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/interrupt.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/sched.h>
16 #include <linux/spinlock.h>
17 #include <linux/list.h>
18 #include <linux/pci.h>
19 #include <linux/delay.h>
20 #include <linux/completion.h>
21 #include <linux/etherdevice.h>
22 #include <linux/slab.h>
23 #include <net/mac80211.h>
24 #include <linux/moduleparam.h>
25 #include <linux/firmware.h>
26 #include <linux/workqueue.h>
28 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
29 #define MWL8K_NAME KBUILD_MODNAME
30 #define MWL8K_VERSION "0.13"
32 /* Module parameters */
33 static bool ap_mode_default;
34 module_param(ap_mode_default, bool, 0);
35 MODULE_PARM_DESC(ap_mode_default,
36 "Set to 1 to make ap mode the default instead of sta mode");
38 /* Register definitions */
39 #define MWL8K_HIU_GEN_PTR 0x00000c10
40 #define MWL8K_MODE_STA 0x0000005a
41 #define MWL8K_MODE_AP 0x000000a5
42 #define MWL8K_HIU_INT_CODE 0x00000c14
43 #define MWL8K_FWSTA_READY 0xf0f1f2f4
44 #define MWL8K_FWAP_READY 0xf1f2f4a5
45 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
46 #define MWL8K_HIU_SCRATCH 0x00000c40
48 /* Host->device communications */
49 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
50 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
51 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
52 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
53 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
54 #define MWL8K_H2A_INT_DUMMY (1 << 20)
55 #define MWL8K_H2A_INT_RESET (1 << 15)
56 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
57 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
59 /* Device->host communications */
60 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
61 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
62 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
63 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
64 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
65 #define MWL8K_A2H_INT_DUMMY (1 << 20)
66 #define MWL8K_A2H_INT_BA_WATCHDOG (1 << 14)
67 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
68 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
69 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
70 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
71 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
72 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
73 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
74 #define MWL8K_A2H_INT_RX_READY (1 << 1)
75 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
77 /* HW micro second timer register
78 * located at offset 0xA600. This
79 * will be used to timestamp tx
83 #define MWL8K_HW_TIMER_REGISTER 0x0000a600
84 #define BBU_RXRDY_CNT_REG 0x0000a860
85 #define NOK_CCA_CNT_REG 0x0000a6a0
86 #define BBU_AVG_NOISE_VAL 0x67
88 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
89 MWL8K_A2H_INT_CHNL_SWITCHED | \
90 MWL8K_A2H_INT_QUEUE_EMPTY | \
91 MWL8K_A2H_INT_RADAR_DETECT | \
92 MWL8K_A2H_INT_RADIO_ON | \
93 MWL8K_A2H_INT_RADIO_OFF | \
94 MWL8K_A2H_INT_MAC_EVENT | \
95 MWL8K_A2H_INT_OPC_DONE | \
96 MWL8K_A2H_INT_RX_READY | \
97 MWL8K_A2H_INT_TX_DONE | \
98 MWL8K_A2H_INT_BA_WATCHDOG)
100 #define MWL8K_RX_QUEUES 1
101 #define MWL8K_TX_WMM_QUEUES 4
102 #define MWL8K_MAX_AMPDU_QUEUES 8
103 #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
104 #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
106 /* txpriorities are mapped with hw queues.
107 * Each hw queue has a txpriority.
109 #define TOTAL_HW_TX_QUEUES 8
111 /* Each HW queue can have one AMPDU stream.
112 * But, because one of the hw queue is reserved,
113 * maximum AMPDU queues that can be created are
114 * one short of total tx queues.
116 #define MWL8K_NUM_AMPDU_STREAMS (TOTAL_HW_TX_QUEUES - 1)
118 #define MWL8K_NUM_CHANS 18
122 void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
123 void (*rxd_refill)(void *rxd, dma_addr_t addr, int len);
124 int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status,
125 __le16 *qos, s8 *noise);
128 struct mwl8k_device_info {
133 struct rxd_ops *ap_rxd_ops;
137 struct mwl8k_rx_queue {
140 /* hw receives here */
143 /* refill descs here */
150 DEFINE_DMA_UNMAP_ADDR(dma);
154 struct mwl8k_tx_queue {
155 /* hw transmits here */
158 /* sw appends here */
162 struct mwl8k_tx_desc *txd;
164 struct sk_buff **skb;
170 AMPDU_STREAM_IN_PROGRESS,
174 struct mwl8k_ampdu_stream {
175 struct ieee80211_sta *sta;
182 struct ieee80211_hw *hw;
183 struct pci_dev *pdev;
186 struct mwl8k_device_info *device_info;
192 const struct firmware *fw_helper;
193 const struct firmware *fw_ucode;
195 /* hardware/firmware parameters */
197 struct rxd_ops *rxd_ops;
198 struct ieee80211_supported_band band_24;
199 struct ieee80211_channel channels_24[14];
200 struct ieee80211_rate rates_24[13];
201 struct ieee80211_supported_band band_50;
202 struct ieee80211_channel channels_50[4];
203 struct ieee80211_rate rates_50[8];
204 u32 ap_macids_supported;
205 u32 sta_macids_supported;
207 /* Ampdu stream information */
209 spinlock_t stream_lock;
210 struct mwl8k_ampdu_stream ampdu[MWL8K_MAX_AMPDU_QUEUES];
211 struct work_struct watchdog_ba_handle;
213 /* firmware access */
214 struct mutex fw_mutex;
215 struct task_struct *fw_mutex_owner;
216 struct task_struct *hw_restart_owner;
218 struct completion *hostcmd_wait;
220 atomic_t watchdog_event_pending;
222 /* lock held over TX and TX reap */
225 /* TX quiesce completion, protected by fw_mutex and tx_lock */
226 struct completion *tx_wait;
228 /* List of interfaces. */
230 struct list_head vif_list;
232 /* power management status cookie from firmware */
234 dma_addr_t cookie_dma;
242 * Running count of TX packets in flight, to avoid
243 * iterating over the transmit rings each time.
247 struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES];
248 struct mwl8k_tx_queue txq[MWL8K_MAX_TX_QUEUES];
249 u32 txq_offset[MWL8K_MAX_TX_QUEUES];
252 bool radio_short_preamble;
253 bool sniffer_enabled;
256 /* XXX need to convert this to handle multiple interfaces */
258 u8 capture_bssid[ETH_ALEN];
259 struct sk_buff *beacon_skb;
262 * This FJ worker has to be global as it is scheduled from the
263 * RX handler. At this point we don't know which interface it
264 * belongs to until the list of bssids waiting to complete join
267 struct work_struct finalize_join_worker;
269 /* Tasklet to perform TX reclaim. */
270 struct tasklet_struct poll_tx_task;
272 /* Tasklet to perform RX. */
273 struct tasklet_struct poll_rx_task;
275 /* Most recently reported noise in dBm */
279 * preserve the queue configurations so they can be restored if/when
280 * the firmware image is swapped.
282 struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_WMM_QUEUES];
284 /* To perform the task of reloading the firmware */
285 struct work_struct fw_reload;
286 bool hw_restart_in_progress;
288 /* async firmware loading state */
293 struct completion firmware_loading_complete;
295 /* bitmap of running BSSes */
300 struct ieee80211_channel *acs_chan;
301 unsigned long channel_time;
302 struct survey_info survey[MWL8K_NUM_CHANS];
305 #define MAX_WEP_KEY_LEN 13
306 #define NUM_WEP_KEYS 4
308 /* Per interface specific private data */
310 struct list_head list;
311 struct ieee80211_vif *vif;
313 /* Firmware macid for this vif. */
316 /* Non AMPDU sequence number assigned by driver. */
322 u8 key[sizeof(struct ieee80211_key_conf) + MAX_WEP_KEY_LEN];
323 } wep_key_conf[NUM_WEP_KEYS];
328 /* A flag to indicate is HW crypto is enabled for this bssid */
329 bool is_hw_crypto_enabled;
331 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
332 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
334 struct tx_traffic_info {
339 #define MWL8K_MAX_TID 8
341 /* Index into station database. Returned by UPDATE_STADB. */
344 struct tx_traffic_info tx_stats[MWL8K_MAX_TID];
346 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
348 static const struct ieee80211_channel mwl8k_channels_24[] = {
349 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2412, .hw_value = 1, },
350 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2417, .hw_value = 2, },
351 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2422, .hw_value = 3, },
352 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2427, .hw_value = 4, },
353 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2432, .hw_value = 5, },
354 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2437, .hw_value = 6, },
355 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2442, .hw_value = 7, },
356 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2447, .hw_value = 8, },
357 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2452, .hw_value = 9, },
358 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2457, .hw_value = 10, },
359 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2462, .hw_value = 11, },
360 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2467, .hw_value = 12, },
361 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2472, .hw_value = 13, },
362 { .band = IEEE80211_BAND_2GHZ, .center_freq = 2484, .hw_value = 14, },
365 static const struct ieee80211_rate mwl8k_rates_24[] = {
366 { .bitrate = 10, .hw_value = 2, },
367 { .bitrate = 20, .hw_value = 4, },
368 { .bitrate = 55, .hw_value = 11, },
369 { .bitrate = 110, .hw_value = 22, },
370 { .bitrate = 220, .hw_value = 44, },
371 { .bitrate = 60, .hw_value = 12, },
372 { .bitrate = 90, .hw_value = 18, },
373 { .bitrate = 120, .hw_value = 24, },
374 { .bitrate = 180, .hw_value = 36, },
375 { .bitrate = 240, .hw_value = 48, },
376 { .bitrate = 360, .hw_value = 72, },
377 { .bitrate = 480, .hw_value = 96, },
378 { .bitrate = 540, .hw_value = 108, },
381 static const struct ieee80211_channel mwl8k_channels_50[] = {
382 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5180, .hw_value = 36, },
383 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5200, .hw_value = 40, },
384 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5220, .hw_value = 44, },
385 { .band = IEEE80211_BAND_5GHZ, .center_freq = 5240, .hw_value = 48, },
388 static const struct ieee80211_rate mwl8k_rates_50[] = {
389 { .bitrate = 60, .hw_value = 12, },
390 { .bitrate = 90, .hw_value = 18, },
391 { .bitrate = 120, .hw_value = 24, },
392 { .bitrate = 180, .hw_value = 36, },
393 { .bitrate = 240, .hw_value = 48, },
394 { .bitrate = 360, .hw_value = 72, },
395 { .bitrate = 480, .hw_value = 96, },
396 { .bitrate = 540, .hw_value = 108, },
399 /* Set or get info from Firmware */
400 #define MWL8K_CMD_GET 0x0000
401 #define MWL8K_CMD_SET 0x0001
402 #define MWL8K_CMD_SET_LIST 0x0002
404 /* Firmware command codes */
405 #define MWL8K_CMD_CODE_DNLD 0x0001
406 #define MWL8K_CMD_GET_HW_SPEC 0x0003
407 #define MWL8K_CMD_SET_HW_SPEC 0x0004
408 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
409 #define MWL8K_CMD_GET_STAT 0x0014
410 #define MWL8K_CMD_BBP_REG_ACCESS 0x001a
411 #define MWL8K_CMD_RADIO_CONTROL 0x001c
412 #define MWL8K_CMD_RF_TX_POWER 0x001e
413 #define MWL8K_CMD_TX_POWER 0x001f
414 #define MWL8K_CMD_RF_ANTENNA 0x0020
415 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
416 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
417 #define MWL8K_CMD_SET_POST_SCAN 0x0108
418 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
419 #define MWL8K_CMD_SET_AID 0x010d
420 #define MWL8K_CMD_SET_RATE 0x0110
421 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
422 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
423 #define MWL8K_CMD_SET_SLOT 0x0114
424 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
425 #define MWL8K_CMD_SET_WMM_MODE 0x0123
426 #define MWL8K_CMD_MIMO_CONFIG 0x0125
427 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
428 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
429 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
430 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
431 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
432 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
433 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
434 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
435 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
436 #define MWL8K_CMD_UPDATE_STADB 0x1123
437 #define MWL8K_CMD_BASTREAM 0x1125
439 static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
441 u16 command = le16_to_cpu(cmd);
443 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
444 snprintf(buf, bufsize, "%s", #x);\
447 switch (command & ~0x8000) {
448 MWL8K_CMDNAME(CODE_DNLD);
449 MWL8K_CMDNAME(GET_HW_SPEC);
450 MWL8K_CMDNAME(SET_HW_SPEC);
451 MWL8K_CMDNAME(MAC_MULTICAST_ADR);
452 MWL8K_CMDNAME(GET_STAT);
453 MWL8K_CMDNAME(RADIO_CONTROL);
454 MWL8K_CMDNAME(RF_TX_POWER);
455 MWL8K_CMDNAME(TX_POWER);
456 MWL8K_CMDNAME(RF_ANTENNA);
457 MWL8K_CMDNAME(SET_BEACON);
458 MWL8K_CMDNAME(SET_PRE_SCAN);
459 MWL8K_CMDNAME(SET_POST_SCAN);
460 MWL8K_CMDNAME(SET_RF_CHANNEL);
461 MWL8K_CMDNAME(SET_AID);
462 MWL8K_CMDNAME(SET_RATE);
463 MWL8K_CMDNAME(SET_FINALIZE_JOIN);
464 MWL8K_CMDNAME(RTS_THRESHOLD);
465 MWL8K_CMDNAME(SET_SLOT);
466 MWL8K_CMDNAME(SET_EDCA_PARAMS);
467 MWL8K_CMDNAME(SET_WMM_MODE);
468 MWL8K_CMDNAME(MIMO_CONFIG);
469 MWL8K_CMDNAME(USE_FIXED_RATE);
470 MWL8K_CMDNAME(ENABLE_SNIFFER);
471 MWL8K_CMDNAME(SET_MAC_ADDR);
472 MWL8K_CMDNAME(SET_RATEADAPT_MODE);
473 MWL8K_CMDNAME(BSS_START);
474 MWL8K_CMDNAME(SET_NEW_STN);
475 MWL8K_CMDNAME(UPDATE_ENCRYPTION);
476 MWL8K_CMDNAME(UPDATE_STADB);
477 MWL8K_CMDNAME(BASTREAM);
478 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP);
480 snprintf(buf, bufsize, "0x%x", cmd);
487 /* Hardware and firmware reset */
488 static void mwl8k_hw_reset(struct mwl8k_priv *priv)
490 iowrite32(MWL8K_H2A_INT_RESET,
491 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
492 iowrite32(MWL8K_H2A_INT_RESET,
493 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
497 /* Release fw image */
498 static void mwl8k_release_fw(const struct firmware **fw)
502 release_firmware(*fw);
506 static void mwl8k_release_firmware(struct mwl8k_priv *priv)
508 mwl8k_release_fw(&priv->fw_ucode);
509 mwl8k_release_fw(&priv->fw_helper);
512 /* states for asynchronous f/w loading */
513 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context);
516 FW_STATE_LOADING_PREF,
517 FW_STATE_LOADING_ALT,
521 /* Request fw image */
522 static int mwl8k_request_fw(struct mwl8k_priv *priv,
523 const char *fname, const struct firmware **fw,
526 /* release current image */
528 mwl8k_release_fw(fw);
531 return reject_firmware_nowait(THIS_MODULE, 1, fname,
532 &priv->pdev->dev, GFP_KERNEL,
533 priv, mwl8k_fw_state_machine);
535 return reject_firmware(fw, fname, &priv->pdev->dev);
538 static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image,
541 struct mwl8k_device_info *di = priv->device_info;
544 if (di->helper_image != NULL) {
546 rc = mwl8k_request_fw(priv, di->helper_image,
547 &priv->fw_helper, true);
549 rc = mwl8k_request_fw(priv, di->helper_image,
550 &priv->fw_helper, false);
552 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
553 pci_name(priv->pdev), di->helper_image);
561 * if we get here, no helper image is needed. Skip the
562 * FW_STATE_INIT state.
564 priv->fw_state = FW_STATE_LOADING_PREF;
565 rc = mwl8k_request_fw(priv, fw_image,
569 rc = mwl8k_request_fw(priv, fw_image,
570 &priv->fw_ucode, false);
572 printk(KERN_ERR "%s: Error requesting firmware file %s\n",
573 pci_name(priv->pdev), fw_image);
574 mwl8k_release_fw(&priv->fw_helper);
581 struct mwl8k_cmd_pkt {
594 mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
596 void __iomem *regs = priv->regs;
600 dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE);
601 if (pci_dma_mapping_error(priv->pdev, dma_addr))
604 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
605 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
606 iowrite32(MWL8K_H2A_INT_DOORBELL,
607 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
608 iowrite32(MWL8K_H2A_INT_DUMMY,
609 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
615 int_code = ioread32(regs +
616 MWL8K_HIU_H2A_INTERRUPT_STATUS);
620 int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
621 if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
622 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
630 pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE);
632 return loops ? 0 : -ETIMEDOUT;
635 static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
636 const u8 *data, size_t length)
638 struct mwl8k_cmd_pkt *cmd;
642 cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL);
646 cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
653 int block_size = length > 256 ? 256 : length;
655 memcpy(cmd->payload, data + done, block_size);
656 cmd->length = cpu_to_le16(block_size);
658 rc = mwl8k_send_fw_load_cmd(priv, cmd,
659 sizeof(*cmd) + block_size);
664 length -= block_size;
669 rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd));
677 static int mwl8k_feed_fw_image(struct mwl8k_priv *priv,
678 const u8 *data, size_t length)
680 unsigned char *buffer;
681 int may_continue, rc = 0;
682 u32 done, prev_block_size;
684 buffer = kmalloc(1024, GFP_KERNEL);
691 while (may_continue > 0) {
694 block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH);
695 if (block_size & 1) {
699 done += prev_block_size;
700 length -= prev_block_size;
703 if (block_size > 1024 || block_size > length) {
713 if (block_size == 0) {
720 prev_block_size = block_size;
721 memcpy(buffer, data + done, block_size);
723 rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size);
728 if (!rc && length != 0)
736 static int mwl8k_load_firmware(struct ieee80211_hw *hw)
738 struct mwl8k_priv *priv = hw->priv;
739 const struct firmware *fw = priv->fw_ucode;
743 if (!memcmp(fw->data, "\x01\x00\x00\x00", 4) && !priv->is_8764) {
744 const struct firmware *helper = priv->fw_helper;
746 if (helper == NULL) {
747 printk(KERN_ERR "%s: helper image needed but none "
748 "given\n", pci_name(priv->pdev));
752 rc = mwl8k_load_fw_image(priv, helper->data, helper->size);
754 printk(KERN_ERR "%s: unable to load firmware "
755 "helper image\n", pci_name(priv->pdev));
760 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
763 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
765 rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
769 printk(KERN_ERR "%s: unable to load firmware image\n",
770 pci_name(priv->pdev));
774 iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR);
780 ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE);
781 if (ready_code == MWL8K_FWAP_READY) {
784 } else if (ready_code == MWL8K_FWSTA_READY) {
793 return loops ? 0 : -ETIMEDOUT;
797 /* DMA header used by firmware and hardware. */
798 struct mwl8k_dma_data {
800 struct ieee80211_hdr wh;
804 /* Routines to add/remove DMA header from skb. */
805 static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos)
807 struct mwl8k_dma_data *tr;
810 tr = (struct mwl8k_dma_data *)skb->data;
811 hdrlen = ieee80211_hdrlen(tr->wh.frame_control);
813 if (hdrlen != sizeof(tr->wh)) {
814 if (ieee80211_is_data_qos(tr->wh.frame_control)) {
815 memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2);
816 *((__le16 *)(tr->data - 2)) = qos;
818 memmove(tr->data - hdrlen, &tr->wh, hdrlen);
822 if (hdrlen != sizeof(*tr))
823 skb_pull(skb, sizeof(*tr) - hdrlen);
826 #define REDUCED_TX_HEADROOM 8
829 mwl8k_add_dma_header(struct mwl8k_priv *priv, struct sk_buff *skb,
830 int head_pad, int tail_pad)
832 struct ieee80211_hdr *wh;
835 struct mwl8k_dma_data *tr;
838 * Add a firmware DMA header; the firmware requires that we
839 * present a 2-byte payload length followed by a 4-address
840 * header (without QoS field), followed (optionally) by any
841 * WEP/ExtIV header (but only filled in for CCMP).
843 wh = (struct ieee80211_hdr *)skb->data;
845 hdrlen = ieee80211_hdrlen(wh->frame_control);
848 * Check if skb_resize is required because of
849 * tx_headroom adjustment.
851 if (priv->ap_fw && (hdrlen < (sizeof(struct ieee80211_cts)
852 + REDUCED_TX_HEADROOM))) {
853 if (pskb_expand_head(skb, REDUCED_TX_HEADROOM, 0, GFP_ATOMIC)) {
855 wiphy_err(priv->hw->wiphy,
856 "Failed to reallocate TX buffer\n");
859 skb->truesize += REDUCED_TX_HEADROOM;
862 reqd_hdrlen = sizeof(*tr) + head_pad;
864 if (hdrlen != reqd_hdrlen)
865 skb_push(skb, reqd_hdrlen - hdrlen);
867 if (ieee80211_is_data_qos(wh->frame_control))
868 hdrlen -= IEEE80211_QOS_CTL_LEN;
870 tr = (struct mwl8k_dma_data *)skb->data;
872 memmove(&tr->wh, wh, hdrlen);
873 if (hdrlen != sizeof(tr->wh))
874 memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen);
877 * Firmware length is the length of the fully formed "802.11
878 * payload". That is, everything except for the 802.11 header.
879 * This includes all crypto material including the MIC.
881 tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr) + tail_pad);
884 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv *priv,
887 struct ieee80211_hdr *wh;
888 struct ieee80211_tx_info *tx_info;
889 struct ieee80211_key_conf *key_conf;
893 wh = (struct ieee80211_hdr *)skb->data;
895 tx_info = IEEE80211_SKB_CB(skb);
898 if (ieee80211_is_data(wh->frame_control))
899 key_conf = tx_info->control.hw_key;
902 * Make sure the packet header is in the DMA header format (4-address
903 * without QoS), and add head & tail padding when HW crypto is enabled.
905 * We have the following trailer padding requirements:
906 * - WEP: 4 trailer bytes (ICV)
907 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
908 * - CCMP: 8 trailer bytes (MIC)
911 if (key_conf != NULL) {
912 head_pad = key_conf->iv_len;
913 switch (key_conf->cipher) {
914 case WLAN_CIPHER_SUITE_WEP40:
915 case WLAN_CIPHER_SUITE_WEP104:
918 case WLAN_CIPHER_SUITE_TKIP:
921 case WLAN_CIPHER_SUITE_CCMP:
926 mwl8k_add_dma_header(priv, skb, head_pad, data_pad);
930 * Packet reception for 88w8366/88w8764 AP firmware.
932 struct mwl8k_rxd_ap {
936 __le32 pkt_phys_addr;
937 __le32 next_rxd_phys_addr;
941 __le32 hw_noise_floor_info;
950 #define MWL8K_AP_RATE_INFO_MCS_FORMAT 0x80
951 #define MWL8K_AP_RATE_INFO_40MHZ 0x40
952 #define MWL8K_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
954 #define MWL8K_AP_RX_CTRL_OWNED_BY_HOST 0x80
956 /* 8366/8764 AP rx_status bits */
957 #define MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
958 #define MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
959 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
960 #define MWL8K_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
961 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
963 static void mwl8k_rxd_ap_init(void *_rxd, dma_addr_t next_dma_addr)
965 struct mwl8k_rxd_ap *rxd = _rxd;
967 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
968 rxd->rx_ctrl = MWL8K_AP_RX_CTRL_OWNED_BY_HOST;
971 static void mwl8k_rxd_ap_refill(void *_rxd, dma_addr_t addr, int len)
973 struct mwl8k_rxd_ap *rxd = _rxd;
975 rxd->pkt_len = cpu_to_le16(len);
976 rxd->pkt_phys_addr = cpu_to_le32(addr);
982 mwl8k_rxd_ap_process(void *_rxd, struct ieee80211_rx_status *status,
983 __le16 *qos, s8 *noise)
985 struct mwl8k_rxd_ap *rxd = _rxd;
987 if (!(rxd->rx_ctrl & MWL8K_AP_RX_CTRL_OWNED_BY_HOST))
991 memset(status, 0, sizeof(*status));
993 status->signal = -rxd->rssi;
994 *noise = -rxd->noise_floor;
996 if (rxd->rate & MWL8K_AP_RATE_INFO_MCS_FORMAT) {
997 status->flag |= RX_FLAG_HT;
998 if (rxd->rate & MWL8K_AP_RATE_INFO_40MHZ)
999 status->flag |= RX_FLAG_40MHZ;
1000 status->rate_idx = MWL8K_AP_RATE_INFO_RATEID(rxd->rate);
1004 for (i = 0; i < ARRAY_SIZE(mwl8k_rates_24); i++) {
1005 if (mwl8k_rates_24[i].hw_value == rxd->rate) {
1006 status->rate_idx = i;
1012 if (rxd->channel > 14) {
1013 status->band = IEEE80211_BAND_5GHZ;
1014 if (!(status->flag & RX_FLAG_HT))
1015 status->rate_idx -= 5;
1017 status->band = IEEE80211_BAND_2GHZ;
1019 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1022 *qos = rxd->qos_control;
1024 if ((rxd->rx_status != MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR) &&
1025 (rxd->rx_status & MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK) &&
1026 (rxd->rx_status & MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR))
1027 status->flag |= RX_FLAG_MMIC_ERROR;
1029 return le16_to_cpu(rxd->pkt_len);
1032 static struct rxd_ops rxd_ap_ops = {
1033 .rxd_size = sizeof(struct mwl8k_rxd_ap),
1034 .rxd_init = mwl8k_rxd_ap_init,
1035 .rxd_refill = mwl8k_rxd_ap_refill,
1036 .rxd_process = mwl8k_rxd_ap_process,
1040 * Packet reception for STA firmware.
1042 struct mwl8k_rxd_sta {
1046 __le32 pkt_phys_addr;
1047 __le32 next_rxd_phys_addr;
1059 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1060 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1061 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1062 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1063 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1064 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1066 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1067 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1068 /* ICV=0 or MIC=1 */
1069 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1070 /* Key is uploaded only in failure case */
1071 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1073 static void mwl8k_rxd_sta_init(void *_rxd, dma_addr_t next_dma_addr)
1075 struct mwl8k_rxd_sta *rxd = _rxd;
1077 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
1078 rxd->rx_ctrl = MWL8K_STA_RX_CTRL_OWNED_BY_HOST;
1081 static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len)
1083 struct mwl8k_rxd_sta *rxd = _rxd;
1085 rxd->pkt_len = cpu_to_le16(len);
1086 rxd->pkt_phys_addr = cpu_to_le32(addr);
1092 mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
1093 __le16 *qos, s8 *noise)
1095 struct mwl8k_rxd_sta *rxd = _rxd;
1098 if (!(rxd->rx_ctrl & MWL8K_STA_RX_CTRL_OWNED_BY_HOST))
1102 rate_info = le16_to_cpu(rxd->rate_info);
1104 memset(status, 0, sizeof(*status));
1106 status->signal = -rxd->rssi;
1107 *noise = -rxd->noise_level;
1108 status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info);
1109 status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info);
1111 if (rate_info & MWL8K_STA_RATE_INFO_SHORTPRE)
1112 status->flag |= RX_FLAG_SHORTPRE;
1113 if (rate_info & MWL8K_STA_RATE_INFO_40MHZ)
1114 status->flag |= RX_FLAG_40MHZ;
1115 if (rate_info & MWL8K_STA_RATE_INFO_SHORTGI)
1116 status->flag |= RX_FLAG_SHORT_GI;
1117 if (rate_info & MWL8K_STA_RATE_INFO_MCS_FORMAT)
1118 status->flag |= RX_FLAG_HT;
1120 if (rxd->channel > 14) {
1121 status->band = IEEE80211_BAND_5GHZ;
1122 if (!(status->flag & RX_FLAG_HT))
1123 status->rate_idx -= 5;
1125 status->band = IEEE80211_BAND_2GHZ;
1127 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1130 *qos = rxd->qos_control;
1131 if ((rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DECRYPT_ERROR) &&
1132 (rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DEC_ERR_TYPE))
1133 status->flag |= RX_FLAG_MMIC_ERROR;
1135 return le16_to_cpu(rxd->pkt_len);
1138 static struct rxd_ops rxd_sta_ops = {
1139 .rxd_size = sizeof(struct mwl8k_rxd_sta),
1140 .rxd_init = mwl8k_rxd_sta_init,
1141 .rxd_refill = mwl8k_rxd_sta_refill,
1142 .rxd_process = mwl8k_rxd_sta_process,
1146 #define MWL8K_RX_DESCS 256
1147 #define MWL8K_RX_MAXSZ 3800
1149 static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
1151 struct mwl8k_priv *priv = hw->priv;
1152 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1160 size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size;
1162 rxq->rxd = pci_zalloc_consistent(priv->pdev, size, &rxq->rxd_dma);
1163 if (rxq->rxd == NULL) {
1164 wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n");
1168 rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL);
1169 if (rxq->buf == NULL) {
1170 pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
1174 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1178 dma_addr_t next_dma_addr;
1180 desc_size = priv->rxd_ops->rxd_size;
1181 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
1184 if (nexti == MWL8K_RX_DESCS)
1186 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
1188 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
1194 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
1196 struct mwl8k_priv *priv = hw->priv;
1197 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1201 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
1202 struct sk_buff *skb;
1207 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
1211 addr = pci_map_single(priv->pdev, skb->data,
1212 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
1216 if (rxq->tail == MWL8K_RX_DESCS)
1218 rxq->buf[rx].skb = skb;
1219 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
1221 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
1222 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
1230 /* Must be called only when the card's reception is completely halted */
1231 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1233 struct mwl8k_priv *priv = hw->priv;
1234 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1237 if (rxq->rxd == NULL)
1240 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1241 if (rxq->buf[i].skb != NULL) {
1242 pci_unmap_single(priv->pdev,
1243 dma_unmap_addr(&rxq->buf[i], dma),
1244 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1245 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1247 kfree_skb(rxq->buf[i].skb);
1248 rxq->buf[i].skb = NULL;
1255 pci_free_consistent(priv->pdev,
1256 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1257 rxq->rxd, rxq->rxd_dma);
1263 * Scan a list of BSSIDs to process for finalize join.
1264 * Allows for extension to process multiple BSSIDs.
1267 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1269 return priv->capture_beacon &&
1270 ieee80211_is_beacon(wh->frame_control) &&
1271 ether_addr_equal_64bits(wh->addr3, priv->capture_bssid);
1274 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1275 struct sk_buff *skb)
1277 struct mwl8k_priv *priv = hw->priv;
1279 priv->capture_beacon = false;
1280 eth_zero_addr(priv->capture_bssid);
1283 * Use GFP_ATOMIC as rxq_process is called from
1284 * the primary interrupt handler, memory allocation call
1287 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1288 if (priv->beacon_skb != NULL)
1289 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1292 static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list,
1295 struct mwl8k_vif *mwl8k_vif;
1297 list_for_each_entry(mwl8k_vif,
1299 if (memcmp(bssid, mwl8k_vif->bssid,
1307 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1309 struct mwl8k_priv *priv = hw->priv;
1310 struct mwl8k_vif *mwl8k_vif = NULL;
1311 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1315 while (rxq->rxd_count && limit--) {
1316 struct sk_buff *skb;
1319 struct ieee80211_rx_status status;
1320 struct ieee80211_hdr *wh;
1323 skb = rxq->buf[rxq->head].skb;
1327 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1329 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1334 rxq->buf[rxq->head].skb = NULL;
1336 pci_unmap_single(priv->pdev,
1337 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1338 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1339 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1342 if (rxq->head == MWL8K_RX_DESCS)
1347 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1350 * Check for a pending join operation. Save a
1351 * copy of the beacon and schedule a tasklet to
1352 * send a FINALIZE_JOIN command to the firmware.
1354 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1355 mwl8k_save_beacon(hw, skb);
1357 if (ieee80211_has_protected(wh->frame_control)) {
1359 /* Check if hw crypto has been enabled for
1360 * this bss. If yes, set the status flags
1363 mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list,
1366 if (mwl8k_vif != NULL &&
1367 mwl8k_vif->is_hw_crypto_enabled) {
1369 * When MMIC ERROR is encountered
1370 * by the firmware, payload is
1371 * dropped and only 32 bytes of
1372 * mwl8k Firmware header is sent
1375 * We need to add four bytes of
1376 * key information. In it
1377 * MAC80211 expects keyidx set to
1378 * 0 for triggering Counter
1379 * Measure of MMIC failure.
1381 if (status.flag & RX_FLAG_MMIC_ERROR) {
1382 struct mwl8k_dma_data *tr;
1383 tr = (struct mwl8k_dma_data *)skb->data;
1384 memset((void *)&(tr->data), 0, 4);
1388 if (!ieee80211_is_auth(wh->frame_control))
1389 status.flag |= RX_FLAG_IV_STRIPPED |
1391 RX_FLAG_MMIC_STRIPPED;
1395 skb_put(skb, pkt_len);
1396 mwl8k_remove_dma_header(skb, qos);
1397 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1398 ieee80211_rx_irqsafe(hw, skb);
1408 * Packet transmission.
1411 #define MWL8K_TXD_STATUS_OK 0x00000001
1412 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1413 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1414 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1415 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1417 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1418 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1419 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1420 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1421 #define MWL8K_QOS_EOSP 0x0010
1423 struct mwl8k_tx_desc {
1428 __le32 pkt_phys_addr;
1430 __u8 dest_MAC_addr[ETH_ALEN];
1431 __le32 next_txd_phys_addr;
1438 #define MWL8K_TX_DESCS 128
1440 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1442 struct mwl8k_priv *priv = hw->priv;
1443 struct mwl8k_tx_queue *txq = priv->txq + index;
1451 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1453 txq->txd = pci_zalloc_consistent(priv->pdev, size, &txq->txd_dma);
1454 if (txq->txd == NULL) {
1455 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1459 txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL);
1460 if (txq->skb == NULL) {
1461 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1466 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1467 struct mwl8k_tx_desc *tx_desc;
1470 tx_desc = txq->txd + i;
1471 nexti = (i + 1) % MWL8K_TX_DESCS;
1473 tx_desc->status = 0;
1474 tx_desc->next_txd_phys_addr =
1475 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1481 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1483 iowrite32(MWL8K_H2A_INT_PPA_READY,
1484 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1485 iowrite32(MWL8K_H2A_INT_DUMMY,
1486 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1487 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1490 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1492 struct mwl8k_priv *priv = hw->priv;
1495 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
1496 struct mwl8k_tx_queue *txq = priv->txq + i;
1502 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1503 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1506 status = le32_to_cpu(tx_desc->status);
1507 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1512 if (tx_desc->pkt_len == 0)
1516 wiphy_err(hw->wiphy,
1517 "txq[%d] len=%d head=%d tail=%d "
1518 "fw_owned=%d drv_owned=%d unused=%d\n",
1520 txq->len, txq->head, txq->tail,
1521 fw_owned, drv_owned, unused);
1526 * Must be called with priv->fw_mutex held and tx queues stopped.
1528 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1530 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1532 struct mwl8k_priv *priv = hw->priv;
1533 DECLARE_COMPLETION_ONSTACK(tx_wait);
1539 /* Since fw restart is in progress, allow only the firmware
1540 * commands from the restart code and block the other
1541 * commands since they are going to fail in any case since
1542 * the firmware has crashed
1544 if (priv->hw_restart_in_progress) {
1545 if (priv->hw_restart_owner == current)
1551 if (atomic_read(&priv->watchdog_event_pending))
1555 * The TX queues are stopped at this point, so this test
1556 * doesn't need to take ->tx_lock.
1558 if (!priv->pending_tx_pkts)
1564 spin_lock_bh(&priv->tx_lock);
1565 priv->tx_wait = &tx_wait;
1568 unsigned long timeout;
1570 oldcount = priv->pending_tx_pkts;
1572 spin_unlock_bh(&priv->tx_lock);
1573 timeout = wait_for_completion_timeout(&tx_wait,
1574 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1576 if (atomic_read(&priv->watchdog_event_pending)) {
1577 spin_lock_bh(&priv->tx_lock);
1578 priv->tx_wait = NULL;
1579 spin_unlock_bh(&priv->tx_lock);
1583 spin_lock_bh(&priv->tx_lock);
1585 if (timeout || !priv->pending_tx_pkts) {
1586 WARN_ON(priv->pending_tx_pkts);
1588 wiphy_notice(hw->wiphy, "tx rings drained\n");
1593 mwl8k_tx_start(priv);
1598 if (priv->pending_tx_pkts < oldcount) {
1599 wiphy_notice(hw->wiphy,
1600 "waiting for tx rings to drain (%d -> %d pkts)\n",
1601 oldcount, priv->pending_tx_pkts);
1606 priv->tx_wait = NULL;
1608 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1609 MWL8K_TX_WAIT_TIMEOUT_MS);
1610 mwl8k_dump_tx_rings(hw);
1611 priv->hw_restart_in_progress = true;
1612 ieee80211_queue_work(hw, &priv->fw_reload);
1616 priv->tx_wait = NULL;
1617 spin_unlock_bh(&priv->tx_lock);
1622 #define MWL8K_TXD_SUCCESS(status) \
1623 ((status) & (MWL8K_TXD_STATUS_OK | \
1624 MWL8K_TXD_STATUS_OK_RETRY | \
1625 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1627 static int mwl8k_tid_queue_mapping(u8 tid)
1634 return IEEE80211_AC_BE;
1637 return IEEE80211_AC_BK;
1640 return IEEE80211_AC_VI;
1643 return IEEE80211_AC_VO;
1649 /* The firmware will fill in the rate information
1650 * for each packet that gets queued in the hardware
1651 * and these macros will interpret that info.
1654 #define RI_FORMAT(a) (a & 0x0001)
1655 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1658 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1660 struct mwl8k_priv *priv = hw->priv;
1661 struct mwl8k_tx_queue *txq = priv->txq + index;
1665 while (txq->len > 0 && limit--) {
1667 struct mwl8k_tx_desc *tx_desc;
1670 struct sk_buff *skb;
1671 struct ieee80211_tx_info *info;
1673 struct ieee80211_sta *sta;
1674 struct mwl8k_sta *sta_info = NULL;
1676 struct ieee80211_hdr *wh;
1679 tx_desc = txq->txd + tx;
1681 status = le32_to_cpu(tx_desc->status);
1683 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1687 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1690 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1691 BUG_ON(txq->len == 0);
1693 priv->pending_tx_pkts--;
1695 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1696 size = le16_to_cpu(tx_desc->pkt_len);
1698 txq->skb[tx] = NULL;
1700 BUG_ON(skb == NULL);
1701 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1703 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1705 wh = (struct ieee80211_hdr *) skb->data;
1707 /* Mark descriptor as unused */
1708 tx_desc->pkt_phys_addr = 0;
1709 tx_desc->pkt_len = 0;
1711 info = IEEE80211_SKB_CB(skb);
1712 if (ieee80211_is_data(wh->frame_control)) {
1714 sta = ieee80211_find_sta_by_ifaddr(hw, wh->addr1,
1717 sta_info = MWL8K_STA(sta);
1718 BUG_ON(sta_info == NULL);
1719 rate_info = le16_to_cpu(tx_desc->rate_info);
1720 /* If rate is < 6.5 Mpbs for an ht station
1721 * do not form an ampdu. If the station is a
1722 * legacy station (format = 0), do not form an
1725 if (RI_RATE_ID_MCS(rate_info) < 1 ||
1726 RI_FORMAT(rate_info) == 0) {
1727 sta_info->is_ampdu_allowed = false;
1729 sta_info->is_ampdu_allowed = true;
1735 ieee80211_tx_info_clear_status(info);
1737 /* Rate control is happening in the firmware.
1738 * Ensure no tx rate is being reported.
1740 info->status.rates[0].idx = -1;
1741 info->status.rates[0].count = 1;
1743 if (MWL8K_TXD_SUCCESS(status))
1744 info->flags |= IEEE80211_TX_STAT_ACK;
1746 ieee80211_tx_status_irqsafe(hw, skb);
1754 /* must be called only when the card's transmit is completely halted */
1755 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1757 struct mwl8k_priv *priv = hw->priv;
1758 struct mwl8k_tx_queue *txq = priv->txq + index;
1760 if (txq->txd == NULL)
1763 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1768 pci_free_consistent(priv->pdev,
1769 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1770 txq->txd, txq->txd_dma);
1774 /* caller must hold priv->stream_lock when calling the stream functions */
1775 static struct mwl8k_ampdu_stream *
1776 mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid)
1778 struct mwl8k_ampdu_stream *stream;
1779 struct mwl8k_priv *priv = hw->priv;
1782 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1783 stream = &priv->ampdu[i];
1784 if (stream->state == AMPDU_NO_STREAM) {
1786 stream->state = AMPDU_STREAM_NEW;
1789 wiphy_debug(hw->wiphy, "Added a new stream for %pM %d",
1798 mwl8k_start_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1802 /* if the stream has already been started, don't start it again */
1803 if (stream->state != AMPDU_STREAM_NEW)
1805 ret = ieee80211_start_tx_ba_session(stream->sta, stream->tid, 0);
1807 wiphy_debug(hw->wiphy, "Failed to start stream for %pM %d: "
1808 "%d\n", stream->sta->addr, stream->tid, ret);
1810 wiphy_debug(hw->wiphy, "Started stream for %pM %d\n",
1811 stream->sta->addr, stream->tid);
1816 mwl8k_remove_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1818 wiphy_debug(hw->wiphy, "Remove stream for %pM %d\n", stream->sta->addr,
1820 memset(stream, 0, sizeof(*stream));
1823 static struct mwl8k_ampdu_stream *
1824 mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid)
1826 struct mwl8k_priv *priv = hw->priv;
1829 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1830 struct mwl8k_ampdu_stream *stream;
1831 stream = &priv->ampdu[i];
1832 if (stream->state == AMPDU_NO_STREAM)
1834 if (!memcmp(stream->sta->addr, addr, ETH_ALEN) &&
1841 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1842 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta *sta, u8 tid)
1844 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1845 struct tx_traffic_info *tx_stats;
1847 BUG_ON(tid >= MWL8K_MAX_TID);
1848 tx_stats = &sta_info->tx_stats[tid];
1850 return sta_info->is_ampdu_allowed &&
1851 tx_stats->pkts > MWL8K_AMPDU_PACKET_THRESHOLD;
1854 static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
1856 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1857 struct tx_traffic_info *tx_stats;
1859 BUG_ON(tid >= MWL8K_MAX_TID);
1860 tx_stats = &sta_info->tx_stats[tid];
1862 if (tx_stats->start_time == 0)
1863 tx_stats->start_time = jiffies;
1865 /* reset the packet count after each second elapses. If the number of
1866 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1867 * an ampdu stream to be started.
1869 if (jiffies - tx_stats->start_time > HZ) {
1871 tx_stats->start_time = 0;
1876 /* The hardware ampdu queues start from 5.
1877 * txpriorities for ampdu queues are
1878 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1879 * and queue 3 is lowest (queue 4 is reserved)
1884 mwl8k_txq_xmit(struct ieee80211_hw *hw,
1886 struct ieee80211_sta *sta,
1887 struct sk_buff *skb)
1889 struct mwl8k_priv *priv = hw->priv;
1890 struct ieee80211_tx_info *tx_info;
1891 struct mwl8k_vif *mwl8k_vif;
1892 struct ieee80211_hdr *wh;
1893 struct mwl8k_tx_queue *txq;
1894 struct mwl8k_tx_desc *tx;
1901 struct mwl8k_ampdu_stream *stream = NULL;
1902 bool start_ba_session = false;
1903 bool mgmtframe = false;
1904 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1905 bool eapol_frame = false;
1907 wh = (struct ieee80211_hdr *)skb->data;
1908 if (ieee80211_is_data_qos(wh->frame_control))
1909 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1913 if (skb->protocol == cpu_to_be16(ETH_P_PAE))
1916 if (ieee80211_is_mgmt(wh->frame_control))
1920 mwl8k_encapsulate_tx_frame(priv, skb);
1922 mwl8k_add_dma_header(priv, skb, 0, 0);
1924 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1926 tx_info = IEEE80211_SKB_CB(skb);
1927 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1929 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1930 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1931 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1932 mwl8k_vif->seqno += 0x10;
1935 /* Setup firmware control bit fields for each frame type. */
1938 if (ieee80211_is_mgmt(wh->frame_control) ||
1939 ieee80211_is_ctl(wh->frame_control)) {
1941 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1942 } else if (ieee80211_is_data(wh->frame_control)) {
1944 if (is_multicast_ether_addr(wh->addr1))
1945 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1947 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1948 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1949 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1951 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1954 /* Queue ADDBA request in the respective data queue. While setting up
1955 * the ampdu stream, mac80211 queues further packets for that
1956 * particular ra/tid pair. However, packets piled up in the hardware
1957 * for that ra/tid pair will still go out. ADDBA request and the
1958 * related data packets going out from different queues asynchronously
1959 * will cause a shift in the receiver window which might result in
1960 * ampdu packets getting dropped at the receiver after the stream has
1963 if (unlikely(ieee80211_is_action(wh->frame_control) &&
1964 mgmt->u.action.category == WLAN_CATEGORY_BACK &&
1965 mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ &&
1967 u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1968 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1969 index = mwl8k_tid_queue_mapping(tid);
1974 if (priv->ap_fw && sta && sta->ht_cap.ht_supported && !eapol_frame &&
1975 ieee80211_is_data_qos(wh->frame_control)) {
1977 mwl8k_tx_count_packet(sta, tid);
1978 spin_lock(&priv->stream_lock);
1979 stream = mwl8k_lookup_stream(hw, sta->addr, tid);
1980 if (stream != NULL) {
1981 if (stream->state == AMPDU_STREAM_ACTIVE) {
1982 WARN_ON(!(qos & MWL8K_QOS_ACK_POLICY_BLOCKACK));
1983 txpriority = (BA_QUEUE + stream->idx) %
1985 if (stream->idx <= 1)
1986 index = stream->idx +
1987 MWL8K_TX_WMM_QUEUES;
1989 } else if (stream->state == AMPDU_STREAM_NEW) {
1990 /* We get here if the driver sends us packets
1991 * after we've initiated a stream, but before
1992 * our ampdu_action routine has been called
1993 * with IEEE80211_AMPDU_TX_START to get the SSN
1994 * for the ADDBA request. So this packet can
1995 * go out with no risk of sequence number
1996 * mismatch. No special handling is required.
1999 /* Drop packets that would go out after the
2000 * ADDBA request was sent but before the ADDBA
2001 * response is received. If we don't do this,
2002 * the recipient would probably receive it
2003 * after the ADDBA request with SSN 0. This
2004 * will cause the recipient's BA receive window
2005 * to shift, which would cause the subsequent
2006 * packets in the BA stream to be discarded.
2007 * mac80211 queues our packets for us in this
2008 * case, so this is really just a safety check.
2010 wiphy_warn(hw->wiphy,
2011 "Cannot send packet while ADDBA "
2012 "dialog is underway.\n");
2013 spin_unlock(&priv->stream_lock);
2018 /* Defer calling mwl8k_start_stream so that the current
2019 * skb can go out before the ADDBA request. This
2020 * prevents sequence number mismatch at the recepient
2021 * as described above.
2023 if (mwl8k_ampdu_allowed(sta, tid)) {
2024 stream = mwl8k_add_stream(hw, sta, tid);
2026 start_ba_session = true;
2029 spin_unlock(&priv->stream_lock);
2031 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
2032 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
2035 dma = pci_map_single(priv->pdev, skb->data,
2036 skb->len, PCI_DMA_TODEVICE);
2038 if (pci_dma_mapping_error(priv->pdev, dma)) {
2039 wiphy_debug(hw->wiphy,
2040 "failed to dma map skb, dropping TX frame.\n");
2041 if (start_ba_session) {
2042 spin_lock(&priv->stream_lock);
2043 mwl8k_remove_stream(hw, stream);
2044 spin_unlock(&priv->stream_lock);
2050 spin_lock_bh(&priv->tx_lock);
2052 txq = priv->txq + index;
2054 /* Mgmt frames that go out frequently are probe
2055 * responses. Other mgmt frames got out relatively
2056 * infrequently. Hence reserve 2 buffers so that
2057 * other mgmt frames do not get dropped due to an
2058 * already queued probe response in one of the
2062 if (txq->len >= MWL8K_TX_DESCS - 2) {
2063 if (!mgmtframe || txq->len == MWL8K_TX_DESCS) {
2064 if (start_ba_session) {
2065 spin_lock(&priv->stream_lock);
2066 mwl8k_remove_stream(hw, stream);
2067 spin_unlock(&priv->stream_lock);
2069 mwl8k_tx_start(priv);
2070 spin_unlock_bh(&priv->tx_lock);
2071 pci_unmap_single(priv->pdev, dma, skb->len,
2078 BUG_ON(txq->skb[txq->tail] != NULL);
2079 txq->skb[txq->tail] = skb;
2081 tx = txq->txd + txq->tail;
2082 tx->data_rate = txdatarate;
2083 tx->tx_priority = txpriority;
2084 tx->qos_control = cpu_to_le16(qos);
2085 tx->pkt_phys_addr = cpu_to_le32(dma);
2086 tx->pkt_len = cpu_to_le16(skb->len);
2088 if (!priv->ap_fw && sta != NULL)
2089 tx->peer_id = MWL8K_STA(sta)->peer_id;
2093 if (priv->ap_fw && ieee80211_is_data(wh->frame_control) && !eapol_frame)
2094 tx->timestamp = cpu_to_le32(ioread32(priv->regs +
2095 MWL8K_HW_TIMER_REGISTER));
2100 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
2103 priv->pending_tx_pkts++;
2106 if (txq->tail == MWL8K_TX_DESCS)
2109 mwl8k_tx_start(priv);
2111 spin_unlock_bh(&priv->tx_lock);
2113 /* Initiate the ampdu session here */
2114 if (start_ba_session) {
2115 spin_lock(&priv->stream_lock);
2116 if (mwl8k_start_stream(hw, stream))
2117 mwl8k_remove_stream(hw, stream);
2118 spin_unlock(&priv->stream_lock);
2126 * We have the following requirements for issuing firmware commands:
2127 * - Some commands require that the packet transmit path is idle when
2128 * the command is issued. (For simplicity, we'll just quiesce the
2129 * transmit path for every command.)
2130 * - There are certain sequences of commands that need to be issued to
2131 * the hardware sequentially, with no other intervening commands.
2133 * This leads to an implementation of a "firmware lock" as a mutex that
2134 * can be taken recursively, and which is taken by both the low-level
2135 * command submission function (mwl8k_post_cmd) as well as any users of
2136 * that function that require issuing of an atomic sequence of commands,
2137 * and quiesces the transmit path whenever it's taken.
2139 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
2141 struct mwl8k_priv *priv = hw->priv;
2143 if (priv->fw_mutex_owner != current) {
2146 mutex_lock(&priv->fw_mutex);
2147 ieee80211_stop_queues(hw);
2149 rc = mwl8k_tx_wait_empty(hw);
2151 if (!priv->hw_restart_in_progress)
2152 ieee80211_wake_queues(hw);
2154 mutex_unlock(&priv->fw_mutex);
2159 priv->fw_mutex_owner = current;
2162 priv->fw_mutex_depth++;
2167 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
2169 struct mwl8k_priv *priv = hw->priv;
2171 if (!--priv->fw_mutex_depth) {
2172 if (!priv->hw_restart_in_progress)
2173 ieee80211_wake_queues(hw);
2175 priv->fw_mutex_owner = NULL;
2176 mutex_unlock(&priv->fw_mutex);
2180 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable,
2184 * Command processing.
2187 /* Timeout firmware commands after 10s */
2188 #define MWL8K_CMD_TIMEOUT_MS 10000
2190 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
2192 DECLARE_COMPLETION_ONSTACK(cmd_wait);
2193 struct mwl8k_priv *priv = hw->priv;
2194 void __iomem *regs = priv->regs;
2195 dma_addr_t dma_addr;
2196 unsigned int dma_size;
2198 unsigned long timeout = 0;
2202 wiphy_dbg(hw->wiphy, "Posting %s [%d]\n",
2203 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), cmd->macid);
2205 /* Before posting firmware commands that could change the hardware
2206 * characteristics, make sure that all BSSes are stopped temporary.
2207 * Enable these stopped BSSes after completion of the commands
2210 rc = mwl8k_fw_lock(hw);
2214 if (priv->ap_fw && priv->running_bsses) {
2215 switch (le16_to_cpu(cmd->code)) {
2216 case MWL8K_CMD_SET_RF_CHANNEL:
2217 case MWL8K_CMD_RADIO_CONTROL:
2218 case MWL8K_CMD_RF_TX_POWER:
2219 case MWL8K_CMD_TX_POWER:
2220 case MWL8K_CMD_RF_ANTENNA:
2221 case MWL8K_CMD_RTS_THRESHOLD:
2222 case MWL8K_CMD_MIMO_CONFIG:
2223 bitmap = priv->running_bsses;
2224 mwl8k_enable_bsses(hw, false, bitmap);
2229 cmd->result = (__force __le16) 0xffff;
2230 dma_size = le16_to_cpu(cmd->length);
2231 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
2232 PCI_DMA_BIDIRECTIONAL);
2233 if (pci_dma_mapping_error(priv->pdev, dma_addr))
2236 priv->hostcmd_wait = &cmd_wait;
2237 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
2238 iowrite32(MWL8K_H2A_INT_DOORBELL,
2239 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2240 iowrite32(MWL8K_H2A_INT_DUMMY,
2241 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2243 timeout = wait_for_completion_timeout(&cmd_wait,
2244 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
2246 priv->hostcmd_wait = NULL;
2249 pci_unmap_single(priv->pdev, dma_addr, dma_size,
2250 PCI_DMA_BIDIRECTIONAL);
2253 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
2254 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2255 MWL8K_CMD_TIMEOUT_MS);
2260 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
2262 rc = cmd->result ? -EINVAL : 0;
2264 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
2265 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2266 le16_to_cpu(cmd->result));
2268 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
2269 mwl8k_cmd_name(cmd->code,
2275 mwl8k_enable_bsses(hw, true, bitmap);
2277 mwl8k_fw_unlock(hw);
2282 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
2283 struct ieee80211_vif *vif,
2284 struct mwl8k_cmd_pkt *cmd)
2287 cmd->macid = MWL8K_VIF(vif)->macid;
2288 return mwl8k_post_cmd(hw, cmd);
2292 * Setup code shared between STA and AP firmware images.
2294 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
2296 struct mwl8k_priv *priv = hw->priv;
2298 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
2299 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
2301 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
2302 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
2304 priv->band_24.band = IEEE80211_BAND_2GHZ;
2305 priv->band_24.channels = priv->channels_24;
2306 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
2307 priv->band_24.bitrates = priv->rates_24;
2308 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
2310 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
2313 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
2315 struct mwl8k_priv *priv = hw->priv;
2317 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
2318 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
2320 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
2321 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
2323 priv->band_50.band = IEEE80211_BAND_5GHZ;
2324 priv->band_50.channels = priv->channels_50;
2325 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
2326 priv->band_50.bitrates = priv->rates_50;
2327 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
2329 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
2333 * CMD_GET_HW_SPEC (STA version).
2335 struct mwl8k_cmd_get_hw_spec_sta {
2336 struct mwl8k_cmd_pkt header;
2338 __u8 host_interface;
2340 __u8 perm_addr[ETH_ALEN];
2345 __u8 mcs_bitmap[16];
2346 __le32 rx_queue_ptr;
2347 __le32 num_tx_queues;
2348 __le32 tx_queue_ptrs[MWL8K_TX_WMM_QUEUES];
2350 __le32 num_tx_desc_per_queue;
2354 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2355 #define MWL8K_CAP_GREENFIELD 0x08000000
2356 #define MWL8K_CAP_AMPDU 0x04000000
2357 #define MWL8K_CAP_RX_STBC 0x01000000
2358 #define MWL8K_CAP_TX_STBC 0x00800000
2359 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2360 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2361 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2362 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2363 #define MWL8K_CAP_DELAY_BA 0x00003000
2364 #define MWL8K_CAP_MIMO 0x00000200
2365 #define MWL8K_CAP_40MHZ 0x00000100
2366 #define MWL8K_CAP_BAND_MASK 0x00000007
2367 #define MWL8K_CAP_5GHZ 0x00000004
2368 #define MWL8K_CAP_2GHZ4 0x00000001
2371 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
2372 struct ieee80211_supported_band *band, u32 cap)
2377 band->ht_cap.ht_supported = 1;
2379 if (cap & MWL8K_CAP_MAX_AMSDU)
2380 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
2381 if (cap & MWL8K_CAP_GREENFIELD)
2382 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
2383 if (cap & MWL8K_CAP_AMPDU) {
2384 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2385 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2386 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2388 if (cap & MWL8K_CAP_RX_STBC)
2389 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
2390 if (cap & MWL8K_CAP_TX_STBC)
2391 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
2392 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
2393 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
2394 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
2395 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
2396 if (cap & MWL8K_CAP_DELAY_BA)
2397 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
2398 if (cap & MWL8K_CAP_40MHZ)
2399 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2401 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
2402 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
2404 band->ht_cap.mcs.rx_mask[0] = 0xff;
2405 if (rx_streams >= 2)
2406 band->ht_cap.mcs.rx_mask[1] = 0xff;
2407 if (rx_streams >= 3)
2408 band->ht_cap.mcs.rx_mask[2] = 0xff;
2409 band->ht_cap.mcs.rx_mask[4] = 0x01;
2410 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2412 if (rx_streams != tx_streams) {
2413 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
2414 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
2415 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
2420 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
2422 struct mwl8k_priv *priv = hw->priv;
2427 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
2428 mwl8k_setup_2ghz_band(hw);
2429 if (caps & MWL8K_CAP_MIMO)
2430 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
2433 if (caps & MWL8K_CAP_5GHZ) {
2434 mwl8k_setup_5ghz_band(hw);
2435 if (caps & MWL8K_CAP_MIMO)
2436 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
2442 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
2444 struct mwl8k_priv *priv = hw->priv;
2445 struct mwl8k_cmd_get_hw_spec_sta *cmd;
2449 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2453 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2454 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2456 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2457 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2458 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2459 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2460 for (i = 0; i < mwl8k_tx_queues(priv); i++)
2461 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
2462 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2463 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2465 rc = mwl8k_post_cmd(hw, &cmd->header);
2468 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2469 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2470 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2471 priv->hw_rev = cmd->hw_rev;
2472 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2473 priv->ap_macids_supported = 0x00000000;
2474 priv->sta_macids_supported = 0x00000001;
2482 * CMD_GET_HW_SPEC (AP version).
2484 struct mwl8k_cmd_get_hw_spec_ap {
2485 struct mwl8k_cmd_pkt header;
2487 __u8 host_interface;
2490 __u8 perm_addr[ETH_ALEN];
2501 __le32 fw_api_version;
2503 __le32 num_of_ampdu_queues;
2504 __le32 wcbbase_ampdu[MWL8K_MAX_AMPDU_QUEUES];
2507 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2509 struct mwl8k_priv *priv = hw->priv;
2510 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2514 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2518 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2519 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2521 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2522 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2524 rc = mwl8k_post_cmd(hw, &cmd->header);
2529 api_version = le32_to_cpu(cmd->fw_api_version);
2530 if (priv->device_info->fw_api_ap != api_version) {
2531 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2532 " Expected %d got %d.\n", MWL8K_NAME,
2533 priv->device_info->part_name,
2534 priv->device_info->fw_api_ap,
2539 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2540 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2541 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2542 priv->hw_rev = cmd->hw_rev;
2543 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2544 priv->ap_macids_supported = 0x000000ff;
2545 priv->sta_macids_supported = 0x00000100;
2546 priv->num_ampdu_queues = le32_to_cpu(cmd->num_of_ampdu_queues);
2547 if (priv->num_ampdu_queues > MWL8K_MAX_AMPDU_QUEUES) {
2548 wiphy_warn(hw->wiphy, "fw reported %d ampdu queues"
2549 " but we only support %d.\n",
2550 priv->num_ampdu_queues,
2551 MWL8K_MAX_AMPDU_QUEUES);
2552 priv->num_ampdu_queues = MWL8K_MAX_AMPDU_QUEUES;
2554 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2555 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2557 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2558 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2560 priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2561 priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2562 priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2563 priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2565 for (i = 0; i < priv->num_ampdu_queues; i++)
2566 priv->txq_offset[i + MWL8K_TX_WMM_QUEUES] =
2567 le32_to_cpu(cmd->wcbbase_ampdu[i]) & 0xffff;
2578 struct mwl8k_cmd_set_hw_spec {
2579 struct mwl8k_cmd_pkt header;
2581 __u8 host_interface;
2583 __u8 perm_addr[ETH_ALEN];
2588 __le32 rx_queue_ptr;
2589 __le32 num_tx_queues;
2590 __le32 tx_queue_ptrs[MWL8K_MAX_TX_QUEUES];
2592 __le32 num_tx_desc_per_queue;
2596 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2597 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2598 * the packets that are queued for more than 500ms, will be dropped in the
2599 * hardware. This helps minimizing the issues caused due to head-of-line
2600 * blocking where a slow client can hog the bandwidth and affect traffic to a
2603 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2604 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2605 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2606 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2607 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2609 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2611 struct mwl8k_priv *priv = hw->priv;
2612 struct mwl8k_cmd_set_hw_spec *cmd;
2616 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2620 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2621 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2623 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2624 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2625 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2628 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2629 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2630 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2631 * priority is interpreted the right way in firmware.
2633 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
2634 int j = mwl8k_tx_queues(priv) - 1 - i;
2635 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2638 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2639 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2640 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON |
2641 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY |
2642 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR);
2643 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2644 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2646 rc = mwl8k_post_cmd(hw, &cmd->header);
2653 * CMD_MAC_MULTICAST_ADR.
2655 struct mwl8k_cmd_mac_multicast_adr {
2656 struct mwl8k_cmd_pkt header;
2659 __u8 addr[0][ETH_ALEN];
2662 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2663 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2664 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2665 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2667 static struct mwl8k_cmd_pkt *
2668 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2669 struct netdev_hw_addr_list *mc_list)
2671 struct mwl8k_priv *priv = hw->priv;
2672 struct mwl8k_cmd_mac_multicast_adr *cmd;
2677 mc_count = netdev_hw_addr_list_count(mc_list);
2679 if (allmulti || mc_count > priv->num_mcaddrs) {
2684 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2686 cmd = kzalloc(size, GFP_ATOMIC);
2690 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2691 cmd->header.length = cpu_to_le16(size);
2692 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2693 MWL8K_ENABLE_RX_BROADCAST);
2696 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2697 } else if (mc_count) {
2698 struct netdev_hw_addr *ha;
2701 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2702 cmd->numaddr = cpu_to_le16(mc_count);
2703 netdev_hw_addr_list_for_each(ha, mc_list) {
2704 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2708 return &cmd->header;
2714 struct mwl8k_cmd_get_stat {
2715 struct mwl8k_cmd_pkt header;
2719 #define MWL8K_STAT_ACK_FAILURE 9
2720 #define MWL8K_STAT_RTS_FAILURE 12
2721 #define MWL8K_STAT_FCS_ERROR 24
2722 #define MWL8K_STAT_RTS_SUCCESS 11
2724 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2725 struct ieee80211_low_level_stats *stats)
2727 struct mwl8k_cmd_get_stat *cmd;
2730 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2734 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2735 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2737 rc = mwl8k_post_cmd(hw, &cmd->header);
2739 stats->dot11ACKFailureCount =
2740 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2741 stats->dot11RTSFailureCount =
2742 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2743 stats->dot11FCSErrorCount =
2744 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2745 stats->dot11RTSSuccessCount =
2746 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2754 * CMD_RADIO_CONTROL.
2756 struct mwl8k_cmd_radio_control {
2757 struct mwl8k_cmd_pkt header;
2764 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2766 struct mwl8k_priv *priv = hw->priv;
2767 struct mwl8k_cmd_radio_control *cmd;
2770 if (enable == priv->radio_on && !force)
2773 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2777 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2778 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2779 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2780 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2781 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2783 rc = mwl8k_post_cmd(hw, &cmd->header);
2787 priv->radio_on = enable;
2792 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2794 return mwl8k_cmd_radio_control(hw, 0, 0);
2797 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2799 return mwl8k_cmd_radio_control(hw, 1, 0);
2803 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2805 struct mwl8k_priv *priv = hw->priv;
2807 priv->radio_short_preamble = short_preamble;
2809 return mwl8k_cmd_radio_control(hw, 1, 1);
2815 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2817 struct mwl8k_cmd_rf_tx_power {
2818 struct mwl8k_cmd_pkt header;
2820 __le16 support_level;
2821 __le16 current_level;
2823 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2826 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2828 struct mwl8k_cmd_rf_tx_power *cmd;
2831 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2835 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2836 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2837 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2838 cmd->support_level = cpu_to_le16(dBm);
2840 rc = mwl8k_post_cmd(hw, &cmd->header);
2849 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2851 struct mwl8k_cmd_tx_power {
2852 struct mwl8k_cmd_pkt header;
2858 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2861 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2862 struct ieee80211_conf *conf,
2865 struct ieee80211_channel *channel = conf->chandef.chan;
2866 enum nl80211_channel_type channel_type =
2867 cfg80211_get_chandef_type(&conf->chandef);
2868 struct mwl8k_cmd_tx_power *cmd;
2872 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2876 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2877 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2878 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2880 if (channel->band == IEEE80211_BAND_2GHZ)
2881 cmd->band = cpu_to_le16(0x1);
2882 else if (channel->band == IEEE80211_BAND_5GHZ)
2883 cmd->band = cpu_to_le16(0x4);
2885 cmd->channel = cpu_to_le16(channel->hw_value);
2887 if (channel_type == NL80211_CHAN_NO_HT ||
2888 channel_type == NL80211_CHAN_HT20) {
2889 cmd->bw = cpu_to_le16(0x2);
2891 cmd->bw = cpu_to_le16(0x4);
2892 if (channel_type == NL80211_CHAN_HT40MINUS)
2893 cmd->sub_ch = cpu_to_le16(0x3);
2894 else if (channel_type == NL80211_CHAN_HT40PLUS)
2895 cmd->sub_ch = cpu_to_le16(0x1);
2898 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2899 cmd->power_level_list[i] = cpu_to_le16(pwr);
2901 rc = mwl8k_post_cmd(hw, &cmd->header);
2910 struct mwl8k_cmd_rf_antenna {
2911 struct mwl8k_cmd_pkt header;
2916 #define MWL8K_RF_ANTENNA_RX 1
2917 #define MWL8K_RF_ANTENNA_TX 2
2920 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2922 struct mwl8k_cmd_rf_antenna *cmd;
2925 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2929 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2930 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2931 cmd->antenna = cpu_to_le16(antenna);
2932 cmd->mode = cpu_to_le16(mask);
2934 rc = mwl8k_post_cmd(hw, &cmd->header);
2943 struct mwl8k_cmd_set_beacon {
2944 struct mwl8k_cmd_pkt header;
2949 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2950 struct ieee80211_vif *vif, u8 *beacon, int len)
2952 struct mwl8k_cmd_set_beacon *cmd;
2955 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2959 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2960 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2961 cmd->beacon_len = cpu_to_le16(len);
2962 memcpy(cmd->beacon, beacon, len);
2964 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2973 struct mwl8k_cmd_set_pre_scan {
2974 struct mwl8k_cmd_pkt header;
2977 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2979 struct mwl8k_cmd_set_pre_scan *cmd;
2982 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2986 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2987 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2989 rc = mwl8k_post_cmd(hw, &cmd->header);
2996 * CMD_BBP_REG_ACCESS.
2998 struct mwl8k_cmd_bbp_reg_access {
2999 struct mwl8k_cmd_pkt header;
3007 mwl8k_cmd_bbp_reg_access(struct ieee80211_hw *hw,
3012 struct mwl8k_cmd_bbp_reg_access *cmd;
3015 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3019 cmd->header.code = cpu_to_le16(MWL8K_CMD_BBP_REG_ACCESS);
3020 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3021 cmd->action = cpu_to_le16(action);
3022 cmd->offset = cpu_to_le16(offset);
3024 rc = mwl8k_post_cmd(hw, &cmd->header);
3027 *value = cmd->value;
3037 * CMD_SET_POST_SCAN.
3039 struct mwl8k_cmd_set_post_scan {
3040 struct mwl8k_cmd_pkt header;
3042 __u8 bssid[ETH_ALEN];
3046 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
3048 struct mwl8k_cmd_set_post_scan *cmd;
3051 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3055 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
3056 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3058 memcpy(cmd->bssid, mac, ETH_ALEN);
3060 rc = mwl8k_post_cmd(hw, &cmd->header);
3066 static int freq_to_idx(struct mwl8k_priv *priv, int freq)
3068 struct ieee80211_supported_band *sband;
3069 int band, ch, idx = 0;
3071 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
3072 sband = priv->hw->wiphy->bands[band];
3076 for (ch = 0; ch < sband->n_channels; ch++, idx++)
3077 if (sband->channels[ch].center_freq == freq)
3085 static void mwl8k_update_survey(struct mwl8k_priv *priv,
3086 struct ieee80211_channel *channel)
3088 u32 cca_cnt, rx_rdy;
3090 struct survey_info *survey;
3092 idx = freq_to_idx(priv, priv->acs_chan->center_freq);
3093 if (idx >= MWL8K_NUM_CHANS) {
3094 wiphy_err(priv->hw->wiphy, "Failed to update survey\n");
3098 survey = &priv->survey[idx];
3100 cca_cnt = ioread32(priv->regs + NOK_CCA_CNT_REG);
3101 cca_cnt /= 1000; /* uSecs to mSecs */
3102 survey->time_busy = (u64) cca_cnt;
3104 rx_rdy = ioread32(priv->regs + BBU_RXRDY_CNT_REG);
3105 rx_rdy /= 1000; /* uSecs to mSecs */
3106 survey->time_rx = (u64) rx_rdy;
3108 priv->channel_time = jiffies - priv->channel_time;
3109 survey->time = jiffies_to_msecs(priv->channel_time);
3111 survey->channel = channel;
3113 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &nf);
3115 /* Make sure sign is negative else ACS at hostapd fails */
3116 survey->noise = nf * -1;
3118 survey->filled = SURVEY_INFO_NOISE_DBM |
3120 SURVEY_INFO_TIME_BUSY |
3121 SURVEY_INFO_TIME_RX;
3125 * CMD_SET_RF_CHANNEL.
3127 struct mwl8k_cmd_set_rf_channel {
3128 struct mwl8k_cmd_pkt header;
3130 __u8 current_channel;
3131 __le32 channel_flags;
3134 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
3135 struct ieee80211_conf *conf)
3137 struct ieee80211_channel *channel = conf->chandef.chan;
3138 enum nl80211_channel_type channel_type =
3139 cfg80211_get_chandef_type(&conf->chandef);
3140 struct mwl8k_cmd_set_rf_channel *cmd;
3141 struct mwl8k_priv *priv = hw->priv;
3144 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3148 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
3149 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3150 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3151 cmd->current_channel = channel->hw_value;
3153 if (channel->band == IEEE80211_BAND_2GHZ)
3154 cmd->channel_flags |= cpu_to_le32(0x00000001);
3155 else if (channel->band == IEEE80211_BAND_5GHZ)
3156 cmd->channel_flags |= cpu_to_le32(0x00000004);
3158 if (!priv->sw_scan_start) {
3159 if (channel_type == NL80211_CHAN_NO_HT ||
3160 channel_type == NL80211_CHAN_HT20)
3161 cmd->channel_flags |= cpu_to_le32(0x00000080);
3162 else if (channel_type == NL80211_CHAN_HT40MINUS)
3163 cmd->channel_flags |= cpu_to_le32(0x000001900);
3164 else if (channel_type == NL80211_CHAN_HT40PLUS)
3165 cmd->channel_flags |= cpu_to_le32(0x000000900);
3167 cmd->channel_flags |= cpu_to_le32(0x00000080);
3170 if (priv->sw_scan_start) {
3171 /* Store current channel stats
3172 * before switching to newer one.
3173 * This will be processed only for AP fw.
3175 if (priv->channel_time != 0)
3176 mwl8k_update_survey(priv, priv->acs_chan);
3178 priv->channel_time = jiffies;
3179 priv->acs_chan = channel;
3182 rc = mwl8k_post_cmd(hw, &cmd->header);
3191 #define MWL8K_FRAME_PROT_DISABLED 0x00
3192 #define MWL8K_FRAME_PROT_11G 0x07
3193 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3194 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3196 struct mwl8k_cmd_update_set_aid {
3197 struct mwl8k_cmd_pkt header;
3200 /* AP's MAC address (BSSID) */
3201 __u8 bssid[ETH_ALEN];
3202 __le16 protection_mode;
3203 __u8 supp_rates[14];
3206 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
3212 * Clear nonstandard rate 4.
3216 for (i = 0, j = 0; i < 13; i++) {
3217 if (mask & (1 << i))
3218 rates[j++] = mwl8k_rates_24[i].hw_value;
3223 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
3224 struct ieee80211_vif *vif, u32 legacy_rate_mask)
3226 struct mwl8k_cmd_update_set_aid *cmd;
3230 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3234 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
3235 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3236 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
3237 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
3239 if (vif->bss_conf.use_cts_prot) {
3240 prot_mode = MWL8K_FRAME_PROT_11G;
3242 switch (vif->bss_conf.ht_operation_mode &
3243 IEEE80211_HT_OP_MODE_PROTECTION) {
3244 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
3245 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
3247 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
3248 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
3251 prot_mode = MWL8K_FRAME_PROT_DISABLED;
3255 cmd->protection_mode = cpu_to_le16(prot_mode);
3257 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
3259 rc = mwl8k_post_cmd(hw, &cmd->header);
3268 struct mwl8k_cmd_set_rate {
3269 struct mwl8k_cmd_pkt header;
3270 __u8 legacy_rates[14];
3272 /* Bitmap for supported MCS codes. */
3278 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3279 u32 legacy_rate_mask, u8 *mcs_rates)
3281 struct mwl8k_cmd_set_rate *cmd;
3284 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3288 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
3289 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3290 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
3291 memcpy(cmd->mcs_set, mcs_rates, 16);
3293 rc = mwl8k_post_cmd(hw, &cmd->header);
3300 * CMD_FINALIZE_JOIN.
3302 #define MWL8K_FJ_BEACON_MAXLEN 128
3304 struct mwl8k_cmd_finalize_join {
3305 struct mwl8k_cmd_pkt header;
3306 __le32 sleep_interval; /* Number of beacon periods to sleep */
3307 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
3310 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
3311 int framelen, int dtim)
3313 struct mwl8k_cmd_finalize_join *cmd;
3314 struct ieee80211_mgmt *payload = frame;
3318 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3322 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
3323 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3324 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
3326 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
3327 if (payload_len < 0)
3329 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
3330 payload_len = MWL8K_FJ_BEACON_MAXLEN;
3332 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
3334 rc = mwl8k_post_cmd(hw, &cmd->header);
3341 * CMD_SET_RTS_THRESHOLD.
3343 struct mwl8k_cmd_set_rts_threshold {
3344 struct mwl8k_cmd_pkt header;
3350 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
3352 struct mwl8k_cmd_set_rts_threshold *cmd;
3355 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3359 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
3360 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3361 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3362 cmd->threshold = cpu_to_le16(rts_thresh);
3364 rc = mwl8k_post_cmd(hw, &cmd->header);
3373 struct mwl8k_cmd_set_slot {
3374 struct mwl8k_cmd_pkt header;
3379 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
3381 struct mwl8k_cmd_set_slot *cmd;
3384 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3388 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
3389 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3390 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3391 cmd->short_slot = short_slot_time;
3393 rc = mwl8k_post_cmd(hw, &cmd->header);
3400 * CMD_SET_EDCA_PARAMS.
3402 struct mwl8k_cmd_set_edca_params {
3403 struct mwl8k_cmd_pkt header;
3405 /* See MWL8K_SET_EDCA_XXX below */
3408 /* TX opportunity in units of 32 us */
3413 /* Log exponent of max contention period: 0...15 */
3416 /* Log exponent of min contention period: 0...15 */
3419 /* Adaptive interframe spacing in units of 32us */
3422 /* TX queue to configure */
3426 /* Log exponent of max contention period: 0...15 */
3429 /* Log exponent of min contention period: 0...15 */
3432 /* Adaptive interframe spacing in units of 32us */
3435 /* TX queue to configure */
3441 #define MWL8K_SET_EDCA_CW 0x01
3442 #define MWL8K_SET_EDCA_TXOP 0x02
3443 #define MWL8K_SET_EDCA_AIFS 0x04
3445 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3446 MWL8K_SET_EDCA_TXOP | \
3447 MWL8K_SET_EDCA_AIFS)
3450 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
3451 __u16 cw_min, __u16 cw_max,
3452 __u8 aifs, __u16 txop)
3454 struct mwl8k_priv *priv = hw->priv;
3455 struct mwl8k_cmd_set_edca_params *cmd;
3458 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3462 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
3463 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3464 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
3465 cmd->txop = cpu_to_le16(txop);
3467 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
3468 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
3469 cmd->ap.aifs = aifs;
3472 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
3473 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
3474 cmd->sta.aifs = aifs;
3475 cmd->sta.txq = qnum;
3478 rc = mwl8k_post_cmd(hw, &cmd->header);
3487 struct mwl8k_cmd_set_wmm_mode {
3488 struct mwl8k_cmd_pkt header;
3492 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
3494 struct mwl8k_priv *priv = hw->priv;
3495 struct mwl8k_cmd_set_wmm_mode *cmd;
3498 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3502 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
3503 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3504 cmd->action = cpu_to_le16(!!enable);
3506 rc = mwl8k_post_cmd(hw, &cmd->header);
3510 priv->wmm_enabled = enable;
3518 struct mwl8k_cmd_mimo_config {
3519 struct mwl8k_cmd_pkt header;
3521 __u8 rx_antenna_map;
3522 __u8 tx_antenna_map;
3525 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
3527 struct mwl8k_cmd_mimo_config *cmd;
3530 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3534 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
3535 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3536 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
3537 cmd->rx_antenna_map = rx;
3538 cmd->tx_antenna_map = tx;
3540 rc = mwl8k_post_cmd(hw, &cmd->header);
3547 * CMD_USE_FIXED_RATE (STA version).
3549 struct mwl8k_cmd_use_fixed_rate_sta {
3550 struct mwl8k_cmd_pkt header;
3552 __le32 allow_rate_drop;
3556 __le32 enable_retry;
3565 #define MWL8K_USE_AUTO_RATE 0x0002
3566 #define MWL8K_UCAST_RATE 0
3568 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
3570 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
3573 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3577 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3578 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3579 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3580 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
3582 rc = mwl8k_post_cmd(hw, &cmd->header);
3589 * CMD_USE_FIXED_RATE (AP version).
3591 struct mwl8k_cmd_use_fixed_rate_ap {
3592 struct mwl8k_cmd_pkt header;
3594 __le32 allow_rate_drop;
3596 struct mwl8k_rate_entry_ap {
3598 __le32 enable_retry;
3603 u8 multicast_rate_type;
3608 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
3610 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
3613 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3617 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3618 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3619 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3620 cmd->multicast_rate = mcast;
3621 cmd->management_rate = mgmt;
3623 rc = mwl8k_post_cmd(hw, &cmd->header);
3630 * CMD_ENABLE_SNIFFER.
3632 struct mwl8k_cmd_enable_sniffer {
3633 struct mwl8k_cmd_pkt header;
3637 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3639 struct mwl8k_cmd_enable_sniffer *cmd;
3642 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3646 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3647 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3648 cmd->action = cpu_to_le32(!!enable);
3650 rc = mwl8k_post_cmd(hw, &cmd->header);
3656 struct mwl8k_cmd_update_mac_addr {
3657 struct mwl8k_cmd_pkt header;
3661 __u8 mac_addr[ETH_ALEN];
3663 __u8 mac_addr[ETH_ALEN];
3667 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3668 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3669 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3670 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3672 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw *hw,
3673 struct ieee80211_vif *vif, u8 *mac, bool set)
3675 struct mwl8k_priv *priv = hw->priv;
3676 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3677 struct mwl8k_cmd_update_mac_addr *cmd;
3681 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3682 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3683 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3685 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3687 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3689 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3690 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3691 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3692 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3694 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3697 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3702 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3704 cmd->header.code = cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR);
3706 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3708 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3709 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3711 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3714 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3721 * MWL8K_CMD_SET_MAC_ADDR.
3723 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3724 struct ieee80211_vif *vif, u8 *mac)
3726 return mwl8k_cmd_update_mac_addr(hw, vif, mac, true);
3730 * MWL8K_CMD_DEL_MAC_ADDR.
3732 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw *hw,
3733 struct ieee80211_vif *vif, u8 *mac)
3735 return mwl8k_cmd_update_mac_addr(hw, vif, mac, false);
3739 * CMD_SET_RATEADAPT_MODE.
3741 struct mwl8k_cmd_set_rate_adapt_mode {
3742 struct mwl8k_cmd_pkt header;
3747 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3749 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3752 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3756 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3757 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3758 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3759 cmd->mode = cpu_to_le16(mode);
3761 rc = mwl8k_post_cmd(hw, &cmd->header);
3768 * CMD_GET_WATCHDOG_BITMAP.
3770 struct mwl8k_cmd_get_watchdog_bitmap {
3771 struct mwl8k_cmd_pkt header;
3775 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw *hw, u8 *bitmap)
3777 struct mwl8k_cmd_get_watchdog_bitmap *cmd;
3780 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3784 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP);
3785 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3787 rc = mwl8k_post_cmd(hw, &cmd->header);
3789 *bitmap = cmd->bitmap;
3796 #define MWL8K_WMM_QUEUE_NUMBER 3
3798 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
3801 static void mwl8k_watchdog_ba_events(struct work_struct *work)
3804 u8 bitmap = 0, stream_index;
3805 struct mwl8k_ampdu_stream *streams;
3806 struct mwl8k_priv *priv =
3807 container_of(work, struct mwl8k_priv, watchdog_ba_handle);
3808 struct ieee80211_hw *hw = priv->hw;
3814 rc = mwl8k_cmd_get_watchdog_bitmap(priv->hw, &bitmap);
3818 spin_lock(&priv->stream_lock);
3820 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3821 for (i = 0; i < TOTAL_HW_TX_QUEUES; i++) {
3822 if (bitmap & (1 << i)) {
3823 stream_index = (i + MWL8K_WMM_QUEUE_NUMBER) %
3825 streams = &priv->ampdu[stream_index];
3826 if (streams->state == AMPDU_STREAM_ACTIVE) {
3827 ieee80211_stop_tx_ba_session(streams->sta,
3829 spin_unlock(&priv->stream_lock);
3830 mwl8k_destroy_ba(hw, stream_index);
3831 spin_lock(&priv->stream_lock);
3836 spin_unlock(&priv->stream_lock);
3838 atomic_dec(&priv->watchdog_event_pending);
3839 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3840 iowrite32((status | MWL8K_A2H_INT_BA_WATCHDOG),
3841 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3842 mwl8k_fw_unlock(hw);
3850 struct mwl8k_cmd_bss_start {
3851 struct mwl8k_cmd_pkt header;
3855 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3856 struct ieee80211_vif *vif, int enable)
3858 struct mwl8k_cmd_bss_start *cmd;
3859 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3860 struct mwl8k_priv *priv = hw->priv;
3863 if (enable && (priv->running_bsses & (1 << mwl8k_vif->macid)))
3866 if (!enable && !(priv->running_bsses & (1 << mwl8k_vif->macid)))
3869 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3873 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3874 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3875 cmd->enable = cpu_to_le32(enable);
3877 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3882 priv->running_bsses |= (1 << mwl8k_vif->macid);
3884 priv->running_bsses &= ~(1 << mwl8k_vif->macid);
3889 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable, u32 bitmap)
3891 struct mwl8k_priv *priv = hw->priv;
3892 struct mwl8k_vif *mwl8k_vif, *tmp_vif;
3893 struct ieee80211_vif *vif;
3895 list_for_each_entry_safe(mwl8k_vif, tmp_vif, &priv->vif_list, list) {
3896 vif = mwl8k_vif->vif;
3898 if (!(bitmap & (1 << mwl8k_vif->macid)))
3901 if (vif->type == NL80211_IFTYPE_AP)
3902 mwl8k_cmd_bss_start(hw, vif, enable);
3910 * UPSTREAM is tx direction
3912 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3913 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3915 enum ba_stream_action_type {
3924 struct mwl8k_create_ba_stream {
3929 u8 peer_mac_addr[6];
3935 u8 reset_seq_no_flag;
3937 u8 sta_src_mac_addr[6];
3940 struct mwl8k_destroy_ba_stream {
3945 struct mwl8k_cmd_bastream {
3946 struct mwl8k_cmd_pkt header;
3949 struct mwl8k_create_ba_stream create_params;
3950 struct mwl8k_destroy_ba_stream destroy_params;
3955 mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3956 struct ieee80211_vif *vif)
3958 struct mwl8k_cmd_bastream *cmd;
3961 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3965 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3966 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3968 cmd->action = cpu_to_le32(MWL8K_BA_CHECK);
3970 cmd->create_params.queue_id = stream->idx;
3971 memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr,
3973 cmd->create_params.tid = stream->tid;
3975 cmd->create_params.flags =
3976 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) |
3977 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM);
3979 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3987 mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3988 u8 buf_size, struct ieee80211_vif *vif)
3990 struct mwl8k_cmd_bastream *cmd;
3993 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3998 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3999 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4001 cmd->action = cpu_to_le32(MWL8K_BA_CREATE);
4003 cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size);
4004 cmd->create_params.window_size = cpu_to_le32((u32)buf_size);
4005 cmd->create_params.queue_id = stream->idx;
4007 memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN);
4008 cmd->create_params.tid = stream->tid;
4009 cmd->create_params.curr_seq_no = cpu_to_le16(0);
4010 cmd->create_params.reset_seq_no_flag = 1;
4012 cmd->create_params.param_info =
4013 (stream->sta->ht_cap.ampdu_factor &
4014 IEEE80211_HT_AMPDU_PARM_FACTOR) |
4015 ((stream->sta->ht_cap.ampdu_density << 2) &
4016 IEEE80211_HT_AMPDU_PARM_DENSITY);
4018 cmd->create_params.flags =
4019 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE |
4020 BASTREAM_FLAG_DIRECTION_UPSTREAM);
4022 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4024 wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n",
4025 stream->sta->addr, stream->tid);
4031 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
4034 struct mwl8k_cmd_bastream *cmd;
4036 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4040 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4041 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4042 cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
4044 cmd->destroy_params.ba_context = cpu_to_le32(idx);
4045 mwl8k_post_cmd(hw, &cmd->header);
4047 wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", idx);
4055 struct mwl8k_cmd_set_new_stn {
4056 struct mwl8k_cmd_pkt header;
4062 __le32 legacy_rates;
4065 __le16 ht_capabilities_info;
4066 __u8 mac_ht_param_info;
4068 __u8 control_channel;
4077 #define MWL8K_STA_ACTION_ADD 0
4078 #define MWL8K_STA_ACTION_REMOVE 2
4080 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
4081 struct ieee80211_vif *vif,
4082 struct ieee80211_sta *sta)
4084 struct mwl8k_cmd_set_new_stn *cmd;
4088 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4092 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4093 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4094 cmd->aid = cpu_to_le16(sta->aid);
4095 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
4096 cmd->stn_id = cpu_to_le16(sta->aid);
4097 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
4098 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
4099 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4101 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4102 cmd->legacy_rates = cpu_to_le32(rates);
4103 if (sta->ht_cap.ht_supported) {
4104 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
4105 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
4106 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
4107 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
4108 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
4109 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
4110 ((sta->ht_cap.ampdu_density & 7) << 2);
4111 cmd->is_qos_sta = 1;
4114 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4120 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
4121 struct ieee80211_vif *vif)
4123 struct mwl8k_cmd_set_new_stn *cmd;
4126 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4130 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4131 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4132 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
4134 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4140 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
4141 struct ieee80211_vif *vif, u8 *addr)
4143 struct mwl8k_cmd_set_new_stn *cmd;
4144 struct mwl8k_priv *priv = hw->priv;
4148 spin_lock(&priv->stream_lock);
4149 /* Destroy any active ampdu streams for this sta */
4150 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
4151 struct mwl8k_ampdu_stream *s;
4152 s = &priv->ampdu[i];
4153 if (s->state != AMPDU_NO_STREAM) {
4154 if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
4155 if (s->state == AMPDU_STREAM_ACTIVE) {
4157 spin_unlock(&priv->stream_lock);
4158 mwl8k_destroy_ba(hw, idx);
4159 spin_lock(&priv->stream_lock);
4160 } else if (s->state == AMPDU_STREAM_NEW) {
4161 mwl8k_remove_stream(hw, s);
4167 spin_unlock(&priv->stream_lock);
4169 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4173 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4174 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4175 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4176 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
4178 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4185 * CMD_UPDATE_ENCRYPTION.
4188 #define MAX_ENCR_KEY_LENGTH 16
4189 #define MIC_KEY_LENGTH 8
4191 struct mwl8k_cmd_update_encryption {
4192 struct mwl8k_cmd_pkt header;
4201 struct mwl8k_cmd_set_key {
4202 struct mwl8k_cmd_pkt header;
4211 __u8 key_material[MAX_ENCR_KEY_LENGTH];
4212 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
4213 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
4214 __le16 tkip_rsc_low;
4215 __le32 tkip_rsc_high;
4216 __le16 tkip_tsc_low;
4217 __le32 tkip_tsc_high;
4224 MWL8K_ENCR_REMOVE_KEY,
4225 MWL8K_ENCR_SET_GROUP_KEY,
4228 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4229 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4230 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4231 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4232 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4240 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4241 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4242 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4243 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4244 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4246 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
4247 struct ieee80211_vif *vif,
4251 struct mwl8k_cmd_update_encryption *cmd;
4254 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4258 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4259 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4260 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
4261 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4262 cmd->encr_type = encr_type;
4264 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4270 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
4272 struct ieee80211_key_conf *key)
4274 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4275 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4276 cmd->length = cpu_to_le16(sizeof(*cmd) -
4277 offsetof(struct mwl8k_cmd_set_key, length));
4278 cmd->key_id = cpu_to_le32(key->keyidx);
4279 cmd->key_len = cpu_to_le16(key->keylen);
4280 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4282 switch (key->cipher) {
4283 case WLAN_CIPHER_SUITE_WEP40:
4284 case WLAN_CIPHER_SUITE_WEP104:
4285 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
4286 if (key->keyidx == 0)
4287 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
4290 case WLAN_CIPHER_SUITE_TKIP:
4291 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
4292 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4293 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4294 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4295 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4296 | MWL8K_KEY_FLAG_TSC_VALID);
4298 case WLAN_CIPHER_SUITE_CCMP:
4299 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
4300 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4301 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4302 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4311 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
4312 struct ieee80211_vif *vif,
4314 struct ieee80211_key_conf *key)
4316 struct mwl8k_cmd_set_key *cmd;
4321 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4323 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4327 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4333 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4334 action = MWL8K_ENCR_SET_KEY;
4336 action = MWL8K_ENCR_SET_GROUP_KEY;
4338 switch (key->cipher) {
4339 case WLAN_CIPHER_SUITE_WEP40:
4340 case WLAN_CIPHER_SUITE_WEP104:
4341 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
4342 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
4343 sizeof(*key) + key->keylen);
4344 mwl8k_vif->wep_key_conf[idx].enabled = 1;
4347 keymlen = key->keylen;
4348 action = MWL8K_ENCR_SET_KEY;
4350 case WLAN_CIPHER_SUITE_TKIP:
4351 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
4353 case WLAN_CIPHER_SUITE_CCMP:
4354 keymlen = key->keylen;
4361 memcpy(cmd->key_material, key->key, keymlen);
4362 cmd->action = cpu_to_le32(action);
4364 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4371 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
4372 struct ieee80211_vif *vif,
4374 struct ieee80211_key_conf *key)
4376 struct mwl8k_cmd_set_key *cmd;
4378 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4380 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4384 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4388 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4389 key->cipher == WLAN_CIPHER_SUITE_WEP104)
4390 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
4392 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
4394 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4401 static int mwl8k_set_key(struct ieee80211_hw *hw,
4402 enum set_key_cmd cmd_param,
4403 struct ieee80211_vif *vif,
4404 struct ieee80211_sta *sta,
4405 struct ieee80211_key_conf *key)
4410 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4411 struct mwl8k_priv *priv = hw->priv;
4413 if (vif->type == NL80211_IFTYPE_STATION && !priv->ap_fw)
4421 if (cmd_param == SET_KEY) {
4422 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
4426 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
4427 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
4428 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
4430 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
4432 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
4437 mwl8k_vif->is_hw_crypto_enabled = true;
4440 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
4452 struct ewc_ht_info {
4458 struct peer_capability_info {
4459 /* Peer type - AP vs. STA. */
4462 /* Basic 802.11 capabilities from assoc resp. */
4465 /* Set if peer supports 802.11n high throughput (HT). */
4468 /* Valid if HT is supported. */
4470 __u8 extended_ht_caps;
4471 struct ewc_ht_info ewc_info;
4473 /* Legacy rate table. Intersection of our rates and peer rates. */
4474 __u8 legacy_rates[12];
4476 /* HT rate table. Intersection of our rates and peer rates. */
4480 /* If set, interoperability mode, no proprietary extensions. */
4484 __le16 amsdu_enabled;
4487 struct mwl8k_cmd_update_stadb {
4488 struct mwl8k_cmd_pkt header;
4490 /* See STADB_ACTION_TYPE */
4493 /* Peer MAC address */
4494 __u8 peer_addr[ETH_ALEN];
4498 /* Peer info - valid during add/update. */
4499 struct peer_capability_info peer_info;
4502 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4503 #define MWL8K_STA_DB_DEL_ENTRY 2
4505 /* Peer Entry flags - used to define the type of the peer node */
4506 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4508 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
4509 struct ieee80211_vif *vif,
4510 struct ieee80211_sta *sta)
4512 struct mwl8k_cmd_update_stadb *cmd;
4513 struct peer_capability_info *p;
4517 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4521 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4522 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4523 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
4524 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
4526 p = &cmd->peer_info;
4527 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
4528 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
4529 p->ht_support = sta->ht_cap.ht_supported;
4530 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
4531 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
4532 ((sta->ht_cap.ampdu_density & 7) << 2);
4533 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
4534 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4536 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4537 legacy_rate_mask_to_array(p->legacy_rates, rates);
4538 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
4540 p->amsdu_enabled = 0;
4542 rc = mwl8k_post_cmd(hw, &cmd->header);
4550 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
4551 struct ieee80211_vif *vif, u8 *addr)
4553 struct mwl8k_cmd_update_stadb *cmd;
4556 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4560 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4561 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4562 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
4563 memcpy(cmd->peer_addr, addr, ETH_ALEN);
4565 rc = mwl8k_post_cmd(hw, &cmd->header);
4573 * Interrupt handling.
4575 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
4577 struct ieee80211_hw *hw = dev_id;
4578 struct mwl8k_priv *priv = hw->priv;
4581 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4585 if (status & MWL8K_A2H_INT_TX_DONE) {
4586 status &= ~MWL8K_A2H_INT_TX_DONE;
4587 tasklet_schedule(&priv->poll_tx_task);
4590 if (status & MWL8K_A2H_INT_RX_READY) {
4591 status &= ~MWL8K_A2H_INT_RX_READY;
4592 tasklet_schedule(&priv->poll_rx_task);
4595 if (status & MWL8K_A2H_INT_BA_WATCHDOG) {
4596 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG,
4597 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4599 atomic_inc(&priv->watchdog_event_pending);
4600 status &= ~MWL8K_A2H_INT_BA_WATCHDOG;
4601 ieee80211_queue_work(hw, &priv->watchdog_ba_handle);
4605 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4607 if (status & MWL8K_A2H_INT_OPC_DONE) {
4608 if (priv->hostcmd_wait != NULL)
4609 complete(priv->hostcmd_wait);
4612 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
4613 if (!mutex_is_locked(&priv->fw_mutex) &&
4614 priv->radio_on && priv->pending_tx_pkts)
4615 mwl8k_tx_start(priv);
4621 static void mwl8k_tx_poll(unsigned long data)
4623 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4624 struct mwl8k_priv *priv = hw->priv;
4630 spin_lock_bh(&priv->tx_lock);
4632 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4633 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
4635 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
4636 complete(priv->tx_wait);
4637 priv->tx_wait = NULL;
4640 spin_unlock_bh(&priv->tx_lock);
4643 writel(~MWL8K_A2H_INT_TX_DONE,
4644 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4646 tasklet_schedule(&priv->poll_tx_task);
4650 static void mwl8k_rx_poll(unsigned long data)
4652 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4653 struct mwl8k_priv *priv = hw->priv;
4657 limit -= rxq_process(hw, 0, limit);
4658 limit -= rxq_refill(hw, 0, limit);
4661 writel(~MWL8K_A2H_INT_RX_READY,
4662 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4664 tasklet_schedule(&priv->poll_rx_task);
4670 * Core driver operations.
4672 static void mwl8k_tx(struct ieee80211_hw *hw,
4673 struct ieee80211_tx_control *control,
4674 struct sk_buff *skb)
4676 struct mwl8k_priv *priv = hw->priv;
4677 int index = skb_get_queue_mapping(skb);
4679 if (!priv->radio_on) {
4680 wiphy_debug(hw->wiphy,
4681 "dropped TX frame since radio disabled\n");
4686 mwl8k_txq_xmit(hw, index, control->sta, skb);
4689 static int mwl8k_start(struct ieee80211_hw *hw)
4691 struct mwl8k_priv *priv = hw->priv;
4694 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4695 IRQF_SHARED, MWL8K_NAME, hw);
4698 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4701 priv->irq = priv->pdev->irq;
4703 /* Enable TX reclaim and RX tasklets. */
4704 tasklet_enable(&priv->poll_tx_task);
4705 tasklet_enable(&priv->poll_rx_task);
4707 /* Enable interrupts */
4708 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4709 iowrite32(MWL8K_A2H_EVENTS,
4710 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4712 rc = mwl8k_fw_lock(hw);
4714 rc = mwl8k_cmd_radio_enable(hw);
4718 rc = mwl8k_cmd_enable_sniffer(hw, 0);
4721 rc = mwl8k_cmd_set_pre_scan(hw);
4724 rc = mwl8k_cmd_set_post_scan(hw,
4725 "\x00\x00\x00\x00\x00\x00");
4729 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
4732 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
4734 mwl8k_fw_unlock(hw);
4738 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4739 free_irq(priv->pdev->irq, hw);
4741 tasklet_disable(&priv->poll_tx_task);
4742 tasklet_disable(&priv->poll_rx_task);
4744 ieee80211_wake_queues(hw);
4750 static void mwl8k_stop(struct ieee80211_hw *hw)
4752 struct mwl8k_priv *priv = hw->priv;
4755 if (!priv->hw_restart_in_progress)
4756 mwl8k_cmd_radio_disable(hw);
4758 ieee80211_stop_queues(hw);
4760 /* Disable interrupts */
4761 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4762 if (priv->irq != -1) {
4763 free_irq(priv->pdev->irq, hw);
4767 /* Stop finalize join worker */
4768 cancel_work_sync(&priv->finalize_join_worker);
4769 cancel_work_sync(&priv->watchdog_ba_handle);
4770 if (priv->beacon_skb != NULL)
4771 dev_kfree_skb(priv->beacon_skb);
4773 /* Stop TX reclaim and RX tasklets. */
4774 tasklet_disable(&priv->poll_tx_task);
4775 tasklet_disable(&priv->poll_rx_task);
4777 /* Return all skbs to mac80211 */
4778 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4779 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4782 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
4784 static int mwl8k_add_interface(struct ieee80211_hw *hw,
4785 struct ieee80211_vif *vif)
4787 struct mwl8k_priv *priv = hw->priv;
4788 struct mwl8k_vif *mwl8k_vif;
4789 u32 macids_supported;
4791 struct mwl8k_device_info *di;
4794 * Reject interface creation if sniffer mode is active, as
4795 * STA operation is mutually exclusive with hardware sniffer
4796 * mode. (Sniffer mode is only used on STA firmware.)
4798 if (priv->sniffer_enabled) {
4799 wiphy_info(hw->wiphy,
4800 "unable to create STA interface because sniffer mode is enabled\n");
4804 di = priv->device_info;
4805 switch (vif->type) {
4806 case NL80211_IFTYPE_AP:
4807 if (!priv->ap_fw && di->fw_image_ap) {
4808 /* we must load the ap fw to meet this request */
4809 if (!list_empty(&priv->vif_list))
4811 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4815 macids_supported = priv->ap_macids_supported;
4817 case NL80211_IFTYPE_STATION:
4818 if (priv->ap_fw && di->fw_image_sta) {
4819 if (!list_empty(&priv->vif_list)) {
4820 wiphy_warn(hw->wiphy, "AP interface is running.\n"
4821 "Adding STA interface for WDS");
4823 /* we must load the sta fw to
4824 * meet this request.
4826 rc = mwl8k_reload_firmware(hw,
4832 macids_supported = priv->sta_macids_supported;
4838 macid = ffs(macids_supported & ~priv->macids_used);
4842 /* Setup driver private area. */
4843 mwl8k_vif = MWL8K_VIF(vif);
4844 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
4845 mwl8k_vif->vif = vif;
4846 mwl8k_vif->macid = macid;
4847 mwl8k_vif->seqno = 0;
4848 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
4849 mwl8k_vif->is_hw_crypto_enabled = false;
4851 /* Set the mac address. */
4852 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
4854 if (vif->type == NL80211_IFTYPE_AP)
4855 mwl8k_cmd_set_new_stn_add_self(hw, vif);
4857 priv->macids_used |= 1 << mwl8k_vif->macid;
4858 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
4863 static void mwl8k_remove_vif(struct mwl8k_priv *priv, struct mwl8k_vif *vif)
4865 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4866 if (!priv->macids_used)
4869 priv->macids_used &= ~(1 << vif->macid);
4870 list_del(&vif->list);
4873 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
4874 struct ieee80211_vif *vif)
4876 struct mwl8k_priv *priv = hw->priv;
4877 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4879 if (vif->type == NL80211_IFTYPE_AP)
4880 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
4882 mwl8k_cmd_del_mac_addr(hw, vif, vif->addr);
4884 mwl8k_remove_vif(priv, mwl8k_vif);
4887 static void mwl8k_hw_restart_work(struct work_struct *work)
4889 struct mwl8k_priv *priv =
4890 container_of(work, struct mwl8k_priv, fw_reload);
4891 struct ieee80211_hw *hw = priv->hw;
4892 struct mwl8k_device_info *di;
4895 /* If some command is waiting for a response, clear it */
4896 if (priv->hostcmd_wait != NULL) {
4897 complete(priv->hostcmd_wait);
4898 priv->hostcmd_wait = NULL;
4901 priv->hw_restart_owner = current;
4902 di = priv->device_info;
4906 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4908 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
4913 priv->hw_restart_owner = NULL;
4914 priv->hw_restart_in_progress = false;
4917 * This unlock will wake up the queues and
4918 * also opens the command path for other
4921 mwl8k_fw_unlock(hw);
4923 ieee80211_restart_hw(hw);
4925 wiphy_err(hw->wiphy, "Firmware restarted successfully\n");
4929 mwl8k_fw_unlock(hw);
4931 wiphy_err(hw->wiphy, "Firmware restart failed\n");
4934 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
4936 struct ieee80211_conf *conf = &hw->conf;
4937 struct mwl8k_priv *priv = hw->priv;
4940 rc = mwl8k_fw_lock(hw);
4944 if (conf->flags & IEEE80211_CONF_IDLE)
4945 rc = mwl8k_cmd_radio_disable(hw);
4947 rc = mwl8k_cmd_radio_enable(hw);
4951 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
4952 rc = mwl8k_cmd_set_rf_channel(hw, conf);
4957 if (conf->power_level > 18)
4958 conf->power_level = 18;
4962 if (conf->flags & IEEE80211_CONF_CHANGE_POWER) {
4963 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
4970 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
4973 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
4977 mwl8k_fw_unlock(hw);
4983 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4984 struct ieee80211_bss_conf *info, u32 changed)
4986 struct mwl8k_priv *priv = hw->priv;
4987 u32 ap_legacy_rates = 0;
4988 u8 ap_mcs_rates[16];
4991 if (mwl8k_fw_lock(hw))
4995 * No need to capture a beacon if we're no longer associated.
4997 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
4998 priv->capture_beacon = false;
5001 * Get the AP's legacy and MCS rates.
5003 if (vif->bss_conf.assoc) {
5004 struct ieee80211_sta *ap;
5008 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
5014 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ) {
5015 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
5018 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
5020 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
5024 if (changed & BSS_CHANGED_ASSOC) {
5026 rc = mwl8k_cmd_set_rate(hw, vif,
5032 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
5039 /* Use AP firmware specific rate command.
5041 idx = ffs(vif->bss_conf.basic_rates);
5045 if (hw->conf.chandef.chan->band ==
5046 IEEE80211_BAND_2GHZ)
5047 rate = mwl8k_rates_24[idx].hw_value;
5049 rate = mwl8k_rates_50[idx].hw_value;
5051 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
5056 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5057 rc = mwl8k_set_radio_preamble(hw,
5058 vif->bss_conf.use_short_preamble);
5063 if ((changed & BSS_CHANGED_ERP_SLOT) && !priv->ap_fw) {
5064 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
5069 if (vif->bss_conf.assoc && !priv->ap_fw &&
5070 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
5072 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
5077 if (vif->bss_conf.assoc &&
5078 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
5080 * Finalize the join. Tell rx handler to process
5081 * next beacon from our BSSID.
5083 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
5084 priv->capture_beacon = true;
5088 mwl8k_fw_unlock(hw);
5092 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5093 struct ieee80211_bss_conf *info, u32 changed)
5097 if (mwl8k_fw_lock(hw))
5100 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5101 rc = mwl8k_set_radio_preamble(hw,
5102 vif->bss_conf.use_short_preamble);
5107 if (changed & BSS_CHANGED_BASIC_RATES) {
5112 * Use lowest supported basic rate for multicasts
5113 * and management frames (such as probe responses --
5114 * beacons will always go out at 1 Mb/s).
5116 idx = ffs(vif->bss_conf.basic_rates);
5120 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
5121 rate = mwl8k_rates_24[idx].hw_value;
5123 rate = mwl8k_rates_50[idx].hw_value;
5125 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
5128 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
5129 struct sk_buff *skb;
5131 skb = ieee80211_beacon_get(hw, vif);
5133 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
5138 if (changed & BSS_CHANGED_BEACON_ENABLED)
5139 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
5142 mwl8k_fw_unlock(hw);
5146 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5147 struct ieee80211_bss_conf *info, u32 changed)
5149 if (vif->type == NL80211_IFTYPE_STATION)
5150 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
5151 if (vif->type == NL80211_IFTYPE_AP)
5152 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
5155 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
5156 struct netdev_hw_addr_list *mc_list)
5158 struct mwl8k_cmd_pkt *cmd;
5161 * Synthesize and return a command packet that programs the
5162 * hardware multicast address filter. At this point we don't
5163 * know whether FIF_ALLMULTI is being requested, but if it is,
5164 * we'll end up throwing this packet away and creating a new
5165 * one in mwl8k_configure_filter().
5167 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
5169 return (unsigned long)cmd;
5173 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
5174 unsigned int changed_flags,
5175 unsigned int *total_flags)
5177 struct mwl8k_priv *priv = hw->priv;
5180 * Hardware sniffer mode is mutually exclusive with STA
5181 * operation, so refuse to enable sniffer mode if a STA
5182 * interface is active.
5184 if (!list_empty(&priv->vif_list)) {
5185 if (net_ratelimit())
5186 wiphy_info(hw->wiphy,
5187 "not enabling sniffer mode because STA interface is active\n");
5191 if (!priv->sniffer_enabled) {
5192 if (mwl8k_cmd_enable_sniffer(hw, 1))
5194 priv->sniffer_enabled = true;
5197 *total_flags &= FIF_ALLMULTI |
5198 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
5204 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
5206 if (!list_empty(&priv->vif_list))
5207 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
5212 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
5213 unsigned int changed_flags,
5214 unsigned int *total_flags,
5217 struct mwl8k_priv *priv = hw->priv;
5218 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
5221 * AP firmware doesn't allow fine-grained control over
5222 * the receive filter.
5225 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5231 * Enable hardware sniffer mode if FIF_CONTROL or
5232 * FIF_OTHER_BSS is requested.
5234 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
5235 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
5240 /* Clear unsupported feature flags */
5241 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5243 if (mwl8k_fw_lock(hw)) {
5248 if (priv->sniffer_enabled) {
5249 mwl8k_cmd_enable_sniffer(hw, 0);
5250 priv->sniffer_enabled = false;
5253 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
5254 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
5256 * Disable the BSS filter.
5258 mwl8k_cmd_set_pre_scan(hw);
5260 struct mwl8k_vif *mwl8k_vif;
5264 * Enable the BSS filter.
5266 * If there is an active STA interface, use that
5267 * interface's BSSID, otherwise use a dummy one
5268 * (where the OUI part needs to be nonzero for
5269 * the BSSID to be accepted by POST_SCAN).
5271 mwl8k_vif = mwl8k_first_vif(priv);
5272 if (mwl8k_vif != NULL)
5273 bssid = mwl8k_vif->vif->bss_conf.bssid;
5275 bssid = "\x01\x00\x00\x00\x00\x00";
5277 mwl8k_cmd_set_post_scan(hw, bssid);
5282 * If FIF_ALLMULTI is being requested, throw away the command
5283 * packet that ->prepare_multicast() built and replace it with
5284 * a command packet that enables reception of all multicast
5287 if (*total_flags & FIF_ALLMULTI) {
5289 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
5293 mwl8k_post_cmd(hw, cmd);
5297 mwl8k_fw_unlock(hw);
5300 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
5302 return mwl8k_cmd_set_rts_threshold(hw, value);
5305 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
5306 struct ieee80211_vif *vif,
5307 struct ieee80211_sta *sta)
5309 struct mwl8k_priv *priv = hw->priv;
5312 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
5314 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
5317 static int mwl8k_sta_add(struct ieee80211_hw *hw,
5318 struct ieee80211_vif *vif,
5319 struct ieee80211_sta *sta)
5321 struct mwl8k_priv *priv = hw->priv;
5324 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
5325 struct ieee80211_key_conf *key;
5328 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
5330 MWL8K_STA(sta)->peer_id = ret;
5331 if (sta->ht_cap.ht_supported)
5332 MWL8K_STA(sta)->is_ampdu_allowed = true;
5337 ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
5340 for (i = 0; i < NUM_WEP_KEYS; i++) {
5341 key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key);
5342 if (mwl8k_vif->wep_key_conf[i].enabled)
5343 mwl8k_set_key(hw, SET_KEY, vif, sta, key);
5348 static int mwl8k_conf_tx(struct ieee80211_hw *hw,
5349 struct ieee80211_vif *vif, u16 queue,
5350 const struct ieee80211_tx_queue_params *params)
5352 struct mwl8k_priv *priv = hw->priv;
5355 rc = mwl8k_fw_lock(hw);
5357 BUG_ON(queue > MWL8K_TX_WMM_QUEUES - 1);
5358 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
5360 if (!priv->wmm_enabled)
5361 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
5364 int q = MWL8K_TX_WMM_QUEUES - 1 - queue;
5365 rc = mwl8k_cmd_set_edca_params(hw, q,
5372 mwl8k_fw_unlock(hw);
5378 static int mwl8k_get_stats(struct ieee80211_hw *hw,
5379 struct ieee80211_low_level_stats *stats)
5381 return mwl8k_cmd_get_stat(hw, stats);
5384 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
5385 struct survey_info *survey)
5387 struct mwl8k_priv *priv = hw->priv;
5388 struct ieee80211_conf *conf = &hw->conf;
5389 struct ieee80211_supported_band *sband;
5392 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
5394 if (sband && idx >= sband->n_channels) {
5395 idx -= sband->n_channels;
5400 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
5402 if (!sband || idx >= sband->n_channels)
5405 memcpy(survey, &priv->survey[idx], sizeof(*survey));
5406 survey->channel = &sband->channels[idx];
5414 survey->channel = conf->chandef.chan;
5415 survey->filled = SURVEY_INFO_NOISE_DBM;
5416 survey->noise = priv->noise;
5421 #define MAX_AMPDU_ATTEMPTS 5
5424 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5425 struct ieee80211_ampdu_params *params)
5427 struct ieee80211_sta *sta = params->sta;
5428 enum ieee80211_ampdu_mlme_action action = params->action;
5429 u16 tid = params->tid;
5430 u16 *ssn = ¶ms->ssn;
5431 u8 buf_size = params->buf_size;
5433 struct mwl8k_priv *priv = hw->priv;
5434 struct mwl8k_ampdu_stream *stream;
5435 u8 *addr = sta->addr, idx;
5436 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
5438 if (!ieee80211_hw_check(hw, AMPDU_AGGREGATION))
5441 spin_lock(&priv->stream_lock);
5442 stream = mwl8k_lookup_stream(hw, addr, tid);
5445 case IEEE80211_AMPDU_RX_START:
5446 case IEEE80211_AMPDU_RX_STOP:
5448 case IEEE80211_AMPDU_TX_START:
5449 /* By the time we get here the hw queues may contain outgoing
5450 * packets for this RA/TID that are not part of this BA
5451 * session. The hw will assign sequence numbers to these
5452 * packets as they go out. So if we query the hw for its next
5453 * sequence number and use that for the SSN here, it may end up
5454 * being wrong, which will lead to sequence number mismatch at
5455 * the recipient. To avoid this, we reset the sequence number
5456 * to O for the first MPDU in this BA stream.
5459 if (stream == NULL) {
5460 /* This means that somebody outside this driver called
5461 * ieee80211_start_tx_ba_session. This is unexpected
5462 * because we do our own rate control. Just warn and
5465 wiphy_warn(hw->wiphy, "Unexpected call to %s. "
5466 "Proceeding anyway.\n", __func__);
5467 stream = mwl8k_add_stream(hw, sta, tid);
5469 if (stream == NULL) {
5470 wiphy_debug(hw->wiphy, "no free AMPDU streams\n");
5474 stream->state = AMPDU_STREAM_IN_PROGRESS;
5476 /* Release the lock before we do the time consuming stuff */
5477 spin_unlock(&priv->stream_lock);
5478 for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) {
5480 /* Check if link is still valid */
5481 if (!sta_info->is_ampdu_allowed) {
5482 spin_lock(&priv->stream_lock);
5483 mwl8k_remove_stream(hw, stream);
5484 spin_unlock(&priv->stream_lock);
5488 rc = mwl8k_check_ba(hw, stream, vif);
5490 /* If HW restart is in progress mwl8k_post_cmd will
5491 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5494 if (!rc || rc == -EBUSY)
5497 * HW queues take time to be flushed, give them
5503 spin_lock(&priv->stream_lock);
5505 wiphy_err(hw->wiphy, "Stream for tid %d busy after %d"
5506 " attempts\n", tid, MAX_AMPDU_ATTEMPTS);
5507 mwl8k_remove_stream(hw, stream);
5511 ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
5513 case IEEE80211_AMPDU_TX_STOP_CONT:
5514 case IEEE80211_AMPDU_TX_STOP_FLUSH:
5515 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
5517 if (stream->state == AMPDU_STREAM_ACTIVE) {
5519 spin_unlock(&priv->stream_lock);
5520 mwl8k_destroy_ba(hw, idx);
5521 spin_lock(&priv->stream_lock);
5523 mwl8k_remove_stream(hw, stream);
5525 ieee80211_stop_tx_ba_cb_irqsafe(vif, addr, tid);
5527 case IEEE80211_AMPDU_TX_OPERATIONAL:
5528 BUG_ON(stream == NULL);
5529 BUG_ON(stream->state != AMPDU_STREAM_IN_PROGRESS);
5530 spin_unlock(&priv->stream_lock);
5531 rc = mwl8k_create_ba(hw, stream, buf_size, vif);
5532 spin_lock(&priv->stream_lock);
5534 stream->state = AMPDU_STREAM_ACTIVE;
5537 spin_unlock(&priv->stream_lock);
5538 mwl8k_destroy_ba(hw, idx);
5539 spin_lock(&priv->stream_lock);
5540 wiphy_debug(hw->wiphy,
5541 "Failed adding stream for sta %pM tid %d\n",
5543 mwl8k_remove_stream(hw, stream);
5551 spin_unlock(&priv->stream_lock);
5555 static void mwl8k_sw_scan_start(struct ieee80211_hw *hw,
5556 struct ieee80211_vif *vif,
5559 struct mwl8k_priv *priv = hw->priv;
5565 /* clear all stats */
5566 priv->channel_time = 0;
5567 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5568 ioread32(priv->regs + NOK_CCA_CNT_REG);
5569 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5571 priv->sw_scan_start = true;
5574 static void mwl8k_sw_scan_complete(struct ieee80211_hw *hw,
5575 struct ieee80211_vif *vif)
5577 struct mwl8k_priv *priv = hw->priv;
5583 priv->sw_scan_start = false;
5585 /* clear all stats */
5586 priv->channel_time = 0;
5587 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5588 ioread32(priv->regs + NOK_CCA_CNT_REG);
5589 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5592 static const struct ieee80211_ops mwl8k_ops = {
5594 .start = mwl8k_start,
5596 .add_interface = mwl8k_add_interface,
5597 .remove_interface = mwl8k_remove_interface,
5598 .config = mwl8k_config,
5599 .bss_info_changed = mwl8k_bss_info_changed,
5600 .prepare_multicast = mwl8k_prepare_multicast,
5601 .configure_filter = mwl8k_configure_filter,
5602 .set_key = mwl8k_set_key,
5603 .set_rts_threshold = mwl8k_set_rts_threshold,
5604 .sta_add = mwl8k_sta_add,
5605 .sta_remove = mwl8k_sta_remove,
5606 .conf_tx = mwl8k_conf_tx,
5607 .get_stats = mwl8k_get_stats,
5608 .get_survey = mwl8k_get_survey,
5609 .ampdu_action = mwl8k_ampdu_action,
5610 .sw_scan_start = mwl8k_sw_scan_start,
5611 .sw_scan_complete = mwl8k_sw_scan_complete,
5614 static void mwl8k_finalize_join_worker(struct work_struct *work)
5616 struct mwl8k_priv *priv =
5617 container_of(work, struct mwl8k_priv, finalize_join_worker);
5618 struct sk_buff *skb = priv->beacon_skb;
5619 struct ieee80211_mgmt *mgmt = (void *)skb->data;
5620 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
5621 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
5622 mgmt->u.beacon.variable, len);
5623 int dtim_period = 1;
5625 if (tim && tim[1] >= 2)
5626 dtim_period = tim[3];
5628 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
5631 priv->beacon_skb = NULL;
5641 #define MWL8K_8366_AP_FW_API 3
5642 #define _MWL8K_8366_AP_FW(api) "/*(DEBLOBBED)*/"
5643 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5645 #define MWL8K_8764_AP_FW_API 1
5646 #define _MWL8K_8764_AP_FW(api) "/*(DEBLOBBED)*/"
5647 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5649 static struct mwl8k_device_info mwl8k_info_tbl[] = {
5651 .part_name = "88w8363",
5652 .helper_image = "/*(DEBLOBBED)*/",
5653 .fw_image_sta = "/*(DEBLOBBED)*/",
5656 .part_name = "88w8687",
5657 .helper_image = "/*(DEBLOBBED)*/",
5658 .fw_image_sta = "/*(DEBLOBBED)*/",
5661 .part_name = "88w8366",
5662 .helper_image = "/*(DEBLOBBED)*/",
5663 .fw_image_sta = "/*(DEBLOBBED)*/",
5664 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
5665 .fw_api_ap = MWL8K_8366_AP_FW_API,
5666 .ap_rxd_ops = &rxd_ap_ops,
5669 .part_name = "88w8764",
5670 .fw_image_ap = MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API),
5671 .fw_api_ap = MWL8K_8764_AP_FW_API,
5672 .ap_rxd_ops = &rxd_ap_ops,
5678 static const struct pci_device_id mwl8k_pci_id_table[] = {
5679 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
5680 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
5681 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
5682 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
5683 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
5684 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
5685 { PCI_VDEVICE(MARVELL, 0x2a41), .driver_data = MWL8366, },
5686 { PCI_VDEVICE(MARVELL, 0x2a42), .driver_data = MWL8366, },
5687 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
5688 { PCI_VDEVICE(MARVELL, 0x2b36), .driver_data = MWL8764, },
5691 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
5693 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
5696 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
5697 "Trying alternative firmware %s\n", pci_name(priv->pdev),
5698 priv->fw_pref, priv->fw_alt);
5699 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
5701 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5702 pci_name(priv->pdev), priv->fw_alt);
5708 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
5709 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
5711 struct mwl8k_priv *priv = context;
5712 struct mwl8k_device_info *di = priv->device_info;
5715 switch (priv->fw_state) {
5718 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
5719 pci_name(priv->pdev), di->helper_image);
5722 priv->fw_helper = fw;
5723 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
5725 if (rc && priv->fw_alt) {
5726 rc = mwl8k_request_alt_fw(priv);
5729 priv->fw_state = FW_STATE_LOADING_ALT;
5733 priv->fw_state = FW_STATE_LOADING_PREF;
5736 case FW_STATE_LOADING_PREF:
5739 rc = mwl8k_request_alt_fw(priv);
5742 priv->fw_state = FW_STATE_LOADING_ALT;
5746 priv->fw_ucode = fw;
5747 rc = mwl8k_firmware_load_success(priv);
5751 complete(&priv->firmware_loading_complete);
5755 case FW_STATE_LOADING_ALT:
5757 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5758 pci_name(priv->pdev), di->helper_image);
5761 priv->fw_ucode = fw;
5762 rc = mwl8k_firmware_load_success(priv);
5766 complete(&priv->firmware_loading_complete);
5770 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
5771 MWL8K_NAME, priv->fw_state);
5778 priv->fw_state = FW_STATE_ERROR;
5779 complete(&priv->firmware_loading_complete);
5780 mwl8k_release_firmware(priv);
5781 device_release_driver(&priv->pdev->dev);
5784 #define MAX_RESTART_ATTEMPTS 1
5785 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
5788 struct mwl8k_priv *priv = hw->priv;
5790 int count = MAX_RESTART_ATTEMPTS;
5793 /* Reset firmware and hardware */
5794 mwl8k_hw_reset(priv);
5796 /* Ask userland hotplug daemon for the device firmware */
5797 rc = mwl8k_request_firmware(priv, fw_image, nowait);
5799 wiphy_err(hw->wiphy, "Firmware files not found\n");
5806 /* Load firmware into hardware */
5807 rc = mwl8k_load_firmware(hw);
5809 wiphy_err(hw->wiphy, "Cannot start firmware\n");
5811 /* Reclaim memory once firmware is successfully loaded */
5812 mwl8k_release_firmware(priv);
5815 /* FW did not start successfully;
5816 * lets try one more time
5819 wiphy_err(hw->wiphy, "Trying to reload the firmware again\n");
5827 static int mwl8k_init_txqs(struct ieee80211_hw *hw)
5829 struct mwl8k_priv *priv = hw->priv;
5833 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
5834 rc = mwl8k_txq_init(hw, i);
5838 iowrite32(priv->txq[i].txd_dma,
5839 priv->sram + priv->txq_offset[i]);
5844 /* initialize hw after successfully loading a firmware image */
5845 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
5847 struct mwl8k_priv *priv = hw->priv;
5852 priv->rxd_ops = priv->device_info->ap_rxd_ops;
5853 if (priv->rxd_ops == NULL) {
5854 wiphy_err(hw->wiphy,
5855 "Driver does not have AP firmware image support for this hardware\n");
5857 goto err_stop_firmware;
5860 priv->rxd_ops = &rxd_sta_ops;
5863 priv->sniffer_enabled = false;
5864 priv->wmm_enabled = false;
5865 priv->pending_tx_pkts = 0;
5866 atomic_set(&priv->watchdog_event_pending, 0);
5868 rc = mwl8k_rxq_init(hw, 0);
5870 goto err_stop_firmware;
5871 rxq_refill(hw, 0, INT_MAX);
5873 /* For the sta firmware, we need to know the dma addresses of tx queues
5874 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5875 * prior to issuing this command. But for the AP case, we learn the
5876 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5877 * case we must initialize the tx queues after.
5879 priv->num_ampdu_queues = 0;
5881 rc = mwl8k_init_txqs(hw);
5883 goto err_free_queues;
5886 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
5887 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5888 iowrite32(MWL8K_A2H_INT_TX_DONE|MWL8K_A2H_INT_RX_READY|
5889 MWL8K_A2H_INT_BA_WATCHDOG,
5890 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
5891 iowrite32(MWL8K_A2H_INT_OPC_DONE,
5892 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
5894 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
5895 IRQF_SHARED, MWL8K_NAME, hw);
5897 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
5898 goto err_free_queues;
5902 * When hw restart is requested,
5903 * mac80211 will take care of clearing
5904 * the ampdu streams, so do not clear
5905 * the ampdu state here
5907 if (!priv->hw_restart_in_progress)
5908 memset(priv->ampdu, 0, sizeof(priv->ampdu));
5911 * Temporarily enable interrupts. Initial firmware host
5912 * commands use interrupts and avoid polling. Disable
5913 * interrupts when done.
5915 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5917 /* Get config data, mac addrs etc */
5919 rc = mwl8k_cmd_get_hw_spec_ap(hw);
5921 rc = mwl8k_init_txqs(hw);
5923 rc = mwl8k_cmd_set_hw_spec(hw);
5925 rc = mwl8k_cmd_get_hw_spec_sta(hw);
5928 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
5932 /* Turn radio off */
5933 rc = mwl8k_cmd_radio_disable(hw);
5935 wiphy_err(hw->wiphy, "Cannot disable\n");
5939 /* Clear MAC address */
5940 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
5942 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
5946 /* Configure Antennas */
5947 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
5949 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
5950 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
5952 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
5955 /* Disable interrupts */
5956 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5957 free_irq(priv->pdev->irq, hw);
5959 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5960 priv->device_info->part_name,
5961 priv->hw_rev, hw->wiphy->perm_addr,
5962 priv->ap_fw ? "AP" : "STA",
5963 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
5964 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
5969 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5970 free_irq(priv->pdev->irq, hw);
5973 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5974 mwl8k_txq_deinit(hw, i);
5975 mwl8k_rxq_deinit(hw, 0);
5978 mwl8k_hw_reset(priv);
5984 * invoke mwl8k_reload_firmware to change the firmware image after the device
5985 * has already been registered
5987 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
5990 struct mwl8k_priv *priv = hw->priv;
5991 struct mwl8k_vif *vif, *tmp_vif;
5994 mwl8k_rxq_deinit(hw, 0);
5997 * All the existing interfaces are re-added by the ieee80211_reconfig;
5998 * which means driver should remove existing interfaces before calling
5999 * ieee80211_restart_hw
6001 if (priv->hw_restart_in_progress)
6002 list_for_each_entry_safe(vif, tmp_vif, &priv->vif_list, list)
6003 mwl8k_remove_vif(priv, vif);
6005 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6006 mwl8k_txq_deinit(hw, i);
6008 rc = mwl8k_init_firmware(hw, fw_image, false);
6012 rc = mwl8k_probe_hw(hw);
6016 if (priv->hw_restart_in_progress)
6019 rc = mwl8k_start(hw);
6023 rc = mwl8k_config(hw, ~0);
6027 for (i = 0; i < MWL8K_TX_WMM_QUEUES; i++) {
6028 rc = mwl8k_conf_tx(hw, NULL, i, &priv->wmm_params[i]);
6036 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
6040 static const struct ieee80211_iface_limit ap_if_limits[] = {
6041 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
6042 { .max = 1, .types = BIT(NL80211_IFTYPE_STATION) },
6045 static const struct ieee80211_iface_combination ap_if_comb = {
6046 .limits = ap_if_limits,
6047 .n_limits = ARRAY_SIZE(ap_if_limits),
6048 .max_interfaces = 8,
6049 .num_different_channels = 1,
6053 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
6055 struct ieee80211_hw *hw = priv->hw;
6058 rc = mwl8k_load_firmware(hw);
6059 mwl8k_release_firmware(priv);
6061 wiphy_err(hw->wiphy, "Cannot start firmware\n");
6066 * Extra headroom is the size of the required DMA header
6067 * minus the size of the smallest 802.11 frame (CTS frame).
6069 hw->extra_tx_headroom =
6070 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
6072 hw->extra_tx_headroom -= priv->ap_fw ? REDUCED_TX_HEADROOM : 0;
6074 hw->queues = MWL8K_TX_WMM_QUEUES;
6076 /* Set rssi values to dBm */
6077 ieee80211_hw_set(hw, SIGNAL_DBM);
6078 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
6081 * Ask mac80211 to not to trigger PS mode
6082 * based on PM bit of incoming frames.
6085 ieee80211_hw_set(hw, AP_LINK_PS);
6087 hw->vif_data_size = sizeof(struct mwl8k_vif);
6088 hw->sta_data_size = sizeof(struct mwl8k_sta);
6090 priv->macids_used = 0;
6091 INIT_LIST_HEAD(&priv->vif_list);
6093 /* Set default radio state and preamble */
6094 priv->radio_on = false;
6095 priv->radio_short_preamble = false;
6097 /* Finalize join worker */
6098 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
6099 /* Handle watchdog ba events */
6100 INIT_WORK(&priv->watchdog_ba_handle, mwl8k_watchdog_ba_events);
6101 /* To reload the firmware if it crashes */
6102 INIT_WORK(&priv->fw_reload, mwl8k_hw_restart_work);
6104 /* TX reclaim and RX tasklets. */
6105 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
6106 tasklet_disable(&priv->poll_tx_task);
6107 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
6108 tasklet_disable(&priv->poll_rx_task);
6110 /* Power management cookie */
6111 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
6112 if (priv->cookie == NULL)
6115 mutex_init(&priv->fw_mutex);
6116 priv->fw_mutex_owner = NULL;
6117 priv->fw_mutex_depth = 0;
6118 priv->hostcmd_wait = NULL;
6120 spin_lock_init(&priv->tx_lock);
6122 spin_lock_init(&priv->stream_lock);
6124 priv->tx_wait = NULL;
6126 rc = mwl8k_probe_hw(hw);
6128 goto err_free_cookie;
6130 hw->wiphy->interface_modes = 0;
6132 if (priv->ap_macids_supported || priv->device_info->fw_image_ap) {
6133 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
6134 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
6135 hw->wiphy->iface_combinations = &ap_if_comb;
6136 hw->wiphy->n_iface_combinations = 1;
6139 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
6140 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
6142 rc = ieee80211_register_hw(hw);
6144 wiphy_err(hw->wiphy, "Cannot register device\n");
6145 goto err_unprobe_hw;
6151 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6152 mwl8k_txq_deinit(hw, i);
6153 mwl8k_rxq_deinit(hw, 0);
6156 if (priv->cookie != NULL)
6157 pci_free_consistent(priv->pdev, 4,
6158 priv->cookie, priv->cookie_dma);
6162 static int mwl8k_probe(struct pci_dev *pdev,
6163 const struct pci_device_id *id)
6165 static int printed_version;
6166 struct ieee80211_hw *hw;
6167 struct mwl8k_priv *priv;
6168 struct mwl8k_device_info *di;
6171 if (!printed_version) {
6172 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
6173 printed_version = 1;
6177 rc = pci_enable_device(pdev);
6179 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
6184 rc = pci_request_regions(pdev, MWL8K_NAME);
6186 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
6188 goto err_disable_device;
6191 pci_set_master(pdev);
6194 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
6196 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
6201 SET_IEEE80211_DEV(hw, &pdev->dev);
6202 pci_set_drvdata(pdev, hw);
6207 priv->device_info = &mwl8k_info_tbl[id->driver_data];
6209 if (id->driver_data == MWL8764)
6210 priv->is_8764 = true;
6212 priv->sram = pci_iomap(pdev, 0, 0x10000);
6213 if (priv->sram == NULL) {
6214 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
6220 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
6221 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
6223 priv->regs = pci_iomap(pdev, 1, 0x10000);
6224 if (priv->regs == NULL) {
6225 priv->regs = pci_iomap(pdev, 2, 0x10000);
6226 if (priv->regs == NULL) {
6227 wiphy_err(hw->wiphy, "Cannot map device registers\n");
6234 * Choose the initial fw image depending on user input. If a second
6235 * image is available, make it the alternative image that will be
6236 * loaded if the first one fails.
6238 init_completion(&priv->firmware_loading_complete);
6239 di = priv->device_info;
6240 if (ap_mode_default && di->fw_image_ap) {
6241 priv->fw_pref = di->fw_image_ap;
6242 priv->fw_alt = di->fw_image_sta;
6243 } else if (!ap_mode_default && di->fw_image_sta) {
6244 priv->fw_pref = di->fw_image_sta;
6245 priv->fw_alt = di->fw_image_ap;
6246 } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
6247 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
6248 priv->fw_pref = di->fw_image_sta;
6249 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
6250 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
6251 priv->fw_pref = di->fw_image_ap;
6253 rc = mwl8k_init_firmware(hw, priv->fw_pref, true);
6255 goto err_stop_firmware;
6257 priv->hw_restart_in_progress = false;
6259 priv->running_bsses = 0;
6264 mwl8k_hw_reset(priv);
6267 if (priv->regs != NULL)
6268 pci_iounmap(pdev, priv->regs);
6270 if (priv->sram != NULL)
6271 pci_iounmap(pdev, priv->sram);
6273 ieee80211_free_hw(hw);
6276 pci_release_regions(pdev);
6279 pci_disable_device(pdev);
6284 static void mwl8k_remove(struct pci_dev *pdev)
6286 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
6287 struct mwl8k_priv *priv;
6294 wait_for_completion(&priv->firmware_loading_complete);
6296 if (priv->fw_state == FW_STATE_ERROR) {
6297 mwl8k_hw_reset(priv);
6301 ieee80211_stop_queues(hw);
6303 ieee80211_unregister_hw(hw);
6305 /* Remove TX reclaim and RX tasklets. */
6306 tasklet_kill(&priv->poll_tx_task);
6307 tasklet_kill(&priv->poll_rx_task);
6310 mwl8k_hw_reset(priv);
6312 /* Return all skbs to mac80211 */
6313 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6314 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
6316 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6317 mwl8k_txq_deinit(hw, i);
6319 mwl8k_rxq_deinit(hw, 0);
6321 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
6324 pci_iounmap(pdev, priv->regs);
6325 pci_iounmap(pdev, priv->sram);
6326 ieee80211_free_hw(hw);
6327 pci_release_regions(pdev);
6328 pci_disable_device(pdev);
6331 static struct pci_driver mwl8k_driver = {
6333 .id_table = mwl8k_pci_id_table,
6334 .probe = mwl8k_probe,
6335 .remove = mwl8k_remove,
6338 module_pci_driver(mwl8k_driver);
6340 MODULE_DESCRIPTION(MWL8K_DESC);
6341 MODULE_VERSION(MWL8K_VERSION);
6342 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
6343 MODULE_LICENSE("GPL");