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 | ||
380a6c86 RE |
17 | #include <linux/delay.h> |
18 | ||
845f3505 AP |
19 | #include "si2168_priv.h" |
20 | ||
21 | static const struct dvb_frontend_ops si2168_ops; | |
22 | ||
23 | /* execute firmware command */ | |
e6d7ffcd | 24 | static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd) |
845f3505 | 25 | { |
e6d7ffcd | 26 | struct si2168_dev *dev = i2c_get_clientdata(client); |
845f3505 AP |
27 | int ret; |
28 | unsigned long timeout; | |
29 | ||
e6d7ffcd AP |
30 | mutex_lock(&dev->i2c_mutex); |
31 | ||
845f3505 AP |
32 | if (cmd->wlen) { |
33 | /* write cmd and args for firmware */ | |
e6d7ffcd | 34 | ret = i2c_master_send(client, cmd->args, cmd->wlen); |
845f3505 | 35 | if (ret < 0) { |
e6d7ffcd | 36 | goto err_mutex_unlock; |
845f3505 AP |
37 | } else if (ret != cmd->wlen) { |
38 | ret = -EREMOTEIO; | |
e6d7ffcd | 39 | goto err_mutex_unlock; |
845f3505 AP |
40 | } |
41 | } | |
42 | ||
43 | if (cmd->rlen) { | |
44 | /* wait cmd execution terminate */ | |
551c33e7 | 45 | #define TIMEOUT 70 |
845f3505 AP |
46 | timeout = jiffies + msecs_to_jiffies(TIMEOUT); |
47 | while (!time_after(jiffies, timeout)) { | |
e6d7ffcd | 48 | ret = i2c_master_recv(client, cmd->args, cmd->rlen); |
845f3505 | 49 | if (ret < 0) { |
e6d7ffcd | 50 | goto err_mutex_unlock; |
845f3505 AP |
51 | } else if (ret != cmd->rlen) { |
52 | ret = -EREMOTEIO; | |
e6d7ffcd | 53 | goto err_mutex_unlock; |
845f3505 AP |
54 | } |
55 | ||
56 | /* firmware ready? */ | |
57 | if ((cmd->args[0] >> 7) & 0x01) | |
58 | break; | |
59 | } | |
60 | ||
3de35835 | 61 | dev_dbg(&client->dev, "cmd execution took %d ms\n", |
845f3505 AP |
62 | jiffies_to_msecs(jiffies) - |
63 | (jiffies_to_msecs(timeout) - TIMEOUT)); | |
64 | ||
7adf99d2 OS |
65 | /* error bit set? */ |
66 | if ((cmd->args[0] >> 6) & 0x01) { | |
67 | ret = -EREMOTEIO; | |
e6d7ffcd | 68 | goto err_mutex_unlock; |
7adf99d2 OS |
69 | } |
70 | ||
eefae30a | 71 | if (!((cmd->args[0] >> 7) & 0x01)) { |
845f3505 | 72 | ret = -ETIMEDOUT; |
e6d7ffcd | 73 | goto err_mutex_unlock; |
845f3505 AP |
74 | } |
75 | } | |
76 | ||
e6d7ffcd | 77 | mutex_unlock(&dev->i2c_mutex); |
4affbe1d | 78 | return 0; |
e6d7ffcd AP |
79 | err_mutex_unlock: |
80 | mutex_unlock(&dev->i2c_mutex); | |
3de35835 | 81 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
82 | return ret; |
83 | } | |
84 | ||
1844f498 BL |
85 | static int si2168_ts_bus_ctrl(struct dvb_frontend *fe, int acquire) |
86 | { | |
87 | struct i2c_client *client = fe->demodulator_priv; | |
88 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
89 | struct si2168_cmd cmd; | |
90 | int ret = 0; | |
91 | ||
92 | dev_dbg(&client->dev, "%s acquire: %d\n", __func__, acquire); | |
93 | ||
94 | /* set TS_MODE property */ | |
95 | memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6); | |
96 | if (acquire) | |
97 | cmd.args[4] |= dev->ts_mode; | |
98 | else | |
99 | cmd.args[4] |= SI2168_TS_TRISTATE; | |
100 | if (dev->ts_clock_gapped) | |
101 | cmd.args[4] |= 0x40; | |
102 | cmd.wlen = 6; | |
103 | cmd.rlen = 4; | |
104 | ret = si2168_cmd_execute(client, &cmd); | |
105 | ||
106 | return ret; | |
107 | } | |
108 | ||
0df289a2 | 109 | static int si2168_read_status(struct dvb_frontend *fe, enum fe_status *status) |
845f3505 | 110 | { |
6307b560 AP |
111 | struct i2c_client *client = fe->demodulator_priv; |
112 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
bffab93c | 113 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
8393c003 AP |
114 | int ret, i; |
115 | unsigned int utmp, utmp1, utmp2; | |
845f3505 AP |
116 | struct si2168_cmd cmd; |
117 | ||
118 | *status = 0; | |
119 | ||
bd01c766 | 120 | if (!dev->active) { |
845f3505 AP |
121 | ret = -EAGAIN; |
122 | goto err; | |
123 | } | |
124 | ||
bffab93c AP |
125 | switch (c->delivery_system) { |
126 | case SYS_DVBT: | |
888680ff | 127 | memcpy(cmd.args, "\xa0\x01", 2); |
bffab93c AP |
128 | cmd.wlen = 2; |
129 | cmd.rlen = 13; | |
130 | break; | |
c790885b | 131 | case SYS_DVBC_ANNEX_A: |
888680ff | 132 | memcpy(cmd.args, "\x90\x01", 2); |
c790885b AP |
133 | cmd.wlen = 2; |
134 | cmd.rlen = 9; | |
135 | break; | |
bffab93c | 136 | case SYS_DVBT2: |
888680ff | 137 | memcpy(cmd.args, "\x50\x01", 2); |
bffab93c AP |
138 | cmd.wlen = 2; |
139 | cmd.rlen = 14; | |
140 | break; | |
141 | default: | |
142 | ret = -EINVAL; | |
143 | goto err; | |
144 | } | |
145 | ||
6307b560 | 146 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
147 | if (ret) |
148 | goto err; | |
149 | ||
722a042d AP |
150 | switch ((cmd.args[2] >> 1) & 0x03) { |
151 | case 0x01: | |
845f3505 AP |
152 | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER; |
153 | break; | |
722a042d | 154 | case 0x03: |
845f3505 AP |
155 | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | |
156 | FE_HAS_SYNC | FE_HAS_LOCK; | |
157 | break; | |
158 | } | |
159 | ||
bd01c766 | 160 | dev->fe_status = *status; |
845f3505 | 161 | |
88ac8f86 AP |
162 | if (*status & FE_HAS_LOCK) { |
163 | c->cnr.len = 1; | |
164 | c->cnr.stat[0].scale = FE_SCALE_DECIBEL; | |
165 | c->cnr.stat[0].svalue = cmd.args[3] * 1000 / 4; | |
166 | } else { | |
167 | c->cnr.len = 1; | |
168 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
169 | } | |
170 | ||
3de35835 | 171 | dev_dbg(&client->dev, "status=%02x args=%*ph\n", |
37b4e43d | 172 | *status, cmd.rlen, cmd.args); |
845f3505 | 173 | |
8393c003 AP |
174 | /* BER */ |
175 | if (*status & FE_HAS_VITERBI) { | |
176 | memcpy(cmd.args, "\x82\x00", 2); | |
177 | cmd.wlen = 2; | |
178 | cmd.rlen = 3; | |
179 | ret = si2168_cmd_execute(client, &cmd); | |
180 | if (ret) | |
181 | goto err; | |
182 | ||
183 | /* | |
184 | * Firmware returns [0, 255] mantissa and [0, 8] exponent. | |
185 | * Convert to DVB API: mantissa * 10^(8 - exponent) / 10^8 | |
186 | */ | |
187 | utmp = clamp(8 - cmd.args[1], 0, 8); | |
188 | for (i = 0, utmp1 = 1; i < utmp; i++) | |
189 | utmp1 = utmp1 * 10; | |
190 | ||
191 | utmp1 = cmd.args[2] * utmp1; | |
192 | utmp2 = 100000000; /* 10^8 */ | |
193 | ||
194 | dev_dbg(&client->dev, | |
195 | "post_bit_error=%u post_bit_count=%u ber=%u*10^-%u\n", | |
196 | utmp1, utmp2, cmd.args[2], cmd.args[1]); | |
197 | ||
198 | c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; | |
199 | c->post_bit_error.stat[0].uvalue += utmp1; | |
200 | c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; | |
201 | c->post_bit_count.stat[0].uvalue += utmp2; | |
202 | } else { | |
203 | c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
204 | c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
205 | } | |
206 | ||
c62d29c8 AP |
207 | /* UCB */ |
208 | if (*status & FE_HAS_SYNC) { | |
209 | memcpy(cmd.args, "\x84\x01", 2); | |
210 | cmd.wlen = 2; | |
211 | cmd.rlen = 3; | |
212 | ret = si2168_cmd_execute(client, &cmd); | |
213 | if (ret) | |
214 | goto err; | |
215 | ||
216 | utmp1 = cmd.args[2] << 8 | cmd.args[1] << 0; | |
217 | dev_dbg(&client->dev, "block_error=%u\n", utmp1); | |
218 | ||
219 | /* Sometimes firmware returns bogus value */ | |
220 | if (utmp1 == 0xffff) | |
221 | utmp1 = 0; | |
222 | ||
223 | c->block_error.stat[0].scale = FE_SCALE_COUNTER; | |
224 | c->block_error.stat[0].uvalue += utmp1; | |
225 | } else { | |
226 | c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
227 | } | |
228 | ||
845f3505 AP |
229 | return 0; |
230 | err: | |
3de35835 | 231 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
232 | return ret; |
233 | } | |
234 | ||
235 | static int si2168_set_frontend(struct dvb_frontend *fe) | |
236 | { | |
6307b560 AP |
237 | struct i2c_client *client = fe->demodulator_priv; |
238 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
239 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
240 | int ret; | |
241 | struct si2168_cmd cmd; | |
bffab93c | 242 | u8 bandwidth, delivery_system; |
845f3505 | 243 | |
3de35835 | 244 | dev_dbg(&client->dev, |
e5dd1100 AP |
245 | "delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%u stream_id=%u\n", |
246 | c->delivery_system, c->modulation, c->frequency, | |
247 | c->bandwidth_hz, c->symbol_rate, c->inversion, | |
248 | c->stream_id); | |
845f3505 | 249 | |
bd01c766 | 250 | if (!dev->active) { |
845f3505 AP |
251 | ret = -EAGAIN; |
252 | goto err; | |
253 | } | |
254 | ||
bffab93c AP |
255 | switch (c->delivery_system) { |
256 | case SYS_DVBT: | |
257 | delivery_system = 0x20; | |
258 | break; | |
c790885b AP |
259 | case SYS_DVBC_ANNEX_A: |
260 | delivery_system = 0x30; | |
261 | break; | |
bffab93c AP |
262 | case SYS_DVBT2: |
263 | delivery_system = 0x70; | |
264 | break; | |
265 | default: | |
266 | ret = -EINVAL; | |
267 | goto err; | |
268 | } | |
269 | ||
683e98b6 OS |
270 | if (c->bandwidth_hz == 0) { |
271 | ret = -EINVAL; | |
272 | goto err; | |
17d4d6ae OS |
273 | } else if (c->bandwidth_hz <= 2000000) |
274 | bandwidth = 0x02; | |
275 | else if (c->bandwidth_hz <= 5000000) | |
bffab93c | 276 | bandwidth = 0x05; |
c790885b | 277 | else if (c->bandwidth_hz <= 6000000) |
bffab93c | 278 | bandwidth = 0x06; |
c790885b | 279 | else if (c->bandwidth_hz <= 7000000) |
bffab93c | 280 | bandwidth = 0x07; |
c790885b | 281 | else if (c->bandwidth_hz <= 8000000) |
bffab93c | 282 | bandwidth = 0x08; |
c790885b AP |
283 | else if (c->bandwidth_hz <= 9000000) |
284 | bandwidth = 0x09; | |
285 | else if (c->bandwidth_hz <= 10000000) | |
286 | bandwidth = 0x0a; | |
287 | else | |
288 | bandwidth = 0x0f; | |
845f3505 AP |
289 | |
290 | /* program tuner */ | |
291 | if (fe->ops.tuner_ops.set_params) { | |
292 | ret = fe->ops.tuner_ops.set_params(fe); | |
293 | if (ret) | |
294 | goto err; | |
295 | } | |
296 | ||
297 | memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5); | |
298 | cmd.wlen = 5; | |
299 | cmd.rlen = 5; | |
6307b560 | 300 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
301 | if (ret) |
302 | goto err; | |
303 | ||
bffab93c AP |
304 | /* that has no big effect */ |
305 | if (c->delivery_system == SYS_DVBT) | |
306 | memcpy(cmd.args, "\x89\x21\x06\x11\xff\x98", 6); | |
c790885b AP |
307 | else if (c->delivery_system == SYS_DVBC_ANNEX_A) |
308 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\xf0", 6); | |
bffab93c AP |
309 | else if (c->delivery_system == SYS_DVBT2) |
310 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6); | |
845f3505 AP |
311 | cmd.wlen = 6; |
312 | cmd.rlen = 3; | |
6307b560 | 313 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
314 | if (ret) |
315 | goto err; | |
316 | ||
e395e573 C |
317 | if (c->delivery_system == SYS_DVBT2) { |
318 | /* select PLP */ | |
319 | cmd.args[0] = 0x52; | |
320 | cmd.args[1] = c->stream_id & 0xff; | |
321 | cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1; | |
322 | cmd.wlen = 3; | |
323 | cmd.rlen = 1; | |
6307b560 | 324 | ret = si2168_cmd_execute(client, &cmd); |
e395e573 C |
325 | if (ret) |
326 | goto err; | |
327 | } | |
328 | ||
845f3505 AP |
329 | memcpy(cmd.args, "\x51\x03", 2); |
330 | cmd.wlen = 2; | |
331 | cmd.rlen = 12; | |
6307b560 | 332 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
333 | if (ret) |
334 | goto err; | |
335 | ||
336 | memcpy(cmd.args, "\x12\x08\x04", 3); | |
337 | cmd.wlen = 3; | |
338 | cmd.rlen = 3; | |
6307b560 | 339 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
340 | if (ret) |
341 | goto err; | |
342 | ||
845f3505 AP |
343 | memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6); |
344 | cmd.wlen = 6; | |
1d518c27 | 345 | cmd.rlen = 4; |
6307b560 | 346 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
347 | if (ret) |
348 | goto err; | |
349 | ||
350 | memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6); | |
351 | cmd.wlen = 6; | |
1d518c27 | 352 | cmd.rlen = 4; |
6307b560 | 353 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
354 | if (ret) |
355 | goto err; | |
356 | ||
845f3505 AP |
357 | memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6); |
358 | cmd.wlen = 6; | |
1d518c27 | 359 | cmd.rlen = 4; |
6307b560 | 360 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
361 | if (ret) |
362 | goto err; | |
363 | ||
364 | memcpy(cmd.args, "\x14\x00\x0a\x10\x00\x00", 6); | |
bffab93c | 365 | cmd.args[4] = delivery_system | bandwidth; |
d4c779bc BL |
366 | if (dev->spectral_inversion) |
367 | cmd.args[5] |= 1; | |
845f3505 | 368 | cmd.wlen = 6; |
1d518c27 | 369 | cmd.rlen = 4; |
6307b560 | 370 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
371 | if (ret) |
372 | goto err; | |
373 | ||
32bf8818 LA |
374 | /* set DVB-C symbol rate */ |
375 | if (c->delivery_system == SYS_DVBC_ANNEX_A) { | |
376 | memcpy(cmd.args, "\x14\x00\x02\x11", 4); | |
346d4900 | 377 | cmd.args[4] = ((c->symbol_rate / 1000) >> 0) & 0xff; |
32bf8818 LA |
378 | cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff; |
379 | cmd.wlen = 6; | |
380 | cmd.rlen = 4; | |
6307b560 | 381 | ret = si2168_cmd_execute(client, &cmd); |
32bf8818 LA |
382 | if (ret) |
383 | goto err; | |
384 | } | |
385 | ||
845f3505 AP |
386 | memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6); |
387 | cmd.wlen = 6; | |
1d518c27 | 388 | cmd.rlen = 4; |
6307b560 | 389 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
390 | if (ret) |
391 | goto err; | |
392 | ||
52791979 | 393 | memcpy(cmd.args, "\x14\x00\x09\x10\xe3\x08", 6); |
bd01c766 | 394 | cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10; |
845f3505 | 395 | cmd.wlen = 6; |
1d518c27 | 396 | cmd.rlen = 4; |
6307b560 | 397 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
398 | if (ret) |
399 | goto err; | |
400 | ||
52791979 | 401 | memcpy(cmd.args, "\x14\x00\x08\x10\xd7\x05", 6); |
bd01c766 | 402 | cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10; |
845f3505 | 403 | cmd.wlen = 6; |
1d518c27 | 404 | cmd.rlen = 4; |
6307b560 | 405 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
406 | if (ret) |
407 | goto err; | |
408 | ||
409 | memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6); | |
410 | cmd.wlen = 6; | |
1d518c27 | 411 | cmd.rlen = 4; |
6307b560 | 412 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
413 | if (ret) |
414 | goto err; | |
415 | ||
43911776 OS |
416 | memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6); |
417 | cmd.wlen = 6; | |
418 | cmd.rlen = 4; | |
6307b560 | 419 | ret = si2168_cmd_execute(client, &cmd); |
43911776 OS |
420 | if (ret) |
421 | goto err; | |
422 | ||
888680ff | 423 | memcpy(cmd.args, "\x85", 1); |
845f3505 AP |
424 | cmd.wlen = 1; |
425 | cmd.rlen = 1; | |
6307b560 | 426 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
427 | if (ret) |
428 | goto err; | |
429 | ||
bd01c766 | 430 | dev->delivery_system = c->delivery_system; |
845f3505 | 431 | |
1844f498 BL |
432 | /* enable ts bus */ |
433 | ret = si2168_ts_bus_ctrl(fe, 1); | |
434 | if (ret) | |
435 | goto err; | |
436 | ||
845f3505 AP |
437 | return 0; |
438 | err: | |
3de35835 | 439 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
440 | return ret; |
441 | } | |
442 | ||
443 | static int si2168_init(struct dvb_frontend *fe) | |
444 | { | |
6307b560 AP |
445 | struct i2c_client *client = fe->demodulator_priv; |
446 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
8393c003 | 447 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
845f3505 | 448 | int ret, len, remaining; |
58f6693f | 449 | const struct firmware *fw; |
845f3505 AP |
450 | struct si2168_cmd cmd; |
451 | ||
3de35835 | 452 | dev_dbg(&client->dev, "\n"); |
845f3505 | 453 | |
8e417224 | 454 | /* initialize */ |
888680ff | 455 | memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13); |
845f3505 AP |
456 | cmd.wlen = 13; |
457 | cmd.rlen = 0; | |
6307b560 | 458 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
459 | if (ret) |
460 | goto err; | |
461 | ||
6ab1e943 | 462 | if (dev->warm) { |
8e417224 OS |
463 | /* resume */ |
464 | memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8); | |
465 | cmd.wlen = 8; | |
466 | cmd.rlen = 1; | |
6307b560 | 467 | ret = si2168_cmd_execute(client, &cmd); |
8e417224 OS |
468 | if (ret) |
469 | goto err; | |
470 | ||
380a6c86 | 471 | udelay(100); |
8e417224 OS |
472 | memcpy(cmd.args, "\x85", 1); |
473 | cmd.wlen = 1; | |
474 | cmd.rlen = 1; | |
6307b560 | 475 | ret = si2168_cmd_execute(client, &cmd); |
8e417224 OS |
476 | if (ret) |
477 | goto err; | |
478 | ||
479 | goto warm; | |
480 | } | |
481 | ||
482 | /* power up */ | |
888680ff | 483 | memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8); |
845f3505 AP |
484 | cmd.wlen = 8; |
485 | cmd.rlen = 1; | |
6307b560 | 486 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
487 | if (ret) |
488 | goto err; | |
489 | ||
845f3505 | 490 | /* request the firmware, this will block and timeout */ |
6ab1e943 | 491 | ret = request_firmware(&fw, dev->firmware_name, &client->dev); |
845f3505 | 492 | if (ret) { |
b6b6fd6f | 493 | /* fallback mechanism to handle old name for Si2168 B40 fw */ |
6ab1e943 AP |
494 | if (dev->chip_id == SI2168_CHIP_ID_B40) { |
495 | dev->firmware_name = SI2168_B40_FIRMWARE_FALLBACK; | |
496 | ret = request_firmware(&fw, dev->firmware_name, | |
497 | &client->dev); | |
c9cb0820 | 498 | } |
b6b6fd6f AP |
499 | |
500 | if (ret == 0) { | |
3de35835 | 501 | dev_notice(&client->dev, |
37b4e43d OS |
502 | "please install firmware file '%s'\n", |
503 | SI2168_B40_FIRMWARE); | |
b6b6fd6f | 504 | } else { |
3de35835 | 505 | dev_err(&client->dev, |
37b4e43d | 506 | "firmware file '%s' not found\n", |
6ab1e943 | 507 | dev->firmware_name); |
346d4900 | 508 | goto err_release_firmware; |
c9cb0820 | 509 | } |
845f3505 AP |
510 | } |
511 | ||
3de35835 | 512 | dev_info(&client->dev, "downloading firmware from file '%s'\n", |
6ab1e943 | 513 | dev->firmware_name); |
845f3505 | 514 | |
1b97dc98 OS |
515 | if ((fw->size % 17 == 0) && (fw->data[0] > 5)) { |
516 | /* firmware is in the new format */ | |
517 | for (remaining = fw->size; remaining > 0; remaining -= 17) { | |
518 | len = fw->data[fw->size - remaining]; | |
47810b43 LA |
519 | if (len > SI2168_ARGLEN) { |
520 | ret = -EINVAL; | |
521 | break; | |
522 | } | |
1b97dc98 OS |
523 | memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); |
524 | cmd.wlen = len; | |
525 | cmd.rlen = 1; | |
6307b560 | 526 | ret = si2168_cmd_execute(client, &cmd); |
68c16a76 AP |
527 | if (ret) |
528 | break; | |
1b97dc98 | 529 | } |
68c16a76 | 530 | } else if (fw->size % 8 == 0) { |
1b97dc98 | 531 | /* firmware is in the old format */ |
68c16a76 AP |
532 | for (remaining = fw->size; remaining > 0; remaining -= 8) { |
533 | len = 8; | |
1b97dc98 OS |
534 | memcpy(cmd.args, &fw->data[fw->size - remaining], len); |
535 | cmd.wlen = len; | |
536 | cmd.rlen = 1; | |
6307b560 | 537 | ret = si2168_cmd_execute(client, &cmd); |
68c16a76 AP |
538 | if (ret) |
539 | break; | |
845f3505 | 540 | } |
68c16a76 AP |
541 | } else { |
542 | /* bad or unknown firmware format */ | |
543 | ret = -EINVAL; | |
544 | } | |
545 | ||
546 | if (ret) { | |
547 | dev_err(&client->dev, "firmware download failed %d\n", ret); | |
548 | goto err_release_firmware; | |
845f3505 AP |
549 | } |
550 | ||
551 | release_firmware(fw); | |
845f3505 | 552 | |
888680ff | 553 | memcpy(cmd.args, "\x01\x01", 2); |
845f3505 AP |
554 | cmd.wlen = 2; |
555 | cmd.rlen = 1; | |
6307b560 | 556 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
557 | if (ret) |
558 | goto err; | |
559 | ||
a594cf21 OS |
560 | /* query firmware version */ |
561 | memcpy(cmd.args, "\x11", 1); | |
562 | cmd.wlen = 1; | |
563 | cmd.rlen = 10; | |
6307b560 | 564 | ret = si2168_cmd_execute(client, &cmd); |
a594cf21 OS |
565 | if (ret) |
566 | goto err; | |
567 | ||
6ab1e943 AP |
568 | dev->version = (cmd.args[9] + '@') << 24 | (cmd.args[6] - '0') << 16 | |
569 | (cmd.args[7] - '0') << 8 | (cmd.args[8]) << 0; | |
570 | dev_info(&client->dev, "firmware version: %c %d.%d.%d\n", | |
571 | dev->version >> 24 & 0xff, dev->version >> 16 & 0xff, | |
572 | dev->version >> 8 & 0xff, dev->version >> 0 & 0xff); | |
a594cf21 | 573 | |
1844f498 | 574 | /* set ts mode */ |
44587774 | 575 | ret = si2168_ts_bus_ctrl(fe, 1); |
389ce398 OS |
576 | if (ret) |
577 | goto err; | |
578 | ||
6ab1e943 | 579 | dev->warm = true; |
45c3cbb1 | 580 | warm: |
8393c003 AP |
581 | /* Init stats here to indicate which stats are supported */ |
582 | c->cnr.len = 1; | |
583 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
584 | c->post_bit_error.len = 1; | |
585 | c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
586 | c->post_bit_count.len = 1; | |
587 | c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
c62d29c8 AP |
588 | c->block_error.len = 1; |
589 | c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
8393c003 | 590 | |
bd01c766 | 591 | dev->active = true; |
845f3505 AP |
592 | |
593 | return 0; | |
346d4900 | 594 | err_release_firmware: |
034e1ec0 ME |
595 | release_firmware(fw); |
596 | err: | |
3de35835 | 597 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
598 | return ret; |
599 | } | |
600 | ||
601 | static int si2168_sleep(struct dvb_frontend *fe) | |
602 | { | |
6307b560 AP |
603 | struct i2c_client *client = fe->demodulator_priv; |
604 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
4de0ed7c AP |
605 | int ret; |
606 | struct si2168_cmd cmd; | |
845f3505 | 607 | |
3de35835 | 608 | dev_dbg(&client->dev, "\n"); |
845f3505 | 609 | |
bd01c766 | 610 | dev->active = false; |
845f3505 | 611 | |
44587774 | 612 | /* tri-state data bus */ |
1844f498 BL |
613 | ret = si2168_ts_bus_ctrl(fe, 0); |
614 | if (ret) | |
615 | goto err; | |
44587774 | 616 | |
fce61d1d | 617 | /* Firmware later than B 4.0-11 loses warm state during sleep */ |
6ab1e943 AP |
618 | if (dev->version > ('B' << 24 | 4 << 16 | 0 << 8 | 11 << 0)) |
619 | dev->warm = false; | |
620 | ||
4de0ed7c AP |
621 | memcpy(cmd.args, "\x13", 1); |
622 | cmd.wlen = 1; | |
623 | cmd.rlen = 0; | |
6307b560 | 624 | ret = si2168_cmd_execute(client, &cmd); |
4de0ed7c AP |
625 | if (ret) |
626 | goto err; | |
627 | ||
845f3505 | 628 | return 0; |
4de0ed7c | 629 | err: |
3de35835 | 630 | dev_dbg(&client->dev, "failed=%d\n", ret); |
4de0ed7c | 631 | return ret; |
845f3505 AP |
632 | } |
633 | ||
634 | static int si2168_get_tune_settings(struct dvb_frontend *fe, | |
635 | struct dvb_frontend_tune_settings *s) | |
636 | { | |
637 | s->min_delay_ms = 900; | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
58d7b541 | 642 | static int si2168_select(struct i2c_mux_core *muxc, u32 chan) |
845f3505 | 643 | { |
58d7b541 | 644 | struct i2c_client *client = i2c_mux_priv(muxc); |
845f3505 | 645 | int ret; |
d2b72f64 | 646 | struct si2168_cmd cmd; |
845f3505 | 647 | |
d2b72f64 AP |
648 | /* open I2C gate */ |
649 | memcpy(cmd.args, "\xc0\x0d\x01", 3); | |
650 | cmd.wlen = 3; | |
651 | cmd.rlen = 0; | |
e6d7ffcd | 652 | ret = si2168_cmd_execute(client, &cmd); |
d2b72f64 AP |
653 | if (ret) |
654 | goto err; | |
845f3505 | 655 | |
d2b72f64 AP |
656 | return 0; |
657 | err: | |
658 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
845f3505 AP |
659 | return ret; |
660 | } | |
661 | ||
58d7b541 | 662 | static int si2168_deselect(struct i2c_mux_core *muxc, u32 chan) |
845f3505 | 663 | { |
58d7b541 | 664 | struct i2c_client *client = i2c_mux_priv(muxc); |
845f3505 | 665 | int ret; |
d2b72f64 | 666 | struct si2168_cmd cmd; |
845f3505 | 667 | |
d2b72f64 AP |
668 | /* close I2C gate */ |
669 | memcpy(cmd.args, "\xc0\x0d\x00", 3); | |
670 | cmd.wlen = 3; | |
671 | cmd.rlen = 0; | |
e6d7ffcd | 672 | ret = si2168_cmd_execute(client, &cmd); |
d2b72f64 AP |
673 | if (ret) |
674 | goto err; | |
845f3505 | 675 | |
d2b72f64 AP |
676 | return 0; |
677 | err: | |
678 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
845f3505 AP |
679 | return ret; |
680 | } | |
681 | ||
682 | static const struct dvb_frontend_ops si2168_ops = { | |
c790885b | 683 | .delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A}, |
845f3505 AP |
684 | .info = { |
685 | .name = "Silicon Labs Si2168", | |
f1ecc5d1 AP |
686 | .symbol_rate_min = 1000000, |
687 | .symbol_rate_max = 7200000, | |
845f3505 AP |
688 | .caps = FE_CAN_FEC_1_2 | |
689 | FE_CAN_FEC_2_3 | | |
690 | FE_CAN_FEC_3_4 | | |
691 | FE_CAN_FEC_5_6 | | |
692 | FE_CAN_FEC_7_8 | | |
693 | FE_CAN_FEC_AUTO | | |
694 | FE_CAN_QPSK | | |
695 | FE_CAN_QAM_16 | | |
696 | FE_CAN_QAM_32 | | |
697 | FE_CAN_QAM_64 | | |
698 | FE_CAN_QAM_128 | | |
699 | FE_CAN_QAM_256 | | |
700 | FE_CAN_QAM_AUTO | | |
701 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
702 | FE_CAN_GUARD_INTERVAL_AUTO | | |
703 | FE_CAN_HIERARCHY_AUTO | | |
704 | FE_CAN_MUTE_TS | | |
327eeb3a OS |
705 | FE_CAN_2G_MODULATION | |
706 | FE_CAN_MULTISTREAM | |
845f3505 AP |
707 | }, |
708 | ||
709 | .get_tune_settings = si2168_get_tune_settings, | |
710 | ||
711 | .init = si2168_init, | |
712 | .sleep = si2168_sleep, | |
713 | ||
714 | .set_frontend = si2168_set_frontend, | |
715 | ||
716 | .read_status = si2168_read_status, | |
717 | }; | |
718 | ||
719 | static int si2168_probe(struct i2c_client *client, | |
720 | const struct i2c_device_id *id) | |
721 | { | |
722 | struct si2168_config *config = client->dev.platform_data; | |
bd01c766 | 723 | struct si2168_dev *dev; |
845f3505 | 724 | int ret; |
6ab1e943 | 725 | struct si2168_cmd cmd; |
845f3505 | 726 | |
37b4e43d | 727 | dev_dbg(&client->dev, "\n"); |
845f3505 | 728 | |
bd01c766 AP |
729 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
730 | if (!dev) { | |
845f3505 | 731 | ret = -ENOMEM; |
1ee5e7dd | 732 | goto err; |
845f3505 AP |
733 | } |
734 | ||
6ab1e943 | 735 | i2c_set_clientdata(client, dev); |
e6d7ffcd AP |
736 | mutex_init(&dev->i2c_mutex); |
737 | ||
6ab1e943 AP |
738 | /* Initialize */ |
739 | memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13); | |
740 | cmd.wlen = 13; | |
741 | cmd.rlen = 0; | |
742 | ret = si2168_cmd_execute(client, &cmd); | |
743 | if (ret) | |
744 | goto err_kfree; | |
745 | ||
746 | /* Power up */ | |
747 | memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8); | |
748 | cmd.wlen = 8; | |
749 | cmd.rlen = 1; | |
750 | ret = si2168_cmd_execute(client, &cmd); | |
751 | if (ret) | |
752 | goto err_kfree; | |
753 | ||
754 | /* Query chip revision */ | |
755 | memcpy(cmd.args, "\x02", 1); | |
756 | cmd.wlen = 1; | |
757 | cmd.rlen = 13; | |
758 | ret = si2168_cmd_execute(client, &cmd); | |
759 | if (ret) | |
760 | goto err_kfree; | |
761 | ||
762 | dev->chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | | |
763 | cmd.args[3] << 8 | cmd.args[4] << 0; | |
764 | ||
765 | switch (dev->chip_id) { | |
766 | case SI2168_CHIP_ID_A20: | |
767 | dev->firmware_name = SI2168_A20_FIRMWARE; | |
768 | break; | |
769 | case SI2168_CHIP_ID_A30: | |
770 | dev->firmware_name = SI2168_A30_FIRMWARE; | |
771 | break; | |
772 | case SI2168_CHIP_ID_B40: | |
773 | dev->firmware_name = SI2168_B40_FIRMWARE; | |
774 | break; | |
50d64462 EP |
775 | case SI2168_CHIP_ID_D60: |
776 | dev->firmware_name = SI2168_D60_FIRMWARE; | |
777 | break; | |
6ab1e943 AP |
778 | default: |
779 | dev_dbg(&client->dev, "unknown chip version Si21%d-%c%c%c\n", | |
780 | cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]); | |
781 | ret = -ENODEV; | |
782 | goto err_kfree; | |
783 | } | |
784 | ||
785 | dev->version = (cmd.args[1]) << 24 | (cmd.args[3] - '0') << 16 | | |
786 | (cmd.args[4] - '0') << 8 | (cmd.args[5]) << 0; | |
787 | ||
845f3505 | 788 | /* create mux i2c adapter for tuner */ |
58d7b541 | 789 | dev->muxc = i2c_mux_alloc(client->adapter, &client->dev, |
e6d7ffcd | 790 | 1, 0, I2C_MUX_LOCKED, |
58d7b541 PR |
791 | si2168_select, si2168_deselect); |
792 | if (!dev->muxc) { | |
793 | ret = -ENOMEM; | |
346d4900 | 794 | goto err_kfree; |
4d6efc7a | 795 | } |
58d7b541 PR |
796 | dev->muxc->priv = client; |
797 | ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0); | |
798 | if (ret) | |
799 | goto err_kfree; | |
845f3505 AP |
800 | |
801 | /* create dvb_frontend */ | |
bd01c766 | 802 | memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops)); |
6307b560 | 803 | dev->fe.demodulator_priv = client; |
58d7b541 | 804 | *config->i2c_adapter = dev->muxc->adapter[0]; |
bd01c766 AP |
805 | *config->fe = &dev->fe; |
806 | dev->ts_mode = config->ts_mode; | |
807 | dev->ts_clock_inv = config->ts_clock_inv; | |
8117a312 | 808 | dev->ts_clock_gapped = config->ts_clock_gapped; |
d4c779bc | 809 | dev->spectral_inversion = config->spectral_inversion; |
845f3505 | 810 | |
6ab1e943 AP |
811 | dev_info(&client->dev, "Silicon Labs Si2168-%c%d%d successfully identified\n", |
812 | dev->version >> 24 & 0xff, dev->version >> 16 & 0xff, | |
813 | dev->version >> 8 & 0xff); | |
814 | dev_info(&client->dev, "firmware version: %c %d.%d.%d\n", | |
815 | dev->version >> 24 & 0xff, dev->version >> 16 & 0xff, | |
816 | dev->version >> 8 & 0xff, dev->version >> 0 & 0xff); | |
845f3505 | 817 | |
845f3505 | 818 | return 0; |
346d4900 | 819 | err_kfree: |
bd01c766 | 820 | kfree(dev); |
1ee5e7dd | 821 | err: |
3061df06 | 822 | dev_warn(&client->dev, "probe failed = %d\n", ret); |
845f3505 AP |
823 | return ret; |
824 | } | |
825 | ||
826 | static int si2168_remove(struct i2c_client *client) | |
827 | { | |
bd01c766 | 828 | struct si2168_dev *dev = i2c_get_clientdata(client); |
845f3505 | 829 | |
37b4e43d | 830 | dev_dbg(&client->dev, "\n"); |
845f3505 | 831 | |
58d7b541 | 832 | i2c_mux_del_adapters(dev->muxc); |
845f3505 | 833 | |
bd01c766 AP |
834 | dev->fe.ops.release = NULL; |
835 | dev->fe.demodulator_priv = NULL; | |
845f3505 | 836 | |
bd01c766 | 837 | kfree(dev); |
845f3505 AP |
838 | |
839 | return 0; | |
840 | } | |
841 | ||
346d4900 | 842 | static const struct i2c_device_id si2168_id_table[] = { |
845f3505 AP |
843 | {"si2168", 0}, |
844 | {} | |
845 | }; | |
346d4900 | 846 | MODULE_DEVICE_TABLE(i2c, si2168_id_table); |
845f3505 AP |
847 | |
848 | static struct i2c_driver si2168_driver = { | |
849 | .driver = { | |
e06be1da AP |
850 | .name = "si2168", |
851 | .suppress_bind_attrs = true, | |
845f3505 AP |
852 | }, |
853 | .probe = si2168_probe, | |
854 | .remove = si2168_remove, | |
346d4900 | 855 | .id_table = si2168_id_table, |
845f3505 AP |
856 | }; |
857 | ||
858 | module_i2c_driver(si2168_driver); | |
859 | ||
860 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
861 | MODULE_DESCRIPTION("Silicon Labs Si2168 DVB-T/T2/C demodulator driver"); | |
862 | MODULE_LICENSE("GPL"); | |
635a90cf | 863 | MODULE_FIRMWARE(SI2168_A20_FIRMWARE); |
668aa63c | 864 | MODULE_FIRMWARE(SI2168_A30_FIRMWARE); |
c9cb0820 | 865 | MODULE_FIRMWARE(SI2168_B40_FIRMWARE); |
50d64462 | 866 | MODULE_FIRMWARE(SI2168_D60_FIRMWARE); |