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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> |
00df055a JN |
30 | #include <linux/gpio.h> |
31 | #include <linux/regulator/consumer.h> | |
02bee89e EV |
32 | #include <media/v4l2-device.h> |
33 | #include <media/v4l2-ioctl.h> | |
34 | #include <media/v4l2-common.h> | |
35 | ||
36 | #include "si4713-i2c.h" | |
37 | ||
38 | /* module parameters */ | |
39 | static int debug; | |
40 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
41 | MODULE_PARM_DESC(debug, "Debug level (0 - 2)"); | |
42 | ||
43 | MODULE_LICENSE("GPL"); | |
44 | MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>"); | |
45 | MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter"); | |
46 | MODULE_VERSION("0.0.1"); | |
47 | ||
00df055a JN |
48 | static const char *si4713_supply_names[SI4713_NUM_SUPPLIES] = { |
49 | "vio", | |
50 | "vdd", | |
51 | }; | |
52 | ||
02bee89e EV |
53 | #define DEFAULT_RDS_PI 0x00 |
54 | #define DEFAULT_RDS_PTY 0x00 | |
55 | #define DEFAULT_RDS_PS_NAME "" | |
56 | #define DEFAULT_RDS_RADIO_TEXT DEFAULT_RDS_PS_NAME | |
57 | #define DEFAULT_RDS_DEVIATION 0x00C8 | |
58 | #define DEFAULT_RDS_PS_REPEAT_COUNT 0x0003 | |
59 | #define DEFAULT_LIMITER_RTIME 0x1392 | |
60 | #define DEFAULT_LIMITER_DEV 0x102CA | |
61 | #define DEFAULT_PILOT_FREQUENCY 0x4A38 | |
62 | #define DEFAULT_PILOT_DEVIATION 0x1A5E | |
63 | #define DEFAULT_ACOMP_ATIME 0x0000 | |
64 | #define DEFAULT_ACOMP_RTIME 0xF4240L | |
65 | #define DEFAULT_ACOMP_GAIN 0x0F | |
66 | #define DEFAULT_ACOMP_THRESHOLD (-0x28) | |
67 | #define DEFAULT_MUTE 0x01 | |
68 | #define DEFAULT_POWER_LEVEL 88 | |
69 | #define DEFAULT_FREQUENCY 8800 | |
70 | #define DEFAULT_PREEMPHASIS FMPE_EU | |
71 | #define DEFAULT_TUNE_RNL 0xFF | |
72 | ||
73 | #define to_si4713_device(sd) container_of(sd, struct si4713_device, sd) | |
74 | ||
75 | /* frequency domain transformation (using times 10 to avoid floats) */ | |
76 | #define FREQDEV_UNIT 100000 | |
77 | #define FREQV4L2_MULTI 625 | |
78 | #define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI) | |
79 | #define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT) | |
80 | #define FREQ_RANGE_LOW 7600 | |
81 | #define FREQ_RANGE_HIGH 10800 | |
82 | ||
83 | #define MAX_ARGS 7 | |
84 | ||
85 | #define RDS_BLOCK 8 | |
86 | #define RDS_BLOCK_CLEAR 0x03 | |
87 | #define RDS_BLOCK_LOAD 0x04 | |
88 | #define RDS_RADIOTEXT_2A 0x20 | |
89 | #define RDS_RADIOTEXT_BLK_SIZE 4 | |
90 | #define RDS_RADIOTEXT_INDEX_MAX 0x0F | |
91 | #define RDS_CARRIAGE_RETURN 0x0D | |
92 | ||
93 | #define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0)) | |
94 | ||
95 | #define get_status_bit(p, b, m) (((p) & (m)) >> (b)) | |
96 | #define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b))) | |
97 | ||
98 | #define ATTACK_TIME_UNIT 500 | |
99 | ||
100 | #define POWER_OFF 0x00 | |
101 | #define POWER_ON 0x01 | |
102 | ||
103 | #define msb(x) ((u8)((u16) x >> 8)) | |
104 | #define lsb(x) ((u8)((u16) x & 0x00FF)) | |
105 | #define compose_u16(msb, lsb) (((u16)msb << 8) | lsb) | |
106 | #define check_command_failed(status) (!(status & SI4713_CTS) || \ | |
107 | (status & SI4713_ERR)) | |
108 | /* mute definition */ | |
109 | #define set_mute(p) ((p & 1) | ((p & 1) << 1)); | |
110 | #define get_mute(p) (p & 0x01) | |
111 | ||
112 | #ifdef DEBUG | |
113 | #define DBG_BUFFER(device, message, buffer, size) \ | |
114 | { \ | |
115 | int i; \ | |
116 | char str[(size)*5]; \ | |
117 | for (i = 0; i < size; i++) \ | |
118 | sprintf(str + i * 5, " 0x%02x", buffer[i]); \ | |
119 | v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \ | |
120 | } | |
121 | #else | |
122 | #define DBG_BUFFER(device, message, buffer, size) | |
123 | #endif | |
124 | ||
125 | /* | |
126 | * Values for limiter release time (sorted by second column) | |
127 | * device release | |
128 | * value time (us) | |
129 | */ | |
130 | static long limiter_times[] = { | |
131 | 2000, 250, | |
132 | 1000, 500, | |
133 | 510, 1000, | |
134 | 255, 2000, | |
135 | 170, 3000, | |
136 | 127, 4020, | |
137 | 102, 5010, | |
138 | 85, 6020, | |
139 | 73, 7010, | |
140 | 64, 7990, | |
141 | 57, 8970, | |
142 | 51, 10030, | |
143 | 25, 20470, | |
144 | 17, 30110, | |
145 | 13, 39380, | |
146 | 10, 51190, | |
147 | 8, 63690, | |
148 | 7, 73140, | |
149 | 6, 85330, | |
150 | 5, 102390, | |
151 | }; | |
152 | ||
153 | /* | |
154 | * Values for audio compression release time (sorted by second column) | |
155 | * device release | |
156 | * value time (us) | |
157 | */ | |
158 | static unsigned long acomp_rtimes[] = { | |
159 | 0, 100000, | |
160 | 1, 200000, | |
161 | 2, 350000, | |
162 | 3, 525000, | |
163 | 4, 1000000, | |
164 | }; | |
165 | ||
166 | /* | |
167 | * Values for preemphasis (sorted by second column) | |
168 | * device preemphasis | |
169 | * value value (v4l2) | |
170 | */ | |
171 | static unsigned long preemphasis_values[] = { | |
172 | FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED, | |
173 | FMPE_EU, V4L2_PREEMPHASIS_50_uS, | |
174 | FMPE_USA, V4L2_PREEMPHASIS_75_uS, | |
175 | }; | |
176 | ||
177 | static int usecs_to_dev(unsigned long usecs, unsigned long const array[], | |
178 | int size) | |
179 | { | |
180 | int i; | |
181 | int rval = -EINVAL; | |
182 | ||
183 | for (i = 0; i < size / 2; i++) | |
184 | if (array[(i * 2) + 1] >= usecs) { | |
185 | rval = array[i * 2]; | |
186 | break; | |
187 | } | |
188 | ||
189 | return rval; | |
190 | } | |
191 | ||
192 | static unsigned long dev_to_usecs(int value, unsigned long const array[], | |
193 | int size) | |
194 | { | |
195 | int i; | |
196 | int rval = -EINVAL; | |
197 | ||
198 | for (i = 0; i < size / 2; i++) | |
199 | if (array[i * 2] == value) { | |
200 | rval = array[(i * 2) + 1]; | |
201 | break; | |
202 | } | |
203 | ||
204 | return rval; | |
205 | } | |
206 | ||
207 | /* si4713_handler: IRQ handler, just complete work */ | |
208 | static irqreturn_t si4713_handler(int irq, void *dev) | |
209 | { | |
210 | struct si4713_device *sdev = dev; | |
211 | ||
212 | v4l2_dbg(2, debug, &sdev->sd, | |
213 | "%s: sending signal to completion work.\n", __func__); | |
214 | complete(&sdev->work); | |
215 | ||
216 | return IRQ_HANDLED; | |
217 | } | |
218 | ||
219 | /* | |
220 | * si4713_send_command - sends a command to si4713 and waits its response | |
221 | * @sdev: si4713_device structure for the device we are communicating | |
222 | * @command: command id | |
223 | * @args: command arguments we are sending (up to 7) | |
224 | * @argn: actual size of @args | |
225 | * @response: buffer to place the expected response from the device (up to 15) | |
226 | * @respn: actual size of @response | |
227 | * @usecs: amount of time to wait before reading the response (in usecs) | |
228 | */ | |
229 | static int si4713_send_command(struct si4713_device *sdev, const u8 command, | |
230 | const u8 args[], const int argn, | |
231 | u8 response[], const int respn, const int usecs) | |
232 | { | |
233 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
234 | u8 data1[MAX_ARGS + 1]; | |
235 | int err; | |
236 | ||
237 | if (!client->adapter) | |
238 | return -ENODEV; | |
239 | ||
240 | /* First send the command and its arguments */ | |
241 | data1[0] = command; | |
242 | memcpy(data1 + 1, args, argn); | |
243 | DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1); | |
244 | ||
245 | err = i2c_master_send(client, data1, argn + 1); | |
246 | if (err != argn + 1) { | |
247 | v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n", | |
248 | command); | |
249 | return (err > 0) ? -EIO : err; | |
250 | } | |
251 | ||
252 | /* Wait response from interrupt */ | |
253 | if (!wait_for_completion_timeout(&sdev->work, | |
254 | usecs_to_jiffies(usecs) + 1)) | |
255 | v4l2_warn(&sdev->sd, | |
256 | "(%s) Device took too much time to answer.\n", | |
257 | __func__); | |
258 | ||
259 | /* Then get the response */ | |
260 | err = i2c_master_recv(client, response, respn); | |
261 | if (err != respn) { | |
262 | v4l2_err(&sdev->sd, | |
263 | "Error while reading response for command 0x%02x\n", | |
264 | command); | |
265 | return (err > 0) ? -EIO : err; | |
266 | } | |
267 | ||
268 | DBG_BUFFER(&sdev->sd, "Response", response, respn); | |
269 | if (check_command_failed(response[0])) | |
270 | return -EBUSY; | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
275 | /* | |
276 | * si4713_read_property - reads a si4713 property | |
277 | * @sdev: si4713_device structure for the device we are communicating | |
278 | * @prop: property identification number | |
279 | * @pv: property value to be returned on success | |
280 | */ | |
281 | static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv) | |
282 | { | |
283 | int err; | |
284 | u8 val[SI4713_GET_PROP_NRESP]; | |
285 | /* | |
286 | * .First byte = 0 | |
287 | * .Second byte = property's MSB | |
288 | * .Third byte = property's LSB | |
289 | */ | |
290 | const u8 args[SI4713_GET_PROP_NARGS] = { | |
291 | 0x00, | |
292 | msb(prop), | |
293 | lsb(prop), | |
294 | }; | |
295 | ||
296 | err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY, | |
297 | args, ARRAY_SIZE(args), val, | |
298 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
299 | ||
300 | if (err < 0) | |
301 | return err; | |
302 | ||
303 | *pv = compose_u16(val[2], val[3]); | |
304 | ||
305 | v4l2_dbg(1, debug, &sdev->sd, | |
306 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
307 | __func__, prop, *pv, val[0]); | |
308 | ||
309 | return err; | |
310 | } | |
311 | ||
312 | /* | |
313 | * si4713_write_property - modifies a si4713 property | |
314 | * @sdev: si4713_device structure for the device we are communicating | |
315 | * @prop: property identification number | |
316 | * @val: new value for that property | |
317 | */ | |
318 | static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val) | |
319 | { | |
320 | int rval; | |
321 | u8 resp[SI4713_SET_PROP_NRESP]; | |
322 | /* | |
323 | * .First byte = 0 | |
324 | * .Second byte = property's MSB | |
325 | * .Third byte = property's LSB | |
326 | * .Fourth byte = value's MSB | |
327 | * .Fifth byte = value's LSB | |
328 | */ | |
329 | const u8 args[SI4713_SET_PROP_NARGS] = { | |
330 | 0x00, | |
331 | msb(prop), | |
332 | lsb(prop), | |
333 | msb(val), | |
334 | lsb(val), | |
335 | }; | |
336 | ||
337 | rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY, | |
338 | args, ARRAY_SIZE(args), | |
339 | resp, ARRAY_SIZE(resp), | |
340 | DEFAULT_TIMEOUT); | |
341 | ||
342 | if (rval < 0) | |
343 | return rval; | |
344 | ||
345 | v4l2_dbg(1, debug, &sdev->sd, | |
346 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
347 | __func__, prop, val, resp[0]); | |
348 | ||
349 | /* | |
350 | * As there is no command response for SET_PROPERTY, | |
351 | * wait Tcomp time to finish before proceed, in order | |
352 | * to have property properly set. | |
353 | */ | |
354 | msleep(TIMEOUT_SET_PROPERTY); | |
355 | ||
356 | return rval; | |
357 | } | |
358 | ||
359 | /* | |
360 | * si4713_powerup - Powers the device up | |
361 | * @sdev: si4713_device structure for the device we are communicating | |
362 | */ | |
363 | static int si4713_powerup(struct si4713_device *sdev) | |
364 | { | |
365 | int err; | |
366 | u8 resp[SI4713_PWUP_NRESP]; | |
367 | /* | |
368 | * .First byte = Enabled interrupts and boot function | |
369 | * .Second byte = Input operation mode | |
370 | */ | |
371 | const u8 args[SI4713_PWUP_NARGS] = { | |
372 | SI4713_PWUP_CTSIEN | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX, | |
373 | SI4713_PWUP_OPMOD_ANALOG, | |
374 | }; | |
375 | ||
376 | if (sdev->power_state) | |
377 | return 0; | |
378 | ||
00df055a JN |
379 | err = regulator_bulk_enable(ARRAY_SIZE(sdev->supplies), |
380 | sdev->supplies); | |
381 | if (err) { | |
382 | v4l2_err(&sdev->sd, "Failed to enable supplies: %d\n", err); | |
383 | return err; | |
384 | } | |
385 | if (gpio_is_valid(sdev->gpio_reset)) { | |
386 | udelay(50); | |
387 | gpio_set_value(sdev->gpio_reset, 1); | |
388 | } | |
389 | ||
02bee89e EV |
390 | err = si4713_send_command(sdev, SI4713_CMD_POWER_UP, |
391 | args, ARRAY_SIZE(args), | |
392 | resp, ARRAY_SIZE(resp), | |
393 | TIMEOUT_POWER_UP); | |
394 | ||
395 | if (!err) { | |
396 | v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n", | |
397 | resp[0]); | |
398 | v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n"); | |
399 | sdev->power_state = POWER_ON; | |
400 | ||
401 | err = si4713_write_property(sdev, SI4713_GPO_IEN, | |
402 | SI4713_STC_INT | SI4713_CTS); | |
403 | } else { | |
00df055a JN |
404 | if (gpio_is_valid(sdev->gpio_reset)) |
405 | gpio_set_value(sdev->gpio_reset, 0); | |
406 | err = regulator_bulk_disable(ARRAY_SIZE(sdev->supplies), | |
407 | sdev->supplies); | |
408 | if (err) | |
409 | v4l2_err(&sdev->sd, | |
410 | "Failed to disable supplies: %d\n", err); | |
02bee89e EV |
411 | } |
412 | ||
413 | return err; | |
414 | } | |
415 | ||
416 | /* | |
417 | * si4713_powerdown - Powers the device down | |
418 | * @sdev: si4713_device structure for the device we are communicating | |
419 | */ | |
420 | static int si4713_powerdown(struct si4713_device *sdev) | |
421 | { | |
422 | int err; | |
423 | u8 resp[SI4713_PWDN_NRESP]; | |
424 | ||
425 | if (!sdev->power_state) | |
426 | return 0; | |
427 | ||
428 | err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN, | |
429 | NULL, 0, | |
430 | resp, ARRAY_SIZE(resp), | |
431 | DEFAULT_TIMEOUT); | |
432 | ||
433 | if (!err) { | |
434 | v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", | |
435 | resp[0]); | |
436 | v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); | |
00df055a JN |
437 | if (gpio_is_valid(sdev->gpio_reset)) |
438 | gpio_set_value(sdev->gpio_reset, 0); | |
439 | err = regulator_bulk_disable(ARRAY_SIZE(sdev->supplies), | |
440 | sdev->supplies); | |
441 | if (err) | |
442 | v4l2_err(&sdev->sd, | |
443 | "Failed to disable supplies: %d\n", err); | |
02bee89e EV |
444 | sdev->power_state = POWER_OFF; |
445 | } | |
446 | ||
447 | return err; | |
448 | } | |
449 | ||
450 | /* | |
451 | * si4713_checkrev - Checks if we are treating a device with the correct rev. | |
452 | * @sdev: si4713_device structure for the device we are communicating | |
453 | */ | |
454 | static int si4713_checkrev(struct si4713_device *sdev) | |
455 | { | |
456 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
457 | int rval; | |
458 | u8 resp[SI4713_GETREV_NRESP]; | |
459 | ||
460 | mutex_lock(&sdev->mutex); | |
461 | ||
462 | rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, | |
463 | NULL, 0, | |
464 | resp, ARRAY_SIZE(resp), | |
465 | DEFAULT_TIMEOUT); | |
466 | ||
467 | if (rval < 0) | |
468 | goto unlock; | |
469 | ||
470 | if (resp[1] == SI4713_PRODUCT_NUMBER) { | |
471 | v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n", | |
472 | client->addr << 1, client->adapter->name); | |
473 | } else { | |
474 | v4l2_err(&sdev->sd, "Invalid product number\n"); | |
475 | rval = -EINVAL; | |
476 | } | |
477 | ||
478 | unlock: | |
479 | mutex_unlock(&sdev->mutex); | |
480 | return rval; | |
481 | } | |
482 | ||
483 | /* | |
25985edc | 484 | * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful |
02bee89e EV |
485 | * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS |
486 | * @sdev: si4713_device structure for the device we are communicating | |
487 | * @usecs: timeout to wait for STC interrupt signal | |
488 | */ | |
489 | static int si4713_wait_stc(struct si4713_device *sdev, const int usecs) | |
490 | { | |
491 | int err; | |
492 | u8 resp[SI4713_GET_STATUS_NRESP]; | |
493 | ||
494 | /* Wait response from STC interrupt */ | |
495 | if (!wait_for_completion_timeout(&sdev->work, | |
496 | usecs_to_jiffies(usecs) + 1)) | |
497 | v4l2_warn(&sdev->sd, | |
498 | "%s: device took too much time to answer (%d usec).\n", | |
499 | __func__, usecs); | |
500 | ||
501 | /* Clear status bits */ | |
502 | err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS, | |
503 | NULL, 0, | |
504 | resp, ARRAY_SIZE(resp), | |
505 | DEFAULT_TIMEOUT); | |
506 | ||
507 | if (err < 0) | |
508 | goto exit; | |
509 | ||
510 | v4l2_dbg(1, debug, &sdev->sd, | |
511 | "%s: status bits: 0x%02x\n", __func__, resp[0]); | |
512 | ||
513 | if (!(resp[0] & SI4713_STC_INT)) | |
514 | err = -EIO; | |
515 | ||
516 | exit: | |
517 | return err; | |
518 | } | |
519 | ||
520 | /* | |
521 | * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning | |
522 | * frequency between 76 and 108 MHz in 10 kHz units and | |
523 | * steps of 50 kHz. | |
524 | * @sdev: si4713_device structure for the device we are communicating | |
525 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
526 | */ | |
527 | static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency) | |
528 | { | |
529 | int err; | |
530 | u8 val[SI4713_TXFREQ_NRESP]; | |
531 | /* | |
532 | * .First byte = 0 | |
533 | * .Second byte = frequency's MSB | |
534 | * .Third byte = frequency's LSB | |
535 | */ | |
536 | const u8 args[SI4713_TXFREQ_NARGS] = { | |
537 | 0x00, | |
538 | msb(frequency), | |
539 | lsb(frequency), | |
540 | }; | |
541 | ||
542 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ, | |
543 | args, ARRAY_SIZE(args), val, | |
544 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
545 | ||
546 | if (err < 0) | |
547 | return err; | |
548 | ||
549 | v4l2_dbg(1, debug, &sdev->sd, | |
550 | "%s: frequency=0x%02x status=0x%02x\n", __func__, | |
551 | frequency, val[0]); | |
552 | ||
553 | err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
554 | if (err < 0) | |
555 | return err; | |
556 | ||
557 | return compose_u16(args[1], args[2]); | |
558 | } | |
559 | ||
560 | /* | |
561 | * si4713_tx_tune_power - Sets the RF voltage level between 88 and 115 dBuV in | |
562 | * 1 dB units. A value of 0x00 indicates off. The command | |
563 | * also sets the antenna tuning capacitance. A value of 0 | |
564 | * indicates autotuning, and a value of 1 - 191 indicates | |
565 | * a manual override, which results in a tuning | |
566 | * capacitance of 0.25 pF x @antcap. | |
567 | * @sdev: si4713_device structure for the device we are communicating | |
568 | * @power: tuning power (88 - 115 dBuV, unit/step 1 dB) | |
569 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
570 | */ | |
571 | static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power, | |
572 | u8 antcap) | |
573 | { | |
574 | int err; | |
575 | u8 val[SI4713_TXPWR_NRESP]; | |
576 | /* | |
577 | * .First byte = 0 | |
578 | * .Second byte = 0 | |
579 | * .Third byte = power | |
580 | * .Fourth byte = antcap | |
581 | */ | |
582 | const u8 args[SI4713_TXPWR_NARGS] = { | |
583 | 0x00, | |
584 | 0x00, | |
585 | power, | |
586 | antcap, | |
587 | }; | |
588 | ||
589 | if (((power > 0) && (power < SI4713_MIN_POWER)) || | |
590 | power > SI4713_MAX_POWER || antcap > SI4713_MAX_ANTCAP) | |
591 | return -EDOM; | |
592 | ||
593 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER, | |
594 | args, ARRAY_SIZE(args), val, | |
595 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
596 | ||
597 | if (err < 0) | |
598 | return err; | |
599 | ||
600 | v4l2_dbg(1, debug, &sdev->sd, | |
601 | "%s: power=0x%02x antcap=0x%02x status=0x%02x\n", | |
602 | __func__, power, antcap, val[0]); | |
603 | ||
604 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER); | |
605 | } | |
606 | ||
607 | /* | |
608 | * si4713_tx_tune_measure - Enters receive mode and measures the received noise | |
609 | * level in units of dBuV on the selected frequency. | |
610 | * The Frequency must be between 76 and 108 MHz in 10 kHz | |
611 | * units and steps of 50 kHz. The command also sets the | |
612 | * antenna tuning capacitance. A value of 0 means | |
613 | * autotuning, and a value of 1 to 191 indicates manual | |
614 | * override. | |
615 | * @sdev: si4713_device structure for the device we are communicating | |
616 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
617 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
618 | */ | |
619 | static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency, | |
620 | u8 antcap) | |
621 | { | |
622 | int err; | |
623 | u8 val[SI4713_TXMEA_NRESP]; | |
624 | /* | |
625 | * .First byte = 0 | |
626 | * .Second byte = frequency's MSB | |
627 | * .Third byte = frequency's LSB | |
628 | * .Fourth byte = antcap | |
629 | */ | |
630 | const u8 args[SI4713_TXMEA_NARGS] = { | |
631 | 0x00, | |
632 | msb(frequency), | |
633 | lsb(frequency), | |
634 | antcap, | |
635 | }; | |
636 | ||
637 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
638 | ||
639 | if (antcap > SI4713_MAX_ANTCAP) | |
640 | return -EDOM; | |
641 | ||
642 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE, | |
643 | args, ARRAY_SIZE(args), val, | |
644 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
645 | ||
646 | if (err < 0) | |
647 | return err; | |
648 | ||
649 | v4l2_dbg(1, debug, &sdev->sd, | |
650 | "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n", | |
651 | __func__, frequency, antcap, val[0]); | |
652 | ||
653 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
654 | } | |
655 | ||
656 | /* | |
657 | * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or | |
658 | * tx_tune_power commands. This command return the current | |
659 | * frequency, output voltage in dBuV, the antenna tunning | |
660 | * capacitance value and the received noise level. The | |
661 | * command also clears the stcint interrupt bit when the | |
662 | * first bit of its arguments is high. | |
663 | * @sdev: si4713_device structure for the device we are communicating | |
664 | * @intack: 0x01 to clear the seek/tune complete interrupt status indicator. | |
665 | * @frequency: returned frequency | |
666 | * @power: returned power | |
667 | * @antcap: returned antenna capacitance | |
668 | * @noise: returned noise level | |
669 | */ | |
670 | static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack, | |
671 | u16 *frequency, u8 *power, | |
672 | u8 *antcap, u8 *noise) | |
673 | { | |
674 | int err; | |
675 | u8 val[SI4713_TXSTATUS_NRESP]; | |
676 | /* | |
677 | * .First byte = intack bit | |
678 | */ | |
679 | const u8 args[SI4713_TXSTATUS_NARGS] = { | |
680 | intack & SI4713_INTACK_MASK, | |
681 | }; | |
682 | ||
683 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS, | |
684 | args, ARRAY_SIZE(args), val, | |
685 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
686 | ||
687 | if (!err) { | |
688 | v4l2_dbg(1, debug, &sdev->sd, | |
689 | "%s: status=0x%02x\n", __func__, val[0]); | |
690 | *frequency = compose_u16(val[2], val[3]); | |
691 | sdev->frequency = *frequency; | |
692 | *power = val[5]; | |
693 | *antcap = val[6]; | |
694 | *noise = val[7]; | |
695 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz " | |
696 | "(power %d, antcap %d, rnl %d)\n", __func__, | |
697 | *frequency, *power, *antcap, *noise); | |
698 | } | |
699 | ||
700 | return err; | |
701 | } | |
702 | ||
703 | /* | |
704 | * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer. | |
705 | * @sdev: si4713_device structure for the device we are communicating | |
706 | * @mode: the buffer operation mode. | |
707 | * @rdsb: RDS Block B | |
708 | * @rdsc: RDS Block C | |
709 | * @rdsd: RDS Block D | |
710 | * @cbleft: returns the number of available circular buffer blocks minus the | |
711 | * number of used circular buffer blocks. | |
712 | */ | |
713 | static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb, | |
714 | u16 rdsc, u16 rdsd, s8 *cbleft) | |
715 | { | |
716 | int err; | |
717 | u8 val[SI4713_RDSBUFF_NRESP]; | |
718 | ||
719 | const u8 args[SI4713_RDSBUFF_NARGS] = { | |
720 | mode & SI4713_RDSBUFF_MODE_MASK, | |
721 | msb(rdsb), | |
722 | lsb(rdsb), | |
723 | msb(rdsc), | |
724 | lsb(rdsc), | |
725 | msb(rdsd), | |
726 | lsb(rdsd), | |
727 | }; | |
728 | ||
729 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF, | |
730 | args, ARRAY_SIZE(args), val, | |
731 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
732 | ||
733 | if (!err) { | |
734 | v4l2_dbg(1, debug, &sdev->sd, | |
735 | "%s: status=0x%02x\n", __func__, val[0]); | |
736 | *cbleft = (s8)val[2] - val[3]; | |
737 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts" | |
738 | " 0x%02x cb avail: %d cb used %d fifo avail" | |
739 | " %d fifo used %d\n", __func__, val[1], | |
740 | val[2], val[3], val[4], val[5]); | |
741 | } | |
742 | ||
743 | return err; | |
744 | } | |
745 | ||
746 | /* | |
747 | * si4713_tx_rds_ps - Loads the program service buffer. | |
748 | * @sdev: si4713_device structure for the device we are communicating | |
749 | * @psid: program service id to be loaded. | |
750 | * @pschar: assumed 4 size char array to be loaded into the program service | |
751 | */ | |
752 | static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid, | |
753 | unsigned char *pschar) | |
754 | { | |
755 | int err; | |
756 | u8 val[SI4713_RDSPS_NRESP]; | |
757 | ||
758 | const u8 args[SI4713_RDSPS_NARGS] = { | |
759 | psid & SI4713_RDSPS_PSID_MASK, | |
760 | pschar[0], | |
761 | pschar[1], | |
762 | pschar[2], | |
763 | pschar[3], | |
764 | }; | |
765 | ||
766 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS, | |
767 | args, ARRAY_SIZE(args), val, | |
768 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
769 | ||
770 | if (err < 0) | |
771 | return err; | |
772 | ||
773 | v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]); | |
774 | ||
775 | return err; | |
776 | } | |
777 | ||
778 | static int si4713_set_power_state(struct si4713_device *sdev, u8 value) | |
779 | { | |
780 | int rval; | |
781 | ||
782 | mutex_lock(&sdev->mutex); | |
783 | ||
784 | if (value) | |
785 | rval = si4713_powerup(sdev); | |
786 | else | |
787 | rval = si4713_powerdown(sdev); | |
788 | ||
789 | mutex_unlock(&sdev->mutex); | |
790 | return rval; | |
791 | } | |
792 | ||
793 | static int si4713_set_mute(struct si4713_device *sdev, u16 mute) | |
794 | { | |
795 | int rval = 0; | |
796 | ||
797 | mute = set_mute(mute); | |
798 | ||
799 | mutex_lock(&sdev->mutex); | |
800 | ||
801 | if (sdev->power_state) | |
802 | rval = si4713_write_property(sdev, | |
803 | SI4713_TX_LINE_INPUT_MUTE, mute); | |
804 | ||
805 | if (rval >= 0) | |
806 | sdev->mute = get_mute(mute); | |
807 | ||
808 | mutex_unlock(&sdev->mutex); | |
809 | ||
810 | return rval; | |
811 | } | |
812 | ||
813 | static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) | |
814 | { | |
815 | int rval = 0, i; | |
816 | u8 len = 0; | |
817 | ||
818 | /* We want to clear the whole thing */ | |
819 | if (!strlen(ps_name)) | |
820 | memset(ps_name, 0, MAX_RDS_PS_NAME + 1); | |
821 | ||
822 | mutex_lock(&sdev->mutex); | |
823 | ||
824 | if (sdev->power_state) { | |
825 | /* Write the new ps name and clear the padding */ | |
826 | for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) { | |
827 | rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)), | |
828 | ps_name + i); | |
829 | if (rval < 0) | |
830 | goto unlock; | |
831 | } | |
832 | ||
833 | /* Setup the size to be sent */ | |
834 | if (strlen(ps_name)) | |
835 | len = strlen(ps_name) - 1; | |
836 | else | |
837 | len = 1; | |
838 | ||
839 | rval = si4713_write_property(sdev, | |
840 | SI4713_TX_RDS_PS_MESSAGE_COUNT, | |
841 | rds_ps_nblocks(len)); | |
842 | if (rval < 0) | |
843 | goto unlock; | |
844 | ||
845 | rval = si4713_write_property(sdev, | |
846 | SI4713_TX_RDS_PS_REPEAT_COUNT, | |
847 | DEFAULT_RDS_PS_REPEAT_COUNT * 2); | |
848 | if (rval < 0) | |
849 | goto unlock; | |
850 | } | |
851 | ||
852 | strncpy(sdev->rds_info.ps_name, ps_name, MAX_RDS_PS_NAME); | |
853 | ||
854 | unlock: | |
855 | mutex_unlock(&sdev->mutex); | |
856 | return rval; | |
857 | } | |
858 | ||
859 | static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt) | |
860 | { | |
861 | int rval = 0, i; | |
862 | u16 t_index = 0; | |
863 | u8 b_index = 0, cr_inserted = 0; | |
864 | s8 left; | |
865 | ||
866 | mutex_lock(&sdev->mutex); | |
867 | ||
868 | if (!sdev->power_state) | |
869 | goto copy; | |
870 | ||
871 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); | |
872 | if (rval < 0) | |
873 | goto unlock; | |
874 | ||
875 | if (!strlen(rt)) | |
876 | goto copy; | |
877 | ||
878 | do { | |
879 | /* RDS spec says that if the last block isn't used, | |
880 | * then apply a carriage return | |
881 | */ | |
882 | if (t_index < (RDS_RADIOTEXT_INDEX_MAX * | |
883 | RDS_RADIOTEXT_BLK_SIZE)) { | |
884 | for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { | |
885 | if (!rt[t_index + i] || rt[t_index + i] == | |
886 | RDS_CARRIAGE_RETURN) { | |
887 | rt[t_index + i] = RDS_CARRIAGE_RETURN; | |
888 | cr_inserted = 1; | |
889 | break; | |
890 | } | |
891 | } | |
892 | } | |
893 | ||
894 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD, | |
895 | compose_u16(RDS_RADIOTEXT_2A, b_index++), | |
896 | compose_u16(rt[t_index], rt[t_index + 1]), | |
897 | compose_u16(rt[t_index + 2], rt[t_index + 3]), | |
898 | &left); | |
899 | if (rval < 0) | |
900 | goto unlock; | |
901 | ||
902 | t_index += RDS_RADIOTEXT_BLK_SIZE; | |
903 | ||
904 | if (cr_inserted) | |
905 | break; | |
906 | } while (left > 0); | |
907 | ||
908 | copy: | |
909 | strncpy(sdev->rds_info.radio_text, rt, MAX_RDS_RADIO_TEXT); | |
910 | ||
911 | unlock: | |
912 | mutex_unlock(&sdev->mutex); | |
913 | return rval; | |
914 | } | |
915 | ||
916 | static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, | |
917 | u32 **shadow, s32 *bit, s32 *mask, u16 *property, int *mul, | |
918 | unsigned long **table, int *size) | |
919 | { | |
920 | s32 rval = 0; | |
921 | ||
922 | switch (id) { | |
923 | /* FM_TX class controls */ | |
924 | case V4L2_CID_RDS_TX_PI: | |
925 | *property = SI4713_TX_RDS_PI; | |
926 | *mul = 1; | |
927 | *shadow = &sdev->rds_info.pi; | |
928 | break; | |
929 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: | |
930 | *property = SI4713_TX_ACOMP_THRESHOLD; | |
931 | *mul = 1; | |
932 | *shadow = &sdev->acomp_info.threshold; | |
933 | break; | |
934 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: | |
935 | *property = SI4713_TX_ACOMP_GAIN; | |
936 | *mul = 1; | |
937 | *shadow = &sdev->acomp_info.gain; | |
938 | break; | |
939 | case V4L2_CID_PILOT_TONE_FREQUENCY: | |
940 | *property = SI4713_TX_PILOT_FREQUENCY; | |
941 | *mul = 1; | |
942 | *shadow = &sdev->pilot_info.frequency; | |
943 | break; | |
944 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: | |
945 | *property = SI4713_TX_ACOMP_ATTACK_TIME; | |
946 | *mul = ATTACK_TIME_UNIT; | |
947 | *shadow = &sdev->acomp_info.attack_time; | |
948 | break; | |
949 | case V4L2_CID_PILOT_TONE_DEVIATION: | |
950 | *property = SI4713_TX_PILOT_DEVIATION; | |
951 | *mul = 10; | |
952 | *shadow = &sdev->pilot_info.deviation; | |
953 | break; | |
954 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: | |
955 | *property = SI4713_TX_AUDIO_DEVIATION; | |
956 | *mul = 10; | |
957 | *shadow = &sdev->limiter_info.deviation; | |
958 | break; | |
959 | case V4L2_CID_RDS_TX_DEVIATION: | |
960 | *property = SI4713_TX_RDS_DEVIATION; | |
961 | *mul = 1; | |
962 | *shadow = &sdev->rds_info.deviation; | |
963 | break; | |
964 | ||
965 | case V4L2_CID_RDS_TX_PTY: | |
966 | *property = SI4713_TX_RDS_PS_MISC; | |
967 | *bit = 5; | |
968 | *mask = 0x1F << 5; | |
969 | *shadow = &sdev->rds_info.pty; | |
970 | break; | |
971 | case V4L2_CID_AUDIO_LIMITER_ENABLED: | |
972 | *property = SI4713_TX_ACOMP_ENABLE; | |
973 | *bit = 1; | |
974 | *mask = 1 << 1; | |
975 | *shadow = &sdev->limiter_info.enabled; | |
976 | break; | |
977 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: | |
978 | *property = SI4713_TX_ACOMP_ENABLE; | |
979 | *bit = 0; | |
980 | *mask = 1 << 0; | |
981 | *shadow = &sdev->acomp_info.enabled; | |
982 | break; | |
983 | case V4L2_CID_PILOT_TONE_ENABLED: | |
984 | *property = SI4713_TX_COMPONENT_ENABLE; | |
985 | *bit = 0; | |
986 | *mask = 1 << 0; | |
987 | *shadow = &sdev->pilot_info.enabled; | |
988 | break; | |
989 | ||
990 | case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: | |
991 | *property = SI4713_TX_LIMITER_RELEASE_TIME; | |
992 | *table = limiter_times; | |
993 | *size = ARRAY_SIZE(limiter_times); | |
994 | *shadow = &sdev->limiter_info.release_time; | |
995 | break; | |
996 | case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: | |
997 | *property = SI4713_TX_ACOMP_RELEASE_TIME; | |
998 | *table = acomp_rtimes; | |
999 | *size = ARRAY_SIZE(acomp_rtimes); | |
1000 | *shadow = &sdev->acomp_info.release_time; | |
1001 | break; | |
1002 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1003 | *property = SI4713_TX_PREEMPHASIS; | |
1004 | *table = preemphasis_values; | |
1005 | *size = ARRAY_SIZE(preemphasis_values); | |
1006 | *shadow = &sdev->preemphasis; | |
1007 | break; | |
1008 | ||
1009 | default: | |
1010 | rval = -EINVAL; | |
1011 | }; | |
1012 | ||
1013 | return rval; | |
1014 | } | |
1015 | ||
1016 | static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc); | |
1017 | ||
1018 | /* write string property */ | |
1019 | static int si4713_write_econtrol_string(struct si4713_device *sdev, | |
1020 | struct v4l2_ext_control *control) | |
1021 | { | |
1022 | struct v4l2_queryctrl vqc; | |
1023 | int len; | |
1024 | s32 rval = 0; | |
1025 | ||
1026 | vqc.id = control->id; | |
1027 | rval = si4713_queryctrl(&sdev->sd, &vqc); | |
1028 | if (rval < 0) | |
1029 | goto exit; | |
1030 | ||
1031 | switch (control->id) { | |
1032 | case V4L2_CID_RDS_TX_PS_NAME: { | |
1033 | char ps_name[MAX_RDS_PS_NAME + 1]; | |
1034 | ||
1035 | len = control->size - 1; | |
1036 | if (len > MAX_RDS_PS_NAME) { | |
1037 | rval = -ERANGE; | |
1038 | goto exit; | |
1039 | } | |
1040 | rval = copy_from_user(ps_name, control->string, len); | |
aac870a8 DC |
1041 | if (rval) { |
1042 | rval = -EFAULT; | |
02bee89e | 1043 | goto exit; |
aac870a8 | 1044 | } |
02bee89e EV |
1045 | ps_name[len] = '\0'; |
1046 | ||
1047 | if (strlen(ps_name) % vqc.step) { | |
1048 | rval = -ERANGE; | |
1049 | goto exit; | |
1050 | } | |
1051 | ||
1052 | rval = si4713_set_rds_ps_name(sdev, ps_name); | |
1053 | } | |
1054 | break; | |
1055 | ||
1056 | case V4L2_CID_RDS_TX_RADIO_TEXT: { | |
1057 | char radio_text[MAX_RDS_RADIO_TEXT + 1]; | |
1058 | ||
1059 | len = control->size - 1; | |
1060 | if (len > MAX_RDS_RADIO_TEXT) { | |
1061 | rval = -ERANGE; | |
1062 | goto exit; | |
1063 | } | |
1064 | rval = copy_from_user(radio_text, control->string, len); | |
aac870a8 DC |
1065 | if (rval) { |
1066 | rval = -EFAULT; | |
02bee89e | 1067 | goto exit; |
aac870a8 | 1068 | } |
02bee89e EV |
1069 | radio_text[len] = '\0'; |
1070 | ||
1071 | if (strlen(radio_text) % vqc.step) { | |
1072 | rval = -ERANGE; | |
1073 | goto exit; | |
1074 | } | |
1075 | ||
1076 | rval = si4713_set_rds_radio_text(sdev, radio_text); | |
1077 | } | |
1078 | break; | |
1079 | ||
1080 | default: | |
1081 | rval = -EINVAL; | |
1082 | break; | |
1083 | }; | |
1084 | ||
1085 | exit: | |
1086 | return rval; | |
1087 | } | |
1088 | ||
1089 | static int validate_range(struct v4l2_subdev *sd, | |
1090 | struct v4l2_ext_control *control) | |
1091 | { | |
1092 | struct v4l2_queryctrl vqc; | |
1093 | int rval; | |
1094 | ||
1095 | vqc.id = control->id; | |
1096 | rval = si4713_queryctrl(sd, &vqc); | |
1097 | if (rval < 0) | |
1098 | goto exit; | |
1099 | ||
1100 | if (control->value < vqc.minimum || control->value > vqc.maximum) | |
1101 | rval = -ERANGE; | |
1102 | ||
1103 | exit: | |
1104 | return rval; | |
1105 | } | |
1106 | ||
1107 | /* properties which use tx_tune_power*/ | |
1108 | static int si4713_write_econtrol_tune(struct si4713_device *sdev, | |
1109 | struct v4l2_ext_control *control) | |
1110 | { | |
1111 | s32 rval = 0; | |
1112 | u8 power, antcap; | |
1113 | ||
1114 | rval = validate_range(&sdev->sd, control); | |
1115 | if (rval < 0) | |
1116 | goto exit; | |
1117 | ||
1118 | mutex_lock(&sdev->mutex); | |
1119 | ||
1120 | switch (control->id) { | |
1121 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1122 | power = control->value; | |
1123 | antcap = sdev->antenna_capacitor; | |
1124 | break; | |
1125 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1126 | power = sdev->power_level; | |
1127 | antcap = control->value; | |
1128 | break; | |
1129 | default: | |
1130 | rval = -EINVAL; | |
1131 | goto unlock; | |
1132 | }; | |
1133 | ||
1134 | if (sdev->power_state) | |
1135 | rval = si4713_tx_tune_power(sdev, power, antcap); | |
1136 | ||
1137 | if (rval == 0) { | |
1138 | sdev->power_level = power; | |
1139 | sdev->antenna_capacitor = antcap; | |
1140 | } | |
1141 | ||
1142 | unlock: | |
1143 | mutex_unlock(&sdev->mutex); | |
1144 | exit: | |
1145 | return rval; | |
1146 | } | |
1147 | ||
1148 | static int si4713_write_econtrol_integers(struct si4713_device *sdev, | |
1149 | struct v4l2_ext_control *control) | |
1150 | { | |
1151 | s32 rval; | |
1152 | u32 *shadow = NULL, val = 0; | |
1153 | s32 bit = 0, mask = 0; | |
1154 | u16 property = 0; | |
1155 | int mul = 0; | |
1156 | unsigned long *table = NULL; | |
1157 | int size = 0; | |
1158 | ||
1159 | rval = validate_range(&sdev->sd, control); | |
1160 | if (rval < 0) | |
1161 | goto exit; | |
1162 | ||
1163 | rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit, | |
1164 | &mask, &property, &mul, &table, &size); | |
1165 | if (rval < 0) | |
1166 | goto exit; | |
1167 | ||
1168 | val = control->value; | |
1169 | if (mul) { | |
1170 | val = control->value / mul; | |
1171 | } else if (table) { | |
1172 | rval = usecs_to_dev(control->value, table, size); | |
1173 | if (rval < 0) | |
1174 | goto exit; | |
1175 | val = rval; | |
1176 | rval = 0; | |
1177 | } | |
1178 | ||
1179 | mutex_lock(&sdev->mutex); | |
1180 | ||
1181 | if (sdev->power_state) { | |
1182 | if (mask) { | |
1183 | rval = si4713_read_property(sdev, property, &val); | |
1184 | if (rval < 0) | |
1185 | goto unlock; | |
1186 | val = set_bits(val, control->value, bit, mask); | |
1187 | } | |
1188 | ||
1189 | rval = si4713_write_property(sdev, property, val); | |
1190 | if (rval < 0) | |
1191 | goto unlock; | |
1192 | if (mask) | |
1193 | val = control->value; | |
1194 | } | |
1195 | ||
1196 | if (mul) { | |
1197 | *shadow = val * mul; | |
1198 | } else if (table) { | |
1199 | rval = dev_to_usecs(val, table, size); | |
1200 | if (rval < 0) | |
1201 | goto unlock; | |
1202 | *shadow = rval; | |
1203 | rval = 0; | |
1204 | } else { | |
1205 | *shadow = val; | |
1206 | } | |
1207 | ||
1208 | unlock: | |
1209 | mutex_unlock(&sdev->mutex); | |
1210 | exit: | |
1211 | return rval; | |
1212 | } | |
1213 | ||
1214 | static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f); | |
1215 | static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *); | |
1216 | /* | |
1217 | * si4713_setup - Sets the device up with current configuration. | |
1218 | * @sdev: si4713_device structure for the device we are communicating | |
1219 | */ | |
1220 | static int si4713_setup(struct si4713_device *sdev) | |
1221 | { | |
1222 | struct v4l2_ext_control ctrl; | |
1223 | struct v4l2_frequency f; | |
1224 | struct v4l2_modulator vm; | |
1225 | struct si4713_device *tmp; | |
1226 | int rval = 0; | |
1227 | ||
1228 | tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); | |
1229 | if (!tmp) | |
1230 | return -ENOMEM; | |
1231 | ||
1232 | /* Get a local copy to avoid race */ | |
1233 | mutex_lock(&sdev->mutex); | |
1234 | memcpy(tmp, sdev, sizeof(*sdev)); | |
1235 | mutex_unlock(&sdev->mutex); | |
1236 | ||
1237 | ctrl.id = V4L2_CID_RDS_TX_PI; | |
1238 | ctrl.value = tmp->rds_info.pi; | |
1239 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1240 | ||
1241 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_THRESHOLD; | |
1242 | ctrl.value = tmp->acomp_info.threshold; | |
1243 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1244 | ||
1245 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_GAIN; | |
1246 | ctrl.value = tmp->acomp_info.gain; | |
1247 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1248 | ||
1249 | ctrl.id = V4L2_CID_PILOT_TONE_FREQUENCY; | |
1250 | ctrl.value = tmp->pilot_info.frequency; | |
1251 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1252 | ||
1253 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME; | |
1254 | ctrl.value = tmp->acomp_info.attack_time; | |
1255 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1256 | ||
1257 | ctrl.id = V4L2_CID_PILOT_TONE_DEVIATION; | |
1258 | ctrl.value = tmp->pilot_info.deviation; | |
1259 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1260 | ||
1261 | ctrl.id = V4L2_CID_AUDIO_LIMITER_DEVIATION; | |
1262 | ctrl.value = tmp->limiter_info.deviation; | |
1263 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1264 | ||
1265 | ctrl.id = V4L2_CID_RDS_TX_DEVIATION; | |
1266 | ctrl.value = tmp->rds_info.deviation; | |
1267 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1268 | ||
1269 | ctrl.id = V4L2_CID_RDS_TX_PTY; | |
1270 | ctrl.value = tmp->rds_info.pty; | |
1271 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1272 | ||
1273 | ctrl.id = V4L2_CID_AUDIO_LIMITER_ENABLED; | |
1274 | ctrl.value = tmp->limiter_info.enabled; | |
1275 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1276 | ||
1277 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ENABLED; | |
1278 | ctrl.value = tmp->acomp_info.enabled; | |
1279 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1280 | ||
1281 | ctrl.id = V4L2_CID_PILOT_TONE_ENABLED; | |
1282 | ctrl.value = tmp->pilot_info.enabled; | |
1283 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1284 | ||
1285 | ctrl.id = V4L2_CID_AUDIO_LIMITER_RELEASE_TIME; | |
1286 | ctrl.value = tmp->limiter_info.release_time; | |
1287 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1288 | ||
1289 | ctrl.id = V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME; | |
1290 | ctrl.value = tmp->acomp_info.release_time; | |
1291 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1292 | ||
1293 | ctrl.id = V4L2_CID_TUNE_PREEMPHASIS; | |
1294 | ctrl.value = tmp->preemphasis; | |
1295 | rval |= si4713_write_econtrol_integers(sdev, &ctrl); | |
1296 | ||
1297 | ctrl.id = V4L2_CID_RDS_TX_PS_NAME; | |
1298 | rval |= si4713_set_rds_ps_name(sdev, tmp->rds_info.ps_name); | |
1299 | ||
1300 | ctrl.id = V4L2_CID_RDS_TX_RADIO_TEXT; | |
1301 | rval |= si4713_set_rds_radio_text(sdev, tmp->rds_info.radio_text); | |
1302 | ||
1303 | /* Device procedure needs to set frequency first */ | |
1304 | f.frequency = tmp->frequency ? tmp->frequency : DEFAULT_FREQUENCY; | |
1305 | f.frequency = si4713_to_v4l2(f.frequency); | |
1306 | rval |= si4713_s_frequency(&sdev->sd, &f); | |
1307 | ||
1308 | ctrl.id = V4L2_CID_TUNE_POWER_LEVEL; | |
1309 | ctrl.value = tmp->power_level; | |
1310 | rval |= si4713_write_econtrol_tune(sdev, &ctrl); | |
1311 | ||
1312 | ctrl.id = V4L2_CID_TUNE_ANTENNA_CAPACITOR; | |
1313 | ctrl.value = tmp->antenna_capacitor; | |
1314 | rval |= si4713_write_econtrol_tune(sdev, &ctrl); | |
1315 | ||
1316 | vm.index = 0; | |
1317 | if (tmp->stereo) | |
1318 | vm.txsubchans = V4L2_TUNER_SUB_STEREO; | |
1319 | else | |
1320 | vm.txsubchans = V4L2_TUNER_SUB_MONO; | |
1321 | if (tmp->rds_info.enabled) | |
1322 | vm.txsubchans |= V4L2_TUNER_SUB_RDS; | |
1323 | si4713_s_modulator(&sdev->sd, &vm); | |
1324 | ||
1325 | kfree(tmp); | |
1326 | ||
1327 | return rval; | |
1328 | } | |
1329 | ||
1330 | /* | |
1331 | * si4713_initialize - Sets the device up with default configuration. | |
1332 | * @sdev: si4713_device structure for the device we are communicating | |
1333 | */ | |
1334 | static int si4713_initialize(struct si4713_device *sdev) | |
1335 | { | |
1336 | int rval; | |
1337 | ||
1338 | rval = si4713_set_power_state(sdev, POWER_ON); | |
1339 | if (rval < 0) | |
1340 | goto exit; | |
1341 | ||
1342 | rval = si4713_checkrev(sdev); | |
1343 | if (rval < 0) | |
1344 | goto exit; | |
1345 | ||
1346 | rval = si4713_set_power_state(sdev, POWER_OFF); | |
1347 | if (rval < 0) | |
1348 | goto exit; | |
1349 | ||
1350 | mutex_lock(&sdev->mutex); | |
1351 | ||
1352 | sdev->rds_info.pi = DEFAULT_RDS_PI; | |
1353 | sdev->rds_info.pty = DEFAULT_RDS_PTY; | |
1354 | sdev->rds_info.deviation = DEFAULT_RDS_DEVIATION; | |
1355 | strlcpy(sdev->rds_info.ps_name, DEFAULT_RDS_PS_NAME, MAX_RDS_PS_NAME); | |
1356 | strlcpy(sdev->rds_info.radio_text, DEFAULT_RDS_RADIO_TEXT, | |
1357 | MAX_RDS_RADIO_TEXT); | |
1358 | sdev->rds_info.enabled = 1; | |
1359 | ||
1360 | sdev->limiter_info.release_time = DEFAULT_LIMITER_RTIME; | |
1361 | sdev->limiter_info.deviation = DEFAULT_LIMITER_DEV; | |
1362 | sdev->limiter_info.enabled = 1; | |
1363 | ||
1364 | sdev->pilot_info.deviation = DEFAULT_PILOT_DEVIATION; | |
1365 | sdev->pilot_info.frequency = DEFAULT_PILOT_FREQUENCY; | |
1366 | sdev->pilot_info.enabled = 1; | |
1367 | ||
1368 | sdev->acomp_info.release_time = DEFAULT_ACOMP_RTIME; | |
1369 | sdev->acomp_info.attack_time = DEFAULT_ACOMP_ATIME; | |
1370 | sdev->acomp_info.threshold = DEFAULT_ACOMP_THRESHOLD; | |
1371 | sdev->acomp_info.gain = DEFAULT_ACOMP_GAIN; | |
1372 | sdev->acomp_info.enabled = 1; | |
1373 | ||
1374 | sdev->frequency = DEFAULT_FREQUENCY; | |
1375 | sdev->preemphasis = DEFAULT_PREEMPHASIS; | |
1376 | sdev->mute = DEFAULT_MUTE; | |
1377 | sdev->power_level = DEFAULT_POWER_LEVEL; | |
1378 | sdev->antenna_capacitor = 0; | |
1379 | sdev->stereo = 1; | |
1380 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
1381 | ||
1382 | mutex_unlock(&sdev->mutex); | |
1383 | ||
1384 | exit: | |
1385 | return rval; | |
1386 | } | |
1387 | ||
1388 | /* read string property */ | |
1389 | static int si4713_read_econtrol_string(struct si4713_device *sdev, | |
1390 | struct v4l2_ext_control *control) | |
1391 | { | |
1392 | s32 rval = 0; | |
1393 | ||
1394 | switch (control->id) { | |
1395 | case V4L2_CID_RDS_TX_PS_NAME: | |
1396 | if (strlen(sdev->rds_info.ps_name) + 1 > control->size) { | |
1397 | control->size = MAX_RDS_PS_NAME + 1; | |
1398 | rval = -ENOSPC; | |
1399 | goto exit; | |
1400 | } | |
1401 | rval = copy_to_user(control->string, sdev->rds_info.ps_name, | |
1402 | strlen(sdev->rds_info.ps_name) + 1); | |
aac870a8 DC |
1403 | if (rval) |
1404 | rval = -EFAULT; | |
02bee89e EV |
1405 | break; |
1406 | ||
1407 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1408 | if (strlen(sdev->rds_info.radio_text) + 1 > control->size) { | |
1409 | control->size = MAX_RDS_RADIO_TEXT + 1; | |
1410 | rval = -ENOSPC; | |
1411 | goto exit; | |
1412 | } | |
1413 | rval = copy_to_user(control->string, sdev->rds_info.radio_text, | |
1414 | strlen(sdev->rds_info.radio_text) + 1); | |
aac870a8 DC |
1415 | if (rval) |
1416 | rval = -EFAULT; | |
02bee89e EV |
1417 | break; |
1418 | ||
1419 | default: | |
1420 | rval = -EINVAL; | |
1421 | break; | |
1422 | }; | |
1423 | ||
1424 | exit: | |
1425 | return rval; | |
1426 | } | |
1427 | ||
1428 | /* | |
1429 | * si4713_update_tune_status - update properties from tx_tune_status | |
1430 | * command. Must be called with sdev->mutex held. | |
1431 | * @sdev: si4713_device structure for the device we are communicating | |
1432 | */ | |
1433 | static int si4713_update_tune_status(struct si4713_device *sdev) | |
1434 | { | |
1435 | int rval; | |
1436 | u16 f = 0; | |
1437 | u8 p = 0, a = 0, n = 0; | |
1438 | ||
1439 | rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n); | |
1440 | ||
1441 | if (rval < 0) | |
1442 | goto exit; | |
1443 | ||
1444 | sdev->power_level = p; | |
1445 | sdev->antenna_capacitor = a; | |
1446 | sdev->tune_rnl = n; | |
1447 | ||
1448 | exit: | |
1449 | return rval; | |
1450 | } | |
1451 | ||
1452 | /* properties which use tx_tune_status */ | |
1453 | static int si4713_read_econtrol_tune(struct si4713_device *sdev, | |
1454 | struct v4l2_ext_control *control) | |
1455 | { | |
1456 | s32 rval = 0; | |
1457 | ||
1458 | mutex_lock(&sdev->mutex); | |
1459 | ||
1460 | if (sdev->power_state) { | |
1461 | rval = si4713_update_tune_status(sdev); | |
1462 | if (rval < 0) | |
1463 | goto unlock; | |
1464 | } | |
1465 | ||
1466 | switch (control->id) { | |
1467 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1468 | control->value = sdev->power_level; | |
1469 | break; | |
1470 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1471 | control->value = sdev->antenna_capacitor; | |
1472 | break; | |
1473 | default: | |
1474 | rval = -EINVAL; | |
1475 | }; | |
1476 | ||
1477 | unlock: | |
1478 | mutex_unlock(&sdev->mutex); | |
1479 | return rval; | |
1480 | } | |
1481 | ||
1482 | static int si4713_read_econtrol_integers(struct si4713_device *sdev, | |
1483 | struct v4l2_ext_control *control) | |
1484 | { | |
1485 | s32 rval; | |
1486 | u32 *shadow = NULL, val = 0; | |
1487 | s32 bit = 0, mask = 0; | |
1488 | u16 property = 0; | |
1489 | int mul = 0; | |
1490 | unsigned long *table = NULL; | |
1491 | int size = 0; | |
1492 | ||
1493 | rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit, | |
1494 | &mask, &property, &mul, &table, &size); | |
1495 | if (rval < 0) | |
1496 | goto exit; | |
1497 | ||
1498 | mutex_lock(&sdev->mutex); | |
1499 | ||
1500 | if (sdev->power_state) { | |
1501 | rval = si4713_read_property(sdev, property, &val); | |
1502 | if (rval < 0) | |
1503 | goto unlock; | |
1504 | ||
1505 | /* Keep negative values for threshold */ | |
1506 | if (control->id == V4L2_CID_AUDIO_COMPRESSION_THRESHOLD) | |
1507 | *shadow = (s16)val; | |
1508 | else if (mask) | |
1509 | *shadow = get_status_bit(val, bit, mask); | |
1510 | else if (mul) | |
1511 | *shadow = val * mul; | |
1512 | else | |
1513 | *shadow = dev_to_usecs(val, table, size); | |
1514 | } | |
1515 | ||
1516 | control->value = *shadow; | |
1517 | ||
1518 | unlock: | |
1519 | mutex_unlock(&sdev->mutex); | |
1520 | exit: | |
1521 | return rval; | |
1522 | } | |
1523 | ||
1524 | /* | |
1525 | * Video4Linux Subdev Interface | |
1526 | */ | |
1527 | /* si4713_s_ext_ctrls - set extended controls value */ | |
1528 | static int si4713_s_ext_ctrls(struct v4l2_subdev *sd, | |
1529 | struct v4l2_ext_controls *ctrls) | |
1530 | { | |
1531 | struct si4713_device *sdev = to_si4713_device(sd); | |
1532 | int i; | |
1533 | ||
1534 | if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX) | |
1535 | return -EINVAL; | |
1536 | ||
1537 | for (i = 0; i < ctrls->count; i++) { | |
1538 | int err; | |
1539 | ||
1540 | switch ((ctrls->controls + i)->id) { | |
1541 | case V4L2_CID_RDS_TX_PS_NAME: | |
1542 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1543 | err = si4713_write_econtrol_string(sdev, | |
1544 | ctrls->controls + i); | |
1545 | break; | |
1546 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1547 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1548 | err = si4713_write_econtrol_tune(sdev, | |
1549 | ctrls->controls + i); | |
1550 | break; | |
1551 | default: | |
1552 | err = si4713_write_econtrol_integers(sdev, | |
1553 | ctrls->controls + i); | |
1554 | } | |
1555 | ||
1556 | if (err < 0) { | |
1557 | ctrls->error_idx = i; | |
1558 | return err; | |
1559 | } | |
1560 | } | |
1561 | ||
1562 | return 0; | |
1563 | } | |
1564 | ||
1565 | /* si4713_g_ext_ctrls - get extended controls value */ | |
1566 | static int si4713_g_ext_ctrls(struct v4l2_subdev *sd, | |
1567 | struct v4l2_ext_controls *ctrls) | |
1568 | { | |
1569 | struct si4713_device *sdev = to_si4713_device(sd); | |
1570 | int i; | |
1571 | ||
1572 | if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX) | |
1573 | return -EINVAL; | |
1574 | ||
1575 | for (i = 0; i < ctrls->count; i++) { | |
1576 | int err; | |
1577 | ||
1578 | switch ((ctrls->controls + i)->id) { | |
1579 | case V4L2_CID_RDS_TX_PS_NAME: | |
1580 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1581 | err = si4713_read_econtrol_string(sdev, | |
1582 | ctrls->controls + i); | |
1583 | break; | |
1584 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1585 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1586 | err = si4713_read_econtrol_tune(sdev, | |
1587 | ctrls->controls + i); | |
1588 | break; | |
1589 | default: | |
1590 | err = si4713_read_econtrol_integers(sdev, | |
1591 | ctrls->controls + i); | |
1592 | } | |
1593 | ||
1594 | if (err < 0) { | |
1595 | ctrls->error_idx = i; | |
1596 | return err; | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | return 0; | |
1601 | } | |
1602 | ||
1603 | /* si4713_queryctrl - enumerate control items */ | |
1604 | static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) | |
1605 | { | |
1606 | int rval = 0; | |
1607 | ||
1608 | switch (qc->id) { | |
1609 | /* User class controls */ | |
1610 | case V4L2_CID_AUDIO_MUTE: | |
1611 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, DEFAULT_MUTE); | |
1612 | break; | |
1613 | /* FM_TX class controls */ | |
1614 | case V4L2_CID_RDS_TX_PI: | |
1615 | rval = v4l2_ctrl_query_fill(qc, 0, 0xFFFF, 1, DEFAULT_RDS_PI); | |
1616 | break; | |
1617 | case V4L2_CID_RDS_TX_PTY: | |
1618 | rval = v4l2_ctrl_query_fill(qc, 0, 31, 1, DEFAULT_RDS_PTY); | |
1619 | break; | |
1620 | case V4L2_CID_RDS_TX_DEVIATION: | |
1621 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_DEVIATION, | |
1622 | 10, DEFAULT_RDS_DEVIATION); | |
1623 | break; | |
1624 | case V4L2_CID_RDS_TX_PS_NAME: | |
1625 | /* | |
1626 | * Report step as 8. From RDS spec, psname | |
1627 | * should be 8. But there are receivers which scroll strings | |
1628 | * sized as 8xN. | |
1629 | */ | |
1630 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_PS_NAME, 8, 0); | |
1631 | break; | |
1632 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
1633 | /* | |
1634 | * Report step as 32 (2A block). From RDS spec, | |
1635 | * radio text should be 32 for 2A block. But there are receivers | |
1636 | * which scroll strings sized as 32xN. Setting default to 32. | |
1637 | */ | |
1638 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_RADIO_TEXT, 32, 0); | |
1639 | break; | |
1640 | ||
1641 | case V4L2_CID_AUDIO_LIMITER_ENABLED: | |
1642 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); | |
1643 | break; | |
1644 | case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: | |
1645 | rval = v4l2_ctrl_query_fill(qc, 250, MAX_LIMITER_RELEASE_TIME, | |
1646 | 50, DEFAULT_LIMITER_RTIME); | |
1647 | break; | |
1648 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: | |
1649 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_LIMITER_DEVIATION, | |
1650 | 10, DEFAULT_LIMITER_DEV); | |
1651 | break; | |
1652 | ||
1653 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: | |
1654 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); | |
1655 | break; | |
1656 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: | |
1657 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_GAIN, 1, | |
1658 | DEFAULT_ACOMP_GAIN); | |
1659 | break; | |
1660 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: | |
1661 | rval = v4l2_ctrl_query_fill(qc, MIN_ACOMP_THRESHOLD, | |
1662 | MAX_ACOMP_THRESHOLD, 1, | |
1663 | DEFAULT_ACOMP_THRESHOLD); | |
1664 | break; | |
1665 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: | |
1666 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_ATTACK_TIME, | |
1667 | 500, DEFAULT_ACOMP_ATIME); | |
1668 | break; | |
1669 | case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: | |
1670 | rval = v4l2_ctrl_query_fill(qc, 100000, MAX_ACOMP_RELEASE_TIME, | |
1671 | 100000, DEFAULT_ACOMP_RTIME); | |
1672 | break; | |
1673 | ||
1674 | case V4L2_CID_PILOT_TONE_ENABLED: | |
1675 | rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); | |
1676 | break; | |
1677 | case V4L2_CID_PILOT_TONE_DEVIATION: | |
1678 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_DEVIATION, | |
1679 | 10, DEFAULT_PILOT_DEVIATION); | |
1680 | break; | |
1681 | case V4L2_CID_PILOT_TONE_FREQUENCY: | |
1682 | rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_FREQUENCY, | |
1683 | 1, DEFAULT_PILOT_FREQUENCY); | |
1684 | break; | |
1685 | ||
1686 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1687 | rval = v4l2_ctrl_query_fill(qc, V4L2_PREEMPHASIS_DISABLED, | |
1688 | V4L2_PREEMPHASIS_75_uS, 1, | |
1689 | V4L2_PREEMPHASIS_50_uS); | |
1690 | break; | |
1691 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1692 | rval = v4l2_ctrl_query_fill(qc, 0, 120, 1, DEFAULT_POWER_LEVEL); | |
1693 | break; | |
1694 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
1695 | rval = v4l2_ctrl_query_fill(qc, 0, 191, 1, 0); | |
1696 | break; | |
1697 | default: | |
1698 | rval = -EINVAL; | |
1699 | break; | |
1700 | }; | |
1701 | ||
1702 | return rval; | |
1703 | } | |
1704 | ||
1705 | /* si4713_g_ctrl - get the value of a control */ | |
1706 | static int si4713_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
1707 | { | |
1708 | struct si4713_device *sdev = to_si4713_device(sd); | |
1709 | int rval = 0; | |
1710 | ||
1711 | if (!sdev) | |
1712 | return -ENODEV; | |
1713 | ||
1714 | mutex_lock(&sdev->mutex); | |
1715 | ||
1716 | if (sdev->power_state) { | |
1717 | rval = si4713_read_property(sdev, SI4713_TX_LINE_INPUT_MUTE, | |
1718 | &sdev->mute); | |
1719 | ||
1720 | if (rval < 0) | |
1721 | goto unlock; | |
1722 | } | |
1723 | ||
1724 | switch (ctrl->id) { | |
1725 | case V4L2_CID_AUDIO_MUTE: | |
1726 | ctrl->value = get_mute(sdev->mute); | |
1727 | break; | |
1728 | } | |
1729 | ||
1730 | unlock: | |
1731 | mutex_unlock(&sdev->mutex); | |
1732 | return rval; | |
1733 | } | |
1734 | ||
1735 | /* si4713_s_ctrl - set the value of a control */ | |
1736 | static int si4713_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
1737 | { | |
1738 | struct si4713_device *sdev = to_si4713_device(sd); | |
1739 | int rval = 0; | |
1740 | ||
1741 | if (!sdev) | |
1742 | return -ENODEV; | |
1743 | ||
1744 | switch (ctrl->id) { | |
1745 | case V4L2_CID_AUDIO_MUTE: | |
1746 | if (ctrl->value) { | |
1747 | rval = si4713_set_mute(sdev, ctrl->value); | |
1748 | if (rval < 0) | |
1749 | goto exit; | |
1750 | ||
1751 | rval = si4713_set_power_state(sdev, POWER_DOWN); | |
1752 | } else { | |
1753 | rval = si4713_set_power_state(sdev, POWER_UP); | |
1754 | if (rval < 0) | |
1755 | goto exit; | |
1756 | ||
1757 | rval = si4713_setup(sdev); | |
1758 | if (rval < 0) | |
1759 | goto exit; | |
1760 | ||
1761 | rval = si4713_set_mute(sdev, ctrl->value); | |
1762 | } | |
1763 | break; | |
1764 | } | |
1765 | ||
1766 | exit: | |
1767 | return rval; | |
1768 | } | |
1769 | ||
1770 | /* si4713_ioctl - deal with private ioctls (only rnl for now) */ | |
1771 | long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) | |
1772 | { | |
1773 | struct si4713_device *sdev = to_si4713_device(sd); | |
1774 | struct si4713_rnl *rnl = arg; | |
1775 | u16 frequency; | |
1776 | int rval = 0; | |
1777 | ||
1778 | if (!arg) | |
1779 | return -EINVAL; | |
1780 | ||
1781 | mutex_lock(&sdev->mutex); | |
1782 | switch (cmd) { | |
1783 | case SI4713_IOC_MEASURE_RNL: | |
1784 | frequency = v4l2_to_si4713(rnl->frequency); | |
1785 | ||
1786 | if (sdev->power_state) { | |
1787 | /* Set desired measurement frequency */ | |
1788 | rval = si4713_tx_tune_measure(sdev, frequency, 0); | |
1789 | if (rval < 0) | |
1790 | goto unlock; | |
1791 | /* get results from tune status */ | |
1792 | rval = si4713_update_tune_status(sdev); | |
1793 | if (rval < 0) | |
1794 | goto unlock; | |
1795 | } | |
1796 | rnl->rnl = sdev->tune_rnl; | |
1797 | break; | |
1798 | ||
1799 | default: | |
1800 | /* nothing */ | |
1801 | rval = -ENOIOCTLCMD; | |
1802 | } | |
1803 | ||
1804 | unlock: | |
1805 | mutex_unlock(&sdev->mutex); | |
1806 | return rval; | |
1807 | } | |
1808 | ||
1809 | static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { | |
1810 | .queryctrl = si4713_queryctrl, | |
1811 | .g_ext_ctrls = si4713_g_ext_ctrls, | |
1812 | .s_ext_ctrls = si4713_s_ext_ctrls, | |
1813 | .g_ctrl = si4713_g_ctrl, | |
1814 | .s_ctrl = si4713_s_ctrl, | |
1815 | .ioctl = si4713_ioctl, | |
1816 | }; | |
1817 | ||
1818 | /* si4713_g_modulator - get modulator attributes */ | |
1819 | static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) | |
1820 | { | |
1821 | struct si4713_device *sdev = to_si4713_device(sd); | |
1822 | int rval = 0; | |
1823 | ||
1824 | if (!sdev) { | |
1825 | rval = -ENODEV; | |
1826 | goto exit; | |
1827 | } | |
1828 | ||
1829 | if (vm->index > 0) { | |
1830 | rval = -EINVAL; | |
1831 | goto exit; | |
1832 | } | |
1833 | ||
1834 | strncpy(vm->name, "FM Modulator", 32); | |
1835 | vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW | | |
cb0ed222 | 1836 | V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS; |
02bee89e EV |
1837 | |
1838 | /* Report current frequency range limits */ | |
1839 | vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW); | |
1840 | vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH); | |
1841 | ||
1842 | mutex_lock(&sdev->mutex); | |
1843 | ||
1844 | if (sdev->power_state) { | |
1845 | u32 comp_en = 0; | |
1846 | ||
1847 | rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, | |
1848 | &comp_en); | |
1849 | if (rval < 0) | |
1850 | goto unlock; | |
1851 | ||
1852 | sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); | |
1853 | sdev->rds_info.enabled = get_status_bit(comp_en, 2, 1 << 2); | |
1854 | } | |
1855 | ||
1856 | /* Report current audio mode: mono or stereo */ | |
1857 | if (sdev->stereo) | |
1858 | vm->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1859 | else | |
1860 | vm->txsubchans = V4L2_TUNER_SUB_MONO; | |
1861 | ||
1862 | /* Report rds feature status */ | |
1863 | if (sdev->rds_info.enabled) | |
1864 | vm->txsubchans |= V4L2_TUNER_SUB_RDS; | |
1865 | else | |
1866 | vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; | |
1867 | ||
1868 | unlock: | |
1869 | mutex_unlock(&sdev->mutex); | |
1870 | exit: | |
1871 | return rval; | |
1872 | } | |
1873 | ||
1874 | /* si4713_s_modulator - set modulator attributes */ | |
1875 | static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) | |
1876 | { | |
1877 | struct si4713_device *sdev = to_si4713_device(sd); | |
1878 | int rval = 0; | |
1879 | u16 stereo, rds; | |
1880 | u32 p; | |
1881 | ||
a65f3159 HV |
1882 | if (!sdev) |
1883 | return -ENODEV; | |
02bee89e | 1884 | |
a65f3159 HV |
1885 | if (vm->index > 0) |
1886 | return -EINVAL; | |
02bee89e EV |
1887 | |
1888 | /* Set audio mode: mono or stereo */ | |
1889 | if (vm->txsubchans & V4L2_TUNER_SUB_STEREO) | |
1890 | stereo = 1; | |
1891 | else if (vm->txsubchans & V4L2_TUNER_SUB_MONO) | |
1892 | stereo = 0; | |
1893 | else | |
a65f3159 | 1894 | return -EINVAL; |
02bee89e EV |
1895 | |
1896 | rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS); | |
1897 | ||
1898 | mutex_lock(&sdev->mutex); | |
1899 | ||
1900 | if (sdev->power_state) { | |
1901 | rval = si4713_read_property(sdev, | |
1902 | SI4713_TX_COMPONENT_ENABLE, &p); | |
1903 | if (rval < 0) | |
1904 | goto unlock; | |
1905 | ||
1906 | p = set_bits(p, stereo, 1, 1 << 1); | |
1907 | p = set_bits(p, rds, 2, 1 << 2); | |
1908 | ||
1909 | rval = si4713_write_property(sdev, | |
1910 | SI4713_TX_COMPONENT_ENABLE, p); | |
1911 | if (rval < 0) | |
1912 | goto unlock; | |
1913 | } | |
1914 | ||
1915 | sdev->stereo = stereo; | |
1916 | sdev->rds_info.enabled = rds; | |
1917 | ||
1918 | unlock: | |
1919 | mutex_unlock(&sdev->mutex); | |
02bee89e EV |
1920 | return rval; |
1921 | } | |
1922 | ||
1923 | /* si4713_g_frequency - get tuner or modulator radio frequency */ | |
1924 | static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
1925 | { | |
1926 | struct si4713_device *sdev = to_si4713_device(sd); | |
1927 | int rval = 0; | |
1928 | ||
1929 | f->type = V4L2_TUNER_RADIO; | |
1930 | ||
1931 | mutex_lock(&sdev->mutex); | |
1932 | ||
1933 | if (sdev->power_state) { | |
1934 | u16 freq; | |
1935 | u8 p, a, n; | |
1936 | ||
1937 | rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); | |
1938 | if (rval < 0) | |
1939 | goto unlock; | |
1940 | ||
1941 | sdev->frequency = freq; | |
1942 | } | |
1943 | ||
1944 | f->frequency = si4713_to_v4l2(sdev->frequency); | |
1945 | ||
1946 | unlock: | |
1947 | mutex_unlock(&sdev->mutex); | |
1948 | return rval; | |
1949 | } | |
1950 | ||
1951 | /* si4713_s_frequency - set tuner or modulator radio frequency */ | |
1952 | static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
1953 | { | |
1954 | struct si4713_device *sdev = to_si4713_device(sd); | |
1955 | int rval = 0; | |
1956 | u16 frequency = v4l2_to_si4713(f->frequency); | |
1957 | ||
1958 | /* Check frequency range */ | |
1959 | if (frequency < FREQ_RANGE_LOW || frequency > FREQ_RANGE_HIGH) | |
1960 | return -EDOM; | |
1961 | ||
1962 | mutex_lock(&sdev->mutex); | |
1963 | ||
1964 | if (sdev->power_state) { | |
1965 | rval = si4713_tx_tune_freq(sdev, frequency); | |
1966 | if (rval < 0) | |
1967 | goto unlock; | |
1968 | frequency = rval; | |
1969 | rval = 0; | |
1970 | } | |
1971 | sdev->frequency = frequency; | |
1972 | f->frequency = si4713_to_v4l2(frequency); | |
1973 | ||
1974 | unlock: | |
1975 | mutex_unlock(&sdev->mutex); | |
1976 | return rval; | |
1977 | } | |
1978 | ||
1979 | static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = { | |
1980 | .g_frequency = si4713_g_frequency, | |
1981 | .s_frequency = si4713_s_frequency, | |
1982 | .g_modulator = si4713_g_modulator, | |
1983 | .s_modulator = si4713_s_modulator, | |
1984 | }; | |
1985 | ||
1986 | static const struct v4l2_subdev_ops si4713_subdev_ops = { | |
1987 | .core = &si4713_subdev_core_ops, | |
1988 | .tuner = &si4713_subdev_tuner_ops, | |
1989 | }; | |
1990 | ||
1991 | /* | |
1992 | * I2C driver interface | |
1993 | */ | |
1994 | /* si4713_probe - probe for the device */ | |
1995 | static int si4713_probe(struct i2c_client *client, | |
1996 | const struct i2c_device_id *id) | |
1997 | { | |
1998 | struct si4713_device *sdev; | |
00df055a JN |
1999 | struct si4713_platform_data *pdata = client->dev.platform_data; |
2000 | int rval, i; | |
02bee89e EV |
2001 | |
2002 | sdev = kzalloc(sizeof *sdev, GFP_KERNEL); | |
2003 | if (!sdev) { | |
2004 | dev_err(&client->dev, "Failed to alloc video device.\n"); | |
2005 | rval = -ENOMEM; | |
2006 | goto exit; | |
2007 | } | |
2008 | ||
00df055a JN |
2009 | sdev->gpio_reset = -1; |
2010 | if (pdata && gpio_is_valid(pdata->gpio_reset)) { | |
2011 | rval = gpio_request(pdata->gpio_reset, "si4713 reset"); | |
2012 | if (rval) { | |
2013 | dev_err(&client->dev, | |
2014 | "Failed to request gpio: %d\n", rval); | |
2015 | goto free_sdev; | |
2016 | } | |
2017 | sdev->gpio_reset = pdata->gpio_reset; | |
2018 | gpio_direction_output(sdev->gpio_reset, 0); | |
2019 | } | |
2020 | ||
2021 | for (i = 0; i < ARRAY_SIZE(sdev->supplies); i++) | |
2022 | sdev->supplies[i].supply = si4713_supply_names[i]; | |
2023 | ||
2024 | rval = regulator_bulk_get(&client->dev, ARRAY_SIZE(sdev->supplies), | |
2025 | sdev->supplies); | |
2026 | if (rval) { | |
2027 | dev_err(&client->dev, "Cannot get regulators: %d\n", rval); | |
2028 | goto free_gpio; | |
02bee89e EV |
2029 | } |
2030 | ||
2031 | v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops); | |
2032 | ||
2033 | mutex_init(&sdev->mutex); | |
2034 | init_completion(&sdev->work); | |
2035 | ||
2036 | if (client->irq) { | |
2037 | rval = request_irq(client->irq, | |
2038 | si4713_handler, IRQF_TRIGGER_FALLING | IRQF_DISABLED, | |
2039 | client->name, sdev); | |
2040 | if (rval < 0) { | |
2041 | v4l2_err(&sdev->sd, "Could not request IRQ\n"); | |
00df055a | 2042 | goto put_reg; |
02bee89e EV |
2043 | } |
2044 | v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n"); | |
2045 | } else { | |
2046 | v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n"); | |
2047 | } | |
2048 | ||
2049 | rval = si4713_initialize(sdev); | |
2050 | if (rval < 0) { | |
2051 | v4l2_err(&sdev->sd, "Failed to probe device information.\n"); | |
2052 | goto free_irq; | |
2053 | } | |
2054 | ||
2055 | return 0; | |
2056 | ||
2057 | free_irq: | |
2058 | if (client->irq) | |
2059 | free_irq(client->irq, sdev); | |
00df055a JN |
2060 | put_reg: |
2061 | regulator_bulk_free(ARRAY_SIZE(sdev->supplies), sdev->supplies); | |
2062 | free_gpio: | |
2063 | if (gpio_is_valid(sdev->gpio_reset)) | |
2064 | gpio_free(sdev->gpio_reset); | |
02bee89e EV |
2065 | free_sdev: |
2066 | kfree(sdev); | |
2067 | exit: | |
2068 | return rval; | |
2069 | } | |
2070 | ||
2071 | /* si4713_remove - remove the device */ | |
2072 | static int si4713_remove(struct i2c_client *client) | |
2073 | { | |
2074 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
2075 | struct si4713_device *sdev = to_si4713_device(sd); | |
2076 | ||
2077 | if (sdev->power_state) | |
2078 | si4713_set_power_state(sdev, POWER_DOWN); | |
2079 | ||
2080 | if (client->irq > 0) | |
2081 | free_irq(client->irq, sdev); | |
2082 | ||
2083 | v4l2_device_unregister_subdev(sd); | |
00df055a JN |
2084 | regulator_bulk_free(ARRAY_SIZE(sdev->supplies), sdev->supplies); |
2085 | if (gpio_is_valid(sdev->gpio_reset)) | |
2086 | gpio_free(sdev->gpio_reset); | |
02bee89e EV |
2087 | kfree(sdev); |
2088 | ||
2089 | return 0; | |
2090 | } | |
2091 | ||
2092 | /* si4713_i2c_driver - i2c driver interface */ | |
2093 | static const struct i2c_device_id si4713_id[] = { | |
2094 | { "si4713" , 0 }, | |
2095 | { }, | |
2096 | }; | |
2097 | MODULE_DEVICE_TABLE(i2c, si4713_id); | |
2098 | ||
2099 | static struct i2c_driver si4713_i2c_driver = { | |
2100 | .driver = { | |
2101 | .name = "si4713", | |
2102 | }, | |
2103 | .probe = si4713_probe, | |
2104 | .remove = si4713_remove, | |
2105 | .id_table = si4713_id, | |
2106 | }; | |
2107 | ||
2108 | /* Module Interface */ | |
2109 | static int __init si4713_module_init(void) | |
2110 | { | |
2111 | return i2c_add_driver(&si4713_i2c_driver); | |
2112 | } | |
2113 | ||
2114 | static void __exit si4713_module_exit(void) | |
2115 | { | |
2116 | i2c_del_driver(&si4713_i2c_driver); | |
2117 | } | |
2118 | ||
2119 | module_init(si4713_module_init); | |
2120 | module_exit(si4713_module_exit); | |
2121 |