Commit | Line | Data |
---|---|---|
ba92ae0f | 1 | /* |
17ad09f1 | 2 | * Silicon Labs Si2146/2147/2148/2157/2158 silicon tuner driver |
ba92ae0f AP |
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 | ||
930a8730 AP |
17 | #include "si2157_priv.h" |
18 | ||
1b92373f OS |
19 | static const struct dvb_tuner_ops si2157_ops; |
20 | ||
930a8730 | 21 | /* execute firmware command */ |
8fe51725 | 22 | static int si2157_cmd_execute(struct i2c_client *client, struct si2157_cmd *cmd) |
930a8730 | 23 | { |
8fe51725 | 24 | struct si2157_dev *dev = i2c_get_clientdata(client); |
930a8730 | 25 | int ret; |
930a8730 AP |
26 | unsigned long timeout; |
27 | ||
70f13ff0 | 28 | mutex_lock(&dev->i2c_mutex); |
930a8730 | 29 | |
e6b4380f | 30 | if (cmd->wlen) { |
930a8730 | 31 | /* write cmd and args for firmware */ |
8fe51725 | 32 | ret = i2c_master_send(client, cmd->args, cmd->wlen); |
930a8730 AP |
33 | if (ret < 0) { |
34 | goto err_mutex_unlock; | |
e6b4380f | 35 | } else if (ret != cmd->wlen) { |
930a8730 AP |
36 | ret = -EREMOTEIO; |
37 | goto err_mutex_unlock; | |
38 | } | |
39 | } | |
40 | ||
e6b4380f AP |
41 | if (cmd->rlen) { |
42 | /* wait cmd execution terminate */ | |
43 | #define TIMEOUT 80 | |
44 | timeout = jiffies + msecs_to_jiffies(TIMEOUT); | |
45 | while (!time_after(jiffies, timeout)) { | |
8fe51725 | 46 | ret = i2c_master_recv(client, cmd->args, cmd->rlen); |
e6b4380f 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; | |
930a8730 AP |
57 | } |
58 | ||
8fe51725 | 59 | dev_dbg(&client->dev, "cmd execution took %d ms\n", |
e6b4380f AP |
60 | jiffies_to_msecs(jiffies) - |
61 | (jiffies_to_msecs(timeout) - TIMEOUT)); | |
930a8730 | 62 | |
e6b4380f AP |
63 | if (!((cmd->args[0] >> 7) & 0x01)) { |
64 | ret = -ETIMEDOUT; | |
65 | goto err_mutex_unlock; | |
66 | } | |
930a8730 AP |
67 | } |
68 | ||
7cbf5d76 AP |
69 | mutex_unlock(&dev->i2c_mutex); |
70 | return 0; | |
e6b4380f | 71 | |
930a8730 | 72 | err_mutex_unlock: |
70f13ff0 | 73 | mutex_unlock(&dev->i2c_mutex); |
8fe51725 | 74 | dev_dbg(&client->dev, "failed=%d\n", ret); |
930a8730 AP |
75 | return ret; |
76 | } | |
77 | ||
78 | static int si2157_init(struct dvb_frontend *fe) | |
79 | { | |
8fe51725 AP |
80 | struct i2c_client *client = fe->tuner_priv; |
81 | struct si2157_dev *dev = i2c_get_clientdata(client); | |
7d6bc608 | 82 | int ret, len, remaining; |
b154121c | 83 | struct si2157_cmd cmd; |
78dab40a | 84 | const struct firmware *fw; |
08272db6 | 85 | const char *fw_name; |
7d6bc608 | 86 | unsigned int chip_id; |
930a8730 | 87 | |
8fe51725 | 88 | dev_dbg(&client->dev, "\n"); |
930a8730 | 89 | |
70f13ff0 | 90 | if (dev->fw_loaded) |
4cbf6ed9 OS |
91 | goto warm; |
92 | ||
93 | /* power up */ | |
70f13ff0 | 94 | if (dev->chiptype == SI2157_CHIPTYPE_SI2146) { |
073f3849 OS |
95 | memcpy(cmd.args, "\xc0\x05\x01\x00\x00\x0b\x00\x00\x01", 9); |
96 | cmd.wlen = 9; | |
97 | } else { | |
98 | memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15); | |
99 | cmd.wlen = 15; | |
100 | } | |
b154121c | 101 | cmd.rlen = 1; |
8fe51725 | 102 | ret = si2157_cmd_execute(client, &cmd); |
b154121c OS |
103 | if (ret) |
104 | goto err; | |
105 | ||
106 | /* query chip revision */ | |
107 | memcpy(cmd.args, "\x02", 1); | |
108 | cmd.wlen = 1; | |
109 | cmd.rlen = 13; | |
8fe51725 | 110 | ret = si2157_cmd_execute(client, &cmd); |
b154121c OS |
111 | if (ret) |
112 | goto err; | |
113 | ||
7d6bc608 AP |
114 | chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 | |
115 | cmd.args[4] << 0; | |
116 | ||
117 | #define SI2158_A20 ('A' << 24 | 58 << 16 | '2' << 8 | '0' << 0) | |
17ad09f1 | 118 | #define SI2148_A20 ('A' << 24 | 48 << 16 | '2' << 8 | '0' << 0) |
7d6bc608 | 119 | #define SI2157_A30 ('A' << 24 | 57 << 16 | '3' << 8 | '0' << 0) |
d87a5058 | 120 | #define SI2147_A30 ('A' << 24 | 47 << 16 | '3' << 8 | '0' << 0) |
073f3849 | 121 | #define SI2146_A10 ('A' << 24 | 46 << 16 | '1' << 8 | '0' << 0) |
7d6bc608 AP |
122 | |
123 | switch (chip_id) { | |
124 | case SI2158_A20: | |
17ad09f1 | 125 | case SI2148_A20: |
08272db6 | 126 | fw_name = SI2158_A20_FIRMWARE; |
7d6bc608 AP |
127 | break; |
128 | case SI2157_A30: | |
d87a5058 | 129 | case SI2147_A30: |
073f3849 | 130 | case SI2146_A10: |
08272db6 | 131 | fw_name = NULL; |
6c372533 | 132 | break; |
7d6bc608 | 133 | default: |
8fe51725 | 134 | dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n", |
67d0113a | 135 | cmd.args[2], cmd.args[1], |
7d6bc608 AP |
136 | cmd.args[3], cmd.args[4]); |
137 | ret = -EINVAL; | |
138 | goto err; | |
139 | } | |
1b92373f | 140 | |
6c372533 AP |
141 | dev_info(&client->dev, "found a 'Silicon Labs Si21%d-%c%c%c'\n", |
142 | cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]); | |
143 | ||
08272db6 | 144 | if (fw_name == NULL) |
6c372533 | 145 | goto skip_fw_download; |
1b92373f | 146 | |
7d6bc608 | 147 | /* request the firmware, this will block and timeout */ |
08272db6 | 148 | ret = request_firmware(&fw, fw_name, &client->dev); |
7d6bc608 | 149 | if (ret) { |
8fe51725 | 150 | dev_err(&client->dev, "firmware file '%s' not found\n", |
08272db6 | 151 | fw_name); |
7d6bc608 AP |
152 | goto err; |
153 | } | |
1b92373f | 154 | |
7d6bc608 AP |
155 | /* firmware should be n chunks of 17 bytes */ |
156 | if (fw->size % 17 != 0) { | |
8fe51725 | 157 | dev_err(&client->dev, "firmware file '%s' is invalid\n", |
08272db6 | 158 | fw_name); |
7d6bc608 | 159 | ret = -EINVAL; |
78dab40a | 160 | goto err_release_firmware; |
7d6bc608 | 161 | } |
1b92373f | 162 | |
8fe51725 | 163 | dev_info(&client->dev, "downloading firmware from file '%s'\n", |
08272db6 | 164 | fw_name); |
1b92373f | 165 | |
7d6bc608 AP |
166 | for (remaining = fw->size; remaining > 0; remaining -= 17) { |
167 | len = fw->data[fw->size - remaining]; | |
168 | memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); | |
169 | cmd.wlen = len; | |
170 | cmd.rlen = 1; | |
8fe51725 | 171 | ret = si2157_cmd_execute(client, &cmd); |
7d6bc608 | 172 | if (ret) { |
8fe51725 | 173 | dev_err(&client->dev, "firmware download failed %d\n", |
67d0113a | 174 | ret); |
78dab40a | 175 | goto err_release_firmware; |
1b92373f | 176 | } |
1b92373f OS |
177 | } |
178 | ||
7d6bc608 | 179 | release_firmware(fw); |
7d6bc608 AP |
180 | |
181 | skip_fw_download: | |
b154121c OS |
182 | /* reboot the tuner with new firmware? */ |
183 | memcpy(cmd.args, "\x01\x01", 2); | |
184 | cmd.wlen = 2; | |
185 | cmd.rlen = 1; | |
8fe51725 | 186 | ret = si2157_cmd_execute(client, &cmd); |
b154121c OS |
187 | if (ret) |
188 | goto err; | |
189 | ||
c7011845 AP |
190 | /* query firmware version */ |
191 | memcpy(cmd.args, "\x11", 1); | |
192 | cmd.wlen = 1; | |
193 | cmd.rlen = 10; | |
194 | ret = si2157_cmd_execute(client, &cmd); | |
195 | if (ret) | |
196 | goto err; | |
197 | ||
198 | dev_info(&client->dev, "firmware version: %c.%c.%d\n", | |
199 | cmd.args[6], cmd.args[7], cmd.args[8]); | |
200 | ||
70f13ff0 | 201 | dev->fw_loaded = true; |
930a8730 | 202 | |
4cbf6ed9 | 203 | warm: |
70f13ff0 | 204 | dev->active = true; |
930a8730 | 205 | return 0; |
4cbf6ed9 | 206 | |
78dab40a | 207 | err_release_firmware: |
dc89cfcf | 208 | release_firmware(fw); |
e358c8a6 | 209 | err: |
8fe51725 | 210 | dev_dbg(&client->dev, "failed=%d\n", ret); |
b154121c | 211 | return ret; |
930a8730 AP |
212 | } |
213 | ||
214 | static int si2157_sleep(struct dvb_frontend *fe) | |
215 | { | |
8fe51725 AP |
216 | struct i2c_client *client = fe->tuner_priv; |
217 | struct si2157_dev *dev = i2c_get_clientdata(client); | |
a83d7d17 AP |
218 | int ret; |
219 | struct si2157_cmd cmd; | |
930a8730 | 220 | |
8fe51725 | 221 | dev_dbg(&client->dev, "\n"); |
930a8730 | 222 | |
70f13ff0 | 223 | dev->active = false; |
930a8730 | 224 | |
0e38233d OS |
225 | /* standby */ |
226 | memcpy(cmd.args, "\x16\x00", 2); | |
227 | cmd.wlen = 2; | |
228 | cmd.rlen = 1; | |
8fe51725 | 229 | ret = si2157_cmd_execute(client, &cmd); |
a83d7d17 AP |
230 | if (ret) |
231 | goto err; | |
232 | ||
930a8730 | 233 | return 0; |
a83d7d17 | 234 | err: |
8fe51725 | 235 | dev_dbg(&client->dev, "failed=%d\n", ret); |
a83d7d17 | 236 | return ret; |
930a8730 AP |
237 | } |
238 | ||
239 | static int si2157_set_params(struct dvb_frontend *fe) | |
240 | { | |
8fe51725 AP |
241 | struct i2c_client *client = fe->tuner_priv; |
242 | struct si2157_dev *dev = i2c_get_clientdata(client); | |
930a8730 AP |
243 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
244 | int ret; | |
245 | struct si2157_cmd cmd; | |
a1dad50d | 246 | u8 bandwidth, delivery_system; |
c28aebe1 | 247 | u32 if_frequency = 5000000; |
930a8730 | 248 | |
8fe51725 | 249 | dev_dbg(&client->dev, |
67d0113a | 250 | "delivery_system=%d frequency=%u bandwidth_hz=%u\n", |
8fe51725 | 251 | c->delivery_system, c->frequency, c->bandwidth_hz); |
930a8730 | 252 | |
70f13ff0 | 253 | if (!dev->active) { |
930a8730 AP |
254 | ret = -EAGAIN; |
255 | goto err; | |
256 | } | |
257 | ||
a1dad50d OS |
258 | if (c->bandwidth_hz <= 6000000) |
259 | bandwidth = 0x06; | |
260 | else if (c->bandwidth_hz <= 7000000) | |
261 | bandwidth = 0x07; | |
262 | else if (c->bandwidth_hz <= 8000000) | |
263 | bandwidth = 0x08; | |
264 | else | |
265 | bandwidth = 0x0f; | |
266 | ||
267 | switch (c->delivery_system) { | |
5cd62db7 OS |
268 | case SYS_ATSC: |
269 | delivery_system = 0x00; | |
c28aebe1 | 270 | if_frequency = 3250000; |
5cd62db7 | 271 | break; |
0d1165fc OS |
272 | case SYS_DVBC_ANNEX_B: |
273 | delivery_system = 0x10; | |
c28aebe1 | 274 | if_frequency = 4000000; |
0d1165fc | 275 | break; |
a1dad50d OS |
276 | case SYS_DVBT: |
277 | case SYS_DVBT2: /* it seems DVB-T and DVB-T2 both are 0x20 here */ | |
278 | delivery_system = 0x20; | |
279 | break; | |
280 | case SYS_DVBC_ANNEX_A: | |
281 | delivery_system = 0x30; | |
282 | break; | |
283 | default: | |
284 | ret = -EINVAL; | |
285 | goto err; | |
286 | } | |
287 | ||
288 | memcpy(cmd.args, "\x14\x00\x03\x07\x00\x00", 6); | |
289 | cmd.args[4] = delivery_system | bandwidth; | |
70f13ff0 | 290 | if (dev->inversion) |
05024efe | 291 | cmd.args[5] = 0x01; |
a1dad50d | 292 | cmd.wlen = 6; |
d87a5058 | 293 | cmd.rlen = 4; |
8fe51725 | 294 | ret = si2157_cmd_execute(client, &cmd); |
d87a5058 OS |
295 | if (ret) |
296 | goto err; | |
297 | ||
70f13ff0 | 298 | if (dev->chiptype == SI2157_CHIPTYPE_SI2146) |
073f3849 OS |
299 | memcpy(cmd.args, "\x14\x00\x02\x07\x00\x01", 6); |
300 | else | |
301 | memcpy(cmd.args, "\x14\x00\x02\x07\x01\x00", 6); | |
d87a5058 OS |
302 | cmd.wlen = 6; |
303 | cmd.rlen = 4; | |
8fe51725 | 304 | ret = si2157_cmd_execute(client, &cmd); |
a1dad50d OS |
305 | if (ret) |
306 | goto err; | |
307 | ||
c28aebe1 OS |
308 | /* set if frequency if needed */ |
309 | if (if_frequency != dev->if_frequency) { | |
310 | memcpy(cmd.args, "\x14\x00\x06\x07", 4); | |
311 | cmd.args[4] = (if_frequency / 1000) & 0xff; | |
312 | cmd.args[5] = ((if_frequency / 1000) >> 8) & 0xff; | |
313 | cmd.wlen = 6; | |
314 | cmd.rlen = 4; | |
315 | ret = si2157_cmd_execute(client, &cmd); | |
316 | if (ret) | |
317 | goto err; | |
318 | ||
319 | dev->if_frequency = if_frequency; | |
320 | } | |
321 | ||
930a8730 | 322 | /* set frequency */ |
b154121c | 323 | memcpy(cmd.args, "\x41\x00\x00\x00\x00\x00\x00\x00", 8); |
930a8730 AP |
324 | cmd.args[4] = (c->frequency >> 0) & 0xff; |
325 | cmd.args[5] = (c->frequency >> 8) & 0xff; | |
326 | cmd.args[6] = (c->frequency >> 16) & 0xff; | |
327 | cmd.args[7] = (c->frequency >> 24) & 0xff; | |
e6b4380f AP |
328 | cmd.wlen = 8; |
329 | cmd.rlen = 1; | |
8fe51725 | 330 | ret = si2157_cmd_execute(client, &cmd); |
930a8730 AP |
331 | if (ret) |
332 | goto err; | |
333 | ||
334 | return 0; | |
335 | err: | |
8fe51725 | 336 | dev_dbg(&client->dev, "failed=%d\n", ret); |
930a8730 AP |
337 | return ret; |
338 | } | |
339 | ||
1140540d MS |
340 | static int si2157_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) |
341 | { | |
c28aebe1 OS |
342 | struct i2c_client *client = fe->tuner_priv; |
343 | struct si2157_dev *dev = i2c_get_clientdata(client); | |
344 | ||
345 | *frequency = dev->if_frequency; | |
1140540d MS |
346 | return 0; |
347 | } | |
348 | ||
6cc8a35d | 349 | static const struct dvb_tuner_ops si2157_ops = { |
930a8730 | 350 | .info = { |
17ad09f1 | 351 | .name = "Silicon Labs Si2146/2147/2148/2157/2158", |
18acc6ac | 352 | .frequency_min = 55000000, |
930a8730 AP |
353 | .frequency_max = 862000000, |
354 | }, | |
355 | ||
356 | .init = si2157_init, | |
357 | .sleep = si2157_sleep, | |
358 | .set_params = si2157_set_params, | |
1140540d | 359 | .get_if_frequency = si2157_get_if_frequency, |
930a8730 AP |
360 | }; |
361 | ||
362 | static int si2157_probe(struct i2c_client *client, | |
363 | const struct i2c_device_id *id) | |
364 | { | |
365 | struct si2157_config *cfg = client->dev.platform_data; | |
366 | struct dvb_frontend *fe = cfg->fe; | |
70f13ff0 | 367 | struct si2157_dev *dev; |
930a8730 AP |
368 | struct si2157_cmd cmd; |
369 | int ret; | |
370 | ||
70f13ff0 AP |
371 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
372 | if (!dev) { | |
930a8730 | 373 | ret = -ENOMEM; |
67d0113a | 374 | dev_err(&client->dev, "kzalloc() failed\n"); |
930a8730 AP |
375 | goto err; |
376 | } | |
377 | ||
8fe51725 | 378 | i2c_set_clientdata(client, dev); |
70f13ff0 AP |
379 | dev->fe = cfg->fe; |
380 | dev->inversion = cfg->inversion; | |
381 | dev->fw_loaded = false; | |
382 | dev->chiptype = (u8)id->driver_data; | |
c28aebe1 | 383 | dev->if_frequency = 5000000; /* default value of property 0x0706 */ |
70f13ff0 | 384 | mutex_init(&dev->i2c_mutex); |
930a8730 AP |
385 | |
386 | /* check if the tuner is there */ | |
e6b4380f AP |
387 | cmd.wlen = 0; |
388 | cmd.rlen = 1; | |
8fe51725 | 389 | ret = si2157_cmd_execute(client, &cmd); |
930a8730 | 390 | if (ret) |
e7f3f9f3 | 391 | goto err_kfree; |
930a8730 | 392 | |
70f13ff0 | 393 | memcpy(&fe->ops.tuner_ops, &si2157_ops, sizeof(struct dvb_tuner_ops)); |
8fe51725 | 394 | fe->tuner_priv = client; |
930a8730 | 395 | |
8fe51725 | 396 | dev_info(&client->dev, "Silicon Labs %s successfully attached\n", |
70f13ff0 | 397 | dev->chiptype == SI2157_CHIPTYPE_SI2146 ? |
17ad09f1 | 398 | "Si2146" : "Si2147/2148/2157/2158"); |
073f3849 | 399 | |
930a8730 | 400 | return 0; |
e7f3f9f3 AP |
401 | |
402 | err_kfree: | |
403 | kfree(dev); | |
930a8730 | 404 | err: |
67d0113a | 405 | dev_dbg(&client->dev, "failed=%d\n", ret); |
930a8730 AP |
406 | return ret; |
407 | } | |
408 | ||
409 | static int si2157_remove(struct i2c_client *client) | |
410 | { | |
70f13ff0 AP |
411 | struct si2157_dev *dev = i2c_get_clientdata(client); |
412 | struct dvb_frontend *fe = dev->fe; | |
930a8730 | 413 | |
67d0113a | 414 | dev_dbg(&client->dev, "\n"); |
930a8730 AP |
415 | |
416 | memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops)); | |
417 | fe->tuner_priv = NULL; | |
70f13ff0 | 418 | kfree(dev); |
930a8730 AP |
419 | |
420 | return 0; | |
421 | } | |
422 | ||
c1292233 AP |
423 | static const struct i2c_device_id si2157_id_table[] = { |
424 | {"si2157", SI2157_CHIPTYPE_SI2157}, | |
425 | {"si2146", SI2157_CHIPTYPE_SI2146}, | |
930a8730 AP |
426 | {} |
427 | }; | |
c1292233 | 428 | MODULE_DEVICE_TABLE(i2c, si2157_id_table); |
930a8730 AP |
429 | |
430 | static struct i2c_driver si2157_driver = { | |
431 | .driver = { | |
432 | .owner = THIS_MODULE, | |
433 | .name = "si2157", | |
434 | }, | |
435 | .probe = si2157_probe, | |
436 | .remove = si2157_remove, | |
c1292233 | 437 | .id_table = si2157_id_table, |
930a8730 AP |
438 | }; |
439 | ||
440 | module_i2c_driver(si2157_driver); | |
441 | ||
17ad09f1 | 442 | MODULE_DESCRIPTION("Silicon Labs Si2146/2147/2148/2157/2158 silicon tuner driver"); |
930a8730 AP |
443 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); |
444 | MODULE_LICENSE("GPL"); | |
bac53a2c | 445 | MODULE_FIRMWARE(SI2158_A20_FIRMWARE); |