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 */ | |
22 | static int si2168_cmd_execute(struct si2168 *s, struct si2168_cmd *cmd) | |
23 | { | |
24 | int ret; | |
25 | unsigned long timeout; | |
26 | ||
27 | mutex_lock(&s->i2c_mutex); | |
28 | ||
29 | if (cmd->wlen) { | |
30 | /* write cmd and args for firmware */ | |
31 | ret = i2c_master_send(s->client, cmd->args, cmd->wlen); | |
32 | if (ret < 0) { | |
33 | goto err_mutex_unlock; | |
34 | } else if (ret != cmd->wlen) { | |
35 | ret = -EREMOTEIO; | |
36 | goto err_mutex_unlock; | |
37 | } | |
38 | } | |
39 | ||
40 | if (cmd->rlen) { | |
41 | /* wait cmd execution terminate */ | |
42 | #define TIMEOUT 50 | |
43 | timeout = jiffies + msecs_to_jiffies(TIMEOUT); | |
44 | while (!time_after(jiffies, timeout)) { | |
45 | ret = i2c_master_recv(s->client, cmd->args, cmd->rlen); | |
46 | if (ret < 0) { | |
47 | goto err_mutex_unlock; | |
48 | } else if (ret != cmd->rlen) { | |
49 | ret = -EREMOTEIO; | |
50 | goto err_mutex_unlock; | |
51 | } | |
52 | ||
53 | /* firmware ready? */ | |
54 | if ((cmd->args[0] >> 7) & 0x01) | |
55 | break; | |
56 | } | |
57 | ||
37b4e43d | 58 | dev_dbg(&s->client->dev, "cmd execution took %d ms\n", |
845f3505 AP |
59 | jiffies_to_msecs(jiffies) - |
60 | (jiffies_to_msecs(timeout) - TIMEOUT)); | |
61 | ||
eefae30a | 62 | if (!((cmd->args[0] >> 7) & 0x01)) { |
845f3505 AP |
63 | ret = -ETIMEDOUT; |
64 | goto err_mutex_unlock; | |
65 | } | |
66 | } | |
67 | ||
68 | ret = 0; | |
69 | ||
70 | err_mutex_unlock: | |
71 | mutex_unlock(&s->i2c_mutex); | |
72 | if (ret) | |
73 | goto err; | |
74 | ||
75 | return 0; | |
76 | err: | |
37b4e43d | 77 | dev_dbg(&s->client->dev, "failed=%d\n", ret); |
845f3505 AP |
78 | return ret; |
79 | } | |
80 | ||
81 | static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status) | |
82 | { | |
83 | struct si2168 *s = fe->demodulator_priv; | |
bffab93c | 84 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
845f3505 AP |
85 | int ret; |
86 | struct si2168_cmd cmd; | |
87 | ||
88 | *status = 0; | |
89 | ||
90 | if (!s->active) { | |
91 | ret = -EAGAIN; | |
92 | goto err; | |
93 | } | |
94 | ||
bffab93c AP |
95 | switch (c->delivery_system) { |
96 | case SYS_DVBT: | |
888680ff | 97 | memcpy(cmd.args, "\xa0\x01", 2); |
bffab93c AP |
98 | cmd.wlen = 2; |
99 | cmd.rlen = 13; | |
100 | break; | |
c790885b | 101 | case SYS_DVBC_ANNEX_A: |
888680ff | 102 | memcpy(cmd.args, "\x90\x01", 2); |
c790885b AP |
103 | cmd.wlen = 2; |
104 | cmd.rlen = 9; | |
105 | break; | |
bffab93c | 106 | case SYS_DVBT2: |
888680ff | 107 | memcpy(cmd.args, "\x50\x01", 2); |
bffab93c AP |
108 | cmd.wlen = 2; |
109 | cmd.rlen = 14; | |
110 | break; | |
111 | default: | |
112 | ret = -EINVAL; | |
113 | goto err; | |
114 | } | |
115 | ||
845f3505 AP |
116 | ret = si2168_cmd_execute(s, &cmd); |
117 | if (ret) | |
118 | goto err; | |
119 | ||
120 | /* | |
121 | * Possible values seen, in order from strong signal to weak: | |
122 | * 16 0001 0110 full lock | |
123 | * 1e 0001 1110 partial lock | |
124 | * 1a 0001 1010 partial lock | |
125 | * 18 0001 1000 no lock | |
126 | * | |
127 | * [b3:b1] lock bits | |
128 | * [b4] statistics ready? Set in a few secs after lock is gained. | |
129 | */ | |
130 | ||
722a042d AP |
131 | switch ((cmd.args[2] >> 1) & 0x03) { |
132 | case 0x01: | |
845f3505 AP |
133 | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER; |
134 | break; | |
722a042d | 135 | case 0x03: |
845f3505 AP |
136 | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | |
137 | FE_HAS_SYNC | FE_HAS_LOCK; | |
138 | break; | |
139 | } | |
140 | ||
141 | s->fe_status = *status; | |
142 | ||
88ac8f86 AP |
143 | if (*status & FE_HAS_LOCK) { |
144 | c->cnr.len = 1; | |
145 | c->cnr.stat[0].scale = FE_SCALE_DECIBEL; | |
146 | c->cnr.stat[0].svalue = cmd.args[3] * 1000 / 4; | |
147 | } else { | |
148 | c->cnr.len = 1; | |
149 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
150 | } | |
151 | ||
37b4e43d OS |
152 | dev_dbg(&s->client->dev, "status=%02x args=%*ph\n", |
153 | *status, cmd.rlen, cmd.args); | |
845f3505 AP |
154 | |
155 | return 0; | |
156 | err: | |
37b4e43d | 157 | dev_dbg(&s->client->dev, "failed=%d\n", ret); |
845f3505 AP |
158 | return ret; |
159 | } | |
160 | ||
161 | static int si2168_set_frontend(struct dvb_frontend *fe) | |
162 | { | |
163 | struct si2168 *s = fe->demodulator_priv; | |
164 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
165 | int ret; | |
166 | struct si2168_cmd cmd; | |
bffab93c | 167 | u8 bandwidth, delivery_system; |
845f3505 AP |
168 | |
169 | dev_dbg(&s->client->dev, | |
e395e573 | 170 | "delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%u, stream_id=%d\n", |
37b4e43d | 171 | c->delivery_system, c->modulation, |
845f3505 | 172 | c->frequency, c->bandwidth_hz, c->symbol_rate, |
e395e573 | 173 | c->inversion, c->stream_id); |
845f3505 AP |
174 | |
175 | if (!s->active) { | |
176 | ret = -EAGAIN; | |
177 | goto err; | |
178 | } | |
179 | ||
bffab93c AP |
180 | switch (c->delivery_system) { |
181 | case SYS_DVBT: | |
182 | delivery_system = 0x20; | |
183 | break; | |
c790885b AP |
184 | case SYS_DVBC_ANNEX_A: |
185 | delivery_system = 0x30; | |
186 | break; | |
bffab93c AP |
187 | case SYS_DVBT2: |
188 | delivery_system = 0x70; | |
189 | break; | |
190 | default: | |
191 | ret = -EINVAL; | |
192 | goto err; | |
193 | } | |
194 | ||
c790885b | 195 | if (c->bandwidth_hz <= 5000000) |
bffab93c | 196 | bandwidth = 0x05; |
c790885b | 197 | else if (c->bandwidth_hz <= 6000000) |
bffab93c | 198 | bandwidth = 0x06; |
c790885b | 199 | else if (c->bandwidth_hz <= 7000000) |
bffab93c | 200 | bandwidth = 0x07; |
c790885b | 201 | else if (c->bandwidth_hz <= 8000000) |
bffab93c | 202 | bandwidth = 0x08; |
c790885b AP |
203 | else if (c->bandwidth_hz <= 9000000) |
204 | bandwidth = 0x09; | |
205 | else if (c->bandwidth_hz <= 10000000) | |
206 | bandwidth = 0x0a; | |
207 | else | |
208 | bandwidth = 0x0f; | |
845f3505 AP |
209 | |
210 | /* program tuner */ | |
211 | if (fe->ops.tuner_ops.set_params) { | |
212 | ret = fe->ops.tuner_ops.set_params(fe); | |
213 | if (ret) | |
214 | goto err; | |
215 | } | |
216 | ||
217 | memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5); | |
218 | cmd.wlen = 5; | |
219 | cmd.rlen = 5; | |
220 | ret = si2168_cmd_execute(s, &cmd); | |
221 | if (ret) | |
222 | goto err; | |
223 | ||
bffab93c AP |
224 | /* that has no big effect */ |
225 | if (c->delivery_system == SYS_DVBT) | |
226 | memcpy(cmd.args, "\x89\x21\x06\x11\xff\x98", 6); | |
c790885b AP |
227 | else if (c->delivery_system == SYS_DVBC_ANNEX_A) |
228 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\xf0", 6); | |
bffab93c AP |
229 | else if (c->delivery_system == SYS_DVBT2) |
230 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6); | |
845f3505 AP |
231 | cmd.wlen = 6; |
232 | cmd.rlen = 3; | |
233 | ret = si2168_cmd_execute(s, &cmd); | |
234 | if (ret) | |
235 | goto err; | |
236 | ||
e395e573 C |
237 | if (c->delivery_system == SYS_DVBT2) { |
238 | /* select PLP */ | |
239 | cmd.args[0] = 0x52; | |
240 | cmd.args[1] = c->stream_id & 0xff; | |
241 | cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1; | |
242 | cmd.wlen = 3; | |
243 | cmd.rlen = 1; | |
244 | ret = si2168_cmd_execute(s, &cmd); | |
245 | if (ret) | |
246 | goto err; | |
247 | } | |
248 | ||
845f3505 AP |
249 | memcpy(cmd.args, "\x51\x03", 2); |
250 | cmd.wlen = 2; | |
251 | cmd.rlen = 12; | |
252 | ret = si2168_cmd_execute(s, &cmd); | |
253 | if (ret) | |
254 | goto err; | |
255 | ||
256 | memcpy(cmd.args, "\x12\x08\x04", 3); | |
257 | cmd.wlen = 3; | |
258 | cmd.rlen = 3; | |
259 | ret = si2168_cmd_execute(s, &cmd); | |
260 | if (ret) | |
261 | goto err; | |
262 | ||
845f3505 AP |
263 | memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6); |
264 | cmd.wlen = 6; | |
1d518c27 | 265 | cmd.rlen = 4; |
845f3505 AP |
266 | ret = si2168_cmd_execute(s, &cmd); |
267 | if (ret) | |
268 | goto err; | |
269 | ||
270 | memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6); | |
271 | cmd.wlen = 6; | |
1d518c27 | 272 | cmd.rlen = 4; |
845f3505 AP |
273 | ret = si2168_cmd_execute(s, &cmd); |
274 | if (ret) | |
275 | goto err; | |
276 | ||
845f3505 AP |
277 | memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6); |
278 | cmd.wlen = 6; | |
1d518c27 | 279 | cmd.rlen = 4; |
845f3505 AP |
280 | ret = si2168_cmd_execute(s, &cmd); |
281 | if (ret) | |
282 | goto err; | |
283 | ||
284 | memcpy(cmd.args, "\x14\x00\x0a\x10\x00\x00", 6); | |
bffab93c | 285 | cmd.args[4] = delivery_system | bandwidth; |
845f3505 | 286 | cmd.wlen = 6; |
1d518c27 | 287 | cmd.rlen = 4; |
845f3505 AP |
288 | ret = si2168_cmd_execute(s, &cmd); |
289 | if (ret) | |
290 | goto err; | |
291 | ||
32bf8818 LA |
292 | /* set DVB-C symbol rate */ |
293 | if (c->delivery_system == SYS_DVBC_ANNEX_A) { | |
294 | memcpy(cmd.args, "\x14\x00\x02\x11", 4); | |
295 | cmd.args[4] = (c->symbol_rate / 1000) & 0xff; | |
296 | cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff; | |
297 | cmd.wlen = 6; | |
298 | cmd.rlen = 4; | |
299 | ret = si2168_cmd_execute(s, &cmd); | |
300 | if (ret) | |
301 | goto err; | |
302 | } | |
303 | ||
845f3505 AP |
304 | memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6); |
305 | cmd.wlen = 6; | |
1d518c27 | 306 | cmd.rlen = 4; |
845f3505 AP |
307 | ret = si2168_cmd_execute(s, &cmd); |
308 | if (ret) | |
309 | goto err; | |
310 | ||
845f3505 AP |
311 | memcpy(cmd.args, "\x14\x00\x09\x10\xe3\x18", 6); |
312 | cmd.wlen = 6; | |
1d518c27 | 313 | cmd.rlen = 4; |
845f3505 AP |
314 | ret = si2168_cmd_execute(s, &cmd); |
315 | if (ret) | |
316 | goto err; | |
317 | ||
318 | memcpy(cmd.args, "\x14\x00\x08\x10\xd7\x15", 6); | |
319 | cmd.wlen = 6; | |
1d518c27 | 320 | cmd.rlen = 4; |
845f3505 | 321 | ret = si2168_cmd_execute(s, &cmd); |
845f3505 AP |
322 | if (ret) |
323 | goto err; | |
324 | ||
325 | memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6); | |
326 | cmd.wlen = 6; | |
1d518c27 | 327 | cmd.rlen = 4; |
845f3505 AP |
328 | ret = si2168_cmd_execute(s, &cmd); |
329 | if (ret) | |
330 | goto err; | |
331 | ||
43911776 OS |
332 | memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6); |
333 | cmd.wlen = 6; | |
334 | cmd.rlen = 4; | |
335 | ret = si2168_cmd_execute(s, &cmd); | |
336 | if (ret) | |
337 | goto err; | |
338 | ||
888680ff | 339 | memcpy(cmd.args, "\x85", 1); |
845f3505 AP |
340 | cmd.wlen = 1; |
341 | cmd.rlen = 1; | |
342 | ret = si2168_cmd_execute(s, &cmd); | |
343 | if (ret) | |
344 | goto err; | |
345 | ||
346 | s->delivery_system = c->delivery_system; | |
347 | ||
348 | return 0; | |
349 | err: | |
37b4e43d | 350 | dev_dbg(&s->client->dev, "failed=%d\n", ret); |
845f3505 AP |
351 | return ret; |
352 | } | |
353 | ||
354 | static int si2168_init(struct dvb_frontend *fe) | |
355 | { | |
356 | struct si2168 *s = fe->demodulator_priv; | |
357 | int ret, len, remaining; | |
358 | const struct firmware *fw = NULL; | |
c9cb0820 | 359 | u8 *fw_file; |
845f3505 AP |
360 | const unsigned int i2c_wr_max = 8; |
361 | struct si2168_cmd cmd; | |
b6b6fd6f | 362 | unsigned int chip_id; |
845f3505 | 363 | |
37b4e43d | 364 | dev_dbg(&s->client->dev, "\n"); |
845f3505 | 365 | |
8e417224 | 366 | /* initialize */ |
888680ff | 367 | memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13); |
845f3505 AP |
368 | cmd.wlen = 13; |
369 | cmd.rlen = 0; | |
370 | ret = si2168_cmd_execute(s, &cmd); | |
371 | if (ret) | |
372 | goto err; | |
373 | ||
8e417224 OS |
374 | if (s->fw_loaded) { |
375 | /* resume */ | |
376 | memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8); | |
377 | cmd.wlen = 8; | |
378 | cmd.rlen = 1; | |
379 | ret = si2168_cmd_execute(s, &cmd); | |
380 | if (ret) | |
381 | goto err; | |
382 | ||
383 | memcpy(cmd.args, "\x85", 1); | |
384 | cmd.wlen = 1; | |
385 | cmd.rlen = 1; | |
386 | ret = si2168_cmd_execute(s, &cmd); | |
387 | if (ret) | |
388 | goto err; | |
389 | ||
390 | goto warm; | |
391 | } | |
392 | ||
393 | /* power up */ | |
888680ff | 394 | memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8); |
845f3505 AP |
395 | cmd.wlen = 8; |
396 | cmd.rlen = 1; | |
397 | ret = si2168_cmd_execute(s, &cmd); | |
398 | if (ret) | |
399 | goto err; | |
400 | ||
c9cb0820 | 401 | /* query chip revision */ |
888680ff | 402 | memcpy(cmd.args, "\x02", 1); |
845f3505 AP |
403 | cmd.wlen = 1; |
404 | cmd.rlen = 13; | |
405 | ret = si2168_cmd_execute(s, &cmd); | |
406 | if (ret) | |
407 | goto err; | |
408 | ||
b6b6fd6f AP |
409 | chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 | |
410 | cmd.args[4] << 0; | |
411 | ||
635a90cf | 412 | #define SI2168_A20 ('A' << 24 | 68 << 16 | '2' << 8 | '0' << 0) |
b6b6fd6f AP |
413 | #define SI2168_A30 ('A' << 24 | 68 << 16 | '3' << 8 | '0' << 0) |
414 | #define SI2168_B40 ('B' << 24 | 68 << 16 | '4' << 8 | '0' << 0) | |
415 | ||
416 | switch (chip_id) { | |
635a90cf LA |
417 | case SI2168_A20: |
418 | fw_file = SI2168_A20_FIRMWARE; | |
419 | break; | |
b6b6fd6f | 420 | case SI2168_A30: |
c9cb0820 | 421 | fw_file = SI2168_A30_FIRMWARE; |
b6b6fd6f AP |
422 | break; |
423 | case SI2168_B40: | |
424 | fw_file = SI2168_B40_FIRMWARE; | |
425 | break; | |
426 | default: | |
c9cb0820 | 427 | dev_err(&s->client->dev, |
37b4e43d OS |
428 | "unknown chip version Si21%d-%c%c%c\n", |
429 | cmd.args[2], cmd.args[1], | |
b6b6fd6f | 430 | cmd.args[3], cmd.args[4]); |
c9cb0820 OS |
431 | ret = -EINVAL; |
432 | goto err; | |
433 | } | |
434 | ||
845f3505 | 435 | /* cold state - try to download firmware */ |
37b4e43d OS |
436 | dev_info(&s->client->dev, "found a '%s' in cold state\n", |
437 | si2168_ops.info.name); | |
845f3505 AP |
438 | |
439 | /* request the firmware, this will block and timeout */ | |
440 | ret = request_firmware(&fw, fw_file, &s->client->dev); | |
441 | if (ret) { | |
b6b6fd6f AP |
442 | /* fallback mechanism to handle old name for Si2168 B40 fw */ |
443 | if (chip_id == SI2168_B40) { | |
c9cb0820 OS |
444 | fw_file = SI2168_B40_FIRMWARE_FALLBACK; |
445 | ret = request_firmware(&fw, fw_file, &s->client->dev); | |
446 | } | |
b6b6fd6f AP |
447 | |
448 | if (ret == 0) { | |
449 | dev_notice(&s->client->dev, | |
37b4e43d OS |
450 | "please install firmware file '%s'\n", |
451 | SI2168_B40_FIRMWARE); | |
b6b6fd6f AP |
452 | } else { |
453 | dev_err(&s->client->dev, | |
37b4e43d OS |
454 | "firmware file '%s' not found\n", |
455 | fw_file); | |
c9cb0820 OS |
456 | goto err; |
457 | } | |
845f3505 AP |
458 | } |
459 | ||
37b4e43d OS |
460 | dev_info(&s->client->dev, "downloading firmware from file '%s'\n", |
461 | fw_file); | |
845f3505 AP |
462 | |
463 | for (remaining = fw->size; remaining > 0; remaining -= i2c_wr_max) { | |
464 | len = remaining; | |
465 | if (len > i2c_wr_max) | |
466 | len = i2c_wr_max; | |
467 | ||
468 | memcpy(cmd.args, &fw->data[fw->size - remaining], len); | |
469 | cmd.wlen = len; | |
470 | cmd.rlen = 1; | |
471 | ret = si2168_cmd_execute(s, &cmd); | |
472 | if (ret) { | |
473 | dev_err(&s->client->dev, | |
37b4e43d OS |
474 | "firmware download failed=%d\n", |
475 | ret); | |
845f3505 AP |
476 | goto err; |
477 | } | |
478 | } | |
479 | ||
480 | release_firmware(fw); | |
481 | fw = NULL; | |
482 | ||
888680ff | 483 | memcpy(cmd.args, "\x01\x01", 2); |
845f3505 AP |
484 | cmd.wlen = 2; |
485 | cmd.rlen = 1; | |
486 | ret = si2168_cmd_execute(s, &cmd); | |
487 | if (ret) | |
488 | goto err; | |
489 | ||
389ce398 OS |
490 | /* set ts mode */ |
491 | memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6); | |
492 | cmd.args[4] |= s->ts_mode; | |
493 | cmd.wlen = 6; | |
494 | cmd.rlen = 4; | |
495 | ret = si2168_cmd_execute(s, &cmd); | |
496 | if (ret) | |
497 | goto err; | |
498 | ||
8e417224 OS |
499 | s->fw_loaded = true; |
500 | ||
501 | warm: | |
502 | dev_info(&s->client->dev, "found a '%s' in warm state\n", | |
503 | si2168_ops.info.name); | |
504 | ||
845f3505 AP |
505 | s->active = true; |
506 | ||
507 | return 0; | |
508 | err: | |
509 | if (fw) | |
510 | release_firmware(fw); | |
511 | ||
37b4e43d | 512 | dev_dbg(&s->client->dev, "failed=%d\n", ret); |
845f3505 AP |
513 | return ret; |
514 | } | |
515 | ||
516 | static int si2168_sleep(struct dvb_frontend *fe) | |
517 | { | |
518 | struct si2168 *s = fe->demodulator_priv; | |
4de0ed7c AP |
519 | int ret; |
520 | struct si2168_cmd cmd; | |
845f3505 | 521 | |
37b4e43d | 522 | dev_dbg(&s->client->dev, "\n"); |
845f3505 AP |
523 | |
524 | s->active = false; | |
525 | ||
4de0ed7c AP |
526 | memcpy(cmd.args, "\x13", 1); |
527 | cmd.wlen = 1; | |
528 | cmd.rlen = 0; | |
529 | ret = si2168_cmd_execute(s, &cmd); | |
530 | if (ret) | |
531 | goto err; | |
532 | ||
845f3505 | 533 | return 0; |
4de0ed7c | 534 | err: |
37b4e43d | 535 | dev_dbg(&s->client->dev, "failed=%d\n", ret); |
4de0ed7c | 536 | return ret; |
845f3505 AP |
537 | } |
538 | ||
539 | static int si2168_get_tune_settings(struct dvb_frontend *fe, | |
540 | struct dvb_frontend_tune_settings *s) | |
541 | { | |
542 | s->min_delay_ms = 900; | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | /* | |
548 | * I2C gate logic | |
549 | * We must use unlocked i2c_transfer() here because I2C lock is already taken | |
550 | * by tuner driver. | |
551 | */ | |
552 | static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan) | |
553 | { | |
554 | struct si2168 *s = mux_priv; | |
555 | int ret; | |
556 | struct i2c_msg gate_open_msg = { | |
557 | .addr = s->client->addr, | |
558 | .flags = 0, | |
559 | .len = 3, | |
560 | .buf = "\xc0\x0d\x01", | |
561 | }; | |
562 | ||
563 | mutex_lock(&s->i2c_mutex); | |
564 | ||
565 | /* open tuner I2C gate */ | |
566 | ret = __i2c_transfer(s->client->adapter, &gate_open_msg, 1); | |
567 | if (ret != 1) { | |
37b4e43d | 568 | dev_warn(&s->client->dev, "i2c write failed=%d\n", ret); |
845f3505 AP |
569 | if (ret >= 0) |
570 | ret = -EREMOTEIO; | |
571 | } else { | |
572 | ret = 0; | |
573 | } | |
574 | ||
575 | return ret; | |
576 | } | |
577 | ||
578 | static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan) | |
579 | { | |
580 | struct si2168 *s = mux_priv; | |
581 | int ret; | |
582 | struct i2c_msg gate_close_msg = { | |
583 | .addr = s->client->addr, | |
584 | .flags = 0, | |
585 | .len = 3, | |
586 | .buf = "\xc0\x0d\x00", | |
587 | }; | |
588 | ||
589 | /* close tuner I2C gate */ | |
590 | ret = __i2c_transfer(s->client->adapter, &gate_close_msg, 1); | |
591 | if (ret != 1) { | |
37b4e43d | 592 | dev_warn(&s->client->dev, "i2c write failed=%d\n", ret); |
845f3505 AP |
593 | if (ret >= 0) |
594 | ret = -EREMOTEIO; | |
595 | } else { | |
596 | ret = 0; | |
597 | } | |
598 | ||
599 | mutex_unlock(&s->i2c_mutex); | |
600 | ||
601 | return ret; | |
602 | } | |
603 | ||
604 | static const struct dvb_frontend_ops si2168_ops = { | |
c790885b | 605 | .delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A}, |
845f3505 AP |
606 | .info = { |
607 | .name = "Silicon Labs Si2168", | |
608 | .caps = FE_CAN_FEC_1_2 | | |
609 | FE_CAN_FEC_2_3 | | |
610 | FE_CAN_FEC_3_4 | | |
611 | FE_CAN_FEC_5_6 | | |
612 | FE_CAN_FEC_7_8 | | |
613 | FE_CAN_FEC_AUTO | | |
614 | FE_CAN_QPSK | | |
615 | FE_CAN_QAM_16 | | |
616 | FE_CAN_QAM_32 | | |
617 | FE_CAN_QAM_64 | | |
618 | FE_CAN_QAM_128 | | |
619 | FE_CAN_QAM_256 | | |
620 | FE_CAN_QAM_AUTO | | |
621 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
622 | FE_CAN_GUARD_INTERVAL_AUTO | | |
623 | FE_CAN_HIERARCHY_AUTO | | |
624 | FE_CAN_MUTE_TS | | |
327eeb3a OS |
625 | FE_CAN_2G_MODULATION | |
626 | FE_CAN_MULTISTREAM | |
845f3505 AP |
627 | }, |
628 | ||
629 | .get_tune_settings = si2168_get_tune_settings, | |
630 | ||
631 | .init = si2168_init, | |
632 | .sleep = si2168_sleep, | |
633 | ||
634 | .set_frontend = si2168_set_frontend, | |
635 | ||
636 | .read_status = si2168_read_status, | |
637 | }; | |
638 | ||
639 | static int si2168_probe(struct i2c_client *client, | |
640 | const struct i2c_device_id *id) | |
641 | { | |
642 | struct si2168_config *config = client->dev.platform_data; | |
643 | struct si2168 *s; | |
644 | int ret; | |
845f3505 | 645 | |
37b4e43d | 646 | dev_dbg(&client->dev, "\n"); |
845f3505 AP |
647 | |
648 | s = kzalloc(sizeof(struct si2168), GFP_KERNEL); | |
649 | if (!s) { | |
650 | ret = -ENOMEM; | |
37b4e43d | 651 | dev_err(&client->dev, "kzalloc() failed\n"); |
845f3505 AP |
652 | goto err; |
653 | } | |
654 | ||
655 | s->client = client; | |
656 | mutex_init(&s->i2c_mutex); | |
657 | ||
845f3505 AP |
658 | /* create mux i2c adapter for tuner */ |
659 | s->adapter = i2c_add_mux_adapter(client->adapter, &client->dev, s, | |
660 | 0, 0, 0, si2168_select, si2168_deselect); | |
4d6efc7a LA |
661 | if (s->adapter == NULL) { |
662 | ret = -ENODEV; | |
845f3505 | 663 | goto err; |
4d6efc7a | 664 | } |
845f3505 AP |
665 | |
666 | /* create dvb_frontend */ | |
667 | memcpy(&s->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops)); | |
668 | s->fe.demodulator_priv = s; | |
669 | ||
670 | *config->i2c_adapter = s->adapter; | |
671 | *config->fe = &s->fe; | |
389ce398 | 672 | s->ts_mode = config->ts_mode; |
8e417224 | 673 | s->fw_loaded = false; |
845f3505 AP |
674 | |
675 | i2c_set_clientdata(client, s); | |
676 | ||
677 | dev_info(&s->client->dev, | |
37b4e43d | 678 | "Silicon Labs Si2168 successfully attached\n"); |
845f3505 AP |
679 | return 0; |
680 | err: | |
681 | kfree(s); | |
37b4e43d | 682 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
683 | return ret; |
684 | } | |
685 | ||
686 | static int si2168_remove(struct i2c_client *client) | |
687 | { | |
688 | struct si2168 *s = i2c_get_clientdata(client); | |
689 | ||
37b4e43d | 690 | dev_dbg(&client->dev, "\n"); |
845f3505 AP |
691 | |
692 | i2c_del_mux_adapter(s->adapter); | |
693 | ||
694 | s->fe.ops.release = NULL; | |
695 | s->fe.demodulator_priv = NULL; | |
696 | ||
697 | kfree(s); | |
698 | ||
699 | return 0; | |
700 | } | |
701 | ||
702 | static const struct i2c_device_id si2168_id[] = { | |
703 | {"si2168", 0}, | |
704 | {} | |
705 | }; | |
706 | MODULE_DEVICE_TABLE(i2c, si2168_id); | |
707 | ||
708 | static struct i2c_driver si2168_driver = { | |
709 | .driver = { | |
710 | .owner = THIS_MODULE, | |
711 | .name = "si2168", | |
712 | }, | |
713 | .probe = si2168_probe, | |
714 | .remove = si2168_remove, | |
715 | .id_table = si2168_id, | |
716 | }; | |
717 | ||
718 | module_i2c_driver(si2168_driver); | |
719 | ||
720 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
721 | MODULE_DESCRIPTION("Silicon Labs Si2168 DVB-T/T2/C demodulator driver"); | |
722 | MODULE_LICENSE("GPL"); | |
635a90cf | 723 | MODULE_FIRMWARE(SI2168_A20_FIRMWARE); |
668aa63c | 724 | MODULE_FIRMWARE(SI2168_A30_FIRMWARE); |
c9cb0820 | 725 | MODULE_FIRMWARE(SI2168_B40_FIRMWARE); |