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 request_firmware_nowait(THIS_MODULE, 1, fname,
532 &priv->pdev->dev, GFP_KERNEL,
533 priv, mwl8k_fw_state_machine);
535 return request_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_alloc_consistent(priv->pdev, size, &rxq->rxd_dma);
1163 if (rxq->rxd == NULL) {
1164 wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n");
1167 memset(rxq->rxd, 0, size);
1169 rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL);
1170 if (rxq->buf == NULL) {
1171 pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
1175 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1179 dma_addr_t next_dma_addr;
1181 desc_size = priv->rxd_ops->rxd_size;
1182 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
1185 if (nexti == MWL8K_RX_DESCS)
1187 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
1189 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
1195 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
1197 struct mwl8k_priv *priv = hw->priv;
1198 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1202 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
1203 struct sk_buff *skb;
1208 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
1212 addr = pci_map_single(priv->pdev, skb->data,
1213 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
1217 if (rxq->tail == MWL8K_RX_DESCS)
1219 rxq->buf[rx].skb = skb;
1220 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
1222 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
1223 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
1231 /* Must be called only when the card's reception is completely halted */
1232 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1234 struct mwl8k_priv *priv = hw->priv;
1235 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1238 if (rxq->rxd == NULL)
1241 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1242 if (rxq->buf[i].skb != NULL) {
1243 pci_unmap_single(priv->pdev,
1244 dma_unmap_addr(&rxq->buf[i], dma),
1245 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1246 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1248 kfree_skb(rxq->buf[i].skb);
1249 rxq->buf[i].skb = NULL;
1256 pci_free_consistent(priv->pdev,
1257 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1258 rxq->rxd, rxq->rxd_dma);
1264 * Scan a list of BSSIDs to process for finalize join.
1265 * Allows for extension to process multiple BSSIDs.
1268 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1270 return priv->capture_beacon &&
1271 ieee80211_is_beacon(wh->frame_control) &&
1272 ether_addr_equal_64bits(wh->addr3, priv->capture_bssid);
1275 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1276 struct sk_buff *skb)
1278 struct mwl8k_priv *priv = hw->priv;
1280 priv->capture_beacon = false;
1281 memset(priv->capture_bssid, 0, ETH_ALEN);
1284 * Use GFP_ATOMIC as rxq_process is called from
1285 * the primary interrupt handler, memory allocation call
1288 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1289 if (priv->beacon_skb != NULL)
1290 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1293 static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list,
1296 struct mwl8k_vif *mwl8k_vif;
1298 list_for_each_entry(mwl8k_vif,
1300 if (memcmp(bssid, mwl8k_vif->bssid,
1308 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1310 struct mwl8k_priv *priv = hw->priv;
1311 struct mwl8k_vif *mwl8k_vif = NULL;
1312 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1316 while (rxq->rxd_count && limit--) {
1317 struct sk_buff *skb;
1320 struct ieee80211_rx_status status;
1321 struct ieee80211_hdr *wh;
1324 skb = rxq->buf[rxq->head].skb;
1328 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1330 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1335 rxq->buf[rxq->head].skb = NULL;
1337 pci_unmap_single(priv->pdev,
1338 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1339 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1340 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1343 if (rxq->head == MWL8K_RX_DESCS)
1348 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1351 * Check for a pending join operation. Save a
1352 * copy of the beacon and schedule a tasklet to
1353 * send a FINALIZE_JOIN command to the firmware.
1355 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1356 mwl8k_save_beacon(hw, skb);
1358 if (ieee80211_has_protected(wh->frame_control)) {
1360 /* Check if hw crypto has been enabled for
1361 * this bss. If yes, set the status flags
1364 mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list,
1367 if (mwl8k_vif != NULL &&
1368 mwl8k_vif->is_hw_crypto_enabled) {
1370 * When MMIC ERROR is encountered
1371 * by the firmware, payload is
1372 * dropped and only 32 bytes of
1373 * mwl8k Firmware header is sent
1376 * We need to add four bytes of
1377 * key information. In it
1378 * MAC80211 expects keyidx set to
1379 * 0 for triggering Counter
1380 * Measure of MMIC failure.
1382 if (status.flag & RX_FLAG_MMIC_ERROR) {
1383 struct mwl8k_dma_data *tr;
1384 tr = (struct mwl8k_dma_data *)skb->data;
1385 memset((void *)&(tr->data), 0, 4);
1389 if (!ieee80211_is_auth(wh->frame_control))
1390 status.flag |= RX_FLAG_IV_STRIPPED |
1392 RX_FLAG_MMIC_STRIPPED;
1396 skb_put(skb, pkt_len);
1397 mwl8k_remove_dma_header(skb, qos);
1398 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1399 ieee80211_rx_irqsafe(hw, skb);
1409 * Packet transmission.
1412 #define MWL8K_TXD_STATUS_OK 0x00000001
1413 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1414 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1415 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1416 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1418 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1419 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1420 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1421 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1422 #define MWL8K_QOS_EOSP 0x0010
1424 struct mwl8k_tx_desc {
1429 __le32 pkt_phys_addr;
1431 __u8 dest_MAC_addr[ETH_ALEN];
1432 __le32 next_txd_phys_addr;
1439 #define MWL8K_TX_DESCS 128
1441 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1443 struct mwl8k_priv *priv = hw->priv;
1444 struct mwl8k_tx_queue *txq = priv->txq + index;
1452 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1454 txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
1455 if (txq->txd == NULL) {
1456 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1459 memset(txq->txd, 0, size);
1461 txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL);
1462 if (txq->skb == NULL) {
1463 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1467 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1468 struct mwl8k_tx_desc *tx_desc;
1471 tx_desc = txq->txd + i;
1472 nexti = (i + 1) % MWL8K_TX_DESCS;
1474 tx_desc->status = 0;
1475 tx_desc->next_txd_phys_addr =
1476 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1482 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1484 iowrite32(MWL8K_H2A_INT_PPA_READY,
1485 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1486 iowrite32(MWL8K_H2A_INT_DUMMY,
1487 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1488 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1491 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1493 struct mwl8k_priv *priv = hw->priv;
1496 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
1497 struct mwl8k_tx_queue *txq = priv->txq + i;
1503 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1504 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1507 status = le32_to_cpu(tx_desc->status);
1508 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1513 if (tx_desc->pkt_len == 0)
1517 wiphy_err(hw->wiphy,
1518 "txq[%d] len=%d head=%d tail=%d "
1519 "fw_owned=%d drv_owned=%d unused=%d\n",
1521 txq->len, txq->head, txq->tail,
1522 fw_owned, drv_owned, unused);
1527 * Must be called with priv->fw_mutex held and tx queues stopped.
1529 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1531 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1533 struct mwl8k_priv *priv = hw->priv;
1534 DECLARE_COMPLETION_ONSTACK(tx_wait);
1540 /* Since fw restart is in progress, allow only the firmware
1541 * commands from the restart code and block the other
1542 * commands since they are going to fail in any case since
1543 * the firmware has crashed
1545 if (priv->hw_restart_in_progress) {
1546 if (priv->hw_restart_owner == current)
1552 if (atomic_read(&priv->watchdog_event_pending))
1556 * The TX queues are stopped at this point, so this test
1557 * doesn't need to take ->tx_lock.
1559 if (!priv->pending_tx_pkts)
1565 spin_lock_bh(&priv->tx_lock);
1566 priv->tx_wait = &tx_wait;
1569 unsigned long timeout;
1571 oldcount = priv->pending_tx_pkts;
1573 spin_unlock_bh(&priv->tx_lock);
1574 timeout = wait_for_completion_timeout(&tx_wait,
1575 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1577 if (atomic_read(&priv->watchdog_event_pending)) {
1578 spin_lock_bh(&priv->tx_lock);
1579 priv->tx_wait = NULL;
1580 spin_unlock_bh(&priv->tx_lock);
1584 spin_lock_bh(&priv->tx_lock);
1586 if (timeout || !priv->pending_tx_pkts) {
1587 WARN_ON(priv->pending_tx_pkts);
1589 wiphy_notice(hw->wiphy, "tx rings drained\n");
1594 mwl8k_tx_start(priv);
1599 if (priv->pending_tx_pkts < oldcount) {
1600 wiphy_notice(hw->wiphy,
1601 "waiting for tx rings to drain (%d -> %d pkts)\n",
1602 oldcount, priv->pending_tx_pkts);
1607 priv->tx_wait = NULL;
1609 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1610 MWL8K_TX_WAIT_TIMEOUT_MS);
1611 mwl8k_dump_tx_rings(hw);
1612 priv->hw_restart_in_progress = true;
1613 ieee80211_queue_work(hw, &priv->fw_reload);
1617 priv->tx_wait = NULL;
1618 spin_unlock_bh(&priv->tx_lock);
1623 #define MWL8K_TXD_SUCCESS(status) \
1624 ((status) & (MWL8K_TXD_STATUS_OK | \
1625 MWL8K_TXD_STATUS_OK_RETRY | \
1626 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1628 static int mwl8k_tid_queue_mapping(u8 tid)
1635 return IEEE80211_AC_BE;
1638 return IEEE80211_AC_BK;
1641 return IEEE80211_AC_VI;
1644 return IEEE80211_AC_VO;
1650 /* The firmware will fill in the rate information
1651 * for each packet that gets queued in the hardware
1652 * and these macros will interpret that info.
1655 #define RI_FORMAT(a) (a & 0x0001)
1656 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1659 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1661 struct mwl8k_priv *priv = hw->priv;
1662 struct mwl8k_tx_queue *txq = priv->txq + index;
1666 while (txq->len > 0 && limit--) {
1668 struct mwl8k_tx_desc *tx_desc;
1671 struct sk_buff *skb;
1672 struct ieee80211_tx_info *info;
1674 struct ieee80211_sta *sta;
1675 struct mwl8k_sta *sta_info = NULL;
1677 struct ieee80211_hdr *wh;
1680 tx_desc = txq->txd + tx;
1682 status = le32_to_cpu(tx_desc->status);
1684 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1688 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1691 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1692 BUG_ON(txq->len == 0);
1694 priv->pending_tx_pkts--;
1696 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1697 size = le16_to_cpu(tx_desc->pkt_len);
1699 txq->skb[tx] = NULL;
1701 BUG_ON(skb == NULL);
1702 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1704 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1706 wh = (struct ieee80211_hdr *) skb->data;
1708 /* Mark descriptor as unused */
1709 tx_desc->pkt_phys_addr = 0;
1710 tx_desc->pkt_len = 0;
1712 info = IEEE80211_SKB_CB(skb);
1713 if (ieee80211_is_data(wh->frame_control)) {
1715 sta = ieee80211_find_sta_by_ifaddr(hw, wh->addr1,
1718 sta_info = MWL8K_STA(sta);
1719 BUG_ON(sta_info == NULL);
1720 rate_info = le16_to_cpu(tx_desc->rate_info);
1721 /* If rate is < 6.5 Mpbs for an ht station
1722 * do not form an ampdu. If the station is a
1723 * legacy station (format = 0), do not form an
1726 if (RI_RATE_ID_MCS(rate_info) < 1 ||
1727 RI_FORMAT(rate_info) == 0) {
1728 sta_info->is_ampdu_allowed = false;
1730 sta_info->is_ampdu_allowed = true;
1736 ieee80211_tx_info_clear_status(info);
1738 /* Rate control is happening in the firmware.
1739 * Ensure no tx rate is being reported.
1741 info->status.rates[0].idx = -1;
1742 info->status.rates[0].count = 1;
1744 if (MWL8K_TXD_SUCCESS(status))
1745 info->flags |= IEEE80211_TX_STAT_ACK;
1747 ieee80211_tx_status_irqsafe(hw, skb);
1755 /* must be called only when the card's transmit is completely halted */
1756 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1758 struct mwl8k_priv *priv = hw->priv;
1759 struct mwl8k_tx_queue *txq = priv->txq + index;
1761 if (txq->txd == NULL)
1764 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1769 pci_free_consistent(priv->pdev,
1770 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1771 txq->txd, txq->txd_dma);
1775 /* caller must hold priv->stream_lock when calling the stream functions */
1776 static struct mwl8k_ampdu_stream *
1777 mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid)
1779 struct mwl8k_ampdu_stream *stream;
1780 struct mwl8k_priv *priv = hw->priv;
1783 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1784 stream = &priv->ampdu[i];
1785 if (stream->state == AMPDU_NO_STREAM) {
1787 stream->state = AMPDU_STREAM_NEW;
1790 wiphy_debug(hw->wiphy, "Added a new stream for %pM %d",
1799 mwl8k_start_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1803 /* if the stream has already been started, don't start it again */
1804 if (stream->state != AMPDU_STREAM_NEW)
1806 ret = ieee80211_start_tx_ba_session(stream->sta, stream->tid, 0);
1808 wiphy_debug(hw->wiphy, "Failed to start stream for %pM %d: "
1809 "%d\n", stream->sta->addr, stream->tid, ret);
1811 wiphy_debug(hw->wiphy, "Started stream for %pM %d\n",
1812 stream->sta->addr, stream->tid);
1817 mwl8k_remove_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1819 wiphy_debug(hw->wiphy, "Remove stream for %pM %d\n", stream->sta->addr,
1821 memset(stream, 0, sizeof(*stream));
1824 static struct mwl8k_ampdu_stream *
1825 mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid)
1827 struct mwl8k_priv *priv = hw->priv;
1830 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1831 struct mwl8k_ampdu_stream *stream;
1832 stream = &priv->ampdu[i];
1833 if (stream->state == AMPDU_NO_STREAM)
1835 if (!memcmp(stream->sta->addr, addr, ETH_ALEN) &&
1842 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1843 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta *sta, u8 tid)
1845 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1846 struct tx_traffic_info *tx_stats;
1848 BUG_ON(tid >= MWL8K_MAX_TID);
1849 tx_stats = &sta_info->tx_stats[tid];
1851 return sta_info->is_ampdu_allowed &&
1852 tx_stats->pkts > MWL8K_AMPDU_PACKET_THRESHOLD;
1855 static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
1857 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1858 struct tx_traffic_info *tx_stats;
1860 BUG_ON(tid >= MWL8K_MAX_TID);
1861 tx_stats = &sta_info->tx_stats[tid];
1863 if (tx_stats->start_time == 0)
1864 tx_stats->start_time = jiffies;
1866 /* reset the packet count after each second elapses. If the number of
1867 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1868 * an ampdu stream to be started.
1870 if (jiffies - tx_stats->start_time > HZ) {
1872 tx_stats->start_time = 0;
1877 /* The hardware ampdu queues start from 5.
1878 * txpriorities for ampdu queues are
1879 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1880 * and queue 3 is lowest (queue 4 is reserved)
1885 mwl8k_txq_xmit(struct ieee80211_hw *hw,
1887 struct ieee80211_sta *sta,
1888 struct sk_buff *skb)
1890 struct mwl8k_priv *priv = hw->priv;
1891 struct ieee80211_tx_info *tx_info;
1892 struct mwl8k_vif *mwl8k_vif;
1893 struct ieee80211_hdr *wh;
1894 struct mwl8k_tx_queue *txq;
1895 struct mwl8k_tx_desc *tx;
1902 struct mwl8k_ampdu_stream *stream = NULL;
1903 bool start_ba_session = false;
1904 bool mgmtframe = false;
1905 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1906 bool eapol_frame = false;
1908 wh = (struct ieee80211_hdr *)skb->data;
1909 if (ieee80211_is_data_qos(wh->frame_control))
1910 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1914 if (skb->protocol == cpu_to_be16(ETH_P_PAE))
1917 if (ieee80211_is_mgmt(wh->frame_control))
1921 mwl8k_encapsulate_tx_frame(priv, skb);
1923 mwl8k_add_dma_header(priv, skb, 0, 0);
1925 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1927 tx_info = IEEE80211_SKB_CB(skb);
1928 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1930 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1931 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1932 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1933 mwl8k_vif->seqno += 0x10;
1936 /* Setup firmware control bit fields for each frame type. */
1939 if (ieee80211_is_mgmt(wh->frame_control) ||
1940 ieee80211_is_ctl(wh->frame_control)) {
1942 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1943 } else if (ieee80211_is_data(wh->frame_control)) {
1945 if (is_multicast_ether_addr(wh->addr1))
1946 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1948 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1949 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1950 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1952 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1955 /* Queue ADDBA request in the respective data queue. While setting up
1956 * the ampdu stream, mac80211 queues further packets for that
1957 * particular ra/tid pair. However, packets piled up in the hardware
1958 * for that ra/tid pair will still go out. ADDBA request and the
1959 * related data packets going out from different queues asynchronously
1960 * will cause a shift in the receiver window which might result in
1961 * ampdu packets getting dropped at the receiver after the stream has
1964 if (unlikely(ieee80211_is_action(wh->frame_control) &&
1965 mgmt->u.action.category == WLAN_CATEGORY_BACK &&
1966 mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ &&
1968 u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1969 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1970 index = mwl8k_tid_queue_mapping(tid);
1975 if (priv->ap_fw && sta && sta->ht_cap.ht_supported && !eapol_frame &&
1976 ieee80211_is_data_qos(wh->frame_control)) {
1978 mwl8k_tx_count_packet(sta, tid);
1979 spin_lock(&priv->stream_lock);
1980 stream = mwl8k_lookup_stream(hw, sta->addr, tid);
1981 if (stream != NULL) {
1982 if (stream->state == AMPDU_STREAM_ACTIVE) {
1983 WARN_ON(!(qos & MWL8K_QOS_ACK_POLICY_BLOCKACK));
1984 txpriority = (BA_QUEUE + stream->idx) %
1986 if (stream->idx <= 1)
1987 index = stream->idx +
1988 MWL8K_TX_WMM_QUEUES;
1990 } else if (stream->state == AMPDU_STREAM_NEW) {
1991 /* We get here if the driver sends us packets
1992 * after we've initiated a stream, but before
1993 * our ampdu_action routine has been called
1994 * with IEEE80211_AMPDU_TX_START to get the SSN
1995 * for the ADDBA request. So this packet can
1996 * go out with no risk of sequence number
1997 * mismatch. No special handling is required.
2000 /* Drop packets that would go out after the
2001 * ADDBA request was sent but before the ADDBA
2002 * response is received. If we don't do this,
2003 * the recipient would probably receive it
2004 * after the ADDBA request with SSN 0. This
2005 * will cause the recipient's BA receive window
2006 * to shift, which would cause the subsequent
2007 * packets in the BA stream to be discarded.
2008 * mac80211 queues our packets for us in this
2009 * case, so this is really just a safety check.
2011 wiphy_warn(hw->wiphy,
2012 "Cannot send packet while ADDBA "
2013 "dialog is underway.\n");
2014 spin_unlock(&priv->stream_lock);
2019 /* Defer calling mwl8k_start_stream so that the current
2020 * skb can go out before the ADDBA request. This
2021 * prevents sequence number mismatch at the recepient
2022 * as described above.
2024 if (mwl8k_ampdu_allowed(sta, tid)) {
2025 stream = mwl8k_add_stream(hw, sta, tid);
2027 start_ba_session = true;
2030 spin_unlock(&priv->stream_lock);
2032 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
2033 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
2036 dma = pci_map_single(priv->pdev, skb->data,
2037 skb->len, PCI_DMA_TODEVICE);
2039 if (pci_dma_mapping_error(priv->pdev, dma)) {
2040 wiphy_debug(hw->wiphy,
2041 "failed to dma map skb, dropping TX frame.\n");
2042 if (start_ba_session) {
2043 spin_lock(&priv->stream_lock);
2044 mwl8k_remove_stream(hw, stream);
2045 spin_unlock(&priv->stream_lock);
2051 spin_lock_bh(&priv->tx_lock);
2053 txq = priv->txq + index;
2055 /* Mgmt frames that go out frequently are probe
2056 * responses. Other mgmt frames got out relatively
2057 * infrequently. Hence reserve 2 buffers so that
2058 * other mgmt frames do not get dropped due to an
2059 * already queued probe response in one of the
2063 if (txq->len >= MWL8K_TX_DESCS - 2) {
2064 if (!mgmtframe || txq->len == MWL8K_TX_DESCS) {
2065 if (start_ba_session) {
2066 spin_lock(&priv->stream_lock);
2067 mwl8k_remove_stream(hw, stream);
2068 spin_unlock(&priv->stream_lock);
2070 mwl8k_tx_start(priv);
2071 spin_unlock_bh(&priv->tx_lock);
2072 pci_unmap_single(priv->pdev, dma, skb->len,
2079 BUG_ON(txq->skb[txq->tail] != NULL);
2080 txq->skb[txq->tail] = skb;
2082 tx = txq->txd + txq->tail;
2083 tx->data_rate = txdatarate;
2084 tx->tx_priority = txpriority;
2085 tx->qos_control = cpu_to_le16(qos);
2086 tx->pkt_phys_addr = cpu_to_le32(dma);
2087 tx->pkt_len = cpu_to_le16(skb->len);
2089 if (!priv->ap_fw && sta != NULL)
2090 tx->peer_id = MWL8K_STA(sta)->peer_id;
2094 if (priv->ap_fw && ieee80211_is_data(wh->frame_control) && !eapol_frame)
2095 tx->timestamp = cpu_to_le32(ioread32(priv->regs +
2096 MWL8K_HW_TIMER_REGISTER));
2101 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
2104 priv->pending_tx_pkts++;
2107 if (txq->tail == MWL8K_TX_DESCS)
2110 mwl8k_tx_start(priv);
2112 spin_unlock_bh(&priv->tx_lock);
2114 /* Initiate the ampdu session here */
2115 if (start_ba_session) {
2116 spin_lock(&priv->stream_lock);
2117 if (mwl8k_start_stream(hw, stream))
2118 mwl8k_remove_stream(hw, stream);
2119 spin_unlock(&priv->stream_lock);
2127 * We have the following requirements for issuing firmware commands:
2128 * - Some commands require that the packet transmit path is idle when
2129 * the command is issued. (For simplicity, we'll just quiesce the
2130 * transmit path for every command.)
2131 * - There are certain sequences of commands that need to be issued to
2132 * the hardware sequentially, with no other intervening commands.
2134 * This leads to an implementation of a "firmware lock" as a mutex that
2135 * can be taken recursively, and which is taken by both the low-level
2136 * command submission function (mwl8k_post_cmd) as well as any users of
2137 * that function that require issuing of an atomic sequence of commands,
2138 * and quiesces the transmit path whenever it's taken.
2140 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
2142 struct mwl8k_priv *priv = hw->priv;
2144 if (priv->fw_mutex_owner != current) {
2147 mutex_lock(&priv->fw_mutex);
2148 ieee80211_stop_queues(hw);
2150 rc = mwl8k_tx_wait_empty(hw);
2152 if (!priv->hw_restart_in_progress)
2153 ieee80211_wake_queues(hw);
2155 mutex_unlock(&priv->fw_mutex);
2160 priv->fw_mutex_owner = current;
2163 priv->fw_mutex_depth++;
2168 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
2170 struct mwl8k_priv *priv = hw->priv;
2172 if (!--priv->fw_mutex_depth) {
2173 if (!priv->hw_restart_in_progress)
2174 ieee80211_wake_queues(hw);
2176 priv->fw_mutex_owner = NULL;
2177 mutex_unlock(&priv->fw_mutex);
2181 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable,
2185 * Command processing.
2188 /* Timeout firmware commands after 10s */
2189 #define MWL8K_CMD_TIMEOUT_MS 10000
2191 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
2193 DECLARE_COMPLETION_ONSTACK(cmd_wait);
2194 struct mwl8k_priv *priv = hw->priv;
2195 void __iomem *regs = priv->regs;
2196 dma_addr_t dma_addr;
2197 unsigned int dma_size;
2199 unsigned long timeout = 0;
2203 wiphy_dbg(hw->wiphy, "Posting %s [%d]\n",
2204 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), cmd->macid);
2206 /* Before posting firmware commands that could change the hardware
2207 * characteristics, make sure that all BSSes are stopped temporary.
2208 * Enable these stopped BSSes after completion of the commands
2211 rc = mwl8k_fw_lock(hw);
2215 if (priv->ap_fw && priv->running_bsses) {
2216 switch (le16_to_cpu(cmd->code)) {
2217 case MWL8K_CMD_SET_RF_CHANNEL:
2218 case MWL8K_CMD_RADIO_CONTROL:
2219 case MWL8K_CMD_RF_TX_POWER:
2220 case MWL8K_CMD_TX_POWER:
2221 case MWL8K_CMD_RF_ANTENNA:
2222 case MWL8K_CMD_RTS_THRESHOLD:
2223 case MWL8K_CMD_MIMO_CONFIG:
2224 bitmap = priv->running_bsses;
2225 mwl8k_enable_bsses(hw, false, bitmap);
2230 cmd->result = (__force __le16) 0xffff;
2231 dma_size = le16_to_cpu(cmd->length);
2232 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
2233 PCI_DMA_BIDIRECTIONAL);
2234 if (pci_dma_mapping_error(priv->pdev, dma_addr))
2237 priv->hostcmd_wait = &cmd_wait;
2238 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
2239 iowrite32(MWL8K_H2A_INT_DOORBELL,
2240 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2241 iowrite32(MWL8K_H2A_INT_DUMMY,
2242 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2244 timeout = wait_for_completion_timeout(&cmd_wait,
2245 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
2247 priv->hostcmd_wait = NULL;
2250 pci_unmap_single(priv->pdev, dma_addr, dma_size,
2251 PCI_DMA_BIDIRECTIONAL);
2254 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
2255 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2256 MWL8K_CMD_TIMEOUT_MS);
2261 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
2263 rc = cmd->result ? -EINVAL : 0;
2265 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
2266 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2267 le16_to_cpu(cmd->result));
2269 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
2270 mwl8k_cmd_name(cmd->code,
2276 mwl8k_enable_bsses(hw, true, bitmap);
2278 mwl8k_fw_unlock(hw);
2283 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
2284 struct ieee80211_vif *vif,
2285 struct mwl8k_cmd_pkt *cmd)
2288 cmd->macid = MWL8K_VIF(vif)->macid;
2289 return mwl8k_post_cmd(hw, cmd);
2293 * Setup code shared between STA and AP firmware images.
2295 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
2297 struct mwl8k_priv *priv = hw->priv;
2299 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
2300 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
2302 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
2303 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
2305 priv->band_24.band = IEEE80211_BAND_2GHZ;
2306 priv->band_24.channels = priv->channels_24;
2307 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
2308 priv->band_24.bitrates = priv->rates_24;
2309 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
2311 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
2314 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
2316 struct mwl8k_priv *priv = hw->priv;
2318 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
2319 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
2321 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
2322 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
2324 priv->band_50.band = IEEE80211_BAND_5GHZ;
2325 priv->band_50.channels = priv->channels_50;
2326 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
2327 priv->band_50.bitrates = priv->rates_50;
2328 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
2330 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
2334 * CMD_GET_HW_SPEC (STA version).
2336 struct mwl8k_cmd_get_hw_spec_sta {
2337 struct mwl8k_cmd_pkt header;
2339 __u8 host_interface;
2341 __u8 perm_addr[ETH_ALEN];
2346 __u8 mcs_bitmap[16];
2347 __le32 rx_queue_ptr;
2348 __le32 num_tx_queues;
2349 __le32 tx_queue_ptrs[MWL8K_TX_WMM_QUEUES];
2351 __le32 num_tx_desc_per_queue;
2355 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2356 #define MWL8K_CAP_GREENFIELD 0x08000000
2357 #define MWL8K_CAP_AMPDU 0x04000000
2358 #define MWL8K_CAP_RX_STBC 0x01000000
2359 #define MWL8K_CAP_TX_STBC 0x00800000
2360 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2361 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2362 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2363 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2364 #define MWL8K_CAP_DELAY_BA 0x00003000
2365 #define MWL8K_CAP_MIMO 0x00000200
2366 #define MWL8K_CAP_40MHZ 0x00000100
2367 #define MWL8K_CAP_BAND_MASK 0x00000007
2368 #define MWL8K_CAP_5GHZ 0x00000004
2369 #define MWL8K_CAP_2GHZ4 0x00000001
2372 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
2373 struct ieee80211_supported_band *band, u32 cap)
2378 band->ht_cap.ht_supported = 1;
2380 if (cap & MWL8K_CAP_MAX_AMSDU)
2381 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
2382 if (cap & MWL8K_CAP_GREENFIELD)
2383 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
2384 if (cap & MWL8K_CAP_AMPDU) {
2385 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
2386 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2387 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2389 if (cap & MWL8K_CAP_RX_STBC)
2390 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
2391 if (cap & MWL8K_CAP_TX_STBC)
2392 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
2393 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
2394 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
2395 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
2396 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
2397 if (cap & MWL8K_CAP_DELAY_BA)
2398 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
2399 if (cap & MWL8K_CAP_40MHZ)
2400 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2402 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
2403 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
2405 band->ht_cap.mcs.rx_mask[0] = 0xff;
2406 if (rx_streams >= 2)
2407 band->ht_cap.mcs.rx_mask[1] = 0xff;
2408 if (rx_streams >= 3)
2409 band->ht_cap.mcs.rx_mask[2] = 0xff;
2410 band->ht_cap.mcs.rx_mask[4] = 0x01;
2411 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2413 if (rx_streams != tx_streams) {
2414 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
2415 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
2416 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
2421 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
2423 struct mwl8k_priv *priv = hw->priv;
2428 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
2429 mwl8k_setup_2ghz_band(hw);
2430 if (caps & MWL8K_CAP_MIMO)
2431 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
2434 if (caps & MWL8K_CAP_5GHZ) {
2435 mwl8k_setup_5ghz_band(hw);
2436 if (caps & MWL8K_CAP_MIMO)
2437 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
2443 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
2445 struct mwl8k_priv *priv = hw->priv;
2446 struct mwl8k_cmd_get_hw_spec_sta *cmd;
2450 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2454 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2455 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2457 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2458 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2459 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2460 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2461 for (i = 0; i < mwl8k_tx_queues(priv); i++)
2462 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
2463 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2464 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2466 rc = mwl8k_post_cmd(hw, &cmd->header);
2469 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2470 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2471 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2472 priv->hw_rev = cmd->hw_rev;
2473 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2474 priv->ap_macids_supported = 0x00000000;
2475 priv->sta_macids_supported = 0x00000001;
2483 * CMD_GET_HW_SPEC (AP version).
2485 struct mwl8k_cmd_get_hw_spec_ap {
2486 struct mwl8k_cmd_pkt header;
2488 __u8 host_interface;
2491 __u8 perm_addr[ETH_ALEN];
2502 __le32 fw_api_version;
2504 __le32 num_of_ampdu_queues;
2505 __le32 wcbbase_ampdu[MWL8K_MAX_AMPDU_QUEUES];
2508 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2510 struct mwl8k_priv *priv = hw->priv;
2511 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2515 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2519 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2520 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2522 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2523 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2525 rc = mwl8k_post_cmd(hw, &cmd->header);
2530 api_version = le32_to_cpu(cmd->fw_api_version);
2531 if (priv->device_info->fw_api_ap != api_version) {
2532 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2533 " Expected %d got %d.\n", MWL8K_NAME,
2534 priv->device_info->part_name,
2535 priv->device_info->fw_api_ap,
2540 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2541 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2542 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2543 priv->hw_rev = cmd->hw_rev;
2544 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2545 priv->ap_macids_supported = 0x000000ff;
2546 priv->sta_macids_supported = 0x00000100;
2547 priv->num_ampdu_queues = le32_to_cpu(cmd->num_of_ampdu_queues);
2548 if (priv->num_ampdu_queues > MWL8K_MAX_AMPDU_QUEUES) {
2549 wiphy_warn(hw->wiphy, "fw reported %d ampdu queues"
2550 " but we only support %d.\n",
2551 priv->num_ampdu_queues,
2552 MWL8K_MAX_AMPDU_QUEUES);
2553 priv->num_ampdu_queues = MWL8K_MAX_AMPDU_QUEUES;
2555 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2556 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2558 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2559 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2561 priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2562 priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2563 priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2564 priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2566 for (i = 0; i < priv->num_ampdu_queues; i++)
2567 priv->txq_offset[i + MWL8K_TX_WMM_QUEUES] =
2568 le32_to_cpu(cmd->wcbbase_ampdu[i]) & 0xffff;
2579 struct mwl8k_cmd_set_hw_spec {
2580 struct mwl8k_cmd_pkt header;
2582 __u8 host_interface;
2584 __u8 perm_addr[ETH_ALEN];
2589 __le32 rx_queue_ptr;
2590 __le32 num_tx_queues;
2591 __le32 tx_queue_ptrs[MWL8K_MAX_TX_QUEUES];
2593 __le32 num_tx_desc_per_queue;
2597 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2598 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2599 * the packets that are queued for more than 500ms, will be dropped in the
2600 * hardware. This helps minimizing the issues caused due to head-of-line
2601 * blocking where a slow client can hog the bandwidth and affect traffic to a
2604 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2605 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2606 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2607 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2608 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2610 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2612 struct mwl8k_priv *priv = hw->priv;
2613 struct mwl8k_cmd_set_hw_spec *cmd;
2617 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2621 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2622 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2624 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2625 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2626 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2629 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2630 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2631 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2632 * priority is interpreted the right way in firmware.
2634 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
2635 int j = mwl8k_tx_queues(priv) - 1 - i;
2636 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2639 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2640 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2641 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON |
2642 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY |
2643 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR);
2644 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2645 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2647 rc = mwl8k_post_cmd(hw, &cmd->header);
2654 * CMD_MAC_MULTICAST_ADR.
2656 struct mwl8k_cmd_mac_multicast_adr {
2657 struct mwl8k_cmd_pkt header;
2660 __u8 addr[0][ETH_ALEN];
2663 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2664 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2665 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2666 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2668 static struct mwl8k_cmd_pkt *
2669 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2670 struct netdev_hw_addr_list *mc_list)
2672 struct mwl8k_priv *priv = hw->priv;
2673 struct mwl8k_cmd_mac_multicast_adr *cmd;
2678 mc_count = netdev_hw_addr_list_count(mc_list);
2680 if (allmulti || mc_count > priv->num_mcaddrs) {
2685 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2687 cmd = kzalloc(size, GFP_ATOMIC);
2691 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2692 cmd->header.length = cpu_to_le16(size);
2693 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2694 MWL8K_ENABLE_RX_BROADCAST);
2697 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2698 } else if (mc_count) {
2699 struct netdev_hw_addr *ha;
2702 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2703 cmd->numaddr = cpu_to_le16(mc_count);
2704 netdev_hw_addr_list_for_each(ha, mc_list) {
2705 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2709 return &cmd->header;
2715 struct mwl8k_cmd_get_stat {
2716 struct mwl8k_cmd_pkt header;
2720 #define MWL8K_STAT_ACK_FAILURE 9
2721 #define MWL8K_STAT_RTS_FAILURE 12
2722 #define MWL8K_STAT_FCS_ERROR 24
2723 #define MWL8K_STAT_RTS_SUCCESS 11
2725 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2726 struct ieee80211_low_level_stats *stats)
2728 struct mwl8k_cmd_get_stat *cmd;
2731 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2735 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2736 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2738 rc = mwl8k_post_cmd(hw, &cmd->header);
2740 stats->dot11ACKFailureCount =
2741 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2742 stats->dot11RTSFailureCount =
2743 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2744 stats->dot11FCSErrorCount =
2745 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2746 stats->dot11RTSSuccessCount =
2747 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2755 * CMD_RADIO_CONTROL.
2757 struct mwl8k_cmd_radio_control {
2758 struct mwl8k_cmd_pkt header;
2765 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2767 struct mwl8k_priv *priv = hw->priv;
2768 struct mwl8k_cmd_radio_control *cmd;
2771 if (enable == priv->radio_on && !force)
2774 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2778 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2779 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2780 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2781 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2782 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2784 rc = mwl8k_post_cmd(hw, &cmd->header);
2788 priv->radio_on = enable;
2793 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2795 return mwl8k_cmd_radio_control(hw, 0, 0);
2798 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2800 return mwl8k_cmd_radio_control(hw, 1, 0);
2804 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2806 struct mwl8k_priv *priv = hw->priv;
2808 priv->radio_short_preamble = short_preamble;
2810 return mwl8k_cmd_radio_control(hw, 1, 1);
2816 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2818 struct mwl8k_cmd_rf_tx_power {
2819 struct mwl8k_cmd_pkt header;
2821 __le16 support_level;
2822 __le16 current_level;
2824 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2827 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2829 struct mwl8k_cmd_rf_tx_power *cmd;
2832 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2836 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2837 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2838 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2839 cmd->support_level = cpu_to_le16(dBm);
2841 rc = mwl8k_post_cmd(hw, &cmd->header);
2850 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2852 struct mwl8k_cmd_tx_power {
2853 struct mwl8k_cmd_pkt header;
2859 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2862 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2863 struct ieee80211_conf *conf,
2866 struct ieee80211_channel *channel = conf->chandef.chan;
2867 enum nl80211_channel_type channel_type =
2868 cfg80211_get_chandef_type(&conf->chandef);
2869 struct mwl8k_cmd_tx_power *cmd;
2873 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2877 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2878 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2879 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2881 if (channel->band == IEEE80211_BAND_2GHZ)
2882 cmd->band = cpu_to_le16(0x1);
2883 else if (channel->band == IEEE80211_BAND_5GHZ)
2884 cmd->band = cpu_to_le16(0x4);
2886 cmd->channel = cpu_to_le16(channel->hw_value);
2888 if (channel_type == NL80211_CHAN_NO_HT ||
2889 channel_type == NL80211_CHAN_HT20) {
2890 cmd->bw = cpu_to_le16(0x2);
2892 cmd->bw = cpu_to_le16(0x4);
2893 if (channel_type == NL80211_CHAN_HT40MINUS)
2894 cmd->sub_ch = cpu_to_le16(0x3);
2895 else if (channel_type == NL80211_CHAN_HT40PLUS)
2896 cmd->sub_ch = cpu_to_le16(0x1);
2899 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2900 cmd->power_level_list[i] = cpu_to_le16(pwr);
2902 rc = mwl8k_post_cmd(hw, &cmd->header);
2911 struct mwl8k_cmd_rf_antenna {
2912 struct mwl8k_cmd_pkt header;
2917 #define MWL8K_RF_ANTENNA_RX 1
2918 #define MWL8K_RF_ANTENNA_TX 2
2921 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2923 struct mwl8k_cmd_rf_antenna *cmd;
2926 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2930 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2931 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2932 cmd->antenna = cpu_to_le16(antenna);
2933 cmd->mode = cpu_to_le16(mask);
2935 rc = mwl8k_post_cmd(hw, &cmd->header);
2944 struct mwl8k_cmd_set_beacon {
2945 struct mwl8k_cmd_pkt header;
2950 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2951 struct ieee80211_vif *vif, u8 *beacon, int len)
2953 struct mwl8k_cmd_set_beacon *cmd;
2956 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2960 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2961 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2962 cmd->beacon_len = cpu_to_le16(len);
2963 memcpy(cmd->beacon, beacon, len);
2965 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2974 struct mwl8k_cmd_set_pre_scan {
2975 struct mwl8k_cmd_pkt header;
2978 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2980 struct mwl8k_cmd_set_pre_scan *cmd;
2983 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2987 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2988 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2990 rc = mwl8k_post_cmd(hw, &cmd->header);
2997 * CMD_BBP_REG_ACCESS.
2999 struct mwl8k_cmd_bbp_reg_access {
3000 struct mwl8k_cmd_pkt header;
3008 mwl8k_cmd_bbp_reg_access(struct ieee80211_hw *hw,
3013 struct mwl8k_cmd_bbp_reg_access *cmd;
3016 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3020 cmd->header.code = cpu_to_le16(MWL8K_CMD_BBP_REG_ACCESS);
3021 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3022 cmd->action = cpu_to_le16(action);
3023 cmd->offset = cpu_to_le16(offset);
3025 rc = mwl8k_post_cmd(hw, &cmd->header);
3028 *value = cmd->value;
3038 * CMD_SET_POST_SCAN.
3040 struct mwl8k_cmd_set_post_scan {
3041 struct mwl8k_cmd_pkt header;
3043 __u8 bssid[ETH_ALEN];
3047 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
3049 struct mwl8k_cmd_set_post_scan *cmd;
3052 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3056 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
3057 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3059 memcpy(cmd->bssid, mac, ETH_ALEN);
3061 rc = mwl8k_post_cmd(hw, &cmd->header);
3067 static int freq_to_idx(struct mwl8k_priv *priv, int freq)
3069 struct ieee80211_supported_band *sband;
3070 int band, ch, idx = 0;
3072 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
3073 sband = priv->hw->wiphy->bands[band];
3077 for (ch = 0; ch < sband->n_channels; ch++, idx++)
3078 if (sband->channels[ch].center_freq == freq)
3086 static void mwl8k_update_survey(struct mwl8k_priv *priv,
3087 struct ieee80211_channel *channel)
3089 u32 cca_cnt, rx_rdy;
3091 struct survey_info *survey;
3093 idx = freq_to_idx(priv, priv->acs_chan->center_freq);
3094 if (idx >= MWL8K_NUM_CHANS) {
3095 wiphy_err(priv->hw->wiphy, "Failed to update survey\n");
3099 survey = &priv->survey[idx];
3101 cca_cnt = ioread32(priv->regs + NOK_CCA_CNT_REG);
3102 cca_cnt /= 1000; /* uSecs to mSecs */
3103 survey->channel_time_busy = (u64) cca_cnt;
3105 rx_rdy = ioread32(priv->regs + BBU_RXRDY_CNT_REG);
3106 rx_rdy /= 1000; /* uSecs to mSecs */
3107 survey->channel_time_rx = (u64) rx_rdy;
3109 priv->channel_time = jiffies - priv->channel_time;
3110 survey->channel_time = jiffies_to_msecs(priv->channel_time);
3112 survey->channel = channel;
3114 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &nf);
3116 /* Make sure sign is negative else ACS at hostapd fails */
3117 survey->noise = nf * -1;
3119 survey->filled = SURVEY_INFO_NOISE_DBM |
3120 SURVEY_INFO_CHANNEL_TIME |
3121 SURVEY_INFO_CHANNEL_TIME_BUSY |
3122 SURVEY_INFO_CHANNEL_TIME_RX;
3126 * CMD_SET_RF_CHANNEL.
3128 struct mwl8k_cmd_set_rf_channel {
3129 struct mwl8k_cmd_pkt header;
3131 __u8 current_channel;
3132 __le32 channel_flags;
3135 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
3136 struct ieee80211_conf *conf)
3138 struct ieee80211_channel *channel = conf->chandef.chan;
3139 enum nl80211_channel_type channel_type =
3140 cfg80211_get_chandef_type(&conf->chandef);
3141 struct mwl8k_cmd_set_rf_channel *cmd;
3142 struct mwl8k_priv *priv = hw->priv;
3145 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3149 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
3150 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3151 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3152 cmd->current_channel = channel->hw_value;
3154 if (channel->band == IEEE80211_BAND_2GHZ)
3155 cmd->channel_flags |= cpu_to_le32(0x00000001);
3156 else if (channel->band == IEEE80211_BAND_5GHZ)
3157 cmd->channel_flags |= cpu_to_le32(0x00000004);
3159 if (!priv->sw_scan_start) {
3160 if (channel_type == NL80211_CHAN_NO_HT ||
3161 channel_type == NL80211_CHAN_HT20)
3162 cmd->channel_flags |= cpu_to_le32(0x00000080);
3163 else if (channel_type == NL80211_CHAN_HT40MINUS)
3164 cmd->channel_flags |= cpu_to_le32(0x000001900);
3165 else if (channel_type == NL80211_CHAN_HT40PLUS)
3166 cmd->channel_flags |= cpu_to_le32(0x000000900);
3168 cmd->channel_flags |= cpu_to_le32(0x00000080);
3171 if (priv->sw_scan_start) {
3172 /* Store current channel stats
3173 * before switching to newer one.
3174 * This will be processed only for AP fw.
3176 if (priv->channel_time != 0)
3177 mwl8k_update_survey(priv, priv->acs_chan);
3179 priv->channel_time = jiffies;
3180 priv->acs_chan = channel;
3183 rc = mwl8k_post_cmd(hw, &cmd->header);
3192 #define MWL8K_FRAME_PROT_DISABLED 0x00
3193 #define MWL8K_FRAME_PROT_11G 0x07
3194 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3195 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3197 struct mwl8k_cmd_update_set_aid {
3198 struct mwl8k_cmd_pkt header;
3201 /* AP's MAC address (BSSID) */
3202 __u8 bssid[ETH_ALEN];
3203 __le16 protection_mode;
3204 __u8 supp_rates[14];
3207 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
3213 * Clear nonstandard rate 4.
3217 for (i = 0, j = 0; i < 13; i++) {
3218 if (mask & (1 << i))
3219 rates[j++] = mwl8k_rates_24[i].hw_value;
3224 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
3225 struct ieee80211_vif *vif, u32 legacy_rate_mask)
3227 struct mwl8k_cmd_update_set_aid *cmd;
3231 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3235 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
3236 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3237 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
3238 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
3240 if (vif->bss_conf.use_cts_prot) {
3241 prot_mode = MWL8K_FRAME_PROT_11G;
3243 switch (vif->bss_conf.ht_operation_mode &
3244 IEEE80211_HT_OP_MODE_PROTECTION) {
3245 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
3246 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
3248 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
3249 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
3252 prot_mode = MWL8K_FRAME_PROT_DISABLED;
3256 cmd->protection_mode = cpu_to_le16(prot_mode);
3258 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
3260 rc = mwl8k_post_cmd(hw, &cmd->header);
3269 struct mwl8k_cmd_set_rate {
3270 struct mwl8k_cmd_pkt header;
3271 __u8 legacy_rates[14];
3273 /* Bitmap for supported MCS codes. */
3279 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3280 u32 legacy_rate_mask, u8 *mcs_rates)
3282 struct mwl8k_cmd_set_rate *cmd;
3285 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3289 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
3290 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3291 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
3292 memcpy(cmd->mcs_set, mcs_rates, 16);
3294 rc = mwl8k_post_cmd(hw, &cmd->header);
3301 * CMD_FINALIZE_JOIN.
3303 #define MWL8K_FJ_BEACON_MAXLEN 128
3305 struct mwl8k_cmd_finalize_join {
3306 struct mwl8k_cmd_pkt header;
3307 __le32 sleep_interval; /* Number of beacon periods to sleep */
3308 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
3311 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
3312 int framelen, int dtim)
3314 struct mwl8k_cmd_finalize_join *cmd;
3315 struct ieee80211_mgmt *payload = frame;
3319 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3323 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
3324 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3325 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
3327 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
3328 if (payload_len < 0)
3330 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
3331 payload_len = MWL8K_FJ_BEACON_MAXLEN;
3333 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
3335 rc = mwl8k_post_cmd(hw, &cmd->header);
3342 * CMD_SET_RTS_THRESHOLD.
3344 struct mwl8k_cmd_set_rts_threshold {
3345 struct mwl8k_cmd_pkt header;
3351 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
3353 struct mwl8k_cmd_set_rts_threshold *cmd;
3356 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3360 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
3361 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3362 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3363 cmd->threshold = cpu_to_le16(rts_thresh);
3365 rc = mwl8k_post_cmd(hw, &cmd->header);
3374 struct mwl8k_cmd_set_slot {
3375 struct mwl8k_cmd_pkt header;
3380 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
3382 struct mwl8k_cmd_set_slot *cmd;
3385 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3389 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
3390 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3391 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3392 cmd->short_slot = short_slot_time;
3394 rc = mwl8k_post_cmd(hw, &cmd->header);
3401 * CMD_SET_EDCA_PARAMS.
3403 struct mwl8k_cmd_set_edca_params {
3404 struct mwl8k_cmd_pkt header;
3406 /* See MWL8K_SET_EDCA_XXX below */
3409 /* TX opportunity in units of 32 us */
3414 /* Log exponent of max contention period: 0...15 */
3417 /* Log exponent of min contention period: 0...15 */
3420 /* Adaptive interframe spacing in units of 32us */
3423 /* TX queue to configure */
3427 /* Log exponent of max contention period: 0...15 */
3430 /* Log exponent of min contention period: 0...15 */
3433 /* Adaptive interframe spacing in units of 32us */
3436 /* TX queue to configure */
3442 #define MWL8K_SET_EDCA_CW 0x01
3443 #define MWL8K_SET_EDCA_TXOP 0x02
3444 #define MWL8K_SET_EDCA_AIFS 0x04
3446 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3447 MWL8K_SET_EDCA_TXOP | \
3448 MWL8K_SET_EDCA_AIFS)
3451 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
3452 __u16 cw_min, __u16 cw_max,
3453 __u8 aifs, __u16 txop)
3455 struct mwl8k_priv *priv = hw->priv;
3456 struct mwl8k_cmd_set_edca_params *cmd;
3459 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3463 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
3464 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3465 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
3466 cmd->txop = cpu_to_le16(txop);
3468 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
3469 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
3470 cmd->ap.aifs = aifs;
3473 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
3474 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
3475 cmd->sta.aifs = aifs;
3476 cmd->sta.txq = qnum;
3479 rc = mwl8k_post_cmd(hw, &cmd->header);
3488 struct mwl8k_cmd_set_wmm_mode {
3489 struct mwl8k_cmd_pkt header;
3493 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
3495 struct mwl8k_priv *priv = hw->priv;
3496 struct mwl8k_cmd_set_wmm_mode *cmd;
3499 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3503 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
3504 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3505 cmd->action = cpu_to_le16(!!enable);
3507 rc = mwl8k_post_cmd(hw, &cmd->header);
3511 priv->wmm_enabled = enable;
3519 struct mwl8k_cmd_mimo_config {
3520 struct mwl8k_cmd_pkt header;
3522 __u8 rx_antenna_map;
3523 __u8 tx_antenna_map;
3526 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
3528 struct mwl8k_cmd_mimo_config *cmd;
3531 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3535 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
3536 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3537 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
3538 cmd->rx_antenna_map = rx;
3539 cmd->tx_antenna_map = tx;
3541 rc = mwl8k_post_cmd(hw, &cmd->header);
3548 * CMD_USE_FIXED_RATE (STA version).
3550 struct mwl8k_cmd_use_fixed_rate_sta {
3551 struct mwl8k_cmd_pkt header;
3553 __le32 allow_rate_drop;
3557 __le32 enable_retry;
3566 #define MWL8K_USE_AUTO_RATE 0x0002
3567 #define MWL8K_UCAST_RATE 0
3569 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
3571 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
3574 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3578 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3579 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3580 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3581 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
3583 rc = mwl8k_post_cmd(hw, &cmd->header);
3590 * CMD_USE_FIXED_RATE (AP version).
3592 struct mwl8k_cmd_use_fixed_rate_ap {
3593 struct mwl8k_cmd_pkt header;
3595 __le32 allow_rate_drop;
3597 struct mwl8k_rate_entry_ap {
3599 __le32 enable_retry;
3604 u8 multicast_rate_type;
3609 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
3611 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
3614 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3618 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3619 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3620 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3621 cmd->multicast_rate = mcast;
3622 cmd->management_rate = mgmt;
3624 rc = mwl8k_post_cmd(hw, &cmd->header);
3631 * CMD_ENABLE_SNIFFER.
3633 struct mwl8k_cmd_enable_sniffer {
3634 struct mwl8k_cmd_pkt header;
3638 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3640 struct mwl8k_cmd_enable_sniffer *cmd;
3643 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3647 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3648 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3649 cmd->action = cpu_to_le32(!!enable);
3651 rc = mwl8k_post_cmd(hw, &cmd->header);
3657 struct mwl8k_cmd_update_mac_addr {
3658 struct mwl8k_cmd_pkt header;
3662 __u8 mac_addr[ETH_ALEN];
3664 __u8 mac_addr[ETH_ALEN];
3668 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3669 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3670 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3671 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3673 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw *hw,
3674 struct ieee80211_vif *vif, u8 *mac, bool set)
3676 struct mwl8k_priv *priv = hw->priv;
3677 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3678 struct mwl8k_cmd_update_mac_addr *cmd;
3682 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3683 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3684 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3686 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3688 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3690 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3691 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3692 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3693 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3695 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3698 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3703 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3705 cmd->header.code = cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR);
3707 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3709 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3710 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3712 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3715 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3722 * MWL8K_CMD_SET_MAC_ADDR.
3724 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3725 struct ieee80211_vif *vif, u8 *mac)
3727 return mwl8k_cmd_update_mac_addr(hw, vif, mac, true);
3731 * MWL8K_CMD_DEL_MAC_ADDR.
3733 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw *hw,
3734 struct ieee80211_vif *vif, u8 *mac)
3736 return mwl8k_cmd_update_mac_addr(hw, vif, mac, false);
3740 * CMD_SET_RATEADAPT_MODE.
3742 struct mwl8k_cmd_set_rate_adapt_mode {
3743 struct mwl8k_cmd_pkt header;
3748 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3750 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3753 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3757 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3758 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3759 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3760 cmd->mode = cpu_to_le16(mode);
3762 rc = mwl8k_post_cmd(hw, &cmd->header);
3769 * CMD_GET_WATCHDOG_BITMAP.
3771 struct mwl8k_cmd_get_watchdog_bitmap {
3772 struct mwl8k_cmd_pkt header;
3776 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw *hw, u8 *bitmap)
3778 struct mwl8k_cmd_get_watchdog_bitmap *cmd;
3781 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3785 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP);
3786 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3788 rc = mwl8k_post_cmd(hw, &cmd->header);
3790 *bitmap = cmd->bitmap;
3797 #define MWL8K_WMM_QUEUE_NUMBER 3
3799 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
3802 static void mwl8k_watchdog_ba_events(struct work_struct *work)
3805 u8 bitmap = 0, stream_index;
3806 struct mwl8k_ampdu_stream *streams;
3807 struct mwl8k_priv *priv =
3808 container_of(work, struct mwl8k_priv, watchdog_ba_handle);
3809 struct ieee80211_hw *hw = priv->hw;
3815 rc = mwl8k_cmd_get_watchdog_bitmap(priv->hw, &bitmap);
3819 spin_lock(&priv->stream_lock);
3821 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3822 for (i = 0; i < TOTAL_HW_TX_QUEUES; i++) {
3823 if (bitmap & (1 << i)) {
3824 stream_index = (i + MWL8K_WMM_QUEUE_NUMBER) %
3826 streams = &priv->ampdu[stream_index];
3827 if (streams->state == AMPDU_STREAM_ACTIVE) {
3828 ieee80211_stop_tx_ba_session(streams->sta,
3830 spin_unlock(&priv->stream_lock);
3831 mwl8k_destroy_ba(hw, stream_index);
3832 spin_lock(&priv->stream_lock);
3837 spin_unlock(&priv->stream_lock);
3839 atomic_dec(&priv->watchdog_event_pending);
3840 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3841 iowrite32((status | MWL8K_A2H_INT_BA_WATCHDOG),
3842 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3843 mwl8k_fw_unlock(hw);
3851 struct mwl8k_cmd_bss_start {
3852 struct mwl8k_cmd_pkt header;
3856 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3857 struct ieee80211_vif *vif, int enable)
3859 struct mwl8k_cmd_bss_start *cmd;
3860 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3861 struct mwl8k_priv *priv = hw->priv;
3864 if (enable && (priv->running_bsses & (1 << mwl8k_vif->macid)))
3867 if (!enable && !(priv->running_bsses & (1 << mwl8k_vif->macid)))
3870 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3874 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3875 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3876 cmd->enable = cpu_to_le32(enable);
3878 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3883 priv->running_bsses |= (1 << mwl8k_vif->macid);
3885 priv->running_bsses &= ~(1 << mwl8k_vif->macid);
3890 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable, u32 bitmap)
3892 struct mwl8k_priv *priv = hw->priv;
3893 struct mwl8k_vif *mwl8k_vif, *tmp_vif;
3894 struct ieee80211_vif *vif;
3896 list_for_each_entry_safe(mwl8k_vif, tmp_vif, &priv->vif_list, list) {
3897 vif = mwl8k_vif->vif;
3899 if (!(bitmap & (1 << mwl8k_vif->macid)))
3902 if (vif->type == NL80211_IFTYPE_AP)
3903 mwl8k_cmd_bss_start(hw, vif, enable);
3911 * UPSTREAM is tx direction
3913 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3914 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3916 enum ba_stream_action_type {
3925 struct mwl8k_create_ba_stream {
3930 u8 peer_mac_addr[6];
3936 u8 reset_seq_no_flag;
3938 u8 sta_src_mac_addr[6];
3941 struct mwl8k_destroy_ba_stream {
3946 struct mwl8k_cmd_bastream {
3947 struct mwl8k_cmd_pkt header;
3950 struct mwl8k_create_ba_stream create_params;
3951 struct mwl8k_destroy_ba_stream destroy_params;
3956 mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3957 struct ieee80211_vif *vif)
3959 struct mwl8k_cmd_bastream *cmd;
3962 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3966 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3967 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3969 cmd->action = cpu_to_le32(MWL8K_BA_CHECK);
3971 cmd->create_params.queue_id = stream->idx;
3972 memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr,
3974 cmd->create_params.tid = stream->tid;
3976 cmd->create_params.flags =
3977 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) |
3978 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM);
3980 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3988 mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3989 u8 buf_size, struct ieee80211_vif *vif)
3991 struct mwl8k_cmd_bastream *cmd;
3994 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3999 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4000 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4002 cmd->action = cpu_to_le32(MWL8K_BA_CREATE);
4004 cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size);
4005 cmd->create_params.window_size = cpu_to_le32((u32)buf_size);
4006 cmd->create_params.queue_id = stream->idx;
4008 memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN);
4009 cmd->create_params.tid = stream->tid;
4010 cmd->create_params.curr_seq_no = cpu_to_le16(0);
4011 cmd->create_params.reset_seq_no_flag = 1;
4013 cmd->create_params.param_info =
4014 (stream->sta->ht_cap.ampdu_factor &
4015 IEEE80211_HT_AMPDU_PARM_FACTOR) |
4016 ((stream->sta->ht_cap.ampdu_density << 2) &
4017 IEEE80211_HT_AMPDU_PARM_DENSITY);
4019 cmd->create_params.flags =
4020 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE |
4021 BASTREAM_FLAG_DIRECTION_UPSTREAM);
4023 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4025 wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n",
4026 stream->sta->addr, stream->tid);
4032 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
4035 struct mwl8k_cmd_bastream *cmd;
4037 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4041 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4042 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4043 cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
4045 cmd->destroy_params.ba_context = cpu_to_le32(idx);
4046 mwl8k_post_cmd(hw, &cmd->header);
4048 wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", idx);
4056 struct mwl8k_cmd_set_new_stn {
4057 struct mwl8k_cmd_pkt header;
4063 __le32 legacy_rates;
4066 __le16 ht_capabilities_info;
4067 __u8 mac_ht_param_info;
4069 __u8 control_channel;
4078 #define MWL8K_STA_ACTION_ADD 0
4079 #define MWL8K_STA_ACTION_REMOVE 2
4081 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
4082 struct ieee80211_vif *vif,
4083 struct ieee80211_sta *sta)
4085 struct mwl8k_cmd_set_new_stn *cmd;
4089 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4093 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4094 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4095 cmd->aid = cpu_to_le16(sta->aid);
4096 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
4097 cmd->stn_id = cpu_to_le16(sta->aid);
4098 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
4099 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
4100 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4102 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4103 cmd->legacy_rates = cpu_to_le32(rates);
4104 if (sta->ht_cap.ht_supported) {
4105 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
4106 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
4107 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
4108 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
4109 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
4110 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
4111 ((sta->ht_cap.ampdu_density & 7) << 2);
4112 cmd->is_qos_sta = 1;
4115 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4121 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
4122 struct ieee80211_vif *vif)
4124 struct mwl8k_cmd_set_new_stn *cmd;
4127 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4131 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4132 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4133 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
4135 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4141 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
4142 struct ieee80211_vif *vif, u8 *addr)
4144 struct mwl8k_cmd_set_new_stn *cmd;
4145 struct mwl8k_priv *priv = hw->priv;
4149 spin_lock(&priv->stream_lock);
4150 /* Destroy any active ampdu streams for this sta */
4151 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
4152 struct mwl8k_ampdu_stream *s;
4153 s = &priv->ampdu[i];
4154 if (s->state != AMPDU_NO_STREAM) {
4155 if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
4156 if (s->state == AMPDU_STREAM_ACTIVE) {
4158 spin_unlock(&priv->stream_lock);
4159 mwl8k_destroy_ba(hw, idx);
4160 spin_lock(&priv->stream_lock);
4161 } else if (s->state == AMPDU_STREAM_NEW) {
4162 mwl8k_remove_stream(hw, s);
4168 spin_unlock(&priv->stream_lock);
4170 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4174 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4175 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4176 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4177 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
4179 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4186 * CMD_UPDATE_ENCRYPTION.
4189 #define MAX_ENCR_KEY_LENGTH 16
4190 #define MIC_KEY_LENGTH 8
4192 struct mwl8k_cmd_update_encryption {
4193 struct mwl8k_cmd_pkt header;
4202 struct mwl8k_cmd_set_key {
4203 struct mwl8k_cmd_pkt header;
4212 __u8 key_material[MAX_ENCR_KEY_LENGTH];
4213 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
4214 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
4215 __le16 tkip_rsc_low;
4216 __le32 tkip_rsc_high;
4217 __le16 tkip_tsc_low;
4218 __le32 tkip_tsc_high;
4225 MWL8K_ENCR_REMOVE_KEY,
4226 MWL8K_ENCR_SET_GROUP_KEY,
4229 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4230 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4231 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4232 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4233 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4241 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4242 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4243 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4244 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4245 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4247 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
4248 struct ieee80211_vif *vif,
4252 struct mwl8k_cmd_update_encryption *cmd;
4255 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4259 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4260 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4261 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
4262 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4263 cmd->encr_type = encr_type;
4265 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4271 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
4273 struct ieee80211_key_conf *key)
4275 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4276 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4277 cmd->length = cpu_to_le16(sizeof(*cmd) -
4278 offsetof(struct mwl8k_cmd_set_key, length));
4279 cmd->key_id = cpu_to_le32(key->keyidx);
4280 cmd->key_len = cpu_to_le16(key->keylen);
4281 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4283 switch (key->cipher) {
4284 case WLAN_CIPHER_SUITE_WEP40:
4285 case WLAN_CIPHER_SUITE_WEP104:
4286 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
4287 if (key->keyidx == 0)
4288 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
4291 case WLAN_CIPHER_SUITE_TKIP:
4292 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
4293 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4294 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4295 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4296 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4297 | MWL8K_KEY_FLAG_TSC_VALID);
4299 case WLAN_CIPHER_SUITE_CCMP:
4300 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
4301 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4302 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4303 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4312 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
4313 struct ieee80211_vif *vif,
4315 struct ieee80211_key_conf *key)
4317 struct mwl8k_cmd_set_key *cmd;
4322 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4324 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4328 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4334 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4335 action = MWL8K_ENCR_SET_KEY;
4337 action = MWL8K_ENCR_SET_GROUP_KEY;
4339 switch (key->cipher) {
4340 case WLAN_CIPHER_SUITE_WEP40:
4341 case WLAN_CIPHER_SUITE_WEP104:
4342 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
4343 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
4344 sizeof(*key) + key->keylen);
4345 mwl8k_vif->wep_key_conf[idx].enabled = 1;
4348 keymlen = key->keylen;
4349 action = MWL8K_ENCR_SET_KEY;
4351 case WLAN_CIPHER_SUITE_TKIP:
4352 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
4354 case WLAN_CIPHER_SUITE_CCMP:
4355 keymlen = key->keylen;
4362 memcpy(cmd->key_material, key->key, keymlen);
4363 cmd->action = cpu_to_le32(action);
4365 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4372 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
4373 struct ieee80211_vif *vif,
4375 struct ieee80211_key_conf *key)
4377 struct mwl8k_cmd_set_key *cmd;
4379 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4381 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4385 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4389 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4390 key->cipher == WLAN_CIPHER_SUITE_WEP104)
4391 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
4393 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
4395 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4402 static int mwl8k_set_key(struct ieee80211_hw *hw,
4403 enum set_key_cmd cmd_param,
4404 struct ieee80211_vif *vif,
4405 struct ieee80211_sta *sta,
4406 struct ieee80211_key_conf *key)
4411 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4412 struct mwl8k_priv *priv = hw->priv;
4414 if (vif->type == NL80211_IFTYPE_STATION && !priv->ap_fw)
4422 if (cmd_param == SET_KEY) {
4423 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
4427 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
4428 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
4429 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
4431 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
4433 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
4438 mwl8k_vif->is_hw_crypto_enabled = true;
4441 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
4453 struct ewc_ht_info {
4459 struct peer_capability_info {
4460 /* Peer type - AP vs. STA. */
4463 /* Basic 802.11 capabilities from assoc resp. */
4466 /* Set if peer supports 802.11n high throughput (HT). */
4469 /* Valid if HT is supported. */
4471 __u8 extended_ht_caps;
4472 struct ewc_ht_info ewc_info;
4474 /* Legacy rate table. Intersection of our rates and peer rates. */
4475 __u8 legacy_rates[12];
4477 /* HT rate table. Intersection of our rates and peer rates. */
4481 /* If set, interoperability mode, no proprietary extensions. */
4485 __le16 amsdu_enabled;
4488 struct mwl8k_cmd_update_stadb {
4489 struct mwl8k_cmd_pkt header;
4491 /* See STADB_ACTION_TYPE */
4494 /* Peer MAC address */
4495 __u8 peer_addr[ETH_ALEN];
4499 /* Peer info - valid during add/update. */
4500 struct peer_capability_info peer_info;
4503 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4504 #define MWL8K_STA_DB_DEL_ENTRY 2
4506 /* Peer Entry flags - used to define the type of the peer node */
4507 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4509 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
4510 struct ieee80211_vif *vif,
4511 struct ieee80211_sta *sta)
4513 struct mwl8k_cmd_update_stadb *cmd;
4514 struct peer_capability_info *p;
4518 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4522 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4523 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4524 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
4525 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
4527 p = &cmd->peer_info;
4528 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
4529 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
4530 p->ht_support = sta->ht_cap.ht_supported;
4531 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
4532 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
4533 ((sta->ht_cap.ampdu_density & 7) << 2);
4534 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
4535 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4537 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4538 legacy_rate_mask_to_array(p->legacy_rates, rates);
4539 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
4541 p->amsdu_enabled = 0;
4543 rc = mwl8k_post_cmd(hw, &cmd->header);
4551 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
4552 struct ieee80211_vif *vif, u8 *addr)
4554 struct mwl8k_cmd_update_stadb *cmd;
4557 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4561 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4562 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4563 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
4564 memcpy(cmd->peer_addr, addr, ETH_ALEN);
4566 rc = mwl8k_post_cmd(hw, &cmd->header);
4574 * Interrupt handling.
4576 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
4578 struct ieee80211_hw *hw = dev_id;
4579 struct mwl8k_priv *priv = hw->priv;
4582 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4586 if (status & MWL8K_A2H_INT_TX_DONE) {
4587 status &= ~MWL8K_A2H_INT_TX_DONE;
4588 tasklet_schedule(&priv->poll_tx_task);
4591 if (status & MWL8K_A2H_INT_RX_READY) {
4592 status &= ~MWL8K_A2H_INT_RX_READY;
4593 tasklet_schedule(&priv->poll_rx_task);
4596 if (status & MWL8K_A2H_INT_BA_WATCHDOG) {
4597 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG,
4598 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4600 atomic_inc(&priv->watchdog_event_pending);
4601 status &= ~MWL8K_A2H_INT_BA_WATCHDOG;
4602 ieee80211_queue_work(hw, &priv->watchdog_ba_handle);
4606 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4608 if (status & MWL8K_A2H_INT_OPC_DONE) {
4609 if (priv->hostcmd_wait != NULL)
4610 complete(priv->hostcmd_wait);
4613 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
4614 if (!mutex_is_locked(&priv->fw_mutex) &&
4615 priv->radio_on && priv->pending_tx_pkts)
4616 mwl8k_tx_start(priv);
4622 static void mwl8k_tx_poll(unsigned long data)
4624 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4625 struct mwl8k_priv *priv = hw->priv;
4631 spin_lock_bh(&priv->tx_lock);
4633 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4634 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
4636 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
4637 complete(priv->tx_wait);
4638 priv->tx_wait = NULL;
4641 spin_unlock_bh(&priv->tx_lock);
4644 writel(~MWL8K_A2H_INT_TX_DONE,
4645 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4647 tasklet_schedule(&priv->poll_tx_task);
4651 static void mwl8k_rx_poll(unsigned long data)
4653 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4654 struct mwl8k_priv *priv = hw->priv;
4658 limit -= rxq_process(hw, 0, limit);
4659 limit -= rxq_refill(hw, 0, limit);
4662 writel(~MWL8K_A2H_INT_RX_READY,
4663 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4665 tasklet_schedule(&priv->poll_rx_task);
4671 * Core driver operations.
4673 static void mwl8k_tx(struct ieee80211_hw *hw,
4674 struct ieee80211_tx_control *control,
4675 struct sk_buff *skb)
4677 struct mwl8k_priv *priv = hw->priv;
4678 int index = skb_get_queue_mapping(skb);
4680 if (!priv->radio_on) {
4681 wiphy_debug(hw->wiphy,
4682 "dropped TX frame since radio disabled\n");
4687 mwl8k_txq_xmit(hw, index, control->sta, skb);
4690 static int mwl8k_start(struct ieee80211_hw *hw)
4692 struct mwl8k_priv *priv = hw->priv;
4695 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4696 IRQF_SHARED, MWL8K_NAME, hw);
4699 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4702 priv->irq = priv->pdev->irq;
4704 /* Enable TX reclaim and RX tasklets. */
4705 tasklet_enable(&priv->poll_tx_task);
4706 tasklet_enable(&priv->poll_rx_task);
4708 /* Enable interrupts */
4709 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4710 iowrite32(MWL8K_A2H_EVENTS,
4711 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4713 rc = mwl8k_fw_lock(hw);
4715 rc = mwl8k_cmd_radio_enable(hw);
4719 rc = mwl8k_cmd_enable_sniffer(hw, 0);
4722 rc = mwl8k_cmd_set_pre_scan(hw);
4725 rc = mwl8k_cmd_set_post_scan(hw,
4726 "\x00\x00\x00\x00\x00\x00");
4730 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
4733 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
4735 mwl8k_fw_unlock(hw);
4739 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4740 free_irq(priv->pdev->irq, hw);
4742 tasklet_disable(&priv->poll_tx_task);
4743 tasklet_disable(&priv->poll_rx_task);
4745 ieee80211_wake_queues(hw);
4751 static void mwl8k_stop(struct ieee80211_hw *hw)
4753 struct mwl8k_priv *priv = hw->priv;
4756 if (!priv->hw_restart_in_progress)
4757 mwl8k_cmd_radio_disable(hw);
4759 ieee80211_stop_queues(hw);
4761 /* Disable interrupts */
4762 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4763 if (priv->irq != -1) {
4764 free_irq(priv->pdev->irq, hw);
4768 /* Stop finalize join worker */
4769 cancel_work_sync(&priv->finalize_join_worker);
4770 cancel_work_sync(&priv->watchdog_ba_handle);
4771 if (priv->beacon_skb != NULL)
4772 dev_kfree_skb(priv->beacon_skb);
4774 /* Stop TX reclaim and RX tasklets. */
4775 tasklet_disable(&priv->poll_tx_task);
4776 tasklet_disable(&priv->poll_rx_task);
4778 /* Return all skbs to mac80211 */
4779 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4780 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4783 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
4785 static int mwl8k_add_interface(struct ieee80211_hw *hw,
4786 struct ieee80211_vif *vif)
4788 struct mwl8k_priv *priv = hw->priv;
4789 struct mwl8k_vif *mwl8k_vif;
4790 u32 macids_supported;
4792 struct mwl8k_device_info *di;
4795 * Reject interface creation if sniffer mode is active, as
4796 * STA operation is mutually exclusive with hardware sniffer
4797 * mode. (Sniffer mode is only used on STA firmware.)
4799 if (priv->sniffer_enabled) {
4800 wiphy_info(hw->wiphy,
4801 "unable to create STA interface because sniffer mode is enabled\n");
4805 di = priv->device_info;
4806 switch (vif->type) {
4807 case NL80211_IFTYPE_AP:
4808 if (!priv->ap_fw && di->fw_image_ap) {
4809 /* we must load the ap fw to meet this request */
4810 if (!list_empty(&priv->vif_list))
4812 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4816 macids_supported = priv->ap_macids_supported;
4818 case NL80211_IFTYPE_STATION:
4819 if (priv->ap_fw && di->fw_image_sta) {
4820 if (!list_empty(&priv->vif_list)) {
4821 wiphy_warn(hw->wiphy, "AP interface is running.\n"
4822 "Adding STA interface for WDS");
4824 /* we must load the sta fw to
4825 * meet this request.
4827 rc = mwl8k_reload_firmware(hw,
4833 macids_supported = priv->sta_macids_supported;
4839 macid = ffs(macids_supported & ~priv->macids_used);
4843 /* Setup driver private area. */
4844 mwl8k_vif = MWL8K_VIF(vif);
4845 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
4846 mwl8k_vif->vif = vif;
4847 mwl8k_vif->macid = macid;
4848 mwl8k_vif->seqno = 0;
4849 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
4850 mwl8k_vif->is_hw_crypto_enabled = false;
4852 /* Set the mac address. */
4853 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
4855 if (vif->type == NL80211_IFTYPE_AP)
4856 mwl8k_cmd_set_new_stn_add_self(hw, vif);
4858 priv->macids_used |= 1 << mwl8k_vif->macid;
4859 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
4864 static void mwl8k_remove_vif(struct mwl8k_priv *priv, struct mwl8k_vif *vif)
4866 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4867 if (!priv->macids_used)
4870 priv->macids_used &= ~(1 << vif->macid);
4871 list_del(&vif->list);
4874 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
4875 struct ieee80211_vif *vif)
4877 struct mwl8k_priv *priv = hw->priv;
4878 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4880 if (vif->type == NL80211_IFTYPE_AP)
4881 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
4883 mwl8k_cmd_del_mac_addr(hw, vif, vif->addr);
4885 mwl8k_remove_vif(priv, mwl8k_vif);
4888 static void mwl8k_hw_restart_work(struct work_struct *work)
4890 struct mwl8k_priv *priv =
4891 container_of(work, struct mwl8k_priv, fw_reload);
4892 struct ieee80211_hw *hw = priv->hw;
4893 struct mwl8k_device_info *di;
4896 /* If some command is waiting for a response, clear it */
4897 if (priv->hostcmd_wait != NULL) {
4898 complete(priv->hostcmd_wait);
4899 priv->hostcmd_wait = NULL;
4902 priv->hw_restart_owner = current;
4903 di = priv->device_info;
4907 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4909 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
4914 priv->hw_restart_owner = NULL;
4915 priv->hw_restart_in_progress = false;
4918 * This unlock will wake up the queues and
4919 * also opens the command path for other
4922 mwl8k_fw_unlock(hw);
4924 ieee80211_restart_hw(hw);
4926 wiphy_err(hw->wiphy, "Firmware restarted successfully\n");
4930 mwl8k_fw_unlock(hw);
4932 wiphy_err(hw->wiphy, "Firmware restart failed\n");
4935 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
4937 struct ieee80211_conf *conf = &hw->conf;
4938 struct mwl8k_priv *priv = hw->priv;
4941 rc = mwl8k_fw_lock(hw);
4945 if (conf->flags & IEEE80211_CONF_IDLE)
4946 rc = mwl8k_cmd_radio_disable(hw);
4948 rc = mwl8k_cmd_radio_enable(hw);
4952 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
4953 rc = mwl8k_cmd_set_rf_channel(hw, conf);
4958 if (conf->power_level > 18)
4959 conf->power_level = 18;
4963 if (conf->flags & IEEE80211_CONF_CHANGE_POWER) {
4964 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
4971 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
4974 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
4978 mwl8k_fw_unlock(hw);
4984 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4985 struct ieee80211_bss_conf *info, u32 changed)
4987 struct mwl8k_priv *priv = hw->priv;
4988 u32 ap_legacy_rates = 0;
4989 u8 ap_mcs_rates[16];
4992 if (mwl8k_fw_lock(hw))
4996 * No need to capture a beacon if we're no longer associated.
4998 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
4999 priv->capture_beacon = false;
5002 * Get the AP's legacy and MCS rates.
5004 if (vif->bss_conf.assoc) {
5005 struct ieee80211_sta *ap;
5009 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
5015 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ) {
5016 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
5019 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
5021 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
5026 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
5028 rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
5032 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
5036 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
5041 /* Use AP firmware specific rate command.
5043 idx = ffs(vif->bss_conf.basic_rates);
5047 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
5048 rate = mwl8k_rates_24[idx].hw_value;
5050 rate = mwl8k_rates_50[idx].hw_value;
5052 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_PROMISC_IN_BSS | 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 enum ieee80211_ampdu_mlme_action action,
5426 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
5431 struct mwl8k_priv *priv = hw->priv;
5432 struct mwl8k_ampdu_stream *stream;
5433 u8 *addr = sta->addr, idx;
5434 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
5436 if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
5439 spin_lock(&priv->stream_lock);
5440 stream = mwl8k_lookup_stream(hw, addr, tid);
5443 case IEEE80211_AMPDU_RX_START:
5444 case IEEE80211_AMPDU_RX_STOP:
5446 case IEEE80211_AMPDU_TX_START:
5447 /* By the time we get here the hw queues may contain outgoing
5448 * packets for this RA/TID that are not part of this BA
5449 * session. The hw will assign sequence numbers to these
5450 * packets as they go out. So if we query the hw for its next
5451 * sequence number and use that for the SSN here, it may end up
5452 * being wrong, which will lead to sequence number mismatch at
5453 * the recipient. To avoid this, we reset the sequence number
5454 * to O for the first MPDU in this BA stream.
5457 if (stream == NULL) {
5458 /* This means that somebody outside this driver called
5459 * ieee80211_start_tx_ba_session. This is unexpected
5460 * because we do our own rate control. Just warn and
5463 wiphy_warn(hw->wiphy, "Unexpected call to %s. "
5464 "Proceeding anyway.\n", __func__);
5465 stream = mwl8k_add_stream(hw, sta, tid);
5467 if (stream == NULL) {
5468 wiphy_debug(hw->wiphy, "no free AMPDU streams\n");
5472 stream->state = AMPDU_STREAM_IN_PROGRESS;
5474 /* Release the lock before we do the time consuming stuff */
5475 spin_unlock(&priv->stream_lock);
5476 for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) {
5478 /* Check if link is still valid */
5479 if (!sta_info->is_ampdu_allowed) {
5480 spin_lock(&priv->stream_lock);
5481 mwl8k_remove_stream(hw, stream);
5482 spin_unlock(&priv->stream_lock);
5486 rc = mwl8k_check_ba(hw, stream, vif);
5488 /* If HW restart is in progress mwl8k_post_cmd will
5489 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5492 if (!rc || rc == -EBUSY)
5495 * HW queues take time to be flushed, give them
5501 spin_lock(&priv->stream_lock);
5503 wiphy_err(hw->wiphy, "Stream for tid %d busy after %d"
5504 " attempts\n", tid, MAX_AMPDU_ATTEMPTS);
5505 mwl8k_remove_stream(hw, stream);
5509 ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
5511 case IEEE80211_AMPDU_TX_STOP_CONT:
5512 case IEEE80211_AMPDU_TX_STOP_FLUSH:
5513 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
5515 if (stream->state == AMPDU_STREAM_ACTIVE) {
5517 spin_unlock(&priv->stream_lock);
5518 mwl8k_destroy_ba(hw, idx);
5519 spin_lock(&priv->stream_lock);
5521 mwl8k_remove_stream(hw, stream);
5523 ieee80211_stop_tx_ba_cb_irqsafe(vif, addr, tid);
5525 case IEEE80211_AMPDU_TX_OPERATIONAL:
5526 BUG_ON(stream == NULL);
5527 BUG_ON(stream->state != AMPDU_STREAM_IN_PROGRESS);
5528 spin_unlock(&priv->stream_lock);
5529 rc = mwl8k_create_ba(hw, stream, buf_size, vif);
5530 spin_lock(&priv->stream_lock);
5532 stream->state = AMPDU_STREAM_ACTIVE;
5535 spin_unlock(&priv->stream_lock);
5536 mwl8k_destroy_ba(hw, idx);
5537 spin_lock(&priv->stream_lock);
5538 wiphy_debug(hw->wiphy,
5539 "Failed adding stream for sta %pM tid %d\n",
5541 mwl8k_remove_stream(hw, stream);
5549 spin_unlock(&priv->stream_lock);
5553 static void mwl8k_sw_scan_start(struct ieee80211_hw *hw)
5555 struct mwl8k_priv *priv = hw->priv;
5561 /* clear all stats */
5562 priv->channel_time = 0;
5563 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5564 ioread32(priv->regs + NOK_CCA_CNT_REG);
5565 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5567 priv->sw_scan_start = true;
5570 static void mwl8k_sw_scan_complete(struct ieee80211_hw *hw)
5572 struct mwl8k_priv *priv = hw->priv;
5578 priv->sw_scan_start = false;
5580 /* clear all stats */
5581 priv->channel_time = 0;
5582 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5583 ioread32(priv->regs + NOK_CCA_CNT_REG);
5584 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5587 static const struct ieee80211_ops mwl8k_ops = {
5589 .start = mwl8k_start,
5591 .add_interface = mwl8k_add_interface,
5592 .remove_interface = mwl8k_remove_interface,
5593 .config = mwl8k_config,
5594 .bss_info_changed = mwl8k_bss_info_changed,
5595 .prepare_multicast = mwl8k_prepare_multicast,
5596 .configure_filter = mwl8k_configure_filter,
5597 .set_key = mwl8k_set_key,
5598 .set_rts_threshold = mwl8k_set_rts_threshold,
5599 .sta_add = mwl8k_sta_add,
5600 .sta_remove = mwl8k_sta_remove,
5601 .conf_tx = mwl8k_conf_tx,
5602 .get_stats = mwl8k_get_stats,
5603 .get_survey = mwl8k_get_survey,
5604 .ampdu_action = mwl8k_ampdu_action,
5605 .sw_scan_start = mwl8k_sw_scan_start,
5606 .sw_scan_complete = mwl8k_sw_scan_complete,
5609 static void mwl8k_finalize_join_worker(struct work_struct *work)
5611 struct mwl8k_priv *priv =
5612 container_of(work, struct mwl8k_priv, finalize_join_worker);
5613 struct sk_buff *skb = priv->beacon_skb;
5614 struct ieee80211_mgmt *mgmt = (void *)skb->data;
5615 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
5616 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
5617 mgmt->u.beacon.variable, len);
5618 int dtim_period = 1;
5620 if (tim && tim[1] >= 2)
5621 dtim_period = tim[3];
5623 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
5626 priv->beacon_skb = NULL;
5636 #define MWL8K_8366_AP_FW_API 3
5637 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5638 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5640 #define MWL8K_8764_AP_FW_API 1
5641 #define _MWL8K_8764_AP_FW(api) "mwl8k/fmimage_8764_ap-" #api ".fw"
5642 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5644 static struct mwl8k_device_info mwl8k_info_tbl[] = {
5646 .part_name = "88w8363",
5647 .helper_image = "mwl8k/helper_8363.fw",
5648 .fw_image_sta = "mwl8k/fmimage_8363.fw",
5651 .part_name = "88w8687",
5652 .helper_image = "mwl8k/helper_8687.fw",
5653 .fw_image_sta = "mwl8k/fmimage_8687.fw",
5656 .part_name = "88w8366",
5657 .helper_image = "mwl8k/helper_8366.fw",
5658 .fw_image_sta = "mwl8k/fmimage_8366.fw",
5659 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
5660 .fw_api_ap = MWL8K_8366_AP_FW_API,
5661 .ap_rxd_ops = &rxd_ap_ops,
5664 .part_name = "88w8764",
5665 .fw_image_ap = MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API),
5666 .fw_api_ap = MWL8K_8764_AP_FW_API,
5667 .ap_rxd_ops = &rxd_ap_ops,
5671 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5672 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5673 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5674 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5675 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5676 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5677 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
5679 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
5680 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
5681 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
5682 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
5683 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
5684 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
5685 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
5686 { PCI_VDEVICE(MARVELL, 0x2a41), .driver_data = MWL8366, },
5687 { PCI_VDEVICE(MARVELL, 0x2a42), .driver_data = MWL8366, },
5688 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
5689 { PCI_VDEVICE(MARVELL, 0x2b36), .driver_data = MWL8764, },
5692 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
5694 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
5697 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
5698 "Trying alternative firmware %s\n", pci_name(priv->pdev),
5699 priv->fw_pref, priv->fw_alt);
5700 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
5702 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5703 pci_name(priv->pdev), priv->fw_alt);
5709 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
5710 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
5712 struct mwl8k_priv *priv = context;
5713 struct mwl8k_device_info *di = priv->device_info;
5716 switch (priv->fw_state) {
5719 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
5720 pci_name(priv->pdev), di->helper_image);
5723 priv->fw_helper = fw;
5724 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
5726 if (rc && priv->fw_alt) {
5727 rc = mwl8k_request_alt_fw(priv);
5730 priv->fw_state = FW_STATE_LOADING_ALT;
5734 priv->fw_state = FW_STATE_LOADING_PREF;
5737 case FW_STATE_LOADING_PREF:
5740 rc = mwl8k_request_alt_fw(priv);
5743 priv->fw_state = FW_STATE_LOADING_ALT;
5747 priv->fw_ucode = fw;
5748 rc = mwl8k_firmware_load_success(priv);
5752 complete(&priv->firmware_loading_complete);
5756 case FW_STATE_LOADING_ALT:
5758 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5759 pci_name(priv->pdev), di->helper_image);
5762 priv->fw_ucode = fw;
5763 rc = mwl8k_firmware_load_success(priv);
5767 complete(&priv->firmware_loading_complete);
5771 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
5772 MWL8K_NAME, priv->fw_state);
5779 priv->fw_state = FW_STATE_ERROR;
5780 complete(&priv->firmware_loading_complete);
5781 device_release_driver(&priv->pdev->dev);
5782 mwl8k_release_firmware(priv);
5785 #define MAX_RESTART_ATTEMPTS 1
5786 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
5789 struct mwl8k_priv *priv = hw->priv;
5791 int count = MAX_RESTART_ATTEMPTS;
5794 /* Reset firmware and hardware */
5795 mwl8k_hw_reset(priv);
5797 /* Ask userland hotplug daemon for the device firmware */
5798 rc = mwl8k_request_firmware(priv, fw_image, nowait);
5800 wiphy_err(hw->wiphy, "Firmware files not found\n");
5807 /* Load firmware into hardware */
5808 rc = mwl8k_load_firmware(hw);
5810 wiphy_err(hw->wiphy, "Cannot start firmware\n");
5812 /* Reclaim memory once firmware is successfully loaded */
5813 mwl8k_release_firmware(priv);
5816 /* FW did not start successfully;
5817 * lets try one more time
5820 wiphy_err(hw->wiphy, "Trying to reload the firmware again\n");
5828 static int mwl8k_init_txqs(struct ieee80211_hw *hw)
5830 struct mwl8k_priv *priv = hw->priv;
5834 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
5835 rc = mwl8k_txq_init(hw, i);
5839 iowrite32(priv->txq[i].txd_dma,
5840 priv->sram + priv->txq_offset[i]);
5845 /* initialize hw after successfully loading a firmware image */
5846 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
5848 struct mwl8k_priv *priv = hw->priv;
5853 priv->rxd_ops = priv->device_info->ap_rxd_ops;
5854 if (priv->rxd_ops == NULL) {
5855 wiphy_err(hw->wiphy,
5856 "Driver does not have AP firmware image support for this hardware\n");
5858 goto err_stop_firmware;
5861 priv->rxd_ops = &rxd_sta_ops;
5864 priv->sniffer_enabled = false;
5865 priv->wmm_enabled = false;
5866 priv->pending_tx_pkts = 0;
5867 atomic_set(&priv->watchdog_event_pending, 0);
5869 rc = mwl8k_rxq_init(hw, 0);
5871 goto err_stop_firmware;
5872 rxq_refill(hw, 0, INT_MAX);
5874 /* For the sta firmware, we need to know the dma addresses of tx queues
5875 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5876 * prior to issuing this command. But for the AP case, we learn the
5877 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5878 * case we must initialize the tx queues after.
5880 priv->num_ampdu_queues = 0;
5882 rc = mwl8k_init_txqs(hw);
5884 goto err_free_queues;
5887 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
5888 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5889 iowrite32(MWL8K_A2H_INT_TX_DONE|MWL8K_A2H_INT_RX_READY|
5890 MWL8K_A2H_INT_BA_WATCHDOG,
5891 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
5892 iowrite32(MWL8K_A2H_INT_OPC_DONE,
5893 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
5895 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
5896 IRQF_SHARED, MWL8K_NAME, hw);
5898 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
5899 goto err_free_queues;
5903 * When hw restart is requested,
5904 * mac80211 will take care of clearing
5905 * the ampdu streams, so do not clear
5906 * the ampdu state here
5908 if (!priv->hw_restart_in_progress)
5909 memset(priv->ampdu, 0, sizeof(priv->ampdu));
5912 * Temporarily enable interrupts. Initial firmware host
5913 * commands use interrupts and avoid polling. Disable
5914 * interrupts when done.
5916 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5918 /* Get config data, mac addrs etc */
5920 rc = mwl8k_cmd_get_hw_spec_ap(hw);
5922 rc = mwl8k_init_txqs(hw);
5924 rc = mwl8k_cmd_set_hw_spec(hw);
5926 rc = mwl8k_cmd_get_hw_spec_sta(hw);
5929 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
5933 /* Turn radio off */
5934 rc = mwl8k_cmd_radio_disable(hw);
5936 wiphy_err(hw->wiphy, "Cannot disable\n");
5940 /* Clear MAC address */
5941 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
5943 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
5947 /* Configure Antennas */
5948 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
5950 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
5951 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
5953 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
5956 /* Disable interrupts */
5957 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5958 free_irq(priv->pdev->irq, hw);
5960 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5961 priv->device_info->part_name,
5962 priv->hw_rev, hw->wiphy->perm_addr,
5963 priv->ap_fw ? "AP" : "STA",
5964 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
5965 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
5970 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5971 free_irq(priv->pdev->irq, hw);
5974 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5975 mwl8k_txq_deinit(hw, i);
5976 mwl8k_rxq_deinit(hw, 0);
5979 mwl8k_hw_reset(priv);
5985 * invoke mwl8k_reload_firmware to change the firmware image after the device
5986 * has already been registered
5988 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
5991 struct mwl8k_priv *priv = hw->priv;
5992 struct mwl8k_vif *vif, *tmp_vif;
5995 mwl8k_rxq_deinit(hw, 0);
5998 * All the existing interfaces are re-added by the ieee80211_reconfig;
5999 * which means driver should remove existing interfaces before calling
6000 * ieee80211_restart_hw
6002 if (priv->hw_restart_in_progress)
6003 list_for_each_entry_safe(vif, tmp_vif, &priv->vif_list, list)
6004 mwl8k_remove_vif(priv, vif);
6006 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6007 mwl8k_txq_deinit(hw, i);
6009 rc = mwl8k_init_firmware(hw, fw_image, false);
6013 rc = mwl8k_probe_hw(hw);
6017 if (priv->hw_restart_in_progress)
6020 rc = mwl8k_start(hw);
6024 rc = mwl8k_config(hw, ~0);
6028 for (i = 0; i < MWL8K_TX_WMM_QUEUES; i++) {
6029 rc = mwl8k_conf_tx(hw, NULL, i, &priv->wmm_params[i]);
6037 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
6041 static const struct ieee80211_iface_limit ap_if_limits[] = {
6042 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
6043 { .max = 1, .types = BIT(NL80211_IFTYPE_STATION) },
6046 static const struct ieee80211_iface_combination ap_if_comb = {
6047 .limits = ap_if_limits,
6048 .n_limits = ARRAY_SIZE(ap_if_limits),
6049 .max_interfaces = 8,
6050 .num_different_channels = 1,
6054 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
6056 struct ieee80211_hw *hw = priv->hw;
6059 rc = mwl8k_load_firmware(hw);
6060 mwl8k_release_firmware(priv);
6062 wiphy_err(hw->wiphy, "Cannot start firmware\n");
6067 * Extra headroom is the size of the required DMA header
6068 * minus the size of the smallest 802.11 frame (CTS frame).
6070 hw->extra_tx_headroom =
6071 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
6073 hw->extra_tx_headroom -= priv->ap_fw ? REDUCED_TX_HEADROOM : 0;
6075 hw->queues = MWL8K_TX_WMM_QUEUES;
6077 /* Set rssi values to dBm */
6078 hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_HAS_RATE_CONTROL;
6081 * Ask mac80211 to not to trigger PS mode
6082 * based on PM bit of incoming frames.
6085 hw->flags |= IEEE80211_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");