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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/platform_device.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
47#define SSM2602_VERSION "0.1"
48
49enum ssm2602_type {
50 SSM2602,
51 SSM2604,
52};
53
54
55struct ssm2602_priv {
56 unsigned int sysclk;
57 enum snd_soc_control_type control_type;
58 struct snd_pcm_substream *master_substream;
59 struct snd_pcm_substream *slave_substream;
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#define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0)
78
79
80static const char *ssm2602_input_select[] = {
81 "Line", "Mic", "None", "None", "None",
82 "None", "None", "None",
83};
84
85static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
86
87static const struct soc_enum ssm2602_enum[] = {
88 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
89 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
90};
91
92static const unsigned int ssm260x_outmix_tlv[] = {
93 TLV_DB_RANGE_HEAD(2),
94 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
95 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
96};
97
98static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
99static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
100
101static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
102SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
103 ssm260x_inpga_tlv),
104SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
105
106SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
107SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
108
109SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
110};
111
112static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
113SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
114 0, 127, 0, ssm260x_outmix_tlv),
115SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
116 7, 1, 0),
117SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
118 ssm260x_sidetone_tlv),
119
120SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
121SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
122SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
123};
124
125
126static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
127SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
128SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
129SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
130};
131
132
133static const struct snd_kcontrol_new ssm2602_input_mux_controls =
134SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
135
136static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
137SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
138SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
139SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
140
141SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
142
143SND_SOC_DAPM_OUTPUT("LOUT"),
144SND_SOC_DAPM_OUTPUT("ROUT"),
145SND_SOC_DAPM_INPUT("RLINEIN"),
146SND_SOC_DAPM_INPUT("LLINEIN"),
147};
148
149static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
150SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
151 ssm260x_output_mixer_controls,
152 ARRAY_SIZE(ssm260x_output_mixer_controls)),
153
154SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
155SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
156
157SND_SOC_DAPM_OUTPUT("LHPOUT"),
158SND_SOC_DAPM_OUTPUT("RHPOUT"),
159SND_SOC_DAPM_INPUT("MICIN"),
160};
161
162static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
163SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
164 ssm260x_output_mixer_controls,
165 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1),
166};
167
168static const struct snd_soc_dapm_route ssm260x_routes[] = {
169 {"DAC", NULL, "Digital Core Power"},
170 {"ADC", NULL, "Digital Core Power"},
171
172 {"Output Mixer", "Line Bypass Switch", "Line Input"},
173 {"Output Mixer", "HiFi Playback Switch", "DAC"},
174
175 {"ROUT", NULL, "Output Mixer"},
176 {"LOUT", NULL, "Output Mixer"},
177
178 {"Line Input", NULL, "LLINEIN"},
179 {"Line Input", NULL, "RLINEIN"},
180};
181
182static const struct snd_soc_dapm_route ssm2602_routes[] = {
183 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
184
185 {"RHPOUT", NULL, "Output Mixer"},
186 {"LHPOUT", NULL, "Output Mixer"},
187
188 {"Input Mux", "Line", "Line Input"},
189 {"Input Mux", "Mic", "Mic Bias"},
190 {"ADC", NULL, "Input Mux"},
191
192 {"Mic Bias", NULL, "MICIN"},
193};
194
195static const struct snd_soc_dapm_route ssm2604_routes[] = {
196 {"ADC", NULL, "Line Input"},
197};
198
199struct ssm2602_coeff {
200 u32 mclk;
201 u32 rate;
202 u8 srate;
203};
204
205#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
206
207
208static const struct ssm2602_coeff ssm2602_coeff_table[] = {
209
210 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
211 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
212 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
213
214
215 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
216 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
217 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
218
219
220 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
221 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
222 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
223 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
224 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
225
226
227 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
228 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
229 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
230
231
232 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
233 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
234 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
235
236
237 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
238 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
239 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
240};
241
242static inline int ssm2602_get_coeff(int mclk, int rate)
243{
244 int i;
245
246 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
247 if (ssm2602_coeff_table[i].rate == rate &&
248 ssm2602_coeff_table[i].mclk == mclk)
249 return ssm2602_coeff_table[i].srate;
250 }
251 return -EINVAL;
252}
253
254static int ssm2602_hw_params(struct snd_pcm_substream *substream,
255 struct snd_pcm_hw_params *params,
256 struct snd_soc_dai *dai)
257{
258 struct snd_soc_pcm_runtime *rtd = substream->private_data;
259 struct snd_soc_codec *codec = rtd->codec;
260 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
261 u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
262 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
263
264 if (substream == ssm2602->slave_substream) {
265 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
266 return 0;
267 }
268
269 if (srate < 0)
270 return srate;
271
272 snd_soc_write(codec, SSM2602_SRATE, srate);
273
274
275 switch (params_format(params)) {
276 case SNDRV_PCM_FORMAT_S16_LE:
277 break;
278 case SNDRV_PCM_FORMAT_S20_3LE:
279 iface |= 0x0004;
280 break;
281 case SNDRV_PCM_FORMAT_S24_LE:
282 iface |= 0x0008;
283 break;
284 case SNDRV_PCM_FORMAT_S32_LE:
285 iface |= 0x000c;
286 break;
287 }
288 snd_soc_write(codec, SSM2602_IFACE, iface);
289 return 0;
290}
291
292static int ssm2602_startup(struct snd_pcm_substream *substream,
293 struct snd_soc_dai *dai)
294{
295 struct snd_soc_pcm_runtime *rtd = substream->private_data;
296 struct snd_soc_codec *codec = rtd->codec;
297 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
298 struct snd_pcm_runtime *master_runtime;
299
300
301
302
303
304 if (ssm2602->master_substream) {
305 master_runtime = ssm2602->master_substream->runtime;
306 dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n",
307 master_runtime->sample_bits,
308 master_runtime->rate);
309
310 if (master_runtime->rate != 0)
311 snd_pcm_hw_constraint_minmax(substream->runtime,
312 SNDRV_PCM_HW_PARAM_RATE,
313 master_runtime->rate,
314 master_runtime->rate);
315
316 if (master_runtime->sample_bits != 0)
317 snd_pcm_hw_constraint_minmax(substream->runtime,
318 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
319 master_runtime->sample_bits,
320 master_runtime->sample_bits);
321
322 ssm2602->slave_substream = substream;
323 } else
324 ssm2602->master_substream = substream;
325
326 return 0;
327}
328
329static void ssm2602_shutdown(struct snd_pcm_substream *substream,
330 struct snd_soc_dai *dai)
331{
332 struct snd_soc_pcm_runtime *rtd = substream->private_data;
333 struct snd_soc_codec *codec = rtd->codec;
334 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
335
336 if (ssm2602->master_substream == substream)
337 ssm2602->master_substream = ssm2602->slave_substream;
338
339 ssm2602->slave_substream = NULL;
340}
341
342
343static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
344{
345 struct snd_soc_codec *codec = dai->codec;
346
347 if (mute)
348 snd_soc_update_bits(codec, SSM2602_APDIGI,
349 APDIGI_ENABLE_DAC_MUTE,
350 APDIGI_ENABLE_DAC_MUTE);
351 else
352 snd_soc_update_bits(codec, SSM2602_APDIGI,
353 APDIGI_ENABLE_DAC_MUTE, 0);
354 return 0;
355}
356
357static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
358 int clk_id, unsigned int freq, int dir)
359{
360 struct snd_soc_codec *codec = codec_dai->codec;
361 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
362
363 if (dir == SND_SOC_CLOCK_IN) {
364 if (clk_id != SSM2602_SYSCLK)
365 return -EINVAL;
366
367 switch (freq) {
368 case 11289600:
369 case 12000000:
370 case 12288000:
371 case 16934400:
372 case 18432000:
373 ssm2602->sysclk = freq;
374 break;
375 default:
376 return -EINVAL;
377 }
378 } else {
379 unsigned int mask;
380
381 switch (clk_id) {
382 case SSM2602_CLK_CLKOUT:
383 mask = PWR_CLK_OUT_PDN;
384 break;
385 case SSM2602_CLK_XTO:
386 mask = PWR_OSC_PDN;
387 break;
388 default:
389 return -EINVAL;
390 }
391
392 if (freq == 0)
393 ssm2602->clk_out_pwr |= mask;
394 else
395 ssm2602->clk_out_pwr &= ~mask;
396
397 snd_soc_update_bits(codec, SSM2602_PWR,
398 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
399 }
400
401 return 0;
402}
403
404static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
405 unsigned int fmt)
406{
407 struct snd_soc_codec *codec = codec_dai->codec;
408 u16 iface = 0;
409
410
411 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
412 case SND_SOC_DAIFMT_CBM_CFM:
413 iface |= 0x0040;
414 break;
415 case SND_SOC_DAIFMT_CBS_CFS:
416 break;
417 default:
418 return -EINVAL;
419 }
420
421
422 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
423 case SND_SOC_DAIFMT_I2S:
424 iface |= 0x0002;
425 break;
426 case SND_SOC_DAIFMT_RIGHT_J:
427 break;
428 case SND_SOC_DAIFMT_LEFT_J:
429 iface |= 0x0001;
430 break;
431 case SND_SOC_DAIFMT_DSP_A:
432 iface |= 0x0013;
433 break;
434 case SND_SOC_DAIFMT_DSP_B:
435 iface |= 0x0003;
436 break;
437 default:
438 return -EINVAL;
439 }
440
441
442 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
443 case SND_SOC_DAIFMT_NB_NF:
444 break;
445 case SND_SOC_DAIFMT_IB_IF:
446 iface |= 0x0090;
447 break;
448 case SND_SOC_DAIFMT_IB_NF:
449 iface |= 0x0080;
450 break;
451 case SND_SOC_DAIFMT_NB_IF:
452 iface |= 0x0010;
453 break;
454 default:
455 return -EINVAL;
456 }
457
458
459 snd_soc_write(codec, SSM2602_IFACE, iface);
460 return 0;
461}
462
463static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
464 enum snd_soc_bias_level level)
465{
466 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
467
468 switch (level) {
469 case SND_SOC_BIAS_ON:
470
471 snd_soc_update_bits(codec, SSM2602_PWR,
472 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
473 ssm2602->clk_out_pwr);
474 break;
475 case SND_SOC_BIAS_PREPARE:
476 break;
477 case SND_SOC_BIAS_STANDBY:
478
479 snd_soc_update_bits(codec, SSM2602_PWR,
480 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
481 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
482 break;
483 case SND_SOC_BIAS_OFF:
484
485 snd_soc_update_bits(codec, SSM2602_PWR,
486 PWR_POWER_OFF, PWR_POWER_OFF);
487 break;
488
489 }
490 codec->dapm.bias_level = level;
491 return 0;
492}
493
494#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
495 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
496 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
497
498#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
499 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
500
501static struct snd_soc_dai_ops ssm2602_dai_ops = {
502 .startup = ssm2602_startup,
503 .hw_params = ssm2602_hw_params,
504 .shutdown = ssm2602_shutdown,
505 .digital_mute = ssm2602_mute,
506 .set_sysclk = ssm2602_set_dai_sysclk,
507 .set_fmt = ssm2602_set_dai_fmt,
508};
509
510static struct snd_soc_dai_driver ssm2602_dai = {
511 .name = "ssm2602-hifi",
512 .playback = {
513 .stream_name = "Playback",
514 .channels_min = 2,
515 .channels_max = 2,
516 .rates = SSM2602_RATES,
517 .formats = SSM2602_FORMATS,},
518 .capture = {
519 .stream_name = "Capture",
520 .channels_min = 2,
521 .channels_max = 2,
522 .rates = SSM2602_RATES,
523 .formats = SSM2602_FORMATS,},
524 .ops = &ssm2602_dai_ops,
525};
526
527static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state)
528{
529 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
530 return 0;
531}
532
533static int ssm2602_resume(struct snd_soc_codec *codec)
534{
535 snd_soc_cache_sync(codec);
536
537 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
538
539 return 0;
540}
541
542static int ssm2602_probe(struct snd_soc_codec *codec)
543{
544 struct snd_soc_dapm_context *dapm = &codec->dapm;
545 int ret;
546
547 snd_soc_update_bits(codec, SSM2602_LOUT1V,
548 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
549 snd_soc_update_bits(codec, SSM2602_ROUT1V,
550 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
551
552 ret = snd_soc_add_controls(codec, ssm2602_snd_controls,
553 ARRAY_SIZE(ssm2602_snd_controls));
554 if (ret)
555 return ret;
556
557 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
558 ARRAY_SIZE(ssm2602_dapm_widgets));
559 if (ret)
560 return ret;
561
562 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
563 ARRAY_SIZE(ssm2602_routes));
564}
565
566static int ssm2604_probe(struct snd_soc_codec *codec)
567{
568 struct snd_soc_dapm_context *dapm = &codec->dapm;
569 int ret;
570
571 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
572 ARRAY_SIZE(ssm2604_dapm_widgets));
573 if (ret)
574 return ret;
575
576 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
577 ARRAY_SIZE(ssm2604_routes));
578}
579
580static int ssm260x_probe(struct snd_soc_codec *codec)
581{
582 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
583 int ret;
584
585 pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
586
587 ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
588 if (ret < 0) {
589 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
590 return ret;
591 }
592
593 ret = ssm2602_reset(codec);
594 if (ret < 0) {
595 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
596 return ret;
597 }
598
599
600 snd_soc_update_bits(codec, SSM2602_LINVOL,
601 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
602 snd_soc_update_bits(codec, SSM2602_RINVOL,
603 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
604
605 snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
606 APANA_ENABLE_MIC_BOOST);
607
608 switch (ssm2602->type) {
609 case SSM2602:
610 ret = ssm2602_probe(codec);
611 break;
612 case SSM2604:
613 ret = ssm2604_probe(codec);
614 break;
615 }
616
617 if (ret)
618 return ret;
619
620 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
621
622 return 0;
623}
624
625
626static int ssm2602_remove(struct snd_soc_codec *codec)
627{
628 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
629 return 0;
630}
631
632static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
633 .probe = ssm260x_probe,
634 .remove = ssm2602_remove,
635 .suspend = ssm2602_suspend,
636 .resume = ssm2602_resume,
637 .set_bias_level = ssm2602_set_bias_level,
638 .reg_cache_size = ARRAY_SIZE(ssm2602_reg),
639 .reg_word_size = sizeof(u16),
640 .reg_cache_default = ssm2602_reg,
641
642 .controls = ssm260x_snd_controls,
643 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
644 .dapm_widgets = ssm260x_dapm_widgets,
645 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
646 .dapm_routes = ssm260x_routes,
647 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
648};
649
650#if defined(CONFIG_SPI_MASTER)
651static int __devinit ssm2602_spi_probe(struct spi_device *spi)
652{
653 struct ssm2602_priv *ssm2602;
654 int ret;
655
656 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
657 if (ssm2602 == NULL)
658 return -ENOMEM;
659
660 spi_set_drvdata(spi, ssm2602);
661 ssm2602->control_type = SND_SOC_SPI;
662 ssm2602->type = SSM2602;
663
664 ret = snd_soc_register_codec(&spi->dev,
665 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
666 if (ret < 0)
667 kfree(ssm2602);
668 return ret;
669}
670
671static int __devexit ssm2602_spi_remove(struct spi_device *spi)
672{
673 snd_soc_unregister_codec(&spi->dev);
674 kfree(spi_get_drvdata(spi));
675 return 0;
676}
677
678static struct spi_driver ssm2602_spi_driver = {
679 .driver = {
680 .name = "ssm2602",
681 .owner = THIS_MODULE,
682 },
683 .probe = ssm2602_spi_probe,
684 .remove = __devexit_p(ssm2602_spi_remove),
685};
686#endif
687
688#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
689
690
691
692
693
694
695static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
696 const struct i2c_device_id *id)
697{
698 struct ssm2602_priv *ssm2602;
699 int ret;
700
701 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
702 if (ssm2602 == NULL)
703 return -ENOMEM;
704
705 i2c_set_clientdata(i2c, ssm2602);
706 ssm2602->control_type = SND_SOC_I2C;
707 ssm2602->type = id->driver_data;
708
709 ret = snd_soc_register_codec(&i2c->dev,
710 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
711 if (ret < 0)
712 kfree(ssm2602);
713 return ret;
714}
715
716static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
717{
718 snd_soc_unregister_codec(&client->dev);
719 kfree(i2c_get_clientdata(client));
720 return 0;
721}
722
723static const struct i2c_device_id ssm2602_i2c_id[] = {
724 { "ssm2602", SSM2602 },
725 { "ssm2603", SSM2602 },
726 { "ssm2604", SSM2604 },
727 { }
728};
729MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
730
731
732static struct i2c_driver ssm2602_i2c_driver = {
733 .driver = {
734 .name = "ssm2602",
735 .owner = THIS_MODULE,
736 },
737 .probe = ssm2602_i2c_probe,
738 .remove = __devexit_p(ssm2602_i2c_remove),
739 .id_table = ssm2602_i2c_id,
740};
741#endif
742
743
744static int __init ssm2602_modinit(void)
745{
746 int ret = 0;
747
748#if defined(CONFIG_SPI_MASTER)
749 ret = spi_register_driver(&ssm2602_spi_driver);
750 if (ret)
751 return ret;
752#endif
753
754#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
755 ret = i2c_add_driver(&ssm2602_i2c_driver);
756 if (ret)
757 return ret;
758#endif
759
760 return ret;
761}
762module_init(ssm2602_modinit);
763
764static void __exit ssm2602_exit(void)
765{
766#if defined(CONFIG_SPI_MASTER)
767 spi_unregister_driver(&ssm2602_spi_driver);
768#endif
769
770#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
771 i2c_del_driver(&ssm2602_i2c_driver);
772#endif
773}
774module_exit(ssm2602_exit);
775
776MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
777MODULE_AUTHOR("Cliff Cai");
778MODULE_LICENSE("GPL");
779
