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2f01a1f5 KV |
1 | #include "cmd.h" |
2 | ||
3 | #include <linux/module.h> | |
4 | #include <linux/crc7.h> | |
5 | #include <linux/spi/spi.h> | |
6 | ||
7 | #include "wl12xx.h" | |
8 | #include "wl12xx_80211.h" | |
9 | #include "reg.h" | |
10 | #include "spi.h" | |
11 | #include "ps.h" | |
12 | ||
13 | int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len) | |
14 | { | |
15 | struct wl12xx_command cmd; | |
16 | unsigned long timeout; | |
17 | size_t cmd_len; | |
18 | u32 intr; | |
19 | int ret = 0; | |
20 | ||
21 | memset(&cmd, 0, sizeof(cmd)); | |
22 | cmd.id = type; | |
23 | cmd.status = 0; | |
24 | memcpy(cmd.parameters, buf, buf_len); | |
25 | cmd_len = ALIGN(buf_len, 4) + CMDMBOX_HEADER_LEN; | |
26 | ||
27 | wl12xx_ps_elp_wakeup(wl); | |
28 | ||
29 | wl12xx_spi_mem_write(wl, wl->cmd_box_addr, &cmd, cmd_len); | |
30 | ||
31 | wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD); | |
32 | ||
33 | timeout = jiffies + msecs_to_jiffies(WL12XX_COMMAND_TIMEOUT); | |
34 | ||
35 | intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); | |
36 | while (!(intr & wl->chip.intr_cmd_complete)) { | |
37 | if (time_after(jiffies, timeout)) { | |
38 | wl12xx_error("command complete timeout"); | |
39 | ret = -ETIMEDOUT; | |
40 | goto out; | |
41 | } | |
42 | ||
43 | msleep(1); | |
44 | ||
45 | intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); | |
46 | } | |
47 | ||
48 | wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK, | |
49 | wl->chip.intr_cmd_complete); | |
50 | ||
51 | out: | |
52 | wl12xx_ps_elp_sleep(wl); | |
53 | ||
54 | return ret; | |
55 | } | |
56 | ||
57 | int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer) | |
58 | { | |
59 | int ret; | |
60 | ||
61 | wl12xx_debug(DEBUG_CMD, "cmd test"); | |
62 | ||
63 | ret = wl12xx_cmd_send(wl, CMD_TEST, buf, buf_len); | |
64 | if (ret < 0) { | |
65 | wl12xx_warning("TEST command failed"); | |
66 | return ret; | |
67 | } | |
68 | ||
69 | if (answer) { | |
70 | struct wl12xx_command *cmd_answer; | |
71 | ||
72 | /* | |
73 | * The test command got in, we can read the answer. | |
74 | * The answer would be a wl12xx_command, where the | |
75 | * parameter array contains the actual answer. | |
76 | */ | |
77 | ||
78 | wl12xx_ps_elp_wakeup(wl); | |
79 | ||
80 | wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len); | |
81 | ||
82 | wl12xx_ps_elp_sleep(wl); | |
83 | ||
84 | cmd_answer = buf; | |
85 | if (cmd_answer->status != CMD_STATUS_SUCCESS) | |
86 | wl12xx_error("TEST command answer error: %d", | |
87 | cmd_answer->status); | |
88 | } | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
93 | ||
94 | int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len, | |
95 | void *answer) | |
96 | { | |
97 | struct wl12xx_command *cmd; | |
98 | struct acx_header header; | |
99 | int ret; | |
100 | ||
101 | wl12xx_debug(DEBUG_CMD, "cmd interrogate"); | |
102 | ||
103 | header.id = ie_id; | |
104 | header.len = ie_len - sizeof(header); | |
105 | ||
106 | ret = wl12xx_cmd_send(wl, CMD_INTERROGATE, &header, sizeof(header)); | |
107 | if (ret < 0) { | |
108 | wl12xx_error("INTERROGATE command failed"); | |
109 | return ret; | |
110 | } | |
111 | ||
112 | wl12xx_ps_elp_wakeup(wl); | |
113 | ||
114 | /* the interrogate command got in, we can read the answer */ | |
115 | wl12xx_spi_mem_read(wl, wl->cmd_box_addr, answer, | |
116 | CMDMBOX_HEADER_LEN + ie_len); | |
117 | ||
118 | wl12xx_ps_elp_sleep(wl); | |
119 | ||
120 | cmd = answer; | |
121 | if (cmd->status != CMD_STATUS_SUCCESS) | |
122 | wl12xx_error("INTERROGATE command error: %d", | |
123 | cmd->status); | |
124 | ||
125 | return 0; | |
126 | ||
127 | } | |
128 | ||
129 | int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len) | |
130 | { | |
131 | int ret; | |
132 | ||
133 | wl12xx_debug(DEBUG_CMD, "cmd configure"); | |
134 | ||
135 | ret = wl12xx_cmd_send(wl, CMD_CONFIGURE, ie, | |
136 | ie_len); | |
137 | if (ret < 0) { | |
138 | wl12xx_warning("CONFIGURE command NOK"); | |
139 | return ret; | |
140 | } | |
141 | ||
142 | return 0; | |
143 | ||
144 | } | |
145 | ||
146 | int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity, | |
147 | void *bitmap, u16 bitmap_len, u8 bitmap_control) | |
148 | { | |
149 | struct vbm_update_request vbm; | |
150 | int ret; | |
151 | ||
152 | wl12xx_debug(DEBUG_CMD, "cmd vbm"); | |
153 | ||
154 | /* Count and period will be filled by the target */ | |
155 | vbm.tim.bitmap_ctrl = bitmap_control; | |
156 | if (bitmap_len > PARTIAL_VBM_MAX) { | |
157 | wl12xx_warning("cmd vbm len is %d B, truncating to %d", | |
158 | bitmap_len, PARTIAL_VBM_MAX); | |
159 | bitmap_len = PARTIAL_VBM_MAX; | |
160 | } | |
161 | memcpy(vbm.tim.pvb_field, bitmap, bitmap_len); | |
162 | vbm.tim.identity = identity; | |
163 | vbm.tim.length = bitmap_len + 3; | |
164 | ||
165 | vbm.len = cpu_to_le16(bitmap_len + 5); | |
166 | ||
167 | ret = wl12xx_cmd_send(wl, CMD_VBM, &vbm, sizeof(vbm)); | |
168 | if (ret < 0) { | |
169 | wl12xx_error("VBM command failed"); | |
170 | return ret; | |
171 | } | |
172 | ||
173 | return 0; | |
174 | } | |
175 | ||
176 | int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable) | |
177 | { | |
178 | int ret; | |
179 | u16 cmd_rx, cmd_tx; | |
180 | ||
181 | wl12xx_debug(DEBUG_CMD, "cmd data path"); | |
182 | ||
183 | if (enable) { | |
184 | cmd_rx = CMD_ENABLE_RX; | |
185 | cmd_tx = CMD_ENABLE_TX; | |
186 | } else { | |
187 | cmd_rx = CMD_DISABLE_RX; | |
188 | cmd_tx = CMD_DISABLE_TX; | |
189 | } | |
190 | ||
191 | ret = wl12xx_cmd_send(wl, cmd_rx, &channel, sizeof(channel)); | |
192 | if (ret < 0) { | |
193 | wl12xx_error("rx %s cmd for channel %d failed", | |
194 | enable ? "start" : "stop", channel); | |
195 | return ret; | |
196 | } | |
197 | ||
198 | wl12xx_debug(DEBUG_BOOT, "rx %s cmd channel %d", | |
199 | enable ? "start" : "stop", channel); | |
200 | ||
201 | ret = wl12xx_cmd_send(wl, cmd_tx, &channel, sizeof(channel)); | |
202 | if (ret < 0) { | |
203 | wl12xx_error("tx %s cmd for channel %d failed", | |
204 | enable ? "start" : "stop", channel); | |
205 | return ret; | |
206 | } | |
207 | ||
208 | wl12xx_debug(DEBUG_BOOT, "tx %s cmd channel %d", | |
209 | enable ? "start" : "stop", channel); | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
214 | int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval, | |
215 | u16 beacon_interval, u8 wait) | |
216 | { | |
217 | unsigned long timeout; | |
218 | struct cmd_join join = {}; | |
219 | int ret, i; | |
220 | u8 *bssid; | |
221 | ||
222 | /* FIXME: this should be in main.c */ | |
223 | ret = wl12xx_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, | |
224 | DEFAULT_HW_GEN_MODULATION_TYPE, | |
225 | wl->tx_mgmt_frm_rate, | |
226 | wl->tx_mgmt_frm_mod); | |
227 | if (ret < 0) | |
228 | return ret; | |
229 | ||
230 | wl12xx_debug(DEBUG_CMD, "cmd join"); | |
231 | ||
232 | /* Reverse order BSSID */ | |
233 | bssid = (u8 *)&join.bssid_lsb; | |
234 | for (i = 0; i < ETH_ALEN; i++) | |
235 | bssid[i] = wl->bssid[ETH_ALEN - i - 1]; | |
236 | ||
237 | join.rx_config_options = wl->rx_config; | |
238 | join.rx_filter_options = wl->rx_filter; | |
239 | ||
240 | join.basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS | | |
241 | RATE_MASK_5_5MBPS | RATE_MASK_11MBPS; | |
242 | ||
243 | join.beacon_interval = beacon_interval; | |
244 | join.dtim_interval = dtim_interval; | |
245 | join.bss_type = bss_type; | |
246 | join.channel = wl->channel; | |
247 | join.ctrl = JOIN_CMD_CTRL_TX_FLUSH; | |
248 | ||
249 | ret = wl12xx_cmd_send(wl, CMD_START_JOIN, &join, sizeof(join)); | |
250 | if (ret < 0) { | |
251 | wl12xx_error("failed to initiate cmd join"); | |
252 | return ret; | |
253 | } | |
254 | ||
255 | timeout = msecs_to_jiffies(JOIN_TIMEOUT); | |
256 | ||
257 | /* | |
258 | * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to | |
259 | * simplify locking we just sleep instead, for now | |
260 | */ | |
261 | if (wait) | |
262 | msleep(10); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode) | |
268 | { | |
269 | int ret; | |
270 | struct acx_ps_params ps_params; | |
271 | ||
272 | /* FIXME: this should be in ps.c */ | |
273 | ret = wl12xx_acx_wake_up_conditions(wl, wl->listen_int); | |
274 | if (ret < 0) { | |
275 | wl12xx_error("Couldnt set wake up conditions"); | |
276 | return ret; | |
277 | } | |
278 | ||
279 | wl12xx_debug(DEBUG_CMD, "cmd set ps mode"); | |
280 | ||
281 | ps_params.ps_mode = ps_mode; | |
282 | ps_params.send_null_data = 1; | |
283 | ps_params.retries = 5; | |
284 | ps_params.hang_over_period = 128; | |
285 | ps_params.null_data_rate = 1; /* 1 Mbps */ | |
286 | ||
287 | ret = wl12xx_cmd_send(wl, CMD_SET_PS_MODE, &ps_params, | |
288 | sizeof(ps_params)); | |
289 | if (ret < 0) { | |
290 | wl12xx_error("cmd set_ps_mode failed"); | |
291 | return ret; | |
292 | } | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
297 | int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer) | |
298 | { | |
299 | struct cmd_read_write_memory mem_cmd, *mem_answer; | |
300 | struct wl12xx_command cmd; | |
301 | int ret; | |
302 | ||
303 | wl12xx_debug(DEBUG_CMD, "cmd read memory"); | |
304 | ||
305 | memset(&mem_cmd, 0, sizeof(mem_cmd)); | |
306 | mem_cmd.addr = addr; | |
307 | mem_cmd.size = len; | |
308 | ||
309 | ret = wl12xx_cmd_send(wl, CMD_READ_MEMORY, &mem_cmd, sizeof(mem_cmd)); | |
310 | if (ret < 0) { | |
311 | wl12xx_error("read memory command failed: %d", ret); | |
312 | return ret; | |
313 | } | |
314 | ||
315 | /* the read command got in, we can now read the answer */ | |
316 | wl12xx_spi_mem_read(wl, wl->cmd_box_addr, &cmd, | |
317 | CMDMBOX_HEADER_LEN + sizeof(mem_cmd)); | |
318 | ||
319 | if (cmd.status != CMD_STATUS_SUCCESS) | |
320 | wl12xx_error("error in read command result: %d", cmd.status); | |
321 | ||
322 | mem_answer = (struct cmd_read_write_memory *) cmd.parameters; | |
323 | memcpy(answer, mem_answer->value, len); | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id, | |
329 | void *buf, size_t buf_len) | |
330 | { | |
331 | struct wl12xx_cmd_packet_template template; | |
332 | int ret; | |
333 | ||
334 | wl12xx_debug(DEBUG_CMD, "cmd template %d", cmd_id); | |
335 | ||
336 | memset(&template, 0, sizeof(template)); | |
337 | ||
338 | WARN_ON(buf_len > WL12XX_MAX_TEMPLATE_SIZE); | |
339 | buf_len = min_t(size_t, buf_len, WL12XX_MAX_TEMPLATE_SIZE); | |
340 | template.size = cpu_to_le16(buf_len); | |
341 | ||
342 | if (buf) | |
343 | memcpy(template.template, buf, buf_len); | |
344 | ||
345 | ret = wl12xx_cmd_send(wl, cmd_id, &template, | |
346 | sizeof(template.size) + buf_len); | |
347 | if (ret < 0) { | |
348 | wl12xx_warning("cmd set_template failed: %d", ret); | |
349 | return ret; | |
350 | } | |
351 | ||
352 | return 0; | |
353 | } |