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02bee89e EV |
1 | /* |
2 | * drivers/media/radio/si4713-i2c.c | |
3 | * | |
4 | * Silicon Labs Si4713 FM Radio Transmitter I2C commands. | |
5 | * | |
6 | * Copyright (c) 2009 Nokia Corporation | |
7 | * Contact: Eduardo Valentin <eduardo.valentin@nokia.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <linux/mutex.h> | |
25 | #include <linux/completion.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/i2c.h> | |
5a0e3ad6 | 29 | #include <linux/slab.h> |
02bee89e EV |
30 | #include <media/v4l2-device.h> |
31 | #include <media/v4l2-ioctl.h> | |
32 | #include <media/v4l2-common.h> | |
33 | ||
34 | #include "si4713-i2c.h" | |
35 | ||
36 | /* module parameters */ | |
37 | static int debug; | |
38 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
39 | MODULE_PARM_DESC(debug, "Debug level (0 - 2)"); | |
40 | ||
41 | MODULE_LICENSE("GPL"); | |
42 | MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>"); | |
43 | MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter"); | |
44 | MODULE_VERSION("0.0.1"); | |
45 | ||
46 | #define DEFAULT_RDS_PI 0x00 | |
47 | #define DEFAULT_RDS_PTY 0x00 | |
48 | #define DEFAULT_RDS_PS_NAME "" | |
49 | #define DEFAULT_RDS_RADIO_TEXT DEFAULT_RDS_PS_NAME | |
50 | #define DEFAULT_RDS_DEVIATION 0x00C8 | |
51 | #define DEFAULT_RDS_PS_REPEAT_COUNT 0x0003 | |
52 | #define DEFAULT_LIMITER_RTIME 0x1392 | |
53 | #define DEFAULT_LIMITER_DEV 0x102CA | |
54 | #define DEFAULT_PILOT_FREQUENCY 0x4A38 | |
55 | #define DEFAULT_PILOT_DEVIATION 0x1A5E | |
56 | #define DEFAULT_ACOMP_ATIME 0x0000 | |
57 | #define DEFAULT_ACOMP_RTIME 0xF4240L | |
58 | #define DEFAULT_ACOMP_GAIN 0x0F | |
59 | #define DEFAULT_ACOMP_THRESHOLD (-0x28) | |
60 | #define DEFAULT_MUTE 0x01 | |
61 | #define DEFAULT_POWER_LEVEL 88 | |
62 | #define DEFAULT_FREQUENCY 8800 | |
63 | #define DEFAULT_PREEMPHASIS FMPE_EU | |
64 | #define DEFAULT_TUNE_RNL 0xFF | |
65 | ||
66 | #define to_si4713_device(sd) container_of(sd, struct si4713_device, sd) | |
67 | ||
68 | /* frequency domain transformation (using times 10 to avoid floats) */ | |
69 | #define FREQDEV_UNIT 100000 | |
70 | #define FREQV4L2_MULTI 625 | |
71 | #define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI) | |
72 | #define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT) | |
73 | #define FREQ_RANGE_LOW 7600 | |
74 | #define FREQ_RANGE_HIGH 10800 | |
75 | ||
76 | #define MAX_ARGS 7 | |
77 | ||
78 | #define RDS_BLOCK 8 | |
79 | #define RDS_BLOCK_CLEAR 0x03 | |
80 | #define RDS_BLOCK_LOAD 0x04 | |
81 | #define RDS_RADIOTEXT_2A 0x20 | |
82 | #define RDS_RADIOTEXT_BLK_SIZE 4 | |
83 | #define RDS_RADIOTEXT_INDEX_MAX 0x0F | |
84 | #define RDS_CARRIAGE_RETURN 0x0D | |
85 | ||
86 | #define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0)) | |
87 | ||
88 | #define get_status_bit(p, b, m) (((p) & (m)) >> (b)) | |
89 | #define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b))) | |
90 | ||
91 | #define ATTACK_TIME_UNIT 500 | |
92 | ||
93 | #define POWER_OFF 0x00 | |
94 | #define POWER_ON 0x01 | |
95 | ||
96 | #define msb(x) ((u8)((u16) x >> 8)) | |
97 | #define lsb(x) ((u8)((u16) x & 0x00FF)) | |
98 | #define compose_u16(msb, lsb) (((u16)msb << 8) | lsb) | |
99 | #define check_command_failed(status) (!(status & SI4713_CTS) || \ | |
100 | (status & SI4713_ERR)) | |
101 | /* mute definition */ | |
102 | #define set_mute(p) ((p & 1) | ((p & 1) << 1)); | |
103 | #define get_mute(p) (p & 0x01) | |
104 | ||
105 | #ifdef DEBUG | |
106 | #define DBG_BUFFER(device, message, buffer, size) \ | |
107 | { \ | |
108 | int i; \ | |
109 | char str[(size)*5]; \ | |
110 | for (i = 0; i < size; i++) \ | |
111 | sprintf(str + i * 5, " 0x%02x", buffer[i]); \ | |
112 | v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \ | |
113 | } | |
114 | #else | |
115 | #define DBG_BUFFER(device, message, buffer, size) | |
116 | #endif | |
117 | ||
118 | /* | |
119 | * Values for limiter release time (sorted by second column) | |
120 | * device release | |
121 | * value time (us) | |
122 | */ | |
123 | static long limiter_times[] = { | |
124 | 2000, 250, | |
125 | 1000, 500, | |
126 | 510, 1000, | |
127 | 255, 2000, | |
128 | 170, 3000, | |
129 | 127, 4020, | |
130 | 102, 5010, | |
131 | 85, 6020, | |
132 | 73, 7010, | |
133 | 64, 7990, | |
134 | 57, 8970, | |
135 | 51, 10030, | |
136 | 25, 20470, | |
137 | 17, 30110, | |
138 | 13, 39380, | |
139 | 10, 51190, | |
140 | 8, 63690, | |
141 | 7, 73140, | |
142 | 6, 85330, | |
143 | 5, 102390, | |
144 | }; | |
145 | ||
146 | /* | |
147 | * Values for audio compression release time (sorted by second column) | |
148 | * device release | |
149 | * value time (us) | |
150 | */ | |
151 | static unsigned long acomp_rtimes[] = { | |
152 | 0, 100000, | |
153 | 1, 200000, | |
154 | 2, 350000, | |
155 | 3, 525000, | |
156 | 4, 1000000, | |
157 | }; | |
158 | ||
159 | /* | |
160 | * Values for preemphasis (sorted by second column) | |
161 | * device preemphasis | |
162 | * value value (v4l2) | |
163 | */ | |
164 | static unsigned long preemphasis_values[] = { | |
165 | FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED, | |
166 | FMPE_EU, V4L2_PREEMPHASIS_50_uS, | |
167 | FMPE_USA, V4L2_PREEMPHASIS_75_uS, | |
168 | }; | |
169 | ||
170 | static int usecs_to_dev(unsigned long usecs, unsigned long const array[], | |
171 | int size) | |
172 | { | |
173 | int i; | |
174 | int rval = -EINVAL; | |
175 | ||
176 | for (i = 0; i < size / 2; i++) | |
177 | if (array[(i * 2) + 1] >= usecs) { | |
178 | rval = array[i * 2]; | |
179 | break; | |
180 | } | |
181 | ||
182 | return rval; | |
183 | } | |
184 | ||
185 | static unsigned long dev_to_usecs(int value, unsigned long const array[], | |
186 | int size) | |
187 | { | |
188 | int i; | |
189 | int rval = -EINVAL; | |
190 | ||
191 | for (i = 0; i < size / 2; i++) | |
192 | if (array[i * 2] == value) { | |
193 | rval = array[(i * 2) + 1]; | |
194 | break; | |
195 | } | |
196 | ||
197 | return rval; | |
198 | } | |
199 | ||
200 | /* si4713_handler: IRQ handler, just complete work */ | |
201 | static irqreturn_t si4713_handler(int irq, void *dev) | |
202 | { | |
203 | struct si4713_device *sdev = dev; | |
204 | ||
205 | v4l2_dbg(2, debug, &sdev->sd, | |
206 | "%s: sending signal to completion work.\n", __func__); | |
207 | complete(&sdev->work); | |
208 | ||
209 | return IRQ_HANDLED; | |
210 | } | |
211 | ||
212 | /* | |
213 | * si4713_send_command - sends a command to si4713 and waits its response | |
214 | * @sdev: si4713_device structure for the device we are communicating | |
215 | * @command: command id | |
216 | * @args: command arguments we are sending (up to 7) | |
217 | * @argn: actual size of @args | |
218 | * @response: buffer to place the expected response from the device (up to 15) | |
219 | * @respn: actual size of @response | |
220 | * @usecs: amount of time to wait before reading the response (in usecs) | |
221 | */ | |
222 | static int si4713_send_command(struct si4713_device *sdev, const u8 command, | |
223 | const u8 args[], const int argn, | |
224 | u8 response[], const int respn, const int usecs) | |
225 | { | |
226 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
227 | u8 data1[MAX_ARGS + 1]; | |
228 | int err; | |
229 | ||
230 | if (!client->adapter) | |
231 | return -ENODEV; | |
232 | ||
233 | /* First send the command and its arguments */ | |
234 | data1[0] = command; | |
235 | memcpy(data1 + 1, args, argn); | |
236 | DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1); | |
237 | ||
238 | err = i2c_master_send(client, data1, argn + 1); | |
239 | if (err != argn + 1) { | |
240 | v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n", | |
241 | command); | |
242 | return (err > 0) ? -EIO : err; | |
243 | } | |
244 | ||
245 | /* Wait response from interrupt */ | |
246 | if (!wait_for_completion_timeout(&sdev->work, | |
247 | usecs_to_jiffies(usecs) + 1)) | |
248 | v4l2_warn(&sdev->sd, | |
249 | "(%s) Device took too much time to answer.\n", | |
250 | __func__); | |
251 | ||
252 | /* Then get the response */ | |
253 | err = i2c_master_recv(client, response, respn); | |
254 | if (err != respn) { | |
255 | v4l2_err(&sdev->sd, | |
256 | "Error while reading response for command 0x%02x\n", | |
257 | command); | |
258 | return (err > 0) ? -EIO : err; | |
259 | } | |
260 | ||
261 | DBG_BUFFER(&sdev->sd, "Response", response, respn); | |
262 | if (check_command_failed(response[0])) | |
263 | return -EBUSY; | |
264 | ||
265 | return 0; | |
266 | } | |
267 | ||
268 | /* | |
269 | * si4713_read_property - reads a si4713 property | |
270 | * @sdev: si4713_device structure for the device we are communicating | |
271 | * @prop: property identification number | |
272 | * @pv: property value to be returned on success | |
273 | */ | |
274 | static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv) | |
275 | { | |
276 | int err; | |
277 | u8 val[SI4713_GET_PROP_NRESP]; | |
278 | /* | |
279 | * .First byte = 0 | |
280 | * .Second byte = property's MSB | |
281 | * .Third byte = property's LSB | |
282 | */ | |
283 | const u8 args[SI4713_GET_PROP_NARGS] = { | |
284 | 0x00, | |
285 | msb(prop), | |
286 | lsb(prop), | |
287 | }; | |
288 | ||
289 | err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY, | |
290 | args, ARRAY_SIZE(args), val, | |
291 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
292 | ||
293 | if (err < 0) | |
294 | return err; | |
295 | ||
296 | *pv = compose_u16(val[2], val[3]); | |
297 | ||
298 | v4l2_dbg(1, debug, &sdev->sd, | |
299 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
300 | __func__, prop, *pv, val[0]); | |
301 | ||
302 | return err; | |
303 | } | |
304 | ||
305 | /* | |
306 | * si4713_write_property - modifies a si4713 property | |
307 | * @sdev: si4713_device structure for the device we are communicating | |
308 | * @prop: property identification number | |
309 | * @val: new value for that property | |
310 | */ | |
311 | static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val) | |
312 | { | |
313 | int rval; | |
314 | u8 resp[SI4713_SET_PROP_NRESP]; | |
315 | /* | |
316 | * .First byte = 0 | |
317 | * .Second byte = property's MSB | |
318 | * .Third byte = property's LSB | |
319 | * .Fourth byte = value's MSB | |
320 | * .Fifth byte = value's LSB | |
321 | */ | |
322 | const u8 args[SI4713_SET_PROP_NARGS] = { | |
323 | 0x00, | |
324 | msb(prop), | |
325 | lsb(prop), | |
326 | msb(val), | |
327 | lsb(val), | |
328 | }; | |
329 | ||
330 | rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY, | |
331 | args, ARRAY_SIZE(args), | |
332 | resp, ARRAY_SIZE(resp), | |
333 | DEFAULT_TIMEOUT); | |
334 | ||
335 | if (rval < 0) | |
336 | return rval; | |
337 | ||
338 | v4l2_dbg(1, debug, &sdev->sd, | |
339 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
340 | __func__, prop, val, resp[0]); | |
341 | ||
342 | /* | |
343 | * As there is no command response for SET_PROPERTY, | |
344 | * wait Tcomp time to finish before proceed, in order | |
345 | * to have property properly set. | |
346 | */ | |
347 | msleep(TIMEOUT_SET_PROPERTY); | |
348 | ||
349 | return rval; | |
350 | } | |
351 | ||
352 | /* | |
353 | * si4713_powerup - Powers the device up | |
354 | * @sdev: si4713_device structure for the device we are communicating | |
355 | */ | |
356 | static int si4713_powerup(struct si4713_device *sdev) | |
357 | { | |
358 | int err; | |
359 | u8 resp[SI4713_PWUP_NRESP]; | |
360 | /* | |
361 | * .First byte = Enabled interrupts and boot function | |
362 | * .Second byte = Input operation mode | |
363 | */ | |
364 | const u8 args[SI4713_PWUP_NARGS] = { | |
365 | SI4713_PWUP_CTSIEN | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX, | |
366 | SI4713_PWUP_OPMOD_ANALOG, | |
367 | }; | |
368 | ||
369 | if (sdev->power_state) | |
370 | return 0; | |
371 | ||
372 | sdev->platform_data->set_power(1); | |
373 | err = si4713_send_command(sdev, SI4713_CMD_POWER_UP, | |
374 | args, ARRAY_SIZE(args), | |
375 | resp, ARRAY_SIZE(resp), | |
376 | TIMEOUT_POWER_UP); | |
377 | ||
378 | if (!err) { | |
379 | v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n", | |
380 | resp[0]); | |
381 | v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n"); | |
382 | sdev->power_state = POWER_ON; | |
383 | ||
384 | err = si4713_write_property(sdev, SI4713_GPO_IEN, | |
385 | SI4713_STC_INT | SI4713_CTS); | |
386 | } else { | |
387 | sdev->platform_data->set_power(0); | |
388 | } | |
389 | ||
390 | return err; | |
391 | } | |
392 | ||
393 | /* | |
394 | * si4713_powerdown - Powers the device down | |
395 | * @sdev: si4713_device structure for the device we are communicating | |
396 | */ | |
397 | static int si4713_powerdown(struct si4713_device *sdev) | |
398 | { | |
399 | int err; | |
400 | u8 resp[SI4713_PWDN_NRESP]; | |
401 | ||
402 | if (!sdev->power_state) | |
403 | return 0; | |
404 | ||
405 | err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN, | |
406 | NULL, 0, | |
407 | resp, ARRAY_SIZE(resp), | |
408 | DEFAULT_TIMEOUT); | |
409 | ||
410 | if (!err) { | |
411 | v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", | |
412 | resp[0]); | |
413 | v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); | |
414 | sdev->platform_data->set_power(0); | |
415 | sdev->power_state = POWER_OFF; | |
416 | } | |
417 | ||
418 | return err; | |
419 | } | |
420 | ||
421 | /* | |
422 | * si4713_checkrev - Checks if we are treating a device with the correct rev. | |
423 | * @sdev: si4713_device structure for the device we are communicating | |
424 | */ | |
425 | static int si4713_checkrev(struct si4713_device *sdev) | |
426 | { | |
427 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
428 | int rval; | |
429 | u8 resp[SI4713_GETREV_NRESP]; | |
430 | ||
431 | mutex_lock(&sdev->mutex); | |
432 | ||
433 | rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, | |
434 | NULL, 0, | |
435 | resp, ARRAY_SIZE(resp), | |
436 | DEFAULT_TIMEOUT); | |
437 | ||
438 | if (rval < 0) | |
439 | goto unlock; | |
440 | ||
441 | if (resp[1] == SI4713_PRODUCT_NUMBER) { | |
442 | v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n", | |
443 | client->addr << 1, client->adapter->name); | |
444 | } else { | |
445 | v4l2_err(&sdev->sd, "Invalid product number\n"); | |
446 | rval = -EINVAL; | |
447 | } | |
448 | ||
449 | unlock: | |
450 | mutex_unlock(&sdev->mutex); | |
451 | return rval; | |
452 | } | |
453 | ||
454 | /* | |
455 | * si4713_wait_stc - Waits STC interrupt and clears status bits. Usefull | |
456 | * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS | |
457 | * @sdev: si4713_device structure for the device we are communicating | |
458 | * @usecs: timeout to wait for STC interrupt signal | |
459 | */ | |
460 | static int si4713_wait_stc(struct si4713_device *sdev, const int usecs) | |
461 | { | |
462 | int err; | |
463 | u8 resp[SI4713_GET_STATUS_NRESP]; | |
464 | ||
465 | /* Wait response from STC interrupt */ | |
466 | if (!wait_for_completion_timeout(&sdev->work, | |
467 | usecs_to_jiffies(usecs) + 1)) | |
468 | v4l2_warn(&sdev->sd, | |
469 | "%s: device took too much time to answer (%d usec).\n", | |
470 | __func__, usecs); | |
471 | ||
472 | /* Clear status bits */ | |
473 | err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS, | |
474 | NULL, 0, | |
475 | resp, ARRAY_SIZE(resp), | |
476 | DEFAULT_TIMEOUT); | |
477 | ||
478 | if (err < 0) | |
479 | goto exit; | |
480 | ||
481 | v4l2_dbg(1, debug, &sdev->sd, | |
482 | "%s: status bits: 0x%02x\n", __func__, resp[0]); | |
483 | ||
484 | if (!(resp[0] & SI4713_STC_INT)) | |
485 | err = -EIO; | |
486 | ||
487 | exit: | |
488 | return err; | |
489 | } | |
490 | ||
491 | /* | |
492 | * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning | |
493 | * frequency between 76 and 108 MHz in 10 kHz units and | |
494 | * steps of 50 kHz. | |
495 | * @sdev: si4713_device structure for the device we are communicating | |
496 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
497 | */ | |
498 | static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency) | |
499 | { | |
500 | int err; | |
501 | u8 val[SI4713_TXFREQ_NRESP]; | |
502 | /* | |
503 | * .First byte = 0 | |
504 | * .Second byte = frequency's MSB | |
505 | * .Third byte = frequency's LSB | |
506 | */ | |
507 | const u8 args[SI4713_TXFREQ_NARGS] = { | |
508 | 0x00, | |
509 | msb(frequency), | |
510 | lsb(frequency), | |
511 | }; | |
512 | ||
513 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ, | |
514 | args, ARRAY_SIZE(args), val, | |
515 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
516 | ||
517 | if (err < 0) | |
518 | return err; | |
519 | ||
520 | v4l2_dbg(1, debug, &sdev->sd, | |
521 | "%s: frequency=0x%02x status=0x%02x\n", __func__, | |
522 | frequency, val[0]); | |
523 | ||
524 | err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
525 | if (err < 0) | |
526 | return err; | |
527 | ||
528 | return compose_u16(args[1], args[2]); | |
529 | } | |
530 | ||
531 | /* | |
532 | * si4713_tx_tune_power - Sets the RF voltage level between 88 and 115 dBuV in | |
533 | * 1 dB units. A value of 0x00 indicates off. The command | |
534 | * also sets the antenna tuning capacitance. A value of 0 | |
535 | * indicates autotuning, and a value of 1 - 191 indicates | |
536 | * a manual override, which results in a tuning | |
537 | * capacitance of 0.25 pF x @antcap. | |
538 | * @sdev: si4713_device structure for the device we are communicating | |
539 | * @power: tuning power (88 - 115 dBuV, unit/step 1 dB) | |
540 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
541 | */ | |
542 | static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power, | |
543 | u8 antcap) | |
544 | { | |
545 | int err; | |
546 | u8 val[SI4713_TXPWR_NRESP]; | |
547 | /* | |
548 | * .First byte = 0 | |
549 | * .Second byte = 0 | |
550 | * .Third byte = power | |
551 | * .Fourth byte = antcap | |
552 | */ | |
553 | const u8 args[SI4713_TXPWR_NARGS] = { | |
554 | 0x00, | |
555 | 0x00, | |
556 | power, | |
557 | antcap, | |
558 | }; | |
559 | ||
560 | if (((power > 0) && (power < SI4713_MIN_POWER)) || | |
561 | power > SI4713_MAX_POWER || antcap > SI4713_MAX_ANTCAP) | |
562 | return -EDOM; | |
563 | ||
564 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER, | |
565 | args, ARRAY_SIZE(args), val, | |
566 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
567 | ||
568 | if (err < 0) | |
569 | return err; | |
570 | ||
571 | v4l2_dbg(1, debug, &sdev->sd, | |
572 | "%s: power=0x%02x antcap=0x%02x status=0x%02x\n", | |
573 | __func__, power, antcap, val[0]); | |
574 | ||
575 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER); | |
576 | } | |
577 | ||
578 | /* | |
579 | * si4713_tx_tune_measure - Enters receive mode and measures the received noise | |
580 | * level in units of dBuV on the selected frequency. | |
581 | * The Frequency must be between 76 and 108 MHz in 10 kHz | |
582 | * units and steps of 50 kHz. The command also sets the | |
583 | * antenna tuning capacitance. A value of 0 means | |
584 | * autotuning, and a value of 1 to 191 indicates manual | |
585 | * override. | |
586 | * @sdev: si4713_device structure for the device we are communicating | |
587 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
588 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
589 | */ | |
590 | static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency, | |
591 | u8 antcap) | |
592 | { | |
593 | int err; | |
594 | u8 val[SI4713_TXMEA_NRESP]; | |
595 | /* | |
596 | * .First byte = 0 | |
597 | * .Second byte = frequency's MSB | |
598 | * .Third byte = frequency's LSB | |
599 | * .Fourth byte = antcap | |
600 | */ | |
601 | const u8 args[SI4713_TXMEA_NARGS] = { | |
602 | 0x00, | |
603 | msb(frequency), | |
604 | lsb(frequency), | |
605 | antcap, | |
606 | }; | |
607 | ||
608 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
609 | ||
610 | if (antcap > SI4713_MAX_ANTCAP) | |
611 | return -EDOM; | |
612 | ||
613 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE, | |
614 | args, ARRAY_SIZE(args), val, | |
615 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
616 | ||
617 | if (err < 0) | |
618 | return err; | |
619 | ||
620 | v4l2_dbg(1, debug, &sdev->sd, | |
621 | "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n", | |
622 | __func__, frequency, antcap, val[0]); | |
623 | ||
624 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
625 | } | |
626 | ||
627 | /* | |
628 | * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or | |
629 | * tx_tune_power commands. This command return the current | |
630 | * frequency, output voltage in dBuV, the antenna tunning | |
631 | * capacitance value and the received noise level. The | |
632 | * command also clears the stcint interrupt bit when the | |
633 | * first bit of its arguments is high. | |
634 | * @sdev: si4713_device structure for the device we are communicating | |
635 | * @intack: 0x01 to clear the seek/tune complete interrupt status indicator. | |
636 | * @frequency: returned frequency | |
637 | * @power: returned power | |
638 | * @antcap: returned antenna capacitance | |
639 | * @noise: returned noise level | |
640 | */ | |
641 | static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack, | |
642 | u16 *frequency, u8 *power, | |
643 | u8 *antcap, u8 *noise) | |
644 | { | |
645 | int err; | |
646 | u8 val[SI4713_TXSTATUS_NRESP]; | |
647 | /* | |
648 | * .First byte = intack bit | |
649 | */ | |
650 | const u8 args[SI4713_TXSTATUS_NARGS] = { | |
651 | intack & SI4713_INTACK_MASK, | |
652 | }; | |
653 | ||
654 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS, | |
655 | args, ARRAY_SIZE(args), val, | |
656 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
657 | ||
658 | if (!err) { | |
659 | v4l2_dbg(1, debug, &sdev->sd, | |
660 | "%s: status=0x%02x\n", __func__, val[0]); | |
661 | *frequency = compose_u16(val[2], val[3]); | |
662 | sdev->frequency = *frequency; | |
663 | *power = val[5]; | |
664 | *antcap = val[6]; | |
665 | *noise = val[7]; | |
666 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz " | |
667 | "(power %d, antcap %d, rnl %d)\n", __func__, | |
668 | *frequency, *power, *antcap, *noise); | |
669 | } | |
670 | ||
671 | return err; | |
672 | } | |
673 | ||
674 | /* | |
675 | * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer. | |
676 | * @sdev: si4713_device structure for the device we are communicating | |
677 | * @mode: the buffer operation mode. | |
678 | * @rdsb: RDS Block B | |
679 | * @rdsc: RDS Block C | |
680 | * @rdsd: RDS Block D | |
681 | * @cbleft: returns the number of available circular buffer blocks minus the | |
682 | * number of used circular buffer blocks. | |
683 | */ | |
684 | static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb, | |
685 | u16 rdsc, u16 rdsd, s8 *cbleft) | |
686 | { | |
687 | int err; | |
688 | u8 val[SI4713_RDSBUFF_NRESP]; | |
689 | ||
690 | const u8 args[SI4713_RDSBUFF_NARGS] = { | |
691 | mode & SI4713_RDSBUFF_MODE_MASK, | |
692 | msb(rdsb), | |
693 | lsb(rdsb), | |
694 | msb(rdsc), | |
695 | lsb(rdsc), | |
696 | msb(rdsd), | |
697 | lsb(rdsd), | |
698 | }; | |
699 | ||
700 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF, | |
701 | args, ARRAY_SIZE(args), val, | |
702 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
703 | ||
704 | if (!err) { | |
705 | v4l2_dbg(1, debug, &sdev->sd, | |
706 | "%s: status=0x%02x\n", __func__, val[0]); | |
707 | *cbleft = (s8)val[2] - val[3]; | |
708 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts" | |
709 | " 0x%02x cb avail: %d cb used %d fifo avail" | |
710 | " %d fifo used %d\n", __func__, val[1], | |
711 | val[2], val[3], val[4], val[5]); | |
712 | } | |
713 | ||
714 | return err; | |
715 | } | |
716 | ||
717 | /* | |
718 | * si4713_tx_rds_ps - Loads the program service buffer. | |
719 | * @sdev: si4713_device structure for the device we are communicating | |
720 | * @psid: program service id to be loaded. | |
721 | * @pschar: assumed 4 size char array to be loaded into the program service | |
722 | */ | |
723 | static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid, | |
724 | unsigned char *pschar) | |
725 | { | |
726 | int err; | |
727 | u8 val[SI4713_RDSPS_NRESP]; | |
728 | ||
729 | const u8 args[SI4713_RDSPS_NARGS] = { | |
730 | psid & SI4713_RDSPS_PSID_MASK, | |
731 | pschar[0], | |
732 | pschar[1], | |
733 | pschar[2], | |
734 | pschar[3], | |
735 | }; | |
736 | ||
737 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS, | |
738 | args, ARRAY_SIZE(args), val, | |
739 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
740 | ||
741 | if (err < 0) | |
742 | return err; | |
743 | ||
744 | v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]); | |
745 | ||
746 | return err; | |
747 | } | |
748 | ||
749 | static int si4713_set_power_state(struct si4713_device *sdev, u8 value) | |
750 | { | |
751 | int rval; | |
752 | ||
753 | mutex_lock(&sdev->mutex); | |
754 | ||
755 | if (value) | |
756 | rval = si4713_powerup(sdev); | |
757 | else | |
758 | rval = si4713_powerdown(sdev); | |
759 | ||
760 | mutex_unlock(&sdev->mutex); | |
761 | return rval; | |
762 | } | |
763 | ||
764 | static int si4713_set_mute(struct si4713_device *sdev, u16 mute) | |
765 | { | |
766 | int rval = 0; | |
767 | ||
768 | mute = set_mute(mute); | |
769 | ||
770 | mutex_lock(&sdev->mutex); | |
771 | ||
772 | if (sdev->power_state) | |
773 | rval = si4713_write_property(sdev, | |
774 | SI4713_TX_LINE_INPUT_MUTE, mute); | |
775 | ||
776 | if (rval >= 0) | |
777 | sdev->mute = get_mute(mute); | |
778 | ||
779 | mutex_unlock(&sdev->mutex); | |
780 | ||
781 | return rval; | |
782 | } | |
783 | ||
784 | static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) | |
785 | { | |
786 | int rval = 0, i; | |
787 | u8 len = 0; | |
788 | ||
789 | /* We want to clear the whole thing */ | |
790 | if (!strlen(ps_name)) | |
791 | memset(ps_name, 0, MAX_RDS_PS_NAME + 1); | |
792 | ||
793 | mutex_lock(&sdev->mutex); | |
794 | ||
795 | if (sdev->power_state) { | |
796 | /* Write the new ps name and clear the padding */ | |
797 | for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) { | |
798 | rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)), | |
799 | ps_name + i); | |
800 | if (rval < 0) | |
801 | goto unlock; | |
802 | } | |
803 | ||
804 | /* Setup the size to be sent */ | |
805 | if (strlen(ps_name)) | |
806 | len = strlen(ps_name) - 1; | |
807 | else | |
808 | len = 1; | |
809 | ||
810 | rval = si4713_write_property(sdev, | |
811 | SI4713_TX_RDS_PS_MESSAGE_COUNT, | |
812 | rds_ps_nblocks(len)); | |
813 | if (rval < 0) | |
814 | goto unlock; | |
815 | ||
816 | rval = si4713_write_property(sdev, | |
817 | SI4713_TX_RDS_PS_REPEAT_COUNT, | |
818 | DEFAULT_RDS_PS_REPEAT_COUNT * 2); | |
819 | if (rval < 0) | |
820 | goto unlock; | |
821 | } | |
822 | ||
823 | strncpy(sdev->rds_info.ps_name, ps_name, MAX_RDS_PS_NAME); | |
824 | ||
825 | unlock: | |
826 | mutex_unlock(&sdev->mutex); | |
827 | return rval; | |
828 | } | |
829 | ||
830 | static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt) | |
831 | { | |
832 | int rval = 0, i; | |
833 | u16 t_index = 0; | |
834 | u8 b_index = 0, cr_inserted = 0; | |
835 | s8 left; | |
836 | ||
837 | mutex_lock(&sdev->mutex); | |
838 | ||
839 | if (!sdev->power_state) | |
840 | goto copy; | |
841 | ||
842 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); | |
843 | if (rval < 0) | |
844 | goto unlock; | |
845 | ||
846 | if (!strlen(rt)) | |
847 | goto copy; | |
848 | ||
849 | do { | |
850 | /* RDS spec says that if the last block isn't used, | |
851 | * then apply a carriage return | |
852 | */ | |
853 | if (t_index < (RDS_RADIOTEXT_INDEX_MAX * | |
854 | RDS_RADIOTEXT_BLK_SIZE)) { | |
855 | for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { | |
856 | if (!rt[t_index + i] || rt[t_index + i] == | |
857 | RDS_CARRIAGE_RETURN) { | |
858 | rt[t_index + i] = RDS_CARRIAGE_RETURN; | |
859 | cr_inserted = 1; | |
860 | break; | |
861 | } | |
862 | } | |
863 | } | |
864 | ||
865 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD, | |
866 | compose_u16(RDS_RADIOTEXT_2A, b_index++), | |
867 | compose_u16(rt[t_index], rt[t_index + 1]), | |
868 | compose_u16(rt[t_index + 2], rt[t_index + 3]), | |
869 | &left); | |
870 | if (rval < 0) | |
871 | goto unlock; | |
872 | ||
873 | t_index += RDS_RADIOTEXT_BLK_SIZE; | |
874 | ||
875 | if (cr_inserted) | |
876 | break; | |
877 | } while (left > 0); | |
878 | ||
879 | copy: | |
880 | strncpy(sdev->rds_info.radio_text, rt, MAX_RDS_RADIO_TEXT); | |
881 | ||
882 | unlock: | |
883 | mutex_unlock(&sdev->mutex); | |
884 | return rval; | |
885 | } | |
886 | ||
887 | static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, | |
888 | u32 **shadow, s32 *bit, s32 *mask, u16 *property, int *mul, | |
889 | unsigned long **table, int *size) | |
890 | { | |
891 | s32 rval = 0; | |
892 | ||
893 | switch (id) { | |
894 | /* FM_TX class controls */ | |
895 | case V4L2_CID_RDS_TX_PI: | |
896 | *property = SI4713_TX_RDS_PI; | |
897 | *mul = 1; | |
898 | *shadow = &sdev->rds_info.pi; | |
899 | break; | |
900 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: | |
901 | *property = SI4713_TX_ACOMP_THRESHOLD; | |
902 | *mul = 1; | |
903 | *shadow = &sdev->acomp_info.threshold; | |
904 | break; | |
905 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: | |
906 | *property = SI4713_TX_ACOMP_GAIN; | |
907 | *mul = 1; | |
908 | *shadow = &sdev->acomp_info.gain; | |
909 | break; | |
910 | case V4L2_CID_PILOT_TONE_FREQUENCY: | |
911 | *property = SI4713_TX_PILOT_FREQUENCY; | |
912 | *mul = 1; | |
913 | *shadow = &sdev->pilot_info.frequency; | |
914 | break; | |
915 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: | |
916 | *property = SI4713_TX_ACOMP_ATTACK_TIME; | |
917 | *mul = ATTACK_TIME_UNIT; | |
918 | *shadow = &sdev->acomp_info.attack_time; | |
919 | break; | |
920 | case V4L2_CID_PILOT_TONE_DEVIATION: | |
921 | *property = SI4713_TX_PILOT_DEVIATION; | |
922 | *mul = 10; | |
923 | *shadow = &sdev->pilot_info.deviation; | |
924 | break; | |
925 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: | |
926 | *property = SI4713_TX_AUDIO_DEVIATION; | |
927 | *mul = 10; | |
928 | *shadow = &sdev->limiter_info.deviation; | |
929 | break; | |
930 | case V4L2_CID_RDS_TX_DEVIATION: | |
931 | *property = SI4713_TX_RDS_DEVIATION; | |
932 | *mul = 1; | |
933 | *shadow = &sdev->rds_info.deviation; | |
934 | break; | |
935 | ||
936 | case V4L2_CID_RDS_TX_PTY: | |
937 | *property = SI4713_TX_RDS_PS_MISC; | |
938 | *bit = 5; | |
939 | *mask = 0x1F << 5; | |
940 | *shadow = &sdev->rds_info.pty; | |
941 | break; | |
942 | case V4L2_CID_AUDIO_LIMITER_ENABLED: | |
943 | *property = SI4713_TX_ACOMP_ENABLE; | |
944 | *bit = 1; | |
945 | *mask = 1 << 1; | |
946 | *shadow = &sdev->limiter_info.enabled; | |
947 | break; | |
948 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: | |
949 | *property = SI4713_TX_ACOMP_ENABLE; | |
950 | *bit = 0; | |
951 | *mask = 1 << 0; | |
952 | *shadow = &sdev->acomp_info.enabled; | |
953 | break; | |
954 | case V4L2_CID_PILOT_TONE_ENABLED: | |
955 | *property = SI4713_TX_COMPONENT_ENABLE; | |
956 | *bit = 0; | |
957 | *mask = 1 << 0; | |
958 | *shadow = &sdev->pilot_info.enabled; | |
959 | break; | |
960 | ||
961 | case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: | |
962 | *property = SI4713_TX_LIMITER_RELEASE_TIME; | |
963 | *table = limiter_times; | |
964 | *size = ARRAY_SIZE(limiter_times); | |
965 | *shadow = &sdev->limiter_info.release_time; | |
966 | break; | |
967 | case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: | |
968 | *property = SI4713_TX_ACOMP_RELEASE_TIME; | |
969 | *table = acomp_rtimes; | |
970 | *size = ARRAY_SIZE(acomp_rtimes); | |
971 | *shadow = &sdev->acomp_info.release_time; | |
972 | break; | |
973 | case V4L2_CID_TUNE_PREEMPHASIS: | |
974 | *property = SI4713_TX_PREEMPHASIS; | |
975 | *table = preemphasis_values; | |
976 | *size = ARRAY_SIZE(preemphasis_values); | |
977 | *shadow = &sdev->preemphasis; | |
978 | break; | |
979 | ||
980 | default: | |
981 | rval = -EINVAL; | |
982 | }; | |
983 | ||
984 | return rval; | |
985 | } | |
986 | ||
987 | static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc); | |
988 | ||
989 | /* write string property */ | |
990 | static int si4713_write_econtrol_string(struct si4713_device *sdev, | |
991 | struct v4l2_ext_control *control) | |
992 | { | |
993 | struct v4l2_queryctrl vqc; | |
994 | int len; | |
995 | s32 rval = 0; | |
996 | ||
997 | vqc.id = control->id; | |
998 | rval = si4713_queryctrl(&sdev->sd, &vqc); | |
999 | if (rval < 0) | |
1000 | goto exit; | |
1001 | ||
1002 | switch (control->id) { | |
1003 | case V4L2_CID_RDS_TX_PS_NAME: { | |
1004 | char ps_name[MAX_RDS_PS_NAME + 1]; | |
1005 | ||
1006 | len = control->size - 1; | |
1007 | if (len > MAX_RDS_PS_NAME) { | |
1008 | rval = -ERANGE; | |
1009 | goto exit; | |
1010 | } | |
1011 | rval = copy_from_user(ps_name, control->string, len); | |
1012 | if (rval < 0) | |
1013 | goto exit; | |
1014 | ps_name[len] = '\0'; | |
1015 | ||
1016 | if (strlen(ps_name) % vqc.step) { | |
1017 | rval = -ERANGE; | |
1018 | goto exit; | |
1019 | } | |
1020 | ||
1021 | rval = si4713_set_rds_ps_name(sdev, ps_name); | |
1022 | } | |
1023 | break; | |
1024 | ||
1025 | case V4L2_CID_RDS_TX_RADIO_TEXT: { | |
1026 | char radio_text[MAX_RDS_RADIO_TEXT + 1]; | |
1027 | ||
1028 | len = control->size - 1; | |
1029 | if (len > MAX_RDS_RADIO_TEXT) { | |
1030 | rval = -ERANGE; | |
1031 | goto exit; | |
1032 | } | |
1033 | rval = copy_from_user(radio_text, control->string, len); | |
1034 | if (rval < 0) | |
1035 | goto exit; | |
1036 | radio_text[len] = '\0'; | |
1037 | ||
1038 | if (strlen(radio_text) % vqc.step) { | |
1039 | rval = -ERANGE; | |
1040 | goto exit; | |
1041 | } | |
1042 | ||
1043 | rval = si4713_set_rds_radio_text(sdev, radio_text); | |
1044 | } | |
1045 | break; | |
1046 | ||
1047 | default: | |
1048 | rval = -EINVAL; | |
1049 | break; | |
1050 | }; | |
1051 | ||
1052 | exit: | |
1053 | return rval; | |
1054 | } | |
1055 | ||
1056 | static int validate_range(struct v4l2_subdev *sd, | |
1057 | struct v4l2_ext_control *control) | |
1058 | { | |
1059 | struct v4l2_queryctrl vqc; | |
1060 | int rval; | |
1061 | ||
1062 | vqc.id = control->id; | |
1063 | rval = si4713_queryctrl(sd, &vqc); | |
1064 | if (rval < 0) | |
1065 | goto exit; | |
1066 | ||
1067 | if (control->value < vqc.minimum || control->value > vqc.maximum) | |
1068 | rval = -ERANGE; | |
1069 | ||
1070 | exit: | |
1071 | return rval; | |
1072 | } | |
1073 | ||
1074 | /* properties which use tx_tune_power*/ | |
1075 | static int si4713_write_econtrol_tune(struct si4713_device *sdev, | |
1076 | struct v4l2_ext_control *control) | |
1077 | { | |
1078 | s32 rval = 0; | |
1079 | u8 power, antcap; | |
1080 | ||
1081 | rval = validate_range(&sdev->sd, control); | |
1082 | if (rval < 0) | |
1083 | goto exit; | |
1084 | ||
1085 | mutex_lock(&sdev->mutex); | |
1086 | ||
1087 | switch (control->id) { | |
1088 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1089 | power = control->value; | |
1090 | antcap = sdev->antenna_capacitor; | |
1091 | break; | |
1092 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1093 | power = sdev->power_level; | |
1094 | antcap = control->value; | |
1095 | break; | |
1096 | default: | |
1097 | rval = -EINVAL; | |
1098 | goto unlock; | |
1099 | }; | |
1100 | ||
1101 | if (sdev->power_state) | |
1102 | rval = si4713_tx_tune_power(sdev, power, antcap); | |
1103 | ||
1104 | if (rval == 0) { | |
1105 | sdev->power_level = power; | |
1106 | sdev->antenna_capacitor = antcap; | |
1107 | } | |
1108 | ||
1109 | unlock: | |
1110 | mutex_unlock(&sdev->mutex); | |
1111 | exit: | |
1112 | return rval; | |
1113 | } | |
1114 | ||
1115 | static int si4713_write_econtrol_integers(struct si4713_device *sdev, | |
1116 | struct v4l2_ext_control *control) | |
1117 | { | |
1118 | s32 rval; | |
1119 | u32 *shadow = NULL, val = 0; | |
1120 | s32 bit = 0, mask = 0; | |
1121 | u16 property = 0; | |
1122 | int mul = 0; | |
1123 | unsigned long *table = NULL; | |
1124 | int size = 0; | |
1125 | ||
1126 | rval = validate_range(&sdev->sd, control); | |
1127 | if (rval < 0) | |
1128 | goto exit; | |
1129 | ||
1130 | rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit, | |
1131 | &mask, &property, &mul, &table, &size); | |
1132 | if (rval < 0) | |
1133 | goto exit; | |
1134 | ||
1135 | val = control->value; | |
1136 | if (mul) { | |
1137 | val = control->value / mul; | |
1138 | } else if (table) { | |
1139 | rval = usecs_to_dev(control->value, table, size); | |
1140 | if (rval < 0) | |
1141 | goto exit; | |
1142 | val = rval; | |
1143 | rval = 0; | |
1144 | } | |
1145 | ||
1146 | mutex_lock(&sdev->mutex); | |
1147 | ||
1148 | if (sdev->power_state) { | |
1149 | if (mask) { | |
1150 | rval = si4713_read_property(sdev, property, &val); | |
1151 | if (rval < 0) | |
1152 | goto unlock; | |
1153 | val = set_bits(val, control->value, bit, mask); | |
1154 | } | |
1155 | ||
1156 | rval = si4713_write_property(sdev, property, val); | |
1157 | if (rval < 0) | |
1158 | goto unlock; | |
1159 | if (mask) | |
1160 | val = control->value; | |
1161 | } | |
1162 | ||
1163 | if (mul) { | |
1164 | *shadow = val * mul; | |
1165 | } else if (table) { | |
1166 | rval = dev_to_usecs(val, table, size); | |
1167 | if (rval < 0) | |
1168 | goto unlock; | |
1169 | *shadow = rval; | |
1170 | rval = 0; | |
1171 | } else { | |
1172 | *shadow = val; | |
1173 | } | |
1174 | ||
1175 | unlock: | |
1176 | mutex_unlock(&sdev->mutex); | |
1177 | exit: | |
1178 | return rval; | |
1179 | } | |
1180 | ||
1181 | static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f); | |
1182 | static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *); | |
1183 | /* | |
1184 | * si4713_setup - Sets the device up with current configuration. | |
1185 | * @sdev: si4713_device structure for the device we are communicating | |
1186 | */ | |
1187 | static int si4713_setup(struct si4713_device *sdev) | |
1188 | { | |
1189 | struct v4l2_ext_control ctrl; | |
1190 | struct v4l2_frequency f; | |
1191 | struct v4l2_modulator vm; | |
1192 | struct si4713_device *tmp; | |
1193 | int rval = 0; | |
1194 | ||
1195 | tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); | |
1196 | if (!tmp) | |
1197 | return -ENOMEM; | |
1198 | ||
1199 | /* Get a local copy to avoid race */ | |
1200 | mutex_lock(&sdev->mutex); | |
1201 | memcpy(tmp, sdev, sizeof(*sdev)); | |
1202 | mutex_unlock(&sdev->mutex); | |
1203 | ||
1204 | ctrl.id = V4L2_CID_RDS_TX_PI; | |
1205 | ctrl.value = tmp->rds_info.pi; | |
1206 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1207 | ||
1208 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_THRESHOLD; | |
1209 | ctrl.value = tmp->acomp_info.threshold; | |
1210 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1211 | ||
1212 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_GAIN; | |
1213 | ctrl.value = tmp->acomp_info.gain; | |
1214 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1215 | ||
1216 | ctrl.id = V4L2_CID_PILOT_TONE_FREQUENCY; | |
1217 | ctrl.value = tmp->pilot_info.frequency; | |
1218 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1219 | ||
1220 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME; | |
1221 | ctrl.value = tmp->acomp_info.attack_time; | |
1222 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1223 | ||
1224 | ctrl.id = V4L2_CID_PILOT_TONE_DEVIATION; | |
1225 | ctrl.value = tmp->pilot_info.deviation; | |
1226 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1227 | ||
1228 | ctrl.id = V4L2_CID_AUDIO_LIMITER_DEVIATION; | |
1229 | ctrl.value = tmp->limiter_info.deviation; | |
1230 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1231 | ||
1232 | ctrl.id = V4L2_CID_RDS_TX_DEVIATION; | |
1233 | ctrl.value = tmp->rds_info.deviation; | |
1234 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1235 | ||
1236 | ctrl.id = V4L2_CID_RDS_TX_PTY; | |
1237 | ctrl.value = tmp->rds_info.pty; | |
1238 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1239 | ||
1240 | ctrl.id = V4L2_CID_AUDIO_LIMITER_ENABLED; | |
1241 | ctrl.value = tmp->limiter_info.enabled; | |
1242 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1243 | ||
1244 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ENABLED; | |
1245 | ctrl.value = tmp->acomp_info.enabled; | |
1246 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1247 | ||
1248 | ctrl.id = V4L2_CID_PILOT_TONE_ENABLED; | |
1249 | ctrl.value = tmp->pilot_info.enabled; | |
1250 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1251 | ||
1252 | ctrl.id = V4L2_CID_AUDIO_LIMITER_RELEASE_TIME; | |
1253 | ctrl.value = tmp->limiter_info.release_time; | |
1254 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1255 | ||
1256 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME; | |
1257 | ctrl.value = tmp->acomp_info.release_time; | |
1258 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1259 | ||
1260 | ctrl.id = V4L2_CID_TUNE_PREEMPHASIS; | |
1261 | ctrl.value = tmp->preemphasis; | |
1262 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1263 | ||
1264 | ctrl.id = V4L2_CID_RDS_TX_PS_NAME; | |
1265 | rval |= si4713_set_rds_ps_name(sdev, tmp->rds_info.ps_name); | |
1266 | ||
1267 | ctrl.id = V4L2_CID_RDS_TX_RADIO_TEXT; | |
1268 | rval |= si4713_set_rds_radio_text(sdev, tmp->rds_info.radio_text); | |
1269 | ||
1270 | /* Device procedure needs to set frequency first */ | |
1271 | f.frequency = tmp->frequency ? tmp->frequency : DEFAULT_FREQUENCY; | |
1272 | f.frequency = si4713_to_v4l2(f.frequency); | |
1273 | rval |= si4713_s_frequency(&sdev->sd, &f); | |
1274 | ||
1275 | ctrl.id = V4L2_CID_TUNE_POWER_LEVEL; | |
1276 | ctrl.value = tmp->power_level; | |
1277 | rval |= si4713_write_econtrol_tune(sdev, &ctrl); | |
1278 | ||
1279 | ctrl.id = V4L2_CID_TUNE_ANTENNA_CAPACITOR; | |
1280 | ctrl.value = tmp->antenna_capacitor; | |
1281 | rval |= si4713_write_econtrol_tune(sdev, &ctrl); | |
1282 | ||
1283 | vm.index = 0; | |
1284 | if (tmp->stereo) | |
1285 | vm.txsubchans = V4L2_TUNER_SUB_STEREO; | |
1286 | else | |
1287 | vm.txsubchans = V4L2_TUNER_SUB_MONO; | |
1288 | if (tmp->rds_info.enabled) | |
1289 | vm.txsubchans |= V4L2_TUNER_SUB_RDS; | |
1290 | si4713_s_modulator(&sdev->sd, &vm); | |
1291 | ||
1292 | kfree(tmp); | |
1293 | ||
1294 | return rval; | |
1295 | } | |
1296 | ||
1297 | /* | |
1298 | * si4713_initialize - Sets the device up with default configuration. | |
1299 | * @sdev: si4713_device structure for the device we are communicating | |
1300 | */ | |
1301 | static int si4713_initialize(struct si4713_device *sdev) | |
1302 | { | |
1303 | int rval; | |
1304 | ||
1305 | rval = si4713_set_power_state(sdev, POWER_ON); | |
1306 | if (rval < 0) | |
1307 | goto exit; | |
1308 | ||
1309 | rval = si4713_checkrev(sdev); | |
1310 | if (rval < 0) | |
1311 | goto exit; | |
1312 | ||
1313 | rval = si4713_set_power_state(sdev, POWER_OFF); | |
1314 | if (rval < 0) | |
1315 | goto exit; | |
1316 | ||
1317 | mutex_lock(&sdev->mutex); | |
1318 | ||
1319 | sdev->rds_info.pi = DEFAULT_RDS_PI; | |
1320 | sdev->rds_info.pty = DEFAULT_RDS_PTY; | |
1321 | sdev->rds_info.deviation = DEFAULT_RDS_DEVIATION; | |
1322 | strlcpy(sdev->rds_info.ps_name, DEFAULT_RDS_PS_NAME, MAX_RDS_PS_NAME); | |
1323 | strlcpy(sdev->rds_info.radio_text, DEFAULT_RDS_RADIO_TEXT, | |
1324 | MAX_RDS_RADIO_TEXT); | |
1325 | sdev->rds_info.enabled = 1; | |
1326 | ||
1327 | sdev->limiter_info.release_time = DEFAULT_LIMITER_RTIME; | |
1328 | sdev->limiter_info.deviation = DEFAULT_LIMITER_DEV; | |
1329 | sdev->limiter_info.enabled = 1; | |
1330 | ||
1331 | sdev->pilot_info.deviation = DEFAULT_PILOT_DEVIATION; | |
1332 | sdev->pilot_info.frequency = DEFAULT_PILOT_FREQUENCY; | |
1333 | sdev->pilot_info.enabled = 1; | |
1334 | ||
1335 | sdev->acomp_info.release_time = DEFAULT_ACOMP_RTIME; | |
1336 | sdev->acomp_info.attack_time = DEFAULT_ACOMP_ATIME; | |
1337 | sdev->acomp_info.threshold = DEFAULT_ACOMP_THRESHOLD; | |
1338 | sdev->acomp_info.gain = DEFAULT_ACOMP_GAIN; | |
1339 | sdev->acomp_info.enabled = 1; | |
1340 | ||
1341 | sdev->frequency = DEFAULT_FREQUENCY; | |
1342 | sdev->preemphasis = DEFAULT_PREEMPHASIS; | |
1343 | sdev->mute = DEFAULT_MUTE; | |
1344 | sdev->power_level = DEFAULT_POWER_LEVEL; | |
1345 | sdev->antenna_capacitor = 0; | |
1346 | sdev->stereo = 1; | |
1347 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
1348 | ||
1349 | mutex_unlock(&sdev->mutex); | |
1350 | ||
1351 | exit: | |
1352 | return rval; | |
1353 | } | |
1354 | ||
1355 | /* read string property */ | |
1356 | static int si4713_read_econtrol_string(struct si4713_device *sdev, | |
1357 | struct v4l2_ext_control *control) | |
1358 | { | |
1359 | s32 rval = 0; | |
1360 | ||
1361 | switch (control->id) { | |
1362 | case V4L2_CID_RDS_TX_PS_NAME: | |
1363 | if (strlen(sdev->rds_info.ps_name) + 1 > control->size) { | |
1364 | control->size = MAX_RDS_PS_NAME + 1; | |
1365 | rval = -ENOSPC; | |
1366 | goto exit; | |
1367 | } | |
1368 | rval = copy_to_user(control->string, sdev->rds_info.ps_name, | |
1369 | strlen(sdev->rds_info.ps_name) + 1); | |
1370 | break; | |
1371 | ||
1372 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1373 | if (strlen(sdev->rds_info.radio_text) + 1 > control->size) { | |
1374 | control->size = MAX_RDS_RADIO_TEXT + 1; | |
1375 | rval = -ENOSPC; | |
1376 | goto exit; | |
1377 | } | |
1378 | rval = copy_to_user(control->string, sdev->rds_info.radio_text, | |
1379 | strlen(sdev->rds_info.radio_text) + 1); | |
1380 | break; | |
1381 | ||
1382 | default: | |
1383 | rval = -EINVAL; | |
1384 | break; | |
1385 | }; | |
1386 | ||
1387 | exit: | |
1388 | return rval; | |
1389 | } | |
1390 | ||
1391 | /* | |
1392 | * si4713_update_tune_status - update properties from tx_tune_status | |
1393 | * command. Must be called with sdev->mutex held. | |
1394 | * @sdev: si4713_device structure for the device we are communicating | |
1395 | */ | |
1396 | static int si4713_update_tune_status(struct si4713_device *sdev) | |
1397 | { | |
1398 | int rval; | |
1399 | u16 f = 0; | |
1400 | u8 p = 0, a = 0, n = 0; | |
1401 | ||
1402 | rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n); | |
1403 | ||
1404 | if (rval < 0) | |
1405 | goto exit; | |
1406 | ||
1407 | sdev->power_level = p; | |
1408 | sdev->antenna_capacitor = a; | |
1409 | sdev->tune_rnl = n; | |
1410 | ||
1411 | exit: | |
1412 | return rval; | |
1413 | } | |
1414 | ||
1415 | /* properties which use tx_tune_status */ | |
1416 | static int si4713_read_econtrol_tune(struct si4713_device *sdev, | |
1417 | struct v4l2_ext_control *control) | |
1418 | { | |
1419 | s32 rval = 0; | |
1420 | ||
1421 | mutex_lock(&sdev->mutex); | |
1422 | ||
1423 | if (sdev->power_state) { | |
1424 | rval = si4713_update_tune_status(sdev); | |
1425 | if (rval < 0) | |
1426 | goto unlock; | |
1427 | } | |
1428 | ||
1429 | switch (control->id) { | |
1430 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1431 | control->value = sdev->power_level; | |
1432 | break; | |
1433 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1434 | control->value = sdev->antenna_capacitor; | |
1435 | break; | |
1436 | default: | |
1437 | rval = -EINVAL; | |
1438 | }; | |
1439 | ||
1440 | unlock: | |
1441 | mutex_unlock(&sdev->mutex); | |
1442 | return rval; | |
1443 | } | |
1444 | ||
1445 | static int si4713_read_econtrol_integers(struct si4713_device *sdev, | |
1446 | struct v4l2_ext_control *control) | |
1447 | { | |
1448 | s32 rval; | |
1449 | u32 *shadow = NULL, val = 0; | |
1450 | s32 bit = 0, mask = 0; | |
1451 | u16 property = 0; | |
1452 | int mul = 0; | |
1453 | unsigned long *table = NULL; | |
1454 | int size = 0; | |
1455 | ||
1456 | rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit, | |
1457 | &mask, &property, &mul, &table, &size); | |
1458 | if (rval < 0) | |
1459 | goto exit; | |
1460 | ||
1461 | mutex_lock(&sdev->mutex); | |
1462 | ||
1463 | if (sdev->power_state) { | |
1464 | rval = si4713_read_property(sdev, property, &val); | |
1465 | if (rval < 0) | |
1466 | goto unlock; | |
1467 | ||
1468 | /* Keep negative values for threshold */ | |
1469 | if (control->id == V4L2_CID_AUDIO_COMPRESSION_THRESHOLD) | |
1470 | *shadow = (s16)val; | |
1471 | else if (mask) | |
1472 | *shadow = get_status_bit(val, bit, mask); | |
1473 | else if (mul) | |
1474 | *shadow = val * mul; | |
1475 | else | |
1476 | *shadow = dev_to_usecs(val, table, size); | |
1477 | } | |
1478 | ||
1479 | control->value = *shadow; | |
1480 | ||
1481 | unlock: | |
1482 | mutex_unlock(&sdev->mutex); | |
1483 | exit: | |
1484 | return rval; | |
1485 | } | |
1486 | ||
1487 | /* | |
1488 | * Video4Linux Subdev Interface | |
1489 | */ | |
1490 | /* si4713_s_ext_ctrls - set extended controls value */ | |
1491 | static int si4713_s_ext_ctrls(struct v4l2_subdev *sd, | |
1492 | struct v4l2_ext_controls *ctrls) | |
1493 | { | |
1494 | struct si4713_device *sdev = to_si4713_device(sd); | |
1495 | int i; | |
1496 | ||
1497 | if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX) | |
1498 | return -EINVAL; | |
1499 | ||
1500 | for (i = 0; i < ctrls->count; i++) { | |
1501 | int err; | |
1502 | ||
1503 | switch ((ctrls->controls + i)->id) { | |
1504 | case V4L2_CID_RDS_TX_PS_NAME: | |
1505 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1506 | err = si4713_write_econtrol_string(sdev, | |
1507 | ctrls->controls + i); | |
1508 | break; | |
1509 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1510 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1511 | err = si4713_write_econtrol_tune(sdev, | |
1512 | ctrls->controls + i); | |
1513 | break; | |
1514 | default: | |
1515 | err = si4713_write_econtrol_integers(sdev, | |
1516 | ctrls->controls + i); | |
1517 | } | |
1518 | ||
1519 | if (err < 0) { | |
1520 | ctrls->error_idx = i; | |
1521 | return err; | |
1522 | } | |
1523 | } | |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | /* si4713_g_ext_ctrls - get extended controls value */ | |
1529 | static int si4713_g_ext_ctrls(struct v4l2_subdev *sd, | |
1530 | struct v4l2_ext_controls *ctrls) | |
1531 | { | |
1532 | struct si4713_device *sdev = to_si4713_device(sd); | |
1533 | int i; | |
1534 | ||
1535 | if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX) | |
1536 | return -EINVAL; | |
1537 | ||
1538 | for (i = 0; i < ctrls->count; i++) { | |
1539 | int err; | |
1540 | ||
1541 | switch ((ctrls->controls + i)->id) { | |
1542 | case V4L2_CID_RDS_TX_PS_NAME: | |
1543 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1544 | err = si4713_read_econtrol_string(sdev, | |
1545 | ctrls->controls + i); | |
1546 | break; | |
1547 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1548 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1549 | err = si4713_read_econtrol_tune(sdev, | |
1550 | ctrls->controls + i); | |
1551 | break; | |
1552 | default: | |
1553 | err = si4713_read_econtrol_integers(sdev, | |
1554 | ctrls->controls + i); | |
1555 | } | |
1556 | ||
1557 | if (err < 0) { | |
1558 | ctrls->error_idx = i; | |
1559 | return err; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | return 0; | |
1564 | } | |
1565 | ||
1566 | /* si4713_queryctrl - enumerate control items */ | |
1567 | static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) | |
1568 | { | |
1569 | int rval = 0; | |
1570 | ||
1571 | switch (qc->id) { | |
1572 | /* User class controls */ | |
1573 | case V4L2_CID_AUDIO_MUTE: | |
1574 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, DEFAULT_MUTE); | |
1575 | break; | |
1576 | /* FM_TX class controls */ | |
1577 | case V4L2_CID_RDS_TX_PI: | |
1578 | rval = v4l2_ctrl_query_fill(qc, 0, 0xFFFF, 1, DEFAULT_RDS_PI); | |
1579 | break; | |
1580 | case V4L2_CID_RDS_TX_PTY: | |
1581 | rval = v4l2_ctrl_query_fill(qc, 0, 31, 1, DEFAULT_RDS_PTY); | |
1582 | break; | |
1583 | case V4L2_CID_RDS_TX_DEVIATION: | |
1584 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_DEVIATION, | |
1585 | 10, DEFAULT_RDS_DEVIATION); | |
1586 | break; | |
1587 | case V4L2_CID_RDS_TX_PS_NAME: | |
1588 | /* | |
1589 | * Report step as 8. From RDS spec, psname | |
1590 | * should be 8. But there are receivers which scroll strings | |
1591 | * sized as 8xN. | |
1592 | */ | |
1593 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_PS_NAME, 8, 0); | |
1594 | break; | |
1595 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1596 | /* | |
1597 | * Report step as 32 (2A block). From RDS spec, | |
1598 | * radio text should be 32 for 2A block. But there are receivers | |
1599 | * which scroll strings sized as 32xN. Setting default to 32. | |
1600 | */ | |
1601 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_RADIO_TEXT, 32, 0); | |
1602 | break; | |
1603 | ||
1604 | case V4L2_CID_AUDIO_LIMITER_ENABLED: | |
1605 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); | |
1606 | break; | |
1607 | case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: | |
1608 | rval = v4l2_ctrl_query_fill(qc, 250, MAX_LIMITER_RELEASE_TIME, | |
1609 | 50, DEFAULT_LIMITER_RTIME); | |
1610 | break; | |
1611 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: | |
1612 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_LIMITER_DEVIATION, | |
1613 | 10, DEFAULT_LIMITER_DEV); | |
1614 | break; | |
1615 | ||
1616 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: | |
1617 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); | |
1618 | break; | |
1619 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: | |
1620 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_GAIN, 1, | |
1621 | DEFAULT_ACOMP_GAIN); | |
1622 | break; | |
1623 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: | |
1624 | rval = v4l2_ctrl_query_fill(qc, MIN_ACOMP_THRESHOLD, | |
1625 | MAX_ACOMP_THRESHOLD, 1, | |
1626 | DEFAULT_ACOMP_THRESHOLD); | |
1627 | break; | |
1628 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: | |
1629 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_ATTACK_TIME, | |
1630 | 500, DEFAULT_ACOMP_ATIME); | |
1631 | break; | |
1632 | case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: | |
1633 | rval = v4l2_ctrl_query_fill(qc, 100000, MAX_ACOMP_RELEASE_TIME, | |
1634 | 100000, DEFAULT_ACOMP_RTIME); | |
1635 | break; | |
1636 | ||
1637 | case V4L2_CID_PILOT_TONE_ENABLED: | |
1638 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); | |
1639 | break; | |
1640 | case V4L2_CID_PILOT_TONE_DEVIATION: | |
1641 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_DEVIATION, | |
1642 | 10, DEFAULT_PILOT_DEVIATION); | |
1643 | break; | |
1644 | case V4L2_CID_PILOT_TONE_FREQUENCY: | |
1645 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_FREQUENCY, | |
1646 | 1, DEFAULT_PILOT_FREQUENCY); | |
1647 | break; | |
1648 | ||
1649 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1650 | rval = v4l2_ctrl_query_fill(qc, V4L2_PREEMPHASIS_DISABLED, | |
1651 | V4L2_PREEMPHASIS_75_uS, 1, | |
1652 | V4L2_PREEMPHASIS_50_uS); | |
1653 | break; | |
1654 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1655 | rval = v4l2_ctrl_query_fill(qc, 0, 120, 1, DEFAULT_POWER_LEVEL); | |
1656 | break; | |
1657 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1658 | rval = v4l2_ctrl_query_fill(qc, 0, 191, 1, 0); | |
1659 | break; | |
1660 | default: | |
1661 | rval = -EINVAL; | |
1662 | break; | |
1663 | }; | |
1664 | ||
1665 | return rval; | |
1666 | } | |
1667 | ||
1668 | /* si4713_g_ctrl - get the value of a control */ | |
1669 | static int si4713_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
1670 | { | |
1671 | struct si4713_device *sdev = to_si4713_device(sd); | |
1672 | int rval = 0; | |
1673 | ||
1674 | if (!sdev) | |
1675 | return -ENODEV; | |
1676 | ||
1677 | mutex_lock(&sdev->mutex); | |
1678 | ||
1679 | if (sdev->power_state) { | |
1680 | rval = si4713_read_property(sdev, SI4713_TX_LINE_INPUT_MUTE, | |
1681 | &sdev->mute); | |
1682 | ||
1683 | if (rval < 0) | |
1684 | goto unlock; | |
1685 | } | |
1686 | ||
1687 | switch (ctrl->id) { | |
1688 | case V4L2_CID_AUDIO_MUTE: | |
1689 | ctrl->value = get_mute(sdev->mute); | |
1690 | break; | |
1691 | } | |
1692 | ||
1693 | unlock: | |
1694 | mutex_unlock(&sdev->mutex); | |
1695 | return rval; | |
1696 | } | |
1697 | ||
1698 | /* si4713_s_ctrl - set the value of a control */ | |
1699 | static int si4713_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
1700 | { | |
1701 | struct si4713_device *sdev = to_si4713_device(sd); | |
1702 | int rval = 0; | |
1703 | ||
1704 | if (!sdev) | |
1705 | return -ENODEV; | |
1706 | ||
1707 | switch (ctrl->id) { | |
1708 | case V4L2_CID_AUDIO_MUTE: | |
1709 | if (ctrl->value) { | |
1710 | rval = si4713_set_mute(sdev, ctrl->value); | |
1711 | if (rval < 0) | |
1712 | goto exit; | |
1713 | ||
1714 | rval = si4713_set_power_state(sdev, POWER_DOWN); | |
1715 | } else { | |
1716 | rval = si4713_set_power_state(sdev, POWER_UP); | |
1717 | if (rval < 0) | |
1718 | goto exit; | |
1719 | ||
1720 | rval = si4713_setup(sdev); | |
1721 | if (rval < 0) | |
1722 | goto exit; | |
1723 | ||
1724 | rval = si4713_set_mute(sdev, ctrl->value); | |
1725 | } | |
1726 | break; | |
1727 | } | |
1728 | ||
1729 | exit: | |
1730 | return rval; | |
1731 | } | |
1732 | ||
1733 | /* si4713_ioctl - deal with private ioctls (only rnl for now) */ | |
1734 | long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) | |
1735 | { | |
1736 | struct si4713_device *sdev = to_si4713_device(sd); | |
1737 | struct si4713_rnl *rnl = arg; | |
1738 | u16 frequency; | |
1739 | int rval = 0; | |
1740 | ||
1741 | if (!arg) | |
1742 | return -EINVAL; | |
1743 | ||
1744 | mutex_lock(&sdev->mutex); | |
1745 | switch (cmd) { | |
1746 | case SI4713_IOC_MEASURE_RNL: | |
1747 | frequency = v4l2_to_si4713(rnl->frequency); | |
1748 | ||
1749 | if (sdev->power_state) { | |
1750 | /* Set desired measurement frequency */ | |
1751 | rval = si4713_tx_tune_measure(sdev, frequency, 0); | |
1752 | if (rval < 0) | |
1753 | goto unlock; | |
1754 | /* get results from tune status */ | |
1755 | rval = si4713_update_tune_status(sdev); | |
1756 | if (rval < 0) | |
1757 | goto unlock; | |
1758 | } | |
1759 | rnl->rnl = sdev->tune_rnl; | |
1760 | break; | |
1761 | ||
1762 | default: | |
1763 | /* nothing */ | |
1764 | rval = -ENOIOCTLCMD; | |
1765 | } | |
1766 | ||
1767 | unlock: | |
1768 | mutex_unlock(&sdev->mutex); | |
1769 | return rval; | |
1770 | } | |
1771 | ||
1772 | static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { | |
1773 | .queryctrl = si4713_queryctrl, | |
1774 | .g_ext_ctrls = si4713_g_ext_ctrls, | |
1775 | .s_ext_ctrls = si4713_s_ext_ctrls, | |
1776 | .g_ctrl = si4713_g_ctrl, | |
1777 | .s_ctrl = si4713_s_ctrl, | |
1778 | .ioctl = si4713_ioctl, | |
1779 | }; | |
1780 | ||
1781 | /* si4713_g_modulator - get modulator attributes */ | |
1782 | static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) | |
1783 | { | |
1784 | struct si4713_device *sdev = to_si4713_device(sd); | |
1785 | int rval = 0; | |
1786 | ||
1787 | if (!sdev) { | |
1788 | rval = -ENODEV; | |
1789 | goto exit; | |
1790 | } | |
1791 | ||
1792 | if (vm->index > 0) { | |
1793 | rval = -EINVAL; | |
1794 | goto exit; | |
1795 | } | |
1796 | ||
1797 | strncpy(vm->name, "FM Modulator", 32); | |
1798 | vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW | | |
1799 | V4L2_TUNER_CAP_RDS; | |
1800 | ||
1801 | /* Report current frequency range limits */ | |
1802 | vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW); | |
1803 | vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH); | |
1804 | ||
1805 | mutex_lock(&sdev->mutex); | |
1806 | ||
1807 | if (sdev->power_state) { | |
1808 | u32 comp_en = 0; | |
1809 | ||
1810 | rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, | |
1811 | &comp_en); | |
1812 | if (rval < 0) | |
1813 | goto unlock; | |
1814 | ||
1815 | sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); | |
1816 | sdev->rds_info.enabled = get_status_bit(comp_en, 2, 1 << 2); | |
1817 | } | |
1818 | ||
1819 | /* Report current audio mode: mono or stereo */ | |
1820 | if (sdev->stereo) | |
1821 | vm->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1822 | else | |
1823 | vm->txsubchans = V4L2_TUNER_SUB_MONO; | |
1824 | ||
1825 | /* Report rds feature status */ | |
1826 | if (sdev->rds_info.enabled) | |
1827 | vm->txsubchans |= V4L2_TUNER_SUB_RDS; | |
1828 | else | |
1829 | vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; | |
1830 | ||
1831 | unlock: | |
1832 | mutex_unlock(&sdev->mutex); | |
1833 | exit: | |
1834 | return rval; | |
1835 | } | |
1836 | ||
1837 | /* si4713_s_modulator - set modulator attributes */ | |
1838 | static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) | |
1839 | { | |
1840 | struct si4713_device *sdev = to_si4713_device(sd); | |
1841 | int rval = 0; | |
1842 | u16 stereo, rds; | |
1843 | u32 p; | |
1844 | ||
a65f3159 HV |
1845 | if (!sdev) |
1846 | return -ENODEV; | |
02bee89e | 1847 | |
a65f3159 HV |
1848 | if (vm->index > 0) |
1849 | return -EINVAL; | |
02bee89e EV |
1850 | |
1851 | /* Set audio mode: mono or stereo */ | |
1852 | if (vm->txsubchans & V4L2_TUNER_SUB_STEREO) | |
1853 | stereo = 1; | |
1854 | else if (vm->txsubchans & V4L2_TUNER_SUB_MONO) | |
1855 | stereo = 0; | |
1856 | else | |
a65f3159 | 1857 | return -EINVAL; |
02bee89e EV |
1858 | |
1859 | rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS); | |
1860 | ||
1861 | mutex_lock(&sdev->mutex); | |
1862 | ||
1863 | if (sdev->power_state) { | |
1864 | rval = si4713_read_property(sdev, | |
1865 | SI4713_TX_COMPONENT_ENABLE, &p); | |
1866 | if (rval < 0) | |
1867 | goto unlock; | |
1868 | ||
1869 | p = set_bits(p, stereo, 1, 1 << 1); | |
1870 | p = set_bits(p, rds, 2, 1 << 2); | |
1871 | ||
1872 | rval = si4713_write_property(sdev, | |
1873 | SI4713_TX_COMPONENT_ENABLE, p); | |
1874 | if (rval < 0) | |
1875 | goto unlock; | |
1876 | } | |
1877 | ||
1878 | sdev->stereo = stereo; | |
1879 | sdev->rds_info.enabled = rds; | |
1880 | ||
1881 | unlock: | |
1882 | mutex_unlock(&sdev->mutex); | |
02bee89e EV |
1883 | return rval; |
1884 | } | |
1885 | ||
1886 | /* si4713_g_frequency - get tuner or modulator radio frequency */ | |
1887 | static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
1888 | { | |
1889 | struct si4713_device *sdev = to_si4713_device(sd); | |
1890 | int rval = 0; | |
1891 | ||
1892 | f->type = V4L2_TUNER_RADIO; | |
1893 | ||
1894 | mutex_lock(&sdev->mutex); | |
1895 | ||
1896 | if (sdev->power_state) { | |
1897 | u16 freq; | |
1898 | u8 p, a, n; | |
1899 | ||
1900 | rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); | |
1901 | if (rval < 0) | |
1902 | goto unlock; | |
1903 | ||
1904 | sdev->frequency = freq; | |
1905 | } | |
1906 | ||
1907 | f->frequency = si4713_to_v4l2(sdev->frequency); | |
1908 | ||
1909 | unlock: | |
1910 | mutex_unlock(&sdev->mutex); | |
1911 | return rval; | |
1912 | } | |
1913 | ||
1914 | /* si4713_s_frequency - set tuner or modulator radio frequency */ | |
1915 | static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
1916 | { | |
1917 | struct si4713_device *sdev = to_si4713_device(sd); | |
1918 | int rval = 0; | |
1919 | u16 frequency = v4l2_to_si4713(f->frequency); | |
1920 | ||
1921 | /* Check frequency range */ | |
1922 | if (frequency < FREQ_RANGE_LOW || frequency > FREQ_RANGE_HIGH) | |
1923 | return -EDOM; | |
1924 | ||
1925 | mutex_lock(&sdev->mutex); | |
1926 | ||
1927 | if (sdev->power_state) { | |
1928 | rval = si4713_tx_tune_freq(sdev, frequency); | |
1929 | if (rval < 0) | |
1930 | goto unlock; | |
1931 | frequency = rval; | |
1932 | rval = 0; | |
1933 | } | |
1934 | sdev->frequency = frequency; | |
1935 | f->frequency = si4713_to_v4l2(frequency); | |
1936 | ||
1937 | unlock: | |
1938 | mutex_unlock(&sdev->mutex); | |
1939 | return rval; | |
1940 | } | |
1941 | ||
1942 | static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = { | |
1943 | .g_frequency = si4713_g_frequency, | |
1944 | .s_frequency = si4713_s_frequency, | |
1945 | .g_modulator = si4713_g_modulator, | |
1946 | .s_modulator = si4713_s_modulator, | |
1947 | }; | |
1948 | ||
1949 | static const struct v4l2_subdev_ops si4713_subdev_ops = { | |
1950 | .core = &si4713_subdev_core_ops, | |
1951 | .tuner = &si4713_subdev_tuner_ops, | |
1952 | }; | |
1953 | ||
1954 | /* | |
1955 | * I2C driver interface | |
1956 | */ | |
1957 | /* si4713_probe - probe for the device */ | |
1958 | static int si4713_probe(struct i2c_client *client, | |
1959 | const struct i2c_device_id *id) | |
1960 | { | |
1961 | struct si4713_device *sdev; | |
1962 | int rval; | |
1963 | ||
1964 | sdev = kzalloc(sizeof *sdev, GFP_KERNEL); | |
1965 | if (!sdev) { | |
1966 | dev_err(&client->dev, "Failed to alloc video device.\n"); | |
1967 | rval = -ENOMEM; | |
1968 | goto exit; | |
1969 | } | |
1970 | ||
1971 | sdev->platform_data = client->dev.platform_data; | |
1972 | if (!sdev->platform_data) { | |
1973 | v4l2_err(&sdev->sd, "No platform data registered.\n"); | |
1974 | rval = -ENODEV; | |
1975 | goto free_sdev; | |
1976 | } | |
1977 | ||
1978 | v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops); | |
1979 | ||
1980 | mutex_init(&sdev->mutex); | |
1981 | init_completion(&sdev->work); | |
1982 | ||
1983 | if (client->irq) { | |
1984 | rval = request_irq(client->irq, | |
1985 | si4713_handler, IRQF_TRIGGER_FALLING | IRQF_DISABLED, | |
1986 | client->name, sdev); | |
1987 | if (rval < 0) { | |
1988 | v4l2_err(&sdev->sd, "Could not request IRQ\n"); | |
1989 | goto free_sdev; | |
1990 | } | |
1991 | v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n"); | |
1992 | } else { | |
1993 | v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n"); | |
1994 | } | |
1995 | ||
1996 | rval = si4713_initialize(sdev); | |
1997 | if (rval < 0) { | |
1998 | v4l2_err(&sdev->sd, "Failed to probe device information.\n"); | |
1999 | goto free_irq; | |
2000 | } | |
2001 | ||
2002 | return 0; | |
2003 | ||
2004 | free_irq: | |
2005 | if (client->irq) | |
2006 | free_irq(client->irq, sdev); | |
2007 | free_sdev: | |
2008 | kfree(sdev); | |
2009 | exit: | |
2010 | return rval; | |
2011 | } | |
2012 | ||
2013 | /* si4713_remove - remove the device */ | |
2014 | static int si4713_remove(struct i2c_client *client) | |
2015 | { | |
2016 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
2017 | struct si4713_device *sdev = to_si4713_device(sd); | |
2018 | ||
2019 | if (sdev->power_state) | |
2020 | si4713_set_power_state(sdev, POWER_DOWN); | |
2021 | ||
2022 | if (client->irq > 0) | |
2023 | free_irq(client->irq, sdev); | |
2024 | ||
2025 | v4l2_device_unregister_subdev(sd); | |
2026 | ||
2027 | kfree(sdev); | |
2028 | ||
2029 | return 0; | |
2030 | } | |
2031 | ||
2032 | /* si4713_i2c_driver - i2c driver interface */ | |
2033 | static const struct i2c_device_id si4713_id[] = { | |
2034 | { "si4713" , 0 }, | |
2035 | { }, | |
2036 | }; | |
2037 | MODULE_DEVICE_TABLE(i2c, si4713_id); | |
2038 | ||
2039 | static struct i2c_driver si4713_i2c_driver = { | |
2040 | .driver = { | |
2041 | .name = "si4713", | |
2042 | }, | |
2043 | .probe = si4713_probe, | |
2044 | .remove = si4713_remove, | |
2045 | .id_table = si4713_id, | |
2046 | }; | |
2047 | ||
2048 | /* Module Interface */ | |
2049 | static int __init si4713_module_init(void) | |
2050 | { | |
2051 | return i2c_add_driver(&si4713_i2c_driver); | |
2052 | } | |
2053 | ||
2054 | static void __exit si4713_module_exit(void) | |
2055 | { | |
2056 | i2c_del_driver(&si4713_i2c_driver); | |
2057 | } | |
2058 | ||
2059 | module_init(si4713_module_init); | |
2060 | module_exit(si4713_module_exit); | |
2061 |