wl1271: add wl1271 driver files

This driver supports the wl1271 chipset from Texas Instruments based on the
WiLink(tm) 6.0 mobile platform.  Support for wl1273 should be relatively easy
to add.  This chipset is designed for embedded devices, with good powersaving
capabilities.  The wl1271 chipset is the successor of wl1251 and supports the
802.11b/g/n standards, but currently this driver supports only b/g.

More information about this chipset can be found here:
http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12762&contentId=29993

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 464 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.h b/drivers/net/wireless/wl12xx/wl1271_cmd.h
new file mode 100644
index 000000000000..951a8447a516
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.h
@@ -0,0 +1,464 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 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 St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL1271_CMD_H__
+#define __WL1271_CMD_H__
+
+#include "wl1271.h"
+
+struct acx_header;
+
+int wl1271_cmd_send(struct wl1271 *wl, u16 type, void *buf, size_t buf_len);
+int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
+		    u16 beacon_interval, u8 wait);
+int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer);
+int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len);
+int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len);
+int wl1271_cmd_data_path(struct wl1271 *wl, u8 channel, bool enable);
+int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode);
+int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
+			   size_t len);
+int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
+		    u8 active_scan, u8 high_prio, u8 num_channels,
+		    u8 probe_requests);
+int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
+			    void *buf, size_t buf_len);
+int wl1271_cmd_build_null_data(struct wl1271 *wl);
+int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid);
+int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len);
+int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id);
+int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
+		       u8 key_size, const u8 *key, const u8 *addr);
+
+enum wl1271_commands {
+	CMD_INTERROGATE     = 1,    /*use this to read information elements*/
+	CMD_CONFIGURE       = 2,    /*use this to write information elements*/
+	CMD_ENABLE_RX       = 3,
+	CMD_ENABLE_TX       = 4,
+	CMD_DISABLE_RX      = 5,
+	CMD_DISABLE_TX      = 6,
+	CMD_SCAN            = 8,
+	CMD_STOP_SCAN       = 9,
+	CMD_START_JOIN      = 11,
+	CMD_SET_KEYS        = 12,
+	CMD_READ_MEMORY     = 13,
+	CMD_WRITE_MEMORY    = 14,
+	CMD_SET_TEMPLATE    = 19,
+	CMD_TEST            = 23,
+	CMD_NOISE_HIST      = 28,
+	CMD_LNA_CONTROL     = 32,
+	CMD_SET_BCN_MODE    = 33,
+	CMD_MEASUREMENT      = 34,
+	CMD_STOP_MEASUREMENT = 35,
+	CMD_DISCONNECT       = 36,
+	CMD_SET_PS_MODE      = 37,
+	CMD_CHANNEL_SWITCH   = 38,
+	CMD_STOP_CHANNEL_SWICTH = 39,
+	CMD_AP_DISCOVERY     = 40,
+	CMD_STOP_AP_DISCOVERY = 41,
+	CMD_SPS_SCAN = 42,
+	CMD_STOP_SPS_SCAN = 43,
+	CMD_HEALTH_CHECK     = 45,
+	CMD_DEBUG            = 46,
+	CMD_TRIGGER_SCAN_TO  = 47,
+	CMD_CONNECTION_SCAN_CFG      = 48,
+	CMD_CONNECTION_SCAN_SSID_CFG = 49,
+	CMD_START_PERIODIC_SCAN      = 50,
+	CMD_STOP_PERIODIC_SCAN       = 51,
+	CMD_SET_STA_STATE            = 52,
+
+	NUM_COMMANDS,
+	MAX_COMMAND_ID = 0xFFFF,
+};
+
+#define MAX_CMD_PARAMS 572
+
+enum cmd_templ {
+	CMD_TEMPL_NULL_DATA = 0,
+	CMD_TEMPL_BEACON,
+	CMD_TEMPL_CFG_PROBE_REQ_2_4,
+	CMD_TEMPL_CFG_PROBE_REQ_5,
+	CMD_TEMPL_PROBE_RESPONSE,
+	CMD_TEMPL_QOS_NULL_DATA,
+	CMD_TEMPL_PS_POLL,
+	CMD_TEMPL_KLV,
+	CMD_TEMPL_DISCONNECT,
+	CMD_TEMPL_PROBE_REQ_2_4, /* for firmware internal use only */
+	CMD_TEMPL_PROBE_REQ_5,   /* for firmware internal use only */
+	CMD_TEMPL_BAR,           /* for firmware internal use only */
+	CMD_TEMPL_CTS,           /*
+				  * For CTS-to-self (FastCTS) mechanism
+				  * for BT/WLAN coexistence (SoftGemini). */
+	CMD_TEMPL_MAX = 0xff
+};
+
+/* unit ms */
+#define WL1271_COMMAND_TIMEOUT     2000
+#define WL1271_CMD_TEMPL_MAX_SIZE  252
+
+struct wl1271_cmd_header {
+	u16 id;
+	u16 status;
+	/* payload */
+	u8 data[0];
+} __attribute__ ((packed));
+
+#define WL1271_CMD_MAX_PARAMS 572
+
+struct wl1271_command {
+	struct wl1271_cmd_header header;
+	u8  parameters[WL1271_CMD_MAX_PARAMS];
+} __attribute__ ((packed));
+
+enum {
+	CMD_MAILBOX_IDLE		=  0,
+	CMD_STATUS_SUCCESS		=  1,
+	CMD_STATUS_UNKNOWN_CMD		=  2,
+	CMD_STATUS_UNKNOWN_IE		=  3,
+	CMD_STATUS_REJECT_MEAS_SG_ACTIVE	= 11,
+	CMD_STATUS_RX_BUSY		= 13,
+	CMD_STATUS_INVALID_PARAM		= 14,
+	CMD_STATUS_TEMPLATE_TOO_LARGE		= 15,
+	CMD_STATUS_OUT_OF_MEMORY		= 16,
+	CMD_STATUS_STA_TABLE_FULL		= 17,
+	CMD_STATUS_RADIO_ERROR		= 18,
+	CMD_STATUS_WRONG_NESTING		= 19,
+	CMD_STATUS_TIMEOUT		= 21, /* Driver internal use.*/
+	CMD_STATUS_FW_RESET		= 22, /* Driver internal use.*/
+	MAX_COMMAND_STATUS		= 0xff
+};
+
+
+/*
+ * CMD_READ_MEMORY
+ *
+ * The host issues this command to read the WiLink device memory/registers.
+ *
+ * Note: The Base Band address has special handling (16 bits registers and
+ * addresses). For more information, see the hardware specification.
+ */
+/*
+ * CMD_WRITE_MEMORY
+ *
+ * The host issues this command to write the WiLink device memory/registers.
+ *
+ * The Base Band address has special handling (16 bits registers and
+ * addresses). For more information, see the hardware specification.
+ */
+#define MAX_READ_SIZE 256
+
+struct cmd_read_write_memory {
+	struct wl1271_cmd_header header;
+
+	/* The address of the memory to read from or write to.*/
+	u32 addr;
+
+	/* The amount of data in bytes to read from or write to the WiLink
+	 * device.*/
+	u32 size;
+
+	/* The actual value read from or written to the Wilink. The source
+	   of this field is the Host in WRITE command or the Wilink in READ
+	   command. */
+	u8 value[MAX_READ_SIZE];
+};
+
+#define CMDMBOX_HEADER_LEN 4
+#define CMDMBOX_INFO_ELEM_HEADER_LEN 4
+
+enum {
+	BSS_TYPE_IBSS = 0,
+	BSS_TYPE_STA_BSS = 2,
+	BSS_TYPE_AP_BSS = 3,
+	MAX_BSS_TYPE = 0xFF
+};
+
+#define WL1271_JOIN_CMD_CTRL_TX_FLUSH     0x80 /* Firmware flushes all Tx */
+#define WL1271_JOIN_CMD_TX_SESSION_OFFSET 1
+
+struct wl1271_cmd_join {
+	struct wl1271_cmd_header header;
+
+	u32 bssid_lsb;
+	u16 bssid_msb;
+	u16 beacon_interval; /* in TBTTs */
+	u32 rx_config_options;
+	u32 rx_filter_options;
+
+	/*
+	 * The target uses this field to determine the rate at
+	 * which to transmit control frame responses (such as
+	 * ACK or CTS frames).
+	 */
+	u32 basic_rate_set;
+	u8 dtim_interval;
+	/*
+	 * bits 0-2: This bitwise field specifies the type
+	 * of BSS to start or join (BSS_TYPE_*).
+	 * bit 4: Band - The radio band in which to join
+	 * or start.
+	 *  0 - 2.4GHz band
+	 *  1 - 5GHz band
+	 * bits 3, 5-7: Reserved
+	 */
+	u8 bss_type;
+	u8 channel;
+	u8 ssid_len;
+	u8 ssid[IW_ESSID_MAX_SIZE];
+	u8 ctrl; /* JOIN_CMD_CTRL_* */
+	u8 reserved[3];
+} __attribute__ ((packed));
+
+struct cmd_enabledisable_path {
+	struct wl1271_cmd_header header;
+
+	u8 channel;
+	u8 padding[3];
+} __attribute__ ((packed));
+
+struct wl1271_cmd_template_set {
+	struct wl1271_cmd_header header;
+
+	u16 len;
+	u8 template_type;
+	u8 index;  /* relevant only for KLV_TEMPLATE type */
+	u32 enabled_rates;
+	u8 short_retry_limit;
+	u8 long_retry_limit;
+	u8 aflags;
+	u8 reserved;
+	u8 template_data[WL1271_CMD_TEMPL_MAX_SIZE];
+} __attribute__ ((packed));
+
+#define TIM_ELE_ID    5
+#define PARTIAL_VBM_MAX    251
+
+struct wl1271_tim {
+	u8 identity;
+	u8 length;
+	u8 dtim_count;
+	u8 dtim_period;
+	u8 bitmap_ctrl;
+	u8 pvb_field[PARTIAL_VBM_MAX]; /* Partial Virtual Bitmap */
+} __attribute__ ((packed));
+
+enum wl1271_cmd_ps_mode {
+	STATION_ACTIVE_MODE,
+	STATION_POWER_SAVE_MODE
+};
+
+struct wl1271_cmd_ps_params {
+	struct wl1271_cmd_header header;
+
+	u8 ps_mode; /* STATION_* */
+	u8 send_null_data; /* Do we have to send NULL data packet ? */
+	u8 retries; /* Number of retires for the initial NULL data packet */
+
+	 /*
+	  * TUs during which the target stays awake after switching
+	  * to power save mode.
+	  */
+	u8 hang_over_period;
+	u32 null_data_rate;
+} __attribute__ ((packed));
+
+/* HW encryption keys */
+#define NUM_ACCESS_CATEGORIES_COPY 4
+#define MAX_KEY_SIZE 32
+
+/* When set, disable HW encryption */
+#define DF_ENCRYPTION_DISABLE      0x01
+/* When set, disable HW decryption */
+#define DF_SNIFF_MODE_ENABLE       0x80
+
+enum wl1271_cmd_key_action {
+	KEY_ADD_OR_REPLACE = 1,
+	KEY_REMOVE         = 2,
+	KEY_SET_ID         = 3,
+	MAX_KEY_ACTION     = 0xffff,
+};
+
+enum wl1271_cmd_key_type {
+	KEY_NONE = 0,
+	KEY_WEP  = 1,
+	KEY_TKIP = 2,
+	KEY_AES  = 3,
+	KEY_GEM  = 4
+};
+
+/* FIXME: Add description for key-types */
+
+struct wl1271_cmd_set_keys {
+	struct wl1271_cmd_header header;
+
+	/* Ignored for default WEP key */
+	u8 addr[ETH_ALEN];
+
+	/* key_action_e */
+	u16 key_action;
+
+	u16 reserved_1;
+
+	/* key size in bytes */
+	u8 key_size;
+
+	/* key_type_e */
+	u8 key_type;
+	u8 ssid_profile;
+
+	/*
+	 * TKIP, AES: frame's key id field.
+	 * For WEP default key: key id;
+	 */
+	u8 id;
+	u8 reserved_2[6];
+	u8 key[MAX_KEY_SIZE];
+	u16 ac_seq_num16[NUM_ACCESS_CATEGORIES_COPY];
+	u32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY];
+} __attribute__ ((packed));
+
+
+#define WL1271_SCAN_MAX_CHANNELS       24
+#define WL1271_SCAN_DEFAULT_TAG        1
+#define WL1271_SCAN_CURRENT_TX_PWR     0
+#define WL1271_SCAN_OPT_ACTIVE         0
+#define WL1271_SCAN_OPT_PASSIVE	       1
+#define WL1271_SCAN_OPT_PRIORITY_HIGH  4
+#define WL1271_SCAN_CHAN_MIN_DURATION  30000  /* TU */
+#define WL1271_SCAN_CHAN_MAX_DURATION  60000  /* TU */
+
+struct basic_scan_params {
+	u32 rx_config_options;
+	u32 rx_filter_options;
+	/* Scan option flags (WL1271_SCAN_OPT_*) */
+	u16 scan_options;
+	/* Number of scan channels in the list (maximum 30) */
+	u8 num_channels;
+	/* This field indicates the number of probe requests to send
+	   per channel for an active scan */
+	u8 num_probe_requests;
+	/* Rate bit field for sending the probes */
+	u32 tx_rate;
+	u8 tid_trigger;
+	u8 ssid_len;
+	/* in order to align */
+	u8 padding1[2];
+	u8 ssid[IW_ESSID_MAX_SIZE];
+	/* Band to scan */
+	u8 band;
+	u8 use_ssid_list;
+	u8 scan_tag;
+	u8 padding2;
+} __attribute__ ((packed));
+
+struct basic_scan_channel_params {
+	/* Duration in TU to wait for frames on a channel for active scan */
+	u32 min_duration;
+	u32 max_duration;
+	u32 bssid_lsb;
+	u16 bssid_msb;
+	u8 early_termination;
+	u8 tx_power_att;
+	u8 channel;
+	/* FW internal use only! */
+	u8 dfs_candidate;
+	u8 activity_detected;
+	u8 pad;
+} __attribute__ ((packed));
+
+struct wl1271_cmd_scan {
+	struct wl1271_cmd_header header;
+
+	struct basic_scan_params params;
+	struct basic_scan_channel_params channels[WL1271_SCAN_MAX_CHANNELS];
+} __attribute__ ((packed));
+
+struct wl1271_cmd_trigger_scan_to {
+	struct wl1271_cmd_header header;
+
+	u32 timeout;
+};
+
+struct wl1271_cmd_test_header {
+	u8 id;
+	u8 padding[3];
+};
+
+enum wl1271_channel_tune_bands {
+	WL1271_CHANNEL_TUNE_BAND_2_4,
+	WL1271_CHANNEL_TUNE_BAND_5,
+	WL1271_CHANNEL_TUNE_BAND_4_9
+};
+
+#define WL1271_PD_REFERENCE_POINT_BAND_B_G 0
+
+#define TEST_CMD_P2G_CAL                   0x02
+#define TEST_CMD_CHANNEL_TUNE              0x0d
+#define TEST_CMD_UPDATE_PD_REFERENCE_POINT 0x1d
+
+struct wl1271_cmd_cal_channel_tune {
+	struct wl1271_cmd_header header;
+
+	struct wl1271_cmd_test_header test;
+
+	u8 band;
+	u8 channel;
+
+	u16 radio_status;
+} __attribute__ ((packed));
+
+struct wl1271_cmd_cal_update_ref_point {
+	struct wl1271_cmd_header header;
+
+	struct wl1271_cmd_test_header test;
+
+	s32 ref_power;
+	s32 ref_detector;
+	u8  sub_band;
+	u8  padding[3];
+} __attribute__ ((packed));
+
+#define MAX_TLV_LENGTH         400
+#define	MAX_NVS_VERSION_LENGTH 12
+
+#define WL1271_CAL_P2G_BAND_B_G BIT(0)
+
+struct wl1271_cmd_cal_p2g {
+	struct wl1271_cmd_header header;
+
+	struct wl1271_cmd_test_header test;
+
+	u16 len;
+	u8  buf[MAX_TLV_LENGTH];
+	u8  type;
+	u8  padding;
+
+	s16 radio_status;
+	u8  nvs_version[MAX_NVS_VERSION_LENGTH];
+
+	u8  sub_band_mask;
+	u8  padding2;
+} __attribute__ ((packed));
+
+#endif /* __WL1271_CMD_H__ */