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;
1639 return IEEE80211_AC_BK;
1643 return IEEE80211_AC_VI;
1647 return IEEE80211_AC_VO;
1655 /* The firmware will fill in the rate information
1656 * for each packet that gets queued in the hardware
1657 * and these macros will interpret that info.
1660 #define RI_FORMAT(a) (a & 0x0001)
1661 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1664 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1666 struct mwl8k_priv *priv = hw->priv;
1667 struct mwl8k_tx_queue *txq = priv->txq + index;
1671 while (txq->len > 0 && limit--) {
1673 struct mwl8k_tx_desc *tx_desc;
1676 struct sk_buff *skb;
1677 struct ieee80211_tx_info *info;
1679 struct ieee80211_sta *sta;
1680 struct mwl8k_sta *sta_info = NULL;
1682 struct ieee80211_hdr *wh;
1685 tx_desc = txq->txd + tx;
1687 status = le32_to_cpu(tx_desc->status);
1689 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1693 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1696 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1697 BUG_ON(txq->len == 0);
1699 priv->pending_tx_pkts--;
1701 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1702 size = le16_to_cpu(tx_desc->pkt_len);
1704 txq->skb[tx] = NULL;
1706 BUG_ON(skb == NULL);
1707 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1709 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1711 wh = (struct ieee80211_hdr *) skb->data;
1713 /* Mark descriptor as unused */
1714 tx_desc->pkt_phys_addr = 0;
1715 tx_desc->pkt_len = 0;
1717 info = IEEE80211_SKB_CB(skb);
1718 if (ieee80211_is_data(wh->frame_control)) {
1720 sta = ieee80211_find_sta_by_ifaddr(hw, wh->addr1,
1723 sta_info = MWL8K_STA(sta);
1724 BUG_ON(sta_info == NULL);
1725 rate_info = le16_to_cpu(tx_desc->rate_info);
1726 /* If rate is < 6.5 Mpbs for an ht station
1727 * do not form an ampdu. If the station is a
1728 * legacy station (format = 0), do not form an
1731 if (RI_RATE_ID_MCS(rate_info) < 1 ||
1732 RI_FORMAT(rate_info) == 0) {
1733 sta_info->is_ampdu_allowed = false;
1735 sta_info->is_ampdu_allowed = true;
1741 ieee80211_tx_info_clear_status(info);
1743 /* Rate control is happening in the firmware.
1744 * Ensure no tx rate is being reported.
1746 info->status.rates[0].idx = -1;
1747 info->status.rates[0].count = 1;
1749 if (MWL8K_TXD_SUCCESS(status))
1750 info->flags |= IEEE80211_TX_STAT_ACK;
1752 ieee80211_tx_status_irqsafe(hw, skb);
1760 /* must be called only when the card's transmit is completely halted */
1761 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1763 struct mwl8k_priv *priv = hw->priv;
1764 struct mwl8k_tx_queue *txq = priv->txq + index;
1766 if (txq->txd == NULL)
1769 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1774 pci_free_consistent(priv->pdev,
1775 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1776 txq->txd, txq->txd_dma);
1780 /* caller must hold priv->stream_lock when calling the stream functions */
1781 static struct mwl8k_ampdu_stream *
1782 mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid)
1784 struct mwl8k_ampdu_stream *stream;
1785 struct mwl8k_priv *priv = hw->priv;
1788 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1789 stream = &priv->ampdu[i];
1790 if (stream->state == AMPDU_NO_STREAM) {
1792 stream->state = AMPDU_STREAM_NEW;
1795 wiphy_debug(hw->wiphy, "Added a new stream for %pM %d",
1804 mwl8k_start_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1808 /* if the stream has already been started, don't start it again */
1809 if (stream->state != AMPDU_STREAM_NEW)
1811 ret = ieee80211_start_tx_ba_session(stream->sta, stream->tid, 0);
1813 wiphy_debug(hw->wiphy, "Failed to start stream for %pM %d: "
1814 "%d\n", stream->sta->addr, stream->tid, ret);
1816 wiphy_debug(hw->wiphy, "Started stream for %pM %d\n",
1817 stream->sta->addr, stream->tid);
1822 mwl8k_remove_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1824 wiphy_debug(hw->wiphy, "Remove stream for %pM %d\n", stream->sta->addr,
1826 memset(stream, 0, sizeof(*stream));
1829 static struct mwl8k_ampdu_stream *
1830 mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid)
1832 struct mwl8k_priv *priv = hw->priv;
1835 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1836 struct mwl8k_ampdu_stream *stream;
1837 stream = &priv->ampdu[i];
1838 if (stream->state == AMPDU_NO_STREAM)
1840 if (!memcmp(stream->sta->addr, addr, ETH_ALEN) &&
1847 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1848 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta *sta, u8 tid)
1850 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1851 struct tx_traffic_info *tx_stats;
1853 BUG_ON(tid >= MWL8K_MAX_TID);
1854 tx_stats = &sta_info->tx_stats[tid];
1856 return sta_info->is_ampdu_allowed &&
1857 tx_stats->pkts > MWL8K_AMPDU_PACKET_THRESHOLD;
1860 static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
1862 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1863 struct tx_traffic_info *tx_stats;
1865 BUG_ON(tid >= MWL8K_MAX_TID);
1866 tx_stats = &sta_info->tx_stats[tid];
1868 if (tx_stats->start_time == 0)
1869 tx_stats->start_time = jiffies;
1871 /* reset the packet count after each second elapses. If the number of
1872 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1873 * an ampdu stream to be started.
1875 if (jiffies - tx_stats->start_time > HZ) {
1877 tx_stats->start_time = 0;
1882 /* The hardware ampdu queues start from 5.
1883 * txpriorities for ampdu queues are
1884 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1885 * and queue 3 is lowest (queue 4 is reserved)
1890 mwl8k_txq_xmit(struct ieee80211_hw *hw,
1892 struct ieee80211_sta *sta,
1893 struct sk_buff *skb)
1895 struct mwl8k_priv *priv = hw->priv;
1896 struct ieee80211_tx_info *tx_info;
1897 struct mwl8k_vif *mwl8k_vif;
1898 struct ieee80211_hdr *wh;
1899 struct mwl8k_tx_queue *txq;
1900 struct mwl8k_tx_desc *tx;
1907 struct mwl8k_ampdu_stream *stream = NULL;
1908 bool start_ba_session = false;
1909 bool mgmtframe = false;
1910 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1911 bool eapol_frame = false;
1913 wh = (struct ieee80211_hdr *)skb->data;
1914 if (ieee80211_is_data_qos(wh->frame_control))
1915 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1919 if (skb->protocol == cpu_to_be16(ETH_P_PAE))
1922 if (ieee80211_is_mgmt(wh->frame_control))
1926 mwl8k_encapsulate_tx_frame(priv, skb);
1928 mwl8k_add_dma_header(priv, skb, 0, 0);
1930 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1932 tx_info = IEEE80211_SKB_CB(skb);
1933 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1935 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1936 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1937 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1938 mwl8k_vif->seqno += 0x10;
1941 /* Setup firmware control bit fields for each frame type. */
1944 if (ieee80211_is_mgmt(wh->frame_control) ||
1945 ieee80211_is_ctl(wh->frame_control)) {
1947 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1948 } else if (ieee80211_is_data(wh->frame_control)) {
1950 if (is_multicast_ether_addr(wh->addr1))
1951 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1953 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1954 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1955 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1957 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1960 /* Queue ADDBA request in the respective data queue. While setting up
1961 * the ampdu stream, mac80211 queues further packets for that
1962 * particular ra/tid pair. However, packets piled up in the hardware
1963 * for that ra/tid pair will still go out. ADDBA request and the
1964 * related data packets going out from different queues asynchronously
1965 * will cause a shift in the receiver window which might result in
1966 * ampdu packets getting dropped at the receiver after the stream has
1969 if (unlikely(ieee80211_is_action(wh->frame_control) &&
1970 mgmt->u.action.category == WLAN_CATEGORY_BACK &&
1971 mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ &&
1973 u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1974 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1975 index = mwl8k_tid_queue_mapping(tid);
1980 if (priv->ap_fw && sta && sta->ht_cap.ht_supported && !eapol_frame &&
1981 ieee80211_is_data_qos(wh->frame_control)) {
1983 mwl8k_tx_count_packet(sta, tid);
1984 spin_lock(&priv->stream_lock);
1985 stream = mwl8k_lookup_stream(hw, sta->addr, tid);
1986 if (stream != NULL) {
1987 if (stream->state == AMPDU_STREAM_ACTIVE) {
1988 WARN_ON(!(qos & MWL8K_QOS_ACK_POLICY_BLOCKACK));
1989 txpriority = (BA_QUEUE + stream->idx) %
1991 if (stream->idx <= 1)
1992 index = stream->idx +
1993 MWL8K_TX_WMM_QUEUES;
1995 } else if (stream->state == AMPDU_STREAM_NEW) {
1996 /* We get here if the driver sends us packets
1997 * after we've initiated a stream, but before
1998 * our ampdu_action routine has been called
1999 * with IEEE80211_AMPDU_TX_START to get the SSN
2000 * for the ADDBA request. So this packet can
2001 * go out with no risk of sequence number
2002 * mismatch. No special handling is required.
2005 /* Drop packets that would go out after the
2006 * ADDBA request was sent but before the ADDBA
2007 * response is received. If we don't do this,
2008 * the recipient would probably receive it
2009 * after the ADDBA request with SSN 0. This
2010 * will cause the recipient's BA receive window
2011 * to shift, which would cause the subsequent
2012 * packets in the BA stream to be discarded.
2013 * mac80211 queues our packets for us in this
2014 * case, so this is really just a safety check.
2016 wiphy_warn(hw->wiphy,
2017 "Cannot send packet while ADDBA "
2018 "dialog is underway.\n");
2019 spin_unlock(&priv->stream_lock);
2024 /* Defer calling mwl8k_start_stream so that the current
2025 * skb can go out before the ADDBA request. This
2026 * prevents sequence number mismatch at the recepient
2027 * as described above.
2029 if (mwl8k_ampdu_allowed(sta, tid)) {
2030 stream = mwl8k_add_stream(hw, sta, tid);
2032 start_ba_session = true;
2035 spin_unlock(&priv->stream_lock);
2037 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
2038 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
2041 dma = pci_map_single(priv->pdev, skb->data,
2042 skb->len, PCI_DMA_TODEVICE);
2044 if (pci_dma_mapping_error(priv->pdev, dma)) {
2045 wiphy_debug(hw->wiphy,
2046 "failed to dma map skb, dropping TX frame.\n");
2047 if (start_ba_session) {
2048 spin_lock(&priv->stream_lock);
2049 mwl8k_remove_stream(hw, stream);
2050 spin_unlock(&priv->stream_lock);
2056 spin_lock_bh(&priv->tx_lock);
2058 txq = priv->txq + index;
2060 /* Mgmt frames that go out frequently are probe
2061 * responses. Other mgmt frames got out relatively
2062 * infrequently. Hence reserve 2 buffers so that
2063 * other mgmt frames do not get dropped due to an
2064 * already queued probe response in one of the
2068 if (txq->len >= MWL8K_TX_DESCS - 2) {
2069 if (!mgmtframe || txq->len == MWL8K_TX_DESCS) {
2070 if (start_ba_session) {
2071 spin_lock(&priv->stream_lock);
2072 mwl8k_remove_stream(hw, stream);
2073 spin_unlock(&priv->stream_lock);
2075 mwl8k_tx_start(priv);
2076 spin_unlock_bh(&priv->tx_lock);
2077 pci_unmap_single(priv->pdev, dma, skb->len,
2084 BUG_ON(txq->skb[txq->tail] != NULL);
2085 txq->skb[txq->tail] = skb;
2087 tx = txq->txd + txq->tail;
2088 tx->data_rate = txdatarate;
2089 tx->tx_priority = txpriority;
2090 tx->qos_control = cpu_to_le16(qos);
2091 tx->pkt_phys_addr = cpu_to_le32(dma);
2092 tx->pkt_len = cpu_to_le16(skb->len);
2094 if (!priv->ap_fw && sta != NULL)
2095 tx->peer_id = MWL8K_STA(sta)->peer_id;
2099 if (priv->ap_fw && ieee80211_is_data(wh->frame_control) && !eapol_frame)
2100 tx->timestamp = cpu_to_le32(ioread32(priv->regs +
2101 MWL8K_HW_TIMER_REGISTER));
2106 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
2109 priv->pending_tx_pkts++;
2112 if (txq->tail == MWL8K_TX_DESCS)
2115 mwl8k_tx_start(priv);
2117 spin_unlock_bh(&priv->tx_lock);
2119 /* Initiate the ampdu session here */
2120 if (start_ba_session) {
2121 spin_lock(&priv->stream_lock);
2122 if (mwl8k_start_stream(hw, stream))
2123 mwl8k_remove_stream(hw, stream);
2124 spin_unlock(&priv->stream_lock);
2132 * We have the following requirements for issuing firmware commands:
2133 * - Some commands require that the packet transmit path is idle when
2134 * the command is issued. (For simplicity, we'll just quiesce the
2135 * transmit path for every command.)
2136 * - There are certain sequences of commands that need to be issued to
2137 * the hardware sequentially, with no other intervening commands.
2139 * This leads to an implementation of a "firmware lock" as a mutex that
2140 * can be taken recursively, and which is taken by both the low-level
2141 * command submission function (mwl8k_post_cmd) as well as any users of
2142 * that function that require issuing of an atomic sequence of commands,
2143 * and quiesces the transmit path whenever it's taken.
2145 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
2147 struct mwl8k_priv *priv = hw->priv;
2149 if (priv->fw_mutex_owner != current) {
2152 mutex_lock(&priv->fw_mutex);
2153 ieee80211_stop_queues(hw);
2155 rc = mwl8k_tx_wait_empty(hw);
2157 if (!priv->hw_restart_in_progress)
2158 ieee80211_wake_queues(hw);
2160 mutex_unlock(&priv->fw_mutex);
2165 priv->fw_mutex_owner = current;
2168 priv->fw_mutex_depth++;
2173 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
2175 struct mwl8k_priv *priv = hw->priv;
2177 if (!--priv->fw_mutex_depth) {
2178 if (!priv->hw_restart_in_progress)
2179 ieee80211_wake_queues(hw);
2181 priv->fw_mutex_owner = NULL;
2182 mutex_unlock(&priv->fw_mutex);
2186 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable,
2190 * Command processing.
2193 /* Timeout firmware commands after 10s */
2194 #define MWL8K_CMD_TIMEOUT_MS 10000
2196 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
2198 DECLARE_COMPLETION_ONSTACK(cmd_wait);
2199 struct mwl8k_priv *priv = hw->priv;
2200 void __iomem *regs = priv->regs;
2201 dma_addr_t dma_addr;
2202 unsigned int dma_size;
2204 unsigned long timeout = 0;
2208 wiphy_dbg(hw->wiphy, "Posting %s [%d]\n",
2209 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), cmd->macid);
2211 /* Before posting firmware commands that could change the hardware
2212 * characteristics, make sure that all BSSes are stopped temporary.
2213 * Enable these stopped BSSes after completion of the commands
2216 rc = mwl8k_fw_lock(hw);
2220 if (priv->ap_fw && priv->running_bsses) {
2221 switch (le16_to_cpu(cmd->code)) {
2222 case MWL8K_CMD_SET_RF_CHANNEL:
2223 case MWL8K_CMD_RADIO_CONTROL:
2224 case MWL8K_CMD_RF_TX_POWER:
2225 case MWL8K_CMD_TX_POWER:
2226 case MWL8K_CMD_RF_ANTENNA:
2227 case MWL8K_CMD_RTS_THRESHOLD:
2228 case MWL8K_CMD_MIMO_CONFIG:
2229 bitmap = priv->running_bsses;
2230 mwl8k_enable_bsses(hw, false, bitmap);
2235 cmd->result = (__force __le16) 0xffff;
2236 dma_size = le16_to_cpu(cmd->length);
2237 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
2238 PCI_DMA_BIDIRECTIONAL);
2239 if (pci_dma_mapping_error(priv->pdev, dma_addr))
2242 priv->hostcmd_wait = &cmd_wait;
2243 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
2244 iowrite32(MWL8K_H2A_INT_DOORBELL,
2245 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2246 iowrite32(MWL8K_H2A_INT_DUMMY,
2247 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2249 timeout = wait_for_completion_timeout(&cmd_wait,
2250 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
2252 priv->hostcmd_wait = NULL;
2255 pci_unmap_single(priv->pdev, dma_addr, dma_size,
2256 PCI_DMA_BIDIRECTIONAL);
2259 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
2260 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2261 MWL8K_CMD_TIMEOUT_MS);
2266 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
2268 rc = cmd->result ? -EINVAL : 0;
2270 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
2271 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2272 le16_to_cpu(cmd->result));
2274 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
2275 mwl8k_cmd_name(cmd->code,
2281 mwl8k_enable_bsses(hw, true, bitmap);
2283 mwl8k_fw_unlock(hw);
2288 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
2289 struct ieee80211_vif *vif,
2290 struct mwl8k_cmd_pkt *cmd)
2293 cmd->macid = MWL8K_VIF(vif)->macid;
2294 return mwl8k_post_cmd(hw, cmd);
2298 * Setup code shared between STA and AP firmware images.
2300 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
2302 struct mwl8k_priv *priv = hw->priv;
2304 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
2305 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
2307 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
2308 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
2310 priv->band_24.band = IEEE80211_BAND_2GHZ;
2311 priv->band_24.channels = priv->channels_24;
2312 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
2313 priv->band_24.bitrates = priv->rates_24;
2314 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
2316 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
2319 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
2321 struct mwl8k_priv *priv = hw->priv;
2323 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
2324 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
2326 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
2327 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
2329 priv->band_50.band = IEEE80211_BAND_5GHZ;
2330 priv->band_50.channels = priv->channels_50;
2331 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
2332 priv->band_50.bitrates = priv->rates_50;
2333 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
2335 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
2339 * CMD_GET_HW_SPEC (STA version).
2341 struct mwl8k_cmd_get_hw_spec_sta {
2342 struct mwl8k_cmd_pkt header;
2344 __u8 host_interface;
2346 __u8 perm_addr[ETH_ALEN];
2351 __u8 mcs_bitmap[16];
2352 __le32 rx_queue_ptr;
2353 __le32 num_tx_queues;
2354 __le32 tx_queue_ptrs[MWL8K_TX_WMM_QUEUES];
2356 __le32 num_tx_desc_per_queue;
2360 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2361 #define MWL8K_CAP_GREENFIELD 0x08000000
2362 #define MWL8K_CAP_AMPDU 0x04000000
2363 #define MWL8K_CAP_RX_STBC 0x01000000
2364 #define MWL8K_CAP_TX_STBC 0x00800000
2365 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2366 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2367 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2368 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2369 #define MWL8K_CAP_DELAY_BA 0x00003000
2370 #define MWL8K_CAP_MIMO 0x00000200
2371 #define MWL8K_CAP_40MHZ 0x00000100
2372 #define MWL8K_CAP_BAND_MASK 0x00000007
2373 #define MWL8K_CAP_5GHZ 0x00000004
2374 #define MWL8K_CAP_2GHZ4 0x00000001
2377 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
2378 struct ieee80211_supported_band *band, u32 cap)
2383 band->ht_cap.ht_supported = 1;
2385 if (cap & MWL8K_CAP_MAX_AMSDU)
2386 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
2387 if (cap & MWL8K_CAP_GREENFIELD)
2388 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
2389 if (cap & MWL8K_CAP_AMPDU) {
2390 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
2391 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2392 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2394 if (cap & MWL8K_CAP_RX_STBC)
2395 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
2396 if (cap & MWL8K_CAP_TX_STBC)
2397 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
2398 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
2399 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
2400 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
2401 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
2402 if (cap & MWL8K_CAP_DELAY_BA)
2403 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
2404 if (cap & MWL8K_CAP_40MHZ)
2405 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2407 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
2408 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
2410 band->ht_cap.mcs.rx_mask[0] = 0xff;
2411 if (rx_streams >= 2)
2412 band->ht_cap.mcs.rx_mask[1] = 0xff;
2413 if (rx_streams >= 3)
2414 band->ht_cap.mcs.rx_mask[2] = 0xff;
2415 band->ht_cap.mcs.rx_mask[4] = 0x01;
2416 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2418 if (rx_streams != tx_streams) {
2419 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
2420 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
2421 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
2426 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
2428 struct mwl8k_priv *priv = hw->priv;
2433 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
2434 mwl8k_setup_2ghz_band(hw);
2435 if (caps & MWL8K_CAP_MIMO)
2436 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
2439 if (caps & MWL8K_CAP_5GHZ) {
2440 mwl8k_setup_5ghz_band(hw);
2441 if (caps & MWL8K_CAP_MIMO)
2442 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
2448 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
2450 struct mwl8k_priv *priv = hw->priv;
2451 struct mwl8k_cmd_get_hw_spec_sta *cmd;
2455 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2459 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2460 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2462 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2463 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2464 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2465 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2466 for (i = 0; i < mwl8k_tx_queues(priv); i++)
2467 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
2468 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2469 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2471 rc = mwl8k_post_cmd(hw, &cmd->header);
2474 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2475 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2476 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2477 priv->hw_rev = cmd->hw_rev;
2478 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2479 priv->ap_macids_supported = 0x00000000;
2480 priv->sta_macids_supported = 0x00000001;
2488 * CMD_GET_HW_SPEC (AP version).
2490 struct mwl8k_cmd_get_hw_spec_ap {
2491 struct mwl8k_cmd_pkt header;
2493 __u8 host_interface;
2496 __u8 perm_addr[ETH_ALEN];
2507 __le32 fw_api_version;
2509 __le32 num_of_ampdu_queues;
2510 __le32 wcbbase_ampdu[MWL8K_MAX_AMPDU_QUEUES];
2513 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2515 struct mwl8k_priv *priv = hw->priv;
2516 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2520 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2524 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2525 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2527 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2528 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2530 rc = mwl8k_post_cmd(hw, &cmd->header);
2535 api_version = le32_to_cpu(cmd->fw_api_version);
2536 if (priv->device_info->fw_api_ap != api_version) {
2537 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2538 " Expected %d got %d.\n", MWL8K_NAME,
2539 priv->device_info->part_name,
2540 priv->device_info->fw_api_ap,
2545 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2546 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2547 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2548 priv->hw_rev = cmd->hw_rev;
2549 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2550 priv->ap_macids_supported = 0x000000ff;
2551 priv->sta_macids_supported = 0x00000100;
2552 priv->num_ampdu_queues = le32_to_cpu(cmd->num_of_ampdu_queues);
2553 if (priv->num_ampdu_queues > MWL8K_MAX_AMPDU_QUEUES) {
2554 wiphy_warn(hw->wiphy, "fw reported %d ampdu queues"
2555 " but we only support %d.\n",
2556 priv->num_ampdu_queues,
2557 MWL8K_MAX_AMPDU_QUEUES);
2558 priv->num_ampdu_queues = MWL8K_MAX_AMPDU_QUEUES;
2560 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2561 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2563 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2564 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2566 priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2567 priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2568 priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2569 priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2571 for (i = 0; i < priv->num_ampdu_queues; i++)
2572 priv->txq_offset[i + MWL8K_TX_WMM_QUEUES] =
2573 le32_to_cpu(cmd->wcbbase_ampdu[i]) & 0xffff;
2584 struct mwl8k_cmd_set_hw_spec {
2585 struct mwl8k_cmd_pkt header;
2587 __u8 host_interface;
2589 __u8 perm_addr[ETH_ALEN];
2594 __le32 rx_queue_ptr;
2595 __le32 num_tx_queues;
2596 __le32 tx_queue_ptrs[MWL8K_MAX_TX_QUEUES];
2598 __le32 num_tx_desc_per_queue;
2602 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2603 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2604 * the packets that are queued for more than 500ms, will be dropped in the
2605 * hardware. This helps minimizing the issues caused due to head-of-line
2606 * blocking where a slow client can hog the bandwidth and affect traffic to a
2609 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2610 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2611 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2612 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2613 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2615 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2617 struct mwl8k_priv *priv = hw->priv;
2618 struct mwl8k_cmd_set_hw_spec *cmd;
2622 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2626 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2627 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2629 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2630 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2631 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2634 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2635 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2636 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2637 * priority is interpreted the right way in firmware.
2639 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
2640 int j = mwl8k_tx_queues(priv) - 1 - i;
2641 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2644 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2645 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2646 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON |
2647 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY |
2648 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR);
2649 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2650 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2652 rc = mwl8k_post_cmd(hw, &cmd->header);
2659 * CMD_MAC_MULTICAST_ADR.
2661 struct mwl8k_cmd_mac_multicast_adr {
2662 struct mwl8k_cmd_pkt header;
2665 __u8 addr[0][ETH_ALEN];
2668 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2669 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2670 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2671 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2673 static struct mwl8k_cmd_pkt *
2674 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2675 struct netdev_hw_addr_list *mc_list)
2677 struct mwl8k_priv *priv = hw->priv;
2678 struct mwl8k_cmd_mac_multicast_adr *cmd;
2683 mc_count = netdev_hw_addr_list_count(mc_list);
2685 if (allmulti || mc_count > priv->num_mcaddrs) {
2690 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2692 cmd = kzalloc(size, GFP_ATOMIC);
2696 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2697 cmd->header.length = cpu_to_le16(size);
2698 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2699 MWL8K_ENABLE_RX_BROADCAST);
2702 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2703 } else if (mc_count) {
2704 struct netdev_hw_addr *ha;
2707 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2708 cmd->numaddr = cpu_to_le16(mc_count);
2709 netdev_hw_addr_list_for_each(ha, mc_list) {
2710 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2714 return &cmd->header;
2720 struct mwl8k_cmd_get_stat {
2721 struct mwl8k_cmd_pkt header;
2725 #define MWL8K_STAT_ACK_FAILURE 9
2726 #define MWL8K_STAT_RTS_FAILURE 12
2727 #define MWL8K_STAT_FCS_ERROR 24
2728 #define MWL8K_STAT_RTS_SUCCESS 11
2730 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2731 struct ieee80211_low_level_stats *stats)
2733 struct mwl8k_cmd_get_stat *cmd;
2736 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2740 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2741 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2743 rc = mwl8k_post_cmd(hw, &cmd->header);
2745 stats->dot11ACKFailureCount =
2746 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2747 stats->dot11RTSFailureCount =
2748 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2749 stats->dot11FCSErrorCount =
2750 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2751 stats->dot11RTSSuccessCount =
2752 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2760 * CMD_RADIO_CONTROL.
2762 struct mwl8k_cmd_radio_control {
2763 struct mwl8k_cmd_pkt header;
2770 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2772 struct mwl8k_priv *priv = hw->priv;
2773 struct mwl8k_cmd_radio_control *cmd;
2776 if (enable == priv->radio_on && !force)
2779 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2783 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2784 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2785 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2786 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2787 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2789 rc = mwl8k_post_cmd(hw, &cmd->header);
2793 priv->radio_on = enable;
2798 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2800 return mwl8k_cmd_radio_control(hw, 0, 0);
2803 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2805 return mwl8k_cmd_radio_control(hw, 1, 0);
2809 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2811 struct mwl8k_priv *priv = hw->priv;
2813 priv->radio_short_preamble = short_preamble;
2815 return mwl8k_cmd_radio_control(hw, 1, 1);
2821 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2823 struct mwl8k_cmd_rf_tx_power {
2824 struct mwl8k_cmd_pkt header;
2826 __le16 support_level;
2827 __le16 current_level;
2829 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2832 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2834 struct mwl8k_cmd_rf_tx_power *cmd;
2837 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2841 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2842 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2843 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2844 cmd->support_level = cpu_to_le16(dBm);
2846 rc = mwl8k_post_cmd(hw, &cmd->header);
2855 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2857 struct mwl8k_cmd_tx_power {
2858 struct mwl8k_cmd_pkt header;
2864 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2867 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2868 struct ieee80211_conf *conf,
2871 struct ieee80211_channel *channel = conf->chandef.chan;
2872 enum nl80211_channel_type channel_type =
2873 cfg80211_get_chandef_type(&conf->chandef);
2874 struct mwl8k_cmd_tx_power *cmd;
2878 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2882 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2883 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2884 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2886 if (channel->band == IEEE80211_BAND_2GHZ)
2887 cmd->band = cpu_to_le16(0x1);
2888 else if (channel->band == IEEE80211_BAND_5GHZ)
2889 cmd->band = cpu_to_le16(0x4);
2891 cmd->channel = cpu_to_le16(channel->hw_value);
2893 if (channel_type == NL80211_CHAN_NO_HT ||
2894 channel_type == NL80211_CHAN_HT20) {
2895 cmd->bw = cpu_to_le16(0x2);
2897 cmd->bw = cpu_to_le16(0x4);
2898 if (channel_type == NL80211_CHAN_HT40MINUS)
2899 cmd->sub_ch = cpu_to_le16(0x3);
2900 else if (channel_type == NL80211_CHAN_HT40PLUS)
2901 cmd->sub_ch = cpu_to_le16(0x1);
2904 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2905 cmd->power_level_list[i] = cpu_to_le16(pwr);
2907 rc = mwl8k_post_cmd(hw, &cmd->header);
2916 struct mwl8k_cmd_rf_antenna {
2917 struct mwl8k_cmd_pkt header;
2922 #define MWL8K_RF_ANTENNA_RX 1
2923 #define MWL8K_RF_ANTENNA_TX 2
2926 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2928 struct mwl8k_cmd_rf_antenna *cmd;
2931 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2935 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2936 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2937 cmd->antenna = cpu_to_le16(antenna);
2938 cmd->mode = cpu_to_le16(mask);
2940 rc = mwl8k_post_cmd(hw, &cmd->header);
2949 struct mwl8k_cmd_set_beacon {
2950 struct mwl8k_cmd_pkt header;
2955 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2956 struct ieee80211_vif *vif, u8 *beacon, int len)
2958 struct mwl8k_cmd_set_beacon *cmd;
2961 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2965 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2966 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2967 cmd->beacon_len = cpu_to_le16(len);
2968 memcpy(cmd->beacon, beacon, len);
2970 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2979 struct mwl8k_cmd_set_pre_scan {
2980 struct mwl8k_cmd_pkt header;
2983 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2985 struct mwl8k_cmd_set_pre_scan *cmd;
2988 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2992 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2993 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2995 rc = mwl8k_post_cmd(hw, &cmd->header);
3002 * CMD_BBP_REG_ACCESS.
3004 struct mwl8k_cmd_bbp_reg_access {
3005 struct mwl8k_cmd_pkt header;
3013 mwl8k_cmd_bbp_reg_access(struct ieee80211_hw *hw,
3018 struct mwl8k_cmd_bbp_reg_access *cmd;
3021 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3025 cmd->header.code = cpu_to_le16(MWL8K_CMD_BBP_REG_ACCESS);
3026 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3027 cmd->action = cpu_to_le16(action);
3028 cmd->offset = cpu_to_le16(offset);
3030 rc = mwl8k_post_cmd(hw, &cmd->header);
3033 *value = cmd->value;
3043 * CMD_SET_POST_SCAN.
3045 struct mwl8k_cmd_set_post_scan {
3046 struct mwl8k_cmd_pkt header;
3048 __u8 bssid[ETH_ALEN];
3052 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
3054 struct mwl8k_cmd_set_post_scan *cmd;
3057 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3061 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
3062 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3064 memcpy(cmd->bssid, mac, ETH_ALEN);
3066 rc = mwl8k_post_cmd(hw, &cmd->header);
3072 static int freq_to_idx(struct mwl8k_priv *priv, int freq)
3074 struct ieee80211_supported_band *sband;
3075 int band, ch, idx = 0;
3077 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
3078 sband = priv->hw->wiphy->bands[band];
3082 for (ch = 0; ch < sband->n_channels; ch++, idx++)
3083 if (sband->channels[ch].center_freq == freq)
3091 static void mwl8k_update_survey(struct mwl8k_priv *priv,
3092 struct ieee80211_channel *channel)
3094 u32 cca_cnt, rx_rdy;
3096 struct survey_info *survey;
3098 idx = freq_to_idx(priv, priv->acs_chan->center_freq);
3099 if (idx >= MWL8K_NUM_CHANS) {
3100 wiphy_err(priv->hw->wiphy, "Failed to update survey\n");
3104 survey = &priv->survey[idx];
3106 cca_cnt = ioread32(priv->regs + NOK_CCA_CNT_REG);
3107 cca_cnt /= 1000; /* uSecs to mSecs */
3108 survey->channel_time_busy = (u64) cca_cnt;
3110 rx_rdy = ioread32(priv->regs + BBU_RXRDY_CNT_REG);
3111 rx_rdy /= 1000; /* uSecs to mSecs */
3112 survey->channel_time_rx = (u64) rx_rdy;
3114 priv->channel_time = jiffies - priv->channel_time;
3115 survey->channel_time = jiffies_to_msecs(priv->channel_time);
3117 survey->channel = channel;
3119 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &nf);
3121 /* Make sure sign is negative else ACS at hostapd fails */
3122 survey->noise = nf * -1;
3124 survey->filled = SURVEY_INFO_NOISE_DBM |
3125 SURVEY_INFO_CHANNEL_TIME |
3126 SURVEY_INFO_CHANNEL_TIME_BUSY |
3127 SURVEY_INFO_CHANNEL_TIME_RX;
3131 * CMD_SET_RF_CHANNEL.
3133 struct mwl8k_cmd_set_rf_channel {
3134 struct mwl8k_cmd_pkt header;
3136 __u8 current_channel;
3137 __le32 channel_flags;
3140 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
3141 struct ieee80211_conf *conf)
3143 struct ieee80211_channel *channel = conf->chandef.chan;
3144 enum nl80211_channel_type channel_type =
3145 cfg80211_get_chandef_type(&conf->chandef);
3146 struct mwl8k_cmd_set_rf_channel *cmd;
3147 struct mwl8k_priv *priv = hw->priv;
3150 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3154 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
3155 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3156 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3157 cmd->current_channel = channel->hw_value;
3159 if (channel->band == IEEE80211_BAND_2GHZ)
3160 cmd->channel_flags |= cpu_to_le32(0x00000001);
3161 else if (channel->band == IEEE80211_BAND_5GHZ)
3162 cmd->channel_flags |= cpu_to_le32(0x00000004);
3164 if (!priv->sw_scan_start) {
3165 if (channel_type == NL80211_CHAN_NO_HT ||
3166 channel_type == NL80211_CHAN_HT20)
3167 cmd->channel_flags |= cpu_to_le32(0x00000080);
3168 else if (channel_type == NL80211_CHAN_HT40MINUS)
3169 cmd->channel_flags |= cpu_to_le32(0x000001900);
3170 else if (channel_type == NL80211_CHAN_HT40PLUS)
3171 cmd->channel_flags |= cpu_to_le32(0x000000900);
3173 cmd->channel_flags |= cpu_to_le32(0x00000080);
3176 if (priv->sw_scan_start) {
3177 /* Store current channel stats
3178 * before switching to newer one.
3179 * This will be processed only for AP fw.
3181 if (priv->channel_time != 0)
3182 mwl8k_update_survey(priv, priv->acs_chan);
3184 priv->channel_time = jiffies;
3185 priv->acs_chan = channel;
3188 rc = mwl8k_post_cmd(hw, &cmd->header);
3197 #define MWL8K_FRAME_PROT_DISABLED 0x00
3198 #define MWL8K_FRAME_PROT_11G 0x07
3199 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3200 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3202 struct mwl8k_cmd_update_set_aid {
3203 struct mwl8k_cmd_pkt header;
3206 /* AP's MAC address (BSSID) */
3207 __u8 bssid[ETH_ALEN];
3208 __le16 protection_mode;
3209 __u8 supp_rates[14];
3212 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
3218 * Clear nonstandard rate 4.
3222 for (i = 0, j = 0; i < 13; i++) {
3223 if (mask & (1 << i))
3224 rates[j++] = mwl8k_rates_24[i].hw_value;
3229 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
3230 struct ieee80211_vif *vif, u32 legacy_rate_mask)
3232 struct mwl8k_cmd_update_set_aid *cmd;
3236 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3240 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
3241 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3242 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
3243 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
3245 if (vif->bss_conf.use_cts_prot) {
3246 prot_mode = MWL8K_FRAME_PROT_11G;
3248 switch (vif->bss_conf.ht_operation_mode &
3249 IEEE80211_HT_OP_MODE_PROTECTION) {
3250 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
3251 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
3253 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
3254 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
3257 prot_mode = MWL8K_FRAME_PROT_DISABLED;
3261 cmd->protection_mode = cpu_to_le16(prot_mode);
3263 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
3265 rc = mwl8k_post_cmd(hw, &cmd->header);
3274 struct mwl8k_cmd_set_rate {
3275 struct mwl8k_cmd_pkt header;
3276 __u8 legacy_rates[14];
3278 /* Bitmap for supported MCS codes. */
3284 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3285 u32 legacy_rate_mask, u8 *mcs_rates)
3287 struct mwl8k_cmd_set_rate *cmd;
3290 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3294 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
3295 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3296 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
3297 memcpy(cmd->mcs_set, mcs_rates, 16);
3299 rc = mwl8k_post_cmd(hw, &cmd->header);
3306 * CMD_FINALIZE_JOIN.
3308 #define MWL8K_FJ_BEACON_MAXLEN 128
3310 struct mwl8k_cmd_finalize_join {
3311 struct mwl8k_cmd_pkt header;
3312 __le32 sleep_interval; /* Number of beacon periods to sleep */
3313 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
3316 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
3317 int framelen, int dtim)
3319 struct mwl8k_cmd_finalize_join *cmd;
3320 struct ieee80211_mgmt *payload = frame;
3324 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3328 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
3329 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3330 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
3332 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
3333 if (payload_len < 0)
3335 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
3336 payload_len = MWL8K_FJ_BEACON_MAXLEN;
3338 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
3340 rc = mwl8k_post_cmd(hw, &cmd->header);
3347 * CMD_SET_RTS_THRESHOLD.
3349 struct mwl8k_cmd_set_rts_threshold {
3350 struct mwl8k_cmd_pkt header;
3356 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
3358 struct mwl8k_cmd_set_rts_threshold *cmd;
3361 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3365 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
3366 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3367 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3368 cmd->threshold = cpu_to_le16(rts_thresh);
3370 rc = mwl8k_post_cmd(hw, &cmd->header);
3379 struct mwl8k_cmd_set_slot {
3380 struct mwl8k_cmd_pkt header;
3385 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
3387 struct mwl8k_cmd_set_slot *cmd;
3390 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3394 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
3395 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3396 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3397 cmd->short_slot = short_slot_time;
3399 rc = mwl8k_post_cmd(hw, &cmd->header);
3406 * CMD_SET_EDCA_PARAMS.
3408 struct mwl8k_cmd_set_edca_params {
3409 struct mwl8k_cmd_pkt header;
3411 /* See MWL8K_SET_EDCA_XXX below */
3414 /* TX opportunity in units of 32 us */
3419 /* Log exponent of max contention period: 0...15 */
3422 /* Log exponent of min contention period: 0...15 */
3425 /* Adaptive interframe spacing in units of 32us */
3428 /* TX queue to configure */
3432 /* Log exponent of max contention period: 0...15 */
3435 /* Log exponent of min contention period: 0...15 */
3438 /* Adaptive interframe spacing in units of 32us */
3441 /* TX queue to configure */
3447 #define MWL8K_SET_EDCA_CW 0x01
3448 #define MWL8K_SET_EDCA_TXOP 0x02
3449 #define MWL8K_SET_EDCA_AIFS 0x04
3451 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3452 MWL8K_SET_EDCA_TXOP | \
3453 MWL8K_SET_EDCA_AIFS)
3456 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
3457 __u16 cw_min, __u16 cw_max,
3458 __u8 aifs, __u16 txop)
3460 struct mwl8k_priv *priv = hw->priv;
3461 struct mwl8k_cmd_set_edca_params *cmd;
3464 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3468 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
3469 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3470 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
3471 cmd->txop = cpu_to_le16(txop);
3473 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
3474 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
3475 cmd->ap.aifs = aifs;
3478 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
3479 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
3480 cmd->sta.aifs = aifs;
3481 cmd->sta.txq = qnum;
3484 rc = mwl8k_post_cmd(hw, &cmd->header);
3493 struct mwl8k_cmd_set_wmm_mode {
3494 struct mwl8k_cmd_pkt header;
3498 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
3500 struct mwl8k_priv *priv = hw->priv;
3501 struct mwl8k_cmd_set_wmm_mode *cmd;
3504 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3508 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
3509 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3510 cmd->action = cpu_to_le16(!!enable);
3512 rc = mwl8k_post_cmd(hw, &cmd->header);
3516 priv->wmm_enabled = enable;
3524 struct mwl8k_cmd_mimo_config {
3525 struct mwl8k_cmd_pkt header;
3527 __u8 rx_antenna_map;
3528 __u8 tx_antenna_map;
3531 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
3533 struct mwl8k_cmd_mimo_config *cmd;
3536 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3540 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
3541 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3542 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
3543 cmd->rx_antenna_map = rx;
3544 cmd->tx_antenna_map = tx;
3546 rc = mwl8k_post_cmd(hw, &cmd->header);
3553 * CMD_USE_FIXED_RATE (STA version).
3555 struct mwl8k_cmd_use_fixed_rate_sta {
3556 struct mwl8k_cmd_pkt header;
3558 __le32 allow_rate_drop;
3562 __le32 enable_retry;
3571 #define MWL8K_USE_AUTO_RATE 0x0002
3572 #define MWL8K_UCAST_RATE 0
3574 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
3576 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
3579 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3583 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3584 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3585 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3586 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
3588 rc = mwl8k_post_cmd(hw, &cmd->header);
3595 * CMD_USE_FIXED_RATE (AP version).
3597 struct mwl8k_cmd_use_fixed_rate_ap {
3598 struct mwl8k_cmd_pkt header;
3600 __le32 allow_rate_drop;
3602 struct mwl8k_rate_entry_ap {
3604 __le32 enable_retry;
3609 u8 multicast_rate_type;
3614 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
3616 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
3619 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3623 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3624 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3625 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3626 cmd->multicast_rate = mcast;
3627 cmd->management_rate = mgmt;
3629 rc = mwl8k_post_cmd(hw, &cmd->header);
3636 * CMD_ENABLE_SNIFFER.
3638 struct mwl8k_cmd_enable_sniffer {
3639 struct mwl8k_cmd_pkt header;
3643 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3645 struct mwl8k_cmd_enable_sniffer *cmd;
3648 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3652 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3653 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3654 cmd->action = cpu_to_le32(!!enable);
3656 rc = mwl8k_post_cmd(hw, &cmd->header);
3662 struct mwl8k_cmd_update_mac_addr {
3663 struct mwl8k_cmd_pkt header;
3667 __u8 mac_addr[ETH_ALEN];
3669 __u8 mac_addr[ETH_ALEN];
3673 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3674 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3675 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3676 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3678 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw *hw,
3679 struct ieee80211_vif *vif, u8 *mac, bool set)
3681 struct mwl8k_priv *priv = hw->priv;
3682 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3683 struct mwl8k_cmd_update_mac_addr *cmd;
3687 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3688 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3689 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3691 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3693 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3695 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3696 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3697 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3698 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3700 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3703 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3708 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3710 cmd->header.code = cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR);
3712 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3714 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3715 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3717 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3720 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3727 * MWL8K_CMD_SET_MAC_ADDR.
3729 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3730 struct ieee80211_vif *vif, u8 *mac)
3732 return mwl8k_cmd_update_mac_addr(hw, vif, mac, true);
3736 * MWL8K_CMD_DEL_MAC_ADDR.
3738 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw *hw,
3739 struct ieee80211_vif *vif, u8 *mac)
3741 return mwl8k_cmd_update_mac_addr(hw, vif, mac, false);
3745 * CMD_SET_RATEADAPT_MODE.
3747 struct mwl8k_cmd_set_rate_adapt_mode {
3748 struct mwl8k_cmd_pkt header;
3753 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3755 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3758 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3762 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3763 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3764 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3765 cmd->mode = cpu_to_le16(mode);
3767 rc = mwl8k_post_cmd(hw, &cmd->header);
3774 * CMD_GET_WATCHDOG_BITMAP.
3776 struct mwl8k_cmd_get_watchdog_bitmap {
3777 struct mwl8k_cmd_pkt header;
3781 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw *hw, u8 *bitmap)
3783 struct mwl8k_cmd_get_watchdog_bitmap *cmd;
3786 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3790 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP);
3791 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3793 rc = mwl8k_post_cmd(hw, &cmd->header);
3795 *bitmap = cmd->bitmap;
3802 #define MWL8K_WMM_QUEUE_NUMBER 3
3804 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
3807 static void mwl8k_watchdog_ba_events(struct work_struct *work)
3810 u8 bitmap = 0, stream_index;
3811 struct mwl8k_ampdu_stream *streams;
3812 struct mwl8k_priv *priv =
3813 container_of(work, struct mwl8k_priv, watchdog_ba_handle);
3814 struct ieee80211_hw *hw = priv->hw;
3820 rc = mwl8k_cmd_get_watchdog_bitmap(priv->hw, &bitmap);
3824 spin_lock(&priv->stream_lock);
3826 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3827 for (i = 0; i < TOTAL_HW_TX_QUEUES; i++) {
3828 if (bitmap & (1 << i)) {
3829 stream_index = (i + MWL8K_WMM_QUEUE_NUMBER) %
3831 streams = &priv->ampdu[stream_index];
3832 if (streams->state == AMPDU_STREAM_ACTIVE) {
3833 ieee80211_stop_tx_ba_session(streams->sta,
3835 spin_unlock(&priv->stream_lock);
3836 mwl8k_destroy_ba(hw, stream_index);
3837 spin_lock(&priv->stream_lock);
3842 spin_unlock(&priv->stream_lock);
3844 atomic_dec(&priv->watchdog_event_pending);
3845 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3846 iowrite32((status | MWL8K_A2H_INT_BA_WATCHDOG),
3847 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3848 mwl8k_fw_unlock(hw);
3856 struct mwl8k_cmd_bss_start {
3857 struct mwl8k_cmd_pkt header;
3861 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3862 struct ieee80211_vif *vif, int enable)
3864 struct mwl8k_cmd_bss_start *cmd;
3865 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3866 struct mwl8k_priv *priv = hw->priv;
3869 if (enable && (priv->running_bsses & (1 << mwl8k_vif->macid)))
3872 if (!enable && !(priv->running_bsses & (1 << mwl8k_vif->macid)))
3875 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3879 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3880 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3881 cmd->enable = cpu_to_le32(enable);
3883 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3888 priv->running_bsses |= (1 << mwl8k_vif->macid);
3890 priv->running_bsses &= ~(1 << mwl8k_vif->macid);
3895 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable, u32 bitmap)
3897 struct mwl8k_priv *priv = hw->priv;
3898 struct mwl8k_vif *mwl8k_vif, *tmp_vif;
3899 struct ieee80211_vif *vif;
3901 list_for_each_entry_safe(mwl8k_vif, tmp_vif, &priv->vif_list, list) {
3902 vif = mwl8k_vif->vif;
3904 if (!(bitmap & (1 << mwl8k_vif->macid)))
3907 if (vif->type == NL80211_IFTYPE_AP)
3908 mwl8k_cmd_bss_start(hw, vif, enable);
3916 * UPSTREAM is tx direction
3918 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3919 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3921 enum ba_stream_action_type {
3930 struct mwl8k_create_ba_stream {
3935 u8 peer_mac_addr[6];
3941 u8 reset_seq_no_flag;
3943 u8 sta_src_mac_addr[6];
3946 struct mwl8k_destroy_ba_stream {
3951 struct mwl8k_cmd_bastream {
3952 struct mwl8k_cmd_pkt header;
3955 struct mwl8k_create_ba_stream create_params;
3956 struct mwl8k_destroy_ba_stream destroy_params;
3961 mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3962 struct ieee80211_vif *vif)
3964 struct mwl8k_cmd_bastream *cmd;
3967 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3971 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3972 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3974 cmd->action = cpu_to_le32(MWL8K_BA_CHECK);
3976 cmd->create_params.queue_id = stream->idx;
3977 memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr,
3979 cmd->create_params.tid = stream->tid;
3981 cmd->create_params.flags =
3982 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) |
3983 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM);
3985 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3993 mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3994 u8 buf_size, struct ieee80211_vif *vif)
3996 struct mwl8k_cmd_bastream *cmd;
3999 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4004 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4005 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4007 cmd->action = cpu_to_le32(MWL8K_BA_CREATE);
4009 cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size);
4010 cmd->create_params.window_size = cpu_to_le32((u32)buf_size);
4011 cmd->create_params.queue_id = stream->idx;
4013 memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN);
4014 cmd->create_params.tid = stream->tid;
4015 cmd->create_params.curr_seq_no = cpu_to_le16(0);
4016 cmd->create_params.reset_seq_no_flag = 1;
4018 cmd->create_params.param_info =
4019 (stream->sta->ht_cap.ampdu_factor &
4020 IEEE80211_HT_AMPDU_PARM_FACTOR) |
4021 ((stream->sta->ht_cap.ampdu_density << 2) &
4022 IEEE80211_HT_AMPDU_PARM_DENSITY);
4024 cmd->create_params.flags =
4025 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE |
4026 BASTREAM_FLAG_DIRECTION_UPSTREAM);
4028 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4030 wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n",
4031 stream->sta->addr, stream->tid);
4037 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
4040 struct mwl8k_cmd_bastream *cmd;
4042 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4046 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4047 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4048 cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
4050 cmd->destroy_params.ba_context = cpu_to_le32(idx);
4051 mwl8k_post_cmd(hw, &cmd->header);
4053 wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", idx);
4061 struct mwl8k_cmd_set_new_stn {
4062 struct mwl8k_cmd_pkt header;
4068 __le32 legacy_rates;
4071 __le16 ht_capabilities_info;
4072 __u8 mac_ht_param_info;
4074 __u8 control_channel;
4083 #define MWL8K_STA_ACTION_ADD 0
4084 #define MWL8K_STA_ACTION_REMOVE 2
4086 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
4087 struct ieee80211_vif *vif,
4088 struct ieee80211_sta *sta)
4090 struct mwl8k_cmd_set_new_stn *cmd;
4094 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4098 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4099 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4100 cmd->aid = cpu_to_le16(sta->aid);
4101 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
4102 cmd->stn_id = cpu_to_le16(sta->aid);
4103 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
4104 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
4105 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4107 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4108 cmd->legacy_rates = cpu_to_le32(rates);
4109 if (sta->ht_cap.ht_supported) {
4110 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
4111 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
4112 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
4113 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
4114 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
4115 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
4116 ((sta->ht_cap.ampdu_density & 7) << 2);
4117 cmd->is_qos_sta = 1;
4120 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4126 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
4127 struct ieee80211_vif *vif)
4129 struct mwl8k_cmd_set_new_stn *cmd;
4132 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4136 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4137 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4138 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
4140 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4146 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
4147 struct ieee80211_vif *vif, u8 *addr)
4149 struct mwl8k_cmd_set_new_stn *cmd;
4150 struct mwl8k_priv *priv = hw->priv;
4154 spin_lock(&priv->stream_lock);
4155 /* Destroy any active ampdu streams for this sta */
4156 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
4157 struct mwl8k_ampdu_stream *s;
4158 s = &priv->ampdu[i];
4159 if (s->state != AMPDU_NO_STREAM) {
4160 if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
4161 if (s->state == AMPDU_STREAM_ACTIVE) {
4163 spin_unlock(&priv->stream_lock);
4164 mwl8k_destroy_ba(hw, idx);
4165 spin_lock(&priv->stream_lock);
4166 } else if (s->state == AMPDU_STREAM_NEW) {
4167 mwl8k_remove_stream(hw, s);
4173 spin_unlock(&priv->stream_lock);
4175 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4179 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4180 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4181 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4182 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
4184 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4191 * CMD_UPDATE_ENCRYPTION.
4194 #define MAX_ENCR_KEY_LENGTH 16
4195 #define MIC_KEY_LENGTH 8
4197 struct mwl8k_cmd_update_encryption {
4198 struct mwl8k_cmd_pkt header;
4207 struct mwl8k_cmd_set_key {
4208 struct mwl8k_cmd_pkt header;
4217 __u8 key_material[MAX_ENCR_KEY_LENGTH];
4218 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
4219 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
4220 __le16 tkip_rsc_low;
4221 __le32 tkip_rsc_high;
4222 __le16 tkip_tsc_low;
4223 __le32 tkip_tsc_high;
4230 MWL8K_ENCR_REMOVE_KEY,
4231 MWL8K_ENCR_SET_GROUP_KEY,
4234 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4235 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4236 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4237 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4238 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4246 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4247 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4248 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4249 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4250 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4252 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
4253 struct ieee80211_vif *vif,
4257 struct mwl8k_cmd_update_encryption *cmd;
4260 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4264 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4265 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4266 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
4267 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4268 cmd->encr_type = encr_type;
4270 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4276 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
4278 struct ieee80211_key_conf *key)
4280 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4281 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4282 cmd->length = cpu_to_le16(sizeof(*cmd) -
4283 offsetof(struct mwl8k_cmd_set_key, length));
4284 cmd->key_id = cpu_to_le32(key->keyidx);
4285 cmd->key_len = cpu_to_le16(key->keylen);
4286 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4288 switch (key->cipher) {
4289 case WLAN_CIPHER_SUITE_WEP40:
4290 case WLAN_CIPHER_SUITE_WEP104:
4291 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
4292 if (key->keyidx == 0)
4293 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
4296 case WLAN_CIPHER_SUITE_TKIP:
4297 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
4298 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4299 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4300 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4301 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4302 | MWL8K_KEY_FLAG_TSC_VALID);
4304 case WLAN_CIPHER_SUITE_CCMP:
4305 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
4306 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4307 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4308 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4317 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
4318 struct ieee80211_vif *vif,
4320 struct ieee80211_key_conf *key)
4322 struct mwl8k_cmd_set_key *cmd;
4327 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4329 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4333 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4339 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4340 action = MWL8K_ENCR_SET_KEY;
4342 action = MWL8K_ENCR_SET_GROUP_KEY;
4344 switch (key->cipher) {
4345 case WLAN_CIPHER_SUITE_WEP40:
4346 case WLAN_CIPHER_SUITE_WEP104:
4347 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
4348 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
4349 sizeof(*key) + key->keylen);
4350 mwl8k_vif->wep_key_conf[idx].enabled = 1;
4353 keymlen = key->keylen;
4354 action = MWL8K_ENCR_SET_KEY;
4356 case WLAN_CIPHER_SUITE_TKIP:
4357 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
4359 case WLAN_CIPHER_SUITE_CCMP:
4360 keymlen = key->keylen;
4367 memcpy(cmd->key_material, key->key, keymlen);
4368 cmd->action = cpu_to_le32(action);
4370 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4377 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
4378 struct ieee80211_vif *vif,
4380 struct ieee80211_key_conf *key)
4382 struct mwl8k_cmd_set_key *cmd;
4384 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4386 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4390 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4394 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4395 key->cipher == WLAN_CIPHER_SUITE_WEP104)
4396 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
4398 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
4400 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4407 static int mwl8k_set_key(struct ieee80211_hw *hw,
4408 enum set_key_cmd cmd_param,
4409 struct ieee80211_vif *vif,
4410 struct ieee80211_sta *sta,
4411 struct ieee80211_key_conf *key)
4416 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4417 struct mwl8k_priv *priv = hw->priv;
4419 if (vif->type == NL80211_IFTYPE_STATION && !priv->ap_fw)
4427 if (cmd_param == SET_KEY) {
4428 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
4432 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
4433 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
4434 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
4436 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
4438 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
4443 mwl8k_vif->is_hw_crypto_enabled = true;
4446 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
4458 struct ewc_ht_info {
4464 struct peer_capability_info {
4465 /* Peer type - AP vs. STA. */
4468 /* Basic 802.11 capabilities from assoc resp. */
4471 /* Set if peer supports 802.11n high throughput (HT). */
4474 /* Valid if HT is supported. */
4476 __u8 extended_ht_caps;
4477 struct ewc_ht_info ewc_info;
4479 /* Legacy rate table. Intersection of our rates and peer rates. */
4480 __u8 legacy_rates[12];
4482 /* HT rate table. Intersection of our rates and peer rates. */
4486 /* If set, interoperability mode, no proprietary extensions. */
4490 __le16 amsdu_enabled;
4493 struct mwl8k_cmd_update_stadb {
4494 struct mwl8k_cmd_pkt header;
4496 /* See STADB_ACTION_TYPE */
4499 /* Peer MAC address */
4500 __u8 peer_addr[ETH_ALEN];
4504 /* Peer info - valid during add/update. */
4505 struct peer_capability_info peer_info;
4508 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4509 #define MWL8K_STA_DB_DEL_ENTRY 2
4511 /* Peer Entry flags - used to define the type of the peer node */
4512 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4514 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
4515 struct ieee80211_vif *vif,
4516 struct ieee80211_sta *sta)
4518 struct mwl8k_cmd_update_stadb *cmd;
4519 struct peer_capability_info *p;
4523 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4527 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4528 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4529 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
4530 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
4532 p = &cmd->peer_info;
4533 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
4534 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
4535 p->ht_support = sta->ht_cap.ht_supported;
4536 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
4537 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
4538 ((sta->ht_cap.ampdu_density & 7) << 2);
4539 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
4540 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
4542 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4543 legacy_rate_mask_to_array(p->legacy_rates, rates);
4544 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
4546 p->amsdu_enabled = 0;
4548 rc = mwl8k_post_cmd(hw, &cmd->header);
4556 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
4557 struct ieee80211_vif *vif, u8 *addr)
4559 struct mwl8k_cmd_update_stadb *cmd;
4562 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4566 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4567 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4568 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
4569 memcpy(cmd->peer_addr, addr, ETH_ALEN);
4571 rc = mwl8k_post_cmd(hw, &cmd->header);
4579 * Interrupt handling.
4581 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
4583 struct ieee80211_hw *hw = dev_id;
4584 struct mwl8k_priv *priv = hw->priv;
4587 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4591 if (status & MWL8K_A2H_INT_TX_DONE) {
4592 status &= ~MWL8K_A2H_INT_TX_DONE;
4593 tasklet_schedule(&priv->poll_tx_task);
4596 if (status & MWL8K_A2H_INT_RX_READY) {
4597 status &= ~MWL8K_A2H_INT_RX_READY;
4598 tasklet_schedule(&priv->poll_rx_task);
4601 if (status & MWL8K_A2H_INT_BA_WATCHDOG) {
4602 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG,
4603 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4605 atomic_inc(&priv->watchdog_event_pending);
4606 status &= ~MWL8K_A2H_INT_BA_WATCHDOG;
4607 ieee80211_queue_work(hw, &priv->watchdog_ba_handle);
4611 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4613 if (status & MWL8K_A2H_INT_OPC_DONE) {
4614 if (priv->hostcmd_wait != NULL)
4615 complete(priv->hostcmd_wait);
4618 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
4619 if (!mutex_is_locked(&priv->fw_mutex) &&
4620 priv->radio_on && priv->pending_tx_pkts)
4621 mwl8k_tx_start(priv);
4627 static void mwl8k_tx_poll(unsigned long data)
4629 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4630 struct mwl8k_priv *priv = hw->priv;
4636 spin_lock_bh(&priv->tx_lock);
4638 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4639 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
4641 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
4642 complete(priv->tx_wait);
4643 priv->tx_wait = NULL;
4646 spin_unlock_bh(&priv->tx_lock);
4649 writel(~MWL8K_A2H_INT_TX_DONE,
4650 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4652 tasklet_schedule(&priv->poll_tx_task);
4656 static void mwl8k_rx_poll(unsigned long data)
4658 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4659 struct mwl8k_priv *priv = hw->priv;
4663 limit -= rxq_process(hw, 0, limit);
4664 limit -= rxq_refill(hw, 0, limit);
4667 writel(~MWL8K_A2H_INT_RX_READY,
4668 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4670 tasklet_schedule(&priv->poll_rx_task);
4676 * Core driver operations.
4678 static void mwl8k_tx(struct ieee80211_hw *hw,
4679 struct ieee80211_tx_control *control,
4680 struct sk_buff *skb)
4682 struct mwl8k_priv *priv = hw->priv;
4683 int index = skb_get_queue_mapping(skb);
4685 if (!priv->radio_on) {
4686 wiphy_debug(hw->wiphy,
4687 "dropped TX frame since radio disabled\n");
4692 mwl8k_txq_xmit(hw, index, control->sta, skb);
4695 static int mwl8k_start(struct ieee80211_hw *hw)
4697 struct mwl8k_priv *priv = hw->priv;
4700 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4701 IRQF_SHARED, MWL8K_NAME, hw);
4704 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4707 priv->irq = priv->pdev->irq;
4709 /* Enable TX reclaim and RX tasklets. */
4710 tasklet_enable(&priv->poll_tx_task);
4711 tasklet_enable(&priv->poll_rx_task);
4713 /* Enable interrupts */
4714 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4715 iowrite32(MWL8K_A2H_EVENTS,
4716 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4718 rc = mwl8k_fw_lock(hw);
4720 rc = mwl8k_cmd_radio_enable(hw);
4724 rc = mwl8k_cmd_enable_sniffer(hw, 0);
4727 rc = mwl8k_cmd_set_pre_scan(hw);
4730 rc = mwl8k_cmd_set_post_scan(hw,
4731 "\x00\x00\x00\x00\x00\x00");
4735 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
4738 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
4740 mwl8k_fw_unlock(hw);
4744 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4745 free_irq(priv->pdev->irq, hw);
4747 tasklet_disable(&priv->poll_tx_task);
4748 tasklet_disable(&priv->poll_rx_task);
4750 ieee80211_wake_queues(hw);
4756 static void mwl8k_stop(struct ieee80211_hw *hw)
4758 struct mwl8k_priv *priv = hw->priv;
4761 if (!priv->hw_restart_in_progress)
4762 mwl8k_cmd_radio_disable(hw);
4764 ieee80211_stop_queues(hw);
4766 /* Disable interrupts */
4767 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4768 if (priv->irq != -1) {
4769 free_irq(priv->pdev->irq, hw);
4773 /* Stop finalize join worker */
4774 cancel_work_sync(&priv->finalize_join_worker);
4775 cancel_work_sync(&priv->watchdog_ba_handle);
4776 if (priv->beacon_skb != NULL)
4777 dev_kfree_skb(priv->beacon_skb);
4779 /* Stop TX reclaim and RX tasklets. */
4780 tasklet_disable(&priv->poll_tx_task);
4781 tasklet_disable(&priv->poll_rx_task);
4783 /* Return all skbs to mac80211 */
4784 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4785 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4788 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
4790 static int mwl8k_add_interface(struct ieee80211_hw *hw,
4791 struct ieee80211_vif *vif)
4793 struct mwl8k_priv *priv = hw->priv;
4794 struct mwl8k_vif *mwl8k_vif;
4795 u32 macids_supported;
4797 struct mwl8k_device_info *di;
4800 * Reject interface creation if sniffer mode is active, as
4801 * STA operation is mutually exclusive with hardware sniffer
4802 * mode. (Sniffer mode is only used on STA firmware.)
4804 if (priv->sniffer_enabled) {
4805 wiphy_info(hw->wiphy,
4806 "unable to create STA interface because sniffer mode is enabled\n");
4810 di = priv->device_info;
4811 switch (vif->type) {
4812 case NL80211_IFTYPE_AP:
4813 if (!priv->ap_fw && di->fw_image_ap) {
4814 /* we must load the ap fw to meet this request */
4815 if (!list_empty(&priv->vif_list))
4817 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4821 macids_supported = priv->ap_macids_supported;
4823 case NL80211_IFTYPE_STATION:
4824 if (priv->ap_fw && di->fw_image_sta) {
4825 if (!list_empty(&priv->vif_list)) {
4826 wiphy_warn(hw->wiphy, "AP interface is running.\n"
4827 "Adding STA interface for WDS");
4829 /* we must load the sta fw to
4830 * meet this request.
4832 rc = mwl8k_reload_firmware(hw,
4838 macids_supported = priv->sta_macids_supported;
4844 macid = ffs(macids_supported & ~priv->macids_used);
4848 /* Setup driver private area. */
4849 mwl8k_vif = MWL8K_VIF(vif);
4850 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
4851 mwl8k_vif->vif = vif;
4852 mwl8k_vif->macid = macid;
4853 mwl8k_vif->seqno = 0;
4854 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
4855 mwl8k_vif->is_hw_crypto_enabled = false;
4857 /* Set the mac address. */
4858 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
4860 if (vif->type == NL80211_IFTYPE_AP)
4861 mwl8k_cmd_set_new_stn_add_self(hw, vif);
4863 priv->macids_used |= 1 << mwl8k_vif->macid;
4864 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
4869 static void mwl8k_remove_vif(struct mwl8k_priv *priv, struct mwl8k_vif *vif)
4871 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4872 if (!priv->macids_used)
4875 priv->macids_used &= ~(1 << vif->macid);
4876 list_del(&vif->list);
4879 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
4880 struct ieee80211_vif *vif)
4882 struct mwl8k_priv *priv = hw->priv;
4883 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4885 if (vif->type == NL80211_IFTYPE_AP)
4886 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
4888 mwl8k_cmd_del_mac_addr(hw, vif, vif->addr);
4890 mwl8k_remove_vif(priv, mwl8k_vif);
4893 static void mwl8k_hw_restart_work(struct work_struct *work)
4895 struct mwl8k_priv *priv =
4896 container_of(work, struct mwl8k_priv, fw_reload);
4897 struct ieee80211_hw *hw = priv->hw;
4898 struct mwl8k_device_info *di;
4901 /* If some command is waiting for a response, clear it */
4902 if (priv->hostcmd_wait != NULL) {
4903 complete(priv->hostcmd_wait);
4904 priv->hostcmd_wait = NULL;
4907 priv->hw_restart_owner = current;
4908 di = priv->device_info;
4912 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4914 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
4919 priv->hw_restart_owner = NULL;
4920 priv->hw_restart_in_progress = false;
4923 * This unlock will wake up the queues and
4924 * also opens the command path for other
4927 mwl8k_fw_unlock(hw);
4929 ieee80211_restart_hw(hw);
4931 wiphy_err(hw->wiphy, "Firmware restarted successfully\n");
4935 mwl8k_fw_unlock(hw);
4937 wiphy_err(hw->wiphy, "Firmware restart failed\n");
4940 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
4942 struct ieee80211_conf *conf = &hw->conf;
4943 struct mwl8k_priv *priv = hw->priv;
4946 rc = mwl8k_fw_lock(hw);
4950 if (conf->flags & IEEE80211_CONF_IDLE)
4951 rc = mwl8k_cmd_radio_disable(hw);
4953 rc = mwl8k_cmd_radio_enable(hw);
4957 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
4958 rc = mwl8k_cmd_set_rf_channel(hw, conf);
4963 if (conf->power_level > 18)
4964 conf->power_level = 18;
4968 if (conf->flags & IEEE80211_CONF_CHANGE_POWER) {
4969 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
4976 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
4979 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
4983 mwl8k_fw_unlock(hw);
4989 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4990 struct ieee80211_bss_conf *info, u32 changed)
4992 struct mwl8k_priv *priv = hw->priv;
4993 u32 ap_legacy_rates = 0;
4994 u8 ap_mcs_rates[16];
4997 if (mwl8k_fw_lock(hw))
5001 * No need to capture a beacon if we're no longer associated.
5003 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
5004 priv->capture_beacon = false;
5007 * Get the AP's legacy and MCS rates.
5009 if (vif->bss_conf.assoc) {
5010 struct ieee80211_sta *ap;
5014 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
5020 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ) {
5021 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
5024 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
5026 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
5031 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
5033 rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
5037 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
5041 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
5046 /* Use AP firmware specific rate command.
5048 idx = ffs(vif->bss_conf.basic_rates);
5052 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
5053 rate = mwl8k_rates_24[idx].hw_value;
5055 rate = mwl8k_rates_50[idx].hw_value;
5057 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
5061 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5062 rc = mwl8k_set_radio_preamble(hw,
5063 vif->bss_conf.use_short_preamble);
5068 if ((changed & BSS_CHANGED_ERP_SLOT) && !priv->ap_fw) {
5069 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
5074 if (vif->bss_conf.assoc && !priv->ap_fw &&
5075 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
5077 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
5082 if (vif->bss_conf.assoc &&
5083 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
5085 * Finalize the join. Tell rx handler to process
5086 * next beacon from our BSSID.
5088 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
5089 priv->capture_beacon = true;
5093 mwl8k_fw_unlock(hw);
5097 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5098 struct ieee80211_bss_conf *info, u32 changed)
5102 if (mwl8k_fw_lock(hw))
5105 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5106 rc = mwl8k_set_radio_preamble(hw,
5107 vif->bss_conf.use_short_preamble);
5112 if (changed & BSS_CHANGED_BASIC_RATES) {
5117 * Use lowest supported basic rate for multicasts
5118 * and management frames (such as probe responses --
5119 * beacons will always go out at 1 Mb/s).
5121 idx = ffs(vif->bss_conf.basic_rates);
5125 if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
5126 rate = mwl8k_rates_24[idx].hw_value;
5128 rate = mwl8k_rates_50[idx].hw_value;
5130 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
5133 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
5134 struct sk_buff *skb;
5136 skb = ieee80211_beacon_get(hw, vif);
5138 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
5143 if (changed & BSS_CHANGED_BEACON_ENABLED)
5144 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
5147 mwl8k_fw_unlock(hw);
5151 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5152 struct ieee80211_bss_conf *info, u32 changed)
5154 if (vif->type == NL80211_IFTYPE_STATION)
5155 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
5156 if (vif->type == NL80211_IFTYPE_AP)
5157 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
5160 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
5161 struct netdev_hw_addr_list *mc_list)
5163 struct mwl8k_cmd_pkt *cmd;
5166 * Synthesize and return a command packet that programs the
5167 * hardware multicast address filter. At this point we don't
5168 * know whether FIF_ALLMULTI is being requested, but if it is,
5169 * we'll end up throwing this packet away and creating a new
5170 * one in mwl8k_configure_filter().
5172 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
5174 return (unsigned long)cmd;
5178 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
5179 unsigned int changed_flags,
5180 unsigned int *total_flags)
5182 struct mwl8k_priv *priv = hw->priv;
5185 * Hardware sniffer mode is mutually exclusive with STA
5186 * operation, so refuse to enable sniffer mode if a STA
5187 * interface is active.
5189 if (!list_empty(&priv->vif_list)) {
5190 if (net_ratelimit())
5191 wiphy_info(hw->wiphy,
5192 "not enabling sniffer mode because STA interface is active\n");
5196 if (!priv->sniffer_enabled) {
5197 if (mwl8k_cmd_enable_sniffer(hw, 1))
5199 priv->sniffer_enabled = true;
5202 *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI |
5203 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
5209 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
5211 if (!list_empty(&priv->vif_list))
5212 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
5217 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
5218 unsigned int changed_flags,
5219 unsigned int *total_flags,
5222 struct mwl8k_priv *priv = hw->priv;
5223 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
5226 * AP firmware doesn't allow fine-grained control over
5227 * the receive filter.
5230 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5236 * Enable hardware sniffer mode if FIF_CONTROL or
5237 * FIF_OTHER_BSS is requested.
5239 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
5240 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
5245 /* Clear unsupported feature flags */
5246 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5248 if (mwl8k_fw_lock(hw)) {
5253 if (priv->sniffer_enabled) {
5254 mwl8k_cmd_enable_sniffer(hw, 0);
5255 priv->sniffer_enabled = false;
5258 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
5259 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
5261 * Disable the BSS filter.
5263 mwl8k_cmd_set_pre_scan(hw);
5265 struct mwl8k_vif *mwl8k_vif;
5269 * Enable the BSS filter.
5271 * If there is an active STA interface, use that
5272 * interface's BSSID, otherwise use a dummy one
5273 * (where the OUI part needs to be nonzero for
5274 * the BSSID to be accepted by POST_SCAN).
5276 mwl8k_vif = mwl8k_first_vif(priv);
5277 if (mwl8k_vif != NULL)
5278 bssid = mwl8k_vif->vif->bss_conf.bssid;
5280 bssid = "\x01\x00\x00\x00\x00\x00";
5282 mwl8k_cmd_set_post_scan(hw, bssid);
5287 * If FIF_ALLMULTI is being requested, throw away the command
5288 * packet that ->prepare_multicast() built and replace it with
5289 * a command packet that enables reception of all multicast
5292 if (*total_flags & FIF_ALLMULTI) {
5294 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
5298 mwl8k_post_cmd(hw, cmd);
5302 mwl8k_fw_unlock(hw);
5305 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
5307 return mwl8k_cmd_set_rts_threshold(hw, value);
5310 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
5311 struct ieee80211_vif *vif,
5312 struct ieee80211_sta *sta)
5314 struct mwl8k_priv *priv = hw->priv;
5317 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
5319 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
5322 static int mwl8k_sta_add(struct ieee80211_hw *hw,
5323 struct ieee80211_vif *vif,
5324 struct ieee80211_sta *sta)
5326 struct mwl8k_priv *priv = hw->priv;
5329 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
5330 struct ieee80211_key_conf *key;
5333 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
5335 MWL8K_STA(sta)->peer_id = ret;
5336 if (sta->ht_cap.ht_supported)
5337 MWL8K_STA(sta)->is_ampdu_allowed = true;
5342 ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
5345 for (i = 0; i < NUM_WEP_KEYS; i++) {
5346 key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key);
5347 if (mwl8k_vif->wep_key_conf[i].enabled)
5348 mwl8k_set_key(hw, SET_KEY, vif, sta, key);
5353 static int mwl8k_conf_tx(struct ieee80211_hw *hw,
5354 struct ieee80211_vif *vif, u16 queue,
5355 const struct ieee80211_tx_queue_params *params)
5357 struct mwl8k_priv *priv = hw->priv;
5360 rc = mwl8k_fw_lock(hw);
5362 BUG_ON(queue > MWL8K_TX_WMM_QUEUES - 1);
5363 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
5365 if (!priv->wmm_enabled)
5366 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
5369 int q = MWL8K_TX_WMM_QUEUES - 1 - queue;
5370 rc = mwl8k_cmd_set_edca_params(hw, q,
5377 mwl8k_fw_unlock(hw);
5383 static int mwl8k_get_stats(struct ieee80211_hw *hw,
5384 struct ieee80211_low_level_stats *stats)
5386 return mwl8k_cmd_get_stat(hw, stats);
5389 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
5390 struct survey_info *survey)
5392 struct mwl8k_priv *priv = hw->priv;
5393 struct ieee80211_conf *conf = &hw->conf;
5394 struct ieee80211_supported_band *sband;
5397 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
5399 if (sband && idx >= sband->n_channels) {
5400 idx -= sband->n_channels;
5405 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
5407 if (!sband || idx >= sband->n_channels)
5410 memcpy(survey, &priv->survey[idx], sizeof(*survey));
5411 survey->channel = &sband->channels[idx];
5419 survey->channel = conf->chandef.chan;
5420 survey->filled = SURVEY_INFO_NOISE_DBM;
5421 survey->noise = priv->noise;
5426 #define MAX_AMPDU_ATTEMPTS 5
5429 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5430 enum ieee80211_ampdu_mlme_action action,
5431 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
5436 struct mwl8k_priv *priv = hw->priv;
5437 struct mwl8k_ampdu_stream *stream;
5438 u8 *addr = sta->addr, idx;
5439 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
5441 if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
5444 spin_lock(&priv->stream_lock);
5445 stream = mwl8k_lookup_stream(hw, addr, tid);
5448 case IEEE80211_AMPDU_RX_START:
5449 case IEEE80211_AMPDU_RX_STOP:
5451 case IEEE80211_AMPDU_TX_START:
5452 /* By the time we get here the hw queues may contain outgoing
5453 * packets for this RA/TID that are not part of this BA
5454 * session. The hw will assign sequence numbers to these
5455 * packets as they go out. So if we query the hw for its next
5456 * sequence number and use that for the SSN here, it may end up
5457 * being wrong, which will lead to sequence number mismatch at
5458 * the recipient. To avoid this, we reset the sequence number
5459 * to O for the first MPDU in this BA stream.
5462 if (stream == NULL) {
5463 /* This means that somebody outside this driver called
5464 * ieee80211_start_tx_ba_session. This is unexpected
5465 * because we do our own rate control. Just warn and
5468 wiphy_warn(hw->wiphy, "Unexpected call to %s. "
5469 "Proceeding anyway.\n", __func__);
5470 stream = mwl8k_add_stream(hw, sta, tid);
5472 if (stream == NULL) {
5473 wiphy_debug(hw->wiphy, "no free AMPDU streams\n");
5477 stream->state = AMPDU_STREAM_IN_PROGRESS;
5479 /* Release the lock before we do the time consuming stuff */
5480 spin_unlock(&priv->stream_lock);
5481 for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) {
5483 /* Check if link is still valid */
5484 if (!sta_info->is_ampdu_allowed) {
5485 spin_lock(&priv->stream_lock);
5486 mwl8k_remove_stream(hw, stream);
5487 spin_unlock(&priv->stream_lock);
5491 rc = mwl8k_check_ba(hw, stream, vif);
5493 /* If HW restart is in progress mwl8k_post_cmd will
5494 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5497 if (!rc || rc == -EBUSY)
5500 * HW queues take time to be flushed, give them
5506 spin_lock(&priv->stream_lock);
5508 wiphy_err(hw->wiphy, "Stream for tid %d busy after %d"
5509 " attempts\n", tid, MAX_AMPDU_ATTEMPTS);
5510 mwl8k_remove_stream(hw, stream);
5514 ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
5516 case IEEE80211_AMPDU_TX_STOP_CONT:
5517 case IEEE80211_AMPDU_TX_STOP_FLUSH:
5518 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
5520 if (stream->state == AMPDU_STREAM_ACTIVE) {
5522 spin_unlock(&priv->stream_lock);
5523 mwl8k_destroy_ba(hw, idx);
5524 spin_lock(&priv->stream_lock);
5526 mwl8k_remove_stream(hw, stream);
5528 ieee80211_stop_tx_ba_cb_irqsafe(vif, addr, tid);
5530 case IEEE80211_AMPDU_TX_OPERATIONAL:
5531 BUG_ON(stream == NULL);
5532 BUG_ON(stream->state != AMPDU_STREAM_IN_PROGRESS);
5533 spin_unlock(&priv->stream_lock);
5534 rc = mwl8k_create_ba(hw, stream, buf_size, vif);
5535 spin_lock(&priv->stream_lock);
5537 stream->state = AMPDU_STREAM_ACTIVE;
5540 spin_unlock(&priv->stream_lock);
5541 mwl8k_destroy_ba(hw, idx);
5542 spin_lock(&priv->stream_lock);
5543 wiphy_debug(hw->wiphy,
5544 "Failed adding stream for sta %pM tid %d\n",
5546 mwl8k_remove_stream(hw, stream);
5554 spin_unlock(&priv->stream_lock);
5558 static void mwl8k_sw_scan_start(struct ieee80211_hw *hw)
5560 struct mwl8k_priv *priv = hw->priv;
5566 /* clear all stats */
5567 priv->channel_time = 0;
5568 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5569 ioread32(priv->regs + NOK_CCA_CNT_REG);
5570 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5572 priv->sw_scan_start = true;
5575 static void mwl8k_sw_scan_complete(struct ieee80211_hw *hw)
5577 struct mwl8k_priv *priv = hw->priv;
5583 priv->sw_scan_start = false;
5585 /* clear all stats */
5586 priv->channel_time = 0;
5587 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5588 ioread32(priv->regs + NOK_CCA_CNT_REG);
5589 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5592 static const struct ieee80211_ops mwl8k_ops = {
5594 .start = mwl8k_start,
5596 .add_interface = mwl8k_add_interface,
5597 .remove_interface = mwl8k_remove_interface,
5598 .config = mwl8k_config,
5599 .bss_info_changed = mwl8k_bss_info_changed,
5600 .prepare_multicast = mwl8k_prepare_multicast,
5601 .configure_filter = mwl8k_configure_filter,
5602 .set_key = mwl8k_set_key,
5603 .set_rts_threshold = mwl8k_set_rts_threshold,
5604 .sta_add = mwl8k_sta_add,
5605 .sta_remove = mwl8k_sta_remove,
5606 .conf_tx = mwl8k_conf_tx,
5607 .get_stats = mwl8k_get_stats,
5608 .get_survey = mwl8k_get_survey,
5609 .ampdu_action = mwl8k_ampdu_action,
5610 .sw_scan_start = mwl8k_sw_scan_start,
5611 .sw_scan_complete = mwl8k_sw_scan_complete,
5614 static void mwl8k_finalize_join_worker(struct work_struct *work)
5616 struct mwl8k_priv *priv =
5617 container_of(work, struct mwl8k_priv, finalize_join_worker);
5618 struct sk_buff *skb = priv->beacon_skb;
5619 struct ieee80211_mgmt *mgmt = (void *)skb->data;
5620 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
5621 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
5622 mgmt->u.beacon.variable, len);
5623 int dtim_period = 1;
5625 if (tim && tim[1] >= 2)
5626 dtim_period = tim[3];
5628 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
5631 priv->beacon_skb = NULL;
5641 #define MWL8K_8366_AP_FW_API 3
5642 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5643 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5645 #define MWL8K_8764_AP_FW_API 1
5646 #define _MWL8K_8764_AP_FW(api) "mwl8k/fmimage_8764_ap-" #api ".fw"
5647 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5649 static struct mwl8k_device_info mwl8k_info_tbl[] = {
5651 .part_name = "88w8363",
5652 .helper_image = "mwl8k/helper_8363.fw",
5653 .fw_image_sta = "mwl8k/fmimage_8363.fw",
5656 .part_name = "88w8687",
5657 .helper_image = "mwl8k/helper_8687.fw",
5658 .fw_image_sta = "mwl8k/fmimage_8687.fw",
5661 .part_name = "88w8366",
5662 .helper_image = "mwl8k/helper_8366.fw",
5663 .fw_image_sta = "mwl8k/fmimage_8366.fw",
5664 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
5665 .fw_api_ap = MWL8K_8366_AP_FW_API,
5666 .ap_rxd_ops = &rxd_ap_ops,
5669 .part_name = "88w8764",
5670 .fw_image_ap = MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API),
5671 .fw_api_ap = MWL8K_8764_AP_FW_API,
5672 .ap_rxd_ops = &rxd_ap_ops,
5676 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5677 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5678 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5679 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5680 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5681 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5682 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
5684 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
5685 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
5686 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
5687 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
5688 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
5689 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
5690 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
5691 { PCI_VDEVICE(MARVELL, 0x2a41), .driver_data = MWL8366, },
5692 { PCI_VDEVICE(MARVELL, 0x2a42), .driver_data = MWL8366, },
5693 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
5694 { PCI_VDEVICE(MARVELL, 0x2b36), .driver_data = MWL8764, },
5697 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
5699 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
5702 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
5703 "Trying alternative firmware %s\n", pci_name(priv->pdev),
5704 priv->fw_pref, priv->fw_alt);
5705 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
5707 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5708 pci_name(priv->pdev), priv->fw_alt);
5714 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
5715 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
5717 struct mwl8k_priv *priv = context;
5718 struct mwl8k_device_info *di = priv->device_info;
5721 switch (priv->fw_state) {
5724 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
5725 pci_name(priv->pdev), di->helper_image);
5728 priv->fw_helper = fw;
5729 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
5731 if (rc && priv->fw_alt) {
5732 rc = mwl8k_request_alt_fw(priv);
5735 priv->fw_state = FW_STATE_LOADING_ALT;
5739 priv->fw_state = FW_STATE_LOADING_PREF;
5742 case FW_STATE_LOADING_PREF:
5745 rc = mwl8k_request_alt_fw(priv);
5748 priv->fw_state = FW_STATE_LOADING_ALT;
5752 priv->fw_ucode = fw;
5753 rc = mwl8k_firmware_load_success(priv);
5757 complete(&priv->firmware_loading_complete);
5761 case FW_STATE_LOADING_ALT:
5763 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5764 pci_name(priv->pdev), di->helper_image);
5767 priv->fw_ucode = fw;
5768 rc = mwl8k_firmware_load_success(priv);
5772 complete(&priv->firmware_loading_complete);
5776 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
5777 MWL8K_NAME, priv->fw_state);
5784 priv->fw_state = FW_STATE_ERROR;
5785 complete(&priv->firmware_loading_complete);
5786 device_release_driver(&priv->pdev->dev);
5787 mwl8k_release_firmware(priv);
5790 #define MAX_RESTART_ATTEMPTS 1
5791 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
5794 struct mwl8k_priv *priv = hw->priv;
5796 int count = MAX_RESTART_ATTEMPTS;
5799 /* Reset firmware and hardware */
5800 mwl8k_hw_reset(priv);
5802 /* Ask userland hotplug daemon for the device firmware */
5803 rc = mwl8k_request_firmware(priv, fw_image, nowait);
5805 wiphy_err(hw->wiphy, "Firmware files not found\n");
5812 /* Load firmware into hardware */
5813 rc = mwl8k_load_firmware(hw);
5815 wiphy_err(hw->wiphy, "Cannot start firmware\n");
5817 /* Reclaim memory once firmware is successfully loaded */
5818 mwl8k_release_firmware(priv);
5821 /* FW did not start successfully;
5822 * lets try one more time
5825 wiphy_err(hw->wiphy, "Trying to reload the firmware again\n");
5833 static int mwl8k_init_txqs(struct ieee80211_hw *hw)
5835 struct mwl8k_priv *priv = hw->priv;
5839 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
5840 rc = mwl8k_txq_init(hw, i);
5844 iowrite32(priv->txq[i].txd_dma,
5845 priv->sram + priv->txq_offset[i]);
5850 /* initialize hw after successfully loading a firmware image */
5851 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
5853 struct mwl8k_priv *priv = hw->priv;
5858 priv->rxd_ops = priv->device_info->ap_rxd_ops;
5859 if (priv->rxd_ops == NULL) {
5860 wiphy_err(hw->wiphy,
5861 "Driver does not have AP firmware image support for this hardware\n");
5863 goto err_stop_firmware;
5866 priv->rxd_ops = &rxd_sta_ops;
5869 priv->sniffer_enabled = false;
5870 priv->wmm_enabled = false;
5871 priv->pending_tx_pkts = 0;
5872 atomic_set(&priv->watchdog_event_pending, 0);
5874 rc = mwl8k_rxq_init(hw, 0);
5876 goto err_stop_firmware;
5877 rxq_refill(hw, 0, INT_MAX);
5879 /* For the sta firmware, we need to know the dma addresses of tx queues
5880 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5881 * prior to issuing this command. But for the AP case, we learn the
5882 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5883 * case we must initialize the tx queues after.
5885 priv->num_ampdu_queues = 0;
5887 rc = mwl8k_init_txqs(hw);
5889 goto err_free_queues;
5892 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
5893 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5894 iowrite32(MWL8K_A2H_INT_TX_DONE|MWL8K_A2H_INT_RX_READY|
5895 MWL8K_A2H_INT_BA_WATCHDOG,
5896 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
5897 iowrite32(MWL8K_A2H_INT_OPC_DONE,
5898 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
5900 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
5901 IRQF_SHARED, MWL8K_NAME, hw);
5903 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
5904 goto err_free_queues;
5908 * When hw restart is requested,
5909 * mac80211 will take care of clearing
5910 * the ampdu streams, so do not clear
5911 * the ampdu state here
5913 if (!priv->hw_restart_in_progress)
5914 memset(priv->ampdu, 0, sizeof(priv->ampdu));
5917 * Temporarily enable interrupts. Initial firmware host
5918 * commands use interrupts and avoid polling. Disable
5919 * interrupts when done.
5921 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5923 /* Get config data, mac addrs etc */
5925 rc = mwl8k_cmd_get_hw_spec_ap(hw);
5927 rc = mwl8k_init_txqs(hw);
5929 rc = mwl8k_cmd_set_hw_spec(hw);
5931 rc = mwl8k_cmd_get_hw_spec_sta(hw);
5934 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
5938 /* Turn radio off */
5939 rc = mwl8k_cmd_radio_disable(hw);
5941 wiphy_err(hw->wiphy, "Cannot disable\n");
5945 /* Clear MAC address */
5946 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
5948 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
5952 /* Configure Antennas */
5953 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
5955 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
5956 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
5958 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
5961 /* Disable interrupts */
5962 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5963 free_irq(priv->pdev->irq, hw);
5965 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5966 priv->device_info->part_name,
5967 priv->hw_rev, hw->wiphy->perm_addr,
5968 priv->ap_fw ? "AP" : "STA",
5969 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
5970 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
5975 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5976 free_irq(priv->pdev->irq, hw);
5979 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5980 mwl8k_txq_deinit(hw, i);
5981 mwl8k_rxq_deinit(hw, 0);
5984 mwl8k_hw_reset(priv);
5990 * invoke mwl8k_reload_firmware to change the firmware image after the device
5991 * has already been registered
5993 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
5996 struct mwl8k_priv *priv = hw->priv;
5997 struct mwl8k_vif *vif, *tmp_vif;
6000 mwl8k_rxq_deinit(hw, 0);
6003 * All the existing interfaces are re-added by the ieee80211_reconfig;
6004 * which means driver should remove existing interfaces before calling
6005 * ieee80211_restart_hw
6007 if (priv->hw_restart_in_progress)
6008 list_for_each_entry_safe(vif, tmp_vif, &priv->vif_list, list)
6009 mwl8k_remove_vif(priv, vif);
6011 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6012 mwl8k_txq_deinit(hw, i);
6014 rc = mwl8k_init_firmware(hw, fw_image, false);
6018 rc = mwl8k_probe_hw(hw);
6022 if (priv->hw_restart_in_progress)
6025 rc = mwl8k_start(hw);
6029 rc = mwl8k_config(hw, ~0);
6033 for (i = 0; i < MWL8K_TX_WMM_QUEUES; i++) {
6034 rc = mwl8k_conf_tx(hw, NULL, i, &priv->wmm_params[i]);
6042 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
6046 static const struct ieee80211_iface_limit ap_if_limits[] = {
6047 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
6048 { .max = 1, .types = BIT(NL80211_IFTYPE_STATION) },
6051 static const struct ieee80211_iface_combination ap_if_comb = {
6052 .limits = ap_if_limits,
6053 .n_limits = ARRAY_SIZE(ap_if_limits),
6054 .max_interfaces = 8,
6055 .num_different_channels = 1,
6059 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
6061 struct ieee80211_hw *hw = priv->hw;
6064 rc = mwl8k_load_firmware(hw);
6065 mwl8k_release_firmware(priv);
6067 wiphy_err(hw->wiphy, "Cannot start firmware\n");
6072 * Extra headroom is the size of the required DMA header
6073 * minus the size of the smallest 802.11 frame (CTS frame).
6075 hw->extra_tx_headroom =
6076 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
6078 hw->extra_tx_headroom -= priv->ap_fw ? REDUCED_TX_HEADROOM : 0;
6080 hw->queues = MWL8K_TX_WMM_QUEUES;
6082 /* Set rssi values to dBm */
6083 hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_HAS_RATE_CONTROL;
6086 * Ask mac80211 to not to trigger PS mode
6087 * based on PM bit of incoming frames.
6090 hw->flags |= IEEE80211_HW_AP_LINK_PS;
6092 hw->vif_data_size = sizeof(struct mwl8k_vif);
6093 hw->sta_data_size = sizeof(struct mwl8k_sta);
6095 priv->macids_used = 0;
6096 INIT_LIST_HEAD(&priv->vif_list);
6098 /* Set default radio state and preamble */
6099 priv->radio_on = false;
6100 priv->radio_short_preamble = false;
6102 /* Finalize join worker */
6103 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
6104 /* Handle watchdog ba events */
6105 INIT_WORK(&priv->watchdog_ba_handle, mwl8k_watchdog_ba_events);
6106 /* To reload the firmware if it crashes */
6107 INIT_WORK(&priv->fw_reload, mwl8k_hw_restart_work);
6109 /* TX reclaim and RX tasklets. */
6110 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
6111 tasklet_disable(&priv->poll_tx_task);
6112 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
6113 tasklet_disable(&priv->poll_rx_task);
6115 /* Power management cookie */
6116 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
6117 if (priv->cookie == NULL)
6120 mutex_init(&priv->fw_mutex);
6121 priv->fw_mutex_owner = NULL;
6122 priv->fw_mutex_depth = 0;
6123 priv->hostcmd_wait = NULL;
6125 spin_lock_init(&priv->tx_lock);
6127 spin_lock_init(&priv->stream_lock);
6129 priv->tx_wait = NULL;
6131 rc = mwl8k_probe_hw(hw);
6133 goto err_free_cookie;
6135 hw->wiphy->interface_modes = 0;
6137 if (priv->ap_macids_supported || priv->device_info->fw_image_ap) {
6138 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
6139 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
6140 hw->wiphy->iface_combinations = &ap_if_comb;
6141 hw->wiphy->n_iface_combinations = 1;
6144 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
6145 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
6147 rc = ieee80211_register_hw(hw);
6149 wiphy_err(hw->wiphy, "Cannot register device\n");
6150 goto err_unprobe_hw;
6156 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6157 mwl8k_txq_deinit(hw, i);
6158 mwl8k_rxq_deinit(hw, 0);
6161 if (priv->cookie != NULL)
6162 pci_free_consistent(priv->pdev, 4,
6163 priv->cookie, priv->cookie_dma);
6167 static int mwl8k_probe(struct pci_dev *pdev,
6168 const struct pci_device_id *id)
6170 static int printed_version;
6171 struct ieee80211_hw *hw;
6172 struct mwl8k_priv *priv;
6173 struct mwl8k_device_info *di;
6176 if (!printed_version) {
6177 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
6178 printed_version = 1;
6182 rc = pci_enable_device(pdev);
6184 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
6189 rc = pci_request_regions(pdev, MWL8K_NAME);
6191 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
6193 goto err_disable_device;
6196 pci_set_master(pdev);
6199 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
6201 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
6206 SET_IEEE80211_DEV(hw, &pdev->dev);
6207 pci_set_drvdata(pdev, hw);
6212 priv->device_info = &mwl8k_info_tbl[id->driver_data];
6214 if (id->driver_data == MWL8764)
6215 priv->is_8764 = true;
6217 priv->sram = pci_iomap(pdev, 0, 0x10000);
6218 if (priv->sram == NULL) {
6219 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
6225 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
6226 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
6228 priv->regs = pci_iomap(pdev, 1, 0x10000);
6229 if (priv->regs == NULL) {
6230 priv->regs = pci_iomap(pdev, 2, 0x10000);
6231 if (priv->regs == NULL) {
6232 wiphy_err(hw->wiphy, "Cannot map device registers\n");
6239 * Choose the initial fw image depending on user input. If a second
6240 * image is available, make it the alternative image that will be
6241 * loaded if the first one fails.
6243 init_completion(&priv->firmware_loading_complete);
6244 di = priv->device_info;
6245 if (ap_mode_default && di->fw_image_ap) {
6246 priv->fw_pref = di->fw_image_ap;
6247 priv->fw_alt = di->fw_image_sta;
6248 } else if (!ap_mode_default && di->fw_image_sta) {
6249 priv->fw_pref = di->fw_image_sta;
6250 priv->fw_alt = di->fw_image_ap;
6251 } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
6252 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
6253 priv->fw_pref = di->fw_image_sta;
6254 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
6255 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
6256 priv->fw_pref = di->fw_image_ap;
6258 rc = mwl8k_init_firmware(hw, priv->fw_pref, true);
6260 goto err_stop_firmware;
6262 priv->hw_restart_in_progress = false;
6264 priv->running_bsses = 0;
6269 mwl8k_hw_reset(priv);
6272 if (priv->regs != NULL)
6273 pci_iounmap(pdev, priv->regs);
6275 if (priv->sram != NULL)
6276 pci_iounmap(pdev, priv->sram);
6278 ieee80211_free_hw(hw);
6281 pci_release_regions(pdev);
6284 pci_disable_device(pdev);
6289 static void mwl8k_remove(struct pci_dev *pdev)
6291 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
6292 struct mwl8k_priv *priv;
6299 wait_for_completion(&priv->firmware_loading_complete);
6301 if (priv->fw_state == FW_STATE_ERROR) {
6302 mwl8k_hw_reset(priv);
6306 ieee80211_stop_queues(hw);
6308 ieee80211_unregister_hw(hw);
6310 /* Remove TX reclaim and RX tasklets. */
6311 tasklet_kill(&priv->poll_tx_task);
6312 tasklet_kill(&priv->poll_rx_task);
6315 mwl8k_hw_reset(priv);
6317 /* Return all skbs to mac80211 */
6318 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6319 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
6321 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6322 mwl8k_txq_deinit(hw, i);
6324 mwl8k_rxq_deinit(hw, 0);
6326 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
6329 pci_iounmap(pdev, priv->regs);
6330 pci_iounmap(pdev, priv->sram);
6331 ieee80211_free_hw(hw);
6332 pci_release_regions(pdev);
6333 pci_disable_device(pdev);
6336 static struct pci_driver mwl8k_driver = {
6338 .id_table = mwl8k_pci_id_table,
6339 .probe = mwl8k_probe,
6340 .remove = mwl8k_remove,
6343 module_pci_driver(mwl8k_driver);
6345 MODULE_DESCRIPTION(MWL8K_DESC);
6346 MODULE_VERSION(MWL8K_VERSION);
6347 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
6348 MODULE_LICENSE("GPL");