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/inetdevice.h>
32 #include <linux/platform_device.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"
48 #define WL1271_BOOT_RETRIES 3
50 static struct conf_drv_settings default_conf = {
53 [CONF_SG_BT_PER_THRESHOLD] = 7500,
54 [CONF_SG_HV3_MAX_OVERRIDE] = 0,
55 [CONF_SG_BT_NFS_SAMPLE_INTERVAL] = 400,
56 [CONF_SG_BT_LOAD_RATIO] = 50,
57 [CONF_SG_AUTO_PS_MODE] = 0,
58 [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
59 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
60 [CONF_SG_ANTENNA_CONFIGURATION] = 0,
61 [CONF_SG_BEACON_MISS_PERCENT] = 60,
62 [CONF_SG_RATE_ADAPT_THRESH] = 12,
63 [CONF_SG_RATE_ADAPT_SNR] = 0,
64 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_BR] = 10,
65 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_BR] = 30,
66 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_BR] = 8,
67 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_BR] = 20,
68 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_BR] = 50,
69 /* Note: with UPSD, this should be 4 */
70 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_BR] = 8,
71 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_EDR] = 7,
72 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_EDR] = 25,
73 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_EDR] = 20,
74 /* Note: with UPDS, this should be 15 */
75 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_EDR] = 8,
76 /* Note: with UPDS, this should be 50 */
77 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_EDR] = 40,
78 /* Note: with UPDS, this should be 10 */
79 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_EDR] = 20,
82 [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
83 [CONF_SG_PS_POLL_TIMEOUT] = 10,
84 [CONF_SG_UPSD_TIMEOUT] = 10,
85 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MIN_EDR] = 7,
86 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MAX_EDR] = 15,
87 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_MASTER_EDR] = 15,
88 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MIN_EDR] = 8,
89 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MAX_EDR] = 20,
90 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_SLAVE_EDR] = 15,
91 [CONF_SG_WLAN_ACTIVE_BT_ACL_MIN_BR] = 20,
92 [CONF_SG_WLAN_ACTIVE_BT_ACL_MAX_BR] = 50,
93 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_BR] = 10,
94 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
95 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP] = 800,
96 [CONF_SG_PASSIVE_SCAN_A2DP_BT_TIME] = 75,
97 [CONF_SG_PASSIVE_SCAN_A2DP_WLAN_TIME] = 15,
98 [CONF_SG_HV3_MAX_SERVED] = 6,
99 [CONF_SG_DHCP_TIME] = 5000,
100 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
102 .state = CONF_SG_PROTECTIVE,
105 .rx_msdu_life_time = 512000,
106 .packet_detection_threshold = 0,
107 .ps_poll_timeout = 15,
109 .rts_threshold = 2347,
110 .rx_cca_threshold = 0,
111 .irq_blk_threshold = 0xFFFF,
112 .irq_pkt_threshold = 0,
114 .queue_type = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
117 .tx_energy_detection = 0,
119 .enabled_rates = CONF_HW_BIT_RATE_1MBPS |
120 CONF_HW_BIT_RATE_2MBPS,
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
220 .wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
221 .listen_interval = 0,
222 .bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
223 .bcn_filt_ie_count = 1,
226 .ie = WLAN_EID_CHANNEL_SWITCH,
227 .rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
230 .synch_fail_thold = 10,
231 .bss_lose_timeout = 100,
232 .beacon_rx_timeout = 10000,
233 .broadcast_timeout = 20000,
234 .rx_broadcast_in_ps = 1,
235 .ps_poll_threshold = 20,
236 .sig_trigger_count = 2,
241 .metric = CONF_TRIG_METRIC_RSSI_BEACON,
242 .type = CONF_TRIG_EVENT_TYPE_EDGE,
243 .direction = CONF_TRIG_EVENT_DIR_LOW,
251 .metric = CONF_TRIG_METRIC_RSSI_BEACON,
252 .type = CONF_TRIG_EVENT_TYPE_EDGE,
253 .direction = CONF_TRIG_EVENT_DIR_HIGH,
260 .rssi_bcn_avg_weight = 10,
261 .rssi_pkt_avg_weight = 10,
262 .snr_bcn_avg_weight = 10,
263 .snr_pkt_avg_weight = 10
265 .bet_enable = CONF_BET_MODE_ENABLE,
266 .bet_max_consecutive = 10,
267 .psm_entry_retries = 3
279 .host_clk_settling_time = 5000,
280 .host_fast_wakeup_support = false
284 static void wl1271_device_release(struct device *dev)
289 static struct platform_device wl1271_device = {
293 /* device model insists to have a release function */
295 .release = wl1271_device_release,
299 static LIST_HEAD(wl_list);
301 static void wl1271_conf_init(struct wl1271 *wl)
305 * This function applies the default configuration to the driver. This
306 * function is invoked upon driver load (spi probe.)
308 * The configuration is stored in a run-time structure in order to
309 * facilitate for run-time adjustment of any of the parameters. Making
310 * changes to the configuration structure will apply the new values on
311 * the next interface up (wl1271_op_start.)
314 /* apply driver default configuration */
315 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
319 static int wl1271_plt_init(struct wl1271 *wl)
321 struct conf_tx_ac_category *conf_ac;
322 struct conf_tx_tid *conf_tid;
325 ret = wl1271_cmd_general_parms(wl);
329 ret = wl1271_cmd_radio_parms(wl);
333 ret = wl1271_init_templates_config(wl);
337 ret = wl1271_acx_init_mem_config(wl);
341 /* PHY layer config */
342 ret = wl1271_init_phy_config(wl);
344 goto out_free_memmap;
346 ret = wl1271_acx_dco_itrim_params(wl);
348 goto out_free_memmap;
350 /* Initialize connection monitoring thresholds */
351 ret = wl1271_acx_conn_monit_params(wl);
353 goto out_free_memmap;
355 /* Bluetooth WLAN coexistence */
356 ret = wl1271_init_pta(wl);
358 goto out_free_memmap;
360 /* Energy detection */
361 ret = wl1271_init_energy_detection(wl);
363 goto out_free_memmap;
365 /* Default fragmentation threshold */
366 ret = wl1271_acx_frag_threshold(wl);
368 goto out_free_memmap;
370 /* Default TID configuration */
371 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
372 conf_tid = &wl->conf.tx.tid_conf[i];
373 ret = wl1271_acx_tid_cfg(wl, conf_tid->queue_id,
374 conf_tid->channel_type,
377 conf_tid->ack_policy,
378 conf_tid->apsd_conf[0],
379 conf_tid->apsd_conf[1]);
381 goto out_free_memmap;
384 /* Default AC configuration */
385 for (i = 0; i < wl->conf.tx.ac_conf_count; i++) {
386 conf_ac = &wl->conf.tx.ac_conf[i];
387 ret = wl1271_acx_ac_cfg(wl, conf_ac->ac, conf_ac->cw_min,
388 conf_ac->cw_max, conf_ac->aifsn,
389 conf_ac->tx_op_limit);
391 goto out_free_memmap;
394 /* Enable data path */
395 ret = wl1271_cmd_data_path(wl, 1);
397 goto out_free_memmap;
399 /* Configure for CAM power saving (ie. always active) */
400 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
402 goto out_free_memmap;
405 ret = wl1271_acx_pm_config(wl);
407 goto out_free_memmap;
412 kfree(wl->target_mem_map);
413 wl->target_mem_map = NULL;
418 static void wl1271_fw_status(struct wl1271 *wl,
419 struct wl1271_fw_status *status)
425 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
427 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
428 "drv_rx_counter = %d, tx_results_counter = %d)",
430 status->fw_rx_counter,
431 status->drv_rx_counter,
432 status->tx_results_counter);
434 /* update number of available TX blocks */
435 for (i = 0; i < NUM_TX_QUEUES; i++) {
436 u32 cnt = le32_to_cpu(status->tx_released_blks[i]) -
437 wl->tx_blocks_freed[i];
439 wl->tx_blocks_freed[i] =
440 le32_to_cpu(status->tx_released_blks[i]);
441 wl->tx_blocks_available += cnt;
445 /* if more blocks are available now, schedule some tx work */
446 if (total && !skb_queue_empty(&wl->tx_queue))
447 ieee80211_queue_work(wl->hw, &wl->tx_work);
449 /* update the host-chipset time offset */
451 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
452 (s64)le32_to_cpu(status->fw_localtime);
455 #define WL1271_IRQ_MAX_LOOPS 10
457 static void wl1271_irq_work(struct work_struct *work)
461 int loopcount = WL1271_IRQ_MAX_LOOPS;
464 container_of(work, struct wl1271, irq_work);
466 mutex_lock(&wl->mutex);
468 wl1271_debug(DEBUG_IRQ, "IRQ work");
470 if (unlikely(wl->state == WL1271_STATE_OFF))
473 ret = wl1271_ps_elp_wakeup(wl, true);
477 spin_lock_irqsave(&wl->wl_lock, flags);
478 while (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags) && loopcount) {
479 clear_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags);
480 spin_unlock_irqrestore(&wl->wl_lock, flags);
483 wl1271_fw_status(wl, wl->fw_status);
484 intr = le32_to_cpu(wl->fw_status->intr);
486 wl1271_debug(DEBUG_IRQ, "Zero interrupt received.");
490 intr &= WL1271_INTR_MASK;
492 if (intr & WL1271_ACX_INTR_DATA) {
493 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
495 /* check for tx results */
496 if (wl->fw_status->tx_results_counter !=
497 (wl->tx_results_count & 0xff))
498 wl1271_tx_complete(wl);
500 wl1271_rx(wl, wl->fw_status);
503 if (intr & WL1271_ACX_INTR_EVENT_A) {
504 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
505 wl1271_event_handle(wl, 0);
508 if (intr & WL1271_ACX_INTR_EVENT_B) {
509 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
510 wl1271_event_handle(wl, 1);
513 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
514 wl1271_debug(DEBUG_IRQ,
515 "WL1271_ACX_INTR_INIT_COMPLETE");
517 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
518 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
520 spin_lock_irqsave(&wl->wl_lock, flags);
523 if (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags))
524 ieee80211_queue_work(wl->hw, &wl->irq_work);
526 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
527 spin_unlock_irqrestore(&wl->wl_lock, flags);
529 wl1271_ps_elp_sleep(wl);
532 mutex_unlock(&wl->mutex);
535 static int wl1271_fetch_firmware(struct wl1271 *wl)
537 const struct firmware *fw;
540 ret = request_firmware(&fw, WL1271_FW_NAME, wl1271_wl_to_dev(wl));
543 wl1271_error("could not get firmware: %d", ret);
548 wl1271_error("firmware size is not multiple of 32 bits: %zu",
554 wl->fw_len = fw->size;
555 wl->fw = vmalloc(wl->fw_len);
558 wl1271_error("could not allocate memory for the firmware");
563 memcpy(wl->fw, fw->data, wl->fw_len);
568 release_firmware(fw);
573 static int wl1271_fetch_nvs(struct wl1271 *wl)
575 const struct firmware *fw;
578 ret = request_firmware(&fw, WL1271_NVS_NAME, wl1271_wl_to_dev(wl));
581 wl1271_error("could not get nvs file: %d", ret);
585 if (fw->size != sizeof(struct wl1271_nvs_file)) {
586 wl1271_error("nvs size is not as expected: %zu != %zu",
587 fw->size, sizeof(struct wl1271_nvs_file));
592 wl->nvs = kmalloc(sizeof(struct wl1271_nvs_file), GFP_KERNEL);
595 wl1271_error("could not allocate memory for the nvs file");
600 memcpy(wl->nvs, fw->data, sizeof(struct wl1271_nvs_file));
603 release_firmware(fw);
608 static void wl1271_fw_wakeup(struct wl1271 *wl)
612 elp_reg = ELPCTRL_WAKE_UP;
613 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
616 static int wl1271_setup(struct wl1271 *wl)
618 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
622 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
623 if (!wl->tx_res_if) {
624 kfree(wl->fw_status);
628 INIT_WORK(&wl->irq_work, wl1271_irq_work);
629 INIT_WORK(&wl->tx_work, wl1271_tx_work);
633 static int wl1271_chip_wakeup(struct wl1271 *wl)
635 struct wl1271_partition_set partition;
638 msleep(WL1271_PRE_POWER_ON_SLEEP);
640 msleep(WL1271_POWER_ON_SLEEP);
644 /* We don't need a real memory partition here, because we only want
645 * to use the registers at this point. */
646 memset(&partition, 0, sizeof(partition));
647 partition.reg.start = REGISTERS_BASE;
648 partition.reg.size = REGISTERS_DOWN_SIZE;
649 wl1271_set_partition(wl, &partition);
651 /* ELP module wake up */
652 wl1271_fw_wakeup(wl);
654 /* whal_FwCtrl_BootSm() */
656 /* 0. read chip id from CHIP_ID */
657 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
659 /* 1. check if chip id is valid */
661 switch (wl->chip.id) {
662 case CHIP_ID_1271_PG10:
663 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
666 ret = wl1271_setup(wl);
670 case CHIP_ID_1271_PG20:
671 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
674 ret = wl1271_setup(wl);
679 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
684 if (wl->fw == NULL) {
685 ret = wl1271_fetch_firmware(wl);
690 /* No NVS from netlink, try to get it from the filesystem */
691 if (wl->nvs == NULL) {
692 ret = wl1271_fetch_nvs(wl);
701 int wl1271_plt_start(struct wl1271 *wl)
703 int retries = WL1271_BOOT_RETRIES;
706 mutex_lock(&wl->mutex);
708 wl1271_notice("power up");
710 if (wl->state != WL1271_STATE_OFF) {
711 wl1271_error("cannot go into PLT state because not "
712 "in off state: %d", wl->state);
719 ret = wl1271_chip_wakeup(wl);
723 ret = wl1271_boot(wl);
727 ret = wl1271_plt_init(wl);
731 wl->state = WL1271_STATE_PLT;
732 wl1271_notice("firmware booted in PLT mode (%s)",
737 wl1271_disable_interrupts(wl);
738 mutex_unlock(&wl->mutex);
739 /* Unlocking the mutex in the middle of handling is
740 inherently unsafe. In this case we deem it safe to do,
741 because we need to let any possibly pending IRQ out of
742 the system (and while we are WL1271_STATE_OFF the IRQ
743 work function will not do anything.) Also, any other
744 possible concurrent operations will fail due to the
745 current state, hence the wl1271 struct should be safe. */
746 cancel_work_sync(&wl->irq_work);
747 mutex_lock(&wl->mutex);
749 wl1271_power_off(wl);
752 wl1271_error("firmware boot in PLT mode failed despite %d retries",
753 WL1271_BOOT_RETRIES);
755 mutex_unlock(&wl->mutex);
760 int wl1271_plt_stop(struct wl1271 *wl)
764 mutex_lock(&wl->mutex);
766 wl1271_notice("power down");
768 if (wl->state != WL1271_STATE_PLT) {
769 wl1271_error("cannot power down because not in PLT "
770 "state: %d", wl->state);
775 wl1271_disable_interrupts(wl);
776 wl1271_power_off(wl);
778 wl->state = WL1271_STATE_OFF;
782 mutex_unlock(&wl->mutex);
788 static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
790 struct wl1271 *wl = hw->priv;
791 struct ieee80211_conf *conf = &hw->conf;
792 struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
793 struct ieee80211_sta *sta = txinfo->control.sta;
796 /* peek into the rates configured in the STA entry */
797 spin_lock_irqsave(&wl->wl_lock, flags);
798 if (sta && sta->supp_rates[conf->channel->band] != wl->sta_rate_set) {
799 wl->sta_rate_set = sta->supp_rates[conf->channel->band];
800 set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
802 spin_unlock_irqrestore(&wl->wl_lock, flags);
804 /* queue the packet */
805 skb_queue_tail(&wl->tx_queue, skb);
808 * The chip specific setup must run before the first TX packet -
809 * before that, the tx_work will not be initialized!
812 ieee80211_queue_work(wl->hw, &wl->tx_work);
815 * The workqueue is slow to process the tx_queue and we need stop
816 * the queue here, otherwise the queue will get too long.
818 if (skb_queue_len(&wl->tx_queue) >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
819 wl1271_debug(DEBUG_TX, "op_tx: stopping queues");
821 spin_lock_irqsave(&wl->wl_lock, flags);
822 ieee80211_stop_queues(wl->hw);
823 set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags);
824 spin_unlock_irqrestore(&wl->wl_lock, flags);
830 static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
833 struct net_device *dev;
834 struct wireless_dev *wdev;
836 struct ieee80211_hw *hw;
838 struct wl1271 *wl_temp;
839 struct in_device *idev;
840 struct in_ifaddr *ifa = arg;
843 /* FIXME: this ugly function should probably be implemented in the
844 * mac80211, and here should only be a simple callback handling actual
845 * setting of the filters. Now we need to dig up references to
846 * various structures to gain access to what we need.
847 * Also, because of this, there is no "initial" setting of the filter
848 * in "op_start", because we don't want to dig up struct net_device
849 * there - the filter will be set upon first change of the interface
852 dev = ifa->ifa_dev->dev;
854 wdev = dev->ieee80211_ptr;
862 hw = wiphy_priv(wiphy);
866 /* Check that the interface is one supported by this driver. */
868 list_for_each_entry(wl, &wl_list, list) {
875 /* Get the interface IP address for the device. "ifa" will become
877 - there is no IPV4 protocol address configured
878 - there are multiple (virtual) IPV4 addresses configured
879 When "ifa" is NULL, filtering will be disabled.
884 ifa = idev->ifa_list;
886 if (ifa && ifa->ifa_next)
889 mutex_lock(&wl->mutex);
891 if (wl->state == WL1271_STATE_OFF)
894 ret = wl1271_ps_elp_wakeup(wl, false);
898 ret = wl1271_acx_arp_ip_filter(wl, true,
899 (u8 *)&ifa->ifa_address,
902 ret = wl1271_acx_arp_ip_filter(wl, false, NULL,
904 wl1271_ps_elp_sleep(wl);
907 mutex_unlock(&wl->mutex);
912 static struct notifier_block wl1271_dev_notifier = {
913 .notifier_call = wl1271_dev_notify,
917 static int wl1271_op_start(struct ieee80211_hw *hw)
919 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
922 * We have to delay the booting of the hardware because
923 * we need to know the local MAC address before downloading and
924 * initializing the firmware. The MAC address cannot be changed
925 * after boot, and without the proper MAC address, the firmware
926 * will not function properly.
928 * The MAC address is first known when the corresponding interface
929 * is added. That is where we will initialize the hardware.
935 static void wl1271_op_stop(struct ieee80211_hw *hw)
937 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
940 static int wl1271_op_add_interface(struct ieee80211_hw *hw,
941 struct ieee80211_vif *vif)
943 struct wl1271 *wl = hw->priv;
944 int retries = WL1271_BOOT_RETRIES;
947 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
948 vif->type, vif->addr);
950 mutex_lock(&wl->mutex);
959 case NL80211_IFTYPE_STATION:
960 wl->bss_type = BSS_TYPE_STA_BSS;
962 case NL80211_IFTYPE_ADHOC:
963 wl->bss_type = BSS_TYPE_IBSS;
970 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
972 if (wl->state != WL1271_STATE_OFF) {
973 wl1271_error("cannot start because not in off state: %d",
981 ret = wl1271_chip_wakeup(wl);
985 ret = wl1271_boot(wl);
989 ret = wl1271_hw_init(wl);
993 wl->state = WL1271_STATE_ON;
994 wl1271_info("firmware booted (%s)", wl->chip.fw_ver);
998 wl1271_disable_interrupts(wl);
999 mutex_unlock(&wl->mutex);
1000 /* Unlocking the mutex in the middle of handling is
1001 inherently unsafe. In this case we deem it safe to do,
1002 because we need to let any possibly pending IRQ out of
1003 the system (and while we are WL1271_STATE_OFF the IRQ
1004 work function will not do anything.) Also, any other
1005 possible concurrent operations will fail due to the
1006 current state, hence the wl1271 struct should be safe. */
1007 cancel_work_sync(&wl->irq_work);
1008 mutex_lock(&wl->mutex);
1010 wl1271_power_off(wl);
1013 wl1271_error("firmware boot failed despite %d retries",
1014 WL1271_BOOT_RETRIES);
1016 mutex_unlock(&wl->mutex);
1019 list_add(&wl->list, &wl_list);
1020 register_inetaddr_notifier(&wl1271_dev_notifier);
1026 static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
1027 struct ieee80211_vif *vif)
1029 struct wl1271 *wl = hw->priv;
1032 unregister_inetaddr_notifier(&wl1271_dev_notifier);
1034 mutex_lock(&wl->mutex);
1035 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
1037 wl1271_info("down");
1039 list_del(&wl->list);
1041 WARN_ON(wl->state != WL1271_STATE_ON);
1043 if (test_and_clear_bit(WL1271_FLAG_SCANNING, &wl->flags)) {
1044 mutex_unlock(&wl->mutex);
1045 ieee80211_scan_completed(wl->hw, true);
1046 mutex_lock(&wl->mutex);
1049 wl->state = WL1271_STATE_OFF;
1051 wl1271_disable_interrupts(wl);
1053 mutex_unlock(&wl->mutex);
1055 cancel_work_sync(&wl->irq_work);
1056 cancel_work_sync(&wl->tx_work);
1058 mutex_lock(&wl->mutex);
1060 /* let's notify MAC80211 about the remaining pending TX frames */
1061 wl1271_tx_flush(wl);
1062 wl1271_power_off(wl);
1064 memset(wl->bssid, 0, ETH_ALEN);
1065 memset(wl->ssid, 0, IW_ESSID_MAX_SIZE + 1);
1067 wl->bss_type = MAX_BSS_TYPE;
1068 wl->band = IEEE80211_BAND_2GHZ;
1071 wl->psm_entry_retry = 0;
1072 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
1073 wl->tx_blocks_available = 0;
1074 wl->tx_results_count = 0;
1075 wl->tx_packets_count = 0;
1076 wl->tx_security_last_seq = 0;
1077 wl->tx_security_seq = 0;
1078 wl->time_offset = 0;
1079 wl->session_counter = 0;
1080 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
1081 wl->sta_rate_set = 0;
1086 for (i = 0; i < NUM_TX_QUEUES; i++)
1087 wl->tx_blocks_freed[i] = 0;
1089 wl1271_debugfs_reset(wl);
1090 mutex_unlock(&wl->mutex);
1093 static void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters)
1095 wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
1096 wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
1098 /* combine requested filters with current filter config */
1099 filters = wl->filters | filters;
1101 wl1271_debug(DEBUG_FILTERS, "RX filters set: ");
1103 if (filters & FIF_PROMISC_IN_BSS) {
1104 wl1271_debug(DEBUG_FILTERS, " - FIF_PROMISC_IN_BSS");
1105 wl->rx_config &= ~CFG_UNI_FILTER_EN;
1106 wl->rx_config |= CFG_BSSID_FILTER_EN;
1108 if (filters & FIF_BCN_PRBRESP_PROMISC) {
1109 wl1271_debug(DEBUG_FILTERS, " - FIF_BCN_PRBRESP_PROMISC");
1110 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
1111 wl->rx_config &= ~CFG_SSID_FILTER_EN;
1113 if (filters & FIF_OTHER_BSS) {
1114 wl1271_debug(DEBUG_FILTERS, " - FIF_OTHER_BSS");
1115 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
1117 if (filters & FIF_CONTROL) {
1118 wl1271_debug(DEBUG_FILTERS, " - FIF_CONTROL");
1119 wl->rx_filter |= CFG_RX_CTL_EN;
1121 if (filters & FIF_FCSFAIL) {
1122 wl1271_debug(DEBUG_FILTERS, " - FIF_FCSFAIL");
1123 wl->rx_filter |= CFG_RX_FCS_ERROR;
1127 static int wl1271_join_channel(struct wl1271 *wl, int channel)
1130 /* we need to use a dummy BSSID for now */
1131 static const u8 dummy_bssid[ETH_ALEN] = { 0x0b, 0xad, 0xde,
1134 wl->channel = channel;
1135 memcpy(wl->bssid, dummy_bssid, ETH_ALEN);
1137 /* pass through frames from all BSS */
1138 wl1271_configure_filters(wl, FIF_OTHER_BSS);
1140 /* the dummy join is performed always with STATION BSS type to allow
1141 also ad-hoc mode to listen to the surroundings without sending any
1143 ret = wl1271_cmd_join(wl, BSS_TYPE_STA_BSS);
1147 set_bit(WL1271_FLAG_JOINED, &wl->flags);
1153 static int wl1271_unjoin_channel(struct wl1271 *wl)
1157 /* to stop listening to a channel, we disconnect */
1158 ret = wl1271_cmd_disconnect(wl);
1162 clear_bit(WL1271_FLAG_JOINED, &wl->flags);
1164 memset(wl->bssid, 0, ETH_ALEN);
1166 /* stop filterting packets based on bssid */
1167 wl1271_configure_filters(wl, FIF_OTHER_BSS);
1173 static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
1175 struct wl1271 *wl = hw->priv;
1176 struct ieee80211_conf *conf = &hw->conf;
1177 int channel, ret = 0;
1179 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
1181 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s",
1183 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
1185 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use");
1187 mutex_lock(&wl->mutex);
1189 wl->band = conf->channel->band;
1191 ret = wl1271_ps_elp_wakeup(wl, false);
1195 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1196 if (conf->flags & IEEE80211_CONF_IDLE &&
1197 test_bit(WL1271_FLAG_JOINED, &wl->flags))
1198 wl1271_unjoin_channel(wl);
1199 else if (!(conf->flags & IEEE80211_CONF_IDLE))
1200 wl1271_join_channel(wl, channel);
1202 if (conf->flags & IEEE80211_CONF_IDLE) {
1203 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
1204 wl->sta_rate_set = 0;
1205 wl1271_acx_rate_policies(wl);
1209 /* if the channel changes while joined, join again */
1210 if (channel != wl->channel &&
1211 test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
1212 wl->channel = channel;
1213 /* FIXME: maybe use CMD_CHANNEL_SWITCH for this? */
1214 ret = wl1271_cmd_join(wl, wl->bss_type);
1216 wl1271_warning("cmd join to update channel failed %d",
1219 wl->channel = channel;
1221 if (conf->flags & IEEE80211_CONF_PS &&
1222 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
1223 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
1226 * We enter PSM only if we're already associated.
1227 * If we're not, we'll enter it when joining an SSID,
1228 * through the bss_info_changed() hook.
1230 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
1231 wl1271_debug(DEBUG_PSM, "psm enabled");
1232 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
1235 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
1236 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
1237 wl1271_debug(DEBUG_PSM, "psm disabled");
1239 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
1241 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
1242 ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
1246 if (conf->power_level != wl->power_level) {
1247 ret = wl1271_acx_tx_power(wl, conf->power_level);
1251 wl->power_level = conf->power_level;
1255 wl1271_ps_elp_sleep(wl);
1258 mutex_unlock(&wl->mutex);
1263 struct wl1271_filter_params {
1266 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
1269 static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw, int mc_count,
1270 struct dev_addr_list *mc_list)
1272 struct wl1271_filter_params *fp;
1275 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
1277 wl1271_error("Out of memory setting filters.");
1281 /* update multicast filtering parameters */
1283 if (mc_count > ACX_MC_ADDRESS_GROUP_MAX) {
1285 fp->enabled = false;
1288 fp->mc_list_length = 0;
1289 for (i = 0; i < mc_count; i++) {
1290 if (mc_list->da_addrlen == ETH_ALEN) {
1291 memcpy(fp->mc_list[fp->mc_list_length],
1292 mc_list->da_addr, ETH_ALEN);
1293 fp->mc_list_length++;
1295 wl1271_warning("Unknown mc address length.");
1296 mc_list = mc_list->next;
1299 return (u64)(unsigned long)fp;
1302 #define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
1305 FIF_BCN_PRBRESP_PROMISC | \
1309 static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
1310 unsigned int changed,
1311 unsigned int *total, u64 multicast)
1313 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
1314 struct wl1271 *wl = hw->priv;
1317 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter");
1319 mutex_lock(&wl->mutex);
1321 if (wl->state == WL1271_STATE_OFF)
1324 ret = wl1271_ps_elp_wakeup(wl, false);
1328 *total &= WL1271_SUPPORTED_FILTERS;
1329 changed &= WL1271_SUPPORTED_FILTERS;
1331 if (*total & FIF_ALLMULTI)
1332 ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
1334 ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
1336 fp->mc_list_length);
1340 /* determine, whether supported filter values have changed */
1344 /* configure filters */
1345 wl->filters = *total;
1346 wl1271_configure_filters(wl, 0);
1348 /* apply configured filters */
1349 ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
1354 wl1271_ps_elp_sleep(wl);
1357 mutex_unlock(&wl->mutex);
1361 static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1362 struct ieee80211_vif *vif,
1363 struct ieee80211_sta *sta,
1364 struct ieee80211_key_conf *key_conf)
1366 struct wl1271 *wl = hw->priv;
1373 static const u8 bcast_addr[ETH_ALEN] =
1374 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1376 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
1378 addr = sta ? sta->addr : bcast_addr;
1380 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
1381 wl1271_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
1382 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
1383 key_conf->alg, key_conf->keyidx,
1384 key_conf->keylen, key_conf->flags);
1385 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
1387 if (is_zero_ether_addr(addr)) {
1388 /* We dont support TX only encryption */
1393 mutex_lock(&wl->mutex);
1395 ret = wl1271_ps_elp_wakeup(wl, false);
1399 switch (key_conf->alg) {
1403 key_conf->hw_key_idx = key_conf->keyidx;
1406 key_type = KEY_TKIP;
1408 key_conf->hw_key_idx = key_conf->keyidx;
1409 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
1410 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
1415 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1416 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
1417 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
1420 wl1271_error("Unknown key algo 0x%x", key_conf->alg);
1428 ret = wl1271_cmd_set_key(wl, KEY_ADD_OR_REPLACE,
1429 key_conf->keyidx, key_type,
1430 key_conf->keylen, key_conf->key,
1431 addr, tx_seq_32, tx_seq_16);
1433 wl1271_error("Could not add or replace key");
1437 /* the default WEP key needs to be configured at least once */
1438 if (key_type == KEY_WEP) {
1439 ret = wl1271_cmd_set_default_wep_key(wl,
1447 /* The wl1271 does not allow to remove unicast keys - they
1448 will be cleared automatically on next CMD_JOIN. Ignore the
1449 request silently, as we dont want the mac80211 to emit
1450 an error message. */
1451 if (!is_broadcast_ether_addr(addr))
1454 ret = wl1271_cmd_set_key(wl, KEY_REMOVE,
1455 key_conf->keyidx, key_type,
1456 key_conf->keylen, key_conf->key,
1459 wl1271_error("Could not remove key");
1465 wl1271_error("Unsupported key cmd 0x%x", cmd);
1473 wl1271_ps_elp_sleep(wl);
1476 mutex_unlock(&wl->mutex);
1482 static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
1483 struct cfg80211_scan_request *req)
1485 struct wl1271 *wl = hw->priv;
1490 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
1493 ssid = req->ssids[0].ssid;
1494 len = req->ssids[0].ssid_len;
1497 mutex_lock(&wl->mutex);
1499 ret = wl1271_ps_elp_wakeup(wl, false);
1503 if (wl1271_11a_enabled())
1504 ret = wl1271_cmd_scan(hw->priv, ssid, len,
1505 req->ie, req->ie_len, 1, 0,
1506 WL1271_SCAN_BAND_DUAL, 3);
1508 ret = wl1271_cmd_scan(hw->priv, ssid, len,
1509 req->ie, req->ie_len, 1, 0,
1510 WL1271_SCAN_BAND_2_4_GHZ, 3);
1512 wl1271_ps_elp_sleep(wl);
1515 mutex_unlock(&wl->mutex);
1520 static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1522 struct wl1271 *wl = hw->priv;
1525 mutex_lock(&wl->mutex);
1527 ret = wl1271_ps_elp_wakeup(wl, false);
1531 ret = wl1271_acx_rts_threshold(wl, (u16) value);
1533 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
1535 wl1271_ps_elp_sleep(wl);
1538 mutex_unlock(&wl->mutex);
1543 static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *beacon)
1545 u8 *ptr = beacon->data +
1546 offsetof(struct ieee80211_mgmt, u.beacon.variable);
1548 /* find the location of the ssid in the beacon */
1549 while (ptr < beacon->data + beacon->len) {
1550 if (ptr[0] == WLAN_EID_SSID) {
1551 wl->ssid_len = ptr[1];
1552 memcpy(wl->ssid, ptr+2, wl->ssid_len);
1557 wl1271_error("ad-hoc beacon template has no SSID!\n");
1560 static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
1561 struct ieee80211_vif *vif,
1562 struct ieee80211_bss_conf *bss_conf,
1565 enum wl1271_cmd_ps_mode mode;
1566 struct wl1271 *wl = hw->priv;
1567 bool do_join = false;
1570 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed");
1572 mutex_lock(&wl->mutex);
1574 ret = wl1271_ps_elp_wakeup(wl, false);
1578 if (wl->bss_type == BSS_TYPE_IBSS) {
1579 /* FIXME: This implements rudimentary ad-hoc support -
1580 proper templates are on the wish list and notification
1581 on when they change. This patch will update the templates
1582 on every call to this function. */
1583 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
1586 struct ieee80211_hdr *hdr;
1588 wl1271_ssid_set(wl, beacon);
1589 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON,
1594 dev_kfree_skb(beacon);
1598 hdr = (struct ieee80211_hdr *) beacon->data;
1599 hdr->frame_control = cpu_to_le16(
1600 IEEE80211_FTYPE_MGMT |
1601 IEEE80211_STYPE_PROBE_RESP);
1603 ret = wl1271_cmd_template_set(wl,
1604 CMD_TEMPL_PROBE_RESPONSE,
1607 dev_kfree_skb(beacon);
1611 /* Need to update the SSID (for filtering etc) */
1616 if ((changed & BSS_CHANGED_BSSID) &&
1618 * Now we know the correct bssid, so we send a new join command
1619 * and enable the BSSID filter
1621 memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
1622 memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
1624 ret = wl1271_cmd_build_null_data(wl);
1628 /* filter out all packets not from this BSSID */
1629 wl1271_configure_filters(wl, 0);
1631 /* Need to update the BSSID (for filtering etc) */
1635 if (changed & BSS_CHANGED_ASSOC) {
1636 if (bss_conf->assoc) {
1637 wl->aid = bss_conf->aid;
1638 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
1641 * with wl1271, we don't need to update the
1642 * beacon_int and dtim_period, because the firmware
1643 * updates it by itself when the first beacon is
1644 * received after a join.
1646 ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
1650 ret = wl1271_acx_aid(wl, wl->aid);
1654 /* If we want to go in PSM but we're not there yet */
1655 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
1656 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1657 mode = STATION_POWER_SAVE_MODE;
1658 ret = wl1271_ps_set_mode(wl, mode, true);
1663 /* use defaults when not associated */
1664 clear_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
1670 if (changed & BSS_CHANGED_ERP_SLOT) {
1671 if (bss_conf->use_short_slot)
1672 ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
1674 ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
1676 wl1271_warning("Set slot time failed %d", ret);
1681 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1682 if (bss_conf->use_short_preamble)
1683 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
1685 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
1688 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1689 if (bss_conf->use_cts_prot)
1690 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
1692 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
1694 wl1271_warning("Set ctsprotect failed %d", ret);
1700 ret = wl1271_cmd_join(wl, wl->bss_type);
1702 wl1271_warning("cmd join failed %d", ret);
1705 set_bit(WL1271_FLAG_JOINED, &wl->flags);
1709 wl1271_ps_elp_sleep(wl);
1712 mutex_unlock(&wl->mutex);
1715 static int wl1271_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
1716 const struct ieee80211_tx_queue_params *params)
1718 struct wl1271 *wl = hw->priv;
1722 mutex_lock(&wl->mutex);
1724 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
1726 ret = wl1271_ps_elp_wakeup(wl, false);
1730 /* the txop is confed in units of 32us by the mac80211, we need us */
1731 ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
1732 params->cw_min, params->cw_max,
1733 params->aifs, params->txop << 5);
1738 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
1740 ps_scheme = CONF_PS_SCHEME_LEGACY;
1742 ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
1743 CONF_CHANNEL_TYPE_EDCF,
1744 wl1271_tx_get_queue(queue),
1745 ps_scheme, CONF_ACK_POLICY_LEGACY, 0, 0);
1750 wl1271_ps_elp_sleep(wl);
1753 mutex_unlock(&wl->mutex);
1759 /* can't be const, mac80211 writes to this */
1760 static struct ieee80211_rate wl1271_rates[] = {
1762 .hw_value = CONF_HW_BIT_RATE_1MBPS,
1763 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
1765 .hw_value = CONF_HW_BIT_RATE_2MBPS,
1766 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
1767 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1769 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
1770 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
1771 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1773 .hw_value = CONF_HW_BIT_RATE_11MBPS,
1774 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
1775 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1777 .hw_value = CONF_HW_BIT_RATE_6MBPS,
1778 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
1780 .hw_value = CONF_HW_BIT_RATE_9MBPS,
1781 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
1783 .hw_value = CONF_HW_BIT_RATE_12MBPS,
1784 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
1786 .hw_value = CONF_HW_BIT_RATE_18MBPS,
1787 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
1789 .hw_value = CONF_HW_BIT_RATE_24MBPS,
1790 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
1792 .hw_value = CONF_HW_BIT_RATE_36MBPS,
1793 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
1795 .hw_value = CONF_HW_BIT_RATE_48MBPS,
1796 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
1798 .hw_value = CONF_HW_BIT_RATE_54MBPS,
1799 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
1802 /* can't be const, mac80211 writes to this */
1803 static struct ieee80211_channel wl1271_channels[] = {
1804 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
1805 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
1806 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
1807 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
1808 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
1809 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
1810 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
1811 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
1812 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
1813 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
1814 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
1815 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
1816 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
1819 /* mapping to indexes for wl1271_rates */
1820 const static u8 wl1271_rate_to_idx_2ghz[] = {
1821 /* MCS rates are used only with 11n */
1822 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */
1823 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */
1824 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */
1825 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */
1826 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */
1827 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */
1828 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */
1829 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS0 */
1831 11, /* CONF_HW_RXTX_RATE_54 */
1832 10, /* CONF_HW_RXTX_RATE_48 */
1833 9, /* CONF_HW_RXTX_RATE_36 */
1834 8, /* CONF_HW_RXTX_RATE_24 */
1836 /* TI-specific rate */
1837 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
1839 7, /* CONF_HW_RXTX_RATE_18 */
1840 6, /* CONF_HW_RXTX_RATE_12 */
1841 3, /* CONF_HW_RXTX_RATE_11 */
1842 5, /* CONF_HW_RXTX_RATE_9 */
1843 4, /* CONF_HW_RXTX_RATE_6 */
1844 2, /* CONF_HW_RXTX_RATE_5_5 */
1845 1, /* CONF_HW_RXTX_RATE_2 */
1846 0 /* CONF_HW_RXTX_RATE_1 */
1849 /* can't be const, mac80211 writes to this */
1850 static struct ieee80211_supported_band wl1271_band_2ghz = {
1851 .channels = wl1271_channels,
1852 .n_channels = ARRAY_SIZE(wl1271_channels),
1853 .bitrates = wl1271_rates,
1854 .n_bitrates = ARRAY_SIZE(wl1271_rates),
1857 /* 5 GHz data rates for WL1273 */
1858 static struct ieee80211_rate wl1271_rates_5ghz[] = {
1860 .hw_value = CONF_HW_BIT_RATE_6MBPS,
1861 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
1863 .hw_value = CONF_HW_BIT_RATE_9MBPS,
1864 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
1866 .hw_value = CONF_HW_BIT_RATE_12MBPS,
1867 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
1869 .hw_value = CONF_HW_BIT_RATE_18MBPS,
1870 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
1872 .hw_value = CONF_HW_BIT_RATE_24MBPS,
1873 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
1875 .hw_value = CONF_HW_BIT_RATE_36MBPS,
1876 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
1878 .hw_value = CONF_HW_BIT_RATE_48MBPS,
1879 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
1881 .hw_value = CONF_HW_BIT_RATE_54MBPS,
1882 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
1885 /* 5 GHz band channels for WL1273 */
1886 static struct ieee80211_channel wl1271_channels_5ghz[] = {
1887 { .hw_value = 183, .center_freq = 4915},
1888 { .hw_value = 184, .center_freq = 4920},
1889 { .hw_value = 185, .center_freq = 4925},
1890 { .hw_value = 187, .center_freq = 4935},
1891 { .hw_value = 188, .center_freq = 4940},
1892 { .hw_value = 189, .center_freq = 4945},
1893 { .hw_value = 192, .center_freq = 4960},
1894 { .hw_value = 196, .center_freq = 4980},
1895 { .hw_value = 7, .center_freq = 5035},
1896 { .hw_value = 8, .center_freq = 5040},
1897 { .hw_value = 9, .center_freq = 5045},
1898 { .hw_value = 11, .center_freq = 5055},
1899 { .hw_value = 12, .center_freq = 5060},
1900 { .hw_value = 16, .center_freq = 5080},
1901 { .hw_value = 34, .center_freq = 5170},
1902 { .hw_value = 36, .center_freq = 5180},
1903 { .hw_value = 38, .center_freq = 5190},
1904 { .hw_value = 40, .center_freq = 5200},
1905 { .hw_value = 42, .center_freq = 5210},
1906 { .hw_value = 44, .center_freq = 5220},
1907 { .hw_value = 46, .center_freq = 5230},
1908 { .hw_value = 48, .center_freq = 5240},
1909 { .hw_value = 52, .center_freq = 5260},
1910 { .hw_value = 56, .center_freq = 5280},
1911 { .hw_value = 60, .center_freq = 5300},
1912 { .hw_value = 64, .center_freq = 5320},
1913 { .hw_value = 100, .center_freq = 5500},
1914 { .hw_value = 104, .center_freq = 5520},
1915 { .hw_value = 108, .center_freq = 5540},
1916 { .hw_value = 112, .center_freq = 5560},
1917 { .hw_value = 116, .center_freq = 5580},
1918 { .hw_value = 120, .center_freq = 5600},
1919 { .hw_value = 124, .center_freq = 5620},
1920 { .hw_value = 128, .center_freq = 5640},
1921 { .hw_value = 132, .center_freq = 5660},
1922 { .hw_value = 136, .center_freq = 5680},
1923 { .hw_value = 140, .center_freq = 5700},
1924 { .hw_value = 149, .center_freq = 5745},
1925 { .hw_value = 153, .center_freq = 5765},
1926 { .hw_value = 157, .center_freq = 5785},
1927 { .hw_value = 161, .center_freq = 5805},
1928 { .hw_value = 165, .center_freq = 5825},
1931 /* mapping to indexes for wl1271_rates_5ghz */
1932 const static u8 wl1271_rate_to_idx_5ghz[] = {
1933 /* MCS rates are used only with 11n */
1934 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */
1935 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */
1936 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */
1937 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */
1938 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */
1939 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */
1940 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */
1941 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS0 */
1943 7, /* CONF_HW_RXTX_RATE_54 */
1944 6, /* CONF_HW_RXTX_RATE_48 */
1945 5, /* CONF_HW_RXTX_RATE_36 */
1946 4, /* CONF_HW_RXTX_RATE_24 */
1948 /* TI-specific rate */
1949 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
1951 3, /* CONF_HW_RXTX_RATE_18 */
1952 2, /* CONF_HW_RXTX_RATE_12 */
1953 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
1954 1, /* CONF_HW_RXTX_RATE_9 */
1955 0, /* CONF_HW_RXTX_RATE_6 */
1956 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
1957 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
1958 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
1961 static struct ieee80211_supported_band wl1271_band_5ghz = {
1962 .channels = wl1271_channels_5ghz,
1963 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
1964 .bitrates = wl1271_rates_5ghz,
1965 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
1968 const static u8 *wl1271_band_rate_to_idx[] = {
1969 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
1970 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
1973 static const struct ieee80211_ops wl1271_ops = {
1974 .start = wl1271_op_start,
1975 .stop = wl1271_op_stop,
1976 .add_interface = wl1271_op_add_interface,
1977 .remove_interface = wl1271_op_remove_interface,
1978 .config = wl1271_op_config,
1979 .prepare_multicast = wl1271_op_prepare_multicast,
1980 .configure_filter = wl1271_op_configure_filter,
1982 .set_key = wl1271_op_set_key,
1983 .hw_scan = wl1271_op_hw_scan,
1984 .bss_info_changed = wl1271_op_bss_info_changed,
1985 .set_rts_threshold = wl1271_op_set_rts_threshold,
1986 .conf_tx = wl1271_op_conf_tx,
1987 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
1991 u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate)
1995 BUG_ON(wl->band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
1997 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
1998 wl1271_error("Illegal RX rate from HW: %d", rate);
2002 idx = wl1271_band_rate_to_idx[wl->band][rate];
2003 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
2004 wl1271_error("Unsupported RX rate from HW: %d", rate);
2011 static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
2012 struct device_attribute *attr,
2015 struct wl1271 *wl = dev_get_drvdata(dev);
2018 /* FIXME: what's the maximum length of buf? page size?*/
2021 mutex_lock(&wl->mutex);
2022 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
2024 mutex_unlock(&wl->mutex);
2030 static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
2031 struct device_attribute *attr,
2032 const char *buf, size_t count)
2034 struct wl1271 *wl = dev_get_drvdata(dev);
2038 ret = strict_strtoul(buf, 10, &res);
2041 wl1271_warning("incorrect value written to bt_coex_mode");
2045 mutex_lock(&wl->mutex);
2049 if (res == wl->sg_enabled)
2052 wl->sg_enabled = res;
2054 if (wl->state == WL1271_STATE_OFF)
2057 ret = wl1271_ps_elp_wakeup(wl, false);
2061 wl1271_acx_sg_enable(wl, wl->sg_enabled);
2062 wl1271_ps_elp_sleep(wl);
2065 mutex_unlock(&wl->mutex);
2069 static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
2070 wl1271_sysfs_show_bt_coex_state,
2071 wl1271_sysfs_store_bt_coex_state);
2073 int wl1271_register_hw(struct wl1271 *wl)
2077 if (wl->mac80211_registered)
2080 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
2082 ret = ieee80211_register_hw(wl->hw);
2084 wl1271_error("unable to register mac80211 hw: %d", ret);
2088 wl->mac80211_registered = true;
2090 wl1271_notice("loaded");
2094 EXPORT_SYMBOL_GPL(wl1271_register_hw);
2096 void wl1271_unregister_hw(struct wl1271 *wl)
2098 ieee80211_unregister_hw(wl->hw);
2099 wl->mac80211_registered = false;
2102 EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
2104 int wl1271_init_ieee80211(struct wl1271 *wl)
2106 /* The tx descriptor buffer and the TKIP space. */
2107 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
2108 sizeof(struct wl1271_tx_hw_descr);
2111 /* FIXME: find a proper value */
2112 wl->hw->channel_change_time = 10000;
2114 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
2115 IEEE80211_HW_NOISE_DBM |
2116 IEEE80211_HW_BEACON_FILTER |
2117 IEEE80211_HW_SUPPORTS_PS |
2118 IEEE80211_HW_SUPPORTS_UAPSD |
2119 IEEE80211_HW_HAS_RATE_CONTROL;
2121 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2122 BIT(NL80211_IFTYPE_ADHOC);
2123 wl->hw->wiphy->max_scan_ssids = 1;
2124 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
2126 if (wl1271_11a_enabled())
2127 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
2130 wl->hw->max_rates = 1;
2132 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
2136 EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
2138 #define WL1271_DEFAULT_CHANNEL 0
2140 struct ieee80211_hw *wl1271_alloc_hw(void)
2142 struct ieee80211_hw *hw;
2143 struct platform_device *plat_dev = NULL;
2147 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
2149 wl1271_error("could not alloc ieee80211_hw");
2154 plat_dev = kmalloc(sizeof(wl1271_device), GFP_KERNEL);
2156 wl1271_error("could not allocate platform_device");
2158 goto err_plat_alloc;
2161 memcpy(plat_dev, &wl1271_device, sizeof(wl1271_device));
2164 memset(wl, 0, sizeof(*wl));
2166 INIT_LIST_HEAD(&wl->list);
2169 wl->plat_dev = plat_dev;
2171 skb_queue_head_init(&wl->tx_queue);
2173 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
2174 wl->channel = WL1271_DEFAULT_CHANNEL;
2175 wl->default_key = 0;
2177 wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
2178 wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
2179 wl->psm_entry_retry = 0;
2180 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
2181 wl->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
2182 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
2183 wl->sta_rate_set = 0;
2184 wl->band = IEEE80211_BAND_2GHZ;
2187 wl->sg_enabled = true;
2189 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
2190 wl->tx_frames[i] = NULL;
2192 spin_lock_init(&wl->wl_lock);
2194 wl->state = WL1271_STATE_OFF;
2195 mutex_init(&wl->mutex);
2197 /* Apply default driver configuration. */
2198 wl1271_conf_init(wl);
2200 wl1271_debugfs_init(wl);
2202 /* Register platform device */
2203 ret = platform_device_register(wl->plat_dev);
2205 wl1271_error("couldn't register platform device");
2208 dev_set_drvdata(&wl->plat_dev->dev, wl);
2210 /* Create sysfs file to control bt coex state */
2211 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
2213 wl1271_error("failed to create sysfs file bt_coex_state");
2220 platform_device_unregister(wl->plat_dev);
2223 wl1271_debugfs_exit(wl);
2227 ieee80211_free_hw(hw);
2231 return ERR_PTR(ret);
2233 EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
2235 int wl1271_free_hw(struct wl1271 *wl)
2237 platform_device_unregister(wl->plat_dev);
2238 kfree(wl->plat_dev);
2240 wl1271_debugfs_exit(wl);
2242 kfree(wl->target_mem_map);
2248 kfree(wl->fw_status);
2249 kfree(wl->tx_res_if);
2251 ieee80211_free_hw(wl->hw);
2255 EXPORT_SYMBOL_GPL(wl1271_free_hw);
2257 MODULE_LICENSE("GPL");
2258 MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
2259 MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");