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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> | |
26 | #include <media/v4l2-common.h> | |
27 | #include <media/v4l2-ctrls.h> | |
28 | #include <media/v4l2-device.h> | |
29 | #include <media/v4l2-ioctl.h> | |
30 | ||
31 | #define DRIVER_DESC "Wl1273 FM Radio" | |
32 | ||
33 | #define WL1273_POWER_SET_OFF 0 | |
34 | #define WL1273_POWER_SET_FM BIT(0) | |
35 | #define WL1273_POWER_SET_RDS BIT(1) | |
36 | #define WL1273_POWER_SET_RETENTION BIT(4) | |
37 | ||
38 | #define WL1273_PUPD_SET_OFF 0x00 | |
39 | #define WL1273_PUPD_SET_ON 0x01 | |
40 | #define WL1273_PUPD_SET_RETENTION 0x10 | |
41 | ||
42 | #define WL1273_FREQ(x) (x * 10000 / 625) | |
43 | #define WL1273_INV_FREQ(x) (x * 625 / 10000) | |
44 | ||
45 | /* | |
46 | * static int radio_nr - The number of the radio device | |
47 | * | |
48 | * The default is 0. | |
49 | */ | |
50 | static int radio_nr; | |
51 | module_param(radio_nr, int, 0); | |
52 | MODULE_PARM_DESC(radio_nr, "The number of the radio device. Default = 0"); | |
53 | ||
54 | struct wl1273_device { | |
55 | char *bus_type; | |
56 | ||
57 | u8 forbidden; | |
58 | unsigned int preemphasis; | |
59 | unsigned int spacing; | |
60 | unsigned int tx_power; | |
61 | unsigned int rx_frequency; | |
62 | unsigned int tx_frequency; | |
63 | unsigned int rangelow; | |
64 | unsigned int rangehigh; | |
65 | unsigned int band; | |
66 | bool stereo; | |
67 | ||
68 | /* RDS */ | |
69 | unsigned int rds_on; | |
87d1a50c MA |
70 | |
71 | wait_queue_head_t read_queue; | |
72 | struct mutex lock; /* for serializing fm radio operations */ | |
73 | struct completion busy; | |
74 | ||
75 | unsigned char *buffer; | |
76 | unsigned int buf_size; | |
77 | unsigned int rd_index; | |
78 | unsigned int wr_index; | |
79 | ||
80 | /* Selected interrupts */ | |
81 | u16 irq_flags; | |
82 | u16 irq_received; | |
83 | ||
84 | struct v4l2_ctrl_handler ctrl_handler; | |
85 | struct v4l2_device v4l2dev; | |
86 | struct video_device videodev; | |
87 | struct device *dev; | |
88 | struct wl1273_core *core; | |
89 | struct file *owner; | |
90 | char *write_buf; | |
91 | unsigned int rds_users; | |
92 | }; | |
93 | ||
94 | #define WL1273_IRQ_MASK (WL1273_FR_EVENT | \ | |
95 | WL1273_POW_ENB_EVENT) | |
96 | ||
97 | /* | |
98 | * static unsigned int rds_buf - the number of RDS buffer blocks used. | |
99 | * | |
100 | * The default number is 100. | |
101 | */ | |
102 | static unsigned int rds_buf = 100; | |
103 | module_param(rds_buf, uint, 0); | |
104 | MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 100"); | |
105 | ||
87d1a50c MA |
106 | static int wl1273_fm_write_fw(struct wl1273_core *core, |
107 | __u8 *fw, int len) | |
108 | { | |
109 | struct i2c_client *client = core->client; | |
110 | struct i2c_msg msg; | |
111 | int i, r = 0; | |
112 | ||
113 | msg.addr = client->addr; | |
114 | msg.flags = 0; | |
115 | ||
116 | for (i = 0; i <= len; i++) { | |
117 | msg.len = fw[0]; | |
118 | msg.buf = fw + 1; | |
119 | ||
120 | fw += msg.len + 1; | |
121 | dev_dbg(&client->dev, "%s:len[%d]: %d\n", __func__, i, msg.len); | |
122 | ||
123 | r = i2c_transfer(client->adapter, &msg, 1); | |
124 | if (r < 0 && i < len + 1) | |
125 | break; | |
126 | } | |
127 | ||
128 | dev_dbg(&client->dev, "%s: i: %d\n", __func__, i); | |
129 | dev_dbg(&client->dev, "%s: len + 1: %d\n", __func__, len + 1); | |
130 | ||
131 | /* Last transfer always fails. */ | |
132 | if (i == len || r == 1) | |
133 | r = 0; | |
134 | ||
135 | return r; | |
136 | } | |
137 | ||
87d1a50c MA |
138 | #define WL1273_FIFO_HAS_DATA(status) (1 << 5 & status) |
139 | #define WL1273_RDS_CORRECTABLE_ERROR (1 << 3) | |
140 | #define WL1273_RDS_UNCORRECTABLE_ERROR (1 << 4) | |
141 | ||
142 | static int wl1273_fm_rds(struct wl1273_device *radio) | |
143 | { | |
144 | struct wl1273_core *core = radio->core; | |
145 | struct i2c_client *client = core->client; | |
146 | u16 val; | |
147 | u8 b0 = WL1273_RDS_DATA_GET, status; | |
148 | struct v4l2_rds_data rds = { 0, 0, 0 }; | |
149 | struct i2c_msg msg[] = { | |
150 | { | |
151 | .addr = client->addr, | |
152 | .flags = 0, | |
153 | .buf = &b0, | |
154 | .len = 1, | |
155 | }, | |
156 | { | |
157 | .addr = client->addr, | |
158 | .flags = I2C_M_RD, | |
159 | .buf = (u8 *) &rds, | |
160 | .len = sizeof(rds), | |
161 | } | |
162 | }; | |
163 | int r; | |
164 | ||
165 | if (core->mode != WL1273_MODE_RX) | |
166 | return 0; | |
167 | ||
96a9cc68 | 168 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
169 | if (r) |
170 | return r; | |
171 | ||
172 | if ((val & 0x01) == 0) { | |
173 | /* RDS decoder not synchronized */ | |
174 | return -EAGAIN; | |
175 | } | |
176 | ||
177 | /* copy all four RDS blocks to internal buffer */ | |
178 | do { | |
179 | r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); | |
180 | if (r != ARRAY_SIZE(msg)) { | |
181 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
182 | ": %s: read_rds error r == %i)\n", | |
183 | __func__, r); | |
184 | } | |
185 | ||
186 | status = rds.block; | |
187 | ||
188 | if (!WL1273_FIFO_HAS_DATA(status)) | |
189 | break; | |
190 | ||
191 | /* copy bits 0-2 (the block ID) to bits 3-5 */ | |
192 | rds.block = V4L2_RDS_BLOCK_MSK & status; | |
193 | rds.block |= rds.block << 3; | |
194 | ||
195 | /* copy the error bits to standard positions */ | |
196 | if (WL1273_RDS_UNCORRECTABLE_ERROR & status) { | |
197 | rds.block |= V4L2_RDS_BLOCK_ERROR; | |
198 | rds.block &= ~V4L2_RDS_BLOCK_CORRECTED; | |
199 | } else if (WL1273_RDS_CORRECTABLE_ERROR & status) { | |
200 | rds.block &= ~V4L2_RDS_BLOCK_ERROR; | |
201 | rds.block |= V4L2_RDS_BLOCK_CORRECTED; | |
202 | } | |
203 | ||
204 | /* copy RDS block to internal buffer */ | |
205 | memcpy(&radio->buffer[radio->wr_index], &rds, RDS_BLOCK_SIZE); | |
206 | radio->wr_index += 3; | |
207 | ||
208 | /* wrap write pointer */ | |
209 | if (radio->wr_index >= radio->buf_size) | |
210 | radio->wr_index = 0; | |
211 | ||
212 | /* check for overflow & start over */ | |
213 | if (radio->wr_index == radio->rd_index) { | |
214 | dev_dbg(radio->dev, "RDS OVERFLOW"); | |
215 | ||
216 | radio->rd_index = 0; | |
217 | radio->wr_index = 0; | |
218 | break; | |
219 | } | |
220 | } while (WL1273_FIFO_HAS_DATA(status)); | |
221 | ||
222 | /* wake up read queue */ | |
223 | if (radio->wr_index != radio->rd_index) | |
224 | wake_up_interruptible(&radio->read_queue); | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id) | |
230 | { | |
231 | struct wl1273_device *radio = dev_id; | |
232 | struct wl1273_core *core = radio->core; | |
233 | u16 flags; | |
234 | int r; | |
235 | ||
96a9cc68 | 236 | r = core->read(core, WL1273_FLAG_GET, &flags); |
87d1a50c MA |
237 | if (r) |
238 | goto out; | |
239 | ||
240 | if (flags & WL1273_BL_EVENT) { | |
241 | radio->irq_received = flags; | |
242 | dev_dbg(radio->dev, "IRQ: BL\n"); | |
243 | } | |
244 | ||
245 | if (flags & WL1273_RDS_EVENT) { | |
246 | msleep(200); | |
247 | ||
248 | wl1273_fm_rds(radio); | |
249 | } | |
250 | ||
251 | if (flags & WL1273_BBLK_EVENT) | |
252 | dev_dbg(radio->dev, "IRQ: BBLK\n"); | |
253 | ||
254 | if (flags & WL1273_LSYNC_EVENT) | |
255 | dev_dbg(radio->dev, "IRQ: LSYNC\n"); | |
256 | ||
257 | if (flags & WL1273_LEV_EVENT) { | |
258 | u16 level; | |
259 | ||
96a9cc68 | 260 | r = core->read(core, WL1273_RSSI_LVL_GET, &level); |
87d1a50c MA |
261 | if (r) |
262 | goto out; | |
263 | ||
264 | if (level > 14) | |
265 | dev_dbg(radio->dev, "IRQ: LEV: 0x%x04\n", level); | |
266 | } | |
267 | ||
268 | if (flags & WL1273_IFFR_EVENT) | |
269 | dev_dbg(radio->dev, "IRQ: IFFR\n"); | |
270 | ||
271 | if (flags & WL1273_PI_EVENT) | |
272 | dev_dbg(radio->dev, "IRQ: PI\n"); | |
273 | ||
274 | if (flags & WL1273_PD_EVENT) | |
275 | dev_dbg(radio->dev, "IRQ: PD\n"); | |
276 | ||
277 | if (flags & WL1273_STIC_EVENT) | |
278 | dev_dbg(radio->dev, "IRQ: STIC\n"); | |
279 | ||
280 | if (flags & WL1273_MAL_EVENT) | |
281 | dev_dbg(radio->dev, "IRQ: MAL\n"); | |
282 | ||
283 | if (flags & WL1273_POW_ENB_EVENT) { | |
284 | complete(&radio->busy); | |
285 | dev_dbg(radio->dev, "NOT BUSY\n"); | |
286 | dev_dbg(radio->dev, "IRQ: POW_ENB\n"); | |
287 | } | |
288 | ||
289 | if (flags & WL1273_SCAN_OVER_EVENT) | |
290 | dev_dbg(radio->dev, "IRQ: SCAN_OVER\n"); | |
291 | ||
292 | if (flags & WL1273_ERROR_EVENT) | |
293 | dev_dbg(radio->dev, "IRQ: ERROR\n"); | |
294 | ||
295 | if (flags & WL1273_FR_EVENT) { | |
296 | u16 freq; | |
297 | ||
298 | dev_dbg(radio->dev, "IRQ: FR:\n"); | |
299 | ||
300 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
301 | r = core->write(core, WL1273_TUNER_MODE_SET, |
302 | TUNER_MODE_STOP_SEARCH); | |
87d1a50c MA |
303 | if (r) { |
304 | dev_err(radio->dev, | |
305 | "%s: TUNER_MODE_SET fails: %d\n", | |
306 | __func__, r); | |
307 | goto out; | |
308 | } | |
309 | ||
96a9cc68 | 310 | r = core->read(core, WL1273_FREQ_SET, &freq); |
87d1a50c MA |
311 | if (r) |
312 | goto out; | |
313 | ||
314 | if (radio->band == WL1273_BAND_JAPAN) | |
315 | radio->rx_frequency = WL1273_BAND_JAPAN_LOW + | |
316 | freq * 50; | |
317 | else | |
318 | radio->rx_frequency = WL1273_BAND_OTHER_LOW + | |
319 | freq * 50; | |
320 | /* | |
321 | * The driver works better with this msleep, | |
322 | * the documentation doesn't mention it. | |
323 | */ | |
324 | usleep_range(10000, 15000); | |
325 | ||
326 | dev_dbg(radio->dev, "%dkHz\n", radio->rx_frequency); | |
327 | ||
328 | } else { | |
96a9cc68 | 329 | r = core->read(core, WL1273_CHANL_SET, &freq); |
87d1a50c MA |
330 | if (r) |
331 | goto out; | |
332 | ||
333 | dev_dbg(radio->dev, "%dkHz\n", freq); | |
334 | } | |
335 | dev_dbg(radio->dev, "%s: NOT BUSY\n", __func__); | |
336 | } | |
337 | ||
338 | out: | |
96a9cc68 | 339 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
340 | complete(&radio->busy); |
341 | ||
342 | return IRQ_HANDLED; | |
343 | } | |
344 | ||
345 | static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq) | |
346 | { | |
347 | struct wl1273_core *core = radio->core; | |
348 | int r = 0; | |
349 | ||
350 | if (freq < WL1273_BAND_TX_LOW) { | |
351 | dev_err(radio->dev, | |
352 | "Frequency out of range: %d < %d\n", freq, | |
353 | WL1273_BAND_TX_LOW); | |
354 | return -ERANGE; | |
355 | } | |
356 | ||
357 | if (freq > WL1273_BAND_TX_HIGH) { | |
358 | dev_err(radio->dev, | |
359 | "Frequency out of range: %d > %d\n", freq, | |
360 | WL1273_BAND_TX_HIGH); | |
361 | return -ERANGE; | |
362 | } | |
363 | ||
364 | /* | |
365 | * The driver works better with this sleep, | |
366 | * the documentation doesn't mention it. | |
367 | */ | |
368 | usleep_range(5000, 10000); | |
369 | ||
370 | dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq); | |
371 | ||
372 | /* Set the current tx channel */ | |
96a9cc68 | 373 | r = core->write(core, WL1273_CHANL_SET, freq / 10); |
87d1a50c MA |
374 | if (r) |
375 | return r; | |
376 | ||
377 | INIT_COMPLETION(radio->busy); | |
378 | ||
379 | /* wait for the FR IRQ */ | |
380 | r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); | |
381 | if (!r) | |
382 | return -ETIMEDOUT; | |
383 | ||
384 | dev_dbg(radio->dev, "WL1273_CHANL_SET: %d\n", r); | |
385 | ||
386 | /* Enable the output power */ | |
96a9cc68 | 387 | r = core->write(core, WL1273_POWER_ENB_SET, 1); |
87d1a50c MA |
388 | if (r) |
389 | return r; | |
390 | ||
391 | INIT_COMPLETION(radio->busy); | |
392 | ||
393 | /* wait for the POWER_ENB IRQ */ | |
394 | r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); | |
395 | if (!r) | |
396 | return -ETIMEDOUT; | |
397 | ||
398 | radio->tx_frequency = freq; | |
399 | dev_dbg(radio->dev, "WL1273_POWER_ENB_SET: %d\n", r); | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
404 | static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq) | |
405 | { | |
406 | struct wl1273_core *core = radio->core; | |
407 | int r, f; | |
408 | ||
409 | if (freq < radio->rangelow) { | |
410 | dev_err(radio->dev, | |
411 | "Frequency out of range: %d < %d\n", freq, | |
412 | radio->rangelow); | |
413 | r = -ERANGE; | |
414 | goto err; | |
415 | } | |
416 | ||
417 | if (freq > radio->rangehigh) { | |
418 | dev_err(radio->dev, | |
419 | "Frequency out of range: %d > %d\n", freq, | |
420 | radio->rangehigh); | |
421 | r = -ERANGE; | |
422 | goto err; | |
423 | } | |
424 | ||
425 | dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq); | |
426 | ||
96a9cc68 | 427 | core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
428 | |
429 | if (radio->band == WL1273_BAND_JAPAN) | |
430 | f = (freq - WL1273_BAND_JAPAN_LOW) / 50; | |
431 | else | |
432 | f = (freq - WL1273_BAND_OTHER_LOW) / 50; | |
433 | ||
96a9cc68 | 434 | r = core->write(core, WL1273_FREQ_SET, f); |
87d1a50c MA |
435 | if (r) { |
436 | dev_err(radio->dev, "FREQ_SET fails\n"); | |
437 | goto err; | |
438 | } | |
439 | ||
96a9cc68 | 440 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET); |
87d1a50c MA |
441 | if (r) { |
442 | dev_err(radio->dev, "TUNER_MODE_SET fails\n"); | |
443 | goto err; | |
444 | } | |
445 | ||
446 | INIT_COMPLETION(radio->busy); | |
447 | ||
448 | r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); | |
449 | if (!r) { | |
450 | dev_err(radio->dev, "%s: TIMEOUT\n", __func__); | |
451 | return -ETIMEDOUT; | |
452 | } | |
453 | ||
454 | radio->rd_index = 0; | |
455 | radio->wr_index = 0; | |
456 | radio->rx_frequency = freq; | |
457 | return 0; | |
458 | err: | |
459 | return r; | |
460 | } | |
461 | ||
462 | static int wl1273_fm_get_freq(struct wl1273_device *radio) | |
463 | { | |
464 | struct wl1273_core *core = radio->core; | |
465 | unsigned int freq; | |
466 | u16 f; | |
467 | int r; | |
468 | ||
469 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 470 | r = core->read(core, WL1273_FREQ_SET, &f); |
87d1a50c MA |
471 | if (r) |
472 | return r; | |
473 | ||
474 | dev_dbg(radio->dev, "Freq get: 0x%04x\n", f); | |
475 | if (radio->band == WL1273_BAND_JAPAN) | |
476 | freq = WL1273_BAND_JAPAN_LOW + 50 * f; | |
477 | else | |
478 | freq = WL1273_BAND_OTHER_LOW + 50 * f; | |
479 | } else { | |
96a9cc68 | 480 | r = core->read(core, WL1273_CHANL_SET, &f); |
87d1a50c MA |
481 | if (r) |
482 | return r; | |
483 | ||
484 | freq = f * 10; | |
485 | } | |
486 | ||
487 | return freq; | |
488 | } | |
489 | ||
490 | /** | |
491 | * wl1273_fm_upload_firmware_patch() - Upload the firmware. | |
492 | * @radio: A pointer to the device struct. | |
493 | * | |
494 | * The firmware file consists of arrays of bytes where the first byte | |
495 | * gives the array length. The first byte in the file gives the | |
496 | * number of these arrays. | |
497 | */ | |
498 | static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio) | |
499 | { | |
500 | struct wl1273_core *core = radio->core; | |
501 | unsigned int packet_num; | |
502 | const struct firmware *fw_p; | |
503 | const char *fw_name = "radio-wl1273-fw.bin"; | |
504 | struct device *dev = radio->dev; | |
505 | __u8 *ptr; | |
fce50ac8 | 506 | int r; |
87d1a50c MA |
507 | |
508 | dev_dbg(dev, "%s:\n", __func__); | |
509 | ||
510 | /* | |
511 | * Uploading the firmware patch is not always necessary, | |
512 | * so we only print an info message. | |
513 | */ | |
514 | if (request_firmware(&fw_p, fw_name, dev)) { | |
515 | dev_info(dev, "%s - %s not found\n", __func__, fw_name); | |
516 | ||
517 | return 0; | |
518 | } | |
519 | ||
520 | ptr = (__u8 *) fw_p->data; | |
521 | packet_num = ptr[0]; | |
522 | dev_dbg(dev, "%s: packets: %d\n", __func__, packet_num); | |
523 | ||
524 | r = wl1273_fm_write_fw(core, ptr + 1, packet_num); | |
525 | if (r) { | |
526 | dev_err(dev, "FW upload error: %d\n", r); | |
527 | goto out; | |
528 | } | |
529 | ||
530 | /* ignore possible error here */ | |
96a9cc68 | 531 | core->write(core, WL1273_RESET, 0); |
87d1a50c | 532 | |
87d1a50c MA |
533 | dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r); |
534 | out: | |
535 | release_firmware(fw_p); | |
536 | return r; | |
537 | } | |
538 | ||
539 | static int wl1273_fm_stop(struct wl1273_device *radio) | |
540 | { | |
541 | struct wl1273_core *core = radio->core; | |
542 | ||
543 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 | 544 | int r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
545 | WL1273_POWER_SET_OFF); |
546 | if (r) | |
547 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", | |
548 | __func__, r); | |
549 | } else if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
550 | int r = core->write(core, WL1273_PUPD_SET, |
551 | WL1273_PUPD_SET_OFF); | |
87d1a50c MA |
552 | if (r) |
553 | dev_err(radio->dev, | |
554 | "%s: PUPD_SET fails: %d\n", __func__, r); | |
555 | } | |
556 | ||
557 | if (core->pdata->disable) { | |
558 | core->pdata->disable(); | |
559 | dev_dbg(radio->dev, "Back to reset\n"); | |
560 | } | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | static int wl1273_fm_start(struct wl1273_device *radio, int new_mode) | |
566 | { | |
567 | struct wl1273_core *core = radio->core; | |
568 | struct wl1273_fm_platform_data *pdata = core->pdata; | |
569 | struct device *dev = radio->dev; | |
570 | int r = -EINVAL; | |
571 | ||
572 | if (pdata->enable && core->mode == WL1273_MODE_OFF) { | |
573 | dev_dbg(radio->dev, "Out of reset\n"); | |
574 | ||
575 | pdata->enable(); | |
576 | msleep(250); | |
577 | } | |
578 | ||
579 | if (new_mode == WL1273_MODE_RX) { | |
580 | u16 val = WL1273_POWER_SET_FM; | |
581 | ||
582 | if (radio->rds_on) | |
583 | val |= WL1273_POWER_SET_RDS; | |
584 | ||
585 | /* If this fails try again */ | |
96a9cc68 | 586 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
587 | if (r) { |
588 | msleep(100); | |
589 | ||
96a9cc68 | 590 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
591 | if (r) { |
592 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
593 | goto fail; | |
594 | } | |
595 | } | |
596 | ||
597 | /* rds buffer configuration */ | |
598 | radio->wr_index = 0; | |
599 | radio->rd_index = 0; | |
600 | ||
601 | } else if (new_mode == WL1273_MODE_TX) { | |
602 | /* If this fails try again once */ | |
96a9cc68 | 603 | r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON); |
87d1a50c MA |
604 | if (r) { |
605 | msleep(100); | |
96a9cc68 | 606 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
607 | WL1273_PUPD_SET_ON); |
608 | if (r) { | |
609 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
610 | goto fail; | |
611 | } | |
612 | } | |
613 | ||
614 | if (radio->rds_on) | |
96a9cc68 | 615 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c | 616 | else |
96a9cc68 | 617 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c MA |
618 | } else { |
619 | dev_warn(dev, "%s: Illegal mode.\n", __func__); | |
620 | } | |
621 | ||
622 | if (core->mode == WL1273_MODE_OFF) { | |
623 | r = wl1273_fm_upload_firmware_patch(radio); | |
624 | if (r) | |
625 | dev_warn(dev, "Firmware upload failed.\n"); | |
626 | ||
627 | /* | |
628 | * Sometimes the chip is in a wrong power state at this point. | |
629 | * So we set the power once again. | |
630 | */ | |
631 | if (new_mode == WL1273_MODE_RX) { | |
632 | u16 val = WL1273_POWER_SET_FM; | |
633 | ||
634 | if (radio->rds_on) | |
635 | val |= WL1273_POWER_SET_RDS; | |
636 | ||
96a9cc68 | 637 | r = core->write(core, WL1273_POWER_SET, val); |
87d1a50c MA |
638 | if (r) { |
639 | dev_err(dev, "%s: POWER_SET fails\n", __func__); | |
640 | goto fail; | |
641 | } | |
642 | } else if (new_mode == WL1273_MODE_TX) { | |
96a9cc68 MA |
643 | r = core->write(core, WL1273_PUPD_SET, |
644 | WL1273_PUPD_SET_ON); | |
87d1a50c MA |
645 | if (r) { |
646 | dev_err(dev, "%s: PUPD_SET fails\n", __func__); | |
647 | goto fail; | |
648 | } | |
649 | } | |
650 | } | |
651 | ||
652 | return 0; | |
653 | fail: | |
654 | if (pdata->disable) | |
655 | pdata->disable(); | |
656 | ||
657 | dev_dbg(dev, "%s: return: %d\n", __func__, r); | |
658 | return r; | |
659 | } | |
660 | ||
661 | static int wl1273_fm_suspend(struct wl1273_device *radio) | |
662 | { | |
663 | struct wl1273_core *core = radio->core; | |
664 | int r = 0; | |
665 | ||
666 | /* Cannot go from OFF to SUSPENDED */ | |
667 | if (core->mode == WL1273_MODE_RX) | |
96a9cc68 | 668 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
669 | WL1273_POWER_SET_RETENTION); |
670 | else if (core->mode == WL1273_MODE_TX) | |
96a9cc68 | 671 | r = core->write(core, WL1273_PUPD_SET, |
87d1a50c MA |
672 | WL1273_PUPD_SET_RETENTION); |
673 | else | |
674 | r = -EINVAL; | |
675 | ||
676 | if (r) { | |
677 | dev_err(radio->dev, "%s: POWER_SET fails: %d\n", __func__, r); | |
678 | goto out; | |
679 | } | |
680 | ||
681 | out: | |
682 | return r; | |
683 | } | |
684 | ||
685 | static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode) | |
686 | { | |
687 | struct wl1273_core *core = radio->core; | |
688 | struct device *dev = radio->dev; | |
689 | int old_mode; | |
690 | int r; | |
691 | ||
692 | dev_dbg(dev, "%s\n", __func__); | |
693 | dev_dbg(dev, "Forbidden modes: 0x%02x\n", radio->forbidden); | |
694 | ||
695 | old_mode = core->mode; | |
696 | if (mode & radio->forbidden) { | |
697 | r = -EPERM; | |
698 | goto out; | |
699 | } | |
700 | ||
701 | switch (mode) { | |
702 | case WL1273_MODE_RX: | |
703 | case WL1273_MODE_TX: | |
704 | r = wl1273_fm_start(radio, mode); | |
705 | if (r) { | |
706 | dev_err(dev, "%s: Cannot start.\n", __func__); | |
707 | wl1273_fm_stop(radio); | |
708 | goto out; | |
709 | } | |
710 | ||
711 | core->mode = mode; | |
96a9cc68 | 712 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
713 | if (r) { |
714 | dev_err(dev, "INT_MASK_SET fails.\n"); | |
715 | goto out; | |
716 | } | |
717 | ||
718 | /* remember previous settings */ | |
719 | if (mode == WL1273_MODE_RX) { | |
720 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
721 | if (r) { | |
722 | dev_err(dev, "set freq fails: %d.\n", r); | |
723 | goto out; | |
724 | } | |
725 | ||
726 | r = core->set_volume(core, core->volume); | |
727 | if (r) { | |
728 | dev_err(dev, "set volume fails: %d.\n", r); | |
729 | goto out; | |
730 | } | |
731 | ||
732 | dev_dbg(dev, "%s: Set vol: %d.\n", __func__, | |
733 | core->volume); | |
734 | } else { | |
735 | r = wl1273_fm_set_tx_freq(radio, radio->tx_frequency); | |
736 | if (r) { | |
737 | dev_err(dev, "set freq fails: %d.\n", r); | |
738 | goto out; | |
739 | } | |
740 | } | |
741 | ||
742 | dev_dbg(radio->dev, "%s: Set audio mode.\n", __func__); | |
743 | ||
744 | r = core->set_audio(core, core->audio_mode); | |
745 | if (r) | |
746 | dev_err(dev, "Cannot set audio mode.\n"); | |
747 | break; | |
748 | ||
749 | case WL1273_MODE_OFF: | |
750 | r = wl1273_fm_stop(radio); | |
751 | if (r) | |
752 | dev_err(dev, "%s: Off fails: %d\n", __func__, r); | |
753 | else | |
754 | core->mode = WL1273_MODE_OFF; | |
755 | ||
756 | break; | |
757 | ||
758 | case WL1273_MODE_SUSPENDED: | |
759 | r = wl1273_fm_suspend(radio); | |
760 | if (r) | |
761 | dev_err(dev, "%s: Suspend fails: %d\n", __func__, r); | |
762 | else | |
763 | core->mode = WL1273_MODE_SUSPENDED; | |
764 | ||
765 | break; | |
766 | ||
767 | default: | |
768 | dev_err(dev, "%s: Unknown mode: %d\n", __func__, mode); | |
769 | r = -EINVAL; | |
770 | break; | |
771 | } | |
772 | out: | |
773 | if (r) | |
774 | core->mode = old_mode; | |
775 | ||
776 | return r; | |
777 | } | |
778 | ||
779 | static int wl1273_fm_set_seek(struct wl1273_device *radio, | |
780 | unsigned int wrap_around, | |
781 | unsigned int seek_upward, | |
782 | int level) | |
783 | { | |
784 | struct wl1273_core *core = radio->core; | |
785 | int r = 0; | |
786 | unsigned int dir = (seek_upward == 0) ? 0 : 1; | |
787 | unsigned int f; | |
788 | ||
789 | f = radio->rx_frequency; | |
790 | dev_dbg(radio->dev, "rx_frequency: %d\n", f); | |
791 | ||
792 | if (dir && f + radio->spacing <= radio->rangehigh) | |
793 | r = wl1273_fm_set_rx_freq(radio, f + radio->spacing); | |
794 | else if (dir && wrap_around) | |
795 | r = wl1273_fm_set_rx_freq(radio, radio->rangelow); | |
796 | else if (f - radio->spacing >= radio->rangelow) | |
797 | r = wl1273_fm_set_rx_freq(radio, f - radio->spacing); | |
798 | else if (wrap_around) | |
799 | r = wl1273_fm_set_rx_freq(radio, radio->rangehigh); | |
800 | ||
801 | if (r) | |
802 | goto out; | |
803 | ||
804 | if (level < SCHAR_MIN || level > SCHAR_MAX) | |
805 | return -EINVAL; | |
806 | ||
807 | INIT_COMPLETION(radio->busy); | |
808 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); | |
809 | ||
96a9cc68 | 810 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
811 | if (r) |
812 | goto out; | |
813 | ||
814 | dev_dbg(radio->dev, "%s\n", __func__); | |
815 | ||
96a9cc68 | 816 | r = core->write(core, WL1273_SEARCH_LVL_SET, level); |
87d1a50c MA |
817 | if (r) |
818 | goto out; | |
819 | ||
96a9cc68 | 820 | r = core->write(core, WL1273_SEARCH_DIR_SET, dir); |
87d1a50c MA |
821 | if (r) |
822 | goto out; | |
823 | ||
96a9cc68 | 824 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
825 | if (r) |
826 | goto out; | |
827 | ||
828 | wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); | |
829 | if (!(radio->irq_received & WL1273_BL_EVENT)) | |
830 | goto out; | |
831 | ||
832 | radio->irq_received &= ~WL1273_BL_EVENT; | |
833 | ||
834 | if (!wrap_around) | |
835 | goto out; | |
836 | ||
837 | /* Wrap around */ | |
838 | dev_dbg(radio->dev, "Wrap around in HW seek.\n"); | |
839 | ||
840 | if (seek_upward) | |
841 | f = radio->rangelow; | |
842 | else | |
843 | f = radio->rangehigh; | |
844 | ||
845 | r = wl1273_fm_set_rx_freq(radio, f); | |
846 | if (r) | |
847 | goto out; | |
848 | ||
849 | INIT_COMPLETION(radio->busy); | |
850 | dev_dbg(radio->dev, "%s: BUSY\n", __func__); | |
851 | ||
96a9cc68 | 852 | r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
87d1a50c MA |
853 | if (r) |
854 | goto out; | |
855 | ||
856 | wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); | |
857 | out: | |
858 | dev_dbg(radio->dev, "%s: Err: %d\n", __func__, r); | |
859 | return r; | |
860 | } | |
861 | ||
862 | /** | |
863 | * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value. | |
864 | * @radio: A pointer to the device struct. | |
865 | */ | |
866 | static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio) | |
867 | { | |
868 | struct wl1273_core *core = radio->core; | |
869 | struct device *dev = radio->dev; | |
870 | u16 val; | |
871 | int r; | |
872 | ||
873 | if (core->mode == WL1273_MODE_OFF || | |
874 | core->mode == WL1273_MODE_SUSPENDED) | |
875 | return -EPERM; | |
876 | ||
96a9cc68 | 877 | r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val); |
87d1a50c MA |
878 | if (r) { |
879 | dev_err(dev, "%s: read error: %d\n", __func__, r); | |
880 | goto out; | |
881 | } | |
882 | ||
883 | out: | |
884 | return val; | |
885 | } | |
886 | ||
887 | /** | |
888 | * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value. | |
889 | * @radio: A pointer to the device struct. | |
890 | * @preemphasis: The new pre-amphasis value. | |
891 | * | |
892 | * Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED, | |
893 | * V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS. | |
894 | */ | |
895 | static int wl1273_fm_set_preemphasis(struct wl1273_device *radio, | |
896 | unsigned int preemphasis) | |
897 | { | |
898 | struct wl1273_core *core = radio->core; | |
899 | int r; | |
900 | u16 em; | |
901 | ||
902 | if (core->mode == WL1273_MODE_OFF || | |
903 | core->mode == WL1273_MODE_SUSPENDED) | |
904 | return -EPERM; | |
905 | ||
906 | mutex_lock(&core->lock); | |
907 | ||
908 | switch (preemphasis) { | |
909 | case V4L2_PREEMPHASIS_DISABLED: | |
910 | em = 1; | |
911 | break; | |
912 | case V4L2_PREEMPHASIS_50_uS: | |
913 | em = 0; | |
914 | break; | |
915 | case V4L2_PREEMPHASIS_75_uS: | |
916 | em = 2; | |
917 | break; | |
918 | default: | |
919 | r = -EINVAL; | |
920 | goto out; | |
921 | } | |
922 | ||
96a9cc68 | 923 | r = core->write(core, WL1273_PREMPH_SET, em); |
87d1a50c MA |
924 | if (r) |
925 | goto out; | |
926 | ||
927 | radio->preemphasis = preemphasis; | |
928 | ||
929 | out: | |
930 | mutex_unlock(&core->lock); | |
931 | return r; | |
932 | } | |
933 | ||
934 | static int wl1273_fm_rds_on(struct wl1273_device *radio) | |
935 | { | |
936 | struct wl1273_core *core = radio->core; | |
937 | int r; | |
938 | ||
939 | dev_dbg(radio->dev, "%s\n", __func__); | |
940 | if (radio->rds_on) | |
941 | return 0; | |
942 | ||
96a9cc68 | 943 | r = core->write(core, WL1273_POWER_SET, |
87d1a50c MA |
944 | WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS); |
945 | if (r) | |
946 | goto out; | |
947 | ||
948 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
949 | if (r) | |
950 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
951 | out: | |
952 | return r; | |
953 | } | |
954 | ||
955 | static int wl1273_fm_rds_off(struct wl1273_device *radio) | |
956 | { | |
957 | struct wl1273_core *core = radio->core; | |
958 | int r; | |
959 | ||
960 | if (!radio->rds_on) | |
961 | return 0; | |
962 | ||
963 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
964 | ||
96a9cc68 | 965 | r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
87d1a50c MA |
966 | if (r) |
967 | goto out; | |
968 | ||
87d1a50c MA |
969 | /* Service pending read */ |
970 | wake_up_interruptible(&radio->read_queue); | |
971 | ||
972 | dev_dbg(radio->dev, "%s\n", __func__); | |
973 | ||
96a9cc68 | 974 | r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM); |
87d1a50c MA |
975 | if (r) |
976 | goto out; | |
977 | ||
978 | r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); | |
979 | if (r) | |
980 | dev_err(radio->dev, "set freq fails: %d.\n", r); | |
981 | out: | |
982 | dev_dbg(radio->dev, "%s: exiting...\n", __func__); | |
983 | ||
984 | return r; | |
985 | } | |
986 | ||
987 | static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode) | |
988 | { | |
989 | int r = 0; | |
990 | struct wl1273_core *core = radio->core; | |
991 | ||
992 | if (core->mode == WL1273_MODE_OFF || | |
993 | core->mode == WL1273_MODE_SUSPENDED) | |
994 | return -EPERM; | |
995 | ||
996 | if (new_mode == WL1273_RDS_RESET) { | |
96a9cc68 | 997 | r = core->write(core, WL1273_RDS_CNTRL_SET, 1); |
87d1a50c MA |
998 | return r; |
999 | } | |
1000 | ||
1001 | if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) { | |
96a9cc68 | 1002 | r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
87d1a50c | 1003 | } else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) { |
96a9cc68 | 1004 | r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
87d1a50c MA |
1005 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) { |
1006 | r = wl1273_fm_rds_off(radio); | |
1007 | } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) { | |
1008 | r = wl1273_fm_rds_on(radio); | |
1009 | } else { | |
1010 | dev_err(radio->dev, "%s: Unknown mode: %d\n", | |
1011 | __func__, new_mode); | |
1012 | r = -EINVAL; | |
1013 | } | |
1014 | ||
1015 | if (!r) | |
1016 | radio->rds_on = (new_mode == WL1273_RDS_ON) ? true : false; | |
1017 | ||
1018 | return r; | |
1019 | } | |
1020 | ||
1021 | static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf, | |
1022 | size_t count, loff_t *ppos) | |
1023 | { | |
1024 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
96a9cc68 | 1025 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1026 | u16 val; |
1027 | int r; | |
1028 | ||
1029 | dev_dbg(radio->dev, "%s\n", __func__); | |
1030 | ||
96a9cc68 | 1031 | if (core->mode != WL1273_MODE_TX) |
87d1a50c MA |
1032 | return count; |
1033 | ||
1034 | if (radio->rds_users == 0) { | |
1035 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1036 | return 0; | |
1037 | } | |
1038 | ||
96a9cc68 | 1039 | if (mutex_lock_interruptible(&core->lock)) |
87d1a50c MA |
1040 | return -EINTR; |
1041 | /* | |
1042 | * Multiple processes can open the device, but only | |
1043 | * one gets to write to it. | |
1044 | */ | |
1045 | if (radio->owner && radio->owner != file) { | |
1046 | r = -EBUSY; | |
1047 | goto out; | |
1048 | } | |
1049 | radio->owner = file; | |
1050 | ||
1051 | /* Manual Mode */ | |
1052 | if (count > 255) | |
1053 | val = 255; | |
1054 | else | |
1055 | val = count; | |
1056 | ||
96a9cc68 | 1057 | core->write(core, WL1273_RDS_CONFIG_DATA_SET, val); |
87d1a50c MA |
1058 | |
1059 | if (copy_from_user(radio->write_buf + 1, buf, val)) { | |
1060 | r = -EFAULT; | |
1061 | goto out; | |
1062 | } | |
1063 | ||
1064 | dev_dbg(radio->dev, "Count: %d\n", val); | |
1065 | dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf); | |
1066 | ||
1067 | radio->write_buf[0] = WL1273_RDS_DATA_SET; | |
96a9cc68 | 1068 | core->write_data(core, radio->write_buf, val + 1); |
87d1a50c MA |
1069 | |
1070 | r = val; | |
1071 | out: | |
96a9cc68 | 1072 | mutex_unlock(&core->lock); |
87d1a50c MA |
1073 | |
1074 | return r; | |
1075 | } | |
1076 | ||
1077 | static unsigned int wl1273_fm_fops_poll(struct file *file, | |
1078 | struct poll_table_struct *pts) | |
1079 | { | |
1080 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1081 | struct wl1273_core *core = radio->core; | |
1082 | ||
1083 | if (radio->owner && radio->owner != file) | |
1084 | return -EBUSY; | |
1085 | ||
1086 | radio->owner = file; | |
1087 | ||
1088 | if (core->mode == WL1273_MODE_RX) { | |
1089 | poll_wait(file, &radio->read_queue, pts); | |
1090 | ||
1091 | if (radio->rd_index != radio->wr_index) | |
1092 | return POLLIN | POLLRDNORM; | |
1093 | ||
1094 | } else if (core->mode == WL1273_MODE_TX) { | |
1095 | return POLLOUT | POLLWRNORM; | |
1096 | } | |
1097 | ||
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | static int wl1273_fm_fops_open(struct file *file) | |
1102 | { | |
1103 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1104 | struct wl1273_core *core = radio->core; | |
1105 | int r = 0; | |
1106 | ||
1107 | dev_dbg(radio->dev, "%s\n", __func__); | |
1108 | ||
1109 | if (core->mode == WL1273_MODE_RX && radio->rds_on && | |
1110 | !radio->rds_users) { | |
1111 | dev_dbg(radio->dev, "%s: Mode: %d\n", __func__, core->mode); | |
1112 | ||
1113 | if (mutex_lock_interruptible(&core->lock)) | |
1114 | return -EINTR; | |
1115 | ||
1116 | radio->irq_flags |= WL1273_RDS_EVENT; | |
1117 | ||
96a9cc68 MA |
1118 | r = core->write(core, WL1273_INT_MASK_SET, |
1119 | radio->irq_flags); | |
87d1a50c MA |
1120 | if (r) { |
1121 | mutex_unlock(&core->lock); | |
1122 | goto out; | |
1123 | } | |
1124 | ||
1125 | radio->rds_users++; | |
1126 | ||
1127 | mutex_unlock(&core->lock); | |
1128 | } | |
1129 | out: | |
1130 | return r; | |
1131 | } | |
1132 | ||
1133 | static int wl1273_fm_fops_release(struct file *file) | |
1134 | { | |
1135 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1136 | struct wl1273_core *core = radio->core; | |
1137 | int r = 0; | |
1138 | ||
1139 | dev_dbg(radio->dev, "%s\n", __func__); | |
1140 | ||
1141 | if (radio->rds_users > 0) { | |
1142 | radio->rds_users--; | |
1143 | if (radio->rds_users == 0) { | |
1144 | if (mutex_lock_interruptible(&core->lock)) | |
1145 | return -EINTR; | |
1146 | ||
1147 | radio->irq_flags &= ~WL1273_RDS_EVENT; | |
1148 | ||
1149 | if (core->mode == WL1273_MODE_RX) { | |
96a9cc68 MA |
1150 | r = core->write(core, |
1151 | WL1273_INT_MASK_SET, | |
1152 | radio->irq_flags); | |
87d1a50c MA |
1153 | if (r) { |
1154 | mutex_unlock(&core->lock); | |
1155 | goto out; | |
1156 | } | |
1157 | } | |
1158 | mutex_unlock(&core->lock); | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | if (file == radio->owner) | |
1163 | radio->owner = NULL; | |
1164 | out: | |
1165 | return r; | |
1166 | } | |
1167 | ||
1168 | static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf, | |
1169 | size_t count, loff_t *ppos) | |
1170 | { | |
1171 | int r = 0; | |
1172 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1173 | struct wl1273_core *core = radio->core; | |
1174 | unsigned int block_count = 0; | |
1175 | u16 val; | |
1176 | ||
1177 | dev_dbg(radio->dev, "%s\n", __func__); | |
1178 | ||
96a9cc68 | 1179 | if (core->mode != WL1273_MODE_RX) |
87d1a50c MA |
1180 | return 0; |
1181 | ||
1182 | if (radio->rds_users == 0) { | |
1183 | dev_warn(radio->dev, "%s: RDS not on.\n", __func__); | |
1184 | return 0; | |
1185 | } | |
1186 | ||
1187 | if (mutex_lock_interruptible(&core->lock)) | |
1188 | return -EINTR; | |
1189 | ||
1190 | /* | |
1191 | * Multiple processes can open the device, but only | |
1192 | * one at a time gets read access. | |
1193 | */ | |
1194 | if (radio->owner && radio->owner != file) { | |
1195 | r = -EBUSY; | |
1196 | goto out; | |
1197 | } | |
1198 | radio->owner = file; | |
1199 | ||
96a9cc68 | 1200 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1201 | if (r) { |
1202 | dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__); | |
1203 | goto out; | |
1204 | } else if (val == 0) { | |
1205 | dev_info(radio->dev, "RDS_SYNC: Not synchronized\n"); | |
1206 | r = -ENODATA; | |
1207 | goto out; | |
1208 | } | |
1209 | ||
1210 | /* block if no new data available */ | |
1211 | while (radio->wr_index == radio->rd_index) { | |
1212 | if (file->f_flags & O_NONBLOCK) { | |
1213 | r = -EWOULDBLOCK; | |
1214 | goto out; | |
1215 | } | |
1216 | ||
1217 | dev_dbg(radio->dev, "%s: Wait for RDS data.\n", __func__); | |
1218 | if (wait_event_interruptible(radio->read_queue, | |
1219 | radio->wr_index != | |
1220 | radio->rd_index) < 0) { | |
1221 | r = -EINTR; | |
1222 | goto out; | |
1223 | } | |
1224 | } | |
1225 | ||
1226 | /* calculate block count from byte count */ | |
1227 | count /= RDS_BLOCK_SIZE; | |
1228 | ||
1229 | /* copy RDS blocks from the internal buffer and to user buffer */ | |
1230 | while (block_count < count) { | |
1231 | if (radio->rd_index == radio->wr_index) | |
1232 | break; | |
1233 | ||
1234 | /* always transfer complete RDS blocks */ | |
1235 | if (copy_to_user(buf, &radio->buffer[radio->rd_index], | |
1236 | RDS_BLOCK_SIZE)) | |
1237 | break; | |
1238 | ||
1239 | /* increment and wrap the read pointer */ | |
1240 | radio->rd_index += RDS_BLOCK_SIZE; | |
1241 | if (radio->rd_index >= radio->buf_size) | |
1242 | radio->rd_index = 0; | |
1243 | ||
1244 | /* increment counters */ | |
1245 | block_count++; | |
1246 | buf += RDS_BLOCK_SIZE; | |
1247 | r += RDS_BLOCK_SIZE; | |
1248 | } | |
1249 | ||
1250 | out: | |
1251 | dev_dbg(radio->dev, "%s: exit\n", __func__); | |
1252 | mutex_unlock(&core->lock); | |
1253 | ||
1254 | return r; | |
1255 | } | |
1256 | ||
1257 | static const struct v4l2_file_operations wl1273_fops = { | |
1258 | .owner = THIS_MODULE, | |
1259 | .read = wl1273_fm_fops_read, | |
1260 | .write = wl1273_fm_fops_write, | |
1261 | .poll = wl1273_fm_fops_poll, | |
34b8fc8e | 1262 | .unlocked_ioctl = video_ioctl2, |
87d1a50c MA |
1263 | .open = wl1273_fm_fops_open, |
1264 | .release = wl1273_fm_fops_release, | |
1265 | }; | |
1266 | ||
1267 | static int wl1273_fm_vidioc_querycap(struct file *file, void *priv, | |
1268 | struct v4l2_capability *capability) | |
1269 | { | |
1270 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1271 | ||
1272 | dev_dbg(radio->dev, "%s\n", __func__); | |
1273 | ||
1274 | strlcpy(capability->driver, WL1273_FM_DRIVER_NAME, | |
1275 | sizeof(capability->driver)); | |
1276 | strlcpy(capability->card, "Texas Instruments Wl1273 FM Radio", | |
1277 | sizeof(capability->card)); | |
1278 | strlcpy(capability->bus_info, radio->bus_type, | |
1279 | sizeof(capability->bus_info)); | |
1280 | ||
1281 | capability->capabilities = V4L2_CAP_HW_FREQ_SEEK | | |
1282 | V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_AUDIO | | |
1283 | V4L2_CAP_RDS_CAPTURE | V4L2_CAP_MODULATOR | | |
1284 | V4L2_CAP_RDS_OUTPUT; | |
1285 | ||
1286 | return 0; | |
1287 | } | |
1288 | ||
1289 | static int wl1273_fm_vidioc_g_input(struct file *file, void *priv, | |
1290 | unsigned int *i) | |
1291 | { | |
1292 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1293 | ||
1294 | dev_dbg(radio->dev, "%s\n", __func__); | |
1295 | ||
1296 | *i = 0; | |
1297 | ||
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | static int wl1273_fm_vidioc_s_input(struct file *file, void *priv, | |
1302 | unsigned int i) | |
1303 | { | |
1304 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1305 | ||
1306 | dev_dbg(radio->dev, "%s\n", __func__); | |
1307 | ||
1308 | if (i != 0) | |
1309 | return -EINVAL; | |
1310 | ||
1311 | return 0; | |
1312 | } | |
1313 | ||
1314 | /** | |
1315 | * wl1273_fm_set_tx_power() - Set the transmission power value. | |
1316 | * @core: A pointer to the device struct. | |
1317 | * @power: The new power value. | |
1318 | */ | |
1319 | static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) | |
1320 | { | |
96a9cc68 | 1321 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1322 | int r; |
1323 | ||
96a9cc68 MA |
1324 | if (core->mode == WL1273_MODE_OFF || |
1325 | core->mode == WL1273_MODE_SUSPENDED) | |
87d1a50c MA |
1326 | return -EPERM; |
1327 | ||
96a9cc68 | 1328 | mutex_lock(&core->lock); |
87d1a50c MA |
1329 | |
1330 | /* Convert the dBuV value to chip presentation */ | |
96a9cc68 | 1331 | r = core->write(core, WL1273_POWER_LEV_SET, 122 - power); |
87d1a50c MA |
1332 | if (r) |
1333 | goto out; | |
1334 | ||
1335 | radio->tx_power = power; | |
1336 | ||
1337 | out: | |
96a9cc68 | 1338 | mutex_unlock(&core->lock); |
87d1a50c MA |
1339 | return r; |
1340 | } | |
1341 | ||
1342 | #define WL1273_SPACING_50kHz 1 | |
1343 | #define WL1273_SPACING_100kHz 2 | |
1344 | #define WL1273_SPACING_200kHz 4 | |
1345 | ||
1346 | static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio, | |
1347 | unsigned int spacing) | |
1348 | { | |
96a9cc68 | 1349 | struct wl1273_core *core = radio->core; |
87d1a50c MA |
1350 | int r; |
1351 | ||
1352 | if (spacing == 0) { | |
96a9cc68 MA |
1353 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1354 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1355 | radio->spacing = 100; |
1356 | } else if (spacing - 50000 < 25000) { | |
96a9cc68 MA |
1357 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1358 | WL1273_SPACING_50kHz); | |
87d1a50c MA |
1359 | radio->spacing = 50; |
1360 | } else if (spacing - 100000 < 50000) { | |
96a9cc68 MA |
1361 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1362 | WL1273_SPACING_100kHz); | |
87d1a50c MA |
1363 | radio->spacing = 100; |
1364 | } else { | |
96a9cc68 MA |
1365 | r = core->write(core, WL1273_SCAN_SPACING_SET, |
1366 | WL1273_SPACING_200kHz); | |
87d1a50c MA |
1367 | radio->spacing = 200; |
1368 | } | |
1369 | ||
1370 | return r; | |
1371 | } | |
1372 | ||
1373 | static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl) | |
1374 | { | |
1375 | struct wl1273_device *radio = ctrl->priv; | |
1376 | struct wl1273_core *core = radio->core; | |
1377 | ||
1378 | dev_dbg(radio->dev, "%s\n", __func__); | |
1379 | ||
1380 | if (mutex_lock_interruptible(&core->lock)) | |
1381 | return -EINTR; | |
1382 | ||
1383 | switch (ctrl->id) { | |
1384 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: | |
ddac5c10 | 1385 | ctrl->val = wl1273_fm_get_tx_ctune(radio); |
87d1a50c MA |
1386 | break; |
1387 | ||
1388 | default: | |
1389 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1390 | __func__, ctrl->id); | |
1391 | break; | |
1392 | } | |
1393 | ||
1394 | mutex_unlock(&core->lock); | |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
1399 | #define WL1273_MUTE_SOFT_ENABLE (1 << 0) | |
1400 | #define WL1273_MUTE_AC (1 << 1) | |
1401 | #define WL1273_MUTE_HARD_LEFT (1 << 2) | |
1402 | #define WL1273_MUTE_HARD_RIGHT (1 << 3) | |
1403 | #define WL1273_MUTE_SOFT_FORCE (1 << 4) | |
1404 | ||
1405 | static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl) | |
1406 | { | |
1407 | return container_of(ctrl->handler, struct wl1273_device, ctrl_handler); | |
1408 | } | |
1409 | ||
1410 | static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl) | |
1411 | { | |
1412 | struct wl1273_device *radio = to_radio(ctrl); | |
1413 | struct wl1273_core *core = radio->core; | |
1414 | int r = 0; | |
1415 | ||
1416 | dev_dbg(radio->dev, "%s\n", __func__); | |
1417 | ||
1418 | switch (ctrl->id) { | |
1419 | case V4L2_CID_AUDIO_MUTE: | |
1420 | if (mutex_lock_interruptible(&core->lock)) | |
1421 | return -EINTR; | |
1422 | ||
1423 | if (core->mode == WL1273_MODE_RX && ctrl->val) | |
96a9cc68 MA |
1424 | r = core->write(core, |
1425 | WL1273_MUTE_STATUS_SET, | |
1426 | WL1273_MUTE_HARD_LEFT | | |
1427 | WL1273_MUTE_HARD_RIGHT); | |
87d1a50c | 1428 | else if (core->mode == WL1273_MODE_RX) |
96a9cc68 MA |
1429 | r = core->write(core, |
1430 | WL1273_MUTE_STATUS_SET, 0x0); | |
87d1a50c | 1431 | else if (core->mode == WL1273_MODE_TX && ctrl->val) |
96a9cc68 | 1432 | r = core->write(core, WL1273_MUTE, 1); |
87d1a50c | 1433 | else if (core->mode == WL1273_MODE_TX) |
96a9cc68 | 1434 | r = core->write(core, WL1273_MUTE, 0); |
87d1a50c MA |
1435 | |
1436 | mutex_unlock(&core->lock); | |
1437 | break; | |
1438 | ||
1439 | case V4L2_CID_AUDIO_VOLUME: | |
1440 | if (ctrl->val == 0) | |
1441 | r = wl1273_fm_set_mode(radio, WL1273_MODE_OFF); | |
1442 | else | |
1443 | r = core->set_volume(core, core->volume); | |
1444 | break; | |
1445 | ||
1446 | case V4L2_CID_TUNE_PREEMPHASIS: | |
1447 | r = wl1273_fm_set_preemphasis(radio, ctrl->val); | |
1448 | break; | |
1449 | ||
1450 | case V4L2_CID_TUNE_POWER_LEVEL: | |
1451 | r = wl1273_fm_set_tx_power(radio, ctrl->val); | |
1452 | break; | |
1453 | ||
1454 | default: | |
1455 | dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", | |
1456 | __func__, ctrl->id); | |
1457 | break; | |
1458 | } | |
1459 | ||
1460 | dev_dbg(radio->dev, "%s\n", __func__); | |
1461 | return r; | |
1462 | } | |
1463 | ||
1464 | static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv, | |
1465 | struct v4l2_audio *audio) | |
1466 | { | |
1467 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1468 | ||
1469 | dev_dbg(radio->dev, "%s\n", __func__); | |
1470 | ||
1471 | if (audio->index > 1) | |
1472 | return -EINVAL; | |
1473 | ||
1474 | strlcpy(audio->name, "Radio", sizeof(audio->name)); | |
1475 | audio->capability = V4L2_AUDCAP_STEREO; | |
1476 | ||
1477 | return 0; | |
1478 | } | |
1479 | ||
1480 | static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv, | |
1481 | struct v4l2_audio *audio) | |
1482 | { | |
1483 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1484 | ||
1485 | dev_dbg(radio->dev, "%s\n", __func__); | |
1486 | ||
1487 | if (audio->index != 0) | |
1488 | return -EINVAL; | |
1489 | ||
1490 | return 0; | |
1491 | } | |
1492 | ||
1493 | #define WL1273_RDS_NOT_SYNCHRONIZED 0 | |
1494 | #define WL1273_RDS_SYNCHRONIZED 1 | |
1495 | ||
1496 | static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, | |
1497 | struct v4l2_tuner *tuner) | |
1498 | { | |
1499 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1500 | struct wl1273_core *core = radio->core; | |
1501 | u16 val; | |
1502 | int r; | |
1503 | ||
1504 | dev_dbg(radio->dev, "%s\n", __func__); | |
1505 | ||
1506 | if (tuner->index > 0) | |
1507 | return -EINVAL; | |
1508 | ||
1509 | strlcpy(tuner->name, WL1273_FM_DRIVER_NAME, sizeof(tuner->name)); | |
1510 | tuner->type = V4L2_TUNER_RADIO; | |
1511 | ||
1512 | tuner->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1513 | tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1514 | ||
1515 | tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
1516 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; | |
1517 | ||
1518 | if (radio->stereo) | |
1519 | tuner->audmode = V4L2_TUNER_MODE_STEREO; | |
1520 | else | |
1521 | tuner->audmode = V4L2_TUNER_MODE_MONO; | |
1522 | ||
1523 | if (core->mode != WL1273_MODE_RX) | |
1524 | return 0; | |
1525 | ||
1526 | if (mutex_lock_interruptible(&core->lock)) | |
1527 | return -EINTR; | |
1528 | ||
96a9cc68 | 1529 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1530 | if (r) |
1531 | goto out; | |
1532 | ||
1533 | if (val == 1) | |
1534 | tuner->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
1535 | else | |
1536 | tuner->rxsubchans = V4L2_TUNER_SUB_MONO; | |
1537 | ||
96a9cc68 | 1538 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1539 | if (r) |
1540 | goto out; | |
1541 | ||
1542 | tuner->signal = (s16) val; | |
1543 | dev_dbg(radio->dev, "Signal: %d\n", tuner->signal); | |
1544 | ||
1545 | tuner->afc = 0; | |
1546 | ||
96a9cc68 | 1547 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1548 | if (r) |
1549 | goto out; | |
1550 | ||
1551 | if (val == WL1273_RDS_SYNCHRONIZED) | |
1552 | tuner->rxsubchans |= V4L2_TUNER_SUB_RDS; | |
1553 | out: | |
1554 | mutex_unlock(&core->lock); | |
1555 | ||
1556 | return r; | |
1557 | } | |
1558 | ||
1559 | static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv, | |
1560 | struct v4l2_tuner *tuner) | |
1561 | { | |
1562 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1563 | struct wl1273_core *core = radio->core; | |
1564 | int r = 0; | |
1565 | ||
1566 | dev_dbg(radio->dev, "%s\n", __func__); | |
1567 | dev_dbg(radio->dev, "tuner->index: %d\n", tuner->index); | |
1568 | dev_dbg(radio->dev, "tuner->name: %s\n", tuner->name); | |
1569 | dev_dbg(radio->dev, "tuner->capability: 0x%04x\n", tuner->capability); | |
1570 | dev_dbg(radio->dev, "tuner->rxsubchans: 0x%04x\n", tuner->rxsubchans); | |
1571 | dev_dbg(radio->dev, "tuner->rangelow: %d\n", tuner->rangelow); | |
1572 | dev_dbg(radio->dev, "tuner->rangehigh: %d\n", tuner->rangehigh); | |
1573 | ||
1574 | if (tuner->index > 0) | |
1575 | return -EINVAL; | |
1576 | ||
1577 | if (mutex_lock_interruptible(&core->lock)) | |
1578 | return -EINTR; | |
1579 | ||
1580 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1581 | if (r) | |
1582 | goto out; | |
1583 | ||
1584 | if (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) | |
1585 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1586 | else | |
1587 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1588 | ||
1589 | if (r) | |
1590 | dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r); | |
1591 | ||
1592 | if (tuner->audmode == V4L2_TUNER_MODE_MONO) { | |
96a9cc68 | 1593 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO); |
87d1a50c MA |
1594 | if (r < 0) { |
1595 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1596 | __func__, r); | |
1597 | goto out; | |
1598 | } | |
1599 | radio->stereo = false; | |
1600 | } else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) { | |
96a9cc68 | 1601 | r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO); |
87d1a50c MA |
1602 | if (r < 0) { |
1603 | dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", | |
1604 | __func__, r); | |
1605 | goto out; | |
1606 | } | |
1607 | radio->stereo = true; | |
1608 | } else { | |
1609 | dev_err(radio->dev, "%s: tuner->audmode: %d\n", | |
1610 | __func__, tuner->audmode); | |
1611 | r = -EINVAL; | |
1612 | goto out; | |
1613 | } | |
1614 | ||
1615 | out: | |
1616 | mutex_unlock(&core->lock); | |
1617 | ||
1618 | return r; | |
1619 | } | |
1620 | ||
1621 | static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv, | |
1622 | struct v4l2_frequency *freq) | |
1623 | { | |
1624 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1625 | struct wl1273_core *core = radio->core; | |
1626 | ||
1627 | dev_dbg(radio->dev, "%s\n", __func__); | |
1628 | ||
1629 | if (mutex_lock_interruptible(&core->lock)) | |
1630 | return -EINTR; | |
1631 | ||
1632 | freq->type = V4L2_TUNER_RADIO; | |
1633 | freq->frequency = WL1273_FREQ(wl1273_fm_get_freq(radio)); | |
1634 | ||
1635 | mutex_unlock(&core->lock); | |
1636 | ||
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv, | |
1641 | struct v4l2_frequency *freq) | |
1642 | { | |
1643 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1644 | struct wl1273_core *core = radio->core; | |
1645 | int r; | |
1646 | ||
1647 | dev_dbg(radio->dev, "%s: %d\n", __func__, freq->frequency); | |
1648 | ||
1649 | if (freq->type != V4L2_TUNER_RADIO) { | |
1650 | dev_dbg(radio->dev, | |
1651 | "freq->type != V4L2_TUNER_RADIO: %d\n", freq->type); | |
1652 | return -EINVAL; | |
1653 | } | |
1654 | ||
1655 | if (mutex_lock_interruptible(&core->lock)) | |
1656 | return -EINTR; | |
1657 | ||
1658 | if (core->mode == WL1273_MODE_RX) { | |
1659 | dev_dbg(radio->dev, "freq: %d\n", freq->frequency); | |
1660 | ||
1661 | r = wl1273_fm_set_rx_freq(radio, | |
1662 | WL1273_INV_FREQ(freq->frequency)); | |
1663 | if (r) | |
1664 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1665 | ": set frequency failed with %d\n", r); | |
1666 | } else { | |
1667 | r = wl1273_fm_set_tx_freq(radio, | |
1668 | WL1273_INV_FREQ(freq->frequency)); | |
1669 | if (r) | |
1670 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1671 | ": set frequency failed with %d\n", r); | |
1672 | } | |
1673 | ||
1674 | mutex_unlock(&core->lock); | |
1675 | ||
1676 | dev_dbg(radio->dev, "wl1273_vidioc_s_frequency: DONE\n"); | |
1677 | return r; | |
1678 | } | |
1679 | ||
1680 | #define WL1273_DEFAULT_SEEK_LEVEL 7 | |
1681 | ||
1682 | static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv, | |
1683 | struct v4l2_hw_freq_seek *seek) | |
1684 | { | |
1685 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1686 | struct wl1273_core *core = radio->core; | |
1687 | int r; | |
1688 | ||
1689 | dev_dbg(radio->dev, "%s\n", __func__); | |
1690 | ||
1691 | if (seek->tuner != 0 || seek->type != V4L2_TUNER_RADIO) | |
1692 | return -EINVAL; | |
1693 | ||
1694 | if (mutex_lock_interruptible(&core->lock)) | |
1695 | return -EINTR; | |
1696 | ||
1697 | r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); | |
1698 | if (r) | |
1699 | goto out; | |
1700 | ||
1701 | r = wl1273_fm_tx_set_spacing(radio, seek->spacing); | |
1702 | if (r) | |
1703 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1704 | ||
1705 | r = wl1273_fm_set_seek(radio, seek->wrap_around, seek->seek_upward, | |
1706 | WL1273_DEFAULT_SEEK_LEVEL); | |
1707 | if (r) | |
1708 | dev_warn(radio->dev, "HW seek failed: %d\n", r); | |
1709 | ||
1710 | out: | |
1711 | mutex_unlock(&core->lock); | |
1712 | return r; | |
1713 | } | |
1714 | ||
1715 | static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv, | |
1716 | struct v4l2_modulator *modulator) | |
1717 | { | |
1718 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1719 | struct wl1273_core *core = radio->core; | |
1720 | int r = 0; | |
1721 | ||
1722 | dev_dbg(radio->dev, "%s\n", __func__); | |
1723 | ||
1724 | if (modulator->index > 0) | |
1725 | return -EINVAL; | |
1726 | ||
1727 | if (mutex_lock_interruptible(&core->lock)) | |
1728 | return -EINTR; | |
1729 | ||
1730 | r = wl1273_fm_set_mode(radio, WL1273_MODE_TX); | |
1731 | if (r) | |
1732 | goto out; | |
1733 | ||
1734 | if (modulator->txsubchans & V4L2_TUNER_SUB_RDS) | |
1735 | r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); | |
1736 | else | |
1737 | r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); | |
1738 | ||
1739 | if (modulator->txsubchans & V4L2_TUNER_SUB_MONO) | |
96a9cc68 | 1740 | r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO); |
87d1a50c | 1741 | else |
96a9cc68 MA |
1742 | r = core->write(core, WL1273_MONO_SET, |
1743 | WL1273_RX_STEREO); | |
87d1a50c MA |
1744 | if (r < 0) |
1745 | dev_warn(radio->dev, WL1273_FM_DRIVER_NAME | |
1746 | "MONO_SET fails: %d\n", r); | |
1747 | out: | |
1748 | mutex_unlock(&core->lock); | |
1749 | ||
1750 | return r; | |
1751 | } | |
1752 | ||
1753 | static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv, | |
1754 | struct v4l2_modulator *modulator) | |
1755 | { | |
1756 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1757 | struct wl1273_core *core = radio->core; | |
1758 | u16 val; | |
1759 | int r; | |
1760 | ||
1761 | dev_dbg(radio->dev, "%s\n", __func__); | |
1762 | ||
1763 | strlcpy(modulator->name, WL1273_FM_DRIVER_NAME, | |
1764 | sizeof(modulator->name)); | |
1765 | ||
1766 | modulator->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); | |
1767 | modulator->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); | |
1768 | ||
1769 | modulator->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | | |
1770 | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; | |
1771 | ||
1772 | if (core->mode != WL1273_MODE_TX) | |
1773 | return 0; | |
1774 | ||
1775 | if (mutex_lock_interruptible(&core->lock)) | |
1776 | return -EINTR; | |
1777 | ||
96a9cc68 | 1778 | r = core->read(core, WL1273_MONO_SET, &val); |
87d1a50c MA |
1779 | if (r) |
1780 | goto out; | |
1781 | ||
1782 | if (val == WL1273_TX_STEREO) | |
1783 | modulator->txsubchans = V4L2_TUNER_SUB_STEREO; | |
1784 | else | |
1785 | modulator->txsubchans = V4L2_TUNER_SUB_MONO; | |
1786 | ||
1787 | if (radio->rds_on) | |
1788 | modulator->txsubchans |= V4L2_TUNER_SUB_RDS; | |
1789 | out: | |
1790 | mutex_unlock(&core->lock); | |
1791 | ||
1792 | return 0; | |
1793 | } | |
1794 | ||
1795 | static int wl1273_fm_vidioc_log_status(struct file *file, void *priv) | |
1796 | { | |
1797 | struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); | |
1798 | struct wl1273_core *core = radio->core; | |
1799 | struct device *dev = radio->dev; | |
1800 | u16 val; | |
1801 | int r; | |
1802 | ||
1803 | dev_info(dev, DRIVER_DESC); | |
1804 | ||
1805 | if (core->mode == WL1273_MODE_OFF) { | |
1806 | dev_info(dev, "Mode: Off\n"); | |
1807 | return 0; | |
1808 | } | |
1809 | ||
1810 | if (core->mode == WL1273_MODE_SUSPENDED) { | |
1811 | dev_info(dev, "Mode: Suspended\n"); | |
1812 | return 0; | |
1813 | } | |
1814 | ||
96a9cc68 | 1815 | r = core->read(core, WL1273_ASIC_ID_GET, &val); |
87d1a50c MA |
1816 | if (r) |
1817 | dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__); | |
1818 | else | |
1819 | dev_info(dev, "ASIC_ID: 0x%04x\n", val); | |
1820 | ||
96a9cc68 | 1821 | r = core->read(core, WL1273_ASIC_VER_GET, &val); |
87d1a50c MA |
1822 | if (r) |
1823 | dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__); | |
1824 | else | |
1825 | dev_info(dev, "ASIC Version: 0x%04x\n", val); | |
1826 | ||
96a9cc68 | 1827 | r = core->read(core, WL1273_FIRM_VER_GET, &val); |
87d1a50c MA |
1828 | if (r) |
1829 | dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__); | |
1830 | else | |
1831 | dev_info(dev, "FW version: %d(0x%04x)\n", val, val); | |
1832 | ||
96a9cc68 | 1833 | r = core->read(core, WL1273_BAND_SET, &val); |
87d1a50c MA |
1834 | if (r) |
1835 | dev_err(dev, "%s: Get BAND fails.\n", __func__); | |
1836 | else | |
1837 | dev_info(dev, "BAND: %d\n", val); | |
1838 | ||
1839 | if (core->mode == WL1273_MODE_TX) { | |
96a9cc68 | 1840 | r = core->read(core, WL1273_PUPD_SET, &val); |
87d1a50c MA |
1841 | if (r) |
1842 | dev_err(dev, "%s: Get PUPD fails.\n", __func__); | |
1843 | else | |
1844 | dev_info(dev, "PUPD: 0x%04x\n", val); | |
1845 | ||
96a9cc68 | 1846 | r = core->read(core, WL1273_CHANL_SET, &val); |
87d1a50c MA |
1847 | if (r) |
1848 | dev_err(dev, "%s: Get CHANL fails.\n", __func__); | |
1849 | else | |
1850 | dev_info(dev, "Tx frequency: %dkHz\n", val*10); | |
1851 | } else if (core->mode == WL1273_MODE_RX) { | |
1852 | int bf = radio->rangelow; | |
1853 | ||
96a9cc68 | 1854 | r = core->read(core, WL1273_FREQ_SET, &val); |
87d1a50c MA |
1855 | if (r) |
1856 | dev_err(dev, "%s: Get FREQ fails.\n", __func__); | |
1857 | else | |
1858 | dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50); | |
1859 | ||
96a9cc68 | 1860 | r = core->read(core, WL1273_MOST_MODE_SET, &val); |
87d1a50c MA |
1861 | if (r) |
1862 | dev_err(dev, "%s: Get MOST_MODE fails.\n", | |
1863 | __func__); | |
1864 | else if (val == 0) | |
1865 | dev_info(dev, "MOST_MODE: Stereo according to blend\n"); | |
1866 | else if (val == 1) | |
1867 | dev_info(dev, "MOST_MODE: Force mono output\n"); | |
1868 | else | |
1869 | dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val); | |
1870 | ||
96a9cc68 | 1871 | r = core->read(core, WL1273_MOST_BLEND_SET, &val); |
87d1a50c MA |
1872 | if (r) |
1873 | dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__); | |
1874 | else if (val == 0) | |
1875 | dev_info(dev, | |
1876 | "MOST_BLEND: Switched blend & hysteresis.\n"); | |
1877 | else if (val == 1) | |
1878 | dev_info(dev, "MOST_BLEND: Soft blend.\n"); | |
1879 | else | |
1880 | dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val); | |
1881 | ||
96a9cc68 | 1882 | r = core->read(core, WL1273_STEREO_GET, &val); |
87d1a50c MA |
1883 | if (r) |
1884 | dev_err(dev, "%s: Get STEREO fails.\n", __func__); | |
1885 | else if (val == 0) | |
1886 | dev_info(dev, "STEREO: Not detected\n"); | |
1887 | else if (val == 1) | |
1888 | dev_info(dev, "STEREO: Detected\n"); | |
1889 | else | |
1890 | dev_info(dev, "STEREO: Unexpected value: %d\n", val); | |
1891 | ||
96a9cc68 | 1892 | r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
87d1a50c MA |
1893 | if (r) |
1894 | dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__); | |
1895 | else | |
1896 | dev_info(dev, "RX signal strength: %d\n", (s16) val); | |
1897 | ||
96a9cc68 | 1898 | r = core->read(core, WL1273_POWER_SET, &val); |
87d1a50c MA |
1899 | if (r) |
1900 | dev_err(dev, "%s: Get POWER fails.\n", __func__); | |
1901 | else | |
1902 | dev_info(dev, "POWER: 0x%04x\n", val); | |
1903 | ||
96a9cc68 | 1904 | r = core->read(core, WL1273_INT_MASK_SET, &val); |
87d1a50c MA |
1905 | if (r) |
1906 | dev_err(dev, "%s: Get INT_MASK fails.\n", __func__); | |
1907 | else | |
1908 | dev_info(dev, "INT_MASK: 0x%04x\n", val); | |
1909 | ||
96a9cc68 | 1910 | r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
87d1a50c MA |
1911 | if (r) |
1912 | dev_err(dev, "%s: Get RDS_SYNC fails.\n", | |
1913 | __func__); | |
1914 | else if (val == 0) | |
1915 | dev_info(dev, "RDS_SYNC: Not synchronized\n"); | |
1916 | ||
1917 | else if (val == 1) | |
1918 | dev_info(dev, "RDS_SYNC: Synchronized\n"); | |
1919 | else | |
1920 | dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val); | |
1921 | ||
96a9cc68 | 1922 | r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val); |
87d1a50c MA |
1923 | if (r) |
1924 | dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n", | |
1925 | __func__); | |
1926 | else | |
1927 | dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val); | |
1928 | ||
96a9cc68 | 1929 | r = core->read(core, WL1273_VOLUME_SET, &val); |
87d1a50c MA |
1930 | if (r) |
1931 | dev_err(dev, "%s: Get VOLUME fails.\n", __func__); | |
1932 | else | |
1933 | dev_info(dev, "VOLUME: 0x%04x\n", val); | |
1934 | } | |
1935 | ||
1936 | return 0; | |
1937 | } | |
1938 | ||
1939 | static void wl1273_vdev_release(struct video_device *dev) | |
1940 | { | |
1941 | } | |
1942 | ||
1943 | static const struct v4l2_ctrl_ops wl1273_ctrl_ops = { | |
1944 | .s_ctrl = wl1273_fm_vidioc_s_ctrl, | |
1945 | .g_volatile_ctrl = wl1273_fm_g_volatile_ctrl, | |
1946 | }; | |
1947 | ||
1948 | static const struct v4l2_ioctl_ops wl1273_ioctl_ops = { | |
1949 | .vidioc_querycap = wl1273_fm_vidioc_querycap, | |
1950 | .vidioc_g_input = wl1273_fm_vidioc_g_input, | |
1951 | .vidioc_s_input = wl1273_fm_vidioc_s_input, | |
1952 | .vidioc_g_audio = wl1273_fm_vidioc_g_audio, | |
1953 | .vidioc_s_audio = wl1273_fm_vidioc_s_audio, | |
1954 | .vidioc_g_tuner = wl1273_fm_vidioc_g_tuner, | |
1955 | .vidioc_s_tuner = wl1273_fm_vidioc_s_tuner, | |
1956 | .vidioc_g_frequency = wl1273_fm_vidioc_g_frequency, | |
1957 | .vidioc_s_frequency = wl1273_fm_vidioc_s_frequency, | |
1958 | .vidioc_s_hw_freq_seek = wl1273_fm_vidioc_s_hw_freq_seek, | |
1959 | .vidioc_g_modulator = wl1273_fm_vidioc_g_modulator, | |
1960 | .vidioc_s_modulator = wl1273_fm_vidioc_s_modulator, | |
1961 | .vidioc_log_status = wl1273_fm_vidioc_log_status, | |
1962 | }; | |
1963 | ||
1964 | static struct video_device wl1273_viddev_template = { | |
1965 | .fops = &wl1273_fops, | |
1966 | .ioctl_ops = &wl1273_ioctl_ops, | |
1967 | .name = WL1273_FM_DRIVER_NAME, | |
1968 | .release = wl1273_vdev_release, | |
1969 | }; | |
1970 | ||
1971 | static int wl1273_fm_radio_remove(struct platform_device *pdev) | |
1972 | { | |
1973 | struct wl1273_device *radio = platform_get_drvdata(pdev); | |
1974 | struct wl1273_core *core = radio->core; | |
1975 | ||
1976 | dev_info(&pdev->dev, "%s.\n", __func__); | |
1977 | ||
1978 | free_irq(core->client->irq, radio); | |
1979 | core->pdata->free_resources(); | |
1980 | ||
1981 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
1982 | video_unregister_device(&radio->videodev); | |
1983 | v4l2_device_unregister(&radio->v4l2dev); | |
1984 | kfree(radio->buffer); | |
1985 | kfree(radio->write_buf); | |
1986 | kfree(radio); | |
1987 | ||
1988 | return 0; | |
1989 | } | |
1990 | ||
1991 | static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) | |
1992 | { | |
9e554696 | 1993 | struct wl1273_core **core = pdev->dev.platform_data; |
87d1a50c MA |
1994 | struct wl1273_device *radio; |
1995 | struct v4l2_ctrl *ctrl; | |
1996 | int r = 0; | |
1997 | ||
1998 | pr_debug("%s\n", __func__); | |
1999 | ||
2000 | if (!core) { | |
2001 | dev_err(&pdev->dev, "No platform data.\n"); | |
2002 | r = -EINVAL; | |
2003 | goto pdata_err; | |
2004 | } | |
2005 | ||
2006 | radio = kzalloc(sizeof(*radio), GFP_KERNEL); | |
2007 | if (!radio) { | |
2008 | r = -ENOMEM; | |
2009 | goto pdata_err; | |
2010 | } | |
2011 | ||
2012 | /* RDS buffer allocation */ | |
2013 | radio->buf_size = rds_buf * RDS_BLOCK_SIZE; | |
2014 | radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL); | |
2015 | if (!radio->buffer) { | |
2016 | pr_err("Cannot allocate memory for RDS buffer.\n"); | |
2017 | r = -ENOMEM; | |
2018 | goto err_kmalloc; | |
2019 | } | |
2020 | ||
2021 | radio->core = *core; | |
2022 | radio->irq_flags = WL1273_IRQ_MASK; | |
2023 | radio->dev = &radio->core->client->dev; | |
2024 | radio->rds_on = false; | |
2025 | radio->core->mode = WL1273_MODE_OFF; | |
2026 | radio->tx_power = 118; | |
2027 | radio->core->audio_mode = WL1273_AUDIO_ANALOG; | |
2028 | radio->band = WL1273_BAND_OTHER; | |
2029 | radio->core->i2s_mode = WL1273_I2S_DEF_MODE; | |
2030 | radio->core->channel_number = 2; | |
2031 | radio->core->volume = WL1273_DEFAULT_VOLUME; | |
2032 | radio->rx_frequency = WL1273_BAND_OTHER_LOW; | |
2033 | radio->tx_frequency = WL1273_BAND_OTHER_HIGH; | |
2034 | radio->rangelow = WL1273_BAND_OTHER_LOW; | |
2035 | radio->rangehigh = WL1273_BAND_OTHER_HIGH; | |
2036 | radio->stereo = true; | |
2037 | radio->bus_type = "I2C"; | |
2038 | ||
87d1a50c MA |
2039 | if (radio->core->pdata->request_resources) { |
2040 | r = radio->core->pdata->request_resources(radio->core->client); | |
2041 | if (r) { | |
2042 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2043 | ": Cannot get platform data\n"); | |
2044 | goto err_resources; | |
2045 | } | |
2046 | ||
2047 | dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq); | |
2048 | ||
2049 | r = request_threaded_irq(radio->core->client->irq, NULL, | |
2050 | wl1273_fm_irq_thread_handler, | |
2051 | IRQF_ONESHOT | IRQF_TRIGGER_FALLING, | |
2052 | "wl1273-fm", radio); | |
2053 | if (r < 0) { | |
2054 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME | |
2055 | ": Unable to register IRQ handler: %d\n", r); | |
2056 | goto err_request_irq; | |
2057 | } | |
2058 | } else { | |
2059 | dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ" | |
2060 | " not configured"); | |
2061 | r = -EINVAL; | |
2062 | goto err_resources; | |
2063 | } | |
2064 | ||
2065 | init_completion(&radio->busy); | |
2066 | init_waitqueue_head(&radio->read_queue); | |
2067 | ||
2068 | radio->write_buf = kmalloc(256, GFP_KERNEL); | |
2069 | if (!radio->write_buf) { | |
2070 | r = -ENOMEM; | |
2071 | goto write_buf_err; | |
2072 | } | |
2073 | ||
2074 | radio->dev = &pdev->dev; | |
2075 | radio->v4l2dev.ctrl_handler = &radio->ctrl_handler; | |
2076 | radio->rds_users = 0; | |
2077 | ||
2078 | r = v4l2_device_register(&pdev->dev, &radio->v4l2dev); | |
2079 | if (r) { | |
2080 | dev_err(&pdev->dev, "Cannot register v4l2_device.\n"); | |
2081 | goto device_register_err; | |
2082 | } | |
2083 | ||
2084 | /* V4L2 configuration */ | |
2085 | memcpy(&radio->videodev, &wl1273_viddev_template, | |
2086 | sizeof(wl1273_viddev_template)); | |
2087 | ||
2088 | radio->videodev.v4l2_dev = &radio->v4l2dev; | |
2089 | ||
2090 | v4l2_ctrl_handler_init(&radio->ctrl_handler, 6); | |
2091 | ||
2092 | /* add in ascending ID order */ | |
2093 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2094 | V4L2_CID_AUDIO_VOLUME, 0, WL1273_MAX_VOLUME, 1, | |
2095 | WL1273_DEFAULT_VOLUME); | |
2096 | ||
2097 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2098 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); | |
2099 | ||
2100 | v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2101 | V4L2_CID_TUNE_PREEMPHASIS, | |
2102 | V4L2_PREEMPHASIS_75_uS, 0x03, | |
2103 | V4L2_PREEMPHASIS_50_uS); | |
2104 | ||
2105 | v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2106 | V4L2_CID_TUNE_POWER_LEVEL, 91, 122, 1, 118); | |
2107 | ||
2108 | ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, | |
2109 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, | |
2110 | 0, 255, 1, 255); | |
2111 | if (ctrl) | |
2112 | ctrl->is_volatile = 1; | |
2113 | ||
2114 | if (radio->ctrl_handler.error) { | |
2115 | r = radio->ctrl_handler.error; | |
2116 | dev_err(&pdev->dev, "Ctrl handler error: %d\n", r); | |
2117 | goto handler_init_err; | |
2118 | } | |
2119 | ||
2120 | video_set_drvdata(&radio->videodev, radio); | |
2121 | platform_set_drvdata(pdev, radio); | |
2122 | ||
2123 | /* register video device */ | |
2124 | r = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr); | |
2125 | if (r) { | |
2126 | dev_err(&pdev->dev, WL1273_FM_DRIVER_NAME | |
2127 | ": Could not register video device\n"); | |
2128 | goto handler_init_err; | |
2129 | } | |
2130 | ||
2131 | return 0; | |
2132 | ||
2133 | handler_init_err: | |
2134 | v4l2_ctrl_handler_free(&radio->ctrl_handler); | |
2135 | v4l2_device_unregister(&radio->v4l2dev); | |
2136 | device_register_err: | |
2137 | kfree(radio->write_buf); | |
2138 | write_buf_err: | |
2139 | free_irq(radio->core->client->irq, radio); | |
2140 | err_request_irq: | |
2141 | radio->core->pdata->free_resources(); | |
2142 | err_resources: | |
2143 | kfree(radio->buffer); | |
2144 | err_kmalloc: | |
2145 | kfree(radio); | |
2146 | pdata_err: | |
2147 | return r; | |
2148 | } | |
2149 | ||
2150 | MODULE_ALIAS("platform:wl1273_fm_radio"); | |
2151 | ||
2152 | static struct platform_driver wl1273_fm_radio_driver = { | |
2153 | .probe = wl1273_fm_radio_probe, | |
2154 | .remove = __devexit_p(wl1273_fm_radio_remove), | |
2155 | .driver = { | |
2156 | .name = "wl1273_fm_radio", | |
2157 | .owner = THIS_MODULE, | |
2158 | }, | |
2159 | }; | |
2160 | ||
2161 | static int __init wl1273_fm_module_init(void) | |
2162 | { | |
2163 | pr_info("%s\n", __func__); | |
2164 | return platform_driver_register(&wl1273_fm_radio_driver); | |
2165 | } | |
2166 | module_init(wl1273_fm_module_init); | |
2167 | ||
2168 | static void __exit wl1273_fm_module_exit(void) | |
2169 | { | |
87d1a50c MA |
2170 | platform_driver_unregister(&wl1273_fm_radio_driver); |
2171 | pr_info(DRIVER_DESC ", Exiting.\n"); | |
2172 | } | |
2173 | module_exit(wl1273_fm_module_exit); | |
2174 | ||
2175 | MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>"); | |
2176 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2177 | MODULE_LICENSE("GPL"); |