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Commit | Line | Data |
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a66098da | 1 | /* |
ce9e2e1b LB |
2 | * drivers/net/wireless/mwl8k.c |
3 | * Driver for Marvell TOPDOG 802.11 Wireless cards | |
a66098da | 4 | * |
a145d575 | 5 | * Copyright (C) 2008-2009 Marvell Semiconductor Inc. |
a66098da LB |
6 | * |
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. | |
10 | */ | |
11 | ||
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> | |
25 | ||
26 | #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver" | |
27 | #define MWL8K_NAME KBUILD_MODNAME | |
a145d575 | 28 | #define MWL8K_VERSION "0.10" |
a66098da | 29 | |
a66098da LB |
30 | static DEFINE_PCI_DEVICE_TABLE(mwl8k_table) = { |
31 | { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = 8687, }, | |
32 | { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = 8687, }, | |
33 | { } | |
34 | }; | |
35 | MODULE_DEVICE_TABLE(pci, mwl8k_table); | |
36 | ||
a66098da LB |
37 | /* Register definitions */ |
38 | #define MWL8K_HIU_GEN_PTR 0x00000c10 | |
ce9e2e1b LB |
39 | #define MWL8K_MODE_STA 0x0000005a |
40 | #define MWL8K_MODE_AP 0x000000a5 | |
a66098da | 41 | #define MWL8K_HIU_INT_CODE 0x00000c14 |
ce9e2e1b LB |
42 | #define MWL8K_FWSTA_READY 0xf0f1f2f4 |
43 | #define MWL8K_FWAP_READY 0xf1f2f4a5 | |
44 | #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 | |
a66098da LB |
45 | #define MWL8K_HIU_SCRATCH 0x00000c40 |
46 | ||
47 | /* Host->device communications */ | |
48 | #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18 | |
49 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c | |
50 | #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 | |
51 | #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 | |
52 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 | |
ce9e2e1b LB |
53 | #define MWL8K_H2A_INT_DUMMY (1 << 20) |
54 | #define MWL8K_H2A_INT_RESET (1 << 15) | |
55 | #define MWL8K_H2A_INT_DOORBELL (1 << 1) | |
56 | #define MWL8K_H2A_INT_PPA_READY (1 << 0) | |
a66098da LB |
57 | |
58 | /* Device->host communications */ | |
59 | #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c | |
60 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30 | |
61 | #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 | |
62 | #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 | |
63 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c | |
ce9e2e1b LB |
64 | #define MWL8K_A2H_INT_DUMMY (1 << 20) |
65 | #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) | |
66 | #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) | |
67 | #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) | |
68 | #define MWL8K_A2H_INT_RADIO_ON (1 << 6) | |
69 | #define MWL8K_A2H_INT_RADIO_OFF (1 << 5) | |
70 | #define MWL8K_A2H_INT_MAC_EVENT (1 << 3) | |
71 | #define MWL8K_A2H_INT_OPC_DONE (1 << 2) | |
72 | #define MWL8K_A2H_INT_RX_READY (1 << 1) | |
73 | #define MWL8K_A2H_INT_TX_DONE (1 << 0) | |
a66098da LB |
74 | |
75 | #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ | |
76 | MWL8K_A2H_INT_CHNL_SWITCHED | \ | |
77 | MWL8K_A2H_INT_QUEUE_EMPTY | \ | |
78 | MWL8K_A2H_INT_RADAR_DETECT | \ | |
79 | MWL8K_A2H_INT_RADIO_ON | \ | |
80 | MWL8K_A2H_INT_RADIO_OFF | \ | |
81 | MWL8K_A2H_INT_MAC_EVENT | \ | |
82 | MWL8K_A2H_INT_OPC_DONE | \ | |
83 | MWL8K_A2H_INT_RX_READY | \ | |
84 | MWL8K_A2H_INT_TX_DONE) | |
85 | ||
86 | /* WME stream classes */ | |
87 | #define WME_AC_BE 0 /* best effort */ | |
88 | #define WME_AC_BK 1 /* background */ | |
89 | #define WME_AC_VI 2 /* video */ | |
90 | #define WME_AC_VO 3 /* voice */ | |
91 | ||
92 | #define MWL8K_RX_QUEUES 1 | |
93 | #define MWL8K_TX_QUEUES 4 | |
94 | ||
95 | struct mwl8k_rx_queue { | |
96 | int rx_desc_count; | |
97 | ||
98 | /* hw receives here */ | |
99 | int rx_head; | |
100 | ||
101 | /* refill descs here */ | |
102 | int rx_tail; | |
103 | ||
104 | struct mwl8k_rx_desc *rx_desc_area; | |
105 | dma_addr_t rx_desc_dma; | |
106 | struct sk_buff **rx_skb; | |
107 | }; | |
108 | ||
a66098da LB |
109 | struct mwl8k_tx_queue { |
110 | /* hw transmits here */ | |
111 | int tx_head; | |
112 | ||
113 | /* sw appends here */ | |
114 | int tx_tail; | |
115 | ||
116 | struct ieee80211_tx_queue_stats tx_stats; | |
117 | struct mwl8k_tx_desc *tx_desc_area; | |
118 | dma_addr_t tx_desc_dma; | |
76266b2a | 119 | struct sk_buff **tx_skb; |
a66098da LB |
120 | }; |
121 | ||
122 | /* Pointers to the firmware data and meta information about it. */ | |
123 | struct mwl8k_firmware { | |
124 | /* Microcode */ | |
125 | struct firmware *ucode; | |
126 | ||
127 | /* Boot helper code */ | |
128 | struct firmware *helper; | |
129 | }; | |
130 | ||
131 | struct mwl8k_priv { | |
132 | void __iomem *regs; | |
133 | struct ieee80211_hw *hw; | |
134 | ||
135 | struct pci_dev *pdev; | |
a66098da LB |
136 | |
137 | /* firmware files and meta data */ | |
138 | struct mwl8k_firmware fw; | |
139 | u32 part_num; | |
140 | ||
618952a7 LB |
141 | /* firmware access */ |
142 | struct mutex fw_mutex; | |
143 | struct task_struct *fw_mutex_owner; | |
144 | int fw_mutex_depth; | |
618952a7 LB |
145 | struct completion *hostcmd_wait; |
146 | ||
a66098da LB |
147 | /* lock held over TX and TX reap */ |
148 | spinlock_t tx_lock; | |
a66098da | 149 | |
88de754a LB |
150 | /* TX quiesce completion, protected by fw_mutex and tx_lock */ |
151 | struct completion *tx_wait; | |
152 | ||
a66098da | 153 | struct ieee80211_vif *vif; |
a66098da LB |
154 | |
155 | struct ieee80211_channel *current_channel; | |
156 | ||
157 | /* power management status cookie from firmware */ | |
158 | u32 *cookie; | |
159 | dma_addr_t cookie_dma; | |
160 | ||
161 | u16 num_mcaddrs; | |
a66098da | 162 | u8 hw_rev; |
2aa7b01f | 163 | u32 fw_rev; |
a66098da LB |
164 | |
165 | /* | |
166 | * Running count of TX packets in flight, to avoid | |
167 | * iterating over the transmit rings each time. | |
168 | */ | |
169 | int pending_tx_pkts; | |
170 | ||
171 | struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; | |
172 | struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; | |
173 | ||
174 | /* PHY parameters */ | |
175 | struct ieee80211_supported_band band; | |
176 | struct ieee80211_channel channels[14]; | |
177 | struct ieee80211_rate rates[12]; | |
178 | ||
c46563b7 | 179 | bool radio_on; |
68ce3884 | 180 | bool radio_short_preamble; |
0439b1f5 | 181 | bool wmm_enabled; |
a66098da | 182 | |
a66098da LB |
183 | /* XXX need to convert this to handle multiple interfaces */ |
184 | bool capture_beacon; | |
d89173f2 | 185 | u8 capture_bssid[ETH_ALEN]; |
a66098da LB |
186 | struct sk_buff *beacon_skb; |
187 | ||
188 | /* | |
189 | * This FJ worker has to be global as it is scheduled from the | |
190 | * RX handler. At this point we don't know which interface it | |
191 | * belongs to until the list of bssids waiting to complete join | |
192 | * is checked. | |
193 | */ | |
194 | struct work_struct finalize_join_worker; | |
195 | ||
196 | /* Tasklet to reclaim TX descriptors and buffers after tx */ | |
197 | struct tasklet_struct tx_reclaim_task; | |
198 | ||
199 | /* Work thread to serialize configuration requests */ | |
200 | struct workqueue_struct *config_wq; | |
a66098da LB |
201 | }; |
202 | ||
203 | /* Per interface specific private data */ | |
204 | struct mwl8k_vif { | |
a66098da LB |
205 | /* backpointer to parent config block */ |
206 | struct mwl8k_priv *priv; | |
207 | ||
208 | /* BSS config of AP or IBSS from mac80211*/ | |
209 | struct ieee80211_bss_conf bss_info; | |
210 | ||
211 | /* BSSID of AP or IBSS */ | |
d89173f2 LB |
212 | u8 bssid[ETH_ALEN]; |
213 | u8 mac_addr[ETH_ALEN]; | |
a66098da LB |
214 | |
215 | /* | |
216 | * Subset of supported legacy rates. | |
217 | * Intersection of AP and STA supported rates. | |
218 | */ | |
219 | struct ieee80211_rate legacy_rates[12]; | |
220 | ||
221 | /* number of supported legacy rates */ | |
222 | u8 legacy_nrates; | |
223 | ||
a66098da LB |
224 | /* Index into station database.Returned by update_sta_db call */ |
225 | u8 peer_id; | |
226 | ||
227 | /* Non AMPDU sequence number assigned by driver */ | |
228 | u16 seqno; | |
a66098da LB |
229 | }; |
230 | ||
a94cc97e | 231 | #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) |
a66098da LB |
232 | |
233 | static const struct ieee80211_channel mwl8k_channels[] = { | |
234 | { .center_freq = 2412, .hw_value = 1, }, | |
235 | { .center_freq = 2417, .hw_value = 2, }, | |
236 | { .center_freq = 2422, .hw_value = 3, }, | |
237 | { .center_freq = 2427, .hw_value = 4, }, | |
238 | { .center_freq = 2432, .hw_value = 5, }, | |
239 | { .center_freq = 2437, .hw_value = 6, }, | |
240 | { .center_freq = 2442, .hw_value = 7, }, | |
241 | { .center_freq = 2447, .hw_value = 8, }, | |
242 | { .center_freq = 2452, .hw_value = 9, }, | |
243 | { .center_freq = 2457, .hw_value = 10, }, | |
244 | { .center_freq = 2462, .hw_value = 11, }, | |
245 | }; | |
246 | ||
247 | static const struct ieee80211_rate mwl8k_rates[] = { | |
248 | { .bitrate = 10, .hw_value = 2, }, | |
249 | { .bitrate = 20, .hw_value = 4, }, | |
250 | { .bitrate = 55, .hw_value = 11, }, | |
251 | { .bitrate = 60, .hw_value = 12, }, | |
252 | { .bitrate = 90, .hw_value = 18, }, | |
253 | { .bitrate = 110, .hw_value = 22, }, | |
254 | { .bitrate = 120, .hw_value = 24, }, | |
255 | { .bitrate = 180, .hw_value = 36, }, | |
256 | { .bitrate = 240, .hw_value = 48, }, | |
257 | { .bitrate = 360, .hw_value = 72, }, | |
258 | { .bitrate = 480, .hw_value = 96, }, | |
259 | { .bitrate = 540, .hw_value = 108, }, | |
260 | }; | |
261 | ||
a66098da LB |
262 | /* Set or get info from Firmware */ |
263 | #define MWL8K_CMD_SET 0x0001 | |
264 | #define MWL8K_CMD_GET 0x0000 | |
265 | ||
266 | /* Firmware command codes */ | |
267 | #define MWL8K_CMD_CODE_DNLD 0x0001 | |
268 | #define MWL8K_CMD_GET_HW_SPEC 0x0003 | |
269 | #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 | |
270 | #define MWL8K_CMD_GET_STAT 0x0014 | |
ff45fc60 LB |
271 | #define MWL8K_CMD_RADIO_CONTROL 0x001c |
272 | #define MWL8K_CMD_RF_TX_POWER 0x001e | |
a66098da LB |
273 | #define MWL8K_CMD_SET_PRE_SCAN 0x0107 |
274 | #define MWL8K_CMD_SET_POST_SCAN 0x0108 | |
ff45fc60 LB |
275 | #define MWL8K_CMD_SET_RF_CHANNEL 0x010a |
276 | #define MWL8K_CMD_SET_AID 0x010d | |
277 | #define MWL8K_CMD_SET_RATE 0x0110 | |
278 | #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 | |
279 | #define MWL8K_CMD_RTS_THRESHOLD 0x0113 | |
a66098da | 280 | #define MWL8K_CMD_SET_SLOT 0x0114 |
ff45fc60 LB |
281 | #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 |
282 | #define MWL8K_CMD_SET_WMM_MODE 0x0123 | |
a66098da | 283 | #define MWL8K_CMD_MIMO_CONFIG 0x0125 |
ff45fc60 | 284 | #define MWL8K_CMD_USE_FIXED_RATE 0x0126 |
a66098da | 285 | #define MWL8K_CMD_ENABLE_SNIFFER 0x0150 |
a66098da | 286 | #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 |
ff45fc60 | 287 | #define MWL8K_CMD_UPDATE_STADB 0x1123 |
a66098da LB |
288 | |
289 | static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) | |
290 | { | |
291 | #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ | |
292 | snprintf(buf, bufsize, "%s", #x);\ | |
293 | return buf;\ | |
294 | } while (0) | |
ce9e2e1b | 295 | switch (cmd & ~0x8000) { |
a66098da LB |
296 | MWL8K_CMDNAME(CODE_DNLD); |
297 | MWL8K_CMDNAME(GET_HW_SPEC); | |
298 | MWL8K_CMDNAME(MAC_MULTICAST_ADR); | |
299 | MWL8K_CMDNAME(GET_STAT); | |
300 | MWL8K_CMDNAME(RADIO_CONTROL); | |
301 | MWL8K_CMDNAME(RF_TX_POWER); | |
302 | MWL8K_CMDNAME(SET_PRE_SCAN); | |
303 | MWL8K_CMDNAME(SET_POST_SCAN); | |
304 | MWL8K_CMDNAME(SET_RF_CHANNEL); | |
ff45fc60 LB |
305 | MWL8K_CMDNAME(SET_AID); |
306 | MWL8K_CMDNAME(SET_RATE); | |
307 | MWL8K_CMDNAME(SET_FINALIZE_JOIN); | |
308 | MWL8K_CMDNAME(RTS_THRESHOLD); | |
a66098da | 309 | MWL8K_CMDNAME(SET_SLOT); |
ff45fc60 LB |
310 | MWL8K_CMDNAME(SET_EDCA_PARAMS); |
311 | MWL8K_CMDNAME(SET_WMM_MODE); | |
a66098da | 312 | MWL8K_CMDNAME(MIMO_CONFIG); |
ff45fc60 | 313 | MWL8K_CMDNAME(USE_FIXED_RATE); |
a66098da | 314 | MWL8K_CMDNAME(ENABLE_SNIFFER); |
a66098da | 315 | MWL8K_CMDNAME(SET_RATEADAPT_MODE); |
ff45fc60 | 316 | MWL8K_CMDNAME(UPDATE_STADB); |
a66098da LB |
317 | default: |
318 | snprintf(buf, bufsize, "0x%x", cmd); | |
319 | } | |
320 | #undef MWL8K_CMDNAME | |
321 | ||
322 | return buf; | |
323 | } | |
324 | ||
325 | /* Hardware and firmware reset */ | |
326 | static void mwl8k_hw_reset(struct mwl8k_priv *priv) | |
327 | { | |
328 | iowrite32(MWL8K_H2A_INT_RESET, | |
329 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
330 | iowrite32(MWL8K_H2A_INT_RESET, | |
331 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
332 | msleep(20); | |
333 | } | |
334 | ||
335 | /* Release fw image */ | |
336 | static void mwl8k_release_fw(struct firmware **fw) | |
337 | { | |
338 | if (*fw == NULL) | |
339 | return; | |
340 | release_firmware(*fw); | |
341 | *fw = NULL; | |
342 | } | |
343 | ||
344 | static void mwl8k_release_firmware(struct mwl8k_priv *priv) | |
345 | { | |
346 | mwl8k_release_fw(&priv->fw.ucode); | |
347 | mwl8k_release_fw(&priv->fw.helper); | |
348 | } | |
349 | ||
350 | /* Request fw image */ | |
351 | static int mwl8k_request_fw(struct mwl8k_priv *priv, | |
c2c357ce | 352 | const char *fname, struct firmware **fw) |
a66098da LB |
353 | { |
354 | /* release current image */ | |
355 | if (*fw != NULL) | |
356 | mwl8k_release_fw(fw); | |
357 | ||
358 | return request_firmware((const struct firmware **)fw, | |
c2c357ce | 359 | fname, &priv->pdev->dev); |
a66098da LB |
360 | } |
361 | ||
362 | static int mwl8k_request_firmware(struct mwl8k_priv *priv, u32 part_num) | |
363 | { | |
364 | u8 filename[64]; | |
365 | int rc; | |
366 | ||
367 | priv->part_num = part_num; | |
368 | ||
369 | snprintf(filename, sizeof(filename), | |
370 | "mwl8k/helper_%u.fw", priv->part_num); | |
371 | ||
372 | rc = mwl8k_request_fw(priv, filename, &priv->fw.helper); | |
373 | if (rc) { | |
c2c357ce LB |
374 | printk(KERN_ERR "%s: Error requesting helper firmware " |
375 | "file %s\n", pci_name(priv->pdev), filename); | |
a66098da LB |
376 | return rc; |
377 | } | |
378 | ||
379 | snprintf(filename, sizeof(filename), | |
380 | "mwl8k/fmimage_%u.fw", priv->part_num); | |
381 | ||
382 | rc = mwl8k_request_fw(priv, filename, &priv->fw.ucode); | |
383 | if (rc) { | |
c2c357ce LB |
384 | printk(KERN_ERR "%s: Error requesting firmware file %s\n", |
385 | pci_name(priv->pdev), filename); | |
a66098da LB |
386 | mwl8k_release_fw(&priv->fw.helper); |
387 | return rc; | |
388 | } | |
389 | ||
390 | return 0; | |
391 | } | |
392 | ||
393 | struct mwl8k_cmd_pkt { | |
394 | __le16 code; | |
395 | __le16 length; | |
396 | __le16 seq_num; | |
397 | __le16 result; | |
398 | char payload[0]; | |
399 | } __attribute__((packed)); | |
400 | ||
401 | /* | |
402 | * Firmware loading. | |
403 | */ | |
404 | static int | |
405 | mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length) | |
406 | { | |
407 | void __iomem *regs = priv->regs; | |
408 | dma_addr_t dma_addr; | |
a66098da LB |
409 | int loops; |
410 | ||
411 | dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE); | |
412 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
413 | return -ENOMEM; | |
414 | ||
415 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
416 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
417 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
418 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
419 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
420 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
421 | ||
a66098da LB |
422 | loops = 1000; |
423 | do { | |
424 | u32 int_code; | |
425 | ||
426 | int_code = ioread32(regs + MWL8K_HIU_INT_CODE); | |
427 | if (int_code == MWL8K_INT_CODE_CMD_FINISHED) { | |
428 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
a66098da LB |
429 | break; |
430 | } | |
431 | ||
432 | udelay(1); | |
433 | } while (--loops); | |
434 | ||
435 | pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); | |
436 | ||
d4b70570 | 437 | return loops ? 0 : -ETIMEDOUT; |
a66098da LB |
438 | } |
439 | ||
440 | static int mwl8k_load_fw_image(struct mwl8k_priv *priv, | |
441 | const u8 *data, size_t length) | |
442 | { | |
443 | struct mwl8k_cmd_pkt *cmd; | |
444 | int done; | |
445 | int rc = 0; | |
446 | ||
447 | cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); | |
448 | if (cmd == NULL) | |
449 | return -ENOMEM; | |
450 | ||
451 | cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); | |
452 | cmd->seq_num = 0; | |
453 | cmd->result = 0; | |
454 | ||
455 | done = 0; | |
456 | while (length) { | |
457 | int block_size = length > 256 ? 256 : length; | |
458 | ||
459 | memcpy(cmd->payload, data + done, block_size); | |
460 | cmd->length = cpu_to_le16(block_size); | |
461 | ||
462 | rc = mwl8k_send_fw_load_cmd(priv, cmd, | |
463 | sizeof(*cmd) + block_size); | |
464 | if (rc) | |
465 | break; | |
466 | ||
467 | done += block_size; | |
468 | length -= block_size; | |
469 | } | |
470 | ||
471 | if (!rc) { | |
472 | cmd->length = 0; | |
473 | rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); | |
474 | } | |
475 | ||
476 | kfree(cmd); | |
477 | ||
478 | return rc; | |
479 | } | |
480 | ||
481 | static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, | |
482 | const u8 *data, size_t length) | |
483 | { | |
484 | unsigned char *buffer; | |
485 | int may_continue, rc = 0; | |
486 | u32 done, prev_block_size; | |
487 | ||
488 | buffer = kmalloc(1024, GFP_KERNEL); | |
489 | if (buffer == NULL) | |
490 | return -ENOMEM; | |
491 | ||
492 | done = 0; | |
493 | prev_block_size = 0; | |
494 | may_continue = 1000; | |
495 | while (may_continue > 0) { | |
496 | u32 block_size; | |
497 | ||
498 | block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); | |
499 | if (block_size & 1) { | |
500 | block_size &= ~1; | |
501 | may_continue--; | |
502 | } else { | |
503 | done += prev_block_size; | |
504 | length -= prev_block_size; | |
505 | } | |
506 | ||
507 | if (block_size > 1024 || block_size > length) { | |
508 | rc = -EOVERFLOW; | |
509 | break; | |
510 | } | |
511 | ||
512 | if (length == 0) { | |
513 | rc = 0; | |
514 | break; | |
515 | } | |
516 | ||
517 | if (block_size == 0) { | |
518 | rc = -EPROTO; | |
519 | may_continue--; | |
520 | udelay(1); | |
521 | continue; | |
522 | } | |
523 | ||
524 | prev_block_size = block_size; | |
525 | memcpy(buffer, data + done, block_size); | |
526 | ||
527 | rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); | |
528 | if (rc) | |
529 | break; | |
530 | } | |
531 | ||
532 | if (!rc && length != 0) | |
533 | rc = -EREMOTEIO; | |
534 | ||
535 | kfree(buffer); | |
536 | ||
537 | return rc; | |
538 | } | |
539 | ||
c2c357ce | 540 | static int mwl8k_load_firmware(struct ieee80211_hw *hw) |
a66098da | 541 | { |
c2c357ce LB |
542 | struct mwl8k_priv *priv = hw->priv; |
543 | struct firmware *fw = priv->fw.ucode; | |
544 | int rc; | |
545 | int loops; | |
546 | ||
547 | if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { | |
548 | struct firmware *helper = priv->fw.helper; | |
a66098da | 549 | |
c2c357ce LB |
550 | if (helper == NULL) { |
551 | printk(KERN_ERR "%s: helper image needed but none " | |
552 | "given\n", pci_name(priv->pdev)); | |
553 | return -EINVAL; | |
554 | } | |
a66098da | 555 | |
c2c357ce | 556 | rc = mwl8k_load_fw_image(priv, helper->data, helper->size); |
a66098da LB |
557 | if (rc) { |
558 | printk(KERN_ERR "%s: unable to load firmware " | |
c2c357ce | 559 | "helper image\n", pci_name(priv->pdev)); |
a66098da LB |
560 | return rc; |
561 | } | |
562 | msleep(1); | |
563 | ||
c2c357ce | 564 | rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); |
a66098da | 565 | } else { |
c2c357ce | 566 | rc = mwl8k_load_fw_image(priv, fw->data, fw->size); |
a66098da LB |
567 | } |
568 | ||
569 | if (rc) { | |
c2c357ce LB |
570 | printk(KERN_ERR "%s: unable to load firmware image\n", |
571 | pci_name(priv->pdev)); | |
a66098da LB |
572 | return rc; |
573 | } | |
574 | ||
575 | iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); | |
576 | msleep(1); | |
577 | ||
578 | loops = 200000; | |
579 | do { | |
580 | if (ioread32(priv->regs + MWL8K_HIU_INT_CODE) | |
581 | == MWL8K_FWSTA_READY) | |
582 | break; | |
583 | udelay(1); | |
584 | } while (--loops); | |
585 | ||
586 | return loops ? 0 : -ETIMEDOUT; | |
587 | } | |
588 | ||
589 | ||
590 | /* | |
591 | * Defines shared between transmission and reception. | |
592 | */ | |
593 | /* HT control fields for firmware */ | |
594 | struct ewc_ht_info { | |
595 | __le16 control1; | |
596 | __le16 control2; | |
597 | __le16 control3; | |
598 | } __attribute__((packed)); | |
599 | ||
600 | /* Firmware Station database operations */ | |
601 | #define MWL8K_STA_DB_ADD_ENTRY 0 | |
602 | #define MWL8K_STA_DB_MODIFY_ENTRY 1 | |
603 | #define MWL8K_STA_DB_DEL_ENTRY 2 | |
604 | #define MWL8K_STA_DB_FLUSH 3 | |
605 | ||
606 | /* Peer Entry flags - used to define the type of the peer node */ | |
607 | #define MWL8K_PEER_TYPE_ACCESSPOINT 2 | |
a66098da LB |
608 | |
609 | #define MWL8K_IEEE_LEGACY_DATA_RATES 12 | |
610 | #define MWL8K_MCS_BITMAP_SIZE 16 | |
a66098da LB |
611 | |
612 | struct peer_capability_info { | |
613 | /* Peer type - AP vs. STA. */ | |
614 | __u8 peer_type; | |
615 | ||
616 | /* Basic 802.11 capabilities from assoc resp. */ | |
617 | __le16 basic_caps; | |
618 | ||
619 | /* Set if peer supports 802.11n high throughput (HT). */ | |
620 | __u8 ht_support; | |
621 | ||
622 | /* Valid if HT is supported. */ | |
623 | __le16 ht_caps; | |
624 | __u8 extended_ht_caps; | |
625 | struct ewc_ht_info ewc_info; | |
626 | ||
627 | /* Legacy rate table. Intersection of our rates and peer rates. */ | |
628 | __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
629 | ||
630 | /* HT rate table. Intersection of our rates and peer rates. */ | |
631 | __u8 ht_rates[MWL8K_MCS_BITMAP_SIZE]; | |
c23b5a69 | 632 | __u8 pad[16]; |
a66098da LB |
633 | |
634 | /* If set, interoperability mode, no proprietary extensions. */ | |
635 | __u8 interop; | |
636 | __u8 pad2; | |
637 | __u8 station_id; | |
638 | __le16 amsdu_enabled; | |
639 | } __attribute__((packed)); | |
640 | ||
641 | /* Inline functions to manipulate QoS field in data descriptor. */ | |
a66098da LB |
642 | static inline u16 mwl8k_qos_setbit_eosp(u16 qos) |
643 | { | |
644 | u16 val_mask = 1 << 4; | |
645 | ||
646 | /* End of Service Period Bit 4 */ | |
647 | return qos | val_mask; | |
648 | } | |
649 | ||
650 | static inline u16 mwl8k_qos_setbit_ack(u16 qos, u8 ack_policy) | |
651 | { | |
652 | u16 val_mask = 0x3; | |
653 | u8 shift = 5; | |
654 | u16 qos_mask = ~(val_mask << shift); | |
655 | ||
656 | /* Ack Policy Bit 5-6 */ | |
657 | return (qos & qos_mask) | ((ack_policy & val_mask) << shift); | |
658 | } | |
659 | ||
660 | static inline u16 mwl8k_qos_setbit_amsdu(u16 qos) | |
661 | { | |
662 | u16 val_mask = 1 << 7; | |
663 | ||
664 | /* AMSDU present Bit 7 */ | |
665 | return qos | val_mask; | |
666 | } | |
667 | ||
668 | static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len) | |
669 | { | |
670 | u16 val_mask = 0xff; | |
671 | u8 shift = 8; | |
672 | u16 qos_mask = ~(val_mask << shift); | |
673 | ||
674 | /* Queue Length Bits 8-15 */ | |
675 | return (qos & qos_mask) | ((len & val_mask) << shift); | |
676 | } | |
677 | ||
678 | /* DMA header used by firmware and hardware. */ | |
679 | struct mwl8k_dma_data { | |
680 | __le16 fwlen; | |
681 | struct ieee80211_hdr wh; | |
682 | } __attribute__((packed)); | |
683 | ||
684 | /* Routines to add/remove DMA header from skb. */ | |
76266b2a | 685 | static inline void mwl8k_remove_dma_header(struct sk_buff *skb) |
a66098da | 686 | { |
76266b2a | 687 | struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)skb->data; |
a66098da | 688 | void *dst, *src = &tr->wh; |
76266b2a | 689 | int hdrlen = ieee80211_hdrlen(tr->wh.frame_control); |
a66098da LB |
690 | u16 space = sizeof(struct mwl8k_dma_data) - hdrlen; |
691 | ||
692 | dst = (void *)tr + space; | |
693 | if (dst != src) { | |
694 | memmove(dst, src, hdrlen); | |
695 | skb_pull(skb, space); | |
696 | } | |
a66098da LB |
697 | } |
698 | ||
76266b2a | 699 | static inline void mwl8k_add_dma_header(struct sk_buff *skb) |
a66098da LB |
700 | { |
701 | struct ieee80211_hdr *wh; | |
702 | u32 hdrlen, pktlen; | |
703 | struct mwl8k_dma_data *tr; | |
704 | ||
705 | wh = (struct ieee80211_hdr *)skb->data; | |
706 | hdrlen = ieee80211_hdrlen(wh->frame_control); | |
707 | pktlen = skb->len; | |
708 | ||
709 | /* | |
710 | * Copy up/down the 802.11 header; the firmware requires | |
711 | * we present a 2-byte payload length followed by a | |
712 | * 4-address header (w/o QoS), followed (optionally) by | |
713 | * any WEP/ExtIV header (but only filled in for CCMP). | |
714 | */ | |
715 | if (hdrlen != sizeof(struct mwl8k_dma_data)) | |
716 | skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen); | |
717 | ||
718 | tr = (struct mwl8k_dma_data *)skb->data; | |
719 | if (wh != &tr->wh) | |
720 | memmove(&tr->wh, wh, hdrlen); | |
721 | ||
722 | /* Clear addr4 */ | |
d89173f2 | 723 | memset(tr->wh.addr4, 0, ETH_ALEN); |
a66098da LB |
724 | |
725 | /* | |
726 | * Firmware length is the length of the fully formed "802.11 | |
727 | * payload". That is, everything except for the 802.11 header. | |
728 | * This includes all crypto material including the MIC. | |
729 | */ | |
730 | tr->fwlen = cpu_to_le16(pktlen - hdrlen); | |
a66098da LB |
731 | } |
732 | ||
733 | ||
734 | /* | |
735 | * Packet reception. | |
736 | */ | |
a66098da | 737 | #define MWL8K_RX_CTRL_OWNED_BY_HOST 0x02 |
a66098da LB |
738 | |
739 | struct mwl8k_rx_desc { | |
740 | __le16 pkt_len; | |
741 | __u8 link_quality; | |
742 | __u8 noise_level; | |
743 | __le32 pkt_phys_addr; | |
744 | __le32 next_rx_desc_phys_addr; | |
745 | __le16 qos_control; | |
746 | __le16 rate_info; | |
747 | __le32 pad0[4]; | |
748 | __u8 rssi; | |
749 | __u8 channel; | |
750 | __le16 pad1; | |
751 | __u8 rx_ctrl; | |
752 | __u8 rx_status; | |
753 | __u8 pad2[2]; | |
754 | } __attribute__((packed)); | |
755 | ||
756 | #define MWL8K_RX_DESCS 256 | |
757 | #define MWL8K_RX_MAXSZ 3800 | |
758 | ||
759 | static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) | |
760 | { | |
761 | struct mwl8k_priv *priv = hw->priv; | |
762 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
763 | int size; | |
764 | int i; | |
765 | ||
766 | rxq->rx_desc_count = 0; | |
767 | rxq->rx_head = 0; | |
768 | rxq->rx_tail = 0; | |
769 | ||
770 | size = MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc); | |
771 | ||
772 | rxq->rx_desc_area = | |
773 | pci_alloc_consistent(priv->pdev, size, &rxq->rx_desc_dma); | |
774 | if (rxq->rx_desc_area == NULL) { | |
775 | printk(KERN_ERR "%s: failed to alloc RX descriptors\n", | |
c2c357ce | 776 | wiphy_name(hw->wiphy)); |
a66098da LB |
777 | return -ENOMEM; |
778 | } | |
779 | memset(rxq->rx_desc_area, 0, size); | |
780 | ||
781 | rxq->rx_skb = kmalloc(MWL8K_RX_DESCS * | |
782 | sizeof(*rxq->rx_skb), GFP_KERNEL); | |
783 | if (rxq->rx_skb == NULL) { | |
784 | printk(KERN_ERR "%s: failed to alloc RX skbuff list\n", | |
c2c357ce | 785 | wiphy_name(hw->wiphy)); |
a66098da LB |
786 | pci_free_consistent(priv->pdev, size, |
787 | rxq->rx_desc_area, rxq->rx_desc_dma); | |
788 | return -ENOMEM; | |
789 | } | |
790 | memset(rxq->rx_skb, 0, MWL8K_RX_DESCS * sizeof(*rxq->rx_skb)); | |
791 | ||
792 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
793 | struct mwl8k_rx_desc *rx_desc; | |
794 | int nexti; | |
795 | ||
796 | rx_desc = rxq->rx_desc_area + i; | |
797 | nexti = (i + 1) % MWL8K_RX_DESCS; | |
798 | ||
799 | rx_desc->next_rx_desc_phys_addr = | |
800 | cpu_to_le32(rxq->rx_desc_dma | |
801 | + nexti * sizeof(*rx_desc)); | |
c491bf12 | 802 | rx_desc->rx_ctrl = MWL8K_RX_CTRL_OWNED_BY_HOST; |
a66098da LB |
803 | } |
804 | ||
805 | return 0; | |
806 | } | |
807 | ||
808 | static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) | |
809 | { | |
810 | struct mwl8k_priv *priv = hw->priv; | |
811 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
812 | int refilled; | |
813 | ||
814 | refilled = 0; | |
815 | while (rxq->rx_desc_count < MWL8K_RX_DESCS && limit--) { | |
816 | struct sk_buff *skb; | |
817 | int rx; | |
818 | ||
819 | skb = dev_alloc_skb(MWL8K_RX_MAXSZ); | |
820 | if (skb == NULL) | |
821 | break; | |
822 | ||
823 | rxq->rx_desc_count++; | |
824 | ||
825 | rx = rxq->rx_tail; | |
826 | rxq->rx_tail = (rx + 1) % MWL8K_RX_DESCS; | |
827 | ||
828 | rxq->rx_desc_area[rx].pkt_phys_addr = | |
829 | cpu_to_le32(pci_map_single(priv->pdev, skb->data, | |
830 | MWL8K_RX_MAXSZ, DMA_FROM_DEVICE)); | |
831 | ||
832 | rxq->rx_desc_area[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ); | |
833 | rxq->rx_skb[rx] = skb; | |
834 | wmb(); | |
835 | rxq->rx_desc_area[rx].rx_ctrl = 0; | |
836 | ||
837 | refilled++; | |
838 | } | |
839 | ||
840 | return refilled; | |
841 | } | |
842 | ||
843 | /* Must be called only when the card's reception is completely halted */ | |
844 | static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) | |
845 | { | |
846 | struct mwl8k_priv *priv = hw->priv; | |
847 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
848 | int i; | |
849 | ||
850 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
851 | if (rxq->rx_skb[i] != NULL) { | |
852 | unsigned long addr; | |
853 | ||
854 | addr = le32_to_cpu(rxq->rx_desc_area[i].pkt_phys_addr); | |
855 | pci_unmap_single(priv->pdev, addr, MWL8K_RX_MAXSZ, | |
856 | PCI_DMA_FROMDEVICE); | |
857 | kfree_skb(rxq->rx_skb[i]); | |
858 | rxq->rx_skb[i] = NULL; | |
859 | } | |
860 | } | |
861 | ||
862 | kfree(rxq->rx_skb); | |
863 | rxq->rx_skb = NULL; | |
864 | ||
865 | pci_free_consistent(priv->pdev, | |
866 | MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc), | |
867 | rxq->rx_desc_area, rxq->rx_desc_dma); | |
868 | rxq->rx_desc_area = NULL; | |
869 | } | |
870 | ||
871 | ||
872 | /* | |
873 | * Scan a list of BSSIDs to process for finalize join. | |
874 | * Allows for extension to process multiple BSSIDs. | |
875 | */ | |
876 | static inline int | |
877 | mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) | |
878 | { | |
879 | return priv->capture_beacon && | |
880 | ieee80211_is_beacon(wh->frame_control) && | |
881 | !compare_ether_addr(wh->addr3, priv->capture_bssid); | |
882 | } | |
883 | ||
884 | static inline void mwl8k_save_beacon(struct mwl8k_priv *priv, | |
885 | struct sk_buff *skb) | |
886 | { | |
887 | priv->capture_beacon = false; | |
d89173f2 | 888 | memset(priv->capture_bssid, 0, ETH_ALEN); |
a66098da LB |
889 | |
890 | /* | |
891 | * Use GFP_ATOMIC as rxq_process is called from | |
892 | * the primary interrupt handler, memory allocation call | |
893 | * must not sleep. | |
894 | */ | |
895 | priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); | |
896 | if (priv->beacon_skb != NULL) | |
897 | queue_work(priv->config_wq, | |
898 | &priv->finalize_join_worker); | |
899 | } | |
900 | ||
901 | static int rxq_process(struct ieee80211_hw *hw, int index, int limit) | |
902 | { | |
903 | struct mwl8k_priv *priv = hw->priv; | |
904 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
905 | int processed; | |
906 | ||
907 | processed = 0; | |
908 | while (rxq->rx_desc_count && limit--) { | |
909 | struct mwl8k_rx_desc *rx_desc; | |
910 | struct sk_buff *skb; | |
911 | struct ieee80211_rx_status status; | |
912 | unsigned long addr; | |
913 | struct ieee80211_hdr *wh; | |
914 | ||
915 | rx_desc = rxq->rx_desc_area + rxq->rx_head; | |
916 | if (!(rx_desc->rx_ctrl & MWL8K_RX_CTRL_OWNED_BY_HOST)) | |
917 | break; | |
918 | rmb(); | |
919 | ||
920 | skb = rxq->rx_skb[rxq->rx_head]; | |
d25f9f13 LB |
921 | if (skb == NULL) |
922 | break; | |
a66098da LB |
923 | rxq->rx_skb[rxq->rx_head] = NULL; |
924 | ||
925 | rxq->rx_head = (rxq->rx_head + 1) % MWL8K_RX_DESCS; | |
926 | rxq->rx_desc_count--; | |
927 | ||
928 | addr = le32_to_cpu(rx_desc->pkt_phys_addr); | |
929 | pci_unmap_single(priv->pdev, addr, | |
930 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
931 | ||
932 | skb_put(skb, le16_to_cpu(rx_desc->pkt_len)); | |
76266b2a | 933 | mwl8k_remove_dma_header(skb); |
a66098da LB |
934 | |
935 | wh = (struct ieee80211_hdr *)skb->data; | |
936 | ||
937 | /* | |
c2c357ce LB |
938 | * Check for a pending join operation. Save a |
939 | * copy of the beacon and schedule a tasklet to | |
940 | * send a FINALIZE_JOIN command to the firmware. | |
a66098da LB |
941 | */ |
942 | if (mwl8k_capture_bssid(priv, wh)) | |
943 | mwl8k_save_beacon(priv, skb); | |
944 | ||
945 | memset(&status, 0, sizeof(status)); | |
946 | status.mactime = 0; | |
947 | status.signal = -rx_desc->rssi; | |
948 | status.noise = -rx_desc->noise_level; | |
949 | status.qual = rx_desc->link_quality; | |
950 | status.antenna = 1; | |
951 | status.rate_idx = 1; | |
952 | status.flag = 0; | |
953 | status.band = IEEE80211_BAND_2GHZ; | |
954 | status.freq = ieee80211_channel_to_frequency(rx_desc->channel); | |
f1d58c25 JB |
955 | memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); |
956 | ieee80211_rx_irqsafe(hw, skb); | |
a66098da LB |
957 | |
958 | processed++; | |
959 | } | |
960 | ||
961 | return processed; | |
962 | } | |
963 | ||
964 | ||
965 | /* | |
966 | * Packet transmission. | |
967 | */ | |
968 | ||
969 | /* Transmit queue assignment. */ | |
970 | enum { | |
971 | MWL8K_WME_AC_BK = 0, /* background access */ | |
972 | MWL8K_WME_AC_BE = 1, /* best effort access */ | |
973 | MWL8K_WME_AC_VI = 2, /* video access */ | |
974 | MWL8K_WME_AC_VO = 3, /* voice access */ | |
975 | }; | |
976 | ||
977 | /* Transmit packet ACK policy */ | |
978 | #define MWL8K_TXD_ACK_POLICY_NORMAL 0 | |
a66098da LB |
979 | #define MWL8K_TXD_ACK_POLICY_BLOCKACK 3 |
980 | ||
981 | #define GET_TXQ(_ac) (\ | |
982 | ((_ac) == WME_AC_VO) ? MWL8K_WME_AC_VO : \ | |
983 | ((_ac) == WME_AC_VI) ? MWL8K_WME_AC_VI : \ | |
984 | ((_ac) == WME_AC_BK) ? MWL8K_WME_AC_BK : \ | |
985 | MWL8K_WME_AC_BE) | |
986 | ||
a66098da LB |
987 | #define MWL8K_TXD_STATUS_OK 0x00000001 |
988 | #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 | |
989 | #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 | |
990 | #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 | |
a66098da | 991 | #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 |
a66098da LB |
992 | |
993 | struct mwl8k_tx_desc { | |
994 | __le32 status; | |
995 | __u8 data_rate; | |
996 | __u8 tx_priority; | |
997 | __le16 qos_control; | |
998 | __le32 pkt_phys_addr; | |
999 | __le16 pkt_len; | |
d89173f2 | 1000 | __u8 dest_MAC_addr[ETH_ALEN]; |
a66098da LB |
1001 | __le32 next_tx_desc_phys_addr; |
1002 | __le32 reserved; | |
1003 | __le16 rate_info; | |
1004 | __u8 peer_id; | |
1005 | __u8 tx_frag_cnt; | |
1006 | } __attribute__((packed)); | |
1007 | ||
1008 | #define MWL8K_TX_DESCS 128 | |
1009 | ||
1010 | static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) | |
1011 | { | |
1012 | struct mwl8k_priv *priv = hw->priv; | |
1013 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1014 | int size; | |
1015 | int i; | |
1016 | ||
ce9e2e1b | 1017 | memset(&txq->tx_stats, 0, sizeof(struct ieee80211_tx_queue_stats)); |
a66098da LB |
1018 | txq->tx_stats.limit = MWL8K_TX_DESCS; |
1019 | txq->tx_head = 0; | |
1020 | txq->tx_tail = 0; | |
1021 | ||
1022 | size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); | |
1023 | ||
1024 | txq->tx_desc_area = | |
1025 | pci_alloc_consistent(priv->pdev, size, &txq->tx_desc_dma); | |
1026 | if (txq->tx_desc_area == NULL) { | |
1027 | printk(KERN_ERR "%s: failed to alloc TX descriptors\n", | |
c2c357ce | 1028 | wiphy_name(hw->wiphy)); |
a66098da LB |
1029 | return -ENOMEM; |
1030 | } | |
1031 | memset(txq->tx_desc_area, 0, size); | |
1032 | ||
1033 | txq->tx_skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->tx_skb), | |
1034 | GFP_KERNEL); | |
1035 | if (txq->tx_skb == NULL) { | |
1036 | printk(KERN_ERR "%s: failed to alloc TX skbuff list\n", | |
c2c357ce | 1037 | wiphy_name(hw->wiphy)); |
a66098da LB |
1038 | pci_free_consistent(priv->pdev, size, |
1039 | txq->tx_desc_area, txq->tx_desc_dma); | |
1040 | return -ENOMEM; | |
1041 | } | |
1042 | memset(txq->tx_skb, 0, MWL8K_TX_DESCS * sizeof(*txq->tx_skb)); | |
1043 | ||
1044 | for (i = 0; i < MWL8K_TX_DESCS; i++) { | |
1045 | struct mwl8k_tx_desc *tx_desc; | |
1046 | int nexti; | |
1047 | ||
1048 | tx_desc = txq->tx_desc_area + i; | |
1049 | nexti = (i + 1) % MWL8K_TX_DESCS; | |
1050 | ||
1051 | tx_desc->status = 0; | |
1052 | tx_desc->next_tx_desc_phys_addr = | |
1053 | cpu_to_le32(txq->tx_desc_dma + | |
1054 | nexti * sizeof(*tx_desc)); | |
1055 | } | |
1056 | ||
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | static inline void mwl8k_tx_start(struct mwl8k_priv *priv) | |
1061 | { | |
1062 | iowrite32(MWL8K_H2A_INT_PPA_READY, | |
1063 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1064 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1065 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1066 | ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
1067 | } | |
1068 | ||
a66098da LB |
1069 | struct mwl8k_txq_info { |
1070 | u32 fw_owned; | |
1071 | u32 drv_owned; | |
1072 | u32 unused; | |
1073 | u32 len; | |
1074 | u32 head; | |
1075 | u32 tail; | |
1076 | }; | |
1077 | ||
1078 | static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, | |
c3f967d3 | 1079 | struct mwl8k_txq_info *txinfo) |
a66098da LB |
1080 | { |
1081 | int count, desc, status; | |
1082 | struct mwl8k_tx_queue *txq; | |
1083 | struct mwl8k_tx_desc *tx_desc; | |
1084 | int ndescs = 0; | |
1085 | ||
c3f967d3 LB |
1086 | memset(txinfo, 0, MWL8K_TX_QUEUES * sizeof(struct mwl8k_txq_info)); |
1087 | ||
c3f967d3 | 1088 | for (count = 0; count < MWL8K_TX_QUEUES; count++) { |
a66098da LB |
1089 | txq = priv->txq + count; |
1090 | txinfo[count].len = txq->tx_stats.len; | |
1091 | txinfo[count].head = txq->tx_head; | |
1092 | txinfo[count].tail = txq->tx_tail; | |
1093 | for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { | |
1094 | tx_desc = txq->tx_desc_area + desc; | |
1095 | status = le32_to_cpu(tx_desc->status); | |
1096 | ||
1097 | if (status & MWL8K_TXD_STATUS_FW_OWNED) | |
1098 | txinfo[count].fw_owned++; | |
1099 | else | |
1100 | txinfo[count].drv_owned++; | |
1101 | ||
1102 | if (tx_desc->pkt_len == 0) | |
1103 | txinfo[count].unused++; | |
1104 | } | |
1105 | } | |
a66098da LB |
1106 | |
1107 | return ndescs; | |
1108 | } | |
1109 | ||
618952a7 | 1110 | /* |
88de754a | 1111 | * Must be called with priv->fw_mutex held and tx queues stopped. |
618952a7 | 1112 | */ |
950d5b01 | 1113 | static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) |
a66098da | 1114 | { |
a66098da | 1115 | struct mwl8k_priv *priv = hw->priv; |
88de754a | 1116 | DECLARE_COMPLETION_ONSTACK(tx_wait); |
ce9e2e1b LB |
1117 | u32 count; |
1118 | unsigned long timeout; | |
a66098da LB |
1119 | |
1120 | might_sleep(); | |
1121 | ||
a66098da | 1122 | spin_lock_bh(&priv->tx_lock); |
88de754a LB |
1123 | count = priv->pending_tx_pkts; |
1124 | if (count) | |
1125 | priv->tx_wait = &tx_wait; | |
a66098da LB |
1126 | spin_unlock_bh(&priv->tx_lock); |
1127 | ||
1128 | if (count) { | |
c3f967d3 | 1129 | struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES]; |
a66098da LB |
1130 | int index; |
1131 | int newcount; | |
1132 | ||
88de754a | 1133 | timeout = wait_for_completion_timeout(&tx_wait, |
618952a7 | 1134 | msecs_to_jiffies(5000)); |
a66098da LB |
1135 | if (timeout) |
1136 | return 0; | |
1137 | ||
1138 | spin_lock_bh(&priv->tx_lock); | |
1139 | priv->tx_wait = NULL; | |
88de754a LB |
1140 | newcount = priv->pending_tx_pkts; |
1141 | mwl8k_scan_tx_ring(priv, txinfo); | |
a66098da LB |
1142 | spin_unlock_bh(&priv->tx_lock); |
1143 | ||
618952a7 | 1144 | printk(KERN_ERR "%s(%u) TIMEDOUT:5000ms Pend:%u-->%u\n", |
950d5b01 | 1145 | __func__, __LINE__, count, newcount); |
a66098da | 1146 | |
c3f967d3 | 1147 | for (index = 0; index < MWL8K_TX_QUEUES; index++) |
c2c357ce LB |
1148 | printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u " |
1149 | "DRV:%u U:%u\n", | |
a66098da LB |
1150 | index, |
1151 | txinfo[index].len, | |
1152 | txinfo[index].head, | |
1153 | txinfo[index].tail, | |
1154 | txinfo[index].fw_owned, | |
1155 | txinfo[index].drv_owned, | |
1156 | txinfo[index].unused); | |
ce9e2e1b | 1157 | |
a66098da LB |
1158 | return -ETIMEDOUT; |
1159 | } | |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
c23b5a69 LB |
1164 | #define MWL8K_TXD_SUCCESS(status) \ |
1165 | ((status) & (MWL8K_TXD_STATUS_OK | \ | |
1166 | MWL8K_TXD_STATUS_OK_RETRY | \ | |
1167 | MWL8K_TXD_STATUS_OK_MORE_RETRY)) | |
a66098da LB |
1168 | |
1169 | static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) | |
1170 | { | |
1171 | struct mwl8k_priv *priv = hw->priv; | |
1172 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1173 | int wake = 0; | |
1174 | ||
1175 | while (txq->tx_stats.len > 0) { | |
1176 | int tx; | |
a66098da LB |
1177 | struct mwl8k_tx_desc *tx_desc; |
1178 | unsigned long addr; | |
ce9e2e1b | 1179 | int size; |
a66098da LB |
1180 | struct sk_buff *skb; |
1181 | struct ieee80211_tx_info *info; | |
1182 | u32 status; | |
1183 | ||
a66098da LB |
1184 | tx = txq->tx_head; |
1185 | tx_desc = txq->tx_desc_area + tx; | |
1186 | ||
1187 | status = le32_to_cpu(tx_desc->status); | |
1188 | ||
1189 | if (status & MWL8K_TXD_STATUS_FW_OWNED) { | |
1190 | if (!force) | |
1191 | break; | |
1192 | tx_desc->status &= | |
1193 | ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); | |
1194 | } | |
1195 | ||
1196 | txq->tx_head = (tx + 1) % MWL8K_TX_DESCS; | |
1197 | BUG_ON(txq->tx_stats.len == 0); | |
1198 | txq->tx_stats.len--; | |
1199 | priv->pending_tx_pkts--; | |
1200 | ||
1201 | addr = le32_to_cpu(tx_desc->pkt_phys_addr); | |
ce9e2e1b | 1202 | size = le16_to_cpu(tx_desc->pkt_len); |
76266b2a LB |
1203 | skb = txq->tx_skb[tx]; |
1204 | txq->tx_skb[tx] = NULL; | |
a66098da LB |
1205 | |
1206 | BUG_ON(skb == NULL); | |
1207 | pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); | |
1208 | ||
76266b2a | 1209 | mwl8k_remove_dma_header(skb); |
a66098da LB |
1210 | |
1211 | /* Mark descriptor as unused */ | |
1212 | tx_desc->pkt_phys_addr = 0; | |
1213 | tx_desc->pkt_len = 0; | |
1214 | ||
a66098da LB |
1215 | info = IEEE80211_SKB_CB(skb); |
1216 | ieee80211_tx_info_clear_status(info); | |
ce9e2e1b | 1217 | if (MWL8K_TXD_SUCCESS(status)) |
a66098da | 1218 | info->flags |= IEEE80211_TX_STAT_ACK; |
a66098da LB |
1219 | |
1220 | ieee80211_tx_status_irqsafe(hw, skb); | |
1221 | ||
618952a7 | 1222 | wake = 1; |
a66098da LB |
1223 | } |
1224 | ||
618952a7 | 1225 | if (wake && priv->radio_on && !mutex_is_locked(&priv->fw_mutex)) |
a66098da LB |
1226 | ieee80211_wake_queue(hw, index); |
1227 | } | |
1228 | ||
1229 | /* must be called only when the card's transmit is completely halted */ | |
1230 | static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) | |
1231 | { | |
1232 | struct mwl8k_priv *priv = hw->priv; | |
1233 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1234 | ||
1235 | mwl8k_txq_reclaim(hw, index, 1); | |
1236 | ||
1237 | kfree(txq->tx_skb); | |
1238 | txq->tx_skb = NULL; | |
1239 | ||
1240 | pci_free_consistent(priv->pdev, | |
1241 | MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), | |
1242 | txq->tx_desc_area, txq->tx_desc_dma); | |
1243 | txq->tx_desc_area = NULL; | |
1244 | } | |
1245 | ||
1246 | static int | |
1247 | mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) | |
1248 | { | |
1249 | struct mwl8k_priv *priv = hw->priv; | |
1250 | struct ieee80211_tx_info *tx_info; | |
23b33906 | 1251 | struct mwl8k_vif *mwl8k_vif; |
a66098da LB |
1252 | struct ieee80211_hdr *wh; |
1253 | struct mwl8k_tx_queue *txq; | |
1254 | struct mwl8k_tx_desc *tx; | |
a66098da | 1255 | dma_addr_t dma; |
23b33906 LB |
1256 | u32 txstatus; |
1257 | u8 txdatarate; | |
1258 | u16 qos; | |
a66098da | 1259 | |
23b33906 LB |
1260 | wh = (struct ieee80211_hdr *)skb->data; |
1261 | if (ieee80211_is_data_qos(wh->frame_control)) | |
1262 | qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); | |
1263 | else | |
1264 | qos = 0; | |
a66098da | 1265 | |
76266b2a | 1266 | mwl8k_add_dma_header(skb); |
23b33906 | 1267 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da LB |
1268 | |
1269 | tx_info = IEEE80211_SKB_CB(skb); | |
1270 | mwl8k_vif = MWL8K_VIF(tx_info->control.vif); | |
a66098da LB |
1271 | |
1272 | if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
1273 | u16 seqno = mwl8k_vif->seqno; | |
23b33906 | 1274 | |
a66098da LB |
1275 | wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
1276 | wh->seq_ctrl |= cpu_to_le16(seqno << 4); | |
1277 | mwl8k_vif->seqno = seqno++ % 4096; | |
1278 | } | |
1279 | ||
23b33906 LB |
1280 | /* Setup firmware control bit fields for each frame type. */ |
1281 | txstatus = 0; | |
1282 | txdatarate = 0; | |
1283 | if (ieee80211_is_mgmt(wh->frame_control) || | |
1284 | ieee80211_is_ctl(wh->frame_control)) { | |
1285 | txdatarate = 0; | |
1286 | qos = mwl8k_qos_setbit_eosp(qos); | |
1287 | /* Set Queue size to unspecified */ | |
1288 | qos = mwl8k_qos_setbit_qlen(qos, 0xff); | |
1289 | } else if (ieee80211_is_data(wh->frame_control)) { | |
1290 | txdatarate = 1; | |
1291 | if (is_multicast_ether_addr(wh->addr1)) | |
1292 | txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX; | |
1293 | ||
1294 | /* Send pkt in an aggregate if AMPDU frame. */ | |
1295 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) | |
1296 | qos = mwl8k_qos_setbit_ack(qos, | |
1297 | MWL8K_TXD_ACK_POLICY_BLOCKACK); | |
1298 | else | |
1299 | qos = mwl8k_qos_setbit_ack(qos, | |
1300 | MWL8K_TXD_ACK_POLICY_NORMAL); | |
1301 | ||
1302 | if (qos & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT) | |
1303 | qos = mwl8k_qos_setbit_amsdu(qos); | |
1304 | } | |
a66098da LB |
1305 | |
1306 | dma = pci_map_single(priv->pdev, skb->data, | |
1307 | skb->len, PCI_DMA_TODEVICE); | |
1308 | ||
1309 | if (pci_dma_mapping_error(priv->pdev, dma)) { | |
1310 | printk(KERN_DEBUG "%s: failed to dma map skb, " | |
c2c357ce | 1311 | "dropping TX frame.\n", wiphy_name(hw->wiphy)); |
23b33906 | 1312 | dev_kfree_skb(skb); |
a66098da LB |
1313 | return NETDEV_TX_OK; |
1314 | } | |
1315 | ||
23b33906 | 1316 | spin_lock_bh(&priv->tx_lock); |
a66098da | 1317 | |
23b33906 | 1318 | txq = priv->txq + index; |
a66098da | 1319 | |
23b33906 LB |
1320 | BUG_ON(txq->tx_skb[txq->tx_tail] != NULL); |
1321 | txq->tx_skb[txq->tx_tail] = skb; | |
a66098da | 1322 | |
23b33906 LB |
1323 | tx = txq->tx_desc_area + txq->tx_tail; |
1324 | tx->data_rate = txdatarate; | |
1325 | tx->tx_priority = index; | |
a66098da | 1326 | tx->qos_control = cpu_to_le16(qos); |
a66098da LB |
1327 | tx->pkt_phys_addr = cpu_to_le32(dma); |
1328 | tx->pkt_len = cpu_to_le16(skb->len); | |
23b33906 LB |
1329 | tx->rate_info = 0; |
1330 | tx->peer_id = mwl8k_vif->peer_id; | |
a66098da | 1331 | wmb(); |
23b33906 LB |
1332 | tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); |
1333 | ||
1334 | txq->tx_stats.count++; | |
a66098da LB |
1335 | txq->tx_stats.len++; |
1336 | priv->pending_tx_pkts++; | |
a66098da | 1337 | |
23b33906 | 1338 | txq->tx_tail++; |
a66098da LB |
1339 | if (txq->tx_tail == MWL8K_TX_DESCS) |
1340 | txq->tx_tail = 0; | |
23b33906 | 1341 | |
a66098da LB |
1342 | if (txq->tx_head == txq->tx_tail) |
1343 | ieee80211_stop_queue(hw, index); | |
1344 | ||
23b33906 | 1345 | mwl8k_tx_start(priv); |
a66098da LB |
1346 | |
1347 | spin_unlock_bh(&priv->tx_lock); | |
1348 | ||
1349 | return NETDEV_TX_OK; | |
1350 | } | |
1351 | ||
1352 | ||
618952a7 LB |
1353 | /* |
1354 | * Firmware access. | |
1355 | * | |
1356 | * We have the following requirements for issuing firmware commands: | |
1357 | * - Some commands require that the packet transmit path is idle when | |
1358 | * the command is issued. (For simplicity, we'll just quiesce the | |
1359 | * transmit path for every command.) | |
1360 | * - There are certain sequences of commands that need to be issued to | |
1361 | * the hardware sequentially, with no other intervening commands. | |
1362 | * | |
1363 | * This leads to an implementation of a "firmware lock" as a mutex that | |
1364 | * can be taken recursively, and which is taken by both the low-level | |
1365 | * command submission function (mwl8k_post_cmd) as well as any users of | |
1366 | * that function that require issuing of an atomic sequence of commands, | |
1367 | * and quiesces the transmit path whenever it's taken. | |
1368 | */ | |
1369 | static int mwl8k_fw_lock(struct ieee80211_hw *hw) | |
1370 | { | |
1371 | struct mwl8k_priv *priv = hw->priv; | |
1372 | ||
1373 | if (priv->fw_mutex_owner != current) { | |
1374 | int rc; | |
1375 | ||
1376 | mutex_lock(&priv->fw_mutex); | |
1377 | ieee80211_stop_queues(hw); | |
1378 | ||
1379 | rc = mwl8k_tx_wait_empty(hw); | |
1380 | if (rc) { | |
1381 | ieee80211_wake_queues(hw); | |
1382 | mutex_unlock(&priv->fw_mutex); | |
1383 | ||
1384 | return rc; | |
1385 | } | |
1386 | ||
1387 | priv->fw_mutex_owner = current; | |
1388 | } | |
1389 | ||
1390 | priv->fw_mutex_depth++; | |
1391 | ||
1392 | return 0; | |
1393 | } | |
1394 | ||
1395 | static void mwl8k_fw_unlock(struct ieee80211_hw *hw) | |
1396 | { | |
1397 | struct mwl8k_priv *priv = hw->priv; | |
1398 | ||
1399 | if (!--priv->fw_mutex_depth) { | |
1400 | ieee80211_wake_queues(hw); | |
1401 | priv->fw_mutex_owner = NULL; | |
1402 | mutex_unlock(&priv->fw_mutex); | |
1403 | } | |
1404 | } | |
1405 | ||
1406 | ||
a66098da LB |
1407 | /* |
1408 | * Command processing. | |
1409 | */ | |
1410 | ||
1411 | /* Timeout firmware commands after 2000ms */ | |
1412 | #define MWL8K_CMD_TIMEOUT_MS 2000 | |
1413 | ||
1414 | static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) | |
1415 | { | |
1416 | DECLARE_COMPLETION_ONSTACK(cmd_wait); | |
1417 | struct mwl8k_priv *priv = hw->priv; | |
1418 | void __iomem *regs = priv->regs; | |
1419 | dma_addr_t dma_addr; | |
1420 | unsigned int dma_size; | |
1421 | int rc; | |
a66098da LB |
1422 | unsigned long timeout = 0; |
1423 | u8 buf[32]; | |
1424 | ||
c2c357ce | 1425 | cmd->result = 0xffff; |
a66098da LB |
1426 | dma_size = le16_to_cpu(cmd->length); |
1427 | dma_addr = pci_map_single(priv->pdev, cmd, dma_size, | |
1428 | PCI_DMA_BIDIRECTIONAL); | |
1429 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
1430 | return -ENOMEM; | |
1431 | ||
618952a7 | 1432 | rc = mwl8k_fw_lock(hw); |
39a1e42e LB |
1433 | if (rc) { |
1434 | pci_unmap_single(priv->pdev, dma_addr, dma_size, | |
1435 | PCI_DMA_BIDIRECTIONAL); | |
618952a7 | 1436 | return rc; |
39a1e42e | 1437 | } |
a66098da | 1438 | |
a66098da LB |
1439 | priv->hostcmd_wait = &cmd_wait; |
1440 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
1441 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
1442 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1443 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1444 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
a66098da LB |
1445 | |
1446 | timeout = wait_for_completion_timeout(&cmd_wait, | |
1447 | msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); | |
1448 | ||
618952a7 LB |
1449 | priv->hostcmd_wait = NULL; |
1450 | ||
1451 | mwl8k_fw_unlock(hw); | |
1452 | ||
37055bd4 LB |
1453 | pci_unmap_single(priv->pdev, dma_addr, dma_size, |
1454 | PCI_DMA_BIDIRECTIONAL); | |
1455 | ||
a66098da | 1456 | if (!timeout) { |
a66098da | 1457 | printk(KERN_ERR "%s: Command %s timeout after %u ms\n", |
c2c357ce | 1458 | wiphy_name(hw->wiphy), |
a66098da LB |
1459 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
1460 | MWL8K_CMD_TIMEOUT_MS); | |
1461 | rc = -ETIMEDOUT; | |
1462 | } else { | |
ce9e2e1b | 1463 | rc = cmd->result ? -EINVAL : 0; |
a66098da LB |
1464 | if (rc) |
1465 | printk(KERN_ERR "%s: Command %s error 0x%x\n", | |
c2c357ce | 1466 | wiphy_name(hw->wiphy), |
a66098da | 1467 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
76c962a2 | 1468 | le16_to_cpu(cmd->result)); |
a66098da LB |
1469 | } |
1470 | ||
a66098da LB |
1471 | return rc; |
1472 | } | |
1473 | ||
1474 | /* | |
1475 | * GET_HW_SPEC. | |
1476 | */ | |
1477 | struct mwl8k_cmd_get_hw_spec { | |
1478 | struct mwl8k_cmd_pkt header; | |
1479 | __u8 hw_rev; | |
1480 | __u8 host_interface; | |
1481 | __le16 num_mcaddrs; | |
d89173f2 | 1482 | __u8 perm_addr[ETH_ALEN]; |
a66098da LB |
1483 | __le16 region_code; |
1484 | __le32 fw_rev; | |
1485 | __le32 ps_cookie; | |
1486 | __le32 caps; | |
1487 | __u8 mcs_bitmap[16]; | |
1488 | __le32 rx_queue_ptr; | |
1489 | __le32 num_tx_queues; | |
1490 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1491 | __le32 caps2; | |
1492 | __le32 num_tx_desc_per_queue; | |
1493 | __le32 total_rx_desc; | |
1494 | } __attribute__((packed)); | |
1495 | ||
1496 | static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw) | |
1497 | { | |
1498 | struct mwl8k_priv *priv = hw->priv; | |
1499 | struct mwl8k_cmd_get_hw_spec *cmd; | |
1500 | int rc; | |
1501 | int i; | |
1502 | ||
1503 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1504 | if (cmd == NULL) | |
1505 | return -ENOMEM; | |
1506 | ||
1507 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1508 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1509 | ||
1510 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1511 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
1512 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rx_desc_dma); | |
4ff6432e | 1513 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); |
a66098da LB |
1514 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
1515 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].tx_desc_dma); | |
4ff6432e LB |
1516 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
1517 | cmd->total_rx_desc = cpu_to_le32(MWL8K_RX_DESCS); | |
a66098da LB |
1518 | |
1519 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1520 | ||
1521 | if (!rc) { | |
1522 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1523 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
4ff6432e | 1524 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); |
a66098da | 1525 | priv->hw_rev = cmd->hw_rev; |
a66098da LB |
1526 | } |
1527 | ||
1528 | kfree(cmd); | |
1529 | return rc; | |
1530 | } | |
1531 | ||
1532 | /* | |
1533 | * CMD_MAC_MULTICAST_ADR. | |
1534 | */ | |
1535 | struct mwl8k_cmd_mac_multicast_adr { | |
1536 | struct mwl8k_cmd_pkt header; | |
1537 | __le16 action; | |
1538 | __le16 numaddr; | |
ce9e2e1b | 1539 | __u8 addr[0][ETH_ALEN]; |
a66098da LB |
1540 | }; |
1541 | ||
d5e30845 LB |
1542 | #define MWL8K_ENABLE_RX_DIRECTED 0x0001 |
1543 | #define MWL8K_ENABLE_RX_MULTICAST 0x0002 | |
1544 | #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004 | |
1545 | #define MWL8K_ENABLE_RX_BROADCAST 0x0008 | |
ce9e2e1b | 1546 | |
e81cd2d6 LB |
1547 | static struct mwl8k_cmd_pkt * |
1548 | __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, | |
1549 | int mc_count, struct dev_addr_list *mclist) | |
a66098da | 1550 | { |
e81cd2d6 | 1551 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 1552 | struct mwl8k_cmd_mac_multicast_adr *cmd; |
d5e30845 | 1553 | int allmulti; |
e81cd2d6 | 1554 | int size; |
e81cd2d6 | 1555 | |
d5e30845 LB |
1556 | allmulti = 0; |
1557 | if (mc_count > priv->num_mcaddrs) { | |
1558 | allmulti = 1; | |
1559 | mc_count = 0; | |
1560 | } | |
e81cd2d6 LB |
1561 | |
1562 | size = sizeof(*cmd) + mc_count * ETH_ALEN; | |
ce9e2e1b | 1563 | |
e81cd2d6 | 1564 | cmd = kzalloc(size, GFP_ATOMIC); |
a66098da | 1565 | if (cmd == NULL) |
e81cd2d6 | 1566 | return NULL; |
a66098da LB |
1567 | |
1568 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR); | |
1569 | cmd->header.length = cpu_to_le16(size); | |
d5e30845 LB |
1570 | cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED | |
1571 | MWL8K_ENABLE_RX_BROADCAST); | |
1572 | ||
1573 | if (allmulti) { | |
1574 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST); | |
1575 | } else if (mc_count) { | |
1576 | int i; | |
1577 | ||
1578 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); | |
1579 | cmd->numaddr = cpu_to_le16(mc_count); | |
1580 | for (i = 0; i < mc_count && mclist; i++) { | |
1581 | if (mclist->da_addrlen != ETH_ALEN) { | |
1582 | kfree(cmd); | |
1583 | return NULL; | |
1584 | } | |
1585 | memcpy(cmd->addr[i], mclist->da_addr, ETH_ALEN); | |
1586 | mclist = mclist->next; | |
a66098da | 1587 | } |
a66098da LB |
1588 | } |
1589 | ||
e81cd2d6 | 1590 | return &cmd->header; |
a66098da LB |
1591 | } |
1592 | ||
1593 | /* | |
1594 | * CMD_802_11_GET_STAT. | |
1595 | */ | |
1596 | struct mwl8k_cmd_802_11_get_stat { | |
1597 | struct mwl8k_cmd_pkt header; | |
a66098da LB |
1598 | __le32 stats[64]; |
1599 | } __attribute__((packed)); | |
1600 | ||
1601 | #define MWL8K_STAT_ACK_FAILURE 9 | |
1602 | #define MWL8K_STAT_RTS_FAILURE 12 | |
1603 | #define MWL8K_STAT_FCS_ERROR 24 | |
1604 | #define MWL8K_STAT_RTS_SUCCESS 11 | |
1605 | ||
1606 | static int mwl8k_cmd_802_11_get_stat(struct ieee80211_hw *hw, | |
1607 | struct ieee80211_low_level_stats *stats) | |
1608 | { | |
1609 | struct mwl8k_cmd_802_11_get_stat *cmd; | |
1610 | int rc; | |
1611 | ||
1612 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1613 | if (cmd == NULL) | |
1614 | return -ENOMEM; | |
1615 | ||
1616 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT); | |
1617 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
1618 | |
1619 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1620 | if (!rc) { | |
1621 | stats->dot11ACKFailureCount = | |
1622 | le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]); | |
1623 | stats->dot11RTSFailureCount = | |
1624 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]); | |
1625 | stats->dot11FCSErrorCount = | |
1626 | le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]); | |
1627 | stats->dot11RTSSuccessCount = | |
1628 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]); | |
1629 | } | |
1630 | kfree(cmd); | |
1631 | ||
1632 | return rc; | |
1633 | } | |
1634 | ||
1635 | /* | |
1636 | * CMD_802_11_RADIO_CONTROL. | |
1637 | */ | |
1638 | struct mwl8k_cmd_802_11_radio_control { | |
1639 | struct mwl8k_cmd_pkt header; | |
1640 | __le16 action; | |
1641 | __le16 control; | |
1642 | __le16 radio_on; | |
1643 | } __attribute__((packed)); | |
1644 | ||
c46563b7 LB |
1645 | static int |
1646 | mwl8k_cmd_802_11_radio_control(struct ieee80211_hw *hw, bool enable, bool force) | |
a66098da LB |
1647 | { |
1648 | struct mwl8k_priv *priv = hw->priv; | |
1649 | struct mwl8k_cmd_802_11_radio_control *cmd; | |
1650 | int rc; | |
1651 | ||
c46563b7 | 1652 | if (enable == priv->radio_on && !force) |
a66098da LB |
1653 | return 0; |
1654 | ||
a66098da LB |
1655 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
1656 | if (cmd == NULL) | |
1657 | return -ENOMEM; | |
1658 | ||
1659 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL); | |
1660 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1661 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
68ce3884 | 1662 | cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1); |
a66098da LB |
1663 | cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000); |
1664 | ||
1665 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1666 | kfree(cmd); | |
1667 | ||
1668 | if (!rc) | |
c46563b7 | 1669 | priv->radio_on = enable; |
a66098da LB |
1670 | |
1671 | return rc; | |
1672 | } | |
1673 | ||
c46563b7 LB |
1674 | static int mwl8k_cmd_802_11_radio_disable(struct ieee80211_hw *hw) |
1675 | { | |
1676 | return mwl8k_cmd_802_11_radio_control(hw, 0, 0); | |
1677 | } | |
1678 | ||
1679 | static int mwl8k_cmd_802_11_radio_enable(struct ieee80211_hw *hw) | |
1680 | { | |
1681 | return mwl8k_cmd_802_11_radio_control(hw, 1, 0); | |
1682 | } | |
1683 | ||
a66098da LB |
1684 | static int |
1685 | mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) | |
1686 | { | |
1687 | struct mwl8k_priv *priv; | |
1688 | ||
1689 | if (hw == NULL || hw->priv == NULL) | |
1690 | return -EINVAL; | |
1691 | priv = hw->priv; | |
1692 | ||
68ce3884 | 1693 | priv->radio_short_preamble = short_preamble; |
a66098da | 1694 | |
c46563b7 | 1695 | return mwl8k_cmd_802_11_radio_control(hw, 1, 1); |
a66098da LB |
1696 | } |
1697 | ||
1698 | /* | |
1699 | * CMD_802_11_RF_TX_POWER. | |
1700 | */ | |
1701 | #define MWL8K_TX_POWER_LEVEL_TOTAL 8 | |
1702 | ||
1703 | struct mwl8k_cmd_802_11_rf_tx_power { | |
1704 | struct mwl8k_cmd_pkt header; | |
1705 | __le16 action; | |
1706 | __le16 support_level; | |
1707 | __le16 current_level; | |
1708 | __le16 reserved; | |
1709 | __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; | |
1710 | } __attribute__((packed)); | |
1711 | ||
1712 | static int mwl8k_cmd_802_11_rf_tx_power(struct ieee80211_hw *hw, int dBm) | |
1713 | { | |
1714 | struct mwl8k_cmd_802_11_rf_tx_power *cmd; | |
1715 | int rc; | |
1716 | ||
1717 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1718 | if (cmd == NULL) | |
1719 | return -ENOMEM; | |
1720 | ||
1721 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER); | |
1722 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1723 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1724 | cmd->support_level = cpu_to_le16(dBm); | |
1725 | ||
1726 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1727 | kfree(cmd); | |
1728 | ||
1729 | return rc; | |
1730 | } | |
1731 | ||
1732 | /* | |
1733 | * CMD_SET_PRE_SCAN. | |
1734 | */ | |
1735 | struct mwl8k_cmd_set_pre_scan { | |
1736 | struct mwl8k_cmd_pkt header; | |
1737 | } __attribute__((packed)); | |
1738 | ||
1739 | static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw) | |
1740 | { | |
1741 | struct mwl8k_cmd_set_pre_scan *cmd; | |
1742 | int rc; | |
1743 | ||
1744 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1745 | if (cmd == NULL) | |
1746 | return -ENOMEM; | |
1747 | ||
1748 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN); | |
1749 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1750 | ||
1751 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1752 | kfree(cmd); | |
1753 | ||
1754 | return rc; | |
1755 | } | |
1756 | ||
1757 | /* | |
1758 | * CMD_SET_POST_SCAN. | |
1759 | */ | |
1760 | struct mwl8k_cmd_set_post_scan { | |
1761 | struct mwl8k_cmd_pkt header; | |
1762 | __le32 isibss; | |
d89173f2 | 1763 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
1764 | } __attribute__((packed)); |
1765 | ||
1766 | static int | |
ce9e2e1b | 1767 | mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac) |
a66098da LB |
1768 | { |
1769 | struct mwl8k_cmd_set_post_scan *cmd; | |
1770 | int rc; | |
1771 | ||
1772 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1773 | if (cmd == NULL) | |
1774 | return -ENOMEM; | |
1775 | ||
1776 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN); | |
1777 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1778 | cmd->isibss = 0; | |
d89173f2 | 1779 | memcpy(cmd->bssid, mac, ETH_ALEN); |
a66098da LB |
1780 | |
1781 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1782 | kfree(cmd); | |
1783 | ||
1784 | return rc; | |
1785 | } | |
1786 | ||
1787 | /* | |
1788 | * CMD_SET_RF_CHANNEL. | |
1789 | */ | |
1790 | struct mwl8k_cmd_set_rf_channel { | |
1791 | struct mwl8k_cmd_pkt header; | |
1792 | __le16 action; | |
1793 | __u8 current_channel; | |
1794 | __le32 channel_flags; | |
1795 | } __attribute__((packed)); | |
1796 | ||
1797 | static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw, | |
1798 | struct ieee80211_channel *channel) | |
1799 | { | |
1800 | struct mwl8k_cmd_set_rf_channel *cmd; | |
1801 | int rc; | |
1802 | ||
1803 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1804 | if (cmd == NULL) | |
1805 | return -ENOMEM; | |
1806 | ||
1807 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL); | |
1808 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1809 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1810 | cmd->current_channel = channel->hw_value; | |
1811 | if (channel->band == IEEE80211_BAND_2GHZ) | |
1812 | cmd->channel_flags = cpu_to_le32(0x00000081); | |
1813 | else | |
1814 | cmd->channel_flags = cpu_to_le32(0x00000000); | |
1815 | ||
1816 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1817 | kfree(cmd); | |
1818 | ||
1819 | return rc; | |
1820 | } | |
1821 | ||
1822 | /* | |
1823 | * CMD_SET_SLOT. | |
1824 | */ | |
1825 | struct mwl8k_cmd_set_slot { | |
1826 | struct mwl8k_cmd_pkt header; | |
1827 | __le16 action; | |
1828 | __u8 short_slot; | |
1829 | } __attribute__((packed)); | |
1830 | ||
5539bb51 | 1831 | static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time) |
a66098da LB |
1832 | { |
1833 | struct mwl8k_cmd_set_slot *cmd; | |
1834 | int rc; | |
1835 | ||
1836 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1837 | if (cmd == NULL) | |
1838 | return -ENOMEM; | |
1839 | ||
1840 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT); | |
1841 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1842 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
5539bb51 | 1843 | cmd->short_slot = short_slot_time; |
a66098da LB |
1844 | |
1845 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1846 | kfree(cmd); | |
1847 | ||
1848 | return rc; | |
1849 | } | |
1850 | ||
1851 | /* | |
1852 | * CMD_MIMO_CONFIG. | |
1853 | */ | |
1854 | struct mwl8k_cmd_mimo_config { | |
1855 | struct mwl8k_cmd_pkt header; | |
1856 | __le32 action; | |
1857 | __u8 rx_antenna_map; | |
1858 | __u8 tx_antenna_map; | |
1859 | } __attribute__((packed)); | |
1860 | ||
1861 | static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx) | |
1862 | { | |
1863 | struct mwl8k_cmd_mimo_config *cmd; | |
1864 | int rc; | |
1865 | ||
1866 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1867 | if (cmd == NULL) | |
1868 | return -ENOMEM; | |
1869 | ||
1870 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG); | |
1871 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1872 | cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET); | |
1873 | cmd->rx_antenna_map = rx; | |
1874 | cmd->tx_antenna_map = tx; | |
1875 | ||
1876 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1877 | kfree(cmd); | |
1878 | ||
1879 | return rc; | |
1880 | } | |
1881 | ||
1882 | /* | |
1883 | * CMD_ENABLE_SNIFFER. | |
1884 | */ | |
1885 | struct mwl8k_cmd_enable_sniffer { | |
1886 | struct mwl8k_cmd_pkt header; | |
1887 | __le32 action; | |
1888 | } __attribute__((packed)); | |
1889 | ||
1890 | static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable) | |
1891 | { | |
1892 | struct mwl8k_cmd_enable_sniffer *cmd; | |
1893 | int rc; | |
1894 | ||
1895 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1896 | if (cmd == NULL) | |
1897 | return -ENOMEM; | |
1898 | ||
1899 | cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); | |
1900 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 1901 | cmd->action = cpu_to_le32(!!enable); |
a66098da LB |
1902 | |
1903 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1904 | kfree(cmd); | |
1905 | ||
1906 | return rc; | |
1907 | } | |
1908 | ||
1909 | /* | |
ce9e2e1b | 1910 | * CMD_SET_RATEADAPT_MODE. |
a66098da LB |
1911 | */ |
1912 | struct mwl8k_cmd_set_rate_adapt_mode { | |
1913 | struct mwl8k_cmd_pkt header; | |
1914 | __le16 action; | |
1915 | __le16 mode; | |
1916 | } __attribute__((packed)); | |
1917 | ||
1918 | static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw *hw, __u16 mode) | |
1919 | { | |
1920 | struct mwl8k_cmd_set_rate_adapt_mode *cmd; | |
1921 | int rc; | |
1922 | ||
1923 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1924 | if (cmd == NULL) | |
1925 | return -ENOMEM; | |
1926 | ||
1927 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); | |
1928 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1929 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1930 | cmd->mode = cpu_to_le16(mode); | |
1931 | ||
1932 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1933 | kfree(cmd); | |
1934 | ||
1935 | return rc; | |
1936 | } | |
1937 | ||
1938 | /* | |
1939 | * CMD_SET_WMM_MODE. | |
1940 | */ | |
1941 | struct mwl8k_cmd_set_wmm { | |
1942 | struct mwl8k_cmd_pkt header; | |
1943 | __le16 action; | |
1944 | } __attribute__((packed)); | |
1945 | ||
1946 | static int mwl8k_set_wmm(struct ieee80211_hw *hw, bool enable) | |
1947 | { | |
1948 | struct mwl8k_priv *priv = hw->priv; | |
1949 | struct mwl8k_cmd_set_wmm *cmd; | |
1950 | int rc; | |
1951 | ||
1952 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1953 | if (cmd == NULL) | |
1954 | return -ENOMEM; | |
1955 | ||
1956 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); | |
1957 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
0439b1f5 | 1958 | cmd->action = cpu_to_le16(!!enable); |
a66098da LB |
1959 | |
1960 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1961 | kfree(cmd); | |
1962 | ||
1963 | if (!rc) | |
0439b1f5 | 1964 | priv->wmm_enabled = enable; |
a66098da LB |
1965 | |
1966 | return rc; | |
1967 | } | |
1968 | ||
1969 | /* | |
1970 | * CMD_SET_RTS_THRESHOLD. | |
1971 | */ | |
1972 | struct mwl8k_cmd_rts_threshold { | |
1973 | struct mwl8k_cmd_pkt header; | |
1974 | __le16 action; | |
1975 | __le16 threshold; | |
1976 | } __attribute__((packed)); | |
1977 | ||
1978 | static int mwl8k_rts_threshold(struct ieee80211_hw *hw, | |
733d3067 | 1979 | u16 action, u16 threshold) |
a66098da LB |
1980 | { |
1981 | struct mwl8k_cmd_rts_threshold *cmd; | |
1982 | int rc; | |
1983 | ||
1984 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1985 | if (cmd == NULL) | |
1986 | return -ENOMEM; | |
1987 | ||
1988 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); | |
1989 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1990 | cmd->action = cpu_to_le16(action); | |
733d3067 | 1991 | cmd->threshold = cpu_to_le16(threshold); |
a66098da LB |
1992 | |
1993 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1994 | kfree(cmd); | |
1995 | ||
1996 | return rc; | |
1997 | } | |
1998 | ||
1999 | /* | |
2000 | * CMD_SET_EDCA_PARAMS. | |
2001 | */ | |
2002 | struct mwl8k_cmd_set_edca_params { | |
2003 | struct mwl8k_cmd_pkt header; | |
2004 | ||
2005 | /* See MWL8K_SET_EDCA_XXX below */ | |
2006 | __le16 action; | |
2007 | ||
2008 | /* TX opportunity in units of 32 us */ | |
2009 | __le16 txop; | |
2010 | ||
2011 | /* Log exponent of max contention period: 0...15*/ | |
2012 | __u8 log_cw_max; | |
2013 | ||
2014 | /* Log exponent of min contention period: 0...15 */ | |
2015 | __u8 log_cw_min; | |
2016 | ||
2017 | /* Adaptive interframe spacing in units of 32us */ | |
2018 | __u8 aifs; | |
2019 | ||
2020 | /* TX queue to configure */ | |
2021 | __u8 txq; | |
2022 | } __attribute__((packed)); | |
2023 | ||
a66098da LB |
2024 | #define MWL8K_SET_EDCA_CW 0x01 |
2025 | #define MWL8K_SET_EDCA_TXOP 0x02 | |
2026 | #define MWL8K_SET_EDCA_AIFS 0x04 | |
2027 | ||
2028 | #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ | |
2029 | MWL8K_SET_EDCA_TXOP | \ | |
2030 | MWL8K_SET_EDCA_AIFS) | |
2031 | ||
2032 | static int | |
2033 | mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, | |
2034 | __u16 cw_min, __u16 cw_max, | |
2035 | __u8 aifs, __u16 txop) | |
2036 | { | |
2037 | struct mwl8k_cmd_set_edca_params *cmd; | |
a66098da LB |
2038 | int rc; |
2039 | ||
2040 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2041 | if (cmd == NULL) | |
2042 | return -ENOMEM; | |
2043 | ||
a66098da LB |
2044 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); |
2045 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
2046 | cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); |
2047 | cmd->txop = cpu_to_le16(txop); | |
ce9e2e1b LB |
2048 | cmd->log_cw_max = (u8)ilog2(cw_max + 1); |
2049 | cmd->log_cw_min = (u8)ilog2(cw_min + 1); | |
a66098da LB |
2050 | cmd->aifs = aifs; |
2051 | cmd->txq = qnum; | |
2052 | ||
2053 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2054 | kfree(cmd); | |
2055 | ||
2056 | return rc; | |
2057 | } | |
2058 | ||
2059 | /* | |
2060 | * CMD_FINALIZE_JOIN. | |
2061 | */ | |
2062 | ||
2063 | /* FJ beacon buffer size is compiled into the firmware. */ | |
2064 | #define MWL8K_FJ_BEACON_MAXLEN 128 | |
2065 | ||
2066 | struct mwl8k_cmd_finalize_join { | |
2067 | struct mwl8k_cmd_pkt header; | |
2068 | __le32 sleep_interval; /* Number of beacon periods to sleep */ | |
2069 | __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; | |
2070 | } __attribute__((packed)); | |
2071 | ||
2072 | static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, | |
2073 | __u16 framelen, __u16 dtim) | |
2074 | { | |
2075 | struct mwl8k_cmd_finalize_join *cmd; | |
2076 | struct ieee80211_mgmt *payload = frame; | |
2077 | u16 hdrlen; | |
2078 | u32 payload_len; | |
2079 | int rc; | |
2080 | ||
2081 | if (frame == NULL) | |
2082 | return -EINVAL; | |
2083 | ||
2084 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2085 | if (cmd == NULL) | |
2086 | return -ENOMEM; | |
2087 | ||
2088 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); | |
2089 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 2090 | cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); |
a66098da LB |
2091 | |
2092 | hdrlen = ieee80211_hdrlen(payload->frame_control); | |
2093 | ||
2094 | payload_len = framelen > hdrlen ? framelen - hdrlen : 0; | |
2095 | ||
2096 | /* XXX TBD Might just have to abort and return an error */ | |
2097 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) | |
2098 | printk(KERN_ERR "%s(): WARNING: Incomplete beacon " | |
c2c357ce LB |
2099 | "sent to firmware. Sz=%u MAX=%u\n", __func__, |
2100 | payload_len, MWL8K_FJ_BEACON_MAXLEN); | |
a66098da | 2101 | |
ce9e2e1b LB |
2102 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) |
2103 | payload_len = MWL8K_FJ_BEACON_MAXLEN; | |
a66098da LB |
2104 | |
2105 | if (payload && payload_len) | |
2106 | memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); | |
2107 | ||
2108 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2109 | kfree(cmd); | |
2110 | return rc; | |
2111 | } | |
2112 | ||
2113 | /* | |
2114 | * CMD_UPDATE_STADB. | |
2115 | */ | |
2116 | struct mwl8k_cmd_update_sta_db { | |
2117 | struct mwl8k_cmd_pkt header; | |
2118 | ||
2119 | /* See STADB_ACTION_TYPE */ | |
2120 | __le32 action; | |
2121 | ||
2122 | /* Peer MAC address */ | |
d89173f2 | 2123 | __u8 peer_addr[ETH_ALEN]; |
a66098da LB |
2124 | |
2125 | __le32 reserved; | |
2126 | ||
2127 | /* Peer info - valid during add/update. */ | |
2128 | struct peer_capability_info peer_info; | |
2129 | } __attribute__((packed)); | |
2130 | ||
2131 | static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, | |
2132 | struct ieee80211_vif *vif, __u32 action) | |
2133 | { | |
2134 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2135 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2136 | struct mwl8k_cmd_update_sta_db *cmd; | |
2137 | struct peer_capability_info *peer_info; | |
2138 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
a66098da LB |
2139 | int rc; |
2140 | __u8 count, *rates; | |
2141 | ||
2142 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2143 | if (cmd == NULL) | |
2144 | return -ENOMEM; | |
2145 | ||
2146 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
2147 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2148 | ||
2149 | cmd->action = cpu_to_le32(action); | |
2150 | peer_info = &cmd->peer_info; | |
d89173f2 | 2151 | memcpy(cmd->peer_addr, mv_vif->bssid, ETH_ALEN); |
a66098da LB |
2152 | |
2153 | switch (action) { | |
2154 | case MWL8K_STA_DB_ADD_ENTRY: | |
2155 | case MWL8K_STA_DB_MODIFY_ENTRY: | |
2156 | /* Build peer_info block */ | |
2157 | peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; | |
2158 | peer_info->basic_caps = cpu_to_le16(info->assoc_capability); | |
2159 | peer_info->interop = 1; | |
2160 | peer_info->amsdu_enabled = 0; | |
2161 | ||
2162 | rates = peer_info->legacy_rates; | |
ce9e2e1b | 2163 | for (count = 0; count < mv_vif->legacy_nrates; count++) |
a66098da LB |
2164 | rates[count] = bitrates[count].hw_value; |
2165 | ||
2166 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2167 | if (rc == 0) | |
2168 | mv_vif->peer_id = peer_info->station_id; | |
2169 | ||
2170 | break; | |
2171 | ||
2172 | case MWL8K_STA_DB_DEL_ENTRY: | |
2173 | case MWL8K_STA_DB_FLUSH: | |
2174 | default: | |
2175 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2176 | if (rc == 0) | |
2177 | mv_vif->peer_id = 0; | |
2178 | break; | |
2179 | } | |
2180 | kfree(cmd); | |
2181 | ||
2182 | return rc; | |
2183 | } | |
2184 | ||
2185 | /* | |
2186 | * CMD_SET_AID. | |
2187 | */ | |
a66098da LB |
2188 | #define MWL8K_RATE_INDEX_MAX_ARRAY 14 |
2189 | ||
2190 | #define MWL8K_FRAME_PROT_DISABLED 0x00 | |
2191 | #define MWL8K_FRAME_PROT_11G 0x07 | |
2192 | #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 | |
2193 | #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 | |
a66098da LB |
2194 | |
2195 | struct mwl8k_cmd_update_set_aid { | |
2196 | struct mwl8k_cmd_pkt header; | |
2197 | __le16 aid; | |
2198 | ||
2199 | /* AP's MAC address (BSSID) */ | |
d89173f2 | 2200 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
2201 | __le16 protection_mode; |
2202 | __u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2203 | } __attribute__((packed)); | |
2204 | ||
2205 | static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, | |
2206 | struct ieee80211_vif *vif) | |
2207 | { | |
2208 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2209 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2210 | struct mwl8k_cmd_update_set_aid *cmd; | |
2211 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2212 | int count; | |
2213 | u16 prot_mode; | |
2214 | int rc; | |
2215 | ||
2216 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2217 | if (cmd == NULL) | |
2218 | return -ENOMEM; | |
2219 | ||
2220 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); | |
2221 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2222 | cmd->aid = cpu_to_le16(info->aid); | |
2223 | ||
d89173f2 | 2224 | memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN); |
a66098da | 2225 | |
a66098da LB |
2226 | if (info->use_cts_prot) { |
2227 | prot_mode = MWL8K_FRAME_PROT_11G; | |
2228 | } else { | |
9ed6bcce | 2229 | switch (info->ht_operation_mode & |
a66098da LB |
2230 | IEEE80211_HT_OP_MODE_PROTECTION) { |
2231 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
2232 | prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; | |
2233 | break; | |
2234 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
2235 | prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; | |
2236 | break; | |
2237 | default: | |
2238 | prot_mode = MWL8K_FRAME_PROT_DISABLED; | |
2239 | break; | |
2240 | } | |
2241 | } | |
a66098da LB |
2242 | cmd->protection_mode = cpu_to_le16(prot_mode); |
2243 | ||
2244 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2245 | cmd->supp_rates[count] = bitrates[count].hw_value; | |
2246 | ||
2247 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2248 | kfree(cmd); | |
2249 | ||
2250 | return rc; | |
2251 | } | |
2252 | ||
2253 | /* | |
2254 | * CMD_SET_RATE. | |
2255 | */ | |
2256 | struct mwl8k_cmd_update_rateset { | |
2257 | struct mwl8k_cmd_pkt header; | |
2258 | __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2259 | ||
2260 | /* Bitmap for supported MCS codes. */ | |
2261 | __u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2262 | __u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2263 | } __attribute__((packed)); | |
2264 | ||
2265 | static int mwl8k_update_rateset(struct ieee80211_hw *hw, | |
2266 | struct ieee80211_vif *vif) | |
2267 | { | |
2268 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2269 | struct mwl8k_cmd_update_rateset *cmd; | |
2270 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2271 | int count; | |
2272 | int rc; | |
2273 | ||
2274 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2275 | if (cmd == NULL) | |
2276 | return -ENOMEM; | |
2277 | ||
2278 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); | |
2279 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2280 | ||
2281 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2282 | cmd->legacy_rates[count] = bitrates[count].hw_value; | |
2283 | ||
2284 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2285 | kfree(cmd); | |
2286 | ||
2287 | return rc; | |
2288 | } | |
2289 | ||
2290 | /* | |
2291 | * CMD_USE_FIXED_RATE. | |
2292 | */ | |
2293 | #define MWL8K_RATE_TABLE_SIZE 8 | |
2294 | #define MWL8K_UCAST_RATE 0 | |
a66098da LB |
2295 | #define MWL8K_USE_AUTO_RATE 0x0002 |
2296 | ||
2297 | struct mwl8k_rate_entry { | |
2298 | /* Set to 1 if HT rate, 0 if legacy. */ | |
2299 | __le32 is_ht_rate; | |
2300 | ||
2301 | /* Set to 1 to use retry_count field. */ | |
2302 | __le32 enable_retry; | |
2303 | ||
2304 | /* Specified legacy rate or MCS. */ | |
2305 | __le32 rate; | |
2306 | ||
2307 | /* Number of allowed retries. */ | |
2308 | __le32 retry_count; | |
2309 | } __attribute__((packed)); | |
2310 | ||
2311 | struct mwl8k_rate_table { | |
2312 | /* 1 to allow specified rate and below */ | |
2313 | __le32 allow_rate_drop; | |
2314 | __le32 num_rates; | |
2315 | struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE]; | |
2316 | } __attribute__((packed)); | |
2317 | ||
2318 | struct mwl8k_cmd_use_fixed_rate { | |
2319 | struct mwl8k_cmd_pkt header; | |
2320 | __le32 action; | |
2321 | struct mwl8k_rate_table rate_table; | |
2322 | ||
2323 | /* Unicast, Broadcast or Multicast */ | |
2324 | __le32 rate_type; | |
2325 | __le32 reserved1; | |
2326 | __le32 reserved2; | |
2327 | } __attribute__((packed)); | |
2328 | ||
2329 | static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw, | |
2330 | u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table) | |
2331 | { | |
2332 | struct mwl8k_cmd_use_fixed_rate *cmd; | |
2333 | int count; | |
2334 | int rc; | |
2335 | ||
2336 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2337 | if (cmd == NULL) | |
2338 | return -ENOMEM; | |
2339 | ||
2340 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
2341 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2342 | ||
2343 | cmd->action = cpu_to_le32(action); | |
2344 | cmd->rate_type = cpu_to_le32(rate_type); | |
2345 | ||
2346 | if (rate_table != NULL) { | |
c2c357ce LB |
2347 | /* |
2348 | * Copy over each field manually so that endian | |
2349 | * conversion can be done. | |
2350 | */ | |
a66098da LB |
2351 | cmd->rate_table.allow_rate_drop = |
2352 | cpu_to_le32(rate_table->allow_rate_drop); | |
2353 | cmd->rate_table.num_rates = | |
2354 | cpu_to_le32(rate_table->num_rates); | |
2355 | ||
2356 | for (count = 0; count < rate_table->num_rates; count++) { | |
2357 | struct mwl8k_rate_entry *dst = | |
2358 | &cmd->rate_table.rate_entry[count]; | |
2359 | struct mwl8k_rate_entry *src = | |
2360 | &rate_table->rate_entry[count]; | |
2361 | ||
2362 | dst->is_ht_rate = cpu_to_le32(src->is_ht_rate); | |
2363 | dst->enable_retry = cpu_to_le32(src->enable_retry); | |
2364 | dst->rate = cpu_to_le32(src->rate); | |
2365 | dst->retry_count = cpu_to_le32(src->retry_count); | |
2366 | } | |
2367 | } | |
2368 | ||
2369 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2370 | kfree(cmd); | |
2371 | ||
2372 | return rc; | |
2373 | } | |
2374 | ||
2375 | ||
2376 | /* | |
2377 | * Interrupt handling. | |
2378 | */ | |
2379 | static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) | |
2380 | { | |
2381 | struct ieee80211_hw *hw = dev_id; | |
2382 | struct mwl8k_priv *priv = hw->priv; | |
2383 | u32 status; | |
2384 | ||
2385 | status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2386 | iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2387 | ||
a66098da LB |
2388 | if (!status) |
2389 | return IRQ_NONE; | |
2390 | ||
2391 | if (status & MWL8K_A2H_INT_TX_DONE) | |
2392 | tasklet_schedule(&priv->tx_reclaim_task); | |
2393 | ||
2394 | if (status & MWL8K_A2H_INT_RX_READY) { | |
2395 | while (rxq_process(hw, 0, 1)) | |
2396 | rxq_refill(hw, 0, 1); | |
2397 | } | |
2398 | ||
2399 | if (status & MWL8K_A2H_INT_OPC_DONE) { | |
618952a7 | 2400 | if (priv->hostcmd_wait != NULL) |
a66098da | 2401 | complete(priv->hostcmd_wait); |
a66098da LB |
2402 | } |
2403 | ||
2404 | if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { | |
618952a7 | 2405 | if (!mutex_is_locked(&priv->fw_mutex) && |
88de754a | 2406 | priv->radio_on && priv->pending_tx_pkts) |
618952a7 | 2407 | mwl8k_tx_start(priv); |
a66098da LB |
2408 | } |
2409 | ||
2410 | return IRQ_HANDLED; | |
2411 | } | |
2412 | ||
2413 | ||
2414 | /* | |
2415 | * Core driver operations. | |
2416 | */ | |
2417 | static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
2418 | { | |
2419 | struct mwl8k_priv *priv = hw->priv; | |
2420 | int index = skb_get_queue_mapping(skb); | |
2421 | int rc; | |
2422 | ||
2423 | if (priv->current_channel == NULL) { | |
2424 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
c2c357ce | 2425 | "disabled\n", wiphy_name(hw->wiphy)); |
a66098da LB |
2426 | dev_kfree_skb(skb); |
2427 | return NETDEV_TX_OK; | |
2428 | } | |
2429 | ||
2430 | rc = mwl8k_txq_xmit(hw, index, skb); | |
2431 | ||
2432 | return rc; | |
2433 | } | |
2434 | ||
a66098da LB |
2435 | static int mwl8k_start(struct ieee80211_hw *hw) |
2436 | { | |
a66098da LB |
2437 | struct mwl8k_priv *priv = hw->priv; |
2438 | int rc; | |
2439 | ||
a66098da LB |
2440 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, |
2441 | IRQF_SHARED, MWL8K_NAME, hw); | |
2442 | if (rc) { | |
2443 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 2444 | wiphy_name(hw->wiphy)); |
2ec610cb | 2445 | return -EIO; |
a66098da LB |
2446 | } |
2447 | ||
2ec610cb LB |
2448 | /* Enable tx reclaim tasklet */ |
2449 | tasklet_enable(&priv->tx_reclaim_task); | |
2450 | ||
a66098da | 2451 | /* Enable interrupts */ |
c23b5a69 | 2452 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da | 2453 | |
2ec610cb LB |
2454 | rc = mwl8k_fw_lock(hw); |
2455 | if (!rc) { | |
2456 | rc = mwl8k_cmd_802_11_radio_enable(hw); | |
a66098da | 2457 | |
2ec610cb LB |
2458 | if (!rc) |
2459 | rc = mwl8k_cmd_set_pre_scan(hw); | |
a66098da | 2460 | |
2ec610cb LB |
2461 | if (!rc) |
2462 | rc = mwl8k_cmd_set_post_scan(hw, | |
2463 | "\x00\x00\x00\x00\x00\x00"); | |
2464 | ||
2465 | if (!rc) | |
2466 | rc = mwl8k_cmd_setrateadaptmode(hw, 0); | |
a66098da | 2467 | |
2ec610cb LB |
2468 | if (!rc) |
2469 | rc = mwl8k_set_wmm(hw, 0); | |
a66098da | 2470 | |
2ec610cb LB |
2471 | if (!rc) |
2472 | rc = mwl8k_enable_sniffer(hw, 0); | |
a66098da | 2473 | |
2ec610cb LB |
2474 | mwl8k_fw_unlock(hw); |
2475 | } | |
2476 | ||
2477 | if (rc) { | |
2478 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); | |
2479 | free_irq(priv->pdev->irq, hw); | |
2480 | tasklet_disable(&priv->tx_reclaim_task); | |
2481 | } | |
a66098da LB |
2482 | |
2483 | return rc; | |
2484 | } | |
2485 | ||
a66098da LB |
2486 | static void mwl8k_stop(struct ieee80211_hw *hw) |
2487 | { | |
a66098da LB |
2488 | struct mwl8k_priv *priv = hw->priv; |
2489 | int i; | |
2490 | ||
d3cea0b8 | 2491 | mwl8k_cmd_802_11_radio_disable(hw); |
a66098da LB |
2492 | |
2493 | ieee80211_stop_queues(hw); | |
2494 | ||
a66098da | 2495 | /* Disable interrupts */ |
a66098da | 2496 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2497 | free_irq(priv->pdev->irq, hw); |
2498 | ||
2499 | /* Stop finalize join worker */ | |
2500 | cancel_work_sync(&priv->finalize_join_worker); | |
2501 | if (priv->beacon_skb != NULL) | |
2502 | dev_kfree_skb(priv->beacon_skb); | |
2503 | ||
2504 | /* Stop tx reclaim tasklet */ | |
2505 | tasklet_disable(&priv->tx_reclaim_task); | |
2506 | ||
2507 | /* Stop config thread */ | |
2508 | flush_workqueue(priv->config_wq); | |
2509 | ||
2510 | /* Return all skbs to mac80211 */ | |
2511 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2512 | mwl8k_txq_reclaim(hw, i, 1); | |
2513 | } | |
2514 | ||
2515 | static int mwl8k_add_interface(struct ieee80211_hw *hw, | |
2516 | struct ieee80211_if_init_conf *conf) | |
2517 | { | |
2518 | struct mwl8k_priv *priv = hw->priv; | |
2519 | struct mwl8k_vif *mwl8k_vif; | |
2520 | ||
2521 | /* | |
2522 | * We only support one active interface at a time. | |
2523 | */ | |
2524 | if (priv->vif != NULL) | |
2525 | return -EBUSY; | |
2526 | ||
2527 | /* | |
2528 | * We only support managed interfaces for now. | |
2529 | */ | |
240e86ef | 2530 | if (conf->type != NL80211_IFTYPE_STATION) |
a66098da LB |
2531 | return -EINVAL; |
2532 | ||
2533 | /* Clean out driver private area */ | |
2534 | mwl8k_vif = MWL8K_VIF(conf->vif); | |
2535 | memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); | |
2536 | ||
2537 | /* Save the mac address */ | |
d89173f2 | 2538 | memcpy(mwl8k_vif->mac_addr, conf->mac_addr, ETH_ALEN); |
a66098da LB |
2539 | |
2540 | /* Back pointer to parent config block */ | |
2541 | mwl8k_vif->priv = priv; | |
2542 | ||
2543 | /* Setup initial PHY parameters */ | |
ce9e2e1b | 2544 | memcpy(mwl8k_vif->legacy_rates, |
a66098da LB |
2545 | priv->rates, sizeof(mwl8k_vif->legacy_rates)); |
2546 | mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); | |
2547 | ||
2548 | /* Set Initial sequence number to zero */ | |
2549 | mwl8k_vif->seqno = 0; | |
2550 | ||
2551 | priv->vif = conf->vif; | |
2552 | priv->current_channel = NULL; | |
2553 | ||
2554 | return 0; | |
2555 | } | |
2556 | ||
2557 | static void mwl8k_remove_interface(struct ieee80211_hw *hw, | |
2558 | struct ieee80211_if_init_conf *conf) | |
2559 | { | |
2560 | struct mwl8k_priv *priv = hw->priv; | |
2561 | ||
2562 | if (priv->vif == NULL) | |
2563 | return; | |
2564 | ||
2565 | priv->vif = NULL; | |
2566 | } | |
2567 | ||
ee03a932 | 2568 | static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) |
a66098da | 2569 | { |
a66098da LB |
2570 | struct ieee80211_conf *conf = &hw->conf; |
2571 | struct mwl8k_priv *priv = hw->priv; | |
ee03a932 | 2572 | int rc; |
a66098da | 2573 | |
7595d67a LB |
2574 | if (conf->flags & IEEE80211_CONF_IDLE) { |
2575 | mwl8k_cmd_802_11_radio_disable(hw); | |
2576 | priv->current_channel = NULL; | |
ee03a932 | 2577 | return 0; |
7595d67a LB |
2578 | } |
2579 | ||
ee03a932 LB |
2580 | rc = mwl8k_fw_lock(hw); |
2581 | if (rc) | |
2582 | return rc; | |
a66098da | 2583 | |
ee03a932 LB |
2584 | rc = mwl8k_cmd_802_11_radio_enable(hw); |
2585 | if (rc) | |
2586 | goto out; | |
a66098da | 2587 | |
ee03a932 LB |
2588 | rc = mwl8k_cmd_set_rf_channel(hw, conf->channel); |
2589 | if (rc) | |
2590 | goto out; | |
2591 | ||
2592 | priv->current_channel = conf->channel; | |
a66098da LB |
2593 | |
2594 | if (conf->power_level > 18) | |
2595 | conf->power_level = 18; | |
ee03a932 LB |
2596 | rc = mwl8k_cmd_802_11_rf_tx_power(hw, conf->power_level); |
2597 | if (rc) | |
2598 | goto out; | |
a66098da LB |
2599 | |
2600 | if (mwl8k_cmd_mimo_config(hw, 0x7, 0x7)) | |
2601 | rc = -EINVAL; | |
2602 | ||
ee03a932 LB |
2603 | out: |
2604 | mwl8k_fw_unlock(hw); | |
a66098da | 2605 | |
ee03a932 | 2606 | return rc; |
a66098da LB |
2607 | } |
2608 | ||
3a980d0a LB |
2609 | static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, |
2610 | struct ieee80211_vif *vif, | |
2611 | struct ieee80211_bss_conf *info, | |
2612 | u32 changed) | |
a66098da | 2613 | { |
a66098da LB |
2614 | struct mwl8k_priv *priv = hw->priv; |
2615 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3a980d0a LB |
2616 | int rc; |
2617 | ||
2618 | if (changed & BSS_CHANGED_BSSID) | |
2619 | memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); | |
2620 | ||
2621 | if ((changed & BSS_CHANGED_ASSOC) == 0) | |
2622 | return; | |
a66098da | 2623 | |
a66098da LB |
2624 | priv->capture_beacon = false; |
2625 | ||
3a980d0a | 2626 | rc = mwl8k_fw_lock(hw); |
942457d6 | 2627 | if (rc) |
3a980d0a LB |
2628 | return; |
2629 | ||
a66098da LB |
2630 | if (info->assoc) { |
2631 | memcpy(&mwl8k_vif->bss_info, info, | |
2632 | sizeof(struct ieee80211_bss_conf)); | |
2633 | ||
2634 | /* Install rates */ | |
3a980d0a LB |
2635 | rc = mwl8k_update_rateset(hw, vif); |
2636 | if (rc) | |
2637 | goto out; | |
a66098da LB |
2638 | |
2639 | /* Turn on rate adaptation */ | |
3a980d0a LB |
2640 | rc = mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE, |
2641 | MWL8K_UCAST_RATE, NULL); | |
2642 | if (rc) | |
2643 | goto out; | |
a66098da LB |
2644 | |
2645 | /* Set radio preamble */ | |
3a980d0a LB |
2646 | rc = mwl8k_set_radio_preamble(hw, info->use_short_preamble); |
2647 | if (rc) | |
2648 | goto out; | |
a66098da LB |
2649 | |
2650 | /* Set slot time */ | |
3a980d0a LB |
2651 | rc = mwl8k_cmd_set_slot(hw, info->use_short_slot); |
2652 | if (rc) | |
2653 | goto out; | |
a66098da LB |
2654 | |
2655 | /* Update peer rate info */ | |
3a980d0a LB |
2656 | rc = mwl8k_cmd_update_sta_db(hw, vif, |
2657 | MWL8K_STA_DB_MODIFY_ENTRY); | |
2658 | if (rc) | |
2659 | goto out; | |
a66098da LB |
2660 | |
2661 | /* Set AID */ | |
3a980d0a LB |
2662 | rc = mwl8k_cmd_set_aid(hw, vif); |
2663 | if (rc) | |
2664 | goto out; | |
a66098da LB |
2665 | |
2666 | /* | |
2667 | * Finalize the join. Tell rx handler to process | |
2668 | * next beacon from our BSSID. | |
2669 | */ | |
d89173f2 | 2670 | memcpy(priv->capture_bssid, mwl8k_vif->bssid, ETH_ALEN); |
a66098da LB |
2671 | priv->capture_beacon = true; |
2672 | } else { | |
3a980d0a | 2673 | rc = mwl8k_cmd_update_sta_db(hw, vif, MWL8K_STA_DB_DEL_ENTRY); |
a66098da LB |
2674 | memset(&mwl8k_vif->bss_info, 0, |
2675 | sizeof(struct ieee80211_bss_conf)); | |
d89173f2 | 2676 | memset(mwl8k_vif->bssid, 0, ETH_ALEN); |
a66098da LB |
2677 | } |
2678 | ||
3a980d0a LB |
2679 | out: |
2680 | mwl8k_fw_unlock(hw); | |
a66098da LB |
2681 | } |
2682 | ||
e81cd2d6 LB |
2683 | static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw, |
2684 | int mc_count, struct dev_addr_list *mclist) | |
2685 | { | |
2686 | struct mwl8k_cmd_pkt *cmd; | |
2687 | ||
2688 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, mc_count, mclist); | |
2689 | ||
2690 | return (unsigned long)cmd; | |
2691 | } | |
2692 | ||
e6935ea1 LB |
2693 | static void mwl8k_configure_filter(struct ieee80211_hw *hw, |
2694 | unsigned int changed_flags, | |
2695 | unsigned int *total_flags, | |
2696 | u64 multicast) | |
2697 | { | |
2698 | struct mwl8k_priv *priv = hw->priv; | |
e81cd2d6 | 2699 | struct mwl8k_cmd_pkt *multicast_adr_cmd; |
a66098da | 2700 | |
e6935ea1 LB |
2701 | /* Clear unsupported feature flags */ |
2702 | *total_flags &= FIF_BCN_PRBRESP_PROMISC; | |
a66098da | 2703 | |
e6935ea1 LB |
2704 | if (mwl8k_fw_lock(hw)) |
2705 | return; | |
a66098da | 2706 | |
e6935ea1 LB |
2707 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
2708 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
2709 | mwl8k_cmd_set_pre_scan(hw); | |
a66098da | 2710 | else { |
a94cc97e LB |
2711 | u8 *bssid; |
2712 | ||
2713 | bssid = "\x00\x00\x00\x00\x00\x00"; | |
2714 | if (priv->vif != NULL) | |
2715 | bssid = MWL8K_VIF(priv->vif)->bssid; | |
2716 | ||
e6935ea1 | 2717 | mwl8k_cmd_set_post_scan(hw, bssid); |
a66098da LB |
2718 | } |
2719 | } | |
2720 | ||
e6935ea1 LB |
2721 | multicast_adr_cmd = (void *)(unsigned long)multicast; |
2722 | if (multicast_adr_cmd != NULL) { | |
2723 | mwl8k_post_cmd(hw, multicast_adr_cmd); | |
2724 | kfree(multicast_adr_cmd); | |
2725 | } | |
a66098da | 2726 | |
e6935ea1 | 2727 | mwl8k_fw_unlock(hw); |
a66098da LB |
2728 | } |
2729 | ||
a66098da LB |
2730 | static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
2731 | { | |
733d3067 | 2732 | return mwl8k_rts_threshold(hw, MWL8K_CMD_SET, value); |
a66098da LB |
2733 | } |
2734 | ||
a66098da LB |
2735 | static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
2736 | const struct ieee80211_tx_queue_params *params) | |
2737 | { | |
3e4f542c | 2738 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 2739 | int rc; |
a66098da | 2740 | |
3e4f542c LB |
2741 | rc = mwl8k_fw_lock(hw); |
2742 | if (!rc) { | |
2743 | if (!priv->wmm_enabled) | |
2744 | rc = mwl8k_set_wmm(hw, 1); | |
a66098da | 2745 | |
3e4f542c LB |
2746 | if (!rc) |
2747 | rc = mwl8k_set_edca_params(hw, queue, | |
2748 | params->cw_min, | |
2749 | params->cw_max, | |
2750 | params->aifs, | |
2751 | params->txop); | |
2752 | ||
2753 | mwl8k_fw_unlock(hw); | |
a66098da | 2754 | } |
3e4f542c | 2755 | |
a66098da LB |
2756 | return rc; |
2757 | } | |
2758 | ||
2759 | static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, | |
2760 | struct ieee80211_tx_queue_stats *stats) | |
2761 | { | |
2762 | struct mwl8k_priv *priv = hw->priv; | |
2763 | struct mwl8k_tx_queue *txq; | |
2764 | int index; | |
2765 | ||
2766 | spin_lock_bh(&priv->tx_lock); | |
2767 | for (index = 0; index < MWL8K_TX_QUEUES; index++) { | |
2768 | txq = priv->txq + index; | |
2769 | memcpy(&stats[index], &txq->tx_stats, | |
2770 | sizeof(struct ieee80211_tx_queue_stats)); | |
2771 | } | |
2772 | spin_unlock_bh(&priv->tx_lock); | |
a66098da | 2773 | |
954ef509 | 2774 | return 0; |
a66098da LB |
2775 | } |
2776 | ||
2777 | static int mwl8k_get_stats(struct ieee80211_hw *hw, | |
2778 | struct ieee80211_low_level_stats *stats) | |
2779 | { | |
954ef509 | 2780 | return mwl8k_cmd_802_11_get_stat(hw, stats); |
a66098da LB |
2781 | } |
2782 | ||
2783 | static const struct ieee80211_ops mwl8k_ops = { | |
2784 | .tx = mwl8k_tx, | |
2785 | .start = mwl8k_start, | |
2786 | .stop = mwl8k_stop, | |
2787 | .add_interface = mwl8k_add_interface, | |
2788 | .remove_interface = mwl8k_remove_interface, | |
2789 | .config = mwl8k_config, | |
a66098da | 2790 | .bss_info_changed = mwl8k_bss_info_changed, |
3ac64bee | 2791 | .prepare_multicast = mwl8k_prepare_multicast, |
a66098da LB |
2792 | .configure_filter = mwl8k_configure_filter, |
2793 | .set_rts_threshold = mwl8k_set_rts_threshold, | |
2794 | .conf_tx = mwl8k_conf_tx, | |
2795 | .get_tx_stats = mwl8k_get_tx_stats, | |
2796 | .get_stats = mwl8k_get_stats, | |
2797 | }; | |
2798 | ||
2799 | static void mwl8k_tx_reclaim_handler(unsigned long data) | |
2800 | { | |
2801 | int i; | |
2802 | struct ieee80211_hw *hw = (struct ieee80211_hw *) data; | |
2803 | struct mwl8k_priv *priv = hw->priv; | |
2804 | ||
2805 | spin_lock_bh(&priv->tx_lock); | |
2806 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2807 | mwl8k_txq_reclaim(hw, i, 0); | |
2808 | ||
88de754a | 2809 | if (priv->tx_wait != NULL && !priv->pending_tx_pkts) { |
ce9e2e1b LB |
2810 | complete(priv->tx_wait); |
2811 | priv->tx_wait = NULL; | |
a66098da LB |
2812 | } |
2813 | spin_unlock_bh(&priv->tx_lock); | |
2814 | } | |
2815 | ||
2816 | static void mwl8k_finalize_join_worker(struct work_struct *work) | |
2817 | { | |
2818 | struct mwl8k_priv *priv = | |
2819 | container_of(work, struct mwl8k_priv, finalize_join_worker); | |
2820 | struct sk_buff *skb = priv->beacon_skb; | |
ce9e2e1b | 2821 | u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period; |
a66098da LB |
2822 | |
2823 | mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim); | |
2824 | dev_kfree_skb(skb); | |
2825 | ||
2826 | priv->beacon_skb = NULL; | |
2827 | } | |
2828 | ||
2829 | static int __devinit mwl8k_probe(struct pci_dev *pdev, | |
2830 | const struct pci_device_id *id) | |
2831 | { | |
2aa7b01f | 2832 | static int printed_version = 0; |
a66098da LB |
2833 | struct ieee80211_hw *hw; |
2834 | struct mwl8k_priv *priv; | |
a66098da LB |
2835 | int rc; |
2836 | int i; | |
2aa7b01f LB |
2837 | |
2838 | if (!printed_version) { | |
2839 | printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); | |
2840 | printed_version = 1; | |
2841 | } | |
a66098da LB |
2842 | |
2843 | rc = pci_enable_device(pdev); | |
2844 | if (rc) { | |
2845 | printk(KERN_ERR "%s: Cannot enable new PCI device\n", | |
2846 | MWL8K_NAME); | |
2847 | return rc; | |
2848 | } | |
2849 | ||
2850 | rc = pci_request_regions(pdev, MWL8K_NAME); | |
2851 | if (rc) { | |
2852 | printk(KERN_ERR "%s: Cannot obtain PCI resources\n", | |
2853 | MWL8K_NAME); | |
2854 | return rc; | |
2855 | } | |
2856 | ||
2857 | pci_set_master(pdev); | |
2858 | ||
2859 | hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); | |
2860 | if (hw == NULL) { | |
2861 | printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); | |
2862 | rc = -ENOMEM; | |
2863 | goto err_free_reg; | |
2864 | } | |
2865 | ||
2866 | priv = hw->priv; | |
2867 | priv->hw = hw; | |
2868 | priv->pdev = pdev; | |
0439b1f5 | 2869 | priv->wmm_enabled = false; |
a66098da | 2870 | priv->pending_tx_pkts = 0; |
a66098da | 2871 | |
a66098da LB |
2872 | SET_IEEE80211_DEV(hw, &pdev->dev); |
2873 | pci_set_drvdata(pdev, hw); | |
2874 | ||
2875 | priv->regs = pci_iomap(pdev, 1, 0x10000); | |
2876 | if (priv->regs == NULL) { | |
c2c357ce LB |
2877 | printk(KERN_ERR "%s: Cannot map device memory\n", |
2878 | wiphy_name(hw->wiphy)); | |
a66098da LB |
2879 | goto err_iounmap; |
2880 | } | |
2881 | ||
2882 | memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels)); | |
2883 | priv->band.band = IEEE80211_BAND_2GHZ; | |
2884 | priv->band.channels = priv->channels; | |
2885 | priv->band.n_channels = ARRAY_SIZE(mwl8k_channels); | |
2886 | priv->band.bitrates = priv->rates; | |
2887 | priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates); | |
2888 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
2889 | ||
2890 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates)); | |
2891 | memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates)); | |
2892 | ||
2893 | /* | |
2894 | * Extra headroom is the size of the required DMA header | |
2895 | * minus the size of the smallest 802.11 frame (CTS frame). | |
2896 | */ | |
2897 | hw->extra_tx_headroom = | |
2898 | sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); | |
2899 | ||
2900 | hw->channel_change_time = 10; | |
2901 | ||
2902 | hw->queues = MWL8K_TX_QUEUES; | |
2903 | ||
240e86ef | 2904 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
a66098da LB |
2905 | |
2906 | /* Set rssi and noise values to dBm */ | |
ce9e2e1b | 2907 | hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; |
a66098da LB |
2908 | hw->vif_data_size = sizeof(struct mwl8k_vif); |
2909 | priv->vif = NULL; | |
2910 | ||
2911 | /* Set default radio state and preamble */ | |
c46563b7 | 2912 | priv->radio_on = 0; |
68ce3884 | 2913 | priv->radio_short_preamble = 0; |
a66098da LB |
2914 | |
2915 | /* Finalize join worker */ | |
2916 | INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); | |
2917 | ||
2918 | /* TX reclaim tasklet */ | |
2919 | tasklet_init(&priv->tx_reclaim_task, | |
2920 | mwl8k_tx_reclaim_handler, (unsigned long)hw); | |
2921 | tasklet_disable(&priv->tx_reclaim_task); | |
2922 | ||
2923 | /* Config workthread */ | |
2924 | priv->config_wq = create_singlethread_workqueue("mwl8k_config"); | |
2925 | if (priv->config_wq == NULL) | |
2926 | goto err_iounmap; | |
2927 | ||
2928 | /* Power management cookie */ | |
2929 | priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); | |
2930 | if (priv->cookie == NULL) | |
2931 | goto err_iounmap; | |
2932 | ||
2933 | rc = mwl8k_rxq_init(hw, 0); | |
2934 | if (rc) | |
2935 | goto err_iounmap; | |
2936 | rxq_refill(hw, 0, INT_MAX); | |
2937 | ||
618952a7 LB |
2938 | mutex_init(&priv->fw_mutex); |
2939 | priv->fw_mutex_owner = NULL; | |
2940 | priv->fw_mutex_depth = 0; | |
618952a7 LB |
2941 | priv->hostcmd_wait = NULL; |
2942 | ||
a66098da LB |
2943 | spin_lock_init(&priv->tx_lock); |
2944 | ||
88de754a LB |
2945 | priv->tx_wait = NULL; |
2946 | ||
a66098da LB |
2947 | for (i = 0; i < MWL8K_TX_QUEUES; i++) { |
2948 | rc = mwl8k_txq_init(hw, i); | |
2949 | if (rc) | |
2950 | goto err_free_queues; | |
2951 | } | |
2952 | ||
2953 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
c23b5a69 | 2954 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2955 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); |
2956 | iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); | |
2957 | ||
2958 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, | |
2959 | IRQF_SHARED, MWL8K_NAME, hw); | |
2960 | if (rc) { | |
2961 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 2962 | wiphy_name(hw->wiphy)); |
a66098da LB |
2963 | goto err_free_queues; |
2964 | } | |
2965 | ||
2966 | /* Reset firmware and hardware */ | |
2967 | mwl8k_hw_reset(priv); | |
2968 | ||
2969 | /* Ask userland hotplug daemon for the device firmware */ | |
2970 | rc = mwl8k_request_firmware(priv, (u32)id->driver_data); | |
2971 | if (rc) { | |
c2c357ce LB |
2972 | printk(KERN_ERR "%s: Firmware files not found\n", |
2973 | wiphy_name(hw->wiphy)); | |
a66098da LB |
2974 | goto err_free_irq; |
2975 | } | |
2976 | ||
2977 | /* Load firmware into hardware */ | |
c2c357ce | 2978 | rc = mwl8k_load_firmware(hw); |
a66098da | 2979 | if (rc) { |
c2c357ce LB |
2980 | printk(KERN_ERR "%s: Cannot start firmware\n", |
2981 | wiphy_name(hw->wiphy)); | |
a66098da LB |
2982 | goto err_stop_firmware; |
2983 | } | |
2984 | ||
2985 | /* Reclaim memory once firmware is successfully loaded */ | |
2986 | mwl8k_release_firmware(priv); | |
2987 | ||
2988 | /* | |
2989 | * Temporarily enable interrupts. Initial firmware host | |
2990 | * commands use interrupts and avoids polling. Disable | |
2991 | * interrupts when done. | |
2992 | */ | |
c23b5a69 | 2993 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2994 | |
2995 | /* Get config data, mac addrs etc */ | |
2996 | rc = mwl8k_cmd_get_hw_spec(hw); | |
2997 | if (rc) { | |
c2c357ce LB |
2998 | printk(KERN_ERR "%s: Cannot initialise firmware\n", |
2999 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3000 | goto err_stop_firmware; |
3001 | } | |
3002 | ||
3003 | /* Turn radio off */ | |
c46563b7 | 3004 | rc = mwl8k_cmd_802_11_radio_disable(hw); |
a66098da | 3005 | if (rc) { |
c2c357ce | 3006 | printk(KERN_ERR "%s: Cannot disable\n", wiphy_name(hw->wiphy)); |
a66098da LB |
3007 | goto err_stop_firmware; |
3008 | } | |
3009 | ||
3010 | /* Disable interrupts */ | |
a66098da | 3011 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3012 | free_irq(priv->pdev->irq, hw); |
3013 | ||
3014 | rc = ieee80211_register_hw(hw); | |
3015 | if (rc) { | |
c2c357ce LB |
3016 | printk(KERN_ERR "%s: Cannot register device\n", |
3017 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3018 | goto err_stop_firmware; |
3019 | } | |
3020 | ||
2aa7b01f LB |
3021 | printk(KERN_INFO "%s: 88w%u v%d, %pM, firmware version %u.%u.%u.%u\n", |
3022 | wiphy_name(hw->wiphy), priv->part_num, priv->hw_rev, | |
3023 | hw->wiphy->perm_addr, | |
3024 | (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff, | |
3025 | (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff); | |
a66098da LB |
3026 | |
3027 | return 0; | |
3028 | ||
3029 | err_stop_firmware: | |
3030 | mwl8k_hw_reset(priv); | |
3031 | mwl8k_release_firmware(priv); | |
3032 | ||
3033 | err_free_irq: | |
a66098da | 3034 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3035 | free_irq(priv->pdev->irq, hw); |
3036 | ||
3037 | err_free_queues: | |
3038 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3039 | mwl8k_txq_deinit(hw, i); | |
3040 | mwl8k_rxq_deinit(hw, 0); | |
3041 | ||
3042 | err_iounmap: | |
3043 | if (priv->cookie != NULL) | |
3044 | pci_free_consistent(priv->pdev, 4, | |
3045 | priv->cookie, priv->cookie_dma); | |
3046 | ||
3047 | if (priv->regs != NULL) | |
3048 | pci_iounmap(pdev, priv->regs); | |
3049 | ||
3050 | if (priv->config_wq != NULL) | |
3051 | destroy_workqueue(priv->config_wq); | |
3052 | ||
3053 | pci_set_drvdata(pdev, NULL); | |
3054 | ieee80211_free_hw(hw); | |
3055 | ||
3056 | err_free_reg: | |
3057 | pci_release_regions(pdev); | |
3058 | pci_disable_device(pdev); | |
3059 | ||
3060 | return rc; | |
3061 | } | |
3062 | ||
230f7af0 | 3063 | static void __devexit mwl8k_shutdown(struct pci_dev *pdev) |
a66098da LB |
3064 | { |
3065 | printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); | |
3066 | } | |
3067 | ||
230f7af0 | 3068 | static void __devexit mwl8k_remove(struct pci_dev *pdev) |
a66098da LB |
3069 | { |
3070 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
3071 | struct mwl8k_priv *priv; | |
3072 | int i; | |
3073 | ||
3074 | if (hw == NULL) | |
3075 | return; | |
3076 | priv = hw->priv; | |
3077 | ||
3078 | ieee80211_stop_queues(hw); | |
3079 | ||
60aa569f LB |
3080 | ieee80211_unregister_hw(hw); |
3081 | ||
a66098da LB |
3082 | /* Remove tx reclaim tasklet */ |
3083 | tasklet_kill(&priv->tx_reclaim_task); | |
3084 | ||
3085 | /* Stop config thread */ | |
3086 | destroy_workqueue(priv->config_wq); | |
3087 | ||
3088 | /* Stop hardware */ | |
3089 | mwl8k_hw_reset(priv); | |
3090 | ||
3091 | /* Return all skbs to mac80211 */ | |
3092 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3093 | mwl8k_txq_reclaim(hw, i, 1); | |
3094 | ||
a66098da LB |
3095 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
3096 | mwl8k_txq_deinit(hw, i); | |
3097 | ||
3098 | mwl8k_rxq_deinit(hw, 0); | |
3099 | ||
c2c357ce | 3100 | pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); |
a66098da LB |
3101 | |
3102 | pci_iounmap(pdev, priv->regs); | |
3103 | pci_set_drvdata(pdev, NULL); | |
3104 | ieee80211_free_hw(hw); | |
3105 | pci_release_regions(pdev); | |
3106 | pci_disable_device(pdev); | |
3107 | } | |
3108 | ||
3109 | static struct pci_driver mwl8k_driver = { | |
3110 | .name = MWL8K_NAME, | |
3111 | .id_table = mwl8k_table, | |
3112 | .probe = mwl8k_probe, | |
3113 | .remove = __devexit_p(mwl8k_remove), | |
3114 | .shutdown = __devexit_p(mwl8k_shutdown), | |
3115 | }; | |
3116 | ||
3117 | static int __init mwl8k_init(void) | |
3118 | { | |
3119 | return pci_register_driver(&mwl8k_driver); | |
3120 | } | |
3121 | ||
3122 | static void __exit mwl8k_exit(void) | |
3123 | { | |
3124 | pci_unregister_driver(&mwl8k_driver); | |
3125 | } | |
3126 | ||
3127 | module_init(mwl8k_init); | |
3128 | module_exit(mwl8k_exit); | |
c2c357ce LB |
3129 | |
3130 | MODULE_DESCRIPTION(MWL8K_DESC); | |
3131 | MODULE_VERSION(MWL8K_VERSION); | |
3132 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>"); | |
3133 | MODULE_LICENSE("GPL"); |