2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/spinlock.h>
16 #include <linux/list.h>
17 #include <linux/pci.h>
18 #include <linux/delay.h>
19 #include <linux/completion.h>
20 #include <linux/etherdevice.h>
21 #include <net/mac80211.h>
22 #include <linux/moduleparam.h>
23 #include <linux/firmware.h>
24 #include <linux/workqueue.h>
26 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
27 #define MWL8K_NAME KBUILD_MODNAME
28 #define MWL8K_VERSION "0.9.1"
30 MODULE_DESCRIPTION(MWL8K_DESC
);
31 MODULE_VERSION(MWL8K_VERSION
);
32 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
33 MODULE_LICENSE("GPL");
35 static DEFINE_PCI_DEVICE_TABLE(mwl8k_table
) = {
36 { PCI_VDEVICE(MARVELL
, 0x2a2b), .driver_data
= 8687, },
37 { PCI_VDEVICE(MARVELL
, 0x2a30), .driver_data
= 8687, },
40 MODULE_DEVICE_TABLE(pci
, mwl8k_table
);
42 /* Register definitions */
43 #define MWL8K_HIU_GEN_PTR 0x00000c10
44 #define MWL8K_MODE_STA 0x0000005a
45 #define MWL8K_MODE_AP 0x000000a5
46 #define MWL8K_HIU_INT_CODE 0x00000c14
47 #define MWL8K_FWSTA_READY 0xf0f1f2f4
48 #define MWL8K_FWAP_READY 0xf1f2f4a5
49 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
50 #define MWL8K_HIU_SCRATCH 0x00000c40
52 /* Host->device communications */
53 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
54 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
55 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
56 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
57 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
58 #define MWL8K_H2A_INT_DUMMY (1 << 20)
59 #define MWL8K_H2A_INT_RESET (1 << 15)
60 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
61 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
63 /* Device->host communications */
64 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
65 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
66 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
67 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
68 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
69 #define MWL8K_A2H_INT_DUMMY (1 << 20)
70 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
71 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
72 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
73 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
74 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
75 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
76 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
77 #define MWL8K_A2H_INT_RX_READY (1 << 1)
78 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
80 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
81 MWL8K_A2H_INT_CHNL_SWITCHED | \
82 MWL8K_A2H_INT_QUEUE_EMPTY | \
83 MWL8K_A2H_INT_RADAR_DETECT | \
84 MWL8K_A2H_INT_RADIO_ON | \
85 MWL8K_A2H_INT_RADIO_OFF | \
86 MWL8K_A2H_INT_MAC_EVENT | \
87 MWL8K_A2H_INT_OPC_DONE | \
88 MWL8K_A2H_INT_RX_READY | \
89 MWL8K_A2H_INT_TX_DONE)
91 /* WME stream classes */
92 #define WME_AC_BE 0 /* best effort */
93 #define WME_AC_BK 1 /* background */
94 #define WME_AC_VI 2 /* video */
95 #define WME_AC_VO 3 /* voice */
97 #define MWL8K_RX_QUEUES 1
98 #define MWL8K_TX_QUEUES 4
100 struct mwl8k_rx_queue
{
103 /* hw receives here */
106 /* refill descs here */
109 struct mwl8k_rx_desc
*rx_desc_area
;
110 dma_addr_t rx_desc_dma
;
111 struct sk_buff
**rx_skb
;
116 * The DMA engine requires a modification to the payload.
117 * If the skbuff is shared/cloned, it needs to be unshared.
118 * This method is used to ensure the stack always gets back
119 * the skbuff it sent for transmission.
121 struct sk_buff
*clone
;
125 struct mwl8k_tx_queue
{
126 /* hw transmits here */
129 /* sw appends here */
132 struct ieee80211_tx_queue_stats tx_stats
;
133 struct mwl8k_tx_desc
*tx_desc_area
;
134 dma_addr_t tx_desc_dma
;
135 struct mwl8k_skb
*tx_skb
;
138 /* Pointers to the firmware data and meta information about it. */
139 struct mwl8k_firmware
{
141 struct firmware
*ucode
;
143 /* Boot helper code */
144 struct firmware
*helper
;
149 struct ieee80211_hw
*hw
;
151 struct pci_dev
*pdev
;
153 /* firmware access lock */
156 /* firmware files and meta data */
157 struct mwl8k_firmware fw
;
160 /* lock held over TX and TX reap */
163 struct ieee80211_vif
*vif
;
165 struct ieee80211_channel
*current_channel
;
167 /* power management status cookie from firmware */
169 dma_addr_t cookie_dma
;
176 * Running count of TX packets in flight, to avoid
177 * iterating over the transmit rings each time.
181 struct mwl8k_rx_queue rxq
[MWL8K_RX_QUEUES
];
182 struct mwl8k_tx_queue txq
[MWL8K_TX_QUEUES
];
185 struct ieee80211_supported_band band
;
186 struct ieee80211_channel channels
[14];
187 struct ieee80211_rate rates
[12];
191 /* RF preamble: Short, Long or Auto */
194 /* WMM MODE 1 for enabled; 0 for disabled */
197 /* Set if PHY config is in progress */
200 /* XXX need to convert this to handle multiple interfaces */
202 u8 capture_bssid
[ETH_ALEN
];
203 struct sk_buff
*beacon_skb
;
206 * This FJ worker has to be global as it is scheduled from the
207 * RX handler. At this point we don't know which interface it
208 * belongs to until the list of bssids waiting to complete join
211 struct work_struct finalize_join_worker
;
213 /* Tasklet to reclaim TX descriptors and buffers after tx */
214 struct tasklet_struct tx_reclaim_task
;
216 /* Work thread to serialize configuration requests */
217 struct workqueue_struct
*config_wq
;
218 struct completion
*hostcmd_wait
;
219 struct completion
*tx_wait
;
222 /* Per interface specific private data */
224 /* backpointer to parent config block */
225 struct mwl8k_priv
*priv
;
227 /* BSS config of AP or IBSS from mac80211*/
228 struct ieee80211_bss_conf bss_info
;
230 /* BSSID of AP or IBSS */
232 u8 mac_addr
[ETH_ALEN
];
235 * Subset of supported legacy rates.
236 * Intersection of AP and STA supported rates.
238 struct ieee80211_rate legacy_rates
[12];
240 /* number of supported legacy rates */
243 /* Index into station database.Returned by update_sta_db call */
246 /* Non AMPDU sequence number assigned by driver */
250 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
252 static const struct ieee80211_channel mwl8k_channels
[] = {
253 { .center_freq
= 2412, .hw_value
= 1, },
254 { .center_freq
= 2417, .hw_value
= 2, },
255 { .center_freq
= 2422, .hw_value
= 3, },
256 { .center_freq
= 2427, .hw_value
= 4, },
257 { .center_freq
= 2432, .hw_value
= 5, },
258 { .center_freq
= 2437, .hw_value
= 6, },
259 { .center_freq
= 2442, .hw_value
= 7, },
260 { .center_freq
= 2447, .hw_value
= 8, },
261 { .center_freq
= 2452, .hw_value
= 9, },
262 { .center_freq
= 2457, .hw_value
= 10, },
263 { .center_freq
= 2462, .hw_value
= 11, },
266 static const struct ieee80211_rate mwl8k_rates
[] = {
267 { .bitrate
= 10, .hw_value
= 2, },
268 { .bitrate
= 20, .hw_value
= 4, },
269 { .bitrate
= 55, .hw_value
= 11, },
270 { .bitrate
= 60, .hw_value
= 12, },
271 { .bitrate
= 90, .hw_value
= 18, },
272 { .bitrate
= 110, .hw_value
= 22, },
273 { .bitrate
= 120, .hw_value
= 24, },
274 { .bitrate
= 180, .hw_value
= 36, },
275 { .bitrate
= 240, .hw_value
= 48, },
276 { .bitrate
= 360, .hw_value
= 72, },
277 { .bitrate
= 480, .hw_value
= 96, },
278 { .bitrate
= 540, .hw_value
= 108, },
282 #define MWL8K_RADIO_AUTO_PREAMBLE 0x0005
283 #define MWL8K_RADIO_SHORT_PREAMBLE 0x0003
284 #define MWL8K_RADIO_LONG_PREAMBLE 0x0001
287 #define MWL8K_WMM_ENABLE 1
288 #define MWL8K_WMM_DISABLE 0
290 #define MWL8K_RADIO_DEFAULT_PREAMBLE MWL8K_RADIO_LONG_PREAMBLE
294 /* Short Slot: 9us slot time */
295 #define MWL8K_SHORT_SLOTTIME 1
297 /* Long slot: 20us slot time */
298 #define MWL8K_LONG_SLOTTIME 0
300 /* Set or get info from Firmware */
301 #define MWL8K_CMD_SET 0x0001
302 #define MWL8K_CMD_GET 0x0000
304 /* Firmware command codes */
305 #define MWL8K_CMD_CODE_DNLD 0x0001
306 #define MWL8K_CMD_GET_HW_SPEC 0x0003
307 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
308 #define MWL8K_CMD_GET_STAT 0x0014
309 #define MWL8K_CMD_RADIO_CONTROL 0x001c
310 #define MWL8K_CMD_RF_TX_POWER 0x001e
311 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
312 #define MWL8K_CMD_SET_POST_SCAN 0x0108
313 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
314 #define MWL8K_CMD_SET_AID 0x010d
315 #define MWL8K_CMD_SET_RATE 0x0110
316 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
317 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
318 #define MWL8K_CMD_SET_SLOT 0x0114
319 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
320 #define MWL8K_CMD_SET_WMM_MODE 0x0123
321 #define MWL8K_CMD_MIMO_CONFIG 0x0125
322 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
323 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
324 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
325 #define MWL8K_CMD_UPDATE_STADB 0x1123
327 static const char *mwl8k_cmd_name(u16 cmd
, char *buf
, int bufsize
)
329 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
330 snprintf(buf, bufsize, "%s", #x);\
333 switch (cmd
& ~0x8000) {
334 MWL8K_CMDNAME(CODE_DNLD
);
335 MWL8K_CMDNAME(GET_HW_SPEC
);
336 MWL8K_CMDNAME(MAC_MULTICAST_ADR
);
337 MWL8K_CMDNAME(GET_STAT
);
338 MWL8K_CMDNAME(RADIO_CONTROL
);
339 MWL8K_CMDNAME(RF_TX_POWER
);
340 MWL8K_CMDNAME(SET_PRE_SCAN
);
341 MWL8K_CMDNAME(SET_POST_SCAN
);
342 MWL8K_CMDNAME(SET_RF_CHANNEL
);
343 MWL8K_CMDNAME(SET_AID
);
344 MWL8K_CMDNAME(SET_RATE
);
345 MWL8K_CMDNAME(SET_FINALIZE_JOIN
);
346 MWL8K_CMDNAME(RTS_THRESHOLD
);
347 MWL8K_CMDNAME(SET_SLOT
);
348 MWL8K_CMDNAME(SET_EDCA_PARAMS
);
349 MWL8K_CMDNAME(SET_WMM_MODE
);
350 MWL8K_CMDNAME(MIMO_CONFIG
);
351 MWL8K_CMDNAME(USE_FIXED_RATE
);
352 MWL8K_CMDNAME(ENABLE_SNIFFER
);
353 MWL8K_CMDNAME(SET_RATEADAPT_MODE
);
354 MWL8K_CMDNAME(UPDATE_STADB
);
356 snprintf(buf
, bufsize
, "0x%x", cmd
);
363 /* Hardware and firmware reset */
364 static void mwl8k_hw_reset(struct mwl8k_priv
*priv
)
366 iowrite32(MWL8K_H2A_INT_RESET
,
367 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
368 iowrite32(MWL8K_H2A_INT_RESET
,
369 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
373 /* Release fw image */
374 static void mwl8k_release_fw(struct firmware
**fw
)
378 release_firmware(*fw
);
382 static void mwl8k_release_firmware(struct mwl8k_priv
*priv
)
384 mwl8k_release_fw(&priv
->fw
.ucode
);
385 mwl8k_release_fw(&priv
->fw
.helper
);
388 /* Request fw image */
389 static int mwl8k_request_fw(struct mwl8k_priv
*priv
,
390 const char *fname
, struct firmware
**fw
)
392 /* release current image */
394 mwl8k_release_fw(fw
);
396 return request_firmware((const struct firmware
**)fw
,
397 fname
, &priv
->pdev
->dev
);
400 static int mwl8k_request_firmware(struct mwl8k_priv
*priv
, u32 part_num
)
405 priv
->part_num
= part_num
;
407 snprintf(filename
, sizeof(filename
),
408 "mwl8k/helper_%u.fw", priv
->part_num
);
410 rc
= mwl8k_request_fw(priv
, filename
, &priv
->fw
.helper
);
413 "%s Error requesting helper firmware file %s\n",
414 pci_name(priv
->pdev
), filename
);
418 snprintf(filename
, sizeof(filename
),
419 "mwl8k/fmimage_%u.fw", priv
->part_num
);
421 rc
= mwl8k_request_fw(priv
, filename
, &priv
->fw
.ucode
);
423 printk(KERN_ERR
"%s Error requesting firmware file %s\n",
424 pci_name(priv
->pdev
), filename
);
425 mwl8k_release_fw(&priv
->fw
.helper
);
432 struct mwl8k_cmd_pkt
{
438 } __attribute__((packed
));
444 mwl8k_send_fw_load_cmd(struct mwl8k_priv
*priv
, void *data
, int length
)
446 void __iomem
*regs
= priv
->regs
;
451 dma_addr
= pci_map_single(priv
->pdev
, data
, length
, PCI_DMA_TODEVICE
);
452 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
455 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
456 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
457 iowrite32(MWL8K_H2A_INT_DOORBELL
,
458 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
459 iowrite32(MWL8K_H2A_INT_DUMMY
,
460 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
467 int_code
= ioread32(regs
+ MWL8K_HIU_INT_CODE
);
468 if (int_code
== MWL8K_INT_CODE_CMD_FINISHED
) {
469 iowrite32(0, regs
+ MWL8K_HIU_INT_CODE
);
477 pci_unmap_single(priv
->pdev
, dma_addr
, length
, PCI_DMA_TODEVICE
);
480 * Clear 'command done' interrupt bit.
486 status
= ioread32(priv
->regs
+
487 MWL8K_HIU_A2H_INTERRUPT_STATUS
);
488 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
489 iowrite32(~MWL8K_A2H_INT_OPC_DONE
,
490 priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
491 ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
501 static int mwl8k_load_fw_image(struct mwl8k_priv
*priv
,
502 const u8
*data
, size_t length
)
504 struct mwl8k_cmd_pkt
*cmd
;
508 cmd
= kmalloc(sizeof(*cmd
) + 256, GFP_KERNEL
);
512 cmd
->code
= cpu_to_le16(MWL8K_CMD_CODE_DNLD
);
518 int block_size
= length
> 256 ? 256 : length
;
520 memcpy(cmd
->payload
, data
+ done
, block_size
);
521 cmd
->length
= cpu_to_le16(block_size
);
523 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
,
524 sizeof(*cmd
) + block_size
);
529 length
-= block_size
;
534 rc
= mwl8k_send_fw_load_cmd(priv
, cmd
, sizeof(*cmd
));
542 static int mwl8k_feed_fw_image(struct mwl8k_priv
*priv
,
543 const u8
*data
, size_t length
)
545 unsigned char *buffer
;
546 int may_continue
, rc
= 0;
547 u32 done
, prev_block_size
;
549 buffer
= kmalloc(1024, GFP_KERNEL
);
556 while (may_continue
> 0) {
559 block_size
= ioread32(priv
->regs
+ MWL8K_HIU_SCRATCH
);
560 if (block_size
& 1) {
564 done
+= prev_block_size
;
565 length
-= prev_block_size
;
568 if (block_size
> 1024 || block_size
> length
) {
578 if (block_size
== 0) {
585 prev_block_size
= block_size
;
586 memcpy(buffer
, data
+ done
, block_size
);
588 rc
= mwl8k_send_fw_load_cmd(priv
, buffer
, block_size
);
593 if (!rc
&& length
!= 0)
601 static int mwl8k_load_firmware(struct mwl8k_priv
*priv
)
605 const u8
*ucode
= priv
->fw
.ucode
->data
;
606 size_t ucode_len
= priv
->fw
.ucode
->size
;
607 const u8
*helper
= priv
->fw
.helper
->data
;
608 size_t helper_len
= priv
->fw
.helper
->size
;
610 if (!memcmp(ucode
, "\x01\x00\x00\x00", 4)) {
611 rc
= mwl8k_load_fw_image(priv
, helper
, helper_len
);
613 printk(KERN_ERR
"%s: unable to load firmware "
614 "helper image\n", pci_name(priv
->pdev
));
619 rc
= mwl8k_feed_fw_image(priv
, ucode
, ucode_len
);
621 rc
= mwl8k_load_fw_image(priv
, ucode
, ucode_len
);
625 printk(KERN_ERR
"%s: unable to load firmware data\n",
626 pci_name(priv
->pdev
));
630 iowrite32(MWL8K_MODE_STA
, priv
->regs
+ MWL8K_HIU_GEN_PTR
);
635 if (ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
)
636 == MWL8K_FWSTA_READY
)
641 return loops
? 0 : -ETIMEDOUT
;
646 * Defines shared between transmission and reception.
648 /* HT control fields for firmware */
653 } __attribute__((packed
));
655 /* Firmware Station database operations */
656 #define MWL8K_STA_DB_ADD_ENTRY 0
657 #define MWL8K_STA_DB_MODIFY_ENTRY 1
658 #define MWL8K_STA_DB_DEL_ENTRY 2
659 #define MWL8K_STA_DB_FLUSH 3
661 /* Peer Entry flags - used to define the type of the peer node */
662 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
664 #define MWL8K_IEEE_LEGACY_DATA_RATES 12
665 #define MWL8K_MCS_BITMAP_SIZE 16
667 struct peer_capability_info
{
668 /* Peer type - AP vs. STA. */
671 /* Basic 802.11 capabilities from assoc resp. */
674 /* Set if peer supports 802.11n high throughput (HT). */
677 /* Valid if HT is supported. */
679 __u8 extended_ht_caps
;
680 struct ewc_ht_info ewc_info
;
682 /* Legacy rate table. Intersection of our rates and peer rates. */
683 __u8 legacy_rates
[MWL8K_IEEE_LEGACY_DATA_RATES
];
685 /* HT rate table. Intersection of our rates and peer rates. */
686 __u8 ht_rates
[MWL8K_MCS_BITMAP_SIZE
];
689 /* If set, interoperability mode, no proprietary extensions. */
693 __le16 amsdu_enabled
;
694 } __attribute__((packed
));
696 /* Inline functions to manipulate QoS field in data descriptor. */
697 static inline u16
mwl8k_qos_setbit_eosp(u16 qos
)
699 u16 val_mask
= 1 << 4;
701 /* End of Service Period Bit 4 */
702 return qos
| val_mask
;
705 static inline u16
mwl8k_qos_setbit_ack(u16 qos
, u8 ack_policy
)
709 u16 qos_mask
= ~(val_mask
<< shift
);
711 /* Ack Policy Bit 5-6 */
712 return (qos
& qos_mask
) | ((ack_policy
& val_mask
) << shift
);
715 static inline u16
mwl8k_qos_setbit_amsdu(u16 qos
)
717 u16 val_mask
= 1 << 7;
719 /* AMSDU present Bit 7 */
720 return qos
| val_mask
;
723 static inline u16
mwl8k_qos_setbit_qlen(u16 qos
, u8 len
)
727 u16 qos_mask
= ~(val_mask
<< shift
);
729 /* Queue Length Bits 8-15 */
730 return (qos
& qos_mask
) | ((len
& val_mask
) << shift
);
733 /* DMA header used by firmware and hardware. */
734 struct mwl8k_dma_data
{
736 struct ieee80211_hdr wh
;
737 } __attribute__((packed
));
739 /* Routines to add/remove DMA header from skb. */
740 static inline int mwl8k_remove_dma_header(struct sk_buff
*skb
)
742 struct mwl8k_dma_data
*tr
= (struct mwl8k_dma_data
*)(skb
->data
);
743 void *dst
, *src
= &tr
->wh
;
744 __le16 fc
= tr
->wh
.frame_control
;
745 int hdrlen
= ieee80211_hdrlen(fc
);
746 u16 space
= sizeof(struct mwl8k_dma_data
) - hdrlen
;
748 dst
= (void *)tr
+ space
;
750 memmove(dst
, src
, hdrlen
);
751 skb_pull(skb
, space
);
757 static inline struct sk_buff
*mwl8k_add_dma_header(struct sk_buff
*skb
)
759 struct ieee80211_hdr
*wh
;
761 struct mwl8k_dma_data
*tr
;
763 wh
= (struct ieee80211_hdr
*)skb
->data
;
764 hdrlen
= ieee80211_hdrlen(wh
->frame_control
);
768 * Copy up/down the 802.11 header; the firmware requires
769 * we present a 2-byte payload length followed by a
770 * 4-address header (w/o QoS), followed (optionally) by
771 * any WEP/ExtIV header (but only filled in for CCMP).
773 if (hdrlen
!= sizeof(struct mwl8k_dma_data
))
774 skb_push(skb
, sizeof(struct mwl8k_dma_data
) - hdrlen
);
776 tr
= (struct mwl8k_dma_data
*)skb
->data
;
778 memmove(&tr
->wh
, wh
, hdrlen
);
781 memset(tr
->wh
.addr4
, 0, ETH_ALEN
);
784 * Firmware length is the length of the fully formed "802.11
785 * payload". That is, everything except for the 802.11 header.
786 * This includes all crypto material including the MIC.
788 tr
->fwlen
= cpu_to_le16(pktlen
- hdrlen
);
797 #define MWL8K_RX_CTRL_OWNED_BY_HOST 0x02
799 struct mwl8k_rx_desc
{
803 __le32 pkt_phys_addr
;
804 __le32 next_rx_desc_phys_addr
;
814 } __attribute__((packed
));
816 #define MWL8K_RX_DESCS 256
817 #define MWL8K_RX_MAXSZ 3800
819 static int mwl8k_rxq_init(struct ieee80211_hw
*hw
, int index
)
821 struct mwl8k_priv
*priv
= hw
->priv
;
822 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
826 rxq
->rx_desc_count
= 0;
830 size
= MWL8K_RX_DESCS
* sizeof(struct mwl8k_rx_desc
);
833 pci_alloc_consistent(priv
->pdev
, size
, &rxq
->rx_desc_dma
);
834 if (rxq
->rx_desc_area
== NULL
) {
835 printk(KERN_ERR
"%s: failed to alloc RX descriptors\n",
839 memset(rxq
->rx_desc_area
, 0, size
);
841 rxq
->rx_skb
= kmalloc(MWL8K_RX_DESCS
*
842 sizeof(*rxq
->rx_skb
), GFP_KERNEL
);
843 if (rxq
->rx_skb
== NULL
) {
844 printk(KERN_ERR
"%s: failed to alloc RX skbuff list\n",
846 pci_free_consistent(priv
->pdev
, size
,
847 rxq
->rx_desc_area
, rxq
->rx_desc_dma
);
850 memset(rxq
->rx_skb
, 0, MWL8K_RX_DESCS
* sizeof(*rxq
->rx_skb
));
852 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
853 struct mwl8k_rx_desc
*rx_desc
;
856 rx_desc
= rxq
->rx_desc_area
+ i
;
857 nexti
= (i
+ 1) % MWL8K_RX_DESCS
;
859 rx_desc
->next_rx_desc_phys_addr
=
860 cpu_to_le32(rxq
->rx_desc_dma
861 + nexti
* sizeof(*rx_desc
));
862 rx_desc
->rx_ctrl
= MWL8K_RX_CTRL_OWNED_BY_HOST
;
868 static int rxq_refill(struct ieee80211_hw
*hw
, int index
, int limit
)
870 struct mwl8k_priv
*priv
= hw
->priv
;
871 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
875 while (rxq
->rx_desc_count
< MWL8K_RX_DESCS
&& limit
--) {
879 skb
= dev_alloc_skb(MWL8K_RX_MAXSZ
);
883 rxq
->rx_desc_count
++;
886 rxq
->rx_tail
= (rx
+ 1) % MWL8K_RX_DESCS
;
888 rxq
->rx_desc_area
[rx
].pkt_phys_addr
=
889 cpu_to_le32(pci_map_single(priv
->pdev
, skb
->data
,
890 MWL8K_RX_MAXSZ
, DMA_FROM_DEVICE
));
892 rxq
->rx_desc_area
[rx
].pkt_len
= cpu_to_le16(MWL8K_RX_MAXSZ
);
893 rxq
->rx_skb
[rx
] = skb
;
895 rxq
->rx_desc_area
[rx
].rx_ctrl
= 0;
903 /* Must be called only when the card's reception is completely halted */
904 static void mwl8k_rxq_deinit(struct ieee80211_hw
*hw
, int index
)
906 struct mwl8k_priv
*priv
= hw
->priv
;
907 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
910 for (i
= 0; i
< MWL8K_RX_DESCS
; i
++) {
911 if (rxq
->rx_skb
[i
] != NULL
) {
914 addr
= le32_to_cpu(rxq
->rx_desc_area
[i
].pkt_phys_addr
);
915 pci_unmap_single(priv
->pdev
, addr
, MWL8K_RX_MAXSZ
,
917 kfree_skb(rxq
->rx_skb
[i
]);
918 rxq
->rx_skb
[i
] = NULL
;
925 pci_free_consistent(priv
->pdev
,
926 MWL8K_RX_DESCS
* sizeof(struct mwl8k_rx_desc
),
927 rxq
->rx_desc_area
, rxq
->rx_desc_dma
);
928 rxq
->rx_desc_area
= NULL
;
933 * Scan a list of BSSIDs to process for finalize join.
934 * Allows for extension to process multiple BSSIDs.
937 mwl8k_capture_bssid(struct mwl8k_priv
*priv
, struct ieee80211_hdr
*wh
)
939 return priv
->capture_beacon
&&
940 ieee80211_is_beacon(wh
->frame_control
) &&
941 !compare_ether_addr(wh
->addr3
, priv
->capture_bssid
);
944 static inline void mwl8k_save_beacon(struct mwl8k_priv
*priv
,
947 priv
->capture_beacon
= false;
948 memset(priv
->capture_bssid
, 0, ETH_ALEN
);
951 * Use GFP_ATOMIC as rxq_process is called from
952 * the primary interrupt handler, memory allocation call
955 priv
->beacon_skb
= skb_copy(skb
, GFP_ATOMIC
);
956 if (priv
->beacon_skb
!= NULL
)
957 queue_work(priv
->config_wq
,
958 &priv
->finalize_join_worker
);
961 static int rxq_process(struct ieee80211_hw
*hw
, int index
, int limit
)
963 struct mwl8k_priv
*priv
= hw
->priv
;
964 struct mwl8k_rx_queue
*rxq
= priv
->rxq
+ index
;
968 while (rxq
->rx_desc_count
&& limit
--) {
969 struct mwl8k_rx_desc
*rx_desc
;
971 struct ieee80211_rx_status status
;
973 struct ieee80211_hdr
*wh
;
975 rx_desc
= rxq
->rx_desc_area
+ rxq
->rx_head
;
976 if (!(rx_desc
->rx_ctrl
& MWL8K_RX_CTRL_OWNED_BY_HOST
))
980 skb
= rxq
->rx_skb
[rxq
->rx_head
];
983 rxq
->rx_skb
[rxq
->rx_head
] = NULL
;
985 rxq
->rx_head
= (rxq
->rx_head
+ 1) % MWL8K_RX_DESCS
;
986 rxq
->rx_desc_count
--;
988 addr
= le32_to_cpu(rx_desc
->pkt_phys_addr
);
989 pci_unmap_single(priv
->pdev
, addr
,
990 MWL8K_RX_MAXSZ
, PCI_DMA_FROMDEVICE
);
992 skb_put(skb
, le16_to_cpu(rx_desc
->pkt_len
));
993 if (mwl8k_remove_dma_header(skb
)) {
998 wh
= (struct ieee80211_hdr
*)skb
->data
;
1001 * Check for pending join operation. save a copy of
1002 * the beacon and schedule a tasklet to send finalize
1003 * join command to the firmware.
1005 if (mwl8k_capture_bssid(priv
, wh
))
1006 mwl8k_save_beacon(priv
, skb
);
1008 memset(&status
, 0, sizeof(status
));
1010 status
.signal
= -rx_desc
->rssi
;
1011 status
.noise
= -rx_desc
->noise_level
;
1012 status
.qual
= rx_desc
->link_quality
;
1014 status
.rate_idx
= 1;
1016 status
.band
= IEEE80211_BAND_2GHZ
;
1017 status
.freq
= ieee80211_channel_to_frequency(rx_desc
->channel
);
1018 memcpy(IEEE80211_SKB_RXCB(skb
), &status
, sizeof(status
));
1019 ieee80211_rx_irqsafe(hw
, skb
);
1029 * Packet transmission.
1032 /* Transmit queue assignment. */
1034 MWL8K_WME_AC_BK
= 0, /* background access */
1035 MWL8K_WME_AC_BE
= 1, /* best effort access */
1036 MWL8K_WME_AC_VI
= 2, /* video access */
1037 MWL8K_WME_AC_VO
= 3, /* voice access */
1040 /* Transmit packet ACK policy */
1041 #define MWL8K_TXD_ACK_POLICY_NORMAL 0
1042 #define MWL8K_TXD_ACK_POLICY_BLOCKACK 3
1044 #define GET_TXQ(_ac) (\
1045 ((_ac) == WME_AC_VO) ? MWL8K_WME_AC_VO : \
1046 ((_ac) == WME_AC_VI) ? MWL8K_WME_AC_VI : \
1047 ((_ac) == WME_AC_BK) ? MWL8K_WME_AC_BK : \
1050 #define MWL8K_TXD_STATUS_OK 0x00000001
1051 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1052 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1053 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1054 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1056 struct mwl8k_tx_desc
{
1061 __le32 pkt_phys_addr
;
1063 __u8 dest_MAC_addr
[ETH_ALEN
];
1064 __le32 next_tx_desc_phys_addr
;
1069 } __attribute__((packed
));
1071 #define MWL8K_TX_DESCS 128
1073 static int mwl8k_txq_init(struct ieee80211_hw
*hw
, int index
)
1075 struct mwl8k_priv
*priv
= hw
->priv
;
1076 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1080 memset(&txq
->tx_stats
, 0, sizeof(struct ieee80211_tx_queue_stats
));
1081 txq
->tx_stats
.limit
= MWL8K_TX_DESCS
;
1085 size
= MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
);
1088 pci_alloc_consistent(priv
->pdev
, size
, &txq
->tx_desc_dma
);
1089 if (txq
->tx_desc_area
== NULL
) {
1090 printk(KERN_ERR
"%s: failed to alloc TX descriptors\n",
1094 memset(txq
->tx_desc_area
, 0, size
);
1096 txq
->tx_skb
= kmalloc(MWL8K_TX_DESCS
* sizeof(*txq
->tx_skb
),
1098 if (txq
->tx_skb
== NULL
) {
1099 printk(KERN_ERR
"%s: failed to alloc TX skbuff list\n",
1101 pci_free_consistent(priv
->pdev
, size
,
1102 txq
->tx_desc_area
, txq
->tx_desc_dma
);
1105 memset(txq
->tx_skb
, 0, MWL8K_TX_DESCS
* sizeof(*txq
->tx_skb
));
1107 for (i
= 0; i
< MWL8K_TX_DESCS
; i
++) {
1108 struct mwl8k_tx_desc
*tx_desc
;
1111 tx_desc
= txq
->tx_desc_area
+ i
;
1112 nexti
= (i
+ 1) % MWL8K_TX_DESCS
;
1114 tx_desc
->status
= 0;
1115 tx_desc
->next_tx_desc_phys_addr
=
1116 cpu_to_le32(txq
->tx_desc_dma
+
1117 nexti
* sizeof(*tx_desc
));
1123 static inline void mwl8k_tx_start(struct mwl8k_priv
*priv
)
1125 iowrite32(MWL8K_H2A_INT_PPA_READY
,
1126 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1127 iowrite32(MWL8K_H2A_INT_DUMMY
,
1128 priv
->regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1129 ioread32(priv
->regs
+ MWL8K_HIU_INT_CODE
);
1132 static inline int mwl8k_txq_busy(struct mwl8k_priv
*priv
)
1134 return priv
->pending_tx_pkts
;
1137 struct mwl8k_txq_info
{
1146 static int mwl8k_scan_tx_ring(struct mwl8k_priv
*priv
,
1147 struct mwl8k_txq_info txinfo
[],
1150 int count
, desc
, status
;
1151 struct mwl8k_tx_queue
*txq
;
1152 struct mwl8k_tx_desc
*tx_desc
;
1155 memset(txinfo
, 0, num_queues
* sizeof(struct mwl8k_txq_info
));
1156 spin_lock_bh(&priv
->tx_lock
);
1157 for (count
= 0; count
< num_queues
; count
++) {
1158 txq
= priv
->txq
+ count
;
1159 txinfo
[count
].len
= txq
->tx_stats
.len
;
1160 txinfo
[count
].head
= txq
->tx_head
;
1161 txinfo
[count
].tail
= txq
->tx_tail
;
1162 for (desc
= 0; desc
< MWL8K_TX_DESCS
; desc
++) {
1163 tx_desc
= txq
->tx_desc_area
+ desc
;
1164 status
= le32_to_cpu(tx_desc
->status
);
1166 if (status
& MWL8K_TXD_STATUS_FW_OWNED
)
1167 txinfo
[count
].fw_owned
++;
1169 txinfo
[count
].drv_owned
++;
1171 if (tx_desc
->pkt_len
== 0)
1172 txinfo
[count
].unused
++;
1175 spin_unlock_bh(&priv
->tx_lock
);
1180 static int mwl8k_tx_wait_empty(struct ieee80211_hw
*hw
, u32 delay_ms
)
1182 struct mwl8k_priv
*priv
= hw
->priv
;
1183 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
1185 unsigned long timeout
;
1189 if (priv
->tx_wait
!= NULL
)
1190 printk(KERN_ERR
"WARNING Previous TXWaitEmpty instance\n");
1192 spin_lock_bh(&priv
->tx_lock
);
1193 count
= mwl8k_txq_busy(priv
);
1195 priv
->tx_wait
= &cmd_wait
;
1197 mwl8k_tx_start(priv
);
1199 spin_unlock_bh(&priv
->tx_lock
);
1202 struct mwl8k_txq_info txinfo
[4];
1206 timeout
= wait_for_completion_timeout(&cmd_wait
,
1207 msecs_to_jiffies(delay_ms
));
1211 spin_lock_bh(&priv
->tx_lock
);
1212 priv
->tx_wait
= NULL
;
1213 newcount
= mwl8k_txq_busy(priv
);
1214 spin_unlock_bh(&priv
->tx_lock
);
1216 printk(KERN_ERR
"%s(%u) TIMEDOUT:%ums Pend:%u-->%u\n",
1217 __func__
, __LINE__
, delay_ms
, count
, newcount
);
1219 mwl8k_scan_tx_ring(priv
, txinfo
, 4);
1220 for (index
= 0; index
< 4; index
++)
1222 "TXQ:%u L:%u H:%u T:%u FW:%u DRV:%u U:%u\n",
1227 txinfo
[index
].fw_owned
,
1228 txinfo
[index
].drv_owned
,
1229 txinfo
[index
].unused
);
1237 #define MWL8K_TXD_SUCCESS(status) \
1238 ((status) & (MWL8K_TXD_STATUS_OK | \
1239 MWL8K_TXD_STATUS_OK_RETRY | \
1240 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1242 static void mwl8k_txq_reclaim(struct ieee80211_hw
*hw
, int index
, int force
)
1244 struct mwl8k_priv
*priv
= hw
->priv
;
1245 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1248 while (txq
->tx_stats
.len
> 0) {
1251 struct mwl8k_tx_desc
*tx_desc
;
1254 struct sk_buff
*skb
;
1255 struct ieee80211_tx_info
*info
;
1260 tx_desc
= txq
->tx_desc_area
+ tx
;
1262 status
= le32_to_cpu(tx_desc
->status
);
1264 if (status
& MWL8K_TXD_STATUS_FW_OWNED
) {
1268 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED
);
1271 txq
->tx_head
= (tx
+ 1) % MWL8K_TX_DESCS
;
1272 BUG_ON(txq
->tx_stats
.len
== 0);
1273 txq
->tx_stats
.len
--;
1274 priv
->pending_tx_pkts
--;
1276 addr
= le32_to_cpu(tx_desc
->pkt_phys_addr
);
1277 size
= le16_to_cpu(tx_desc
->pkt_len
);
1278 skb
= txq
->tx_skb
[tx
].skb
;
1279 txq
->tx_skb
[tx
].skb
= NULL
;
1281 BUG_ON(skb
== NULL
);
1282 pci_unmap_single(priv
->pdev
, addr
, size
, PCI_DMA_TODEVICE
);
1284 rc
= mwl8k_remove_dma_header(skb
);
1286 /* Mark descriptor as unused */
1287 tx_desc
->pkt_phys_addr
= 0;
1288 tx_desc
->pkt_len
= 0;
1290 if (txq
->tx_skb
[tx
].clone
) {
1291 /* Replace with original skb
1292 * before returning to stack
1293 * as buffer has been cloned
1296 skb
= txq
->tx_skb
[tx
].clone
;
1297 txq
->tx_skb
[tx
].clone
= NULL
;
1301 /* Something has gone wrong here.
1302 * Failed to remove DMA header.
1303 * Print error message and drop packet.
1305 printk(KERN_ERR
"%s: Error removing DMA header from "
1306 "tx skb 0x%p.\n", priv
->name
, skb
);
1312 info
= IEEE80211_SKB_CB(skb
);
1313 ieee80211_tx_info_clear_status(info
);
1314 if (MWL8K_TXD_SUCCESS(status
))
1315 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1317 ieee80211_tx_status_irqsafe(hw
, skb
);
1319 wake
= !priv
->inconfig
&& priv
->radio_on
;
1323 ieee80211_wake_queue(hw
, index
);
1326 /* must be called only when the card's transmit is completely halted */
1327 static void mwl8k_txq_deinit(struct ieee80211_hw
*hw
, int index
)
1329 struct mwl8k_priv
*priv
= hw
->priv
;
1330 struct mwl8k_tx_queue
*txq
= priv
->txq
+ index
;
1332 mwl8k_txq_reclaim(hw
, index
, 1);
1337 pci_free_consistent(priv
->pdev
,
1338 MWL8K_TX_DESCS
* sizeof(struct mwl8k_tx_desc
),
1339 txq
->tx_desc_area
, txq
->tx_desc_dma
);
1340 txq
->tx_desc_area
= NULL
;
1344 mwl8k_txq_xmit(struct ieee80211_hw
*hw
, int index
, struct sk_buff
*skb
)
1346 struct mwl8k_priv
*priv
= hw
->priv
;
1347 struct ieee80211_tx_info
*tx_info
;
1348 struct ieee80211_hdr
*wh
;
1349 struct mwl8k_tx_queue
*txq
;
1350 struct mwl8k_tx_desc
*tx
;
1351 struct mwl8k_dma_data
*tr
;
1352 struct mwl8k_vif
*mwl8k_vif
;
1353 struct sk_buff
*org_skb
= skb
;
1356 bool qosframe
= false, ampduframe
= false;
1357 bool mcframe
= false, eapolframe
= false;
1358 bool amsduframe
= false;
1361 txq
= priv
->txq
+ index
;
1362 tx
= txq
->tx_desc_area
+ txq
->tx_tail
;
1364 BUG_ON(txq
->tx_skb
[txq
->tx_tail
].skb
!= NULL
);
1367 * Append HW DMA header to start of packet. Drop packet if
1368 * there is not enough space or a failure to unshare/unclone
1371 skb
= mwl8k_add_dma_header(skb
);
1374 printk(KERN_DEBUG
"%s: failed to prepend HW DMA "
1375 "header, dropping TX frame.\n", priv
->name
);
1376 dev_kfree_skb(org_skb
);
1377 return NETDEV_TX_OK
;
1380 tx_info
= IEEE80211_SKB_CB(skb
);
1381 mwl8k_vif
= MWL8K_VIF(tx_info
->control
.vif
);
1382 tr
= (struct mwl8k_dma_data
*)skb
->data
;
1384 fc
= wh
->frame_control
;
1385 qosframe
= ieee80211_is_data_qos(fc
);
1386 mcframe
= is_multicast_ether_addr(wh
->addr1
);
1387 ampduframe
= !!(tx_info
->flags
& IEEE80211_TX_CTL_AMPDU
);
1389 if (tx_info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
1390 u16 seqno
= mwl8k_vif
->seqno
;
1391 wh
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
1392 wh
->seq_ctrl
|= cpu_to_le16(seqno
<< 4);
1393 mwl8k_vif
->seqno
= seqno
++ % 4096;
1397 qos
= le16_to_cpu(*((__le16
*)ieee80211_get_qos_ctl(wh
)));
1399 dma
= pci_map_single(priv
->pdev
, skb
->data
,
1400 skb
->len
, PCI_DMA_TODEVICE
);
1402 if (pci_dma_mapping_error(priv
->pdev
, dma
)) {
1403 printk(KERN_DEBUG
"%s: failed to dma map skb, "
1404 "dropping TX frame.\n", priv
->name
);
1406 if (org_skb
!= NULL
)
1407 dev_kfree_skb(org_skb
);
1410 return NETDEV_TX_OK
;
1413 /* Set desc header, cpu bit order. */
1416 tx
->tx_priority
= index
;
1417 tx
->qos_control
= 0;
1419 tx
->peer_id
= mwl8k_vif
->peer_id
;
1421 amsduframe
= !!(qos
& IEEE80211_QOS_CONTROL_A_MSDU_PRESENT
);
1423 /* Setup firmware control bit fields for each frame type. */
1424 if (ieee80211_is_mgmt(fc
) || ieee80211_is_ctl(fc
)) {
1426 qos
= mwl8k_qos_setbit_eosp(qos
);
1427 /* Set Queue size to unspecified */
1428 qos
= mwl8k_qos_setbit_qlen(qos
, 0xff);
1429 } else if (ieee80211_is_data(fc
)) {
1432 tx
->status
|= MWL8K_TXD_STATUS_MULTICAST_TX
;
1435 * Tell firmware to not send EAPOL pkts in an
1436 * aggregate. Verify against mac80211 tx path. If
1437 * stack turns off AMPDU for an EAPOL frame this
1438 * check will be removed.
1441 qos
= mwl8k_qos_setbit_ack(qos
,
1442 MWL8K_TXD_ACK_POLICY_NORMAL
);
1444 /* Send pkt in an aggregate if AMPDU frame. */
1446 qos
= mwl8k_qos_setbit_ack(qos
,
1447 MWL8K_TXD_ACK_POLICY_BLOCKACK
);
1449 qos
= mwl8k_qos_setbit_ack(qos
,
1450 MWL8K_TXD_ACK_POLICY_NORMAL
);
1453 qos
= mwl8k_qos_setbit_amsdu(qos
);
1457 /* Convert to little endian */
1458 tx
->qos_control
= cpu_to_le16(qos
);
1459 tx
->status
= cpu_to_le32(tx
->status
);
1460 tx
->pkt_phys_addr
= cpu_to_le32(dma
);
1461 tx
->pkt_len
= cpu_to_le16(skb
->len
);
1463 txq
->tx_skb
[txq
->tx_tail
].skb
= skb
;
1464 txq
->tx_skb
[txq
->tx_tail
].clone
=
1465 skb
== org_skb
? NULL
: org_skb
;
1467 spin_lock_bh(&priv
->tx_lock
);
1469 tx
->status
= cpu_to_le32(MWL8K_TXD_STATUS_OK
|
1470 MWL8K_TXD_STATUS_FW_OWNED
);
1472 txq
->tx_stats
.len
++;
1473 priv
->pending_tx_pkts
++;
1474 txq
->tx_stats
.count
++;
1477 if (txq
->tx_tail
== MWL8K_TX_DESCS
)
1479 if (txq
->tx_head
== txq
->tx_tail
)
1480 ieee80211_stop_queue(hw
, index
);
1482 if (priv
->inconfig
) {
1484 * Silently queue packet when we are in the middle of
1485 * a config cycle. Notify firmware only if we are
1486 * waiting for TXQs to empty. If a packet is sent
1487 * before .config() is complete, perhaps it is better
1488 * to drop the packet, as the channel is being changed
1489 * and the packet will end up on the wrong channel.
1491 printk(KERN_ERR
"%s(): WARNING TX activity while "
1492 "in config\n", __func__
);
1494 if (priv
->tx_wait
!= NULL
)
1495 mwl8k_tx_start(priv
);
1497 mwl8k_tx_start(priv
);
1499 spin_unlock_bh(&priv
->tx_lock
);
1501 return NETDEV_TX_OK
;
1506 * Command processing.
1509 /* Timeout firmware commands after 2000ms */
1510 #define MWL8K_CMD_TIMEOUT_MS 2000
1512 static int mwl8k_post_cmd(struct ieee80211_hw
*hw
, struct mwl8k_cmd_pkt
*cmd
)
1514 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
1515 struct mwl8k_priv
*priv
= hw
->priv
;
1516 void __iomem
*regs
= priv
->regs
;
1517 dma_addr_t dma_addr
;
1518 unsigned int dma_size
;
1520 unsigned long timeout
= 0;
1523 cmd
->result
= 0xFFFF;
1524 dma_size
= le16_to_cpu(cmd
->length
);
1525 dma_addr
= pci_map_single(priv
->pdev
, cmd
, dma_size
,
1526 PCI_DMA_BIDIRECTIONAL
);
1527 if (pci_dma_mapping_error(priv
->pdev
, dma_addr
))
1530 if (priv
->hostcmd_wait
!= NULL
)
1531 printk(KERN_ERR
"WARNING host command in progress\n");
1533 spin_lock_irq(&priv
->fw_lock
);
1534 priv
->hostcmd_wait
= &cmd_wait
;
1535 iowrite32(dma_addr
, regs
+ MWL8K_HIU_GEN_PTR
);
1536 iowrite32(MWL8K_H2A_INT_DOORBELL
,
1537 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1538 iowrite32(MWL8K_H2A_INT_DUMMY
,
1539 regs
+ MWL8K_HIU_H2A_INTERRUPT_EVENTS
);
1540 spin_unlock_irq(&priv
->fw_lock
);
1542 timeout
= wait_for_completion_timeout(&cmd_wait
,
1543 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS
));
1545 pci_unmap_single(priv
->pdev
, dma_addr
, dma_size
,
1546 PCI_DMA_BIDIRECTIONAL
);
1549 spin_lock_irq(&priv
->fw_lock
);
1550 priv
->hostcmd_wait
= NULL
;
1551 spin_unlock_irq(&priv
->fw_lock
);
1552 printk(KERN_ERR
"%s: Command %s timeout after %u ms\n",
1554 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
1555 MWL8K_CMD_TIMEOUT_MS
);
1558 rc
= cmd
->result
? -EINVAL
: 0;
1560 printk(KERN_ERR
"%s: Command %s error 0x%x\n",
1562 mwl8k_cmd_name(cmd
->code
, buf
, sizeof(buf
)),
1572 struct mwl8k_cmd_get_hw_spec
{
1573 struct mwl8k_cmd_pkt header
;
1575 __u8 host_interface
;
1577 __u8 perm_addr
[ETH_ALEN
];
1582 __u8 mcs_bitmap
[16];
1583 __le32 rx_queue_ptr
;
1584 __le32 num_tx_queues
;
1585 __le32 tx_queue_ptrs
[MWL8K_TX_QUEUES
];
1587 __le32 num_tx_desc_per_queue
;
1588 __le32 total_rx_desc
;
1589 } __attribute__((packed
));
1591 static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw
*hw
)
1593 struct mwl8k_priv
*priv
= hw
->priv
;
1594 struct mwl8k_cmd_get_hw_spec
*cmd
;
1598 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1602 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_HW_SPEC
);
1603 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1605 memset(cmd
->perm_addr
, 0xff, sizeof(cmd
->perm_addr
));
1606 cmd
->ps_cookie
= cpu_to_le32(priv
->cookie_dma
);
1607 cmd
->rx_queue_ptr
= cpu_to_le32(priv
->rxq
[0].rx_desc_dma
);
1608 cmd
->num_tx_queues
= cpu_to_le32(MWL8K_TX_QUEUES
);
1609 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++)
1610 cmd
->tx_queue_ptrs
[i
] = cpu_to_le32(priv
->txq
[i
].tx_desc_dma
);
1611 cmd
->num_tx_desc_per_queue
= cpu_to_le32(MWL8K_TX_DESCS
);
1612 cmd
->total_rx_desc
= cpu_to_le32(MWL8K_RX_DESCS
);
1614 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1617 SET_IEEE80211_PERM_ADDR(hw
, cmd
->perm_addr
);
1618 priv
->num_mcaddrs
= le16_to_cpu(cmd
->num_mcaddrs
);
1619 priv
->fw_rev
= le32_to_cpu(cmd
->fw_rev
);
1620 priv
->hw_rev
= cmd
->hw_rev
;
1628 * CMD_MAC_MULTICAST_ADR.
1630 struct mwl8k_cmd_mac_multicast_adr
{
1631 struct mwl8k_cmd_pkt header
;
1634 __u8 addr
[0][ETH_ALEN
];
1637 #define MWL8K_ENABLE_RX_MULTICAST 0x000F
1639 static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw
*hw
,
1641 struct dev_addr_list
*mclist
)
1643 struct mwl8k_cmd_mac_multicast_adr
*cmd
;
1646 int size
= sizeof(*cmd
) + mc_count
* ETH_ALEN
;
1648 cmd
= kzalloc(size
, GFP_KERNEL
);
1652 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR
);
1653 cmd
->header
.length
= cpu_to_le16(size
);
1654 cmd
->action
= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST
);
1655 cmd
->numaddr
= cpu_to_le16(mc_count
);
1657 while (index
< mc_count
&& mclist
) {
1658 if (mclist
->da_addrlen
!= ETH_ALEN
) {
1660 goto mwl8k_cmd_mac_multicast_adr_exit
;
1662 memcpy(cmd
->addr
[index
++], mclist
->da_addr
, ETH_ALEN
);
1663 mclist
= mclist
->next
;
1666 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1668 mwl8k_cmd_mac_multicast_adr_exit
:
1674 * CMD_802_11_GET_STAT.
1676 struct mwl8k_cmd_802_11_get_stat
{
1677 struct mwl8k_cmd_pkt header
;
1680 } __attribute__((packed
));
1682 #define MWL8K_STAT_ACK_FAILURE 9
1683 #define MWL8K_STAT_RTS_FAILURE 12
1684 #define MWL8K_STAT_FCS_ERROR 24
1685 #define MWL8K_STAT_RTS_SUCCESS 11
1687 static int mwl8k_cmd_802_11_get_stat(struct ieee80211_hw
*hw
,
1688 struct ieee80211_low_level_stats
*stats
)
1690 struct mwl8k_cmd_802_11_get_stat
*cmd
;
1693 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1697 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_GET_STAT
);
1698 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1699 cmd
->action
= cpu_to_le16(MWL8K_CMD_GET
);
1701 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1703 stats
->dot11ACKFailureCount
=
1704 le32_to_cpu(cmd
->stats
[MWL8K_STAT_ACK_FAILURE
]);
1705 stats
->dot11RTSFailureCount
=
1706 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_FAILURE
]);
1707 stats
->dot11FCSErrorCount
=
1708 le32_to_cpu(cmd
->stats
[MWL8K_STAT_FCS_ERROR
]);
1709 stats
->dot11RTSSuccessCount
=
1710 le32_to_cpu(cmd
->stats
[MWL8K_STAT_RTS_SUCCESS
]);
1718 * CMD_802_11_RADIO_CONTROL.
1720 struct mwl8k_cmd_802_11_radio_control
{
1721 struct mwl8k_cmd_pkt header
;
1725 } __attribute__((packed
));
1728 mwl8k_cmd_802_11_radio_control(struct ieee80211_hw
*hw
, bool enable
, bool force
)
1730 struct mwl8k_priv
*priv
= hw
->priv
;
1731 struct mwl8k_cmd_802_11_radio_control
*cmd
;
1734 if (enable
== priv
->radio_on
&& !force
)
1737 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1741 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RADIO_CONTROL
);
1742 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1743 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
1744 cmd
->control
= cpu_to_le16(priv
->radio_preamble
);
1745 cmd
->radio_on
= cpu_to_le16(enable
? 0x0001 : 0x0000);
1747 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1751 priv
->radio_on
= enable
;
1756 static int mwl8k_cmd_802_11_radio_disable(struct ieee80211_hw
*hw
)
1758 return mwl8k_cmd_802_11_radio_control(hw
, 0, 0);
1761 static int mwl8k_cmd_802_11_radio_enable(struct ieee80211_hw
*hw
)
1763 return mwl8k_cmd_802_11_radio_control(hw
, 1, 0);
1767 mwl8k_set_radio_preamble(struct ieee80211_hw
*hw
, bool short_preamble
)
1769 struct mwl8k_priv
*priv
;
1771 if (hw
== NULL
|| hw
->priv
== NULL
)
1775 priv
->radio_preamble
= (short_preamble
?
1776 MWL8K_RADIO_SHORT_PREAMBLE
:
1777 MWL8K_RADIO_LONG_PREAMBLE
);
1779 return mwl8k_cmd_802_11_radio_control(hw
, 1, 1);
1783 * CMD_802_11_RF_TX_POWER.
1785 #define MWL8K_TX_POWER_LEVEL_TOTAL 8
1787 struct mwl8k_cmd_802_11_rf_tx_power
{
1788 struct mwl8k_cmd_pkt header
;
1790 __le16 support_level
;
1791 __le16 current_level
;
1793 __le16 power_level_list
[MWL8K_TX_POWER_LEVEL_TOTAL
];
1794 } __attribute__((packed
));
1796 static int mwl8k_cmd_802_11_rf_tx_power(struct ieee80211_hw
*hw
, int dBm
)
1798 struct mwl8k_cmd_802_11_rf_tx_power
*cmd
;
1801 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1805 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RF_TX_POWER
);
1806 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1807 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
1808 cmd
->support_level
= cpu_to_le16(dBm
);
1810 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1819 struct mwl8k_cmd_set_pre_scan
{
1820 struct mwl8k_cmd_pkt header
;
1821 } __attribute__((packed
));
1823 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw
*hw
)
1825 struct mwl8k_cmd_set_pre_scan
*cmd
;
1828 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1832 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN
);
1833 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1835 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1842 * CMD_SET_POST_SCAN.
1844 struct mwl8k_cmd_set_post_scan
{
1845 struct mwl8k_cmd_pkt header
;
1847 __u8 bssid
[ETH_ALEN
];
1848 } __attribute__((packed
));
1851 mwl8k_cmd_set_post_scan(struct ieee80211_hw
*hw
, __u8
*mac
)
1853 struct mwl8k_cmd_set_post_scan
*cmd
;
1856 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1860 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_POST_SCAN
);
1861 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1863 memcpy(cmd
->bssid
, mac
, ETH_ALEN
);
1865 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1872 * CMD_SET_RF_CHANNEL.
1874 struct mwl8k_cmd_set_rf_channel
{
1875 struct mwl8k_cmd_pkt header
;
1877 __u8 current_channel
;
1878 __le32 channel_flags
;
1879 } __attribute__((packed
));
1881 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw
*hw
,
1882 struct ieee80211_channel
*channel
)
1884 struct mwl8k_cmd_set_rf_channel
*cmd
;
1887 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1891 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL
);
1892 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1893 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
1894 cmd
->current_channel
= channel
->hw_value
;
1895 if (channel
->band
== IEEE80211_BAND_2GHZ
)
1896 cmd
->channel_flags
= cpu_to_le32(0x00000081);
1898 cmd
->channel_flags
= cpu_to_le32(0x00000000);
1900 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1909 struct mwl8k_cmd_set_slot
{
1910 struct mwl8k_cmd_pkt header
;
1913 } __attribute__((packed
));
1915 static int mwl8k_cmd_set_slot(struct ieee80211_hw
*hw
, int slot_time
)
1917 struct mwl8k_cmd_set_slot
*cmd
;
1920 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1924 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_SLOT
);
1925 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1926 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
1927 cmd
->short_slot
= slot_time
== MWL8K_SHORT_SLOTTIME
? 1 : 0;
1929 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1938 struct mwl8k_cmd_mimo_config
{
1939 struct mwl8k_cmd_pkt header
;
1941 __u8 rx_antenna_map
;
1942 __u8 tx_antenna_map
;
1943 } __attribute__((packed
));
1945 static int mwl8k_cmd_mimo_config(struct ieee80211_hw
*hw
, __u8 rx
, __u8 tx
)
1947 struct mwl8k_cmd_mimo_config
*cmd
;
1950 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1954 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_MIMO_CONFIG
);
1955 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1956 cmd
->action
= cpu_to_le32((u32
)MWL8K_CMD_SET
);
1957 cmd
->rx_antenna_map
= rx
;
1958 cmd
->tx_antenna_map
= tx
;
1960 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1967 * CMD_ENABLE_SNIFFER.
1969 struct mwl8k_cmd_enable_sniffer
{
1970 struct mwl8k_cmd_pkt header
;
1972 } __attribute__((packed
));
1974 static int mwl8k_enable_sniffer(struct ieee80211_hw
*hw
, bool enable
)
1976 struct mwl8k_cmd_enable_sniffer
*cmd
;
1979 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1983 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER
);
1984 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
1985 cmd
->action
= cpu_to_le32(!!enable
);
1987 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
1994 * CMD_SET_RATEADAPT_MODE.
1996 struct mwl8k_cmd_set_rate_adapt_mode
{
1997 struct mwl8k_cmd_pkt header
;
2000 } __attribute__((packed
));
2002 static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw
*hw
, __u16 mode
)
2004 struct mwl8k_cmd_set_rate_adapt_mode
*cmd
;
2007 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2011 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE
);
2012 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2013 cmd
->action
= cpu_to_le16(MWL8K_CMD_SET
);
2014 cmd
->mode
= cpu_to_le16(mode
);
2016 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2025 struct mwl8k_cmd_set_wmm
{
2026 struct mwl8k_cmd_pkt header
;
2028 } __attribute__((packed
));
2030 static int mwl8k_set_wmm(struct ieee80211_hw
*hw
, bool enable
)
2032 struct mwl8k_priv
*priv
= hw
->priv
;
2033 struct mwl8k_cmd_set_wmm
*cmd
;
2036 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2040 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_WMM_MODE
);
2041 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2042 cmd
->action
= enable
? cpu_to_le16(MWL8K_CMD_SET
) : 0;
2044 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2048 priv
->wmm_mode
= enable
;
2054 * CMD_SET_RTS_THRESHOLD.
2056 struct mwl8k_cmd_rts_threshold
{
2057 struct mwl8k_cmd_pkt header
;
2060 } __attribute__((packed
));
2062 static int mwl8k_rts_threshold(struct ieee80211_hw
*hw
,
2063 u16 action
, u16
*threshold
)
2065 struct mwl8k_cmd_rts_threshold
*cmd
;
2068 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2072 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD
);
2073 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2074 cmd
->action
= cpu_to_le16(action
);
2075 cmd
->threshold
= cpu_to_le16(*threshold
);
2077 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2084 * CMD_SET_EDCA_PARAMS.
2086 struct mwl8k_cmd_set_edca_params
{
2087 struct mwl8k_cmd_pkt header
;
2089 /* See MWL8K_SET_EDCA_XXX below */
2092 /* TX opportunity in units of 32 us */
2095 /* Log exponent of max contention period: 0...15*/
2098 /* Log exponent of min contention period: 0...15 */
2101 /* Adaptive interframe spacing in units of 32us */
2104 /* TX queue to configure */
2106 } __attribute__((packed
));
2108 #define MWL8K_SET_EDCA_CW 0x01
2109 #define MWL8K_SET_EDCA_TXOP 0x02
2110 #define MWL8K_SET_EDCA_AIFS 0x04
2112 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
2113 MWL8K_SET_EDCA_TXOP | \
2114 MWL8K_SET_EDCA_AIFS)
2117 mwl8k_set_edca_params(struct ieee80211_hw
*hw
, __u8 qnum
,
2118 __u16 cw_min
, __u16 cw_max
,
2119 __u8 aifs
, __u16 txop
)
2121 struct mwl8k_cmd_set_edca_params
*cmd
;
2124 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2128 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS
);
2129 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2130 cmd
->action
= cpu_to_le16(MWL8K_SET_EDCA_ALL
);
2131 cmd
->txop
= cpu_to_le16(txop
);
2132 cmd
->log_cw_max
= (u8
)ilog2(cw_max
+ 1);
2133 cmd
->log_cw_min
= (u8
)ilog2(cw_min
+ 1);
2137 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2144 * CMD_FINALIZE_JOIN.
2147 /* FJ beacon buffer size is compiled into the firmware. */
2148 #define MWL8K_FJ_BEACON_MAXLEN 128
2150 struct mwl8k_cmd_finalize_join
{
2151 struct mwl8k_cmd_pkt header
;
2152 __le32 sleep_interval
; /* Number of beacon periods to sleep */
2153 __u8 beacon_data
[MWL8K_FJ_BEACON_MAXLEN
];
2154 } __attribute__((packed
));
2156 static int mwl8k_finalize_join(struct ieee80211_hw
*hw
, void *frame
,
2157 __u16 framelen
, __u16 dtim
)
2159 struct mwl8k_cmd_finalize_join
*cmd
;
2160 struct ieee80211_mgmt
*payload
= frame
;
2168 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2172 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN
);
2173 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2174 cmd
->sleep_interval
= cpu_to_le32(dtim
? dtim
: 1);
2176 hdrlen
= ieee80211_hdrlen(payload
->frame_control
);
2178 payload_len
= framelen
> hdrlen
? framelen
- hdrlen
: 0;
2180 /* XXX TBD Might just have to abort and return an error */
2181 if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
2182 printk(KERN_ERR
"%s(): WARNING: Incomplete beacon "
2183 "sent to firmware. Sz=%u MAX=%u\n", __func__
,
2184 payload_len
, MWL8K_FJ_BEACON_MAXLEN
);
2186 if (payload_len
> MWL8K_FJ_BEACON_MAXLEN
)
2187 payload_len
= MWL8K_FJ_BEACON_MAXLEN
;
2189 if (payload
&& payload_len
)
2190 memcpy(cmd
->beacon_data
, &payload
->u
.beacon
, payload_len
);
2192 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2200 struct mwl8k_cmd_update_sta_db
{
2201 struct mwl8k_cmd_pkt header
;
2203 /* See STADB_ACTION_TYPE */
2206 /* Peer MAC address */
2207 __u8 peer_addr
[ETH_ALEN
];
2211 /* Peer info - valid during add/update. */
2212 struct peer_capability_info peer_info
;
2213 } __attribute__((packed
));
2215 static int mwl8k_cmd_update_sta_db(struct ieee80211_hw
*hw
,
2216 struct ieee80211_vif
*vif
, __u32 action
)
2218 struct mwl8k_vif
*mv_vif
= MWL8K_VIF(vif
);
2219 struct ieee80211_bss_conf
*info
= &mv_vif
->bss_info
;
2220 struct mwl8k_cmd_update_sta_db
*cmd
;
2221 struct peer_capability_info
*peer_info
;
2222 struct ieee80211_rate
*bitrates
= mv_vif
->legacy_rates
;
2226 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2230 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_UPDATE_STADB
);
2231 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2233 cmd
->action
= cpu_to_le32(action
);
2234 peer_info
= &cmd
->peer_info
;
2235 memcpy(cmd
->peer_addr
, mv_vif
->bssid
, ETH_ALEN
);
2238 case MWL8K_STA_DB_ADD_ENTRY
:
2239 case MWL8K_STA_DB_MODIFY_ENTRY
:
2240 /* Build peer_info block */
2241 peer_info
->peer_type
= MWL8K_PEER_TYPE_ACCESSPOINT
;
2242 peer_info
->basic_caps
= cpu_to_le16(info
->assoc_capability
);
2243 peer_info
->interop
= 1;
2244 peer_info
->amsdu_enabled
= 0;
2246 rates
= peer_info
->legacy_rates
;
2247 for (count
= 0; count
< mv_vif
->legacy_nrates
; count
++)
2248 rates
[count
] = bitrates
[count
].hw_value
;
2250 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2252 mv_vif
->peer_id
= peer_info
->station_id
;
2256 case MWL8K_STA_DB_DEL_ENTRY
:
2257 case MWL8K_STA_DB_FLUSH
:
2259 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2261 mv_vif
->peer_id
= 0;
2272 #define MWL8K_RATE_INDEX_MAX_ARRAY 14
2274 #define MWL8K_FRAME_PROT_DISABLED 0x00
2275 #define MWL8K_FRAME_PROT_11G 0x07
2276 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2277 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2279 struct mwl8k_cmd_update_set_aid
{
2280 struct mwl8k_cmd_pkt header
;
2283 /* AP's MAC address (BSSID) */
2284 __u8 bssid
[ETH_ALEN
];
2285 __le16 protection_mode
;
2286 __u8 supp_rates
[MWL8K_RATE_INDEX_MAX_ARRAY
];
2287 } __attribute__((packed
));
2289 static int mwl8k_cmd_set_aid(struct ieee80211_hw
*hw
,
2290 struct ieee80211_vif
*vif
)
2292 struct mwl8k_vif
*mv_vif
= MWL8K_VIF(vif
);
2293 struct ieee80211_bss_conf
*info
= &mv_vif
->bss_info
;
2294 struct mwl8k_cmd_update_set_aid
*cmd
;
2295 struct ieee80211_rate
*bitrates
= mv_vif
->legacy_rates
;
2300 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2304 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_AID
);
2305 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2306 cmd
->aid
= cpu_to_le16(info
->aid
);
2308 memcpy(cmd
->bssid
, mv_vif
->bssid
, ETH_ALEN
);
2310 if (info
->use_cts_prot
) {
2311 prot_mode
= MWL8K_FRAME_PROT_11G
;
2313 switch (info
->ht_operation_mode
&
2314 IEEE80211_HT_OP_MODE_PROTECTION
) {
2315 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
2316 prot_mode
= MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY
;
2318 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
2319 prot_mode
= MWL8K_FRAME_PROT_11N_HT_ALL
;
2322 prot_mode
= MWL8K_FRAME_PROT_DISABLED
;
2326 cmd
->protection_mode
= cpu_to_le16(prot_mode
);
2328 for (count
= 0; count
< mv_vif
->legacy_nrates
; count
++)
2329 cmd
->supp_rates
[count
] = bitrates
[count
].hw_value
;
2331 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2340 struct mwl8k_cmd_update_rateset
{
2341 struct mwl8k_cmd_pkt header
;
2342 __u8 legacy_rates
[MWL8K_RATE_INDEX_MAX_ARRAY
];
2344 /* Bitmap for supported MCS codes. */
2345 __u8 mcs_set
[MWL8K_IEEE_LEGACY_DATA_RATES
];
2346 __u8 reserved
[MWL8K_IEEE_LEGACY_DATA_RATES
];
2347 } __attribute__((packed
));
2349 static int mwl8k_update_rateset(struct ieee80211_hw
*hw
,
2350 struct ieee80211_vif
*vif
)
2352 struct mwl8k_vif
*mv_vif
= MWL8K_VIF(vif
);
2353 struct mwl8k_cmd_update_rateset
*cmd
;
2354 struct ieee80211_rate
*bitrates
= mv_vif
->legacy_rates
;
2358 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2362 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_SET_RATE
);
2363 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2365 for (count
= 0; count
< mv_vif
->legacy_nrates
; count
++)
2366 cmd
->legacy_rates
[count
] = bitrates
[count
].hw_value
;
2368 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2375 * CMD_USE_FIXED_RATE.
2377 #define MWL8K_RATE_TABLE_SIZE 8
2378 #define MWL8K_UCAST_RATE 0
2379 #define MWL8K_USE_AUTO_RATE 0x0002
2381 struct mwl8k_rate_entry
{
2382 /* Set to 1 if HT rate, 0 if legacy. */
2385 /* Set to 1 to use retry_count field. */
2386 __le32 enable_retry
;
2388 /* Specified legacy rate or MCS. */
2391 /* Number of allowed retries. */
2393 } __attribute__((packed
));
2395 struct mwl8k_rate_table
{
2396 /* 1 to allow specified rate and below */
2397 __le32 allow_rate_drop
;
2399 struct mwl8k_rate_entry rate_entry
[MWL8K_RATE_TABLE_SIZE
];
2400 } __attribute__((packed
));
2402 struct mwl8k_cmd_use_fixed_rate
{
2403 struct mwl8k_cmd_pkt header
;
2405 struct mwl8k_rate_table rate_table
;
2407 /* Unicast, Broadcast or Multicast */
2411 } __attribute__((packed
));
2413 static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw
*hw
,
2414 u32 action
, u32 rate_type
, struct mwl8k_rate_table
*rate_table
)
2416 struct mwl8k_cmd_use_fixed_rate
*cmd
;
2420 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
2424 cmd
->header
.code
= cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE
);
2425 cmd
->header
.length
= cpu_to_le16(sizeof(*cmd
));
2427 cmd
->action
= cpu_to_le32(action
);
2428 cmd
->rate_type
= cpu_to_le32(rate_type
);
2430 if (rate_table
!= NULL
) {
2431 /* Copy over each field manually so
2432 * that bitflipping can be done
2434 cmd
->rate_table
.allow_rate_drop
=
2435 cpu_to_le32(rate_table
->allow_rate_drop
);
2436 cmd
->rate_table
.num_rates
=
2437 cpu_to_le32(rate_table
->num_rates
);
2439 for (count
= 0; count
< rate_table
->num_rates
; count
++) {
2440 struct mwl8k_rate_entry
*dst
=
2441 &cmd
->rate_table
.rate_entry
[count
];
2442 struct mwl8k_rate_entry
*src
=
2443 &rate_table
->rate_entry
[count
];
2445 dst
->is_ht_rate
= cpu_to_le32(src
->is_ht_rate
);
2446 dst
->enable_retry
= cpu_to_le32(src
->enable_retry
);
2447 dst
->rate
= cpu_to_le32(src
->rate
);
2448 dst
->retry_count
= cpu_to_le32(src
->retry_count
);
2452 rc
= mwl8k_post_cmd(hw
, &cmd
->header
);
2460 * Interrupt handling.
2462 static irqreturn_t
mwl8k_interrupt(int irq
, void *dev_id
)
2464 struct ieee80211_hw
*hw
= dev_id
;
2465 struct mwl8k_priv
*priv
= hw
->priv
;
2468 status
= ioread32(priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
2469 iowrite32(~status
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
2474 if (status
& MWL8K_A2H_INT_TX_DONE
)
2475 tasklet_schedule(&priv
->tx_reclaim_task
);
2477 if (status
& MWL8K_A2H_INT_RX_READY
) {
2478 while (rxq_process(hw
, 0, 1))
2479 rxq_refill(hw
, 0, 1);
2482 if (status
& MWL8K_A2H_INT_OPC_DONE
) {
2483 if (priv
->hostcmd_wait
!= NULL
) {
2484 complete(priv
->hostcmd_wait
);
2485 priv
->hostcmd_wait
= NULL
;
2489 if (status
& MWL8K_A2H_INT_QUEUE_EMPTY
) {
2490 if (!priv
->inconfig
&&
2492 mwl8k_txq_busy(priv
))
2493 mwl8k_tx_start(priv
);
2501 * Core driver operations.
2503 static int mwl8k_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2505 struct mwl8k_priv
*priv
= hw
->priv
;
2506 int index
= skb_get_queue_mapping(skb
);
2509 if (priv
->current_channel
== NULL
) {
2510 printk(KERN_DEBUG
"%s: dropped TX frame since radio "
2511 "disabled\n", priv
->name
);
2513 return NETDEV_TX_OK
;
2516 rc
= mwl8k_txq_xmit(hw
, index
, skb
);
2521 struct mwl8k_work_struct
{
2522 /* Initialized by mwl8k_queue_work(). */
2523 struct work_struct wt
;
2525 /* Required field passed in to mwl8k_queue_work(). */
2526 struct ieee80211_hw
*hw
;
2528 /* Required field passed in to mwl8k_queue_work(). */
2529 int (*wfunc
)(struct work_struct
*w
);
2531 /* Initialized by mwl8k_queue_work(). */
2532 struct completion
*cmd_wait
;
2538 * Optional field. Refer to explanation of MWL8K_WQ_XXX_XXX
2539 * flags for explanation. Defaults to MWL8K_WQ_DEFAULT_OPTIONS.
2543 /* Optional field. Defaults to MWL8K_CONFIG_TIMEOUT_MS. */
2544 unsigned long timeout_ms
;
2546 /* Optional field. Defaults to MWL8K_WQ_TXWAIT_ATTEMPTS. */
2547 u32 txwait_attempts
;
2549 /* Optional field. Defaults to MWL8K_TXWAIT_MS. */
2554 /* Flags controlling behavior of config queue requests */
2556 /* Caller spins while waiting for completion. */
2557 #define MWL8K_WQ_SPIN 0x00000001
2559 /* Wait for TX queues to empty before proceeding with configuration. */
2560 #define MWL8K_WQ_TX_WAIT_EMPTY 0x00000002
2562 /* Queue request and return immediately. */
2563 #define MWL8K_WQ_POST_REQUEST 0x00000004
2566 * Caller sleeps and waits for task complete notification.
2567 * Do not use in atomic context.
2569 #define MWL8K_WQ_SLEEP 0x00000008
2571 /* Free work struct when task is done. */
2572 #define MWL8K_WQ_FREE_WORKSTRUCT 0x00000010
2575 * Config request is queued and returns to caller imediately. Use
2576 * this in atomic context. Work struct is freed by mwl8k_queue_work()
2577 * when this flag is set.
2579 #define MWL8K_WQ_QUEUE_ONLY (MWL8K_WQ_POST_REQUEST | \
2580 MWL8K_WQ_FREE_WORKSTRUCT)
2582 /* Default work queue behavior is to sleep and wait for tx completion. */
2583 #define MWL8K_WQ_DEFAULT_OPTIONS (MWL8K_WQ_SLEEP | MWL8K_WQ_TX_WAIT_EMPTY)
2586 * Default config request timeout. Add adjustments to make sure the
2587 * config thread waits long enough for both tx wait and cmd wait before
2591 /* Time to wait for all TXQs to drain. TX Doorbell is pressed each time. */
2592 #define MWL8K_TXWAIT_TIMEOUT_MS 1000
2594 /* Default number of TX wait attempts. */
2595 #define MWL8K_WQ_TXWAIT_ATTEMPTS 4
2597 /* Total time to wait for TXQ to drain. */
2598 #define MWL8K_TXWAIT_MS (MWL8K_TXWAIT_TIMEOUT_MS * \
2599 MWL8K_WQ_TXWAIT_ATTEMPTS)
2601 /* Scheduling slop. */
2602 #define MWL8K_OS_SCHEDULE_OVERHEAD_MS 200
2604 #define MWL8K_CONFIG_TIMEOUT_MS (MWL8K_CMD_TIMEOUT_MS + \
2606 MWL8K_OS_SCHEDULE_OVERHEAD_MS)
2608 static void mwl8k_config_thread(struct work_struct
*wt
)
2610 struct mwl8k_work_struct
*worker
= (struct mwl8k_work_struct
*)wt
;
2611 struct ieee80211_hw
*hw
= worker
->hw
;
2612 struct mwl8k_priv
*priv
= hw
->priv
;
2615 spin_lock_irq(&priv
->tx_lock
);
2616 priv
->inconfig
= true;
2617 spin_unlock_irq(&priv
->tx_lock
);
2619 ieee80211_stop_queues(hw
);
2622 * Wait for host queues to drain before doing PHY
2623 * reconfiguration. This avoids interrupting any in-flight
2624 * DMA transfers to the hardware.
2626 if (worker
->options
& MWL8K_WQ_TX_WAIT_EMPTY
) {
2630 u32 tx_wait_attempts
= worker
->txwait_attempts
;
2632 time_remaining
= worker
->tx_timeout_ms
;
2633 if (!tx_wait_attempts
)
2634 tx_wait_attempts
= 1;
2636 timeout
= worker
->tx_timeout_ms
/tx_wait_attempts
;
2640 iter
= tx_wait_attempts
;
2644 if (time_remaining
> timeout
) {
2645 time_remaining
-= timeout
;
2646 wait_time
= timeout
;
2648 wait_time
= time_remaining
;
2653 rc
= mwl8k_tx_wait_empty(hw
, wait_time
);
2655 printk(KERN_ERR
"%s() txwait timeout=%ums "
2656 "Retry:%u/%u\n", __func__
, timeout
,
2657 tx_wait_attempts
- iter
+ 1,
2660 } while (rc
&& --iter
);
2662 rc
= iter
? 0 : -ETIMEDOUT
;
2665 rc
= worker
->wfunc(wt
);
2667 spin_lock_irq(&priv
->tx_lock
);
2668 priv
->inconfig
= false;
2669 if (priv
->pending_tx_pkts
&& priv
->radio_on
)
2670 mwl8k_tx_start(priv
);
2671 spin_unlock_irq(&priv
->tx_lock
);
2672 ieee80211_wake_queues(hw
);
2675 if (worker
->options
& MWL8K_WQ_SLEEP
)
2676 complete(worker
->cmd_wait
);
2678 if (worker
->options
& MWL8K_WQ_FREE_WORKSTRUCT
)
2682 static int mwl8k_queue_work(struct ieee80211_hw
*hw
,
2683 struct mwl8k_work_struct
*worker
,
2684 struct workqueue_struct
*wqueue
,
2685 int (*wfunc
)(struct work_struct
*w
))
2687 unsigned long timeout
= 0;
2690 DECLARE_COMPLETION_ONSTACK(cmd_wait
);
2692 if (!worker
->timeout_ms
)
2693 worker
->timeout_ms
= MWL8K_CONFIG_TIMEOUT_MS
;
2695 if (!worker
->options
)
2696 worker
->options
= MWL8K_WQ_DEFAULT_OPTIONS
;
2698 if (!worker
->txwait_attempts
)
2699 worker
->txwait_attempts
= MWL8K_WQ_TXWAIT_ATTEMPTS
;
2701 if (!worker
->tx_timeout_ms
)
2702 worker
->tx_timeout_ms
= MWL8K_TXWAIT_MS
;
2705 worker
->cmd_wait
= &cmd_wait
;
2707 worker
->wfunc
= wfunc
;
2709 INIT_WORK(&worker
->wt
, mwl8k_config_thread
);
2710 queue_work(wqueue
, &worker
->wt
);
2712 if (worker
->options
& MWL8K_WQ_POST_REQUEST
) {
2715 if (worker
->options
& MWL8K_WQ_SPIN
) {
2716 timeout
= worker
->timeout_ms
;
2717 while (timeout
&& (worker
->rc
> 0)) {
2721 } else if (worker
->options
& MWL8K_WQ_SLEEP
)
2722 timeout
= wait_for_completion_timeout(&cmd_wait
,
2723 msecs_to_jiffies(worker
->timeout_ms
));
2728 cancel_work_sync(&worker
->wt
);
2736 struct mwl8k_start_worker
{
2737 struct mwl8k_work_struct header
;
2740 static int mwl8k_start_wt(struct work_struct
*wt
)
2742 struct mwl8k_start_worker
*worker
= (struct mwl8k_start_worker
*)wt
;
2743 struct ieee80211_hw
*hw
= worker
->header
.hw
;
2744 struct mwl8k_priv
*priv
= hw
->priv
;
2747 if (priv
->vif
!= NULL
) {
2749 goto mwl8k_start_exit
;
2753 if (mwl8k_cmd_802_11_radio_enable(hw
)) {
2755 goto mwl8k_start_exit
;
2758 /* Purge TX/RX HW queues */
2759 if (mwl8k_cmd_set_pre_scan(hw
)) {
2761 goto mwl8k_start_exit
;
2764 if (mwl8k_cmd_set_post_scan(hw
, "\x00\x00\x00\x00\x00\x00")) {
2766 goto mwl8k_start_exit
;
2769 /* Enable firmware rate adaptation */
2770 if (mwl8k_cmd_setrateadaptmode(hw
, 0)) {
2772 goto mwl8k_start_exit
;
2775 /* Disable WMM. WMM gets enabled when stack sends WMM parms */
2776 if (mwl8k_set_wmm(hw
, MWL8K_WMM_DISABLE
)) {
2778 goto mwl8k_start_exit
;
2781 /* Disable sniffer mode */
2782 if (mwl8k_enable_sniffer(hw
, 0))
2789 static int mwl8k_start(struct ieee80211_hw
*hw
)
2791 struct mwl8k_start_worker
*worker
;
2792 struct mwl8k_priv
*priv
= hw
->priv
;
2795 /* Enable tx reclaim tasklet */
2796 tasklet_enable(&priv
->tx_reclaim_task
);
2798 rc
= request_irq(priv
->pdev
->irq
, &mwl8k_interrupt
,
2799 IRQF_SHARED
, MWL8K_NAME
, hw
);
2801 printk(KERN_ERR
"%s: failed to register IRQ handler\n",
2804 goto mwl8k_start_disable_tasklet
;
2807 /* Enable interrupts */
2808 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
2810 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
2811 if (worker
== NULL
) {
2813 goto mwl8k_start_disable_irq
;
2816 rc
= mwl8k_queue_work(hw
, &worker
->header
,
2817 priv
->config_wq
, mwl8k_start_wt
);
2822 if (rc
== -ETIMEDOUT
)
2823 printk(KERN_ERR
"%s() timed out\n", __func__
);
2827 mwl8k_start_disable_irq
:
2828 spin_lock_irq(&priv
->tx_lock
);
2829 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
2830 spin_unlock_irq(&priv
->tx_lock
);
2831 free_irq(priv
->pdev
->irq
, hw
);
2833 mwl8k_start_disable_tasklet
:
2834 tasklet_disable(&priv
->tx_reclaim_task
);
2839 struct mwl8k_stop_worker
{
2840 struct mwl8k_work_struct header
;
2843 static int mwl8k_stop_wt(struct work_struct
*wt
)
2845 struct mwl8k_stop_worker
*worker
= (struct mwl8k_stop_worker
*)wt
;
2846 struct ieee80211_hw
*hw
= worker
->header
.hw
;
2848 return mwl8k_cmd_802_11_radio_disable(hw
);
2851 static void mwl8k_stop(struct ieee80211_hw
*hw
)
2854 struct mwl8k_stop_worker
*worker
;
2855 struct mwl8k_priv
*priv
= hw
->priv
;
2858 if (priv
->vif
!= NULL
)
2861 ieee80211_stop_queues(hw
);
2863 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
2867 rc
= mwl8k_queue_work(hw
, &worker
->header
,
2868 priv
->config_wq
, mwl8k_stop_wt
);
2870 if (rc
== -ETIMEDOUT
)
2871 printk(KERN_ERR
"%s() timed out\n", __func__
);
2873 /* Disable interrupts */
2874 spin_lock_irq(&priv
->tx_lock
);
2875 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
2876 spin_unlock_irq(&priv
->tx_lock
);
2877 free_irq(priv
->pdev
->irq
, hw
);
2879 /* Stop finalize join worker */
2880 cancel_work_sync(&priv
->finalize_join_worker
);
2881 if (priv
->beacon_skb
!= NULL
)
2882 dev_kfree_skb(priv
->beacon_skb
);
2884 /* Stop tx reclaim tasklet */
2885 tasklet_disable(&priv
->tx_reclaim_task
);
2887 /* Stop config thread */
2888 flush_workqueue(priv
->config_wq
);
2890 /* Return all skbs to mac80211 */
2891 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++)
2892 mwl8k_txq_reclaim(hw
, i
, 1);
2895 static int mwl8k_add_interface(struct ieee80211_hw
*hw
,
2896 struct ieee80211_if_init_conf
*conf
)
2898 struct mwl8k_priv
*priv
= hw
->priv
;
2899 struct mwl8k_vif
*mwl8k_vif
;
2902 * We only support one active interface at a time.
2904 if (priv
->vif
!= NULL
)
2908 * We only support managed interfaces for now.
2910 if (conf
->type
!= NL80211_IFTYPE_STATION
&&
2911 conf
->type
!= NL80211_IFTYPE_MONITOR
)
2914 /* Clean out driver private area */
2915 mwl8k_vif
= MWL8K_VIF(conf
->vif
);
2916 memset(mwl8k_vif
, 0, sizeof(*mwl8k_vif
));
2918 /* Save the mac address */
2919 memcpy(mwl8k_vif
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
2921 /* Back pointer to parent config block */
2922 mwl8k_vif
->priv
= priv
;
2924 /* Setup initial PHY parameters */
2925 memcpy(mwl8k_vif
->legacy_rates
,
2926 priv
->rates
, sizeof(mwl8k_vif
->legacy_rates
));
2927 mwl8k_vif
->legacy_nrates
= ARRAY_SIZE(priv
->rates
);
2929 /* Set Initial sequence number to zero */
2930 mwl8k_vif
->seqno
= 0;
2932 priv
->vif
= conf
->vif
;
2933 priv
->current_channel
= NULL
;
2938 static void mwl8k_remove_interface(struct ieee80211_hw
*hw
,
2939 struct ieee80211_if_init_conf
*conf
)
2941 struct mwl8k_priv
*priv
= hw
->priv
;
2943 if (priv
->vif
== NULL
)
2949 struct mwl8k_config_worker
{
2950 struct mwl8k_work_struct header
;
2954 static int mwl8k_config_wt(struct work_struct
*wt
)
2956 struct mwl8k_config_worker
*worker
=
2957 (struct mwl8k_config_worker
*)wt
;
2958 struct ieee80211_hw
*hw
= worker
->header
.hw
;
2959 struct ieee80211_conf
*conf
= &hw
->conf
;
2960 struct mwl8k_priv
*priv
= hw
->priv
;
2963 if (mwl8k_cmd_802_11_radio_enable(hw
)) {
2965 goto mwl8k_config_exit
;
2968 priv
->current_channel
= conf
->channel
;
2970 if (mwl8k_cmd_set_rf_channel(hw
, conf
->channel
)) {
2972 goto mwl8k_config_exit
;
2975 if (conf
->power_level
> 18)
2976 conf
->power_level
= 18;
2977 if (mwl8k_cmd_802_11_rf_tx_power(hw
, conf
->power_level
)) {
2979 goto mwl8k_config_exit
;
2982 if (mwl8k_cmd_mimo_config(hw
, 0x7, 0x7))
2989 static int mwl8k_config(struct ieee80211_hw
*hw
, u32 changed
)
2992 struct mwl8k_config_worker
*worker
;
2993 struct mwl8k_priv
*priv
= hw
->priv
;
2995 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
2999 worker
->changed
= changed
;
3000 rc
= mwl8k_queue_work(hw
, &worker
->header
,
3001 priv
->config_wq
, mwl8k_config_wt
);
3002 if (rc
== -ETIMEDOUT
) {
3003 printk(KERN_ERR
"%s() timed out.\n", __func__
);
3010 * mac80211 will crash on anything other than -EINVAL on
3011 * error. Looks like wireless extensions which calls mac80211
3012 * may be the actual culprit...
3014 return rc
? -EINVAL
: 0;
3017 struct mwl8k_bss_info_changed_worker
{
3018 struct mwl8k_work_struct header
;
3019 struct ieee80211_vif
*vif
;
3020 struct ieee80211_bss_conf
*info
;
3024 static int mwl8k_bss_info_changed_wt(struct work_struct
*wt
)
3026 struct mwl8k_bss_info_changed_worker
*worker
=
3027 (struct mwl8k_bss_info_changed_worker
*)wt
;
3028 struct ieee80211_hw
*hw
= worker
->header
.hw
;
3029 struct ieee80211_vif
*vif
= worker
->vif
;
3030 struct ieee80211_bss_conf
*info
= worker
->info
;
3034 struct mwl8k_priv
*priv
= hw
->priv
;
3035 struct mwl8k_vif
*mwl8k_vif
= MWL8K_VIF(vif
);
3037 changed
= worker
->changed
;
3038 priv
->capture_beacon
= false;
3041 memcpy(&mwl8k_vif
->bss_info
, info
,
3042 sizeof(struct ieee80211_bss_conf
));
3045 if (mwl8k_update_rateset(hw
, vif
))
3046 goto mwl8k_bss_info_changed_exit
;
3048 /* Turn on rate adaptation */
3049 if (mwl8k_cmd_use_fixed_rate(hw
, MWL8K_USE_AUTO_RATE
,
3050 MWL8K_UCAST_RATE
, NULL
))
3051 goto mwl8k_bss_info_changed_exit
;
3053 /* Set radio preamble */
3054 if (mwl8k_set_radio_preamble(hw
,
3055 info
->use_short_preamble
))
3056 goto mwl8k_bss_info_changed_exit
;
3059 if (mwl8k_cmd_set_slot(hw
, info
->use_short_slot
?
3060 MWL8K_SHORT_SLOTTIME
: MWL8K_LONG_SLOTTIME
))
3061 goto mwl8k_bss_info_changed_exit
;
3063 /* Update peer rate info */
3064 if (mwl8k_cmd_update_sta_db(hw
, vif
,
3065 MWL8K_STA_DB_MODIFY_ENTRY
))
3066 goto mwl8k_bss_info_changed_exit
;
3069 if (mwl8k_cmd_set_aid(hw
, vif
))
3070 goto mwl8k_bss_info_changed_exit
;
3073 * Finalize the join. Tell rx handler to process
3074 * next beacon from our BSSID.
3076 memcpy(priv
->capture_bssid
, mwl8k_vif
->bssid
, ETH_ALEN
);
3077 priv
->capture_beacon
= true;
3079 mwl8k_cmd_update_sta_db(hw
, vif
, MWL8K_STA_DB_DEL_ENTRY
);
3080 memset(&mwl8k_vif
->bss_info
, 0,
3081 sizeof(struct ieee80211_bss_conf
));
3082 memset(mwl8k_vif
->bssid
, 0, ETH_ALEN
);
3085 mwl8k_bss_info_changed_exit
:
3090 static void mwl8k_bss_info_changed(struct ieee80211_hw
*hw
,
3091 struct ieee80211_vif
*vif
,
3092 struct ieee80211_bss_conf
*info
,
3095 struct mwl8k_bss_info_changed_worker
*worker
;
3096 struct mwl8k_priv
*priv
= hw
->priv
;
3097 struct mwl8k_vif
*mv_vif
= MWL8K_VIF(vif
);
3100 if (changed
& BSS_CHANGED_BSSID
)
3101 memcpy(mv_vif
->bssid
, info
->bssid
, ETH_ALEN
);
3103 if ((changed
& BSS_CHANGED_ASSOC
) == 0)
3106 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
3111 worker
->info
= info
;
3112 worker
->changed
= changed
;
3113 rc
= mwl8k_queue_work(hw
, &worker
->header
,
3115 mwl8k_bss_info_changed_wt
);
3117 if (rc
== -ETIMEDOUT
)
3118 printk(KERN_ERR
"%s() timed out\n", __func__
);
3121 struct mwl8k_configure_filter_worker
{
3122 struct mwl8k_work_struct header
;
3123 unsigned int changed_flags
;
3124 unsigned int *total_flags
;
3126 struct dev_addr_list
*mclist
;
3129 #define MWL8K_SUPPORTED_IF_FLAGS FIF_BCN_PRBRESP_PROMISC
3131 static int mwl8k_configure_filter_wt(struct work_struct
*wt
)
3133 struct mwl8k_configure_filter_worker
*worker
=
3134 (struct mwl8k_configure_filter_worker
*)wt
;
3136 struct ieee80211_hw
*hw
= worker
->header
.hw
;
3137 unsigned int changed_flags
= worker
->changed_flags
;
3138 unsigned int *total_flags
= worker
->total_flags
;
3139 int mc_count
= worker
->mc_count
;
3140 struct dev_addr_list
*mclist
= worker
->mclist
;
3142 struct mwl8k_priv
*priv
= hw
->priv
;
3145 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
3146 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
3147 rc
= mwl8k_cmd_set_pre_scan(hw
);
3151 bssid
= "\x00\x00\x00\x00\x00\x00";
3152 if (priv
->vif
!= NULL
)
3153 bssid
= MWL8K_VIF(priv
->vif
)->bssid
;
3155 rc
= mwl8k_cmd_set_post_scan(hw
, bssid
);
3160 goto mwl8k_configure_filter_exit
;
3162 if (mc_count
> priv
->num_mcaddrs
)
3163 mc_count
= priv
->num_mcaddrs
;
3165 rc
= mwl8k_cmd_mac_multicast_adr(hw
, mc_count
, mclist
);
3168 "%s()Error setting multicast addresses\n",
3172 mwl8k_configure_filter_exit
:
3176 static u64
mwl8k_prepare_multicast(struct ieee80211_hw
*hw
,
3177 int mc_count
, struct dev_addr_list
*mclist
)
3179 struct mwl8k_configure_filter_worker
*worker
;
3181 worker
= kzalloc(sizeof(*worker
), GFP_ATOMIC
);
3187 * XXX: This is _HORRIBLY_ broken!!
3189 * No locking, the mclist pointer might be invalid as soon as this
3190 * function returns, something in the list might be invalidated
3191 * once we get to the worker, etc...
3193 worker
->mc_count
= mc_count
;
3194 worker
->mclist
= mclist
;
3199 static void mwl8k_configure_filter(struct ieee80211_hw
*hw
,
3200 unsigned int changed_flags
,
3201 unsigned int *total_flags
,
3205 struct mwl8k_configure_filter_worker
*worker
= (void *)multicast
;
3206 struct mwl8k_priv
*priv
= hw
->priv
;
3208 /* Clear unsupported feature flags */
3209 *total_flags
&= MWL8K_SUPPORTED_IF_FLAGS
;
3211 if (!(changed_flags
& MWL8K_SUPPORTED_IF_FLAGS
))
3217 worker
->header
.options
= MWL8K_WQ_QUEUE_ONLY
| MWL8K_WQ_TX_WAIT_EMPTY
;
3218 worker
->changed_flags
= changed_flags
;
3219 worker
->total_flags
= total_flags
;
3221 mwl8k_queue_work(hw
, &worker
->header
, priv
->config_wq
,
3222 mwl8k_configure_filter_wt
);
3225 struct mwl8k_set_rts_threshold_worker
{
3226 struct mwl8k_work_struct header
;
3230 static int mwl8k_set_rts_threshold_wt(struct work_struct
*wt
)
3232 struct mwl8k_set_rts_threshold_worker
*worker
=
3233 (struct mwl8k_set_rts_threshold_worker
*)wt
;
3235 struct ieee80211_hw
*hw
= worker
->header
.hw
;
3236 u16 threshold
= (u16
)(worker
->value
);
3239 rc
= mwl8k_rts_threshold(hw
, MWL8K_CMD_SET
, &threshold
);
3244 static int mwl8k_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
3247 struct mwl8k_set_rts_threshold_worker
*worker
;
3248 struct mwl8k_priv
*priv
= hw
->priv
;
3250 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
3254 worker
->value
= value
;
3256 rc
= mwl8k_queue_work(hw
, &worker
->header
,
3258 mwl8k_set_rts_threshold_wt
);
3261 if (rc
== -ETIMEDOUT
) {
3262 printk(KERN_ERR
"%s() timed out\n", __func__
);
3269 struct mwl8k_conf_tx_worker
{
3270 struct mwl8k_work_struct header
;
3272 const struct ieee80211_tx_queue_params
*params
;
3275 static int mwl8k_conf_tx_wt(struct work_struct
*wt
)
3277 struct mwl8k_conf_tx_worker
*worker
=
3278 (struct mwl8k_conf_tx_worker
*)wt
;
3280 struct ieee80211_hw
*hw
= worker
->header
.hw
;
3281 u16 queue
= worker
->queue
;
3282 const struct ieee80211_tx_queue_params
*params
= worker
->params
;
3284 struct mwl8k_priv
*priv
= hw
->priv
;
3287 if (priv
->wmm_mode
== MWL8K_WMM_DISABLE
)
3288 if (mwl8k_set_wmm(hw
, MWL8K_WMM_ENABLE
)) {
3290 goto mwl8k_conf_tx_exit
;
3293 if (mwl8k_set_edca_params(hw
, GET_TXQ(queue
), params
->cw_min
,
3294 params
->cw_max
, params
->aifs
, params
->txop
))
3300 static int mwl8k_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
3301 const struct ieee80211_tx_queue_params
*params
)
3304 struct mwl8k_conf_tx_worker
*worker
;
3305 struct mwl8k_priv
*priv
= hw
->priv
;
3307 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
3311 worker
->queue
= queue
;
3312 worker
->params
= params
;
3313 rc
= mwl8k_queue_work(hw
, &worker
->header
,
3314 priv
->config_wq
, mwl8k_conf_tx_wt
);
3316 if (rc
== -ETIMEDOUT
) {
3317 printk(KERN_ERR
"%s() timed out\n", __func__
);
3323 static int mwl8k_get_tx_stats(struct ieee80211_hw
*hw
,
3324 struct ieee80211_tx_queue_stats
*stats
)
3326 struct mwl8k_priv
*priv
= hw
->priv
;
3327 struct mwl8k_tx_queue
*txq
;
3330 spin_lock_bh(&priv
->tx_lock
);
3331 for (index
= 0; index
< MWL8K_TX_QUEUES
; index
++) {
3332 txq
= priv
->txq
+ index
;
3333 memcpy(&stats
[index
], &txq
->tx_stats
,
3334 sizeof(struct ieee80211_tx_queue_stats
));
3336 spin_unlock_bh(&priv
->tx_lock
);
3340 struct mwl8k_get_stats_worker
{
3341 struct mwl8k_work_struct header
;
3342 struct ieee80211_low_level_stats
*stats
;
3345 static int mwl8k_get_stats_wt(struct work_struct
*wt
)
3347 struct mwl8k_get_stats_worker
*worker
=
3348 (struct mwl8k_get_stats_worker
*)wt
;
3350 return mwl8k_cmd_802_11_get_stat(worker
->header
.hw
, worker
->stats
);
3353 static int mwl8k_get_stats(struct ieee80211_hw
*hw
,
3354 struct ieee80211_low_level_stats
*stats
)
3357 struct mwl8k_get_stats_worker
*worker
;
3358 struct mwl8k_priv
*priv
= hw
->priv
;
3360 worker
= kzalloc(sizeof(*worker
), GFP_KERNEL
);
3364 worker
->stats
= stats
;
3365 rc
= mwl8k_queue_work(hw
, &worker
->header
,
3366 priv
->config_wq
, mwl8k_get_stats_wt
);
3369 if (rc
== -ETIMEDOUT
) {
3370 printk(KERN_ERR
"%s() timed out\n", __func__
);
3377 static const struct ieee80211_ops mwl8k_ops
= {
3379 .start
= mwl8k_start
,
3381 .add_interface
= mwl8k_add_interface
,
3382 .remove_interface
= mwl8k_remove_interface
,
3383 .config
= mwl8k_config
,
3384 .bss_info_changed
= mwl8k_bss_info_changed
,
3385 .prepare_multicast
= mwl8k_prepare_multicast
,
3386 .configure_filter
= mwl8k_configure_filter
,
3387 .set_rts_threshold
= mwl8k_set_rts_threshold
,
3388 .conf_tx
= mwl8k_conf_tx
,
3389 .get_tx_stats
= mwl8k_get_tx_stats
,
3390 .get_stats
= mwl8k_get_stats
,
3393 static void mwl8k_tx_reclaim_handler(unsigned long data
)
3396 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*) data
;
3397 struct mwl8k_priv
*priv
= hw
->priv
;
3399 spin_lock_bh(&priv
->tx_lock
);
3400 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++)
3401 mwl8k_txq_reclaim(hw
, i
, 0);
3403 if (priv
->tx_wait
!= NULL
&& mwl8k_txq_busy(priv
) == 0) {
3404 complete(priv
->tx_wait
);
3405 priv
->tx_wait
= NULL
;
3407 spin_unlock_bh(&priv
->tx_lock
);
3410 static void mwl8k_finalize_join_worker(struct work_struct
*work
)
3412 struct mwl8k_priv
*priv
=
3413 container_of(work
, struct mwl8k_priv
, finalize_join_worker
);
3414 struct sk_buff
*skb
= priv
->beacon_skb
;
3415 u8 dtim
= MWL8K_VIF(priv
->vif
)->bss_info
.dtim_period
;
3417 mwl8k_finalize_join(priv
->hw
, skb
->data
, skb
->len
, dtim
);
3420 priv
->beacon_skb
= NULL
;
3423 static int __devinit
mwl8k_probe(struct pci_dev
*pdev
,
3424 const struct pci_device_id
*id
)
3426 struct ieee80211_hw
*hw
;
3427 struct mwl8k_priv
*priv
;
3432 rc
= pci_enable_device(pdev
);
3434 printk(KERN_ERR
"%s: Cannot enable new PCI device\n",
3439 rc
= pci_request_regions(pdev
, MWL8K_NAME
);
3441 printk(KERN_ERR
"%s: Cannot obtain PCI resources\n",
3446 pci_set_master(pdev
);
3448 hw
= ieee80211_alloc_hw(sizeof(*priv
), &mwl8k_ops
);
3450 printk(KERN_ERR
"%s: ieee80211 alloc failed\n", MWL8K_NAME
);
3458 priv
->hostcmd_wait
= NULL
;
3459 priv
->tx_wait
= NULL
;
3460 priv
->inconfig
= false;
3461 priv
->wmm_mode
= false;
3462 priv
->pending_tx_pkts
= 0;
3463 strncpy(priv
->name
, MWL8K_NAME
, sizeof(priv
->name
));
3465 spin_lock_init(&priv
->fw_lock
);
3467 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
3468 pci_set_drvdata(pdev
, hw
);
3470 priv
->regs
= pci_iomap(pdev
, 1, 0x10000);
3471 if (priv
->regs
== NULL
) {
3472 printk(KERN_ERR
"%s: Cannot map device memory\n", priv
->name
);
3476 memcpy(priv
->channels
, mwl8k_channels
, sizeof(mwl8k_channels
));
3477 priv
->band
.band
= IEEE80211_BAND_2GHZ
;
3478 priv
->band
.channels
= priv
->channels
;
3479 priv
->band
.n_channels
= ARRAY_SIZE(mwl8k_channels
);
3480 priv
->band
.bitrates
= priv
->rates
;
3481 priv
->band
.n_bitrates
= ARRAY_SIZE(mwl8k_rates
);
3482 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band
;
3484 BUILD_BUG_ON(sizeof(priv
->rates
) != sizeof(mwl8k_rates
));
3485 memcpy(priv
->rates
, mwl8k_rates
, sizeof(mwl8k_rates
));
3488 * Extra headroom is the size of the required DMA header
3489 * minus the size of the smallest 802.11 frame (CTS frame).
3491 hw
->extra_tx_headroom
=
3492 sizeof(struct mwl8k_dma_data
) - sizeof(struct ieee80211_cts
);
3494 hw
->channel_change_time
= 10;
3496 hw
->queues
= MWL8K_TX_QUEUES
;
3498 hw
->wiphy
->interface_modes
=
3499 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_MONITOR
);
3501 /* Set rssi and noise values to dBm */
3502 hw
->flags
|= IEEE80211_HW_SIGNAL_DBM
| IEEE80211_HW_NOISE_DBM
;
3503 hw
->vif_data_size
= sizeof(struct mwl8k_vif
);
3506 /* Set default radio state and preamble */
3507 priv
->radio_preamble
= MWL8K_RADIO_DEFAULT_PREAMBLE
;
3510 /* Finalize join worker */
3511 INIT_WORK(&priv
->finalize_join_worker
, mwl8k_finalize_join_worker
);
3513 /* TX reclaim tasklet */
3514 tasklet_init(&priv
->tx_reclaim_task
,
3515 mwl8k_tx_reclaim_handler
, (unsigned long)hw
);
3516 tasklet_disable(&priv
->tx_reclaim_task
);
3518 /* Config workthread */
3519 priv
->config_wq
= create_singlethread_workqueue("mwl8k_config");
3520 if (priv
->config_wq
== NULL
)
3523 /* Power management cookie */
3524 priv
->cookie
= pci_alloc_consistent(priv
->pdev
, 4, &priv
->cookie_dma
);
3525 if (priv
->cookie
== NULL
)
3528 rc
= mwl8k_rxq_init(hw
, 0);
3531 rxq_refill(hw
, 0, INT_MAX
);
3533 spin_lock_init(&priv
->tx_lock
);
3535 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++) {
3536 rc
= mwl8k_txq_init(hw
, i
);
3538 goto err_free_queues
;
3541 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS
);
3542 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
3543 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL
);
3544 iowrite32(0xffffffff, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK
);
3546 rc
= request_irq(priv
->pdev
->irq
, &mwl8k_interrupt
,
3547 IRQF_SHARED
, MWL8K_NAME
, hw
);
3549 printk(KERN_ERR
"%s: failed to register IRQ handler\n",
3551 goto err_free_queues
;
3554 /* Reset firmware and hardware */
3555 mwl8k_hw_reset(priv
);
3557 /* Ask userland hotplug daemon for the device firmware */
3558 rc
= mwl8k_request_firmware(priv
, (u32
)id
->driver_data
);
3560 printk(KERN_ERR
"%s: Firmware files not found\n", priv
->name
);
3564 /* Load firmware into hardware */
3565 rc
= mwl8k_load_firmware(priv
);
3567 printk(KERN_ERR
"%s: Cannot start firmware\n", priv
->name
);
3568 goto err_stop_firmware
;
3571 /* Reclaim memory once firmware is successfully loaded */
3572 mwl8k_release_firmware(priv
);
3575 * Temporarily enable interrupts. Initial firmware host
3576 * commands use interrupts and avoids polling. Disable
3577 * interrupts when done.
3579 iowrite32(MWL8K_A2H_EVENTS
, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
3581 /* Get config data, mac addrs etc */
3582 rc
= mwl8k_cmd_get_hw_spec(hw
);
3584 printk(KERN_ERR
"%s: Cannot initialise firmware\n", priv
->name
);
3585 goto err_stop_firmware
;
3588 /* Turn radio off */
3589 rc
= mwl8k_cmd_802_11_radio_disable(hw
);
3591 printk(KERN_ERR
"%s: Cannot disable\n", priv
->name
);
3592 goto err_stop_firmware
;
3595 /* Disable interrupts */
3596 spin_lock_irq(&priv
->tx_lock
);
3597 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
3598 spin_unlock_irq(&priv
->tx_lock
);
3599 free_irq(priv
->pdev
->irq
, hw
);
3601 rc
= ieee80211_register_hw(hw
);
3603 printk(KERN_ERR
"%s: Cannot register device\n", priv
->name
);
3604 goto err_stop_firmware
;
3607 fw
= (u8
*)&priv
->fw_rev
;
3608 printk(KERN_INFO
"%s: 88W%u %s\n", priv
->name
, priv
->part_num
,
3610 printk(KERN_INFO
"%s: Driver Ver:%s Firmware Ver:%u.%u.%u.%u\n",
3611 priv
->name
, MWL8K_VERSION
, fw
[3], fw
[2], fw
[1], fw
[0]);
3612 printk(KERN_INFO
"%s: MAC Address: %pM\n", priv
->name
,
3613 hw
->wiphy
->perm_addr
);
3618 mwl8k_hw_reset(priv
);
3619 mwl8k_release_firmware(priv
);
3622 spin_lock_irq(&priv
->tx_lock
);
3623 iowrite32(0, priv
->regs
+ MWL8K_HIU_A2H_INTERRUPT_MASK
);
3624 spin_unlock_irq(&priv
->tx_lock
);
3625 free_irq(priv
->pdev
->irq
, hw
);
3628 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++)
3629 mwl8k_txq_deinit(hw
, i
);
3630 mwl8k_rxq_deinit(hw
, 0);
3633 if (priv
->cookie
!= NULL
)
3634 pci_free_consistent(priv
->pdev
, 4,
3635 priv
->cookie
, priv
->cookie_dma
);
3637 if (priv
->regs
!= NULL
)
3638 pci_iounmap(pdev
, priv
->regs
);
3640 if (priv
->config_wq
!= NULL
)
3641 destroy_workqueue(priv
->config_wq
);
3643 pci_set_drvdata(pdev
, NULL
);
3644 ieee80211_free_hw(hw
);
3647 pci_release_regions(pdev
);
3648 pci_disable_device(pdev
);
3653 static void __devexit
mwl8k_shutdown(struct pci_dev
*pdev
)
3655 printk(KERN_ERR
"===>%s(%u)\n", __func__
, __LINE__
);
3658 static void __devexit
mwl8k_remove(struct pci_dev
*pdev
)
3660 struct ieee80211_hw
*hw
= pci_get_drvdata(pdev
);
3661 struct mwl8k_priv
*priv
;
3668 ieee80211_stop_queues(hw
);
3670 ieee80211_unregister_hw(hw
);
3672 /* Remove tx reclaim tasklet */
3673 tasklet_kill(&priv
->tx_reclaim_task
);
3675 /* Stop config thread */
3676 destroy_workqueue(priv
->config_wq
);
3679 mwl8k_hw_reset(priv
);
3681 /* Return all skbs to mac80211 */
3682 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++)
3683 mwl8k_txq_reclaim(hw
, i
, 1);
3685 for (i
= 0; i
< MWL8K_TX_QUEUES
; i
++)
3686 mwl8k_txq_deinit(hw
, i
);
3688 mwl8k_rxq_deinit(hw
, 0);
3690 pci_free_consistent(priv
->pdev
, 4,
3691 priv
->cookie
, priv
->cookie_dma
);
3693 pci_iounmap(pdev
, priv
->regs
);
3694 pci_set_drvdata(pdev
, NULL
);
3695 ieee80211_free_hw(hw
);
3696 pci_release_regions(pdev
);
3697 pci_disable_device(pdev
);
3700 static struct pci_driver mwl8k_driver
= {
3702 .id_table
= mwl8k_table
,
3703 .probe
= mwl8k_probe
,
3704 .remove
= __devexit_p(mwl8k_remove
),
3705 .shutdown
= __devexit_p(mwl8k_shutdown
),
3708 static int __init
mwl8k_init(void)
3710 return pci_register_driver(&mwl8k_driver
);
3713 static void __exit
mwl8k_exit(void)
3715 pci_unregister_driver(&mwl8k_driver
);
3718 module_init(mwl8k_init
);
3719 module_exit(mwl8k_exit
);