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 | ||
c790885b | 183 | if (c->bandwidth_hz <= 5000000) |
bffab93c | 184 | bandwidth = 0x05; |
c790885b | 185 | else if (c->bandwidth_hz <= 6000000) |
bffab93c | 186 | bandwidth = 0x06; |
c790885b | 187 | else if (c->bandwidth_hz <= 7000000) |
bffab93c | 188 | bandwidth = 0x07; |
c790885b | 189 | else if (c->bandwidth_hz <= 8000000) |
bffab93c | 190 | bandwidth = 0x08; |
c790885b AP |
191 | else if (c->bandwidth_hz <= 9000000) |
192 | bandwidth = 0x09; | |
193 | else if (c->bandwidth_hz <= 10000000) | |
194 | bandwidth = 0x0a; | |
195 | else | |
196 | bandwidth = 0x0f; | |
845f3505 AP |
197 | |
198 | /* program tuner */ | |
199 | if (fe->ops.tuner_ops.set_params) { | |
200 | ret = fe->ops.tuner_ops.set_params(fe); | |
201 | if (ret) | |
202 | goto err; | |
203 | } | |
204 | ||
205 | memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5); | |
206 | cmd.wlen = 5; | |
207 | cmd.rlen = 5; | |
6307b560 | 208 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
209 | if (ret) |
210 | goto err; | |
211 | ||
bffab93c AP |
212 | /* that has no big effect */ |
213 | if (c->delivery_system == SYS_DVBT) | |
214 | memcpy(cmd.args, "\x89\x21\x06\x11\xff\x98", 6); | |
c790885b AP |
215 | else if (c->delivery_system == SYS_DVBC_ANNEX_A) |
216 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\xf0", 6); | |
bffab93c AP |
217 | else if (c->delivery_system == SYS_DVBT2) |
218 | memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6); | |
845f3505 AP |
219 | cmd.wlen = 6; |
220 | cmd.rlen = 3; | |
6307b560 | 221 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
222 | if (ret) |
223 | goto err; | |
224 | ||
e395e573 C |
225 | if (c->delivery_system == SYS_DVBT2) { |
226 | /* select PLP */ | |
227 | cmd.args[0] = 0x52; | |
228 | cmd.args[1] = c->stream_id & 0xff; | |
229 | cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1; | |
230 | cmd.wlen = 3; | |
231 | cmd.rlen = 1; | |
6307b560 | 232 | ret = si2168_cmd_execute(client, &cmd); |
e395e573 C |
233 | if (ret) |
234 | goto err; | |
235 | } | |
236 | ||
845f3505 AP |
237 | memcpy(cmd.args, "\x51\x03", 2); |
238 | cmd.wlen = 2; | |
239 | cmd.rlen = 12; | |
6307b560 | 240 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
241 | if (ret) |
242 | goto err; | |
243 | ||
244 | memcpy(cmd.args, "\x12\x08\x04", 3); | |
245 | cmd.wlen = 3; | |
246 | cmd.rlen = 3; | |
6307b560 | 247 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
248 | if (ret) |
249 | goto err; | |
250 | ||
845f3505 AP |
251 | memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6); |
252 | cmd.wlen = 6; | |
1d518c27 | 253 | cmd.rlen = 4; |
6307b560 | 254 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
255 | if (ret) |
256 | goto err; | |
257 | ||
258 | memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6); | |
259 | cmd.wlen = 6; | |
1d518c27 | 260 | cmd.rlen = 4; |
6307b560 | 261 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
262 | if (ret) |
263 | goto err; | |
264 | ||
845f3505 AP |
265 | memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6); |
266 | cmd.wlen = 6; | |
1d518c27 | 267 | cmd.rlen = 4; |
6307b560 | 268 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
269 | if (ret) |
270 | goto err; | |
271 | ||
272 | memcpy(cmd.args, "\x14\x00\x0a\x10\x00\x00", 6); | |
bffab93c | 273 | cmd.args[4] = delivery_system | bandwidth; |
845f3505 | 274 | cmd.wlen = 6; |
1d518c27 | 275 | cmd.rlen = 4; |
6307b560 | 276 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
277 | if (ret) |
278 | goto err; | |
279 | ||
32bf8818 LA |
280 | /* set DVB-C symbol rate */ |
281 | if (c->delivery_system == SYS_DVBC_ANNEX_A) { | |
282 | memcpy(cmd.args, "\x14\x00\x02\x11", 4); | |
346d4900 | 283 | cmd.args[4] = ((c->symbol_rate / 1000) >> 0) & 0xff; |
32bf8818 LA |
284 | cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff; |
285 | cmd.wlen = 6; | |
286 | cmd.rlen = 4; | |
6307b560 | 287 | ret = si2168_cmd_execute(client, &cmd); |
32bf8818 LA |
288 | if (ret) |
289 | goto err; | |
290 | } | |
291 | ||
845f3505 AP |
292 | memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6); |
293 | cmd.wlen = 6; | |
1d518c27 | 294 | cmd.rlen = 4; |
6307b560 | 295 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
296 | if (ret) |
297 | goto err; | |
298 | ||
52791979 | 299 | memcpy(cmd.args, "\x14\x00\x09\x10\xe3\x08", 6); |
bd01c766 | 300 | cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10; |
845f3505 | 301 | cmd.wlen = 6; |
1d518c27 | 302 | cmd.rlen = 4; |
6307b560 | 303 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
304 | if (ret) |
305 | goto err; | |
306 | ||
52791979 | 307 | memcpy(cmd.args, "\x14\x00\x08\x10\xd7\x05", 6); |
bd01c766 | 308 | cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10; |
845f3505 | 309 | cmd.wlen = 6; |
1d518c27 | 310 | cmd.rlen = 4; |
6307b560 | 311 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
312 | if (ret) |
313 | goto err; | |
314 | ||
315 | memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6); | |
316 | cmd.wlen = 6; | |
1d518c27 | 317 | cmd.rlen = 4; |
6307b560 | 318 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
319 | if (ret) |
320 | goto err; | |
321 | ||
43911776 OS |
322 | memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6); |
323 | cmd.wlen = 6; | |
324 | cmd.rlen = 4; | |
6307b560 | 325 | ret = si2168_cmd_execute(client, &cmd); |
43911776 OS |
326 | if (ret) |
327 | goto err; | |
328 | ||
888680ff | 329 | memcpy(cmd.args, "\x85", 1); |
845f3505 AP |
330 | cmd.wlen = 1; |
331 | cmd.rlen = 1; | |
6307b560 | 332 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
333 | if (ret) |
334 | goto err; | |
335 | ||
bd01c766 | 336 | dev->delivery_system = c->delivery_system; |
845f3505 AP |
337 | |
338 | return 0; | |
339 | err: | |
3de35835 | 340 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
341 | return ret; |
342 | } | |
343 | ||
344 | static int si2168_init(struct dvb_frontend *fe) | |
345 | { | |
6307b560 AP |
346 | struct i2c_client *client = fe->demodulator_priv; |
347 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
348 | int ret, len, remaining; |
349 | const struct firmware *fw = NULL; | |
c9cb0820 | 350 | u8 *fw_file; |
845f3505 AP |
351 | const unsigned int i2c_wr_max = 8; |
352 | struct si2168_cmd cmd; | |
b6b6fd6f | 353 | unsigned int chip_id; |
845f3505 | 354 | |
3de35835 | 355 | dev_dbg(&client->dev, "\n"); |
845f3505 | 356 | |
8e417224 | 357 | /* initialize */ |
888680ff | 358 | memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13); |
845f3505 AP |
359 | cmd.wlen = 13; |
360 | cmd.rlen = 0; | |
6307b560 | 361 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
362 | if (ret) |
363 | goto err; | |
364 | ||
bd01c766 | 365 | if (dev->fw_loaded) { |
8e417224 OS |
366 | /* resume */ |
367 | memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8); | |
368 | cmd.wlen = 8; | |
369 | cmd.rlen = 1; | |
6307b560 | 370 | ret = si2168_cmd_execute(client, &cmd); |
8e417224 OS |
371 | if (ret) |
372 | goto err; | |
373 | ||
374 | memcpy(cmd.args, "\x85", 1); | |
375 | cmd.wlen = 1; | |
376 | cmd.rlen = 1; | |
6307b560 | 377 | ret = si2168_cmd_execute(client, &cmd); |
8e417224 OS |
378 | if (ret) |
379 | goto err; | |
380 | ||
381 | goto warm; | |
382 | } | |
383 | ||
384 | /* power up */ | |
888680ff | 385 | memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8); |
845f3505 AP |
386 | cmd.wlen = 8; |
387 | cmd.rlen = 1; | |
6307b560 | 388 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
389 | if (ret) |
390 | goto err; | |
391 | ||
c9cb0820 | 392 | /* query chip revision */ |
888680ff | 393 | memcpy(cmd.args, "\x02", 1); |
845f3505 AP |
394 | cmd.wlen = 1; |
395 | cmd.rlen = 13; | |
6307b560 | 396 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
397 | if (ret) |
398 | goto err; | |
399 | ||
b6b6fd6f AP |
400 | chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 | |
401 | cmd.args[4] << 0; | |
402 | ||
635a90cf | 403 | #define SI2168_A20 ('A' << 24 | 68 << 16 | '2' << 8 | '0' << 0) |
b6b6fd6f AP |
404 | #define SI2168_A30 ('A' << 24 | 68 << 16 | '3' << 8 | '0' << 0) |
405 | #define SI2168_B40 ('B' << 24 | 68 << 16 | '4' << 8 | '0' << 0) | |
406 | ||
407 | switch (chip_id) { | |
635a90cf LA |
408 | case SI2168_A20: |
409 | fw_file = SI2168_A20_FIRMWARE; | |
410 | break; | |
b6b6fd6f | 411 | case SI2168_A30: |
c9cb0820 | 412 | fw_file = SI2168_A30_FIRMWARE; |
b6b6fd6f AP |
413 | break; |
414 | case SI2168_B40: | |
415 | fw_file = SI2168_B40_FIRMWARE; | |
416 | break; | |
417 | default: | |
3de35835 | 418 | dev_err(&client->dev, |
37b4e43d OS |
419 | "unknown chip version Si21%d-%c%c%c\n", |
420 | cmd.args[2], cmd.args[1], | |
b6b6fd6f | 421 | cmd.args[3], cmd.args[4]); |
c9cb0820 OS |
422 | ret = -EINVAL; |
423 | goto err; | |
424 | } | |
425 | ||
845f3505 | 426 | /* cold state - try to download firmware */ |
3de35835 | 427 | dev_info(&client->dev, "found a '%s' in cold state\n", |
37b4e43d | 428 | si2168_ops.info.name); |
845f3505 AP |
429 | |
430 | /* request the firmware, this will block and timeout */ | |
3de35835 | 431 | ret = request_firmware(&fw, fw_file, &client->dev); |
845f3505 | 432 | if (ret) { |
b6b6fd6f AP |
433 | /* fallback mechanism to handle old name for Si2168 B40 fw */ |
434 | if (chip_id == SI2168_B40) { | |
c9cb0820 | 435 | fw_file = SI2168_B40_FIRMWARE_FALLBACK; |
3de35835 | 436 | ret = request_firmware(&fw, fw_file, &client->dev); |
c9cb0820 | 437 | } |
b6b6fd6f AP |
438 | |
439 | if (ret == 0) { | |
3de35835 | 440 | dev_notice(&client->dev, |
37b4e43d OS |
441 | "please install firmware file '%s'\n", |
442 | SI2168_B40_FIRMWARE); | |
b6b6fd6f | 443 | } else { |
3de35835 | 444 | dev_err(&client->dev, |
37b4e43d OS |
445 | "firmware file '%s' not found\n", |
446 | fw_file); | |
346d4900 | 447 | goto err_release_firmware; |
c9cb0820 | 448 | } |
845f3505 AP |
449 | } |
450 | ||
3de35835 | 451 | dev_info(&client->dev, "downloading firmware from file '%s'\n", |
37b4e43d | 452 | fw_file); |
845f3505 | 453 | |
1b97dc98 OS |
454 | if ((fw->size % 17 == 0) && (fw->data[0] > 5)) { |
455 | /* firmware is in the new format */ | |
456 | for (remaining = fw->size; remaining > 0; remaining -= 17) { | |
457 | len = fw->data[fw->size - remaining]; | |
458 | memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); | |
459 | cmd.wlen = len; | |
460 | cmd.rlen = 1; | |
6307b560 | 461 | ret = si2168_cmd_execute(client, &cmd); |
1b97dc98 | 462 | if (ret) { |
3de35835 | 463 | dev_err(&client->dev, |
1b97dc98 OS |
464 | "firmware download failed=%d\n", |
465 | ret); | |
346d4900 | 466 | goto err_release_firmware; |
1b97dc98 OS |
467 | } |
468 | } | |
469 | } else { | |
470 | /* firmware is in the old format */ | |
471 | for (remaining = fw->size; remaining > 0; remaining -= i2c_wr_max) { | |
472 | len = remaining; | |
473 | if (len > i2c_wr_max) | |
474 | len = i2c_wr_max; | |
475 | ||
476 | memcpy(cmd.args, &fw->data[fw->size - remaining], len); | |
477 | cmd.wlen = len; | |
478 | cmd.rlen = 1; | |
6307b560 | 479 | ret = si2168_cmd_execute(client, &cmd); |
1b97dc98 | 480 | if (ret) { |
3de35835 | 481 | dev_err(&client->dev, |
1b97dc98 OS |
482 | "firmware download failed=%d\n", |
483 | ret); | |
346d4900 | 484 | goto err_release_firmware; |
1b97dc98 | 485 | } |
845f3505 AP |
486 | } |
487 | } | |
488 | ||
489 | release_firmware(fw); | |
490 | fw = NULL; | |
491 | ||
888680ff | 492 | memcpy(cmd.args, "\x01\x01", 2); |
845f3505 AP |
493 | cmd.wlen = 2; |
494 | cmd.rlen = 1; | |
6307b560 | 495 | ret = si2168_cmd_execute(client, &cmd); |
845f3505 AP |
496 | if (ret) |
497 | goto err; | |
498 | ||
a594cf21 OS |
499 | /* query firmware version */ |
500 | memcpy(cmd.args, "\x11", 1); | |
501 | cmd.wlen = 1; | |
502 | cmd.rlen = 10; | |
6307b560 | 503 | ret = si2168_cmd_execute(client, &cmd); |
a594cf21 OS |
504 | if (ret) |
505 | goto err; | |
506 | ||
955e0ab8 | 507 | dev_info(&client->dev, "firmware version: %c.%c.%d\n", |
a594cf21 OS |
508 | cmd.args[6], cmd.args[7], cmd.args[8]); |
509 | ||
389ce398 OS |
510 | /* set ts mode */ |
511 | memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6); | |
bd01c766 | 512 | cmd.args[4] |= dev->ts_mode; |
389ce398 OS |
513 | cmd.wlen = 6; |
514 | cmd.rlen = 4; | |
6307b560 | 515 | ret = si2168_cmd_execute(client, &cmd); |
389ce398 OS |
516 | if (ret) |
517 | goto err; | |
518 | ||
bd01c766 | 519 | dev->fw_loaded = true; |
8e417224 | 520 | |
3de35835 | 521 | dev_info(&client->dev, "found a '%s' in warm state\n", |
8e417224 | 522 | si2168_ops.info.name); |
45c3cbb1 | 523 | warm: |
bd01c766 | 524 | dev->active = true; |
845f3505 AP |
525 | |
526 | return 0; | |
346d4900 | 527 | err_release_firmware: |
034e1ec0 ME |
528 | release_firmware(fw); |
529 | err: | |
3de35835 | 530 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
531 | return ret; |
532 | } | |
533 | ||
534 | static int si2168_sleep(struct dvb_frontend *fe) | |
535 | { | |
6307b560 AP |
536 | struct i2c_client *client = fe->demodulator_priv; |
537 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
4de0ed7c AP |
538 | int ret; |
539 | struct si2168_cmd cmd; | |
845f3505 | 540 | |
3de35835 | 541 | dev_dbg(&client->dev, "\n"); |
845f3505 | 542 | |
bd01c766 | 543 | dev->active = false; |
845f3505 | 544 | |
4de0ed7c AP |
545 | memcpy(cmd.args, "\x13", 1); |
546 | cmd.wlen = 1; | |
547 | cmd.rlen = 0; | |
6307b560 | 548 | ret = si2168_cmd_execute(client, &cmd); |
4de0ed7c AP |
549 | if (ret) |
550 | goto err; | |
551 | ||
845f3505 | 552 | return 0; |
4de0ed7c | 553 | err: |
3de35835 | 554 | dev_dbg(&client->dev, "failed=%d\n", ret); |
4de0ed7c | 555 | return ret; |
845f3505 AP |
556 | } |
557 | ||
558 | static int si2168_get_tune_settings(struct dvb_frontend *fe, | |
559 | struct dvb_frontend_tune_settings *s) | |
560 | { | |
561 | s->min_delay_ms = 900; | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
566 | /* | |
567 | * I2C gate logic | |
568 | * We must use unlocked i2c_transfer() here because I2C lock is already taken | |
569 | * by tuner driver. | |
570 | */ | |
571 | static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan) | |
572 | { | |
6307b560 AP |
573 | struct i2c_client *client = mux_priv; |
574 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
575 | int ret; |
576 | struct i2c_msg gate_open_msg = { | |
3de35835 | 577 | .addr = client->addr, |
845f3505 AP |
578 | .flags = 0, |
579 | .len = 3, | |
580 | .buf = "\xc0\x0d\x01", | |
581 | }; | |
582 | ||
bd01c766 | 583 | mutex_lock(&dev->i2c_mutex); |
845f3505 AP |
584 | |
585 | /* open tuner I2C gate */ | |
3de35835 | 586 | ret = __i2c_transfer(client->adapter, &gate_open_msg, 1); |
845f3505 | 587 | if (ret != 1) { |
3de35835 | 588 | dev_warn(&client->dev, "i2c write failed=%d\n", ret); |
845f3505 AP |
589 | if (ret >= 0) |
590 | ret = -EREMOTEIO; | |
591 | } else { | |
592 | ret = 0; | |
593 | } | |
594 | ||
595 | return ret; | |
596 | } | |
597 | ||
598 | static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan) | |
599 | { | |
6307b560 AP |
600 | struct i2c_client *client = mux_priv; |
601 | struct si2168_dev *dev = i2c_get_clientdata(client); | |
845f3505 AP |
602 | int ret; |
603 | struct i2c_msg gate_close_msg = { | |
3de35835 | 604 | .addr = client->addr, |
845f3505 AP |
605 | .flags = 0, |
606 | .len = 3, | |
607 | .buf = "\xc0\x0d\x00", | |
608 | }; | |
609 | ||
610 | /* close tuner I2C gate */ | |
3de35835 | 611 | ret = __i2c_transfer(client->adapter, &gate_close_msg, 1); |
845f3505 | 612 | if (ret != 1) { |
3de35835 | 613 | dev_warn(&client->dev, "i2c write failed=%d\n", ret); |
845f3505 AP |
614 | if (ret >= 0) |
615 | ret = -EREMOTEIO; | |
616 | } else { | |
617 | ret = 0; | |
618 | } | |
619 | ||
bd01c766 | 620 | mutex_unlock(&dev->i2c_mutex); |
845f3505 AP |
621 | |
622 | return ret; | |
623 | } | |
624 | ||
625 | static const struct dvb_frontend_ops si2168_ops = { | |
c790885b | 626 | .delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A}, |
845f3505 AP |
627 | .info = { |
628 | .name = "Silicon Labs Si2168", | |
f1ecc5d1 AP |
629 | .symbol_rate_min = 1000000, |
630 | .symbol_rate_max = 7200000, | |
845f3505 AP |
631 | .caps = FE_CAN_FEC_1_2 | |
632 | FE_CAN_FEC_2_3 | | |
633 | FE_CAN_FEC_3_4 | | |
634 | FE_CAN_FEC_5_6 | | |
635 | FE_CAN_FEC_7_8 | | |
636 | FE_CAN_FEC_AUTO | | |
637 | FE_CAN_QPSK | | |
638 | FE_CAN_QAM_16 | | |
639 | FE_CAN_QAM_32 | | |
640 | FE_CAN_QAM_64 | | |
641 | FE_CAN_QAM_128 | | |
642 | FE_CAN_QAM_256 | | |
643 | FE_CAN_QAM_AUTO | | |
644 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
645 | FE_CAN_GUARD_INTERVAL_AUTO | | |
646 | FE_CAN_HIERARCHY_AUTO | | |
647 | FE_CAN_MUTE_TS | | |
327eeb3a OS |
648 | FE_CAN_2G_MODULATION | |
649 | FE_CAN_MULTISTREAM | |
845f3505 AP |
650 | }, |
651 | ||
652 | .get_tune_settings = si2168_get_tune_settings, | |
653 | ||
654 | .init = si2168_init, | |
655 | .sleep = si2168_sleep, | |
656 | ||
657 | .set_frontend = si2168_set_frontend, | |
658 | ||
659 | .read_status = si2168_read_status, | |
660 | }; | |
661 | ||
662 | static int si2168_probe(struct i2c_client *client, | |
663 | const struct i2c_device_id *id) | |
664 | { | |
665 | struct si2168_config *config = client->dev.platform_data; | |
bd01c766 | 666 | struct si2168_dev *dev; |
845f3505 | 667 | int ret; |
845f3505 | 668 | |
37b4e43d | 669 | dev_dbg(&client->dev, "\n"); |
845f3505 | 670 | |
bd01c766 AP |
671 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
672 | if (!dev) { | |
845f3505 | 673 | ret = -ENOMEM; |
37b4e43d | 674 | dev_err(&client->dev, "kzalloc() failed\n"); |
346d4900 | 675 | goto err_kfree; |
845f3505 AP |
676 | } |
677 | ||
bd01c766 | 678 | mutex_init(&dev->i2c_mutex); |
845f3505 | 679 | |
845f3505 | 680 | /* create mux i2c adapter for tuner */ |
6307b560 AP |
681 | dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev, |
682 | client, 0, 0, 0, si2168_select, si2168_deselect); | |
bd01c766 | 683 | if (dev->adapter == NULL) { |
4d6efc7a | 684 | ret = -ENODEV; |
346d4900 | 685 | goto err_kfree; |
4d6efc7a | 686 | } |
845f3505 AP |
687 | |
688 | /* create dvb_frontend */ | |
bd01c766 | 689 | memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops)); |
6307b560 | 690 | dev->fe.demodulator_priv = client; |
bd01c766 AP |
691 | *config->i2c_adapter = dev->adapter; |
692 | *config->fe = &dev->fe; | |
693 | dev->ts_mode = config->ts_mode; | |
694 | dev->ts_clock_inv = config->ts_clock_inv; | |
695 | dev->fw_loaded = false; | |
845f3505 | 696 | |
bd01c766 | 697 | i2c_set_clientdata(client, dev); |
845f3505 | 698 | |
346d4900 | 699 | dev_info(&client->dev, "Silicon Labs Si2168 successfully attached\n"); |
845f3505 | 700 | return 0; |
346d4900 | 701 | err_kfree: |
bd01c766 | 702 | kfree(dev); |
37b4e43d | 703 | dev_dbg(&client->dev, "failed=%d\n", ret); |
845f3505 AP |
704 | return ret; |
705 | } | |
706 | ||
707 | static int si2168_remove(struct i2c_client *client) | |
708 | { | |
bd01c766 | 709 | struct si2168_dev *dev = i2c_get_clientdata(client); |
845f3505 | 710 | |
37b4e43d | 711 | dev_dbg(&client->dev, "\n"); |
845f3505 | 712 | |
bd01c766 | 713 | i2c_del_mux_adapter(dev->adapter); |
845f3505 | 714 | |
bd01c766 AP |
715 | dev->fe.ops.release = NULL; |
716 | dev->fe.demodulator_priv = NULL; | |
845f3505 | 717 | |
bd01c766 | 718 | kfree(dev); |
845f3505 AP |
719 | |
720 | return 0; | |
721 | } | |
722 | ||
346d4900 | 723 | static const struct i2c_device_id si2168_id_table[] = { |
845f3505 AP |
724 | {"si2168", 0}, |
725 | {} | |
726 | }; | |
346d4900 | 727 | MODULE_DEVICE_TABLE(i2c, si2168_id_table); |
845f3505 AP |
728 | |
729 | static struct i2c_driver si2168_driver = { | |
730 | .driver = { | |
731 | .owner = THIS_MODULE, | |
732 | .name = "si2168", | |
733 | }, | |
734 | .probe = si2168_probe, | |
735 | .remove = si2168_remove, | |
346d4900 | 736 | .id_table = si2168_id_table, |
845f3505 AP |
737 | }; |
738 | ||
739 | module_i2c_driver(si2168_driver); | |
740 | ||
741 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
742 | MODULE_DESCRIPTION("Silicon Labs Si2168 DVB-T/T2/C demodulator driver"); | |
743 | MODULE_LICENSE("GPL"); | |
635a90cf | 744 | MODULE_FIRMWARE(SI2168_A20_FIRMWARE); |
668aa63c | 745 | MODULE_FIRMWARE(SI2168_A30_FIRMWARE); |
c9cb0820 | 746 | MODULE_FIRMWARE(SI2168_B40_FIRMWARE); |