2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/init.h>
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/sched.h>
17 #include <linux/spinlock.h>
18 #include <linux/list.h>
19 #include <linux/pci.h>
20 #include <linux/delay.h>
21 #include <linux/completion.h>
22 #include <linux/etherdevice.h>
23 #include <linux/slab.h>
24 #include <net/mac80211.h>
25 #include <linux/moduleparam.h>
26 #include <linux/firmware.h>
27 #include <linux/workqueue.h>
29 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
30 #define MWL8K_NAME KBUILD_MODNAME
31 #define MWL8K_VERSION "0.13"
33 /* Module parameters */
34 static bool ap_mode_default;
35 module_param(ap_mode_default, bool, 0);
36 MODULE_PARM_DESC(ap_mode_default,
37 "Set to 1 to make ap mode the default instead of sta mode");
39 /* Register definitions */
40 #define MWL8K_HIU_GEN_PTR 0x00000c10
41 #define MWL8K_MODE_STA 0x0000005a
42 #define MWL8K_MODE_AP 0x000000a5
43 #define MWL8K_HIU_INT_CODE 0x00000c14
44 #define MWL8K_FWSTA_READY 0xf0f1f2f4
45 #define MWL8K_FWAP_READY 0xf1f2f4a5
46 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
47 #define MWL8K_HIU_SCRATCH 0x00000c40
49 /* Host->device communications */
50 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
51 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
52 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
53 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
54 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
55 #define MWL8K_H2A_INT_DUMMY (1 << 20)
56 #define MWL8K_H2A_INT_RESET (1 << 15)
57 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
58 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
60 /* Device->host communications */
61 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
62 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
63 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
64 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
65 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
66 #define MWL8K_A2H_INT_DUMMY (1 << 20)
67 #define MWL8K_A2H_INT_BA_WATCHDOG (1 << 14)
68 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
69 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
70 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
71 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
72 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
73 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
74 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
75 #define MWL8K_A2H_INT_RX_READY (1 << 1)
76 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
78 /* HW micro second timer register
79 * located at offset 0xA600. This
80 * will be used to timestamp tx
84 #define MWL8K_HW_TIMER_REGISTER 0x0000a600
86 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
87 MWL8K_A2H_INT_CHNL_SWITCHED | \
88 MWL8K_A2H_INT_QUEUE_EMPTY | \
89 MWL8K_A2H_INT_RADAR_DETECT | \
90 MWL8K_A2H_INT_RADIO_ON | \
91 MWL8K_A2H_INT_RADIO_OFF | \
92 MWL8K_A2H_INT_MAC_EVENT | \
93 MWL8K_A2H_INT_OPC_DONE | \
94 MWL8K_A2H_INT_RX_READY | \
95 MWL8K_A2H_INT_TX_DONE | \
96 MWL8K_A2H_INT_BA_WATCHDOG)
98 #define MWL8K_RX_QUEUES 1
99 #define MWL8K_TX_WMM_QUEUES 4
100 #define MWL8K_MAX_AMPDU_QUEUES 8
101 #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
102 #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
104 /* txpriorities are mapped with hw queues.
105 * Each hw queue has a txpriority.
107 #define TOTAL_HW_TX_QUEUES 8
109 /* Each HW queue can have one AMPDU stream.
110 * But, because one of the hw queue is reserved,
111 * maximum AMPDU queues that can be created are
112 * one short of total tx queues.
114 #define MWL8K_NUM_AMPDU_STREAMS (TOTAL_HW_TX_QUEUES - 1)
118 void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
119 void (*rxd_refill)(void *rxd, dma_addr_t addr, int len);
120 int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status,
121 __le16 *qos, s8 *noise);
124 struct mwl8k_device_info {
129 struct rxd_ops *ap_rxd_ops;
133 struct mwl8k_rx_queue {
136 /* hw receives here */
139 /* refill descs here */
146 DEFINE_DMA_UNMAP_ADDR(dma);
150 struct mwl8k_tx_queue {
151 /* hw transmits here */
154 /* sw appends here */
158 struct mwl8k_tx_desc *txd;
160 struct sk_buff **skb;
166 AMPDU_STREAM_IN_PROGRESS,
170 struct mwl8k_ampdu_stream {
171 struct ieee80211_sta *sta;
178 struct ieee80211_hw *hw;
179 struct pci_dev *pdev;
182 struct mwl8k_device_info *device_info;
188 const struct firmware *fw_helper;
189 const struct firmware *fw_ucode;
191 /* hardware/firmware parameters */
193 struct rxd_ops *rxd_ops;
194 struct ieee80211_supported_band band_24;
195 struct ieee80211_channel channels_24[14];
196 struct ieee80211_rate rates_24[14];
197 struct ieee80211_supported_band band_50;
198 struct ieee80211_channel channels_50[4];
199 struct ieee80211_rate rates_50[9];
200 u32 ap_macids_supported;
201 u32 sta_macids_supported;
203 /* Ampdu stream information */
205 spinlock_t stream_lock;
206 struct mwl8k_ampdu_stream ampdu[MWL8K_MAX_AMPDU_QUEUES];
207 struct work_struct watchdog_ba_handle;
209 /* firmware access */
210 struct mutex fw_mutex;
211 struct task_struct *fw_mutex_owner;
212 struct task_struct *hw_restart_owner;
214 struct completion *hostcmd_wait;
216 atomic_t watchdog_event_pending;
218 /* lock held over TX and TX reap */
221 /* TX quiesce completion, protected by fw_mutex and tx_lock */
222 struct completion *tx_wait;
224 /* List of interfaces. */
226 struct list_head vif_list;
228 /* power management status cookie from firmware */
230 dma_addr_t cookie_dma;
238 * Running count of TX packets in flight, to avoid
239 * iterating over the transmit rings each time.
243 struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES];
244 struct mwl8k_tx_queue txq[MWL8K_MAX_TX_QUEUES];
245 u32 txq_offset[MWL8K_MAX_TX_QUEUES];
248 bool radio_short_preamble;
249 bool sniffer_enabled;
252 /* XXX need to convert this to handle multiple interfaces */
254 u8 capture_bssid[ETH_ALEN];
255 struct sk_buff *beacon_skb;
258 * This FJ worker has to be global as it is scheduled from the
259 * RX handler. At this point we don't know which interface it
260 * belongs to until the list of bssids waiting to complete join
263 struct work_struct finalize_join_worker;
265 /* Tasklet to perform TX reclaim. */
266 struct tasklet_struct poll_tx_task;
268 /* Tasklet to perform RX. */
269 struct tasklet_struct poll_rx_task;
271 /* Most recently reported noise in dBm */
275 * preserve the queue configurations so they can be restored if/when
276 * the firmware image is swapped.
278 struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_WMM_QUEUES];
280 /* To perform the task of reloading the firmware */
281 struct work_struct fw_reload;
282 bool hw_restart_in_progress;
284 /* async firmware loading state */
289 struct completion firmware_loading_complete;
291 /* bitmap of running BSSes */
295 #define MAX_WEP_KEY_LEN 13
296 #define NUM_WEP_KEYS 4
298 /* Per interface specific private data */
300 struct list_head list;
301 struct ieee80211_vif *vif;
303 /* Firmware macid for this vif. */
306 /* Non AMPDU sequence number assigned by driver. */
312 u8 key[sizeof(struct ieee80211_key_conf) + MAX_WEP_KEY_LEN];
313 } wep_key_conf[NUM_WEP_KEYS];
318 /* A flag to indicate is HW crypto is enabled for this bssid */
319 bool is_hw_crypto_enabled;
321 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
322 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
324 struct tx_traffic_info {
329 #define MWL8K_MAX_TID 8
331 /* Index into station database. Returned by UPDATE_STADB. */
334 struct tx_traffic_info tx_stats[MWL8K_MAX_TID];
336 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
338 static const struct ieee80211_channel mwl8k_channels_24[] = {
339 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2412, .hw_value = 1, },
340 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2417, .hw_value = 2, },
341 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2422, .hw_value = 3, },
342 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2427, .hw_value = 4, },
343 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2432, .hw_value = 5, },
344 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2437, .hw_value = 6, },
345 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2442, .hw_value = 7, },
346 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2447, .hw_value = 8, },
347 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2452, .hw_value = 9, },
348 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2457, .hw_value = 10, },
349 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2462, .hw_value = 11, },
350 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2467, .hw_value = 12, },
351 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2472, .hw_value = 13, },
352 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2484, .hw_value = 14, },
355 static const struct ieee80211_rate mwl8k_rates_24[] = {
356 { .bitrate = 10, .hw_value = 2, },
357 { .bitrate = 20, .hw_value = 4, },
358 { .bitrate = 55, .hw_value = 11, },
359 { .bitrate = 110, .hw_value = 22, },
360 { .bitrate = 220, .hw_value = 44, },
361 { .bitrate = 60, .hw_value = 12, },
362 { .bitrate = 90, .hw_value = 18, },
363 { .bitrate = 120, .hw_value = 24, },
364 { .bitrate = 180, .hw_value = 36, },
365 { .bitrate = 240, .hw_value = 48, },
366 { .bitrate = 360, .hw_value = 72, },
367 { .bitrate = 480, .hw_value = 96, },
368 { .bitrate = 540, .hw_value = 108, },
369 { .bitrate = 720, .hw_value = 144, },
372 static const struct ieee80211_channel mwl8k_channels_50[] = {
373 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5180, .hw_value = 36, },
374 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5200, .hw_value = 40, },
375 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5220, .hw_value = 44, },
376 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5240, .hw_value = 48, },
379 static const struct ieee80211_rate mwl8k_rates_50[] = {
380 { .bitrate = 60, .hw_value = 12, },
381 { .bitrate = 90, .hw_value = 18, },
382 { .bitrate = 120, .hw_value = 24, },
383 { .bitrate = 180, .hw_value = 36, },
384 { .bitrate = 240, .hw_value = 48, },
385 { .bitrate = 360, .hw_value = 72, },
386 { .bitrate = 480, .hw_value = 96, },
387 { .bitrate = 540, .hw_value = 108, },
388 { .bitrate = 720, .hw_value = 144, },
391 /* Set or get info from Firmware */
392 #define MWL8K_CMD_GET 0x0000
393 #define MWL8K_CMD_SET 0x0001
394 #define MWL8K_CMD_SET_LIST 0x0002
396 /* Firmware command codes */
397 #define MWL8K_CMD_CODE_DNLD 0x0001
398 #define MWL8K_CMD_GET_HW_SPEC 0x0003
399 #define MWL8K_CMD_SET_HW_SPEC 0x0004
400 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
401 #define MWL8K_CMD_GET_STAT 0x0014
402 #define MWL8K_CMD_RADIO_CONTROL 0x001c
403 #define MWL8K_CMD_RF_TX_POWER 0x001e
404 #define MWL8K_CMD_TX_POWER 0x001f
405 #define MWL8K_CMD_RF_ANTENNA 0x0020
406 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
407 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
408 #define MWL8K_CMD_SET_POST_SCAN 0x0108
409 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
410 #define MWL8K_CMD_SET_AID 0x010d
411 #define MWL8K_CMD_SET_RATE 0x0110
412 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
413 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
414 #define MWL8K_CMD_SET_SLOT 0x0114
415 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
416 #define MWL8K_CMD_SET_WMM_MODE 0x0123
417 #define MWL8K_CMD_MIMO_CONFIG 0x0125
418 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
419 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
420 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
421 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
422 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
423 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
424 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
425 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
426 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
427 #define MWL8K_CMD_UPDATE_STADB 0x1123
428 #define MWL8K_CMD_BASTREAM 0x1125
430 static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
432 u16 command = le16_to_cpu(cmd);
434 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
435 snprintf(buf, bufsize, "%s", #x);\
438 switch (command & ~0x8000) {
439 MWL8K_CMDNAME(CODE_DNLD);
440 MWL8K_CMDNAME(GET_HW_SPEC);
441 MWL8K_CMDNAME(SET_HW_SPEC);
442 MWL8K_CMDNAME(MAC_MULTICAST_ADR);
443 MWL8K_CMDNAME(GET_STAT);
444 MWL8K_CMDNAME(RADIO_CONTROL);
445 MWL8K_CMDNAME(RF_TX_POWER);
446 MWL8K_CMDNAME(TX_POWER);
447 MWL8K_CMDNAME(RF_ANTENNA);
448 MWL8K_CMDNAME(SET_BEACON);
449 MWL8K_CMDNAME(SET_PRE_SCAN);
450 MWL8K_CMDNAME(SET_POST_SCAN);
451 MWL8K_CMDNAME(SET_RF_CHANNEL);
452 MWL8K_CMDNAME(SET_AID);
453 MWL8K_CMDNAME(SET_RATE);
454 MWL8K_CMDNAME(SET_FINALIZE_JOIN);
455 MWL8K_CMDNAME(RTS_THRESHOLD);
456 MWL8K_CMDNAME(SET_SLOT);
457 MWL8K_CMDNAME(SET_EDCA_PARAMS);
458 MWL8K_CMDNAME(SET_WMM_MODE);
459 MWL8K_CMDNAME(MIMO_CONFIG);
460 MWL8K_CMDNAME(USE_FIXED_RATE);
461 MWL8K_CMDNAME(ENABLE_SNIFFER);
462 MWL8K_CMDNAME(SET_MAC_ADDR);
463 MWL8K_CMDNAME(SET_RATEADAPT_MODE);
464 MWL8K_CMDNAME(BSS_START);
465 MWL8K_CMDNAME(SET_NEW_STN);
466 MWL8K_CMDNAME(UPDATE_ENCRYPTION);
467 MWL8K_CMDNAME(UPDATE_STADB);
468 MWL8K_CMDNAME(BASTREAM);
469 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP);
471 snprintf(buf, bufsize, "0x%x", cmd);
478 /* Hardware and firmware reset */
479 static void mwl8k_hw_reset(struct mwl8k_priv *priv)
481 iowrite32(MWL8K_H2A_INT_RESET,
482 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
483 iowrite32(MWL8K_H2A_INT_RESET,
484 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
488 /* Release fw image */
489 static void mwl8k_release_fw(const struct firmware **fw)
493 release_firmware(*fw);
497 static void mwl8k_release_firmware(struct mwl8k_priv *priv)
499 mwl8k_release_fw(&priv->fw_ucode);
500 mwl8k_release_fw(&priv->fw_helper);
503 /* states for asynchronous f/w loading */
504 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context);
507 FW_STATE_LOADING_PREF,
508 FW_STATE_LOADING_ALT,
512 /* Request fw image */
513 static int mwl8k_request_fw(struct mwl8k_priv *priv,
514 const char *fname, const struct firmware **fw,
517 /* release current image */
519 mwl8k_release_fw(fw);
522 return request_firmware_nowait(THIS_MODULE, 1, fname,
523 &priv->pdev->dev, GFP_KERNEL,
524 priv, mwl8k_fw_state_machine);
526 return request_firmware(fw, fname, &priv->pdev->dev);
529 static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image,
532 struct mwl8k_device_info *di = priv->device_info;
535 if (di->helper_image != NULL) {
537 rc = mwl8k_request_fw(priv, di->helper_image,
538 &priv->fw_helper, true);
540 rc = mwl8k_request_fw(priv, di->helper_image,
541 &priv->fw_helper, false);
543 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
544 pci_name(priv->pdev), di->helper_image);
552 * if we get here, no helper image is needed. Skip the
553 * FW_STATE_INIT state.
555 priv->fw_state = FW_STATE_LOADING_PREF;
556 rc = mwl8k_request_fw(priv, fw_image,
560 rc = mwl8k_request_fw(priv, fw_image,
561 &priv->fw_ucode, false);
563 printk(KERN_ERR "%s: Error requesting firmware file %s\n",
564 pci_name(priv->pdev), fw_image);
565 mwl8k_release_fw(&priv->fw_helper);
572 struct mwl8k_cmd_pkt {
585 mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
587 void __iomem *regs = priv->regs;
591 dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE);
592 if (pci_dma_mapping_error(priv->pdev, dma_addr))
595 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
596 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
597 iowrite32(MWL8K_H2A_INT_DOORBELL,
598 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
599 iowrite32(MWL8K_H2A_INT_DUMMY,
600 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
606 int_code = ioread32(regs +
607 MWL8K_HIU_H2A_INTERRUPT_STATUS);
611 int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
612 if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
613 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
621 pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE);
623 return loops ? 0 : -ETIMEDOUT;
626 static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
627 const u8 *data, size_t length)
629 struct mwl8k_cmd_pkt *cmd;
633 cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL);
637 cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
644 int block_size = length > 256 ? 256 : length;
646 memcpy(cmd->payload, data + done, block_size);
647 cmd->length = cpu_to_le16(block_size);
649 rc = mwl8k_send_fw_load_cmd(priv, cmd,
650 sizeof(*cmd) + block_size);
655 length -= block_size;
660 rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd));
668 static int mwl8k_feed_fw_image(struct mwl8k_priv *priv,
669 const u8 *data, size_t length)
671 unsigned char *buffer;
672 int may_continue, rc = 0;
673 u32 done, prev_block_size;
675 buffer = kmalloc(1024, GFP_KERNEL);
682 while (may_continue > 0) {
685 block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH);
686 if (block_size & 1) {
690 done += prev_block_size;
691 length -= prev_block_size;
694 if (block_size > 1024 || block_size > length) {
704 if (block_size == 0) {
711 prev_block_size = block_size;
712 memcpy(buffer, data + done, block_size);
714 rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size);
719 if (!rc && length != 0)
727 static int mwl8k_load_firmware(struct ieee80211_hw *hw)
729 struct mwl8k_priv *priv = hw->priv;
730 const struct firmware *fw = priv->fw_ucode;
734 if (!memcmp(fw->data, "\x01\x00\x00\x00", 4) && !priv->is_8764) {
735 const struct firmware *helper = priv->fw_helper;
737 if (helper == NULL) {
738 printk(KERN_ERR "%s: helper image needed but none "
739 "given\n", pci_name(priv->pdev));
743 rc = mwl8k_load_fw_image(priv, helper->data, helper->size);
745 printk(KERN_ERR "%s: unable to load firmware "
746 "helper image\n", pci_name(priv->pdev));
751 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
754 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
756 rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
760 printk(KERN_ERR "%s: unable to load firmware image\n",
761 pci_name(priv->pdev));
765 iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR);
771 ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE);
772 if (ready_code == MWL8K_FWAP_READY) {
775 } else if (ready_code == MWL8K_FWSTA_READY) {
784 return loops ? 0 : -ETIMEDOUT;
788 /* DMA header used by firmware and hardware. */
789 struct mwl8k_dma_data {
791 struct ieee80211_hdr wh;
795 /* Routines to add/remove DMA header from skb. */
796 static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos)
798 struct mwl8k_dma_data *tr;
801 tr = (struct mwl8k_dma_data *)skb->data;
802 hdrlen = ieee80211_hdrlen(tr->wh.frame_control);
804 if (hdrlen != sizeof(tr->wh)) {
805 if (ieee80211_is_data_qos(tr->wh.frame_control)) {
806 memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2);
807 *((__le16 *)(tr->data - 2)) = qos;
809 memmove(tr->data - hdrlen, &tr->wh, hdrlen);
813 if (hdrlen != sizeof(*tr))
814 skb_pull(skb, sizeof(*tr) - hdrlen);
817 #define REDUCED_TX_HEADROOM 8
820 mwl8k_add_dma_header(struct mwl8k_priv *priv, struct sk_buff *skb,
821 int head_pad, int tail_pad)
823 struct ieee80211_hdr *wh;
826 struct mwl8k_dma_data *tr;
829 * Add a firmware DMA header; the firmware requires that we
830 * present a 2-byte payload length followed by a 4-address
831 * header (without QoS field), followed (optionally) by any
832 * WEP/ExtIV header (but only filled in for CCMP).
834 wh = (struct ieee80211_hdr *)skb->data;
836 hdrlen = ieee80211_hdrlen(wh->frame_control);
839 * Check if skb_resize is required because of
840 * tx_headroom adjustment.
842 if (priv->ap_fw && (hdrlen < (sizeof(struct ieee80211_cts)
843 + REDUCED_TX_HEADROOM))) {
844 if (pskb_expand_head(skb, REDUCED_TX_HEADROOM, 0, GFP_ATOMIC)) {
846 wiphy_err(priv->hw->wiphy,
847 "Failed to reallocate TX buffer\n");
850 skb->truesize += REDUCED_TX_HEADROOM;
853 reqd_hdrlen = sizeof(*tr) + head_pad;
855 if (hdrlen != reqd_hdrlen)
856 skb_push(skb, reqd_hdrlen - hdrlen);
858 if (ieee80211_is_data_qos(wh->frame_control))
859 hdrlen -= IEEE80211_QOS_CTL_LEN;
861 tr = (struct mwl8k_dma_data *)skb->data;
863 memmove(&tr->wh, wh, hdrlen);
864 if (hdrlen != sizeof(tr->wh))
865 memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen);
868 * Firmware length is the length of the fully formed "802.11
869 * payload". That is, everything except for the 802.11 header.
870 * This includes all crypto material including the MIC.
872 tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr) + tail_pad);
875 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv *priv,
878 struct ieee80211_hdr *wh;
879 struct ieee80211_tx_info *tx_info;
880 struct ieee80211_key_conf *key_conf;
884 wh = (struct ieee80211_hdr *)skb->data;
886 tx_info = IEEE80211_SKB_CB(skb);
889 if (ieee80211_is_data(wh->frame_control))
890 key_conf = tx_info->control.hw_key;
893 * Make sure the packet header is in the DMA header format (4-address
894 * without QoS), and add head & tail padding when HW crypto is enabled.
896 * We have the following trailer padding requirements:
897 * - WEP: 4 trailer bytes (ICV)
898 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
899 * - CCMP: 8 trailer bytes (MIC)
902 if (key_conf != NULL) {
903 head_pad = key_conf->iv_len;
904 switch (key_conf->cipher) {
905 case WLAN_CIPHER_SUITE_WEP40:
906 case WLAN_CIPHER_SUITE_WEP104:
909 case WLAN_CIPHER_SUITE_TKIP:
912 case WLAN_CIPHER_SUITE_CCMP:
917 mwl8k_add_dma_header(priv, skb, head_pad, data_pad);
921 * Packet reception for 88w8366/88w8764 AP firmware.
923 struct mwl8k_rxd_ap {
927 __le32 pkt_phys_addr;
928 __le32 next_rxd_phys_addr;
932 __le32 hw_noise_floor_info;
941 #define MWL8K_AP_RATE_INFO_MCS_FORMAT 0x80
942 #define MWL8K_AP_RATE_INFO_40MHZ 0x40
943 #define MWL8K_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
945 #define MWL8K_AP_RX_CTRL_OWNED_BY_HOST 0x80
947 /* 8366/8764 AP rx_status bits */
948 #define MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
949 #define MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
950 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
951 #define MWL8K_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
952 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
954 static void mwl8k_rxd_ap_init(void *_rxd, dma_addr_t next_dma_addr)
956 struct mwl8k_rxd_ap *rxd = _rxd;
958 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
959 rxd->rx_ctrl = MWL8K_AP_RX_CTRL_OWNED_BY_HOST;
962 static void mwl8k_rxd_ap_refill(void *_rxd, dma_addr_t addr, int len)
964 struct mwl8k_rxd_ap *rxd = _rxd;
966 rxd->pkt_len = cpu_to_le16(len);
967 rxd->pkt_phys_addr = cpu_to_le32(addr);
973 mwl8k_rxd_ap_process(void *_rxd, struct ieee80211_rx_status *status,
974 __le16 *qos, s8 *noise)
976 struct mwl8k_rxd_ap *rxd = _rxd;
978 if (!(rxd->rx_ctrl & MWL8K_AP_RX_CTRL_OWNED_BY_HOST))
982 memset(status, 0, sizeof(*status));
984 status->signal = -rxd->rssi;
985 *noise = -rxd->noise_floor;
987 if (rxd->rate & MWL8K_AP_RATE_INFO_MCS_FORMAT) {
988 status->flag |= RX_FLAG_HT;
989 if (rxd->rate & MWL8K_AP_RATE_INFO_40MHZ)
990 status->flag |= RX_FLAG_40MHZ;
991 status->rate_idx = MWL8K_AP_RATE_INFO_RATEID(rxd->rate);
995 for (i = 0; i < ARRAY_SIZE(mwl8k_rates_24); i++) {
996 if (mwl8k_rates_24[i].hw_value == rxd->rate) {
997 status->rate_idx = i;
1003 if (rxd->channel > 14) {
1004 status->band = IEEE80211_BAND_5GHZ;
1005 if (!(status->flag & RX_FLAG_HT))
1006 status->rate_idx -= 5;
1008 status->band = IEEE80211_BAND_2GHZ;
1010 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1013 *qos = rxd->qos_control;
1015 if ((rxd->rx_status != MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR) &&
1016 (rxd->rx_status & MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK) &&
1017 (rxd->rx_status & MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR))
1018 status->flag |= RX_FLAG_MMIC_ERROR;
1020 return le16_to_cpu(rxd->pkt_len);
1023 static struct rxd_ops rxd_ap_ops = {
1024 .rxd_size = sizeof(struct mwl8k_rxd_ap),
1025 .rxd_init = mwl8k_rxd_ap_init,
1026 .rxd_refill = mwl8k_rxd_ap_refill,
1027 .rxd_process = mwl8k_rxd_ap_process,
1031 * Packet reception for STA firmware.
1033 struct mwl8k_rxd_sta {
1037 __le32 pkt_phys_addr;
1038 __le32 next_rxd_phys_addr;
1050 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1051 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1052 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1053 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1054 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1055 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1057 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1058 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1059 /* ICV=0 or MIC=1 */
1060 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1061 /* Key is uploaded only in failure case */
1062 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1064 static void mwl8k_rxd_sta_init(void *_rxd, dma_addr_t next_dma_addr)
1066 struct mwl8k_rxd_sta *rxd = _rxd;
1068 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
1069 rxd->rx_ctrl = MWL8K_STA_RX_CTRL_OWNED_BY_HOST;
1072 static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len)
1074 struct mwl8k_rxd_sta *rxd = _rxd;
1076 rxd->pkt_len = cpu_to_le16(len);
1077 rxd->pkt_phys_addr = cpu_to_le32(addr);
1083 mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
1084 __le16 *qos, s8 *noise)
1086 struct mwl8k_rxd_sta *rxd = _rxd;
1089 if (!(rxd->rx_ctrl & MWL8K_STA_RX_CTRL_OWNED_BY_HOST))
1093 rate_info = le16_to_cpu(rxd->rate_info);
1095 memset(status, 0, sizeof(*status));
1097 status->signal = -rxd->rssi;
1098 *noise = -rxd->noise_level;
1099 status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info);
1100 status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info);
1102 if (rate_info & MWL8K_STA_RATE_INFO_SHORTPRE)
1103 status->flag |= RX_FLAG_SHORTPRE;
1104 if (rate_info & MWL8K_STA_RATE_INFO_40MHZ)
1105 status->flag |= RX_FLAG_40MHZ;
1106 if (rate_info & MWL8K_STA_RATE_INFO_SHORTGI)
1107 status->flag |= RX_FLAG_SHORT_GI;
1108 if (rate_info & MWL8K_STA_RATE_INFO_MCS_FORMAT)
1109 status->flag |= RX_FLAG_HT;
1111 if (rxd->channel > 14) {
1112 status->band = IEEE80211_BAND_5GHZ;
1113 if (!(status->flag & RX_FLAG_HT))
1114 status->rate_idx -= 5;
1116 status->band = IEEE80211_BAND_2GHZ;
1118 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1121 *qos = rxd->qos_control;
1122 if ((rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DECRYPT_ERROR) &&
1123 (rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DEC_ERR_TYPE))
1124 status->flag |= RX_FLAG_MMIC_ERROR;
1126 return le16_to_cpu(rxd->pkt_len);
1129 static struct rxd_ops rxd_sta_ops = {
1130 .rxd_size = sizeof(struct mwl8k_rxd_sta),
1131 .rxd_init = mwl8k_rxd_sta_init,
1132 .rxd_refill = mwl8k_rxd_sta_refill,
1133 .rxd_process = mwl8k_rxd_sta_process,
1137 #define MWL8K_RX_DESCS 256
1138 #define MWL8K_RX_MAXSZ 3800
1140 static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
1142 struct mwl8k_priv *priv = hw->priv;
1143 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1151 size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size;
1153 rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma);
1154 if (rxq->rxd == NULL) {
1155 wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n");
1158 memset(rxq->rxd, 0, size);
1160 rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL);
1161 if (rxq->buf == NULL) {
1162 pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
1166 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1170 dma_addr_t next_dma_addr;
1172 desc_size = priv->rxd_ops->rxd_size;
1173 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
1176 if (nexti == MWL8K_RX_DESCS)
1178 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
1180 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
1186 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
1188 struct mwl8k_priv *priv = hw->priv;
1189 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1193 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
1194 struct sk_buff *skb;
1199 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
1203 addr = pci_map_single(priv->pdev, skb->data,
1204 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
1208 if (rxq->tail == MWL8K_RX_DESCS)
1210 rxq->buf[rx].skb = skb;
1211 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
1213 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
1214 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
1222 /* Must be called only when the card's reception is completely halted */
1223 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1225 struct mwl8k_priv *priv = hw->priv;
1226 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1229 if (rxq->rxd == NULL)
1232 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1233 if (rxq->buf[i].skb != NULL) {
1234 pci_unmap_single(priv->pdev,
1235 dma_unmap_addr(&rxq->buf[i], dma),
1236 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1237 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1239 kfree_skb(rxq->buf[i].skb);
1240 rxq->buf[i].skb = NULL;
1247 pci_free_consistent(priv->pdev,
1248 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1249 rxq->rxd, rxq->rxd_dma);
1255 * Scan a list of BSSIDs to process for finalize join.
1256 * Allows for extension to process multiple BSSIDs.
1259 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1261 return priv->capture_beacon &&
1262 ieee80211_is_beacon(wh->frame_control) &&
1263 ether_addr_equal(wh->addr3, priv->capture_bssid);
1266 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1267 struct sk_buff *skb)
1269 struct mwl8k_priv *priv = hw->priv;
1271 priv->capture_beacon = false;
1272 memset(priv->capture_bssid, 0, ETH_ALEN);
1275 * Use GFP_ATOMIC as rxq_process is called from
1276 * the primary interrupt handler, memory allocation call
1279 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1280 if (priv->beacon_skb != NULL)
1281 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1284 static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list,
1287 struct mwl8k_vif *mwl8k_vif;
1289 list_for_each_entry(mwl8k_vif,
1291 if (memcmp(bssid, mwl8k_vif->bssid,
1299 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1301 struct mwl8k_priv *priv = hw->priv;
1302 struct mwl8k_vif *mwl8k_vif = NULL;
1303 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1307 while (rxq->rxd_count && limit--) {
1308 struct sk_buff *skb;
1311 struct ieee80211_rx_status status;
1312 struct ieee80211_hdr *wh;
1315 skb = rxq->buf[rxq->head].skb;
1319 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1321 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1326 rxq->buf[rxq->head].skb = NULL;
1328 pci_unmap_single(priv->pdev,
1329 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1330 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1331 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1334 if (rxq->head == MWL8K_RX_DESCS)
1339 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1342 * Check for a pending join operation. Save a
1343 * copy of the beacon and schedule a tasklet to
1344 * send a FINALIZE_JOIN command to the firmware.
1346 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1347 mwl8k_save_beacon(hw, skb);
1349 if (ieee80211_has_protected(wh->frame_control)) {
1351 /* Check if hw crypto has been enabled for
1352 * this bss. If yes, set the status flags
1355 mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list,
1358 if (mwl8k_vif != NULL &&
1359 mwl8k_vif->is_hw_crypto_enabled) {
1361 * When MMIC ERROR is encountered
1362 * by the firmware, payload is
1363 * dropped and only 32 bytes of
1364 * mwl8k Firmware header is sent
1367 * We need to add four bytes of
1368 * key information. In it
1369 * MAC80211 expects keyidx set to
1370 * 0 for triggering Counter
1371 * Measure of MMIC failure.
1373 if (status.flag & RX_FLAG_MMIC_ERROR) {
1374 struct mwl8k_dma_data *tr;
1375 tr = (struct mwl8k_dma_data *)skb->data;
1376 memset((void *)&(tr->data), 0, 4);
1380 if (!ieee80211_is_auth(wh->frame_control))
1381 status.flag |= RX_FLAG_IV_STRIPPED |
1383 RX_FLAG_MMIC_STRIPPED;
1387 skb_put(skb, pkt_len);
1388 mwl8k_remove_dma_header(skb, qos);
1389 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1390 ieee80211_rx_irqsafe(hw, skb);
1400 * Packet transmission.
1403 #define MWL8K_TXD_STATUS_OK 0x00000001
1404 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1405 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1406 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1407 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1409 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1410 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1411 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1412 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1413 #define MWL8K_QOS_EOSP 0x0010
1415 struct mwl8k_tx_desc {
1420 __le32 pkt_phys_addr;
1422 __u8 dest_MAC_addr[ETH_ALEN];
1423 __le32 next_txd_phys_addr;
1430 #define MWL8K_TX_DESCS 128
1432 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1434 struct mwl8k_priv *priv = hw->priv;
1435 struct mwl8k_tx_queue *txq = priv->txq + index;
1443 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1445 txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
1446 if (txq->txd == NULL) {
1447 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1450 memset(txq->txd, 0, size);
1452 txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL);
1453 if (txq->skb == NULL) {
1454 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1458 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1459 struct mwl8k_tx_desc *tx_desc;
1462 tx_desc = txq->txd + i;
1463 nexti = (i + 1) % MWL8K_TX_DESCS;
1465 tx_desc->status = 0;
1466 tx_desc->next_txd_phys_addr =
1467 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1473 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1475 iowrite32(MWL8K_H2A_INT_PPA_READY,
1476 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1477 iowrite32(MWL8K_H2A_INT_DUMMY,
1478 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1479 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1482 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1484 struct mwl8k_priv *priv = hw->priv;
1487 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
1488 struct mwl8k_tx_queue *txq = priv->txq + i;
1494 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1495 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1498 status = le32_to_cpu(tx_desc->status);
1499 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1504 if (tx_desc->pkt_len == 0)
1508 wiphy_err(hw->wiphy,
1509 "txq[%d] len=%d head=%d tail=%d "
1510 "fw_owned=%d drv_owned=%d unused=%d\n",
1512 txq->len, txq->head, txq->tail,
1513 fw_owned, drv_owned, unused);
1518 * Must be called with priv->fw_mutex held and tx queues stopped.
1520 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1522 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1524 struct mwl8k_priv *priv = hw->priv;
1525 DECLARE_COMPLETION_ONSTACK(tx_wait);
1531 /* Since fw restart is in progress, allow only the firmware
1532 * commands from the restart code and block the other
1533 * commands since they are going to fail in any case since
1534 * the firmware has crashed
1536 if (priv->hw_restart_in_progress) {
1537 if (priv->hw_restart_owner == current)
1543 if (atomic_read(&priv->watchdog_event_pending))
1547 * The TX queues are stopped at this point, so this test
1548 * doesn't need to take ->tx_lock.
1550 if (!priv->pending_tx_pkts)
1556 spin_lock_bh(&priv->tx_lock);
1557 priv->tx_wait = &tx_wait;
1560 unsigned long timeout;
1562 oldcount = priv->pending_tx_pkts;
1564 spin_unlock_bh(&priv->tx_lock);
1565 timeout = wait_for_completion_timeout(&tx_wait,
1566 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1568 if (atomic_read(&priv->watchdog_event_pending)) {
1569 spin_lock_bh(&priv->tx_lock);
1570 priv->tx_wait = NULL;
1571 spin_unlock_bh(&priv->tx_lock);
1575 spin_lock_bh(&priv->tx_lock);
1578 WARN_ON(priv->pending_tx_pkts);
1580 wiphy_notice(hw->wiphy, "tx rings drained\n");
1584 if (priv->pending_tx_pkts < oldcount) {
1585 wiphy_notice(hw->wiphy,
1586 "waiting for tx rings to drain (%d -> %d pkts)\n",
1587 oldcount, priv->pending_tx_pkts);
1592 priv->tx_wait = NULL;
1594 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1595 MWL8K_TX_WAIT_TIMEOUT_MS);
1596 mwl8k_dump_tx_rings(hw);
1597 priv->hw_restart_in_progress = true;
1598 ieee80211_queue_work(hw, &priv->fw_reload);
1602 priv->tx_wait = NULL;
1603 spin_unlock_bh(&priv->tx_lock);
1608 #define MWL8K_TXD_SUCCESS(status) \
1609 ((status) & (MWL8K_TXD_STATUS_OK | \
1610 MWL8K_TXD_STATUS_OK_RETRY | \
1611 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1613 static int mwl8k_tid_queue_mapping(u8 tid)
1620 return IEEE80211_AC_BE;
1624 return IEEE80211_AC_BK;
1628 return IEEE80211_AC_VI;
1632 return IEEE80211_AC_VO;
1640 /* The firmware will fill in the rate information
1641 * for each packet that gets queued in the hardware
1642 * and these macros will interpret that info.
1645 #define RI_FORMAT(a) (a & 0x0001)
1646 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1649 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1651 struct mwl8k_priv *priv = hw->priv;
1652 struct mwl8k_tx_queue *txq = priv->txq + index;
1656 while (txq->len > 0 && limit--) {
1658 struct mwl8k_tx_desc *tx_desc;
1661 struct sk_buff *skb;
1662 struct ieee80211_tx_info *info;
1664 struct ieee80211_sta *sta;
1665 struct mwl8k_sta *sta_info = NULL;
1667 struct ieee80211_hdr *wh;
1670 tx_desc = txq->txd + tx;
1672 status = le32_to_cpu(tx_desc->status);
1674 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1678 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1681 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1682 BUG_ON(txq->len == 0);
1684 priv->pending_tx_pkts--;
1686 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1687 size = le16_to_cpu(tx_desc->pkt_len);
1689 txq->skb[tx] = NULL;
1691 BUG_ON(skb == NULL);
1692 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1694 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1696 wh = (struct ieee80211_hdr *) skb->data;
1698 /* Mark descriptor as unused */
1699 tx_desc->pkt_phys_addr = 0;
1700 tx_desc->pkt_len = 0;
1702 info = IEEE80211_SKB_CB(skb);
1703 if (ieee80211_is_data(wh->frame_control)) {
1705 sta = ieee80211_find_sta_by_ifaddr(hw, wh->addr1,
1708 sta_info = MWL8K_STA(sta);
1709 BUG_ON(sta_info == NULL);
1710 rate_info = le16_to_cpu(tx_desc->rate_info);
1711 /* If rate is < 6.5 Mpbs for an ht station
1712 * do not form an ampdu. If the station is a
1713 * legacy station (format = 0), do not form an
1716 if (RI_RATE_ID_MCS(rate_info) < 1 ||
1717 RI_FORMAT(rate_info) == 0) {
1718 sta_info->is_ampdu_allowed = false;
1720 sta_info->is_ampdu_allowed = true;
1726 ieee80211_tx_info_clear_status(info);
1728 /* Rate control is happening in the firmware.
1729 * Ensure no tx rate is being reported.
1731 info->status.rates[0].idx = -1;
1732 info->status.rates[0].count = 1;
1734 if (MWL8K_TXD_SUCCESS(status))
1735 info->flags |= IEEE80211_TX_STAT_ACK;
1737 ieee80211_tx_status_irqsafe(hw, skb);
1745 /* must be called only when the card's transmit is completely halted */
1746 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1748 struct mwl8k_priv *priv = hw->priv;
1749 struct mwl8k_tx_queue *txq = priv->txq + index;
1751 if (txq->txd == NULL)
1754 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1759 pci_free_consistent(priv->pdev,
1760 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1761 txq->txd, txq->txd_dma);
1765 /* caller must hold priv->stream_lock when calling the stream functions */
1766 static struct mwl8k_ampdu_stream *
1767 mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid)
1769 struct mwl8k_ampdu_stream *stream;
1770 struct mwl8k_priv *priv = hw->priv;
1773 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1774 stream = &priv->ampdu[i];
1775 if (stream->state == AMPDU_NO_STREAM) {
1777 stream->state = AMPDU_STREAM_NEW;
1780 wiphy_debug(hw->wiphy, "Added a new stream for %pM %d",
1789 mwl8k_start_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1793 /* if the stream has already been started, don't start it again */
1794 if (stream->state != AMPDU_STREAM_NEW)
1796 ret = ieee80211_start_tx_ba_session(stream->sta, stream->tid, 0);
1798 wiphy_debug(hw->wiphy, "Failed to start stream for %pM %d: "
1799 "%d\n", stream->sta->addr, stream->tid, ret);
1801 wiphy_debug(hw->wiphy, "Started stream for %pM %d\n",
1802 stream->sta->addr, stream->tid);
1807 mwl8k_remove_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1809 wiphy_debug(hw->wiphy, "Remove stream for %pM %d\n", stream->sta->addr,
1811 memset(stream, 0, sizeof(*stream));
1814 static struct mwl8k_ampdu_stream *
1815 mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid)
1817 struct mwl8k_priv *priv = hw->priv;
1820 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1821 struct mwl8k_ampdu_stream *stream;
1822 stream = &priv->ampdu[i];
1823 if (stream->state == AMPDU_NO_STREAM)
1825 if (!memcmp(stream->sta->addr, addr, ETH_ALEN) &&
1832 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1833 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta *sta, u8 tid)
1835 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1836 struct tx_traffic_info *tx_stats;
1838 BUG_ON(tid >= MWL8K_MAX_TID);
1839 tx_stats = &sta_info->tx_stats[tid];
1841 return sta_info->is_ampdu_allowed &&
1842 tx_stats->pkts > MWL8K_AMPDU_PACKET_THRESHOLD;
1845 static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
1847 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1848 struct tx_traffic_info *tx_stats;
1850 BUG_ON(tid >= MWL8K_MAX_TID);
1851 tx_stats = &sta_info->tx_stats[tid];
1853 if (tx_stats->start_time == 0)
1854 tx_stats->start_time = jiffies;
1856 /* reset the packet count after each second elapses. If the number of
1857 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1858 * an ampdu stream to be started.
1860 if (jiffies - tx_stats->start_time > HZ) {
1862 tx_stats->start_time = 0;
1867 /* The hardware ampdu queues start from 5.
1868 * txpriorities for ampdu queues are
1869 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1870 * and queue 3 is lowest (queue 4 is reserved)
1875 mwl8k_txq_xmit(struct ieee80211_hw *hw,
1877 struct ieee80211_sta *sta,
1878 struct sk_buff *skb)
1880 struct mwl8k_priv *priv = hw->priv;
1881 struct ieee80211_tx_info *tx_info;
1882 struct mwl8k_vif *mwl8k_vif;
1883 struct ieee80211_hdr *wh;
1884 struct mwl8k_tx_queue *txq;
1885 struct mwl8k_tx_desc *tx;
1892 struct mwl8k_ampdu_stream *stream = NULL;
1893 bool start_ba_session = false;
1894 bool mgmtframe = false;
1895 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1896 bool eapol_frame = false;
1898 wh = (struct ieee80211_hdr *)skb->data;
1899 if (ieee80211_is_data_qos(wh->frame_control))
1900 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1904 if (skb->protocol == cpu_to_be16(ETH_P_PAE))
1907 if (ieee80211_is_mgmt(wh->frame_control))
1911 mwl8k_encapsulate_tx_frame(priv, skb);
1913 mwl8k_add_dma_header(priv, skb, 0, 0);
1915 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1917 tx_info = IEEE80211_SKB_CB(skb);
1918 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1920 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1921 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1922 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1923 mwl8k_vif->seqno += 0x10;
1926 /* Setup firmware control bit fields for each frame type. */
1929 if (ieee80211_is_mgmt(wh->frame_control) ||
1930 ieee80211_is_ctl(wh->frame_control)) {
1932 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1933 } else if (ieee80211_is_data(wh->frame_control)) {
1935 if (is_multicast_ether_addr(wh->addr1))
1936 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1938 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1939 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1940 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1942 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1945 /* Queue ADDBA request in the respective data queue. While setting up
1946 * the ampdu stream, mac80211 queues further packets for that
1947 * particular ra/tid pair. However, packets piled up in the hardware
1948 * for that ra/tid pair will still go out. ADDBA request and the
1949 * related data packets going out from different queues asynchronously
1950 * will cause a shift in the receiver window which might result in
1951 * ampdu packets getting dropped at the receiver after the stream has
1954 if (unlikely(ieee80211_is_action(wh->frame_control) &&
1955 mgmt->u.action.category == WLAN_CATEGORY_BACK &&
1956 mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ &&
1958 u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1959 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1960 index = mwl8k_tid_queue_mapping(tid);
1965 if (priv->ap_fw && sta && sta->ht_cap.ht_supported && !eapol_frame &&
1966 ieee80211_is_data_qos(wh->frame_control)) {
1968 mwl8k_tx_count_packet(sta, tid);
1969 spin_lock(&priv->stream_lock);
1970 stream = mwl8k_lookup_stream(hw, sta->addr, tid);
1971 if (stream != NULL) {
1972 if (stream->state == AMPDU_STREAM_ACTIVE) {
1973 WARN_ON(!(qos & MWL8K_QOS_ACK_POLICY_BLOCKACK));
1974 txpriority = (BA_QUEUE + stream->idx) %
1976 if (stream->idx <= 1)
1977 index = stream->idx +
1978 MWL8K_TX_WMM_QUEUES;
1980 } else if (stream->state == AMPDU_STREAM_NEW) {
1981 /* We get here if the driver sends us packets
1982 * after we've initiated a stream, but before
1983 * our ampdu_action routine has been called
1984 * with IEEE80211_AMPDU_TX_START to get the SSN
1985 * for the ADDBA request. So this packet can
1986 * go out with no risk of sequence number
1987 * mismatch. No special handling is required.
1990 /* Drop packets that would go out after the
1991 * ADDBA request was sent but before the ADDBA
1992 * response is received. If we don't do this,
1993 * the recipient would probably receive it
1994 * after the ADDBA request with SSN 0. This
1995 * will cause the recipient's BA receive window
1996 * to shift, which would cause the subsequent
1997 * packets in the BA stream to be discarded.
1998 * mac80211 queues our packets for us in this
1999 * case, so this is really just a safety check.
2001 wiphy_warn(hw->wiphy,
2002 "Cannot send packet while ADDBA "
2003 "dialog is underway.\n");
2004 spin_unlock(&priv->stream_lock);
2009 /* Defer calling mwl8k_start_stream so that the current
2010 * skb can go out before the ADDBA request. This
2011 * prevents sequence number mismatch at the recepient
2012 * as described above.
2014 if (mwl8k_ampdu_allowed(sta, tid)) {
2015 stream = mwl8k_add_stream(hw, sta, tid);
2017 start_ba_session = true;
2020 spin_unlock(&priv->stream_lock);
2022 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
2023 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
2026 dma = pci_map_single(priv->pdev, skb->data,
2027 skb->len, PCI_DMA_TODEVICE);
2029 if (pci_dma_mapping_error(priv->pdev, dma)) {
2030 wiphy_debug(hw->wiphy,
2031 "failed to dma map skb, dropping TX frame.\n");
2032 if (start_ba_session) {
2033 spin_lock(&priv->stream_lock);
2034 mwl8k_remove_stream(hw, stream);
2035 spin_unlock(&priv->stream_lock);
2041 spin_lock_bh(&priv->tx_lock);
2043 txq = priv->txq + index;
2045 /* Mgmt frames that go out frequently are probe
2046 * responses. Other mgmt frames got out relatively
2047 * infrequently. Hence reserve 2 buffers so that
2048 * other mgmt frames do not get dropped due to an
2049 * already queued probe response in one of the
2053 if (txq->len >= MWL8K_TX_DESCS - 2) {
2054 if (!mgmtframe || txq->len == MWL8K_TX_DESCS) {
2055 if (start_ba_session) {
2056 spin_lock(&priv->stream_lock);
2057 mwl8k_remove_stream(hw, stream);
2058 spin_unlock(&priv->stream_lock);
2060 spin_unlock_bh(&priv->tx_lock);
2061 pci_unmap_single(priv->pdev, dma, skb->len,
2068 BUG_ON(txq->skb[txq->tail] != NULL);
2069 txq->skb[txq->tail] = skb;
2071 tx = txq->txd + txq->tail;
2072 tx->data_rate = txdatarate;
2073 tx->tx_priority = txpriority;
2074 tx->qos_control = cpu_to_le16(qos);
2075 tx->pkt_phys_addr = cpu_to_le32(dma);
2076 tx->pkt_len = cpu_to_le16(skb->len);
2078 if (!priv->ap_fw && sta != NULL)
2079 tx->peer_id = MWL8K_STA(sta)->peer_id;
2083 if (priv->ap_fw && ieee80211_is_data(wh->frame_control) && !eapol_frame)
2084 tx->timestamp = cpu_to_le32(ioread32(priv->regs +
2085 MWL8K_HW_TIMER_REGISTER));
2090 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
2093 priv->pending_tx_pkts++;
2096 if (txq->tail == MWL8K_TX_DESCS)
2099 mwl8k_tx_start(priv);
2101 spin_unlock_bh(&priv->tx_lock);
2103 /* Initiate the ampdu session here */
2104 if (start_ba_session) {
2105 spin_lock(&priv->stream_lock);
2106 if (mwl8k_start_stream(hw, stream))
2107 mwl8k_remove_stream(hw, stream);
2108 spin_unlock(&priv->stream_lock);
2116 * We have the following requirements for issuing firmware commands:
2117 * - Some commands require that the packet transmit path is idle when
2118 * the command is issued. (For simplicity, we'll just quiesce the
2119 * transmit path for every command.)
2120 * - There are certain sequences of commands that need to be issued to
2121 * the hardware sequentially, with no other intervening commands.
2123 * This leads to an implementation of a "firmware lock" as a mutex that
2124 * can be taken recursively, and which is taken by both the low-level
2125 * command submission function (mwl8k_post_cmd) as well as any users of
2126 * that function that require issuing of an atomic sequence of commands,
2127 * and quiesces the transmit path whenever it's taken.
2129 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
2131 struct mwl8k_priv *priv = hw->priv;
2133 if (priv->fw_mutex_owner != current) {
2136 mutex_lock(&priv->fw_mutex);
2137 ieee80211_stop_queues(hw);
2139 rc = mwl8k_tx_wait_empty(hw);
2141 if (!priv->hw_restart_in_progress)
2142 ieee80211_wake_queues(hw);
2144 mutex_unlock(&priv->fw_mutex);
2149 priv->fw_mutex_owner = current;
2152 priv->fw_mutex_depth++;
2157 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
2159 struct mwl8k_priv *priv = hw->priv;
2161 if (!--priv->fw_mutex_depth) {
2162 if (!priv->hw_restart_in_progress)
2163 ieee80211_wake_queues(hw);
2165 priv->fw_mutex_owner = NULL;
2166 mutex_unlock(&priv->fw_mutex);
2170 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable,
2174 * Command processing.
2177 /* Timeout firmware commands after 10s */
2178 #define MWL8K_CMD_TIMEOUT_MS 10000
2180 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
2182 DECLARE_COMPLETION_ONSTACK(cmd_wait);
2183 struct mwl8k_priv *priv = hw->priv;
2184 void __iomem *regs = priv->regs;
2185 dma_addr_t dma_addr;
2186 unsigned int dma_size;
2188 unsigned long timeout = 0;
2192 wiphy_dbg(hw->wiphy, "Posting %s [%d]\n",
2193 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), cmd->macid);
2195 /* Before posting firmware commands that could change the hardware
2196 * characteristics, make sure that all BSSes are stopped temporary.
2197 * Enable these stopped BSSes after completion of the commands
2200 rc = mwl8k_fw_lock(hw);
2204 if (priv->ap_fw && priv->running_bsses) {
2205 switch (le16_to_cpu(cmd->code)) {
2206 case MWL8K_CMD_SET_RF_CHANNEL:
2207 case MWL8K_CMD_RADIO_CONTROL:
2208 case MWL8K_CMD_RF_TX_POWER:
2209 case MWL8K_CMD_TX_POWER:
2210 case MWL8K_CMD_RF_ANTENNA:
2211 case MWL8K_CMD_RTS_THRESHOLD:
2212 case MWL8K_CMD_MIMO_CONFIG:
2213 bitmap = priv->running_bsses;
2214 mwl8k_enable_bsses(hw, false, bitmap);
2219 cmd->result = (__force __le16) 0xffff;
2220 dma_size = le16_to_cpu(cmd->length);
2221 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
2222 PCI_DMA_BIDIRECTIONAL);
2223 if (pci_dma_mapping_error(priv->pdev, dma_addr))
2226 priv->hostcmd_wait = &cmd_wait;
2227 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
2228 iowrite32(MWL8K_H2A_INT_DOORBELL,
2229 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2230 iowrite32(MWL8K_H2A_INT_DUMMY,
2231 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2233 timeout = wait_for_completion_timeout(&cmd_wait,
2234 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
2236 priv->hostcmd_wait = NULL;
2239 pci_unmap_single(priv->pdev, dma_addr, dma_size,
2240 PCI_DMA_BIDIRECTIONAL);
2243 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
2244 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2245 MWL8K_CMD_TIMEOUT_MS);
2250 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
2252 rc = cmd->result ? -EINVAL : 0;
2254 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
2255 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2256 le16_to_cpu(cmd->result));
2258 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
2259 mwl8k_cmd_name(cmd->code,
2265 mwl8k_enable_bsses(hw, true, bitmap);
2267 mwl8k_fw_unlock(hw);
2272 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
2273 struct ieee80211_vif *vif,
2274 struct mwl8k_cmd_pkt *cmd)
2277 cmd->macid = MWL8K_VIF(vif)->macid;
2278 return mwl8k_post_cmd(hw, cmd);
2282 * Setup code shared between STA and AP firmware images.
2284 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
2286 struct mwl8k_priv *priv = hw->priv;
2288 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
2289 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
2291 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
2292 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
2294 priv->band_24.band = IEEE80211_BAND_2GHZ;
2295 priv->band_24.channels = priv->channels_24;
2296 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
2297 priv->band_24.bitrates = priv->rates_24;
2298 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
2300 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
2303 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
2305 struct mwl8k_priv *priv = hw->priv;
2307 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
2308 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
2310 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
2311 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
2313 priv->band_50.band = IEEE80211_BAND_5GHZ;
2314 priv->band_50.channels = priv->channels_50;
2315 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
2316 priv->band_50.bitrates = priv->rates_50;
2317 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
2319 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
2323 * CMD_GET_HW_SPEC (STA version).
2325 struct mwl8k_cmd_get_hw_spec_sta {
2326 struct mwl8k_cmd_pkt header;
2328 __u8 host_interface;
2330 __u8 perm_addr[ETH_ALEN];
2335 __u8 mcs_bitmap[16];
2336 __le32 rx_queue_ptr;
2337 __le32 num_tx_queues;
2338 __le32 tx_queue_ptrs[MWL8K_TX_WMM_QUEUES];
2340 __le32 num_tx_desc_per_queue;
2344 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2345 #define MWL8K_CAP_GREENFIELD 0x08000000
2346 #define MWL8K_CAP_AMPDU 0x04000000
2347 #define MWL8K_CAP_RX_STBC 0x01000000
2348 #define MWL8K_CAP_TX_STBC 0x00800000
2349 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2350 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2351 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2352 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2353 #define MWL8K_CAP_DELAY_BA 0x00003000
2354 #define MWL8K_CAP_MIMO 0x00000200
2355 #define MWL8K_CAP_40MHZ 0x00000100
2356 #define MWL8K_CAP_BAND_MASK 0x00000007
2357 #define MWL8K_CAP_5GHZ 0x00000004
2358 #define MWL8K_CAP_2GHZ4 0x00000001
2361 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
2362 struct ieee80211_supported_band *band, u32 cap)
2367 band->ht_cap.ht_supported = 1;
2369 if (cap & MWL8K_CAP_MAX_AMSDU)
2370 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
2371 if (cap & MWL8K_CAP_GREENFIELD)
2372 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
2373 if (cap & MWL8K_CAP_AMPDU) {
2374 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
2375 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2376 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2378 if (cap & MWL8K_CAP_RX_STBC)
2379 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
2380 if (cap & MWL8K_CAP_TX_STBC)
2381 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
2382 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
2383 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
2384 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
2385 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
2386 if (cap & MWL8K_CAP_DELAY_BA)
2387 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
2388 if (cap & MWL8K_CAP_40MHZ)
2389 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2391 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
2392 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
2394 band->ht_cap.mcs.rx_mask[0] = 0xff;
2395 if (rx_streams >= 2)
2396 band->ht_cap.mcs.rx_mask[1] = 0xff;
2397 if (rx_streams >= 3)
2398 band->ht_cap.mcs.rx_mask[2] = 0xff;
2399 band->ht_cap.mcs.rx_mask[4] = 0x01;
2400 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2402 if (rx_streams != tx_streams) {
2403 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
2404 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
2405 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
2410 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
2412 struct mwl8k_priv *priv = hw->priv;
2417 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
2418 mwl8k_setup_2ghz_band(hw);
2419 if (caps & MWL8K_CAP_MIMO)
2420 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
2423 if (caps & MWL8K_CAP_5GHZ) {
2424 mwl8k_setup_5ghz_band(hw);
2425 if (caps & MWL8K_CAP_MIMO)
2426 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
2432 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
2434 struct mwl8k_priv *priv = hw->priv;
2435 struct mwl8k_cmd_get_hw_spec_sta *cmd;
2439 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2443 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2444 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2446 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2447 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2448 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2449 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2450 for (i = 0; i < mwl8k_tx_queues(priv); i++)
2451 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
2452 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2453 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2455 rc = mwl8k_post_cmd(hw, &cmd->header);
2458 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2459 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2460 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2461 priv->hw_rev = cmd->hw_rev;
2462 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2463 priv->ap_macids_supported = 0x00000000;
2464 priv->sta_macids_supported = 0x00000001;
2472 * CMD_GET_HW_SPEC (AP version).
2474 struct mwl8k_cmd_get_hw_spec_ap {
2475 struct mwl8k_cmd_pkt header;
2477 __u8 host_interface;
2480 __u8 perm_addr[ETH_ALEN];
2491 __le32 fw_api_version;
2493 __le32 num_of_ampdu_queues;
2494 __le32 wcbbase_ampdu[MWL8K_MAX_AMPDU_QUEUES];
2497 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2499 struct mwl8k_priv *priv = hw->priv;
2500 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2504 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2508 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2509 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2511 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2512 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2514 rc = mwl8k_post_cmd(hw, &cmd->header);
2519 api_version = le32_to_cpu(cmd->fw_api_version);
2520 if (priv->device_info->fw_api_ap != api_version) {
2521 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2522 " Expected %d got %d.\n", MWL8K_NAME,
2523 priv->device_info->part_name,
2524 priv->device_info->fw_api_ap,
2529 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2530 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2531 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2532 priv->hw_rev = cmd->hw_rev;
2533 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2534 priv->ap_macids_supported = 0x000000ff;
2535 priv->sta_macids_supported = 0x00000100;
2536 priv->num_ampdu_queues = le32_to_cpu(cmd->num_of_ampdu_queues);
2537 if (priv->num_ampdu_queues > MWL8K_MAX_AMPDU_QUEUES) {
2538 wiphy_warn(hw->wiphy, "fw reported %d ampdu queues"
2539 " but we only support %d.\n",
2540 priv->num_ampdu_queues,
2541 MWL8K_MAX_AMPDU_QUEUES);
2542 priv->num_ampdu_queues = MWL8K_MAX_AMPDU_QUEUES;
2544 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2545 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2547 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2548 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2550 priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2551 priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2552 priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2553 priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2555 for (i = 0; i < priv->num_ampdu_queues; i++)
2556 priv->txq_offset[i + MWL8K_TX_WMM_QUEUES] =
2557 le32_to_cpu(cmd->wcbbase_ampdu[i]) & 0xffff;
2568 struct mwl8k_cmd_set_hw_spec {
2569 struct mwl8k_cmd_pkt header;
2571 __u8 host_interface;
2573 __u8 perm_addr[ETH_ALEN];
2578 __le32 rx_queue_ptr;
2579 __le32 num_tx_queues;
2580 __le32 tx_queue_ptrs[MWL8K_MAX_TX_QUEUES];
2582 __le32 num_tx_desc_per_queue;
2586 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2587 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2588 * the packets that are queued for more than 500ms, will be dropped in the
2589 * hardware. This helps minimizing the issues caused due to head-of-line
2590 * blocking where a slow client can hog the bandwidth and affect traffic to a
2593 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2594 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2595 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2596 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2597 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2599 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2601 struct mwl8k_priv *priv = hw->priv;
2602 struct mwl8k_cmd_set_hw_spec *cmd;
2606 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2610 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2611 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2613 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2614 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2615 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2618 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2619 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2620 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2621 * priority is interpreted the right way in firmware.
2623 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
2624 int j = mwl8k_tx_queues(priv) - 1 - i;
2625 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2628 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2629 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2630 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON |
2631 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY |
2632 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR);
2633 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2634 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2636 rc = mwl8k_post_cmd(hw, &cmd->header);
2643 * CMD_MAC_MULTICAST_ADR.
2645 struct mwl8k_cmd_mac_multicast_adr {
2646 struct mwl8k_cmd_pkt header;
2649 __u8 addr[0][ETH_ALEN];
2652 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2653 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2654 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2655 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2657 static struct mwl8k_cmd_pkt *
2658 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2659 struct netdev_hw_addr_list *mc_list)
2661 struct mwl8k_priv *priv = hw->priv;
2662 struct mwl8k_cmd_mac_multicast_adr *cmd;
2667 mc_count = netdev_hw_addr_list_count(mc_list);
2669 if (allmulti || mc_count > priv->num_mcaddrs) {
2674 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2676 cmd = kzalloc(size, GFP_ATOMIC);
2680 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2681 cmd->header.length = cpu_to_le16(size);
2682 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2683 MWL8K_ENABLE_RX_BROADCAST);
2686 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2687 } else if (mc_count) {
2688 struct netdev_hw_addr *ha;
2691 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2692 cmd->numaddr = cpu_to_le16(mc_count);
2693 netdev_hw_addr_list_for_each(ha, mc_list) {
2694 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2698 return &cmd->header;
2704 struct mwl8k_cmd_get_stat {
2705 struct mwl8k_cmd_pkt header;
2709 #define MWL8K_STAT_ACK_FAILURE 9
2710 #define MWL8K_STAT_RTS_FAILURE 12
2711 #define MWL8K_STAT_FCS_ERROR 24
2712 #define MWL8K_STAT_RTS_SUCCESS 11
2714 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2715 struct ieee80211_low_level_stats *stats)
2717 struct mwl8k_cmd_get_stat *cmd;
2720 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2724 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2725 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2727 rc = mwl8k_post_cmd(hw, &cmd->header);
2729 stats->dot11ACKFailureCount =
2730 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2731 stats->dot11RTSFailureCount =
2732 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2733 stats->dot11FCSErrorCount =
2734 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2735 stats->dot11RTSSuccessCount =
2736 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2744 * CMD_RADIO_CONTROL.
2746 struct mwl8k_cmd_radio_control {
2747 struct mwl8k_cmd_pkt header;
2754 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2756 struct mwl8k_priv *priv = hw->priv;
2757 struct mwl8k_cmd_radio_control *cmd;
2760 if (enable == priv->radio_on && !force)
2763 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2767 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2768 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2769 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2770 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2771 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2773 rc = mwl8k_post_cmd(hw, &cmd->header);
2777 priv->radio_on = enable;
2782 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2784 return mwl8k_cmd_radio_control(hw, 0, 0);
2787 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2789 return mwl8k_cmd_radio_control(hw, 1, 0);
2793 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2795 struct mwl8k_priv *priv = hw->priv;
2797 priv->radio_short_preamble = short_preamble;
2799 return mwl8k_cmd_radio_control(hw, 1, 1);
2805 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2807 struct mwl8k_cmd_rf_tx_power {
2808 struct mwl8k_cmd_pkt header;
2810 __le16 support_level;
2811 __le16 current_level;
2813 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2816 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2818 struct mwl8k_cmd_rf_tx_power *cmd;
2821 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2825 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2826 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2827 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2828 cmd->support_level = cpu_to_le16(dBm);
2830 rc = mwl8k_post_cmd(hw, &cmd->header);
2839 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2841 struct mwl8k_cmd_tx_power {
2842 struct mwl8k_cmd_pkt header;
2848 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2851 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2852 struct ieee80211_conf *conf,
2855 struct ieee80211_channel *channel = conf->channel;
2856 struct mwl8k_cmd_tx_power *cmd;
2860 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2864 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2865 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2866 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2868 if (channel->band == IEEE80211_BAND_2GHZ)
2869 cmd->band = cpu_to_le16(0x1);
2870 else if (channel->band == IEEE80211_BAND_5GHZ)
2871 cmd->band = cpu_to_le16(0x4);
2873 cmd->channel = cpu_to_le16(channel->hw_value);
2875 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2876 conf->channel_type == NL80211_CHAN_HT20) {
2877 cmd->bw = cpu_to_le16(0x2);
2879 cmd->bw = cpu_to_le16(0x4);
2880 if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2881 cmd->sub_ch = cpu_to_le16(0x3);
2882 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2883 cmd->sub_ch = cpu_to_le16(0x1);
2886 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2887 cmd->power_level_list[i] = cpu_to_le16(pwr);
2889 rc = mwl8k_post_cmd(hw, &cmd->header);
2898 struct mwl8k_cmd_rf_antenna {
2899 struct mwl8k_cmd_pkt header;
2904 #define MWL8K_RF_ANTENNA_RX 1
2905 #define MWL8K_RF_ANTENNA_TX 2
2908 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2910 struct mwl8k_cmd_rf_antenna *cmd;
2913 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2917 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2918 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2919 cmd->antenna = cpu_to_le16(antenna);
2920 cmd->mode = cpu_to_le16(mask);
2922 rc = mwl8k_post_cmd(hw, &cmd->header);
2931 struct mwl8k_cmd_set_beacon {
2932 struct mwl8k_cmd_pkt header;
2937 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2938 struct ieee80211_vif *vif, u8 *beacon, int len)
2940 struct mwl8k_cmd_set_beacon *cmd;
2943 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2947 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2948 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2949 cmd->beacon_len = cpu_to_le16(len);
2950 memcpy(cmd->beacon, beacon, len);
2952 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2961 struct mwl8k_cmd_set_pre_scan {
2962 struct mwl8k_cmd_pkt header;
2965 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2967 struct mwl8k_cmd_set_pre_scan *cmd;
2970 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2974 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2975 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2977 rc = mwl8k_post_cmd(hw, &cmd->header);
2984 * CMD_SET_POST_SCAN.
2986 struct mwl8k_cmd_set_post_scan {
2987 struct mwl8k_cmd_pkt header;
2989 __u8 bssid[ETH_ALEN];
2993 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
2995 struct mwl8k_cmd_set_post_scan *cmd;
2998 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3002 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
3003 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3005 memcpy(cmd->bssid, mac, ETH_ALEN);
3007 rc = mwl8k_post_cmd(hw, &cmd->header);
3014 * CMD_SET_RF_CHANNEL.
3016 struct mwl8k_cmd_set_rf_channel {
3017 struct mwl8k_cmd_pkt header;
3019 __u8 current_channel;
3020 __le32 channel_flags;
3023 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
3024 struct ieee80211_conf *conf)
3026 struct ieee80211_channel *channel = conf->channel;
3027 struct mwl8k_cmd_set_rf_channel *cmd;
3030 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3034 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
3035 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3036 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3037 cmd->current_channel = channel->hw_value;
3039 if (channel->band == IEEE80211_BAND_2GHZ)
3040 cmd->channel_flags |= cpu_to_le32(0x00000001);
3041 else if (channel->band == IEEE80211_BAND_5GHZ)
3042 cmd->channel_flags |= cpu_to_le32(0x00000004);
3044 if (conf->channel_type == NL80211_CHAN_NO_HT ||
3045 conf->channel_type == NL80211_CHAN_HT20)
3046 cmd->channel_flags |= cpu_to_le32(0x00000080);
3047 else if (conf->channel_type == NL80211_CHAN_HT40MINUS)
3048 cmd->channel_flags |= cpu_to_le32(0x000001900);
3049 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
3050 cmd->channel_flags |= cpu_to_le32(0x000000900);
3052 rc = mwl8k_post_cmd(hw, &cmd->header);
3061 #define MWL8K_FRAME_PROT_DISABLED 0x00
3062 #define MWL8K_FRAME_PROT_11G 0x07
3063 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3064 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3066 struct mwl8k_cmd_update_set_aid {
3067 struct mwl8k_cmd_pkt header;
3070 /* AP's MAC address (BSSID) */
3071 __u8 bssid[ETH_ALEN];
3072 __le16 protection_mode;
3073 __u8 supp_rates[14];
3076 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
3082 * Clear nonstandard rates 4 and 13.
3086 for (i = 0, j = 0; i < 14; i++) {
3087 if (mask & (1 << i))
3088 rates[j++] = mwl8k_rates_24[i].hw_value;
3093 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
3094 struct ieee80211_vif *vif, u32 legacy_rate_mask)
3096 struct mwl8k_cmd_update_set_aid *cmd;
3100 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3104 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
3105 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3106 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
3107 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
3109 if (vif->bss_conf.use_cts_prot) {
3110 prot_mode = MWL8K_FRAME_PROT_11G;
3112 switch (vif->bss_conf.ht_operation_mode &
3113 IEEE80211_HT_OP_MODE_PROTECTION) {
3114 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
3115 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
3117 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
3118 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
3121 prot_mode = MWL8K_FRAME_PROT_DISABLED;
3125 cmd->protection_mode = cpu_to_le16(prot_mode);
3127 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
3129 rc = mwl8k_post_cmd(hw, &cmd->header);
3138 struct mwl8k_cmd_set_rate {
3139 struct mwl8k_cmd_pkt header;
3140 __u8 legacy_rates[14];
3142 /* Bitmap for supported MCS codes. */
3148 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3149 u32 legacy_rate_mask, u8 *mcs_rates)
3151 struct mwl8k_cmd_set_rate *cmd;
3154 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3158 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
3159 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3160 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
3161 memcpy(cmd->mcs_set, mcs_rates, 16);
3163 rc = mwl8k_post_cmd(hw, &cmd->header);
3170 * CMD_FINALIZE_JOIN.
3172 #define MWL8K_FJ_BEACON_MAXLEN 128
3174 struct mwl8k_cmd_finalize_join {
3175 struct mwl8k_cmd_pkt header;
3176 __le32 sleep_interval; /* Number of beacon periods to sleep */
3177 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
3180 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
3181 int framelen, int dtim)
3183 struct mwl8k_cmd_finalize_join *cmd;
3184 struct ieee80211_mgmt *payload = frame;
3188 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3192 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
3193 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3194 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
3196 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
3197 if (payload_len < 0)
3199 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
3200 payload_len = MWL8K_FJ_BEACON_MAXLEN;
3202 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
3204 rc = mwl8k_post_cmd(hw, &cmd->header);
3211 * CMD_SET_RTS_THRESHOLD.
3213 struct mwl8k_cmd_set_rts_threshold {
3214 struct mwl8k_cmd_pkt header;
3220 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
3222 struct mwl8k_cmd_set_rts_threshold *cmd;
3225 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3229 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
3230 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3231 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3232 cmd->threshold = cpu_to_le16(rts_thresh);
3234 rc = mwl8k_post_cmd(hw, &cmd->header);
3243 struct mwl8k_cmd_set_slot {
3244 struct mwl8k_cmd_pkt header;
3249 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
3251 struct mwl8k_cmd_set_slot *cmd;
3254 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3258 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
3259 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3260 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3261 cmd->short_slot = short_slot_time;
3263 rc = mwl8k_post_cmd(hw, &cmd->header);
3270 * CMD_SET_EDCA_PARAMS.
3272 struct mwl8k_cmd_set_edca_params {
3273 struct mwl8k_cmd_pkt header;
3275 /* See MWL8K_SET_EDCA_XXX below */
3278 /* TX opportunity in units of 32 us */
3283 /* Log exponent of max contention period: 0...15 */
3286 /* Log exponent of min contention period: 0...15 */
3289 /* Adaptive interframe spacing in units of 32us */
3292 /* TX queue to configure */
3296 /* Log exponent of max contention period: 0...15 */
3299 /* Log exponent of min contention period: 0...15 */
3302 /* Adaptive interframe spacing in units of 32us */
3305 /* TX queue to configure */
3311 #define MWL8K_SET_EDCA_CW 0x01
3312 #define MWL8K_SET_EDCA_TXOP 0x02
3313 #define MWL8K_SET_EDCA_AIFS 0x04
3315 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3316 MWL8K_SET_EDCA_TXOP | \
3317 MWL8K_SET_EDCA_AIFS)
3320 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
3321 __u16 cw_min, __u16 cw_max,
3322 __u8 aifs, __u16 txop)
3324 struct mwl8k_priv *priv = hw->priv;
3325 struct mwl8k_cmd_set_edca_params *cmd;
3328 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3332 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
3333 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3334 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
3335 cmd->txop = cpu_to_le16(txop);
3337 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
3338 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
3339 cmd->ap.aifs = aifs;
3342 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
3343 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
3344 cmd->sta.aifs = aifs;
3345 cmd->sta.txq = qnum;
3348 rc = mwl8k_post_cmd(hw, &cmd->header);
3357 struct mwl8k_cmd_set_wmm_mode {
3358 struct mwl8k_cmd_pkt header;
3362 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
3364 struct mwl8k_priv *priv = hw->priv;
3365 struct mwl8k_cmd_set_wmm_mode *cmd;
3368 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3372 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
3373 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3374 cmd->action = cpu_to_le16(!!enable);
3376 rc = mwl8k_post_cmd(hw, &cmd->header);
3380 priv->wmm_enabled = enable;
3388 struct mwl8k_cmd_mimo_config {
3389 struct mwl8k_cmd_pkt header;
3391 __u8 rx_antenna_map;
3392 __u8 tx_antenna_map;
3395 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
3397 struct mwl8k_cmd_mimo_config *cmd;
3400 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3404 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
3405 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3406 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
3407 cmd->rx_antenna_map = rx;
3408 cmd->tx_antenna_map = tx;
3410 rc = mwl8k_post_cmd(hw, &cmd->header);
3417 * CMD_USE_FIXED_RATE (STA version).
3419 struct mwl8k_cmd_use_fixed_rate_sta {
3420 struct mwl8k_cmd_pkt header;
3422 __le32 allow_rate_drop;
3426 __le32 enable_retry;
3435 #define MWL8K_USE_AUTO_RATE 0x0002
3436 #define MWL8K_UCAST_RATE 0
3438 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
3440 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
3443 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3447 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3448 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3449 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3450 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
3452 rc = mwl8k_post_cmd(hw, &cmd->header);
3459 * CMD_USE_FIXED_RATE (AP version).
3461 struct mwl8k_cmd_use_fixed_rate_ap {
3462 struct mwl8k_cmd_pkt header;
3464 __le32 allow_rate_drop;
3466 struct mwl8k_rate_entry_ap {
3468 __le32 enable_retry;
3473 u8 multicast_rate_type;
3478 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
3480 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
3483 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3487 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3488 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3489 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3490 cmd->multicast_rate = mcast;
3491 cmd->management_rate = mgmt;
3493 rc = mwl8k_post_cmd(hw, &cmd->header);
3500 * CMD_ENABLE_SNIFFER.
3502 struct mwl8k_cmd_enable_sniffer {
3503 struct mwl8k_cmd_pkt header;
3507 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3509 struct mwl8k_cmd_enable_sniffer *cmd;
3512 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3516 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3517 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3518 cmd->action = cpu_to_le32(!!enable);
3520 rc = mwl8k_post_cmd(hw, &cmd->header);
3526 struct mwl8k_cmd_update_mac_addr {
3527 struct mwl8k_cmd_pkt header;
3531 __u8 mac_addr[ETH_ALEN];
3533 __u8 mac_addr[ETH_ALEN];
3537 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3538 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3539 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3540 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3542 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw *hw,
3543 struct ieee80211_vif *vif, u8 *mac, bool set)
3545 struct mwl8k_priv *priv = hw->priv;
3546 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3547 struct mwl8k_cmd_update_mac_addr *cmd;
3551 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3552 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3553 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3555 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3557 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3559 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3560 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3561 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3562 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3564 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3567 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3572 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3574 cmd->header.code = cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR);
3576 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3578 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3579 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3581 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3584 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3591 * MWL8K_CMD_SET_MAC_ADDR.
3593 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3594 struct ieee80211_vif *vif, u8 *mac)
3596 return mwl8k_cmd_update_mac_addr(hw, vif, mac, true);
3600 * MWL8K_CMD_DEL_MAC_ADDR.
3602 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw *hw,
3603 struct ieee80211_vif *vif, u8 *mac)
3605 return mwl8k_cmd_update_mac_addr(hw, vif, mac, false);
3609 * CMD_SET_RATEADAPT_MODE.
3611 struct mwl8k_cmd_set_rate_adapt_mode {
3612 struct mwl8k_cmd_pkt header;
3617 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3619 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3622 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3626 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3627 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3628 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3629 cmd->mode = cpu_to_le16(mode);
3631 rc = mwl8k_post_cmd(hw, &cmd->header);
3638 * CMD_GET_WATCHDOG_BITMAP.
3640 struct mwl8k_cmd_get_watchdog_bitmap {
3641 struct mwl8k_cmd_pkt header;
3645 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw *hw, u8 *bitmap)
3647 struct mwl8k_cmd_get_watchdog_bitmap *cmd;
3650 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3654 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP);
3655 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3657 rc = mwl8k_post_cmd(hw, &cmd->header);
3659 *bitmap = cmd->bitmap;
3666 #define MWL8K_WMM_QUEUE_NUMBER 3
3668 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
3671 static void mwl8k_watchdog_ba_events(struct work_struct *work)
3674 u8 bitmap = 0, stream_index;
3675 struct mwl8k_ampdu_stream *streams;
3676 struct mwl8k_priv *priv =
3677 container_of(work, struct mwl8k_priv, watchdog_ba_handle);
3678 struct ieee80211_hw *hw = priv->hw;
3684 rc = mwl8k_cmd_get_watchdog_bitmap(priv->hw, &bitmap);
3688 spin_lock(&priv->stream_lock);
3690 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3691 for (i = 0; i < TOTAL_HW_TX_QUEUES; i++) {
3692 if (bitmap & (1 << i)) {
3693 stream_index = (i + MWL8K_WMM_QUEUE_NUMBER) %
3695 streams = &priv->ampdu[stream_index];
3696 if (streams->state == AMPDU_STREAM_ACTIVE) {
3697 ieee80211_stop_tx_ba_session(streams->sta,
3699 spin_unlock(&priv->stream_lock);
3700 mwl8k_destroy_ba(hw, stream_index);
3701 spin_lock(&priv->stream_lock);
3706 spin_unlock(&priv->stream_lock);
3708 atomic_dec(&priv->watchdog_event_pending);
3709 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3710 iowrite32((status | MWL8K_A2H_INT_BA_WATCHDOG),
3711 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3712 mwl8k_fw_unlock(hw);
3720 struct mwl8k_cmd_bss_start {
3721 struct mwl8k_cmd_pkt header;
3725 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3726 struct ieee80211_vif *vif, int enable)
3728 struct mwl8k_cmd_bss_start *cmd;
3729 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3730 struct mwl8k_priv *priv = hw->priv;
3733 if (enable && (priv->running_bsses & (1 << mwl8k_vif->macid)))
3736 if (!enable && !(priv->running_bsses & (1 << mwl8k_vif->macid)))
3739 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3743 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3744 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3745 cmd->enable = cpu_to_le32(enable);
3747 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3752 priv->running_bsses |= (1 << mwl8k_vif->macid);
3754 priv->running_bsses &= ~(1 << mwl8k_vif->macid);
3759 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable, u32 bitmap)
3761 struct mwl8k_priv *priv = hw->priv;
3762 struct mwl8k_vif *mwl8k_vif, *tmp_vif;
3763 struct ieee80211_vif *vif;
3765 list_for_each_entry_safe(mwl8k_vif, tmp_vif, &priv->vif_list, list) {
3766 vif = mwl8k_vif->vif;
3768 if (!(bitmap & (1 << mwl8k_vif->macid)))
3771 if (vif->type == NL80211_IFTYPE_AP)
3772 mwl8k_cmd_bss_start(hw, vif, enable);
3780 * UPSTREAM is tx direction
3782 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3783 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3785 enum ba_stream_action_type {
3794 struct mwl8k_create_ba_stream {
3799 u8 peer_mac_addr[6];
3805 u8 reset_seq_no_flag;
3807 u8 sta_src_mac_addr[6];
3810 struct mwl8k_destroy_ba_stream {
3815 struct mwl8k_cmd_bastream {
3816 struct mwl8k_cmd_pkt header;
3819 struct mwl8k_create_ba_stream create_params;
3820 struct mwl8k_destroy_ba_stream destroy_params;
3825 mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3826 struct ieee80211_vif *vif)
3828 struct mwl8k_cmd_bastream *cmd;
3831 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3835 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3836 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3838 cmd->action = cpu_to_le32(MWL8K_BA_CHECK);
3840 cmd->create_params.queue_id = stream->idx;
3841 memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr,
3843 cmd->create_params.tid = stream->tid;
3845 cmd->create_params.flags =
3846 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) |
3847 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM);
3849 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3857 mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3858 u8 buf_size, struct ieee80211_vif *vif)
3860 struct mwl8k_cmd_bastream *cmd;
3863 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3868 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3869 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3871 cmd->action = cpu_to_le32(MWL8K_BA_CREATE);
3873 cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size);
3874 cmd->create_params.window_size = cpu_to_le32((u32)buf_size);
3875 cmd->create_params.queue_id = stream->idx;
3877 memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN);
3878 cmd->create_params.tid = stream->tid;
3879 cmd->create_params.curr_seq_no = cpu_to_le16(0);
3880 cmd->create_params.reset_seq_no_flag = 1;
3882 cmd->create_params.param_info =
3883 (stream->sta->ht_cap.ampdu_factor &
3884 IEEE80211_HT_AMPDU_PARM_FACTOR) |
3885 ((stream->sta->ht_cap.ampdu_density << 2) &
3886 IEEE80211_HT_AMPDU_PARM_DENSITY);
3888 cmd->create_params.flags =
3889 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE |
3890 BASTREAM_FLAG_DIRECTION_UPSTREAM);
3892 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3894 wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n",
3895 stream->sta->addr, stream->tid);
3901 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
3904 struct mwl8k_cmd_bastream *cmd;
3906 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3910 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3911 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3912 cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
3914 cmd->destroy_params.ba_context = cpu_to_le32(idx);
3915 mwl8k_post_cmd(hw, &cmd->header);
3917 wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", idx);
3925 struct mwl8k_cmd_set_new_stn {
3926 struct mwl8k_cmd_pkt header;
3932 __le32 legacy_rates;
3935 __le16 ht_capabilities_info;
3936 __u8 mac_ht_param_info;
3938 __u8 control_channel;
3947 #define MWL8K_STA_ACTION_ADD 0
3948 #define MWL8K_STA_ACTION_REMOVE 2
3950 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
3951 struct ieee80211_vif *vif,
3952 struct ieee80211_sta *sta)
3954 struct mwl8k_cmd_set_new_stn *cmd;
3958 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3962 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3963 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3964 cmd->aid = cpu_to_le16(sta->aid);
3965 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
3966 cmd->stn_id = cpu_to_le16(sta->aid);
3967 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
3968 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3969 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3971 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3972 cmd->legacy_rates = cpu_to_le32(rates);
3973 if (sta->ht_cap.ht_supported) {
3974 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
3975 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
3976 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
3977 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
3978 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
3979 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
3980 ((sta->ht_cap.ampdu_density & 7) << 2);
3981 cmd->is_qos_sta = 1;
3984 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3990 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
3991 struct ieee80211_vif *vif)
3993 struct mwl8k_cmd_set_new_stn *cmd;
3996 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4000 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4001 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4002 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
4004 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4010 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
4011 struct ieee80211_vif *vif, u8 *addr)
4013 struct mwl8k_cmd_set_new_stn *cmd;
4014 struct mwl8k_priv *priv = hw->priv;
4018 spin_lock(&priv->stream_lock);
4019 /* Destroy any active ampdu streams for this sta */
4020 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
4021 struct mwl8k_ampdu_stream *s;
4022 s = &priv->ampdu[i];
4023 if (s->state != AMPDU_NO_STREAM) {
4024 if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
4025 if (s->state == AMPDU_STREAM_ACTIVE) {
4027 spin_unlock(&priv->stream_lock);
4028 mwl8k_destroy_ba(hw, idx);
4029 spin_lock(&priv->stream_lock);
4030 } else if (s->state == AMPDU_STREAM_NEW) {
4031 mwl8k_remove_stream(hw, s);
4037 spin_unlock(&priv->stream_lock);
4039 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4043 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4044 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4045 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4046 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
4048 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4055 * CMD_UPDATE_ENCRYPTION.
4058 #define MAX_ENCR_KEY_LENGTH 16
4059 #define MIC_KEY_LENGTH 8
4061 struct mwl8k_cmd_update_encryption {
4062 struct mwl8k_cmd_pkt header;
4071 struct mwl8k_cmd_set_key {
4072 struct mwl8k_cmd_pkt header;
4081 __u8 key_material[MAX_ENCR_KEY_LENGTH];
4082 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
4083 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
4084 __le16 tkip_rsc_low;
4085 __le32 tkip_rsc_high;
4086 __le16 tkip_tsc_low;
4087 __le32 tkip_tsc_high;
4094 MWL8K_ENCR_REMOVE_KEY,
4095 MWL8K_ENCR_SET_GROUP_KEY,
4098 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4099 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4100 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4101 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4102 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4110 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4111 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4112 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4113 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4114 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4116 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
4117 struct ieee80211_vif *vif,
4121 struct mwl8k_cmd_update_encryption *cmd;
4124 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4128 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4129 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4130 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
4131 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4132 cmd->encr_type = encr_type;
4134 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4140 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
4142 struct ieee80211_key_conf *key)
4144 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4145 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4146 cmd->length = cpu_to_le16(sizeof(*cmd) -
4147 offsetof(struct mwl8k_cmd_set_key, length));
4148 cmd->key_id = cpu_to_le32(key->keyidx);
4149 cmd->key_len = cpu_to_le16(key->keylen);
4150 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4152 switch (key->cipher) {
4153 case WLAN_CIPHER_SUITE_WEP40:
4154 case WLAN_CIPHER_SUITE_WEP104:
4155 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
4156 if (key->keyidx == 0)
4157 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
4160 case WLAN_CIPHER_SUITE_TKIP:
4161 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
4162 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4163 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4164 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4165 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4166 | MWL8K_KEY_FLAG_TSC_VALID);
4168 case WLAN_CIPHER_SUITE_CCMP:
4169 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
4170 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4171 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4172 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4181 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
4182 struct ieee80211_vif *vif,
4184 struct ieee80211_key_conf *key)
4186 struct mwl8k_cmd_set_key *cmd;
4191 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4193 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4197 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4203 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4204 action = MWL8K_ENCR_SET_KEY;
4206 action = MWL8K_ENCR_SET_GROUP_KEY;
4208 switch (key->cipher) {
4209 case WLAN_CIPHER_SUITE_WEP40:
4210 case WLAN_CIPHER_SUITE_WEP104:
4211 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
4212 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
4213 sizeof(*key) + key->keylen);
4214 mwl8k_vif->wep_key_conf[idx].enabled = 1;
4217 keymlen = key->keylen;
4218 action = MWL8K_ENCR_SET_KEY;
4220 case WLAN_CIPHER_SUITE_TKIP:
4221 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
4223 case WLAN_CIPHER_SUITE_CCMP:
4224 keymlen = key->keylen;
4231 memcpy(cmd->key_material, key->key, keymlen);
4232 cmd->action = cpu_to_le32(action);
4234 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4241 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
4242 struct ieee80211_vif *vif,
4244 struct ieee80211_key_conf *key)
4246 struct mwl8k_cmd_set_key *cmd;
4248 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4250 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4254 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4258 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4259 key->cipher == WLAN_CIPHER_SUITE_WEP104)
4260 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
4262 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
4264 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4271 static int mwl8k_set_key(struct ieee80211_hw *hw,
4272 enum set_key_cmd cmd_param,
4273 struct ieee80211_vif *vif,
4274 struct ieee80211_sta *sta,
4275 struct ieee80211_key_conf *key)
4280 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4281 struct mwl8k_priv *priv = hw->priv;
4283 if (vif->type == NL80211_IFTYPE_STATION && !priv->ap_fw)
4291 if (cmd_param == SET_KEY) {
4292 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
4296 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
4297 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
4298 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
4300 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
4302 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
4307 mwl8k_vif->is_hw_crypto_enabled = true;
4310 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
4322 struct ewc_ht_info {
4328 struct peer_capability_info {
4329 /* Peer type - AP vs. STA. */
4332 /* Basic 802.11 capabilities from assoc resp. */
4335 /* Set if peer supports 802.11n high throughput (HT). */
4338 /* Valid if HT is supported. */
4340 __u8 extended_ht_caps;
4341 struct ewc_ht_info ewc_info;
4343 /* Legacy rate table. Intersection of our rates and peer rates. */
4344 __u8 legacy_rates[12];
4346 /* HT rate table. Intersection of our rates and peer rates. */
4350 /* If set, interoperability mode, no proprietary extensions. */
4354 __le16 amsdu_enabled;
4357 struct mwl8k_cmd_update_stadb {
4358 struct mwl8k_cmd_pkt header;
4360 /* See STADB_ACTION_TYPE */
4363 /* Peer MAC address */
4364 __u8 peer_addr[ETH_ALEN];
4368 /* Peer info - valid during add/update. */
4369 struct peer_capability_info peer_info;
4372 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4373 #define MWL8K_STA_DB_DEL_ENTRY 2
4375 /* Peer Entry flags - used to define the type of the peer node */
4376 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4378 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
4379 struct ieee80211_vif *vif,
4380 struct ieee80211_sta *sta)
4382 struct mwl8k_cmd_update_stadb *cmd;
4383 struct peer_capability_info *p;
4387 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4391 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4392 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4393 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
4394 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
4396 p = &cmd->peer_info;
4397 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
4398 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
4399 p->ht_support = sta->ht_cap.ht_supported;
4400 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
4401 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
4402 ((sta->ht_cap.ampdu_density & 7) << 2);
4403 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
4404 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4406 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4407 legacy_rate_mask_to_array(p->legacy_rates, rates);
4408 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
4410 p->amsdu_enabled = 0;
4412 rc = mwl8k_post_cmd(hw, &cmd->header);
4420 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
4421 struct ieee80211_vif *vif, u8 *addr)
4423 struct mwl8k_cmd_update_stadb *cmd;
4426 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4430 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4431 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4432 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
4433 memcpy(cmd->peer_addr, addr, ETH_ALEN);
4435 rc = mwl8k_post_cmd(hw, &cmd->header);
4443 * Interrupt handling.
4445 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
4447 struct ieee80211_hw *hw = dev_id;
4448 struct mwl8k_priv *priv = hw->priv;
4451 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4455 if (status & MWL8K_A2H_INT_TX_DONE) {
4456 status &= ~MWL8K_A2H_INT_TX_DONE;
4457 tasklet_schedule(&priv->poll_tx_task);
4460 if (status & MWL8K_A2H_INT_RX_READY) {
4461 status &= ~MWL8K_A2H_INT_RX_READY;
4462 tasklet_schedule(&priv->poll_rx_task);
4465 if (status & MWL8K_A2H_INT_BA_WATCHDOG) {
4466 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG,
4467 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4469 atomic_inc(&priv->watchdog_event_pending);
4470 status &= ~MWL8K_A2H_INT_BA_WATCHDOG;
4471 ieee80211_queue_work(hw, &priv->watchdog_ba_handle);
4475 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4477 if (status & MWL8K_A2H_INT_OPC_DONE) {
4478 if (priv->hostcmd_wait != NULL)
4479 complete(priv->hostcmd_wait);
4482 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
4483 if (!mutex_is_locked(&priv->fw_mutex) &&
4484 priv->radio_on && priv->pending_tx_pkts)
4485 mwl8k_tx_start(priv);
4491 static void mwl8k_tx_poll(unsigned long data)
4493 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4494 struct mwl8k_priv *priv = hw->priv;
4500 spin_lock_bh(&priv->tx_lock);
4502 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4503 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
4505 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
4506 complete(priv->tx_wait);
4507 priv->tx_wait = NULL;
4510 spin_unlock_bh(&priv->tx_lock);
4513 writel(~MWL8K_A2H_INT_TX_DONE,
4514 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4516 tasklet_schedule(&priv->poll_tx_task);
4520 static void mwl8k_rx_poll(unsigned long data)
4522 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4523 struct mwl8k_priv *priv = hw->priv;
4527 limit -= rxq_process(hw, 0, limit);
4528 limit -= rxq_refill(hw, 0, limit);
4531 writel(~MWL8K_A2H_INT_RX_READY,
4532 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4534 tasklet_schedule(&priv->poll_rx_task);
4540 * Core driver operations.
4542 static void mwl8k_tx(struct ieee80211_hw *hw,
4543 struct ieee80211_tx_control *control,
4544 struct sk_buff *skb)
4546 struct mwl8k_priv *priv = hw->priv;
4547 int index = skb_get_queue_mapping(skb);
4549 if (!priv->radio_on) {
4550 wiphy_debug(hw->wiphy,
4551 "dropped TX frame since radio disabled\n");
4556 mwl8k_txq_xmit(hw, index, control->sta, skb);
4559 static int mwl8k_start(struct ieee80211_hw *hw)
4561 struct mwl8k_priv *priv = hw->priv;
4564 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4565 IRQF_SHARED, MWL8K_NAME, hw);
4568 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4571 priv->irq = priv->pdev->irq;
4573 /* Enable TX reclaim and RX tasklets. */
4574 tasklet_enable(&priv->poll_tx_task);
4575 tasklet_enable(&priv->poll_rx_task);
4577 /* Enable interrupts */
4578 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4579 iowrite32(MWL8K_A2H_EVENTS,
4580 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4582 rc = mwl8k_fw_lock(hw);
4584 rc = mwl8k_cmd_radio_enable(hw);
4588 rc = mwl8k_cmd_enable_sniffer(hw, 0);
4591 rc = mwl8k_cmd_set_pre_scan(hw);
4594 rc = mwl8k_cmd_set_post_scan(hw,
4595 "\x00\x00\x00\x00\x00\x00");
4599 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
4602 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
4604 mwl8k_fw_unlock(hw);
4608 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4609 free_irq(priv->pdev->irq, hw);
4611 tasklet_disable(&priv->poll_tx_task);
4612 tasklet_disable(&priv->poll_rx_task);
4614 ieee80211_wake_queues(hw);
4620 static void mwl8k_stop(struct ieee80211_hw *hw)
4622 struct mwl8k_priv *priv = hw->priv;
4625 if (!priv->hw_restart_in_progress)
4626 mwl8k_cmd_radio_disable(hw);
4628 ieee80211_stop_queues(hw);
4630 /* Disable interrupts */
4631 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4632 if (priv->irq != -1) {
4633 free_irq(priv->pdev->irq, hw);
4637 /* Stop finalize join worker */
4638 cancel_work_sync(&priv->finalize_join_worker);
4639 cancel_work_sync(&priv->watchdog_ba_handle);
4640 if (priv->beacon_skb != NULL)
4641 dev_kfree_skb(priv->beacon_skb);
4643 /* Stop TX reclaim and RX tasklets. */
4644 tasklet_disable(&priv->poll_tx_task);
4645 tasklet_disable(&priv->poll_rx_task);
4647 /* Return all skbs to mac80211 */
4648 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4649 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4652 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
4654 static int mwl8k_add_interface(struct ieee80211_hw *hw,
4655 struct ieee80211_vif *vif)
4657 struct mwl8k_priv *priv = hw->priv;
4658 struct mwl8k_vif *mwl8k_vif;
4659 u32 macids_supported;
4661 struct mwl8k_device_info *di;
4664 * Reject interface creation if sniffer mode is active, as
4665 * STA operation is mutually exclusive with hardware sniffer
4666 * mode. (Sniffer mode is only used on STA firmware.)
4668 if (priv->sniffer_enabled) {
4669 wiphy_info(hw->wiphy,
4670 "unable to create STA interface because sniffer mode is enabled\n");
4674 di = priv->device_info;
4675 switch (vif->type) {
4676 case NL80211_IFTYPE_AP:
4677 if (!priv->ap_fw && di->fw_image_ap) {
4678 /* we must load the ap fw to meet this request */
4679 if (!list_empty(&priv->vif_list))
4681 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4685 macids_supported = priv->ap_macids_supported;
4687 case NL80211_IFTYPE_STATION:
4688 if (priv->ap_fw && di->fw_image_sta) {
4689 if (!list_empty(&priv->vif_list)) {
4690 wiphy_warn(hw->wiphy, "AP interface is running.\n"
4691 "Adding STA interface for WDS");
4693 /* we must load the sta fw to
4694 * meet this request.
4696 rc = mwl8k_reload_firmware(hw,
4702 macids_supported = priv->sta_macids_supported;
4708 macid = ffs(macids_supported & ~priv->macids_used);
4712 /* Setup driver private area. */
4713 mwl8k_vif = MWL8K_VIF(vif);
4714 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
4715 mwl8k_vif->vif = vif;
4716 mwl8k_vif->macid = macid;
4717 mwl8k_vif->seqno = 0;
4718 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
4719 mwl8k_vif->is_hw_crypto_enabled = false;
4721 /* Set the mac address. */
4722 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
4724 if (vif->type == NL80211_IFTYPE_AP)
4725 mwl8k_cmd_set_new_stn_add_self(hw, vif);
4727 priv->macids_used |= 1 << mwl8k_vif->macid;
4728 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
4733 static void mwl8k_remove_vif(struct mwl8k_priv *priv, struct mwl8k_vif *vif)
4735 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4736 if (!priv->macids_used)
4739 priv->macids_used &= ~(1 << vif->macid);
4740 list_del(&vif->list);
4743 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
4744 struct ieee80211_vif *vif)
4746 struct mwl8k_priv *priv = hw->priv;
4747 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4749 if (vif->type == NL80211_IFTYPE_AP)
4750 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
4752 mwl8k_cmd_del_mac_addr(hw, vif, vif->addr);
4754 mwl8k_remove_vif(priv, mwl8k_vif);
4757 static void mwl8k_hw_restart_work(struct work_struct *work)
4759 struct mwl8k_priv *priv =
4760 container_of(work, struct mwl8k_priv, fw_reload);
4761 struct ieee80211_hw *hw = priv->hw;
4762 struct mwl8k_device_info *di;
4765 /* If some command is waiting for a response, clear it */
4766 if (priv->hostcmd_wait != NULL) {
4767 complete(priv->hostcmd_wait);
4768 priv->hostcmd_wait = NULL;
4771 priv->hw_restart_owner = current;
4772 di = priv->device_info;
4776 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4778 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
4783 priv->hw_restart_owner = NULL;
4784 priv->hw_restart_in_progress = false;
4787 * This unlock will wake up the queues and
4788 * also opens the command path for other
4791 mwl8k_fw_unlock(hw);
4793 ieee80211_restart_hw(hw);
4795 wiphy_err(hw->wiphy, "Firmware restarted successfully\n");
4799 mwl8k_fw_unlock(hw);
4801 wiphy_err(hw->wiphy, "Firmware restart failed\n");
4804 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
4806 struct ieee80211_conf *conf = &hw->conf;
4807 struct mwl8k_priv *priv = hw->priv;
4810 if (conf->flags & IEEE80211_CONF_IDLE) {
4811 mwl8k_cmd_radio_disable(hw);
4815 rc = mwl8k_fw_lock(hw);
4819 rc = mwl8k_cmd_radio_enable(hw);
4823 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
4824 rc = mwl8k_cmd_set_rf_channel(hw, conf);
4829 if (conf->power_level > 18)
4830 conf->power_level = 18;
4834 if (conf->flags & IEEE80211_CONF_CHANGE_POWER) {
4835 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
4842 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
4845 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
4849 mwl8k_fw_unlock(hw);
4855 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4856 struct ieee80211_bss_conf *info, u32 changed)
4858 struct mwl8k_priv *priv = hw->priv;
4859 u32 ap_legacy_rates = 0;
4860 u8 ap_mcs_rates[16];
4863 if (mwl8k_fw_lock(hw))
4867 * No need to capture a beacon if we're no longer associated.
4869 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
4870 priv->capture_beacon = false;
4873 * Get the AP's legacy and MCS rates.
4875 if (vif->bss_conf.assoc) {
4876 struct ieee80211_sta *ap;
4880 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
4886 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
4887 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
4890 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4892 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
4897 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
4899 rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
4903 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
4907 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
4912 /* Use AP firmware specific rate command.
4914 idx = ffs(vif->bss_conf.basic_rates);
4918 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
4919 rate = mwl8k_rates_24[idx].hw_value;
4921 rate = mwl8k_rates_50[idx].hw_value;
4923 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
4927 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4928 rc = mwl8k_set_radio_preamble(hw,
4929 vif->bss_conf.use_short_preamble);
4934 if ((changed & BSS_CHANGED_ERP_SLOT) && !priv->ap_fw) {
4935 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
4940 if (vif->bss_conf.assoc && !priv->ap_fw &&
4941 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
4943 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
4948 if (vif->bss_conf.assoc &&
4949 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
4951 * Finalize the join. Tell rx handler to process
4952 * next beacon from our BSSID.
4954 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
4955 priv->capture_beacon = true;
4959 mwl8k_fw_unlock(hw);
4963 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4964 struct ieee80211_bss_conf *info, u32 changed)
4968 if (mwl8k_fw_lock(hw))
4971 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4972 rc = mwl8k_set_radio_preamble(hw,
4973 vif->bss_conf.use_short_preamble);
4978 if (changed & BSS_CHANGED_BASIC_RATES) {
4983 * Use lowest supported basic rate for multicasts
4984 * and management frames (such as probe responses --
4985 * beacons will always go out at 1 Mb/s).
4987 idx = ffs(vif->bss_conf.basic_rates);
4991 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
4992 rate = mwl8k_rates_24[idx].hw_value;
4994 rate = mwl8k_rates_50[idx].hw_value;
4996 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
4999 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
5000 struct sk_buff *skb;
5002 skb = ieee80211_beacon_get(hw, vif);
5004 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
5009 if (changed & BSS_CHANGED_BEACON_ENABLED)
5010 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
5013 mwl8k_fw_unlock(hw);
5017 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5018 struct ieee80211_bss_conf *info, u32 changed)
5020 if (vif->type == NL80211_IFTYPE_STATION)
5021 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
5022 if (vif->type == NL80211_IFTYPE_AP)
5023 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
5026 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
5027 struct netdev_hw_addr_list *mc_list)
5029 struct mwl8k_cmd_pkt *cmd;
5032 * Synthesize and return a command packet that programs the
5033 * hardware multicast address filter. At this point we don't
5034 * know whether FIF_ALLMULTI is being requested, but if it is,
5035 * we'll end up throwing this packet away and creating a new
5036 * one in mwl8k_configure_filter().
5038 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
5040 return (unsigned long)cmd;
5044 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
5045 unsigned int changed_flags,
5046 unsigned int *total_flags)
5048 struct mwl8k_priv *priv = hw->priv;
5051 * Hardware sniffer mode is mutually exclusive with STA
5052 * operation, so refuse to enable sniffer mode if a STA
5053 * interface is active.
5055 if (!list_empty(&priv->vif_list)) {
5056 if (net_ratelimit())
5057 wiphy_info(hw->wiphy,
5058 "not enabling sniffer mode because STA interface is active\n");
5062 if (!priv->sniffer_enabled) {
5063 if (mwl8k_cmd_enable_sniffer(hw, 1))
5065 priv->sniffer_enabled = true;
5068 *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI |
5069 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
5075 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
5077 if (!list_empty(&priv->vif_list))
5078 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
5083 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
5084 unsigned int changed_flags,
5085 unsigned int *total_flags,
5088 struct mwl8k_priv *priv = hw->priv;
5089 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
5092 * AP firmware doesn't allow fine-grained control over
5093 * the receive filter.
5096 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5102 * Enable hardware sniffer mode if FIF_CONTROL or
5103 * FIF_OTHER_BSS is requested.
5105 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
5106 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
5111 /* Clear unsupported feature flags */
5112 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5114 if (mwl8k_fw_lock(hw)) {
5119 if (priv->sniffer_enabled) {
5120 mwl8k_cmd_enable_sniffer(hw, 0);
5121 priv->sniffer_enabled = false;
5124 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
5125 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
5127 * Disable the BSS filter.
5129 mwl8k_cmd_set_pre_scan(hw);
5131 struct mwl8k_vif *mwl8k_vif;
5135 * Enable the BSS filter.
5137 * If there is an active STA interface, use that
5138 * interface's BSSID, otherwise use a dummy one
5139 * (where the OUI part needs to be nonzero for
5140 * the BSSID to be accepted by POST_SCAN).
5142 mwl8k_vif = mwl8k_first_vif(priv);
5143 if (mwl8k_vif != NULL)
5144 bssid = mwl8k_vif->vif->bss_conf.bssid;
5146 bssid = "\x01\x00\x00\x00\x00\x00";
5148 mwl8k_cmd_set_post_scan(hw, bssid);
5153 * If FIF_ALLMULTI is being requested, throw away the command
5154 * packet that ->prepare_multicast() built and replace it with
5155 * a command packet that enables reception of all multicast
5158 if (*total_flags & FIF_ALLMULTI) {
5160 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
5164 mwl8k_post_cmd(hw, cmd);
5168 mwl8k_fw_unlock(hw);
5171 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
5173 return mwl8k_cmd_set_rts_threshold(hw, value);
5176 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
5177 struct ieee80211_vif *vif,
5178 struct ieee80211_sta *sta)
5180 struct mwl8k_priv *priv = hw->priv;
5183 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
5185 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
5188 static int mwl8k_sta_add(struct ieee80211_hw *hw,
5189 struct ieee80211_vif *vif,
5190 struct ieee80211_sta *sta)
5192 struct mwl8k_priv *priv = hw->priv;
5195 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
5196 struct ieee80211_key_conf *key;
5199 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
5201 MWL8K_STA(sta)->peer_id = ret;
5202 if (sta->ht_cap.ht_supported)
5203 MWL8K_STA(sta)->is_ampdu_allowed = true;
5208 ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
5211 for (i = 0; i < NUM_WEP_KEYS; i++) {
5212 key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key);
5213 if (mwl8k_vif->wep_key_conf[i].enabled)
5214 mwl8k_set_key(hw, SET_KEY, vif, sta, key);
5219 static int mwl8k_conf_tx(struct ieee80211_hw *hw,
5220 struct ieee80211_vif *vif, u16 queue,
5221 const struct ieee80211_tx_queue_params *params)
5223 struct mwl8k_priv *priv = hw->priv;
5226 rc = mwl8k_fw_lock(hw);
5228 BUG_ON(queue > MWL8K_TX_WMM_QUEUES - 1);
5229 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
5231 if (!priv->wmm_enabled)
5232 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
5235 int q = MWL8K_TX_WMM_QUEUES - 1 - queue;
5236 rc = mwl8k_cmd_set_edca_params(hw, q,
5243 mwl8k_fw_unlock(hw);
5249 static int mwl8k_get_stats(struct ieee80211_hw *hw,
5250 struct ieee80211_low_level_stats *stats)
5252 return mwl8k_cmd_get_stat(hw, stats);
5255 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
5256 struct survey_info *survey)
5258 struct mwl8k_priv *priv = hw->priv;
5259 struct ieee80211_conf *conf = &hw->conf;
5264 survey->channel = conf->channel;
5265 survey->filled = SURVEY_INFO_NOISE_DBM;
5266 survey->noise = priv->noise;
5271 #define MAX_AMPDU_ATTEMPTS 5
5274 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5275 enum ieee80211_ampdu_mlme_action action,
5276 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
5281 struct mwl8k_priv *priv = hw->priv;
5282 struct mwl8k_ampdu_stream *stream;
5283 u8 *addr = sta->addr, idx;
5284 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
5286 if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
5289 spin_lock(&priv->stream_lock);
5290 stream = mwl8k_lookup_stream(hw, addr, tid);
5293 case IEEE80211_AMPDU_RX_START:
5294 case IEEE80211_AMPDU_RX_STOP:
5296 case IEEE80211_AMPDU_TX_START:
5297 /* By the time we get here the hw queues may contain outgoing
5298 * packets for this RA/TID that are not part of this BA
5299 * session. The hw will assign sequence numbers to these
5300 * packets as they go out. So if we query the hw for its next
5301 * sequence number and use that for the SSN here, it may end up
5302 * being wrong, which will lead to sequence number mismatch at
5303 * the recipient. To avoid this, we reset the sequence number
5304 * to O for the first MPDU in this BA stream.
5307 if (stream == NULL) {
5308 /* This means that somebody outside this driver called
5309 * ieee80211_start_tx_ba_session. This is unexpected
5310 * because we do our own rate control. Just warn and
5313 wiphy_warn(hw->wiphy, "Unexpected call to %s. "
5314 "Proceeding anyway.\n", __func__);
5315 stream = mwl8k_add_stream(hw, sta, tid);
5317 if (stream == NULL) {
5318 wiphy_debug(hw->wiphy, "no free AMPDU streams\n");
5322 stream->state = AMPDU_STREAM_IN_PROGRESS;
5324 /* Release the lock before we do the time consuming stuff */
5325 spin_unlock(&priv->stream_lock);
5326 for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) {
5328 /* Check if link is still valid */
5329 if (!sta_info->is_ampdu_allowed) {
5330 spin_lock(&priv->stream_lock);
5331 mwl8k_remove_stream(hw, stream);
5332 spin_unlock(&priv->stream_lock);
5336 rc = mwl8k_check_ba(hw, stream, vif);
5338 /* If HW restart is in progress mwl8k_post_cmd will
5339 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5342 if (!rc || rc == -EBUSY)
5345 * HW queues take time to be flushed, give them
5351 spin_lock(&priv->stream_lock);
5353 wiphy_err(hw->wiphy, "Stream for tid %d busy after %d"
5354 " attempts\n", tid, MAX_AMPDU_ATTEMPTS);
5355 mwl8k_remove_stream(hw, stream);
5359 ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
5361 case IEEE80211_AMPDU_TX_STOP_CONT:
5362 case IEEE80211_AMPDU_TX_STOP_FLUSH:
5363 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
5365 if (stream->state == AMPDU_STREAM_ACTIVE) {
5367 spin_unlock(&priv->stream_lock);
5368 mwl8k_destroy_ba(hw, idx);
5369 spin_lock(&priv->stream_lock);
5371 mwl8k_remove_stream(hw, stream);
5373 ieee80211_stop_tx_ba_cb_irqsafe(vif, addr, tid);
5375 case IEEE80211_AMPDU_TX_OPERATIONAL:
5376 BUG_ON(stream == NULL);
5377 BUG_ON(stream->state != AMPDU_STREAM_IN_PROGRESS);
5378 spin_unlock(&priv->stream_lock);
5379 rc = mwl8k_create_ba(hw, stream, buf_size, vif);
5380 spin_lock(&priv->stream_lock);
5382 stream->state = AMPDU_STREAM_ACTIVE;
5385 spin_unlock(&priv->stream_lock);
5386 mwl8k_destroy_ba(hw, idx);
5387 spin_lock(&priv->stream_lock);
5388 wiphy_debug(hw->wiphy,
5389 "Failed adding stream for sta %pM tid %d\n",
5391 mwl8k_remove_stream(hw, stream);
5399 spin_unlock(&priv->stream_lock);
5403 static const struct ieee80211_ops mwl8k_ops = {
5405 .start = mwl8k_start,
5407 .add_interface = mwl8k_add_interface,
5408 .remove_interface = mwl8k_remove_interface,
5409 .config = mwl8k_config,
5410 .bss_info_changed = mwl8k_bss_info_changed,
5411 .prepare_multicast = mwl8k_prepare_multicast,
5412 .configure_filter = mwl8k_configure_filter,
5413 .set_key = mwl8k_set_key,
5414 .set_rts_threshold = mwl8k_set_rts_threshold,
5415 .sta_add = mwl8k_sta_add,
5416 .sta_remove = mwl8k_sta_remove,
5417 .conf_tx = mwl8k_conf_tx,
5418 .get_stats = mwl8k_get_stats,
5419 .get_survey = mwl8k_get_survey,
5420 .ampdu_action = mwl8k_ampdu_action,
5423 static void mwl8k_finalize_join_worker(struct work_struct *work)
5425 struct mwl8k_priv *priv =
5426 container_of(work, struct mwl8k_priv, finalize_join_worker);
5427 struct sk_buff *skb = priv->beacon_skb;
5428 struct ieee80211_mgmt *mgmt = (void *)skb->data;
5429 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
5430 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
5431 mgmt->u.beacon.variable, len);
5432 int dtim_period = 1;
5434 if (tim && tim[1] >= 2)
5435 dtim_period = tim[3];
5437 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
5440 priv->beacon_skb = NULL;
5450 #define MWL8K_8366_AP_FW_API 3
5451 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5452 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5454 #define MWL8K_8764_AP_FW_API 1
5455 #define _MWL8K_8764_AP_FW(api) "mwl8k/fmimage_8764_ap-" #api ".fw"
5456 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5458 static struct mwl8k_device_info mwl8k_info_tbl[] = {
5460 .part_name = "88w8363",
5461 .helper_image = "mwl8k/helper_8363.fw",
5462 .fw_image_sta = "mwl8k/fmimage_8363.fw",
5465 .part_name = "88w8687",
5466 .helper_image = "mwl8k/helper_8687.fw",
5467 .fw_image_sta = "mwl8k/fmimage_8687.fw",
5470 .part_name = "88w8366",
5471 .helper_image = "mwl8k/helper_8366.fw",
5472 .fw_image_sta = "mwl8k/fmimage_8366.fw",
5473 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
5474 .fw_api_ap = MWL8K_8366_AP_FW_API,
5475 .ap_rxd_ops = &rxd_ap_ops,
5478 .part_name = "88w8764",
5479 .fw_image_ap = MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API),
5480 .fw_api_ap = MWL8K_8764_AP_FW_API,
5481 .ap_rxd_ops = &rxd_ap_ops,
5485 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5486 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5487 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5488 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5489 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5490 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5491 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
5493 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
5494 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
5495 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
5496 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
5497 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
5498 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
5499 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
5500 { PCI_VDEVICE(MARVELL, 0x2a41), .driver_data = MWL8366, },
5501 { PCI_VDEVICE(MARVELL, 0x2a42), .driver_data = MWL8366, },
5502 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
5503 { PCI_VDEVICE(MARVELL, 0x2b36), .driver_data = MWL8764, },
5506 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
5508 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
5511 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
5512 "Trying alternative firmware %s\n", pci_name(priv->pdev),
5513 priv->fw_pref, priv->fw_alt);
5514 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
5516 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5517 pci_name(priv->pdev), priv->fw_alt);
5523 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
5524 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
5526 struct mwl8k_priv *priv = context;
5527 struct mwl8k_device_info *di = priv->device_info;
5530 switch (priv->fw_state) {
5533 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
5534 pci_name(priv->pdev), di->helper_image);
5537 priv->fw_helper = fw;
5538 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
5540 if (rc && priv->fw_alt) {
5541 rc = mwl8k_request_alt_fw(priv);
5544 priv->fw_state = FW_STATE_LOADING_ALT;
5548 priv->fw_state = FW_STATE_LOADING_PREF;
5551 case FW_STATE_LOADING_PREF:
5554 rc = mwl8k_request_alt_fw(priv);
5557 priv->fw_state = FW_STATE_LOADING_ALT;
5561 priv->fw_ucode = fw;
5562 rc = mwl8k_firmware_load_success(priv);
5566 complete(&priv->firmware_loading_complete);
5570 case FW_STATE_LOADING_ALT:
5572 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5573 pci_name(priv->pdev), di->helper_image);
5576 priv->fw_ucode = fw;
5577 rc = mwl8k_firmware_load_success(priv);
5581 complete(&priv->firmware_loading_complete);
5585 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
5586 MWL8K_NAME, priv->fw_state);
5593 priv->fw_state = FW_STATE_ERROR;
5594 complete(&priv->firmware_loading_complete);
5595 device_release_driver(&priv->pdev->dev);
5596 mwl8k_release_firmware(priv);
5599 #define MAX_RESTART_ATTEMPTS 1
5600 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
5603 struct mwl8k_priv *priv = hw->priv;
5605 int count = MAX_RESTART_ATTEMPTS;
5608 /* Reset firmware and hardware */
5609 mwl8k_hw_reset(priv);
5611 /* Ask userland hotplug daemon for the device firmware */
5612 rc = mwl8k_request_firmware(priv, fw_image, nowait);
5614 wiphy_err(hw->wiphy, "Firmware files not found\n");
5621 /* Load firmware into hardware */
5622 rc = mwl8k_load_firmware(hw);
5624 wiphy_err(hw->wiphy, "Cannot start firmware\n");
5626 /* Reclaim memory once firmware is successfully loaded */
5627 mwl8k_release_firmware(priv);
5630 /* FW did not start successfully;
5631 * lets try one more time
5634 wiphy_err(hw->wiphy, "Trying to reload the firmware again\n");
5642 static int mwl8k_init_txqs(struct ieee80211_hw *hw)
5644 struct mwl8k_priv *priv = hw->priv;
5648 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
5649 rc = mwl8k_txq_init(hw, i);
5653 iowrite32(priv->txq[i].txd_dma,
5654 priv->sram + priv->txq_offset[i]);
5659 /* initialize hw after successfully loading a firmware image */
5660 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
5662 struct mwl8k_priv *priv = hw->priv;
5667 priv->rxd_ops = priv->device_info->ap_rxd_ops;
5668 if (priv->rxd_ops == NULL) {
5669 wiphy_err(hw->wiphy,
5670 "Driver does not have AP firmware image support for this hardware\n");
5672 goto err_stop_firmware;
5675 priv->rxd_ops = &rxd_sta_ops;
5678 priv->sniffer_enabled = false;
5679 priv->wmm_enabled = false;
5680 priv->pending_tx_pkts = 0;
5681 atomic_set(&priv->watchdog_event_pending, 0);
5683 rc = mwl8k_rxq_init(hw, 0);
5685 goto err_stop_firmware;
5686 rxq_refill(hw, 0, INT_MAX);
5688 /* For the sta firmware, we need to know the dma addresses of tx queues
5689 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5690 * prior to issuing this command. But for the AP case, we learn the
5691 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5692 * case we must initialize the tx queues after.
5694 priv->num_ampdu_queues = 0;
5696 rc = mwl8k_init_txqs(hw);
5698 goto err_free_queues;
5701 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
5702 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5703 iowrite32(MWL8K_A2H_INT_TX_DONE|MWL8K_A2H_INT_RX_READY|
5704 MWL8K_A2H_INT_BA_WATCHDOG,
5705 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
5706 iowrite32(MWL8K_A2H_INT_OPC_DONE,
5707 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
5709 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
5710 IRQF_SHARED, MWL8K_NAME, hw);
5712 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
5713 goto err_free_queues;
5717 * When hw restart is requested,
5718 * mac80211 will take care of clearing
5719 * the ampdu streams, so do not clear
5720 * the ampdu state here
5722 if (!priv->hw_restart_in_progress)
5723 memset(priv->ampdu, 0, sizeof(priv->ampdu));
5726 * Temporarily enable interrupts. Initial firmware host
5727 * commands use interrupts and avoid polling. Disable
5728 * interrupts when done.
5730 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5732 /* Get config data, mac addrs etc */
5734 rc = mwl8k_cmd_get_hw_spec_ap(hw);
5736 rc = mwl8k_init_txqs(hw);
5738 rc = mwl8k_cmd_set_hw_spec(hw);
5740 rc = mwl8k_cmd_get_hw_spec_sta(hw);
5743 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
5747 /* Turn radio off */
5748 rc = mwl8k_cmd_radio_disable(hw);
5750 wiphy_err(hw->wiphy, "Cannot disable\n");
5754 /* Clear MAC address */
5755 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
5757 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
5761 /* Configure Antennas */
5762 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
5764 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
5765 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
5767 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
5770 /* Disable interrupts */
5771 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5772 free_irq(priv->pdev->irq, hw);
5774 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5775 priv->device_info->part_name,
5776 priv->hw_rev, hw->wiphy->perm_addr,
5777 priv->ap_fw ? "AP" : "STA",
5778 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
5779 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
5784 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5785 free_irq(priv->pdev->irq, hw);
5788 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5789 mwl8k_txq_deinit(hw, i);
5790 mwl8k_rxq_deinit(hw, 0);
5793 mwl8k_hw_reset(priv);
5799 * invoke mwl8k_reload_firmware to change the firmware image after the device
5800 * has already been registered
5802 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
5805 struct mwl8k_priv *priv = hw->priv;
5806 struct mwl8k_vif *vif, *tmp_vif;
5809 mwl8k_rxq_deinit(hw, 0);
5812 * All the existing interfaces are re-added by the ieee80211_reconfig;
5813 * which means driver should remove existing interfaces before calling
5814 * ieee80211_restart_hw
5816 if (priv->hw_restart_in_progress)
5817 list_for_each_entry_safe(vif, tmp_vif, &priv->vif_list, list)
5818 mwl8k_remove_vif(priv, vif);
5820 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5821 mwl8k_txq_deinit(hw, i);
5823 rc = mwl8k_init_firmware(hw, fw_image, false);
5827 rc = mwl8k_probe_hw(hw);
5831 if (priv->hw_restart_in_progress)
5834 rc = mwl8k_start(hw);
5838 rc = mwl8k_config(hw, ~0);
5842 for (i = 0; i < MWL8K_TX_WMM_QUEUES; i++) {
5843 rc = mwl8k_conf_tx(hw, NULL, i, &priv->wmm_params[i]);
5851 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
5855 static const struct ieee80211_iface_limit ap_if_limits[] = {
5856 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
5857 { .max = 1, .types = BIT(NL80211_IFTYPE_STATION) },
5860 static const struct ieee80211_iface_combination ap_if_comb = {
5861 .limits = ap_if_limits,
5862 .n_limits = ARRAY_SIZE(ap_if_limits),
5863 .max_interfaces = 8,
5864 .num_different_channels = 1,
5868 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
5870 struct ieee80211_hw *hw = priv->hw;
5873 rc = mwl8k_load_firmware(hw);
5874 mwl8k_release_firmware(priv);
5876 wiphy_err(hw->wiphy, "Cannot start firmware\n");
5881 * Extra headroom is the size of the required DMA header
5882 * minus the size of the smallest 802.11 frame (CTS frame).
5884 hw->extra_tx_headroom =
5885 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
5887 hw->extra_tx_headroom -= priv->ap_fw ? REDUCED_TX_HEADROOM : 0;
5889 hw->channel_change_time = 10;
5891 hw->queues = MWL8K_TX_WMM_QUEUES;
5893 /* Set rssi values to dBm */
5894 hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_HAS_RATE_CONTROL;
5897 * Ask mac80211 to not to trigger PS mode
5898 * based on PM bit of incoming frames.
5901 hw->flags |= IEEE80211_HW_AP_LINK_PS;
5903 hw->vif_data_size = sizeof(struct mwl8k_vif);
5904 hw->sta_data_size = sizeof(struct mwl8k_sta);
5906 priv->macids_used = 0;
5907 INIT_LIST_HEAD(&priv->vif_list);
5909 /* Set default radio state and preamble */
5910 priv->radio_on = false;
5911 priv->radio_short_preamble = false;
5913 /* Finalize join worker */
5914 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
5915 /* Handle watchdog ba events */
5916 INIT_WORK(&priv->watchdog_ba_handle, mwl8k_watchdog_ba_events);
5917 /* To reload the firmware if it crashes */
5918 INIT_WORK(&priv->fw_reload, mwl8k_hw_restart_work);
5920 /* TX reclaim and RX tasklets. */
5921 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
5922 tasklet_disable(&priv->poll_tx_task);
5923 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
5924 tasklet_disable(&priv->poll_rx_task);
5926 /* Power management cookie */
5927 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
5928 if (priv->cookie == NULL)
5931 mutex_init(&priv->fw_mutex);
5932 priv->fw_mutex_owner = NULL;
5933 priv->fw_mutex_depth = 0;
5934 priv->hostcmd_wait = NULL;
5936 spin_lock_init(&priv->tx_lock);
5938 spin_lock_init(&priv->stream_lock);
5940 priv->tx_wait = NULL;
5942 rc = mwl8k_probe_hw(hw);
5944 goto err_free_cookie;
5946 hw->wiphy->interface_modes = 0;
5948 if (priv->ap_macids_supported || priv->device_info->fw_image_ap) {
5949 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
5950 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
5951 hw->wiphy->iface_combinations = &ap_if_comb;
5952 hw->wiphy->n_iface_combinations = 1;
5955 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
5956 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
5958 rc = ieee80211_register_hw(hw);
5960 wiphy_err(hw->wiphy, "Cannot register device\n");
5961 goto err_unprobe_hw;
5967 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5968 mwl8k_txq_deinit(hw, i);
5969 mwl8k_rxq_deinit(hw, 0);
5972 if (priv->cookie != NULL)
5973 pci_free_consistent(priv->pdev, 4,
5974 priv->cookie, priv->cookie_dma);
5978 static int mwl8k_probe(struct pci_dev *pdev,
5979 const struct pci_device_id *id)
5981 static int printed_version;
5982 struct ieee80211_hw *hw;
5983 struct mwl8k_priv *priv;
5984 struct mwl8k_device_info *di;
5987 if (!printed_version) {
5988 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
5989 printed_version = 1;
5993 rc = pci_enable_device(pdev);
5995 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
6000 rc = pci_request_regions(pdev, MWL8K_NAME);
6002 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
6004 goto err_disable_device;
6007 pci_set_master(pdev);
6010 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
6012 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
6017 SET_IEEE80211_DEV(hw, &pdev->dev);
6018 pci_set_drvdata(pdev, hw);
6023 priv->device_info = &mwl8k_info_tbl[id->driver_data];
6025 if (id->driver_data == MWL8764)
6026 priv->is_8764 = true;
6028 priv->sram = pci_iomap(pdev, 0, 0x10000);
6029 if (priv->sram == NULL) {
6030 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
6036 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
6037 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
6039 priv->regs = pci_iomap(pdev, 1, 0x10000);
6040 if (priv->regs == NULL) {
6041 priv->regs = pci_iomap(pdev, 2, 0x10000);
6042 if (priv->regs == NULL) {
6043 wiphy_err(hw->wiphy, "Cannot map device registers\n");
6050 * Choose the initial fw image depending on user input. If a second
6051 * image is available, make it the alternative image that will be
6052 * loaded if the first one fails.
6054 init_completion(&priv->firmware_loading_complete);
6055 di = priv->device_info;
6056 if (ap_mode_default && di->fw_image_ap) {
6057 priv->fw_pref = di->fw_image_ap;
6058 priv->fw_alt = di->fw_image_sta;
6059 } else if (!ap_mode_default && di->fw_image_sta) {
6060 priv->fw_pref = di->fw_image_sta;
6061 priv->fw_alt = di->fw_image_ap;
6062 } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
6063 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
6064 priv->fw_pref = di->fw_image_sta;
6065 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
6066 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
6067 priv->fw_pref = di->fw_image_ap;
6069 rc = mwl8k_init_firmware(hw, priv->fw_pref, true);
6071 goto err_stop_firmware;
6073 priv->hw_restart_in_progress = false;
6075 priv->running_bsses = 0;
6080 mwl8k_hw_reset(priv);
6083 if (priv->regs != NULL)
6084 pci_iounmap(pdev, priv->regs);
6086 if (priv->sram != NULL)
6087 pci_iounmap(pdev, priv->sram);
6089 pci_set_drvdata(pdev, NULL);
6090 ieee80211_free_hw(hw);
6093 pci_release_regions(pdev);
6096 pci_disable_device(pdev);
6101 static void mwl8k_remove(struct pci_dev *pdev)
6103 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
6104 struct mwl8k_priv *priv;
6111 wait_for_completion(&priv->firmware_loading_complete);
6113 if (priv->fw_state == FW_STATE_ERROR) {
6114 mwl8k_hw_reset(priv);
6118 ieee80211_stop_queues(hw);
6120 ieee80211_unregister_hw(hw);
6122 /* Remove TX reclaim and RX tasklets. */
6123 tasklet_kill(&priv->poll_tx_task);
6124 tasklet_kill(&priv->poll_rx_task);
6127 mwl8k_hw_reset(priv);
6129 /* Return all skbs to mac80211 */
6130 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6131 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
6133 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6134 mwl8k_txq_deinit(hw, i);
6136 mwl8k_rxq_deinit(hw, 0);
6138 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
6141 pci_iounmap(pdev, priv->regs);
6142 pci_iounmap(pdev, priv->sram);
6143 pci_set_drvdata(pdev, NULL);
6144 ieee80211_free_hw(hw);
6145 pci_release_regions(pdev);
6146 pci_disable_device(pdev);
6149 static struct pci_driver mwl8k_driver = {
6151 .id_table = mwl8k_pci_id_table,
6152 .probe = mwl8k_probe,
6153 .remove = mwl8k_remove,
6156 module_pci_driver(mwl8k_driver);
6158 MODULE_DESCRIPTION(MWL8K_DESC);
6159 MODULE_VERSION(MWL8K_VERSION);
6160 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
6161 MODULE_LICENSE("GPL");