--- /dev/null
+/*
+
+ Broadcom B43 wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
+ Copyright (c) 2005 Stefano Brivio <st3@riseup.net>
+ 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 "pio.h"
+#include "sysfs.h"
+#include "xmit.h"
+#include "sysfs.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");
+
+extern char *nvram_get(char *name);
+
+#if defined(CONFIG_B43_DMA) && defined(CONFIG_B43_PIO)
+static int modparam_pio;
+module_param_named(pio, modparam_pio, int, 0444);
+MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
+#elif defined(CONFIG_B43_DMA)
+# define modparam_pio 0
+#elif defined(CONFIG_B43_PIO)
+# define modparam_pio 1
+#endif
+
+static int modparam_bad_frames_preempt;
+module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
+MODULE_PARM_DESC(bad_frames_preempt,
+ "enable(1) / disable(0) Bad Frames Preemption");
+
+static int modparam_short_retry = B43_DEFAULT_SHORT_RETRY_LIMIT;
+module_param_named(short_retry, modparam_short_retry, int, 0444);
+MODULE_PARM_DESC(short_retry, "Short-Retry-Limit (0 - 15)");
+
+static int modparam_long_retry = B43_DEFAULT_LONG_RETRY_LIMIT;
+module_param_named(long_retry, modparam_long_retry, int, 0444);
+MODULE_PARM_DESC(long_retry, "Long-Retry-Limit (0 - 15)");
+
+static 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_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) \
+ { \
+ .rate = B43_RATE_TO_BASE100KBPS(_rateid), \
+ .val = (_rateid), \
+ .val2 = (_rateid), \
+ .flags = (_flags), \
+ }
+static struct ieee80211_rate __b43_ratetable[] = {
+ RATETAB_ENT(B43_CCK_RATE_1MB, IEEE80211_RATE_CCK),
+ RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_CCK_2),
+ RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_CCK_2),
+ RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_CCK_2),
+ RATETAB_ENT(B43_OFDM_RATE_6MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_9MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_12MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_18MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_24MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_36MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_48MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_OFDM_RATE_54MB, IEEE80211_RATE_OFDM),
+};
+
+#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) \
+ { \
+ .chan = (_chanid), \
+ .freq = (_freq), \
+ .val = (_chanid), \
+ .flag = IEEE80211_CHAN_W_SCAN | \
+ IEEE80211_CHAN_W_ACTIVE_SCAN | \
+ IEEE80211_CHAN_W_IBSS, \
+ .power_level = 0xFF, \
+ .antenna_max = 0xFF, \
+ }
+static struct ieee80211_channel b43_bg_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),
+};
+
+#define b43_bg_chantable_size ARRAY_SIZE(b43_bg_chantable)
+static struct ieee80211_channel b43_a_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),
+};
+
+#define b43_a_chantable_size ARRAY_SIZE(b43_a_chantable)
+
+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)
+{
+ u32 ret;
+
+ 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);
+
+ return ret;
+ }
+ offset >>= 2;
+ }
+ b43_shm_control_word(dev, routing, offset);
+ ret = b43_read32(dev, B43_MMIO_SHM_DATA);
+
+ return ret;
+}
+
+u16 b43_shm_read16(struct b43_wldev * dev, u16 routing, u16 offset)
+{
+ u16 ret;
+
+ 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);
+
+ return ret;
+ }
+ offset >>= 2;
+ }
+ b43_shm_control_word(dev, routing, offset);
+ ret = b43_read16(dev, B43_MMIO_SHM_DATA);
+
+ return ret;
+}
+
+void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
+{
+ if (routing == B43_SHM_SHARED) {
+ B43_WARN_ON(offset & 0x0001);
+ if (offset & 0x0003) {
+ /* Unaligned access */
+ b43_shm_control_word(dev, routing, offset >> 2);
+ mmiowb();
+ b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
+ (value >> 16) & 0xffff);
+ mmiowb();
+ b43_shm_control_word(dev, routing, (offset >> 2) + 1);
+ mmiowb();
+ b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff);
+ return;
+ }
+ offset >>= 2;
+ }
+ b43_shm_control_word(dev, routing, offset);
+ mmiowb();
+ b43_write32(dev, B43_MMIO_SHM_DATA, value);
+}
+
+void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
+{
+ if (routing == B43_SHM_SHARED) {
+ B43_WARN_ON(offset & 0x0001);
+ if (offset & 0x0003) {
+ /* Unaligned access */
+ b43_shm_control_word(dev, routing, offset >> 2);
+ mmiowb();
+ b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
+ return;
+ }
+ offset >>= 2;
+ }
+ b43_shm_control_word(dev, routing, offset);
+ mmiowb();
+ b43_write16(dev, B43_MMIO_SHM_DATA, value);
+}
+
+/* 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_STATUS2_BITFIELD,
+ b43_read32(dev, B43_MMIO_STATUS2_BITFIELD)
+ | (1 << 4));
+ 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;
+ *((u32 *) 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);
+ }
+ dev->reg124_set_0x4 = 0;
+ if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
+ dev->reg124_set_0x4 = 1;
+}
+
+static void handle_irq_atim_end(struct b43_wldev *dev)
+{
+ if (!dev->reg124_set_0x4 /*FIXME rename this variable */ )
+ return;
+ b43_write32(dev, B43_MMIO_STATUS2_BITFIELD,
+ b43_read32(dev, B43_MMIO_STATUS2_BITFIELD)
+ | 0x4);
+}
+
+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)
+{
+ int len;
+ const u8 *data;
+
+ B43_WARN_ON(!dev->cached_beacon);
+ len = min((size_t) dev->cached_beacon->len,
+ 0x200 - sizeof(struct b43_plcp_hdr6));
+ data = (const u8 *)(dev->cached_beacon->data);
+ b43_write_template_common(dev, data,
+ len, ram_offset, shm_size_offset, rate);
+}
+
+static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
+ u16 shm_offset, u16 size, u8 rate)
+{
+ struct b43_plcp_hdr4 plcp;
+ u32 tmp;
+ __le16 dur;
+
+ plcp.data = 0;
+ b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
+ dur = ieee80211_generic_frame_duration(dev->wl->hw,
+ dev->wl->if_id, size,
+ B43_RATE_TO_BASE100KBPS(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 u8 *b43_generate_probe_resp(struct b43_wldev *dev,
+ u16 * dest_size, u8 rate)
+{
+ const u8 *src_data;
+ u8 *dest_data;
+ u16 src_size, elem_size, src_pos, dest_pos;
+ __le16 dur;
+ struct ieee80211_hdr *hdr;
+
+ B43_WARN_ON(!dev->cached_beacon);
+ src_size = dev->cached_beacon->len;
+ src_data = (const u8 *)dev->cached_beacon->data;
+
+ if (unlikely(src_size < 0x24)) {
+ b43dbg(dev->wl, "b43_generate_probe_resp: " "invalid beacon\n");
+ return NULL;
+ }
+
+ dest_data = kmalloc(src_size, GFP_ATOMIC);
+ if (unlikely(!dest_data))
+ return NULL;
+
+ /* 0x24 is offset of first variable-len Information-Element
+ * in beacon frame.
+ */
+ memcpy(dest_data, src_data, 0x24);
+ src_pos = dest_pos = 0x24;
+ for (; src_pos < src_size - 2; src_pos += elem_size) {
+ elem_size = src_data[src_pos + 1] + 2;
+ if (src_data[src_pos] != 0x05) { /* TIM */
+ 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->if_id, *dest_size,
+ B43_RATE_TO_BASE100KBPS(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, u8 rate)
+{
+ u8 *probe_resp_data;
+ u16 size;
+
+ B43_WARN_ON(!dev->cached_beacon);
+ size = dev->cached_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_CCK_RATE_1MB);
+ b43_write_probe_resp_plcp(dev, 0x32C, size, B43_CCK_RATE_2MB);
+ b43_write_probe_resp_plcp(dev, 0x33E, size, B43_CCK_RATE_5MB);
+ b43_write_probe_resp_plcp(dev, 0x350, size, B43_CCK_RATE_11MB);
+
+ 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);
+ kfree(probe_resp_data);
+}
+
+static int b43_refresh_cached_beacon(struct b43_wldev *dev,
+ struct sk_buff *beacon)
+{
+ if (dev->cached_beacon)
+ kfree_skb(dev->cached_beacon);
+ dev->cached_beacon = beacon;
+
+ return 0;
+}
+
+static void b43_update_templates(struct b43_wldev *dev)
+{
+ u32 status;
+
+ B43_WARN_ON(!dev->cached_beacon);
+
+ b43_write_beacon_template(dev, 0x68, 0x18, B43_CCK_RATE_1MB);
+ b43_write_beacon_template(dev, 0x468, 0x1A, B43_CCK_RATE_1MB);
+ b43_write_probe_resp_template(dev, 0x268, 0x4A, B43_CCK_RATE_11MB);
+
+ status = b43_read32(dev, B43_MMIO_STATUS2_BITFIELD);
+ status |= 0x03;
+ b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, status);
+}
+
+static void b43_refresh_templates(struct b43_wldev *dev, struct sk_buff *beacon)
+{
+ int err;
+
+ err = b43_refresh_cached_beacon(dev, beacon);
+ if (unlikely(err))
+ return;
+ b43_update_templates(dev);
+}
+
+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)
+{
+ u32 status;
+
+ if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
+ return;
+
+ dev->irq_savedstate &= ~B43_IRQ_BEACON;
+ status = b43_read32(dev, B43_MMIO_STATUS2_BITFIELD);
+
+ if (!dev->cached_beacon || ((status & 0x1) && (status & 0x2))) {
+ /* ACK beacon IRQ. */
+ b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
+ dev->irq_savedstate |= B43_IRQ_BEACON;
+ if (dev->cached_beacon)
+ kfree_skb(dev->cached_beacon);
+ dev->cached_beacon = NULL;
+ return;
+ }
+ if (!(status & 0x1)) {
+ b43_write_beacon_template(dev, 0x68, 0x18, B43_CCK_RATE_1MB);
+ status |= 0x1;
+ b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, status);
+ }
+ if (!(status & 0x2)) {
+ b43_write_beacon_template(dev, 0x468, 0x1A, B43_CCK_RATE_1MB);
+ status |= 0x2;
+ b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, status);
+ }
+}
+
+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");
+
+ 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) {
+ if (b43_using_pio(dev))
+ b43_pio_rx(dev->pio.queue0);
+ else
+ b43_dma_rx(dev->dma.rx_ring0);
+ }
+ B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
+ B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
+ if (dma_reason[3] & B43_DMAIRQ_RX_DONE) {
+ if (b43_using_pio(dev))
+ b43_pio_rx(dev->pio.queue3);
+ else
+ b43_dma_rx(dev->dma.rx_ring3);
+ }
+ 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 pio_irq_workaround(struct b43_wldev *dev, u16 base, int queueidx)
+{
+ u16 rxctl;
+
+ rxctl = b43_read16(dev, base + B43_PIO_RXCTL);
+ if (rxctl & B43_PIO_RXCTL_DATAAVAILABLE)
+ dev->dma_reason[queueidx] |= B43_DMAIRQ_RX_DONE;
+ else
+ dev->dma_reason[queueidx] &= ~B43_DMAIRQ_RX_DONE;
+}
+
+static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason)
+{
+ if (b43_using_pio(dev) &&
+ (dev->dev->id.revision < 3) &&
+ (!(reason & B43_IRQ_PIO_WORKAROUND))) {
+ /* Apply a PIO specific workaround to the dma_reasons */
+ pio_irq_workaround(dev, B43_MMIO_PIO1_BASE, 0);
+ pio_irq_workaround(dev, B43_MMIO_PIO2_BASE, 1);
+ pio_irq_workaround(dev, B43_MMIO_PIO3_BASE, 2);
+ pio_irq_workaround(dev, B43_MMIO_PIO4_BASE, 3);
+ }
+
+ 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 b43_release_firmware(struct b43_wldev *dev)
+{
+ release_firmware(dev->fw.ucode);
+ dev->fw.ucode = NULL;
+ release_firmware(dev->fw.pcm);
+ dev->fw.pcm = NULL;
+ release_firmware(dev->fw.initvals);
+ dev->fw.initvals = NULL;
+ release_firmware(dev->fw.initvals_band);
+ dev->fw.initvals_band = NULL;
+}
+
+static void b43_print_fw_helptext(struct b43_wl *wl)
+{
+ b43err(wl, "You must go to "
+ "http://linuxwireless.org/en/users/Drivers/bcm43xx#devicefirmware "
+ "and download the correct firmware (version 4).\n");
+}
+
+static int do_request_fw(struct b43_wldev *dev,
+ const char *name,
+ const struct firmware **fw)
+{
+ const size_t plen = sizeof(modparam_fwpostfix) + 32;
+ char path[plen];
+ struct b43_fw_header *hdr;
+ u32 size;
+ int err;
+
+ if (!name)
+ return 0;
+
+ snprintf(path, ARRAY_SIZE(path),
+ "b43%s/%s.fw",
+ modparam_fwpostfix, name);
+ err = request_firmware(fw, path, dev->dev->dev);
+ if (err) {
+ b43err(dev->wl, "Firmware file \"%s\" not found "
+ "or load failed.\n", path);
+ return err;
+ }
+ if ((*fw)->size < sizeof(struct b43_fw_header))
+ goto err_format;
+ hdr = (struct b43_fw_header *)((*fw)->data);
+ switch (hdr->type) {
+ case B43_FW_TYPE_UCODE:
+ case B43_FW_TYPE_PCM:
+ size = be32_to_cpu(hdr->size);
+ if (size != (*fw)->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;
+ }
+
+ return err;
+
+err_format:
+ b43err(dev->wl, "Firmware file \"%s\" format error.\n", path);
+ 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;
+
+ tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
+ if (!fw->ucode) {
+ 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;
+ }
+ if (!fw->pcm) {
+ 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;
+ }
+ if (!fw->initvals) {
+ switch (dev->phy.type) {
+ case B43_PHYTYPE_A:
+ if ((rev >= 5) && (rev <= 10)) {
+ if (tmshigh & B43_TMSHIGH_GPHY)
+ 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;
+ default:
+ goto err_no_initvals;
+ }
+ err = do_request_fw(dev, filename, &fw->initvals);
+ if (err)
+ goto err_load;
+ }
+ if (!fw->initvals_band) {
+ switch (dev->phy.type) {
+ case B43_PHYTYPE_A:
+ if ((rev >= 5) && (rev <= 10)) {
+ if (tmshigh & B43_TMSHIGH_GPHY)
+ 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;
+ 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);
+ 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;
+ int err = 0;
+
+ /* Upload Microcode. */
+ data = (__be32 *) (dev->fw.ucode->data + hdr_len);
+ len = (dev->fw.ucode->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) {
+ /* Upload PCM data. */
+ data = (__be32 *) (dev->fw.pcm->data + hdr_len);
+ len = (dev->fw.pcm->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);
+ b43_write32(dev, B43_MMIO_MACCTL,
+ B43_MACCTL_PSM_RUN |
+ B43_MACCTL_IHR_ENABLED | B43_MACCTL_INFRA);
+
+ /* 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 >= 50) {
+ b43err(dev->wl, "Microcode not responding\n");
+ b43_print_fw_helptext(dev->wl);
+ err = -ENODEV;
+ goto out;
+ }
+ udelay(10);
+ }
+ 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);
+ b43_write32(dev, B43_MMIO_MACCTL, 0);
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+ 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;
+
+ out:
+ 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);
+
+ 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);
+ ivals = (const struct b43_iv *)(fw->initvals->data + hdr_len);
+ count = be32_to_cpu(hdr->size);
+ err = b43_write_initvals(dev, ivals, count,
+ fw->initvals->size - hdr_len);
+ if (err)
+ goto out;
+ if (fw->initvals_band) {
+ hdr = (const struct b43_fw_header *)(fw->initvals_band->data);
+ ivals = (const struct b43_iv *)(fw->initvals_band->data + hdr_len);
+ count = be32_to_cpu(hdr->size);
+ err = b43_write_initvals(dev, ivals, count,
+ fw->initvals_band->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.r1.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:
+ 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_TX4_PHY_ANT0;
+ break;
+ case B43_ANTENNA1:
+ ant |= B43_TX4_PHY_ANT1;
+ break;
+ case B43_ANTENNA_AUTO:
+ ant |= B43_TX4_PHY_ANTLAST;
+ 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_TX4_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_TX4_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_TX4_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_leds_exit(dev);
+ 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;
+ u16 value16;
+
+ b43_write32(dev, B43_MMIO_MACCTL,
+ B43_MACCTL_PSM_JMP0 | B43_MACCTL_IHR_ENABLED);
+
+ 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 */
+ b43_leds_init(dev);
+
+ err = b43_upload_initvals(dev);
+ if (err)
+ goto err_leds_exit;
+ 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);
+
+ if (b43_using_pio(dev)) {
+ b43_write32(dev, 0x0210, 0x00000100);
+ b43_write32(dev, 0x0230, 0x00000100);
+ b43_write32(dev, 0x0250, 0x00000100);
+ b43_write32(dev, 0x0270, 0x00000100);
+ b43_shm_write16(dev, B43_SHM_SHARED, 0x0034, 0x0000);
+ }
+
+ /* 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_leds_exit:
+ b43_leds_exit(dev);
+ 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 (!b43_has_hardware_pctl(phy))
+ b43_lo_g_ctl_mark_all_unused(dev);
+ if (dev->dev->bus->sprom.r1.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?)
+}
+
+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(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);
+}
+
+/* Validate access to the chip (SHM) */
+static int b43_validate_chipaccess(struct b43_wldev *dev)
+{
+ u32 value;
+ u32 shm_backup;
+
+ shm_backup = b43_shm_read32(dev, B43_SHM_SHARED, 0);
+ 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, 0x55AAAA55);
+ if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
+ goto error;
+ b43_shm_write32(dev, B43_SHM_SHARED, 0, shm_backup);
+
+ value = b43_read32(dev, B43_MMIO_MACCTL);
+ if ((value | B43_MACCTL_GMODE) !=
+ (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
+ goto error;
+
+ value = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
+ if (value)
+ 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_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;
+ unsigned long flags;
+
+ if (unlikely(!dev))
+ goto out;
+ if (unlikely(b43_status(dev) < B43_STAT_STARTED))
+ goto out;
+ /* DMA-TX is done without a global lock. */
+ if (b43_using_pio(dev)) {
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ err = b43_pio_tx(dev, skb, ctl);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ } else
+ err = b43_dma_tx(dev, skb, ctl);
+ out:
+ if (unlikely(err))
+ return NETDEV_TX_BUSY;
+ return NETDEV_TX_OK;
+}
+
+static int b43_conf_tx(struct ieee80211_hw *hw,
+ int queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ return 0;
+}
+
+static int b43_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)) {
+ if (b43_using_pio(dev))
+ b43_pio_get_tx_stats(dev, stats);
+ else
+ b43_dma_get_tx_stats(dev, stats);
+ err = 0;
+ }
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ out:
+ return err;
+}
+
+static int b43_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;
+}
+
+static int b43_antenna_from_ieee80211(u8 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;
+ default:
+ return B43_ANTENNA_DEFAULT;
+ }
+}
+
+static int b43_dev_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_tx;
+ int antenna_rx;
+ int err = 0;
+ u32 savedirqs;
+
+ antenna_tx = b43_antenna_from_ieee80211(conf->antenna_sel_tx);
+ antenna_rx = b43_antenna_from_ieee80211(conf->antenna_sel_rx);
+
+ mutex_lock(&wl->mutex);
+
+ /* Switch the PHY mode (if necessary). */
+ switch (conf->phymode) {
+ case MODE_IEEE80211A:
+ new_phymode = B43_PHYMODE_A;
+ break;
+ case MODE_IEEE80211B:
+ new_phymode = B43_PHYMODE_B;
+ break;
+ case MODE_IEEE80211G:
+ 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_val != phy->channel)
+ b43_radio_selectchannel(dev, conf->channel_val, 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);
+ }
+
+ /* 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. */
+ b43_mgmtframe_txantenna(dev, antenna_tx);
+ b43_set_rx_antenna(dev, antenna_rx);
+
+ /* 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_dev_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 = wl->current_dev;
+ unsigned long flags;
+ u8 algorithm;
+ u8 index;
+ int err = -EINVAL;
+
+ if (modparam_nohwcrypt)
+ return -ENOSPC; /* User disabled HW-crypto */
+
+ if (!dev)
+ return -ENODEV;
+ 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;
+ }
+
+ index = (u8) (key->keyidx);
+ if (index > 3)
+ goto out;
+
+ mutex_lock(&wl->mutex);
+ spin_lock_irqsave(&wl->irq_lock, flags);
+
+ if (b43_status(dev) < B43_STAT_INITIALIZED) {
+ err = -ENODEV;
+ 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);
+out:
+ if (!err) {
+ b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
+ "mac: " MAC_FMT "\n",
+ cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
+ MAC_ARG(addr));
+ }
+ return err;
+}
+
+static void b43_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_config_interface(struct ieee80211_hw *hw,
+ int if_id, 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->if_id != if_id);
+ 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_refresh_templates(dev, 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;
+ 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.
+
+ /* Disable and sync interrupts. */
+ 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_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 > 8)
+ unsupported = 1;
+ break;
+ 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_HIGH);
+ tmp <<= 16;
+ b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
+ tmp |= b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
+ }
+ radio_manuf = (tmp & 0x00000FFF);
+ radio_ver = (tmp & 0x0FFFF000) >> 12;
+ radio_rev = (tmp & 0xF0000000) >> 28;
+ 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;
+ 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));
+
+ /* Flags */
+ phy->locked = 0;
+
+ 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;
+
+ spin_lock_init(&phy->lock);
+ phy->interfmode = B43_INTERFMODE_NONE;
+ phy->channel = 0xFF;
+
+ phy->hardware_power_control = !!modparam_hwpctl;
+}
+
+static void setup_struct_wldev_for_init(struct b43_wldev *dev)
+{
+ /* Flags */
+ dev->reg124_set_0x4 = 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->r1.boardflags_lo & B43_BFL_BTCOEXIST))
+ return;
+ if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
+ return;
+
+ hf = b43_hf_read(dev);
+ if (sprom->r1.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 */
+}
+
+/* Shutdown a wireless core */
+/* Locking: wl->mutex */
+static void b43_wireless_core_exit(struct b43_wldev *dev)
+{
+ struct b43_phy *phy = &dev->phy;
+
+ B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED);
+ if (b43_status(dev) != B43_STAT_INITIALIZED)
+ return;
+ b43_set_status(dev, B43_STAT_UNINIT);
+
+ mutex_unlock(&dev->wl->mutex);
+ b43_rfkill_exit(dev);
+ mutex_lock(&dev->wl->mutex);
+
+ b43_rng_exit(dev->wl);
+ b43_pio_free(dev);
+ 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;
+ 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->r1.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);
+
+ /* Short/Long Retry Limit.
+ * The retry-limit is a 4-bit counter. Enforce this to avoid overflowing
+ * the chip-internal counter.
+ */
+ tmp = limit_value(modparam_short_retry, 0, 0xF);
+ b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, tmp);
+ tmp = limit_value(modparam_long_retry, 0, 0xF);
+ b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, tmp);
+
+ 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);
+
+ do {
+ if (b43_using_pio(dev)) {
+ err = b43_pio_init(dev);
+ } else {
+ err = b43_dma_init(dev);
+ if (!err)
+ b43_qos_init(dev);
+ }
+ } while (err == -EAGAIN);
+ if (err)
+ goto err_chip_exit;
+
+//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 */
+ memset(wl->bssid, 0, ETH_ALEN);
+ memset(wl->mac_addr, 0, ETH_ALEN);
+ b43_upload_card_macaddress(dev);
+ b43_security_init(dev);
+ b43_rfkill_init(dev);
+ b43_rng_init(wl);
+
+ b43_set_status(dev, B43_STAT_INITIALIZED);
+
+ 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_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->if_id = conf->if_id;
+ 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_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->if_id != conf->if_id);
+
+ 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_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;
+
+ mutex_lock(&wl->mutex);
+
+ if (b43_status(dev) < B43_STAT_INITIALIZED) {
+ err = b43_wireless_core_init(dev);
+ if (err)
+ 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);
+ goto out_mutex_unlock;
+ }
+ }
+
+ out_mutex_unlock:
+ mutex_unlock(&wl->mutex);
+
+ return err;
+}
+
+void b43_stop(struct ieee80211_hw *hw)
+{
+ struct b43_wl *wl = hw_to_b43_wl(hw);
+ struct b43_wldev *dev = wl->current_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 const struct ieee80211_ops b43_hw_ops = {
+ .tx = b43_tx,
+ .conf_tx = b43_conf_tx,
+ .add_interface = b43_add_interface,
+ .remove_interface = b43_remove_interface,
+ .config = b43_dev_config,
+ .config_interface = b43_config_interface,
+ .configure_filter = b43_configure_filter,
+ .set_key = b43_dev_set_key,
+ .get_stats = b43_get_stats,
+ .get_tx_stats = b43_get_tx_stats,
+ .start = b43_start,
+ .stop = b43_stop,
+};
+
+/* 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,
+ int have_aphy, int have_bphy, int have_gphy)
+{
+ struct ieee80211_hw *hw = dev->wl->hw;
+ struct ieee80211_hw_mode *mode;
+ struct b43_phy *phy = &dev->phy;
+ int cnt = 0;
+ int err;
+
+/*FIXME: Don't tell ieee80211 about an A-PHY, because we currently don't support A-PHY. */
+ have_aphy = 0;
+
+ phy->possible_phymodes = 0;
+ for (; 1; cnt++) {
+ if (have_aphy) {
+ B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES);
+ mode = &phy->hwmodes[cnt];
+
+ mode->mode = MODE_IEEE80211A;
+ mode->num_channels = b43_a_chantable_size;
+ mode->channels = b43_a_chantable;
+ mode->num_rates = b43_a_ratetable_size;
+ mode->rates = b43_a_ratetable;
+ err = ieee80211_register_hwmode(hw, mode);
+ if (err)
+ return err;
+
+ phy->possible_phymodes |= B43_PHYMODE_A;
+ have_aphy = 0;
+ continue;
+ }
+ if (have_bphy) {
+ B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES);
+ mode = &phy->hwmodes[cnt];
+
+ mode->mode = MODE_IEEE80211B;
+ mode->num_channels = b43_bg_chantable_size;
+ mode->channels = b43_bg_chantable;
+ mode->num_rates = b43_b_ratetable_size;
+ mode->rates = b43_b_ratetable;
+ err = ieee80211_register_hwmode(hw, mode);
+ if (err)
+ return err;
+
+ phy->possible_phymodes |= B43_PHYMODE_B;
+ have_bphy = 0;
+ continue;
+ }
+ if (have_gphy) {
+ B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES);
+ mode = &phy->hwmodes[cnt];
+
+ mode->mode = MODE_IEEE80211G;
+ mode->num_channels = b43_bg_chantable_size;
+ mode->channels = b43_bg_chantable;
+ mode->num_rates = b43_g_ratetable_size;
+ mode->rates = b43_g_ratetable;
+ err = ieee80211_register_hwmode(hw, mode);
+ if (err)
+ return err;
+
+ phy->possible_phymodes |= B43_PHYMODE_G;
+ have_gphy = 0;
+ continue;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static void b43_wireless_core_detach(struct b43_wldev *dev)
+{
+ b43_rfkill_free(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;
+ int have_aphy = 0, have_bphy = 0, have_gphy = 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_aphy = !!(tmshigh & B43_TMSHIGH_APHY);
+ have_gphy = !!(tmshigh & B43_TMSHIGH_GPHY);
+ if (!have_aphy && !have_gphy)
+ have_bphy = 1;
+ } else if (dev->dev->id.revision == 4) {
+ have_gphy = 1;
+ have_aphy = 1;
+ } else
+ have_bphy = 1;
+
+ dev->phy.gmode = (have_gphy || have_bphy);
+ 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_aphy = 0;
+ have_bphy = 0;
+ have_gphy = 0;
+ switch (dev->phy.type) {
+ case B43_PHYTYPE_A:
+ have_aphy = 1;
+ break;
+ case B43_PHYTYPE_B:
+ have_bphy = 1;
+ break;
+ case B43_PHYTYPE_G:
+ have_gphy = 1;
+ break;
+ default:
+ B43_WARN_ON(1);
+ }
+ }
+ dev->phy.gmode = (have_gphy || have_bphy);
+ 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_aphy, have_bphy, have_gphy);
+ 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_rfkill_alloc(dev);
+
+ 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);
+ if (modparam_pio)
+ wldev->__using_pio = 1;
+ 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.r1.boardflags_lo |= B43_BFL_BTCOEXIST;
+ if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
+ bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
+ bus->sprom.r1.boardflags_lo |= B43_BFL_PACTRL;
+
+ /* Handle case when gain is not set in sprom */
+ if (bus->sprom.r1.antenna_gain_a == 0xFF)
+ bus->sprom.r1.antenna_gain_a = 2;
+ if (bus->sprom.r1.antenna_gain_bg == 0xFF)
+ bus->sprom.r1.antenna_gain_bg = 2;
+
+ /* Convert Antennagain values to Q5.2 */
+ bus->sprom.r1.antenna_gain_a <<= 2;
+ bus->sprom.r1.antenna_gain_bg <<= 2;
+}
+
+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;
+ 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->r1.et1mac))
+ SET_IEEE80211_PERM_ADDR(hw, sprom->r1.et1mac);
+ else
+ SET_IEEE80211_PERM_ADDR(hw, sprom->r1.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);
+ 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