This source file includes following definitions.
- wl1251_cmd_send
- wl1251_cmd_test
- wl1251_cmd_interrogate
- wl1251_cmd_configure
- wl1251_cmd_vbm
- wl1251_cmd_data_path_rx
- wl1251_cmd_data_path_tx
- wl1251_cmd_join
- wl1251_cmd_ps_mode
- wl1251_cmd_read_memory
- wl1251_cmd_template_set
- wl1251_cmd_scan
- wl1251_cmd_trigger_scan_to
1
2 #include "cmd.h"
3
4 #include <linux/module.h>
5 #include <linux/slab.h>
6 #include <linux/etherdevice.h>
7
8 #include "wl1251.h"
9 #include "reg.h"
10 #include "io.h"
11 #include "ps.h"
12 #include "acx.h"
13
14
15
16
17
18
19
20
21
22 int wl1251_cmd_send(struct wl1251 *wl, u16 id, void *buf, size_t len)
23 {
24 struct wl1251_cmd_header *cmd;
25 unsigned long timeout;
26 u32 intr;
27 int ret = 0;
28
29 cmd = buf;
30 cmd->id = id;
31 cmd->status = 0;
32
33 WARN_ON(len % 4 != 0);
34
35 wl1251_mem_write(wl, wl->cmd_box_addr, buf, len);
36
37 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
38
39 timeout = jiffies + msecs_to_jiffies(WL1251_COMMAND_TIMEOUT);
40
41 intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
42 while (!(intr & WL1251_ACX_INTR_CMD_COMPLETE)) {
43 if (time_after(jiffies, timeout)) {
44 wl1251_error("command complete timeout");
45 ret = -ETIMEDOUT;
46 goto out;
47 }
48
49 msleep(1);
50
51 intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
52 }
53
54 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
55 WL1251_ACX_INTR_CMD_COMPLETE);
56
57 out:
58 return ret;
59 }
60
61
62
63
64
65
66
67
68
69 int wl1251_cmd_test(struct wl1251 *wl, void *buf, size_t buf_len, u8 answer)
70 {
71 int ret;
72
73 wl1251_debug(DEBUG_CMD, "cmd test");
74
75 ret = wl1251_cmd_send(wl, CMD_TEST, buf, buf_len);
76
77 if (ret < 0) {
78 wl1251_warning("TEST command failed");
79 return ret;
80 }
81
82 if (answer) {
83 struct wl1251_command *cmd_answer;
84
85
86
87
88
89
90 wl1251_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
91
92 cmd_answer = buf;
93
94 if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
95 wl1251_error("TEST command answer error: %d",
96 cmd_answer->header.status);
97 }
98
99 return 0;
100 }
101
102
103
104
105
106
107
108
109
110 int wl1251_cmd_interrogate(struct wl1251 *wl, u16 id, void *buf, size_t len)
111 {
112 struct acx_header *acx = buf;
113 int ret;
114
115 wl1251_debug(DEBUG_CMD, "cmd interrogate");
116
117 acx->id = id;
118
119
120 acx->len = len - sizeof(*acx);
121
122 ret = wl1251_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
123 if (ret < 0) {
124 wl1251_error("INTERROGATE command failed");
125 goto out;
126 }
127
128
129 wl1251_mem_read(wl, wl->cmd_box_addr, buf, len);
130
131 acx = buf;
132 if (acx->cmd.status != CMD_STATUS_SUCCESS)
133 wl1251_error("INTERROGATE command error: %d",
134 acx->cmd.status);
135
136 out:
137 return ret;
138 }
139
140
141
142
143
144
145
146
147
148 int wl1251_cmd_configure(struct wl1251 *wl, u16 id, void *buf, size_t len)
149 {
150 struct acx_header *acx = buf;
151 int ret;
152
153 wl1251_debug(DEBUG_CMD, "cmd configure");
154
155 acx->id = id;
156
157
158 acx->len = len - sizeof(*acx);
159
160 ret = wl1251_cmd_send(wl, CMD_CONFIGURE, acx, len);
161 if (ret < 0) {
162 wl1251_warning("CONFIGURE command NOK");
163 return ret;
164 }
165
166 return 0;
167 }
168
169 int wl1251_cmd_vbm(struct wl1251 *wl, u8 identity,
170 void *bitmap, u16 bitmap_len, u8 bitmap_control)
171 {
172 struct wl1251_cmd_vbm_update *vbm;
173 int ret;
174
175 wl1251_debug(DEBUG_CMD, "cmd vbm");
176
177 vbm = kzalloc(sizeof(*vbm), GFP_KERNEL);
178 if (!vbm) {
179 ret = -ENOMEM;
180 goto out;
181 }
182
183
184 vbm->tim.bitmap_ctrl = bitmap_control;
185 if (bitmap_len > PARTIAL_VBM_MAX) {
186 wl1251_warning("cmd vbm len is %d B, truncating to %d",
187 bitmap_len, PARTIAL_VBM_MAX);
188 bitmap_len = PARTIAL_VBM_MAX;
189 }
190 memcpy(vbm->tim.pvb_field, bitmap, bitmap_len);
191 vbm->tim.identity = identity;
192 vbm->tim.length = bitmap_len + 3;
193
194 vbm->len = cpu_to_le16(bitmap_len + 5);
195
196 ret = wl1251_cmd_send(wl, CMD_VBM, vbm, sizeof(*vbm));
197 if (ret < 0) {
198 wl1251_error("VBM command failed");
199 goto out;
200 }
201
202 out:
203 kfree(vbm);
204 return ret;
205 }
206
207 int wl1251_cmd_data_path_rx(struct wl1251 *wl, u8 channel, bool enable)
208 {
209 struct cmd_enabledisable_path *cmd;
210 int ret;
211 u16 cmd_rx;
212
213 wl1251_debug(DEBUG_CMD, "cmd data path");
214
215 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
216 if (!cmd) {
217 ret = -ENOMEM;
218 goto out;
219 }
220
221 cmd->channel = channel;
222
223 if (enable)
224 cmd_rx = CMD_ENABLE_RX;
225 else
226 cmd_rx = CMD_DISABLE_RX;
227
228 ret = wl1251_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
229 if (ret < 0) {
230 wl1251_error("rx %s cmd for channel %d failed",
231 enable ? "start" : "stop", channel);
232 goto out;
233 }
234
235 wl1251_debug(DEBUG_BOOT, "rx %s cmd channel %d",
236 enable ? "start" : "stop", channel);
237
238 out:
239 kfree(cmd);
240 return ret;
241 }
242
243 int wl1251_cmd_data_path_tx(struct wl1251 *wl, u8 channel, bool enable)
244 {
245 struct cmd_enabledisable_path *cmd;
246 int ret;
247 u16 cmd_tx;
248
249 wl1251_debug(DEBUG_CMD, "cmd data path");
250
251 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
252 if (!cmd)
253 return -ENOMEM;
254
255 cmd->channel = channel;
256
257 if (enable)
258 cmd_tx = CMD_ENABLE_TX;
259 else
260 cmd_tx = CMD_DISABLE_TX;
261
262 ret = wl1251_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
263 if (ret < 0)
264 wl1251_error("tx %s cmd for channel %d failed",
265 enable ? "start" : "stop", channel);
266 else
267 wl1251_debug(DEBUG_BOOT, "tx %s cmd channel %d",
268 enable ? "start" : "stop", channel);
269
270 kfree(cmd);
271 return ret;
272 }
273
274 int wl1251_cmd_join(struct wl1251 *wl, u8 bss_type, u8 channel,
275 u16 beacon_interval, u8 dtim_interval)
276 {
277 struct cmd_join *join;
278 int ret, i;
279 u8 *bssid;
280
281 join = kzalloc(sizeof(*join), GFP_KERNEL);
282 if (!join) {
283 ret = -ENOMEM;
284 goto out;
285 }
286
287 wl1251_debug(DEBUG_CMD, "cmd join%s ch %d %d/%d",
288 bss_type == BSS_TYPE_IBSS ? " ibss" : "",
289 channel, beacon_interval, dtim_interval);
290
291
292 bssid = (u8 *) &join->bssid_lsb;
293 for (i = 0; i < ETH_ALEN; i++)
294 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
295
296 join->rx_config_options = wl->rx_config;
297 join->rx_filter_options = wl->rx_filter;
298
299 join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
300 RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
301
302 join->beacon_interval = beacon_interval;
303 join->dtim_interval = dtim_interval;
304 join->bss_type = bss_type;
305 join->channel = channel;
306 join->ctrl = JOIN_CMD_CTRL_TX_FLUSH;
307
308 ret = wl1251_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
309 if (ret < 0) {
310 wl1251_error("failed to initiate cmd join");
311 goto out;
312 }
313
314 out:
315 kfree(join);
316 return ret;
317 }
318
319 int wl1251_cmd_ps_mode(struct wl1251 *wl, u8 ps_mode)
320 {
321 struct wl1251_cmd_ps_params *ps_params = NULL;
322 int ret = 0;
323
324 wl1251_debug(DEBUG_CMD, "cmd set ps mode");
325
326 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
327 if (!ps_params) {
328 ret = -ENOMEM;
329 goto out;
330 }
331
332 ps_params->ps_mode = ps_mode;
333 ps_params->send_null_data = 1;
334 ps_params->retries = 5;
335 ps_params->hang_over_period = 128;
336 ps_params->null_data_rate = 1;
337
338 ret = wl1251_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
339 sizeof(*ps_params));
340 if (ret < 0) {
341 wl1251_error("cmd set_ps_mode failed");
342 goto out;
343 }
344
345 out:
346 kfree(ps_params);
347 return ret;
348 }
349
350 int wl1251_cmd_read_memory(struct wl1251 *wl, u32 addr, void *answer,
351 size_t len)
352 {
353 struct cmd_read_write_memory *cmd;
354 int ret = 0;
355
356 wl1251_debug(DEBUG_CMD, "cmd read memory");
357
358 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
359 if (!cmd) {
360 ret = -ENOMEM;
361 goto out;
362 }
363
364 WARN_ON(len > MAX_READ_SIZE);
365 len = min_t(size_t, len, MAX_READ_SIZE);
366
367 cmd->addr = addr;
368 cmd->size = len;
369
370 ret = wl1251_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
371 if (ret < 0) {
372 wl1251_error("read memory command failed: %d", ret);
373 goto out;
374 }
375
376
377 wl1251_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
378
379 if (cmd->header.status != CMD_STATUS_SUCCESS)
380 wl1251_error("error in read command result: %d",
381 cmd->header.status);
382
383 memcpy(answer, cmd->value, len);
384
385 out:
386 kfree(cmd);
387 return ret;
388 }
389
390 int wl1251_cmd_template_set(struct wl1251 *wl, u16 cmd_id,
391 void *buf, size_t buf_len)
392 {
393 struct wl1251_cmd_packet_template *cmd;
394 size_t cmd_len;
395 int ret = 0;
396
397 wl1251_debug(DEBUG_CMD, "cmd template %d", cmd_id);
398
399 WARN_ON(buf_len > WL1251_MAX_TEMPLATE_SIZE);
400 buf_len = min_t(size_t, buf_len, WL1251_MAX_TEMPLATE_SIZE);
401 cmd_len = ALIGN(sizeof(*cmd) + buf_len, 4);
402
403 cmd = kzalloc(cmd_len, GFP_KERNEL);
404 if (!cmd) {
405 ret = -ENOMEM;
406 goto out;
407 }
408
409 cmd->size = cpu_to_le16(buf_len);
410
411 if (buf)
412 memcpy(cmd->data, buf, buf_len);
413
414 ret = wl1251_cmd_send(wl, cmd_id, cmd, cmd_len);
415 if (ret < 0) {
416 wl1251_warning("cmd set_template failed: %d", ret);
417 goto out;
418 }
419
420 out:
421 kfree(cmd);
422 return ret;
423 }
424
425 int wl1251_cmd_scan(struct wl1251 *wl, u8 *ssid, size_t ssid_len,
426 struct ieee80211_channel *channels[],
427 unsigned int n_channels, unsigned int n_probes)
428 {
429 struct wl1251_cmd_scan *cmd;
430 int i, ret = 0;
431
432 wl1251_debug(DEBUG_CMD, "cmd scan channels %d", n_channels);
433
434 WARN_ON(n_channels > SCAN_MAX_NUM_OF_CHANNELS);
435
436 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
437 if (!cmd)
438 return -ENOMEM;
439
440 cmd->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
441 cmd->params.rx_filter_options = cpu_to_le32(CFG_RX_PRSP_EN |
442 CFG_RX_MGMT_EN |
443 CFG_RX_BCN_EN);
444 cmd->params.scan_options = 0;
445
446
447
448
449
450 if (is_zero_ether_addr(wl->bssid))
451 cmd->params.scan_options |= cpu_to_le16(WL1251_SCAN_OPT_PRIORITY_HIGH);
452 cmd->params.num_channels = n_channels;
453 cmd->params.num_probe_requests = n_probes;
454 cmd->params.tx_rate = cpu_to_le16(1 << 1);
455 cmd->params.tid_trigger = 0;
456
457 for (i = 0; i < n_channels; i++) {
458 cmd->channels[i].min_duration =
459 cpu_to_le32(WL1251_SCAN_MIN_DURATION);
460 cmd->channels[i].max_duration =
461 cpu_to_le32(WL1251_SCAN_MAX_DURATION);
462 memset(&cmd->channels[i].bssid_lsb, 0xff, 4);
463 memset(&cmd->channels[i].bssid_msb, 0xff, 2);
464 cmd->channels[i].early_termination = 0;
465 cmd->channels[i].tx_power_att = 0;
466 cmd->channels[i].channel = channels[i]->hw_value;
467 }
468
469 cmd->params.ssid_len = ssid_len;
470 if (ssid)
471 memcpy(cmd->params.ssid, ssid, ssid_len);
472
473 ret = wl1251_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd));
474 if (ret < 0) {
475 wl1251_error("cmd scan failed: %d", ret);
476 goto out;
477 }
478
479 wl1251_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
480
481 if (cmd->header.status != CMD_STATUS_SUCCESS) {
482 wl1251_error("cmd scan status wasn't success: %d",
483 cmd->header.status);
484 ret = -EIO;
485 goto out;
486 }
487
488 out:
489 kfree(cmd);
490 return ret;
491 }
492
493 int wl1251_cmd_trigger_scan_to(struct wl1251 *wl, u32 timeout)
494 {
495 struct wl1251_cmd_trigger_scan_to *cmd;
496 int ret;
497
498 wl1251_debug(DEBUG_CMD, "cmd trigger scan to");
499
500 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
501 if (!cmd)
502 return -ENOMEM;
503
504 cmd->timeout = timeout;
505
506 ret = wl1251_cmd_send(wl, CMD_TRIGGER_SCAN_TO, cmd, sizeof(*cmd));
507 if (ret < 0) {
508 wl1251_error("cmd trigger scan to failed: %d", ret);
509 goto out;
510 }
511
512 out:
513 kfree(cmd);
514 return ret;
515 }