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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. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | #include <linux/delay.h> | |
22 | #include <linux/firmware.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/mfd/wl1273-core.h> | |
25 | #include <linux/slab.h> | |
7a707b89 | 26 | #include <linux/module.h> |
87d1a50c MA |
27 | #include <media/v4l2-common.h> |
28 | #include <media/v4l2-ctrls.h> | |
29 | #include <media/v4l2-device.h> | |
30 | #include <media/v4l2-ioctl.h> | |
31 | ||
32 | #define DRIVER_DESC "Wl1273 FM Radio" | |
33 | ||
34 | #define WL1273_POWER_SET_OFF 0 | |
35 | #define WL1273_POWER_SET_FM BIT(0) | |
36 | #define WL1273_POWER_SET_RDS BIT(1) | |
37 | #define WL1273_POWER_SET_RETENTION BIT(4) | |
38 | ||
39 | #define WL1273_PUPD_SET_OFF 0x00 | |
40 | #define WL1273_PUPD_SET_ON 0x01 | |
41 | #define WL1273_PUPD_SET_RETENTION 0x10 | |
42 | ||
43 | #define WL1273_FREQ(x) (x * 10000 / 625) | |
44 | #define WL1273_INV_FREQ(x) (x * 625 / 10000) | |
45 | ||
46 | /* | |
47 | * static int radio_nr - The number of the radio device | |
48 | * | |
49 | * The default is 0. | |
50 | */ | |
51 | static int radio_nr; | |
52 | module_param(radio_nr, int, 0); | |
53 | MODULE_PARM_DESC(radio_nr, "The number of the radio device. Default = 0"); | |
54 | ||
55 | struct wl1273_device { | |
56 | char *bus_type; | |
57 | ||
58 | u8 forbidden; | |
59 | unsigned int preemphasis; | |
60 | unsigned int spacing; | |
61 | unsigned int tx_power; | |
62 | unsigned int rx_frequency; | |
63 | unsigned int tx_frequency; | |
64 | unsigned int rangelow; | |
65 | unsigned int rangehigh; | |
66 | unsigned int band; | |
67 | bool stereo; | |
68 | ||
69 | /* RDS */ | |
70 | unsigned int rds_on; | |
87d1a50c MA |
71 | |
72 | wait_queue_head_t read_queue; | |
73 | struct mutex lock; /* for serializing fm radio operations */ | |
74 | struct completion busy; | |
75 | ||
76 | unsigned char *buffer; | |
77 | unsigned int buf_size; | |
78 | unsigned int rd_index; | |
79 | unsigned int wr_index; | |
80 | ||
81 | /* Selected interrupts */ | |
82 | u16 irq_flags; | |
83 | u16 irq_received; | |
84 | ||
85 | struct v4l2_ctrl_handler ctrl_handler; | |
86 | struct v4l2_device v4l2dev; | |
87 | struct video_device videodev; | |
88 | struct device *dev; | |
89 | struct wl1273_core *core; | |
90 | struct file *owner; | |
91 | char *write_buf; | |
92 | unsigned int rds_users; | |
93 | }; | |
94 | ||
95 | #define WL1273_IRQ_MASK (WL1273_FR_EVENT | \ | |
96 | WL1273_POW_ENB_EVENT) | |
97 | ||
98 | /* | |
99 | * static unsigned int rds_buf - the number of RDS buffer blocks used. | |
100 | * | |
101 | * The default number is 100. | |
102 | */ | |
103 | static unsigned int rds_buf = 100; | |
104 | module_param(rds_buf, uint, 0); | |
105 | MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 100"); | |
106 | ||
87d1a50c MA |
107 | static int wl1273_fm_write_fw(struct wl1273_core *core, |
108 | __u8 *fw, int len) | |
109 | { | |
110 | struct i2c_client *client = core->client; | |
111 | struct i2c_msg msg; | |
112 | int i, r = 0; | |
113 | ||
114 | msg.addr = client->addr; | |
115 | msg.flags = 0; | |
116 | ||
117 | for (i = 0; i <= len; i++) { | |
118 | msg.len = fw[0]; | |
119 | msg.buf = fw + 1; | |
120 | ||
121 | fw += msg.len + 1; | |
122 | dev_dbg(&client->dev, "%s:len[%d]: %d\n", __func__, i, msg.len); | |
123 | ||
124 | r = i2c_transfer(client->adapter, &msg, 1); | |
125 | if (r < 0 && i < len + 1) | |
126 | break; | |
127 | } | |
128 | ||
129 | dev_dbg(&client->dev, "%s: i: %d\n", __func__, i); | |
130 | dev_dbg(&client->dev, "%s: len + 1: %d\n", __func__, len + 1); | |
131 | ||
132 | /* Last transfer always fails. */ | |
133 | if (i == len || r == 1) | |
134 | r = 0; | |
135 | ||
136 | return r; | |
137 | } | |
138 | ||
87d1a50c MA |
139 | #define WL1273_FIFO_HAS_DATA(status) (1 << 5 & status) |
140 | #define WL1273_RDS_CORRECTABLE_ERROR (1 << 3) | |
141 | #define WL1273_RDS_UNCORRECTABLE_ERROR (1 << 4) | |
142 | ||
143 | static int wl1273_fm_rds(struct wl1273_device *radio) | |
144 | { | |
145 | struct wl1273_core *core = radio->core; | |
146 | struct i2c_client *client = core->client; | |
147 | u16 val; | |
148 | u8 b0 = WL1273_RDS_DATA_GET, status; | |
149 | struct v4l2_rds_data rds = { 0, 0, 0 }; | |
150 | struct i2c_msg msg[] = { | |
151 | { | |
152 | .addr = client->addr, | |
153 | .flags = 0, | |
154 | .buf = &b0, | |
155 | .len = 1, | |
156 | }, | |
157 | { | |
158 | .addr = client->addr, | |
159 | .flags = I2C_M_RD, | |
160 | .buf = (u8 *) &rds, | |
161 | .len = sizeof(rds), | |
162 | } | |
163 | }; | |
164 | int r; | |
165 | ||
166 | if (core->mode != WL1273_MODE_RX) | |
167 | return 0; | |
168 | ||
96a9cc68 | 169 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
170 | if (r) |
171 | return r; | |
172 | ||
173 | if ((val & 0x01) == 0) { | |
174 | /* RDS decoder not synchronized */ | |
175 | return -EAGAIN; | |
176 | } | |
177 | ||
178 | /* copy all four RDS blocks to internal buffer */ | |
179 | do { | |
180 | r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); | |
181 | if (r != ARRAY_SIZE(msg)) { | |
182 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
183 | ": %s: read_rds error r == %i)\n", | |
184 | __func__, r); | |
185 | } | |
186 | ||
187 | status = rds.block; | |
188 | ||
189 | if (!WL1273_FIFO_HAS_DATA(status)) | |
190 | break; | |
191 | ||
192 | /* copy bits 0-2 (the block ID) to bits 3-5 */ | |
193 | rds.block = V4L2_RDS_BLOCK_MSK & status; | |
194 | rds.block |= rds.block << 3; | |
195 | ||
196 | /* copy the error bits to standard positions */ | |
197 | if (WL1273_RDS_UNCORRECTABLE_ERROR & status) { | |
198 | rds.block |= V4L2_RDS_BLOCK_ERROR; | |
199 | rds.block &= ~V4L2_RDS_BLOCK_CORRECTED; | |
200 | } else if (WL1273_RDS_CORRECTABLE_ERROR & status) { | |
201 | rds.block &= ~V4L2_RDS_BLOCK_ERROR; | |
202 | rds.block |= V4L2_RDS_BLOCK_CORRECTED; | |
203 | } | |
204 | ||
205 | /* copy RDS block to internal buffer */ | |
206 | memcpy(&radio->buffer[radio->wr_index], &rds, RDS_BLOCK_SIZE); | |
207 | radio->wr_index += 3; | |
208 | ||
209 | /* wrap write pointer */ | |
210 | if (radio->wr_index >= radio->buf_size) | |
211 | radio->wr_index = 0; | |
212 | ||
213 | /* check for overflow & start over */ | |
214 | if (radio->wr_index == radio->rd_index) { | |
215 | dev_dbg(radio->dev, "RDS OVERFLOW"); | |
216 | ||
217 | radio->rd_index = 0; | |
218 | radio->wr_index = 0; | |
219 | break; | |
220 | } | |
221 | } while (WL1273_FIFO_HAS_DATA(status)); | |
222 | ||
223 | /* wake up read queue */ | |
224 | if (radio->wr_index != radio->rd_index) | |
225 | wake_up_interruptible(&radio->read_queue); | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id) | |
231 | { | |
232 | struct wl1273_device *radio = dev_id; | |
233 | struct wl1273_core *core = radio->core; | |
234 | u16 flags; | |
235 | int r; | |
236 | ||
96a9cc68 | 237 | r = core->read(core, WL1273_FLAG_GET, &flags); |
87d1a50c MA |
238 | if (r) |
239 | goto out; | |
240 | ||
241 | if (flags & WL1273_BL_EVENT) { | |
242 | radio->irq_received = flags; | |
243 | dev_dbg(radio->dev, "IRQ: BL\n"); | |
244 | } | |
245 | ||
246 | if (flags & WL1273_RDS_EVENT) { | |
247 | msleep(200); | |
248 | ||
249 | wl1273_fm_rds(radio); | |
250 | } | |
251 | ||
252 | if (flags & WL1273_BBLK_EVENT) | |
253 | dev_dbg(radio->dev, "IRQ: BBLK\n"); | |
254 | ||
255 | if (flags & WL1273_LSYNC_EVENT) | |
256 | dev_dbg(radio->dev, "IRQ: LSYNC\n"); | |
257 | ||
258 | if (flags & WL1273_LEV_EVENT) { | |
259 | u16 level; | |
260 | ||
96a9cc68 | 261 | r = core->read(core, WL1273_RSSI_LVL_GET, &level); |
87d1a50c MA |
262 | if (r) |
263 | goto out; | |
264 | ||
265 | if (level > 14) | |
266 | dev_dbg(radio->dev, "IRQ: LEV: 0x%x04\n", level); | |
267 | } | |
268 | ||
269 | if (flags & WL1273_IFFR_EVENT) | |
270 | dev_dbg(radio->dev, "IRQ: IFFR\n"); | |
271 | ||
272 | if (flags & WL1273_PI_EVENT) | |
273 | dev_dbg(radio->dev, "IRQ: PI\n"); | |
274 | ||
275 | if (flags & WL1273_PD_EVENT) | |
276 | dev_dbg(radio->dev, "IRQ: PD\n"); | |
277 | ||
278 | if (flags & WL1273_STIC_EVENT) | |
279 | dev_dbg(radio->dev, "IRQ: STIC\n"); | |
280 | ||
281 | if (flags & WL1273_MAL_EVENT) | |
282 | dev_dbg(radio->dev, "IRQ: MAL\n"); | |
283 | ||
284 | if (flags & WL1273_POW_ENB_EVENT) { | |
285 | complete(&radio->busy); | |
286 | dev_dbg(radio->dev, "NOT BUSY\n"); | |
287 | dev_dbg(radio->dev, "IRQ: POW_ENB\n"); | |
288 | } | |
289 | ||
290 | if (flags & WL1273_SCAN_OVER_EVENT) | |
291 | dev_dbg(radio->dev, "IRQ: SCAN_OVER\n"); | |
292 | ||
293 | if (flags & WL1273_ERROR_EVENT) | |
294 | dev_dbg(radio->dev, "IRQ: ERROR\n"); | |
295 | ||
296 | if (flags & WL1273_FR_EVENT) { | |
297 | u16 freq; | |
298 | ||
299 | dev_dbg(radio->dev, "IRQ: FR:\n"); | |
300 | ||
301 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
302 | r = core->write(core, WL1273_TUNER_MODE_SET, |
303 | TUNER_MODE_STOP_SEARCH); | |
87d1a50c MA |
304 | if (r) { |
305 | dev_err(radio->dev, | |
306 | "%s: TUNER_MODE_SET fails: %d\n", | |
307 | __func__, r); | |
308 | goto out; | |
309 | } | |
310 | ||
96a9cc68 | 311 | r = core->read(core, WL1273_FREQ_SET, &freq); |
87d1a50c MA |
312 | if (r) |
313 | goto out; | |
314 | ||
315 | if (radio->band == WL1273_BAND_JAPAN) | |
316 | radio->rx_frequency = WL1273_BAND_JAPAN_LOW + | |
317 | freq * 50; | |
318 | else | |
319 | radio->rx_frequency = WL1273_BAND_OTHER_LOW + | |
320 | freq * 50; | |
321 | /* | |
322 | * The driver works better with this msleep, | |
323 | * the documentation doesn't mention it. | |
324 | */ | |
325 | usleep_range(10000, 15000); | |
326 | ||
327 | dev_dbg(radio->dev, "%dkHz\n", radio->rx_frequency); | |
328 | ||
329 | } else { | |
96a9cc68 | 330 | r = core->read(core, WL1273_CHANL_SET, &freq); |
87d1a50c MA |
331 | if (r) |
332 | goto out; | |
333 | ||
334 | dev_dbg(radio->dev, "%dkHz\n", freq); | |
335 | } | |
336 | dev_dbg(radio->dev, "%s: NOT BUSY\n", __func__); | |
337 | } | |
338 | ||
339 | out: | |
96a9cc68 | 340 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
341 | complete(&radio->busy); |
342 | ||
343 | return IRQ_HANDLED; | |
344 | } | |
345 | ||
346 | static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq) | |
347 | { | |
348 | struct wl1273_core *core = radio->core; | |
349 | int r = 0; | |
350 | ||
351 | if (freq < WL1273_BAND_TX_LOW) { | |
352 | dev_err(radio->dev, | |
353 | "Frequency out of range: %d < %d\n", freq, | |
354 | WL1273_BAND_TX_LOW); | |
355 | return -ERANGE; | |
356 | } | |
357 | ||
358 | if (freq > WL1273_BAND_TX_HIGH) { | |
359 | dev_err(radio->dev, | |
360 | "Frequency out of range: %d > %d\n", freq, | |
361 | WL1273_BAND_TX_HIGH); | |
362 | return -ERANGE; | |
363 | } | |
364 | ||
365 | /* | |
366 | * The driver works better with this sleep, | |
367 | * the documentation doesn't mention it. | |
368 | */ | |
369 | usleep_range(5000, 10000); | |
370 | ||
371 | dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq); | |
372 | ||
373 | /* Set the current tx channel */ | |
96a9cc68 | 374 | r = core->write(core, WL1273_CHANL_SET, freq / 10); |
87d1a50c MA |
375 | if (r) |
376 | return r; | |
377 | ||
378 | INIT_COMPLETION(radio->busy); | |
379 | ||
380 | /* wait for the FR IRQ */ | |
381 | r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); | |
382 | if (!r) | |
383 | return -ETIMEDOUT; | |
384 | ||
385 | dev_dbg(radio->dev, "WL1273_CHANL_SET: %d\n", r); | |
386 | ||
387 | /* Enable the output power */ | |
96a9cc68 | 388 | r = core->write(core, WL1273_POWER_ENB_SET, 1); |
87d1a50c MA |
389 | if (r) |
390 | return r; | |
391 | ||
392 | INIT_COMPLETION(radio->busy); | |
393 | ||
394 | /* wait for the POWER_ENB IRQ */ | |
395 | r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); | |
396 | if (!r) | |
397 | return -ETIMEDOUT; | |
398 | ||
399 | radio->tx_frequency = freq; | |
400 | dev_dbg(radio->dev, "WL1273_POWER_ENB_SET: %d\n", r); | |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq) | |
406 | { | |
407 | struct wl1273_core *core = radio->core; | |
408 | int r, f; | |
409 | ||
410 | if (freq < radio->rangelow) { | |
411 | dev_err(radio->dev, | |
412 | "Frequency out of range: %d < %d\n", freq, | |
413 | radio->rangelow); | |
414 | r = -ERANGE; | |
415 | goto err; | |
416 | } | |
417 | ||
418 | if (freq > radio->rangehigh) { | |
419 | dev_err(radio->dev, | |
420 | "Frequency out of range: %d > %d\n", freq, | |
421 | radio->rangehigh); | |
422 | r = -ERANGE; | |
423 | goto err; | |
424 | } | |
425 | ||
426 | dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq); | |
427 | ||
96a9cc68 | 428 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
429 | |
430 | if (radio->band == WL1273_BAND_JAPAN) | |
431 | f = (freq - WL1273_BAND_JAPAN_LOW) / 50; | |
432 | else | |
433 | f = (freq - WL1273_BAND_OTHER_LOW) / 50; | |
434 | ||
96a9cc68 | 435 | r = core->write(core, WL1273_FREQ_SET, f); |
87d1a50c MA |
436 | if (r) { |
437 | dev_err(radio->dev, "FREQ_SET fails\n"); | |
438 | goto err; | |
439 | } | |
440 | ||
96a9cc68 | 441 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET); |
87d1a50c MA |
442 | if (r) { |
443 | dev_err(radio->dev, "TUNER_MODE_SET fails\n"); | |
444 | goto err; | |
445 | } | |
446 | ||
447 | INIT_COMPLETION(radio->busy); | |
448 | ||
449 | r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); | |
450 | if (!r) { | |
451 | dev_err(radio->dev, "%s: TIMEOUT\n", __func__); | |
452 | return -ETIMEDOUT; | |
453 | } | |
454 | ||
455 | radio->rd_index = 0; | |
456 | radio->wr_index = 0; | |
457 | radio->rx_frequency = freq; | |
458 | return 0; | |
459 | err: | |
460 | return r; | |
461 | } | |
462 | ||
463 | static int wl1273_fm_get_freq(struct wl1273_device *radio) | |
464 | { | |
465 | struct wl1273_core *core = radio->core; | |
466 | unsigned int freq; | |
467 | u16 f; | |
468 | int r; | |
469 | ||
470 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 471 | r = core->read(core, WL1273_FREQ_SET, &f); |
87d1a50c MA |
472 | if (r) |
473 | return r; | |
474 | ||
475 | dev_dbg(radio->dev, "Freq get: 0x%04x\n", f); | |
476 | if (radio->band == WL1273_BAND_JAPAN) | |
477 | freq = WL1273_BAND_JAPAN_LOW + 50 * f; | |
478 | else | |
479 | freq = WL1273_BAND_OTHER_LOW + 50 * f; | |
480 | } else { | |
96a9cc68 | 481 | r = core->read(core, WL1273_CHANL_SET, &f); |
87d1a50c MA |
482 | if (r) |
483 | return r; | |
484 | ||
485 | freq = f * 10; | |
486 | } | |
487 | ||
488 | return freq; | |
489 | } | |
490 | ||
491 | /** | |
492 | * wl1273_fm_upload_firmware_patch() - Upload the firmware. | |
493 | * @radio: A pointer to the device struct. | |
494 | * | |
495 | * The firmware file consists of arrays of bytes where the first byte | |
496 | * gives the array length. The first byte in the file gives the | |
497 | * number of these arrays. | |
498 | */ | |
499 | static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio) | |
500 | { | |
501 | struct wl1273_core *core = radio->core; | |
502 | unsigned int packet_num; | |
503 | const struct firmware *fw_p; | |
504 | const char *fw_name = "radio-wl1273-fw.bin"; | |
505 | struct device *dev = radio->dev; | |
506 | __u8 *ptr; | |
fce50ac8 | 507 | int r; |
87d1a50c MA |
508 | |
509 | dev_dbg(dev, "%s:\n", __func__); | |
510 | ||
511 | /* | |
512 | * Uploading the firmware patch is not always necessary, | |
513 | * so we only print an info message. | |
514 | */ | |
515 | if (request_firmware(&fw_p, fw_name, dev)) { | |
516 | dev_info(dev, "%s - %s not found\n", __func__, fw_name); | |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | ptr = (__u8 *) fw_p->data; | |
522 | packet_num = ptr[0]; | |
523 | dev_dbg(dev, "%s: packets: %d\n", __func__, packet_num); | |
524 | ||
525 | r = wl1273_fm_write_fw(core, ptr + 1, packet_num); | |
526 | if (r) { | |
527 | dev_err(dev, "FW upload error: %d\n", r); | |
528 | goto out; | |
529 | } | |
530 | ||
531 | /* ignore possible error here */ | |
96a9cc68 | 532 | core->write(core, WL1273_RESET, 0); |
87d1a50c | 533 | |
87d1a50c MA |
534 | dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r); |
535 | out: | |
536 | release_firmware(fw_p); | |
537 | return r; | |
538 | } | |
539 | ||
540 | static int wl1273_fm_stop(struct wl1273_device *radio) | |
541 | { | |
542 | struct wl1273_core *core = radio->core; | |
543 | ||
544 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 545 | int r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
546 | WL1273_POWER_SET_OFF); |
547 | if (r) | |
548 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", | |
549 | __func__, r); | |
550 | } else if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
551 | int r = core->write(core, WL1273_PUPD_SET, |
552 | WL1273_PUPD_SET_OFF); | |
87d1a50c MA |
553 | if (r) |
554 | dev_err(radio->dev, | |
555 | "%s: PUPD_SET fails: %d\n", __func__, r); | |
556 | } | |
557 | ||
558 | if (core->pdata->disable) { | |
559 | core->pdata->disable(); | |
560 | dev_dbg(radio->dev, "Back to reset\n"); | |
561 | } | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
566 | static int wl1273_fm_start(struct wl1273_device *radio, int new_mode) | |
567 | { | |
568 | struct wl1273_core *core = radio->core; | |
569 | struct wl1273_fm_platform_data *pdata = core->pdata; | |
570 | struct device *dev = radio->dev; | |
571 | int r = -EINVAL; | |
572 | ||
573 | if (pdata->enable && core->mode == WL1273_MODE_OFF) { | |
574 | dev_dbg(radio->dev, "Out of reset\n"); | |
575 | ||
576 | pdata->enable(); | |
577 | msleep(250); | |
578 | } | |
579 | ||
580 | if (new_mode == WL1273_MODE_RX) { | |
581 | u16 val = WL1273_POWER_SET_FM; | |
582 | ||
583 | if (radio->rds_on) | |
584 | val |= WL1273_POWER_SET_RDS; | |
585 | ||
586 | /* If this fails try again */ | |
96a9cc68 | 587 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
588 | if (r) { |
589 | msleep(100); | |
590 | ||
96a9cc68 | 591 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
592 | if (r) { |
593 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
594 | goto fail; | |
595 | } | |
596 | } | |
597 | ||
598 | /* rds buffer configuration */ | |
599 | radio->wr_index = 0; | |
600 | radio->rd_index = 0; | |
601 | ||
602 | } else if (new_mode == WL1273_MODE_TX) { | |
603 | /* If this fails try again once */ | |
96a9cc68 | 604 | r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON); |
87d1a50c MA |
605 | if (r) { |
606 | msleep(100); | |
96a9cc68 | 607 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
608 | WL1273_PUPD_SET_ON); |
609 | if (r) { | |
610 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
611 | goto fail; | |
612 | } | |
613 | } | |
614 | ||
615 | if (radio->rds_on) | |
96a9cc68 | 616 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c | 617 | else |
96a9cc68 | 618 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c MA |
619 | } else { |
620 | dev_warn(dev, "%s: Illegal mode.\n", __func__); | |
621 | } | |
622 | ||
623 | if (core->mode == WL1273_MODE_OFF) { | |
624 | r = wl1273_fm_upload_firmware_patch(radio); | |
625 | if (r) | |
626 | dev_warn(dev, "Firmware upload failed.\n"); | |
627 | ||
628 | /* | |
629 | * Sometimes the chip is in a wrong power state at this point. | |
630 | * So we set the power once again. | |
631 | */ | |
632 | if (new_mode == WL1273_MODE_RX) { | |
633 | u16 val = WL1273_POWER_SET_FM; | |
634 | ||
635 | if (radio->rds_on) | |
636 | val |= WL1273_POWER_SET_RDS; | |
637 | ||
96a9cc68 | 638 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
639 | if (r) { |
640 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
641 | goto fail; | |
642 | } | |
643 | } else if (new_mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
644 | r = core->write(core, WL1273_PUPD_SET, |
645 | WL1273_PUPD_SET_ON); | |
87d1a50c MA |
646 | if (r) { |
647 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
648 | goto fail; | |
649 | } | |
650 | } | |
651 | } | |
652 | ||
653 | return 0; | |
654 | fail: | |
655 | if (pdata->disable) | |
656 | pdata->disable(); | |
657 | ||
658 | dev_dbg(dev, "%s: return: %d\n", __func__, r); | |
659 | return r; | |
660 | } | |
661 | ||
662 | static int wl1273_fm_suspend(struct wl1273_device *radio) | |
663 | { | |
664 | struct wl1273_core *core = radio->core; | |
665 | int r = 0; | |
666 | ||
667 | /* Cannot go from OFF to SUSPENDED */ | |
668 | if (core->mode == WL1273_MODE_RX) | |
96a9cc68 | 669 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
670 | WL1273_POWER_SET_RETENTION); |
671 | else if (core->mode == WL1273_MODE_TX) | |
96a9cc68 | 672 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
673 | WL1273_PUPD_SET_RETENTION); |
674 | else | |
675 | r = -EINVAL; | |
676 | ||
677 | if (r) { | |
678 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", __func__, r); | |
679 | goto out; | |
680 | } | |
681 | ||
682 | out: | |
683 | return r; | |
684 | } | |
685 | ||
686 | static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode) | |
687 | { | |
688 | struct wl1273_core *core = radio->core; | |
689 | struct device *dev = radio->dev; | |
690 | int old_mode; | |
691 | int r; | |
692 | ||
693 | dev_dbg(dev, "%s\n", __func__); | |
694 | dev_dbg(dev, "Forbidden modes: 0x%02x\n", radio->forbidden); | |
695 | ||
696 | old_mode = core->mode; | |
697 | if (mode & radio->forbidden) { | |
698 | r = -EPERM; | |
699 | goto out; | |
700 | } | |
701 | ||
702 | switch (mode) { | |
703 | case WL1273_MODE_RX: | |
704 | case WL1273_MODE_TX: | |
705 | r = wl1273_fm_start(radio, mode); | |
706 | if (r) { | |
707 | dev_err(dev, "%s: Cannot start.\n", __func__); | |
708 | wl1273_fm_stop(radio); | |
709 | goto out; | |
710 | } | |
711 | ||
712 | core->mode = mode; | |
96a9cc68 | 713 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
714 | if (r) { |
715 | dev_err(dev, "INT_MASK_SET fails.\n"); | |
716 | goto out; | |
717 | } | |
718 | ||
719 | /* remember previous settings */ | |
720 | if (mode == WL1273_MODE_RX) { | |
721 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
722 | if (r) { | |
723 | dev_err(dev, "set freq fails: %d.\n", r); | |
724 | goto out; | |
725 | } | |
726 | ||
727 | r = core->set_volume(core, core->volume); | |
728 | if (r) { | |
729 | dev_err(dev, "set volume fails: %d.\n", r); | |
730 | goto out; | |
731 | } | |
732 | ||
733 | dev_dbg(dev, "%s: Set vol: %d.\n", __func__, | |
734 | core->volume); | |
735 | } else { | |
736 | r = wl1273_fm_set_tx_freq(radio, radio->tx_frequency); | |
737 | if (r) { | |
738 | dev_err(dev, "set freq fails: %d.\n", r); | |
739 | goto out; | |
740 | } | |
741 | } | |
742 | ||
743 | dev_dbg(radio->dev, "%s: Set audio mode.\n", __func__); | |
744 | ||
745 | r = core->set_audio(core, core->audio_mode); | |
746 | if (r) | |
747 | dev_err(dev, "Cannot set audio mode.\n"); | |
748 | break; | |
749 | ||
750 | case WL1273_MODE_OFF: | |
751 | r = wl1273_fm_stop(radio); | |
752 | if (r) | |
753 | dev_err(dev, "%s: Off fails: %d\n", __func__, r); | |
754 | else | |
755 | core->mode = WL1273_MODE_OFF; | |
756 | ||
757 | break; | |
758 | ||
759 | case WL1273_MODE_SUSPENDED: | |
760 | r = wl1273_fm_suspend(radio); | |
761 | if (r) | |
762 | dev_err(dev, "%s: Suspend fails: %d\n", __func__, r); | |
763 | else | |
764 | core->mode = WL1273_MODE_SUSPENDED; | |
765 | ||
766 | break; | |
767 | ||
768 | default: | |
769 | dev_err(dev, "%s: Unknown mode: %d\n", __func__, mode); | |
770 | r = -EINVAL; | |
771 | break; | |
772 | } | |
773 | out: | |
774 | if (r) | |
775 | core->mode = old_mode; | |
776 | ||
777 | return r; | |
778 | } | |
779 | ||
780 | static int wl1273_fm_set_seek(struct wl1273_device *radio, | |
781 | unsigned int wrap_around, | |
782 | unsigned int seek_upward, | |
783 | int level) | |
784 | { | |
785 | struct wl1273_core *core = radio->core; | |
786 | int r = 0; | |
787 | unsigned int dir = (seek_upward == 0) ? 0 : 1; | |
788 | unsigned int f; | |
789 | ||
790 | f = radio->rx_frequency; | |
791 | dev_dbg(radio->dev, "rx_frequency: %d\n", f); | |
792 | ||
793 | if (dir && f + radio->spacing <= radio->rangehigh) | |
794 | r = wl1273_fm_set_rx_freq(radio, f + radio->spacing); | |
795 | else if (dir && wrap_around) | |
796 | r = wl1273_fm_set_rx_freq(radio, radio->rangelow); | |
797 | else if (f - radio->spacing >= radio->rangelow) | |
798 | r = wl1273_fm_set_rx_freq(radio, f - radio->spacing); | |
799 | else if (wrap_around) | |
800 | r = wl1273_fm_set_rx_freq(radio, radio->rangehigh); | |
801 | ||
802 | if (r) | |
803 | goto out; | |
804 | ||
805 | if (level < SCHAR_MIN || level > SCHAR_MAX) | |
806 | return -EINVAL; | |
807 | ||
808 | INIT_COMPLETION(radio->busy); | |
809 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); | |
810 | ||
96a9cc68 | 811 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
812 | if (r) |
813 | goto out; | |
814 | ||
815 | dev_dbg(radio->dev, "%s\n", __func__); | |
816 | ||
96a9cc68 | 817 | r = core->write(core, WL1273_SEARCH_LVL_SET, level); |
87d1a50c MA |
818 | if (r) |
819 | goto out; | |
820 | ||
96a9cc68 | 821 | r = core->write(core, WL1273_SEARCH_DIR_SET, dir); |
87d1a50c MA |
822 | if (r) |
823 | goto out; | |
824 | ||
96a9cc68 | 825 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
826 | if (r) |
827 | goto out; | |
828 | ||
829 | wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); | |
830 | if (!(radio->irq_received & WL1273_BL_EVENT)) | |
831 | goto out; | |
832 | ||
833 | radio->irq_received &= ~WL1273_BL_EVENT; | |
834 | ||
835 | if (!wrap_around) | |
836 | goto out; | |
837 | ||
838 | /* Wrap around */ | |
839 | dev_dbg(radio->dev, "Wrap around in HW seek.\n"); | |
840 | ||
841 | if (seek_upward) | |
842 | f = radio->rangelow; | |
843 | else | |
844 | f = radio->rangehigh; | |
845 | ||
846 | r = wl1273_fm_set_rx_freq(radio, f); | |
847 | if (r) | |
848 | goto out; | |
849 | ||
850 | INIT_COMPLETION(radio->busy); | |
851 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); | |
852 | ||
96a9cc68 | 853 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
854 | if (r) |
855 | goto out; | |
856 | ||
857 | wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); | |
858 | out: | |
859 | dev_dbg(radio->dev, "%s: Err: %d\n", __func__, r); | |
860 | return r; | |
861 | } | |
862 | ||
863 | /** | |
864 | * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value. | |
865 | * @radio: A pointer to the device struct. | |
866 | */ | |
867 | static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio) | |
868 | { | |
869 | struct wl1273_core *core = radio->core; | |
870 | struct device *dev = radio->dev; | |
871 | u16 val; | |
872 | int r; | |
873 | ||
874 | if (core->mode == WL1273_MODE_OFF || | |
875 | core->mode == WL1273_MODE_SUSPENDED) | |
876 | return -EPERM; | |
877 | ||
96a9cc68 | 878 | r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val); |
87d1a50c MA |
879 | if (r) { |
880 | dev_err(dev, "%s: read error: %d\n", __func__, r); | |
881 | goto out; | |
882 | } | |
883 | ||
884 | out: | |
885 | return val; | |
886 | } | |
887 | ||
888 | /** | |
889 | * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value. | |
890 | * @radio: A pointer to the device struct. | |
891 | * @preemphasis: The new pre-amphasis value. | |
892 | * | |
893 | * Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED, | |
894 | * V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS. | |
895 | */ | |
896 | static int wl1273_fm_set_preemphasis(struct wl1273_device *radio, | |
897 | unsigned int preemphasis) | |
898 | { | |
899 | struct wl1273_core *core = radio->core; | |
900 | int r; | |
901 | u16 em; | |
902 | ||
903 | if (core->mode == WL1273_MODE_OFF || | |
904 | core->mode == WL1273_MODE_SUSPENDED) | |
905 | return -EPERM; | |
906 | ||
907 | mutex_lock(&core->lock); | |
908 | ||
909 | switch (preemphasis) { | |
910 | case V4L2_PREEMPHASIS_DISABLED: | |
911 | em = 1; | |
912 | break; | |
913 | case V4L2_PREEMPHASIS_50_uS: | |
914 | em = 0; | |
915 | break; | |
916 | case V4L2_PREEMPHASIS_75_uS: | |
917 | em = 2; | |
918 | break; | |
919 | default: | |
920 | r = -EINVAL; | |
921 | goto out; | |
922 | } | |
923 | ||
96a9cc68 | 924 | r = core->write(core, WL1273_PREMPH_SET, em); |
87d1a50c MA |
925 | if (r) |
926 | goto out; | |
927 | ||
928 | radio->preemphasis = preemphasis; | |
929 | ||
930 | out: | |
931 | mutex_unlock(&core->lock); | |
932 | return r; | |
933 | } | |
934 | ||
935 | static int wl1273_fm_rds_on(struct wl1273_device *radio) | |
936 | { | |
937 | struct wl1273_core *core = radio->core; | |
938 | int r; | |
939 | ||
940 | dev_dbg(radio->dev, "%s\n", __func__); | |
941 | if (radio->rds_on) | |
942 | return 0; | |
943 | ||
96a9cc68 | 944 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
945 | WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS); |
946 | if (r) | |
947 | goto out; | |
948 | ||
949 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
950 | if (r) | |
951 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
952 | out: | |
953 | return r; | |
954 | } | |
955 | ||
956 | static int wl1273_fm_rds_off(struct wl1273_device *radio) | |
957 | { | |
958 | struct wl1273_core *core = radio->core; | |
959 | int r; | |
960 | ||
961 | if (!radio->rds_on) | |
962 | return 0; | |
963 | ||
964 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
965 | ||
96a9cc68 | 966 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
967 | if (r) |
968 | goto out; | |
969 | ||
87d1a50c MA |
970 | /* Service pending read */ |
971 | wake_up_interruptible(&radio->read_queue); | |
972 | ||
973 | dev_dbg(radio->dev, "%s\n", __func__); | |
974 | ||
96a9cc68 | 975 | r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM); |
87d1a50c MA |
976 | if (r) |
977 | goto out; | |
978 | ||
979 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
980 | if (r) | |
981 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
982 | out: | |
983 | dev_dbg(radio->dev, "%s: exiting...\n", __func__); | |
984 | ||
985 | return r; | |
986 | } | |
987 | ||
988 | static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode) | |
989 | { | |
990 | int r = 0; | |
991 | struct wl1273_core *core = radio->core; | |
992 | ||
993 | if (core->mode == WL1273_MODE_OFF || | |
994 | core->mode == WL1273_MODE_SUSPENDED) | |
995 | return -EPERM; | |
996 | ||
997 | if (new_mode == WL1273_RDS_RESET) { | |
96a9cc68 | 998 | r = core->write(core, WL1273_RDS_CNTRL_SET, 1); |
87d1a50c MA |
999 | return r; |
1000 | } | |
1001 | ||
1002 | if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) { | |
96a9cc68 | 1003 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c | 1004 | } else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) { |
96a9cc68 | 1005 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c MA |
1006 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) { |
1007 | r = wl1273_fm_rds_off(radio); | |
1008 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) { | |
1009 | r = wl1273_fm_rds_on(radio); | |
1010 | } else { | |
1011 | dev_err(radio->dev, "%s: Unknown mode: %d\n", | |
1012 | __func__, new_mode); | |
1013 | r = -EINVAL; | |
1014 | } | |
1015 | ||
1016 | if (!r) | |
1017 | radio->rds_on = (new_mode == WL1273_RDS_ON) ? true : false; | |
1018 | ||
1019 | return r; | |
1020 | } | |
1021 | ||
1022 | static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf, | |
1023 | size_t count, loff_t *ppos) | |
1024 | { | |
1025 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
96a9cc68 | 1026 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1027 | u16 val; |
1028 | int r; | |
1029 | ||
1030 | dev_dbg(radio->dev, "%s\n", __func__); | |
1031 | ||
96a9cc68 | 1032 | if (core->mode != WL1273_MODE_TX) |
87d1a50c MA |
1033 | return count; |
1034 | ||
1035 | if (radio->rds_users == 0) { | |
1036 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1037 | return 0; | |
1038 | } | |
1039 | ||
96a9cc68 | 1040 | if (mutex_lock_interruptible(&core->lock)) |
87d1a50c MA |
1041 | return -EINTR; |
1042 | /* | |
1043 | * Multiple processes can open the device, but only | |
1044 | * one gets to write to it. | |
1045 | */ | |
1046 | if (radio->owner && radio->owner != file) { | |
1047 | r = -EBUSY; | |
1048 | goto out; | |
1049 | } | |
1050 | radio->owner = file; | |
1051 | ||
1052 | /* Manual Mode */ | |
1053 | if (count > 255) | |
1054 | val = 255; | |
1055 | else | |
1056 | val = count; | |
1057 | ||
96a9cc68 | 1058 | core->write(core, WL1273_RDS_CONFIG_DATA_SET, val); |
87d1a50c MA |
1059 | |
1060 | if (copy_from_user(radio->write_buf + 1, buf, val)) { | |
1061 | r = -EFAULT; | |
1062 | goto out; | |
1063 | } | |
1064 | ||
1065 | dev_dbg(radio->dev, "Count: %d\n", val); | |
1066 | dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf); | |
1067 | ||
1068 | radio->write_buf[0] = WL1273_RDS_DATA_SET; | |
96a9cc68 | 1069 | core->write_data(core, radio->write_buf, val + 1); |
87d1a50c MA |
1070 | |
1071 | r = val; | |
1072 | out: | |
96a9cc68 | 1073 | mutex_unlock(&core->lock); |
87d1a50c MA |
1074 | |
1075 | return r; | |
1076 | } | |
1077 | ||
1078 | static unsigned int wl1273_fm_fops_poll(struct file *file, | |
1079 | struct poll_table_struct *pts) | |
1080 | { | |
1081 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1082 | struct wl1273_core *core = radio->core; | |
1083 | ||
1084 | if (radio->owner && radio->owner != file) | |
1085 | return -EBUSY; | |
1086 | ||
1087 | radio->owner = file; | |
1088 | ||
1089 | if (core->mode == WL1273_MODE_RX) { | |
1090 | poll_wait(file, &radio->read_queue, pts); | |
1091 | ||
1092 | if (radio->rd_index != radio->wr_index) | |
1093 | return POLLIN | POLLRDNORM; | |
1094 | ||
1095 | } else if (core->mode == WL1273_MODE_TX) { | |
1096 | return POLLOUT | POLLWRNORM; | |
1097 | } | |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | static int wl1273_fm_fops_open(struct file *file) | |
1103 | { | |
1104 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1105 | struct wl1273_core *core = radio->core; | |
1106 | int r = 0; | |
1107 | ||
1108 | dev_dbg(radio->dev, "%s\n", __func__); | |
1109 | ||
1110 | if (core->mode == WL1273_MODE_RX && radio->rds_on && | |
1111 | !radio->rds_users) { | |
1112 | dev_dbg(radio->dev, "%s: Mode: %d\n", __func__, core->mode); | |
1113 | ||
1114 | if (mutex_lock_interruptible(&core->lock)) | |
1115 | return -EINTR; | |
1116 | ||
1117 | radio->irq_flags |= WL1273_RDS_EVENT; | |
1118 | ||
96a9cc68 MA |
1119 | r = core->write(core, WL1273_INT_MASK_SET, |
1120 | radio->irq_flags); | |
87d1a50c MA |
1121 | if (r) { |
1122 | mutex_unlock(&core->lock); | |
1123 | goto out; | |
1124 | } | |
1125 | ||
1126 | radio->rds_users++; | |
1127 | ||
1128 | mutex_unlock(&core->lock); | |
1129 | } | |
1130 | out: | |
1131 | return r; | |
1132 | } | |
1133 | ||
1134 | static int wl1273_fm_fops_release(struct file *file) | |
1135 | { | |
1136 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1137 | struct wl1273_core *core = radio->core; | |
1138 | int r = 0; | |
1139 | ||
1140 | dev_dbg(radio->dev, "%s\n", __func__); | |
1141 | ||
1142 | if (radio->rds_users > 0) { | |
1143 | radio->rds_users--; | |
1144 | if (radio->rds_users == 0) { | |
1145 | if (mutex_lock_interruptible(&core->lock)) | |
1146 | return -EINTR; | |
1147 | ||
1148 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
1149 | ||
1150 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
1151 | r = core->write(core, |
1152 | WL1273_INT_MASK_SET, | |
1153 | radio->irq_flags); | |
87d1a50c MA |
1154 | if (r) { |
1155 | mutex_unlock(&core->lock); | |
1156 | goto out; | |
1157 | } | |
1158 | } | |
1159 | mutex_unlock(&core->lock); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | if (file == radio->owner) | |
1164 | radio->owner = NULL; | |
1165 | out: | |
1166 | return r; | |
1167 | } | |
1168 | ||
1169 | static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf, | |
1170 | size_t count, loff_t *ppos) | |
1171 | { | |
1172 | int r = 0; | |
1173 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1174 | struct wl1273_core *core = radio->core; | |
1175 | unsigned int block_count = 0; | |
1176 | u16 val; | |
1177 | ||
1178 | dev_dbg(radio->dev, "%s\n", __func__); | |
1179 | ||
96a9cc68 | 1180 | if (core->mode != WL1273_MODE_RX) |
87d1a50c MA |
1181 | return 0; |
1182 | ||
1183 | if (radio->rds_users == 0) { | |
1184 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | if (mutex_lock_interruptible(&core->lock)) | |
1189 | return -EINTR; | |
1190 | ||
1191 | /* | |
1192 | * Multiple processes can open the device, but only | |
1193 | * one at a time gets read access. | |
1194 | */ | |
1195 | if (radio->owner && radio->owner != file) { | |
1196 | r = -EBUSY; | |
1197 | goto out; | |
1198 | } | |
1199 | radio->owner = file; | |
1200 | ||
96a9cc68 | 1201 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1202 | if (r) { |
1203 | dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__); | |
1204 | goto out; | |
1205 | } else if (val == 0) { | |
1206 | dev_info(radio->dev, "RDS_SYNC: Not synchronized\n"); | |
1207 | r = -ENODATA; | |
1208 | goto out; | |
1209 | } | |
1210 | ||
1211 | /* block if no new data available */ | |
1212 | while (radio->wr_index == radio->rd_index) { | |
1213 | if (file->f_flags & O_NONBLOCK) { | |
1214 | r = -EWOULDBLOCK; | |
1215 | goto out; | |
1216 | } | |
1217 | ||
1218 | dev_dbg(radio->dev, "%s: Wait for RDS data.\n", __func__); | |
1219 | if (wait_event_interruptible(radio->read_queue, | |
1220 | radio->wr_index != | |
1221 | radio->rd_index) < 0) { | |
1222 | r = -EINTR; | |
1223 | goto out; | |
1224 | } | |
1225 | } | |
1226 | ||
1227 | /* calculate block count from byte count */ | |
1228 | count /= RDS_BLOCK_SIZE; | |
1229 | ||
1230 | /* copy RDS blocks from the internal buffer and to user buffer */ | |
1231 | while (block_count < count) { | |
1232 | if (radio->rd_index == radio->wr_index) | |
1233 | break; | |
1234 | ||
1235 | /* always transfer complete RDS blocks */ | |
1236 | if (copy_to_user(buf, &radio->buffer[radio->rd_index], | |
1237 | RDS_BLOCK_SIZE)) | |
1238 | break; | |
1239 | ||
1240 | /* increment and wrap the read pointer */ | |
1241 | radio->rd_index += RDS_BLOCK_SIZE; | |
1242 | if (radio->rd_index >= radio->buf_size) | |
1243 | radio->rd_index = 0; | |
1244 | ||
1245 | /* increment counters */ | |
1246 | block_count++; | |
1247 | buf += RDS_BLOCK_SIZE; | |
1248 | r += RDS_BLOCK_SIZE; | |
1249 | } | |
1250 | ||
1251 | out: | |
1252 | dev_dbg(radio->dev, "%s: exit\n", __func__); | |
1253 | mutex_unlock(&core->lock); | |
1254 | ||
1255 | return r; | |
1256 | } | |
1257 | ||
1258 | static const struct v4l2_file_operations wl1273_fops = { | |
1259 | .owner = THIS_MODULE, | |
1260 | .read = wl1273_fm_fops_read, | |
1261 | .write = wl1273_fm_fops_write, | |
1262 | .poll = wl1273_fm_fops_poll, | |
34b8fc8e | 1263 | .unlocked_ioctl = video_ioctl2, |
87d1a50c MA |
1264 | .open = wl1273_fm_fops_open, |
1265 | .release = wl1273_fm_fops_release, | |
1266 | }; | |
1267 | ||
1268 | static int wl1273_fm_vidioc_querycap(struct file *file, void *priv, | |
1269 | struct v4l2_capability *capability) | |
1270 | { | |
1271 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1272 | ||
1273 | dev_dbg(radio->dev, "%s\n", __func__); | |
1274 | ||
1275 | strlcpy(capability->driver, WL1273_FM_DRIVER_NAME, | |
1276 | sizeof(capability->driver)); | |
1277 | strlcpy(capability->card, "Texas Instruments Wl1273 FM Radio", | |
1278 | sizeof(capability->card)); | |
1279 | strlcpy(capability->bus_info, radio->bus_type, | |
1280 | sizeof(capability->bus_info)); | |
1281 | ||
1282 | capability->capabilities = V4L2_CAP_HW_FREQ_SEEK | | |
1283 | V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_AUDIO | | |
1284 | V4L2_CAP_RDS_CAPTURE | V4L2_CAP_MODULATOR | | |
1285 | V4L2_CAP_RDS_OUTPUT; | |
1286 | ||
1287 | return 0; | |
1288 | } | |
1289 | ||
1290 | static int wl1273_fm_vidioc_g_input(struct file *file, void *priv, | |
1291 | unsigned int *i) | |
1292 | { | |
1293 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1294 | ||
1295 | dev_dbg(radio->dev, "%s\n", __func__); | |
1296 | ||
1297 | *i = 0; | |
1298 | ||
1299 | return 0; | |
1300 | } | |
1301 | ||
1302 | static int wl1273_fm_vidioc_s_input(struct file *file, void *priv, | |
1303 | unsigned int i) | |
1304 | { | |
1305 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1306 | ||
1307 | dev_dbg(radio->dev, "%s\n", __func__); | |
1308 | ||
1309 | if (i != 0) | |
1310 | return -EINVAL; | |
1311 | ||
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | /** | |
1316 | * wl1273_fm_set_tx_power() - Set the transmission power value. | |
1317 | * @core: A pointer to the device struct. | |
1318 | * @power: The new power value. | |
1319 | */ | |
1320 | static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) | |
1321 | { | |
96a9cc68 | 1322 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1323 | int r; |
1324 | ||
96a9cc68 MA |
1325 | if (core->mode == WL1273_MODE_OFF || |
1326 | core->mode == WL1273_MODE_SUSPENDED) | |
87d1a50c MA |
1327 | return -EPERM; |
1328 | ||
96a9cc68 | 1329 | mutex_lock(&core->lock); |
87d1a50c MA |
1330 | |
1331 | /* Convert the dBuV value to chip presentation */ | |
96a9cc68 | 1332 | r = core->write(core, WL1273_POWER_LEV_SET, 122 - power); |
87d1a50c MA |
1333 | if (r) |
1334 | goto out; | |
1335 | ||
1336 | radio->tx_power = power; | |
1337 | ||
1338 | out: | |
96a9cc68 | 1339 | mutex_unlock(&core->lock); |
87d1a50c MA |
1340 | return r; |
1341 | } | |
1342 | ||
1343 | #define WL1273_SPACING_50kHz 1 | |
1344 | #define WL1273_SPACING_100kHz 2 | |
1345 | #define WL1273_SPACING_200kHz 4 | |
1346 | ||
1347 | static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio, | |
1348 | unsigned int spacing) | |
1349 | { | |
96a9cc68 | 1350 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1351 | int r; |
1352 | ||
1353 | if (spacing == 0) { | |
96a9cc68 MA |
1354 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1355 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1356 | radio->spacing = 100; |
1357 | } else if (spacing - 50000 < 25000) { | |
96a9cc68 MA |
1358 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1359 | WL1273_SPACING_50kHz); | |
87d1a50c MA |
1360 | radio->spacing = 50; |
1361 | } else if (spacing - 100000 < 50000) { | |
96a9cc68 MA |
1362 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1363 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1364 | radio->spacing = 100; |
1365 | } else { | |
96a9cc68 MA |
1366 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1367 | WL1273_SPACING_200kHz); | |
87d1a50c MA |
1368 | radio->spacing = 200; |
1369 | } | |
1370 | ||
1371 | return r; | |
1372 | } | |
1373 | ||
1374 | static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl) | |
1375 | { | |
1376 | struct wl1273_device *radio = ctrl->priv; | |
1377 | struct wl1273_core *core = radio->core; | |
1378 | ||
1379 | dev_dbg(radio->dev, "%s\n", __func__); | |
1380 | ||
1381 | if (mutex_lock_interruptible(&core->lock)) | |
1382 | return -EINTR; | |
1383 | ||
1384 | switch (ctrl->id) { | |
1385 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
ddac5c10 | 1386 | ctrl->val = wl1273_fm_get_tx_ctune(radio); |
87d1a50c MA |
1387 | break; |
1388 | ||
1389 | default: | |
1390 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1391 | __func__, ctrl->id); | |
1392 | break; | |
1393 | } | |
1394 | ||
1395 | mutex_unlock(&core->lock); | |
1396 | ||
1397 | return 0; | |
1398 | } | |
1399 | ||
1400 | #define WL1273_MUTE_SOFT_ENABLE (1 << 0) | |
1401 | #define WL1273_MUTE_AC (1 << 1) | |
1402 | #define WL1273_MUTE_HARD_LEFT (1 << 2) | |
1403 | #define WL1273_MUTE_HARD_RIGHT (1 << 3) | |
1404 | #define WL1273_MUTE_SOFT_FORCE (1 << 4) | |
1405 | ||
1406 | static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl) | |
1407 | { | |
1408 | return container_of(ctrl->handler, struct wl1273_device, ctrl_handler); | |
1409 | } | |
1410 | ||
1411 | static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl) | |
1412 | { | |
1413 | struct wl1273_device *radio = to_radio(ctrl); | |
1414 | struct wl1273_core *core = radio->core; | |
1415 | int r = 0; | |
1416 | ||
1417 | dev_dbg(radio->dev, "%s\n", __func__); | |
1418 | ||
1419 | switch (ctrl->id) { | |
1420 | case V4L2_CID_AUDIO_MUTE: | |
1421 | if (mutex_lock_interruptible(&core->lock)) | |
1422 | return -EINTR; | |
1423 | ||
1424 | if (core->mode == WL1273_MODE_RX && ctrl->val) | |
96a9cc68 MA |
1425 | r = core->write(core, |
1426 | WL1273_MUTE_STATUS_SET, | |
1427 | WL1273_MUTE_HARD_LEFT | | |
1428 | WL1273_MUTE_HARD_RIGHT); | |
87d1a50c | 1429 | else if (core->mode == WL1273_MODE_RX) |
96a9cc68 MA |
1430 | r = core->write(core, |
1431 | WL1273_MUTE_STATUS_SET, 0x0); | |
87d1a50c | 1432 | else if (core->mode == WL1273_MODE_TX && ctrl->val) |
96a9cc68 | 1433 | r = core->write(core, WL1273_MUTE, 1); |
87d1a50c | 1434 | else if (core->mode == WL1273_MODE_TX) |
96a9cc68 | 1435 | r = core->write(core, WL1273_MUTE, 0); |
87d1a50c MA |
1436 | |
1437 | mutex_unlock(&core->lock); | |
1438 | break; | |
1439 | ||
1440 | case V4L2_CID_AUDIO_VOLUME: | |
1441 | if (ctrl->val == 0) | |
1442 | r = wl1273_fm_set_mode(radio, WL1273_MODE_OFF); | |
1443 | else | |
1444 | r = core->set_volume(core, core->volume); | |
1445 | break; | |
1446 | ||
1447 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1448 | r = wl1273_fm_set_preemphasis(radio, ctrl->val); | |
1449 | break; | |
1450 | ||
1451 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1452 | r = wl1273_fm_set_tx_power(radio, ctrl->val); | |
1453 | break; | |
1454 | ||
1455 | default: | |
1456 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1457 | __func__, ctrl->id); | |
1458 | break; | |
1459 | } | |
1460 | ||
1461 | dev_dbg(radio->dev, "%s\n", __func__); | |
1462 | return r; | |
1463 | } | |
1464 | ||
1465 | static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv, | |
1466 | struct v4l2_audio *audio) | |
1467 | { | |
1468 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1469 | ||
1470 | dev_dbg(radio->dev, "%s\n", __func__); | |
1471 | ||
1472 | if (audio->index > 1) | |
1473 | return -EINVAL; | |
1474 | ||
1475 | strlcpy(audio->name, "Radio", sizeof(audio->name)); | |
1476 | audio->capability = V4L2_AUDCAP_STEREO; | |
1477 | ||
1478 | return 0; | |
1479 | } | |
1480 | ||
1481 | static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv, | |
0e8025b9 | 1482 | const struct v4l2_audio *audio) |
87d1a50c MA |
1483 | { |
1484 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1485 | ||
1486 | dev_dbg(radio->dev, "%s\n", __func__); | |
1487 | ||
1488 | if (audio->index != 0) | |
1489 | return -EINVAL; | |
1490 | ||
1491 | return 0; | |
1492 | } | |
1493 | ||
1494 | #define WL1273_RDS_NOT_SYNCHRONIZED 0 | |
1495 | #define WL1273_RDS_SYNCHRONIZED 1 | |
1496 | ||
1497 | static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, | |
1498 | struct v4l2_tuner *tuner) | |
1499 | { | |
1500 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1501 | struct wl1273_core *core = radio->core; | |
1502 | u16 val; | |
1503 | int r; | |
1504 | ||
1505 | dev_dbg(radio->dev, "%s\n", __func__); | |
1506 | ||
1507 | if (tuner->index > 0) | |
1508 | return -EINVAL; | |
1509 | ||
1510 | strlcpy(tuner->name, WL1273_FM_DRIVER_NAME, sizeof(tuner->name)); | |
1511 | tuner->type = V4L2_TUNER_RADIO; | |
1512 | ||
1513 | tuner->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1514 | tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1515 | ||
1516 | tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
54f6019b HV |
1517 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO | |
1518 | V4L2_TUNER_CAP_HWSEEK_BOUNDED | V4L2_TUNER_CAP_HWSEEK_WRAP; | |
87d1a50c MA |
1519 | |
1520 | if (radio->stereo) | |
1521 | tuner->audmode = V4L2_TUNER_MODE_STEREO; | |
1522 | else | |
1523 | tuner->audmode = V4L2_TUNER_MODE_MONO; | |
1524 | ||
1525 | if (core->mode != WL1273_MODE_RX) | |
1526 | return 0; | |
1527 | ||
1528 | if (mutex_lock_interruptible(&core->lock)) | |
1529 | return -EINTR; | |
1530 | ||
96a9cc68 | 1531 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1532 | if (r) |
1533 | goto out; | |
1534 | ||
1535 | if (val == 1) | |
1536 | tuner->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
1537 | else | |
1538 | tuner->rxsubchans = V4L2_TUNER_SUB_MONO; | |
1539 | ||
96a9cc68 | 1540 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1541 | if (r) |
1542 | goto out; | |
1543 | ||
1544 | tuner->signal = (s16) val; | |
1545 | dev_dbg(radio->dev, "Signal: %d\n", tuner->signal); | |
1546 | ||
1547 | tuner->afc = 0; | |
1548 | ||
96a9cc68 | 1549 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1550 | if (r) |
1551 | goto out; | |
1552 | ||
1553 | if (val == WL1273_RDS_SYNCHRONIZED) | |
1554 | tuner->rxsubchans |= V4L2_TUNER_SUB_RDS; | |
1555 | out: | |
1556 | mutex_unlock(&core->lock); | |
1557 | ||
1558 | return r; | |
1559 | } | |
1560 | ||
1561 | static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv, | |
1562 | struct v4l2_tuner *tuner) | |
1563 | { | |
1564 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1565 | struct wl1273_core *core = radio->core; | |
1566 | int r = 0; | |
1567 | ||
1568 | dev_dbg(radio->dev, "%s\n", __func__); | |
1569 | dev_dbg(radio->dev, "tuner->index: %d\n", tuner->index); | |
1570 | dev_dbg(radio->dev, "tuner->name: %s\n", tuner->name); | |
1571 | dev_dbg(radio->dev, "tuner->capability: 0x%04x\n", tuner->capability); | |
1572 | dev_dbg(radio->dev, "tuner->rxsubchans: 0x%04x\n", tuner->rxsubchans); | |
1573 | dev_dbg(radio->dev, "tuner->rangelow: %d\n", tuner->rangelow); | |
1574 | dev_dbg(radio->dev, "tuner->rangehigh: %d\n", tuner->rangehigh); | |
1575 | ||
1576 | if (tuner->index > 0) | |
1577 | return -EINVAL; | |
1578 | ||
1579 | if (mutex_lock_interruptible(&core->lock)) | |
1580 | return -EINTR; | |
1581 | ||
1582 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1583 | if (r) | |
1584 | goto out; | |
1585 | ||
1586 | if (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) | |
1587 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1588 | else | |
1589 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1590 | ||
1591 | if (r) | |
1592 | dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r); | |
1593 | ||
1594 | if (tuner->audmode == V4L2_TUNER_MODE_MONO) { | |
96a9cc68 | 1595 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO); |
87d1a50c MA |
1596 | if (r < 0) { |
1597 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1598 | __func__, r); | |
1599 | goto out; | |
1600 | } | |
1601 | radio->stereo = false; | |
1602 | } else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) { | |
96a9cc68 | 1603 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO); |
87d1a50c MA |
1604 | if (r < 0) { |
1605 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1606 | __func__, r); | |
1607 | goto out; | |
1608 | } | |
1609 | radio->stereo = true; | |
1610 | } else { | |
1611 | dev_err(radio->dev, "%s: tuner->audmode: %d\n", | |
1612 | __func__, tuner->audmode); | |
1613 | r = -EINVAL; | |
1614 | goto out; | |
1615 | } | |
1616 | ||
1617 | out: | |
1618 | mutex_unlock(&core->lock); | |
1619 | ||
1620 | return r; | |
1621 | } | |
1622 | ||
1623 | static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv, | |
1624 | struct v4l2_frequency *freq) | |
1625 | { | |
1626 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1627 | struct wl1273_core *core = radio->core; | |
1628 | ||
1629 | dev_dbg(radio->dev, "%s\n", __func__); | |
1630 | ||
1631 | if (mutex_lock_interruptible(&core->lock)) | |
1632 | return -EINTR; | |
1633 | ||
1634 | freq->type = V4L2_TUNER_RADIO; | |
1635 | freq->frequency = WL1273_FREQ(wl1273_fm_get_freq(radio)); | |
1636 | ||
1637 | mutex_unlock(&core->lock); | |
1638 | ||
1639 | return 0; | |
1640 | } | |
1641 | ||
1642 | static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv, | |
1643 | struct v4l2_frequency *freq) | |
1644 | { | |
1645 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1646 | struct wl1273_core *core = radio->core; | |
1647 | int r; | |
1648 | ||
1649 | dev_dbg(radio->dev, "%s: %d\n", __func__, freq->frequency); | |
1650 | ||
1651 | if (freq->type != V4L2_TUNER_RADIO) { | |
1652 | dev_dbg(radio->dev, | |
1653 | "freq->type != V4L2_TUNER_RADIO: %d\n", freq->type); | |
1654 | return -EINVAL; | |
1655 | } | |
1656 | ||
1657 | if (mutex_lock_interruptible(&core->lock)) | |
1658 | return -EINTR; | |
1659 | ||
1660 | if (core->mode == WL1273_MODE_RX) { | |
1661 | dev_dbg(radio->dev, "freq: %d\n", freq->frequency); | |
1662 | ||
1663 | r = wl1273_fm_set_rx_freq(radio, | |
1664 | WL1273_INV_FREQ(freq->frequency)); | |
1665 | if (r) | |
1666 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1667 | ": set frequency failed with %d\n", r); | |
1668 | } else { | |
1669 | r = wl1273_fm_set_tx_freq(radio, | |
1670 | WL1273_INV_FREQ(freq->frequency)); | |
1671 | if (r) | |
1672 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1673 | ": set frequency failed with %d\n", r); | |
1674 | } | |
1675 | ||
1676 | mutex_unlock(&core->lock); | |
1677 | ||
1678 | dev_dbg(radio->dev, "wl1273_vidioc_s_frequency: DONE\n"); | |
1679 | return r; | |
1680 | } | |
1681 | ||
1682 | #define WL1273_DEFAULT_SEEK_LEVEL 7 | |
1683 | ||
1684 | static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv, | |
ec6f4328 | 1685 | const struct v4l2_hw_freq_seek *seek) |
87d1a50c MA |
1686 | { |
1687 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1688 | struct wl1273_core *core = radio->core; | |
1689 | int r; | |
1690 | ||
1691 | dev_dbg(radio->dev, "%s\n", __func__); | |
1692 | ||
1693 | if (seek->tuner != 0 || seek->type != V4L2_TUNER_RADIO) | |
1694 | return -EINVAL; | |
1695 | ||
617ade61 HV |
1696 | if (file->f_flags & O_NONBLOCK) |
1697 | return -EWOULDBLOCK; | |
1698 | ||
87d1a50c MA |
1699 | if (mutex_lock_interruptible(&core->lock)) |
1700 | return -EINTR; | |
1701 | ||
1702 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1703 | if (r) | |
1704 | goto out; | |
1705 | ||
1706 | r = wl1273_fm_tx_set_spacing(radio, seek->spacing); | |
1707 | if (r) | |
1708 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1709 | ||
1710 | r = wl1273_fm_set_seek(radio, seek->wrap_around, seek->seek_upward, | |
1711 | WL1273_DEFAULT_SEEK_LEVEL); | |
1712 | if (r) | |
1713 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1714 | ||
1715 | out: | |
1716 | mutex_unlock(&core->lock); | |
1717 | return r; | |
1718 | } | |
1719 | ||
1720 | static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv, | |
3f70e1f5 | 1721 | const struct v4l2_modulator *modulator) |
87d1a50c MA |
1722 | { |
1723 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1724 | struct wl1273_core *core = radio->core; | |
1725 | int r = 0; | |
1726 | ||
1727 | dev_dbg(radio->dev, "%s\n", __func__); | |
1728 | ||
1729 | if (modulator->index > 0) | |
1730 | return -EINVAL; | |
1731 | ||
1732 | if (mutex_lock_interruptible(&core->lock)) | |
1733 | return -EINTR; | |
1734 | ||
1735 | r = wl1273_fm_set_mode(radio, WL1273_MODE_TX); | |
1736 | if (r) | |
1737 | goto out; | |
1738 | ||
1739 | if (modulator->txsubchans & V4L2_TUNER_SUB_RDS) | |
1740 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1741 | else | |
1742 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1743 | ||
1744 | if (modulator->txsubchans & V4L2_TUNER_SUB_MONO) | |
96a9cc68 | 1745 | r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO); |
87d1a50c | 1746 | else |
96a9cc68 MA |
1747 | r = core->write(core, WL1273_MONO_SET, |
1748 | WL1273_RX_STEREO); | |
87d1a50c MA |
1749 | if (r < 0) |
1750 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1751 | "MONO_SET fails: %d\n", r); | |
1752 | out: | |
1753 | mutex_unlock(&core->lock); | |
1754 | ||
1755 | return r; | |
1756 | } | |
1757 | ||
1758 | static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv, | |
1759 | struct v4l2_modulator *modulator) | |
1760 | { | |
1761 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1762 | struct wl1273_core *core = radio->core; | |
1763 | u16 val; | |
1764 | int r; | |
1765 | ||
1766 | dev_dbg(radio->dev, "%s\n", __func__); | |
1767 | ||
1768 | strlcpy(modulator->name, WL1273_FM_DRIVER_NAME, | |
1769 | sizeof(modulator->name)); | |
1770 | ||
1771 | modulator->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1772 | modulator->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1773 | ||
1774 | modulator->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
1775 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; | |
1776 | ||
1777 | if (core->mode != WL1273_MODE_TX) | |
1778 | return 0; | |
1779 | ||
1780 | if (mutex_lock_interruptible(&core->lock)) | |
1781 | return -EINTR; | |
1782 | ||
96a9cc68 | 1783 | r = core->read(core, WL1273_MONO_SET, &val); |
87d1a50c MA |
1784 | if (r) |
1785 | goto out; | |
1786 | ||
1787 | if (val == WL1273_TX_STEREO) | |
1788 | modulator->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1789 | else | |
1790 | modulator->txsubchans = V4L2_TUNER_SUB_MONO; | |
1791 | ||
1792 | if (radio->rds_on) | |
1793 | modulator->txsubchans |= V4L2_TUNER_SUB_RDS; | |
1794 | out: | |
1795 | mutex_unlock(&core->lock); | |
1796 | ||
1797 | return 0; | |
1798 | } | |
1799 | ||
1800 | static int wl1273_fm_vidioc_log_status(struct file *file, void *priv) | |
1801 | { | |
1802 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1803 | struct wl1273_core *core = radio->core; | |
1804 | struct device *dev = radio->dev; | |
1805 | u16 val; | |
1806 | int r; | |
1807 | ||
1808 | dev_info(dev, DRIVER_DESC); | |
1809 | ||
1810 | if (core->mode == WL1273_MODE_OFF) { | |
1811 | dev_info(dev, "Mode: Off\n"); | |
1812 | return 0; | |
1813 | } | |
1814 | ||
1815 | if (core->mode == WL1273_MODE_SUSPENDED) { | |
1816 | dev_info(dev, "Mode: Suspended\n"); | |
1817 | return 0; | |
1818 | } | |
1819 | ||
96a9cc68 | 1820 | r = core->read(core, WL1273_ASIC_ID_GET, &val); |
87d1a50c MA |
1821 | if (r) |
1822 | dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__); | |
1823 | else | |
1824 | dev_info(dev, "ASIC_ID: 0x%04x\n", val); | |
1825 | ||
96a9cc68 | 1826 | r = core->read(core, WL1273_ASIC_VER_GET, &val); |
87d1a50c MA |
1827 | if (r) |
1828 | dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__); | |
1829 | else | |
1830 | dev_info(dev, "ASIC Version: 0x%04x\n", val); | |
1831 | ||
96a9cc68 | 1832 | r = core->read(core, WL1273_FIRM_VER_GET, &val); |
87d1a50c MA |
1833 | if (r) |
1834 | dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__); | |
1835 | else | |
1836 | dev_info(dev, "FW version: %d(0x%04x)\n", val, val); | |
1837 | ||
96a9cc68 | 1838 | r = core->read(core, WL1273_BAND_SET, &val); |
87d1a50c MA |
1839 | if (r) |
1840 | dev_err(dev, "%s: Get BAND fails.\n", __func__); | |
1841 | else | |
1842 | dev_info(dev, "BAND: %d\n", val); | |
1843 | ||
1844 | if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 | 1845 | r = core->read(core, WL1273_PUPD_SET, &val); |
87d1a50c MA |
1846 | if (r) |
1847 | dev_err(dev, "%s: Get PUPD fails.\n", __func__); | |
1848 | else | |
1849 | dev_info(dev, "PUPD: 0x%04x\n", val); | |
1850 | ||
96a9cc68 | 1851 | r = core->read(core, WL1273_CHANL_SET, &val); |
87d1a50c MA |
1852 | if (r) |
1853 | dev_err(dev, "%s: Get CHANL fails.\n", __func__); | |
1854 | else | |
1855 | dev_info(dev, "Tx frequency: %dkHz\n", val*10); | |
1856 | } else if (core->mode == WL1273_MODE_RX) { | |
1857 | int bf = radio->rangelow; | |
1858 | ||
96a9cc68 | 1859 | r = core->read(core, WL1273_FREQ_SET, &val); |
87d1a50c MA |
1860 | if (r) |
1861 | dev_err(dev, "%s: Get FREQ fails.\n", __func__); | |
1862 | else | |
1863 | dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50); | |
1864 | ||
96a9cc68 | 1865 | r = core->read(core, WL1273_MOST_MODE_SET, &val); |
87d1a50c MA |
1866 | if (r) |
1867 | dev_err(dev, "%s: Get MOST_MODE fails.\n", | |
1868 | __func__); | |
1869 | else if (val == 0) | |
1870 | dev_info(dev, "MOST_MODE: Stereo according to blend\n"); | |
1871 | else if (val == 1) | |
1872 | dev_info(dev, "MOST_MODE: Force mono output\n"); | |
1873 | else | |
1874 | dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val); | |
1875 | ||
96a9cc68 | 1876 | r = core->read(core, WL1273_MOST_BLEND_SET, &val); |
87d1a50c MA |
1877 | if (r) |
1878 | dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__); | |
1879 | else if (val == 0) | |
1880 | dev_info(dev, | |
1881 | "MOST_BLEND: Switched blend & hysteresis.\n"); | |
1882 | else if (val == 1) | |
1883 | dev_info(dev, "MOST_BLEND: Soft blend.\n"); | |
1884 | else | |
1885 | dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val); | |
1886 | ||
96a9cc68 | 1887 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1888 | if (r) |
1889 | dev_err(dev, "%s: Get STEREO fails.\n", __func__); | |
1890 | else if (val == 0) | |
1891 | dev_info(dev, "STEREO: Not detected\n"); | |
1892 | else if (val == 1) | |
1893 | dev_info(dev, "STEREO: Detected\n"); | |
1894 | else | |
1895 | dev_info(dev, "STEREO: Unexpected value: %d\n", val); | |
1896 | ||
96a9cc68 | 1897 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1898 | if (r) |
1899 | dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__); | |
1900 | else | |
1901 | dev_info(dev, "RX signal strength: %d\n", (s16) val); | |
1902 | ||
96a9cc68 | 1903 | r = core->read(core, WL1273_POWER_SET, &val); |
87d1a50c MA |
1904 | if (r) |
1905 | dev_err(dev, "%s: Get POWER fails.\n", __func__); | |
1906 | else | |
1907 | dev_info(dev, "POWER: 0x%04x\n", val); | |
1908 | ||
96a9cc68 | 1909 | r = core->read(core, WL1273_INT_MASK_SET, &val); |
87d1a50c MA |
1910 | if (r) |
1911 | dev_err(dev, "%s: Get INT_MASK fails.\n", __func__); | |
1912 | else | |
1913 | dev_info(dev, "INT_MASK: 0x%04x\n", val); | |
1914 | ||
96a9cc68 | 1915 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1916 | if (r) |
1917 | dev_err(dev, "%s: Get RDS_SYNC fails.\n", | |
1918 | __func__); | |
1919 | else if (val == 0) | |
1920 | dev_info(dev, "RDS_SYNC: Not synchronized\n"); | |
1921 | ||
1922 | else if (val == 1) | |
1923 | dev_info(dev, "RDS_SYNC: Synchronized\n"); | |
1924 | else | |
1925 | dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val); | |
1926 | ||
96a9cc68 | 1927 | r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val); |
87d1a50c MA |
1928 | if (r) |
1929 | dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n", | |
1930 | __func__); | |
1931 | else | |
1932 | dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val); | |
1933 | ||
96a9cc68 | 1934 | r = core->read(core, WL1273_VOLUME_SET, &val); |
87d1a50c MA |
1935 | if (r) |
1936 | dev_err(dev, "%s: Get VOLUME fails.\n", __func__); | |
1937 | else | |
1938 | dev_info(dev, "VOLUME: 0x%04x\n", val); | |
1939 | } | |
1940 | ||
1941 | return 0; | |
1942 | } | |
1943 | ||
1944 | static void wl1273_vdev_release(struct video_device *dev) | |
1945 | { | |
1946 | } | |
1947 | ||
1948 | static const struct v4l2_ctrl_ops wl1273_ctrl_ops = { | |
1949 | .s_ctrl = wl1273_fm_vidioc_s_ctrl, | |
1950 | .g_volatile_ctrl = wl1273_fm_g_volatile_ctrl, | |
1951 | }; | |
1952 | ||
1953 | static const struct v4l2_ioctl_ops wl1273_ioctl_ops = { | |
1954 | .vidioc_querycap = wl1273_fm_vidioc_querycap, | |
1955 | .vidioc_g_input = wl1273_fm_vidioc_g_input, | |
1956 | .vidioc_s_input = wl1273_fm_vidioc_s_input, | |
1957 | .vidioc_g_audio = wl1273_fm_vidioc_g_audio, | |
1958 | .vidioc_s_audio = wl1273_fm_vidioc_s_audio, | |
1959 | .vidioc_g_tuner = wl1273_fm_vidioc_g_tuner, | |
1960 | .vidioc_s_tuner = wl1273_fm_vidioc_s_tuner, | |
1961 | .vidioc_g_frequency = wl1273_fm_vidioc_g_frequency, | |
1962 | .vidioc_s_frequency = wl1273_fm_vidioc_s_frequency, | |
1963 | .vidioc_s_hw_freq_seek = wl1273_fm_vidioc_s_hw_freq_seek, | |
1964 | .vidioc_g_modulator = wl1273_fm_vidioc_g_modulator, | |
1965 | .vidioc_s_modulator = wl1273_fm_vidioc_s_modulator, | |
1966 | .vidioc_log_status = wl1273_fm_vidioc_log_status, | |
1967 | }; | |
1968 | ||
1969 | static struct video_device wl1273_viddev_template = { | |
1970 | .fops = &wl1273_fops, | |
1971 | .ioctl_ops = &wl1273_ioctl_ops, | |
1972 | .name = WL1273_FM_DRIVER_NAME, | |
1973 | .release = wl1273_vdev_release, | |
1974 | }; | |
1975 | ||
1976 | static int wl1273_fm_radio_remove(struct platform_device *pdev) | |
1977 | { | |
1978 | struct wl1273_device *radio = platform_get_drvdata(pdev); | |
1979 | struct wl1273_core *core = radio->core; | |
1980 | ||
1981 | dev_info(&pdev->dev, "%s.\n", __func__); | |
1982 | ||
1983 | free_irq(core->client->irq, radio); | |
1984 | core->pdata->free_resources(); | |
1985 | ||
1986 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
1987 | video_unregister_device(&radio->videodev); | |
1988 | v4l2_device_unregister(&radio->v4l2dev); | |
87d1a50c MA |
1989 | |
1990 | return 0; | |
1991 | } | |
1992 | ||
4c62e976 | 1993 | static int wl1273_fm_radio_probe(struct platform_device *pdev) |
87d1a50c | 1994 | { |
9e554696 | 1995 | struct wl1273_core **core = pdev->dev.platform_data; |
87d1a50c MA |
1996 | struct wl1273_device *radio; |
1997 | struct v4l2_ctrl *ctrl; | |
1998 | int r = 0; | |
1999 | ||
2000 | pr_debug("%s\n", __func__); | |
2001 | ||
2002 | if (!core) { | |
2003 | dev_err(&pdev->dev, "No platform data.\n"); | |
2004 | r = -EINVAL; | |
2005 | goto pdata_err; | |
2006 | } | |
2007 | ||
d91e0139 | 2008 | radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL); |
87d1a50c MA |
2009 | if (!radio) { |
2010 | r = -ENOMEM; | |
2011 | goto pdata_err; | |
2012 | } | |
2013 | ||
2014 | /* RDS buffer allocation */ | |
2015 | radio->buf_size = rds_buf * RDS_BLOCK_SIZE; | |
d91e0139 | 2016 | radio->buffer = devm_kzalloc(&pdev->dev, radio->buf_size, GFP_KERNEL); |
87d1a50c MA |
2017 | if (!radio->buffer) { |
2018 | pr_err("Cannot allocate memory for RDS buffer.\n"); | |
2019 | r = -ENOMEM; | |
d91e0139 | 2020 | goto pdata_err; |
87d1a50c MA |
2021 | } |
2022 | ||
2023 | radio->core = *core; | |
2024 | radio->irq_flags = WL1273_IRQ_MASK; | |
2025 | radio->dev = &radio->core->client->dev; | |
2026 | radio->rds_on = false; | |
2027 | radio->core->mode = WL1273_MODE_OFF; | |
2028 | radio->tx_power = 118; | |
2029 | radio->core->audio_mode = WL1273_AUDIO_ANALOG; | |
2030 | radio->band = WL1273_BAND_OTHER; | |
2031 | radio->core->i2s_mode = WL1273_I2S_DEF_MODE; | |
2032 | radio->core->channel_number = 2; | |
2033 | radio->core->volume = WL1273_DEFAULT_VOLUME; | |
2034 | radio->rx_frequency = WL1273_BAND_OTHER_LOW; | |
2035 | radio->tx_frequency = WL1273_BAND_OTHER_HIGH; | |
2036 | radio->rangelow = WL1273_BAND_OTHER_LOW; | |
2037 | radio->rangehigh = WL1273_BAND_OTHER_HIGH; | |
2038 | radio->stereo = true; | |
2039 | radio->bus_type = "I2C"; | |
2040 | ||
87d1a50c MA |
2041 | if (radio->core->pdata->request_resources) { |
2042 | r = radio->core->pdata->request_resources(radio->core->client); | |
2043 | if (r) { | |
2044 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2045 | ": Cannot get platform data\n"); | |
d91e0139 | 2046 | goto pdata_err; |
87d1a50c MA |
2047 | } |
2048 | ||
2049 | dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq); | |
2050 | ||
2051 | r = request_threaded_irq(radio->core->client->irq, NULL, | |
2052 | wl1273_fm_irq_thread_handler, | |
2053 | IRQF_ONESHOT | IRQF_TRIGGER_FALLING, | |
2054 | "wl1273-fm", radio); | |
2055 | if (r < 0) { | |
2056 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2057 | ": Unable to register IRQ handler: %d\n", r); | |
2058 | goto err_request_irq; | |
2059 | } | |
2060 | } else { | |
2061 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ" | |
2062 | " not configured"); | |
2063 | r = -EINVAL; | |
d91e0139 | 2064 | goto pdata_err; |
87d1a50c MA |
2065 | } |
2066 | ||
2067 | init_completion(&radio->busy); | |
2068 | init_waitqueue_head(&radio->read_queue); | |
2069 | ||
d91e0139 | 2070 | radio->write_buf = devm_kzalloc(&pdev->dev, 256, GFP_KERNEL); |
87d1a50c MA |
2071 | if (!radio->write_buf) { |
2072 | r = -ENOMEM; | |
2073 | goto write_buf_err; | |
2074 | } | |
2075 | ||
2076 | radio->dev = &pdev->dev; | |
2077 | radio->v4l2dev.ctrl_handler = &radio->ctrl_handler; | |
2078 | radio->rds_users = 0; | |
2079 | ||
2080 | r = v4l2_device_register(&pdev->dev, &radio->v4l2dev); | |
2081 | if (r) { | |
2082 | dev_err(&pdev->dev, "Cannot register v4l2_device.\n"); | |
d91e0139 | 2083 | goto write_buf_err; |
87d1a50c MA |
2084 | } |
2085 | ||
2086 | /* V4L2 configuration */ | |
2087 | memcpy(&radio->videodev, &wl1273_viddev_template, | |
2088 | sizeof(wl1273_viddev_template)); | |
2089 | ||
2090 | radio->videodev.v4l2_dev = &radio->v4l2dev; | |
2091 | ||
2092 | v4l2_ctrl_handler_init(&radio->ctrl_handler, 6); | |
2093 | ||
2094 | /* add in ascending ID order */ | |
2095 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2096 | V4L2_CID_AUDIO_VOLUME, 0, WL1273_MAX_VOLUME, 1, | |
2097 | WL1273_DEFAULT_VOLUME); | |
2098 | ||
2099 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2100 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); | |
2101 | ||
2102 | v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2103 | V4L2_CID_TUNE_PREEMPHASIS, | |
2104 | V4L2_PREEMPHASIS_75_uS, 0x03, | |
2105 | V4L2_PREEMPHASIS_50_uS); | |
2106 | ||
2107 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2108 | V4L2_CID_TUNE_POWER_LEVEL, 91, 122, 1, 118); | |
2109 | ||
2110 | ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2111 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, | |
2112 | 0, 255, 1, 255); | |
2113 | if (ctrl) | |
88365105 | 2114 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; |
87d1a50c MA |
2115 | |
2116 | if (radio->ctrl_handler.error) { | |
2117 | r = radio->ctrl_handler.error; | |
2118 | dev_err(&pdev->dev, "Ctrl handler error: %d\n", r); | |
2119 | goto handler_init_err; | |
2120 | } | |
2121 | ||
2122 | video_set_drvdata(&radio->videodev, radio); | |
2123 | platform_set_drvdata(pdev, radio); | |
2124 | ||
2125 | /* register video device */ | |
2126 | r = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr); | |
2127 | if (r) { | |
2128 | dev_err(&pdev->dev, WL1273_FM_DRIVER_NAME | |
2129 | ": Could not register video device\n"); | |
2130 | goto handler_init_err; | |
2131 | } | |
2132 | ||
2133 | return 0; | |
2134 | ||
2135 | handler_init_err: | |
2136 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
2137 | v4l2_device_unregister(&radio->v4l2dev); | |
87d1a50c MA |
2138 | write_buf_err: |
2139 | free_irq(radio->core->client->irq, radio); | |
2140 | err_request_irq: | |
2141 | radio->core->pdata->free_resources(); | |
87d1a50c MA |
2142 | pdata_err: |
2143 | return r; | |
2144 | } | |
2145 | ||
87d1a50c MA |
2146 | static struct platform_driver wl1273_fm_radio_driver = { |
2147 | .probe = wl1273_fm_radio_probe, | |
4c62e976 | 2148 | .remove = wl1273_fm_radio_remove, |
87d1a50c MA |
2149 | .driver = { |
2150 | .name = "wl1273_fm_radio", | |
2151 | .owner = THIS_MODULE, | |
2152 | }, | |
2153 | }; | |
2154 | ||
1d6629b1 | 2155 | module_platform_driver(wl1273_fm_radio_driver); |
87d1a50c MA |
2156 | |
2157 | MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>"); | |
2158 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2159 | MODULE_LICENSE("GPL"); | |
1d6629b1 | 2160 | MODULE_ALIAS("platform:wl1273_fm_radio"); |