Commit | Line | Data |
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711615df AP |
1 | /* |
2 | * Silicon Labs Si2168 DVB-T/T2/C demodulator driver | |
3 | * | |
4 | * Copyright (C) 2014 Antti Palosaari <crope@iki.fi> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | */ | |
16 | ||
845f3505 AP |
17 | #include "si2168_priv.h" |
18 | ||
19 | static const struct dvb_frontend_ops si2168_ops; | |
20 | ||
21 | /* execute firmware command */ | |
6307b560 | 22 | static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd) |
845f3505 | 23 | { |
6307b560 | 24 | struct si2168_dev *dev = i2c_get_clientdata(client); |
845f3505 AP |
25 | int ret; |
26 | unsigned long timeout; | |
27 | ||
bd01c766 | 28 | mutex_lock(&dev->i2c_mutex); |
845f3505 AP |
29 | |
30 | if (cmd->wlen) { | |
31 | /* write cmd and args for firmware */ | |
3de35835 | 32 | ret = i2c_master_send(client, cmd->args, cmd->wlen); |
845f3505 AP |
33 | if (ret < 0) { |
34 | goto err_mutex_unlock; | |
35 | } else if (ret != cmd->wlen) { | |
36 | ret = -EREMOTEIO; | |
37 | goto err_mutex_unlock; | |
38 | } | |
39 | } | |
40 | ||
41 | if (cmd->rlen) { | |
42 | /* wait cmd execution terminate */ | |
551c33e7 | 43 | #define TIMEOUT 70 |
845f3505 AP |
44 | timeout = jiffies + msecs_to_jiffies(TIMEOUT); |
45 | while (!time_after(jiffies, timeout)) { | |
3de35835 | 46 | ret = i2c_master_recv(client, cmd->args, cmd->rlen); |
845f3505 AP |
47 | if (ret < 0) { |
48 | goto err_mutex_unlock; | |
49 | } else if (ret != cmd->rlen) { | |
50 | ret = -EREMOTEIO; | |
51 | goto err_mutex_unlock; | |
52 | } | |
53 | ||
54 | /* firmware ready? */ | |
55 | if ((cmd->args[0] >> 7) & 0x01) | |
56 | break; | |
57 | } | |
58 | ||
3de35835 | 59 | dev_dbg(&client->dev, "cmd execution took %d ms\n", |
845f3505 AP |
60 | jiffies_to_msecs(jiffies) - |
61 | (jiffies_to_msecs(timeout) - TIMEOUT)); | |
62 | ||
eefae30a | 63 | if (!((cmd->args[0] >> 7) & 0x01)) { |
845f3505 AP |
64 | ret = -ETIMEDOUT; |
65 | goto err_mutex_unlock; | |
66 | } | |
67 | } | |
68 | ||
4affbe1d AP |
69 | mutex_unlock(&dev->i2c_mutex); |
70 | return 0; | |
845f3505 AP |
71 | |
72 | err_mutex_unlock: | |
bd01c766 | 73 | mutex_unlock(&dev->i2c_mutex); |
3de35835 | 74 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
75 | return ret; |
76 | } | |
77 | ||
78 | static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status) | |
79 | { | |
6307b560 AP |
80 | struct i2c_client *client = fe->demodulator_priv; |
81 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
bffab93c | 82 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
845f3505 AP |
83 | int ret; |
84 | struct si2168_cmd cmd; | |
85 | ||
86 | *status = 0; | |
87 | ||
bd01c766 | 88 | if (!dev->active) { |
845f3505 AP |
89 | ret = -EAGAIN; |
90 | goto err; | |
91 | } | |
92 | ||
bffab93c AP |
93 | switch (c->delivery_system) { |
94 | case SYS_DVBT: | |
888680ff | 95 | memcpy(cmd.args, "\xa0\x01", 2); |
bffab93c AP |
96 | cmd.wlen = 2; |
97 | cmd.rlen = 13; | |
98 | break; | |
c790885b | 99 | case SYS_DVBC_ANNEX_A: |
888680ff | 100 | memcpy(cmd.args, "\x90\x01", 2); |
c790885b AP |
101 | cmd.wlen = 2; |
102 | cmd.rlen = 9; | |
103 | break; | |
bffab93c | 104 | case SYS_DVBT2: |
888680ff | 105 | memcpy(cmd.args, "\x50\x01", 2); |
bffab93c AP |
106 | cmd.wlen = 2; |
107 | cmd.rlen = 14; | |
108 | break; | |
109 | default: | |
110 | ret = -EINVAL; | |
111 | goto err; | |
112 | } | |
113 | ||
6307b560 | 114 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
115 | if (ret) |
116 | goto err; | |
117 | ||
722a042d AP |
118 | switch ((cmd.args[2] >> 1) & 0x03) { |
119 | case 0x01: | |
845f3505 AP |
120 | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER; |
121 | break; | |
722a042d | 122 | case 0x03: |
845f3505 AP |
123 | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | |
124 | FE_HAS_SYNC | FE_HAS_LOCK; | |
125 | break; | |
126 | } | |
127 | ||
bd01c766 | 128 | dev->fe_status = *status; |
845f3505 | 129 | |
88ac8f86 AP |
130 | if (*status & FE_HAS_LOCK) { |
131 | c->cnr.len = 1; | |
132 | c->cnr.stat[0].scale = FE_SCALE_DECIBEL; | |
133 | c->cnr.stat[0].svalue = cmd.args[3] * 1000 / 4; | |
134 | } else { | |
135 | c->cnr.len = 1; | |
136 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
137 | } | |
138 | ||
3de35835 | 139 | dev_dbg(&client->dev, "status=%02x args=%*ph\n", |
37b4e43d | 140 | *status, cmd.rlen, cmd.args); |
845f3505 AP |
141 | |
142 | return 0; | |
143 | err: | |
3de35835 | 144 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
145 | return ret; |
146 | } | |
147 | ||
148 | static int si2168_set_frontend(struct dvb_frontend *fe) | |
149 | { | |
6307b560 AP |
150 | struct i2c_client *client = fe->demodulator_priv; |
151 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
152 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
153 | int ret; | |
154 | struct si2168_cmd cmd; | |
bffab93c | 155 | u8 bandwidth, delivery_system; |
845f3505 | 156 | |
3de35835 | 157 | dev_dbg(&client->dev, |
e5dd1100 AP |
158 | "delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%u stream_id=%u\n", |
159 | c->delivery_system, c->modulation, c->frequency, | |
160 | c->bandwidth_hz, c->symbol_rate, c->inversion, | |
161 | c->stream_id); | |
845f3505 | 162 | |
bd01c766 | 163 | if (!dev->active) { |
845f3505 AP |
164 | ret = -EAGAIN; |
165 | goto err; | |
166 | } | |
167 | ||
bffab93c AP |
168 | switch (c->delivery_system) { |
169 | case SYS_DVBT: | |
170 | delivery_system = 0x20; | |
171 | break; | |
c790885b AP |
172 | case SYS_DVBC_ANNEX_A: |
173 | delivery_system = 0x30; | |
174 | break; | |
bffab93c AP |
175 | case SYS_DVBT2: |
176 | delivery_system = 0x70; | |
177 | break; | |
178 | default: | |
179 | ret = -EINVAL; | |
180 | goto err; | |
181 | } | |
182 | ||
683e98b6 OS |
183 | if (c->bandwidth_hz == 0) { |
184 | ret = -EINVAL; | |
185 | goto err; | |
17d4d6ae OS |
186 | } else if (c->bandwidth_hz <= 2000000) |
187 | bandwidth = 0x02; | |
188 | else if (c->bandwidth_hz <= 5000000) | |
bffab93c | 189 | bandwidth = 0x05; |
c790885b | 190 | else if (c->bandwidth_hz <= 6000000) |
bffab93c | 191 | bandwidth = 0x06; |
c790885b | 192 | else if (c->bandwidth_hz <= 7000000) |
bffab93c | 193 | bandwidth = 0x07; |
c790885b | 194 | else if (c->bandwidth_hz <= 8000000) |
bffab93c | 195 | bandwidth = 0x08; |
c790885b AP |
196 | else if (c->bandwidth_hz <= 9000000) |
197 | bandwidth = 0x09; | |
198 | else if (c->bandwidth_hz <= 10000000) | |
199 | bandwidth = 0x0a; | |
200 | else | |
201 | bandwidth = 0x0f; | |
845f3505 AP |
202 | |
203 | /* program tuner */ | |
204 | if (fe->ops.tuner_ops.set_params) { | |
205 | ret = fe->ops.tuner_ops.set_params(fe); | |
206 | if (ret) | |
207 | goto err; | |
208 | } | |
209 | ||
210 | memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5); | |
211 | cmd.wlen = 5; | |
212 | cmd.rlen = 5; | |
6307b560 | 213 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
214 | if (ret) |
215 | goto err; | |
216 | ||
bffab93c AP |
217 | /* that has no big effect */ |
218 | if (c->delivery_system == SYS_DVBT) | |
219 | memcpy(cmd.args, "\x89\x21\x06\x11\xff\x98", 6); | |
c790885b AP |
220 | else if (c->delivery_system == SYS_DVBC_ANNEX_A) |
221 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\xf0", 6); | |
bffab93c AP |
222 | else if (c->delivery_system == SYS_DVBT2) |
223 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6); | |
845f3505 AP |
224 | cmd.wlen = 6; |
225 | cmd.rlen = 3; | |
6307b560 | 226 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
227 | if (ret) |
228 | goto err; | |
229 | ||
e395e573 C |
230 | if (c->delivery_system == SYS_DVBT2) { |
231 | /* select PLP */ | |
232 | cmd.args[0] = 0x52; | |
233 | cmd.args[1] = c->stream_id & 0xff; | |
234 | cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1; | |
235 | cmd.wlen = 3; | |
236 | cmd.rlen = 1; | |
6307b560 | 237 | ret = si2168_cmd_execute(client, &cmd); |
e395e573 C |
238 | if (ret) |
239 | goto err; | |
240 | } | |
241 | ||
845f3505 AP |
242 | memcpy(cmd.args, "\x51\x03", 2); |
243 | cmd.wlen = 2; | |
244 | cmd.rlen = 12; | |
6307b560 | 245 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
246 | if (ret) |
247 | goto err; | |
248 | ||
249 | memcpy(cmd.args, "\x12\x08\x04", 3); | |
250 | cmd.wlen = 3; | |
251 | cmd.rlen = 3; | |
6307b560 | 252 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
253 | if (ret) |
254 | goto err; | |
255 | ||
845f3505 AP |
256 | memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6); |
257 | cmd.wlen = 6; | |
1d518c27 | 258 | cmd.rlen = 4; |
6307b560 | 259 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
260 | if (ret) |
261 | goto err; | |
262 | ||
263 | memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6); | |
264 | cmd.wlen = 6; | |
1d518c27 | 265 | cmd.rlen = 4; |
6307b560 | 266 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
267 | if (ret) |
268 | goto err; | |
269 | ||
845f3505 AP |
270 | memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6); |
271 | cmd.wlen = 6; | |
1d518c27 | 272 | cmd.rlen = 4; |
6307b560 | 273 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
274 | if (ret) |
275 | goto err; | |
276 | ||
277 | memcpy(cmd.args, "\x14\x00\x0a\x10\x00\x00", 6); | |
bffab93c | 278 | cmd.args[4] = delivery_system | bandwidth; |
845f3505 | 279 | cmd.wlen = 6; |
1d518c27 | 280 | cmd.rlen = 4; |
6307b560 | 281 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
282 | if (ret) |
283 | goto err; | |
284 | ||
32bf8818 LA |
285 | /* set DVB-C symbol rate */ |
286 | if (c->delivery_system == SYS_DVBC_ANNEX_A) { | |
287 | memcpy(cmd.args, "\x14\x00\x02\x11", 4); | |
346d4900 | 288 | cmd.args[4] = ((c->symbol_rate / 1000) >> 0) & 0xff; |
32bf8818 LA |
289 | cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff; |
290 | cmd.wlen = 6; | |
291 | cmd.rlen = 4; | |
6307b560 | 292 | ret = si2168_cmd_execute(client, &cmd); |
32bf8818 LA |
293 | if (ret) |
294 | goto err; | |
295 | } | |
296 | ||
845f3505 AP |
297 | memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6); |
298 | cmd.wlen = 6; | |
1d518c27 | 299 | cmd.rlen = 4; |
6307b560 | 300 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
301 | if (ret) |
302 | goto err; | |
303 | ||
52791979 | 304 | memcpy(cmd.args, "\x14\x00\x09\x10\xe3\x08", 6); |
bd01c766 | 305 | cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10; |
845f3505 | 306 | cmd.wlen = 6; |
1d518c27 | 307 | cmd.rlen = 4; |
6307b560 | 308 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
309 | if (ret) |
310 | goto err; | |
311 | ||
52791979 | 312 | memcpy(cmd.args, "\x14\x00\x08\x10\xd7\x05", 6); |
bd01c766 | 313 | cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10; |
845f3505 | 314 | cmd.wlen = 6; |
1d518c27 | 315 | cmd.rlen = 4; |
6307b560 | 316 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
317 | if (ret) |
318 | goto err; | |
319 | ||
320 | memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6); | |
321 | cmd.wlen = 6; | |
1d518c27 | 322 | cmd.rlen = 4; |
6307b560 | 323 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
324 | if (ret) |
325 | goto err; | |
326 | ||
43911776 OS |
327 | memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6); |
328 | cmd.wlen = 6; | |
329 | cmd.rlen = 4; | |
6307b560 | 330 | ret = si2168_cmd_execute(client, &cmd); |
43911776 OS |
331 | if (ret) |
332 | goto err; | |
333 | ||
888680ff | 334 | memcpy(cmd.args, "\x85", 1); |
845f3505 AP |
335 | cmd.wlen = 1; |
336 | cmd.rlen = 1; | |
6307b560 | 337 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
338 | if (ret) |
339 | goto err; | |
340 | ||
bd01c766 | 341 | dev->delivery_system = c->delivery_system; |
845f3505 AP |
342 | |
343 | return 0; | |
344 | err: | |
3de35835 | 345 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
346 | return ret; |
347 | } | |
348 | ||
349 | static int si2168_init(struct dvb_frontend *fe) | |
350 | { | |
6307b560 AP |
351 | struct i2c_client *client = fe->demodulator_priv; |
352 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 | 353 | int ret, len, remaining; |
58f6693f | 354 | const struct firmware *fw; |
c32b2816 | 355 | const char *fw_name; |
845f3505 | 356 | struct si2168_cmd cmd; |
b6b6fd6f | 357 | unsigned int chip_id; |
845f3505 | 358 | |
3de35835 | 359 | dev_dbg(&client->dev, "\n"); |
845f3505 | 360 | |
8e417224 | 361 | /* initialize */ |
888680ff | 362 | memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13); |
845f3505 AP |
363 | cmd.wlen = 13; |
364 | cmd.rlen = 0; | |
6307b560 | 365 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
366 | if (ret) |
367 | goto err; | |
368 | ||
bd01c766 | 369 | if (dev->fw_loaded) { |
8e417224 OS |
370 | /* resume */ |
371 | memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8); | |
372 | cmd.wlen = 8; | |
373 | cmd.rlen = 1; | |
6307b560 | 374 | ret = si2168_cmd_execute(client, &cmd); |
8e417224 OS |
375 | if (ret) |
376 | goto err; | |
377 | ||
378 | memcpy(cmd.args, "\x85", 1); | |
379 | cmd.wlen = 1; | |
380 | cmd.rlen = 1; | |
6307b560 | 381 | ret = si2168_cmd_execute(client, &cmd); |
8e417224 OS |
382 | if (ret) |
383 | goto err; | |
384 | ||
385 | goto warm; | |
386 | } | |
387 | ||
388 | /* power up */ | |
888680ff | 389 | memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8); |
845f3505 AP |
390 | cmd.wlen = 8; |
391 | cmd.rlen = 1; | |
6307b560 | 392 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
393 | if (ret) |
394 | goto err; | |
395 | ||
c9cb0820 | 396 | /* query chip revision */ |
888680ff | 397 | memcpy(cmd.args, "\x02", 1); |
845f3505 AP |
398 | cmd.wlen = 1; |
399 | cmd.rlen = 13; | |
6307b560 | 400 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
401 | if (ret) |
402 | goto err; | |
403 | ||
b6b6fd6f AP |
404 | chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 | |
405 | cmd.args[4] << 0; | |
406 | ||
635a90cf | 407 | #define SI2168_A20 ('A' << 24 | 68 << 16 | '2' << 8 | '0' << 0) |
b6b6fd6f AP |
408 | #define SI2168_A30 ('A' << 24 | 68 << 16 | '3' << 8 | '0' << 0) |
409 | #define SI2168_B40 ('B' << 24 | 68 << 16 | '4' << 8 | '0' << 0) | |
410 | ||
411 | switch (chip_id) { | |
635a90cf | 412 | case SI2168_A20: |
c32b2816 | 413 | fw_name = SI2168_A20_FIRMWARE; |
635a90cf | 414 | break; |
b6b6fd6f | 415 | case SI2168_A30: |
c32b2816 | 416 | fw_name = SI2168_A30_FIRMWARE; |
b6b6fd6f AP |
417 | break; |
418 | case SI2168_B40: | |
c32b2816 | 419 | fw_name = SI2168_B40_FIRMWARE; |
b6b6fd6f AP |
420 | break; |
421 | default: | |
9b7839c3 | 422 | dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n", |
37b4e43d | 423 | cmd.args[2], cmd.args[1], |
b6b6fd6f | 424 | cmd.args[3], cmd.args[4]); |
c9cb0820 OS |
425 | ret = -EINVAL; |
426 | goto err; | |
427 | } | |
428 | ||
9b7839c3 AP |
429 | dev_info(&client->dev, "found a 'Silicon Labs Si21%d-%c%c%c'\n", |
430 | cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]); | |
845f3505 AP |
431 | |
432 | /* request the firmware, this will block and timeout */ | |
c32b2816 | 433 | ret = request_firmware(&fw, fw_name, &client->dev); |
845f3505 | 434 | if (ret) { |
b6b6fd6f AP |
435 | /* fallback mechanism to handle old name for Si2168 B40 fw */ |
436 | if (chip_id == SI2168_B40) { | |
c32b2816 AP |
437 | fw_name = SI2168_B40_FIRMWARE_FALLBACK; |
438 | ret = request_firmware(&fw, fw_name, &client->dev); | |
c9cb0820 | 439 | } |
b6b6fd6f AP |
440 | |
441 | if (ret == 0) { | |
3de35835 | 442 | dev_notice(&client->dev, |
37b4e43d OS |
443 | "please install firmware file '%s'\n", |
444 | SI2168_B40_FIRMWARE); | |
b6b6fd6f | 445 | } else { |
3de35835 | 446 | dev_err(&client->dev, |
37b4e43d | 447 | "firmware file '%s' not found\n", |
c32b2816 | 448 | fw_name); |
346d4900 | 449 | goto err_release_firmware; |
c9cb0820 | 450 | } |
845f3505 AP |
451 | } |
452 | ||
3de35835 | 453 | dev_info(&client->dev, "downloading firmware from file '%s'\n", |
c32b2816 | 454 | fw_name); |
845f3505 | 455 | |
1b97dc98 OS |
456 | if ((fw->size % 17 == 0) && (fw->data[0] > 5)) { |
457 | /* firmware is in the new format */ | |
458 | for (remaining = fw->size; remaining > 0; remaining -= 17) { | |
459 | len = fw->data[fw->size - remaining]; | |
460 | memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); | |
461 | cmd.wlen = len; | |
462 | cmd.rlen = 1; | |
6307b560 | 463 | ret = si2168_cmd_execute(client, &cmd); |
68c16a76 AP |
464 | if (ret) |
465 | break; | |
1b97dc98 | 466 | } |
68c16a76 | 467 | } else if (fw->size % 8 == 0) { |
1b97dc98 | 468 | /* firmware is in the old format */ |
68c16a76 AP |
469 | for (remaining = fw->size; remaining > 0; remaining -= 8) { |
470 | len = 8; | |
1b97dc98 OS |
471 | memcpy(cmd.args, &fw->data[fw->size - remaining], len); |
472 | cmd.wlen = len; | |
473 | cmd.rlen = 1; | |
6307b560 | 474 | ret = si2168_cmd_execute(client, &cmd); |
68c16a76 AP |
475 | if (ret) |
476 | break; | |
845f3505 | 477 | } |
68c16a76 AP |
478 | } else { |
479 | /* bad or unknown firmware format */ | |
480 | ret = -EINVAL; | |
481 | } | |
482 | ||
483 | if (ret) { | |
484 | dev_err(&client->dev, "firmware download failed %d\n", ret); | |
485 | goto err_release_firmware; | |
845f3505 AP |
486 | } |
487 | ||
488 | release_firmware(fw); | |
845f3505 | 489 | |
888680ff | 490 | memcpy(cmd.args, "\x01\x01", 2); |
845f3505 AP |
491 | cmd.wlen = 2; |
492 | cmd.rlen = 1; | |
6307b560 | 493 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
494 | if (ret) |
495 | goto err; | |
496 | ||
a594cf21 OS |
497 | /* query firmware version */ |
498 | memcpy(cmd.args, "\x11", 1); | |
499 | cmd.wlen = 1; | |
500 | cmd.rlen = 10; | |
6307b560 | 501 | ret = si2168_cmd_execute(client, &cmd); |
a594cf21 OS |
502 | if (ret) |
503 | goto err; | |
504 | ||
955e0ab8 | 505 | dev_info(&client->dev, "firmware version: %c.%c.%d\n", |
a594cf21 OS |
506 | cmd.args[6], cmd.args[7], cmd.args[8]); |
507 | ||
389ce398 OS |
508 | /* set ts mode */ |
509 | memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6); | |
bd01c766 | 510 | cmd.args[4] |= dev->ts_mode; |
389ce398 OS |
511 | cmd.wlen = 6; |
512 | cmd.rlen = 4; | |
6307b560 | 513 | ret = si2168_cmd_execute(client, &cmd); |
389ce398 OS |
514 | if (ret) |
515 | goto err; | |
516 | ||
bd01c766 | 517 | dev->fw_loaded = true; |
45c3cbb1 | 518 | warm: |
bd01c766 | 519 | dev->active = true; |
845f3505 AP |
520 | |
521 | return 0; | |
9b7839c3 | 522 | |
346d4900 | 523 | err_release_firmware: |
034e1ec0 ME |
524 | release_firmware(fw); |
525 | err: | |
3de35835 | 526 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
527 | return ret; |
528 | } | |
529 | ||
530 | static int si2168_sleep(struct dvb_frontend *fe) | |
531 | { | |
6307b560 AP |
532 | struct i2c_client *client = fe->demodulator_priv; |
533 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
4de0ed7c AP |
534 | int ret; |
535 | struct si2168_cmd cmd; | |
845f3505 | 536 | |
3de35835 | 537 | dev_dbg(&client->dev, "\n"); |
845f3505 | 538 | |
bd01c766 | 539 | dev->active = false; |
845f3505 | 540 | |
4de0ed7c AP |
541 | memcpy(cmd.args, "\x13", 1); |
542 | cmd.wlen = 1; | |
543 | cmd.rlen = 0; | |
6307b560 | 544 | ret = si2168_cmd_execute(client, &cmd); |
4de0ed7c AP |
545 | if (ret) |
546 | goto err; | |
547 | ||
845f3505 | 548 | return 0; |
4de0ed7c | 549 | err: |
3de35835 | 550 | dev_dbg(&client->dev, "failed=%d\n", ret); |
4de0ed7c | 551 | return ret; |
845f3505 AP |
552 | } |
553 | ||
554 | static int si2168_get_tune_settings(struct dvb_frontend *fe, | |
555 | struct dvb_frontend_tune_settings *s) | |
556 | { | |
557 | s->min_delay_ms = 900; | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
562 | /* | |
563 | * I2C gate logic | |
564 | * We must use unlocked i2c_transfer() here because I2C lock is already taken | |
565 | * by tuner driver. | |
566 | */ | |
567 | static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan) | |
568 | { | |
6307b560 AP |
569 | struct i2c_client *client = mux_priv; |
570 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
571 | int ret; |
572 | struct i2c_msg gate_open_msg = { | |
3de35835 | 573 | .addr = client->addr, |
845f3505 AP |
574 | .flags = 0, |
575 | .len = 3, | |
576 | .buf = "\xc0\x0d\x01", | |
577 | }; | |
578 | ||
bd01c766 | 579 | mutex_lock(&dev->i2c_mutex); |
845f3505 AP |
580 | |
581 | /* open tuner I2C gate */ | |
3de35835 | 582 | ret = __i2c_transfer(client->adapter, &gate_open_msg, 1); |
845f3505 | 583 | if (ret != 1) { |
3de35835 | 584 | dev_warn(&client->dev, "i2c write failed=%d\n", ret); |
845f3505 AP |
585 | if (ret >= 0) |
586 | ret = -EREMOTEIO; | |
587 | } else { | |
588 | ret = 0; | |
589 | } | |
590 | ||
591 | return ret; | |
592 | } | |
593 | ||
594 | static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan) | |
595 | { | |
6307b560 AP |
596 | struct i2c_client *client = mux_priv; |
597 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
598 | int ret; |
599 | struct i2c_msg gate_close_msg = { | |
3de35835 | 600 | .addr = client->addr, |
845f3505 AP |
601 | .flags = 0, |
602 | .len = 3, | |
603 | .buf = "\xc0\x0d\x00", | |
604 | }; | |
605 | ||
606 | /* close tuner I2C gate */ | |
3de35835 | 607 | ret = __i2c_transfer(client->adapter, &gate_close_msg, 1); |
845f3505 | 608 | if (ret != 1) { |
3de35835 | 609 | dev_warn(&client->dev, "i2c write failed=%d\n", ret); |
845f3505 AP |
610 | if (ret >= 0) |
611 | ret = -EREMOTEIO; | |
612 | } else { | |
613 | ret = 0; | |
614 | } | |
615 | ||
bd01c766 | 616 | mutex_unlock(&dev->i2c_mutex); |
845f3505 AP |
617 | |
618 | return ret; | |
619 | } | |
620 | ||
621 | static const struct dvb_frontend_ops si2168_ops = { | |
c790885b | 622 | .delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A}, |
845f3505 AP |
623 | .info = { |
624 | .name = "Silicon Labs Si2168", | |
f1ecc5d1 AP |
625 | .symbol_rate_min = 1000000, |
626 | .symbol_rate_max = 7200000, | |
845f3505 AP |
627 | .caps = FE_CAN_FEC_1_2 | |
628 | FE_CAN_FEC_2_3 | | |
629 | FE_CAN_FEC_3_4 | | |
630 | FE_CAN_FEC_5_6 | | |
631 | FE_CAN_FEC_7_8 | | |
632 | FE_CAN_FEC_AUTO | | |
633 | FE_CAN_QPSK | | |
634 | FE_CAN_QAM_16 | | |
635 | FE_CAN_QAM_32 | | |
636 | FE_CAN_QAM_64 | | |
637 | FE_CAN_QAM_128 | | |
638 | FE_CAN_QAM_256 | | |
639 | FE_CAN_QAM_AUTO | | |
640 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
641 | FE_CAN_GUARD_INTERVAL_AUTO | | |
642 | FE_CAN_HIERARCHY_AUTO | | |
643 | FE_CAN_MUTE_TS | | |
327eeb3a OS |
644 | FE_CAN_2G_MODULATION | |
645 | FE_CAN_MULTISTREAM | |
845f3505 AP |
646 | }, |
647 | ||
648 | .get_tune_settings = si2168_get_tune_settings, | |
649 | ||
650 | .init = si2168_init, | |
651 | .sleep = si2168_sleep, | |
652 | ||
653 | .set_frontend = si2168_set_frontend, | |
654 | ||
655 | .read_status = si2168_read_status, | |
656 | }; | |
657 | ||
658 | static int si2168_probe(struct i2c_client *client, | |
659 | const struct i2c_device_id *id) | |
660 | { | |
661 | struct si2168_config *config = client->dev.platform_data; | |
bd01c766 | 662 | struct si2168_dev *dev; |
845f3505 | 663 | int ret; |
845f3505 | 664 | |
37b4e43d | 665 | dev_dbg(&client->dev, "\n"); |
845f3505 | 666 | |
bd01c766 AP |
667 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
668 | if (!dev) { | |
845f3505 | 669 | ret = -ENOMEM; |
37b4e43d | 670 | dev_err(&client->dev, "kzalloc() failed\n"); |
1ee5e7dd | 671 | goto err; |
845f3505 AP |
672 | } |
673 | ||
bd01c766 | 674 | mutex_init(&dev->i2c_mutex); |
845f3505 | 675 | |
845f3505 | 676 | /* create mux i2c adapter for tuner */ |
6307b560 AP |
677 | dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev, |
678 | client, 0, 0, 0, si2168_select, si2168_deselect); | |
bd01c766 | 679 | if (dev->adapter == NULL) { |
4d6efc7a | 680 | ret = -ENODEV; |
346d4900 | 681 | goto err_kfree; |
4d6efc7a | 682 | } |
845f3505 AP |
683 | |
684 | /* create dvb_frontend */ | |
bd01c766 | 685 | memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops)); |
6307b560 | 686 | dev->fe.demodulator_priv = client; |
bd01c766 AP |
687 | *config->i2c_adapter = dev->adapter; |
688 | *config->fe = &dev->fe; | |
689 | dev->ts_mode = config->ts_mode; | |
690 | dev->ts_clock_inv = config->ts_clock_inv; | |
691 | dev->fw_loaded = false; | |
845f3505 | 692 | |
bd01c766 | 693 | i2c_set_clientdata(client, dev); |
845f3505 | 694 | |
346d4900 | 695 | dev_info(&client->dev, "Silicon Labs Si2168 successfully attached\n"); |
845f3505 | 696 | return 0; |
346d4900 | 697 | err_kfree: |
bd01c766 | 698 | kfree(dev); |
1ee5e7dd | 699 | err: |
37b4e43d | 700 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
701 | return ret; |
702 | } | |
703 | ||
704 | static int si2168_remove(struct i2c_client *client) | |
705 | { | |
bd01c766 | 706 | struct si2168_dev *dev = i2c_get_clientdata(client); |
845f3505 | 707 | |
37b4e43d | 708 | dev_dbg(&client->dev, "\n"); |
845f3505 | 709 | |
bd01c766 | 710 | i2c_del_mux_adapter(dev->adapter); |
845f3505 | 711 | |
bd01c766 AP |
712 | dev->fe.ops.release = NULL; |
713 | dev->fe.demodulator_priv = NULL; | |
845f3505 | 714 | |
bd01c766 | 715 | kfree(dev); |
845f3505 AP |
716 | |
717 | return 0; | |
718 | } | |
719 | ||
346d4900 | 720 | static const struct i2c_device_id si2168_id_table[] = { |
845f3505 AP |
721 | {"si2168", 0}, |
722 | {} | |
723 | }; | |
346d4900 | 724 | MODULE_DEVICE_TABLE(i2c, si2168_id_table); |
845f3505 AP |
725 | |
726 | static struct i2c_driver si2168_driver = { | |
727 | .driver = { | |
728 | .owner = THIS_MODULE, | |
729 | .name = "si2168", | |
730 | }, | |
731 | .probe = si2168_probe, | |
732 | .remove = si2168_remove, | |
346d4900 | 733 | .id_table = si2168_id_table, |
845f3505 AP |
734 | }; |
735 | ||
736 | module_i2c_driver(si2168_driver); | |
737 | ||
738 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
739 | MODULE_DESCRIPTION("Silicon Labs Si2168 DVB-T/T2/C demodulator driver"); | |
740 | MODULE_LICENSE("GPL"); | |
635a90cf | 741 | MODULE_FIRMWARE(SI2168_A20_FIRMWARE); |
668aa63c | 742 | MODULE_FIRMWARE(SI2168_A30_FIRMWARE); |
c9cb0820 | 743 | MODULE_FIRMWARE(SI2168_B40_FIRMWARE); |