3 #include <linux/module.h>
4 #include <linux/slab.h>
5 #include <linux/etherdevice.h>
14 * send command to firmware
18 * @buf: buffer containing the command, must work with dma
19 * @len: length of the buffer
21 int wl1251_cmd_send(struct wl1251 *wl, u16 id, void *buf, size_t len)
23 struct wl1251_cmd_header *cmd;
24 unsigned long timeout;
32 WARN_ON(len % 4 != 0);
34 wl1251_mem_write(wl, wl->cmd_box_addr, buf, len);
36 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
38 timeout = jiffies + msecs_to_jiffies(WL1251_COMMAND_TIMEOUT);
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");
50 intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
53 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
54 WL1251_ACX_INTR_CMD_COMPLETE);
61 * send test command to firmware
64 * @buf: buffer containing the command, with all headers, must work with dma
65 * @len: length of the buffer
66 * @answer: is answer needed
68 int wl1251_cmd_test(struct wl1251 *wl, void *buf, size_t buf_len, u8 answer)
72 wl1251_debug(DEBUG_CMD, "cmd test");
74 ret = wl1251_cmd_send(wl, CMD_TEST, buf, buf_len);
77 wl1251_warning("TEST command failed");
82 struct wl1251_command *cmd_answer;
85 * The test command got in, we can read the answer.
86 * The answer would be a wl1251_command, where the
87 * parameter array contains the actual answer.
89 wl1251_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
93 if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
94 wl1251_error("TEST command answer error: %d",
95 cmd_answer->header.status);
102 * read acx from firmware
106 * @buf: buffer for the response, including all headers, must work with dma
107 * @len: length of buf
109 int wl1251_cmd_interrogate(struct wl1251 *wl, u16 id, void *buf, size_t len)
111 struct acx_header *acx = buf;
114 wl1251_debug(DEBUG_CMD, "cmd interrogate");
118 /* payload length, does not include any headers */
119 acx->len = len - sizeof(*acx);
121 ret = wl1251_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
123 wl1251_error("INTERROGATE command failed");
127 /* the interrogate command got in, we can read the answer */
128 wl1251_mem_read(wl, wl->cmd_box_addr, buf, len);
131 if (acx->cmd.status != CMD_STATUS_SUCCESS)
132 wl1251_error("INTERROGATE command error: %d",
140 * write acx value to firmware
144 * @buf: buffer containing acx, including all headers, must work with dma
145 * @len: length of buf
147 int wl1251_cmd_configure(struct wl1251 *wl, u16 id, void *buf, size_t len)
149 struct acx_header *acx = buf;
152 wl1251_debug(DEBUG_CMD, "cmd configure");
156 /* payload length, does not include any headers */
157 acx->len = len - sizeof(*acx);
159 ret = wl1251_cmd_send(wl, CMD_CONFIGURE, acx, len);
161 wl1251_warning("CONFIGURE command NOK");
168 int wl1251_cmd_vbm(struct wl1251 *wl, u8 identity,
169 void *bitmap, u16 bitmap_len, u8 bitmap_control)
171 struct wl1251_cmd_vbm_update *vbm;
174 wl1251_debug(DEBUG_CMD, "cmd vbm");
176 vbm = kzalloc(sizeof(*vbm), GFP_KERNEL);
182 /* Count and period will be filled by the target */
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;
189 memcpy(vbm->tim.pvb_field, bitmap, bitmap_len);
190 vbm->tim.identity = identity;
191 vbm->tim.length = bitmap_len + 3;
193 vbm->len = cpu_to_le16(bitmap_len + 5);
195 ret = wl1251_cmd_send(wl, CMD_VBM, vbm, sizeof(*vbm));
197 wl1251_error("VBM command failed");
206 int wl1251_cmd_data_path_rx(struct wl1251 *wl, u8 channel, bool enable)
208 struct cmd_enabledisable_path *cmd;
212 wl1251_debug(DEBUG_CMD, "cmd data path");
214 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
220 cmd->channel = channel;
223 cmd_rx = CMD_ENABLE_RX;
225 cmd_rx = CMD_DISABLE_RX;
227 ret = wl1251_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
229 wl1251_error("rx %s cmd for channel %d failed",
230 enable ? "start" : "stop", channel);
234 wl1251_debug(DEBUG_BOOT, "rx %s cmd channel %d",
235 enable ? "start" : "stop", channel);
242 int wl1251_cmd_data_path_tx(struct wl1251 *wl, u8 channel, bool enable)
244 struct cmd_enabledisable_path *cmd;
248 wl1251_debug(DEBUG_CMD, "cmd data path");
250 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
254 cmd->channel = channel;
257 cmd_tx = CMD_ENABLE_TX;
259 cmd_tx = CMD_DISABLE_TX;
261 ret = wl1251_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
263 wl1251_error("tx %s cmd for channel %d failed",
264 enable ? "start" : "stop", channel);
266 wl1251_debug(DEBUG_BOOT, "tx %s cmd channel %d",
267 enable ? "start" : "stop", channel);
273 int wl1251_cmd_join(struct wl1251 *wl, u8 bss_type, u8 channel,
274 u16 beacon_interval, u8 dtim_interval)
276 struct cmd_join *join;
280 join = kzalloc(sizeof(*join), GFP_KERNEL);
286 wl1251_debug(DEBUG_CMD, "cmd join%s ch %d %d/%d",
287 bss_type == BSS_TYPE_IBSS ? " ibss" : "",
288 channel, beacon_interval, dtim_interval);
290 /* Reverse order BSSID */
291 bssid = (u8 *) &join->bssid_lsb;
292 for (i = 0; i < ETH_ALEN; i++)
293 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
295 join->rx_config_options = wl->rx_config;
296 join->rx_filter_options = wl->rx_filter;
298 join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
299 RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
301 join->beacon_interval = beacon_interval;
302 join->dtim_interval = dtim_interval;
303 join->bss_type = bss_type;
304 join->channel = channel;
305 join->ctrl = JOIN_CMD_CTRL_TX_FLUSH;
307 ret = wl1251_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
309 wl1251_error("failed to initiate cmd join");
318 int wl1251_cmd_ps_mode(struct wl1251 *wl, u8 ps_mode)
320 struct wl1251_cmd_ps_params *ps_params = NULL;
323 wl1251_debug(DEBUG_CMD, "cmd set ps mode");
325 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
331 ps_params->ps_mode = ps_mode;
332 ps_params->send_null_data = 1;
333 ps_params->retries = 5;
334 ps_params->hang_over_period = 128;
335 ps_params->null_data_rate = 1; /* 1 Mbps */
337 ret = wl1251_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
340 wl1251_error("cmd set_ps_mode failed");
349 int wl1251_cmd_read_memory(struct wl1251 *wl, u32 addr, void *answer,
352 struct cmd_read_write_memory *cmd;
355 wl1251_debug(DEBUG_CMD, "cmd read memory");
357 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
363 WARN_ON(len > MAX_READ_SIZE);
364 len = min_t(size_t, len, MAX_READ_SIZE);
369 ret = wl1251_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
371 wl1251_error("read memory command failed: %d", ret);
375 /* the read command got in, we can now read the answer */
376 wl1251_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
378 if (cmd->header.status != CMD_STATUS_SUCCESS)
379 wl1251_error("error in read command result: %d",
382 memcpy(answer, cmd->value, len);
389 int wl1251_cmd_template_set(struct wl1251 *wl, u16 cmd_id,
390 void *buf, size_t buf_len)
392 struct wl1251_cmd_packet_template *cmd;
396 wl1251_debug(DEBUG_CMD, "cmd template %d", cmd_id);
398 WARN_ON(buf_len > WL1251_MAX_TEMPLATE_SIZE);
399 buf_len = min_t(size_t, buf_len, WL1251_MAX_TEMPLATE_SIZE);
400 cmd_len = ALIGN(sizeof(*cmd) + buf_len, 4);
402 cmd = kzalloc(cmd_len, GFP_KERNEL);
408 cmd->size = cpu_to_le16(buf_len);
411 memcpy(cmd->data, buf, buf_len);
413 ret = wl1251_cmd_send(wl, cmd_id, cmd, cmd_len);
415 wl1251_warning("cmd set_template failed: %d", ret);
424 int wl1251_cmd_scan(struct wl1251 *wl, u8 *ssid, size_t ssid_len,
425 struct ieee80211_channel *channels[],
426 unsigned int n_channels, unsigned int n_probes)
428 struct wl1251_cmd_scan *cmd;
431 wl1251_debug(DEBUG_CMD, "cmd scan channels %d", n_channels);
433 WARN_ON(n_channels > SCAN_MAX_NUM_OF_CHANNELS);
435 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
439 cmd->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
440 cmd->params.rx_filter_options = cpu_to_le32(CFG_RX_PRSP_EN |
443 cmd->params.scan_options = 0;
445 * Use high priority scan when not associated to prevent fw issue
446 * causing never-ending scans (sometimes 20+ minutes).
447 * Note: This bug may be caused by the fw's DTIM handling.
449 if (is_zero_ether_addr(wl->bssid))
450 cmd->params.scan_options |= cpu_to_le16(WL1251_SCAN_OPT_PRIORITY_HIGH);
451 cmd->params.num_channels = n_channels;
452 cmd->params.num_probe_requests = n_probes;
453 cmd->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */
454 cmd->params.tid_trigger = 0;
456 for (i = 0; i < n_channels; i++) {
457 cmd->channels[i].min_duration =
458 cpu_to_le32(WL1251_SCAN_MIN_DURATION);
459 cmd->channels[i].max_duration =
460 cpu_to_le32(WL1251_SCAN_MAX_DURATION);
461 memset(&cmd->channels[i].bssid_lsb, 0xff, 4);
462 memset(&cmd->channels[i].bssid_msb, 0xff, 2);
463 cmd->channels[i].early_termination = 0;
464 cmd->channels[i].tx_power_att = 0;
465 cmd->channels[i].channel = channels[i]->hw_value;
468 cmd->params.ssid_len = ssid_len;
470 memcpy(cmd->params.ssid, ssid, ssid_len);
472 ret = wl1251_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd));
474 wl1251_error("cmd scan failed: %d", ret);
478 wl1251_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
480 if (cmd->header.status != CMD_STATUS_SUCCESS) {
481 wl1251_error("cmd scan status wasn't success: %d",
492 int wl1251_cmd_trigger_scan_to(struct wl1251 *wl, u32 timeout)
494 struct wl1251_cmd_trigger_scan_to *cmd;
497 wl1251_debug(DEBUG_CMD, "cmd trigger scan to");
499 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
503 cmd->timeout = timeout;
505 ret = wl1251_cmd_send(wl, CMD_TRIGGER_SCAN_TO, cmd, sizeof(*cmd));
507 wl1251_error("cmd trigger scan to failed: %d", ret);