Commit | Line | Data |
---|---|---|
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> | |
3d76e82c | 15 | #include <linux/sched.h> |
a66098da LB |
16 | #include <linux/spinlock.h> |
17 | #include <linux/list.h> | |
18 | #include <linux/pci.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/completion.h> | |
21 | #include <linux/etherdevice.h> | |
22 | #include <net/mac80211.h> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/firmware.h> | |
25 | #include <linux/workqueue.h> | |
26 | ||
27 | #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver" | |
28 | #define MWL8K_NAME KBUILD_MODNAME | |
a145d575 | 29 | #define MWL8K_VERSION "0.10" |
a66098da | 30 | |
a66098da LB |
31 | static DEFINE_PCI_DEVICE_TABLE(mwl8k_table) = { |
32 | { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = 8687, }, | |
33 | { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = 8687, }, | |
34 | { } | |
35 | }; | |
36 | MODULE_DEVICE_TABLE(pci, mwl8k_table); | |
37 | ||
a66098da LB |
38 | /* Register definitions */ |
39 | #define MWL8K_HIU_GEN_PTR 0x00000c10 | |
ce9e2e1b LB |
40 | #define MWL8K_MODE_STA 0x0000005a |
41 | #define MWL8K_MODE_AP 0x000000a5 | |
a66098da | 42 | #define MWL8K_HIU_INT_CODE 0x00000c14 |
ce9e2e1b LB |
43 | #define MWL8K_FWSTA_READY 0xf0f1f2f4 |
44 | #define MWL8K_FWAP_READY 0xf1f2f4a5 | |
45 | #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 | |
a66098da LB |
46 | #define MWL8K_HIU_SCRATCH 0x00000c40 |
47 | ||
48 | /* Host->device communications */ | |
49 | #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18 | |
50 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c | |
51 | #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 | |
52 | #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 | |
53 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 | |
ce9e2e1b LB |
54 | #define MWL8K_H2A_INT_DUMMY (1 << 20) |
55 | #define MWL8K_H2A_INT_RESET (1 << 15) | |
56 | #define MWL8K_H2A_INT_DOORBELL (1 << 1) | |
57 | #define MWL8K_H2A_INT_PPA_READY (1 << 0) | |
a66098da LB |
58 | |
59 | /* Device->host communications */ | |
60 | #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c | |
61 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30 | |
62 | #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 | |
63 | #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 | |
64 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c | |
ce9e2e1b LB |
65 | #define MWL8K_A2H_INT_DUMMY (1 << 20) |
66 | #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) | |
67 | #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) | |
68 | #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) | |
69 | #define MWL8K_A2H_INT_RADIO_ON (1 << 6) | |
70 | #define MWL8K_A2H_INT_RADIO_OFF (1 << 5) | |
71 | #define MWL8K_A2H_INT_MAC_EVENT (1 << 3) | |
72 | #define MWL8K_A2H_INT_OPC_DONE (1 << 2) | |
73 | #define MWL8K_A2H_INT_RX_READY (1 << 1) | |
74 | #define MWL8K_A2H_INT_TX_DONE (1 << 0) | |
a66098da LB |
75 | |
76 | #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ | |
77 | MWL8K_A2H_INT_CHNL_SWITCHED | \ | |
78 | MWL8K_A2H_INT_QUEUE_EMPTY | \ | |
79 | MWL8K_A2H_INT_RADAR_DETECT | \ | |
80 | MWL8K_A2H_INT_RADIO_ON | \ | |
81 | MWL8K_A2H_INT_RADIO_OFF | \ | |
82 | MWL8K_A2H_INT_MAC_EVENT | \ | |
83 | MWL8K_A2H_INT_OPC_DONE | \ | |
84 | MWL8K_A2H_INT_RX_READY | \ | |
85 | MWL8K_A2H_INT_TX_DONE) | |
86 | ||
87 | /* WME stream classes */ | |
88 | #define WME_AC_BE 0 /* best effort */ | |
89 | #define WME_AC_BK 1 /* background */ | |
90 | #define WME_AC_VI 2 /* video */ | |
91 | #define WME_AC_VO 3 /* voice */ | |
92 | ||
93 | #define MWL8K_RX_QUEUES 1 | |
94 | #define MWL8K_TX_QUEUES 4 | |
95 | ||
96 | struct mwl8k_rx_queue { | |
97 | int rx_desc_count; | |
98 | ||
99 | /* hw receives here */ | |
100 | int rx_head; | |
101 | ||
102 | /* refill descs here */ | |
103 | int rx_tail; | |
104 | ||
105 | struct mwl8k_rx_desc *rx_desc_area; | |
106 | dma_addr_t rx_desc_dma; | |
107 | struct sk_buff **rx_skb; | |
108 | }; | |
109 | ||
a66098da LB |
110 | struct mwl8k_tx_queue { |
111 | /* hw transmits here */ | |
112 | int tx_head; | |
113 | ||
114 | /* sw appends here */ | |
115 | int tx_tail; | |
116 | ||
117 | struct ieee80211_tx_queue_stats tx_stats; | |
118 | struct mwl8k_tx_desc *tx_desc_area; | |
119 | dma_addr_t tx_desc_dma; | |
76266b2a | 120 | struct sk_buff **tx_skb; |
a66098da LB |
121 | }; |
122 | ||
123 | /* Pointers to the firmware data and meta information about it. */ | |
124 | struct mwl8k_firmware { | |
125 | /* Microcode */ | |
126 | struct firmware *ucode; | |
127 | ||
128 | /* Boot helper code */ | |
129 | struct firmware *helper; | |
130 | }; | |
131 | ||
132 | struct mwl8k_priv { | |
133 | void __iomem *regs; | |
134 | struct ieee80211_hw *hw; | |
135 | ||
136 | struct pci_dev *pdev; | |
a66098da LB |
137 | |
138 | /* firmware files and meta data */ | |
139 | struct mwl8k_firmware fw; | |
140 | u32 part_num; | |
141 | ||
618952a7 LB |
142 | /* firmware access */ |
143 | struct mutex fw_mutex; | |
144 | struct task_struct *fw_mutex_owner; | |
145 | int fw_mutex_depth; | |
618952a7 LB |
146 | struct completion *hostcmd_wait; |
147 | ||
a66098da LB |
148 | /* lock held over TX and TX reap */ |
149 | spinlock_t tx_lock; | |
a66098da | 150 | |
88de754a LB |
151 | /* TX quiesce completion, protected by fw_mutex and tx_lock */ |
152 | struct completion *tx_wait; | |
153 | ||
a66098da | 154 | struct ieee80211_vif *vif; |
a66098da LB |
155 | |
156 | struct ieee80211_channel *current_channel; | |
157 | ||
158 | /* power management status cookie from firmware */ | |
159 | u32 *cookie; | |
160 | dma_addr_t cookie_dma; | |
161 | ||
162 | u16 num_mcaddrs; | |
a66098da | 163 | u8 hw_rev; |
2aa7b01f | 164 | u32 fw_rev; |
a66098da LB |
165 | |
166 | /* | |
167 | * Running count of TX packets in flight, to avoid | |
168 | * iterating over the transmit rings each time. | |
169 | */ | |
170 | int pending_tx_pkts; | |
171 | ||
172 | struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; | |
173 | struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; | |
174 | ||
175 | /* PHY parameters */ | |
176 | struct ieee80211_supported_band band; | |
177 | struct ieee80211_channel channels[14]; | |
178 | struct ieee80211_rate rates[12]; | |
179 | ||
c46563b7 | 180 | bool radio_on; |
68ce3884 | 181 | bool radio_short_preamble; |
0439b1f5 | 182 | bool wmm_enabled; |
a66098da | 183 | |
a66098da LB |
184 | /* XXX need to convert this to handle multiple interfaces */ |
185 | bool capture_beacon; | |
d89173f2 | 186 | u8 capture_bssid[ETH_ALEN]; |
a66098da LB |
187 | struct sk_buff *beacon_skb; |
188 | ||
189 | /* | |
190 | * This FJ worker has to be global as it is scheduled from the | |
191 | * RX handler. At this point we don't know which interface it | |
192 | * belongs to until the list of bssids waiting to complete join | |
193 | * is checked. | |
194 | */ | |
195 | struct work_struct finalize_join_worker; | |
196 | ||
197 | /* Tasklet to reclaim TX descriptors and buffers after tx */ | |
198 | struct tasklet_struct tx_reclaim_task; | |
a66098da LB |
199 | }; |
200 | ||
201 | /* Per interface specific private data */ | |
202 | struct mwl8k_vif { | |
a66098da LB |
203 | /* backpointer to parent config block */ |
204 | struct mwl8k_priv *priv; | |
205 | ||
206 | /* BSS config of AP or IBSS from mac80211*/ | |
207 | struct ieee80211_bss_conf bss_info; | |
208 | ||
209 | /* BSSID of AP or IBSS */ | |
d89173f2 LB |
210 | u8 bssid[ETH_ALEN]; |
211 | u8 mac_addr[ETH_ALEN]; | |
a66098da LB |
212 | |
213 | /* | |
214 | * Subset of supported legacy rates. | |
215 | * Intersection of AP and STA supported rates. | |
216 | */ | |
217 | struct ieee80211_rate legacy_rates[12]; | |
218 | ||
219 | /* number of supported legacy rates */ | |
220 | u8 legacy_nrates; | |
221 | ||
a66098da LB |
222 | /* Index into station database.Returned by update_sta_db call */ |
223 | u8 peer_id; | |
224 | ||
225 | /* Non AMPDU sequence number assigned by driver */ | |
226 | u16 seqno; | |
a66098da LB |
227 | }; |
228 | ||
a94cc97e | 229 | #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) |
a66098da LB |
230 | |
231 | static const struct ieee80211_channel mwl8k_channels[] = { | |
232 | { .center_freq = 2412, .hw_value = 1, }, | |
233 | { .center_freq = 2417, .hw_value = 2, }, | |
234 | { .center_freq = 2422, .hw_value = 3, }, | |
235 | { .center_freq = 2427, .hw_value = 4, }, | |
236 | { .center_freq = 2432, .hw_value = 5, }, | |
237 | { .center_freq = 2437, .hw_value = 6, }, | |
238 | { .center_freq = 2442, .hw_value = 7, }, | |
239 | { .center_freq = 2447, .hw_value = 8, }, | |
240 | { .center_freq = 2452, .hw_value = 9, }, | |
241 | { .center_freq = 2457, .hw_value = 10, }, | |
242 | { .center_freq = 2462, .hw_value = 11, }, | |
243 | }; | |
244 | ||
245 | static const struct ieee80211_rate mwl8k_rates[] = { | |
246 | { .bitrate = 10, .hw_value = 2, }, | |
247 | { .bitrate = 20, .hw_value = 4, }, | |
248 | { .bitrate = 55, .hw_value = 11, }, | |
249 | { .bitrate = 60, .hw_value = 12, }, | |
250 | { .bitrate = 90, .hw_value = 18, }, | |
251 | { .bitrate = 110, .hw_value = 22, }, | |
252 | { .bitrate = 120, .hw_value = 24, }, | |
253 | { .bitrate = 180, .hw_value = 36, }, | |
254 | { .bitrate = 240, .hw_value = 48, }, | |
255 | { .bitrate = 360, .hw_value = 72, }, | |
256 | { .bitrate = 480, .hw_value = 96, }, | |
257 | { .bitrate = 540, .hw_value = 108, }, | |
258 | }; | |
259 | ||
a66098da LB |
260 | /* Set or get info from Firmware */ |
261 | #define MWL8K_CMD_SET 0x0001 | |
262 | #define MWL8K_CMD_GET 0x0000 | |
263 | ||
264 | /* Firmware command codes */ | |
265 | #define MWL8K_CMD_CODE_DNLD 0x0001 | |
266 | #define MWL8K_CMD_GET_HW_SPEC 0x0003 | |
267 | #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 | |
268 | #define MWL8K_CMD_GET_STAT 0x0014 | |
ff45fc60 LB |
269 | #define MWL8K_CMD_RADIO_CONTROL 0x001c |
270 | #define MWL8K_CMD_RF_TX_POWER 0x001e | |
a66098da LB |
271 | #define MWL8K_CMD_SET_PRE_SCAN 0x0107 |
272 | #define MWL8K_CMD_SET_POST_SCAN 0x0108 | |
ff45fc60 LB |
273 | #define MWL8K_CMD_SET_RF_CHANNEL 0x010a |
274 | #define MWL8K_CMD_SET_AID 0x010d | |
275 | #define MWL8K_CMD_SET_RATE 0x0110 | |
276 | #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 | |
277 | #define MWL8K_CMD_RTS_THRESHOLD 0x0113 | |
a66098da | 278 | #define MWL8K_CMD_SET_SLOT 0x0114 |
ff45fc60 LB |
279 | #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 |
280 | #define MWL8K_CMD_SET_WMM_MODE 0x0123 | |
a66098da | 281 | #define MWL8K_CMD_MIMO_CONFIG 0x0125 |
ff45fc60 | 282 | #define MWL8K_CMD_USE_FIXED_RATE 0x0126 |
a66098da | 283 | #define MWL8K_CMD_ENABLE_SNIFFER 0x0150 |
32060e1b | 284 | #define MWL8K_CMD_SET_MAC_ADDR 0x0202 |
a66098da | 285 | #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 |
ff45fc60 | 286 | #define MWL8K_CMD_UPDATE_STADB 0x1123 |
a66098da LB |
287 | |
288 | static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) | |
289 | { | |
290 | #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ | |
291 | snprintf(buf, bufsize, "%s", #x);\ | |
292 | return buf;\ | |
293 | } while (0) | |
ce9e2e1b | 294 | switch (cmd & ~0x8000) { |
a66098da LB |
295 | MWL8K_CMDNAME(CODE_DNLD); |
296 | MWL8K_CMDNAME(GET_HW_SPEC); | |
297 | MWL8K_CMDNAME(MAC_MULTICAST_ADR); | |
298 | MWL8K_CMDNAME(GET_STAT); | |
299 | MWL8K_CMDNAME(RADIO_CONTROL); | |
300 | MWL8K_CMDNAME(RF_TX_POWER); | |
301 | MWL8K_CMDNAME(SET_PRE_SCAN); | |
302 | MWL8K_CMDNAME(SET_POST_SCAN); | |
303 | MWL8K_CMDNAME(SET_RF_CHANNEL); | |
ff45fc60 LB |
304 | MWL8K_CMDNAME(SET_AID); |
305 | MWL8K_CMDNAME(SET_RATE); | |
306 | MWL8K_CMDNAME(SET_FINALIZE_JOIN); | |
307 | MWL8K_CMDNAME(RTS_THRESHOLD); | |
a66098da | 308 | MWL8K_CMDNAME(SET_SLOT); |
ff45fc60 LB |
309 | MWL8K_CMDNAME(SET_EDCA_PARAMS); |
310 | MWL8K_CMDNAME(SET_WMM_MODE); | |
a66098da | 311 | MWL8K_CMDNAME(MIMO_CONFIG); |
ff45fc60 | 312 | MWL8K_CMDNAME(USE_FIXED_RATE); |
a66098da | 313 | MWL8K_CMDNAME(ENABLE_SNIFFER); |
32060e1b | 314 | MWL8K_CMDNAME(SET_MAC_ADDR); |
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 | ||
3d76e82c | 432 | cond_resched(); |
a66098da LB |
433 | udelay(1); |
434 | } while (--loops); | |
435 | ||
436 | pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); | |
437 | ||
d4b70570 | 438 | return loops ? 0 : -ETIMEDOUT; |
a66098da LB |
439 | } |
440 | ||
441 | static int mwl8k_load_fw_image(struct mwl8k_priv *priv, | |
442 | const u8 *data, size_t length) | |
443 | { | |
444 | struct mwl8k_cmd_pkt *cmd; | |
445 | int done; | |
446 | int rc = 0; | |
447 | ||
448 | cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); | |
449 | if (cmd == NULL) | |
450 | return -ENOMEM; | |
451 | ||
452 | cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); | |
453 | cmd->seq_num = 0; | |
454 | cmd->result = 0; | |
455 | ||
456 | done = 0; | |
457 | while (length) { | |
458 | int block_size = length > 256 ? 256 : length; | |
459 | ||
460 | memcpy(cmd->payload, data + done, block_size); | |
461 | cmd->length = cpu_to_le16(block_size); | |
462 | ||
463 | rc = mwl8k_send_fw_load_cmd(priv, cmd, | |
464 | sizeof(*cmd) + block_size); | |
465 | if (rc) | |
466 | break; | |
467 | ||
468 | done += block_size; | |
469 | length -= block_size; | |
470 | } | |
471 | ||
472 | if (!rc) { | |
473 | cmd->length = 0; | |
474 | rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); | |
475 | } | |
476 | ||
477 | kfree(cmd); | |
478 | ||
479 | return rc; | |
480 | } | |
481 | ||
482 | static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, | |
483 | const u8 *data, size_t length) | |
484 | { | |
485 | unsigned char *buffer; | |
486 | int may_continue, rc = 0; | |
487 | u32 done, prev_block_size; | |
488 | ||
489 | buffer = kmalloc(1024, GFP_KERNEL); | |
490 | if (buffer == NULL) | |
491 | return -ENOMEM; | |
492 | ||
493 | done = 0; | |
494 | prev_block_size = 0; | |
495 | may_continue = 1000; | |
496 | while (may_continue > 0) { | |
497 | u32 block_size; | |
498 | ||
499 | block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); | |
500 | if (block_size & 1) { | |
501 | block_size &= ~1; | |
502 | may_continue--; | |
503 | } else { | |
504 | done += prev_block_size; | |
505 | length -= prev_block_size; | |
506 | } | |
507 | ||
508 | if (block_size > 1024 || block_size > length) { | |
509 | rc = -EOVERFLOW; | |
510 | break; | |
511 | } | |
512 | ||
513 | if (length == 0) { | |
514 | rc = 0; | |
515 | break; | |
516 | } | |
517 | ||
518 | if (block_size == 0) { | |
519 | rc = -EPROTO; | |
520 | may_continue--; | |
521 | udelay(1); | |
522 | continue; | |
523 | } | |
524 | ||
525 | prev_block_size = block_size; | |
526 | memcpy(buffer, data + done, block_size); | |
527 | ||
528 | rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); | |
529 | if (rc) | |
530 | break; | |
531 | } | |
532 | ||
533 | if (!rc && length != 0) | |
534 | rc = -EREMOTEIO; | |
535 | ||
536 | kfree(buffer); | |
537 | ||
538 | return rc; | |
539 | } | |
540 | ||
c2c357ce | 541 | static int mwl8k_load_firmware(struct ieee80211_hw *hw) |
a66098da | 542 | { |
c2c357ce LB |
543 | struct mwl8k_priv *priv = hw->priv; |
544 | struct firmware *fw = priv->fw.ucode; | |
545 | int rc; | |
546 | int loops; | |
547 | ||
548 | if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { | |
549 | struct firmware *helper = priv->fw.helper; | |
a66098da | 550 | |
c2c357ce LB |
551 | if (helper == NULL) { |
552 | printk(KERN_ERR "%s: helper image needed but none " | |
553 | "given\n", pci_name(priv->pdev)); | |
554 | return -EINVAL; | |
555 | } | |
a66098da | 556 | |
c2c357ce | 557 | rc = mwl8k_load_fw_image(priv, helper->data, helper->size); |
a66098da LB |
558 | if (rc) { |
559 | printk(KERN_ERR "%s: unable to load firmware " | |
c2c357ce | 560 | "helper image\n", pci_name(priv->pdev)); |
a66098da LB |
561 | return rc; |
562 | } | |
563 | msleep(1); | |
564 | ||
c2c357ce | 565 | rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); |
a66098da | 566 | } else { |
c2c357ce | 567 | rc = mwl8k_load_fw_image(priv, fw->data, fw->size); |
a66098da LB |
568 | } |
569 | ||
570 | if (rc) { | |
c2c357ce LB |
571 | printk(KERN_ERR "%s: unable to load firmware image\n", |
572 | pci_name(priv->pdev)); | |
a66098da LB |
573 | return rc; |
574 | } | |
575 | ||
576 | iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); | |
577 | msleep(1); | |
578 | ||
579 | loops = 200000; | |
580 | do { | |
581 | if (ioread32(priv->regs + MWL8K_HIU_INT_CODE) | |
582 | == MWL8K_FWSTA_READY) | |
583 | break; | |
584 | udelay(1); | |
585 | } while (--loops); | |
586 | ||
587 | return loops ? 0 : -ETIMEDOUT; | |
588 | } | |
589 | ||
590 | ||
591 | /* | |
592 | * Defines shared between transmission and reception. | |
593 | */ | |
594 | /* HT control fields for firmware */ | |
595 | struct ewc_ht_info { | |
596 | __le16 control1; | |
597 | __le16 control2; | |
598 | __le16 control3; | |
599 | } __attribute__((packed)); | |
600 | ||
601 | /* Firmware Station database operations */ | |
602 | #define MWL8K_STA_DB_ADD_ENTRY 0 | |
603 | #define MWL8K_STA_DB_MODIFY_ENTRY 1 | |
604 | #define MWL8K_STA_DB_DEL_ENTRY 2 | |
605 | #define MWL8K_STA_DB_FLUSH 3 | |
606 | ||
607 | /* Peer Entry flags - used to define the type of the peer node */ | |
608 | #define MWL8K_PEER_TYPE_ACCESSPOINT 2 | |
a66098da LB |
609 | |
610 | #define MWL8K_IEEE_LEGACY_DATA_RATES 12 | |
611 | #define MWL8K_MCS_BITMAP_SIZE 16 | |
a66098da LB |
612 | |
613 | struct peer_capability_info { | |
614 | /* Peer type - AP vs. STA. */ | |
615 | __u8 peer_type; | |
616 | ||
617 | /* Basic 802.11 capabilities from assoc resp. */ | |
618 | __le16 basic_caps; | |
619 | ||
620 | /* Set if peer supports 802.11n high throughput (HT). */ | |
621 | __u8 ht_support; | |
622 | ||
623 | /* Valid if HT is supported. */ | |
624 | __le16 ht_caps; | |
625 | __u8 extended_ht_caps; | |
626 | struct ewc_ht_info ewc_info; | |
627 | ||
628 | /* Legacy rate table. Intersection of our rates and peer rates. */ | |
629 | __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
630 | ||
631 | /* HT rate table. Intersection of our rates and peer rates. */ | |
632 | __u8 ht_rates[MWL8K_MCS_BITMAP_SIZE]; | |
c23b5a69 | 633 | __u8 pad[16]; |
a66098da LB |
634 | |
635 | /* If set, interoperability mode, no proprietary extensions. */ | |
636 | __u8 interop; | |
637 | __u8 pad2; | |
638 | __u8 station_id; | |
639 | __le16 amsdu_enabled; | |
640 | } __attribute__((packed)); | |
641 | ||
642 | /* Inline functions to manipulate QoS field in data descriptor. */ | |
a66098da LB |
643 | static inline u16 mwl8k_qos_setbit_eosp(u16 qos) |
644 | { | |
645 | u16 val_mask = 1 << 4; | |
646 | ||
647 | /* End of Service Period Bit 4 */ | |
648 | return qos | val_mask; | |
649 | } | |
650 | ||
651 | static inline u16 mwl8k_qos_setbit_ack(u16 qos, u8 ack_policy) | |
652 | { | |
653 | u16 val_mask = 0x3; | |
654 | u8 shift = 5; | |
655 | u16 qos_mask = ~(val_mask << shift); | |
656 | ||
657 | /* Ack Policy Bit 5-6 */ | |
658 | return (qos & qos_mask) | ((ack_policy & val_mask) << shift); | |
659 | } | |
660 | ||
661 | static inline u16 mwl8k_qos_setbit_amsdu(u16 qos) | |
662 | { | |
663 | u16 val_mask = 1 << 7; | |
664 | ||
665 | /* AMSDU present Bit 7 */ | |
666 | return qos | val_mask; | |
667 | } | |
668 | ||
669 | static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len) | |
670 | { | |
671 | u16 val_mask = 0xff; | |
672 | u8 shift = 8; | |
673 | u16 qos_mask = ~(val_mask << shift); | |
674 | ||
675 | /* Queue Length Bits 8-15 */ | |
676 | return (qos & qos_mask) | ((len & val_mask) << shift); | |
677 | } | |
678 | ||
679 | /* DMA header used by firmware and hardware. */ | |
680 | struct mwl8k_dma_data { | |
681 | __le16 fwlen; | |
682 | struct ieee80211_hdr wh; | |
683 | } __attribute__((packed)); | |
684 | ||
685 | /* Routines to add/remove DMA header from skb. */ | |
76266b2a | 686 | static inline void mwl8k_remove_dma_header(struct sk_buff *skb) |
a66098da | 687 | { |
76266b2a | 688 | struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)skb->data; |
a66098da | 689 | void *dst, *src = &tr->wh; |
76266b2a | 690 | int hdrlen = ieee80211_hdrlen(tr->wh.frame_control); |
a66098da LB |
691 | u16 space = sizeof(struct mwl8k_dma_data) - hdrlen; |
692 | ||
693 | dst = (void *)tr + space; | |
694 | if (dst != src) { | |
695 | memmove(dst, src, hdrlen); | |
696 | skb_pull(skb, space); | |
697 | } | |
a66098da LB |
698 | } |
699 | ||
76266b2a | 700 | static inline void mwl8k_add_dma_header(struct sk_buff *skb) |
a66098da LB |
701 | { |
702 | struct ieee80211_hdr *wh; | |
703 | u32 hdrlen, pktlen; | |
704 | struct mwl8k_dma_data *tr; | |
705 | ||
706 | wh = (struct ieee80211_hdr *)skb->data; | |
707 | hdrlen = ieee80211_hdrlen(wh->frame_control); | |
708 | pktlen = skb->len; | |
709 | ||
710 | /* | |
711 | * Copy up/down the 802.11 header; the firmware requires | |
712 | * we present a 2-byte payload length followed by a | |
713 | * 4-address header (w/o QoS), followed (optionally) by | |
714 | * any WEP/ExtIV header (but only filled in for CCMP). | |
715 | */ | |
716 | if (hdrlen != sizeof(struct mwl8k_dma_data)) | |
717 | skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen); | |
718 | ||
719 | tr = (struct mwl8k_dma_data *)skb->data; | |
720 | if (wh != &tr->wh) | |
721 | memmove(&tr->wh, wh, hdrlen); | |
722 | ||
723 | /* Clear addr4 */ | |
d89173f2 | 724 | memset(tr->wh.addr4, 0, ETH_ALEN); |
a66098da LB |
725 | |
726 | /* | |
727 | * Firmware length is the length of the fully formed "802.11 | |
728 | * payload". That is, everything except for the 802.11 header. | |
729 | * This includes all crypto material including the MIC. | |
730 | */ | |
731 | tr->fwlen = cpu_to_le16(pktlen - hdrlen); | |
a66098da LB |
732 | } |
733 | ||
734 | ||
735 | /* | |
736 | * Packet reception. | |
737 | */ | |
a66098da | 738 | #define MWL8K_RX_CTRL_OWNED_BY_HOST 0x02 |
a66098da LB |
739 | |
740 | struct mwl8k_rx_desc { | |
741 | __le16 pkt_len; | |
742 | __u8 link_quality; | |
743 | __u8 noise_level; | |
744 | __le32 pkt_phys_addr; | |
745 | __le32 next_rx_desc_phys_addr; | |
746 | __le16 qos_control; | |
747 | __le16 rate_info; | |
748 | __le32 pad0[4]; | |
749 | __u8 rssi; | |
750 | __u8 channel; | |
751 | __le16 pad1; | |
752 | __u8 rx_ctrl; | |
753 | __u8 rx_status; | |
754 | __u8 pad2[2]; | |
755 | } __attribute__((packed)); | |
756 | ||
757 | #define MWL8K_RX_DESCS 256 | |
758 | #define MWL8K_RX_MAXSZ 3800 | |
759 | ||
760 | static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) | |
761 | { | |
762 | struct mwl8k_priv *priv = hw->priv; | |
763 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
764 | int size; | |
765 | int i; | |
766 | ||
767 | rxq->rx_desc_count = 0; | |
768 | rxq->rx_head = 0; | |
769 | rxq->rx_tail = 0; | |
770 | ||
771 | size = MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc); | |
772 | ||
773 | rxq->rx_desc_area = | |
774 | pci_alloc_consistent(priv->pdev, size, &rxq->rx_desc_dma); | |
775 | if (rxq->rx_desc_area == NULL) { | |
776 | printk(KERN_ERR "%s: failed to alloc RX descriptors\n", | |
c2c357ce | 777 | wiphy_name(hw->wiphy)); |
a66098da LB |
778 | return -ENOMEM; |
779 | } | |
780 | memset(rxq->rx_desc_area, 0, size); | |
781 | ||
782 | rxq->rx_skb = kmalloc(MWL8K_RX_DESCS * | |
783 | sizeof(*rxq->rx_skb), GFP_KERNEL); | |
784 | if (rxq->rx_skb == NULL) { | |
785 | printk(KERN_ERR "%s: failed to alloc RX skbuff list\n", | |
c2c357ce | 786 | wiphy_name(hw->wiphy)); |
a66098da LB |
787 | pci_free_consistent(priv->pdev, size, |
788 | rxq->rx_desc_area, rxq->rx_desc_dma); | |
789 | return -ENOMEM; | |
790 | } | |
791 | memset(rxq->rx_skb, 0, MWL8K_RX_DESCS * sizeof(*rxq->rx_skb)); | |
792 | ||
793 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
794 | struct mwl8k_rx_desc *rx_desc; | |
795 | int nexti; | |
796 | ||
797 | rx_desc = rxq->rx_desc_area + i; | |
798 | nexti = (i + 1) % MWL8K_RX_DESCS; | |
799 | ||
800 | rx_desc->next_rx_desc_phys_addr = | |
801 | cpu_to_le32(rxq->rx_desc_dma | |
802 | + nexti * sizeof(*rx_desc)); | |
c491bf12 | 803 | rx_desc->rx_ctrl = MWL8K_RX_CTRL_OWNED_BY_HOST; |
a66098da LB |
804 | } |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
809 | static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) | |
810 | { | |
811 | struct mwl8k_priv *priv = hw->priv; | |
812 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
813 | int refilled; | |
814 | ||
815 | refilled = 0; | |
816 | while (rxq->rx_desc_count < MWL8K_RX_DESCS && limit--) { | |
817 | struct sk_buff *skb; | |
818 | int rx; | |
819 | ||
820 | skb = dev_alloc_skb(MWL8K_RX_MAXSZ); | |
821 | if (skb == NULL) | |
822 | break; | |
823 | ||
824 | rxq->rx_desc_count++; | |
825 | ||
826 | rx = rxq->rx_tail; | |
827 | rxq->rx_tail = (rx + 1) % MWL8K_RX_DESCS; | |
828 | ||
829 | rxq->rx_desc_area[rx].pkt_phys_addr = | |
830 | cpu_to_le32(pci_map_single(priv->pdev, skb->data, | |
831 | MWL8K_RX_MAXSZ, DMA_FROM_DEVICE)); | |
832 | ||
833 | rxq->rx_desc_area[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ); | |
834 | rxq->rx_skb[rx] = skb; | |
835 | wmb(); | |
836 | rxq->rx_desc_area[rx].rx_ctrl = 0; | |
837 | ||
838 | refilled++; | |
839 | } | |
840 | ||
841 | return refilled; | |
842 | } | |
843 | ||
844 | /* Must be called only when the card's reception is completely halted */ | |
845 | static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) | |
846 | { | |
847 | struct mwl8k_priv *priv = hw->priv; | |
848 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
849 | int i; | |
850 | ||
851 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
852 | if (rxq->rx_skb[i] != NULL) { | |
853 | unsigned long addr; | |
854 | ||
855 | addr = le32_to_cpu(rxq->rx_desc_area[i].pkt_phys_addr); | |
856 | pci_unmap_single(priv->pdev, addr, MWL8K_RX_MAXSZ, | |
857 | PCI_DMA_FROMDEVICE); | |
858 | kfree_skb(rxq->rx_skb[i]); | |
859 | rxq->rx_skb[i] = NULL; | |
860 | } | |
861 | } | |
862 | ||
863 | kfree(rxq->rx_skb); | |
864 | rxq->rx_skb = NULL; | |
865 | ||
866 | pci_free_consistent(priv->pdev, | |
867 | MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc), | |
868 | rxq->rx_desc_area, rxq->rx_desc_dma); | |
869 | rxq->rx_desc_area = NULL; | |
870 | } | |
871 | ||
872 | ||
873 | /* | |
874 | * Scan a list of BSSIDs to process for finalize join. | |
875 | * Allows for extension to process multiple BSSIDs. | |
876 | */ | |
877 | static inline int | |
878 | mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) | |
879 | { | |
880 | return priv->capture_beacon && | |
881 | ieee80211_is_beacon(wh->frame_control) && | |
882 | !compare_ether_addr(wh->addr3, priv->capture_bssid); | |
883 | } | |
884 | ||
3779752d LB |
885 | static inline void mwl8k_save_beacon(struct ieee80211_hw *hw, |
886 | struct sk_buff *skb) | |
a66098da | 887 | { |
3779752d LB |
888 | struct mwl8k_priv *priv = hw->priv; |
889 | ||
a66098da | 890 | priv->capture_beacon = false; |
d89173f2 | 891 | memset(priv->capture_bssid, 0, ETH_ALEN); |
a66098da LB |
892 | |
893 | /* | |
894 | * Use GFP_ATOMIC as rxq_process is called from | |
895 | * the primary interrupt handler, memory allocation call | |
896 | * must not sleep. | |
897 | */ | |
898 | priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); | |
899 | if (priv->beacon_skb != NULL) | |
3779752d | 900 | ieee80211_queue_work(hw, &priv->finalize_join_worker); |
a66098da LB |
901 | } |
902 | ||
903 | static int rxq_process(struct ieee80211_hw *hw, int index, int limit) | |
904 | { | |
905 | struct mwl8k_priv *priv = hw->priv; | |
906 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
907 | int processed; | |
908 | ||
909 | processed = 0; | |
910 | while (rxq->rx_desc_count && limit--) { | |
911 | struct mwl8k_rx_desc *rx_desc; | |
912 | struct sk_buff *skb; | |
913 | struct ieee80211_rx_status status; | |
914 | unsigned long addr; | |
915 | struct ieee80211_hdr *wh; | |
916 | ||
917 | rx_desc = rxq->rx_desc_area + rxq->rx_head; | |
918 | if (!(rx_desc->rx_ctrl & MWL8K_RX_CTRL_OWNED_BY_HOST)) | |
919 | break; | |
920 | rmb(); | |
921 | ||
922 | skb = rxq->rx_skb[rxq->rx_head]; | |
d25f9f13 LB |
923 | if (skb == NULL) |
924 | break; | |
a66098da LB |
925 | rxq->rx_skb[rxq->rx_head] = NULL; |
926 | ||
927 | rxq->rx_head = (rxq->rx_head + 1) % MWL8K_RX_DESCS; | |
928 | rxq->rx_desc_count--; | |
929 | ||
930 | addr = le32_to_cpu(rx_desc->pkt_phys_addr); | |
931 | pci_unmap_single(priv->pdev, addr, | |
932 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
933 | ||
934 | skb_put(skb, le16_to_cpu(rx_desc->pkt_len)); | |
76266b2a | 935 | mwl8k_remove_dma_header(skb); |
a66098da LB |
936 | |
937 | wh = (struct ieee80211_hdr *)skb->data; | |
938 | ||
939 | /* | |
c2c357ce LB |
940 | * Check for a pending join operation. Save a |
941 | * copy of the beacon and schedule a tasklet to | |
942 | * send a FINALIZE_JOIN command to the firmware. | |
a66098da LB |
943 | */ |
944 | if (mwl8k_capture_bssid(priv, wh)) | |
3779752d | 945 | mwl8k_save_beacon(hw, skb); |
a66098da LB |
946 | |
947 | memset(&status, 0, sizeof(status)); | |
948 | status.mactime = 0; | |
949 | status.signal = -rx_desc->rssi; | |
950 | status.noise = -rx_desc->noise_level; | |
951 | status.qual = rx_desc->link_quality; | |
952 | status.antenna = 1; | |
953 | status.rate_idx = 1; | |
954 | status.flag = 0; | |
955 | status.band = IEEE80211_BAND_2GHZ; | |
956 | status.freq = ieee80211_channel_to_frequency(rx_desc->channel); | |
f1d58c25 JB |
957 | memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); |
958 | ieee80211_rx_irqsafe(hw, skb); | |
a66098da LB |
959 | |
960 | processed++; | |
961 | } | |
962 | ||
963 | return processed; | |
964 | } | |
965 | ||
966 | ||
967 | /* | |
968 | * Packet transmission. | |
969 | */ | |
970 | ||
971 | /* Transmit queue assignment. */ | |
972 | enum { | |
973 | MWL8K_WME_AC_BK = 0, /* background access */ | |
974 | MWL8K_WME_AC_BE = 1, /* best effort access */ | |
975 | MWL8K_WME_AC_VI = 2, /* video access */ | |
976 | MWL8K_WME_AC_VO = 3, /* voice access */ | |
977 | }; | |
978 | ||
979 | /* Transmit packet ACK policy */ | |
980 | #define MWL8K_TXD_ACK_POLICY_NORMAL 0 | |
a66098da LB |
981 | #define MWL8K_TXD_ACK_POLICY_BLOCKACK 3 |
982 | ||
983 | #define GET_TXQ(_ac) (\ | |
984 | ((_ac) == WME_AC_VO) ? MWL8K_WME_AC_VO : \ | |
985 | ((_ac) == WME_AC_VI) ? MWL8K_WME_AC_VI : \ | |
986 | ((_ac) == WME_AC_BK) ? MWL8K_WME_AC_BK : \ | |
987 | MWL8K_WME_AC_BE) | |
988 | ||
a66098da LB |
989 | #define MWL8K_TXD_STATUS_OK 0x00000001 |
990 | #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 | |
991 | #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 | |
992 | #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 | |
a66098da | 993 | #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 |
a66098da LB |
994 | |
995 | struct mwl8k_tx_desc { | |
996 | __le32 status; | |
997 | __u8 data_rate; | |
998 | __u8 tx_priority; | |
999 | __le16 qos_control; | |
1000 | __le32 pkt_phys_addr; | |
1001 | __le16 pkt_len; | |
d89173f2 | 1002 | __u8 dest_MAC_addr[ETH_ALEN]; |
a66098da LB |
1003 | __le32 next_tx_desc_phys_addr; |
1004 | __le32 reserved; | |
1005 | __le16 rate_info; | |
1006 | __u8 peer_id; | |
1007 | __u8 tx_frag_cnt; | |
1008 | } __attribute__((packed)); | |
1009 | ||
1010 | #define MWL8K_TX_DESCS 128 | |
1011 | ||
1012 | static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) | |
1013 | { | |
1014 | struct mwl8k_priv *priv = hw->priv; | |
1015 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1016 | int size; | |
1017 | int i; | |
1018 | ||
ce9e2e1b | 1019 | memset(&txq->tx_stats, 0, sizeof(struct ieee80211_tx_queue_stats)); |
a66098da LB |
1020 | txq->tx_stats.limit = MWL8K_TX_DESCS; |
1021 | txq->tx_head = 0; | |
1022 | txq->tx_tail = 0; | |
1023 | ||
1024 | size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); | |
1025 | ||
1026 | txq->tx_desc_area = | |
1027 | pci_alloc_consistent(priv->pdev, size, &txq->tx_desc_dma); | |
1028 | if (txq->tx_desc_area == NULL) { | |
1029 | printk(KERN_ERR "%s: failed to alloc TX descriptors\n", | |
c2c357ce | 1030 | wiphy_name(hw->wiphy)); |
a66098da LB |
1031 | return -ENOMEM; |
1032 | } | |
1033 | memset(txq->tx_desc_area, 0, size); | |
1034 | ||
1035 | txq->tx_skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->tx_skb), | |
1036 | GFP_KERNEL); | |
1037 | if (txq->tx_skb == NULL) { | |
1038 | printk(KERN_ERR "%s: failed to alloc TX skbuff list\n", | |
c2c357ce | 1039 | wiphy_name(hw->wiphy)); |
a66098da LB |
1040 | pci_free_consistent(priv->pdev, size, |
1041 | txq->tx_desc_area, txq->tx_desc_dma); | |
1042 | return -ENOMEM; | |
1043 | } | |
1044 | memset(txq->tx_skb, 0, MWL8K_TX_DESCS * sizeof(*txq->tx_skb)); | |
1045 | ||
1046 | for (i = 0; i < MWL8K_TX_DESCS; i++) { | |
1047 | struct mwl8k_tx_desc *tx_desc; | |
1048 | int nexti; | |
1049 | ||
1050 | tx_desc = txq->tx_desc_area + i; | |
1051 | nexti = (i + 1) % MWL8K_TX_DESCS; | |
1052 | ||
1053 | tx_desc->status = 0; | |
1054 | tx_desc->next_tx_desc_phys_addr = | |
1055 | cpu_to_le32(txq->tx_desc_dma + | |
1056 | nexti * sizeof(*tx_desc)); | |
1057 | } | |
1058 | ||
1059 | return 0; | |
1060 | } | |
1061 | ||
1062 | static inline void mwl8k_tx_start(struct mwl8k_priv *priv) | |
1063 | { | |
1064 | iowrite32(MWL8K_H2A_INT_PPA_READY, | |
1065 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1066 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1067 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1068 | ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
1069 | } | |
1070 | ||
a66098da LB |
1071 | struct mwl8k_txq_info { |
1072 | u32 fw_owned; | |
1073 | u32 drv_owned; | |
1074 | u32 unused; | |
1075 | u32 len; | |
1076 | u32 head; | |
1077 | u32 tail; | |
1078 | }; | |
1079 | ||
1080 | static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, | |
c3f967d3 | 1081 | struct mwl8k_txq_info *txinfo) |
a66098da LB |
1082 | { |
1083 | int count, desc, status; | |
1084 | struct mwl8k_tx_queue *txq; | |
1085 | struct mwl8k_tx_desc *tx_desc; | |
1086 | int ndescs = 0; | |
1087 | ||
c3f967d3 LB |
1088 | memset(txinfo, 0, MWL8K_TX_QUEUES * sizeof(struct mwl8k_txq_info)); |
1089 | ||
c3f967d3 | 1090 | for (count = 0; count < MWL8K_TX_QUEUES; count++) { |
a66098da LB |
1091 | txq = priv->txq + count; |
1092 | txinfo[count].len = txq->tx_stats.len; | |
1093 | txinfo[count].head = txq->tx_head; | |
1094 | txinfo[count].tail = txq->tx_tail; | |
1095 | for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { | |
1096 | tx_desc = txq->tx_desc_area + desc; | |
1097 | status = le32_to_cpu(tx_desc->status); | |
1098 | ||
1099 | if (status & MWL8K_TXD_STATUS_FW_OWNED) | |
1100 | txinfo[count].fw_owned++; | |
1101 | else | |
1102 | txinfo[count].drv_owned++; | |
1103 | ||
1104 | if (tx_desc->pkt_len == 0) | |
1105 | txinfo[count].unused++; | |
1106 | } | |
1107 | } | |
a66098da LB |
1108 | |
1109 | return ndescs; | |
1110 | } | |
1111 | ||
618952a7 | 1112 | /* |
88de754a | 1113 | * Must be called with priv->fw_mutex held and tx queues stopped. |
618952a7 | 1114 | */ |
950d5b01 | 1115 | static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) |
a66098da | 1116 | { |
a66098da | 1117 | struct mwl8k_priv *priv = hw->priv; |
88de754a | 1118 | DECLARE_COMPLETION_ONSTACK(tx_wait); |
ce9e2e1b LB |
1119 | u32 count; |
1120 | unsigned long timeout; | |
a66098da LB |
1121 | |
1122 | might_sleep(); | |
1123 | ||
a66098da | 1124 | spin_lock_bh(&priv->tx_lock); |
88de754a LB |
1125 | count = priv->pending_tx_pkts; |
1126 | if (count) | |
1127 | priv->tx_wait = &tx_wait; | |
a66098da LB |
1128 | spin_unlock_bh(&priv->tx_lock); |
1129 | ||
1130 | if (count) { | |
c3f967d3 | 1131 | struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES]; |
a66098da LB |
1132 | int index; |
1133 | int newcount; | |
1134 | ||
88de754a | 1135 | timeout = wait_for_completion_timeout(&tx_wait, |
618952a7 | 1136 | msecs_to_jiffies(5000)); |
a66098da LB |
1137 | if (timeout) |
1138 | return 0; | |
1139 | ||
1140 | spin_lock_bh(&priv->tx_lock); | |
1141 | priv->tx_wait = NULL; | |
88de754a LB |
1142 | newcount = priv->pending_tx_pkts; |
1143 | mwl8k_scan_tx_ring(priv, txinfo); | |
a66098da LB |
1144 | spin_unlock_bh(&priv->tx_lock); |
1145 | ||
618952a7 | 1146 | printk(KERN_ERR "%s(%u) TIMEDOUT:5000ms Pend:%u-->%u\n", |
950d5b01 | 1147 | __func__, __LINE__, count, newcount); |
a66098da | 1148 | |
c3f967d3 | 1149 | for (index = 0; index < MWL8K_TX_QUEUES; index++) |
c2c357ce LB |
1150 | printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u " |
1151 | "DRV:%u U:%u\n", | |
a66098da LB |
1152 | index, |
1153 | txinfo[index].len, | |
1154 | txinfo[index].head, | |
1155 | txinfo[index].tail, | |
1156 | txinfo[index].fw_owned, | |
1157 | txinfo[index].drv_owned, | |
1158 | txinfo[index].unused); | |
ce9e2e1b | 1159 | |
a66098da LB |
1160 | return -ETIMEDOUT; |
1161 | } | |
1162 | ||
1163 | return 0; | |
1164 | } | |
1165 | ||
c23b5a69 LB |
1166 | #define MWL8K_TXD_SUCCESS(status) \ |
1167 | ((status) & (MWL8K_TXD_STATUS_OK | \ | |
1168 | MWL8K_TXD_STATUS_OK_RETRY | \ | |
1169 | MWL8K_TXD_STATUS_OK_MORE_RETRY)) | |
a66098da LB |
1170 | |
1171 | static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) | |
1172 | { | |
1173 | struct mwl8k_priv *priv = hw->priv; | |
1174 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1175 | int wake = 0; | |
1176 | ||
1177 | while (txq->tx_stats.len > 0) { | |
1178 | int tx; | |
a66098da LB |
1179 | struct mwl8k_tx_desc *tx_desc; |
1180 | unsigned long addr; | |
ce9e2e1b | 1181 | int size; |
a66098da LB |
1182 | struct sk_buff *skb; |
1183 | struct ieee80211_tx_info *info; | |
1184 | u32 status; | |
1185 | ||
a66098da LB |
1186 | tx = txq->tx_head; |
1187 | tx_desc = txq->tx_desc_area + tx; | |
1188 | ||
1189 | status = le32_to_cpu(tx_desc->status); | |
1190 | ||
1191 | if (status & MWL8K_TXD_STATUS_FW_OWNED) { | |
1192 | if (!force) | |
1193 | break; | |
1194 | tx_desc->status &= | |
1195 | ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); | |
1196 | } | |
1197 | ||
1198 | txq->tx_head = (tx + 1) % MWL8K_TX_DESCS; | |
1199 | BUG_ON(txq->tx_stats.len == 0); | |
1200 | txq->tx_stats.len--; | |
1201 | priv->pending_tx_pkts--; | |
1202 | ||
1203 | addr = le32_to_cpu(tx_desc->pkt_phys_addr); | |
ce9e2e1b | 1204 | size = le16_to_cpu(tx_desc->pkt_len); |
76266b2a LB |
1205 | skb = txq->tx_skb[tx]; |
1206 | txq->tx_skb[tx] = NULL; | |
a66098da LB |
1207 | |
1208 | BUG_ON(skb == NULL); | |
1209 | pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); | |
1210 | ||
76266b2a | 1211 | mwl8k_remove_dma_header(skb); |
a66098da LB |
1212 | |
1213 | /* Mark descriptor as unused */ | |
1214 | tx_desc->pkt_phys_addr = 0; | |
1215 | tx_desc->pkt_len = 0; | |
1216 | ||
a66098da LB |
1217 | info = IEEE80211_SKB_CB(skb); |
1218 | ieee80211_tx_info_clear_status(info); | |
ce9e2e1b | 1219 | if (MWL8K_TXD_SUCCESS(status)) |
a66098da | 1220 | info->flags |= IEEE80211_TX_STAT_ACK; |
a66098da LB |
1221 | |
1222 | ieee80211_tx_status_irqsafe(hw, skb); | |
1223 | ||
618952a7 | 1224 | wake = 1; |
a66098da LB |
1225 | } |
1226 | ||
618952a7 | 1227 | if (wake && priv->radio_on && !mutex_is_locked(&priv->fw_mutex)) |
a66098da LB |
1228 | ieee80211_wake_queue(hw, index); |
1229 | } | |
1230 | ||
1231 | /* must be called only when the card's transmit is completely halted */ | |
1232 | static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) | |
1233 | { | |
1234 | struct mwl8k_priv *priv = hw->priv; | |
1235 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1236 | ||
1237 | mwl8k_txq_reclaim(hw, index, 1); | |
1238 | ||
1239 | kfree(txq->tx_skb); | |
1240 | txq->tx_skb = NULL; | |
1241 | ||
1242 | pci_free_consistent(priv->pdev, | |
1243 | MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), | |
1244 | txq->tx_desc_area, txq->tx_desc_dma); | |
1245 | txq->tx_desc_area = NULL; | |
1246 | } | |
1247 | ||
1248 | static int | |
1249 | mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) | |
1250 | { | |
1251 | struct mwl8k_priv *priv = hw->priv; | |
1252 | struct ieee80211_tx_info *tx_info; | |
23b33906 | 1253 | struct mwl8k_vif *mwl8k_vif; |
a66098da LB |
1254 | struct ieee80211_hdr *wh; |
1255 | struct mwl8k_tx_queue *txq; | |
1256 | struct mwl8k_tx_desc *tx; | |
a66098da | 1257 | dma_addr_t dma; |
23b33906 LB |
1258 | u32 txstatus; |
1259 | u8 txdatarate; | |
1260 | u16 qos; | |
a66098da | 1261 | |
23b33906 LB |
1262 | wh = (struct ieee80211_hdr *)skb->data; |
1263 | if (ieee80211_is_data_qos(wh->frame_control)) | |
1264 | qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); | |
1265 | else | |
1266 | qos = 0; | |
a66098da | 1267 | |
76266b2a | 1268 | mwl8k_add_dma_header(skb); |
23b33906 | 1269 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da LB |
1270 | |
1271 | tx_info = IEEE80211_SKB_CB(skb); | |
1272 | mwl8k_vif = MWL8K_VIF(tx_info->control.vif); | |
a66098da LB |
1273 | |
1274 | if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
1275 | u16 seqno = mwl8k_vif->seqno; | |
23b33906 | 1276 | |
a66098da LB |
1277 | wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
1278 | wh->seq_ctrl |= cpu_to_le16(seqno << 4); | |
1279 | mwl8k_vif->seqno = seqno++ % 4096; | |
1280 | } | |
1281 | ||
23b33906 LB |
1282 | /* Setup firmware control bit fields for each frame type. */ |
1283 | txstatus = 0; | |
1284 | txdatarate = 0; | |
1285 | if (ieee80211_is_mgmt(wh->frame_control) || | |
1286 | ieee80211_is_ctl(wh->frame_control)) { | |
1287 | txdatarate = 0; | |
1288 | qos = mwl8k_qos_setbit_eosp(qos); | |
1289 | /* Set Queue size to unspecified */ | |
1290 | qos = mwl8k_qos_setbit_qlen(qos, 0xff); | |
1291 | } else if (ieee80211_is_data(wh->frame_control)) { | |
1292 | txdatarate = 1; | |
1293 | if (is_multicast_ether_addr(wh->addr1)) | |
1294 | txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX; | |
1295 | ||
1296 | /* Send pkt in an aggregate if AMPDU frame. */ | |
1297 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) | |
1298 | qos = mwl8k_qos_setbit_ack(qos, | |
1299 | MWL8K_TXD_ACK_POLICY_BLOCKACK); | |
1300 | else | |
1301 | qos = mwl8k_qos_setbit_ack(qos, | |
1302 | MWL8K_TXD_ACK_POLICY_NORMAL); | |
1303 | ||
1304 | if (qos & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT) | |
1305 | qos = mwl8k_qos_setbit_amsdu(qos); | |
1306 | } | |
a66098da LB |
1307 | |
1308 | dma = pci_map_single(priv->pdev, skb->data, | |
1309 | skb->len, PCI_DMA_TODEVICE); | |
1310 | ||
1311 | if (pci_dma_mapping_error(priv->pdev, dma)) { | |
1312 | printk(KERN_DEBUG "%s: failed to dma map skb, " | |
c2c357ce | 1313 | "dropping TX frame.\n", wiphy_name(hw->wiphy)); |
23b33906 | 1314 | dev_kfree_skb(skb); |
a66098da LB |
1315 | return NETDEV_TX_OK; |
1316 | } | |
1317 | ||
23b33906 | 1318 | spin_lock_bh(&priv->tx_lock); |
a66098da | 1319 | |
23b33906 | 1320 | txq = priv->txq + index; |
a66098da | 1321 | |
23b33906 LB |
1322 | BUG_ON(txq->tx_skb[txq->tx_tail] != NULL); |
1323 | txq->tx_skb[txq->tx_tail] = skb; | |
a66098da | 1324 | |
23b33906 LB |
1325 | tx = txq->tx_desc_area + txq->tx_tail; |
1326 | tx->data_rate = txdatarate; | |
1327 | tx->tx_priority = index; | |
a66098da | 1328 | tx->qos_control = cpu_to_le16(qos); |
a66098da LB |
1329 | tx->pkt_phys_addr = cpu_to_le32(dma); |
1330 | tx->pkt_len = cpu_to_le16(skb->len); | |
23b33906 LB |
1331 | tx->rate_info = 0; |
1332 | tx->peer_id = mwl8k_vif->peer_id; | |
a66098da | 1333 | wmb(); |
23b33906 LB |
1334 | tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); |
1335 | ||
1336 | txq->tx_stats.count++; | |
a66098da LB |
1337 | txq->tx_stats.len++; |
1338 | priv->pending_tx_pkts++; | |
a66098da | 1339 | |
23b33906 | 1340 | txq->tx_tail++; |
a66098da LB |
1341 | if (txq->tx_tail == MWL8K_TX_DESCS) |
1342 | txq->tx_tail = 0; | |
23b33906 | 1343 | |
a66098da LB |
1344 | if (txq->tx_head == txq->tx_tail) |
1345 | ieee80211_stop_queue(hw, index); | |
1346 | ||
23b33906 | 1347 | mwl8k_tx_start(priv); |
a66098da LB |
1348 | |
1349 | spin_unlock_bh(&priv->tx_lock); | |
1350 | ||
1351 | return NETDEV_TX_OK; | |
1352 | } | |
1353 | ||
1354 | ||
618952a7 LB |
1355 | /* |
1356 | * Firmware access. | |
1357 | * | |
1358 | * We have the following requirements for issuing firmware commands: | |
1359 | * - Some commands require that the packet transmit path is idle when | |
1360 | * the command is issued. (For simplicity, we'll just quiesce the | |
1361 | * transmit path for every command.) | |
1362 | * - There are certain sequences of commands that need to be issued to | |
1363 | * the hardware sequentially, with no other intervening commands. | |
1364 | * | |
1365 | * This leads to an implementation of a "firmware lock" as a mutex that | |
1366 | * can be taken recursively, and which is taken by both the low-level | |
1367 | * command submission function (mwl8k_post_cmd) as well as any users of | |
1368 | * that function that require issuing of an atomic sequence of commands, | |
1369 | * and quiesces the transmit path whenever it's taken. | |
1370 | */ | |
1371 | static int mwl8k_fw_lock(struct ieee80211_hw *hw) | |
1372 | { | |
1373 | struct mwl8k_priv *priv = hw->priv; | |
1374 | ||
1375 | if (priv->fw_mutex_owner != current) { | |
1376 | int rc; | |
1377 | ||
1378 | mutex_lock(&priv->fw_mutex); | |
1379 | ieee80211_stop_queues(hw); | |
1380 | ||
1381 | rc = mwl8k_tx_wait_empty(hw); | |
1382 | if (rc) { | |
1383 | ieee80211_wake_queues(hw); | |
1384 | mutex_unlock(&priv->fw_mutex); | |
1385 | ||
1386 | return rc; | |
1387 | } | |
1388 | ||
1389 | priv->fw_mutex_owner = current; | |
1390 | } | |
1391 | ||
1392 | priv->fw_mutex_depth++; | |
1393 | ||
1394 | return 0; | |
1395 | } | |
1396 | ||
1397 | static void mwl8k_fw_unlock(struct ieee80211_hw *hw) | |
1398 | { | |
1399 | struct mwl8k_priv *priv = hw->priv; | |
1400 | ||
1401 | if (!--priv->fw_mutex_depth) { | |
1402 | ieee80211_wake_queues(hw); | |
1403 | priv->fw_mutex_owner = NULL; | |
1404 | mutex_unlock(&priv->fw_mutex); | |
1405 | } | |
1406 | } | |
1407 | ||
1408 | ||
a66098da LB |
1409 | /* |
1410 | * Command processing. | |
1411 | */ | |
1412 | ||
1413 | /* Timeout firmware commands after 2000ms */ | |
1414 | #define MWL8K_CMD_TIMEOUT_MS 2000 | |
1415 | ||
1416 | static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) | |
1417 | { | |
1418 | DECLARE_COMPLETION_ONSTACK(cmd_wait); | |
1419 | struct mwl8k_priv *priv = hw->priv; | |
1420 | void __iomem *regs = priv->regs; | |
1421 | dma_addr_t dma_addr; | |
1422 | unsigned int dma_size; | |
1423 | int rc; | |
a66098da LB |
1424 | unsigned long timeout = 0; |
1425 | u8 buf[32]; | |
1426 | ||
c2c357ce | 1427 | cmd->result = 0xffff; |
a66098da LB |
1428 | dma_size = le16_to_cpu(cmd->length); |
1429 | dma_addr = pci_map_single(priv->pdev, cmd, dma_size, | |
1430 | PCI_DMA_BIDIRECTIONAL); | |
1431 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
1432 | return -ENOMEM; | |
1433 | ||
618952a7 | 1434 | rc = mwl8k_fw_lock(hw); |
39a1e42e LB |
1435 | if (rc) { |
1436 | pci_unmap_single(priv->pdev, dma_addr, dma_size, | |
1437 | PCI_DMA_BIDIRECTIONAL); | |
618952a7 | 1438 | return rc; |
39a1e42e | 1439 | } |
a66098da | 1440 | |
a66098da LB |
1441 | priv->hostcmd_wait = &cmd_wait; |
1442 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
1443 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
1444 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1445 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1446 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
a66098da LB |
1447 | |
1448 | timeout = wait_for_completion_timeout(&cmd_wait, | |
1449 | msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); | |
1450 | ||
618952a7 LB |
1451 | priv->hostcmd_wait = NULL; |
1452 | ||
1453 | mwl8k_fw_unlock(hw); | |
1454 | ||
37055bd4 LB |
1455 | pci_unmap_single(priv->pdev, dma_addr, dma_size, |
1456 | PCI_DMA_BIDIRECTIONAL); | |
1457 | ||
a66098da | 1458 | if (!timeout) { |
a66098da | 1459 | printk(KERN_ERR "%s: Command %s timeout after %u ms\n", |
c2c357ce | 1460 | wiphy_name(hw->wiphy), |
a66098da LB |
1461 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
1462 | MWL8K_CMD_TIMEOUT_MS); | |
1463 | rc = -ETIMEDOUT; | |
1464 | } else { | |
ce9e2e1b | 1465 | rc = cmd->result ? -EINVAL : 0; |
a66098da LB |
1466 | if (rc) |
1467 | printk(KERN_ERR "%s: Command %s error 0x%x\n", | |
c2c357ce | 1468 | wiphy_name(hw->wiphy), |
a66098da | 1469 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
76c962a2 | 1470 | le16_to_cpu(cmd->result)); |
a66098da LB |
1471 | } |
1472 | ||
a66098da LB |
1473 | return rc; |
1474 | } | |
1475 | ||
1476 | /* | |
1477 | * GET_HW_SPEC. | |
1478 | */ | |
1479 | struct mwl8k_cmd_get_hw_spec { | |
1480 | struct mwl8k_cmd_pkt header; | |
1481 | __u8 hw_rev; | |
1482 | __u8 host_interface; | |
1483 | __le16 num_mcaddrs; | |
d89173f2 | 1484 | __u8 perm_addr[ETH_ALEN]; |
a66098da LB |
1485 | __le16 region_code; |
1486 | __le32 fw_rev; | |
1487 | __le32 ps_cookie; | |
1488 | __le32 caps; | |
1489 | __u8 mcs_bitmap[16]; | |
1490 | __le32 rx_queue_ptr; | |
1491 | __le32 num_tx_queues; | |
1492 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1493 | __le32 caps2; | |
1494 | __le32 num_tx_desc_per_queue; | |
1495 | __le32 total_rx_desc; | |
1496 | } __attribute__((packed)); | |
1497 | ||
1498 | static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw) | |
1499 | { | |
1500 | struct mwl8k_priv *priv = hw->priv; | |
1501 | struct mwl8k_cmd_get_hw_spec *cmd; | |
1502 | int rc; | |
1503 | int i; | |
1504 | ||
1505 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1506 | if (cmd == NULL) | |
1507 | return -ENOMEM; | |
1508 | ||
1509 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1510 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1511 | ||
1512 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1513 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
1514 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rx_desc_dma); | |
4ff6432e | 1515 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); |
a66098da LB |
1516 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
1517 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].tx_desc_dma); | |
4ff6432e LB |
1518 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
1519 | cmd->total_rx_desc = cpu_to_le32(MWL8K_RX_DESCS); | |
a66098da LB |
1520 | |
1521 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1522 | ||
1523 | if (!rc) { | |
1524 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1525 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
4ff6432e | 1526 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); |
a66098da | 1527 | priv->hw_rev = cmd->hw_rev; |
a66098da LB |
1528 | } |
1529 | ||
1530 | kfree(cmd); | |
1531 | return rc; | |
1532 | } | |
1533 | ||
1534 | /* | |
1535 | * CMD_MAC_MULTICAST_ADR. | |
1536 | */ | |
1537 | struct mwl8k_cmd_mac_multicast_adr { | |
1538 | struct mwl8k_cmd_pkt header; | |
1539 | __le16 action; | |
1540 | __le16 numaddr; | |
ce9e2e1b | 1541 | __u8 addr[0][ETH_ALEN]; |
a66098da LB |
1542 | }; |
1543 | ||
d5e30845 LB |
1544 | #define MWL8K_ENABLE_RX_DIRECTED 0x0001 |
1545 | #define MWL8K_ENABLE_RX_MULTICAST 0x0002 | |
1546 | #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004 | |
1547 | #define MWL8K_ENABLE_RX_BROADCAST 0x0008 | |
ce9e2e1b | 1548 | |
e81cd2d6 | 1549 | static struct mwl8k_cmd_pkt * |
447ced07 | 1550 | __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti, |
e81cd2d6 | 1551 | int mc_count, struct dev_addr_list *mclist) |
a66098da | 1552 | { |
e81cd2d6 | 1553 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 1554 | struct mwl8k_cmd_mac_multicast_adr *cmd; |
e81cd2d6 | 1555 | int size; |
e81cd2d6 | 1556 | |
447ced07 | 1557 | if (allmulti || mc_count > priv->num_mcaddrs) { |
d5e30845 LB |
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 | ||
32060e1b LB |
1909 | /* |
1910 | * CMD_SET_MAC_ADDR. | |
1911 | */ | |
1912 | struct mwl8k_cmd_set_mac_addr { | |
1913 | struct mwl8k_cmd_pkt header; | |
1914 | __u8 mac_addr[ETH_ALEN]; | |
1915 | } __attribute__((packed)); | |
1916 | ||
1917 | static int mwl8k_set_mac_addr(struct ieee80211_hw *hw, u8 *mac) | |
1918 | { | |
1919 | struct mwl8k_cmd_set_mac_addr *cmd; | |
1920 | int rc; | |
1921 | ||
1922 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1923 | if (cmd == NULL) | |
1924 | return -ENOMEM; | |
1925 | ||
1926 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR); | |
1927 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1928 | memcpy(cmd->mac_addr, mac, ETH_ALEN); | |
1929 | ||
1930 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1931 | kfree(cmd); | |
1932 | ||
1933 | return rc; | |
1934 | } | |
1935 | ||
1936 | ||
a66098da | 1937 | /* |
ce9e2e1b | 1938 | * CMD_SET_RATEADAPT_MODE. |
a66098da LB |
1939 | */ |
1940 | struct mwl8k_cmd_set_rate_adapt_mode { | |
1941 | struct mwl8k_cmd_pkt header; | |
1942 | __le16 action; | |
1943 | __le16 mode; | |
1944 | } __attribute__((packed)); | |
1945 | ||
1946 | static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw *hw, __u16 mode) | |
1947 | { | |
1948 | struct mwl8k_cmd_set_rate_adapt_mode *cmd; | |
1949 | int rc; | |
1950 | ||
1951 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1952 | if (cmd == NULL) | |
1953 | return -ENOMEM; | |
1954 | ||
1955 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); | |
1956 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1957 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1958 | cmd->mode = cpu_to_le16(mode); | |
1959 | ||
1960 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1961 | kfree(cmd); | |
1962 | ||
1963 | return rc; | |
1964 | } | |
1965 | ||
1966 | /* | |
1967 | * CMD_SET_WMM_MODE. | |
1968 | */ | |
1969 | struct mwl8k_cmd_set_wmm { | |
1970 | struct mwl8k_cmd_pkt header; | |
1971 | __le16 action; | |
1972 | } __attribute__((packed)); | |
1973 | ||
1974 | static int mwl8k_set_wmm(struct ieee80211_hw *hw, bool enable) | |
1975 | { | |
1976 | struct mwl8k_priv *priv = hw->priv; | |
1977 | struct mwl8k_cmd_set_wmm *cmd; | |
1978 | int rc; | |
1979 | ||
1980 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1981 | if (cmd == NULL) | |
1982 | return -ENOMEM; | |
1983 | ||
1984 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); | |
1985 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
0439b1f5 | 1986 | cmd->action = cpu_to_le16(!!enable); |
a66098da LB |
1987 | |
1988 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1989 | kfree(cmd); | |
1990 | ||
1991 | if (!rc) | |
0439b1f5 | 1992 | priv->wmm_enabled = enable; |
a66098da LB |
1993 | |
1994 | return rc; | |
1995 | } | |
1996 | ||
1997 | /* | |
1998 | * CMD_SET_RTS_THRESHOLD. | |
1999 | */ | |
2000 | struct mwl8k_cmd_rts_threshold { | |
2001 | struct mwl8k_cmd_pkt header; | |
2002 | __le16 action; | |
2003 | __le16 threshold; | |
2004 | } __attribute__((packed)); | |
2005 | ||
2006 | static int mwl8k_rts_threshold(struct ieee80211_hw *hw, | |
733d3067 | 2007 | u16 action, u16 threshold) |
a66098da LB |
2008 | { |
2009 | struct mwl8k_cmd_rts_threshold *cmd; | |
2010 | int rc; | |
2011 | ||
2012 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2013 | if (cmd == NULL) | |
2014 | return -ENOMEM; | |
2015 | ||
2016 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); | |
2017 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2018 | cmd->action = cpu_to_le16(action); | |
733d3067 | 2019 | cmd->threshold = cpu_to_le16(threshold); |
a66098da LB |
2020 | |
2021 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2022 | kfree(cmd); | |
2023 | ||
2024 | return rc; | |
2025 | } | |
2026 | ||
2027 | /* | |
2028 | * CMD_SET_EDCA_PARAMS. | |
2029 | */ | |
2030 | struct mwl8k_cmd_set_edca_params { | |
2031 | struct mwl8k_cmd_pkt header; | |
2032 | ||
2033 | /* See MWL8K_SET_EDCA_XXX below */ | |
2034 | __le16 action; | |
2035 | ||
2036 | /* TX opportunity in units of 32 us */ | |
2037 | __le16 txop; | |
2038 | ||
2039 | /* Log exponent of max contention period: 0...15*/ | |
2040 | __u8 log_cw_max; | |
2041 | ||
2042 | /* Log exponent of min contention period: 0...15 */ | |
2043 | __u8 log_cw_min; | |
2044 | ||
2045 | /* Adaptive interframe spacing in units of 32us */ | |
2046 | __u8 aifs; | |
2047 | ||
2048 | /* TX queue to configure */ | |
2049 | __u8 txq; | |
2050 | } __attribute__((packed)); | |
2051 | ||
a66098da LB |
2052 | #define MWL8K_SET_EDCA_CW 0x01 |
2053 | #define MWL8K_SET_EDCA_TXOP 0x02 | |
2054 | #define MWL8K_SET_EDCA_AIFS 0x04 | |
2055 | ||
2056 | #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ | |
2057 | MWL8K_SET_EDCA_TXOP | \ | |
2058 | MWL8K_SET_EDCA_AIFS) | |
2059 | ||
2060 | static int | |
2061 | mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, | |
2062 | __u16 cw_min, __u16 cw_max, | |
2063 | __u8 aifs, __u16 txop) | |
2064 | { | |
2065 | struct mwl8k_cmd_set_edca_params *cmd; | |
a66098da LB |
2066 | int rc; |
2067 | ||
2068 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2069 | if (cmd == NULL) | |
2070 | return -ENOMEM; | |
2071 | ||
a66098da LB |
2072 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); |
2073 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
2074 | cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); |
2075 | cmd->txop = cpu_to_le16(txop); | |
ce9e2e1b LB |
2076 | cmd->log_cw_max = (u8)ilog2(cw_max + 1); |
2077 | cmd->log_cw_min = (u8)ilog2(cw_min + 1); | |
a66098da LB |
2078 | cmd->aifs = aifs; |
2079 | cmd->txq = qnum; | |
2080 | ||
2081 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2082 | kfree(cmd); | |
2083 | ||
2084 | return rc; | |
2085 | } | |
2086 | ||
2087 | /* | |
2088 | * CMD_FINALIZE_JOIN. | |
2089 | */ | |
2090 | ||
2091 | /* FJ beacon buffer size is compiled into the firmware. */ | |
2092 | #define MWL8K_FJ_BEACON_MAXLEN 128 | |
2093 | ||
2094 | struct mwl8k_cmd_finalize_join { | |
2095 | struct mwl8k_cmd_pkt header; | |
2096 | __le32 sleep_interval; /* Number of beacon periods to sleep */ | |
2097 | __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; | |
2098 | } __attribute__((packed)); | |
2099 | ||
2100 | static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, | |
2101 | __u16 framelen, __u16 dtim) | |
2102 | { | |
2103 | struct mwl8k_cmd_finalize_join *cmd; | |
2104 | struct ieee80211_mgmt *payload = frame; | |
2105 | u16 hdrlen; | |
2106 | u32 payload_len; | |
2107 | int rc; | |
2108 | ||
2109 | if (frame == NULL) | |
2110 | return -EINVAL; | |
2111 | ||
2112 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2113 | if (cmd == NULL) | |
2114 | return -ENOMEM; | |
2115 | ||
2116 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); | |
2117 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 2118 | cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); |
a66098da LB |
2119 | |
2120 | hdrlen = ieee80211_hdrlen(payload->frame_control); | |
2121 | ||
2122 | payload_len = framelen > hdrlen ? framelen - hdrlen : 0; | |
2123 | ||
2124 | /* XXX TBD Might just have to abort and return an error */ | |
2125 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) | |
2126 | printk(KERN_ERR "%s(): WARNING: Incomplete beacon " | |
c2c357ce LB |
2127 | "sent to firmware. Sz=%u MAX=%u\n", __func__, |
2128 | payload_len, MWL8K_FJ_BEACON_MAXLEN); | |
a66098da | 2129 | |
ce9e2e1b LB |
2130 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) |
2131 | payload_len = MWL8K_FJ_BEACON_MAXLEN; | |
a66098da LB |
2132 | |
2133 | if (payload && payload_len) | |
2134 | memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); | |
2135 | ||
2136 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2137 | kfree(cmd); | |
2138 | return rc; | |
2139 | } | |
2140 | ||
2141 | /* | |
2142 | * CMD_UPDATE_STADB. | |
2143 | */ | |
2144 | struct mwl8k_cmd_update_sta_db { | |
2145 | struct mwl8k_cmd_pkt header; | |
2146 | ||
2147 | /* See STADB_ACTION_TYPE */ | |
2148 | __le32 action; | |
2149 | ||
2150 | /* Peer MAC address */ | |
d89173f2 | 2151 | __u8 peer_addr[ETH_ALEN]; |
a66098da LB |
2152 | |
2153 | __le32 reserved; | |
2154 | ||
2155 | /* Peer info - valid during add/update. */ | |
2156 | struct peer_capability_info peer_info; | |
2157 | } __attribute__((packed)); | |
2158 | ||
2159 | static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, | |
2160 | struct ieee80211_vif *vif, __u32 action) | |
2161 | { | |
2162 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2163 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2164 | struct mwl8k_cmd_update_sta_db *cmd; | |
2165 | struct peer_capability_info *peer_info; | |
2166 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
a66098da LB |
2167 | int rc; |
2168 | __u8 count, *rates; | |
2169 | ||
2170 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2171 | if (cmd == NULL) | |
2172 | return -ENOMEM; | |
2173 | ||
2174 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
2175 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2176 | ||
2177 | cmd->action = cpu_to_le32(action); | |
2178 | peer_info = &cmd->peer_info; | |
d89173f2 | 2179 | memcpy(cmd->peer_addr, mv_vif->bssid, ETH_ALEN); |
a66098da LB |
2180 | |
2181 | switch (action) { | |
2182 | case MWL8K_STA_DB_ADD_ENTRY: | |
2183 | case MWL8K_STA_DB_MODIFY_ENTRY: | |
2184 | /* Build peer_info block */ | |
2185 | peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; | |
2186 | peer_info->basic_caps = cpu_to_le16(info->assoc_capability); | |
2187 | peer_info->interop = 1; | |
2188 | peer_info->amsdu_enabled = 0; | |
2189 | ||
2190 | rates = peer_info->legacy_rates; | |
ce9e2e1b | 2191 | for (count = 0; count < mv_vif->legacy_nrates; count++) |
a66098da LB |
2192 | rates[count] = bitrates[count].hw_value; |
2193 | ||
2194 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2195 | if (rc == 0) | |
2196 | mv_vif->peer_id = peer_info->station_id; | |
2197 | ||
2198 | break; | |
2199 | ||
2200 | case MWL8K_STA_DB_DEL_ENTRY: | |
2201 | case MWL8K_STA_DB_FLUSH: | |
2202 | default: | |
2203 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2204 | if (rc == 0) | |
2205 | mv_vif->peer_id = 0; | |
2206 | break; | |
2207 | } | |
2208 | kfree(cmd); | |
2209 | ||
2210 | return rc; | |
2211 | } | |
2212 | ||
2213 | /* | |
2214 | * CMD_SET_AID. | |
2215 | */ | |
a66098da LB |
2216 | #define MWL8K_RATE_INDEX_MAX_ARRAY 14 |
2217 | ||
2218 | #define MWL8K_FRAME_PROT_DISABLED 0x00 | |
2219 | #define MWL8K_FRAME_PROT_11G 0x07 | |
2220 | #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 | |
2221 | #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 | |
a66098da LB |
2222 | |
2223 | struct mwl8k_cmd_update_set_aid { | |
2224 | struct mwl8k_cmd_pkt header; | |
2225 | __le16 aid; | |
2226 | ||
2227 | /* AP's MAC address (BSSID) */ | |
d89173f2 | 2228 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
2229 | __le16 protection_mode; |
2230 | __u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2231 | } __attribute__((packed)); | |
2232 | ||
2233 | static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, | |
2234 | struct ieee80211_vif *vif) | |
2235 | { | |
2236 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2237 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2238 | struct mwl8k_cmd_update_set_aid *cmd; | |
2239 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2240 | int count; | |
2241 | u16 prot_mode; | |
2242 | int rc; | |
2243 | ||
2244 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2245 | if (cmd == NULL) | |
2246 | return -ENOMEM; | |
2247 | ||
2248 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); | |
2249 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2250 | cmd->aid = cpu_to_le16(info->aid); | |
2251 | ||
d89173f2 | 2252 | memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN); |
a66098da | 2253 | |
a66098da LB |
2254 | if (info->use_cts_prot) { |
2255 | prot_mode = MWL8K_FRAME_PROT_11G; | |
2256 | } else { | |
9ed6bcce | 2257 | switch (info->ht_operation_mode & |
a66098da LB |
2258 | IEEE80211_HT_OP_MODE_PROTECTION) { |
2259 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
2260 | prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; | |
2261 | break; | |
2262 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
2263 | prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; | |
2264 | break; | |
2265 | default: | |
2266 | prot_mode = MWL8K_FRAME_PROT_DISABLED; | |
2267 | break; | |
2268 | } | |
2269 | } | |
a66098da LB |
2270 | cmd->protection_mode = cpu_to_le16(prot_mode); |
2271 | ||
2272 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2273 | cmd->supp_rates[count] = bitrates[count].hw_value; | |
2274 | ||
2275 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2276 | kfree(cmd); | |
2277 | ||
2278 | return rc; | |
2279 | } | |
2280 | ||
2281 | /* | |
2282 | * CMD_SET_RATE. | |
2283 | */ | |
2284 | struct mwl8k_cmd_update_rateset { | |
2285 | struct mwl8k_cmd_pkt header; | |
2286 | __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2287 | ||
2288 | /* Bitmap for supported MCS codes. */ | |
2289 | __u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2290 | __u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2291 | } __attribute__((packed)); | |
2292 | ||
2293 | static int mwl8k_update_rateset(struct ieee80211_hw *hw, | |
2294 | struct ieee80211_vif *vif) | |
2295 | { | |
2296 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2297 | struct mwl8k_cmd_update_rateset *cmd; | |
2298 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2299 | int count; | |
2300 | int rc; | |
2301 | ||
2302 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2303 | if (cmd == NULL) | |
2304 | return -ENOMEM; | |
2305 | ||
2306 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); | |
2307 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2308 | ||
2309 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2310 | cmd->legacy_rates[count] = bitrates[count].hw_value; | |
2311 | ||
2312 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2313 | kfree(cmd); | |
2314 | ||
2315 | return rc; | |
2316 | } | |
2317 | ||
2318 | /* | |
2319 | * CMD_USE_FIXED_RATE. | |
2320 | */ | |
2321 | #define MWL8K_RATE_TABLE_SIZE 8 | |
2322 | #define MWL8K_UCAST_RATE 0 | |
a66098da LB |
2323 | #define MWL8K_USE_AUTO_RATE 0x0002 |
2324 | ||
2325 | struct mwl8k_rate_entry { | |
2326 | /* Set to 1 if HT rate, 0 if legacy. */ | |
2327 | __le32 is_ht_rate; | |
2328 | ||
2329 | /* Set to 1 to use retry_count field. */ | |
2330 | __le32 enable_retry; | |
2331 | ||
2332 | /* Specified legacy rate or MCS. */ | |
2333 | __le32 rate; | |
2334 | ||
2335 | /* Number of allowed retries. */ | |
2336 | __le32 retry_count; | |
2337 | } __attribute__((packed)); | |
2338 | ||
2339 | struct mwl8k_rate_table { | |
2340 | /* 1 to allow specified rate and below */ | |
2341 | __le32 allow_rate_drop; | |
2342 | __le32 num_rates; | |
2343 | struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE]; | |
2344 | } __attribute__((packed)); | |
2345 | ||
2346 | struct mwl8k_cmd_use_fixed_rate { | |
2347 | struct mwl8k_cmd_pkt header; | |
2348 | __le32 action; | |
2349 | struct mwl8k_rate_table rate_table; | |
2350 | ||
2351 | /* Unicast, Broadcast or Multicast */ | |
2352 | __le32 rate_type; | |
2353 | __le32 reserved1; | |
2354 | __le32 reserved2; | |
2355 | } __attribute__((packed)); | |
2356 | ||
2357 | static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw, | |
2358 | u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table) | |
2359 | { | |
2360 | struct mwl8k_cmd_use_fixed_rate *cmd; | |
2361 | int count; | |
2362 | int rc; | |
2363 | ||
2364 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2365 | if (cmd == NULL) | |
2366 | return -ENOMEM; | |
2367 | ||
2368 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
2369 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2370 | ||
2371 | cmd->action = cpu_to_le32(action); | |
2372 | cmd->rate_type = cpu_to_le32(rate_type); | |
2373 | ||
2374 | if (rate_table != NULL) { | |
c2c357ce LB |
2375 | /* |
2376 | * Copy over each field manually so that endian | |
2377 | * conversion can be done. | |
2378 | */ | |
a66098da LB |
2379 | cmd->rate_table.allow_rate_drop = |
2380 | cpu_to_le32(rate_table->allow_rate_drop); | |
2381 | cmd->rate_table.num_rates = | |
2382 | cpu_to_le32(rate_table->num_rates); | |
2383 | ||
2384 | for (count = 0; count < rate_table->num_rates; count++) { | |
2385 | struct mwl8k_rate_entry *dst = | |
2386 | &cmd->rate_table.rate_entry[count]; | |
2387 | struct mwl8k_rate_entry *src = | |
2388 | &rate_table->rate_entry[count]; | |
2389 | ||
2390 | dst->is_ht_rate = cpu_to_le32(src->is_ht_rate); | |
2391 | dst->enable_retry = cpu_to_le32(src->enable_retry); | |
2392 | dst->rate = cpu_to_le32(src->rate); | |
2393 | dst->retry_count = cpu_to_le32(src->retry_count); | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2398 | kfree(cmd); | |
2399 | ||
2400 | return rc; | |
2401 | } | |
2402 | ||
2403 | ||
2404 | /* | |
2405 | * Interrupt handling. | |
2406 | */ | |
2407 | static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) | |
2408 | { | |
2409 | struct ieee80211_hw *hw = dev_id; | |
2410 | struct mwl8k_priv *priv = hw->priv; | |
2411 | u32 status; | |
2412 | ||
2413 | status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2414 | iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2415 | ||
a66098da LB |
2416 | if (!status) |
2417 | return IRQ_NONE; | |
2418 | ||
2419 | if (status & MWL8K_A2H_INT_TX_DONE) | |
2420 | tasklet_schedule(&priv->tx_reclaim_task); | |
2421 | ||
2422 | if (status & MWL8K_A2H_INT_RX_READY) { | |
2423 | while (rxq_process(hw, 0, 1)) | |
2424 | rxq_refill(hw, 0, 1); | |
2425 | } | |
2426 | ||
2427 | if (status & MWL8K_A2H_INT_OPC_DONE) { | |
618952a7 | 2428 | if (priv->hostcmd_wait != NULL) |
a66098da | 2429 | complete(priv->hostcmd_wait); |
a66098da LB |
2430 | } |
2431 | ||
2432 | if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { | |
618952a7 | 2433 | if (!mutex_is_locked(&priv->fw_mutex) && |
88de754a | 2434 | priv->radio_on && priv->pending_tx_pkts) |
618952a7 | 2435 | mwl8k_tx_start(priv); |
a66098da LB |
2436 | } |
2437 | ||
2438 | return IRQ_HANDLED; | |
2439 | } | |
2440 | ||
2441 | ||
2442 | /* | |
2443 | * Core driver operations. | |
2444 | */ | |
2445 | static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
2446 | { | |
2447 | struct mwl8k_priv *priv = hw->priv; | |
2448 | int index = skb_get_queue_mapping(skb); | |
2449 | int rc; | |
2450 | ||
2451 | if (priv->current_channel == NULL) { | |
2452 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
c2c357ce | 2453 | "disabled\n", wiphy_name(hw->wiphy)); |
a66098da LB |
2454 | dev_kfree_skb(skb); |
2455 | return NETDEV_TX_OK; | |
2456 | } | |
2457 | ||
2458 | rc = mwl8k_txq_xmit(hw, index, skb); | |
2459 | ||
2460 | return rc; | |
2461 | } | |
2462 | ||
a66098da LB |
2463 | static int mwl8k_start(struct ieee80211_hw *hw) |
2464 | { | |
a66098da LB |
2465 | struct mwl8k_priv *priv = hw->priv; |
2466 | int rc; | |
2467 | ||
a66098da LB |
2468 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, |
2469 | IRQF_SHARED, MWL8K_NAME, hw); | |
2470 | if (rc) { | |
2471 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 2472 | wiphy_name(hw->wiphy)); |
2ec610cb | 2473 | return -EIO; |
a66098da LB |
2474 | } |
2475 | ||
2ec610cb LB |
2476 | /* Enable tx reclaim tasklet */ |
2477 | tasklet_enable(&priv->tx_reclaim_task); | |
2478 | ||
a66098da | 2479 | /* Enable interrupts */ |
c23b5a69 | 2480 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da | 2481 | |
2ec610cb LB |
2482 | rc = mwl8k_fw_lock(hw); |
2483 | if (!rc) { | |
2484 | rc = mwl8k_cmd_802_11_radio_enable(hw); | |
a66098da | 2485 | |
2ec610cb LB |
2486 | if (!rc) |
2487 | rc = mwl8k_cmd_set_pre_scan(hw); | |
a66098da | 2488 | |
2ec610cb LB |
2489 | if (!rc) |
2490 | rc = mwl8k_cmd_set_post_scan(hw, | |
2491 | "\x00\x00\x00\x00\x00\x00"); | |
2492 | ||
2493 | if (!rc) | |
2494 | rc = mwl8k_cmd_setrateadaptmode(hw, 0); | |
a66098da | 2495 | |
2ec610cb LB |
2496 | if (!rc) |
2497 | rc = mwl8k_set_wmm(hw, 0); | |
a66098da | 2498 | |
2ec610cb LB |
2499 | if (!rc) |
2500 | rc = mwl8k_enable_sniffer(hw, 0); | |
a66098da | 2501 | |
2ec610cb LB |
2502 | mwl8k_fw_unlock(hw); |
2503 | } | |
2504 | ||
2505 | if (rc) { | |
2506 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); | |
2507 | free_irq(priv->pdev->irq, hw); | |
2508 | tasklet_disable(&priv->tx_reclaim_task); | |
2509 | } | |
a66098da LB |
2510 | |
2511 | return rc; | |
2512 | } | |
2513 | ||
a66098da LB |
2514 | static void mwl8k_stop(struct ieee80211_hw *hw) |
2515 | { | |
a66098da LB |
2516 | struct mwl8k_priv *priv = hw->priv; |
2517 | int i; | |
2518 | ||
d3cea0b8 | 2519 | mwl8k_cmd_802_11_radio_disable(hw); |
a66098da LB |
2520 | |
2521 | ieee80211_stop_queues(hw); | |
2522 | ||
a66098da | 2523 | /* Disable interrupts */ |
a66098da | 2524 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2525 | free_irq(priv->pdev->irq, hw); |
2526 | ||
2527 | /* Stop finalize join worker */ | |
2528 | cancel_work_sync(&priv->finalize_join_worker); | |
2529 | if (priv->beacon_skb != NULL) | |
2530 | dev_kfree_skb(priv->beacon_skb); | |
2531 | ||
2532 | /* Stop tx reclaim tasklet */ | |
2533 | tasklet_disable(&priv->tx_reclaim_task); | |
2534 | ||
a66098da LB |
2535 | /* Return all skbs to mac80211 */ |
2536 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2537 | mwl8k_txq_reclaim(hw, i, 1); | |
2538 | } | |
2539 | ||
2540 | static int mwl8k_add_interface(struct ieee80211_hw *hw, | |
2541 | struct ieee80211_if_init_conf *conf) | |
2542 | { | |
2543 | struct mwl8k_priv *priv = hw->priv; | |
2544 | struct mwl8k_vif *mwl8k_vif; | |
2545 | ||
2546 | /* | |
2547 | * We only support one active interface at a time. | |
2548 | */ | |
2549 | if (priv->vif != NULL) | |
2550 | return -EBUSY; | |
2551 | ||
2552 | /* | |
2553 | * We only support managed interfaces for now. | |
2554 | */ | |
240e86ef | 2555 | if (conf->type != NL80211_IFTYPE_STATION) |
a66098da LB |
2556 | return -EINVAL; |
2557 | ||
2558 | /* Clean out driver private area */ | |
2559 | mwl8k_vif = MWL8K_VIF(conf->vif); | |
2560 | memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); | |
2561 | ||
32060e1b LB |
2562 | /* Set and save the mac address */ |
2563 | mwl8k_set_mac_addr(hw, conf->mac_addr); | |
d89173f2 | 2564 | memcpy(mwl8k_vif->mac_addr, conf->mac_addr, ETH_ALEN); |
a66098da LB |
2565 | |
2566 | /* Back pointer to parent config block */ | |
2567 | mwl8k_vif->priv = priv; | |
2568 | ||
2569 | /* Setup initial PHY parameters */ | |
ce9e2e1b | 2570 | memcpy(mwl8k_vif->legacy_rates, |
a66098da LB |
2571 | priv->rates, sizeof(mwl8k_vif->legacy_rates)); |
2572 | mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); | |
2573 | ||
2574 | /* Set Initial sequence number to zero */ | |
2575 | mwl8k_vif->seqno = 0; | |
2576 | ||
2577 | priv->vif = conf->vif; | |
2578 | priv->current_channel = NULL; | |
2579 | ||
2580 | return 0; | |
2581 | } | |
2582 | ||
2583 | static void mwl8k_remove_interface(struct ieee80211_hw *hw, | |
2584 | struct ieee80211_if_init_conf *conf) | |
2585 | { | |
2586 | struct mwl8k_priv *priv = hw->priv; | |
2587 | ||
2588 | if (priv->vif == NULL) | |
2589 | return; | |
2590 | ||
32060e1b LB |
2591 | mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); |
2592 | ||
a66098da LB |
2593 | priv->vif = NULL; |
2594 | } | |
2595 | ||
ee03a932 | 2596 | static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) |
a66098da | 2597 | { |
a66098da LB |
2598 | struct ieee80211_conf *conf = &hw->conf; |
2599 | struct mwl8k_priv *priv = hw->priv; | |
ee03a932 | 2600 | int rc; |
a66098da | 2601 | |
7595d67a LB |
2602 | if (conf->flags & IEEE80211_CONF_IDLE) { |
2603 | mwl8k_cmd_802_11_radio_disable(hw); | |
2604 | priv->current_channel = NULL; | |
ee03a932 | 2605 | return 0; |
7595d67a LB |
2606 | } |
2607 | ||
ee03a932 LB |
2608 | rc = mwl8k_fw_lock(hw); |
2609 | if (rc) | |
2610 | return rc; | |
a66098da | 2611 | |
ee03a932 LB |
2612 | rc = mwl8k_cmd_802_11_radio_enable(hw); |
2613 | if (rc) | |
2614 | goto out; | |
a66098da | 2615 | |
ee03a932 LB |
2616 | rc = mwl8k_cmd_set_rf_channel(hw, conf->channel); |
2617 | if (rc) | |
2618 | goto out; | |
2619 | ||
2620 | priv->current_channel = conf->channel; | |
a66098da LB |
2621 | |
2622 | if (conf->power_level > 18) | |
2623 | conf->power_level = 18; | |
ee03a932 LB |
2624 | rc = mwl8k_cmd_802_11_rf_tx_power(hw, conf->power_level); |
2625 | if (rc) | |
2626 | goto out; | |
a66098da LB |
2627 | |
2628 | if (mwl8k_cmd_mimo_config(hw, 0x7, 0x7)) | |
2629 | rc = -EINVAL; | |
2630 | ||
ee03a932 LB |
2631 | out: |
2632 | mwl8k_fw_unlock(hw); | |
a66098da | 2633 | |
ee03a932 | 2634 | return rc; |
a66098da LB |
2635 | } |
2636 | ||
3a980d0a LB |
2637 | static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, |
2638 | struct ieee80211_vif *vif, | |
2639 | struct ieee80211_bss_conf *info, | |
2640 | u32 changed) | |
a66098da | 2641 | { |
a66098da LB |
2642 | struct mwl8k_priv *priv = hw->priv; |
2643 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3a980d0a LB |
2644 | int rc; |
2645 | ||
2646 | if (changed & BSS_CHANGED_BSSID) | |
2647 | memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); | |
2648 | ||
2649 | if ((changed & BSS_CHANGED_ASSOC) == 0) | |
2650 | return; | |
a66098da | 2651 | |
a66098da LB |
2652 | priv->capture_beacon = false; |
2653 | ||
3a980d0a | 2654 | rc = mwl8k_fw_lock(hw); |
942457d6 | 2655 | if (rc) |
3a980d0a LB |
2656 | return; |
2657 | ||
a66098da LB |
2658 | if (info->assoc) { |
2659 | memcpy(&mwl8k_vif->bss_info, info, | |
2660 | sizeof(struct ieee80211_bss_conf)); | |
2661 | ||
2662 | /* Install rates */ | |
3a980d0a LB |
2663 | rc = mwl8k_update_rateset(hw, vif); |
2664 | if (rc) | |
2665 | goto out; | |
a66098da LB |
2666 | |
2667 | /* Turn on rate adaptation */ | |
3a980d0a LB |
2668 | rc = mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE, |
2669 | MWL8K_UCAST_RATE, NULL); | |
2670 | if (rc) | |
2671 | goto out; | |
a66098da LB |
2672 | |
2673 | /* Set radio preamble */ | |
3a980d0a LB |
2674 | rc = mwl8k_set_radio_preamble(hw, info->use_short_preamble); |
2675 | if (rc) | |
2676 | goto out; | |
a66098da LB |
2677 | |
2678 | /* Set slot time */ | |
3a980d0a LB |
2679 | rc = mwl8k_cmd_set_slot(hw, info->use_short_slot); |
2680 | if (rc) | |
2681 | goto out; | |
a66098da LB |
2682 | |
2683 | /* Update peer rate info */ | |
3a980d0a LB |
2684 | rc = mwl8k_cmd_update_sta_db(hw, vif, |
2685 | MWL8K_STA_DB_MODIFY_ENTRY); | |
2686 | if (rc) | |
2687 | goto out; | |
a66098da LB |
2688 | |
2689 | /* Set AID */ | |
3a980d0a LB |
2690 | rc = mwl8k_cmd_set_aid(hw, vif); |
2691 | if (rc) | |
2692 | goto out; | |
a66098da LB |
2693 | |
2694 | /* | |
2695 | * Finalize the join. Tell rx handler to process | |
2696 | * next beacon from our BSSID. | |
2697 | */ | |
d89173f2 | 2698 | memcpy(priv->capture_bssid, mwl8k_vif->bssid, ETH_ALEN); |
a66098da LB |
2699 | priv->capture_beacon = true; |
2700 | } else { | |
3a980d0a | 2701 | rc = mwl8k_cmd_update_sta_db(hw, vif, MWL8K_STA_DB_DEL_ENTRY); |
a66098da LB |
2702 | memset(&mwl8k_vif->bss_info, 0, |
2703 | sizeof(struct ieee80211_bss_conf)); | |
d89173f2 | 2704 | memset(mwl8k_vif->bssid, 0, ETH_ALEN); |
a66098da LB |
2705 | } |
2706 | ||
3a980d0a LB |
2707 | out: |
2708 | mwl8k_fw_unlock(hw); | |
a66098da LB |
2709 | } |
2710 | ||
e81cd2d6 LB |
2711 | static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw, |
2712 | int mc_count, struct dev_addr_list *mclist) | |
2713 | { | |
2714 | struct mwl8k_cmd_pkt *cmd; | |
2715 | ||
447ced07 LB |
2716 | /* |
2717 | * Synthesize and return a command packet that programs the | |
2718 | * hardware multicast address filter. At this point we don't | |
2719 | * know whether FIF_ALLMULTI is being requested, but if it is, | |
2720 | * we'll end up throwing this packet away and creating a new | |
2721 | * one in mwl8k_configure_filter(). | |
2722 | */ | |
2723 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_count, mclist); | |
e81cd2d6 LB |
2724 | |
2725 | return (unsigned long)cmd; | |
2726 | } | |
2727 | ||
e6935ea1 LB |
2728 | static void mwl8k_configure_filter(struct ieee80211_hw *hw, |
2729 | unsigned int changed_flags, | |
2730 | unsigned int *total_flags, | |
2731 | u64 multicast) | |
2732 | { | |
2733 | struct mwl8k_priv *priv = hw->priv; | |
447ced07 | 2734 | struct mwl8k_cmd_pkt *cmd; |
a66098da | 2735 | |
e6935ea1 | 2736 | /* Clear unsupported feature flags */ |
447ced07 | 2737 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; |
a66098da | 2738 | |
e6935ea1 LB |
2739 | if (mwl8k_fw_lock(hw)) |
2740 | return; | |
a66098da | 2741 | |
e6935ea1 | 2742 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
77165d88 LB |
2743 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) { |
2744 | /* | |
2745 | * Disable the BSS filter. | |
2746 | */ | |
e6935ea1 | 2747 | mwl8k_cmd_set_pre_scan(hw); |
77165d88 | 2748 | } else { |
a94cc97e LB |
2749 | u8 *bssid; |
2750 | ||
77165d88 LB |
2751 | /* |
2752 | * Enable the BSS filter. | |
2753 | * | |
2754 | * If there is an active STA interface, use that | |
2755 | * interface's BSSID, otherwise use a dummy one | |
2756 | * (where the OUI part needs to be nonzero for | |
2757 | * the BSSID to be accepted by POST_SCAN). | |
2758 | */ | |
2759 | bssid = "\x01\x00\x00\x00\x00\x00"; | |
a94cc97e LB |
2760 | if (priv->vif != NULL) |
2761 | bssid = MWL8K_VIF(priv->vif)->bssid; | |
2762 | ||
e6935ea1 | 2763 | mwl8k_cmd_set_post_scan(hw, bssid); |
a66098da LB |
2764 | } |
2765 | } | |
2766 | ||
447ced07 LB |
2767 | cmd = (void *)(unsigned long)multicast; |
2768 | ||
2769 | /* | |
2770 | * If FIF_ALLMULTI is being requested, throw away the command | |
2771 | * packet that ->prepare_multicast() built and replace it with | |
2772 | * a command packet that enables reception of all multicast | |
2773 | * packets. | |
2774 | */ | |
2775 | if (*total_flags & FIF_ALLMULTI) { | |
2776 | kfree(cmd); | |
2777 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, 0, NULL); | |
2778 | } | |
2779 | ||
2780 | if (cmd != NULL) { | |
2781 | mwl8k_post_cmd(hw, cmd); | |
2782 | kfree(cmd); | |
e6935ea1 | 2783 | } |
a66098da | 2784 | |
e6935ea1 | 2785 | mwl8k_fw_unlock(hw); |
a66098da LB |
2786 | } |
2787 | ||
a66098da LB |
2788 | static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
2789 | { | |
733d3067 | 2790 | return mwl8k_rts_threshold(hw, MWL8K_CMD_SET, value); |
a66098da LB |
2791 | } |
2792 | ||
a66098da LB |
2793 | static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
2794 | const struct ieee80211_tx_queue_params *params) | |
2795 | { | |
3e4f542c | 2796 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 2797 | int rc; |
a66098da | 2798 | |
3e4f542c LB |
2799 | rc = mwl8k_fw_lock(hw); |
2800 | if (!rc) { | |
2801 | if (!priv->wmm_enabled) | |
2802 | rc = mwl8k_set_wmm(hw, 1); | |
a66098da | 2803 | |
3e4f542c LB |
2804 | if (!rc) |
2805 | rc = mwl8k_set_edca_params(hw, queue, | |
2806 | params->cw_min, | |
2807 | params->cw_max, | |
2808 | params->aifs, | |
2809 | params->txop); | |
2810 | ||
2811 | mwl8k_fw_unlock(hw); | |
a66098da | 2812 | } |
3e4f542c | 2813 | |
a66098da LB |
2814 | return rc; |
2815 | } | |
2816 | ||
2817 | static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, | |
2818 | struct ieee80211_tx_queue_stats *stats) | |
2819 | { | |
2820 | struct mwl8k_priv *priv = hw->priv; | |
2821 | struct mwl8k_tx_queue *txq; | |
2822 | int index; | |
2823 | ||
2824 | spin_lock_bh(&priv->tx_lock); | |
2825 | for (index = 0; index < MWL8K_TX_QUEUES; index++) { | |
2826 | txq = priv->txq + index; | |
2827 | memcpy(&stats[index], &txq->tx_stats, | |
2828 | sizeof(struct ieee80211_tx_queue_stats)); | |
2829 | } | |
2830 | spin_unlock_bh(&priv->tx_lock); | |
a66098da | 2831 | |
954ef509 | 2832 | return 0; |
a66098da LB |
2833 | } |
2834 | ||
2835 | static int mwl8k_get_stats(struct ieee80211_hw *hw, | |
2836 | struct ieee80211_low_level_stats *stats) | |
2837 | { | |
954ef509 | 2838 | return mwl8k_cmd_802_11_get_stat(hw, stats); |
a66098da LB |
2839 | } |
2840 | ||
2841 | static const struct ieee80211_ops mwl8k_ops = { | |
2842 | .tx = mwl8k_tx, | |
2843 | .start = mwl8k_start, | |
2844 | .stop = mwl8k_stop, | |
2845 | .add_interface = mwl8k_add_interface, | |
2846 | .remove_interface = mwl8k_remove_interface, | |
2847 | .config = mwl8k_config, | |
a66098da | 2848 | .bss_info_changed = mwl8k_bss_info_changed, |
3ac64bee | 2849 | .prepare_multicast = mwl8k_prepare_multicast, |
a66098da LB |
2850 | .configure_filter = mwl8k_configure_filter, |
2851 | .set_rts_threshold = mwl8k_set_rts_threshold, | |
2852 | .conf_tx = mwl8k_conf_tx, | |
2853 | .get_tx_stats = mwl8k_get_tx_stats, | |
2854 | .get_stats = mwl8k_get_stats, | |
2855 | }; | |
2856 | ||
2857 | static void mwl8k_tx_reclaim_handler(unsigned long data) | |
2858 | { | |
2859 | int i; | |
2860 | struct ieee80211_hw *hw = (struct ieee80211_hw *) data; | |
2861 | struct mwl8k_priv *priv = hw->priv; | |
2862 | ||
2863 | spin_lock_bh(&priv->tx_lock); | |
2864 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2865 | mwl8k_txq_reclaim(hw, i, 0); | |
2866 | ||
88de754a | 2867 | if (priv->tx_wait != NULL && !priv->pending_tx_pkts) { |
ce9e2e1b LB |
2868 | complete(priv->tx_wait); |
2869 | priv->tx_wait = NULL; | |
a66098da LB |
2870 | } |
2871 | spin_unlock_bh(&priv->tx_lock); | |
2872 | } | |
2873 | ||
2874 | static void mwl8k_finalize_join_worker(struct work_struct *work) | |
2875 | { | |
2876 | struct mwl8k_priv *priv = | |
2877 | container_of(work, struct mwl8k_priv, finalize_join_worker); | |
2878 | struct sk_buff *skb = priv->beacon_skb; | |
ce9e2e1b | 2879 | u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period; |
a66098da LB |
2880 | |
2881 | mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim); | |
2882 | dev_kfree_skb(skb); | |
2883 | ||
2884 | priv->beacon_skb = NULL; | |
2885 | } | |
2886 | ||
2887 | static int __devinit mwl8k_probe(struct pci_dev *pdev, | |
2888 | const struct pci_device_id *id) | |
2889 | { | |
2aa7b01f | 2890 | static int printed_version = 0; |
a66098da LB |
2891 | struct ieee80211_hw *hw; |
2892 | struct mwl8k_priv *priv; | |
a66098da LB |
2893 | int rc; |
2894 | int i; | |
2aa7b01f LB |
2895 | |
2896 | if (!printed_version) { | |
2897 | printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); | |
2898 | printed_version = 1; | |
2899 | } | |
a66098da LB |
2900 | |
2901 | rc = pci_enable_device(pdev); | |
2902 | if (rc) { | |
2903 | printk(KERN_ERR "%s: Cannot enable new PCI device\n", | |
2904 | MWL8K_NAME); | |
2905 | return rc; | |
2906 | } | |
2907 | ||
2908 | rc = pci_request_regions(pdev, MWL8K_NAME); | |
2909 | if (rc) { | |
2910 | printk(KERN_ERR "%s: Cannot obtain PCI resources\n", | |
2911 | MWL8K_NAME); | |
2912 | return rc; | |
2913 | } | |
2914 | ||
2915 | pci_set_master(pdev); | |
2916 | ||
2917 | hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); | |
2918 | if (hw == NULL) { | |
2919 | printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); | |
2920 | rc = -ENOMEM; | |
2921 | goto err_free_reg; | |
2922 | } | |
2923 | ||
2924 | priv = hw->priv; | |
2925 | priv->hw = hw; | |
2926 | priv->pdev = pdev; | |
0439b1f5 | 2927 | priv->wmm_enabled = false; |
a66098da | 2928 | priv->pending_tx_pkts = 0; |
a66098da | 2929 | |
a66098da LB |
2930 | SET_IEEE80211_DEV(hw, &pdev->dev); |
2931 | pci_set_drvdata(pdev, hw); | |
2932 | ||
2933 | priv->regs = pci_iomap(pdev, 1, 0x10000); | |
2934 | if (priv->regs == NULL) { | |
c2c357ce LB |
2935 | printk(KERN_ERR "%s: Cannot map device memory\n", |
2936 | wiphy_name(hw->wiphy)); | |
a66098da LB |
2937 | goto err_iounmap; |
2938 | } | |
2939 | ||
2940 | memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels)); | |
2941 | priv->band.band = IEEE80211_BAND_2GHZ; | |
2942 | priv->band.channels = priv->channels; | |
2943 | priv->band.n_channels = ARRAY_SIZE(mwl8k_channels); | |
2944 | priv->band.bitrates = priv->rates; | |
2945 | priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates); | |
2946 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
2947 | ||
2948 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates)); | |
2949 | memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates)); | |
2950 | ||
2951 | /* | |
2952 | * Extra headroom is the size of the required DMA header | |
2953 | * minus the size of the smallest 802.11 frame (CTS frame). | |
2954 | */ | |
2955 | hw->extra_tx_headroom = | |
2956 | sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); | |
2957 | ||
2958 | hw->channel_change_time = 10; | |
2959 | ||
2960 | hw->queues = MWL8K_TX_QUEUES; | |
2961 | ||
240e86ef | 2962 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
a66098da LB |
2963 | |
2964 | /* Set rssi and noise values to dBm */ | |
ce9e2e1b | 2965 | hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; |
a66098da LB |
2966 | hw->vif_data_size = sizeof(struct mwl8k_vif); |
2967 | priv->vif = NULL; | |
2968 | ||
2969 | /* Set default radio state and preamble */ | |
c46563b7 | 2970 | priv->radio_on = 0; |
68ce3884 | 2971 | priv->radio_short_preamble = 0; |
a66098da LB |
2972 | |
2973 | /* Finalize join worker */ | |
2974 | INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); | |
2975 | ||
2976 | /* TX reclaim tasklet */ | |
2977 | tasklet_init(&priv->tx_reclaim_task, | |
2978 | mwl8k_tx_reclaim_handler, (unsigned long)hw); | |
2979 | tasklet_disable(&priv->tx_reclaim_task); | |
2980 | ||
a66098da LB |
2981 | /* Power management cookie */ |
2982 | priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); | |
2983 | if (priv->cookie == NULL) | |
2984 | goto err_iounmap; | |
2985 | ||
2986 | rc = mwl8k_rxq_init(hw, 0); | |
2987 | if (rc) | |
2988 | goto err_iounmap; | |
2989 | rxq_refill(hw, 0, INT_MAX); | |
2990 | ||
618952a7 LB |
2991 | mutex_init(&priv->fw_mutex); |
2992 | priv->fw_mutex_owner = NULL; | |
2993 | priv->fw_mutex_depth = 0; | |
618952a7 LB |
2994 | priv->hostcmd_wait = NULL; |
2995 | ||
a66098da LB |
2996 | spin_lock_init(&priv->tx_lock); |
2997 | ||
88de754a LB |
2998 | priv->tx_wait = NULL; |
2999 | ||
a66098da LB |
3000 | for (i = 0; i < MWL8K_TX_QUEUES; i++) { |
3001 | rc = mwl8k_txq_init(hw, i); | |
3002 | if (rc) | |
3003 | goto err_free_queues; | |
3004 | } | |
3005 | ||
3006 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
c23b5a69 | 3007 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3008 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); |
3009 | iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); | |
3010 | ||
3011 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, | |
3012 | IRQF_SHARED, MWL8K_NAME, hw); | |
3013 | if (rc) { | |
3014 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 3015 | wiphy_name(hw->wiphy)); |
a66098da LB |
3016 | goto err_free_queues; |
3017 | } | |
3018 | ||
3019 | /* Reset firmware and hardware */ | |
3020 | mwl8k_hw_reset(priv); | |
3021 | ||
3022 | /* Ask userland hotplug daemon for the device firmware */ | |
3023 | rc = mwl8k_request_firmware(priv, (u32)id->driver_data); | |
3024 | if (rc) { | |
c2c357ce LB |
3025 | printk(KERN_ERR "%s: Firmware files not found\n", |
3026 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3027 | goto err_free_irq; |
3028 | } | |
3029 | ||
3030 | /* Load firmware into hardware */ | |
c2c357ce | 3031 | rc = mwl8k_load_firmware(hw); |
a66098da | 3032 | if (rc) { |
c2c357ce LB |
3033 | printk(KERN_ERR "%s: Cannot start firmware\n", |
3034 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3035 | goto err_stop_firmware; |
3036 | } | |
3037 | ||
3038 | /* Reclaim memory once firmware is successfully loaded */ | |
3039 | mwl8k_release_firmware(priv); | |
3040 | ||
3041 | /* | |
3042 | * Temporarily enable interrupts. Initial firmware host | |
3043 | * commands use interrupts and avoids polling. Disable | |
3044 | * interrupts when done. | |
3045 | */ | |
c23b5a69 | 3046 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3047 | |
3048 | /* Get config data, mac addrs etc */ | |
3049 | rc = mwl8k_cmd_get_hw_spec(hw); | |
3050 | if (rc) { | |
c2c357ce LB |
3051 | printk(KERN_ERR "%s: Cannot initialise firmware\n", |
3052 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3053 | goto err_stop_firmware; |
3054 | } | |
3055 | ||
3056 | /* Turn radio off */ | |
c46563b7 | 3057 | rc = mwl8k_cmd_802_11_radio_disable(hw); |
a66098da | 3058 | if (rc) { |
c2c357ce | 3059 | printk(KERN_ERR "%s: Cannot disable\n", wiphy_name(hw->wiphy)); |
a66098da LB |
3060 | goto err_stop_firmware; |
3061 | } | |
3062 | ||
32060e1b LB |
3063 | /* Clear MAC address */ |
3064 | rc = mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); | |
3065 | if (rc) { | |
3066 | printk(KERN_ERR "%s: Cannot clear MAC address\n", | |
3067 | wiphy_name(hw->wiphy)); | |
3068 | goto err_stop_firmware; | |
3069 | } | |
3070 | ||
a66098da | 3071 | /* Disable interrupts */ |
a66098da | 3072 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3073 | free_irq(priv->pdev->irq, hw); |
3074 | ||
3075 | rc = ieee80211_register_hw(hw); | |
3076 | if (rc) { | |
c2c357ce LB |
3077 | printk(KERN_ERR "%s: Cannot register device\n", |
3078 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3079 | goto err_stop_firmware; |
3080 | } | |
3081 | ||
2aa7b01f LB |
3082 | printk(KERN_INFO "%s: 88w%u v%d, %pM, firmware version %u.%u.%u.%u\n", |
3083 | wiphy_name(hw->wiphy), priv->part_num, priv->hw_rev, | |
3084 | hw->wiphy->perm_addr, | |
3085 | (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff, | |
3086 | (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff); | |
a66098da LB |
3087 | |
3088 | return 0; | |
3089 | ||
3090 | err_stop_firmware: | |
3091 | mwl8k_hw_reset(priv); | |
3092 | mwl8k_release_firmware(priv); | |
3093 | ||
3094 | err_free_irq: | |
a66098da | 3095 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3096 | free_irq(priv->pdev->irq, hw); |
3097 | ||
3098 | err_free_queues: | |
3099 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3100 | mwl8k_txq_deinit(hw, i); | |
3101 | mwl8k_rxq_deinit(hw, 0); | |
3102 | ||
3103 | err_iounmap: | |
3104 | if (priv->cookie != NULL) | |
3105 | pci_free_consistent(priv->pdev, 4, | |
3106 | priv->cookie, priv->cookie_dma); | |
3107 | ||
3108 | if (priv->regs != NULL) | |
3109 | pci_iounmap(pdev, priv->regs); | |
3110 | ||
a66098da LB |
3111 | pci_set_drvdata(pdev, NULL); |
3112 | ieee80211_free_hw(hw); | |
3113 | ||
3114 | err_free_reg: | |
3115 | pci_release_regions(pdev); | |
3116 | pci_disable_device(pdev); | |
3117 | ||
3118 | return rc; | |
3119 | } | |
3120 | ||
230f7af0 | 3121 | static void __devexit mwl8k_shutdown(struct pci_dev *pdev) |
a66098da LB |
3122 | { |
3123 | printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); | |
3124 | } | |
3125 | ||
230f7af0 | 3126 | static void __devexit mwl8k_remove(struct pci_dev *pdev) |
a66098da LB |
3127 | { |
3128 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
3129 | struct mwl8k_priv *priv; | |
3130 | int i; | |
3131 | ||
3132 | if (hw == NULL) | |
3133 | return; | |
3134 | priv = hw->priv; | |
3135 | ||
3136 | ieee80211_stop_queues(hw); | |
3137 | ||
60aa569f LB |
3138 | ieee80211_unregister_hw(hw); |
3139 | ||
a66098da LB |
3140 | /* Remove tx reclaim tasklet */ |
3141 | tasklet_kill(&priv->tx_reclaim_task); | |
3142 | ||
a66098da LB |
3143 | /* Stop hardware */ |
3144 | mwl8k_hw_reset(priv); | |
3145 | ||
3146 | /* Return all skbs to mac80211 */ | |
3147 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3148 | mwl8k_txq_reclaim(hw, i, 1); | |
3149 | ||
a66098da LB |
3150 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
3151 | mwl8k_txq_deinit(hw, i); | |
3152 | ||
3153 | mwl8k_rxq_deinit(hw, 0); | |
3154 | ||
c2c357ce | 3155 | pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); |
a66098da LB |
3156 | |
3157 | pci_iounmap(pdev, priv->regs); | |
3158 | pci_set_drvdata(pdev, NULL); | |
3159 | ieee80211_free_hw(hw); | |
3160 | pci_release_regions(pdev); | |
3161 | pci_disable_device(pdev); | |
3162 | } | |
3163 | ||
3164 | static struct pci_driver mwl8k_driver = { | |
3165 | .name = MWL8K_NAME, | |
3166 | .id_table = mwl8k_table, | |
3167 | .probe = mwl8k_probe, | |
3168 | .remove = __devexit_p(mwl8k_remove), | |
3169 | .shutdown = __devexit_p(mwl8k_shutdown), | |
3170 | }; | |
3171 | ||
3172 | static int __init mwl8k_init(void) | |
3173 | { | |
3174 | return pci_register_driver(&mwl8k_driver); | |
3175 | } | |
3176 | ||
3177 | static void __exit mwl8k_exit(void) | |
3178 | { | |
3179 | pci_unregister_driver(&mwl8k_driver); | |
3180 | } | |
3181 | ||
3182 | module_init(mwl8k_init); | |
3183 | module_exit(mwl8k_exit); | |
c2c357ce LB |
3184 | |
3185 | MODULE_DESCRIPTION(MWL8K_DESC); | |
3186 | MODULE_VERSION(MWL8K_VERSION); | |
3187 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>"); | |
3188 | MODULE_LICENSE("GPL"); |