2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/interrupt.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/sched.h>
16 #include <linux/spinlock.h>
17 #include <linux/list.h>
18 #include <linux/pci.h>
19 #include <linux/delay.h>
20 #include <linux/completion.h>
21 #include <linux/etherdevice.h>
22 #include <linux/slab.h>
23 #include <net/mac80211.h>
24 #include <linux/moduleparam.h>
25 #include <linux/firmware.h>
26 #include <linux/workqueue.h>
28 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
29 #define MWL8K_NAME KBUILD_MODNAME
30 #define MWL8K_VERSION "0.13"
32 /* Module parameters */
33 static bool ap_mode_default
;
34 module_param(ap_mode_default
, bool, 0);
35 MODULE_PARM_DESC(ap_mode_default
,
36 "Set to 1 to make ap mode the default instead of sta mode");
38 /* Register definitions */
39 #define MWL8K_HIU_GEN_PTR 0x00000c10
40 #define MWL8K_MODE_STA 0x0000005a
41 #define MWL8K_MODE_AP 0x000000a5
42 #define MWL8K_HIU_INT_CODE 0x00000c14
43 #define MWL8K_FWSTA_READY 0xf0f1f2f4
44 #define MWL8K_FWAP_READY 0xf1f2f4a5
45 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
46 #define MWL8K_HIU_SCRATCH 0x00000c40
48 /* Host->device communications */
49 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
50 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
51 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
52 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
53 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
54 #define MWL8K_H2A_INT_DUMMY (1 << 20)
55 #define MWL8K_H2A_INT_RESET (1 << 15)
56 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
57 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
59 /* Device->host communications */
60 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
61 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
62 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
63 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
64 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
65 #define MWL8K_A2H_INT_DUMMY (1 << 20)
66 #define MWL8K_A2H_INT_BA_WATCHDOG (1 << 14)
67 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
68 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
69 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
70 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
71 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
72 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
73 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
74 #define MWL8K_A2H_INT_RX_READY (1 << 1)
75 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
77 /* HW micro second timer register
78 * located at offset 0xA600. This
79 * will be used to timestamp tx
83 #define MWL8K_HW_TIMER_REGISTER 0x0000a600
84 #define BBU_RXRDY_CNT_REG 0x0000a860
85 #define NOK_CCA_CNT_REG 0x0000a6a0
86 #define BBU_AVG_NOISE_VAL 0x67
88 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
89 MWL8K_A2H_INT_CHNL_SWITCHED | \
90 MWL8K_A2H_INT_QUEUE_EMPTY | \
91 MWL8K_A2H_INT_RADAR_DETECT | \
92 MWL8K_A2H_INT_RADIO_ON | \
93 MWL8K_A2H_INT_RADIO_OFF | \
94 MWL8K_A2H_INT_MAC_EVENT | \
95 MWL8K_A2H_INT_OPC_DONE | \
96 MWL8K_A2H_INT_RX_READY | \
97 MWL8K_A2H_INT_TX_DONE | \
98 MWL8K_A2H_INT_BA_WATCHDOG)
100 #define MWL8K_RX_QUEUES 1
101 #define MWL8K_TX_WMM_QUEUES 4
102 #define MWL8K_MAX_AMPDU_QUEUES 8
103 #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
104 #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
106 /* txpriorities are mapped with hw queues.
107 * Each hw queue has a txpriority.
109 #define TOTAL_HW_TX_QUEUES 8
111 /* Each HW queue can have one AMPDU stream.
112 * But, because one of the hw queue is reserved,
113 * maximum AMPDU queues that can be created are
114 * one short of total tx queues.
116 #define MWL8K_NUM_AMPDU_STREAMS (TOTAL_HW_TX_QUEUES - 1)
118 #define MWL8K_NUM_CHANS 18
122 void (*rxd_init
)(void *rxd
, dma_addr_t next_dma_addr
);
123 void (*rxd_refill
)(void *rxd
, dma_addr_t addr
, int len
);
124 int (*rxd_process
)(void *rxd
, struct ieee80211_rx_status
*status
,
125 __le16
*qos
, s8
*noise
);
128 struct mwl8k_device_info
{
133 struct rxd_ops
*ap_rxd_ops
;
137 struct mwl8k_rx_queue
{
140 /* hw receives here */
143 /* refill descs here */
150 DEFINE_DMA_UNMAP_ADDR(dma
);
154 struct mwl8k_tx_queue
{
155 /* hw transmits here */
158 /* sw appends here */
162 struct mwl8k_tx_desc
*txd
;
164 struct sk_buff
**skb
;
170 AMPDU_STREAM_IN_PROGRESS
,
174 struct mwl8k_ampdu_stream
{
175 struct ieee80211_sta
*sta
;
182 struct ieee80211_hw
*hw
;
183 struct pci_dev
*pdev
;
186 struct mwl8k_device_info
*device_info
;
192 const struct firmware
*fw_helper
;
193 const struct firmware
*fw_ucode
;
195 /* hardware/firmware parameters */
197 struct rxd_ops
*rxd_ops
;
198 struct ieee80211_supported_band band_24
;
199 struct ieee80211_channel channels_24
[14];
200 struct ieee80211_rate rates_24
[13];
201 struct ieee80211_supported_band band_50
;
202 struct ieee80211_channel channels_50
[4];
203 struct ieee80211_rate rates_50
[8];
204 u32 ap_macids_supported
;
205 u32 sta_macids_supported
;
207 /* Ampdu stream information */
209 spinlock_t stream_lock
;
210 struct mwl8k_ampdu_stream ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
211 struct work_struct watchdog_ba_handle
;
213 /* firmware access */
214 struct mutex fw_mutex
;
215 struct task_struct
*fw_mutex_owner
;
216 struct task_struct
*hw_restart_owner
;
218 struct completion
*hostcmd_wait
;
220 atomic_t watchdog_event_pending
;
222 /* lock held over TX and TX reap */
225 /* TX quiesce completion, protected by fw_mutex and tx_lock */
226 struct completion
*tx_wait
;
228 /* List of interfaces. */
230 struct list_head vif_list
;
232 /* power management status cookie from firmware */
234 dma_addr_t cookie_dma
;
242 * Running count of TX packets in flight, to avoid
243 * iterating over the transmit rings each time.
247 struct mwl8k_rx_queue rxq
[MWL8K_RX_QUEUES
];
248 struct mwl8k_tx_queue txq
[MWL8K_MAX_TX_QUEUES
];
249 u32 txq_offset
[MWL8K_MAX_TX_QUEUES
];
252 bool radio_short_preamble
;
253 bool sniffer_enabled
;
256 /* XXX need to convert this to handle multiple interfaces */
258 u8 capture_bssid
[ETH_ALEN
];
259 struct sk_buff
*beacon_skb
;
262 * This FJ worker has to be global as it is scheduled from the
263 * RX handler. At this point we don't know which interface it
264 * belongs to until the list of bssids waiting to complete join
267 struct work_struct finalize_join_worker
;
269 /* Tasklet to perform TX reclaim. */
270 struct tasklet_struct poll_tx_task
;
272 /* Tasklet to perform RX. */
273 struct tasklet_struct poll_rx_task
;
275 /* Most recently reported noise in dBm */
279 * preserve the queue configurations so they can be restored if/when
280 * the firmware image is swapped.
282 struct ieee80211_tx_queue_params wmm_params
[MWL8K_TX_WMM_QUEUES
];
284 /* To perform the task of reloading the firmware */
285 struct work_struct fw_reload
;
286 bool hw_restart_in_progress
;
288 /* async firmware loading state */
293 struct completion firmware_loading_complete
;
295 /* bitmap of running BSSes */
300 struct ieee80211_channel
*acs_chan
;
301 unsigned long channel_time
;
302 struct survey_info survey
[MWL8K_NUM_CHANS
];
305 #define MAX_WEP_KEY_LEN 13
306 #define NUM_WEP_KEYS 4
308 /* Per interface specific private data */
310 struct list_head list
;
311 struct ieee80211_vif
*vif
;
313 /* Firmware macid for this vif. */
316 /* Non AMPDU sequence number assigned by driver. */
322 u8 key
[sizeof(struct ieee80211_key_conf
) + MAX_WEP_KEY_LEN
];
323 } wep_key_conf
[NUM_WEP_KEYS
];
328 /* A flag to indicate is HW crypto is enabled for this bssid */
329 bool is_hw_crypto_enabled
;
331 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
332 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
334 struct tx_traffic_info
{
339 #define MWL8K_MAX_TID 8
341 /* Index into station database. Returned by UPDATE_STADB. */
344 struct tx_traffic_info tx_stats
[MWL8K_MAX_TID
];
346 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
348 static const struct ieee80211_channel mwl8k_channels_24
[] = {
349 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2412, .hw_value
= 1, },
350 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2417, .hw_value
= 2, },
351 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2422, .hw_value
= 3, },
352 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2427, .hw_value
= 4, },
353 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2432, .hw_value
= 5, },
354 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2437, .hw_value
= 6, },
355 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2442, .hw_value
= 7, },
356 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2447, .hw_value
= 8, },
357 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2452, .hw_value
= 9, },
358 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2457, .hw_value
= 10, },
359 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2462, .hw_value
= 11, },
360 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2467, .hw_value
= 12, },
361 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2472, .hw_value
= 13, },
362 { .band
= IEEE80211_BAND_2GHZ
, .center_freq
= 2484, .hw_value
= 14, },
365 static const struct ieee80211_rate mwl8k_rates_24
[] = {
366 { .bitrate
= 10, .hw_value
= 2, },
367 { .bitrate
= 20, .hw_value
= 4, },
368 { .bitrate
= 55, .hw_value
= 11, },
369 { .bitrate
= 110, .hw_value
= 22, },
370 { .bitrate
= 220, .hw_value
= 44, },
371 { .bitrate
= 60, .hw_value
= 12, },
372 { .bitrate
= 90, .hw_value
= 18, },
373 { .bitrate
= 120, .hw_value
= 24, },
374 { .bitrate
= 180, .hw_value
= 36, },
375 { .bitrate
= 240, .hw_value
= 48, },
376 { .bitrate
= 360, .hw_value
= 72, },
377 { .bitrate
= 480, .hw_value
= 96, },
378 { .bitrate
= 540, .hw_value
= 108, },
381 static const struct ieee80211_channel mwl8k_channels_50
[] = {
382 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5180, .hw_value
= 36, },
383 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5200, .hw_value
= 40, },
384 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5220, .hw_value
= 44, },
385 { .band
= IEEE80211_BAND_5GHZ
, .center_freq
= 5240, .hw_value
= 48, },
388 static const struct ieee80211_rate mwl8k_rates_50
[] = {
389 { .bitrate
= 60, .hw_value
= 12, },
390 { .bitrate
= 90, .hw_value
= 18, },
391 { .bitrate
= 120, .hw_value
= 24, },
392 { .bitrate
= 180, .hw_value
= 36, },
393 { .bitrate
= 240, .hw_value
= 48, },
394 { .bitrate
= 360, .hw_value
= 72, },
395 { .bitrate
= 480, .hw_value
= 96, },
396 { .bitrate
= 540, .hw_value
= 108, },
399 /* Set or get info from Firmware */
400 #define MWL8K_CMD_GET 0x0000
401 #define MWL8K_CMD_SET 0x0001
402 #define MWL8K_CMD_SET_LIST 0x0002
404 /* Firmware command codes */
405 #define MWL8K_CMD_CODE_DNLD 0x0001
406 #define MWL8K_CMD_GET_HW_SPEC 0x0003
407 #define MWL8K_CMD_SET_HW_SPEC 0x0004
408 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
409 #define MWL8K_CMD_GET_STAT 0x0014
410 #define MWL8K_CMD_BBP_REG_ACCESS 0x001a
411 #define MWL8K_CMD_RADIO_CONTROL 0x001c
412 #define MWL8K_CMD_RF_TX_POWER 0x001e
413 #define MWL8K_CMD_TX_POWER 0x001f
414 #define MWL8K_CMD_RF_ANTENNA 0x0020
415 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
416 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
417 #define MWL8K_CMD_SET_POST_SCAN 0x0108
418 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
419 #define MWL8K_CMD_SET_AID 0x010d
420 #define MWL8K_CMD_SET_RATE 0x0110
421 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
422 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
423 #define MWL8K_CMD_SET_SLOT 0x0114
424 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
425 #define MWL8K_CMD_SET_WMM_MODE 0x0123
426 #define MWL8K_CMD_MIMO_CONFIG 0x0125
427 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
428 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
429 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
430 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
431 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
432 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
433 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
434 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
435 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
436 #define MWL8K_CMD_UPDATE_STADB 0x1123
437 #define MWL8K_CMD_BASTREAM 0x1125
439 static const char *mwl8k_cmd_name(__le16 cmd
, char *buf
, int bufsize
)
441 u16 command
= le16_to_cpu(cmd
);
443 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
444 snprintf(buf, bufsize, "%s", #x);\
447 switch (command
& ~0x8000) {
448 MWL8K_CMDNAME(CODE_DNLD
);
449 MWL8K_CMDNAME(GET_HW_SPEC
);
450 MWL8K_CMDNAME(SET_HW_SPEC
);
451 MWL8K_CMDNAME(MAC_MULTICAST_ADR
);
452 MWL8K_CMDNAME(GET_STAT
);
453 MWL8K_CMDNAME(RADIO_CONTROL
);
454 MWL8K_CMDNAME(RF_TX_POWER
);
455 MWL8K_CMDNAME(TX_POWER
);
456 MWL8K_CMDNAME(RF_ANTENNA
);
457 MWL8K_CMDNAME(SET_BEACON
);
458 MWL8K_CMDNAME(SET_PRE_SCAN
);
459 MWL8K_CMDNAME(SET_POST_SCAN
);
460 MWL8K_CMDNAME(SET_RF_CHANNEL
);
461 MWL8K_CMDNAME(SET_AID
);
462 MWL8K_CMDNAME(SET_RATE
);
463 MWL8K_CMDNAME(SET_FINALIZE_JOIN
);
464 MWL8K_CMDNAME(RTS_THRESHOLD
);
465 MWL8K_CMDNAME(SET_SLOT
);
466 MWL8K_CMDNAME(SET_EDCA_PARAMS
);
467 MWL8K_CMDNAME(SET_WMM_MODE
);
468 MWL8K_CMDNAME(MIMO_CONFIG
);
469 MWL8K_CMDNAME(USE_FIXED_RATE
);
470 MWL8K_CMDNAME(ENABLE_SNIFFER
);
471 MWL8K_CMDNAME(SET_MAC_ADDR
);
472 MWL8K_CMDNAME(SET_RATEADAPT_MODE
);
473 MWL8K_CMDNAME(BSS_START
);
474 MWL8K_CMDNAME(SET_NEW_STN
);
475 MWL8K_CMDNAME(UPDATE_ENCRYPTION
);
476 MWL8K_CMDNAME(UPDATE_STADB
);
477 MWL8K_CMDNAME(BASTREAM
);
478 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP
);
480 snprintf(buf
, bufsize
, "0x%x", cmd
);
487 /* Hardware and firmware reset */
488 static void mwl8k_hw_reset(struct mwl8k_priv
*priv
)
490 iowrite32(MWL8K_H2A_INT_RESET
,
491 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
492 iowrite32(MWL8K_H2A_INT_RESET
,
493 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
497 /* Release fw image */
498 static void mwl8k_release_fw(const struct firmware
**fw
)
502 release_firmware(*fw
);
506 static void mwl8k_release_firmware(struct mwl8k_priv
*priv
)
508 mwl8k_release_fw(&priv
->fw_ucode
);
509 mwl8k_release_fw(&priv
->fw_helper
);
512 /* states for asynchronous f/w loading */
513 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
);
516 FW_STATE_LOADING_PREF
,
517 FW_STATE_LOADING_ALT
,
521 /* Request fw image */
522 static int mwl8k_request_fw(struct mwl8k_priv
*priv
,
523 const char *fname
, const struct firmware
**fw
,
526 /* release current image */
528 mwl8k_release_fw(fw
);
531 return request_firmware_nowait(THIS_MODULE
, 1, fname
,
532 &priv
->pdev
->dev
, GFP_KERNEL
,
533 priv
, mwl8k_fw_state_machine
);
535 return request_firmware(fw
, fname
, &priv
->pdev
->dev
);
538 static int mwl8k_request_firmware(struct mwl8k_priv
*priv
, char *fw_image
,
541 struct mwl8k_device_info
*di
= priv
->device_info
;
544 if (di
->helper_image
!= NULL
) {
546 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
547 &priv
->fw_helper
, true);
549 rc
= mwl8k_request_fw(priv
, di
->helper_image
,
550 &priv
->fw_helper
, false);
552 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
553 pci_name(priv
->pdev
), di
->helper_image
);
561 * if we get here, no helper image is needed. Skip the
562 * FW_STATE_INIT state.
564 priv
->fw_state
= FW_STATE_LOADING_PREF
;
565 rc
= mwl8k_request_fw(priv
, fw_image
,
569 rc
= mwl8k_request_fw(priv
, fw_image
,
570 &priv
->fw_ucode
, false);
572 printk(KERN_ERR
"%s: Error requesting firmware file %s\n",
573 pci_name(priv
->pdev
), fw_image
);
574 mwl8k_release_fw(&priv
->fw_helper
);
581 struct mwl8k_cmd_pkt
{
594 mwl8k_send_fw_load_cmd(struct mwl8k_priv
*priv
, void *data
, int length
)
596 void __iomem
*regs
= priv
->regs
;
600 dma_addr
= pci_map_single(priv
->pdev
, data
, length
, PCI_DMA_TODEVICE
);
601 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
604 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
605 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
606 iowrite32(MWL8K_H2A_INT_DOORBELL
,
607 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
608 iowrite32(MWL8K_H2A_INT_DUMMY
,
609 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
615 int_code
= ioread32(regs
+
616 MWL8K_HIU_H2A_INTERRUPT_STATUS
);
620 int_code
= ioread32(regs
+ MWL8K_HIU_INT_CODE
);
621 if (int_code
== MWL8K_INT_CODE_CMD_FINISHED
) {
622 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
630 pci_unmap_single(priv
->pdev
, dma_addr
, length
, PCI_DMA_TODEVICE
);
632 return loops
? 0 : -ETIMEDOUT
;
635 static int mwl8k_load_fw_image(struct mwl8k_priv
*priv
,
636 const u8
*data
, size_t length
)
638 struct mwl8k_cmd_pkt
*cmd
;
642 cmd
= kmalloc(sizeof(*cmd
) + 256, GFP_KERNEL
);
646 cmd
->code
= cpu_to_le16(MWL8K_CMD_CODE_DNLD
);
653 int block_size
= length
> 256 ? 256 : length
;
655 memcpy(cmd
->payload
, data
+ done
, block_size
);
656 cmd
->length
= cpu_to_le16(block_size
);
658 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
,
659 sizeof(*cmd
) + block_size
);
664 length
-= block_size
;
669 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
, sizeof(*cmd
));
677 static int mwl8k_feed_fw_image(struct mwl8k_priv
*priv
,
678 const u8
*data
, size_t length
)
680 unsigned char *buffer
;
681 int may_continue
, rc
= 0;
682 u32 done
, prev_block_size
;
684 buffer
= kmalloc(1024, GFP_KERNEL
);
691 while (may_continue
> 0) {
694 block_size
= ioread32(priv
->regs
+ MWL8K_HIU_SCRATCH
);
695 if (block_size
& 1) {
699 done
+= prev_block_size
;
700 length
-= prev_block_size
;
703 if (block_size
> 1024 || block_size
> length
) {
713 if (block_size
== 0) {
720 prev_block_size
= block_size
;
721 memcpy(buffer
, data
+ done
, block_size
);
723 rc
= mwl8k_send_fw_load_cmd(priv
, buffer
, block_size
);
728 if (!rc
&& length
!= 0)
736 static int mwl8k_load_firmware(struct ieee80211_hw
*hw
)
738 struct mwl8k_priv
*priv
= hw
->priv
;
739 const struct firmware
*fw
= priv
->fw_ucode
;
743 if (!memcmp(fw
->data
, "\x01\x00\x00\x00", 4) && !priv
->is_8764
) {
744 const struct firmware
*helper
= priv
->fw_helper
;
746 if (helper
== NULL
) {
747 printk(KERN_ERR
"%s: helper image needed but none "
748 "given\n", pci_name(priv
->pdev
));
752 rc
= mwl8k_load_fw_image(priv
, helper
->data
, helper
->size
);
754 printk(KERN_ERR
"%s: unable to load firmware "
755 "helper image\n", pci_name(priv
->pdev
));
760 rc
= mwl8k_feed_fw_image(priv
, fw
->data
, fw
->size
);
763 rc
= mwl8k_feed_fw_image(priv
, fw
->data
, fw
->size
);
765 rc
= mwl8k_load_fw_image(priv
, fw
->data
, fw
->size
);
769 printk(KERN_ERR
"%s: unable to load firmware image\n",
770 pci_name(priv
->pdev
));
774 iowrite32(MWL8K_MODE_STA
, priv
->regs
+ MWL8K_HIU_GEN_PTR
);
780 ready_code
= ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
781 if (ready_code
== MWL8K_FWAP_READY
) {
784 } else if (ready_code
== MWL8K_FWSTA_READY
) {
793 return loops
? 0 : -ETIMEDOUT
;
797 /* DMA header used by firmware and hardware. */
798 struct mwl8k_dma_data
{
800 struct ieee80211_hdr wh
;
804 /* Routines to add/remove DMA header from skb. */
805 static inline void mwl8k_remove_dma_header(struct sk_buff
*skb
, __le16 qos
)
807 struct mwl8k_dma_data
*tr
;
810 tr
= (struct mwl8k_dma_data
*)skb
->data
;
811 hdrlen
= ieee80211_hdrlen(tr
->wh
.frame_control
);
813 if (hdrlen
!= sizeof(tr
->wh
)) {
814 if (ieee80211_is_data_qos(tr
->wh
.frame_control
)) {
815 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
- 2);
816 *((__le16
*)(tr
->data
- 2)) = qos
;
818 memmove(tr
->data
- hdrlen
, &tr
->wh
, hdrlen
);
822 if (hdrlen
!= sizeof(*tr
))
823 skb_pull(skb
, sizeof(*tr
) - hdrlen
);
826 #define REDUCED_TX_HEADROOM 8
829 mwl8k_add_dma_header(struct mwl8k_priv
*priv
, struct sk_buff
*skb
,
830 int head_pad
, int tail_pad
)
832 struct ieee80211_hdr
*wh
;
835 struct mwl8k_dma_data
*tr
;
838 * Add a firmware DMA header; the firmware requires that we
839 * present a 2-byte payload length followed by a 4-address
840 * header (without QoS field), followed (optionally) by any
841 * WEP/ExtIV header (but only filled in for CCMP).
843 wh
= (struct ieee80211_hdr
*)skb
->data
;
845 hdrlen
= ieee80211_hdrlen(wh
->frame_control
);
848 * Check if skb_resize is required because of
849 * tx_headroom adjustment.
851 if (priv
->ap_fw
&& (hdrlen
< (sizeof(struct ieee80211_cts
)
852 + REDUCED_TX_HEADROOM
))) {
853 if (pskb_expand_head(skb
, REDUCED_TX_HEADROOM
, 0, GFP_ATOMIC
)) {
855 wiphy_err(priv
->hw
->wiphy
,
856 "Failed to reallocate TX buffer\n");
859 skb
->truesize
+= REDUCED_TX_HEADROOM
;
862 reqd_hdrlen
= sizeof(*tr
) + head_pad
;
864 if (hdrlen
!= reqd_hdrlen
)
865 skb_push(skb
, reqd_hdrlen
- hdrlen
);
867 if (ieee80211_is_data_qos(wh
->frame_control
))
868 hdrlen
-= IEEE80211_QOS_CTL_LEN
;
870 tr
= (struct mwl8k_dma_data
*)skb
->data
;
872 memmove(&tr
->wh
, wh
, hdrlen
);
873 if (hdrlen
!= sizeof(tr
->wh
))
874 memset(((void *)&tr
->wh
) + hdrlen
, 0, sizeof(tr
->wh
) - hdrlen
);
877 * Firmware length is the length of the fully formed "802.11
878 * payload". That is, everything except for the 802.11 header.
879 * This includes all crypto material including the MIC.
881 tr
->fwlen
= cpu_to_le16(skb
->len
- sizeof(*tr
) + tail_pad
);
884 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv
*priv
,
887 struct ieee80211_hdr
*wh
;
888 struct ieee80211_tx_info
*tx_info
;
889 struct ieee80211_key_conf
*key_conf
;
893 wh
= (struct ieee80211_hdr
*)skb
->data
;
895 tx_info
= IEEE80211_SKB_CB(skb
);
898 if (ieee80211_is_data(wh
->frame_control
))
899 key_conf
= tx_info
->control
.hw_key
;
902 * Make sure the packet header is in the DMA header format (4-address
903 * without QoS), and add head & tail padding when HW crypto is enabled.
905 * We have the following trailer padding requirements:
906 * - WEP: 4 trailer bytes (ICV)
907 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
908 * - CCMP: 8 trailer bytes (MIC)
911 if (key_conf
!= NULL
) {
912 head_pad
= key_conf
->iv_len
;
913 switch (key_conf
->cipher
) {
914 case WLAN_CIPHER_SUITE_WEP40
:
915 case WLAN_CIPHER_SUITE_WEP104
:
918 case WLAN_CIPHER_SUITE_TKIP
:
921 case WLAN_CIPHER_SUITE_CCMP
:
926 mwl8k_add_dma_header(priv
, skb
, head_pad
, data_pad
);
930 * Packet reception for 88w8366/88w8764 AP firmware.
932 struct mwl8k_rxd_ap
{
936 __le32 pkt_phys_addr
;
937 __le32 next_rxd_phys_addr
;
941 __le32 hw_noise_floor_info
;
950 #define MWL8K_AP_RATE_INFO_MCS_FORMAT 0x80
951 #define MWL8K_AP_RATE_INFO_40MHZ 0x40
952 #define MWL8K_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
954 #define MWL8K_AP_RX_CTRL_OWNED_BY_HOST 0x80
956 /* 8366/8764 AP rx_status bits */
957 #define MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
958 #define MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
959 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
960 #define MWL8K_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
961 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
963 static void mwl8k_rxd_ap_init(void *_rxd
, dma_addr_t next_dma_addr
)
965 struct mwl8k_rxd_ap
*rxd
= _rxd
;
967 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
968 rxd
->rx_ctrl
= MWL8K_AP_RX_CTRL_OWNED_BY_HOST
;
971 static void mwl8k_rxd_ap_refill(void *_rxd
, dma_addr_t addr
, int len
)
973 struct mwl8k_rxd_ap
*rxd
= _rxd
;
975 rxd
->pkt_len
= cpu_to_le16(len
);
976 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
982 mwl8k_rxd_ap_process(void *_rxd
, struct ieee80211_rx_status
*status
,
983 __le16
*qos
, s8
*noise
)
985 struct mwl8k_rxd_ap
*rxd
= _rxd
;
987 if (!(rxd
->rx_ctrl
& MWL8K_AP_RX_CTRL_OWNED_BY_HOST
))
991 memset(status
, 0, sizeof(*status
));
993 status
->signal
= -rxd
->rssi
;
994 *noise
= -rxd
->noise_floor
;
996 if (rxd
->rate
& MWL8K_AP_RATE_INFO_MCS_FORMAT
) {
997 status
->flag
|= RX_FLAG_HT
;
998 if (rxd
->rate
& MWL8K_AP_RATE_INFO_40MHZ
)
999 status
->flag
|= RX_FLAG_40MHZ
;
1000 status
->rate_idx
= MWL8K_AP_RATE_INFO_RATEID(rxd
->rate
);
1004 for (i
= 0; i
< ARRAY_SIZE(mwl8k_rates_24
); i
++) {
1005 if (mwl8k_rates_24
[i
].hw_value
== rxd
->rate
) {
1006 status
->rate_idx
= i
;
1012 if (rxd
->channel
> 14) {
1013 status
->band
= IEEE80211_BAND_5GHZ
;
1014 if (!(status
->flag
& RX_FLAG_HT
))
1015 status
->rate_idx
-= 5;
1017 status
->band
= IEEE80211_BAND_2GHZ
;
1019 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
1022 *qos
= rxd
->qos_control
;
1024 if ((rxd
->rx_status
!= MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR
) &&
1025 (rxd
->rx_status
& MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK
) &&
1026 (rxd
->rx_status
& MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR
))
1027 status
->flag
|= RX_FLAG_MMIC_ERROR
;
1029 return le16_to_cpu(rxd
->pkt_len
);
1032 static struct rxd_ops rxd_ap_ops
= {
1033 .rxd_size
= sizeof(struct mwl8k_rxd_ap
),
1034 .rxd_init
= mwl8k_rxd_ap_init
,
1035 .rxd_refill
= mwl8k_rxd_ap_refill
,
1036 .rxd_process
= mwl8k_rxd_ap_process
,
1040 * Packet reception for STA firmware.
1042 struct mwl8k_rxd_sta
{
1046 __le32 pkt_phys_addr
;
1047 __le32 next_rxd_phys_addr
;
1059 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1060 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1061 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1062 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1063 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1064 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1066 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1067 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1068 /* ICV=0 or MIC=1 */
1069 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1070 /* Key is uploaded only in failure case */
1071 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1073 static void mwl8k_rxd_sta_init(void *_rxd
, dma_addr_t next_dma_addr
)
1075 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1077 rxd
->next_rxd_phys_addr
= cpu_to_le32(next_dma_addr
);
1078 rxd
->rx_ctrl
= MWL8K_STA_RX_CTRL_OWNED_BY_HOST
;
1081 static void mwl8k_rxd_sta_refill(void *_rxd
, dma_addr_t addr
, int len
)
1083 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1085 rxd
->pkt_len
= cpu_to_le16(len
);
1086 rxd
->pkt_phys_addr
= cpu_to_le32(addr
);
1092 mwl8k_rxd_sta_process(void *_rxd
, struct ieee80211_rx_status
*status
,
1093 __le16
*qos
, s8
*noise
)
1095 struct mwl8k_rxd_sta
*rxd
= _rxd
;
1098 if (!(rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_OWNED_BY_HOST
))
1102 rate_info
= le16_to_cpu(rxd
->rate_info
);
1104 memset(status
, 0, sizeof(*status
));
1106 status
->signal
= -rxd
->rssi
;
1107 *noise
= -rxd
->noise_level
;
1108 status
->antenna
= MWL8K_STA_RATE_INFO_ANTSELECT(rate_info
);
1109 status
->rate_idx
= MWL8K_STA_RATE_INFO_RATEID(rate_info
);
1111 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTPRE
)
1112 status
->flag
|= RX_FLAG_SHORTPRE
;
1113 if (rate_info
& MWL8K_STA_RATE_INFO_40MHZ
)
1114 status
->flag
|= RX_FLAG_40MHZ
;
1115 if (rate_info
& MWL8K_STA_RATE_INFO_SHORTGI
)
1116 status
->flag
|= RX_FLAG_SHORT_GI
;
1117 if (rate_info
& MWL8K_STA_RATE_INFO_MCS_FORMAT
)
1118 status
->flag
|= RX_FLAG_HT
;
1120 if (rxd
->channel
> 14) {
1121 status
->band
= IEEE80211_BAND_5GHZ
;
1122 if (!(status
->flag
& RX_FLAG_HT
))
1123 status
->rate_idx
-= 5;
1125 status
->band
= IEEE80211_BAND_2GHZ
;
1127 status
->freq
= ieee80211_channel_to_frequency(rxd
->channel
,
1130 *qos
= rxd
->qos_control
;
1131 if ((rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DECRYPT_ERROR
) &&
1132 (rxd
->rx_ctrl
& MWL8K_STA_RX_CTRL_DEC_ERR_TYPE
))
1133 status
->flag
|= RX_FLAG_MMIC_ERROR
;
1135 return le16_to_cpu(rxd
->pkt_len
);
1138 static struct rxd_ops rxd_sta_ops
= {
1139 .rxd_size
= sizeof(struct mwl8k_rxd_sta
),
1140 .rxd_init
= mwl8k_rxd_sta_init
,
1141 .rxd_refill
= mwl8k_rxd_sta_refill
,
1142 .rxd_process
= mwl8k_rxd_sta_process
,
1146 #define MWL8K_RX_DESCS 256
1147 #define MWL8K_RX_MAXSZ 3800
1149 static int mwl8k_rxq_init(struct ieee80211_hw
*hw
, int index
)
1151 struct mwl8k_priv
*priv
= hw
->priv
;
1152 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1160 size
= MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
;
1162 rxq
->rxd
= pci_alloc_consistent(priv
->pdev
, size
, &rxq
->rxd_dma
);
1163 if (rxq
->rxd
== NULL
) {
1164 wiphy_err(hw
->wiphy
, "failed to alloc RX descriptors\n");
1167 memset(rxq
->rxd
, 0, size
);
1169 rxq
->buf
= kcalloc(MWL8K_RX_DESCS
, sizeof(*rxq
->buf
), GFP_KERNEL
);
1170 if (rxq
->buf
== NULL
) {
1171 pci_free_consistent(priv
->pdev
, size
, rxq
->rxd
, rxq
->rxd_dma
);
1175 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1179 dma_addr_t next_dma_addr
;
1181 desc_size
= priv
->rxd_ops
->rxd_size
;
1182 rxd
= rxq
->rxd
+ (i
* priv
->rxd_ops
->rxd_size
);
1185 if (nexti
== MWL8K_RX_DESCS
)
1187 next_dma_addr
= rxq
->rxd_dma
+ (nexti
* desc_size
);
1189 priv
->rxd_ops
->rxd_init(rxd
, next_dma_addr
);
1195 static int rxq_refill(struct ieee80211_hw
*hw
, int index
, int limit
)
1197 struct mwl8k_priv
*priv
= hw
->priv
;
1198 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1202 while (rxq
->rxd_count
< MWL8K_RX_DESCS
&& limit
--) {
1203 struct sk_buff
*skb
;
1208 skb
= dev_alloc_skb(MWL8K_RX_MAXSZ
);
1212 addr
= pci_map_single(priv
->pdev
, skb
->data
,
1213 MWL8K_RX_MAXSZ
, DMA_FROM_DEVICE
);
1217 if (rxq
->tail
== MWL8K_RX_DESCS
)
1219 rxq
->buf
[rx
].skb
= skb
;
1220 dma_unmap_addr_set(&rxq
->buf
[rx
], dma
, addr
);
1222 rxd
= rxq
->rxd
+ (rx
* priv
->rxd_ops
->rxd_size
);
1223 priv
->rxd_ops
->rxd_refill(rxd
, addr
, MWL8K_RX_MAXSZ
);
1231 /* Must be called only when the card's reception is completely halted */
1232 static void mwl8k_rxq_deinit(struct ieee80211_hw
*hw
, int index
)
1234 struct mwl8k_priv
*priv
= hw
->priv
;
1235 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1238 if (rxq
->rxd
== NULL
)
1241 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
1242 if (rxq
->buf
[i
].skb
!= NULL
) {
1243 pci_unmap_single(priv
->pdev
,
1244 dma_unmap_addr(&rxq
->buf
[i
], dma
),
1245 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1246 dma_unmap_addr_set(&rxq
->buf
[i
], dma
, 0);
1248 kfree_skb(rxq
->buf
[i
].skb
);
1249 rxq
->buf
[i
].skb
= NULL
;
1256 pci_free_consistent(priv
->pdev
,
1257 MWL8K_RX_DESCS
* priv
->rxd_ops
->rxd_size
,
1258 rxq
->rxd
, rxq
->rxd_dma
);
1264 * Scan a list of BSSIDs to process for finalize join.
1265 * Allows for extension to process multiple BSSIDs.
1268 mwl8k_capture_bssid(struct mwl8k_priv
*priv
, struct ieee80211_hdr
*wh
)
1270 return priv
->capture_beacon
&&
1271 ieee80211_is_beacon(wh
->frame_control
) &&
1272 ether_addr_equal_64bits(wh
->addr3
, priv
->capture_bssid
);
1275 static inline void mwl8k_save_beacon(struct ieee80211_hw
*hw
,
1276 struct sk_buff
*skb
)
1278 struct mwl8k_priv
*priv
= hw
->priv
;
1280 priv
->capture_beacon
= false;
1281 memset(priv
->capture_bssid
, 0, ETH_ALEN
);
1284 * Use GFP_ATOMIC as rxq_process is called from
1285 * the primary interrupt handler, memory allocation call
1288 priv
->beacon_skb
= skb_copy(skb
, GFP_ATOMIC
);
1289 if (priv
->beacon_skb
!= NULL
)
1290 ieee80211_queue_work(hw
, &priv
->finalize_join_worker
);
1293 static inline struct mwl8k_vif
*mwl8k_find_vif_bss(struct list_head
*vif_list
,
1296 struct mwl8k_vif
*mwl8k_vif
;
1298 list_for_each_entry(mwl8k_vif
,
1300 if (memcmp(bssid
, mwl8k_vif
->bssid
,
1308 static int rxq_process(struct ieee80211_hw
*hw
, int index
, int limit
)
1310 struct mwl8k_priv
*priv
= hw
->priv
;
1311 struct mwl8k_vif
*mwl8k_vif
= NULL
;
1312 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
1316 while (rxq
->rxd_count
&& limit
--) {
1317 struct sk_buff
*skb
;
1320 struct ieee80211_rx_status status
;
1321 struct ieee80211_hdr
*wh
;
1324 skb
= rxq
->buf
[rxq
->head
].skb
;
1328 rxd
= rxq
->rxd
+ (rxq
->head
* priv
->rxd_ops
->rxd_size
);
1330 pkt_len
= priv
->rxd_ops
->rxd_process(rxd
, &status
, &qos
,
1335 rxq
->buf
[rxq
->head
].skb
= NULL
;
1337 pci_unmap_single(priv
->pdev
,
1338 dma_unmap_addr(&rxq
->buf
[rxq
->head
], dma
),
1339 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
1340 dma_unmap_addr_set(&rxq
->buf
[rxq
->head
], dma
, 0);
1343 if (rxq
->head
== MWL8K_RX_DESCS
)
1348 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1351 * Check for a pending join operation. Save a
1352 * copy of the beacon and schedule a tasklet to
1353 * send a FINALIZE_JOIN command to the firmware.
1355 if (mwl8k_capture_bssid(priv
, (void *)skb
->data
))
1356 mwl8k_save_beacon(hw
, skb
);
1358 if (ieee80211_has_protected(wh
->frame_control
)) {
1360 /* Check if hw crypto has been enabled for
1361 * this bss. If yes, set the status flags
1364 mwl8k_vif
= mwl8k_find_vif_bss(&priv
->vif_list
,
1367 if (mwl8k_vif
!= NULL
&&
1368 mwl8k_vif
->is_hw_crypto_enabled
) {
1370 * When MMIC ERROR is encountered
1371 * by the firmware, payload is
1372 * dropped and only 32 bytes of
1373 * mwl8k Firmware header is sent
1376 * We need to add four bytes of
1377 * key information. In it
1378 * MAC80211 expects keyidx set to
1379 * 0 for triggering Counter
1380 * Measure of MMIC failure.
1382 if (status
.flag
& RX_FLAG_MMIC_ERROR
) {
1383 struct mwl8k_dma_data
*tr
;
1384 tr
= (struct mwl8k_dma_data
*)skb
->data
;
1385 memset((void *)&(tr
->data
), 0, 4);
1389 if (!ieee80211_is_auth(wh
->frame_control
))
1390 status
.flag
|= RX_FLAG_IV_STRIPPED
|
1392 RX_FLAG_MMIC_STRIPPED
;
1396 skb_put(skb
, pkt_len
);
1397 mwl8k_remove_dma_header(skb
, qos
);
1398 memcpy(IEEE80211_SKB_RXCB(skb
), &status
, sizeof(status
));
1399 ieee80211_rx_irqsafe(hw
, skb
);
1409 * Packet transmission.
1412 #define MWL8K_TXD_STATUS_OK 0x00000001
1413 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1414 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1415 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1416 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1418 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1419 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1420 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1421 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1422 #define MWL8K_QOS_EOSP 0x0010
1424 struct mwl8k_tx_desc
{
1429 __le32 pkt_phys_addr
;
1431 __u8 dest_MAC_addr
[ETH_ALEN
];
1432 __le32 next_txd_phys_addr
;
1439 #define MWL8K_TX_DESCS 128
1441 static int mwl8k_txq_init(struct ieee80211_hw
*hw
, int index
)
1443 struct mwl8k_priv
*priv
= hw
->priv
;
1444 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1452 size
= MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
);
1454 txq
->txd
= pci_alloc_consistent(priv
->pdev
, size
, &txq
->txd_dma
);
1455 if (txq
->txd
== NULL
) {
1456 wiphy_err(hw
->wiphy
, "failed to alloc TX descriptors\n");
1459 memset(txq
->txd
, 0, size
);
1461 txq
->skb
= kcalloc(MWL8K_TX_DESCS
, sizeof(*txq
->skb
), GFP_KERNEL
);
1462 if (txq
->skb
== NULL
) {
1463 pci_free_consistent(priv
->pdev
, size
, txq
->txd
, txq
->txd_dma
);
1467 for (i
= 0; i
< MWL8K_TX_DESCS
; i
++) {
1468 struct mwl8k_tx_desc
*tx_desc
;
1471 tx_desc
= txq
->txd
+ i
;
1472 nexti
= (i
+ 1) % MWL8K_TX_DESCS
;
1474 tx_desc
->status
= 0;
1475 tx_desc
->next_txd_phys_addr
=
1476 cpu_to_le32(txq
->txd_dma
+ nexti
* sizeof(*tx_desc
));
1482 static inline void mwl8k_tx_start(struct mwl8k_priv
*priv
)
1484 iowrite32(MWL8K_H2A_INT_PPA_READY
,
1485 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1486 iowrite32(MWL8K_H2A_INT_DUMMY
,
1487 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1488 ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
1491 static void mwl8k_dump_tx_rings(struct ieee80211_hw
*hw
)
1493 struct mwl8k_priv
*priv
= hw
->priv
;
1496 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
1497 struct mwl8k_tx_queue
*txq
= priv
->txq
+ i
;
1503 for (desc
= 0; desc
< MWL8K_TX_DESCS
; desc
++) {
1504 struct mwl8k_tx_desc
*tx_desc
= txq
->txd
+ desc
;
1507 status
= le32_to_cpu(tx_desc
->status
);
1508 if (status
& MWL8K_TXD_STATUS_FW_OWNED
)
1513 if (tx_desc
->pkt_len
== 0)
1517 wiphy_err(hw
->wiphy
,
1518 "txq[%d] len=%d head=%d tail=%d "
1519 "fw_owned=%d drv_owned=%d unused=%d\n",
1521 txq
->len
, txq
->head
, txq
->tail
,
1522 fw_owned
, drv_owned
, unused
);
1527 * Must be called with priv->fw_mutex held and tx queues stopped.
1529 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1531 static int mwl8k_tx_wait_empty(struct ieee80211_hw
*hw
)
1533 struct mwl8k_priv
*priv
= hw
->priv
;
1534 DECLARE_COMPLETION_ONSTACK(tx_wait
);
1540 /* Since fw restart is in progress, allow only the firmware
1541 * commands from the restart code and block the other
1542 * commands since they are going to fail in any case since
1543 * the firmware has crashed
1545 if (priv
->hw_restart_in_progress
) {
1546 if (priv
->hw_restart_owner
== current
)
1552 if (atomic_read(&priv
->watchdog_event_pending
))
1556 * The TX queues are stopped at this point, so this test
1557 * doesn't need to take ->tx_lock.
1559 if (!priv
->pending_tx_pkts
)
1565 spin_lock_bh(&priv
->tx_lock
);
1566 priv
->tx_wait
= &tx_wait
;
1569 unsigned long timeout
;
1571 oldcount
= priv
->pending_tx_pkts
;
1573 spin_unlock_bh(&priv
->tx_lock
);
1574 timeout
= wait_for_completion_timeout(&tx_wait
,
1575 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS
));
1577 if (atomic_read(&priv
->watchdog_event_pending
)) {
1578 spin_lock_bh(&priv
->tx_lock
);
1579 priv
->tx_wait
= NULL
;
1580 spin_unlock_bh(&priv
->tx_lock
);
1584 spin_lock_bh(&priv
->tx_lock
);
1586 if (timeout
|| !priv
->pending_tx_pkts
) {
1587 WARN_ON(priv
->pending_tx_pkts
);
1589 wiphy_notice(hw
->wiphy
, "tx rings drained\n");
1594 mwl8k_tx_start(priv
);
1599 if (priv
->pending_tx_pkts
< oldcount
) {
1600 wiphy_notice(hw
->wiphy
,
1601 "waiting for tx rings to drain (%d -> %d pkts)\n",
1602 oldcount
, priv
->pending_tx_pkts
);
1607 priv
->tx_wait
= NULL
;
1609 wiphy_err(hw
->wiphy
, "tx rings stuck for %d ms\n",
1610 MWL8K_TX_WAIT_TIMEOUT_MS
);
1611 mwl8k_dump_tx_rings(hw
);
1612 priv
->hw_restart_in_progress
= true;
1613 ieee80211_queue_work(hw
, &priv
->fw_reload
);
1617 priv
->tx_wait
= NULL
;
1618 spin_unlock_bh(&priv
->tx_lock
);
1623 #define MWL8K_TXD_SUCCESS(status) \
1624 ((status) & (MWL8K_TXD_STATUS_OK | \
1625 MWL8K_TXD_STATUS_OK_RETRY | \
1626 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1628 static int mwl8k_tid_queue_mapping(u8 tid
)
1635 return IEEE80211_AC_BE
;
1639 return IEEE80211_AC_BK
;
1643 return IEEE80211_AC_VI
;
1647 return IEEE80211_AC_VO
;
1655 /* The firmware will fill in the rate information
1656 * for each packet that gets queued in the hardware
1657 * and these macros will interpret that info.
1660 #define RI_FORMAT(a) (a & 0x0001)
1661 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1664 mwl8k_txq_reclaim(struct ieee80211_hw
*hw
, int index
, int limit
, int force
)
1666 struct mwl8k_priv
*priv
= hw
->priv
;
1667 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1671 while (txq
->len
> 0 && limit
--) {
1673 struct mwl8k_tx_desc
*tx_desc
;
1676 struct sk_buff
*skb
;
1677 struct ieee80211_tx_info
*info
;
1679 struct ieee80211_sta
*sta
;
1680 struct mwl8k_sta
*sta_info
= NULL
;
1682 struct ieee80211_hdr
*wh
;
1685 tx_desc
= txq
->txd
+ tx
;
1687 status
= le32_to_cpu(tx_desc
->status
);
1689 if (status
& MWL8K_TXD_STATUS_FW_OWNED
) {
1693 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
);
1696 txq
->head
= (tx
+ 1) % MWL8K_TX_DESCS
;
1697 BUG_ON(txq
->len
== 0);
1699 priv
->pending_tx_pkts
--;
1701 addr
= le32_to_cpu(tx_desc
->pkt_phys_addr
);
1702 size
= le16_to_cpu(tx_desc
->pkt_len
);
1704 txq
->skb
[tx
] = NULL
;
1706 BUG_ON(skb
== NULL
);
1707 pci_unmap_single(priv
->pdev
, addr
, size
, PCI_DMA_TODEVICE
);
1709 mwl8k_remove_dma_header(skb
, tx_desc
->qos_control
);
1711 wh
= (struct ieee80211_hdr
*) skb
->data
;
1713 /* Mark descriptor as unused */
1714 tx_desc
->pkt_phys_addr
= 0;
1715 tx_desc
->pkt_len
= 0;
1717 info
= IEEE80211_SKB_CB(skb
);
1718 if (ieee80211_is_data(wh
->frame_control
)) {
1720 sta
= ieee80211_find_sta_by_ifaddr(hw
, wh
->addr1
,
1723 sta_info
= MWL8K_STA(sta
);
1724 BUG_ON(sta_info
== NULL
);
1725 rate_info
= le16_to_cpu(tx_desc
->rate_info
);
1726 /* If rate is < 6.5 Mpbs for an ht station
1727 * do not form an ampdu. If the station is a
1728 * legacy station (format = 0), do not form an
1731 if (RI_RATE_ID_MCS(rate_info
) < 1 ||
1732 RI_FORMAT(rate_info
) == 0) {
1733 sta_info
->is_ampdu_allowed
= false;
1735 sta_info
->is_ampdu_allowed
= true;
1741 ieee80211_tx_info_clear_status(info
);
1743 /* Rate control is happening in the firmware.
1744 * Ensure no tx rate is being reported.
1746 info
->status
.rates
[0].idx
= -1;
1747 info
->status
.rates
[0].count
= 1;
1749 if (MWL8K_TXD_SUCCESS(status
))
1750 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1752 ieee80211_tx_status_irqsafe(hw
, skb
);
1760 /* must be called only when the card's transmit is completely halted */
1761 static void mwl8k_txq_deinit(struct ieee80211_hw
*hw
, int index
)
1763 struct mwl8k_priv
*priv
= hw
->priv
;
1764 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1766 if (txq
->txd
== NULL
)
1769 mwl8k_txq_reclaim(hw
, index
, INT_MAX
, 1);
1774 pci_free_consistent(priv
->pdev
,
1775 MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
),
1776 txq
->txd
, txq
->txd_dma
);
1780 /* caller must hold priv->stream_lock when calling the stream functions */
1781 static struct mwl8k_ampdu_stream
*
1782 mwl8k_add_stream(struct ieee80211_hw
*hw
, struct ieee80211_sta
*sta
, u8 tid
)
1784 struct mwl8k_ampdu_stream
*stream
;
1785 struct mwl8k_priv
*priv
= hw
->priv
;
1788 for (i
= 0; i
< MWL8K_NUM_AMPDU_STREAMS
; i
++) {
1789 stream
= &priv
->ampdu
[i
];
1790 if (stream
->state
== AMPDU_NO_STREAM
) {
1792 stream
->state
= AMPDU_STREAM_NEW
;
1795 wiphy_debug(hw
->wiphy
, "Added a new stream for %pM %d",
1804 mwl8k_start_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1808 /* if the stream has already been started, don't start it again */
1809 if (stream
->state
!= AMPDU_STREAM_NEW
)
1811 ret
= ieee80211_start_tx_ba_session(stream
->sta
, stream
->tid
, 0);
1813 wiphy_debug(hw
->wiphy
, "Failed to start stream for %pM %d: "
1814 "%d\n", stream
->sta
->addr
, stream
->tid
, ret
);
1816 wiphy_debug(hw
->wiphy
, "Started stream for %pM %d\n",
1817 stream
->sta
->addr
, stream
->tid
);
1822 mwl8k_remove_stream(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
)
1824 wiphy_debug(hw
->wiphy
, "Remove stream for %pM %d\n", stream
->sta
->addr
,
1826 memset(stream
, 0, sizeof(*stream
));
1829 static struct mwl8k_ampdu_stream
*
1830 mwl8k_lookup_stream(struct ieee80211_hw
*hw
, u8
*addr
, u8 tid
)
1832 struct mwl8k_priv
*priv
= hw
->priv
;
1835 for (i
= 0; i
< MWL8K_NUM_AMPDU_STREAMS
; i
++) {
1836 struct mwl8k_ampdu_stream
*stream
;
1837 stream
= &priv
->ampdu
[i
];
1838 if (stream
->state
== AMPDU_NO_STREAM
)
1840 if (!memcmp(stream
->sta
->addr
, addr
, ETH_ALEN
) &&
1847 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1848 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta
*sta
, u8 tid
)
1850 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1851 struct tx_traffic_info
*tx_stats
;
1853 BUG_ON(tid
>= MWL8K_MAX_TID
);
1854 tx_stats
= &sta_info
->tx_stats
[tid
];
1856 return sta_info
->is_ampdu_allowed
&&
1857 tx_stats
->pkts
> MWL8K_AMPDU_PACKET_THRESHOLD
;
1860 static inline void mwl8k_tx_count_packet(struct ieee80211_sta
*sta
, u8 tid
)
1862 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
1863 struct tx_traffic_info
*tx_stats
;
1865 BUG_ON(tid
>= MWL8K_MAX_TID
);
1866 tx_stats
= &sta_info
->tx_stats
[tid
];
1868 if (tx_stats
->start_time
== 0)
1869 tx_stats
->start_time
= jiffies
;
1871 /* reset the packet count after each second elapses. If the number of
1872 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1873 * an ampdu stream to be started.
1875 if (jiffies
- tx_stats
->start_time
> HZ
) {
1877 tx_stats
->start_time
= 0;
1882 /* The hardware ampdu queues start from 5.
1883 * txpriorities for ampdu queues are
1884 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1885 * and queue 3 is lowest (queue 4 is reserved)
1890 mwl8k_txq_xmit(struct ieee80211_hw
*hw
,
1892 struct ieee80211_sta
*sta
,
1893 struct sk_buff
*skb
)
1895 struct mwl8k_priv
*priv
= hw
->priv
;
1896 struct ieee80211_tx_info
*tx_info
;
1897 struct mwl8k_vif
*mwl8k_vif
;
1898 struct ieee80211_hdr
*wh
;
1899 struct mwl8k_tx_queue
*txq
;
1900 struct mwl8k_tx_desc
*tx
;
1907 struct mwl8k_ampdu_stream
*stream
= NULL
;
1908 bool start_ba_session
= false;
1909 bool mgmtframe
= false;
1910 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)skb
->data
;
1911 bool eapol_frame
= false;
1913 wh
= (struct ieee80211_hdr
*)skb
->data
;
1914 if (ieee80211_is_data_qos(wh
->frame_control
))
1915 qos
= le16_to_cpu(*((__le16
*)ieee80211_get_qos_ctl(wh
)));
1919 if (skb
->protocol
== cpu_to_be16(ETH_P_PAE
))
1922 if (ieee80211_is_mgmt(wh
->frame_control
))
1926 mwl8k_encapsulate_tx_frame(priv
, skb
);
1928 mwl8k_add_dma_header(priv
, skb
, 0, 0);
1930 wh
= &((struct mwl8k_dma_data
*)skb
->data
)->wh
;
1932 tx_info
= IEEE80211_SKB_CB(skb
);
1933 mwl8k_vif
= MWL8K_VIF(tx_info
->control
.vif
);
1935 if (tx_info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
1936 wh
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
1937 wh
->seq_ctrl
|= cpu_to_le16(mwl8k_vif
->seqno
);
1938 mwl8k_vif
->seqno
+= 0x10;
1941 /* Setup firmware control bit fields for each frame type. */
1944 if (ieee80211_is_mgmt(wh
->frame_control
) ||
1945 ieee80211_is_ctl(wh
->frame_control
)) {
1947 qos
|= MWL8K_QOS_QLEN_UNSPEC
| MWL8K_QOS_EOSP
;
1948 } else if (ieee80211_is_data(wh
->frame_control
)) {
1950 if (is_multicast_ether_addr(wh
->addr1
))
1951 txstatus
|= MWL8K_TXD_STATUS_MULTICAST_TX
;
1953 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
1954 if (tx_info
->flags
& IEEE80211_TX_CTL_AMPDU
)
1955 qos
|= MWL8K_QOS_ACK_POLICY_BLOCKACK
;
1957 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
1960 /* Queue ADDBA request in the respective data queue. While setting up
1961 * the ampdu stream, mac80211 queues further packets for that
1962 * particular ra/tid pair. However, packets piled up in the hardware
1963 * for that ra/tid pair will still go out. ADDBA request and the
1964 * related data packets going out from different queues asynchronously
1965 * will cause a shift in the receiver window which might result in
1966 * ampdu packets getting dropped at the receiver after the stream has
1969 if (unlikely(ieee80211_is_action(wh
->frame_control
) &&
1970 mgmt
->u
.action
.category
== WLAN_CATEGORY_BACK
&&
1971 mgmt
->u
.action
.u
.addba_req
.action_code
== WLAN_ACTION_ADDBA_REQ
&&
1973 u16 capab
= le16_to_cpu(mgmt
->u
.action
.u
.addba_req
.capab
);
1974 tid
= (capab
& IEEE80211_ADDBA_PARAM_TID_MASK
) >> 2;
1975 index
= mwl8k_tid_queue_mapping(tid
);
1980 if (priv
->ap_fw
&& sta
&& sta
->ht_cap
.ht_supported
&& !eapol_frame
&&
1981 ieee80211_is_data_qos(wh
->frame_control
)) {
1983 mwl8k_tx_count_packet(sta
, tid
);
1984 spin_lock(&priv
->stream_lock
);
1985 stream
= mwl8k_lookup_stream(hw
, sta
->addr
, tid
);
1986 if (stream
!= NULL
) {
1987 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
1988 WARN_ON(!(qos
& MWL8K_QOS_ACK_POLICY_BLOCKACK
));
1989 txpriority
= (BA_QUEUE
+ stream
->idx
) %
1991 if (stream
->idx
<= 1)
1992 index
= stream
->idx
+
1993 MWL8K_TX_WMM_QUEUES
;
1995 } else if (stream
->state
== AMPDU_STREAM_NEW
) {
1996 /* We get here if the driver sends us packets
1997 * after we've initiated a stream, but before
1998 * our ampdu_action routine has been called
1999 * with IEEE80211_AMPDU_TX_START to get the SSN
2000 * for the ADDBA request. So this packet can
2001 * go out with no risk of sequence number
2002 * mismatch. No special handling is required.
2005 /* Drop packets that would go out after the
2006 * ADDBA request was sent but before the ADDBA
2007 * response is received. If we don't do this,
2008 * the recipient would probably receive it
2009 * after the ADDBA request with SSN 0. This
2010 * will cause the recipient's BA receive window
2011 * to shift, which would cause the subsequent
2012 * packets in the BA stream to be discarded.
2013 * mac80211 queues our packets for us in this
2014 * case, so this is really just a safety check.
2016 wiphy_warn(hw
->wiphy
,
2017 "Cannot send packet while ADDBA "
2018 "dialog is underway.\n");
2019 spin_unlock(&priv
->stream_lock
);
2024 /* Defer calling mwl8k_start_stream so that the current
2025 * skb can go out before the ADDBA request. This
2026 * prevents sequence number mismatch at the recepient
2027 * as described above.
2029 if (mwl8k_ampdu_allowed(sta
, tid
)) {
2030 stream
= mwl8k_add_stream(hw
, sta
, tid
);
2032 start_ba_session
= true;
2035 spin_unlock(&priv
->stream_lock
);
2037 qos
&= ~MWL8K_QOS_ACK_POLICY_MASK
;
2038 qos
|= MWL8K_QOS_ACK_POLICY_NORMAL
;
2041 dma
= pci_map_single(priv
->pdev
, skb
->data
,
2042 skb
->len
, PCI_DMA_TODEVICE
);
2044 if (pci_dma_mapping_error(priv
->pdev
, dma
)) {
2045 wiphy_debug(hw
->wiphy
,
2046 "failed to dma map skb, dropping TX frame.\n");
2047 if (start_ba_session
) {
2048 spin_lock(&priv
->stream_lock
);
2049 mwl8k_remove_stream(hw
, stream
);
2050 spin_unlock(&priv
->stream_lock
);
2056 spin_lock_bh(&priv
->tx_lock
);
2058 txq
= priv
->txq
+ index
;
2060 /* Mgmt frames that go out frequently are probe
2061 * responses. Other mgmt frames got out relatively
2062 * infrequently. Hence reserve 2 buffers so that
2063 * other mgmt frames do not get dropped due to an
2064 * already queued probe response in one of the
2068 if (txq
->len
>= MWL8K_TX_DESCS
- 2) {
2069 if (!mgmtframe
|| txq
->len
== MWL8K_TX_DESCS
) {
2070 if (start_ba_session
) {
2071 spin_lock(&priv
->stream_lock
);
2072 mwl8k_remove_stream(hw
, stream
);
2073 spin_unlock(&priv
->stream_lock
);
2075 mwl8k_tx_start(priv
);
2076 spin_unlock_bh(&priv
->tx_lock
);
2077 pci_unmap_single(priv
->pdev
, dma
, skb
->len
,
2084 BUG_ON(txq
->skb
[txq
->tail
] != NULL
);
2085 txq
->skb
[txq
->tail
] = skb
;
2087 tx
= txq
->txd
+ txq
->tail
;
2088 tx
->data_rate
= txdatarate
;
2089 tx
->tx_priority
= txpriority
;
2090 tx
->qos_control
= cpu_to_le16(qos
);
2091 tx
->pkt_phys_addr
= cpu_to_le32(dma
);
2092 tx
->pkt_len
= cpu_to_le16(skb
->len
);
2094 if (!priv
->ap_fw
&& sta
!= NULL
)
2095 tx
->peer_id
= MWL8K_STA(sta
)->peer_id
;
2099 if (priv
->ap_fw
&& ieee80211_is_data(wh
->frame_control
) && !eapol_frame
)
2100 tx
->timestamp
= cpu_to_le32(ioread32(priv
->regs
+
2101 MWL8K_HW_TIMER_REGISTER
));
2106 tx
->status
= cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
| txstatus
);
2109 priv
->pending_tx_pkts
++;
2112 if (txq
->tail
== MWL8K_TX_DESCS
)
2115 mwl8k_tx_start(priv
);
2117 spin_unlock_bh(&priv
->tx_lock
);
2119 /* Initiate the ampdu session here */
2120 if (start_ba_session
) {
2121 spin_lock(&priv
->stream_lock
);
2122 if (mwl8k_start_stream(hw
, stream
))
2123 mwl8k_remove_stream(hw
, stream
);
2124 spin_unlock(&priv
->stream_lock
);
2132 * We have the following requirements for issuing firmware commands:
2133 * - Some commands require that the packet transmit path is idle when
2134 * the command is issued. (For simplicity, we'll just quiesce the
2135 * transmit path for every command.)
2136 * - There are certain sequences of commands that need to be issued to
2137 * the hardware sequentially, with no other intervening commands.
2139 * This leads to an implementation of a "firmware lock" as a mutex that
2140 * can be taken recursively, and which is taken by both the low-level
2141 * command submission function (mwl8k_post_cmd) as well as any users of
2142 * that function that require issuing of an atomic sequence of commands,
2143 * and quiesces the transmit path whenever it's taken.
2145 static int mwl8k_fw_lock(struct ieee80211_hw
*hw
)
2147 struct mwl8k_priv
*priv
= hw
->priv
;
2149 if (priv
->fw_mutex_owner
!= current
) {
2152 mutex_lock(&priv
->fw_mutex
);
2153 ieee80211_stop_queues(hw
);
2155 rc
= mwl8k_tx_wait_empty(hw
);
2157 if (!priv
->hw_restart_in_progress
)
2158 ieee80211_wake_queues(hw
);
2160 mutex_unlock(&priv
->fw_mutex
);
2165 priv
->fw_mutex_owner
= current
;
2168 priv
->fw_mutex_depth
++;
2173 static void mwl8k_fw_unlock(struct ieee80211_hw
*hw
)
2175 struct mwl8k_priv
*priv
= hw
->priv
;
2177 if (!--priv
->fw_mutex_depth
) {
2178 if (!priv
->hw_restart_in_progress
)
2179 ieee80211_wake_queues(hw
);
2181 priv
->fw_mutex_owner
= NULL
;
2182 mutex_unlock(&priv
->fw_mutex
);
2186 static void mwl8k_enable_bsses(struct ieee80211_hw
*hw
, bool enable
,
2190 * Command processing.
2193 /* Timeout firmware commands after 10s */
2194 #define MWL8K_CMD_TIMEOUT_MS 10000
2196 static int mwl8k_post_cmd(struct ieee80211_hw
*hw
, struct mwl8k_cmd_pkt
*cmd
)
2198 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
2199 struct mwl8k_priv
*priv
= hw
->priv
;
2200 void __iomem
*regs
= priv
->regs
;
2201 dma_addr_t dma_addr
;
2202 unsigned int dma_size
;
2204 unsigned long timeout
= 0;
2208 wiphy_dbg(hw
->wiphy
, "Posting %s [%d]\n",
2209 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)), cmd
->macid
);
2211 /* Before posting firmware commands that could change the hardware
2212 * characteristics, make sure that all BSSes are stopped temporary.
2213 * Enable these stopped BSSes after completion of the commands
2216 rc
= mwl8k_fw_lock(hw
);
2220 if (priv
->ap_fw
&& priv
->running_bsses
) {
2221 switch (le16_to_cpu(cmd
->code
)) {
2222 case MWL8K_CMD_SET_RF_CHANNEL
:
2223 case MWL8K_CMD_RADIO_CONTROL
:
2224 case MWL8K_CMD_RF_TX_POWER
:
2225 case MWL8K_CMD_TX_POWER
:
2226 case MWL8K_CMD_RF_ANTENNA
:
2227 case MWL8K_CMD_RTS_THRESHOLD
:
2228 case MWL8K_CMD_MIMO_CONFIG
:
2229 bitmap
= priv
->running_bsses
;
2230 mwl8k_enable_bsses(hw
, false, bitmap
);
2235 cmd
->result
= (__force __le16
) 0xffff;
2236 dma_size
= le16_to_cpu(cmd
->length
);
2237 dma_addr
= pci_map_single(priv
->pdev
, cmd
, dma_size
,
2238 PCI_DMA_BIDIRECTIONAL
);
2239 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
2242 priv
->hostcmd_wait
= &cmd_wait
;
2243 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
2244 iowrite32(MWL8K_H2A_INT_DOORBELL
,
2245 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2246 iowrite32(MWL8K_H2A_INT_DUMMY
,
2247 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
2249 timeout
= wait_for_completion_timeout(&cmd_wait
,
2250 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS
));
2252 priv
->hostcmd_wait
= NULL
;
2255 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
2256 PCI_DMA_BIDIRECTIONAL
);
2259 wiphy_err(hw
->wiphy
, "Command %s timeout after %u ms\n",
2260 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2261 MWL8K_CMD_TIMEOUT_MS
);
2266 ms
= MWL8K_CMD_TIMEOUT_MS
- jiffies_to_msecs(timeout
);
2268 rc
= cmd
->result
? -EINVAL
: 0;
2270 wiphy_err(hw
->wiphy
, "Command %s error 0x%x\n",
2271 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
2272 le16_to_cpu(cmd
->result
));
2274 wiphy_notice(hw
->wiphy
, "Command %s took %d ms\n",
2275 mwl8k_cmd_name(cmd
->code
,
2281 mwl8k_enable_bsses(hw
, true, bitmap
);
2283 mwl8k_fw_unlock(hw
);
2288 static int mwl8k_post_pervif_cmd(struct ieee80211_hw
*hw
,
2289 struct ieee80211_vif
*vif
,
2290 struct mwl8k_cmd_pkt
*cmd
)
2293 cmd
->macid
= MWL8K_VIF(vif
)->macid
;
2294 return mwl8k_post_cmd(hw
, cmd
);
2298 * Setup code shared between STA and AP firmware images.
2300 static void mwl8k_setup_2ghz_band(struct ieee80211_hw
*hw
)
2302 struct mwl8k_priv
*priv
= hw
->priv
;
2304 BUILD_BUG_ON(sizeof(priv
->channels_24
) != sizeof(mwl8k_channels_24
));
2305 memcpy(priv
->channels_24
, mwl8k_channels_24
, sizeof(mwl8k_channels_24
));
2307 BUILD_BUG_ON(sizeof(priv
->rates_24
) != sizeof(mwl8k_rates_24
));
2308 memcpy(priv
->rates_24
, mwl8k_rates_24
, sizeof(mwl8k_rates_24
));
2310 priv
->band_24
.band
= IEEE80211_BAND_2GHZ
;
2311 priv
->band_24
.channels
= priv
->channels_24
;
2312 priv
->band_24
.n_channels
= ARRAY_SIZE(mwl8k_channels_24
);
2313 priv
->band_24
.bitrates
= priv
->rates_24
;
2314 priv
->band_24
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_24
);
2316 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band_24
;
2319 static void mwl8k_setup_5ghz_band(struct ieee80211_hw
*hw
)
2321 struct mwl8k_priv
*priv
= hw
->priv
;
2323 BUILD_BUG_ON(sizeof(priv
->channels_50
) != sizeof(mwl8k_channels_50
));
2324 memcpy(priv
->channels_50
, mwl8k_channels_50
, sizeof(mwl8k_channels_50
));
2326 BUILD_BUG_ON(sizeof(priv
->rates_50
) != sizeof(mwl8k_rates_50
));
2327 memcpy(priv
->rates_50
, mwl8k_rates_50
, sizeof(mwl8k_rates_50
));
2329 priv
->band_50
.band
= IEEE80211_BAND_5GHZ
;
2330 priv
->band_50
.channels
= priv
->channels_50
;
2331 priv
->band_50
.n_channels
= ARRAY_SIZE(mwl8k_channels_50
);
2332 priv
->band_50
.bitrates
= priv
->rates_50
;
2333 priv
->band_50
.n_bitrates
= ARRAY_SIZE(mwl8k_rates_50
);
2335 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->band_50
;
2339 * CMD_GET_HW_SPEC (STA version).
2341 struct mwl8k_cmd_get_hw_spec_sta
{
2342 struct mwl8k_cmd_pkt header
;
2344 __u8 host_interface
;
2346 __u8 perm_addr
[ETH_ALEN
];
2351 __u8 mcs_bitmap
[16];
2352 __le32 rx_queue_ptr
;
2353 __le32 num_tx_queues
;
2354 __le32 tx_queue_ptrs
[MWL8K_TX_WMM_QUEUES
];
2356 __le32 num_tx_desc_per_queue
;
2360 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2361 #define MWL8K_CAP_GREENFIELD 0x08000000
2362 #define MWL8K_CAP_AMPDU 0x04000000
2363 #define MWL8K_CAP_RX_STBC 0x01000000
2364 #define MWL8K_CAP_TX_STBC 0x00800000
2365 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2366 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2367 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2368 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2369 #define MWL8K_CAP_DELAY_BA 0x00003000
2370 #define MWL8K_CAP_MIMO 0x00000200
2371 #define MWL8K_CAP_40MHZ 0x00000100
2372 #define MWL8K_CAP_BAND_MASK 0x00000007
2373 #define MWL8K_CAP_5GHZ 0x00000004
2374 #define MWL8K_CAP_2GHZ4 0x00000001
2377 mwl8k_set_ht_caps(struct ieee80211_hw
*hw
,
2378 struct ieee80211_supported_band
*band
, u32 cap
)
2383 band
->ht_cap
.ht_supported
= 1;
2385 if (cap
& MWL8K_CAP_MAX_AMSDU
)
2386 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
2387 if (cap
& MWL8K_CAP_GREENFIELD
)
2388 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_GRN_FLD
;
2389 if (cap
& MWL8K_CAP_AMPDU
) {
2390 hw
->flags
|= IEEE80211_HW_AMPDU_AGGREGATION
;
2391 band
->ht_cap
.ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
;
2392 band
->ht_cap
.ampdu_density
= IEEE80211_HT_MPDU_DENSITY_NONE
;
2394 if (cap
& MWL8K_CAP_RX_STBC
)
2395 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_RX_STBC
;
2396 if (cap
& MWL8K_CAP_TX_STBC
)
2397 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_TX_STBC
;
2398 if (cap
& MWL8K_CAP_SHORTGI_40MHZ
)
2399 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_40
;
2400 if (cap
& MWL8K_CAP_SHORTGI_20MHZ
)
2401 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SGI_20
;
2402 if (cap
& MWL8K_CAP_DELAY_BA
)
2403 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_DELAY_BA
;
2404 if (cap
& MWL8K_CAP_40MHZ
)
2405 band
->ht_cap
.cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
2407 rx_streams
= hweight32(cap
& MWL8K_CAP_RX_ANTENNA_MASK
);
2408 tx_streams
= hweight32(cap
& MWL8K_CAP_TX_ANTENNA_MASK
);
2410 band
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2411 if (rx_streams
>= 2)
2412 band
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2413 if (rx_streams
>= 3)
2414 band
->ht_cap
.mcs
.rx_mask
[2] = 0xff;
2415 band
->ht_cap
.mcs
.rx_mask
[4] = 0x01;
2416 band
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2418 if (rx_streams
!= tx_streams
) {
2419 band
->ht_cap
.mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
2420 band
->ht_cap
.mcs
.tx_params
|= (tx_streams
- 1) <<
2421 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2426 mwl8k_set_caps(struct ieee80211_hw
*hw
, u32 caps
)
2428 struct mwl8k_priv
*priv
= hw
->priv
;
2433 if ((caps
& MWL8K_CAP_2GHZ4
) || !(caps
& MWL8K_CAP_BAND_MASK
)) {
2434 mwl8k_setup_2ghz_band(hw
);
2435 if (caps
& MWL8K_CAP_MIMO
)
2436 mwl8k_set_ht_caps(hw
, &priv
->band_24
, caps
);
2439 if (caps
& MWL8K_CAP_5GHZ
) {
2440 mwl8k_setup_5ghz_band(hw
);
2441 if (caps
& MWL8K_CAP_MIMO
)
2442 mwl8k_set_ht_caps(hw
, &priv
->band_50
, caps
);
2448 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw
*hw
)
2450 struct mwl8k_priv
*priv
= hw
->priv
;
2451 struct mwl8k_cmd_get_hw_spec_sta
*cmd
;
2455 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2459 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2460 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2462 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2463 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2464 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2465 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2466 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
2467 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[i
].txd_dma
);
2468 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2469 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2471 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2474 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2475 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2476 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2477 priv
->hw_rev
= cmd
->hw_rev
;
2478 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2479 priv
->ap_macids_supported
= 0x00000000;
2480 priv
->sta_macids_supported
= 0x00000001;
2488 * CMD_GET_HW_SPEC (AP version).
2490 struct mwl8k_cmd_get_hw_spec_ap
{
2491 struct mwl8k_cmd_pkt header
;
2493 __u8 host_interface
;
2496 __u8 perm_addr
[ETH_ALEN
];
2507 __le32 fw_api_version
;
2509 __le32 num_of_ampdu_queues
;
2510 __le32 wcbbase_ampdu
[MWL8K_MAX_AMPDU_QUEUES
];
2513 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw
*hw
)
2515 struct mwl8k_priv
*priv
= hw
->priv
;
2516 struct mwl8k_cmd_get_hw_spec_ap
*cmd
;
2520 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2524 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
2525 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2527 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
2528 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2530 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2535 api_version
= le32_to_cpu(cmd
->fw_api_version
);
2536 if (priv
->device_info
->fw_api_ap
!= api_version
) {
2537 printk(KERN_ERR
"%s: Unsupported fw API version for %s."
2538 " Expected %d got %d.\n", MWL8K_NAME
,
2539 priv
->device_info
->part_name
,
2540 priv
->device_info
->fw_api_ap
,
2545 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
2546 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
2547 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
2548 priv
->hw_rev
= cmd
->hw_rev
;
2549 mwl8k_set_caps(hw
, le32_to_cpu(cmd
->caps
));
2550 priv
->ap_macids_supported
= 0x000000ff;
2551 priv
->sta_macids_supported
= 0x00000100;
2552 priv
->num_ampdu_queues
= le32_to_cpu(cmd
->num_of_ampdu_queues
);
2553 if (priv
->num_ampdu_queues
> MWL8K_MAX_AMPDU_QUEUES
) {
2554 wiphy_warn(hw
->wiphy
, "fw reported %d ampdu queues"
2555 " but we only support %d.\n",
2556 priv
->num_ampdu_queues
,
2557 MWL8K_MAX_AMPDU_QUEUES
);
2558 priv
->num_ampdu_queues
= MWL8K_MAX_AMPDU_QUEUES
;
2560 off
= le32_to_cpu(cmd
->rxwrptr
) & 0xffff;
2561 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2563 off
= le32_to_cpu(cmd
->rxrdptr
) & 0xffff;
2564 iowrite32(priv
->rxq
[0].rxd_dma
, priv
->sram
+ off
);
2566 priv
->txq_offset
[0] = le32_to_cpu(cmd
->wcbbase0
) & 0xffff;
2567 priv
->txq_offset
[1] = le32_to_cpu(cmd
->wcbbase1
) & 0xffff;
2568 priv
->txq_offset
[2] = le32_to_cpu(cmd
->wcbbase2
) & 0xffff;
2569 priv
->txq_offset
[3] = le32_to_cpu(cmd
->wcbbase3
) & 0xffff;
2571 for (i
= 0; i
< priv
->num_ampdu_queues
; i
++)
2572 priv
->txq_offset
[i
+ MWL8K_TX_WMM_QUEUES
] =
2573 le32_to_cpu(cmd
->wcbbase_ampdu
[i
]) & 0xffff;
2584 struct mwl8k_cmd_set_hw_spec
{
2585 struct mwl8k_cmd_pkt header
;
2587 __u8 host_interface
;
2589 __u8 perm_addr
[ETH_ALEN
];
2594 __le32 rx_queue_ptr
;
2595 __le32 num_tx_queues
;
2596 __le32 tx_queue_ptrs
[MWL8K_MAX_TX_QUEUES
];
2598 __le32 num_tx_desc_per_queue
;
2602 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2603 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2604 * the packets that are queued for more than 500ms, will be dropped in the
2605 * hardware. This helps minimizing the issues caused due to head-of-line
2606 * blocking where a slow client can hog the bandwidth and affect traffic to a
2609 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2610 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2611 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2612 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2613 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2615 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw
*hw
)
2617 struct mwl8k_priv
*priv
= hw
->priv
;
2618 struct mwl8k_cmd_set_hw_spec
*cmd
;
2622 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2626 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_HW_SPEC
);
2627 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2629 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
2630 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rxd_dma
);
2631 cmd
->num_tx_queues
= cpu_to_le32(mwl8k_tx_queues(priv
));
2634 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2635 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2636 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2637 * priority is interpreted the right way in firmware.
2639 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
2640 int j
= mwl8k_tx_queues(priv
) - 1 - i
;
2641 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[j
].txd_dma
);
2644 cmd
->flags
= cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT
|
2645 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP
|
2646 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON
|
2647 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY
|
2648 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR
);
2649 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
2650 cmd
->total_rxd
= cpu_to_le32(MWL8K_RX_DESCS
);
2652 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2659 * CMD_MAC_MULTICAST_ADR.
2661 struct mwl8k_cmd_mac_multicast_adr
{
2662 struct mwl8k_cmd_pkt header
;
2665 __u8 addr
[0][ETH_ALEN
];
2668 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2669 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2670 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2671 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2673 static struct mwl8k_cmd_pkt
*
2674 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw
*hw
, int allmulti
,
2675 struct netdev_hw_addr_list
*mc_list
)
2677 struct mwl8k_priv
*priv
= hw
->priv
;
2678 struct mwl8k_cmd_mac_multicast_adr
*cmd
;
2683 mc_count
= netdev_hw_addr_list_count(mc_list
);
2685 if (allmulti
|| mc_count
> priv
->num_mcaddrs
) {
2690 size
= sizeof(*cmd
) + mc_count
* ETH_ALEN
;
2692 cmd
= kzalloc(size
, GFP_ATOMIC
);
2696 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR
);
2697 cmd
->header
.length
= cpu_to_le16(size
);
2698 cmd
->action
= cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED
|
2699 MWL8K_ENABLE_RX_BROADCAST
);
2702 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST
);
2703 } else if (mc_count
) {
2704 struct netdev_hw_addr
*ha
;
2707 cmd
->action
|= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST
);
2708 cmd
->numaddr
= cpu_to_le16(mc_count
);
2709 netdev_hw_addr_list_for_each(ha
, mc_list
) {
2710 memcpy(cmd
->addr
[i
], ha
->addr
, ETH_ALEN
);
2714 return &cmd
->header
;
2720 struct mwl8k_cmd_get_stat
{
2721 struct mwl8k_cmd_pkt header
;
2725 #define MWL8K_STAT_ACK_FAILURE 9
2726 #define MWL8K_STAT_RTS_FAILURE 12
2727 #define MWL8K_STAT_FCS_ERROR 24
2728 #define MWL8K_STAT_RTS_SUCCESS 11
2730 static int mwl8k_cmd_get_stat(struct ieee80211_hw
*hw
,
2731 struct ieee80211_low_level_stats
*stats
)
2733 struct mwl8k_cmd_get_stat
*cmd
;
2736 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2740 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_STAT
);
2741 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2743 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2745 stats
->dot11ACKFailureCount
=
2746 le32_to_cpu(cmd
->stats
[MWL8K_STAT_ACK_FAILURE
]);
2747 stats
->dot11RTSFailureCount
=
2748 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_FAILURE
]);
2749 stats
->dot11FCSErrorCount
=
2750 le32_to_cpu(cmd
->stats
[MWL8K_STAT_FCS_ERROR
]);
2751 stats
->dot11RTSSuccessCount
=
2752 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_SUCCESS
]);
2760 * CMD_RADIO_CONTROL.
2762 struct mwl8k_cmd_radio_control
{
2763 struct mwl8k_cmd_pkt header
;
2770 mwl8k_cmd_radio_control(struct ieee80211_hw
*hw
, bool enable
, bool force
)
2772 struct mwl8k_priv
*priv
= hw
->priv
;
2773 struct mwl8k_cmd_radio_control
*cmd
;
2776 if (enable
== priv
->radio_on
&& !force
)
2779 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2783 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RADIO_CONTROL
);
2784 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2785 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2786 cmd
->control
= cpu_to_le16(priv
->radio_short_preamble
? 3 : 1);
2787 cmd
->radio_on
= cpu_to_le16(enable
? 0x0001 : 0x0000);
2789 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2793 priv
->radio_on
= enable
;
2798 static int mwl8k_cmd_radio_disable(struct ieee80211_hw
*hw
)
2800 return mwl8k_cmd_radio_control(hw
, 0, 0);
2803 static int mwl8k_cmd_radio_enable(struct ieee80211_hw
*hw
)
2805 return mwl8k_cmd_radio_control(hw
, 1, 0);
2809 mwl8k_set_radio_preamble(struct ieee80211_hw
*hw
, bool short_preamble
)
2811 struct mwl8k_priv
*priv
= hw
->priv
;
2813 priv
->radio_short_preamble
= short_preamble
;
2815 return mwl8k_cmd_radio_control(hw
, 1, 1);
2821 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2823 struct mwl8k_cmd_rf_tx_power
{
2824 struct mwl8k_cmd_pkt header
;
2826 __le16 support_level
;
2827 __le16 current_level
;
2829 __le16 power_level_list
[MWL8K_RF_TX_POWER_LEVEL_TOTAL
];
2832 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw
*hw
, int dBm
)
2834 struct mwl8k_cmd_rf_tx_power
*cmd
;
2837 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2841 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_TX_POWER
);
2842 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2843 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2844 cmd
->support_level
= cpu_to_le16(dBm
);
2846 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2855 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2857 struct mwl8k_cmd_tx_power
{
2858 struct mwl8k_cmd_pkt header
;
2864 __le16 power_level_list
[MWL8K_TX_POWER_LEVEL_TOTAL
];
2867 static int mwl8k_cmd_tx_power(struct ieee80211_hw
*hw
,
2868 struct ieee80211_conf
*conf
,
2871 struct ieee80211_channel
*channel
= conf
->chandef
.chan
;
2872 enum nl80211_channel_type channel_type
=
2873 cfg80211_get_chandef_type(&conf
->chandef
);
2874 struct mwl8k_cmd_tx_power
*cmd
;
2878 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2882 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_TX_POWER
);
2883 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2884 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET_LIST
);
2886 if (channel
->band
== IEEE80211_BAND_2GHZ
)
2887 cmd
->band
= cpu_to_le16(0x1);
2888 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
2889 cmd
->band
= cpu_to_le16(0x4);
2891 cmd
->channel
= cpu_to_le16(channel
->hw_value
);
2893 if (channel_type
== NL80211_CHAN_NO_HT
||
2894 channel_type
== NL80211_CHAN_HT20
) {
2895 cmd
->bw
= cpu_to_le16(0x2);
2897 cmd
->bw
= cpu_to_le16(0x4);
2898 if (channel_type
== NL80211_CHAN_HT40MINUS
)
2899 cmd
->sub_ch
= cpu_to_le16(0x3);
2900 else if (channel_type
== NL80211_CHAN_HT40PLUS
)
2901 cmd
->sub_ch
= cpu_to_le16(0x1);
2904 for (i
= 0; i
< MWL8K_TX_POWER_LEVEL_TOTAL
; i
++)
2905 cmd
->power_level_list
[i
] = cpu_to_le16(pwr
);
2907 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2916 struct mwl8k_cmd_rf_antenna
{
2917 struct mwl8k_cmd_pkt header
;
2922 #define MWL8K_RF_ANTENNA_RX 1
2923 #define MWL8K_RF_ANTENNA_TX 2
2926 mwl8k_cmd_rf_antenna(struct ieee80211_hw
*hw
, int antenna
, int mask
)
2928 struct mwl8k_cmd_rf_antenna
*cmd
;
2931 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2935 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_ANTENNA
);
2936 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2937 cmd
->antenna
= cpu_to_le16(antenna
);
2938 cmd
->mode
= cpu_to_le16(mask
);
2940 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2949 struct mwl8k_cmd_set_beacon
{
2950 struct mwl8k_cmd_pkt header
;
2955 static int mwl8k_cmd_set_beacon(struct ieee80211_hw
*hw
,
2956 struct ieee80211_vif
*vif
, u8
*beacon
, int len
)
2958 struct mwl8k_cmd_set_beacon
*cmd
;
2961 cmd
= kzalloc(sizeof(*cmd
) + len
, GFP_KERNEL
);
2965 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_BEACON
);
2966 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
) + len
);
2967 cmd
->beacon_len
= cpu_to_le16(len
);
2968 memcpy(cmd
->beacon
, beacon
, len
);
2970 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
2979 struct mwl8k_cmd_set_pre_scan
{
2980 struct mwl8k_cmd_pkt header
;
2983 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw
*hw
)
2985 struct mwl8k_cmd_set_pre_scan
*cmd
;
2988 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2992 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN
);
2993 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2995 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3002 * CMD_BBP_REG_ACCESS.
3004 struct mwl8k_cmd_bbp_reg_access
{
3005 struct mwl8k_cmd_pkt header
;
3013 mwl8k_cmd_bbp_reg_access(struct ieee80211_hw
*hw
,
3018 struct mwl8k_cmd_bbp_reg_access
*cmd
;
3021 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3025 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BBP_REG_ACCESS
);
3026 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3027 cmd
->action
= cpu_to_le16(action
);
3028 cmd
->offset
= cpu_to_le16(offset
);
3030 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3033 *value
= cmd
->value
;
3043 * CMD_SET_POST_SCAN.
3045 struct mwl8k_cmd_set_post_scan
{
3046 struct mwl8k_cmd_pkt header
;
3048 __u8 bssid
[ETH_ALEN
];
3052 mwl8k_cmd_set_post_scan(struct ieee80211_hw
*hw
, const __u8
*mac
)
3054 struct mwl8k_cmd_set_post_scan
*cmd
;
3057 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3061 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_POST_SCAN
);
3062 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3064 memcpy(cmd
->bssid
, mac
, ETH_ALEN
);
3066 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3072 static int freq_to_idx(struct mwl8k_priv
*priv
, int freq
)
3074 struct ieee80211_supported_band
*sband
;
3075 int band
, ch
, idx
= 0;
3077 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
3078 sband
= priv
->hw
->wiphy
->bands
[band
];
3082 for (ch
= 0; ch
< sband
->n_channels
; ch
++, idx
++)
3083 if (sband
->channels
[ch
].center_freq
== freq
)
3091 static void mwl8k_update_survey(struct mwl8k_priv
*priv
,
3092 struct ieee80211_channel
*channel
)
3094 u32 cca_cnt
, rx_rdy
;
3096 struct survey_info
*survey
;
3098 idx
= freq_to_idx(priv
, priv
->acs_chan
->center_freq
);
3099 if (idx
>= MWL8K_NUM_CHANS
) {
3100 wiphy_err(priv
->hw
->wiphy
, "Failed to update survey\n");
3104 survey
= &priv
->survey
[idx
];
3106 cca_cnt
= ioread32(priv
->regs
+ NOK_CCA_CNT_REG
);
3107 cca_cnt
/= 1000; /* uSecs to mSecs */
3108 survey
->channel_time_busy
= (u64
) cca_cnt
;
3110 rx_rdy
= ioread32(priv
->regs
+ BBU_RXRDY_CNT_REG
);
3111 rx_rdy
/= 1000; /* uSecs to mSecs */
3112 survey
->channel_time_rx
= (u64
) rx_rdy
;
3114 priv
->channel_time
= jiffies
- priv
->channel_time
;
3115 survey
->channel_time
= jiffies_to_msecs(priv
->channel_time
);
3117 survey
->channel
= channel
;
3119 mwl8k_cmd_bbp_reg_access(priv
->hw
, 0, BBU_AVG_NOISE_VAL
, &nf
);
3121 /* Make sure sign is negative else ACS at hostapd fails */
3122 survey
->noise
= nf
* -1;
3124 survey
->filled
= SURVEY_INFO_NOISE_DBM
|
3125 SURVEY_INFO_CHANNEL_TIME
|
3126 SURVEY_INFO_CHANNEL_TIME_BUSY
|
3127 SURVEY_INFO_CHANNEL_TIME_RX
;
3131 * CMD_SET_RF_CHANNEL.
3133 struct mwl8k_cmd_set_rf_channel
{
3134 struct mwl8k_cmd_pkt header
;
3136 __u8 current_channel
;
3137 __le32 channel_flags
;
3140 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw
*hw
,
3141 struct ieee80211_conf
*conf
)
3143 struct ieee80211_channel
*channel
= conf
->chandef
.chan
;
3144 enum nl80211_channel_type channel_type
=
3145 cfg80211_get_chandef_type(&conf
->chandef
);
3146 struct mwl8k_cmd_set_rf_channel
*cmd
;
3147 struct mwl8k_priv
*priv
= hw
->priv
;
3150 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3154 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL
);
3155 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3156 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3157 cmd
->current_channel
= channel
->hw_value
;
3159 if (channel
->band
== IEEE80211_BAND_2GHZ
)
3160 cmd
->channel_flags
|= cpu_to_le32(0x00000001);
3161 else if (channel
->band
== IEEE80211_BAND_5GHZ
)
3162 cmd
->channel_flags
|= cpu_to_le32(0x00000004);
3164 if (!priv
->sw_scan_start
) {
3165 if (channel_type
== NL80211_CHAN_NO_HT
||
3166 channel_type
== NL80211_CHAN_HT20
)
3167 cmd
->channel_flags
|= cpu_to_le32(0x00000080);
3168 else if (channel_type
== NL80211_CHAN_HT40MINUS
)
3169 cmd
->channel_flags
|= cpu_to_le32(0x000001900);
3170 else if (channel_type
== NL80211_CHAN_HT40PLUS
)
3171 cmd
->channel_flags
|= cpu_to_le32(0x000000900);
3173 cmd
->channel_flags
|= cpu_to_le32(0x00000080);
3176 if (priv
->sw_scan_start
) {
3177 /* Store current channel stats
3178 * before switching to newer one.
3179 * This will be processed only for AP fw.
3181 if (priv
->channel_time
!= 0)
3182 mwl8k_update_survey(priv
, priv
->acs_chan
);
3184 priv
->channel_time
= jiffies
;
3185 priv
->acs_chan
= channel
;
3188 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3197 #define MWL8K_FRAME_PROT_DISABLED 0x00
3198 #define MWL8K_FRAME_PROT_11G 0x07
3199 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3200 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3202 struct mwl8k_cmd_update_set_aid
{
3203 struct mwl8k_cmd_pkt header
;
3206 /* AP's MAC address (BSSID) */
3207 __u8 bssid
[ETH_ALEN
];
3208 __le16 protection_mode
;
3209 __u8 supp_rates
[14];
3212 static void legacy_rate_mask_to_array(u8
*rates
, u32 mask
)
3218 * Clear nonstandard rate 4.
3222 for (i
= 0, j
= 0; i
< 13; i
++) {
3223 if (mask
& (1 << i
))
3224 rates
[j
++] = mwl8k_rates_24
[i
].hw_value
;
3229 mwl8k_cmd_set_aid(struct ieee80211_hw
*hw
,
3230 struct ieee80211_vif
*vif
, u32 legacy_rate_mask
)
3232 struct mwl8k_cmd_update_set_aid
*cmd
;
3236 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3240 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_AID
);
3241 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3242 cmd
->aid
= cpu_to_le16(vif
->bss_conf
.aid
);
3243 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
3245 if (vif
->bss_conf
.use_cts_prot
) {
3246 prot_mode
= MWL8K_FRAME_PROT_11G
;
3248 switch (vif
->bss_conf
.ht_operation_mode
&
3249 IEEE80211_HT_OP_MODE_PROTECTION
) {
3250 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
3251 prot_mode
= MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY
;
3253 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
3254 prot_mode
= MWL8K_FRAME_PROT_11N_HT_ALL
;
3257 prot_mode
= MWL8K_FRAME_PROT_DISABLED
;
3261 cmd
->protection_mode
= cpu_to_le16(prot_mode
);
3263 legacy_rate_mask_to_array(cmd
->supp_rates
, legacy_rate_mask
);
3265 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3274 struct mwl8k_cmd_set_rate
{
3275 struct mwl8k_cmd_pkt header
;
3276 __u8 legacy_rates
[14];
3278 /* Bitmap for supported MCS codes. */
3284 mwl8k_cmd_set_rate(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
3285 u32 legacy_rate_mask
, u8
*mcs_rates
)
3287 struct mwl8k_cmd_set_rate
*cmd
;
3290 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3294 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATE
);
3295 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3296 legacy_rate_mask_to_array(cmd
->legacy_rates
, legacy_rate_mask
);
3297 memcpy(cmd
->mcs_set
, mcs_rates
, 16);
3299 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3306 * CMD_FINALIZE_JOIN.
3308 #define MWL8K_FJ_BEACON_MAXLEN 128
3310 struct mwl8k_cmd_finalize_join
{
3311 struct mwl8k_cmd_pkt header
;
3312 __le32 sleep_interval
; /* Number of beacon periods to sleep */
3313 __u8 beacon_data
[MWL8K_FJ_BEACON_MAXLEN
];
3316 static int mwl8k_cmd_finalize_join(struct ieee80211_hw
*hw
, void *frame
,
3317 int framelen
, int dtim
)
3319 struct mwl8k_cmd_finalize_join
*cmd
;
3320 struct ieee80211_mgmt
*payload
= frame
;
3324 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3328 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN
);
3329 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3330 cmd
->sleep_interval
= cpu_to_le32(dtim
? dtim
: 1);
3332 payload_len
= framelen
- ieee80211_hdrlen(payload
->frame_control
);
3333 if (payload_len
< 0)
3335 else if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
3336 payload_len
= MWL8K_FJ_BEACON_MAXLEN
;
3338 memcpy(cmd
->beacon_data
, &payload
->u
.beacon
, payload_len
);
3340 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3347 * CMD_SET_RTS_THRESHOLD.
3349 struct mwl8k_cmd_set_rts_threshold
{
3350 struct mwl8k_cmd_pkt header
;
3356 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw
*hw
, int rts_thresh
)
3358 struct mwl8k_cmd_set_rts_threshold
*cmd
;
3361 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3365 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD
);
3366 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3367 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3368 cmd
->threshold
= cpu_to_le16(rts_thresh
);
3370 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3379 struct mwl8k_cmd_set_slot
{
3380 struct mwl8k_cmd_pkt header
;
3385 static int mwl8k_cmd_set_slot(struct ieee80211_hw
*hw
, bool short_slot_time
)
3387 struct mwl8k_cmd_set_slot
*cmd
;
3390 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3394 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_SLOT
);
3395 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3396 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3397 cmd
->short_slot
= short_slot_time
;
3399 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3406 * CMD_SET_EDCA_PARAMS.
3408 struct mwl8k_cmd_set_edca_params
{
3409 struct mwl8k_cmd_pkt header
;
3411 /* See MWL8K_SET_EDCA_XXX below */
3414 /* TX opportunity in units of 32 us */
3419 /* Log exponent of max contention period: 0...15 */
3422 /* Log exponent of min contention period: 0...15 */
3425 /* Adaptive interframe spacing in units of 32us */
3428 /* TX queue to configure */
3432 /* Log exponent of max contention period: 0...15 */
3435 /* Log exponent of min contention period: 0...15 */
3438 /* Adaptive interframe spacing in units of 32us */
3441 /* TX queue to configure */
3447 #define MWL8K_SET_EDCA_CW 0x01
3448 #define MWL8K_SET_EDCA_TXOP 0x02
3449 #define MWL8K_SET_EDCA_AIFS 0x04
3451 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3452 MWL8K_SET_EDCA_TXOP | \
3453 MWL8K_SET_EDCA_AIFS)
3456 mwl8k_cmd_set_edca_params(struct ieee80211_hw
*hw
, __u8 qnum
,
3457 __u16 cw_min
, __u16 cw_max
,
3458 __u8 aifs
, __u16 txop
)
3460 struct mwl8k_priv
*priv
= hw
->priv
;
3461 struct mwl8k_cmd_set_edca_params
*cmd
;
3464 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3468 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS
);
3469 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3470 cmd
->action
= cpu_to_le16(MWL8K_SET_EDCA_ALL
);
3471 cmd
->txop
= cpu_to_le16(txop
);
3473 cmd
->ap
.log_cw_max
= cpu_to_le32(ilog2(cw_max
+ 1));
3474 cmd
->ap
.log_cw_min
= cpu_to_le32(ilog2(cw_min
+ 1));
3475 cmd
->ap
.aifs
= aifs
;
3478 cmd
->sta
.log_cw_max
= (u8
)ilog2(cw_max
+ 1);
3479 cmd
->sta
.log_cw_min
= (u8
)ilog2(cw_min
+ 1);
3480 cmd
->sta
.aifs
= aifs
;
3481 cmd
->sta
.txq
= qnum
;
3484 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3493 struct mwl8k_cmd_set_wmm_mode
{
3494 struct mwl8k_cmd_pkt header
;
3498 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw
*hw
, bool enable
)
3500 struct mwl8k_priv
*priv
= hw
->priv
;
3501 struct mwl8k_cmd_set_wmm_mode
*cmd
;
3504 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3508 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_WMM_MODE
);
3509 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3510 cmd
->action
= cpu_to_le16(!!enable
);
3512 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3516 priv
->wmm_enabled
= enable
;
3524 struct mwl8k_cmd_mimo_config
{
3525 struct mwl8k_cmd_pkt header
;
3527 __u8 rx_antenna_map
;
3528 __u8 tx_antenna_map
;
3531 static int mwl8k_cmd_mimo_config(struct ieee80211_hw
*hw
, __u8 rx
, __u8 tx
)
3533 struct mwl8k_cmd_mimo_config
*cmd
;
3536 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3540 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MIMO_CONFIG
);
3541 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3542 cmd
->action
= cpu_to_le32((u32
)MWL8K_CMD_SET
);
3543 cmd
->rx_antenna_map
= rx
;
3544 cmd
->tx_antenna_map
= tx
;
3546 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3553 * CMD_USE_FIXED_RATE (STA version).
3555 struct mwl8k_cmd_use_fixed_rate_sta
{
3556 struct mwl8k_cmd_pkt header
;
3558 __le32 allow_rate_drop
;
3562 __le32 enable_retry
;
3571 #define MWL8K_USE_AUTO_RATE 0x0002
3572 #define MWL8K_UCAST_RATE 0
3574 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw
*hw
)
3576 struct mwl8k_cmd_use_fixed_rate_sta
*cmd
;
3579 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3583 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3584 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3585 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3586 cmd
->rate_type
= cpu_to_le32(MWL8K_UCAST_RATE
);
3588 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3595 * CMD_USE_FIXED_RATE (AP version).
3597 struct mwl8k_cmd_use_fixed_rate_ap
{
3598 struct mwl8k_cmd_pkt header
;
3600 __le32 allow_rate_drop
;
3602 struct mwl8k_rate_entry_ap
{
3604 __le32 enable_retry
;
3609 u8 multicast_rate_type
;
3614 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw
*hw
, int mcast
, int mgmt
)
3616 struct mwl8k_cmd_use_fixed_rate_ap
*cmd
;
3619 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3623 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
3624 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3625 cmd
->action
= cpu_to_le32(MWL8K_USE_AUTO_RATE
);
3626 cmd
->multicast_rate
= mcast
;
3627 cmd
->management_rate
= mgmt
;
3629 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3636 * CMD_ENABLE_SNIFFER.
3638 struct mwl8k_cmd_enable_sniffer
{
3639 struct mwl8k_cmd_pkt header
;
3643 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw
*hw
, bool enable
)
3645 struct mwl8k_cmd_enable_sniffer
*cmd
;
3648 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3652 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER
);
3653 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3654 cmd
->action
= cpu_to_le32(!!enable
);
3656 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3662 struct mwl8k_cmd_update_mac_addr
{
3663 struct mwl8k_cmd_pkt header
;
3667 __u8 mac_addr
[ETH_ALEN
];
3669 __u8 mac_addr
[ETH_ALEN
];
3673 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3674 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3675 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3676 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3678 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw
*hw
,
3679 struct ieee80211_vif
*vif
, u8
*mac
, bool set
)
3681 struct mwl8k_priv
*priv
= hw
->priv
;
3682 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3683 struct mwl8k_cmd_update_mac_addr
*cmd
;
3687 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3688 if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3689 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->sta_macids_supported
))
3691 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3693 mac_type
= MWL8K_MAC_TYPE_PRIMARY_CLIENT
;
3695 mac_type
= MWL8K_MAC_TYPE_SECONDARY_CLIENT
;
3696 } else if (vif
!= NULL
&& vif
->type
== NL80211_IFTYPE_AP
) {
3697 if (mwl8k_vif
->macid
+ 1 == ffs(priv
->ap_macids_supported
))
3698 mac_type
= MWL8K_MAC_TYPE_PRIMARY_AP
;
3700 mac_type
= MWL8K_MAC_TYPE_SECONDARY_AP
;
3703 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3708 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR
);
3710 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR
);
3712 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3714 cmd
->mbss
.mac_type
= cpu_to_le16(mac_type
);
3715 memcpy(cmd
->mbss
.mac_addr
, mac
, ETH_ALEN
);
3717 memcpy(cmd
->mac_addr
, mac
, ETH_ALEN
);
3720 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3727 * MWL8K_CMD_SET_MAC_ADDR.
3729 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw
*hw
,
3730 struct ieee80211_vif
*vif
, u8
*mac
)
3732 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, true);
3736 * MWL8K_CMD_DEL_MAC_ADDR.
3738 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw
*hw
,
3739 struct ieee80211_vif
*vif
, u8
*mac
)
3741 return mwl8k_cmd_update_mac_addr(hw
, vif
, mac
, false);
3745 * CMD_SET_RATEADAPT_MODE.
3747 struct mwl8k_cmd_set_rate_adapt_mode
{
3748 struct mwl8k_cmd_pkt header
;
3753 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw
*hw
, __u16 mode
)
3755 struct mwl8k_cmd_set_rate_adapt_mode
*cmd
;
3758 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3762 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE
);
3763 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3764 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
3765 cmd
->mode
= cpu_to_le16(mode
);
3767 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3774 * CMD_GET_WATCHDOG_BITMAP.
3776 struct mwl8k_cmd_get_watchdog_bitmap
{
3777 struct mwl8k_cmd_pkt header
;
3781 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw
*hw
, u8
*bitmap
)
3783 struct mwl8k_cmd_get_watchdog_bitmap
*cmd
;
3786 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3790 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP
);
3791 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3793 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
3795 *bitmap
= cmd
->bitmap
;
3802 #define MWL8K_WMM_QUEUE_NUMBER 3
3804 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
3807 static void mwl8k_watchdog_ba_events(struct work_struct
*work
)
3810 u8 bitmap
= 0, stream_index
;
3811 struct mwl8k_ampdu_stream
*streams
;
3812 struct mwl8k_priv
*priv
=
3813 container_of(work
, struct mwl8k_priv
, watchdog_ba_handle
);
3814 struct ieee80211_hw
*hw
= priv
->hw
;
3820 rc
= mwl8k_cmd_get_watchdog_bitmap(priv
->hw
, &bitmap
);
3824 spin_lock(&priv
->stream_lock
);
3826 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3827 for (i
= 0; i
< TOTAL_HW_TX_QUEUES
; i
++) {
3828 if (bitmap
& (1 << i
)) {
3829 stream_index
= (i
+ MWL8K_WMM_QUEUE_NUMBER
) %
3831 streams
= &priv
->ampdu
[stream_index
];
3832 if (streams
->state
== AMPDU_STREAM_ACTIVE
) {
3833 ieee80211_stop_tx_ba_session(streams
->sta
,
3835 spin_unlock(&priv
->stream_lock
);
3836 mwl8k_destroy_ba(hw
, stream_index
);
3837 spin_lock(&priv
->stream_lock
);
3842 spin_unlock(&priv
->stream_lock
);
3844 atomic_dec(&priv
->watchdog_event_pending
);
3845 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
3846 iowrite32((status
| MWL8K_A2H_INT_BA_WATCHDOG
),
3847 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
3848 mwl8k_fw_unlock(hw
);
3856 struct mwl8k_cmd_bss_start
{
3857 struct mwl8k_cmd_pkt header
;
3861 static int mwl8k_cmd_bss_start(struct ieee80211_hw
*hw
,
3862 struct ieee80211_vif
*vif
, int enable
)
3864 struct mwl8k_cmd_bss_start
*cmd
;
3865 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3866 struct mwl8k_priv
*priv
= hw
->priv
;
3869 if (enable
&& (priv
->running_bsses
& (1 << mwl8k_vif
->macid
)))
3872 if (!enable
&& !(priv
->running_bsses
& (1 << mwl8k_vif
->macid
)))
3875 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3879 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BSS_START
);
3880 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3881 cmd
->enable
= cpu_to_le32(enable
);
3883 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3888 priv
->running_bsses
|= (1 << mwl8k_vif
->macid
);
3890 priv
->running_bsses
&= ~(1 << mwl8k_vif
->macid
);
3895 static void mwl8k_enable_bsses(struct ieee80211_hw
*hw
, bool enable
, u32 bitmap
)
3897 struct mwl8k_priv
*priv
= hw
->priv
;
3898 struct mwl8k_vif
*mwl8k_vif
, *tmp_vif
;
3899 struct ieee80211_vif
*vif
;
3901 list_for_each_entry_safe(mwl8k_vif
, tmp_vif
, &priv
->vif_list
, list
) {
3902 vif
= mwl8k_vif
->vif
;
3904 if (!(bitmap
& (1 << mwl8k_vif
->macid
)))
3907 if (vif
->type
== NL80211_IFTYPE_AP
)
3908 mwl8k_cmd_bss_start(hw
, vif
, enable
);
3916 * UPSTREAM is tx direction
3918 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3919 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3921 enum ba_stream_action_type
{
3930 struct mwl8k_create_ba_stream
{
3935 u8 peer_mac_addr
[6];
3941 u8 reset_seq_no_flag
;
3943 u8 sta_src_mac_addr
[6];
3946 struct mwl8k_destroy_ba_stream
{
3951 struct mwl8k_cmd_bastream
{
3952 struct mwl8k_cmd_pkt header
;
3955 struct mwl8k_create_ba_stream create_params
;
3956 struct mwl8k_destroy_ba_stream destroy_params
;
3961 mwl8k_check_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3962 struct ieee80211_vif
*vif
)
3964 struct mwl8k_cmd_bastream
*cmd
;
3967 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
3971 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
3972 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
3974 cmd
->action
= cpu_to_le32(MWL8K_BA_CHECK
);
3976 cmd
->create_params
.queue_id
= stream
->idx
;
3977 memcpy(&cmd
->create_params
.peer_mac_addr
[0], stream
->sta
->addr
,
3979 cmd
->create_params
.tid
= stream
->tid
;
3981 cmd
->create_params
.flags
=
3982 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
) |
3983 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM
);
3985 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
3993 mwl8k_create_ba(struct ieee80211_hw
*hw
, struct mwl8k_ampdu_stream
*stream
,
3994 u8 buf_size
, struct ieee80211_vif
*vif
)
3996 struct mwl8k_cmd_bastream
*cmd
;
3999 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4004 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
4005 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4007 cmd
->action
= cpu_to_le32(MWL8K_BA_CREATE
);
4009 cmd
->create_params
.bar_thrs
= cpu_to_le32((u32
)buf_size
);
4010 cmd
->create_params
.window_size
= cpu_to_le32((u32
)buf_size
);
4011 cmd
->create_params
.queue_id
= stream
->idx
;
4013 memcpy(cmd
->create_params
.peer_mac_addr
, stream
->sta
->addr
, ETH_ALEN
);
4014 cmd
->create_params
.tid
= stream
->tid
;
4015 cmd
->create_params
.curr_seq_no
= cpu_to_le16(0);
4016 cmd
->create_params
.reset_seq_no_flag
= 1;
4018 cmd
->create_params
.param_info
=
4019 (stream
->sta
->ht_cap
.ampdu_factor
&
4020 IEEE80211_HT_AMPDU_PARM_FACTOR
) |
4021 ((stream
->sta
->ht_cap
.ampdu_density
<< 2) &
4022 IEEE80211_HT_AMPDU_PARM_DENSITY
);
4024 cmd
->create_params
.flags
=
4025 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE
|
4026 BASTREAM_FLAG_DIRECTION_UPSTREAM
);
4028 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4030 wiphy_debug(hw
->wiphy
, "Created a BA stream for %pM : tid %d\n",
4031 stream
->sta
->addr
, stream
->tid
);
4037 static void mwl8k_destroy_ba(struct ieee80211_hw
*hw
,
4040 struct mwl8k_cmd_bastream
*cmd
;
4042 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4046 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_BASTREAM
);
4047 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4048 cmd
->action
= cpu_to_le32(MWL8K_BA_DESTROY
);
4050 cmd
->destroy_params
.ba_context
= cpu_to_le32(idx
);
4051 mwl8k_post_cmd(hw
, &cmd
->header
);
4053 wiphy_debug(hw
->wiphy
, "Deleted BA stream index %d\n", idx
);
4061 struct mwl8k_cmd_set_new_stn
{
4062 struct mwl8k_cmd_pkt header
;
4068 __le32 legacy_rates
;
4071 __le16 ht_capabilities_info
;
4072 __u8 mac_ht_param_info
;
4074 __u8 control_channel
;
4083 #define MWL8K_STA_ACTION_ADD 0
4084 #define MWL8K_STA_ACTION_REMOVE 2
4086 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw
*hw
,
4087 struct ieee80211_vif
*vif
,
4088 struct ieee80211_sta
*sta
)
4090 struct mwl8k_cmd_set_new_stn
*cmd
;
4094 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4098 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
4099 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4100 cmd
->aid
= cpu_to_le16(sta
->aid
);
4101 memcpy(cmd
->mac_addr
, sta
->addr
, ETH_ALEN
);
4102 cmd
->stn_id
= cpu_to_le16(sta
->aid
);
4103 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_ADD
);
4104 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
4105 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
4107 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4108 cmd
->legacy_rates
= cpu_to_le32(rates
);
4109 if (sta
->ht_cap
.ht_supported
) {
4110 cmd
->ht_rates
[0] = sta
->ht_cap
.mcs
.rx_mask
[0];
4111 cmd
->ht_rates
[1] = sta
->ht_cap
.mcs
.rx_mask
[1];
4112 cmd
->ht_rates
[2] = sta
->ht_cap
.mcs
.rx_mask
[2];
4113 cmd
->ht_rates
[3] = sta
->ht_cap
.mcs
.rx_mask
[3];
4114 cmd
->ht_capabilities_info
= cpu_to_le16(sta
->ht_cap
.cap
);
4115 cmd
->mac_ht_param_info
= (sta
->ht_cap
.ampdu_factor
& 3) |
4116 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
4117 cmd
->is_qos_sta
= 1;
4120 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4126 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw
*hw
,
4127 struct ieee80211_vif
*vif
)
4129 struct mwl8k_cmd_set_new_stn
*cmd
;
4132 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4136 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
4137 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4138 memcpy(cmd
->mac_addr
, vif
->addr
, ETH_ALEN
);
4140 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4146 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw
*hw
,
4147 struct ieee80211_vif
*vif
, u8
*addr
)
4149 struct mwl8k_cmd_set_new_stn
*cmd
;
4150 struct mwl8k_priv
*priv
= hw
->priv
;
4154 spin_lock(&priv
->stream_lock
);
4155 /* Destroy any active ampdu streams for this sta */
4156 for (i
= 0; i
< MWL8K_NUM_AMPDU_STREAMS
; i
++) {
4157 struct mwl8k_ampdu_stream
*s
;
4158 s
= &priv
->ampdu
[i
];
4159 if (s
->state
!= AMPDU_NO_STREAM
) {
4160 if (memcmp(s
->sta
->addr
, addr
, ETH_ALEN
) == 0) {
4161 if (s
->state
== AMPDU_STREAM_ACTIVE
) {
4163 spin_unlock(&priv
->stream_lock
);
4164 mwl8k_destroy_ba(hw
, idx
);
4165 spin_lock(&priv
->stream_lock
);
4166 } else if (s
->state
== AMPDU_STREAM_NEW
) {
4167 mwl8k_remove_stream(hw
, s
);
4173 spin_unlock(&priv
->stream_lock
);
4175 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4179 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_NEW_STN
);
4180 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4181 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
4182 cmd
->action
= cpu_to_le16(MWL8K_STA_ACTION_REMOVE
);
4184 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4191 * CMD_UPDATE_ENCRYPTION.
4194 #define MAX_ENCR_KEY_LENGTH 16
4195 #define MIC_KEY_LENGTH 8
4197 struct mwl8k_cmd_update_encryption
{
4198 struct mwl8k_cmd_pkt header
;
4207 struct mwl8k_cmd_set_key
{
4208 struct mwl8k_cmd_pkt header
;
4217 __u8 key_material
[MAX_ENCR_KEY_LENGTH
];
4218 __u8 tkip_tx_mic_key
[MIC_KEY_LENGTH
];
4219 __u8 tkip_rx_mic_key
[MIC_KEY_LENGTH
];
4220 __le16 tkip_rsc_low
;
4221 __le32 tkip_rsc_high
;
4222 __le16 tkip_tsc_low
;
4223 __le32 tkip_tsc_high
;
4230 MWL8K_ENCR_REMOVE_KEY
,
4231 MWL8K_ENCR_SET_GROUP_KEY
,
4234 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4235 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4236 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4237 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4238 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4246 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4247 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4248 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4249 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4250 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4252 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw
*hw
,
4253 struct ieee80211_vif
*vif
,
4257 struct mwl8k_cmd_update_encryption
*cmd
;
4260 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4264 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
4265 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4266 cmd
->action
= cpu_to_le32(MWL8K_ENCR_ENABLE
);
4267 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
4268 cmd
->encr_type
= encr_type
;
4270 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4276 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key
*cmd
,
4278 struct ieee80211_key_conf
*key
)
4280 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION
);
4281 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4282 cmd
->length
= cpu_to_le16(sizeof(*cmd
) -
4283 offsetof(struct mwl8k_cmd_set_key
, length
));
4284 cmd
->key_id
= cpu_to_le32(key
->keyidx
);
4285 cmd
->key_len
= cpu_to_le16(key
->keylen
);
4286 memcpy(cmd
->mac_addr
, addr
, ETH_ALEN
);
4288 switch (key
->cipher
) {
4289 case WLAN_CIPHER_SUITE_WEP40
:
4290 case WLAN_CIPHER_SUITE_WEP104
:
4291 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_WEP
);
4292 if (key
->keyidx
== 0)
4293 cmd
->key_info
= cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY
);
4296 case WLAN_CIPHER_SUITE_TKIP
:
4297 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_TKIP
);
4298 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4299 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4300 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4301 cmd
->key_info
|= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4302 | MWL8K_KEY_FLAG_TSC_VALID
);
4304 case WLAN_CIPHER_SUITE_CCMP
:
4305 cmd
->key_type_id
= cpu_to_le16(MWL8K_ALG_CCMP
);
4306 cmd
->key_info
= (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4307 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE
)
4308 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY
);
4317 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw
*hw
,
4318 struct ieee80211_vif
*vif
,
4320 struct ieee80211_key_conf
*key
)
4322 struct mwl8k_cmd_set_key
*cmd
;
4327 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4329 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4333 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4339 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
4340 action
= MWL8K_ENCR_SET_KEY
;
4342 action
= MWL8K_ENCR_SET_GROUP_KEY
;
4344 switch (key
->cipher
) {
4345 case WLAN_CIPHER_SUITE_WEP40
:
4346 case WLAN_CIPHER_SUITE_WEP104
:
4347 if (!mwl8k_vif
->wep_key_conf
[idx
].enabled
) {
4348 memcpy(mwl8k_vif
->wep_key_conf
[idx
].key
, key
,
4349 sizeof(*key
) + key
->keylen
);
4350 mwl8k_vif
->wep_key_conf
[idx
].enabled
= 1;
4353 keymlen
= key
->keylen
;
4354 action
= MWL8K_ENCR_SET_KEY
;
4356 case WLAN_CIPHER_SUITE_TKIP
:
4357 keymlen
= MAX_ENCR_KEY_LENGTH
+ 2 * MIC_KEY_LENGTH
;
4359 case WLAN_CIPHER_SUITE_CCMP
:
4360 keymlen
= key
->keylen
;
4367 memcpy(cmd
->key_material
, key
->key
, keymlen
);
4368 cmd
->action
= cpu_to_le32(action
);
4370 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4377 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw
*hw
,
4378 struct ieee80211_vif
*vif
,
4380 struct ieee80211_key_conf
*key
)
4382 struct mwl8k_cmd_set_key
*cmd
;
4384 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4386 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4390 rc
= mwl8k_encryption_set_cmd_info(cmd
, addr
, key
);
4394 if (key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
4395 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
)
4396 mwl8k_vif
->wep_key_conf
[key
->keyidx
].enabled
= 0;
4398 cmd
->action
= cpu_to_le32(MWL8K_ENCR_REMOVE_KEY
);
4400 rc
= mwl8k_post_pervif_cmd(hw
, vif
, &cmd
->header
);
4407 static int mwl8k_set_key(struct ieee80211_hw
*hw
,
4408 enum set_key_cmd cmd_param
,
4409 struct ieee80211_vif
*vif
,
4410 struct ieee80211_sta
*sta
,
4411 struct ieee80211_key_conf
*key
)
4416 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4417 struct mwl8k_priv
*priv
= hw
->priv
;
4419 if (vif
->type
== NL80211_IFTYPE_STATION
&& !priv
->ap_fw
)
4427 if (cmd_param
== SET_KEY
) {
4428 rc
= mwl8k_cmd_encryption_set_key(hw
, vif
, addr
, key
);
4432 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
)
4433 || (key
->cipher
== WLAN_CIPHER_SUITE_WEP104
))
4434 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_WEP
;
4436 encr_type
= MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED
;
4438 rc
= mwl8k_cmd_update_encryption_enable(hw
, vif
, addr
,
4443 mwl8k_vif
->is_hw_crypto_enabled
= true;
4446 rc
= mwl8k_cmd_encryption_remove_key(hw
, vif
, addr
, key
);
4458 struct ewc_ht_info
{
4464 struct peer_capability_info
{
4465 /* Peer type - AP vs. STA. */
4468 /* Basic 802.11 capabilities from assoc resp. */
4471 /* Set if peer supports 802.11n high throughput (HT). */
4474 /* Valid if HT is supported. */
4476 __u8 extended_ht_caps
;
4477 struct ewc_ht_info ewc_info
;
4479 /* Legacy rate table. Intersection of our rates and peer rates. */
4480 __u8 legacy_rates
[12];
4482 /* HT rate table. Intersection of our rates and peer rates. */
4486 /* If set, interoperability mode, no proprietary extensions. */
4490 __le16 amsdu_enabled
;
4493 struct mwl8k_cmd_update_stadb
{
4494 struct mwl8k_cmd_pkt header
;
4496 /* See STADB_ACTION_TYPE */
4499 /* Peer MAC address */
4500 __u8 peer_addr
[ETH_ALEN
];
4504 /* Peer info - valid during add/update. */
4505 struct peer_capability_info peer_info
;
4508 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4509 #define MWL8K_STA_DB_DEL_ENTRY 2
4511 /* Peer Entry flags - used to define the type of the peer node */
4512 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4514 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw
*hw
,
4515 struct ieee80211_vif
*vif
,
4516 struct ieee80211_sta
*sta
)
4518 struct mwl8k_cmd_update_stadb
*cmd
;
4519 struct peer_capability_info
*p
;
4523 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4527 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4528 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4529 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY
);
4530 memcpy(cmd
->peer_addr
, sta
->addr
, ETH_ALEN
);
4532 p
= &cmd
->peer_info
;
4533 p
->peer_type
= MWL8K_PEER_TYPE_ACCESSPOINT
;
4534 p
->basic_caps
= cpu_to_le16(vif
->bss_conf
.assoc_capability
);
4535 p
->ht_support
= sta
->ht_cap
.ht_supported
;
4536 p
->ht_caps
= cpu_to_le16(sta
->ht_cap
.cap
);
4537 p
->extended_ht_caps
= (sta
->ht_cap
.ampdu_factor
& 3) |
4538 ((sta
->ht_cap
.ampdu_density
& 7) << 2);
4539 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
4540 rates
= sta
->supp_rates
[IEEE80211_BAND_2GHZ
];
4542 rates
= sta
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
4543 legacy_rate_mask_to_array(p
->legacy_rates
, rates
);
4544 memcpy(p
->ht_rates
, sta
->ht_cap
.mcs
.rx_mask
, 16);
4546 p
->amsdu_enabled
= 0;
4548 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4556 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw
*hw
,
4557 struct ieee80211_vif
*vif
, u8
*addr
)
4559 struct mwl8k_cmd_update_stadb
*cmd
;
4562 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
4566 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
4567 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
4568 cmd
->action
= cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY
);
4569 memcpy(cmd
->peer_addr
, addr
, ETH_ALEN
);
4571 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
4579 * Interrupt handling.
4581 static irqreturn_t
mwl8k_interrupt(int irq
, void *dev_id
)
4583 struct ieee80211_hw
*hw
= dev_id
;
4584 struct mwl8k_priv
*priv
= hw
->priv
;
4587 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4591 if (status
& MWL8K_A2H_INT_TX_DONE
) {
4592 status
&= ~MWL8K_A2H_INT_TX_DONE
;
4593 tasklet_schedule(&priv
->poll_tx_task
);
4596 if (status
& MWL8K_A2H_INT_RX_READY
) {
4597 status
&= ~MWL8K_A2H_INT_RX_READY
;
4598 tasklet_schedule(&priv
->poll_rx_task
);
4601 if (status
& MWL8K_A2H_INT_BA_WATCHDOG
) {
4602 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG
,
4603 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4605 atomic_inc(&priv
->watchdog_event_pending
);
4606 status
&= ~MWL8K_A2H_INT_BA_WATCHDOG
;
4607 ieee80211_queue_work(hw
, &priv
->watchdog_ba_handle
);
4611 iowrite32(~status
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4613 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
4614 if (priv
->hostcmd_wait
!= NULL
)
4615 complete(priv
->hostcmd_wait
);
4618 if (status
& MWL8K_A2H_INT_QUEUE_EMPTY
) {
4619 if (!mutex_is_locked(&priv
->fw_mutex
) &&
4620 priv
->radio_on
&& priv
->pending_tx_pkts
)
4621 mwl8k_tx_start(priv
);
4627 static void mwl8k_tx_poll(unsigned long data
)
4629 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4630 struct mwl8k_priv
*priv
= hw
->priv
;
4636 spin_lock_bh(&priv
->tx_lock
);
4638 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4639 limit
-= mwl8k_txq_reclaim(hw
, i
, limit
, 0);
4641 if (!priv
->pending_tx_pkts
&& priv
->tx_wait
!= NULL
) {
4642 complete(priv
->tx_wait
);
4643 priv
->tx_wait
= NULL
;
4646 spin_unlock_bh(&priv
->tx_lock
);
4649 writel(~MWL8K_A2H_INT_TX_DONE
,
4650 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4652 tasklet_schedule(&priv
->poll_tx_task
);
4656 static void mwl8k_rx_poll(unsigned long data
)
4658 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*)data
;
4659 struct mwl8k_priv
*priv
= hw
->priv
;
4663 limit
-= rxq_process(hw
, 0, limit
);
4664 limit
-= rxq_refill(hw
, 0, limit
);
4667 writel(~MWL8K_A2H_INT_RX_READY
,
4668 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
4670 tasklet_schedule(&priv
->poll_rx_task
);
4676 * Core driver operations.
4678 static void mwl8k_tx(struct ieee80211_hw
*hw
,
4679 struct ieee80211_tx_control
*control
,
4680 struct sk_buff
*skb
)
4682 struct mwl8k_priv
*priv
= hw
->priv
;
4683 int index
= skb_get_queue_mapping(skb
);
4685 if (!priv
->radio_on
) {
4686 wiphy_debug(hw
->wiphy
,
4687 "dropped TX frame since radio disabled\n");
4692 mwl8k_txq_xmit(hw
, index
, control
->sta
, skb
);
4695 static int mwl8k_start(struct ieee80211_hw
*hw
)
4697 struct mwl8k_priv
*priv
= hw
->priv
;
4700 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
4701 IRQF_SHARED
, MWL8K_NAME
, hw
);
4704 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
4707 priv
->irq
= priv
->pdev
->irq
;
4709 /* Enable TX reclaim and RX tasklets. */
4710 tasklet_enable(&priv
->poll_tx_task
);
4711 tasklet_enable(&priv
->poll_rx_task
);
4713 /* Enable interrupts */
4714 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4715 iowrite32(MWL8K_A2H_EVENTS
,
4716 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
4718 rc
= mwl8k_fw_lock(hw
);
4720 rc
= mwl8k_cmd_radio_enable(hw
);
4724 rc
= mwl8k_cmd_enable_sniffer(hw
, 0);
4727 rc
= mwl8k_cmd_set_pre_scan(hw
);
4730 rc
= mwl8k_cmd_set_post_scan(hw
,
4731 "\x00\x00\x00\x00\x00\x00");
4735 rc
= mwl8k_cmd_set_rateadapt_mode(hw
, 0);
4738 rc
= mwl8k_cmd_set_wmm_mode(hw
, 0);
4740 mwl8k_fw_unlock(hw
);
4744 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4745 free_irq(priv
->pdev
->irq
, hw
);
4747 tasklet_disable(&priv
->poll_tx_task
);
4748 tasklet_disable(&priv
->poll_rx_task
);
4750 ieee80211_wake_queues(hw
);
4756 static void mwl8k_stop(struct ieee80211_hw
*hw
)
4758 struct mwl8k_priv
*priv
= hw
->priv
;
4761 if (!priv
->hw_restart_in_progress
)
4762 mwl8k_cmd_radio_disable(hw
);
4764 ieee80211_stop_queues(hw
);
4766 /* Disable interrupts */
4767 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
4768 if (priv
->irq
!= -1) {
4769 free_irq(priv
->pdev
->irq
, hw
);
4773 /* Stop finalize join worker */
4774 cancel_work_sync(&priv
->finalize_join_worker
);
4775 cancel_work_sync(&priv
->watchdog_ba_handle
);
4776 if (priv
->beacon_skb
!= NULL
)
4777 dev_kfree_skb(priv
->beacon_skb
);
4779 /* Stop TX reclaim and RX tasklets. */
4780 tasklet_disable(&priv
->poll_tx_task
);
4781 tasklet_disable(&priv
->poll_rx_task
);
4783 /* Return all skbs to mac80211 */
4784 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
4785 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
4788 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
);
4790 static int mwl8k_add_interface(struct ieee80211_hw
*hw
,
4791 struct ieee80211_vif
*vif
)
4793 struct mwl8k_priv
*priv
= hw
->priv
;
4794 struct mwl8k_vif
*mwl8k_vif
;
4795 u32 macids_supported
;
4797 struct mwl8k_device_info
*di
;
4800 * Reject interface creation if sniffer mode is active, as
4801 * STA operation is mutually exclusive with hardware sniffer
4802 * mode. (Sniffer mode is only used on STA firmware.)
4804 if (priv
->sniffer_enabled
) {
4805 wiphy_info(hw
->wiphy
,
4806 "unable to create STA interface because sniffer mode is enabled\n");
4810 di
= priv
->device_info
;
4811 switch (vif
->type
) {
4812 case NL80211_IFTYPE_AP
:
4813 if (!priv
->ap_fw
&& di
->fw_image_ap
) {
4814 /* we must load the ap fw to meet this request */
4815 if (!list_empty(&priv
->vif_list
))
4817 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4821 macids_supported
= priv
->ap_macids_supported
;
4823 case NL80211_IFTYPE_STATION
:
4824 if (priv
->ap_fw
&& di
->fw_image_sta
) {
4825 if (!list_empty(&priv
->vif_list
)) {
4826 wiphy_warn(hw
->wiphy
, "AP interface is running.\n"
4827 "Adding STA interface for WDS");
4829 /* we must load the sta fw to
4830 * meet this request.
4832 rc
= mwl8k_reload_firmware(hw
,
4838 macids_supported
= priv
->sta_macids_supported
;
4844 macid
= ffs(macids_supported
& ~priv
->macids_used
);
4848 /* Setup driver private area. */
4849 mwl8k_vif
= MWL8K_VIF(vif
);
4850 memset(mwl8k_vif
, 0, sizeof(*mwl8k_vif
));
4851 mwl8k_vif
->vif
= vif
;
4852 mwl8k_vif
->macid
= macid
;
4853 mwl8k_vif
->seqno
= 0;
4854 memcpy(mwl8k_vif
->bssid
, vif
->addr
, ETH_ALEN
);
4855 mwl8k_vif
->is_hw_crypto_enabled
= false;
4857 /* Set the mac address. */
4858 mwl8k_cmd_set_mac_addr(hw
, vif
, vif
->addr
);
4860 if (vif
->type
== NL80211_IFTYPE_AP
)
4861 mwl8k_cmd_set_new_stn_add_self(hw
, vif
);
4863 priv
->macids_used
|= 1 << mwl8k_vif
->macid
;
4864 list_add_tail(&mwl8k_vif
->list
, &priv
->vif_list
);
4869 static void mwl8k_remove_vif(struct mwl8k_priv
*priv
, struct mwl8k_vif
*vif
)
4871 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4872 if (!priv
->macids_used
)
4875 priv
->macids_used
&= ~(1 << vif
->macid
);
4876 list_del(&vif
->list
);
4879 static void mwl8k_remove_interface(struct ieee80211_hw
*hw
,
4880 struct ieee80211_vif
*vif
)
4882 struct mwl8k_priv
*priv
= hw
->priv
;
4883 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
4885 if (vif
->type
== NL80211_IFTYPE_AP
)
4886 mwl8k_cmd_set_new_stn_del(hw
, vif
, vif
->addr
);
4888 mwl8k_cmd_del_mac_addr(hw
, vif
, vif
->addr
);
4890 mwl8k_remove_vif(priv
, mwl8k_vif
);
4893 static void mwl8k_hw_restart_work(struct work_struct
*work
)
4895 struct mwl8k_priv
*priv
=
4896 container_of(work
, struct mwl8k_priv
, fw_reload
);
4897 struct ieee80211_hw
*hw
= priv
->hw
;
4898 struct mwl8k_device_info
*di
;
4901 /* If some command is waiting for a response, clear it */
4902 if (priv
->hostcmd_wait
!= NULL
) {
4903 complete(priv
->hostcmd_wait
);
4904 priv
->hostcmd_wait
= NULL
;
4907 priv
->hw_restart_owner
= current
;
4908 di
= priv
->device_info
;
4912 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_ap
);
4914 rc
= mwl8k_reload_firmware(hw
, di
->fw_image_sta
);
4919 priv
->hw_restart_owner
= NULL
;
4920 priv
->hw_restart_in_progress
= false;
4923 * This unlock will wake up the queues and
4924 * also opens the command path for other
4927 mwl8k_fw_unlock(hw
);
4929 ieee80211_restart_hw(hw
);
4931 wiphy_err(hw
->wiphy
, "Firmware restarted successfully\n");
4935 mwl8k_fw_unlock(hw
);
4937 wiphy_err(hw
->wiphy
, "Firmware restart failed\n");
4940 static int mwl8k_config(struct ieee80211_hw
*hw
, u32 changed
)
4942 struct ieee80211_conf
*conf
= &hw
->conf
;
4943 struct mwl8k_priv
*priv
= hw
->priv
;
4946 rc
= mwl8k_fw_lock(hw
);
4950 if (conf
->flags
& IEEE80211_CONF_IDLE
)
4951 rc
= mwl8k_cmd_radio_disable(hw
);
4953 rc
= mwl8k_cmd_radio_enable(hw
);
4957 if (changed
& IEEE80211_CONF_CHANGE_CHANNEL
) {
4958 rc
= mwl8k_cmd_set_rf_channel(hw
, conf
);
4963 if (conf
->power_level
> 18)
4964 conf
->power_level
= 18;
4968 if (conf
->flags
& IEEE80211_CONF_CHANGE_POWER
) {
4969 rc
= mwl8k_cmd_tx_power(hw
, conf
, conf
->power_level
);
4976 rc
= mwl8k_cmd_rf_tx_power(hw
, conf
->power_level
);
4979 rc
= mwl8k_cmd_mimo_config(hw
, 0x7, 0x7);
4983 mwl8k_fw_unlock(hw
);
4989 mwl8k_bss_info_changed_sta(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
4990 struct ieee80211_bss_conf
*info
, u32 changed
)
4992 struct mwl8k_priv
*priv
= hw
->priv
;
4993 u32 ap_legacy_rates
= 0;
4994 u8 ap_mcs_rates
[16];
4997 if (mwl8k_fw_lock(hw
))
5001 * No need to capture a beacon if we're no longer associated.
5003 if ((changed
& BSS_CHANGED_ASSOC
) && !vif
->bss_conf
.assoc
)
5004 priv
->capture_beacon
= false;
5007 * Get the AP's legacy and MCS rates.
5009 if (vif
->bss_conf
.assoc
) {
5010 struct ieee80211_sta
*ap
;
5014 ap
= ieee80211_find_sta(vif
, vif
->bss_conf
.bssid
);
5020 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
) {
5021 ap_legacy_rates
= ap
->supp_rates
[IEEE80211_BAND_2GHZ
];
5024 ap
->supp_rates
[IEEE80211_BAND_5GHZ
] << 5;
5026 memcpy(ap_mcs_rates
, ap
->ht_cap
.mcs
.rx_mask
, 16);
5031 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
&&
5033 rc
= mwl8k_cmd_set_rate(hw
, vif
, ap_legacy_rates
, ap_mcs_rates
);
5037 rc
= mwl8k_cmd_use_fixed_rate_sta(hw
);
5041 if ((changed
& BSS_CHANGED_ASSOC
) && vif
->bss_conf
.assoc
&&
5046 /* Use AP firmware specific rate command.
5048 idx
= ffs(vif
->bss_conf
.basic_rates
);
5052 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
5053 rate
= mwl8k_rates_24
[idx
].hw_value
;
5055 rate
= mwl8k_rates_50
[idx
].hw_value
;
5057 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
5061 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
5062 rc
= mwl8k_set_radio_preamble(hw
,
5063 vif
->bss_conf
.use_short_preamble
);
5068 if ((changed
& BSS_CHANGED_ERP_SLOT
) && !priv
->ap_fw
) {
5069 rc
= mwl8k_cmd_set_slot(hw
, vif
->bss_conf
.use_short_slot
);
5074 if (vif
->bss_conf
.assoc
&& !priv
->ap_fw
&&
5075 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_ERP_CTS_PROT
|
5077 rc
= mwl8k_cmd_set_aid(hw
, vif
, ap_legacy_rates
);
5082 if (vif
->bss_conf
.assoc
&&
5083 (changed
& (BSS_CHANGED_ASSOC
| BSS_CHANGED_BEACON_INT
))) {
5085 * Finalize the join. Tell rx handler to process
5086 * next beacon from our BSSID.
5088 memcpy(priv
->capture_bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
5089 priv
->capture_beacon
= true;
5093 mwl8k_fw_unlock(hw
);
5097 mwl8k_bss_info_changed_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5098 struct ieee80211_bss_conf
*info
, u32 changed
)
5102 if (mwl8k_fw_lock(hw
))
5105 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
5106 rc
= mwl8k_set_radio_preamble(hw
,
5107 vif
->bss_conf
.use_short_preamble
);
5112 if (changed
& BSS_CHANGED_BASIC_RATES
) {
5117 * Use lowest supported basic rate for multicasts
5118 * and management frames (such as probe responses --
5119 * beacons will always go out at 1 Mb/s).
5121 idx
= ffs(vif
->bss_conf
.basic_rates
);
5125 if (hw
->conf
.chandef
.chan
->band
== IEEE80211_BAND_2GHZ
)
5126 rate
= mwl8k_rates_24
[idx
].hw_value
;
5128 rate
= mwl8k_rates_50
[idx
].hw_value
;
5130 mwl8k_cmd_use_fixed_rate_ap(hw
, rate
, rate
);
5133 if (changed
& (BSS_CHANGED_BEACON_INT
| BSS_CHANGED_BEACON
)) {
5134 struct sk_buff
*skb
;
5136 skb
= ieee80211_beacon_get(hw
, vif
);
5138 mwl8k_cmd_set_beacon(hw
, vif
, skb
->data
, skb
->len
);
5143 if (changed
& BSS_CHANGED_BEACON_ENABLED
)
5144 mwl8k_cmd_bss_start(hw
, vif
, info
->enable_beacon
);
5147 mwl8k_fw_unlock(hw
);
5151 mwl8k_bss_info_changed(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5152 struct ieee80211_bss_conf
*info
, u32 changed
)
5154 if (vif
->type
== NL80211_IFTYPE_STATION
)
5155 mwl8k_bss_info_changed_sta(hw
, vif
, info
, changed
);
5156 if (vif
->type
== NL80211_IFTYPE_AP
)
5157 mwl8k_bss_info_changed_ap(hw
, vif
, info
, changed
);
5160 static u64
mwl8k_prepare_multicast(struct ieee80211_hw
*hw
,
5161 struct netdev_hw_addr_list
*mc_list
)
5163 struct mwl8k_cmd_pkt
*cmd
;
5166 * Synthesize and return a command packet that programs the
5167 * hardware multicast address filter. At this point we don't
5168 * know whether FIF_ALLMULTI is being requested, but if it is,
5169 * we'll end up throwing this packet away and creating a new
5170 * one in mwl8k_configure_filter().
5172 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 0, mc_list
);
5174 return (unsigned long)cmd
;
5178 mwl8k_configure_filter_sniffer(struct ieee80211_hw
*hw
,
5179 unsigned int changed_flags
,
5180 unsigned int *total_flags
)
5182 struct mwl8k_priv
*priv
= hw
->priv
;
5185 * Hardware sniffer mode is mutually exclusive with STA
5186 * operation, so refuse to enable sniffer mode if a STA
5187 * interface is active.
5189 if (!list_empty(&priv
->vif_list
)) {
5190 if (net_ratelimit())
5191 wiphy_info(hw
->wiphy
,
5192 "not enabling sniffer mode because STA interface is active\n");
5196 if (!priv
->sniffer_enabled
) {
5197 if (mwl8k_cmd_enable_sniffer(hw
, 1))
5199 priv
->sniffer_enabled
= true;
5202 *total_flags
&= FIF_PROMISC_IN_BSS
| FIF_ALLMULTI
|
5203 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
|
5209 static struct mwl8k_vif
*mwl8k_first_vif(struct mwl8k_priv
*priv
)
5211 if (!list_empty(&priv
->vif_list
))
5212 return list_entry(priv
->vif_list
.next
, struct mwl8k_vif
, list
);
5217 static void mwl8k_configure_filter(struct ieee80211_hw
*hw
,
5218 unsigned int changed_flags
,
5219 unsigned int *total_flags
,
5222 struct mwl8k_priv
*priv
= hw
->priv
;
5223 struct mwl8k_cmd_pkt
*cmd
= (void *)(unsigned long)multicast
;
5226 * AP firmware doesn't allow fine-grained control over
5227 * the receive filter.
5230 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
5236 * Enable hardware sniffer mode if FIF_CONTROL or
5237 * FIF_OTHER_BSS is requested.
5239 if (*total_flags
& (FIF_CONTROL
| FIF_OTHER_BSS
) &&
5240 mwl8k_configure_filter_sniffer(hw
, changed_flags
, total_flags
)) {
5245 /* Clear unsupported feature flags */
5246 *total_flags
&= FIF_ALLMULTI
| FIF_BCN_PRBRESP_PROMISC
;
5248 if (mwl8k_fw_lock(hw
)) {
5253 if (priv
->sniffer_enabled
) {
5254 mwl8k_cmd_enable_sniffer(hw
, 0);
5255 priv
->sniffer_enabled
= false;
5258 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
5259 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
) {
5261 * Disable the BSS filter.
5263 mwl8k_cmd_set_pre_scan(hw
);
5265 struct mwl8k_vif
*mwl8k_vif
;
5269 * Enable the BSS filter.
5271 * If there is an active STA interface, use that
5272 * interface's BSSID, otherwise use a dummy one
5273 * (where the OUI part needs to be nonzero for
5274 * the BSSID to be accepted by POST_SCAN).
5276 mwl8k_vif
= mwl8k_first_vif(priv
);
5277 if (mwl8k_vif
!= NULL
)
5278 bssid
= mwl8k_vif
->vif
->bss_conf
.bssid
;
5280 bssid
= "\x01\x00\x00\x00\x00\x00";
5282 mwl8k_cmd_set_post_scan(hw
, bssid
);
5287 * If FIF_ALLMULTI is being requested, throw away the command
5288 * packet that ->prepare_multicast() built and replace it with
5289 * a command packet that enables reception of all multicast
5292 if (*total_flags
& FIF_ALLMULTI
) {
5294 cmd
= __mwl8k_cmd_mac_multicast_adr(hw
, 1, NULL
);
5298 mwl8k_post_cmd(hw
, cmd
);
5302 mwl8k_fw_unlock(hw
);
5305 static int mwl8k_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
5307 return mwl8k_cmd_set_rts_threshold(hw
, value
);
5310 static int mwl8k_sta_remove(struct ieee80211_hw
*hw
,
5311 struct ieee80211_vif
*vif
,
5312 struct ieee80211_sta
*sta
)
5314 struct mwl8k_priv
*priv
= hw
->priv
;
5317 return mwl8k_cmd_set_new_stn_del(hw
, vif
, sta
->addr
);
5319 return mwl8k_cmd_update_stadb_del(hw
, vif
, sta
->addr
);
5322 static int mwl8k_sta_add(struct ieee80211_hw
*hw
,
5323 struct ieee80211_vif
*vif
,
5324 struct ieee80211_sta
*sta
)
5326 struct mwl8k_priv
*priv
= hw
->priv
;
5329 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
5330 struct ieee80211_key_conf
*key
;
5333 ret
= mwl8k_cmd_update_stadb_add(hw
, vif
, sta
);
5335 MWL8K_STA(sta
)->peer_id
= ret
;
5336 if (sta
->ht_cap
.ht_supported
)
5337 MWL8K_STA(sta
)->is_ampdu_allowed
= true;
5342 ret
= mwl8k_cmd_set_new_stn_add(hw
, vif
, sta
);
5345 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
5346 key
= IEEE80211_KEY_CONF(mwl8k_vif
->wep_key_conf
[i
].key
);
5347 if (mwl8k_vif
->wep_key_conf
[i
].enabled
)
5348 mwl8k_set_key(hw
, SET_KEY
, vif
, sta
, key
);
5353 static int mwl8k_conf_tx(struct ieee80211_hw
*hw
,
5354 struct ieee80211_vif
*vif
, u16 queue
,
5355 const struct ieee80211_tx_queue_params
*params
)
5357 struct mwl8k_priv
*priv
= hw
->priv
;
5360 rc
= mwl8k_fw_lock(hw
);
5362 BUG_ON(queue
> MWL8K_TX_WMM_QUEUES
- 1);
5363 memcpy(&priv
->wmm_params
[queue
], params
, sizeof(*params
));
5365 if (!priv
->wmm_enabled
)
5366 rc
= mwl8k_cmd_set_wmm_mode(hw
, 1);
5369 int q
= MWL8K_TX_WMM_QUEUES
- 1 - queue
;
5370 rc
= mwl8k_cmd_set_edca_params(hw
, q
,
5377 mwl8k_fw_unlock(hw
);
5383 static int mwl8k_get_stats(struct ieee80211_hw
*hw
,
5384 struct ieee80211_low_level_stats
*stats
)
5386 return mwl8k_cmd_get_stat(hw
, stats
);
5389 static int mwl8k_get_survey(struct ieee80211_hw
*hw
, int idx
,
5390 struct survey_info
*survey
)
5392 struct mwl8k_priv
*priv
= hw
->priv
;
5393 struct ieee80211_conf
*conf
= &hw
->conf
;
5394 struct ieee80211_supported_band
*sband
;
5397 sband
= hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
];
5399 if (sband
&& idx
>= sband
->n_channels
) {
5400 idx
-= sband
->n_channels
;
5405 sband
= hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
];
5407 if (!sband
|| idx
>= sband
->n_channels
)
5410 memcpy(survey
, &priv
->survey
[idx
], sizeof(*survey
));
5411 survey
->channel
= &sband
->channels
[idx
];
5419 survey
->channel
= conf
->chandef
.chan
;
5420 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
5421 survey
->noise
= priv
->noise
;
5426 #define MAX_AMPDU_ATTEMPTS 5
5429 mwl8k_ampdu_action(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
5430 enum ieee80211_ampdu_mlme_action action
,
5431 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
5436 struct mwl8k_priv
*priv
= hw
->priv
;
5437 struct mwl8k_ampdu_stream
*stream
;
5438 u8
*addr
= sta
->addr
, idx
;
5439 struct mwl8k_sta
*sta_info
= MWL8K_STA(sta
);
5441 if (!(hw
->flags
& IEEE80211_HW_AMPDU_AGGREGATION
))
5444 spin_lock(&priv
->stream_lock
);
5445 stream
= mwl8k_lookup_stream(hw
, addr
, tid
);
5448 case IEEE80211_AMPDU_RX_START
:
5449 case IEEE80211_AMPDU_RX_STOP
:
5451 case IEEE80211_AMPDU_TX_START
:
5452 /* By the time we get here the hw queues may contain outgoing
5453 * packets for this RA/TID that are not part of this BA
5454 * session. The hw will assign sequence numbers to these
5455 * packets as they go out. So if we query the hw for its next
5456 * sequence number and use that for the SSN here, it may end up
5457 * being wrong, which will lead to sequence number mismatch at
5458 * the recipient. To avoid this, we reset the sequence number
5459 * to O for the first MPDU in this BA stream.
5462 if (stream
== NULL
) {
5463 /* This means that somebody outside this driver called
5464 * ieee80211_start_tx_ba_session. This is unexpected
5465 * because we do our own rate control. Just warn and
5468 wiphy_warn(hw
->wiphy
, "Unexpected call to %s. "
5469 "Proceeding anyway.\n", __func__
);
5470 stream
= mwl8k_add_stream(hw
, sta
, tid
);
5472 if (stream
== NULL
) {
5473 wiphy_debug(hw
->wiphy
, "no free AMPDU streams\n");
5477 stream
->state
= AMPDU_STREAM_IN_PROGRESS
;
5479 /* Release the lock before we do the time consuming stuff */
5480 spin_unlock(&priv
->stream_lock
);
5481 for (i
= 0; i
< MAX_AMPDU_ATTEMPTS
; i
++) {
5483 /* Check if link is still valid */
5484 if (!sta_info
->is_ampdu_allowed
) {
5485 spin_lock(&priv
->stream_lock
);
5486 mwl8k_remove_stream(hw
, stream
);
5487 spin_unlock(&priv
->stream_lock
);
5491 rc
= mwl8k_check_ba(hw
, stream
, vif
);
5493 /* If HW restart is in progress mwl8k_post_cmd will
5494 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5497 if (!rc
|| rc
== -EBUSY
)
5500 * HW queues take time to be flushed, give them
5506 spin_lock(&priv
->stream_lock
);
5508 wiphy_err(hw
->wiphy
, "Stream for tid %d busy after %d"
5509 " attempts\n", tid
, MAX_AMPDU_ATTEMPTS
);
5510 mwl8k_remove_stream(hw
, stream
);
5514 ieee80211_start_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5516 case IEEE80211_AMPDU_TX_STOP_CONT
:
5517 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
5518 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
5520 if (stream
->state
== AMPDU_STREAM_ACTIVE
) {
5522 spin_unlock(&priv
->stream_lock
);
5523 mwl8k_destroy_ba(hw
, idx
);
5524 spin_lock(&priv
->stream_lock
);
5526 mwl8k_remove_stream(hw
, stream
);
5528 ieee80211_stop_tx_ba_cb_irqsafe(vif
, addr
, tid
);
5530 case IEEE80211_AMPDU_TX_OPERATIONAL
:
5531 BUG_ON(stream
== NULL
);
5532 BUG_ON(stream
->state
!= AMPDU_STREAM_IN_PROGRESS
);
5533 spin_unlock(&priv
->stream_lock
);
5534 rc
= mwl8k_create_ba(hw
, stream
, buf_size
, vif
);
5535 spin_lock(&priv
->stream_lock
);
5537 stream
->state
= AMPDU_STREAM_ACTIVE
;
5540 spin_unlock(&priv
->stream_lock
);
5541 mwl8k_destroy_ba(hw
, idx
);
5542 spin_lock(&priv
->stream_lock
);
5543 wiphy_debug(hw
->wiphy
,
5544 "Failed adding stream for sta %pM tid %d\n",
5546 mwl8k_remove_stream(hw
, stream
);
5554 spin_unlock(&priv
->stream_lock
);
5558 static void mwl8k_sw_scan_start(struct ieee80211_hw
*hw
)
5560 struct mwl8k_priv
*priv
= hw
->priv
;
5566 /* clear all stats */
5567 priv
->channel_time
= 0;
5568 ioread32(priv
->regs
+ BBU_RXRDY_CNT_REG
);
5569 ioread32(priv
->regs
+ NOK_CCA_CNT_REG
);
5570 mwl8k_cmd_bbp_reg_access(priv
->hw
, 0, BBU_AVG_NOISE_VAL
, &tmp
);
5572 priv
->sw_scan_start
= true;
5575 static void mwl8k_sw_scan_complete(struct ieee80211_hw
*hw
)
5577 struct mwl8k_priv
*priv
= hw
->priv
;
5583 priv
->sw_scan_start
= false;
5585 /* clear all stats */
5586 priv
->channel_time
= 0;
5587 ioread32(priv
->regs
+ BBU_RXRDY_CNT_REG
);
5588 ioread32(priv
->regs
+ NOK_CCA_CNT_REG
);
5589 mwl8k_cmd_bbp_reg_access(priv
->hw
, 0, BBU_AVG_NOISE_VAL
, &tmp
);
5592 static const struct ieee80211_ops mwl8k_ops
= {
5594 .start
= mwl8k_start
,
5596 .add_interface
= mwl8k_add_interface
,
5597 .remove_interface
= mwl8k_remove_interface
,
5598 .config
= mwl8k_config
,
5599 .bss_info_changed
= mwl8k_bss_info_changed
,
5600 .prepare_multicast
= mwl8k_prepare_multicast
,
5601 .configure_filter
= mwl8k_configure_filter
,
5602 .set_key
= mwl8k_set_key
,
5603 .set_rts_threshold
= mwl8k_set_rts_threshold
,
5604 .sta_add
= mwl8k_sta_add
,
5605 .sta_remove
= mwl8k_sta_remove
,
5606 .conf_tx
= mwl8k_conf_tx
,
5607 .get_stats
= mwl8k_get_stats
,
5608 .get_survey
= mwl8k_get_survey
,
5609 .ampdu_action
= mwl8k_ampdu_action
,
5610 .sw_scan_start
= mwl8k_sw_scan_start
,
5611 .sw_scan_complete
= mwl8k_sw_scan_complete
,
5614 static void mwl8k_finalize_join_worker(struct work_struct
*work
)
5616 struct mwl8k_priv
*priv
=
5617 container_of(work
, struct mwl8k_priv
, finalize_join_worker
);
5618 struct sk_buff
*skb
= priv
->beacon_skb
;
5619 struct ieee80211_mgmt
*mgmt
= (void *)skb
->data
;
5620 int len
= skb
->len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
5621 const u8
*tim
= cfg80211_find_ie(WLAN_EID_TIM
,
5622 mgmt
->u
.beacon
.variable
, len
);
5623 int dtim_period
= 1;
5625 if (tim
&& tim
[1] >= 2)
5626 dtim_period
= tim
[3];
5628 mwl8k_cmd_finalize_join(priv
->hw
, skb
->data
, skb
->len
, dtim_period
);
5631 priv
->beacon_skb
= NULL
;
5641 #define MWL8K_8366_AP_FW_API 3
5642 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
5643 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5645 #define MWL8K_8764_AP_FW_API 1
5646 #define _MWL8K_8764_AP_FW(api) "mwl8k/fmimage_8764_ap-" #api ".fw"
5647 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5649 static struct mwl8k_device_info mwl8k_info_tbl
[] = {
5651 .part_name
= "88w8363",
5652 .helper_image
= "mwl8k/helper_8363.fw",
5653 .fw_image_sta
= "mwl8k/fmimage_8363.fw",
5656 .part_name
= "88w8687",
5657 .helper_image
= "mwl8k/helper_8687.fw",
5658 .fw_image_sta
= "mwl8k/fmimage_8687.fw",
5661 .part_name
= "88w8366",
5662 .helper_image
= "mwl8k/helper_8366.fw",
5663 .fw_image_sta
= "mwl8k/fmimage_8366.fw",
5664 .fw_image_ap
= MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
),
5665 .fw_api_ap
= MWL8K_8366_AP_FW_API
,
5666 .ap_rxd_ops
= &rxd_ap_ops
,
5669 .part_name
= "88w8764",
5670 .fw_image_ap
= MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API
),
5671 .fw_api_ap
= MWL8K_8764_AP_FW_API
,
5672 .ap_rxd_ops
= &rxd_ap_ops
,
5676 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
5677 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
5678 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
5679 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
5680 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
5681 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
5682 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API
));
5684 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table
) = {
5685 { PCI_VDEVICE(MARVELL
, 0x2a0a), .driver_data
= MWL8363
, },
5686 { PCI_VDEVICE(MARVELL
, 0x2a0c), .driver_data
= MWL8363
, },
5687 { PCI_VDEVICE(MARVELL
, 0x2a24), .driver_data
= MWL8363
, },
5688 { PCI_VDEVICE(MARVELL
, 0x2a2b), .driver_data
= MWL8687
, },
5689 { PCI_VDEVICE(MARVELL
, 0x2a30), .driver_data
= MWL8687
, },
5690 { PCI_VDEVICE(MARVELL
, 0x2a40), .driver_data
= MWL8366
, },
5691 { PCI_VDEVICE(MARVELL
, 0x2a41), .driver_data
= MWL8366
, },
5692 { PCI_VDEVICE(MARVELL
, 0x2a42), .driver_data
= MWL8366
, },
5693 { PCI_VDEVICE(MARVELL
, 0x2a43), .driver_data
= MWL8366
, },
5694 { PCI_VDEVICE(MARVELL
, 0x2b36), .driver_data
= MWL8764
, },
5697 MODULE_DEVICE_TABLE(pci
, mwl8k_pci_id_table
);
5699 static int mwl8k_request_alt_fw(struct mwl8k_priv
*priv
)
5702 printk(KERN_ERR
"%s: Error requesting preferred fw %s.\n"
5703 "Trying alternative firmware %s\n", pci_name(priv
->pdev
),
5704 priv
->fw_pref
, priv
->fw_alt
);
5705 rc
= mwl8k_request_fw(priv
, priv
->fw_alt
, &priv
->fw_ucode
, true);
5707 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5708 pci_name(priv
->pdev
), priv
->fw_alt
);
5714 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
);
5715 static void mwl8k_fw_state_machine(const struct firmware
*fw
, void *context
)
5717 struct mwl8k_priv
*priv
= context
;
5718 struct mwl8k_device_info
*di
= priv
->device_info
;
5721 switch (priv
->fw_state
) {
5724 printk(KERN_ERR
"%s: Error requesting helper fw %s\n",
5725 pci_name(priv
->pdev
), di
->helper_image
);
5728 priv
->fw_helper
= fw
;
5729 rc
= mwl8k_request_fw(priv
, priv
->fw_pref
, &priv
->fw_ucode
,
5731 if (rc
&& priv
->fw_alt
) {
5732 rc
= mwl8k_request_alt_fw(priv
);
5735 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5739 priv
->fw_state
= FW_STATE_LOADING_PREF
;
5742 case FW_STATE_LOADING_PREF
:
5745 rc
= mwl8k_request_alt_fw(priv
);
5748 priv
->fw_state
= FW_STATE_LOADING_ALT
;
5752 priv
->fw_ucode
= fw
;
5753 rc
= mwl8k_firmware_load_success(priv
);
5757 complete(&priv
->firmware_loading_complete
);
5761 case FW_STATE_LOADING_ALT
:
5763 printk(KERN_ERR
"%s: Error requesting alt fw %s\n",
5764 pci_name(priv
->pdev
), di
->helper_image
);
5767 priv
->fw_ucode
= fw
;
5768 rc
= mwl8k_firmware_load_success(priv
);
5772 complete(&priv
->firmware_loading_complete
);
5776 printk(KERN_ERR
"%s: Unexpected firmware loading state: %d\n",
5777 MWL8K_NAME
, priv
->fw_state
);
5784 priv
->fw_state
= FW_STATE_ERROR
;
5785 complete(&priv
->firmware_loading_complete
);
5786 device_release_driver(&priv
->pdev
->dev
);
5787 mwl8k_release_firmware(priv
);
5790 #define MAX_RESTART_ATTEMPTS 1
5791 static int mwl8k_init_firmware(struct ieee80211_hw
*hw
, char *fw_image
,
5794 struct mwl8k_priv
*priv
= hw
->priv
;
5796 int count
= MAX_RESTART_ATTEMPTS
;
5799 /* Reset firmware and hardware */
5800 mwl8k_hw_reset(priv
);
5802 /* Ask userland hotplug daemon for the device firmware */
5803 rc
= mwl8k_request_firmware(priv
, fw_image
, nowait
);
5805 wiphy_err(hw
->wiphy
, "Firmware files not found\n");
5812 /* Load firmware into hardware */
5813 rc
= mwl8k_load_firmware(hw
);
5815 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
5817 /* Reclaim memory once firmware is successfully loaded */
5818 mwl8k_release_firmware(priv
);
5821 /* FW did not start successfully;
5822 * lets try one more time
5825 wiphy_err(hw
->wiphy
, "Trying to reload the firmware again\n");
5833 static int mwl8k_init_txqs(struct ieee80211_hw
*hw
)
5835 struct mwl8k_priv
*priv
= hw
->priv
;
5839 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++) {
5840 rc
= mwl8k_txq_init(hw
, i
);
5844 iowrite32(priv
->txq
[i
].txd_dma
,
5845 priv
->sram
+ priv
->txq_offset
[i
]);
5850 /* initialize hw after successfully loading a firmware image */
5851 static int mwl8k_probe_hw(struct ieee80211_hw
*hw
)
5853 struct mwl8k_priv
*priv
= hw
->priv
;
5858 priv
->rxd_ops
= priv
->device_info
->ap_rxd_ops
;
5859 if (priv
->rxd_ops
== NULL
) {
5860 wiphy_err(hw
->wiphy
,
5861 "Driver does not have AP firmware image support for this hardware\n");
5863 goto err_stop_firmware
;
5866 priv
->rxd_ops
= &rxd_sta_ops
;
5869 priv
->sniffer_enabled
= false;
5870 priv
->wmm_enabled
= false;
5871 priv
->pending_tx_pkts
= 0;
5872 atomic_set(&priv
->watchdog_event_pending
, 0);
5874 rc
= mwl8k_rxq_init(hw
, 0);
5876 goto err_stop_firmware
;
5877 rxq_refill(hw
, 0, INT_MAX
);
5879 /* For the sta firmware, we need to know the dma addresses of tx queues
5880 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5881 * prior to issuing this command. But for the AP case, we learn the
5882 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5883 * case we must initialize the tx queues after.
5885 priv
->num_ampdu_queues
= 0;
5887 rc
= mwl8k_init_txqs(hw
);
5889 goto err_free_queues
;
5892 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
5893 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5894 iowrite32(MWL8K_A2H_INT_TX_DONE
|MWL8K_A2H_INT_RX_READY
|
5895 MWL8K_A2H_INT_BA_WATCHDOG
,
5896 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL
);
5897 iowrite32(MWL8K_A2H_INT_OPC_DONE
,
5898 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
5900 rc
= request_irq(priv
->pdev
->irq
, mwl8k_interrupt
,
5901 IRQF_SHARED
, MWL8K_NAME
, hw
);
5903 wiphy_err(hw
->wiphy
, "failed to register IRQ handler\n");
5904 goto err_free_queues
;
5908 * When hw restart is requested,
5909 * mac80211 will take care of clearing
5910 * the ampdu streams, so do not clear
5911 * the ampdu state here
5913 if (!priv
->hw_restart_in_progress
)
5914 memset(priv
->ampdu
, 0, sizeof(priv
->ampdu
));
5917 * Temporarily enable interrupts. Initial firmware host
5918 * commands use interrupts and avoid polling. Disable
5919 * interrupts when done.
5921 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5923 /* Get config data, mac addrs etc */
5925 rc
= mwl8k_cmd_get_hw_spec_ap(hw
);
5927 rc
= mwl8k_init_txqs(hw
);
5929 rc
= mwl8k_cmd_set_hw_spec(hw
);
5931 rc
= mwl8k_cmd_get_hw_spec_sta(hw
);
5934 wiphy_err(hw
->wiphy
, "Cannot initialise firmware\n");
5938 /* Turn radio off */
5939 rc
= mwl8k_cmd_radio_disable(hw
);
5941 wiphy_err(hw
->wiphy
, "Cannot disable\n");
5945 /* Clear MAC address */
5946 rc
= mwl8k_cmd_set_mac_addr(hw
, NULL
, "\x00\x00\x00\x00\x00\x00");
5948 wiphy_err(hw
->wiphy
, "Cannot clear MAC address\n");
5952 /* Configure Antennas */
5953 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_RX
, 0x3);
5955 wiphy_warn(hw
->wiphy
, "failed to set # of RX antennas");
5956 rc
= mwl8k_cmd_rf_antenna(hw
, MWL8K_RF_ANTENNA_TX
, 0x7);
5958 wiphy_warn(hw
->wiphy
, "failed to set # of TX antennas");
5961 /* Disable interrupts */
5962 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5963 free_irq(priv
->pdev
->irq
, hw
);
5965 wiphy_info(hw
->wiphy
, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5966 priv
->device_info
->part_name
,
5967 priv
->hw_rev
, hw
->wiphy
->perm_addr
,
5968 priv
->ap_fw
? "AP" : "STA",
5969 (priv
->fw_rev
>> 24) & 0xff, (priv
->fw_rev
>> 16) & 0xff,
5970 (priv
->fw_rev
>> 8) & 0xff, priv
->fw_rev
& 0xff);
5975 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
5976 free_irq(priv
->pdev
->irq
, hw
);
5979 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
5980 mwl8k_txq_deinit(hw
, i
);
5981 mwl8k_rxq_deinit(hw
, 0);
5984 mwl8k_hw_reset(priv
);
5990 * invoke mwl8k_reload_firmware to change the firmware image after the device
5991 * has already been registered
5993 static int mwl8k_reload_firmware(struct ieee80211_hw
*hw
, char *fw_image
)
5996 struct mwl8k_priv
*priv
= hw
->priv
;
5997 struct mwl8k_vif
*vif
, *tmp_vif
;
6000 mwl8k_rxq_deinit(hw
, 0);
6003 * All the existing interfaces are re-added by the ieee80211_reconfig;
6004 * which means driver should remove existing interfaces before calling
6005 * ieee80211_restart_hw
6007 if (priv
->hw_restart_in_progress
)
6008 list_for_each_entry_safe(vif
, tmp_vif
, &priv
->vif_list
, list
)
6009 mwl8k_remove_vif(priv
, vif
);
6011 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
6012 mwl8k_txq_deinit(hw
, i
);
6014 rc
= mwl8k_init_firmware(hw
, fw_image
, false);
6018 rc
= mwl8k_probe_hw(hw
);
6022 if (priv
->hw_restart_in_progress
)
6025 rc
= mwl8k_start(hw
);
6029 rc
= mwl8k_config(hw
, ~0);
6033 for (i
= 0; i
< MWL8K_TX_WMM_QUEUES
; i
++) {
6034 rc
= mwl8k_conf_tx(hw
, NULL
, i
, &priv
->wmm_params
[i
]);
6042 printk(KERN_WARNING
"mwl8k: Failed to reload firmware image.\n");
6046 static const struct ieee80211_iface_limit ap_if_limits
[] = {
6047 { .max
= 8, .types
= BIT(NL80211_IFTYPE_AP
) },
6048 { .max
= 1, .types
= BIT(NL80211_IFTYPE_STATION
) },
6051 static const struct ieee80211_iface_combination ap_if_comb
= {
6052 .limits
= ap_if_limits
,
6053 .n_limits
= ARRAY_SIZE(ap_if_limits
),
6054 .max_interfaces
= 8,
6055 .num_different_channels
= 1,
6059 static int mwl8k_firmware_load_success(struct mwl8k_priv
*priv
)
6061 struct ieee80211_hw
*hw
= priv
->hw
;
6064 rc
= mwl8k_load_firmware(hw
);
6065 mwl8k_release_firmware(priv
);
6067 wiphy_err(hw
->wiphy
, "Cannot start firmware\n");
6072 * Extra headroom is the size of the required DMA header
6073 * minus the size of the smallest 802.11 frame (CTS frame).
6075 hw
->extra_tx_headroom
=
6076 sizeof(struct mwl8k_dma_data
) - sizeof(struct ieee80211_cts
);
6078 hw
->extra_tx_headroom
-= priv
->ap_fw
? REDUCED_TX_HEADROOM
: 0;
6080 hw
->queues
= MWL8K_TX_WMM_QUEUES
;
6082 /* Set rssi values to dBm */
6083 hw
->flags
|= IEEE80211_HW_SIGNAL_DBM
| IEEE80211_HW_HAS_RATE_CONTROL
;
6086 * Ask mac80211 to not to trigger PS mode
6087 * based on PM bit of incoming frames.
6090 hw
->flags
|= IEEE80211_HW_AP_LINK_PS
;
6092 hw
->vif_data_size
= sizeof(struct mwl8k_vif
);
6093 hw
->sta_data_size
= sizeof(struct mwl8k_sta
);
6095 priv
->macids_used
= 0;
6096 INIT_LIST_HEAD(&priv
->vif_list
);
6098 /* Set default radio state and preamble */
6099 priv
->radio_on
= false;
6100 priv
->radio_short_preamble
= false;
6102 /* Finalize join worker */
6103 INIT_WORK(&priv
->finalize_join_worker
, mwl8k_finalize_join_worker
);
6104 /* Handle watchdog ba events */
6105 INIT_WORK(&priv
->watchdog_ba_handle
, mwl8k_watchdog_ba_events
);
6106 /* To reload the firmware if it crashes */
6107 INIT_WORK(&priv
->fw_reload
, mwl8k_hw_restart_work
);
6109 /* TX reclaim and RX tasklets. */
6110 tasklet_init(&priv
->poll_tx_task
, mwl8k_tx_poll
, (unsigned long)hw
);
6111 tasklet_disable(&priv
->poll_tx_task
);
6112 tasklet_init(&priv
->poll_rx_task
, mwl8k_rx_poll
, (unsigned long)hw
);
6113 tasklet_disable(&priv
->poll_rx_task
);
6115 /* Power management cookie */
6116 priv
->cookie
= pci_alloc_consistent(priv
->pdev
, 4, &priv
->cookie_dma
);
6117 if (priv
->cookie
== NULL
)
6120 mutex_init(&priv
->fw_mutex
);
6121 priv
->fw_mutex_owner
= NULL
;
6122 priv
->fw_mutex_depth
= 0;
6123 priv
->hostcmd_wait
= NULL
;
6125 spin_lock_init(&priv
->tx_lock
);
6127 spin_lock_init(&priv
->stream_lock
);
6129 priv
->tx_wait
= NULL
;
6131 rc
= mwl8k_probe_hw(hw
);
6133 goto err_free_cookie
;
6135 hw
->wiphy
->interface_modes
= 0;
6137 if (priv
->ap_macids_supported
|| priv
->device_info
->fw_image_ap
) {
6138 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_AP
);
6139 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
6140 hw
->wiphy
->iface_combinations
= &ap_if_comb
;
6141 hw
->wiphy
->n_iface_combinations
= 1;
6144 if (priv
->sta_macids_supported
|| priv
->device_info
->fw_image_sta
)
6145 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_STATION
);
6147 rc
= ieee80211_register_hw(hw
);
6149 wiphy_err(hw
->wiphy
, "Cannot register device\n");
6150 goto err_unprobe_hw
;
6156 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
6157 mwl8k_txq_deinit(hw
, i
);
6158 mwl8k_rxq_deinit(hw
, 0);
6161 if (priv
->cookie
!= NULL
)
6162 pci_free_consistent(priv
->pdev
, 4,
6163 priv
->cookie
, priv
->cookie_dma
);
6167 static int mwl8k_probe(struct pci_dev
*pdev
,
6168 const struct pci_device_id
*id
)
6170 static int printed_version
;
6171 struct ieee80211_hw
*hw
;
6172 struct mwl8k_priv
*priv
;
6173 struct mwl8k_device_info
*di
;
6176 if (!printed_version
) {
6177 printk(KERN_INFO
"%s version %s\n", MWL8K_DESC
, MWL8K_VERSION
);
6178 printed_version
= 1;
6182 rc
= pci_enable_device(pdev
);
6184 printk(KERN_ERR
"%s: Cannot enable new PCI device\n",
6189 rc
= pci_request_regions(pdev
, MWL8K_NAME
);
6191 printk(KERN_ERR
"%s: Cannot obtain PCI resources\n",
6193 goto err_disable_device
;
6196 pci_set_master(pdev
);
6199 hw
= ieee80211_alloc_hw(sizeof(*priv
), &mwl8k_ops
);
6201 printk(KERN_ERR
"%s: ieee80211 alloc failed\n", MWL8K_NAME
);
6206 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
6207 pci_set_drvdata(pdev
, hw
);
6212 priv
->device_info
= &mwl8k_info_tbl
[id
->driver_data
];
6214 if (id
->driver_data
== MWL8764
)
6215 priv
->is_8764
= true;
6217 priv
->sram
= pci_iomap(pdev
, 0, 0x10000);
6218 if (priv
->sram
== NULL
) {
6219 wiphy_err(hw
->wiphy
, "Cannot map device SRAM\n");
6225 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
6226 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
6228 priv
->regs
= pci_iomap(pdev
, 1, 0x10000);
6229 if (priv
->regs
== NULL
) {
6230 priv
->regs
= pci_iomap(pdev
, 2, 0x10000);
6231 if (priv
->regs
== NULL
) {
6232 wiphy_err(hw
->wiphy
, "Cannot map device registers\n");
6239 * Choose the initial fw image depending on user input. If a second
6240 * image is available, make it the alternative image that will be
6241 * loaded if the first one fails.
6243 init_completion(&priv
->firmware_loading_complete
);
6244 di
= priv
->device_info
;
6245 if (ap_mode_default
&& di
->fw_image_ap
) {
6246 priv
->fw_pref
= di
->fw_image_ap
;
6247 priv
->fw_alt
= di
->fw_image_sta
;
6248 } else if (!ap_mode_default
&& di
->fw_image_sta
) {
6249 priv
->fw_pref
= di
->fw_image_sta
;
6250 priv
->fw_alt
= di
->fw_image_ap
;
6251 } else if (ap_mode_default
&& !di
->fw_image_ap
&& di
->fw_image_sta
) {
6252 printk(KERN_WARNING
"AP fw is unavailable. Using STA fw.");
6253 priv
->fw_pref
= di
->fw_image_sta
;
6254 } else if (!ap_mode_default
&& !di
->fw_image_sta
&& di
->fw_image_ap
) {
6255 printk(KERN_WARNING
"STA fw is unavailable. Using AP fw.");
6256 priv
->fw_pref
= di
->fw_image_ap
;
6258 rc
= mwl8k_init_firmware(hw
, priv
->fw_pref
, true);
6260 goto err_stop_firmware
;
6262 priv
->hw_restart_in_progress
= false;
6264 priv
->running_bsses
= 0;
6269 mwl8k_hw_reset(priv
);
6272 if (priv
->regs
!= NULL
)
6273 pci_iounmap(pdev
, priv
->regs
);
6275 if (priv
->sram
!= NULL
)
6276 pci_iounmap(pdev
, priv
->sram
);
6278 ieee80211_free_hw(hw
);
6281 pci_release_regions(pdev
);
6284 pci_disable_device(pdev
);
6289 static void mwl8k_remove(struct pci_dev
*pdev
)
6291 struct ieee80211_hw
*hw
= pci_get_drvdata(pdev
);
6292 struct mwl8k_priv
*priv
;
6299 wait_for_completion(&priv
->firmware_loading_complete
);
6301 if (priv
->fw_state
== FW_STATE_ERROR
) {
6302 mwl8k_hw_reset(priv
);
6306 ieee80211_stop_queues(hw
);
6308 ieee80211_unregister_hw(hw
);
6310 /* Remove TX reclaim and RX tasklets. */
6311 tasklet_kill(&priv
->poll_tx_task
);
6312 tasklet_kill(&priv
->poll_rx_task
);
6315 mwl8k_hw_reset(priv
);
6317 /* Return all skbs to mac80211 */
6318 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
6319 mwl8k_txq_reclaim(hw
, i
, INT_MAX
, 1);
6321 for (i
= 0; i
< mwl8k_tx_queues(priv
); i
++)
6322 mwl8k_txq_deinit(hw
, i
);
6324 mwl8k_rxq_deinit(hw
, 0);
6326 pci_free_consistent(priv
->pdev
, 4, priv
->cookie
, priv
->cookie_dma
);
6329 pci_iounmap(pdev
, priv
->regs
);
6330 pci_iounmap(pdev
, priv
->sram
);
6331 ieee80211_free_hw(hw
);
6332 pci_release_regions(pdev
);
6333 pci_disable_device(pdev
);
6336 static struct pci_driver mwl8k_driver
= {
6338 .id_table
= mwl8k_pci_id_table
,
6339 .probe
= mwl8k_probe
,
6340 .remove
= mwl8k_remove
,
6343 module_pci_driver(mwl8k_driver
);
6345 MODULE_DESCRIPTION(MWL8K_DESC
);
6346 MODULE_VERSION(MWL8K_VERSION
);
6347 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
6348 MODULE_LICENSE("GPL");