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20#include <linux/init.h>
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/platform_device.h>
24#include <linux/delay.h>
25#include <linux/slab.h>
26#include <linux/of.h>
27#include <linux/of_platform.h>
28#include <linux/of_address.h>
29#include <linux/clk.h>
30#include <linux/regmap.h>
31#include <linux/gpio/consumer.h>
32
33#include <sound/core.h>
34#include <sound/pcm.h>
35#include <sound/pcm_params.h>
36#include <sound/soc.h>
37#include <sound/tlv.h>
38#include <sound/initval.h>
39#include <sound/dmaengine_pcm.h>
40
41
42#define SUN4I_CODEC_DAC_DPC (0x00)
43#define SUN4I_CODEC_DAC_DPC_EN_DA (31)
44#define SUN4I_CODEC_DAC_DPC_DVOL (12)
45#define SUN4I_CODEC_DAC_FIFOC (0x04)
46#define SUN4I_CODEC_DAC_FIFOC_DAC_FS (29)
47#define SUN4I_CODEC_DAC_FIFOC_FIR_VERSION (28)
48#define SUN4I_CODEC_DAC_FIFOC_SEND_LASAT (26)
49#define SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE (24)
50#define SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT (21)
51#define SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL (8)
52#define SUN4I_CODEC_DAC_FIFOC_MONO_EN (6)
53#define SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS (5)
54#define SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN (4)
55#define SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH (0)
56#define SUN4I_CODEC_DAC_FIFOS (0x08)
57#define SUN4I_CODEC_DAC_TXDATA (0x0c)
58#define SUN4I_CODEC_DAC_ACTL (0x10)
59#define SUN4I_CODEC_DAC_ACTL_DACAENR (31)
60#define SUN4I_CODEC_DAC_ACTL_DACAENL (30)
61#define SUN4I_CODEC_DAC_ACTL_MIXEN (29)
62#define SUN4I_CODEC_DAC_ACTL_LDACLMIXS (15)
63#define SUN4I_CODEC_DAC_ACTL_RDACRMIXS (14)
64#define SUN4I_CODEC_DAC_ACTL_LDACRMIXS (13)
65#define SUN4I_CODEC_DAC_ACTL_DACPAS (8)
66#define SUN4I_CODEC_DAC_ACTL_MIXPAS (7)
67#define SUN4I_CODEC_DAC_ACTL_PA_MUTE (6)
68#define SUN4I_CODEC_DAC_ACTL_PA_VOL (0)
69#define SUN4I_CODEC_DAC_TUNE (0x14)
70#define SUN4I_CODEC_DAC_DEBUG (0x18)
71
72
73#define SUN4I_CODEC_ADC_FIFOC (0x1c)
74#define SUN4I_CODEC_ADC_FIFOC_ADC_FS (29)
75#define SUN4I_CODEC_ADC_FIFOC_EN_AD (28)
76#define SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE (24)
77#define SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL (8)
78#define SUN4I_CODEC_ADC_FIFOC_MONO_EN (7)
79#define SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS (6)
80#define SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN (4)
81#define SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH (0)
82#define SUN4I_CODEC_ADC_FIFOS (0x20)
83#define SUN4I_CODEC_ADC_RXDATA (0x24)
84#define SUN4I_CODEC_ADC_ACTL (0x28)
85#define SUN4I_CODEC_ADC_ACTL_ADC_R_EN (31)
86#define SUN4I_CODEC_ADC_ACTL_ADC_L_EN (30)
87#define SUN4I_CODEC_ADC_ACTL_PREG1EN (29)
88#define SUN4I_CODEC_ADC_ACTL_PREG2EN (28)
89#define SUN4I_CODEC_ADC_ACTL_VMICEN (27)
90#define SUN4I_CODEC_ADC_ACTL_VADCG (20)
91#define SUN4I_CODEC_ADC_ACTL_ADCIS (17)
92#define SUN4I_CODEC_ADC_ACTL_PA_EN (4)
93#define SUN4I_CODEC_ADC_ACTL_DDE (3)
94#define SUN4I_CODEC_ADC_DEBUG (0x2c)
95
96
97#define SUN4I_CODEC_DAC_TXCNT (0x30)
98#define SUN4I_CODEC_ADC_RXCNT (0x34)
99#define SUN4I_CODEC_AC_SYS_VERI (0x38)
100#define SUN4I_CODEC_AC_MIC_PHONE_CAL (0x3c)
101
102struct sun4i_codec {
103 struct device *dev;
104 struct regmap *regmap;
105 struct clk *clk_apb;
106 struct clk *clk_module;
107 struct gpio_desc *gpio_pa;
108
109 struct snd_dmaengine_dai_dma_data capture_dma_data;
110 struct snd_dmaengine_dai_dma_data playback_dma_data;
111};
112
113static void sun4i_codec_start_playback(struct sun4i_codec *scodec)
114{
115
116 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
117 BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
118 BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH));
119
120
121 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
122 BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
123 BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN));
124}
125
126static void sun4i_codec_stop_playback(struct sun4i_codec *scodec)
127{
128
129 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
130 BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
131 0);
132}
133
134static void sun4i_codec_start_capture(struct sun4i_codec *scodec)
135{
136
137 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
138 BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN),
139 BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN));
140}
141
142static void sun4i_codec_stop_capture(struct sun4i_codec *scodec)
143{
144
145 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
146 BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), 0);
147}
148
149static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd,
150 struct snd_soc_dai *dai)
151{
152 struct snd_soc_pcm_runtime *rtd = substream->private_data;
153 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
154
155 switch (cmd) {
156 case SNDRV_PCM_TRIGGER_START:
157 case SNDRV_PCM_TRIGGER_RESUME:
158 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
159 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
160 sun4i_codec_start_playback(scodec);
161 else
162 sun4i_codec_start_capture(scodec);
163 break;
164
165 case SNDRV_PCM_TRIGGER_STOP:
166 case SNDRV_PCM_TRIGGER_SUSPEND:
167 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
168 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
169 sun4i_codec_stop_playback(scodec);
170 else
171 sun4i_codec_stop_capture(scodec);
172 break;
173
174 default:
175 return -EINVAL;
176 }
177
178 return 0;
179}
180
181static int sun4i_codec_prepare_capture(struct snd_pcm_substream *substream,
182 struct snd_soc_dai *dai)
183{
184 struct snd_soc_pcm_runtime *rtd = substream->private_data;
185 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
186
187
188
189 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
190 BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH),
191 BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH));
192
193
194
195 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
196 0xf << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL,
197 0x7 << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL);
198
199
200
201
202
203
204 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_ACTL,
205 0x3 << 25,
206 0x1 << 25);
207
208 if (of_device_is_compatible(scodec->dev->of_node,
209 "allwinner,sun7i-a20-codec"))
210
211 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_TUNE,
212 0x3 << 8,
213 0x1 << 8);
214
215
216 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
217 BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE),
218 BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE));
219
220 return 0;
221}
222
223static int sun4i_codec_prepare_playback(struct snd_pcm_substream *substream,
224 struct snd_soc_dai *dai)
225{
226 struct snd_soc_pcm_runtime *rtd = substream->private_data;
227 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
228 u32 val;
229
230
231 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
232 BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
233 BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH));
234
235
236 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
237 0x3f << SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL,
238 0xf << SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL);
239
240 if (substream->runtime->rate > 32000)
241
242 val = 0;
243 else
244
245 val = BIT(SUN4I_CODEC_DAC_FIFOC_FIR_VERSION);
246
247 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
248 BIT(SUN4I_CODEC_DAC_FIFOC_FIR_VERSION),
249 val);
250
251
252 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
253 BIT(SUN4I_CODEC_DAC_FIFOC_SEND_LASAT),
254 0);
255
256 return 0;
257};
258
259static int sun4i_codec_prepare(struct snd_pcm_substream *substream,
260 struct snd_soc_dai *dai)
261{
262 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
263 return sun4i_codec_prepare_playback(substream, dai);
264
265 return sun4i_codec_prepare_capture(substream, dai);
266}
267
268static unsigned long sun4i_codec_get_mod_freq(struct snd_pcm_hw_params *params)
269{
270 unsigned int rate = params_rate(params);
271
272 switch (rate) {
273 case 176400:
274 case 88200:
275 case 44100:
276 case 33075:
277 case 22050:
278 case 14700:
279 case 11025:
280 case 7350:
281 return 22579200;
282
283 case 192000:
284 case 96000:
285 case 48000:
286 case 32000:
287 case 24000:
288 case 16000:
289 case 12000:
290 case 8000:
291 return 24576000;
292
293 default:
294 return 0;
295 }
296}
297
298static int sun4i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
299{
300 unsigned int rate = params_rate(params);
301
302 switch (rate) {
303 case 192000:
304 case 176400:
305 return 6;
306
307 case 96000:
308 case 88200:
309 return 7;
310
311 case 48000:
312 case 44100:
313 return 0;
314
315 case 32000:
316 case 33075:
317 return 1;
318
319 case 24000:
320 case 22050:
321 return 2;
322
323 case 16000:
324 case 14700:
325 return 3;
326
327 case 12000:
328 case 11025:
329 return 4;
330
331 case 8000:
332 case 7350:
333 return 5;
334
335 default:
336 return -EINVAL;
337 }
338}
339
340static int sun4i_codec_hw_params_capture(struct sun4i_codec *scodec,
341 struct snd_pcm_hw_params *params,
342 unsigned int hwrate)
343{
344
345 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
346 7 << SUN4I_CODEC_ADC_FIFOC_ADC_FS,
347 hwrate << SUN4I_CODEC_ADC_FIFOC_ADC_FS);
348
349
350 if (params_channels(params) == 1)
351 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
352 BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN),
353 BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN));
354 else
355 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
356 BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN), 0);
357
358 return 0;
359}
360
361static int sun4i_codec_hw_params_playback(struct sun4i_codec *scodec,
362 struct snd_pcm_hw_params *params,
363 unsigned int hwrate)
364{
365 u32 val;
366
367
368 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
369 7 << SUN4I_CODEC_DAC_FIFOC_DAC_FS,
370 hwrate << SUN4I_CODEC_DAC_FIFOC_DAC_FS);
371
372
373 if (params_channels(params) == 1)
374 val = BIT(SUN4I_CODEC_DAC_FIFOC_MONO_EN);
375 else
376 val = 0;
377
378 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
379 BIT(SUN4I_CODEC_DAC_FIFOC_MONO_EN),
380 val);
381
382
383 if (hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min == 32) {
384 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
385 BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS),
386 BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS));
387
388
389 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
390 BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE),
391 0);
392
393 scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
394 } else {
395 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
396 BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS),
397 0);
398
399
400 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
401 BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE),
402 BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE));
403
404 scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
405 }
406
407 return 0;
408}
409
410static int sun4i_codec_hw_params(struct snd_pcm_substream *substream,
411 struct snd_pcm_hw_params *params,
412 struct snd_soc_dai *dai)
413{
414 struct snd_soc_pcm_runtime *rtd = substream->private_data;
415 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
416 unsigned long clk_freq;
417 int ret, hwrate;
418
419 clk_freq = sun4i_codec_get_mod_freq(params);
420 if (!clk_freq)
421 return -EINVAL;
422
423 ret = clk_set_rate(scodec->clk_module, clk_freq);
424 if (ret)
425 return ret;
426
427 hwrate = sun4i_codec_get_hw_rate(params);
428 if (hwrate < 0)
429 return hwrate;
430
431 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
432 return sun4i_codec_hw_params_playback(scodec, params,
433 hwrate);
434
435 return sun4i_codec_hw_params_capture(scodec, params,
436 hwrate);
437}
438
439static int sun4i_codec_startup(struct snd_pcm_substream *substream,
440 struct snd_soc_dai *dai)
441{
442 struct snd_soc_pcm_runtime *rtd = substream->private_data;
443 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
444
445
446
447
448
449 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
450 3 << SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT,
451 3 << SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT);
452
453 return clk_prepare_enable(scodec->clk_module);
454}
455
456static void sun4i_codec_shutdown(struct snd_pcm_substream *substream,
457 struct snd_soc_dai *dai)
458{
459 struct snd_soc_pcm_runtime *rtd = substream->private_data;
460 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
461
462 clk_disable_unprepare(scodec->clk_module);
463}
464
465static const struct snd_soc_dai_ops sun4i_codec_dai_ops = {
466 .startup = sun4i_codec_startup,
467 .shutdown = sun4i_codec_shutdown,
468 .trigger = sun4i_codec_trigger,
469 .hw_params = sun4i_codec_hw_params,
470 .prepare = sun4i_codec_prepare,
471};
472
473static struct snd_soc_dai_driver sun4i_codec_dai = {
474 .name = "Codec",
475 .ops = &sun4i_codec_dai_ops,
476 .playback = {
477 .stream_name = "Codec Playback",
478 .channels_min = 1,
479 .channels_max = 2,
480 .rate_min = 8000,
481 .rate_max = 192000,
482 .rates = SNDRV_PCM_RATE_8000_48000 |
483 SNDRV_PCM_RATE_96000 |
484 SNDRV_PCM_RATE_192000,
485 .formats = SNDRV_PCM_FMTBIT_S16_LE |
486 SNDRV_PCM_FMTBIT_S32_LE,
487 .sig_bits = 24,
488 },
489 .capture = {
490 .stream_name = "Codec Capture",
491 .channels_min = 1,
492 .channels_max = 2,
493 .rate_min = 8000,
494 .rate_max = 192000,
495 .rates = SNDRV_PCM_RATE_8000_48000 |
496 SNDRV_PCM_RATE_96000 |
497 SNDRV_PCM_RATE_192000 |
498 SNDRV_PCM_RATE_KNOT,
499 .formats = SNDRV_PCM_FMTBIT_S16_LE |
500 SNDRV_PCM_FMTBIT_S32_LE,
501 .sig_bits = 24,
502 },
503};
504
505
506static const struct snd_kcontrol_new sun4i_codec_pa_mute =
507 SOC_DAPM_SINGLE("Switch", SUN4I_CODEC_DAC_ACTL,
508 SUN4I_CODEC_DAC_ACTL_PA_MUTE, 1, 0);
509
510static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
511
512static const struct snd_kcontrol_new sun4i_codec_widgets[] = {
513 SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
514 SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,
515 sun4i_codec_pa_volume_scale),
516};
517
518static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {
519 SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
520 SUN4I_CODEC_DAC_ACTL_LDACLMIXS, 1, 0),
521};
522
523static const struct snd_kcontrol_new sun4i_codec_right_mixer_controls[] = {
524 SOC_DAPM_SINGLE("Right DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
525 SUN4I_CODEC_DAC_ACTL_RDACRMIXS, 1, 0),
526 SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
527 SUN4I_CODEC_DAC_ACTL_LDACRMIXS, 1, 0),
528};
529
530static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = {
531 SOC_DAPM_SINGLE("DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
532 SUN4I_CODEC_DAC_ACTL_DACPAS, 1, 0),
533 SOC_DAPM_SINGLE("Mixer Playback Switch", SUN4I_CODEC_DAC_ACTL,
534 SUN4I_CODEC_DAC_ACTL_MIXPAS, 1, 0),
535};
536
537static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
538
539 SND_SOC_DAPM_SUPPLY("ADC", SUN4I_CODEC_ADC_FIFOC,
540 SUN4I_CODEC_ADC_FIFOC_EN_AD, 0,
541 NULL, 0),
542
543
544 SND_SOC_DAPM_SUPPLY("DAC", SUN4I_CODEC_DAC_DPC,
545 SUN4I_CODEC_DAC_DPC_EN_DA, 0,
546 NULL, 0),
547
548
549 SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
550 SUN4I_CODEC_ADC_ACTL_ADC_L_EN, 0),
551 SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
552 SUN4I_CODEC_ADC_ACTL_ADC_R_EN, 0),
553
554
555 SND_SOC_DAPM_DAC("Left DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
556 SUN4I_CODEC_DAC_ACTL_DACAENL, 0),
557 SND_SOC_DAPM_DAC("Right DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
558 SUN4I_CODEC_DAC_ACTL_DACAENR, 0),
559
560
561 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
562 sun4i_codec_left_mixer_controls,
563 ARRAY_SIZE(sun4i_codec_left_mixer_controls)),
564 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
565 sun4i_codec_right_mixer_controls,
566 ARRAY_SIZE(sun4i_codec_right_mixer_controls)),
567
568
569 SND_SOC_DAPM_SUPPLY("Mixer Enable", SUN4I_CODEC_DAC_ACTL,
570 SUN4I_CODEC_DAC_ACTL_MIXEN, 0, NULL, 0),
571
572
573 SND_SOC_DAPM_SUPPLY("VMIC", SUN4I_CODEC_ADC_ACTL,
574 SUN4I_CODEC_ADC_ACTL_VMICEN, 0, NULL, 0),
575
576
577 SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
578 SUN4I_CODEC_ADC_ACTL_PREG1EN, 0, NULL, 0),
579
580
581 SND_SOC_DAPM_MIXER("Power Amplifier", SUN4I_CODEC_ADC_ACTL,
582 SUN4I_CODEC_ADC_ACTL_PA_EN, 0,
583 sun4i_codec_pa_mixer_controls,
584 ARRAY_SIZE(sun4i_codec_pa_mixer_controls)),
585 SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
586 &sun4i_codec_pa_mute),
587
588 SND_SOC_DAPM_INPUT("Mic1"),
589
590 SND_SOC_DAPM_OUTPUT("HP Right"),
591 SND_SOC_DAPM_OUTPUT("HP Left"),
592};
593
594static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
595
596 { "Left ADC", NULL, "ADC" },
597 { "Left DAC", NULL, "DAC" },
598
599
600 { "Right ADC", NULL, "ADC" },
601 { "Right DAC", NULL, "DAC" },
602
603
604 { "Right Mixer", NULL, "Mixer Enable" },
605 { "Right Mixer", "Left DAC Playback Switch", "Left DAC" },
606 { "Right Mixer", "Right DAC Playback Switch", "Right DAC" },
607
608
609 { "Left Mixer", NULL, "Mixer Enable" },
610 { "Left Mixer", "Left DAC Playback Switch", "Left DAC" },
611
612
613 { "Power Amplifier", "Mixer Playback Switch", "Left Mixer" },
614 { "Power Amplifier", "Mixer Playback Switch", "Right Mixer" },
615 { "Power Amplifier", "DAC Playback Switch", "Left DAC" },
616 { "Power Amplifier", "DAC Playback Switch", "Right DAC" },
617
618
619 { "Power Amplifier Mute", "Switch", "Power Amplifier" },
620 { "HP Right", NULL, "Power Amplifier Mute" },
621 { "HP Left", NULL, "Power Amplifier Mute" },
622
623
624 { "Left ADC", NULL, "MIC1 Pre-Amplifier" },
625 { "Right ADC", NULL, "MIC1 Pre-Amplifier" },
626 { "MIC1 Pre-Amplifier", NULL, "Mic1"},
627 { "Mic1", NULL, "VMIC" },
628};
629
630static struct snd_soc_codec_driver sun4i_codec_codec = {
631 .controls = sun4i_codec_widgets,
632 .num_controls = ARRAY_SIZE(sun4i_codec_widgets),
633 .dapm_widgets = sun4i_codec_codec_dapm_widgets,
634 .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
635 .dapm_routes = sun4i_codec_codec_dapm_routes,
636 .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
637};
638
639static const struct snd_soc_component_driver sun4i_codec_component = {
640 .name = "sun4i-codec",
641};
642
643#define SUN4I_CODEC_RATES SNDRV_PCM_RATE_8000_192000
644#define SUN4I_CODEC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
645 SNDRV_PCM_FMTBIT_S32_LE)
646
647static int sun4i_codec_dai_probe(struct snd_soc_dai *dai)
648{
649 struct snd_soc_card *card = snd_soc_dai_get_drvdata(dai);
650 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
651
652 snd_soc_dai_init_dma_data(dai, &scodec->playback_dma_data,
653 &scodec->capture_dma_data);
654
655 return 0;
656}
657
658static struct snd_soc_dai_driver dummy_cpu_dai = {
659 .name = "sun4i-codec-cpu-dai",
660 .probe = sun4i_codec_dai_probe,
661 .playback = {
662 .stream_name = "Playback",
663 .channels_min = 1,
664 .channels_max = 2,
665 .rates = SUN4I_CODEC_RATES,
666 .formats = SUN4I_CODEC_FORMATS,
667 .sig_bits = 24,
668 },
669 .capture = {
670 .stream_name = "Capture",
671 .channels_min = 1,
672 .channels_max = 2,
673 .rates = SUN4I_CODEC_RATES,
674 .formats = SUN4I_CODEC_FORMATS,
675 .sig_bits = 24,
676 },
677};
678
679static const struct regmap_config sun4i_codec_regmap_config = {
680 .reg_bits = 32,
681 .reg_stride = 4,
682 .val_bits = 32,
683 .max_register = SUN4I_CODEC_AC_MIC_PHONE_CAL,
684};
685
686static const struct of_device_id sun4i_codec_of_match[] = {
687 { .compatible = "allwinner,sun4i-a10-codec" },
688 { .compatible = "allwinner,sun7i-a20-codec" },
689 {}
690};
691MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
692
693static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
694 int *num_links)
695{
696 struct snd_soc_dai_link *link = devm_kzalloc(dev, sizeof(*link),
697 GFP_KERNEL);
698 if (!link)
699 return NULL;
700
701 link->name = "cdc";
702 link->stream_name = "CDC PCM";
703 link->codec_dai_name = "Codec";
704 link->cpu_dai_name = dev_name(dev);
705 link->codec_name = dev_name(dev);
706 link->platform_name = dev_name(dev);
707 link->dai_fmt = SND_SOC_DAIFMT_I2S;
708
709 *num_links = 1;
710
711 return link;
712};
713
714static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
715 struct snd_kcontrol *k, int event)
716{
717 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(w->dapm->card);
718
719 if (scodec->gpio_pa)
720 gpiod_set_value_cansleep(scodec->gpio_pa,
721 !!SND_SOC_DAPM_EVENT_ON(event));
722
723 return 0;
724}
725
726static const struct snd_soc_dapm_widget sun4i_codec_card_dapm_widgets[] = {
727 SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
728};
729
730static const struct snd_soc_dapm_route sun4i_codec_card_dapm_routes[] = {
731 { "Speaker", NULL, "HP Right" },
732 { "Speaker", NULL, "HP Left" },
733};
734
735static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)
736{
737 struct snd_soc_card *card;
738
739 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
740 if (!card)
741 return NULL;
742
743 card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
744 if (!card->dai_link)
745 return NULL;
746
747 card->dev = dev;
748 card->name = "sun4i-codec";
749 card->dapm_widgets = sun4i_codec_card_dapm_widgets;
750 card->num_dapm_widgets = ARRAY_SIZE(sun4i_codec_card_dapm_widgets);
751 card->dapm_routes = sun4i_codec_card_dapm_routes;
752 card->num_dapm_routes = ARRAY_SIZE(sun4i_codec_card_dapm_routes);
753
754 return card;
755};
756
757static int sun4i_codec_probe(struct platform_device *pdev)
758{
759 struct snd_soc_card *card;
760 struct sun4i_codec *scodec;
761 struct resource *res;
762 void __iomem *base;
763 int ret;
764
765 scodec = devm_kzalloc(&pdev->dev, sizeof(*scodec), GFP_KERNEL);
766 if (!scodec)
767 return -ENOMEM;
768
769 scodec->dev = &pdev->dev;
770
771 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
772 base = devm_ioremap_resource(&pdev->dev, res);
773 if (IS_ERR(base)) {
774 dev_err(&pdev->dev, "Failed to map the registers\n");
775 return PTR_ERR(base);
776 }
777
778 scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
779 &sun4i_codec_regmap_config);
780 if (IS_ERR(scodec->regmap)) {
781 dev_err(&pdev->dev, "Failed to create our regmap\n");
782 return PTR_ERR(scodec->regmap);
783 }
784
785
786 scodec->clk_apb = devm_clk_get(&pdev->dev, "apb");
787 if (IS_ERR(scodec->clk_apb)) {
788 dev_err(&pdev->dev, "Failed to get the APB clock\n");
789 return PTR_ERR(scodec->clk_apb);
790 }
791
792 scodec->clk_module = devm_clk_get(&pdev->dev, "codec");
793 if (IS_ERR(scodec->clk_module)) {
794 dev_err(&pdev->dev, "Failed to get the module clock\n");
795 return PTR_ERR(scodec->clk_module);
796 }
797
798
799 if (clk_prepare_enable(scodec->clk_apb)) {
800 dev_err(&pdev->dev, "Failed to enable the APB clock\n");
801 return -EINVAL;
802 }
803
804 scodec->gpio_pa = devm_gpiod_get_optional(&pdev->dev, "allwinner,pa",
805 GPIOD_OUT_LOW);
806 if (IS_ERR(scodec->gpio_pa)) {
807 ret = PTR_ERR(scodec->gpio_pa);
808 if (ret != -EPROBE_DEFER)
809 dev_err(&pdev->dev, "Failed to get pa gpio: %d\n", ret);
810 return ret;
811 }
812
813
814 scodec->playback_dma_data.addr = res->start + SUN4I_CODEC_DAC_TXDATA;
815 scodec->playback_dma_data.maxburst = 4;
816 scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
817
818
819 scodec->capture_dma_data.addr = res->start + SUN4I_CODEC_ADC_RXDATA;
820 scodec->capture_dma_data.maxburst = 4;
821 scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
822
823 ret = snd_soc_register_codec(&pdev->dev, &sun4i_codec_codec,
824 &sun4i_codec_dai, 1);
825 if (ret) {
826 dev_err(&pdev->dev, "Failed to register our codec\n");
827 goto err_clk_disable;
828 }
829
830 ret = devm_snd_soc_register_component(&pdev->dev,
831 &sun4i_codec_component,
832 &dummy_cpu_dai, 1);
833 if (ret) {
834 dev_err(&pdev->dev, "Failed to register our DAI\n");
835 goto err_unregister_codec;
836 }
837
838 ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
839 if (ret) {
840 dev_err(&pdev->dev, "Failed to register against DMAEngine\n");
841 goto err_unregister_codec;
842 }
843
844 card = sun4i_codec_create_card(&pdev->dev);
845 if (!card) {
846 dev_err(&pdev->dev, "Failed to create our card\n");
847 goto err_unregister_codec;
848 }
849
850 platform_set_drvdata(pdev, card);
851 snd_soc_card_set_drvdata(card, scodec);
852
853 ret = snd_soc_register_card(card);
854 if (ret) {
855 dev_err(&pdev->dev, "Failed to register our card\n");
856 goto err_unregister_codec;
857 }
858
859 return 0;
860
861err_unregister_codec:
862 snd_soc_unregister_codec(&pdev->dev);
863err_clk_disable:
864 clk_disable_unprepare(scodec->clk_apb);
865 return ret;
866}
867
868static int sun4i_codec_remove(struct platform_device *pdev)
869{
870 struct snd_soc_card *card = platform_get_drvdata(pdev);
871 struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
872
873 snd_soc_unregister_card(card);
874 snd_soc_unregister_codec(&pdev->dev);
875 clk_disable_unprepare(scodec->clk_apb);
876
877 return 0;
878}
879
880static struct platform_driver sun4i_codec_driver = {
881 .driver = {
882 .name = "sun4i-codec",
883 .of_match_table = sun4i_codec_of_match,
884 },
885 .probe = sun4i_codec_probe,
886 .remove = sun4i_codec_remove,
887};
888module_platform_driver(sun4i_codec_driver);
889
890MODULE_DESCRIPTION("Allwinner A10 codec driver");
891MODULE_AUTHOR("Emilio López <emilio@elopez.com.ar>");
892MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
893MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
894MODULE_LICENSE("GPL");
895
