Commit | Line | Data |
---|---|---|
87d1a50c MA |
1 | /* |
2 | * Driver for the Texas Instruments WL1273 FM radio. | |
3 | * | |
96a9cc68 | 4 | * Copyright (C) 2011 Nokia Corporation |
87d1a50c MA |
5 | * Author: Matti J. Aaltonen <matti.j.aaltonen@nokia.com> |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * version 2 as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
87d1a50c MA |
15 | */ |
16 | ||
17 | #include <linux/delay.h> | |
18 | #include <linux/firmware.h> | |
19 | #include <linux/interrupt.h> | |
20 | #include <linux/mfd/wl1273-core.h> | |
21 | #include <linux/slab.h> | |
7a707b89 | 22 | #include <linux/module.h> |
87d1a50c MA |
23 | #include <media/v4l2-common.h> |
24 | #include <media/v4l2-ctrls.h> | |
25 | #include <media/v4l2-device.h> | |
26 | #include <media/v4l2-ioctl.h> | |
27 | ||
28 | #define DRIVER_DESC "Wl1273 FM Radio" | |
29 | ||
30 | #define WL1273_POWER_SET_OFF 0 | |
31 | #define WL1273_POWER_SET_FM BIT(0) | |
32 | #define WL1273_POWER_SET_RDS BIT(1) | |
33 | #define WL1273_POWER_SET_RETENTION BIT(4) | |
34 | ||
35 | #define WL1273_PUPD_SET_OFF 0x00 | |
36 | #define WL1273_PUPD_SET_ON 0x01 | |
37 | #define WL1273_PUPD_SET_RETENTION 0x10 | |
38 | ||
39 | #define WL1273_FREQ(x) (x * 10000 / 625) | |
40 | #define WL1273_INV_FREQ(x) (x * 625 / 10000) | |
41 | ||
42 | /* | |
43 | * static int radio_nr - The number of the radio device | |
44 | * | |
45 | * The default is 0. | |
46 | */ | |
47 | static int radio_nr; | |
48 | module_param(radio_nr, int, 0); | |
49 | MODULE_PARM_DESC(radio_nr, "The number of the radio device. Default = 0"); | |
50 | ||
51 | struct wl1273_device { | |
52 | char *bus_type; | |
53 | ||
54 | u8 forbidden; | |
55 | unsigned int preemphasis; | |
56 | unsigned int spacing; | |
57 | unsigned int tx_power; | |
58 | unsigned int rx_frequency; | |
59 | unsigned int tx_frequency; | |
60 | unsigned int rangelow; | |
61 | unsigned int rangehigh; | |
62 | unsigned int band; | |
63 | bool stereo; | |
64 | ||
65 | /* RDS */ | |
66 | unsigned int rds_on; | |
87d1a50c MA |
67 | |
68 | wait_queue_head_t read_queue; | |
69 | struct mutex lock; /* for serializing fm radio operations */ | |
70 | struct completion busy; | |
71 | ||
72 | unsigned char *buffer; | |
73 | unsigned int buf_size; | |
74 | unsigned int rd_index; | |
75 | unsigned int wr_index; | |
76 | ||
77 | /* Selected interrupts */ | |
78 | u16 irq_flags; | |
79 | u16 irq_received; | |
80 | ||
81 | struct v4l2_ctrl_handler ctrl_handler; | |
82 | struct v4l2_device v4l2dev; | |
83 | struct video_device videodev; | |
84 | struct device *dev; | |
85 | struct wl1273_core *core; | |
86 | struct file *owner; | |
87 | char *write_buf; | |
88 | unsigned int rds_users; | |
89 | }; | |
90 | ||
91 | #define WL1273_IRQ_MASK (WL1273_FR_EVENT | \ | |
92 | WL1273_POW_ENB_EVENT) | |
93 | ||
94 | /* | |
95 | * static unsigned int rds_buf - the number of RDS buffer blocks used. | |
96 | * | |
97 | * The default number is 100. | |
98 | */ | |
99 | static unsigned int rds_buf = 100; | |
100 | module_param(rds_buf, uint, 0); | |
101 | MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 100"); | |
102 | ||
87d1a50c MA |
103 | static int wl1273_fm_write_fw(struct wl1273_core *core, |
104 | __u8 *fw, int len) | |
105 | { | |
106 | struct i2c_client *client = core->client; | |
107 | struct i2c_msg msg; | |
108 | int i, r = 0; | |
109 | ||
110 | msg.addr = client->addr; | |
111 | msg.flags = 0; | |
112 | ||
113 | for (i = 0; i <= len; i++) { | |
114 | msg.len = fw[0]; | |
115 | msg.buf = fw + 1; | |
116 | ||
117 | fw += msg.len + 1; | |
118 | dev_dbg(&client->dev, "%s:len[%d]: %d\n", __func__, i, msg.len); | |
119 | ||
120 | r = i2c_transfer(client->adapter, &msg, 1); | |
121 | if (r < 0 && i < len + 1) | |
122 | break; | |
123 | } | |
124 | ||
125 | dev_dbg(&client->dev, "%s: i: %d\n", __func__, i); | |
126 | dev_dbg(&client->dev, "%s: len + 1: %d\n", __func__, len + 1); | |
127 | ||
128 | /* Last transfer always fails. */ | |
129 | if (i == len || r == 1) | |
130 | r = 0; | |
131 | ||
132 | return r; | |
133 | } | |
134 | ||
87d1a50c MA |
135 | #define WL1273_FIFO_HAS_DATA(status) (1 << 5 & status) |
136 | #define WL1273_RDS_CORRECTABLE_ERROR (1 << 3) | |
137 | #define WL1273_RDS_UNCORRECTABLE_ERROR (1 << 4) | |
138 | ||
139 | static int wl1273_fm_rds(struct wl1273_device *radio) | |
140 | { | |
141 | struct wl1273_core *core = radio->core; | |
142 | struct i2c_client *client = core->client; | |
143 | u16 val; | |
144 | u8 b0 = WL1273_RDS_DATA_GET, status; | |
145 | struct v4l2_rds_data rds = { 0, 0, 0 }; | |
146 | struct i2c_msg msg[] = { | |
147 | { | |
148 | .addr = client->addr, | |
149 | .flags = 0, | |
150 | .buf = &b0, | |
151 | .len = 1, | |
152 | }, | |
153 | { | |
154 | .addr = client->addr, | |
155 | .flags = I2C_M_RD, | |
156 | .buf = (u8 *) &rds, | |
157 | .len = sizeof(rds), | |
158 | } | |
159 | }; | |
160 | int r; | |
161 | ||
162 | if (core->mode != WL1273_MODE_RX) | |
163 | return 0; | |
164 | ||
96a9cc68 | 165 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
166 | if (r) |
167 | return r; | |
168 | ||
169 | if ((val & 0x01) == 0) { | |
170 | /* RDS decoder not synchronized */ | |
171 | return -EAGAIN; | |
172 | } | |
173 | ||
174 | /* copy all four RDS blocks to internal buffer */ | |
175 | do { | |
176 | r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); | |
177 | if (r != ARRAY_SIZE(msg)) { | |
178 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
179 | ": %s: read_rds error r == %i)\n", | |
180 | __func__, r); | |
181 | } | |
182 | ||
183 | status = rds.block; | |
184 | ||
185 | if (!WL1273_FIFO_HAS_DATA(status)) | |
186 | break; | |
187 | ||
188 | /* copy bits 0-2 (the block ID) to bits 3-5 */ | |
189 | rds.block = V4L2_RDS_BLOCK_MSK & status; | |
190 | rds.block |= rds.block << 3; | |
191 | ||
192 | /* copy the error bits to standard positions */ | |
193 | if (WL1273_RDS_UNCORRECTABLE_ERROR & status) { | |
194 | rds.block |= V4L2_RDS_BLOCK_ERROR; | |
195 | rds.block &= ~V4L2_RDS_BLOCK_CORRECTED; | |
196 | } else if (WL1273_RDS_CORRECTABLE_ERROR & status) { | |
197 | rds.block &= ~V4L2_RDS_BLOCK_ERROR; | |
198 | rds.block |= V4L2_RDS_BLOCK_CORRECTED; | |
199 | } | |
200 | ||
201 | /* copy RDS block to internal buffer */ | |
202 | memcpy(&radio->buffer[radio->wr_index], &rds, RDS_BLOCK_SIZE); | |
203 | radio->wr_index += 3; | |
204 | ||
205 | /* wrap write pointer */ | |
206 | if (radio->wr_index >= radio->buf_size) | |
207 | radio->wr_index = 0; | |
208 | ||
209 | /* check for overflow & start over */ | |
210 | if (radio->wr_index == radio->rd_index) { | |
211 | dev_dbg(radio->dev, "RDS OVERFLOW"); | |
212 | ||
213 | radio->rd_index = 0; | |
214 | radio->wr_index = 0; | |
215 | break; | |
216 | } | |
217 | } while (WL1273_FIFO_HAS_DATA(status)); | |
218 | ||
219 | /* wake up read queue */ | |
220 | if (radio->wr_index != radio->rd_index) | |
221 | wake_up_interruptible(&radio->read_queue); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
226 | static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id) | |
227 | { | |
228 | struct wl1273_device *radio = dev_id; | |
229 | struct wl1273_core *core = radio->core; | |
230 | u16 flags; | |
231 | int r; | |
232 | ||
96a9cc68 | 233 | r = core->read(core, WL1273_FLAG_GET, &flags); |
87d1a50c MA |
234 | if (r) |
235 | goto out; | |
236 | ||
237 | if (flags & WL1273_BL_EVENT) { | |
238 | radio->irq_received = flags; | |
239 | dev_dbg(radio->dev, "IRQ: BL\n"); | |
240 | } | |
241 | ||
242 | if (flags & WL1273_RDS_EVENT) { | |
243 | msleep(200); | |
244 | ||
245 | wl1273_fm_rds(radio); | |
246 | } | |
247 | ||
248 | if (flags & WL1273_BBLK_EVENT) | |
249 | dev_dbg(radio->dev, "IRQ: BBLK\n"); | |
250 | ||
251 | if (flags & WL1273_LSYNC_EVENT) | |
252 | dev_dbg(radio->dev, "IRQ: LSYNC\n"); | |
253 | ||
254 | if (flags & WL1273_LEV_EVENT) { | |
255 | u16 level; | |
256 | ||
96a9cc68 | 257 | r = core->read(core, WL1273_RSSI_LVL_GET, &level); |
87d1a50c MA |
258 | if (r) |
259 | goto out; | |
260 | ||
261 | if (level > 14) | |
262 | dev_dbg(radio->dev, "IRQ: LEV: 0x%x04\n", level); | |
263 | } | |
264 | ||
265 | if (flags & WL1273_IFFR_EVENT) | |
266 | dev_dbg(radio->dev, "IRQ: IFFR\n"); | |
267 | ||
268 | if (flags & WL1273_PI_EVENT) | |
269 | dev_dbg(radio->dev, "IRQ: PI\n"); | |
270 | ||
271 | if (flags & WL1273_PD_EVENT) | |
272 | dev_dbg(radio->dev, "IRQ: PD\n"); | |
273 | ||
274 | if (flags & WL1273_STIC_EVENT) | |
275 | dev_dbg(radio->dev, "IRQ: STIC\n"); | |
276 | ||
277 | if (flags & WL1273_MAL_EVENT) | |
278 | dev_dbg(radio->dev, "IRQ: MAL\n"); | |
279 | ||
280 | if (flags & WL1273_POW_ENB_EVENT) { | |
281 | complete(&radio->busy); | |
282 | dev_dbg(radio->dev, "NOT BUSY\n"); | |
283 | dev_dbg(radio->dev, "IRQ: POW_ENB\n"); | |
284 | } | |
285 | ||
286 | if (flags & WL1273_SCAN_OVER_EVENT) | |
287 | dev_dbg(radio->dev, "IRQ: SCAN_OVER\n"); | |
288 | ||
289 | if (flags & WL1273_ERROR_EVENT) | |
290 | dev_dbg(radio->dev, "IRQ: ERROR\n"); | |
291 | ||
292 | if (flags & WL1273_FR_EVENT) { | |
293 | u16 freq; | |
294 | ||
295 | dev_dbg(radio->dev, "IRQ: FR:\n"); | |
296 | ||
297 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
298 | r = core->write(core, WL1273_TUNER_MODE_SET, |
299 | TUNER_MODE_STOP_SEARCH); | |
87d1a50c MA |
300 | if (r) { |
301 | dev_err(radio->dev, | |
302 | "%s: TUNER_MODE_SET fails: %d\n", | |
303 | __func__, r); | |
304 | goto out; | |
305 | } | |
306 | ||
96a9cc68 | 307 | r = core->read(core, WL1273_FREQ_SET, &freq); |
87d1a50c MA |
308 | if (r) |
309 | goto out; | |
310 | ||
311 | if (radio->band == WL1273_BAND_JAPAN) | |
312 | radio->rx_frequency = WL1273_BAND_JAPAN_LOW + | |
313 | freq * 50; | |
314 | else | |
315 | radio->rx_frequency = WL1273_BAND_OTHER_LOW + | |
316 | freq * 50; | |
317 | /* | |
318 | * The driver works better with this msleep, | |
319 | * the documentation doesn't mention it. | |
320 | */ | |
321 | usleep_range(10000, 15000); | |
322 | ||
323 | dev_dbg(radio->dev, "%dkHz\n", radio->rx_frequency); | |
324 | ||
325 | } else { | |
96a9cc68 | 326 | r = core->read(core, WL1273_CHANL_SET, &freq); |
87d1a50c MA |
327 | if (r) |
328 | goto out; | |
329 | ||
330 | dev_dbg(radio->dev, "%dkHz\n", freq); | |
331 | } | |
332 | dev_dbg(radio->dev, "%s: NOT BUSY\n", __func__); | |
333 | } | |
334 | ||
335 | out: | |
96a9cc68 | 336 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
337 | complete(&radio->busy); |
338 | ||
339 | return IRQ_HANDLED; | |
340 | } | |
341 | ||
342 | static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq) | |
343 | { | |
344 | struct wl1273_core *core = radio->core; | |
345 | int r = 0; | |
daa939db | 346 | unsigned long t; |
87d1a50c MA |
347 | |
348 | if (freq < WL1273_BAND_TX_LOW) { | |
349 | dev_err(radio->dev, | |
350 | "Frequency out of range: %d < %d\n", freq, | |
351 | WL1273_BAND_TX_LOW); | |
352 | return -ERANGE; | |
353 | } | |
354 | ||
355 | if (freq > WL1273_BAND_TX_HIGH) { | |
356 | dev_err(radio->dev, | |
357 | "Frequency out of range: %d > %d\n", freq, | |
358 | WL1273_BAND_TX_HIGH); | |
359 | return -ERANGE; | |
360 | } | |
361 | ||
362 | /* | |
363 | * The driver works better with this sleep, | |
364 | * the documentation doesn't mention it. | |
365 | */ | |
366 | usleep_range(5000, 10000); | |
367 | ||
368 | dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq); | |
369 | ||
370 | /* Set the current tx channel */ | |
96a9cc68 | 371 | r = core->write(core, WL1273_CHANL_SET, freq / 10); |
87d1a50c MA |
372 | if (r) |
373 | return r; | |
374 | ||
16735d02 | 375 | reinit_completion(&radio->busy); |
87d1a50c MA |
376 | |
377 | /* wait for the FR IRQ */ | |
daa939db NMG |
378 | t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); |
379 | if (!t) | |
87d1a50c MA |
380 | return -ETIMEDOUT; |
381 | ||
daa939db | 382 | dev_dbg(radio->dev, "WL1273_CHANL_SET: %lu\n", t); |
87d1a50c MA |
383 | |
384 | /* Enable the output power */ | |
96a9cc68 | 385 | r = core->write(core, WL1273_POWER_ENB_SET, 1); |
87d1a50c MA |
386 | if (r) |
387 | return r; | |
388 | ||
16735d02 | 389 | reinit_completion(&radio->busy); |
87d1a50c MA |
390 | |
391 | /* wait for the POWER_ENB IRQ */ | |
daa939db NMG |
392 | t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); |
393 | if (!t) | |
87d1a50c MA |
394 | return -ETIMEDOUT; |
395 | ||
396 | radio->tx_frequency = freq; | |
daa939db | 397 | dev_dbg(radio->dev, "WL1273_POWER_ENB_SET: %lu\n", t); |
87d1a50c MA |
398 | |
399 | return 0; | |
400 | } | |
401 | ||
402 | static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq) | |
403 | { | |
404 | struct wl1273_core *core = radio->core; | |
405 | int r, f; | |
daa939db | 406 | unsigned long t; |
87d1a50c MA |
407 | |
408 | if (freq < radio->rangelow) { | |
409 | dev_err(radio->dev, | |
410 | "Frequency out of range: %d < %d\n", freq, | |
411 | radio->rangelow); | |
412 | r = -ERANGE; | |
413 | goto err; | |
414 | } | |
415 | ||
416 | if (freq > radio->rangehigh) { | |
417 | dev_err(radio->dev, | |
418 | "Frequency out of range: %d > %d\n", freq, | |
419 | radio->rangehigh); | |
420 | r = -ERANGE; | |
421 | goto err; | |
422 | } | |
423 | ||
424 | dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq); | |
425 | ||
96a9cc68 | 426 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
427 | |
428 | if (radio->band == WL1273_BAND_JAPAN) | |
429 | f = (freq - WL1273_BAND_JAPAN_LOW) / 50; | |
430 | else | |
431 | f = (freq - WL1273_BAND_OTHER_LOW) / 50; | |
432 | ||
96a9cc68 | 433 | r = core->write(core, WL1273_FREQ_SET, f); |
87d1a50c MA |
434 | if (r) { |
435 | dev_err(radio->dev, "FREQ_SET fails\n"); | |
436 | goto err; | |
437 | } | |
438 | ||
96a9cc68 | 439 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET); |
87d1a50c MA |
440 | if (r) { |
441 | dev_err(radio->dev, "TUNER_MODE_SET fails\n"); | |
442 | goto err; | |
443 | } | |
444 | ||
16735d02 | 445 | reinit_completion(&radio->busy); |
87d1a50c | 446 | |
daa939db NMG |
447 | t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); |
448 | if (!t) { | |
87d1a50c MA |
449 | dev_err(radio->dev, "%s: TIMEOUT\n", __func__); |
450 | return -ETIMEDOUT; | |
451 | } | |
452 | ||
453 | radio->rd_index = 0; | |
454 | radio->wr_index = 0; | |
455 | radio->rx_frequency = freq; | |
456 | return 0; | |
457 | err: | |
458 | return r; | |
459 | } | |
460 | ||
461 | static int wl1273_fm_get_freq(struct wl1273_device *radio) | |
462 | { | |
463 | struct wl1273_core *core = radio->core; | |
464 | unsigned int freq; | |
465 | u16 f; | |
466 | int r; | |
467 | ||
468 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 469 | r = core->read(core, WL1273_FREQ_SET, &f); |
87d1a50c MA |
470 | if (r) |
471 | return r; | |
472 | ||
473 | dev_dbg(radio->dev, "Freq get: 0x%04x\n", f); | |
474 | if (radio->band == WL1273_BAND_JAPAN) | |
475 | freq = WL1273_BAND_JAPAN_LOW + 50 * f; | |
476 | else | |
477 | freq = WL1273_BAND_OTHER_LOW + 50 * f; | |
478 | } else { | |
96a9cc68 | 479 | r = core->read(core, WL1273_CHANL_SET, &f); |
87d1a50c MA |
480 | if (r) |
481 | return r; | |
482 | ||
483 | freq = f * 10; | |
484 | } | |
485 | ||
486 | return freq; | |
487 | } | |
488 | ||
489 | /** | |
490 | * wl1273_fm_upload_firmware_patch() - Upload the firmware. | |
491 | * @radio: A pointer to the device struct. | |
492 | * | |
493 | * The firmware file consists of arrays of bytes where the first byte | |
494 | * gives the array length. The first byte in the file gives the | |
495 | * number of these arrays. | |
496 | */ | |
497 | static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio) | |
498 | { | |
499 | struct wl1273_core *core = radio->core; | |
500 | unsigned int packet_num; | |
501 | const struct firmware *fw_p; | |
502 | const char *fw_name = "radio-wl1273-fw.bin"; | |
503 | struct device *dev = radio->dev; | |
504 | __u8 *ptr; | |
fce50ac8 | 505 | int r; |
87d1a50c MA |
506 | |
507 | dev_dbg(dev, "%s:\n", __func__); | |
508 | ||
509 | /* | |
510 | * Uploading the firmware patch is not always necessary, | |
511 | * so we only print an info message. | |
512 | */ | |
513 | if (request_firmware(&fw_p, fw_name, dev)) { | |
514 | dev_info(dev, "%s - %s not found\n", __func__, fw_name); | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
519 | ptr = (__u8 *) fw_p->data; | |
520 | packet_num = ptr[0]; | |
521 | dev_dbg(dev, "%s: packets: %d\n", __func__, packet_num); | |
522 | ||
523 | r = wl1273_fm_write_fw(core, ptr + 1, packet_num); | |
524 | if (r) { | |
525 | dev_err(dev, "FW upload error: %d\n", r); | |
526 | goto out; | |
527 | } | |
528 | ||
529 | /* ignore possible error here */ | |
96a9cc68 | 530 | core->write(core, WL1273_RESET, 0); |
87d1a50c | 531 | |
87d1a50c MA |
532 | dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r); |
533 | out: | |
534 | release_firmware(fw_p); | |
535 | return r; | |
536 | } | |
537 | ||
538 | static int wl1273_fm_stop(struct wl1273_device *radio) | |
539 | { | |
540 | struct wl1273_core *core = radio->core; | |
541 | ||
542 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 543 | int r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
544 | WL1273_POWER_SET_OFF); |
545 | if (r) | |
546 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", | |
547 | __func__, r); | |
548 | } else if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
549 | int r = core->write(core, WL1273_PUPD_SET, |
550 | WL1273_PUPD_SET_OFF); | |
87d1a50c MA |
551 | if (r) |
552 | dev_err(radio->dev, | |
553 | "%s: PUPD_SET fails: %d\n", __func__, r); | |
554 | } | |
555 | ||
556 | if (core->pdata->disable) { | |
557 | core->pdata->disable(); | |
558 | dev_dbg(radio->dev, "Back to reset\n"); | |
559 | } | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | static int wl1273_fm_start(struct wl1273_device *radio, int new_mode) | |
565 | { | |
566 | struct wl1273_core *core = radio->core; | |
567 | struct wl1273_fm_platform_data *pdata = core->pdata; | |
568 | struct device *dev = radio->dev; | |
569 | int r = -EINVAL; | |
570 | ||
571 | if (pdata->enable && core->mode == WL1273_MODE_OFF) { | |
572 | dev_dbg(radio->dev, "Out of reset\n"); | |
573 | ||
574 | pdata->enable(); | |
575 | msleep(250); | |
576 | } | |
577 | ||
578 | if (new_mode == WL1273_MODE_RX) { | |
579 | u16 val = WL1273_POWER_SET_FM; | |
580 | ||
581 | if (radio->rds_on) | |
582 | val |= WL1273_POWER_SET_RDS; | |
583 | ||
584 | /* If this fails try again */ | |
96a9cc68 | 585 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
586 | if (r) { |
587 | msleep(100); | |
588 | ||
96a9cc68 | 589 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
590 | if (r) { |
591 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
592 | goto fail; | |
593 | } | |
594 | } | |
595 | ||
596 | /* rds buffer configuration */ | |
597 | radio->wr_index = 0; | |
598 | radio->rd_index = 0; | |
599 | ||
600 | } else if (new_mode == WL1273_MODE_TX) { | |
601 | /* If this fails try again once */ | |
96a9cc68 | 602 | r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON); |
87d1a50c MA |
603 | if (r) { |
604 | msleep(100); | |
96a9cc68 | 605 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
606 | WL1273_PUPD_SET_ON); |
607 | if (r) { | |
608 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
609 | goto fail; | |
610 | } | |
611 | } | |
612 | ||
613 | if (radio->rds_on) | |
96a9cc68 | 614 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c | 615 | else |
96a9cc68 | 616 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c MA |
617 | } else { |
618 | dev_warn(dev, "%s: Illegal mode.\n", __func__); | |
619 | } | |
620 | ||
621 | if (core->mode == WL1273_MODE_OFF) { | |
622 | r = wl1273_fm_upload_firmware_patch(radio); | |
623 | if (r) | |
624 | dev_warn(dev, "Firmware upload failed.\n"); | |
625 | ||
626 | /* | |
627 | * Sometimes the chip is in a wrong power state at this point. | |
628 | * So we set the power once again. | |
629 | */ | |
630 | if (new_mode == WL1273_MODE_RX) { | |
631 | u16 val = WL1273_POWER_SET_FM; | |
632 | ||
633 | if (radio->rds_on) | |
634 | val |= WL1273_POWER_SET_RDS; | |
635 | ||
96a9cc68 | 636 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
637 | if (r) { |
638 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
639 | goto fail; | |
640 | } | |
641 | } else if (new_mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
642 | r = core->write(core, WL1273_PUPD_SET, |
643 | WL1273_PUPD_SET_ON); | |
87d1a50c MA |
644 | if (r) { |
645 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
646 | goto fail; | |
647 | } | |
648 | } | |
649 | } | |
650 | ||
651 | return 0; | |
652 | fail: | |
653 | if (pdata->disable) | |
654 | pdata->disable(); | |
655 | ||
656 | dev_dbg(dev, "%s: return: %d\n", __func__, r); | |
657 | return r; | |
658 | } | |
659 | ||
660 | static int wl1273_fm_suspend(struct wl1273_device *radio) | |
661 | { | |
662 | struct wl1273_core *core = radio->core; | |
663 | int r = 0; | |
664 | ||
665 | /* Cannot go from OFF to SUSPENDED */ | |
666 | if (core->mode == WL1273_MODE_RX) | |
96a9cc68 | 667 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
668 | WL1273_POWER_SET_RETENTION); |
669 | else if (core->mode == WL1273_MODE_TX) | |
96a9cc68 | 670 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
671 | WL1273_PUPD_SET_RETENTION); |
672 | else | |
673 | r = -EINVAL; | |
674 | ||
675 | if (r) { | |
676 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", __func__, r); | |
677 | goto out; | |
678 | } | |
679 | ||
680 | out: | |
681 | return r; | |
682 | } | |
683 | ||
684 | static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode) | |
685 | { | |
686 | struct wl1273_core *core = radio->core; | |
687 | struct device *dev = radio->dev; | |
688 | int old_mode; | |
689 | int r; | |
690 | ||
691 | dev_dbg(dev, "%s\n", __func__); | |
692 | dev_dbg(dev, "Forbidden modes: 0x%02x\n", radio->forbidden); | |
693 | ||
694 | old_mode = core->mode; | |
695 | if (mode & radio->forbidden) { | |
696 | r = -EPERM; | |
697 | goto out; | |
698 | } | |
699 | ||
700 | switch (mode) { | |
701 | case WL1273_MODE_RX: | |
702 | case WL1273_MODE_TX: | |
703 | r = wl1273_fm_start(radio, mode); | |
704 | if (r) { | |
705 | dev_err(dev, "%s: Cannot start.\n", __func__); | |
706 | wl1273_fm_stop(radio); | |
707 | goto out; | |
708 | } | |
709 | ||
710 | core->mode = mode; | |
96a9cc68 | 711 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
712 | if (r) { |
713 | dev_err(dev, "INT_MASK_SET fails.\n"); | |
714 | goto out; | |
715 | } | |
716 | ||
717 | /* remember previous settings */ | |
718 | if (mode == WL1273_MODE_RX) { | |
719 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
720 | if (r) { | |
721 | dev_err(dev, "set freq fails: %d.\n", r); | |
722 | goto out; | |
723 | } | |
724 | ||
725 | r = core->set_volume(core, core->volume); | |
726 | if (r) { | |
727 | dev_err(dev, "set volume fails: %d.\n", r); | |
728 | goto out; | |
729 | } | |
730 | ||
731 | dev_dbg(dev, "%s: Set vol: %d.\n", __func__, | |
732 | core->volume); | |
733 | } else { | |
734 | r = wl1273_fm_set_tx_freq(radio, radio->tx_frequency); | |
735 | if (r) { | |
736 | dev_err(dev, "set freq fails: %d.\n", r); | |
737 | goto out; | |
738 | } | |
739 | } | |
740 | ||
741 | dev_dbg(radio->dev, "%s: Set audio mode.\n", __func__); | |
742 | ||
743 | r = core->set_audio(core, core->audio_mode); | |
744 | if (r) | |
745 | dev_err(dev, "Cannot set audio mode.\n"); | |
746 | break; | |
747 | ||
748 | case WL1273_MODE_OFF: | |
749 | r = wl1273_fm_stop(radio); | |
750 | if (r) | |
751 | dev_err(dev, "%s: Off fails: %d\n", __func__, r); | |
752 | else | |
753 | core->mode = WL1273_MODE_OFF; | |
754 | ||
755 | break; | |
756 | ||
757 | case WL1273_MODE_SUSPENDED: | |
758 | r = wl1273_fm_suspend(radio); | |
759 | if (r) | |
760 | dev_err(dev, "%s: Suspend fails: %d\n", __func__, r); | |
761 | else | |
762 | core->mode = WL1273_MODE_SUSPENDED; | |
763 | ||
764 | break; | |
765 | ||
766 | default: | |
767 | dev_err(dev, "%s: Unknown mode: %d\n", __func__, mode); | |
768 | r = -EINVAL; | |
769 | break; | |
770 | } | |
771 | out: | |
772 | if (r) | |
773 | core->mode = old_mode; | |
774 | ||
775 | return r; | |
776 | } | |
777 | ||
778 | static int wl1273_fm_set_seek(struct wl1273_device *radio, | |
779 | unsigned int wrap_around, | |
780 | unsigned int seek_upward, | |
781 | int level) | |
782 | { | |
783 | struct wl1273_core *core = radio->core; | |
784 | int r = 0; | |
785 | unsigned int dir = (seek_upward == 0) ? 0 : 1; | |
786 | unsigned int f; | |
787 | ||
788 | f = radio->rx_frequency; | |
789 | dev_dbg(radio->dev, "rx_frequency: %d\n", f); | |
790 | ||
791 | if (dir && f + radio->spacing <= radio->rangehigh) | |
792 | r = wl1273_fm_set_rx_freq(radio, f + radio->spacing); | |
793 | else if (dir && wrap_around) | |
794 | r = wl1273_fm_set_rx_freq(radio, radio->rangelow); | |
795 | else if (f - radio->spacing >= radio->rangelow) | |
796 | r = wl1273_fm_set_rx_freq(radio, f - radio->spacing); | |
797 | else if (wrap_around) | |
798 | r = wl1273_fm_set_rx_freq(radio, radio->rangehigh); | |
799 | ||
800 | if (r) | |
801 | goto out; | |
802 | ||
803 | if (level < SCHAR_MIN || level > SCHAR_MAX) | |
804 | return -EINVAL; | |
805 | ||
16735d02 | 806 | reinit_completion(&radio->busy); |
87d1a50c MA |
807 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); |
808 | ||
96a9cc68 | 809 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
810 | if (r) |
811 | goto out; | |
812 | ||
813 | dev_dbg(radio->dev, "%s\n", __func__); | |
814 | ||
96a9cc68 | 815 | r = core->write(core, WL1273_SEARCH_LVL_SET, level); |
87d1a50c MA |
816 | if (r) |
817 | goto out; | |
818 | ||
96a9cc68 | 819 | r = core->write(core, WL1273_SEARCH_DIR_SET, dir); |
87d1a50c MA |
820 | if (r) |
821 | goto out; | |
822 | ||
96a9cc68 | 823 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
824 | if (r) |
825 | goto out; | |
826 | ||
c973f76e | 827 | /* wait for the FR IRQ */ |
87d1a50c | 828 | wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); |
c973f76e NMG |
829 | if (!(radio->irq_received & WL1273_BL_EVENT)) { |
830 | r = -ETIMEDOUT; | |
87d1a50c | 831 | goto out; |
c973f76e | 832 | } |
87d1a50c MA |
833 | |
834 | radio->irq_received &= ~WL1273_BL_EVENT; | |
835 | ||
836 | if (!wrap_around) | |
837 | goto out; | |
838 | ||
839 | /* Wrap around */ | |
840 | dev_dbg(radio->dev, "Wrap around in HW seek.\n"); | |
841 | ||
842 | if (seek_upward) | |
843 | f = radio->rangelow; | |
844 | else | |
845 | f = radio->rangehigh; | |
846 | ||
847 | r = wl1273_fm_set_rx_freq(radio, f); | |
848 | if (r) | |
849 | goto out; | |
850 | ||
16735d02 | 851 | reinit_completion(&radio->busy); |
87d1a50c MA |
852 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); |
853 | ||
96a9cc68 | 854 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
855 | if (r) |
856 | goto out; | |
857 | ||
c973f76e NMG |
858 | /* wait for the FR IRQ */ |
859 | if (!wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000))) | |
860 | r = -ETIMEDOUT; | |
87d1a50c MA |
861 | out: |
862 | dev_dbg(radio->dev, "%s: Err: %d\n", __func__, r); | |
863 | return r; | |
864 | } | |
865 | ||
866 | /** | |
867 | * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value. | |
868 | * @radio: A pointer to the device struct. | |
869 | */ | |
870 | static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio) | |
871 | { | |
872 | struct wl1273_core *core = radio->core; | |
873 | struct device *dev = radio->dev; | |
874 | u16 val; | |
875 | int r; | |
876 | ||
877 | if (core->mode == WL1273_MODE_OFF || | |
878 | core->mode == WL1273_MODE_SUSPENDED) | |
879 | return -EPERM; | |
880 | ||
96a9cc68 | 881 | r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val); |
87d1a50c MA |
882 | if (r) { |
883 | dev_err(dev, "%s: read error: %d\n", __func__, r); | |
884 | goto out; | |
885 | } | |
886 | ||
887 | out: | |
888 | return val; | |
889 | } | |
890 | ||
891 | /** | |
892 | * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value. | |
893 | * @radio: A pointer to the device struct. | |
894 | * @preemphasis: The new pre-amphasis value. | |
895 | * | |
896 | * Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED, | |
897 | * V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS. | |
898 | */ | |
899 | static int wl1273_fm_set_preemphasis(struct wl1273_device *radio, | |
900 | unsigned int preemphasis) | |
901 | { | |
902 | struct wl1273_core *core = radio->core; | |
903 | int r; | |
904 | u16 em; | |
905 | ||
906 | if (core->mode == WL1273_MODE_OFF || | |
907 | core->mode == WL1273_MODE_SUSPENDED) | |
908 | return -EPERM; | |
909 | ||
910 | mutex_lock(&core->lock); | |
911 | ||
912 | switch (preemphasis) { | |
913 | case V4L2_PREEMPHASIS_DISABLED: | |
914 | em = 1; | |
915 | break; | |
916 | case V4L2_PREEMPHASIS_50_uS: | |
917 | em = 0; | |
918 | break; | |
919 | case V4L2_PREEMPHASIS_75_uS: | |
920 | em = 2; | |
921 | break; | |
922 | default: | |
923 | r = -EINVAL; | |
924 | goto out; | |
925 | } | |
926 | ||
96a9cc68 | 927 | r = core->write(core, WL1273_PREMPH_SET, em); |
87d1a50c MA |
928 | if (r) |
929 | goto out; | |
930 | ||
931 | radio->preemphasis = preemphasis; | |
932 | ||
933 | out: | |
934 | mutex_unlock(&core->lock); | |
935 | return r; | |
936 | } | |
937 | ||
938 | static int wl1273_fm_rds_on(struct wl1273_device *radio) | |
939 | { | |
940 | struct wl1273_core *core = radio->core; | |
941 | int r; | |
942 | ||
943 | dev_dbg(radio->dev, "%s\n", __func__); | |
944 | if (radio->rds_on) | |
945 | return 0; | |
946 | ||
96a9cc68 | 947 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
948 | WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS); |
949 | if (r) | |
950 | goto out; | |
951 | ||
952 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
953 | if (r) | |
954 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
955 | out: | |
956 | return r; | |
957 | } | |
958 | ||
959 | static int wl1273_fm_rds_off(struct wl1273_device *radio) | |
960 | { | |
961 | struct wl1273_core *core = radio->core; | |
962 | int r; | |
963 | ||
964 | if (!radio->rds_on) | |
965 | return 0; | |
966 | ||
967 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
968 | ||
96a9cc68 | 969 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
970 | if (r) |
971 | goto out; | |
972 | ||
87d1a50c MA |
973 | /* Service pending read */ |
974 | wake_up_interruptible(&radio->read_queue); | |
975 | ||
976 | dev_dbg(radio->dev, "%s\n", __func__); | |
977 | ||
96a9cc68 | 978 | r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM); |
87d1a50c MA |
979 | if (r) |
980 | goto out; | |
981 | ||
982 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
983 | if (r) | |
984 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
985 | out: | |
986 | dev_dbg(radio->dev, "%s: exiting...\n", __func__); | |
987 | ||
988 | return r; | |
989 | } | |
990 | ||
991 | static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode) | |
992 | { | |
993 | int r = 0; | |
994 | struct wl1273_core *core = radio->core; | |
995 | ||
996 | if (core->mode == WL1273_MODE_OFF || | |
997 | core->mode == WL1273_MODE_SUSPENDED) | |
998 | return -EPERM; | |
999 | ||
1000 | if (new_mode == WL1273_RDS_RESET) { | |
96a9cc68 | 1001 | r = core->write(core, WL1273_RDS_CNTRL_SET, 1); |
87d1a50c MA |
1002 | return r; |
1003 | } | |
1004 | ||
1005 | if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) { | |
96a9cc68 | 1006 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c | 1007 | } else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) { |
96a9cc68 | 1008 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c MA |
1009 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) { |
1010 | r = wl1273_fm_rds_off(radio); | |
1011 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) { | |
1012 | r = wl1273_fm_rds_on(radio); | |
1013 | } else { | |
1014 | dev_err(radio->dev, "%s: Unknown mode: %d\n", | |
1015 | __func__, new_mode); | |
1016 | r = -EINVAL; | |
1017 | } | |
1018 | ||
1019 | if (!r) | |
1020 | radio->rds_on = (new_mode == WL1273_RDS_ON) ? true : false; | |
1021 | ||
1022 | return r; | |
1023 | } | |
1024 | ||
1025 | static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf, | |
1026 | size_t count, loff_t *ppos) | |
1027 | { | |
1028 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
96a9cc68 | 1029 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1030 | u16 val; |
1031 | int r; | |
1032 | ||
1033 | dev_dbg(radio->dev, "%s\n", __func__); | |
1034 | ||
96a9cc68 | 1035 | if (core->mode != WL1273_MODE_TX) |
87d1a50c MA |
1036 | return count; |
1037 | ||
1038 | if (radio->rds_users == 0) { | |
1039 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1040 | return 0; | |
1041 | } | |
1042 | ||
96a9cc68 | 1043 | if (mutex_lock_interruptible(&core->lock)) |
87d1a50c MA |
1044 | return -EINTR; |
1045 | /* | |
1046 | * Multiple processes can open the device, but only | |
1047 | * one gets to write to it. | |
1048 | */ | |
1049 | if (radio->owner && radio->owner != file) { | |
1050 | r = -EBUSY; | |
1051 | goto out; | |
1052 | } | |
1053 | radio->owner = file; | |
1054 | ||
1055 | /* Manual Mode */ | |
1056 | if (count > 255) | |
1057 | val = 255; | |
1058 | else | |
1059 | val = count; | |
1060 | ||
96a9cc68 | 1061 | core->write(core, WL1273_RDS_CONFIG_DATA_SET, val); |
87d1a50c MA |
1062 | |
1063 | if (copy_from_user(radio->write_buf + 1, buf, val)) { | |
1064 | r = -EFAULT; | |
1065 | goto out; | |
1066 | } | |
1067 | ||
1068 | dev_dbg(radio->dev, "Count: %d\n", val); | |
1069 | dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf); | |
1070 | ||
1071 | radio->write_buf[0] = WL1273_RDS_DATA_SET; | |
96a9cc68 | 1072 | core->write_data(core, radio->write_buf, val + 1); |
87d1a50c MA |
1073 | |
1074 | r = val; | |
1075 | out: | |
96a9cc68 | 1076 | mutex_unlock(&core->lock); |
87d1a50c MA |
1077 | |
1078 | return r; | |
1079 | } | |
1080 | ||
1081 | static unsigned int wl1273_fm_fops_poll(struct file *file, | |
1082 | struct poll_table_struct *pts) | |
1083 | { | |
1084 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1085 | struct wl1273_core *core = radio->core; | |
1086 | ||
1087 | if (radio->owner && radio->owner != file) | |
1088 | return -EBUSY; | |
1089 | ||
1090 | radio->owner = file; | |
1091 | ||
1092 | if (core->mode == WL1273_MODE_RX) { | |
1093 | poll_wait(file, &radio->read_queue, pts); | |
1094 | ||
1095 | if (radio->rd_index != radio->wr_index) | |
1096 | return POLLIN | POLLRDNORM; | |
1097 | ||
1098 | } else if (core->mode == WL1273_MODE_TX) { | |
1099 | return POLLOUT | POLLWRNORM; | |
1100 | } | |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | static int wl1273_fm_fops_open(struct file *file) | |
1106 | { | |
1107 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1108 | struct wl1273_core *core = radio->core; | |
1109 | int r = 0; | |
1110 | ||
1111 | dev_dbg(radio->dev, "%s\n", __func__); | |
1112 | ||
1113 | if (core->mode == WL1273_MODE_RX && radio->rds_on && | |
1114 | !radio->rds_users) { | |
1115 | dev_dbg(radio->dev, "%s: Mode: %d\n", __func__, core->mode); | |
1116 | ||
1117 | if (mutex_lock_interruptible(&core->lock)) | |
1118 | return -EINTR; | |
1119 | ||
1120 | radio->irq_flags |= WL1273_RDS_EVENT; | |
1121 | ||
96a9cc68 MA |
1122 | r = core->write(core, WL1273_INT_MASK_SET, |
1123 | radio->irq_flags); | |
87d1a50c MA |
1124 | if (r) { |
1125 | mutex_unlock(&core->lock); | |
1126 | goto out; | |
1127 | } | |
1128 | ||
1129 | radio->rds_users++; | |
1130 | ||
1131 | mutex_unlock(&core->lock); | |
1132 | } | |
1133 | out: | |
1134 | return r; | |
1135 | } | |
1136 | ||
1137 | static int wl1273_fm_fops_release(struct file *file) | |
1138 | { | |
1139 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1140 | struct wl1273_core *core = radio->core; | |
1141 | int r = 0; | |
1142 | ||
1143 | dev_dbg(radio->dev, "%s\n", __func__); | |
1144 | ||
1145 | if (radio->rds_users > 0) { | |
1146 | radio->rds_users--; | |
1147 | if (radio->rds_users == 0) { | |
1148 | if (mutex_lock_interruptible(&core->lock)) | |
1149 | return -EINTR; | |
1150 | ||
1151 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
1152 | ||
1153 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
1154 | r = core->write(core, |
1155 | WL1273_INT_MASK_SET, | |
1156 | radio->irq_flags); | |
87d1a50c MA |
1157 | if (r) { |
1158 | mutex_unlock(&core->lock); | |
1159 | goto out; | |
1160 | } | |
1161 | } | |
1162 | mutex_unlock(&core->lock); | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | if (file == radio->owner) | |
1167 | radio->owner = NULL; | |
1168 | out: | |
1169 | return r; | |
1170 | } | |
1171 | ||
1172 | static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf, | |
1173 | size_t count, loff_t *ppos) | |
1174 | { | |
1175 | int r = 0; | |
1176 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1177 | struct wl1273_core *core = radio->core; | |
1178 | unsigned int block_count = 0; | |
1179 | u16 val; | |
1180 | ||
1181 | dev_dbg(radio->dev, "%s\n", __func__); | |
1182 | ||
96a9cc68 | 1183 | if (core->mode != WL1273_MODE_RX) |
87d1a50c MA |
1184 | return 0; |
1185 | ||
1186 | if (radio->rds_users == 0) { | |
1187 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | if (mutex_lock_interruptible(&core->lock)) | |
1192 | return -EINTR; | |
1193 | ||
1194 | /* | |
1195 | * Multiple processes can open the device, but only | |
1196 | * one at a time gets read access. | |
1197 | */ | |
1198 | if (radio->owner && radio->owner != file) { | |
1199 | r = -EBUSY; | |
1200 | goto out; | |
1201 | } | |
1202 | radio->owner = file; | |
1203 | ||
96a9cc68 | 1204 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1205 | if (r) { |
1206 | dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__); | |
1207 | goto out; | |
1208 | } else if (val == 0) { | |
1209 | dev_info(radio->dev, "RDS_SYNC: Not synchronized\n"); | |
1210 | r = -ENODATA; | |
1211 | goto out; | |
1212 | } | |
1213 | ||
1214 | /* block if no new data available */ | |
1215 | while (radio->wr_index == radio->rd_index) { | |
1216 | if (file->f_flags & O_NONBLOCK) { | |
1217 | r = -EWOULDBLOCK; | |
1218 | goto out; | |
1219 | } | |
1220 | ||
1221 | dev_dbg(radio->dev, "%s: Wait for RDS data.\n", __func__); | |
1222 | if (wait_event_interruptible(radio->read_queue, | |
1223 | radio->wr_index != | |
1224 | radio->rd_index) < 0) { | |
1225 | r = -EINTR; | |
1226 | goto out; | |
1227 | } | |
1228 | } | |
1229 | ||
1230 | /* calculate block count from byte count */ | |
1231 | count /= RDS_BLOCK_SIZE; | |
1232 | ||
1233 | /* copy RDS blocks from the internal buffer and to user buffer */ | |
1234 | while (block_count < count) { | |
1235 | if (radio->rd_index == radio->wr_index) | |
1236 | break; | |
1237 | ||
1238 | /* always transfer complete RDS blocks */ | |
1239 | if (copy_to_user(buf, &radio->buffer[radio->rd_index], | |
1240 | RDS_BLOCK_SIZE)) | |
1241 | break; | |
1242 | ||
1243 | /* increment and wrap the read pointer */ | |
1244 | radio->rd_index += RDS_BLOCK_SIZE; | |
1245 | if (radio->rd_index >= radio->buf_size) | |
1246 | radio->rd_index = 0; | |
1247 | ||
1248 | /* increment counters */ | |
1249 | block_count++; | |
1250 | buf += RDS_BLOCK_SIZE; | |
1251 | r += RDS_BLOCK_SIZE; | |
1252 | } | |
1253 | ||
1254 | out: | |
1255 | dev_dbg(radio->dev, "%s: exit\n", __func__); | |
1256 | mutex_unlock(&core->lock); | |
1257 | ||
1258 | return r; | |
1259 | } | |
1260 | ||
1261 | static const struct v4l2_file_operations wl1273_fops = { | |
1262 | .owner = THIS_MODULE, | |
1263 | .read = wl1273_fm_fops_read, | |
1264 | .write = wl1273_fm_fops_write, | |
1265 | .poll = wl1273_fm_fops_poll, | |
34b8fc8e | 1266 | .unlocked_ioctl = video_ioctl2, |
87d1a50c MA |
1267 | .open = wl1273_fm_fops_open, |
1268 | .release = wl1273_fm_fops_release, | |
1269 | }; | |
1270 | ||
1271 | static int wl1273_fm_vidioc_querycap(struct file *file, void *priv, | |
1272 | struct v4l2_capability *capability) | |
1273 | { | |
1274 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1275 | ||
1276 | dev_dbg(radio->dev, "%s\n", __func__); | |
1277 | ||
1278 | strlcpy(capability->driver, WL1273_FM_DRIVER_NAME, | |
1279 | sizeof(capability->driver)); | |
1280 | strlcpy(capability->card, "Texas Instruments Wl1273 FM Radio", | |
1281 | sizeof(capability->card)); | |
1282 | strlcpy(capability->bus_info, radio->bus_type, | |
1283 | sizeof(capability->bus_info)); | |
1284 | ||
7027c448 | 1285 | capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | |
87d1a50c MA |
1286 | V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_AUDIO | |
1287 | V4L2_CAP_RDS_CAPTURE | V4L2_CAP_MODULATOR | | |
1288 | V4L2_CAP_RDS_OUTPUT; | |
7027c448 HV |
1289 | capability->capabilities = capability->device_caps | |
1290 | V4L2_CAP_DEVICE_CAPS; | |
87d1a50c MA |
1291 | |
1292 | return 0; | |
1293 | } | |
1294 | ||
1295 | static int wl1273_fm_vidioc_g_input(struct file *file, void *priv, | |
1296 | unsigned int *i) | |
1297 | { | |
1298 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1299 | ||
1300 | dev_dbg(radio->dev, "%s\n", __func__); | |
1301 | ||
1302 | *i = 0; | |
1303 | ||
1304 | return 0; | |
1305 | } | |
1306 | ||
1307 | static int wl1273_fm_vidioc_s_input(struct file *file, void *priv, | |
1308 | unsigned int i) | |
1309 | { | |
1310 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1311 | ||
1312 | dev_dbg(radio->dev, "%s\n", __func__); | |
1313 | ||
1314 | if (i != 0) | |
1315 | return -EINVAL; | |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
1320 | /** | |
1321 | * wl1273_fm_set_tx_power() - Set the transmission power value. | |
1322 | * @core: A pointer to the device struct. | |
1323 | * @power: The new power value. | |
1324 | */ | |
1325 | static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) | |
1326 | { | |
96a9cc68 | 1327 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1328 | int r; |
1329 | ||
96a9cc68 MA |
1330 | if (core->mode == WL1273_MODE_OFF || |
1331 | core->mode == WL1273_MODE_SUSPENDED) | |
87d1a50c MA |
1332 | return -EPERM; |
1333 | ||
96a9cc68 | 1334 | mutex_lock(&core->lock); |
87d1a50c MA |
1335 | |
1336 | /* Convert the dBuV value to chip presentation */ | |
96a9cc68 | 1337 | r = core->write(core, WL1273_POWER_LEV_SET, 122 - power); |
87d1a50c MA |
1338 | if (r) |
1339 | goto out; | |
1340 | ||
1341 | radio->tx_power = power; | |
1342 | ||
1343 | out: | |
96a9cc68 | 1344 | mutex_unlock(&core->lock); |
87d1a50c MA |
1345 | return r; |
1346 | } | |
1347 | ||
1348 | #define WL1273_SPACING_50kHz 1 | |
1349 | #define WL1273_SPACING_100kHz 2 | |
1350 | #define WL1273_SPACING_200kHz 4 | |
1351 | ||
1352 | static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio, | |
1353 | unsigned int spacing) | |
1354 | { | |
96a9cc68 | 1355 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1356 | int r; |
1357 | ||
1358 | if (spacing == 0) { | |
96a9cc68 MA |
1359 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1360 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1361 | radio->spacing = 100; |
1362 | } else if (spacing - 50000 < 25000) { | |
96a9cc68 MA |
1363 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1364 | WL1273_SPACING_50kHz); | |
87d1a50c MA |
1365 | radio->spacing = 50; |
1366 | } else if (spacing - 100000 < 50000) { | |
96a9cc68 MA |
1367 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1368 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1369 | radio->spacing = 100; |
1370 | } else { | |
96a9cc68 MA |
1371 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1372 | WL1273_SPACING_200kHz); | |
87d1a50c MA |
1373 | radio->spacing = 200; |
1374 | } | |
1375 | ||
1376 | return r; | |
1377 | } | |
1378 | ||
1379 | static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl) | |
1380 | { | |
1381 | struct wl1273_device *radio = ctrl->priv; | |
1382 | struct wl1273_core *core = radio->core; | |
1383 | ||
1384 | dev_dbg(radio->dev, "%s\n", __func__); | |
1385 | ||
1386 | if (mutex_lock_interruptible(&core->lock)) | |
1387 | return -EINTR; | |
1388 | ||
1389 | switch (ctrl->id) { | |
1390 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
ddac5c10 | 1391 | ctrl->val = wl1273_fm_get_tx_ctune(radio); |
87d1a50c MA |
1392 | break; |
1393 | ||
1394 | default: | |
1395 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1396 | __func__, ctrl->id); | |
1397 | break; | |
1398 | } | |
1399 | ||
1400 | mutex_unlock(&core->lock); | |
1401 | ||
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | #define WL1273_MUTE_SOFT_ENABLE (1 << 0) | |
1406 | #define WL1273_MUTE_AC (1 << 1) | |
1407 | #define WL1273_MUTE_HARD_LEFT (1 << 2) | |
1408 | #define WL1273_MUTE_HARD_RIGHT (1 << 3) | |
1409 | #define WL1273_MUTE_SOFT_FORCE (1 << 4) | |
1410 | ||
1411 | static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl) | |
1412 | { | |
1413 | return container_of(ctrl->handler, struct wl1273_device, ctrl_handler); | |
1414 | } | |
1415 | ||
1416 | static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl) | |
1417 | { | |
1418 | struct wl1273_device *radio = to_radio(ctrl); | |
1419 | struct wl1273_core *core = radio->core; | |
1420 | int r = 0; | |
1421 | ||
1422 | dev_dbg(radio->dev, "%s\n", __func__); | |
1423 | ||
1424 | switch (ctrl->id) { | |
1425 | case V4L2_CID_AUDIO_MUTE: | |
1426 | if (mutex_lock_interruptible(&core->lock)) | |
1427 | return -EINTR; | |
1428 | ||
1429 | if (core->mode == WL1273_MODE_RX && ctrl->val) | |
96a9cc68 MA |
1430 | r = core->write(core, |
1431 | WL1273_MUTE_STATUS_SET, | |
1432 | WL1273_MUTE_HARD_LEFT | | |
1433 | WL1273_MUTE_HARD_RIGHT); | |
87d1a50c | 1434 | else if (core->mode == WL1273_MODE_RX) |
96a9cc68 MA |
1435 | r = core->write(core, |
1436 | WL1273_MUTE_STATUS_SET, 0x0); | |
87d1a50c | 1437 | else if (core->mode == WL1273_MODE_TX && ctrl->val) |
96a9cc68 | 1438 | r = core->write(core, WL1273_MUTE, 1); |
87d1a50c | 1439 | else if (core->mode == WL1273_MODE_TX) |
96a9cc68 | 1440 | r = core->write(core, WL1273_MUTE, 0); |
87d1a50c MA |
1441 | |
1442 | mutex_unlock(&core->lock); | |
1443 | break; | |
1444 | ||
1445 | case V4L2_CID_AUDIO_VOLUME: | |
1446 | if (ctrl->val == 0) | |
1447 | r = wl1273_fm_set_mode(radio, WL1273_MODE_OFF); | |
1448 | else | |
1449 | r = core->set_volume(core, core->volume); | |
1450 | break; | |
1451 | ||
1452 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1453 | r = wl1273_fm_set_preemphasis(radio, ctrl->val); | |
1454 | break; | |
1455 | ||
1456 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1457 | r = wl1273_fm_set_tx_power(radio, ctrl->val); | |
1458 | break; | |
1459 | ||
1460 | default: | |
1461 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1462 | __func__, ctrl->id); | |
1463 | break; | |
1464 | } | |
1465 | ||
1466 | dev_dbg(radio->dev, "%s\n", __func__); | |
1467 | return r; | |
1468 | } | |
1469 | ||
1470 | static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv, | |
1471 | struct v4l2_audio *audio) | |
1472 | { | |
1473 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1474 | ||
1475 | dev_dbg(radio->dev, "%s\n", __func__); | |
1476 | ||
1477 | if (audio->index > 1) | |
1478 | return -EINVAL; | |
1479 | ||
1480 | strlcpy(audio->name, "Radio", sizeof(audio->name)); | |
1481 | audio->capability = V4L2_AUDCAP_STEREO; | |
1482 | ||
1483 | return 0; | |
1484 | } | |
1485 | ||
1486 | static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv, | |
0e8025b9 | 1487 | const struct v4l2_audio *audio) |
87d1a50c MA |
1488 | { |
1489 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1490 | ||
1491 | dev_dbg(radio->dev, "%s\n", __func__); | |
1492 | ||
1493 | if (audio->index != 0) | |
1494 | return -EINVAL; | |
1495 | ||
1496 | return 0; | |
1497 | } | |
1498 | ||
1499 | #define WL1273_RDS_NOT_SYNCHRONIZED 0 | |
1500 | #define WL1273_RDS_SYNCHRONIZED 1 | |
1501 | ||
1502 | static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, | |
1503 | struct v4l2_tuner *tuner) | |
1504 | { | |
1505 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1506 | struct wl1273_core *core = radio->core; | |
1507 | u16 val; | |
1508 | int r; | |
1509 | ||
1510 | dev_dbg(radio->dev, "%s\n", __func__); | |
1511 | ||
1512 | if (tuner->index > 0) | |
1513 | return -EINVAL; | |
1514 | ||
1515 | strlcpy(tuner->name, WL1273_FM_DRIVER_NAME, sizeof(tuner->name)); | |
1516 | tuner->type = V4L2_TUNER_RADIO; | |
1517 | ||
1518 | tuner->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1519 | tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1520 | ||
1521 | tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
54f6019b HV |
1522 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO | |
1523 | V4L2_TUNER_CAP_HWSEEK_BOUNDED | V4L2_TUNER_CAP_HWSEEK_WRAP; | |
87d1a50c MA |
1524 | |
1525 | if (radio->stereo) | |
1526 | tuner->audmode = V4L2_TUNER_MODE_STEREO; | |
1527 | else | |
1528 | tuner->audmode = V4L2_TUNER_MODE_MONO; | |
1529 | ||
1530 | if (core->mode != WL1273_MODE_RX) | |
1531 | return 0; | |
1532 | ||
1533 | if (mutex_lock_interruptible(&core->lock)) | |
1534 | return -EINTR; | |
1535 | ||
96a9cc68 | 1536 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1537 | if (r) |
1538 | goto out; | |
1539 | ||
1540 | if (val == 1) | |
1541 | tuner->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
1542 | else | |
1543 | tuner->rxsubchans = V4L2_TUNER_SUB_MONO; | |
1544 | ||
96a9cc68 | 1545 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1546 | if (r) |
1547 | goto out; | |
1548 | ||
1549 | tuner->signal = (s16) val; | |
1550 | dev_dbg(radio->dev, "Signal: %d\n", tuner->signal); | |
1551 | ||
1552 | tuner->afc = 0; | |
1553 | ||
96a9cc68 | 1554 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1555 | if (r) |
1556 | goto out; | |
1557 | ||
1558 | if (val == WL1273_RDS_SYNCHRONIZED) | |
1559 | tuner->rxsubchans |= V4L2_TUNER_SUB_RDS; | |
1560 | out: | |
1561 | mutex_unlock(&core->lock); | |
1562 | ||
1563 | return r; | |
1564 | } | |
1565 | ||
1566 | static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv, | |
2f73c7c5 | 1567 | const struct v4l2_tuner *tuner) |
87d1a50c MA |
1568 | { |
1569 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1570 | struct wl1273_core *core = radio->core; | |
1571 | int r = 0; | |
1572 | ||
1573 | dev_dbg(radio->dev, "%s\n", __func__); | |
1574 | dev_dbg(radio->dev, "tuner->index: %d\n", tuner->index); | |
1575 | dev_dbg(radio->dev, "tuner->name: %s\n", tuner->name); | |
1576 | dev_dbg(radio->dev, "tuner->capability: 0x%04x\n", tuner->capability); | |
1577 | dev_dbg(radio->dev, "tuner->rxsubchans: 0x%04x\n", tuner->rxsubchans); | |
1578 | dev_dbg(radio->dev, "tuner->rangelow: %d\n", tuner->rangelow); | |
1579 | dev_dbg(radio->dev, "tuner->rangehigh: %d\n", tuner->rangehigh); | |
1580 | ||
1581 | if (tuner->index > 0) | |
1582 | return -EINVAL; | |
1583 | ||
1584 | if (mutex_lock_interruptible(&core->lock)) | |
1585 | return -EINTR; | |
1586 | ||
1587 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1588 | if (r) | |
1589 | goto out; | |
1590 | ||
1591 | if (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) | |
1592 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1593 | else | |
1594 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1595 | ||
1596 | if (r) | |
1597 | dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r); | |
1598 | ||
1599 | if (tuner->audmode == V4L2_TUNER_MODE_MONO) { | |
96a9cc68 | 1600 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO); |
87d1a50c MA |
1601 | if (r < 0) { |
1602 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1603 | __func__, r); | |
1604 | goto out; | |
1605 | } | |
1606 | radio->stereo = false; | |
1607 | } else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) { | |
96a9cc68 | 1608 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO); |
87d1a50c MA |
1609 | if (r < 0) { |
1610 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1611 | __func__, r); | |
1612 | goto out; | |
1613 | } | |
1614 | radio->stereo = true; | |
1615 | } else { | |
1616 | dev_err(radio->dev, "%s: tuner->audmode: %d\n", | |
1617 | __func__, tuner->audmode); | |
1618 | r = -EINVAL; | |
1619 | goto out; | |
1620 | } | |
1621 | ||
1622 | out: | |
1623 | mutex_unlock(&core->lock); | |
1624 | ||
1625 | return r; | |
1626 | } | |
1627 | ||
1628 | static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv, | |
1629 | struct v4l2_frequency *freq) | |
1630 | { | |
1631 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1632 | struct wl1273_core *core = radio->core; | |
1633 | ||
1634 | dev_dbg(radio->dev, "%s\n", __func__); | |
1635 | ||
1636 | if (mutex_lock_interruptible(&core->lock)) | |
1637 | return -EINTR; | |
1638 | ||
1639 | freq->type = V4L2_TUNER_RADIO; | |
1640 | freq->frequency = WL1273_FREQ(wl1273_fm_get_freq(radio)); | |
1641 | ||
1642 | mutex_unlock(&core->lock); | |
1643 | ||
1644 | return 0; | |
1645 | } | |
1646 | ||
1647 | static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv, | |
b530a447 | 1648 | const struct v4l2_frequency *freq) |
87d1a50c MA |
1649 | { |
1650 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1651 | struct wl1273_core *core = radio->core; | |
1652 | int r; | |
1653 | ||
1654 | dev_dbg(radio->dev, "%s: %d\n", __func__, freq->frequency); | |
1655 | ||
1656 | if (freq->type != V4L2_TUNER_RADIO) { | |
1657 | dev_dbg(radio->dev, | |
1658 | "freq->type != V4L2_TUNER_RADIO: %d\n", freq->type); | |
1659 | return -EINVAL; | |
1660 | } | |
1661 | ||
1662 | if (mutex_lock_interruptible(&core->lock)) | |
1663 | return -EINTR; | |
1664 | ||
1665 | if (core->mode == WL1273_MODE_RX) { | |
1666 | dev_dbg(radio->dev, "freq: %d\n", freq->frequency); | |
1667 | ||
1668 | r = wl1273_fm_set_rx_freq(radio, | |
1669 | WL1273_INV_FREQ(freq->frequency)); | |
1670 | if (r) | |
1671 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1672 | ": set frequency failed with %d\n", r); | |
1673 | } else { | |
1674 | r = wl1273_fm_set_tx_freq(radio, | |
1675 | WL1273_INV_FREQ(freq->frequency)); | |
1676 | if (r) | |
1677 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1678 | ": set frequency failed with %d\n", r); | |
1679 | } | |
1680 | ||
1681 | mutex_unlock(&core->lock); | |
1682 | ||
1683 | dev_dbg(radio->dev, "wl1273_vidioc_s_frequency: DONE\n"); | |
1684 | return r; | |
1685 | } | |
1686 | ||
1687 | #define WL1273_DEFAULT_SEEK_LEVEL 7 | |
1688 | ||
1689 | static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv, | |
ec6f4328 | 1690 | const struct v4l2_hw_freq_seek *seek) |
87d1a50c MA |
1691 | { |
1692 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1693 | struct wl1273_core *core = radio->core; | |
1694 | int r; | |
1695 | ||
1696 | dev_dbg(radio->dev, "%s\n", __func__); | |
1697 | ||
1698 | if (seek->tuner != 0 || seek->type != V4L2_TUNER_RADIO) | |
1699 | return -EINVAL; | |
1700 | ||
617ade61 HV |
1701 | if (file->f_flags & O_NONBLOCK) |
1702 | return -EWOULDBLOCK; | |
1703 | ||
87d1a50c MA |
1704 | if (mutex_lock_interruptible(&core->lock)) |
1705 | return -EINTR; | |
1706 | ||
1707 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1708 | if (r) | |
1709 | goto out; | |
1710 | ||
1711 | r = wl1273_fm_tx_set_spacing(radio, seek->spacing); | |
1712 | if (r) | |
1713 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1714 | ||
1715 | r = wl1273_fm_set_seek(radio, seek->wrap_around, seek->seek_upward, | |
1716 | WL1273_DEFAULT_SEEK_LEVEL); | |
1717 | if (r) | |
1718 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1719 | ||
1720 | out: | |
1721 | mutex_unlock(&core->lock); | |
1722 | return r; | |
1723 | } | |
1724 | ||
1725 | static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv, | |
3f70e1f5 | 1726 | const struct v4l2_modulator *modulator) |
87d1a50c MA |
1727 | { |
1728 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1729 | struct wl1273_core *core = radio->core; | |
1730 | int r = 0; | |
1731 | ||
1732 | dev_dbg(radio->dev, "%s\n", __func__); | |
1733 | ||
1734 | if (modulator->index > 0) | |
1735 | return -EINVAL; | |
1736 | ||
1737 | if (mutex_lock_interruptible(&core->lock)) | |
1738 | return -EINTR; | |
1739 | ||
1740 | r = wl1273_fm_set_mode(radio, WL1273_MODE_TX); | |
1741 | if (r) | |
1742 | goto out; | |
1743 | ||
1744 | if (modulator->txsubchans & V4L2_TUNER_SUB_RDS) | |
1745 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1746 | else | |
1747 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1748 | ||
1749 | if (modulator->txsubchans & V4L2_TUNER_SUB_MONO) | |
96a9cc68 | 1750 | r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO); |
87d1a50c | 1751 | else |
96a9cc68 MA |
1752 | r = core->write(core, WL1273_MONO_SET, |
1753 | WL1273_RX_STEREO); | |
87d1a50c MA |
1754 | if (r < 0) |
1755 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1756 | "MONO_SET fails: %d\n", r); | |
1757 | out: | |
1758 | mutex_unlock(&core->lock); | |
1759 | ||
1760 | return r; | |
1761 | } | |
1762 | ||
1763 | static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv, | |
1764 | struct v4l2_modulator *modulator) | |
1765 | { | |
1766 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1767 | struct wl1273_core *core = radio->core; | |
1768 | u16 val; | |
1769 | int r; | |
1770 | ||
1771 | dev_dbg(radio->dev, "%s\n", __func__); | |
1772 | ||
1773 | strlcpy(modulator->name, WL1273_FM_DRIVER_NAME, | |
1774 | sizeof(modulator->name)); | |
1775 | ||
1776 | modulator->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1777 | modulator->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1778 | ||
1779 | modulator->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
1780 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; | |
1781 | ||
1782 | if (core->mode != WL1273_MODE_TX) | |
1783 | return 0; | |
1784 | ||
1785 | if (mutex_lock_interruptible(&core->lock)) | |
1786 | return -EINTR; | |
1787 | ||
96a9cc68 | 1788 | r = core->read(core, WL1273_MONO_SET, &val); |
87d1a50c MA |
1789 | if (r) |
1790 | goto out; | |
1791 | ||
1792 | if (val == WL1273_TX_STEREO) | |
1793 | modulator->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1794 | else | |
1795 | modulator->txsubchans = V4L2_TUNER_SUB_MONO; | |
1796 | ||
1797 | if (radio->rds_on) | |
1798 | modulator->txsubchans |= V4L2_TUNER_SUB_RDS; | |
1799 | out: | |
1800 | mutex_unlock(&core->lock); | |
1801 | ||
1802 | return 0; | |
1803 | } | |
1804 | ||
1805 | static int wl1273_fm_vidioc_log_status(struct file *file, void *priv) | |
1806 | { | |
1807 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1808 | struct wl1273_core *core = radio->core; | |
1809 | struct device *dev = radio->dev; | |
1810 | u16 val; | |
1811 | int r; | |
1812 | ||
1813 | dev_info(dev, DRIVER_DESC); | |
1814 | ||
1815 | if (core->mode == WL1273_MODE_OFF) { | |
1816 | dev_info(dev, "Mode: Off\n"); | |
1817 | return 0; | |
1818 | } | |
1819 | ||
1820 | if (core->mode == WL1273_MODE_SUSPENDED) { | |
1821 | dev_info(dev, "Mode: Suspended\n"); | |
1822 | return 0; | |
1823 | } | |
1824 | ||
96a9cc68 | 1825 | r = core->read(core, WL1273_ASIC_ID_GET, &val); |
87d1a50c MA |
1826 | if (r) |
1827 | dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__); | |
1828 | else | |
1829 | dev_info(dev, "ASIC_ID: 0x%04x\n", val); | |
1830 | ||
96a9cc68 | 1831 | r = core->read(core, WL1273_ASIC_VER_GET, &val); |
87d1a50c MA |
1832 | if (r) |
1833 | dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__); | |
1834 | else | |
1835 | dev_info(dev, "ASIC Version: 0x%04x\n", val); | |
1836 | ||
96a9cc68 | 1837 | r = core->read(core, WL1273_FIRM_VER_GET, &val); |
87d1a50c MA |
1838 | if (r) |
1839 | dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__); | |
1840 | else | |
1841 | dev_info(dev, "FW version: %d(0x%04x)\n", val, val); | |
1842 | ||
96a9cc68 | 1843 | r = core->read(core, WL1273_BAND_SET, &val); |
87d1a50c MA |
1844 | if (r) |
1845 | dev_err(dev, "%s: Get BAND fails.\n", __func__); | |
1846 | else | |
1847 | dev_info(dev, "BAND: %d\n", val); | |
1848 | ||
1849 | if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 | 1850 | r = core->read(core, WL1273_PUPD_SET, &val); |
87d1a50c MA |
1851 | if (r) |
1852 | dev_err(dev, "%s: Get PUPD fails.\n", __func__); | |
1853 | else | |
1854 | dev_info(dev, "PUPD: 0x%04x\n", val); | |
1855 | ||
96a9cc68 | 1856 | r = core->read(core, WL1273_CHANL_SET, &val); |
87d1a50c MA |
1857 | if (r) |
1858 | dev_err(dev, "%s: Get CHANL fails.\n", __func__); | |
1859 | else | |
1860 | dev_info(dev, "Tx frequency: %dkHz\n", val*10); | |
1861 | } else if (core->mode == WL1273_MODE_RX) { | |
1862 | int bf = radio->rangelow; | |
1863 | ||
96a9cc68 | 1864 | r = core->read(core, WL1273_FREQ_SET, &val); |
87d1a50c MA |
1865 | if (r) |
1866 | dev_err(dev, "%s: Get FREQ fails.\n", __func__); | |
1867 | else | |
1868 | dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50); | |
1869 | ||
96a9cc68 | 1870 | r = core->read(core, WL1273_MOST_MODE_SET, &val); |
87d1a50c MA |
1871 | if (r) |
1872 | dev_err(dev, "%s: Get MOST_MODE fails.\n", | |
1873 | __func__); | |
1874 | else if (val == 0) | |
1875 | dev_info(dev, "MOST_MODE: Stereo according to blend\n"); | |
1876 | else if (val == 1) | |
1877 | dev_info(dev, "MOST_MODE: Force mono output\n"); | |
1878 | else | |
1879 | dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val); | |
1880 | ||
96a9cc68 | 1881 | r = core->read(core, WL1273_MOST_BLEND_SET, &val); |
87d1a50c MA |
1882 | if (r) |
1883 | dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__); | |
1884 | else if (val == 0) | |
1885 | dev_info(dev, | |
1886 | "MOST_BLEND: Switched blend & hysteresis.\n"); | |
1887 | else if (val == 1) | |
1888 | dev_info(dev, "MOST_BLEND: Soft blend.\n"); | |
1889 | else | |
1890 | dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val); | |
1891 | ||
96a9cc68 | 1892 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1893 | if (r) |
1894 | dev_err(dev, "%s: Get STEREO fails.\n", __func__); | |
1895 | else if (val == 0) | |
1896 | dev_info(dev, "STEREO: Not detected\n"); | |
1897 | else if (val == 1) | |
1898 | dev_info(dev, "STEREO: Detected\n"); | |
1899 | else | |
1900 | dev_info(dev, "STEREO: Unexpected value: %d\n", val); | |
1901 | ||
96a9cc68 | 1902 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1903 | if (r) |
1904 | dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__); | |
1905 | else | |
1906 | dev_info(dev, "RX signal strength: %d\n", (s16) val); | |
1907 | ||
96a9cc68 | 1908 | r = core->read(core, WL1273_POWER_SET, &val); |
87d1a50c MA |
1909 | if (r) |
1910 | dev_err(dev, "%s: Get POWER fails.\n", __func__); | |
1911 | else | |
1912 | dev_info(dev, "POWER: 0x%04x\n", val); | |
1913 | ||
96a9cc68 | 1914 | r = core->read(core, WL1273_INT_MASK_SET, &val); |
87d1a50c MA |
1915 | if (r) |
1916 | dev_err(dev, "%s: Get INT_MASK fails.\n", __func__); | |
1917 | else | |
1918 | dev_info(dev, "INT_MASK: 0x%04x\n", val); | |
1919 | ||
96a9cc68 | 1920 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1921 | if (r) |
1922 | dev_err(dev, "%s: Get RDS_SYNC fails.\n", | |
1923 | __func__); | |
1924 | else if (val == 0) | |
1925 | dev_info(dev, "RDS_SYNC: Not synchronized\n"); | |
1926 | ||
1927 | else if (val == 1) | |
1928 | dev_info(dev, "RDS_SYNC: Synchronized\n"); | |
1929 | else | |
1930 | dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val); | |
1931 | ||
96a9cc68 | 1932 | r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val); |
87d1a50c MA |
1933 | if (r) |
1934 | dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n", | |
1935 | __func__); | |
1936 | else | |
1937 | dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val); | |
1938 | ||
96a9cc68 | 1939 | r = core->read(core, WL1273_VOLUME_SET, &val); |
87d1a50c MA |
1940 | if (r) |
1941 | dev_err(dev, "%s: Get VOLUME fails.\n", __func__); | |
1942 | else | |
1943 | dev_info(dev, "VOLUME: 0x%04x\n", val); | |
1944 | } | |
1945 | ||
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | static void wl1273_vdev_release(struct video_device *dev) | |
1950 | { | |
1951 | } | |
1952 | ||
1953 | static const struct v4l2_ctrl_ops wl1273_ctrl_ops = { | |
1954 | .s_ctrl = wl1273_fm_vidioc_s_ctrl, | |
1955 | .g_volatile_ctrl = wl1273_fm_g_volatile_ctrl, | |
1956 | }; | |
1957 | ||
1958 | static const struct v4l2_ioctl_ops wl1273_ioctl_ops = { | |
1959 | .vidioc_querycap = wl1273_fm_vidioc_querycap, | |
1960 | .vidioc_g_input = wl1273_fm_vidioc_g_input, | |
1961 | .vidioc_s_input = wl1273_fm_vidioc_s_input, | |
1962 | .vidioc_g_audio = wl1273_fm_vidioc_g_audio, | |
1963 | .vidioc_s_audio = wl1273_fm_vidioc_s_audio, | |
1964 | .vidioc_g_tuner = wl1273_fm_vidioc_g_tuner, | |
1965 | .vidioc_s_tuner = wl1273_fm_vidioc_s_tuner, | |
1966 | .vidioc_g_frequency = wl1273_fm_vidioc_g_frequency, | |
1967 | .vidioc_s_frequency = wl1273_fm_vidioc_s_frequency, | |
1968 | .vidioc_s_hw_freq_seek = wl1273_fm_vidioc_s_hw_freq_seek, | |
1969 | .vidioc_g_modulator = wl1273_fm_vidioc_g_modulator, | |
1970 | .vidioc_s_modulator = wl1273_fm_vidioc_s_modulator, | |
1971 | .vidioc_log_status = wl1273_fm_vidioc_log_status, | |
1972 | }; | |
1973 | ||
1974 | static struct video_device wl1273_viddev_template = { | |
1975 | .fops = &wl1273_fops, | |
1976 | .ioctl_ops = &wl1273_ioctl_ops, | |
1977 | .name = WL1273_FM_DRIVER_NAME, | |
1978 | .release = wl1273_vdev_release, | |
ce4a3d52 | 1979 | .vfl_dir = VFL_DIR_TX, |
87d1a50c MA |
1980 | }; |
1981 | ||
1982 | static int wl1273_fm_radio_remove(struct platform_device *pdev) | |
1983 | { | |
1984 | struct wl1273_device *radio = platform_get_drvdata(pdev); | |
1985 | struct wl1273_core *core = radio->core; | |
1986 | ||
1987 | dev_info(&pdev->dev, "%s.\n", __func__); | |
1988 | ||
1989 | free_irq(core->client->irq, radio); | |
1990 | core->pdata->free_resources(); | |
1991 | ||
1992 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
1993 | video_unregister_device(&radio->videodev); | |
1994 | v4l2_device_unregister(&radio->v4l2dev); | |
87d1a50c MA |
1995 | |
1996 | return 0; | |
1997 | } | |
1998 | ||
4c62e976 | 1999 | static int wl1273_fm_radio_probe(struct platform_device *pdev) |
87d1a50c | 2000 | { |
9e554696 | 2001 | struct wl1273_core **core = pdev->dev.platform_data; |
87d1a50c MA |
2002 | struct wl1273_device *radio; |
2003 | struct v4l2_ctrl *ctrl; | |
2004 | int r = 0; | |
2005 | ||
2006 | pr_debug("%s\n", __func__); | |
2007 | ||
2008 | if (!core) { | |
2009 | dev_err(&pdev->dev, "No platform data.\n"); | |
2010 | r = -EINVAL; | |
2011 | goto pdata_err; | |
2012 | } | |
2013 | ||
d91e0139 | 2014 | radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL); |
87d1a50c MA |
2015 | if (!radio) { |
2016 | r = -ENOMEM; | |
2017 | goto pdata_err; | |
2018 | } | |
2019 | ||
2020 | /* RDS buffer allocation */ | |
2021 | radio->buf_size = rds_buf * RDS_BLOCK_SIZE; | |
d91e0139 | 2022 | radio->buffer = devm_kzalloc(&pdev->dev, radio->buf_size, GFP_KERNEL); |
87d1a50c MA |
2023 | if (!radio->buffer) { |
2024 | pr_err("Cannot allocate memory for RDS buffer.\n"); | |
2025 | r = -ENOMEM; | |
d91e0139 | 2026 | goto pdata_err; |
87d1a50c MA |
2027 | } |
2028 | ||
2029 | radio->core = *core; | |
2030 | radio->irq_flags = WL1273_IRQ_MASK; | |
2031 | radio->dev = &radio->core->client->dev; | |
2032 | radio->rds_on = false; | |
2033 | radio->core->mode = WL1273_MODE_OFF; | |
2034 | radio->tx_power = 118; | |
2035 | radio->core->audio_mode = WL1273_AUDIO_ANALOG; | |
2036 | radio->band = WL1273_BAND_OTHER; | |
2037 | radio->core->i2s_mode = WL1273_I2S_DEF_MODE; | |
2038 | radio->core->channel_number = 2; | |
2039 | radio->core->volume = WL1273_DEFAULT_VOLUME; | |
2040 | radio->rx_frequency = WL1273_BAND_OTHER_LOW; | |
2041 | radio->tx_frequency = WL1273_BAND_OTHER_HIGH; | |
2042 | radio->rangelow = WL1273_BAND_OTHER_LOW; | |
2043 | radio->rangehigh = WL1273_BAND_OTHER_HIGH; | |
2044 | radio->stereo = true; | |
2045 | radio->bus_type = "I2C"; | |
2046 | ||
87d1a50c MA |
2047 | if (radio->core->pdata->request_resources) { |
2048 | r = radio->core->pdata->request_resources(radio->core->client); | |
2049 | if (r) { | |
2050 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2051 | ": Cannot get platform data\n"); | |
d91e0139 | 2052 | goto pdata_err; |
87d1a50c MA |
2053 | } |
2054 | ||
2055 | dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq); | |
2056 | ||
2057 | r = request_threaded_irq(radio->core->client->irq, NULL, | |
2058 | wl1273_fm_irq_thread_handler, | |
2059 | IRQF_ONESHOT | IRQF_TRIGGER_FALLING, | |
2060 | "wl1273-fm", radio); | |
2061 | if (r < 0) { | |
2062 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2063 | ": Unable to register IRQ handler: %d\n", r); | |
2064 | goto err_request_irq; | |
2065 | } | |
2066 | } else { | |
547633de | 2067 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ not configured"); |
87d1a50c | 2068 | r = -EINVAL; |
d91e0139 | 2069 | goto pdata_err; |
87d1a50c MA |
2070 | } |
2071 | ||
2072 | init_completion(&radio->busy); | |
2073 | init_waitqueue_head(&radio->read_queue); | |
2074 | ||
d91e0139 | 2075 | radio->write_buf = devm_kzalloc(&pdev->dev, 256, GFP_KERNEL); |
87d1a50c MA |
2076 | if (!radio->write_buf) { |
2077 | r = -ENOMEM; | |
2078 | goto write_buf_err; | |
2079 | } | |
2080 | ||
2081 | radio->dev = &pdev->dev; | |
2082 | radio->v4l2dev.ctrl_handler = &radio->ctrl_handler; | |
2083 | radio->rds_users = 0; | |
2084 | ||
2085 | r = v4l2_device_register(&pdev->dev, &radio->v4l2dev); | |
2086 | if (r) { | |
2087 | dev_err(&pdev->dev, "Cannot register v4l2_device.\n"); | |
d91e0139 | 2088 | goto write_buf_err; |
87d1a50c MA |
2089 | } |
2090 | ||
2091 | /* V4L2 configuration */ | |
2b9b325d | 2092 | radio->videodev = wl1273_viddev_template; |
87d1a50c MA |
2093 | |
2094 | radio->videodev.v4l2_dev = &radio->v4l2dev; | |
2095 | ||
2096 | v4l2_ctrl_handler_init(&radio->ctrl_handler, 6); | |
2097 | ||
2098 | /* add in ascending ID order */ | |
2099 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2100 | V4L2_CID_AUDIO_VOLUME, 0, WL1273_MAX_VOLUME, 1, | |
2101 | WL1273_DEFAULT_VOLUME); | |
2102 | ||
2103 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2104 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); | |
2105 | ||
2106 | v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2107 | V4L2_CID_TUNE_PREEMPHASIS, | |
2108 | V4L2_PREEMPHASIS_75_uS, 0x03, | |
2109 | V4L2_PREEMPHASIS_50_uS); | |
2110 | ||
2111 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2112 | V4L2_CID_TUNE_POWER_LEVEL, 91, 122, 1, 118); | |
2113 | ||
2114 | ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2115 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, | |
2116 | 0, 255, 1, 255); | |
2117 | if (ctrl) | |
88365105 | 2118 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; |
87d1a50c MA |
2119 | |
2120 | if (radio->ctrl_handler.error) { | |
2121 | r = radio->ctrl_handler.error; | |
2122 | dev_err(&pdev->dev, "Ctrl handler error: %d\n", r); | |
2123 | goto handler_init_err; | |
2124 | } | |
2125 | ||
2126 | video_set_drvdata(&radio->videodev, radio); | |
2127 | platform_set_drvdata(pdev, radio); | |
2128 | ||
2129 | /* register video device */ | |
2130 | r = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr); | |
2131 | if (r) { | |
2132 | dev_err(&pdev->dev, WL1273_FM_DRIVER_NAME | |
2133 | ": Could not register video device\n"); | |
2134 | goto handler_init_err; | |
2135 | } | |
2136 | ||
2137 | return 0; | |
2138 | ||
2139 | handler_init_err: | |
2140 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
2141 | v4l2_device_unregister(&radio->v4l2dev); | |
87d1a50c MA |
2142 | write_buf_err: |
2143 | free_irq(radio->core->client->irq, radio); | |
2144 | err_request_irq: | |
2145 | radio->core->pdata->free_resources(); | |
87d1a50c MA |
2146 | pdata_err: |
2147 | return r; | |
2148 | } | |
2149 | ||
87d1a50c MA |
2150 | static struct platform_driver wl1273_fm_radio_driver = { |
2151 | .probe = wl1273_fm_radio_probe, | |
4c62e976 | 2152 | .remove = wl1273_fm_radio_remove, |
87d1a50c MA |
2153 | .driver = { |
2154 | .name = "wl1273_fm_radio", | |
87d1a50c MA |
2155 | }, |
2156 | }; | |
2157 | ||
1d6629b1 | 2158 | module_platform_driver(wl1273_fm_radio_driver); |
87d1a50c MA |
2159 | |
2160 | MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>"); | |
2161 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2162 | MODULE_LICENSE("GPL"); | |
1d6629b1 | 2163 | MODULE_ALIAS("platform:wl1273_fm_radio"); |