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