-/*
-
- Broadcom B43 wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
- Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
- Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de>
- Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
- Copyright (c) 2005 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 <linux/dma-mapping.h>
-#include <asm/unaligned.h>
-
-#include "b43.h"
-#include "main.h"
-#include "debugfs.h"
-#include "phy.h"
-#include "dma.h"
-#include "sysfs.h"
-#include "xmit.h"
-#include "lo.h"
-#include "pcmcia.h"
-
-MODULE_DESCRIPTION("Broadcom B43 wireless driver");
-MODULE_AUTHOR("Martin Langer");
-MODULE_AUTHOR("Stefano Brivio");
-MODULE_AUTHOR("Michael Buesch");
-MODULE_LICENSE("GPL");
-
-
-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 char modparam_fwpostfix[16];
-module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
-MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
-
-static int modparam_hwpctl;
-module_param_named(hwpctl, modparam_hwpctl, int, 0444);
-MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
-
-static int modparam_nohwcrypt;
-module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
-MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
-
-static const struct ssb_device_id b43_ssb_tbl[] = {
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
- SSB_DEVTABLE_END
-};
-
-MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
-
-/* Channel and ratetables are shared for all devices.
- * They can't be const, because ieee80211 puts some precalculated
- * data in there. This data is the same for all devices, so we don't
- * get concurrency issues */
-#define RATETAB_ENT(_rateid, _flags) \
- { \
- .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
- .hw_value = (_rateid), \
- .flags = (_flags), \
- }
-
-/*
- * NOTE: When changing this, sync with xmit.c's
- * b43_plcp_get_bitrate_idx_* functions!
- */
-static struct ieee80211_rate __b43_ratetable[] = {
- RATETAB_ENT(B43_CCK_RATE_1MB, 0),
- RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
- RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
-};
-
-#define b43_a_ratetable (__b43_ratetable + 4)
-#define b43_a_ratetable_size 8
-#define b43_b_ratetable (__b43_ratetable + 0)
-#define b43_b_ratetable_size 4
-#define b43_g_ratetable (__b43_ratetable + 0)
-#define b43_g_ratetable_size 12
-
-#define CHANTAB_ENT(_chanid, _freq) \
- { \
- .center_freq = (_freq), \
- .hw_value = (_chanid), \
- }
-static struct ieee80211_channel b43_2ghz_chantable[] = {
- CHANTAB_ENT(1, 2412),
- CHANTAB_ENT(2, 2417),
- CHANTAB_ENT(3, 2422),
- CHANTAB_ENT(4, 2427),
- CHANTAB_ENT(5, 2432),
- CHANTAB_ENT(6, 2437),
- CHANTAB_ENT(7, 2442),
- CHANTAB_ENT(8, 2447),
- CHANTAB_ENT(9, 2452),
- CHANTAB_ENT(10, 2457),
- CHANTAB_ENT(11, 2462),
- CHANTAB_ENT(12, 2467),
- CHANTAB_ENT(13, 2472),
- CHANTAB_ENT(14, 2484),
-};
-
-#ifdef NOTYET
-static struct ieee80211_channel b43_5ghz_chantable[] = {
- CHANTAB_ENT(36, 5180),
- CHANTAB_ENT(40, 5200),
- CHANTAB_ENT(44, 5220),
- CHANTAB_ENT(48, 5240),
- CHANTAB_ENT(52, 5260),
- CHANTAB_ENT(56, 5280),
- CHANTAB_ENT(60, 5300),
- CHANTAB_ENT(64, 5320),
- CHANTAB_ENT(149, 5745),
- CHANTAB_ENT(153, 5765),
- CHANTAB_ENT(157, 5785),
- CHANTAB_ENT(161, 5805),
- CHANTAB_ENT(165, 5825),
-};
-
-static struct ieee80211_supported_band b43_band_5GHz = {
- .channels = b43_5ghz_chantable,
- .n_channels = ARRAY_SIZE(b43_5ghz_chantable),
- .bitrates = b43_a_ratetable,
- .n_bitrates = b43_a_ratetable_size,
-};
-#endif
-
-static struct ieee80211_supported_band b43_band_2GHz = {
- .channels = b43_2ghz_chantable,
- .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
- .bitrates = b43_g_ratetable,
- .n_bitrates = b43_g_ratetable_size,
-};
-
-static void b43_wireless_core_exit(struct b43_wldev *dev);
-static int b43_wireless_core_init(struct b43_wldev *dev);
-static void b43_wireless_core_stop(struct b43_wldev *dev);
-static int b43_wireless_core_start(struct b43_wldev *dev);
-
-static int b43_ratelimit(struct b43_wl *wl)
-{
- if (!wl || !wl->current_dev)
- return 1;
- if (b43_status(wl->current_dev) < B43_STAT_STARTED)
- return 1;
- /* We are up and running.
- * Ratelimit the messages to avoid DoS over the net. */
- return net_ratelimit();
-}
-
-void b43info(struct b43_wl *wl, const char *fmt, ...)
-{
- va_list args;
-
- if (!b43_ratelimit(wl))
- return;
- va_start(args, fmt);
- printk(KERN_INFO "b43-%s: ",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
- vprintk(fmt, args);
- va_end(args);
-}
-
-void b43err(struct b43_wl *wl, const char *fmt, ...)
-{
- va_list args;
-
- if (!b43_ratelimit(wl))
- return;
- va_start(args, fmt);
- printk(KERN_ERR "b43-%s ERROR: ",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
- vprintk(fmt, args);
- va_end(args);
-}
-
-void b43warn(struct b43_wl *wl, const char *fmt, ...)
-{
- va_list args;
-
- if (!b43_ratelimit(wl))
- return;
- va_start(args, fmt);
- printk(KERN_WARNING "b43-%s warning: ",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
- vprintk(fmt, args);
- va_end(args);
-}
-
-#if B43_DEBUG
-void b43dbg(struct b43_wl *wl, const char *fmt, ...)
-{
- va_list args;
-
- va_start(args, fmt);
- printk(KERN_DEBUG "b43-%s debug: ",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
- vprintk(fmt, args);
- va_end(args);
-}
-#endif /* DEBUG */
-
-static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
-{
- u32 macctl;
-
- B43_WARN_ON(offset % 4 != 0);
-
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- if (macctl & B43_MACCTL_BE)
- val = swab32(val);
-
- b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
- mmiowb();
- b43_write32(dev, B43_MMIO_RAM_DATA, val);
-}
-
-static inline void b43_shm_control_word(struct b43_wldev *dev,
- u16 routing, u16 offset)
-{
- u32 control;
-
- /* "offset" is the WORD offset. */
- control = routing;
- control <<= 16;
- control |= offset;
- b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
-}
-
-u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
-{
- struct b43_wl *wl = dev->wl;
- unsigned long flags;
- u32 ret;
-
- spin_lock_irqsave(&wl->shm_lock, flags);
- if (routing == B43_SHM_SHARED) {
- B43_WARN_ON(offset & 0x0001);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43_shm_control_word(dev, routing, offset >> 2);
- ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
- ret <<= 16;
- b43_shm_control_word(dev, routing, (offset >> 2) + 1);
- ret |= b43_read16(dev, B43_MMIO_SHM_DATA);
-
- goto out;
- }
- offset >>= 2;
- }
- b43_shm_control_word(dev, routing, offset);
- ret = b43_read32(dev, B43_MMIO_SHM_DATA);
-out:
- spin_unlock_irqrestore(&wl->shm_lock, flags);
-
- return ret;
-}
-
-u16 b43_shm_read16(struct b43_wldev * dev, u16 routing, u16 offset)
-{
- struct b43_wl *wl = dev->wl;
- unsigned long flags;
- u16 ret;
-
- spin_lock_irqsave(&wl->shm_lock, flags);
- if (routing == B43_SHM_SHARED) {
- B43_WARN_ON(offset & 0x0001);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43_shm_control_word(dev, routing, offset >> 2);
- ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
-
- goto out;
- }
- offset >>= 2;
- }
- b43_shm_control_word(dev, routing, offset);
- ret = b43_read16(dev, B43_MMIO_SHM_DATA);
-out:
- spin_unlock_irqrestore(&wl->shm_lock, flags);
-
- return ret;
-}
-
-void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
-{
- struct b43_wl *wl = dev->wl;
- unsigned long flags;
-
- spin_lock_irqsave(&wl->shm_lock, flags);
- if (routing == B43_SHM_SHARED) {
- B43_WARN_ON(offset & 0x0001);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43_shm_control_word(dev, routing, offset >> 2);
- b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
- (value >> 16) & 0xffff);
- b43_shm_control_word(dev, routing, (offset >> 2) + 1);
- b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff);
- goto out;
- }
- offset >>= 2;
- }
- b43_shm_control_word(dev, routing, offset);
- b43_write32(dev, B43_MMIO_SHM_DATA, value);
-out:
- spin_unlock_irqrestore(&wl->shm_lock, flags);
-}
-
-void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
-{
- struct b43_wl *wl = dev->wl;
- unsigned long flags;
-
- spin_lock_irqsave(&wl->shm_lock, flags);
- if (routing == B43_SHM_SHARED) {
- B43_WARN_ON(offset & 0x0001);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43_shm_control_word(dev, routing, offset >> 2);
- b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
- goto out;
- }
- offset >>= 2;
- }
- b43_shm_control_word(dev, routing, offset);
- b43_write16(dev, B43_MMIO_SHM_DATA, value);
-out:
- spin_unlock_irqrestore(&wl->shm_lock, flags);
-}
-
-/* Read HostFlags */
-u32 b43_hf_read(struct b43_wldev * dev)
-{
- u32 ret;
-
- ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
- ret <<= 16;
- ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
-
- return ret;
-}
-
-/* Write HostFlags */
-void b43_hf_write(struct b43_wldev *dev, u32 value)
-{
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_HOSTFLO, (value & 0x0000FFFF));
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_HOSTFHI, ((value & 0xFFFF0000) >> 16));
-}
-
-void b43_tsf_read(struct b43_wldev *dev, 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 (dev->dev->id.revision >= 3) {
- u32 low, high, high2;
-
- do {
- high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
- low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
- high2 = b43_read32(dev, B43_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 = b43_read16(dev, B43_MMIO_TSF_3);
- v2 = b43_read16(dev, B43_MMIO_TSF_2);
- v1 = b43_read16(dev, B43_MMIO_TSF_1);
- v0 = b43_read16(dev, B43_MMIO_TSF_0);
-
- test3 = b43_read16(dev, B43_MMIO_TSF_3);
- test2 = b43_read16(dev, B43_MMIO_TSF_2);
- test1 = b43_read16(dev, B43_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;
- }
-}
-
-static void b43_time_lock(struct b43_wldev *dev)
-{
- u32 macctl;
-
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- macctl |= B43_MACCTL_TBTTHOLD;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
- /* Commit the write */
- b43_read32(dev, B43_MMIO_MACCTL);
-}
-
-static void b43_time_unlock(struct b43_wldev *dev)
-{
- u32 macctl;
-
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- macctl &= ~B43_MACCTL_TBTTHOLD;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
- /* Commit the write */
- b43_read32(dev, B43_MMIO_MACCTL);
-}
-
-static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
-{
- /* 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 (dev->dev->id.revision >= 3) {
- u32 lo = (tsf & 0x00000000FFFFFFFFULL);
- u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
-
- b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0);
- mmiowb();
- b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi);
- mmiowb();
- b43_write32(dev, B43_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;
-
- b43_write16(dev, B43_MMIO_TSF_0, 0);
- mmiowb();
- b43_write16(dev, B43_MMIO_TSF_3, v3);
- mmiowb();
- b43_write16(dev, B43_MMIO_TSF_2, v2);
- mmiowb();
- b43_write16(dev, B43_MMIO_TSF_1, v1);
- mmiowb();
- b43_write16(dev, B43_MMIO_TSF_0, v0);
- }
-}
-
-void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
-{
- b43_time_lock(dev);
- b43_tsf_write_locked(dev, tsf);
- b43_time_unlock(dev);
-}
-
-static
-void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac)
-{
- static const u8 zero_addr[ETH_ALEN] = { 0 };
- u16 data;
-
- if (!mac)
- mac = zero_addr;
-
- offset |= 0x0020;
- b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
-
- data = mac[0];
- data |= mac[1] << 8;
- b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
- data = mac[2];
- data |= mac[3] << 8;
- b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
- data = mac[4];
- data |= mac[5] << 8;
- b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
-}
-
-static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
-{
- const u8 *mac;
- const u8 *bssid;
- u8 mac_bssid[ETH_ALEN * 2];
- int i;
- u32 tmp;
-
- bssid = dev->wl->bssid;
- mac = dev->wl->mac_addr;
-
- b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
-
- 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)) {
- tmp = (u32) (mac_bssid[i + 0]);
- tmp |= (u32) (mac_bssid[i + 1]) << 8;
- tmp |= (u32) (mac_bssid[i + 2]) << 16;
- tmp |= (u32) (mac_bssid[i + 3]) << 24;
- b43_ram_write(dev, 0x20 + i, tmp);
- }
-}
-
-static void b43_upload_card_macaddress(struct b43_wldev *dev)
-{
- b43_write_mac_bssid_templates(dev);
- b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
-}
-
-static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
-{
- /* slot_time is in usec. */
- if (dev->phy.type != B43_PHYTYPE_G)
- return;
- b43_write16(dev, 0x684, 510 + slot_time);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
-}
-
-static void b43_short_slot_timing_enable(struct b43_wldev *dev)
-{
- b43_set_slot_time(dev, 9);
- dev->short_slot = 1;
-}
-
-static void b43_short_slot_timing_disable(struct b43_wldev *dev)
-{
- b43_set_slot_time(dev, 20);
- dev->short_slot = 0;
-}
-
-/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
- * Returns the _previously_ enabled IRQ mask.
- */
-static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask)
-{
- u32 old_mask;
-
- old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
- b43_write32(dev, B43_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 b43_interrupt_disable(struct b43_wldev *dev, u32 mask)
-{
- u32 old_mask;
-
- old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
- b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
-
- return old_mask;
-}
-
-/* Synchronize IRQ top- and bottom-half.
- * IRQs must be masked before calling this.
- * This must not be called with the irq_lock held.
- */
-static void b43_synchronize_irq(struct b43_wldev *dev)
-{
- synchronize_irq(dev->dev->irq);
- tasklet_kill(&dev->isr_tasklet);
-}
-
-/* DummyTransmission function, as documented on
- * http://bcm-specs.sipsolutions.net/DummyTransmission
- */
-void b43_dummy_transmission(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- unsigned int i, max_loop;
- u16 value;
- u32 buffer[5] = {
- 0x00000000,
- 0x00D40000,
- 0x00000000,
- 0x01000000,
- 0x00000000,
- };
-
- switch (phy->type) {
- case B43_PHYTYPE_A:
- max_loop = 0x1E;
- buffer[0] = 0x000201CC;
- break;
- case B43_PHYTYPE_B:
- case B43_PHYTYPE_G:
- max_loop = 0xFA;
- buffer[0] = 0x000B846E;
- break;
- default:
- B43_WARN_ON(1);
- return;
- }
-
- for (i = 0; i < 5; i++)
- b43_ram_write(dev, i * 4, buffer[i]);
-
- /* Commit writes */
- b43_read32(dev, B43_MMIO_MACCTL);
-
- b43_write16(dev, 0x0568, 0x0000);
- b43_write16(dev, 0x07C0, 0x0000);
- value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0);
- b43_write16(dev, 0x050C, value);
- b43_write16(dev, 0x0508, 0x0000);
- b43_write16(dev, 0x050A, 0x0000);
- b43_write16(dev, 0x054C, 0x0000);
- b43_write16(dev, 0x056A, 0x0014);
- b43_write16(dev, 0x0568, 0x0826);
- b43_write16(dev, 0x0500, 0x0000);
- b43_write16(dev, 0x0502, 0x0030);
-
- if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
- b43_radio_write16(dev, 0x0051, 0x0017);
- for (i = 0x00; i < max_loop; i++) {
- value = b43_read16(dev, 0x050E);
- if (value & 0x0080)
- break;
- udelay(10);
- }
- for (i = 0x00; i < 0x0A; i++) {
- value = b43_read16(dev, 0x050E);
- if (value & 0x0400)
- break;
- udelay(10);
- }
- for (i = 0x00; i < 0x0A; i++) {
- value = b43_read16(dev, 0x0690);
- if (!(value & 0x0100))
- break;
- udelay(10);
- }
- if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
- b43_radio_write16(dev, 0x0051, 0x0037);
-}
-
-static void key_write(struct b43_wldev *dev,
- u8 index, u8 algorithm, const u8 * key)
-{
- unsigned int i;
- u32 offset;
- u16 value;
- u16 kidx;
-
- /* Key index/algo block */
- kidx = b43_kidx_to_fw(dev, index);
- value = ((kidx << 4) | algorithm);
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
-
- /* Write the key to the Key Table Pointer offset */
- offset = dev->ktp + (index * B43_SEC_KEYSIZE);
- for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
- value = key[i];
- value |= (u16) (key[i + 1]) << 8;
- b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
- }
-}
-
-static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr)
-{
- u32 addrtmp[2] = { 0, 0, };
- u8 per_sta_keys_start = 8;
-
- if (b43_new_kidx_api(dev))
- per_sta_keys_start = 4;
-
- B43_WARN_ON(index < per_sta_keys_start);
- /* We have two default TX keys and possibly two default RX keys.
- * Physical mac 0 is mapped to physical key 4 or 8, depending
- * on the firmware version.
- * So we must adjust the index here.
- */
- index -= per_sta_keys_start;
-
- if (addr) {
- addrtmp[0] = addr[0];
- addrtmp[0] |= ((u32) (addr[1]) << 8);
- addrtmp[0] |= ((u32) (addr[2]) << 16);
- addrtmp[0] |= ((u32) (addr[3]) << 24);
- addrtmp[1] = addr[4];
- addrtmp[1] |= ((u32) (addr[5]) << 8);
- }
-
- if (dev->dev->id.revision >= 5) {
- /* Receive match transmitter address mechanism */
- b43_shm_write32(dev, B43_SHM_RCMTA,
- (index * 2) + 0, addrtmp[0]);
- b43_shm_write16(dev, B43_SHM_RCMTA,
- (index * 2) + 1, addrtmp[1]);
- } else {
- /* RXE (Receive Engine) and
- * PSM (Programmable State Machine) mechanism
- */
- if (index < 8) {
- /* TODO write to RCM 16, 19, 22 and 25 */
- } else {
- b43_shm_write32(dev, B43_SHM_SHARED,
- B43_SHM_SH_PSM + (index * 6) + 0,
- addrtmp[0]);
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_PSM + (index * 6) + 4,
- addrtmp[1]);
- }
- }
-}
-
-static void do_key_write(struct b43_wldev *dev,
- u8 index, u8 algorithm,
- const u8 * key, size_t key_len, const u8 * mac_addr)
-{
- u8 buf[B43_SEC_KEYSIZE] = { 0, };
- u8 per_sta_keys_start = 8;
-
- if (b43_new_kidx_api(dev))
- per_sta_keys_start = 4;
-
- B43_WARN_ON(index >= dev->max_nr_keys);
- B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
-
- if (index >= per_sta_keys_start)
- keymac_write(dev, index, NULL); /* First zero out mac. */
- if (key)
- memcpy(buf, key, key_len);
- key_write(dev, index, algorithm, buf);
- if (index >= per_sta_keys_start)
- keymac_write(dev, index, mac_addr);
-
- dev->key[index].algorithm = algorithm;
-}
-
-static int b43_key_write(struct b43_wldev *dev,
- int index, u8 algorithm,
- const u8 * key, size_t key_len,
- const u8 * mac_addr,
- struct ieee80211_key_conf *keyconf)
-{
- int i;
- int sta_keys_start;
-
- if (key_len > B43_SEC_KEYSIZE)
- return -EINVAL;
- for (i = 0; i < dev->max_nr_keys; i++) {
- /* Check that we don't already have this key. */
- B43_WARN_ON(dev->key[i].keyconf == keyconf);
- }
- if (index < 0) {
- /* Either pairwise key or address is 00:00:00:00:00:00
- * for transmit-only keys. Search the index. */
- if (b43_new_kidx_api(dev))
- sta_keys_start = 4;
- else
- sta_keys_start = 8;
- for (i = sta_keys_start; i < dev->max_nr_keys; i++) {
- if (!dev->key[i].keyconf) {
- /* found empty */
- index = i;
- break;
- }
- }
- if (index < 0) {
- b43err(dev->wl, "Out of hardware key memory\n");
- return -ENOSPC;
- }
- } else
- B43_WARN_ON(index > 3);
-
- do_key_write(dev, index, algorithm, key, key_len, mac_addr);
- if ((index <= 3) && !b43_new_kidx_api(dev)) {
- /* Default RX key */
- B43_WARN_ON(mac_addr);
- do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
- }
- keyconf->hw_key_idx = index;
- dev->key[index].keyconf = keyconf;
-
- return 0;
-}
-
-static int b43_key_clear(struct b43_wldev *dev, int index)
-{
- if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys)))
- return -EINVAL;
- do_key_write(dev, index, B43_SEC_ALGO_NONE,
- NULL, B43_SEC_KEYSIZE, NULL);
- if ((index <= 3) && !b43_new_kidx_api(dev)) {
- do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
- NULL, B43_SEC_KEYSIZE, NULL);
- }
- dev->key[index].keyconf = NULL;
-
- return 0;
-}
-
-static void b43_clear_keys(struct b43_wldev *dev)
-{
- int i;
-
- for (i = 0; i < dev->max_nr_keys; i++)
- b43_key_clear(dev, i);
-}
-
-void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
-{
- u32 macctl;
- u16 ucstat;
- bool hwps;
- bool awake;
- int i;
-
- B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
- (ps_flags & B43_PS_DISABLED));
- B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
-
- if (ps_flags & B43_PS_ENABLED) {
- hwps = 1;
- } else if (ps_flags & B43_PS_DISABLED) {
- hwps = 0;
- } else {
- //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
- // and thus is not an AP and we are associated, set bit 25
- }
- if (ps_flags & B43_PS_AWAKE) {
- awake = 1;
- } else if (ps_flags & B43_PS_ASLEEP) {
- awake = 0;
- } else {
- //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
- // or we are associated, or FIXME, or the latest PS-Poll packet sent was
- // successful, set bit26
- }
-
-/* FIXME: For now we force awake-on and hwps-off */
- hwps = 0;
- awake = 1;
-
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- if (hwps)
- macctl |= B43_MACCTL_HWPS;
- else
- macctl &= ~B43_MACCTL_HWPS;
- if (awake)
- macctl |= B43_MACCTL_AWAKE;
- else
- macctl &= ~B43_MACCTL_AWAKE;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
- /* Commit write */
- b43_read32(dev, B43_MMIO_MACCTL);
- if (awake && dev->dev->id.revision >= 5) {
- /* Wait for the microcode to wake up. */
- for (i = 0; i < 100; i++) {
- ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
- B43_SHM_SH_UCODESTAT);
- if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
- break;
- udelay(10);
- }
- }
-}
-
-/* Turn the Analog ON/OFF */
-static void b43_switch_analog(struct b43_wldev *dev, int on)
-{
- b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
-}
-
-void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
-{
- u32 tmslow;
- u32 macctl;
-
- flags |= B43_TMSLOW_PHYCLKEN;
- flags |= B43_TMSLOW_PHYRESET;
- ssb_device_enable(dev->dev, flags);
- msleep(2); /* Wait for the PLL to turn on. */
-
- /* Now take the PHY out of Reset again */
- tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
- tmslow |= SSB_TMSLOW_FGC;
- tmslow &= ~B43_TMSLOW_PHYRESET;
- ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
- ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
- msleep(1);
- tmslow &= ~SSB_TMSLOW_FGC;
- ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
- ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
- msleep(1);
-
- /* Turn Analog ON */
- b43_switch_analog(dev, 1);
-
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- macctl &= ~B43_MACCTL_GMODE;
- if (flags & B43_TMSLOW_GMODE)
- macctl |= B43_MACCTL_GMODE;
- macctl |= B43_MACCTL_IHR_ENABLED;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
-}
-
-static void handle_irq_transmit_status(struct b43_wldev *dev)
-{
- u32 v0, v1;
- u16 tmp;
- struct b43_txstatus stat;
-
- while (1) {
- v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
- if (!(v0 & 0x00000001))
- break;
- v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
-
- stat.cookie = (v0 >> 16);
- stat.seq = (v1 & 0x0000FFFF);
- stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
- tmp = (v0 & 0x0000FFFF);
- stat.frame_count = ((tmp & 0xF000) >> 12);
- stat.rts_count = ((tmp & 0x0F00) >> 8);
- stat.supp_reason = ((tmp & 0x001C) >> 2);
- stat.pm_indicated = !!(tmp & 0x0080);
- stat.intermediate = !!(tmp & 0x0040);
- stat.for_ampdu = !!(tmp & 0x0020);
- stat.acked = !!(tmp & 0x0002);
-
- b43_handle_txstatus(dev, &stat);
- }
-}
-
-static void drain_txstatus_queue(struct b43_wldev *dev)
-{
- u32 dummy;
-
- if (dev->dev->id.revision < 5)
- return;
- /* Read all entries from the microcode TXstatus FIFO
- * and throw them away.
- */
- while (1) {
- dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
- if (!(dummy & 0x00000001))
- break;
- dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
- }
-}
-
-static u32 b43_jssi_read(struct b43_wldev *dev)
-{
- u32 val = 0;
-
- val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
- val <<= 16;
- val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
-
- return val;
-}
-
-static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
-{
- b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
- b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
-}
-
-static void b43_generate_noise_sample(struct b43_wldev *dev)
-{
- b43_jssi_write(dev, 0x7F7F7F7F);
- b43_write32(dev, B43_MMIO_MACCMD,
- b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
- B43_WARN_ON(dev->noisecalc.channel_at_start != dev->phy.channel);
-}
-
-static void b43_calculate_link_quality(struct b43_wldev *dev)
-{
- /* Top half of Link Quality calculation. */
-
- if (dev->noisecalc.calculation_running)
- return;
- dev->noisecalc.channel_at_start = dev->phy.channel;
- dev->noisecalc.calculation_running = 1;
- dev->noisecalc.nr_samples = 0;
-
- b43_generate_noise_sample(dev);
-}
-
-static void handle_irq_noise(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- u16 tmp;
- u8 noise[4];
- u8 i, j;
- s32 average;
-
- /* Bottom half of Link Quality calculation. */
-
- B43_WARN_ON(!dev->noisecalc.calculation_running);
- if (dev->noisecalc.channel_at_start != phy->channel)
- goto drop_calculation;
- *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
- if (noise[0] == 0x7F || noise[1] == 0x7F ||
- noise[2] == 0x7F || noise[3] == 0x7F)
- goto generate_new;
-
- /* Get the noise samples. */
- B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
- i = dev->noisecalc.nr_samples;
- noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
- dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
- dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
- dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
- dev->noisecalc.nr_samples++;
- if (dev->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 += dev->noisecalc.samples[i][j];
- }
- average /= (8 * 4);
- average *= 125;
- average += 64;
- average /= 128;
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
- tmp = (tmp / 128) & 0x1F;
- if (tmp >= 8)
- average += 2;
- else
- average -= 25;
- if (tmp == 8)
- average -= 72;
- else
- average -= 48;
-
- dev->stats.link_noise = average;
- drop_calculation:
- dev->noisecalc.calculation_running = 0;
- return;
- }
- generate_new:
- b43_generate_noise_sample(dev);
-}
-
-static void handle_irq_tbtt_indication(struct b43_wldev *dev)
-{
- if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
- ///TODO: PS TBTT
- } else {
- if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
- b43_power_saving_ctl_bits(dev, 0);
- }
- if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
- dev->dfq_valid = 1;
-}
-
-static void handle_irq_atim_end(struct b43_wldev *dev)
-{
- if (dev->dfq_valid) {
- b43_write32(dev, B43_MMIO_MACCMD,
- b43_read32(dev, B43_MMIO_MACCMD)
- | B43_MACCMD_DFQ_VALID);
- dev->dfq_valid = 0;
- }
-}
-
-static void handle_irq_pmq(struct b43_wldev *dev)
-{
- u32 tmp;
-
- //TODO: AP mode.
-
- while (1) {
- tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
- if (!(tmp & 0x00000008))
- break;
- }
- /* 16bit write is odd, but correct. */
- b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
-}
-
-static void b43_write_template_common(struct b43_wldev *dev,
- const u8 * data, u16 size,
- u16 ram_offset,
- u16 shm_size_offset, u8 rate)
-{
- u32 i, tmp;
- struct b43_plcp_hdr4 plcp;
-
- plcp.data = 0;
- b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
- b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
- ram_offset += sizeof(u32);
- /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
- * So leave the first two bytes of the next write blank.
- */
- tmp = (u32) (data[0]) << 16;
- tmp |= (u32) (data[1]) << 24;
- b43_ram_write(dev, ram_offset, tmp);
- ram_offset += sizeof(u32);
- for (i = 2; i < size; i += sizeof(u32)) {
- tmp = (u32) (data[i + 0]);
- if (i + 1 < size)
- tmp |= (u32) (data[i + 1]) << 8;
- if (i + 2 < size)
- tmp |= (u32) (data[i + 2]) << 16;
- if (i + 3 < size)
- tmp |= (u32) (data[i + 3]) << 24;
- b43_ram_write(dev, ram_offset + i - 2, tmp);
- }
- b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
- size + sizeof(struct b43_plcp_hdr6));
-}
-
-static void b43_write_beacon_template(struct b43_wldev *dev,
- u16 ram_offset,
- u16 shm_size_offset, u8 rate)
-{
- unsigned int i, len, variable_len;
- const struct ieee80211_mgmt *bcn;
- const u8 *ie;
- bool tim_found = 0;
-
- bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
- len = min((size_t) dev->wl->current_beacon->len,
- 0x200 - sizeof(struct b43_plcp_hdr6));
-
- b43_write_template_common(dev, (const u8 *)bcn,
- len, ram_offset, shm_size_offset, rate);
-
- /* Find the position of the TIM and the DTIM_period value
- * and write them to SHM. */
- ie = bcn->u.beacon.variable;
- variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
- for (i = 0; i < variable_len - 2; ) {
- uint8_t ie_id, ie_len;
-
- ie_id = ie[i];
- ie_len = ie[i + 1];
- if (ie_id == 5) {
- u16 tim_position;
- u16 dtim_period;
- /* This is the TIM Information Element */
-
- /* Check whether the ie_len is in the beacon data range. */
- if (variable_len < ie_len + 2 + i)
- break;
- /* A valid TIM is at least 4 bytes long. */
- if (ie_len < 4)
- break;
- tim_found = 1;
-
- tim_position = sizeof(struct b43_plcp_hdr6);
- tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
- tim_position += i;
-
- dtim_period = ie[i + 3];
-
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_TIMBPOS, tim_position);
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_DTIMPER, dtim_period);
- break;
- }
- i += ie_len + 2;
- }
- if (!tim_found) {
- b43warn(dev->wl, "Did not find a valid TIM IE in "
- "the beacon template packet. AP or IBSS operation "
- "may be broken.\n");
- }
-}
-
-static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
- u16 shm_offset, u16 size,
- struct ieee80211_rate *rate)
-{
- struct b43_plcp_hdr4 plcp;
- u32 tmp;
- __le16 dur;
-
- plcp.data = 0;
- b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
- dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->vif, size,
- rate);
- /* Write PLCP in two parts and timing for packet transfer */
- tmp = le32_to_cpu(plcp.data);
- b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF);
- b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16);
- b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur));
-}
-
-/* Instead of using custom probe response template, this function
- * just patches custom beacon template by:
- * 1) Changing packet type
- * 2) Patching duration field
- * 3) Stripping TIM
- */
-static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
- u16 *dest_size,
- struct ieee80211_rate *rate)
-{
- const u8 *src_data;
- u8 *dest_data;
- u16 src_size, elem_size, src_pos, dest_pos;
- __le16 dur;
- struct ieee80211_hdr *hdr;
- size_t ie_start;
-
- src_size = dev->wl->current_beacon->len;
- src_data = (const u8 *)dev->wl->current_beacon->data;
-
- /* Get the start offset of the variable IEs in the packet. */
- ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
- B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable));
-
- if (B43_WARN_ON(src_size < ie_start))
- return NULL;
-
- dest_data = kmalloc(src_size, GFP_ATOMIC);
- if (unlikely(!dest_data))
- return NULL;
-
- /* Copy the static data and all Information Elements, except the TIM. */
- memcpy(dest_data, src_data, ie_start);
- src_pos = ie_start;
- dest_pos = ie_start;
- for ( ; src_pos < src_size - 2; src_pos += elem_size) {
- elem_size = src_data[src_pos + 1] + 2;
- if (src_data[src_pos] == 5) {
- /* This is the TIM. */
- continue;
- }
- memcpy(dest_data + dest_pos, src_data + src_pos,
- elem_size);
- dest_pos += elem_size;
- }
- *dest_size = dest_pos;
- hdr = (struct ieee80211_hdr *)dest_data;
-
- /* Set the frame control. */
- hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
- dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->vif, *dest_size,
- rate);
- hdr->duration_id = dur;
-
- return dest_data;
-}
-
-static void b43_write_probe_resp_template(struct b43_wldev *dev,
- u16 ram_offset,
- u16 shm_size_offset,
- struct ieee80211_rate *rate)
-{
- const u8 *probe_resp_data;
- u16 size;
-
- size = dev->wl->current_beacon->len;
- probe_resp_data = b43_generate_probe_resp(dev, &size, rate);
- if (unlikely(!probe_resp_data))
- return;
-
- /* Looks like PLCP headers plus packet timings are stored for
- * all possible basic rates
- */
- b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]);
- b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]);
- b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]);
- b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]);
-
- size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6));
- b43_write_template_common(dev, probe_resp_data,
- size, ram_offset, shm_size_offset,
- rate->hw_value);
- kfree(probe_resp_data);
-}
-
-/* Asynchronously update the packet templates in template RAM.
- * Locking: Requires wl->irq_lock to be locked. */
-static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
-{
- /* This is the top half of the ansynchronous beacon update.
- * The bottom half is the beacon IRQ.
- * Beacon update must be asynchronous to avoid sending an
- * invalid beacon. This can happen for example, if the firmware
- * transmits a beacon while we are updating it. */
-
- if (wl->current_beacon)
- dev_kfree_skb_any(wl->current_beacon);
- wl->current_beacon = beacon;
- wl->beacon0_uploaded = 0;
- wl->beacon1_uploaded = 0;
-}
-
-static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
-{
- u32 tmp;
- u16 i, len;
-
- len = min((u16) ssid_len, (u16) 0x100);
- for (i = 0; i < len; i += sizeof(u32)) {
- tmp = (u32) (ssid[i + 0]);
- if (i + 1 < len)
- tmp |= (u32) (ssid[i + 1]) << 8;
- if (i + 2 < len)
- tmp |= (u32) (ssid[i + 2]) << 16;
- if (i + 3 < len)
- tmp |= (u32) (ssid[i + 3]) << 24;
- b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp);
- }
- b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len);
-}
-
-static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
-{
- b43_time_lock(dev);
- if (dev->dev->id.revision >= 3) {
- b43_write32(dev, 0x188, (beacon_int << 16));
- } else {
- b43_write16(dev, 0x606, (beacon_int >> 6));
- b43_write16(dev, 0x610, beacon_int);
- }
- b43_time_unlock(dev);
-}
-
-static void handle_irq_beacon(struct b43_wldev *dev)
-{
- struct b43_wl *wl = dev->wl;
- u32 cmd;
-
- if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
- return;
-
- /* This is the bottom half of the asynchronous beacon update. */
-
- cmd = b43_read32(dev, B43_MMIO_MACCMD);
- if (!(cmd & B43_MACCMD_BEACON0_VALID)) {
- if (!wl->beacon0_uploaded) {
- b43_write_beacon_template(dev, 0x68, 0x18,
- B43_CCK_RATE_1MB);
- b43_write_probe_resp_template(dev, 0x268, 0x4A,
- &__b43_ratetable[3]);
- wl->beacon0_uploaded = 1;
- }
- cmd |= B43_MACCMD_BEACON0_VALID;
- }
- if (!(cmd & B43_MACCMD_BEACON1_VALID)) {
- if (!wl->beacon1_uploaded) {
- b43_write_beacon_template(dev, 0x468, 0x1A,
- B43_CCK_RATE_1MB);
- wl->beacon1_uploaded = 1;
- }
- cmd |= B43_MACCMD_BEACON1_VALID;
- }
- b43_write32(dev, B43_MMIO_MACCMD, cmd);
-}
-
-static void handle_irq_ucode_debug(struct b43_wldev *dev)
-{
- //TODO
-}
-
-/* Interrupt handler bottom-half */
-static void b43_interrupt_tasklet(struct b43_wldev *dev)
-{
- u32 reason;
- u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
- u32 merged_dma_reason = 0;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&dev->wl->irq_lock, flags);
-
- B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED);
-
- reason = dev->irq_reason;
- for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
- dma_reason[i] = dev->dma_reason[i];
- merged_dma_reason |= dma_reason[i];
- }
-
- if (unlikely(reason & B43_IRQ_MAC_TXERR))
- b43err(dev->wl, "MAC transmission error\n");
-
- if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
- b43err(dev->wl, "PHY transmission error\n");
- rmb();
- if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
- atomic_set(&dev->phy.txerr_cnt,
- B43_PHY_TX_BADNESS_LIMIT);
- b43err(dev->wl, "Too many PHY TX errors, "
- "restarting the controller\n");
- b43_controller_restart(dev, "PHY TX errors");
- }
- }
-
- if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
- B43_DMAIRQ_NONFATALMASK))) {
- if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
- b43err(dev->wl, "Fatal DMA error: "
- "0x%08X, 0x%08X, 0x%08X, "
- "0x%08X, 0x%08X, 0x%08X\n",
- dma_reason[0], dma_reason[1],
- dma_reason[2], dma_reason[3],
- dma_reason[4], dma_reason[5]);
- b43_controller_restart(dev, "DMA error");
- mmiowb();
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
- return;
- }
- if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
- b43err(dev->wl, "DMA error: "
- "0x%08X, 0x%08X, 0x%08X, "
- "0x%08X, 0x%08X, 0x%08X\n",
- dma_reason[0], dma_reason[1],
- dma_reason[2], dma_reason[3],
- dma_reason[4], dma_reason[5]);
- }
- }
-
- if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
- handle_irq_ucode_debug(dev);
- if (reason & B43_IRQ_TBTT_INDI)
- handle_irq_tbtt_indication(dev);
- if (reason & B43_IRQ_ATIM_END)
- handle_irq_atim_end(dev);
- if (reason & B43_IRQ_BEACON)
- handle_irq_beacon(dev);
- if (reason & B43_IRQ_PMQ)
- handle_irq_pmq(dev);
- if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
- ;/* TODO */
- if (reason & B43_IRQ_NOISESAMPLE_OK)
- handle_irq_noise(dev);
-
- /* Check the DMA reason registers for received data. */
- if (dma_reason[0] & B43_DMAIRQ_RX_DONE)
- b43_dma_rx(dev->dma.rx_ring0);
- if (dma_reason[3] & B43_DMAIRQ_RX_DONE)
- b43_dma_rx(dev->dma.rx_ring3);
- B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
- B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
- B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
- B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
-
- if (reason & B43_IRQ_TX_OK)
- handle_irq_transmit_status(dev);
-
- b43_interrupt_enable(dev, dev->irq_savedstate);
- mmiowb();
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
-}
-
-static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason)
-{
- b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
-
- b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
- b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
- b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
- b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
- b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
- b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
-}
-
-/* Interrupt handler top-half */
-static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
-{
- irqreturn_t ret = IRQ_NONE;
- struct b43_wldev *dev = dev_id;
- u32 reason;
-
- if (!dev)
- return IRQ_NONE;
-
- spin_lock(&dev->wl->irq_lock);
-
- if (b43_status(dev) < B43_STAT_STARTED)
- goto out;
- reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
- if (reason == 0xffffffff) /* shared IRQ */
- goto out;
- ret = IRQ_HANDLED;
- reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
- if (!reason)
- goto out;
-
- dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
- & 0x0001DC00;
- dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
- & 0x0000DC00;
- dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
- & 0x0000DC00;
- dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
- & 0x0001DC00;
- dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
- & 0x0000DC00;
- dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
- & 0x0000DC00;
-
- b43_interrupt_ack(dev, reason);
- /* disable all IRQs. They are enabled again in the bottom half. */
- dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
- /* save the reason code and call our bottom half. */
- dev->irq_reason = reason;
- tasklet_schedule(&dev->isr_tasklet);
- out:
- mmiowb();
- spin_unlock(&dev->wl->irq_lock);
-
- return ret;
-}
-
-static void do_release_fw(struct b43_firmware_file *fw)
-{
- release_firmware(fw->data);
- fw->data = NULL;
- fw->filename = NULL;
-}
-
-static void b43_release_firmware(struct b43_wldev *dev)
-{
- do_release_fw(&dev->fw.ucode);
- do_release_fw(&dev->fw.pcm);
- do_release_fw(&dev->fw.initvals);
- do_release_fw(&dev->fw.initvals_band);
-}
-
-static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
-{
- const char *text;
-
- text = "You must go to "
- "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware "
- "and download the latest firmware (version 4).\n";
- if (error)
- b43err(wl, text);
- else
- b43warn(wl, text);
-}
-
-static int do_request_fw(struct b43_wldev *dev,
- const char *name,
- struct b43_firmware_file *fw)
-{
- char path[sizeof(modparam_fwpostfix) + 32];
- const struct firmware *blob;
- struct b43_fw_header *hdr;
- u32 size;
- int err;
-
- if (!name) {
- /* Don't fetch anything. Free possibly cached firmware. */
- do_release_fw(fw);
- return 0;
- }
- if (fw->filename) {
- if (strcmp(fw->filename, name) == 0)
- return 0; /* Already have this fw. */
- /* Free the cached firmware first. */
- do_release_fw(fw);
- }
-
- snprintf(path, ARRAY_SIZE(path),
- "b43%s/%s.fw",
- modparam_fwpostfix, name);
- err = request_firmware(&blob, path, dev->dev->dev);
- if (err) {
- b43err(dev->wl, "Firmware file \"%s\" not found "
- "or load failed.\n", path);
- return err;
- }
- if (blob->size < sizeof(struct b43_fw_header))
- goto err_format;
- hdr = (struct b43_fw_header *)(blob->data);
- switch (hdr->type) {
- case B43_FW_TYPE_UCODE:
- case B43_FW_TYPE_PCM:
- size = be32_to_cpu(hdr->size);
- if (size != blob->size - sizeof(struct b43_fw_header))
- goto err_format;
- /* fallthrough */
- case B43_FW_TYPE_IV:
- if (hdr->ver != 1)
- goto err_format;
- break;
- default:
- goto err_format;
- }
-
- fw->data = blob;
- fw->filename = name;
-
- return 0;
-
-err_format:
- b43err(dev->wl, "Firmware file \"%s\" format error.\n", path);
- release_firmware(blob);
-
- return -EPROTO;
-}
-
-static int b43_request_firmware(struct b43_wldev *dev)
-{
- struct b43_firmware *fw = &dev->fw;
- const u8 rev = dev->dev->id.revision;
- const char *filename;
- u32 tmshigh;
- int err;
-
- /* Get microcode */
- tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
- if ((rev >= 5) && (rev <= 10))
- filename = "ucode5";
- else if ((rev >= 11) && (rev <= 12))
- filename = "ucode11";
- else if (rev >= 13)
- filename = "ucode13";
- else
- goto err_no_ucode;
- err = do_request_fw(dev, filename, &fw->ucode);
- if (err)
- goto err_load;
-
- /* Get PCM code */
- if ((rev >= 5) && (rev <= 10))
- filename = "pcm5";
- else if (rev >= 11)
- filename = NULL;
- else
- goto err_no_pcm;
- err = do_request_fw(dev, filename, &fw->pcm);
- if (err)
- goto err_load;
-
- /* Get initvals */
- switch (dev->phy.type) {
- case B43_PHYTYPE_A:
- if ((rev >= 5) && (rev <= 10)) {
- if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
- filename = "a0g1initvals5";
- else
- filename = "a0g0initvals5";
- } else
- goto err_no_initvals;
- break;
- case B43_PHYTYPE_G:
- if ((rev >= 5) && (rev <= 10))
- filename = "b0g0initvals5";
- else if (rev >= 13)
- filename = "lp0initvals13";
- else
- goto err_no_initvals;
- break;
- case B43_PHYTYPE_N:
- if ((rev >= 11) && (rev <= 12))
- filename = "n0initvals11";
- else
- goto err_no_initvals;
- break;
- default:
- goto err_no_initvals;
- }
- err = do_request_fw(dev, filename, &fw->initvals);
- if (err)
- goto err_load;
-
- /* Get bandswitch initvals */
- switch (dev->phy.type) {
- case B43_PHYTYPE_A:
- if ((rev >= 5) && (rev <= 10)) {
- if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
- filename = "a0g1bsinitvals5";
- else
- filename = "a0g0bsinitvals5";
- } else if (rev >= 11)
- filename = NULL;
- else
- goto err_no_initvals;
- break;
- case B43_PHYTYPE_G:
- if ((rev >= 5) && (rev <= 10))
- filename = "b0g0bsinitvals5";
- else if (rev >= 11)
- filename = NULL;
- else
- goto err_no_initvals;
- break;
- case B43_PHYTYPE_N:
- if ((rev >= 11) && (rev <= 12))
- filename = "n0bsinitvals11";
- else
- goto err_no_initvals;
- break;
- default:
- goto err_no_initvals;
- }
- err = do_request_fw(dev, filename, &fw->initvals_band);
- if (err)
- goto err_load;
-
- return 0;
-
-err_load:
- b43_print_fw_helptext(dev->wl, 1);
- goto error;
-
-err_no_ucode:
- err = -ENODEV;
- b43err(dev->wl, "No microcode available for core rev %u\n", rev);
- goto error;
-
-err_no_pcm:
- err = -ENODEV;
- b43err(dev->wl, "No PCM available for core rev %u\n", rev);
- goto error;
-
-err_no_initvals:
- err = -ENODEV;
- b43err(dev->wl, "No Initial Values firmware file for PHY %u, "
- "core rev %u\n", dev->phy.type, rev);
- goto error;
-
-error:
- b43_release_firmware(dev);
- return err;
-}
-
-static int b43_upload_microcode(struct b43_wldev *dev)
-{
- const size_t hdr_len = sizeof(struct b43_fw_header);
- const __be32 *data;
- unsigned int i, len;
- u16 fwrev, fwpatch, fwdate, fwtime;
- u32 tmp, macctl;
- int err = 0;
-
- /* Jump the microcode PSM to offset 0 */
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
- macctl |= B43_MACCTL_PSM_JMP0;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
- /* Zero out all microcode PSM registers and shared memory. */
- for (i = 0; i < 64; i++)
- b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
- for (i = 0; i < 4096; i += 2)
- b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
-
- /* Upload Microcode. */
- data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
- len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
- b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
- for (i = 0; i < len; i++) {
- b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
- udelay(10);
- }
-
- if (dev->fw.pcm.data) {
- /* Upload PCM data. */
- data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
- len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
- b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
- b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
- /* No need for autoinc bit in SHM_HW */
- b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
- for (i = 0; i < len; i++) {
- b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
- udelay(10);
- }
- }
-
- b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
-
- /* Start the microcode PSM */
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- macctl &= ~B43_MACCTL_PSM_JMP0;
- macctl |= B43_MACCTL_PSM_RUN;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
-
- /* Wait for the microcode to load and respond */
- i = 0;
- while (1) {
- tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
- if (tmp == B43_IRQ_MAC_SUSPENDED)
- break;
- i++;
- if (i >= 20) {
- b43err(dev->wl, "Microcode not responding\n");
- b43_print_fw_helptext(dev->wl, 1);
- err = -ENODEV;
- goto error;
- }
- msleep_interruptible(50);
- if (signal_pending(current)) {
- err = -EINTR;
- goto error;
- }
- }
- b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
-
- /* Get and check the revisions. */
- fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
- fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
- fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
- fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
-
- if (fwrev <= 0x128) {
- b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
- "binary drivers older than version 4.x is unsupported. "
- "You must upgrade your firmware files.\n");
- b43_print_fw_helptext(dev->wl, 1);
- err = -EOPNOTSUPP;
- goto error;
- }
- b43dbg(dev->wl, "Loading firmware version %u.%u "
- "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
- fwrev, fwpatch,
- (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
- (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
-
- dev->fw.rev = fwrev;
- dev->fw.patch = fwpatch;
-
- if (b43_is_old_txhdr_format(dev)) {
- b43warn(dev->wl, "You are using an old firmware image. "
- "Support for old firmware will be removed in July 2008.\n");
- b43_print_fw_helptext(dev->wl, 0);
- }
-
- return 0;
-
-error:
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- macctl &= ~B43_MACCTL_PSM_RUN;
- macctl |= B43_MACCTL_PSM_JMP0;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
-
- return err;
-}
-
-static int b43_write_initvals(struct b43_wldev *dev,
- const struct b43_iv *ivals,
- size_t count,
- size_t array_size)
-{
- const struct b43_iv *iv;
- u16 offset;
- size_t i;
- bool bit32;
-
- BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
- iv = ivals;
- for (i = 0; i < count; i++) {
- if (array_size < sizeof(iv->offset_size))
- goto err_format;
- array_size -= sizeof(iv->offset_size);
- offset = be16_to_cpu(iv->offset_size);
- bit32 = !!(offset & B43_IV_32BIT);
- offset &= B43_IV_OFFSET_MASK;
- if (offset >= 0x1000)
- goto err_format;
- if (bit32) {
- u32 value;
-
- if (array_size < sizeof(iv->data.d32))
- goto err_format;
- array_size -= sizeof(iv->data.d32);
-
- value = be32_to_cpu(get_unaligned(&iv->data.d32));
- b43_write32(dev, offset, value);
-
- iv = (const struct b43_iv *)((const uint8_t *)iv +
- sizeof(__be16) +
- sizeof(__be32));
- } else {
- u16 value;
-
- if (array_size < sizeof(iv->data.d16))
- goto err_format;
- array_size -= sizeof(iv->data.d16);
-
- value = be16_to_cpu(iv->data.d16);
- b43_write16(dev, offset, value);
-
- iv = (const struct b43_iv *)((const uint8_t *)iv +
- sizeof(__be16) +
- sizeof(__be16));
- }
- }
- if (array_size)
- goto err_format;
-
- return 0;
-
-err_format:
- b43err(dev->wl, "Initial Values Firmware file-format error.\n");
- b43_print_fw_helptext(dev->wl, 1);
-
- return -EPROTO;
-}
-
-static int b43_upload_initvals(struct b43_wldev *dev)
-{
- const size_t hdr_len = sizeof(struct b43_fw_header);
- const struct b43_fw_header *hdr;
- struct b43_firmware *fw = &dev->fw;
- const struct b43_iv *ivals;
- size_t count;
- int err;
-
- hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
- ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
- count = be32_to_cpu(hdr->size);
- err = b43_write_initvals(dev, ivals, count,
- fw->initvals.data->size - hdr_len);
- if (err)
- goto out;
- if (fw->initvals_band.data) {
- hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
- ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
- count = be32_to_cpu(hdr->size);
- err = b43_write_initvals(dev, ivals, count,
- fw->initvals_band.data->size - hdr_len);
- if (err)
- goto out;
- }
-out:
-
- return err;
-}
-
-/* Initialize the GPIOs
- * http://bcm-specs.sipsolutions.net/GPIO
- */
-static int b43_gpio_init(struct b43_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_device *gpiodev, *pcidev = NULL;
- u32 mask, set;
-
- b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
- & ~B43_MACCTL_GPOUTSMSK);
-
- b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
- | 0x000F);
-
- mask = 0x0000001F;
- set = 0x0000000F;
- if (dev->dev->bus->chip_id == 0x4301) {
- mask |= 0x0060;
- set |= 0x0060;
- }
- if (0 /* FIXME: conditional unknown */ ) {
- b43_write16(dev, B43_MMIO_GPIO_MASK,
- b43_read16(dev, B43_MMIO_GPIO_MASK)
- | 0x0100);
- mask |= 0x0180;
- set |= 0x0180;
- }
- if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) {
- b43_write16(dev, B43_MMIO_GPIO_MASK,
- b43_read16(dev, B43_MMIO_GPIO_MASK)
- | 0x0200);
- mask |= 0x0200;
- set |= 0x0200;
- }
- if (dev->dev->id.revision >= 2)
- mask |= 0x0010; /* FIXME: This is redundant. */
-
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- pcidev = bus->pcicore.dev;
-#endif
- gpiodev = bus->chipco.dev ? : pcidev;
- if (!gpiodev)
- return 0;
- ssb_write32(gpiodev, B43_GPIO_CONTROL,
- (ssb_read32(gpiodev, B43_GPIO_CONTROL)
- & mask) | set);
-
- return 0;
-}
-
-/* Turn off all GPIO stuff. Call this on module unload, for example. */
-static void b43_gpio_cleanup(struct b43_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_device *gpiodev, *pcidev = NULL;
-
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- pcidev = bus->pcicore.dev;
-#endif
- gpiodev = bus->chipco.dev ? : pcidev;
- if (!gpiodev)
- return;
- ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
-}
-
-/* http://bcm-specs.sipsolutions.net/EnableMac */
-void b43_mac_enable(struct b43_wldev *dev)
-{
- dev->mac_suspended--;
- B43_WARN_ON(dev->mac_suspended < 0);
- B43_WARN_ON(irqs_disabled());
- if (dev->mac_suspended == 0) {
- b43_write32(dev, B43_MMIO_MACCTL,
- b43_read32(dev, B43_MMIO_MACCTL)
- | B43_MACCTL_ENABLED);
- b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
- B43_IRQ_MAC_SUSPENDED);
- /* Commit writes */
- b43_read32(dev, B43_MMIO_MACCTL);
- b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
- b43_power_saving_ctl_bits(dev, 0);
-
- /* Re-enable IRQs. */
- spin_lock_irq(&dev->wl->irq_lock);
- b43_interrupt_enable(dev, dev->irq_savedstate);
- spin_unlock_irq(&dev->wl->irq_lock);
- }
-}
-
-/* http://bcm-specs.sipsolutions.net/SuspendMAC */
-void b43_mac_suspend(struct b43_wldev *dev)
-{
- int i;
- u32 tmp;
-
- might_sleep();
- B43_WARN_ON(irqs_disabled());
- B43_WARN_ON(dev->mac_suspended < 0);
-
- if (dev->mac_suspended == 0) {
- /* Mask IRQs before suspending MAC. Otherwise
- * the MAC stays busy and won't suspend. */
- spin_lock_irq(&dev->wl->irq_lock);
- tmp = b43_interrupt_disable(dev, B43_IRQ_ALL);
- spin_unlock_irq(&dev->wl->irq_lock);
- b43_synchronize_irq(dev);
- dev->irq_savedstate = tmp;
-
- b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
- b43_write32(dev, B43_MMIO_MACCTL,
- b43_read32(dev, B43_MMIO_MACCTL)
- & ~B43_MACCTL_ENABLED);
- /* force pci to flush the write */
- b43_read32(dev, B43_MMIO_MACCTL);
- for (i = 40; i; i--) {
- tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
- if (tmp & B43_IRQ_MAC_SUSPENDED)
- goto out;
- msleep(1);
- }
- b43err(dev->wl, "MAC suspend failed\n");
- }
-out:
- dev->mac_suspended++;
-}
-
-static void b43_adjust_opmode(struct b43_wldev *dev)
-{
- struct b43_wl *wl = dev->wl;
- u32 ctl;
- u16 cfp_pretbtt;
-
- ctl = b43_read32(dev, B43_MMIO_MACCTL);
- /* Reset status to STA infrastructure mode. */
- ctl &= ~B43_MACCTL_AP;
- ctl &= ~B43_MACCTL_KEEP_CTL;
- ctl &= ~B43_MACCTL_KEEP_BADPLCP;
- ctl &= ~B43_MACCTL_KEEP_BAD;
- ctl &= ~B43_MACCTL_PROMISC;
- ctl &= ~B43_MACCTL_BEACPROMISC;
- ctl |= B43_MACCTL_INFRA;
-
- if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
- ctl |= B43_MACCTL_AP;
- else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS))
- ctl &= ~B43_MACCTL_INFRA;
-
- if (wl->filter_flags & FIF_CONTROL)
- ctl |= B43_MACCTL_KEEP_CTL;
- if (wl->filter_flags & FIF_FCSFAIL)
- ctl |= B43_MACCTL_KEEP_BAD;
- if (wl->filter_flags & FIF_PLCPFAIL)
- ctl |= B43_MACCTL_KEEP_BADPLCP;
- if (wl->filter_flags & FIF_PROMISC_IN_BSS)
- ctl |= B43_MACCTL_PROMISC;
- if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
- ctl |= B43_MACCTL_BEACPROMISC;
-
- /* Workaround: On old hardware the HW-MAC-address-filter
- * doesn't work properly, so always run promisc in filter
- * it in software. */
- if (dev->dev->id.revision <= 4)
- ctl |= B43_MACCTL_PROMISC;
-
- b43_write32(dev, B43_MMIO_MACCTL, ctl);
-
- cfp_pretbtt = 2;
- if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
- if (dev->dev->bus->chip_id == 0x4306 &&
- dev->dev->bus->chip_rev == 3)
- cfp_pretbtt = 100;
- else
- cfp_pretbtt = 50;
- }
- b43_write16(dev, 0x612, cfp_pretbtt);
-}
-
-static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
-{
- u16 offset;
-
- if (is_ofdm) {
- offset = 0x480;
- offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
- } else {
- offset = 0x4C0;
- offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
- }
- b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
- b43_shm_read16(dev, B43_SHM_SHARED, offset));
-}
-
-static void b43_rate_memory_init(struct b43_wldev *dev)
-{
- switch (dev->phy.type) {
- case B43_PHYTYPE_A:
- case B43_PHYTYPE_G:
- case B43_PHYTYPE_N:
- b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
- b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
- b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
- b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
- b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
- b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
- b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
- if (dev->phy.type == B43_PHYTYPE_A)
- break;
- /* fallthrough */
- case B43_PHYTYPE_B:
- b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
- b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
- b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
- b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
- break;
- default:
- B43_WARN_ON(1);
- }
-}
-
-/* Set the TX-Antenna for management frames sent by firmware. */
-static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
-{
- u16 ant = 0;
- u16 tmp;
-
- switch (antenna) {
- case B43_ANTENNA0:
- ant |= B43_TXH_PHY_ANT0;
- break;
- case B43_ANTENNA1:
- ant |= B43_TXH_PHY_ANT1;
- break;
- case B43_ANTENNA2:
- ant |= B43_TXH_PHY_ANT2;
- break;
- case B43_ANTENNA3:
- ant |= B43_TXH_PHY_ANT3;
- break;
- case B43_ANTENNA_AUTO:
- ant |= B43_TXH_PHY_ANT01AUTO;
- break;
- default:
- B43_WARN_ON(1);
- }
-
- /* FIXME We also need to set the other flags of the PHY control field somewhere. */
-
- /* For Beacons */
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
- tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, tmp);
- /* For ACK/CTS */
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
- tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
- /* For Probe Resposes */
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
- tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
-}
-
-/* This is the opposite of b43_chip_init() */
-static void b43_chip_exit(struct b43_wldev *dev)
-{
- b43_radio_turn_off(dev, 1);
- b43_gpio_cleanup(dev);
- /* firmware is released later */
-}
-
-/* Initialize the chip
- * http://bcm-specs.sipsolutions.net/ChipInit
- */
-static int b43_chip_init(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- int err, tmp;
- u32 value32, macctl;
- u16 value16;
-
- /* Initialize the MAC control */
- macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
- if (dev->phy.gmode)
- macctl |= B43_MACCTL_GMODE;
- macctl |= B43_MACCTL_INFRA;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
-
- err = b43_request_firmware(dev);
- if (err)
- goto out;
- err = b43_upload_microcode(dev);
- if (err)
- goto out; /* firmware is released later */
-
- err = b43_gpio_init(dev);
- if (err)
- goto out; /* firmware is released later */
-
- err = b43_upload_initvals(dev);
- if (err)
- goto err_gpio_clean;
- b43_radio_turn_on(dev);
-
- b43_write16(dev, 0x03E6, 0x0000);
- err = b43_phy_init(dev);
- if (err)
- goto err_radio_off;
-
- /* Select initial Interference Mitigation. */
- tmp = phy->interfmode;
- phy->interfmode = B43_INTERFMODE_NONE;
- b43_radio_set_interference_mitigation(dev, tmp);
-
- b43_set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
- b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
-
- if (phy->type == B43_PHYTYPE_B) {
- value16 = b43_read16(dev, 0x005E);
- value16 |= 0x0004;
- b43_write16(dev, 0x005E, value16);
- }
- b43_write32(dev, 0x0100, 0x01000000);
- if (dev->dev->id.revision < 5)
- b43_write32(dev, 0x010C, 0x01000000);
-
- b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
- & ~B43_MACCTL_INFRA);
- b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
- | B43_MACCTL_INFRA);
-
- /* Probe Response Timeout value */
- /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
-
- /* Initially set the wireless operation mode. */
- b43_adjust_opmode(dev);
-
- if (dev->dev->id.revision < 3) {
- b43_write16(dev, 0x060E, 0x0000);
- b43_write16(dev, 0x0610, 0x8000);
- b43_write16(dev, 0x0604, 0x0000);
- b43_write16(dev, 0x0606, 0x0200);
- } else {
- b43_write32(dev, 0x0188, 0x80000000);
- b43_write32(dev, 0x018C, 0x02000000);
- }
- b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
- b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
- b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
- b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
- b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
- b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
- b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
-
- value32 = ssb_read32(dev->dev, SSB_TMSLOW);
- value32 |= 0x00100000;
- ssb_write32(dev->dev, SSB_TMSLOW, value32);
-
- b43_write16(dev, B43_MMIO_POWERUP_DELAY,
- dev->dev->bus->chipco.fast_pwrup_delay);
-
- err = 0;
- b43dbg(dev->wl, "Chip initialized\n");
-out:
- return err;
-
-err_radio_off:
- b43_radio_turn_off(dev, 1);
-err_gpio_clean:
- b43_gpio_cleanup(dev);
- return err;
-}
-
-static void b43_periodic_every120sec(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
-
- if (phy->type != B43_PHYTYPE_G || phy->rev < 2)
- return;
-
- b43_mac_suspend(dev);
- b43_lo_g_measure(dev);
- b43_mac_enable(dev);
- if (b43_has_hardware_pctl(phy))
- b43_lo_g_ctl_mark_all_unused(dev);
-}
-
-static void b43_periodic_every60sec(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
-
- if (phy->type != B43_PHYTYPE_G)
- return;
- if (!b43_has_hardware_pctl(phy))
- b43_lo_g_ctl_mark_all_unused(dev);
- if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI) {
- b43_mac_suspend(dev);
- b43_calc_nrssi_slope(dev);
- if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
- u8 old_chan = phy->channel;
-
- /* VCO Calibration */
- if (old_chan >= 8)
- b43_radio_selectchannel(dev, 1, 0);
- else
- b43_radio_selectchannel(dev, 13, 0);
- b43_radio_selectchannel(dev, old_chan, 0);
- }
- b43_mac_enable(dev);
- }
-}
-
-static void b43_periodic_every30sec(struct b43_wldev *dev)
-{
- /* Update device statistics. */
- b43_calculate_link_quality(dev);
-}
-
-static void b43_periodic_every15sec(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
-
- if (phy->type == B43_PHYTYPE_G) {
- //TODO: update_aci_moving_average
- if (phy->aci_enable && phy->aci_wlan_automatic) {
- b43_mac_suspend(dev);
- if (!phy->aci_enable && 1 /*TODO: not scanning? */ ) {
- if (0 /*TODO: bunch of conditions */ ) {
- b43_radio_set_interference_mitigation
- (dev, B43_INTERFMODE_MANUALWLAN);
- }
- } else if (1 /*TODO*/) {
- /*
- if ((aci_average > 1000) && !(b43_radio_aci_scan(dev))) {
- b43_radio_set_interference_mitigation(dev,
- B43_INTERFMODE_NONE);
- }
- */
- }
- b43_mac_enable(dev);
- } else if (phy->interfmode == B43_INTERFMODE_NONWLAN &&
- phy->rev == 1) {
- //TODO: implement rev1 workaround
- }
- }
- b43_phy_xmitpower(dev); //FIXME: unless scanning?
- //TODO for APHY (temperature?)
-
- atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
- wmb();
-}
-
-static void do_periodic_work(struct b43_wldev *dev)
-{
- unsigned int state;
-
- state = dev->periodic_state;
- if (state % 8 == 0)
- b43_periodic_every120sec(dev);
- if (state % 4 == 0)
- b43_periodic_every60sec(dev);
- if (state % 2 == 0)
- b43_periodic_every30sec(dev);
- b43_periodic_every15sec(dev);
-}
-
-/* Periodic work locking policy:
- * The whole periodic work handler is protected by
- * wl->mutex. If another lock is needed somewhere in the
- * pwork callchain, it's aquired in-place, where it's needed.
- */
-static void b43_periodic_work_handler(struct work_struct *work)
-{
- struct b43_wldev *dev = container_of(work, struct b43_wldev,
- periodic_work.work);
- struct b43_wl *wl = dev->wl;
- unsigned long delay;
-
- mutex_lock(&wl->mutex);
-
- if (unlikely(b43_status(dev) != B43_STAT_STARTED))
- goto out;
- if (b43_debug(dev, B43_DBG_PWORK_STOP))
- goto out_requeue;
-
- do_periodic_work(dev);
-
- dev->periodic_state++;
-out_requeue:
- if (b43_debug(dev, B43_DBG_PWORK_FAST))
- delay = msecs_to_jiffies(50);
- else
- delay = round_jiffies_relative(HZ * 15);
- queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay);
-out:
- mutex_unlock(&wl->mutex);
-}
-
-static void b43_periodic_tasks_setup(struct b43_wldev *dev)
-{
- struct delayed_work *work = &dev->periodic_work;
-
- dev->periodic_state = 0;
- INIT_DELAYED_WORK(work, b43_periodic_work_handler);
- queue_delayed_work(dev->wl->hw->workqueue, work, 0);
-}
-
-/* Check if communication with the device works correctly. */
-static int b43_validate_chipaccess(struct b43_wldev *dev)
-{
- u32 v, backup;
-
- backup = b43_shm_read32(dev, B43_SHM_SHARED, 0);
-
- /* Check for read/write and endianness problems. */
- b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
- if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
- goto error;
- b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
- if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
- goto error;
-
- b43_shm_write32(dev, B43_SHM_SHARED, 0, backup);
-
- if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) {
- /* The 32bit register shadows the two 16bit registers
- * with update sideeffects. Validate this. */
- b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
- b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
- if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
- goto error;
- if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
- goto error;
- }
- b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
-
- v = b43_read32(dev, B43_MMIO_MACCTL);
- v |= B43_MACCTL_GMODE;
- if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
- goto error;
-
- return 0;
-error:
- b43err(dev->wl, "Failed to validate the chipaccess\n");
- return -ENODEV;
-}
-
-static void b43_security_init(struct b43_wldev *dev)
-{
- dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
- B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
- dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
- /* KTP is a word address, but we address SHM bytewise.
- * So multiply by two.
- */
- dev->ktp *= 2;
- if (dev->dev->id.revision >= 5) {
- /* Number of RCMTA address slots */
- b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8);
- }
- b43_clear_keys(dev);
-}
-
-static int b43_rng_read(struct hwrng *rng, u32 * data)
-{
- struct b43_wl *wl = (struct b43_wl *)rng->priv;
- unsigned long flags;
-
- /* Don't take wl->mutex here, as it could deadlock with
- * hwrng internal locking. It's not needed to take
- * wl->mutex here, anyway. */
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- *data = b43_read16(wl->current_dev, B43_MMIO_RNG);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return (sizeof(u16));
-}
-
-static void b43_rng_exit(struct b43_wl *wl)
-{
- if (wl->rng_initialized)
- hwrng_unregister(&wl->rng);
-}
-
-static int b43_rng_init(struct b43_wl *wl)
-{
- int err;
-
- snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
- "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
- wl->rng.name = wl->rng_name;
- wl->rng.data_read = b43_rng_read;
- wl->rng.priv = (unsigned long)wl;
- wl->rng_initialized = 1;
- err = hwrng_register(&wl->rng);
- if (err) {
- wl->rng_initialized = 0;
- b43err(wl, "Failed to register the random "
- "number generator (%d)\n", err);
- }
-
- return err;
-}
-
-static int b43_op_tx(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_control *ctl)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
- int err = -ENODEV;
-
- if (unlikely(!dev))
- goto out;
- if (unlikely(b43_status(dev) < B43_STAT_STARTED))
- goto out;
- /* DMA-TX is done without a global lock. */
- err = b43_dma_tx(dev, skb, ctl);
-out:
- if (unlikely(err))
- return NETDEV_TX_BUSY;
- return NETDEV_TX_OK;
-}
-
-static int b43_op_conf_tx(struct ieee80211_hw *hw,
- int queue,
- const struct ieee80211_tx_queue_params *params)
-{
- return 0;
-}
-
-static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
- struct ieee80211_tx_queue_stats *stats)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
- unsigned long flags;
- int err = -ENODEV;
-
- if (!dev)
- goto out;
- spin_lock_irqsave(&wl->irq_lock, flags);
- if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
- b43_dma_get_tx_stats(dev, stats);
- err = 0;
- }
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-out:
- return err;
-}
-
-static int b43_op_get_stats(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- unsigned long flags;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- memcpy(stats, &wl->ieee_stats, sizeof(*stats));
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static const char *phymode_to_string(unsigned int phymode)
-{
- switch (phymode) {
- case B43_PHYMODE_A:
- return "A";
- case B43_PHYMODE_B:
- return "B";
- case B43_PHYMODE_G:
- return "G";
- default:
- B43_WARN_ON(1);
- }
- return "";
-}
-
-static int find_wldev_for_phymode(struct b43_wl *wl,
- unsigned int phymode,
- struct b43_wldev **dev, bool * gmode)
-{
- struct b43_wldev *d;
-
- list_for_each_entry(d, &wl->devlist, list) {
- if (d->phy.possible_phymodes & phymode) {
- /* Ok, this device supports the PHY-mode.
- * Now figure out how the gmode bit has to be
- * set to support it. */
- if (phymode == B43_PHYMODE_A)
- *gmode = 0;
- else
- *gmode = 1;
- *dev = d;
-
- return 0;
- }
- }
-
- return -ESRCH;
-}
-
-static void b43_put_phy_into_reset(struct b43_wldev *dev)
-{
- struct ssb_device *sdev = dev->dev;
- u32 tmslow;
-
- tmslow = ssb_read32(sdev, SSB_TMSLOW);
- tmslow &= ~B43_TMSLOW_GMODE;
- tmslow |= B43_TMSLOW_PHYRESET;
- tmslow |= SSB_TMSLOW_FGC;
- ssb_write32(sdev, SSB_TMSLOW, tmslow);
- msleep(1);
-
- tmslow = ssb_read32(sdev, SSB_TMSLOW);
- tmslow &= ~SSB_TMSLOW_FGC;
- tmslow |= B43_TMSLOW_PHYRESET;
- ssb_write32(sdev, SSB_TMSLOW, tmslow);
- msleep(1);
-}
-
-/* Expects wl->mutex locked */
-static int b43_switch_phymode(struct b43_wl *wl, unsigned int new_mode)
-{
- struct b43_wldev *up_dev;
- struct b43_wldev *down_dev;
- int err;
- bool gmode = 0;
- int prev_status;
-
- err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
- if (err) {
- b43err(wl, "Could not find a device for %s-PHY mode\n",
- phymode_to_string(new_mode));
- return err;
- }
- if ((up_dev == wl->current_dev) &&
- (!!wl->current_dev->phy.gmode == !!gmode)) {
- /* This device is already running. */
- return 0;
- }
- b43dbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
- phymode_to_string(new_mode));
- down_dev = wl->current_dev;
-
- prev_status = b43_status(down_dev);
- /* Shutdown the currently running core. */
- if (prev_status >= B43_STAT_STARTED)
- b43_wireless_core_stop(down_dev);
- if (prev_status >= B43_STAT_INITIALIZED)
- b43_wireless_core_exit(down_dev);
-
- if (down_dev != up_dev) {
- /* We switch to a different core, so we put PHY into
- * RESET on the old core. */
- b43_put_phy_into_reset(down_dev);
- }
-
- /* Now start the new core. */
- up_dev->phy.gmode = gmode;
- if (prev_status >= B43_STAT_INITIALIZED) {
- err = b43_wireless_core_init(up_dev);
- if (err) {
- b43err(wl, "Fatal: Could not initialize device for "
- "newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
- goto init_failure;
- }
- }
- if (prev_status >= B43_STAT_STARTED) {
- err = b43_wireless_core_start(up_dev);
- if (err) {
- b43err(wl, "Fatal: Coult not start device for "
- "newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
- b43_wireless_core_exit(up_dev);
- goto init_failure;
- }
- }
- B43_WARN_ON(b43_status(up_dev) != prev_status);
-
- wl->current_dev = up_dev;
-
- return 0;
- init_failure:
- /* Whoops, failed to init the new core. No core is operating now. */
- wl->current_dev = NULL;
- return err;
-}
-
-/* Check if the use of the antenna that ieee80211 told us to
- * use is possible. This will fall back to DEFAULT.
- * "antenna_nr" is the antenna identifier we got from ieee80211. */
-u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
- u8 antenna_nr)
-{
- u8 antenna_mask;
-
- if (antenna_nr == 0) {
- /* Zero means "use default antenna". That's always OK. */
- return 0;
- }
-
- /* Get the mask of available antennas. */
- if (dev->phy.gmode)
- antenna_mask = dev->dev->bus->sprom.ant_available_bg;
- else
- antenna_mask = dev->dev->bus->sprom.ant_available_a;
-
- if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
- /* This antenna is not available. Fall back to default. */
- return 0;
- }
-
- return antenna_nr;
-}
-
-static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
-{
- antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
- switch (antenna) {
- case 0: /* default/diversity */
- return B43_ANTENNA_DEFAULT;
- case 1: /* Antenna 0 */
- return B43_ANTENNA0;
- case 2: /* Antenna 1 */
- return B43_ANTENNA1;
- case 3: /* Antenna 2 */
- return B43_ANTENNA2;
- case 4: /* Antenna 3 */
- return B43_ANTENNA3;
- default:
- return B43_ANTENNA_DEFAULT;
- }
-}
-
-static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev;
- struct b43_phy *phy;
- unsigned long flags;
- unsigned int new_phymode = 0xFFFF;
- int antenna;
- int err = 0;
- u32 savedirqs;
-
- mutex_lock(&wl->mutex);
-
- /* Switch the PHY mode (if necessary). */
- switch (conf->channel->band) {
- case IEEE80211_BAND_5GHZ:
- new_phymode = B43_PHYMODE_A;
- break;
- case IEEE80211_BAND_2GHZ:
- new_phymode = B43_PHYMODE_G;
- break;
- default:
- B43_WARN_ON(1);
- }
- err = b43_switch_phymode(wl, new_phymode);
- if (err)
- goto out_unlock_mutex;
- dev = wl->current_dev;
- phy = &dev->phy;
-
- /* Disable IRQs while reconfiguring the device.
- * This makes it possible to drop the spinlock throughout
- * the reconfiguration process. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- if (b43_status(dev) < B43_STAT_STARTED) {
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- goto out_unlock_mutex;
- }
- savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- b43_synchronize_irq(dev);
-
- /* Switch to the requested channel.
- * The firmware takes care of races with the TX handler. */
- if (conf->channel->hw_value != phy->channel)
- b43_radio_selectchannel(dev, conf->channel->hw_value, 0);
-
- /* Enable/Disable ShortSlot timing. */
- if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) !=
- dev->short_slot) {
- B43_WARN_ON(phy->type != B43_PHYTYPE_G);
- if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)
- b43_short_slot_timing_enable(dev);
- else
- b43_short_slot_timing_disable(dev);
- }
-
- dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
-
- /* Adjust the desired TX power level. */
- if (conf->power_level != 0) {
- if (conf->power_level != phy->power_level) {
- phy->power_level = conf->power_level;
- b43_phy_xmitpower(dev);
- }
- }
-
- /* Antennas for RX and management frame TX. */
- antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx);
- b43_mgmtframe_txantenna(dev, antenna);
- antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx);
- b43_set_rx_antenna(dev, antenna);
-
- /* Update templates for AP mode. */
- if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
- b43_set_beacon_int(dev, conf->beacon_int);
-
- if (!!conf->radio_enabled != phy->radio_on) {
- if (conf->radio_enabled) {
- b43_radio_turn_on(dev);
- b43info(dev->wl, "Radio turned on by software\n");
- if (!dev->radio_hw_enable) {
- b43info(dev->wl, "The hardware RF-kill button "
- "still turns the radio physically off. "
- "Press the button to turn it on.\n");
- }
- } else {
- b43_radio_turn_off(dev, 0);
- b43info(dev->wl, "Radio turned off by software\n");
- }
- }
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43_interrupt_enable(dev, savedirqs);
- mmiowb();
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- out_unlock_mutex:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- const u8 *local_addr, const u8 *addr,
- struct ieee80211_key_conf *key)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev;
- unsigned long flags;
- u8 algorithm;
- u8 index;
- int err;
- DECLARE_MAC_BUF(mac);
-
- if (modparam_nohwcrypt)
- return -ENOSPC; /* User disabled HW-crypto */
-
- mutex_lock(&wl->mutex);
- spin_lock_irqsave(&wl->irq_lock, flags);
-
- dev = wl->current_dev;
- err = -ENODEV;
- if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
- goto out_unlock;
-
- err = -EINVAL;
- switch (key->alg) {
- case ALG_WEP:
- if (key->keylen == 5)
- algorithm = B43_SEC_ALGO_WEP40;
- else
- algorithm = B43_SEC_ALGO_WEP104;
- break;
- case ALG_TKIP:
- algorithm = B43_SEC_ALGO_TKIP;
- break;
- case ALG_CCMP:
- algorithm = B43_SEC_ALGO_AES;
- break;
- default:
- B43_WARN_ON(1);
- goto out_unlock;
- }
- index = (u8) (key->keyidx);
- if (index > 3)
- goto out_unlock;
-
- switch (cmd) {
- case SET_KEY:
- if (algorithm == B43_SEC_ALGO_TKIP) {
- /* FIXME: No TKIP hardware encryption for now. */
- err = -EOPNOTSUPP;
- goto out_unlock;
- }
-
- if (is_broadcast_ether_addr(addr)) {
- /* addr is FF:FF:FF:FF:FF:FF for default keys */
- err = b43_key_write(dev, index, algorithm,
- key->key, key->keylen, NULL, key);
- } else {
- /*
- * either pairwise key or address is 00:00:00:00:00:00
- * for transmit-only keys
- */
- err = b43_key_write(dev, -1, algorithm,
- key->key, key->keylen, addr, key);
- }
- if (err)
- goto out_unlock;
-
- if (algorithm == B43_SEC_ALGO_WEP40 ||
- algorithm == B43_SEC_ALGO_WEP104) {
- b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
- } else {
- b43_hf_write(dev,
- b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
- }
- key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
- break;
- case DISABLE_KEY: {
- err = b43_key_clear(dev, key->hw_key_idx);
- if (err)
- goto out_unlock;
- break;
- }
- default:
- B43_WARN_ON(1);
- }
-out_unlock:
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- mutex_unlock(&wl->mutex);
- if (!err) {
- b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
- "mac: %s\n",
- cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
- print_mac(mac, addr));
- }
- return err;
-}
-
-static void b43_op_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed, unsigned int *fflags,
- int mc_count, struct dev_addr_list *mc_list)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- if (!dev) {
- *fflags = 0;
- return;
- }
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- *fflags &= FIF_PROMISC_IN_BSS |
- FIF_ALLMULTI |
- FIF_FCSFAIL |
- FIF_PLCPFAIL |
- FIF_CONTROL |
- FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC;
-
- changed &= FIF_PROMISC_IN_BSS |
- FIF_ALLMULTI |
- FIF_FCSFAIL |
- FIF_PLCPFAIL |
- FIF_CONTROL |
- FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC;
-
- wl->filter_flags = *fflags;
-
- if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
- b43_adjust_opmode(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-}
-
-static int b43_op_config_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_if_conf *conf)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- if (!dev)
- return -ENODEV;
- mutex_lock(&wl->mutex);
- spin_lock_irqsave(&wl->irq_lock, flags);
- B43_WARN_ON(wl->vif != vif);
- if (conf->bssid)
- memcpy(wl->bssid, conf->bssid, ETH_ALEN);
- else
- memset(wl->bssid, 0, ETH_ALEN);
- if (b43_status(dev) >= B43_STAT_INITIALIZED) {
- if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) {
- B43_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP);
- b43_set_ssid(dev, conf->ssid, conf->ssid_len);
- if (conf->beacon)
- b43_update_templates(wl, conf->beacon);
- }
- b43_write_mac_bssid_templates(dev);
- }
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- mutex_unlock(&wl->mutex);
-
- return 0;
-}
-
-/* Locking: wl->mutex */
-static void b43_wireless_core_stop(struct b43_wldev *dev)
-{
- struct b43_wl *wl = dev->wl;
- unsigned long flags;
-
- if (b43_status(dev) < B43_STAT_STARTED)
- return;
-
- /* Disable and sync interrupts. We must do this before than
- * setting the status to INITIALIZED, as the interrupt handler
- * won't care about IRQs then. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
- b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- b43_synchronize_irq(dev);
-
- b43_set_status(dev, B43_STAT_INITIALIZED);
-
- mutex_unlock(&wl->mutex);
- /* Must unlock as it would otherwise deadlock. No races here.
- * Cancel the possibly running self-rearming periodic work. */
- cancel_delayed_work_sync(&dev->periodic_work);
- mutex_lock(&wl->mutex);
-
- ieee80211_stop_queues(wl->hw); //FIXME this could cause a deadlock, as mac80211 seems buggy.
-
- b43_mac_suspend(dev);
- free_irq(dev->dev->irq, dev);
- b43dbg(wl, "Wireless interface stopped\n");
-}
-
-/* Locking: wl->mutex */
-static int b43_wireless_core_start(struct b43_wldev *dev)
-{
- int err;
-
- B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
-
- drain_txstatus_queue(dev);
- err = request_irq(dev->dev->irq, b43_interrupt_handler,
- IRQF_SHARED, KBUILD_MODNAME, dev);
- if (err) {
- b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
- goto out;
- }
-
- /* We are ready to run. */
- b43_set_status(dev, B43_STAT_STARTED);
-
- /* Start data flow (TX/RX). */
- b43_mac_enable(dev);
- b43_interrupt_enable(dev, dev->irq_savedstate);
- ieee80211_start_queues(dev->wl->hw);
-
- /* Start maintainance work */
- b43_periodic_tasks_setup(dev);
-
- b43dbg(dev->wl, "Wireless interface started\n");
- out:
- return err;
-}
-
-/* Get PHY and RADIO versioning numbers */
-static int b43_phy_versioning(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- u32 tmp;
- u8 analog_type;
- u8 phy_type;
- u8 phy_rev;
- u16 radio_manuf;
- u16 radio_ver;
- u16 radio_rev;
- int unsupported = 0;
-
- /* Get PHY versioning */
- tmp = b43_read16(dev, B43_MMIO_PHY_VER);
- analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
- phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
- phy_rev = (tmp & B43_PHYVER_VERSION);
- switch (phy_type) {
- case B43_PHYTYPE_A:
- if (phy_rev >= 4)
- unsupported = 1;
- break;
- case B43_PHYTYPE_B:
- if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
- && phy_rev != 7)
- unsupported = 1;
- break;
- case B43_PHYTYPE_G:
- if (phy_rev > 9)
- unsupported = 1;
- break;
-#ifdef CONFIG_B43_NPHY
- case B43_PHYTYPE_N:
- if (phy_rev > 1)
- unsupported = 1;
- break;
-#endif
- default:
- unsupported = 1;
- };
- if (unsupported) {
- b43err(dev->wl, "FOUND UNSUPPORTED PHY "
- "(Analog %u, Type %u, Revision %u)\n",
- analog_type, phy_type, phy_rev);
- return -EOPNOTSUPP;
- }
- b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
- analog_type, phy_type, phy_rev);
-
- /* Get RADIO versioning */
- if (dev->dev->bus->chip_id == 0x4317) {
- if (dev->dev->bus->chip_rev == 0)
- tmp = 0x3205017F;
- else if (dev->dev->bus->chip_rev == 1)
- tmp = 0x4205017F;
- else
- tmp = 0x5205017F;
- } else {
- b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
- tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
- b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
- tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
- }
- radio_manuf = (tmp & 0x00000FFF);
- radio_ver = (tmp & 0x0FFFF000) >> 12;
- radio_rev = (tmp & 0xF0000000) >> 28;
- if (radio_manuf != 0x17F /* Broadcom */)
- unsupported = 1;
- switch (phy_type) {
- case B43_PHYTYPE_A:
- if (radio_ver != 0x2060)
- unsupported = 1;
- if (radio_rev != 1)
- unsupported = 1;
- if (radio_manuf != 0x17F)
- unsupported = 1;
- break;
- case B43_PHYTYPE_B:
- if ((radio_ver & 0xFFF0) != 0x2050)
- unsupported = 1;
- break;
- case B43_PHYTYPE_G:
- if (radio_ver != 0x2050)
- unsupported = 1;
- break;
- case B43_PHYTYPE_N:
- if (radio_ver != 0x2055)
- unsupported = 1;
- break;
- default:
- B43_WARN_ON(1);
- }
- if (unsupported) {
- b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
- "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
- radio_manuf, radio_ver, radio_rev);
- return -EOPNOTSUPP;
- }
- b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
- radio_manuf, radio_ver, radio_rev);
-
- phy->radio_manuf = radio_manuf;
- phy->radio_ver = radio_ver;
- phy->radio_rev = radio_rev;
-
- phy->analog = analog_type;
- phy->type = phy_type;
- phy->rev = phy_rev;
-
- return 0;
-}
-
-static void setup_struct_phy_for_init(struct b43_wldev *dev,
- struct b43_phy *phy)
-{
- struct b43_txpower_lo_control *lo;
- int i;
-
- memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
- memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
-
- phy->aci_enable = 0;
- phy->aci_wlan_automatic = 0;
- phy->aci_hw_rssi = 0;
-
- phy->radio_off_context.valid = 0;
-
- lo = phy->lo_control;
- if (lo) {
- memset(lo, 0, sizeof(*(phy->lo_control)));
- lo->rebuild = 1;
- lo->tx_bias = 0xFF;
- }
- phy->max_lb_gain = 0;
- phy->trsw_rx_gain = 0;
- phy->txpwr_offset = 0;
-
- /* NRSSI */
- phy->nrssislope = 0;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
- phy->nrssi[i] = -1000;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
- phy->nrssi_lt[i] = i;
-
- phy->lofcal = 0xFFFF;
- phy->initval = 0xFFFF;
-
- phy->interfmode = B43_INTERFMODE_NONE;
- phy->channel = 0xFF;
-
- phy->hardware_power_control = !!modparam_hwpctl;
-
- /* PHY TX errors counter. */
- atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
-
- /* OFDM-table address caching. */
- phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
-}
-
-static void setup_struct_wldev_for_init(struct b43_wldev *dev)
-{
- dev->dfq_valid = 0;
-
- /* Assume the radio is enabled. If it's not enabled, the state will
- * immediately get fixed on the first periodic work run. */
- dev->radio_hw_enable = 1;
-
- /* Stats */
- memset(&dev->stats, 0, sizeof(dev->stats));
-
- setup_struct_phy_for_init(dev, &dev->phy);
-
- /* IRQ related flags */
- dev->irq_reason = 0;
- memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
- dev->irq_savedstate = B43_IRQ_MASKTEMPLATE;
-
- dev->mac_suspended = 1;
-
- /* Noise calculation context */
- memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
-}
-
-static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
-{
- struct ssb_sprom *sprom = &dev->dev->bus->sprom;
- u32 hf;
-
- if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
- return;
- if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
- return;
-
- hf = b43_hf_read(dev);
- if (sprom->boardflags_lo & B43_BFL_BTCMOD)
- hf |= B43_HF_BTCOEXALT;
- else
- hf |= B43_HF_BTCOEX;
- b43_hf_write(dev, hf);
- //TODO
-}
-
-static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
-{ //TODO
-}
-
-static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
-{
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- struct ssb_bus *bus = dev->dev->bus;
- u32 tmp;
-
- if (bus->pcicore.dev &&
- bus->pcicore.dev->id.coreid == SSB_DEV_PCI &&
- bus->pcicore.dev->id.revision <= 5) {
- /* IMCFGLO timeouts workaround. */
- tmp = ssb_read32(dev->dev, SSB_IMCFGLO);
- tmp &= ~SSB_IMCFGLO_REQTO;
- tmp &= ~SSB_IMCFGLO_SERTO;
- switch (bus->bustype) {
- case SSB_BUSTYPE_PCI:
- case SSB_BUSTYPE_PCMCIA:
- tmp |= 0x32;
- break;
- case SSB_BUSTYPE_SSB:
- tmp |= 0x53;
- break;
- }
- ssb_write32(dev->dev, SSB_IMCFGLO, tmp);
- }
-#endif /* CONFIG_SSB_DRIVER_PCICORE */
-}
-
-/* Write the short and long frame retry limit values. */
-static void b43_set_retry_limits(struct b43_wldev *dev,
- unsigned int short_retry,
- unsigned int long_retry)
-{
- /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
- * the chip-internal counter. */
- short_retry = min(short_retry, (unsigned int)0xF);
- long_retry = min(long_retry, (unsigned int)0xF);
-
- b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
- short_retry);
- b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
- long_retry);
-}
-
-/* Shutdown a wireless core */
-/* Locking: wl->mutex */
-static void b43_wireless_core_exit(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- u32 macctl;
-
- B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED);
- if (b43_status(dev) != B43_STAT_INITIALIZED)
- return;
- b43_set_status(dev, B43_STAT_UNINIT);
-
- /* Stop the microcode PSM. */
- macctl = b43_read32(dev, B43_MMIO_MACCTL);
- macctl &= ~B43_MACCTL_PSM_RUN;
- macctl |= B43_MACCTL_PSM_JMP0;
- b43_write32(dev, B43_MMIO_MACCTL, macctl);
-
- b43_leds_exit(dev);
- b43_rng_exit(dev->wl);
- b43_dma_free(dev);
- b43_chip_exit(dev);
- b43_radio_turn_off(dev, 1);
- b43_switch_analog(dev, 0);
- if (phy->dyn_tssi_tbl)
- kfree(phy->tssi2dbm);
- kfree(phy->lo_control);
- phy->lo_control = NULL;
- if (dev->wl->current_beacon) {
- dev_kfree_skb_any(dev->wl->current_beacon);
- dev->wl->current_beacon = NULL;
- }
-
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(dev->dev->bus);
-}
-
-/* Initialize a wireless core */
-static int b43_wireless_core_init(struct b43_wldev *dev)
-{
- struct b43_wl *wl = dev->wl;
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_sprom *sprom = &bus->sprom;
- struct b43_phy *phy = &dev->phy;
- int err;
- u32 hf, tmp;
-
- B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
-
- err = ssb_bus_powerup(bus, 0);
- if (err)
- goto out;
- if (!ssb_device_is_enabled(dev->dev)) {
- tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
- b43_wireless_core_reset(dev, tmp);
- }
-
- if ((phy->type == B43_PHYTYPE_B) || (phy->type == B43_PHYTYPE_G)) {
- phy->lo_control =
- kzalloc(sizeof(*(phy->lo_control)), GFP_KERNEL);
- if (!phy->lo_control) {
- err = -ENOMEM;
- goto err_busdown;
- }
- }
- setup_struct_wldev_for_init(dev);
-
- err = b43_phy_init_tssi2dbm_table(dev);
- if (err)
- goto err_kfree_lo_control;
-
- /* Enable IRQ routing to this device. */
- ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
-
- b43_imcfglo_timeouts_workaround(dev);
- b43_bluetooth_coext_disable(dev);
- b43_phy_early_init(dev);
- err = b43_chip_init(dev);
- if (err)
- goto err_kfree_tssitbl;
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
- hf = b43_hf_read(dev);
- if (phy->type == B43_PHYTYPE_G) {
- hf |= B43_HF_SYMW;
- if (phy->rev == 1)
- hf |= B43_HF_GDCW;
- if (sprom->boardflags_lo & B43_BFL_PACTRL)
- hf |= B43_HF_OFDMPABOOST;
- } else if (phy->type == B43_PHYTYPE_B) {
- hf |= B43_HF_SYMW;
- if (phy->rev >= 2 && phy->radio_ver == 0x2050)
- hf &= ~B43_HF_GDCW;
- }
- b43_hf_write(dev, hf);
-
- b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
- B43_DEFAULT_LONG_RETRY_LIMIT);
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
-
- /* Disable sending probe responses from firmware.
- * Setting the MaxTime to one usec will always trigger
- * a timeout, so we never send any probe resp.
- * A timeout of zero is infinite. */
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
-
- b43_rate_memory_init(dev);
-
- /* Minimum Contention Window */
- if (phy->type == B43_PHYTYPE_B) {
- b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
- } else {
- b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
- }
- /* Maximum Contention Window */
- b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
-
- err = b43_dma_init(dev);
- if (err)
- goto err_chip_exit;
- b43_qos_init(dev);
-
-//FIXME
-#if 1
- b43_write16(dev, 0x0612, 0x0050);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0416, 0x0050);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0414, 0x01F4);
-#endif
-
- b43_bluetooth_coext_enable(dev);
-
- ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
- b43_upload_card_macaddress(dev);
- b43_security_init(dev);
- b43_rng_init(wl);
-
- b43_set_status(dev, B43_STAT_INITIALIZED);
-
- b43_leds_init(dev);
-out:
- return err;
-
- err_chip_exit:
- b43_chip_exit(dev);
- err_kfree_tssitbl:
- if (phy->dyn_tssi_tbl)
- kfree(phy->tssi2dbm);
- err_kfree_lo_control:
- kfree(phy->lo_control);
- phy->lo_control = NULL;
- err_busdown:
- ssb_bus_may_powerdown(bus);
- B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
- return err;
-}
-
-static int b43_op_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev;
- unsigned long flags;
- int err = -EOPNOTSUPP;
-
- /* TODO: allow WDS/AP devices to coexist */
-
- if (conf->type != IEEE80211_IF_TYPE_AP &&
- conf->type != IEEE80211_IF_TYPE_STA &&
- conf->type != IEEE80211_IF_TYPE_WDS &&
- conf->type != IEEE80211_IF_TYPE_IBSS)
- return -EOPNOTSUPP;
-
- mutex_lock(&wl->mutex);
- if (wl->operating)
- goto out_mutex_unlock;
-
- b43dbg(wl, "Adding Interface type %d\n", conf->type);
-
- dev = wl->current_dev;
- wl->operating = 1;
- wl->vif = conf->vif;
- wl->if_type = conf->type;
- memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43_adjust_opmode(dev);
- b43_upload_card_macaddress(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- err = 0;
- out_mutex_unlock:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43_op_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- b43dbg(wl, "Removing Interface type %d\n", conf->type);
-
- mutex_lock(&wl->mutex);
-
- B43_WARN_ON(!wl->operating);
- B43_WARN_ON(wl->vif != conf->vif);
- wl->vif = NULL;
-
- wl->operating = 0;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43_adjust_opmode(dev);
- memset(wl->mac_addr, 0, ETH_ALEN);
- b43_upload_card_macaddress(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- mutex_unlock(&wl->mutex);
-}
-
-static int b43_op_start(struct ieee80211_hw *hw)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
- int did_init = 0;
- int err = 0;
- bool do_rfkill_exit = 0;
-
- /* Kill all old instance specific information to make sure
- * the card won't use it in the short timeframe between start
- * and mac80211 reconfiguring it. */
- memset(wl->bssid, 0, ETH_ALEN);
- memset(wl->mac_addr, 0, ETH_ALEN);
- wl->filter_flags = 0;
- wl->radiotap_enabled = 0;
-
- /* First register RFkill.
- * LEDs that are registered later depend on it. */
- b43_rfkill_init(dev);
-
- mutex_lock(&wl->mutex);
-
- if (b43_status(dev) < B43_STAT_INITIALIZED) {
- err = b43_wireless_core_init(dev);
- if (err) {
- do_rfkill_exit = 1;
- goto out_mutex_unlock;
- }
- did_init = 1;
- }
-
- if (b43_status(dev) < B43_STAT_STARTED) {
- err = b43_wireless_core_start(dev);
- if (err) {
- if (did_init)
- b43_wireless_core_exit(dev);
- do_rfkill_exit = 1;
- goto out_mutex_unlock;
- }
- }
-
- out_mutex_unlock:
- mutex_unlock(&wl->mutex);
-
- if (do_rfkill_exit)
- b43_rfkill_exit(dev);
-
- return err;
-}
-
-static void b43_op_stop(struct ieee80211_hw *hw)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev = wl->current_dev;
-
- b43_rfkill_exit(dev);
-
- mutex_lock(&wl->mutex);
- if (b43_status(dev) >= B43_STAT_STARTED)
- b43_wireless_core_stop(dev);
- b43_wireless_core_exit(dev);
- mutex_unlock(&wl->mutex);
-}
-
-static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
- u32 short_retry_limit, u32 long_retry_limit)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct b43_wldev *dev;
- int err = 0;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
- err = -ENODEV;
- goto out_unlock;
- }
- b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
-out_unlock:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- struct sk_buff *beacon;
- unsigned long flags;
-
- /* We could modify the existing beacon and set the aid bit in
- * the TIM field, but that would probably require resizing and
- * moving of data within the beacon template.
- * Simply request a new beacon and let mac80211 do the hard work. */
- beacon = ieee80211_beacon_get(hw, wl->vif, NULL);
- if (unlikely(!beacon))
- return -ENOMEM;
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43_update_templates(wl, beacon);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw,
- struct sk_buff *beacon,
- struct ieee80211_tx_control *ctl)
-{
- struct b43_wl *wl = hw_to_b43_wl(hw);
- unsigned long flags;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43_update_templates(wl, beacon);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static const struct ieee80211_ops b43_hw_ops = {
- .tx = b43_op_tx,
- .conf_tx = b43_op_conf_tx,
- .add_interface = b43_op_add_interface,
- .remove_interface = b43_op_remove_interface,
- .config = b43_op_config,
- .config_interface = b43_op_config_interface,
- .configure_filter = b43_op_configure_filter,
- .set_key = b43_op_set_key,
- .get_stats = b43_op_get_stats,
- .get_tx_stats = b43_op_get_tx_stats,
- .start = b43_op_start,
- .stop = b43_op_stop,
- .set_retry_limit = b43_op_set_retry_limit,
- .set_tim = b43_op_beacon_set_tim,
- .beacon_update = b43_op_ibss_beacon_update,
-};
-
-/* Hard-reset the chip. Do not call this directly.
- * Use b43_controller_restart()
- */
-static void b43_chip_reset(struct work_struct *work)
-{
- struct b43_wldev *dev =
- container_of(work, struct b43_wldev, restart_work);
- struct b43_wl *wl = dev->wl;
- int err = 0;
- int prev_status;
-
- mutex_lock(&wl->mutex);
-
- prev_status = b43_status(dev);
- /* Bring the device down... */
- if (prev_status >= B43_STAT_STARTED)
- b43_wireless_core_stop(dev);
- if (prev_status >= B43_STAT_INITIALIZED)
- b43_wireless_core_exit(dev);
-
- /* ...and up again. */
- if (prev_status >= B43_STAT_INITIALIZED) {
- err = b43_wireless_core_init(dev);
- if (err)
- goto out;
- }
- if (prev_status >= B43_STAT_STARTED) {
- err = b43_wireless_core_start(dev);
- if (err) {
- b43_wireless_core_exit(dev);
- goto out;
- }
- }
- out:
- mutex_unlock(&wl->mutex);
- if (err)
- b43err(wl, "Controller restart FAILED\n");
- else
- b43info(wl, "Controller restarted\n");
-}
-
-static int b43_setup_modes(struct b43_wldev *dev,
- bool have_2ghz_phy, bool have_5ghz_phy)
-{
- struct ieee80211_hw *hw = dev->wl->hw;
- struct b43_phy *phy = &dev->phy;
-
- /* XXX: This function will go away soon, when mac80211
- * band stuff is rewritten. So this is just a hack.
- * For now we always claim GPHY mode, as there is no
- * support for NPHY and APHY in the device, yet.
- * This assumption is OK, as any B, N or A PHY will already
- * have died a horrible sanity check death earlier. */
-
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
- phy->possible_phymodes |= B43_PHYMODE_G;
-
- return 0;
-}
-
-static void b43_wireless_core_detach(struct b43_wldev *dev)
-{
- /* We release firmware that late to not be required to re-request
- * is all the time when we reinit the core. */
- b43_release_firmware(dev);
-}
-
-static int b43_wireless_core_attach(struct b43_wldev *dev)
-{
- struct b43_wl *wl = dev->wl;
- struct ssb_bus *bus = dev->dev->bus;
- struct pci_dev *pdev = bus->host_pci;
- int err;
- bool have_2ghz_phy = 0, have_5ghz_phy = 0;
- u32 tmp;
-
- /* Do NOT do any device initialization here.
- * Do it in wireless_core_init() instead.
- * This function is for gathering basic information about the HW, only.
- * Also some structs may be set up here. But most likely you want to have
- * that in core_init(), too.
- */
-
- err = ssb_bus_powerup(bus, 0);
- if (err) {
- b43err(wl, "Bus powerup failed\n");
- goto out;
- }
- /* Get the PHY type. */
- if (dev->dev->id.revision >= 5) {
- u32 tmshigh;
-
- tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
- have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
- have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
- } else
- B43_WARN_ON(1);
-
- dev->phy.gmode = have_2ghz_phy;
- tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
- b43_wireless_core_reset(dev, tmp);
-
- err = b43_phy_versioning(dev);
- if (err)
- goto err_powerdown;
- /* Check if this device supports multiband. */
- if (!pdev ||
- (pdev->device != 0x4312 &&
- pdev->device != 0x4319 && pdev->device != 0x4324)) {
- /* No multiband support. */
- have_2ghz_phy = 0;
- have_5ghz_phy = 0;
- switch (dev->phy.type) {
- case B43_PHYTYPE_A:
- have_5ghz_phy = 1;
- break;
- case B43_PHYTYPE_G:
- case B43_PHYTYPE_N:
- have_2ghz_phy = 1;
- break;
- default:
- B43_WARN_ON(1);
- }
- }
- if (dev->phy.type == B43_PHYTYPE_A) {
- /* FIXME */
- b43err(wl, "IEEE 802.11a devices are unsupported\n");
- err = -EOPNOTSUPP;
- goto err_powerdown;
- }
- dev->phy.gmode = have_2ghz_phy;
- tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
- b43_wireless_core_reset(dev, tmp);
-
- err = b43_validate_chipaccess(dev);
- if (err)
- goto err_powerdown;
- err = b43_setup_modes(dev, have_2ghz_phy, have_5ghz_phy);
- if (err)
- goto err_powerdown;
-
- /* Now set some default "current_dev" */
- if (!wl->current_dev)
- wl->current_dev = dev;
- INIT_WORK(&dev->restart_work, b43_chip_reset);
-
- b43_radio_turn_off(dev, 1);
- b43_switch_analog(dev, 0);
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(bus);
-
-out:
- return err;
-
-err_powerdown:
- ssb_bus_may_powerdown(bus);
- return err;
-}
-
-static void b43_one_core_detach(struct ssb_device *dev)
-{
- struct b43_wldev *wldev;
- struct b43_wl *wl;
-
- wldev = ssb_get_drvdata(dev);
- wl = wldev->wl;
- cancel_work_sync(&wldev->restart_work);
- b43_debugfs_remove_device(wldev);
- b43_wireless_core_detach(wldev);
- list_del(&wldev->list);
- wl->nr_devs--;
- ssb_set_drvdata(dev, NULL);
- kfree(wldev);
-}
-
-static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
-{
- struct b43_wldev *wldev;
- struct pci_dev *pdev;
- int err = -ENOMEM;
-
- if (!list_empty(&wl->devlist)) {
- /* We are not the first core on this chip. */
- pdev = dev->bus->host_pci;
- /* Only special chips support more than one wireless
- * core, although some of the other chips have more than
- * one wireless core as well. Check for this and
- * bail out early.
- */
- if (!pdev ||
- ((pdev->device != 0x4321) &&
- (pdev->device != 0x4313) && (pdev->device != 0x431A))) {
- b43dbg(wl, "Ignoring unconnected 802.11 core\n");
- return -ENODEV;
- }
- }
-
- wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
- if (!wldev)
- goto out;
-
- wldev->dev = dev;
- wldev->wl = wl;
- b43_set_status(wldev, B43_STAT_UNINIT);
- wldev->bad_frames_preempt = modparam_bad_frames_preempt;
- tasklet_init(&wldev->isr_tasklet,
- (void (*)(unsigned long))b43_interrupt_tasklet,
- (unsigned long)wldev);
- INIT_LIST_HEAD(&wldev->list);
-
- err = b43_wireless_core_attach(wldev);
- if (err)
- goto err_kfree_wldev;
-
- list_add(&wldev->list, &wl->devlist);
- wl->nr_devs++;
- ssb_set_drvdata(dev, wldev);
- b43_debugfs_add_device(wldev);
-
- out:
- return err;
-
- err_kfree_wldev:
- kfree(wldev);
- return err;
-}
-
-static void b43_sprom_fixup(struct ssb_bus *bus)
-{
- /* boardflags workarounds */
- if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
- bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
- bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
- if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
- bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
- bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
-}
-
-static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl)
-{
- struct ieee80211_hw *hw = wl->hw;
-
- ssb_set_devtypedata(dev, NULL);
- ieee80211_free_hw(hw);
-}
-
-static int b43_wireless_init(struct ssb_device *dev)
-{
- struct ssb_sprom *sprom = &dev->bus->sprom;
- struct ieee80211_hw *hw;
- struct b43_wl *wl;
- int err = -ENOMEM;
-
- b43_sprom_fixup(dev->bus);
-
- hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
- if (!hw) {
- b43err(NULL, "Could not allocate ieee80211 device\n");
- goto out;
- }
-
- /* fill hw info */
- hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
- IEEE80211_HW_RX_INCLUDES_FCS;
- hw->max_signal = 100;
- hw->max_rssi = -110;
- hw->max_noise = -110;
- hw->queues = 1; /* FIXME: hardware has more queues */
- SET_IEEE80211_DEV(hw, dev->dev);
- if (is_valid_ether_addr(sprom->et1mac))
- SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
- else
- SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
-
- /* Get and initialize struct b43_wl */
- wl = hw_to_b43_wl(hw);
- memset(wl, 0, sizeof(*wl));
- wl->hw = hw;
- spin_lock_init(&wl->irq_lock);
- spin_lock_init(&wl->leds_lock);
- spin_lock_init(&wl->shm_lock);
- mutex_init(&wl->mutex);
- INIT_LIST_HEAD(&wl->devlist);
-
- ssb_set_devtypedata(dev, wl);
- b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
- err = 0;
- out:
- return err;
-}
-
-static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id)
-{
- struct b43_wl *wl;
- int err;
- int first = 0;
-
- wl = ssb_get_devtypedata(dev);
- if (!wl) {
- /* Probing the first core. Must setup common struct b43_wl */
- first = 1;
- err = b43_wireless_init(dev);
- if (err)
- goto out;
- wl = ssb_get_devtypedata(dev);
- B43_WARN_ON(!wl);
- }
- err = b43_one_core_attach(dev, wl);
- if (err)
- goto err_wireless_exit;
-
- if (first) {
- err = ieee80211_register_hw(wl->hw);
- if (err)
- goto err_one_core_detach;
- }
-
- out:
- return err;
-
- err_one_core_detach:
- b43_one_core_detach(dev);
- err_wireless_exit:
- if (first)
- b43_wireless_exit(dev, wl);
- return err;
-}
-
-static void b43_remove(struct ssb_device *dev)
-{
- struct b43_wl *wl = ssb_get_devtypedata(dev);
- struct b43_wldev *wldev = ssb_get_drvdata(dev);
-
- B43_WARN_ON(!wl);
- if (wl->current_dev == wldev)
- ieee80211_unregister_hw(wl->hw);
-
- b43_one_core_detach(dev);
-
- if (list_empty(&wl->devlist)) {
- /* Last core on the chip unregistered.
- * We can destroy common struct b43_wl.
- */
- b43_wireless_exit(dev, wl);
- }
-}
-
-/* Perform a hardware reset. This can be called from any context. */
-void b43_controller_restart(struct b43_wldev *dev, const char *reason)
-{
- /* Must avoid requeueing, if we are in shutdown. */
- if (b43_status(dev) < B43_STAT_INITIALIZED)
- return;
- b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
- queue_work(dev->wl->hw->workqueue, &dev->restart_work);
-}
-
-#ifdef CONFIG_PM
-
-static int b43_suspend(struct ssb_device *dev, pm_message_t state)
-{
- struct b43_wldev *wldev = ssb_get_drvdata(dev);
- struct b43_wl *wl = wldev->wl;
-
- b43dbg(wl, "Suspending...\n");
-
- mutex_lock(&wl->mutex);
- wldev->suspend_init_status = b43_status(wldev);
- if (wldev->suspend_init_status >= B43_STAT_STARTED)
- b43_wireless_core_stop(wldev);
- if (wldev->suspend_init_status >= B43_STAT_INITIALIZED)
- b43_wireless_core_exit(wldev);
- mutex_unlock(&wl->mutex);
-
- b43dbg(wl, "Device suspended.\n");
-
- return 0;
-}
-
-static int b43_resume(struct ssb_device *dev)
-{
- struct b43_wldev *wldev = ssb_get_drvdata(dev);
- struct b43_wl *wl = wldev->wl;
- int err = 0;
-
- b43dbg(wl, "Resuming...\n");
-
- mutex_lock(&wl->mutex);
- if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) {
- err = b43_wireless_core_init(wldev);
- if (err) {
- b43err(wl, "Resume failed at core init\n");
- goto out;
- }
- }
- if (wldev->suspend_init_status >= B43_STAT_STARTED) {
- err = b43_wireless_core_start(wldev);
- if (err) {
- b43_wireless_core_exit(wldev);
- b43err(wl, "Resume failed at core start\n");
- goto out;
- }
- }
- mutex_unlock(&wl->mutex);
-
- b43dbg(wl, "Device resumed.\n");
- out:
- return err;
-}
-
-#else /* CONFIG_PM */
-# define b43_suspend NULL
-# define b43_resume NULL
-#endif /* CONFIG_PM */
-
-static struct ssb_driver b43_ssb_driver = {
- .name = KBUILD_MODNAME,
- .id_table = b43_ssb_tbl,
- .probe = b43_probe,
- .remove = b43_remove,
- .suspend = b43_suspend,
- .resume = b43_resume,
-};
-
-static int __init b43_init(void)
-{
- int err;
-
- b43_debugfs_init();
- err = b43_pcmcia_init();
- if (err)
- goto err_dfs_exit;
- err = ssb_driver_register(&b43_ssb_driver);
- if (err)
- goto err_pcmcia_exit;
-
- return err;
-
-err_pcmcia_exit:
- b43_pcmcia_exit();
-err_dfs_exit:
- b43_debugfs_exit();
- return err;
-}
-
-static void __exit b43_exit(void)
-{
- ssb_driver_unregister(&b43_ssb_driver);
- b43_pcmcia_exit();
- b43_debugfs_exit();
-}
-
-module_init(b43_init)
-module_exit(b43_exit)
projects / openwrt.git / blobdiff