1#include "cmd.h"
2
3#include <linux/module.h>
4#include <linux/slab.h>
5#include <linux/crc7.h>
6
7#include "wl1251.h"
8#include "reg.h"
9#include "io.h"
10#include "ps.h"
11#include "acx.h"
12
13
14
15
16
17
18
19
20
21int wl1251_cmd_send(struct wl1251 *wl, u16 id, void *buf, size_t len)
22{
23 struct wl1251_cmd_header *cmd;
24 unsigned long timeout;
25 u32 intr;
26 int ret = 0;
27
28 cmd = buf;
29 cmd->id = id;
30 cmd->status = 0;
31
32 WARN_ON(len % 4 != 0);
33
34 wl1251_mem_write(wl, wl->cmd_box_addr, buf, len);
35
36 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
37
38 timeout = jiffies + msecs_to_jiffies(WL1251_COMMAND_TIMEOUT);
39
40 intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
41 while (!(intr & WL1251_ACX_INTR_CMD_COMPLETE)) {
42 if (time_after(jiffies, timeout)) {
43 wl1251_error("command complete timeout");
44 ret = -ETIMEDOUT;
45 goto out;
46 }
47
48 msleep(1);
49
50 intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
51 }
52
53 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
54 WL1251_ACX_INTR_CMD_COMPLETE);
55
56out:
57 return ret;
58}
59
60
61
62
63
64
65
66
67
68int wl1251_cmd_test(struct wl1251 *wl, void *buf, size_t buf_len, u8 answer)
69{
70 int ret;
71
72 wl1251_debug(DEBUG_CMD, "cmd test");
73
74 ret = wl1251_cmd_send(wl, CMD_TEST, buf, buf_len);
75
76 if (ret < 0) {
77 wl1251_warning("TEST command failed");
78 return ret;
79 }
80
81 if (answer) {
82 struct wl1251_command *cmd_answer;
83
84
85
86
87
88
89 wl1251_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
90
91 cmd_answer = buf;
92
93 if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
94 wl1251_error("TEST command answer error: %d",
95 cmd_answer->header.status);
96 }
97
98 return 0;
99}
100
101
102
103
104
105
106
107
108
109int wl1251_cmd_interrogate(struct wl1251 *wl, u16 id, void *buf, size_t len)
110{
111 struct acx_header *acx = buf;
112 int ret;
113
114 wl1251_debug(DEBUG_CMD, "cmd interrogate");
115
116 acx->id = id;
117
118
119 acx->len = len - sizeof(*acx);
120
121 ret = wl1251_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
122 if (ret < 0) {
123 wl1251_error("INTERROGATE command failed");
124 goto out;
125 }
126
127
128 wl1251_mem_read(wl, wl->cmd_box_addr, buf, len);
129
130 acx = buf;
131 if (acx->cmd.status != CMD_STATUS_SUCCESS)
132 wl1251_error("INTERROGATE command error: %d",
133 acx->cmd.status);
134
135out:
136 return ret;
137}
138
139
140
141
142
143
144
145
146
147int wl1251_cmd_configure(struct wl1251 *wl, u16 id, void *buf, size_t len)
148{
149 struct acx_header *acx = buf;
150 int ret;
151
152 wl1251_debug(DEBUG_CMD, "cmd configure");
153
154 acx->id = id;
155
156
157 acx->len = len - sizeof(*acx);
158
159 ret = wl1251_cmd_send(wl, CMD_CONFIGURE, acx, len);
160 if (ret < 0) {
161 wl1251_warning("CONFIGURE command NOK");
162 return ret;
163 }
164
165 return 0;
166}
167
168int wl1251_cmd_vbm(struct wl1251 *wl, u8 identity,
169 void *bitmap, u16 bitmap_len, u8 bitmap_control)
170{
171 struct wl1251_cmd_vbm_update *vbm;
172 int ret;
173
174 wl1251_debug(DEBUG_CMD, "cmd vbm");
175
176 vbm = kzalloc(sizeof(*vbm), GFP_KERNEL);
177 if (!vbm) {
178 ret = -ENOMEM;
179 goto out;
180 }
181
182
183 vbm->tim.bitmap_ctrl = bitmap_control;
184 if (bitmap_len > PARTIAL_VBM_MAX) {
185 wl1251_warning("cmd vbm len is %d B, truncating to %d",
186 bitmap_len, PARTIAL_VBM_MAX);
187 bitmap_len = PARTIAL_VBM_MAX;
188 }
189 memcpy(vbm->tim.pvb_field, bitmap, bitmap_len);
190 vbm->tim.identity = identity;
191 vbm->tim.length = bitmap_len + 3;
192
193 vbm->len = cpu_to_le16(bitmap_len + 5);
194
195 ret = wl1251_cmd_send(wl, CMD_VBM, vbm, sizeof(*vbm));
196 if (ret < 0) {
197 wl1251_error("VBM command failed");
198 goto out;
199 }
200
201out:
202 kfree(vbm);
203 return ret;
204}
205
206int wl1251_cmd_data_path(struct wl1251 *wl, u8 channel, bool enable)
207{
208 struct cmd_enabledisable_path *cmd;
209 int ret;
210 u16 cmd_rx, cmd_tx;
211
212 wl1251_debug(DEBUG_CMD, "cmd data path");
213
214 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
215 if (!cmd) {
216 ret = -ENOMEM;
217 goto out;
218 }
219
220 cmd->channel = channel;
221
222 if (enable) {
223 cmd_rx = CMD_ENABLE_RX;
224 cmd_tx = CMD_ENABLE_TX;
225 } else {
226 cmd_rx = CMD_DISABLE_RX;
227 cmd_tx = CMD_DISABLE_TX;
228 }
229
230 ret = wl1251_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
231 if (ret < 0) {
232 wl1251_error("rx %s cmd for channel %d failed",
233 enable ? "start" : "stop", channel);
234 goto out;
235 }
236
237 wl1251_debug(DEBUG_BOOT, "rx %s cmd channel %d",
238 enable ? "start" : "stop", channel);
239
240 ret = wl1251_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
241 if (ret < 0) {
242 wl1251_error("tx %s cmd for channel %d failed",
243 enable ? "start" : "stop", channel);
244 goto out;
245 }
246
247 wl1251_debug(DEBUG_BOOT, "tx %s cmd channel %d",
248 enable ? "start" : "stop", channel);
249
250out:
251 kfree(cmd);
252 return ret;
253}
254
255int wl1251_cmd_join(struct wl1251 *wl, u8 bss_type, u8 channel,
256 u16 beacon_interval, u8 dtim_interval)
257{
258 struct cmd_join *join;
259 int ret, i;
260 u8 *bssid;
261
262 join = kzalloc(sizeof(*join), GFP_KERNEL);
263 if (!join) {
264 ret = -ENOMEM;
265 goto out;
266 }
267
268 wl1251_debug(DEBUG_CMD, "cmd join%s ch %d %d/%d",
269 bss_type == BSS_TYPE_IBSS ? " ibss" : "",
270 channel, beacon_interval, dtim_interval);
271
272
273 bssid = (u8 *) &join->bssid_lsb;
274 for (i = 0; i < ETH_ALEN; i++)
275 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
276
277 join->rx_config_options = wl->rx_config;
278 join->rx_filter_options = wl->rx_filter;
279
280 join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
281 RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
282
283 join->beacon_interval = beacon_interval;
284 join->dtim_interval = dtim_interval;
285 join->bss_type = bss_type;
286 join->channel = channel;
287 join->ctrl = JOIN_CMD_CTRL_TX_FLUSH;
288
289 ret = wl1251_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
290 if (ret < 0) {
291 wl1251_error("failed to initiate cmd join");
292 goto out;
293 }
294
295out:
296 kfree(join);
297 return ret;
298}
299
300int wl1251_cmd_ps_mode(struct wl1251 *wl, u8 ps_mode)
301{
302 struct wl1251_cmd_ps_params *ps_params = NULL;
303 int ret = 0;
304
305 wl1251_debug(DEBUG_CMD, "cmd set ps mode");
306
307 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
308 if (!ps_params) {
309 ret = -ENOMEM;
310 goto out;
311 }
312
313 ps_params->ps_mode = ps_mode;
314 ps_params->send_null_data = 1;
315 ps_params->retries = 5;
316 ps_params->hang_over_period = 128;
317 ps_params->null_data_rate = 1;
318
319 ret = wl1251_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
320 sizeof(*ps_params));
321 if (ret < 0) {
322 wl1251_error("cmd set_ps_mode failed");
323 goto out;
324 }
325
326out:
327 kfree(ps_params);
328 return ret;
329}
330
331int wl1251_cmd_read_memory(struct wl1251 *wl, u32 addr, void *answer,
332 size_t len)
333{
334 struct cmd_read_write_memory *cmd;
335 int ret = 0;
336
337 wl1251_debug(DEBUG_CMD, "cmd read memory");
338
339 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
340 if (!cmd) {
341 ret = -ENOMEM;
342 goto out;
343 }
344
345 WARN_ON(len > MAX_READ_SIZE);
346 len = min_t(size_t, len, MAX_READ_SIZE);
347
348 cmd->addr = addr;
349 cmd->size = len;
350
351 ret = wl1251_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
352 if (ret < 0) {
353 wl1251_error("read memory command failed: %d", ret);
354 goto out;
355 }
356
357
358 wl1251_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
359
360 if (cmd->header.status != CMD_STATUS_SUCCESS)
361 wl1251_error("error in read command result: %d",
362 cmd->header.status);
363
364 memcpy(answer, cmd->value, len);
365
366out:
367 kfree(cmd);
368 return ret;
369}
370
371int wl1251_cmd_template_set(struct wl1251 *wl, u16 cmd_id,
372 void *buf, size_t buf_len)
373{
374 struct wl1251_cmd_packet_template *cmd;
375 size_t cmd_len;
376 int ret = 0;
377
378 wl1251_debug(DEBUG_CMD, "cmd template %d", cmd_id);
379
380 WARN_ON(buf_len > WL1251_MAX_TEMPLATE_SIZE);
381 buf_len = min_t(size_t, buf_len, WL1251_MAX_TEMPLATE_SIZE);
382 cmd_len = ALIGN(sizeof(*cmd) + buf_len, 4);
383
384 cmd = kzalloc(cmd_len, GFP_KERNEL);
385 if (!cmd) {
386 ret = -ENOMEM;
387 goto out;
388 }
389
390 cmd->size = cpu_to_le16(buf_len);
391
392 if (buf)
393 memcpy(cmd->data, buf, buf_len);
394
395 ret = wl1251_cmd_send(wl, cmd_id, cmd, cmd_len);
396 if (ret < 0) {
397 wl1251_warning("cmd set_template failed: %d", ret);
398 goto out;
399 }
400
401out:
402 kfree(cmd);
403 return ret;
404}
405
406int wl1251_cmd_scan(struct wl1251 *wl, u8 *ssid, size_t ssid_len,
407 struct ieee80211_channel *channels[],
408 unsigned int n_channels, unsigned int n_probes)
409{
410 struct wl1251_cmd_scan *cmd;
411 int i, ret = 0;
412
413 wl1251_debug(DEBUG_CMD, "cmd scan");
414
415 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
416 if (!cmd)
417 return -ENOMEM;
418
419 cmd->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
420 cmd->params.rx_filter_options = cpu_to_le32(CFG_RX_PRSP_EN |
421 CFG_RX_MGMT_EN |
422 CFG_RX_BCN_EN);
423 cmd->params.scan_options = 0;
424 cmd->params.num_channels = n_channels;
425 cmd->params.num_probe_requests = n_probes;
426 cmd->params.tx_rate = cpu_to_le16(1 << 1);
427 cmd->params.tid_trigger = 0;
428
429 for (i = 0; i < n_channels; i++) {
430 cmd->channels[i].min_duration =
431 cpu_to_le32(WL1251_SCAN_MIN_DURATION);
432 cmd->channels[i].max_duration =
433 cpu_to_le32(WL1251_SCAN_MAX_DURATION);
434 memset(&cmd->channels[i].bssid_lsb, 0xff, 4);
435 memset(&cmd->channels[i].bssid_msb, 0xff, 2);
436 cmd->channels[i].early_termination = 0;
437 cmd->channels[i].tx_power_att = 0;
438 cmd->channels[i].channel = channels[i]->hw_value;
439 }
440
441 cmd->params.ssid_len = ssid_len;
442 if (ssid)
443 memcpy(cmd->params.ssid, ssid, ssid_len);
444
445 ret = wl1251_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd));
446 if (ret < 0) {
447 wl1251_error("cmd scan failed: %d", ret);
448 goto out;
449 }
450
451 wl1251_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
452
453 if (cmd->header.status != CMD_STATUS_SUCCESS) {
454 wl1251_error("cmd scan status wasn't success: %d",
455 cmd->header.status);
456 ret = -EIO;
457 goto out;
458 }
459
460out:
461 kfree(cmd);
462 return ret;
463}
464
465int wl1251_cmd_trigger_scan_to(struct wl1251 *wl, u32 timeout)
466{
467 struct wl1251_cmd_trigger_scan_to *cmd;
468 int ret;
469
470 wl1251_debug(DEBUG_CMD, "cmd trigger scan to");
471
472 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
473 if (!cmd)
474 return -ENOMEM;
475
476 cmd->timeout = timeout;
477
478 ret = wl1251_cmd_send(wl, CMD_TRIGGER_SCAN_TO, cmd, sizeof(*cmd));
479 if (ret < 0) {
480 wl1251_error("cmd trigger scan to failed: %d", ret);
481 goto out;
482 }
483
484out:
485 kfree(cmd);
486 return ret;
487}
488
