diff options
Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_main.c')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_main.c | 4597 |
1 files changed, 4597 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c new file mode 100644 index 000000000000..be60a6509f20 --- /dev/null +++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c @@ -0,0 +1,4597 @@ +/* + + Broadcom BCM43xx wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Stefano Brivio <st3@riseup.net> + Michael Buesch <mbuesch@freenet.de> + Danny van Dyk <kugelfang@gentoo.org> + Andreas Jaggi <andreas.jaggi@waterwave.ch> + + Some parts of the code in this file are derived from the ipw2200 + driver Copyright(c) 2003 - 2004 Intel Corporation. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + 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; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/moduleparam.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/version.h> +#include <linux/firmware.h> +#include <linux/wireless.h> +#include <linux/workqueue.h> +#include <linux/skbuff.h> +#include <net/iw_handler.h> + +#include "bcm43xx.h" +#include "bcm43xx_main.h" +#include "bcm43xx_debugfs.h" +#include "bcm43xx_radio.h" +#include "bcm43xx_phy.h" +#include "bcm43xx_dma.h" +#include "bcm43xx_pio.h" +#include "bcm43xx_power.h" +#include "bcm43xx_wx.h" + + +MODULE_DESCRIPTION("Broadcom BCM43xx wireless driver"); +MODULE_AUTHOR("Martin Langer"); +MODULE_AUTHOR("Stefano Brivio"); +MODULE_AUTHOR("Michael Buesch"); +MODULE_LICENSE("GPL"); + +#ifdef CONFIG_BCM947XX +extern char *nvram_get(char *name); +#endif + +/* Module parameters */ +static int modparam_pio; +module_param_named(pio, modparam_pio, int, 0444); +MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode"); + +static int modparam_bad_frames_preempt; +module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); +MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames Preemption"); + +static int modparam_short_retry = BCM43xx_DEFAULT_SHORT_RETRY_LIMIT; +module_param_named(short_retry, modparam_short_retry, int, 0444); +MODULE_PARM_DESC(short_retry, "Short-Retry-Limit (0 - 15)"); + +static int modparam_long_retry = BCM43xx_DEFAULT_LONG_RETRY_LIMIT; +module_param_named(long_retry, modparam_long_retry, int, 0444); +MODULE_PARM_DESC(long_retry, "Long-Retry-Limit (0 - 15)"); + +static int modparam_locale = -1; +module_param_named(locale, modparam_locale, int, 0444); +MODULE_PARM_DESC(country, "Select LocaleCode 0-11 (For travelers)"); + +static int modparam_outdoor; +module_param_named(outdoor, modparam_outdoor, int, 0444); +MODULE_PARM_DESC(outdoor, "Set to 1, if you are using the device outdoor, 0 otherwise."); + +static int modparam_noleds; +module_param_named(noleds, modparam_noleds, int, 0444); +MODULE_PARM_DESC(noleds, "Turn off all LED activity"); + +#ifdef CONFIG_BCM43XX_DEBUG +static char modparam_fwpostfix[64]; +module_param_string(fwpostfix, modparam_fwpostfix, 64, 0444); +MODULE_PARM_DESC(fwpostfix, "Postfix for .fw files. Useful for debugging."); +#else +# define modparam_fwpostfix "" +#endif /* CONFIG_BCM43XX_DEBUG*/ + + +/* If you want to debug with just a single device, enable this, + * where the string is the pci device ID (as given by the kernel's + * pci_name function) of the device to be used. + */ +//#define DEBUG_SINGLE_DEVICE_ONLY "0001:11:00.0" + +/* If you want to enable printing of each MMIO access, enable this. */ +//#define DEBUG_ENABLE_MMIO_PRINT + +/* If you want to enable printing of MMIO access within + * ucode/pcm upload, initvals write, enable this. + */ +//#define DEBUG_ENABLE_UCODE_MMIO_PRINT + +/* If you want to enable printing of PCI Config Space access, enable this */ +//#define DEBUG_ENABLE_PCILOG + + +static struct pci_device_id bcm43xx_pci_tbl[] = { + + /* Detailed list maintained at: + * http://openfacts.berlios.de/index-en.phtml?title=Bcm43xxDevices + */ + +#ifdef CONFIG_BCM947XX + /* SB bus on BCM947xx */ + { PCI_VENDOR_ID_BROADCOM, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, +#endif + + /* Broadcom 4303 802.11b */ + { PCI_VENDOR_ID_BROADCOM, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* Broadcom 4307 802.11b */ + { PCI_VENDOR_ID_BROADCOM, 0x4307, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* Broadcom 4318 802.11b/g */ + { PCI_VENDOR_ID_BROADCOM, 0x4318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* Broadcom 4306 802.11b/g */ + { PCI_VENDOR_ID_BROADCOM, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* Broadcom 4306 802.11a */ +// { PCI_VENDOR_ID_BROADCOM, 0x4321, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* Broadcom 4309 802.11a/b/g */ + { PCI_VENDOR_ID_BROADCOM, 0x4324, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* Broadcom 43XG 802.11b/g */ + { PCI_VENDOR_ID_BROADCOM, 0x4325, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + + /* required last entry */ + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, bcm43xx_pci_tbl); + +static void bcm43xx_ram_write(struct bcm43xx_private *bcm, u16 offset, u32 val) +{ + u32 status; + + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + if (!(status & BCM43xx_SBF_XFER_REG_BYTESWAP)) + val = swab32(val); + + bcm43xx_write32(bcm, BCM43xx_MMIO_RAM_CONTROL, offset); + bcm43xx_write32(bcm, BCM43xx_MMIO_RAM_DATA, val); +} + +static inline +void bcm43xx_shm_control_word(struct bcm43xx_private *bcm, + u16 routing, u16 offset) +{ + u32 control; + + /* "offset" is the WORD offset. */ + + control = routing; + control <<= 16; + control |= offset; + bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_CONTROL, control); +} + +u32 bcm43xx_shm_read32(struct bcm43xx_private *bcm, + u16 routing, u16 offset) +{ + u32 ret; + + if (routing == BCM43xx_SHM_SHARED) { + if (offset & 0x0003) { + /* Unaligned access */ + bcm43xx_shm_control_word(bcm, routing, offset >> 2); + ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED); + ret <<= 16; + bcm43xx_shm_control_word(bcm, routing, (offset >> 2) + 1); + ret |= bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA); + + return ret; + } + offset >>= 2; + } + bcm43xx_shm_control_word(bcm, routing, offset); + ret = bcm43xx_read32(bcm, BCM43xx_MMIO_SHM_DATA); + + return ret; +} + +u16 bcm43xx_shm_read16(struct bcm43xx_private *bcm, + u16 routing, u16 offset) +{ + u16 ret; + + if (routing == BCM43xx_SHM_SHARED) { + if (offset & 0x0003) { + /* Unaligned access */ + bcm43xx_shm_control_word(bcm, routing, offset >> 2); + ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED); + + return ret; + } + offset >>= 2; + } + bcm43xx_shm_control_word(bcm, routing, offset); + ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA); + + return ret; +} + +void bcm43xx_shm_write32(struct bcm43xx_private *bcm, + u16 routing, u16 offset, + u32 value) +{ + if (routing == BCM43xx_SHM_SHARED) { + if (offset & 0x0003) { + /* Unaligned access */ + bcm43xx_shm_control_word(bcm, routing, offset >> 2); + bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED, + (value >> 16) & 0xffff); + bcm43xx_shm_control_word(bcm, routing, (offset >> 2) + 1); + bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA, + value & 0xffff); + return; + } + offset >>= 2; + } + bcm43xx_shm_control_word(bcm, routing, offset); + bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, value); +} + +void bcm43xx_shm_write16(struct bcm43xx_private *bcm, + u16 routing, u16 offset, + u16 value) +{ + if (routing == BCM43xx_SHM_SHARED) { + if (offset & 0x0003) { + /* Unaligned access */ + bcm43xx_shm_control_word(bcm, routing, offset >> 2); + bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED, + value); + return; + } + offset >>= 2; + } + bcm43xx_shm_control_word(bcm, routing, offset); + bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA, value); +} + +void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf) +{ + /* We need to be careful. As we read the TSF from multiple + * registers, we should take care of register overflows. + * In theory, the whole tsf read process should be atomic. + * We try to be atomic here, by restaring the read process, + * if any of the high registers changed (overflew). + */ + if (bcm->current_core->rev >= 3) { + u32 low, high, high2; + + do { + high = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH); + low = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW); + high2 = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH); + } while (unlikely(high != high2)); + + *tsf = high; + *tsf <<= 32; + *tsf |= low; + } else { + u64 tmp; + u16 v0, v1, v2, v3; + u16 test1, test2, test3; + + do { + v3 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_3); + v2 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_2); + v1 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_1); + v0 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_0); + + test3 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_3); + test2 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_2); + test1 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_1); + } while (v3 != test3 || v2 != test2 || v1 != test1); + + *tsf = v3; + *tsf <<= 48; + tmp = v2; + tmp <<= 32; + *tsf |= tmp; + tmp = v1; + tmp <<= 16; + *tsf |= tmp; + *tsf |= v0; + } +} + +void bcm43xx_tsf_write(struct bcm43xx_private *bcm, u64 tsf) +{ + u32 status; + + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + status |= BCM43xx_SBF_TIME_UPDATE; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status); + + /* Be careful with the in-progress timer. + * First zero out the low register, so we have a full + * register-overflow duration to complete the operation. + */ + if (bcm->current_core->rev >= 3) { + u32 lo = (tsf & 0x00000000FFFFFFFFULL); + u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32; + + barrier(); + bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW, 0); + bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH, hi); + bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW, lo); + } else { + u16 v0 = (tsf & 0x000000000000FFFFULL); + u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16; + u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32; + u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48; + + barrier(); + bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_0, 0); + bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_3, v3); + bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_2, v2); + bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_1, v1); + bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_0, v0); + } + + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + status &= ~BCM43xx_SBF_TIME_UPDATE; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status); +} + +static inline +u8 bcm43xx_plcp_get_bitrate(struct bcm43xx_plcp_hdr4 *plcp, + const int ofdm_modulation) +{ + u8 rate; + + if (ofdm_modulation) { + switch (plcp->raw[0] & 0xF) { + case 0xB: + rate = IEEE80211_OFDM_RATE_6MB; + break; + case 0xF: + rate = IEEE80211_OFDM_RATE_9MB; + break; + case 0xA: + rate = IEEE80211_OFDM_RATE_12MB; + break; + case 0xE: + rate = IEEE80211_OFDM_RATE_18MB; + break; + case 0x9: + rate = IEEE80211_OFDM_RATE_24MB; + break; + case 0xD: + rate = IEEE80211_OFDM_RATE_36MB; + break; + case 0x8: + rate = IEEE80211_OFDM_RATE_48MB; + break; + case 0xC: + rate = IEEE80211_OFDM_RATE_54MB; + break; + default: + rate = 0; + assert(0); + } + } else { + switch (plcp->raw[0]) { + case 0x0A: + rate = IEEE80211_CCK_RATE_1MB; + break; + case 0x14: + rate = IEEE80211_CCK_RATE_2MB; + break; + case 0x37: + rate = IEEE80211_CCK_RATE_5MB; + break; + case 0x6E: + rate = IEEE80211_CCK_RATE_11MB; + break; + default: + rate = 0; + assert(0); + } + } + + return rate; +} + +static inline +u8 bcm43xx_plcp_get_ratecode_cck(const u8 bitrate) +{ + switch (bitrate) { + case IEEE80211_CCK_RATE_1MB: + return 0x0A; + case IEEE80211_CCK_RATE_2MB: + return 0x14; + case IEEE80211_CCK_RATE_5MB: + return 0x37; + case IEEE80211_CCK_RATE_11MB: + return 0x6E; + } + assert(0); + return 0; +} + +static inline +u8 bcm43xx_plcp_get_ratecode_ofdm(const u8 bitrate) +{ + switch (bitrate) { + case IEEE80211_OFDM_RATE_6MB: + return 0xB; + case IEEE80211_OFDM_RATE_9MB: + return 0xF; + case IEEE80211_OFDM_RATE_12MB: + return 0xA; + case IEEE80211_OFDM_RATE_18MB: + return 0xE; + case IEEE80211_OFDM_RATE_24MB: + return 0x9; + case IEEE80211_OFDM_RATE_36MB: + return 0xD; + case IEEE80211_OFDM_RATE_48MB: + return 0x8; + case IEEE80211_OFDM_RATE_54MB: + return 0xC; + } + assert(0); + return 0; +} + +static void bcm43xx_generate_plcp_hdr(struct bcm43xx_plcp_hdr4 *plcp, + u16 octets, const u8 bitrate, + const int ofdm_modulation) +{ + __le32 *data = &(plcp->data); + __u8 *raw = plcp->raw; + + /* Account for hardware-appended FCS. */ + octets += IEEE80211_FCS_LEN; + + if (ofdm_modulation) { + *data = bcm43xx_plcp_get_ratecode_ofdm(bitrate); + assert(!(octets & 0xF000)); + *data |= (octets << 5); + *data = cpu_to_le32(*data); + } else { + u32 plen; + + plen = octets * 16 / bitrate; + if ((octets * 16 % bitrate) > 0) { + plen++; + if ((bitrate == IEEE80211_CCK_RATE_11MB) + && ((octets * 8 % 11) < 4)) { + raw[1] = 0x84; + } else + raw[1] = 0x04; + } else + raw[1] = 0x04; + *data |= cpu_to_le32(plen << 16); + raw[0] = bcm43xx_plcp_get_ratecode_cck(bitrate); + } + +//bcm43xx_printk_bitdump(raw, 4, 0, "PLCP"); +} + +void fastcall +bcm43xx_generate_txhdr(struct bcm43xx_private *bcm, + struct bcm43xx_txhdr *txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, + const int is_first_fragment, + const u16 cookie) +{ + const struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + const struct ieee80211_hdr_1addr *wireless_header = (const struct ieee80211_hdr_1addr *)fragment_data; + const struct ieee80211_security *secinfo = &bcm->ieee->sec; + u8 bitrate; + int ofdm_modulation; + u8 fallback_bitrate; + int fallback_ofdm_modulation; + u16 tmp; + u16 encrypt_frame; + + /* Now construct the TX header. */ + memset(txhdr, 0, sizeof(*txhdr)); + + //TODO: Some RTS/CTS stuff has to be done. + //TODO: Encryption stuff. + //TODO: others? + + bitrate = bcm->softmac->txrates.default_rate; + ofdm_modulation = !(ieee80211_is_cck_rate(bitrate)); + fallback_bitrate = bcm->softmac->txrates.default_fallback; + fallback_ofdm_modulation = !(ieee80211_is_cck_rate(fallback_bitrate)); + + /* Set Frame Control from 80211 header. */ + txhdr->frame_control = wireless_header->frame_ctl; + /* Copy address1 from 80211 header. */ + memcpy(txhdr->mac1, wireless_header->addr1, 6); + /* Set the fallback duration ID. */ + //FIXME: We use the original durid for now. + txhdr->fallback_dur_id = wireless_header->duration_id; + + /* Set the cookie (used as driver internal ID for the frame) */ + txhdr->cookie = cpu_to_le16(cookie); + + encrypt_frame = le16_to_cpup(&wireless_header->frame_ctl) & IEEE80211_FCTL_PROTECTED; + if (encrypt_frame && !bcm->ieee->host_encrypt) { + const struct ieee80211_hdr_3addr *hdr = (struct ieee80211_hdr_3addr *)wireless_header; + if (fragment_len <= sizeof(struct ieee80211_hdr_3addr)+4) { + dprintkl(KERN_ERR PFX "invalid packet with PROTECTED" + "flag set discarded"); + return; + } + memcpy(txhdr->wep_iv, hdr->payload, 4); + /* Hardware appends ICV. */ + fragment_len += 4; + } + + /* Generate the PLCP header and the fallback PLCP header. */ + bcm43xx_generate_plcp_hdr((struct bcm43xx_plcp_hdr4 *)(&txhdr->plcp), + fragment_len, + bitrate, ofdm_modulation); + bcm43xx_generate_plcp_hdr(&txhdr->fallback_plcp, fragment_len, + fallback_bitrate, fallback_ofdm_modulation); + + /* Set the CONTROL field */ + tmp = 0; + if (ofdm_modulation) + tmp |= BCM43xx_TXHDRCTL_OFDM; + if (bcm->short_preamble) //FIXME: could be the other way around, please test + tmp |= BCM43xx_TXHDRCTL_SHORT_PREAMBLE; + tmp |= (phy->antenna_diversity << BCM43xx_TXHDRCTL_ANTENNADIV_SHIFT) + & BCM43xx_TXHDRCTL_ANTENNADIV_MASK; + txhdr->control = cpu_to_le16(tmp); + + /* Set the FLAGS field */ + tmp = 0; + if (!is_multicast_ether_addr(wireless_header->addr1) && + !is_broadcast_ether_addr(wireless_header->addr1)) + tmp |= BCM43xx_TXHDRFLAG_EXPECTACK; + if (1 /* FIXME: PS poll?? */) + tmp |= 0x10; // FIXME: unknown meaning. + if (fallback_ofdm_modulation) + tmp |= BCM43xx_TXHDRFLAG_FALLBACKOFDM; + if (is_first_fragment) + tmp |= BCM43xx_TXHDRFLAG_FIRSTFRAGMENT; + txhdr->flags = cpu_to_le16(tmp); + + /* Set WSEC/RATE field */ + if (encrypt_frame && !bcm->ieee->host_encrypt) { + tmp = (bcm->key[secinfo->active_key].algorithm << BCM43xx_TXHDR_WSEC_ALGO_SHIFT) + & BCM43xx_TXHDR_WSEC_ALGO_MASK; + tmp |= (secinfo->active_key << BCM43xx_TXHDR_WSEC_KEYINDEX_SHIFT) + & BCM43xx_TXHDR_WSEC_KEYINDEX_MASK; + txhdr->wsec_rate = cpu_to_le16(tmp); + } + +//bcm43xx_printk_bitdump((const unsigned char *)txhdr, sizeof(*txhdr), 1, "TX header"); +} + +static +void bcm43xx_macfilter_set(struct bcm43xx_private *bcm, + u16 offset, + const u8 *mac) +{ + u16 data; + + offset |= 0x0020; + bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_CONTROL, offset); + + data = mac[0]; + data |= mac[1] << 8; + bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data); + data = mac[2]; + data |= mac[3] << 8; + bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data); + data = mac[4]; + data |= mac[5] << 8; + bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data); +} + +static inline +void bcm43xx_macfilter_clear(struct bcm43xx_private *bcm, + u16 offset) +{ + const u8 zero_addr[ETH_ALEN] = { 0 }; + + bcm43xx_macfilter_set(bcm, offset, zero_addr); +} + +static void bcm43xx_write_mac_bssid_templates(struct bcm43xx_private *bcm) +{ + const u8 *mac = (const u8 *)(bcm->net_dev->dev_addr); + const u8 *bssid = (const u8 *)(bcm->ieee->bssid); + u8 mac_bssid[ETH_ALEN * 2]; + int i; + + memcpy(mac_bssid, mac, ETH_ALEN); + memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); + + /* Write our MAC address and BSSID to template ram */ + for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) + bcm43xx_ram_write(bcm, 0x20 + i, *((u32 *)(mac_bssid + i))); + for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) + bcm43xx_ram_write(bcm, 0x78 + i, *((u32 *)(mac_bssid + i))); + for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) + bcm43xx_ram_write(bcm, 0x478 + i, *((u32 *)(mac_bssid + i))); +} + +static inline +void bcm43xx_set_slot_time(struct bcm43xx_private *bcm, u16 slot_time) +{ + /* slot_time is in usec. */ + if (bcm->current_core->phy->type != BCM43xx_PHYTYPE_G) + return; + bcm43xx_write16(bcm, 0x684, 510 + slot_time); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0010, slot_time); +} + +static inline +void bcm43xx_short_slot_timing_enable(struct bcm43xx_private *bcm) +{ + bcm43xx_set_slot_time(bcm, 9); +} + +static inline +void bcm43xx_short_slot_timing_disable(struct bcm43xx_private *bcm) +{ + bcm43xx_set_slot_time(bcm, 20); +} + +//FIXME: rename this func? +static void bcm43xx_disassociate(struct bcm43xx_private *bcm) +{ + bcm43xx_mac_suspend(bcm); + bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC); + + bcm43xx_ram_write(bcm, 0x0026, 0x0000); + bcm43xx_ram_write(bcm, 0x0028, 0x0000); + bcm43xx_ram_write(bcm, 0x007E, 0x0000); + bcm43xx_ram_write(bcm, 0x0080, 0x0000); + bcm43xx_ram_write(bcm, 0x047E, 0x0000); + bcm43xx_ram_write(bcm, 0x0480, 0x0000); + + if (bcm->current_core->rev < 3) { + bcm43xx_write16(bcm, 0x0610, 0x8000); + bcm43xx_write16(bcm, 0x060E, 0x0000); + } else + bcm43xx_write32(bcm, 0x0188, 0x80000000); + + bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0004, 0x000003ff); + + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_G && + ieee80211_is_ofdm_rate(bcm->softmac->txrates.default_rate)) + bcm43xx_short_slot_timing_enable(bcm); + + bcm43xx_mac_enable(bcm); +} + +//FIXME: rename this func? +static void bcm43xx_associate(struct bcm43xx_private *bcm, + const u8 *mac) +{ + memcpy(bcm->ieee->bssid, mac, ETH_ALEN); + + bcm43xx_mac_suspend(bcm); + bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_ASSOC, mac); + bcm43xx_write_mac_bssid_templates(bcm); + bcm43xx_mac_enable(bcm); +} + +/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable. + * Returns the _previously_ enabled IRQ mask. + */ +static inline u32 bcm43xx_interrupt_enable(struct bcm43xx_private *bcm, u32 mask) +{ + u32 old_mask; + + old_mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK); + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK, old_mask | mask); + + return old_mask; +} + +/* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable. + * Returns the _previously_ enabled IRQ mask. + */ +static inline u32 bcm43xx_interrupt_disable(struct bcm43xx_private *bcm, u32 mask) +{ + u32 old_mask; + + old_mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK); + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK, old_mask & ~mask); + + return old_mask; +} + +/* Make sure we don't receive more data from the device. */ +static int bcm43xx_disable_interrupts_sync(struct bcm43xx_private *bcm, u32 *oldstate) +{ + u32 old; + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + if (bcm43xx_is_initializing(bcm) || bcm->shutting_down) { + spin_unlock_irqrestore(&bcm->lock, flags); + return -EBUSY; + } + old = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL); + tasklet_disable(&bcm->isr_tasklet); + spin_unlock_irqrestore(&bcm->lock, flags); + if (oldstate) + *oldstate = old; + + return 0; +} + +static int bcm43xx_read_radioinfo(struct bcm43xx_private *bcm) +{ + u32 radio_id; + u16 manufact; + u16 version; + u8 revision; + s8 i; + + if (bcm->chip_id == 0x4317) { + if (bcm->chip_rev == 0x00) + radio_id = 0x3205017F; + else if (bcm->chip_rev == 0x01) + radio_id = 0x4205017F; + else + radio_id = 0x5205017F; + } else { + bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, BCM43xx_RADIOCTL_ID); + radio_id = bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_HIGH); + radio_id <<= 16; + bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, BCM43xx_RADIOCTL_ID); + radio_id |= bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW); + } + + manufact = (radio_id & 0x00000FFF); + version = (radio_id & 0x0FFFF000) >> 12; + revision = (radio_id & 0xF0000000) >> 28; + + dprintk(KERN_INFO PFX "Detected Radio: ID: %x (Manuf: %x Ver: %x Rev: %x)\n", + radio_id, manufact, version, revision); + + switch (bcm->current_core->phy->type) { + case BCM43xx_PHYTYPE_A: + if ((version != 0x2060) || (revision != 1) || (manufact != 0x17f)) + goto err_unsupported_radio; + break; + case BCM43xx_PHYTYPE_B: + if ((version & 0xFFF0) != 0x2050) + goto err_unsupported_radio; + break; + case BCM43xx_PHYTYPE_G: + if (version != 0x2050) + goto err_unsupported_radio; + break; + } + + bcm->current_core->radio->manufact = manufact; + bcm->current_core->radio->version = version; + bcm->current_core->radio->revision = revision; + + /* Set default attenuation values. */ + bcm->current_core->radio->txpower[0] = 2; + bcm->current_core->radio->txpower[1] = 2; + if (revision == 1) + bcm->current_core->radio->txpower[2] = 3; + else + bcm->current_core->radio->txpower[2] = 0; + + /* Initialize the in-memory nrssi Lookup Table. */ + for (i = 0; i < 64; i++) + bcm->current_core->radio->nrssi_lt[i] = i; + + return 0; + +err_unsupported_radio: + printk(KERN_ERR PFX "Unsupported Radio connected to the PHY!\n"); + return -ENODEV; +} + +static const char * bcm43xx_locale_iso(u8 locale) +{ + /* ISO 3166-1 country codes. + * Note that there aren't ISO 3166-1 codes for + * all or locales. (Not all locales are countries) + */ + switch (locale) { + case BCM43xx_LOCALE_WORLD: + case BCM43xx_LOCALE_ALL: + return "XX"; + case BCM43xx_LOCALE_THAILAND: + return "TH"; + case BCM43xx_LOCALE_ISRAEL: + return "IL"; + case BCM43xx_LOCALE_JORDAN: + return "JO"; + case BCM43xx_LOCALE_CHINA: + return "CN"; + case BCM43xx_LOCALE_JAPAN: + case BCM43xx_LOCALE_JAPAN_HIGH: + return "JP"; + case BCM43xx_LOCALE_USA_CANADA_ANZ: + case BCM43xx_LOCALE_USA_LOW: + return "US"; + case BCM43xx_LOCALE_EUROPE: + return "EU"; + case BCM43xx_LOCALE_NONE: + return " "; + } + assert(0); + return " "; +} + +static const char * bcm43xx_locale_string(u8 locale) +{ + switch (locale) { + case BCM43xx_LOCALE_WORLD: + return "World"; + case BCM43xx_LOCALE_THAILAND: + return "Thailand"; + case BCM43xx_LOCALE_ISRAEL: + return "Israel"; + case BCM43xx_LOCALE_JORDAN: + return "Jordan"; + case BCM43xx_LOCALE_CHINA: + return "China"; + case BCM43xx_LOCALE_JAPAN: + return "Japan"; + case BCM43xx_LOCALE_USA_CANADA_ANZ: + return "USA/Canada/ANZ"; + case BCM43xx_LOCALE_EUROPE: + return "Europe"; + case BCM43xx_LOCALE_USA_LOW: + return "USAlow"; + case BCM43xx_LOCALE_JAPAN_HIGH: + return "JapanHigh"; + case BCM43xx_LOCALE_ALL: + return "All"; + case BCM43xx_LOCALE_NONE: + return "None"; + } + assert(0); + return ""; +} + +static inline u8 bcm43xx_crc8(u8 crc, u8 data) +{ + static const u8 t[] = { + 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, + 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, + 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, + 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, + 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, + 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, + 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, + 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, + 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, + 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, + 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, + 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, + 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, + 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, + 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, + 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, + 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, + 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, + 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, + 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, + 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, + 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, + 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, + 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, + 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, + 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, + 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, + 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, + 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, + 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, + 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, + 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, + }; + return t[crc ^ data]; +} + +u8 bcm43xx_sprom_crc(const u16 *sprom) +{ + int word; + u8 crc = 0xFF; + + for (word = 0; word < BCM43xx_SPROM_SIZE - 1; word++) { + crc = bcm43xx_crc8(crc, sprom[word] & 0x00FF); + crc = bcm43xx_crc8(crc, (sprom[word] & 0xFF00) >> 8); + } + crc = bcm43xx_crc8(crc, sprom[BCM43xx_SPROM_VERSION] & 0x00FF); + crc ^= 0xFF; + + return crc; +} + + +static int bcm43xx_read_sprom(struct bcm43xx_private *bcm) +{ + int i; + u16 value; + u16 *sprom; + u8 crc, expected_crc; +#ifdef CONFIG_BCM947XX + char *c; +#endif + + sprom = kzalloc(BCM43xx_SPROM_SIZE * sizeof(u16), + GFP_KERNEL); + if (!sprom) { + printk(KERN_ERR PFX "read_sprom OOM\n"); + return -ENOMEM; + } +#ifdef CONFIG_BCM947XX + sprom[BCM43xx_SPROM_BOARDFLAGS2] = atoi(nvram_get("boardflags2")); + sprom[BCM43xx_SPROM_BOARDFLAGS] = atoi(nvram_get("boardflags")); + + if ((c = nvram_get("il0macaddr")) != NULL) + e_aton(c, (char *) &(sprom[BCM43xx_SPROM_IL0MACADDR])); + + if ((c = nvram_get("et1macaddr")) != NULL) + e_aton(c, (char *) &(sprom[BCM43xx_SPROM_ET1MACADDR])); + + sprom[BCM43xx_SPROM_PA0B0] = atoi(nvram_get("pa0b0")); + sprom[BCM43xx_SPROM_PA0B1] = atoi(nvram_get("pa0b1")); + sprom[BCM43xx_SPROM_PA0B2] = atoi(nvram_get("pa0b2")); + + sprom[BCM43xx_SPROM_PA1B0] = atoi(nvram_get("pa1b0")); + sprom[BCM43xx_SPROM_PA1B1] = atoi(nvram_get("pa1b1")); + sprom[BCM43xx_SPROM_PA1B2] = atoi(nvram_get("pa1b2")); + + sprom[BCM43xx_SPROM_BOARDREV] = atoi(nvram_get("boardrev")); +#else + for (i = 0; i < BCM43xx_SPROM_SIZE; i++) + sprom[i] = bcm43xx_read16(bcm, BCM43xx_SPROM_BASE + (i * 2)); + + /* CRC-8 check. */ + crc = bcm43xx_sprom_crc(sprom); + expected_crc = (sprom[BCM43xx_SPROM_VERSION] & 0xFF00) >> 8; + if (crc != expected_crc) { + printk(KERN_WARNING PFX "WARNING: Invalid SPROM checksum " + "(0x%02X, expected: 0x%02X)\n", + crc, expected_crc); + } +#endif + + /* boardflags2 */ + value = sprom[BCM43xx_SPROM_BOARDFLAGS2]; + bcm->sprom.boardflags2 = value; + + /* il0macaddr */ + value = sprom[BCM43xx_SPROM_IL0MACADDR + 0]; + *(((u16 *)bcm->sprom.il0macaddr) + 0) = cpu_to_be16(value); + value = sprom[BCM43xx_SPROM_IL0MACADDR + 1]; + *(((u16 *)bcm->sprom.il0macaddr) + 1) = cpu_to_be16(value); + value = sprom[BCM43xx_SPROM_IL0MACADDR + 2]; + *(((u16 *)bcm->sprom.il0macaddr) + 2) = cpu_to_be16(value); + + /* et0macaddr */ + value = sprom[BCM43xx_SPROM_ET0MACADDR + 0]; + *(((u16 *)bcm->sprom.et0macaddr) + 0) = cpu_to_be16(value); + value = sprom[BCM43xx_SPROM_ET0MACADDR + 1]; + *(((u16 *)bcm->sprom.et0macaddr) + 1) = cpu_to_be16(value); + value = sprom[BCM43xx_SPROM_ET0MACADDR + 2]; + *(((u16 *)bcm->sprom.et0macaddr) + 2) = cpu_to_be16(value); + + /* et1macaddr */ + value = sprom[BCM43xx_SPROM_ET1MACADDR + 0]; + *(((u16 *)bcm->sprom.et1macaddr) + 0) = cpu_to_be16(value); + value = sprom[BCM43xx_SPROM_ET1MACADDR + 1]; + *(((u16 *)bcm->sprom.et1macaddr) + 1) = cpu_to_be16(value); + value = sprom[BCM43xx_SPROM_ET1MACADDR + 2]; + *(((u16 *)bcm->sprom.et1macaddr) + 2) = cpu_to_be16(value); + + /* ethernet phy settings */ + value = sprom[BCM43xx_SPROM_ETHPHY]; + bcm->sprom.et0phyaddr = (value & 0x001F); + bcm->sprom.et1phyaddr = (value & 0x03E0) >> 5; + bcm->sprom.et0mdcport = (value & (1 << 14)) >> 14; + bcm->sprom.et1mdcport = (value & (1 << 15)) >> 15; + + /* boardrev, antennas, locale */ + value = sprom[BCM43xx_SPROM_BOARDREV]; + bcm->sprom.boardrev = (value & 0x00FF); + bcm->sprom.locale = (value & 0x0F00) >> 8; + bcm->sprom.antennas_aphy = (value & 0x3000) >> 12; + bcm->sprom.antennas_bgphy = (value & 0xC000) >> 14; + if (modparam_locale != -1) { + if (modparam_locale >= 0 && modparam_locale <= 11) { + bcm->sprom.locale = modparam_locale; + printk(KERN_WARNING PFX "Operating with modified " + "LocaleCode %u (%s)\n", + bcm->sprom.locale, + bcm43xx_locale_string(bcm->sprom.locale)); + } else { + printk(KERN_WARNING PFX "Module parameter \"locale\" " + "invalid value. (0 - 11)\n"); + } + } + + /* pa0b* */ + value = sprom[BCM43xx_SPROM_PA0B0]; + bcm->sprom.pa0b0 = value; + value = sprom[BCM43xx_SPROM_PA0B1]; + bcm->sprom.pa0b1 = value; + value = sprom[BCM43xx_SPROM_PA0B2]; + bcm->sprom.pa0b2 = value; + + /* wl0gpio* */ + value = sprom[BCM43xx_SPROM_WL0GPIO0]; + if (value == 0x0000) + value = 0xFFFF; + bcm->sprom.wl0gpio0 = value & 0x00FF; + bcm->sprom.wl0gpio1 = (value & 0xFF00) >> 8; + value = sprom[BCM43xx_SPROM_WL0GPIO2]; + if (value == 0x0000) + value = 0xFFFF; + bcm->sprom.wl0gpio2 = value & 0x00FF; + bcm->sprom.wl0gpio3 = (value & 0xFF00) >> 8; + + /* maxpower */ + value = sprom[BCM43xx_SPROM_MAXPWR]; + bcm->sprom.maxpower_aphy = (value & 0xFF00) >> 8; + bcm->sprom.maxpower_bgphy = value & 0x00FF; + + /* pa1b* */ + value = sprom[BCM43xx_SPROM_PA1B0]; + bcm->sprom.pa1b0 = value; + value = sprom[BCM43xx_SPROM_PA1B1]; + bcm->sprom.pa1b1 = value; + value = sprom[BCM43xx_SPROM_PA1B2]; + bcm->sprom.pa1b2 = value; + + /* idle tssi target */ + value = sprom[BCM43xx_SPROM_IDL_TSSI_TGT]; + bcm->sprom.idle_tssi_tgt_aphy = value & 0x00FF; + bcm->sprom.idle_tssi_tgt_bgphy = (value & 0xFF00) >> 8; + + /* boardflags */ + value = sprom[BCM43xx_SPROM_BOARDFLAGS]; + if (value == 0xFFFF) + value = 0x0000; + bcm->sprom.boardflags = value; + + /* antenna gain */ + value = sprom[BCM43xx_SPROM_ANTENNA_GAIN]; + if (value == 0x0000 || value == 0xFFFF) + value = 0x0202; + /* convert values to Q5.2 */ + bcm->sprom.antennagain_aphy = ((value & 0xFF00) >> 8) * 4; + bcm->sprom.antennagain_bgphy = (value & 0x00FF) * 4; + + kfree(sprom); + + return 0; +} + +static int bcm43xx_channel_is_allowed(struct bcm43xx_private *bcm, u8 channel, + u8 *max_power, u8 *flags) +{ + /* THIS FUNCTION DOES _NOT_ ENFORCE REGULATORY DOMAIN COMPLIANCE. + * It is only a helper function to make life easier to + * select legal channels and transmission powers. + */ + + u8 phytype = bcm->current_core->phy->type; + int allowed = 0; + + *max_power = 0; + *flags = 0; + + //FIXME: Set max_power and maybe flags + /*FIXME: Allowed channels are sometimes different for outdoor + * or indoor use. See modparam_outdoor. + */ + /* From b specs Max Power BPHY: + * USA: 1000mW + * Europe: 100mW + * Japan: 10mW/MHz + */ + + switch (bcm->sprom.locale) { + case BCM43xx_LOCALE_WORLD: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 1 && channel <= 13) + allowed = 1; + } else { + if (channel >= 1 && channel <= 13) + allowed = 1; + } + break; + case BCM43xx_LOCALE_THAILAND: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 1 && channel <= 14) + allowed = 1; + } else { + if (channel >= 1 && channel <= 14) + allowed = 1; + } + break; + case BCM43xx_LOCALE_ISRAEL: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 5 && channel <= 7) + allowed = 1; + } else { + if (channel >= 5 && channel <= 7) + allowed = 1; + } + break; + case BCM43xx_LOCALE_JORDAN: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 10 && channel <= 13) + allowed = 1; + } else { + if (channel >= 10 && channel <= 13) + allowed = 1; + } + break; + case BCM43xx_LOCALE_CHINA: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 1 && channel <= 13) + allowed = 1; + } else { + if (channel >= 1 && channel <= 13) + allowed = 1; + } + break; + case BCM43xx_LOCALE_JAPAN: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + //FIXME: This seems to be wrong. + if (channel >= 1 && channel <= 14) + allowed = 1; + } else { + //FIXME: This seems to be wrong. + if (channel >= 1 && channel <= 14) + allowed = 1; + } + break; + case BCM43xx_LOCALE_USA_CANADA_ANZ: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 1 && channel <= 13) + allowed = 1; + } else { + if (channel >= 1 && channel <= 11) + allowed = 1; + } + break; + case BCM43xx_LOCALE_EUROPE: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 1 && channel <= 13) + allowed = 1; + } else { + if (channel >= 1 && channel <= 13) + allowed = 1; + } + break; + case BCM43xx_LOCALE_USA_LOW: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + if (channel >= 1 && channel <= 13) + allowed = 1; + } else { + if (channel >= 1 && channel <= 11) + allowed = 1; + } + break; + case BCM43xx_LOCALE_JAPAN_HIGH: + if (phytype == BCM43xx_PHYTYPE_A) { + allowed = 1;//FIXME + } else if (phytype == BCM43xx_PHYTYPE_B) { + //FIXME? + if (channel >= 1 && channel <= 14) + allowed = 1; + } else { + if (channel >= 1 && channel <= 14) + allowed = 1; + } + break; + case BCM43xx_LOCALE_ALL: + allowed = 1; + break; + case BCM43xx_LOCALE_NONE: + break; + default: + assert(0); + } + + return allowed; +} + +static void bcm43xx_geo_init(struct bcm43xx_private *bcm) +{ + struct ieee80211_geo geo; + struct ieee80211_channel *chan; + int have_a = 0, have_bg = 0; + int i, num80211; + u8 channel, flags, max_power; + struct bcm43xx_phyinfo *phy; + const char *iso_country; + + memset(&geo, 0, sizeof(geo)); + num80211 = bcm43xx_num_80211_cores(bcm); + for (i = 0; i < num80211; i++) { + phy = bcm->phy + i; + switch (phy->type) { + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + have_bg = 1; + break; + case BCM43xx_PHYTYPE_A: + have_a = 1; + break; + default: + assert(0); + } + } + iso_country = bcm43xx_locale_iso(bcm->sprom.locale); + + if (have_a) { + for (i = 0, channel = 0; channel < 201; channel++) { + if (!bcm43xx_channel_is_allowed(bcm, channel, + &max_power, &flags)) + continue; + chan = &geo.a[i++]; + chan->freq = bcm43xx_channel_to_freq(bcm, channel); + chan->channel = channel; + chan->flags = flags; + chan->max_power = max_power; + } + geo.a_channels = i; + } + if (have_bg) { + for (i = 0, channel = 1; channel < 15; channel++) { + if (!bcm43xx_channel_is_allowed(bcm, channel, + &max_power, &flags)) + continue; + chan = &geo.bg[i++]; + chan->freq = bcm43xx_channel_to_freq(bcm, channel); + chan->channel = channel; + chan->flags = flags; + chan->max_power = max_power; + } + geo.bg_channels = i; + } + memcpy(geo.name, iso_country, 2); + if (0 /*TODO: Outdoor use only */) + geo.name[2] = 'O'; + else if (0 /*TODO: Indoor use only */) + geo.name[2] = 'I'; + else + geo.name[2] = ' '; + geo.name[3] = '\0'; + + ieee80211_set_geo(bcm->ieee, &geo); +} + +/* DummyTransmission function, as documented on + * http://bcm-specs.sipsolutions.net/DummyTransmission + */ +void bcm43xx_dummy_transmission(struct bcm43xx_private *bcm) +{ + unsigned int i, max_loop; + u16 value = 0; + u32 buffer[5] = { + 0x00000000, + 0x0000D400, + 0x00000000, + 0x00000001, + 0x00000000, + }; + + switch (bcm->current_core->phy->type) { + case BCM43xx_PHYTYPE_A: + max_loop = 0x1E; + buffer[0] = 0xCC010200; + break; + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + max_loop = 0xFA; + buffer[0] = 0x6E840B00; + break; + default: + assert(0); + return; + } + + for (i = 0; i < 5; i++) + bcm43xx_ram_write(bcm, i * 4, buffer[i]); + + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */ + + bcm43xx_write16(bcm, 0x0568, 0x0000); + bcm43xx_write16(bcm, 0x07C0, 0x0000); + bcm43xx_write16(bcm, 0x050C, ((bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) ? 1 : 0)); + bcm43xx_write16(bcm, 0x0508, 0x0000); + bcm43xx_write16(bcm, 0x050A, 0x0000); + bcm43xx_write16(bcm, 0x054C, 0x0000); + bcm43xx_write16(bcm, 0x056A, 0x0014); + bcm43xx_write16(bcm, 0x0568, 0x0826); + bcm43xx_write16(bcm, 0x0500, 0x0000); + bcm43xx_write16(bcm, 0x0502, 0x0030); + + for (i = 0x00; i < max_loop; i++) { + value = bcm43xx_read16(bcm, 0x050E); + if ((value & 0x0080) != 0) + break; + udelay(10); + } + for (i = 0x00; i < 0x0A; i++) { + value = bcm43xx_read16(bcm, 0x050E); + if ((value & 0x0400) != 0) + break; + udelay(10); + } + for (i = 0x00; i < 0x0A; i++) { + value = bcm43xx_read16(bcm, 0x0690); + if ((value & 0x0100) == 0) + break; + udelay(10); + } +} + +static void key_write(struct bcm43xx_private *bcm, + u8 index, u8 algorithm, const u16 *key) +{ + unsigned int i, basic_wep = 0; + u32 offset; + u16 value; + + /* Write associated key information */ + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x100 + (index * 2), + ((index << 4) | (algorithm & 0x0F))); + + /* The first 4 WEP keys need extra love */ + if (((algorithm == BCM43xx_SEC_ALGO_WEP) || + (algorithm == BCM43xx_SEC_ALGO_WEP104)) && (index < 4)) + basic_wep = 1; + + /* Write key payload, 8 little endian words */ + offset = bcm->security_offset + (index * BCM43xx_SEC_KEYSIZE); + for (i = 0; i < (BCM43xx_SEC_KEYSIZE / sizeof(u16)); i++) { + value = cpu_to_le16(key[i]); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, + offset + (i * 2), value); + + if (!basic_wep) + continue; + + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, + offset + (i * 2) + 4 * BCM43xx_SEC_KEYSIZE, + value); + } +} + +static void keymac_write(struct bcm43xx_private *bcm, + u8 index, const u32 *addr) +{ + /* for keys 0-3 there is no associated mac address */ + if (index < 4) + return; + + index -= 4; + if (bcm->current_core->rev >= 5) { + bcm43xx_shm_write32(bcm, + BCM43xx_SHM_HWMAC, + index * 2, + cpu_to_be32(*addr)); + bcm43xx_shm_write16(bcm, + BCM43xx_SHM_HWMAC, + (index * 2) + 1, + cpu_to_be16(*((u16 *)(addr + 1)))); + } else { + if (index < 8) { + TODO(); /* Put them in the macaddress filter */ + } else { + TODO(); + /* Put them BCM43xx_SHM_SHARED, stating index 0x0120. + Keep in mind to update the count of keymacs in 0x003E as well! */ + } + } +} + +static int bcm43xx_key_write(struct bcm43xx_private *bcm, + u8 index, u8 algorithm, + const u8 *_key, int key_len, + const u8 *mac_addr) +{ + u8 key[BCM43xx_SEC_KEYSIZE] = { 0 }; + + if (index >= ARRAY_SIZE(bcm->key)) + return -EINVAL; + if (key_len > ARRAY_SIZE(key)) + return -EINVAL; + if (algorithm < 1 || algorithm > 5) + return -EINVAL; + + memcpy(key, _key, key_len); + key_write(bcm, index, algorithm, (const u16 *)key); + keymac_write(bcm, index, (const u32 *)mac_addr); + + bcm->key[index].algorithm = algorithm; + + return 0; +} + +static void bcm43xx_clear_keys(struct bcm43xx_private *bcm) +{ + static const u32 zero_mac[2] = { 0 }; + unsigned int i,j, nr_keys = 54; + u16 offset; + + if (bcm->current_core->rev < 5) + nr_keys = 16; + assert(nr_keys <= ARRAY_SIZE(bcm->key)); + + for (i = 0; i < nr_keys; i++) { + bcm->key[i].enabled = 0; + /* returns for i < 4 immediately */ + keymac_write(bcm, i, zero_mac); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, + 0x100 + (i * 2), 0x0000); + for (j = 0; j < 8; j++) { + offset = bcm->security_offset + (j * 4) + (i * BCM43xx_SEC_KEYSIZE); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, + offset, 0x0000); + } + } + dprintk(KERN_INFO PFX "Keys cleared\n"); +} + +/* Puts the index of the current core into user supplied core variable. + * This function reads the value from the device. + * Almost always you don't want to call this, but use bcm->current_core + */ +static inline +int _get_current_core(struct bcm43xx_private *bcm, int *core) +{ + int err; + + err = bcm43xx_pci_read_config32(bcm, BCM43xx_REG_ACTIVE_CORE, core); + if (unlikely(err)) { + dprintk(KERN_ERR PFX "BCM43xx_REG_ACTIVE_CORE read failed!\n"); + return -ENODEV; + } + *core = (*core - 0x18000000) / 0x1000; + + return 0; +} + +/* Lowlevel core-switch function. This is only to be used in + * bcm43xx_switch_core() and bcm43xx_probe_cores() + */ +static int _switch_core(struct bcm43xx_private *bcm, int core) +{ + int err; + int attempts = 0; + int current_core = -1; + + assert(core >= 0); + + err = _get_current_core(bcm, ¤t_core); + if (unlikely(err)) + goto out; + + /* Write the computed value to the register. This doesn't always + succeed so we retry BCM43xx_SWITCH_CORE_MAX_RETRIES times */ + while (current_core != core) { + if (unlikely(attempts++ > BCM43xx_SWITCH_CORE_MAX_RETRIES)) { + err = -ENODEV; + printk(KERN_ERR PFX + "unable to switch to core %u, retried %i times\n", + core, attempts); + goto out; + } + err = bcm43xx_pci_write_config32(bcm, BCM43xx_REG_ACTIVE_CORE, + (core * 0x1000) + 0x18000000); + if (unlikely(err)) { + dprintk(KERN_ERR PFX "BCM43xx_REG_ACTIVE_CORE write failed!\n"); + continue; + } + _get_current_core(bcm, ¤t_core); +#ifdef CONFIG_BCM947XX + if (bcm->pci_dev->bus->number == 0) + bcm->current_core_offset = 0x1000 * core; + else + bcm->current_core_offset = 0; +#endif + } + + assert(err == 0); +out: + return err; +} + +int bcm43xx_switch_core(struct bcm43xx_private *bcm, struct bcm43xx_coreinfo *new_core) +{ + int err; + + if (!new_core) + return 0; + + if (!(new_core->flags & BCM43xx_COREFLAG_AVAILABLE)) + return -ENODEV; + if (bcm->current_core == new_core) + return 0; + err = _switch_core(bcm, new_core->index); + if (!err) + bcm->current_core = new_core; + + return err; +} + +static inline int bcm43xx_core_enabled(struct bcm43xx_private *bcm) +{ + u32 value; + + value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + value &= BCM43xx_SBTMSTATELOW_CLOCK | BCM43xx_SBTMSTATELOW_RESET + | BCM43xx_SBTMSTATELOW_REJECT; + + return (value == BCM43xx_SBTMSTATELOW_CLOCK); +} + +/* disable current core */ +static int bcm43xx_core_disable(struct bcm43xx_private *bcm, u32 core_flags) +{ + u32 sbtmstatelow; + u32 sbtmstatehigh; + int i; + + /* fetch sbtmstatelow from core information registers */ + sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + + /* core is already in reset */ + if (sbtmstatelow & BCM43xx_SBTMSTATELOW_RESET) + goto out; + + if (sbtmstatelow & BCM43xx_SBTMSTATELOW_CLOCK) { + sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK | + BCM43xx_SBTMSTATELOW_REJECT; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + + for (i = 0; i < 1000; i++) { + sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + if (sbtmstatelow & BCM43xx_SBTMSTATELOW_REJECT) { + i = -1; + break; + } + udelay(10); + } + if (i != -1) { + printk(KERN_ERR PFX "Error: core_disable() REJECT timeout!\n"); + return -EBUSY; + } + + for (i = 0; i < 1000; i++) { + sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH); + if (!(sbtmstatehigh & BCM43xx_SBTMSTATEHIGH_BUSY)) { + i = -1; + break; + } + udelay(10); + } + if (i != -1) { + printk(KERN_ERR PFX "Error: core_disable() BUSY timeout!\n"); + return -EBUSY; + } + + sbtmstatelow = BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK | + BCM43xx_SBTMSTATELOW_REJECT | + BCM43xx_SBTMSTATELOW_RESET | + BCM43xx_SBTMSTATELOW_CLOCK | + core_flags; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + udelay(10); + } + + sbtmstatelow = BCM43xx_SBTMSTATELOW_RESET | + BCM43xx_SBTMSTATELOW_REJECT | + core_flags; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + +out: + bcm->current_core->flags &= ~ BCM43xx_COREFLAG_ENABLED; + return 0; +} + +/* enable (reset) current core */ +static int bcm43xx_core_enable(struct bcm43xx_private *bcm, u32 core_flags) +{ + u32 sbtmstatelow; + u32 sbtmstatehigh; + u32 sbimstate; + int err; + + err = bcm43xx_core_disable(bcm, core_flags); + if (err) + goto out; + + sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK | + BCM43xx_SBTMSTATELOW_RESET | + BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK | + core_flags; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + udelay(1); + + sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH); + if (sbtmstatehigh & BCM43xx_SBTMSTATEHIGH_SERROR) { + sbtmstatehigh = 0x00000000; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATEHIGH, sbtmstatehigh); + } + + sbimstate = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMSTATE); + if (sbimstate & (BCM43xx_SBIMSTATE_IB_ERROR | BCM43xx_SBIMSTATE_TIMEOUT)) { + sbimstate &= ~(BCM43xx_SBIMSTATE_IB_ERROR | BCM43xx_SBIMSTATE_TIMEOUT); + bcm43xx_write32(bcm, BCM43xx_CIR_SBIMSTATE, sbimstate); + } + + sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK | + BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK | + core_flags; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + udelay(1); + + sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK | core_flags; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + udelay(1); + + bcm->current_core->flags |= BCM43xx_COREFLAG_ENABLED; + assert(err == 0); +out: + return err; +} + +/* http://bcm-specs.sipsolutions.net/80211CoreReset */ +void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy) +{ + u32 flags = 0x00040000; + + if ((bcm43xx_core_enabled(bcm)) && (!bcm->pio_mode)) { +//FIXME: Do we _really_ want #ifndef CONFIG_BCM947XX here? +#ifndef CONFIG_BCM947XX + /* reset all used DMA controllers. */ + bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA1_BASE); + bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA2_BASE); + bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA3_BASE); + bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA4_BASE); + bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA1_BASE); + if (bcm->current_core->rev < 5) + bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA4_BASE); +#endif + } + if (bcm->shutting_down) { + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD) + & ~(BCM43xx_SBF_MAC_ENABLED | 0x00000002)); + } else { + if (connect_phy) + flags |= 0x20000000; + bcm43xx_phy_connect(bcm, connect_phy); + bcm43xx_core_enable(bcm, flags); + bcm43xx_write16(bcm, 0x03E6, 0x0000); + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD) + | BCM43xx_SBF_400); + } +} + +static void bcm43xx_wireless_core_disable(struct bcm43xx_private *bcm) +{ + bcm43xx_radio_turn_off(bcm); + bcm43xx_write16(bcm, 0x03E6, 0x00F4); + bcm43xx_core_disable(bcm, 0); +} + +/* Mark the current 80211 core inactive. + * "active_80211_core" is the other 80211 core, which is used. + */ +static int bcm43xx_wireless_core_mark_inactive(struct bcm43xx_private *bcm, + struct bcm43xx_coreinfo *active_80211_core) +{ + u32 sbtmstatelow; + struct bcm43xx_coreinfo *old_core; + int err = 0; + + bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL); + bcm43xx_radio_turn_off(bcm); + sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + sbtmstatelow &= ~0x200a0000; + sbtmstatelow |= 0xa0000; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + udelay(1); + sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + sbtmstatelow &= ~0xa0000; + sbtmstatelow |= 0x80000; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + udelay(1); + + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_G) { + old_core = bcm->current_core; + err = bcm43xx_switch_core(bcm, active_80211_core); + if (err) + goto out; + sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + sbtmstatelow &= ~0x20000000; + sbtmstatelow |= 0x20000000; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow); + err = bcm43xx_switch_core(bcm, old_core); + } + +out: + return err; +} + +static inline void handle_irq_transmit_status(struct bcm43xx_private *bcm) +{ + u32 v0, v1; + u16 tmp; + struct bcm43xx_xmitstatus stat; + + assert(bcm->current_core->id == BCM43xx_COREID_80211); + assert(bcm->current_core->rev >= 5); + + while (1) { + v0 = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_0); + if (!v0) + break; + v1 = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_1); + + stat.cookie = (v0 >> 16) & 0x0000FFFF; + tmp = (u16)((v0 & 0xFFF0) | ((v0 & 0xF) >> 1)); + stat.flags = tmp & 0xFF; + stat.cnt1 = (tmp & 0x0F00) >> 8; + stat.cnt2 = (tmp & 0xF000) >> 12; + stat.seq = (u16)(v1 & 0xFFFF); + stat.unknown = (u16)((v1 >> 16) & 0xFF); + + bcm43xx_debugfs_log_txstat(bcm, &stat); + + if (stat.flags & BCM43xx_TXSTAT_FLAG_IGNORE) + continue; + if (!(stat.flags & BCM43xx_TXSTAT_FLAG_ACK)) { + //TODO: packet was not acked (was lost) + } + //TODO: There are more (unknown) flags to test. see bcm43xx_main.h + + if (bcm->pio_mode) + bcm43xx_pio_handle_xmitstatus(bcm, &stat); + else + bcm43xx_dma_handle_xmitstatus(bcm, &stat); + } +} + +static inline void bcm43xx_generate_noise_sample(struct bcm43xx_private *bcm) +{ + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x408, 0x7F7F); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x40A, 0x7F7F); + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD) | (1 << 4)); + assert(bcm->noisecalc.core_at_start == bcm->current_core); + assert(bcm->noisecalc.channel_at_start == bcm->current_core->radio->channel); +} + +static void bcm43xx_calculate_link_quality(struct bcm43xx_private *bcm) +{ + /* Top half of Link Quality calculation. */ + + if (bcm->noisecalc.calculation_running) + return; + bcm->noisecalc.core_at_start = bcm->current_core; + bcm->noisecalc.channel_at_start = bcm->current_core->radio->channel; + bcm->noisecalc.calculation_running = 1; + bcm->noisecalc.nr_samples = 0; + + bcm43xx_generate_noise_sample(bcm); +} + +static inline void handle_irq_noise(struct bcm43xx_private *bcm) +{ + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + u16 tmp; + u8 noise[4]; + u8 i, j; + s32 average; + + /* Bottom half of Link Quality calculation. */ + + assert(bcm->noisecalc.calculation_running); + if (bcm->noisecalc.core_at_start != bcm->current_core || + bcm->noisecalc.channel_at_start != radio->channel) + goto drop_calculation; + tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x408); + noise[0] = (tmp & 0x00FF); + noise[1] = (tmp & 0xFF00) >> 8; + tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x40A); + noise[2] = (tmp & 0x00FF); + noise[3] = (tmp & 0xFF00) >> 8; + if (noise[0] == 0x7F || noise[1] == 0x7F || + noise[2] == 0x7F || noise[3] == 0x7F) + goto generate_new; + + /* Get the noise samples. */ + assert(bcm->noisecalc.nr_samples <= 8); + i = bcm->noisecalc.nr_samples; + noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(radio->nrssi_lt) - 1); + noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(radio->nrssi_lt) - 1); + noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(radio->nrssi_lt) - 1); + noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(radio->nrssi_lt) - 1); + bcm->noisecalc.samples[i][0] = radio->nrssi_lt[noise[0]]; + bcm->noisecalc.samples[i][1] = radio->nrssi_lt[noise[1]]; + bcm->noisecalc.samples[i][2] = radio->nrssi_lt[noise[2]]; + bcm->noisecalc.samples[i][3] = radio->nrssi_lt[noise[3]]; + bcm->noisecalc.nr_samples++; + if (bcm->noisecalc.nr_samples == 8) { + /* Calculate the Link Quality by the noise samples. */ + average = 0; + for (i = 0; i < 8; i++) { + for (j = 0; j < 4; j++) + average += bcm->noisecalc.samples[i][j]; + } + average /= (8 * 4); + average *= 125; + average += 64; + average /= 128; + tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x40C); + tmp = (tmp / 128) & 0x1F; + if (tmp >= 8) + average += 2; + else + average -= 25; + if (tmp == 8) + average -= 72; + else + average -= 48; + + if (average > -65) + bcm->stats.link_quality = 0; + else if (average > -75) + bcm->stats.link_quality = 1; + else if (average > -85) + bcm->stats.link_quality = 2; + else + bcm->stats.link_quality = 3; +// dprintk(KERN_INFO PFX "Link Quality: %u (avg was %d)\n", bcm->stats.link_quality, average); +drop_calculation: + bcm->noisecalc.calculation_running = 0; + return; + } +generate_new: + bcm43xx_generate_noise_sample(bcm); +} + +static inline +void handle_irq_ps(struct bcm43xx_private *bcm) +{ + if (bcm->ieee->iw_mode == IW_MODE_MASTER) { + ///TODO: PS TBTT + } else { + if (1/*FIXME: the last PSpoll frame was sent successfully */) + bcm43xx_power_saving_ctl_bits(bcm, -1, -1); + } + if (bcm->ieee->iw_mode == IW_MODE_ADHOC) + bcm->reg124_set_0x4 = 1; + //FIXME else set to false? +} + +static inline +void handle_irq_reg124(struct bcm43xx_private *bcm) +{ + if (!bcm->reg124_set_0x4) + return; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD) + | 0x4); + //FIXME: reset reg124_set_0x4 to false? +} + +static inline +void handle_irq_pmq(struct bcm43xx_private *bcm) +{ + u32 tmp; + + //TODO: AP mode. + + while (1) { + tmp = bcm43xx_read32(bcm, BCM43xx_MMIO_PS_STATUS); + if (!(tmp & 0x00000008)) + break; + } + /* 16bit write is odd, but correct. */ + bcm43xx_write16(bcm, BCM43xx_MMIO_PS_STATUS, 0x0002); +} + +static void bcm43xx_generate_beacon_template(struct bcm43xx_private *bcm, + u16 ram_offset, u16 shm_size_offset) +{ + u32 value; + u16 size = 0; + + /* Timestamp. */ + //FIXME: assumption: The chip sets the timestamp + value = 0; + bcm43xx_ram_write(bcm, ram_offset++, value); + bcm43xx_ram_write(bcm, ram_offset++, value); + size += 8; + + /* Beacon Interval / Capability Information */ + value = 0x0000;//FIXME: Which interval? + value |= (1 << 0) << 16; /* ESS */ + value |= (1 << 2) << 16; /* CF Pollable */ //FIXME? + value |= (1 << 3) << 16; /* CF Poll Request */ //FIXME? + if (!bcm->ieee->open_wep) + value |= (1 << 4) << 16; /* Privacy */ + bcm43xx_ram_write(bcm, ram_offset++, value); + size += 4; + + /* SSID */ + //TODO + + /* FH Parameter Set */ + //TODO + + /* DS Parameter Set */ + //TODO + + /* CF Parameter Set */ + //TODO + + /* TIM */ + //TODO + + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, shm_size_offset, size); +} + +static inline +void handle_irq_beacon(struct bcm43xx_private *bcm) +{ + u32 status; + + bcm->irq_savedstate &= ~BCM43xx_IRQ_BEACON; + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD); + + if ((status & 0x1) && (status & 0x2)) { + /* ACK beacon IRQ. */ + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, + BCM43xx_IRQ_BEACON); + bcm->irq_savedstate |= BCM43xx_IRQ_BEACON; + return; + } + if (!(status & 0x1)) { + bcm43xx_generate_beacon_template(bcm, 0x68, 0x18); + status |= 0x1; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, status); + } + if (!(status & 0x2)) { + bcm43xx_generate_beacon_template(bcm, 0x468, 0x1A); + status |= 0x2; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, status); + } +} + +/* Debug helper for irq bottom-half to print all reason registers. */ +#define bcmirq_print_reasons(description) \ + do { \ + dprintkl(KERN_ERR PFX description "\n" \ + KERN_ERR PFX " Generic Reason: 0x%08x\n" \ + KERN_ERR PFX " DMA reasons: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n" \ + KERN_ERR PFX " DMA TX status: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n", \ + reason, \ + dma_reason[0], dma_reason[1], \ + dma_reason[2], dma_reason[3], \ + bcm43xx_read32(bcm, BCM43xx_MMIO_DMA1_BASE + BCM43xx_DMA_TX_STATUS), \ + bcm43xx_read32(bcm, BCM43xx_MMIO_DMA2_BASE + BCM43xx_DMA_TX_STATUS), \ + bcm43xx_read32(bcm, BCM43xx_MMIO_DMA3_BASE + BCM43xx_DMA_TX_STATUS), \ + bcm43xx_read32(bcm, BCM43xx_MMIO_DMA4_BASE + BCM43xx_DMA_TX_STATUS)); \ + } while (0) + +/* Interrupt handler bottom-half */ +static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm) +{ + u32 reason; + u32 dma_reason[4]; + int activity = 0; + unsigned long flags; + +#ifdef CONFIG_BCM43XX_DEBUG + u32 _handled = 0x00000000; +# define bcmirq_handled(irq) do { _handled |= (irq); } while (0) +#else +# define bcmirq_handled(irq) do { /* nothing */ } while (0) +#endif /* CONFIG_BCM43XX_DEBUG*/ + + spin_lock_irqsave(&bcm->lock, flags); + reason = bcm->irq_reason; + dma_reason[0] = bcm->dma_reason[0]; + dma_reason[1] = bcm->dma_reason[1]; + dma_reason[2] = bcm->dma_reason[2]; + dma_reason[3] = bcm->dma_reason[3]; + + if (unlikely(reason & BCM43xx_IRQ_XMIT_ERROR)) { + /* TX error. We get this when Template Ram is written in wrong endianess + * in dummy_tx(). We also get this if something is wrong with the TX header + * on DMA or PIO queues. + * Maybe we get this in other error conditions, too. + */ + bcmirq_print_reasons("XMIT ERROR"); + bcmirq_handled(BCM43xx_IRQ_XMIT_ERROR); + } + + if (reason & BCM43xx_IRQ_PS) { + handle_irq_ps(bcm); + bcmirq_handled(BCM43xx_IRQ_PS); + } + + if (reason & BCM43xx_IRQ_REG124) { + handle_irq_reg124(bcm); + bcmirq_handled(BCM43xx_IRQ_REG124); + } + + if (reason & BCM43xx_IRQ_BEACON) { + if (bcm->ieee->iw_mode == IW_MODE_MASTER) + handle_irq_beacon(bcm); + bcmirq_handled(BCM43xx_IRQ_BEACON); + } + + if (reason & BCM43xx_IRQ_PMQ) { + handle_irq_pmq(bcm); + bcmirq_handled(BCM43xx_IRQ_PMQ); + } + + if (reason & BCM43xx_IRQ_SCAN) { + /*TODO*/ + //bcmirq_handled(BCM43xx_IRQ_SCAN); + } + + if (reason & BCM43xx_IRQ_NOISE) { + handle_irq_noise(bcm); + bcmirq_handled(BCM43xx_IRQ_NOISE); + } + + /* Check the DMA reason registers for received data. */ + assert(!(dma_reason[1] & BCM43xx_DMAIRQ_RX_DONE)); + assert(!(dma_reason[2] & BCM43xx_DMAIRQ_RX_DONE)); + if (dma_reason[0] & BCM43xx_DMAIRQ_RX_DONE) { + if (bcm->pio_mode) + bcm43xx_pio_rx(bcm->current_core->pio->queue0); + else + bcm43xx_dma_rx(bcm->current_core->dma->rx_ring0); + activity = 1; + } + if (dma_reason[3] & BCM43xx_DMAIRQ_RX_DONE) { + if (likely(bcm->current_core->rev < 5)) { + if (bcm->pio_mode) + bcm43xx_pio_rx(bcm->current_core->pio->queue3); + else + bcm43xx_dma_rx(bcm->current_core->dma->rx_ring1); + activity = 1; + } else + assert(0); + } + bcmirq_handled(BCM43xx_IRQ_RX); + + if (reason & BCM43xx_IRQ_XMIT_STATUS) { + if (bcm->current_core->rev >= 5) { + handle_irq_transmit_status(bcm); + activity = 1; + } + //TODO: In AP mode, this also causes sending of powersave responses. + bcmirq_handled(BCM43xx_IRQ_XMIT_STATUS); + } + + /* We get spurious IRQs, althought they are masked. + * Assume they are void and ignore them. + */ + bcmirq_handled(~(bcm->irq_savedstate)); + /* IRQ_PIO_WORKAROUND is handled in the top-half. */ + bcmirq_handled(BCM43xx_IRQ_PIO_WORKAROUND); +#ifdef CONFIG_BCM43XX_DEBUG + if (unlikely(reason & ~_handled)) { + printkl(KERN_WARNING PFX + "Unhandled IRQ! Reason: 0x%08x, Unhandled: 0x%08x, " + "DMA: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n", + reason, (reason & ~_handled), + dma_reason[0], dma_reason[1], + dma_reason[2], dma_reason[3]); + } +#endif +#undef bcmirq_handled + + if (!modparam_noleds) + bcm43xx_leds_update(bcm, activity); + bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate); + spin_unlock_irqrestore(&bcm->lock, flags); +} + +#undef bcmirq_print_reasons + +static inline +void bcm43xx_interrupt_ack(struct bcm43xx_private *bcm, + u32 reason, u32 mask) +{ + bcm->dma_reason[0] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA1_REASON) + & 0x0001dc00; + bcm->dma_reason[1] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA2_REASON) + & 0x0000dc00; + bcm->dma_reason[2] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA3_REASON) + & 0x0000dc00; + bcm->dma_reason[3] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA4_REASON) + & 0x0001dc00; + + if ((bcm->pio_mode) && + (bcm->current_core->rev < 3) && + (!(reason & BCM43xx_IRQ_PIO_WORKAROUND))) { + /* Apply a PIO specific workaround to the dma_reasons */ + +#define apply_pio_workaround(BASE, QNUM) \ + do { \ + if (bcm43xx_read16(bcm, BASE + BCM43xx_PIO_RXCTL) & BCM43xx_PIO_RXCTL_DATAAVAILABLE) \ + bcm->dma_reason[QNUM] |= 0x00010000; \ + else \ + bcm->dma_reason[QNUM] &= ~0x00010000; \ + } while (0) + + apply_pio_workaround(BCM43xx_MMIO_PIO1_BASE, 0); + apply_pio_workaround(BCM43xx_MMIO_PIO2_BASE, 1); + apply_pio_workaround(BCM43xx_MMIO_PIO3_BASE, 2); + apply_pio_workaround(BCM43xx_MMIO_PIO4_BASE, 3); + +#undef apply_pio_workaround + } + + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, + reason & mask); + + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_REASON, + bcm->dma_reason[0]); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA2_REASON, + bcm->dma_reason[1]); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA3_REASON, + bcm->dma_reason[2]); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA4_REASON, + bcm->dma_reason[3]); +} + +/* Interrupt handler top-half */ +static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_regs *regs) +{ + struct bcm43xx_private *bcm = dev_id; + u32 reason, mask; + + if (!bcm) + return IRQ_NONE; + + spin_lock(&bcm->lock); + + reason = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); + if (reason == 0xffffffff) { + /* irq not for us (shared irq) */ + spin_unlock(&bcm->lock); + return IRQ_NONE; + } + mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK); + if (!(reason & mask)) { + spin_unlock(&bcm->lock); + return IRQ_HANDLED; + } + + bcm43xx_interrupt_ack(bcm, reason, mask); + + /* disable all IRQs. They are enabled again in the bottom half. */ + bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL); + + /* save the reason code and call our bottom half. */ + bcm->irq_reason = reason; + tasklet_schedule(&bcm->isr_tasklet); + + spin_unlock(&bcm->lock); + + return IRQ_HANDLED; +} + +static void bcm43xx_release_firmware(struct bcm43xx_private *bcm) +{ + if (bcm->firmware_norelease) + return; /* Suspending or controller reset. */ + release_firmware(bcm->ucode); + bcm->ucode = NULL; + release_firmware(bcm->pcm); + bcm->pcm = NULL; + release_firmware(bcm->initvals0); + bcm->initvals0 = NULL; + release_firmware(bcm->initvals1); + bcm->initvals1 = NULL; +} + +static int bcm43xx_request_firmware(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + u8 rev = bcm->current_core->rev; + int err = 0; + int nr; + char buf[22 + sizeof(modparam_fwpostfix) - 1] = { 0 }; + + if (!bcm->ucode) { + snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_microcode%d%s.fw", + (rev >= 5 ? 5 : rev), + modparam_fwpostfix); + err = request_firmware(&bcm->ucode, buf, &bcm->pci_dev->dev); + if (err) { + printk(KERN_ERR PFX + "Error: Microcode \"%s\" not available or load failed.\n", + buf); + goto error; + } + } + + if (!bcm->pcm) { + snprintf(buf, ARRAY_SIZE(buf), + "bcm43xx_pcm%d%s.fw", + (rev < 5 ? 4 : 5), + modparam_fwpostfix); + err = request_firmware(&bcm->pcm, buf, &bcm->pci_dev->dev); + if (err) { + printk(KERN_ERR PFX + "Error: PCM \"%s\" not available or load failed.\n", + buf); + goto error; + } + } + + if (!bcm->initvals0) { + if (rev == 2 || rev == 4) { + switch (phy->type) { + case BCM43xx_PHYTYPE_A: + nr = 3; + break; + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + nr = 1; + break; + default: + goto err_noinitval; + } + + } else if (rev >= 5) { + switch (phy->type) { + case BCM43xx_PHYTYPE_A: + nr = 7; + break; + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + nr = 5; + break; + default: + goto err_noinitval; + } + } else + goto err_noinitval; + snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_initval%02d%s.fw", + nr, modparam_fwpostfix); + + err = request_firmware(&bcm->initvals0, buf, &bcm->pci_dev->dev); + if (err) { + printk(KERN_ERR PFX + "Error: InitVals \"%s\" not available or load failed.\n", + buf); + goto error; + } + if (bcm->initvals0->size % sizeof(struct bcm43xx_initval)) { + printk(KERN_ERR PFX "InitVals fileformat error.\n"); + goto error; + } + } + + if (!bcm->initvals1) { + if (rev >= 5) { + u32 sbtmstatehigh; + + switch (phy->type) { + case BCM43xx_PHYTYPE_A: + sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH); + if (sbtmstatehigh & 0x00010000) + nr = 9; + else + nr = 10; + break; + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + nr = 6; + break; + default: + goto err_noinitval; + } + snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_initval%02d%s.fw", + nr, modparam_fwpostfix); + + err = request_firmware(&bcm->initvals1, buf, &bcm->pci_dev->dev); + if (err) { + printk(KERN_ERR PFX + "Error: InitVals \"%s\" not available or load failed.\n", + buf); + goto error; + } + if (bcm->initvals1->size % sizeof(struct bcm43xx_initval)) { + printk(KERN_ERR PFX "InitVals fileformat error.\n"); + goto error; + } + } + } + +out: + return err; +error: + bcm43xx_release_firmware(bcm); + goto out; +err_noinitval: + printk(KERN_ERR PFX "Error: No InitVals available!\n"); + err = -ENOENT; + goto error; +} + +static void bcm43xx_upload_microcode(struct bcm43xx_private *bcm) +{ + const u32 *data; + unsigned int i, len; + +#ifdef DEBUG_ENABLE_UCODE_MMIO_PRINT + bcm43xx_mmioprint_enable(bcm); +#else + bcm43xx_mmioprint_disable(bcm); +#endif + + /* Upload Microcode. */ + data = (u32 *)(bcm->ucode->data); + len = bcm->ucode->size / sizeof(u32); + bcm43xx_shm_control_word(bcm, BCM43xx_SHM_UCODE, 0x0000); + for (i = 0; i < len; i++) { + bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, + be32_to_cpu(data[i])); + udelay(10); + } + + /* Upload PCM data. */ + data = (u32 *)(bcm->pcm->data); + len = bcm->pcm->size / sizeof(u32); + bcm43xx_shm_control_word(bcm, BCM43xx_SHM_PCM, 0x01ea); + bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, 0x00004000); + bcm43xx_shm_control_word(bcm, BCM43xx_SHM_PCM, 0x01eb); + for (i = 0; i < len; i++) { + bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, + be32_to_cpu(data[i])); + udelay(10); + } + +#ifdef DEBUG_ENABLE_UCODE_MMIO_PRINT + bcm43xx_mmioprint_disable(bcm); +#else + bcm43xx_mmioprint_enable(bcm); +#endif +} + +static void bcm43xx_write_initvals(struct bcm43xx_private *bcm, + const struct bcm43xx_initval *data, + const unsigned int len) +{ + u16 offset, size; + u32 value; + unsigned int i; + + for (i = 0; i < len; i++) { + offset = be16_to_cpu(data[i].offset); + size = be16_to_cpu(data[i].size); + value = be32_to_cpu(data[i].value); + + if (size == 2) + bcm43xx_write16(bcm, offset, value); + else if (size == 4) + bcm43xx_write32(bcm, offset, value); + else + printk(KERN_ERR PFX "InitVals fileformat error.\n"); + } +} + +static void bcm43xx_upload_initvals(struct bcm43xx_private *bcm) +{ +#ifdef DEBUG_ENABLE_UCODE_MMIO_PRINT + bcm43xx_mmioprint_enable(bcm); +#else + bcm43xx_mmioprint_disable(bcm); +#endif + + bcm43xx_write_initvals(bcm, (struct bcm43xx_initval *)bcm->initvals0->data, + bcm->initvals0->size / sizeof(struct bcm43xx_initval)); + if (bcm->initvals1) { + bcm43xx_write_initvals(bcm, (struct bcm43xx_initval *)bcm->initvals1->data, + bcm->initvals1->size / sizeof(struct bcm43xx_initval)); + } + +#ifdef DEBUG_ENABLE_UCODE_MMIO_PRINT + bcm43xx_mmioprint_disable(bcm); +#else + bcm43xx_mmioprint_enable(bcm); +#endif +} + +static int bcm43xx_initialize_irq(struct bcm43xx_private *bcm) +{ + int res; + unsigned int i; + u32 data; + + bcm->irq = bcm->pci_dev->irq; +#ifdef CONFIG_BCM947XX + if (bcm->pci_dev->bus->number == 0) { + struct pci_dev *d = NULL; + /* FIXME: we will probably need more device IDs here... */ + d = pci_find_device(PCI_VENDOR_ID_BROADCOM, 0x4324, NULL); + if (d != NULL) { + bcm->irq = d->irq; + } + } +#endif + res = request_irq(bcm->irq, bcm43xx_interrupt_handler, + SA_SHIRQ, DRV_NAME, bcm); + if (res) { + printk(KERN_ERR PFX "Cannot register IRQ%d\n", bcm->irq); + return -EFAULT; + } + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, 0xffffffff); + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, 0x00020402); + i = 0; + while (1) { + data = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); + if (data == BCM43xx_IRQ_READY) + break; + i++; + if (i >= BCM43xx_IRQWAIT_MAX_RETRIES) { + printk(KERN_ERR PFX "Card IRQ register not responding. " + "Giving up.\n"); + free_irq(bcm->irq, bcm); + return -ENODEV; + } + udelay(10); + } + // dummy read + bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); + + return 0; +} + +/* Switch to the core used to write the GPIO register. + * This is either the ChipCommon, or the PCI core. + */ +static inline int switch_to_gpio_core(struct bcm43xx_private *bcm) +{ + int err; + + /* Where to find the GPIO register depends on the chipset. + * If it has a ChipCommon, its register at offset 0x6c is the GPIO + * control register. Otherwise the register at offset 0x6c in the + * PCI core is the GPIO control register. + */ + err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon); + if (err == -ENODEV) { + err = bcm43xx_switch_core(bcm, &bcm->core_pci); + if (err == -ENODEV) { + printk(KERN_ERR PFX "gpio error: " + "Neither ChipCommon nor PCI core available!\n"); + return -ENODEV; + } else if (err != 0) + return -ENODEV; + } else if (err != 0) + return -ENODEV; + + return 0; +} + +/* Initialize the GPIOs + * http://bcm-specs.sipsolutions.net/GPIO + */ +static int bcm43xx_gpio_init(struct bcm43xx_private *bcm) +{ + struct bcm43xx_coreinfo *old_core; + int err; + u32 mask, value; + + value = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + value &= ~0xc000; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value); + + mask = 0x0000001F; + value = 0x0000000F; + bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, + bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL) & 0xFFF0); + bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK, + bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK) | 0x000F); + + old_core = bcm->current_core; + + err = switch_to_gpio_core(bcm); + if (err) + return err; + + if (bcm->current_core->rev >= 2){ + mask |= 0x10; + value |= 0x10; + } + if (bcm->chip_id == 0x4301) { + mask |= 0x60; + value |= 0x60; + } + if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL) { + mask |= 0x200; + value |= 0x200; + } + + bcm43xx_write32(bcm, BCM43xx_GPIO_CONTROL, + (bcm43xx_read32(bcm, BCM43xx_GPIO_CONTROL) & mask) | value); + + err = bcm43xx_switch_core(bcm, old_core); + assert(err == 0); + + return 0; +} + +/* Turn off all GPIO stuff. Call this on module unload, for example. */ +static int bcm43xx_gpio_cleanup(struct bcm43xx_private *bcm) +{ + struct bcm43xx_coreinfo *old_core; + int err; + + old_core = bcm->current_core; + err = switch_to_gpio_core(bcm); + if (err) + return err; + bcm43xx_write32(bcm, BCM43xx_GPIO_CONTROL, 0x00000000); + err = bcm43xx_switch_core(bcm, old_core); + assert(err == 0); + + return 0; +} + +/* http://bcm-specs.sipsolutions.net/EnableMac */ +void bcm43xx_mac_enable(struct bcm43xx_private *bcm) +{ + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD) + | BCM43xx_SBF_MAC_ENABLED); + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, BCM43xx_IRQ_READY); + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */ + bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */ + bcm43xx_power_saving_ctl_bits(bcm, -1, -1); +} + +/* http://bcm-specs.sipsolutions.net/SuspendMAC */ +void bcm43xx_mac_suspend(struct bcm43xx_private *bcm) +{ + int i; + u32 tmp; + + bcm43xx_power_saving_ctl_bits(bcm, -1, 1); + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, + bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD) + & ~BCM43xx_SBF_MAC_ENABLED); + bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */ + for (i = 1000; i > 0; i--) { + tmp = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); + if (tmp & BCM43xx_IRQ_READY) { + i = -1; + break; + } + udelay(10); + } + if (!i) + printkl(KERN_ERR PFX "Failed to suspend mac!\n"); +} + +void bcm43xx_set_iwmode(struct bcm43xx_private *bcm, + int iw_mode) +{ + unsigned long flags; + u32 status; + + spin_lock_irqsave(&bcm->ieee->lock, flags); + bcm->ieee->iw_mode = iw_mode; + spin_unlock_irqrestore(&bcm->ieee->lock, flags); + if (iw_mode == IW_MODE_MONITOR) + bcm->net_dev->type = ARPHRD_IEEE80211; + else + bcm->net_dev->type = ARPHRD_ETHER; + + if (!bcm->initialized) + return; + + bcm43xx_mac_suspend(bcm); + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + /* Reset status to infrastructured mode */ + status &= ~(BCM43xx_SBF_MODE_AP | BCM43xx_SBF_MODE_MONITOR); + /*FIXME: We actually set promiscuous mode as well, until we don't + * get the HW mac filter working */ + status |= BCM43xx_SBF_MODE_NOTADHOC | BCM43xx_SBF_MODE_PROMISC; + + switch (iw_mode) { + case IW_MODE_MONITOR: + status |= (BCM43xx_SBF_MODE_PROMISC | + BCM43xx_SBF_MODE_MONITOR); + break; + case IW_MODE_ADHOC: + status &= ~BCM43xx_SBF_MODE_NOTADHOC; + break; + case IW_MODE_MASTER: + case IW_MODE_SECOND: + case IW_MODE_REPEAT: + /* TODO: No AP/Repeater mode for now :-/ */ + TODO(); + break; + case IW_MODE_INFRA: + /* nothing to be done here... */ + break; + default: + printk(KERN_ERR PFX "Unknown iwmode %d\n", iw_mode); + } + + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status); + bcm43xx_mac_enable(bcm); +} + +/* This is the opposite of bcm43xx_chip_init() */ +static void bcm43xx_chip_cleanup(struct bcm43xx_private *bcm) +{ + bcm43xx_radio_turn_off(bcm); + if (!modparam_noleds) + bcm43xx_leds_exit(bcm); + bcm43xx_gpio_cleanup(bcm); + free_irq(bcm->irq, bcm); + bcm43xx_release_firmware(bcm); +} + +/* Initialize the chip + * http://bcm-specs.sipsolutions.net/ChipInit + */ +static int bcm43xx_chip_init(struct bcm43xx_private *bcm) +{ + int err; + int iw_mode = bcm->ieee->iw_mode; + int tmp; + u32 value32; + u16 value16; + + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, + BCM43xx_SBF_CORE_READY + | BCM43xx_SBF_400); + + err = bcm43xx_request_firmware(bcm); + if (err) + goto out; + bcm43xx_upload_microcode(bcm); + + err = bcm43xx_initialize_irq(bcm); + if (err) + goto out; + + err = bcm43xx_gpio_init(bcm); + if (err) + goto err_free_irq; + + bcm43xx_upload_initvals(bcm); + bcm43xx_radio_turn_on(bcm); + + if (modparam_noleds) + bcm43xx_leds_turn_off(bcm); + else + bcm43xx_leds_update(bcm, 0); + + bcm43xx_write16(bcm, 0x03E6, 0x0000); + err = bcm43xx_phy_init(bcm); + if (err) + goto err_radio_off; + + /* Select initial Interference Mitigation. */ + tmp = bcm->current_core->radio->interfmode; + bcm->current_core->radio->interfmode = BCM43xx_RADIO_INTERFMODE_NONE; + bcm43xx_radio_set_interference_mitigation(bcm, tmp); + + bcm43xx_phy_set_antenna_diversity(bcm); + bcm43xx_radio_set_txantenna(bcm, BCM43xx_RADIO_TXANTENNA_DEFAULT); + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_B) { + value16 = bcm43xx_read16(bcm, 0x005E); + value16 |= 0x0004; + bcm43xx_write16(bcm, 0x005E, value16); + } + bcm43xx_write32(bcm, 0x0100, 0x01000000); + if (bcm->current_core->rev < 5) + bcm43xx_write32(bcm, 0x010C, 0x01000000); + + value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + value32 &= ~ BCM43xx_SBF_MODE_NOTADHOC; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32); + value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + value32 |= BCM43xx_SBF_MODE_NOTADHOC; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32); + /*FIXME: For now, use promiscuous mode at all times; otherwise we don't + get broadcast or multicast packets */ + value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + value32 |= BCM43xx_SBF_MODE_PROMISC; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32); + + if (iw_mode == IW_MODE_MONITOR) { + value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + value32 |= BCM43xx_SBF_MODE_PROMISC; + value32 |= BCM43xx_SBF_MODE_MONITOR; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32); + } + value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + value32 |= 0x100000; //FIXME: What's this? Is this correct? + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32); + + if (bcm->pio_mode) { + bcm43xx_write32(bcm, 0x0210, 0x00000100); + bcm43xx_write32(bcm, 0x0230, 0x00000100); + bcm43xx_write32(bcm, 0x0250, 0x00000100); + bcm43xx_write32(bcm, 0x0270, 0x00000100); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0034, 0x0000); + } + + /* Probe Response Timeout value */ + /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0074, 0x0000); + + if (iw_mode != IW_MODE_ADHOC && iw_mode != IW_MODE_MASTER) { + if ((bcm->chip_id == 0x4306) && (bcm->chip_rev == 3)) + bcm43xx_write16(bcm, 0x0612, 0x0064); + else + bcm43xx_write16(bcm, 0x0612, 0x0032); + } else + bcm43xx_write16(bcm, 0x0612, 0x0002); + + if (bcm->current_core->rev < 3) { + bcm43xx_write16(bcm, 0x060E, 0x0000); + bcm43xx_write16(bcm, 0x0610, 0x8000); + bcm43xx_write16(bcm, 0x0604, 0x0000); + bcm43xx_write16(bcm, 0x0606, 0x0200); + } else { + bcm43xx_write32(bcm, 0x0188, 0x80000000); + bcm43xx_write32(bcm, 0x018C, 0x02000000); + } + bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, 0x00004000); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_IRQ_MASK, 0x0001DC00); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA2_IRQ_MASK, 0x0000DC00); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA3_IRQ_MASK, 0x0000DC00); + bcm43xx_write32(bcm, BCM43xx_MMIO_DMA4_IRQ_MASK, 0x0001DC00); + + value32 = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW); + value32 |= 0x00100000; + bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, value32); + + bcm43xx_write16(bcm, BCM43xx_MMIO_POWERUP_DELAY, bcm43xx_pctl_powerup_delay(bcm)); + + assert(err == 0); + dprintk(KERN_INFO PFX "Chip initialized\n"); +out: + return err; + +err_radio_off: + bcm43xx_radio_turn_off(bcm); + bcm43xx_gpio_cleanup(bcm); +err_free_irq: + free_irq(bcm->irq, bcm); + goto out; +} + +/* Validate chip access + * http://bcm-specs.sipsolutions.net/ValidateChipAccess */ +static int bcm43xx_validate_chip(struct bcm43xx_private *bcm) +{ + int err = -ENODEV; + u32 value; + u32 shm_backup; + + shm_backup = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000); + bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, 0xAA5555AA); + if (bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000) != 0xAA5555AA) { + printk(KERN_ERR PFX "Error: SHM mismatch (1) validating chip\n"); + goto out; + } + + bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, 0x55AAAA55); + if (bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000) != 0x55AAAA55) { + printk(KERN_ERR PFX "Error: SHM mismatch (2) validating chip\n"); + goto out; + } + + bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, shm_backup); + + value = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + if ((value | 0x80000000) != 0x80000400) { + printk(KERN_ERR PFX "Error: Bad Status Bitfield while validating chip\n"); + goto out; + } + + value = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); + if (value != 0x00000000) { + printk(KERN_ERR PFX "Error: Bad interrupt reason code while validating chip\n"); + goto out; + } + + err = 0; +out: + return err; +} + +static int bcm43xx_probe_cores(struct bcm43xx_private *bcm) +{ + int err, i; + int current_core; + u32 core_vendor, core_id, core_rev; + u32 sb_id_hi, chip_id_32 = 0; + u16 pci_device, chip_id_16; + u8 core_count; + + memset(&bcm->core_chipcommon, 0, sizeof(struct bcm43xx_coreinfo)); + memset(&bcm->core_pci, 0, sizeof(struct bcm43xx_coreinfo)); + memset(&bcm->core_v90, 0, sizeof(struct bcm43xx_coreinfo)); + memset(&bcm->core_pcmcia, 0, sizeof(struct bcm43xx_coreinfo)); + memset(&bcm->core_80211, 0, sizeof(struct bcm43xx_coreinfo) + * BCM43xx_MAX_80211_CORES); + + memset(&bcm->phy, 0, sizeof(struct bcm43xx_phyinfo) + * BCM43xx_MAX_80211_CORES); + memset(&bcm->radio, 0, sizeof(struct bcm43xx_radioinfo) + * BCM43xx_MAX_80211_CORES); + + /* map core 0 */ + err = _switch_core(bcm, 0); + if (err) + goto out; + + /* fetch sb_id_hi from core information registers */ + sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI); + + core_id = (sb_id_hi & 0xFFF0) >> 4; + core_rev = (sb_id_hi & 0xF); + core_vendor = (sb_id_hi & 0xFFFF0000) >> 16; + + /* if present, chipcommon is always core 0; read the chipid from it */ + if (core_id == BCM43xx_COREID_CHIPCOMMON) { + chip_id_32 = bcm43xx_read32(bcm, 0); + chip_id_16 = chip_id_32 & 0xFFFF; + bcm->core_chipcommon.flags |= BCM43xx_COREFLAG_AVAILABLE; + bcm->core_chipcommon.id = core_id; + bcm->core_chipcommon.rev = core_rev; + bcm->core_chipcommon.index = 0; + /* While we are at it, also read the capabilities. */ + bcm->chipcommon_capabilities = bcm43xx_read32(bcm, BCM43xx_CHIPCOMMON_CAPABILITIES); + } else { + /* without a chipCommon, use a hard coded table. */ + pci_device = bcm->pci_dev->device; + if (pci_device == 0x4301) + chip_id_16 = 0x4301; + else if ((pci_device >= 0x4305) && (pci_device <= 0x4307)) + chip_id_16 = 0x4307; + else if ((pci_device >= 0x4402) && (pci_device <= 0x4403)) + chip_id_16 = 0x4402; + else if ((pci_device >= 0x4610) && (pci_device <= 0x4615)) + chip_id_16 = 0x4610; + else if ((pci_device >= 0x4710) && (pci_device <= 0x4715)) + chip_id_16 = 0x4710; +#ifdef CONFIG_BCM947XX + else if ((pci_device >= 0x4320) && (pci_device <= 0x4325)) + chip_id_16 = 0x4309; +#endif + else { + printk(KERN_ERR PFX "Could not determine Chip ID\n"); + return -ENODEV; + } + } + + /* ChipCommon with Core Rev >=4 encodes number of cores, + * otherwise consult hardcoded table */ + if ((core_id == BCM43xx_COREID_CHIPCOMMON) && (core_rev >= 4)) { + core_count = (chip_id_32 & 0x0F000000) >> 24; + } else { + switch (chip_id_16) { + case 0x4610: + case 0x4704: + case 0x4710: + core_count = 9; + break; + case 0x4310: + core_count = 8; + break; + case 0x5365: + core_count = 7; + break; + case 0x4306: + core_count = 6; + break; + case 0x4301: + case 0x4307: + core_count = 5; + break; + case 0x4402: + core_count = 3; + break; + default: + /* SOL if we get here */ + assert(0); + core_count = 1; + } + } + + bcm->chip_id = chip_id_16; + bcm->chip_rev = (chip_id_32 & 0x000f0000) >> 16; + + dprintk(KERN_INFO PFX "Chip ID 0x%x, rev 0x%x\n", + bcm->chip_id, bcm->chip_rev); + dprintk(KERN_INFO PFX "Number of cores: %d\n", core_count); + if (bcm->core_chipcommon.flags & BCM43xx_COREFLAG_AVAILABLE) { + dprintk(KERN_INFO PFX "Core 0: ID 0x%x, rev 0x%x, vendor 0x%x, %s\n", + core_id, core_rev, core_vendor, + bcm43xx_core_enabled(bcm) ? "enabled" : "disabled"); + } + + if (bcm->core_chipcommon.flags & BCM43xx_COREFLAG_AVAILABLE) + current_core = 1; + else + current_core = 0; + for ( ; current_core < core_count; current_core++) { + struct bcm43xx_coreinfo *core; + + err = _switch_core(bcm, current_core); + if (err) + goto out; + /* Gather information */ + /* fetch sb_id_hi from core information registers */ + sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI); + + /* extract core_id, core_rev, core_vendor */ + core_id = (sb_id_hi & 0xFFF0) >> 4; + core_rev = (sb_id_hi & 0xF); + core_vendor = (sb_id_hi & 0xFFFF0000) >> 16; + + dprintk(KERN_INFO PFX "Core %d: ID 0x%x, rev 0x%x, vendor 0x%x, %s\n", + current_core, core_id, core_rev, core_vendor, + bcm43xx_core_enabled(bcm) ? "enabled" : "disabled" ); + + core = NULL; + switch (core_id) { + case BCM43xx_COREID_PCI: + core = &bcm->core_pci; + if (core->flags & BCM43xx_COREFLAG_AVAILABLE) { + printk(KERN_WARNING PFX "Multiple PCI cores found.\n"); + continue; + } + break; + case BCM43xx_COREID_V90: + core = &bcm->core_v90; + if (core->flags & BCM43xx_COREFLAG_AVAILABLE) { + printk(KERN_WARNING PFX "Multiple V90 cores found.\n"); + continue; + } + break; + case BCM43xx_COREID_PCMCIA: + core = &bcm->core_pcmcia; + if (core->flags & BCM43xx_COREFLAG_AVAILABLE) { + printk(KERN_WARNING PFX "Multiple PCMCIA cores found.\n"); + continue; + } + break; + case BCM43xx_COREID_ETHERNET: + core = &bcm->core_ethernet; + if (core->flags & BCM43xx_COREFLAG_AVAILABLE) { + printk(KERN_WARNING PFX "Multiple Ethernet cores found.\n"); + continue; + } + break; + case BCM43xx_COREID_80211: + for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) { + core = &(bcm->core_80211[i]); + if (!(core->flags & BCM43xx_COREFLAG_AVAILABLE)) + break; + core = NULL; + } + if (!core) { + printk(KERN_WARNING PFX "More than %d cores of type 802.11 found.\n", + BCM43xx_MAX_80211_CORES); + continue; + } + if (i != 0) { + /* More than one 80211 core is only supported + * by special chips. + * There are chips with two 80211 cores, but with + * dangling pins on the second core. Be careful + * and ignore these cores here. + */ + if (bcm->pci_dev->device != 0x4324) { + dprintk(KERN_INFO PFX "Ignoring additional 802.11 core.\n"); + continue; + } + } + switch (core_rev) { + case 2: + case 4: + case 5: + case 6: + case 7: + case 9: + break; + default: + printk(KERN_ERR PFX "Error: Unsupported 80211 core revision %u\n", + core_rev); + err = -ENODEV; + goto out; + } + core->phy = &bcm->phy[i]; + core->phy->antenna_diversity = 0xffff; + core->phy->savedpctlreg = 0xFFFF; + core->phy->minlowsig[0] = 0xFFFF; + core->phy->minlowsig[1] = 0xFFFF; + core->phy->minlowsigpos[0] = 0; + core->phy->minlowsigpos[1] = 0; + spin_lock_init(&core->phy->lock); + core->radio = &bcm->radio[i]; + core->radio->interfmode = BCM43xx_RADIO_INTERFMODE_AUTOWLAN; + core->radio->channel = 0xFF; + core->radio->initial_channel = 0xFF; + core->radio->lofcal = 0xFFFF; + core->radio->initval = 0xFFFF; + core->radio->nrssi[0] = -1000; + core->radio->nrssi[1] = -1000; + core->dma = &bcm->dma[i]; + core->pio = &bcm->pio[i]; + break; + case BCM43xx_COREID_CHIPCOMMON: + printk(KERN_WARNING PFX "Multiple CHIPCOMMON cores found.\n"); + break; + default: + printk(KERN_WARNING PFX "Unknown core found (ID 0x%x)\n", core_id); + } + if (core) { + core->flags |= BCM43xx_COREFLAG_AVAILABLE; + core->id = core_id; + core->rev = core_rev; + core->index = current_core; + } + } + + if (!(bcm->core_80211[0].flags & BCM43xx_COREFLAG_AVAILABLE)) { + printk(KERN_ERR PFX "Error: No 80211 core found!\n"); + err = -ENODEV; + goto out; + } + + err = bcm43xx_switch_core(bcm, &bcm->core_80211[0]); + + assert(err == 0); +out: + return err; +} + +static void bcm43xx_gen_bssid(struct bcm43xx_private *bcm) +{ + const u8 *mac = (const u8*)(bcm->net_dev->dev_addr); + u8 *bssid = bcm->ieee->bssid; + + switch (bcm->ieee->iw_mode) { + case IW_MODE_ADHOC: + random_ether_addr(bssid); + break; + case IW_MODE_MASTER: + case IW_MODE_INFRA: + case IW_MODE_REPEAT: + case IW_MODE_SECOND: + case IW_MODE_MONITOR: + memcpy(bssid, mac, ETH_ALEN); + break; + default: + assert(0); + } +} + +static void bcm43xx_rate_memory_write(struct bcm43xx_private *bcm, + u16 rate, + int is_ofdm) +{ + u16 offset; + + if (is_ofdm) { + offset = 0x480; + offset += (bcm43xx_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; + } + else { + offset = 0x4C0; + offset += (bcm43xx_plcp_get_ratecode_cck(rate) & 0x000F) * 2; + } + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, offset + 0x20, + bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, offset)); +} + +static void bcm43xx_rate_memory_init(struct bcm43xx_private *bcm) +{ + switch (bcm->current_core->phy->type) { + case BCM43xx_PHYTYPE_A: + case BCM43xx_PHYTYPE_G: + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_6MB, 1); + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_12MB, 1); + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_18MB, 1); + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_24MB, 1); + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_36MB, 1); + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_48MB, 1); + bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_54MB, 1); + case BCM43xx_PHYTYPE_B: + bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_1MB, 0); + bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_2MB, 0); + bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_5MB, 0); + bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_11MB, 0); + break; + default: + assert(0); + } +} + +static void bcm43xx_wireless_core_cleanup(struct bcm43xx_private *bcm) +{ + bcm43xx_chip_cleanup(bcm); + bcm43xx_pio_free(bcm); + bcm43xx_dma_free(bcm); + + bcm->current_core->flags &= ~ BCM43xx_COREFLAG_INITIALIZED; +} + +/* http://bcm-specs.sipsolutions.net/80211Init */ +static int bcm43xx_wireless_core_init(struct bcm43xx_private *bcm) +{ + u32 ucodeflags; + int err; + u32 sbimconfiglow; + u8 limit; + + if (bcm->chip_rev < 5) { + sbimconfiglow = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW); + sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK; + sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK; + if (bcm->bustype == BCM43xx_BUSTYPE_PCI) + sbimconfiglow |= 0x32; + else if (bcm->bustype == BCM43xx_BUSTYPE_SB) + sbimconfiglow |= 0x53; + else + assert(0); + bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, sbimconfiglow); + } + + bcm43xx_phy_calibrate(bcm); + err = bcm43xx_chip_init(bcm); + if (err) + goto out; + + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0016, bcm->current_core->rev); + ucodeflags = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, BCM43xx_UCODEFLAGS_OFFSET); + + if (0 /*FIXME: which condition has to be used here? */) + ucodeflags |= 0x00000010; + + /* HW decryption needs to be set now */ + ucodeflags |= 0x40000000; + + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_G) { + ucodeflags |= BCM43xx_UCODEFLAG_UNKBGPHY; + if (bcm->current_core->phy->rev == 1) + ucodeflags |= BCM43xx_UCODEFLAG_UNKGPHY; + if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL) + ucodeflags |= BCM43xx_UCODEFLAG_UNKPACTRL; + } else if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_B) { + ucodeflags |= BCM43xx_UCODEFLAG_UNKBGPHY; + if ((bcm->current_core->phy->rev >= 2) && + (bcm->current_core->radio->version == 0x2050)) + ucodeflags &= ~BCM43xx_UCODEFLAG_UNKGPHY; + } + + if (ucodeflags != bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, + BCM43xx_UCODEFLAGS_OFFSET)) { + bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, + BCM43xx_UCODEFLAGS_OFFSET, ucodeflags); + } + + /* Short/Long Retry Limit. + * The retry-limit is a 4-bit counter. Enforce this to avoid overflowing + * the chip-internal counter. + */ + limit = limit_value(modparam_short_retry, 0, 0xF); + bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0006, limit); + limit = limit_value(modparam_long_retry, 0, 0xF); + bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0007, limit); + + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0044, 3); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0046, 2); + + bcm43xx_rate_memory_init(bcm); + + /* Minimum Contention Window */ + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_B) + bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0003, 0x0000001f); + else + bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0003, 0x0000000f); + /* Maximum Contention Window */ + bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0004, 0x000003ff); + + bcm43xx_gen_bssid(bcm); + bcm43xx_write_mac_bssid_templates(bcm); + + if (bcm->current_core->rev >= 5) + bcm43xx_write16(bcm, 0x043C, 0x000C); + + if (!bcm->pio_mode) { + err = bcm43xx_dma_init(bcm); + if (err) + goto err_chip_cleanup; + } else { + err = bcm43xx_pio_init(bcm); + if (err) + goto err_chip_cleanup; + } + bcm43xx_write16(bcm, 0x0612, 0x0050); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0416, 0x0050); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0414, 0x01F4); + + bcm43xx_mac_enable(bcm); + bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate); + + bcm->current_core->flags |= BCM43xx_COREFLAG_INITIALIZED; +out: + return err; + +err_chip_cleanup: + bcm43xx_chip_cleanup(bcm); + goto out; +} + +static int bcm43xx_chipset_attach(struct bcm43xx_private *bcm) +{ + int err; + u16 pci_status; + + err = bcm43xx_pctl_set_crystal(bcm, 1); + if (err) + goto out; + bcm43xx_pci_read_config16(bcm, PCI_STATUS, &pci_status); + bcm43xx_pci_write_config16(bcm, PCI_STATUS, pci_status & ~PCI_STATUS_SIG_TARGET_ABORT); + +out: + return err; +} + +static void bcm43xx_chipset_detach(struct bcm43xx_private *bcm) +{ + bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_SLOW); + bcm43xx_pctl_set_crystal(bcm, 0); +} + +static inline void bcm43xx_pcicore_broadcast_value(struct bcm43xx_private *bcm, + u32 address, + u32 data) +{ + bcm43xx_write32(bcm, BCM43xx_PCICORE_BCAST_ADDR, address); + bcm43xx_write32(bcm, BCM43xx_PCICORE_BCAST_DATA, data); +} + +static int bcm43xx_pcicore_commit_settings(struct bcm43xx_private *bcm) +{ + int err; + struct bcm43xx_coreinfo *old_core; + + old_core = bcm->current_core; + err = bcm43xx_switch_core(bcm, &bcm->core_pci); + if (err) + goto out; + + bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000); + + bcm43xx_switch_core(bcm, old_core); + assert(err == 0); +out: + return err; +} + +/* Make an I/O Core usable. "core_mask" is the bitmask of the cores to enable. + * To enable core 0, pass a core_mask of 1<<0 + */ +static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm, + u32 core_mask) +{ + u32 backplane_flag_nr; + u32 value; + struct bcm43xx_coreinfo *old_core; + int err = 0; + + value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTPSFLAG); + backplane_flag_nr = value & BCM43xx_BACKPLANE_FLAG_NR_MASK; + + old_core = bcm->current_core; + err = bcm43xx_switch_core(bcm, &bcm->core_pci); + if (err) + goto out; + + if (bcm->core_pci.rev < 6) { + value = bcm43xx_read32(bcm, BCM43xx_CIR_SBINTVEC); + value |= (1 << backplane_flag_nr); + bcm43xx_write32(bcm, BCM43xx_CIR_SBINTVEC, value); + } else { + err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_ICR, &value); + if (err) { + printk(KERN_ERR PFX "Error: ICR setup failure!\n"); + goto out_switch_back; + } + value |= core_mask << 8; + err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_ICR, value); + if (err) { + printk(KERN_ERR PFX "Error: ICR setup failure!\n"); + goto out_switch_back; + } + } + + value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2); + value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST; + bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value); + + if (bcm->core_pci.rev < 5) { + value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW); + value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT) + & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK; + value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT) + & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK; + bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value); + err = bcm43xx_pcicore_commit_settings(bcm); + assert(err == 0); + } + +out_switch_back: + err = bcm43xx_switch_core(bcm, old_core); +out: + return err; +} + +static void bcm43xx_softmac_init(struct bcm43xx_private *bcm) +{ + ieee80211softmac_start(bcm->net_dev); +} + +static void bcm43xx_periodic_work0_handler(void *d) +{ + struct bcm43xx_private *bcm = d; + unsigned long flags; + //TODO: unsigned int aci_average; + + spin_lock_irqsave(&bcm->lock, flags); + + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_G) { + //FIXME: aci_average = bcm43xx_update_aci_average(bcm); + if (bcm->current_core->radio->aci_enable && bcm->current_core->radio->aci_wlan_automatic) { + bcm43xx_mac_suspend(bcm); + if (!bcm->current_core->radio->aci_enable && + 1 /*FIXME: We are not scanning? */) { + /*FIXME: First add bcm43xx_update_aci_average() before + * uncommenting this: */ + //if (bcm43xx_radio_aci_scan) + // bcm43xx_radio_set_interference_mitigation(bcm, + // BCM43xx_RADIO_INTERFMODE_MANUALWLAN); + } else if (1/*FIXME*/) { + //if ((aci_average > 1000) && !(bcm43xx_radio_aci_scan(bcm))) + // bcm43xx_radio_set_interference_mitigation(bcm, + // BCM43xx_RADIO_INTERFMODE_MANUALWLAN); + } + bcm43xx_mac_enable(bcm); + } else if (bcm->current_core->radio->interfmode == BCM43xx_RADIO_INTERFMODE_NONWLAN) { + if (bcm->current_core->phy->rev == 1) { + //FIXME: implement rev1 workaround + } + } + } + bcm43xx_phy_xmitpower(bcm); //FIXME: unless scanning? + //TODO for APHY (temperature?) + + if (likely(!bcm->shutting_down)) { + queue_delayed_work(bcm->workqueue, &bcm->periodic_work0, + BCM43xx_PERIODIC_0_DELAY); + } + spin_unlock_irqrestore(&bcm->lock, flags); +} + +static void bcm43xx_periodic_work1_handler(void *d) +{ + struct bcm43xx_private *bcm = d; + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + + bcm43xx_phy_lo_mark_all_unused(bcm); + if (bcm->sprom.boardflags & BCM43xx_BFL_RSSI) { + bcm43xx_mac_suspend(bcm); + bcm43xx_calc_nrssi_slope(bcm); + bcm43xx_mac_enable(bcm); + } + + if (likely(!bcm->shutting_down)) { + queue_delayed_work(bcm->workqueue, &bcm->periodic_work1, + BCM43xx_PERIODIC_1_DELAY); + } + spin_unlock_irqrestore(&bcm->lock, flags); +} + +static void bcm43xx_periodic_work2_handler(void *d) +{ + struct bcm43xx_private *bcm = d; + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + + assert(bcm->current_core->phy->type == BCM43xx_PHYTYPE_G); + assert(bcm->current_core->phy->rev >= 2); + + bcm43xx_mac_suspend(bcm); + bcm43xx_phy_lo_g_measure(bcm); + bcm43xx_mac_enable(bcm); + + if (likely(!bcm->shutting_down)) { + queue_delayed_work(bcm->workqueue, &bcm->periodic_work2, + BCM43xx_PERIODIC_2_DELAY); + } + spin_unlock_irqrestore(&bcm->lock, flags); +} + +static void bcm43xx_periodic_work3_handler(void *d) +{ + struct bcm43xx_private *bcm = d; + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + + /* Update device statistics. */ + bcm43xx_calculate_link_quality(bcm); + + if (likely(!bcm->shutting_down)) { + queue_delayed_work(bcm->workqueue, &bcm->periodic_work3, + BCM43xx_PERIODIC_3_DELAY); + } + spin_unlock_irqrestore(&bcm->lock, flags); +} + +/* Delete all periodic tasks and make + * sure they are not running any longer + */ +static void bcm43xx_periodic_tasks_delete(struct bcm43xx_private *bcm) +{ + cancel_delayed_work(&bcm->periodic_work0); + cancel_delayed_work(&bcm->periodic_work1); + cancel_delayed_work(&bcm->periodic_work2); + cancel_delayed_work(&bcm->periodic_work3); + flush_workqueue(bcm->workqueue); +} + +/* Setup all periodic tasks. */ +static void bcm43xx_periodic_tasks_setup(struct bcm43xx_private *bcm) +{ + INIT_WORK(&bcm->periodic_work0, bcm43xx_periodic_work0_handler, bcm); + INIT_WORK(&bcm->periodic_work1, bcm43xx_periodic_work1_handler, bcm); + INIT_WORK(&bcm->periodic_work2, bcm43xx_periodic_work2_handler, bcm); + INIT_WORK(&bcm->periodic_work3, bcm43xx_periodic_work3_handler, bcm); + + /* Periodic task 0: Delay ~15sec */ + queue_delayed_work(bcm->workqueue, &bcm->periodic_work0, + BCM43xx_PERIODIC_0_DELAY); + + /* Periodic task 1: Delay ~60sec */ + queue_delayed_work(bcm->workqueue, &bcm->periodic_work1, + BCM43xx_PERIODIC_1_DELAY); + + /* Periodic task 2: Delay ~120sec */ + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_G && + bcm->current_core->phy->rev >= 2) { + queue_delayed_work(bcm->workqueue, &bcm->periodic_work2, + BCM43xx_PERIODIC_2_DELAY); + } + + /* Periodic task 3: Delay ~30sec */ + queue_delayed_work(bcm->workqueue, &bcm->periodic_work3, + BCM43xx_PERIODIC_3_DELAY); +} + +static void bcm43xx_security_init(struct bcm43xx_private *bcm) +{ + bcm->security_offset = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, + 0x0056) * 2; + bcm43xx_clear_keys(bcm); +} + +/* This is the opposite of bcm43xx_init_board() */ +static void bcm43xx_free_board(struct bcm43xx_private *bcm) +{ + int i, err; + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + bcm->initialized = 0; + bcm->shutting_down = 1; + spin_unlock_irqrestore(&bcm->lock, flags); + + bcm43xx_periodic_tasks_delete(bcm); + + for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) { + if (!(bcm->core_80211[i].flags & BCM43xx_COREFLAG_AVAILABLE)) + continue; + if (!(bcm->core_80211[i].flags & BCM43xx_COREFLAG_INITIALIZED)) + continue; + + err = bcm43xx_switch_core(bcm, &bcm->core_80211[i]); + assert(err == 0); + bcm43xx_wireless_core_cleanup(bcm); + } + + bcm43xx_pctl_set_crystal(bcm, 0); + + spin_lock_irqsave(&bcm->lock, flags); + bcm->shutting_down = 0; + spin_unlock_irqrestore(&bcm->lock, flags); +} + +static int bcm43xx_init_board(struct bcm43xx_private *bcm) +{ + int i, err; + int num_80211_cores; + int connect_phy; + unsigned long flags; + + might_sleep(); + + spin_lock_irqsave(&bcm->lock, flags); + bcm->initialized = 0; + bcm->shutting_down = 0; + spin_unlock_irqrestore(&bcm->lock, flags); + + err = bcm43xx_pctl_set_crystal(bcm, 1); + if (err) + goto out; + err = bcm43xx_pctl_init(bcm); + if (err) + goto err_crystal_off; + err = bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_FAST); + if (err) + goto err_crystal_off; + + tasklet_enable(&bcm->isr_tasklet); + num_80211_cores = bcm43xx_num_80211_cores(bcm); + for (i = 0; i < num_80211_cores; i++) { + err = bcm43xx_switch_core(bcm, &bcm->core_80211[i]); + assert(err != -ENODEV); + if (err) + goto err_80211_unwind; + + /* Enable the selected wireless core. + * Connect PHY only on the first core. + */ + if (!bcm43xx_core_enabled(bcm)) { + if (num_80211_cores == 1) { + connect_phy = bcm->current_core->phy->connected; + } else { + if (i == 0) + connect_phy = 1; + else + connect_phy = 0; + } + bcm43xx_wireless_core_reset(bcm, connect_phy); + } + + if (i != 0) + bcm43xx_wireless_core_mark_inactive(bcm, &bcm->core_80211[0]); + + err = bcm43xx_wireless_core_init(bcm); + if (err) + goto err_80211_unwind; + + if (i != 0) { + bcm43xx_mac_suspend(bcm); + bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL); + bcm43xx_radio_turn_off(bcm); + } + } + bcm->active_80211_core = &bcm->core_80211[0]; + if (num_80211_cores >= 2) { + bcm43xx_switch_core(bcm, &bcm->core_80211[0]); + bcm43xx_mac_enable(bcm); + } + bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC); + bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_SELF, (u8 *)(bcm->net_dev->dev_addr)); + dprintk(KERN_INFO PFX "80211 cores initialized\n"); + bcm43xx_security_init(bcm); + bcm43xx_softmac_init(bcm); + + bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_DYNAMIC); + + spin_lock_irqsave(&bcm->lock, flags); + bcm->initialized = 1; + spin_unlock_irqrestore(&bcm->lock, flags); + + if (bcm->current_core->radio->initial_channel != 0xFF) { + bcm43xx_mac_suspend(bcm); + bcm43xx_radio_selectchannel(bcm, bcm->current_core->radio->initial_channel, 0); + bcm43xx_mac_enable(bcm); + } + bcm43xx_periodic_tasks_setup(bcm); + + assert(err == 0); +out: + return err; + +err_80211_unwind: + tasklet_disable(&bcm->isr_tasklet); + /* unwind all 80211 initialization */ + for (i = 0; i < num_80211_cores; i++) { + if (!(bcm->core_80211[i].flags & BCM43xx_COREFLAG_INITIALIZED)) + continue; + bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL); + bcm43xx_wireless_core_cleanup(bcm); + } +err_crystal_off: + bcm43xx_pctl_set_crystal(bcm, 0); + goto out; +} + +static void bcm43xx_detach_board(struct bcm43xx_private *bcm) +{ + struct pci_dev *pci_dev = bcm->pci_dev; + int i; + + bcm43xx_chipset_detach(bcm); + /* Do _not_ access the chip, after it is detached. */ + iounmap(bcm->mmio_addr); + + pci_release_regions(pci_dev); + pci_disable_device(pci_dev); + + /* Free allocated structures/fields */ + for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) { + kfree(bcm->phy[i]._lo_pairs); + if (bcm->phy[i].dyn_tssi_tbl) + kfree(bcm->phy[i].tssi2dbm); + } +} + +static int bcm43xx_read_phyinfo(struct bcm43xx_private *bcm) +{ + u16 value; + u8 phy_version; + u8 phy_type; + u8 phy_rev; + int phy_rev_ok = 1; + void *p; + + value = bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_VER); + + phy_version = (value & 0xF000) >> 12; + phy_type = (value & 0x0F00) >> 8; + phy_rev = (value & 0x000F); + + dprintk(KERN_INFO PFX "Detected PHY: Version: %x, Type %x, Revision %x\n", + phy_version, phy_type, phy_rev); + + switch (phy_type) { + case BCM43xx_PHYTYPE_A: + if (phy_rev >= 4) + phy_rev_ok = 0; + /*FIXME: We need to switch the ieee->modulation, etc.. flags, + * if we switch 80211 cores after init is done. + * As we do not implement on the fly switching between + * wireless cores, I will leave this as a future task. + */ + bcm->ieee->modulation = IEEE80211_OFDM_MODULATION; + bcm->ieee->mode = IEEE_A; + bcm->ieee->freq_band = IEEE80211_52GHZ_BAND | + IEEE80211_24GHZ_BAND; + break; + case BCM43xx_PHYTYPE_B: + if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 && phy_rev != 7) + phy_rev_ok = 0; + bcm->ieee->modulation = IEEE80211_CCK_MODULATION; + bcm->ieee->mode = IEEE_B; + bcm->ieee->freq_band = IEEE80211_24GHZ_BAND; + break; + case BCM43xx_PHYTYPE_G: + if (phy_rev > 7) + phy_rev_ok = 0; + bcm->ieee->modulation = IEEE80211_OFDM_MODULATION | + IEEE80211_CCK_MODULATION; + bcm->ieee->mode = IEEE_G; + bcm->ieee->freq_band = IEEE80211_24GHZ_BAND; + break; + default: + printk(KERN_ERR PFX "Error: Unknown PHY Type %x\n", + phy_type); + return -ENODEV; + }; + if (!phy_rev_ok) { + printk(KERN_WARNING PFX "Invalid PHY Revision %x\n", + phy_rev); + } + + bcm->current_core->phy->version = phy_version; + bcm->current_core->phy->type = phy_type; + bcm->current_core->phy->rev = phy_rev; + if ((phy_type == BCM43xx_PHYTYPE_B) || (phy_type == BCM43xx_PHYTYPE_G)) { + p = kzalloc(sizeof(struct bcm43xx_lopair) * BCM43xx_LO_COUNT, + GFP_KERNEL); + if (!p) + return -ENOMEM; + bcm->current_core->phy->_lo_pairs = p; + } + + return 0; +} + +static int bcm43xx_attach_board(struct bcm43xx_private *bcm) +{ + struct pci_dev *pci_dev = bcm->pci_dev; + struct net_device *net_dev = bcm->net_dev; + int err; + int i; + void __iomem *ioaddr; + unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; + int num_80211_cores; + u32 coremask; + + err = pci_enable_device(pci_dev); + if (err) { + printk(KERN_ERR PFX "unable to wake up pci device (%i)\n", err); + err = -ENODEV; + goto out; + } + + mmio_start = pci_resource_start(pci_dev, 0); + mmio_end = pci_resource_end(pci_dev, 0); + mmio_flags = pci_resource_flags(pci_dev, 0); + mmio_len = pci_resource_len(pci_dev, 0); + + /* make sure PCI base addr is MMIO */ + if (!(mmio_flags & IORESOURCE_MEM)) { + printk(KERN_ERR PFX + "%s, region #0 not an MMIO resource, aborting\n", + pci_name(pci_dev)); + err = -ENODEV; + goto err_pci_disable; + } +//FIXME: Why is this check disabled for BCM947XX? What is the IO_SIZE there? +#ifndef CONFIG_BCM947XX + if (mmio_len != BCM43xx_IO_SIZE) { + printk(KERN_ERR PFX + "%s: invalid PCI mem region size(s), aborting\n", + pci_name(pci_dev)); + err = -ENODEV; + goto err_pci_disable; + } +#endif + + err = pci_request_regions(pci_dev, DRV_NAME); + if (err) { + printk(KERN_ERR PFX + "could not access PCI resources (%i)\n", err); + goto err_pci_disable; + } + + /* enable PCI bus-mastering */ + pci_set_master(pci_dev); + + /* ioremap MMIO region */ + ioaddr = ioremap(mmio_start, mmio_len); + if (!ioaddr) { + printk(KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", + pci_name(pci_dev)); + err = -EIO; + goto err_pci_release; + } + + net_dev->base_addr = (unsigned long)ioaddr; + bcm->mmio_addr = ioaddr; + bcm->mmio_len = mmio_len; + + bcm43xx_pci_read_config16(bcm, PCI_SUBSYSTEM_VENDOR_ID, + &bcm->board_vendor); + bcm43xx_pci_read_config16(bcm, PCI_SUBSYSTEM_ID, + &bcm->board_type); + bcm43xx_pci_read_config16(bcm, PCI_REVISION_ID, + &bcm->board_revision); + + err = bcm43xx_chipset_attach(bcm); + if (err) + goto err_iounmap; + err = bcm43xx_pctl_init(bcm); + if (err) + goto err_chipset_detach; + err = bcm43xx_probe_cores(bcm); + if (err) + goto err_chipset_detach; + + num_80211_cores = bcm43xx_num_80211_cores(bcm); + + /* Attach all IO cores to the backplane. */ + coremask = 0; + for (i = 0; i < num_80211_cores; i++) + coremask |= (1 << bcm->core_80211[i].index); + //FIXME: Also attach some non80211 cores? + err = bcm43xx_setup_backplane_pci_connection(bcm, coremask); + if (err) { + printk(KERN_ERR PFX "Backplane->PCI connection failed!\n"); + goto err_chipset_detach; + } + + err = bcm43xx_read_sprom(bcm); + if (err) + goto err_chipset_detach; + err = bcm43xx_leds_init(bcm); + if (err) + goto err_chipset_detach; + + for (i = 0; i < num_80211_cores; i++) { + err = bcm43xx_switch_core(bcm, &bcm->core_80211[i]); + assert(err != -ENODEV); + if (err) + goto err_80211_unwind; + + /* Enable the selected wireless core. + * Connect PHY only on the first core. + */ + bcm43xx_wireless_core_reset(bcm, (i == 0)); + + err = bcm43xx_read_phyinfo(bcm); + if (err && (i == 0)) + goto err_80211_unwind; + + err = bcm43xx_read_radioinfo(bcm); + if (err && (i == 0)) + goto err_80211_unwind; + + err = bcm43xx_validate_chip(bcm); + if (err && (i == 0)) + goto err_80211_unwind; + + bcm43xx_radio_turn_off(bcm); + err = bcm43xx_phy_init_tssi2dbm_table(bcm); + if (err) + goto err_80211_unwind; + bcm43xx_wireless_core_disable(bcm); + } + bcm43xx_pctl_set_crystal(bcm, 0); + + /* Set the MAC address in the networking subsystem */ + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) + memcpy(bcm->net_dev->dev_addr, bcm->sprom.et1macaddr, 6); + else + memcpy(bcm->net_dev->dev_addr, bcm->sprom.il0macaddr, 6); + + bcm43xx_geo_init(bcm); + + snprintf(bcm->nick, IW_ESSID_MAX_SIZE, + "Broadcom %04X", bcm->chip_id); + + assert(err == 0); +out: + return err; + +err_80211_unwind: + for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) { + kfree(bcm->phy[i]._lo_pairs); + if (bcm->phy[i].dyn_tssi_tbl) + kfree(bcm->phy[i].tssi2dbm); + } +err_chipset_detach: + bcm43xx_chipset_detach(bcm); +err_iounmap: + iounmap(bcm->mmio_addr); +err_pci_release: + pci_release_regions(pci_dev); +err_pci_disable: + pci_disable_device(pci_dev); + goto out; +} + +static inline +s8 bcm43xx_rssi_postprocess(struct bcm43xx_private *bcm, u8 in_rssi, + int ofdm, int adjust_2053, int adjust_2050) +{ + s32 tmp; + + switch (bcm->current_core->radio->version) { + case 0x2050: + if (ofdm) { + tmp = in_rssi; + if (tmp > 127) + tmp -= 256; + tmp *= 73; + tmp /= 64; + if (adjust_2050) + tmp += 25; + else + tmp -= 3; + } else { + if (bcm->sprom.boardflags & BCM43xx_BFL_RSSI) { + if (in_rssi > 63) + in_rssi = 63; + tmp = bcm->current_core->radio->nrssi_lt[in_rssi]; + tmp = 31 - tmp; + tmp *= -131; + tmp /= 128; + tmp -= 57; + } else { + tmp = in_rssi; + tmp = 31 - tmp; + tmp *= -149; + tmp /= 128; + tmp -= 68; + } + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_G && + adjust_2050) + tmp += 25; + } + break; + case 0x2060: + if (in_rssi > 127) + tmp = in_rssi - 256; + else + tmp = in_rssi; + break; + default: + tmp = in_rssi; + tmp -= 11; + tmp *= 103; + tmp /= 64; + if (adjust_2053) + tmp -= 109; + else + tmp -= 83; + } + + return (s8)tmp; +} + +static inline +s8 bcm43xx_rssinoise_postprocess(struct bcm43xx_private *bcm, u8 in_rssi) +{ + s8 ret; + + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) { + //TODO: Incomplete specs. + ret = 0; + } else + ret = bcm43xx_rssi_postprocess(bcm, in_rssi, 0, 1, 1); + + return ret; +} + +static inline +int bcm43xx_rx_packet(struct bcm43xx_private *bcm, + struct sk_buff *skb, + struct ieee80211_rx_stats *stats) +{ + int err; + + err = ieee80211_rx(bcm->ieee, skb, stats); + if (unlikely(err == 0)) + return -EINVAL; + return 0; +} + +int fastcall bcm43xx_rx(struct bcm43xx_private *bcm, + struct sk_buff *skb, + struct bcm43xx_rxhdr *rxhdr) +{ + struct bcm43xx_plcp_hdr4 *plcp; + struct ieee80211_rx_stats stats; + struct ieee80211_hdr_4addr *wlhdr; + u16 frame_ctl; + int is_packet_for_us = 0; + int err = -EINVAL; + const u16 rxflags1 = le16_to_cpu(rxhdr->flags1); + const u16 rxflags2 = le16_to_cpu(rxhdr->flags2); + const u16 rxflags3 = le16_to_cpu(rxhdr->flags3); + const int is_ofdm = !!(rxflags1 & BCM43xx_RXHDR_FLAGS1_OFDM); + + if (rxflags2 & BCM43xx_RXHDR_FLAGS2_TYPE2FRAME) { + plcp = (struct bcm43xx_plcp_hdr4 *)(skb->data + 2); + /* Skip two unknown bytes and the PLCP header. */ + skb_pull(skb, 2 + sizeof(struct bcm43xx_plcp_hdr6)); + } else { + plcp = (struct bcm43xx_plcp_hdr4 *)(skb->data); + /* Skip the PLCP header. */ + skb_pull(skb, sizeof(struct bcm43xx_plcp_hdr6)); + } + /* The SKB contains the PAYLOAD (wireless header + data) + * at this point. The FCS at the end is stripped. + */ + + memset(&stats, 0, sizeof(stats)); + stats.mac_time = le16_to_cpu(rxhdr->mactime); + stats.rssi = bcm43xx_rssi_postprocess(bcm, rxhdr->rssi, is_ofdm, + !!(rxflags1 & BCM43xx_RXHDR_FLAGS1_2053RSSIADJ), + !!(rxflags3 & BCM43xx_RXHDR_FLAGS3_2050RSSIADJ)); + stats.signal = rxhdr->signal_quality; //FIXME +//TODO stats.noise = + stats.rate = bcm43xx_plcp_get_bitrate(plcp, is_ofdm); +//printk("RX ofdm %d, rate == %u\n", is_ofdm, stats.rate); + stats.received_channel = bcm->current_core->radio->channel; +//TODO stats.control = + stats.mask = IEEE80211_STATMASK_SIGNAL | +//TODO IEEE80211_STATMASK_NOISE | + IEEE80211_STATMASK_RATE | + IEEE80211_STATMASK_RSSI; + if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) + stats.freq = IEEE80211_52GHZ_BAND; + else + stats.freq = IEEE80211_24GHZ_BAND; + stats.len = skb->len; + + bcm->stats.last_rx = jiffies; + if (bcm->ieee->iw_mode == IW_MODE_MONITOR) + return bcm43xx_rx_packet(bcm, skb, &stats); + + wlhdr = (struct ieee80211_hdr_4addr *)(skb->data); + + switch (bcm->ieee->iw_mode) { + case IW_MODE_ADHOC: + if (memcmp(wlhdr->addr1, bcm->net_dev->dev_addr, ETH_ALEN) == 0 || + memcmp(wlhdr->addr3, bcm->ieee->bssid, ETH_ALEN) == 0 || + is_broadcast_ether_addr(wlhdr->addr1) || + is_multicast_ether_addr(wlhdr->addr1) || + bcm->net_dev->flags & IFF_PROMISC) + is_packet_for_us = 1; + break; + case IW_MODE_INFRA: + default: + /* When receiving multicast or broadcast packets, filter out + the packets we send ourself; we shouldn't see those */ + if (memcmp(wlhdr->addr3, bcm->ieee->bssid, ETH_ALEN) == 0 || + memcmp(wlhdr->addr1, bcm->net_dev->dev_addr, ETH_ALEN) == 0 || + (memcmp(wlhdr->addr3, bcm->net_dev->dev_addr, ETH_ALEN) && + (is_broadcast_ether_addr(wlhdr->addr1) || + is_multicast_ether_addr(wlhdr->addr1) || + bcm->net_dev->flags & IFF_PROMISC))) + is_packet_for_us = 1; + break; + } + + frame_ctl = le16_to_cpu(wlhdr->frame_ctl); + + if ((frame_ctl & IEEE80211_FCTL_PROTECTED) && !bcm->ieee->host_decrypt) { + frame_ctl &= ~IEEE80211_FCTL_PROTECTED; + wlhdr->frame_ctl = cpu_to_le16(frame_ctl); + /* trim IV and ICV */ + /* FIXME: this must be done only for WEP encrypted packets */ + if (skb->len < 32) { + dprintkl(KERN_ERR PFX "RX packet dropped (PROTECTED flag " + "set and length < 32)\n"); + return -EINVAL; + } else { + memmove(skb->data + 4, skb->data, 24); + skb_pull(skb, 4); + skb_trim(skb, skb->len - 4); + stats.len -= 8; + } + /* do _not_ use wlhdr again without reassigning it */ + } + + switch (WLAN_FC_GET_TYPE(frame_ctl)) { + case IEEE80211_FTYPE_MGMT: + ieee80211_rx_mgt(bcm->ieee, skb->data, &stats); + break; + case IEEE80211_FTYPE_DATA: + if (is_packet_for_us) + err = bcm43xx_rx_packet(bcm, skb, &stats); + break; + case IEEE80211_FTYPE_CTL: + break; + default: + assert(0); + return -EINVAL; + } + + return err; +} + +/* Do the Hardware IO operations to send the txb */ +static inline int bcm43xx_tx(struct bcm43xx_private *bcm, + struct ieee80211_txb *txb) +{ + int err = -ENODEV; + + if (bcm->pio_mode) + err = bcm43xx_pio_transfer_txb(bcm, txb); + else + err = bcm43xx_dma_transfer_txb(bcm, txb); + + return err; +} + +static void bcm43xx_ieee80211_set_chan(struct net_device *net_dev, + u8 channel) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + bcm43xx_mac_suspend(bcm); + bcm43xx_radio_selectchannel(bcm, channel, 0); + bcm43xx_mac_enable(bcm); + spin_unlock_irqrestore(&bcm->lock, flags); +} + +/* set_security() callback in struct ieee80211_device */ +static void bcm43xx_ieee80211_set_security(struct net_device *net_dev, + struct ieee80211_security *sec) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + struct ieee80211_security *secinfo = &bcm->ieee->sec; + unsigned long flags; + int keyidx; + + dprintk(KERN_INFO PFX "set security called\n"); + + spin_lock_irqsave(&bcm->lock, flags); + + for (keyidx = 0; keyidx<WEP_KEYS; keyidx++) + if (sec->flags & (1<<keyidx)) { + secinfo->encode_alg[keyidx] = sec->encode_alg[keyidx]; + secinfo->key_sizes[keyidx] = sec->key_sizes[keyidx]; + memcpy(secinfo->keys[keyidx], sec->keys[keyidx], SCM_KEY_LEN); + } + + if (sec->flags & SEC_ACTIVE_KEY) { + secinfo->active_key = sec->active_key; + dprintk(KERN_INFO PFX " .active_key = %d\n", sec->active_key); + } + if (sec->flags & SEC_UNICAST_GROUP) { + secinfo->unicast_uses_group = sec->unicast_uses_group; + dprintk(KERN_INFO PFX " .unicast_uses_group = %d\n", sec->unicast_uses_group); + } + if (sec->flags & SEC_LEVEL) { + secinfo->level = sec->level; + dprintk(KERN_INFO PFX " .level = %d\n", sec->level); + } + if (sec->flags & SEC_ENABLED) { + secinfo->enabled = sec->enabled; + dprintk(KERN_INFO PFX " .enabled = %d\n", sec->enabled); + } + if (sec->flags & SEC_ENCRYPT) { + secinfo->encrypt = sec->encrypt; + dprintk(KERN_INFO PFX " .encrypt = %d\n", sec->encrypt); + } + if (bcm->initialized && !bcm->ieee->host_encrypt) { + if (secinfo->enabled) { + /* upload WEP keys to hardware */ + char null_address[6] = { 0 }; + u8 algorithm = 0; + for (keyidx = 0; keyidx<WEP_KEYS; keyidx++) { + if (!(sec->flags & (1<<keyidx))) + continue; + switch (sec->encode_alg[keyidx]) { + case SEC_ALG_NONE: algorithm = BCM43xx_SEC_ALGO_NONE; break; + case SEC_ALG_WEP: + algorithm = BCM43xx_SEC_ALGO_WEP; + if (secinfo->key_sizes[keyidx] == 13) + algorithm = BCM43xx_SEC_ALGO_WEP104; + break; + case SEC_ALG_TKIP: + FIXME(); + algorithm = BCM43xx_SEC_ALGO_TKIP; + break; + case SEC_ALG_CCMP: + FIXME(); + algorithm = BCM43xx_SEC_ALGO_AES; + break; + default: + assert(0); + break; + } + bcm43xx_key_write(bcm, keyidx, algorithm, sec->keys[keyidx], secinfo->key_sizes[keyidx], &null_address[0]); + bcm->key[keyidx].enabled = 1; + bcm->key[keyidx].algorithm = algorithm; + } + } else + bcm43xx_clear_keys(bcm); + } + spin_unlock_irqrestore(&bcm->lock, flags); +} + +/* hard_start_xmit() callback in struct ieee80211_device */ +static int bcm43xx_ieee80211_hard_start_xmit(struct ieee80211_txb *txb, + struct net_device *net_dev, + int pri) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + int err = -ENODEV; + unsigned long flags; + + spin_lock_irqsave(&bcm->lock, flags); + if (likely(bcm->initialized)) + err = bcm43xx_tx(bcm, txb); + spin_unlock_irqrestore(&bcm->lock, flags); + + return err; +} + +static struct net_device_stats * bcm43xx_net_get_stats(struct net_device *net_dev) +{ + return &(bcm43xx_priv(net_dev)->ieee->stats); +} + +static void bcm43xx_net_tx_timeout(struct net_device *net_dev) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + + bcm43xx_controller_restart(bcm, "TX timeout"); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void bcm43xx_net_poll_controller(struct net_device *net_dev) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + unsigned long flags; + + local_irq_save(flags); + bcm43xx_interrupt_handler(bcm->irq, bcm, NULL); + local_irq_restore(flags); +} +#endif /* CONFIG_NET_POLL_CONTROLLER */ + +static int bcm43xx_net_open(struct net_device *net_dev) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + + return bcm43xx_init_board(bcm); +} + +static int bcm43xx_net_stop(struct net_device *net_dev) +{ + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + + ieee80211softmac_stop(net_dev); + bcm43xx_disable_interrupts_sync(bcm, NULL); + bcm43xx_free_board(bcm); + + return 0; +} + +static void bcm43xx_init_private(struct bcm43xx_private *bcm, + struct net_device *net_dev, + struct pci_dev *pci_dev, + struct workqueue_struct *wq) +{ + bcm->ieee = netdev_priv(net_dev); + bcm->softmac = ieee80211_priv(net_dev); + bcm->softmac->set_channel = bcm43xx_ieee80211_set_chan; + bcm->workqueue = wq; + +#ifdef DEBUG_ENABLE_MMIO_PRINT + bcm43xx_mmioprint_initial(bcm, 1); +#else + bcm43xx_mmioprint_initial(bcm, 0); +#endif +#ifdef DEBUG_ENABLE_PCILOG + bcm43xx_pciprint_initial(bcm, 1); +#else + bcm43xx_pciprint_initial(bcm, 0); +#endif + + bcm->irq_savedstate = BCM43xx_IRQ_INITIAL; + bcm->pci_dev = pci_dev; + bcm->net_dev = net_dev; + if (modparam_bad_frames_preempt) + bcm->bad_frames_preempt = 1; + spin_lock_init(&bcm->lock); + tasklet_init(&bcm->isr_tasklet, + (void (*)(unsigned long))bcm43xx_interrupt_tasklet, + (unsigned long)bcm); + tasklet_disable_nosync(&bcm->isr_tasklet); + if (modparam_pio) { + bcm->pio_mode = 1; + } else { + if (pci_set_dma_mask(pci_dev, DMA_30BIT_MASK) == 0) { + bcm->pio_mode = 0; + } else { + printk(KERN_WARNING PFX "DMA not supported. Falling back to PIO.\n"); + bcm->pio_mode = 1; + } + } + bcm->rts_threshold = BCM43xx_DEFAULT_RTS_THRESHOLD; + + /* default to sw encryption for now */ + bcm->ieee->host_build_iv = 0; + bcm->ieee->host_encrypt = 1; + bcm->ieee->host_decrypt = 1; + + bcm->ieee->iw_mode = BCM43xx_INITIAL_IWMODE; + bcm->ieee->tx_headroom = sizeof(struct bcm43xx_txhdr); + bcm->ieee->set_security = bcm43xx_ieee80211_set_security; + bcm->ieee->hard_start_xmit = bcm43xx_ieee80211_hard_start_xmit; +} + +static int __devinit bcm43xx_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *net_dev; + struct bcm43xx_private *bcm; + struct workqueue_struct *wq; + int err; + +#ifdef CONFIG_BCM947XX + if ((pdev->bus->number == 0) && (pdev->device != 0x0800)) + return -ENODEV; +#endif + +#ifdef DEBUG_SINGLE_DEVICE_ONLY + if (strcmp(pci_name(pdev), DEBUG_SINGLE_DEVICE_ONLY)) + return -ENODEV; +#endif + + net_dev = alloc_ieee80211softmac(sizeof(*bcm)); + if (!net_dev) { + printk(KERN_ERR PFX + "could not allocate ieee80211 device %s\n", + pci_name(pdev)); + err = -ENOMEM; + goto out; + } + /* initialize the net_device struct */ + SET_MODULE_OWNER(net_dev); + SET_NETDEV_DEV(net_dev, &pdev->dev); + + net_dev->open = bcm43xx_net_open; + net_dev->stop = bcm43xx_net_stop; + net_dev->get_stats = bcm43xx_net_get_stats; + net_dev->tx_timeout = bcm43xx_net_tx_timeout; +#ifdef CONFIG_NET_POLL_CONTROLLER + net_dev->poll_controller = bcm43xx_net_poll_controller; +#endif + net_dev->wireless_handlers = &bcm43xx_wx_handlers_def; + net_dev->irq = pdev->irq; + net_dev->watchdog_timeo = BCM43xx_TX_TIMEOUT; + + /* initialize the bcm43xx_private struct */ + bcm = bcm43xx_priv(net_dev); + memset(bcm, 0, sizeof(*bcm)); + wq = create_workqueue(DRV_NAME "_wq"); + if (!wq) { + err = -ENOMEM; + goto err_free_netdev; + } + bcm43xx_init_private(bcm, net_dev, pdev, wq); + + pci_set_drvdata(pdev, net_dev); + + err = bcm43xx_attach_board(bcm); + if (err) + goto err_destroy_wq; + + err = register_netdev(net_dev); + if (err) { + printk(KERN_ERR PFX "Cannot register net device, " + "aborting.\n"); + err = -ENOMEM; + goto err_detach_board; + } + + bcm43xx_debugfs_add_device(bcm); + + assert(err == 0); +out: + return err; + +err_detach_board: + bcm43xx_detach_board(bcm); +err_destroy_wq: + destroy_workqueue(wq); +err_free_netdev: + free_ieee80211softmac(net_dev); + goto out; +} + +static void __devexit bcm43xx_remove_one(struct pci_dev *pdev) +{ + struct net_device *net_dev = pci_get_drvdata(pdev); + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + + bcm43xx_debugfs_remove_device(bcm); + unregister_netdev(net_dev); + bcm43xx_detach_board(bcm); + assert(bcm->ucode == NULL); + destroy_workqueue(bcm->workqueue); + free_ieee80211softmac(net_dev); +} + +/* Hard-reset the chip. Do not call this directly. + * Use bcm43xx_controller_restart() + */ +static void bcm43xx_chip_reset(void *_bcm) +{ + struct bcm43xx_private *bcm = _bcm; + struct net_device *net_dev = bcm->net_dev; + struct pci_dev *pci_dev = bcm->pci_dev; + struct workqueue_struct *wq = bcm->workqueue; + int err; + int was_initialized = bcm->initialized; + + netif_stop_queue(bcm->net_dev); + tasklet_disable(&bcm->isr_tasklet); + + bcm->firmware_norelease = 1; + if (was_initialized) + bcm43xx_free_board(bcm); + bcm->firmware_norelease = 0; + bcm43xx_detach_board(bcm); + bcm43xx_init_private(bcm, net_dev, pci_dev, wq); + err = bcm43xx_attach_board(bcm); + if (err) + goto failure; + if (was_initialized) { + err = bcm43xx_init_board(bcm); + if (err) + goto failure; + } + netif_wake_queue(bcm->net_dev); + printk(KERN_INFO PFX "Controller restarted\n"); + + return; +failure: + printk(KERN_ERR PFX "Controller restart failed\n"); +} + +/* Hard-reset the chip. + * This can be called from interrupt or process context. + * Make sure to _not_ re-enable device interrupts after this has been called. +*/ +void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason) +{ + bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL); + printk(KERN_ERR PFX "Controller RESET (%s) ...\n", reason); + INIT_WORK(&bcm->restart_work, bcm43xx_chip_reset, bcm); + queue_work(bcm->workqueue, &bcm->restart_work); +} + +#ifdef CONFIG_PM + +static int bcm43xx_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct net_device *net_dev = pci_get_drvdata(pdev); + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + unsigned long flags; + int try_to_shutdown = 0, err; + + dprintk(KERN_INFO PFX "Suspending...\n"); + + spin_lock_irqsave(&bcm->lock, flags); + bcm->was_initialized = bcm->initialized; + if (bcm->initialized) + try_to_shutdown = 1; + spin_unlock_irqrestore(&bcm->lock, flags); + + netif_device_detach(net_dev); + if (try_to_shutdown) { + ieee80211softmac_stop(net_dev); + err = bcm43xx_disable_interrupts_sync(bcm, &bcm->irq_savedstate); + if (unlikely(err)) { + dprintk(KERN_ERR PFX "Suspend failed.\n"); + return -EAGAIN; + } + bcm->firmware_norelease = 1; + bcm43xx_free_board(bcm); + bcm->firmware_norelease = 0; + } + bcm43xx_chipset_detach(bcm); + + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, pci_choose_state(pdev, state)); + + dprintk(KERN_INFO PFX "Device suspended.\n"); + + return 0; +} + +static int bcm43xx_resume(struct pci_dev *pdev) +{ + struct net_device *net_dev = pci_get_drvdata(pdev); + struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); + int err = 0; + + dprintk(KERN_INFO PFX "Resuming...\n"); + + pci_set_power_state(pdev, 0); + pci_enable_device(pdev); + pci_restore_state(pdev); + + bcm43xx_chipset_attach(bcm); + if (bcm->was_initialized) { + bcm->irq_savedstate = BCM43xx_IRQ_INITIAL; + err = bcm43xx_init_board(bcm); + } + if (err) { + printk(KERN_ERR PFX "Resume failed!\n"); + return err; + } + + netif_device_attach(net_dev); + + /*FIXME: This should be handled by softmac instead. */ + schedule_work(&bcm->softmac->associnfo.work); + + dprintk(KERN_INFO PFX "Device resumed.\n"); + + return 0; +} + +#endif /* CONFIG_PM */ + +static struct pci_driver bcm43xx_pci_driver = { + .name = BCM43xx_DRIVER_NAME, + .id_table = bcm43xx_pci_tbl, + .probe = bcm43xx_init_one, + .remove = __devexit_p(bcm43xx_remove_one), +#ifdef CONFIG_PM + .suspend = bcm43xx_suspend, + .resume = bcm43xx_resume, +#endif /* CONFIG_PM */ +}; + +static int __init bcm43xx_init(void) +{ + printk(KERN_INFO BCM43xx_DRIVER_NAME "\n"); + bcm43xx_debugfs_init(); + return pci_register_driver(&bcm43xx_pci_driver); +} + +static void __exit bcm43xx_exit(void) +{ + pci_unregister_driver(&bcm43xx_pci_driver); + bcm43xx_debugfs_exit(); +} + +module_init(bcm43xx_init) +module_exit(bcm43xx_exit) + +/* vim: set ts=8 sw=8 sts=8: */ |
