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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 | 29 | #include <linux/gpio.h> |
7a707b89 | 30 | #include <linux/module.h> |
02bee89e EV |
31 | #include <media/v4l2-device.h> |
32 | #include <media/v4l2-ioctl.h> | |
33 | #include <media/v4l2-common.h> | |
34 | ||
7391232e | 35 | #include "si4713.h" |
02bee89e EV |
36 | |
37 | /* module parameters */ | |
38 | static int debug; | |
39 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
40 | MODULE_PARM_DESC(debug, "Debug level (0 - 2)"); | |
41 | ||
42 | MODULE_LICENSE("GPL"); | |
43 | MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>"); | |
44 | MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter"); | |
45 | MODULE_VERSION("0.0.1"); | |
46 | ||
47 | #define DEFAULT_RDS_PI 0x00 | |
48 | #define DEFAULT_RDS_PTY 0x00 | |
02bee89e EV |
49 | #define DEFAULT_RDS_DEVIATION 0x00C8 |
50 | #define DEFAULT_RDS_PS_REPEAT_COUNT 0x0003 | |
51 | #define DEFAULT_LIMITER_RTIME 0x1392 | |
52 | #define DEFAULT_LIMITER_DEV 0x102CA | |
9ca33ccd | 53 | #define DEFAULT_PILOT_FREQUENCY 0x4A38 |
02bee89e EV |
54 | #define DEFAULT_PILOT_DEVIATION 0x1A5E |
55 | #define DEFAULT_ACOMP_ATIME 0x0000 | |
56 | #define DEFAULT_ACOMP_RTIME 0xF4240L | |
57 | #define DEFAULT_ACOMP_GAIN 0x0F | |
9ca33ccd | 58 | #define DEFAULT_ACOMP_THRESHOLD (-0x28) |
02bee89e EV |
59 | #define DEFAULT_MUTE 0x01 |
60 | #define DEFAULT_POWER_LEVEL 88 | |
61 | #define DEFAULT_FREQUENCY 8800 | |
62 | #define DEFAULT_PREEMPHASIS FMPE_EU | |
63 | #define DEFAULT_TUNE_RNL 0xFF | |
64 | ||
65 | #define to_si4713_device(sd) container_of(sd, struct si4713_device, sd) | |
66 | ||
67 | /* frequency domain transformation (using times 10 to avoid floats) */ | |
68 | #define FREQDEV_UNIT 100000 | |
69 | #define FREQV4L2_MULTI 625 | |
70 | #define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI) | |
71 | #define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT) | |
72 | #define FREQ_RANGE_LOW 7600 | |
73 | #define FREQ_RANGE_HIGH 10800 | |
74 | ||
75 | #define MAX_ARGS 7 | |
76 | ||
77 | #define RDS_BLOCK 8 | |
78 | #define RDS_BLOCK_CLEAR 0x03 | |
79 | #define RDS_BLOCK_LOAD 0x04 | |
80 | #define RDS_RADIOTEXT_2A 0x20 | |
81 | #define RDS_RADIOTEXT_BLK_SIZE 4 | |
82 | #define RDS_RADIOTEXT_INDEX_MAX 0x0F | |
83 | #define RDS_CARRIAGE_RETURN 0x0D | |
84 | ||
85 | #define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0)) | |
86 | ||
87 | #define get_status_bit(p, b, m) (((p) & (m)) >> (b)) | |
88 | #define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b))) | |
89 | ||
90 | #define ATTACK_TIME_UNIT 500 | |
91 | ||
92 | #define POWER_OFF 0x00 | |
93 | #define POWER_ON 0x01 | |
94 | ||
95 | #define msb(x) ((u8)((u16) x >> 8)) | |
96 | #define lsb(x) ((u8)((u16) x & 0x00FF)) | |
97 | #define compose_u16(msb, lsb) (((u16)msb << 8) | lsb) | |
98 | #define check_command_failed(status) (!(status & SI4713_CTS) || \ | |
99 | (status & SI4713_ERR)) | |
100 | /* mute definition */ | |
101 | #define set_mute(p) ((p & 1) | ((p & 1) << 1)); | |
02bee89e EV |
102 | |
103 | #ifdef DEBUG | |
104 | #define DBG_BUFFER(device, message, buffer, size) \ | |
105 | { \ | |
106 | int i; \ | |
107 | char str[(size)*5]; \ | |
108 | for (i = 0; i < size; i++) \ | |
109 | sprintf(str + i * 5, " 0x%02x", buffer[i]); \ | |
110 | v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \ | |
111 | } | |
112 | #else | |
113 | #define DBG_BUFFER(device, message, buffer, size) | |
114 | #endif | |
115 | ||
116 | /* | |
117 | * Values for limiter release time (sorted by second column) | |
118 | * device release | |
119 | * value time (us) | |
120 | */ | |
121 | static long limiter_times[] = { | |
122 | 2000, 250, | |
123 | 1000, 500, | |
124 | 510, 1000, | |
125 | 255, 2000, | |
126 | 170, 3000, | |
127 | 127, 4020, | |
128 | 102, 5010, | |
129 | 85, 6020, | |
130 | 73, 7010, | |
131 | 64, 7990, | |
132 | 57, 8970, | |
133 | 51, 10030, | |
134 | 25, 20470, | |
135 | 17, 30110, | |
136 | 13, 39380, | |
137 | 10, 51190, | |
138 | 8, 63690, | |
139 | 7, 73140, | |
140 | 6, 85330, | |
141 | 5, 102390, | |
142 | }; | |
143 | ||
144 | /* | |
145 | * Values for audio compression release time (sorted by second column) | |
146 | * device release | |
147 | * value time (us) | |
148 | */ | |
149 | static unsigned long acomp_rtimes[] = { | |
150 | 0, 100000, | |
151 | 1, 200000, | |
152 | 2, 350000, | |
153 | 3, 525000, | |
154 | 4, 1000000, | |
155 | }; | |
156 | ||
157 | /* | |
158 | * Values for preemphasis (sorted by second column) | |
159 | * device preemphasis | |
160 | * value value (v4l2) | |
161 | */ | |
162 | static unsigned long preemphasis_values[] = { | |
163 | FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED, | |
164 | FMPE_EU, V4L2_PREEMPHASIS_50_uS, | |
165 | FMPE_USA, V4L2_PREEMPHASIS_75_uS, | |
166 | }; | |
167 | ||
168 | static int usecs_to_dev(unsigned long usecs, unsigned long const array[], | |
169 | int size) | |
170 | { | |
171 | int i; | |
172 | int rval = -EINVAL; | |
173 | ||
174 | for (i = 0; i < size / 2; i++) | |
175 | if (array[(i * 2) + 1] >= usecs) { | |
176 | rval = array[i * 2]; | |
177 | break; | |
178 | } | |
179 | ||
180 | return rval; | |
181 | } | |
182 | ||
02bee89e EV |
183 | /* si4713_handler: IRQ handler, just complete work */ |
184 | static irqreturn_t si4713_handler(int irq, void *dev) | |
185 | { | |
186 | struct si4713_device *sdev = dev; | |
187 | ||
188 | v4l2_dbg(2, debug, &sdev->sd, | |
189 | "%s: sending signal to completion work.\n", __func__); | |
190 | complete(&sdev->work); | |
191 | ||
192 | return IRQ_HANDLED; | |
193 | } | |
194 | ||
195 | /* | |
196 | * si4713_send_command - sends a command to si4713 and waits its response | |
197 | * @sdev: si4713_device structure for the device we are communicating | |
198 | * @command: command id | |
199 | * @args: command arguments we are sending (up to 7) | |
200 | * @argn: actual size of @args | |
201 | * @response: buffer to place the expected response from the device (up to 15) | |
202 | * @respn: actual size of @response | |
203 | * @usecs: amount of time to wait before reading the response (in usecs) | |
204 | */ | |
205 | static int si4713_send_command(struct si4713_device *sdev, const u8 command, | |
206 | const u8 args[], const int argn, | |
207 | u8 response[], const int respn, const int usecs) | |
208 | { | |
209 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
5173332c | 210 | unsigned long until_jiffies; |
02bee89e EV |
211 | u8 data1[MAX_ARGS + 1]; |
212 | int err; | |
213 | ||
214 | if (!client->adapter) | |
215 | return -ENODEV; | |
216 | ||
217 | /* First send the command and its arguments */ | |
218 | data1[0] = command; | |
219 | memcpy(data1 + 1, args, argn); | |
220 | DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1); | |
221 | ||
222 | err = i2c_master_send(client, data1, argn + 1); | |
223 | if (err != argn + 1) { | |
224 | v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n", | |
225 | command); | |
5173332c | 226 | return err < 0 ? err : -EIO; |
02bee89e EV |
227 | } |
228 | ||
5173332c DR |
229 | until_jiffies = jiffies + usecs_to_jiffies(usecs) + 1; |
230 | ||
02bee89e | 231 | /* Wait response from interrupt */ |
5173332c DR |
232 | if (client->irq) { |
233 | if (!wait_for_completion_timeout(&sdev->work, | |
02bee89e | 234 | usecs_to_jiffies(usecs) + 1)) |
5173332c | 235 | v4l2_warn(&sdev->sd, |
02bee89e EV |
236 | "(%s) Device took too much time to answer.\n", |
237 | __func__); | |
02bee89e EV |
238 | } |
239 | ||
5173332c DR |
240 | do { |
241 | err = i2c_master_recv(client, response, respn); | |
242 | if (err != respn) { | |
243 | v4l2_err(&sdev->sd, | |
244 | "Error %d while reading response for command 0x%02x\n", | |
245 | err, command); | |
246 | return err < 0 ? err : -EIO; | |
247 | } | |
02bee89e | 248 | |
5173332c DR |
249 | DBG_BUFFER(&sdev->sd, "Response", response, respn); |
250 | if (!check_command_failed(response[0])) | |
251 | return 0; | |
252 | ||
253 | if (client->irq) | |
254 | return -EBUSY; | |
cb15da36 HV |
255 | if (usecs <= 1000) |
256 | usleep_range(usecs, 1000); | |
257 | else | |
258 | usleep_range(1000, 2000); | |
259 | } while (time_is_after_jiffies(until_jiffies)); | |
5173332c DR |
260 | |
261 | return -EBUSY; | |
02bee89e EV |
262 | } |
263 | ||
264 | /* | |
265 | * si4713_read_property - reads a si4713 property | |
266 | * @sdev: si4713_device structure for the device we are communicating | |
267 | * @prop: property identification number | |
268 | * @pv: property value to be returned on success | |
269 | */ | |
270 | static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv) | |
271 | { | |
272 | int err; | |
273 | u8 val[SI4713_GET_PROP_NRESP]; | |
274 | /* | |
9ca33ccd HV |
275 | * .First byte = 0 |
276 | * .Second byte = property's MSB | |
277 | * .Third byte = property's LSB | |
02bee89e EV |
278 | */ |
279 | const u8 args[SI4713_GET_PROP_NARGS] = { | |
280 | 0x00, | |
281 | msb(prop), | |
282 | lsb(prop), | |
283 | }; | |
284 | ||
285 | err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY, | |
286 | args, ARRAY_SIZE(args), val, | |
287 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
288 | ||
289 | if (err < 0) | |
290 | return err; | |
291 | ||
292 | *pv = compose_u16(val[2], val[3]); | |
293 | ||
294 | v4l2_dbg(1, debug, &sdev->sd, | |
295 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
296 | __func__, prop, *pv, val[0]); | |
297 | ||
298 | return err; | |
299 | } | |
300 | ||
301 | /* | |
302 | * si4713_write_property - modifies a si4713 property | |
303 | * @sdev: si4713_device structure for the device we are communicating | |
304 | * @prop: property identification number | |
305 | * @val: new value for that property | |
306 | */ | |
307 | static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val) | |
308 | { | |
309 | int rval; | |
310 | u8 resp[SI4713_SET_PROP_NRESP]; | |
311 | /* | |
9ca33ccd HV |
312 | * .First byte = 0 |
313 | * .Second byte = property's MSB | |
314 | * .Third byte = property's LSB | |
315 | * .Fourth byte = value's MSB | |
316 | * .Fifth byte = value's LSB | |
02bee89e EV |
317 | */ |
318 | const u8 args[SI4713_SET_PROP_NARGS] = { | |
319 | 0x00, | |
320 | msb(prop), | |
321 | lsb(prop), | |
322 | msb(val), | |
323 | lsb(val), | |
324 | }; | |
325 | ||
326 | rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY, | |
327 | args, ARRAY_SIZE(args), | |
328 | resp, ARRAY_SIZE(resp), | |
329 | DEFAULT_TIMEOUT); | |
330 | ||
331 | if (rval < 0) | |
332 | return rval; | |
333 | ||
334 | v4l2_dbg(1, debug, &sdev->sd, | |
335 | "%s: property=0x%02x value=0x%02x status=0x%02x\n", | |
336 | __func__, prop, val, resp[0]); | |
337 | ||
338 | /* | |
339 | * As there is no command response for SET_PROPERTY, | |
340 | * wait Tcomp time to finish before proceed, in order | |
341 | * to have property properly set. | |
342 | */ | |
343 | msleep(TIMEOUT_SET_PROPERTY); | |
344 | ||
345 | return rval; | |
346 | } | |
347 | ||
348 | /* | |
349 | * si4713_powerup - Powers the device up | |
350 | * @sdev: si4713_device structure for the device we are communicating | |
351 | */ | |
352 | static int si4713_powerup(struct si4713_device *sdev) | |
353 | { | |
5173332c | 354 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); |
02bee89e EV |
355 | int err; |
356 | u8 resp[SI4713_PWUP_NRESP]; | |
357 | /* | |
9ca33ccd HV |
358 | * .First byte = Enabled interrupts and boot function |
359 | * .Second byte = Input operation mode | |
02bee89e | 360 | */ |
5173332c DR |
361 | u8 args[SI4713_PWUP_NARGS] = { |
362 | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX, | |
02bee89e EV |
363 | SI4713_PWUP_OPMOD_ANALOG, |
364 | }; | |
365 | ||
366 | if (sdev->power_state) | |
367 | return 0; | |
368 | ||
cc6d618f DR |
369 | if (sdev->supplies) { |
370 | err = regulator_bulk_enable(sdev->supplies, sdev->supply_data); | |
371 | if (err) { | |
372 | v4l2_err(&sdev->sd, "Failed to enable supplies: %d\n", err); | |
373 | return err; | |
374 | } | |
00df055a JN |
375 | } |
376 | if (gpio_is_valid(sdev->gpio_reset)) { | |
377 | udelay(50); | |
378 | gpio_set_value(sdev->gpio_reset, 1); | |
379 | } | |
380 | ||
5173332c DR |
381 | if (client->irq) |
382 | args[0] |= SI4713_PWUP_CTSIEN; | |
383 | ||
02bee89e EV |
384 | err = si4713_send_command(sdev, SI4713_CMD_POWER_UP, |
385 | args, ARRAY_SIZE(args), | |
386 | resp, ARRAY_SIZE(resp), | |
387 | TIMEOUT_POWER_UP); | |
388 | ||
389 | if (!err) { | |
390 | v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n", | |
391 | resp[0]); | |
392 | v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n"); | |
393 | sdev->power_state = POWER_ON; | |
394 | ||
5173332c DR |
395 | if (client->irq) |
396 | err = si4713_write_property(sdev, SI4713_GPO_IEN, | |
02bee89e | 397 | SI4713_STC_INT | SI4713_CTS); |
cc6d618f DR |
398 | return err; |
399 | } | |
400 | if (gpio_is_valid(sdev->gpio_reset)) | |
401 | gpio_set_value(sdev->gpio_reset, 0); | |
402 | if (sdev->supplies) { | |
403 | err = regulator_bulk_disable(sdev->supplies, sdev->supply_data); | |
00df055a JN |
404 | if (err) |
405 | v4l2_err(&sdev->sd, | |
406 | "Failed to disable supplies: %d\n", err); | |
02bee89e EV |
407 | } |
408 | ||
409 | return err; | |
410 | } | |
411 | ||
412 | /* | |
413 | * si4713_powerdown - Powers the device down | |
414 | * @sdev: si4713_device structure for the device we are communicating | |
415 | */ | |
416 | static int si4713_powerdown(struct si4713_device *sdev) | |
417 | { | |
418 | int err; | |
419 | u8 resp[SI4713_PWDN_NRESP]; | |
420 | ||
421 | if (!sdev->power_state) | |
422 | return 0; | |
423 | ||
424 | err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN, | |
425 | NULL, 0, | |
426 | resp, ARRAY_SIZE(resp), | |
427 | DEFAULT_TIMEOUT); | |
428 | ||
429 | if (!err) { | |
430 | v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", | |
431 | resp[0]); | |
432 | v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); | |
00df055a JN |
433 | if (gpio_is_valid(sdev->gpio_reset)) |
434 | gpio_set_value(sdev->gpio_reset, 0); | |
cc6d618f DR |
435 | if (sdev->supplies) { |
436 | err = regulator_bulk_disable(sdev->supplies, | |
437 | sdev->supply_data); | |
438 | if (err) | |
439 | v4l2_err(&sdev->sd, | |
440 | "Failed to disable supplies: %d\n", err); | |
441 | } | |
02bee89e EV |
442 | sdev->power_state = POWER_OFF; |
443 | } | |
444 | ||
445 | return err; | |
446 | } | |
447 | ||
448 | /* | |
449 | * si4713_checkrev - Checks if we are treating a device with the correct rev. | |
450 | * @sdev: si4713_device structure for the device we are communicating | |
451 | */ | |
452 | static int si4713_checkrev(struct si4713_device *sdev) | |
453 | { | |
454 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); | |
455 | int rval; | |
456 | u8 resp[SI4713_GETREV_NRESP]; | |
457 | ||
02bee89e EV |
458 | rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, |
459 | NULL, 0, | |
460 | resp, ARRAY_SIZE(resp), | |
461 | DEFAULT_TIMEOUT); | |
462 | ||
463 | if (rval < 0) | |
55b2a312 | 464 | return rval; |
02bee89e EV |
465 | |
466 | if (resp[1] == SI4713_PRODUCT_NUMBER) { | |
467 | v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n", | |
468 | client->addr << 1, client->adapter->name); | |
469 | } else { | |
b2c6eedb | 470 | v4l2_err(&sdev->sd, "Invalid product number 0x%X\n", resp[1]); |
02bee89e EV |
471 | rval = -EINVAL; |
472 | } | |
02bee89e EV |
473 | return rval; |
474 | } | |
475 | ||
476 | /* | |
25985edc | 477 | * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful |
02bee89e EV |
478 | * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS |
479 | * @sdev: si4713_device structure for the device we are communicating | |
480 | * @usecs: timeout to wait for STC interrupt signal | |
481 | */ | |
482 | static int si4713_wait_stc(struct si4713_device *sdev, const int usecs) | |
483 | { | |
5173332c | 484 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); |
02bee89e | 485 | u8 resp[SI4713_GET_STATUS_NRESP]; |
5173332c DR |
486 | unsigned long start_jiffies = jiffies; |
487 | int err; | |
02bee89e | 488 | |
5173332c DR |
489 | if (client->irq && |
490 | !wait_for_completion_timeout(&sdev->work, usecs_to_jiffies(usecs) + 1)) | |
02bee89e | 491 | v4l2_warn(&sdev->sd, |
5173332c DR |
492 | "(%s) Device took too much time to answer.\n", __func__); |
493 | ||
494 | for (;;) { | |
495 | /* Clear status bits */ | |
496 | err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS, | |
497 | NULL, 0, | |
498 | resp, ARRAY_SIZE(resp), | |
499 | DEFAULT_TIMEOUT); | |
500 | /* The USB device returns errors when it waits for the | |
501 | * STC bit to be set. Hence polling */ | |
502 | if (err >= 0) { | |
503 | v4l2_dbg(1, debug, &sdev->sd, | |
504 | "%s: status bits: 0x%02x\n", __func__, resp[0]); | |
505 | ||
506 | if (resp[0] & SI4713_STC_INT) | |
507 | return 0; | |
508 | } | |
509 | if (jiffies_to_usecs(jiffies - start_jiffies) > usecs) | |
510 | return err < 0 ? err : -EIO; | |
cb15da36 | 511 | /* We sleep here for 3-4 ms in order to avoid flooding the device |
5173332c DR |
512 | * with USB requests. The si4713 USB driver was developed |
513 | * by reverse engineering the Windows USB driver. The windows | |
514 | * driver also has a ~2.5 ms delay between responses. */ | |
cb15da36 | 515 | usleep_range(3000, 4000); |
5173332c | 516 | } |
02bee89e EV |
517 | } |
518 | ||
519 | /* | |
520 | * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning | |
9ca33ccd HV |
521 | * frequency between 76 and 108 MHz in 10 kHz units and |
522 | * steps of 50 kHz. | |
02bee89e EV |
523 | * @sdev: si4713_device structure for the device we are communicating |
524 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
525 | */ | |
526 | static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency) | |
527 | { | |
528 | int err; | |
529 | u8 val[SI4713_TXFREQ_NRESP]; | |
530 | /* | |
9ca33ccd HV |
531 | * .First byte = 0 |
532 | * .Second byte = frequency's MSB | |
533 | * .Third byte = frequency's LSB | |
02bee89e EV |
534 | */ |
535 | const u8 args[SI4713_TXFREQ_NARGS] = { | |
536 | 0x00, | |
537 | msb(frequency), | |
538 | lsb(frequency), | |
539 | }; | |
540 | ||
541 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ, | |
542 | args, ARRAY_SIZE(args), val, | |
543 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
544 | ||
545 | if (err < 0) | |
546 | return err; | |
547 | ||
548 | v4l2_dbg(1, debug, &sdev->sd, | |
549 | "%s: frequency=0x%02x status=0x%02x\n", __func__, | |
550 | frequency, val[0]); | |
551 | ||
552 | err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
553 | if (err < 0) | |
554 | return err; | |
555 | ||
556 | return compose_u16(args[1], args[2]); | |
557 | } | |
558 | ||
559 | /* | |
e26fa6dc | 560 | * si4713_tx_tune_power - Sets the RF voltage level between 88 and 120 dBuV in |
9ca33ccd HV |
561 | * 1 dB units. A value of 0x00 indicates off. The command |
562 | * also sets the antenna tuning capacitance. A value of 0 | |
563 | * indicates autotuning, and a value of 1 - 191 indicates | |
564 | * a manual override, which results in a tuning | |
565 | * capacitance of 0.25 pF x @antcap. | |
02bee89e | 566 | * @sdev: si4713_device structure for the device we are communicating |
e26fa6dc | 567 | * @power: tuning power (88 - 120 dBuV, unit/step 1 dB) |
02bee89e EV |
568 | * @antcap: value of antenna tuning capacitor (0 - 191) |
569 | */ | |
570 | static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power, | |
571 | u8 antcap) | |
572 | { | |
573 | int err; | |
574 | u8 val[SI4713_TXPWR_NRESP]; | |
575 | /* | |
9ca33ccd HV |
576 | * .First byte = 0 |
577 | * .Second byte = 0 | |
578 | * .Third byte = power | |
579 | * .Fourth byte = antcap | |
02bee89e | 580 | */ |
e26fa6dc | 581 | u8 args[SI4713_TXPWR_NARGS] = { |
02bee89e EV |
582 | 0x00, |
583 | 0x00, | |
584 | power, | |
585 | antcap, | |
586 | }; | |
587 | ||
e26fa6dc DR |
588 | /* Map power values 1-87 to MIN_POWER (88) */ |
589 | if (power > 0 && power < SI4713_MIN_POWER) | |
590 | args[2] = power = SI4713_MIN_POWER; | |
02bee89e EV |
591 | |
592 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER, | |
593 | args, ARRAY_SIZE(args), val, | |
594 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
595 | ||
596 | if (err < 0) | |
597 | return err; | |
598 | ||
599 | v4l2_dbg(1, debug, &sdev->sd, | |
600 | "%s: power=0x%02x antcap=0x%02x status=0x%02x\n", | |
601 | __func__, power, antcap, val[0]); | |
602 | ||
603 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER); | |
604 | } | |
605 | ||
606 | /* | |
607 | * si4713_tx_tune_measure - Enters receive mode and measures the received noise | |
9ca33ccd HV |
608 | * level in units of dBuV on the selected frequency. |
609 | * The Frequency must be between 76 and 108 MHz in 10 kHz | |
610 | * units and steps of 50 kHz. The command also sets the | |
611 | * antenna tuning capacitance. A value of 0 means | |
612 | * autotuning, and a value of 1 to 191 indicates manual | |
613 | * override. | |
02bee89e EV |
614 | * @sdev: si4713_device structure for the device we are communicating |
615 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) | |
616 | * @antcap: value of antenna tuning capacitor (0 - 191) | |
617 | */ | |
618 | static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency, | |
619 | u8 antcap) | |
620 | { | |
621 | int err; | |
622 | u8 val[SI4713_TXMEA_NRESP]; | |
623 | /* | |
9ca33ccd HV |
624 | * .First byte = 0 |
625 | * .Second byte = frequency's MSB | |
626 | * .Third byte = frequency's LSB | |
627 | * .Fourth byte = antcap | |
02bee89e EV |
628 | */ |
629 | const u8 args[SI4713_TXMEA_NARGS] = { | |
630 | 0x00, | |
631 | msb(frequency), | |
632 | lsb(frequency), | |
633 | antcap, | |
634 | }; | |
635 | ||
636 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
637 | ||
638 | if (antcap > SI4713_MAX_ANTCAP) | |
639 | return -EDOM; | |
640 | ||
641 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE, | |
642 | args, ARRAY_SIZE(args), val, | |
643 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
644 | ||
645 | if (err < 0) | |
646 | return err; | |
647 | ||
648 | v4l2_dbg(1, debug, &sdev->sd, | |
649 | "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n", | |
650 | __func__, frequency, antcap, val[0]); | |
651 | ||
652 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); | |
653 | } | |
654 | ||
655 | /* | |
656 | * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or | |
9ca33ccd HV |
657 | * tx_tune_power commands. This command return the current |
658 | * frequency, output voltage in dBuV, the antenna tunning | |
659 | * capacitance value and the received noise level. The | |
660 | * command also clears the stcint interrupt bit when the | |
661 | * first bit of its arguments is high. | |
02bee89e EV |
662 | * @sdev: si4713_device structure for the device we are communicating |
663 | * @intack: 0x01 to clear the seek/tune complete interrupt status indicator. | |
664 | * @frequency: returned frequency | |
665 | * @power: returned power | |
666 | * @antcap: returned antenna capacitance | |
667 | * @noise: returned noise level | |
668 | */ | |
669 | static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack, | |
670 | u16 *frequency, u8 *power, | |
671 | u8 *antcap, u8 *noise) | |
672 | { | |
673 | int err; | |
674 | u8 val[SI4713_TXSTATUS_NRESP]; | |
675 | /* | |
9ca33ccd | 676 | * .First byte = intack bit |
02bee89e EV |
677 | */ |
678 | const u8 args[SI4713_TXSTATUS_NARGS] = { | |
679 | intack & SI4713_INTACK_MASK, | |
680 | }; | |
681 | ||
682 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS, | |
683 | args, ARRAY_SIZE(args), val, | |
684 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
685 | ||
686 | if (!err) { | |
687 | v4l2_dbg(1, debug, &sdev->sd, | |
688 | "%s: status=0x%02x\n", __func__, val[0]); | |
689 | *frequency = compose_u16(val[2], val[3]); | |
690 | sdev->frequency = *frequency; | |
691 | *power = val[5]; | |
692 | *antcap = val[6]; | |
693 | *noise = val[7]; | |
694 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz " | |
695 | "(power %d, antcap %d, rnl %d)\n", __func__, | |
696 | *frequency, *power, *antcap, *noise); | |
697 | } | |
698 | ||
699 | return err; | |
700 | } | |
701 | ||
702 | /* | |
703 | * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer. | |
704 | * @sdev: si4713_device structure for the device we are communicating | |
705 | * @mode: the buffer operation mode. | |
706 | * @rdsb: RDS Block B | |
707 | * @rdsc: RDS Block C | |
708 | * @rdsd: RDS Block D | |
709 | * @cbleft: returns the number of available circular buffer blocks minus the | |
710 | * number of used circular buffer blocks. | |
711 | */ | |
712 | static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb, | |
713 | u16 rdsc, u16 rdsd, s8 *cbleft) | |
714 | { | |
715 | int err; | |
716 | u8 val[SI4713_RDSBUFF_NRESP]; | |
717 | ||
718 | const u8 args[SI4713_RDSBUFF_NARGS] = { | |
719 | mode & SI4713_RDSBUFF_MODE_MASK, | |
720 | msb(rdsb), | |
721 | lsb(rdsb), | |
722 | msb(rdsc), | |
723 | lsb(rdsc), | |
724 | msb(rdsd), | |
725 | lsb(rdsd), | |
726 | }; | |
727 | ||
728 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF, | |
729 | args, ARRAY_SIZE(args), val, | |
730 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
731 | ||
732 | if (!err) { | |
733 | v4l2_dbg(1, debug, &sdev->sd, | |
734 | "%s: status=0x%02x\n", __func__, val[0]); | |
735 | *cbleft = (s8)val[2] - val[3]; | |
736 | v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts" | |
737 | " 0x%02x cb avail: %d cb used %d fifo avail" | |
738 | " %d fifo used %d\n", __func__, val[1], | |
739 | val[2], val[3], val[4], val[5]); | |
740 | } | |
741 | ||
742 | return err; | |
743 | } | |
744 | ||
745 | /* | |
746 | * si4713_tx_rds_ps - Loads the program service buffer. | |
747 | * @sdev: si4713_device structure for the device we are communicating | |
748 | * @psid: program service id to be loaded. | |
749 | * @pschar: assumed 4 size char array to be loaded into the program service | |
750 | */ | |
751 | static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid, | |
752 | unsigned char *pschar) | |
753 | { | |
754 | int err; | |
755 | u8 val[SI4713_RDSPS_NRESP]; | |
756 | ||
757 | const u8 args[SI4713_RDSPS_NARGS] = { | |
758 | psid & SI4713_RDSPS_PSID_MASK, | |
759 | pschar[0], | |
760 | pschar[1], | |
761 | pschar[2], | |
762 | pschar[3], | |
763 | }; | |
764 | ||
765 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS, | |
766 | args, ARRAY_SIZE(args), val, | |
767 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); | |
768 | ||
769 | if (err < 0) | |
770 | return err; | |
771 | ||
772 | v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]); | |
773 | ||
774 | return err; | |
775 | } | |
776 | ||
777 | static int si4713_set_power_state(struct si4713_device *sdev, u8 value) | |
778 | { | |
02bee89e | 779 | if (value) |
55b2a312 HV |
780 | return si4713_powerup(sdev); |
781 | return si4713_powerdown(sdev); | |
02bee89e EV |
782 | } |
783 | ||
784 | static int si4713_set_mute(struct si4713_device *sdev, u16 mute) | |
785 | { | |
786 | int rval = 0; | |
787 | ||
788 | mute = set_mute(mute); | |
789 | ||
02bee89e EV |
790 | if (sdev->power_state) |
791 | rval = si4713_write_property(sdev, | |
792 | SI4713_TX_LINE_INPUT_MUTE, mute); | |
793 | ||
02bee89e EV |
794 | return rval; |
795 | } | |
796 | ||
797 | static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) | |
798 | { | |
799 | int rval = 0, i; | |
800 | u8 len = 0; | |
801 | ||
802 | /* We want to clear the whole thing */ | |
803 | if (!strlen(ps_name)) | |
804 | memset(ps_name, 0, MAX_RDS_PS_NAME + 1); | |
805 | ||
02bee89e EV |
806 | if (sdev->power_state) { |
807 | /* Write the new ps name and clear the padding */ | |
808 | for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) { | |
809 | rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)), | |
810 | ps_name + i); | |
811 | if (rval < 0) | |
55b2a312 | 812 | return rval; |
02bee89e EV |
813 | } |
814 | ||
815 | /* Setup the size to be sent */ | |
816 | if (strlen(ps_name)) | |
817 | len = strlen(ps_name) - 1; | |
818 | else | |
819 | len = 1; | |
820 | ||
821 | rval = si4713_write_property(sdev, | |
822 | SI4713_TX_RDS_PS_MESSAGE_COUNT, | |
823 | rds_ps_nblocks(len)); | |
824 | if (rval < 0) | |
55b2a312 | 825 | return rval; |
02bee89e EV |
826 | |
827 | rval = si4713_write_property(sdev, | |
828 | SI4713_TX_RDS_PS_REPEAT_COUNT, | |
829 | DEFAULT_RDS_PS_REPEAT_COUNT * 2); | |
830 | if (rval < 0) | |
55b2a312 | 831 | return rval; |
02bee89e EV |
832 | } |
833 | ||
02bee89e EV |
834 | return rval; |
835 | } | |
836 | ||
8aab72bb | 837 | static int si4713_set_rds_radio_text(struct si4713_device *sdev, const char *rt) |
02bee89e | 838 | { |
8aab72bb | 839 | static const char cr[RDS_RADIOTEXT_BLK_SIZE] = { RDS_CARRIAGE_RETURN, 0 }; |
02bee89e EV |
840 | int rval = 0, i; |
841 | u16 t_index = 0; | |
842 | u8 b_index = 0, cr_inserted = 0; | |
843 | s8 left; | |
844 | ||
02bee89e | 845 | if (!sdev->power_state) |
03aa1bcd | 846 | return rval; |
02bee89e EV |
847 | |
848 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); | |
849 | if (rval < 0) | |
55b2a312 | 850 | return rval; |
02bee89e EV |
851 | |
852 | if (!strlen(rt)) | |
03aa1bcd | 853 | return rval; |
02bee89e EV |
854 | |
855 | do { | |
856 | /* RDS spec says that if the last block isn't used, | |
857 | * then apply a carriage return | |
858 | */ | |
03aa1bcd | 859 | if (t_index < (RDS_RADIOTEXT_INDEX_MAX * RDS_RADIOTEXT_BLK_SIZE)) { |
02bee89e | 860 | for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { |
03aa1bcd HV |
861 | if (!rt[t_index + i] || |
862 | rt[t_index + i] == RDS_CARRIAGE_RETURN) { | |
8aab72bb | 863 | rt = cr; |
02bee89e EV |
864 | cr_inserted = 1; |
865 | break; | |
866 | } | |
867 | } | |
868 | } | |
869 | ||
870 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD, | |
871 | compose_u16(RDS_RADIOTEXT_2A, b_index++), | |
872 | compose_u16(rt[t_index], rt[t_index + 1]), | |
873 | compose_u16(rt[t_index + 2], rt[t_index + 3]), | |
874 | &left); | |
875 | if (rval < 0) | |
55b2a312 | 876 | return rval; |
02bee89e EV |
877 | |
878 | t_index += RDS_RADIOTEXT_BLK_SIZE; | |
879 | ||
880 | if (cr_inserted) | |
881 | break; | |
882 | } while (left > 0); | |
883 | ||
03aa1bcd HV |
884 | return rval; |
885 | } | |
886 | ||
887 | /* | |
888 | * si4713_update_tune_status - update properties from tx_tune_status | |
889 | * command. Must be called with sdev->mutex held. | |
890 | * @sdev: si4713_device structure for the device we are communicating | |
891 | */ | |
892 | static int si4713_update_tune_status(struct si4713_device *sdev) | |
893 | { | |
894 | int rval; | |
895 | u16 f = 0; | |
896 | u8 p = 0, a = 0, n = 0; | |
897 | ||
898 | rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n); | |
899 | ||
900 | if (rval < 0) | |
901 | goto exit; | |
902 | ||
903 | /* TODO: check that power_level and antenna_capacitor really are not | |
904 | changed by the hardware. If they are, then these controls should become | |
905 | volatiles. | |
906 | sdev->power_level = p; | |
907 | sdev->antenna_capacitor = a;*/ | |
908 | sdev->tune_rnl = n; | |
909 | ||
910 | exit: | |
02bee89e EV |
911 | return rval; |
912 | } | |
913 | ||
914 | static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, | |
03aa1bcd | 915 | s32 *bit, s32 *mask, u16 *property, int *mul, |
02bee89e EV |
916 | unsigned long **table, int *size) |
917 | { | |
918 | s32 rval = 0; | |
919 | ||
920 | switch (id) { | |
921 | /* FM_TX class controls */ | |
922 | case V4L2_CID_RDS_TX_PI: | |
923 | *property = SI4713_TX_RDS_PI; | |
924 | *mul = 1; | |
02bee89e EV |
925 | break; |
926 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: | |
927 | *property = SI4713_TX_ACOMP_THRESHOLD; | |
928 | *mul = 1; | |
02bee89e EV |
929 | break; |
930 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: | |
931 | *property = SI4713_TX_ACOMP_GAIN; | |
932 | *mul = 1; | |
02bee89e EV |
933 | break; |
934 | case V4L2_CID_PILOT_TONE_FREQUENCY: | |
935 | *property = SI4713_TX_PILOT_FREQUENCY; | |
936 | *mul = 1; | |
02bee89e EV |
937 | break; |
938 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: | |
939 | *property = SI4713_TX_ACOMP_ATTACK_TIME; | |
940 | *mul = ATTACK_TIME_UNIT; | |
02bee89e EV |
941 | break; |
942 | case V4L2_CID_PILOT_TONE_DEVIATION: | |
943 | *property = SI4713_TX_PILOT_DEVIATION; | |
944 | *mul = 10; | |
02bee89e EV |
945 | break; |
946 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: | |
947 | *property = SI4713_TX_AUDIO_DEVIATION; | |
948 | *mul = 10; | |
02bee89e EV |
949 | break; |
950 | case V4L2_CID_RDS_TX_DEVIATION: | |
951 | *property = SI4713_TX_RDS_DEVIATION; | |
952 | *mul = 1; | |
02bee89e EV |
953 | break; |
954 | ||
955 | case V4L2_CID_RDS_TX_PTY: | |
956 | *property = SI4713_TX_RDS_PS_MISC; | |
957 | *bit = 5; | |
958 | *mask = 0x1F << 5; | |
02bee89e EV |
959 | break; |
960 | case V4L2_CID_AUDIO_LIMITER_ENABLED: | |
961 | *property = SI4713_TX_ACOMP_ENABLE; | |
962 | *bit = 1; | |
963 | *mask = 1 << 1; | |
02bee89e EV |
964 | break; |
965 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: | |
966 | *property = SI4713_TX_ACOMP_ENABLE; | |
967 | *bit = 0; | |
968 | *mask = 1 << 0; | |
02bee89e EV |
969 | break; |
970 | case V4L2_CID_PILOT_TONE_ENABLED: | |
971 | *property = SI4713_TX_COMPONENT_ENABLE; | |
972 | *bit = 0; | |
973 | *mask = 1 << 0; | |
02bee89e EV |
974 | break; |
975 | ||
976 | case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: | |
977 | *property = SI4713_TX_LIMITER_RELEASE_TIME; | |
978 | *table = limiter_times; | |
979 | *size = ARRAY_SIZE(limiter_times); | |
02bee89e EV |
980 | break; |
981 | case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: | |
982 | *property = SI4713_TX_ACOMP_RELEASE_TIME; | |
983 | *table = acomp_rtimes; | |
984 | *size = ARRAY_SIZE(acomp_rtimes); | |
02bee89e EV |
985 | break; |
986 | case V4L2_CID_TUNE_PREEMPHASIS: | |
987 | *property = SI4713_TX_PREEMPHASIS; | |
988 | *table = preemphasis_values; | |
989 | *size = ARRAY_SIZE(preemphasis_values); | |
02bee89e EV |
990 | break; |
991 | ||
992 | default: | |
993 | rval = -EINVAL; | |
02bee89e | 994 | break; |
02bee89e EV |
995 | } |
996 | ||
02bee89e EV |
997 | return rval; |
998 | } | |
999 | ||
b530a447 | 1000 | static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f); |
3f70e1f5 | 1001 | static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *); |
02bee89e EV |
1002 | /* |
1003 | * si4713_setup - Sets the device up with current configuration. | |
1004 | * @sdev: si4713_device structure for the device we are communicating | |
1005 | */ | |
1006 | static int si4713_setup(struct si4713_device *sdev) | |
1007 | { | |
02bee89e EV |
1008 | struct v4l2_frequency f; |
1009 | struct v4l2_modulator vm; | |
03aa1bcd | 1010 | int rval; |
02bee89e EV |
1011 | |
1012 | /* Device procedure needs to set frequency first */ | |
b387754d | 1013 | f.tuner = 0; |
03aa1bcd | 1014 | f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY; |
02bee89e | 1015 | f.frequency = si4713_to_v4l2(f.frequency); |
03aa1bcd | 1016 | rval = si4713_s_frequency(&sdev->sd, &f); |
02bee89e EV |
1017 | |
1018 | vm.index = 0; | |
03aa1bcd | 1019 | if (sdev->stereo) |
02bee89e EV |
1020 | vm.txsubchans = V4L2_TUNER_SUB_STEREO; |
1021 | else | |
1022 | vm.txsubchans = V4L2_TUNER_SUB_MONO; | |
03aa1bcd | 1023 | if (sdev->rds_enabled) |
02bee89e EV |
1024 | vm.txsubchans |= V4L2_TUNER_SUB_RDS; |
1025 | si4713_s_modulator(&sdev->sd, &vm); | |
1026 | ||
02bee89e EV |
1027 | return rval; |
1028 | } | |
1029 | ||
1030 | /* | |
1031 | * si4713_initialize - Sets the device up with default configuration. | |
1032 | * @sdev: si4713_device structure for the device we are communicating | |
1033 | */ | |
1034 | static int si4713_initialize(struct si4713_device *sdev) | |
1035 | { | |
1036 | int rval; | |
1037 | ||
1038 | rval = si4713_set_power_state(sdev, POWER_ON); | |
1039 | if (rval < 0) | |
55b2a312 | 1040 | return rval; |
02bee89e EV |
1041 | |
1042 | rval = si4713_checkrev(sdev); | |
1043 | if (rval < 0) | |
55b2a312 | 1044 | return rval; |
02bee89e EV |
1045 | |
1046 | rval = si4713_set_power_state(sdev, POWER_OFF); | |
1047 | if (rval < 0) | |
55b2a312 | 1048 | return rval; |
02bee89e | 1049 | |
02bee89e | 1050 | sdev->frequency = DEFAULT_FREQUENCY; |
02bee89e EV |
1051 | sdev->stereo = 1; |
1052 | sdev->tune_rnl = DEFAULT_TUNE_RNL; | |
03aa1bcd | 1053 | return 0; |
02bee89e EV |
1054 | } |
1055 | ||
03aa1bcd HV |
1056 | /* si4713_s_ctrl - set the value of a control */ |
1057 | static int si4713_s_ctrl(struct v4l2_ctrl *ctrl) | |
02bee89e | 1058 | { |
03aa1bcd HV |
1059 | struct si4713_device *sdev = |
1060 | container_of(ctrl->handler, struct si4713_device, ctrl_handler); | |
1061 | u32 val = 0; | |
02bee89e EV |
1062 | s32 bit = 0, mask = 0; |
1063 | u16 property = 0; | |
1064 | int mul = 0; | |
1065 | unsigned long *table = NULL; | |
1066 | int size = 0; | |
03aa1bcd HV |
1067 | bool force = false; |
1068 | int c; | |
1069 | int ret = 0; | |
02bee89e | 1070 | |
03aa1bcd | 1071 | if (ctrl->id != V4L2_CID_AUDIO_MUTE) |
02bee89e | 1072 | return -EINVAL; |
03aa1bcd HV |
1073 | if (ctrl->is_new) { |
1074 | if (ctrl->val) { | |
1075 | ret = si4713_set_mute(sdev, ctrl->val); | |
1076 | if (!ret) | |
1077 | ret = si4713_set_power_state(sdev, POWER_DOWN); | |
1078 | return ret; | |
02bee89e | 1079 | } |
03aa1bcd HV |
1080 | ret = si4713_set_power_state(sdev, POWER_UP); |
1081 | if (!ret) | |
1082 | ret = si4713_set_mute(sdev, ctrl->val); | |
1083 | if (!ret) | |
1084 | ret = si4713_setup(sdev); | |
1085 | if (ret) | |
1086 | return ret; | |
1087 | force = true; | |
02bee89e EV |
1088 | } |
1089 | ||
03aa1bcd HV |
1090 | if (!sdev->power_state) |
1091 | return 0; | |
02bee89e | 1092 | |
03aa1bcd HV |
1093 | for (c = 1; !ret && c < ctrl->ncontrols; c++) { |
1094 | ctrl = ctrl->cluster[c]; | |
02bee89e | 1095 | |
03aa1bcd HV |
1096 | if (!force && !ctrl->is_new) |
1097 | continue; | |
02bee89e | 1098 | |
03aa1bcd | 1099 | switch (ctrl->id) { |
02bee89e | 1100 | case V4L2_CID_RDS_TX_PS_NAME: |
03aa1bcd HV |
1101 | ret = si4713_set_rds_ps_name(sdev, ctrl->string); |
1102 | break; | |
1103 | ||
02bee89e | 1104 | case V4L2_CID_RDS_TX_RADIO_TEXT: |
03aa1bcd | 1105 | ret = si4713_set_rds_radio_text(sdev, ctrl->string); |
02bee89e | 1106 | break; |
03aa1bcd | 1107 | |
02bee89e | 1108 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: |
03aa1bcd HV |
1109 | /* don't handle this control if we force setting all |
1110 | * controls since in that case it will be handled by | |
1111 | * V4L2_CID_TUNE_POWER_LEVEL. */ | |
1112 | if (force) | |
1113 | break; | |
1114 | /* fall through */ | |
02bee89e | 1115 | case V4L2_CID_TUNE_POWER_LEVEL: |
03aa1bcd HV |
1116 | ret = si4713_tx_tune_power(sdev, |
1117 | sdev->tune_pwr_level->val, sdev->tune_ant_cap->val); | |
1118 | if (!ret) { | |
1119 | /* Make sure we don't set this twice */ | |
1120 | sdev->tune_ant_cap->is_new = false; | |
1121 | sdev->tune_pwr_level->is_new = false; | |
1122 | } | |
02bee89e | 1123 | break; |
02bee89e | 1124 | |
03aa1bcd HV |
1125 | default: |
1126 | ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit, | |
1127 | &mask, &property, &mul, &table, &size); | |
1128 | if (ret < 0) | |
1129 | break; | |
1130 | ||
1131 | val = ctrl->val; | |
1132 | if (mul) { | |
1133 | val = val / mul; | |
1134 | } else if (table) { | |
1135 | ret = usecs_to_dev(val, table, size); | |
1136 | if (ret < 0) | |
1137 | break; | |
1138 | val = ret; | |
1139 | ret = 0; | |
1140 | } | |
02bee89e | 1141 | |
03aa1bcd HV |
1142 | if (mask) { |
1143 | ret = si4713_read_property(sdev, property, &val); | |
1144 | if (ret < 0) | |
1145 | break; | |
1146 | val = set_bits(val, ctrl->val, bit, mask); | |
1147 | } | |
02bee89e | 1148 | |
03aa1bcd HV |
1149 | ret = si4713_write_property(sdev, property, val); |
1150 | if (ret < 0) | |
1151 | break; | |
1152 | if (mask) | |
1153 | val = ctrl->val; | |
1154 | break; | |
02bee89e | 1155 | } |
02bee89e EV |
1156 | } |
1157 | ||
03aa1bcd | 1158 | return ret; |
02bee89e EV |
1159 | } |
1160 | ||
1161 | /* si4713_ioctl - deal with private ioctls (only rnl for now) */ | |
0dec8688 | 1162 | static long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) |
02bee89e EV |
1163 | { |
1164 | struct si4713_device *sdev = to_si4713_device(sd); | |
1165 | struct si4713_rnl *rnl = arg; | |
1166 | u16 frequency; | |
1167 | int rval = 0; | |
1168 | ||
1169 | if (!arg) | |
1170 | return -EINVAL; | |
1171 | ||
02bee89e EV |
1172 | switch (cmd) { |
1173 | case SI4713_IOC_MEASURE_RNL: | |
1174 | frequency = v4l2_to_si4713(rnl->frequency); | |
1175 | ||
1176 | if (sdev->power_state) { | |
1177 | /* Set desired measurement frequency */ | |
1178 | rval = si4713_tx_tune_measure(sdev, frequency, 0); | |
1179 | if (rval < 0) | |
55b2a312 | 1180 | return rval; |
02bee89e EV |
1181 | /* get results from tune status */ |
1182 | rval = si4713_update_tune_status(sdev); | |
1183 | if (rval < 0) | |
55b2a312 | 1184 | return rval; |
02bee89e EV |
1185 | } |
1186 | rnl->rnl = sdev->tune_rnl; | |
1187 | break; | |
1188 | ||
1189 | default: | |
1190 | /* nothing */ | |
1191 | rval = -ENOIOCTLCMD; | |
1192 | } | |
1193 | ||
02bee89e EV |
1194 | return rval; |
1195 | } | |
1196 | ||
02bee89e EV |
1197 | /* si4713_g_modulator - get modulator attributes */ |
1198 | static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) | |
1199 | { | |
1200 | struct si4713_device *sdev = to_si4713_device(sd); | |
1201 | int rval = 0; | |
1202 | ||
55b2a312 HV |
1203 | if (!sdev) |
1204 | return -ENODEV; | |
02bee89e | 1205 | |
55b2a312 HV |
1206 | if (vm->index > 0) |
1207 | return -EINVAL; | |
02bee89e EV |
1208 | |
1209 | strncpy(vm->name, "FM Modulator", 32); | |
1210 | vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW | | |
cb0ed222 | 1211 | V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS; |
02bee89e EV |
1212 | |
1213 | /* Report current frequency range limits */ | |
1214 | vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW); | |
1215 | vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH); | |
1216 | ||
02bee89e EV |
1217 | if (sdev->power_state) { |
1218 | u32 comp_en = 0; | |
1219 | ||
1220 | rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, | |
1221 | &comp_en); | |
1222 | if (rval < 0) | |
55b2a312 | 1223 | return rval; |
02bee89e EV |
1224 | |
1225 | sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); | |
02bee89e EV |
1226 | } |
1227 | ||
1228 | /* Report current audio mode: mono or stereo */ | |
1229 | if (sdev->stereo) | |
1230 | vm->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1231 | else | |
1232 | vm->txsubchans = V4L2_TUNER_SUB_MONO; | |
1233 | ||
1234 | /* Report rds feature status */ | |
03aa1bcd | 1235 | if (sdev->rds_enabled) |
02bee89e EV |
1236 | vm->txsubchans |= V4L2_TUNER_SUB_RDS; |
1237 | else | |
1238 | vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; | |
1239 | ||
02bee89e EV |
1240 | return rval; |
1241 | } | |
1242 | ||
1243 | /* si4713_s_modulator - set modulator attributes */ | |
3f70e1f5 | 1244 | static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *vm) |
02bee89e EV |
1245 | { |
1246 | struct si4713_device *sdev = to_si4713_device(sd); | |
1247 | int rval = 0; | |
1248 | u16 stereo, rds; | |
1249 | u32 p; | |
1250 | ||
a65f3159 HV |
1251 | if (!sdev) |
1252 | return -ENODEV; | |
02bee89e | 1253 | |
a65f3159 HV |
1254 | if (vm->index > 0) |
1255 | return -EINVAL; | |
02bee89e EV |
1256 | |
1257 | /* Set audio mode: mono or stereo */ | |
1258 | if (vm->txsubchans & V4L2_TUNER_SUB_STEREO) | |
1259 | stereo = 1; | |
1260 | else if (vm->txsubchans & V4L2_TUNER_SUB_MONO) | |
1261 | stereo = 0; | |
1262 | else | |
a65f3159 | 1263 | return -EINVAL; |
02bee89e EV |
1264 | |
1265 | rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS); | |
1266 | ||
02bee89e EV |
1267 | if (sdev->power_state) { |
1268 | rval = si4713_read_property(sdev, | |
1269 | SI4713_TX_COMPONENT_ENABLE, &p); | |
1270 | if (rval < 0) | |
55b2a312 | 1271 | return rval; |
02bee89e EV |
1272 | |
1273 | p = set_bits(p, stereo, 1, 1 << 1); | |
1274 | p = set_bits(p, rds, 2, 1 << 2); | |
1275 | ||
1276 | rval = si4713_write_property(sdev, | |
1277 | SI4713_TX_COMPONENT_ENABLE, p); | |
1278 | if (rval < 0) | |
55b2a312 | 1279 | return rval; |
02bee89e EV |
1280 | } |
1281 | ||
1282 | sdev->stereo = stereo; | |
03aa1bcd | 1283 | sdev->rds_enabled = rds; |
02bee89e | 1284 | |
02bee89e EV |
1285 | return rval; |
1286 | } | |
1287 | ||
1288 | /* si4713_g_frequency - get tuner or modulator radio frequency */ | |
1289 | static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
1290 | { | |
1291 | struct si4713_device *sdev = to_si4713_device(sd); | |
1292 | int rval = 0; | |
1293 | ||
b387754d HV |
1294 | if (f->tuner) |
1295 | return -EINVAL; | |
02bee89e | 1296 | |
02bee89e EV |
1297 | if (sdev->power_state) { |
1298 | u16 freq; | |
1299 | u8 p, a, n; | |
1300 | ||
1301 | rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); | |
1302 | if (rval < 0) | |
55b2a312 | 1303 | return rval; |
02bee89e EV |
1304 | |
1305 | sdev->frequency = freq; | |
1306 | } | |
1307 | ||
1308 | f->frequency = si4713_to_v4l2(sdev->frequency); | |
1309 | ||
02bee89e EV |
1310 | return rval; |
1311 | } | |
1312 | ||
1313 | /* si4713_s_frequency - set tuner or modulator radio frequency */ | |
b530a447 | 1314 | static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) |
02bee89e EV |
1315 | { |
1316 | struct si4713_device *sdev = to_si4713_device(sd); | |
1317 | int rval = 0; | |
1318 | u16 frequency = v4l2_to_si4713(f->frequency); | |
1319 | ||
b387754d HV |
1320 | if (f->tuner) |
1321 | return -EINVAL; | |
1322 | ||
02bee89e | 1323 | /* Check frequency range */ |
b387754d | 1324 | frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH); |
02bee89e | 1325 | |
02bee89e EV |
1326 | if (sdev->power_state) { |
1327 | rval = si4713_tx_tune_freq(sdev, frequency); | |
1328 | if (rval < 0) | |
55b2a312 | 1329 | return rval; |
02bee89e EV |
1330 | frequency = rval; |
1331 | rval = 0; | |
1332 | } | |
1333 | sdev->frequency = frequency; | |
02bee89e | 1334 | |
02bee89e EV |
1335 | return rval; |
1336 | } | |
1337 | ||
03aa1bcd HV |
1338 | static const struct v4l2_ctrl_ops si4713_ctrl_ops = { |
1339 | .s_ctrl = si4713_s_ctrl, | |
1340 | }; | |
1341 | ||
1342 | static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { | |
1343 | .ioctl = si4713_ioctl, | |
1344 | }; | |
1345 | ||
02bee89e EV |
1346 | static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = { |
1347 | .g_frequency = si4713_g_frequency, | |
1348 | .s_frequency = si4713_s_frequency, | |
1349 | .g_modulator = si4713_g_modulator, | |
1350 | .s_modulator = si4713_s_modulator, | |
1351 | }; | |
1352 | ||
1353 | static const struct v4l2_subdev_ops si4713_subdev_ops = { | |
1354 | .core = &si4713_subdev_core_ops, | |
1355 | .tuner = &si4713_subdev_tuner_ops, | |
1356 | }; | |
1357 | ||
1358 | /* | |
1359 | * I2C driver interface | |
1360 | */ | |
1361 | /* si4713_probe - probe for the device */ | |
1362 | static int si4713_probe(struct i2c_client *client, | |
1363 | const struct i2c_device_id *id) | |
1364 | { | |
1365 | struct si4713_device *sdev; | |
00df055a | 1366 | struct si4713_platform_data *pdata = client->dev.platform_data; |
03aa1bcd | 1367 | struct v4l2_ctrl_handler *hdl; |
00df055a | 1368 | int rval, i; |
02bee89e | 1369 | |
9ca33ccd | 1370 | sdev = kzalloc(sizeof(*sdev), GFP_KERNEL); |
02bee89e EV |
1371 | if (!sdev) { |
1372 | dev_err(&client->dev, "Failed to alloc video device.\n"); | |
1373 | rval = -ENOMEM; | |
1374 | goto exit; | |
1375 | } | |
1376 | ||
00df055a JN |
1377 | sdev->gpio_reset = -1; |
1378 | if (pdata && gpio_is_valid(pdata->gpio_reset)) { | |
1379 | rval = gpio_request(pdata->gpio_reset, "si4713 reset"); | |
1380 | if (rval) { | |
1381 | dev_err(&client->dev, | |
1382 | "Failed to request gpio: %d\n", rval); | |
1383 | goto free_sdev; | |
1384 | } | |
1385 | sdev->gpio_reset = pdata->gpio_reset; | |
1386 | gpio_direction_output(sdev->gpio_reset, 0); | |
cc6d618f | 1387 | sdev->supplies = pdata->supplies; |
00df055a JN |
1388 | } |
1389 | ||
cc6d618f DR |
1390 | for (i = 0; i < sdev->supplies; i++) |
1391 | sdev->supply_data[i].supply = pdata->supply_names[i]; | |
00df055a | 1392 | |
cc6d618f DR |
1393 | rval = regulator_bulk_get(&client->dev, sdev->supplies, |
1394 | sdev->supply_data); | |
00df055a JN |
1395 | if (rval) { |
1396 | dev_err(&client->dev, "Cannot get regulators: %d\n", rval); | |
1397 | goto free_gpio; | |
02bee89e EV |
1398 | } |
1399 | ||
1400 | v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops); | |
1401 | ||
02bee89e EV |
1402 | init_completion(&sdev->work); |
1403 | ||
03aa1bcd HV |
1404 | hdl = &sdev->ctrl_handler; |
1405 | v4l2_ctrl_handler_init(hdl, 20); | |
1406 | sdev->mute = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1407 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, DEFAULT_MUTE); | |
1408 | ||
1409 | sdev->rds_pi = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1410 | V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, DEFAULT_RDS_PI); | |
1411 | sdev->rds_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1412 | V4L2_CID_RDS_TX_PTY, 0, 31, 1, DEFAULT_RDS_PTY); | |
1413 | sdev->rds_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1414 | V4L2_CID_RDS_TX_DEVIATION, 0, MAX_RDS_DEVIATION, | |
1415 | 10, DEFAULT_RDS_DEVIATION); | |
1416 | /* | |
1417 | * Report step as 8. From RDS spec, psname | |
1418 | * should be 8. But there are receivers which scroll strings | |
1419 | * sized as 8xN. | |
1420 | */ | |
1421 | sdev->rds_ps_name = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1422 | V4L2_CID_RDS_TX_PS_NAME, 0, MAX_RDS_PS_NAME, 8, 0); | |
1423 | /* | |
1424 | * Report step as 32 (2A block). From RDS spec, | |
1425 | * radio text should be 32 for 2A block. But there are receivers | |
1426 | * which scroll strings sized as 32xN. Setting default to 32. | |
1427 | */ | |
1428 | sdev->rds_radio_text = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1429 | V4L2_CID_RDS_TX_RADIO_TEXT, 0, MAX_RDS_RADIO_TEXT, 32, 0); | |
1430 | ||
1431 | sdev->limiter_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1432 | V4L2_CID_AUDIO_LIMITER_ENABLED, 0, 1, 1, 1); | |
1433 | sdev->limiter_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1434 | V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, 250, | |
1435 | MAX_LIMITER_RELEASE_TIME, 10, DEFAULT_LIMITER_RTIME); | |
1436 | sdev->limiter_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1437 | V4L2_CID_AUDIO_LIMITER_DEVIATION, 0, | |
1438 | MAX_LIMITER_DEVIATION, 10, DEFAULT_LIMITER_DEV); | |
1439 | ||
1440 | sdev->compression_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1441 | V4L2_CID_AUDIO_COMPRESSION_ENABLED, 0, 1, 1, 1); | |
1442 | sdev->compression_gain = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1443 | V4L2_CID_AUDIO_COMPRESSION_GAIN, 0, MAX_ACOMP_GAIN, 1, | |
1444 | DEFAULT_ACOMP_GAIN); | |
1445 | sdev->compression_threshold = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
9ca33ccd HV |
1446 | V4L2_CID_AUDIO_COMPRESSION_THRESHOLD, |
1447 | MIN_ACOMP_THRESHOLD, MAX_ACOMP_THRESHOLD, 1, | |
03aa1bcd HV |
1448 | DEFAULT_ACOMP_THRESHOLD); |
1449 | sdev->compression_attack_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1450 | V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, 0, | |
1451 | MAX_ACOMP_ATTACK_TIME, 500, DEFAULT_ACOMP_ATIME); | |
1452 | sdev->compression_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1453 | V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, 100000, | |
1454 | MAX_ACOMP_RELEASE_TIME, 100000, DEFAULT_ACOMP_RTIME); | |
1455 | ||
1456 | sdev->pilot_tone_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1457 | V4L2_CID_PILOT_TONE_ENABLED, 0, 1, 1, 1); | |
1458 | sdev->pilot_tone_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1459 | V4L2_CID_PILOT_TONE_DEVIATION, 0, MAX_PILOT_DEVIATION, | |
1460 | 10, DEFAULT_PILOT_DEVIATION); | |
1461 | sdev->pilot_tone_freq = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
1462 | V4L2_CID_PILOT_TONE_FREQUENCY, 0, MAX_PILOT_FREQUENCY, | |
1463 | 1, DEFAULT_PILOT_FREQUENCY); | |
1464 | ||
1465 | sdev->tune_preemphasis = v4l2_ctrl_new_std_menu(hdl, &si4713_ctrl_ops, | |
1466 | V4L2_CID_TUNE_PREEMPHASIS, | |
1467 | V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS); | |
1468 | sdev->tune_pwr_level = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, | |
9ca33ccd HV |
1469 | V4L2_CID_TUNE_POWER_LEVEL, 0, SI4713_MAX_POWER, |
1470 | 1, DEFAULT_POWER_LEVEL); | |
03aa1bcd | 1471 | sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, |
9ca33ccd HV |
1472 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, SI4713_MAX_ANTCAP, |
1473 | 1, 0); | |
03aa1bcd HV |
1474 | |
1475 | if (hdl->error) { | |
1476 | rval = hdl->error; | |
1477 | goto free_ctrls; | |
1478 | } | |
1479 | v4l2_ctrl_cluster(20, &sdev->mute); | |
1480 | sdev->sd.ctrl_handler = hdl; | |
1481 | ||
02bee89e EV |
1482 | if (client->irq) { |
1483 | rval = request_irq(client->irq, | |
0798ec69 | 1484 | si4713_handler, IRQF_TRIGGER_FALLING, |
02bee89e EV |
1485 | client->name, sdev); |
1486 | if (rval < 0) { | |
1487 | v4l2_err(&sdev->sd, "Could not request IRQ\n"); | |
00df055a | 1488 | goto put_reg; |
02bee89e EV |
1489 | } |
1490 | v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n"); | |
1491 | } else { | |
1492 | v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n"); | |
1493 | } | |
1494 | ||
1495 | rval = si4713_initialize(sdev); | |
1496 | if (rval < 0) { | |
1497 | v4l2_err(&sdev->sd, "Failed to probe device information.\n"); | |
1498 | goto free_irq; | |
1499 | } | |
1500 | ||
1501 | return 0; | |
1502 | ||
1503 | free_irq: | |
1504 | if (client->irq) | |
1505 | free_irq(client->irq, sdev); | |
03aa1bcd HV |
1506 | free_ctrls: |
1507 | v4l2_ctrl_handler_free(hdl); | |
00df055a | 1508 | put_reg: |
cc6d618f | 1509 | regulator_bulk_free(sdev->supplies, sdev->supply_data); |
00df055a JN |
1510 | free_gpio: |
1511 | if (gpio_is_valid(sdev->gpio_reset)) | |
1512 | gpio_free(sdev->gpio_reset); | |
02bee89e EV |
1513 | free_sdev: |
1514 | kfree(sdev); | |
1515 | exit: | |
1516 | return rval; | |
1517 | } | |
1518 | ||
1519 | /* si4713_remove - remove the device */ | |
1520 | static int si4713_remove(struct i2c_client *client) | |
1521 | { | |
1522 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1523 | struct si4713_device *sdev = to_si4713_device(sd); | |
1524 | ||
1525 | if (sdev->power_state) | |
1526 | si4713_set_power_state(sdev, POWER_DOWN); | |
1527 | ||
1528 | if (client->irq > 0) | |
1529 | free_irq(client->irq, sdev); | |
1530 | ||
1531 | v4l2_device_unregister_subdev(sd); | |
03aa1bcd | 1532 | v4l2_ctrl_handler_free(sd->ctrl_handler); |
cc6d618f | 1533 | regulator_bulk_free(sdev->supplies, sdev->supply_data); |
00df055a JN |
1534 | if (gpio_is_valid(sdev->gpio_reset)) |
1535 | gpio_free(sdev->gpio_reset); | |
02bee89e EV |
1536 | kfree(sdev); |
1537 | ||
1538 | return 0; | |
1539 | } | |
1540 | ||
1541 | /* si4713_i2c_driver - i2c driver interface */ | |
1542 | static const struct i2c_device_id si4713_id[] = { | |
1543 | { "si4713" , 0 }, | |
1544 | { }, | |
1545 | }; | |
1546 | MODULE_DEVICE_TABLE(i2c, si4713_id); | |
1547 | ||
1548 | static struct i2c_driver si4713_i2c_driver = { | |
1549 | .driver = { | |
1550 | .name = "si4713", | |
1551 | }, | |
1552 | .probe = si4713_probe, | |
1553 | .remove = si4713_remove, | |
1554 | .id_table = si4713_id, | |
1555 | }; | |
1556 | ||
c6e8d86f | 1557 | module_i2c_driver(si4713_i2c_driver); |