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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 | ||
02bee89e EV |
24 | #include <linux/completion.h> |
25 | #include <linux/delay.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/i2c.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
00df055a JN |
29 | #include <linux/gpio.h> |
30 | #include <linux/regulator/consumer.h> | |
7a707b89 | 31 | #include <linux/module.h> |
02bee89e EV |
32 | #include <media/v4l2-device.h> |
33 | #include <media/v4l2-ioctl.h> | |
34 | #include <media/v4l2-common.h> | |
35 | ||
7391232e | 36 | #include "si4713.h" |
02bee89e EV |
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 | |
02bee89e EV |
55 | #define DEFAULT_RDS_DEVIATION 0x00C8 |
56 | #define DEFAULT_RDS_PS_REPEAT_COUNT 0x0003 | |
57 | #define DEFAULT_LIMITER_RTIME 0x1392 | |
58 | #define DEFAULT_LIMITER_DEV 0x102CA | |
59 | #define DEFAULT_PILOT_FREQUENCY 0x4A38 | |
60 | #define DEFAULT_PILOT_DEVIATION 0x1A5E | |
61 | #define DEFAULT_ACOMP_ATIME 0x0000 | |
62 | #define DEFAULT_ACOMP_RTIME 0xF4240L | |
63 | #define DEFAULT_ACOMP_GAIN 0x0F | |
64 | #define DEFAULT_ACOMP_THRESHOLD (-0x28) | |
65 | #define DEFAULT_MUTE 0x01 | |
66 | #define DEFAULT_POWER_LEVEL 88 | |
67 | #define DEFAULT_FREQUENCY 8800 | |
68 | #define DEFAULT_PREEMPHASIS FMPE_EU | |
69 | #define DEFAULT_TUNE_RNL 0xFF | |
70 | ||
71 | #define to_si4713_device(sd) container_of(sd, struct si4713_device, sd) | |
72 | ||
73 | /* frequency domain transformation (using times 10 to avoid floats) */ | |
74 | #define FREQDEV_UNIT 100000 | |
75 | #define FREQV4L2_MULTI 625 | |
76 | #define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI) | |
77 | #define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT) | |
78 | #define FREQ_RANGE_LOW 7600 | |
79 | #define FREQ_RANGE_HIGH 10800 | |
80 | ||
81 | #define MAX_ARGS 7 | |
82 | ||
83 | #define RDS_BLOCK 8 | |
84 | #define RDS_BLOCK_CLEAR 0x03 | |
85 | #define RDS_BLOCK_LOAD 0x04 | |
86 | #define RDS_RADIOTEXT_2A 0x20 | |
87 | #define RDS_RADIOTEXT_BLK_SIZE 4 | |
88 | #define RDS_RADIOTEXT_INDEX_MAX 0x0F | |
89 | #define RDS_CARRIAGE_RETURN 0x0D | |
90 | ||
91 | #define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0)) | |
92 | ||
93 | #define get_status_bit(p, b, m) (((p) & (m)) >> (b)) | |
94 | #define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b))) | |
95 | ||
96 | #define ATTACK_TIME_UNIT 500 | |
97 | ||
98 | #define POWER_OFF 0x00 | |
99 | #define POWER_ON 0x01 | |
100 | ||
101 | #define msb(x) ((u8)((u16) x >> 8)) | |
102 | #define lsb(x) ((u8)((u16) x & 0x00FF)) | |
103 | #define compose_u16(msb, lsb) (((u16)msb << 8) | lsb) | |
104 | #define check_command_failed(status) (!(status & SI4713_CTS) || \ | |
105 | (status & SI4713_ERR)) | |
106 | /* mute definition */ | |
107 | #define set_mute(p) ((p & 1) | ((p & 1) << 1)); | |
02bee89e EV |
108 | |
109 | #ifdef DEBUG | |
110 | #define DBG_BUFFER(device, message, buffer, size) \ | |
111 | { \ | |
112 | int i; \ | |
113 | char str[(size)*5]; \ | |
114 | for (i = 0; i < size; i++) \ | |
115 | sprintf(str + i * 5, " 0x%02x", buffer[i]); \ | |
116 | v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \ | |
117 | } | |
118 | #else | |
119 | #define DBG_BUFFER(device, message, buffer, size) | |
120 | #endif | |
121 | ||
122 | /* | |
123 | * Values for limiter release time (sorted by second column) | |
124 | * device release | |
125 | * value time (us) | |
126 | */ | |
127 | static long limiter_times[] = { | |
128 | 2000, 250, | |
129 | 1000, 500, | |
130 | 510, 1000, | |
131 | 255, 2000, | |
132 | 170, 3000, | |
133 | 127, 4020, | |
134 | 102, 5010, | |
135 | 85, 6020, | |
136 | 73, 7010, | |
137 | 64, 7990, | |
138 | 57, 8970, | |
139 | 51, 10030, | |
140 | 25, 20470, | |
141 | 17, 30110, | |
142 | 13, 39380, | |
143 | 10, 51190, | |
144 | 8, 63690, | |
145 | 7, 73140, | |
146 | 6, 85330, | |
147 | 5, 102390, | |
148 | }; | |
149 | ||
150 | /* | |
151 | * Values for audio compression release time (sorted by second column) | |
152 | * device release | |
153 | * value time (us) | |
154 | */ | |
155 | static unsigned long acomp_rtimes[] = { | |
156 | 0, 100000, | |
157 | 1, 200000, | |
158 | 2, 350000, | |
159 | 3, 525000, | |
160 | 4, 1000000, | |
161 | }; | |
162 | ||
163 | /* | |
164 | * Values for preemphasis (sorted by second column) | |
165 | * device preemphasis | |
166 | * value value (v4l2) | |
167 | */ | |
168 | static unsigned long preemphasis_values[] = { | |
169 | FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED, | |
170 | FMPE_EU, V4L2_PREEMPHASIS_50_uS, | |
171 | FMPE_USA, V4L2_PREEMPHASIS_75_uS, | |
172 | }; | |
173 | ||
174 | static int usecs_to_dev(unsigned long usecs, unsigned long const array[], | |
175 | int size) | |
176 | { | |
177 | int i; | |
178 | int rval = -EINVAL; | |
179 | ||
180 | for (i = 0; i < size / 2; i++) | |
181 | if (array[(i * 2) + 1] >= usecs) { | |
182 | rval = array[i * 2]; | |
183 | break; | |
184 | } | |
185 | ||
186 | return rval; | |
187 | } | |
188 | ||
02bee89e EV |
189 | /* si4713_handler: IRQ handler, just complete work */ |
190 | static irqreturn_t si4713_handler(int irq, void *dev) | |
191 | { | |
192 | struct si4713_device *sdev = dev; | |
193 | ||
194 | v4l2_dbg(2, debug, &sdev->sd, | |
195 | "%s: sending signal to completion work.\n", __func__); | |
196 | complete(&sdev->work); | |
197 | ||
198 | return IRQ_HANDLED; | |
199 | } | |
200 | ||
201 | /* | |
202 | * si4713_send_command - sends a command to si4713 and waits its response | |
203 | * @sdev: si4713_device structure for the device we are communicating | |
204 | * @command: command id | |
205 | * @args: command arguments we are sending (up to 7) | |
206 | * @argn: actual size of @args | |
207 | * @response: buffer to place the expected response from the device (up to 15) | |
208 | * @respn: actual size of @response | |
209 | * @usecs: amount of time to wait before reading the response (in usecs) | |
210 | */ | |
211 | static int si4713_send_command(struct si4713_device *sdev, const u8 command, | |
212 | const u8 args[], const int argn, | |
213 | u8 response[], const int respn, const int usecs) | |
214 | { | |
215 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
216 | u8 data1[MAX_ARGS + 1]; | |
217 | int err; | |
218 | ||
219 | if (!client->adapter) | |
220 | return -ENODEV; | |
221 | ||
222 | /* First send the command and its arguments */ | |
223 | data1[0] = command; | |
224 | memcpy(data1 + 1, args, argn); | |
225 | DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1); | |
226 | ||
227 | err = i2c_master_send(client, data1, argn + 1); | |
228 | if (err != argn + 1) { | |
229 | v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n", | |
230 | command); | |
231 | return (err > 0) ? -EIO : err; | |
232 | } | |
233 | ||
234 | /* Wait response from interrupt */ | |
235 | if (!wait_for_completion_timeout(&sdev->work, | |
236 | usecs_to_jiffies(usecs) + 1)) | |
237 | v4l2_warn(&sdev->sd, | |
238 | "(%s) Device took too much time to answer.\n", | |
239 | __func__); | |
240 | ||
241 | /* Then get the response */ | |
242 | err = i2c_master_recv(client, response, respn); | |
243 | if (err != respn) { | |
244 | v4l2_err(&sdev->sd, | |
245 | "Error while reading response for command 0x%02x\n", | |
246 | command); | |
247 | return (err > 0) ? -EIO : err; | |
248 | } | |
249 | ||
250 | DBG_BUFFER(&sdev->sd, "Response", response, respn); | |
251 | if (check_command_failed(response[0])) | |
252 | return -EBUSY; | |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
257 | /* | |
258 | * si4713_read_property - reads a si4713 property | |
259 | * @sdev: si4713_device structure for the device we are communicating | |
260 | * @prop: property identification number | |
261 | * @pv: property value to be returned on success | |
262 | */ | |
263 | static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv) | |
264 | { | |
265 | int err; | |
266 | u8 val[SI4713_GET_PROP_NRESP]; | |
267 | /* | |
268 | * .First byte = 0 | |
269 | * .Second byte = property's MSB | |
270 | * .Third byte = property's LSB | |
271 | */ | |
272 | const u8 args[SI4713_GET_PROP_NARGS] = { | |
273 | 0x00, | |
274 | msb(prop), | |
275 | lsb(prop), | |
276 | }; | |
277 | ||
278 | err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY, | |
279 | args, ARRAY_SIZE(args), val, | |
280 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
281 | ||
282 | if (err < 0) | |
283 | return err; | |
284 | ||
285 | *pv = compose_u16(val[2], val[3]); | |
286 | ||
287 | v4l2_dbg(1, debug, &sdev->sd, | |
288 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
289 | __func__, prop, *pv, val[0]); | |
290 | ||
291 | return err; | |
292 | } | |
293 | ||
294 | /* | |
295 | * si4713_write_property - modifies a si4713 property | |
296 | * @sdev: si4713_device structure for the device we are communicating | |
297 | * @prop: property identification number | |
298 | * @val: new value for that property | |
299 | */ | |
300 | static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val) | |
301 | { | |
302 | int rval; | |
303 | u8 resp[SI4713_SET_PROP_NRESP]; | |
304 | /* | |
305 | * .First byte = 0 | |
306 | * .Second byte = property's MSB | |
307 | * .Third byte = property's LSB | |
308 | * .Fourth byte = value's MSB | |
309 | * .Fifth byte = value's LSB | |
310 | */ | |
311 | const u8 args[SI4713_SET_PROP_NARGS] = { | |
312 | 0x00, | |
313 | msb(prop), | |
314 | lsb(prop), | |
315 | msb(val), | |
316 | lsb(val), | |
317 | }; | |
318 | ||
319 | rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY, | |
320 | args, ARRAY_SIZE(args), | |
321 | resp, ARRAY_SIZE(resp), | |
322 | DEFAULT_TIMEOUT); | |
323 | ||
324 | if (rval < 0) | |
325 | return rval; | |
326 | ||
327 | v4l2_dbg(1, debug, &sdev->sd, | |
328 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
329 | __func__, prop, val, resp[0]); | |
330 | ||
331 | /* | |
332 | * As there is no command response for SET_PROPERTY, | |
333 | * wait Tcomp time to finish before proceed, in order | |
334 | * to have property properly set. | |
335 | */ | |
336 | msleep(TIMEOUT_SET_PROPERTY); | |
337 | ||
338 | return rval; | |
339 | } | |
340 | ||
341 | /* | |
342 | * si4713_powerup - Powers the device up | |
343 | * @sdev: si4713_device structure for the device we are communicating | |
344 | */ | |
345 | static int si4713_powerup(struct si4713_device *sdev) | |
346 | { | |
347 | int err; | |
348 | u8 resp[SI4713_PWUP_NRESP]; | |
349 | /* | |
350 | * .First byte = Enabled interrupts and boot function | |
351 | * .Second byte = Input operation mode | |
352 | */ | |
353 | const u8 args[SI4713_PWUP_NARGS] = { | |
354 | SI4713_PWUP_CTSIEN | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX, | |
355 | SI4713_PWUP_OPMOD_ANALOG, | |
356 | }; | |
357 | ||
358 | if (sdev->power_state) | |
359 | return 0; | |
360 | ||
00df055a JN |
361 | err = regulator_bulk_enable(ARRAY_SIZE(sdev->supplies), |
362 | sdev->supplies); | |
363 | if (err) { | |
364 | v4l2_err(&sdev->sd, "Failed to enable supplies: %d\n", err); | |
365 | return err; | |
366 | } | |
367 | if (gpio_is_valid(sdev->gpio_reset)) { | |
368 | udelay(50); | |
369 | gpio_set_value(sdev->gpio_reset, 1); | |
370 | } | |
371 | ||
02bee89e EV |
372 | err = si4713_send_command(sdev, SI4713_CMD_POWER_UP, |
373 | args, ARRAY_SIZE(args), | |
374 | resp, ARRAY_SIZE(resp), | |
375 | TIMEOUT_POWER_UP); | |
376 | ||
377 | if (!err) { | |
378 | v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n", | |
379 | resp[0]); | |
380 | v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n"); | |
381 | sdev->power_state = POWER_ON; | |
382 | ||
383 | err = si4713_write_property(sdev, SI4713_GPO_IEN, | |
384 | SI4713_STC_INT | SI4713_CTS); | |
385 | } else { | |
00df055a JN |
386 | if (gpio_is_valid(sdev->gpio_reset)) |
387 | gpio_set_value(sdev->gpio_reset, 0); | |
388 | err = regulator_bulk_disable(ARRAY_SIZE(sdev->supplies), | |
389 | sdev->supplies); | |
390 | if (err) | |
391 | v4l2_err(&sdev->sd, | |
392 | "Failed to disable supplies: %d\n", err); | |
02bee89e EV |
393 | } |
394 | ||
395 | return err; | |
396 | } | |
397 | ||
398 | /* | |
399 | * si4713_powerdown - Powers the device down | |
400 | * @sdev: si4713_device structure for the device we are communicating | |
401 | */ | |
402 | static int si4713_powerdown(struct si4713_device *sdev) | |
403 | { | |
404 | int err; | |
405 | u8 resp[SI4713_PWDN_NRESP]; | |
406 | ||
407 | if (!sdev->power_state) | |
408 | return 0; | |
409 | ||
410 | err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN, | |
411 | NULL, 0, | |
412 | resp, ARRAY_SIZE(resp), | |
413 | DEFAULT_TIMEOUT); | |
414 | ||
415 | if (!err) { | |
416 | v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", | |
417 | resp[0]); | |
418 | v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); | |
00df055a JN |
419 | if (gpio_is_valid(sdev->gpio_reset)) |
420 | gpio_set_value(sdev->gpio_reset, 0); | |
421 | err = regulator_bulk_disable(ARRAY_SIZE(sdev->supplies), | |
422 | sdev->supplies); | |
423 | if (err) | |
424 | v4l2_err(&sdev->sd, | |
425 | "Failed to disable supplies: %d\n", err); | |
02bee89e EV |
426 | sdev->power_state = POWER_OFF; |
427 | } | |
428 | ||
429 | return err; | |
430 | } | |
431 | ||
432 | /* | |
433 | * si4713_checkrev - Checks if we are treating a device with the correct rev. | |
434 | * @sdev: si4713_device structure for the device we are communicating | |
435 | */ | |
436 | static int si4713_checkrev(struct si4713_device *sdev) | |
437 | { | |
438 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
439 | int rval; | |
440 | u8 resp[SI4713_GETREV_NRESP]; | |
441 | ||
02bee89e EV |
442 | rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, |
443 | NULL, 0, | |
444 | resp, ARRAY_SIZE(resp), | |
445 | DEFAULT_TIMEOUT); | |
446 | ||
447 | if (rval < 0) | |
55b2a312 | 448 | return rval; |
02bee89e EV |
449 | |
450 | if (resp[1] == SI4713_PRODUCT_NUMBER) { | |
451 | v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n", | |
452 | client->addr << 1, client->adapter->name); | |
453 | } else { | |
454 | v4l2_err(&sdev->sd, "Invalid product number\n"); | |
455 | rval = -EINVAL; | |
456 | } | |
02bee89e EV |
457 | return rval; |
458 | } | |
459 | ||
460 | /* | |
25985edc | 461 | * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful |
02bee89e EV |
462 | * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS |
463 | * @sdev: si4713_device structure for the device we are communicating | |
464 | * @usecs: timeout to wait for STC interrupt signal | |
465 | */ | |
466 | static int si4713_wait_stc(struct si4713_device *sdev, const int usecs) | |
467 | { | |
468 | int err; | |
469 | u8 resp[SI4713_GET_STATUS_NRESP]; | |
470 | ||
471 | /* Wait response from STC interrupt */ | |
472 | if (!wait_for_completion_timeout(&sdev->work, | |
473 | usecs_to_jiffies(usecs) + 1)) | |
474 | v4l2_warn(&sdev->sd, | |
475 | "%s: device took too much time to answer (%d usec).\n", | |
476 | __func__, usecs); | |
477 | ||
478 | /* Clear status bits */ | |
479 | err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS, | |
480 | NULL, 0, | |
481 | resp, ARRAY_SIZE(resp), | |
482 | DEFAULT_TIMEOUT); | |
483 | ||
484 | if (err < 0) | |
485 | goto exit; | |
486 | ||
487 | v4l2_dbg(1, debug, &sdev->sd, | |
488 | "%s: status bits: 0x%02x\n", __func__, resp[0]); | |
489 | ||
490 | if (!(resp[0] & SI4713_STC_INT)) | |
491 | err = -EIO; | |
492 | ||
493 | exit: | |
494 | return err; | |
495 | } | |
496 | ||
497 | /* | |
498 | * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning | |
499 | * frequency between 76 and 108 MHz in 10 kHz units and | |
500 | * steps of 50 kHz. | |
501 | * @sdev: si4713_device structure for the device we are communicating | |
502 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
503 | */ | |
504 | static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency) | |
505 | { | |
506 | int err; | |
507 | u8 val[SI4713_TXFREQ_NRESP]; | |
508 | /* | |
509 | * .First byte = 0 | |
510 | * .Second byte = frequency's MSB | |
511 | * .Third byte = frequency's LSB | |
512 | */ | |
513 | const u8 args[SI4713_TXFREQ_NARGS] = { | |
514 | 0x00, | |
515 | msb(frequency), | |
516 | lsb(frequency), | |
517 | }; | |
518 | ||
519 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ, | |
520 | args, ARRAY_SIZE(args), val, | |
521 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
522 | ||
523 | if (err < 0) | |
524 | return err; | |
525 | ||
526 | v4l2_dbg(1, debug, &sdev->sd, | |
527 | "%s: frequency=0x%02x status=0x%02x\n", __func__, | |
528 | frequency, val[0]); | |
529 | ||
530 | err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
531 | if (err < 0) | |
532 | return err; | |
533 | ||
534 | return compose_u16(args[1], args[2]); | |
535 | } | |
536 | ||
537 | /* | |
538 | * si4713_tx_tune_power - Sets the RF voltage level between 88 and 115 dBuV in | |
539 | * 1 dB units. A value of 0x00 indicates off. The command | |
540 | * also sets the antenna tuning capacitance. A value of 0 | |
541 | * indicates autotuning, and a value of 1 - 191 indicates | |
542 | * a manual override, which results in a tuning | |
543 | * capacitance of 0.25 pF x @antcap. | |
544 | * @sdev: si4713_device structure for the device we are communicating | |
545 | * @power: tuning power (88 - 115 dBuV, unit/step 1 dB) | |
546 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
547 | */ | |
548 | static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power, | |
549 | u8 antcap) | |
550 | { | |
551 | int err; | |
552 | u8 val[SI4713_TXPWR_NRESP]; | |
553 | /* | |
554 | * .First byte = 0 | |
555 | * .Second byte = 0 | |
556 | * .Third byte = power | |
557 | * .Fourth byte = antcap | |
558 | */ | |
559 | const u8 args[SI4713_TXPWR_NARGS] = { | |
560 | 0x00, | |
561 | 0x00, | |
562 | power, | |
563 | antcap, | |
564 | }; | |
565 | ||
566 | if (((power > 0) && (power < SI4713_MIN_POWER)) || | |
567 | power > SI4713_MAX_POWER || antcap > SI4713_MAX_ANTCAP) | |
568 | return -EDOM; | |
569 | ||
570 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER, | |
571 | args, ARRAY_SIZE(args), val, | |
572 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
573 | ||
574 | if (err < 0) | |
575 | return err; | |
576 | ||
577 | v4l2_dbg(1, debug, &sdev->sd, | |
578 | "%s: power=0x%02x antcap=0x%02x status=0x%02x\n", | |
579 | __func__, power, antcap, val[0]); | |
580 | ||
581 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER); | |
582 | } | |
583 | ||
584 | /* | |
585 | * si4713_tx_tune_measure - Enters receive mode and measures the received noise | |
586 | * level in units of dBuV on the selected frequency. | |
587 | * The Frequency must be between 76 and 108 MHz in 10 kHz | |
588 | * units and steps of 50 kHz. The command also sets the | |
589 | * antenna tuning capacitance. A value of 0 means | |
590 | * autotuning, and a value of 1 to 191 indicates manual | |
591 | * override. | |
592 | * @sdev: si4713_device structure for the device we are communicating | |
593 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
594 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
595 | */ | |
596 | static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency, | |
597 | u8 antcap) | |
598 | { | |
599 | int err; | |
600 | u8 val[SI4713_TXMEA_NRESP]; | |
601 | /* | |
602 | * .First byte = 0 | |
603 | * .Second byte = frequency's MSB | |
604 | * .Third byte = frequency's LSB | |
605 | * .Fourth byte = antcap | |
606 | */ | |
607 | const u8 args[SI4713_TXMEA_NARGS] = { | |
608 | 0x00, | |
609 | msb(frequency), | |
610 | lsb(frequency), | |
611 | antcap, | |
612 | }; | |
613 | ||
614 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
615 | ||
616 | if (antcap > SI4713_MAX_ANTCAP) | |
617 | return -EDOM; | |
618 | ||
619 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE, | |
620 | args, ARRAY_SIZE(args), val, | |
621 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
622 | ||
623 | if (err < 0) | |
624 | return err; | |
625 | ||
626 | v4l2_dbg(1, debug, &sdev->sd, | |
627 | "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n", | |
628 | __func__, frequency, antcap, val[0]); | |
629 | ||
630 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
631 | } | |
632 | ||
633 | /* | |
634 | * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or | |
635 | * tx_tune_power commands. This command return the current | |
636 | * frequency, output voltage in dBuV, the antenna tunning | |
637 | * capacitance value and the received noise level. The | |
638 | * command also clears the stcint interrupt bit when the | |
639 | * first bit of its arguments is high. | |
640 | * @sdev: si4713_device structure for the device we are communicating | |
641 | * @intack: 0x01 to clear the seek/tune complete interrupt status indicator. | |
642 | * @frequency: returned frequency | |
643 | * @power: returned power | |
644 | * @antcap: returned antenna capacitance | |
645 | * @noise: returned noise level | |
646 | */ | |
647 | static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack, | |
648 | u16 *frequency, u8 *power, | |
649 | u8 *antcap, u8 *noise) | |
650 | { | |
651 | int err; | |
652 | u8 val[SI4713_TXSTATUS_NRESP]; | |
653 | /* | |
654 | * .First byte = intack bit | |
655 | */ | |
656 | const u8 args[SI4713_TXSTATUS_NARGS] = { | |
657 | intack & SI4713_INTACK_MASK, | |
658 | }; | |
659 | ||
660 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS, | |
661 | args, ARRAY_SIZE(args), val, | |
662 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
663 | ||
664 | if (!err) { | |
665 | v4l2_dbg(1, debug, &sdev->sd, | |
666 | "%s: status=0x%02x\n", __func__, val[0]); | |
667 | *frequency = compose_u16(val[2], val[3]); | |
668 | sdev->frequency = *frequency; | |
669 | *power = val[5]; | |
670 | *antcap = val[6]; | |
671 | *noise = val[7]; | |
672 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz " | |
673 | "(power %d, antcap %d, rnl %d)\n", __func__, | |
674 | *frequency, *power, *antcap, *noise); | |
675 | } | |
676 | ||
677 | return err; | |
678 | } | |
679 | ||
680 | /* | |
681 | * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer. | |
682 | * @sdev: si4713_device structure for the device we are communicating | |
683 | * @mode: the buffer operation mode. | |
684 | * @rdsb: RDS Block B | |
685 | * @rdsc: RDS Block C | |
686 | * @rdsd: RDS Block D | |
687 | * @cbleft: returns the number of available circular buffer blocks minus the | |
688 | * number of used circular buffer blocks. | |
689 | */ | |
690 | static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb, | |
691 | u16 rdsc, u16 rdsd, s8 *cbleft) | |
692 | { | |
693 | int err; | |
694 | u8 val[SI4713_RDSBUFF_NRESP]; | |
695 | ||
696 | const u8 args[SI4713_RDSBUFF_NARGS] = { | |
697 | mode & SI4713_RDSBUFF_MODE_MASK, | |
698 | msb(rdsb), | |
699 | lsb(rdsb), | |
700 | msb(rdsc), | |
701 | lsb(rdsc), | |
702 | msb(rdsd), | |
703 | lsb(rdsd), | |
704 | }; | |
705 | ||
706 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF, | |
707 | args, ARRAY_SIZE(args), val, | |
708 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
709 | ||
710 | if (!err) { | |
711 | v4l2_dbg(1, debug, &sdev->sd, | |
712 | "%s: status=0x%02x\n", __func__, val[0]); | |
713 | *cbleft = (s8)val[2] - val[3]; | |
714 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts" | |
715 | " 0x%02x cb avail: %d cb used %d fifo avail" | |
716 | " %d fifo used %d\n", __func__, val[1], | |
717 | val[2], val[3], val[4], val[5]); | |
718 | } | |
719 | ||
720 | return err; | |
721 | } | |
722 | ||
723 | /* | |
724 | * si4713_tx_rds_ps - Loads the program service buffer. | |
725 | * @sdev: si4713_device structure for the device we are communicating | |
726 | * @psid: program service id to be loaded. | |
727 | * @pschar: assumed 4 size char array to be loaded into the program service | |
728 | */ | |
729 | static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid, | |
730 | unsigned char *pschar) | |
731 | { | |
732 | int err; | |
733 | u8 val[SI4713_RDSPS_NRESP]; | |
734 | ||
735 | const u8 args[SI4713_RDSPS_NARGS] = { | |
736 | psid & SI4713_RDSPS_PSID_MASK, | |
737 | pschar[0], | |
738 | pschar[1], | |
739 | pschar[2], | |
740 | pschar[3], | |
741 | }; | |
742 | ||
743 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS, | |
744 | args, ARRAY_SIZE(args), val, | |
745 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
746 | ||
747 | if (err < 0) | |
748 | return err; | |
749 | ||
750 | v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]); | |
751 | ||
752 | return err; | |
753 | } | |
754 | ||
755 | static int si4713_set_power_state(struct si4713_device *sdev, u8 value) | |
756 | { | |
02bee89e | 757 | if (value) |
55b2a312 HV |
758 | return si4713_powerup(sdev); |
759 | return si4713_powerdown(sdev); | |
02bee89e EV |
760 | } |
761 | ||
762 | static int si4713_set_mute(struct si4713_device *sdev, u16 mute) | |
763 | { | |
764 | int rval = 0; | |
765 | ||
766 | mute = set_mute(mute); | |
767 | ||
02bee89e EV |
768 | if (sdev->power_state) |
769 | rval = si4713_write_property(sdev, | |
770 | SI4713_TX_LINE_INPUT_MUTE, mute); | |
771 | ||
02bee89e EV |
772 | return rval; |
773 | } | |
774 | ||
775 | static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) | |
776 | { | |
777 | int rval = 0, i; | |
778 | u8 len = 0; | |
779 | ||
780 | /* We want to clear the whole thing */ | |
781 | if (!strlen(ps_name)) | |
782 | memset(ps_name, 0, MAX_RDS_PS_NAME + 1); | |
783 | ||
02bee89e EV |
784 | if (sdev->power_state) { |
785 | /* Write the new ps name and clear the padding */ | |
786 | for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) { | |
787 | rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)), | |
788 | ps_name + i); | |
789 | if (rval < 0) | |
55b2a312 | 790 | return rval; |
02bee89e EV |
791 | } |
792 | ||
793 | /* Setup the size to be sent */ | |
794 | if (strlen(ps_name)) | |
795 | len = strlen(ps_name) - 1; | |
796 | else | |
797 | len = 1; | |
798 | ||
799 | rval = si4713_write_property(sdev, | |
800 | SI4713_TX_RDS_PS_MESSAGE_COUNT, | |
801 | rds_ps_nblocks(len)); | |
802 | if (rval < 0) | |
55b2a312 | 803 | return rval; |
02bee89e EV |
804 | |
805 | rval = si4713_write_property(sdev, | |
806 | SI4713_TX_RDS_PS_REPEAT_COUNT, | |
807 | DEFAULT_RDS_PS_REPEAT_COUNT * 2); | |
808 | if (rval < 0) | |
55b2a312 | 809 | return rval; |
02bee89e EV |
810 | } |
811 | ||
02bee89e EV |
812 | return rval; |
813 | } | |
814 | ||
815 | static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt) | |
816 | { | |
817 | int rval = 0, i; | |
818 | u16 t_index = 0; | |
819 | u8 b_index = 0, cr_inserted = 0; | |
820 | s8 left; | |
821 | ||
02bee89e | 822 | if (!sdev->power_state) |
03aa1bcd | 823 | return rval; |
02bee89e EV |
824 | |
825 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); | |
826 | if (rval < 0) | |
55b2a312 | 827 | return rval; |
02bee89e EV |
828 | |
829 | if (!strlen(rt)) | |
03aa1bcd | 830 | return rval; |
02bee89e EV |
831 | |
832 | do { | |
833 | /* RDS spec says that if the last block isn't used, | |
834 | * then apply a carriage return | |
835 | */ | |
03aa1bcd | 836 | if (t_index < (RDS_RADIOTEXT_INDEX_MAX * RDS_RADIOTEXT_BLK_SIZE)) { |
02bee89e | 837 | for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { |
03aa1bcd HV |
838 | if (!rt[t_index + i] || |
839 | rt[t_index + i] == RDS_CARRIAGE_RETURN) { | |
02bee89e EV |
840 | rt[t_index + i] = RDS_CARRIAGE_RETURN; |
841 | cr_inserted = 1; | |
842 | break; | |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD, | |
848 | compose_u16(RDS_RADIOTEXT_2A, b_index++), | |
849 | compose_u16(rt[t_index], rt[t_index + 1]), | |
850 | compose_u16(rt[t_index + 2], rt[t_index + 3]), | |
851 | &left); | |
852 | if (rval < 0) | |
55b2a312 | 853 | return rval; |
02bee89e EV |
854 | |
855 | t_index += RDS_RADIOTEXT_BLK_SIZE; | |
856 | ||
857 | if (cr_inserted) | |
858 | break; | |
859 | } while (left > 0); | |
860 | ||
03aa1bcd HV |
861 | return rval; |
862 | } | |
863 | ||
864 | /* | |
865 | * si4713_update_tune_status - update properties from tx_tune_status | |
866 | * command. Must be called with sdev->mutex held. | |
867 | * @sdev: si4713_device structure for the device we are communicating | |
868 | */ | |
869 | static int si4713_update_tune_status(struct si4713_device *sdev) | |
870 | { | |
871 | int rval; | |
872 | u16 f = 0; | |
873 | u8 p = 0, a = 0, n = 0; | |
874 | ||
875 | rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n); | |
876 | ||
877 | if (rval < 0) | |
878 | goto exit; | |
879 | ||
880 | /* TODO: check that power_level and antenna_capacitor really are not | |
881 | changed by the hardware. If they are, then these controls should become | |
882 | volatiles. | |
883 | sdev->power_level = p; | |
884 | sdev->antenna_capacitor = a;*/ | |
885 | sdev->tune_rnl = n; | |
886 | ||
887 | exit: | |
02bee89e EV |
888 | return rval; |
889 | } | |
890 | ||
891 | static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, | |
03aa1bcd | 892 | s32 *bit, s32 *mask, u16 *property, int *mul, |
02bee89e EV |
893 | unsigned long **table, int *size) |
894 | { | |
895 | s32 rval = 0; | |
896 | ||
897 | switch (id) { | |
898 | /* FM_TX class controls */ | |
899 | case V4L2_CID_RDS_TX_PI: | |
900 | *property = SI4713_TX_RDS_PI; | |
901 | *mul = 1; | |
02bee89e EV |
902 | break; |
903 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: | |
904 | *property = SI4713_TX_ACOMP_THRESHOLD; | |
905 | *mul = 1; | |
02bee89e EV |
906 | break; |
907 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: | |
908 | *property = SI4713_TX_ACOMP_GAIN; | |
909 | *mul = 1; | |
02bee89e EV |
910 | break; |
911 | case V4L2_CID_PILOT_TONE_FREQUENCY: | |
912 | *property = SI4713_TX_PILOT_FREQUENCY; | |
913 | *mul = 1; | |
02bee89e EV |
914 | break; |
915 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: | |
916 | *property = SI4713_TX_ACOMP_ATTACK_TIME; | |
917 | *mul = ATTACK_TIME_UNIT; | |
02bee89e EV |
918 | break; |
919 | case V4L2_CID_PILOT_TONE_DEVIATION: | |
920 | *property = SI4713_TX_PILOT_DEVIATION; | |
921 | *mul = 10; | |
02bee89e EV |
922 | break; |
923 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: | |
924 | *property = SI4713_TX_AUDIO_DEVIATION; | |
925 | *mul = 10; | |
02bee89e EV |
926 | break; |
927 | case V4L2_CID_RDS_TX_DEVIATION: | |
928 | *property = SI4713_TX_RDS_DEVIATION; | |
929 | *mul = 1; | |
02bee89e EV |
930 | break; |
931 | ||
932 | case V4L2_CID_RDS_TX_PTY: | |
933 | *property = SI4713_TX_RDS_PS_MISC; | |
934 | *bit = 5; | |
935 | *mask = 0x1F << 5; | |
02bee89e EV |
936 | break; |
937 | case V4L2_CID_AUDIO_LIMITER_ENABLED: | |
938 | *property = SI4713_TX_ACOMP_ENABLE; | |
939 | *bit = 1; | |
940 | *mask = 1 << 1; | |
02bee89e EV |
941 | break; |
942 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: | |
943 | *property = SI4713_TX_ACOMP_ENABLE; | |
944 | *bit = 0; | |
945 | *mask = 1 << 0; | |
02bee89e EV |
946 | break; |
947 | case V4L2_CID_PILOT_TONE_ENABLED: | |
948 | *property = SI4713_TX_COMPONENT_ENABLE; | |
949 | *bit = 0; | |
950 | *mask = 1 << 0; | |
02bee89e EV |
951 | break; |
952 | ||
953 | case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: | |
954 | *property = SI4713_TX_LIMITER_RELEASE_TIME; | |
955 | *table = limiter_times; | |
956 | *size = ARRAY_SIZE(limiter_times); | |
02bee89e EV |
957 | break; |
958 | case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: | |
959 | *property = SI4713_TX_ACOMP_RELEASE_TIME; | |
960 | *table = acomp_rtimes; | |
961 | *size = ARRAY_SIZE(acomp_rtimes); | |
02bee89e EV |
962 | break; |
963 | case V4L2_CID_TUNE_PREEMPHASIS: | |
964 | *property = SI4713_TX_PREEMPHASIS; | |
965 | *table = preemphasis_values; | |
966 | *size = ARRAY_SIZE(preemphasis_values); | |
02bee89e EV |
967 | break; |
968 | ||
969 | default: | |
970 | rval = -EINVAL; | |
02bee89e | 971 | break; |
02bee89e EV |
972 | } |
973 | ||
02bee89e EV |
974 | return rval; |
975 | } | |
976 | ||
b530a447 | 977 | static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f); |
3f70e1f5 | 978 | static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *); |
02bee89e EV |
979 | /* |
980 | * si4713_setup - Sets the device up with current configuration. | |
981 | * @sdev: si4713_device structure for the device we are communicating | |
982 | */ | |
983 | static int si4713_setup(struct si4713_device *sdev) | |
984 | { | |
02bee89e EV |
985 | struct v4l2_frequency f; |
986 | struct v4l2_modulator vm; | |
03aa1bcd | 987 | int rval; |
02bee89e EV |
988 | |
989 | /* Device procedure needs to set frequency first */ | |
b387754d | 990 | f.tuner = 0; |
03aa1bcd | 991 | f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY; |
02bee89e | 992 | f.frequency = si4713_to_v4l2(f.frequency); |
03aa1bcd | 993 | rval = si4713_s_frequency(&sdev->sd, &f); |
02bee89e EV |
994 | |
995 | vm.index = 0; | |
03aa1bcd | 996 | if (sdev->stereo) |
02bee89e EV |
997 | vm.txsubchans = V4L2_TUNER_SUB_STEREO; |
998 | else | |
999 | vm.txsubchans = V4L2_TUNER_SUB_MONO; | |
03aa1bcd | 1000 | if (sdev->rds_enabled) |
02bee89e EV |
1001 | vm.txsubchans |= V4L2_TUNER_SUB_RDS; |
1002 | si4713_s_modulator(&sdev->sd, &vm); | |
1003 | ||
02bee89e EV |
1004 | return rval; |
1005 | } | |
1006 | ||
1007 | /* | |
1008 | * si4713_initialize - Sets the device up with default configuration. | |
1009 | * @sdev: si4713_device structure for the device we are communicating | |
1010 | */ | |
1011 | static int si4713_initialize(struct si4713_device *sdev) | |
1012 | { | |
1013 | int rval; | |
1014 | ||
1015 | rval = si4713_set_power_state(sdev, POWER_ON); | |
1016 | if (rval < 0) | |
55b2a312 | 1017 | return rval; |
02bee89e EV |
1018 | |
1019 | rval = si4713_checkrev(sdev); | |
1020 | if (rval < 0) | |
55b2a312 | 1021 | return rval; |
02bee89e EV |
1022 | |
1023 | rval = si4713_set_power_state(sdev, POWER_OFF); | |
1024 | if (rval < 0) | |
55b2a312 | 1025 | return rval; |
02bee89e | 1026 | |
02bee89e EV |
1027 | |
1028 | sdev->frequency = DEFAULT_FREQUENCY; | |
02bee89e EV |
1029 | sdev->stereo = 1; |
1030 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
03aa1bcd | 1031 | return 0; |
02bee89e EV |
1032 | } |
1033 | ||
03aa1bcd HV |
1034 | /* si4713_s_ctrl - set the value of a control */ |
1035 | static int si4713_s_ctrl(struct v4l2_ctrl *ctrl) | |
02bee89e | 1036 | { |
03aa1bcd HV |
1037 | struct si4713_device *sdev = |
1038 | container_of(ctrl->handler, struct si4713_device, ctrl_handler); | |
1039 | u32 val = 0; | |
02bee89e EV |
1040 | s32 bit = 0, mask = 0; |
1041 | u16 property = 0; | |
1042 | int mul = 0; | |
1043 | unsigned long *table = NULL; | |
1044 | int size = 0; | |
03aa1bcd HV |
1045 | bool force = false; |
1046 | int c; | |
1047 | int ret = 0; | |
02bee89e | 1048 | |
03aa1bcd | 1049 | if (ctrl->id != V4L2_CID_AUDIO_MUTE) |
02bee89e | 1050 | return -EINVAL; |
03aa1bcd HV |
1051 | if (ctrl->is_new) { |
1052 | if (ctrl->val) { | |
1053 | ret = si4713_set_mute(sdev, ctrl->val); | |
1054 | if (!ret) | |
1055 | ret = si4713_set_power_state(sdev, POWER_DOWN); | |
1056 | return ret; | |
02bee89e | 1057 | } |
03aa1bcd HV |
1058 | ret = si4713_set_power_state(sdev, POWER_UP); |
1059 | if (!ret) | |
1060 | ret = si4713_set_mute(sdev, ctrl->val); | |
1061 | if (!ret) | |
1062 | ret = si4713_setup(sdev); | |
1063 | if (ret) | |
1064 | return ret; | |
1065 | force = true; | |
02bee89e EV |
1066 | } |
1067 | ||
03aa1bcd HV |
1068 | if (!sdev->power_state) |
1069 | return 0; | |
02bee89e | 1070 | |
03aa1bcd HV |
1071 | for (c = 1; !ret && c < ctrl->ncontrols; c++) { |
1072 | ctrl = ctrl->cluster[c]; | |
02bee89e | 1073 | |
03aa1bcd HV |
1074 | if (!force && !ctrl->is_new) |
1075 | continue; | |
02bee89e | 1076 | |
03aa1bcd | 1077 | switch (ctrl->id) { |
02bee89e | 1078 | case V4L2_CID_RDS_TX_PS_NAME: |
03aa1bcd HV |
1079 | ret = si4713_set_rds_ps_name(sdev, ctrl->string); |
1080 | break; | |
1081 | ||
02bee89e | 1082 | case V4L2_CID_RDS_TX_RADIO_TEXT: |
03aa1bcd | 1083 | ret = si4713_set_rds_radio_text(sdev, ctrl->string); |
02bee89e | 1084 | break; |
03aa1bcd | 1085 | |
02bee89e | 1086 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: |
03aa1bcd HV |
1087 | /* don't handle this control if we force setting all |
1088 | * controls since in that case it will be handled by | |
1089 | * V4L2_CID_TUNE_POWER_LEVEL. */ | |
1090 | if (force) | |
1091 | break; | |
1092 | /* fall through */ | |
02bee89e | 1093 | case V4L2_CID_TUNE_POWER_LEVEL: |
03aa1bcd HV |
1094 | ret = si4713_tx_tune_power(sdev, |
1095 | sdev->tune_pwr_level->val, sdev->tune_ant_cap->val); | |
1096 | if (!ret) { | |
1097 | /* Make sure we don't set this twice */ | |
1098 | sdev->tune_ant_cap->is_new = false; | |
1099 | sdev->tune_pwr_level->is_new = false; | |
1100 | } | |
02bee89e | 1101 | break; |
02bee89e | 1102 | |
03aa1bcd HV |
1103 | default: |
1104 | ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit, | |
1105 | &mask, &property, &mul, &table, &size); | |
1106 | if (ret < 0) | |
1107 | break; | |
1108 | ||
1109 | val = ctrl->val; | |
1110 | if (mul) { | |
1111 | val = val / mul; | |
1112 | } else if (table) { | |
1113 | ret = usecs_to_dev(val, table, size); | |
1114 | if (ret < 0) | |
1115 | break; | |
1116 | val = ret; | |
1117 | ret = 0; | |
1118 | } | |
02bee89e | 1119 | |
03aa1bcd HV |
1120 | if (mask) { |
1121 | ret = si4713_read_property(sdev, property, &val); | |
1122 | if (ret < 0) | |
1123 | break; | |
1124 | val = set_bits(val, ctrl->val, bit, mask); | |
1125 | } | |
02bee89e | 1126 | |
03aa1bcd HV |
1127 | ret = si4713_write_property(sdev, property, val); |
1128 | if (ret < 0) | |
1129 | break; | |
1130 | if (mask) | |
1131 | val = ctrl->val; | |
1132 | break; | |
02bee89e | 1133 | } |
02bee89e EV |
1134 | } |
1135 | ||
03aa1bcd | 1136 | return ret; |
02bee89e EV |
1137 | } |
1138 | ||
1139 | /* si4713_ioctl - deal with private ioctls (only rnl for now) */ | |
0dec8688 | 1140 | static long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) |
02bee89e EV |
1141 | { |
1142 | struct si4713_device *sdev = to_si4713_device(sd); | |
1143 | struct si4713_rnl *rnl = arg; | |
1144 | u16 frequency; | |
1145 | int rval = 0; | |
1146 | ||
1147 | if (!arg) | |
1148 | return -EINVAL; | |
1149 | ||
02bee89e EV |
1150 | switch (cmd) { |
1151 | case SI4713_IOC_MEASURE_RNL: | |
1152 | frequency = v4l2_to_si4713(rnl->frequency); | |
1153 | ||
1154 | if (sdev->power_state) { | |
1155 | /* Set desired measurement frequency */ | |
1156 | rval = si4713_tx_tune_measure(sdev, frequency, 0); | |
1157 | if (rval < 0) | |
55b2a312 | 1158 | return rval; |
02bee89e EV |
1159 | /* get results from tune status */ |
1160 | rval = si4713_update_tune_status(sdev); | |
1161 | if (rval < 0) | |
55b2a312 | 1162 | return rval; |
02bee89e EV |
1163 | } |
1164 | rnl->rnl = sdev->tune_rnl; | |
1165 | break; | |
1166 | ||
1167 | default: | |
1168 | /* nothing */ | |
1169 | rval = -ENOIOCTLCMD; | |
1170 | } | |
1171 | ||
02bee89e EV |
1172 | return rval; |
1173 | } | |
1174 | ||
02bee89e EV |
1175 | /* si4713_g_modulator - get modulator attributes */ |
1176 | static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) | |
1177 | { | |
1178 | struct si4713_device *sdev = to_si4713_device(sd); | |
1179 | int rval = 0; | |
1180 | ||
55b2a312 HV |
1181 | if (!sdev) |
1182 | return -ENODEV; | |
02bee89e | 1183 | |
55b2a312 HV |
1184 | if (vm->index > 0) |
1185 | return -EINVAL; | |
02bee89e EV |
1186 | |
1187 | strncpy(vm->name, "FM Modulator", 32); | |
1188 | vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW | | |
cb0ed222 | 1189 | V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS; |
02bee89e EV |
1190 | |
1191 | /* Report current frequency range limits */ | |
1192 | vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW); | |
1193 | vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH); | |
1194 | ||
02bee89e EV |
1195 | if (sdev->power_state) { |
1196 | u32 comp_en = 0; | |
1197 | ||
1198 | rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, | |
1199 | &comp_en); | |
1200 | if (rval < 0) | |
55b2a312 | 1201 | return rval; |
02bee89e EV |
1202 | |
1203 | sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); | |
02bee89e EV |
1204 | } |
1205 | ||
1206 | /* Report current audio mode: mono or stereo */ | |
1207 | if (sdev->stereo) | |
1208 | vm->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1209 | else | |
1210 | vm->txsubchans = V4L2_TUNER_SUB_MONO; | |
1211 | ||
1212 | /* Report rds feature status */ | |
03aa1bcd | 1213 | if (sdev->rds_enabled) |
02bee89e EV |
1214 | vm->txsubchans |= V4L2_TUNER_SUB_RDS; |
1215 | else | |
1216 | vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; | |
1217 | ||
02bee89e EV |
1218 | return rval; |
1219 | } | |
1220 | ||
1221 | /* si4713_s_modulator - set modulator attributes */ | |
3f70e1f5 | 1222 | static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *vm) |
02bee89e EV |
1223 | { |
1224 | struct si4713_device *sdev = to_si4713_device(sd); | |
1225 | int rval = 0; | |
1226 | u16 stereo, rds; | |
1227 | u32 p; | |
1228 | ||
a65f3159 HV |
1229 | if (!sdev) |
1230 | return -ENODEV; | |
02bee89e | 1231 | |
a65f3159 HV |
1232 | if (vm->index > 0) |
1233 | return -EINVAL; | |
02bee89e EV |
1234 | |
1235 | /* Set audio mode: mono or stereo */ | |
1236 | if (vm->txsubchans & V4L2_TUNER_SUB_STEREO) | |
1237 | stereo = 1; | |
1238 | else if (vm->txsubchans & V4L2_TUNER_SUB_MONO) | |
1239 | stereo = 0; | |
1240 | else | |
a65f3159 | 1241 | return -EINVAL; |
02bee89e EV |
1242 | |
1243 | rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS); | |
1244 | ||
02bee89e EV |
1245 | if (sdev->power_state) { |
1246 | rval = si4713_read_property(sdev, | |
1247 | SI4713_TX_COMPONENT_ENABLE, &p); | |
1248 | if (rval < 0) | |
55b2a312 | 1249 | return rval; |
02bee89e EV |
1250 | |
1251 | p = set_bits(p, stereo, 1, 1 << 1); | |
1252 | p = set_bits(p, rds, 2, 1 << 2); | |
1253 | ||
1254 | rval = si4713_write_property(sdev, | |
1255 | SI4713_TX_COMPONENT_ENABLE, p); | |
1256 | if (rval < 0) | |
55b2a312 | 1257 | return rval; |
02bee89e EV |
1258 | } |
1259 | ||
1260 | sdev->stereo = stereo; | |
03aa1bcd | 1261 | sdev->rds_enabled = rds; |
02bee89e | 1262 | |
02bee89e EV |
1263 | return rval; |
1264 | } | |
1265 | ||
1266 | /* si4713_g_frequency - get tuner or modulator radio frequency */ | |
1267 | static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
1268 | { | |
1269 | struct si4713_device *sdev = to_si4713_device(sd); | |
1270 | int rval = 0; | |
1271 | ||
b387754d HV |
1272 | if (f->tuner) |
1273 | return -EINVAL; | |
02bee89e | 1274 | |
02bee89e EV |
1275 | if (sdev->power_state) { |
1276 | u16 freq; | |
1277 | u8 p, a, n; | |
1278 | ||
1279 | rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); | |
1280 | if (rval < 0) | |
55b2a312 | 1281 | return rval; |
02bee89e EV |
1282 | |
1283 | sdev->frequency = freq; | |
1284 | } | |
1285 | ||
1286 | f->frequency = si4713_to_v4l2(sdev->frequency); | |
1287 | ||
02bee89e EV |
1288 | return rval; |
1289 | } | |
1290 | ||
1291 | /* si4713_s_frequency - set tuner or modulator radio frequency */ | |
b530a447 | 1292 | static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) |
02bee89e EV |
1293 | { |
1294 | struct si4713_device *sdev = to_si4713_device(sd); | |
1295 | int rval = 0; | |
1296 | u16 frequency = v4l2_to_si4713(f->frequency); | |
1297 | ||
b387754d HV |
1298 | if (f->tuner) |
1299 | return -EINVAL; | |
1300 | ||
02bee89e | 1301 | /* Check frequency range */ |
b387754d | 1302 | frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH); |
02bee89e | 1303 | |
02bee89e EV |
1304 | if (sdev->power_state) { |
1305 | rval = si4713_tx_tune_freq(sdev, frequency); | |
1306 | if (rval < 0) | |
55b2a312 | 1307 | return rval; |
02bee89e EV |
1308 | frequency = rval; |
1309 | rval = 0; | |
1310 | } | |
1311 | sdev->frequency = frequency; | |
02bee89e | 1312 | |
02bee89e EV |
1313 | return rval; |
1314 | } | |
1315 | ||
03aa1bcd HV |
1316 | static const struct v4l2_ctrl_ops si4713_ctrl_ops = { |
1317 | .s_ctrl = si4713_s_ctrl, | |
1318 | }; | |
1319 | ||
1320 | static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { | |
1321 | .ioctl = si4713_ioctl, | |
1322 | }; | |
1323 | ||
02bee89e EV |
1324 | static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = { |
1325 | .g_frequency = si4713_g_frequency, | |
1326 | .s_frequency = si4713_s_frequency, | |
1327 | .g_modulator = si4713_g_modulator, | |
1328 | .s_modulator = si4713_s_modulator, | |
1329 | }; | |
1330 | ||
1331 | static const struct v4l2_subdev_ops si4713_subdev_ops = { | |
1332 | .core = &si4713_subdev_core_ops, | |
1333 | .tuner = &si4713_subdev_tuner_ops, | |
1334 | }; | |
1335 | ||
1336 | /* | |
1337 | * I2C driver interface | |
1338 | */ | |
1339 | /* si4713_probe - probe for the device */ | |
1340 | static int si4713_probe(struct i2c_client *client, | |
1341 | const struct i2c_device_id *id) | |
1342 | { | |
1343 | struct si4713_device *sdev; | |
00df055a | 1344 | struct si4713_platform_data *pdata = client->dev.platform_data; |
03aa1bcd | 1345 | struct v4l2_ctrl_handler *hdl; |
00df055a | 1346 | int rval, i; |
02bee89e EV |
1347 | |
1348 | sdev = kzalloc(sizeof *sdev, GFP_KERNEL); | |
1349 | if (!sdev) { | |
1350 | dev_err(&client->dev, "Failed to alloc video device.\n"); | |
1351 | rval = -ENOMEM; | |
1352 | goto exit; | |
1353 | } | |
1354 | ||
00df055a JN |
1355 | sdev->gpio_reset = -1; |
1356 | if (pdata && gpio_is_valid(pdata->gpio_reset)) { | |
1357 | rval = gpio_request(pdata->gpio_reset, "si4713 reset"); | |
1358 | if (rval) { | |
1359 | dev_err(&client->dev, | |
1360 | "Failed to request gpio: %d\n", rval); | |
1361 | goto free_sdev; | |
1362 | } | |
1363 | sdev->gpio_reset = pdata->gpio_reset; | |
1364 | gpio_direction_output(sdev->gpio_reset, 0); | |
1365 | } | |
1366 | ||
1367 | for (i = 0; i < ARRAY_SIZE(sdev->supplies); i++) | |
1368 | sdev->supplies[i].supply = si4713_supply_names[i]; | |
1369 | ||
1370 | rval = regulator_bulk_get(&client->dev, ARRAY_SIZE(sdev->supplies), | |
1371 | sdev->supplies); | |
1372 | if (rval) { | |
1373 | dev_err(&client->dev, "Cannot get regulators: %d\n", rval); | |
1374 | goto free_gpio; | |
02bee89e EV |
1375 | } |
1376 | ||
1377 | v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops); | |
1378 | ||
02bee89e EV |
1379 | init_completion(&sdev->work); |
1380 | ||
03aa1bcd HV |
1381 | hdl = &sdev->ctrl_handler; |
1382 | v4l2_ctrl_handler_init(hdl, 20); | |
1383 | sdev->mute = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1384 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, DEFAULT_MUTE); | |
1385 | ||
1386 | sdev->rds_pi = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1387 | V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, DEFAULT_RDS_PI); | |
1388 | sdev->rds_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1389 | V4L2_CID_RDS_TX_PTY, 0, 31, 1, DEFAULT_RDS_PTY); | |
1390 | sdev->rds_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1391 | V4L2_CID_RDS_TX_DEVIATION, 0, MAX_RDS_DEVIATION, | |
1392 | 10, DEFAULT_RDS_DEVIATION); | |
1393 | /* | |
1394 | * Report step as 8. From RDS spec, psname | |
1395 | * should be 8. But there are receivers which scroll strings | |
1396 | * sized as 8xN. | |
1397 | */ | |
1398 | sdev->rds_ps_name = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1399 | V4L2_CID_RDS_TX_PS_NAME, 0, MAX_RDS_PS_NAME, 8, 0); | |
1400 | /* | |
1401 | * Report step as 32 (2A block). From RDS spec, | |
1402 | * radio text should be 32 for 2A block. But there are receivers | |
1403 | * which scroll strings sized as 32xN. Setting default to 32. | |
1404 | */ | |
1405 | sdev->rds_radio_text = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1406 | V4L2_CID_RDS_TX_RADIO_TEXT, 0, MAX_RDS_RADIO_TEXT, 32, 0); | |
1407 | ||
1408 | sdev->limiter_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1409 | V4L2_CID_AUDIO_LIMITER_ENABLED, 0, 1, 1, 1); | |
1410 | sdev->limiter_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1411 | V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, 250, | |
1412 | MAX_LIMITER_RELEASE_TIME, 10, DEFAULT_LIMITER_RTIME); | |
1413 | sdev->limiter_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1414 | V4L2_CID_AUDIO_LIMITER_DEVIATION, 0, | |
1415 | MAX_LIMITER_DEVIATION, 10, DEFAULT_LIMITER_DEV); | |
1416 | ||
1417 | sdev->compression_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1418 | V4L2_CID_AUDIO_COMPRESSION_ENABLED, 0, 1, 1, 1); | |
1419 | sdev->compression_gain = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1420 | V4L2_CID_AUDIO_COMPRESSION_GAIN, 0, MAX_ACOMP_GAIN, 1, | |
1421 | DEFAULT_ACOMP_GAIN); | |
1422 | sdev->compression_threshold = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1423 | V4L2_CID_AUDIO_COMPRESSION_THRESHOLD, MIN_ACOMP_THRESHOLD, | |
1424 | MAX_ACOMP_THRESHOLD, 1, | |
1425 | DEFAULT_ACOMP_THRESHOLD); | |
1426 | sdev->compression_attack_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1427 | V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, 0, | |
1428 | MAX_ACOMP_ATTACK_TIME, 500, DEFAULT_ACOMP_ATIME); | |
1429 | sdev->compression_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1430 | V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, 100000, | |
1431 | MAX_ACOMP_RELEASE_TIME, 100000, DEFAULT_ACOMP_RTIME); | |
1432 | ||
1433 | sdev->pilot_tone_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1434 | V4L2_CID_PILOT_TONE_ENABLED, 0, 1, 1, 1); | |
1435 | sdev->pilot_tone_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1436 | V4L2_CID_PILOT_TONE_DEVIATION, 0, MAX_PILOT_DEVIATION, | |
1437 | 10, DEFAULT_PILOT_DEVIATION); | |
1438 | sdev->pilot_tone_freq = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1439 | V4L2_CID_PILOT_TONE_FREQUENCY, 0, MAX_PILOT_FREQUENCY, | |
1440 | 1, DEFAULT_PILOT_FREQUENCY); | |
1441 | ||
1442 | sdev->tune_preemphasis = v4l2_ctrl_new_std_menu(hdl, &si4713_ctrl_ops, | |
1443 | V4L2_CID_TUNE_PREEMPHASIS, | |
1444 | V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS); | |
1445 | sdev->tune_pwr_level = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1446 | V4L2_CID_TUNE_POWER_LEVEL, 0, 120, 1, DEFAULT_POWER_LEVEL); | |
1447 | sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1448 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, 191, 1, 0); | |
1449 | ||
1450 | if (hdl->error) { | |
1451 | rval = hdl->error; | |
1452 | goto free_ctrls; | |
1453 | } | |
1454 | v4l2_ctrl_cluster(20, &sdev->mute); | |
1455 | sdev->sd.ctrl_handler = hdl; | |
1456 | ||
02bee89e EV |
1457 | if (client->irq) { |
1458 | rval = request_irq(client->irq, | |
0798ec69 | 1459 | si4713_handler, IRQF_TRIGGER_FALLING, |
02bee89e EV |
1460 | client->name, sdev); |
1461 | if (rval < 0) { | |
1462 | v4l2_err(&sdev->sd, "Could not request IRQ\n"); | |
00df055a | 1463 | goto put_reg; |
02bee89e EV |
1464 | } |
1465 | v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n"); | |
1466 | } else { | |
1467 | v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n"); | |
1468 | } | |
1469 | ||
1470 | rval = si4713_initialize(sdev); | |
1471 | if (rval < 0) { | |
1472 | v4l2_err(&sdev->sd, "Failed to probe device information.\n"); | |
1473 | goto free_irq; | |
1474 | } | |
1475 | ||
1476 | return 0; | |
1477 | ||
1478 | free_irq: | |
1479 | if (client->irq) | |
1480 | free_irq(client->irq, sdev); | |
03aa1bcd HV |
1481 | free_ctrls: |
1482 | v4l2_ctrl_handler_free(hdl); | |
00df055a JN |
1483 | put_reg: |
1484 | regulator_bulk_free(ARRAY_SIZE(sdev->supplies), sdev->supplies); | |
1485 | free_gpio: | |
1486 | if (gpio_is_valid(sdev->gpio_reset)) | |
1487 | gpio_free(sdev->gpio_reset); | |
02bee89e EV |
1488 | free_sdev: |
1489 | kfree(sdev); | |
1490 | exit: | |
1491 | return rval; | |
1492 | } | |
1493 | ||
1494 | /* si4713_remove - remove the device */ | |
1495 | static int si4713_remove(struct i2c_client *client) | |
1496 | { | |
1497 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1498 | struct si4713_device *sdev = to_si4713_device(sd); | |
1499 | ||
1500 | if (sdev->power_state) | |
1501 | si4713_set_power_state(sdev, POWER_DOWN); | |
1502 | ||
1503 | if (client->irq > 0) | |
1504 | free_irq(client->irq, sdev); | |
1505 | ||
1506 | v4l2_device_unregister_subdev(sd); | |
03aa1bcd | 1507 | v4l2_ctrl_handler_free(sd->ctrl_handler); |
00df055a JN |
1508 | regulator_bulk_free(ARRAY_SIZE(sdev->supplies), sdev->supplies); |
1509 | if (gpio_is_valid(sdev->gpio_reset)) | |
1510 | gpio_free(sdev->gpio_reset); | |
02bee89e EV |
1511 | kfree(sdev); |
1512 | ||
1513 | return 0; | |
1514 | } | |
1515 | ||
1516 | /* si4713_i2c_driver - i2c driver interface */ | |
1517 | static const struct i2c_device_id si4713_id[] = { | |
1518 | { "si4713" , 0 }, | |
1519 | { }, | |
1520 | }; | |
1521 | MODULE_DEVICE_TABLE(i2c, si4713_id); | |
1522 | ||
1523 | static struct i2c_driver si4713_i2c_driver = { | |
1524 | .driver = { | |
1525 | .name = "si4713", | |
1526 | }, | |
1527 | .probe = si4713_probe, | |
1528 | .remove = si4713_remove, | |
1529 | .id_table = si4713_id, | |
1530 | }; | |
1531 | ||
c6e8d86f | 1532 | module_i2c_driver(si4713_i2c_driver); |