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