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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; | |
daa939db | 350 | unsigned long t; |
87d1a50c MA |
351 | |
352 | if (freq < WL1273_BAND_TX_LOW) { | |
353 | dev_err(radio->dev, | |
354 | "Frequency out of range: %d < %d\n", freq, | |
355 | WL1273_BAND_TX_LOW); | |
356 | return -ERANGE; | |
357 | } | |
358 | ||
359 | if (freq > WL1273_BAND_TX_HIGH) { | |
360 | dev_err(radio->dev, | |
361 | "Frequency out of range: %d > %d\n", freq, | |
362 | WL1273_BAND_TX_HIGH); | |
363 | return -ERANGE; | |
364 | } | |
365 | ||
366 | /* | |
367 | * The driver works better with this sleep, | |
368 | * the documentation doesn't mention it. | |
369 | */ | |
370 | usleep_range(5000, 10000); | |
371 | ||
372 | dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq); | |
373 | ||
374 | /* Set the current tx channel */ | |
96a9cc68 | 375 | r = core->write(core, WL1273_CHANL_SET, freq / 10); |
87d1a50c MA |
376 | if (r) |
377 | return r; | |
378 | ||
16735d02 | 379 | reinit_completion(&radio->busy); |
87d1a50c MA |
380 | |
381 | /* wait for the FR IRQ */ | |
daa939db NMG |
382 | t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); |
383 | if (!t) | |
87d1a50c MA |
384 | return -ETIMEDOUT; |
385 | ||
daa939db | 386 | dev_dbg(radio->dev, "WL1273_CHANL_SET: %lu\n", t); |
87d1a50c MA |
387 | |
388 | /* Enable the output power */ | |
96a9cc68 | 389 | r = core->write(core, WL1273_POWER_ENB_SET, 1); |
87d1a50c MA |
390 | if (r) |
391 | return r; | |
392 | ||
16735d02 | 393 | reinit_completion(&radio->busy); |
87d1a50c MA |
394 | |
395 | /* wait for the POWER_ENB IRQ */ | |
daa939db NMG |
396 | t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); |
397 | if (!t) | |
87d1a50c MA |
398 | return -ETIMEDOUT; |
399 | ||
400 | radio->tx_frequency = freq; | |
daa939db | 401 | dev_dbg(radio->dev, "WL1273_POWER_ENB_SET: %lu\n", t); |
87d1a50c MA |
402 | |
403 | return 0; | |
404 | } | |
405 | ||
406 | static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq) | |
407 | { | |
408 | struct wl1273_core *core = radio->core; | |
409 | int r, f; | |
daa939db | 410 | unsigned long t; |
87d1a50c MA |
411 | |
412 | if (freq < radio->rangelow) { | |
413 | dev_err(radio->dev, | |
414 | "Frequency out of range: %d < %d\n", freq, | |
415 | radio->rangelow); | |
416 | r = -ERANGE; | |
417 | goto err; | |
418 | } | |
419 | ||
420 | if (freq > radio->rangehigh) { | |
421 | dev_err(radio->dev, | |
422 | "Frequency out of range: %d > %d\n", freq, | |
423 | radio->rangehigh); | |
424 | r = -ERANGE; | |
425 | goto err; | |
426 | } | |
427 | ||
428 | dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq); | |
429 | ||
96a9cc68 | 430 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
431 | |
432 | if (radio->band == WL1273_BAND_JAPAN) | |
433 | f = (freq - WL1273_BAND_JAPAN_LOW) / 50; | |
434 | else | |
435 | f = (freq - WL1273_BAND_OTHER_LOW) / 50; | |
436 | ||
96a9cc68 | 437 | r = core->write(core, WL1273_FREQ_SET, f); |
87d1a50c MA |
438 | if (r) { |
439 | dev_err(radio->dev, "FREQ_SET fails\n"); | |
440 | goto err; | |
441 | } | |
442 | ||
96a9cc68 | 443 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET); |
87d1a50c MA |
444 | if (r) { |
445 | dev_err(radio->dev, "TUNER_MODE_SET fails\n"); | |
446 | goto err; | |
447 | } | |
448 | ||
16735d02 | 449 | reinit_completion(&radio->busy); |
87d1a50c | 450 | |
daa939db NMG |
451 | t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); |
452 | if (!t) { | |
87d1a50c MA |
453 | dev_err(radio->dev, "%s: TIMEOUT\n", __func__); |
454 | return -ETIMEDOUT; | |
455 | } | |
456 | ||
457 | radio->rd_index = 0; | |
458 | radio->wr_index = 0; | |
459 | radio->rx_frequency = freq; | |
460 | return 0; | |
461 | err: | |
462 | return r; | |
463 | } | |
464 | ||
465 | static int wl1273_fm_get_freq(struct wl1273_device *radio) | |
466 | { | |
467 | struct wl1273_core *core = radio->core; | |
468 | unsigned int freq; | |
469 | u16 f; | |
470 | int r; | |
471 | ||
472 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 473 | r = core->read(core, WL1273_FREQ_SET, &f); |
87d1a50c MA |
474 | if (r) |
475 | return r; | |
476 | ||
477 | dev_dbg(radio->dev, "Freq get: 0x%04x\n", f); | |
478 | if (radio->band == WL1273_BAND_JAPAN) | |
479 | freq = WL1273_BAND_JAPAN_LOW + 50 * f; | |
480 | else | |
481 | freq = WL1273_BAND_OTHER_LOW + 50 * f; | |
482 | } else { | |
96a9cc68 | 483 | r = core->read(core, WL1273_CHANL_SET, &f); |
87d1a50c MA |
484 | if (r) |
485 | return r; | |
486 | ||
487 | freq = f * 10; | |
488 | } | |
489 | ||
490 | return freq; | |
491 | } | |
492 | ||
493 | /** | |
494 | * wl1273_fm_upload_firmware_patch() - Upload the firmware. | |
495 | * @radio: A pointer to the device struct. | |
496 | * | |
497 | * The firmware file consists of arrays of bytes where the first byte | |
498 | * gives the array length. The first byte in the file gives the | |
499 | * number of these arrays. | |
500 | */ | |
501 | static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio) | |
502 | { | |
503 | struct wl1273_core *core = radio->core; | |
504 | unsigned int packet_num; | |
505 | const struct firmware *fw_p; | |
506 | const char *fw_name = "radio-wl1273-fw.bin"; | |
507 | struct device *dev = radio->dev; | |
508 | __u8 *ptr; | |
fce50ac8 | 509 | int r; |
87d1a50c MA |
510 | |
511 | dev_dbg(dev, "%s:\n", __func__); | |
512 | ||
513 | /* | |
514 | * Uploading the firmware patch is not always necessary, | |
515 | * so we only print an info message. | |
516 | */ | |
517 | if (request_firmware(&fw_p, fw_name, dev)) { | |
518 | dev_info(dev, "%s - %s not found\n", __func__, fw_name); | |
519 | ||
520 | return 0; | |
521 | } | |
522 | ||
523 | ptr = (__u8 *) fw_p->data; | |
524 | packet_num = ptr[0]; | |
525 | dev_dbg(dev, "%s: packets: %d\n", __func__, packet_num); | |
526 | ||
527 | r = wl1273_fm_write_fw(core, ptr + 1, packet_num); | |
528 | if (r) { | |
529 | dev_err(dev, "FW upload error: %d\n", r); | |
530 | goto out; | |
531 | } | |
532 | ||
533 | /* ignore possible error here */ | |
96a9cc68 | 534 | core->write(core, WL1273_RESET, 0); |
87d1a50c | 535 | |
87d1a50c MA |
536 | dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r); |
537 | out: | |
538 | release_firmware(fw_p); | |
539 | return r; | |
540 | } | |
541 | ||
542 | static int wl1273_fm_stop(struct wl1273_device *radio) | |
543 | { | |
544 | struct wl1273_core *core = radio->core; | |
545 | ||
546 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 547 | int r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
548 | WL1273_POWER_SET_OFF); |
549 | if (r) | |
550 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", | |
551 | __func__, r); | |
552 | } else if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
553 | int r = core->write(core, WL1273_PUPD_SET, |
554 | WL1273_PUPD_SET_OFF); | |
87d1a50c MA |
555 | if (r) |
556 | dev_err(radio->dev, | |
557 | "%s: PUPD_SET fails: %d\n", __func__, r); | |
558 | } | |
559 | ||
560 | if (core->pdata->disable) { | |
561 | core->pdata->disable(); | |
562 | dev_dbg(radio->dev, "Back to reset\n"); | |
563 | } | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | static int wl1273_fm_start(struct wl1273_device *radio, int new_mode) | |
569 | { | |
570 | struct wl1273_core *core = radio->core; | |
571 | struct wl1273_fm_platform_data *pdata = core->pdata; | |
572 | struct device *dev = radio->dev; | |
573 | int r = -EINVAL; | |
574 | ||
575 | if (pdata->enable && core->mode == WL1273_MODE_OFF) { | |
576 | dev_dbg(radio->dev, "Out of reset\n"); | |
577 | ||
578 | pdata->enable(); | |
579 | msleep(250); | |
580 | } | |
581 | ||
582 | if (new_mode == WL1273_MODE_RX) { | |
583 | u16 val = WL1273_POWER_SET_FM; | |
584 | ||
585 | if (radio->rds_on) | |
586 | val |= WL1273_POWER_SET_RDS; | |
587 | ||
588 | /* If this fails try again */ | |
96a9cc68 | 589 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
590 | if (r) { |
591 | msleep(100); | |
592 | ||
96a9cc68 | 593 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
594 | if (r) { |
595 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
596 | goto fail; | |
597 | } | |
598 | } | |
599 | ||
600 | /* rds buffer configuration */ | |
601 | radio->wr_index = 0; | |
602 | radio->rd_index = 0; | |
603 | ||
604 | } else if (new_mode == WL1273_MODE_TX) { | |
605 | /* If this fails try again once */ | |
96a9cc68 | 606 | r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON); |
87d1a50c MA |
607 | if (r) { |
608 | msleep(100); | |
96a9cc68 | 609 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
610 | WL1273_PUPD_SET_ON); |
611 | if (r) { | |
612 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
613 | goto fail; | |
614 | } | |
615 | } | |
616 | ||
617 | if (radio->rds_on) | |
96a9cc68 | 618 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c | 619 | else |
96a9cc68 | 620 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c MA |
621 | } else { |
622 | dev_warn(dev, "%s: Illegal mode.\n", __func__); | |
623 | } | |
624 | ||
625 | if (core->mode == WL1273_MODE_OFF) { | |
626 | r = wl1273_fm_upload_firmware_patch(radio); | |
627 | if (r) | |
628 | dev_warn(dev, "Firmware upload failed.\n"); | |
629 | ||
630 | /* | |
631 | * Sometimes the chip is in a wrong power state at this point. | |
632 | * So we set the power once again. | |
633 | */ | |
634 | if (new_mode == WL1273_MODE_RX) { | |
635 | u16 val = WL1273_POWER_SET_FM; | |
636 | ||
637 | if (radio->rds_on) | |
638 | val |= WL1273_POWER_SET_RDS; | |
639 | ||
96a9cc68 | 640 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
641 | if (r) { |
642 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
643 | goto fail; | |
644 | } | |
645 | } else if (new_mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
646 | r = core->write(core, WL1273_PUPD_SET, |
647 | WL1273_PUPD_SET_ON); | |
87d1a50c MA |
648 | if (r) { |
649 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
650 | goto fail; | |
651 | } | |
652 | } | |
653 | } | |
654 | ||
655 | return 0; | |
656 | fail: | |
657 | if (pdata->disable) | |
658 | pdata->disable(); | |
659 | ||
660 | dev_dbg(dev, "%s: return: %d\n", __func__, r); | |
661 | return r; | |
662 | } | |
663 | ||
664 | static int wl1273_fm_suspend(struct wl1273_device *radio) | |
665 | { | |
666 | struct wl1273_core *core = radio->core; | |
667 | int r = 0; | |
668 | ||
669 | /* Cannot go from OFF to SUSPENDED */ | |
670 | if (core->mode == WL1273_MODE_RX) | |
96a9cc68 | 671 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
672 | WL1273_POWER_SET_RETENTION); |
673 | else if (core->mode == WL1273_MODE_TX) | |
96a9cc68 | 674 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
675 | WL1273_PUPD_SET_RETENTION); |
676 | else | |
677 | r = -EINVAL; | |
678 | ||
679 | if (r) { | |
680 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", __func__, r); | |
681 | goto out; | |
682 | } | |
683 | ||
684 | out: | |
685 | return r; | |
686 | } | |
687 | ||
688 | static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode) | |
689 | { | |
690 | struct wl1273_core *core = radio->core; | |
691 | struct device *dev = radio->dev; | |
692 | int old_mode; | |
693 | int r; | |
694 | ||
695 | dev_dbg(dev, "%s\n", __func__); | |
696 | dev_dbg(dev, "Forbidden modes: 0x%02x\n", radio->forbidden); | |
697 | ||
698 | old_mode = core->mode; | |
699 | if (mode & radio->forbidden) { | |
700 | r = -EPERM; | |
701 | goto out; | |
702 | } | |
703 | ||
704 | switch (mode) { | |
705 | case WL1273_MODE_RX: | |
706 | case WL1273_MODE_TX: | |
707 | r = wl1273_fm_start(radio, mode); | |
708 | if (r) { | |
709 | dev_err(dev, "%s: Cannot start.\n", __func__); | |
710 | wl1273_fm_stop(radio); | |
711 | goto out; | |
712 | } | |
713 | ||
714 | core->mode = mode; | |
96a9cc68 | 715 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
716 | if (r) { |
717 | dev_err(dev, "INT_MASK_SET fails.\n"); | |
718 | goto out; | |
719 | } | |
720 | ||
721 | /* remember previous settings */ | |
722 | if (mode == WL1273_MODE_RX) { | |
723 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
724 | if (r) { | |
725 | dev_err(dev, "set freq fails: %d.\n", r); | |
726 | goto out; | |
727 | } | |
728 | ||
729 | r = core->set_volume(core, core->volume); | |
730 | if (r) { | |
731 | dev_err(dev, "set volume fails: %d.\n", r); | |
732 | goto out; | |
733 | } | |
734 | ||
735 | dev_dbg(dev, "%s: Set vol: %d.\n", __func__, | |
736 | core->volume); | |
737 | } else { | |
738 | r = wl1273_fm_set_tx_freq(radio, radio->tx_frequency); | |
739 | if (r) { | |
740 | dev_err(dev, "set freq fails: %d.\n", r); | |
741 | goto out; | |
742 | } | |
743 | } | |
744 | ||
745 | dev_dbg(radio->dev, "%s: Set audio mode.\n", __func__); | |
746 | ||
747 | r = core->set_audio(core, core->audio_mode); | |
748 | if (r) | |
749 | dev_err(dev, "Cannot set audio mode.\n"); | |
750 | break; | |
751 | ||
752 | case WL1273_MODE_OFF: | |
753 | r = wl1273_fm_stop(radio); | |
754 | if (r) | |
755 | dev_err(dev, "%s: Off fails: %d\n", __func__, r); | |
756 | else | |
757 | core->mode = WL1273_MODE_OFF; | |
758 | ||
759 | break; | |
760 | ||
761 | case WL1273_MODE_SUSPENDED: | |
762 | r = wl1273_fm_suspend(radio); | |
763 | if (r) | |
764 | dev_err(dev, "%s: Suspend fails: %d\n", __func__, r); | |
765 | else | |
766 | core->mode = WL1273_MODE_SUSPENDED; | |
767 | ||
768 | break; | |
769 | ||
770 | default: | |
771 | dev_err(dev, "%s: Unknown mode: %d\n", __func__, mode); | |
772 | r = -EINVAL; | |
773 | break; | |
774 | } | |
775 | out: | |
776 | if (r) | |
777 | core->mode = old_mode; | |
778 | ||
779 | return r; | |
780 | } | |
781 | ||
782 | static int wl1273_fm_set_seek(struct wl1273_device *radio, | |
783 | unsigned int wrap_around, | |
784 | unsigned int seek_upward, | |
785 | int level) | |
786 | { | |
787 | struct wl1273_core *core = radio->core; | |
788 | int r = 0; | |
789 | unsigned int dir = (seek_upward == 0) ? 0 : 1; | |
790 | unsigned int f; | |
791 | ||
792 | f = radio->rx_frequency; | |
793 | dev_dbg(radio->dev, "rx_frequency: %d\n", f); | |
794 | ||
795 | if (dir && f + radio->spacing <= radio->rangehigh) | |
796 | r = wl1273_fm_set_rx_freq(radio, f + radio->spacing); | |
797 | else if (dir && wrap_around) | |
798 | r = wl1273_fm_set_rx_freq(radio, radio->rangelow); | |
799 | else if (f - radio->spacing >= radio->rangelow) | |
800 | r = wl1273_fm_set_rx_freq(radio, f - radio->spacing); | |
801 | else if (wrap_around) | |
802 | r = wl1273_fm_set_rx_freq(radio, radio->rangehigh); | |
803 | ||
804 | if (r) | |
805 | goto out; | |
806 | ||
807 | if (level < SCHAR_MIN || level > SCHAR_MAX) | |
808 | return -EINVAL; | |
809 | ||
16735d02 | 810 | reinit_completion(&radio->busy); |
87d1a50c MA |
811 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); |
812 | ||
96a9cc68 | 813 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
814 | if (r) |
815 | goto out; | |
816 | ||
817 | dev_dbg(radio->dev, "%s\n", __func__); | |
818 | ||
96a9cc68 | 819 | r = core->write(core, WL1273_SEARCH_LVL_SET, level); |
87d1a50c MA |
820 | if (r) |
821 | goto out; | |
822 | ||
96a9cc68 | 823 | r = core->write(core, WL1273_SEARCH_DIR_SET, dir); |
87d1a50c MA |
824 | if (r) |
825 | goto out; | |
826 | ||
96a9cc68 | 827 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
828 | if (r) |
829 | goto out; | |
830 | ||
c973f76e | 831 | /* wait for the FR IRQ */ |
87d1a50c | 832 | wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); |
c973f76e NMG |
833 | if (!(radio->irq_received & WL1273_BL_EVENT)) { |
834 | r = -ETIMEDOUT; | |
87d1a50c | 835 | goto out; |
c973f76e | 836 | } |
87d1a50c MA |
837 | |
838 | radio->irq_received &= ~WL1273_BL_EVENT; | |
839 | ||
840 | if (!wrap_around) | |
841 | goto out; | |
842 | ||
843 | /* Wrap around */ | |
844 | dev_dbg(radio->dev, "Wrap around in HW seek.\n"); | |
845 | ||
846 | if (seek_upward) | |
847 | f = radio->rangelow; | |
848 | else | |
849 | f = radio->rangehigh; | |
850 | ||
851 | r = wl1273_fm_set_rx_freq(radio, f); | |
852 | if (r) | |
853 | goto out; | |
854 | ||
16735d02 | 855 | reinit_completion(&radio->busy); |
87d1a50c MA |
856 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); |
857 | ||
96a9cc68 | 858 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
859 | if (r) |
860 | goto out; | |
861 | ||
c973f76e NMG |
862 | /* wait for the FR IRQ */ |
863 | if (!wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000))) | |
864 | r = -ETIMEDOUT; | |
87d1a50c MA |
865 | out: |
866 | dev_dbg(radio->dev, "%s: Err: %d\n", __func__, r); | |
867 | return r; | |
868 | } | |
869 | ||
870 | /** | |
871 | * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value. | |
872 | * @radio: A pointer to the device struct. | |
873 | */ | |
874 | static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio) | |
875 | { | |
876 | struct wl1273_core *core = radio->core; | |
877 | struct device *dev = radio->dev; | |
878 | u16 val; | |
879 | int r; | |
880 | ||
881 | if (core->mode == WL1273_MODE_OFF || | |
882 | core->mode == WL1273_MODE_SUSPENDED) | |
883 | return -EPERM; | |
884 | ||
96a9cc68 | 885 | r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val); |
87d1a50c MA |
886 | if (r) { |
887 | dev_err(dev, "%s: read error: %d\n", __func__, r); | |
888 | goto out; | |
889 | } | |
890 | ||
891 | out: | |
892 | return val; | |
893 | } | |
894 | ||
895 | /** | |
896 | * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value. | |
897 | * @radio: A pointer to the device struct. | |
898 | * @preemphasis: The new pre-amphasis value. | |
899 | * | |
900 | * Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED, | |
901 | * V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS. | |
902 | */ | |
903 | static int wl1273_fm_set_preemphasis(struct wl1273_device *radio, | |
904 | unsigned int preemphasis) | |
905 | { | |
906 | struct wl1273_core *core = radio->core; | |
907 | int r; | |
908 | u16 em; | |
909 | ||
910 | if (core->mode == WL1273_MODE_OFF || | |
911 | core->mode == WL1273_MODE_SUSPENDED) | |
912 | return -EPERM; | |
913 | ||
914 | mutex_lock(&core->lock); | |
915 | ||
916 | switch (preemphasis) { | |
917 | case V4L2_PREEMPHASIS_DISABLED: | |
918 | em = 1; | |
919 | break; | |
920 | case V4L2_PREEMPHASIS_50_uS: | |
921 | em = 0; | |
922 | break; | |
923 | case V4L2_PREEMPHASIS_75_uS: | |
924 | em = 2; | |
925 | break; | |
926 | default: | |
927 | r = -EINVAL; | |
928 | goto out; | |
929 | } | |
930 | ||
96a9cc68 | 931 | r = core->write(core, WL1273_PREMPH_SET, em); |
87d1a50c MA |
932 | if (r) |
933 | goto out; | |
934 | ||
935 | radio->preemphasis = preemphasis; | |
936 | ||
937 | out: | |
938 | mutex_unlock(&core->lock); | |
939 | return r; | |
940 | } | |
941 | ||
942 | static int wl1273_fm_rds_on(struct wl1273_device *radio) | |
943 | { | |
944 | struct wl1273_core *core = radio->core; | |
945 | int r; | |
946 | ||
947 | dev_dbg(radio->dev, "%s\n", __func__); | |
948 | if (radio->rds_on) | |
949 | return 0; | |
950 | ||
96a9cc68 | 951 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
952 | WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS); |
953 | if (r) | |
954 | goto out; | |
955 | ||
956 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
957 | if (r) | |
958 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
959 | out: | |
960 | return r; | |
961 | } | |
962 | ||
963 | static int wl1273_fm_rds_off(struct wl1273_device *radio) | |
964 | { | |
965 | struct wl1273_core *core = radio->core; | |
966 | int r; | |
967 | ||
968 | if (!radio->rds_on) | |
969 | return 0; | |
970 | ||
971 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
972 | ||
96a9cc68 | 973 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
974 | if (r) |
975 | goto out; | |
976 | ||
87d1a50c MA |
977 | /* Service pending read */ |
978 | wake_up_interruptible(&radio->read_queue); | |
979 | ||
980 | dev_dbg(radio->dev, "%s\n", __func__); | |
981 | ||
96a9cc68 | 982 | r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM); |
87d1a50c MA |
983 | if (r) |
984 | goto out; | |
985 | ||
986 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
987 | if (r) | |
988 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
989 | out: | |
990 | dev_dbg(radio->dev, "%s: exiting...\n", __func__); | |
991 | ||
992 | return r; | |
993 | } | |
994 | ||
995 | static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode) | |
996 | { | |
997 | int r = 0; | |
998 | struct wl1273_core *core = radio->core; | |
999 | ||
1000 | if (core->mode == WL1273_MODE_OFF || | |
1001 | core->mode == WL1273_MODE_SUSPENDED) | |
1002 | return -EPERM; | |
1003 | ||
1004 | if (new_mode == WL1273_RDS_RESET) { | |
96a9cc68 | 1005 | r = core->write(core, WL1273_RDS_CNTRL_SET, 1); |
87d1a50c MA |
1006 | return r; |
1007 | } | |
1008 | ||
1009 | if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) { | |
96a9cc68 | 1010 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c | 1011 | } else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) { |
96a9cc68 | 1012 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c MA |
1013 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) { |
1014 | r = wl1273_fm_rds_off(radio); | |
1015 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) { | |
1016 | r = wl1273_fm_rds_on(radio); | |
1017 | } else { | |
1018 | dev_err(radio->dev, "%s: Unknown mode: %d\n", | |
1019 | __func__, new_mode); | |
1020 | r = -EINVAL; | |
1021 | } | |
1022 | ||
1023 | if (!r) | |
1024 | radio->rds_on = (new_mode == WL1273_RDS_ON) ? true : false; | |
1025 | ||
1026 | return r; | |
1027 | } | |
1028 | ||
1029 | static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf, | |
1030 | size_t count, loff_t *ppos) | |
1031 | { | |
1032 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
96a9cc68 | 1033 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1034 | u16 val; |
1035 | int r; | |
1036 | ||
1037 | dev_dbg(radio->dev, "%s\n", __func__); | |
1038 | ||
96a9cc68 | 1039 | if (core->mode != WL1273_MODE_TX) |
87d1a50c MA |
1040 | return count; |
1041 | ||
1042 | if (radio->rds_users == 0) { | |
1043 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
96a9cc68 | 1047 | if (mutex_lock_interruptible(&core->lock)) |
87d1a50c MA |
1048 | return -EINTR; |
1049 | /* | |
1050 | * Multiple processes can open the device, but only | |
1051 | * one gets to write to it. | |
1052 | */ | |
1053 | if (radio->owner && radio->owner != file) { | |
1054 | r = -EBUSY; | |
1055 | goto out; | |
1056 | } | |
1057 | radio->owner = file; | |
1058 | ||
1059 | /* Manual Mode */ | |
1060 | if (count > 255) | |
1061 | val = 255; | |
1062 | else | |
1063 | val = count; | |
1064 | ||
96a9cc68 | 1065 | core->write(core, WL1273_RDS_CONFIG_DATA_SET, val); |
87d1a50c MA |
1066 | |
1067 | if (copy_from_user(radio->write_buf + 1, buf, val)) { | |
1068 | r = -EFAULT; | |
1069 | goto out; | |
1070 | } | |
1071 | ||
1072 | dev_dbg(radio->dev, "Count: %d\n", val); | |
1073 | dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf); | |
1074 | ||
1075 | radio->write_buf[0] = WL1273_RDS_DATA_SET; | |
96a9cc68 | 1076 | core->write_data(core, radio->write_buf, val + 1); |
87d1a50c MA |
1077 | |
1078 | r = val; | |
1079 | out: | |
96a9cc68 | 1080 | mutex_unlock(&core->lock); |
87d1a50c MA |
1081 | |
1082 | return r; | |
1083 | } | |
1084 | ||
1085 | static unsigned int wl1273_fm_fops_poll(struct file *file, | |
1086 | struct poll_table_struct *pts) | |
1087 | { | |
1088 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1089 | struct wl1273_core *core = radio->core; | |
1090 | ||
1091 | if (radio->owner && radio->owner != file) | |
1092 | return -EBUSY; | |
1093 | ||
1094 | radio->owner = file; | |
1095 | ||
1096 | if (core->mode == WL1273_MODE_RX) { | |
1097 | poll_wait(file, &radio->read_queue, pts); | |
1098 | ||
1099 | if (radio->rd_index != radio->wr_index) | |
1100 | return POLLIN | POLLRDNORM; | |
1101 | ||
1102 | } else if (core->mode == WL1273_MODE_TX) { | |
1103 | return POLLOUT | POLLWRNORM; | |
1104 | } | |
1105 | ||
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | static int wl1273_fm_fops_open(struct file *file) | |
1110 | { | |
1111 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1112 | struct wl1273_core *core = radio->core; | |
1113 | int r = 0; | |
1114 | ||
1115 | dev_dbg(radio->dev, "%s\n", __func__); | |
1116 | ||
1117 | if (core->mode == WL1273_MODE_RX && radio->rds_on && | |
1118 | !radio->rds_users) { | |
1119 | dev_dbg(radio->dev, "%s: Mode: %d\n", __func__, core->mode); | |
1120 | ||
1121 | if (mutex_lock_interruptible(&core->lock)) | |
1122 | return -EINTR; | |
1123 | ||
1124 | radio->irq_flags |= WL1273_RDS_EVENT; | |
1125 | ||
96a9cc68 MA |
1126 | r = core->write(core, WL1273_INT_MASK_SET, |
1127 | radio->irq_flags); | |
87d1a50c MA |
1128 | if (r) { |
1129 | mutex_unlock(&core->lock); | |
1130 | goto out; | |
1131 | } | |
1132 | ||
1133 | radio->rds_users++; | |
1134 | ||
1135 | mutex_unlock(&core->lock); | |
1136 | } | |
1137 | out: | |
1138 | return r; | |
1139 | } | |
1140 | ||
1141 | static int wl1273_fm_fops_release(struct file *file) | |
1142 | { | |
1143 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1144 | struct wl1273_core *core = radio->core; | |
1145 | int r = 0; | |
1146 | ||
1147 | dev_dbg(radio->dev, "%s\n", __func__); | |
1148 | ||
1149 | if (radio->rds_users > 0) { | |
1150 | radio->rds_users--; | |
1151 | if (radio->rds_users == 0) { | |
1152 | if (mutex_lock_interruptible(&core->lock)) | |
1153 | return -EINTR; | |
1154 | ||
1155 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
1156 | ||
1157 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
1158 | r = core->write(core, |
1159 | WL1273_INT_MASK_SET, | |
1160 | radio->irq_flags); | |
87d1a50c MA |
1161 | if (r) { |
1162 | mutex_unlock(&core->lock); | |
1163 | goto out; | |
1164 | } | |
1165 | } | |
1166 | mutex_unlock(&core->lock); | |
1167 | } | |
1168 | } | |
1169 | ||
1170 | if (file == radio->owner) | |
1171 | radio->owner = NULL; | |
1172 | out: | |
1173 | return r; | |
1174 | } | |
1175 | ||
1176 | static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf, | |
1177 | size_t count, loff_t *ppos) | |
1178 | { | |
1179 | int r = 0; | |
1180 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1181 | struct wl1273_core *core = radio->core; | |
1182 | unsigned int block_count = 0; | |
1183 | u16 val; | |
1184 | ||
1185 | dev_dbg(radio->dev, "%s\n", __func__); | |
1186 | ||
96a9cc68 | 1187 | if (core->mode != WL1273_MODE_RX) |
87d1a50c MA |
1188 | return 0; |
1189 | ||
1190 | if (radio->rds_users == 0) { | |
1191 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | if (mutex_lock_interruptible(&core->lock)) | |
1196 | return -EINTR; | |
1197 | ||
1198 | /* | |
1199 | * Multiple processes can open the device, but only | |
1200 | * one at a time gets read access. | |
1201 | */ | |
1202 | if (radio->owner && radio->owner != file) { | |
1203 | r = -EBUSY; | |
1204 | goto out; | |
1205 | } | |
1206 | radio->owner = file; | |
1207 | ||
96a9cc68 | 1208 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1209 | if (r) { |
1210 | dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__); | |
1211 | goto out; | |
1212 | } else if (val == 0) { | |
1213 | dev_info(radio->dev, "RDS_SYNC: Not synchronized\n"); | |
1214 | r = -ENODATA; | |
1215 | goto out; | |
1216 | } | |
1217 | ||
1218 | /* block if no new data available */ | |
1219 | while (radio->wr_index == radio->rd_index) { | |
1220 | if (file->f_flags & O_NONBLOCK) { | |
1221 | r = -EWOULDBLOCK; | |
1222 | goto out; | |
1223 | } | |
1224 | ||
1225 | dev_dbg(radio->dev, "%s: Wait for RDS data.\n", __func__); | |
1226 | if (wait_event_interruptible(radio->read_queue, | |
1227 | radio->wr_index != | |
1228 | radio->rd_index) < 0) { | |
1229 | r = -EINTR; | |
1230 | goto out; | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | /* calculate block count from byte count */ | |
1235 | count /= RDS_BLOCK_SIZE; | |
1236 | ||
1237 | /* copy RDS blocks from the internal buffer and to user buffer */ | |
1238 | while (block_count < count) { | |
1239 | if (radio->rd_index == radio->wr_index) | |
1240 | break; | |
1241 | ||
1242 | /* always transfer complete RDS blocks */ | |
1243 | if (copy_to_user(buf, &radio->buffer[radio->rd_index], | |
1244 | RDS_BLOCK_SIZE)) | |
1245 | break; | |
1246 | ||
1247 | /* increment and wrap the read pointer */ | |
1248 | radio->rd_index += RDS_BLOCK_SIZE; | |
1249 | if (radio->rd_index >= radio->buf_size) | |
1250 | radio->rd_index = 0; | |
1251 | ||
1252 | /* increment counters */ | |
1253 | block_count++; | |
1254 | buf += RDS_BLOCK_SIZE; | |
1255 | r += RDS_BLOCK_SIZE; | |
1256 | } | |
1257 | ||
1258 | out: | |
1259 | dev_dbg(radio->dev, "%s: exit\n", __func__); | |
1260 | mutex_unlock(&core->lock); | |
1261 | ||
1262 | return r; | |
1263 | } | |
1264 | ||
1265 | static const struct v4l2_file_operations wl1273_fops = { | |
1266 | .owner = THIS_MODULE, | |
1267 | .read = wl1273_fm_fops_read, | |
1268 | .write = wl1273_fm_fops_write, | |
1269 | .poll = wl1273_fm_fops_poll, | |
34b8fc8e | 1270 | .unlocked_ioctl = video_ioctl2, |
87d1a50c MA |
1271 | .open = wl1273_fm_fops_open, |
1272 | .release = wl1273_fm_fops_release, | |
1273 | }; | |
1274 | ||
1275 | static int wl1273_fm_vidioc_querycap(struct file *file, void *priv, | |
1276 | struct v4l2_capability *capability) | |
1277 | { | |
1278 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1279 | ||
1280 | dev_dbg(radio->dev, "%s\n", __func__); | |
1281 | ||
1282 | strlcpy(capability->driver, WL1273_FM_DRIVER_NAME, | |
1283 | sizeof(capability->driver)); | |
1284 | strlcpy(capability->card, "Texas Instruments Wl1273 FM Radio", | |
1285 | sizeof(capability->card)); | |
1286 | strlcpy(capability->bus_info, radio->bus_type, | |
1287 | sizeof(capability->bus_info)); | |
1288 | ||
7027c448 | 1289 | capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | |
87d1a50c MA |
1290 | V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_AUDIO | |
1291 | V4L2_CAP_RDS_CAPTURE | V4L2_CAP_MODULATOR | | |
1292 | V4L2_CAP_RDS_OUTPUT; | |
7027c448 HV |
1293 | capability->capabilities = capability->device_caps | |
1294 | V4L2_CAP_DEVICE_CAPS; | |
87d1a50c MA |
1295 | |
1296 | return 0; | |
1297 | } | |
1298 | ||
1299 | static int wl1273_fm_vidioc_g_input(struct file *file, void *priv, | |
1300 | unsigned int *i) | |
1301 | { | |
1302 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1303 | ||
1304 | dev_dbg(radio->dev, "%s\n", __func__); | |
1305 | ||
1306 | *i = 0; | |
1307 | ||
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | static int wl1273_fm_vidioc_s_input(struct file *file, void *priv, | |
1312 | unsigned int i) | |
1313 | { | |
1314 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1315 | ||
1316 | dev_dbg(radio->dev, "%s\n", __func__); | |
1317 | ||
1318 | if (i != 0) | |
1319 | return -EINVAL; | |
1320 | ||
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | /** | |
1325 | * wl1273_fm_set_tx_power() - Set the transmission power value. | |
1326 | * @core: A pointer to the device struct. | |
1327 | * @power: The new power value. | |
1328 | */ | |
1329 | static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) | |
1330 | { | |
96a9cc68 | 1331 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1332 | int r; |
1333 | ||
96a9cc68 MA |
1334 | if (core->mode == WL1273_MODE_OFF || |
1335 | core->mode == WL1273_MODE_SUSPENDED) | |
87d1a50c MA |
1336 | return -EPERM; |
1337 | ||
96a9cc68 | 1338 | mutex_lock(&core->lock); |
87d1a50c MA |
1339 | |
1340 | /* Convert the dBuV value to chip presentation */ | |
96a9cc68 | 1341 | r = core->write(core, WL1273_POWER_LEV_SET, 122 - power); |
87d1a50c MA |
1342 | if (r) |
1343 | goto out; | |
1344 | ||
1345 | radio->tx_power = power; | |
1346 | ||
1347 | out: | |
96a9cc68 | 1348 | mutex_unlock(&core->lock); |
87d1a50c MA |
1349 | return r; |
1350 | } | |
1351 | ||
1352 | #define WL1273_SPACING_50kHz 1 | |
1353 | #define WL1273_SPACING_100kHz 2 | |
1354 | #define WL1273_SPACING_200kHz 4 | |
1355 | ||
1356 | static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio, | |
1357 | unsigned int spacing) | |
1358 | { | |
96a9cc68 | 1359 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1360 | int r; |
1361 | ||
1362 | if (spacing == 0) { | |
96a9cc68 MA |
1363 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1364 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1365 | radio->spacing = 100; |
1366 | } else if (spacing - 50000 < 25000) { | |
96a9cc68 MA |
1367 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1368 | WL1273_SPACING_50kHz); | |
87d1a50c MA |
1369 | radio->spacing = 50; |
1370 | } else if (spacing - 100000 < 50000) { | |
96a9cc68 MA |
1371 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1372 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1373 | radio->spacing = 100; |
1374 | } else { | |
96a9cc68 MA |
1375 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1376 | WL1273_SPACING_200kHz); | |
87d1a50c MA |
1377 | radio->spacing = 200; |
1378 | } | |
1379 | ||
1380 | return r; | |
1381 | } | |
1382 | ||
1383 | static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl) | |
1384 | { | |
1385 | struct wl1273_device *radio = ctrl->priv; | |
1386 | struct wl1273_core *core = radio->core; | |
1387 | ||
1388 | dev_dbg(radio->dev, "%s\n", __func__); | |
1389 | ||
1390 | if (mutex_lock_interruptible(&core->lock)) | |
1391 | return -EINTR; | |
1392 | ||
1393 | switch (ctrl->id) { | |
1394 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
ddac5c10 | 1395 | ctrl->val = wl1273_fm_get_tx_ctune(radio); |
87d1a50c MA |
1396 | break; |
1397 | ||
1398 | default: | |
1399 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1400 | __func__, ctrl->id); | |
1401 | break; | |
1402 | } | |
1403 | ||
1404 | mutex_unlock(&core->lock); | |
1405 | ||
1406 | return 0; | |
1407 | } | |
1408 | ||
1409 | #define WL1273_MUTE_SOFT_ENABLE (1 << 0) | |
1410 | #define WL1273_MUTE_AC (1 << 1) | |
1411 | #define WL1273_MUTE_HARD_LEFT (1 << 2) | |
1412 | #define WL1273_MUTE_HARD_RIGHT (1 << 3) | |
1413 | #define WL1273_MUTE_SOFT_FORCE (1 << 4) | |
1414 | ||
1415 | static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl) | |
1416 | { | |
1417 | return container_of(ctrl->handler, struct wl1273_device, ctrl_handler); | |
1418 | } | |
1419 | ||
1420 | static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl) | |
1421 | { | |
1422 | struct wl1273_device *radio = to_radio(ctrl); | |
1423 | struct wl1273_core *core = radio->core; | |
1424 | int r = 0; | |
1425 | ||
1426 | dev_dbg(radio->dev, "%s\n", __func__); | |
1427 | ||
1428 | switch (ctrl->id) { | |
1429 | case V4L2_CID_AUDIO_MUTE: | |
1430 | if (mutex_lock_interruptible(&core->lock)) | |
1431 | return -EINTR; | |
1432 | ||
1433 | if (core->mode == WL1273_MODE_RX && ctrl->val) | |
96a9cc68 MA |
1434 | r = core->write(core, |
1435 | WL1273_MUTE_STATUS_SET, | |
1436 | WL1273_MUTE_HARD_LEFT | | |
1437 | WL1273_MUTE_HARD_RIGHT); | |
87d1a50c | 1438 | else if (core->mode == WL1273_MODE_RX) |
96a9cc68 MA |
1439 | r = core->write(core, |
1440 | WL1273_MUTE_STATUS_SET, 0x0); | |
87d1a50c | 1441 | else if (core->mode == WL1273_MODE_TX && ctrl->val) |
96a9cc68 | 1442 | r = core->write(core, WL1273_MUTE, 1); |
87d1a50c | 1443 | else if (core->mode == WL1273_MODE_TX) |
96a9cc68 | 1444 | r = core->write(core, WL1273_MUTE, 0); |
87d1a50c MA |
1445 | |
1446 | mutex_unlock(&core->lock); | |
1447 | break; | |
1448 | ||
1449 | case V4L2_CID_AUDIO_VOLUME: | |
1450 | if (ctrl->val == 0) | |
1451 | r = wl1273_fm_set_mode(radio, WL1273_MODE_OFF); | |
1452 | else | |
1453 | r = core->set_volume(core, core->volume); | |
1454 | break; | |
1455 | ||
1456 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1457 | r = wl1273_fm_set_preemphasis(radio, ctrl->val); | |
1458 | break; | |
1459 | ||
1460 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1461 | r = wl1273_fm_set_tx_power(radio, ctrl->val); | |
1462 | break; | |
1463 | ||
1464 | default: | |
1465 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1466 | __func__, ctrl->id); | |
1467 | break; | |
1468 | } | |
1469 | ||
1470 | dev_dbg(radio->dev, "%s\n", __func__); | |
1471 | return r; | |
1472 | } | |
1473 | ||
1474 | static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv, | |
1475 | struct v4l2_audio *audio) | |
1476 | { | |
1477 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1478 | ||
1479 | dev_dbg(radio->dev, "%s\n", __func__); | |
1480 | ||
1481 | if (audio->index > 1) | |
1482 | return -EINVAL; | |
1483 | ||
1484 | strlcpy(audio->name, "Radio", sizeof(audio->name)); | |
1485 | audio->capability = V4L2_AUDCAP_STEREO; | |
1486 | ||
1487 | return 0; | |
1488 | } | |
1489 | ||
1490 | static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv, | |
0e8025b9 | 1491 | const struct v4l2_audio *audio) |
87d1a50c MA |
1492 | { |
1493 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1494 | ||
1495 | dev_dbg(radio->dev, "%s\n", __func__); | |
1496 | ||
1497 | if (audio->index != 0) | |
1498 | return -EINVAL; | |
1499 | ||
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | #define WL1273_RDS_NOT_SYNCHRONIZED 0 | |
1504 | #define WL1273_RDS_SYNCHRONIZED 1 | |
1505 | ||
1506 | static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, | |
1507 | struct v4l2_tuner *tuner) | |
1508 | { | |
1509 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1510 | struct wl1273_core *core = radio->core; | |
1511 | u16 val; | |
1512 | int r; | |
1513 | ||
1514 | dev_dbg(radio->dev, "%s\n", __func__); | |
1515 | ||
1516 | if (tuner->index > 0) | |
1517 | return -EINVAL; | |
1518 | ||
1519 | strlcpy(tuner->name, WL1273_FM_DRIVER_NAME, sizeof(tuner->name)); | |
1520 | tuner->type = V4L2_TUNER_RADIO; | |
1521 | ||
1522 | tuner->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1523 | tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1524 | ||
1525 | tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
54f6019b HV |
1526 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO | |
1527 | V4L2_TUNER_CAP_HWSEEK_BOUNDED | V4L2_TUNER_CAP_HWSEEK_WRAP; | |
87d1a50c MA |
1528 | |
1529 | if (radio->stereo) | |
1530 | tuner->audmode = V4L2_TUNER_MODE_STEREO; | |
1531 | else | |
1532 | tuner->audmode = V4L2_TUNER_MODE_MONO; | |
1533 | ||
1534 | if (core->mode != WL1273_MODE_RX) | |
1535 | return 0; | |
1536 | ||
1537 | if (mutex_lock_interruptible(&core->lock)) | |
1538 | return -EINTR; | |
1539 | ||
96a9cc68 | 1540 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1541 | if (r) |
1542 | goto out; | |
1543 | ||
1544 | if (val == 1) | |
1545 | tuner->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
1546 | else | |
1547 | tuner->rxsubchans = V4L2_TUNER_SUB_MONO; | |
1548 | ||
96a9cc68 | 1549 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1550 | if (r) |
1551 | goto out; | |
1552 | ||
1553 | tuner->signal = (s16) val; | |
1554 | dev_dbg(radio->dev, "Signal: %d\n", tuner->signal); | |
1555 | ||
1556 | tuner->afc = 0; | |
1557 | ||
96a9cc68 | 1558 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1559 | if (r) |
1560 | goto out; | |
1561 | ||
1562 | if (val == WL1273_RDS_SYNCHRONIZED) | |
1563 | tuner->rxsubchans |= V4L2_TUNER_SUB_RDS; | |
1564 | out: | |
1565 | mutex_unlock(&core->lock); | |
1566 | ||
1567 | return r; | |
1568 | } | |
1569 | ||
1570 | static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv, | |
2f73c7c5 | 1571 | const struct v4l2_tuner *tuner) |
87d1a50c MA |
1572 | { |
1573 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1574 | struct wl1273_core *core = radio->core; | |
1575 | int r = 0; | |
1576 | ||
1577 | dev_dbg(radio->dev, "%s\n", __func__); | |
1578 | dev_dbg(radio->dev, "tuner->index: %d\n", tuner->index); | |
1579 | dev_dbg(radio->dev, "tuner->name: %s\n", tuner->name); | |
1580 | dev_dbg(radio->dev, "tuner->capability: 0x%04x\n", tuner->capability); | |
1581 | dev_dbg(radio->dev, "tuner->rxsubchans: 0x%04x\n", tuner->rxsubchans); | |
1582 | dev_dbg(radio->dev, "tuner->rangelow: %d\n", tuner->rangelow); | |
1583 | dev_dbg(radio->dev, "tuner->rangehigh: %d\n", tuner->rangehigh); | |
1584 | ||
1585 | if (tuner->index > 0) | |
1586 | return -EINVAL; | |
1587 | ||
1588 | if (mutex_lock_interruptible(&core->lock)) | |
1589 | return -EINTR; | |
1590 | ||
1591 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1592 | if (r) | |
1593 | goto out; | |
1594 | ||
1595 | if (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) | |
1596 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1597 | else | |
1598 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1599 | ||
1600 | if (r) | |
1601 | dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r); | |
1602 | ||
1603 | if (tuner->audmode == V4L2_TUNER_MODE_MONO) { | |
96a9cc68 | 1604 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO); |
87d1a50c MA |
1605 | if (r < 0) { |
1606 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1607 | __func__, r); | |
1608 | goto out; | |
1609 | } | |
1610 | radio->stereo = false; | |
1611 | } else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) { | |
96a9cc68 | 1612 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO); |
87d1a50c MA |
1613 | if (r < 0) { |
1614 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1615 | __func__, r); | |
1616 | goto out; | |
1617 | } | |
1618 | radio->stereo = true; | |
1619 | } else { | |
1620 | dev_err(radio->dev, "%s: tuner->audmode: %d\n", | |
1621 | __func__, tuner->audmode); | |
1622 | r = -EINVAL; | |
1623 | goto out; | |
1624 | } | |
1625 | ||
1626 | out: | |
1627 | mutex_unlock(&core->lock); | |
1628 | ||
1629 | return r; | |
1630 | } | |
1631 | ||
1632 | static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv, | |
1633 | struct v4l2_frequency *freq) | |
1634 | { | |
1635 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1636 | struct wl1273_core *core = radio->core; | |
1637 | ||
1638 | dev_dbg(radio->dev, "%s\n", __func__); | |
1639 | ||
1640 | if (mutex_lock_interruptible(&core->lock)) | |
1641 | return -EINTR; | |
1642 | ||
1643 | freq->type = V4L2_TUNER_RADIO; | |
1644 | freq->frequency = WL1273_FREQ(wl1273_fm_get_freq(radio)); | |
1645 | ||
1646 | mutex_unlock(&core->lock); | |
1647 | ||
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv, | |
b530a447 | 1652 | const struct v4l2_frequency *freq) |
87d1a50c MA |
1653 | { |
1654 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1655 | struct wl1273_core *core = radio->core; | |
1656 | int r; | |
1657 | ||
1658 | dev_dbg(radio->dev, "%s: %d\n", __func__, freq->frequency); | |
1659 | ||
1660 | if (freq->type != V4L2_TUNER_RADIO) { | |
1661 | dev_dbg(radio->dev, | |
1662 | "freq->type != V4L2_TUNER_RADIO: %d\n", freq->type); | |
1663 | return -EINVAL; | |
1664 | } | |
1665 | ||
1666 | if (mutex_lock_interruptible(&core->lock)) | |
1667 | return -EINTR; | |
1668 | ||
1669 | if (core->mode == WL1273_MODE_RX) { | |
1670 | dev_dbg(radio->dev, "freq: %d\n", freq->frequency); | |
1671 | ||
1672 | r = wl1273_fm_set_rx_freq(radio, | |
1673 | WL1273_INV_FREQ(freq->frequency)); | |
1674 | if (r) | |
1675 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1676 | ": set frequency failed with %d\n", r); | |
1677 | } else { | |
1678 | r = wl1273_fm_set_tx_freq(radio, | |
1679 | WL1273_INV_FREQ(freq->frequency)); | |
1680 | if (r) | |
1681 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1682 | ": set frequency failed with %d\n", r); | |
1683 | } | |
1684 | ||
1685 | mutex_unlock(&core->lock); | |
1686 | ||
1687 | dev_dbg(radio->dev, "wl1273_vidioc_s_frequency: DONE\n"); | |
1688 | return r; | |
1689 | } | |
1690 | ||
1691 | #define WL1273_DEFAULT_SEEK_LEVEL 7 | |
1692 | ||
1693 | static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv, | |
ec6f4328 | 1694 | const struct v4l2_hw_freq_seek *seek) |
87d1a50c MA |
1695 | { |
1696 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1697 | struct wl1273_core *core = radio->core; | |
1698 | int r; | |
1699 | ||
1700 | dev_dbg(radio->dev, "%s\n", __func__); | |
1701 | ||
1702 | if (seek->tuner != 0 || seek->type != V4L2_TUNER_RADIO) | |
1703 | return -EINVAL; | |
1704 | ||
617ade61 HV |
1705 | if (file->f_flags & O_NONBLOCK) |
1706 | return -EWOULDBLOCK; | |
1707 | ||
87d1a50c MA |
1708 | if (mutex_lock_interruptible(&core->lock)) |
1709 | return -EINTR; | |
1710 | ||
1711 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1712 | if (r) | |
1713 | goto out; | |
1714 | ||
1715 | r = wl1273_fm_tx_set_spacing(radio, seek->spacing); | |
1716 | if (r) | |
1717 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1718 | ||
1719 | r = wl1273_fm_set_seek(radio, seek->wrap_around, seek->seek_upward, | |
1720 | WL1273_DEFAULT_SEEK_LEVEL); | |
1721 | if (r) | |
1722 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1723 | ||
1724 | out: | |
1725 | mutex_unlock(&core->lock); | |
1726 | return r; | |
1727 | } | |
1728 | ||
1729 | static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv, | |
3f70e1f5 | 1730 | const struct v4l2_modulator *modulator) |
87d1a50c MA |
1731 | { |
1732 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1733 | struct wl1273_core *core = radio->core; | |
1734 | int r = 0; | |
1735 | ||
1736 | dev_dbg(radio->dev, "%s\n", __func__); | |
1737 | ||
1738 | if (modulator->index > 0) | |
1739 | return -EINVAL; | |
1740 | ||
1741 | if (mutex_lock_interruptible(&core->lock)) | |
1742 | return -EINTR; | |
1743 | ||
1744 | r = wl1273_fm_set_mode(radio, WL1273_MODE_TX); | |
1745 | if (r) | |
1746 | goto out; | |
1747 | ||
1748 | if (modulator->txsubchans & V4L2_TUNER_SUB_RDS) | |
1749 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1750 | else | |
1751 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1752 | ||
1753 | if (modulator->txsubchans & V4L2_TUNER_SUB_MONO) | |
96a9cc68 | 1754 | r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO); |
87d1a50c | 1755 | else |
96a9cc68 MA |
1756 | r = core->write(core, WL1273_MONO_SET, |
1757 | WL1273_RX_STEREO); | |
87d1a50c MA |
1758 | if (r < 0) |
1759 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1760 | "MONO_SET fails: %d\n", r); | |
1761 | out: | |
1762 | mutex_unlock(&core->lock); | |
1763 | ||
1764 | return r; | |
1765 | } | |
1766 | ||
1767 | static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv, | |
1768 | struct v4l2_modulator *modulator) | |
1769 | { | |
1770 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1771 | struct wl1273_core *core = radio->core; | |
1772 | u16 val; | |
1773 | int r; | |
1774 | ||
1775 | dev_dbg(radio->dev, "%s\n", __func__); | |
1776 | ||
1777 | strlcpy(modulator->name, WL1273_FM_DRIVER_NAME, | |
1778 | sizeof(modulator->name)); | |
1779 | ||
1780 | modulator->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1781 | modulator->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1782 | ||
1783 | modulator->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
1784 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; | |
1785 | ||
1786 | if (core->mode != WL1273_MODE_TX) | |
1787 | return 0; | |
1788 | ||
1789 | if (mutex_lock_interruptible(&core->lock)) | |
1790 | return -EINTR; | |
1791 | ||
96a9cc68 | 1792 | r = core->read(core, WL1273_MONO_SET, &val); |
87d1a50c MA |
1793 | if (r) |
1794 | goto out; | |
1795 | ||
1796 | if (val == WL1273_TX_STEREO) | |
1797 | modulator->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1798 | else | |
1799 | modulator->txsubchans = V4L2_TUNER_SUB_MONO; | |
1800 | ||
1801 | if (radio->rds_on) | |
1802 | modulator->txsubchans |= V4L2_TUNER_SUB_RDS; | |
1803 | out: | |
1804 | mutex_unlock(&core->lock); | |
1805 | ||
1806 | return 0; | |
1807 | } | |
1808 | ||
1809 | static int wl1273_fm_vidioc_log_status(struct file *file, void *priv) | |
1810 | { | |
1811 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1812 | struct wl1273_core *core = radio->core; | |
1813 | struct device *dev = radio->dev; | |
1814 | u16 val; | |
1815 | int r; | |
1816 | ||
1817 | dev_info(dev, DRIVER_DESC); | |
1818 | ||
1819 | if (core->mode == WL1273_MODE_OFF) { | |
1820 | dev_info(dev, "Mode: Off\n"); | |
1821 | return 0; | |
1822 | } | |
1823 | ||
1824 | if (core->mode == WL1273_MODE_SUSPENDED) { | |
1825 | dev_info(dev, "Mode: Suspended\n"); | |
1826 | return 0; | |
1827 | } | |
1828 | ||
96a9cc68 | 1829 | r = core->read(core, WL1273_ASIC_ID_GET, &val); |
87d1a50c MA |
1830 | if (r) |
1831 | dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__); | |
1832 | else | |
1833 | dev_info(dev, "ASIC_ID: 0x%04x\n", val); | |
1834 | ||
96a9cc68 | 1835 | r = core->read(core, WL1273_ASIC_VER_GET, &val); |
87d1a50c MA |
1836 | if (r) |
1837 | dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__); | |
1838 | else | |
1839 | dev_info(dev, "ASIC Version: 0x%04x\n", val); | |
1840 | ||
96a9cc68 | 1841 | r = core->read(core, WL1273_FIRM_VER_GET, &val); |
87d1a50c MA |
1842 | if (r) |
1843 | dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__); | |
1844 | else | |
1845 | dev_info(dev, "FW version: %d(0x%04x)\n", val, val); | |
1846 | ||
96a9cc68 | 1847 | r = core->read(core, WL1273_BAND_SET, &val); |
87d1a50c MA |
1848 | if (r) |
1849 | dev_err(dev, "%s: Get BAND fails.\n", __func__); | |
1850 | else | |
1851 | dev_info(dev, "BAND: %d\n", val); | |
1852 | ||
1853 | if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 | 1854 | r = core->read(core, WL1273_PUPD_SET, &val); |
87d1a50c MA |
1855 | if (r) |
1856 | dev_err(dev, "%s: Get PUPD fails.\n", __func__); | |
1857 | else | |
1858 | dev_info(dev, "PUPD: 0x%04x\n", val); | |
1859 | ||
96a9cc68 | 1860 | r = core->read(core, WL1273_CHANL_SET, &val); |
87d1a50c MA |
1861 | if (r) |
1862 | dev_err(dev, "%s: Get CHANL fails.\n", __func__); | |
1863 | else | |
1864 | dev_info(dev, "Tx frequency: %dkHz\n", val*10); | |
1865 | } else if (core->mode == WL1273_MODE_RX) { | |
1866 | int bf = radio->rangelow; | |
1867 | ||
96a9cc68 | 1868 | r = core->read(core, WL1273_FREQ_SET, &val); |
87d1a50c MA |
1869 | if (r) |
1870 | dev_err(dev, "%s: Get FREQ fails.\n", __func__); | |
1871 | else | |
1872 | dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50); | |
1873 | ||
96a9cc68 | 1874 | r = core->read(core, WL1273_MOST_MODE_SET, &val); |
87d1a50c MA |
1875 | if (r) |
1876 | dev_err(dev, "%s: Get MOST_MODE fails.\n", | |
1877 | __func__); | |
1878 | else if (val == 0) | |
1879 | dev_info(dev, "MOST_MODE: Stereo according to blend\n"); | |
1880 | else if (val == 1) | |
1881 | dev_info(dev, "MOST_MODE: Force mono output\n"); | |
1882 | else | |
1883 | dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val); | |
1884 | ||
96a9cc68 | 1885 | r = core->read(core, WL1273_MOST_BLEND_SET, &val); |
87d1a50c MA |
1886 | if (r) |
1887 | dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__); | |
1888 | else if (val == 0) | |
1889 | dev_info(dev, | |
1890 | "MOST_BLEND: Switched blend & hysteresis.\n"); | |
1891 | else if (val == 1) | |
1892 | dev_info(dev, "MOST_BLEND: Soft blend.\n"); | |
1893 | else | |
1894 | dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val); | |
1895 | ||
96a9cc68 | 1896 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1897 | if (r) |
1898 | dev_err(dev, "%s: Get STEREO fails.\n", __func__); | |
1899 | else if (val == 0) | |
1900 | dev_info(dev, "STEREO: Not detected\n"); | |
1901 | else if (val == 1) | |
1902 | dev_info(dev, "STEREO: Detected\n"); | |
1903 | else | |
1904 | dev_info(dev, "STEREO: Unexpected value: %d\n", val); | |
1905 | ||
96a9cc68 | 1906 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1907 | if (r) |
1908 | dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__); | |
1909 | else | |
1910 | dev_info(dev, "RX signal strength: %d\n", (s16) val); | |
1911 | ||
96a9cc68 | 1912 | r = core->read(core, WL1273_POWER_SET, &val); |
87d1a50c MA |
1913 | if (r) |
1914 | dev_err(dev, "%s: Get POWER fails.\n", __func__); | |
1915 | else | |
1916 | dev_info(dev, "POWER: 0x%04x\n", val); | |
1917 | ||
96a9cc68 | 1918 | r = core->read(core, WL1273_INT_MASK_SET, &val); |
87d1a50c MA |
1919 | if (r) |
1920 | dev_err(dev, "%s: Get INT_MASK fails.\n", __func__); | |
1921 | else | |
1922 | dev_info(dev, "INT_MASK: 0x%04x\n", val); | |
1923 | ||
96a9cc68 | 1924 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1925 | if (r) |
1926 | dev_err(dev, "%s: Get RDS_SYNC fails.\n", | |
1927 | __func__); | |
1928 | else if (val == 0) | |
1929 | dev_info(dev, "RDS_SYNC: Not synchronized\n"); | |
1930 | ||
1931 | else if (val == 1) | |
1932 | dev_info(dev, "RDS_SYNC: Synchronized\n"); | |
1933 | else | |
1934 | dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val); | |
1935 | ||
96a9cc68 | 1936 | r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val); |
87d1a50c MA |
1937 | if (r) |
1938 | dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n", | |
1939 | __func__); | |
1940 | else | |
1941 | dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val); | |
1942 | ||
96a9cc68 | 1943 | r = core->read(core, WL1273_VOLUME_SET, &val); |
87d1a50c MA |
1944 | if (r) |
1945 | dev_err(dev, "%s: Get VOLUME fails.\n", __func__); | |
1946 | else | |
1947 | dev_info(dev, "VOLUME: 0x%04x\n", val); | |
1948 | } | |
1949 | ||
1950 | return 0; | |
1951 | } | |
1952 | ||
1953 | static void wl1273_vdev_release(struct video_device *dev) | |
1954 | { | |
1955 | } | |
1956 | ||
1957 | static const struct v4l2_ctrl_ops wl1273_ctrl_ops = { | |
1958 | .s_ctrl = wl1273_fm_vidioc_s_ctrl, | |
1959 | .g_volatile_ctrl = wl1273_fm_g_volatile_ctrl, | |
1960 | }; | |
1961 | ||
1962 | static const struct v4l2_ioctl_ops wl1273_ioctl_ops = { | |
1963 | .vidioc_querycap = wl1273_fm_vidioc_querycap, | |
1964 | .vidioc_g_input = wl1273_fm_vidioc_g_input, | |
1965 | .vidioc_s_input = wl1273_fm_vidioc_s_input, | |
1966 | .vidioc_g_audio = wl1273_fm_vidioc_g_audio, | |
1967 | .vidioc_s_audio = wl1273_fm_vidioc_s_audio, | |
1968 | .vidioc_g_tuner = wl1273_fm_vidioc_g_tuner, | |
1969 | .vidioc_s_tuner = wl1273_fm_vidioc_s_tuner, | |
1970 | .vidioc_g_frequency = wl1273_fm_vidioc_g_frequency, | |
1971 | .vidioc_s_frequency = wl1273_fm_vidioc_s_frequency, | |
1972 | .vidioc_s_hw_freq_seek = wl1273_fm_vidioc_s_hw_freq_seek, | |
1973 | .vidioc_g_modulator = wl1273_fm_vidioc_g_modulator, | |
1974 | .vidioc_s_modulator = wl1273_fm_vidioc_s_modulator, | |
1975 | .vidioc_log_status = wl1273_fm_vidioc_log_status, | |
1976 | }; | |
1977 | ||
1978 | static struct video_device wl1273_viddev_template = { | |
1979 | .fops = &wl1273_fops, | |
1980 | .ioctl_ops = &wl1273_ioctl_ops, | |
1981 | .name = WL1273_FM_DRIVER_NAME, | |
1982 | .release = wl1273_vdev_release, | |
ce4a3d52 | 1983 | .vfl_dir = VFL_DIR_TX, |
87d1a50c MA |
1984 | }; |
1985 | ||
1986 | static int wl1273_fm_radio_remove(struct platform_device *pdev) | |
1987 | { | |
1988 | struct wl1273_device *radio = platform_get_drvdata(pdev); | |
1989 | struct wl1273_core *core = radio->core; | |
1990 | ||
1991 | dev_info(&pdev->dev, "%s.\n", __func__); | |
1992 | ||
1993 | free_irq(core->client->irq, radio); | |
1994 | core->pdata->free_resources(); | |
1995 | ||
1996 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
1997 | video_unregister_device(&radio->videodev); | |
1998 | v4l2_device_unregister(&radio->v4l2dev); | |
87d1a50c MA |
1999 | |
2000 | return 0; | |
2001 | } | |
2002 | ||
4c62e976 | 2003 | static int wl1273_fm_radio_probe(struct platform_device *pdev) |
87d1a50c | 2004 | { |
9e554696 | 2005 | struct wl1273_core **core = pdev->dev.platform_data; |
87d1a50c MA |
2006 | struct wl1273_device *radio; |
2007 | struct v4l2_ctrl *ctrl; | |
2008 | int r = 0; | |
2009 | ||
2010 | pr_debug("%s\n", __func__); | |
2011 | ||
2012 | if (!core) { | |
2013 | dev_err(&pdev->dev, "No platform data.\n"); | |
2014 | r = -EINVAL; | |
2015 | goto pdata_err; | |
2016 | } | |
2017 | ||
d91e0139 | 2018 | radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL); |
87d1a50c MA |
2019 | if (!radio) { |
2020 | r = -ENOMEM; | |
2021 | goto pdata_err; | |
2022 | } | |
2023 | ||
2024 | /* RDS buffer allocation */ | |
2025 | radio->buf_size = rds_buf * RDS_BLOCK_SIZE; | |
d91e0139 | 2026 | radio->buffer = devm_kzalloc(&pdev->dev, radio->buf_size, GFP_KERNEL); |
87d1a50c MA |
2027 | if (!radio->buffer) { |
2028 | pr_err("Cannot allocate memory for RDS buffer.\n"); | |
2029 | r = -ENOMEM; | |
d91e0139 | 2030 | goto pdata_err; |
87d1a50c MA |
2031 | } |
2032 | ||
2033 | radio->core = *core; | |
2034 | radio->irq_flags = WL1273_IRQ_MASK; | |
2035 | radio->dev = &radio->core->client->dev; | |
2036 | radio->rds_on = false; | |
2037 | radio->core->mode = WL1273_MODE_OFF; | |
2038 | radio->tx_power = 118; | |
2039 | radio->core->audio_mode = WL1273_AUDIO_ANALOG; | |
2040 | radio->band = WL1273_BAND_OTHER; | |
2041 | radio->core->i2s_mode = WL1273_I2S_DEF_MODE; | |
2042 | radio->core->channel_number = 2; | |
2043 | radio->core->volume = WL1273_DEFAULT_VOLUME; | |
2044 | radio->rx_frequency = WL1273_BAND_OTHER_LOW; | |
2045 | radio->tx_frequency = WL1273_BAND_OTHER_HIGH; | |
2046 | radio->rangelow = WL1273_BAND_OTHER_LOW; | |
2047 | radio->rangehigh = WL1273_BAND_OTHER_HIGH; | |
2048 | radio->stereo = true; | |
2049 | radio->bus_type = "I2C"; | |
2050 | ||
87d1a50c MA |
2051 | if (radio->core->pdata->request_resources) { |
2052 | r = radio->core->pdata->request_resources(radio->core->client); | |
2053 | if (r) { | |
2054 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2055 | ": Cannot get platform data\n"); | |
d91e0139 | 2056 | goto pdata_err; |
87d1a50c MA |
2057 | } |
2058 | ||
2059 | dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq); | |
2060 | ||
2061 | r = request_threaded_irq(radio->core->client->irq, NULL, | |
2062 | wl1273_fm_irq_thread_handler, | |
2063 | IRQF_ONESHOT | IRQF_TRIGGER_FALLING, | |
2064 | "wl1273-fm", radio); | |
2065 | if (r < 0) { | |
2066 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2067 | ": Unable to register IRQ handler: %d\n", r); | |
2068 | goto err_request_irq; | |
2069 | } | |
2070 | } else { | |
2071 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ" | |
2072 | " not configured"); | |
2073 | r = -EINVAL; | |
d91e0139 | 2074 | goto pdata_err; |
87d1a50c MA |
2075 | } |
2076 | ||
2077 | init_completion(&radio->busy); | |
2078 | init_waitqueue_head(&radio->read_queue); | |
2079 | ||
d91e0139 | 2080 | radio->write_buf = devm_kzalloc(&pdev->dev, 256, GFP_KERNEL); |
87d1a50c MA |
2081 | if (!radio->write_buf) { |
2082 | r = -ENOMEM; | |
2083 | goto write_buf_err; | |
2084 | } | |
2085 | ||
2086 | radio->dev = &pdev->dev; | |
2087 | radio->v4l2dev.ctrl_handler = &radio->ctrl_handler; | |
2088 | radio->rds_users = 0; | |
2089 | ||
2090 | r = v4l2_device_register(&pdev->dev, &radio->v4l2dev); | |
2091 | if (r) { | |
2092 | dev_err(&pdev->dev, "Cannot register v4l2_device.\n"); | |
d91e0139 | 2093 | goto write_buf_err; |
87d1a50c MA |
2094 | } |
2095 | ||
2096 | /* V4L2 configuration */ | |
2b9b325d | 2097 | radio->videodev = wl1273_viddev_template; |
87d1a50c MA |
2098 | |
2099 | radio->videodev.v4l2_dev = &radio->v4l2dev; | |
2100 | ||
2101 | v4l2_ctrl_handler_init(&radio->ctrl_handler, 6); | |
2102 | ||
2103 | /* add in ascending ID order */ | |
2104 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2105 | V4L2_CID_AUDIO_VOLUME, 0, WL1273_MAX_VOLUME, 1, | |
2106 | WL1273_DEFAULT_VOLUME); | |
2107 | ||
2108 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2109 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); | |
2110 | ||
2111 | v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2112 | V4L2_CID_TUNE_PREEMPHASIS, | |
2113 | V4L2_PREEMPHASIS_75_uS, 0x03, | |
2114 | V4L2_PREEMPHASIS_50_uS); | |
2115 | ||
2116 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2117 | V4L2_CID_TUNE_POWER_LEVEL, 91, 122, 1, 118); | |
2118 | ||
2119 | ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2120 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, | |
2121 | 0, 255, 1, 255); | |
2122 | if (ctrl) | |
88365105 | 2123 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; |
87d1a50c MA |
2124 | |
2125 | if (radio->ctrl_handler.error) { | |
2126 | r = radio->ctrl_handler.error; | |
2127 | dev_err(&pdev->dev, "Ctrl handler error: %d\n", r); | |
2128 | goto handler_init_err; | |
2129 | } | |
2130 | ||
2131 | video_set_drvdata(&radio->videodev, radio); | |
2132 | platform_set_drvdata(pdev, radio); | |
2133 | ||
2134 | /* register video device */ | |
2135 | r = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr); | |
2136 | if (r) { | |
2137 | dev_err(&pdev->dev, WL1273_FM_DRIVER_NAME | |
2138 | ": Could not register video device\n"); | |
2139 | goto handler_init_err; | |
2140 | } | |
2141 | ||
2142 | return 0; | |
2143 | ||
2144 | handler_init_err: | |
2145 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
2146 | v4l2_device_unregister(&radio->v4l2dev); | |
87d1a50c MA |
2147 | write_buf_err: |
2148 | free_irq(radio->core->client->irq, radio); | |
2149 | err_request_irq: | |
2150 | radio->core->pdata->free_resources(); | |
87d1a50c MA |
2151 | pdata_err: |
2152 | return r; | |
2153 | } | |
2154 | ||
87d1a50c MA |
2155 | static struct platform_driver wl1273_fm_radio_driver = { |
2156 | .probe = wl1273_fm_radio_probe, | |
4c62e976 | 2157 | .remove = wl1273_fm_radio_remove, |
87d1a50c MA |
2158 | .driver = { |
2159 | .name = "wl1273_fm_radio", | |
87d1a50c MA |
2160 | }, |
2161 | }; | |
2162 | ||
1d6629b1 | 2163 | module_platform_driver(wl1273_fm_radio_driver); |
87d1a50c MA |
2164 | |
2165 | MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>"); | |
2166 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2167 | MODULE_LICENSE("GPL"); | |
1d6629b1 | 2168 | MODULE_ALIAS("platform:wl1273_fm_radio"); |