priv->reply_tx_stats.short_limit++; break; case TX_STATUS_FAIL_LONG_LIMIT: - priv->_agn.reply_tx_stats.long_limit++; + priv->reply_tx_stats.long_limit++; break; case TX_STATUS_FAIL_FIFO_UNDERRUN: - priv->_agn.reply_tx_stats.fifo_underrun++; + priv->reply_tx_stats.fifo_underrun++; break; case TX_STATUS_FAIL_DRAIN_FLOW: - priv->_agn.reply_tx_stats.drain_flow++; + priv->reply_tx_stats.drain_flow++; break; case TX_STATUS_FAIL_RFKILL_FLUSH: - priv->_agn.reply_tx_stats.rfkill_flush++; + priv->reply_tx_stats.rfkill_flush++; break; case TX_STATUS_FAIL_LIFE_EXPIRE: - priv->_agn.reply_tx_stats.life_expire++; + priv->reply_tx_stats.life_expire++; break; case TX_STATUS_FAIL_DEST_PS: - priv->_agn.reply_tx_stats.dest_ps++; + priv->reply_tx_stats.dest_ps++; break; case TX_STATUS_FAIL_HOST_ABORTED: - priv->_agn.reply_tx_stats.host_abort++; + priv->reply_tx_stats.host_abort++; break; case TX_STATUS_FAIL_BT_RETRY: - priv->_agn.reply_tx_stats.bt_retry++; + priv->reply_tx_stats.bt_retry++; break; case TX_STATUS_FAIL_STA_INVALID: - priv->_agn.reply_tx_stats.sta_invalid++; + priv->reply_tx_stats.sta_invalid++; break; case TX_STATUS_FAIL_FRAG_DROPPED: - priv->_agn.reply_tx_stats.frag_drop++; + priv->reply_tx_stats.frag_drop++; break; case TX_STATUS_FAIL_TID_DISABLE: - priv->_agn.reply_tx_stats.tid_disable++; + priv->reply_tx_stats.tid_disable++; break; case TX_STATUS_FAIL_FIFO_FLUSHED: - priv->_agn.reply_tx_stats.fifo_flush++; + priv->reply_tx_stats.fifo_flush++; break; case TX_STATUS_FAIL_INSUFFICIENT_CF_POLL: - priv->_agn.reply_tx_stats.insuff_cf_poll++; + priv->reply_tx_stats.insuff_cf_poll++; break; case TX_STATUS_FAIL_PASSIVE_NO_RX: - priv->_agn.reply_tx_stats.fail_hw_drop++; + priv->reply_tx_stats.fail_hw_drop++; break; case TX_STATUS_FAIL_NO_BEACON_ON_RADAR: - priv->_agn.reply_tx_stats.sta_color_mismatch++; + priv->reply_tx_stats.sta_color_mismatch++; break; default: - priv->_agn.reply_tx_stats.unknown++; + priv->reply_tx_stats.unknown++; break; } } @@ -130,43 +130,43 @@ static void iwlagn_count_agg_tx_err_status(struct iwl_priv *priv, u16 status) switch (status) { case AGG_TX_STATE_UNDERRUN_MSK: - priv->_agn.reply_agg_tx_stats.underrun++; + priv->reply_agg_tx_stats.underrun++; break; case AGG_TX_STATE_BT_PRIO_MSK: - priv->_agn.reply_agg_tx_stats.bt_prio++; + priv->reply_agg_tx_stats.bt_prio++; break; case AGG_TX_STATE_FEW_BYTES_MSK: - priv->_agn.reply_agg_tx_stats.few_bytes++; + priv->reply_agg_tx_stats.few_bytes++; break; case AGG_TX_STATE_ABORT_MSK: - priv->_agn.reply_agg_tx_stats.abort++; + priv->reply_agg_tx_stats.abort++; break; case AGG_TX_STATE_LAST_SENT_TTL_MSK: - priv->_agn.reply_agg_tx_stats.last_sent_ttl++; + priv->reply_agg_tx_stats.last_sent_ttl++; break; case AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK: - priv->_agn.reply_agg_tx_stats.last_sent_try++; + priv->reply_agg_tx_stats.last_sent_try++; break; case AGG_TX_STATE_LAST_SENT_BT_KILL_MSK: - priv->_agn.reply_agg_tx_stats.last_sent_bt_kill++; + priv->reply_agg_tx_stats.last_sent_bt_kill++; break; case AGG_TX_STATE_SCD_QUERY_MSK: - priv->_agn.reply_agg_tx_stats.scd_query++; + priv->reply_agg_tx_stats.scd_query++; break; case AGG_TX_STATE_TEST_BAD_CRC32_MSK: - priv->_agn.reply_agg_tx_stats.bad_crc32++; + priv->reply_agg_tx_stats.bad_crc32++; break; case AGG_TX_STATE_RESPONSE_MSK: - priv->_agn.reply_agg_tx_stats.response++; + priv->reply_agg_tx_stats.response++; break; case AGG_TX_STATE_DUMP_TX_MSK: - priv->_agn.reply_agg_tx_stats.dump_tx++; + priv->reply_agg_tx_stats.dump_tx++; break; case AGG_TX_STATE_DELAY_TX_MSK: - priv->_agn.reply_agg_tx_stats.delay_tx++; + priv->reply_agg_tx_stats.delay_tx++; break; default: - priv->_agn.reply_agg_tx_stats.unknown++; + priv->reply_agg_tx_stats.unknown++; break; } } @@ -391,8 +391,7 @@ void iwl_check_abort_status(struct iwl_priv *priv, } } -static void iwlagn_rx_reply_tx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) +void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); u16 sequence = le16_to_cpu(pkt->hdr.sequence); @@ -401,6 +400,7 @@ static void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_tx_queue *txq = &priv->txq[txq_id]; struct ieee80211_tx_info *info; struct iwlagn_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; + struct ieee80211_hdr *hdr; struct iwl_tx_info *txb; u32 status = le16_to_cpu(tx_resp->status.status); int tid; @@ -427,6 +427,11 @@ static void iwlagn_rx_reply_tx(struct iwl_priv *priv, IWLAGN_TX_RES_RA_POS; spin_lock_irqsave(&priv->sta_lock, flags); + + hdr = (void *)txb->skb->data; + if (!ieee80211_is_data_qos(hdr->frame_control)) + priv->last_seq_ctl = tx_resp->seq_ctl; + if (txq->sched_retry) { const u32 scd_ssn = iwlagn_get_scd_ssn(tx_resp); struct iwl_ht_agg *agg; @@ -479,27 +484,6 @@ static void iwlagn_rx_reply_tx(struct iwl_priv *priv, spin_unlock_irqrestore(&priv->sta_lock, flags); } -void iwlagn_rx_handler_setup(struct iwl_priv *priv) -{ - /* init calibration handlers */ - priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] = - iwlagn_rx_calib_result; - priv->rx_handlers[REPLY_TX] = iwlagn_rx_reply_tx; - - /* set up notification wait support */ - spin_lock_init(&priv->_agn.notif_wait_lock); - INIT_LIST_HEAD(&priv->_agn.notif_waits); - init_waitqueue_head(&priv->_agn.notif_waitq); -} - -void iwlagn_setup_deferred_work(struct iwl_priv *priv) -{ - /* - * nothing need to be done here anymore - * still keep for future use if needed - */ -} - int iwlagn_hw_valid_rtc_data_addr(u32 addr) { return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) && @@ -541,7 +525,7 @@ int iwlagn_send_tx_power(struct iwl_priv *priv) else tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD; - return trans_send_cmd_pdu(priv, tx_ant_cfg_cmd, CMD_SYNC, + return trans_send_cmd_pdu(&priv->trans, tx_ant_cfg_cmd, CMD_SYNC, sizeof(tx_power_cmd), &tx_power_cmd); } @@ -628,283 +612,6 @@ struct iwl_mod_params iwlagn_mod_params = { /* the rest are 0 by default */ }; -int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - u32 rb_size; - const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */ - u32 rb_timeout = 0; /* FIXME: RX_RB_TIMEOUT for all devices? */ - - rb_timeout = RX_RB_TIMEOUT; - - if (iwlagn_mod_params.amsdu_size_8K) - rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K; - else - rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K; - - /* Stop Rx DMA */ - iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); - - /* Reset driver's Rx queue write index */ - iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); - - /* Tell device where to find RBD circular buffer in DRAM */ - iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG, - (u32)(rxq->bd_dma >> 8)); - - /* Tell device where in DRAM to update its Rx status */ - iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG, - rxq->rb_stts_dma >> 4); - - /* Enable Rx DMA - * FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY is set because of HW bug in - * the credit mechanism in 5000 HW RX FIFO - * Direct rx interrupts to hosts - * Rx buffer size 4 or 8k - * RB timeout 0x10 - * 256 RBDs - */ - iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, - FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | - FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY | - FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | - FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK | - rb_size| - (rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)| - (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS)); - - /* Set interrupt coalescing timer to default (2048 usecs) */ - iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF); - - return 0; -} - -static void iwlagn_set_pwr_vmain(struct iwl_priv *priv) -{ -/* - * (for documentation purposes) - * to set power to V_AUX, do: - - if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) - iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VAUX, - ~APMG_PS_CTRL_MSK_PWR_SRC); - */ - - iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, - ~APMG_PS_CTRL_MSK_PWR_SRC); -} - -int iwlagn_hw_nic_init(struct iwl_priv *priv) -{ - unsigned long flags; - struct iwl_rx_queue *rxq = &priv->rxq; - - /* nic_init */ - spin_lock_irqsave(&priv->lock, flags); - iwl_apm_init(priv); - - /* Set interrupt coalescing calibration timer to default (512 usecs) */ - iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF); - - spin_unlock_irqrestore(&priv->lock, flags); - - iwlagn_set_pwr_vmain(priv); - - priv->cfg->ops->lib->nic_config(priv); - - /* Allocate the RX queue, or reset if it is already allocated */ - trans_rx_init(priv); - - iwlagn_rx_replenish(priv); - - iwlagn_rx_init(priv, rxq); - - spin_lock_irqsave(&priv->lock, flags); - - rxq->need_update = 1; - iwl_rx_queue_update_write_ptr(priv, rxq); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Allocate or reset and init all Tx and Command queues */ - if (trans_tx_init(priv)) - return -ENOMEM; - - if (priv->cfg->base_params->shadow_reg_enable) { - /* enable shadow regs in HW */ - iwl_set_bit(priv, CSR_MAC_SHADOW_REG_CTRL, - 0x800FFFFF); - } - - set_bit(STATUS_INIT, &priv->status); - - return 0; -} - -/** - * iwlagn_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr - */ -static inline __le32 iwlagn_dma_addr2rbd_ptr(struct iwl_priv *priv, - dma_addr_t dma_addr) -{ - return cpu_to_le32((u32)(dma_addr >> 8)); -} - -/** - * iwlagn_rx_queue_restock - refill RX queue from pre-allocated pool - * - * If there are slots in the RX queue that need to be restocked, - * and we have free pre-allocated buffers, fill the ranks as much - * as we can, pulling from rx_free. - * - * This moves the 'write' index forward to catch up with 'processed', and - * also updates the memory address in the firmware to reference the new - * target buffer. - */ -void iwlagn_rx_queue_restock(struct iwl_priv *priv) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct list_head *element; - struct iwl_rx_mem_buffer *rxb; - unsigned long flags; - - spin_lock_irqsave(&rxq->lock, flags); - while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) { - /* The overwritten rxb must be a used one */ - rxb = rxq->queue[rxq->write]; - BUG_ON(rxb && rxb->page); - - /* Get next free Rx buffer, remove from free list */ - element = rxq->rx_free.next; - rxb = list_entry(element, struct iwl_rx_mem_buffer, list); - list_del(element); - - /* Point to Rx buffer via next RBD in circular buffer */ - rxq->bd[rxq->write] = iwlagn_dma_addr2rbd_ptr(priv, - rxb->page_dma); - rxq->queue[rxq->write] = rxb; - rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; - rxq->free_count--; - } - spin_unlock_irqrestore(&rxq->lock, flags); - /* If the pre-allocated buffer pool is dropping low, schedule to - * refill it */ - if (rxq->free_count <= RX_LOW_WATERMARK) - queue_work(priv->workqueue, &priv->rx_replenish); - - - /* If we've added more space for the firmware to place data, tell it. - * Increment device's write pointer in multiples of 8. */ - if (rxq->write_actual != (rxq->write & ~0x7)) { - spin_lock_irqsave(&rxq->lock, flags); - rxq->need_update = 1; - spin_unlock_irqrestore(&rxq->lock, flags); - iwl_rx_queue_update_write_ptr(priv, rxq); - } -} - -/** - * iwlagn_rx_replenish - Move all used packet from rx_used to rx_free - * - * When moving to rx_free an SKB is allocated for the slot. - * - * Also restock the Rx queue via iwl_rx_queue_restock. - * This is called as a scheduled work item (except for during initialization) - */ -void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct list_head *element; - struct iwl_rx_mem_buffer *rxb; - struct page *page; - unsigned long flags; - gfp_t gfp_mask = priority; - - while (1) { - spin_lock_irqsave(&rxq->lock, flags); - if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); - return; - } - spin_unlock_irqrestore(&rxq->lock, flags); - - if (rxq->free_count > RX_LOW_WATERMARK) - gfp_mask |= __GFP_NOWARN; - - if (priv->hw_params.rx_page_order > 0) - gfp_mask |= __GFP_COMP; - - /* Alloc a new receive buffer */ - page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order); - if (!page) { - if (net_ratelimit()) - IWL_DEBUG_INFO(priv, "alloc_pages failed, " - "order: %d\n", - priv->hw_params.rx_page_order); - - if ((rxq->free_count <= RX_LOW_WATERMARK) && - net_ratelimit()) - IWL_CRIT(priv, "Failed to alloc_pages with %s. Only %u free buffers remaining.\n", - priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", - rxq->free_count); - /* We don't reschedule replenish work here -- we will - * call the restock method and if it still needs - * more buffers it will schedule replenish */ - return; - } - - spin_lock_irqsave(&rxq->lock, flags); - - if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); - __free_pages(page, priv->hw_params.rx_page_order); - return; - } - element = rxq->rx_used.next; - rxb = list_entry(element, struct iwl_rx_mem_buffer, list); - list_del(element); - - spin_unlock_irqrestore(&rxq->lock, flags); - - BUG_ON(rxb->page); - rxb->page = page; - /* Get physical address of the RB */ - rxb->page_dma = dma_map_page(priv->bus.dev, page, 0, - PAGE_SIZE << priv->hw_params.rx_page_order, - DMA_FROM_DEVICE); - /* dma address must be no more than 36 bits */ - BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36)); - /* and also 256 byte aligned! */ - BUG_ON(rxb->page_dma & DMA_BIT_MASK(8)); - - spin_lock_irqsave(&rxq->lock, flags); - - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; - - spin_unlock_irqrestore(&rxq->lock, flags); - } -} - -void iwlagn_rx_replenish(struct iwl_priv *priv) -{ - unsigned long flags; - - iwlagn_rx_allocate(priv, GFP_KERNEL); - - spin_lock_irqsave(&priv->lock, flags); - iwlagn_rx_queue_restock(priv); - spin_unlock_irqrestore(&priv->lock, flags); -} - -void iwlagn_rx_replenish_now(struct iwl_priv *priv) -{ - iwlagn_rx_allocate(priv, GFP_ATOMIC); - - iwlagn_rx_queue_restock(priv); -} - int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band) { int idx = 0; @@ -1048,7 +755,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv, static int iwl_fill_offch_tx(struct iwl_priv *priv, void *data, size_t maxlen) { - struct sk_buff *skb = priv->_agn.offchan_tx_skb; + struct sk_buff *skb = priv->offchan_tx_skb; if (skb->len < maxlen) maxlen = skb->len; @@ -1134,7 +841,7 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) } else if (priv->scan_type == IWL_SCAN_OFFCH_TX) { scan->suspend_time = 0; scan->max_out_time = - cpu_to_le32(1024 * priv->_agn.offchan_tx_timeout); + cpu_to_le32(1024 * priv->offchan_tx_timeout); } switch (priv->scan_type) { @@ -1322,9 +1029,9 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) scan_ch = (void *)&scan->data[cmd_len]; scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE; scan_ch->channel = - cpu_to_le16(priv->_agn.offchan_tx_chan->hw_value); + cpu_to_le16(priv->offchan_tx_chan->hw_value); scan_ch->active_dwell = - cpu_to_le16(priv->_agn.offchan_tx_timeout); + cpu_to_le16(priv->offchan_tx_timeout); scan_ch->passive_dwell = 0; /* Set txpower levels to defaults */ @@ -1334,7 +1041,7 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) * power level: * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3; */ - if (priv->_agn.offchan_tx_chan->band == IEEE80211_BAND_5GHZ) + if (priv->offchan_tx_chan->band == IEEE80211_BAND_5GHZ) scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; else scan_ch->tx_gain = ((1 << 5) | (5 << 3)); @@ -1360,7 +1067,7 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) if (ret) return ret; - ret = trans_send_cmd(priv, &cmd); + ret = trans_send_cmd(&priv->trans, &cmd); if (ret) { clear_bit(STATUS_SCAN_HW, &priv->status); iwlagn_set_pan_params(priv); @@ -1466,7 +1173,7 @@ int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control) flush_cmd.fifo_control); flush_cmd.flush_control = cpu_to_le16(flush_control); - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); } void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control) @@ -1660,12 +1367,12 @@ void iwlagn_send_advance_bt_config(struct iwl_priv *priv) if (priv->cfg->bt_params->bt_session_2) { memcpy(&bt_cmd_2000.basic, &basic, sizeof(basic)); - ret = trans_send_cmd_pdu(priv, REPLY_BT_CONFIG, + ret = trans_send_cmd_pdu(&priv->trans, REPLY_BT_CONFIG, CMD_SYNC, sizeof(bt_cmd_2000), &bt_cmd_2000); } else { memcpy(&bt_cmd_6000.basic, &basic, sizeof(basic)); - ret = trans_send_cmd_pdu(priv, REPLY_BT_CONFIG, + ret = trans_send_cmd_pdu(&priv->trans, REPLY_BT_CONFIG, CMD_SYNC, sizeof(bt_cmd_6000), &bt_cmd_6000); } if (ret) @@ -1986,15 +1693,12 @@ void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv, void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv) { - iwlagn_rx_handler_setup(priv); priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] = iwlagn_bt_coex_profile_notif; } void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv) { - iwlagn_setup_deferred_work(priv); - INIT_WORK(&priv->bt_traffic_change_work, iwlagn_bt_traffic_change_work); } @@ -2306,9 +2010,9 @@ void iwlagn_init_notification_wait(struct iwl_priv *priv, wait_entry->triggered = false; wait_entry->aborted = false; - spin_lock_bh(&priv->_agn.notif_wait_lock); - list_add(&wait_entry->list, &priv->_agn.notif_waits); - spin_unlock_bh(&priv->_agn.notif_wait_lock); + spin_lock_bh(&priv->notif_wait_lock); + list_add(&wait_entry->list, &priv->notif_waits); + spin_unlock_bh(&priv->notif_wait_lock); } int iwlagn_wait_notification(struct iwl_priv *priv, @@ -2317,13 +2021,13 @@ int iwlagn_wait_notification(struct iwl_priv *priv, { int ret; - ret = wait_event_timeout(priv->_agn.notif_waitq, + ret = wait_event_timeout(priv->notif_waitq, wait_entry->triggered || wait_entry->aborted, timeout); - spin_lock_bh(&priv->_agn.notif_wait_lock); + spin_lock_bh(&priv->notif_wait_lock); list_del(&wait_entry->list); - spin_unlock_bh(&priv->_agn.notif_wait_lock); + spin_unlock_bh(&priv->notif_wait_lock); if (wait_entry->aborted) return -EIO; @@ -2337,93 +2041,7 @@ int iwlagn_wait_notification(struct iwl_priv *priv, void iwlagn_remove_notification(struct iwl_priv *priv, struct iwl_notification_wait *wait_entry) { - spin_lock_bh(&priv->_agn.notif_wait_lock); + spin_lock_bh(&priv->notif_wait_lock); list_del(&wait_entry->list); - spin_unlock_bh(&priv->_agn.notif_wait_lock); -} - -int iwlagn_start_device(struct iwl_priv *priv) -{ - int ret; - - if ((priv->cfg->sku & EEPROM_SKU_CAP_AMT_ENABLE) && - iwl_prepare_card_hw(priv)) { - IWL_WARN(priv, "Exit HW not ready\n"); - return -EIO; - } - - /* If platform's RF_KILL switch is NOT set to KILL */ - if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) - clear_bit(STATUS_RF_KILL_HW, &priv->status); - else - set_bit(STATUS_RF_KILL_HW, &priv->status); - - if (iwl_is_rfkill(priv)) { - wiphy_rfkill_set_hw_state(priv->hw->wiphy, true); - iwl_enable_interrupts(priv); - return -ERFKILL; - } - - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - - ret = iwlagn_hw_nic_init(priv); - if (ret) { - IWL_ERR(priv, "Unable to init nic\n"); - return ret; - } - - /* make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); - - /* clear (again), then enable host interrupts */ - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - iwl_enable_interrupts(priv); - - /* really make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - - return 0; -} - -void iwlagn_stop_device(struct iwl_priv *priv) -{ - unsigned long flags; - - /* stop and reset the on-board processor */ - iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); - - /* tell the device to stop sending interrupts */ - spin_lock_irqsave(&priv->lock, flags); - iwl_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - iwl_synchronize_irq(priv); - - /* device going down, Stop using ICT table */ - iwl_disable_ict(priv); - - /* - * If a HW restart happens during firmware loading, - * then the firmware loading might call this function - * and later it might be called again due to the - * restart. So don't process again if the device is - * already dead. - */ - if (test_bit(STATUS_DEVICE_ENABLED, &priv->status)) { - trans_tx_stop(priv); - trans_rx_stop(priv); - - /* Power-down device's busmaster DMA clocks */ - iwl_write_prph(priv, APMG_CLK_DIS_REG, - APMG_CLK_VAL_DMA_CLK_RQT); - udelay(5); - } - - /* Make sure (redundant) we've released our request to stay awake */ - iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - - /* Stop the device, and put it in low power state */ - iwl_apm_stop(priv); + spin_unlock_bh(&priv->notif_wait_lock); } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index ebcd13bc10d9..3789ff4bf53b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -354,9 +354,11 @@ static void rs_program_fix_rate(struct iwl_priv *priv, lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ +#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL /* testmode has higher priority to overwirte the fixed rate */ if (priv->tm_fixed_rate) lq_sta->dbg_fixed_rate = priv->tm_fixed_rate; +#endif IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n", lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate); @@ -1080,7 +1082,8 @@ done: /* See if there's a better rate or modulation mode to try. */ if (sta && sta->supp_rates[sband->band]) rs_rate_scale_perform(priv, skb, sta, lq_sta); -#ifdef CONFIG_MAC80211_DEBUGFS + +#if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_IWLWIFI_DEVICE_SVTOOL) if ((priv->tm_fixed_rate) && (priv->tm_fixed_rate != lq_sta->dbg_fixed_rate)) rs_program_fix_rate(priv, lq_sta); @@ -2904,8 +2907,9 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i if (sband->band == IEEE80211_BAND_5GHZ) lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE; lq_sta->is_agg = 0; - +#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL priv->tm_fixed_rate = 0; +#endif #ifdef CONFIG_MAC80211_DEBUGFS lq_sta->dbg_fixed_rate = 0; #endif diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index dc64f2515357..d42ef1763a71 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -40,7 +40,7 @@ static int iwlagn_disable_bss(struct iwl_priv *priv, int ret; send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd, + ret = trans_send_cmd_pdu(&priv->trans, ctx->rxon_cmd, CMD_SYNC, sizeof(*send), send); send->filter_flags = old_filter; @@ -66,7 +66,7 @@ static int iwlagn_disable_pan(struct iwl_priv *priv, send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; send->dev_type = RXON_DEV_TYPE_P2P; - ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd, + ret = trans_send_cmd_pdu(&priv->trans, ctx->rxon_cmd, CMD_SYNC, sizeof(*send), send); send->filter_flags = old_filter; @@ -92,7 +92,7 @@ static int iwlagn_disconn_pan(struct iwl_priv *priv, int ret; send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC, + ret = trans_send_cmd_pdu(&priv->trans, ctx->rxon_cmd, CMD_SYNC, sizeof(*send), send); send->filter_flags = old_filter; @@ -121,7 +121,7 @@ static void iwlagn_update_qos(struct iwl_priv *priv, ctx->qos_data.qos_active, ctx->qos_data.def_qos_parm.qos_flags); - ret = trans_send_cmd_pdu(priv, ctx->qos_cmd, CMD_SYNC, + ret = trans_send_cmd_pdu(&priv->trans, ctx->qos_cmd, CMD_SYNC, sizeof(struct iwl_qosparam_cmd), &ctx->qos_data.def_qos_parm); if (ret) @@ -180,7 +180,7 @@ static int iwlagn_send_rxon_assoc(struct iwl_priv *priv, ctx->staging.ofdm_ht_triple_stream_basic_rates; rxon_assoc.acquisition_data = ctx->staging.acquisition_data; - ret = trans_send_cmd_pdu(priv, ctx->rxon_assoc_cmd, + ret = trans_send_cmd_pdu(&priv->trans, ctx->rxon_assoc_cmd, CMD_ASYNC, sizeof(rxon_assoc), &rxon_assoc); return ret; } @@ -266,7 +266,7 @@ static int iwlagn_rxon_connect(struct iwl_priv *priv, * Associated RXON doesn't clear the station table in uCode, * so we don't need to restore stations etc. after this. */ - ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC, + ret = trans_send_cmd_pdu(&priv->trans, ctx->rxon_cmd, CMD_SYNC, sizeof(struct iwl_rxon_cmd), &ctx->staging); if (ret) { IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); @@ -303,6 +303,98 @@ static int iwlagn_rxon_connect(struct iwl_priv *priv, return 0; } +int iwlagn_set_pan_params(struct iwl_priv *priv) +{ + struct iwl_wipan_params_cmd cmd; + struct iwl_rxon_context *ctx_bss, *ctx_pan; + int slot0 = 300, slot1 = 0; + int ret; + + if (priv->valid_contexts == BIT(IWL_RXON_CTX_BSS)) + return 0; + + BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); + + lockdep_assert_held(&priv->mutex); + + ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS]; + ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN]; + + /* + * If the PAN context is inactive, then we don't need + * to update the PAN parameters, the last thing we'll + * have done before it goes inactive is making the PAN + * parameters be WLAN-only. + */ + if (!ctx_pan->is_active) + return 0; + + memset(&cmd, 0, sizeof(cmd)); + + /* only 2 slots are currently allowed */ + cmd.num_slots = 2; + + cmd.slots[0].type = 0; /* BSS */ + cmd.slots[1].type = 1; /* PAN */ + + if (priv->hw_roc_channel) { + /* both contexts must be used for this to happen */ + slot1 = priv->hw_roc_duration; + slot0 = IWL_MIN_SLOT_TIME; + } else if (ctx_bss->vif && ctx_pan->vif) { + int bcnint = ctx_pan->beacon_int; + int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1; + + /* should be set, but seems unused?? */ + cmd.flags |= cpu_to_le16(IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE); + + if (ctx_pan->vif->type == NL80211_IFTYPE_AP && + bcnint && + bcnint != ctx_bss->beacon_int) { + IWL_ERR(priv, + "beacon intervals don't match (%d, %d)\n", + ctx_bss->beacon_int, ctx_pan->beacon_int); + } else + bcnint = max_t(int, bcnint, + ctx_bss->beacon_int); + if (!bcnint) + bcnint = DEFAULT_BEACON_INTERVAL; + slot0 = bcnint / 2; + slot1 = bcnint - slot0; + + if (test_bit(STATUS_SCAN_HW, &priv->status) || + (!ctx_bss->vif->bss_conf.idle && + !ctx_bss->vif->bss_conf.assoc)) { + slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME; + slot1 = IWL_MIN_SLOT_TIME; + } else if (!ctx_pan->vif->bss_conf.idle && + !ctx_pan->vif->bss_conf.assoc) { + slot1 = bcnint * 3 - IWL_MIN_SLOT_TIME; + slot0 = IWL_MIN_SLOT_TIME; + } + } else if (ctx_pan->vif) { + slot0 = 0; + slot1 = max_t(int, 1, ctx_pan->vif->bss_conf.dtim_period) * + ctx_pan->beacon_int; + slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1); + + if (test_bit(STATUS_SCAN_HW, &priv->status)) { + slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME; + slot1 = IWL_MIN_SLOT_TIME; + } + } + + cmd.slots[0].width = cpu_to_le16(slot0); + cmd.slots[1].width = cpu_to_le16(slot1); + + ret = trans_send_cmd_pdu(&priv->trans, REPLY_WIPAN_PARAMS, CMD_SYNC, + sizeof(cmd), &cmd); + if (ret) + IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret); + + return ret; +} + /** * iwlagn_commit_rxon - commit staging_rxon to hardware * @@ -345,8 +437,8 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) /* always get timestamp with Rx frame */ ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK; - if (ctx->ctxid == IWL_RXON_CTX_PAN && priv->_agn.hw_roc_channel) { - struct ieee80211_channel *chan = priv->_agn.hw_roc_channel; + if (ctx->ctxid == IWL_RXON_CTX_PAN && priv->hw_roc_channel) { + struct ieee80211_channel *chan = priv->hw_roc_channel; iwl_set_rxon_channel(priv, chan, ctx); iwl_set_flags_for_band(priv, ctx, chan->band, NULL); @@ -694,8 +786,8 @@ static void iwlagn_chain_noise_reset(struct iwl_priv *priv) memset(&cmd, 0, sizeof(cmd)); iwl_set_calib_hdr(&cmd.hdr, - priv->_agn.phy_calib_chain_noise_reset_cmd); - ret = trans_send_cmd_pdu(priv, + priv->phy_calib_chain_noise_reset_cmd); + ret = trans_send_cmd_pdu(&priv->trans, REPLY_PHY_CALIBRATION_CMD, CMD_SYNC, sizeof(cmd), &cmd); if (ret) @@ -762,6 +854,9 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw, iwl_wake_any_queue(priv, ctx); } ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + + if (ctx->ctxid == IWL_RXON_CTX_BSS) + priv->have_rekey_data = false; } iwlagn_bt_coex_rssi_monitor(priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c index 001622c06526..37e624095e40 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c @@ -139,6 +139,14 @@ int iwlagn_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx return 0; } +/* + * static WEP keys + * + * For each context, the device has a table of 4 static WEP keys + * (one for each key index) that is updated with the following + * commands. + */ + static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, bool send_if_empty) @@ -181,7 +189,7 @@ static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, cmd.len[0] = cmd_size; if (not_empty || send_if_empty) - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); else return 0; } @@ -232,9 +240,7 @@ int iwl_set_default_wep_key(struct iwl_priv *priv, return -EINVAL; } - keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; - keyconf->hw_key_idx = HW_KEY_DEFAULT; - priv->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher; + keyconf->hw_key_idx = IWLAGN_HW_KEY_DEFAULT; ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key, @@ -247,166 +253,117 @@ int iwl_set_default_wep_key(struct iwl_priv *priv, return ret; } -static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - __le16 key_flags = 0; - struct iwl_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; - - key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - key_flags &= ~STA_KEY_FLG_INVALID; - - if (keyconf->keylen == WEP_KEY_LEN_128) - key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; - - if (sta_id == ctx->bcast_sta_id) - key_flags |= STA_KEY_MULTICAST_MSK; - - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; - priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; - - memcpy(priv->stations[sta_id].keyinfo.key, - keyconf->key, keyconf->keylen); - - memcpy(&priv->stations[sta_id].sta.key.key[3], - keyconf->key, keyconf->keylen); - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ +/* + * dynamic (per-station) keys + * + * The dynamic keys are a little more complicated. The device has + * a key cache of up to STA_KEY_MAX_NUM/STA_KEY_MAX_NUM_PAN keys. + * These are linked to stations by a table that contains an index + * into the key table for each station/key index/{mcast,unicast}, + * i.e. it's basically an array of pointers like this: + * key_offset_t key_mapping[NUM_STATIONS][4][2]; + * (it really works differently, but you can think of it as such) + * + * The key uploading and linking happens in the same command, the + * add station command with STA_MODIFY_KEY_MASK. + */ - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); +static u8 iwlagn_key_sta_id(struct iwl_priv *priv, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; + u8 sta_id = IWL_INVALID_STATION; - priv->stations[sta_id].sta.key.key_flags = key_flags; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + if (sta) + sta_id = iwl_sta_id(sta); - memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); + /* + * The device expects GTKs for station interfaces to be + * installed as GTKs for the AP station. If we have no + * station ID, then use the ap_sta_id in that case. + */ + if (!sta && vif && vif_priv->ctx) { + switch (vif->type) { + case NL80211_IFTYPE_STATION: + sta_id = vif_priv->ctx->ap_sta_id; + break; + default: + /* + * In all other cases, the key will be + * used either for TX only or is bound + * to a station already. + */ + break; + } + } - return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + return sta_id; } -static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) +static int iwlagn_send_sta_key(struct iwl_priv *priv, + struct ieee80211_key_conf *keyconf, + u8 sta_id, u32 tkip_iv32, u16 *tkip_p1k, + u32 cmd_flags) { unsigned long flags; - __le16 key_flags = 0; + __le16 key_flags; struct iwl_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - key_flags &= ~STA_KEY_FLG_INVALID; - - if (sta_id == ctx->bcast_sta_id) - key_flags |= STA_KEY_MULTICAST_MSK; - - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + int i; spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; - - memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, - keyconf->keylen); - - memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, - keyconf->keylen); - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ - - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); - - priv->stations[sta_id].sta.key.key_flags = key_flags; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); + memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(sta_cmd)); spin_unlock_irqrestore(&priv->sta_lock, flags); - return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - int ret = 0; - __le16 key_flags = 0; + key_flags = cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); + key_flags |= STA_KEY_FLG_MAP_KEY_MSK; - key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - key_flags &= ~STA_KEY_FLG_INVALID; + switch (keyconf->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + key_flags |= STA_KEY_FLG_CCMP; + memcpy(sta_cmd.key.key, keyconf->key, keyconf->keylen); + break; + case WLAN_CIPHER_SUITE_TKIP: + key_flags |= STA_KEY_FLG_TKIP; + sta_cmd.key.tkip_rx_tsc_byte2 = tkip_iv32; + for (i = 0; i < 5; i++) + sta_cmd.key.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]); + memcpy(sta_cmd.key.key, keyconf->key, keyconf->keylen); + break; + case WLAN_CIPHER_SUITE_WEP104: + key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; + /* fall through */ + case WLAN_CIPHER_SUITE_WEP40: + key_flags |= STA_KEY_FLG_WEP; + memcpy(&sta_cmd.key.key[3], keyconf->key, keyconf->keylen); + break; + default: + WARN_ON(1); + return -EINVAL; + } - if (sta_id == ctx->bcast_sta_id) + if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) key_flags |= STA_KEY_MULTICAST_MSK; - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + /* key pointer (offset) */ + sta_cmd.key.key_offset = keyconf->hw_key_idx; - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = 16; - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ - - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); - - priv->stations[sta_id].sta.key.key_flags = key_flags; + sta_cmd.key.key_flags = key_flags; + sta_cmd.mode = STA_CONTROL_MODIFY_MSK; + sta_cmd.sta.modify_mask = STA_MODIFY_KEY_MASK; - - /* This copy is acutally not needed: we get the key with each TX */ - memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); - - memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16); - - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return ret; + return iwl_send_add_sta(priv, &sta_cmd, cmd_flags); } void iwl_update_tkip_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, + struct ieee80211_vif *vif, struct ieee80211_key_conf *keyconf, struct ieee80211_sta *sta, u32 iv32, u16 *phase1key) { - u8 sta_id; - unsigned long flags; - int i; + u8 sta_id = iwlagn_key_sta_id(priv, vif, sta); + + if (sta_id == IWL_INVALID_STATION) + return; if (iwl_scan_cancel(priv)) { /* cancel scan failed, just live w/ bad key and rely @@ -414,121 +371,110 @@ void iwl_update_tkip_key(struct iwl_priv *priv, return; } - sta_id = iwl_sta_id_or_broadcast(priv, ctx, sta); - if (sta_id == IWL_INVALID_STATION) - return; - - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; - - for (i = 0; i < 5; i++) - priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = - cpu_to_le16(phase1key[i]); - - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); - - spin_unlock_irqrestore(&priv->sta_lock, flags); - + iwlagn_send_sta_key(priv, keyconf, sta_id, + iv32, phase1key, CMD_ASYNC); } int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_key_conf *keyconf, - u8 sta_id) + struct ieee80211_sta *sta) { unsigned long flags; - u16 key_flags; - u8 keyidx; struct iwl_addsta_cmd sta_cmd; + u8 sta_id = iwlagn_key_sta_id(priv, ctx->vif, sta); + + /* if station isn't there, neither is the key */ + if (sta_id == IWL_INVALID_STATION) + return -ENOENT; + + spin_lock_irqsave(&priv->sta_lock, flags); + memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(sta_cmd)); + if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) + sta_id = IWL_INVALID_STATION; + spin_unlock_irqrestore(&priv->sta_lock, flags); + + if (sta_id == IWL_INVALID_STATION) + return 0; lockdep_assert_held(&priv->mutex); ctx->key_mapping_keys--; - spin_lock_irqsave(&priv->sta_lock, flags); - key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags); - keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; - IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n", keyconf->keyidx, sta_id); - if (keyconf->keyidx != keyidx) { - /* We need to remove a key with index different that the one - * in the uCode. This means that the key we need to remove has - * been replaced by another one with different index. - * Don't do anything and return ok - */ - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } - - if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) { - IWL_WARN(priv, "Removing wrong key %d 0x%x\n", - keyconf->keyidx, key_flags); - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } + if (!test_and_clear_bit(keyconf->hw_key_idx, &priv->ucode_key_table)) + IWL_ERR(priv, "offset %d not used in uCode key table.\n", + keyconf->hw_key_idx); - if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, - &priv->ucode_key_table)) - IWL_ERR(priv, "index %d not used in uCode key table.\n", - priv->stations[sta_id].sta.key.key_offset); - memset(&priv->stations[sta_id].keyinfo, 0, - sizeof(struct iwl_hw_key)); - memset(&priv->stations[sta_id].sta.key, 0, - sizeof(struct iwl_keyinfo)); - priv->stations[sta_id].sta.key.key_flags = - STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; - priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - if (iwl_is_rfkill(priv)) { - IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled.\n"); - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } - memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); + sta_cmd.key.key_flags = STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; + sta_cmd.key.key_offset = WEP_INVALID_OFFSET; + sta_cmd.sta.modify_mask = STA_MODIFY_KEY_MASK; + sta_cmd.mode = STA_CONTROL_MODIFY_MSK; return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); } -int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, u8 sta_id) +int iwl_set_dynamic_key(struct iwl_priv *priv, + struct iwl_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, + struct ieee80211_sta *sta) { + struct ieee80211_key_seq seq; + u16 p1k[5]; int ret; + u8 sta_id = iwlagn_key_sta_id(priv, ctx->vif, sta); + const u8 *addr; + + if (sta_id == IWL_INVALID_STATION) + return -EINVAL; lockdep_assert_held(&priv->mutex); + keyconf->hw_key_idx = iwl_get_free_ucode_key_offset(priv); + if (keyconf->hw_key_idx == WEP_INVALID_OFFSET) + return -ENOSPC; + ctx->key_mapping_keys++; - keyconf->hw_key_idx = HW_KEY_DYNAMIC; switch (keyconf->cipher) { - case WLAN_CIPHER_SUITE_CCMP: - ret = iwl_set_ccmp_dynamic_key_info(priv, ctx, keyconf, sta_id); - break; case WLAN_CIPHER_SUITE_TKIP: - ret = iwl_set_tkip_dynamic_key_info(priv, ctx, keyconf, sta_id); + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + + if (sta) + addr = sta->addr; + else /* station mode case only */ + addr = ctx->active.bssid_addr; + + /* pre-fill phase 1 key into device cache */ + ieee80211_get_key_rx_seq(keyconf, 0, &seq); + ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); + ret = iwlagn_send_sta_key(priv, keyconf, sta_id, + seq.tkip.iv32, p1k, CMD_SYNC); break; + case WLAN_CIPHER_SUITE_CCMP: + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + /* fall through */ case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: - ret = iwl_set_wep_dynamic_key_info(priv, ctx, keyconf, sta_id); + ret = iwlagn_send_sta_key(priv, keyconf, sta_id, + 0, NULL, CMD_SYNC); break; default: - IWL_ERR(priv, - "Unknown alg: %s cipher = %x\n", __func__, - keyconf->cipher); + IWL_ERR(priv, "Unknown cipher %x\n", keyconf->cipher); ret = -EINVAL; } - IWL_DEBUG_WEP(priv, "Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n", + if (ret) { + ctx->key_mapping_keys--; + clear_bit(keyconf->hw_key_idx, &priv->ucode_key_table); + } + + IWL_DEBUG_WEP(priv, "Set dynamic key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", keyconf->cipher, keyconf->keylen, keyconf->keyidx, - sta_id, ret); + sta ? sta->addr : NULL, ret); return ret; } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 7d3aad83e0d6..53bb59ee719d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -39,6 +39,7 @@ #include "iwl-helpers.h" #include "iwl-agn-hw.h" #include "iwl-agn.h" +#include "iwl-trans.h" /* * mac80211 queues, ACs, hardware queues, FIFOs. @@ -95,132 +96,8 @@ static inline int get_fifo_from_tid(struct iwl_rxon_context *ctx, u16 tid) return -EINVAL; } -/** - * iwlagn_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array - */ -static void iwlagn_txq_update_byte_cnt_tbl(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - u16 byte_cnt) -{ - struct iwlagn_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; - int write_ptr = txq->q.write_ptr; - int txq_id = txq->q.id; - u8 sec_ctl = 0; - u8 sta_id = 0; - u16 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; - __le16 bc_ent; - - WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); - - sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id; - sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl; - - switch (sec_ctl & TX_CMD_SEC_MSK) { - case TX_CMD_SEC_CCM: - len += CCMP_MIC_LEN; - break; - case TX_CMD_SEC_TKIP: - len += TKIP_ICV_LEN; - break; - case TX_CMD_SEC_WEP: - len += WEP_IV_LEN + WEP_ICV_LEN; - break; - } - - bc_ent = cpu_to_le16((len & 0xFFF) | (sta_id << 12)); - - scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; - - if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) - scd_bc_tbl[txq_id]. - tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; -} - -static void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, - struct iwl_tx_queue *txq) -{ - struct iwlagn_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; - int txq_id = txq->q.id; - int read_ptr = txq->q.read_ptr; - u8 sta_id = 0; - __le16 bc_ent; - - WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX); - - if (txq_id != priv->cmd_queue) - sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id; - - bc_ent = cpu_to_le16(1 | (sta_id << 12)); - scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent; - - if (read_ptr < TFD_QUEUE_SIZE_BC_DUP) - scd_bc_tbl[txq_id]. - tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent; -} - -static int iwlagn_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, - u16 txq_id) -{ - u32 tbl_dw_addr; - u32 tbl_dw; - u16 scd_q2ratid; - - scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK; - - tbl_dw_addr = priv->scd_base_addr + - IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); - - tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr); - - if (txq_id & 0x1) - tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); - else - tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); - - iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw); - - return 0; -} - -static void iwlagn_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id) -{ - /* Simply stop the queue, but don't change any configuration; - * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ - iwl_write_prph(priv, - IWLAGN_SCD_QUEUE_STATUS_BITS(txq_id), - (0 << IWLAGN_SCD_QUEUE_STTS_REG_POS_ACTIVE)| - (1 << IWLAGN_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); -} - -void iwlagn_set_wr_ptrs(struct iwl_priv *priv, - int txq_id, u32 index) -{ - iwl_write_direct32(priv, HBUS_TARG_WRPTR, - (index & 0xff) | (txq_id << 8)); - iwl_write_prph(priv, IWLAGN_SCD_QUEUE_RDPTR(txq_id), index); -} - -void iwlagn_tx_queue_set_status(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - int tx_fifo_id, int scd_retry) -{ - int txq_id = txq->q.id; - int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0; - - iwl_write_prph(priv, IWLAGN_SCD_QUEUE_STATUS_BITS(txq_id), - (active << IWLAGN_SCD_QUEUE_STTS_REG_POS_ACTIVE) | - (tx_fifo_id << IWLAGN_SCD_QUEUE_STTS_REG_POS_TXF) | - (1 << IWLAGN_SCD_QUEUE_STTS_REG_POS_WSL) | - IWLAGN_SCD_QUEUE_STTS_REG_MSK); - - txq->sched_retry = scd_retry; - - IWL_DEBUG_INFO(priv, "%s %s Queue %d on FIFO %d\n", - active ? "Activate" : "Deactivate", - scd_retry ? "BA" : "AC/CMD", txq_id, tx_fifo_id); -} - -static int iwlagn_txq_agg_enable(struct iwl_priv *priv, int txq_id, int sta_id, int tid) +static int iwlagn_txq_agg_enable(struct iwl_priv *priv, int txq_id, int sta_id, + int tid) { if ((IWLAGN_FIRST_AMPDU_QUEUE > txq_id) || (IWLAGN_FIRST_AMPDU_QUEUE + @@ -237,108 +114,6 @@ static int iwlagn_txq_agg_enable(struct iwl_priv *priv, int txq_id, int sta_id, return iwl_sta_tx_modify_enable_tid(priv, sta_id, tid); } -void iwlagn_txq_agg_queue_setup(struct iwl_priv *priv, - struct ieee80211_sta *sta, - int tid, int frame_limit) -{ - int sta_id, tx_fifo, txq_id, ssn_idx; - u16 ra_tid; - unsigned long flags; - struct iwl_tid_data *tid_data; - - sta_id = iwl_sta_id(sta); - if (WARN_ON(sta_id == IWL_INVALID_STATION)) - return; - if (WARN_ON(tid >= MAX_TID_COUNT)) - return; - - spin_lock_irqsave(&priv->sta_lock, flags); - tid_data = &priv->stations[sta_id].tid[tid]; - ssn_idx = SEQ_TO_SN(tid_data->seq_number); - txq_id = tid_data->agg.txq_id; - tx_fifo = tid_data->agg.tx_fifo; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - ra_tid = BUILD_RAxTID(sta_id, tid); - - spin_lock_irqsave(&priv->lock, flags); - - /* Stop this Tx queue before configuring it */ - iwlagn_tx_queue_stop_scheduler(priv, txq_id); - - /* Map receiver-address / traffic-ID to this queue */ - iwlagn_tx_queue_set_q2ratid(priv, ra_tid, txq_id); - - /* Set this queue as a chain-building queue */ - iwl_set_bits_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL, (1<<txq_id)); - - /* enable aggregations for the queue */ - iwl_set_bits_prph(priv, IWLAGN_SCD_AGGR_SEL, (1<<txq_id)); - - /* Place first TFD at index corresponding to start sequence number. - * Assumes that ssn_idx is valid (!= 0xFFF) */ - priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); - priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); - iwlagn_set_wr_ptrs(priv, txq_id, ssn_idx); - - /* Set up Tx window size and frame limit for this queue */ - iwl_write_targ_mem(priv, priv->scd_base_addr + - IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + - sizeof(u32), - ((frame_limit << - IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & - IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | - ((frame_limit << - IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & - IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); - - iwl_set_bits_prph(priv, IWLAGN_SCD_INTERRUPT_MASK, (1 << txq_id)); - - /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ - iwlagn_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1); - - spin_unlock_irqrestore(&priv->lock, flags); -} - -static int iwlagn_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, - u16 ssn_idx, u8 tx_fifo) -{ - if ((IWLAGN_FIRST_AMPDU_QUEUE > txq_id) || - (IWLAGN_FIRST_AMPDU_QUEUE + - priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) { - IWL_ERR(priv, - "queue number out of range: %d, must be %d to %d\n", - txq_id, IWLAGN_FIRST_AMPDU_QUEUE, - IWLAGN_FIRST_AMPDU_QUEUE + - priv->cfg->base_params->num_of_ampdu_queues - 1); - return -EINVAL; - } - - iwlagn_tx_queue_stop_scheduler(priv, txq_id); - - iwl_clear_bits_prph(priv, IWLAGN_SCD_AGGR_SEL, (1 << txq_id)); - - priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); - priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); - /* supposes that ssn_idx is valid (!= 0xFFF) */ - iwlagn_set_wr_ptrs(priv, txq_id, ssn_idx); - - iwl_clear_bits_prph(priv, IWLAGN_SCD_INTERRUPT_MASK, (1 << txq_id)); - iwl_txq_ctx_deactivate(priv, txq_id); - iwlagn_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); - - return 0; -} - -/* - * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask - * must be called under priv->lock and mac access - */ -void iwlagn_txq_set_sched(struct iwl_priv *priv, u32 mask) -{ - iwl_write_prph(priv, IWLAGN_SCD_TXFACT, mask); -} - static void iwlagn_tx_cmd_protection(struct iwl_priv *priv, struct ieee80211_tx_info *info, __le16 fc, __le32 *tx_flags) @@ -363,19 +138,15 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv, __le32 tx_flags = tx_cmd->tx_flags; tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { + + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) tx_flags |= TX_CMD_FLG_ACK_MSK; - if (ieee80211_is_mgmt(fc)) - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - if (ieee80211_is_probe_resp(fc) && - !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) - tx_flags |= TX_CMD_FLG_TSF_MSK; - } else { - tx_flags &= (~TX_CMD_FLG_ACK_MSK); - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - } + else + tx_flags &= ~TX_CMD_FLG_ACK_MSK; - if (ieee80211_is_back_req(fc)) + if (ieee80211_is_probe_resp(fc)) + tx_flags |= TX_CMD_FLG_TSF_MSK; + else if (ieee80211_is_back_req(fc)) tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK; else if (info->band == IEEE80211_BAND_2GHZ && priv->cfg->bt_params && @@ -446,6 +217,7 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv, if (ieee80211_is_data(fc)) { tx_cmd->initial_rate_index = 0; tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK; +#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL if (priv->tm_fixed_rate) { /* * rate overwrite by testmode @@ -456,6 +228,7 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv, memcpy(&tx_cmd->rate_n_flags, &priv->tm_fixed_rate, sizeof(tx_cmd->rate_n_flags)); } +#endif return; } @@ -547,26 +320,17 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_sta *sta = info->control.sta; struct iwl_station_priv *sta_priv = NULL; - struct iwl_tx_queue *txq; - struct iwl_queue *q; - struct iwl_device_cmd *out_cmd; - struct iwl_cmd_meta *out_meta; - struct iwl_tx_cmd *tx_cmd; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + struct iwl_tx_cmd *tx_cmd; int txq_id; - dma_addr_t phys_addr = 0; - dma_addr_t txcmd_phys; - dma_addr_t scratch_phys; - u16 len, firstlen, secondlen; + u16 seq_number = 0; __le16 fc; u8 hdr_len; + u16 len; u8 sta_id; - u8 wait_write_ptr = 0; u8 tid = 0; - u8 *qc = NULL; unsigned long flags; bool is_agg = false; @@ -614,8 +378,8 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) IWL_DEBUG_TX(priv, "station Id %d\n", sta_id); - if (sta) - sta_priv = (void *)sta->drv_priv; + if (info->control.sta) + sta_priv = (void *)info->control.sta->drv_priv; if (sta_priv && sta_priv->asleep && (info->flags & IEEE80211_TX_CTL_PSPOLL_RESPONSE)) { @@ -650,6 +414,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) spin_lock(&priv->sta_lock); if (ieee80211_is_data_qos(fc)) { + u8 *qc = NULL; qc = ieee80211_get_qos_ctl(hdr); tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; @@ -670,38 +435,13 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) } } - txq = &priv->txq[txq_id]; - q = &txq->q; - - if (unlikely(iwl_queue_space(q) < q->high_mark)) + tx_cmd = trans_get_tx_cmd(&priv->trans, txq_id); + if (unlikely(!tx_cmd)) goto drop_unlock_sta; - /* Set up driver data for this TFD */ - memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); - txq->txb[q->write_ptr].skb = skb; - txq->txb[q->write_ptr].ctx = ctx; - - /* Set up first empty entry in queue's array of Tx/cmd buffers */ - out_cmd = txq->cmd[q->write_ptr]; - out_meta = &txq->meta[q->write_ptr]; - tx_cmd = &out_cmd->cmd.tx; - memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); - memset(tx_cmd, 0, sizeof(struct iwl_tx_cmd)); - - /* - * Set up the Tx-command (not MAC!) header. - * Store the chosen Tx queue and TFD index within the sequence field; - * after Tx, uCode's Tx response will return this value so driver can - * locate the frame within the tx queue and do post-tx processing. - */ - out_cmd->hdr.cmd = REPLY_TX; - out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | - INDEX_TO_SEQ(q->write_ptr))); - /* Copy MAC header from skb into command buffer */ memcpy(tx_cmd->hdr, hdr, hdr_len); - /* Total # bytes to be transmitted */ len = (u16)skb->len; tx_cmd->len = cpu_to_le16(len); @@ -716,54 +456,9 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) iwlagn_tx_cmd_build_rate(priv, tx_cmd, info, fc); iwl_update_stats(priv, true, fc, len); - /* - * Use the first empty entry in this queue's command buffer array - * to contain the Tx command and MAC header concatenated together - * (payload data will be in another buffer). - * Size of this varies, due to varying MAC header length. - * If end is not dword aligned, we'll have 2 extra bytes at the end - * of the MAC header (device reads on dword boundaries). - * We'll tell device about this padding later. - */ - len = sizeof(struct iwl_tx_cmd) + - sizeof(struct iwl_cmd_header) + hdr_len; - firstlen = (len + 3) & ~3; - - /* Tell NIC about any 2-byte padding after MAC header */ - if (firstlen != len) - tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK; - - /* Physical address of this Tx command's header (not MAC header!), - * within command buffer array. */ - txcmd_phys = dma_map_single(priv->bus.dev, - &out_cmd->hdr, firstlen, - DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(priv->bus.dev, txcmd_phys))) - goto drop_unlock_sta; - dma_unmap_addr_set(out_meta, mapping, txcmd_phys); - dma_unmap_len_set(out_meta, len, firstlen); - - if (!ieee80211_has_morefrags(hdr->frame_control)) { - txq->need_update = 1; - } else { - wait_write_ptr = 1; - txq->need_update = 0; - } - /* Set up TFD's 2nd entry to point directly to remainder of skb, - * if any (802.11 null frames have no payload). */ - secondlen = skb->len - hdr_len; - if (secondlen > 0) { - phys_addr = dma_map_single(priv->bus.dev, skb->data + hdr_len, - secondlen, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(priv->bus.dev, phys_addr))) { - dma_unmap_single(priv->bus.dev, - dma_unmap_addr(out_meta, mapping), - dma_unmap_len(out_meta, len), - DMA_BIDIRECTIONAL); - goto drop_unlock_sta; - } - } + if (trans_tx(&priv->trans, skb, tx_cmd, txq_id, fc, is_agg, ctx)) + goto drop_unlock_sta; if (ieee80211_is_data_qos(fc)) { priv->stations[sta_id].tid[tid].tfds_in_queue++; @@ -772,55 +467,9 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) } spin_unlock(&priv->sta_lock); - - /* Attach buffers to TFD */ - iwlagn_txq_attach_buf_to_tfd(priv, txq, txcmd_phys, firstlen, 1); - if (secondlen > 0) - iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr, - secondlen, 0); - - scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) + - offsetof(struct iwl_tx_cmd, scratch); - - /* take back ownership of DMA buffer to enable update */ - dma_sync_single_for_cpu(priv->bus.dev, txcmd_phys, firstlen, - DMA_BIDIRECTIONAL); - tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys); - tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys); - - IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n", - le16_to_cpu(out_cmd->hdr.sequence)); - IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len); - - /* Set up entry for this TFD in Tx byte-count array */ - if (info->flags & IEEE80211_TX_CTL_AMPDU) - iwlagn_txq_update_byte_cnt_tbl(priv, txq, - le16_to_cpu(tx_cmd->len)); - - dma_sync_single_for_device(priv->bus.dev, txcmd_phys, firstlen, - DMA_BIDIRECTIONAL); - - trace_iwlwifi_dev_tx(priv, - &((struct iwl_tfd *)txq->tfds)[txq->q.write_ptr], - sizeof(struct iwl_tfd), - &out_cmd->hdr, firstlen, - skb->data + hdr_len, secondlen); - - /* Tell device the write index *just past* this latest filled TFD */ - q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); - iwl_txq_update_write_ptr(priv, txq); spin_unlock_irqrestore(&priv->lock, flags); /* - * At this point the frame is "transmitted" successfully - * and we will get a TX status notification eventually, - * regardless of the value of ret. "ret" only indicates - * whether or not we should update the write pointer. - */ - - /* * Avoid atomic ops if it isn't an associated client. * Also, if this is a packet for aggregation, don't * increase the counter because the ucode will stop @@ -830,17 +479,6 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) if (sta_priv && sta_priv->client && !is_agg) atomic_inc(&sta_priv->pending_frames); - if ((iwl_queue_space(q) < q->high_mark) && priv->mac80211_registered) { - if (wait_write_ptr) { - spin_lock_irqsave(&priv->lock, flags); - txq->need_update = 1; - iwl_txq_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - } else { - iwl_stop_queue(priv, txq); - } - } - return 0; drop_unlock_sta: @@ -997,7 +635,7 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, * to deactivate the uCode queue, just return "success" to allow * mac80211 to clean up it own data. */ - iwlagn_txq_agg_disable(priv, txq_id, ssn, tx_fifo_id); + trans_txq_agg_disable(&priv->trans, txq_id, ssn, tx_fifo_id); spin_unlock_irqrestore(&priv->lock, flags); ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); @@ -1026,7 +664,8 @@ int iwlagn_txq_check_empty(struct iwl_priv *priv, u16 ssn = SEQ_TO_SN(tid_data->seq_number); int tx_fifo = get_fifo_from_tid(ctx, tid); IWL_DEBUG_HT(priv, "HW queue empty: continue DELBA flow\n"); - iwlagn_txq_agg_disable(priv, txq_id, ssn, tx_fifo); + trans_txq_agg_disable(&priv->trans, txq_id, + ssn, tx_fifo); tid_data->agg.state = IWL_AGG_OFF; ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid); } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c index 06304a681ed3..a895a099d086 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c @@ -41,38 +41,6 @@ #include "iwl-agn-calib.h" #include "iwl-trans.h" -#define IWL_AC_UNSET -1 - -struct queue_to_fifo_ac { - s8 fifo, ac; -}; - -static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = { - { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, - { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, - { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, - { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, - { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, -}; - -static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = { - { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, - { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, - { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, - { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, - { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, }, - { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, }, - { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, }, - { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, }, - { IWL_TX_FIFO_BE_IPAN, 2, }, - { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, -}; - static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = { {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP, 0, COEX_UNASSOC_IDLE_FLAGS}, @@ -199,12 +167,12 @@ static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv) memset(&cmd, 0, sizeof(cmd)); iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD); - cmd.radio_sensor_offset = le16_to_cpu(offset_calib[1]); + memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(offset_calib)); if (!(cmd.radio_sensor_offset)) cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET; IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n", - cmd.radio_sensor_offset); + le16_to_cpu(cmd.radio_sensor_offset)); return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET], (u8 *)&cmd, sizeof(cmd)); } @@ -222,9 +190,10 @@ static int iwlagn_send_calib_cfg(struct iwl_priv *priv) calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL; - calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL; + calib_cfg_cmd.ucd_calib_cfg.flags = + IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK; - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); } void iwlagn_rx_calib_result(struct iwl_priv *priv, @@ -322,7 +291,7 @@ static int iwlagn_send_wimax_coex(struct iwl_priv *priv) /* coexistence is disabled */ memset(&coex_cmd, 0, sizeof(coex_cmd)); } - return trans_send_cmd_pdu(priv, + return trans_send_cmd_pdu(&priv->trans, COEX_PRIORITY_TABLE_CMD, CMD_SYNC, sizeof(coex_cmd), &coex_cmd); } @@ -355,7 +324,7 @@ void iwlagn_send_prio_tbl(struct iwl_priv *priv) memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl, sizeof(iwlagn_bt_prio_tbl)); - if (trans_send_cmd_pdu(priv, + if (trans_send_cmd_pdu(&priv->trans, REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC, sizeof(prio_tbl_cmd), &prio_tbl_cmd)) IWL_ERR(priv, "failed to send BT prio tbl command\n"); @@ -368,7 +337,7 @@ int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type) env_cmd.action = action; env_cmd.type = type; - ret = trans_send_cmd_pdu(priv, + ret = trans_send_cmd_pdu(&priv->trans, REPLY_BT_COEX_PROT_ENV, CMD_SYNC, sizeof(env_cmd), &env_cmd); if (ret) @@ -379,111 +348,9 @@ int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type) static int iwlagn_alive_notify(struct iwl_priv *priv) { - const struct queue_to_fifo_ac *queue_to_fifo; - struct iwl_rxon_context *ctx; - u32 a; - unsigned long flags; - int i, chan; - u32 reg_val; int ret; - spin_lock_irqsave(&priv->lock, flags); - - priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR); - a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND; - /* reset conext data memory */ - for (; a < priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND; - a += 4) - iwl_write_targ_mem(priv, a, 0); - /* reset tx status memory */ - for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND; - a += 4) - iwl_write_targ_mem(priv, a, 0); - for (; a < priv->scd_base_addr + - IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4) - iwl_write_targ_mem(priv, a, 0); - - iwl_write_prph(priv, IWLAGN_SCD_DRAM_BASE_ADDR, - priv->scd_bc_tbls.dma >> 10); - - /* Enable DMA channel */ - for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++) - iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan), - FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | - FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE); - - /* Update FH chicken bits */ - reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG); - iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG, - reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); - - iwl_write_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL, - IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv)); - iwl_write_prph(priv, IWLAGN_SCD_AGGR_SEL, 0); - - /* initiate the queues */ - for (i = 0; i < priv->hw_params.max_txq_num; i++) { - iwl_write_prph(priv, IWLAGN_SCD_QUEUE_RDPTR(i), 0); - iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); - iwl_write_targ_mem(priv, priv->scd_base_addr + - IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i), 0); - iwl_write_targ_mem(priv, priv->scd_base_addr + - IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i) + - sizeof(u32), - ((SCD_WIN_SIZE << - IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & - IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | - ((SCD_FRAME_LIMIT << - IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & - IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); - } - - iwl_write_prph(priv, IWLAGN_SCD_INTERRUPT_MASK, - IWL_MASK(0, priv->hw_params.max_txq_num)); - - /* Activate all Tx DMA/FIFO channels */ - iwlagn_txq_set_sched(priv, IWL_MASK(0, 7)); - - /* map queues to FIFOs */ - if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)) - queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo; - else - queue_to_fifo = iwlagn_default_queue_to_tx_fifo; - - iwlagn_set_wr_ptrs(priv, priv->cmd_queue, 0); - - /* make sure all queue are not stopped */ - memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); - for (i = 0; i < 4; i++) - atomic_set(&priv->queue_stop_count[i], 0); - for_each_context(priv, ctx) - ctx->last_tx_rejected = false; - - /* reset to 0 to enable all the queue first */ - priv->txq_ctx_active_msk = 0; - - BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10); - BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10); - - for (i = 0; i < 10; i++) { - int fifo = queue_to_fifo[i].fifo; - int ac = queue_to_fifo[i].ac; - - iwl_txq_ctx_activate(priv, i); - - if (fifo == IWL_TX_FIFO_UNUSED) - continue; - - if (ac != IWL_AC_UNSET) - iwl_set_swq_id(&priv->txq[i], ac, i); - iwlagn_tx_queue_set_status(priv, &priv->txq[i], fifo, 0); - } - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Enable L1-Active */ - iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + trans_tx_start(&priv->trans); ret = iwlagn_send_wimax_coex(priv); if (ret) @@ -611,7 +478,7 @@ int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv, int ret; enum iwlagn_ucode_type old_type; - ret = iwlagn_start_device(priv); + ret = trans_start_device(&priv->trans); if (ret) return ret; @@ -628,8 +495,7 @@ int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv, return ret; } - /* Remove all resets to allow NIC to operate */ - iwl_write32(priv, CSR_RESET, 0); + trans_kick_nic(&priv->trans); /* * Some things may run in the background now, but we @@ -647,14 +513,21 @@ int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv, return -EIO; } - ret = iwl_verify_ucode(priv, image); - if (ret) { - priv->ucode_type = old_type; - return ret; - } + /* + * This step takes a long time (60-80ms!!) and + * WoWLAN image should be loaded quickly, so + * skip it for WoWLAN. + */ + if (ucode_type != IWL_UCODE_WOWLAN) { + ret = iwl_verify_ucode(priv, image); + if (ret) { + priv->ucode_type = old_type; + return ret; + } - /* delay a bit to give rfkill time to run */ - msleep(5); + /* delay a bit to give rfkill time to run */ + msleep(5); + } ret = iwlagn_alive_notify(priv); if (ret) { @@ -707,6 +580,6 @@ int iwlagn_run_init_ucode(struct iwl_priv *priv) iwlagn_remove_notification(priv, &calib_wait); out: /* Whatever happened, stop the device */ - iwlagn_stop_device(priv); + trans_stop_device(&priv->trans); return ret; } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 38a1e4f58829..b0ae4de7f083 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -26,9 +26,6 @@ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -55,7 +52,7 @@ #include "iwl-sta.h" #include "iwl-agn-calib.h" #include "iwl-agn.h" -#include "iwl-pci.h" +#include "iwl-bus.h" #include "iwl-trans.h" /****************************************************************************** @@ -206,7 +203,7 @@ int iwlagn_send_beacon_cmd(struct iwl_priv *priv) cmd.data[1] = priv->beacon_skb->data; cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); } static void iwl_bg_beacon_update(struct work_struct *work) @@ -375,7 +372,7 @@ static void iwl_continuous_event_trace(struct iwl_priv *priv) u32 next_entry; /* index of next entry to be written by uCode */ base = priv->device_pointers.error_event_table; - if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + if (iwlagn_hw_valid_rtc_data_addr(base)) { capacity = iwl_read_targ_mem(priv, base); num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); @@ -457,380 +454,6 @@ static void iwl_bg_tx_flush(struct work_struct *work) iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); } -/** - * iwl_rx_handle - Main entry function for receiving responses from uCode - * - * Uses the priv->rx_handlers callback function array to invoke - * the appropriate handlers, including command responses, - * frame-received notifications, and other notifications. - */ -static void iwl_rx_handle(struct iwl_priv *priv) -{ - struct iwl_rx_mem_buffer *rxb; - struct iwl_rx_packet *pkt; - struct iwl_rx_queue *rxq = &priv->rxq; - u32 r, i; - int reclaim; - unsigned long flags; - u8 fill_rx = 0; - u32 count = 8; - int total_empty; - - /* uCode's read index (stored in shared DRAM) indicates the last Rx - * buffer that the driver may process (last buffer filled by ucode). */ - r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; - i = rxq->read; - - /* Rx interrupt, but nothing sent from uCode */ - if (i == r) - IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); - - /* calculate total frames need to be restock after handling RX */ - total_empty = r - rxq->write_actual; - if (total_empty < 0) - total_empty += RX_QUEUE_SIZE; - - if (total_empty > (RX_QUEUE_SIZE / 2)) - fill_rx = 1; - - while (i != r) { - int len; - - rxb = rxq->queue[i]; - - /* If an RXB doesn't have a Rx queue slot associated with it, - * then a bug has been introduced in the queue refilling - * routines -- catch it here */ - if (WARN_ON(rxb == NULL)) { - i = (i + 1) & RX_QUEUE_MASK; - continue; - } - - rxq->queue[i] = NULL; - - dma_unmap_page(priv->bus.dev, rxb->page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - DMA_FROM_DEVICE); - pkt = rxb_addr(rxb); - - len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - len += sizeof(u32); /* account for status word */ - trace_iwlwifi_dev_rx(priv, pkt, len); - - /* Reclaim a command buffer only if this packet is a response - * to a (driver-originated) command. - * If the packet (e.g. Rx frame) originated from uCode, - * there is no command buffer to reclaim. - * Ucode should set SEQ_RX_FRAME bit if ucode-originated, - * but apparently a few don't get set; catch them here. */ - reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && - (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && - (pkt->hdr.cmd != REPLY_RX) && - (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && - (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && - (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && - (pkt->hdr.cmd != REPLY_TX); - - /* - * Do the notification wait before RX handlers so - * even if the RX handler consumes the RXB we have - * access to it in the notification wait entry. - */ - if (!list_empty(&priv->_agn.notif_waits)) { - struct iwl_notification_wait *w; - - spin_lock(&priv->_agn.notif_wait_lock); - list_for_each_entry(w, &priv->_agn.notif_waits, list) { - if (w->cmd == pkt->hdr.cmd) { - w->triggered = true; - if (w->fn) - w->fn(priv, pkt, w->fn_data); - } - } - spin_unlock(&priv->_agn.notif_wait_lock); - - wake_up_all(&priv->_agn.notif_waitq); - } - if (priv->pre_rx_handler) - priv->pre_rx_handler(priv, rxb); - - /* Based on type of command response or notification, - * handle those that need handling via function in - * rx_handlers table. See iwl_setup_rx_handlers() */ - if (priv->rx_handlers[pkt->hdr.cmd]) { - IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, - i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); - priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; - priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); - } else { - /* No handling needed */ - IWL_DEBUG_RX(priv, - "r %d i %d No handler needed for %s, 0x%02x\n", - r, i, get_cmd_string(pkt->hdr.cmd), - pkt->hdr.cmd); - } - - /* - * XXX: After here, we should always check rxb->page - * against NULL before touching it or its virtual - * memory (pkt). Because some rx_handler might have - * already taken or freed the pages. - */ - - if (reclaim) { - /* Invoke any callbacks, transfer the buffer to caller, - * and fire off the (possibly) blocking - * trans_send_cmd() - * as we reclaim the driver command queue */ - if (rxb->page) - iwl_tx_cmd_complete(priv, rxb); - else - IWL_WARN(priv, "Claim null rxb?\n"); - } - - /* Reuse the page if possible. For notification packets and - * SKBs that fail to Rx correctly, add them back into the - * rx_free list for reuse later. */ - spin_lock_irqsave(&rxq->lock, flags); - if (rxb->page != NULL) { - rxb->page_dma = dma_map_page(priv->bus.dev, rxb->page, - 0, PAGE_SIZE << priv->hw_params.rx_page_order, - DMA_FROM_DEVICE); - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; - } else - list_add_tail(&rxb->list, &rxq->rx_used); - - spin_unlock_irqrestore(&rxq->lock, flags); - - i = (i + 1) & RX_QUEUE_MASK; - /* If there are a lot of unused frames, - * restock the Rx queue so ucode wont assert. */ - if (fill_rx) { - count++; - if (count >= 8) { - rxq->read = i; - iwlagn_rx_replenish_now(priv); - count = 0; - } - } - } - - /* Backtrack one entry */ - rxq->read = i; - if (fill_rx) - iwlagn_rx_replenish_now(priv); - else - iwlagn_rx_queue_restock(priv); -} - -/* tasklet for iwlagn interrupt */ -static void iwl_irq_tasklet(struct iwl_priv *priv) -{ - u32 inta = 0; - u32 handled = 0; - unsigned long flags; - u32 i; -#ifdef CONFIG_IWLWIFI_DEBUG - u32 inta_mask; -#endif - - spin_lock_irqsave(&priv->lock, flags); - - /* Ack/clear/reset pending uCode interrupts. - * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, - */ - /* There is a hardware bug in the interrupt mask function that some - * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if - * they are disabled in the CSR_INT_MASK register. Furthermore the - * ICT interrupt handling mechanism has another bug that might cause - * these unmasked interrupts fail to be detected. We workaround the - * hardware bugs here by ACKing all the possible interrupts so that - * interrupt coalescing can still be achieved. - */ - iwl_write32(priv, CSR_INT, priv->_agn.inta | ~priv->inta_mask); - - inta = priv->_agn.inta; - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & IWL_DL_ISR) { - /* just for debug */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); - IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ", - inta, inta_mask); - } -#endif - - spin_unlock_irqrestore(&priv->lock, flags); - - /* saved interrupt in inta variable now we can reset priv->_agn.inta */ - priv->_agn.inta = 0; - - /* Now service all interrupt bits discovered above. */ - if (inta & CSR_INT_BIT_HW_ERR) { - IWL_ERR(priv, "Hardware error detected. Restarting.\n"); - - /* Tell the device to stop sending interrupts */ - iwl_disable_interrupts(priv); - - priv->isr_stats.hw++; - iwl_irq_handle_error(priv); - - handled |= CSR_INT_BIT_HW_ERR; - - return; - } - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { - /* NIC fires this, but we don't use it, redundant with WAKEUP */ - if (inta & CSR_INT_BIT_SCD) { - IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " - "the frame/frames.\n"); - priv->isr_stats.sch++; - } - - /* Alive notification via Rx interrupt will do the real work */ - if (inta & CSR_INT_BIT_ALIVE) { - IWL_DEBUG_ISR(priv, "Alive interrupt\n"); - priv->isr_stats.alive++; - } - } -#endif - /* Safely ignore these bits for debug checks below */ - inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); - - /* HW RF KILL switch toggled */ - if (inta & CSR_INT_BIT_RF_KILL) { - int hw_rf_kill = 0; - if (!(iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) - hw_rf_kill = 1; - - IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", - hw_rf_kill ? "disable radio" : "enable radio"); - - priv->isr_stats.rfkill++; - - /* driver only loads ucode once setting the interface up. - * the driver allows loading the ucode even if the radio - * is killed. Hence update the killswitch state here. The - * rfkill handler will care about restarting if needed. - */ - if (!test_bit(STATUS_ALIVE, &priv->status)) { - if (hw_rf_kill) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); - } - - handled |= CSR_INT_BIT_RF_KILL; - } - - /* Chip got too hot and stopped itself */ - if (inta & CSR_INT_BIT_CT_KILL) { - IWL_ERR(priv, "Microcode CT kill error detected.\n"); - priv->isr_stats.ctkill++; - handled |= CSR_INT_BIT_CT_KILL; - } - - /* Error detected by uCode */ - if (inta & CSR_INT_BIT_SW_ERR) { - IWL_ERR(priv, "Microcode SW error detected. " - " Restarting 0x%X.\n", inta); - priv->isr_stats.sw++; - iwl_irq_handle_error(priv); - handled |= CSR_INT_BIT_SW_ERR; - } - - /* uCode wakes up after power-down sleep */ - if (inta & CSR_INT_BIT_WAKEUP) { - IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); - iwl_rx_queue_update_write_ptr(priv, &priv->rxq); - for (i = 0; i < priv->hw_params.max_txq_num; i++) - iwl_txq_update_write_ptr(priv, &priv->txq[i]); - - priv->isr_stats.wakeup++; - - handled |= CSR_INT_BIT_WAKEUP; - } - - /* All uCode command responses, including Tx command responses, - * Rx "responses" (frame-received notification), and other - * notifications from uCode come through here*/ - if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX | - CSR_INT_BIT_RX_PERIODIC)) { - IWL_DEBUG_ISR(priv, "Rx interrupt\n"); - if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { - handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); - iwl_write32(priv, CSR_FH_INT_STATUS, - CSR_FH_INT_RX_MASK); - } - if (inta & CSR_INT_BIT_RX_PERIODIC) { - handled |= CSR_INT_BIT_RX_PERIODIC; - iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC); - } - /* Sending RX interrupt require many steps to be done in the - * the device: - * 1- write interrupt to current index in ICT table. - * 2- dma RX frame. - * 3- update RX shared data to indicate last write index. - * 4- send interrupt. - * This could lead to RX race, driver could receive RX interrupt - * but the shared data changes does not reflect this; - * periodic interrupt will detect any dangling Rx activity. - */ - - /* Disable periodic interrupt; we use it as just a one-shot. */ - iwl_write8(priv, CSR_INT_PERIODIC_REG, - CSR_INT_PERIODIC_DIS); - iwl_rx_handle(priv); - - /* - * Enable periodic interrupt in 8 msec only if we received - * real RX interrupt (instead of just periodic int), to catch - * any dangling Rx interrupt. If it was just the periodic - * interrupt, there was no dangling Rx activity, and no need - * to extend the periodic interrupt; one-shot is enough. - */ - if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) - iwl_write8(priv, CSR_INT_PERIODIC_REG, - CSR_INT_PERIODIC_ENA); - - priv->isr_stats.rx++; - } - - /* This "Tx" DMA channel is used only for loading uCode */ - if (inta & CSR_INT_BIT_FH_TX) { - iwl_write32(priv, CSR_FH_INT_STATUS, CSR_FH_INT_TX_MASK); - IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); - priv->isr_stats.tx++; - handled |= CSR_INT_BIT_FH_TX; - /* Wake up uCode load routine, now that load is complete */ - priv->ucode_write_complete = 1; - wake_up_interruptible(&priv->wait_command_queue); - } - - if (inta & ~handled) { - IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); - priv->isr_stats.unhandled++; - } - - if (inta & ~(priv->inta_mask)) { - IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", - inta & ~priv->inta_mask); - } - - /* Re-enable all interrupts */ - /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &priv->status)) - iwl_enable_interrupts(priv); - /* Re-enable RF_KILL if it occurred */ - else if (handled & CSR_INT_BIT_RF_KILL) - iwl_enable_rfkill_int(priv); -} - /***************************************************************************** * * sysfs attributes @@ -954,7 +577,7 @@ static struct attribute_group iwl_attribute_group = { static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc) { if (desc->v_addr) - dma_free_coherent(priv->bus.dev, desc->len, + dma_free_coherent(priv->bus->dev, desc->len, desc->v_addr, desc->p_addr); desc->v_addr = NULL; desc->len = 0; @@ -970,6 +593,7 @@ static void iwl_dealloc_ucode(struct iwl_priv *priv) { iwl_free_fw_img(priv, &priv->ucode_rt); iwl_free_fw_img(priv, &priv->ucode_init); + iwl_free_fw_img(priv, &priv->ucode_wowlan); } static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc, @@ -980,7 +604,7 @@ static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc, return -EINVAL; } - desc->v_addr = dma_alloc_coherent(priv->bus.dev, len, + desc->v_addr = dma_alloc_coherent(priv->bus->dev, len, &desc->p_addr, GFP_KERNEL); if (!desc->v_addr) return -ENOMEM; @@ -1034,13 +658,14 @@ static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) priv->firmware_name); return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, - priv->bus.dev, + priv->bus->dev, GFP_KERNEL, priv, iwl_ucode_callback); } struct iwlagn_firmware_pieces { - const void *inst, *data, *init, *init_data; - size_t inst_size, data_size, init_size, init_data_size; + const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data; + size_t inst_size, data_size, init_size, init_data_size, + wowlan_inst_size, wowlan_data_size; u32 build; @@ -1279,6 +904,14 @@ static int iwlagn_load_firmware(struct iwl_priv *priv, goto invalid_tlv_len; priv->enhance_sensitivity_table = true; break; + case IWL_UCODE_TLV_WOWLAN_INST: + pieces->wowlan_inst = tlv_data; + pieces->wowlan_inst_size = tlv_len; + break; + case IWL_UCODE_TLV_WOWLAN_DATA: + pieces->wowlan_data = tlv_data; + pieces->wowlan_data_size = tlv_len; + break; case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; @@ -1473,6 +1106,18 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) goto err_pci_alloc; } + /* WoWLAN instructions and data */ + if (pieces.wowlan_inst_size && pieces.wowlan_data_size) { + if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code, + pieces.wowlan_inst, + pieces.wowlan_inst_size)) + goto err_pci_alloc; + if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data, + pieces.wowlan_data, + pieces.wowlan_data_size)) + goto err_pci_alloc; + } + /* Now that we can no longer fail, copy information */ /* @@ -1480,20 +1125,20 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) * for each event, which is of mode 1 (including timestamp) for all * new microcodes that include this information. */ - priv->_agn.init_evtlog_ptr = pieces.init_evtlog_ptr; + priv->init_evtlog_ptr = pieces.init_evtlog_ptr; if (pieces.init_evtlog_size) - priv->_agn.init_evtlog_size = (pieces.init_evtlog_size - 16)/12; + priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; else - priv->_agn.init_evtlog_size = + priv->init_evtlog_size = priv->cfg->base_params->max_event_log_size; - priv->_agn.init_errlog_ptr = pieces.init_errlog_ptr; - priv->_agn.inst_evtlog_ptr = pieces.inst_evtlog_ptr; + priv->init_errlog_ptr = pieces.init_errlog_ptr; + priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr; if (pieces.inst_evtlog_size) - priv->_agn.inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; + priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; else - priv->_agn.inst_evtlog_size = + priv->inst_evtlog_size = priv->cfg->base_params->max_event_log_size; - priv->_agn.inst_errlog_ptr = pieces.inst_errlog_ptr; + priv->inst_errlog_ptr = pieces.inst_errlog_ptr; priv->new_scan_threshold_behaviour = !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); @@ -1519,9 +1164,9 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) ucode_capa.standard_phy_calibration_size = IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; - priv->_agn.phy_calib_chain_noise_reset_cmd = + priv->phy_calib_chain_noise_reset_cmd = ucode_capa.standard_phy_calibration_size; - priv->_agn.phy_calib_chain_noise_gain_cmd = + priv->phy_calib_chain_noise_gain_cmd = ucode_capa.standard_phy_calibration_size + 1; /************************************************** @@ -1537,7 +1182,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) if (err) IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); - err = sysfs_create_group(&(priv->bus.dev->kobj), + err = sysfs_create_group(&(priv->bus->dev->kobj), &iwl_attribute_group); if (err) { IWL_ERR(priv, "failed to create sysfs device attributes\n"); @@ -1546,7 +1191,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) /* We have our copies now, allow OS release its copies */ release_firmware(ucode_raw); - complete(&priv->_agn.firmware_loading_complete); + complete(&priv->firmware_loading_complete); return; try_again: @@ -1560,8 +1205,8 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) IWL_ERR(priv, "failed to allocate pci memory\n"); iwl_dealloc_ucode(priv); out_unbind: - complete(&priv->_agn.firmware_loading_complete); - device_release_driver(priv->bus.dev); + complete(&priv->firmware_loading_complete); + device_release_driver(priv->bus->dev); release_firmware(ucode_raw); } @@ -1642,13 +1287,13 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv) base = priv->device_pointers.error_event_table; if (priv->ucode_type == IWL_UCODE_INIT) { if (!base) - base = priv->_agn.init_errlog_ptr; + base = priv->init_errlog_ptr; } else { if (!base) - base = priv->_agn.inst_errlog_ptr; + base = priv->inst_errlog_ptr; } - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + if (!iwlagn_hw_valid_rtc_data_addr(base)) { IWL_ERR(priv, "Not valid error log pointer 0x%08X for %s uCode\n", base, @@ -1718,10 +1363,10 @@ static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, base = priv->device_pointers.log_event_table; if (priv->ucode_type == IWL_UCODE_INIT) { if (!base) - base = priv->_agn.init_evtlog_ptr; + base = priv->init_evtlog_ptr; } else { if (!base) - base = priv->_agn.inst_evtlog_ptr; + base = priv->inst_evtlog_ptr; } if (mode == 0) @@ -1830,16 +1475,16 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, base = priv->device_pointers.log_event_table; if (priv->ucode_type == IWL_UCODE_INIT) { - logsize = priv->_agn.init_evtlog_size; + logsize = priv->init_evtlog_size; if (!base) - base = priv->_agn.init_evtlog_ptr; + base = priv->init_evtlog_ptr; } else { - logsize = priv->_agn.inst_evtlog_size; + logsize = priv->inst_evtlog_size; if (!base) - base = priv->_agn.inst_evtlog_ptr; + base = priv->inst_evtlog_ptr; } - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + if (!iwlagn_hw_valid_rtc_data_addr(base)) { IWL_ERR(priv, "Invalid event log pointer 0x%08X for %s uCode\n", base, @@ -1942,7 +1587,7 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv) adv_cmd.critical_temperature_exit = cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); - ret = trans_send_cmd_pdu(priv, + ret = trans_send_cmd_pdu(&priv->trans, REPLY_CT_KILL_CONFIG_CMD, CMD_SYNC, sizeof(adv_cmd), &adv_cmd); if (ret) @@ -1958,7 +1603,7 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv) cmd.critical_temperature_R = cpu_to_le32(priv->hw_params.ct_kill_threshold); - ret = trans_send_cmd_pdu(priv, + ret = trans_send_cmd_pdu(&priv->trans, REPLY_CT_KILL_CONFIG_CMD, CMD_SYNC, sizeof(cmd), &cmd); if (ret) @@ -1984,10 +1629,29 @@ static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); } +static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) +{ + struct iwl_tx_ant_config_cmd tx_ant_cmd = { + .valid = cpu_to_le32(valid_tx_ant), + }; + + if (IWL_UCODE_API(priv->ucode_ver) > 1) { + IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); + return trans_send_cmd_pdu(&priv->trans, + TX_ANT_CONFIGURATION_CMD, + CMD_SYNC, + sizeof(struct iwl_tx_ant_config_cmd), + &tx_ant_cmd); + } else { + IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); + return -EOPNOTSUPP; + } +} + /** * iwl_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's @@ -1998,6 +1662,7 @@ int iwl_alive_start(struct iwl_priv *priv) int ret = 0; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + /*TODO: this should go to the transport layer */ iwl_reset_ict(priv); IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); @@ -2055,7 +1720,7 @@ int iwl_alive_start(struct iwl_priv *priv) /* Configure Tx antenna selection based on H/W config */ iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); - if (iwl_is_associated_ctx(ctx)) { + if (iwl_is_associated_ctx(ctx) && !priv->wowlan) { struct iwl_rxon_cmd *active_rxon = (struct iwl_rxon_cmd *)&ctx->active; /* apply any changes in staging */ @@ -2070,7 +1735,10 @@ int iwl_alive_start(struct iwl_priv *priv) iwlagn_set_rxon_chain(priv, ctx); } - iwl_reset_run_time_calib(priv); + if (!priv->wowlan) { + /* WoWLAN ucode will not reply in the same way, skip it */ + iwl_reset_run_time_calib(priv); + } set_bit(STATUS_READY, &priv->status); @@ -2137,7 +1805,7 @@ static void __iwl_down(struct iwl_priv *priv) test_bit(STATUS_EXIT_PENDING, &priv->status) << STATUS_EXIT_PENDING; - iwlagn_stop_device(priv); + trans_stop_device(&priv->trans); dev_kfree_skb(priv->beacon_skb); priv->beacon_skb = NULL; @@ -2152,55 +1820,6 @@ static void iwl_down(struct iwl_priv *priv) iwl_cancel_deferred_work(priv); } -#define HW_READY_TIMEOUT (50) - -/* Note: returns poll_bit return value, which is >= 0 if success */ -static int iwl_set_hw_ready(struct iwl_priv *priv) -{ - int ret; - - iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); - - /* See if we got it */ - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, - CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, - HW_READY_TIMEOUT); - - IWL_DEBUG_INFO(priv, "hardware%s ready\n", ret < 0 ? " not" : ""); - return ret; -} - -/* Note: returns standard 0/-ERROR code */ -int iwl_prepare_card_hw(struct iwl_priv *priv) -{ - int ret; - - IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter\n"); - - ret = iwl_set_hw_ready(priv); - if (ret >= 0) - return 0; - - /* If HW is not ready, prepare the conditions to check again */ - iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_PREPARE); - - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, - ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, - CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); - - if (ret < 0) - return ret; - - /* HW should be ready by now, check again. */ - ret = iwl_set_hw_ready(priv); - if (ret >= 0) - return 0; - return ret; -} - #define MAX_HW_RESTARTS 5 static int __iwl_up(struct iwl_priv *priv) @@ -2336,19 +1955,6 @@ static void iwl_bg_restart(struct work_struct *data) } } -static void iwl_bg_rx_replenish(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, rx_replenish); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - mutex_lock(&priv->mutex); - iwlagn_rx_replenish(priv); - mutex_unlock(&priv->mutex); -} - static int iwl_mac_offchannel_tx(struct ieee80211_hw *hw, struct sk_buff *skb, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type, @@ -2383,7 +1989,7 @@ static int iwl_mac_offchannel_tx(struct ieee80211_hw *hw, struct sk_buff *skb, /* TODO: queue up if scanning? */ if (test_bit(STATUS_SCANNING, &priv->status) || - priv->_agn.offchan_tx_skb) { + priv->offchan_tx_skb) { ret = -EBUSY; goto out; } @@ -2397,14 +2003,14 @@ static int iwl_mac_offchannel_tx(struct ieee80211_hw *hw, struct sk_buff *skb, goto out; } - priv->_agn.offchan_tx_skb = skb; - priv->_agn.offchan_tx_timeout = wait; - priv->_agn.offchan_tx_chan = chan; + priv->offchan_tx_skb = skb; + priv->offchan_tx_timeout = wait; + priv->offchan_tx_chan = chan; ret = iwl_scan_initiate(priv, priv->contexts[IWL_RXON_CTX_PAN].vif, IWL_SCAN_OFFCH_TX, chan->band); if (ret) - priv->_agn.offchan_tx_skb = NULL; + priv->offchan_tx_skb = NULL; out: mutex_unlock(&priv->mutex); free: @@ -2421,12 +2027,12 @@ static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw *hw) mutex_lock(&priv->mutex); - if (!priv->_agn.offchan_tx_skb) { + if (!priv->offchan_tx_skb) { ret = -EINVAL; goto unlock; } - priv->_agn.offchan_tx_skb = NULL; + priv->offchan_tx_skb = NULL; ret = iwl_scan_cancel_timeout(priv, 200); if (ret) @@ -2572,6 +2178,23 @@ static int iwl_mac_setup_register(struct iwl_priv *priv, WIPHY_FLAG_DISABLE_BEACON_HINTS | WIPHY_FLAG_IBSS_RSN; + if (priv->ucode_wowlan.code.len && device_can_wakeup(priv->bus->dev)) { + hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | + WIPHY_WOWLAN_DISCONNECT | + WIPHY_WOWLAN_EAP_IDENTITY_REQ | + WIPHY_WOWLAN_RFKILL_RELEASE; + if (!iwlagn_mod_params.sw_crypto) + hw->wiphy->wowlan.flags |= + WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | + WIPHY_WOWLAN_GTK_REKEY_FAILURE; + + hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; + hw->wiphy->wowlan.pattern_min_len = + IWLAGN_WOWLAN_MIN_PATTERN_LEN; + hw->wiphy->wowlan.pattern_max_len = + IWLAGN_WOWLAN_MAX_PATTERN_LEN; + } + if (iwlagn_mod_params.power_save) hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; else @@ -2656,6 +2279,471 @@ static void iwlagn_mac_stop(struct ieee80211_hw *hw) IWL_DEBUG_MAC80211(priv, "leave\n"); } +#ifdef CONFIG_PM +static int iwlagn_send_patterns(struct iwl_priv *priv, + struct cfg80211_wowlan *wowlan) +{ + struct iwlagn_wowlan_patterns_cmd *pattern_cmd; + struct iwl_host_cmd cmd = { + .id = REPLY_WOWLAN_PATTERNS, + .dataflags[0] = IWL_HCMD_DFL_NOCOPY, + .flags = CMD_SYNC, + }; + int i, err; + + if (!wowlan->n_patterns) + return 0; + + cmd.len[0] = sizeof(*pattern_cmd) + + wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern); + + pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); + if (!pattern_cmd) + return -ENOMEM; + + pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); + + for (i = 0; i < wowlan->n_patterns; i++) { + int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); + + memcpy(&pattern_cmd->patterns[i].mask, + wowlan->patterns[i].mask, mask_len); + memcpy(&pattern_cmd->patterns[i].pattern, + wowlan->patterns[i].pattern, + wowlan->patterns[i].pattern_len); + pattern_cmd->patterns[i].mask_size = mask_len; + pattern_cmd->patterns[i].pattern_size = + wowlan->patterns[i].pattern_len; + } + + cmd.data[0] = pattern_cmd; + err = trans_send_cmd(&priv->trans, &cmd); + kfree(pattern_cmd); + return err; +} +#endif + +static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_gtk_rekey_data *data) +{ + struct iwl_priv *priv = hw->priv; + + if (iwlagn_mod_params.sw_crypto) + return; + + mutex_lock(&priv->mutex); + + if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) + goto out; + + memcpy(priv->kek, data->kek, NL80211_KEK_LEN); + memcpy(priv->kck, data->kck, NL80211_KCK_LEN); + priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); + priv->have_rekey_data = true; + + out: + mutex_unlock(&priv->mutex); +} + +struct wowlan_key_data { + struct iwl_rxon_context *ctx; + struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc; + struct iwlagn_wowlan_tkip_params_cmd *tkip; + const u8 *bssid; + bool error, use_rsc_tsc, use_tkip; +}; + +#ifdef CONFIG_PM +static void iwlagn_convert_p1k(u16 *p1k, __le16 *out) +{ + int i; + + for (i = 0; i < IWLAGN_P1K_SIZE; i++) + out[i] = cpu_to_le16(p1k[i]); +} + +static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *_data) +{ + struct iwl_priv *priv = hw->priv; + struct wowlan_key_data *data = _data; + struct iwl_rxon_context *ctx = data->ctx; + struct aes_sc *aes_sc, *aes_tx_sc = NULL; + struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; + struct iwlagn_p1k_cache *rx_p1ks; + u8 *rx_mic_key; + struct ieee80211_key_seq seq; + u32 cur_rx_iv32 = 0; + u16 p1k[IWLAGN_P1K_SIZE]; + int ret, i; + + mutex_lock(&priv->mutex); + + if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || + key->cipher == WLAN_CIPHER_SUITE_WEP104) && + !sta && !ctx->key_mapping_keys) + ret = iwl_set_default_wep_key(priv, ctx, key); + else + ret = iwl_set_dynamic_key(priv, ctx, key, sta); + + if (ret) { + IWL_ERR(priv, "Error setting key during suspend!\n"); + data->error = true; + } + + switch (key->cipher) { + case WLAN_CIPHER_SUITE_TKIP: + if (sta) { + tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; + tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; + + rx_p1ks = data->tkip->rx_uni; + + ieee80211_get_key_tx_seq(key, &seq); + tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); + tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); + + ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); + iwlagn_convert_p1k(p1k, data->tkip->tx.p1k); + + memcpy(data->tkip->mic_keys.tx, + &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], + IWLAGN_MIC_KEY_SIZE); + + rx_mic_key = data->tkip->mic_keys.rx_unicast; + } else { + tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; + rx_p1ks = data->tkip->rx_multi; + rx_mic_key = data->tkip->mic_keys.rx_mcast; + } + + /* + * For non-QoS this relies on the fact that both the uCode and + * mac80211 use TID 0 (as they need to to avoid replay attacks) + * for checking the IV in the frames. + */ + for (i = 0; i < IWLAGN_NUM_RSC; i++) { + ieee80211_get_key_rx_seq(key, i, &seq); + tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); + tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); + /* wrapping isn't allowed, AP must rekey */ + if (seq.tkip.iv32 > cur_rx_iv32) + cur_rx_iv32 = seq.tkip.iv32; + } + + ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k); + iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k); + ieee80211_get_tkip_rx_p1k(key, data->bssid, + cur_rx_iv32 + 1, p1k); + iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k); + + memcpy(rx_mic_key, + &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], + IWLAGN_MIC_KEY_SIZE); + + data->use_tkip = true; + data->use_rsc_tsc = true; + break; + case WLAN_CIPHER_SUITE_CCMP: + if (sta) { + u8 *pn = seq.ccmp.pn; + + aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; + aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; + + ieee80211_get_key_tx_seq(key, &seq); + aes_tx_sc->pn = cpu_to_le64( + (u64)pn[5] | + ((u64)pn[4] << 8) | + ((u64)pn[3] << 16) | + ((u64)pn[2] << 24) | + ((u64)pn[1] << 32) | + ((u64)pn[0] << 40)); + } else + aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; + + /* + * For non-QoS this relies on the fact that both the uCode and + * mac80211 use TID 0 for checking the IV in the frames. + */ + for (i = 0; i < IWLAGN_NUM_RSC; i++) { + u8 *pn = seq.ccmp.pn; + + ieee80211_get_key_rx_seq(key, i, &seq); + aes_sc->pn = cpu_to_le64( + (u64)pn[5] | + ((u64)pn[4] << 8) | + ((u64)pn[3] << 16) | + ((u64)pn[2] << 24) | + ((u64)pn[1] << 32) | + ((u64)pn[0] << 40)); + } + data->use_rsc_tsc = true; + break; + } + + mutex_unlock(&priv->mutex); +} + +static int iwlagn_mac_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan) +{ + struct iwl_priv *priv = hw->priv; + struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd; + struct iwl_rxon_cmd rxon; + struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd; + struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {}; + struct wowlan_key_data key_data = { + .ctx = ctx, + .bssid = ctx->active.bssid_addr, + .use_rsc_tsc = false, + .tkip = &tkip_cmd, + .use_tkip = false, + }; + int ret, i; + u16 seq; + + if (WARN_ON(!wowlan)) + return -EINVAL; + + mutex_lock(&priv->mutex); + + /* Don't attempt WoWLAN when not associated, tear down instead. */ + if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || + !iwl_is_associated_ctx(ctx)) { + ret = 1; + goto out; + } + + key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); + if (!key_data.rsc_tsc) { + ret = -ENOMEM; + goto out; + } + + memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd)); + + /* + * We know the last used seqno, and the uCode expects to know that + * one, it will increment before TX. + */ + seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ; + wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq); + + /* + * For QoS counters, we store the one to use next, so subtract 0x10 + * since the uCode will add 0x10 before using the value. + */ + for (i = 0; i < 8; i++) { + seq = priv->stations[IWL_AP_ID].tid[i].seq_number; + seq -= 0x10; + wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq); + } + + if (wowlan->disconnect) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | + IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE); + if (wowlan->magic_pkt) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET); + if (wowlan->gtk_rekey_failure) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL); + if (wowlan->eap_identity_req) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ); + if (wowlan->four_way_handshake) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE); + if (wowlan->rfkill_release) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL); + if (wowlan->n_patterns) + wakeup_filter_cmd.enabled |= + cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH); + + iwl_scan_cancel_timeout(priv, 200); + + memcpy(&rxon, &ctx->active, sizeof(rxon)); + + trans_stop_device(&priv->trans); + + priv->wowlan = true; + + ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan, + IWL_UCODE_WOWLAN); + if (ret) + goto error; + + /* now configure WoWLAN ucode */ + ret = iwl_alive_start(priv); + if (ret) + goto error; + + memcpy(&ctx->staging, &rxon, sizeof(rxon)); + ret = iwlagn_commit_rxon(priv, ctx); + if (ret) + goto error; + + ret = iwl_power_update_mode(priv, true); + if (ret) + goto error; + + if (!iwlagn_mod_params.sw_crypto) { + /* mark all keys clear */ + priv->ucode_key_table = 0; + ctx->key_mapping_keys = 0; + + /* + * This needs to be unlocked due to lock ordering + * constraints. Since we're in the suspend path + * that isn't really a problem though. + */ + mutex_unlock(&priv->mutex); + ieee80211_iter_keys(priv->hw, ctx->vif, + iwlagn_wowlan_program_keys, + &key_data); + mutex_lock(&priv->mutex); + if (key_data.error) { + ret = -EIO; + goto error; + } + + if (key_data.use_rsc_tsc) { + struct iwl_host_cmd rsc_tsc_cmd = { + .id = REPLY_WOWLAN_TSC_RSC_PARAMS, + .flags = CMD_SYNC, + .data[0] = key_data.rsc_tsc, + .dataflags[0] = IWL_HCMD_DFL_NOCOPY, + .len[0] = sizeof(*key_data.rsc_tsc), + }; + + ret = trans_send_cmd(&priv->trans, &rsc_tsc_cmd); + if (ret) + goto error; + } + + if (key_data.use_tkip) { + ret = trans_send_cmd_pdu(&priv->trans, + REPLY_WOWLAN_TKIP_PARAMS, + CMD_SYNC, sizeof(tkip_cmd), + &tkip_cmd); + if (ret) + goto error; + } + + if (priv->have_rekey_data) { + memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); + memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN); + kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); + memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN); + kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); + kek_kck_cmd.replay_ctr = priv->replay_ctr; + + ret = trans_send_cmd_pdu(&priv->trans, + REPLY_WOWLAN_KEK_KCK_MATERIAL, + CMD_SYNC, sizeof(kek_kck_cmd), + &kek_kck_cmd); + if (ret) + goto error; + } + } + + ret = trans_send_cmd_pdu(&priv->trans, REPLY_WOWLAN_WAKEUP_FILTER, + CMD_SYNC, sizeof(wakeup_filter_cmd), + &wakeup_filter_cmd); + if (ret) + goto error; + + ret = iwlagn_send_patterns(priv, wowlan); + if (ret) + goto error; + + device_set_wakeup_enable(priv->bus->dev, true); + + /* Now let the ucode operate on its own */ + iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, + CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); + + goto out; + + error: + priv->wowlan = false; + iwlagn_prepare_restart(priv); + ieee80211_restart_hw(priv->hw); + out: + mutex_unlock(&priv->mutex); + kfree(key_data.rsc_tsc); + return ret; +} + +static int iwlagn_mac_resume(struct ieee80211_hw *hw) +{ + struct iwl_priv *priv = hw->priv; + struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + struct ieee80211_vif *vif; + unsigned long flags; + u32 base, status = 0xffffffff; + int ret = -EIO; + + mutex_lock(&priv->mutex); + + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); + + base = priv->device_pointers.error_event_table; + if (iwlagn_hw_valid_rtc_data_addr(base)) { + spin_lock_irqsave(&priv->reg_lock, flags); + ret = iwl_grab_nic_access_silent(priv); + if (ret == 0) { + iwl_write32(priv, HBUS_TARG_MEM_RADDR, base); + status = iwl_read32(priv, HBUS_TARG_MEM_RDAT); + iwl_release_nic_access(priv); + } + spin_unlock_irqrestore(&priv->reg_lock, flags); + +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (ret == 0) { + if (!priv->wowlan_sram) + priv->wowlan_sram = + kzalloc(priv->ucode_wowlan.data.len, + GFP_KERNEL); + + if (priv->wowlan_sram) + _iwl_read_targ_mem_words( + priv, 0x800000, priv->wowlan_sram, + priv->ucode_wowlan.data.len / 4); + } +#endif + } + + /* we'll clear ctx->vif during iwlagn_prepare_restart() */ + vif = ctx->vif; + + priv->wowlan = false; + + device_set_wakeup_enable(priv->bus->dev, false); + + iwlagn_prepare_restart(priv); + + memset((void *)&ctx->active, 0, sizeof(ctx->active)); + iwl_connection_init_rx_config(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); + + mutex_unlock(&priv->mutex); + + ieee80211_resume_disconnect(vif); + + return 1; +} +#endif + static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct iwl_priv *priv = hw->priv; @@ -2678,14 +2766,8 @@ static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, u32 iv32, u16 *phase1key) { struct iwl_priv *priv = hw->priv; - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - iwl_update_tkip_key(priv, vif_priv->ctx, keyconf, sta, - iv32, phase1key); - - IWL_DEBUG_MAC80211(priv, "leave\n"); + iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); } static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, @@ -2697,7 +2779,6 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_rxon_context *ctx = vif_priv->ctx; int ret; - u8 sta_id; bool is_default_wep_key = false; IWL_DEBUG_MAC80211(priv, "enter\n"); @@ -2708,20 +2789,27 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, } /* - * To support IBSS RSN, don't program group keys in IBSS, the - * hardware will then not attempt to decrypt the frames. + * We could program these keys into the hardware as well, but we + * don't expect much multicast traffic in IBSS and having keys + * for more stations is probably more useful. + * + * Mark key TX-only and return 0. */ if (vif->type == NL80211_IFTYPE_ADHOC && - !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) - return -EOPNOTSUPP; + !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { + key->hw_key_idx = WEP_INVALID_OFFSET; + return 0; + } - sta_id = iwl_sta_id_or_broadcast(priv, vif_priv->ctx, sta); - if (sta_id == IWL_INVALID_STATION) - return -EINVAL; + /* If they key was TX-only, accept deletion */ + if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) + return 0; mutex_lock(&priv->mutex); iwl_scan_cancel_timeout(priv, 100); + BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); + /* * If we are getting WEP group key and we didn't receive any key mapping * so far, we are in legacy wep mode (group key only), otherwise we are @@ -2729,22 +2817,30 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, * In legacy wep mode, we use another host command to the uCode. */ if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || - key->cipher == WLAN_CIPHER_SUITE_WEP104) && - !sta) { + key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { if (cmd == SET_KEY) is_default_wep_key = !ctx->key_mapping_keys; else is_default_wep_key = - (key->hw_key_idx == HW_KEY_DEFAULT); + key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; } + switch (cmd) { case SET_KEY: - if (is_default_wep_key) + if (is_default_wep_key) { ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); - else - ret = iwl_set_dynamic_key(priv, vif_priv->ctx, - key, sta_id); + break; + } + ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); + if (ret) { + /* + * can't add key for RX, but we don't need it + * in the device for TX so still return 0 + */ + ret = 0; + key->hw_key_idx = WEP_INVALID_OFFSET; + } IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); break; @@ -2752,7 +2848,7 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, if (is_default_wep_key) ret = iwl_remove_default_wep_key(priv, ctx, key); else - ret = iwl_remove_dynamic_key(priv, ctx, key, sta_id); + ret = iwl_remove_dynamic_key(priv, ctx, key, sta); IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); break; @@ -2799,18 +2895,18 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, IWL_DEBUG_HT(priv, "start Tx\n"); ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); if (ret == 0) { - priv->_agn.agg_tids_count++; - IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n", - priv->_agn.agg_tids_count); + priv->agg_tids_count++; + IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", + priv->agg_tids_count); } break; case IEEE80211_AMPDU_TX_STOP: IWL_DEBUG_HT(priv, "stop Tx\n"); ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); - if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) { - priv->_agn.agg_tids_count--; - IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n", - priv->_agn.agg_tids_count); + if ((ret == 0) && (priv->agg_tids_count > 0)) { + priv->agg_tids_count--; + IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", + priv->agg_tids_count); } if (test_bit(STATUS_EXIT_PENDING, &priv->status)) ret = 0; @@ -2828,7 +2924,8 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, case IEEE80211_AMPDU_TX_OPERATIONAL: buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); - iwlagn_txq_agg_queue_setup(priv, sta, tid, buf_size); + trans_txq_agg_setup(&priv->trans, iwl_sta_id(sta), tid, + buf_size); /* * If the limit is 0, then it wasn't initialised yet, @@ -2954,7 +3051,7 @@ static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, if (!iwl_is_associated_ctx(ctx)) goto out; - if (!priv->cfg->ops->lib->set_channel_switch) + if (!priv->cfg->lib->set_channel_switch) goto out; ch = channel->hw_value; @@ -3006,7 +3103,7 @@ static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, */ set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); priv->switch_channel = cpu_to_le16(ch); - if (priv->cfg->ops->lib->set_channel_switch(priv, ch_switch)) { + if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) { clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); priv->switch_channel = 0; ieee80211_chswitch_done(ctx->vif, false); @@ -3116,7 +3213,7 @@ static void iwlagn_disable_roc(struct iwl_priv *priv) iwl_set_rxon_channel(priv, chan, ctx); iwl_set_flags_for_band(priv, ctx, chan->band, NULL); - priv->_agn.hw_roc_channel = NULL; + priv->hw_roc_channel = NULL; iwlagn_commit_rxon(priv, ctx); @@ -3126,7 +3223,7 @@ static void iwlagn_disable_roc(struct iwl_priv *priv) static void iwlagn_bg_roc_done(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, - _agn.hw_roc_work.work); + hw_roc_work.work); mutex_lock(&priv->mutex); ieee80211_remain_on_channel_expired(priv->hw); @@ -3158,11 +3255,11 @@ static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw, } priv->contexts[IWL_RXON_CTX_PAN].is_active = true; - priv->_agn.hw_roc_channel = channel; - priv->_agn.hw_roc_chantype = channel_type; - priv->_agn.hw_roc_duration = DIV_ROUND_UP(duration * 1000, 1024); + priv->hw_roc_channel = channel; + priv->hw_roc_chantype = channel_type; + priv->hw_roc_duration = DIV_ROUND_UP(duration * 1000, 1024); iwlagn_commit_rxon(priv, &priv->contexts[IWL_RXON_CTX_PAN]); - queue_delayed_work(priv->workqueue, &priv->_agn.hw_roc_work, + queue_delayed_work(priv->workqueue, &priv->hw_roc_work, msecs_to_jiffies(duration + 20)); msleep(IWL_MIN_SLOT_TIME); /* TU is almost ms */ @@ -3181,7 +3278,7 @@ static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) return -EOPNOTSUPP; - cancel_delayed_work_sync(&priv->_agn.hw_roc_work); + cancel_delayed_work_sync(&priv->hw_roc_work); mutex_lock(&priv->mutex); iwlagn_disable_roc(priv); @@ -3203,18 +3300,17 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) init_waitqueue_head(&priv->wait_command_queue); INIT_WORK(&priv->restart, iwl_bg_restart); - INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); - INIT_DELAYED_WORK(&priv->_agn.hw_roc_work, iwlagn_bg_roc_done); + INIT_DELAYED_WORK(&priv->hw_roc_work, iwlagn_bg_roc_done); iwl_setup_scan_deferred_work(priv); - if (priv->cfg->ops->lib->setup_deferred_work) - priv->cfg->ops->lib->setup_deferred_work(priv); + if (priv->cfg->lib->bt_setup_deferred_work) + priv->cfg->lib->bt_setup_deferred_work(priv); init_timer(&priv->statistics_periodic); priv->statistics_periodic.data = (unsigned long)priv; @@ -3227,15 +3323,12 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) init_timer(&priv->watchdog); priv->watchdog.data = (unsigned long)priv; priv->watchdog.function = iwl_bg_watchdog; - - tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) - iwl_irq_tasklet, (unsigned long)priv); } static void iwl_cancel_deferred_work(struct iwl_priv *priv) { - if (priv->cfg->ops->lib->cancel_deferred_work) - priv->cfg->ops->lib->cancel_deferred_work(priv); + if (priv->cfg->lib->cancel_deferred_work) + priv->cfg->lib->cancel_deferred_work(priv); cancel_work_sync(&priv->run_time_calib_work); cancel_work_sync(&priv->beacon_update); @@ -3286,7 +3379,7 @@ static int iwl_init_drv(struct iwl_priv *priv) priv->iw_mode = NL80211_IFTYPE_STATION; priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; - priv->_agn.agg_tids_count = 0; + priv->agg_tids_count = 0; /* initialize force reset */ priv->force_reset[IWL_RF_RESET].reset_duration = @@ -3340,6 +3433,9 @@ static void iwl_uninit_drv(struct iwl_priv *priv) iwl_free_channel_map(priv); kfree(priv->scan_cmd); kfree(priv->beacon_cmd); +#ifdef CONFIG_IWLWIFI_DEBUGFS + kfree(priv->wowlan_sram); +#endif } static void iwl_mac_rssi_callback(struct ieee80211_hw *hw, @@ -3369,6 +3465,10 @@ struct ieee80211_ops iwlagn_hw_ops = { .tx = iwlagn_mac_tx, .start = iwlagn_mac_start, .stop = iwlagn_mac_stop, +#ifdef CONFIG_PM + .suspend = iwlagn_mac_suspend, + .resume = iwlagn_mac_resume, +#endif .add_interface = iwl_mac_add_interface, .remove_interface = iwl_mac_remove_interface, .change_interface = iwl_mac_change_interface, @@ -3376,6 +3476,7 @@ struct ieee80211_ops iwlagn_hw_ops = { .configure_filter = iwlagn_configure_filter, .set_key = iwlagn_mac_set_key, .update_tkip_key = iwlagn_mac_update_tkip_key, + .set_rekey_data = iwlagn_mac_set_rekey_data, .conf_tx = iwl_mac_conf_tx, .bss_info_changed = iwlagn_bss_info_changed, .ampdu_action = iwlagn_mac_ampdu_action, @@ -3415,7 +3516,7 @@ static int iwl_set_hw_params(struct iwl_priv *priv) priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE; /* Device-specific setup */ - return priv->cfg->ops->lib->set_hw_params(priv); + return priv->cfg->lib->set_hw_params(priv); } static const u8 iwlagn_bss_ac_to_fifo[] = { @@ -3521,8 +3622,7 @@ static void iwl_init_context(struct iwl_priv *priv) BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); } -int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, - struct iwl_cfg *cfg) +int iwl_probe(struct iwl_bus *bus, struct iwl_cfg *cfg) { int err = 0; struct iwl_priv *priv; @@ -3540,19 +3640,12 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, } priv = hw->priv; - - priv->bus.priv = priv; - priv->bus.bus_specific = bus_specific; - priv->bus.ops = bus_ops; - priv->bus.irq = priv->bus.ops->get_irq(&priv->bus); - priv->bus.ops->set_drv_data(&priv->bus, priv); - priv->bus.dev = priv->bus.ops->get_dev(&priv->bus); - - iwl_trans_register(&priv->trans); + priv->bus = bus; + bus_set_drv_data(priv->bus, priv); /* At this point both hw and priv are allocated. */ - SET_IEEE80211_DEV(hw, priv->bus.dev); + SET_IEEE80211_DEV(hw, priv->bus->dev); IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); priv->cfg = cfg; @@ -3571,7 +3664,6 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, if (iwl_alloc_traffic_mem(priv)) IWL_ERR(priv, "Not enough memory to generate traffic log\n"); - /* these spin locks will be used in apm_ops.init and EEPROM access * we should init now */ @@ -3592,10 +3684,14 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, IWL_INFO(priv, "Detected %s, REV=0x%X\n", priv->cfg->name, hw_rev); - if (iwl_prepare_card_hw(priv)) { + err = iwl_trans_register(&priv->trans, priv); + if (err) + goto out_free_traffic_mem; + + if (trans_prepare_card_hw(&priv->trans)) { err = -EIO; IWL_WARN(priv, "Failed, HW not ready\n"); - goto out_free_traffic_mem; + goto out_free_trans; } /***************** @@ -3605,7 +3701,7 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, err = iwl_eeprom_init(priv, hw_rev); if (err) { IWL_ERR(priv, "Unable to init EEPROM\n"); - goto out_free_traffic_mem; + goto out_free_trans; } err = iwl_eeprom_check_version(priv); if (err) @@ -3652,15 +3748,6 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, /******************** * 7. Setup services ********************/ - iwl_alloc_isr_ict(priv); - - err = request_irq(priv->bus.irq, iwl_isr_ict, IRQF_SHARED, - DRV_NAME, priv); - if (err) { - IWL_ERR(priv, "Error allocating IRQ %d\n", priv->bus.irq); - goto out_uninit_drv; - } - iwl_setup_deferred_work(priv); iwl_setup_rx_handlers(priv); iwl_testmode_init(priv); @@ -3683,7 +3770,7 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, iwl_power_initialize(priv); iwl_tt_initialize(priv); - init_completion(&priv->_agn.firmware_loading_complete); + init_completion(&priv->firmware_loading_complete); err = iwl_request_firmware(priv, true); if (err) @@ -3691,19 +3778,18 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, return 0; - out_destroy_workqueue: +out_destroy_workqueue: destroy_workqueue(priv->workqueue); priv->workqueue = NULL; - free_irq(priv->bus.irq, priv); - iwl_free_isr_ict(priv); - out_uninit_drv: iwl_uninit_drv(priv); - out_free_eeprom: +out_free_eeprom: iwl_eeprom_free(priv); - out_free_traffic_mem: +out_free_trans: + trans_free(&priv->trans); +out_free_traffic_mem: iwl_free_traffic_mem(priv); ieee80211_free_hw(priv->hw); - out: +out: return err; } @@ -3711,12 +3797,12 @@ void __devexit iwl_remove(struct iwl_priv * priv) { unsigned long flags; - wait_for_completion(&priv->_agn.firmware_loading_complete); + wait_for_completion(&priv->firmware_loading_complete); IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); iwl_dbgfs_unregister(priv); - sysfs_remove_group(&priv->bus.dev->kobj, + sysfs_remove_group(&priv->bus->dev->kobj, &iwl_attribute_group); /* ieee80211_unregister_hw call wil cause iwl_mac_stop to @@ -3745,16 +3831,15 @@ void __devexit iwl_remove(struct iwl_priv * priv) iwl_disable_interrupts(priv); spin_unlock_irqrestore(&priv->lock, flags); - iwl_synchronize_irq(priv); + trans_sync_irq(&priv->trans); iwl_dealloc_ucode(priv); - trans_rx_free(priv); - trans_tx_free(priv); + trans_rx_free(&priv->trans); + trans_tx_free(&priv->trans); iwl_eeprom_free(priv); - /*netif_stop_queue(dev); */ flush_workqueue(priv->workqueue); @@ -3765,12 +3850,11 @@ void __devexit iwl_remove(struct iwl_priv * priv) priv->workqueue = NULL; iwl_free_traffic_mem(priv); - free_irq(priv->bus.irq, priv); - priv->bus.ops->set_drv_data(&priv->bus, NULL); + trans_free(&priv->trans); - iwl_uninit_drv(priv); + bus_set_drv_data(priv->bus, NULL); - iwl_free_isr_ict(priv); + iwl_uninit_drv(priv); dev_kfree_skb(priv->beacon_skb); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h index 5f58b44bb2a0..d941c4c98e4b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn.h @@ -113,18 +113,6 @@ extern struct iwl_mod_params iwlagn_mod_params; extern struct ieee80211_ops iwlagn_hw_ops; int iwl_reset_ict(struct iwl_priv *priv); -void iwl_disable_ict(struct iwl_priv *priv); -int iwl_alloc_isr_ict(struct iwl_priv *priv); -void iwl_free_isr_ict(struct iwl_priv *priv); -irqreturn_t iwl_isr_ict(int irq, void *data); - -/* call this function to flush any scheduled tasklet */ -static inline void iwl_synchronize_irq(struct iwl_priv *priv) -{ - /* wait to make sure we flush pending tasklet*/ - synchronize_irq(priv->bus.irq); - tasklet_kill(&priv->irq_tasklet); -} static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd) { @@ -134,22 +122,12 @@ static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd) hdr->data_valid = 1; } -int iwl_prepare_card_hw(struct iwl_priv *priv); - -int iwlagn_start_device(struct iwl_priv *priv); -void iwlagn_stop_device(struct iwl_priv *priv); - /* tx queue */ -void iwlagn_set_wr_ptrs(struct iwl_priv *priv, - int txq_id, u32 index); -void iwlagn_tx_queue_set_status(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - int tx_fifo_id, int scd_retry); -void iwlagn_txq_set_sched(struct iwl_priv *priv, u32 mask); void iwl_free_tfds_in_queue(struct iwl_priv *priv, int sta_id, int tid, int freed); /* RXON */ +int iwlagn_set_pan_params(struct iwl_priv *priv); int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx); void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx); int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed); @@ -171,32 +149,24 @@ int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv, /* lib */ void iwl_check_abort_status(struct iwl_priv *priv, u8 frame_count, u32 status); -void iwlagn_rx_handler_setup(struct iwl_priv *priv); -void iwlagn_setup_deferred_work(struct iwl_priv *priv); int iwlagn_hw_valid_rtc_data_addr(u32 addr); int iwlagn_send_tx_power(struct iwl_priv *priv); void iwlagn_temperature(struct iwl_priv *priv); u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv); -int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq); -int iwlagn_hw_nic_init(struct iwl_priv *priv); int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv); int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control); void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control); +int iwlagn_send_beacon_cmd(struct iwl_priv *priv); /* rx */ -void iwlagn_rx_queue_restock(struct iwl_priv *priv); -void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority); -void iwlagn_rx_replenish(struct iwl_priv *priv); -void iwlagn_rx_replenish_now(struct iwl_priv *priv); int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); void iwl_setup_rx_handlers(struct iwl_priv *priv); +void iwl_rx_dispatch(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); + /* tx */ void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq, int index); -int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - dma_addr_t addr, u16 len, u8 reset); void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, struct ieee80211_tx_info *info); int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb); @@ -204,13 +174,11 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid, u16 *ssn); int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid); -void iwlagn_txq_agg_queue_setup(struct iwl_priv *priv, - struct ieee80211_sta *sta, - int tid, int frame_limit); int iwlagn_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id); void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); +void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); static inline u32 iwl_tx_status_to_mac80211(u32 status) @@ -246,17 +214,6 @@ void iwlagn_post_scan(struct iwl_priv *priv); int iwlagn_manage_ibss_station(struct iwl_priv *priv, struct ieee80211_vif *vif, bool add); -/* hcmd */ -int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant); -int iwlagn_send_beacon_cmd(struct iwl_priv *priv); -int iwlagn_set_pan_params(struct iwl_priv *priv); -void iwlagn_gain_computation(struct iwl_priv *priv, - u32 average_noise[NUM_RX_CHAINS], - u16 min_average_noise_antenna_i, - u32 min_average_noise, - u8 default_chain); - - /* bt coex */ void iwlagn_send_advance_bt_config(struct iwl_priv *priv); void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv, @@ -289,11 +246,13 @@ int iwl_set_default_wep_key(struct iwl_priv *priv, int iwl_restore_default_wep_keys(struct iwl_priv *priv, struct iwl_rxon_context *ctx); int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *key, u8 sta_id); + struct ieee80211_key_conf *key, + struct ieee80211_sta *sta); int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *key, u8 sta_id); + struct ieee80211_key_conf *key, + struct ieee80211_sta *sta); void iwl_update_tkip_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, + struct ieee80211_vif *vif, struct ieee80211_key_conf *keyconf, struct ieee80211_sta *sta, u32 iv32, u16 *phase1key); int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid); @@ -379,8 +338,4 @@ void iwl_testmode_cleanup(struct iwl_priv *priv) } #endif -int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, - struct iwl_cfg *cfg); -void __devexit iwl_remove(struct iwl_priv * priv); - #endif /* __iwl_agn_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.h b/drivers/net/wireless/iwlwifi/iwl-bus.h index 9396c7c8d6a4..f3ee1c0c004c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.h +++ b/drivers/net/wireless/iwlwifi/iwl-bus.h @@ -63,6 +63,76 @@ #ifndef __iwl_pci_h__ #define __iwl_pci_h__ +struct iwl_bus; + +/** + * struct iwl_bus_ops - bus specific operations + * @get_pm_support: must returns true if the bus can go to sleep + * @apm_config: will be called during the config of the APM configuration + * @set_drv_data: set the drv_data pointer to the bus layer + * @get_hw_id: prints the hw_id in the provided buffer + * @write8: write a byte to register at offset ofs + * @write32: write a dword to register at offset ofs + * @wread32: read a dword at register at offset ofs + */ +struct iwl_bus_ops { + bool (*get_pm_support)(struct iwl_bus *bus); + void (*apm_config)(struct iwl_bus *bus); + void (*set_drv_data)(struct iwl_bus *bus, void *drv_data); + void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len); + void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val); + void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val); + u32 (*read32)(struct iwl_bus *bus, u32 ofs); +}; + +struct iwl_bus { + /* Common data to all buses */ + void *drv_data; /* driver's context */ + struct device *dev; + struct iwl_bus_ops *ops; + + unsigned int irq; + + /* pointer to bus specific struct */ + /*Ensure that this pointer will always be aligned to sizeof pointer */ + char bus_specific[0] __attribute__((__aligned__(sizeof(void *)))); +}; + +static inline bool bus_get_pm_support(struct iwl_bus *bus) +{ + return bus->ops->get_pm_support(bus); +} + +static inline void bus_apm_config(struct iwl_bus *bus) +{ + bus->ops->apm_config(bus); +} + +static inline void bus_set_drv_data(struct iwl_bus *bus, void *drv_data) +{ + bus->ops->set_drv_data(bus, drv_data); +} + +static inline void bus_get_hw_id(struct iwl_bus *bus, char buf[], int buf_len) +{ + bus->ops->get_hw_id(bus, buf, buf_len); +} + +static inline void bus_write8(struct iwl_bus *bus, u32 ofs, u8 val) +{ + bus->ops->write8(bus, ofs, val); +} + +static inline void bus_write32(struct iwl_bus *bus, u32 ofs, u32 val) +{ + bus->ops->write32(bus, ofs, val); +} + +static inline u32 bus_read32(struct iwl_bus *bus, u32 ofs) +{ + return bus->ops->read32(bus, ofs); +} + int __must_check iwl_pci_register_driver(void); void iwl_pci_unregister_driver(void); diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h index ee2563777e8d..5769ca5cebca 100644 --- a/drivers/net/wireless/iwlwifi/iwl-commands.h +++ b/drivers/net/wireless/iwlwifi/iwl-commands.h @@ -188,6 +188,13 @@ enum { REPLY_WIPAN_NOA_NOTIFICATION = 0xbc, REPLY_WIPAN_DEACTIVATION_COMPLETE = 0xbd, + REPLY_WOWLAN_PATTERNS = 0xe0, + REPLY_WOWLAN_WAKEUP_FILTER = 0xe1, + REPLY_WOWLAN_TSC_RSC_PARAMS = 0xe2, + REPLY_WOWLAN_TKIP_PARAMS = 0xe3, + REPLY_WOWLAN_KEK_KCK_MATERIAL = 0xe4, + REPLY_WOWLAN_GET_STATUS = 0xe5, + REPLY_MAX = 0xff }; @@ -832,6 +839,8 @@ struct iwl_qosparam_cmd { #define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000) #define STA_KEY_MAX_NUM 8 #define STA_KEY_MAX_NUM_PAN 16 +/* must not match WEP_INVALID_OFFSET */ +#define IWLAGN_HW_KEY_DEFAULT 0xfe /* Flags indicate whether to modify vs. don't change various station params */ #define STA_MODIFY_KEY_MASK 0x01 @@ -3155,7 +3164,6 @@ struct iwl_enhance_sensitivity_cmd { /* The default calibrate table size if not specified by firmware */ #define IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18 enum { - IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7, IWL_PHY_CALIBRATE_DC_CMD = 8, IWL_PHY_CALIBRATE_LO_CMD = 9, IWL_PHY_CALIBRATE_TX_IQ_CMD = 11, @@ -3168,22 +3176,36 @@ enum { #define IWL_MAX_PHY_CALIBRATE_TBL_SIZE (253) -#define IWL_CALIB_INIT_CFG_ALL cpu_to_le32(0xffffffff) - /* This enum defines the bitmap of various calibrations to enable in both * init ucode and runtime ucode through CALIBRATION_CFG_CMD. */ enum iwl_ucode_calib_cfg { - IWL_CALIB_CFG_RX_BB_IDX, - IWL_CALIB_CFG_DC_IDX, - IWL_CALIB_CFG_TX_IQ_IDX, - IWL_CALIB_CFG_RX_IQ_IDX, - IWL_CALIB_CFG_NOISE_IDX, - IWL_CALIB_CFG_CRYSTAL_IDX, - IWL_CALIB_CFG_TEMPERATURE_IDX, - IWL_CALIB_CFG_PAPD_IDX, + IWL_CALIB_CFG_RX_BB_IDX = BIT(0), + IWL_CALIB_CFG_DC_IDX = BIT(1), + IWL_CALIB_CFG_LO_IDX = BIT(2), + IWL_CALIB_CFG_TX_IQ_IDX = BIT(3), + IWL_CALIB_CFG_RX_IQ_IDX = BIT(4), + IWL_CALIB_CFG_NOISE_IDX = BIT(5), + IWL_CALIB_CFG_CRYSTAL_IDX = BIT(6), + IWL_CALIB_CFG_TEMPERATURE_IDX = BIT(7), + IWL_CALIB_CFG_PAPD_IDX = BIT(8), + IWL_CALIB_CFG_SENSITIVITY_IDX = BIT(9), + IWL_CALIB_CFG_TX_PWR_IDX = BIT(10), }; +#define IWL_CALIB_INIT_CFG_ALL cpu_to_le32(IWL_CALIB_CFG_RX_BB_IDX | \ + IWL_CALIB_CFG_DC_IDX | \ + IWL_CALIB_CFG_LO_IDX | \ + IWL_CALIB_CFG_TX_IQ_IDX | \ + IWL_CALIB_CFG_RX_IQ_IDX | \ + IWL_CALIB_CFG_NOISE_IDX | \ + IWL_CALIB_CFG_CRYSTAL_IDX | \ + IWL_CALIB_CFG_TEMPERATURE_IDX | \ + IWL_CALIB_CFG_PAPD_IDX | \ + IWL_CALIB_CFG_SENSITIVITY_IDX | \ + IWL_CALIB_CFG_TX_PWR_IDX) + +#define IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK cpu_to_le32(BIT(0)) struct iwl_calib_cfg_elmnt_s { __le32 is_enable; @@ -3217,15 +3239,6 @@ struct iwl_calib_cmd { u8 data[0]; } __packed; -/* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ -struct iwl_calib_diff_gain_cmd { - struct iwl_calib_hdr hdr; - s8 diff_gain_a; /* see above */ - s8 diff_gain_b; - s8 diff_gain_c; - u8 reserved1; -} __packed; - struct iwl_calib_xtal_freq_cmd { struct iwl_calib_hdr hdr; u8 cap_pin1; @@ -3233,11 +3246,11 @@ struct iwl_calib_xtal_freq_cmd { u8 pad[2]; } __packed; -#define DEFAULT_RADIO_SENSOR_OFFSET 2700 +#define DEFAULT_RADIO_SENSOR_OFFSET cpu_to_le16(2700) struct iwl_calib_temperature_offset_cmd { struct iwl_calib_hdr hdr; - s16 radio_sensor_offset; - s16 reserved; + __le16 radio_sensor_offset; + __le16 reserved; } __packed; /* IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */ @@ -3758,6 +3771,127 @@ struct iwl_bt_coex_prot_env_cmd { u8 reserved[2]; } __attribute__((packed)); +/* + * REPLY_WOWLAN_PATTERNS + */ +#define IWLAGN_WOWLAN_MIN_PATTERN_LEN 16 +#define IWLAGN_WOWLAN_MAX_PATTERN_LEN 128 + +struct iwlagn_wowlan_pattern { + u8 mask[IWLAGN_WOWLAN_MAX_PATTERN_LEN / 8]; + u8 pattern[IWLAGN_WOWLAN_MAX_PATTERN_LEN]; + u8 mask_size; + u8 pattern_size; + __le16 reserved; +} __packed; + +#define IWLAGN_WOWLAN_MAX_PATTERNS 20 + +struct iwlagn_wowlan_patterns_cmd { + __le32 n_patterns; + struct iwlagn_wowlan_pattern patterns[]; +} __packed; + +/* + * REPLY_WOWLAN_WAKEUP_FILTER + */ +enum iwlagn_wowlan_wakeup_filters { + IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET = BIT(0), + IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH = BIT(1), + IWLAGN_WOWLAN_WAKEUP_BEACON_MISS = BIT(2), + IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE = BIT(3), + IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL = BIT(4), + IWLAGN_WOWLAN_WAKEUP_RFKILL = BIT(5), + IWLAGN_WOWLAN_WAKEUP_UCODE_ERROR = BIT(6), + IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ = BIT(7), + IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE = BIT(8), + IWLAGN_WOWLAN_WAKEUP_ALWAYS = BIT(9), + IWLAGN_WOWLAN_WAKEUP_ENABLE_NET_DETECT = BIT(10), +}; + +struct iwlagn_wowlan_wakeup_filter_cmd { + __le32 enabled; + __le16 non_qos_seq; + u8 min_sleep_seconds; + u8 reserved; + __le16 qos_seq[8]; +}; + +/* + * REPLY_WOWLAN_TSC_RSC_PARAMS + */ +#define IWLAGN_NUM_RSC 16 + +struct tkip_sc { + __le16 iv16; + __le16 pad; + __le32 iv32; +} __packed; + +struct iwlagn_tkip_rsc_tsc { + struct tkip_sc unicast_rsc[IWLAGN_NUM_RSC]; + struct tkip_sc multicast_rsc[IWLAGN_NUM_RSC]; + struct tkip_sc tsc; +} __packed; + +struct aes_sc { + __le64 pn; +} __packed; + +struct iwlagn_aes_rsc_tsc { + struct aes_sc unicast_rsc[IWLAGN_NUM_RSC]; + struct aes_sc multicast_rsc[IWLAGN_NUM_RSC]; + struct aes_sc tsc; +} __packed; + +union iwlagn_all_tsc_rsc { + struct iwlagn_tkip_rsc_tsc tkip; + struct iwlagn_aes_rsc_tsc aes; +}; + +struct iwlagn_wowlan_rsc_tsc_params_cmd { + union iwlagn_all_tsc_rsc all_tsc_rsc; +} __packed; + +/* + * REPLY_WOWLAN_TKIP_PARAMS + */ +#define IWLAGN_MIC_KEY_SIZE 8 +#define IWLAGN_P1K_SIZE 5 +struct iwlagn_mic_keys { + u8 tx[IWLAGN_MIC_KEY_SIZE]; + u8 rx_unicast[IWLAGN_MIC_KEY_SIZE]; + u8 rx_mcast[IWLAGN_MIC_KEY_SIZE]; +} __packed; + +struct iwlagn_p1k_cache { + __le16 p1k[IWLAGN_P1K_SIZE]; +} __packed; + +#define IWLAGN_NUM_RX_P1K_CACHE 2 + +struct iwlagn_wowlan_tkip_params_cmd { + struct iwlagn_mic_keys mic_keys; + struct iwlagn_p1k_cache tx; + struct iwlagn_p1k_cache rx_uni[IWLAGN_NUM_RX_P1K_CACHE]; + struct iwlagn_p1k_cache rx_multi[IWLAGN_NUM_RX_P1K_CACHE]; +} __packed; + +/* + * REPLY_WOWLAN_KEK_KCK_MATERIAL + */ + +#define IWLAGN_KCK_MAX_SIZE 32 +#define IWLAGN_KEK_MAX_SIZE 32 + +struct iwlagn_wowlan_kek_kck_material_cmd { + u8 kck[IWLAGN_KCK_MAX_SIZE]; + u8 kek[IWLAGN_KEK_MAX_SIZE]; + __le16 kck_len; + __le16 kek_len; + __le64 replay_ctr; +} __packed; + /****************************************************************************** * (13) * Union of all expected notifications/responses: diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index fa3d5bacbde2..cf376f62b2f6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -211,7 +211,7 @@ int iwlcore_init_geos(struct iwl_priv *priv) if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && priv->cfg->sku & EEPROM_SKU_CAP_BAND_52GHZ) { char buf[32]; - priv->bus.ops->get_hw_id(&priv->bus, buf, sizeof(buf)); + bus_get_hw_id(priv->bus, buf, sizeof(buf)); IWL_INFO(priv, "Incorrectly detected BG card as ABG. " "Please send your %s to maintainer.\n", buf); priv->cfg->sku &= ~EEPROM_SKU_CAP_BAND_52GHZ; @@ -363,6 +363,8 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx) ctx->timing.beacon_interval = cpu_to_le16(beacon_int); } + ctx->beacon_int = beacon_int; + tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ interval_tm = beacon_int * TIME_UNIT; rem = do_div(tsf, interval_tm); @@ -376,7 +378,7 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx) le32_to_cpu(ctx->timing.beacon_init_val), le16_to_cpu(ctx->timing.atim_window)); - return trans_send_cmd_pdu(priv, ctx->rxon_timing_cmd, + return trans_send_cmd_pdu(&priv->trans, ctx->rxon_timing_cmd, CMD_SYNC, sizeof(ctx->timing), &ctx->timing); } @@ -840,12 +842,12 @@ static void iwlagn_abort_notification_waits(struct iwl_priv *priv) unsigned long flags; struct iwl_notification_wait *wait_entry; - spin_lock_irqsave(&priv->_agn.notif_wait_lock, flags); - list_for_each_entry(wait_entry, &priv->_agn.notif_waits, list) + spin_lock_irqsave(&priv->notif_wait_lock, flags); + list_for_each_entry(wait_entry, &priv->notif_waits, list) wait_entry->aborted = true; - spin_unlock_irqrestore(&priv->_agn.notif_wait_lock, flags); + spin_unlock_irqrestore(&priv->notif_wait_lock, flags); - wake_up_all(&priv->_agn.notif_waitq); + wake_up_all(&priv->notif_waitq); } void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand) @@ -1012,7 +1014,7 @@ int iwl_apm_init(struct iwl_priv *priv) iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); - priv->bus.ops->apm_config(&priv->bus); + bus_apm_config(priv->bus); /* Configure analog phase-lock-loop before activating to D0A */ if (priv->cfg->base_params->pll_cfg_val) @@ -1132,7 +1134,7 @@ void iwl_send_bt_config(struct iwl_priv *priv) IWL_DEBUG_INFO(priv, "BT coex %s\n", (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); - if (trans_send_cmd_pdu(priv, REPLY_BT_CONFIG, + if (trans_send_cmd_pdu(&priv->trans, REPLY_BT_CONFIG, CMD_SYNC, sizeof(struct iwl_bt_cmd), &bt_cmd)) IWL_ERR(priv, "failed to send BT Coex Config\n"); } @@ -1145,12 +1147,12 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) }; if (flags & CMD_ASYNC) - return trans_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, + return trans_send_cmd_pdu(&priv->trans, REPLY_STATISTICS_CMD, CMD_ASYNC, sizeof(struct iwl_statistics_cmd), &statistics_cmd); else - return trans_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, + return trans_send_cmd_pdu(&priv->trans, REPLY_STATISTICS_CMD, CMD_SYNC, sizeof(struct iwl_statistics_cmd), &statistics_cmd); @@ -1903,8 +1905,12 @@ int iwl_suspend(struct iwl_priv *priv) * first but since iwl_mac_stop() has no knowledge of who the caller is, * it will not call apm_ops.stop() to stop the DMA operation. * Calling apm_ops.stop here to make sure we stop the DMA. + * + * But of course ... if we have configured WoWLAN then we did other + * things already :-) */ - iwl_apm_stop(priv); + if (!priv->wowlan) + iwl_apm_stop(priv); return 0; } diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 692c30cb2fac..3e6bb734dcb7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -83,14 +83,12 @@ struct iwl_cmd; struct iwl_lib_ops { /* set hw dependent parameters */ int (*set_hw_params)(struct iwl_priv *priv); - /* setup Rx handler */ - void (*rx_handler_setup)(struct iwl_priv *priv); - /* setup deferred work */ - void (*setup_deferred_work)(struct iwl_priv *priv); + /* setup BT Rx handler */ + void (*bt_rx_handler_setup)(struct iwl_priv *priv); + /* setup BT related deferred work */ + void (*bt_setup_deferred_work)(struct iwl_priv *priv); /* cancel deferred work */ void (*cancel_deferred_work)(struct iwl_priv *priv); - /* check validity of rtc data address */ - int (*is_valid_rtc_data_addr)(u32 addr); int (*set_channel_switch)(struct iwl_priv *priv, struct ieee80211_channel_switch *ch_switch); /* device specific configuration */ @@ -103,16 +101,6 @@ struct iwl_lib_ops { void (*temperature)(struct iwl_priv *priv); }; -/* NIC specific ops */ -struct iwl_nic_ops { - void (*additional_nic_config)(struct iwl_priv *priv); -}; - -struct iwl_ops { - const struct iwl_lib_ops *lib; - const struct iwl_nic_ops *nic; -}; - struct iwl_mod_params { int sw_crypto; /* def: 0 = using hardware encryption */ int num_of_queues; /* def: HW dependent */ @@ -199,11 +187,22 @@ struct iwl_ht_params { /** * struct iwl_cfg + * @name: Offical name of the device * @fw_name_pre: Firmware filename prefix. The api version and extension * (.ucode) will be added to filename before loading from disk. The * filename is constructed as fw_name_pre<api>.ucode. * @ucode_api_max: Highest version of uCode API supported by driver. * @ucode_api_min: Lowest version of uCode API supported by driver. + * @valid_tx_ant: valid transmit antenna + * @valid_rx_ant: valid receive antenna + * @sku: sku information from EEPROM + * @eeprom_ver: EEPROM version + * @eeprom_calib_ver: EEPROM calibration version + * @lib: pointer to the lib ops + * @additional_nic_config: additional nic configuration + * @base_params: pointer to basic parameters + * @ht_params: point to ht patameters + * @bt_params: pointer to bt parameters * @pa_type: used by 6000 series only to identify the type of Power Amplifier * @need_dc_calib: need to perform init dc calibration * @need_temp_offset_calib: need to perform temperature offset calibration @@ -213,7 +212,6 @@ struct iwl_ht_params { * @rx_with_siso_diversity: 1x1 device with rx antenna diversity * @internal_wimax_coex: internal wifi/wimax combo device * @iq_invert: I/Q inversion - * @disable_otp_refresh: disable OTP refresh current limit * * We enable the driver to be backward compatible wrt API version. The * driver specifies which APIs it supports (with @ucode_api_max being the @@ -230,11 +228,7 @@ struct iwl_ht_params { * } * * The ideal usage of this infrastructure is to treat a new ucode API - * release as a new hardware revision. That is, through utilizing the - * iwl_hcmd_utils_ops etc. we accommodate different command structures - * and flows between hardware versions (4965/5000) as well as their API - * versions. - * + * release as a new hardware revision. */ struct iwl_cfg { /* params specific to an individual device within a device family */ @@ -247,7 +241,8 @@ struct iwl_cfg { u16 sku; u16 eeprom_ver; u16 eeprom_calib_ver; - const struct iwl_ops *ops; + const struct iwl_lib_ops *lib; + void (*additional_nic_config)(struct iwl_priv *priv); /* params not likely to change within a device family */ struct iwl_base_params *base_params; /* params likely to change within a device family */ @@ -262,7 +257,6 @@ struct iwl_cfg { const bool rx_with_siso_diversity; const bool internal_wimax_coex; const bool iq_invert; - const bool disable_otp_refresh; }; /*************************** @@ -340,21 +334,8 @@ static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx, /***************************************************** * RX ******************************************************/ -void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, - struct iwl_rx_queue *q); -int iwl_rx_queue_space(const struct iwl_rx_queue *q); -void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); - void iwl_chswitch_done(struct iwl_priv *priv, bool is_success); -/* TX helpers */ - -/***************************************************** -* TX -******************************************************/ -void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq); -int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, - int count, int slots_num, u32 id); void iwl_setup_watchdog(struct iwl_priv *priv); /***************************************************** * TX power @@ -405,12 +386,6 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv, *****************************************************/ const char *get_cmd_string(u8 cmd); -int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); -int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, - u16 len, const void *data); - -int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); - void iwl_bg_watchdog(unsigned long data); u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval); __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base, @@ -421,6 +396,9 @@ int iwl_suspend(struct iwl_priv *priv); int iwl_resume(struct iwl_priv *priv); #endif /* !CONFIG_PM */ +int iwl_probe(struct iwl_bus *bus, struct iwl_cfg *cfg); +void __devexit iwl_remove(struct iwl_priv * priv); + /***************************************************** * Error Handling Debugging ******************************************************/ diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h index 5ab90ba7a024..d6dbb0423045 100644 --- a/drivers/net/wireless/iwlwifi/iwl-csr.h +++ b/drivers/net/wireless/iwlwifi/iwl-csr.h @@ -351,6 +351,7 @@ #define CSR_UCODE_SW_BIT_RFKILL (0x00000002) #define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004) #define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008) +#define CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE (0x00000020) /* GP Driver */ #define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_MSK (0x00000003) diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index eb95d1a37487..f9a407e40aff 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -32,10 +32,10 @@ struct iwl_priv; extern u32 iwl_debug_level; -#define IWL_ERR(p, f, a...) dev_err(p->bus.ops->get_dev(&p->bus), f, ## a) -#define IWL_WARN(p, f, a...) dev_warn(p->bus.ops->get_dev(&p->bus), f, ## a) -#define IWL_INFO(p, f, a...) dev_info(p->bus.ops->get_dev(&p->bus), f, ## a) -#define IWL_CRIT(p, f, a...) dev_crit(p->bus.ops->get_dev(&p->bus), f, ## a) +#define IWL_ERR(p, f, a...) dev_err(p->bus->dev, f, ## a) +#define IWL_WARN(p, f, a...) dev_warn(p->bus->dev, f, ## a) +#define IWL_INFO(p, f, a...) dev_info(p->bus->dev, f, ## a) +#define IWL_CRIT(p, f, a...) dev_crit(p->bus->dev, f, ## a) #define iwl_print_hex_error(priv, p, len) \ do { \ @@ -78,8 +78,6 @@ static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, #ifdef CONFIG_IWLWIFI_DEBUGFS int iwl_dbgfs_register(struct iwl_priv *priv, const char *name); void iwl_dbgfs_unregister(struct iwl_priv *priv); -extern int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf, - int bufsz); #else static inline int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) { diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index 6f9ebae8ca06..ec1485b2d3fe 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -322,6 +322,19 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file, return count; } +static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_priv *priv = file->private_data; + + if (!priv->wowlan_sram) + return -ENODATA; + + return simple_read_from_buffer(user_buf, count, ppos, + priv->wowlan_sram, + priv->ucode_wowlan.data.len); +} static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -856,6 +869,7 @@ static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file, } DEBUGFS_READ_WRITE_FILE_OPS(sram); +DEBUGFS_READ_FILE_OPS(wowlan_sram); DEBUGFS_READ_WRITE_FILE_OPS(log_event); DEBUGFS_READ_FILE_OPS(nvm); DEBUGFS_READ_FILE_OPS(stations); @@ -1915,121 +1929,121 @@ static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file, pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n"); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY), - priv->_agn.reply_tx_stats.pp_delay); + priv->reply_tx_stats.pp_delay); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES), - priv->_agn.reply_tx_stats.pp_few_bytes); + priv->reply_tx_stats.pp_few_bytes); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO), - priv->_agn.reply_tx_stats.pp_bt_prio); + priv->reply_tx_stats.pp_bt_prio); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD), - priv->_agn.reply_tx_stats.pp_quiet_period); + priv->reply_tx_stats.pp_quiet_period); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK), - priv->_agn.reply_tx_stats.pp_calc_ttak); + priv->reply_tx_stats.pp_calc_ttak); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_tx_fail_reason( TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY), - priv->_agn.reply_tx_stats.int_crossed_retry); + priv->reply_tx_stats.int_crossed_retry); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT), - priv->_agn.reply_tx_stats.short_limit); + priv->reply_tx_stats.short_limit); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT), - priv->_agn.reply_tx_stats.long_limit); + priv->reply_tx_stats.long_limit); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN), - priv->_agn.reply_tx_stats.fifo_underrun); + priv->reply_tx_stats.fifo_underrun); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW), - priv->_agn.reply_tx_stats.drain_flow); + priv->reply_tx_stats.drain_flow); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH), - priv->_agn.reply_tx_stats.rfkill_flush); + priv->reply_tx_stats.rfkill_flush); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE), - priv->_agn.reply_tx_stats.life_expire); + priv->reply_tx_stats.life_expire); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS), - priv->_agn.reply_tx_stats.dest_ps); + priv->reply_tx_stats.dest_ps); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED), - priv->_agn.reply_tx_stats.host_abort); + priv->reply_tx_stats.host_abort); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY), - priv->_agn.reply_tx_stats.pp_delay); + priv->reply_tx_stats.pp_delay); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID), - priv->_agn.reply_tx_stats.sta_invalid); + priv->reply_tx_stats.sta_invalid); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED), - priv->_agn.reply_tx_stats.frag_drop); + priv->reply_tx_stats.frag_drop); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE), - priv->_agn.reply_tx_stats.tid_disable); + priv->reply_tx_stats.tid_disable); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED), - priv->_agn.reply_tx_stats.fifo_flush); + priv->reply_tx_stats.fifo_flush); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_tx_fail_reason( TX_STATUS_FAIL_INSUFFICIENT_CF_POLL), - priv->_agn.reply_tx_stats.insuff_cf_poll); + priv->reply_tx_stats.insuff_cf_poll); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX), - priv->_agn.reply_tx_stats.fail_hw_drop); + priv->reply_tx_stats.fail_hw_drop); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_tx_fail_reason( TX_STATUS_FAIL_NO_BEACON_ON_RADAR), - priv->_agn.reply_tx_stats.sta_color_mismatch); + priv->reply_tx_stats.sta_color_mismatch); pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n", - priv->_agn.reply_tx_stats.unknown); + priv->reply_tx_stats.unknown); pos += scnprintf(buf + pos, bufsz - pos, "\nStatistics_Agg_TX_Error:\n"); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK), - priv->_agn.reply_agg_tx_stats.underrun); + priv->reply_agg_tx_stats.underrun); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK), - priv->_agn.reply_agg_tx_stats.bt_prio); + priv->reply_agg_tx_stats.bt_prio); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK), - priv->_agn.reply_agg_tx_stats.few_bytes); + priv->reply_agg_tx_stats.few_bytes); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK), - priv->_agn.reply_agg_tx_stats.abort); + priv->reply_agg_tx_stats.abort); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_LAST_SENT_TTL_MSK), - priv->_agn.reply_agg_tx_stats.last_sent_ttl); + priv->reply_agg_tx_stats.last_sent_ttl); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK), - priv->_agn.reply_agg_tx_stats.last_sent_try); + priv->reply_agg_tx_stats.last_sent_try); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_LAST_SENT_BT_KILL_MSK), - priv->_agn.reply_agg_tx_stats.last_sent_bt_kill); + priv->reply_agg_tx_stats.last_sent_bt_kill); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK), - priv->_agn.reply_agg_tx_stats.scd_query); + priv->reply_agg_tx_stats.scd_query); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_TEST_BAD_CRC32_MSK), - priv->_agn.reply_agg_tx_stats.bad_crc32); + priv->reply_agg_tx_stats.bad_crc32); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK), - priv->_agn.reply_agg_tx_stats.response); + priv->reply_agg_tx_stats.response); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK), - priv->_agn.reply_agg_tx_stats.dump_tx); + priv->reply_agg_tx_stats.dump_tx); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK), - priv->_agn.reply_agg_tx_stats.delay_tx); + priv->reply_agg_tx_stats.delay_tx); pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n", - priv->_agn.reply_agg_tx_stats.unknown); + priv->reply_agg_tx_stats.unknown); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); @@ -2667,6 +2681,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR); DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR); DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR); DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR); DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR); diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 424c45c43f5b..6c9790cac8d0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -48,6 +48,8 @@ #include "iwl-power.h" #include "iwl-agn-rs.h" #include "iwl-agn-tt.h" +#include "iwl-bus.h" +#include "iwl-trans.h" #define DRV_NAME "iwlagn" @@ -396,13 +398,6 @@ struct iwl_tid_data { struct iwl_ht_agg agg; }; -struct iwl_hw_key { - u32 cipher; - int keylen; - u8 keyidx; - u8 key[32]; -}; - union iwl_ht_rate_supp { u16 rates; struct { @@ -455,7 +450,6 @@ struct iwl_station_entry { struct iwl_addsta_cmd sta; struct iwl_tid_data tid[MAX_TID_COUNT]; u8 used, ctxid; - struct iwl_hw_key keyinfo; struct iwl_link_quality_cmd *lq; }; @@ -558,7 +552,8 @@ enum iwl_ucode_tlv_type { IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13, IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14, IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15, - /* 16 and 17 reserved for future use */ + IWL_UCODE_TLV_WOWLAN_INST = 16, + IWL_UCODE_TLV_WOWLAN_DATA = 17, IWL_UCODE_TLV_FLAGS = 18, }; @@ -1158,6 +1153,8 @@ struct iwl_rxon_context { __le32 station_flags; + int beacon_int; + struct { bool non_gf_sta_present; u8 protection; @@ -1193,77 +1190,6 @@ struct iwl_testmode_trace { }; #endif -struct iwl_bus; - -/** - * struct iwl_bus_ops - bus specific operations - - * @get_pm_support: must returns true if the bus can go to sleep - * @apm_config: will be called during the config of the APM configuration - * @set_drv_data: set the priv pointer to the bus layer - * @get_dev: returns the device struct - * @get_irq: returns the irq number - * @get_hw_id: prints the hw_id in the provided buffer - * @write8: write a byte to register at offset ofs - * @write32: write a dword to register at offset ofs - * @wread32: read a dword at register at offset ofs - */ -struct iwl_bus_ops { - bool (*get_pm_support)(struct iwl_bus *bus); - void (*apm_config)(struct iwl_bus *bus); - void (*set_drv_data)(struct iwl_bus *bus, void *priv); - struct device *(*get_dev)(const struct iwl_bus *bus); - unsigned int (*get_irq)(const struct iwl_bus *bus); - void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len); - void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val); - void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val); - u32 (*read32)(struct iwl_bus *bus, u32 ofs); -}; - -struct iwl_bus { - /* pointer to bus specific struct */ - void *bus_specific; - - /* Common data to all buses */ - struct iwl_priv *priv; /* driver's context */ - struct device *dev; - struct iwl_bus_ops *ops; - unsigned int irq; -}; - -struct iwl_trans; - -/** - * struct iwl_trans_ops - transport specific operations - - * @rx_init: inits the rx memory, allocate it if needed - * @rx_stop: stop the rx - * @rx_free: frees the rx memory - * @tx_init:inits the tx memory, allocate if needed - * @tx_stop: stop the tx - * @tx_free: frees the tx memory - * @send_cmd:send a host command - * @send_cmd_pdu:send a host command: flags can be CMD_* - */ -struct iwl_trans_ops { - int (*rx_init)(struct iwl_priv *priv); - int (*rx_stop)(struct iwl_priv *priv); - void (*rx_free)(struct iwl_priv *priv); - - int (*tx_init)(struct iwl_priv *priv); - int (*tx_stop)(struct iwl_priv *priv); - void (*tx_free)(struct iwl_priv *priv); - - int (*send_cmd)(struct iwl_priv *priv, struct iwl_host_cmd *cmd); - - int (*send_cmd_pdu)(struct iwl_priv *priv, u8 id, u32 flags, u16 len, - const void *data); -}; - -struct iwl_trans { - const struct iwl_trans_ops *ops; -}; - /* uCode ownership */ #define IWL_OWNERSHIP_DRIVER 0 #define IWL_OWNERSHIP_TM 1 @@ -1335,7 +1261,7 @@ struct iwl_priv { spinlock_t reg_lock; /* protect hw register access */ struct mutex mutex; - struct iwl_bus bus; /* bus specific data */ + struct iwl_bus *bus; /* bus specific data */ struct iwl_trans trans; /* microcode/device supports multiple contexts */ @@ -1362,6 +1288,7 @@ struct iwl_priv { struct fw_img ucode_rt; struct fw_img ucode_init; + struct fw_img ucode_wowlan; enum iwlagn_ucode_type ucode_type; u8 ucode_write_complete; /* the image write is complete */ @@ -1434,6 +1361,8 @@ struct iwl_priv { u8 mac80211_registered; + bool wowlan; + /* eeprom -- this is in the card's little endian byte order */ u8 *eeprom; int nvm_device_type; @@ -1469,56 +1398,54 @@ struct iwl_priv { } accum_stats, delta_stats, max_delta_stats; #endif - struct { - /* INT ICT Table */ - __le32 *ict_tbl; - void *ict_tbl_vir; - dma_addr_t ict_tbl_dma; - dma_addr_t aligned_ict_tbl_dma; - int ict_index; - u32 inta; - bool use_ict; - /* - * reporting the number of tids has AGG on. 0 means - * no AGGREGATION - */ - u8 agg_tids_count; - - struct iwl_rx_phy_res last_phy_res; - bool last_phy_res_valid; - - struct completion firmware_loading_complete; - - u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; - u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; - - /* - * chain noise reset and gain commands are the - * two extra calibration commands follows the standard - * phy calibration commands - */ - u8 phy_calib_chain_noise_reset_cmd; - u8 phy_calib_chain_noise_gain_cmd; - - /* counts reply_tx error */ - struct reply_tx_error_statistics reply_tx_stats; - struct reply_agg_tx_error_statistics reply_agg_tx_stats; - /* notification wait support */ - struct list_head notif_waits; - spinlock_t notif_wait_lock; - wait_queue_head_t notif_waitq; - - /* remain-on-channel offload support */ - struct ieee80211_channel *hw_roc_channel; - struct delayed_work hw_roc_work; - enum nl80211_channel_type hw_roc_chantype; - int hw_roc_duration; - bool hw_roc_setup; - - struct sk_buff *offchan_tx_skb; - int offchan_tx_timeout; - struct ieee80211_channel *offchan_tx_chan; - } _agn; + /* INT ICT Table */ + __le32 *ict_tbl; + void *ict_tbl_vir; + dma_addr_t ict_tbl_dma; + dma_addr_t aligned_ict_tbl_dma; + int ict_index; + u32 inta; + bool use_ict; + /* + * reporting the number of tids has AGG on. 0 means + * no AGGREGATION + */ + u8 agg_tids_count; + + struct iwl_rx_phy_res last_phy_res; + bool last_phy_res_valid; + + struct completion firmware_loading_complete; + + u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; + u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; + + /* + * chain noise reset and gain commands are the + * two extra calibration commands follows the standard + * phy calibration commands + */ + u8 phy_calib_chain_noise_reset_cmd; + u8 phy_calib_chain_noise_gain_cmd; + + /* counts reply_tx error */ + struct reply_tx_error_statistics reply_tx_stats; + struct reply_agg_tx_error_statistics reply_agg_tx_stats; + /* notification wait support */ + struct list_head notif_waits; + spinlock_t notif_wait_lock; + wait_queue_head_t notif_waitq; + + /* remain-on-channel offload support */ + struct ieee80211_channel *hw_roc_channel; + struct delayed_work hw_roc_work; + enum nl80211_channel_type hw_roc_chantype; + int hw_roc_duration; + bool hw_roc_setup; + + struct sk_buff *offchan_tx_skb; + int offchan_tx_timeout; + struct ieee80211_channel *offchan_tx_chan; /* bt coex */ u8 bt_enable_flag; @@ -1588,6 +1515,7 @@ struct iwl_priv { struct dentry *debugfs_dir; u32 dbgfs_sram_offset, dbgfs_sram_len; bool disable_ht40; + void *wowlan_sram; #endif /* CONFIG_IWLWIFI_DEBUGFS */ struct work_struct txpower_work; @@ -1605,9 +1533,14 @@ struct iwl_priv { bool led_registered; #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL struct iwl_testmode_trace testmode_trace; -#endif u32 tm_fixed_rate; +#endif + /* WoWLAN GTK rekey data */ + u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN]; + __le64 replay_ctr; + __le16 last_seq_ctl; + bool have_rekey_data; }; /*iwl_priv */ static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c index eee97bcf9802..19d31a5e32e5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c @@ -543,7 +543,7 @@ static void iwl_init_band_reference(const struct iwl_priv *priv, const struct iwl_eeprom_channel **eeprom_ch_info, const u8 **eeprom_ch_index) { - u32 offset = priv->cfg->ops->lib-> + u32 offset = priv->cfg->lib-> eeprom_ops.regulatory_bands[eep_band - 1]; switch (eep_band) { case 1: /* 2.4GHz band */ @@ -749,9 +749,9 @@ int iwl_init_channel_map(struct iwl_priv *priv) } /* Check if we do have HT40 channels */ - if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] == + if (priv->cfg->lib->eeprom_ops.regulatory_bands[5] == EEPROM_REGULATORY_BAND_NO_HT40 && - priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] == + priv->cfg->lib->eeprom_ops.regulatory_bands[6] == EEPROM_REGULATORY_BAND_NO_HT40) return 0; @@ -787,8 +787,8 @@ int iwl_init_channel_map(struct iwl_priv *priv) * driver need to process addition information * to determine the max channel tx power limits */ - if (priv->cfg->ops->lib->eeprom_ops.update_enhanced_txpower) - priv->cfg->ops->lib->eeprom_ops.update_enhanced_txpower(priv); + if (priv->cfg->lib->eeprom_ops.update_enhanced_txpower) + priv->cfg->lib->eeprom_ops.update_enhanced_txpower(priv); return 0; } diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c deleted file mode 100644 index 6cff8c165ce9..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c +++ /dev/null @@ -1,271 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <net/mac80211.h> - -#include "iwl-dev.h" /* FIXME: remove */ -#include "iwl-debug.h" -#include "iwl-eeprom.h" -#include "iwl-core.h" - - -const char *get_cmd_string(u8 cmd) -{ - switch (cmd) { - IWL_CMD(REPLY_ALIVE); - IWL_CMD(REPLY_ERROR); - IWL_CMD(REPLY_RXON); - IWL_CMD(REPLY_RXON_ASSOC); - IWL_CMD(REPLY_QOS_PARAM); - IWL_CMD(REPLY_RXON_TIMING); - IWL_CMD(REPLY_ADD_STA); - IWL_CMD(REPLY_REMOVE_STA); - IWL_CMD(REPLY_REMOVE_ALL_STA); - IWL_CMD(REPLY_TXFIFO_FLUSH); - IWL_CMD(REPLY_WEPKEY); - IWL_CMD(REPLY_TX); - IWL_CMD(REPLY_LEDS_CMD); - IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); - IWL_CMD(COEX_PRIORITY_TABLE_CMD); - IWL_CMD(COEX_MEDIUM_NOTIFICATION); - IWL_CMD(COEX_EVENT_CMD); - IWL_CMD(REPLY_QUIET_CMD); - IWL_CMD(REPLY_CHANNEL_SWITCH); - IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); - IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); - IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); - IWL_CMD(POWER_TABLE_CMD); - IWL_CMD(PM_SLEEP_NOTIFICATION); - IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); - IWL_CMD(REPLY_SCAN_CMD); - IWL_CMD(REPLY_SCAN_ABORT_CMD); - IWL_CMD(SCAN_START_NOTIFICATION); - IWL_CMD(SCAN_RESULTS_NOTIFICATION); - IWL_CMD(SCAN_COMPLETE_NOTIFICATION); - IWL_CMD(BEACON_NOTIFICATION); - IWL_CMD(REPLY_TX_BEACON); - IWL_CMD(WHO_IS_AWAKE_NOTIFICATION); - IWL_CMD(QUIET_NOTIFICATION); - IWL_CMD(REPLY_TX_PWR_TABLE_CMD); - IWL_CMD(MEASURE_ABORT_NOTIFICATION); - IWL_CMD(REPLY_BT_CONFIG); - IWL_CMD(REPLY_STATISTICS_CMD); - IWL_CMD(STATISTICS_NOTIFICATION); - IWL_CMD(REPLY_CARD_STATE_CMD); - IWL_CMD(CARD_STATE_NOTIFICATION); - IWL_CMD(MISSED_BEACONS_NOTIFICATION); - IWL_CMD(REPLY_CT_KILL_CONFIG_CMD); - IWL_CMD(SENSITIVITY_CMD); - IWL_CMD(REPLY_PHY_CALIBRATION_CMD); - IWL_CMD(REPLY_RX_PHY_CMD); - IWL_CMD(REPLY_RX_MPDU_CMD); - IWL_CMD(REPLY_RX); - IWL_CMD(REPLY_COMPRESSED_BA); - IWL_CMD(CALIBRATION_CFG_CMD); - IWL_CMD(CALIBRATION_RES_NOTIFICATION); - IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION); - IWL_CMD(REPLY_TX_POWER_DBM_CMD); - IWL_CMD(TEMPERATURE_NOTIFICATION); - IWL_CMD(TX_ANT_CONFIGURATION_CMD); - IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF); - IWL_CMD(REPLY_BT_COEX_PRIO_TABLE); - IWL_CMD(REPLY_BT_COEX_PROT_ENV); - IWL_CMD(REPLY_WIPAN_PARAMS); - IWL_CMD(REPLY_WIPAN_RXON); - IWL_CMD(REPLY_WIPAN_RXON_TIMING); - IWL_CMD(REPLY_WIPAN_RXON_ASSOC); - IWL_CMD(REPLY_WIPAN_QOS_PARAM); - IWL_CMD(REPLY_WIPAN_WEPKEY); - IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH); - IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION); - IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE); - default: - return "UNKNOWN"; - - } -} - -#define HOST_COMPLETE_TIMEOUT (2 * HZ) - -static void iwl_generic_cmd_callback(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt) -{ - if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERR(priv, "Bad return from %s (0x%08X)\n", - get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); - return; - } - -#ifdef CONFIG_IWLWIFI_DEBUG - switch (cmd->hdr.cmd) { - case REPLY_TX_LINK_QUALITY_CMD: - case SENSITIVITY_CMD: - IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n", - get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); - break; - default: - IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n", - get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); - } -#endif -} - -static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - int ret; - - /* An asynchronous command can not expect an SKB to be set. */ - if (WARN_ON(cmd->flags & CMD_WANT_SKB)) - return -EINVAL; - - /* Assign a generic callback if one is not provided */ - if (!cmd->callback) - cmd->callback = iwl_generic_cmd_callback; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return -EBUSY; - - ret = iwl_enqueue_hcmd(priv, cmd); - if (ret < 0) { - IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n", - get_cmd_string(cmd->id), ret); - return ret; - } - return 0; -} - -static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - int cmd_idx; - int ret; - - lockdep_assert_held(&priv->mutex); - - /* A synchronous command can not have a callback set. */ - if (WARN_ON(cmd->callback)) - return -EINVAL; - - IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n", - get_cmd_string(cmd->id)); - - set_bit(STATUS_HCMD_ACTIVE, &priv->status); - IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n", - get_cmd_string(cmd->id)); - - cmd_idx = iwl_enqueue_hcmd(priv, cmd); - if (cmd_idx < 0) { - ret = cmd_idx; - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n", - get_cmd_string(cmd->id), ret); - return ret; - } - - ret = wait_event_interruptible_timeout(priv->wait_command_queue, - !test_bit(STATUS_HCMD_ACTIVE, &priv->status), - HOST_COMPLETE_TIMEOUT); - if (!ret) { - if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { - IWL_ERR(priv, - "Error sending %s: time out after %dms.\n", - get_cmd_string(cmd->id), - jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); - - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n", - get_cmd_string(cmd->id)); - ret = -ETIMEDOUT; - goto cancel; - } - } - - if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { - IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n", - get_cmd_string(cmd->id)); - ret = -ECANCELED; - goto fail; - } - if (test_bit(STATUS_FW_ERROR, &priv->status)) { - IWL_ERR(priv, "Command %s failed: FW Error\n", - get_cmd_string(cmd->id)); - ret = -EIO; - goto fail; - } - if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) { - IWL_ERR(priv, "Error: Response NULL in '%s'\n", - get_cmd_string(cmd->id)); - ret = -EIO; - goto cancel; - } - - return 0; - -cancel: - if (cmd->flags & CMD_WANT_SKB) { - /* - * Cancel the CMD_WANT_SKB flag for the cmd in the - * TX cmd queue. Otherwise in case the cmd comes - * in later, it will possibly set an invalid - * address (cmd->meta.source). - */ - priv->txq[priv->cmd_queue].meta[cmd_idx].flags &= - ~CMD_WANT_SKB; - } -fail: - if (cmd->reply_page) { - iwl_free_pages(priv, cmd->reply_page); - cmd->reply_page = 0; - } - - return ret; -} - -int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - if (cmd->flags & CMD_ASYNC) - return iwl_send_cmd_async(priv, cmd); - - return iwl_send_cmd_sync(priv, cmd); -} - -int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len, - const void *data) -{ - struct iwl_host_cmd cmd = { - .id = id, - .len = { len, }, - .data = { data, }, - .flags = flags, - }; - - return iwl_send_cmd(priv, &cmd); -} diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h index c56eae74c3cd..19a093101122 100644 --- a/drivers/net/wireless/iwlwifi/iwl-io.h +++ b/drivers/net/wireless/iwlwifi/iwl-io.h @@ -34,22 +34,23 @@ #include "iwl-dev.h" #include "iwl-debug.h" #include "iwl-devtrace.h" +#include "iwl-bus.h" static inline void iwl_write8(struct iwl_priv *priv, u32 ofs, u8 val) { trace_iwlwifi_dev_iowrite8(priv, ofs, val); - priv->bus.ops->write8(&priv->bus, ofs, val); + bus_write8(priv->bus, ofs, val); } static inline void iwl_write32(struct iwl_priv *priv, u32 ofs, u32 val) { trace_iwlwifi_dev_iowrite32(priv, ofs, val); - priv->bus.ops->write32(&priv->bus, ofs, val); + bus_write32(priv->bus, ofs, val); } static inline u32 iwl_read32(struct iwl_priv *priv, u32 ofs) { - u32 val = priv->bus.ops->read32(&priv->bus, ofs); + u32 val = bus_read32(priv->bus, ofs); trace_iwlwifi_dev_ioread32(priv, ofs, val); return val; } diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c index 60e4169f25e1..a67ae56d5464 100644 --- a/drivers/net/wireless/iwlwifi/iwl-led.c +++ b/drivers/net/wireless/iwlwifi/iwl-led.c @@ -112,7 +112,7 @@ static int iwl_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd) if (reg != (reg & CSR_LED_BSM_CTRL_MSK)) iwl_write32(priv, CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK); - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); } /* Set led pattern command */ @@ -203,7 +203,7 @@ void iwl_leds_init(struct iwl_priv *priv) break; } - ret = led_classdev_register(priv->bus.dev, + ret = led_classdev_register(priv->bus->dev, &priv->led); if (ret) { kfree(priv->led.name); diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index 74911348a2ee..fb7e436b40c7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -63,11 +63,10 @@ #include <linux/pci.h> #include <linux/pci-aspm.h> -#include "iwl-pci.h" +#include "iwl-bus.h" #include "iwl-agn.h" #include "iwl-core.h" #include "iwl-io.h" -#include "iwl-trans.h" /* PCI registers */ #define PCI_CFG_RETRY_TIMEOUT 0x041 @@ -121,30 +120,20 @@ static void iwl_pci_apm_config(struct iwl_bus *bus) if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN) { /* L1-ASPM enabled; disable(!) L0S */ - iwl_set_bit(bus->priv, CSR_GIO_REG, + iwl_set_bit(bus->drv_data, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); - IWL_DEBUG_POWER(bus->priv, "L1 Enabled; Disabling L0S\n"); + dev_printk(KERN_INFO, bus->dev, "L1 Enabled; Disabling L0S\n"); } else { /* L1-ASPM disabled; enable(!) L0S */ - iwl_clear_bit(bus->priv, CSR_GIO_REG, + iwl_clear_bit(bus->drv_data, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); - IWL_DEBUG_POWER(bus->priv, "L1 Disabled; Enabling L0S\n"); + dev_printk(KERN_INFO, bus->dev, "L1 Disabled; Enabling L0S\n"); } } -static void iwl_pci_set_drv_data(struct iwl_bus *bus, void *drv_priv) +static void iwl_pci_set_drv_data(struct iwl_bus *bus, void *drv_data) { - pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), drv_priv); -} - -static struct device *iwl_pci_get_dev(const struct iwl_bus *bus) -{ - return &(IWL_BUS_GET_PCI_DEV(bus)->dev); -} - -static unsigned int iwl_pci_get_irq(const struct iwl_bus *bus) -{ - return IWL_BUS_GET_PCI_DEV(bus)->irq; + bus->drv_data = drv_data; } static void iwl_pci_get_hw_id(struct iwl_bus *bus, char buf[], @@ -176,8 +165,6 @@ static struct iwl_bus_ops pci_ops = { .get_pm_support = iwl_pci_is_pm_supported, .apm_config = iwl_pci_apm_config, .set_drv_data = iwl_pci_set_drv_data, - .get_dev = iwl_pci_get_dev, - .get_irq = iwl_pci_get_irq, .get_hw_id = iwl_pci_get_hw_id, .write8 = iwl_pci_write8, .write32 = iwl_pci_write32, @@ -383,18 +370,21 @@ MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); - struct iwl_pci_bus *bus; + struct iwl_bus *bus; + struct iwl_pci_bus *pci_bus; u16 pci_cmd; int err; - bus = kzalloc(sizeof(*bus), GFP_KERNEL); + bus = kzalloc(sizeof(*bus) + sizeof(*pci_bus), GFP_KERNEL); if (!bus) { - pr_err("Couldn't allocate iwl_pci_bus"); + dev_printk(KERN_ERR, &pdev->dev, + "Couldn't allocate iwl_pci_bus"); err = -ENOMEM; goto out_no_pci; } - bus->pci_dev = pdev; + pci_bus = IWL_BUS_GET_PCI_BUS(bus); + pci_bus->pci_dev = pdev; /* W/A - seems to solve weird behavior. We need to remove this if we * don't want to stay in L1 all the time. This wastes a lot of power */ @@ -418,29 +408,33 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) DMA_BIT_MASK(32)); /* both attempts failed: */ if (err) { - pr_err("No suitable DMA available.\n"); + dev_printk(KERN_ERR, bus->dev, + "No suitable DMA available.\n"); goto out_pci_disable_device; } } err = pci_request_regions(pdev, DRV_NAME); if (err) { - pr_err("pci_request_regions failed"); + dev_printk(KERN_ERR, bus->dev, "pci_request_regions failed"); goto out_pci_disable_device; } - bus->hw_base = pci_iomap(pdev, 0, 0); - if (!bus->hw_base) { - pr_err("pci_iomap failed"); + pci_bus->hw_base = pci_iomap(pdev, 0, 0); + if (!pci_bus->hw_base) { + dev_printk(KERN_ERR, bus->dev, "pci_iomap failed"); err = -ENODEV; goto out_pci_release_regions; } - pr_info("pci_resource_len = 0x%08llx\n", + dev_printk(KERN_INFO, &pdev->dev, + "pci_resource_len = 0x%08llx\n", (unsigned long long) pci_resource_len(pdev, 0)); - pr_info("pci_resource_base = %p\n", bus->hw_base); + dev_printk(KERN_INFO, &pdev->dev, + "pci_resource_base = %p\n", pci_bus->hw_base); - pr_info("HW Revision ID = 0x%X\n", pdev->revision); + dev_printk(KERN_INFO, &pdev->dev, + "HW Revision ID = 0x%X\n", pdev->revision); /* We disable the RETRY_TIMEOUT register (0x41) to keep * PCI Tx retries from interfering with C3 CPU state */ @@ -448,7 +442,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = pci_enable_msi(pdev); if (err) { - pr_err("pci_enable_msi failed"); + dev_printk(KERN_ERR, &pdev->dev, "pci_enable_msi failed"); goto out_iounmap; } @@ -460,7 +454,13 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); } - err = iwl_probe((void *) bus, &pci_ops, cfg); + pci_set_drvdata(pdev, bus); + + bus->dev = &pdev->dev; + bus->irq = pdev->irq; + bus->ops = &pci_ops; + + err = iwl_probe(bus, cfg); if (err) goto out_disable_msi; return 0; @@ -468,7 +468,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) out_disable_msi: pci_disable_msi(pdev); out_iounmap: - pci_iounmap(pdev, bus->hw_base); + pci_iounmap(pdev, pci_bus->hw_base); out_pci_release_regions: pci_set_drvdata(pdev, NULL); pci_release_regions(pdev); @@ -479,9 +479,9 @@ out_no_pci: return err; } -static void iwl_pci_down(void *bus) +static void iwl_pci_down(struct iwl_bus *bus) { - struct iwl_pci_bus *pci_bus = (struct iwl_pci_bus *) bus; + struct iwl_pci_bus *pci_bus = (struct iwl_pci_bus *) bus->bus_specific; pci_disable_msi(pci_bus->pci_dev); pci_iounmap(pci_bus->pci_dev, pci_bus->hw_base); @@ -489,17 +489,16 @@ static void iwl_pci_down(void *bus) pci_disable_device(pci_bus->pci_dev); pci_set_drvdata(pci_bus->pci_dev, NULL); - kfree(pci_bus); + kfree(bus); } static void __devexit iwl_pci_remove(struct pci_dev *pdev) { - struct iwl_priv *priv = pci_get_drvdata(pdev); - void *bus_specific = priv->bus.bus_specific; + struct iwl_bus *bus = pci_get_drvdata(pdev); - iwl_remove(priv); + iwl_remove(bus->drv_data); - iwl_pci_down(bus_specific); + iwl_pci_down(bus); } #ifdef CONFIG_PM @@ -507,15 +506,25 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev) static int iwl_pci_suspend(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); - struct iwl_priv *priv = pci_get_drvdata(pdev); + struct iwl_bus *bus = pci_get_drvdata(pdev); + + /* Before you put code here, think about WoWLAN. You cannot check here + * whether WoWLAN is enabled or not, and your code will run even if + * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx. + */ - return iwl_suspend(priv); + return iwl_suspend(bus->drv_data); } static int iwl_pci_resume(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); - struct iwl_priv *priv = pci_get_drvdata(pdev); + struct iwl_bus *bus = pci_get_drvdata(pdev); + + /* Before you put code here, think about WoWLAN. You cannot check here + * whether WoWLAN is enabled or not, and your code will run even if + * WoWLAN is enabled - the NIC may be alive. + */ /* * We disable the RETRY_TIMEOUT register (0x41) to keep @@ -523,7 +532,7 @@ static int iwl_pci_resume(struct device *device) */ pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); - return iwl_resume(priv); + return iwl_resume(bus->drv_data); } static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume); diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c index 64ff40ae1026..3ec619c6881c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-power.c +++ b/drivers/net/wireless/iwlwifi/iwl-power.c @@ -335,7 +335,7 @@ static int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd) le32_to_cpu(cmd->sleep_interval[3]), le32_to_cpu(cmd->sleep_interval[4])); - return trans_send_cmd_pdu(priv, POWER_TABLE_CMD, CMD_SYNC, + return trans_send_cmd_pdu(&priv->trans, POWER_TABLE_CMD, CMD_SYNC, sizeof(struct iwl_powertable_cmd), cmd); } @@ -347,7 +347,9 @@ static void iwl_power_build_cmd(struct iwl_priv *priv, dtimper = priv->hw->conf.ps_dtim_period ?: 1; - if (priv->hw->conf.flags & IEEE80211_CONF_IDLE) + if (priv->wowlan) + iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, dtimper); + else if (priv->hw->conf.flags & IEEE80211_CONF_IDLE) iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20); else if (iwl_tt_is_low_power_state(priv)) { /* in thermal throttling low power state */ @@ -432,7 +434,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force) /* initialize to default */ void iwl_power_initialize(struct iwl_priv *priv) { - priv->power_data.bus_pm = priv->bus.ops->get_pm_support(&priv->bus); + priv->power_data.bus_pm = bus_get_pm_support(priv->bus); priv->power_data.debug_sleep_level_override = -1; diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index 1cc0ed1f488c..2f267b8aabbb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -178,61 +178,61 @@ #define SCD_WIN_SIZE 64 #define SCD_FRAME_LIMIT 64 -#define IWL_SCD_TXFIFO_POS_TID (0) -#define IWL_SCD_TXFIFO_POS_RA (4) -#define IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF) +#define SCD_TXFIFO_POS_TID (0) +#define SCD_TXFIFO_POS_RA (4) +#define SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF) /* agn SCD */ -#define IWLAGN_SCD_QUEUE_STTS_REG_POS_TXF (0) -#define IWLAGN_SCD_QUEUE_STTS_REG_POS_ACTIVE (3) -#define IWLAGN_SCD_QUEUE_STTS_REG_POS_WSL (4) -#define IWLAGN_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (19) -#define IWLAGN_SCD_QUEUE_STTS_REG_MSK (0x00FF0000) - -#define IWLAGN_SCD_QUEUE_CTX_REG1_CREDIT_POS (8) -#define IWLAGN_SCD_QUEUE_CTX_REG1_CREDIT_MSK (0x00FFFF00) -#define IWLAGN_SCD_QUEUE_CTX_REG1_SUPER_CREDIT_POS (24) -#define IWLAGN_SCD_QUEUE_CTX_REG1_SUPER_CREDIT_MSK (0xFF000000) -#define IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS (0) -#define IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK (0x0000007F) -#define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) -#define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) +#define SCD_QUEUE_STTS_REG_POS_TXF (0) +#define SCD_QUEUE_STTS_REG_POS_ACTIVE (3) +#define SCD_QUEUE_STTS_REG_POS_WSL (4) +#define SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (19) +#define SCD_QUEUE_STTS_REG_MSK (0x00FF0000) + +#define SCD_QUEUE_CTX_REG1_CREDIT_POS (8) +#define SCD_QUEUE_CTX_REG1_CREDIT_MSK (0x00FFFF00) +#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_POS (24) +#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_MSK (0xFF000000) +#define SCD_QUEUE_CTX_REG2_WIN_SIZE_POS (0) +#define SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK (0x0000007F) +#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) +#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) /* Context Data */ -#define IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600) -#define IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) +#define SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600) +#define SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) /* Tx status */ -#define IWLAGN_SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) -#define IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) +#define SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) +#define SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) /* Translation Data */ -#define IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) -#define IWLAGN_SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808) +#define SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) +#define SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808) -#define IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(x)\ - (IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8)) +#define SCD_CONTEXT_QUEUE_OFFSET(x)\ + (SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8)) -#define IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ - ((IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc) +#define SCD_TRANS_TBL_OFFSET_QUEUE(x) \ + ((SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc) -#define IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv) \ +#define SCD_QUEUECHAIN_SEL_ALL(priv) \ (((1<<(priv)->hw_params.max_txq_num) - 1) &\ (~(1<<(priv)->cmd_queue))) -#define IWLAGN_SCD_BASE (PRPH_BASE + 0xa02c00) - -#define IWLAGN_SCD_SRAM_BASE_ADDR (IWLAGN_SCD_BASE + 0x0) -#define IWLAGN_SCD_DRAM_BASE_ADDR (IWLAGN_SCD_BASE + 0x8) -#define IWLAGN_SCD_AIT (IWLAGN_SCD_BASE + 0x0c) -#define IWLAGN_SCD_TXFACT (IWLAGN_SCD_BASE + 0x10) -#define IWLAGN_SCD_ACTIVE (IWLAGN_SCD_BASE + 0x14) -#define IWLAGN_SCD_QUEUE_WRPTR(x) (IWLAGN_SCD_BASE + 0x18 + (x) * 4) -#define IWLAGN_SCD_QUEUE_RDPTR(x) (IWLAGN_SCD_BASE + 0x68 + (x) * 4) -#define IWLAGN_SCD_QUEUECHAIN_SEL (IWLAGN_SCD_BASE + 0xe8) -#define IWLAGN_SCD_AGGR_SEL (IWLAGN_SCD_BASE + 0x248) -#define IWLAGN_SCD_INTERRUPT_MASK (IWLAGN_SCD_BASE + 0x108) -#define IWLAGN_SCD_QUEUE_STATUS_BITS(x) (IWLAGN_SCD_BASE + 0x10c + (x) * 4) +#define SCD_BASE (PRPH_BASE + 0xa02c00) + +#define SCD_SRAM_BASE_ADDR (SCD_BASE + 0x0) +#define SCD_DRAM_BASE_ADDR (SCD_BASE + 0x8) +#define SCD_AIT (SCD_BASE + 0x0c) +#define SCD_TXFACT (SCD_BASE + 0x10) +#define SCD_ACTIVE (SCD_BASE + 0x14) +#define SCD_QUEUE_WRPTR(x) (SCD_BASE + 0x18 + (x) * 4) +#define SCD_QUEUE_RDPTR(x) (SCD_BASE + 0x68 + (x) * 4) +#define SCD_QUEUECHAIN_SEL (SCD_BASE + 0xe8) +#define SCD_AGGR_SEL (SCD_BASE + 0x248) +#define SCD_INTERRUPT_MASK (SCD_BASE + 0x108) +#define SCD_QUEUE_STATUS_BITS(x) (SCD_BASE + 0x10c + (x) * 4) /*********************** END TX SCHEDULER *************************************/ diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index f3f3efe38ce2..8e314003b63a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -41,142 +41,6 @@ #include "iwl-agn-calib.h" #include "iwl-agn.h" -/****************************************************************************** - * - * RX path functions - * - ******************************************************************************/ - -/* - * Rx theory of operation - * - * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs), - * each of which point to Receive Buffers to be filled by the NIC. These get - * used not only for Rx frames, but for any command response or notification - * from the NIC. The driver and NIC manage the Rx buffers by means - * of indexes into the circular buffer. - * - * Rx Queue Indexes - * The host/firmware share two index registers for managing the Rx buffers. - * - * The READ index maps to the first position that the firmware may be writing - * to -- the driver can read up to (but not including) this position and get - * good data. - * The READ index is managed by the firmware once the card is enabled. - * - * The WRITE index maps to the last position the driver has read from -- the - * position preceding WRITE is the last slot the firmware can place a packet. - * - * The queue is empty (no good data) if WRITE = READ - 1, and is full if - * WRITE = READ. - * - * During initialization, the host sets up the READ queue position to the first - * INDEX position, and WRITE to the last (READ - 1 wrapped) - * - * When the firmware places a packet in a buffer, it will advance the READ index - * and fire the RX interrupt. The driver can then query the READ index and - * process as many packets as possible, moving the WRITE index forward as it - * resets the Rx queue buffers with new memory. - * - * The management in the driver is as follows: - * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When - * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled - * to replenish the iwl->rxq->rx_free. - * + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the - * iwl->rxq is replenished and the READ INDEX is updated (updating the - * 'processed' and 'read' driver indexes as well) - * + A received packet is processed and handed to the kernel network stack, - * detached from the iwl->rxq. The driver 'processed' index is updated. - * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free - * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ - * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there - * were enough free buffers and RX_STALLED is set it is cleared. - * - * - * Driver sequence: - * - * iwl_rx_queue_alloc() Allocates rx_free - * iwl_rx_replenish() Replenishes rx_free list from rx_used, and calls - * iwl_rx_queue_restock - * iwl_rx_queue_restock() Moves available buffers from rx_free into Rx - * queue, updates firmware pointers, and updates - * the WRITE index. If insufficient rx_free buffers - * are available, schedules iwl_rx_replenish - * - * -- enable interrupts -- - * ISR - iwl_rx() Detach iwl_rx_mem_buffers from pool up to the - * READ INDEX, detaching the SKB from the pool. - * Moves the packet buffer from queue to rx_used. - * Calls iwl_rx_queue_restock to refill any empty - * slots. - * ... - * - */ - -/** - * iwl_rx_queue_space - Return number of free slots available in queue. - */ -int iwl_rx_queue_space(const struct iwl_rx_queue *q) -{ - int s = q->read - q->write; - if (s <= 0) - s += RX_QUEUE_SIZE; - /* keep some buffer to not confuse full and empty queue */ - s -= 2; - if (s < 0) - s = 0; - return s; -} - -/** - * iwl_rx_queue_update_write_ptr - Update the write pointer for the RX queue - */ -void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q) -{ - unsigned long flags; - u32 reg; - - spin_lock_irqsave(&q->lock, flags); - - if (q->need_update == 0) - goto exit_unlock; - - if (priv->cfg->base_params->shadow_reg_enable) { - /* shadow register enabled */ - /* Device expects a multiple of 8 */ - q->write_actual = (q->write & ~0x7); - iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); - } else { - /* If power-saving is in use, make sure device is awake */ - if (test_bit(STATUS_POWER_PMI, &priv->status)) { - reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); - - if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(priv, - "Rx queue requesting wakeup," - " GP1 = 0x%x\n", reg); - iwl_set_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - goto exit_unlock; - } - - q->write_actual = (q->write & ~0x7); - iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, - q->write_actual); - - /* Else device is assumed to be awake */ - } else { - /* Device expects a multiple of 8 */ - q->write_actual = (q->write & ~0x7); - iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, - q->write_actual); - } - } - q->need_update = 0; - - exit_unlock: - spin_unlock_irqrestore(&q->lock, flags); -} /****************************************************************************** * @@ -306,7 +170,7 @@ static bool iwl_good_ack_health(struct iwl_priv *priv, int actual_delta, expected_delta, ba_timeout_delta; struct statistics_tx *old; - if (priv->_agn.agg_tids_count) + if (priv->agg_tids_count) return true; old = &priv->statistics.tx; @@ -624,8 +488,8 @@ static void iwl_rx_statistics(struct iwl_priv *priv, iwl_rx_calc_noise(priv); queue_work(priv->workqueue, &priv->run_time_calib_work); } - if (priv->cfg->ops->lib->temperature && change) - priv->cfg->ops->lib->temperature(priv); + if (priv->cfg->lib->temperature && change) + priv->cfg->lib->temperature(priv); } static void iwl_rx_reply_statistics(struct iwl_priv *priv, @@ -728,8 +592,8 @@ static void iwl_rx_reply_rx_phy(struct iwl_priv *priv, { struct iwl_rx_packet *pkt = rxb_addr(rxb); - priv->_agn.last_phy_res_valid = true; - memcpy(&priv->_agn.last_phy_res, pkt->u.raw, + priv->last_phy_res_valid = true; + memcpy(&priv->last_phy_res, pkt->u.raw, sizeof(struct iwl_rx_phy_res)); } @@ -977,11 +841,11 @@ static void iwl_rx_reply_rx(struct iwl_priv *priv, phy_res->cfg_phy_cnt + len); ampdu_status = le32_to_cpu(rx_pkt_status); } else { - if (!priv->_agn.last_phy_res_valid) { + if (!priv->last_phy_res_valid) { IWL_ERR(priv, "MPDU frame without cached PHY data\n"); return; } - phy_res = &priv->_agn.last_phy_res; + phy_res = &priv->last_phy_res; amsdu = (struct iwl_rx_mpdu_res_start *)pkt->u.raw; header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu)); len = le16_to_cpu(amsdu->byte_count); @@ -1102,6 +966,64 @@ void iwl_setup_rx_handlers(struct iwl_priv *priv) /* block ack */ handlers[REPLY_COMPRESSED_BA] = iwlagn_rx_reply_compressed_ba; - /* Set up hardware specific Rx handlers */ - priv->cfg->ops->lib->rx_handler_setup(priv); + /* init calibration handlers */ + priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] = + iwlagn_rx_calib_result; + priv->rx_handlers[REPLY_TX] = iwlagn_rx_reply_tx; + + /* set up notification wait support */ + spin_lock_init(&priv->notif_wait_lock); + INIT_LIST_HEAD(&priv->notif_waits); + init_waitqueue_head(&priv->notif_waitq); + + /* Set up BT Rx handlers */ + if (priv->cfg->lib->bt_rx_handler_setup) + priv->cfg->lib->bt_rx_handler_setup(priv); + +} + +void iwl_rx_dispatch(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + + /* + * Do the notification wait before RX handlers so + * even if the RX handler consumes the RXB we have + * access to it in the notification wait entry. + */ + if (!list_empty(&priv->notif_waits)) { + struct iwl_notification_wait *w; + + spin_lock(&priv->notif_wait_lock); + list_for_each_entry(w, &priv->notif_waits, list) { + if (w->cmd != pkt->hdr.cmd) + continue; + IWL_DEBUG_RX(priv, + "Notif: %s, 0x%02x - wake the callers up\n", + get_cmd_string(pkt->hdr.cmd), + pkt->hdr.cmd); + w->triggered = true; + if (w->fn) + w->fn(priv, pkt, w->fn_data); + } + spin_unlock(&priv->notif_wait_lock); + + wake_up_all(&priv->notif_waitq); + } + + if (priv->pre_rx_handler) + priv->pre_rx_handler(priv, rxb); + + /* Based on type of command response or notification, + * handle those that need handling via function in + * rx_handlers table. See iwl_setup_rx_handlers() */ + if (priv->rx_handlers[pkt->hdr.cmd]) { + priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; + priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); + } else { + /* No handling needed */ + IWL_DEBUG_RX(priv, + "No handler needed for %s, 0x%02x\n", + get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); + } } diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index f6ebe29eb790..dd6937e97055 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -75,7 +75,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv) test_bit(STATUS_EXIT_PENDING, &priv->status)) return -EIO; - ret = trans_send_cmd(priv, &cmd); + ret = trans_send_cmd(&priv->trans, &cmd); if (ret) return ret; @@ -565,10 +565,10 @@ static void iwl_bg_scan_completed(struct work_struct *work) goto out_settings; } - if (priv->scan_type == IWL_SCAN_OFFCH_TX && priv->_agn.offchan_tx_skb) { + if (priv->scan_type == IWL_SCAN_OFFCH_TX && priv->offchan_tx_skb) { ieee80211_tx_status_irqsafe(priv->hw, - priv->_agn.offchan_tx_skb); - priv->_agn.offchan_tx_skb = NULL; + priv->offchan_tx_skb); + priv->offchan_tx_skb = NULL; } if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) { diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 65386e575b1c..1ef3b7106ad5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -168,7 +168,7 @@ int iwl_send_add_sta(struct iwl_priv *priv, } cmd.len[0] = iwlagn_build_addsta_hcmd(sta, data); - ret = trans_send_cmd(priv, &cmd); + ret = trans_send_cmd(&priv->trans, &cmd); if (ret || (flags & CMD_ASYNC)) return ret; @@ -424,7 +424,7 @@ static int iwl_send_remove_station(struct iwl_priv *priv, cmd.flags |= CMD_WANT_SKB; - ret = trans_send_cmd(priv, &cmd); + ret = trans_send_cmd(&priv->trans, &cmd); if (ret) return ret; @@ -669,7 +669,7 @@ void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx) iwl_send_lq_cmd(priv, ctx, &lq, CMD_SYNC, true); } -int iwl_get_free_ucode_key_index(struct iwl_priv *priv) +int iwl_get_free_ucode_key_offset(struct iwl_priv *priv) { int i; @@ -793,7 +793,7 @@ int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, return -EINVAL; if (is_lq_table_valid(priv, ctx, lq)) - ret = trans_send_cmd(priv, &cmd); + ret = trans_send_cmd(&priv->trans, &cmd); else ret = -EINVAL; diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h index ff64027ff4cb..9a6768d66851 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.h +++ b/drivers/net/wireless/iwlwifi/iwl-sta.h @@ -31,9 +31,6 @@ #include "iwl-dev.h" -#define HW_KEY_DYNAMIC 0 -#define HW_KEY_DEFAULT 1 - #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ #define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of @@ -47,7 +44,7 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx); void iwl_clear_ucode_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx); void iwl_dealloc_bcast_stations(struct iwl_priv *priv); -int iwl_get_free_ucode_key_index(struct iwl_priv *priv); +int iwl_get_free_ucode_key_offset(struct iwl_priv *priv); int iwl_send_add_sta(struct iwl_priv *priv, struct iwl_addsta_cmd *sta, u8 flags); int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, diff --git a/drivers/net/wireless/iwlwifi/iwl-sv-open.c b/drivers/net/wireless/iwlwifi/iwl-sv-open.c index 77ed1c295da4..b11f60de4f1e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sv-open.c +++ b/drivers/net/wireless/iwlwifi/iwl-sv-open.c @@ -181,12 +181,10 @@ void iwl_testmode_init(struct iwl_priv *priv) static void iwl_trace_cleanup(struct iwl_priv *priv) { - struct device *dev = priv->bus.dev; - if (priv->testmode_trace.trace_enabled) { if (priv->testmode_trace.cpu_addr && priv->testmode_trace.dma_addr) - dma_free_coherent(dev, + dma_free_coherent(priv->bus->dev, priv->testmode_trace.total_size, priv->testmode_trace.cpu_addr, priv->testmode_trace.dma_addr); @@ -241,7 +239,7 @@ static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb) IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x," " len %d\n", cmd.id, cmd.flags, cmd.len[0]); /* ok, let's submit the command to ucode */ - return trans_send_cmd(priv, &cmd); + return trans_send_cmd(&priv->trans, &cmd); } @@ -407,7 +405,7 @@ static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: iwl_testmode_cfg_init_calib(priv); - iwlagn_stop_device(priv); + trans_stop_device(&priv->trans); break; case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: @@ -486,7 +484,7 @@ static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) struct iwl_priv *priv = hw->priv; struct sk_buff *skb; int status = 0; - struct device *dev = priv->bus.dev; + struct device *dev = priv->bus->dev; switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h new file mode 100644 index 000000000000..b79330d84185 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h @@ -0,0 +1,82 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ +#ifndef __iwl_trans_int_pcie_h__ +#define __iwl_trans_int_pcie_h__ + +/*This file includes the declaration that are internal to the + * trans_pcie layer */ + +/***************************************************** +* RX +******************************************************/ +void iwl_bg_rx_replenish(struct work_struct *data); +void iwl_irq_tasklet(struct iwl_priv *priv); +void iwlagn_rx_replenish(struct iwl_priv *priv); +void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, + struct iwl_rx_queue *q); + +/***************************************************** +* ICT +******************************************************/ +int iwl_reset_ict(struct iwl_priv *priv); +void iwl_disable_ict(struct iwl_priv *priv); +int iwl_alloc_isr_ict(struct iwl_priv *priv); +void iwl_free_isr_ict(struct iwl_priv *priv); +irqreturn_t iwl_isr_ict(int irq, void *data); + + +/***************************************************** +* TX / HCMD +******************************************************/ +void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq); +void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq, + int index); +int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv, + struct iwl_tx_queue *txq, + dma_addr_t addr, u16 len, u8 reset); +int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, + int count, int slots_num, u32 id); +int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); +int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, + u16 len, const void *data); +void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); +void iwl_trans_txq_update_byte_cnt_tbl(struct iwl_priv *priv, + struct iwl_tx_queue *txq, + u16 byte_cnt); +int iwl_trans_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, + u16 ssn_idx, u8 tx_fifo); +void iwl_trans_set_wr_ptrs(struct iwl_priv *priv, + int txq_id, u32 index); +void iwl_trans_tx_queue_set_status(struct iwl_priv *priv, + struct iwl_tx_queue *txq, + int tx_fifo_id, int scd_retry); +void iwl_trans_txq_agg_setup(struct iwl_priv *priv, int sta_id, int tid, + int frame_limit); + +#endif /* __iwl_trans_int_pcie_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c new file mode 100644 index 000000000000..474860290404 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c @@ -0,0 +1,979 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ +#include <linux/sched.h> +#include <linux/wait.h> +#include <linux/gfp.h> + +#include "iwl-dev.h" +#include "iwl-agn.h" +#include "iwl-core.h" +#include "iwl-io.h" +#include "iwl-helpers.h" +#include "iwl-trans-int-pcie.h" + +/****************************************************************************** + * + * RX path functions + * + ******************************************************************************/ + +/* + * Rx theory of operation + * + * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs), + * each of which point to Receive Buffers to be filled by the NIC. These get + * used not only for Rx frames, but for any command response or notification + * from the NIC. The driver and NIC manage the Rx buffers by means + * of indexes into the circular buffer. + * + * Rx Queue Indexes + * The host/firmware share two index registers for managing the Rx buffers. + * + * The READ index maps to the first position that the firmware may be writing + * to -- the driver can read up to (but not including) this position and get + * good data. + * The READ index is managed by the firmware once the card is enabled. + * + * The WRITE index maps to the last position the driver has read from -- the + * position preceding WRITE is the last slot the firmware can place a packet. + * + * The queue is empty (no good data) if WRITE = READ - 1, and is full if + * WRITE = READ. + * + * During initialization, the host sets up the READ queue position to the first + * INDEX position, and WRITE to the last (READ - 1 wrapped) + * + * When the firmware places a packet in a buffer, it will advance the READ index + * and fire the RX interrupt. The driver can then query the READ index and + * process as many packets as possible, moving the WRITE index forward as it + * resets the Rx queue buffers with new memory. + * + * The management in the driver is as follows: + * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When + * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled + * to replenish the iwl->rxq->rx_free. + * + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the + * iwl->rxq is replenished and the READ INDEX is updated (updating the + * 'processed' and 'read' driver indexes as well) + * + A received packet is processed and handed to the kernel network stack, + * detached from the iwl->rxq. The driver 'processed' index is updated. + * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free + * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ + * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there + * were enough free buffers and RX_STALLED is set it is cleared. + * + * + * Driver sequence: + * + * iwl_rx_queue_alloc() Allocates rx_free + * iwl_rx_replenish() Replenishes rx_free list from rx_used, and calls + * iwl_rx_queue_restock + * iwl_rx_queue_restock() Moves available buffers from rx_free into Rx + * queue, updates firmware pointers, and updates + * the WRITE index. If insufficient rx_free buffers + * are available, schedules iwl_rx_replenish + * + * -- enable interrupts -- + * ISR - iwl_rx() Detach iwl_rx_mem_buffers from pool up to the + * READ INDEX, detaching the SKB from the pool. + * Moves the packet buffer from queue to rx_used. + * Calls iwl_rx_queue_restock to refill any empty + * slots. + * ... + * + */ + +/** + * iwl_rx_queue_space - Return number of free slots available in queue. + */ +static int iwl_rx_queue_space(const struct iwl_rx_queue *q) +{ + int s = q->read - q->write; + if (s <= 0) + s += RX_QUEUE_SIZE; + /* keep some buffer to not confuse full and empty queue */ + s -= 2; + if (s < 0) + s = 0; + return s; +} + +/** + * iwl_rx_queue_update_write_ptr - Update the write pointer for the RX queue + */ +void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, + struct iwl_rx_queue *q) +{ + unsigned long flags; + u32 reg; + + spin_lock_irqsave(&q->lock, flags); + + if (q->need_update == 0) + goto exit_unlock; + + if (priv->cfg->base_params->shadow_reg_enable) { + /* shadow register enabled */ + /* Device expects a multiple of 8 */ + q->write_actual = (q->write & ~0x7); + iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); + } else { + /* If power-saving is in use, make sure device is awake */ + if (test_bit(STATUS_POWER_PMI, &priv->status)) { + reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); + + if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { + IWL_DEBUG_INFO(priv, + "Rx queue requesting wakeup," + " GP1 = 0x%x\n", reg); + iwl_set_bit(priv, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + goto exit_unlock; + } + + q->write_actual = (q->write & ~0x7); + iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, + q->write_actual); + + /* Else device is assumed to be awake */ + } else { + /* Device expects a multiple of 8 */ + q->write_actual = (q->write & ~0x7); + iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, + q->write_actual); + } + } + q->need_update = 0; + + exit_unlock: + spin_unlock_irqrestore(&q->lock, flags); +} + +/** + * iwlagn_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr + */ +static inline __le32 iwlagn_dma_addr2rbd_ptr(struct iwl_priv *priv, + dma_addr_t dma_addr) +{ + return cpu_to_le32((u32)(dma_addr >> 8)); +} + +/** + * iwlagn_rx_queue_restock - refill RX queue from pre-allocated pool + * + * If there are slots in the RX queue that need to be restocked, + * and we have free pre-allocated buffers, fill the ranks as much + * as we can, pulling from rx_free. + * + * This moves the 'write' index forward to catch up with 'processed', and + * also updates the memory address in the firmware to reference the new + * target buffer. + */ +static void iwlagn_rx_queue_restock(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + struct list_head *element; + struct iwl_rx_mem_buffer *rxb; + unsigned long flags; + + spin_lock_irqsave(&rxq->lock, flags); + while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) { + /* The overwritten rxb must be a used one */ + rxb = rxq->queue[rxq->write]; + BUG_ON(rxb && rxb->page); + + /* Get next free Rx buffer, remove from free list */ + element = rxq->rx_free.next; + rxb = list_entry(element, struct iwl_rx_mem_buffer, list); + list_del(element); + + /* Point to Rx buffer via next RBD in circular buffer */ + rxq->bd[rxq->write] = iwlagn_dma_addr2rbd_ptr(priv, + rxb->page_dma); + rxq->queue[rxq->write] = rxb; + rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; + rxq->free_count--; + } + spin_unlock_irqrestore(&rxq->lock, flags); + /* If the pre-allocated buffer pool is dropping low, schedule to + * refill it */ + if (rxq->free_count <= RX_LOW_WATERMARK) + queue_work(priv->workqueue, &priv->rx_replenish); + + + /* If we've added more space for the firmware to place data, tell it. + * Increment device's write pointer in multiples of 8. */ + if (rxq->write_actual != (rxq->write & ~0x7)) { + spin_lock_irqsave(&rxq->lock, flags); + rxq->need_update = 1; + spin_unlock_irqrestore(&rxq->lock, flags); + iwl_rx_queue_update_write_ptr(priv, rxq); + } +} + +/** + * iwlagn_rx_replenish - Move all used packet from rx_used to rx_free + * + * When moving to rx_free an SKB is allocated for the slot. + * + * Also restock the Rx queue via iwl_rx_queue_restock. + * This is called as a scheduled work item (except for during initialization) + */ +static void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + struct list_head *element; + struct iwl_rx_mem_buffer *rxb; + struct page *page; + unsigned long flags; + gfp_t gfp_mask = priority; + + while (1) { + spin_lock_irqsave(&rxq->lock, flags); + if (list_empty(&rxq->rx_used)) { + spin_unlock_irqrestore(&rxq->lock, flags); + return; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + if (rxq->free_count > RX_LOW_WATERMARK) + gfp_mask |= __GFP_NOWARN; + + if (priv->hw_params.rx_page_order > 0) + gfp_mask |= __GFP_COMP; + + /* Alloc a new receive buffer */ + page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order); + if (!page) { + if (net_ratelimit()) + IWL_DEBUG_INFO(priv, "alloc_pages failed, " + "order: %d\n", + priv->hw_params.rx_page_order); + + if ((rxq->free_count <= RX_LOW_WATERMARK) && + net_ratelimit()) + IWL_CRIT(priv, "Failed to alloc_pages with %s." + "Only %u free buffers remaining.\n", + priority == GFP_ATOMIC ? + "GFP_ATOMIC" : "GFP_KERNEL", + rxq->free_count); + /* We don't reschedule replenish work here -- we will + * call the restock method and if it still needs + * more buffers it will schedule replenish */ + return; + } + + spin_lock_irqsave(&rxq->lock, flags); + + if (list_empty(&rxq->rx_used)) { + spin_unlock_irqrestore(&rxq->lock, flags); + __free_pages(page, priv->hw_params.rx_page_order); + return; + } + element = rxq->rx_used.next; + rxb = list_entry(element, struct iwl_rx_mem_buffer, list); + list_del(element); + + spin_unlock_irqrestore(&rxq->lock, flags); + + BUG_ON(rxb->page); + rxb->page = page; + /* Get physical address of the RB */ + rxb->page_dma = dma_map_page(priv->bus->dev, page, 0, + PAGE_SIZE << priv->hw_params.rx_page_order, + DMA_FROM_DEVICE); + /* dma address must be no more than 36 bits */ + BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36)); + /* and also 256 byte aligned! */ + BUG_ON(rxb->page_dma & DMA_BIT_MASK(8)); + + spin_lock_irqsave(&rxq->lock, flags); + + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + + spin_unlock_irqrestore(&rxq->lock, flags); + } +} + +void iwlagn_rx_replenish(struct iwl_priv *priv) +{ + unsigned long flags; + + iwlagn_rx_allocate(priv, GFP_KERNEL); + + spin_lock_irqsave(&priv->lock, flags); + iwlagn_rx_queue_restock(priv); + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void iwlagn_rx_replenish_now(struct iwl_priv *priv) +{ + iwlagn_rx_allocate(priv, GFP_ATOMIC); + + iwlagn_rx_queue_restock(priv); +} + +void iwl_bg_rx_replenish(struct work_struct *data) +{ + struct iwl_priv *priv = + container_of(data, struct iwl_priv, rx_replenish); + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + mutex_lock(&priv->mutex); + iwlagn_rx_replenish(priv); + mutex_unlock(&priv->mutex); +} + +/** + * iwl_rx_handle - Main entry function for receiving responses from uCode + * + * Uses the priv->rx_handlers callback function array to invoke + * the appropriate handlers, including command responses, + * frame-received notifications, and other notifications. + */ +static void iwl_rx_handle(struct iwl_priv *priv) +{ + struct iwl_rx_mem_buffer *rxb; + struct iwl_rx_packet *pkt; + struct iwl_rx_queue *rxq = &priv->rxq; + u32 r, i; + int reclaim; + unsigned long flags; + u8 fill_rx = 0; + u32 count = 8; + int total_empty; + + /* uCode's read index (stored in shared DRAM) indicates the last Rx + * buffer that the driver may process (last buffer filled by ucode). */ + r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; + i = rxq->read; + + /* Rx interrupt, but nothing sent from uCode */ + if (i == r) + IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); + + /* calculate total frames need to be restock after handling RX */ + total_empty = r - rxq->write_actual; + if (total_empty < 0) + total_empty += RX_QUEUE_SIZE; + + if (total_empty > (RX_QUEUE_SIZE / 2)) + fill_rx = 1; + + while (i != r) { + int len; + + rxb = rxq->queue[i]; + + /* If an RXB doesn't have a Rx queue slot associated with it, + * then a bug has been introduced in the queue refilling + * routines -- catch it here */ + if (WARN_ON(rxb == NULL)) { + i = (i + 1) & RX_QUEUE_MASK; + continue; + } + + rxq->queue[i] = NULL; + + dma_unmap_page(priv->bus->dev, rxb->page_dma, + PAGE_SIZE << priv->hw_params.rx_page_order, + DMA_FROM_DEVICE); + pkt = rxb_addr(rxb); + + IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, + i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); + + len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; + len += sizeof(u32); /* account for status word */ + trace_iwlwifi_dev_rx(priv, pkt, len); + + /* Reclaim a command buffer only if this packet is a response + * to a (driver-originated) command. + * If the packet (e.g. Rx frame) originated from uCode, + * there is no command buffer to reclaim. + * Ucode should set SEQ_RX_FRAME bit if ucode-originated, + * but apparently a few don't get set; catch them here. */ + reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && + (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && + (pkt->hdr.cmd != REPLY_RX) && + (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && + (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && + (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && + (pkt->hdr.cmd != REPLY_TX); + + iwl_rx_dispatch(priv, rxb); + + /* + * XXX: After here, we should always check rxb->page + * against NULL before touching it or its virtual + * memory (pkt). Because some rx_handler might have + * already taken or freed the pages. + */ + + if (reclaim) { + /* Invoke any callbacks, transfer the buffer to caller, + * and fire off the (possibly) blocking + * trans_send_cmd() + * as we reclaim the driver command queue */ + if (rxb->page) + iwl_tx_cmd_complete(priv, rxb); + else + IWL_WARN(priv, "Claim null rxb?\n"); + } + + /* Reuse the page if possible. For notification packets and + * SKBs that fail to Rx correctly, add them back into the + * rx_free list for reuse later. */ + spin_lock_irqsave(&rxq->lock, flags); + if (rxb->page != NULL) { + rxb->page_dma = dma_map_page(priv->bus->dev, rxb->page, + 0, PAGE_SIZE << priv->hw_params.rx_page_order, + DMA_FROM_DEVICE); + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } else + list_add_tail(&rxb->list, &rxq->rx_used); + + spin_unlock_irqrestore(&rxq->lock, flags); + + i = (i + 1) & RX_QUEUE_MASK; + /* If there are a lot of unused frames, + * restock the Rx queue so ucode wont assert. */ + if (fill_rx) { + count++; + if (count >= 8) { + rxq->read = i; + iwlagn_rx_replenish_now(priv); + count = 0; + } + } + } + + /* Backtrack one entry */ + rxq->read = i; + if (fill_rx) + iwlagn_rx_replenish_now(priv); + else + iwlagn_rx_queue_restock(priv); +} + +/* tasklet for iwlagn interrupt */ +void iwl_irq_tasklet(struct iwl_priv *priv) +{ + u32 inta = 0; + u32 handled = 0; + unsigned long flags; + u32 i; +#ifdef CONFIG_IWLWIFI_DEBUG + u32 inta_mask; +#endif + + spin_lock_irqsave(&priv->lock, flags); + + /* Ack/clear/reset pending uCode interrupts. + * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, + */ + /* There is a hardware bug in the interrupt mask function that some + * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if + * they are disabled in the CSR_INT_MASK register. Furthermore the + * ICT interrupt handling mechanism has another bug that might cause + * these unmasked interrupts fail to be detected. We workaround the + * hardware bugs here by ACKing all the possible interrupts so that + * interrupt coalescing can still be achieved. + */ + iwl_write32(priv, CSR_INT, priv->inta | ~priv->inta_mask); + + inta = priv->inta; + +#ifdef CONFIG_IWLWIFI_DEBUG + if (iwl_get_debug_level(priv) & IWL_DL_ISR) { + /* just for debug */ + inta_mask = iwl_read32(priv, CSR_INT_MASK); + IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ", + inta, inta_mask); + } +#endif + + spin_unlock_irqrestore(&priv->lock, flags); + + /* saved interrupt in inta variable now we can reset priv->inta */ + priv->inta = 0; + + /* Now service all interrupt bits discovered above. */ + if (inta & CSR_INT_BIT_HW_ERR) { + IWL_ERR(priv, "Hardware error detected. Restarting.\n"); + + /* Tell the device to stop sending interrupts */ + iwl_disable_interrupts(priv); + + priv->isr_stats.hw++; + iwl_irq_handle_error(priv); + + handled |= CSR_INT_BIT_HW_ERR; + + return; + } + +#ifdef CONFIG_IWLWIFI_DEBUG + if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { + /* NIC fires this, but we don't use it, redundant with WAKEUP */ + if (inta & CSR_INT_BIT_SCD) { + IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " + "the frame/frames.\n"); + priv->isr_stats.sch++; + } + + /* Alive notification via Rx interrupt will do the real work */ + if (inta & CSR_INT_BIT_ALIVE) { + IWL_DEBUG_ISR(priv, "Alive interrupt\n"); + priv->isr_stats.alive++; + } + } +#endif + /* Safely ignore these bits for debug checks below */ + inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); + + /* HW RF KILL switch toggled */ + if (inta & CSR_INT_BIT_RF_KILL) { + int hw_rf_kill = 0; + if (!(iwl_read32(priv, CSR_GP_CNTRL) & + CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) + hw_rf_kill = 1; + + IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", + hw_rf_kill ? "disable radio" : "enable radio"); + + priv->isr_stats.rfkill++; + + /* driver only loads ucode once setting the interface up. + * the driver allows loading the ucode even if the radio + * is killed. Hence update the killswitch state here. The + * rfkill handler will care about restarting if needed. + */ + if (!test_bit(STATUS_ALIVE, &priv->status)) { + if (hw_rf_kill) + set_bit(STATUS_RF_KILL_HW, &priv->status); + else + clear_bit(STATUS_RF_KILL_HW, &priv->status); + wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); + } + + handled |= CSR_INT_BIT_RF_KILL; + } + + /* Chip got too hot and stopped itself */ + if (inta & CSR_INT_BIT_CT_KILL) { + IWL_ERR(priv, "Microcode CT kill error detected.\n"); + priv->isr_stats.ctkill++; + handled |= CSR_INT_BIT_CT_KILL; + } + + /* Error detected by uCode */ + if (inta & CSR_INT_BIT_SW_ERR) { + IWL_ERR(priv, "Microcode SW error detected. " + " Restarting 0x%X.\n", inta); + priv->isr_stats.sw++; + iwl_irq_handle_error(priv); + handled |= CSR_INT_BIT_SW_ERR; + } + + /* uCode wakes up after power-down sleep */ + if (inta & CSR_INT_BIT_WAKEUP) { + IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); + iwl_rx_queue_update_write_ptr(priv, &priv->rxq); + for (i = 0; i < priv->hw_params.max_txq_num; i++) + iwl_txq_update_write_ptr(priv, &priv->txq[i]); + + priv->isr_stats.wakeup++; + + handled |= CSR_INT_BIT_WAKEUP; + } + + /* All uCode command responses, including Tx command responses, + * Rx "responses" (frame-received notification), and other + * notifications from uCode come through here*/ + if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX | + CSR_INT_BIT_RX_PERIODIC)) { + IWL_DEBUG_ISR(priv, "Rx interrupt\n"); + if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { + handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); + iwl_write32(priv, CSR_FH_INT_STATUS, + CSR_FH_INT_RX_MASK); + } + if (inta & CSR_INT_BIT_RX_PERIODIC) { + handled |= CSR_INT_BIT_RX_PERIODIC; + iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC); + } + /* Sending RX interrupt require many steps to be done in the + * the device: + * 1- write interrupt to current index in ICT table. + * 2- dma RX frame. + * 3- update RX shared data to indicate last write index. + * 4- send interrupt. + * This could lead to RX race, driver could receive RX interrupt + * but the shared data changes does not reflect this; + * periodic interrupt will detect any dangling Rx activity. + */ + + /* Disable periodic interrupt; we use it as just a one-shot. */ + iwl_write8(priv, CSR_INT_PERIODIC_REG, + CSR_INT_PERIODIC_DIS); + iwl_rx_handle(priv); + + /* + * Enable periodic interrupt in 8 msec only if we received + * real RX interrupt (instead of just periodic int), to catch + * any dangling Rx interrupt. If it was just the periodic + * interrupt, there was no dangling Rx activity, and no need + * to extend the periodic interrupt; one-shot is enough. + */ + if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) + iwl_write8(priv, CSR_INT_PERIODIC_REG, + CSR_INT_PERIODIC_ENA); + + priv->isr_stats.rx++; + } + + /* This "Tx" DMA channel is used only for loading uCode */ + if (inta & CSR_INT_BIT_FH_TX) { + iwl_write32(priv, CSR_FH_INT_STATUS, CSR_FH_INT_TX_MASK); + IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); + priv->isr_stats.tx++; + handled |= CSR_INT_BIT_FH_TX; + /* Wake up uCode load routine, now that load is complete */ + priv->ucode_write_complete = 1; + wake_up_interruptible(&priv->wait_command_queue); + } + + if (inta & ~handled) { + IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); + priv->isr_stats.unhandled++; + } + + if (inta & ~(priv->inta_mask)) { + IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", + inta & ~priv->inta_mask); + } + + /* Re-enable all interrupts */ + /* only Re-enable if disabled by irq */ + if (test_bit(STATUS_INT_ENABLED, &priv->status)) + iwl_enable_interrupts(priv); + /* Re-enable RF_KILL if it occurred */ + else if (handled & CSR_INT_BIT_RF_KILL) + iwl_enable_rfkill_int(priv); +} + +/****************************************************************************** + * + * ICT functions + * + ******************************************************************************/ +#define ICT_COUNT (PAGE_SIZE/sizeof(u32)) + +/* Free dram table */ +void iwl_free_isr_ict(struct iwl_priv *priv) +{ + if (priv->ict_tbl_vir) { + dma_free_coherent(priv->bus->dev, + (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, + priv->ict_tbl_vir, + priv->ict_tbl_dma); + priv->ict_tbl_vir = NULL; + memset(&priv->ict_tbl_dma, 0, + sizeof(priv->ict_tbl_dma)); + memset(&priv->aligned_ict_tbl_dma, 0, + sizeof(priv->aligned_ict_tbl_dma)); + } +} + + +/* allocate dram shared table it is a PAGE_SIZE aligned + * also reset all data related to ICT table interrupt. + */ +int iwl_alloc_isr_ict(struct iwl_priv *priv) +{ + + /* allocate shrared data table */ + priv->ict_tbl_vir = + dma_alloc_coherent(priv->bus->dev, + (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, + &priv->ict_tbl_dma, GFP_KERNEL); + if (!priv->ict_tbl_vir) + return -ENOMEM; + + /* align table to PAGE_SIZE boundary */ + priv->aligned_ict_tbl_dma = + ALIGN(priv->ict_tbl_dma, PAGE_SIZE); + + IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n", + (unsigned long long)priv->ict_tbl_dma, + (unsigned long long)priv->aligned_ict_tbl_dma, + (int)(priv->aligned_ict_tbl_dma - + priv->ict_tbl_dma)); + + priv->ict_tbl = priv->ict_tbl_vir + + (priv->aligned_ict_tbl_dma - + priv->ict_tbl_dma); + + IWL_DEBUG_ISR(priv, "ict vir addr %p vir aligned %p diff %d\n", + priv->ict_tbl, priv->ict_tbl_vir, + (int)(priv->aligned_ict_tbl_dma - + priv->ict_tbl_dma)); + + /* reset table and index to all 0 */ + memset(priv->ict_tbl_vir, 0, + (sizeof(u32) * ICT_COUNT) + PAGE_SIZE); + priv->ict_index = 0; + + /* add periodic RX interrupt */ + priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC; + return 0; +} + +/* Device is going up inform it about using ICT interrupt table, + * also we need to tell the driver to start using ICT interrupt. + */ +int iwl_reset_ict(struct iwl_priv *priv) +{ + u32 val; + unsigned long flags; + + if (!priv->ict_tbl_vir) + return 0; + + spin_lock_irqsave(&priv->lock, flags); + iwl_disable_interrupts(priv); + + memset(&priv->ict_tbl[0], 0, sizeof(u32) * ICT_COUNT); + + val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT; + + val |= CSR_DRAM_INT_TBL_ENABLE; + val |= CSR_DRAM_INIT_TBL_WRAP_CHECK; + + IWL_DEBUG_ISR(priv, "CSR_DRAM_INT_TBL_REG =0x%X " + "aligned dma address %Lx\n", + val, + (unsigned long long)priv->aligned_ict_tbl_dma); + + iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val); + priv->use_ict = true; + priv->ict_index = 0; + iwl_write32(priv, CSR_INT, priv->inta_mask); + iwl_enable_interrupts(priv); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +} + +/* Device is going down disable ict interrupt usage */ +void iwl_disable_ict(struct iwl_priv *priv) +{ + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + priv->use_ict = false; + spin_unlock_irqrestore(&priv->lock, flags); +} + +static irqreturn_t iwl_isr(int irq, void *data) +{ + struct iwl_priv *priv = data; + u32 inta, inta_mask; + unsigned long flags; +#ifdef CONFIG_IWLWIFI_DEBUG + u32 inta_fh; +#endif + if (!priv) + return IRQ_NONE; + + spin_lock_irqsave(&priv->lock, flags); + + /* Disable (but don't clear!) interrupts here to avoid + * back-to-back ISRs and sporadic interrupts from our NIC. + * If we have something to service, the tasklet will re-enable ints. + * If we *don't* have something, we'll re-enable before leaving here. */ + inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ + iwl_write32(priv, CSR_INT_MASK, 0x00000000); + + /* Discover which interrupts are active/pending */ + inta = iwl_read32(priv, CSR_INT); + + /* Ignore interrupt if there's nothing in NIC to service. + * This may be due to IRQ shared with another device, + * or due to sporadic interrupts thrown from our NIC. */ + if (!inta) { + IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); + goto none; + } + + if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { + /* Hardware disappeared. It might have already raised + * an interrupt */ + IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); + goto unplugged; + } + +#ifdef CONFIG_IWLWIFI_DEBUG + if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { + inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); + IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, " + "fh 0x%08x\n", inta, inta_mask, inta_fh); + } +#endif + + priv->inta |= inta; + /* iwl_irq_tasklet() will service interrupts and re-enable them */ + if (likely(inta)) + tasklet_schedule(&priv->irq_tasklet); + else if (test_bit(STATUS_INT_ENABLED, &priv->status) && + !priv->inta) + iwl_enable_interrupts(priv); + + unplugged: + spin_unlock_irqrestore(&priv->lock, flags); + return IRQ_HANDLED; + + none: + /* re-enable interrupts here since we don't have anything to service. */ + /* only Re-enable if disabled by irq and no schedules tasklet. */ + if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) + iwl_enable_interrupts(priv); + + spin_unlock_irqrestore(&priv->lock, flags); + return IRQ_NONE; +} + +/* interrupt handler using ict table, with this interrupt driver will + * stop using INTA register to get device's interrupt, reading this register + * is expensive, device will write interrupts in ICT dram table, increment + * index then will fire interrupt to driver, driver will OR all ICT table + * entries from current index up to table entry with 0 value. the result is + * the interrupt we need to service, driver will set the entries back to 0 and + * set index. + */ +irqreturn_t iwl_isr_ict(int irq, void *data) +{ + struct iwl_priv *priv = data; + u32 inta, inta_mask; + u32 val = 0; + unsigned long flags; + + if (!priv) + return IRQ_NONE; + + /* dram interrupt table not set yet, + * use legacy interrupt. + */ + if (!priv->use_ict) + return iwl_isr(irq, data); + + spin_lock_irqsave(&priv->lock, flags); + + /* Disable (but don't clear!) interrupts here to avoid + * back-to-back ISRs and sporadic interrupts from our NIC. + * If we have something to service, the tasklet will re-enable ints. + * If we *don't* have something, we'll re-enable before leaving here. + */ + inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ + iwl_write32(priv, CSR_INT_MASK, 0x00000000); + + + /* Ignore interrupt if there's nothing in NIC to service. + * This may be due to IRQ shared with another device, + * or due to sporadic interrupts thrown from our NIC. */ + if (!priv->ict_tbl[priv->ict_index]) { + IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); + goto none; + } + + /* read all entries that not 0 start with ict_index */ + while (priv->ict_tbl[priv->ict_index]) { + + val |= le32_to_cpu(priv->ict_tbl[priv->ict_index]); + IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n", + priv->ict_index, + le32_to_cpu( + priv->ict_tbl[priv->ict_index])); + priv->ict_tbl[priv->ict_index] = 0; + priv->ict_index = iwl_queue_inc_wrap(priv->ict_index, + ICT_COUNT); + + } + + /* We should not get this value, just ignore it. */ + if (val == 0xffffffff) + val = 0; + + /* + * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit + * (bit 15 before shifting it to 31) to clear when using interrupt + * coalescing. fortunately, bits 18 and 19 stay set when this happens + * so we use them to decide on the real state of the Rx bit. + * In order words, bit 15 is set if bit 18 or bit 19 are set. + */ + if (val & 0xC0000) + val |= 0x8000; + + inta = (0xff & val) | ((0xff00 & val) << 16); + IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n", + inta, inta_mask, val); + + inta &= priv->inta_mask; + priv->inta |= inta; + + /* iwl_irq_tasklet() will service interrupts and re-enable them */ + if (likely(inta)) + tasklet_schedule(&priv->irq_tasklet); + else if (test_bit(STATUS_INT_ENABLED, &priv->status) && + !priv->inta) { + /* Allow interrupt if was disabled by this handler and + * no tasklet was schedules, We should not enable interrupt, + * tasklet will enable it. + */ + iwl_enable_interrupts(priv); + } + + spin_unlock_irqrestore(&priv->lock, flags); + return IRQ_HANDLED; + + none: + /* re-enable interrupts here since we don't have anything to service. + * only Re-enable if disabled by irq. + */ + if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) + iwl_enable_interrupts(priv); + + spin_unlock_irqrestore(&priv->lock, flags); + return IRQ_NONE; +} diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c index 9b07e07f1689..a6b2b1db0b1d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c @@ -26,18 +26,58 @@ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ - #include <linux/etherdevice.h> -#include <linux/sched.h> #include <linux/slab.h> +#include <linux/sched.h> #include <net/mac80211.h> -#include "iwl-eeprom.h" + #include "iwl-agn.h" #include "iwl-dev.h" #include "iwl-core.h" -#include "iwl-sta.h" #include "iwl-io.h" #include "iwl-helpers.h" +#include "iwl-trans-int-pcie.h" + +/** + * iwl_trans_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array + */ +void iwl_trans_txq_update_byte_cnt_tbl(struct iwl_priv *priv, + struct iwl_tx_queue *txq, + u16 byte_cnt) +{ + struct iwlagn_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; + int write_ptr = txq->q.write_ptr; + int txq_id = txq->q.id; + u8 sec_ctl = 0; + u8 sta_id = 0; + u16 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; + __le16 bc_ent; + + WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); + + sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id; + sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl; + + switch (sec_ctl & TX_CMD_SEC_MSK) { + case TX_CMD_SEC_CCM: + len += CCMP_MIC_LEN; + break; + case TX_CMD_SEC_TKIP: + len += TKIP_ICV_LEN; + break; + case TX_CMD_SEC_WEP: + len += WEP_IV_LEN + WEP_ICV_LEN; + break; + } + + bc_ent = cpu_to_le16((len & 0xFFF) | (sta_id << 12)); + + scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; + + if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) + scd_bc_tbl[txq_id]. + tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; +} /** * iwl_txq_update_write_ptr - Send new write index to hardware @@ -126,7 +166,7 @@ static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd) } static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta, - struct iwl_tfd *tfd, enum dma_data_direction dma_dir) + struct iwl_tfd *tfd, enum dma_data_direction dma_dir) { int i; int num_tbs; @@ -142,14 +182,14 @@ static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta, /* Unmap tx_cmd */ if (num_tbs) - dma_unmap_single(priv->bus.dev, + dma_unmap_single(priv->bus->dev, dma_unmap_addr(meta, mapping), dma_unmap_len(meta, len), DMA_BIDIRECTIONAL); /* Unmap chunks, if any. */ for (i = 1; i < num_tbs; i++) - dma_unmap_single(priv->bus.dev, iwl_tfd_tb_get_addr(tfd, i), + dma_unmap_single(priv->bus->dev, iwl_tfd_tb_get_addr(tfd, i), iwl_tfd_tb_get_len(tfd, i), dma_dir); } @@ -292,6 +332,187 @@ int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, return 0; } +/*TODO: this functions should NOT be exported from trans module - export it + * until the reclaim flow will be brought to the transport module too. + * Add a declaration to make sparse happy */ +void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, + struct iwl_tx_queue *txq); + +void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, + struct iwl_tx_queue *txq) +{ + struct iwlagn_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; + int txq_id = txq->q.id; + int read_ptr = txq->q.read_ptr; + u8 sta_id = 0; + __le16 bc_ent; + + WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX); + + if (txq_id != priv->cmd_queue) + sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id; + + bc_ent = cpu_to_le16(1 | (sta_id << 12)); + scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent; + + if (read_ptr < TFD_QUEUE_SIZE_BC_DUP) + scd_bc_tbl[txq_id]. + tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent; +} + +static int iwlagn_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, + u16 txq_id) +{ + u32 tbl_dw_addr; + u32 tbl_dw; + u16 scd_q2ratid; + + scd_q2ratid = ra_tid & SCD_QUEUE_RA_TID_MAP_RATID_MSK; + + tbl_dw_addr = priv->scd_base_addr + + SCD_TRANS_TBL_OFFSET_QUEUE(txq_id); + + tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr); + + if (txq_id & 0x1) + tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); + else + tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); + + iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw); + + return 0; +} + +static void iwlagn_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id) +{ + /* Simply stop the queue, but don't change any configuration; + * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ + iwl_write_prph(priv, + SCD_QUEUE_STATUS_BITS(txq_id), + (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)| + (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); +} + +void iwl_trans_set_wr_ptrs(struct iwl_priv *priv, + int txq_id, u32 index) +{ + iwl_write_direct32(priv, HBUS_TARG_WRPTR, + (index & 0xff) | (txq_id << 8)); + iwl_write_prph(priv, SCD_QUEUE_RDPTR(txq_id), index); +} + +void iwl_trans_tx_queue_set_status(struct iwl_priv *priv, + struct iwl_tx_queue *txq, + int tx_fifo_id, int scd_retry) +{ + int txq_id = txq->q.id; + int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0; + + iwl_write_prph(priv, SCD_QUEUE_STATUS_BITS(txq_id), + (active << SCD_QUEUE_STTS_REG_POS_ACTIVE) | + (tx_fifo_id << SCD_QUEUE_STTS_REG_POS_TXF) | + (1 << SCD_QUEUE_STTS_REG_POS_WSL) | + SCD_QUEUE_STTS_REG_MSK); + + txq->sched_retry = scd_retry; + + IWL_DEBUG_INFO(priv, "%s %s Queue %d on FIFO %d\n", + active ? "Activate" : "Deactivate", + scd_retry ? "BA" : "AC/CMD", txq_id, tx_fifo_id); +} + +void iwl_trans_txq_agg_setup(struct iwl_priv *priv, int sta_id, int tid, + int frame_limit) +{ + int tx_fifo, txq_id, ssn_idx; + u16 ra_tid; + unsigned long flags; + struct iwl_tid_data *tid_data; + + if (WARN_ON(sta_id == IWL_INVALID_STATION)) + return; + if (WARN_ON(tid >= MAX_TID_COUNT)) + return; + + spin_lock_irqsave(&priv->sta_lock, flags); + tid_data = &priv->stations[sta_id].tid[tid]; + ssn_idx = SEQ_TO_SN(tid_data->seq_number); + txq_id = tid_data->agg.txq_id; + tx_fifo = tid_data->agg.tx_fifo; + spin_unlock_irqrestore(&priv->sta_lock, flags); + + ra_tid = BUILD_RAxTID(sta_id, tid); + + spin_lock_irqsave(&priv->lock, flags); + + /* Stop this Tx queue before configuring it */ + iwlagn_tx_queue_stop_scheduler(priv, txq_id); + + /* Map receiver-address / traffic-ID to this queue */ + iwlagn_tx_queue_set_q2ratid(priv, ra_tid, txq_id); + + /* Set this queue as a chain-building queue */ + iwl_set_bits_prph(priv, SCD_QUEUECHAIN_SEL, (1<<txq_id)); + + /* enable aggregations for the queue */ + iwl_set_bits_prph(priv, SCD_AGGR_SEL, (1<<txq_id)); + + /* Place first TFD at index corresponding to start sequence number. + * Assumes that ssn_idx is valid (!= 0xFFF) */ + priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); + priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); + iwl_trans_set_wr_ptrs(priv, txq_id, ssn_idx); + + /* Set up Tx window size and frame limit for this queue */ + iwl_write_targ_mem(priv, priv->scd_base_addr + + SCD_CONTEXT_QUEUE_OFFSET(txq_id) + + sizeof(u32), + ((frame_limit << + SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & + SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | + ((frame_limit << + SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & + SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); + + iwl_set_bits_prph(priv, SCD_INTERRUPT_MASK, (1 << txq_id)); + + /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ + iwl_trans_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1); + + spin_unlock_irqrestore(&priv->lock, flags); +} + +int iwl_trans_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, + u16 ssn_idx, u8 tx_fifo) +{ + if ((IWLAGN_FIRST_AMPDU_QUEUE > txq_id) || + (IWLAGN_FIRST_AMPDU_QUEUE + + priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) { + IWL_ERR(priv, + "queue number out of range: %d, must be %d to %d\n", + txq_id, IWLAGN_FIRST_AMPDU_QUEUE, + IWLAGN_FIRST_AMPDU_QUEUE + + priv->cfg->base_params->num_of_ampdu_queues - 1); + return -EINVAL; + } + + iwlagn_tx_queue_stop_scheduler(priv, txq_id); + + iwl_clear_bits_prph(priv, SCD_AGGR_SEL, (1 << txq_id)); + + priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); + priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); + /* supposes that ssn_idx is valid (!= 0xFFF) */ + iwl_trans_set_wr_ptrs(priv, txq_id, ssn_idx); + + iwl_clear_bits_prph(priv, SCD_INTERRUPT_MASK, (1 << txq_id)); + iwl_txq_ctx_deactivate(priv, txq_id); + iwl_trans_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); + + return 0; +} + /*************** HOST COMMAND QUEUE FUNCTIONS *****/ /** @@ -303,7 +524,7 @@ int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, * failed. On success, it turns the index (> 0) of command in the * command queue. */ -int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) +static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) { struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; struct iwl_queue *q = &txq->q; @@ -419,9 +640,9 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) le16_to_cpu(out_cmd->hdr.sequence), cmd_size, q->write_ptr, idx, priv->cmd_queue); - phys_addr = dma_map_single(priv->bus.dev, &out_cmd->hdr, copy_size, + phys_addr = dma_map_single(priv->bus->dev, &out_cmd->hdr, copy_size, DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(priv->bus.dev, phys_addr))) { + if (unlikely(dma_mapping_error(priv->bus->dev, phys_addr))) { idx = -ENOMEM; goto out; } @@ -441,9 +662,9 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) continue; if (!(cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY)) continue; - phys_addr = dma_map_single(priv->bus.dev, (void *)cmd->data[i], + phys_addr = dma_map_single(priv->bus->dev, (void *)cmd->data[i], cmd->len[i], DMA_BIDIRECTIONAL); - if (dma_mapping_error(priv->bus.dev, phys_addr)) { + if (dma_mapping_error(priv->bus->dev, phys_addr)) { iwlagn_unmap_tfd(priv, out_meta, &txq->tfds[q->write_ptr], DMA_BIDIRECTIONAL); @@ -574,3 +795,242 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) spin_unlock_irqrestore(&priv->hcmd_lock, flags); } + +const char *get_cmd_string(u8 cmd) +{ + switch (cmd) { + IWL_CMD(REPLY_ALIVE); + IWL_CMD(REPLY_ERROR); + IWL_CMD(REPLY_RXON); + IWL_CMD(REPLY_RXON_ASSOC); + IWL_CMD(REPLY_QOS_PARAM); + IWL_CMD(REPLY_RXON_TIMING); + IWL_CMD(REPLY_ADD_STA); + IWL_CMD(REPLY_REMOVE_STA); + IWL_CMD(REPLY_REMOVE_ALL_STA); + IWL_CMD(REPLY_TXFIFO_FLUSH); + IWL_CMD(REPLY_WEPKEY); + IWL_CMD(REPLY_TX); + IWL_CMD(REPLY_LEDS_CMD); + IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); + IWL_CMD(COEX_PRIORITY_TABLE_CMD); + IWL_CMD(COEX_MEDIUM_NOTIFICATION); + IWL_CMD(COEX_EVENT_CMD); + IWL_CMD(REPLY_QUIET_CMD); + IWL_CMD(REPLY_CHANNEL_SWITCH); + IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); + IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); + IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); + IWL_CMD(POWER_TABLE_CMD); + IWL_CMD(PM_SLEEP_NOTIFICATION); + IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); + IWL_CMD(REPLY_SCAN_CMD); + IWL_CMD(REPLY_SCAN_ABORT_CMD); + IWL_CMD(SCAN_START_NOTIFICATION); + IWL_CMD(SCAN_RESULTS_NOTIFICATION); + IWL_CMD(SCAN_COMPLETE_NOTIFICATION); + IWL_CMD(BEACON_NOTIFICATION); + IWL_CMD(REPLY_TX_BEACON); + IWL_CMD(WHO_IS_AWAKE_NOTIFICATION); + IWL_CMD(QUIET_NOTIFICATION); + IWL_CMD(REPLY_TX_PWR_TABLE_CMD); + IWL_CMD(MEASURE_ABORT_NOTIFICATION); + IWL_CMD(REPLY_BT_CONFIG); + IWL_CMD(REPLY_STATISTICS_CMD); + IWL_CMD(STATISTICS_NOTIFICATION); + IWL_CMD(REPLY_CARD_STATE_CMD); + IWL_CMD(CARD_STATE_NOTIFICATION); + IWL_CMD(MISSED_BEACONS_NOTIFICATION); + IWL_CMD(REPLY_CT_KILL_CONFIG_CMD); + IWL_CMD(SENSITIVITY_CMD); + IWL_CMD(REPLY_PHY_CALIBRATION_CMD); + IWL_CMD(REPLY_RX_PHY_CMD); + IWL_CMD(REPLY_RX_MPDU_CMD); + IWL_CMD(REPLY_RX); + IWL_CMD(REPLY_COMPRESSED_BA); + IWL_CMD(CALIBRATION_CFG_CMD); + IWL_CMD(CALIBRATION_RES_NOTIFICATION); + IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION); + IWL_CMD(REPLY_TX_POWER_DBM_CMD); + IWL_CMD(TEMPERATURE_NOTIFICATION); + IWL_CMD(TX_ANT_CONFIGURATION_CMD); + IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF); + IWL_CMD(REPLY_BT_COEX_PRIO_TABLE); + IWL_CMD(REPLY_BT_COEX_PROT_ENV); + IWL_CMD(REPLY_WIPAN_PARAMS); + IWL_CMD(REPLY_WIPAN_RXON); + IWL_CMD(REPLY_WIPAN_RXON_TIMING); + IWL_CMD(REPLY_WIPAN_RXON_ASSOC); + IWL_CMD(REPLY_WIPAN_QOS_PARAM); + IWL_CMD(REPLY_WIPAN_WEPKEY); + IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH); + IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION); + IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE); + IWL_CMD(REPLY_WOWLAN_PATTERNS); + IWL_CMD(REPLY_WOWLAN_WAKEUP_FILTER); + IWL_CMD(REPLY_WOWLAN_TSC_RSC_PARAMS); + IWL_CMD(REPLY_WOWLAN_TKIP_PARAMS); + IWL_CMD(REPLY_WOWLAN_KEK_KCK_MATERIAL); + IWL_CMD(REPLY_WOWLAN_GET_STATUS); + default: + return "UNKNOWN"; + + } +} + +#define HOST_COMPLETE_TIMEOUT (2 * HZ) + +static void iwl_generic_cmd_callback(struct iwl_priv *priv, + struct iwl_device_cmd *cmd, + struct iwl_rx_packet *pkt) +{ + if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { + IWL_ERR(priv, "Bad return from %s (0x%08X)\n", + get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); + return; + } + +#ifdef CONFIG_IWLWIFI_DEBUG + switch (cmd->hdr.cmd) { + case REPLY_TX_LINK_QUALITY_CMD: + case SENSITIVITY_CMD: + IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n", + get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); + break; + default: + IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n", + get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); + } +#endif +} + +static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd) +{ + int ret; + + /* An asynchronous command can not expect an SKB to be set. */ + if (WARN_ON(cmd->flags & CMD_WANT_SKB)) + return -EINVAL; + + /* Assign a generic callback if one is not provided */ + if (!cmd->callback) + cmd->callback = iwl_generic_cmd_callback; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return -EBUSY; + + ret = iwl_enqueue_hcmd(priv, cmd); + if (ret < 0) { + IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n", + get_cmd_string(cmd->id), ret); + return ret; + } + return 0; +} + +static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) +{ + int cmd_idx; + int ret; + + lockdep_assert_held(&priv->mutex); + + /* A synchronous command can not have a callback set. */ + if (WARN_ON(cmd->callback)) + return -EINVAL; + + IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n", + get_cmd_string(cmd->id)); + + set_bit(STATUS_HCMD_ACTIVE, &priv->status); + IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n", + get_cmd_string(cmd->id)); + + cmd_idx = iwl_enqueue_hcmd(priv, cmd); + if (cmd_idx < 0) { + ret = cmd_idx; + clear_bit(STATUS_HCMD_ACTIVE, &priv->status); + IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n", + get_cmd_string(cmd->id), ret); + return ret; + } + + ret = wait_event_interruptible_timeout(priv->wait_command_queue, + !test_bit(STATUS_HCMD_ACTIVE, &priv->status), + HOST_COMPLETE_TIMEOUT); + if (!ret) { + if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { + IWL_ERR(priv, + "Error sending %s: time out after %dms.\n", + get_cmd_string(cmd->id), + jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); + + clear_bit(STATUS_HCMD_ACTIVE, &priv->status); + IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command" + "%s\n", get_cmd_string(cmd->id)); + ret = -ETIMEDOUT; + goto cancel; + } + } + + if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { + IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n", + get_cmd_string(cmd->id)); + ret = -ECANCELED; + goto fail; + } + if (test_bit(STATUS_FW_ERROR, &priv->status)) { + IWL_ERR(priv, "Command %s failed: FW Error\n", + get_cmd_string(cmd->id)); + ret = -EIO; + goto fail; + } + if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) { + IWL_ERR(priv, "Error: Response NULL in '%s'\n", + get_cmd_string(cmd->id)); + ret = -EIO; + goto cancel; + } + + return 0; + +cancel: + if (cmd->flags & CMD_WANT_SKB) { + /* + * Cancel the CMD_WANT_SKB flag for the cmd in the + * TX cmd queue. Otherwise in case the cmd comes + * in later, it will possibly set an invalid + * address (cmd->meta.source). + */ + priv->txq[priv->cmd_queue].meta[cmd_idx].flags &= + ~CMD_WANT_SKB; + } +fail: + if (cmd->reply_page) { + iwl_free_pages(priv, cmd->reply_page); + cmd->reply_page = 0; + } + + return ret; +} + +int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) +{ + if (cmd->flags & CMD_ASYNC) + return iwl_send_cmd_async(priv, cmd); + + return iwl_send_cmd_sync(priv, cmd); +} + +int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len, + const void *data) +{ + struct iwl_host_cmd cmd = { + .id = id, + .len = { len, }, + .data = { data, }, + .flags = flags, + }; + + return iwl_send_cmd(priv, &cmd); +} diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c index d760857c8636..41f0de914008 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -64,6 +64,7 @@ #include "iwl-trans.h" #include "iwl-core.h" #include "iwl-helpers.h" +#include "iwl-trans-int-pcie.h" /*TODO remove uneeded includes when the transport layer tx_free will be here */ #include "iwl-agn.h" #include "iwl-core.h" @@ -71,7 +72,7 @@ static int iwl_trans_rx_alloc(struct iwl_priv *priv) { struct iwl_rx_queue *rxq = &priv->rxq; - struct device *dev = priv->bus.dev; + struct device *dev = priv->bus->dev; memset(&priv->rxq, 0, sizeof(priv->rxq)); @@ -117,7 +118,7 @@ static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv) /* In the reset function, these buffers may have been allocated * to an SKB, so we need to unmap and free potential storage */ if (rxq->pool[i].page != NULL) { - dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma, + dma_unmap_page(priv->bus->dev, rxq->pool[i].page_dma, PAGE_SIZE << priv->hw_params.rx_page_order, DMA_FROM_DEVICE); __iwl_free_pages(priv, rxq->pool[i].page); @@ -127,7 +128,56 @@ static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv) } } -static int iwl_trans_rx_init(struct iwl_priv *priv) +static void iwl_trans_rx_hw_init(struct iwl_priv *priv, + struct iwl_rx_queue *rxq) +{ + u32 rb_size; + const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */ + u32 rb_timeout = 0; /* FIXME: RX_RB_TIMEOUT for all devices? */ + + rb_timeout = RX_RB_TIMEOUT; + + if (iwlagn_mod_params.amsdu_size_8K) + rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K; + else + rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K; + + /* Stop Rx DMA */ + iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); + + /* Reset driver's Rx queue write index */ + iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); + + /* Tell device where to find RBD circular buffer in DRAM */ + iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG, + (u32)(rxq->bd_dma >> 8)); + + /* Tell device where in DRAM to update its Rx status */ + iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG, + rxq->rb_stts_dma >> 4); + + /* Enable Rx DMA + * FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY is set because of HW bug in + * the credit mechanism in 5000 HW RX FIFO + * Direct rx interrupts to hosts + * Rx buffer size 4 or 8k + * RB timeout 0x10 + * 256 RBDs + */ + iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, + FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | + FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY | + FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | + FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK | + rb_size| + (rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)| + (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS)); + + /* Set interrupt coalescing timer to default (2048 usecs) */ + iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF); +} + +static int iwl_rx_init(struct iwl_priv *priv) { struct iwl_rx_queue *rxq = &priv->rxq; int i, err; @@ -155,6 +205,15 @@ static int iwl_trans_rx_init(struct iwl_priv *priv) rxq->free_count = 0; spin_unlock_irqrestore(&rxq->lock, flags); + iwlagn_rx_replenish(priv); + + iwl_trans_rx_hw_init(priv, rxq); + + spin_lock_irqsave(&priv->lock, flags); + rxq->need_update = 1; + iwl_rx_queue_update_write_ptr(priv, rxq); + spin_unlock_irqrestore(&priv->lock, flags); + return 0; } @@ -174,13 +233,13 @@ static void iwl_trans_rx_free(struct iwl_priv *priv) iwl_trans_rxq_free_rx_bufs(priv); spin_unlock_irqrestore(&rxq->lock, flags); - dma_free_coherent(priv->bus.dev, sizeof(__le32) * RX_QUEUE_SIZE, + dma_free_coherent(priv->bus->dev, sizeof(__le32) * RX_QUEUE_SIZE, rxq->bd, rxq->bd_dma); memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma)); rxq->bd = NULL; if (rxq->rb_stts) - dma_free_coherent(priv->bus.dev, + dma_free_coherent(priv->bus->dev, sizeof(struct iwl_rb_status), rxq->rb_stts, rxq->rb_stts_dma); else @@ -204,7 +263,7 @@ static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv, if (WARN_ON(ptr->addr)) return -EINVAL; - ptr->addr = dma_alloc_coherent(priv->bus.dev, size, + ptr->addr = dma_alloc_coherent(priv->bus->dev, size, &ptr->dma, GFP_KERNEL); if (!ptr->addr) return -ENOMEM; @@ -218,7 +277,7 @@ static inline void iwlagn_free_dma_ptr(struct iwl_priv *priv, if (unlikely(!ptr->addr)) return; - dma_free_coherent(priv->bus.dev, ptr->size, ptr->addr, ptr->dma); + dma_free_coherent(priv->bus->dev, ptr->size, ptr->addr, ptr->dma); memset(ptr, 0, sizeof(*ptr)); } @@ -265,7 +324,7 @@ static int iwl_trans_txq_alloc(struct iwl_priv *priv, struct iwl_tx_queue *txq, /* Circular buffer of transmit frame descriptors (TFDs), * shared with device */ - txq->tfds = dma_alloc_coherent(priv->bus.dev, tfd_sz, &txq->q.dma_addr, + txq->tfds = dma_alloc_coherent(priv->bus->dev, tfd_sz, &txq->q.dma_addr, GFP_KERNEL); if (!txq->tfds) { IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz); @@ -356,7 +415,7 @@ static void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id) static void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id) { struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct device *dev = priv->bus.dev; + struct device *dev = priv->bus->dev; int i; if (WARN_ON(!txq)) return; @@ -467,11 +526,11 @@ static int iwl_trans_tx_alloc(struct iwl_priv *priv) return 0; error: - trans_tx_free(priv); + trans_tx_free(&priv->trans); return ret; } -static int iwl_trans_tx_init(struct iwl_priv *priv) +static int iwl_tx_init(struct iwl_priv *priv) { int ret; int txq_id, slots_num; @@ -488,7 +547,7 @@ static int iwl_trans_tx_init(struct iwl_priv *priv) spin_lock_irqsave(&priv->lock, flags); /* Turn off all Tx DMA fifos */ - iwl_write_prph(priv, IWLAGN_SCD_TXFACT, 0); + iwl_write_prph(priv, SCD_TXFACT, 0); /* Tell NIC where to find the "keep warm" buffer */ iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); @@ -511,10 +570,308 @@ static int iwl_trans_tx_init(struct iwl_priv *priv) error: /*Upon error, free only if we allocated something */ if (alloc) - trans_tx_free(priv); + trans_tx_free(&priv->trans); + return ret; +} + +static void iwl_set_pwr_vmain(struct iwl_priv *priv) +{ +/* + * (for documentation purposes) + * to set power to V_AUX, do: + + if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) + iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, + APMG_PS_CTRL_VAL_PWR_SRC_VAUX, + ~APMG_PS_CTRL_MSK_PWR_SRC); + */ + + iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, + APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, + ~APMG_PS_CTRL_MSK_PWR_SRC); +} + +static int iwl_nic_init(struct iwl_priv *priv) +{ + unsigned long flags; + + /* nic_init */ + spin_lock_irqsave(&priv->lock, flags); + iwl_apm_init(priv); + + /* Set interrupt coalescing calibration timer to default (512 usecs) */ + iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF); + + spin_unlock_irqrestore(&priv->lock, flags); + + iwl_set_pwr_vmain(priv); + + priv->cfg->lib->nic_config(priv); + + /* Allocate the RX queue, or reset if it is already allocated */ + iwl_rx_init(priv); + + /* Allocate or reset and init all Tx and Command queues */ + if (iwl_tx_init(priv)) + return -ENOMEM; + + if (priv->cfg->base_params->shadow_reg_enable) { + /* enable shadow regs in HW */ + iwl_set_bit(priv, CSR_MAC_SHADOW_REG_CTRL, + 0x800FFFFF); + } + + set_bit(STATUS_INIT, &priv->status); + + return 0; +} + +#define HW_READY_TIMEOUT (50) + +/* Note: returns poll_bit return value, which is >= 0 if success */ +static int iwl_set_hw_ready(struct iwl_priv *priv) +{ + int ret; + + iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); + + /* See if we got it */ + ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, + CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, + HW_READY_TIMEOUT); + + IWL_DEBUG_INFO(priv, "hardware%s ready\n", ret < 0 ? " not" : ""); + return ret; +} + +/* Note: returns standard 0/-ERROR code */ +static int iwl_trans_prepare_card_hw(struct iwl_priv *priv) +{ + int ret; + + IWL_DEBUG_INFO(priv, "iwl_trans_prepare_card_hw enter\n"); + + ret = iwl_set_hw_ready(priv); + if (ret >= 0) + return 0; + + /* If HW is not ready, prepare the conditions to check again */ + iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_PREPARE); + + ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, + ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, + CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); + + if (ret < 0) + return ret; + + /* HW should be ready by now, check again. */ + ret = iwl_set_hw_ready(priv); + if (ret >= 0) + return 0; return ret; } +static int iwl_trans_start_device(struct iwl_priv *priv) +{ + int ret; + + priv->ucode_owner = IWL_OWNERSHIP_DRIVER; + + if ((priv->cfg->sku & EEPROM_SKU_CAP_AMT_ENABLE) && + iwl_trans_prepare_card_hw(priv)) { + IWL_WARN(priv, "Exit HW not ready\n"); + return -EIO; + } + + /* If platform's RF_KILL switch is NOT set to KILL */ + if (iwl_read32(priv, CSR_GP_CNTRL) & + CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) + clear_bit(STATUS_RF_KILL_HW, &priv->status); + else + set_bit(STATUS_RF_KILL_HW, &priv->status); + + if (iwl_is_rfkill(priv)) { + wiphy_rfkill_set_hw_state(priv->hw->wiphy, true); + iwl_enable_interrupts(priv); + return -ERFKILL; + } + + iwl_write32(priv, CSR_INT, 0xFFFFFFFF); + + ret = iwl_nic_init(priv); + if (ret) { + IWL_ERR(priv, "Unable to init nic\n"); + return ret; + } + + /* make sure rfkill handshake bits are cleared */ + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); + + /* clear (again), then enable host interrupts */ + iwl_write32(priv, CSR_INT, 0xFFFFFFFF); + iwl_enable_interrupts(priv); + + /* really make sure rfkill handshake bits are cleared */ + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + + return 0; +} + +/* + * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask + * must be called under priv->lock and mac access + */ +static void iwl_trans_txq_set_sched(struct iwl_priv *priv, u32 mask) +{ + iwl_write_prph(priv, SCD_TXFACT, mask); +} + +#define IWL_AC_UNSET -1 + +struct queue_to_fifo_ac { + s8 fifo, ac; +}; + +static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = { + { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, + { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, + { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, + { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, + { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, +}; + +static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = { + { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, + { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, + { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, + { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, + { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, }, + { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, }, + { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, }, + { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, }, + { IWL_TX_FIFO_BE_IPAN, 2, }, + { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, +}; +static void iwl_trans_tx_start(struct iwl_priv *priv) +{ + const struct queue_to_fifo_ac *queue_to_fifo; + struct iwl_rxon_context *ctx; + u32 a; + unsigned long flags; + int i, chan; + u32 reg_val; + + spin_lock_irqsave(&priv->lock, flags); + + priv->scd_base_addr = iwl_read_prph(priv, SCD_SRAM_BASE_ADDR); + a = priv->scd_base_addr + SCD_CONTEXT_MEM_LOWER_BOUND; + /* reset conext data memory */ + for (; a < priv->scd_base_addr + SCD_CONTEXT_MEM_UPPER_BOUND; + a += 4) + iwl_write_targ_mem(priv, a, 0); + /* reset tx status memory */ + for (; a < priv->scd_base_addr + SCD_TX_STTS_MEM_UPPER_BOUND; + a += 4) + iwl_write_targ_mem(priv, a, 0); + for (; a < priv->scd_base_addr + + SCD_TRANS_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4) + iwl_write_targ_mem(priv, a, 0); + + iwl_write_prph(priv, SCD_DRAM_BASE_ADDR, + priv->scd_bc_tbls.dma >> 10); + + /* Enable DMA channel */ + for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++) + iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan), + FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | + FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE); + + /* Update FH chicken bits */ + reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG); + iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG, + reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); + + iwl_write_prph(priv, SCD_QUEUECHAIN_SEL, + SCD_QUEUECHAIN_SEL_ALL(priv)); + iwl_write_prph(priv, SCD_AGGR_SEL, 0); + + /* initiate the queues */ + for (i = 0; i < priv->hw_params.max_txq_num; i++) { + iwl_write_prph(priv, SCD_QUEUE_RDPTR(i), 0); + iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); + iwl_write_targ_mem(priv, priv->scd_base_addr + + SCD_CONTEXT_QUEUE_OFFSET(i), 0); + iwl_write_targ_mem(priv, priv->scd_base_addr + + SCD_CONTEXT_QUEUE_OFFSET(i) + + sizeof(u32), + ((SCD_WIN_SIZE << + SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & + SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | + ((SCD_FRAME_LIMIT << + SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & + SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); + } + + iwl_write_prph(priv, SCD_INTERRUPT_MASK, + IWL_MASK(0, priv->hw_params.max_txq_num)); + + /* Activate all Tx DMA/FIFO channels */ + iwl_trans_txq_set_sched(priv, IWL_MASK(0, 7)); + + /* map queues to FIFOs */ + if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)) + queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo; + else + queue_to_fifo = iwlagn_default_queue_to_tx_fifo; + + iwl_trans_set_wr_ptrs(priv, priv->cmd_queue, 0); + + /* make sure all queue are not stopped */ + memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); + for (i = 0; i < 4; i++) + atomic_set(&priv->queue_stop_count[i], 0); + for_each_context(priv, ctx) + ctx->last_tx_rejected = false; + + /* reset to 0 to enable all the queue first */ + priv->txq_ctx_active_msk = 0; + + BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10); + BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10); + + for (i = 0; i < 10; i++) { + int fifo = queue_to_fifo[i].fifo; + int ac = queue_to_fifo[i].ac; + + iwl_txq_ctx_activate(priv, i); + + if (fifo == IWL_TX_FIFO_UNUSED) + continue; + + if (ac != IWL_AC_UNSET) + iwl_set_swq_id(&priv->txq[i], ac, i); + iwl_trans_tx_queue_set_status(priv, &priv->txq[i], fifo, 0); + } + + spin_unlock_irqrestore(&priv->lock, flags); + + /* Enable L1-Active */ + iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); +} + /** * iwlagn_txq_ctx_stop - Stop all Tx DMA channels */ @@ -526,7 +883,7 @@ static int iwl_trans_tx_stop(struct iwl_priv *priv) /* Turn off all Tx DMA fifos */ spin_lock_irqsave(&priv->lock, flags); - iwlagn_txq_set_sched(priv, 0); + iwl_trans_txq_set_sched(priv, 0); /* Stop each Tx DMA channel, and wait for it to be idle */ for (ch = 0; ch < FH_TCSR_CHNL_NUM; ch++) { @@ -552,20 +909,264 @@ static int iwl_trans_tx_stop(struct iwl_priv *priv) return 0; } +static void iwl_trans_stop_device(struct iwl_priv *priv) +{ + unsigned long flags; + + /* stop and reset the on-board processor */ + iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + + /* tell the device to stop sending interrupts */ + spin_lock_irqsave(&priv->lock, flags); + iwl_disable_interrupts(priv); + spin_unlock_irqrestore(&priv->lock, flags); + trans_sync_irq(&priv->trans); + + /* device going down, Stop using ICT table */ + iwl_disable_ict(priv); + + /* + * If a HW restart happens during firmware loading, + * then the firmware loading might call this function + * and later it might be called again due to the + * restart. So don't process again if the device is + * already dead. + */ + if (test_bit(STATUS_DEVICE_ENABLED, &priv->status)) { + iwl_trans_tx_stop(priv); + iwl_trans_rx_stop(priv); + + /* Power-down device's busmaster DMA clocks */ + iwl_write_prph(priv, APMG_CLK_DIS_REG, + APMG_CLK_VAL_DMA_CLK_RQT); + udelay(5); + } + + /* Make sure (redundant) we've released our request to stay awake */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + + /* Stop the device, and put it in low power state */ + iwl_apm_stop(priv); +} + +static struct iwl_tx_cmd *iwl_trans_get_tx_cmd(struct iwl_priv *priv, + int txq_id) +{ + struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct iwl_queue *q = &txq->q; + struct iwl_device_cmd *dev_cmd; + + if (unlikely(iwl_queue_space(q) < q->high_mark)) + return NULL; + + /* + * Set up the Tx-command (not MAC!) header. + * Store the chosen Tx queue and TFD index within the sequence field; + * after Tx, uCode's Tx response will return this value so driver can + * locate the frame within the tx queue and do post-tx processing. + */ + dev_cmd = txq->cmd[q->write_ptr]; + memset(dev_cmd, 0, sizeof(*dev_cmd)); + dev_cmd->hdr.cmd = REPLY_TX; + dev_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | + INDEX_TO_SEQ(q->write_ptr))); + return &dev_cmd->cmd.tx; +} + +static int iwl_trans_tx(struct iwl_priv *priv, struct sk_buff *skb, + struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, + struct iwl_rxon_context *ctx) +{ + struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct iwl_queue *q = &txq->q; + struct iwl_device_cmd *dev_cmd = txq->cmd[q->write_ptr]; + struct iwl_cmd_meta *out_meta; + + dma_addr_t phys_addr = 0; + dma_addr_t txcmd_phys; + dma_addr_t scratch_phys; + u16 len, firstlen, secondlen; + u8 wait_write_ptr = 0; + u8 hdr_len = ieee80211_hdrlen(fc); + + /* Set up driver data for this TFD */ + memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); + txq->txb[q->write_ptr].skb = skb; + txq->txb[q->write_ptr].ctx = ctx; + + /* Set up first empty entry in queue's array of Tx/cmd buffers */ + out_meta = &txq->meta[q->write_ptr]; + + /* + * Use the first empty entry in this queue's command buffer array + * to contain the Tx command and MAC header concatenated together + * (payload data will be in another buffer). + * Size of this varies, due to varying MAC header length. + * If end is not dword aligned, we'll have 2 extra bytes at the end + * of the MAC header (device reads on dword boundaries). + * We'll tell device about this padding later. + */ + len = sizeof(struct iwl_tx_cmd) + + sizeof(struct iwl_cmd_header) + hdr_len; + firstlen = (len + 3) & ~3; + + /* Tell NIC about any 2-byte padding after MAC header */ + if (firstlen != len) + tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK; + + /* Physical address of this Tx command's header (not MAC header!), + * within command buffer array. */ + txcmd_phys = dma_map_single(priv->bus->dev, + &dev_cmd->hdr, firstlen, + DMA_BIDIRECTIONAL); + if (unlikely(dma_mapping_error(priv->bus->dev, txcmd_phys))) + return -1; + dma_unmap_addr_set(out_meta, mapping, txcmd_phys); + dma_unmap_len_set(out_meta, len, firstlen); + + if (!ieee80211_has_morefrags(fc)) { + txq->need_update = 1; + } else { + wait_write_ptr = 1; + txq->need_update = 0; + } + + /* Set up TFD's 2nd entry to point directly to remainder of skb, + * if any (802.11 null frames have no payload). */ + secondlen = skb->len - hdr_len; + if (secondlen > 0) { + phys_addr = dma_map_single(priv->bus->dev, skb->data + hdr_len, + secondlen, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(priv->bus->dev, phys_addr))) { + dma_unmap_single(priv->bus->dev, + dma_unmap_addr(out_meta, mapping), + dma_unmap_len(out_meta, len), + DMA_BIDIRECTIONAL); + return -1; + } + } + + /* Attach buffers to TFD */ + iwlagn_txq_attach_buf_to_tfd(priv, txq, txcmd_phys, firstlen, 1); + if (secondlen > 0) + iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr, + secondlen, 0); + + scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) + + offsetof(struct iwl_tx_cmd, scratch); + + /* take back ownership of DMA buffer to enable update */ + dma_sync_single_for_cpu(priv->bus->dev, txcmd_phys, firstlen, + DMA_BIDIRECTIONAL); + tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys); + tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys); + + IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n", + le16_to_cpu(dev_cmd->hdr.sequence)); + IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); + iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd)); + iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len); + + /* Set up entry for this TFD in Tx byte-count array */ + if (ampdu) + iwl_trans_txq_update_byte_cnt_tbl(priv, txq, + le16_to_cpu(tx_cmd->len)); + + dma_sync_single_for_device(priv->bus->dev, txcmd_phys, firstlen, + DMA_BIDIRECTIONAL); + + trace_iwlwifi_dev_tx(priv, + &((struct iwl_tfd *)txq->tfds)[txq->q.write_ptr], + sizeof(struct iwl_tfd), + &dev_cmd->hdr, firstlen, + skb->data + hdr_len, secondlen); + + /* Tell device the write index *just past* this latest filled TFD */ + q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); + iwl_txq_update_write_ptr(priv, txq); + + /* + * At this point the frame is "transmitted" successfully + * and we will get a TX status notification eventually, + * regardless of the value of ret. "ret" only indicates + * whether or not we should update the write pointer. + */ + if ((iwl_queue_space(q) < q->high_mark) && priv->mac80211_registered) { + if (wait_write_ptr) { + txq->need_update = 1; + iwl_txq_update_write_ptr(priv, txq); + } else { + iwl_stop_queue(priv, txq); + } + } + return 0; +} + +static void iwl_trans_kick_nic(struct iwl_priv *priv) +{ + /* Remove all resets to allow NIC to operate */ + iwl_write32(priv, CSR_RESET, 0); +} + +static void iwl_trans_sync_irq(struct iwl_priv *priv) +{ + /* wait to make sure we flush pending tasklet*/ + synchronize_irq(priv->bus->irq); + tasklet_kill(&priv->irq_tasklet); +} + +static void iwl_trans_free(struct iwl_priv *priv) +{ + free_irq(priv->bus->irq, priv); + iwl_free_isr_ict(priv); +} + static const struct iwl_trans_ops trans_ops = { - .rx_init = iwl_trans_rx_init, - .rx_stop = iwl_trans_rx_stop, - .rx_free = iwl_trans_rx_free, + .start_device = iwl_trans_start_device, + .prepare_card_hw = iwl_trans_prepare_card_hw, + .stop_device = iwl_trans_stop_device, - .tx_init = iwl_trans_tx_init, - .tx_stop = iwl_trans_tx_stop, + .tx_start = iwl_trans_tx_start, + + .rx_free = iwl_trans_rx_free, .tx_free = iwl_trans_tx_free, .send_cmd = iwl_send_cmd, .send_cmd_pdu = iwl_send_cmd_pdu, + + .get_tx_cmd = iwl_trans_get_tx_cmd, + .tx = iwl_trans_tx, + + .txq_agg_disable = iwl_trans_txq_agg_disable, + .txq_agg_setup = iwl_trans_txq_agg_setup, + + .kick_nic = iwl_trans_kick_nic, + + .sync_irq = iwl_trans_sync_irq, + .free = iwl_trans_free, }; -void iwl_trans_register(struct iwl_trans *trans) +int iwl_trans_register(struct iwl_trans *trans, struct iwl_priv *priv) { - trans->ops = &trans_ops; + int err; + + priv->trans.ops = &trans_ops; + priv->trans.priv = priv; + + tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) + iwl_irq_tasklet, (unsigned long)priv); + + iwl_alloc_isr_ict(priv); + + err = request_irq(priv->bus->irq, iwl_isr_ict, IRQF_SHARED, + DRV_NAME, priv); + if (err) { + IWL_ERR(priv, "Error allocating IRQ %d\n", priv->bus->irq); + iwl_free_isr_ict(priv); + return err; + } + + INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); + + return 0; } diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 111acca07d75..7993aa7ae668 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -60,46 +60,166 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ -static inline int trans_rx_init(struct iwl_priv *priv) +#ifndef __iwl_trans_h__ +#define __iwl_trans_h__ + + /*This file includes the declaration that are exported from the transport + * layer */ + +struct iwl_priv; +struct iwl_rxon_context; +struct iwl_host_cmd; + +/** + * struct iwl_trans_ops - transport specific operations + * @start_device: allocates and inits all the resources for the transport + * layer. + * @prepare_card_hw: claim the ownership on the HW. Will be called during + * probe. + * @tx_start: starts and configures all the Tx fifo - usually done once the fw + * is alive. + * @stop_device:stops the whole device (embedded CPU put to reset) + * @rx_free: frees the rx memory + * @tx_free: frees the tx memory + * @send_cmd:send a host command + * @send_cmd_pdu:send a host command: flags can be CMD_* + * @get_tx_cmd: returns a pointer to a new Tx cmd for the upper layer use + * @tx: send an skb + * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is + * ready and a successful ADDBA response has been received. + * @txq_agg_disable: de-configure a Tx queue to send AMPDUs + * @kick_nic: remove the RESET from the embedded CPU and let it run + * @sync_irq: the upper layer will typically disable interrupt and call this + * handler. After this handler returns, it is guaranteed that all + * the ISR / tasklet etc... have finished running and the transport + * layer shall not pass any Rx. + * @free: release all the ressource for the transport layer itself such as + * irq, tasklet etc... + */ +struct iwl_trans_ops { + + int (*start_device)(struct iwl_priv *priv); + int (*prepare_card_hw)(struct iwl_priv *priv); + void (*stop_device)(struct iwl_priv *priv); + void (*tx_start)(struct iwl_priv *priv); + void (*tx_free)(struct iwl_priv *priv); + void (*rx_free)(struct iwl_priv *priv); + + int (*send_cmd)(struct iwl_priv *priv, struct iwl_host_cmd *cmd); + + int (*send_cmd_pdu)(struct iwl_priv *priv, u8 id, u32 flags, u16 len, + const void *data); + struct iwl_tx_cmd * (*get_tx_cmd)(struct iwl_priv *priv, int txq_id); + int (*tx)(struct iwl_priv *priv, struct sk_buff *skb, + struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, + struct iwl_rxon_context *ctx); + + int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, + u16 ssn_idx, u8 tx_fifo); + void (*txq_agg_setup)(struct iwl_priv *priv, int sta_id, int tid, + int frame_limit); + + void (*kick_nic)(struct iwl_priv *priv); + + void (*sync_irq)(struct iwl_priv *priv); + void (*free)(struct iwl_priv *priv); +}; + +struct iwl_trans { + const struct iwl_trans_ops *ops; + struct iwl_priv *priv; +}; + +static inline int trans_start_device(struct iwl_trans *trans) { - return priv->trans.ops->rx_init(priv); + return trans->ops->start_device(trans->priv); } -static inline int trans_rx_stop(struct iwl_priv *priv) +static inline int trans_prepare_card_hw(struct iwl_trans *trans) { - return priv->trans.ops->rx_stop(priv); + return trans->ops->prepare_card_hw(trans->priv); } -static inline void trans_rx_free(struct iwl_priv *priv) +static inline void trans_stop_device(struct iwl_trans *trans) { - priv->trans.ops->rx_free(priv); + trans->ops->stop_device(trans->priv); } -static inline int trans_tx_init(struct iwl_priv *priv) +static inline void trans_tx_start(struct iwl_trans *trans) { - return priv->trans.ops->tx_init(priv); + trans->ops->tx_start(trans->priv); } -static inline int trans_tx_stop(struct iwl_priv *priv) +static inline void trans_rx_free(struct iwl_trans *trans) { - return priv->trans.ops->tx_stop(priv); + trans->ops->rx_free(trans->priv); } -static inline void trans_tx_free(struct iwl_priv *priv) +static inline void trans_tx_free(struct iwl_trans *trans) { - priv->trans.ops->tx_free(priv); + trans->ops->tx_free(trans->priv); } -static inline int trans_send_cmd(struct iwl_priv *priv, +static inline int trans_send_cmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd) { - return priv->trans.ops->send_cmd(priv, cmd); + return trans->ops->send_cmd(trans->priv, cmd); } -static inline int trans_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, +static inline int trans_send_cmd_pdu(struct iwl_trans *trans, u8 id, u32 flags, u16 len, const void *data) { - return priv->trans.ops->send_cmd_pdu(priv, id, flags, len, data); + return trans->ops->send_cmd_pdu(trans->priv, id, flags, len, data); +} + +static inline struct iwl_tx_cmd *trans_get_tx_cmd(struct iwl_trans *trans, + int txq_id) +{ + return trans->ops->get_tx_cmd(trans->priv, txq_id); } -void iwl_trans_register(struct iwl_trans *trans); +static inline int trans_tx(struct iwl_trans *trans, struct sk_buff *skb, + struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, + struct iwl_rxon_context *ctx) +{ + return trans->ops->tx(trans->priv, skb, tx_cmd, txq_id, fc, ampdu, ctx); +} + +static inline int trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id, + u16 ssn_idx, u8 tx_fifo) +{ + return trans->ops->txq_agg_disable(trans->priv, txq_id, + ssn_idx, tx_fifo); +} + +static inline void trans_txq_agg_setup(struct iwl_trans *trans, int sta_id, + int tid, int frame_limit) +{ + trans->ops->txq_agg_setup(trans->priv, sta_id, tid, frame_limit); +} + +static inline void trans_kick_nic(struct iwl_trans *trans) +{ + trans->ops->kick_nic(trans->priv); +} + +static inline void trans_sync_irq(struct iwl_trans *trans) +{ + trans->ops->sync_irq(trans->priv); +} + +static inline void trans_free(struct iwl_trans *trans) +{ + trans->ops->free(trans->priv); +} + +int iwl_trans_register(struct iwl_trans *trans, struct iwl_priv *priv); + +/*TODO: this functions should NOT be exported from trans module - export it + * until the reclaim flow will be brought to the transport module too */ + +struct iwl_tx_queue; +void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, + struct iwl_tx_queue *txq); + +#endif /* __iwl_trans_h__ */ |
