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)
104 /* txpriorities are mapped with hw queues.
105 * Each hw queue has a txpriority.
107 #define TOTAL_HW_TX_QUEUES 8
109 /* Each HW queue can have one AMPDU stream.
110 * But, because one of the hw queue is reserved,
111 * maximum AMPDU queues that can be created are
112 * one short of total tx queues.
114 #define MWL8K_NUM_AMPDU_STREAMS (TOTAL_HW_TX_QUEUES - 1)
118 void (*rxd_init
)(void *rxd
, dma_addr_t next_dma_addr
);
119 void (*rxd_refill
)(void *rxd
, dma_addr_t addr
, int len
);
120 int (*rxd_process
)(void *rxd
, struct ieee80211_rx_status
*status
,
121 __le16
*qos
, s8
*noise
);
124 struct mwl8k_device_info
{
129 struct rxd_ops
*ap_rxd_ops
;
133 struct mwl8k_rx_queue
{
136 /* hw receives here */
139 /* refill descs here */
146 DEFINE_DMA_UNMAP_ADDR(dma
);
150 struct mwl8k_tx_queue
{
151 /* hw transmits here */
154 /* sw appends here */
158 struct mwl8k_tx_desc
*txd
;
160 struct sk_buff
**skb
;
166 AMPDU_STREAM_IN_PROGRESS
,
170 struct mwl8k_ampdu_stream
{
171 struct ieee80211_sta
*sta
;
178 struct ieee80211_hw
*hw
;
179 struct pci_dev
*pdev
;
182 struct mwl8k_device_info
*device_info
;
188 const struct firmware
*fw_helper
;
189 const struct firmware
*fw_ucode
;
191 /* hardware/firmware parameters */
193 struct rxd_ops
*rxd_ops
;
194 struct ieee80211_supported_band band_24
;
195 struct ieee80211_channel channels_24
[14];
196 struct ieee80211_rate rates_24
[13];
197 struct ieee80211_supported_band band_50
;
198 struct ieee80211_channel channels_50
[4];
199 struct ieee80211_rate rates_50
[8];
200 u32 ap_macids_supported
;
201 u32 sta_macids_supported
;
203 /* Ampdu stream information */
205 spinlock_t stream_lock
;
206 struct mwl8k_ampdu_stream ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
207 struct work_struct watchdog_ba_handle
;
209 /* firmware access */
210 struct mutex fw_mutex
;
211 struct task_struct
*fw_mutex_owner
;
212 struct task_struct
*hw_restart_owner
;
214 struct completion
*hostcmd_wait
;
216 atomic_t watchdog_event_pending
;
218 /* lock held over TX and TX reap */
221 /* TX quiesce completion, protected by fw_mutex and tx_lock */
222 struct completion
*tx_wait
;
224 /* List of interfaces. */
226 struct list_head vif_list
;
228 /* power management status cookie from firmware */
230 dma_addr_t cookie_dma
;
238 * Running count of TX packets in flight, to avoid
239 * iterating over the transmit rings each time.
243 struct mwl8k_rx_queue rxq
[MWL8K_RX_QUEUES
];
244 struct mwl8k_tx_queue txq
[MWL8K_MAX_TX_QUEUES
];
245 u32 txq_offset
[MWL8K_MAX_TX_QUEUES
];
248 bool radio_short_preamble
;
249 bool sniffer_enabled
;
252 /* XXX need to convert this to handle multiple interfaces */
254 u8 capture_bssid
[ETH_ALEN
];
255 struct sk_buff
*beacon_skb
;
258 * This FJ worker has to be global as it is scheduled from the
259 * RX handler. At this point we don't know which interface it
260 * belongs to until the list of bssids waiting to complete join
263 struct work_struct finalize_join_worker
;
265 /* Tasklet to perform TX reclaim. */
266 struct tasklet_struct poll_tx_task
;
268 /* Tasklet to perform RX. */
269 struct tasklet_struct poll_rx_task
;
271 /* Most recently reported noise in dBm */
275 * preserve the queue configurations so they can be restored if/when
276 * the firmware image is swapped.
278 struct ieee80211_tx_queue_params wmm_params
[MWL8K_TX_WMM_QUEUES
];
280 /* To perform the task of reloading the firmware */
281 struct work_struct fw_reload
;
282 bool hw_restart_in_progress
;
284 /* async firmware loading state */
289 struct completion firmware_loading_complete
;
291 /* bitmap of running BSSes */
295 #define MAX_WEP_KEY_LEN 13
296 #define NUM_WEP_KEYS 4
298 /* Per interface specific private data */
300 struct list_head list
;
301 struct ieee80211_vif
*vif
;
303 /* Firmware macid for this vif. */
306 /* Non AMPDU sequence number assigned by driver. */
312 u8 key
[sizeof(struct ieee80211_key_conf
) + MAX_WEP_KEY_LEN
];
313 } wep_key_conf
[NUM_WEP_KEYS
];
318 /* A flag to indicate is HW crypto is enabled for this bssid */
319 bool is_hw_crypto_enabled
;
321 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
322 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
324 struct tx_traffic_info
{
329 #define MWL8K_MAX_TID 8
331 /* Index into station database. Returned by UPDATE_STADB. */
334 struct tx_traffic_info tx_stats
[MWL8K_MAX_TID
];
336 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
338 static const struct ieee80211_channel mwl8k_channels_24
[] = {
339 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2412, .hw_value
= 1, },
340 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2417, .hw_value
= 2, },
341 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2422, .hw_value
= 3, },
342 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2427, .hw_value
= 4, },
343 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2432, .hw_value
= 5, },
344 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2437, .hw_value
= 6, },
345 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2442, .hw_value
= 7, },
346 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2447, .hw_value
= 8, },
347 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2452, .hw_value
= 9, },
348 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2457, .hw_value
= 10, },
349 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2462, .hw_value
= 11, },
350 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2467, .hw_value
= 12, },
351 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2472, .hw_value
= 13, },
352 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2484, .hw_value
= 14, },
355 static const struct ieee80211_rate mwl8k_rates_24
[] = {
356 { .bitrate
= 10, .hw_value
= 2, },
357 { .bitrate
= 20, .hw_value
= 4, },
358 { .bitrate
= 55, .hw_value
= 11, },
359 { .bitrate
= 110, .hw_value
= 22, },
360 { .bitrate
= 220, .hw_value
= 44, },
361 { .bitrate
= 60, .hw_value
= 12, },
362 { .bitrate
= 90, .hw_value
= 18, },
363 { .bitrate
= 120, .hw_value
= 24, },
364 { .bitrate
= 180, .hw_value
= 36, },
365 { .bitrate
= 240, .hw_value
= 48, },
366 { .bitrate
= 360, .hw_value
= 72, },
367 { .bitrate
= 480, .hw_value
= 96, },
368 { .bitrate
= 540, .hw_value
= 108, },
371 static const struct ieee80211_channel mwl8k_channels_50
[] = {
372 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5180, .hw_value
= 36, },
373 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5200, .hw_value
= 40, },
374 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5220, .hw_value
= 44, },
375 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5240, .hw_value
= 48, },
378 static const struct ieee80211_rate mwl8k_rates_50
[] = {
379 { .bitrate
= 60, .hw_value
= 12, },
380 { .bitrate
= 90, .hw_value
= 18, },
381 { .bitrate
= 120, .hw_value
= 24, },
382 { .bitrate
= 180, .hw_value
= 36, },
383 { .bitrate
= 240, .hw_value
= 48, },
384 { .bitrate
= 360, .hw_value
= 72, },
385 { .bitrate
= 480, .hw_value
= 96, },
386 { .bitrate
= 540, .hw_value
= 108, },
389 /* Set or get info from Firmware */
390 #define MWL8K_CMD_GET 0x0000
391 #define MWL8K_CMD_SET 0x0001
392 #define MWL8K_CMD_SET_LIST 0x0002
394 /* Firmware command codes */
395 #define MWL8K_CMD_CODE_DNLD 0x0001
396 #define MWL8K_CMD_GET_HW_SPEC 0x0003
397 #define MWL8K_CMD_SET_HW_SPEC 0x0004
398 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
399 #define MWL8K_CMD_GET_STAT 0x0014
400 #define MWL8K_CMD_RADIO_CONTROL 0x001c
401 #define MWL8K_CMD_RF_TX_POWER 0x001e
402 #define MWL8K_CMD_TX_POWER 0x001f
403 #define MWL8K_CMD_RF_ANTENNA 0x0020
404 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
405 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
406 #define MWL8K_CMD_SET_POST_SCAN 0x0108
407 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
408 #define MWL8K_CMD_SET_AID 0x010d
409 #define MWL8K_CMD_SET_RATE 0x0110
410 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
411 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
412 #define MWL8K_CMD_SET_SLOT 0x0114
413 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
414 #define MWL8K_CMD_SET_WMM_MODE 0x0123
415 #define MWL8K_CMD_MIMO_CONFIG 0x0125
416 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
417 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
418 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
419 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
420 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
421 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
422 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
423 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
424 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
425 #define MWL8K_CMD_UPDATE_STADB 0x1123
426 #define MWL8K_CMD_BASTREAM 0x1125
428 static const char *mwl8k_cmd_name(__le16 cmd
, char *buf
, int bufsize
)
430 u16 command
= le16_to_cpu(cmd
);
432 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
433 snprintf(buf, bufsize, "%s", #x);\
436 switch (command
& ~0x8000) {
437 MWL8K_CMDNAME(CODE_DNLD
);
438 MWL8K_CMDNAME(GET_HW_SPEC
);
439 MWL8K_CMDNAME(SET_HW_SPEC
);
440 MWL8K_CMDNAME(MAC_MULTICAST_ADR
);
441 MWL8K_CMDNAME(GET_STAT
);
442 MWL8K_CMDNAME(RADIO_CONTROL
);
443 MWL8K_CMDNAME(RF_TX_POWER
);
444 MWL8K_CMDNAME(TX_POWER
);
445 MWL8K_CMDNAME(RF_ANTENNA
);
446 MWL8K_CMDNAME(SET_BEACON
);
447 MWL8K_CMDNAME(SET_PRE_SCAN
);
448 MWL8K_CMDNAME(SET_POST_SCAN
);
449 MWL8K_CMDNAME(SET_RF_CHANNEL
);
450 MWL8K_CMDNAME(SET_AID
);
451 MWL8K_CMDNAME(SET_RATE
);
452 MWL8K_CMDNAME(SET_FINALIZE_JOIN
);
453 MWL8K_CMDNAME(RTS_THRESHOLD
);
454 MWL8K_CMDNAME(SET_SLOT
);
455 MWL8K_CMDNAME(SET_EDCA_PARAMS
);
456 MWL8K_CMDNAME(SET_WMM_MODE
);
457 MWL8K_CMDNAME(MIMO_CONFIG
);
458 MWL8K_CMDNAME(USE_FIXED_RATE
);
459 MWL8K_CMDNAME(ENABLE_SNIFFER
);
460 MWL8K_CMDNAME(SET_MAC_ADDR
);
461 MWL8K_CMDNAME(SET_RATEADAPT_MODE
);
462 MWL8K_CMDNAME(BSS_START
);
463 MWL8K_CMDNAME(SET_NEW_STN
);
464 MWL8K_CMDNAME(UPDATE_ENCRYPTION
);
465 MWL8K_CMDNAME(UPDATE_STADB
);
466 MWL8K_CMDNAME(BASTREAM
);
467 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP
);
469 snprintf(buf
, bufsize
, "0x%x", cmd
);
476 /* Hardware and firmware reset */
477 static void mwl8k_hw_reset(struct mwl8k_priv
*priv
)
479 iowrite32(MWL8K_H2A_INT_RESET
,
480 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
481 iowrite32(MWL8K_H2A_INT_RESET
,
482 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
486 /* Release fw image */
487 static void mwl8k_release_fw(const struct firmware
**fw
)
491 release_firmware(*fw
);
495 static void mwl8k_release_firmware(struct mwl8k_priv
*priv
)
497 mwl8k_release_fw(&priv
->fw_ucode
);
498 mwl8k_release_fw(&priv
->fw_helper
);
501 /* states for asynchronous f/w loading */
502 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
);
505 FW_STATE_LOADING_PREF
,
506 FW_STATE_LOADING_ALT
,
510 /* Request fw image */
511 static int mwl8k_request_fw(struct mwl8k_priv
*priv
,
512 const char *fname
, const struct firmware
**fw
,
515 /* release current image */
517 mwl8k_release_fw(fw
);
520 return request_firmware_nowait(THIS_MODULE
, 1, fname
,
521 &priv
->pdev
->dev
, GFP_KERNEL
,
522 priv
, mwl8k_fw_state_machine
);
524 return request_firmware(fw
, fname
, &priv
->pdev
->dev
);
527 static int mwl8k_request_firmware(struct mwl8k_priv
*priv
, char *fw_image
,
530 struct mwl8k_device_info
*di
= priv
->device_info
;
533 if (di
->helper_image
!= NULL
) {
535 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
536 &priv
->fw_helper
, true);
538 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
539 &priv
->fw_helper
, false);
541 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
542 pci_name(priv
->pdev
), di
->helper_image
);
550 * if we get here, no helper image is needed. Skip the
551 * FW_STATE_INIT state.
553 priv
->fw_state
= FW_STATE_LOADING_PREF
;
554 rc
= mwl8k_request_fw(priv
, fw_image
,
558 rc
= mwl8k_request_fw(priv
, fw_image
,
559 &priv
->fw_ucode
, false);
561 printk(KERN_ERR
"%s: Error requesting firmware file %s\n",
562 pci_name(priv
->pdev
), fw_image
);
563 mwl8k_release_fw(&priv
->fw_helper
);
570 struct mwl8k_cmd_pkt
{
583 mwl8k_send_fw_load_cmd(struct mwl8k_priv
*priv
, void *data
, int length
)
585 void __iomem
*regs
= priv
->regs
;
589 dma_addr
= pci_map_single(priv
->pdev
, data
, length
, PCI_DMA_TODEVICE
);
590 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
593 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
594 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
595 iowrite32(MWL8K_H2A_INT_DOORBELL
,
596 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
597 iowrite32(MWL8K_H2A_INT_DUMMY
,
598 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
604 int_code
= ioread32(regs
+
605 MWL8K_HIU_H2A_INTERRUPT_STATUS
);
609 int_code
= ioread32(regs
+ MWL8K_HIU_INT_CODE
);
610 if (int_code
== MWL8K_INT_CODE_CMD_FINISHED
) {
611 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
619 pci_unmap_single(priv
->pdev
, dma_addr
, length
, PCI_DMA_TODEVICE
);
621 return loops
? 0 : -ETIMEDOUT
;
624 static int mwl8k_load_fw_image(struct mwl8k_priv
*priv
,
625 const u8
*data
, size_t length
)
627 struct mwl8k_cmd_pkt
*cmd
;
631 cmd
= kmalloc(sizeof(*cmd
) + 256, GFP_KERNEL
);
635 cmd
->code
= cpu_to_le16(MWL8K_CMD_CODE_DNLD
);
642 int block_size
= length
> 256 ? 256 : length
;
644 memcpy(cmd
->payload
, data
+ done
, block_size
);
645 cmd
->length
= cpu_to_le16(block_size
);
647 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
,
648 sizeof(*cmd
) + block_size
);
653 length
-= block_size
;
658 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
, sizeof(*cmd
));
666 static int mwl8k_feed_fw_image(struct mwl8k_priv
*priv
,
667 const u8
*data
, size_t length
)
669 unsigned char *buffer
;
670 int may_continue
, rc
= 0;
671 u32 done
, prev_block_size
;
673 buffer
= kmalloc(1024, GFP_KERNEL
);
680 while (may_continue
> 0) {
683 block_size
= ioread32(priv
->regs
+ MWL8K_HIU_SCRATCH
);
684 if (block_size
& 1) {
688 done
+= prev_block_size
;
689 length
-= prev_block_size
;
692 if (block_size
> 1024 || block_size
> length
) {
702 if (block_size
== 0) {
709 prev_block_size
= block_size
;
710 memcpy(buffer
, data
+ done
, block_size
);
712 rc
= mwl8k_send_fw_load_cmd(priv
, buffer
, block_size
);
717 if (!rc
&& length
!= 0)
725 static int mwl8k_load_firmware(struct ieee80211_hw
*hw
)
727 struct mwl8k_priv
*priv
= hw
->priv
;
728 const struct firmware
*fw
= priv
->fw_ucode
;
732 if (!memcmp(fw
->data
, "\x01\x00\x00\x00", 4) && !priv
->is_8764
) {
733 const struct firmware
*helper
= priv
->fw_helper
;
735 if (helper
== NULL
) {
736 printk(KERN_ERR
"%s: helper image needed but none "
737 "given\n", pci_name(priv
->pdev
));
741 rc
= mwl8k_load_fw_image(priv
, helper
->data
, helper
->size
);
743 printk(KERN_ERR
"%s: unable to load firmware "
744 "helper image\n", pci_name(priv
->pdev
));
749 rc
= mwl8k_feed_fw_image(priv
, fw
->data
, fw
->size
);
752 rc
= mwl8k_feed_fw_image(priv
, fw
->data
, fw
->size
);
754 rc
= mwl8k_load_fw_image(priv
, fw
->data
, fw
->size
);
758 printk(KERN_ERR
"%s: unable to load firmware image\n",
759 pci_name(priv
->pdev
));
763 iowrite32(MWL8K_MODE_STA
, priv
->regs
+ MWL8K_HIU_GEN_PTR
);
769 ready_code
= ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
770 if (ready_code
== MWL8K_FWAP_READY
) {
773 } else if (ready_code
== MWL8K_FWSTA_READY
) {
782 return loops
? 0 : -ETIMEDOUT
;
786 /* DMA header used by firmware and hardware. */
787 struct mwl8k_dma_data
{
789 struct ieee80211_hdr wh
;
793 /* Routines to add/remove DMA header from skb. */
794 static inline void mwl8k_remove_dma_header(struct sk_buff
*skb
, __le16 qos
)
796 struct mwl8k_dma_data
*tr
;
799 tr
= (struct mwl8k_dma_data
*)skb
->data
;
800 hdrlen
= ieee80211_hdrlen(tr
->wh
.frame_control
);
802 if (hdrlen
!= sizeof(tr
->wh
)) {
803 if (ieee80211_is_data_qos(tr
->wh
.frame_control
)) {
804 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
- 2);
805 *((__le16
*)(tr
->data
- 2)) = qos
;
807 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
);
811 if (hdrlen
!= sizeof(*tr
))
812 skb_pull(skb
, sizeof(*tr
) - hdrlen
);
815 #define REDUCED_TX_HEADROOM 8
818 mwl8k_add_dma_header(struct mwl8k_priv
*priv
, struct sk_buff
*skb
,
819 int head_pad
, int tail_pad
)
821 struct ieee80211_hdr
*wh
;
824 struct mwl8k_dma_data
*tr
;
827 * Add a firmware DMA header; the firmware requires that we
828 * present a 2-byte payload length followed by a 4-address
829 * header (without QoS field), followed (optionally) by any
830 * WEP/ExtIV header (but only filled in for CCMP).
832 wh
= (struct ieee80211_hdr
*)skb
->data
;
834 hdrlen
= ieee80211_hdrlen(wh
->frame_control
);
837 * Check if skb_resize is required because of
838 * tx_headroom adjustment.
840 if (priv
->ap_fw
&& (hdrlen
< (sizeof(struct ieee80211_cts
)
841 + REDUCED_TX_HEADROOM
))) {
842 if (pskb_expand_head(skb
, REDUCED_TX_HEADROOM
, 0, GFP_ATOMIC
)) {
844 wiphy_err(priv
->hw
->wiphy
,
845 "Failed to reallocate TX buffer\n");
848 skb
->truesize
+= REDUCED_TX_HEADROOM
;
851 reqd_hdrlen
= sizeof(*tr
) + head_pad
;
853 if (hdrlen
!= reqd_hdrlen
)
854 skb_push(skb
, reqd_hdrlen
- hdrlen
);
856 if (ieee80211_is_data_qos(wh
->frame_control
))
857 hdrlen
-= IEEE80211_QOS_CTL_LEN
;
859 tr
= (struct mwl8k_dma_data
*)skb
->data
;
861 memmove(&tr
->wh
, wh
, hdrlen
);
862 if (hdrlen
!= sizeof(tr
->wh
))
863 memset(((void *)&tr
->wh
) + hdrlen
, 0, sizeof(tr
->wh
) - hdrlen
);
866 * Firmware length is the length of the fully formed "802.11
867 * payload". That is, everything except for the 802.11 header.
868 * This includes all crypto material including the MIC.
870 tr
->fwlen
= cpu_to_le16(skb
->len
- sizeof(*tr
) + tail_pad
);
873 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv
*priv
,
876 struct ieee80211_hdr
*wh
;
877 struct ieee80211_tx_info
*tx_info
;
878 struct ieee80211_key_conf
*key_conf
;
882 wh
= (struct ieee80211_hdr
*)skb
->data
;
884 tx_info
= IEEE80211_SKB_CB(skb
);
887 if (ieee80211_is_data(wh
->frame_control
))
888 key_conf
= tx_info
->control
.hw_key
;
891 * Make sure the packet header is in the DMA header format (4-address
892 * without QoS), and add head & tail padding when HW crypto is enabled.
894 * We have the following trailer padding requirements:
895 * - WEP: 4 trailer bytes (ICV)
896 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
897 * - CCMP: 8 trailer bytes (MIC)
900 if (key_conf
!= NULL
) {
901 head_pad
= key_conf
->iv_len
;
902 switch (key_conf
->cipher
) {
903 case WLAN_CIPHER_SUITE_WEP40
:
904 case WLAN_CIPHER_SUITE_WEP104
:
907 case WLAN_CIPHER_SUITE_TKIP
:
910 case WLAN_CIPHER_SUITE_CCMP
:
915 mwl8k_add_dma_header(priv
, skb
, head_pad
, data_pad
);
919 * Packet reception for 88w8366/88w8764 AP firmware.
921 struct mwl8k_rxd_ap
{
925 __le32 pkt_phys_addr
;
926 __le32 next_rxd_phys_addr
;
930 __le32 hw_noise_floor_info
;
939 #define MWL8K_AP_RATE_INFO_MCS_FORMAT 0x80
940 #define MWL8K_AP_RATE_INFO_40MHZ 0x40
941 #define MWL8K_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
943 #define MWL8K_AP_RX_CTRL_OWNED_BY_HOST 0x80
945 /* 8366/8764 AP rx_status bits */
946 #define MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
947 #define MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
948 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
949 #define MWL8K_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
950 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
952 static void mwl8k_rxd_ap_init(void *_rxd
, dma_addr_t next_dma_addr
)
954 struct mwl8k_rxd_ap
*rxd
= _rxd
;
956 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
957 rxd
->rx_ctrl
= MWL8K_AP_RX_CTRL_OWNED_BY_HOST
;
960 static void mwl8k_rxd_ap_refill(void *_rxd
, dma_addr_t addr
, int len
)
962 struct mwl8k_rxd_ap
*rxd
= _rxd
;
964 rxd
->pkt_len
= cpu_to_le16(len
);
965 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
971 mwl8k_rxd_ap_process(void *_rxd
, struct ieee80211_rx_status
*status
,
972 __le16
*qos
, s8
*noise
)
974 struct mwl8k_rxd_ap
*rxd
= _rxd
;
976 if (!(rxd
->rx_ctrl
& MWL8K_AP_RX_CTRL_OWNED_BY_HOST
))
980 memset(status
, 0, sizeof(*status
));
982 status
->signal
= -rxd
->rssi
;
983 *noise
= -rxd
->noise_floor
;
985 if (rxd
->rate
& MWL8K_AP_RATE_INFO_MCS_FORMAT
) {
986 status
->flag
|= RX_FLAG_HT
;
987 if (rxd
->rate
& MWL8K_AP_RATE_INFO_40MHZ
)
988 status
->flag
|= RX_FLAG_40MHZ
;
989 status
->rate_idx
= MWL8K_AP_RATE_INFO_RATEID(rxd
->rate
);
993 for (i
= 0; i
< ARRAY_SIZE(mwl8k_rates_24
); i
++) {
994 if (mwl8k_rates_24
[i
].hw_value
== rxd
->rate
) {
995 status
->rate_idx
= i
;
1001 if (rxd
->channel
> 14) {
1002 status
->band
= IEEE80211_BAND_5GHZ
;
1003 if (!(status
->flag
& RX_FLAG_HT
))
1004 status
->rate_idx
-= 5;
1006 status
->band
= IEEE80211_BAND_2GHZ
;
1008 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
1011 *qos
= rxd
->qos_control
;
1013 if ((rxd
->rx_status
!= MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR
) &&
1014 (rxd
->rx_status
& MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK
) &&
1015 (rxd
->rx_status
& MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR
))
1016 status
->flag
|= RX_FLAG_MMIC_ERROR
;
1018 return le16_to_cpu(rxd
->pkt_len
);
1021 static struct rxd_ops rxd_ap_ops
= {
1022 .rxd_size
= sizeof(struct mwl8k_rxd_ap
),
1023 .rxd_init
= mwl8k_rxd_ap_init
,
1024 .rxd_refill
= mwl8k_rxd_ap_refill
,
1025 .rxd_process
= mwl8k_rxd_ap_process
,
1029 * Packet reception for STA firmware.
1031 struct mwl8k_rxd_sta
{
1035 __le32 pkt_phys_addr
;
1036 __le32 next_rxd_phys_addr
;
1048 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1049 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1050 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1051 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1052 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1053 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1055 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1056 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1057 /* ICV=0 or MIC=1 */
1058 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1059 /* Key is uploaded only in failure case */
1060 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1062 static void mwl8k_rxd_sta_init(void *_rxd
, dma_addr_t next_dma_addr
)
1064 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1066 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
1067 rxd
->rx_ctrl
= MWL8K_STA_RX_CTRL_OWNED_BY_HOST
;
1070 static void mwl8k_rxd_sta_refill(void *_rxd
, dma_addr_t addr
, int len
)
1072 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1074 rxd
->pkt_len
= cpu_to_le16(len
);
1075 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
1081 mwl8k_rxd_sta_process(void *_rxd
, struct ieee80211_rx_status
*status
,
1082 __le16
*qos
, s8
*noise
)
1084 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1087 if (!(rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_OWNED_BY_HOST
))
1091 rate_info
= le16_to_cpu(rxd
->rate_info
);
1093 memset(status
, 0, sizeof(*status
));
1095 status
->signal
= -rxd
->rssi
;
1096 *noise
= -rxd
->noise_level
;
1097 status
->antenna
= MWL8K_STA_RATE_INFO_ANTSELECT(rate_info
);
1098 status
->rate_idx
= MWL8K_STA_RATE_INFO_RATEID(rate_info
);
1100 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTPRE
)
1101 status
->flag
|= RX_FLAG_SHORTPRE
;
1102 if (rate_info
& MWL8K_STA_RATE_INFO_40MHZ
)
1103 status
->flag
|= RX_FLAG_40MHZ
;
1104 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTGI
)
1105 status
->flag
|= RX_FLAG_SHORT_GI
;
1106 if (rate_info
& MWL8K_STA_RATE_INFO_MCS_FORMAT
)
1107 status
->flag
|= RX_FLAG_HT
;
1109 if (rxd
->channel
> 14) {
1110 status
->band
= IEEE80211_BAND_5GHZ
;
1111 if (!(status
->flag
& RX_FLAG_HT
))
1112 status
->rate_idx
-= 5;
1114 status
->band
= IEEE80211_BAND_2GHZ
;
1116 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
1119 *qos
= rxd
->qos_control
;
1120 if ((rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DECRYPT_ERROR
) &&
1121 (rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DEC_ERR_TYPE
))
1122 status
->flag
|= RX_FLAG_MMIC_ERROR
;
1124 return le16_to_cpu(rxd
->pkt_len
);
1127 static struct rxd_ops rxd_sta_ops
= {
1128 .rxd_size
= sizeof(struct mwl8k_rxd_sta
),
1129 .rxd_init
= mwl8k_rxd_sta_init
,
1130 .rxd_refill
= mwl8k_rxd_sta_refill
,
1131 .rxd_process
= mwl8k_rxd_sta_process
,
1135 #define MWL8K_RX_DESCS 256
1136 #define MWL8K_RX_MAXSZ 3800
1138 static int mwl8k_rxq_init(struct ieee80211_hw
*hw
, int index
)
1140 struct mwl8k_priv
*priv
= hw
->priv
;
1141 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1149 size
= MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
;
1151 rxq
->rxd
= pci_alloc_consistent(priv
->pdev
, size
, &rxq
->rxd_dma
);
1152 if (rxq
->rxd
== NULL
) {
1153 wiphy_err(hw
->wiphy
, "failed to alloc RX descriptors\n");
1156 memset(rxq
->rxd
, 0, size
);
1158 rxq
->buf
= kcalloc(MWL8K_RX_DESCS
, sizeof(*rxq
->buf
), GFP_KERNEL
);
1159 if (rxq
->buf
== NULL
) {
1160 pci_free_consistent(priv
->pdev
, size
, rxq
->rxd
, rxq
->rxd_dma
);
1164 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1168 dma_addr_t next_dma_addr
;
1170 desc_size
= priv
->rxd_ops
->rxd_size
;
1171 rxd
= rxq
->rxd
+ (i
* priv
->rxd_ops
->rxd_size
);
1174 if (nexti
== MWL8K_RX_DESCS
)
1176 next_dma_addr
= rxq
->rxd_dma
+ (nexti
* desc_size
);
1178 priv
->rxd_ops
->rxd_init(rxd
, next_dma_addr
);
1184 static int rxq_refill(struct ieee80211_hw
*hw
, int index
, int limit
)
1186 struct mwl8k_priv
*priv
= hw
->priv
;
1187 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1191 while (rxq
->rxd_count
< MWL8K_RX_DESCS
&& limit
--) {
1192 struct sk_buff
*skb
;
1197 skb
= dev_alloc_skb(MWL8K_RX_MAXSZ
);
1201 addr
= pci_map_single(priv
->pdev
, skb
->data
,
1202 MWL8K_RX_MAXSZ
, DMA_FROM_DEVICE
);
1206 if (rxq
->tail
== MWL8K_RX_DESCS
)
1208 rxq
->buf
[rx
].skb
= skb
;
1209 dma_unmap_addr_set(&rxq
->buf
[rx
], dma
, addr
);
1211 rxd
= rxq
->rxd
+ (rx
* priv
->rxd_ops
->rxd_size
);
1212 priv
->rxd_ops
->rxd_refill(rxd
, addr
, MWL8K_RX_MAXSZ
);
1220 /* Must be called only when the card's reception is completely halted */
1221 static void mwl8k_rxq_deinit(struct ieee80211_hw
*hw
, int index
)
1223 struct mwl8k_priv
*priv
= hw
->priv
;
1224 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1227 if (rxq
->rxd
== NULL
)
1230 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1231 if (rxq
->buf
[i
].skb
!= NULL
) {
1232 pci_unmap_single(priv
->pdev
,
1233 dma_unmap_addr(&rxq
->buf
[i
], dma
),
1234 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1235 dma_unmap_addr_set(&rxq
->buf
[i
], dma
, 0);
1237 kfree_skb(rxq
->buf
[i
].skb
);
1238 rxq
->buf
[i
].skb
= NULL
;
1245 pci_free_consistent(priv
->pdev
,
1246 MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
,
1247 rxq
->rxd
, rxq
->rxd_dma
);
1253 * Scan a list of BSSIDs to process for finalize join.
1254 * Allows for extension to process multiple BSSIDs.
1257 mwl8k_capture_bssid(struct mwl8k_priv
*priv
, struct ieee80211_hdr
*wh
)
1259 return priv
->capture_beacon
&&
1260 ieee80211_is_beacon(wh
->frame_control
) &&
1261 ether_addr_equal(wh
->addr3
, priv
->capture_bssid
);
1264 static inline void mwl8k_save_beacon(struct ieee80211_hw
*hw
,
1265 struct sk_buff
*skb
)
1267 struct mwl8k_priv
*priv
= hw
->priv
;
1269 priv
->capture_beacon
= false;
1270 memset(priv
->capture_bssid
, 0, ETH_ALEN
);
1273 * Use GFP_ATOMIC as rxq_process is called from
1274 * the primary interrupt handler, memory allocation call
1277 priv
->beacon_skb
= skb_copy(skb
, GFP_ATOMIC
);
1278 if (priv
->beacon_skb
!= NULL
)
1279 ieee80211_queue_work(hw
, &priv
->finalize_join_worker
);
1282 static inline struct mwl8k_vif
*mwl8k_find_vif_bss(struct list_head
*vif_list
,
1285 struct mwl8k_vif
*mwl8k_vif
;
1287 list_for_each_entry(mwl8k_vif
,
1289 if (memcmp(bssid
, mwl8k_vif
->bssid
,
1297 static int rxq_process(struct ieee80211_hw
*hw
, int index
, int limit
)
1299 struct mwl8k_priv
*priv
= hw
->priv
;
1300 struct mwl8k_vif
*mwl8k_vif
= NULL
;
1301 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1305 while (rxq
->rxd_count
&& limit
--) {
1306 struct sk_buff
*skb
;
1309 struct ieee80211_rx_status status
;
1310 struct ieee80211_hdr
*wh
;
1313 skb
= rxq
->buf
[rxq
->head
].skb
;
1317 rxd
= rxq
->rxd
+ (rxq
->head
* priv
->rxd_ops
->rxd_size
);
1319 pkt_len
= priv
->rxd_ops
->rxd_process(rxd
, &status
, &qos
,
1324 rxq
->buf
[rxq
->head
].skb
= NULL
;
1326 pci_unmap_single(priv
->pdev
,
1327 dma_unmap_addr(&rxq
->buf
[rxq
->head
], dma
),
1328 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1329 dma_unmap_addr_set(&rxq
->buf
[rxq
->head
], dma
, 0);
1332 if (rxq
->head
== MWL8K_RX_DESCS
)
1337 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1340 * Check for a pending join operation. Save a
1341 * copy of the beacon and schedule a tasklet to
1342 * send a FINALIZE_JOIN command to the firmware.
1344 if (mwl8k_capture_bssid(priv
, (void *)skb
->data
))
1345 mwl8k_save_beacon(hw
, skb
);
1347 if (ieee80211_has_protected(wh
->frame_control
)) {
1349 /* Check if hw crypto has been enabled for
1350 * this bss. If yes, set the status flags
1353 mwl8k_vif
= mwl8k_find_vif_bss(&priv
->vif_list
,
1356 if (mwl8k_vif
!= NULL
&&
1357 mwl8k_vif
->is_hw_crypto_enabled
) {
1359 * When MMIC ERROR is encountered
1360 * by the firmware, payload is
1361 * dropped and only 32 bytes of
1362 * mwl8k Firmware header is sent
1365 * We need to add four bytes of
1366 * key information. In it
1367 * MAC80211 expects keyidx set to
1368 * 0 for triggering Counter
1369 * Measure of MMIC failure.
1371 if (status
.flag
& RX_FLAG_MMIC_ERROR
) {
1372 struct mwl8k_dma_data
*tr
;
1373 tr
= (struct mwl8k_dma_data
*)skb
->data
;
1374 memset((void *)&(tr
->data
), 0, 4);
1378 if (!ieee80211_is_auth(wh
->frame_control
))
1379 status
.flag
|= RX_FLAG_IV_STRIPPED
|
1381 RX_FLAG_MMIC_STRIPPED
;
1385 skb_put(skb
, pkt_len
);
1386 mwl8k_remove_dma_header(skb
, qos
);
1387 memcpy(IEEE80211_SKB_RXCB(skb
), &status
, sizeof(status
));
1388 ieee80211_rx_irqsafe(hw
, skb
);
1398 * Packet transmission.
1401 #define MWL8K_TXD_STATUS_OK 0x00000001
1402 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1403 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1404 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1405 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1407 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1408 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1409 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1410 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1411 #define MWL8K_QOS_EOSP 0x0010
1413 struct mwl8k_tx_desc
{
1418 __le32 pkt_phys_addr
;
1420 __u8 dest_MAC_addr
[ETH_ALEN
];
1421 __le32 next_txd_phys_addr
;
1428 #define MWL8K_TX_DESCS 128
1430 static int mwl8k_txq_init(struct ieee80211_hw
*hw
, int index
)
1432 struct mwl8k_priv
*priv
= hw
->priv
;
1433 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1441 size
= MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
);
1443 txq
->txd
= pci_alloc_consistent(priv
->pdev
, size
, &txq
->txd_dma
);
1444 if (txq
->txd
== NULL
) {
1445 wiphy_err(hw
->wiphy
, "failed to alloc TX descriptors\n");
1448 memset(txq
->txd
, 0, size
);
1450 txq
->skb
= kcalloc(MWL8K_TX_DESCS
, sizeof(*txq
->skb
), GFP_KERNEL
);
1451 if (txq
->skb
== NULL
) {
1452 pci_free_consistent(priv
->pdev
, size
, txq
->txd
, txq
->txd_dma
);
1456 for (i
= 0; i
< MWL8K_TX_DESCS
; i
++) {
1457 struct mwl8k_tx_desc
*tx_desc
;
1460 tx_desc
= txq
->txd
+ i
;
1461 nexti
= (i
+ 1) % MWL8K_TX_DESCS
;
1463 tx_desc
->status
= 0;
1464 tx_desc
->next_txd_phys_addr
=
1465 cpu_to_le32(txq
->txd_dma
+ nexti
* sizeof(*tx_desc
));
1471 static inline void mwl8k_tx_start(struct mwl8k_priv
*priv
)
1473 iowrite32(MWL8K_H2A_INT_PPA_READY
,
1474 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1475 iowrite32(MWL8K_H2A_INT_DUMMY
,
1476 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1477 ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
1480 static void mwl8k_dump_tx_rings(struct ieee80211_hw
*hw
)
1482 struct mwl8k_priv
*priv
= hw
->priv
;
1485 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
1486 struct mwl8k_tx_queue
*txq
= priv
->txq
+ i
;
1492 for (desc
= 0; desc
< MWL8K_TX_DESCS
; desc
++) {
1493 struct mwl8k_tx_desc
*tx_desc
= txq
->txd
+ desc
;
1496 status
= le32_to_cpu(tx_desc
->status
);
1497 if (status
& MWL8K_TXD_STATUS_FW_OWNED
)
1502 if (tx_desc
->pkt_len
== 0)
1506 wiphy_err(hw
->wiphy
,
1507 "txq[%d] len=%d head=%d tail=%d "
1508 "fw_owned=%d drv_owned=%d unused=%d\n",
1510 txq
->len
, txq
->head
, txq
->tail
,
1511 fw_owned
, drv_owned
, unused
);
1516 * Must be called with priv->fw_mutex held and tx queues stopped.
1518 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1520 static int mwl8k_tx_wait_empty(struct ieee80211_hw
*hw
)
1522 struct mwl8k_priv
*priv
= hw
->priv
;
1523 DECLARE_COMPLETION_ONSTACK(tx_wait
);
1529 /* Since fw restart is in progress, allow only the firmware
1530 * commands from the restart code and block the other
1531 * commands since they are going to fail in any case since
1532 * the firmware has crashed
1534 if (priv
->hw_restart_in_progress
) {
1535 if (priv
->hw_restart_owner
== current
)
1541 if (atomic_read(&priv
->watchdog_event_pending
))
1545 * The TX queues are stopped at this point, so this test
1546 * doesn't need to take ->tx_lock.
1548 if (!priv
->pending_tx_pkts
)
1554 spin_lock_bh(&priv
->tx_lock
);
1555 priv
->tx_wait
= &tx_wait
;
1558 unsigned long timeout
;
1560 oldcount
= priv
->pending_tx_pkts
;
1562 spin_unlock_bh(&priv
->tx_lock
);
1563 timeout
= wait_for_completion_timeout(&tx_wait
,
1564 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS
));
1566 if (atomic_read(&priv
->watchdog_event_pending
)) {
1567 spin_lock_bh(&priv
->tx_lock
);
1568 priv
->tx_wait
= NULL
;
1569 spin_unlock_bh(&priv
->tx_lock
);
1573 spin_lock_bh(&priv
->tx_lock
);
1576 WARN_ON(priv
->pending_tx_pkts
);
1578 wiphy_notice(hw
->wiphy
, "tx rings drained\n");
1582 if (priv
->pending_tx_pkts
< oldcount
) {
1583 wiphy_notice(hw
->wiphy
,
1584 "waiting for tx rings to drain (%d -> %d pkts)\n",
1585 oldcount
, priv
->pending_tx_pkts
);
1590 priv
->tx_wait
= NULL
;
1592 wiphy_err(hw
->wiphy
, "tx rings stuck for %d ms\n",
1593 MWL8K_TX_WAIT_TIMEOUT_MS
);
1594 mwl8k_dump_tx_rings(hw
);
1595 priv
->hw_restart_in_progress
= true;
1596 ieee80211_queue_work(hw
, &priv
->fw_reload
);
1600 priv
->tx_wait
= NULL
;
1601 spin_unlock_bh(&priv
->tx_lock
);
1606 #define MWL8K_TXD_SUCCESS(status) \
1607 ((status) & (MWL8K_TXD_STATUS_OK | \
1608 MWL8K_TXD_STATUS_OK_RETRY | \
1609 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1611 static int mwl8k_tid_queue_mapping(u8 tid
)
1618 return IEEE80211_AC_BE
;
1622 return IEEE80211_AC_BK
;
1626 return IEEE80211_AC_VI
;
1630 return IEEE80211_AC_VO
;
1638 /* The firmware will fill in the rate information
1639 * for each packet that gets queued in the hardware
1640 * and these macros will interpret that info.
1643 #define RI_FORMAT(a) (a & 0x0001)
1644 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1647 mwl8k_txq_reclaim(struct ieee80211_hw
*hw
, int index
, int limit
, int force
)
1649 struct mwl8k_priv
*priv
= hw
->priv
;
1650 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1654 while (txq
->len
> 0 && limit
--) {
1656 struct mwl8k_tx_desc
*tx_desc
;
1659 struct sk_buff
*skb
;
1660 struct ieee80211_tx_info
*info
;
1662 struct ieee80211_sta
*sta
;
1663 struct mwl8k_sta
*sta_info
= NULL
;
1665 struct ieee80211_hdr
*wh
;
1668 tx_desc
= txq
->txd
+ tx
;
1670 status
= le32_to_cpu(tx_desc
->status
);
1672 if (status
& MWL8K_TXD_STATUS_FW_OWNED
) {
1676 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
);
1679 txq
->head
= (tx
+ 1) % MWL8K_TX_DESCS
;
1680 BUG_ON(txq
->len
== 0);
1682 priv
->pending_tx_pkts
--;
1684 addr
= le32_to_cpu(tx_desc
->pkt_phys_addr
);
1685 size
= le16_to_cpu(tx_desc
->pkt_len
);
1687 txq
->skb
[tx
] = NULL
;
1689 BUG_ON(skb
== NULL
);
1690 pci_unmap_single(priv
->pdev
, addr
, size
, PCI_DMA_TODEVICE
);
1692 mwl8k_remove_dma_header(skb
, tx_desc
->qos_control
);
1694 wh
= (struct ieee80211_hdr
*) skb
->data
;
1696 /* Mark descriptor as unused */
1697 tx_desc
->pkt_phys_addr
= 0;
1698 tx_desc
->pkt_len
= 0;
1700 info
= IEEE80211_SKB_CB(skb
);
1701 if (ieee80211_is_data(wh
->frame_control
)) {
1703 sta
= ieee80211_find_sta_by_ifaddr(hw
, wh
->addr1
,
1706 sta_info
= MWL8K_STA(sta
);
1707 BUG_ON(sta_info
== NULL
);
1708 rate_info
= le16_to_cpu(tx_desc
->rate_info
);
1709 /* If rate is < 6.5 Mpbs for an ht station
1710 * do not form an ampdu. If the station is a
1711 * legacy station (format = 0), do not form an
1714 if (RI_RATE_ID_MCS(rate_info
) < 1 ||
1715 RI_FORMAT(rate_info
) == 0) {
1716 sta_info
->is_ampdu_allowed
= false;
1718 sta_info
->is_ampdu_allowed
= true;
1724 ieee80211_tx_info_clear_status(info
);
1726 /* Rate control is happening in the firmware.
1727 * Ensure no tx rate is being reported.
1729 info
->status
.rates
[0].idx
= -1;
1730 info
->status
.rates
[0].count
= 1;
1732 if (MWL8K_TXD_SUCCESS(status
))
1733 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1735 ieee80211_tx_status_irqsafe(hw
, skb
);
1743 /* must be called only when the card's transmit is completely halted */
1744 static void mwl8k_txq_deinit(struct ieee80211_hw
*hw
, int index
)
1746 struct mwl8k_priv
*priv
= hw
->priv
;
1747 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1749 if (txq
->txd
== NULL
)
1752 mwl8k_txq_reclaim(hw
, index
, INT_MAX
, 1);
1757 pci_free_consistent(priv
->pdev
,
1758 MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
),
1759 txq
->txd
, txq
->txd_dma
);
1763 /* caller must hold priv->stream_lock when calling the stream functions */
1764 static struct mwl8k_ampdu_stream
*
1765 mwl8k_add_stream(struct ieee80211_hw
*hw
, struct ieee80211_sta
*sta
, u8 tid
)
1767 struct mwl8k_ampdu_stream
*stream
;
1768 struct mwl8k_priv
*priv
= hw
->priv
;
1771 for (i
= 0; i
< MWL8K_NUM_AMPDU_STREAMS
; i
++) {
1772 stream
= &priv
->ampdu
[i
];
1773 if (stream
->state
== AMPDU_NO_STREAM
) {
1775 stream
->state
= AMPDU_STREAM_NEW
;
1778 wiphy_debug(hw
->wiphy
, "Added a new stream for %pM %d",
1787 mwl8k_start_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1791 /* if the stream has already been started, don't start it again */
1792 if (stream
->state
!= AMPDU_STREAM_NEW
)
1794 ret
= ieee80211_start_tx_ba_session(stream
->sta
, stream
->tid
, 0);
1796 wiphy_debug(hw
->wiphy
, "Failed to start stream for %pM %d: "
1797 "%d\n", stream
->sta
->addr
, stream
->tid
, ret
);
1799 wiphy_debug(hw
->wiphy
, "Started stream for %pM %d\n",
1800 stream
->sta
->addr
, stream
->tid
);
1805 mwl8k_remove_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1807 wiphy_debug(hw
->wiphy
, "Remove stream for %pM %d\n", stream
->sta
->addr
,
1809 memset(stream
, 0, sizeof(*stream
));
1812 static struct mwl8k_ampdu_stream
*
1813 mwl8k_lookup_stream(struct ieee80211_hw
*hw
, u8
*addr
, u8 tid
)
1815 struct mwl8k_priv
*priv
= hw
->priv
;
1818 for (i
= 0; i
< MWL8K_NUM_AMPDU_STREAMS
; i
++) {
1819 struct mwl8k_ampdu_stream
*stream
;
1820 stream
= &priv
->ampdu
[i
];
1821 if (stream
->state
== AMPDU_NO_STREAM
)
1823 if (!memcmp(stream
->sta
->addr
, addr
, ETH_ALEN
) &&
1830 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1831 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta
*sta
, u8 tid
)
1833 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1834 struct tx_traffic_info
*tx_stats
;
1836 BUG_ON(tid
>= MWL8K_MAX_TID
);
1837 tx_stats
= &sta_info
->tx_stats
[tid
];
1839 return sta_info
->is_ampdu_allowed
&&
1840 tx_stats
->pkts
> MWL8K_AMPDU_PACKET_THRESHOLD
;
1843 static inline void mwl8k_tx_count_packet(struct ieee80211_sta
*sta
, u8 tid
)
1845 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1846 struct tx_traffic_info
*tx_stats
;
1848 BUG_ON(tid
>= MWL8K_MAX_TID
);
1849 tx_stats
= &sta_info
->tx_stats
[tid
];
1851 if (tx_stats
->start_time
== 0)
1852 tx_stats
->start_time
= jiffies
;
1854 /* reset the packet count after each second elapses. If the number of
1855 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1856 * an ampdu stream to be started.
1858 if (jiffies
- tx_stats
->start_time
> HZ
) {
1860 tx_stats
->start_time
= 0;
1865 /* The hardware ampdu queues start from 5.
1866 * txpriorities for ampdu queues are
1867 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1868 * and queue 3 is lowest (queue 4 is reserved)
1873 mwl8k_txq_xmit(struct ieee80211_hw
*hw
,
1875 struct ieee80211_sta
*sta
,
1876 struct sk_buff
*skb
)
1878 struct mwl8k_priv
*priv
= hw
->priv
;
1879 struct ieee80211_tx_info
*tx_info
;
1880 struct mwl8k_vif
*mwl8k_vif
;
1881 struct ieee80211_hdr
*wh
;
1882 struct mwl8k_tx_queue
*txq
;
1883 struct mwl8k_tx_desc
*tx
;
1890 struct mwl8k_ampdu_stream
*stream
= NULL
;
1891 bool start_ba_session
= false;
1892 bool mgmtframe
= false;
1893 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)skb
->data
;
1894 bool eapol_frame
= false;
1896 wh
= (struct ieee80211_hdr
*)skb
->data
;
1897 if (ieee80211_is_data_qos(wh
->frame_control
))
1898 qos
= le16_to_cpu(*((__le16
*)ieee80211_get_qos_ctl(wh
)));
1902 if (skb
->protocol
== cpu_to_be16(ETH_P_PAE
))
1905 if (ieee80211_is_mgmt(wh
->frame_control
))
1909 mwl8k_encapsulate_tx_frame(priv
, skb
);
1911 mwl8k_add_dma_header(priv
, skb
, 0, 0);
1913 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1915 tx_info
= IEEE80211_SKB_CB(skb
);
1916 mwl8k_vif
= MWL8K_VIF(tx_info
->control
.vif
);
1918 if (tx_info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
1919 wh
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
1920 wh
->seq_ctrl
|= cpu_to_le16(mwl8k_vif
->seqno
);
1921 mwl8k_vif
->seqno
+= 0x10;
1924 /* Setup firmware control bit fields for each frame type. */
1927 if (ieee80211_is_mgmt(wh
->frame_control
) ||
1928 ieee80211_is_ctl(wh
->frame_control
)) {
1930 qos
|= MWL8K_QOS_QLEN_UNSPEC
| MWL8K_QOS_EOSP
;
1931 } else if (ieee80211_is_data(wh
->frame_control
)) {
1933 if (is_multicast_ether_addr(wh
->addr1
))
1934 txstatus
|= MWL8K_TXD_STATUS_MULTICAST_TX
;
1936 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
1937 if (tx_info
->flags
& IEEE80211_TX_CTL_AMPDU
)
1938 qos
|= MWL8K_QOS_ACK_POLICY_BLOCKACK
;
1940 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
1943 /* Queue ADDBA request in the respective data queue. While setting up
1944 * the ampdu stream, mac80211 queues further packets for that
1945 * particular ra/tid pair. However, packets piled up in the hardware
1946 * for that ra/tid pair will still go out. ADDBA request and the
1947 * related data packets going out from different queues asynchronously
1948 * will cause a shift in the receiver window which might result in
1949 * ampdu packets getting dropped at the receiver after the stream has
1952 if (unlikely(ieee80211_is_action(wh
->frame_control
) &&
1953 mgmt
->u
.action
.category
== WLAN_CATEGORY_BACK
&&
1954 mgmt
->u
.action
.u
.addba_req
.action_code
== WLAN_ACTION_ADDBA_REQ
&&
1956 u16 capab
= le16_to_cpu(mgmt
->u
.action
.u
.addba_req
.capab
);
1957 tid
= (capab
& IEEE80211_ADDBA_PARAM_TID_MASK
) >> 2;
1958 index
= mwl8k_tid_queue_mapping(tid
);
1963 if (priv
->ap_fw
&& sta
&& sta
->ht_cap
.ht_supported
&& !eapol_frame
&&
1964 ieee80211_is_data_qos(wh
->frame_control
)) {
1966 mwl8k_tx_count_packet(sta
, tid
);
1967 spin_lock(&priv
->stream_lock
);
1968 stream
= mwl8k_lookup_stream(hw
, sta
->addr
, tid
);
1969 if (stream
!= NULL
) {
1970 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
1971 WARN_ON(!(qos
& MWL8K_QOS_ACK_POLICY_BLOCKACK
));
1972 txpriority
= (BA_QUEUE
+ stream
->idx
) %
1974 if (stream
->idx
<= 1)
1975 index
= stream
->idx
+
1976 MWL8K_TX_WMM_QUEUES
;
1978 } else if (stream
->state
== AMPDU_STREAM_NEW
) {
1979 /* We get here if the driver sends us packets
1980 * after we've initiated a stream, but before
1981 * our ampdu_action routine has been called
1982 * with IEEE80211_AMPDU_TX_START to get the SSN
1983 * for the ADDBA request. So this packet can
1984 * go out with no risk of sequence number
1985 * mismatch. No special handling is required.
1988 /* Drop packets that would go out after the
1989 * ADDBA request was sent but before the ADDBA
1990 * response is received. If we don't do this,
1991 * the recipient would probably receive it
1992 * after the ADDBA request with SSN 0. This
1993 * will cause the recipient's BA receive window
1994 * to shift, which would cause the subsequent
1995 * packets in the BA stream to be discarded.
1996 * mac80211 queues our packets for us in this
1997 * case, so this is really just a safety check.
1999 wiphy_warn(hw
->wiphy
,
2000 "Cannot send packet while ADDBA "
2001 "dialog is underway.\n");
2002 spin_unlock(&priv
->stream_lock
);
2007 /* Defer calling mwl8k_start_stream so that the current
2008 * skb can go out before the ADDBA request. This
2009 * prevents sequence number mismatch at the recepient
2010 * as described above.
2012 if (mwl8k_ampdu_allowed(sta
, tid
)) {
2013 stream
= mwl8k_add_stream(hw
, sta
, tid
);
2015 start_ba_session
= true;
2018 spin_unlock(&priv
->stream_lock
);
2020 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
2021 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
2024 dma
= pci_map_single(priv
->pdev
, skb
->data
,
2025 skb
->len
, PCI_DMA_TODEVICE
);
2027 if (pci_dma_mapping_error(priv
->pdev
, dma
)) {
2028 wiphy_debug(hw
->wiphy
,
2029 "failed to dma map skb, dropping TX frame.\n");
2030 if (start_ba_session
) {
2031 spin_lock(&priv
->stream_lock
);
2032 mwl8k_remove_stream(hw
, stream
);
2033 spin_unlock(&priv
->stream_lock
);
2039 spin_lock_bh(&priv
->tx_lock
);
2041 txq
= priv
->txq
+ index
;
2043 /* Mgmt frames that go out frequently are probe
2044 * responses. Other mgmt frames got out relatively
2045 * infrequently. Hence reserve 2 buffers so that
2046 * other mgmt frames do not get dropped due to an
2047 * already queued probe response in one of the
2051 if (txq
->len
>= MWL8K_TX_DESCS
- 2) {
2052 if (!mgmtframe
|| txq
->len
== MWL8K_TX_DESCS
) {
2053 if (start_ba_session
) {
2054 spin_lock(&priv
->stream_lock
);
2055 mwl8k_remove_stream(hw
, stream
);
2056 spin_unlock(&priv
->stream_lock
);
2058 spin_unlock_bh(&priv
->tx_lock
);
2059 pci_unmap_single(priv
->pdev
, dma
, skb
->len
,
2066 BUG_ON(txq
->skb
[txq
->tail
] != NULL
);
2067 txq
->skb
[txq
->tail
] = skb
;
2069 tx
= txq
->txd
+ txq
->tail
;
2070 tx
->data_rate
= txdatarate
;
2071 tx
->tx_priority
= txpriority
;
2072 tx
->qos_control
= cpu_to_le16(qos
);
2073 tx
->pkt_phys_addr
= cpu_to_le32(dma
);
2074 tx
->pkt_len
= cpu_to_le16(skb
->len
);
2076 if (!priv
->ap_fw
&& sta
!= NULL
)
2077 tx
->peer_id
= MWL8K_STA(sta
)->peer_id
;
2081 if (priv
->ap_fw
&& ieee80211_is_data(wh
->frame_control
) && !eapol_frame
)
2082 tx
->timestamp
= cpu_to_le32(ioread32(priv
->regs
+
2083 MWL8K_HW_TIMER_REGISTER
));
2088 tx
->status
= cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
| txstatus
);
2091 priv
->pending_tx_pkts
++;
2094 if (txq
->tail
== MWL8K_TX_DESCS
)
2097 mwl8k_tx_start(priv
);
2099 spin_unlock_bh(&priv
->tx_lock
);
2101 /* Initiate the ampdu session here */
2102 if (start_ba_session
) {
2103 spin_lock(&priv
->stream_lock
);
2104 if (mwl8k_start_stream(hw
, stream
))
2105 mwl8k_remove_stream(hw
, stream
);
2106 spin_unlock(&priv
->stream_lock
);
2114 * We have the following requirements for issuing firmware commands:
2115 * - Some commands require that the packet transmit path is idle when
2116 * the command is issued. (For simplicity, we'll just quiesce the
2117 * transmit path for every command.)
2118 * - There are certain sequences of commands that need to be issued to
2119 * the hardware sequentially, with no other intervening commands.
2121 * This leads to an implementation of a "firmware lock" as a mutex that
2122 * can be taken recursively, and which is taken by both the low-level
2123 * command submission function (mwl8k_post_cmd) as well as any users of
2124 * that function that require issuing of an atomic sequence of commands,
2125 * and quiesces the transmit path whenever it's taken.
2127 static int mwl8k_fw_lock(struct ieee80211_hw
*hw
)
2129 struct mwl8k_priv
*priv
= hw
->priv
;
2131 if (priv
->fw_mutex_owner
!= current
) {
2134 mutex_lock(&priv
->fw_mutex
);
2135 ieee80211_stop_queues(hw
);
2137 rc
= mwl8k_tx_wait_empty(hw
);
2139 if (!priv
->hw_restart_in_progress
)
2140 ieee80211_wake_queues(hw
);
2142 mutex_unlock(&priv
->fw_mutex
);
2147 priv
->fw_mutex_owner
= current
;
2150 priv
->fw_mutex_depth
++;
2155 static void mwl8k_fw_unlock(struct ieee80211_hw
*hw
)
2157 struct mwl8k_priv
*priv
= hw
->priv
;
2159 if (!--priv
->fw_mutex_depth
) {
2160 if (!priv
->hw_restart_in_progress
)
2161 ieee80211_wake_queues(hw
);
2163 priv
->fw_mutex_owner
= NULL
;
2164 mutex_unlock(&priv
->fw_mutex
);
2168 static void mwl8k_enable_bsses(struct ieee80211_hw
*hw
, bool enable
,
2172 * Command processing.
2175 /* Timeout firmware commands after 10s */
2176 #define MWL8K_CMD_TIMEOUT_MS 10000
2178 static int mwl8k_post_cmd(struct ieee80211_hw
*hw
, struct mwl8k_cmd_pkt
*cmd
)
2180 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
2181 struct mwl8k_priv
*priv
= hw
->priv
;
2182 void __iomem
*regs
= priv
->regs
;
2183 dma_addr_t dma_addr
;
2184 unsigned int dma_size
;
2186 unsigned long timeout
= 0;
2190 wiphy_dbg(hw
->wiphy
, "Posting %s [%d]\n",
2191 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)), cmd
->macid
);
2193 /* Before posting firmware commands that could change the hardware
2194 * characteristics, make sure that all BSSes are stopped temporary.
2195 * Enable these stopped BSSes after completion of the commands
2198 rc
= mwl8k_fw_lock(hw
);
2202 if (priv
->ap_fw
&& priv
->running_bsses
) {
2203 switch (le16_to_cpu(cmd
->code
)) {
2204 case MWL8K_CMD_SET_RF_CHANNEL
:
2205 case MWL8K_CMD_RADIO_CONTROL
:
2206 case MWL8K_CMD_RF_TX_POWER
:
2207 case MWL8K_CMD_TX_POWER
:
2208 case MWL8K_CMD_RF_ANTENNA
:
2209 case MWL8K_CMD_RTS_THRESHOLD
:
2210 case MWL8K_CMD_MIMO_CONFIG
:
2211 bitmap
= priv
->running_bsses
;
2212 mwl8k_enable_bsses(hw
, false, bitmap
);
2217 cmd
->result
= (__force __le16
) 0xffff;
2218 dma_size
= le16_to_cpu(cmd
->length
);
2219 dma_addr
= pci_map_single(priv
->pdev
, cmd
, dma_size
,
2220 PCI_DMA_BIDIRECTIONAL
);
2221 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
2224 priv
->hostcmd_wait
= &cmd_wait
;
2225 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
2226 iowrite32(MWL8K_H2A_INT_DOORBELL
,
2227 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2228 iowrite32(MWL8K_H2A_INT_DUMMY
,
2229 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2231 timeout
= wait_for_completion_timeout(&cmd_wait
,
2232 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS
));
2234 priv
->hostcmd_wait
= NULL
;
2237 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2238 PCI_DMA_BIDIRECTIONAL
);
2241 wiphy_err(hw
->wiphy
, "Command %s timeout after %u ms\n",
2242 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2243 MWL8K_CMD_TIMEOUT_MS
);
2248 ms
= MWL8K_CMD_TIMEOUT_MS
- jiffies_to_msecs(timeout
);
2250 rc
= cmd
->result
? -EINVAL
: 0;
2252 wiphy_err(hw
->wiphy
, "Command %s error 0x%x\n",
2253 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2254 le16_to_cpu(cmd
->result
));
2256 wiphy_notice(hw
->wiphy
, "Command %s took %d ms\n",
2257 mwl8k_cmd_name(cmd
->code
,
2263 mwl8k_enable_bsses(hw
, true, bitmap
);
2265 mwl8k_fw_unlock(hw
);
2270 static int mwl8k_post_pervif_cmd(struct ieee80211_hw
*hw
,
2271 struct ieee80211_vif
*vif
,
2272 struct mwl8k_cmd_pkt
*cmd
)
2275 cmd
->macid
= MWL8K_VIF(vif
)->macid
;
2276 return mwl8k_post_cmd(hw
, cmd
);
2280 * Setup code shared between STA and AP firmware images.
2282 static void mwl8k_setup_2ghz_band(struct ieee80211_hw
*hw
)
2284 struct mwl8k_priv
*priv
= hw
->priv
;
2286 BUILD_BUG_ON(sizeof(priv
->channels_24
) != sizeof(mwl8k_channels_24
));
2287 memcpy(priv
->channels_24
, mwl8k_channels_24
, sizeof(mwl8k_channels_24
));
2289 BUILD_BUG_ON(sizeof(priv
->rates_24
) != sizeof(mwl8k_rates_24
));
2290 memcpy(priv
->rates_24
, mwl8k_rates_24
, sizeof(mwl8k_rates_24
));
2292 priv
->band_24
.band
= IEEE80211_BAND_2GHZ
;
2293 priv
->band_24
.channels
= priv
->channels_24
;
2294 priv
->band_24
.n_channels
= ARRAY_SIZE(mwl8k_channels_24
);
2295 priv
->band_24
.bitrates
= priv
->rates_24
;
2296 priv
->band_24
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_24
);
2298 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band_24
;
2301 static void mwl8k_setup_5ghz_band(struct ieee80211_hw
*hw
)
2303 struct mwl8k_priv
*priv
= hw
->priv
;
2305 BUILD_BUG_ON(sizeof(priv
->channels_50
) != sizeof(mwl8k_channels_50
));
2306 memcpy(priv
->channels_50
, mwl8k_channels_50
, sizeof(mwl8k_channels_50
));
2308 BUILD_BUG_ON(sizeof(priv
->rates_50
) != sizeof(mwl8k_rates_50
));
2309 memcpy(priv
->rates_50
, mwl8k_rates_50
, sizeof(mwl8k_rates_50
));
2311 priv
->band_50
.band
= IEEE80211_BAND_5GHZ
;
2312 priv
->band_50
.channels
= priv
->channels_50
;
2313 priv
->band_50
.n_channels
= ARRAY_SIZE(mwl8k_channels_50
);
2314 priv
->band_50
.bitrates
= priv
->rates_50
;
2315 priv
->band_50
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_50
);
2317 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->band_50
;
2321 * CMD_GET_HW_SPEC (STA version).
2323 struct mwl8k_cmd_get_hw_spec_sta
{
2324 struct mwl8k_cmd_pkt header
;
2326 __u8 host_interface
;
2328 __u8 perm_addr
[ETH_ALEN
];
2333 __u8 mcs_bitmap
[16];
2334 __le32 rx_queue_ptr
;
2335 __le32 num_tx_queues
;
2336 __le32 tx_queue_ptrs
[MWL8K_TX_WMM_QUEUES
];
2338 __le32 num_tx_desc_per_queue
;
2342 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2343 #define MWL8K_CAP_GREENFIELD 0x08000000
2344 #define MWL8K_CAP_AMPDU 0x04000000
2345 #define MWL8K_CAP_RX_STBC 0x01000000
2346 #define MWL8K_CAP_TX_STBC 0x00800000
2347 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2348 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2349 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2350 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2351 #define MWL8K_CAP_DELAY_BA 0x00003000
2352 #define MWL8K_CAP_MIMO 0x00000200
2353 #define MWL8K_CAP_40MHZ 0x00000100
2354 #define MWL8K_CAP_BAND_MASK 0x00000007
2355 #define MWL8K_CAP_5GHZ 0x00000004
2356 #define MWL8K_CAP_2GHZ4 0x00000001
2359 mwl8k_set_ht_caps(struct ieee80211_hw
*hw
,
2360 struct ieee80211_supported_band
*band
, u32 cap
)
2365 band
->ht_cap
.ht_supported
= 1;
2367 if (cap
& MWL8K_CAP_MAX_AMSDU
)
2368 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
2369 if (cap
& MWL8K_CAP_GREENFIELD
)
2370 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_GRN_FLD
;
2371 if (cap
& MWL8K_CAP_AMPDU
) {
2372 hw
->flags
|= IEEE80211_HW_AMPDU_AGGREGATION
;
2373 band
->ht_cap
.ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
;
2374 band
->ht_cap
.ampdu_density
= IEEE80211_HT_MPDU_DENSITY_NONE
;
2376 if (cap
& MWL8K_CAP_RX_STBC
)
2377 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_RX_STBC
;
2378 if (cap
& MWL8K_CAP_TX_STBC
)
2379 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_TX_STBC
;
2380 if (cap
& MWL8K_CAP_SHORTGI_40MHZ
)
2381 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_40
;
2382 if (cap
& MWL8K_CAP_SHORTGI_20MHZ
)
2383 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_20
;
2384 if (cap
& MWL8K_CAP_DELAY_BA
)
2385 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_DELAY_BA
;
2386 if (cap
& MWL8K_CAP_40MHZ
)
2387 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
2389 rx_streams
= hweight32(cap
& MWL8K_CAP_RX_ANTENNA_MASK
);
2390 tx_streams
= hweight32(cap
& MWL8K_CAP_TX_ANTENNA_MASK
);
2392 band
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2393 if (rx_streams
>= 2)
2394 band
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2395 if (rx_streams
>= 3)
2396 band
->ht_cap
.mcs
.rx_mask
[2] = 0xff;
2397 band
->ht_cap
.mcs
.rx_mask
[4] = 0x01;
2398 band
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2400 if (rx_streams
!= tx_streams
) {
2401 band
->ht_cap
.mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
2402 band
->ht_cap
.mcs
.tx_params
|= (tx_streams
- 1) <<
2403 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2408 mwl8k_set_caps(struct ieee80211_hw
*hw
, u32 caps
)
2410 struct mwl8k_priv
*priv
= hw
->priv
;
2415 if ((caps
& MWL8K_CAP_2GHZ4
) || !(caps
& MWL8K_CAP_BAND_MASK
)) {
2416 mwl8k_setup_2ghz_band(hw
);
2417 if (caps
& MWL8K_CAP_MIMO
)
2418 mwl8k_set_ht_caps(hw
, &priv
->band_24
, caps
);
2421 if (caps
& MWL8K_CAP_5GHZ
) {
2422 mwl8k_setup_5ghz_band(hw
);
2423 if (caps
& MWL8K_CAP_MIMO
)
2424 mwl8k_set_ht_caps(hw
, &priv
->band_50
, caps
);
2430 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw
*hw
)
2432 struct mwl8k_priv
*priv
= hw
->priv
;
2433 struct mwl8k_cmd_get_hw_spec_sta
*cmd
;
2437 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2441 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2442 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2444 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2445 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2446 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2447 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2448 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
2449 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[i
].txd_dma
);
2450 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2451 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2453 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2456 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2457 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2458 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2459 priv
->hw_rev
= cmd
->hw_rev
;
2460 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2461 priv
->ap_macids_supported
= 0x00000000;
2462 priv
->sta_macids_supported
= 0x00000001;
2470 * CMD_GET_HW_SPEC (AP version).
2472 struct mwl8k_cmd_get_hw_spec_ap
{
2473 struct mwl8k_cmd_pkt header
;
2475 __u8 host_interface
;
2478 __u8 perm_addr
[ETH_ALEN
];
2489 __le32 fw_api_version
;
2491 __le32 num_of_ampdu_queues
;
2492 __le32 wcbbase_ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
2495 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw
*hw
)
2497 struct mwl8k_priv
*priv
= hw
->priv
;
2498 struct mwl8k_cmd_get_hw_spec_ap
*cmd
;
2502 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2506 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2507 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2509 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2510 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2512 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2517 api_version
= le32_to_cpu(cmd
->fw_api_version
);
2518 if (priv
->device_info
->fw_api_ap
!= api_version
) {
2519 printk(KERN_ERR
"%s: Unsupported fw API version for %s."
2520 " Expected %d got %d.\n", MWL8K_NAME
,
2521 priv
->device_info
->part_name
,
2522 priv
->device_info
->fw_api_ap
,
2527 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2528 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2529 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2530 priv
->hw_rev
= cmd
->hw_rev
;
2531 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2532 priv
->ap_macids_supported
= 0x000000ff;
2533 priv
->sta_macids_supported
= 0x00000100;
2534 priv
->num_ampdu_queues
= le32_to_cpu(cmd
->num_of_ampdu_queues
);
2535 if (priv
->num_ampdu_queues
> MWL8K_MAX_AMPDU_QUEUES
) {
2536 wiphy_warn(hw
->wiphy
, "fw reported %d ampdu queues"
2537 " but we only support %d.\n",
2538 priv
->num_ampdu_queues
,
2539 MWL8K_MAX_AMPDU_QUEUES
);
2540 priv
->num_ampdu_queues
= MWL8K_MAX_AMPDU_QUEUES
;
2542 off
= le32_to_cpu(cmd
->rxwrptr
) & 0xffff;
2543 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2545 off
= le32_to_cpu(cmd
->rxrdptr
) & 0xffff;
2546 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2548 priv
->txq_offset
[0] = le32_to_cpu(cmd
->wcbbase0
) & 0xffff;
2549 priv
->txq_offset
[1] = le32_to_cpu(cmd
->wcbbase1
) & 0xffff;
2550 priv
->txq_offset
[2] = le32_to_cpu(cmd
->wcbbase2
) & 0xffff;
2551 priv
->txq_offset
[3] = le32_to_cpu(cmd
->wcbbase3
) & 0xffff;
2553 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++)
2554 priv
->txq_offset
[i
+ MWL8K_TX_WMM_QUEUES
] =
2555 le32_to_cpu(cmd
->wcbbase_ampdu
[i
]) & 0xffff;
2566 struct mwl8k_cmd_set_hw_spec
{
2567 struct mwl8k_cmd_pkt header
;
2569 __u8 host_interface
;
2571 __u8 perm_addr
[ETH_ALEN
];
2576 __le32 rx_queue_ptr
;
2577 __le32 num_tx_queues
;
2578 __le32 tx_queue_ptrs
[MWL8K_MAX_TX_QUEUES
];
2580 __le32 num_tx_desc_per_queue
;
2584 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2585 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2586 * the packets that are queued for more than 500ms, will be dropped in the
2587 * hardware. This helps minimizing the issues caused due to head-of-line
2588 * blocking where a slow client can hog the bandwidth and affect traffic to a
2591 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2592 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2593 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2594 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2595 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2597 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw
*hw
)
2599 struct mwl8k_priv
*priv
= hw
->priv
;
2600 struct mwl8k_cmd_set_hw_spec
*cmd
;
2604 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2608 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_HW_SPEC
);
2609 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2611 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2612 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2613 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2616 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2617 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2618 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2619 * priority is interpreted the right way in firmware.
2621 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
2622 int j
= mwl8k_tx_queues(priv
) - 1 - i
;
2623 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[j
].txd_dma
);
2626 cmd
->flags
= cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT
|
2627 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP
|
2628 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON
|
2629 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY
|
2630 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR
);
2631 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2632 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2634 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2641 * CMD_MAC_MULTICAST_ADR.
2643 struct mwl8k_cmd_mac_multicast_adr
{
2644 struct mwl8k_cmd_pkt header
;
2647 __u8 addr
[0][ETH_ALEN
];
2650 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2651 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2652 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2653 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2655 static struct mwl8k_cmd_pkt
*
2656 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw
*hw
, int allmulti
,
2657 struct netdev_hw_addr_list
*mc_list
)
2659 struct mwl8k_priv
*priv
= hw
->priv
;
2660 struct mwl8k_cmd_mac_multicast_adr
*cmd
;
2665 mc_count
= netdev_hw_addr_list_count(mc_list
);
2667 if (allmulti
|| mc_count
> priv
->num_mcaddrs
) {
2672 size
= sizeof(*cmd
) + mc_count
* ETH_ALEN
;
2674 cmd
= kzalloc(size
, GFP_ATOMIC
);
2678 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR
);
2679 cmd
->header
.length
= cpu_to_le16(size
);
2680 cmd
->action
= cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED
|
2681 MWL8K_ENABLE_RX_BROADCAST
);
2684 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST
);
2685 } else if (mc_count
) {
2686 struct netdev_hw_addr
*ha
;
2689 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST
);
2690 cmd
->numaddr
= cpu_to_le16(mc_count
);
2691 netdev_hw_addr_list_for_each(ha
, mc_list
) {
2692 memcpy(cmd
->addr
[i
], ha
->addr
, ETH_ALEN
);
2696 return &cmd
->header
;
2702 struct mwl8k_cmd_get_stat
{
2703 struct mwl8k_cmd_pkt header
;
2707 #define MWL8K_STAT_ACK_FAILURE 9
2708 #define MWL8K_STAT_RTS_FAILURE 12
2709 #define MWL8K_STAT_FCS_ERROR 24
2710 #define MWL8K_STAT_RTS_SUCCESS 11
2712 static int mwl8k_cmd_get_stat(struct ieee80211_hw
*hw
,
2713 struct ieee80211_low_level_stats
*stats
)
2715 struct mwl8k_cmd_get_stat
*cmd
;
2718 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2722 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_STAT
);
2723 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2725 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2727 stats
->dot11ACKFailureCount
=
2728 le32_to_cpu(cmd
->stats
[MWL8K_STAT_ACK_FAILURE
]);
2729 stats
->dot11RTSFailureCount
=
2730 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_FAILURE
]);
2731 stats
->dot11FCSErrorCount
=
2732 le32_to_cpu(cmd
->stats
[MWL8K_STAT_FCS_ERROR
]);
2733 stats
->dot11RTSSuccessCount
=
2734 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_SUCCESS
]);
2742 * CMD_RADIO_CONTROL.
2744 struct mwl8k_cmd_radio_control
{
2745 struct mwl8k_cmd_pkt header
;
2752 mwl8k_cmd_radio_control(struct ieee80211_hw
*hw
, bool enable
, bool force
)
2754 struct mwl8k_priv
*priv
= hw
->priv
;
2755 struct mwl8k_cmd_radio_control
*cmd
;
2758 if (enable
== priv
->radio_on
&& !force
)
2761 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2765 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RADIO_CONTROL
);
2766 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2767 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2768 cmd
->control
= cpu_to_le16(priv
->radio_short_preamble
? 3 : 1);
2769 cmd
->radio_on
= cpu_to_le16(enable
? 0x0001 : 0x0000);
2771 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2775 priv
->radio_on
= enable
;
2780 static int mwl8k_cmd_radio_disable(struct ieee80211_hw
*hw
)
2782 return mwl8k_cmd_radio_control(hw
, 0, 0);
2785 static int mwl8k_cmd_radio_enable(struct ieee80211_hw
*hw
)
2787 return mwl8k_cmd_radio_control(hw
, 1, 0);
2791 mwl8k_set_radio_preamble(struct ieee80211_hw
*hw
, bool short_preamble
)
2793 struct mwl8k_priv
*priv
= hw
->priv
;
2795 priv
->radio_short_preamble
= short_preamble
;
2797 return mwl8k_cmd_radio_control(hw
, 1, 1);
2803 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2805 struct mwl8k_cmd_rf_tx_power
{
2806 struct mwl8k_cmd_pkt header
;
2808 __le16 support_level
;
2809 __le16 current_level
;
2811 __le16 power_level_list
[MWL8K_RF_TX_POWER_LEVEL_TOTAL
];
2814 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw
*hw
, int dBm
)
2816 struct mwl8k_cmd_rf_tx_power
*cmd
;
2819 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2823 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_TX_POWER
);
2824 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2825 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2826 cmd
->support_level
= cpu_to_le16(dBm
);
2828 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2837 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2839 struct mwl8k_cmd_tx_power
{
2840 struct mwl8k_cmd_pkt header
;
2846 __le16 power_level_list
[MWL8K_TX_POWER_LEVEL_TOTAL
];
2849 static int mwl8k_cmd_tx_power(struct ieee80211_hw
*hw
,
2850 struct ieee80211_conf
*conf
,
2853 struct ieee80211_channel
*channel
= conf
->chandef
.chan
;
2854 enum nl80211_channel_type channel_type
=
2855 cfg80211_get_chandef_type(&conf
->chandef
);
2856 struct mwl8k_cmd_tx_power
*cmd
;
2860 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2864 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_TX_POWER
);
2865 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2866 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET_LIST
);
2868 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2869 cmd
->band
= cpu_to_le16(0x1);
2870 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2871 cmd
->band
= cpu_to_le16(0x4);
2873 cmd
->channel
= cpu_to_le16(channel
->hw_value
);
2875 if (channel_type
== NL80211_CHAN_NO_HT
||
2876 channel_type
== NL80211_CHAN_HT20
) {
2877 cmd
->bw
= cpu_to_le16(0x2);
2879 cmd
->bw
= cpu_to_le16(0x4);
2880 if (channel_type
== NL80211_CHAN_HT40MINUS
)
2881 cmd
->sub_ch
= cpu_to_le16(0x3);
2882 else if (channel_type
== NL80211_CHAN_HT40PLUS
)
2883 cmd
->sub_ch
= cpu_to_le16(0x1);
2886 for (i
= 0; i
< MWL8K_TX_POWER_LEVEL_TOTAL
; i
++)
2887 cmd
->power_level_list
[i
] = cpu_to_le16(pwr
);
2889 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2898 struct mwl8k_cmd_rf_antenna
{
2899 struct mwl8k_cmd_pkt header
;
2904 #define MWL8K_RF_ANTENNA_RX 1
2905 #define MWL8K_RF_ANTENNA_TX 2
2908 mwl8k_cmd_rf_antenna(struct ieee80211_hw
*hw
, int antenna
, int mask
)
2910 struct mwl8k_cmd_rf_antenna
*cmd
;
2913 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2917 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_ANTENNA
);
2918 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2919 cmd
->antenna
= cpu_to_le16(antenna
);
2920 cmd
->mode
= cpu_to_le16(mask
);
2922 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2931 struct mwl8k_cmd_set_beacon
{
2932 struct mwl8k_cmd_pkt header
;
2937 static int mwl8k_cmd_set_beacon(struct ieee80211_hw
*hw
,
2938 struct ieee80211_vif
*vif
, u8
*beacon
, int len
)
2940 struct mwl8k_cmd_set_beacon
*cmd
;
2943 cmd
= kzalloc(sizeof(*cmd
) + len
, GFP_KERNEL
);
2947 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_BEACON
);
2948 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
) + len
);
2949 cmd
->beacon_len
= cpu_to_le16(len
);
2950 memcpy(cmd
->beacon
, beacon
, len
);
2952 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
2961 struct mwl8k_cmd_set_pre_scan
{
2962 struct mwl8k_cmd_pkt header
;
2965 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw
*hw
)
2967 struct mwl8k_cmd_set_pre_scan
*cmd
;
2970 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2974 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN
);
2975 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2977 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2984 * CMD_SET_POST_SCAN.
2986 struct mwl8k_cmd_set_post_scan
{
2987 struct mwl8k_cmd_pkt header
;
2989 __u8 bssid
[ETH_ALEN
];
2993 mwl8k_cmd_set_post_scan(struct ieee80211_hw
*hw
, const __u8
*mac
)
2995 struct mwl8k_cmd_set_post_scan
*cmd
;
2998 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3002 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_POST_SCAN
);
3003 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3005 memcpy(cmd
->bssid
, mac
, ETH_ALEN
);
3007 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3014 * CMD_SET_RF_CHANNEL.
3016 struct mwl8k_cmd_set_rf_channel
{
3017 struct mwl8k_cmd_pkt header
;
3019 __u8 current_channel
;
3020 __le32 channel_flags
;
3023 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw
*hw
,
3024 struct ieee80211_conf
*conf
)
3026 struct ieee80211_channel
*channel
= conf
->chandef
.chan
;
3027 enum nl80211_channel_type channel_type
=
3028 cfg80211_get_chandef_type(&conf
->chandef
);
3029 struct mwl8k_cmd_set_rf_channel
*cmd
;
3032 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3036 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL
);
3037 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3038 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3039 cmd
->current_channel
= channel
->hw_value
;
3041 if (channel
->band
== IEEE80211_BAND_2GHZ
)
3042 cmd
->channel_flags
|= cpu_to_le32(0x00000001);
3043 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
3044 cmd
->channel_flags
|= cpu_to_le32(0x00000004);
3046 if (channel_type
== NL80211_CHAN_NO_HT
||
3047 channel_type
== NL80211_CHAN_HT20
)
3048 cmd
->channel_flags
|= cpu_to_le32(0x00000080);
3049 else if (channel_type
== NL80211_CHAN_HT40MINUS
)
3050 cmd
->channel_flags
|= cpu_to_le32(0x000001900);
3051 else if (channel_type
== NL80211_CHAN_HT40PLUS
)
3052 cmd
->channel_flags
|= cpu_to_le32(0x000000900);
3054 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3063 #define MWL8K_FRAME_PROT_DISABLED 0x00
3064 #define MWL8K_FRAME_PROT_11G 0x07
3065 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3066 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3068 struct mwl8k_cmd_update_set_aid
{
3069 struct mwl8k_cmd_pkt header
;
3072 /* AP's MAC address (BSSID) */
3073 __u8 bssid
[ETH_ALEN
];
3074 __le16 protection_mode
;
3075 __u8 supp_rates
[14];
3078 static void legacy_rate_mask_to_array(u8
*rates
, u32 mask
)
3084 * Clear nonstandard rate 4.
3088 for (i
= 0, j
= 0; i
< 13; i
++) {
3089 if (mask
& (1 << i
))
3090 rates
[j
++] = mwl8k_rates_24
[i
].hw_value
;
3095 mwl8k_cmd_set_aid(struct ieee80211_hw
*hw
,
3096 struct ieee80211_vif
*vif
, u32 legacy_rate_mask
)
3098 struct mwl8k_cmd_update_set_aid
*cmd
;
3102 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3106 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_AID
);
3107 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3108 cmd
->aid
= cpu_to_le16(vif
->bss_conf
.aid
);
3109 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
3111 if (vif
->bss_conf
.use_cts_prot
) {
3112 prot_mode
= MWL8K_FRAME_PROT_11G
;
3114 switch (vif
->bss_conf
.ht_operation_mode
&
3115 IEEE80211_HT_OP_MODE_PROTECTION
) {
3116 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
3117 prot_mode
= MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY
;
3119 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
3120 prot_mode
= MWL8K_FRAME_PROT_11N_HT_ALL
;
3123 prot_mode
= MWL8K_FRAME_PROT_DISABLED
;
3127 cmd
->protection_mode
= cpu_to_le16(prot_mode
);
3129 legacy_rate_mask_to_array(cmd
->supp_rates
, legacy_rate_mask
);
3131 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3140 struct mwl8k_cmd_set_rate
{
3141 struct mwl8k_cmd_pkt header
;
3142 __u8 legacy_rates
[14];
3144 /* Bitmap for supported MCS codes. */
3150 mwl8k_cmd_set_rate(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
3151 u32 legacy_rate_mask
, u8
*mcs_rates
)
3153 struct mwl8k_cmd_set_rate
*cmd
;
3156 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3160 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATE
);
3161 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3162 legacy_rate_mask_to_array(cmd
->legacy_rates
, legacy_rate_mask
);
3163 memcpy(cmd
->mcs_set
, mcs_rates
, 16);
3165 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3172 * CMD_FINALIZE_JOIN.
3174 #define MWL8K_FJ_BEACON_MAXLEN 128
3176 struct mwl8k_cmd_finalize_join
{
3177 struct mwl8k_cmd_pkt header
;
3178 __le32 sleep_interval
; /* Number of beacon periods to sleep */
3179 __u8 beacon_data
[MWL8K_FJ_BEACON_MAXLEN
];
3182 static int mwl8k_cmd_finalize_join(struct ieee80211_hw
*hw
, void *frame
,
3183 int framelen
, int dtim
)
3185 struct mwl8k_cmd_finalize_join
*cmd
;
3186 struct ieee80211_mgmt
*payload
= frame
;
3190 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3194 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN
);
3195 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3196 cmd
->sleep_interval
= cpu_to_le32(dtim
? dtim
: 1);
3198 payload_len
= framelen
- ieee80211_hdrlen(payload
->frame_control
);
3199 if (payload_len
< 0)
3201 else if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
3202 payload_len
= MWL8K_FJ_BEACON_MAXLEN
;
3204 memcpy(cmd
->beacon_data
, &payload
->u
.beacon
, payload_len
);
3206 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3213 * CMD_SET_RTS_THRESHOLD.
3215 struct mwl8k_cmd_set_rts_threshold
{
3216 struct mwl8k_cmd_pkt header
;
3222 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw
*hw
, int rts_thresh
)
3224 struct mwl8k_cmd_set_rts_threshold
*cmd
;
3227 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3231 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD
);
3232 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3233 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3234 cmd
->threshold
= cpu_to_le16(rts_thresh
);
3236 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3245 struct mwl8k_cmd_set_slot
{
3246 struct mwl8k_cmd_pkt header
;
3251 static int mwl8k_cmd_set_slot(struct ieee80211_hw
*hw
, bool short_slot_time
)
3253 struct mwl8k_cmd_set_slot
*cmd
;
3256 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3260 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_SLOT
);
3261 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3262 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3263 cmd
->short_slot
= short_slot_time
;
3265 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3272 * CMD_SET_EDCA_PARAMS.
3274 struct mwl8k_cmd_set_edca_params
{
3275 struct mwl8k_cmd_pkt header
;
3277 /* See MWL8K_SET_EDCA_XXX below */
3280 /* TX opportunity in units of 32 us */
3285 /* Log exponent of max contention period: 0...15 */
3288 /* Log exponent of min contention period: 0...15 */
3291 /* Adaptive interframe spacing in units of 32us */
3294 /* TX queue to configure */
3298 /* Log exponent of max contention period: 0...15 */
3301 /* Log exponent of min contention period: 0...15 */
3304 /* Adaptive interframe spacing in units of 32us */
3307 /* TX queue to configure */
3313 #define MWL8K_SET_EDCA_CW 0x01
3314 #define MWL8K_SET_EDCA_TXOP 0x02
3315 #define MWL8K_SET_EDCA_AIFS 0x04
3317 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3318 MWL8K_SET_EDCA_TXOP | \
3319 MWL8K_SET_EDCA_AIFS)
3322 mwl8k_cmd_set_edca_params(struct ieee80211_hw
*hw
, __u8 qnum
,
3323 __u16 cw_min
, __u16 cw_max
,
3324 __u8 aifs
, __u16 txop
)
3326 struct mwl8k_priv
*priv
= hw
->priv
;
3327 struct mwl8k_cmd_set_edca_params
*cmd
;
3330 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3334 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS
);
3335 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3336 cmd
->action
= cpu_to_le16(MWL8K_SET_EDCA_ALL
);
3337 cmd
->txop
= cpu_to_le16(txop
);
3339 cmd
->ap
.log_cw_max
= cpu_to_le32(ilog2(cw_max
+ 1));
3340 cmd
->ap
.log_cw_min
= cpu_to_le32(ilog2(cw_min
+ 1));
3341 cmd
->ap
.aifs
= aifs
;
3344 cmd
->sta
.log_cw_max
= (u8
)ilog2(cw_max
+ 1);
3345 cmd
->sta
.log_cw_min
= (u8
)ilog2(cw_min
+ 1);
3346 cmd
->sta
.aifs
= aifs
;
3347 cmd
->sta
.txq
= qnum
;
3350 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3359 struct mwl8k_cmd_set_wmm_mode
{
3360 struct mwl8k_cmd_pkt header
;
3364 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw
*hw
, bool enable
)
3366 struct mwl8k_priv
*priv
= hw
->priv
;
3367 struct mwl8k_cmd_set_wmm_mode
*cmd
;
3370 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3374 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_WMM_MODE
);
3375 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3376 cmd
->action
= cpu_to_le16(!!enable
);
3378 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3382 priv
->wmm_enabled
= enable
;
3390 struct mwl8k_cmd_mimo_config
{
3391 struct mwl8k_cmd_pkt header
;
3393 __u8 rx_antenna_map
;
3394 __u8 tx_antenna_map
;
3397 static int mwl8k_cmd_mimo_config(struct ieee80211_hw
*hw
, __u8 rx
, __u8 tx
)
3399 struct mwl8k_cmd_mimo_config
*cmd
;
3402 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3406 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MIMO_CONFIG
);
3407 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3408 cmd
->action
= cpu_to_le32((u32
)MWL8K_CMD_SET
);
3409 cmd
->rx_antenna_map
= rx
;
3410 cmd
->tx_antenna_map
= tx
;
3412 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3419 * CMD_USE_FIXED_RATE (STA version).
3421 struct mwl8k_cmd_use_fixed_rate_sta
{
3422 struct mwl8k_cmd_pkt header
;
3424 __le32 allow_rate_drop
;
3428 __le32 enable_retry
;
3437 #define MWL8K_USE_AUTO_RATE 0x0002
3438 #define MWL8K_UCAST_RATE 0
3440 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw
*hw
)
3442 struct mwl8k_cmd_use_fixed_rate_sta
*cmd
;
3445 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3449 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3450 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3451 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3452 cmd
->rate_type
= cpu_to_le32(MWL8K_UCAST_RATE
);
3454 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3461 * CMD_USE_FIXED_RATE (AP version).
3463 struct mwl8k_cmd_use_fixed_rate_ap
{
3464 struct mwl8k_cmd_pkt header
;
3466 __le32 allow_rate_drop
;
3468 struct mwl8k_rate_entry_ap
{
3470 __le32 enable_retry
;
3475 u8 multicast_rate_type
;
3480 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw
*hw
, int mcast
, int mgmt
)
3482 struct mwl8k_cmd_use_fixed_rate_ap
*cmd
;
3485 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3489 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3490 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3491 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3492 cmd
->multicast_rate
= mcast
;
3493 cmd
->management_rate
= mgmt
;
3495 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3502 * CMD_ENABLE_SNIFFER.
3504 struct mwl8k_cmd_enable_sniffer
{
3505 struct mwl8k_cmd_pkt header
;
3509 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw
*hw
, bool enable
)
3511 struct mwl8k_cmd_enable_sniffer
*cmd
;
3514 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3518 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER
);
3519 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3520 cmd
->action
= cpu_to_le32(!!enable
);
3522 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3528 struct mwl8k_cmd_update_mac_addr
{
3529 struct mwl8k_cmd_pkt header
;
3533 __u8 mac_addr
[ETH_ALEN
];
3535 __u8 mac_addr
[ETH_ALEN
];
3539 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3540 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3541 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3542 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3544 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw
*hw
,
3545 struct ieee80211_vif
*vif
, u8
*mac
, bool set
)
3547 struct mwl8k_priv
*priv
= hw
->priv
;
3548 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3549 struct mwl8k_cmd_update_mac_addr
*cmd
;
3553 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3554 if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3555 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->sta_macids_supported
))
3557 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3559 mac_type
= MWL8K_MAC_TYPE_PRIMARY_CLIENT
;
3561 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3562 } else if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_AP
) {
3563 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->ap_macids_supported
))
3564 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3566 mac_type
= MWL8K_MAC_TYPE_SECONDARY_AP
;
3569 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3574 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR
);
3576 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR
);
3578 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3580 cmd
->mbss
.mac_type
= cpu_to_le16(mac_type
);
3581 memcpy(cmd
->mbss
.mac_addr
, mac
, ETH_ALEN
);
3583 memcpy(cmd
->mac_addr
, mac
, ETH_ALEN
);
3586 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3593 * MWL8K_CMD_SET_MAC_ADDR.
3595 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw
*hw
,
3596 struct ieee80211_vif
*vif
, u8
*mac
)
3598 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, true);
3602 * MWL8K_CMD_DEL_MAC_ADDR.
3604 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw
*hw
,
3605 struct ieee80211_vif
*vif
, u8
*mac
)
3607 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, false);
3611 * CMD_SET_RATEADAPT_MODE.
3613 struct mwl8k_cmd_set_rate_adapt_mode
{
3614 struct mwl8k_cmd_pkt header
;
3619 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw
*hw
, __u16 mode
)
3621 struct mwl8k_cmd_set_rate_adapt_mode
*cmd
;
3624 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3628 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE
);
3629 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3630 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3631 cmd
->mode
= cpu_to_le16(mode
);
3633 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3640 * CMD_GET_WATCHDOG_BITMAP.
3642 struct mwl8k_cmd_get_watchdog_bitmap
{
3643 struct mwl8k_cmd_pkt header
;
3647 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw
*hw
, u8
*bitmap
)
3649 struct mwl8k_cmd_get_watchdog_bitmap
*cmd
;
3652 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3656 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP
);
3657 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3659 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3661 *bitmap
= cmd
->bitmap
;
3668 #define MWL8K_WMM_QUEUE_NUMBER 3
3670 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
3673 static void mwl8k_watchdog_ba_events(struct work_struct
*work
)
3676 u8 bitmap
= 0, stream_index
;
3677 struct mwl8k_ampdu_stream
*streams
;
3678 struct mwl8k_priv
*priv
=
3679 container_of(work
, struct mwl8k_priv
, watchdog_ba_handle
);
3680 struct ieee80211_hw
*hw
= priv
->hw
;
3686 rc
= mwl8k_cmd_get_watchdog_bitmap(priv
->hw
, &bitmap
);
3690 spin_lock(&priv
->stream_lock
);
3692 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3693 for (i
= 0; i
< TOTAL_HW_TX_QUEUES
; i
++) {
3694 if (bitmap
& (1 << i
)) {
3695 stream_index
= (i
+ MWL8K_WMM_QUEUE_NUMBER
) %
3697 streams
= &priv
->ampdu
[stream_index
];
3698 if (streams
->state
== AMPDU_STREAM_ACTIVE
) {
3699 ieee80211_stop_tx_ba_session(streams
->sta
,
3701 spin_unlock(&priv
->stream_lock
);
3702 mwl8k_destroy_ba(hw
, stream_index
);
3703 spin_lock(&priv
->stream_lock
);
3708 spin_unlock(&priv
->stream_lock
);
3710 atomic_dec(&priv
->watchdog_event_pending
);
3711 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
3712 iowrite32((status
| MWL8K_A2H_INT_BA_WATCHDOG
),
3713 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
3714 mwl8k_fw_unlock(hw
);
3722 struct mwl8k_cmd_bss_start
{
3723 struct mwl8k_cmd_pkt header
;
3727 static int mwl8k_cmd_bss_start(struct ieee80211_hw
*hw
,
3728 struct ieee80211_vif
*vif
, int enable
)
3730 struct mwl8k_cmd_bss_start
*cmd
;
3731 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3732 struct mwl8k_priv
*priv
= hw
->priv
;
3735 if (enable
&& (priv
->running_bsses
& (1 << mwl8k_vif
->macid
)))
3738 if (!enable
&& !(priv
->running_bsses
& (1 << mwl8k_vif
->macid
)))
3741 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3745 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BSS_START
);
3746 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3747 cmd
->enable
= cpu_to_le32(enable
);
3749 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3754 priv
->running_bsses
|= (1 << mwl8k_vif
->macid
);
3756 priv
->running_bsses
&= ~(1 << mwl8k_vif
->macid
);
3761 static void mwl8k_enable_bsses(struct ieee80211_hw
*hw
, bool enable
, u32 bitmap
)
3763 struct mwl8k_priv
*priv
= hw
->priv
;
3764 struct mwl8k_vif
*mwl8k_vif
, *tmp_vif
;
3765 struct ieee80211_vif
*vif
;
3767 list_for_each_entry_safe(mwl8k_vif
, tmp_vif
, &priv
->vif_list
, list
) {
3768 vif
= mwl8k_vif
->vif
;
3770 if (!(bitmap
& (1 << mwl8k_vif
->macid
)))
3773 if (vif
->type
== NL80211_IFTYPE_AP
)
3774 mwl8k_cmd_bss_start(hw
, vif
, enable
);
3782 * UPSTREAM is tx direction
3784 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3785 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3787 enum ba_stream_action_type
{
3796 struct mwl8k_create_ba_stream
{
3801 u8 peer_mac_addr
[6];
3807 u8 reset_seq_no_flag
;
3809 u8 sta_src_mac_addr
[6];
3812 struct mwl8k_destroy_ba_stream
{
3817 struct mwl8k_cmd_bastream
{
3818 struct mwl8k_cmd_pkt header
;
3821 struct mwl8k_create_ba_stream create_params
;
3822 struct mwl8k_destroy_ba_stream destroy_params
;
3827 mwl8k_check_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3828 struct ieee80211_vif
*vif
)
3830 struct mwl8k_cmd_bastream
*cmd
;
3833 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3837 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3838 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3840 cmd
->action
= cpu_to_le32(MWL8K_BA_CHECK
);
3842 cmd
->create_params
.queue_id
= stream
->idx
;
3843 memcpy(&cmd
->create_params
.peer_mac_addr
[0], stream
->sta
->addr
,
3845 cmd
->create_params
.tid
= stream
->tid
;
3847 cmd
->create_params
.flags
=
3848 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
) |
3849 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3851 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3859 mwl8k_create_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3860 u8 buf_size
, struct ieee80211_vif
*vif
)
3862 struct mwl8k_cmd_bastream
*cmd
;
3865 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3870 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3871 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3873 cmd
->action
= cpu_to_le32(MWL8K_BA_CREATE
);
3875 cmd
->create_params
.bar_thrs
= cpu_to_le32((u32
)buf_size
);
3876 cmd
->create_params
.window_size
= cpu_to_le32((u32
)buf_size
);
3877 cmd
->create_params
.queue_id
= stream
->idx
;
3879 memcpy(cmd
->create_params
.peer_mac_addr
, stream
->sta
->addr
, ETH_ALEN
);
3880 cmd
->create_params
.tid
= stream
->tid
;
3881 cmd
->create_params
.curr_seq_no
= cpu_to_le16(0);
3882 cmd
->create_params
.reset_seq_no_flag
= 1;
3884 cmd
->create_params
.param_info
=
3885 (stream
->sta
->ht_cap
.ampdu_factor
&
3886 IEEE80211_HT_AMPDU_PARM_FACTOR
) |
3887 ((stream
->sta
->ht_cap
.ampdu_density
<< 2) &
3888 IEEE80211_HT_AMPDU_PARM_DENSITY
);
3890 cmd
->create_params
.flags
=
3891 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
|
3892 BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3894 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3896 wiphy_debug(hw
->wiphy
, "Created a BA stream for %pM : tid %d\n",
3897 stream
->sta
->addr
, stream
->tid
);
3903 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
3906 struct mwl8k_cmd_bastream
*cmd
;
3908 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3912 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3913 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3914 cmd
->action
= cpu_to_le32(MWL8K_BA_DESTROY
);
3916 cmd
->destroy_params
.ba_context
= cpu_to_le32(idx
);
3917 mwl8k_post_cmd(hw
, &cmd
->header
);
3919 wiphy_debug(hw
->wiphy
, "Deleted BA stream index %d\n", idx
);
3927 struct mwl8k_cmd_set_new_stn
{
3928 struct mwl8k_cmd_pkt header
;
3934 __le32 legacy_rates
;
3937 __le16 ht_capabilities_info
;
3938 __u8 mac_ht_param_info
;
3940 __u8 control_channel
;
3949 #define MWL8K_STA_ACTION_ADD 0
3950 #define MWL8K_STA_ACTION_REMOVE 2
3952 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw
*hw
,
3953 struct ieee80211_vif
*vif
,
3954 struct ieee80211_sta
*sta
)
3956 struct mwl8k_cmd_set_new_stn
*cmd
;
3960 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3964 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
3965 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3966 cmd
->aid
= cpu_to_le16(sta
->aid
);
3967 memcpy(cmd
->mac_addr
, sta
->addr
, ETH_ALEN
);
3968 cmd
->stn_id
= cpu_to_le16(sta
->aid
);
3969 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_ADD
);
3970 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
3971 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
3973 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
3974 cmd
->legacy_rates
= cpu_to_le32(rates
);
3975 if (sta
->ht_cap
.ht_supported
) {
3976 cmd
->ht_rates
[0] = sta
->ht_cap
.mcs
.rx_mask
[0];
3977 cmd
->ht_rates
[1] = sta
->ht_cap
.mcs
.rx_mask
[1];
3978 cmd
->ht_rates
[2] = sta
->ht_cap
.mcs
.rx_mask
[2];
3979 cmd
->ht_rates
[3] = sta
->ht_cap
.mcs
.rx_mask
[3];
3980 cmd
->ht_capabilities_info
= cpu_to_le16(sta
->ht_cap
.cap
);
3981 cmd
->mac_ht_param_info
= (sta
->ht_cap
.ampdu_factor
& 3) |
3982 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
3983 cmd
->is_qos_sta
= 1;
3986 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3992 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw
*hw
,
3993 struct ieee80211_vif
*vif
)
3995 struct mwl8k_cmd_set_new_stn
*cmd
;
3998 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4002 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
4003 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4004 memcpy(cmd
->mac_addr
, vif
->addr
, ETH_ALEN
);
4006 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4012 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw
*hw
,
4013 struct ieee80211_vif
*vif
, u8
*addr
)
4015 struct mwl8k_cmd_set_new_stn
*cmd
;
4016 struct mwl8k_priv
*priv
= hw
->priv
;
4020 spin_lock(&priv
->stream_lock
);
4021 /* Destroy any active ampdu streams for this sta */
4022 for (i
= 0; i
< MWL8K_NUM_AMPDU_STREAMS
; i
++) {
4023 struct mwl8k_ampdu_stream
*s
;
4024 s
= &priv
->ampdu
[i
];
4025 if (s
->state
!= AMPDU_NO_STREAM
) {
4026 if (memcmp(s
->sta
->addr
, addr
, ETH_ALEN
) == 0) {
4027 if (s
->state
== AMPDU_STREAM_ACTIVE
) {
4029 spin_unlock(&priv
->stream_lock
);
4030 mwl8k_destroy_ba(hw
, idx
);
4031 spin_lock(&priv
->stream_lock
);
4032 } else if (s
->state
== AMPDU_STREAM_NEW
) {
4033 mwl8k_remove_stream(hw
, s
);
4039 spin_unlock(&priv
->stream_lock
);
4041 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4045 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
4046 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4047 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
4048 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_REMOVE
);
4050 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4057 * CMD_UPDATE_ENCRYPTION.
4060 #define MAX_ENCR_KEY_LENGTH 16
4061 #define MIC_KEY_LENGTH 8
4063 struct mwl8k_cmd_update_encryption
{
4064 struct mwl8k_cmd_pkt header
;
4073 struct mwl8k_cmd_set_key
{
4074 struct mwl8k_cmd_pkt header
;
4083 __u8 key_material
[MAX_ENCR_KEY_LENGTH
];
4084 __u8 tkip_tx_mic_key
[MIC_KEY_LENGTH
];
4085 __u8 tkip_rx_mic_key
[MIC_KEY_LENGTH
];
4086 __le16 tkip_rsc_low
;
4087 __le32 tkip_rsc_high
;
4088 __le16 tkip_tsc_low
;
4089 __le32 tkip_tsc_high
;
4096 MWL8K_ENCR_REMOVE_KEY
,
4097 MWL8K_ENCR_SET_GROUP_KEY
,
4100 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4101 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4102 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4103 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4104 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4112 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4113 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4114 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4115 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4116 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4118 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw
*hw
,
4119 struct ieee80211_vif
*vif
,
4123 struct mwl8k_cmd_update_encryption
*cmd
;
4126 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4130 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
4131 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4132 cmd
->action
= cpu_to_le32(MWL8K_ENCR_ENABLE
);
4133 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
4134 cmd
->encr_type
= encr_type
;
4136 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4142 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key
*cmd
,
4144 struct ieee80211_key_conf
*key
)
4146 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
4147 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4148 cmd
->length
= cpu_to_le16(sizeof(*cmd
) -
4149 offsetof(struct mwl8k_cmd_set_key
, length
));
4150 cmd
->key_id
= cpu_to_le32(key
->keyidx
);
4151 cmd
->key_len
= cpu_to_le16(key
->keylen
);
4152 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
4154 switch (key
->cipher
) {
4155 case WLAN_CIPHER_SUITE_WEP40
:
4156 case WLAN_CIPHER_SUITE_WEP104
:
4157 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_WEP
);
4158 if (key
->keyidx
== 0)
4159 cmd
->key_info
= cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY
);
4162 case WLAN_CIPHER_SUITE_TKIP
:
4163 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_TKIP
);
4164 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4165 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4166 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4167 cmd
->key_info
|= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4168 | MWL8K_KEY_FLAG_TSC_VALID
);
4170 case WLAN_CIPHER_SUITE_CCMP
:
4171 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_CCMP
);
4172 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4173 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4174 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4183 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw
*hw
,
4184 struct ieee80211_vif
*vif
,
4186 struct ieee80211_key_conf
*key
)
4188 struct mwl8k_cmd_set_key
*cmd
;
4193 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4195 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4199 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4205 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4206 action
= MWL8K_ENCR_SET_KEY
;
4208 action
= MWL8K_ENCR_SET_GROUP_KEY
;
4210 switch (key
->cipher
) {
4211 case WLAN_CIPHER_SUITE_WEP40
:
4212 case WLAN_CIPHER_SUITE_WEP104
:
4213 if (!mwl8k_vif
->wep_key_conf
[idx
].enabled
) {
4214 memcpy(mwl8k_vif
->wep_key_conf
[idx
].key
, key
,
4215 sizeof(*key
) + key
->keylen
);
4216 mwl8k_vif
->wep_key_conf
[idx
].enabled
= 1;
4219 keymlen
= key
->keylen
;
4220 action
= MWL8K_ENCR_SET_KEY
;
4222 case WLAN_CIPHER_SUITE_TKIP
:
4223 keymlen
= MAX_ENCR_KEY_LENGTH
+ 2 * MIC_KEY_LENGTH
;
4225 case WLAN_CIPHER_SUITE_CCMP
:
4226 keymlen
= key
->keylen
;
4233 memcpy(cmd
->key_material
, key
->key
, keymlen
);
4234 cmd
->action
= cpu_to_le32(action
);
4236 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4243 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw
*hw
,
4244 struct ieee80211_vif
*vif
,
4246 struct ieee80211_key_conf
*key
)
4248 struct mwl8k_cmd_set_key
*cmd
;
4250 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4252 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4256 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4260 if (key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
4261 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
)
4262 mwl8k_vif
->wep_key_conf
[key
->keyidx
].enabled
= 0;
4264 cmd
->action
= cpu_to_le32(MWL8K_ENCR_REMOVE_KEY
);
4266 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4273 static int mwl8k_set_key(struct ieee80211_hw
*hw
,
4274 enum set_key_cmd cmd_param
,
4275 struct ieee80211_vif
*vif
,
4276 struct ieee80211_sta
*sta
,
4277 struct ieee80211_key_conf
*key
)
4282 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4283 struct mwl8k_priv
*priv
= hw
->priv
;
4285 if (vif
->type
== NL80211_IFTYPE_STATION
&& !priv
->ap_fw
)
4293 if (cmd_param
== SET_KEY
) {
4294 rc
= mwl8k_cmd_encryption_set_key(hw
, vif
, addr
, key
);
4298 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
)
4299 || (key
->cipher
== WLAN_CIPHER_SUITE_WEP104
))
4300 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_WEP
;
4302 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED
;
4304 rc
= mwl8k_cmd_update_encryption_enable(hw
, vif
, addr
,
4309 mwl8k_vif
->is_hw_crypto_enabled
= true;
4312 rc
= mwl8k_cmd_encryption_remove_key(hw
, vif
, addr
, key
);
4324 struct ewc_ht_info
{
4330 struct peer_capability_info
{
4331 /* Peer type - AP vs. STA. */
4334 /* Basic 802.11 capabilities from assoc resp. */
4337 /* Set if peer supports 802.11n high throughput (HT). */
4340 /* Valid if HT is supported. */
4342 __u8 extended_ht_caps
;
4343 struct ewc_ht_info ewc_info
;
4345 /* Legacy rate table. Intersection of our rates and peer rates. */
4346 __u8 legacy_rates
[12];
4348 /* HT rate table. Intersection of our rates and peer rates. */
4352 /* If set, interoperability mode, no proprietary extensions. */
4356 __le16 amsdu_enabled
;
4359 struct mwl8k_cmd_update_stadb
{
4360 struct mwl8k_cmd_pkt header
;
4362 /* See STADB_ACTION_TYPE */
4365 /* Peer MAC address */
4366 __u8 peer_addr
[ETH_ALEN
];
4370 /* Peer info - valid during add/update. */
4371 struct peer_capability_info peer_info
;
4374 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4375 #define MWL8K_STA_DB_DEL_ENTRY 2
4377 /* Peer Entry flags - used to define the type of the peer node */
4378 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4380 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw
*hw
,
4381 struct ieee80211_vif
*vif
,
4382 struct ieee80211_sta
*sta
)
4384 struct mwl8k_cmd_update_stadb
*cmd
;
4385 struct peer_capability_info
*p
;
4389 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4393 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4394 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4395 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY
);
4396 memcpy(cmd
->peer_addr
, sta
->addr
, ETH_ALEN
);
4398 p
= &cmd
->peer_info
;
4399 p
->peer_type
= MWL8K_PEER_TYPE_ACCESSPOINT
;
4400 p
->basic_caps
= cpu_to_le16(vif
->bss_conf
.assoc_capability
);
4401 p
->ht_support
= sta
->ht_cap
.ht_supported
;
4402 p
->ht_caps
= cpu_to_le16(sta
->ht_cap
.cap
);
4403 p
->extended_ht_caps
= (sta
->ht_cap
.ampdu_factor
& 3) |
4404 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
4405 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
4406 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
4408 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4409 legacy_rate_mask_to_array(p
->legacy_rates
, rates
);
4410 memcpy(p
->ht_rates
, sta
->ht_cap
.mcs
.rx_mask
, 16);
4412 p
->amsdu_enabled
= 0;
4414 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4422 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw
*hw
,
4423 struct ieee80211_vif
*vif
, u8
*addr
)
4425 struct mwl8k_cmd_update_stadb
*cmd
;
4428 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4432 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4433 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4434 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY
);
4435 memcpy(cmd
->peer_addr
, addr
, ETH_ALEN
);
4437 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4445 * Interrupt handling.
4447 static irqreturn_t
mwl8k_interrupt(int irq
, void *dev_id
)
4449 struct ieee80211_hw
*hw
= dev_id
;
4450 struct mwl8k_priv
*priv
= hw
->priv
;
4453 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4457 if (status
& MWL8K_A2H_INT_TX_DONE
) {
4458 status
&= ~MWL8K_A2H_INT_TX_DONE
;
4459 tasklet_schedule(&priv
->poll_tx_task
);
4462 if (status
& MWL8K_A2H_INT_RX_READY
) {
4463 status
&= ~MWL8K_A2H_INT_RX_READY
;
4464 tasklet_schedule(&priv
->poll_rx_task
);
4467 if (status
& MWL8K_A2H_INT_BA_WATCHDOG
) {
4468 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG
,
4469 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4471 atomic_inc(&priv
->watchdog_event_pending
);
4472 status
&= ~MWL8K_A2H_INT_BA_WATCHDOG
;
4473 ieee80211_queue_work(hw
, &priv
->watchdog_ba_handle
);
4477 iowrite32(~status
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4479 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
4480 if (priv
->hostcmd_wait
!= NULL
)
4481 complete(priv
->hostcmd_wait
);
4484 if (status
& MWL8K_A2H_INT_QUEUE_EMPTY
) {
4485 if (!mutex_is_locked(&priv
->fw_mutex
) &&
4486 priv
->radio_on
&& priv
->pending_tx_pkts
)
4487 mwl8k_tx_start(priv
);
4493 static void mwl8k_tx_poll(unsigned long data
)
4495 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4496 struct mwl8k_priv
*priv
= hw
->priv
;
4502 spin_lock_bh(&priv
->tx_lock
);
4504 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4505 limit
-= mwl8k_txq_reclaim(hw
, i
, limit
, 0);
4507 if (!priv
->pending_tx_pkts
&& priv
->tx_wait
!= NULL
) {
4508 complete(priv
->tx_wait
);
4509 priv
->tx_wait
= NULL
;
4512 spin_unlock_bh(&priv
->tx_lock
);
4515 writel(~MWL8K_A2H_INT_TX_DONE
,
4516 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4518 tasklet_schedule(&priv
->poll_tx_task
);
4522 static void mwl8k_rx_poll(unsigned long data
)
4524 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4525 struct mwl8k_priv
*priv
= hw
->priv
;
4529 limit
-= rxq_process(hw
, 0, limit
);
4530 limit
-= rxq_refill(hw
, 0, limit
);
4533 writel(~MWL8K_A2H_INT_RX_READY
,
4534 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4536 tasklet_schedule(&priv
->poll_rx_task
);
4542 * Core driver operations.
4544 static void mwl8k_tx(struct ieee80211_hw
*hw
,
4545 struct ieee80211_tx_control
*control
,
4546 struct sk_buff
*skb
)
4548 struct mwl8k_priv
*priv
= hw
->priv
;
4549 int index
= skb_get_queue_mapping(skb
);
4551 if (!priv
->radio_on
) {
4552 wiphy_debug(hw
->wiphy
,
4553 "dropped TX frame since radio disabled\n");
4558 mwl8k_txq_xmit(hw
, index
, control
->sta
, skb
);
4561 static int mwl8k_start(struct ieee80211_hw
*hw
)
4563 struct mwl8k_priv
*priv
= hw
->priv
;
4566 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
4567 IRQF_SHARED
, MWL8K_NAME
, hw
);
4570 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
4573 priv
->irq
= priv
->pdev
->irq
;
4575 /* Enable TX reclaim and RX tasklets. */
4576 tasklet_enable(&priv
->poll_tx_task
);
4577 tasklet_enable(&priv
->poll_rx_task
);
4579 /* Enable interrupts */
4580 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4581 iowrite32(MWL8K_A2H_EVENTS
,
4582 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4584 rc
= mwl8k_fw_lock(hw
);
4586 rc
= mwl8k_cmd_radio_enable(hw
);
4590 rc
= mwl8k_cmd_enable_sniffer(hw
, 0);
4593 rc
= mwl8k_cmd_set_pre_scan(hw
);
4596 rc
= mwl8k_cmd_set_post_scan(hw
,
4597 "\x00\x00\x00\x00\x00\x00");
4601 rc
= mwl8k_cmd_set_rateadapt_mode(hw
, 0);
4604 rc
= mwl8k_cmd_set_wmm_mode(hw
, 0);
4606 mwl8k_fw_unlock(hw
);
4610 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4611 free_irq(priv
->pdev
->irq
, hw
);
4613 tasklet_disable(&priv
->poll_tx_task
);
4614 tasklet_disable(&priv
->poll_rx_task
);
4616 ieee80211_wake_queues(hw
);
4622 static void mwl8k_stop(struct ieee80211_hw
*hw
)
4624 struct mwl8k_priv
*priv
= hw
->priv
;
4627 if (!priv
->hw_restart_in_progress
)
4628 mwl8k_cmd_radio_disable(hw
);
4630 ieee80211_stop_queues(hw
);
4632 /* Disable interrupts */
4633 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4634 if (priv
->irq
!= -1) {
4635 free_irq(priv
->pdev
->irq
, hw
);
4639 /* Stop finalize join worker */
4640 cancel_work_sync(&priv
->finalize_join_worker
);
4641 cancel_work_sync(&priv
->watchdog_ba_handle
);
4642 if (priv
->beacon_skb
!= NULL
)
4643 dev_kfree_skb(priv
->beacon_skb
);
4645 /* Stop TX reclaim and RX tasklets. */
4646 tasklet_disable(&priv
->poll_tx_task
);
4647 tasklet_disable(&priv
->poll_rx_task
);
4649 /* Return all skbs to mac80211 */
4650 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4651 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
4654 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
);
4656 static int mwl8k_add_interface(struct ieee80211_hw
*hw
,
4657 struct ieee80211_vif
*vif
)
4659 struct mwl8k_priv
*priv
= hw
->priv
;
4660 struct mwl8k_vif
*mwl8k_vif
;
4661 u32 macids_supported
;
4663 struct mwl8k_device_info
*di
;
4666 * Reject interface creation if sniffer mode is active, as
4667 * STA operation is mutually exclusive with hardware sniffer
4668 * mode. (Sniffer mode is only used on STA firmware.)
4670 if (priv
->sniffer_enabled
) {
4671 wiphy_info(hw
->wiphy
,
4672 "unable to create STA interface because sniffer mode is enabled\n");
4676 di
= priv
->device_info
;
4677 switch (vif
->type
) {
4678 case NL80211_IFTYPE_AP
:
4679 if (!priv
->ap_fw
&& di
->fw_image_ap
) {
4680 /* we must load the ap fw to meet this request */
4681 if (!list_empty(&priv
->vif_list
))
4683 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4687 macids_supported
= priv
->ap_macids_supported
;
4689 case NL80211_IFTYPE_STATION
:
4690 if (priv
->ap_fw
&& di
->fw_image_sta
) {
4691 if (!list_empty(&priv
->vif_list
)) {
4692 wiphy_warn(hw
->wiphy
, "AP interface is running.\n"
4693 "Adding STA interface for WDS");
4695 /* we must load the sta fw to
4696 * meet this request.
4698 rc
= mwl8k_reload_firmware(hw
,
4704 macids_supported
= priv
->sta_macids_supported
;
4710 macid
= ffs(macids_supported
& ~priv
->macids_used
);
4714 /* Setup driver private area. */
4715 mwl8k_vif
= MWL8K_VIF(vif
);
4716 memset(mwl8k_vif
, 0, sizeof(*mwl8k_vif
));
4717 mwl8k_vif
->vif
= vif
;
4718 mwl8k_vif
->macid
= macid
;
4719 mwl8k_vif
->seqno
= 0;
4720 memcpy(mwl8k_vif
->bssid
, vif
->addr
, ETH_ALEN
);
4721 mwl8k_vif
->is_hw_crypto_enabled
= false;
4723 /* Set the mac address. */
4724 mwl8k_cmd_set_mac_addr(hw
, vif
, vif
->addr
);
4726 if (vif
->type
== NL80211_IFTYPE_AP
)
4727 mwl8k_cmd_set_new_stn_add_self(hw
, vif
);
4729 priv
->macids_used
|= 1 << mwl8k_vif
->macid
;
4730 list_add_tail(&mwl8k_vif
->list
, &priv
->vif_list
);
4735 static void mwl8k_remove_vif(struct mwl8k_priv
*priv
, struct mwl8k_vif
*vif
)
4737 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4738 if (!priv
->macids_used
)
4741 priv
->macids_used
&= ~(1 << vif
->macid
);
4742 list_del(&vif
->list
);
4745 static void mwl8k_remove_interface(struct ieee80211_hw
*hw
,
4746 struct ieee80211_vif
*vif
)
4748 struct mwl8k_priv
*priv
= hw
->priv
;
4749 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4751 if (vif
->type
== NL80211_IFTYPE_AP
)
4752 mwl8k_cmd_set_new_stn_del(hw
, vif
, vif
->addr
);
4754 mwl8k_cmd_del_mac_addr(hw
, vif
, vif
->addr
);
4756 mwl8k_remove_vif(priv
, mwl8k_vif
);
4759 static void mwl8k_hw_restart_work(struct work_struct
*work
)
4761 struct mwl8k_priv
*priv
=
4762 container_of(work
, struct mwl8k_priv
, fw_reload
);
4763 struct ieee80211_hw
*hw
= priv
->hw
;
4764 struct mwl8k_device_info
*di
;
4767 /* If some command is waiting for a response, clear it */
4768 if (priv
->hostcmd_wait
!= NULL
) {
4769 complete(priv
->hostcmd_wait
);
4770 priv
->hostcmd_wait
= NULL
;
4773 priv
->hw_restart_owner
= current
;
4774 di
= priv
->device_info
;
4778 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4780 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4785 priv
->hw_restart_owner
= NULL
;
4786 priv
->hw_restart_in_progress
= false;
4789 * This unlock will wake up the queues and
4790 * also opens the command path for other
4793 mwl8k_fw_unlock(hw
);
4795 ieee80211_restart_hw(hw
);
4797 wiphy_err(hw
->wiphy
, "Firmware restarted successfully\n");
4801 mwl8k_fw_unlock(hw
);
4803 wiphy_err(hw
->wiphy
, "Firmware restart failed\n");
4806 static int mwl8k_config(struct ieee80211_hw
*hw
, u32 changed
)
4808 struct ieee80211_conf
*conf
= &hw
->conf
;
4809 struct mwl8k_priv
*priv
= hw
->priv
;
4812 rc
= mwl8k_fw_lock(hw
);
4816 if (conf
->flags
& IEEE80211_CONF_IDLE
)
4817 rc
= mwl8k_cmd_radio_disable(hw
);
4819 rc
= mwl8k_cmd_radio_enable(hw
);
4823 if (changed
& IEEE80211_CONF_CHANGE_CHANNEL
) {
4824 rc
= mwl8k_cmd_set_rf_channel(hw
, conf
);
4829 if (conf
->power_level
> 18)
4830 conf
->power_level
= 18;
4834 if (conf
->flags
& IEEE80211_CONF_CHANGE_POWER
) {
4835 rc
= mwl8k_cmd_tx_power(hw
, conf
, conf
->power_level
);
4842 rc
= mwl8k_cmd_rf_tx_power(hw
, conf
->power_level
);
4845 rc
= mwl8k_cmd_mimo_config(hw
, 0x7, 0x7);
4849 mwl8k_fw_unlock(hw
);
4855 mwl8k_bss_info_changed_sta(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4856 struct ieee80211_bss_conf
*info
, u32 changed
)
4858 struct mwl8k_priv
*priv
= hw
->priv
;
4859 u32 ap_legacy_rates
= 0;
4860 u8 ap_mcs_rates
[16];
4863 if (mwl8k_fw_lock(hw
))
4867 * No need to capture a beacon if we're no longer associated.
4869 if ((changed
& BSS_CHANGED_ASSOC
) && !vif
->bss_conf
.assoc
)
4870 priv
->capture_beacon
= false;
4873 * Get the AP's legacy and MCS rates.
4875 if (vif
->bss_conf
.assoc
) {
4876 struct ieee80211_sta
*ap
;
4880 ap
= ieee80211_find_sta(vif
, vif
->bss_conf
.bssid
);
4886 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
) {
4887 ap_legacy_rates
= ap
->supp_rates
[IEEE80211_BAND_2GHZ
];
4890 ap
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4892 memcpy(ap_mcs_rates
, ap
->ht_cap
.mcs
.rx_mask
, 16);
4897 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
&&
4899 rc
= mwl8k_cmd_set_rate(hw
, vif
, ap_legacy_rates
, ap_mcs_rates
);
4903 rc
= mwl8k_cmd_use_fixed_rate_sta(hw
);
4907 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
&&
4912 /* Use AP firmware specific rate command.
4914 idx
= ffs(vif
->bss_conf
.basic_rates
);
4918 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
4919 rate
= mwl8k_rates_24
[idx
].hw_value
;
4921 rate
= mwl8k_rates_50
[idx
].hw_value
;
4923 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
4927 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4928 rc
= mwl8k_set_radio_preamble(hw
,
4929 vif
->bss_conf
.use_short_preamble
);
4934 if ((changed
& BSS_CHANGED_ERP_SLOT
) && !priv
->ap_fw
) {
4935 rc
= mwl8k_cmd_set_slot(hw
, vif
->bss_conf
.use_short_slot
);
4940 if (vif
->bss_conf
.assoc
&& !priv
->ap_fw
&&
4941 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_ERP_CTS_PROT
|
4943 rc
= mwl8k_cmd_set_aid(hw
, vif
, ap_legacy_rates
);
4948 if (vif
->bss_conf
.assoc
&&
4949 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_BEACON_INT
))) {
4951 * Finalize the join. Tell rx handler to process
4952 * next beacon from our BSSID.
4954 memcpy(priv
->capture_bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
4955 priv
->capture_beacon
= true;
4959 mwl8k_fw_unlock(hw
);
4963 mwl8k_bss_info_changed_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4964 struct ieee80211_bss_conf
*info
, u32 changed
)
4968 if (mwl8k_fw_lock(hw
))
4971 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
4972 rc
= mwl8k_set_radio_preamble(hw
,
4973 vif
->bss_conf
.use_short_preamble
);
4978 if (changed
& BSS_CHANGED_BASIC_RATES
) {
4983 * Use lowest supported basic rate for multicasts
4984 * and management frames (such as probe responses --
4985 * beacons will always go out at 1 Mb/s).
4987 idx
= ffs(vif
->bss_conf
.basic_rates
);
4991 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
4992 rate
= mwl8k_rates_24
[idx
].hw_value
;
4994 rate
= mwl8k_rates_50
[idx
].hw_value
;
4996 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
4999 if (changed
& (BSS_CHANGED_BEACON_INT
| BSS_CHANGED_BEACON
)) {
5000 struct sk_buff
*skb
;
5002 skb
= ieee80211_beacon_get(hw
, vif
);
5004 mwl8k_cmd_set_beacon(hw
, vif
, skb
->data
, skb
->len
);
5009 if (changed
& BSS_CHANGED_BEACON_ENABLED
)
5010 mwl8k_cmd_bss_start(hw
, vif
, info
->enable_beacon
);
5013 mwl8k_fw_unlock(hw
);
5017 mwl8k_bss_info_changed(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5018 struct ieee80211_bss_conf
*info
, u32 changed
)
5020 if (vif
->type
== NL80211_IFTYPE_STATION
)
5021 mwl8k_bss_info_changed_sta(hw
, vif
, info
, changed
);
5022 if (vif
->type
== NL80211_IFTYPE_AP
)
5023 mwl8k_bss_info_changed_ap(hw
, vif
, info
, changed
);
5026 static u64
mwl8k_prepare_multicast(struct ieee80211_hw
*hw
,
5027 struct netdev_hw_addr_list
*mc_list
)
5029 struct mwl8k_cmd_pkt
*cmd
;
5032 * Synthesize and return a command packet that programs the
5033 * hardware multicast address filter. At this point we don't
5034 * know whether FIF_ALLMULTI is being requested, but if it is,
5035 * we'll end up throwing this packet away and creating a new
5036 * one in mwl8k_configure_filter().
5038 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 0, mc_list
);
5040 return (unsigned long)cmd
;
5044 mwl8k_configure_filter_sniffer(struct ieee80211_hw
*hw
,
5045 unsigned int changed_flags
,
5046 unsigned int *total_flags
)
5048 struct mwl8k_priv
*priv
= hw
->priv
;
5051 * Hardware sniffer mode is mutually exclusive with STA
5052 * operation, so refuse to enable sniffer mode if a STA
5053 * interface is active.
5055 if (!list_empty(&priv
->vif_list
)) {
5056 if (net_ratelimit())
5057 wiphy_info(hw
->wiphy
,
5058 "not enabling sniffer mode because STA interface is active\n");
5062 if (!priv
->sniffer_enabled
) {
5063 if (mwl8k_cmd_enable_sniffer(hw
, 1))
5065 priv
->sniffer_enabled
= true;
5068 *total_flags
&= FIF_PROMISC_IN_BSS
| FIF_ALLMULTI
|
5069 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
|
5075 static struct mwl8k_vif
*mwl8k_first_vif(struct mwl8k_priv
*priv
)
5077 if (!list_empty(&priv
->vif_list
))
5078 return list_entry(priv
->vif_list
.next
, struct mwl8k_vif
, list
);
5083 static void mwl8k_configure_filter(struct ieee80211_hw
*hw
,
5084 unsigned int changed_flags
,
5085 unsigned int *total_flags
,
5088 struct mwl8k_priv
*priv
= hw
->priv
;
5089 struct mwl8k_cmd_pkt
*cmd
= (void *)(unsigned long)multicast
;
5092 * AP firmware doesn't allow fine-grained control over
5093 * the receive filter.
5096 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
5102 * Enable hardware sniffer mode if FIF_CONTROL or
5103 * FIF_OTHER_BSS is requested.
5105 if (*total_flags
& (FIF_CONTROL
| FIF_OTHER_BSS
) &&
5106 mwl8k_configure_filter_sniffer(hw
, changed_flags
, total_flags
)) {
5111 /* Clear unsupported feature flags */
5112 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
5114 if (mwl8k_fw_lock(hw
)) {
5119 if (priv
->sniffer_enabled
) {
5120 mwl8k_cmd_enable_sniffer(hw
, 0);
5121 priv
->sniffer_enabled
= false;
5124 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
5125 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
) {
5127 * Disable the BSS filter.
5129 mwl8k_cmd_set_pre_scan(hw
);
5131 struct mwl8k_vif
*mwl8k_vif
;
5135 * Enable the BSS filter.
5137 * If there is an active STA interface, use that
5138 * interface's BSSID, otherwise use a dummy one
5139 * (where the OUI part needs to be nonzero for
5140 * the BSSID to be accepted by POST_SCAN).
5142 mwl8k_vif
= mwl8k_first_vif(priv
);
5143 if (mwl8k_vif
!= NULL
)
5144 bssid
= mwl8k_vif
->vif
->bss_conf
.bssid
;
5146 bssid
= "\x01\x00\x00\x00\x00\x00";
5148 mwl8k_cmd_set_post_scan(hw
, bssid
);
5153 * If FIF_ALLMULTI is being requested, throw away the command
5154 * packet that ->prepare_multicast() built and replace it with
5155 * a command packet that enables reception of all multicast
5158 if (*total_flags
& FIF_ALLMULTI
) {
5160 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 1, NULL
);
5164 mwl8k_post_cmd(hw
, cmd
);
5168 mwl8k_fw_unlock(hw
);
5171 static int mwl8k_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
5173 return mwl8k_cmd_set_rts_threshold(hw
, value
);
5176 static int mwl8k_sta_remove(struct ieee80211_hw
*hw
,
5177 struct ieee80211_vif
*vif
,
5178 struct ieee80211_sta
*sta
)
5180 struct mwl8k_priv
*priv
= hw
->priv
;
5183 return mwl8k_cmd_set_new_stn_del(hw
, vif
, sta
->addr
);
5185 return mwl8k_cmd_update_stadb_del(hw
, vif
, sta
->addr
);
5188 static int mwl8k_sta_add(struct ieee80211_hw
*hw
,
5189 struct ieee80211_vif
*vif
,
5190 struct ieee80211_sta
*sta
)
5192 struct mwl8k_priv
*priv
= hw
->priv
;
5195 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
5196 struct ieee80211_key_conf
*key
;
5199 ret
= mwl8k_cmd_update_stadb_add(hw
, vif
, sta
);
5201 MWL8K_STA(sta
)->peer_id
= ret
;
5202 if (sta
->ht_cap
.ht_supported
)
5203 MWL8K_STA(sta
)->is_ampdu_allowed
= true;
5208 ret
= mwl8k_cmd_set_new_stn_add(hw
, vif
, sta
);
5211 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
5212 key
= IEEE80211_KEY_CONF(mwl8k_vif
->wep_key_conf
[i
].key
);
5213 if (mwl8k_vif
->wep_key_conf
[i
].enabled
)
5214 mwl8k_set_key(hw
, SET_KEY
, vif
, sta
, key
);
5219 static int mwl8k_conf_tx(struct ieee80211_hw
*hw
,
5220 struct ieee80211_vif
*vif
, u16 queue
,
5221 const struct ieee80211_tx_queue_params
*params
)
5223 struct mwl8k_priv
*priv
= hw
->priv
;
5226 rc
= mwl8k_fw_lock(hw
);
5228 BUG_ON(queue
> MWL8K_TX_WMM_QUEUES
- 1);
5229 memcpy(&priv
->wmm_params
[queue
], params
, sizeof(*params
));
5231 if (!priv
->wmm_enabled
)
5232 rc
= mwl8k_cmd_set_wmm_mode(hw
, 1);
5235 int q
= MWL8K_TX_WMM_QUEUES
- 1 - queue
;
5236 rc
= mwl8k_cmd_set_edca_params(hw
, q
,
5243 mwl8k_fw_unlock(hw
);
5249 static int mwl8k_get_stats(struct ieee80211_hw
*hw
,
5250 struct ieee80211_low_level_stats
*stats
)
5252 return mwl8k_cmd_get_stat(hw
, stats
);
5255 static int mwl8k_get_survey(struct ieee80211_hw
*hw
, int idx
,
5256 struct survey_info
*survey
)
5258 struct mwl8k_priv
*priv
= hw
->priv
;
5259 struct ieee80211_conf
*conf
= &hw
->conf
;
5264 survey
->channel
= conf
->chandef
.chan
;
5265 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
5266 survey
->noise
= priv
->noise
;
5271 #define MAX_AMPDU_ATTEMPTS 5
5274 mwl8k_ampdu_action(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5275 enum ieee80211_ampdu_mlme_action action
,
5276 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
5281 struct mwl8k_priv
*priv
= hw
->priv
;
5282 struct mwl8k_ampdu_stream
*stream
;
5283 u8
*addr
= sta
->addr
, idx
;
5284 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
5286 if (!(hw
->flags
& IEEE80211_HW_AMPDU_AGGREGATION
))
5289 spin_lock(&priv
->stream_lock
);
5290 stream
= mwl8k_lookup_stream(hw
, addr
, tid
);
5293 case IEEE80211_AMPDU_RX_START
:
5294 case IEEE80211_AMPDU_RX_STOP
:
5296 case IEEE80211_AMPDU_TX_START
:
5297 /* By the time we get here the hw queues may contain outgoing
5298 * packets for this RA/TID that are not part of this BA
5299 * session. The hw will assign sequence numbers to these
5300 * packets as they go out. So if we query the hw for its next
5301 * sequence number and use that for the SSN here, it may end up
5302 * being wrong, which will lead to sequence number mismatch at
5303 * the recipient. To avoid this, we reset the sequence number
5304 * to O for the first MPDU in this BA stream.
5307 if (stream
== NULL
) {
5308 /* This means that somebody outside this driver called
5309 * ieee80211_start_tx_ba_session. This is unexpected
5310 * because we do our own rate control. Just warn and
5313 wiphy_warn(hw
->wiphy
, "Unexpected call to %s. "
5314 "Proceeding anyway.\n", __func__
);
5315 stream
= mwl8k_add_stream(hw
, sta
, tid
);
5317 if (stream
== NULL
) {
5318 wiphy_debug(hw
->wiphy
, "no free AMPDU streams\n");
5322 stream
->state
= AMPDU_STREAM_IN_PROGRESS
;
5324 /* Release the lock before we do the time consuming stuff */
5325 spin_unlock(&priv
->stream_lock
);
5326 for (i
= 0; i
< MAX_AMPDU_ATTEMPTS
; i
++) {
5328 /* Check if link is still valid */
5329 if (!sta_info
->is_ampdu_allowed
) {
5330 spin_lock(&priv
->stream_lock
);
5331 mwl8k_remove_stream(hw
, stream
);
5332 spin_unlock(&priv
->stream_lock
);
5336 rc
= mwl8k_check_ba(hw
, stream
, vif
);
5338 /* If HW restart is in progress mwl8k_post_cmd will
5339 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5342 if (!rc
|| rc
== -EBUSY
)
5345 * HW queues take time to be flushed, give them
5351 spin_lock(&priv
->stream_lock
);
5353 wiphy_err(hw
->wiphy
, "Stream for tid %d busy after %d"
5354 " attempts\n", tid
, MAX_AMPDU_ATTEMPTS
);
5355 mwl8k_remove_stream(hw
, stream
);
5359 ieee80211_start_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5361 case IEEE80211_AMPDU_TX_STOP_CONT
:
5362 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
5363 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
5365 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
5367 spin_unlock(&priv
->stream_lock
);
5368 mwl8k_destroy_ba(hw
, idx
);
5369 spin_lock(&priv
->stream_lock
);
5371 mwl8k_remove_stream(hw
, stream
);
5373 ieee80211_stop_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5375 case IEEE80211_AMPDU_TX_OPERATIONAL
:
5376 BUG_ON(stream
== NULL
);
5377 BUG_ON(stream
->state
!= AMPDU_STREAM_IN_PROGRESS
);
5378 spin_unlock(&priv
->stream_lock
);
5379 rc
= mwl8k_create_ba(hw
, stream
, buf_size
, vif
);
5380 spin_lock(&priv
->stream_lock
);
5382 stream
->state
= AMPDU_STREAM_ACTIVE
;
5385 spin_unlock(&priv
->stream_lock
);
5386 mwl8k_destroy_ba(hw
, idx
);
5387 spin_lock(&priv
->stream_lock
);
5388 wiphy_debug(hw
->wiphy
,
5389 "Failed adding stream for sta %pM tid %d\n",
5391 mwl8k_remove_stream(hw
, stream
);
5399 spin_unlock(&priv
->stream_lock
);
5403 static const struct ieee80211_ops mwl8k_ops
= {
5405 .start
= mwl8k_start
,
5407 .add_interface
= mwl8k_add_interface
,
5408 .remove_interface
= mwl8k_remove_interface
,
5409 .config
= mwl8k_config
,
5410 .bss_info_changed
= mwl8k_bss_info_changed
,
5411 .prepare_multicast
= mwl8k_prepare_multicast
,
5412 .configure_filter
= mwl8k_configure_filter
,
5413 .set_key
= mwl8k_set_key
,
5414 .set_rts_threshold
= mwl8k_set_rts_threshold
,
5415 .sta_add
= mwl8k_sta_add
,
5416 .sta_remove
= mwl8k_sta_remove
,
5417 .conf_tx
= mwl8k_conf_tx
,
5418 .get_stats
= mwl8k_get_stats
,
5419 .get_survey
= mwl8k_get_survey
,
5420 .ampdu_action
= mwl8k_ampdu_action
,
5423 static void mwl8k_finalize_join_worker(struct work_struct
*work
)
5425 struct mwl8k_priv
*priv
=
5426 container_of(work
, struct mwl8k_priv
, finalize_join_worker
);
5427 struct sk_buff
*skb
= priv
->beacon_skb
;
5428 struct ieee80211_mgmt
*mgmt
= (void *)skb
->data
;
5429 int len
= skb
->len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
5430 const u8
*tim
= cfg80211_find_ie(WLAN_EID_TIM
,
5431 mgmt
->u
.beacon
.variable
, len
);
5432 int dtim_period
= 1;
5434 if (tim
&& tim
[1] >= 2)
5435 dtim_period
= tim
[3];
5437 mwl8k_cmd_finalize_join(priv
->hw
, skb
->data
, skb
->len
, dtim_period
);
5440 priv
->beacon_skb
= NULL
;
5450 #define MWL8K_8366_AP_FW_API 3
5451 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5452 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5454 #define MWL8K_8764_AP_FW_API 1
5455 #define _MWL8K_8764_AP_FW(api) "mwl8k/fmimage_8764_ap-" #api ".fw"
5456 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5458 static struct mwl8k_device_info mwl8k_info_tbl
[] = {
5460 .part_name
= "88w8363",
5461 .helper_image
= "mwl8k/helper_8363.fw",
5462 .fw_image_sta
= "mwl8k/fmimage_8363.fw",
5465 .part_name
= "88w8687",
5466 .helper_image
= "mwl8k/helper_8687.fw",
5467 .fw_image_sta
= "mwl8k/fmimage_8687.fw",
5470 .part_name
= "88w8366",
5471 .helper_image
= "mwl8k/helper_8366.fw",
5472 .fw_image_sta
= "mwl8k/fmimage_8366.fw",
5473 .fw_image_ap
= MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
),
5474 .fw_api_ap
= MWL8K_8366_AP_FW_API
,
5475 .ap_rxd_ops
= &rxd_ap_ops
,
5478 .part_name
= "88w8764",
5479 .fw_image_ap
= MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API
),
5480 .fw_api_ap
= MWL8K_8764_AP_FW_API
,
5481 .ap_rxd_ops
= &rxd_ap_ops
,
5485 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5486 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5487 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5488 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5489 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5490 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5491 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
));
5493 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table
) = {
5494 { PCI_VDEVICE(MARVELL
, 0x2a0a), .driver_data
= MWL8363
, },
5495 { PCI_VDEVICE(MARVELL
, 0x2a0c), .driver_data
= MWL8363
, },
5496 { PCI_VDEVICE(MARVELL
, 0x2a24), .driver_data
= MWL8363
, },
5497 { PCI_VDEVICE(MARVELL
, 0x2a2b), .driver_data
= MWL8687
, },
5498 { PCI_VDEVICE(MARVELL
, 0x2a30), .driver_data
= MWL8687
, },
5499 { PCI_VDEVICE(MARVELL
, 0x2a40), .driver_data
= MWL8366
, },
5500 { PCI_VDEVICE(MARVELL
, 0x2a41), .driver_data
= MWL8366
, },
5501 { PCI_VDEVICE(MARVELL
, 0x2a42), .driver_data
= MWL8366
, },
5502 { PCI_VDEVICE(MARVELL
, 0x2a43), .driver_data
= MWL8366
, },
5503 { PCI_VDEVICE(MARVELL
, 0x2b36), .driver_data
= MWL8764
, },
5506 MODULE_DEVICE_TABLE(pci
, mwl8k_pci_id_table
);
5508 static int mwl8k_request_alt_fw(struct mwl8k_priv
*priv
)
5511 printk(KERN_ERR
"%s: Error requesting preferred fw %s.\n"
5512 "Trying alternative firmware %s\n", pci_name(priv
->pdev
),
5513 priv
->fw_pref
, priv
->fw_alt
);
5514 rc
= mwl8k_request_fw(priv
, priv
->fw_alt
, &priv
->fw_ucode
, true);
5516 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5517 pci_name(priv
->pdev
), priv
->fw_alt
);
5523 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
);
5524 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
)
5526 struct mwl8k_priv
*priv
= context
;
5527 struct mwl8k_device_info
*di
= priv
->device_info
;
5530 switch (priv
->fw_state
) {
5533 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
5534 pci_name(priv
->pdev
), di
->helper_image
);
5537 priv
->fw_helper
= fw
;
5538 rc
= mwl8k_request_fw(priv
, priv
->fw_pref
, &priv
->fw_ucode
,
5540 if (rc
&& priv
->fw_alt
) {
5541 rc
= mwl8k_request_alt_fw(priv
);
5544 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5548 priv
->fw_state
= FW_STATE_LOADING_PREF
;
5551 case FW_STATE_LOADING_PREF
:
5554 rc
= mwl8k_request_alt_fw(priv
);
5557 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5561 priv
->fw_ucode
= fw
;
5562 rc
= mwl8k_firmware_load_success(priv
);
5566 complete(&priv
->firmware_loading_complete
);
5570 case FW_STATE_LOADING_ALT
:
5572 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5573 pci_name(priv
->pdev
), di
->helper_image
);
5576 priv
->fw_ucode
= fw
;
5577 rc
= mwl8k_firmware_load_success(priv
);
5581 complete(&priv
->firmware_loading_complete
);
5585 printk(KERN_ERR
"%s: Unexpected firmware loading state: %d\n",
5586 MWL8K_NAME
, priv
->fw_state
);
5593 priv
->fw_state
= FW_STATE_ERROR
;
5594 complete(&priv
->firmware_loading_complete
);
5595 device_release_driver(&priv
->pdev
->dev
);
5596 mwl8k_release_firmware(priv
);
5599 #define MAX_RESTART_ATTEMPTS 1
5600 static int mwl8k_init_firmware(struct ieee80211_hw
*hw
, char *fw_image
,
5603 struct mwl8k_priv
*priv
= hw
->priv
;
5605 int count
= MAX_RESTART_ATTEMPTS
;
5608 /* Reset firmware and hardware */
5609 mwl8k_hw_reset(priv
);
5611 /* Ask userland hotplug daemon for the device firmware */
5612 rc
= mwl8k_request_firmware(priv
, fw_image
, nowait
);
5614 wiphy_err(hw
->wiphy
, "Firmware files not found\n");
5621 /* Load firmware into hardware */
5622 rc
= mwl8k_load_firmware(hw
);
5624 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5626 /* Reclaim memory once firmware is successfully loaded */
5627 mwl8k_release_firmware(priv
);
5630 /* FW did not start successfully;
5631 * lets try one more time
5634 wiphy_err(hw
->wiphy
, "Trying to reload the firmware again\n");
5642 static int mwl8k_init_txqs(struct ieee80211_hw
*hw
)
5644 struct mwl8k_priv
*priv
= hw
->priv
;
5648 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
5649 rc
= mwl8k_txq_init(hw
, i
);
5653 iowrite32(priv
->txq
[i
].txd_dma
,
5654 priv
->sram
+ priv
->txq_offset
[i
]);
5659 /* initialize hw after successfully loading a firmware image */
5660 static int mwl8k_probe_hw(struct ieee80211_hw
*hw
)
5662 struct mwl8k_priv
*priv
= hw
->priv
;
5667 priv
->rxd_ops
= priv
->device_info
->ap_rxd_ops
;
5668 if (priv
->rxd_ops
== NULL
) {
5669 wiphy_err(hw
->wiphy
,
5670 "Driver does not have AP firmware image support for this hardware\n");
5672 goto err_stop_firmware
;
5675 priv
->rxd_ops
= &rxd_sta_ops
;
5678 priv
->sniffer_enabled
= false;
5679 priv
->wmm_enabled
= false;
5680 priv
->pending_tx_pkts
= 0;
5681 atomic_set(&priv
->watchdog_event_pending
, 0);
5683 rc
= mwl8k_rxq_init(hw
, 0);
5685 goto err_stop_firmware
;
5686 rxq_refill(hw
, 0, INT_MAX
);
5688 /* For the sta firmware, we need to know the dma addresses of tx queues
5689 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5690 * prior to issuing this command. But for the AP case, we learn the
5691 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5692 * case we must initialize the tx queues after.
5694 priv
->num_ampdu_queues
= 0;
5696 rc
= mwl8k_init_txqs(hw
);
5698 goto err_free_queues
;
5701 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
5702 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5703 iowrite32(MWL8K_A2H_INT_TX_DONE
|MWL8K_A2H_INT_RX_READY
|
5704 MWL8K_A2H_INT_BA_WATCHDOG
,
5705 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL
);
5706 iowrite32(MWL8K_A2H_INT_OPC_DONE
,
5707 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
5709 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
5710 IRQF_SHARED
, MWL8K_NAME
, hw
);
5712 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
5713 goto err_free_queues
;
5717 * When hw restart is requested,
5718 * mac80211 will take care of clearing
5719 * the ampdu streams, so do not clear
5720 * the ampdu state here
5722 if (!priv
->hw_restart_in_progress
)
5723 memset(priv
->ampdu
, 0, sizeof(priv
->ampdu
));
5726 * Temporarily enable interrupts. Initial firmware host
5727 * commands use interrupts and avoid polling. Disable
5728 * interrupts when done.
5730 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5732 /* Get config data, mac addrs etc */
5734 rc
= mwl8k_cmd_get_hw_spec_ap(hw
);
5736 rc
= mwl8k_init_txqs(hw
);
5738 rc
= mwl8k_cmd_set_hw_spec(hw
);
5740 rc
= mwl8k_cmd_get_hw_spec_sta(hw
);
5743 wiphy_err(hw
->wiphy
, "Cannot initialise firmware\n");
5747 /* Turn radio off */
5748 rc
= mwl8k_cmd_radio_disable(hw
);
5750 wiphy_err(hw
->wiphy
, "Cannot disable\n");
5754 /* Clear MAC address */
5755 rc
= mwl8k_cmd_set_mac_addr(hw
, NULL
, "\x00\x00\x00\x00\x00\x00");
5757 wiphy_err(hw
->wiphy
, "Cannot clear MAC address\n");
5761 /* Configure Antennas */
5762 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_RX
, 0x3);
5764 wiphy_warn(hw
->wiphy
, "failed to set # of RX antennas");
5765 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_TX
, 0x7);
5767 wiphy_warn(hw
->wiphy
, "failed to set # of TX antennas");
5770 /* Disable interrupts */
5771 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5772 free_irq(priv
->pdev
->irq
, hw
);
5774 wiphy_info(hw
->wiphy
, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5775 priv
->device_info
->part_name
,
5776 priv
->hw_rev
, hw
->wiphy
->perm_addr
,
5777 priv
->ap_fw
? "AP" : "STA",
5778 (priv
->fw_rev
>> 24) & 0xff, (priv
->fw_rev
>> 16) & 0xff,
5779 (priv
->fw_rev
>> 8) & 0xff, priv
->fw_rev
& 0xff);
5784 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5785 free_irq(priv
->pdev
->irq
, hw
);
5788 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5789 mwl8k_txq_deinit(hw
, i
);
5790 mwl8k_rxq_deinit(hw
, 0);
5793 mwl8k_hw_reset(priv
);
5799 * invoke mwl8k_reload_firmware to change the firmware image after the device
5800 * has already been registered
5802 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
)
5805 struct mwl8k_priv
*priv
= hw
->priv
;
5806 struct mwl8k_vif
*vif
, *tmp_vif
;
5809 mwl8k_rxq_deinit(hw
, 0);
5812 * All the existing interfaces are re-added by the ieee80211_reconfig;
5813 * which means driver should remove existing interfaces before calling
5814 * ieee80211_restart_hw
5816 if (priv
->hw_restart_in_progress
)
5817 list_for_each_entry_safe(vif
, tmp_vif
, &priv
->vif_list
, list
)
5818 mwl8k_remove_vif(priv
, vif
);
5820 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5821 mwl8k_txq_deinit(hw
, i
);
5823 rc
= mwl8k_init_firmware(hw
, fw_image
, false);
5827 rc
= mwl8k_probe_hw(hw
);
5831 if (priv
->hw_restart_in_progress
)
5834 rc
= mwl8k_start(hw
);
5838 rc
= mwl8k_config(hw
, ~0);
5842 for (i
= 0; i
< MWL8K_TX_WMM_QUEUES
; i
++) {
5843 rc
= mwl8k_conf_tx(hw
, NULL
, i
, &priv
->wmm_params
[i
]);
5851 printk(KERN_WARNING
"mwl8k: Failed to reload firmware image.\n");
5855 static const struct ieee80211_iface_limit ap_if_limits
[] = {
5856 { .max
= 8, .types
= BIT(NL80211_IFTYPE_AP
) },
5857 { .max
= 1, .types
= BIT(NL80211_IFTYPE_STATION
) },
5860 static const struct ieee80211_iface_combination ap_if_comb
= {
5861 .limits
= ap_if_limits
,
5862 .n_limits
= ARRAY_SIZE(ap_if_limits
),
5863 .max_interfaces
= 8,
5864 .num_different_channels
= 1,
5868 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
)
5870 struct ieee80211_hw
*hw
= priv
->hw
;
5873 rc
= mwl8k_load_firmware(hw
);
5874 mwl8k_release_firmware(priv
);
5876 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5881 * Extra headroom is the size of the required DMA header
5882 * minus the size of the smallest 802.11 frame (CTS frame).
5884 hw
->extra_tx_headroom
=
5885 sizeof(struct mwl8k_dma_data
) - sizeof(struct ieee80211_cts
);
5887 hw
->extra_tx_headroom
-= priv
->ap_fw
? REDUCED_TX_HEADROOM
: 0;
5889 hw
->channel_change_time
= 10;
5891 hw
->queues
= MWL8K_TX_WMM_QUEUES
;
5893 /* Set rssi values to dBm */
5894 hw
->flags
|= IEEE80211_HW_SIGNAL_DBM
| IEEE80211_HW_HAS_RATE_CONTROL
;
5897 * Ask mac80211 to not to trigger PS mode
5898 * based on PM bit of incoming frames.
5901 hw
->flags
|= IEEE80211_HW_AP_LINK_PS
;
5903 hw
->vif_data_size
= sizeof(struct mwl8k_vif
);
5904 hw
->sta_data_size
= sizeof(struct mwl8k_sta
);
5906 priv
->macids_used
= 0;
5907 INIT_LIST_HEAD(&priv
->vif_list
);
5909 /* Set default radio state and preamble */
5910 priv
->radio_on
= false;
5911 priv
->radio_short_preamble
= false;
5913 /* Finalize join worker */
5914 INIT_WORK(&priv
->finalize_join_worker
, mwl8k_finalize_join_worker
);
5915 /* Handle watchdog ba events */
5916 INIT_WORK(&priv
->watchdog_ba_handle
, mwl8k_watchdog_ba_events
);
5917 /* To reload the firmware if it crashes */
5918 INIT_WORK(&priv
->fw_reload
, mwl8k_hw_restart_work
);
5920 /* TX reclaim and RX tasklets. */
5921 tasklet_init(&priv
->poll_tx_task
, mwl8k_tx_poll
, (unsigned long)hw
);
5922 tasklet_disable(&priv
->poll_tx_task
);
5923 tasklet_init(&priv
->poll_rx_task
, mwl8k_rx_poll
, (unsigned long)hw
);
5924 tasklet_disable(&priv
->poll_rx_task
);
5926 /* Power management cookie */
5927 priv
->cookie
= pci_alloc_consistent(priv
->pdev
, 4, &priv
->cookie_dma
);
5928 if (priv
->cookie
== NULL
)
5931 mutex_init(&priv
->fw_mutex
);
5932 priv
->fw_mutex_owner
= NULL
;
5933 priv
->fw_mutex_depth
= 0;
5934 priv
->hostcmd_wait
= NULL
;
5936 spin_lock_init(&priv
->tx_lock
);
5938 spin_lock_init(&priv
->stream_lock
);
5940 priv
->tx_wait
= NULL
;
5942 rc
= mwl8k_probe_hw(hw
);
5944 goto err_free_cookie
;
5946 hw
->wiphy
->interface_modes
= 0;
5948 if (priv
->ap_macids_supported
|| priv
->device_info
->fw_image_ap
) {
5949 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_AP
);
5950 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
5951 hw
->wiphy
->iface_combinations
= &ap_if_comb
;
5952 hw
->wiphy
->n_iface_combinations
= 1;
5955 if (priv
->sta_macids_supported
|| priv
->device_info
->fw_image_sta
)
5956 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
5958 rc
= ieee80211_register_hw(hw
);
5960 wiphy_err(hw
->wiphy
, "Cannot register device\n");
5961 goto err_unprobe_hw
;
5967 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5968 mwl8k_txq_deinit(hw
, i
);
5969 mwl8k_rxq_deinit(hw
, 0);
5972 if (priv
->cookie
!= NULL
)
5973 pci_free_consistent(priv
->pdev
, 4,
5974 priv
->cookie
, priv
->cookie_dma
);
5978 static int mwl8k_probe(struct pci_dev
*pdev
,
5979 const struct pci_device_id
*id
)
5981 static int printed_version
;
5982 struct ieee80211_hw
*hw
;
5983 struct mwl8k_priv
*priv
;
5984 struct mwl8k_device_info
*di
;
5987 if (!printed_version
) {
5988 printk(KERN_INFO
"%s version %s\n", MWL8K_DESC
, MWL8K_VERSION
);
5989 printed_version
= 1;
5993 rc
= pci_enable_device(pdev
);
5995 printk(KERN_ERR
"%s: Cannot enable new PCI device\n",
6000 rc
= pci_request_regions(pdev
, MWL8K_NAME
);
6002 printk(KERN_ERR
"%s: Cannot obtain PCI resources\n",
6004 goto err_disable_device
;
6007 pci_set_master(pdev
);
6010 hw
= ieee80211_alloc_hw(sizeof(*priv
), &mwl8k_ops
);
6012 printk(KERN_ERR
"%s: ieee80211 alloc failed\n", MWL8K_NAME
);
6017 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
6018 pci_set_drvdata(pdev
, hw
);
6023 priv
->device_info
= &mwl8k_info_tbl
[id
->driver_data
];
6025 if (id
->driver_data
== MWL8764
)
6026 priv
->is_8764
= true;
6028 priv
->sram
= pci_iomap(pdev
, 0, 0x10000);
6029 if (priv
->sram
== NULL
) {
6030 wiphy_err(hw
->wiphy
, "Cannot map device SRAM\n");
6036 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
6037 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
6039 priv
->regs
= pci_iomap(pdev
, 1, 0x10000);
6040 if (priv
->regs
== NULL
) {
6041 priv
->regs
= pci_iomap(pdev
, 2, 0x10000);
6042 if (priv
->regs
== NULL
) {
6043 wiphy_err(hw
->wiphy
, "Cannot map device registers\n");
6050 * Choose the initial fw image depending on user input. If a second
6051 * image is available, make it the alternative image that will be
6052 * loaded if the first one fails.
6054 init_completion(&priv
->firmware_loading_complete
);
6055 di
= priv
->device_info
;
6056 if (ap_mode_default
&& di
->fw_image_ap
) {
6057 priv
->fw_pref
= di
->fw_image_ap
;
6058 priv
->fw_alt
= di
->fw_image_sta
;
6059 } else if (!ap_mode_default
&& di
->fw_image_sta
) {
6060 priv
->fw_pref
= di
->fw_image_sta
;
6061 priv
->fw_alt
= di
->fw_image_ap
;
6062 } else if (ap_mode_default
&& !di
->fw_image_ap
&& di
->fw_image_sta
) {
6063 printk(KERN_WARNING
"AP fw is unavailable. Using STA fw.");
6064 priv
->fw_pref
= di
->fw_image_sta
;
6065 } else if (!ap_mode_default
&& !di
->fw_image_sta
&& di
->fw_image_ap
) {
6066 printk(KERN_WARNING
"STA fw is unavailable. Using AP fw.");
6067 priv
->fw_pref
= di
->fw_image_ap
;
6069 rc
= mwl8k_init_firmware(hw
, priv
->fw_pref
, true);
6071 goto err_stop_firmware
;
6073 priv
->hw_restart_in_progress
= false;
6075 priv
->running_bsses
= 0;
6080 mwl8k_hw_reset(priv
);
6083 if (priv
->regs
!= NULL
)
6084 pci_iounmap(pdev
, priv
->regs
);
6086 if (priv
->sram
!= NULL
)
6087 pci_iounmap(pdev
, priv
->sram
);
6089 pci_set_drvdata(pdev
, NULL
);
6090 ieee80211_free_hw(hw
);
6093 pci_release_regions(pdev
);
6096 pci_disable_device(pdev
);
6101 static void mwl8k_remove(struct pci_dev
*pdev
)
6103 struct ieee80211_hw
*hw
= pci_get_drvdata(pdev
);
6104 struct mwl8k_priv
*priv
;
6111 wait_for_completion(&priv
->firmware_loading_complete
);
6113 if (priv
->fw_state
== FW_STATE_ERROR
) {
6114 mwl8k_hw_reset(priv
);
6118 ieee80211_stop_queues(hw
);
6120 ieee80211_unregister_hw(hw
);
6122 /* Remove TX reclaim and RX tasklets. */
6123 tasklet_kill(&priv
->poll_tx_task
);
6124 tasklet_kill(&priv
->poll_rx_task
);
6127 mwl8k_hw_reset(priv
);
6129 /* Return all skbs to mac80211 */
6130 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
6131 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
6133 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
6134 mwl8k_txq_deinit(hw
, i
);
6136 mwl8k_rxq_deinit(hw
, 0);
6138 pci_free_consistent(priv
->pdev
, 4, priv
->cookie
, priv
->cookie_dma
);
6141 pci_iounmap(pdev
, priv
->regs
);
6142 pci_iounmap(pdev
, priv
->sram
);
6143 pci_set_drvdata(pdev
, NULL
);
6144 ieee80211_free_hw(hw
);
6145 pci_release_regions(pdev
);
6146 pci_disable_device(pdev
);
6149 static struct pci_driver mwl8k_driver
= {
6151 .id_table
= mwl8k_pci_id_table
,
6152 .probe
= mwl8k_probe
,
6153 .remove
= mwl8k_remove
,
6156 module_pci_driver(mwl8k_driver
);
6158 MODULE_DESCRIPTION(MWL8K_DESC
);
6159 MODULE_VERSION(MWL8K_VERSION
);
6160 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
6161 MODULE_LICENSE("GPL");