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
)) {
1668 sta
= info
->control
.sta
;
1670 sta_info
= MWL8K_STA(sta
);
1671 BUG_ON(sta_info
== NULL
);
1672 rate_info
= le16_to_cpu(tx_desc
->rate_info
);
1673 /* If rate is < 6.5 Mpbs for an ht station
1674 * do not form an ampdu. If the station is a
1675 * legacy station (format = 0), do not form an
1678 if (RI_RATE_ID_MCS(rate_info
) < 1 ||
1679 RI_FORMAT(rate_info
) == 0) {
1680 sta_info
->is_ampdu_allowed
= false;
1682 sta_info
->is_ampdu_allowed
= true;
1687 ieee80211_tx_info_clear_status(info
);
1689 /* Rate control is happening in the firmware.
1690 * Ensure no tx rate is being reported.
1692 info
->status
.rates
[0].idx
= -1;
1693 info
->status
.rates
[0].count
= 1;
1695 if (MWL8K_TXD_SUCCESS(status
))
1696 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1698 ieee80211_tx_status_irqsafe(hw
, skb
);
1706 /* must be called only when the card's transmit is completely halted */
1707 static void mwl8k_txq_deinit(struct ieee80211_hw
*hw
, int index
)
1709 struct mwl8k_priv
*priv
= hw
->priv
;
1710 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1712 if (txq
->txd
== NULL
)
1715 mwl8k_txq_reclaim(hw
, index
, INT_MAX
, 1);
1720 pci_free_consistent(priv
->pdev
,
1721 MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
),
1722 txq
->txd
, txq
->txd_dma
);
1726 /* caller must hold priv->stream_lock when calling the stream functions */
1727 static struct mwl8k_ampdu_stream
*
1728 mwl8k_add_stream(struct ieee80211_hw
*hw
, struct ieee80211_sta
*sta
, u8 tid
)
1730 struct mwl8k_ampdu_stream
*stream
;
1731 struct mwl8k_priv
*priv
= hw
->priv
;
1734 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++) {
1735 stream
= &priv
->ampdu
[i
];
1736 if (stream
->state
== AMPDU_NO_STREAM
) {
1738 stream
->state
= AMPDU_STREAM_NEW
;
1741 stream
->txq_idx
= MWL8K_TX_WMM_QUEUES
+ i
;
1742 wiphy_debug(hw
->wiphy
, "Added a new stream for %pM %d",
1751 mwl8k_start_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1755 /* if the stream has already been started, don't start it again */
1756 if (stream
->state
!= AMPDU_STREAM_NEW
)
1758 ret
= ieee80211_start_tx_ba_session(stream
->sta
, stream
->tid
, 0);
1760 wiphy_debug(hw
->wiphy
, "Failed to start stream for %pM %d: "
1761 "%d\n", stream
->sta
->addr
, stream
->tid
, ret
);
1763 wiphy_debug(hw
->wiphy
, "Started stream for %pM %d\n",
1764 stream
->sta
->addr
, stream
->tid
);
1769 mwl8k_remove_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1771 wiphy_debug(hw
->wiphy
, "Remove stream for %pM %d\n", stream
->sta
->addr
,
1773 memset(stream
, 0, sizeof(*stream
));
1776 static struct mwl8k_ampdu_stream
*
1777 mwl8k_lookup_stream(struct ieee80211_hw
*hw
, u8
*addr
, u8 tid
)
1779 struct mwl8k_priv
*priv
= hw
->priv
;
1782 for (i
= 0 ; i
< priv
->num_ampdu_queues
; i
++) {
1783 struct mwl8k_ampdu_stream
*stream
;
1784 stream
= &priv
->ampdu
[i
];
1785 if (stream
->state
== AMPDU_NO_STREAM
)
1787 if (!memcmp(stream
->sta
->addr
, addr
, ETH_ALEN
) &&
1794 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1795 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta
*sta
, u8 tid
)
1797 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1798 struct tx_traffic_info
*tx_stats
;
1800 BUG_ON(tid
>= MWL8K_MAX_TID
);
1801 tx_stats
= &sta_info
->tx_stats
[tid
];
1803 return sta_info
->is_ampdu_allowed
&&
1804 tx_stats
->pkts
> MWL8K_AMPDU_PACKET_THRESHOLD
;
1807 static inline void mwl8k_tx_count_packet(struct ieee80211_sta
*sta
, u8 tid
)
1809 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1810 struct tx_traffic_info
*tx_stats
;
1812 BUG_ON(tid
>= MWL8K_MAX_TID
);
1813 tx_stats
= &sta_info
->tx_stats
[tid
];
1815 if (tx_stats
->start_time
== 0)
1816 tx_stats
->start_time
= jiffies
;
1818 /* reset the packet count after each second elapses. If the number of
1819 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1820 * an ampdu stream to be started.
1822 if (jiffies
- tx_stats
->start_time
> HZ
) {
1824 tx_stats
->start_time
= 0;
1830 mwl8k_txq_xmit(struct ieee80211_hw
*hw
, int index
, struct sk_buff
*skb
)
1832 struct mwl8k_priv
*priv
= hw
->priv
;
1833 struct ieee80211_tx_info
*tx_info
;
1834 struct mwl8k_vif
*mwl8k_vif
;
1835 struct ieee80211_sta
*sta
;
1836 struct ieee80211_hdr
*wh
;
1837 struct mwl8k_tx_queue
*txq
;
1838 struct mwl8k_tx_desc
*tx
;
1845 struct mwl8k_ampdu_stream
*stream
= NULL
;
1846 bool start_ba_session
= false;
1847 bool mgmtframe
= false;
1848 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)skb
->data
;
1850 wh
= (struct ieee80211_hdr
*)skb
->data
;
1851 if (ieee80211_is_data_qos(wh
->frame_control
))
1852 qos
= le16_to_cpu(*((__le16
*)ieee80211_get_qos_ctl(wh
)));
1856 if (ieee80211_is_mgmt(wh
->frame_control
))
1860 mwl8k_encapsulate_tx_frame(priv
, skb
);
1862 mwl8k_add_dma_header(priv
, skb
, 0, 0);
1864 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1866 tx_info
= IEEE80211_SKB_CB(skb
);
1867 sta
= tx_info
->control
.sta
;
1868 mwl8k_vif
= MWL8K_VIF(tx_info
->control
.vif
);
1870 if (tx_info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
1871 wh
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
1872 wh
->seq_ctrl
|= cpu_to_le16(mwl8k_vif
->seqno
);
1873 mwl8k_vif
->seqno
+= 0x10;
1876 /* Setup firmware control bit fields for each frame type. */
1879 if (ieee80211_is_mgmt(wh
->frame_control
) ||
1880 ieee80211_is_ctl(wh
->frame_control
)) {
1882 qos
|= MWL8K_QOS_QLEN_UNSPEC
| MWL8K_QOS_EOSP
;
1883 } else if (ieee80211_is_data(wh
->frame_control
)) {
1885 if (is_multicast_ether_addr(wh
->addr1
))
1886 txstatus
|= MWL8K_TXD_STATUS_MULTICAST_TX
;
1888 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
1889 if (tx_info
->flags
& IEEE80211_TX_CTL_AMPDU
)
1890 qos
|= MWL8K_QOS_ACK_POLICY_BLOCKACK
;
1892 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
1895 /* Queue ADDBA request in the respective data queue. While setting up
1896 * the ampdu stream, mac80211 queues further packets for that
1897 * particular ra/tid pair. However, packets piled up in the hardware
1898 * for that ra/tid pair will still go out. ADDBA request and the
1899 * related data packets going out from different queues asynchronously
1900 * will cause a shift in the receiver window which might result in
1901 * ampdu packets getting dropped at the receiver after the stream has
1904 if (unlikely(ieee80211_is_action(wh
->frame_control
) &&
1905 mgmt
->u
.action
.category
== WLAN_CATEGORY_BACK
&&
1906 mgmt
->u
.action
.u
.addba_req
.action_code
== WLAN_ACTION_ADDBA_REQ
&&
1908 u16 capab
= le16_to_cpu(mgmt
->u
.action
.u
.addba_req
.capab
);
1909 tid
= (capab
& IEEE80211_ADDBA_PARAM_TID_MASK
) >> 2;
1910 index
= mwl8k_tid_queue_mapping(tid
);
1915 if (priv
->ap_fw
&& sta
&& sta
->ht_cap
.ht_supported
1916 && skb
->protocol
!= cpu_to_be16(ETH_P_PAE
)
1917 && ieee80211_is_data_qos(wh
->frame_control
)) {
1919 mwl8k_tx_count_packet(sta
, tid
);
1920 spin_lock(&priv
->stream_lock
);
1921 stream
= mwl8k_lookup_stream(hw
, sta
->addr
, tid
);
1922 if (stream
!= NULL
) {
1923 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
1924 txpriority
= stream
->txq_idx
;
1925 index
= stream
->txq_idx
;
1926 } else if (stream
->state
== AMPDU_STREAM_NEW
) {
1927 /* We get here if the driver sends us packets
1928 * after we've initiated a stream, but before
1929 * our ampdu_action routine has been called
1930 * with IEEE80211_AMPDU_TX_START to get the SSN
1931 * for the ADDBA request. So this packet can
1932 * go out with no risk of sequence number
1933 * mismatch. No special handling is required.
1936 /* Drop packets that would go out after the
1937 * ADDBA request was sent but before the ADDBA
1938 * response is received. If we don't do this,
1939 * the recipient would probably receive it
1940 * after the ADDBA request with SSN 0. This
1941 * will cause the recipient's BA receive window
1942 * to shift, which would cause the subsequent
1943 * packets in the BA stream to be discarded.
1944 * mac80211 queues our packets for us in this
1945 * case, so this is really just a safety check.
1947 wiphy_warn(hw
->wiphy
,
1948 "Cannot send packet while ADDBA "
1949 "dialog is underway.\n");
1950 spin_unlock(&priv
->stream_lock
);
1955 /* Defer calling mwl8k_start_stream so that the current
1956 * skb can go out before the ADDBA request. This
1957 * prevents sequence number mismatch at the recepient
1958 * as described above.
1960 if (mwl8k_ampdu_allowed(sta
, tid
)) {
1961 stream
= mwl8k_add_stream(hw
, sta
, tid
);
1963 start_ba_session
= true;
1966 spin_unlock(&priv
->stream_lock
);
1969 dma
= pci_map_single(priv
->pdev
, skb
->data
,
1970 skb
->len
, PCI_DMA_TODEVICE
);
1972 if (pci_dma_mapping_error(priv
->pdev
, dma
)) {
1973 wiphy_debug(hw
->wiphy
,
1974 "failed to dma map skb, dropping TX frame.\n");
1975 if (start_ba_session
) {
1976 spin_lock(&priv
->stream_lock
);
1977 mwl8k_remove_stream(hw
, stream
);
1978 spin_unlock(&priv
->stream_lock
);
1984 spin_lock_bh(&priv
->tx_lock
);
1986 txq
= priv
->txq
+ index
;
1988 /* Mgmt frames that go out frequently are probe
1989 * responses. Other mgmt frames got out relatively
1990 * infrequently. Hence reserve 2 buffers so that
1991 * other mgmt frames do not get dropped due to an
1992 * already queued probe response in one of the
1996 if (txq
->len
>= MWL8K_TX_DESCS
- 2) {
1997 if (!mgmtframe
|| txq
->len
== MWL8K_TX_DESCS
) {
1998 if (start_ba_session
) {
1999 spin_lock(&priv
->stream_lock
);
2000 mwl8k_remove_stream(hw
, stream
);
2001 spin_unlock(&priv
->stream_lock
);
2003 spin_unlock_bh(&priv
->tx_lock
);
2009 BUG_ON(txq
->skb
[txq
->tail
] != NULL
);
2010 txq
->skb
[txq
->tail
] = skb
;
2012 tx
= txq
->txd
+ txq
->tail
;
2013 tx
->data_rate
= txdatarate
;
2014 tx
->tx_priority
= txpriority
;
2015 tx
->qos_control
= cpu_to_le16(qos
);
2016 tx
->pkt_phys_addr
= cpu_to_le32(dma
);
2017 tx
->pkt_len
= cpu_to_le16(skb
->len
);
2019 if (!priv
->ap_fw
&& tx_info
->control
.sta
!= NULL
)
2020 tx
->peer_id
= MWL8K_STA(tx_info
->control
.sta
)->peer_id
;
2025 tx
->timestamp
= cpu_to_le32(ioread32(priv
->regs
+
2026 MWL8K_HW_TIMER_REGISTER
));
2029 tx
->status
= cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
| txstatus
);
2032 priv
->pending_tx_pkts
++;
2035 if (txq
->tail
== MWL8K_TX_DESCS
)
2038 mwl8k_tx_start(priv
);
2040 spin_unlock_bh(&priv
->tx_lock
);
2042 /* Initiate the ampdu session here */
2043 if (start_ba_session
) {
2044 spin_lock(&priv
->stream_lock
);
2045 if (mwl8k_start_stream(hw
, stream
))
2046 mwl8k_remove_stream(hw
, stream
);
2047 spin_unlock(&priv
->stream_lock
);
2055 * We have the following requirements for issuing firmware commands:
2056 * - Some commands require that the packet transmit path is idle when
2057 * the command is issued. (For simplicity, we'll just quiesce the
2058 * transmit path for every command.)
2059 * - There are certain sequences of commands that need to be issued to
2060 * the hardware sequentially, with no other intervening commands.
2062 * This leads to an implementation of a "firmware lock" as a mutex that
2063 * can be taken recursively, and which is taken by both the low-level
2064 * command submission function (mwl8k_post_cmd) as well as any users of
2065 * that function that require issuing of an atomic sequence of commands,
2066 * and quiesces the transmit path whenever it's taken.
2068 static int mwl8k_fw_lock(struct ieee80211_hw
*hw
)
2070 struct mwl8k_priv
*priv
= hw
->priv
;
2072 if (priv
->fw_mutex_owner
!= current
) {
2075 mutex_lock(&priv
->fw_mutex
);
2076 ieee80211_stop_queues(hw
);
2078 rc
= mwl8k_tx_wait_empty(hw
);
2080 if (!priv
->hw_restart_in_progress
)
2081 ieee80211_wake_queues(hw
);
2083 mutex_unlock(&priv
->fw_mutex
);
2088 priv
->fw_mutex_owner
= current
;
2091 priv
->fw_mutex_depth
++;
2096 static void mwl8k_fw_unlock(struct ieee80211_hw
*hw
)
2098 struct mwl8k_priv
*priv
= hw
->priv
;
2100 if (!--priv
->fw_mutex_depth
) {
2101 if (!priv
->hw_restart_in_progress
)
2102 ieee80211_wake_queues(hw
);
2104 priv
->fw_mutex_owner
= NULL
;
2105 mutex_unlock(&priv
->fw_mutex
);
2111 * Command processing.
2114 /* Timeout firmware commands after 10s */
2115 #define MWL8K_CMD_TIMEOUT_MS 10000
2117 static int mwl8k_post_cmd(struct ieee80211_hw
*hw
, struct mwl8k_cmd_pkt
*cmd
)
2119 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
2120 struct mwl8k_priv
*priv
= hw
->priv
;
2121 void __iomem
*regs
= priv
->regs
;
2122 dma_addr_t dma_addr
;
2123 unsigned int dma_size
;
2125 unsigned long timeout
= 0;
2128 cmd
->result
= (__force __le16
) 0xffff;
2129 dma_size
= le16_to_cpu(cmd
->length
);
2130 dma_addr
= pci_map_single(priv
->pdev
, cmd
, dma_size
,
2131 PCI_DMA_BIDIRECTIONAL
);
2132 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
2135 rc
= mwl8k_fw_lock(hw
);
2137 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2138 PCI_DMA_BIDIRECTIONAL
);
2142 priv
->hostcmd_wait
= &cmd_wait
;
2143 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
2144 iowrite32(MWL8K_H2A_INT_DOORBELL
,
2145 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2146 iowrite32(MWL8K_H2A_INT_DUMMY
,
2147 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2149 timeout
= wait_for_completion_timeout(&cmd_wait
,
2150 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS
));
2152 priv
->hostcmd_wait
= NULL
;
2154 mwl8k_fw_unlock(hw
);
2156 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2157 PCI_DMA_BIDIRECTIONAL
);
2160 wiphy_err(hw
->wiphy
, "Command %s timeout after %u ms\n",
2161 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2162 MWL8K_CMD_TIMEOUT_MS
);
2167 ms
= MWL8K_CMD_TIMEOUT_MS
- jiffies_to_msecs(timeout
);
2169 rc
= cmd
->result
? -EINVAL
: 0;
2171 wiphy_err(hw
->wiphy
, "Command %s error 0x%x\n",
2172 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2173 le16_to_cpu(cmd
->result
));
2175 wiphy_notice(hw
->wiphy
, "Command %s took %d ms\n",
2176 mwl8k_cmd_name(cmd
->code
,
2184 static int mwl8k_post_pervif_cmd(struct ieee80211_hw
*hw
,
2185 struct ieee80211_vif
*vif
,
2186 struct mwl8k_cmd_pkt
*cmd
)
2189 cmd
->macid
= MWL8K_VIF(vif
)->macid
;
2190 return mwl8k_post_cmd(hw
, cmd
);
2194 * Setup code shared between STA and AP firmware images.
2196 static void mwl8k_setup_2ghz_band(struct ieee80211_hw
*hw
)
2198 struct mwl8k_priv
*priv
= hw
->priv
;
2200 BUILD_BUG_ON(sizeof(priv
->channels_24
) != sizeof(mwl8k_channels_24
));
2201 memcpy(priv
->channels_24
, mwl8k_channels_24
, sizeof(mwl8k_channels_24
));
2203 BUILD_BUG_ON(sizeof(priv
->rates_24
) != sizeof(mwl8k_rates_24
));
2204 memcpy(priv
->rates_24
, mwl8k_rates_24
, sizeof(mwl8k_rates_24
));
2206 priv
->band_24
.band
= IEEE80211_BAND_2GHZ
;
2207 priv
->band_24
.channels
= priv
->channels_24
;
2208 priv
->band_24
.n_channels
= ARRAY_SIZE(mwl8k_channels_24
);
2209 priv
->band_24
.bitrates
= priv
->rates_24
;
2210 priv
->band_24
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_24
);
2212 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band_24
;
2215 static void mwl8k_setup_5ghz_band(struct ieee80211_hw
*hw
)
2217 struct mwl8k_priv
*priv
= hw
->priv
;
2219 BUILD_BUG_ON(sizeof(priv
->channels_50
) != sizeof(mwl8k_channels_50
));
2220 memcpy(priv
->channels_50
, mwl8k_channels_50
, sizeof(mwl8k_channels_50
));
2222 BUILD_BUG_ON(sizeof(priv
->rates_50
) != sizeof(mwl8k_rates_50
));
2223 memcpy(priv
->rates_50
, mwl8k_rates_50
, sizeof(mwl8k_rates_50
));
2225 priv
->band_50
.band
= IEEE80211_BAND_5GHZ
;
2226 priv
->band_50
.channels
= priv
->channels_50
;
2227 priv
->band_50
.n_channels
= ARRAY_SIZE(mwl8k_channels_50
);
2228 priv
->band_50
.bitrates
= priv
->rates_50
;
2229 priv
->band_50
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_50
);
2231 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->band_50
;
2235 * CMD_GET_HW_SPEC (STA version).
2237 struct mwl8k_cmd_get_hw_spec_sta
{
2238 struct mwl8k_cmd_pkt header
;
2240 __u8 host_interface
;
2242 __u8 perm_addr
[ETH_ALEN
];
2247 __u8 mcs_bitmap
[16];
2248 __le32 rx_queue_ptr
;
2249 __le32 num_tx_queues
;
2250 __le32 tx_queue_ptrs
[MWL8K_TX_WMM_QUEUES
];
2252 __le32 num_tx_desc_per_queue
;
2256 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2257 #define MWL8K_CAP_GREENFIELD 0x08000000
2258 #define MWL8K_CAP_AMPDU 0x04000000
2259 #define MWL8K_CAP_RX_STBC 0x01000000
2260 #define MWL8K_CAP_TX_STBC 0x00800000
2261 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2262 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2263 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2264 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2265 #define MWL8K_CAP_DELAY_BA 0x00003000
2266 #define MWL8K_CAP_MIMO 0x00000200
2267 #define MWL8K_CAP_40MHZ 0x00000100
2268 #define MWL8K_CAP_BAND_MASK 0x00000007
2269 #define MWL8K_CAP_5GHZ 0x00000004
2270 #define MWL8K_CAP_2GHZ4 0x00000001
2273 mwl8k_set_ht_caps(struct ieee80211_hw
*hw
,
2274 struct ieee80211_supported_band
*band
, u32 cap
)
2279 band
->ht_cap
.ht_supported
= 1;
2281 if (cap
& MWL8K_CAP_MAX_AMSDU
)
2282 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
2283 if (cap
& MWL8K_CAP_GREENFIELD
)
2284 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_GRN_FLD
;
2285 if (cap
& MWL8K_CAP_AMPDU
) {
2286 hw
->flags
|= IEEE80211_HW_AMPDU_AGGREGATION
;
2287 band
->ht_cap
.ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
;
2288 band
->ht_cap
.ampdu_density
= IEEE80211_HT_MPDU_DENSITY_NONE
;
2290 if (cap
& MWL8K_CAP_RX_STBC
)
2291 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_RX_STBC
;
2292 if (cap
& MWL8K_CAP_TX_STBC
)
2293 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_TX_STBC
;
2294 if (cap
& MWL8K_CAP_SHORTGI_40MHZ
)
2295 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_40
;
2296 if (cap
& MWL8K_CAP_SHORTGI_20MHZ
)
2297 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_20
;
2298 if (cap
& MWL8K_CAP_DELAY_BA
)
2299 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_DELAY_BA
;
2300 if (cap
& MWL8K_CAP_40MHZ
)
2301 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
2303 rx_streams
= hweight32(cap
& MWL8K_CAP_RX_ANTENNA_MASK
);
2304 tx_streams
= hweight32(cap
& MWL8K_CAP_TX_ANTENNA_MASK
);
2306 band
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2307 if (rx_streams
>= 2)
2308 band
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2309 if (rx_streams
>= 3)
2310 band
->ht_cap
.mcs
.rx_mask
[2] = 0xff;
2311 band
->ht_cap
.mcs
.rx_mask
[4] = 0x01;
2312 band
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2314 if (rx_streams
!= tx_streams
) {
2315 band
->ht_cap
.mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
2316 band
->ht_cap
.mcs
.tx_params
|= (tx_streams
- 1) <<
2317 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2322 mwl8k_set_caps(struct ieee80211_hw
*hw
, u32 caps
)
2324 struct mwl8k_priv
*priv
= hw
->priv
;
2326 if ((caps
& MWL8K_CAP_2GHZ4
) || !(caps
& MWL8K_CAP_BAND_MASK
)) {
2327 mwl8k_setup_2ghz_band(hw
);
2328 if (caps
& MWL8K_CAP_MIMO
)
2329 mwl8k_set_ht_caps(hw
, &priv
->band_24
, caps
);
2332 if (caps
& MWL8K_CAP_5GHZ
) {
2333 mwl8k_setup_5ghz_band(hw
);
2334 if (caps
& MWL8K_CAP_MIMO
)
2335 mwl8k_set_ht_caps(hw
, &priv
->band_50
, caps
);
2339 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw
*hw
)
2341 struct mwl8k_priv
*priv
= hw
->priv
;
2342 struct mwl8k_cmd_get_hw_spec_sta
*cmd
;
2346 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2350 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2351 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2353 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2354 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2355 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2356 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2357 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
2358 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[i
].txd_dma
);
2359 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2360 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2362 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2365 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2366 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2367 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2368 priv
->hw_rev
= cmd
->hw_rev
;
2369 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2370 priv
->ap_macids_supported
= 0x00000000;
2371 priv
->sta_macids_supported
= 0x00000001;
2379 * CMD_GET_HW_SPEC (AP version).
2381 struct mwl8k_cmd_get_hw_spec_ap
{
2382 struct mwl8k_cmd_pkt header
;
2384 __u8 host_interface
;
2387 __u8 perm_addr
[ETH_ALEN
];
2398 __le32 fw_api_version
;
2400 __le32 num_of_ampdu_queues
;
2401 __le32 wcbbase_ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
2404 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw
*hw
)
2406 struct mwl8k_priv
*priv
= hw
->priv
;
2407 struct mwl8k_cmd_get_hw_spec_ap
*cmd
;
2411 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2415 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2416 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2418 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2419 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2421 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2426 api_version
= le32_to_cpu(cmd
->fw_api_version
);
2427 if (priv
->device_info
->fw_api_ap
!= api_version
) {
2428 printk(KERN_ERR
"%s: Unsupported fw API version for %s."
2429 " Expected %d got %d.\n", MWL8K_NAME
,
2430 priv
->device_info
->part_name
,
2431 priv
->device_info
->fw_api_ap
,
2436 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2437 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2438 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2439 priv
->hw_rev
= cmd
->hw_rev
;
2440 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2441 priv
->ap_macids_supported
= 0x000000ff;
2442 priv
->sta_macids_supported
= 0x00000000;
2443 priv
->num_ampdu_queues
= le32_to_cpu(cmd
->num_of_ampdu_queues
);
2444 if (priv
->num_ampdu_queues
> MWL8K_MAX_AMPDU_QUEUES
) {
2445 wiphy_warn(hw
->wiphy
, "fw reported %d ampdu queues"
2446 " but we only support %d.\n",
2447 priv
->num_ampdu_queues
,
2448 MWL8K_MAX_AMPDU_QUEUES
);
2449 priv
->num_ampdu_queues
= MWL8K_MAX_AMPDU_QUEUES
;
2451 off
= le32_to_cpu(cmd
->rxwrptr
) & 0xffff;
2452 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2454 off
= le32_to_cpu(cmd
->rxrdptr
) & 0xffff;
2455 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2457 priv
->txq_offset
[0] = le32_to_cpu(cmd
->wcbbase0
) & 0xffff;
2458 priv
->txq_offset
[1] = le32_to_cpu(cmd
->wcbbase1
) & 0xffff;
2459 priv
->txq_offset
[2] = le32_to_cpu(cmd
->wcbbase2
) & 0xffff;
2460 priv
->txq_offset
[3] = le32_to_cpu(cmd
->wcbbase3
) & 0xffff;
2462 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++)
2463 priv
->txq_offset
[i
+ MWL8K_TX_WMM_QUEUES
] =
2464 le32_to_cpu(cmd
->wcbbase_ampdu
[i
]) & 0xffff;
2475 struct mwl8k_cmd_set_hw_spec
{
2476 struct mwl8k_cmd_pkt header
;
2478 __u8 host_interface
;
2480 __u8 perm_addr
[ETH_ALEN
];
2485 __le32 rx_queue_ptr
;
2486 __le32 num_tx_queues
;
2487 __le32 tx_queue_ptrs
[MWL8K_MAX_TX_QUEUES
];
2489 __le32 num_tx_desc_per_queue
;
2493 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2494 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2495 * the packets that are queued for more than 500ms, will be dropped in the
2496 * hardware. This helps minimizing the issues caused due to head-of-line
2497 * blocking where a slow client can hog the bandwidth and affect traffic to a
2500 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2501 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2502 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2503 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2504 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2506 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw
*hw
)
2508 struct mwl8k_priv
*priv
= hw
->priv
;
2509 struct mwl8k_cmd_set_hw_spec
*cmd
;
2513 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2517 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_HW_SPEC
);
2518 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2520 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2521 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2522 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2525 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2526 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2527 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2528 * priority is interpreted the right way in firmware.
2530 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
2531 int j
= mwl8k_tx_queues(priv
) - 1 - i
;
2532 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[j
].txd_dma
);
2535 cmd
->flags
= cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT
|
2536 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP
|
2537 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON
|
2538 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY
|
2539 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR
);
2540 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2541 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2543 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2550 * CMD_MAC_MULTICAST_ADR.
2552 struct mwl8k_cmd_mac_multicast_adr
{
2553 struct mwl8k_cmd_pkt header
;
2556 __u8 addr
[0][ETH_ALEN
];
2559 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2560 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2561 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2562 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2564 static struct mwl8k_cmd_pkt
*
2565 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw
*hw
, int allmulti
,
2566 struct netdev_hw_addr_list
*mc_list
)
2568 struct mwl8k_priv
*priv
= hw
->priv
;
2569 struct mwl8k_cmd_mac_multicast_adr
*cmd
;
2574 mc_count
= netdev_hw_addr_list_count(mc_list
);
2576 if (allmulti
|| mc_count
> priv
->num_mcaddrs
) {
2581 size
= sizeof(*cmd
) + mc_count
* ETH_ALEN
;
2583 cmd
= kzalloc(size
, GFP_ATOMIC
);
2587 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR
);
2588 cmd
->header
.length
= cpu_to_le16(size
);
2589 cmd
->action
= cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED
|
2590 MWL8K_ENABLE_RX_BROADCAST
);
2593 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST
);
2594 } else if (mc_count
) {
2595 struct netdev_hw_addr
*ha
;
2598 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST
);
2599 cmd
->numaddr
= cpu_to_le16(mc_count
);
2600 netdev_hw_addr_list_for_each(ha
, mc_list
) {
2601 memcpy(cmd
->addr
[i
], ha
->addr
, ETH_ALEN
);
2605 return &cmd
->header
;
2611 struct mwl8k_cmd_get_stat
{
2612 struct mwl8k_cmd_pkt header
;
2616 #define MWL8K_STAT_ACK_FAILURE 9
2617 #define MWL8K_STAT_RTS_FAILURE 12
2618 #define MWL8K_STAT_FCS_ERROR 24
2619 #define MWL8K_STAT_RTS_SUCCESS 11
2621 static int mwl8k_cmd_get_stat(struct ieee80211_hw
*hw
,
2622 struct ieee80211_low_level_stats
*stats
)
2624 struct mwl8k_cmd_get_stat
*cmd
;
2627 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2631 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_STAT
);
2632 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2634 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2636 stats
->dot11ACKFailureCount
=
2637 le32_to_cpu(cmd
->stats
[MWL8K_STAT_ACK_FAILURE
]);
2638 stats
->dot11RTSFailureCount
=
2639 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_FAILURE
]);
2640 stats
->dot11FCSErrorCount
=
2641 le32_to_cpu(cmd
->stats
[MWL8K_STAT_FCS_ERROR
]);
2642 stats
->dot11RTSSuccessCount
=
2643 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_SUCCESS
]);
2651 * CMD_RADIO_CONTROL.
2653 struct mwl8k_cmd_radio_control
{
2654 struct mwl8k_cmd_pkt header
;
2661 mwl8k_cmd_radio_control(struct ieee80211_hw
*hw
, bool enable
, bool force
)
2663 struct mwl8k_priv
*priv
= hw
->priv
;
2664 struct mwl8k_cmd_radio_control
*cmd
;
2667 if (enable
== priv
->radio_on
&& !force
)
2670 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2674 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RADIO_CONTROL
);
2675 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2676 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2677 cmd
->control
= cpu_to_le16(priv
->radio_short_preamble
? 3 : 1);
2678 cmd
->radio_on
= cpu_to_le16(enable
? 0x0001 : 0x0000);
2680 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2684 priv
->radio_on
= enable
;
2689 static int mwl8k_cmd_radio_disable(struct ieee80211_hw
*hw
)
2691 return mwl8k_cmd_radio_control(hw
, 0, 0);
2694 static int mwl8k_cmd_radio_enable(struct ieee80211_hw
*hw
)
2696 return mwl8k_cmd_radio_control(hw
, 1, 0);
2700 mwl8k_set_radio_preamble(struct ieee80211_hw
*hw
, bool short_preamble
)
2702 struct mwl8k_priv
*priv
= hw
->priv
;
2704 priv
->radio_short_preamble
= short_preamble
;
2706 return mwl8k_cmd_radio_control(hw
, 1, 1);
2712 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2714 struct mwl8k_cmd_rf_tx_power
{
2715 struct mwl8k_cmd_pkt header
;
2717 __le16 support_level
;
2718 __le16 current_level
;
2720 __le16 power_level_list
[MWL8K_RF_TX_POWER_LEVEL_TOTAL
];
2723 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw
*hw
, int dBm
)
2725 struct mwl8k_cmd_rf_tx_power
*cmd
;
2728 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2732 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_TX_POWER
);
2733 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2734 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2735 cmd
->support_level
= cpu_to_le16(dBm
);
2737 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2746 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2748 struct mwl8k_cmd_tx_power
{
2749 struct mwl8k_cmd_pkt header
;
2755 __le16 power_level_list
[MWL8K_TX_POWER_LEVEL_TOTAL
];
2758 static int mwl8k_cmd_tx_power(struct ieee80211_hw
*hw
,
2759 struct ieee80211_conf
*conf
,
2762 struct ieee80211_channel
*channel
= conf
->channel
;
2763 struct mwl8k_cmd_tx_power
*cmd
;
2767 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2771 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_TX_POWER
);
2772 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2773 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET_LIST
);
2775 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2776 cmd
->band
= cpu_to_le16(0x1);
2777 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2778 cmd
->band
= cpu_to_le16(0x4);
2780 cmd
->channel
= cpu_to_le16(channel
->hw_value
);
2782 if (conf
->channel_type
== NL80211_CHAN_NO_HT
||
2783 conf
->channel_type
== NL80211_CHAN_HT20
) {
2784 cmd
->bw
= cpu_to_le16(0x2);
2786 cmd
->bw
= cpu_to_le16(0x4);
2787 if (conf
->channel_type
== NL80211_CHAN_HT40MINUS
)
2788 cmd
->sub_ch
= cpu_to_le16(0x3);
2789 else if (conf
->channel_type
== NL80211_CHAN_HT40PLUS
)
2790 cmd
->sub_ch
= cpu_to_le16(0x1);
2793 for (i
= 0; i
< MWL8K_TX_POWER_LEVEL_TOTAL
; i
++)
2794 cmd
->power_level_list
[i
] = cpu_to_le16(pwr
);
2796 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2805 struct mwl8k_cmd_rf_antenna
{
2806 struct mwl8k_cmd_pkt header
;
2811 #define MWL8K_RF_ANTENNA_RX 1
2812 #define MWL8K_RF_ANTENNA_TX 2
2815 mwl8k_cmd_rf_antenna(struct ieee80211_hw
*hw
, int antenna
, int mask
)
2817 struct mwl8k_cmd_rf_antenna
*cmd
;
2820 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2824 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_ANTENNA
);
2825 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2826 cmd
->antenna
= cpu_to_le16(antenna
);
2827 cmd
->mode
= cpu_to_le16(mask
);
2829 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2838 struct mwl8k_cmd_set_beacon
{
2839 struct mwl8k_cmd_pkt header
;
2844 static int mwl8k_cmd_set_beacon(struct ieee80211_hw
*hw
,
2845 struct ieee80211_vif
*vif
, u8
*beacon
, int len
)
2847 struct mwl8k_cmd_set_beacon
*cmd
;
2850 cmd
= kzalloc(sizeof(*cmd
) + len
, GFP_KERNEL
);
2854 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_BEACON
);
2855 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
) + len
);
2856 cmd
->beacon_len
= cpu_to_le16(len
);
2857 memcpy(cmd
->beacon
, beacon
, len
);
2859 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
2868 struct mwl8k_cmd_set_pre_scan
{
2869 struct mwl8k_cmd_pkt header
;
2872 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw
*hw
)
2874 struct mwl8k_cmd_set_pre_scan
*cmd
;
2877 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2881 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN
);
2882 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2884 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2891 * CMD_SET_POST_SCAN.
2893 struct mwl8k_cmd_set_post_scan
{
2894 struct mwl8k_cmd_pkt header
;
2896 __u8 bssid
[ETH_ALEN
];
2900 mwl8k_cmd_set_post_scan(struct ieee80211_hw
*hw
, const __u8
*mac
)
2902 struct mwl8k_cmd_set_post_scan
*cmd
;
2905 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2909 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_POST_SCAN
);
2910 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2912 memcpy(cmd
->bssid
, mac
, ETH_ALEN
);
2914 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2921 * CMD_SET_RF_CHANNEL.
2923 struct mwl8k_cmd_set_rf_channel
{
2924 struct mwl8k_cmd_pkt header
;
2926 __u8 current_channel
;
2927 __le32 channel_flags
;
2930 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw
*hw
,
2931 struct ieee80211_conf
*conf
)
2933 struct ieee80211_channel
*channel
= conf
->channel
;
2934 struct mwl8k_cmd_set_rf_channel
*cmd
;
2937 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2941 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL
);
2942 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2943 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2944 cmd
->current_channel
= channel
->hw_value
;
2946 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2947 cmd
->channel_flags
|= cpu_to_le32(0x00000001);
2948 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2949 cmd
->channel_flags
|= cpu_to_le32(0x00000004);
2951 if (conf
->channel_type
== NL80211_CHAN_NO_HT
||
2952 conf
->channel_type
== NL80211_CHAN_HT20
)
2953 cmd
->channel_flags
|= cpu_to_le32(0x00000080);
2954 else if (conf
->channel_type
== NL80211_CHAN_HT40MINUS
)
2955 cmd
->channel_flags
|= cpu_to_le32(0x000001900);
2956 else if (conf
->channel_type
== NL80211_CHAN_HT40PLUS
)
2957 cmd
->channel_flags
|= cpu_to_le32(0x000000900);
2959 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2968 #define MWL8K_FRAME_PROT_DISABLED 0x00
2969 #define MWL8K_FRAME_PROT_11G 0x07
2970 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2971 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2973 struct mwl8k_cmd_update_set_aid
{
2974 struct mwl8k_cmd_pkt header
;
2977 /* AP's MAC address (BSSID) */
2978 __u8 bssid
[ETH_ALEN
];
2979 __le16 protection_mode
;
2980 __u8 supp_rates
[14];
2983 static void legacy_rate_mask_to_array(u8
*rates
, u32 mask
)
2989 * Clear nonstandard rates 4 and 13.
2993 for (i
= 0, j
= 0; i
< 14; i
++) {
2994 if (mask
& (1 << i
))
2995 rates
[j
++] = mwl8k_rates_24
[i
].hw_value
;
3000 mwl8k_cmd_set_aid(struct ieee80211_hw
*hw
,
3001 struct ieee80211_vif
*vif
, u32 legacy_rate_mask
)
3003 struct mwl8k_cmd_update_set_aid
*cmd
;
3007 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3011 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_AID
);
3012 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3013 cmd
->aid
= cpu_to_le16(vif
->bss_conf
.aid
);
3014 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
3016 if (vif
->bss_conf
.use_cts_prot
) {
3017 prot_mode
= MWL8K_FRAME_PROT_11G
;
3019 switch (vif
->bss_conf
.ht_operation_mode
&
3020 IEEE80211_HT_OP_MODE_PROTECTION
) {
3021 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
3022 prot_mode
= MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY
;
3024 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
3025 prot_mode
= MWL8K_FRAME_PROT_11N_HT_ALL
;
3028 prot_mode
= MWL8K_FRAME_PROT_DISABLED
;
3032 cmd
->protection_mode
= cpu_to_le16(prot_mode
);
3034 legacy_rate_mask_to_array(cmd
->supp_rates
, legacy_rate_mask
);
3036 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3045 struct mwl8k_cmd_set_rate
{
3046 struct mwl8k_cmd_pkt header
;
3047 __u8 legacy_rates
[14];
3049 /* Bitmap for supported MCS codes. */
3055 mwl8k_cmd_set_rate(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
3056 u32 legacy_rate_mask
, u8
*mcs_rates
)
3058 struct mwl8k_cmd_set_rate
*cmd
;
3061 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3065 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATE
);
3066 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3067 legacy_rate_mask_to_array(cmd
->legacy_rates
, legacy_rate_mask
);
3068 memcpy(cmd
->mcs_set
, mcs_rates
, 16);
3070 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3077 * CMD_FINALIZE_JOIN.
3079 #define MWL8K_FJ_BEACON_MAXLEN 128
3081 struct mwl8k_cmd_finalize_join
{
3082 struct mwl8k_cmd_pkt header
;
3083 __le32 sleep_interval
; /* Number of beacon periods to sleep */
3084 __u8 beacon_data
[MWL8K_FJ_BEACON_MAXLEN
];
3087 static int mwl8k_cmd_finalize_join(struct ieee80211_hw
*hw
, void *frame
,
3088 int framelen
, int dtim
)
3090 struct mwl8k_cmd_finalize_join
*cmd
;
3091 struct ieee80211_mgmt
*payload
= frame
;
3095 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3099 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN
);
3100 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3101 cmd
->sleep_interval
= cpu_to_le32(dtim
? dtim
: 1);
3103 payload_len
= framelen
- ieee80211_hdrlen(payload
->frame_control
);
3104 if (payload_len
< 0)
3106 else if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
3107 payload_len
= MWL8K_FJ_BEACON_MAXLEN
;
3109 memcpy(cmd
->beacon_data
, &payload
->u
.beacon
, payload_len
);
3111 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3118 * CMD_SET_RTS_THRESHOLD.
3120 struct mwl8k_cmd_set_rts_threshold
{
3121 struct mwl8k_cmd_pkt header
;
3127 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw
*hw
, int rts_thresh
)
3129 struct mwl8k_cmd_set_rts_threshold
*cmd
;
3132 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3136 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD
);
3137 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3138 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3139 cmd
->threshold
= cpu_to_le16(rts_thresh
);
3141 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3150 struct mwl8k_cmd_set_slot
{
3151 struct mwl8k_cmd_pkt header
;
3156 static int mwl8k_cmd_set_slot(struct ieee80211_hw
*hw
, bool short_slot_time
)
3158 struct mwl8k_cmd_set_slot
*cmd
;
3161 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3165 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_SLOT
);
3166 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3167 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3168 cmd
->short_slot
= short_slot_time
;
3170 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3177 * CMD_SET_EDCA_PARAMS.
3179 struct mwl8k_cmd_set_edca_params
{
3180 struct mwl8k_cmd_pkt header
;
3182 /* See MWL8K_SET_EDCA_XXX below */
3185 /* TX opportunity in units of 32 us */
3190 /* Log exponent of max contention period: 0...15 */
3193 /* Log exponent of min contention period: 0...15 */
3196 /* Adaptive interframe spacing in units of 32us */
3199 /* TX queue to configure */
3203 /* Log exponent of max contention period: 0...15 */
3206 /* Log exponent of min contention period: 0...15 */
3209 /* Adaptive interframe spacing in units of 32us */
3212 /* TX queue to configure */
3218 #define MWL8K_SET_EDCA_CW 0x01
3219 #define MWL8K_SET_EDCA_TXOP 0x02
3220 #define MWL8K_SET_EDCA_AIFS 0x04
3222 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3223 MWL8K_SET_EDCA_TXOP | \
3224 MWL8K_SET_EDCA_AIFS)
3227 mwl8k_cmd_set_edca_params(struct ieee80211_hw
*hw
, __u8 qnum
,
3228 __u16 cw_min
, __u16 cw_max
,
3229 __u8 aifs
, __u16 txop
)
3231 struct mwl8k_priv
*priv
= hw
->priv
;
3232 struct mwl8k_cmd_set_edca_params
*cmd
;
3235 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3239 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS
);
3240 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3241 cmd
->action
= cpu_to_le16(MWL8K_SET_EDCA_ALL
);
3242 cmd
->txop
= cpu_to_le16(txop
);
3244 cmd
->ap
.log_cw_max
= cpu_to_le32(ilog2(cw_max
+ 1));
3245 cmd
->ap
.log_cw_min
= cpu_to_le32(ilog2(cw_min
+ 1));
3246 cmd
->ap
.aifs
= aifs
;
3249 cmd
->sta
.log_cw_max
= (u8
)ilog2(cw_max
+ 1);
3250 cmd
->sta
.log_cw_min
= (u8
)ilog2(cw_min
+ 1);
3251 cmd
->sta
.aifs
= aifs
;
3252 cmd
->sta
.txq
= qnum
;
3255 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3264 struct mwl8k_cmd_set_wmm_mode
{
3265 struct mwl8k_cmd_pkt header
;
3269 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw
*hw
, bool enable
)
3271 struct mwl8k_priv
*priv
= hw
->priv
;
3272 struct mwl8k_cmd_set_wmm_mode
*cmd
;
3275 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3279 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_WMM_MODE
);
3280 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3281 cmd
->action
= cpu_to_le16(!!enable
);
3283 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3287 priv
->wmm_enabled
= enable
;
3295 struct mwl8k_cmd_mimo_config
{
3296 struct mwl8k_cmd_pkt header
;
3298 __u8 rx_antenna_map
;
3299 __u8 tx_antenna_map
;
3302 static int mwl8k_cmd_mimo_config(struct ieee80211_hw
*hw
, __u8 rx
, __u8 tx
)
3304 struct mwl8k_cmd_mimo_config
*cmd
;
3307 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3311 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MIMO_CONFIG
);
3312 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3313 cmd
->action
= cpu_to_le32((u32
)MWL8K_CMD_SET
);
3314 cmd
->rx_antenna_map
= rx
;
3315 cmd
->tx_antenna_map
= tx
;
3317 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3324 * CMD_USE_FIXED_RATE (STA version).
3326 struct mwl8k_cmd_use_fixed_rate_sta
{
3327 struct mwl8k_cmd_pkt header
;
3329 __le32 allow_rate_drop
;
3333 __le32 enable_retry
;
3342 #define MWL8K_USE_AUTO_RATE 0x0002
3343 #define MWL8K_UCAST_RATE 0
3345 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw
*hw
)
3347 struct mwl8k_cmd_use_fixed_rate_sta
*cmd
;
3350 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3354 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3355 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3356 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3357 cmd
->rate_type
= cpu_to_le32(MWL8K_UCAST_RATE
);
3359 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3366 * CMD_USE_FIXED_RATE (AP version).
3368 struct mwl8k_cmd_use_fixed_rate_ap
{
3369 struct mwl8k_cmd_pkt header
;
3371 __le32 allow_rate_drop
;
3373 struct mwl8k_rate_entry_ap
{
3375 __le32 enable_retry
;
3380 u8 multicast_rate_type
;
3385 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw
*hw
, int mcast
, int mgmt
)
3387 struct mwl8k_cmd_use_fixed_rate_ap
*cmd
;
3390 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3394 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3395 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3396 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3397 cmd
->multicast_rate
= mcast
;
3398 cmd
->management_rate
= mgmt
;
3400 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3407 * CMD_ENABLE_SNIFFER.
3409 struct mwl8k_cmd_enable_sniffer
{
3410 struct mwl8k_cmd_pkt header
;
3414 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw
*hw
, bool enable
)
3416 struct mwl8k_cmd_enable_sniffer
*cmd
;
3419 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3423 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER
);
3424 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3425 cmd
->action
= cpu_to_le32(!!enable
);
3427 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3433 struct mwl8k_cmd_update_mac_addr
{
3434 struct mwl8k_cmd_pkt header
;
3438 __u8 mac_addr
[ETH_ALEN
];
3440 __u8 mac_addr
[ETH_ALEN
];
3444 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3445 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3446 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3447 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3449 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw
*hw
,
3450 struct ieee80211_vif
*vif
, u8
*mac
, bool set
)
3452 struct mwl8k_priv
*priv
= hw
->priv
;
3453 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3454 struct mwl8k_cmd_update_mac_addr
*cmd
;
3458 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3459 if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3460 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->sta_macids_supported
))
3461 mac_type
= MWL8K_MAC_TYPE_PRIMARY_CLIENT
;
3463 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3464 } else if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_AP
) {
3465 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->ap_macids_supported
))
3466 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3468 mac_type
= MWL8K_MAC_TYPE_SECONDARY_AP
;
3471 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3476 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR
);
3478 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR
);
3480 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3482 cmd
->mbss
.mac_type
= cpu_to_le16(mac_type
);
3483 memcpy(cmd
->mbss
.mac_addr
, mac
, ETH_ALEN
);
3485 memcpy(cmd
->mac_addr
, mac
, ETH_ALEN
);
3488 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3495 * MWL8K_CMD_SET_MAC_ADDR.
3497 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw
*hw
,
3498 struct ieee80211_vif
*vif
, u8
*mac
)
3500 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, true);
3504 * MWL8K_CMD_DEL_MAC_ADDR.
3506 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw
*hw
,
3507 struct ieee80211_vif
*vif
, u8
*mac
)
3509 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, false);
3513 * CMD_SET_RATEADAPT_MODE.
3515 struct mwl8k_cmd_set_rate_adapt_mode
{
3516 struct mwl8k_cmd_pkt header
;
3521 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw
*hw
, __u16 mode
)
3523 struct mwl8k_cmd_set_rate_adapt_mode
*cmd
;
3526 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3530 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE
);
3531 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3532 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3533 cmd
->mode
= cpu_to_le16(mode
);
3535 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3542 * CMD_GET_WATCHDOG_BITMAP.
3544 struct mwl8k_cmd_get_watchdog_bitmap
{
3545 struct mwl8k_cmd_pkt header
;
3549 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw
*hw
, u8
*bitmap
)
3551 struct mwl8k_cmd_get_watchdog_bitmap
*cmd
;
3554 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3558 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP
);
3559 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3561 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3563 *bitmap
= cmd
->bitmap
;
3570 #define INVALID_BA 0xAA
3571 static void mwl8k_watchdog_ba_events(struct work_struct
*work
)
3574 u8 bitmap
= 0, stream_index
;
3575 struct mwl8k_ampdu_stream
*streams
;
3576 struct mwl8k_priv
*priv
=
3577 container_of(work
, struct mwl8k_priv
, watchdog_ba_handle
);
3579 rc
= mwl8k_cmd_get_watchdog_bitmap(priv
->hw
, &bitmap
);
3583 if (bitmap
== INVALID_BA
)
3586 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3587 stream_index
= bitmap
- MWL8K_TX_WMM_QUEUES
;
3589 BUG_ON(stream_index
>= priv
->num_ampdu_queues
);
3591 streams
= &priv
->ampdu
[stream_index
];
3593 if (streams
->state
== AMPDU_STREAM_ACTIVE
)
3594 ieee80211_stop_tx_ba_session(streams
->sta
, streams
->tid
);
3603 struct mwl8k_cmd_bss_start
{
3604 struct mwl8k_cmd_pkt header
;
3608 static int mwl8k_cmd_bss_start(struct ieee80211_hw
*hw
,
3609 struct ieee80211_vif
*vif
, int enable
)
3611 struct mwl8k_cmd_bss_start
*cmd
;
3614 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3618 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BSS_START
);
3619 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3620 cmd
->enable
= cpu_to_le32(enable
);
3622 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3633 * UPSTREAM is tx direction
3635 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3636 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3638 enum ba_stream_action_type
{
3647 struct mwl8k_create_ba_stream
{
3652 u8 peer_mac_addr
[6];
3658 u8 reset_seq_no_flag
;
3660 u8 sta_src_mac_addr
[6];
3663 struct mwl8k_destroy_ba_stream
{
3668 struct mwl8k_cmd_bastream
{
3669 struct mwl8k_cmd_pkt header
;
3672 struct mwl8k_create_ba_stream create_params
;
3673 struct mwl8k_destroy_ba_stream destroy_params
;
3678 mwl8k_check_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
3680 struct mwl8k_cmd_bastream
*cmd
;
3683 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3687 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3688 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3690 cmd
->action
= cpu_to_le32(MWL8K_BA_CHECK
);
3692 cmd
->create_params
.queue_id
= stream
->idx
;
3693 memcpy(&cmd
->create_params
.peer_mac_addr
[0], stream
->sta
->addr
,
3695 cmd
->create_params
.tid
= stream
->tid
;
3697 cmd
->create_params
.flags
=
3698 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
) |
3699 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3701 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3709 mwl8k_create_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3712 struct mwl8k_cmd_bastream
*cmd
;
3715 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3720 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3721 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3723 cmd
->action
= cpu_to_le32(MWL8K_BA_CREATE
);
3725 cmd
->create_params
.bar_thrs
= cpu_to_le32((u32
)buf_size
);
3726 cmd
->create_params
.window_size
= cpu_to_le32((u32
)buf_size
);
3727 cmd
->create_params
.queue_id
= stream
->idx
;
3729 memcpy(cmd
->create_params
.peer_mac_addr
, stream
->sta
->addr
, ETH_ALEN
);
3730 cmd
->create_params
.tid
= stream
->tid
;
3731 cmd
->create_params
.curr_seq_no
= cpu_to_le16(0);
3732 cmd
->create_params
.reset_seq_no_flag
= 1;
3734 cmd
->create_params
.param_info
=
3735 (stream
->sta
->ht_cap
.ampdu_factor
&
3736 IEEE80211_HT_AMPDU_PARM_FACTOR
) |
3737 ((stream
->sta
->ht_cap
.ampdu_density
<< 2) &
3738 IEEE80211_HT_AMPDU_PARM_DENSITY
);
3740 cmd
->create_params
.flags
=
3741 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
|
3742 BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3744 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3746 wiphy_debug(hw
->wiphy
, "Created a BA stream for %pM : tid %d\n",
3747 stream
->sta
->addr
, stream
->tid
);
3753 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
3754 struct mwl8k_ampdu_stream
*stream
)
3756 struct mwl8k_cmd_bastream
*cmd
;
3758 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3762 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3763 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3764 cmd
->action
= cpu_to_le32(MWL8K_BA_DESTROY
);
3766 cmd
->destroy_params
.ba_context
= cpu_to_le32(stream
->idx
);
3767 mwl8k_post_cmd(hw
, &cmd
->header
);
3769 wiphy_debug(hw
->wiphy
, "Deleted BA stream index %d\n", stream
->idx
);
3777 struct mwl8k_cmd_set_new_stn
{
3778 struct mwl8k_cmd_pkt header
;
3784 __le32 legacy_rates
;
3787 __le16 ht_capabilities_info
;
3788 __u8 mac_ht_param_info
;
3790 __u8 control_channel
;
3799 #define MWL8K_STA_ACTION_ADD 0
3800 #define MWL8K_STA_ACTION_REMOVE 2
3802 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw
*hw
,
3803 struct ieee80211_vif
*vif
,
3804 struct ieee80211_sta
*sta
)
3806 struct mwl8k_cmd_set_new_stn
*cmd
;
3810 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3814 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3815 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3816 cmd
->aid
= cpu_to_le16(sta
->aid
);
3817 memcpy(cmd
->mac_addr
, sta
->addr
, ETH_ALEN
);
3818 cmd
->stn_id
= cpu_to_le16(sta
->aid
);
3819 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_ADD
);
3820 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
3821 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
3823 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
3824 cmd
->legacy_rates
= cpu_to_le32(rates
);
3825 if (sta
->ht_cap
.ht_supported
) {
3826 cmd
->ht_rates
[0] = sta
->ht_cap
.mcs
.rx_mask
[0];
3827 cmd
->ht_rates
[1] = sta
->ht_cap
.mcs
.rx_mask
[1];
3828 cmd
->ht_rates
[2] = sta
->ht_cap
.mcs
.rx_mask
[2];
3829 cmd
->ht_rates
[3] = sta
->ht_cap
.mcs
.rx_mask
[3];
3830 cmd
->ht_capabilities_info
= cpu_to_le16(sta
->ht_cap
.cap
);
3831 cmd
->mac_ht_param_info
= (sta
->ht_cap
.ampdu_factor
& 3) |
3832 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
3833 cmd
->is_qos_sta
= 1;
3836 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3842 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw
*hw
,
3843 struct ieee80211_vif
*vif
)
3845 struct mwl8k_cmd_set_new_stn
*cmd
;
3848 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3852 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3853 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3854 memcpy(cmd
->mac_addr
, vif
->addr
, ETH_ALEN
);
3856 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3862 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw
*hw
,
3863 struct ieee80211_vif
*vif
, u8
*addr
)
3865 struct mwl8k_cmd_set_new_stn
*cmd
;
3868 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3872 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3873 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3874 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3875 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_REMOVE
);
3877 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3884 * CMD_UPDATE_ENCRYPTION.
3887 #define MAX_ENCR_KEY_LENGTH 16
3888 #define MIC_KEY_LENGTH 8
3890 struct mwl8k_cmd_update_encryption
{
3891 struct mwl8k_cmd_pkt header
;
3900 struct mwl8k_cmd_set_key
{
3901 struct mwl8k_cmd_pkt header
;
3910 __u8 key_material
[MAX_ENCR_KEY_LENGTH
];
3911 __u8 tkip_tx_mic_key
[MIC_KEY_LENGTH
];
3912 __u8 tkip_rx_mic_key
[MIC_KEY_LENGTH
];
3913 __le16 tkip_rsc_low
;
3914 __le32 tkip_rsc_high
;
3915 __le16 tkip_tsc_low
;
3916 __le32 tkip_tsc_high
;
3923 MWL8K_ENCR_REMOVE_KEY
,
3924 MWL8K_ENCR_SET_GROUP_KEY
,
3927 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
3928 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
3929 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
3930 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
3931 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
3939 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
3940 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
3941 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
3942 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
3943 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
3945 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw
*hw
,
3946 struct ieee80211_vif
*vif
,
3950 struct mwl8k_cmd_update_encryption
*cmd
;
3953 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3957 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
3958 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3959 cmd
->action
= cpu_to_le32(MWL8K_ENCR_ENABLE
);
3960 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3961 cmd
->encr_type
= encr_type
;
3963 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3969 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key
*cmd
,
3971 struct ieee80211_key_conf
*key
)
3973 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
3974 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3975 cmd
->length
= cpu_to_le16(sizeof(*cmd
) -
3976 offsetof(struct mwl8k_cmd_set_key
, length
));
3977 cmd
->key_id
= cpu_to_le32(key
->keyidx
);
3978 cmd
->key_len
= cpu_to_le16(key
->keylen
);
3979 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3981 switch (key
->cipher
) {
3982 case WLAN_CIPHER_SUITE_WEP40
:
3983 case WLAN_CIPHER_SUITE_WEP104
:
3984 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_WEP
);
3985 if (key
->keyidx
== 0)
3986 cmd
->key_info
= cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY
);
3989 case WLAN_CIPHER_SUITE_TKIP
:
3990 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_TKIP
);
3991 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
3992 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
3993 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
3994 cmd
->key_info
|= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
3995 | MWL8K_KEY_FLAG_TSC_VALID
);
3997 case WLAN_CIPHER_SUITE_CCMP
:
3998 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_CCMP
);
3999 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4000 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4001 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4010 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw
*hw
,
4011 struct ieee80211_vif
*vif
,
4013 struct ieee80211_key_conf
*key
)
4015 struct mwl8k_cmd_set_key
*cmd
;
4020 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4022 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4026 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4032 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4033 action
= MWL8K_ENCR_SET_KEY
;
4035 action
= MWL8K_ENCR_SET_GROUP_KEY
;
4037 switch (key
->cipher
) {
4038 case WLAN_CIPHER_SUITE_WEP40
:
4039 case WLAN_CIPHER_SUITE_WEP104
:
4040 if (!mwl8k_vif
->wep_key_conf
[idx
].enabled
) {
4041 memcpy(mwl8k_vif
->wep_key_conf
[idx
].key
, key
,
4042 sizeof(*key
) + key
->keylen
);
4043 mwl8k_vif
->wep_key_conf
[idx
].enabled
= 1;
4046 keymlen
= key
->keylen
;
4047 action
= MWL8K_ENCR_SET_KEY
;
4049 case WLAN_CIPHER_SUITE_TKIP
:
4050 keymlen
= MAX_ENCR_KEY_LENGTH
+ 2 * MIC_KEY_LENGTH
;
4052 case WLAN_CIPHER_SUITE_CCMP
:
4053 keymlen
= key
->keylen
;
4060 memcpy(cmd
->key_material
, key
->key
, keymlen
);
4061 cmd
->action
= cpu_to_le32(action
);
4063 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4070 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw
*hw
,
4071 struct ieee80211_vif
*vif
,
4073 struct ieee80211_key_conf
*key
)
4075 struct mwl8k_cmd_set_key
*cmd
;
4077 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4079 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4083 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4087 if (key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
4088 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
)
4089 mwl8k_vif
->wep_key_conf
[key
->keyidx
].enabled
= 0;
4091 cmd
->action
= cpu_to_le32(MWL8K_ENCR_REMOVE_KEY
);
4093 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4100 static int mwl8k_set_key(struct ieee80211_hw
*hw
,
4101 enum set_key_cmd cmd_param
,
4102 struct ieee80211_vif
*vif
,
4103 struct ieee80211_sta
*sta
,
4104 struct ieee80211_key_conf
*key
)
4109 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4111 if (vif
->type
== NL80211_IFTYPE_STATION
)
4119 if (cmd_param
== SET_KEY
) {
4120 rc
= mwl8k_cmd_encryption_set_key(hw
, vif
, addr
, key
);
4124 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
)
4125 || (key
->cipher
== WLAN_CIPHER_SUITE_WEP104
))
4126 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_WEP
;
4128 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED
;
4130 rc
= mwl8k_cmd_update_encryption_enable(hw
, vif
, addr
,
4135 mwl8k_vif
->is_hw_crypto_enabled
= true;
4138 rc
= mwl8k_cmd_encryption_remove_key(hw
, vif
, addr
, key
);
4150 struct ewc_ht_info
{
4156 struct peer_capability_info
{
4157 /* Peer type - AP vs. STA. */
4160 /* Basic 802.11 capabilities from assoc resp. */
4163 /* Set if peer supports 802.11n high throughput (HT). */
4166 /* Valid if HT is supported. */
4168 __u8 extended_ht_caps
;
4169 struct ewc_ht_info ewc_info
;
4171 /* Legacy rate table. Intersection of our rates and peer rates. */
4172 __u8 legacy_rates
[12];
4174 /* HT rate table. Intersection of our rates and peer rates. */
4178 /* If set, interoperability mode, no proprietary extensions. */
4182 __le16 amsdu_enabled
;
4185 struct mwl8k_cmd_update_stadb
{
4186 struct mwl8k_cmd_pkt header
;
4188 /* See STADB_ACTION_TYPE */
4191 /* Peer MAC address */
4192 __u8 peer_addr
[ETH_ALEN
];
4196 /* Peer info - valid during add/update. */
4197 struct peer_capability_info peer_info
;
4200 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4201 #define MWL8K_STA_DB_DEL_ENTRY 2
4203 /* Peer Entry flags - used to define the type of the peer node */
4204 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4206 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw
*hw
,
4207 struct ieee80211_vif
*vif
,
4208 struct ieee80211_sta
*sta
)
4210 struct mwl8k_cmd_update_stadb
*cmd
;
4211 struct peer_capability_info
*p
;
4215 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4219 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4220 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4221 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY
);
4222 memcpy(cmd
->peer_addr
, sta
->addr
, ETH_ALEN
);
4224 p
= &cmd
->peer_info
;
4225 p
->peer_type
= MWL8K_PEER_TYPE_ACCESSPOINT
;
4226 p
->basic_caps
= cpu_to_le16(vif
->bss_conf
.assoc_capability
);
4227 p
->ht_support
= sta
->ht_cap
.ht_supported
;
4228 p
->ht_caps
= cpu_to_le16(sta
->ht_cap
.cap
);
4229 p
->extended_ht_caps
= (sta
->ht_cap
.ampdu_factor
& 3) |
4230 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
4231 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
4232 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
4234 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4235 legacy_rate_mask_to_array(p
->legacy_rates
, rates
);
4236 memcpy(p
->ht_rates
, sta
->ht_cap
.mcs
.rx_mask
, 16);
4238 p
->amsdu_enabled
= 0;
4240 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4243 return rc
? rc
: p
->station_id
;
4246 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw
*hw
,
4247 struct ieee80211_vif
*vif
, u8
*addr
)
4249 struct mwl8k_cmd_update_stadb
*cmd
;
4252 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4256 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4257 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4258 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY
);
4259 memcpy(cmd
->peer_addr
, addr
, ETH_ALEN
);
4261 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4269 * Interrupt handling.
4271 static irqreturn_t
mwl8k_interrupt(int irq
, void *dev_id
)
4273 struct ieee80211_hw
*hw
= dev_id
;
4274 struct mwl8k_priv
*priv
= hw
->priv
;
4277 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4281 if (status
& MWL8K_A2H_INT_TX_DONE
) {
4282 status
&= ~MWL8K_A2H_INT_TX_DONE
;
4283 tasklet_schedule(&priv
->poll_tx_task
);
4286 if (status
& MWL8K_A2H_INT_RX_READY
) {
4287 status
&= ~MWL8K_A2H_INT_RX_READY
;
4288 tasklet_schedule(&priv
->poll_rx_task
);
4291 if (status
& MWL8K_A2H_INT_BA_WATCHDOG
) {
4292 status
&= ~MWL8K_A2H_INT_BA_WATCHDOG
;
4293 ieee80211_queue_work(hw
, &priv
->watchdog_ba_handle
);
4297 iowrite32(~status
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4299 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
4300 if (priv
->hostcmd_wait
!= NULL
)
4301 complete(priv
->hostcmd_wait
);
4304 if (status
& MWL8K_A2H_INT_QUEUE_EMPTY
) {
4305 if (!mutex_is_locked(&priv
->fw_mutex
) &&
4306 priv
->radio_on
&& priv
->pending_tx_pkts
)
4307 mwl8k_tx_start(priv
);
4313 static void mwl8k_tx_poll(unsigned long data
)
4315 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4316 struct mwl8k_priv
*priv
= hw
->priv
;
4322 spin_lock_bh(&priv
->tx_lock
);
4324 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4325 limit
-= mwl8k_txq_reclaim(hw
, i
, limit
, 0);
4327 if (!priv
->pending_tx_pkts
&& priv
->tx_wait
!= NULL
) {
4328 complete(priv
->tx_wait
);
4329 priv
->tx_wait
= NULL
;
4332 spin_unlock_bh(&priv
->tx_lock
);
4335 writel(~MWL8K_A2H_INT_TX_DONE
,
4336 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4338 tasklet_schedule(&priv
->poll_tx_task
);
4342 static void mwl8k_rx_poll(unsigned long data
)
4344 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4345 struct mwl8k_priv
*priv
= hw
->priv
;
4349 limit
-= rxq_process(hw
, 0, limit
);
4350 limit
-= rxq_refill(hw
, 0, limit
);
4353 writel(~MWL8K_A2H_INT_RX_READY
,
4354 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4356 tasklet_schedule(&priv
->poll_rx_task
);
4362 * Core driver operations.
4364 static void mwl8k_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
4366 struct mwl8k_priv
*priv
= hw
->priv
;
4367 int index
= skb_get_queue_mapping(skb
);
4369 if (!priv
->radio_on
) {
4370 wiphy_debug(hw
->wiphy
,
4371 "dropped TX frame since radio disabled\n");
4376 mwl8k_txq_xmit(hw
, index
, skb
);
4379 static int mwl8k_start(struct ieee80211_hw
*hw
)
4381 struct mwl8k_priv
*priv
= hw
->priv
;
4384 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
4385 IRQF_SHARED
, MWL8K_NAME
, hw
);
4388 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
4391 priv
->irq
= priv
->pdev
->irq
;
4393 /* Enable TX reclaim and RX tasklets. */
4394 tasklet_enable(&priv
->poll_tx_task
);
4395 tasklet_enable(&priv
->poll_rx_task
);
4397 /* Enable interrupts */
4398 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4399 iowrite32(MWL8K_A2H_EVENTS
,
4400 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4402 rc
= mwl8k_fw_lock(hw
);
4404 rc
= mwl8k_cmd_radio_enable(hw
);
4408 rc
= mwl8k_cmd_enable_sniffer(hw
, 0);
4411 rc
= mwl8k_cmd_set_pre_scan(hw
);
4414 rc
= mwl8k_cmd_set_post_scan(hw
,
4415 "\x00\x00\x00\x00\x00\x00");
4419 rc
= mwl8k_cmd_set_rateadapt_mode(hw
, 0);
4422 rc
= mwl8k_cmd_set_wmm_mode(hw
, 0);
4424 mwl8k_fw_unlock(hw
);
4428 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4429 free_irq(priv
->pdev
->irq
, hw
);
4431 tasklet_disable(&priv
->poll_tx_task
);
4432 tasklet_disable(&priv
->poll_rx_task
);
4438 static void mwl8k_stop(struct ieee80211_hw
*hw
)
4440 struct mwl8k_priv
*priv
= hw
->priv
;
4443 if (!priv
->hw_restart_in_progress
)
4444 mwl8k_cmd_radio_disable(hw
);
4446 ieee80211_stop_queues(hw
);
4448 /* Disable interrupts */
4449 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4450 if (priv
->irq
!= -1) {
4451 free_irq(priv
->pdev
->irq
, hw
);
4455 /* Stop finalize join worker */
4456 cancel_work_sync(&priv
->finalize_join_worker
);
4457 cancel_work_sync(&priv
->watchdog_ba_handle
);
4458 if (priv
->beacon_skb
!= NULL
)
4459 dev_kfree_skb(priv
->beacon_skb
);
4461 /* Stop TX reclaim and RX tasklets. */
4462 tasklet_disable(&priv
->poll_tx_task
);
4463 tasklet_disable(&priv
->poll_rx_task
);
4465 /* Return all skbs to mac80211 */
4466 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4467 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
4470 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
);
4472 static int mwl8k_add_interface(struct ieee80211_hw
*hw
,
4473 struct ieee80211_vif
*vif
)
4475 struct mwl8k_priv
*priv
= hw
->priv
;
4476 struct mwl8k_vif
*mwl8k_vif
;
4477 u32 macids_supported
;
4479 struct mwl8k_device_info
*di
;
4482 * Reject interface creation if sniffer mode is active, as
4483 * STA operation is mutually exclusive with hardware sniffer
4484 * mode. (Sniffer mode is only used on STA firmware.)
4486 if (priv
->sniffer_enabled
) {
4487 wiphy_info(hw
->wiphy
,
4488 "unable to create STA interface because sniffer mode is enabled\n");
4492 di
= priv
->device_info
;
4493 switch (vif
->type
) {
4494 case NL80211_IFTYPE_AP
:
4495 if (!priv
->ap_fw
&& di
->fw_image_ap
) {
4496 /* we must load the ap fw to meet this request */
4497 if (!list_empty(&priv
->vif_list
))
4499 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4503 macids_supported
= priv
->ap_macids_supported
;
4505 case NL80211_IFTYPE_STATION
:
4506 if (priv
->ap_fw
&& di
->fw_image_sta
) {
4507 /* we must load the sta fw to meet this request */
4508 if (!list_empty(&priv
->vif_list
))
4510 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4514 macids_supported
= priv
->sta_macids_supported
;
4520 macid
= ffs(macids_supported
& ~priv
->macids_used
);
4524 /* Setup driver private area. */
4525 mwl8k_vif
= MWL8K_VIF(vif
);
4526 memset(mwl8k_vif
, 0, sizeof(*mwl8k_vif
));
4527 mwl8k_vif
->vif
= vif
;
4528 mwl8k_vif
->macid
= macid
;
4529 mwl8k_vif
->seqno
= 0;
4530 memcpy(mwl8k_vif
->bssid
, vif
->addr
, ETH_ALEN
);
4531 mwl8k_vif
->is_hw_crypto_enabled
= false;
4533 /* Set the mac address. */
4534 mwl8k_cmd_set_mac_addr(hw
, vif
, vif
->addr
);
4537 mwl8k_cmd_set_new_stn_add_self(hw
, vif
);
4539 priv
->macids_used
|= 1 << mwl8k_vif
->macid
;
4540 list_add_tail(&mwl8k_vif
->list
, &priv
->vif_list
);
4545 static void mwl8k_remove_vif(struct mwl8k_priv
*priv
, struct mwl8k_vif
*vif
)
4547 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4548 if (!priv
->macids_used
)
4551 priv
->macids_used
&= ~(1 << vif
->macid
);
4552 list_del(&vif
->list
);
4555 static void mwl8k_remove_interface(struct ieee80211_hw
*hw
,
4556 struct ieee80211_vif
*vif
)
4558 struct mwl8k_priv
*priv
= hw
->priv
;
4559 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4562 mwl8k_cmd_set_new_stn_del(hw
, vif
, vif
->addr
);
4564 mwl8k_cmd_del_mac_addr(hw
, vif
, vif
->addr
);
4566 mwl8k_remove_vif(priv
, mwl8k_vif
);
4569 static void mwl8k_hw_restart_work(struct work_struct
*work
)
4571 struct mwl8k_priv
*priv
=
4572 container_of(work
, struct mwl8k_priv
, fw_reload
);
4573 struct ieee80211_hw
*hw
= priv
->hw
;
4574 struct mwl8k_device_info
*di
;
4577 /* If some command is waiting for a response, clear it */
4578 if (priv
->hostcmd_wait
!= NULL
) {
4579 complete(priv
->hostcmd_wait
);
4580 priv
->hostcmd_wait
= NULL
;
4583 priv
->hw_restart_owner
= current
;
4584 di
= priv
->device_info
;
4588 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4590 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4595 priv
->hw_restart_owner
= NULL
;
4596 priv
->hw_restart_in_progress
= false;
4599 * This unlock will wake up the queues and
4600 * also opens the command path for other
4603 mwl8k_fw_unlock(hw
);
4605 ieee80211_restart_hw(hw
);
4607 wiphy_err(hw
->wiphy
, "Firmware restarted successfully\n");
4611 mwl8k_fw_unlock(hw
);
4613 wiphy_err(hw
->wiphy
, "Firmware restart failed\n");
4616 static int mwl8k_config(struct ieee80211_hw
*hw
, u32 changed
)
4618 struct ieee80211_conf
*conf
= &hw
->conf
;
4619 struct mwl8k_priv
*priv
= hw
->priv
;
4622 if (conf
->flags
& IEEE80211_CONF_IDLE
) {
4623 mwl8k_cmd_radio_disable(hw
);
4627 rc
= mwl8k_fw_lock(hw
);
4631 rc
= mwl8k_cmd_radio_enable(hw
);
4635 rc
= mwl8k_cmd_set_rf_channel(hw
, conf
);
4639 if (conf
->power_level
> 18)
4640 conf
->power_level
= 18;
4644 if (conf
->flags
& IEEE80211_CONF_CHANGE_POWER
) {
4645 rc
= mwl8k_cmd_tx_power(hw
, conf
, conf
->power_level
);
4650 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_RX
, 0x3);
4652 wiphy_warn(hw
->wiphy
, "failed to set # of RX antennas");
4653 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_TX
, 0x7);
4655 wiphy_warn(hw
->wiphy
, "failed to set # of TX antennas");
4658 rc
= mwl8k_cmd_rf_tx_power(hw
, conf
->power_level
);
4661 rc
= mwl8k_cmd_mimo_config(hw
, 0x7, 0x7);
4665 mwl8k_fw_unlock(hw
);
4671 mwl8k_bss_info_changed_sta(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4672 struct ieee80211_bss_conf
*info
, u32 changed
)
4674 struct mwl8k_priv
*priv
= hw
->priv
;
4675 u32 ap_legacy_rates
= 0;
4676 u8 ap_mcs_rates
[16];
4679 if (mwl8k_fw_lock(hw
))
4683 * No need to capture a beacon if we're no longer associated.
4685 if ((changed
& BSS_CHANGED_ASSOC
) && !vif
->bss_conf
.assoc
)
4686 priv
->capture_beacon
= false;
4689 * Get the AP's legacy and MCS rates.
4691 if (vif
->bss_conf
.assoc
) {
4692 struct ieee80211_sta
*ap
;
4696 ap
= ieee80211_find_sta(vif
, vif
->bss_conf
.bssid
);
4702 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
) {
4703 ap_legacy_rates
= ap
->supp_rates
[IEEE80211_BAND_2GHZ
];
4706 ap
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4708 memcpy(ap_mcs_rates
, ap
->ht_cap
.mcs
.rx_mask
, 16);
4713 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
) {
4714 rc
= mwl8k_cmd_set_rate(hw
, vif
, ap_legacy_rates
, ap_mcs_rates
);
4718 rc
= mwl8k_cmd_use_fixed_rate_sta(hw
);
4723 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4724 rc
= mwl8k_set_radio_preamble(hw
,
4725 vif
->bss_conf
.use_short_preamble
);
4730 if (changed
& BSS_CHANGED_ERP_SLOT
) {
4731 rc
= mwl8k_cmd_set_slot(hw
, vif
->bss_conf
.use_short_slot
);
4736 if (vif
->bss_conf
.assoc
&&
4737 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_ERP_CTS_PROT
|
4739 rc
= mwl8k_cmd_set_aid(hw
, vif
, ap_legacy_rates
);
4744 if (vif
->bss_conf
.assoc
&&
4745 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_BEACON_INT
))) {
4747 * Finalize the join. Tell rx handler to process
4748 * next beacon from our BSSID.
4750 memcpy(priv
->capture_bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
4751 priv
->capture_beacon
= true;
4755 mwl8k_fw_unlock(hw
);
4759 mwl8k_bss_info_changed_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4760 struct ieee80211_bss_conf
*info
, u32 changed
)
4764 if (mwl8k_fw_lock(hw
))
4767 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4768 rc
= mwl8k_set_radio_preamble(hw
,
4769 vif
->bss_conf
.use_short_preamble
);
4774 if (changed
& BSS_CHANGED_BASIC_RATES
) {
4779 * Use lowest supported basic rate for multicasts
4780 * and management frames (such as probe responses --
4781 * beacons will always go out at 1 Mb/s).
4783 idx
= ffs(vif
->bss_conf
.basic_rates
);
4787 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
4788 rate
= mwl8k_rates_24
[idx
].hw_value
;
4790 rate
= mwl8k_rates_50
[idx
].hw_value
;
4792 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
4795 if (changed
& (BSS_CHANGED_BEACON_INT
| BSS_CHANGED_BEACON
)) {
4796 struct sk_buff
*skb
;
4798 skb
= ieee80211_beacon_get(hw
, vif
);
4800 mwl8k_cmd_set_beacon(hw
, vif
, skb
->data
, skb
->len
);
4805 if (changed
& BSS_CHANGED_BEACON_ENABLED
)
4806 mwl8k_cmd_bss_start(hw
, vif
, info
->enable_beacon
);
4809 mwl8k_fw_unlock(hw
);
4813 mwl8k_bss_info_changed(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4814 struct ieee80211_bss_conf
*info
, u32 changed
)
4816 struct mwl8k_priv
*priv
= hw
->priv
;
4819 mwl8k_bss_info_changed_sta(hw
, vif
, info
, changed
);
4821 mwl8k_bss_info_changed_ap(hw
, vif
, info
, changed
);
4824 static u64
mwl8k_prepare_multicast(struct ieee80211_hw
*hw
,
4825 struct netdev_hw_addr_list
*mc_list
)
4827 struct mwl8k_cmd_pkt
*cmd
;
4830 * Synthesize and return a command packet that programs the
4831 * hardware multicast address filter. At this point we don't
4832 * know whether FIF_ALLMULTI is being requested, but if it is,
4833 * we'll end up throwing this packet away and creating a new
4834 * one in mwl8k_configure_filter().
4836 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 0, mc_list
);
4838 return (unsigned long)cmd
;
4842 mwl8k_configure_filter_sniffer(struct ieee80211_hw
*hw
,
4843 unsigned int changed_flags
,
4844 unsigned int *total_flags
)
4846 struct mwl8k_priv
*priv
= hw
->priv
;
4849 * Hardware sniffer mode is mutually exclusive with STA
4850 * operation, so refuse to enable sniffer mode if a STA
4851 * interface is active.
4853 if (!list_empty(&priv
->vif_list
)) {
4854 if (net_ratelimit())
4855 wiphy_info(hw
->wiphy
,
4856 "not enabling sniffer mode because STA interface is active\n");
4860 if (!priv
->sniffer_enabled
) {
4861 if (mwl8k_cmd_enable_sniffer(hw
, 1))
4863 priv
->sniffer_enabled
= true;
4866 *total_flags
&= FIF_PROMISC_IN_BSS
| FIF_ALLMULTI
|
4867 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
|
4873 static struct mwl8k_vif
*mwl8k_first_vif(struct mwl8k_priv
*priv
)
4875 if (!list_empty(&priv
->vif_list
))
4876 return list_entry(priv
->vif_list
.next
, struct mwl8k_vif
, list
);
4881 static void mwl8k_configure_filter(struct ieee80211_hw
*hw
,
4882 unsigned int changed_flags
,
4883 unsigned int *total_flags
,
4886 struct mwl8k_priv
*priv
= hw
->priv
;
4887 struct mwl8k_cmd_pkt
*cmd
= (void *)(unsigned long)multicast
;
4890 * AP firmware doesn't allow fine-grained control over
4891 * the receive filter.
4894 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
4900 * Enable hardware sniffer mode if FIF_CONTROL or
4901 * FIF_OTHER_BSS is requested.
4903 if (*total_flags
& (FIF_CONTROL
| FIF_OTHER_BSS
) &&
4904 mwl8k_configure_filter_sniffer(hw
, changed_flags
, total_flags
)) {
4909 /* Clear unsupported feature flags */
4910 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
4912 if (mwl8k_fw_lock(hw
)) {
4917 if (priv
->sniffer_enabled
) {
4918 mwl8k_cmd_enable_sniffer(hw
, 0);
4919 priv
->sniffer_enabled
= false;
4922 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
4923 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
) {
4925 * Disable the BSS filter.
4927 mwl8k_cmd_set_pre_scan(hw
);
4929 struct mwl8k_vif
*mwl8k_vif
;
4933 * Enable the BSS filter.
4935 * If there is an active STA interface, use that
4936 * interface's BSSID, otherwise use a dummy one
4937 * (where the OUI part needs to be nonzero for
4938 * the BSSID to be accepted by POST_SCAN).
4940 mwl8k_vif
= mwl8k_first_vif(priv
);
4941 if (mwl8k_vif
!= NULL
)
4942 bssid
= mwl8k_vif
->vif
->bss_conf
.bssid
;
4944 bssid
= "\x01\x00\x00\x00\x00\x00";
4946 mwl8k_cmd_set_post_scan(hw
, bssid
);
4951 * If FIF_ALLMULTI is being requested, throw away the command
4952 * packet that ->prepare_multicast() built and replace it with
4953 * a command packet that enables reception of all multicast
4956 if (*total_flags
& FIF_ALLMULTI
) {
4958 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 1, NULL
);
4962 mwl8k_post_cmd(hw
, cmd
);
4966 mwl8k_fw_unlock(hw
);
4969 static int mwl8k_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
4971 return mwl8k_cmd_set_rts_threshold(hw
, value
);
4974 static int mwl8k_sta_remove(struct ieee80211_hw
*hw
,
4975 struct ieee80211_vif
*vif
,
4976 struct ieee80211_sta
*sta
)
4978 struct mwl8k_priv
*priv
= hw
->priv
;
4981 return mwl8k_cmd_set_new_stn_del(hw
, vif
, sta
->addr
);
4983 return mwl8k_cmd_update_stadb_del(hw
, vif
, sta
->addr
);
4986 static int mwl8k_sta_add(struct ieee80211_hw
*hw
,
4987 struct ieee80211_vif
*vif
,
4988 struct ieee80211_sta
*sta
)
4990 struct mwl8k_priv
*priv
= hw
->priv
;
4993 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4994 struct ieee80211_key_conf
*key
;
4997 ret
= mwl8k_cmd_update_stadb_add(hw
, vif
, sta
);
4999 MWL8K_STA(sta
)->peer_id
= ret
;
5000 if (sta
->ht_cap
.ht_supported
)
5001 MWL8K_STA(sta
)->is_ampdu_allowed
= true;
5006 ret
= mwl8k_cmd_set_new_stn_add(hw
, vif
, sta
);
5009 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
5010 key
= IEEE80211_KEY_CONF(mwl8k_vif
->wep_key_conf
[i
].key
);
5011 if (mwl8k_vif
->wep_key_conf
[i
].enabled
)
5012 mwl8k_set_key(hw
, SET_KEY
, vif
, sta
, key
);
5017 static int mwl8k_conf_tx(struct ieee80211_hw
*hw
,
5018 struct ieee80211_vif
*vif
, u16 queue
,
5019 const struct ieee80211_tx_queue_params
*params
)
5021 struct mwl8k_priv
*priv
= hw
->priv
;
5024 rc
= mwl8k_fw_lock(hw
);
5026 BUG_ON(queue
> MWL8K_TX_WMM_QUEUES
- 1);
5027 memcpy(&priv
->wmm_params
[queue
], params
, sizeof(*params
));
5029 if (!priv
->wmm_enabled
)
5030 rc
= mwl8k_cmd_set_wmm_mode(hw
, 1);
5033 int q
= MWL8K_TX_WMM_QUEUES
- 1 - queue
;
5034 rc
= mwl8k_cmd_set_edca_params(hw
, q
,
5041 mwl8k_fw_unlock(hw
);
5047 static int mwl8k_get_stats(struct ieee80211_hw
*hw
,
5048 struct ieee80211_low_level_stats
*stats
)
5050 return mwl8k_cmd_get_stat(hw
, stats
);
5053 static int mwl8k_get_survey(struct ieee80211_hw
*hw
, int idx
,
5054 struct survey_info
*survey
)
5056 struct mwl8k_priv
*priv
= hw
->priv
;
5057 struct ieee80211_conf
*conf
= &hw
->conf
;
5062 survey
->channel
= conf
->channel
;
5063 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
5064 survey
->noise
= priv
->noise
;
5069 #define MAX_AMPDU_ATTEMPTS 5
5072 mwl8k_ampdu_action(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5073 enum ieee80211_ampdu_mlme_action action
,
5074 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
5079 struct mwl8k_priv
*priv
= hw
->priv
;
5080 struct mwl8k_ampdu_stream
*stream
;
5081 u8
*addr
= sta
->addr
;
5083 if (!(hw
->flags
& IEEE80211_HW_AMPDU_AGGREGATION
))
5086 spin_lock(&priv
->stream_lock
);
5087 stream
= mwl8k_lookup_stream(hw
, addr
, tid
);
5090 case IEEE80211_AMPDU_RX_START
:
5091 case IEEE80211_AMPDU_RX_STOP
:
5093 case IEEE80211_AMPDU_TX_START
:
5094 /* By the time we get here the hw queues may contain outgoing
5095 * packets for this RA/TID that are not part of this BA
5096 * session. The hw will assign sequence numbers to these
5097 * packets as they go out. So if we query the hw for its next
5098 * sequence number and use that for the SSN here, it may end up
5099 * being wrong, which will lead to sequence number mismatch at
5100 * the recipient. To avoid this, we reset the sequence number
5101 * to O for the first MPDU in this BA stream.
5104 if (stream
== NULL
) {
5105 /* This means that somebody outside this driver called
5106 * ieee80211_start_tx_ba_session. This is unexpected
5107 * because we do our own rate control. Just warn and
5110 wiphy_warn(hw
->wiphy
, "Unexpected call to %s. "
5111 "Proceeding anyway.\n", __func__
);
5112 stream
= mwl8k_add_stream(hw
, sta
, tid
);
5114 if (stream
== NULL
) {
5115 wiphy_debug(hw
->wiphy
, "no free AMPDU streams\n");
5119 stream
->state
= AMPDU_STREAM_IN_PROGRESS
;
5121 /* Release the lock before we do the time consuming stuff */
5122 spin_unlock(&priv
->stream_lock
);
5123 for (i
= 0; i
< MAX_AMPDU_ATTEMPTS
; i
++) {
5124 rc
= mwl8k_check_ba(hw
, stream
);
5126 /* If HW restart is in progress mwl8k_post_cmd will
5127 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5130 if (!rc
|| rc
== -EBUSY
)
5133 * HW queues take time to be flushed, give them
5139 spin_lock(&priv
->stream_lock
);
5141 wiphy_err(hw
->wiphy
, "Stream for tid %d busy after %d"
5142 " attempts\n", tid
, MAX_AMPDU_ATTEMPTS
);
5143 mwl8k_remove_stream(hw
, stream
);
5147 ieee80211_start_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5149 case IEEE80211_AMPDU_TX_STOP
:
5151 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
5152 spin_unlock(&priv
->stream_lock
);
5153 mwl8k_destroy_ba(hw
, stream
);
5154 spin_lock(&priv
->stream_lock
);
5156 mwl8k_remove_stream(hw
, stream
);
5158 ieee80211_stop_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5160 case IEEE80211_AMPDU_TX_OPERATIONAL
:
5161 BUG_ON(stream
== NULL
);
5162 BUG_ON(stream
->state
!= AMPDU_STREAM_IN_PROGRESS
);
5163 spin_unlock(&priv
->stream_lock
);
5164 rc
= mwl8k_create_ba(hw
, stream
, buf_size
);
5165 spin_lock(&priv
->stream_lock
);
5167 stream
->state
= AMPDU_STREAM_ACTIVE
;
5169 spin_unlock(&priv
->stream_lock
);
5170 mwl8k_destroy_ba(hw
, stream
);
5171 spin_lock(&priv
->stream_lock
);
5172 wiphy_debug(hw
->wiphy
,
5173 "Failed adding stream for sta %pM tid %d\n",
5175 mwl8k_remove_stream(hw
, stream
);
5183 spin_unlock(&priv
->stream_lock
);
5187 static const struct ieee80211_ops mwl8k_ops
= {
5189 .start
= mwl8k_start
,
5191 .add_interface
= mwl8k_add_interface
,
5192 .remove_interface
= mwl8k_remove_interface
,
5193 .config
= mwl8k_config
,
5194 .bss_info_changed
= mwl8k_bss_info_changed
,
5195 .prepare_multicast
= mwl8k_prepare_multicast
,
5196 .configure_filter
= mwl8k_configure_filter
,
5197 .set_key
= mwl8k_set_key
,
5198 .set_rts_threshold
= mwl8k_set_rts_threshold
,
5199 .sta_add
= mwl8k_sta_add
,
5200 .sta_remove
= mwl8k_sta_remove
,
5201 .conf_tx
= mwl8k_conf_tx
,
5202 .get_stats
= mwl8k_get_stats
,
5203 .get_survey
= mwl8k_get_survey
,
5204 .ampdu_action
= mwl8k_ampdu_action
,
5207 static void mwl8k_finalize_join_worker(struct work_struct
*work
)
5209 struct mwl8k_priv
*priv
=
5210 container_of(work
, struct mwl8k_priv
, finalize_join_worker
);
5211 struct sk_buff
*skb
= priv
->beacon_skb
;
5212 struct ieee80211_mgmt
*mgmt
= (void *)skb
->data
;
5213 int len
= skb
->len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
5214 const u8
*tim
= cfg80211_find_ie(WLAN_EID_TIM
,
5215 mgmt
->u
.beacon
.variable
, len
);
5216 int dtim_period
= 1;
5218 if (tim
&& tim
[1] >= 2)
5219 dtim_period
= tim
[3];
5221 mwl8k_cmd_finalize_join(priv
->hw
, skb
->data
, skb
->len
, dtim_period
);
5224 priv
->beacon_skb
= NULL
;
5233 #define MWL8K_8366_AP_FW_API 2
5234 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5235 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5237 static struct mwl8k_device_info mwl8k_info_tbl
[] __devinitdata
= {
5239 .part_name
= "88w8363",
5240 .helper_image
= "mwl8k/helper_8363.fw",
5241 .fw_image_sta
= "mwl8k/fmimage_8363.fw",
5244 .part_name
= "88w8687",
5245 .helper_image
= "mwl8k/helper_8687.fw",
5246 .fw_image_sta
= "mwl8k/fmimage_8687.fw",
5249 .part_name
= "88w8366",
5250 .helper_image
= "mwl8k/helper_8366.fw",
5251 .fw_image_sta
= "mwl8k/fmimage_8366.fw",
5252 .fw_image_ap
= MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
),
5253 .fw_api_ap
= MWL8K_8366_AP_FW_API
,
5254 .ap_rxd_ops
= &rxd_8366_ap_ops
,
5258 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5259 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5260 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5261 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5262 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5263 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5264 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
));
5266 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table
) = {
5267 { PCI_VDEVICE(MARVELL
, 0x2a0a), .driver_data
= MWL8363
, },
5268 { PCI_VDEVICE(MARVELL
, 0x2a0c), .driver_data
= MWL8363
, },
5269 { PCI_VDEVICE(MARVELL
, 0x2a24), .driver_data
= MWL8363
, },
5270 { PCI_VDEVICE(MARVELL
, 0x2a2b), .driver_data
= MWL8687
, },
5271 { PCI_VDEVICE(MARVELL
, 0x2a30), .driver_data
= MWL8687
, },
5272 { PCI_VDEVICE(MARVELL
, 0x2a40), .driver_data
= MWL8366
, },
5273 { PCI_VDEVICE(MARVELL
, 0x2a43), .driver_data
= MWL8366
, },
5276 MODULE_DEVICE_TABLE(pci
, mwl8k_pci_id_table
);
5278 static int mwl8k_request_alt_fw(struct mwl8k_priv
*priv
)
5281 printk(KERN_ERR
"%s: Error requesting preferred fw %s.\n"
5282 "Trying alternative firmware %s\n", pci_name(priv
->pdev
),
5283 priv
->fw_pref
, priv
->fw_alt
);
5284 rc
= mwl8k_request_fw(priv
, priv
->fw_alt
, &priv
->fw_ucode
, true);
5286 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5287 pci_name(priv
->pdev
), priv
->fw_alt
);
5293 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
);
5294 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
)
5296 struct mwl8k_priv
*priv
= context
;
5297 struct mwl8k_device_info
*di
= priv
->device_info
;
5300 switch (priv
->fw_state
) {
5303 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
5304 pci_name(priv
->pdev
), di
->helper_image
);
5307 priv
->fw_helper
= fw
;
5308 rc
= mwl8k_request_fw(priv
, priv
->fw_pref
, &priv
->fw_ucode
,
5310 if (rc
&& priv
->fw_alt
) {
5311 rc
= mwl8k_request_alt_fw(priv
);
5314 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5318 priv
->fw_state
= FW_STATE_LOADING_PREF
;
5321 case FW_STATE_LOADING_PREF
:
5324 rc
= mwl8k_request_alt_fw(priv
);
5327 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5331 priv
->fw_ucode
= fw
;
5332 rc
= mwl8k_firmware_load_success(priv
);
5336 complete(&priv
->firmware_loading_complete
);
5340 case FW_STATE_LOADING_ALT
:
5342 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5343 pci_name(priv
->pdev
), di
->helper_image
);
5346 priv
->fw_ucode
= fw
;
5347 rc
= mwl8k_firmware_load_success(priv
);
5351 complete(&priv
->firmware_loading_complete
);
5355 printk(KERN_ERR
"%s: Unexpected firmware loading state: %d\n",
5356 MWL8K_NAME
, priv
->fw_state
);
5363 priv
->fw_state
= FW_STATE_ERROR
;
5364 complete(&priv
->firmware_loading_complete
);
5365 device_release_driver(&priv
->pdev
->dev
);
5366 mwl8k_release_firmware(priv
);
5369 #define MAX_RESTART_ATTEMPTS 1
5370 static int mwl8k_init_firmware(struct ieee80211_hw
*hw
, char *fw_image
,
5373 struct mwl8k_priv
*priv
= hw
->priv
;
5375 int count
= MAX_RESTART_ATTEMPTS
;
5378 /* Reset firmware and hardware */
5379 mwl8k_hw_reset(priv
);
5381 /* Ask userland hotplug daemon for the device firmware */
5382 rc
= mwl8k_request_firmware(priv
, fw_image
, nowait
);
5384 wiphy_err(hw
->wiphy
, "Firmware files not found\n");
5391 /* Load firmware into hardware */
5392 rc
= mwl8k_load_firmware(hw
);
5394 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5396 /* Reclaim memory once firmware is successfully loaded */
5397 mwl8k_release_firmware(priv
);
5400 /* FW did not start successfully;
5401 * lets try one more time
5404 wiphy_err(hw
->wiphy
, "Trying to reload the firmware again\n");
5412 static int mwl8k_init_txqs(struct ieee80211_hw
*hw
)
5414 struct mwl8k_priv
*priv
= hw
->priv
;
5418 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
5419 rc
= mwl8k_txq_init(hw
, i
);
5423 iowrite32(priv
->txq
[i
].txd_dma
,
5424 priv
->sram
+ priv
->txq_offset
[i
]);
5429 /* initialize hw after successfully loading a firmware image */
5430 static int mwl8k_probe_hw(struct ieee80211_hw
*hw
)
5432 struct mwl8k_priv
*priv
= hw
->priv
;
5437 priv
->rxd_ops
= priv
->device_info
->ap_rxd_ops
;
5438 if (priv
->rxd_ops
== NULL
) {
5439 wiphy_err(hw
->wiphy
,
5440 "Driver does not have AP firmware image support for this hardware\n");
5441 goto err_stop_firmware
;
5444 priv
->rxd_ops
= &rxd_sta_ops
;
5447 priv
->sniffer_enabled
= false;
5448 priv
->wmm_enabled
= false;
5449 priv
->pending_tx_pkts
= 0;
5451 rc
= mwl8k_rxq_init(hw
, 0);
5453 goto err_stop_firmware
;
5454 rxq_refill(hw
, 0, INT_MAX
);
5456 /* For the sta firmware, we need to know the dma addresses of tx queues
5457 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5458 * prior to issuing this command. But for the AP case, we learn the
5459 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5460 * case we must initialize the tx queues after.
5462 priv
->num_ampdu_queues
= 0;
5464 rc
= mwl8k_init_txqs(hw
);
5466 goto err_free_queues
;
5469 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
5470 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5471 iowrite32(MWL8K_A2H_INT_TX_DONE
|MWL8K_A2H_INT_RX_READY
|
5472 MWL8K_A2H_INT_BA_WATCHDOG
,
5473 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL
);
5474 iowrite32(MWL8K_A2H_INT_OPC_DONE
,
5475 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
5477 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
5478 IRQF_SHARED
, MWL8K_NAME
, hw
);
5480 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
5481 goto err_free_queues
;
5485 * When hw restart is requested,
5486 * mac80211 will take care of clearing
5487 * the ampdu streams, so do not clear
5488 * the ampdu state here
5490 if (!priv
->hw_restart_in_progress
)
5491 memset(priv
->ampdu
, 0, sizeof(priv
->ampdu
));
5494 * Temporarily enable interrupts. Initial firmware host
5495 * commands use interrupts and avoid polling. Disable
5496 * interrupts when done.
5498 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5500 /* Get config data, mac addrs etc */
5502 rc
= mwl8k_cmd_get_hw_spec_ap(hw
);
5504 rc
= mwl8k_init_txqs(hw
);
5506 rc
= mwl8k_cmd_set_hw_spec(hw
);
5508 rc
= mwl8k_cmd_get_hw_spec_sta(hw
);
5511 wiphy_err(hw
->wiphy
, "Cannot initialise firmware\n");
5515 /* Turn radio off */
5516 rc
= mwl8k_cmd_radio_disable(hw
);
5518 wiphy_err(hw
->wiphy
, "Cannot disable\n");
5522 /* Clear MAC address */
5523 rc
= mwl8k_cmd_set_mac_addr(hw
, NULL
, "\x00\x00\x00\x00\x00\x00");
5525 wiphy_err(hw
->wiphy
, "Cannot clear MAC address\n");
5529 /* Disable interrupts */
5530 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5531 free_irq(priv
->pdev
->irq
, hw
);
5533 wiphy_info(hw
->wiphy
, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5534 priv
->device_info
->part_name
,
5535 priv
->hw_rev
, hw
->wiphy
->perm_addr
,
5536 priv
->ap_fw
? "AP" : "STA",
5537 (priv
->fw_rev
>> 24) & 0xff, (priv
->fw_rev
>> 16) & 0xff,
5538 (priv
->fw_rev
>> 8) & 0xff, priv
->fw_rev
& 0xff);
5543 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5544 free_irq(priv
->pdev
->irq
, hw
);
5547 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5548 mwl8k_txq_deinit(hw
, i
);
5549 mwl8k_rxq_deinit(hw
, 0);
5552 mwl8k_hw_reset(priv
);
5558 * invoke mwl8k_reload_firmware to change the firmware image after the device
5559 * has already been registered
5561 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
)
5564 struct mwl8k_priv
*priv
= hw
->priv
;
5565 struct mwl8k_vif
*vif
, *tmp_vif
;
5568 mwl8k_rxq_deinit(hw
, 0);
5571 * All the existing interfaces are re-added by the ieee80211_reconfig;
5572 * which means driver should remove existing interfaces before calling
5573 * ieee80211_restart_hw
5575 if (priv
->hw_restart_in_progress
)
5576 list_for_each_entry_safe(vif
, tmp_vif
, &priv
->vif_list
, list
)
5577 mwl8k_remove_vif(priv
, vif
);
5579 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5580 mwl8k_txq_deinit(hw
, i
);
5582 rc
= mwl8k_init_firmware(hw
, fw_image
, false);
5586 rc
= mwl8k_probe_hw(hw
);
5590 if (priv
->hw_restart_in_progress
)
5593 rc
= mwl8k_start(hw
);
5597 rc
= mwl8k_config(hw
, ~0);
5601 for (i
= 0; i
< MWL8K_TX_WMM_QUEUES
; i
++) {
5602 rc
= mwl8k_conf_tx(hw
, NULL
, i
, &priv
->wmm_params
[i
]);
5610 printk(KERN_WARNING
"mwl8k: Failed to reload firmware image.\n");
5614 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
)
5616 struct ieee80211_hw
*hw
= priv
->hw
;
5619 rc
= mwl8k_load_firmware(hw
);
5620 mwl8k_release_firmware(priv
);
5622 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5627 * Extra headroom is the size of the required DMA header
5628 * minus the size of the smallest 802.11 frame (CTS frame).
5630 hw
->extra_tx_headroom
=
5631 sizeof(struct mwl8k_dma_data
) - sizeof(struct ieee80211_cts
);
5633 hw
->extra_tx_headroom
-= priv
->ap_fw
? REDUCED_TX_HEADROOM
: 0;
5635 hw
->channel_change_time
= 10;
5637 hw
->queues
= MWL8K_TX_WMM_QUEUES
;
5639 /* Set rssi values to dBm */
5640 hw
->flags
|= IEEE80211_HW_SIGNAL_DBM
| IEEE80211_HW_HAS_RATE_CONTROL
;
5643 * Ask mac80211 to not to trigger PS mode
5644 * based on PM bit of incoming frames.
5647 hw
->flags
|= IEEE80211_HW_AP_LINK_PS
;
5649 hw
->vif_data_size
= sizeof(struct mwl8k_vif
);
5650 hw
->sta_data_size
= sizeof(struct mwl8k_sta
);
5652 priv
->macids_used
= 0;
5653 INIT_LIST_HEAD(&priv
->vif_list
);
5655 /* Set default radio state and preamble */
5656 priv
->radio_on
= false;
5657 priv
->radio_short_preamble
= false;
5659 /* Finalize join worker */
5660 INIT_WORK(&priv
->finalize_join_worker
, mwl8k_finalize_join_worker
);
5661 /* Handle watchdog ba events */
5662 INIT_WORK(&priv
->watchdog_ba_handle
, mwl8k_watchdog_ba_events
);
5663 /* To reload the firmware if it crashes */
5664 INIT_WORK(&priv
->fw_reload
, mwl8k_hw_restart_work
);
5666 /* TX reclaim and RX tasklets. */
5667 tasklet_init(&priv
->poll_tx_task
, mwl8k_tx_poll
, (unsigned long)hw
);
5668 tasklet_disable(&priv
->poll_tx_task
);
5669 tasklet_init(&priv
->poll_rx_task
, mwl8k_rx_poll
, (unsigned long)hw
);
5670 tasklet_disable(&priv
->poll_rx_task
);
5672 /* Power management cookie */
5673 priv
->cookie
= pci_alloc_consistent(priv
->pdev
, 4, &priv
->cookie_dma
);
5674 if (priv
->cookie
== NULL
)
5677 mutex_init(&priv
->fw_mutex
);
5678 priv
->fw_mutex_owner
= NULL
;
5679 priv
->fw_mutex_depth
= 0;
5680 priv
->hostcmd_wait
= NULL
;
5682 spin_lock_init(&priv
->tx_lock
);
5684 spin_lock_init(&priv
->stream_lock
);
5686 priv
->tx_wait
= NULL
;
5688 rc
= mwl8k_probe_hw(hw
);
5690 goto err_free_cookie
;
5692 hw
->wiphy
->interface_modes
= 0;
5693 if (priv
->ap_macids_supported
|| priv
->device_info
->fw_image_ap
)
5694 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_AP
);
5695 if (priv
->sta_macids_supported
|| priv
->device_info
->fw_image_sta
)
5696 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
5698 rc
= ieee80211_register_hw(hw
);
5700 wiphy_err(hw
->wiphy
, "Cannot register device\n");
5701 goto err_unprobe_hw
;
5707 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5708 mwl8k_txq_deinit(hw
, i
);
5709 mwl8k_rxq_deinit(hw
, 0);
5712 if (priv
->cookie
!= NULL
)
5713 pci_free_consistent(priv
->pdev
, 4,
5714 priv
->cookie
, priv
->cookie_dma
);
5718 static int __devinit
mwl8k_probe(struct pci_dev
*pdev
,
5719 const struct pci_device_id
*id
)
5721 static int printed_version
;
5722 struct ieee80211_hw
*hw
;
5723 struct mwl8k_priv
*priv
;
5724 struct mwl8k_device_info
*di
;
5727 if (!printed_version
) {
5728 printk(KERN_INFO
"%s version %s\n", MWL8K_DESC
, MWL8K_VERSION
);
5729 printed_version
= 1;
5733 rc
= pci_enable_device(pdev
);
5735 printk(KERN_ERR
"%s: Cannot enable new PCI device\n",
5740 rc
= pci_request_regions(pdev
, MWL8K_NAME
);
5742 printk(KERN_ERR
"%s: Cannot obtain PCI resources\n",
5744 goto err_disable_device
;
5747 pci_set_master(pdev
);
5750 hw
= ieee80211_alloc_hw(sizeof(*priv
), &mwl8k_ops
);
5752 printk(KERN_ERR
"%s: ieee80211 alloc failed\n", MWL8K_NAME
);
5757 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
5758 pci_set_drvdata(pdev
, hw
);
5763 priv
->device_info
= &mwl8k_info_tbl
[id
->driver_data
];
5766 priv
->sram
= pci_iomap(pdev
, 0, 0x10000);
5767 if (priv
->sram
== NULL
) {
5768 wiphy_err(hw
->wiphy
, "Cannot map device SRAM\n");
5773 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
5774 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
5776 priv
->regs
= pci_iomap(pdev
, 1, 0x10000);
5777 if (priv
->regs
== NULL
) {
5778 priv
->regs
= pci_iomap(pdev
, 2, 0x10000);
5779 if (priv
->regs
== NULL
) {
5780 wiphy_err(hw
->wiphy
, "Cannot map device registers\n");
5786 * Choose the initial fw image depending on user input. If a second
5787 * image is available, make it the alternative image that will be
5788 * loaded if the first one fails.
5790 init_completion(&priv
->firmware_loading_complete
);
5791 di
= priv
->device_info
;
5792 if (ap_mode_default
&& di
->fw_image_ap
) {
5793 priv
->fw_pref
= di
->fw_image_ap
;
5794 priv
->fw_alt
= di
->fw_image_sta
;
5795 } else if (!ap_mode_default
&& di
->fw_image_sta
) {
5796 priv
->fw_pref
= di
->fw_image_sta
;
5797 priv
->fw_alt
= di
->fw_image_ap
;
5798 } else if (ap_mode_default
&& !di
->fw_image_ap
&& di
->fw_image_sta
) {
5799 printk(KERN_WARNING
"AP fw is unavailable. Using STA fw.");
5800 priv
->fw_pref
= di
->fw_image_sta
;
5801 } else if (!ap_mode_default
&& !di
->fw_image_sta
&& di
->fw_image_ap
) {
5802 printk(KERN_WARNING
"STA fw is unavailable. Using AP fw.");
5803 priv
->fw_pref
= di
->fw_image_ap
;
5805 rc
= mwl8k_init_firmware(hw
, priv
->fw_pref
, true);
5807 goto err_stop_firmware
;
5809 priv
->hw_restart_in_progress
= false;
5814 mwl8k_hw_reset(priv
);
5817 if (priv
->regs
!= NULL
)
5818 pci_iounmap(pdev
, priv
->regs
);
5820 if (priv
->sram
!= NULL
)
5821 pci_iounmap(pdev
, priv
->sram
);
5823 pci_set_drvdata(pdev
, NULL
);
5824 ieee80211_free_hw(hw
);
5827 pci_release_regions(pdev
);
5830 pci_disable_device(pdev
);
5835 static void __devexit
mwl8k_shutdown(struct pci_dev
*pdev
)
5837 printk(KERN_ERR
"===>%s(%u)\n", __func__
, __LINE__
);
5840 static void __devexit
mwl8k_remove(struct pci_dev
*pdev
)
5842 struct ieee80211_hw
*hw
= pci_get_drvdata(pdev
);
5843 struct mwl8k_priv
*priv
;
5850 wait_for_completion(&priv
->firmware_loading_complete
);
5852 if (priv
->fw_state
== FW_STATE_ERROR
) {
5853 mwl8k_hw_reset(priv
);
5857 ieee80211_stop_queues(hw
);
5859 ieee80211_unregister_hw(hw
);
5861 /* Remove TX reclaim and RX tasklets. */
5862 tasklet_kill(&priv
->poll_tx_task
);
5863 tasklet_kill(&priv
->poll_rx_task
);
5866 mwl8k_hw_reset(priv
);
5868 /* Return all skbs to mac80211 */
5869 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5870 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
5872 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5873 mwl8k_txq_deinit(hw
, i
);
5875 mwl8k_rxq_deinit(hw
, 0);
5877 pci_free_consistent(priv
->pdev
, 4, priv
->cookie
, priv
->cookie_dma
);
5880 pci_iounmap(pdev
, priv
->regs
);
5881 pci_iounmap(pdev
, priv
->sram
);
5882 pci_set_drvdata(pdev
, NULL
);
5883 ieee80211_free_hw(hw
);
5884 pci_release_regions(pdev
);
5885 pci_disable_device(pdev
);
5888 static struct pci_driver mwl8k_driver
= {
5890 .id_table
= mwl8k_pci_id_table
,
5891 .probe
= mwl8k_probe
,
5892 .remove
= __devexit_p(mwl8k_remove
),
5893 .shutdown
= __devexit_p(mwl8k_shutdown
),
5896 module_pci_driver(mwl8k_driver
);
5898 MODULE_DESCRIPTION(MWL8K_DESC
);
5899 MODULE_VERSION(MWL8K_VERSION
);
5900 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
5901 MODULE_LICENSE("GPL");