2 * This file is part of wl1271
4 * Copyright (C) 2008-2010 Nokia Corporation
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
24 #include <linux/module.h>
25 #include <linux/firmware.h>
26 #include <linux/delay.h>
27 #include <linux/spi/spi.h>
28 #include <linux/crc32.h>
29 #include <linux/etherdevice.h>
30 #include <linux/vmalloc.h>
31 #include <linux/platform_device.h>
32 #include <linux/slab.h>
35 #include "wl12xx_80211.h"
36 #include "wl1271_reg.h"
37 #include "wl1271_io.h"
38 #include "wl1271_event.h"
39 #include "wl1271_tx.h"
40 #include "wl1271_rx.h"
41 #include "wl1271_ps.h"
42 #include "wl1271_init.h"
43 #include "wl1271_debugfs.h"
44 #include "wl1271_cmd.h"
45 #include "wl1271_boot.h"
46 #include "wl1271_testmode.h"
47 #include "wl1271_scan.h"
49 #define WL1271_BOOT_RETRIES 3
51 static struct conf_drv_settings default_conf = {
54 [CONF_SG_BT_PER_THRESHOLD] = 7500,
55 [CONF_SG_HV3_MAX_OVERRIDE] = 0,
56 [CONF_SG_BT_NFS_SAMPLE_INTERVAL] = 400,
57 [CONF_SG_BT_LOAD_RATIO] = 50,
58 [CONF_SG_AUTO_PS_MODE] = 1,
59 [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
60 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
61 [CONF_SG_ANTENNA_CONFIGURATION] = 0,
62 [CONF_SG_BEACON_MISS_PERCENT] = 60,
63 [CONF_SG_RATE_ADAPT_THRESH] = 12,
64 [CONF_SG_RATE_ADAPT_SNR] = 0,
65 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_BR] = 10,
66 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_BR] = 30,
67 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_BR] = 8,
68 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_BR] = 20,
69 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_BR] = 50,
70 /* Note: with UPSD, this should be 4 */
71 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_BR] = 8,
72 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_EDR] = 7,
73 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_EDR] = 25,
74 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_EDR] = 20,
75 /* Note: with UPDS, this should be 15 */
76 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_EDR] = 8,
77 /* Note: with UPDS, this should be 50 */
78 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_EDR] = 40,
79 /* Note: with UPDS, this should be 10 */
80 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_EDR] = 20,
83 [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
84 [CONF_SG_PS_POLL_TIMEOUT] = 10,
85 [CONF_SG_UPSD_TIMEOUT] = 10,
86 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MIN_EDR] = 7,
87 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MAX_EDR] = 15,
88 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_MASTER_EDR] = 15,
89 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MIN_EDR] = 8,
90 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MAX_EDR] = 20,
91 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_SLAVE_EDR] = 15,
92 [CONF_SG_WLAN_ACTIVE_BT_ACL_MIN_BR] = 20,
93 [CONF_SG_WLAN_ACTIVE_BT_ACL_MAX_BR] = 50,
94 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_BR] = 10,
95 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
96 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP] = 800,
97 [CONF_SG_PASSIVE_SCAN_A2DP_BT_TIME] = 75,
98 [CONF_SG_PASSIVE_SCAN_A2DP_WLAN_TIME] = 15,
99 [CONF_SG_HV3_MAX_SERVED] = 6,
100 [CONF_SG_DHCP_TIME] = 5000,
101 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
103 .state = CONF_SG_PROTECTIVE,
106 .rx_msdu_life_time = 512000,
107 .packet_detection_threshold = 0,
108 .ps_poll_timeout = 15,
110 .rts_threshold = 2347,
111 .rx_cca_threshold = 0,
112 .irq_blk_threshold = 0xFFFF,
113 .irq_pkt_threshold = 0,
115 .queue_type = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
118 .tx_energy_detection = 0,
121 .short_retry_limit = 10,
122 .long_retry_limit = 10,
145 .aifsn = CONF_TX_AIFS_PIFS,
152 .aifsn = CONF_TX_AIFS_PIFS,
160 .channel_type = CONF_CHANNEL_TYPE_DCF,
161 .tsid = CONF_TX_AC_BE,
162 .ps_scheme = CONF_PS_SCHEME_LEGACY,
163 .ack_policy = CONF_ACK_POLICY_LEGACY,
168 .channel_type = CONF_CHANNEL_TYPE_DCF,
169 .tsid = CONF_TX_AC_BE,
170 .ps_scheme = CONF_PS_SCHEME_LEGACY,
171 .ack_policy = CONF_ACK_POLICY_LEGACY,
176 .channel_type = CONF_CHANNEL_TYPE_DCF,
177 .tsid = CONF_TX_AC_BE,
178 .ps_scheme = CONF_PS_SCHEME_LEGACY,
179 .ack_policy = CONF_ACK_POLICY_LEGACY,
184 .channel_type = CONF_CHANNEL_TYPE_DCF,
185 .tsid = CONF_TX_AC_BE,
186 .ps_scheme = CONF_PS_SCHEME_LEGACY,
187 .ack_policy = CONF_ACK_POLICY_LEGACY,
192 .channel_type = CONF_CHANNEL_TYPE_DCF,
193 .tsid = CONF_TX_AC_BE,
194 .ps_scheme = CONF_PS_SCHEME_LEGACY,
195 .ack_policy = CONF_ACK_POLICY_LEGACY,
200 .channel_type = CONF_CHANNEL_TYPE_DCF,
201 .tsid = CONF_TX_AC_BE,
202 .ps_scheme = CONF_PS_SCHEME_LEGACY,
203 .ack_policy = CONF_ACK_POLICY_LEGACY,
208 .channel_type = CONF_CHANNEL_TYPE_DCF,
209 .tsid = CONF_TX_AC_BE,
210 .ps_scheme = CONF_PS_SCHEME_LEGACY,
211 .ack_policy = CONF_ACK_POLICY_LEGACY,
215 .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
216 .tx_compl_timeout = 700,
217 .tx_compl_threshold = 4,
218 .basic_rate = CONF_HW_BIT_RATE_1MBPS,
219 .basic_rate_5 = CONF_HW_BIT_RATE_6MBPS,
222 .wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
223 .listen_interval = 1,
224 .bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
225 .bcn_filt_ie_count = 1,
228 .ie = WLAN_EID_CHANNEL_SWITCH,
229 .rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
232 .synch_fail_thold = 10,
233 .bss_lose_timeout = 100,
234 .beacon_rx_timeout = 10000,
235 .broadcast_timeout = 20000,
236 .rx_broadcast_in_ps = 1,
237 .ps_poll_threshold = 10,
238 .ps_poll_recovery_period = 700,
239 .bet_enable = CONF_BET_MODE_ENABLE,
240 .bet_max_consecutive = 10,
241 .psm_entry_retries = 3,
242 .keep_alive_interval = 55000,
243 .max_listen_interval = 20,
250 .host_clk_settling_time = 5000,
251 .host_fast_wakeup_support = false
254 /* FIXME: due to firmware bug, must use value 1 for now */
256 .avg_weight_rssi_beacon = 20,
257 .avg_weight_rssi_data = 10,
258 .avg_weight_snr_beacon = 20,
259 .avg_weight_snr_data = 10
263 static void wl1271_device_release(struct device *dev)
268 static struct platform_device wl1271_device = {
272 /* device model insists to have a release function */
274 .release = wl1271_device_release,
278 static LIST_HEAD(wl_list);
280 static void wl1271_conf_init(struct wl1271 *wl)
284 * This function applies the default configuration to the driver. This
285 * function is invoked upon driver load (spi probe.)
287 * The configuration is stored in a run-time structure in order to
288 * facilitate for run-time adjustment of any of the parameters. Making
289 * changes to the configuration structure will apply the new values on
290 * the next interface up (wl1271_op_start.)
293 /* apply driver default configuration */
294 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
298 static int wl1271_plt_init(struct wl1271 *wl)
300 struct conf_tx_ac_category *conf_ac;
301 struct conf_tx_tid *conf_tid;
304 ret = wl1271_cmd_general_parms(wl);
308 ret = wl1271_cmd_radio_parms(wl);
312 ret = wl1271_init_templates_config(wl);
316 ret = wl1271_acx_init_mem_config(wl);
320 /* PHY layer config */
321 ret = wl1271_init_phy_config(wl);
323 goto out_free_memmap;
325 ret = wl1271_acx_dco_itrim_params(wl);
327 goto out_free_memmap;
329 /* Initialize connection monitoring thresholds */
330 ret = wl1271_acx_conn_monit_params(wl, false);
332 goto out_free_memmap;
334 /* Bluetooth WLAN coexistence */
335 ret = wl1271_init_pta(wl);
337 goto out_free_memmap;
339 /* Energy detection */
340 ret = wl1271_init_energy_detection(wl);
342 goto out_free_memmap;
344 /* Default fragmentation threshold */
345 ret = wl1271_acx_frag_threshold(wl);
347 goto out_free_memmap;
349 /* Default TID configuration */
350 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
351 conf_tid = &wl->conf.tx.tid_conf[i];
352 ret = wl1271_acx_tid_cfg(wl, conf_tid->queue_id,
353 conf_tid->channel_type,
356 conf_tid->ack_policy,
357 conf_tid->apsd_conf[0],
358 conf_tid->apsd_conf[1]);
360 goto out_free_memmap;
363 /* Default AC configuration */
364 for (i = 0; i < wl->conf.tx.ac_conf_count; i++) {
365 conf_ac = &wl->conf.tx.ac_conf[i];
366 ret = wl1271_acx_ac_cfg(wl, conf_ac->ac, conf_ac->cw_min,
367 conf_ac->cw_max, conf_ac->aifsn,
368 conf_ac->tx_op_limit);
370 goto out_free_memmap;
373 /* Enable data path */
374 ret = wl1271_cmd_data_path(wl, 1);
376 goto out_free_memmap;
378 /* Configure for CAM power saving (ie. always active) */
379 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
381 goto out_free_memmap;
384 ret = wl1271_acx_pm_config(wl);
386 goto out_free_memmap;
391 kfree(wl->target_mem_map);
392 wl->target_mem_map = NULL;
397 static void wl1271_fw_status(struct wl1271 *wl,
398 struct wl1271_fw_status *status)
404 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
406 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
407 "drv_rx_counter = %d, tx_results_counter = %d)",
409 status->fw_rx_counter,
410 status->drv_rx_counter,
411 status->tx_results_counter);
413 /* update number of available TX blocks */
414 for (i = 0; i < NUM_TX_QUEUES; i++) {
415 u32 cnt = le32_to_cpu(status->tx_released_blks[i]) -
416 wl->tx_blocks_freed[i];
418 wl->tx_blocks_freed[i] =
419 le32_to_cpu(status->tx_released_blks[i]);
420 wl->tx_blocks_available += cnt;
424 /* if more blocks are available now, schedule some tx work */
425 if (total && !skb_queue_empty(&wl->tx_queue))
426 ieee80211_queue_work(wl->hw, &wl->tx_work);
428 /* update the host-chipset time offset */
430 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
431 (s64)le32_to_cpu(status->fw_localtime);
434 #define WL1271_IRQ_MAX_LOOPS 10
436 static void wl1271_irq_work(struct work_struct *work)
440 int loopcount = WL1271_IRQ_MAX_LOOPS;
443 container_of(work, struct wl1271, irq_work);
445 mutex_lock(&wl->mutex);
447 wl1271_debug(DEBUG_IRQ, "IRQ work");
449 if (unlikely(wl->state == WL1271_STATE_OFF))
452 ret = wl1271_ps_elp_wakeup(wl, true);
456 spin_lock_irqsave(&wl->wl_lock, flags);
457 while (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags) && loopcount) {
458 clear_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags);
459 spin_unlock_irqrestore(&wl->wl_lock, flags);
462 wl1271_fw_status(wl, wl->fw_status);
463 intr = le32_to_cpu(wl->fw_status->intr);
465 wl1271_debug(DEBUG_IRQ, "Zero interrupt received.");
466 spin_lock_irqsave(&wl->wl_lock, flags);
470 intr &= WL1271_INTR_MASK;
472 if (intr & WL1271_ACX_INTR_DATA) {
473 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
475 /* check for tx results */
476 if (wl->fw_status->tx_results_counter !=
477 (wl->tx_results_count & 0xff))
478 wl1271_tx_complete(wl);
480 wl1271_rx(wl, wl->fw_status);
483 if (intr & WL1271_ACX_INTR_EVENT_A) {
484 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
485 wl1271_event_handle(wl, 0);
488 if (intr & WL1271_ACX_INTR_EVENT_B) {
489 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
490 wl1271_event_handle(wl, 1);
493 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
494 wl1271_debug(DEBUG_IRQ,
495 "WL1271_ACX_INTR_INIT_COMPLETE");
497 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
498 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
500 spin_lock_irqsave(&wl->wl_lock, flags);
503 if (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags))
504 ieee80211_queue_work(wl->hw, &wl->irq_work);
506 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
507 spin_unlock_irqrestore(&wl->wl_lock, flags);
509 wl1271_ps_elp_sleep(wl);
512 mutex_unlock(&wl->mutex);
515 static int wl1271_fetch_firmware(struct wl1271 *wl)
517 const struct firmware *fw;
520 ret = request_firmware(&fw, WL1271_FW_NAME, wl1271_wl_to_dev(wl));
523 wl1271_error("could not get firmware: %d", ret);
528 wl1271_error("firmware size is not multiple of 32 bits: %zu",
534 wl->fw_len = fw->size;
535 wl->fw = vmalloc(wl->fw_len);
538 wl1271_error("could not allocate memory for the firmware");
543 memcpy(wl->fw, fw->data, wl->fw_len);
548 release_firmware(fw);
553 static int wl1271_fetch_nvs(struct wl1271 *wl)
555 const struct firmware *fw;
558 ret = request_firmware(&fw, WL1271_NVS_NAME, wl1271_wl_to_dev(wl));
561 wl1271_error("could not get nvs file: %d", ret);
566 * FIXME: the LEGACY NVS image support (NVS's missing the 5GHz band
567 * configurations) can be removed when those NVS files stop floating
570 if (fw->size != sizeof(struct wl1271_nvs_file) &&
571 (fw->size != WL1271_INI_LEGACY_NVS_FILE_SIZE ||
572 wl1271_11a_enabled())) {
573 wl1271_error("nvs size is not as expected: %zu != %zu",
574 fw->size, sizeof(struct wl1271_nvs_file));
579 wl->nvs = kmemdup(fw->data, sizeof(struct wl1271_nvs_file), GFP_KERNEL);
582 wl1271_error("could not allocate memory for the nvs file");
588 release_firmware(fw);
593 static void wl1271_fw_wakeup(struct wl1271 *wl)
597 elp_reg = ELPCTRL_WAKE_UP;
598 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
601 static int wl1271_setup(struct wl1271 *wl)
603 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
607 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
608 if (!wl->tx_res_if) {
609 kfree(wl->fw_status);
613 INIT_WORK(&wl->irq_work, wl1271_irq_work);
614 INIT_WORK(&wl->tx_work, wl1271_tx_work);
618 static int wl1271_chip_wakeup(struct wl1271 *wl)
620 struct wl1271_partition_set partition;
623 msleep(WL1271_PRE_POWER_ON_SLEEP);
625 msleep(WL1271_POWER_ON_SLEEP);
629 /* We don't need a real memory partition here, because we only want
630 * to use the registers at this point. */
631 memset(&partition, 0, sizeof(partition));
632 partition.reg.start = REGISTERS_BASE;
633 partition.reg.size = REGISTERS_DOWN_SIZE;
634 wl1271_set_partition(wl, &partition);
636 /* ELP module wake up */
637 wl1271_fw_wakeup(wl);
639 /* whal_FwCtrl_BootSm() */
641 /* 0. read chip id from CHIP_ID */
642 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
644 /* 1. check if chip id is valid */
646 switch (wl->chip.id) {
647 case CHIP_ID_1271_PG10:
648 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
651 ret = wl1271_setup(wl);
655 case CHIP_ID_1271_PG20:
656 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
659 ret = wl1271_setup(wl);
664 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
669 if (wl->fw == NULL) {
670 ret = wl1271_fetch_firmware(wl);
675 /* No NVS from netlink, try to get it from the filesystem */
676 if (wl->nvs == NULL) {
677 ret = wl1271_fetch_nvs(wl);
686 int wl1271_plt_start(struct wl1271 *wl)
688 int retries = WL1271_BOOT_RETRIES;
691 mutex_lock(&wl->mutex);
693 wl1271_notice("power up");
695 if (wl->state != WL1271_STATE_OFF) {
696 wl1271_error("cannot go into PLT state because not "
697 "in off state: %d", wl->state);
704 ret = wl1271_chip_wakeup(wl);
708 ret = wl1271_boot(wl);
712 ret = wl1271_plt_init(wl);
716 wl->state = WL1271_STATE_PLT;
717 wl1271_notice("firmware booted in PLT mode (%s)",
722 wl1271_disable_interrupts(wl);
723 mutex_unlock(&wl->mutex);
724 /* Unlocking the mutex in the middle of handling is
725 inherently unsafe. In this case we deem it safe to do,
726 because we need to let any possibly pending IRQ out of
727 the system (and while we are WL1271_STATE_OFF the IRQ
728 work function will not do anything.) Also, any other
729 possible concurrent operations will fail due to the
730 current state, hence the wl1271 struct should be safe. */
731 cancel_work_sync(&wl->irq_work);
732 mutex_lock(&wl->mutex);
734 wl1271_power_off(wl);
737 wl1271_error("firmware boot in PLT mode failed despite %d retries",
738 WL1271_BOOT_RETRIES);
740 mutex_unlock(&wl->mutex);
745 int wl1271_plt_stop(struct wl1271 *wl)
749 mutex_lock(&wl->mutex);
751 wl1271_notice("power down");
753 if (wl->state != WL1271_STATE_PLT) {
754 wl1271_error("cannot power down because not in PLT "
755 "state: %d", wl->state);
760 wl1271_disable_interrupts(wl);
761 wl1271_power_off(wl);
763 wl->state = WL1271_STATE_OFF;
767 mutex_unlock(&wl->mutex);
773 static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
775 struct wl1271 *wl = hw->priv;
776 struct ieee80211_conf *conf = &hw->conf;
777 struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
778 struct ieee80211_sta *sta = txinfo->control.sta;
781 /* peek into the rates configured in the STA entry */
782 spin_lock_irqsave(&wl->wl_lock, flags);
783 if (sta && sta->supp_rates[conf->channel->band] != wl->sta_rate_set) {
784 wl->sta_rate_set = sta->supp_rates[conf->channel->band];
785 set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
787 spin_unlock_irqrestore(&wl->wl_lock, flags);
789 /* queue the packet */
790 skb_queue_tail(&wl->tx_queue, skb);
793 * The chip specific setup must run before the first TX packet -
794 * before that, the tx_work will not be initialized!
797 ieee80211_queue_work(wl->hw, &wl->tx_work);
800 * The workqueue is slow to process the tx_queue and we need stop
801 * the queue here, otherwise the queue will get too long.
803 if (skb_queue_len(&wl->tx_queue) >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
804 wl1271_debug(DEBUG_TX, "op_tx: stopping queues");
806 spin_lock_irqsave(&wl->wl_lock, flags);
807 ieee80211_stop_queues(wl->hw);
808 set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags);
809 spin_unlock_irqrestore(&wl->wl_lock, flags);
815 static int wl1271_op_start(struct ieee80211_hw *hw)
817 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
820 * We have to delay the booting of the hardware because
821 * we need to know the local MAC address before downloading and
822 * initializing the firmware. The MAC address cannot be changed
823 * after boot, and without the proper MAC address, the firmware
824 * will not function properly.
826 * The MAC address is first known when the corresponding interface
827 * is added. That is where we will initialize the hardware.
833 static void wl1271_op_stop(struct ieee80211_hw *hw)
835 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
838 static int wl1271_op_add_interface(struct ieee80211_hw *hw,
839 struct ieee80211_vif *vif)
841 struct wl1271 *wl = hw->priv;
842 struct wiphy *wiphy = hw->wiphy;
843 int retries = WL1271_BOOT_RETRIES;
846 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
847 vif->type, vif->addr);
849 mutex_lock(&wl->mutex);
858 case NL80211_IFTYPE_STATION:
859 wl->bss_type = BSS_TYPE_STA_BSS;
860 wl->set_bss_type = BSS_TYPE_STA_BSS;
862 case NL80211_IFTYPE_ADHOC:
863 wl->bss_type = BSS_TYPE_IBSS;
864 wl->set_bss_type = BSS_TYPE_STA_BSS;
871 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
873 if (wl->state != WL1271_STATE_OFF) {
874 wl1271_error("cannot start because not in off state: %d",
882 ret = wl1271_chip_wakeup(wl);
886 ret = wl1271_boot(wl);
890 ret = wl1271_hw_init(wl);
894 wl->state = WL1271_STATE_ON;
895 wl1271_info("firmware booted (%s)", wl->chip.fw_ver);
897 /* update hw/fw version info in wiphy struct */
898 wiphy->hw_version = wl->chip.id;
899 strncpy(wiphy->fw_version, wl->chip.fw_ver,
900 sizeof(wiphy->fw_version));
905 wl1271_disable_interrupts(wl);
906 mutex_unlock(&wl->mutex);
907 /* Unlocking the mutex in the middle of handling is
908 inherently unsafe. In this case we deem it safe to do,
909 because we need to let any possibly pending IRQ out of
910 the system (and while we are WL1271_STATE_OFF the IRQ
911 work function will not do anything.) Also, any other
912 possible concurrent operations will fail due to the
913 current state, hence the wl1271 struct should be safe. */
914 cancel_work_sync(&wl->irq_work);
915 mutex_lock(&wl->mutex);
917 wl1271_power_off(wl);
920 wl1271_error("firmware boot failed despite %d retries",
921 WL1271_BOOT_RETRIES);
923 mutex_unlock(&wl->mutex);
926 list_add(&wl->list, &wl_list);
931 static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
932 struct ieee80211_vif *vif)
934 struct wl1271 *wl = hw->priv;
937 mutex_lock(&wl->mutex);
938 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
944 WARN_ON(wl->state != WL1271_STATE_ON);
946 /* enable dyn ps just in case (if left on due to fw crash etc) */
947 if (wl->bss_type == BSS_TYPE_STA_BSS)
948 ieee80211_enable_dyn_ps(wl->vif);
950 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
951 mutex_unlock(&wl->mutex);
952 ieee80211_scan_completed(wl->hw, true);
953 mutex_lock(&wl->mutex);
954 wl->scan.state = WL1271_SCAN_STATE_IDLE;
955 kfree(wl->scan.scanned_ch);
956 wl->scan.scanned_ch = NULL;
959 wl->state = WL1271_STATE_OFF;
961 wl1271_disable_interrupts(wl);
963 mutex_unlock(&wl->mutex);
965 cancel_work_sync(&wl->irq_work);
966 cancel_work_sync(&wl->tx_work);
967 cancel_delayed_work_sync(&wl->pspoll_work);
969 mutex_lock(&wl->mutex);
971 /* let's notify MAC80211 about the remaining pending TX frames */
973 wl1271_power_off(wl);
975 memset(wl->bssid, 0, ETH_ALEN);
976 memset(wl->ssid, 0, IW_ESSID_MAX_SIZE + 1);
978 wl->bss_type = MAX_BSS_TYPE;
979 wl->set_bss_type = MAX_BSS_TYPE;
980 wl->band = IEEE80211_BAND_2GHZ;
983 wl->psm_entry_retry = 0;
984 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
985 wl->tx_blocks_available = 0;
986 wl->tx_results_count = 0;
987 wl->tx_packets_count = 0;
988 wl->tx_security_last_seq = 0;
989 wl->tx_security_seq = 0;
991 wl->session_counter = 0;
992 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
993 wl->sta_rate_set = 0;
998 for (i = 0; i < NUM_TX_QUEUES; i++)
999 wl->tx_blocks_freed[i] = 0;
1001 wl1271_debugfs_reset(wl);
1003 kfree(wl->fw_status);
1004 wl->fw_status = NULL;
1005 kfree(wl->tx_res_if);
1006 wl->tx_res_if = NULL;
1007 kfree(wl->target_mem_map);
1008 wl->target_mem_map = NULL;
1010 mutex_unlock(&wl->mutex);
1013 static void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters)
1015 wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
1016 wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
1018 /* combine requested filters with current filter config */
1019 filters = wl->filters | filters;
1021 wl1271_debug(DEBUG_FILTERS, "RX filters set: ");
1023 if (filters & FIF_PROMISC_IN_BSS) {
1024 wl1271_debug(DEBUG_FILTERS, " - FIF_PROMISC_IN_BSS");
1025 wl->rx_config &= ~CFG_UNI_FILTER_EN;
1026 wl->rx_config |= CFG_BSSID_FILTER_EN;
1028 if (filters & FIF_BCN_PRBRESP_PROMISC) {
1029 wl1271_debug(DEBUG_FILTERS, " - FIF_BCN_PRBRESP_PROMISC");
1030 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
1031 wl->rx_config &= ~CFG_SSID_FILTER_EN;
1033 if (filters & FIF_OTHER_BSS) {
1034 wl1271_debug(DEBUG_FILTERS, " - FIF_OTHER_BSS");
1035 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
1037 if (filters & FIF_CONTROL) {
1038 wl1271_debug(DEBUG_FILTERS, " - FIF_CONTROL");
1039 wl->rx_filter |= CFG_RX_CTL_EN;
1041 if (filters & FIF_FCSFAIL) {
1042 wl1271_debug(DEBUG_FILTERS, " - FIF_FCSFAIL");
1043 wl->rx_filter |= CFG_RX_FCS_ERROR;
1047 static int wl1271_dummy_join(struct wl1271 *wl)
1050 /* we need to use a dummy BSSID for now */
1051 static const u8 dummy_bssid[ETH_ALEN] = { 0x0b, 0xad, 0xde,
1054 memcpy(wl->bssid, dummy_bssid, ETH_ALEN);
1056 /* pass through frames from all BSS */
1057 wl1271_configure_filters(wl, FIF_OTHER_BSS);
1059 ret = wl1271_cmd_join(wl, wl->set_bss_type);
1063 set_bit(WL1271_FLAG_JOINED, &wl->flags);
1069 static int wl1271_join(struct wl1271 *wl, bool set_assoc)
1074 * One of the side effects of the JOIN command is that is clears
1075 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
1076 * to a WPA/WPA2 access point will therefore kill the data-path.
1077 * Currently there is no supported scenario for JOIN during
1078 * association - if it becomes a supported scenario, the WPA/WPA2 keys
1079 * must be handled somehow.
1082 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1083 wl1271_info("JOIN while associated.");
1086 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
1088 ret = wl1271_cmd_join(wl, wl->set_bss_type);
1092 set_bit(WL1271_FLAG_JOINED, &wl->flags);
1094 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1098 * The join command disable the keep-alive mode, shut down its process,
1099 * and also clear the template config, so we need to reset it all after
1100 * the join. The acx_aid starts the keep-alive process, and the order
1101 * of the commands below is relevant.
1103 ret = wl1271_acx_keep_alive_mode(wl, true);
1107 ret = wl1271_acx_aid(wl, wl->aid);
1111 ret = wl1271_cmd_build_klv_null_data(wl);
1115 ret = wl1271_acx_keep_alive_config(wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
1116 ACX_KEEP_ALIVE_TPL_VALID);
1124 static int wl1271_unjoin(struct wl1271 *wl)
1128 /* to stop listening to a channel, we disconnect */
1129 ret = wl1271_cmd_disconnect(wl);
1133 clear_bit(WL1271_FLAG_JOINED, &wl->flags);
1134 memset(wl->bssid, 0, ETH_ALEN);
1136 /* stop filterting packets based on bssid */
1137 wl1271_configure_filters(wl, FIF_OTHER_BSS);
1143 static void wl1271_set_band_rate(struct wl1271 *wl)
1145 if (wl->band == IEEE80211_BAND_2GHZ)
1146 wl->basic_rate_set = wl->conf.tx.basic_rate;
1148 wl->basic_rate_set = wl->conf.tx.basic_rate_5;
1151 static u32 wl1271_min_rate_get(struct wl1271 *wl)
1156 if (!wl->basic_rate_set) {
1158 wl->basic_rate_set = wl->conf.tx.basic_rate;
1161 for (i = 0; !rate; i++) {
1162 if ((wl->basic_rate_set >> i) & 0x1)
1169 static int wl1271_handle_idle(struct wl1271 *wl, bool idle)
1174 if (test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
1175 ret = wl1271_unjoin(wl);
1179 wl->rate_set = wl1271_min_rate_get(wl);
1180 wl->sta_rate_set = 0;
1181 ret = wl1271_acx_rate_policies(wl);
1184 ret = wl1271_acx_keep_alive_config(
1185 wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
1186 ACX_KEEP_ALIVE_TPL_INVALID);
1189 set_bit(WL1271_FLAG_IDLE, &wl->flags);
1191 /* increment the session counter */
1192 wl->session_counter++;
1193 if (wl->session_counter >= SESSION_COUNTER_MAX)
1194 wl->session_counter = 0;
1195 ret = wl1271_dummy_join(wl);
1198 clear_bit(WL1271_FLAG_IDLE, &wl->flags);
1205 static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
1207 struct wl1271 *wl = hw->priv;
1208 struct ieee80211_conf *conf = &hw->conf;
1209 int channel, ret = 0;
1211 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
1213 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s",
1215 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
1217 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use");
1220 * mac80211 will go to idle nearly immediately after transmitting some
1221 * frames, such as the deauth. To make sure those frames reach the air,
1222 * wait here until the TX queue is fully flushed.
1224 if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
1225 (conf->flags & IEEE80211_CONF_IDLE))
1226 wl1271_tx_flush(wl);
1228 mutex_lock(&wl->mutex);
1230 if (unlikely(wl->state == WL1271_STATE_OFF))
1233 ret = wl1271_ps_elp_wakeup(wl, false);
1237 /* if the channel changes while joined, join again */
1238 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
1239 ((wl->band != conf->channel->band) ||
1240 (wl->channel != channel))) {
1241 wl->band = conf->channel->band;
1242 wl->channel = channel;
1245 * FIXME: the mac80211 should really provide a fixed rate
1246 * to use here. for now, just use the smallest possible rate
1247 * for the band as a fixed rate for association frames and
1248 * other control messages.
1250 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1251 wl1271_set_band_rate(wl);
1253 wl->basic_rate = wl1271_min_rate_get(wl);
1254 ret = wl1271_acx_rate_policies(wl);
1256 wl1271_warning("rate policy for update channel "
1259 if (test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
1260 ret = wl1271_join(wl, false);
1262 wl1271_warning("cmd join to update channel "
1267 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1268 ret = wl1271_handle_idle(wl, conf->flags & IEEE80211_CONF_IDLE);
1270 wl1271_warning("idle mode change failed %d", ret);
1274 * if mac80211 changes the PSM mode, make sure the mode is not
1275 * incorrectly changed after the pspoll failure active window.
1277 if (changed & IEEE80211_CONF_CHANGE_PS)
1278 clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
1280 if (conf->flags & IEEE80211_CONF_PS &&
1281 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
1282 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
1285 * We enter PSM only if we're already associated.
1286 * If we're not, we'll enter it when joining an SSID,
1287 * through the bss_info_changed() hook.
1289 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
1290 wl1271_debug(DEBUG_PSM, "psm enabled");
1291 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
1294 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
1295 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
1296 wl1271_debug(DEBUG_PSM, "psm disabled");
1298 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
1300 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
1301 ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
1305 if (conf->power_level != wl->power_level) {
1306 ret = wl1271_acx_tx_power(wl, conf->power_level);
1310 wl->power_level = conf->power_level;
1314 wl1271_ps_elp_sleep(wl);
1317 mutex_unlock(&wl->mutex);
1322 struct wl1271_filter_params {
1325 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
1328 static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
1329 struct netdev_hw_addr_list *mc_list)
1331 struct wl1271_filter_params *fp;
1332 struct netdev_hw_addr *ha;
1333 struct wl1271 *wl = hw->priv;
1335 if (unlikely(wl->state == WL1271_STATE_OFF))
1338 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
1340 wl1271_error("Out of memory setting filters.");
1344 /* update multicast filtering parameters */
1345 fp->mc_list_length = 0;
1346 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
1347 fp->enabled = false;
1350 netdev_hw_addr_list_for_each(ha, mc_list) {
1351 memcpy(fp->mc_list[fp->mc_list_length],
1352 ha->addr, ETH_ALEN);
1353 fp->mc_list_length++;
1357 return (u64)(unsigned long)fp;
1360 #define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
1363 FIF_BCN_PRBRESP_PROMISC | \
1367 static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
1368 unsigned int changed,
1369 unsigned int *total, u64 multicast)
1371 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
1372 struct wl1271 *wl = hw->priv;
1375 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter");
1377 mutex_lock(&wl->mutex);
1379 *total &= WL1271_SUPPORTED_FILTERS;
1380 changed &= WL1271_SUPPORTED_FILTERS;
1382 if (unlikely(wl->state == WL1271_STATE_OFF))
1385 ret = wl1271_ps_elp_wakeup(wl, false);
1390 if (*total & FIF_ALLMULTI)
1391 ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
1393 ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
1395 fp->mc_list_length);
1399 /* determine, whether supported filter values have changed */
1403 /* configure filters */
1404 wl->filters = *total;
1405 wl1271_configure_filters(wl, 0);
1407 /* apply configured filters */
1408 ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
1413 wl1271_ps_elp_sleep(wl);
1416 mutex_unlock(&wl->mutex);
1420 static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1421 struct ieee80211_vif *vif,
1422 struct ieee80211_sta *sta,
1423 struct ieee80211_key_conf *key_conf)
1425 struct wl1271 *wl = hw->priv;
1432 static const u8 bcast_addr[ETH_ALEN] =
1433 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1435 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
1437 addr = sta ? sta->addr : bcast_addr;
1439 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
1440 wl1271_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
1441 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
1442 key_conf->alg, key_conf->keyidx,
1443 key_conf->keylen, key_conf->flags);
1444 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
1446 if (is_zero_ether_addr(addr)) {
1447 /* We dont support TX only encryption */
1452 mutex_lock(&wl->mutex);
1454 ret = wl1271_ps_elp_wakeup(wl, false);
1458 switch (key_conf->alg) {
1462 key_conf->hw_key_idx = key_conf->keyidx;
1465 key_type = KEY_TKIP;
1467 key_conf->hw_key_idx = key_conf->keyidx;
1468 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
1469 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
1474 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1475 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
1476 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
1479 wl1271_error("Unknown key algo 0x%x", key_conf->alg);
1487 ret = wl1271_cmd_set_key(wl, KEY_ADD_OR_REPLACE,
1488 key_conf->keyidx, key_type,
1489 key_conf->keylen, key_conf->key,
1490 addr, tx_seq_32, tx_seq_16);
1492 wl1271_error("Could not add or replace key");
1496 /* the default WEP key needs to be configured at least once */
1497 if (key_type == KEY_WEP) {
1498 ret = wl1271_cmd_set_default_wep_key(wl,
1506 /* The wl1271 does not allow to remove unicast keys - they
1507 will be cleared automatically on next CMD_JOIN. Ignore the
1508 request silently, as we dont want the mac80211 to emit
1509 an error message. */
1510 if (!is_broadcast_ether_addr(addr))
1513 ret = wl1271_cmd_set_key(wl, KEY_REMOVE,
1514 key_conf->keyidx, key_type,
1515 key_conf->keylen, key_conf->key,
1518 wl1271_error("Could not remove key");
1524 wl1271_error("Unsupported key cmd 0x%x", cmd);
1530 wl1271_ps_elp_sleep(wl);
1533 mutex_unlock(&wl->mutex);
1539 static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
1540 struct ieee80211_vif *vif,
1541 struct cfg80211_scan_request *req)
1543 struct wl1271 *wl = hw->priv;
1548 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
1551 ssid = req->ssids[0].ssid;
1552 len = req->ssids[0].ssid_len;
1555 mutex_lock(&wl->mutex);
1557 ret = wl1271_ps_elp_wakeup(wl, false);
1561 if (wl1271_11a_enabled())
1562 ret = wl1271_scan(hw->priv, ssid, len, req);
1564 ret = wl1271_scan(hw->priv, ssid, len, req);
1566 wl1271_ps_elp_sleep(wl);
1569 mutex_unlock(&wl->mutex);
1574 static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1576 struct wl1271 *wl = hw->priv;
1579 mutex_lock(&wl->mutex);
1581 if (unlikely(wl->state == WL1271_STATE_OFF))
1584 ret = wl1271_ps_elp_wakeup(wl, false);
1588 ret = wl1271_acx_rts_threshold(wl, (u16) value);
1590 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
1592 wl1271_ps_elp_sleep(wl);
1595 mutex_unlock(&wl->mutex);
1600 static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *beacon)
1602 u8 *ptr = beacon->data +
1603 offsetof(struct ieee80211_mgmt, u.beacon.variable);
1605 /* find the location of the ssid in the beacon */
1606 while (ptr < beacon->data + beacon->len) {
1607 if (ptr[0] == WLAN_EID_SSID) {
1608 wl->ssid_len = ptr[1];
1609 memcpy(wl->ssid, ptr+2, wl->ssid_len);
1614 wl1271_error("ad-hoc beacon template has no SSID!\n");
1617 static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
1618 struct ieee80211_vif *vif,
1619 struct ieee80211_bss_conf *bss_conf,
1622 enum wl1271_cmd_ps_mode mode;
1623 struct wl1271 *wl = hw->priv;
1624 bool do_join = false;
1625 bool set_assoc = false;
1628 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed");
1630 mutex_lock(&wl->mutex);
1632 ret = wl1271_ps_elp_wakeup(wl, false);
1636 if ((changed && BSS_CHANGED_BEACON_INT) &&
1637 (wl->bss_type == BSS_TYPE_IBSS)) {
1638 wl1271_debug(DEBUG_ADHOC, "ad-hoc beacon interval updated: %d",
1639 bss_conf->beacon_int);
1641 wl->beacon_int = bss_conf->beacon_int;
1645 if ((changed && BSS_CHANGED_BEACON) &&
1646 (wl->bss_type == BSS_TYPE_IBSS)) {
1647 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
1649 wl1271_debug(DEBUG_ADHOC, "ad-hoc beacon updated");
1652 struct ieee80211_hdr *hdr;
1654 wl1271_ssid_set(wl, beacon);
1655 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON,
1658 wl1271_min_rate_get(wl));
1661 dev_kfree_skb(beacon);
1665 hdr = (struct ieee80211_hdr *) beacon->data;
1666 hdr->frame_control = cpu_to_le16(
1667 IEEE80211_FTYPE_MGMT |
1668 IEEE80211_STYPE_PROBE_RESP);
1670 ret = wl1271_cmd_template_set(wl,
1671 CMD_TEMPL_PROBE_RESPONSE,
1674 wl1271_min_rate_get(wl));
1675 dev_kfree_skb(beacon);
1679 /* Need to update the SSID (for filtering etc) */
1684 if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
1685 (wl->bss_type == BSS_TYPE_IBSS)) {
1686 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
1687 bss_conf->enable_beacon ? "enabled" : "disabled");
1689 if (bss_conf->enable_beacon)
1690 wl->set_bss_type = BSS_TYPE_IBSS;
1692 wl->set_bss_type = BSS_TYPE_STA_BSS;
1696 if (changed & BSS_CHANGED_CQM) {
1697 bool enable = false;
1698 if (bss_conf->cqm_rssi_thold)
1700 ret = wl1271_acx_rssi_snr_trigger(wl, enable,
1701 bss_conf->cqm_rssi_thold,
1702 bss_conf->cqm_rssi_hyst);
1705 wl->rssi_thold = bss_conf->cqm_rssi_thold;
1708 if ((changed & BSS_CHANGED_BSSID) &&
1710 * Now we know the correct bssid, so we send a new join command
1711 * and enable the BSSID filter
1713 memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
1714 memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
1716 ret = wl1271_cmd_build_null_data(wl);
1720 ret = wl1271_build_qos_null_data(wl);
1724 /* filter out all packets not from this BSSID */
1725 wl1271_configure_filters(wl, 0);
1727 /* Need to update the BSSID (for filtering etc) */
1731 if (changed & BSS_CHANGED_ASSOC) {
1732 if (bss_conf->assoc) {
1734 wl->aid = bss_conf->aid;
1737 wl->ps_poll_failures = 0;
1740 * use basic rates from AP, and determine lowest rate
1741 * to use with control frames.
1743 rates = bss_conf->basic_rates;
1744 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
1746 wl->basic_rate = wl1271_min_rate_get(wl);
1747 ret = wl1271_acx_rate_policies(wl);
1752 * with wl1271, we don't need to update the
1753 * beacon_int and dtim_period, because the firmware
1754 * updates it by itself when the first beacon is
1755 * received after a join.
1757 ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
1762 * The SSID is intentionally set to NULL here - the
1763 * firmware will set the probe request with a
1764 * broadcast SSID regardless of what we set in the
1767 ret = wl1271_cmd_build_probe_req(wl, NULL, 0,
1770 /* enable the connection monitoring feature */
1771 ret = wl1271_acx_conn_monit_params(wl, true);
1775 /* If we want to go in PSM but we're not there yet */
1776 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
1777 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1778 mode = STATION_POWER_SAVE_MODE;
1779 ret = wl1271_ps_set_mode(wl, mode, true);
1784 /* use defaults when not associated */
1785 clear_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
1788 /* re-enable dynamic ps - just in case */
1789 ieee80211_enable_dyn_ps(wl->vif);
1791 /* revert back to minimum rates for the current band */
1792 wl1271_set_band_rate(wl);
1793 wl->basic_rate = wl1271_min_rate_get(wl);
1794 ret = wl1271_acx_rate_policies(wl);
1798 /* disable connection monitor features */
1799 ret = wl1271_acx_conn_monit_params(wl, false);
1801 /* Disable the keep-alive feature */
1802 ret = wl1271_acx_keep_alive_mode(wl, false);
1810 if (changed & BSS_CHANGED_ERP_SLOT) {
1811 if (bss_conf->use_short_slot)
1812 ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
1814 ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
1816 wl1271_warning("Set slot time failed %d", ret);
1821 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1822 if (bss_conf->use_short_preamble)
1823 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
1825 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
1828 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1829 if (bss_conf->use_cts_prot)
1830 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
1832 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
1834 wl1271_warning("Set ctsprotect failed %d", ret);
1839 if (changed & BSS_CHANGED_ARP_FILTER) {
1840 __be32 addr = bss_conf->arp_addr_list[0];
1841 WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
1843 if (bss_conf->arp_addr_cnt == 1 && bss_conf->arp_filter_enabled)
1844 ret = wl1271_acx_arp_ip_filter(wl, true, addr);
1846 ret = wl1271_acx_arp_ip_filter(wl, false, addr);
1853 ret = wl1271_join(wl, set_assoc);
1855 wl1271_warning("cmd join failed %d", ret);
1861 wl1271_ps_elp_sleep(wl);
1864 mutex_unlock(&wl->mutex);
1867 static int wl1271_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
1868 const struct ieee80211_tx_queue_params *params)
1870 struct wl1271 *wl = hw->priv;
1874 mutex_lock(&wl->mutex);
1876 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
1878 ret = wl1271_ps_elp_wakeup(wl, false);
1882 /* the txop is confed in units of 32us by the mac80211, we need us */
1883 ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
1884 params->cw_min, params->cw_max,
1885 params->aifs, params->txop << 5);
1890 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
1892 ps_scheme = CONF_PS_SCHEME_LEGACY;
1894 ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
1895 CONF_CHANNEL_TYPE_EDCF,
1896 wl1271_tx_get_queue(queue),
1897 ps_scheme, CONF_ACK_POLICY_LEGACY, 0, 0);
1902 wl1271_ps_elp_sleep(wl);
1905 mutex_unlock(&wl->mutex);
1910 static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw)
1913 struct wl1271 *wl = hw->priv;
1914 u64 mactime = ULLONG_MAX;
1917 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
1919 mutex_lock(&wl->mutex);
1921 ret = wl1271_ps_elp_wakeup(wl, false);
1925 ret = wl1271_acx_tsf_info(wl, &mactime);
1930 wl1271_ps_elp_sleep(wl);
1933 mutex_unlock(&wl->mutex);
1937 static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
1938 struct survey_info *survey)
1940 struct wl1271 *wl = hw->priv;
1941 struct ieee80211_conf *conf = &hw->conf;
1946 survey->channel = conf->channel;
1947 survey->filled = SURVEY_INFO_NOISE_DBM;
1948 survey->noise = wl->noise;
1953 /* can't be const, mac80211 writes to this */
1954 static struct ieee80211_rate wl1271_rates[] = {
1956 .hw_value = CONF_HW_BIT_RATE_1MBPS,
1957 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
1959 .hw_value = CONF_HW_BIT_RATE_2MBPS,
1960 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
1961 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1963 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
1964 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
1965 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1967 .hw_value = CONF_HW_BIT_RATE_11MBPS,
1968 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
1969 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1971 .hw_value = CONF_HW_BIT_RATE_6MBPS,
1972 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
1974 .hw_value = CONF_HW_BIT_RATE_9MBPS,
1975 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
1977 .hw_value = CONF_HW_BIT_RATE_12MBPS,
1978 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
1980 .hw_value = CONF_HW_BIT_RATE_18MBPS,
1981 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
1983 .hw_value = CONF_HW_BIT_RATE_24MBPS,
1984 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
1986 .hw_value = CONF_HW_BIT_RATE_36MBPS,
1987 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
1989 .hw_value = CONF_HW_BIT_RATE_48MBPS,
1990 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
1992 .hw_value = CONF_HW_BIT_RATE_54MBPS,
1993 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
1996 /* can't be const, mac80211 writes to this */
1997 static struct ieee80211_channel wl1271_channels[] = {
1998 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
1999 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
2000 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
2001 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
2002 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
2003 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
2004 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
2005 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
2006 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
2007 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
2008 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
2009 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
2010 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
2013 /* mapping to indexes for wl1271_rates */
2014 static const u8 wl1271_rate_to_idx_2ghz[] = {
2015 /* MCS rates are used only with 11n */
2016 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */
2017 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */
2018 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */
2019 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */
2020 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */
2021 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */
2022 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */
2023 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS0 */
2025 11, /* CONF_HW_RXTX_RATE_54 */
2026 10, /* CONF_HW_RXTX_RATE_48 */
2027 9, /* CONF_HW_RXTX_RATE_36 */
2028 8, /* CONF_HW_RXTX_RATE_24 */
2030 /* TI-specific rate */
2031 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
2033 7, /* CONF_HW_RXTX_RATE_18 */
2034 6, /* CONF_HW_RXTX_RATE_12 */
2035 3, /* CONF_HW_RXTX_RATE_11 */
2036 5, /* CONF_HW_RXTX_RATE_9 */
2037 4, /* CONF_HW_RXTX_RATE_6 */
2038 2, /* CONF_HW_RXTX_RATE_5_5 */
2039 1, /* CONF_HW_RXTX_RATE_2 */
2040 0 /* CONF_HW_RXTX_RATE_1 */
2043 /* can't be const, mac80211 writes to this */
2044 static struct ieee80211_supported_band wl1271_band_2ghz = {
2045 .channels = wl1271_channels,
2046 .n_channels = ARRAY_SIZE(wl1271_channels),
2047 .bitrates = wl1271_rates,
2048 .n_bitrates = ARRAY_SIZE(wl1271_rates),
2051 /* 5 GHz data rates for WL1273 */
2052 static struct ieee80211_rate wl1271_rates_5ghz[] = {
2054 .hw_value = CONF_HW_BIT_RATE_6MBPS,
2055 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
2057 .hw_value = CONF_HW_BIT_RATE_9MBPS,
2058 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
2060 .hw_value = CONF_HW_BIT_RATE_12MBPS,
2061 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
2063 .hw_value = CONF_HW_BIT_RATE_18MBPS,
2064 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
2066 .hw_value = CONF_HW_BIT_RATE_24MBPS,
2067 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
2069 .hw_value = CONF_HW_BIT_RATE_36MBPS,
2070 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
2072 .hw_value = CONF_HW_BIT_RATE_48MBPS,
2073 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
2075 .hw_value = CONF_HW_BIT_RATE_54MBPS,
2076 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
2079 /* 5 GHz band channels for WL1273 */
2080 static struct ieee80211_channel wl1271_channels_5ghz[] = {
2081 { .hw_value = 183, .center_freq = 4915},
2082 { .hw_value = 184, .center_freq = 4920},
2083 { .hw_value = 185, .center_freq = 4925},
2084 { .hw_value = 187, .center_freq = 4935},
2085 { .hw_value = 188, .center_freq = 4940},
2086 { .hw_value = 189, .center_freq = 4945},
2087 { .hw_value = 192, .center_freq = 4960},
2088 { .hw_value = 196, .center_freq = 4980},
2089 { .hw_value = 7, .center_freq = 5035},
2090 { .hw_value = 8, .center_freq = 5040},
2091 { .hw_value = 9, .center_freq = 5045},
2092 { .hw_value = 11, .center_freq = 5055},
2093 { .hw_value = 12, .center_freq = 5060},
2094 { .hw_value = 16, .center_freq = 5080},
2095 { .hw_value = 34, .center_freq = 5170},
2096 { .hw_value = 36, .center_freq = 5180},
2097 { .hw_value = 38, .center_freq = 5190},
2098 { .hw_value = 40, .center_freq = 5200},
2099 { .hw_value = 42, .center_freq = 5210},
2100 { .hw_value = 44, .center_freq = 5220},
2101 { .hw_value = 46, .center_freq = 5230},
2102 { .hw_value = 48, .center_freq = 5240},
2103 { .hw_value = 52, .center_freq = 5260},
2104 { .hw_value = 56, .center_freq = 5280},
2105 { .hw_value = 60, .center_freq = 5300},
2106 { .hw_value = 64, .center_freq = 5320},
2107 { .hw_value = 100, .center_freq = 5500},
2108 { .hw_value = 104, .center_freq = 5520},
2109 { .hw_value = 108, .center_freq = 5540},
2110 { .hw_value = 112, .center_freq = 5560},
2111 { .hw_value = 116, .center_freq = 5580},
2112 { .hw_value = 120, .center_freq = 5600},
2113 { .hw_value = 124, .center_freq = 5620},
2114 { .hw_value = 128, .center_freq = 5640},
2115 { .hw_value = 132, .center_freq = 5660},
2116 { .hw_value = 136, .center_freq = 5680},
2117 { .hw_value = 140, .center_freq = 5700},
2118 { .hw_value = 149, .center_freq = 5745},
2119 { .hw_value = 153, .center_freq = 5765},
2120 { .hw_value = 157, .center_freq = 5785},
2121 { .hw_value = 161, .center_freq = 5805},
2122 { .hw_value = 165, .center_freq = 5825},
2125 /* mapping to indexes for wl1271_rates_5ghz */
2126 static const u8 wl1271_rate_to_idx_5ghz[] = {
2127 /* MCS rates are used only with 11n */
2128 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */
2129 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */
2130 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */
2131 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */
2132 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */
2133 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */
2134 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */
2135 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS0 */
2137 7, /* CONF_HW_RXTX_RATE_54 */
2138 6, /* CONF_HW_RXTX_RATE_48 */
2139 5, /* CONF_HW_RXTX_RATE_36 */
2140 4, /* CONF_HW_RXTX_RATE_24 */
2142 /* TI-specific rate */
2143 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
2145 3, /* CONF_HW_RXTX_RATE_18 */
2146 2, /* CONF_HW_RXTX_RATE_12 */
2147 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
2148 1, /* CONF_HW_RXTX_RATE_9 */
2149 0, /* CONF_HW_RXTX_RATE_6 */
2150 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
2151 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
2152 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
2155 static struct ieee80211_supported_band wl1271_band_5ghz = {
2156 .channels = wl1271_channels_5ghz,
2157 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
2158 .bitrates = wl1271_rates_5ghz,
2159 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
2162 static const u8 *wl1271_band_rate_to_idx[] = {
2163 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
2164 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
2167 static const struct ieee80211_ops wl1271_ops = {
2168 .start = wl1271_op_start,
2169 .stop = wl1271_op_stop,
2170 .add_interface = wl1271_op_add_interface,
2171 .remove_interface = wl1271_op_remove_interface,
2172 .config = wl1271_op_config,
2173 .prepare_multicast = wl1271_op_prepare_multicast,
2174 .configure_filter = wl1271_op_configure_filter,
2176 .set_key = wl1271_op_set_key,
2177 .hw_scan = wl1271_op_hw_scan,
2178 .bss_info_changed = wl1271_op_bss_info_changed,
2179 .set_rts_threshold = wl1271_op_set_rts_threshold,
2180 .conf_tx = wl1271_op_conf_tx,
2181 .get_tsf = wl1271_op_get_tsf,
2182 .get_survey = wl1271_op_get_survey,
2183 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
2187 u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate)
2191 BUG_ON(wl->band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
2193 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
2194 wl1271_error("Illegal RX rate from HW: %d", rate);
2198 idx = wl1271_band_rate_to_idx[wl->band][rate];
2199 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
2200 wl1271_error("Unsupported RX rate from HW: %d", rate);
2207 static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
2208 struct device_attribute *attr,
2211 struct wl1271 *wl = dev_get_drvdata(dev);
2214 /* FIXME: what's the maximum length of buf? page size?*/
2217 mutex_lock(&wl->mutex);
2218 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
2220 mutex_unlock(&wl->mutex);
2226 static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
2227 struct device_attribute *attr,
2228 const char *buf, size_t count)
2230 struct wl1271 *wl = dev_get_drvdata(dev);
2234 ret = strict_strtoul(buf, 10, &res);
2237 wl1271_warning("incorrect value written to bt_coex_mode");
2241 mutex_lock(&wl->mutex);
2245 if (res == wl->sg_enabled)
2248 wl->sg_enabled = res;
2250 if (wl->state == WL1271_STATE_OFF)
2253 ret = wl1271_ps_elp_wakeup(wl, false);
2257 wl1271_acx_sg_enable(wl, wl->sg_enabled);
2258 wl1271_ps_elp_sleep(wl);
2261 mutex_unlock(&wl->mutex);
2265 static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
2266 wl1271_sysfs_show_bt_coex_state,
2267 wl1271_sysfs_store_bt_coex_state);
2269 static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
2270 struct device_attribute *attr,
2273 struct wl1271 *wl = dev_get_drvdata(dev);
2276 /* FIXME: what's the maximum length of buf? page size?*/
2279 mutex_lock(&wl->mutex);
2280 if (wl->hw_pg_ver >= 0)
2281 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
2283 len = snprintf(buf, len, "n/a\n");
2284 mutex_unlock(&wl->mutex);
2289 static DEVICE_ATTR(hw_pg_ver, S_IRUGO | S_IWUSR,
2290 wl1271_sysfs_show_hw_pg_ver, NULL);
2292 int wl1271_register_hw(struct wl1271 *wl)
2296 if (wl->mac80211_registered)
2299 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
2301 ret = ieee80211_register_hw(wl->hw);
2303 wl1271_error("unable to register mac80211 hw: %d", ret);
2307 wl->mac80211_registered = true;
2309 wl1271_notice("loaded");
2313 EXPORT_SYMBOL_GPL(wl1271_register_hw);
2315 void wl1271_unregister_hw(struct wl1271 *wl)
2317 ieee80211_unregister_hw(wl->hw);
2318 wl->mac80211_registered = false;
2321 EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
2323 int wl1271_init_ieee80211(struct wl1271 *wl)
2325 /* The tx descriptor buffer and the TKIP space. */
2326 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
2327 sizeof(struct wl1271_tx_hw_descr);
2330 /* FIXME: find a proper value */
2331 wl->hw->channel_change_time = 10000;
2332 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
2334 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
2335 IEEE80211_HW_BEACON_FILTER |
2336 IEEE80211_HW_SUPPORTS_PS |
2337 IEEE80211_HW_SUPPORTS_UAPSD |
2338 IEEE80211_HW_HAS_RATE_CONTROL |
2339 IEEE80211_HW_CONNECTION_MONITOR |
2340 IEEE80211_HW_SUPPORTS_CQM_RSSI;
2342 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2343 BIT(NL80211_IFTYPE_ADHOC);
2344 wl->hw->wiphy->max_scan_ssids = 1;
2345 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
2347 if (wl1271_11a_enabled())
2348 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
2351 wl->hw->max_rates = 1;
2353 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
2357 EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
2359 #define WL1271_DEFAULT_CHANNEL 0
2361 struct ieee80211_hw *wl1271_alloc_hw(void)
2363 struct ieee80211_hw *hw;
2364 struct platform_device *plat_dev = NULL;
2368 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
2370 wl1271_error("could not alloc ieee80211_hw");
2375 plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
2377 wl1271_error("could not allocate platform_device");
2379 goto err_plat_alloc;
2383 memset(wl, 0, sizeof(*wl));
2385 INIT_LIST_HEAD(&wl->list);
2388 wl->plat_dev = plat_dev;
2390 skb_queue_head_init(&wl->tx_queue);
2392 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
2393 INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
2394 wl->channel = WL1271_DEFAULT_CHANNEL;
2395 wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
2396 wl->default_key = 0;
2398 wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
2399 wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
2400 wl->psm_entry_retry = 0;
2401 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
2402 wl->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
2403 wl->basic_rate = CONF_TX_RATE_MASK_BASIC;
2404 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
2405 wl->sta_rate_set = 0;
2406 wl->band = IEEE80211_BAND_2GHZ;
2409 wl->sg_enabled = true;
2412 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
2413 wl->tx_frames[i] = NULL;
2415 spin_lock_init(&wl->wl_lock);
2417 wl->state = WL1271_STATE_OFF;
2418 mutex_init(&wl->mutex);
2420 /* Apply default driver configuration. */
2421 wl1271_conf_init(wl);
2423 wl1271_debugfs_init(wl);
2425 /* Register platform device */
2426 ret = platform_device_register(wl->plat_dev);
2428 wl1271_error("couldn't register platform device");
2431 dev_set_drvdata(&wl->plat_dev->dev, wl);
2433 /* Create sysfs file to control bt coex state */
2434 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
2436 wl1271_error("failed to create sysfs file bt_coex_state");
2440 /* Create sysfs file to get HW PG version */
2441 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
2443 wl1271_error("failed to create sysfs file hw_pg_ver");
2444 goto err_bt_coex_state;
2450 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
2453 platform_device_unregister(wl->plat_dev);
2456 wl1271_debugfs_exit(wl);
2460 ieee80211_free_hw(hw);
2464 return ERR_PTR(ret);
2466 EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
2468 int wl1271_free_hw(struct wl1271 *wl)
2470 platform_device_unregister(wl->plat_dev);
2471 kfree(wl->plat_dev);
2473 wl1271_debugfs_exit(wl);
2480 kfree(wl->fw_status);
2481 kfree(wl->tx_res_if);
2483 ieee80211_free_hw(wl->hw);
2487 EXPORT_SYMBOL_GPL(wl1271_free_hw);
2489 MODULE_LICENSE("GPL");
2490 MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
2491 MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");