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29#include <linux/module.h>
30#include <linux/moduleparam.h>
31#include <linux/init.h>
32#include <linux/delay.h>
33#include <linux/pm.h>
34#include <linux/i2c.h>
35#include <linux/spi/spi.h>
36#include <linux/regmap.h>
37#include <linux/slab.h>
38#include <sound/core.h>
39#include <sound/pcm.h>
40#include <sound/pcm_params.h>
41#include <sound/soc.h>
42#include <sound/initval.h>
43#include <sound/tlv.h>
44
45#include "ssm2602.h"
46
47enum ssm2602_type {
48 SSM2602,
49 SSM2604,
50};
51
52
53struct ssm2602_priv {
54 unsigned int sysclk;
55 struct snd_pcm_hw_constraint_list *sysclk_constraints;
56 struct snd_pcm_substream *master_substream;
57 struct snd_pcm_substream *slave_substream;
58
59 struct regmap *regmap;
60
61 enum ssm2602_type type;
62 unsigned int clk_out_pwr;
63};
64
65
66
67
68
69
70
71static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
72 0x0097, 0x0097, 0x0079, 0x0079,
73 0x000a, 0x0008, 0x009f, 0x000a,
74 0x0000, 0x0000
75};
76
77
78
79static const char *ssm2602_input_select[] = {
80 "Line", "Mic", "None", "None", "None",
81 "None", "None", "None",
82};
83
84static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
85
86static const struct soc_enum ssm2602_enum[] = {
87 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
88 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
89};
90
91static const unsigned int ssm260x_outmix_tlv[] = {
92 TLV_DB_RANGE_HEAD(2),
93 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
94 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
95};
96
97static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
98static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
99
100static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
101SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
102 ssm260x_inpga_tlv),
103SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
104
105SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
106SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
107
108SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
109};
110
111static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
112SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
113 0, 127, 0, ssm260x_outmix_tlv),
114SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
115 7, 1, 0),
116SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
117 ssm260x_sidetone_tlv),
118
119SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
120SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
121SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
122};
123
124
125static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
126SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
127SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
128SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
129};
130
131
132static const struct snd_kcontrol_new ssm2602_input_mux_controls =
133SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
134
135static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
136SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
137SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
138SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
139
140SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
141
142SND_SOC_DAPM_OUTPUT("LOUT"),
143SND_SOC_DAPM_OUTPUT("ROUT"),
144SND_SOC_DAPM_INPUT("RLINEIN"),
145SND_SOC_DAPM_INPUT("LLINEIN"),
146};
147
148static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
149SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
150 ssm260x_output_mixer_controls,
151 ARRAY_SIZE(ssm260x_output_mixer_controls)),
152
153SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
154SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
155
156SND_SOC_DAPM_OUTPUT("LHPOUT"),
157SND_SOC_DAPM_OUTPUT("RHPOUT"),
158SND_SOC_DAPM_INPUT("MICIN"),
159};
160
161static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
162SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
163 ssm260x_output_mixer_controls,
164 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1),
165};
166
167static const struct snd_soc_dapm_route ssm260x_routes[] = {
168 {"DAC", NULL, "Digital Core Power"},
169 {"ADC", NULL, "Digital Core Power"},
170
171 {"Output Mixer", "Line Bypass Switch", "Line Input"},
172 {"Output Mixer", "HiFi Playback Switch", "DAC"},
173
174 {"ROUT", NULL, "Output Mixer"},
175 {"LOUT", NULL, "Output Mixer"},
176
177 {"Line Input", NULL, "LLINEIN"},
178 {"Line Input", NULL, "RLINEIN"},
179};
180
181static const struct snd_soc_dapm_route ssm2602_routes[] = {
182 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
183
184 {"RHPOUT", NULL, "Output Mixer"},
185 {"LHPOUT", NULL, "Output Mixer"},
186
187 {"Input Mux", "Line", "Line Input"},
188 {"Input Mux", "Mic", "Mic Bias"},
189 {"ADC", NULL, "Input Mux"},
190
191 {"Mic Bias", NULL, "MICIN"},
192};
193
194static const struct snd_soc_dapm_route ssm2604_routes[] = {
195 {"ADC", NULL, "Line Input"},
196};
197
198static const unsigned int ssm2602_rates_12288000[] = {
199 8000, 32000, 48000, 96000,
200};
201
202static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
203 .list = ssm2602_rates_12288000,
204 .count = ARRAY_SIZE(ssm2602_rates_12288000),
205};
206
207static const unsigned int ssm2602_rates_11289600[] = {
208 8000, 44100, 88200,
209};
210
211static struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
212 .list = ssm2602_rates_11289600,
213 .count = ARRAY_SIZE(ssm2602_rates_11289600),
214};
215
216struct ssm2602_coeff {
217 u32 mclk;
218 u32 rate;
219 u8 srate;
220};
221
222#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
223
224
225static const struct ssm2602_coeff ssm2602_coeff_table[] = {
226
227 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
228 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
229 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
230
231
232 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
233 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
234 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
235
236
237 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
238 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
239 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
240 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
241 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
242
243
244 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
245 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
246 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
247
248
249 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
250 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
251 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
252
253
254 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
255 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
256 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
257};
258
259static inline int ssm2602_get_coeff(int mclk, int rate)
260{
261 int i;
262
263 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
264 if (ssm2602_coeff_table[i].rate == rate &&
265 ssm2602_coeff_table[i].mclk == mclk)
266 return ssm2602_coeff_table[i].srate;
267 }
268 return -EINVAL;
269}
270
271static int ssm2602_hw_params(struct snd_pcm_substream *substream,
272 struct snd_pcm_hw_params *params,
273 struct snd_soc_dai *dai)
274{
275 struct snd_soc_codec *codec = dai->codec;
276 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
277 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
278 unsigned int iface;
279
280 if (substream == ssm2602->slave_substream) {
281 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
282 return 0;
283 }
284
285 if (srate < 0)
286 return srate;
287
288 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
289
290
291 switch (params_format(params)) {
292 case SNDRV_PCM_FORMAT_S16_LE:
293 iface = 0x0;
294 break;
295 case SNDRV_PCM_FORMAT_S20_3LE:
296 iface = 0x4;
297 break;
298 case SNDRV_PCM_FORMAT_S24_LE:
299 iface = 0x8;
300 break;
301 case SNDRV_PCM_FORMAT_S32_LE:
302 iface = 0xc;
303 break;
304 default:
305 return -EINVAL;
306 }
307 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
308 IFACE_AUDIO_DATA_LEN, iface);
309 return 0;
310}
311
312static int ssm2602_startup(struct snd_pcm_substream *substream,
313 struct snd_soc_dai *dai)
314{
315 struct snd_soc_codec *codec = dai->codec;
316 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
317 struct snd_pcm_runtime *master_runtime;
318
319
320
321
322
323 if (ssm2602->master_substream) {
324 master_runtime = ssm2602->master_substream->runtime;
325 dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n",
326 master_runtime->sample_bits,
327 master_runtime->rate);
328
329 if (master_runtime->rate != 0)
330 snd_pcm_hw_constraint_minmax(substream->runtime,
331 SNDRV_PCM_HW_PARAM_RATE,
332 master_runtime->rate,
333 master_runtime->rate);
334
335 if (master_runtime->sample_bits != 0)
336 snd_pcm_hw_constraint_minmax(substream->runtime,
337 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
338 master_runtime->sample_bits,
339 master_runtime->sample_bits);
340
341 ssm2602->slave_substream = substream;
342 } else
343 ssm2602->master_substream = substream;
344
345 if (ssm2602->sysclk_constraints) {
346 snd_pcm_hw_constraint_list(substream->runtime, 0,
347 SNDRV_PCM_HW_PARAM_RATE,
348 ssm2602->sysclk_constraints);
349 }
350
351 return 0;
352}
353
354static void ssm2602_shutdown(struct snd_pcm_substream *substream,
355 struct snd_soc_dai *dai)
356{
357 struct snd_soc_codec *codec = dai->codec;
358 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
359
360 if (ssm2602->master_substream == substream)
361 ssm2602->master_substream = ssm2602->slave_substream;
362
363 ssm2602->slave_substream = NULL;
364}
365
366
367static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
368{
369 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec);
370
371 if (mute)
372 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
373 APDIGI_ENABLE_DAC_MUTE,
374 APDIGI_ENABLE_DAC_MUTE);
375 else
376 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
377 APDIGI_ENABLE_DAC_MUTE, 0);
378 return 0;
379}
380
381static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
382 int clk_id, unsigned int freq, int dir)
383{
384 struct snd_soc_codec *codec = codec_dai->codec;
385 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
386
387 if (dir == SND_SOC_CLOCK_IN) {
388 if (clk_id != SSM2602_SYSCLK)
389 return -EINVAL;
390
391 switch (freq) {
392 case 12288000:
393 case 18432000:
394 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
395 break;
396 case 11289600:
397 case 16934400:
398 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
399 break;
400 case 12000000:
401 ssm2602->sysclk_constraints = NULL;
402 break;
403 default:
404 return -EINVAL;
405 }
406 ssm2602->sysclk = freq;
407 } else {
408 unsigned int mask;
409
410 switch (clk_id) {
411 case SSM2602_CLK_CLKOUT:
412 mask = PWR_CLK_OUT_PDN;
413 break;
414 case SSM2602_CLK_XTO:
415 mask = PWR_OSC_PDN;
416 break;
417 default:
418 return -EINVAL;
419 }
420
421 if (freq == 0)
422 ssm2602->clk_out_pwr |= mask;
423 else
424 ssm2602->clk_out_pwr &= ~mask;
425
426 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
427 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
428 }
429
430 return 0;
431}
432
433static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
434 unsigned int fmt)
435{
436 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec);
437 unsigned int iface = 0;
438
439
440 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
441 case SND_SOC_DAIFMT_CBM_CFM:
442 iface |= 0x0040;
443 break;
444 case SND_SOC_DAIFMT_CBS_CFS:
445 break;
446 default:
447 return -EINVAL;
448 }
449
450
451 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
452 case SND_SOC_DAIFMT_I2S:
453 iface |= 0x0002;
454 break;
455 case SND_SOC_DAIFMT_RIGHT_J:
456 break;
457 case SND_SOC_DAIFMT_LEFT_J:
458 iface |= 0x0001;
459 break;
460 case SND_SOC_DAIFMT_DSP_A:
461 iface |= 0x0013;
462 break;
463 case SND_SOC_DAIFMT_DSP_B:
464 iface |= 0x0003;
465 break;
466 default:
467 return -EINVAL;
468 }
469
470
471 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
472 case SND_SOC_DAIFMT_NB_NF:
473 break;
474 case SND_SOC_DAIFMT_IB_IF:
475 iface |= 0x0090;
476 break;
477 case SND_SOC_DAIFMT_IB_NF:
478 iface |= 0x0080;
479 break;
480 case SND_SOC_DAIFMT_NB_IF:
481 iface |= 0x0010;
482 break;
483 default:
484 return -EINVAL;
485 }
486
487
488 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
489 return 0;
490}
491
492static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
493 enum snd_soc_bias_level level)
494{
495 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
496
497 switch (level) {
498 case SND_SOC_BIAS_ON:
499
500 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
501 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
502 ssm2602->clk_out_pwr);
503 break;
504 case SND_SOC_BIAS_PREPARE:
505 break;
506 case SND_SOC_BIAS_STANDBY:
507
508 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
509 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
510 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
511 break;
512 case SND_SOC_BIAS_OFF:
513
514 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
515 PWR_POWER_OFF, PWR_POWER_OFF);
516 break;
517
518 }
519 codec->dapm.bias_level = level;
520 return 0;
521}
522
523#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
524 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
525 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
526
527#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
528 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
529
530static const struct snd_soc_dai_ops ssm2602_dai_ops = {
531 .startup = ssm2602_startup,
532 .hw_params = ssm2602_hw_params,
533 .shutdown = ssm2602_shutdown,
534 .digital_mute = ssm2602_mute,
535 .set_sysclk = ssm2602_set_dai_sysclk,
536 .set_fmt = ssm2602_set_dai_fmt,
537};
538
539static struct snd_soc_dai_driver ssm2602_dai = {
540 .name = "ssm2602-hifi",
541 .playback = {
542 .stream_name = "Playback",
543 .channels_min = 2,
544 .channels_max = 2,
545 .rates = SSM2602_RATES,
546 .formats = SSM2602_FORMATS,},
547 .capture = {
548 .stream_name = "Capture",
549 .channels_min = 2,
550 .channels_max = 2,
551 .rates = SSM2602_RATES,
552 .formats = SSM2602_FORMATS,},
553 .ops = &ssm2602_dai_ops,
554};
555
556static int ssm2602_suspend(struct snd_soc_codec *codec)
557{
558 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
559 return 0;
560}
561
562static int ssm2602_resume(struct snd_soc_codec *codec)
563{
564 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
565
566 regcache_sync(ssm2602->regmap);
567 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
568
569 return 0;
570}
571
572static int ssm2602_probe(struct snd_soc_codec *codec)
573{
574 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
575 struct snd_soc_dapm_context *dapm = &codec->dapm;
576 int ret;
577
578 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
579 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
580 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
581 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
582
583 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
584 ARRAY_SIZE(ssm2602_snd_controls));
585 if (ret)
586 return ret;
587
588 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
589 ARRAY_SIZE(ssm2602_dapm_widgets));
590 if (ret)
591 return ret;
592
593 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
594 ARRAY_SIZE(ssm2602_routes));
595}
596
597static int ssm2604_probe(struct snd_soc_codec *codec)
598{
599 struct snd_soc_dapm_context *dapm = &codec->dapm;
600 int ret;
601
602 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
603 ARRAY_SIZE(ssm2604_dapm_widgets));
604 if (ret)
605 return ret;
606
607 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
608 ARRAY_SIZE(ssm2604_routes));
609}
610
611static int ssm260x_probe(struct snd_soc_codec *codec)
612{
613 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
614 int ret;
615
616 codec->control_data = ssm2602->regmap;
617 ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
618 if (ret < 0) {
619 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
620 return ret;
621 }
622
623 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
624 if (ret < 0) {
625 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
626 return ret;
627 }
628
629
630 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
631 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
632 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
633 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
634
635 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
636 APANA_ENABLE_MIC_BOOST);
637
638 switch (ssm2602->type) {
639 case SSM2602:
640 ret = ssm2602_probe(codec);
641 break;
642 case SSM2604:
643 ret = ssm2604_probe(codec);
644 break;
645 }
646
647 if (ret)
648 return ret;
649
650 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
651
652 return 0;
653}
654
655
656static int ssm2602_remove(struct snd_soc_codec *codec)
657{
658 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
659 return 0;
660}
661
662static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
663 .probe = ssm260x_probe,
664 .remove = ssm2602_remove,
665 .suspend = ssm2602_suspend,
666 .resume = ssm2602_resume,
667 .set_bias_level = ssm2602_set_bias_level,
668
669 .controls = ssm260x_snd_controls,
670 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
671 .dapm_widgets = ssm260x_dapm_widgets,
672 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
673 .dapm_routes = ssm260x_routes,
674 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
675};
676
677static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
678{
679 return reg == SSM2602_RESET;
680}
681
682static const struct regmap_config ssm2602_regmap_config = {
683 .val_bits = 9,
684 .reg_bits = 7,
685
686 .max_register = SSM2602_RESET,
687 .volatile_reg = ssm2602_register_volatile,
688
689 .cache_type = REGCACHE_RBTREE,
690 .reg_defaults_raw = ssm2602_reg,
691 .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg),
692};
693
694#if defined(CONFIG_SPI_MASTER)
695static int ssm2602_spi_probe(struct spi_device *spi)
696{
697 struct ssm2602_priv *ssm2602;
698 int ret;
699
700 ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv),
701 GFP_KERNEL);
702 if (ssm2602 == NULL)
703 return -ENOMEM;
704
705 spi_set_drvdata(spi, ssm2602);
706 ssm2602->type = SSM2602;
707
708 ssm2602->regmap = devm_regmap_init_spi(spi, &ssm2602_regmap_config);
709 if (IS_ERR(ssm2602->regmap))
710 return PTR_ERR(ssm2602->regmap);
711
712 ret = snd_soc_register_codec(&spi->dev,
713 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
714 return ret;
715}
716
717static int ssm2602_spi_remove(struct spi_device *spi)
718{
719 snd_soc_unregister_codec(&spi->dev);
720 return 0;
721}
722
723static struct spi_driver ssm2602_spi_driver = {
724 .driver = {
725 .name = "ssm2602",
726 .owner = THIS_MODULE,
727 },
728 .probe = ssm2602_spi_probe,
729 .remove = ssm2602_spi_remove,
730};
731#endif
732
733#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
734
735
736
737
738
739
740static int ssm2602_i2c_probe(struct i2c_client *i2c,
741 const struct i2c_device_id *id)
742{
743 struct ssm2602_priv *ssm2602;
744 int ret;
745
746 ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv),
747 GFP_KERNEL);
748 if (ssm2602 == NULL)
749 return -ENOMEM;
750
751 i2c_set_clientdata(i2c, ssm2602);
752 ssm2602->type = id->driver_data;
753
754 ssm2602->regmap = devm_regmap_init_i2c(i2c, &ssm2602_regmap_config);
755 if (IS_ERR(ssm2602->regmap))
756 return PTR_ERR(ssm2602->regmap);
757
758 ret = snd_soc_register_codec(&i2c->dev,
759 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
760 return ret;
761}
762
763static int ssm2602_i2c_remove(struct i2c_client *client)
764{
765 snd_soc_unregister_codec(&client->dev);
766 return 0;
767}
768
769static const struct i2c_device_id ssm2602_i2c_id[] = {
770 { "ssm2602", SSM2602 },
771 { "ssm2603", SSM2602 },
772 { "ssm2604", SSM2604 },
773 { }
774};
775MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
776
777
778static struct i2c_driver ssm2602_i2c_driver = {
779 .driver = {
780 .name = "ssm2602",
781 .owner = THIS_MODULE,
782 },
783 .probe = ssm2602_i2c_probe,
784 .remove = ssm2602_i2c_remove,
785 .id_table = ssm2602_i2c_id,
786};
787#endif
788
789
790static int __init ssm2602_modinit(void)
791{
792 int ret = 0;
793
794#if defined(CONFIG_SPI_MASTER)
795 ret = spi_register_driver(&ssm2602_spi_driver);
796 if (ret)
797 return ret;
798#endif
799
800#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
801 ret = i2c_add_driver(&ssm2602_i2c_driver);
802 if (ret)
803 return ret;
804#endif
805
806 return ret;
807}
808module_init(ssm2602_modinit);
809
810static void __exit ssm2602_exit(void)
811{
812#if defined(CONFIG_SPI_MASTER)
813 spi_unregister_driver(&ssm2602_spi_driver);
814#endif
815
816#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
817 i2c_del_driver(&ssm2602_i2c_driver);
818#endif
819}
820module_exit(ssm2602_exit);
821
822MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
823MODULE_AUTHOR("Cliff Cai");
824MODULE_LICENSE("GPL");
825
