2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/init.h>
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/sched.h>
17 #include <linux/spinlock.h>
18 #include <linux/list.h>
19 #include <linux/pci.h>
20 #include <linux/delay.h>
21 #include <linux/completion.h>
22 #include <linux/etherdevice.h>
23 #include <linux/slab.h>
24 #include <net/mac80211.h>
25 #include <linux/moduleparam.h>
26 #include <linux/firmware.h>
27 #include <linux/workqueue.h>
29 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
30 #define MWL8K_NAME KBUILD_MODNAME
31 #define MWL8K_VERSION "0.13"
33 /* Module parameters */
34 static bool ap_mode_default
;
35 module_param(ap_mode_default
, bool, 0);
36 MODULE_PARM_DESC(ap_mode_default
,
37 "Set to 1 to make ap mode the default instead of sta mode");
39 /* Register definitions */
40 #define MWL8K_HIU_GEN_PTR 0x00000c10
41 #define MWL8K_MODE_STA 0x0000005a
42 #define MWL8K_MODE_AP 0x000000a5
43 #define MWL8K_HIU_INT_CODE 0x00000c14
44 #define MWL8K_FWSTA_READY 0xf0f1f2f4
45 #define MWL8K_FWAP_READY 0xf1f2f4a5
46 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
47 #define MWL8K_HIU_SCRATCH 0x00000c40
49 /* Host->device communications */
50 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
51 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
52 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
53 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
54 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
55 #define MWL8K_H2A_INT_DUMMY (1 << 20)
56 #define MWL8K_H2A_INT_RESET (1 << 15)
57 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
58 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
60 /* Device->host communications */
61 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
62 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
63 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
64 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
65 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
66 #define MWL8K_A2H_INT_DUMMY (1 << 20)
67 #define MWL8K_A2H_INT_BA_WATCHDOG (1 << 14)
68 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
69 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
70 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
71 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
72 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
73 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
74 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
75 #define MWL8K_A2H_INT_RX_READY (1 << 1)
76 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
78 /* HW micro second timer register
79 * located at offset 0xA600. This
80 * will be used to timestamp tx
84 #define MWL8K_HW_TIMER_REGISTER 0x0000a600
86 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
87 MWL8K_A2H_INT_CHNL_SWITCHED | \
88 MWL8K_A2H_INT_QUEUE_EMPTY | \
89 MWL8K_A2H_INT_RADAR_DETECT | \
90 MWL8K_A2H_INT_RADIO_ON | \
91 MWL8K_A2H_INT_RADIO_OFF | \
92 MWL8K_A2H_INT_MAC_EVENT | \
93 MWL8K_A2H_INT_OPC_DONE | \
94 MWL8K_A2H_INT_RX_READY | \
95 MWL8K_A2H_INT_TX_DONE | \
96 MWL8K_A2H_INT_BA_WATCHDOG)
98 #define MWL8K_RX_QUEUES 1
99 #define MWL8K_TX_WMM_QUEUES 4
100 #define MWL8K_MAX_AMPDU_QUEUES 8
101 #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
102 #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
106 void (*rxd_init
)(void *rxd
, dma_addr_t next_dma_addr
);
107 void (*rxd_refill
)(void *rxd
, dma_addr_t addr
, int len
);
108 int (*rxd_process
)(void *rxd
, struct ieee80211_rx_status
*status
,
109 __le16
*qos
, s8
*noise
);
112 struct mwl8k_device_info
{
117 struct rxd_ops
*ap_rxd_ops
;
121 struct mwl8k_rx_queue
{
124 /* hw receives here */
127 /* refill descs here */
134 DEFINE_DMA_UNMAP_ADDR(dma
);
138 struct mwl8k_tx_queue
{
139 /* hw transmits here */
142 /* sw appends here */
146 struct mwl8k_tx_desc
*txd
;
148 struct sk_buff
**skb
;
154 AMPDU_STREAM_IN_PROGRESS
,
158 struct mwl8k_ampdu_stream
{
159 struct ieee80211_sta
*sta
;
163 u8 txq_idx
; /* index of this stream in priv->txq */
167 struct ieee80211_hw
*hw
;
168 struct pci_dev
*pdev
;
171 struct mwl8k_device_info
*device_info
;
177 const struct firmware
*fw_helper
;
178 const struct firmware
*fw_ucode
;
180 /* hardware/firmware parameters */
182 struct rxd_ops
*rxd_ops
;
183 struct ieee80211_supported_band band_24
;
184 struct ieee80211_channel channels_24
[14];
185 struct ieee80211_rate rates_24
[14];
186 struct ieee80211_supported_band band_50
;
187 struct ieee80211_channel channels_50
[4];
188 struct ieee80211_rate rates_50
[9];
189 u32 ap_macids_supported
;
190 u32 sta_macids_supported
;
192 /* Ampdu stream information */
194 spinlock_t stream_lock
;
195 struct mwl8k_ampdu_stream ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
196 struct work_struct watchdog_ba_handle
;
198 /* firmware access */
199 struct mutex fw_mutex
;
200 struct task_struct
*fw_mutex_owner
;
201 struct task_struct
*hw_restart_owner
;
203 struct completion
*hostcmd_wait
;
205 /* lock held over TX and TX reap */
208 /* TX quiesce completion, protected by fw_mutex and tx_lock */
209 struct completion
*tx_wait
;
211 /* List of interfaces. */
213 struct list_head vif_list
;
215 /* power management status cookie from firmware */
217 dma_addr_t cookie_dma
;
224 * Running count of TX packets in flight, to avoid
225 * iterating over the transmit rings each time.
229 struct mwl8k_rx_queue rxq
[MWL8K_RX_QUEUES
];
230 struct mwl8k_tx_queue txq
[MWL8K_MAX_TX_QUEUES
];
231 u32 txq_offset
[MWL8K_MAX_TX_QUEUES
];
234 bool radio_short_preamble
;
235 bool sniffer_enabled
;
238 /* XXX need to convert this to handle multiple interfaces */
240 u8 capture_bssid
[ETH_ALEN
];
241 struct sk_buff
*beacon_skb
;
244 * This FJ worker has to be global as it is scheduled from the
245 * RX handler. At this point we don't know which interface it
246 * belongs to until the list of bssids waiting to complete join
249 struct work_struct finalize_join_worker
;
251 /* Tasklet to perform TX reclaim. */
252 struct tasklet_struct poll_tx_task
;
254 /* Tasklet to perform RX. */
255 struct tasklet_struct poll_rx_task
;
257 /* Most recently reported noise in dBm */
261 * preserve the queue configurations so they can be restored if/when
262 * the firmware image is swapped.
264 struct ieee80211_tx_queue_params wmm_params
[MWL8K_TX_WMM_QUEUES
];
266 /* To perform the task of reloading the firmware */
267 struct work_struct fw_reload
;
268 bool hw_restart_in_progress
;
270 /* async firmware loading state */
274 struct completion firmware_loading_complete
;
277 #define MAX_WEP_KEY_LEN 13
278 #define NUM_WEP_KEYS 4
280 /* Per interface specific private data */
282 struct list_head list
;
283 struct ieee80211_vif
*vif
;
285 /* Firmware macid for this vif. */
288 /* Non AMPDU sequence number assigned by driver. */
294 u8 key
[sizeof(struct ieee80211_key_conf
) + MAX_WEP_KEY_LEN
];
295 } wep_key_conf
[NUM_WEP_KEYS
];
300 /* A flag to indicate is HW crypto is enabled for this bssid */
301 bool is_hw_crypto_enabled
;
303 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
304 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
306 struct tx_traffic_info
{
311 #define MWL8K_MAX_TID 8
313 /* Index into station database. Returned by UPDATE_STADB. */
316 struct tx_traffic_info tx_stats
[MWL8K_MAX_TID
];
318 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
320 static const struct ieee80211_channel mwl8k_channels_24
[] = {
321 { .center_freq
= 2412, .hw_value
= 1, },
322 { .center_freq
= 2417, .hw_value
= 2, },
323 { .center_freq
= 2422, .hw_value
= 3, },
324 { .center_freq
= 2427, .hw_value
= 4, },
325 { .center_freq
= 2432, .hw_value
= 5, },
326 { .center_freq
= 2437, .hw_value
= 6, },
327 { .center_freq
= 2442, .hw_value
= 7, },
328 { .center_freq
= 2447, .hw_value
= 8, },
329 { .center_freq
= 2452, .hw_value
= 9, },
330 { .center_freq
= 2457, .hw_value
= 10, },
331 { .center_freq
= 2462, .hw_value
= 11, },
332 { .center_freq
= 2467, .hw_value
= 12, },
333 { .center_freq
= 2472, .hw_value
= 13, },
334 { .center_freq
= 2484, .hw_value
= 14, },
337 static const struct ieee80211_rate mwl8k_rates_24
[] = {
338 { .bitrate
= 10, .hw_value
= 2, },
339 { .bitrate
= 20, .hw_value
= 4, },
340 { .bitrate
= 55, .hw_value
= 11, },
341 { .bitrate
= 110, .hw_value
= 22, },
342 { .bitrate
= 220, .hw_value
= 44, },
343 { .bitrate
= 60, .hw_value
= 12, },
344 { .bitrate
= 90, .hw_value
= 18, },
345 { .bitrate
= 120, .hw_value
= 24, },
346 { .bitrate
= 180, .hw_value
= 36, },
347 { .bitrate
= 240, .hw_value
= 48, },
348 { .bitrate
= 360, .hw_value
= 72, },
349 { .bitrate
= 480, .hw_value
= 96, },
350 { .bitrate
= 540, .hw_value
= 108, },
351 { .bitrate
= 720, .hw_value
= 144, },
354 static const struct ieee80211_channel mwl8k_channels_50
[] = {
355 { .center_freq
= 5180, .hw_value
= 36, },
356 { .center_freq
= 5200, .hw_value
= 40, },
357 { .center_freq
= 5220, .hw_value
= 44, },
358 { .center_freq
= 5240, .hw_value
= 48, },
361 static const struct ieee80211_rate mwl8k_rates_50
[] = {
362 { .bitrate
= 60, .hw_value
= 12, },
363 { .bitrate
= 90, .hw_value
= 18, },
364 { .bitrate
= 120, .hw_value
= 24, },
365 { .bitrate
= 180, .hw_value
= 36, },
366 { .bitrate
= 240, .hw_value
= 48, },
367 { .bitrate
= 360, .hw_value
= 72, },
368 { .bitrate
= 480, .hw_value
= 96, },
369 { .bitrate
= 540, .hw_value
= 108, },
370 { .bitrate
= 720, .hw_value
= 144, },
373 /* Set or get info from Firmware */
374 #define MWL8K_CMD_GET 0x0000
375 #define MWL8K_CMD_SET 0x0001
376 #define MWL8K_CMD_SET_LIST 0x0002
378 /* Firmware command codes */
379 #define MWL8K_CMD_CODE_DNLD 0x0001
380 #define MWL8K_CMD_GET_HW_SPEC 0x0003
381 #define MWL8K_CMD_SET_HW_SPEC 0x0004
382 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
383 #define MWL8K_CMD_GET_STAT 0x0014
384 #define MWL8K_CMD_RADIO_CONTROL 0x001c
385 #define MWL8K_CMD_RF_TX_POWER 0x001e
386 #define MWL8K_CMD_TX_POWER 0x001f
387 #define MWL8K_CMD_RF_ANTENNA 0x0020
388 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
389 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
390 #define MWL8K_CMD_SET_POST_SCAN 0x0108
391 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
392 #define MWL8K_CMD_SET_AID 0x010d
393 #define MWL8K_CMD_SET_RATE 0x0110
394 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
395 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
396 #define MWL8K_CMD_SET_SLOT 0x0114
397 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
398 #define MWL8K_CMD_SET_WMM_MODE 0x0123
399 #define MWL8K_CMD_MIMO_CONFIG 0x0125
400 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
401 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
402 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
403 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
404 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
405 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
406 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
407 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
408 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
409 #define MWL8K_CMD_UPDATE_STADB 0x1123
410 #define MWL8K_CMD_BASTREAM 0x1125
412 static const char *mwl8k_cmd_name(__le16 cmd
, char *buf
, int bufsize
)
414 u16 command
= le16_to_cpu(cmd
);
416 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
417 snprintf(buf, bufsize, "%s", #x);\
420 switch (command
& ~0x8000) {
421 MWL8K_CMDNAME(CODE_DNLD
);
422 MWL8K_CMDNAME(GET_HW_SPEC
);
423 MWL8K_CMDNAME(SET_HW_SPEC
);
424 MWL8K_CMDNAME(MAC_MULTICAST_ADR
);
425 MWL8K_CMDNAME(GET_STAT
);
426 MWL8K_CMDNAME(RADIO_CONTROL
);
427 MWL8K_CMDNAME(RF_TX_POWER
);
428 MWL8K_CMDNAME(TX_POWER
);
429 MWL8K_CMDNAME(RF_ANTENNA
);
430 MWL8K_CMDNAME(SET_BEACON
);
431 MWL8K_CMDNAME(SET_PRE_SCAN
);
432 MWL8K_CMDNAME(SET_POST_SCAN
);
433 MWL8K_CMDNAME(SET_RF_CHANNEL
);
434 MWL8K_CMDNAME(SET_AID
);
435 MWL8K_CMDNAME(SET_RATE
);
436 MWL8K_CMDNAME(SET_FINALIZE_JOIN
);
437 MWL8K_CMDNAME(RTS_THRESHOLD
);
438 MWL8K_CMDNAME(SET_SLOT
);
439 MWL8K_CMDNAME(SET_EDCA_PARAMS
);
440 MWL8K_CMDNAME(SET_WMM_MODE
);
441 MWL8K_CMDNAME(MIMO_CONFIG
);
442 MWL8K_CMDNAME(USE_FIXED_RATE
);
443 MWL8K_CMDNAME(ENABLE_SNIFFER
);
444 MWL8K_CMDNAME(SET_MAC_ADDR
);
445 MWL8K_CMDNAME(SET_RATEADAPT_MODE
);
446 MWL8K_CMDNAME(BSS_START
);
447 MWL8K_CMDNAME(SET_NEW_STN
);
448 MWL8K_CMDNAME(UPDATE_ENCRYPTION
);
449 MWL8K_CMDNAME(UPDATE_STADB
);
450 MWL8K_CMDNAME(BASTREAM
);
451 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP
);
453 snprintf(buf
, bufsize
, "0x%x", cmd
);
460 /* Hardware and firmware reset */
461 static void mwl8k_hw_reset(struct mwl8k_priv
*priv
)
463 iowrite32(MWL8K_H2A_INT_RESET
,
464 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
465 iowrite32(MWL8K_H2A_INT_RESET
,
466 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
470 /* Release fw image */
471 static void mwl8k_release_fw(const struct firmware
**fw
)
475 release_firmware(*fw
);
479 static void mwl8k_release_firmware(struct mwl8k_priv
*priv
)
481 mwl8k_release_fw(&priv
->fw_ucode
);
482 mwl8k_release_fw(&priv
->fw_helper
);
485 /* states for asynchronous f/w loading */
486 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
);
489 FW_STATE_LOADING_PREF
,
490 FW_STATE_LOADING_ALT
,
494 /* Request fw image */
495 static int mwl8k_request_fw(struct mwl8k_priv
*priv
,
496 const char *fname
, const struct firmware
**fw
,
499 /* release current image */
501 mwl8k_release_fw(fw
);
504 return request_firmware_nowait(THIS_MODULE
, 1, fname
,
505 &priv
->pdev
->dev
, GFP_KERNEL
,
506 priv
, mwl8k_fw_state_machine
);
508 return request_firmware(fw
, fname
, &priv
->pdev
->dev
);
511 static int mwl8k_request_firmware(struct mwl8k_priv
*priv
, char *fw_image
,
514 struct mwl8k_device_info
*di
= priv
->device_info
;
517 if (di
->helper_image
!= NULL
) {
519 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
520 &priv
->fw_helper
, true);
522 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
523 &priv
->fw_helper
, false);
525 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
526 pci_name(priv
->pdev
), di
->helper_image
);
534 * if we get here, no helper image is needed. Skip the
535 * FW_STATE_INIT state.
537 priv
->fw_state
= FW_STATE_LOADING_PREF
;
538 rc
= mwl8k_request_fw(priv
, fw_image
,
542 rc
= mwl8k_request_fw(priv
, fw_image
,
543 &priv
->fw_ucode
, false);
545 printk(KERN_ERR
"%s: Error requesting firmware file %s\n",
546 pci_name(priv
->pdev
), fw_image
);
547 mwl8k_release_fw(&priv
->fw_helper
);
554 struct mwl8k_cmd_pkt
{
567 mwl8k_send_fw_load_cmd(struct mwl8k_priv
*priv
, void *data
, int length
)
569 void __iomem
*regs
= priv
->regs
;
573 dma_addr
= pci_map_single(priv
->pdev
, data
, length
, PCI_DMA_TODEVICE
);
574 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
577 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
578 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
579 iowrite32(MWL8K_H2A_INT_DOORBELL
,
580 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
581 iowrite32(MWL8K_H2A_INT_DUMMY
,
582 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
588 int_code
= ioread32(regs
+ MWL8K_HIU_INT_CODE
);
589 if (int_code
== MWL8K_INT_CODE_CMD_FINISHED
) {
590 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
598 pci_unmap_single(priv
->pdev
, dma_addr
, length
, PCI_DMA_TODEVICE
);
600 return loops
? 0 : -ETIMEDOUT
;
603 static int mwl8k_load_fw_image(struct mwl8k_priv
*priv
,
604 const u8
*data
, size_t length
)
606 struct mwl8k_cmd_pkt
*cmd
;
610 cmd
= kmalloc(sizeof(*cmd
) + 256, GFP_KERNEL
);
614 cmd
->code
= cpu_to_le16(MWL8K_CMD_CODE_DNLD
);
621 int block_size
= length
> 256 ? 256 : length
;
623 memcpy(cmd
->payload
, data
+ done
, block_size
);
624 cmd
->length
= cpu_to_le16(block_size
);
626 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
,
627 sizeof(*cmd
) + block_size
);
632 length
-= block_size
;
637 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
, sizeof(*cmd
));
645 static int mwl8k_feed_fw_image(struct mwl8k_priv
*priv
,
646 const u8
*data
, size_t length
)
648 unsigned char *buffer
;
649 int may_continue
, rc
= 0;
650 u32 done
, prev_block_size
;
652 buffer
= kmalloc(1024, GFP_KERNEL
);
659 while (may_continue
> 0) {
662 block_size
= ioread32(priv
->regs
+ MWL8K_HIU_SCRATCH
);
663 if (block_size
& 1) {
667 done
+= prev_block_size
;
668 length
-= prev_block_size
;
671 if (block_size
> 1024 || block_size
> length
) {
681 if (block_size
== 0) {
688 prev_block_size
= block_size
;
689 memcpy(buffer
, data
+ done
, block_size
);
691 rc
= mwl8k_send_fw_load_cmd(priv
, buffer
, block_size
);
696 if (!rc
&& length
!= 0)
704 static int mwl8k_load_firmware(struct ieee80211_hw
*hw
)
706 struct mwl8k_priv
*priv
= hw
->priv
;
707 const struct firmware
*fw
= priv
->fw_ucode
;
711 if (!memcmp(fw
->data
, "\x01\x00\x00\x00", 4)) {
712 const struct firmware
*helper
= priv
->fw_helper
;
714 if (helper
== NULL
) {
715 printk(KERN_ERR
"%s: helper image needed but none "
716 "given\n", pci_name(priv
->pdev
));
720 rc
= mwl8k_load_fw_image(priv
, helper
->data
, helper
->size
);
722 printk(KERN_ERR
"%s: unable to load firmware "
723 "helper image\n", pci_name(priv
->pdev
));
728 rc
= mwl8k_feed_fw_image(priv
, fw
->data
, fw
->size
);
730 rc
= mwl8k_load_fw_image(priv
, fw
->data
, fw
->size
);
734 printk(KERN_ERR
"%s: unable to load firmware image\n",
735 pci_name(priv
->pdev
));
739 iowrite32(MWL8K_MODE_STA
, priv
->regs
+ MWL8K_HIU_GEN_PTR
);
745 ready_code
= ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
746 if (ready_code
== MWL8K_FWAP_READY
) {
749 } else if (ready_code
== MWL8K_FWSTA_READY
) {
758 return loops
? 0 : -ETIMEDOUT
;
762 /* DMA header used by firmware and hardware. */
763 struct mwl8k_dma_data
{
765 struct ieee80211_hdr wh
;
769 /* Routines to add/remove DMA header from skb. */
770 static inline void mwl8k_remove_dma_header(struct sk_buff
*skb
, __le16 qos
)
772 struct mwl8k_dma_data
*tr
;
775 tr
= (struct mwl8k_dma_data
*)skb
->data
;
776 hdrlen
= ieee80211_hdrlen(tr
->wh
.frame_control
);
778 if (hdrlen
!= sizeof(tr
->wh
)) {
779 if (ieee80211_is_data_qos(tr
->wh
.frame_control
)) {
780 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
- 2);
781 *((__le16
*)(tr
->data
- 2)) = qos
;
783 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
);
787 if (hdrlen
!= sizeof(*tr
))
788 skb_pull(skb
, sizeof(*tr
) - hdrlen
);
791 #define REDUCED_TX_HEADROOM 8
794 mwl8k_add_dma_header(struct mwl8k_priv
*priv
, struct sk_buff
*skb
,
795 int head_pad
, int tail_pad
)
797 struct ieee80211_hdr
*wh
;
800 struct mwl8k_dma_data
*tr
;
803 * Add a firmware DMA header; the firmware requires that we
804 * present a 2-byte payload length followed by a 4-address
805 * header (without QoS field), followed (optionally) by any
806 * WEP/ExtIV header (but only filled in for CCMP).
808 wh
= (struct ieee80211_hdr
*)skb
->data
;
810 hdrlen
= ieee80211_hdrlen(wh
->frame_control
);
813 * Check if skb_resize is required because of
814 * tx_headroom adjustment.
816 if (priv
->ap_fw
&& (hdrlen
< (sizeof(struct ieee80211_cts
)
817 + REDUCED_TX_HEADROOM
))) {
818 if (pskb_expand_head(skb
, REDUCED_TX_HEADROOM
, 0, GFP_ATOMIC
)) {
820 wiphy_err(priv
->hw
->wiphy
,
821 "Failed to reallocate TX buffer\n");
824 skb
->truesize
+= REDUCED_TX_HEADROOM
;
827 reqd_hdrlen
= sizeof(*tr
) + head_pad
;
829 if (hdrlen
!= reqd_hdrlen
)
830 skb_push(skb
, reqd_hdrlen
- hdrlen
);
832 if (ieee80211_is_data_qos(wh
->frame_control
))
833 hdrlen
-= IEEE80211_QOS_CTL_LEN
;
835 tr
= (struct mwl8k_dma_data
*)skb
->data
;
837 memmove(&tr
->wh
, wh
, hdrlen
);
838 if (hdrlen
!= sizeof(tr
->wh
))
839 memset(((void *)&tr
->wh
) + hdrlen
, 0, sizeof(tr
->wh
) - hdrlen
);
842 * Firmware length is the length of the fully formed "802.11
843 * payload". That is, everything except for the 802.11 header.
844 * This includes all crypto material including the MIC.
846 tr
->fwlen
= cpu_to_le16(skb
->len
- sizeof(*tr
) + tail_pad
);
849 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv
*priv
,
852 struct ieee80211_hdr
*wh
;
853 struct ieee80211_tx_info
*tx_info
;
854 struct ieee80211_key_conf
*key_conf
;
858 wh
= (struct ieee80211_hdr
*)skb
->data
;
860 tx_info
= IEEE80211_SKB_CB(skb
);
863 if (ieee80211_is_data(wh
->frame_control
))
864 key_conf
= tx_info
->control
.hw_key
;
867 * Make sure the packet header is in the DMA header format (4-address
868 * without QoS), and add head & tail padding when HW crypto is enabled.
870 * We have the following trailer padding requirements:
871 * - WEP: 4 trailer bytes (ICV)
872 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
873 * - CCMP: 8 trailer bytes (MIC)
876 if (key_conf
!= NULL
) {
877 head_pad
= key_conf
->iv_len
;
878 switch (key_conf
->cipher
) {
879 case WLAN_CIPHER_SUITE_WEP40
:
880 case WLAN_CIPHER_SUITE_WEP104
:
883 case WLAN_CIPHER_SUITE_TKIP
:
886 case WLAN_CIPHER_SUITE_CCMP
:
891 mwl8k_add_dma_header(priv
, skb
, head_pad
, data_pad
);
895 * Packet reception for 88w8366 AP firmware.
897 struct mwl8k_rxd_8366_ap
{
901 __le32 pkt_phys_addr
;
902 __le32 next_rxd_phys_addr
;
906 __le32 hw_noise_floor_info
;
915 #define MWL8K_8366_AP_RATE_INFO_MCS_FORMAT 0x80
916 #define MWL8K_8366_AP_RATE_INFO_40MHZ 0x40
917 #define MWL8K_8366_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
919 #define MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST 0x80
921 /* 8366 AP rx_status bits */
922 #define MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
923 #define MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
924 #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
925 #define MWL8K_8366_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
926 #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
928 static void mwl8k_rxd_8366_ap_init(void *_rxd
, dma_addr_t next_dma_addr
)
930 struct mwl8k_rxd_8366_ap
*rxd
= _rxd
;
932 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
933 rxd
->rx_ctrl
= MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST
;
936 static void mwl8k_rxd_8366_ap_refill(void *_rxd
, dma_addr_t addr
, int len
)
938 struct mwl8k_rxd_8366_ap
*rxd
= _rxd
;
940 rxd
->pkt_len
= cpu_to_le16(len
);
941 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
947 mwl8k_rxd_8366_ap_process(void *_rxd
, struct ieee80211_rx_status
*status
,
948 __le16
*qos
, s8
*noise
)
950 struct mwl8k_rxd_8366_ap
*rxd
= _rxd
;
952 if (!(rxd
->rx_ctrl
& MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST
))
956 memset(status
, 0, sizeof(*status
));
958 status
->signal
= -rxd
->rssi
;
959 *noise
= -rxd
->noise_floor
;
961 if (rxd
->rate
& MWL8K_8366_AP_RATE_INFO_MCS_FORMAT
) {
962 status
->flag
|= RX_FLAG_HT
;
963 if (rxd
->rate
& MWL8K_8366_AP_RATE_INFO_40MHZ
)
964 status
->flag
|= RX_FLAG_40MHZ
;
965 status
->rate_idx
= MWL8K_8366_AP_RATE_INFO_RATEID(rxd
->rate
);
969 for (i
= 0; i
< ARRAY_SIZE(mwl8k_rates_24
); i
++) {
970 if (mwl8k_rates_24
[i
].hw_value
== rxd
->rate
) {
971 status
->rate_idx
= i
;
977 if (rxd
->channel
> 14) {
978 status
->band
= IEEE80211_BAND_5GHZ
;
979 if (!(status
->flag
& RX_FLAG_HT
))
980 status
->rate_idx
-= 5;
982 status
->band
= IEEE80211_BAND_2GHZ
;
984 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
987 *qos
= rxd
->qos_control
;
989 if ((rxd
->rx_status
!= MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR
) &&
990 (rxd
->rx_status
& MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK
) &&
991 (rxd
->rx_status
& MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR
))
992 status
->flag
|= RX_FLAG_MMIC_ERROR
;
994 return le16_to_cpu(rxd
->pkt_len
);
997 static struct rxd_ops rxd_8366_ap_ops
= {
998 .rxd_size
= sizeof(struct mwl8k_rxd_8366_ap
),
999 .rxd_init
= mwl8k_rxd_8366_ap_init
,
1000 .rxd_refill
= mwl8k_rxd_8366_ap_refill
,
1001 .rxd_process
= mwl8k_rxd_8366_ap_process
,
1005 * Packet reception for STA firmware.
1007 struct mwl8k_rxd_sta
{
1011 __le32 pkt_phys_addr
;
1012 __le32 next_rxd_phys_addr
;
1024 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1025 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1026 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1027 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1028 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1029 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1031 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1032 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1033 /* ICV=0 or MIC=1 */
1034 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1035 /* Key is uploaded only in failure case */
1036 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1038 static void mwl8k_rxd_sta_init(void *_rxd
, dma_addr_t next_dma_addr
)
1040 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1042 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
1043 rxd
->rx_ctrl
= MWL8K_STA_RX_CTRL_OWNED_BY_HOST
;
1046 static void mwl8k_rxd_sta_refill(void *_rxd
, dma_addr_t addr
, int len
)
1048 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1050 rxd
->pkt_len
= cpu_to_le16(len
);
1051 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
1057 mwl8k_rxd_sta_process(void *_rxd
, struct ieee80211_rx_status
*status
,
1058 __le16
*qos
, s8
*noise
)
1060 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1063 if (!(rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_OWNED_BY_HOST
))
1067 rate_info
= le16_to_cpu(rxd
->rate_info
);
1069 memset(status
, 0, sizeof(*status
));
1071 status
->signal
= -rxd
->rssi
;
1072 *noise
= -rxd
->noise_level
;
1073 status
->antenna
= MWL8K_STA_RATE_INFO_ANTSELECT(rate_info
);
1074 status
->rate_idx
= MWL8K_STA_RATE_INFO_RATEID(rate_info
);
1076 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTPRE
)
1077 status
->flag
|= RX_FLAG_SHORTPRE
;
1078 if (rate_info
& MWL8K_STA_RATE_INFO_40MHZ
)
1079 status
->flag
|= RX_FLAG_40MHZ
;
1080 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTGI
)
1081 status
->flag
|= RX_FLAG_SHORT_GI
;
1082 if (rate_info
& MWL8K_STA_RATE_INFO_MCS_FORMAT
)
1083 status
->flag
|= RX_FLAG_HT
;
1085 if (rxd
->channel
> 14) {
1086 status
->band
= IEEE80211_BAND_5GHZ
;
1087 if (!(status
->flag
& RX_FLAG_HT
))
1088 status
->rate_idx
-= 5;
1090 status
->band
= IEEE80211_BAND_2GHZ
;
1092 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
1095 *qos
= rxd
->qos_control
;
1096 if ((rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DECRYPT_ERROR
) &&
1097 (rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DEC_ERR_TYPE
))
1098 status
->flag
|= RX_FLAG_MMIC_ERROR
;
1100 return le16_to_cpu(rxd
->pkt_len
);
1103 static struct rxd_ops rxd_sta_ops
= {
1104 .rxd_size
= sizeof(struct mwl8k_rxd_sta
),
1105 .rxd_init
= mwl8k_rxd_sta_init
,
1106 .rxd_refill
= mwl8k_rxd_sta_refill
,
1107 .rxd_process
= mwl8k_rxd_sta_process
,
1111 #define MWL8K_RX_DESCS 256
1112 #define MWL8K_RX_MAXSZ 3800
1114 static int mwl8k_rxq_init(struct ieee80211_hw
*hw
, int index
)
1116 struct mwl8k_priv
*priv
= hw
->priv
;
1117 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1125 size
= MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
;
1127 rxq
->rxd
= pci_alloc_consistent(priv
->pdev
, size
, &rxq
->rxd_dma
);
1128 if (rxq
->rxd
== NULL
) {
1129 wiphy_err(hw
->wiphy
, "failed to alloc RX descriptors\n");
1132 memset(rxq
->rxd
, 0, size
);
1134 rxq
->buf
= kcalloc(MWL8K_RX_DESCS
, sizeof(*rxq
->buf
), GFP_KERNEL
);
1135 if (rxq
->buf
== NULL
) {
1136 wiphy_err(hw
->wiphy
, "failed to alloc RX skbuff list\n");
1137 pci_free_consistent(priv
->pdev
, size
, rxq
->rxd
, rxq
->rxd_dma
);
1141 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1145 dma_addr_t next_dma_addr
;
1147 desc_size
= priv
->rxd_ops
->rxd_size
;
1148 rxd
= rxq
->rxd
+ (i
* priv
->rxd_ops
->rxd_size
);
1151 if (nexti
== MWL8K_RX_DESCS
)
1153 next_dma_addr
= rxq
->rxd_dma
+ (nexti
* desc_size
);
1155 priv
->rxd_ops
->rxd_init(rxd
, next_dma_addr
);
1161 static int rxq_refill(struct ieee80211_hw
*hw
, int index
, int limit
)
1163 struct mwl8k_priv
*priv
= hw
->priv
;
1164 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1168 while (rxq
->rxd_count
< MWL8K_RX_DESCS
&& limit
--) {
1169 struct sk_buff
*skb
;
1174 skb
= dev_alloc_skb(MWL8K_RX_MAXSZ
);
1178 addr
= pci_map_single(priv
->pdev
, skb
->data
,
1179 MWL8K_RX_MAXSZ
, DMA_FROM_DEVICE
);
1183 if (rxq
->tail
== MWL8K_RX_DESCS
)
1185 rxq
->buf
[rx
].skb
= skb
;
1186 dma_unmap_addr_set(&rxq
->buf
[rx
], dma
, addr
);
1188 rxd
= rxq
->rxd
+ (rx
* priv
->rxd_ops
->rxd_size
);
1189 priv
->rxd_ops
->rxd_refill(rxd
, addr
, MWL8K_RX_MAXSZ
);
1197 /* Must be called only when the card's reception is completely halted */
1198 static void mwl8k_rxq_deinit(struct ieee80211_hw
*hw
, int index
)
1200 struct mwl8k_priv
*priv
= hw
->priv
;
1201 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1204 if (rxq
->rxd
== NULL
)
1207 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1208 if (rxq
->buf
[i
].skb
!= NULL
) {
1209 pci_unmap_single(priv
->pdev
,
1210 dma_unmap_addr(&rxq
->buf
[i
], dma
),
1211 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1212 dma_unmap_addr_set(&rxq
->buf
[i
], dma
, 0);
1214 kfree_skb(rxq
->buf
[i
].skb
);
1215 rxq
->buf
[i
].skb
= NULL
;
1222 pci_free_consistent(priv
->pdev
,
1223 MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
,
1224 rxq
->rxd
, rxq
->rxd_dma
);
1230 * Scan a list of BSSIDs to process for finalize join.
1231 * Allows for extension to process multiple BSSIDs.
1234 mwl8k_capture_bssid(struct mwl8k_priv
*priv
, struct ieee80211_hdr
*wh
)
1236 return priv
->capture_beacon
&&
1237 ieee80211_is_beacon(wh
->frame_control
) &&
1238 ether_addr_equal(wh
->addr3
, priv
->capture_bssid
);
1241 static inline void mwl8k_save_beacon(struct ieee80211_hw
*hw
,
1242 struct sk_buff
*skb
)
1244 struct mwl8k_priv
*priv
= hw
->priv
;
1246 priv
->capture_beacon
= false;
1247 memset(priv
->capture_bssid
, 0, ETH_ALEN
);
1250 * Use GFP_ATOMIC as rxq_process is called from
1251 * the primary interrupt handler, memory allocation call
1254 priv
->beacon_skb
= skb_copy(skb
, GFP_ATOMIC
);
1255 if (priv
->beacon_skb
!= NULL
)
1256 ieee80211_queue_work(hw
, &priv
->finalize_join_worker
);
1259 static inline struct mwl8k_vif
*mwl8k_find_vif_bss(struct list_head
*vif_list
,
1262 struct mwl8k_vif
*mwl8k_vif
;
1264 list_for_each_entry(mwl8k_vif
,
1266 if (memcmp(bssid
, mwl8k_vif
->bssid
,
1274 static int rxq_process(struct ieee80211_hw
*hw
, int index
, int limit
)
1276 struct mwl8k_priv
*priv
= hw
->priv
;
1277 struct mwl8k_vif
*mwl8k_vif
= NULL
;
1278 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1282 while (rxq
->rxd_count
&& limit
--) {
1283 struct sk_buff
*skb
;
1286 struct ieee80211_rx_status status
;
1287 struct ieee80211_hdr
*wh
;
1290 skb
= rxq
->buf
[rxq
->head
].skb
;
1294 rxd
= rxq
->rxd
+ (rxq
->head
* priv
->rxd_ops
->rxd_size
);
1296 pkt_len
= priv
->rxd_ops
->rxd_process(rxd
, &status
, &qos
,
1301 rxq
->buf
[rxq
->head
].skb
= NULL
;
1303 pci_unmap_single(priv
->pdev
,
1304 dma_unmap_addr(&rxq
->buf
[rxq
->head
], dma
),
1305 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1306 dma_unmap_addr_set(&rxq
->buf
[rxq
->head
], dma
, 0);
1309 if (rxq
->head
== MWL8K_RX_DESCS
)
1314 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1317 * Check for a pending join operation. Save a
1318 * copy of the beacon and schedule a tasklet to
1319 * send a FINALIZE_JOIN command to the firmware.
1321 if (mwl8k_capture_bssid(priv
, (void *)skb
->data
))
1322 mwl8k_save_beacon(hw
, skb
);
1324 if (ieee80211_has_protected(wh
->frame_control
)) {
1326 /* Check if hw crypto has been enabled for
1327 * this bss. If yes, set the status flags
1330 mwl8k_vif
= mwl8k_find_vif_bss(&priv
->vif_list
,
1333 if (mwl8k_vif
!= NULL
&&
1334 mwl8k_vif
->is_hw_crypto_enabled
) {
1336 * When MMIC ERROR is encountered
1337 * by the firmware, payload is
1338 * dropped and only 32 bytes of
1339 * mwl8k Firmware header is sent
1342 * We need to add four bytes of
1343 * key information. In it
1344 * MAC80211 expects keyidx set to
1345 * 0 for triggering Counter
1346 * Measure of MMIC failure.
1348 if (status
.flag
& RX_FLAG_MMIC_ERROR
) {
1349 struct mwl8k_dma_data
*tr
;
1350 tr
= (struct mwl8k_dma_data
*)skb
->data
;
1351 memset((void *)&(tr
->data
), 0, 4);
1355 if (!ieee80211_is_auth(wh
->frame_control
))
1356 status
.flag
|= RX_FLAG_IV_STRIPPED
|
1358 RX_FLAG_MMIC_STRIPPED
;
1362 skb_put(skb
, pkt_len
);
1363 mwl8k_remove_dma_header(skb
, qos
);
1364 memcpy(IEEE80211_SKB_RXCB(skb
), &status
, sizeof(status
));
1365 ieee80211_rx_irqsafe(hw
, skb
);
1375 * Packet transmission.
1378 #define MWL8K_TXD_STATUS_OK 0x00000001
1379 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1380 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1381 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1382 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1384 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1385 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1386 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1387 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1388 #define MWL8K_QOS_EOSP 0x0010
1390 struct mwl8k_tx_desc
{
1395 __le32 pkt_phys_addr
;
1397 __u8 dest_MAC_addr
[ETH_ALEN
];
1398 __le32 next_txd_phys_addr
;
1405 #define MWL8K_TX_DESCS 128
1407 static int mwl8k_txq_init(struct ieee80211_hw
*hw
, int index
)
1409 struct mwl8k_priv
*priv
= hw
->priv
;
1410 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1418 size
= MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
);
1420 txq
->txd
= pci_alloc_consistent(priv
->pdev
, size
, &txq
->txd_dma
);
1421 if (txq
->txd
== NULL
) {
1422 wiphy_err(hw
->wiphy
, "failed to alloc TX descriptors\n");
1425 memset(txq
->txd
, 0, size
);
1427 txq
->skb
= kcalloc(MWL8K_TX_DESCS
, sizeof(*txq
->skb
), GFP_KERNEL
);
1428 if (txq
->skb
== NULL
) {
1429 wiphy_err(hw
->wiphy
, "failed to alloc TX skbuff list\n");
1430 pci_free_consistent(priv
->pdev
, size
, txq
->txd
, txq
->txd_dma
);
1434 for (i
= 0; i
< MWL8K_TX_DESCS
; i
++) {
1435 struct mwl8k_tx_desc
*tx_desc
;
1438 tx_desc
= txq
->txd
+ i
;
1439 nexti
= (i
+ 1) % MWL8K_TX_DESCS
;
1441 tx_desc
->status
= 0;
1442 tx_desc
->next_txd_phys_addr
=
1443 cpu_to_le32(txq
->txd_dma
+ nexti
* sizeof(*tx_desc
));
1449 static inline void mwl8k_tx_start(struct mwl8k_priv
*priv
)
1451 iowrite32(MWL8K_H2A_INT_PPA_READY
,
1452 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1453 iowrite32(MWL8K_H2A_INT_DUMMY
,
1454 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1455 ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
1458 static void mwl8k_dump_tx_rings(struct ieee80211_hw
*hw
)
1460 struct mwl8k_priv
*priv
= hw
->priv
;
1463 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
1464 struct mwl8k_tx_queue
*txq
= priv
->txq
+ i
;
1470 for (desc
= 0; desc
< MWL8K_TX_DESCS
; desc
++) {
1471 struct mwl8k_tx_desc
*tx_desc
= txq
->txd
+ desc
;
1474 status
= le32_to_cpu(tx_desc
->status
);
1475 if (status
& MWL8K_TXD_STATUS_FW_OWNED
)
1480 if (tx_desc
->pkt_len
== 0)
1484 wiphy_err(hw
->wiphy
,
1485 "txq[%d] len=%d head=%d tail=%d "
1486 "fw_owned=%d drv_owned=%d unused=%d\n",
1488 txq
->len
, txq
->head
, txq
->tail
,
1489 fw_owned
, drv_owned
, unused
);
1494 * Must be called with priv->fw_mutex held and tx queues stopped.
1496 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1498 static int mwl8k_tx_wait_empty(struct ieee80211_hw
*hw
)
1500 struct mwl8k_priv
*priv
= hw
->priv
;
1501 DECLARE_COMPLETION_ONSTACK(tx_wait
);
1507 /* Since fw restart is in progress, allow only the firmware
1508 * commands from the restart code and block the other
1509 * commands since they are going to fail in any case since
1510 * the firmware has crashed
1512 if (priv
->hw_restart_in_progress
) {
1513 if (priv
->hw_restart_owner
== current
)
1520 * The TX queues are stopped at this point, so this test
1521 * doesn't need to take ->tx_lock.
1523 if (!priv
->pending_tx_pkts
)
1529 spin_lock_bh(&priv
->tx_lock
);
1530 priv
->tx_wait
= &tx_wait
;
1533 unsigned long timeout
;
1535 oldcount
= priv
->pending_tx_pkts
;
1537 spin_unlock_bh(&priv
->tx_lock
);
1538 timeout
= wait_for_completion_timeout(&tx_wait
,
1539 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS
));
1540 spin_lock_bh(&priv
->tx_lock
);
1543 WARN_ON(priv
->pending_tx_pkts
);
1545 wiphy_notice(hw
->wiphy
, "tx rings drained\n");
1549 if (priv
->pending_tx_pkts
< oldcount
) {
1550 wiphy_notice(hw
->wiphy
,
1551 "waiting for tx rings to drain (%d -> %d pkts)\n",
1552 oldcount
, priv
->pending_tx_pkts
);
1557 priv
->tx_wait
= NULL
;
1559 wiphy_err(hw
->wiphy
, "tx rings stuck for %d ms\n",
1560 MWL8K_TX_WAIT_TIMEOUT_MS
);
1561 mwl8k_dump_tx_rings(hw
);
1562 priv
->hw_restart_in_progress
= true;
1563 ieee80211_queue_work(hw
, &priv
->fw_reload
);
1567 spin_unlock_bh(&priv
->tx_lock
);
1572 #define MWL8K_TXD_SUCCESS(status) \
1573 ((status) & (MWL8K_TXD_STATUS_OK | \
1574 MWL8K_TXD_STATUS_OK_RETRY | \
1575 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1577 static int mwl8k_tid_queue_mapping(u8 tid
)
1584 return IEEE80211_AC_BE
;
1588 return IEEE80211_AC_BK
;
1592 return IEEE80211_AC_VI
;
1596 return IEEE80211_AC_VO
;
1604 /* The firmware will fill in the rate information
1605 * for each packet that gets queued in the hardware
1606 * and these macros will interpret that info.
1609 #define RI_FORMAT(a) (a & 0x0001)
1610 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1613 mwl8k_txq_reclaim(struct ieee80211_hw
*hw
, int index
, int limit
, int force
)
1615 struct mwl8k_priv
*priv
= hw
->priv
;
1616 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1620 while (txq
->len
> 0 && limit
--) {
1622 struct mwl8k_tx_desc
*tx_desc
;
1625 struct sk_buff
*skb
;
1626 struct ieee80211_tx_info
*info
;
1628 struct ieee80211_sta
*sta
;
1629 struct mwl8k_sta
*sta_info
= NULL
;
1631 struct ieee80211_hdr
*wh
;
1634 tx_desc
= txq
->txd
+ tx
;
1636 status
= le32_to_cpu(tx_desc
->status
);
1638 if (status
& MWL8K_TXD_STATUS_FW_OWNED
) {
1642 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
);
1645 txq
->head
= (tx
+ 1) % MWL8K_TX_DESCS
;
1646 BUG_ON(txq
->len
== 0);
1648 priv
->pending_tx_pkts
--;
1650 addr
= le32_to_cpu(tx_desc
->pkt_phys_addr
);
1651 size
= le16_to_cpu(tx_desc
->pkt_len
);
1653 txq
->skb
[tx
] = NULL
;
1655 BUG_ON(skb
== NULL
);
1656 pci_unmap_single(priv
->pdev
, addr
, size
, PCI_DMA_TODEVICE
);
1658 mwl8k_remove_dma_header(skb
, tx_desc
->qos_control
);
1660 wh
= (struct ieee80211_hdr
*) skb
->data
;
1662 /* Mark descriptor as unused */
1663 tx_desc
->pkt_phys_addr
= 0;
1664 tx_desc
->pkt_len
= 0;
1666 info
= IEEE80211_SKB_CB(skb
);
1667 if (ieee80211_is_data(wh
->frame_control
)) {
1669 sta
= ieee80211_find_sta_by_ifaddr(hw
, wh
->addr1
,
1672 sta_info
= MWL8K_STA(sta
);
1673 BUG_ON(sta_info
== NULL
);
1674 rate_info
= le16_to_cpu(tx_desc
->rate_info
);
1675 /* If rate is < 6.5 Mpbs for an ht station
1676 * do not form an ampdu. If the station is a
1677 * legacy station (format = 0), do not form an
1680 if (RI_RATE_ID_MCS(rate_info
) < 1 ||
1681 RI_FORMAT(rate_info
) == 0) {
1682 sta_info
->is_ampdu_allowed
= false;
1684 sta_info
->is_ampdu_allowed
= true;
1690 ieee80211_tx_info_clear_status(info
);
1692 /* Rate control is happening in the firmware.
1693 * Ensure no tx rate is being reported.
1695 info
->status
.rates
[0].idx
= -1;
1696 info
->status
.rates
[0].count
= 1;
1698 if (MWL8K_TXD_SUCCESS(status
))
1699 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1701 ieee80211_tx_status_irqsafe(hw
, skb
);
1709 /* must be called only when the card's transmit is completely halted */
1710 static void mwl8k_txq_deinit(struct ieee80211_hw
*hw
, int index
)
1712 struct mwl8k_priv
*priv
= hw
->priv
;
1713 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1715 if (txq
->txd
== NULL
)
1718 mwl8k_txq_reclaim(hw
, index
, INT_MAX
, 1);
1723 pci_free_consistent(priv
->pdev
,
1724 MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
),
1725 txq
->txd
, txq
->txd_dma
);
1729 /* caller must hold priv->stream_lock when calling the stream functions */
1730 static struct mwl8k_ampdu_stream
*
1731 mwl8k_add_stream(struct ieee80211_hw
*hw
, struct ieee80211_sta
*sta
, u8 tid
)
1733 struct mwl8k_ampdu_stream
*stream
;
1734 struct mwl8k_priv
*priv
= hw
->priv
;
1737 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++) {
1738 stream
= &priv
->ampdu
[i
];
1739 if (stream
->state
== AMPDU_NO_STREAM
) {
1741 stream
->state
= AMPDU_STREAM_NEW
;
1744 stream
->txq_idx
= MWL8K_TX_WMM_QUEUES
+ i
;
1745 wiphy_debug(hw
->wiphy
, "Added a new stream for %pM %d",
1754 mwl8k_start_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1758 /* if the stream has already been started, don't start it again */
1759 if (stream
->state
!= AMPDU_STREAM_NEW
)
1761 ret
= ieee80211_start_tx_ba_session(stream
->sta
, stream
->tid
, 0);
1763 wiphy_debug(hw
->wiphy
, "Failed to start stream for %pM %d: "
1764 "%d\n", stream
->sta
->addr
, stream
->tid
, ret
);
1766 wiphy_debug(hw
->wiphy
, "Started stream for %pM %d\n",
1767 stream
->sta
->addr
, stream
->tid
);
1772 mwl8k_remove_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1774 wiphy_debug(hw
->wiphy
, "Remove stream for %pM %d\n", stream
->sta
->addr
,
1776 memset(stream
, 0, sizeof(*stream
));
1779 static struct mwl8k_ampdu_stream
*
1780 mwl8k_lookup_stream(struct ieee80211_hw
*hw
, u8
*addr
, u8 tid
)
1782 struct mwl8k_priv
*priv
= hw
->priv
;
1785 for (i
= 0 ; i
< priv
->num_ampdu_queues
; i
++) {
1786 struct mwl8k_ampdu_stream
*stream
;
1787 stream
= &priv
->ampdu
[i
];
1788 if (stream
->state
== AMPDU_NO_STREAM
)
1790 if (!memcmp(stream
->sta
->addr
, addr
, ETH_ALEN
) &&
1797 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1798 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta
*sta
, u8 tid
)
1800 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1801 struct tx_traffic_info
*tx_stats
;
1803 BUG_ON(tid
>= MWL8K_MAX_TID
);
1804 tx_stats
= &sta_info
->tx_stats
[tid
];
1806 return sta_info
->is_ampdu_allowed
&&
1807 tx_stats
->pkts
> MWL8K_AMPDU_PACKET_THRESHOLD
;
1810 static inline void mwl8k_tx_count_packet(struct ieee80211_sta
*sta
, u8 tid
)
1812 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1813 struct tx_traffic_info
*tx_stats
;
1815 BUG_ON(tid
>= MWL8K_MAX_TID
);
1816 tx_stats
= &sta_info
->tx_stats
[tid
];
1818 if (tx_stats
->start_time
== 0)
1819 tx_stats
->start_time
= jiffies
;
1821 /* reset the packet count after each second elapses. If the number of
1822 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1823 * an ampdu stream to be started.
1825 if (jiffies
- tx_stats
->start_time
> HZ
) {
1827 tx_stats
->start_time
= 0;
1833 mwl8k_txq_xmit(struct ieee80211_hw
*hw
, int index
, struct sk_buff
*skb
)
1835 struct mwl8k_priv
*priv
= hw
->priv
;
1836 struct ieee80211_tx_info
*tx_info
;
1837 struct mwl8k_vif
*mwl8k_vif
;
1838 struct ieee80211_sta
*sta
;
1839 struct ieee80211_hdr
*wh
;
1840 struct mwl8k_tx_queue
*txq
;
1841 struct mwl8k_tx_desc
*tx
;
1848 struct mwl8k_ampdu_stream
*stream
= NULL
;
1849 bool start_ba_session
= false;
1850 bool mgmtframe
= false;
1851 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)skb
->data
;
1853 wh
= (struct ieee80211_hdr
*)skb
->data
;
1854 if (ieee80211_is_data_qos(wh
->frame_control
))
1855 qos
= le16_to_cpu(*((__le16
*)ieee80211_get_qos_ctl(wh
)));
1859 if (ieee80211_is_mgmt(wh
->frame_control
))
1863 mwl8k_encapsulate_tx_frame(priv
, skb
);
1865 mwl8k_add_dma_header(priv
, skb
, 0, 0);
1867 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1869 tx_info
= IEEE80211_SKB_CB(skb
);
1870 sta
= tx_info
->control
.sta
;
1871 mwl8k_vif
= MWL8K_VIF(tx_info
->control
.vif
);
1873 if (tx_info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
1874 wh
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
1875 wh
->seq_ctrl
|= cpu_to_le16(mwl8k_vif
->seqno
);
1876 mwl8k_vif
->seqno
+= 0x10;
1879 /* Setup firmware control bit fields for each frame type. */
1882 if (ieee80211_is_mgmt(wh
->frame_control
) ||
1883 ieee80211_is_ctl(wh
->frame_control
)) {
1885 qos
|= MWL8K_QOS_QLEN_UNSPEC
| MWL8K_QOS_EOSP
;
1886 } else if (ieee80211_is_data(wh
->frame_control
)) {
1888 if (is_multicast_ether_addr(wh
->addr1
))
1889 txstatus
|= MWL8K_TXD_STATUS_MULTICAST_TX
;
1891 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
1892 if (tx_info
->flags
& IEEE80211_TX_CTL_AMPDU
)
1893 qos
|= MWL8K_QOS_ACK_POLICY_BLOCKACK
;
1895 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
1898 /* Queue ADDBA request in the respective data queue. While setting up
1899 * the ampdu stream, mac80211 queues further packets for that
1900 * particular ra/tid pair. However, packets piled up in the hardware
1901 * for that ra/tid pair will still go out. ADDBA request and the
1902 * related data packets going out from different queues asynchronously
1903 * will cause a shift in the receiver window which might result in
1904 * ampdu packets getting dropped at the receiver after the stream has
1907 if (unlikely(ieee80211_is_action(wh
->frame_control
) &&
1908 mgmt
->u
.action
.category
== WLAN_CATEGORY_BACK
&&
1909 mgmt
->u
.action
.u
.addba_req
.action_code
== WLAN_ACTION_ADDBA_REQ
&&
1911 u16 capab
= le16_to_cpu(mgmt
->u
.action
.u
.addba_req
.capab
);
1912 tid
= (capab
& IEEE80211_ADDBA_PARAM_TID_MASK
) >> 2;
1913 index
= mwl8k_tid_queue_mapping(tid
);
1918 if (priv
->ap_fw
&& sta
&& sta
->ht_cap
.ht_supported
1919 && skb
->protocol
!= cpu_to_be16(ETH_P_PAE
)
1920 && ieee80211_is_data_qos(wh
->frame_control
)) {
1922 mwl8k_tx_count_packet(sta
, tid
);
1923 spin_lock(&priv
->stream_lock
);
1924 stream
= mwl8k_lookup_stream(hw
, sta
->addr
, tid
);
1925 if (stream
!= NULL
) {
1926 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
1927 txpriority
= stream
->txq_idx
;
1928 index
= stream
->txq_idx
;
1929 } else if (stream
->state
== AMPDU_STREAM_NEW
) {
1930 /* We get here if the driver sends us packets
1931 * after we've initiated a stream, but before
1932 * our ampdu_action routine has been called
1933 * with IEEE80211_AMPDU_TX_START to get the SSN
1934 * for the ADDBA request. So this packet can
1935 * go out with no risk of sequence number
1936 * mismatch. No special handling is required.
1939 /* Drop packets that would go out after the
1940 * ADDBA request was sent but before the ADDBA
1941 * response is received. If we don't do this,
1942 * the recipient would probably receive it
1943 * after the ADDBA request with SSN 0. This
1944 * will cause the recipient's BA receive window
1945 * to shift, which would cause the subsequent
1946 * packets in the BA stream to be discarded.
1947 * mac80211 queues our packets for us in this
1948 * case, so this is really just a safety check.
1950 wiphy_warn(hw
->wiphy
,
1951 "Cannot send packet while ADDBA "
1952 "dialog is underway.\n");
1953 spin_unlock(&priv
->stream_lock
);
1958 /* Defer calling mwl8k_start_stream so that the current
1959 * skb can go out before the ADDBA request. This
1960 * prevents sequence number mismatch at the recepient
1961 * as described above.
1963 if (mwl8k_ampdu_allowed(sta
, tid
)) {
1964 stream
= mwl8k_add_stream(hw
, sta
, tid
);
1966 start_ba_session
= true;
1969 spin_unlock(&priv
->stream_lock
);
1972 dma
= pci_map_single(priv
->pdev
, skb
->data
,
1973 skb
->len
, PCI_DMA_TODEVICE
);
1975 if (pci_dma_mapping_error(priv
->pdev
, dma
)) {
1976 wiphy_debug(hw
->wiphy
,
1977 "failed to dma map skb, dropping TX frame.\n");
1978 if (start_ba_session
) {
1979 spin_lock(&priv
->stream_lock
);
1980 mwl8k_remove_stream(hw
, stream
);
1981 spin_unlock(&priv
->stream_lock
);
1987 spin_lock_bh(&priv
->tx_lock
);
1989 txq
= priv
->txq
+ index
;
1991 /* Mgmt frames that go out frequently are probe
1992 * responses. Other mgmt frames got out relatively
1993 * infrequently. Hence reserve 2 buffers so that
1994 * other mgmt frames do not get dropped due to an
1995 * already queued probe response in one of the
1999 if (txq
->len
>= MWL8K_TX_DESCS
- 2) {
2000 if (!mgmtframe
|| txq
->len
== MWL8K_TX_DESCS
) {
2001 if (start_ba_session
) {
2002 spin_lock(&priv
->stream_lock
);
2003 mwl8k_remove_stream(hw
, stream
);
2004 spin_unlock(&priv
->stream_lock
);
2006 spin_unlock_bh(&priv
->tx_lock
);
2012 BUG_ON(txq
->skb
[txq
->tail
] != NULL
);
2013 txq
->skb
[txq
->tail
] = skb
;
2015 tx
= txq
->txd
+ txq
->tail
;
2016 tx
->data_rate
= txdatarate
;
2017 tx
->tx_priority
= txpriority
;
2018 tx
->qos_control
= cpu_to_le16(qos
);
2019 tx
->pkt_phys_addr
= cpu_to_le32(dma
);
2020 tx
->pkt_len
= cpu_to_le16(skb
->len
);
2022 if (!priv
->ap_fw
&& tx_info
->control
.sta
!= NULL
)
2023 tx
->peer_id
= MWL8K_STA(tx_info
->control
.sta
)->peer_id
;
2028 tx
->timestamp
= cpu_to_le32(ioread32(priv
->regs
+
2029 MWL8K_HW_TIMER_REGISTER
));
2032 tx
->status
= cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
| txstatus
);
2035 priv
->pending_tx_pkts
++;
2038 if (txq
->tail
== MWL8K_TX_DESCS
)
2041 mwl8k_tx_start(priv
);
2043 spin_unlock_bh(&priv
->tx_lock
);
2045 /* Initiate the ampdu session here */
2046 if (start_ba_session
) {
2047 spin_lock(&priv
->stream_lock
);
2048 if (mwl8k_start_stream(hw
, stream
))
2049 mwl8k_remove_stream(hw
, stream
);
2050 spin_unlock(&priv
->stream_lock
);
2058 * We have the following requirements for issuing firmware commands:
2059 * - Some commands require that the packet transmit path is idle when
2060 * the command is issued. (For simplicity, we'll just quiesce the
2061 * transmit path for every command.)
2062 * - There are certain sequences of commands that need to be issued to
2063 * the hardware sequentially, with no other intervening commands.
2065 * This leads to an implementation of a "firmware lock" as a mutex that
2066 * can be taken recursively, and which is taken by both the low-level
2067 * command submission function (mwl8k_post_cmd) as well as any users of
2068 * that function that require issuing of an atomic sequence of commands,
2069 * and quiesces the transmit path whenever it's taken.
2071 static int mwl8k_fw_lock(struct ieee80211_hw
*hw
)
2073 struct mwl8k_priv
*priv
= hw
->priv
;
2075 if (priv
->fw_mutex_owner
!= current
) {
2078 mutex_lock(&priv
->fw_mutex
);
2079 ieee80211_stop_queues(hw
);
2081 rc
= mwl8k_tx_wait_empty(hw
);
2083 if (!priv
->hw_restart_in_progress
)
2084 ieee80211_wake_queues(hw
);
2086 mutex_unlock(&priv
->fw_mutex
);
2091 priv
->fw_mutex_owner
= current
;
2094 priv
->fw_mutex_depth
++;
2099 static void mwl8k_fw_unlock(struct ieee80211_hw
*hw
)
2101 struct mwl8k_priv
*priv
= hw
->priv
;
2103 if (!--priv
->fw_mutex_depth
) {
2104 if (!priv
->hw_restart_in_progress
)
2105 ieee80211_wake_queues(hw
);
2107 priv
->fw_mutex_owner
= NULL
;
2108 mutex_unlock(&priv
->fw_mutex
);
2114 * Command processing.
2117 /* Timeout firmware commands after 10s */
2118 #define MWL8K_CMD_TIMEOUT_MS 10000
2120 static int mwl8k_post_cmd(struct ieee80211_hw
*hw
, struct mwl8k_cmd_pkt
*cmd
)
2122 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
2123 struct mwl8k_priv
*priv
= hw
->priv
;
2124 void __iomem
*regs
= priv
->regs
;
2125 dma_addr_t dma_addr
;
2126 unsigned int dma_size
;
2128 unsigned long timeout
= 0;
2131 cmd
->result
= (__force __le16
) 0xffff;
2132 dma_size
= le16_to_cpu(cmd
->length
);
2133 dma_addr
= pci_map_single(priv
->pdev
, cmd
, dma_size
,
2134 PCI_DMA_BIDIRECTIONAL
);
2135 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
2138 rc
= mwl8k_fw_lock(hw
);
2140 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2141 PCI_DMA_BIDIRECTIONAL
);
2145 priv
->hostcmd_wait
= &cmd_wait
;
2146 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
2147 iowrite32(MWL8K_H2A_INT_DOORBELL
,
2148 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2149 iowrite32(MWL8K_H2A_INT_DUMMY
,
2150 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2152 timeout
= wait_for_completion_timeout(&cmd_wait
,
2153 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS
));
2155 priv
->hostcmd_wait
= NULL
;
2157 mwl8k_fw_unlock(hw
);
2159 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2160 PCI_DMA_BIDIRECTIONAL
);
2163 wiphy_err(hw
->wiphy
, "Command %s timeout after %u ms\n",
2164 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2165 MWL8K_CMD_TIMEOUT_MS
);
2170 ms
= MWL8K_CMD_TIMEOUT_MS
- jiffies_to_msecs(timeout
);
2172 rc
= cmd
->result
? -EINVAL
: 0;
2174 wiphy_err(hw
->wiphy
, "Command %s error 0x%x\n",
2175 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2176 le16_to_cpu(cmd
->result
));
2178 wiphy_notice(hw
->wiphy
, "Command %s took %d ms\n",
2179 mwl8k_cmd_name(cmd
->code
,
2187 static int mwl8k_post_pervif_cmd(struct ieee80211_hw
*hw
,
2188 struct ieee80211_vif
*vif
,
2189 struct mwl8k_cmd_pkt
*cmd
)
2192 cmd
->macid
= MWL8K_VIF(vif
)->macid
;
2193 return mwl8k_post_cmd(hw
, cmd
);
2197 * Setup code shared between STA and AP firmware images.
2199 static void mwl8k_setup_2ghz_band(struct ieee80211_hw
*hw
)
2201 struct mwl8k_priv
*priv
= hw
->priv
;
2203 BUILD_BUG_ON(sizeof(priv
->channels_24
) != sizeof(mwl8k_channels_24
));
2204 memcpy(priv
->channels_24
, mwl8k_channels_24
, sizeof(mwl8k_channels_24
));
2206 BUILD_BUG_ON(sizeof(priv
->rates_24
) != sizeof(mwl8k_rates_24
));
2207 memcpy(priv
->rates_24
, mwl8k_rates_24
, sizeof(mwl8k_rates_24
));
2209 priv
->band_24
.band
= IEEE80211_BAND_2GHZ
;
2210 priv
->band_24
.channels
= priv
->channels_24
;
2211 priv
->band_24
.n_channels
= ARRAY_SIZE(mwl8k_channels_24
);
2212 priv
->band_24
.bitrates
= priv
->rates_24
;
2213 priv
->band_24
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_24
);
2215 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band_24
;
2218 static void mwl8k_setup_5ghz_band(struct ieee80211_hw
*hw
)
2220 struct mwl8k_priv
*priv
= hw
->priv
;
2222 BUILD_BUG_ON(sizeof(priv
->channels_50
) != sizeof(mwl8k_channels_50
));
2223 memcpy(priv
->channels_50
, mwl8k_channels_50
, sizeof(mwl8k_channels_50
));
2225 BUILD_BUG_ON(sizeof(priv
->rates_50
) != sizeof(mwl8k_rates_50
));
2226 memcpy(priv
->rates_50
, mwl8k_rates_50
, sizeof(mwl8k_rates_50
));
2228 priv
->band_50
.band
= IEEE80211_BAND_5GHZ
;
2229 priv
->band_50
.channels
= priv
->channels_50
;
2230 priv
->band_50
.n_channels
= ARRAY_SIZE(mwl8k_channels_50
);
2231 priv
->band_50
.bitrates
= priv
->rates_50
;
2232 priv
->band_50
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_50
);
2234 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->band_50
;
2238 * CMD_GET_HW_SPEC (STA version).
2240 struct mwl8k_cmd_get_hw_spec_sta
{
2241 struct mwl8k_cmd_pkt header
;
2243 __u8 host_interface
;
2245 __u8 perm_addr
[ETH_ALEN
];
2250 __u8 mcs_bitmap
[16];
2251 __le32 rx_queue_ptr
;
2252 __le32 num_tx_queues
;
2253 __le32 tx_queue_ptrs
[MWL8K_TX_WMM_QUEUES
];
2255 __le32 num_tx_desc_per_queue
;
2259 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2260 #define MWL8K_CAP_GREENFIELD 0x08000000
2261 #define MWL8K_CAP_AMPDU 0x04000000
2262 #define MWL8K_CAP_RX_STBC 0x01000000
2263 #define MWL8K_CAP_TX_STBC 0x00800000
2264 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2265 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2266 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2267 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2268 #define MWL8K_CAP_DELAY_BA 0x00003000
2269 #define MWL8K_CAP_MIMO 0x00000200
2270 #define MWL8K_CAP_40MHZ 0x00000100
2271 #define MWL8K_CAP_BAND_MASK 0x00000007
2272 #define MWL8K_CAP_5GHZ 0x00000004
2273 #define MWL8K_CAP_2GHZ4 0x00000001
2276 mwl8k_set_ht_caps(struct ieee80211_hw
*hw
,
2277 struct ieee80211_supported_band
*band
, u32 cap
)
2282 band
->ht_cap
.ht_supported
= 1;
2284 if (cap
& MWL8K_CAP_MAX_AMSDU
)
2285 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
2286 if (cap
& MWL8K_CAP_GREENFIELD
)
2287 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_GRN_FLD
;
2288 if (cap
& MWL8K_CAP_AMPDU
) {
2289 hw
->flags
|= IEEE80211_HW_AMPDU_AGGREGATION
;
2290 band
->ht_cap
.ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
;
2291 band
->ht_cap
.ampdu_density
= IEEE80211_HT_MPDU_DENSITY_NONE
;
2293 if (cap
& MWL8K_CAP_RX_STBC
)
2294 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_RX_STBC
;
2295 if (cap
& MWL8K_CAP_TX_STBC
)
2296 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_TX_STBC
;
2297 if (cap
& MWL8K_CAP_SHORTGI_40MHZ
)
2298 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_40
;
2299 if (cap
& MWL8K_CAP_SHORTGI_20MHZ
)
2300 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_20
;
2301 if (cap
& MWL8K_CAP_DELAY_BA
)
2302 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_DELAY_BA
;
2303 if (cap
& MWL8K_CAP_40MHZ
)
2304 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
2306 rx_streams
= hweight32(cap
& MWL8K_CAP_RX_ANTENNA_MASK
);
2307 tx_streams
= hweight32(cap
& MWL8K_CAP_TX_ANTENNA_MASK
);
2309 band
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2310 if (rx_streams
>= 2)
2311 band
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2312 if (rx_streams
>= 3)
2313 band
->ht_cap
.mcs
.rx_mask
[2] = 0xff;
2314 band
->ht_cap
.mcs
.rx_mask
[4] = 0x01;
2315 band
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2317 if (rx_streams
!= tx_streams
) {
2318 band
->ht_cap
.mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
2319 band
->ht_cap
.mcs
.tx_params
|= (tx_streams
- 1) <<
2320 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2325 mwl8k_set_caps(struct ieee80211_hw
*hw
, u32 caps
)
2327 struct mwl8k_priv
*priv
= hw
->priv
;
2329 if ((caps
& MWL8K_CAP_2GHZ4
) || !(caps
& MWL8K_CAP_BAND_MASK
)) {
2330 mwl8k_setup_2ghz_band(hw
);
2331 if (caps
& MWL8K_CAP_MIMO
)
2332 mwl8k_set_ht_caps(hw
, &priv
->band_24
, caps
);
2335 if (caps
& MWL8K_CAP_5GHZ
) {
2336 mwl8k_setup_5ghz_band(hw
);
2337 if (caps
& MWL8K_CAP_MIMO
)
2338 mwl8k_set_ht_caps(hw
, &priv
->band_50
, caps
);
2342 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw
*hw
)
2344 struct mwl8k_priv
*priv
= hw
->priv
;
2345 struct mwl8k_cmd_get_hw_spec_sta
*cmd
;
2349 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2353 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2354 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2356 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2357 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2358 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2359 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2360 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
2361 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[i
].txd_dma
);
2362 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2363 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2365 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2368 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2369 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2370 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2371 priv
->hw_rev
= cmd
->hw_rev
;
2372 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2373 priv
->ap_macids_supported
= 0x00000000;
2374 priv
->sta_macids_supported
= 0x00000001;
2382 * CMD_GET_HW_SPEC (AP version).
2384 struct mwl8k_cmd_get_hw_spec_ap
{
2385 struct mwl8k_cmd_pkt header
;
2387 __u8 host_interface
;
2390 __u8 perm_addr
[ETH_ALEN
];
2401 __le32 fw_api_version
;
2403 __le32 num_of_ampdu_queues
;
2404 __le32 wcbbase_ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
2407 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw
*hw
)
2409 struct mwl8k_priv
*priv
= hw
->priv
;
2410 struct mwl8k_cmd_get_hw_spec_ap
*cmd
;
2414 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2418 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2419 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2421 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2422 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2424 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2429 api_version
= le32_to_cpu(cmd
->fw_api_version
);
2430 if (priv
->device_info
->fw_api_ap
!= api_version
) {
2431 printk(KERN_ERR
"%s: Unsupported fw API version for %s."
2432 " Expected %d got %d.\n", MWL8K_NAME
,
2433 priv
->device_info
->part_name
,
2434 priv
->device_info
->fw_api_ap
,
2439 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2440 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2441 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2442 priv
->hw_rev
= cmd
->hw_rev
;
2443 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2444 priv
->ap_macids_supported
= 0x000000ff;
2445 priv
->sta_macids_supported
= 0x00000000;
2446 priv
->num_ampdu_queues
= le32_to_cpu(cmd
->num_of_ampdu_queues
);
2447 if (priv
->num_ampdu_queues
> MWL8K_MAX_AMPDU_QUEUES
) {
2448 wiphy_warn(hw
->wiphy
, "fw reported %d ampdu queues"
2449 " but we only support %d.\n",
2450 priv
->num_ampdu_queues
,
2451 MWL8K_MAX_AMPDU_QUEUES
);
2452 priv
->num_ampdu_queues
= MWL8K_MAX_AMPDU_QUEUES
;
2454 off
= le32_to_cpu(cmd
->rxwrptr
) & 0xffff;
2455 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2457 off
= le32_to_cpu(cmd
->rxrdptr
) & 0xffff;
2458 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2460 priv
->txq_offset
[0] = le32_to_cpu(cmd
->wcbbase0
) & 0xffff;
2461 priv
->txq_offset
[1] = le32_to_cpu(cmd
->wcbbase1
) & 0xffff;
2462 priv
->txq_offset
[2] = le32_to_cpu(cmd
->wcbbase2
) & 0xffff;
2463 priv
->txq_offset
[3] = le32_to_cpu(cmd
->wcbbase3
) & 0xffff;
2465 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++)
2466 priv
->txq_offset
[i
+ MWL8K_TX_WMM_QUEUES
] =
2467 le32_to_cpu(cmd
->wcbbase_ampdu
[i
]) & 0xffff;
2478 struct mwl8k_cmd_set_hw_spec
{
2479 struct mwl8k_cmd_pkt header
;
2481 __u8 host_interface
;
2483 __u8 perm_addr
[ETH_ALEN
];
2488 __le32 rx_queue_ptr
;
2489 __le32 num_tx_queues
;
2490 __le32 tx_queue_ptrs
[MWL8K_MAX_TX_QUEUES
];
2492 __le32 num_tx_desc_per_queue
;
2496 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2497 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2498 * the packets that are queued for more than 500ms, will be dropped in the
2499 * hardware. This helps minimizing the issues caused due to head-of-line
2500 * blocking where a slow client can hog the bandwidth and affect traffic to a
2503 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2504 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2505 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2506 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2507 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2509 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw
*hw
)
2511 struct mwl8k_priv
*priv
= hw
->priv
;
2512 struct mwl8k_cmd_set_hw_spec
*cmd
;
2516 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2520 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_HW_SPEC
);
2521 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2523 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2524 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2525 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2528 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2529 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2530 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2531 * priority is interpreted the right way in firmware.
2533 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
2534 int j
= mwl8k_tx_queues(priv
) - 1 - i
;
2535 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[j
].txd_dma
);
2538 cmd
->flags
= cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT
|
2539 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP
|
2540 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON
|
2541 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY
|
2542 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR
);
2543 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2544 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2546 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2553 * CMD_MAC_MULTICAST_ADR.
2555 struct mwl8k_cmd_mac_multicast_adr
{
2556 struct mwl8k_cmd_pkt header
;
2559 __u8 addr
[0][ETH_ALEN
];
2562 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2563 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2564 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2565 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2567 static struct mwl8k_cmd_pkt
*
2568 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw
*hw
, int allmulti
,
2569 struct netdev_hw_addr_list
*mc_list
)
2571 struct mwl8k_priv
*priv
= hw
->priv
;
2572 struct mwl8k_cmd_mac_multicast_adr
*cmd
;
2577 mc_count
= netdev_hw_addr_list_count(mc_list
);
2579 if (allmulti
|| mc_count
> priv
->num_mcaddrs
) {
2584 size
= sizeof(*cmd
) + mc_count
* ETH_ALEN
;
2586 cmd
= kzalloc(size
, GFP_ATOMIC
);
2590 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR
);
2591 cmd
->header
.length
= cpu_to_le16(size
);
2592 cmd
->action
= cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED
|
2593 MWL8K_ENABLE_RX_BROADCAST
);
2596 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST
);
2597 } else if (mc_count
) {
2598 struct netdev_hw_addr
*ha
;
2601 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST
);
2602 cmd
->numaddr
= cpu_to_le16(mc_count
);
2603 netdev_hw_addr_list_for_each(ha
, mc_list
) {
2604 memcpy(cmd
->addr
[i
], ha
->addr
, ETH_ALEN
);
2608 return &cmd
->header
;
2614 struct mwl8k_cmd_get_stat
{
2615 struct mwl8k_cmd_pkt header
;
2619 #define MWL8K_STAT_ACK_FAILURE 9
2620 #define MWL8K_STAT_RTS_FAILURE 12
2621 #define MWL8K_STAT_FCS_ERROR 24
2622 #define MWL8K_STAT_RTS_SUCCESS 11
2624 static int mwl8k_cmd_get_stat(struct ieee80211_hw
*hw
,
2625 struct ieee80211_low_level_stats
*stats
)
2627 struct mwl8k_cmd_get_stat
*cmd
;
2630 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2634 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_STAT
);
2635 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2637 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2639 stats
->dot11ACKFailureCount
=
2640 le32_to_cpu(cmd
->stats
[MWL8K_STAT_ACK_FAILURE
]);
2641 stats
->dot11RTSFailureCount
=
2642 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_FAILURE
]);
2643 stats
->dot11FCSErrorCount
=
2644 le32_to_cpu(cmd
->stats
[MWL8K_STAT_FCS_ERROR
]);
2645 stats
->dot11RTSSuccessCount
=
2646 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_SUCCESS
]);
2654 * CMD_RADIO_CONTROL.
2656 struct mwl8k_cmd_radio_control
{
2657 struct mwl8k_cmd_pkt header
;
2664 mwl8k_cmd_radio_control(struct ieee80211_hw
*hw
, bool enable
, bool force
)
2666 struct mwl8k_priv
*priv
= hw
->priv
;
2667 struct mwl8k_cmd_radio_control
*cmd
;
2670 if (enable
== priv
->radio_on
&& !force
)
2673 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2677 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RADIO_CONTROL
);
2678 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2679 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2680 cmd
->control
= cpu_to_le16(priv
->radio_short_preamble
? 3 : 1);
2681 cmd
->radio_on
= cpu_to_le16(enable
? 0x0001 : 0x0000);
2683 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2687 priv
->radio_on
= enable
;
2692 static int mwl8k_cmd_radio_disable(struct ieee80211_hw
*hw
)
2694 return mwl8k_cmd_radio_control(hw
, 0, 0);
2697 static int mwl8k_cmd_radio_enable(struct ieee80211_hw
*hw
)
2699 return mwl8k_cmd_radio_control(hw
, 1, 0);
2703 mwl8k_set_radio_preamble(struct ieee80211_hw
*hw
, bool short_preamble
)
2705 struct mwl8k_priv
*priv
= hw
->priv
;
2707 priv
->radio_short_preamble
= short_preamble
;
2709 return mwl8k_cmd_radio_control(hw
, 1, 1);
2715 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2717 struct mwl8k_cmd_rf_tx_power
{
2718 struct mwl8k_cmd_pkt header
;
2720 __le16 support_level
;
2721 __le16 current_level
;
2723 __le16 power_level_list
[MWL8K_RF_TX_POWER_LEVEL_TOTAL
];
2726 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw
*hw
, int dBm
)
2728 struct mwl8k_cmd_rf_tx_power
*cmd
;
2731 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2735 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_TX_POWER
);
2736 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2737 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2738 cmd
->support_level
= cpu_to_le16(dBm
);
2740 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2749 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2751 struct mwl8k_cmd_tx_power
{
2752 struct mwl8k_cmd_pkt header
;
2758 __le16 power_level_list
[MWL8K_TX_POWER_LEVEL_TOTAL
];
2761 static int mwl8k_cmd_tx_power(struct ieee80211_hw
*hw
,
2762 struct ieee80211_conf
*conf
,
2765 struct ieee80211_channel
*channel
= conf
->channel
;
2766 struct mwl8k_cmd_tx_power
*cmd
;
2770 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2774 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_TX_POWER
);
2775 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2776 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET_LIST
);
2778 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2779 cmd
->band
= cpu_to_le16(0x1);
2780 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2781 cmd
->band
= cpu_to_le16(0x4);
2783 cmd
->channel
= cpu_to_le16(channel
->hw_value
);
2785 if (conf
->channel_type
== NL80211_CHAN_NO_HT
||
2786 conf
->channel_type
== NL80211_CHAN_HT20
) {
2787 cmd
->bw
= cpu_to_le16(0x2);
2789 cmd
->bw
= cpu_to_le16(0x4);
2790 if (conf
->channel_type
== NL80211_CHAN_HT40MINUS
)
2791 cmd
->sub_ch
= cpu_to_le16(0x3);
2792 else if (conf
->channel_type
== NL80211_CHAN_HT40PLUS
)
2793 cmd
->sub_ch
= cpu_to_le16(0x1);
2796 for (i
= 0; i
< MWL8K_TX_POWER_LEVEL_TOTAL
; i
++)
2797 cmd
->power_level_list
[i
] = cpu_to_le16(pwr
);
2799 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2808 struct mwl8k_cmd_rf_antenna
{
2809 struct mwl8k_cmd_pkt header
;
2814 #define MWL8K_RF_ANTENNA_RX 1
2815 #define MWL8K_RF_ANTENNA_TX 2
2818 mwl8k_cmd_rf_antenna(struct ieee80211_hw
*hw
, int antenna
, int mask
)
2820 struct mwl8k_cmd_rf_antenna
*cmd
;
2823 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2827 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_ANTENNA
);
2828 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2829 cmd
->antenna
= cpu_to_le16(antenna
);
2830 cmd
->mode
= cpu_to_le16(mask
);
2832 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2841 struct mwl8k_cmd_set_beacon
{
2842 struct mwl8k_cmd_pkt header
;
2847 static int mwl8k_cmd_set_beacon(struct ieee80211_hw
*hw
,
2848 struct ieee80211_vif
*vif
, u8
*beacon
, int len
)
2850 struct mwl8k_cmd_set_beacon
*cmd
;
2853 cmd
= kzalloc(sizeof(*cmd
) + len
, GFP_KERNEL
);
2857 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_BEACON
);
2858 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
) + len
);
2859 cmd
->beacon_len
= cpu_to_le16(len
);
2860 memcpy(cmd
->beacon
, beacon
, len
);
2862 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
2871 struct mwl8k_cmd_set_pre_scan
{
2872 struct mwl8k_cmd_pkt header
;
2875 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw
*hw
)
2877 struct mwl8k_cmd_set_pre_scan
*cmd
;
2880 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2884 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN
);
2885 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2887 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2894 * CMD_SET_POST_SCAN.
2896 struct mwl8k_cmd_set_post_scan
{
2897 struct mwl8k_cmd_pkt header
;
2899 __u8 bssid
[ETH_ALEN
];
2903 mwl8k_cmd_set_post_scan(struct ieee80211_hw
*hw
, const __u8
*mac
)
2905 struct mwl8k_cmd_set_post_scan
*cmd
;
2908 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2912 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_POST_SCAN
);
2913 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2915 memcpy(cmd
->bssid
, mac
, ETH_ALEN
);
2917 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2924 * CMD_SET_RF_CHANNEL.
2926 struct mwl8k_cmd_set_rf_channel
{
2927 struct mwl8k_cmd_pkt header
;
2929 __u8 current_channel
;
2930 __le32 channel_flags
;
2933 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw
*hw
,
2934 struct ieee80211_conf
*conf
)
2936 struct ieee80211_channel
*channel
= conf
->channel
;
2937 struct mwl8k_cmd_set_rf_channel
*cmd
;
2940 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2944 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL
);
2945 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2946 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2947 cmd
->current_channel
= channel
->hw_value
;
2949 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2950 cmd
->channel_flags
|= cpu_to_le32(0x00000001);
2951 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2952 cmd
->channel_flags
|= cpu_to_le32(0x00000004);
2954 if (conf
->channel_type
== NL80211_CHAN_NO_HT
||
2955 conf
->channel_type
== NL80211_CHAN_HT20
)
2956 cmd
->channel_flags
|= cpu_to_le32(0x00000080);
2957 else if (conf
->channel_type
== NL80211_CHAN_HT40MINUS
)
2958 cmd
->channel_flags
|= cpu_to_le32(0x000001900);
2959 else if (conf
->channel_type
== NL80211_CHAN_HT40PLUS
)
2960 cmd
->channel_flags
|= cpu_to_le32(0x000000900);
2962 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2971 #define MWL8K_FRAME_PROT_DISABLED 0x00
2972 #define MWL8K_FRAME_PROT_11G 0x07
2973 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2974 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2976 struct mwl8k_cmd_update_set_aid
{
2977 struct mwl8k_cmd_pkt header
;
2980 /* AP's MAC address (BSSID) */
2981 __u8 bssid
[ETH_ALEN
];
2982 __le16 protection_mode
;
2983 __u8 supp_rates
[14];
2986 static void legacy_rate_mask_to_array(u8
*rates
, u32 mask
)
2992 * Clear nonstandard rates 4 and 13.
2996 for (i
= 0, j
= 0; i
< 14; i
++) {
2997 if (mask
& (1 << i
))
2998 rates
[j
++] = mwl8k_rates_24
[i
].hw_value
;
3003 mwl8k_cmd_set_aid(struct ieee80211_hw
*hw
,
3004 struct ieee80211_vif
*vif
, u32 legacy_rate_mask
)
3006 struct mwl8k_cmd_update_set_aid
*cmd
;
3010 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3014 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_AID
);
3015 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3016 cmd
->aid
= cpu_to_le16(vif
->bss_conf
.aid
);
3017 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
3019 if (vif
->bss_conf
.use_cts_prot
) {
3020 prot_mode
= MWL8K_FRAME_PROT_11G
;
3022 switch (vif
->bss_conf
.ht_operation_mode
&
3023 IEEE80211_HT_OP_MODE_PROTECTION
) {
3024 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
3025 prot_mode
= MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY
;
3027 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
3028 prot_mode
= MWL8K_FRAME_PROT_11N_HT_ALL
;
3031 prot_mode
= MWL8K_FRAME_PROT_DISABLED
;
3035 cmd
->protection_mode
= cpu_to_le16(prot_mode
);
3037 legacy_rate_mask_to_array(cmd
->supp_rates
, legacy_rate_mask
);
3039 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3048 struct mwl8k_cmd_set_rate
{
3049 struct mwl8k_cmd_pkt header
;
3050 __u8 legacy_rates
[14];
3052 /* Bitmap for supported MCS codes. */
3058 mwl8k_cmd_set_rate(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
3059 u32 legacy_rate_mask
, u8
*mcs_rates
)
3061 struct mwl8k_cmd_set_rate
*cmd
;
3064 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3068 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATE
);
3069 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3070 legacy_rate_mask_to_array(cmd
->legacy_rates
, legacy_rate_mask
);
3071 memcpy(cmd
->mcs_set
, mcs_rates
, 16);
3073 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3080 * CMD_FINALIZE_JOIN.
3082 #define MWL8K_FJ_BEACON_MAXLEN 128
3084 struct mwl8k_cmd_finalize_join
{
3085 struct mwl8k_cmd_pkt header
;
3086 __le32 sleep_interval
; /* Number of beacon periods to sleep */
3087 __u8 beacon_data
[MWL8K_FJ_BEACON_MAXLEN
];
3090 static int mwl8k_cmd_finalize_join(struct ieee80211_hw
*hw
, void *frame
,
3091 int framelen
, int dtim
)
3093 struct mwl8k_cmd_finalize_join
*cmd
;
3094 struct ieee80211_mgmt
*payload
= frame
;
3098 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3102 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN
);
3103 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3104 cmd
->sleep_interval
= cpu_to_le32(dtim
? dtim
: 1);
3106 payload_len
= framelen
- ieee80211_hdrlen(payload
->frame_control
);
3107 if (payload_len
< 0)
3109 else if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
3110 payload_len
= MWL8K_FJ_BEACON_MAXLEN
;
3112 memcpy(cmd
->beacon_data
, &payload
->u
.beacon
, payload_len
);
3114 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3121 * CMD_SET_RTS_THRESHOLD.
3123 struct mwl8k_cmd_set_rts_threshold
{
3124 struct mwl8k_cmd_pkt header
;
3130 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw
*hw
, int rts_thresh
)
3132 struct mwl8k_cmd_set_rts_threshold
*cmd
;
3135 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3139 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD
);
3140 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3141 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3142 cmd
->threshold
= cpu_to_le16(rts_thresh
);
3144 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3153 struct mwl8k_cmd_set_slot
{
3154 struct mwl8k_cmd_pkt header
;
3159 static int mwl8k_cmd_set_slot(struct ieee80211_hw
*hw
, bool short_slot_time
)
3161 struct mwl8k_cmd_set_slot
*cmd
;
3164 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3168 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_SLOT
);
3169 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3170 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3171 cmd
->short_slot
= short_slot_time
;
3173 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3180 * CMD_SET_EDCA_PARAMS.
3182 struct mwl8k_cmd_set_edca_params
{
3183 struct mwl8k_cmd_pkt header
;
3185 /* See MWL8K_SET_EDCA_XXX below */
3188 /* TX opportunity in units of 32 us */
3193 /* Log exponent of max contention period: 0...15 */
3196 /* Log exponent of min contention period: 0...15 */
3199 /* Adaptive interframe spacing in units of 32us */
3202 /* TX queue to configure */
3206 /* Log exponent of max contention period: 0...15 */
3209 /* Log exponent of min contention period: 0...15 */
3212 /* Adaptive interframe spacing in units of 32us */
3215 /* TX queue to configure */
3221 #define MWL8K_SET_EDCA_CW 0x01
3222 #define MWL8K_SET_EDCA_TXOP 0x02
3223 #define MWL8K_SET_EDCA_AIFS 0x04
3225 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3226 MWL8K_SET_EDCA_TXOP | \
3227 MWL8K_SET_EDCA_AIFS)
3230 mwl8k_cmd_set_edca_params(struct ieee80211_hw
*hw
, __u8 qnum
,
3231 __u16 cw_min
, __u16 cw_max
,
3232 __u8 aifs
, __u16 txop
)
3234 struct mwl8k_priv
*priv
= hw
->priv
;
3235 struct mwl8k_cmd_set_edca_params
*cmd
;
3238 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3242 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS
);
3243 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3244 cmd
->action
= cpu_to_le16(MWL8K_SET_EDCA_ALL
);
3245 cmd
->txop
= cpu_to_le16(txop
);
3247 cmd
->ap
.log_cw_max
= cpu_to_le32(ilog2(cw_max
+ 1));
3248 cmd
->ap
.log_cw_min
= cpu_to_le32(ilog2(cw_min
+ 1));
3249 cmd
->ap
.aifs
= aifs
;
3252 cmd
->sta
.log_cw_max
= (u8
)ilog2(cw_max
+ 1);
3253 cmd
->sta
.log_cw_min
= (u8
)ilog2(cw_min
+ 1);
3254 cmd
->sta
.aifs
= aifs
;
3255 cmd
->sta
.txq
= qnum
;
3258 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3267 struct mwl8k_cmd_set_wmm_mode
{
3268 struct mwl8k_cmd_pkt header
;
3272 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw
*hw
, bool enable
)
3274 struct mwl8k_priv
*priv
= hw
->priv
;
3275 struct mwl8k_cmd_set_wmm_mode
*cmd
;
3278 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3282 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_WMM_MODE
);
3283 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3284 cmd
->action
= cpu_to_le16(!!enable
);
3286 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3290 priv
->wmm_enabled
= enable
;
3298 struct mwl8k_cmd_mimo_config
{
3299 struct mwl8k_cmd_pkt header
;
3301 __u8 rx_antenna_map
;
3302 __u8 tx_antenna_map
;
3305 static int mwl8k_cmd_mimo_config(struct ieee80211_hw
*hw
, __u8 rx
, __u8 tx
)
3307 struct mwl8k_cmd_mimo_config
*cmd
;
3310 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3314 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MIMO_CONFIG
);
3315 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3316 cmd
->action
= cpu_to_le32((u32
)MWL8K_CMD_SET
);
3317 cmd
->rx_antenna_map
= rx
;
3318 cmd
->tx_antenna_map
= tx
;
3320 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3327 * CMD_USE_FIXED_RATE (STA version).
3329 struct mwl8k_cmd_use_fixed_rate_sta
{
3330 struct mwl8k_cmd_pkt header
;
3332 __le32 allow_rate_drop
;
3336 __le32 enable_retry
;
3345 #define MWL8K_USE_AUTO_RATE 0x0002
3346 #define MWL8K_UCAST_RATE 0
3348 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw
*hw
)
3350 struct mwl8k_cmd_use_fixed_rate_sta
*cmd
;
3353 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3357 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3358 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3359 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3360 cmd
->rate_type
= cpu_to_le32(MWL8K_UCAST_RATE
);
3362 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3369 * CMD_USE_FIXED_RATE (AP version).
3371 struct mwl8k_cmd_use_fixed_rate_ap
{
3372 struct mwl8k_cmd_pkt header
;
3374 __le32 allow_rate_drop
;
3376 struct mwl8k_rate_entry_ap
{
3378 __le32 enable_retry
;
3383 u8 multicast_rate_type
;
3388 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw
*hw
, int mcast
, int mgmt
)
3390 struct mwl8k_cmd_use_fixed_rate_ap
*cmd
;
3393 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3397 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3398 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3399 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3400 cmd
->multicast_rate
= mcast
;
3401 cmd
->management_rate
= mgmt
;
3403 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3410 * CMD_ENABLE_SNIFFER.
3412 struct mwl8k_cmd_enable_sniffer
{
3413 struct mwl8k_cmd_pkt header
;
3417 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw
*hw
, bool enable
)
3419 struct mwl8k_cmd_enable_sniffer
*cmd
;
3422 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3426 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER
);
3427 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3428 cmd
->action
= cpu_to_le32(!!enable
);
3430 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3436 struct mwl8k_cmd_update_mac_addr
{
3437 struct mwl8k_cmd_pkt header
;
3441 __u8 mac_addr
[ETH_ALEN
];
3443 __u8 mac_addr
[ETH_ALEN
];
3447 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3448 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3449 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3450 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3452 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw
*hw
,
3453 struct ieee80211_vif
*vif
, u8
*mac
, bool set
)
3455 struct mwl8k_priv
*priv
= hw
->priv
;
3456 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3457 struct mwl8k_cmd_update_mac_addr
*cmd
;
3461 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3462 if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3463 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->sta_macids_supported
))
3464 mac_type
= MWL8K_MAC_TYPE_PRIMARY_CLIENT
;
3466 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3467 } else if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_AP
) {
3468 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->ap_macids_supported
))
3469 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3471 mac_type
= MWL8K_MAC_TYPE_SECONDARY_AP
;
3474 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3479 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR
);
3481 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR
);
3483 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3485 cmd
->mbss
.mac_type
= cpu_to_le16(mac_type
);
3486 memcpy(cmd
->mbss
.mac_addr
, mac
, ETH_ALEN
);
3488 memcpy(cmd
->mac_addr
, mac
, ETH_ALEN
);
3491 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3498 * MWL8K_CMD_SET_MAC_ADDR.
3500 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw
*hw
,
3501 struct ieee80211_vif
*vif
, u8
*mac
)
3503 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, true);
3507 * MWL8K_CMD_DEL_MAC_ADDR.
3509 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw
*hw
,
3510 struct ieee80211_vif
*vif
, u8
*mac
)
3512 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, false);
3516 * CMD_SET_RATEADAPT_MODE.
3518 struct mwl8k_cmd_set_rate_adapt_mode
{
3519 struct mwl8k_cmd_pkt header
;
3524 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw
*hw
, __u16 mode
)
3526 struct mwl8k_cmd_set_rate_adapt_mode
*cmd
;
3529 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3533 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE
);
3534 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3535 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3536 cmd
->mode
= cpu_to_le16(mode
);
3538 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3545 * CMD_GET_WATCHDOG_BITMAP.
3547 struct mwl8k_cmd_get_watchdog_bitmap
{
3548 struct mwl8k_cmd_pkt header
;
3552 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw
*hw
, u8
*bitmap
)
3554 struct mwl8k_cmd_get_watchdog_bitmap
*cmd
;
3557 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3561 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP
);
3562 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3564 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3566 *bitmap
= cmd
->bitmap
;
3573 #define INVALID_BA 0xAA
3574 static void mwl8k_watchdog_ba_events(struct work_struct
*work
)
3577 u8 bitmap
= 0, stream_index
;
3578 struct mwl8k_ampdu_stream
*streams
;
3579 struct mwl8k_priv
*priv
=
3580 container_of(work
, struct mwl8k_priv
, watchdog_ba_handle
);
3582 rc
= mwl8k_cmd_get_watchdog_bitmap(priv
->hw
, &bitmap
);
3586 if (bitmap
== INVALID_BA
)
3589 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3590 stream_index
= bitmap
- MWL8K_TX_WMM_QUEUES
;
3592 BUG_ON(stream_index
>= priv
->num_ampdu_queues
);
3594 streams
= &priv
->ampdu
[stream_index
];
3596 if (streams
->state
== AMPDU_STREAM_ACTIVE
)
3597 ieee80211_stop_tx_ba_session(streams
->sta
, streams
->tid
);
3606 struct mwl8k_cmd_bss_start
{
3607 struct mwl8k_cmd_pkt header
;
3611 static int mwl8k_cmd_bss_start(struct ieee80211_hw
*hw
,
3612 struct ieee80211_vif
*vif
, int enable
)
3614 struct mwl8k_cmd_bss_start
*cmd
;
3617 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3621 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BSS_START
);
3622 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3623 cmd
->enable
= cpu_to_le32(enable
);
3625 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3636 * UPSTREAM is tx direction
3638 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3639 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3641 enum ba_stream_action_type
{
3650 struct mwl8k_create_ba_stream
{
3655 u8 peer_mac_addr
[6];
3661 u8 reset_seq_no_flag
;
3663 u8 sta_src_mac_addr
[6];
3666 struct mwl8k_destroy_ba_stream
{
3671 struct mwl8k_cmd_bastream
{
3672 struct mwl8k_cmd_pkt header
;
3675 struct mwl8k_create_ba_stream create_params
;
3676 struct mwl8k_destroy_ba_stream destroy_params
;
3681 mwl8k_check_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
3683 struct mwl8k_cmd_bastream
*cmd
;
3686 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3690 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3691 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3693 cmd
->action
= cpu_to_le32(MWL8K_BA_CHECK
);
3695 cmd
->create_params
.queue_id
= stream
->idx
;
3696 memcpy(&cmd
->create_params
.peer_mac_addr
[0], stream
->sta
->addr
,
3698 cmd
->create_params
.tid
= stream
->tid
;
3700 cmd
->create_params
.flags
=
3701 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
) |
3702 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3704 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3712 mwl8k_create_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3715 struct mwl8k_cmd_bastream
*cmd
;
3718 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3723 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3724 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3726 cmd
->action
= cpu_to_le32(MWL8K_BA_CREATE
);
3728 cmd
->create_params
.bar_thrs
= cpu_to_le32((u32
)buf_size
);
3729 cmd
->create_params
.window_size
= cpu_to_le32((u32
)buf_size
);
3730 cmd
->create_params
.queue_id
= stream
->idx
;
3732 memcpy(cmd
->create_params
.peer_mac_addr
, stream
->sta
->addr
, ETH_ALEN
);
3733 cmd
->create_params
.tid
= stream
->tid
;
3734 cmd
->create_params
.curr_seq_no
= cpu_to_le16(0);
3735 cmd
->create_params
.reset_seq_no_flag
= 1;
3737 cmd
->create_params
.param_info
=
3738 (stream
->sta
->ht_cap
.ampdu_factor
&
3739 IEEE80211_HT_AMPDU_PARM_FACTOR
) |
3740 ((stream
->sta
->ht_cap
.ampdu_density
<< 2) &
3741 IEEE80211_HT_AMPDU_PARM_DENSITY
);
3743 cmd
->create_params
.flags
=
3744 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
|
3745 BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3747 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3749 wiphy_debug(hw
->wiphy
, "Created a BA stream for %pM : tid %d\n",
3750 stream
->sta
->addr
, stream
->tid
);
3756 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
3757 struct mwl8k_ampdu_stream
*stream
)
3759 struct mwl8k_cmd_bastream
*cmd
;
3761 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3765 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3766 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3767 cmd
->action
= cpu_to_le32(MWL8K_BA_DESTROY
);
3769 cmd
->destroy_params
.ba_context
= cpu_to_le32(stream
->idx
);
3770 mwl8k_post_cmd(hw
, &cmd
->header
);
3772 wiphy_debug(hw
->wiphy
, "Deleted BA stream index %d\n", stream
->idx
);
3780 struct mwl8k_cmd_set_new_stn
{
3781 struct mwl8k_cmd_pkt header
;
3787 __le32 legacy_rates
;
3790 __le16 ht_capabilities_info
;
3791 __u8 mac_ht_param_info
;
3793 __u8 control_channel
;
3802 #define MWL8K_STA_ACTION_ADD 0
3803 #define MWL8K_STA_ACTION_REMOVE 2
3805 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw
*hw
,
3806 struct ieee80211_vif
*vif
,
3807 struct ieee80211_sta
*sta
)
3809 struct mwl8k_cmd_set_new_stn
*cmd
;
3813 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3817 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3818 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3819 cmd
->aid
= cpu_to_le16(sta
->aid
);
3820 memcpy(cmd
->mac_addr
, sta
->addr
, ETH_ALEN
);
3821 cmd
->stn_id
= cpu_to_le16(sta
->aid
);
3822 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_ADD
);
3823 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
3824 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
3826 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
3827 cmd
->legacy_rates
= cpu_to_le32(rates
);
3828 if (sta
->ht_cap
.ht_supported
) {
3829 cmd
->ht_rates
[0] = sta
->ht_cap
.mcs
.rx_mask
[0];
3830 cmd
->ht_rates
[1] = sta
->ht_cap
.mcs
.rx_mask
[1];
3831 cmd
->ht_rates
[2] = sta
->ht_cap
.mcs
.rx_mask
[2];
3832 cmd
->ht_rates
[3] = sta
->ht_cap
.mcs
.rx_mask
[3];
3833 cmd
->ht_capabilities_info
= cpu_to_le16(sta
->ht_cap
.cap
);
3834 cmd
->mac_ht_param_info
= (sta
->ht_cap
.ampdu_factor
& 3) |
3835 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
3836 cmd
->is_qos_sta
= 1;
3839 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3845 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw
*hw
,
3846 struct ieee80211_vif
*vif
)
3848 struct mwl8k_cmd_set_new_stn
*cmd
;
3851 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3855 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3856 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3857 memcpy(cmd
->mac_addr
, vif
->addr
, ETH_ALEN
);
3859 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3865 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw
*hw
,
3866 struct ieee80211_vif
*vif
, u8
*addr
)
3868 struct mwl8k_cmd_set_new_stn
*cmd
;
3871 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3875 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3876 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3877 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3878 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_REMOVE
);
3880 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3887 * CMD_UPDATE_ENCRYPTION.
3890 #define MAX_ENCR_KEY_LENGTH 16
3891 #define MIC_KEY_LENGTH 8
3893 struct mwl8k_cmd_update_encryption
{
3894 struct mwl8k_cmd_pkt header
;
3903 struct mwl8k_cmd_set_key
{
3904 struct mwl8k_cmd_pkt header
;
3913 __u8 key_material
[MAX_ENCR_KEY_LENGTH
];
3914 __u8 tkip_tx_mic_key
[MIC_KEY_LENGTH
];
3915 __u8 tkip_rx_mic_key
[MIC_KEY_LENGTH
];
3916 __le16 tkip_rsc_low
;
3917 __le32 tkip_rsc_high
;
3918 __le16 tkip_tsc_low
;
3919 __le32 tkip_tsc_high
;
3926 MWL8K_ENCR_REMOVE_KEY
,
3927 MWL8K_ENCR_SET_GROUP_KEY
,
3930 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
3931 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
3932 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
3933 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
3934 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
3942 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
3943 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
3944 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
3945 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
3946 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
3948 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw
*hw
,
3949 struct ieee80211_vif
*vif
,
3953 struct mwl8k_cmd_update_encryption
*cmd
;
3956 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3960 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
3961 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3962 cmd
->action
= cpu_to_le32(MWL8K_ENCR_ENABLE
);
3963 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3964 cmd
->encr_type
= encr_type
;
3966 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3972 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key
*cmd
,
3974 struct ieee80211_key_conf
*key
)
3976 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
3977 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3978 cmd
->length
= cpu_to_le16(sizeof(*cmd
) -
3979 offsetof(struct mwl8k_cmd_set_key
, length
));
3980 cmd
->key_id
= cpu_to_le32(key
->keyidx
);
3981 cmd
->key_len
= cpu_to_le16(key
->keylen
);
3982 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3984 switch (key
->cipher
) {
3985 case WLAN_CIPHER_SUITE_WEP40
:
3986 case WLAN_CIPHER_SUITE_WEP104
:
3987 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_WEP
);
3988 if (key
->keyidx
== 0)
3989 cmd
->key_info
= cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY
);
3992 case WLAN_CIPHER_SUITE_TKIP
:
3993 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_TKIP
);
3994 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
3995 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
3996 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
3997 cmd
->key_info
|= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
3998 | MWL8K_KEY_FLAG_TSC_VALID
);
4000 case WLAN_CIPHER_SUITE_CCMP
:
4001 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_CCMP
);
4002 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4003 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4004 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4013 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw
*hw
,
4014 struct ieee80211_vif
*vif
,
4016 struct ieee80211_key_conf
*key
)
4018 struct mwl8k_cmd_set_key
*cmd
;
4023 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4025 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4029 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4035 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4036 action
= MWL8K_ENCR_SET_KEY
;
4038 action
= MWL8K_ENCR_SET_GROUP_KEY
;
4040 switch (key
->cipher
) {
4041 case WLAN_CIPHER_SUITE_WEP40
:
4042 case WLAN_CIPHER_SUITE_WEP104
:
4043 if (!mwl8k_vif
->wep_key_conf
[idx
].enabled
) {
4044 memcpy(mwl8k_vif
->wep_key_conf
[idx
].key
, key
,
4045 sizeof(*key
) + key
->keylen
);
4046 mwl8k_vif
->wep_key_conf
[idx
].enabled
= 1;
4049 keymlen
= key
->keylen
;
4050 action
= MWL8K_ENCR_SET_KEY
;
4052 case WLAN_CIPHER_SUITE_TKIP
:
4053 keymlen
= MAX_ENCR_KEY_LENGTH
+ 2 * MIC_KEY_LENGTH
;
4055 case WLAN_CIPHER_SUITE_CCMP
:
4056 keymlen
= key
->keylen
;
4063 memcpy(cmd
->key_material
, key
->key
, keymlen
);
4064 cmd
->action
= cpu_to_le32(action
);
4066 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4073 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw
*hw
,
4074 struct ieee80211_vif
*vif
,
4076 struct ieee80211_key_conf
*key
)
4078 struct mwl8k_cmd_set_key
*cmd
;
4080 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4082 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4086 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4090 if (key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
4091 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
)
4092 mwl8k_vif
->wep_key_conf
[key
->keyidx
].enabled
= 0;
4094 cmd
->action
= cpu_to_le32(MWL8K_ENCR_REMOVE_KEY
);
4096 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4103 static int mwl8k_set_key(struct ieee80211_hw
*hw
,
4104 enum set_key_cmd cmd_param
,
4105 struct ieee80211_vif
*vif
,
4106 struct ieee80211_sta
*sta
,
4107 struct ieee80211_key_conf
*key
)
4112 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4114 if (vif
->type
== NL80211_IFTYPE_STATION
)
4122 if (cmd_param
== SET_KEY
) {
4123 rc
= mwl8k_cmd_encryption_set_key(hw
, vif
, addr
, key
);
4127 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
)
4128 || (key
->cipher
== WLAN_CIPHER_SUITE_WEP104
))
4129 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_WEP
;
4131 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED
;
4133 rc
= mwl8k_cmd_update_encryption_enable(hw
, vif
, addr
,
4138 mwl8k_vif
->is_hw_crypto_enabled
= true;
4141 rc
= mwl8k_cmd_encryption_remove_key(hw
, vif
, addr
, key
);
4153 struct ewc_ht_info
{
4159 struct peer_capability_info
{
4160 /* Peer type - AP vs. STA. */
4163 /* Basic 802.11 capabilities from assoc resp. */
4166 /* Set if peer supports 802.11n high throughput (HT). */
4169 /* Valid if HT is supported. */
4171 __u8 extended_ht_caps
;
4172 struct ewc_ht_info ewc_info
;
4174 /* Legacy rate table. Intersection of our rates and peer rates. */
4175 __u8 legacy_rates
[12];
4177 /* HT rate table. Intersection of our rates and peer rates. */
4181 /* If set, interoperability mode, no proprietary extensions. */
4185 __le16 amsdu_enabled
;
4188 struct mwl8k_cmd_update_stadb
{
4189 struct mwl8k_cmd_pkt header
;
4191 /* See STADB_ACTION_TYPE */
4194 /* Peer MAC address */
4195 __u8 peer_addr
[ETH_ALEN
];
4199 /* Peer info - valid during add/update. */
4200 struct peer_capability_info peer_info
;
4203 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4204 #define MWL8K_STA_DB_DEL_ENTRY 2
4206 /* Peer Entry flags - used to define the type of the peer node */
4207 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4209 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw
*hw
,
4210 struct ieee80211_vif
*vif
,
4211 struct ieee80211_sta
*sta
)
4213 struct mwl8k_cmd_update_stadb
*cmd
;
4214 struct peer_capability_info
*p
;
4218 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4222 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4223 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4224 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY
);
4225 memcpy(cmd
->peer_addr
, sta
->addr
, ETH_ALEN
);
4227 p
= &cmd
->peer_info
;
4228 p
->peer_type
= MWL8K_PEER_TYPE_ACCESSPOINT
;
4229 p
->basic_caps
= cpu_to_le16(vif
->bss_conf
.assoc_capability
);
4230 p
->ht_support
= sta
->ht_cap
.ht_supported
;
4231 p
->ht_caps
= cpu_to_le16(sta
->ht_cap
.cap
);
4232 p
->extended_ht_caps
= (sta
->ht_cap
.ampdu_factor
& 3) |
4233 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
4234 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
4235 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
4237 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4238 legacy_rate_mask_to_array(p
->legacy_rates
, rates
);
4239 memcpy(p
->ht_rates
, sta
->ht_cap
.mcs
.rx_mask
, 16);
4241 p
->amsdu_enabled
= 0;
4243 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4246 return rc
? rc
: p
->station_id
;
4249 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw
*hw
,
4250 struct ieee80211_vif
*vif
, u8
*addr
)
4252 struct mwl8k_cmd_update_stadb
*cmd
;
4255 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4259 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4260 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4261 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY
);
4262 memcpy(cmd
->peer_addr
, addr
, ETH_ALEN
);
4264 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4272 * Interrupt handling.
4274 static irqreturn_t
mwl8k_interrupt(int irq
, void *dev_id
)
4276 struct ieee80211_hw
*hw
= dev_id
;
4277 struct mwl8k_priv
*priv
= hw
->priv
;
4280 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4284 if (status
& MWL8K_A2H_INT_TX_DONE
) {
4285 status
&= ~MWL8K_A2H_INT_TX_DONE
;
4286 tasklet_schedule(&priv
->poll_tx_task
);
4289 if (status
& MWL8K_A2H_INT_RX_READY
) {
4290 status
&= ~MWL8K_A2H_INT_RX_READY
;
4291 tasklet_schedule(&priv
->poll_rx_task
);
4294 if (status
& MWL8K_A2H_INT_BA_WATCHDOG
) {
4295 status
&= ~MWL8K_A2H_INT_BA_WATCHDOG
;
4296 ieee80211_queue_work(hw
, &priv
->watchdog_ba_handle
);
4300 iowrite32(~status
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4302 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
4303 if (priv
->hostcmd_wait
!= NULL
)
4304 complete(priv
->hostcmd_wait
);
4307 if (status
& MWL8K_A2H_INT_QUEUE_EMPTY
) {
4308 if (!mutex_is_locked(&priv
->fw_mutex
) &&
4309 priv
->radio_on
&& priv
->pending_tx_pkts
)
4310 mwl8k_tx_start(priv
);
4316 static void mwl8k_tx_poll(unsigned long data
)
4318 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4319 struct mwl8k_priv
*priv
= hw
->priv
;
4325 spin_lock_bh(&priv
->tx_lock
);
4327 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4328 limit
-= mwl8k_txq_reclaim(hw
, i
, limit
, 0);
4330 if (!priv
->pending_tx_pkts
&& priv
->tx_wait
!= NULL
) {
4331 complete(priv
->tx_wait
);
4332 priv
->tx_wait
= NULL
;
4335 spin_unlock_bh(&priv
->tx_lock
);
4338 writel(~MWL8K_A2H_INT_TX_DONE
,
4339 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4341 tasklet_schedule(&priv
->poll_tx_task
);
4345 static void mwl8k_rx_poll(unsigned long data
)
4347 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4348 struct mwl8k_priv
*priv
= hw
->priv
;
4352 limit
-= rxq_process(hw
, 0, limit
);
4353 limit
-= rxq_refill(hw
, 0, limit
);
4356 writel(~MWL8K_A2H_INT_RX_READY
,
4357 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4359 tasklet_schedule(&priv
->poll_rx_task
);
4365 * Core driver operations.
4367 static void mwl8k_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
4369 struct mwl8k_priv
*priv
= hw
->priv
;
4370 int index
= skb_get_queue_mapping(skb
);
4372 if (!priv
->radio_on
) {
4373 wiphy_debug(hw
->wiphy
,
4374 "dropped TX frame since radio disabled\n");
4379 mwl8k_txq_xmit(hw
, index
, skb
);
4382 static int mwl8k_start(struct ieee80211_hw
*hw
)
4384 struct mwl8k_priv
*priv
= hw
->priv
;
4387 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
4388 IRQF_SHARED
, MWL8K_NAME
, hw
);
4391 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
4394 priv
->irq
= priv
->pdev
->irq
;
4396 /* Enable TX reclaim and RX tasklets. */
4397 tasklet_enable(&priv
->poll_tx_task
);
4398 tasklet_enable(&priv
->poll_rx_task
);
4400 /* Enable interrupts */
4401 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4402 iowrite32(MWL8K_A2H_EVENTS
,
4403 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4405 rc
= mwl8k_fw_lock(hw
);
4407 rc
= mwl8k_cmd_radio_enable(hw
);
4411 rc
= mwl8k_cmd_enable_sniffer(hw
, 0);
4414 rc
= mwl8k_cmd_set_pre_scan(hw
);
4417 rc
= mwl8k_cmd_set_post_scan(hw
,
4418 "\x00\x00\x00\x00\x00\x00");
4422 rc
= mwl8k_cmd_set_rateadapt_mode(hw
, 0);
4425 rc
= mwl8k_cmd_set_wmm_mode(hw
, 0);
4427 mwl8k_fw_unlock(hw
);
4431 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4432 free_irq(priv
->pdev
->irq
, hw
);
4434 tasklet_disable(&priv
->poll_tx_task
);
4435 tasklet_disable(&priv
->poll_rx_task
);
4441 static void mwl8k_stop(struct ieee80211_hw
*hw
)
4443 struct mwl8k_priv
*priv
= hw
->priv
;
4446 if (!priv
->hw_restart_in_progress
)
4447 mwl8k_cmd_radio_disable(hw
);
4449 ieee80211_stop_queues(hw
);
4451 /* Disable interrupts */
4452 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4453 if (priv
->irq
!= -1) {
4454 free_irq(priv
->pdev
->irq
, hw
);
4458 /* Stop finalize join worker */
4459 cancel_work_sync(&priv
->finalize_join_worker
);
4460 cancel_work_sync(&priv
->watchdog_ba_handle
);
4461 if (priv
->beacon_skb
!= NULL
)
4462 dev_kfree_skb(priv
->beacon_skb
);
4464 /* Stop TX reclaim and RX tasklets. */
4465 tasklet_disable(&priv
->poll_tx_task
);
4466 tasklet_disable(&priv
->poll_rx_task
);
4468 /* Return all skbs to mac80211 */
4469 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4470 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
4473 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
);
4475 static int mwl8k_add_interface(struct ieee80211_hw
*hw
,
4476 struct ieee80211_vif
*vif
)
4478 struct mwl8k_priv
*priv
= hw
->priv
;
4479 struct mwl8k_vif
*mwl8k_vif
;
4480 u32 macids_supported
;
4482 struct mwl8k_device_info
*di
;
4485 * Reject interface creation if sniffer mode is active, as
4486 * STA operation is mutually exclusive with hardware sniffer
4487 * mode. (Sniffer mode is only used on STA firmware.)
4489 if (priv
->sniffer_enabled
) {
4490 wiphy_info(hw
->wiphy
,
4491 "unable to create STA interface because sniffer mode is enabled\n");
4495 di
= priv
->device_info
;
4496 switch (vif
->type
) {
4497 case NL80211_IFTYPE_AP
:
4498 if (!priv
->ap_fw
&& di
->fw_image_ap
) {
4499 /* we must load the ap fw to meet this request */
4500 if (!list_empty(&priv
->vif_list
))
4502 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4506 macids_supported
= priv
->ap_macids_supported
;
4508 case NL80211_IFTYPE_STATION
:
4509 if (priv
->ap_fw
&& di
->fw_image_sta
) {
4510 /* we must load the sta fw to meet this request */
4511 if (!list_empty(&priv
->vif_list
))
4513 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4517 macids_supported
= priv
->sta_macids_supported
;
4523 macid
= ffs(macids_supported
& ~priv
->macids_used
);
4527 /* Setup driver private area. */
4528 mwl8k_vif
= MWL8K_VIF(vif
);
4529 memset(mwl8k_vif
, 0, sizeof(*mwl8k_vif
));
4530 mwl8k_vif
->vif
= vif
;
4531 mwl8k_vif
->macid
= macid
;
4532 mwl8k_vif
->seqno
= 0;
4533 memcpy(mwl8k_vif
->bssid
, vif
->addr
, ETH_ALEN
);
4534 mwl8k_vif
->is_hw_crypto_enabled
= false;
4536 /* Set the mac address. */
4537 mwl8k_cmd_set_mac_addr(hw
, vif
, vif
->addr
);
4540 mwl8k_cmd_set_new_stn_add_self(hw
, vif
);
4542 priv
->macids_used
|= 1 << mwl8k_vif
->macid
;
4543 list_add_tail(&mwl8k_vif
->list
, &priv
->vif_list
);
4548 static void mwl8k_remove_vif(struct mwl8k_priv
*priv
, struct mwl8k_vif
*vif
)
4550 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4551 if (!priv
->macids_used
)
4554 priv
->macids_used
&= ~(1 << vif
->macid
);
4555 list_del(&vif
->list
);
4558 static void mwl8k_remove_interface(struct ieee80211_hw
*hw
,
4559 struct ieee80211_vif
*vif
)
4561 struct mwl8k_priv
*priv
= hw
->priv
;
4562 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4565 mwl8k_cmd_set_new_stn_del(hw
, vif
, vif
->addr
);
4567 mwl8k_cmd_del_mac_addr(hw
, vif
, vif
->addr
);
4569 mwl8k_remove_vif(priv
, mwl8k_vif
);
4572 static void mwl8k_hw_restart_work(struct work_struct
*work
)
4574 struct mwl8k_priv
*priv
=
4575 container_of(work
, struct mwl8k_priv
, fw_reload
);
4576 struct ieee80211_hw
*hw
= priv
->hw
;
4577 struct mwl8k_device_info
*di
;
4580 /* If some command is waiting for a response, clear it */
4581 if (priv
->hostcmd_wait
!= NULL
) {
4582 complete(priv
->hostcmd_wait
);
4583 priv
->hostcmd_wait
= NULL
;
4586 priv
->hw_restart_owner
= current
;
4587 di
= priv
->device_info
;
4591 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4593 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4598 priv
->hw_restart_owner
= NULL
;
4599 priv
->hw_restart_in_progress
= false;
4602 * This unlock will wake up the queues and
4603 * also opens the command path for other
4606 mwl8k_fw_unlock(hw
);
4608 ieee80211_restart_hw(hw
);
4610 wiphy_err(hw
->wiphy
, "Firmware restarted successfully\n");
4614 mwl8k_fw_unlock(hw
);
4616 wiphy_err(hw
->wiphy
, "Firmware restart failed\n");
4619 static int mwl8k_config(struct ieee80211_hw
*hw
, u32 changed
)
4621 struct ieee80211_conf
*conf
= &hw
->conf
;
4622 struct mwl8k_priv
*priv
= hw
->priv
;
4625 if (conf
->flags
& IEEE80211_CONF_IDLE
) {
4626 mwl8k_cmd_radio_disable(hw
);
4630 rc
= mwl8k_fw_lock(hw
);
4634 rc
= mwl8k_cmd_radio_enable(hw
);
4638 rc
= mwl8k_cmd_set_rf_channel(hw
, conf
);
4642 if (conf
->power_level
> 18)
4643 conf
->power_level
= 18;
4647 if (conf
->flags
& IEEE80211_CONF_CHANGE_POWER
) {
4648 rc
= mwl8k_cmd_tx_power(hw
, conf
, conf
->power_level
);
4653 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_RX
, 0x3);
4655 wiphy_warn(hw
->wiphy
, "failed to set # of RX antennas");
4656 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_TX
, 0x7);
4658 wiphy_warn(hw
->wiphy
, "failed to set # of TX antennas");
4661 rc
= mwl8k_cmd_rf_tx_power(hw
, conf
->power_level
);
4664 rc
= mwl8k_cmd_mimo_config(hw
, 0x7, 0x7);
4668 mwl8k_fw_unlock(hw
);
4674 mwl8k_bss_info_changed_sta(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4675 struct ieee80211_bss_conf
*info
, u32 changed
)
4677 struct mwl8k_priv
*priv
= hw
->priv
;
4678 u32 ap_legacy_rates
= 0;
4679 u8 ap_mcs_rates
[16];
4682 if (mwl8k_fw_lock(hw
))
4686 * No need to capture a beacon if we're no longer associated.
4688 if ((changed
& BSS_CHANGED_ASSOC
) && !vif
->bss_conf
.assoc
)
4689 priv
->capture_beacon
= false;
4692 * Get the AP's legacy and MCS rates.
4694 if (vif
->bss_conf
.assoc
) {
4695 struct ieee80211_sta
*ap
;
4699 ap
= ieee80211_find_sta(vif
, vif
->bss_conf
.bssid
);
4705 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
) {
4706 ap_legacy_rates
= ap
->supp_rates
[IEEE80211_BAND_2GHZ
];
4709 ap
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4711 memcpy(ap_mcs_rates
, ap
->ht_cap
.mcs
.rx_mask
, 16);
4716 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
) {
4717 rc
= mwl8k_cmd_set_rate(hw
, vif
, ap_legacy_rates
, ap_mcs_rates
);
4721 rc
= mwl8k_cmd_use_fixed_rate_sta(hw
);
4726 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4727 rc
= mwl8k_set_radio_preamble(hw
,
4728 vif
->bss_conf
.use_short_preamble
);
4733 if (changed
& BSS_CHANGED_ERP_SLOT
) {
4734 rc
= mwl8k_cmd_set_slot(hw
, vif
->bss_conf
.use_short_slot
);
4739 if (vif
->bss_conf
.assoc
&&
4740 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_ERP_CTS_PROT
|
4742 rc
= mwl8k_cmd_set_aid(hw
, vif
, ap_legacy_rates
);
4747 if (vif
->bss_conf
.assoc
&&
4748 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_BEACON_INT
))) {
4750 * Finalize the join. Tell rx handler to process
4751 * next beacon from our BSSID.
4753 memcpy(priv
->capture_bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
4754 priv
->capture_beacon
= true;
4758 mwl8k_fw_unlock(hw
);
4762 mwl8k_bss_info_changed_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4763 struct ieee80211_bss_conf
*info
, u32 changed
)
4767 if (mwl8k_fw_lock(hw
))
4770 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4771 rc
= mwl8k_set_radio_preamble(hw
,
4772 vif
->bss_conf
.use_short_preamble
);
4777 if (changed
& BSS_CHANGED_BASIC_RATES
) {
4782 * Use lowest supported basic rate for multicasts
4783 * and management frames (such as probe responses --
4784 * beacons will always go out at 1 Mb/s).
4786 idx
= ffs(vif
->bss_conf
.basic_rates
);
4790 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
4791 rate
= mwl8k_rates_24
[idx
].hw_value
;
4793 rate
= mwl8k_rates_50
[idx
].hw_value
;
4795 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
4798 if (changed
& (BSS_CHANGED_BEACON_INT
| BSS_CHANGED_BEACON
)) {
4799 struct sk_buff
*skb
;
4801 skb
= ieee80211_beacon_get(hw
, vif
);
4803 mwl8k_cmd_set_beacon(hw
, vif
, skb
->data
, skb
->len
);
4808 if (changed
& BSS_CHANGED_BEACON_ENABLED
)
4809 mwl8k_cmd_bss_start(hw
, vif
, info
->enable_beacon
);
4812 mwl8k_fw_unlock(hw
);
4816 mwl8k_bss_info_changed(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4817 struct ieee80211_bss_conf
*info
, u32 changed
)
4819 struct mwl8k_priv
*priv
= hw
->priv
;
4822 mwl8k_bss_info_changed_sta(hw
, vif
, info
, changed
);
4824 mwl8k_bss_info_changed_ap(hw
, vif
, info
, changed
);
4827 static u64
mwl8k_prepare_multicast(struct ieee80211_hw
*hw
,
4828 struct netdev_hw_addr_list
*mc_list
)
4830 struct mwl8k_cmd_pkt
*cmd
;
4833 * Synthesize and return a command packet that programs the
4834 * hardware multicast address filter. At this point we don't
4835 * know whether FIF_ALLMULTI is being requested, but if it is,
4836 * we'll end up throwing this packet away and creating a new
4837 * one in mwl8k_configure_filter().
4839 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 0, mc_list
);
4841 return (unsigned long)cmd
;
4845 mwl8k_configure_filter_sniffer(struct ieee80211_hw
*hw
,
4846 unsigned int changed_flags
,
4847 unsigned int *total_flags
)
4849 struct mwl8k_priv
*priv
= hw
->priv
;
4852 * Hardware sniffer mode is mutually exclusive with STA
4853 * operation, so refuse to enable sniffer mode if a STA
4854 * interface is active.
4856 if (!list_empty(&priv
->vif_list
)) {
4857 if (net_ratelimit())
4858 wiphy_info(hw
->wiphy
,
4859 "not enabling sniffer mode because STA interface is active\n");
4863 if (!priv
->sniffer_enabled
) {
4864 if (mwl8k_cmd_enable_sniffer(hw
, 1))
4866 priv
->sniffer_enabled
= true;
4869 *total_flags
&= FIF_PROMISC_IN_BSS
| FIF_ALLMULTI
|
4870 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
|
4876 static struct mwl8k_vif
*mwl8k_first_vif(struct mwl8k_priv
*priv
)
4878 if (!list_empty(&priv
->vif_list
))
4879 return list_entry(priv
->vif_list
.next
, struct mwl8k_vif
, list
);
4884 static void mwl8k_configure_filter(struct ieee80211_hw
*hw
,
4885 unsigned int changed_flags
,
4886 unsigned int *total_flags
,
4889 struct mwl8k_priv
*priv
= hw
->priv
;
4890 struct mwl8k_cmd_pkt
*cmd
= (void *)(unsigned long)multicast
;
4893 * AP firmware doesn't allow fine-grained control over
4894 * the receive filter.
4897 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
4903 * Enable hardware sniffer mode if FIF_CONTROL or
4904 * FIF_OTHER_BSS is requested.
4906 if (*total_flags
& (FIF_CONTROL
| FIF_OTHER_BSS
) &&
4907 mwl8k_configure_filter_sniffer(hw
, changed_flags
, total_flags
)) {
4912 /* Clear unsupported feature flags */
4913 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
4915 if (mwl8k_fw_lock(hw
)) {
4920 if (priv
->sniffer_enabled
) {
4921 mwl8k_cmd_enable_sniffer(hw
, 0);
4922 priv
->sniffer_enabled
= false;
4925 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
4926 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
) {
4928 * Disable the BSS filter.
4930 mwl8k_cmd_set_pre_scan(hw
);
4932 struct mwl8k_vif
*mwl8k_vif
;
4936 * Enable the BSS filter.
4938 * If there is an active STA interface, use that
4939 * interface's BSSID, otherwise use a dummy one
4940 * (where the OUI part needs to be nonzero for
4941 * the BSSID to be accepted by POST_SCAN).
4943 mwl8k_vif
= mwl8k_first_vif(priv
);
4944 if (mwl8k_vif
!= NULL
)
4945 bssid
= mwl8k_vif
->vif
->bss_conf
.bssid
;
4947 bssid
= "\x01\x00\x00\x00\x00\x00";
4949 mwl8k_cmd_set_post_scan(hw
, bssid
);
4954 * If FIF_ALLMULTI is being requested, throw away the command
4955 * packet that ->prepare_multicast() built and replace it with
4956 * a command packet that enables reception of all multicast
4959 if (*total_flags
& FIF_ALLMULTI
) {
4961 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 1, NULL
);
4965 mwl8k_post_cmd(hw
, cmd
);
4969 mwl8k_fw_unlock(hw
);
4972 static int mwl8k_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
4974 return mwl8k_cmd_set_rts_threshold(hw
, value
);
4977 static int mwl8k_sta_remove(struct ieee80211_hw
*hw
,
4978 struct ieee80211_vif
*vif
,
4979 struct ieee80211_sta
*sta
)
4981 struct mwl8k_priv
*priv
= hw
->priv
;
4984 return mwl8k_cmd_set_new_stn_del(hw
, vif
, sta
->addr
);
4986 return mwl8k_cmd_update_stadb_del(hw
, vif
, sta
->addr
);
4989 static int mwl8k_sta_add(struct ieee80211_hw
*hw
,
4990 struct ieee80211_vif
*vif
,
4991 struct ieee80211_sta
*sta
)
4993 struct mwl8k_priv
*priv
= hw
->priv
;
4996 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4997 struct ieee80211_key_conf
*key
;
5000 ret
= mwl8k_cmd_update_stadb_add(hw
, vif
, sta
);
5002 MWL8K_STA(sta
)->peer_id
= ret
;
5003 if (sta
->ht_cap
.ht_supported
)
5004 MWL8K_STA(sta
)->is_ampdu_allowed
= true;
5009 ret
= mwl8k_cmd_set_new_stn_add(hw
, vif
, sta
);
5012 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
5013 key
= IEEE80211_KEY_CONF(mwl8k_vif
->wep_key_conf
[i
].key
);
5014 if (mwl8k_vif
->wep_key_conf
[i
].enabled
)
5015 mwl8k_set_key(hw
, SET_KEY
, vif
, sta
, key
);
5020 static int mwl8k_conf_tx(struct ieee80211_hw
*hw
,
5021 struct ieee80211_vif
*vif
, u16 queue
,
5022 const struct ieee80211_tx_queue_params
*params
)
5024 struct mwl8k_priv
*priv
= hw
->priv
;
5027 rc
= mwl8k_fw_lock(hw
);
5029 BUG_ON(queue
> MWL8K_TX_WMM_QUEUES
- 1);
5030 memcpy(&priv
->wmm_params
[queue
], params
, sizeof(*params
));
5032 if (!priv
->wmm_enabled
)
5033 rc
= mwl8k_cmd_set_wmm_mode(hw
, 1);
5036 int q
= MWL8K_TX_WMM_QUEUES
- 1 - queue
;
5037 rc
= mwl8k_cmd_set_edca_params(hw
, q
,
5044 mwl8k_fw_unlock(hw
);
5050 static int mwl8k_get_stats(struct ieee80211_hw
*hw
,
5051 struct ieee80211_low_level_stats
*stats
)
5053 return mwl8k_cmd_get_stat(hw
, stats
);
5056 static int mwl8k_get_survey(struct ieee80211_hw
*hw
, int idx
,
5057 struct survey_info
*survey
)
5059 struct mwl8k_priv
*priv
= hw
->priv
;
5060 struct ieee80211_conf
*conf
= &hw
->conf
;
5065 survey
->channel
= conf
->channel
;
5066 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
5067 survey
->noise
= priv
->noise
;
5072 #define MAX_AMPDU_ATTEMPTS 5
5075 mwl8k_ampdu_action(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5076 enum ieee80211_ampdu_mlme_action action
,
5077 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
5082 struct mwl8k_priv
*priv
= hw
->priv
;
5083 struct mwl8k_ampdu_stream
*stream
;
5084 u8
*addr
= sta
->addr
;
5086 if (!(hw
->flags
& IEEE80211_HW_AMPDU_AGGREGATION
))
5089 spin_lock(&priv
->stream_lock
);
5090 stream
= mwl8k_lookup_stream(hw
, addr
, tid
);
5093 case IEEE80211_AMPDU_RX_START
:
5094 case IEEE80211_AMPDU_RX_STOP
:
5096 case IEEE80211_AMPDU_TX_START
:
5097 /* By the time we get here the hw queues may contain outgoing
5098 * packets for this RA/TID that are not part of this BA
5099 * session. The hw will assign sequence numbers to these
5100 * packets as they go out. So if we query the hw for its next
5101 * sequence number and use that for the SSN here, it may end up
5102 * being wrong, which will lead to sequence number mismatch at
5103 * the recipient. To avoid this, we reset the sequence number
5104 * to O for the first MPDU in this BA stream.
5107 if (stream
== NULL
) {
5108 /* This means that somebody outside this driver called
5109 * ieee80211_start_tx_ba_session. This is unexpected
5110 * because we do our own rate control. Just warn and
5113 wiphy_warn(hw
->wiphy
, "Unexpected call to %s. "
5114 "Proceeding anyway.\n", __func__
);
5115 stream
= mwl8k_add_stream(hw
, sta
, tid
);
5117 if (stream
== NULL
) {
5118 wiphy_debug(hw
->wiphy
, "no free AMPDU streams\n");
5122 stream
->state
= AMPDU_STREAM_IN_PROGRESS
;
5124 /* Release the lock before we do the time consuming stuff */
5125 spin_unlock(&priv
->stream_lock
);
5126 for (i
= 0; i
< MAX_AMPDU_ATTEMPTS
; i
++) {
5127 rc
= mwl8k_check_ba(hw
, stream
);
5129 /* If HW restart is in progress mwl8k_post_cmd will
5130 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5133 if (!rc
|| rc
== -EBUSY
)
5136 * HW queues take time to be flushed, give them
5142 spin_lock(&priv
->stream_lock
);
5144 wiphy_err(hw
->wiphy
, "Stream for tid %d busy after %d"
5145 " attempts\n", tid
, MAX_AMPDU_ATTEMPTS
);
5146 mwl8k_remove_stream(hw
, stream
);
5150 ieee80211_start_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5152 case IEEE80211_AMPDU_TX_STOP
:
5154 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
5155 spin_unlock(&priv
->stream_lock
);
5156 mwl8k_destroy_ba(hw
, stream
);
5157 spin_lock(&priv
->stream_lock
);
5159 mwl8k_remove_stream(hw
, stream
);
5161 ieee80211_stop_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5163 case IEEE80211_AMPDU_TX_OPERATIONAL
:
5164 BUG_ON(stream
== NULL
);
5165 BUG_ON(stream
->state
!= AMPDU_STREAM_IN_PROGRESS
);
5166 spin_unlock(&priv
->stream_lock
);
5167 rc
= mwl8k_create_ba(hw
, stream
, buf_size
);
5168 spin_lock(&priv
->stream_lock
);
5170 stream
->state
= AMPDU_STREAM_ACTIVE
;
5172 spin_unlock(&priv
->stream_lock
);
5173 mwl8k_destroy_ba(hw
, stream
);
5174 spin_lock(&priv
->stream_lock
);
5175 wiphy_debug(hw
->wiphy
,
5176 "Failed adding stream for sta %pM tid %d\n",
5178 mwl8k_remove_stream(hw
, stream
);
5186 spin_unlock(&priv
->stream_lock
);
5190 static const struct ieee80211_ops mwl8k_ops
= {
5192 .start
= mwl8k_start
,
5194 .add_interface
= mwl8k_add_interface
,
5195 .remove_interface
= mwl8k_remove_interface
,
5196 .config
= mwl8k_config
,
5197 .bss_info_changed
= mwl8k_bss_info_changed
,
5198 .prepare_multicast
= mwl8k_prepare_multicast
,
5199 .configure_filter
= mwl8k_configure_filter
,
5200 .set_key
= mwl8k_set_key
,
5201 .set_rts_threshold
= mwl8k_set_rts_threshold
,
5202 .sta_add
= mwl8k_sta_add
,
5203 .sta_remove
= mwl8k_sta_remove
,
5204 .conf_tx
= mwl8k_conf_tx
,
5205 .get_stats
= mwl8k_get_stats
,
5206 .get_survey
= mwl8k_get_survey
,
5207 .ampdu_action
= mwl8k_ampdu_action
,
5210 static void mwl8k_finalize_join_worker(struct work_struct
*work
)
5212 struct mwl8k_priv
*priv
=
5213 container_of(work
, struct mwl8k_priv
, finalize_join_worker
);
5214 struct sk_buff
*skb
= priv
->beacon_skb
;
5215 struct ieee80211_mgmt
*mgmt
= (void *)skb
->data
;
5216 int len
= skb
->len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
5217 const u8
*tim
= cfg80211_find_ie(WLAN_EID_TIM
,
5218 mgmt
->u
.beacon
.variable
, len
);
5219 int dtim_period
= 1;
5221 if (tim
&& tim
[1] >= 2)
5222 dtim_period
= tim
[3];
5224 mwl8k_cmd_finalize_join(priv
->hw
, skb
->data
, skb
->len
, dtim_period
);
5227 priv
->beacon_skb
= NULL
;
5236 #define MWL8K_8366_AP_FW_API 2
5237 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5238 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5240 static struct mwl8k_device_info mwl8k_info_tbl
[] __devinitdata
= {
5242 .part_name
= "88w8363",
5243 .helper_image
= "mwl8k/helper_8363.fw",
5244 .fw_image_sta
= "mwl8k/fmimage_8363.fw",
5247 .part_name
= "88w8687",
5248 .helper_image
= "mwl8k/helper_8687.fw",
5249 .fw_image_sta
= "mwl8k/fmimage_8687.fw",
5252 .part_name
= "88w8366",
5253 .helper_image
= "mwl8k/helper_8366.fw",
5254 .fw_image_sta
= "mwl8k/fmimage_8366.fw",
5255 .fw_image_ap
= MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
),
5256 .fw_api_ap
= MWL8K_8366_AP_FW_API
,
5257 .ap_rxd_ops
= &rxd_8366_ap_ops
,
5261 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5262 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5263 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5264 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5265 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5266 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5267 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
));
5269 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table
) = {
5270 { PCI_VDEVICE(MARVELL
, 0x2a0a), .driver_data
= MWL8363
, },
5271 { PCI_VDEVICE(MARVELL
, 0x2a0c), .driver_data
= MWL8363
, },
5272 { PCI_VDEVICE(MARVELL
, 0x2a24), .driver_data
= MWL8363
, },
5273 { PCI_VDEVICE(MARVELL
, 0x2a2b), .driver_data
= MWL8687
, },
5274 { PCI_VDEVICE(MARVELL
, 0x2a30), .driver_data
= MWL8687
, },
5275 { PCI_VDEVICE(MARVELL
, 0x2a40), .driver_data
= MWL8366
, },
5276 { PCI_VDEVICE(MARVELL
, 0x2a43), .driver_data
= MWL8366
, },
5279 MODULE_DEVICE_TABLE(pci
, mwl8k_pci_id_table
);
5281 static int mwl8k_request_alt_fw(struct mwl8k_priv
*priv
)
5284 printk(KERN_ERR
"%s: Error requesting preferred fw %s.\n"
5285 "Trying alternative firmware %s\n", pci_name(priv
->pdev
),
5286 priv
->fw_pref
, priv
->fw_alt
);
5287 rc
= mwl8k_request_fw(priv
, priv
->fw_alt
, &priv
->fw_ucode
, true);
5289 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5290 pci_name(priv
->pdev
), priv
->fw_alt
);
5296 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
);
5297 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
)
5299 struct mwl8k_priv
*priv
= context
;
5300 struct mwl8k_device_info
*di
= priv
->device_info
;
5303 switch (priv
->fw_state
) {
5306 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
5307 pci_name(priv
->pdev
), di
->helper_image
);
5310 priv
->fw_helper
= fw
;
5311 rc
= mwl8k_request_fw(priv
, priv
->fw_pref
, &priv
->fw_ucode
,
5313 if (rc
&& priv
->fw_alt
) {
5314 rc
= mwl8k_request_alt_fw(priv
);
5317 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5321 priv
->fw_state
= FW_STATE_LOADING_PREF
;
5324 case FW_STATE_LOADING_PREF
:
5327 rc
= mwl8k_request_alt_fw(priv
);
5330 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5334 priv
->fw_ucode
= fw
;
5335 rc
= mwl8k_firmware_load_success(priv
);
5339 complete(&priv
->firmware_loading_complete
);
5343 case FW_STATE_LOADING_ALT
:
5345 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5346 pci_name(priv
->pdev
), di
->helper_image
);
5349 priv
->fw_ucode
= fw
;
5350 rc
= mwl8k_firmware_load_success(priv
);
5354 complete(&priv
->firmware_loading_complete
);
5358 printk(KERN_ERR
"%s: Unexpected firmware loading state: %d\n",
5359 MWL8K_NAME
, priv
->fw_state
);
5366 priv
->fw_state
= FW_STATE_ERROR
;
5367 complete(&priv
->firmware_loading_complete
);
5368 device_release_driver(&priv
->pdev
->dev
);
5369 mwl8k_release_firmware(priv
);
5372 #define MAX_RESTART_ATTEMPTS 1
5373 static int mwl8k_init_firmware(struct ieee80211_hw
*hw
, char *fw_image
,
5376 struct mwl8k_priv
*priv
= hw
->priv
;
5378 int count
= MAX_RESTART_ATTEMPTS
;
5381 /* Reset firmware and hardware */
5382 mwl8k_hw_reset(priv
);
5384 /* Ask userland hotplug daemon for the device firmware */
5385 rc
= mwl8k_request_firmware(priv
, fw_image
, nowait
);
5387 wiphy_err(hw
->wiphy
, "Firmware files not found\n");
5394 /* Load firmware into hardware */
5395 rc
= mwl8k_load_firmware(hw
);
5397 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5399 /* Reclaim memory once firmware is successfully loaded */
5400 mwl8k_release_firmware(priv
);
5403 /* FW did not start successfully;
5404 * lets try one more time
5407 wiphy_err(hw
->wiphy
, "Trying to reload the firmware again\n");
5415 static int mwl8k_init_txqs(struct ieee80211_hw
*hw
)
5417 struct mwl8k_priv
*priv
= hw
->priv
;
5421 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
5422 rc
= mwl8k_txq_init(hw
, i
);
5426 iowrite32(priv
->txq
[i
].txd_dma
,
5427 priv
->sram
+ priv
->txq_offset
[i
]);
5432 /* initialize hw after successfully loading a firmware image */
5433 static int mwl8k_probe_hw(struct ieee80211_hw
*hw
)
5435 struct mwl8k_priv
*priv
= hw
->priv
;
5440 priv
->rxd_ops
= priv
->device_info
->ap_rxd_ops
;
5441 if (priv
->rxd_ops
== NULL
) {
5442 wiphy_err(hw
->wiphy
,
5443 "Driver does not have AP firmware image support for this hardware\n");
5444 goto err_stop_firmware
;
5447 priv
->rxd_ops
= &rxd_sta_ops
;
5450 priv
->sniffer_enabled
= false;
5451 priv
->wmm_enabled
= false;
5452 priv
->pending_tx_pkts
= 0;
5454 rc
= mwl8k_rxq_init(hw
, 0);
5456 goto err_stop_firmware
;
5457 rxq_refill(hw
, 0, INT_MAX
);
5459 /* For the sta firmware, we need to know the dma addresses of tx queues
5460 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5461 * prior to issuing this command. But for the AP case, we learn the
5462 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5463 * case we must initialize the tx queues after.
5465 priv
->num_ampdu_queues
= 0;
5467 rc
= mwl8k_init_txqs(hw
);
5469 goto err_free_queues
;
5472 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
5473 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5474 iowrite32(MWL8K_A2H_INT_TX_DONE
|MWL8K_A2H_INT_RX_READY
|
5475 MWL8K_A2H_INT_BA_WATCHDOG
,
5476 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL
);
5477 iowrite32(MWL8K_A2H_INT_OPC_DONE
,
5478 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
5480 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
5481 IRQF_SHARED
, MWL8K_NAME
, hw
);
5483 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
5484 goto err_free_queues
;
5488 * When hw restart is requested,
5489 * mac80211 will take care of clearing
5490 * the ampdu streams, so do not clear
5491 * the ampdu state here
5493 if (!priv
->hw_restart_in_progress
)
5494 memset(priv
->ampdu
, 0, sizeof(priv
->ampdu
));
5497 * Temporarily enable interrupts. Initial firmware host
5498 * commands use interrupts and avoid polling. Disable
5499 * interrupts when done.
5501 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5503 /* Get config data, mac addrs etc */
5505 rc
= mwl8k_cmd_get_hw_spec_ap(hw
);
5507 rc
= mwl8k_init_txqs(hw
);
5509 rc
= mwl8k_cmd_set_hw_spec(hw
);
5511 rc
= mwl8k_cmd_get_hw_spec_sta(hw
);
5514 wiphy_err(hw
->wiphy
, "Cannot initialise firmware\n");
5518 /* Turn radio off */
5519 rc
= mwl8k_cmd_radio_disable(hw
);
5521 wiphy_err(hw
->wiphy
, "Cannot disable\n");
5525 /* Clear MAC address */
5526 rc
= mwl8k_cmd_set_mac_addr(hw
, NULL
, "\x00\x00\x00\x00\x00\x00");
5528 wiphy_err(hw
->wiphy
, "Cannot clear MAC address\n");
5532 /* Disable interrupts */
5533 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5534 free_irq(priv
->pdev
->irq
, hw
);
5536 wiphy_info(hw
->wiphy
, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5537 priv
->device_info
->part_name
,
5538 priv
->hw_rev
, hw
->wiphy
->perm_addr
,
5539 priv
->ap_fw
? "AP" : "STA",
5540 (priv
->fw_rev
>> 24) & 0xff, (priv
->fw_rev
>> 16) & 0xff,
5541 (priv
->fw_rev
>> 8) & 0xff, priv
->fw_rev
& 0xff);
5546 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5547 free_irq(priv
->pdev
->irq
, hw
);
5550 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5551 mwl8k_txq_deinit(hw
, i
);
5552 mwl8k_rxq_deinit(hw
, 0);
5555 mwl8k_hw_reset(priv
);
5561 * invoke mwl8k_reload_firmware to change the firmware image after the device
5562 * has already been registered
5564 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
)
5567 struct mwl8k_priv
*priv
= hw
->priv
;
5568 struct mwl8k_vif
*vif
, *tmp_vif
;
5571 mwl8k_rxq_deinit(hw
, 0);
5574 * All the existing interfaces are re-added by the ieee80211_reconfig;
5575 * which means driver should remove existing interfaces before calling
5576 * ieee80211_restart_hw
5578 if (priv
->hw_restart_in_progress
)
5579 list_for_each_entry_safe(vif
, tmp_vif
, &priv
->vif_list
, list
)
5580 mwl8k_remove_vif(priv
, vif
);
5582 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5583 mwl8k_txq_deinit(hw
, i
);
5585 rc
= mwl8k_init_firmware(hw
, fw_image
, false);
5589 rc
= mwl8k_probe_hw(hw
);
5593 if (priv
->hw_restart_in_progress
)
5596 rc
= mwl8k_start(hw
);
5600 rc
= mwl8k_config(hw
, ~0);
5604 for (i
= 0; i
< MWL8K_TX_WMM_QUEUES
; i
++) {
5605 rc
= mwl8k_conf_tx(hw
, NULL
, i
, &priv
->wmm_params
[i
]);
5613 printk(KERN_WARNING
"mwl8k: Failed to reload firmware image.\n");
5617 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
)
5619 struct ieee80211_hw
*hw
= priv
->hw
;
5622 rc
= mwl8k_load_firmware(hw
);
5623 mwl8k_release_firmware(priv
);
5625 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5630 * Extra headroom is the size of the required DMA header
5631 * minus the size of the smallest 802.11 frame (CTS frame).
5633 hw
->extra_tx_headroom
=
5634 sizeof(struct mwl8k_dma_data
) - sizeof(struct ieee80211_cts
);
5636 hw
->extra_tx_headroom
-= priv
->ap_fw
? REDUCED_TX_HEADROOM
: 0;
5638 hw
->channel_change_time
= 10;
5640 hw
->queues
= MWL8K_TX_WMM_QUEUES
;
5642 /* Set rssi values to dBm */
5643 hw
->flags
|= IEEE80211_HW_SIGNAL_DBM
| IEEE80211_HW_HAS_RATE_CONTROL
;
5646 * Ask mac80211 to not to trigger PS mode
5647 * based on PM bit of incoming frames.
5650 hw
->flags
|= IEEE80211_HW_AP_LINK_PS
;
5652 hw
->vif_data_size
= sizeof(struct mwl8k_vif
);
5653 hw
->sta_data_size
= sizeof(struct mwl8k_sta
);
5655 priv
->macids_used
= 0;
5656 INIT_LIST_HEAD(&priv
->vif_list
);
5658 /* Set default radio state and preamble */
5659 priv
->radio_on
= false;
5660 priv
->radio_short_preamble
= false;
5662 /* Finalize join worker */
5663 INIT_WORK(&priv
->finalize_join_worker
, mwl8k_finalize_join_worker
);
5664 /* Handle watchdog ba events */
5665 INIT_WORK(&priv
->watchdog_ba_handle
, mwl8k_watchdog_ba_events
);
5666 /* To reload the firmware if it crashes */
5667 INIT_WORK(&priv
->fw_reload
, mwl8k_hw_restart_work
);
5669 /* TX reclaim and RX tasklets. */
5670 tasklet_init(&priv
->poll_tx_task
, mwl8k_tx_poll
, (unsigned long)hw
);
5671 tasklet_disable(&priv
->poll_tx_task
);
5672 tasklet_init(&priv
->poll_rx_task
, mwl8k_rx_poll
, (unsigned long)hw
);
5673 tasklet_disable(&priv
->poll_rx_task
);
5675 /* Power management cookie */
5676 priv
->cookie
= pci_alloc_consistent(priv
->pdev
, 4, &priv
->cookie_dma
);
5677 if (priv
->cookie
== NULL
)
5680 mutex_init(&priv
->fw_mutex
);
5681 priv
->fw_mutex_owner
= NULL
;
5682 priv
->fw_mutex_depth
= 0;
5683 priv
->hostcmd_wait
= NULL
;
5685 spin_lock_init(&priv
->tx_lock
);
5687 spin_lock_init(&priv
->stream_lock
);
5689 priv
->tx_wait
= NULL
;
5691 rc
= mwl8k_probe_hw(hw
);
5693 goto err_free_cookie
;
5695 hw
->wiphy
->interface_modes
= 0;
5696 if (priv
->ap_macids_supported
|| priv
->device_info
->fw_image_ap
)
5697 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_AP
);
5698 if (priv
->sta_macids_supported
|| priv
->device_info
->fw_image_sta
)
5699 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
5701 rc
= ieee80211_register_hw(hw
);
5703 wiphy_err(hw
->wiphy
, "Cannot register device\n");
5704 goto err_unprobe_hw
;
5710 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5711 mwl8k_txq_deinit(hw
, i
);
5712 mwl8k_rxq_deinit(hw
, 0);
5715 if (priv
->cookie
!= NULL
)
5716 pci_free_consistent(priv
->pdev
, 4,
5717 priv
->cookie
, priv
->cookie_dma
);
5721 static int __devinit
mwl8k_probe(struct pci_dev
*pdev
,
5722 const struct pci_device_id
*id
)
5724 static int printed_version
;
5725 struct ieee80211_hw
*hw
;
5726 struct mwl8k_priv
*priv
;
5727 struct mwl8k_device_info
*di
;
5730 if (!printed_version
) {
5731 printk(KERN_INFO
"%s version %s\n", MWL8K_DESC
, MWL8K_VERSION
);
5732 printed_version
= 1;
5736 rc
= pci_enable_device(pdev
);
5738 printk(KERN_ERR
"%s: Cannot enable new PCI device\n",
5743 rc
= pci_request_regions(pdev
, MWL8K_NAME
);
5745 printk(KERN_ERR
"%s: Cannot obtain PCI resources\n",
5747 goto err_disable_device
;
5750 pci_set_master(pdev
);
5753 hw
= ieee80211_alloc_hw(sizeof(*priv
), &mwl8k_ops
);
5755 printk(KERN_ERR
"%s: ieee80211 alloc failed\n", MWL8K_NAME
);
5760 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
5761 pci_set_drvdata(pdev
, hw
);
5766 priv
->device_info
= &mwl8k_info_tbl
[id
->driver_data
];
5769 priv
->sram
= pci_iomap(pdev
, 0, 0x10000);
5770 if (priv
->sram
== NULL
) {
5771 wiphy_err(hw
->wiphy
, "Cannot map device SRAM\n");
5776 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
5777 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
5779 priv
->regs
= pci_iomap(pdev
, 1, 0x10000);
5780 if (priv
->regs
== NULL
) {
5781 priv
->regs
= pci_iomap(pdev
, 2, 0x10000);
5782 if (priv
->regs
== NULL
) {
5783 wiphy_err(hw
->wiphy
, "Cannot map device registers\n");
5789 * Choose the initial fw image depending on user input. If a second
5790 * image is available, make it the alternative image that will be
5791 * loaded if the first one fails.
5793 init_completion(&priv
->firmware_loading_complete
);
5794 di
= priv
->device_info
;
5795 if (ap_mode_default
&& di
->fw_image_ap
) {
5796 priv
->fw_pref
= di
->fw_image_ap
;
5797 priv
->fw_alt
= di
->fw_image_sta
;
5798 } else if (!ap_mode_default
&& di
->fw_image_sta
) {
5799 priv
->fw_pref
= di
->fw_image_sta
;
5800 priv
->fw_alt
= di
->fw_image_ap
;
5801 } else if (ap_mode_default
&& !di
->fw_image_ap
&& di
->fw_image_sta
) {
5802 printk(KERN_WARNING
"AP fw is unavailable. Using STA fw.");
5803 priv
->fw_pref
= di
->fw_image_sta
;
5804 } else if (!ap_mode_default
&& !di
->fw_image_sta
&& di
->fw_image_ap
) {
5805 printk(KERN_WARNING
"STA fw is unavailable. Using AP fw.");
5806 priv
->fw_pref
= di
->fw_image_ap
;
5808 rc
= mwl8k_init_firmware(hw
, priv
->fw_pref
, true);
5810 goto err_stop_firmware
;
5812 priv
->hw_restart_in_progress
= false;
5817 mwl8k_hw_reset(priv
);
5820 if (priv
->regs
!= NULL
)
5821 pci_iounmap(pdev
, priv
->regs
);
5823 if (priv
->sram
!= NULL
)
5824 pci_iounmap(pdev
, priv
->sram
);
5826 pci_set_drvdata(pdev
, NULL
);
5827 ieee80211_free_hw(hw
);
5830 pci_release_regions(pdev
);
5833 pci_disable_device(pdev
);
5838 static void __devexit
mwl8k_shutdown(struct pci_dev
*pdev
)
5840 printk(KERN_ERR
"===>%s(%u)\n", __func__
, __LINE__
);
5843 static void __devexit
mwl8k_remove(struct pci_dev
*pdev
)
5845 struct ieee80211_hw
*hw
= pci_get_drvdata(pdev
);
5846 struct mwl8k_priv
*priv
;
5853 wait_for_completion(&priv
->firmware_loading_complete
);
5855 if (priv
->fw_state
== FW_STATE_ERROR
) {
5856 mwl8k_hw_reset(priv
);
5860 ieee80211_stop_queues(hw
);
5862 ieee80211_unregister_hw(hw
);
5864 /* Remove TX reclaim and RX tasklets. */
5865 tasklet_kill(&priv
->poll_tx_task
);
5866 tasklet_kill(&priv
->poll_rx_task
);
5869 mwl8k_hw_reset(priv
);
5871 /* Return all skbs to mac80211 */
5872 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5873 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
5875 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5876 mwl8k_txq_deinit(hw
, i
);
5878 mwl8k_rxq_deinit(hw
, 0);
5880 pci_free_consistent(priv
->pdev
, 4, priv
->cookie
, priv
->cookie_dma
);
5883 pci_iounmap(pdev
, priv
->regs
);
5884 pci_iounmap(pdev
, priv
->sram
);
5885 pci_set_drvdata(pdev
, NULL
);
5886 ieee80211_free_hw(hw
);
5887 pci_release_regions(pdev
);
5888 pci_disable_device(pdev
);
5891 static struct pci_driver mwl8k_driver
= {
5893 .id_table
= mwl8k_pci_id_table
,
5894 .probe
= mwl8k_probe
,
5895 .remove
= __devexit_p(mwl8k_remove
),
5896 .shutdown
= __devexit_p(mwl8k_shutdown
),
5899 module_pci_driver(mwl8k_driver
);
5901 MODULE_DESCRIPTION(MWL8K_DESC
);
5902 MODULE_VERSION(MWL8K_VERSION
);
5903 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
5904 MODULE_LICENSE("GPL");