2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/init.h>
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/sched.h>
17 #include <linux/spinlock.h>
18 #include <linux/list.h>
19 #include <linux/pci.h>
20 #include <linux/delay.h>
21 #include <linux/completion.h>
22 #include <linux/etherdevice.h>
23 #include <linux/slab.h>
24 #include <net/mac80211.h>
25 #include <linux/moduleparam.h>
26 #include <linux/firmware.h>
27 #include <linux/workqueue.h>
29 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
30 #define MWL8K_NAME KBUILD_MODNAME
31 #define MWL8K_VERSION "0.13"
33 /* Module parameters */
34 static bool ap_mode_default
;
35 module_param(ap_mode_default
, bool, 0);
36 MODULE_PARM_DESC(ap_mode_default
,
37 "Set to 1 to make ap mode the default instead of sta mode");
39 /* Register definitions */
40 #define MWL8K_HIU_GEN_PTR 0x00000c10
41 #define MWL8K_MODE_STA 0x0000005a
42 #define MWL8K_MODE_AP 0x000000a5
43 #define MWL8K_HIU_INT_CODE 0x00000c14
44 #define MWL8K_FWSTA_READY 0xf0f1f2f4
45 #define MWL8K_FWAP_READY 0xf1f2f4a5
46 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
47 #define MWL8K_HIU_SCRATCH 0x00000c40
49 /* Host->device communications */
50 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
51 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
52 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
53 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
54 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
55 #define MWL8K_H2A_INT_DUMMY (1 << 20)
56 #define MWL8K_H2A_INT_RESET (1 << 15)
57 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
58 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
60 /* Device->host communications */
61 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
62 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
63 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
64 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
65 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
66 #define MWL8K_A2H_INT_DUMMY (1 << 20)
67 #define MWL8K_A2H_INT_BA_WATCHDOG (1 << 14)
68 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
69 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
70 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
71 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
72 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
73 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
74 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
75 #define MWL8K_A2H_INT_RX_READY (1 << 1)
76 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
78 /* HW micro second timer register
79 * located at offset 0xA600. This
80 * will be used to timestamp tx
84 #define MWL8K_HW_TIMER_REGISTER 0x0000a600
86 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
87 MWL8K_A2H_INT_CHNL_SWITCHED | \
88 MWL8K_A2H_INT_QUEUE_EMPTY | \
89 MWL8K_A2H_INT_RADAR_DETECT | \
90 MWL8K_A2H_INT_RADIO_ON | \
91 MWL8K_A2H_INT_RADIO_OFF | \
92 MWL8K_A2H_INT_MAC_EVENT | \
93 MWL8K_A2H_INT_OPC_DONE | \
94 MWL8K_A2H_INT_RX_READY | \
95 MWL8K_A2H_INT_TX_DONE | \
96 MWL8K_A2H_INT_BA_WATCHDOG)
98 #define MWL8K_RX_QUEUES 1
99 #define MWL8K_TX_WMM_QUEUES 4
100 #define MWL8K_MAX_AMPDU_QUEUES 8
101 #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
102 #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
106 void (*rxd_init
)(void *rxd
, dma_addr_t next_dma_addr
);
107 void (*rxd_refill
)(void *rxd
, dma_addr_t addr
, int len
);
108 int (*rxd_process
)(void *rxd
, struct ieee80211_rx_status
*status
,
109 __le16
*qos
, s8
*noise
);
112 struct mwl8k_device_info
{
117 struct rxd_ops
*ap_rxd_ops
;
121 struct mwl8k_rx_queue
{
124 /* hw receives here */
127 /* refill descs here */
134 DEFINE_DMA_UNMAP_ADDR(dma
);
138 struct mwl8k_tx_queue
{
139 /* hw transmits here */
142 /* sw appends here */
146 struct mwl8k_tx_desc
*txd
;
148 struct sk_buff
**skb
;
154 AMPDU_STREAM_IN_PROGRESS
,
158 struct mwl8k_ampdu_stream
{
159 struct ieee80211_sta
*sta
;
163 u8 txq_idx
; /* index of this stream in priv->txq */
167 struct ieee80211_hw
*hw
;
168 struct pci_dev
*pdev
;
171 struct mwl8k_device_info
*device_info
;
177 const struct firmware
*fw_helper
;
178 const struct firmware
*fw_ucode
;
180 /* hardware/firmware parameters */
182 struct rxd_ops
*rxd_ops
;
183 struct ieee80211_supported_band band_24
;
184 struct ieee80211_channel channels_24
[14];
185 struct ieee80211_rate rates_24
[14];
186 struct ieee80211_supported_band band_50
;
187 struct ieee80211_channel channels_50
[4];
188 struct ieee80211_rate rates_50
[9];
189 u32 ap_macids_supported
;
190 u32 sta_macids_supported
;
192 /* Ampdu stream information */
194 spinlock_t stream_lock
;
195 struct mwl8k_ampdu_stream ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
196 struct work_struct watchdog_ba_handle
;
198 /* firmware access */
199 struct mutex fw_mutex
;
200 struct task_struct
*fw_mutex_owner
;
201 struct task_struct
*hw_restart_owner
;
203 struct completion
*hostcmd_wait
;
205 /* lock held over TX and TX reap */
208 /* TX quiesce completion, protected by fw_mutex and tx_lock */
209 struct completion
*tx_wait
;
211 /* List of interfaces. */
213 struct list_head vif_list
;
215 /* power management status cookie from firmware */
217 dma_addr_t cookie_dma
;
224 * Running count of TX packets in flight, to avoid
225 * iterating over the transmit rings each time.
229 struct mwl8k_rx_queue rxq
[MWL8K_RX_QUEUES
];
230 struct mwl8k_tx_queue txq
[MWL8K_MAX_TX_QUEUES
];
231 u32 txq_offset
[MWL8K_MAX_TX_QUEUES
];
234 bool radio_short_preamble
;
235 bool sniffer_enabled
;
238 /* XXX need to convert this to handle multiple interfaces */
240 u8 capture_bssid
[ETH_ALEN
];
241 struct sk_buff
*beacon_skb
;
244 * This FJ worker has to be global as it is scheduled from the
245 * RX handler. At this point we don't know which interface it
246 * belongs to until the list of bssids waiting to complete join
249 struct work_struct finalize_join_worker
;
251 /* Tasklet to perform TX reclaim. */
252 struct tasklet_struct poll_tx_task
;
254 /* Tasklet to perform RX. */
255 struct tasklet_struct poll_rx_task
;
257 /* Most recently reported noise in dBm */
261 * preserve the queue configurations so they can be restored if/when
262 * the firmware image is swapped.
264 struct ieee80211_tx_queue_params wmm_params
[MWL8K_TX_WMM_QUEUES
];
266 /* To perform the task of reloading the firmware */
267 struct work_struct fw_reload
;
268 bool hw_restart_in_progress
;
270 /* async firmware loading state */
274 struct completion firmware_loading_complete
;
277 #define MAX_WEP_KEY_LEN 13
278 #define NUM_WEP_KEYS 4
280 /* Per interface specific private data */
282 struct list_head list
;
283 struct ieee80211_vif
*vif
;
285 /* Firmware macid for this vif. */
288 /* Non AMPDU sequence number assigned by driver. */
294 u8 key
[sizeof(struct ieee80211_key_conf
) + MAX_WEP_KEY_LEN
];
295 } wep_key_conf
[NUM_WEP_KEYS
];
300 /* A flag to indicate is HW crypto is enabled for this bssid */
301 bool is_hw_crypto_enabled
;
303 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
304 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
306 struct tx_traffic_info
{
311 #define MWL8K_MAX_TID 8
313 /* Index into station database. Returned by UPDATE_STADB. */
316 struct tx_traffic_info tx_stats
[MWL8K_MAX_TID
];
318 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
320 static const struct ieee80211_channel mwl8k_channels_24
[] = {
321 { .center_freq
= 2412, .hw_value
= 1, },
322 { .center_freq
= 2417, .hw_value
= 2, },
323 { .center_freq
= 2422, .hw_value
= 3, },
324 { .center_freq
= 2427, .hw_value
= 4, },
325 { .center_freq
= 2432, .hw_value
= 5, },
326 { .center_freq
= 2437, .hw_value
= 6, },
327 { .center_freq
= 2442, .hw_value
= 7, },
328 { .center_freq
= 2447, .hw_value
= 8, },
329 { .center_freq
= 2452, .hw_value
= 9, },
330 { .center_freq
= 2457, .hw_value
= 10, },
331 { .center_freq
= 2462, .hw_value
= 11, },
332 { .center_freq
= 2467, .hw_value
= 12, },
333 { .center_freq
= 2472, .hw_value
= 13, },
334 { .center_freq
= 2484, .hw_value
= 14, },
337 static const struct ieee80211_rate mwl8k_rates_24
[] = {
338 { .bitrate
= 10, .hw_value
= 2, },
339 { .bitrate
= 20, .hw_value
= 4, },
340 { .bitrate
= 55, .hw_value
= 11, },
341 { .bitrate
= 110, .hw_value
= 22, },
342 { .bitrate
= 220, .hw_value
= 44, },
343 { .bitrate
= 60, .hw_value
= 12, },
344 { .bitrate
= 90, .hw_value
= 18, },
345 { .bitrate
= 120, .hw_value
= 24, },
346 { .bitrate
= 180, .hw_value
= 36, },
347 { .bitrate
= 240, .hw_value
= 48, },
348 { .bitrate
= 360, .hw_value
= 72, },
349 { .bitrate
= 480, .hw_value
= 96, },
350 { .bitrate
= 540, .hw_value
= 108, },
351 { .bitrate
= 720, .hw_value
= 144, },
354 static const struct ieee80211_channel mwl8k_channels_50
[] = {
355 { .center_freq
= 5180, .hw_value
= 36, },
356 { .center_freq
= 5200, .hw_value
= 40, },
357 { .center_freq
= 5220, .hw_value
= 44, },
358 { .center_freq
= 5240, .hw_value
= 48, },
361 static const struct ieee80211_rate mwl8k_rates_50
[] = {
362 { .bitrate
= 60, .hw_value
= 12, },
363 { .bitrate
= 90, .hw_value
= 18, },
364 { .bitrate
= 120, .hw_value
= 24, },
365 { .bitrate
= 180, .hw_value
= 36, },
366 { .bitrate
= 240, .hw_value
= 48, },
367 { .bitrate
= 360, .hw_value
= 72, },
368 { .bitrate
= 480, .hw_value
= 96, },
369 { .bitrate
= 540, .hw_value
= 108, },
370 { .bitrate
= 720, .hw_value
= 144, },
373 /* Set or get info from Firmware */
374 #define MWL8K_CMD_GET 0x0000
375 #define MWL8K_CMD_SET 0x0001
376 #define MWL8K_CMD_SET_LIST 0x0002
378 /* Firmware command codes */
379 #define MWL8K_CMD_CODE_DNLD 0x0001
380 #define MWL8K_CMD_GET_HW_SPEC 0x0003
381 #define MWL8K_CMD_SET_HW_SPEC 0x0004
382 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
383 #define MWL8K_CMD_GET_STAT 0x0014
384 #define MWL8K_CMD_RADIO_CONTROL 0x001c
385 #define MWL8K_CMD_RF_TX_POWER 0x001e
386 #define MWL8K_CMD_TX_POWER 0x001f
387 #define MWL8K_CMD_RF_ANTENNA 0x0020
388 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
389 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
390 #define MWL8K_CMD_SET_POST_SCAN 0x0108
391 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
392 #define MWL8K_CMD_SET_AID 0x010d
393 #define MWL8K_CMD_SET_RATE 0x0110
394 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
395 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
396 #define MWL8K_CMD_SET_SLOT 0x0114
397 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
398 #define MWL8K_CMD_SET_WMM_MODE 0x0123
399 #define MWL8K_CMD_MIMO_CONFIG 0x0125
400 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
401 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
402 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
403 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
404 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
405 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
406 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
407 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
408 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
409 #define MWL8K_CMD_UPDATE_STADB 0x1123
410 #define MWL8K_CMD_BASTREAM 0x1125
412 static const char *mwl8k_cmd_name(__le16 cmd
, char *buf
, int bufsize
)
414 u16 command
= le16_to_cpu(cmd
);
416 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
417 snprintf(buf, bufsize, "%s", #x);\
420 switch (command
& ~0x8000) {
421 MWL8K_CMDNAME(CODE_DNLD
);
422 MWL8K_CMDNAME(GET_HW_SPEC
);
423 MWL8K_CMDNAME(SET_HW_SPEC
);
424 MWL8K_CMDNAME(MAC_MULTICAST_ADR
);
425 MWL8K_CMDNAME(GET_STAT
);
426 MWL8K_CMDNAME(RADIO_CONTROL
);
427 MWL8K_CMDNAME(RF_TX_POWER
);
428 MWL8K_CMDNAME(TX_POWER
);
429 MWL8K_CMDNAME(RF_ANTENNA
);
430 MWL8K_CMDNAME(SET_BEACON
);
431 MWL8K_CMDNAME(SET_PRE_SCAN
);
432 MWL8K_CMDNAME(SET_POST_SCAN
);
433 MWL8K_CMDNAME(SET_RF_CHANNEL
);
434 MWL8K_CMDNAME(SET_AID
);
435 MWL8K_CMDNAME(SET_RATE
);
436 MWL8K_CMDNAME(SET_FINALIZE_JOIN
);
437 MWL8K_CMDNAME(RTS_THRESHOLD
);
438 MWL8K_CMDNAME(SET_SLOT
);
439 MWL8K_CMDNAME(SET_EDCA_PARAMS
);
440 MWL8K_CMDNAME(SET_WMM_MODE
);
441 MWL8K_CMDNAME(MIMO_CONFIG
);
442 MWL8K_CMDNAME(USE_FIXED_RATE
);
443 MWL8K_CMDNAME(ENABLE_SNIFFER
);
444 MWL8K_CMDNAME(SET_MAC_ADDR
);
445 MWL8K_CMDNAME(SET_RATEADAPT_MODE
);
446 MWL8K_CMDNAME(BSS_START
);
447 MWL8K_CMDNAME(SET_NEW_STN
);
448 MWL8K_CMDNAME(UPDATE_ENCRYPTION
);
449 MWL8K_CMDNAME(UPDATE_STADB
);
450 MWL8K_CMDNAME(BASTREAM
);
451 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP
);
453 snprintf(buf
, bufsize
, "0x%x", cmd
);
460 /* Hardware and firmware reset */
461 static void mwl8k_hw_reset(struct mwl8k_priv
*priv
)
463 iowrite32(MWL8K_H2A_INT_RESET
,
464 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
465 iowrite32(MWL8K_H2A_INT_RESET
,
466 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
470 /* Release fw image */
471 static void mwl8k_release_fw(const struct firmware
**fw
)
475 release_firmware(*fw
);
479 static void mwl8k_release_firmware(struct mwl8k_priv
*priv
)
481 mwl8k_release_fw(&priv
->fw_ucode
);
482 mwl8k_release_fw(&priv
->fw_helper
);
485 /* states for asynchronous f/w loading */
486 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
);
489 FW_STATE_LOADING_PREF
,
490 FW_STATE_LOADING_ALT
,
494 /* Request fw image */
495 static int mwl8k_request_fw(struct mwl8k_priv
*priv
,
496 const char *fname
, const struct firmware
**fw
,
499 /* release current image */
501 mwl8k_release_fw(fw
);
504 return request_firmware_nowait(THIS_MODULE
, 1, fname
,
505 &priv
->pdev
->dev
, GFP_KERNEL
,
506 priv
, mwl8k_fw_state_machine
);
508 return request_firmware(fw
, fname
, &priv
->pdev
->dev
);
511 static int mwl8k_request_firmware(struct mwl8k_priv
*priv
, char *fw_image
,
514 struct mwl8k_device_info
*di
= priv
->device_info
;
517 if (di
->helper_image
!= NULL
) {
519 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
520 &priv
->fw_helper
, true);
522 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
523 &priv
->fw_helper
, false);
525 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
526 pci_name(priv
->pdev
), di
->helper_image
);
534 * if we get here, no helper image is needed. Skip the
535 * FW_STATE_INIT state.
537 priv
->fw_state
= FW_STATE_LOADING_PREF
;
538 rc
= mwl8k_request_fw(priv
, fw_image
,
542 rc
= mwl8k_request_fw(priv
, fw_image
,
543 &priv
->fw_ucode
, false);
545 printk(KERN_ERR
"%s: Error requesting firmware file %s\n",
546 pci_name(priv
->pdev
), fw_image
);
547 mwl8k_release_fw(&priv
->fw_helper
);
554 struct mwl8k_cmd_pkt
{
567 mwl8k_send_fw_load_cmd(struct mwl8k_priv
*priv
, void *data
, int length
)
569 void __iomem
*regs
= priv
->regs
;
573 dma_addr
= pci_map_single(priv
->pdev
, data
, length
, PCI_DMA_TODEVICE
);
574 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
577 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
578 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
579 iowrite32(MWL8K_H2A_INT_DOORBELL
,
580 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
581 iowrite32(MWL8K_H2A_INT_DUMMY
,
582 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
588 int_code
= ioread32(regs
+ MWL8K_HIU_INT_CODE
);
589 if (int_code
== MWL8K_INT_CODE_CMD_FINISHED
) {
590 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
598 pci_unmap_single(priv
->pdev
, dma_addr
, length
, PCI_DMA_TODEVICE
);
600 return loops
? 0 : -ETIMEDOUT
;
603 static int mwl8k_load_fw_image(struct mwl8k_priv
*priv
,
604 const u8
*data
, size_t length
)
606 struct mwl8k_cmd_pkt
*cmd
;
610 cmd
= kmalloc(sizeof(*cmd
) + 256, GFP_KERNEL
);
614 cmd
->code
= cpu_to_le16(MWL8K_CMD_CODE_DNLD
);
621 int block_size
= length
> 256 ? 256 : length
;
623 memcpy(cmd
->payload
, data
+ done
, block_size
);
624 cmd
->length
= cpu_to_le16(block_size
);
626 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
,
627 sizeof(*cmd
) + block_size
);
632 length
-= block_size
;
637 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
, sizeof(*cmd
));
645 static int mwl8k_feed_fw_image(struct mwl8k_priv
*priv
,
646 const u8
*data
, size_t length
)
648 unsigned char *buffer
;
649 int may_continue
, rc
= 0;
650 u32 done
, prev_block_size
;
652 buffer
= kmalloc(1024, GFP_KERNEL
);
659 while (may_continue
> 0) {
662 block_size
= ioread32(priv
->regs
+ MWL8K_HIU_SCRATCH
);
663 if (block_size
& 1) {
667 done
+= prev_block_size
;
668 length
-= prev_block_size
;
671 if (block_size
> 1024 || block_size
> length
) {
681 if (block_size
== 0) {
688 prev_block_size
= block_size
;
689 memcpy(buffer
, data
+ done
, block_size
);
691 rc
= mwl8k_send_fw_load_cmd(priv
, buffer
, block_size
);
696 if (!rc
&& length
!= 0)
704 static int mwl8k_load_firmware(struct ieee80211_hw
*hw
)
706 struct mwl8k_priv
*priv
= hw
->priv
;
707 const struct firmware
*fw
= priv
->fw_ucode
;
711 if (!memcmp(fw
->data
, "\x01\x00\x00\x00", 4)) {
712 const struct firmware
*helper
= priv
->fw_helper
;
714 if (helper
== NULL
) {
715 printk(KERN_ERR
"%s: helper image needed but none "
716 "given\n", pci_name(priv
->pdev
));
720 rc
= mwl8k_load_fw_image(priv
, helper
->data
, helper
->size
);
722 printk(KERN_ERR
"%s: unable to load firmware "
723 "helper image\n", pci_name(priv
->pdev
));
728 rc
= mwl8k_feed_fw_image(priv
, fw
->data
, fw
->size
);
730 rc
= mwl8k_load_fw_image(priv
, fw
->data
, fw
->size
);
734 printk(KERN_ERR
"%s: unable to load firmware image\n",
735 pci_name(priv
->pdev
));
739 iowrite32(MWL8K_MODE_STA
, priv
->regs
+ MWL8K_HIU_GEN_PTR
);
745 ready_code
= ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
746 if (ready_code
== MWL8K_FWAP_READY
) {
749 } else if (ready_code
== MWL8K_FWSTA_READY
) {
758 return loops
? 0 : -ETIMEDOUT
;
762 /* DMA header used by firmware and hardware. */
763 struct mwl8k_dma_data
{
765 struct ieee80211_hdr wh
;
769 /* Routines to add/remove DMA header from skb. */
770 static inline void mwl8k_remove_dma_header(struct sk_buff
*skb
, __le16 qos
)
772 struct mwl8k_dma_data
*tr
;
775 tr
= (struct mwl8k_dma_data
*)skb
->data
;
776 hdrlen
= ieee80211_hdrlen(tr
->wh
.frame_control
);
778 if (hdrlen
!= sizeof(tr
->wh
)) {
779 if (ieee80211_is_data_qos(tr
->wh
.frame_control
)) {
780 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
- 2);
781 *((__le16
*)(tr
->data
- 2)) = qos
;
783 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
);
787 if (hdrlen
!= sizeof(*tr
))
788 skb_pull(skb
, sizeof(*tr
) - hdrlen
);
791 #define REDUCED_TX_HEADROOM 8
794 mwl8k_add_dma_header(struct mwl8k_priv
*priv
, struct sk_buff
*skb
,
795 int head_pad
, int tail_pad
)
797 struct ieee80211_hdr
*wh
;
800 struct mwl8k_dma_data
*tr
;
803 * Add a firmware DMA header; the firmware requires that we
804 * present a 2-byte payload length followed by a 4-address
805 * header (without QoS field), followed (optionally) by any
806 * WEP/ExtIV header (but only filled in for CCMP).
808 wh
= (struct ieee80211_hdr
*)skb
->data
;
810 hdrlen
= ieee80211_hdrlen(wh
->frame_control
);
813 * Check if skb_resize is required because of
814 * tx_headroom adjustment.
816 if (priv
->ap_fw
&& (hdrlen
< (sizeof(struct ieee80211_cts
)
817 + REDUCED_TX_HEADROOM
))) {
818 if (pskb_expand_head(skb
, REDUCED_TX_HEADROOM
, 0, GFP_ATOMIC
)) {
820 wiphy_err(priv
->hw
->wiphy
,
821 "Failed to reallocate TX buffer\n");
824 skb
->truesize
+= REDUCED_TX_HEADROOM
;
827 reqd_hdrlen
= sizeof(*tr
) + head_pad
;
829 if (hdrlen
!= reqd_hdrlen
)
830 skb_push(skb
, reqd_hdrlen
- hdrlen
);
832 if (ieee80211_is_data_qos(wh
->frame_control
))
833 hdrlen
-= IEEE80211_QOS_CTL_LEN
;
835 tr
= (struct mwl8k_dma_data
*)skb
->data
;
837 memmove(&tr
->wh
, wh
, hdrlen
);
838 if (hdrlen
!= sizeof(tr
->wh
))
839 memset(((void *)&tr
->wh
) + hdrlen
, 0, sizeof(tr
->wh
) - hdrlen
);
842 * Firmware length is the length of the fully formed "802.11
843 * payload". That is, everything except for the 802.11 header.
844 * This includes all crypto material including the MIC.
846 tr
->fwlen
= cpu_to_le16(skb
->len
- sizeof(*tr
) + tail_pad
);
849 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv
*priv
,
852 struct ieee80211_hdr
*wh
;
853 struct ieee80211_tx_info
*tx_info
;
854 struct ieee80211_key_conf
*key_conf
;
858 wh
= (struct ieee80211_hdr
*)skb
->data
;
860 tx_info
= IEEE80211_SKB_CB(skb
);
863 if (ieee80211_is_data(wh
->frame_control
))
864 key_conf
= tx_info
->control
.hw_key
;
867 * Make sure the packet header is in the DMA header format (4-address
868 * without QoS), and add head & tail padding when HW crypto is enabled.
870 * We have the following trailer padding requirements:
871 * - WEP: 4 trailer bytes (ICV)
872 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
873 * - CCMP: 8 trailer bytes (MIC)
876 if (key_conf
!= NULL
) {
877 head_pad
= key_conf
->iv_len
;
878 switch (key_conf
->cipher
) {
879 case WLAN_CIPHER_SUITE_WEP40
:
880 case WLAN_CIPHER_SUITE_WEP104
:
883 case WLAN_CIPHER_SUITE_TKIP
:
886 case WLAN_CIPHER_SUITE_CCMP
:
891 mwl8k_add_dma_header(priv
, skb
, head_pad
, data_pad
);
895 * Packet reception for 88w8366 AP firmware.
897 struct mwl8k_rxd_8366_ap
{
901 __le32 pkt_phys_addr
;
902 __le32 next_rxd_phys_addr
;
906 __le32 hw_noise_floor_info
;
915 #define MWL8K_8366_AP_RATE_INFO_MCS_FORMAT 0x80
916 #define MWL8K_8366_AP_RATE_INFO_40MHZ 0x40
917 #define MWL8K_8366_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
919 #define MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST 0x80
921 /* 8366 AP rx_status bits */
922 #define MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
923 #define MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
924 #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
925 #define MWL8K_8366_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
926 #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
928 static void mwl8k_rxd_8366_ap_init(void *_rxd
, dma_addr_t next_dma_addr
)
930 struct mwl8k_rxd_8366_ap
*rxd
= _rxd
;
932 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
933 rxd
->rx_ctrl
= MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST
;
936 static void mwl8k_rxd_8366_ap_refill(void *_rxd
, dma_addr_t addr
, int len
)
938 struct mwl8k_rxd_8366_ap
*rxd
= _rxd
;
940 rxd
->pkt_len
= cpu_to_le16(len
);
941 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
947 mwl8k_rxd_8366_ap_process(void *_rxd
, struct ieee80211_rx_status
*status
,
948 __le16
*qos
, s8
*noise
)
950 struct mwl8k_rxd_8366_ap
*rxd
= _rxd
;
952 if (!(rxd
->rx_ctrl
& MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST
))
956 memset(status
, 0, sizeof(*status
));
958 status
->signal
= -rxd
->rssi
;
959 *noise
= -rxd
->noise_floor
;
961 if (rxd
->rate
& MWL8K_8366_AP_RATE_INFO_MCS_FORMAT
) {
962 status
->flag
|= RX_FLAG_HT
;
963 if (rxd
->rate
& MWL8K_8366_AP_RATE_INFO_40MHZ
)
964 status
->flag
|= RX_FLAG_40MHZ
;
965 status
->rate_idx
= MWL8K_8366_AP_RATE_INFO_RATEID(rxd
->rate
);
969 for (i
= 0; i
< ARRAY_SIZE(mwl8k_rates_24
); i
++) {
970 if (mwl8k_rates_24
[i
].hw_value
== rxd
->rate
) {
971 status
->rate_idx
= i
;
977 if (rxd
->channel
> 14) {
978 status
->band
= IEEE80211_BAND_5GHZ
;
979 if (!(status
->flag
& RX_FLAG_HT
))
980 status
->rate_idx
-= 5;
982 status
->band
= IEEE80211_BAND_2GHZ
;
984 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
987 *qos
= rxd
->qos_control
;
989 if ((rxd
->rx_status
!= MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR
) &&
990 (rxd
->rx_status
& MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK
) &&
991 (rxd
->rx_status
& MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR
))
992 status
->flag
|= RX_FLAG_MMIC_ERROR
;
994 return le16_to_cpu(rxd
->pkt_len
);
997 static struct rxd_ops rxd_8366_ap_ops
= {
998 .rxd_size
= sizeof(struct mwl8k_rxd_8366_ap
),
999 .rxd_init
= mwl8k_rxd_8366_ap_init
,
1000 .rxd_refill
= mwl8k_rxd_8366_ap_refill
,
1001 .rxd_process
= mwl8k_rxd_8366_ap_process
,
1005 * Packet reception for STA firmware.
1007 struct mwl8k_rxd_sta
{
1011 __le32 pkt_phys_addr
;
1012 __le32 next_rxd_phys_addr
;
1024 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1025 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1026 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1027 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1028 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1029 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1031 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1032 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1033 /* ICV=0 or MIC=1 */
1034 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1035 /* Key is uploaded only in failure case */
1036 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1038 static void mwl8k_rxd_sta_init(void *_rxd
, dma_addr_t next_dma_addr
)
1040 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1042 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
1043 rxd
->rx_ctrl
= MWL8K_STA_RX_CTRL_OWNED_BY_HOST
;
1046 static void mwl8k_rxd_sta_refill(void *_rxd
, dma_addr_t addr
, int len
)
1048 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1050 rxd
->pkt_len
= cpu_to_le16(len
);
1051 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
1057 mwl8k_rxd_sta_process(void *_rxd
, struct ieee80211_rx_status
*status
,
1058 __le16
*qos
, s8
*noise
)
1060 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1063 if (!(rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_OWNED_BY_HOST
))
1067 rate_info
= le16_to_cpu(rxd
->rate_info
);
1069 memset(status
, 0, sizeof(*status
));
1071 status
->signal
= -rxd
->rssi
;
1072 *noise
= -rxd
->noise_level
;
1073 status
->antenna
= MWL8K_STA_RATE_INFO_ANTSELECT(rate_info
);
1074 status
->rate_idx
= MWL8K_STA_RATE_INFO_RATEID(rate_info
);
1076 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTPRE
)
1077 status
->flag
|= RX_FLAG_SHORTPRE
;
1078 if (rate_info
& MWL8K_STA_RATE_INFO_40MHZ
)
1079 status
->flag
|= RX_FLAG_40MHZ
;
1080 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTGI
)
1081 status
->flag
|= RX_FLAG_SHORT_GI
;
1082 if (rate_info
& MWL8K_STA_RATE_INFO_MCS_FORMAT
)
1083 status
->flag
|= RX_FLAG_HT
;
1085 if (rxd
->channel
> 14) {
1086 status
->band
= IEEE80211_BAND_5GHZ
;
1087 if (!(status
->flag
& RX_FLAG_HT
))
1088 status
->rate_idx
-= 5;
1090 status
->band
= IEEE80211_BAND_2GHZ
;
1092 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
1095 *qos
= rxd
->qos_control
;
1096 if ((rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DECRYPT_ERROR
) &&
1097 (rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DEC_ERR_TYPE
))
1098 status
->flag
|= RX_FLAG_MMIC_ERROR
;
1100 return le16_to_cpu(rxd
->pkt_len
);
1103 static struct rxd_ops rxd_sta_ops
= {
1104 .rxd_size
= sizeof(struct mwl8k_rxd_sta
),
1105 .rxd_init
= mwl8k_rxd_sta_init
,
1106 .rxd_refill
= mwl8k_rxd_sta_refill
,
1107 .rxd_process
= mwl8k_rxd_sta_process
,
1111 #define MWL8K_RX_DESCS 256
1112 #define MWL8K_RX_MAXSZ 3800
1114 static int mwl8k_rxq_init(struct ieee80211_hw
*hw
, int index
)
1116 struct mwl8k_priv
*priv
= hw
->priv
;
1117 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1125 size
= MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
;
1127 rxq
->rxd
= pci_alloc_consistent(priv
->pdev
, size
, &rxq
->rxd_dma
);
1128 if (rxq
->rxd
== NULL
) {
1129 wiphy_err(hw
->wiphy
, "failed to alloc RX descriptors\n");
1132 memset(rxq
->rxd
, 0, size
);
1134 rxq
->buf
= kcalloc(MWL8K_RX_DESCS
, sizeof(*rxq
->buf
), GFP_KERNEL
);
1135 if (rxq
->buf
== NULL
) {
1136 wiphy_err(hw
->wiphy
, "failed to alloc RX skbuff list\n");
1137 pci_free_consistent(priv
->pdev
, size
, rxq
->rxd
, rxq
->rxd_dma
);
1141 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1145 dma_addr_t next_dma_addr
;
1147 desc_size
= priv
->rxd_ops
->rxd_size
;
1148 rxd
= rxq
->rxd
+ (i
* priv
->rxd_ops
->rxd_size
);
1151 if (nexti
== MWL8K_RX_DESCS
)
1153 next_dma_addr
= rxq
->rxd_dma
+ (nexti
* desc_size
);
1155 priv
->rxd_ops
->rxd_init(rxd
, next_dma_addr
);
1161 static int rxq_refill(struct ieee80211_hw
*hw
, int index
, int limit
)
1163 struct mwl8k_priv
*priv
= hw
->priv
;
1164 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1168 while (rxq
->rxd_count
< MWL8K_RX_DESCS
&& limit
--) {
1169 struct sk_buff
*skb
;
1174 skb
= dev_alloc_skb(MWL8K_RX_MAXSZ
);
1178 addr
= pci_map_single(priv
->pdev
, skb
->data
,
1179 MWL8K_RX_MAXSZ
, DMA_FROM_DEVICE
);
1183 if (rxq
->tail
== MWL8K_RX_DESCS
)
1185 rxq
->buf
[rx
].skb
= skb
;
1186 dma_unmap_addr_set(&rxq
->buf
[rx
], dma
, addr
);
1188 rxd
= rxq
->rxd
+ (rx
* priv
->rxd_ops
->rxd_size
);
1189 priv
->rxd_ops
->rxd_refill(rxd
, addr
, MWL8K_RX_MAXSZ
);
1197 /* Must be called only when the card's reception is completely halted */
1198 static void mwl8k_rxq_deinit(struct ieee80211_hw
*hw
, int index
)
1200 struct mwl8k_priv
*priv
= hw
->priv
;
1201 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1204 if (rxq
->rxd
== NULL
)
1207 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1208 if (rxq
->buf
[i
].skb
!= NULL
) {
1209 pci_unmap_single(priv
->pdev
,
1210 dma_unmap_addr(&rxq
->buf
[i
], dma
),
1211 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1212 dma_unmap_addr_set(&rxq
->buf
[i
], dma
, 0);
1214 kfree_skb(rxq
->buf
[i
].skb
);
1215 rxq
->buf
[i
].skb
= NULL
;
1222 pci_free_consistent(priv
->pdev
,
1223 MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
,
1224 rxq
->rxd
, rxq
->rxd_dma
);
1230 * Scan a list of BSSIDs to process for finalize join.
1231 * Allows for extension to process multiple BSSIDs.
1234 mwl8k_capture_bssid(struct mwl8k_priv
*priv
, struct ieee80211_hdr
*wh
)
1236 return priv
->capture_beacon
&&
1237 ieee80211_is_beacon(wh
->frame_control
) &&
1238 ether_addr_equal(wh
->addr3
, priv
->capture_bssid
);
1241 static inline void mwl8k_save_beacon(struct ieee80211_hw
*hw
,
1242 struct sk_buff
*skb
)
1244 struct mwl8k_priv
*priv
= hw
->priv
;
1246 priv
->capture_beacon
= false;
1247 memset(priv
->capture_bssid
, 0, ETH_ALEN
);
1250 * Use GFP_ATOMIC as rxq_process is called from
1251 * the primary interrupt handler, memory allocation call
1254 priv
->beacon_skb
= skb_copy(skb
, GFP_ATOMIC
);
1255 if (priv
->beacon_skb
!= NULL
)
1256 ieee80211_queue_work(hw
, &priv
->finalize_join_worker
);
1259 static inline struct mwl8k_vif
*mwl8k_find_vif_bss(struct list_head
*vif_list
,
1262 struct mwl8k_vif
*mwl8k_vif
;
1264 list_for_each_entry(mwl8k_vif
,
1266 if (memcmp(bssid
, mwl8k_vif
->bssid
,
1274 static int rxq_process(struct ieee80211_hw
*hw
, int index
, int limit
)
1276 struct mwl8k_priv
*priv
= hw
->priv
;
1277 struct mwl8k_vif
*mwl8k_vif
= NULL
;
1278 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1282 while (rxq
->rxd_count
&& limit
--) {
1283 struct sk_buff
*skb
;
1286 struct ieee80211_rx_status status
;
1287 struct ieee80211_hdr
*wh
;
1290 skb
= rxq
->buf
[rxq
->head
].skb
;
1294 rxd
= rxq
->rxd
+ (rxq
->head
* priv
->rxd_ops
->rxd_size
);
1296 pkt_len
= priv
->rxd_ops
->rxd_process(rxd
, &status
, &qos
,
1301 rxq
->buf
[rxq
->head
].skb
= NULL
;
1303 pci_unmap_single(priv
->pdev
,
1304 dma_unmap_addr(&rxq
->buf
[rxq
->head
], dma
),
1305 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1306 dma_unmap_addr_set(&rxq
->buf
[rxq
->head
], dma
, 0);
1309 if (rxq
->head
== MWL8K_RX_DESCS
)
1314 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1317 * Check for a pending join operation. Save a
1318 * copy of the beacon and schedule a tasklet to
1319 * send a FINALIZE_JOIN command to the firmware.
1321 if (mwl8k_capture_bssid(priv
, (void *)skb
->data
))
1322 mwl8k_save_beacon(hw
, skb
);
1324 if (ieee80211_has_protected(wh
->frame_control
)) {
1326 /* Check if hw crypto has been enabled for
1327 * this bss. If yes, set the status flags
1330 mwl8k_vif
= mwl8k_find_vif_bss(&priv
->vif_list
,
1333 if (mwl8k_vif
!= NULL
&&
1334 mwl8k_vif
->is_hw_crypto_enabled
) {
1336 * When MMIC ERROR is encountered
1337 * by the firmware, payload is
1338 * dropped and only 32 bytes of
1339 * mwl8k Firmware header is sent
1342 * We need to add four bytes of
1343 * key information. In it
1344 * MAC80211 expects keyidx set to
1345 * 0 for triggering Counter
1346 * Measure of MMIC failure.
1348 if (status
.flag
& RX_FLAG_MMIC_ERROR
) {
1349 struct mwl8k_dma_data
*tr
;
1350 tr
= (struct mwl8k_dma_data
*)skb
->data
;
1351 memset((void *)&(tr
->data
), 0, 4);
1355 if (!ieee80211_is_auth(wh
->frame_control
))
1356 status
.flag
|= RX_FLAG_IV_STRIPPED
|
1358 RX_FLAG_MMIC_STRIPPED
;
1362 skb_put(skb
, pkt_len
);
1363 mwl8k_remove_dma_header(skb
, qos
);
1364 memcpy(IEEE80211_SKB_RXCB(skb
), &status
, sizeof(status
));
1365 ieee80211_rx_irqsafe(hw
, skb
);
1375 * Packet transmission.
1378 #define MWL8K_TXD_STATUS_OK 0x00000001
1379 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1380 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1381 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1382 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1384 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1385 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1386 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1387 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1388 #define MWL8K_QOS_EOSP 0x0010
1390 struct mwl8k_tx_desc
{
1395 __le32 pkt_phys_addr
;
1397 __u8 dest_MAC_addr
[ETH_ALEN
];
1398 __le32 next_txd_phys_addr
;
1405 #define MWL8K_TX_DESCS 128
1407 static int mwl8k_txq_init(struct ieee80211_hw
*hw
, int index
)
1409 struct mwl8k_priv
*priv
= hw
->priv
;
1410 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1418 size
= MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
);
1420 txq
->txd
= pci_alloc_consistent(priv
->pdev
, size
, &txq
->txd_dma
);
1421 if (txq
->txd
== NULL
) {
1422 wiphy_err(hw
->wiphy
, "failed to alloc TX descriptors\n");
1425 memset(txq
->txd
, 0, size
);
1427 txq
->skb
= kcalloc(MWL8K_TX_DESCS
, sizeof(*txq
->skb
), GFP_KERNEL
);
1428 if (txq
->skb
== NULL
) {
1429 wiphy_err(hw
->wiphy
, "failed to alloc TX skbuff list\n");
1430 pci_free_consistent(priv
->pdev
, size
, txq
->txd
, txq
->txd_dma
);
1434 for (i
= 0; i
< MWL8K_TX_DESCS
; i
++) {
1435 struct mwl8k_tx_desc
*tx_desc
;
1438 tx_desc
= txq
->txd
+ i
;
1439 nexti
= (i
+ 1) % MWL8K_TX_DESCS
;
1441 tx_desc
->status
= 0;
1442 tx_desc
->next_txd_phys_addr
=
1443 cpu_to_le32(txq
->txd_dma
+ nexti
* sizeof(*tx_desc
));
1449 static inline void mwl8k_tx_start(struct mwl8k_priv
*priv
)
1451 iowrite32(MWL8K_H2A_INT_PPA_READY
,
1452 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1453 iowrite32(MWL8K_H2A_INT_DUMMY
,
1454 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1455 ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
1458 static void mwl8k_dump_tx_rings(struct ieee80211_hw
*hw
)
1460 struct mwl8k_priv
*priv
= hw
->priv
;
1463 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
1464 struct mwl8k_tx_queue
*txq
= priv
->txq
+ i
;
1470 for (desc
= 0; desc
< MWL8K_TX_DESCS
; desc
++) {
1471 struct mwl8k_tx_desc
*tx_desc
= txq
->txd
+ desc
;
1474 status
= le32_to_cpu(tx_desc
->status
);
1475 if (status
& MWL8K_TXD_STATUS_FW_OWNED
)
1480 if (tx_desc
->pkt_len
== 0)
1484 wiphy_err(hw
->wiphy
,
1485 "txq[%d] len=%d head=%d tail=%d "
1486 "fw_owned=%d drv_owned=%d unused=%d\n",
1488 txq
->len
, txq
->head
, txq
->tail
,
1489 fw_owned
, drv_owned
, unused
);
1494 * Must be called with priv->fw_mutex held and tx queues stopped.
1496 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1498 static int mwl8k_tx_wait_empty(struct ieee80211_hw
*hw
)
1500 struct mwl8k_priv
*priv
= hw
->priv
;
1501 DECLARE_COMPLETION_ONSTACK(tx_wait
);
1507 /* Since fw restart is in progress, allow only the firmware
1508 * commands from the restart code and block the other
1509 * commands since they are going to fail in any case since
1510 * the firmware has crashed
1512 if (priv
->hw_restart_in_progress
) {
1513 if (priv
->hw_restart_owner
== current
)
1520 * The TX queues are stopped at this point, so this test
1521 * doesn't need to take ->tx_lock.
1523 if (!priv
->pending_tx_pkts
)
1529 spin_lock_bh(&priv
->tx_lock
);
1530 priv
->tx_wait
= &tx_wait
;
1533 unsigned long timeout
;
1535 oldcount
= priv
->pending_tx_pkts
;
1537 spin_unlock_bh(&priv
->tx_lock
);
1538 timeout
= wait_for_completion_timeout(&tx_wait
,
1539 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS
));
1540 spin_lock_bh(&priv
->tx_lock
);
1543 WARN_ON(priv
->pending_tx_pkts
);
1545 wiphy_notice(hw
->wiphy
, "tx rings drained\n");
1549 if (priv
->pending_tx_pkts
< oldcount
) {
1550 wiphy_notice(hw
->wiphy
,
1551 "waiting for tx rings to drain (%d -> %d pkts)\n",
1552 oldcount
, priv
->pending_tx_pkts
);
1557 priv
->tx_wait
= NULL
;
1559 wiphy_err(hw
->wiphy
, "tx rings stuck for %d ms\n",
1560 MWL8K_TX_WAIT_TIMEOUT_MS
);
1561 mwl8k_dump_tx_rings(hw
);
1562 priv
->hw_restart_in_progress
= true;
1563 ieee80211_queue_work(hw
, &priv
->fw_reload
);
1567 spin_unlock_bh(&priv
->tx_lock
);
1572 #define MWL8K_TXD_SUCCESS(status) \
1573 ((status) & (MWL8K_TXD_STATUS_OK | \
1574 MWL8K_TXD_STATUS_OK_RETRY | \
1575 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1577 static int mwl8k_tid_queue_mapping(u8 tid
)
1584 return IEEE80211_AC_BE
;
1588 return IEEE80211_AC_BK
;
1592 return IEEE80211_AC_VI
;
1596 return IEEE80211_AC_VO
;
1604 /* The firmware will fill in the rate information
1605 * for each packet that gets queued in the hardware
1606 * and these macros will interpret that info.
1609 #define RI_FORMAT(a) (a & 0x0001)
1610 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1613 mwl8k_txq_reclaim(struct ieee80211_hw
*hw
, int index
, int limit
, int force
)
1615 struct mwl8k_priv
*priv
= hw
->priv
;
1616 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1620 while (txq
->len
> 0 && limit
--) {
1622 struct mwl8k_tx_desc
*tx_desc
;
1625 struct sk_buff
*skb
;
1626 struct ieee80211_tx_info
*info
;
1628 struct ieee80211_sta
*sta
;
1629 struct mwl8k_sta
*sta_info
= NULL
;
1631 struct ieee80211_hdr
*wh
;
1634 tx_desc
= txq
->txd
+ tx
;
1636 status
= le32_to_cpu(tx_desc
->status
);
1638 if (status
& MWL8K_TXD_STATUS_FW_OWNED
) {
1642 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
);
1645 txq
->head
= (tx
+ 1) % MWL8K_TX_DESCS
;
1646 BUG_ON(txq
->len
== 0);
1648 priv
->pending_tx_pkts
--;
1650 addr
= le32_to_cpu(tx_desc
->pkt_phys_addr
);
1651 size
= le16_to_cpu(tx_desc
->pkt_len
);
1653 txq
->skb
[tx
] = NULL
;
1655 BUG_ON(skb
== NULL
);
1656 pci_unmap_single(priv
->pdev
, addr
, size
, PCI_DMA_TODEVICE
);
1658 mwl8k_remove_dma_header(skb
, tx_desc
->qos_control
);
1660 wh
= (struct ieee80211_hdr
*) skb
->data
;
1662 /* Mark descriptor as unused */
1663 tx_desc
->pkt_phys_addr
= 0;
1664 tx_desc
->pkt_len
= 0;
1666 info
= IEEE80211_SKB_CB(skb
);
1667 if (ieee80211_is_data(wh
->frame_control
)) {
1669 sta
= ieee80211_find_sta_by_ifaddr(hw
, wh
->addr1
,
1672 sta_info
= MWL8K_STA(sta
);
1673 BUG_ON(sta_info
== NULL
);
1674 rate_info
= le16_to_cpu(tx_desc
->rate_info
);
1675 /* If rate is < 6.5 Mpbs for an ht station
1676 * do not form an ampdu. If the station is a
1677 * legacy station (format = 0), do not form an
1680 if (RI_RATE_ID_MCS(rate_info
) < 1 ||
1681 RI_FORMAT(rate_info
) == 0) {
1682 sta_info
->is_ampdu_allowed
= false;
1684 sta_info
->is_ampdu_allowed
= true;
1690 ieee80211_tx_info_clear_status(info
);
1692 /* Rate control is happening in the firmware.
1693 * Ensure no tx rate is being reported.
1695 info
->status
.rates
[0].idx
= -1;
1696 info
->status
.rates
[0].count
= 1;
1698 if (MWL8K_TXD_SUCCESS(status
))
1699 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1701 ieee80211_tx_status_irqsafe(hw
, skb
);
1709 /* must be called only when the card's transmit is completely halted */
1710 static void mwl8k_txq_deinit(struct ieee80211_hw
*hw
, int index
)
1712 struct mwl8k_priv
*priv
= hw
->priv
;
1713 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1715 if (txq
->txd
== NULL
)
1718 mwl8k_txq_reclaim(hw
, index
, INT_MAX
, 1);
1723 pci_free_consistent(priv
->pdev
,
1724 MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
),
1725 txq
->txd
, txq
->txd_dma
);
1729 /* caller must hold priv->stream_lock when calling the stream functions */
1730 static struct mwl8k_ampdu_stream
*
1731 mwl8k_add_stream(struct ieee80211_hw
*hw
, struct ieee80211_sta
*sta
, u8 tid
)
1733 struct mwl8k_ampdu_stream
*stream
;
1734 struct mwl8k_priv
*priv
= hw
->priv
;
1737 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++) {
1738 stream
= &priv
->ampdu
[i
];
1739 if (stream
->state
== AMPDU_NO_STREAM
) {
1741 stream
->state
= AMPDU_STREAM_NEW
;
1744 stream
->txq_idx
= MWL8K_TX_WMM_QUEUES
+ i
;
1745 wiphy_debug(hw
->wiphy
, "Added a new stream for %pM %d",
1754 mwl8k_start_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1758 /* if the stream has already been started, don't start it again */
1759 if (stream
->state
!= AMPDU_STREAM_NEW
)
1761 ret
= ieee80211_start_tx_ba_session(stream
->sta
, stream
->tid
, 0);
1763 wiphy_debug(hw
->wiphy
, "Failed to start stream for %pM %d: "
1764 "%d\n", stream
->sta
->addr
, stream
->tid
, ret
);
1766 wiphy_debug(hw
->wiphy
, "Started stream for %pM %d\n",
1767 stream
->sta
->addr
, stream
->tid
);
1772 mwl8k_remove_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1774 wiphy_debug(hw
->wiphy
, "Remove stream for %pM %d\n", stream
->sta
->addr
,
1776 memset(stream
, 0, sizeof(*stream
));
1779 static struct mwl8k_ampdu_stream
*
1780 mwl8k_lookup_stream(struct ieee80211_hw
*hw
, u8
*addr
, u8 tid
)
1782 struct mwl8k_priv
*priv
= hw
->priv
;
1785 for (i
= 0 ; i
< priv
->num_ampdu_queues
; i
++) {
1786 struct mwl8k_ampdu_stream
*stream
;
1787 stream
= &priv
->ampdu
[i
];
1788 if (stream
->state
== AMPDU_NO_STREAM
)
1790 if (!memcmp(stream
->sta
->addr
, addr
, ETH_ALEN
) &&
1797 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1798 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta
*sta
, u8 tid
)
1800 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1801 struct tx_traffic_info
*tx_stats
;
1803 BUG_ON(tid
>= MWL8K_MAX_TID
);
1804 tx_stats
= &sta_info
->tx_stats
[tid
];
1806 return sta_info
->is_ampdu_allowed
&&
1807 tx_stats
->pkts
> MWL8K_AMPDU_PACKET_THRESHOLD
;
1810 static inline void mwl8k_tx_count_packet(struct ieee80211_sta
*sta
, u8 tid
)
1812 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1813 struct tx_traffic_info
*tx_stats
;
1815 BUG_ON(tid
>= MWL8K_MAX_TID
);
1816 tx_stats
= &sta_info
->tx_stats
[tid
];
1818 if (tx_stats
->start_time
== 0)
1819 tx_stats
->start_time
= jiffies
;
1821 /* reset the packet count after each second elapses. If the number of
1822 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1823 * an ampdu stream to be started.
1825 if (jiffies
- tx_stats
->start_time
> HZ
) {
1827 tx_stats
->start_time
= 0;
1833 mwl8k_txq_xmit(struct ieee80211_hw
*hw
,
1835 struct ieee80211_sta
*sta
,
1836 struct sk_buff
*skb
)
1838 struct mwl8k_priv
*priv
= hw
->priv
;
1839 struct ieee80211_tx_info
*tx_info
;
1840 struct mwl8k_vif
*mwl8k_vif
;
1841 struct ieee80211_hdr
*wh
;
1842 struct mwl8k_tx_queue
*txq
;
1843 struct mwl8k_tx_desc
*tx
;
1850 struct mwl8k_ampdu_stream
*stream
= NULL
;
1851 bool start_ba_session
= false;
1852 bool mgmtframe
= false;
1853 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)skb
->data
;
1854 bool eapol_frame
= false;
1856 wh
= (struct ieee80211_hdr
*)skb
->data
;
1857 if (ieee80211_is_data_qos(wh
->frame_control
))
1858 qos
= le16_to_cpu(*((__le16
*)ieee80211_get_qos_ctl(wh
)));
1862 if (skb
->protocol
== cpu_to_be16(ETH_P_PAE
))
1865 if (ieee80211_is_mgmt(wh
->frame_control
))
1869 mwl8k_encapsulate_tx_frame(priv
, skb
);
1871 mwl8k_add_dma_header(priv
, skb
, 0, 0);
1873 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1875 tx_info
= IEEE80211_SKB_CB(skb
);
1876 mwl8k_vif
= MWL8K_VIF(tx_info
->control
.vif
);
1878 if (tx_info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
1879 wh
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
1880 wh
->seq_ctrl
|= cpu_to_le16(mwl8k_vif
->seqno
);
1881 mwl8k_vif
->seqno
+= 0x10;
1884 /* Setup firmware control bit fields for each frame type. */
1887 if (ieee80211_is_mgmt(wh
->frame_control
) ||
1888 ieee80211_is_ctl(wh
->frame_control
)) {
1890 qos
|= MWL8K_QOS_QLEN_UNSPEC
| MWL8K_QOS_EOSP
;
1891 } else if (ieee80211_is_data(wh
->frame_control
)) {
1893 if (is_multicast_ether_addr(wh
->addr1
))
1894 txstatus
|= MWL8K_TXD_STATUS_MULTICAST_TX
;
1896 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
1897 if (tx_info
->flags
& IEEE80211_TX_CTL_AMPDU
)
1898 qos
|= MWL8K_QOS_ACK_POLICY_BLOCKACK
;
1900 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
1903 /* Queue ADDBA request in the respective data queue. While setting up
1904 * the ampdu stream, mac80211 queues further packets for that
1905 * particular ra/tid pair. However, packets piled up in the hardware
1906 * for that ra/tid pair will still go out. ADDBA request and the
1907 * related data packets going out from different queues asynchronously
1908 * will cause a shift in the receiver window which might result in
1909 * ampdu packets getting dropped at the receiver after the stream has
1912 if (unlikely(ieee80211_is_action(wh
->frame_control
) &&
1913 mgmt
->u
.action
.category
== WLAN_CATEGORY_BACK
&&
1914 mgmt
->u
.action
.u
.addba_req
.action_code
== WLAN_ACTION_ADDBA_REQ
&&
1916 u16 capab
= le16_to_cpu(mgmt
->u
.action
.u
.addba_req
.capab
);
1917 tid
= (capab
& IEEE80211_ADDBA_PARAM_TID_MASK
) >> 2;
1918 index
= mwl8k_tid_queue_mapping(tid
);
1923 if (priv
->ap_fw
&& sta
&& sta
->ht_cap
.ht_supported
&& !eapol_frame
&&
1924 ieee80211_is_data_qos(wh
->frame_control
)) {
1926 mwl8k_tx_count_packet(sta
, tid
);
1927 spin_lock(&priv
->stream_lock
);
1928 stream
= mwl8k_lookup_stream(hw
, sta
->addr
, tid
);
1929 if (stream
!= NULL
) {
1930 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
1931 txpriority
= stream
->txq_idx
;
1932 index
= stream
->txq_idx
;
1933 } else if (stream
->state
== AMPDU_STREAM_NEW
) {
1934 /* We get here if the driver sends us packets
1935 * after we've initiated a stream, but before
1936 * our ampdu_action routine has been called
1937 * with IEEE80211_AMPDU_TX_START to get the SSN
1938 * for the ADDBA request. So this packet can
1939 * go out with no risk of sequence number
1940 * mismatch. No special handling is required.
1943 /* Drop packets that would go out after the
1944 * ADDBA request was sent but before the ADDBA
1945 * response is received. If we don't do this,
1946 * the recipient would probably receive it
1947 * after the ADDBA request with SSN 0. This
1948 * will cause the recipient's BA receive window
1949 * to shift, which would cause the subsequent
1950 * packets in the BA stream to be discarded.
1951 * mac80211 queues our packets for us in this
1952 * case, so this is really just a safety check.
1954 wiphy_warn(hw
->wiphy
,
1955 "Cannot send packet while ADDBA "
1956 "dialog is underway.\n");
1957 spin_unlock(&priv
->stream_lock
);
1962 /* Defer calling mwl8k_start_stream so that the current
1963 * skb can go out before the ADDBA request. This
1964 * prevents sequence number mismatch at the recepient
1965 * as described above.
1967 if (mwl8k_ampdu_allowed(sta
, tid
)) {
1968 stream
= mwl8k_add_stream(hw
, sta
, tid
);
1970 start_ba_session
= true;
1973 spin_unlock(&priv
->stream_lock
);
1976 dma
= pci_map_single(priv
->pdev
, skb
->data
,
1977 skb
->len
, PCI_DMA_TODEVICE
);
1979 if (pci_dma_mapping_error(priv
->pdev
, dma
)) {
1980 wiphy_debug(hw
->wiphy
,
1981 "failed to dma map skb, dropping TX frame.\n");
1982 if (start_ba_session
) {
1983 spin_lock(&priv
->stream_lock
);
1984 mwl8k_remove_stream(hw
, stream
);
1985 spin_unlock(&priv
->stream_lock
);
1991 spin_lock_bh(&priv
->tx_lock
);
1993 txq
= priv
->txq
+ index
;
1995 /* Mgmt frames that go out frequently are probe
1996 * responses. Other mgmt frames got out relatively
1997 * infrequently. Hence reserve 2 buffers so that
1998 * other mgmt frames do not get dropped due to an
1999 * already queued probe response in one of the
2003 if (txq
->len
>= MWL8K_TX_DESCS
- 2) {
2004 if (!mgmtframe
|| txq
->len
== MWL8K_TX_DESCS
) {
2005 if (start_ba_session
) {
2006 spin_lock(&priv
->stream_lock
);
2007 mwl8k_remove_stream(hw
, stream
);
2008 spin_unlock(&priv
->stream_lock
);
2010 spin_unlock_bh(&priv
->tx_lock
);
2011 pci_unmap_single(priv
->pdev
, dma
, skb
->len
,
2018 BUG_ON(txq
->skb
[txq
->tail
] != NULL
);
2019 txq
->skb
[txq
->tail
] = skb
;
2021 tx
= txq
->txd
+ txq
->tail
;
2022 tx
->data_rate
= txdatarate
;
2023 tx
->tx_priority
= txpriority
;
2024 tx
->qos_control
= cpu_to_le16(qos
);
2025 tx
->pkt_phys_addr
= cpu_to_le32(dma
);
2026 tx
->pkt_len
= cpu_to_le16(skb
->len
);
2028 if (!priv
->ap_fw
&& sta
!= NULL
)
2029 tx
->peer_id
= MWL8K_STA(sta
)->peer_id
;
2033 if (priv
->ap_fw
&& ieee80211_is_data(wh
->frame_control
) && !eapol_frame
)
2034 tx
->timestamp
= cpu_to_le32(ioread32(priv
->regs
+
2035 MWL8K_HW_TIMER_REGISTER
));
2040 tx
->status
= cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
| txstatus
);
2043 priv
->pending_tx_pkts
++;
2046 if (txq
->tail
== MWL8K_TX_DESCS
)
2049 mwl8k_tx_start(priv
);
2051 spin_unlock_bh(&priv
->tx_lock
);
2053 /* Initiate the ampdu session here */
2054 if (start_ba_session
) {
2055 spin_lock(&priv
->stream_lock
);
2056 if (mwl8k_start_stream(hw
, stream
))
2057 mwl8k_remove_stream(hw
, stream
);
2058 spin_unlock(&priv
->stream_lock
);
2066 * We have the following requirements for issuing firmware commands:
2067 * - Some commands require that the packet transmit path is idle when
2068 * the command is issued. (For simplicity, we'll just quiesce the
2069 * transmit path for every command.)
2070 * - There are certain sequences of commands that need to be issued to
2071 * the hardware sequentially, with no other intervening commands.
2073 * This leads to an implementation of a "firmware lock" as a mutex that
2074 * can be taken recursively, and which is taken by both the low-level
2075 * command submission function (mwl8k_post_cmd) as well as any users of
2076 * that function that require issuing of an atomic sequence of commands,
2077 * and quiesces the transmit path whenever it's taken.
2079 static int mwl8k_fw_lock(struct ieee80211_hw
*hw
)
2081 struct mwl8k_priv
*priv
= hw
->priv
;
2083 if (priv
->fw_mutex_owner
!= current
) {
2086 mutex_lock(&priv
->fw_mutex
);
2087 ieee80211_stop_queues(hw
);
2089 rc
= mwl8k_tx_wait_empty(hw
);
2091 if (!priv
->hw_restart_in_progress
)
2092 ieee80211_wake_queues(hw
);
2094 mutex_unlock(&priv
->fw_mutex
);
2099 priv
->fw_mutex_owner
= current
;
2102 priv
->fw_mutex_depth
++;
2107 static void mwl8k_fw_unlock(struct ieee80211_hw
*hw
)
2109 struct mwl8k_priv
*priv
= hw
->priv
;
2111 if (!--priv
->fw_mutex_depth
) {
2112 if (!priv
->hw_restart_in_progress
)
2113 ieee80211_wake_queues(hw
);
2115 priv
->fw_mutex_owner
= NULL
;
2116 mutex_unlock(&priv
->fw_mutex
);
2122 * Command processing.
2125 /* Timeout firmware commands after 10s */
2126 #define MWL8K_CMD_TIMEOUT_MS 10000
2128 static int mwl8k_post_cmd(struct ieee80211_hw
*hw
, struct mwl8k_cmd_pkt
*cmd
)
2130 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
2131 struct mwl8k_priv
*priv
= hw
->priv
;
2132 void __iomem
*regs
= priv
->regs
;
2133 dma_addr_t dma_addr
;
2134 unsigned int dma_size
;
2136 unsigned long timeout
= 0;
2139 cmd
->result
= (__force __le16
) 0xffff;
2140 dma_size
= le16_to_cpu(cmd
->length
);
2141 dma_addr
= pci_map_single(priv
->pdev
, cmd
, dma_size
,
2142 PCI_DMA_BIDIRECTIONAL
);
2143 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
2146 rc
= mwl8k_fw_lock(hw
);
2148 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2149 PCI_DMA_BIDIRECTIONAL
);
2153 priv
->hostcmd_wait
= &cmd_wait
;
2154 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
2155 iowrite32(MWL8K_H2A_INT_DOORBELL
,
2156 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2157 iowrite32(MWL8K_H2A_INT_DUMMY
,
2158 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2160 timeout
= wait_for_completion_timeout(&cmd_wait
,
2161 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS
));
2163 priv
->hostcmd_wait
= NULL
;
2165 mwl8k_fw_unlock(hw
);
2167 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2168 PCI_DMA_BIDIRECTIONAL
);
2171 wiphy_err(hw
->wiphy
, "Command %s timeout after %u ms\n",
2172 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2173 MWL8K_CMD_TIMEOUT_MS
);
2178 ms
= MWL8K_CMD_TIMEOUT_MS
- jiffies_to_msecs(timeout
);
2180 rc
= cmd
->result
? -EINVAL
: 0;
2182 wiphy_err(hw
->wiphy
, "Command %s error 0x%x\n",
2183 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2184 le16_to_cpu(cmd
->result
));
2186 wiphy_notice(hw
->wiphy
, "Command %s took %d ms\n",
2187 mwl8k_cmd_name(cmd
->code
,
2195 static int mwl8k_post_pervif_cmd(struct ieee80211_hw
*hw
,
2196 struct ieee80211_vif
*vif
,
2197 struct mwl8k_cmd_pkt
*cmd
)
2200 cmd
->macid
= MWL8K_VIF(vif
)->macid
;
2201 return mwl8k_post_cmd(hw
, cmd
);
2205 * Setup code shared between STA and AP firmware images.
2207 static void mwl8k_setup_2ghz_band(struct ieee80211_hw
*hw
)
2209 struct mwl8k_priv
*priv
= hw
->priv
;
2211 BUILD_BUG_ON(sizeof(priv
->channels_24
) != sizeof(mwl8k_channels_24
));
2212 memcpy(priv
->channels_24
, mwl8k_channels_24
, sizeof(mwl8k_channels_24
));
2214 BUILD_BUG_ON(sizeof(priv
->rates_24
) != sizeof(mwl8k_rates_24
));
2215 memcpy(priv
->rates_24
, mwl8k_rates_24
, sizeof(mwl8k_rates_24
));
2217 priv
->band_24
.band
= IEEE80211_BAND_2GHZ
;
2218 priv
->band_24
.channels
= priv
->channels_24
;
2219 priv
->band_24
.n_channels
= ARRAY_SIZE(mwl8k_channels_24
);
2220 priv
->band_24
.bitrates
= priv
->rates_24
;
2221 priv
->band_24
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_24
);
2223 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band_24
;
2226 static void mwl8k_setup_5ghz_band(struct ieee80211_hw
*hw
)
2228 struct mwl8k_priv
*priv
= hw
->priv
;
2230 BUILD_BUG_ON(sizeof(priv
->channels_50
) != sizeof(mwl8k_channels_50
));
2231 memcpy(priv
->channels_50
, mwl8k_channels_50
, sizeof(mwl8k_channels_50
));
2233 BUILD_BUG_ON(sizeof(priv
->rates_50
) != sizeof(mwl8k_rates_50
));
2234 memcpy(priv
->rates_50
, mwl8k_rates_50
, sizeof(mwl8k_rates_50
));
2236 priv
->band_50
.band
= IEEE80211_BAND_5GHZ
;
2237 priv
->band_50
.channels
= priv
->channels_50
;
2238 priv
->band_50
.n_channels
= ARRAY_SIZE(mwl8k_channels_50
);
2239 priv
->band_50
.bitrates
= priv
->rates_50
;
2240 priv
->band_50
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_50
);
2242 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->band_50
;
2246 * CMD_GET_HW_SPEC (STA version).
2248 struct mwl8k_cmd_get_hw_spec_sta
{
2249 struct mwl8k_cmd_pkt header
;
2251 __u8 host_interface
;
2253 __u8 perm_addr
[ETH_ALEN
];
2258 __u8 mcs_bitmap
[16];
2259 __le32 rx_queue_ptr
;
2260 __le32 num_tx_queues
;
2261 __le32 tx_queue_ptrs
[MWL8K_TX_WMM_QUEUES
];
2263 __le32 num_tx_desc_per_queue
;
2267 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2268 #define MWL8K_CAP_GREENFIELD 0x08000000
2269 #define MWL8K_CAP_AMPDU 0x04000000
2270 #define MWL8K_CAP_RX_STBC 0x01000000
2271 #define MWL8K_CAP_TX_STBC 0x00800000
2272 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2273 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2274 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2275 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2276 #define MWL8K_CAP_DELAY_BA 0x00003000
2277 #define MWL8K_CAP_MIMO 0x00000200
2278 #define MWL8K_CAP_40MHZ 0x00000100
2279 #define MWL8K_CAP_BAND_MASK 0x00000007
2280 #define MWL8K_CAP_5GHZ 0x00000004
2281 #define MWL8K_CAP_2GHZ4 0x00000001
2284 mwl8k_set_ht_caps(struct ieee80211_hw
*hw
,
2285 struct ieee80211_supported_band
*band
, u32 cap
)
2290 band
->ht_cap
.ht_supported
= 1;
2292 if (cap
& MWL8K_CAP_MAX_AMSDU
)
2293 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
2294 if (cap
& MWL8K_CAP_GREENFIELD
)
2295 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_GRN_FLD
;
2296 if (cap
& MWL8K_CAP_AMPDU
) {
2297 hw
->flags
|= IEEE80211_HW_AMPDU_AGGREGATION
;
2298 band
->ht_cap
.ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
;
2299 band
->ht_cap
.ampdu_density
= IEEE80211_HT_MPDU_DENSITY_NONE
;
2301 if (cap
& MWL8K_CAP_RX_STBC
)
2302 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_RX_STBC
;
2303 if (cap
& MWL8K_CAP_TX_STBC
)
2304 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_TX_STBC
;
2305 if (cap
& MWL8K_CAP_SHORTGI_40MHZ
)
2306 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_40
;
2307 if (cap
& MWL8K_CAP_SHORTGI_20MHZ
)
2308 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_20
;
2309 if (cap
& MWL8K_CAP_DELAY_BA
)
2310 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_DELAY_BA
;
2311 if (cap
& MWL8K_CAP_40MHZ
)
2312 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
2314 rx_streams
= hweight32(cap
& MWL8K_CAP_RX_ANTENNA_MASK
);
2315 tx_streams
= hweight32(cap
& MWL8K_CAP_TX_ANTENNA_MASK
);
2317 band
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2318 if (rx_streams
>= 2)
2319 band
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2320 if (rx_streams
>= 3)
2321 band
->ht_cap
.mcs
.rx_mask
[2] = 0xff;
2322 band
->ht_cap
.mcs
.rx_mask
[4] = 0x01;
2323 band
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2325 if (rx_streams
!= tx_streams
) {
2326 band
->ht_cap
.mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
2327 band
->ht_cap
.mcs
.tx_params
|= (tx_streams
- 1) <<
2328 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2333 mwl8k_set_caps(struct ieee80211_hw
*hw
, u32 caps
)
2335 struct mwl8k_priv
*priv
= hw
->priv
;
2337 if ((caps
& MWL8K_CAP_2GHZ4
) || !(caps
& MWL8K_CAP_BAND_MASK
)) {
2338 mwl8k_setup_2ghz_band(hw
);
2339 if (caps
& MWL8K_CAP_MIMO
)
2340 mwl8k_set_ht_caps(hw
, &priv
->band_24
, caps
);
2343 if (caps
& MWL8K_CAP_5GHZ
) {
2344 mwl8k_setup_5ghz_band(hw
);
2345 if (caps
& MWL8K_CAP_MIMO
)
2346 mwl8k_set_ht_caps(hw
, &priv
->band_50
, caps
);
2350 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw
*hw
)
2352 struct mwl8k_priv
*priv
= hw
->priv
;
2353 struct mwl8k_cmd_get_hw_spec_sta
*cmd
;
2357 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2361 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2362 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2364 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2365 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2366 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2367 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2368 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
2369 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[i
].txd_dma
);
2370 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2371 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2373 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2376 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2377 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2378 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2379 priv
->hw_rev
= cmd
->hw_rev
;
2380 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2381 priv
->ap_macids_supported
= 0x00000000;
2382 priv
->sta_macids_supported
= 0x00000001;
2390 * CMD_GET_HW_SPEC (AP version).
2392 struct mwl8k_cmd_get_hw_spec_ap
{
2393 struct mwl8k_cmd_pkt header
;
2395 __u8 host_interface
;
2398 __u8 perm_addr
[ETH_ALEN
];
2409 __le32 fw_api_version
;
2411 __le32 num_of_ampdu_queues
;
2412 __le32 wcbbase_ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
2415 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw
*hw
)
2417 struct mwl8k_priv
*priv
= hw
->priv
;
2418 struct mwl8k_cmd_get_hw_spec_ap
*cmd
;
2422 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2426 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2427 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2429 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2430 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2432 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2437 api_version
= le32_to_cpu(cmd
->fw_api_version
);
2438 if (priv
->device_info
->fw_api_ap
!= api_version
) {
2439 printk(KERN_ERR
"%s: Unsupported fw API version for %s."
2440 " Expected %d got %d.\n", MWL8K_NAME
,
2441 priv
->device_info
->part_name
,
2442 priv
->device_info
->fw_api_ap
,
2447 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2448 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2449 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2450 priv
->hw_rev
= cmd
->hw_rev
;
2451 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2452 priv
->ap_macids_supported
= 0x000000ff;
2453 priv
->sta_macids_supported
= 0x00000000;
2454 priv
->num_ampdu_queues
= le32_to_cpu(cmd
->num_of_ampdu_queues
);
2455 if (priv
->num_ampdu_queues
> MWL8K_MAX_AMPDU_QUEUES
) {
2456 wiphy_warn(hw
->wiphy
, "fw reported %d ampdu queues"
2457 " but we only support %d.\n",
2458 priv
->num_ampdu_queues
,
2459 MWL8K_MAX_AMPDU_QUEUES
);
2460 priv
->num_ampdu_queues
= MWL8K_MAX_AMPDU_QUEUES
;
2462 off
= le32_to_cpu(cmd
->rxwrptr
) & 0xffff;
2463 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2465 off
= le32_to_cpu(cmd
->rxrdptr
) & 0xffff;
2466 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2468 priv
->txq_offset
[0] = le32_to_cpu(cmd
->wcbbase0
) & 0xffff;
2469 priv
->txq_offset
[1] = le32_to_cpu(cmd
->wcbbase1
) & 0xffff;
2470 priv
->txq_offset
[2] = le32_to_cpu(cmd
->wcbbase2
) & 0xffff;
2471 priv
->txq_offset
[3] = le32_to_cpu(cmd
->wcbbase3
) & 0xffff;
2473 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++)
2474 priv
->txq_offset
[i
+ MWL8K_TX_WMM_QUEUES
] =
2475 le32_to_cpu(cmd
->wcbbase_ampdu
[i
]) & 0xffff;
2486 struct mwl8k_cmd_set_hw_spec
{
2487 struct mwl8k_cmd_pkt header
;
2489 __u8 host_interface
;
2491 __u8 perm_addr
[ETH_ALEN
];
2496 __le32 rx_queue_ptr
;
2497 __le32 num_tx_queues
;
2498 __le32 tx_queue_ptrs
[MWL8K_MAX_TX_QUEUES
];
2500 __le32 num_tx_desc_per_queue
;
2504 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2505 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2506 * the packets that are queued for more than 500ms, will be dropped in the
2507 * hardware. This helps minimizing the issues caused due to head-of-line
2508 * blocking where a slow client can hog the bandwidth and affect traffic to a
2511 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2512 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2513 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2514 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2515 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2517 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw
*hw
)
2519 struct mwl8k_priv
*priv
= hw
->priv
;
2520 struct mwl8k_cmd_set_hw_spec
*cmd
;
2524 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2528 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_HW_SPEC
);
2529 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2531 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2532 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2533 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2536 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2537 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2538 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2539 * priority is interpreted the right way in firmware.
2541 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
2542 int j
= mwl8k_tx_queues(priv
) - 1 - i
;
2543 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[j
].txd_dma
);
2546 cmd
->flags
= cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT
|
2547 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP
|
2548 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON
|
2549 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY
|
2550 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR
);
2551 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2552 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2554 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2561 * CMD_MAC_MULTICAST_ADR.
2563 struct mwl8k_cmd_mac_multicast_adr
{
2564 struct mwl8k_cmd_pkt header
;
2567 __u8 addr
[0][ETH_ALEN
];
2570 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2571 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2572 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2573 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2575 static struct mwl8k_cmd_pkt
*
2576 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw
*hw
, int allmulti
,
2577 struct netdev_hw_addr_list
*mc_list
)
2579 struct mwl8k_priv
*priv
= hw
->priv
;
2580 struct mwl8k_cmd_mac_multicast_adr
*cmd
;
2585 mc_count
= netdev_hw_addr_list_count(mc_list
);
2587 if (allmulti
|| mc_count
> priv
->num_mcaddrs
) {
2592 size
= sizeof(*cmd
) + mc_count
* ETH_ALEN
;
2594 cmd
= kzalloc(size
, GFP_ATOMIC
);
2598 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR
);
2599 cmd
->header
.length
= cpu_to_le16(size
);
2600 cmd
->action
= cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED
|
2601 MWL8K_ENABLE_RX_BROADCAST
);
2604 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST
);
2605 } else if (mc_count
) {
2606 struct netdev_hw_addr
*ha
;
2609 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST
);
2610 cmd
->numaddr
= cpu_to_le16(mc_count
);
2611 netdev_hw_addr_list_for_each(ha
, mc_list
) {
2612 memcpy(cmd
->addr
[i
], ha
->addr
, ETH_ALEN
);
2616 return &cmd
->header
;
2622 struct mwl8k_cmd_get_stat
{
2623 struct mwl8k_cmd_pkt header
;
2627 #define MWL8K_STAT_ACK_FAILURE 9
2628 #define MWL8K_STAT_RTS_FAILURE 12
2629 #define MWL8K_STAT_FCS_ERROR 24
2630 #define MWL8K_STAT_RTS_SUCCESS 11
2632 static int mwl8k_cmd_get_stat(struct ieee80211_hw
*hw
,
2633 struct ieee80211_low_level_stats
*stats
)
2635 struct mwl8k_cmd_get_stat
*cmd
;
2638 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2642 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_STAT
);
2643 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2645 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2647 stats
->dot11ACKFailureCount
=
2648 le32_to_cpu(cmd
->stats
[MWL8K_STAT_ACK_FAILURE
]);
2649 stats
->dot11RTSFailureCount
=
2650 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_FAILURE
]);
2651 stats
->dot11FCSErrorCount
=
2652 le32_to_cpu(cmd
->stats
[MWL8K_STAT_FCS_ERROR
]);
2653 stats
->dot11RTSSuccessCount
=
2654 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_SUCCESS
]);
2662 * CMD_RADIO_CONTROL.
2664 struct mwl8k_cmd_radio_control
{
2665 struct mwl8k_cmd_pkt header
;
2672 mwl8k_cmd_radio_control(struct ieee80211_hw
*hw
, bool enable
, bool force
)
2674 struct mwl8k_priv
*priv
= hw
->priv
;
2675 struct mwl8k_cmd_radio_control
*cmd
;
2678 if (enable
== priv
->radio_on
&& !force
)
2681 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2685 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RADIO_CONTROL
);
2686 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2687 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2688 cmd
->control
= cpu_to_le16(priv
->radio_short_preamble
? 3 : 1);
2689 cmd
->radio_on
= cpu_to_le16(enable
? 0x0001 : 0x0000);
2691 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2695 priv
->radio_on
= enable
;
2700 static int mwl8k_cmd_radio_disable(struct ieee80211_hw
*hw
)
2702 return mwl8k_cmd_radio_control(hw
, 0, 0);
2705 static int mwl8k_cmd_radio_enable(struct ieee80211_hw
*hw
)
2707 return mwl8k_cmd_radio_control(hw
, 1, 0);
2711 mwl8k_set_radio_preamble(struct ieee80211_hw
*hw
, bool short_preamble
)
2713 struct mwl8k_priv
*priv
= hw
->priv
;
2715 priv
->radio_short_preamble
= short_preamble
;
2717 return mwl8k_cmd_radio_control(hw
, 1, 1);
2723 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2725 struct mwl8k_cmd_rf_tx_power
{
2726 struct mwl8k_cmd_pkt header
;
2728 __le16 support_level
;
2729 __le16 current_level
;
2731 __le16 power_level_list
[MWL8K_RF_TX_POWER_LEVEL_TOTAL
];
2734 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw
*hw
, int dBm
)
2736 struct mwl8k_cmd_rf_tx_power
*cmd
;
2739 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2743 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_TX_POWER
);
2744 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2745 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2746 cmd
->support_level
= cpu_to_le16(dBm
);
2748 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2757 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2759 struct mwl8k_cmd_tx_power
{
2760 struct mwl8k_cmd_pkt header
;
2766 __le16 power_level_list
[MWL8K_TX_POWER_LEVEL_TOTAL
];
2769 static int mwl8k_cmd_tx_power(struct ieee80211_hw
*hw
,
2770 struct ieee80211_conf
*conf
,
2773 struct ieee80211_channel
*channel
= conf
->channel
;
2774 struct mwl8k_cmd_tx_power
*cmd
;
2778 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2782 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_TX_POWER
);
2783 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2784 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET_LIST
);
2786 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2787 cmd
->band
= cpu_to_le16(0x1);
2788 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2789 cmd
->band
= cpu_to_le16(0x4);
2791 cmd
->channel
= cpu_to_le16(channel
->hw_value
);
2793 if (conf
->channel_type
== NL80211_CHAN_NO_HT
||
2794 conf
->channel_type
== NL80211_CHAN_HT20
) {
2795 cmd
->bw
= cpu_to_le16(0x2);
2797 cmd
->bw
= cpu_to_le16(0x4);
2798 if (conf
->channel_type
== NL80211_CHAN_HT40MINUS
)
2799 cmd
->sub_ch
= cpu_to_le16(0x3);
2800 else if (conf
->channel_type
== NL80211_CHAN_HT40PLUS
)
2801 cmd
->sub_ch
= cpu_to_le16(0x1);
2804 for (i
= 0; i
< MWL8K_TX_POWER_LEVEL_TOTAL
; i
++)
2805 cmd
->power_level_list
[i
] = cpu_to_le16(pwr
);
2807 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2816 struct mwl8k_cmd_rf_antenna
{
2817 struct mwl8k_cmd_pkt header
;
2822 #define MWL8K_RF_ANTENNA_RX 1
2823 #define MWL8K_RF_ANTENNA_TX 2
2826 mwl8k_cmd_rf_antenna(struct ieee80211_hw
*hw
, int antenna
, int mask
)
2828 struct mwl8k_cmd_rf_antenna
*cmd
;
2831 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2835 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_ANTENNA
);
2836 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2837 cmd
->antenna
= cpu_to_le16(antenna
);
2838 cmd
->mode
= cpu_to_le16(mask
);
2840 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2849 struct mwl8k_cmd_set_beacon
{
2850 struct mwl8k_cmd_pkt header
;
2855 static int mwl8k_cmd_set_beacon(struct ieee80211_hw
*hw
,
2856 struct ieee80211_vif
*vif
, u8
*beacon
, int len
)
2858 struct mwl8k_cmd_set_beacon
*cmd
;
2861 cmd
= kzalloc(sizeof(*cmd
) + len
, GFP_KERNEL
);
2865 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_BEACON
);
2866 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
) + len
);
2867 cmd
->beacon_len
= cpu_to_le16(len
);
2868 memcpy(cmd
->beacon
, beacon
, len
);
2870 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
2879 struct mwl8k_cmd_set_pre_scan
{
2880 struct mwl8k_cmd_pkt header
;
2883 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw
*hw
)
2885 struct mwl8k_cmd_set_pre_scan
*cmd
;
2888 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2892 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN
);
2893 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2895 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2902 * CMD_SET_POST_SCAN.
2904 struct mwl8k_cmd_set_post_scan
{
2905 struct mwl8k_cmd_pkt header
;
2907 __u8 bssid
[ETH_ALEN
];
2911 mwl8k_cmd_set_post_scan(struct ieee80211_hw
*hw
, const __u8
*mac
)
2913 struct mwl8k_cmd_set_post_scan
*cmd
;
2916 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2920 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_POST_SCAN
);
2921 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2923 memcpy(cmd
->bssid
, mac
, ETH_ALEN
);
2925 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2932 * CMD_SET_RF_CHANNEL.
2934 struct mwl8k_cmd_set_rf_channel
{
2935 struct mwl8k_cmd_pkt header
;
2937 __u8 current_channel
;
2938 __le32 channel_flags
;
2941 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw
*hw
,
2942 struct ieee80211_conf
*conf
)
2944 struct ieee80211_channel
*channel
= conf
->channel
;
2945 struct mwl8k_cmd_set_rf_channel
*cmd
;
2948 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2952 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL
);
2953 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2954 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2955 cmd
->current_channel
= channel
->hw_value
;
2957 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2958 cmd
->channel_flags
|= cpu_to_le32(0x00000001);
2959 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2960 cmd
->channel_flags
|= cpu_to_le32(0x00000004);
2962 if (conf
->channel_type
== NL80211_CHAN_NO_HT
||
2963 conf
->channel_type
== NL80211_CHAN_HT20
)
2964 cmd
->channel_flags
|= cpu_to_le32(0x00000080);
2965 else if (conf
->channel_type
== NL80211_CHAN_HT40MINUS
)
2966 cmd
->channel_flags
|= cpu_to_le32(0x000001900);
2967 else if (conf
->channel_type
== NL80211_CHAN_HT40PLUS
)
2968 cmd
->channel_flags
|= cpu_to_le32(0x000000900);
2970 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2979 #define MWL8K_FRAME_PROT_DISABLED 0x00
2980 #define MWL8K_FRAME_PROT_11G 0x07
2981 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2982 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2984 struct mwl8k_cmd_update_set_aid
{
2985 struct mwl8k_cmd_pkt header
;
2988 /* AP's MAC address (BSSID) */
2989 __u8 bssid
[ETH_ALEN
];
2990 __le16 protection_mode
;
2991 __u8 supp_rates
[14];
2994 static void legacy_rate_mask_to_array(u8
*rates
, u32 mask
)
3000 * Clear nonstandard rates 4 and 13.
3004 for (i
= 0, j
= 0; i
< 14; i
++) {
3005 if (mask
& (1 << i
))
3006 rates
[j
++] = mwl8k_rates_24
[i
].hw_value
;
3011 mwl8k_cmd_set_aid(struct ieee80211_hw
*hw
,
3012 struct ieee80211_vif
*vif
, u32 legacy_rate_mask
)
3014 struct mwl8k_cmd_update_set_aid
*cmd
;
3018 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3022 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_AID
);
3023 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3024 cmd
->aid
= cpu_to_le16(vif
->bss_conf
.aid
);
3025 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
3027 if (vif
->bss_conf
.use_cts_prot
) {
3028 prot_mode
= MWL8K_FRAME_PROT_11G
;
3030 switch (vif
->bss_conf
.ht_operation_mode
&
3031 IEEE80211_HT_OP_MODE_PROTECTION
) {
3032 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
3033 prot_mode
= MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY
;
3035 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
3036 prot_mode
= MWL8K_FRAME_PROT_11N_HT_ALL
;
3039 prot_mode
= MWL8K_FRAME_PROT_DISABLED
;
3043 cmd
->protection_mode
= cpu_to_le16(prot_mode
);
3045 legacy_rate_mask_to_array(cmd
->supp_rates
, legacy_rate_mask
);
3047 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3056 struct mwl8k_cmd_set_rate
{
3057 struct mwl8k_cmd_pkt header
;
3058 __u8 legacy_rates
[14];
3060 /* Bitmap for supported MCS codes. */
3066 mwl8k_cmd_set_rate(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
3067 u32 legacy_rate_mask
, u8
*mcs_rates
)
3069 struct mwl8k_cmd_set_rate
*cmd
;
3072 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3076 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATE
);
3077 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3078 legacy_rate_mask_to_array(cmd
->legacy_rates
, legacy_rate_mask
);
3079 memcpy(cmd
->mcs_set
, mcs_rates
, 16);
3081 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3088 * CMD_FINALIZE_JOIN.
3090 #define MWL8K_FJ_BEACON_MAXLEN 128
3092 struct mwl8k_cmd_finalize_join
{
3093 struct mwl8k_cmd_pkt header
;
3094 __le32 sleep_interval
; /* Number of beacon periods to sleep */
3095 __u8 beacon_data
[MWL8K_FJ_BEACON_MAXLEN
];
3098 static int mwl8k_cmd_finalize_join(struct ieee80211_hw
*hw
, void *frame
,
3099 int framelen
, int dtim
)
3101 struct mwl8k_cmd_finalize_join
*cmd
;
3102 struct ieee80211_mgmt
*payload
= frame
;
3106 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3110 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN
);
3111 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3112 cmd
->sleep_interval
= cpu_to_le32(dtim
? dtim
: 1);
3114 payload_len
= framelen
- ieee80211_hdrlen(payload
->frame_control
);
3115 if (payload_len
< 0)
3117 else if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
3118 payload_len
= MWL8K_FJ_BEACON_MAXLEN
;
3120 memcpy(cmd
->beacon_data
, &payload
->u
.beacon
, payload_len
);
3122 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3129 * CMD_SET_RTS_THRESHOLD.
3131 struct mwl8k_cmd_set_rts_threshold
{
3132 struct mwl8k_cmd_pkt header
;
3138 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw
*hw
, int rts_thresh
)
3140 struct mwl8k_cmd_set_rts_threshold
*cmd
;
3143 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3147 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD
);
3148 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3149 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3150 cmd
->threshold
= cpu_to_le16(rts_thresh
);
3152 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3161 struct mwl8k_cmd_set_slot
{
3162 struct mwl8k_cmd_pkt header
;
3167 static int mwl8k_cmd_set_slot(struct ieee80211_hw
*hw
, bool short_slot_time
)
3169 struct mwl8k_cmd_set_slot
*cmd
;
3172 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3176 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_SLOT
);
3177 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3178 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3179 cmd
->short_slot
= short_slot_time
;
3181 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3188 * CMD_SET_EDCA_PARAMS.
3190 struct mwl8k_cmd_set_edca_params
{
3191 struct mwl8k_cmd_pkt header
;
3193 /* See MWL8K_SET_EDCA_XXX below */
3196 /* TX opportunity in units of 32 us */
3201 /* Log exponent of max contention period: 0...15 */
3204 /* Log exponent of min contention period: 0...15 */
3207 /* Adaptive interframe spacing in units of 32us */
3210 /* TX queue to configure */
3214 /* Log exponent of max contention period: 0...15 */
3217 /* Log exponent of min contention period: 0...15 */
3220 /* Adaptive interframe spacing in units of 32us */
3223 /* TX queue to configure */
3229 #define MWL8K_SET_EDCA_CW 0x01
3230 #define MWL8K_SET_EDCA_TXOP 0x02
3231 #define MWL8K_SET_EDCA_AIFS 0x04
3233 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3234 MWL8K_SET_EDCA_TXOP | \
3235 MWL8K_SET_EDCA_AIFS)
3238 mwl8k_cmd_set_edca_params(struct ieee80211_hw
*hw
, __u8 qnum
,
3239 __u16 cw_min
, __u16 cw_max
,
3240 __u8 aifs
, __u16 txop
)
3242 struct mwl8k_priv
*priv
= hw
->priv
;
3243 struct mwl8k_cmd_set_edca_params
*cmd
;
3246 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3250 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS
);
3251 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3252 cmd
->action
= cpu_to_le16(MWL8K_SET_EDCA_ALL
);
3253 cmd
->txop
= cpu_to_le16(txop
);
3255 cmd
->ap
.log_cw_max
= cpu_to_le32(ilog2(cw_max
+ 1));
3256 cmd
->ap
.log_cw_min
= cpu_to_le32(ilog2(cw_min
+ 1));
3257 cmd
->ap
.aifs
= aifs
;
3260 cmd
->sta
.log_cw_max
= (u8
)ilog2(cw_max
+ 1);
3261 cmd
->sta
.log_cw_min
= (u8
)ilog2(cw_min
+ 1);
3262 cmd
->sta
.aifs
= aifs
;
3263 cmd
->sta
.txq
= qnum
;
3266 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3275 struct mwl8k_cmd_set_wmm_mode
{
3276 struct mwl8k_cmd_pkt header
;
3280 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw
*hw
, bool enable
)
3282 struct mwl8k_priv
*priv
= hw
->priv
;
3283 struct mwl8k_cmd_set_wmm_mode
*cmd
;
3286 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3290 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_WMM_MODE
);
3291 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3292 cmd
->action
= cpu_to_le16(!!enable
);
3294 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3298 priv
->wmm_enabled
= enable
;
3306 struct mwl8k_cmd_mimo_config
{
3307 struct mwl8k_cmd_pkt header
;
3309 __u8 rx_antenna_map
;
3310 __u8 tx_antenna_map
;
3313 static int mwl8k_cmd_mimo_config(struct ieee80211_hw
*hw
, __u8 rx
, __u8 tx
)
3315 struct mwl8k_cmd_mimo_config
*cmd
;
3318 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3322 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MIMO_CONFIG
);
3323 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3324 cmd
->action
= cpu_to_le32((u32
)MWL8K_CMD_SET
);
3325 cmd
->rx_antenna_map
= rx
;
3326 cmd
->tx_antenna_map
= tx
;
3328 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3335 * CMD_USE_FIXED_RATE (STA version).
3337 struct mwl8k_cmd_use_fixed_rate_sta
{
3338 struct mwl8k_cmd_pkt header
;
3340 __le32 allow_rate_drop
;
3344 __le32 enable_retry
;
3353 #define MWL8K_USE_AUTO_RATE 0x0002
3354 #define MWL8K_UCAST_RATE 0
3356 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw
*hw
)
3358 struct mwl8k_cmd_use_fixed_rate_sta
*cmd
;
3361 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3365 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3366 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3367 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3368 cmd
->rate_type
= cpu_to_le32(MWL8K_UCAST_RATE
);
3370 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3377 * CMD_USE_FIXED_RATE (AP version).
3379 struct mwl8k_cmd_use_fixed_rate_ap
{
3380 struct mwl8k_cmd_pkt header
;
3382 __le32 allow_rate_drop
;
3384 struct mwl8k_rate_entry_ap
{
3386 __le32 enable_retry
;
3391 u8 multicast_rate_type
;
3396 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw
*hw
, int mcast
, int mgmt
)
3398 struct mwl8k_cmd_use_fixed_rate_ap
*cmd
;
3401 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3405 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3406 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3407 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3408 cmd
->multicast_rate
= mcast
;
3409 cmd
->management_rate
= mgmt
;
3411 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3418 * CMD_ENABLE_SNIFFER.
3420 struct mwl8k_cmd_enable_sniffer
{
3421 struct mwl8k_cmd_pkt header
;
3425 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw
*hw
, bool enable
)
3427 struct mwl8k_cmd_enable_sniffer
*cmd
;
3430 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3434 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER
);
3435 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3436 cmd
->action
= cpu_to_le32(!!enable
);
3438 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3444 struct mwl8k_cmd_update_mac_addr
{
3445 struct mwl8k_cmd_pkt header
;
3449 __u8 mac_addr
[ETH_ALEN
];
3451 __u8 mac_addr
[ETH_ALEN
];
3455 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3456 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3457 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3458 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3460 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw
*hw
,
3461 struct ieee80211_vif
*vif
, u8
*mac
, bool set
)
3463 struct mwl8k_priv
*priv
= hw
->priv
;
3464 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3465 struct mwl8k_cmd_update_mac_addr
*cmd
;
3469 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3470 if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3471 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->sta_macids_supported
))
3472 mac_type
= MWL8K_MAC_TYPE_PRIMARY_CLIENT
;
3474 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3475 } else if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_AP
) {
3476 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->ap_macids_supported
))
3477 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3479 mac_type
= MWL8K_MAC_TYPE_SECONDARY_AP
;
3482 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3487 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR
);
3489 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR
);
3491 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3493 cmd
->mbss
.mac_type
= cpu_to_le16(mac_type
);
3494 memcpy(cmd
->mbss
.mac_addr
, mac
, ETH_ALEN
);
3496 memcpy(cmd
->mac_addr
, mac
, ETH_ALEN
);
3499 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3506 * MWL8K_CMD_SET_MAC_ADDR.
3508 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw
*hw
,
3509 struct ieee80211_vif
*vif
, u8
*mac
)
3511 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, true);
3515 * MWL8K_CMD_DEL_MAC_ADDR.
3517 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw
*hw
,
3518 struct ieee80211_vif
*vif
, u8
*mac
)
3520 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, false);
3524 * CMD_SET_RATEADAPT_MODE.
3526 struct mwl8k_cmd_set_rate_adapt_mode
{
3527 struct mwl8k_cmd_pkt header
;
3532 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw
*hw
, __u16 mode
)
3534 struct mwl8k_cmd_set_rate_adapt_mode
*cmd
;
3537 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3541 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE
);
3542 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3543 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3544 cmd
->mode
= cpu_to_le16(mode
);
3546 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3553 * CMD_GET_WATCHDOG_BITMAP.
3555 struct mwl8k_cmd_get_watchdog_bitmap
{
3556 struct mwl8k_cmd_pkt header
;
3560 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw
*hw
, u8
*bitmap
)
3562 struct mwl8k_cmd_get_watchdog_bitmap
*cmd
;
3565 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3569 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP
);
3570 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3572 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3574 *bitmap
= cmd
->bitmap
;
3581 #define INVALID_BA 0xAA
3582 static void mwl8k_watchdog_ba_events(struct work_struct
*work
)
3585 u8 bitmap
= 0, stream_index
;
3586 struct mwl8k_ampdu_stream
*streams
;
3587 struct mwl8k_priv
*priv
=
3588 container_of(work
, struct mwl8k_priv
, watchdog_ba_handle
);
3590 rc
= mwl8k_cmd_get_watchdog_bitmap(priv
->hw
, &bitmap
);
3594 if (bitmap
== INVALID_BA
)
3597 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3598 stream_index
= bitmap
- MWL8K_TX_WMM_QUEUES
;
3600 BUG_ON(stream_index
>= priv
->num_ampdu_queues
);
3602 streams
= &priv
->ampdu
[stream_index
];
3604 if (streams
->state
== AMPDU_STREAM_ACTIVE
)
3605 ieee80211_stop_tx_ba_session(streams
->sta
, streams
->tid
);
3614 struct mwl8k_cmd_bss_start
{
3615 struct mwl8k_cmd_pkt header
;
3619 static int mwl8k_cmd_bss_start(struct ieee80211_hw
*hw
,
3620 struct ieee80211_vif
*vif
, int enable
)
3622 struct mwl8k_cmd_bss_start
*cmd
;
3625 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3629 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BSS_START
);
3630 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3631 cmd
->enable
= cpu_to_le32(enable
);
3633 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3644 * UPSTREAM is tx direction
3646 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3647 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3649 enum ba_stream_action_type
{
3658 struct mwl8k_create_ba_stream
{
3663 u8 peer_mac_addr
[6];
3669 u8 reset_seq_no_flag
;
3671 u8 sta_src_mac_addr
[6];
3674 struct mwl8k_destroy_ba_stream
{
3679 struct mwl8k_cmd_bastream
{
3680 struct mwl8k_cmd_pkt header
;
3683 struct mwl8k_create_ba_stream create_params
;
3684 struct mwl8k_destroy_ba_stream destroy_params
;
3689 mwl8k_check_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3690 struct ieee80211_vif
*vif
)
3692 struct mwl8k_cmd_bastream
*cmd
;
3695 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3699 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3700 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3702 cmd
->action
= cpu_to_le32(MWL8K_BA_CHECK
);
3704 cmd
->create_params
.queue_id
= stream
->idx
;
3705 memcpy(&cmd
->create_params
.peer_mac_addr
[0], stream
->sta
->addr
,
3707 cmd
->create_params
.tid
= stream
->tid
;
3709 cmd
->create_params
.flags
=
3710 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
) |
3711 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3713 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3721 mwl8k_create_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3722 u8 buf_size
, struct ieee80211_vif
*vif
)
3724 struct mwl8k_cmd_bastream
*cmd
;
3727 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3732 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3733 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3735 cmd
->action
= cpu_to_le32(MWL8K_BA_CREATE
);
3737 cmd
->create_params
.bar_thrs
= cpu_to_le32((u32
)buf_size
);
3738 cmd
->create_params
.window_size
= cpu_to_le32((u32
)buf_size
);
3739 cmd
->create_params
.queue_id
= stream
->idx
;
3741 memcpy(cmd
->create_params
.peer_mac_addr
, stream
->sta
->addr
, ETH_ALEN
);
3742 cmd
->create_params
.tid
= stream
->tid
;
3743 cmd
->create_params
.curr_seq_no
= cpu_to_le16(0);
3744 cmd
->create_params
.reset_seq_no_flag
= 1;
3746 cmd
->create_params
.param_info
=
3747 (stream
->sta
->ht_cap
.ampdu_factor
&
3748 IEEE80211_HT_AMPDU_PARM_FACTOR
) |
3749 ((stream
->sta
->ht_cap
.ampdu_density
<< 2) &
3750 IEEE80211_HT_AMPDU_PARM_DENSITY
);
3752 cmd
->create_params
.flags
=
3753 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
|
3754 BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3756 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3758 wiphy_debug(hw
->wiphy
, "Created a BA stream for %pM : tid %d\n",
3759 stream
->sta
->addr
, stream
->tid
);
3765 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
3766 struct mwl8k_ampdu_stream
*stream
)
3768 struct mwl8k_cmd_bastream
*cmd
;
3770 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3774 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3775 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3776 cmd
->action
= cpu_to_le32(MWL8K_BA_DESTROY
);
3778 cmd
->destroy_params
.ba_context
= cpu_to_le32(stream
->idx
);
3779 mwl8k_post_cmd(hw
, &cmd
->header
);
3781 wiphy_debug(hw
->wiphy
, "Deleted BA stream index %d\n", stream
->idx
);
3789 struct mwl8k_cmd_set_new_stn
{
3790 struct mwl8k_cmd_pkt header
;
3796 __le32 legacy_rates
;
3799 __le16 ht_capabilities_info
;
3800 __u8 mac_ht_param_info
;
3802 __u8 control_channel
;
3811 #define MWL8K_STA_ACTION_ADD 0
3812 #define MWL8K_STA_ACTION_REMOVE 2
3814 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw
*hw
,
3815 struct ieee80211_vif
*vif
,
3816 struct ieee80211_sta
*sta
)
3818 struct mwl8k_cmd_set_new_stn
*cmd
;
3822 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3826 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3827 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3828 cmd
->aid
= cpu_to_le16(sta
->aid
);
3829 memcpy(cmd
->mac_addr
, sta
->addr
, ETH_ALEN
);
3830 cmd
->stn_id
= cpu_to_le16(sta
->aid
);
3831 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_ADD
);
3832 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
3833 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
3835 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
3836 cmd
->legacy_rates
= cpu_to_le32(rates
);
3837 if (sta
->ht_cap
.ht_supported
) {
3838 cmd
->ht_rates
[0] = sta
->ht_cap
.mcs
.rx_mask
[0];
3839 cmd
->ht_rates
[1] = sta
->ht_cap
.mcs
.rx_mask
[1];
3840 cmd
->ht_rates
[2] = sta
->ht_cap
.mcs
.rx_mask
[2];
3841 cmd
->ht_rates
[3] = sta
->ht_cap
.mcs
.rx_mask
[3];
3842 cmd
->ht_capabilities_info
= cpu_to_le16(sta
->ht_cap
.cap
);
3843 cmd
->mac_ht_param_info
= (sta
->ht_cap
.ampdu_factor
& 3) |
3844 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
3845 cmd
->is_qos_sta
= 1;
3848 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3854 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw
*hw
,
3855 struct ieee80211_vif
*vif
)
3857 struct mwl8k_cmd_set_new_stn
*cmd
;
3860 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3864 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3865 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3866 memcpy(cmd
->mac_addr
, vif
->addr
, ETH_ALEN
);
3868 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3874 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw
*hw
,
3875 struct ieee80211_vif
*vif
, u8
*addr
)
3877 struct mwl8k_cmd_set_new_stn
*cmd
;
3880 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3884 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3885 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3886 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3887 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_REMOVE
);
3889 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3896 * CMD_UPDATE_ENCRYPTION.
3899 #define MAX_ENCR_KEY_LENGTH 16
3900 #define MIC_KEY_LENGTH 8
3902 struct mwl8k_cmd_update_encryption
{
3903 struct mwl8k_cmd_pkt header
;
3912 struct mwl8k_cmd_set_key
{
3913 struct mwl8k_cmd_pkt header
;
3922 __u8 key_material
[MAX_ENCR_KEY_LENGTH
];
3923 __u8 tkip_tx_mic_key
[MIC_KEY_LENGTH
];
3924 __u8 tkip_rx_mic_key
[MIC_KEY_LENGTH
];
3925 __le16 tkip_rsc_low
;
3926 __le32 tkip_rsc_high
;
3927 __le16 tkip_tsc_low
;
3928 __le32 tkip_tsc_high
;
3935 MWL8K_ENCR_REMOVE_KEY
,
3936 MWL8K_ENCR_SET_GROUP_KEY
,
3939 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
3940 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
3941 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
3942 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
3943 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
3951 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
3952 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
3953 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
3954 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
3955 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
3957 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw
*hw
,
3958 struct ieee80211_vif
*vif
,
3962 struct mwl8k_cmd_update_encryption
*cmd
;
3965 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3969 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
3970 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3971 cmd
->action
= cpu_to_le32(MWL8K_ENCR_ENABLE
);
3972 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3973 cmd
->encr_type
= encr_type
;
3975 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3981 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key
*cmd
,
3983 struct ieee80211_key_conf
*key
)
3985 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
3986 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3987 cmd
->length
= cpu_to_le16(sizeof(*cmd
) -
3988 offsetof(struct mwl8k_cmd_set_key
, length
));
3989 cmd
->key_id
= cpu_to_le32(key
->keyidx
);
3990 cmd
->key_len
= cpu_to_le16(key
->keylen
);
3991 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
3993 switch (key
->cipher
) {
3994 case WLAN_CIPHER_SUITE_WEP40
:
3995 case WLAN_CIPHER_SUITE_WEP104
:
3996 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_WEP
);
3997 if (key
->keyidx
== 0)
3998 cmd
->key_info
= cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY
);
4001 case WLAN_CIPHER_SUITE_TKIP
:
4002 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_TKIP
);
4003 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4004 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4005 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4006 cmd
->key_info
|= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4007 | MWL8K_KEY_FLAG_TSC_VALID
);
4009 case WLAN_CIPHER_SUITE_CCMP
:
4010 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_CCMP
);
4011 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4012 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4013 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4022 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw
*hw
,
4023 struct ieee80211_vif
*vif
,
4025 struct ieee80211_key_conf
*key
)
4027 struct mwl8k_cmd_set_key
*cmd
;
4032 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4034 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4038 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4044 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4045 action
= MWL8K_ENCR_SET_KEY
;
4047 action
= MWL8K_ENCR_SET_GROUP_KEY
;
4049 switch (key
->cipher
) {
4050 case WLAN_CIPHER_SUITE_WEP40
:
4051 case WLAN_CIPHER_SUITE_WEP104
:
4052 if (!mwl8k_vif
->wep_key_conf
[idx
].enabled
) {
4053 memcpy(mwl8k_vif
->wep_key_conf
[idx
].key
, key
,
4054 sizeof(*key
) + key
->keylen
);
4055 mwl8k_vif
->wep_key_conf
[idx
].enabled
= 1;
4058 keymlen
= key
->keylen
;
4059 action
= MWL8K_ENCR_SET_KEY
;
4061 case WLAN_CIPHER_SUITE_TKIP
:
4062 keymlen
= MAX_ENCR_KEY_LENGTH
+ 2 * MIC_KEY_LENGTH
;
4064 case WLAN_CIPHER_SUITE_CCMP
:
4065 keymlen
= key
->keylen
;
4072 memcpy(cmd
->key_material
, key
->key
, keymlen
);
4073 cmd
->action
= cpu_to_le32(action
);
4075 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4082 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw
*hw
,
4083 struct ieee80211_vif
*vif
,
4085 struct ieee80211_key_conf
*key
)
4087 struct mwl8k_cmd_set_key
*cmd
;
4089 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4091 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4095 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4099 if (key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
4100 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
)
4101 mwl8k_vif
->wep_key_conf
[key
->keyidx
].enabled
= 0;
4103 cmd
->action
= cpu_to_le32(MWL8K_ENCR_REMOVE_KEY
);
4105 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4112 static int mwl8k_set_key(struct ieee80211_hw
*hw
,
4113 enum set_key_cmd cmd_param
,
4114 struct ieee80211_vif
*vif
,
4115 struct ieee80211_sta
*sta
,
4116 struct ieee80211_key_conf
*key
)
4121 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4123 if (vif
->type
== NL80211_IFTYPE_STATION
)
4131 if (cmd_param
== SET_KEY
) {
4132 rc
= mwl8k_cmd_encryption_set_key(hw
, vif
, addr
, key
);
4136 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
)
4137 || (key
->cipher
== WLAN_CIPHER_SUITE_WEP104
))
4138 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_WEP
;
4140 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED
;
4142 rc
= mwl8k_cmd_update_encryption_enable(hw
, vif
, addr
,
4147 mwl8k_vif
->is_hw_crypto_enabled
= true;
4150 rc
= mwl8k_cmd_encryption_remove_key(hw
, vif
, addr
, key
);
4162 struct ewc_ht_info
{
4168 struct peer_capability_info
{
4169 /* Peer type - AP vs. STA. */
4172 /* Basic 802.11 capabilities from assoc resp. */
4175 /* Set if peer supports 802.11n high throughput (HT). */
4178 /* Valid if HT is supported. */
4180 __u8 extended_ht_caps
;
4181 struct ewc_ht_info ewc_info
;
4183 /* Legacy rate table. Intersection of our rates and peer rates. */
4184 __u8 legacy_rates
[12];
4186 /* HT rate table. Intersection of our rates and peer rates. */
4190 /* If set, interoperability mode, no proprietary extensions. */
4194 __le16 amsdu_enabled
;
4197 struct mwl8k_cmd_update_stadb
{
4198 struct mwl8k_cmd_pkt header
;
4200 /* See STADB_ACTION_TYPE */
4203 /* Peer MAC address */
4204 __u8 peer_addr
[ETH_ALEN
];
4208 /* Peer info - valid during add/update. */
4209 struct peer_capability_info peer_info
;
4212 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4213 #define MWL8K_STA_DB_DEL_ENTRY 2
4215 /* Peer Entry flags - used to define the type of the peer node */
4216 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4218 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw
*hw
,
4219 struct ieee80211_vif
*vif
,
4220 struct ieee80211_sta
*sta
)
4222 struct mwl8k_cmd_update_stadb
*cmd
;
4223 struct peer_capability_info
*p
;
4227 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4231 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4232 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4233 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY
);
4234 memcpy(cmd
->peer_addr
, sta
->addr
, ETH_ALEN
);
4236 p
= &cmd
->peer_info
;
4237 p
->peer_type
= MWL8K_PEER_TYPE_ACCESSPOINT
;
4238 p
->basic_caps
= cpu_to_le16(vif
->bss_conf
.assoc_capability
);
4239 p
->ht_support
= sta
->ht_cap
.ht_supported
;
4240 p
->ht_caps
= cpu_to_le16(sta
->ht_cap
.cap
);
4241 p
->extended_ht_caps
= (sta
->ht_cap
.ampdu_factor
& 3) |
4242 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
4243 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
4244 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
4246 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4247 legacy_rate_mask_to_array(p
->legacy_rates
, rates
);
4248 memcpy(p
->ht_rates
, sta
->ht_cap
.mcs
.rx_mask
, 16);
4250 p
->amsdu_enabled
= 0;
4252 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4255 return rc
? rc
: p
->station_id
;
4258 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw
*hw
,
4259 struct ieee80211_vif
*vif
, u8
*addr
)
4261 struct mwl8k_cmd_update_stadb
*cmd
;
4264 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4268 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4269 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4270 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY
);
4271 memcpy(cmd
->peer_addr
, addr
, ETH_ALEN
);
4273 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4281 * Interrupt handling.
4283 static irqreturn_t
mwl8k_interrupt(int irq
, void *dev_id
)
4285 struct ieee80211_hw
*hw
= dev_id
;
4286 struct mwl8k_priv
*priv
= hw
->priv
;
4289 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4293 if (status
& MWL8K_A2H_INT_TX_DONE
) {
4294 status
&= ~MWL8K_A2H_INT_TX_DONE
;
4295 tasklet_schedule(&priv
->poll_tx_task
);
4298 if (status
& MWL8K_A2H_INT_RX_READY
) {
4299 status
&= ~MWL8K_A2H_INT_RX_READY
;
4300 tasklet_schedule(&priv
->poll_rx_task
);
4303 if (status
& MWL8K_A2H_INT_BA_WATCHDOG
) {
4304 status
&= ~MWL8K_A2H_INT_BA_WATCHDOG
;
4305 ieee80211_queue_work(hw
, &priv
->watchdog_ba_handle
);
4309 iowrite32(~status
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4311 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
4312 if (priv
->hostcmd_wait
!= NULL
)
4313 complete(priv
->hostcmd_wait
);
4316 if (status
& MWL8K_A2H_INT_QUEUE_EMPTY
) {
4317 if (!mutex_is_locked(&priv
->fw_mutex
) &&
4318 priv
->radio_on
&& priv
->pending_tx_pkts
)
4319 mwl8k_tx_start(priv
);
4325 static void mwl8k_tx_poll(unsigned long data
)
4327 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4328 struct mwl8k_priv
*priv
= hw
->priv
;
4334 spin_lock_bh(&priv
->tx_lock
);
4336 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4337 limit
-= mwl8k_txq_reclaim(hw
, i
, limit
, 0);
4339 if (!priv
->pending_tx_pkts
&& priv
->tx_wait
!= NULL
) {
4340 complete(priv
->tx_wait
);
4341 priv
->tx_wait
= NULL
;
4344 spin_unlock_bh(&priv
->tx_lock
);
4347 writel(~MWL8K_A2H_INT_TX_DONE
,
4348 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4350 tasklet_schedule(&priv
->poll_tx_task
);
4354 static void mwl8k_rx_poll(unsigned long data
)
4356 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4357 struct mwl8k_priv
*priv
= hw
->priv
;
4361 limit
-= rxq_process(hw
, 0, limit
);
4362 limit
-= rxq_refill(hw
, 0, limit
);
4365 writel(~MWL8K_A2H_INT_RX_READY
,
4366 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4368 tasklet_schedule(&priv
->poll_rx_task
);
4374 * Core driver operations.
4376 static void mwl8k_tx(struct ieee80211_hw
*hw
,
4377 struct ieee80211_tx_control
*control
,
4378 struct sk_buff
*skb
)
4380 struct mwl8k_priv
*priv
= hw
->priv
;
4381 int index
= skb_get_queue_mapping(skb
);
4383 if (!priv
->radio_on
) {
4384 wiphy_debug(hw
->wiphy
,
4385 "dropped TX frame since radio disabled\n");
4390 mwl8k_txq_xmit(hw
, index
, control
->sta
, skb
);
4393 static int mwl8k_start(struct ieee80211_hw
*hw
)
4395 struct mwl8k_priv
*priv
= hw
->priv
;
4398 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
4399 IRQF_SHARED
, MWL8K_NAME
, hw
);
4402 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
4405 priv
->irq
= priv
->pdev
->irq
;
4407 /* Enable TX reclaim and RX tasklets. */
4408 tasklet_enable(&priv
->poll_tx_task
);
4409 tasklet_enable(&priv
->poll_rx_task
);
4411 /* Enable interrupts */
4412 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4413 iowrite32(MWL8K_A2H_EVENTS
,
4414 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4416 rc
= mwl8k_fw_lock(hw
);
4418 rc
= mwl8k_cmd_radio_enable(hw
);
4422 rc
= mwl8k_cmd_enable_sniffer(hw
, 0);
4425 rc
= mwl8k_cmd_set_pre_scan(hw
);
4428 rc
= mwl8k_cmd_set_post_scan(hw
,
4429 "\x00\x00\x00\x00\x00\x00");
4433 rc
= mwl8k_cmd_set_rateadapt_mode(hw
, 0);
4436 rc
= mwl8k_cmd_set_wmm_mode(hw
, 0);
4438 mwl8k_fw_unlock(hw
);
4442 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4443 free_irq(priv
->pdev
->irq
, hw
);
4445 tasklet_disable(&priv
->poll_tx_task
);
4446 tasklet_disable(&priv
->poll_rx_task
);
4452 static void mwl8k_stop(struct ieee80211_hw
*hw
)
4454 struct mwl8k_priv
*priv
= hw
->priv
;
4457 if (!priv
->hw_restart_in_progress
)
4458 mwl8k_cmd_radio_disable(hw
);
4460 ieee80211_stop_queues(hw
);
4462 /* Disable interrupts */
4463 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4464 if (priv
->irq
!= -1) {
4465 free_irq(priv
->pdev
->irq
, hw
);
4469 /* Stop finalize join worker */
4470 cancel_work_sync(&priv
->finalize_join_worker
);
4471 cancel_work_sync(&priv
->watchdog_ba_handle
);
4472 if (priv
->beacon_skb
!= NULL
)
4473 dev_kfree_skb(priv
->beacon_skb
);
4475 /* Stop TX reclaim and RX tasklets. */
4476 tasklet_disable(&priv
->poll_tx_task
);
4477 tasklet_disable(&priv
->poll_rx_task
);
4479 /* Return all skbs to mac80211 */
4480 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4481 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
4484 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
);
4486 static int mwl8k_add_interface(struct ieee80211_hw
*hw
,
4487 struct ieee80211_vif
*vif
)
4489 struct mwl8k_priv
*priv
= hw
->priv
;
4490 struct mwl8k_vif
*mwl8k_vif
;
4491 u32 macids_supported
;
4493 struct mwl8k_device_info
*di
;
4496 * Reject interface creation if sniffer mode is active, as
4497 * STA operation is mutually exclusive with hardware sniffer
4498 * mode. (Sniffer mode is only used on STA firmware.)
4500 if (priv
->sniffer_enabled
) {
4501 wiphy_info(hw
->wiphy
,
4502 "unable to create STA interface because sniffer mode is enabled\n");
4506 di
= priv
->device_info
;
4507 switch (vif
->type
) {
4508 case NL80211_IFTYPE_AP
:
4509 if (!priv
->ap_fw
&& di
->fw_image_ap
) {
4510 /* we must load the ap fw to meet this request */
4511 if (!list_empty(&priv
->vif_list
))
4513 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4517 macids_supported
= priv
->ap_macids_supported
;
4519 case NL80211_IFTYPE_STATION
:
4520 if (priv
->ap_fw
&& di
->fw_image_sta
) {
4521 /* we must load the sta fw to meet this request */
4522 if (!list_empty(&priv
->vif_list
))
4524 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4528 macids_supported
= priv
->sta_macids_supported
;
4534 macid
= ffs(macids_supported
& ~priv
->macids_used
);
4538 /* Setup driver private area. */
4539 mwl8k_vif
= MWL8K_VIF(vif
);
4540 memset(mwl8k_vif
, 0, sizeof(*mwl8k_vif
));
4541 mwl8k_vif
->vif
= vif
;
4542 mwl8k_vif
->macid
= macid
;
4543 mwl8k_vif
->seqno
= 0;
4544 memcpy(mwl8k_vif
->bssid
, vif
->addr
, ETH_ALEN
);
4545 mwl8k_vif
->is_hw_crypto_enabled
= false;
4547 /* Set the mac address. */
4548 mwl8k_cmd_set_mac_addr(hw
, vif
, vif
->addr
);
4551 mwl8k_cmd_set_new_stn_add_self(hw
, vif
);
4553 priv
->macids_used
|= 1 << mwl8k_vif
->macid
;
4554 list_add_tail(&mwl8k_vif
->list
, &priv
->vif_list
);
4559 static void mwl8k_remove_vif(struct mwl8k_priv
*priv
, struct mwl8k_vif
*vif
)
4561 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4562 if (!priv
->macids_used
)
4565 priv
->macids_used
&= ~(1 << vif
->macid
);
4566 list_del(&vif
->list
);
4569 static void mwl8k_remove_interface(struct ieee80211_hw
*hw
,
4570 struct ieee80211_vif
*vif
)
4572 struct mwl8k_priv
*priv
= hw
->priv
;
4573 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4576 mwl8k_cmd_set_new_stn_del(hw
, vif
, vif
->addr
);
4578 mwl8k_cmd_del_mac_addr(hw
, vif
, vif
->addr
);
4580 mwl8k_remove_vif(priv
, mwl8k_vif
);
4583 static void mwl8k_hw_restart_work(struct work_struct
*work
)
4585 struct mwl8k_priv
*priv
=
4586 container_of(work
, struct mwl8k_priv
, fw_reload
);
4587 struct ieee80211_hw
*hw
= priv
->hw
;
4588 struct mwl8k_device_info
*di
;
4591 /* If some command is waiting for a response, clear it */
4592 if (priv
->hostcmd_wait
!= NULL
) {
4593 complete(priv
->hostcmd_wait
);
4594 priv
->hostcmd_wait
= NULL
;
4597 priv
->hw_restart_owner
= current
;
4598 di
= priv
->device_info
;
4602 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4604 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4609 priv
->hw_restart_owner
= NULL
;
4610 priv
->hw_restart_in_progress
= false;
4613 * This unlock will wake up the queues and
4614 * also opens the command path for other
4617 mwl8k_fw_unlock(hw
);
4619 ieee80211_restart_hw(hw
);
4621 wiphy_err(hw
->wiphy
, "Firmware restarted successfully\n");
4625 mwl8k_fw_unlock(hw
);
4627 wiphy_err(hw
->wiphy
, "Firmware restart failed\n");
4630 static int mwl8k_config(struct ieee80211_hw
*hw
, u32 changed
)
4632 struct ieee80211_conf
*conf
= &hw
->conf
;
4633 struct mwl8k_priv
*priv
= hw
->priv
;
4636 if (conf
->flags
& IEEE80211_CONF_IDLE
) {
4637 mwl8k_cmd_radio_disable(hw
);
4641 rc
= mwl8k_fw_lock(hw
);
4645 rc
= mwl8k_cmd_radio_enable(hw
);
4649 rc
= mwl8k_cmd_set_rf_channel(hw
, conf
);
4653 if (conf
->power_level
> 18)
4654 conf
->power_level
= 18;
4658 if (conf
->flags
& IEEE80211_CONF_CHANGE_POWER
) {
4659 rc
= mwl8k_cmd_tx_power(hw
, conf
, conf
->power_level
);
4664 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_RX
, 0x3);
4666 wiphy_warn(hw
->wiphy
, "failed to set # of RX antennas");
4667 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_TX
, 0x7);
4669 wiphy_warn(hw
->wiphy
, "failed to set # of TX antennas");
4672 rc
= mwl8k_cmd_rf_tx_power(hw
, conf
->power_level
);
4675 rc
= mwl8k_cmd_mimo_config(hw
, 0x7, 0x7);
4679 mwl8k_fw_unlock(hw
);
4685 mwl8k_bss_info_changed_sta(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4686 struct ieee80211_bss_conf
*info
, u32 changed
)
4688 struct mwl8k_priv
*priv
= hw
->priv
;
4689 u32 ap_legacy_rates
= 0;
4690 u8 ap_mcs_rates
[16];
4693 if (mwl8k_fw_lock(hw
))
4697 * No need to capture a beacon if we're no longer associated.
4699 if ((changed
& BSS_CHANGED_ASSOC
) && !vif
->bss_conf
.assoc
)
4700 priv
->capture_beacon
= false;
4703 * Get the AP's legacy and MCS rates.
4705 if (vif
->bss_conf
.assoc
) {
4706 struct ieee80211_sta
*ap
;
4710 ap
= ieee80211_find_sta(vif
, vif
->bss_conf
.bssid
);
4716 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
) {
4717 ap_legacy_rates
= ap
->supp_rates
[IEEE80211_BAND_2GHZ
];
4720 ap
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4722 memcpy(ap_mcs_rates
, ap
->ht_cap
.mcs
.rx_mask
, 16);
4727 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
) {
4728 rc
= mwl8k_cmd_set_rate(hw
, vif
, ap_legacy_rates
, ap_mcs_rates
);
4732 rc
= mwl8k_cmd_use_fixed_rate_sta(hw
);
4737 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4738 rc
= mwl8k_set_radio_preamble(hw
,
4739 vif
->bss_conf
.use_short_preamble
);
4744 if (changed
& BSS_CHANGED_ERP_SLOT
) {
4745 rc
= mwl8k_cmd_set_slot(hw
, vif
->bss_conf
.use_short_slot
);
4750 if (vif
->bss_conf
.assoc
&&
4751 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_ERP_CTS_PROT
|
4753 rc
= mwl8k_cmd_set_aid(hw
, vif
, ap_legacy_rates
);
4758 if (vif
->bss_conf
.assoc
&&
4759 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_BEACON_INT
))) {
4761 * Finalize the join. Tell rx handler to process
4762 * next beacon from our BSSID.
4764 memcpy(priv
->capture_bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
4765 priv
->capture_beacon
= true;
4769 mwl8k_fw_unlock(hw
);
4773 mwl8k_bss_info_changed_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4774 struct ieee80211_bss_conf
*info
, u32 changed
)
4778 if (mwl8k_fw_lock(hw
))
4781 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4782 rc
= mwl8k_set_radio_preamble(hw
,
4783 vif
->bss_conf
.use_short_preamble
);
4788 if (changed
& BSS_CHANGED_BASIC_RATES
) {
4793 * Use lowest supported basic rate for multicasts
4794 * and management frames (such as probe responses --
4795 * beacons will always go out at 1 Mb/s).
4797 idx
= ffs(vif
->bss_conf
.basic_rates
);
4801 if (hw
->conf
.channel
->band
== IEEE80211_BAND_2GHZ
)
4802 rate
= mwl8k_rates_24
[idx
].hw_value
;
4804 rate
= mwl8k_rates_50
[idx
].hw_value
;
4806 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
4809 if (changed
& (BSS_CHANGED_BEACON_INT
| BSS_CHANGED_BEACON
)) {
4810 struct sk_buff
*skb
;
4812 skb
= ieee80211_beacon_get(hw
, vif
);
4814 mwl8k_cmd_set_beacon(hw
, vif
, skb
->data
, skb
->len
);
4819 if (changed
& BSS_CHANGED_BEACON_ENABLED
)
4820 mwl8k_cmd_bss_start(hw
, vif
, info
->enable_beacon
);
4823 mwl8k_fw_unlock(hw
);
4827 mwl8k_bss_info_changed(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4828 struct ieee80211_bss_conf
*info
, u32 changed
)
4830 struct mwl8k_priv
*priv
= hw
->priv
;
4833 mwl8k_bss_info_changed_sta(hw
, vif
, info
, changed
);
4835 mwl8k_bss_info_changed_ap(hw
, vif
, info
, changed
);
4838 static u64
mwl8k_prepare_multicast(struct ieee80211_hw
*hw
,
4839 struct netdev_hw_addr_list
*mc_list
)
4841 struct mwl8k_cmd_pkt
*cmd
;
4844 * Synthesize and return a command packet that programs the
4845 * hardware multicast address filter. At this point we don't
4846 * know whether FIF_ALLMULTI is being requested, but if it is,
4847 * we'll end up throwing this packet away and creating a new
4848 * one in mwl8k_configure_filter().
4850 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 0, mc_list
);
4852 return (unsigned long)cmd
;
4856 mwl8k_configure_filter_sniffer(struct ieee80211_hw
*hw
,
4857 unsigned int changed_flags
,
4858 unsigned int *total_flags
)
4860 struct mwl8k_priv
*priv
= hw
->priv
;
4863 * Hardware sniffer mode is mutually exclusive with STA
4864 * operation, so refuse to enable sniffer mode if a STA
4865 * interface is active.
4867 if (!list_empty(&priv
->vif_list
)) {
4868 if (net_ratelimit())
4869 wiphy_info(hw
->wiphy
,
4870 "not enabling sniffer mode because STA interface is active\n");
4874 if (!priv
->sniffer_enabled
) {
4875 if (mwl8k_cmd_enable_sniffer(hw
, 1))
4877 priv
->sniffer_enabled
= true;
4880 *total_flags
&= FIF_PROMISC_IN_BSS
| FIF_ALLMULTI
|
4881 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
|
4887 static struct mwl8k_vif
*mwl8k_first_vif(struct mwl8k_priv
*priv
)
4889 if (!list_empty(&priv
->vif_list
))
4890 return list_entry(priv
->vif_list
.next
, struct mwl8k_vif
, list
);
4895 static void mwl8k_configure_filter(struct ieee80211_hw
*hw
,
4896 unsigned int changed_flags
,
4897 unsigned int *total_flags
,
4900 struct mwl8k_priv
*priv
= hw
->priv
;
4901 struct mwl8k_cmd_pkt
*cmd
= (void *)(unsigned long)multicast
;
4904 * AP firmware doesn't allow fine-grained control over
4905 * the receive filter.
4908 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
4914 * Enable hardware sniffer mode if FIF_CONTROL or
4915 * FIF_OTHER_BSS is requested.
4917 if (*total_flags
& (FIF_CONTROL
| FIF_OTHER_BSS
) &&
4918 mwl8k_configure_filter_sniffer(hw
, changed_flags
, total_flags
)) {
4923 /* Clear unsupported feature flags */
4924 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
4926 if (mwl8k_fw_lock(hw
)) {
4931 if (priv
->sniffer_enabled
) {
4932 mwl8k_cmd_enable_sniffer(hw
, 0);
4933 priv
->sniffer_enabled
= false;
4936 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
4937 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
) {
4939 * Disable the BSS filter.
4941 mwl8k_cmd_set_pre_scan(hw
);
4943 struct mwl8k_vif
*mwl8k_vif
;
4947 * Enable the BSS filter.
4949 * If there is an active STA interface, use that
4950 * interface's BSSID, otherwise use a dummy one
4951 * (where the OUI part needs to be nonzero for
4952 * the BSSID to be accepted by POST_SCAN).
4954 mwl8k_vif
= mwl8k_first_vif(priv
);
4955 if (mwl8k_vif
!= NULL
)
4956 bssid
= mwl8k_vif
->vif
->bss_conf
.bssid
;
4958 bssid
= "\x01\x00\x00\x00\x00\x00";
4960 mwl8k_cmd_set_post_scan(hw
, bssid
);
4965 * If FIF_ALLMULTI is being requested, throw away the command
4966 * packet that ->prepare_multicast() built and replace it with
4967 * a command packet that enables reception of all multicast
4970 if (*total_flags
& FIF_ALLMULTI
) {
4972 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 1, NULL
);
4976 mwl8k_post_cmd(hw
, cmd
);
4980 mwl8k_fw_unlock(hw
);
4983 static int mwl8k_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
4985 return mwl8k_cmd_set_rts_threshold(hw
, value
);
4988 static int mwl8k_sta_remove(struct ieee80211_hw
*hw
,
4989 struct ieee80211_vif
*vif
,
4990 struct ieee80211_sta
*sta
)
4992 struct mwl8k_priv
*priv
= hw
->priv
;
4995 return mwl8k_cmd_set_new_stn_del(hw
, vif
, sta
->addr
);
4997 return mwl8k_cmd_update_stadb_del(hw
, vif
, sta
->addr
);
5000 static int mwl8k_sta_add(struct ieee80211_hw
*hw
,
5001 struct ieee80211_vif
*vif
,
5002 struct ieee80211_sta
*sta
)
5004 struct mwl8k_priv
*priv
= hw
->priv
;
5007 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
5008 struct ieee80211_key_conf
*key
;
5011 ret
= mwl8k_cmd_update_stadb_add(hw
, vif
, sta
);
5013 MWL8K_STA(sta
)->peer_id
= ret
;
5014 if (sta
->ht_cap
.ht_supported
)
5015 MWL8K_STA(sta
)->is_ampdu_allowed
= true;
5020 ret
= mwl8k_cmd_set_new_stn_add(hw
, vif
, sta
);
5023 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
5024 key
= IEEE80211_KEY_CONF(mwl8k_vif
->wep_key_conf
[i
].key
);
5025 if (mwl8k_vif
->wep_key_conf
[i
].enabled
)
5026 mwl8k_set_key(hw
, SET_KEY
, vif
, sta
, key
);
5031 static int mwl8k_conf_tx(struct ieee80211_hw
*hw
,
5032 struct ieee80211_vif
*vif
, u16 queue
,
5033 const struct ieee80211_tx_queue_params
*params
)
5035 struct mwl8k_priv
*priv
= hw
->priv
;
5038 rc
= mwl8k_fw_lock(hw
);
5040 BUG_ON(queue
> MWL8K_TX_WMM_QUEUES
- 1);
5041 memcpy(&priv
->wmm_params
[queue
], params
, sizeof(*params
));
5043 if (!priv
->wmm_enabled
)
5044 rc
= mwl8k_cmd_set_wmm_mode(hw
, 1);
5047 int q
= MWL8K_TX_WMM_QUEUES
- 1 - queue
;
5048 rc
= mwl8k_cmd_set_edca_params(hw
, q
,
5055 mwl8k_fw_unlock(hw
);
5061 static int mwl8k_get_stats(struct ieee80211_hw
*hw
,
5062 struct ieee80211_low_level_stats
*stats
)
5064 return mwl8k_cmd_get_stat(hw
, stats
);
5067 static int mwl8k_get_survey(struct ieee80211_hw
*hw
, int idx
,
5068 struct survey_info
*survey
)
5070 struct mwl8k_priv
*priv
= hw
->priv
;
5071 struct ieee80211_conf
*conf
= &hw
->conf
;
5076 survey
->channel
= conf
->channel
;
5077 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
5078 survey
->noise
= priv
->noise
;
5083 #define MAX_AMPDU_ATTEMPTS 5
5086 mwl8k_ampdu_action(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5087 enum ieee80211_ampdu_mlme_action action
,
5088 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
5093 struct mwl8k_priv
*priv
= hw
->priv
;
5094 struct mwl8k_ampdu_stream
*stream
;
5095 u8
*addr
= sta
->addr
;
5096 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
5098 if (!(hw
->flags
& IEEE80211_HW_AMPDU_AGGREGATION
))
5101 spin_lock(&priv
->stream_lock
);
5102 stream
= mwl8k_lookup_stream(hw
, addr
, tid
);
5105 case IEEE80211_AMPDU_RX_START
:
5106 case IEEE80211_AMPDU_RX_STOP
:
5108 case IEEE80211_AMPDU_TX_START
:
5109 /* By the time we get here the hw queues may contain outgoing
5110 * packets for this RA/TID that are not part of this BA
5111 * session. The hw will assign sequence numbers to these
5112 * packets as they go out. So if we query the hw for its next
5113 * sequence number and use that for the SSN here, it may end up
5114 * being wrong, which will lead to sequence number mismatch at
5115 * the recipient. To avoid this, we reset the sequence number
5116 * to O for the first MPDU in this BA stream.
5119 if (stream
== NULL
) {
5120 /* This means that somebody outside this driver called
5121 * ieee80211_start_tx_ba_session. This is unexpected
5122 * because we do our own rate control. Just warn and
5125 wiphy_warn(hw
->wiphy
, "Unexpected call to %s. "
5126 "Proceeding anyway.\n", __func__
);
5127 stream
= mwl8k_add_stream(hw
, sta
, tid
);
5129 if (stream
== NULL
) {
5130 wiphy_debug(hw
->wiphy
, "no free AMPDU streams\n");
5134 stream
->state
= AMPDU_STREAM_IN_PROGRESS
;
5136 /* Release the lock before we do the time consuming stuff */
5137 spin_unlock(&priv
->stream_lock
);
5138 for (i
= 0; i
< MAX_AMPDU_ATTEMPTS
; i
++) {
5140 /* Check if link is still valid */
5141 if (!sta_info
->is_ampdu_allowed
) {
5142 spin_lock(&priv
->stream_lock
);
5143 mwl8k_remove_stream(hw
, stream
);
5144 spin_unlock(&priv
->stream_lock
);
5148 rc
= mwl8k_check_ba(hw
, stream
, vif
);
5150 /* If HW restart is in progress mwl8k_post_cmd will
5151 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5154 if (!rc
|| rc
== -EBUSY
)
5157 * HW queues take time to be flushed, give them
5163 spin_lock(&priv
->stream_lock
);
5165 wiphy_err(hw
->wiphy
, "Stream for tid %d busy after %d"
5166 " attempts\n", tid
, MAX_AMPDU_ATTEMPTS
);
5167 mwl8k_remove_stream(hw
, stream
);
5171 ieee80211_start_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5173 case IEEE80211_AMPDU_TX_STOP
:
5175 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
5176 spin_unlock(&priv
->stream_lock
);
5177 mwl8k_destroy_ba(hw
, stream
);
5178 spin_lock(&priv
->stream_lock
);
5180 mwl8k_remove_stream(hw
, stream
);
5182 ieee80211_stop_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5184 case IEEE80211_AMPDU_TX_OPERATIONAL
:
5185 BUG_ON(stream
== NULL
);
5186 BUG_ON(stream
->state
!= AMPDU_STREAM_IN_PROGRESS
);
5187 spin_unlock(&priv
->stream_lock
);
5188 rc
= mwl8k_create_ba(hw
, stream
, buf_size
, vif
);
5189 spin_lock(&priv
->stream_lock
);
5191 stream
->state
= AMPDU_STREAM_ACTIVE
;
5193 spin_unlock(&priv
->stream_lock
);
5194 mwl8k_destroy_ba(hw
, stream
);
5195 spin_lock(&priv
->stream_lock
);
5196 wiphy_debug(hw
->wiphy
,
5197 "Failed adding stream for sta %pM tid %d\n",
5199 mwl8k_remove_stream(hw
, stream
);
5207 spin_unlock(&priv
->stream_lock
);
5211 static const struct ieee80211_ops mwl8k_ops
= {
5213 .start
= mwl8k_start
,
5215 .add_interface
= mwl8k_add_interface
,
5216 .remove_interface
= mwl8k_remove_interface
,
5217 .config
= mwl8k_config
,
5218 .bss_info_changed
= mwl8k_bss_info_changed
,
5219 .prepare_multicast
= mwl8k_prepare_multicast
,
5220 .configure_filter
= mwl8k_configure_filter
,
5221 .set_key
= mwl8k_set_key
,
5222 .set_rts_threshold
= mwl8k_set_rts_threshold
,
5223 .sta_add
= mwl8k_sta_add
,
5224 .sta_remove
= mwl8k_sta_remove
,
5225 .conf_tx
= mwl8k_conf_tx
,
5226 .get_stats
= mwl8k_get_stats
,
5227 .get_survey
= mwl8k_get_survey
,
5228 .ampdu_action
= mwl8k_ampdu_action
,
5231 static void mwl8k_finalize_join_worker(struct work_struct
*work
)
5233 struct mwl8k_priv
*priv
=
5234 container_of(work
, struct mwl8k_priv
, finalize_join_worker
);
5235 struct sk_buff
*skb
= priv
->beacon_skb
;
5236 struct ieee80211_mgmt
*mgmt
= (void *)skb
->data
;
5237 int len
= skb
->len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
5238 const u8
*tim
= cfg80211_find_ie(WLAN_EID_TIM
,
5239 mgmt
->u
.beacon
.variable
, len
);
5240 int dtim_period
= 1;
5242 if (tim
&& tim
[1] >= 2)
5243 dtim_period
= tim
[3];
5245 mwl8k_cmd_finalize_join(priv
->hw
, skb
->data
, skb
->len
, dtim_period
);
5248 priv
->beacon_skb
= NULL
;
5257 #define MWL8K_8366_AP_FW_API 2
5258 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5259 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5261 static struct mwl8k_device_info mwl8k_info_tbl
[] = {
5263 .part_name
= "88w8363",
5264 .helper_image
= "mwl8k/helper_8363.fw",
5265 .fw_image_sta
= "mwl8k/fmimage_8363.fw",
5268 .part_name
= "88w8687",
5269 .helper_image
= "mwl8k/helper_8687.fw",
5270 .fw_image_sta
= "mwl8k/fmimage_8687.fw",
5273 .part_name
= "88w8366",
5274 .helper_image
= "mwl8k/helper_8366.fw",
5275 .fw_image_sta
= "mwl8k/fmimage_8366.fw",
5276 .fw_image_ap
= MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
),
5277 .fw_api_ap
= MWL8K_8366_AP_FW_API
,
5278 .ap_rxd_ops
= &rxd_8366_ap_ops
,
5282 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5283 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5284 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5285 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5286 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5287 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5288 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
));
5290 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table
) = {
5291 { PCI_VDEVICE(MARVELL
, 0x2a0a), .driver_data
= MWL8363
, },
5292 { PCI_VDEVICE(MARVELL
, 0x2a0c), .driver_data
= MWL8363
, },
5293 { PCI_VDEVICE(MARVELL
, 0x2a24), .driver_data
= MWL8363
, },
5294 { PCI_VDEVICE(MARVELL
, 0x2a2b), .driver_data
= MWL8687
, },
5295 { PCI_VDEVICE(MARVELL
, 0x2a30), .driver_data
= MWL8687
, },
5296 { PCI_VDEVICE(MARVELL
, 0x2a40), .driver_data
= MWL8366
, },
5297 { PCI_VDEVICE(MARVELL
, 0x2a43), .driver_data
= MWL8366
, },
5300 MODULE_DEVICE_TABLE(pci
, mwl8k_pci_id_table
);
5302 static int mwl8k_request_alt_fw(struct mwl8k_priv
*priv
)
5305 printk(KERN_ERR
"%s: Error requesting preferred fw %s.\n"
5306 "Trying alternative firmware %s\n", pci_name(priv
->pdev
),
5307 priv
->fw_pref
, priv
->fw_alt
);
5308 rc
= mwl8k_request_fw(priv
, priv
->fw_alt
, &priv
->fw_ucode
, true);
5310 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5311 pci_name(priv
->pdev
), priv
->fw_alt
);
5317 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
);
5318 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
)
5320 struct mwl8k_priv
*priv
= context
;
5321 struct mwl8k_device_info
*di
= priv
->device_info
;
5324 switch (priv
->fw_state
) {
5327 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
5328 pci_name(priv
->pdev
), di
->helper_image
);
5331 priv
->fw_helper
= fw
;
5332 rc
= mwl8k_request_fw(priv
, priv
->fw_pref
, &priv
->fw_ucode
,
5334 if (rc
&& priv
->fw_alt
) {
5335 rc
= mwl8k_request_alt_fw(priv
);
5338 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5342 priv
->fw_state
= FW_STATE_LOADING_PREF
;
5345 case FW_STATE_LOADING_PREF
:
5348 rc
= mwl8k_request_alt_fw(priv
);
5351 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5355 priv
->fw_ucode
= fw
;
5356 rc
= mwl8k_firmware_load_success(priv
);
5360 complete(&priv
->firmware_loading_complete
);
5364 case FW_STATE_LOADING_ALT
:
5366 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5367 pci_name(priv
->pdev
), di
->helper_image
);
5370 priv
->fw_ucode
= fw
;
5371 rc
= mwl8k_firmware_load_success(priv
);
5375 complete(&priv
->firmware_loading_complete
);
5379 printk(KERN_ERR
"%s: Unexpected firmware loading state: %d\n",
5380 MWL8K_NAME
, priv
->fw_state
);
5387 priv
->fw_state
= FW_STATE_ERROR
;
5388 complete(&priv
->firmware_loading_complete
);
5389 device_release_driver(&priv
->pdev
->dev
);
5390 mwl8k_release_firmware(priv
);
5393 #define MAX_RESTART_ATTEMPTS 1
5394 static int mwl8k_init_firmware(struct ieee80211_hw
*hw
, char *fw_image
,
5397 struct mwl8k_priv
*priv
= hw
->priv
;
5399 int count
= MAX_RESTART_ATTEMPTS
;
5402 /* Reset firmware and hardware */
5403 mwl8k_hw_reset(priv
);
5405 /* Ask userland hotplug daemon for the device firmware */
5406 rc
= mwl8k_request_firmware(priv
, fw_image
, nowait
);
5408 wiphy_err(hw
->wiphy
, "Firmware files not found\n");
5415 /* Load firmware into hardware */
5416 rc
= mwl8k_load_firmware(hw
);
5418 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5420 /* Reclaim memory once firmware is successfully loaded */
5421 mwl8k_release_firmware(priv
);
5424 /* FW did not start successfully;
5425 * lets try one more time
5428 wiphy_err(hw
->wiphy
, "Trying to reload the firmware again\n");
5436 static int mwl8k_init_txqs(struct ieee80211_hw
*hw
)
5438 struct mwl8k_priv
*priv
= hw
->priv
;
5442 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
5443 rc
= mwl8k_txq_init(hw
, i
);
5447 iowrite32(priv
->txq
[i
].txd_dma
,
5448 priv
->sram
+ priv
->txq_offset
[i
]);
5453 /* initialize hw after successfully loading a firmware image */
5454 static int mwl8k_probe_hw(struct ieee80211_hw
*hw
)
5456 struct mwl8k_priv
*priv
= hw
->priv
;
5461 priv
->rxd_ops
= priv
->device_info
->ap_rxd_ops
;
5462 if (priv
->rxd_ops
== NULL
) {
5463 wiphy_err(hw
->wiphy
,
5464 "Driver does not have AP firmware image support for this hardware\n");
5465 goto err_stop_firmware
;
5468 priv
->rxd_ops
= &rxd_sta_ops
;
5471 priv
->sniffer_enabled
= false;
5472 priv
->wmm_enabled
= false;
5473 priv
->pending_tx_pkts
= 0;
5475 rc
= mwl8k_rxq_init(hw
, 0);
5477 goto err_stop_firmware
;
5478 rxq_refill(hw
, 0, INT_MAX
);
5480 /* For the sta firmware, we need to know the dma addresses of tx queues
5481 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5482 * prior to issuing this command. But for the AP case, we learn the
5483 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5484 * case we must initialize the tx queues after.
5486 priv
->num_ampdu_queues
= 0;
5488 rc
= mwl8k_init_txqs(hw
);
5490 goto err_free_queues
;
5493 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
5494 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5495 iowrite32(MWL8K_A2H_INT_TX_DONE
|MWL8K_A2H_INT_RX_READY
|
5496 MWL8K_A2H_INT_BA_WATCHDOG
,
5497 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL
);
5498 iowrite32(MWL8K_A2H_INT_OPC_DONE
,
5499 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
5501 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
5502 IRQF_SHARED
, MWL8K_NAME
, hw
);
5504 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
5505 goto err_free_queues
;
5509 * When hw restart is requested,
5510 * mac80211 will take care of clearing
5511 * the ampdu streams, so do not clear
5512 * the ampdu state here
5514 if (!priv
->hw_restart_in_progress
)
5515 memset(priv
->ampdu
, 0, sizeof(priv
->ampdu
));
5518 * Temporarily enable interrupts. Initial firmware host
5519 * commands use interrupts and avoid polling. Disable
5520 * interrupts when done.
5522 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5524 /* Get config data, mac addrs etc */
5526 rc
= mwl8k_cmd_get_hw_spec_ap(hw
);
5528 rc
= mwl8k_init_txqs(hw
);
5530 rc
= mwl8k_cmd_set_hw_spec(hw
);
5532 rc
= mwl8k_cmd_get_hw_spec_sta(hw
);
5535 wiphy_err(hw
->wiphy
, "Cannot initialise firmware\n");
5539 /* Turn radio off */
5540 rc
= mwl8k_cmd_radio_disable(hw
);
5542 wiphy_err(hw
->wiphy
, "Cannot disable\n");
5546 /* Clear MAC address */
5547 rc
= mwl8k_cmd_set_mac_addr(hw
, NULL
, "\x00\x00\x00\x00\x00\x00");
5549 wiphy_err(hw
->wiphy
, "Cannot clear MAC address\n");
5553 /* Disable interrupts */
5554 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5555 free_irq(priv
->pdev
->irq
, hw
);
5557 wiphy_info(hw
->wiphy
, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5558 priv
->device_info
->part_name
,
5559 priv
->hw_rev
, hw
->wiphy
->perm_addr
,
5560 priv
->ap_fw
? "AP" : "STA",
5561 (priv
->fw_rev
>> 24) & 0xff, (priv
->fw_rev
>> 16) & 0xff,
5562 (priv
->fw_rev
>> 8) & 0xff, priv
->fw_rev
& 0xff);
5567 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5568 free_irq(priv
->pdev
->irq
, hw
);
5571 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5572 mwl8k_txq_deinit(hw
, i
);
5573 mwl8k_rxq_deinit(hw
, 0);
5576 mwl8k_hw_reset(priv
);
5582 * invoke mwl8k_reload_firmware to change the firmware image after the device
5583 * has already been registered
5585 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
)
5588 struct mwl8k_priv
*priv
= hw
->priv
;
5589 struct mwl8k_vif
*vif
, *tmp_vif
;
5592 mwl8k_rxq_deinit(hw
, 0);
5595 * All the existing interfaces are re-added by the ieee80211_reconfig;
5596 * which means driver should remove existing interfaces before calling
5597 * ieee80211_restart_hw
5599 if (priv
->hw_restart_in_progress
)
5600 list_for_each_entry_safe(vif
, tmp_vif
, &priv
->vif_list
, list
)
5601 mwl8k_remove_vif(priv
, vif
);
5603 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5604 mwl8k_txq_deinit(hw
, i
);
5606 rc
= mwl8k_init_firmware(hw
, fw_image
, false);
5610 rc
= mwl8k_probe_hw(hw
);
5614 if (priv
->hw_restart_in_progress
)
5617 rc
= mwl8k_start(hw
);
5621 rc
= mwl8k_config(hw
, ~0);
5625 for (i
= 0; i
< MWL8K_TX_WMM_QUEUES
; i
++) {
5626 rc
= mwl8k_conf_tx(hw
, NULL
, i
, &priv
->wmm_params
[i
]);
5634 printk(KERN_WARNING
"mwl8k: Failed to reload firmware image.\n");
5638 static const struct ieee80211_iface_limit ap_if_limits
[] = {
5639 { .max
= 8, .types
= BIT(NL80211_IFTYPE_AP
) },
5642 static const struct ieee80211_iface_combination ap_if_comb
= {
5643 .limits
= ap_if_limits
,
5644 .n_limits
= ARRAY_SIZE(ap_if_limits
),
5645 .max_interfaces
= 8,
5646 .num_different_channels
= 1,
5650 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
)
5652 struct ieee80211_hw
*hw
= priv
->hw
;
5655 rc
= mwl8k_load_firmware(hw
);
5656 mwl8k_release_firmware(priv
);
5658 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5663 * Extra headroom is the size of the required DMA header
5664 * minus the size of the smallest 802.11 frame (CTS frame).
5666 hw
->extra_tx_headroom
=
5667 sizeof(struct mwl8k_dma_data
) - sizeof(struct ieee80211_cts
);
5669 hw
->extra_tx_headroom
-= priv
->ap_fw
? REDUCED_TX_HEADROOM
: 0;
5671 hw
->channel_change_time
= 10;
5673 hw
->queues
= MWL8K_TX_WMM_QUEUES
;
5675 /* Set rssi values to dBm */
5676 hw
->flags
|= IEEE80211_HW_SIGNAL_DBM
| IEEE80211_HW_HAS_RATE_CONTROL
;
5679 * Ask mac80211 to not to trigger PS mode
5680 * based on PM bit of incoming frames.
5683 hw
->flags
|= IEEE80211_HW_AP_LINK_PS
;
5685 hw
->vif_data_size
= sizeof(struct mwl8k_vif
);
5686 hw
->sta_data_size
= sizeof(struct mwl8k_sta
);
5688 priv
->macids_used
= 0;
5689 INIT_LIST_HEAD(&priv
->vif_list
);
5691 /* Set default radio state and preamble */
5692 priv
->radio_on
= false;
5693 priv
->radio_short_preamble
= false;
5695 /* Finalize join worker */
5696 INIT_WORK(&priv
->finalize_join_worker
, mwl8k_finalize_join_worker
);
5697 /* Handle watchdog ba events */
5698 INIT_WORK(&priv
->watchdog_ba_handle
, mwl8k_watchdog_ba_events
);
5699 /* To reload the firmware if it crashes */
5700 INIT_WORK(&priv
->fw_reload
, mwl8k_hw_restart_work
);
5702 /* TX reclaim and RX tasklets. */
5703 tasklet_init(&priv
->poll_tx_task
, mwl8k_tx_poll
, (unsigned long)hw
);
5704 tasklet_disable(&priv
->poll_tx_task
);
5705 tasklet_init(&priv
->poll_rx_task
, mwl8k_rx_poll
, (unsigned long)hw
);
5706 tasklet_disable(&priv
->poll_rx_task
);
5708 /* Power management cookie */
5709 priv
->cookie
= pci_alloc_consistent(priv
->pdev
, 4, &priv
->cookie_dma
);
5710 if (priv
->cookie
== NULL
)
5713 mutex_init(&priv
->fw_mutex
);
5714 priv
->fw_mutex_owner
= NULL
;
5715 priv
->fw_mutex_depth
= 0;
5716 priv
->hostcmd_wait
= NULL
;
5718 spin_lock_init(&priv
->tx_lock
);
5720 spin_lock_init(&priv
->stream_lock
);
5722 priv
->tx_wait
= NULL
;
5724 rc
= mwl8k_probe_hw(hw
);
5726 goto err_free_cookie
;
5728 hw
->wiphy
->interface_modes
= 0;
5730 if (priv
->ap_macids_supported
|| priv
->device_info
->fw_image_ap
) {
5731 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_AP
);
5732 hw
->wiphy
->iface_combinations
= &ap_if_comb
;
5733 hw
->wiphy
->n_iface_combinations
= 1;
5736 if (priv
->sta_macids_supported
|| priv
->device_info
->fw_image_sta
)
5737 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
5739 rc
= ieee80211_register_hw(hw
);
5741 wiphy_err(hw
->wiphy
, "Cannot register device\n");
5742 goto err_unprobe_hw
;
5748 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5749 mwl8k_txq_deinit(hw
, i
);
5750 mwl8k_rxq_deinit(hw
, 0);
5753 if (priv
->cookie
!= NULL
)
5754 pci_free_consistent(priv
->pdev
, 4,
5755 priv
->cookie
, priv
->cookie_dma
);
5759 static int mwl8k_probe(struct pci_dev
*pdev
,
5760 const struct pci_device_id
*id
)
5762 static int printed_version
;
5763 struct ieee80211_hw
*hw
;
5764 struct mwl8k_priv
*priv
;
5765 struct mwl8k_device_info
*di
;
5768 if (!printed_version
) {
5769 printk(KERN_INFO
"%s version %s\n", MWL8K_DESC
, MWL8K_VERSION
);
5770 printed_version
= 1;
5774 rc
= pci_enable_device(pdev
);
5776 printk(KERN_ERR
"%s: Cannot enable new PCI device\n",
5781 rc
= pci_request_regions(pdev
, MWL8K_NAME
);
5783 printk(KERN_ERR
"%s: Cannot obtain PCI resources\n",
5785 goto err_disable_device
;
5788 pci_set_master(pdev
);
5791 hw
= ieee80211_alloc_hw(sizeof(*priv
), &mwl8k_ops
);
5793 printk(KERN_ERR
"%s: ieee80211 alloc failed\n", MWL8K_NAME
);
5798 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
5799 pci_set_drvdata(pdev
, hw
);
5804 priv
->device_info
= &mwl8k_info_tbl
[id
->driver_data
];
5807 priv
->sram
= pci_iomap(pdev
, 0, 0x10000);
5808 if (priv
->sram
== NULL
) {
5809 wiphy_err(hw
->wiphy
, "Cannot map device SRAM\n");
5814 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
5815 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
5817 priv
->regs
= pci_iomap(pdev
, 1, 0x10000);
5818 if (priv
->regs
== NULL
) {
5819 priv
->regs
= pci_iomap(pdev
, 2, 0x10000);
5820 if (priv
->regs
== NULL
) {
5821 wiphy_err(hw
->wiphy
, "Cannot map device registers\n");
5827 * Choose the initial fw image depending on user input. If a second
5828 * image is available, make it the alternative image that will be
5829 * loaded if the first one fails.
5831 init_completion(&priv
->firmware_loading_complete
);
5832 di
= priv
->device_info
;
5833 if (ap_mode_default
&& di
->fw_image_ap
) {
5834 priv
->fw_pref
= di
->fw_image_ap
;
5835 priv
->fw_alt
= di
->fw_image_sta
;
5836 } else if (!ap_mode_default
&& di
->fw_image_sta
) {
5837 priv
->fw_pref
= di
->fw_image_sta
;
5838 priv
->fw_alt
= di
->fw_image_ap
;
5839 } else if (ap_mode_default
&& !di
->fw_image_ap
&& di
->fw_image_sta
) {
5840 printk(KERN_WARNING
"AP fw is unavailable. Using STA fw.");
5841 priv
->fw_pref
= di
->fw_image_sta
;
5842 } else if (!ap_mode_default
&& !di
->fw_image_sta
&& di
->fw_image_ap
) {
5843 printk(KERN_WARNING
"STA fw is unavailable. Using AP fw.");
5844 priv
->fw_pref
= di
->fw_image_ap
;
5846 rc
= mwl8k_init_firmware(hw
, priv
->fw_pref
, true);
5848 goto err_stop_firmware
;
5850 priv
->hw_restart_in_progress
= false;
5855 mwl8k_hw_reset(priv
);
5858 if (priv
->regs
!= NULL
)
5859 pci_iounmap(pdev
, priv
->regs
);
5861 if (priv
->sram
!= NULL
)
5862 pci_iounmap(pdev
, priv
->sram
);
5864 pci_set_drvdata(pdev
, NULL
);
5865 ieee80211_free_hw(hw
);
5868 pci_release_regions(pdev
);
5871 pci_disable_device(pdev
);
5876 static void mwl8k_remove(struct pci_dev
*pdev
)
5878 struct ieee80211_hw
*hw
= pci_get_drvdata(pdev
);
5879 struct mwl8k_priv
*priv
;
5886 wait_for_completion(&priv
->firmware_loading_complete
);
5888 if (priv
->fw_state
== FW_STATE_ERROR
) {
5889 mwl8k_hw_reset(priv
);
5893 ieee80211_stop_queues(hw
);
5895 ieee80211_unregister_hw(hw
);
5897 /* Remove TX reclaim and RX tasklets. */
5898 tasklet_kill(&priv
->poll_tx_task
);
5899 tasklet_kill(&priv
->poll_rx_task
);
5902 mwl8k_hw_reset(priv
);
5904 /* Return all skbs to mac80211 */
5905 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5906 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
5908 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5909 mwl8k_txq_deinit(hw
, i
);
5911 mwl8k_rxq_deinit(hw
, 0);
5913 pci_free_consistent(priv
->pdev
, 4, priv
->cookie
, priv
->cookie_dma
);
5916 pci_iounmap(pdev
, priv
->regs
);
5917 pci_iounmap(pdev
, priv
->sram
);
5918 pci_set_drvdata(pdev
, NULL
);
5919 ieee80211_free_hw(hw
);
5920 pci_release_regions(pdev
);
5921 pci_disable_device(pdev
);
5924 static struct pci_driver mwl8k_driver
= {
5926 .id_table
= mwl8k_pci_id_table
,
5927 .probe
= mwl8k_probe
,
5928 .remove
= mwl8k_remove
,
5931 module_pci_driver(mwl8k_driver
);
5933 MODULE_DESCRIPTION(MWL8K_DESC
);
5934 MODULE_VERSION(MWL8K_VERSION
);
5935 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
5936 MODULE_LICENSE("GPL");