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1// SPDX-License-Identifier: GPL-2.0-or-later
2//
3// File: sound/soc/codecs/ssm2602.c
4// Author: Cliff Cai <Cliff.Cai@analog.com>
5//
6// Created: Tue June 06 2008
7// Description: Driver for ssm2602 sound chip
8//
9// Modified:
10// Copyright 2008 Analog Devices Inc.
11//
12// Bugs: Enter bugs at http://blackfin.uclinux.org/
13
14#include <linux/delay.h>
15#include <linux/module.h>
16#include <linux/regmap.h>
17#include <linux/slab.h>
18
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/tlv.h>
23
24#include "ssm2602.h"
25
26/* codec private data */
27struct ssm2602_priv {
28 unsigned int sysclk;
29 const struct snd_pcm_hw_constraint_list *sysclk_constraints;
30
31 struct regmap *regmap;
32
33 enum ssm2602_type type;
34 unsigned int clk_out_pwr;
35};
36
37/*
38 * ssm2602 register cache
39 * We can't read the ssm2602 register space when we are
40 * using 2 wire for device control, so we cache them instead.
41 * There is no point in caching the reset register
42 */
43static const struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
44 { .reg = 0x00, .def = 0x0097 },
45 { .reg = 0x01, .def = 0x0097 },
46 { .reg = 0x02, .def = 0x0079 },
47 { .reg = 0x03, .def = 0x0079 },
48 { .reg = 0x04, .def = 0x000a },
49 { .reg = 0x05, .def = 0x0008 },
50 { .reg = 0x06, .def = 0x009f },
51 { .reg = 0x07, .def = 0x000a },
52 { .reg = 0x08, .def = 0x0000 },
53 { .reg = 0x09, .def = 0x0000 }
54};
55
56/*
57 * ssm2602 register patch
58 * Workaround for playback distortions after power up: activates digital
59 * core, and then powers on output, DAC, and whole chip at the same time
60 */
61
62static const struct reg_sequence ssm2602_patch[] = {
63 { SSM2602_ACTIVE, 0x01 },
64 { SSM2602_PWR, 0x07 },
65 { SSM2602_RESET, 0x00 },
66};
67
68
69/*Appending several "None"s just for OSS mixer use*/
70static const char *ssm2602_input_select[] = {
71 "Line", "Mic",
72};
73
74static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
75
76static const struct soc_enum ssm2602_enum[] = {
77 SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
78 ssm2602_input_select),
79 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
80 ssm2602_deemph),
81};
82
83static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
84 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
85 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
86);
87
88static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
89static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
90
91static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
92SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
93 ssm260x_inpga_tlv),
94SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
95
96SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
97SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
98
99SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
100};
101
102static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
103SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
104 0, 127, 0, ssm260x_outmix_tlv),
105SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
106 7, 1, 0),
107SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
108 ssm260x_sidetone_tlv),
109
110SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
111SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
112};
113
114/* Output Mixer */
115static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
116SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
117SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
118SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
119};
120
121static const struct snd_kcontrol_new mic_ctl =
122 SOC_DAPM_SINGLE("Switch", SSM2602_APANA, 1, 1, 1);
123
124/* Input mux */
125static const struct snd_kcontrol_new ssm2602_input_mux_controls =
126SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
127
128static int ssm2602_mic_switch_event(struct snd_soc_dapm_widget *w,
129 struct snd_kcontrol *kcontrol, int event)
130{
131 /*
132 * According to the ssm2603 data sheet (control register sequencing),
133 * the digital core should be activated only after all necessary bits
134 * in the power register are enabled, and a delay determined by the
135 * decoupling capacitor on the VMID pin has passed. If the digital core
136 * is activated too early, or even before the ADC is powered up, audible
137 * artifacts appear at the beginning and end of the recorded signal.
138 *
139 * In practice, audible artifacts disappear well over 500 ms.
140 */
141 msleep(500);
142
143 return 0;
144}
145
146static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
147SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
148SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
149SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
150
151SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
152
153SND_SOC_DAPM_OUTPUT("LOUT"),
154SND_SOC_DAPM_OUTPUT("ROUT"),
155SND_SOC_DAPM_INPUT("RLINEIN"),
156SND_SOC_DAPM_INPUT("LLINEIN"),
157};
158
159static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
160SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
161 ssm260x_output_mixer_controls,
162 ARRAY_SIZE(ssm260x_output_mixer_controls)),
163
164SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
165SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
166
167SND_SOC_DAPM_SWITCH_E("Mic Switch", SSM2602_APANA, 1, 1, &mic_ctl,
168 ssm2602_mic_switch_event, SND_SOC_DAPM_PRE_PMU),
169
170SND_SOC_DAPM_OUTPUT("LHPOUT"),
171SND_SOC_DAPM_OUTPUT("RHPOUT"),
172SND_SOC_DAPM_INPUT("MICIN"),
173};
174
175static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
176SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
177 ssm260x_output_mixer_controls,
178 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
179};
180
181static const struct snd_soc_dapm_route ssm260x_routes[] = {
182 {"DAC", NULL, "Digital Core Power"},
183 {"ADC", NULL, "Digital Core Power"},
184
185 {"Output Mixer", "Line Bypass Switch", "Line Input"},
186 {"Output Mixer", "HiFi Playback Switch", "DAC"},
187
188 {"ROUT", NULL, "Output Mixer"},
189 {"LOUT", NULL, "Output Mixer"},
190
191 {"Line Input", NULL, "LLINEIN"},
192 {"Line Input", NULL, "RLINEIN"},
193};
194
195static const struct snd_soc_dapm_route ssm2602_routes[] = {
196 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
197
198 {"RHPOUT", NULL, "Output Mixer"},
199 {"LHPOUT", NULL, "Output Mixer"},
200
201 {"Input Mux", "Line", "Line Input"},
202 {"Input Mux", "Mic", "Mic Switch"},
203 {"ADC", NULL, "Input Mux"},
204
205 {"Mic Switch", NULL, "Mic Bias"},
206
207 {"Mic Bias", NULL, "MICIN"},
208};
209
210static const struct snd_soc_dapm_route ssm2604_routes[] = {
211 {"ADC", NULL, "Line Input"},
212};
213
214static const unsigned int ssm2602_rates_12288000[] = {
215 8000, 16000, 32000, 48000, 96000,
216};
217
218static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
219 .list = ssm2602_rates_12288000,
220 .count = ARRAY_SIZE(ssm2602_rates_12288000),
221};
222
223static const unsigned int ssm2602_rates_11289600[] = {
224 8000, 11025, 22050, 44100, 88200,
225};
226
227static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
228 .list = ssm2602_rates_11289600,
229 .count = ARRAY_SIZE(ssm2602_rates_11289600),
230};
231
232struct ssm2602_coeff {
233 u32 mclk;
234 u32 rate;
235 u8 srate;
236};
237
238#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
239
240/* codec mclk clock coefficients */
241static const struct ssm2602_coeff ssm2602_coeff_table[] = {
242 /* 48k */
243 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
244 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
245 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
246
247 /* 32k */
248 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
249 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
250 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
251
252 /* 16k */
253 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
254 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
255 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
256
257 /* 8k */
258 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
259 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
260 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
261 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
262 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
263
264 /* 96k */
265 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
266 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
267 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
268
269 /* 11.025k */
270 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
271 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
272 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
273
274 /* 22.05k */
275 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
276 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
277 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
278
279 /* 44.1k */
280 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
281 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
282 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
283
284 /* 88.2k */
285 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
286 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
287 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
288};
289
290static inline int ssm2602_get_coeff(int mclk, int rate)
291{
292 int i;
293
294 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
295 if (ssm2602_coeff_table[i].rate == rate) {
296 if (ssm2602_coeff_table[i].mclk == mclk)
297 return ssm2602_coeff_table[i].srate;
298 if (ssm2602_coeff_table[i].mclk == mclk / 2)
299 return ssm2602_coeff_table[i].srate | SRATE_CORECLK_DIV2;
300 }
301 }
302 return -EINVAL;
303}
304
305static int ssm2602_hw_params(struct snd_pcm_substream *substream,
306 struct snd_pcm_hw_params *params,
307 struct snd_soc_dai *dai)
308{
309 struct snd_soc_component *component = dai->component;
310 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
311 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
312 unsigned int iface;
313
314 if (srate < 0)
315 return srate;
316
317 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
318
319 /* bit size */
320 switch (params_width(params)) {
321 case 16:
322 iface = 0x0;
323 break;
324 case 20:
325 iface = 0x4;
326 break;
327 case 24:
328 iface = 0x8;
329 break;
330 case 32:
331 iface = 0xc;
332 break;
333 default:
334 return -EINVAL;
335 }
336 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
337 IFACE_AUDIO_DATA_LEN, iface);
338 return 0;
339}
340
341static int ssm2602_startup(struct snd_pcm_substream *substream,
342 struct snd_soc_dai *dai)
343{
344 struct snd_soc_component *component = dai->component;
345 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
346
347 if (ssm2602->sysclk_constraints) {
348 snd_pcm_hw_constraint_list(substream->runtime, 0,
349 SNDRV_PCM_HW_PARAM_RATE,
350 ssm2602->sysclk_constraints);
351 }
352
353 return 0;
354}
355
356static int ssm2602_mute(struct snd_soc_dai *dai, int mute, int direction)
357{
358 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(dai->component);
359
360 if (mute)
361 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
362 APDIGI_ENABLE_DAC_MUTE,
363 APDIGI_ENABLE_DAC_MUTE);
364 else
365 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
366 APDIGI_ENABLE_DAC_MUTE, 0);
367 return 0;
368}
369
370static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
371 int clk_id, unsigned int freq, int dir)
372{
373 struct snd_soc_component *component = codec_dai->component;
374 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
375
376 if (dir == SND_SOC_CLOCK_IN) {
377 if (clk_id != SSM2602_SYSCLK)
378 return -EINVAL;
379
380 switch (freq) {
381 case 12288000:
382 case 18432000:
383 case 24576000:
384 case 36864000:
385 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
386 break;
387 case 11289600:
388 case 16934400:
389 case 22579200:
390 case 33868800:
391 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
392 break;
393 case 12000000:
394 case 24000000:
395 ssm2602->sysclk_constraints = NULL;
396 break;
397 default:
398 return -EINVAL;
399 }
400
401 ssm2602->sysclk = freq;
402 } else {
403 unsigned int mask;
404
405 switch (clk_id) {
406 case SSM2602_CLK_CLKOUT:
407 mask = PWR_CLK_OUT_PDN;
408 break;
409 case SSM2602_CLK_XTO:
410 mask = PWR_OSC_PDN;
411 break;
412 default:
413 return -EINVAL;
414 }
415
416 if (freq == 0)
417 ssm2602->clk_out_pwr |= mask;
418 else
419 ssm2602->clk_out_pwr &= ~mask;
420
421 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
422 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
423 }
424
425 return 0;
426}
427
428static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
429 unsigned int fmt)
430{
431 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(codec_dai->component);
432 unsigned int iface = 0;
433
434 /* set master/slave audio interface */
435 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
436 case SND_SOC_DAIFMT_CBP_CFP:
437 iface |= 0x0040;
438 break;
439 case SND_SOC_DAIFMT_CBC_CFC:
440 break;
441 default:
442 return -EINVAL;
443 }
444
445 /* interface format */
446 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
447 case SND_SOC_DAIFMT_I2S:
448 iface |= 0x0002;
449 break;
450 case SND_SOC_DAIFMT_RIGHT_J:
451 break;
452 case SND_SOC_DAIFMT_LEFT_J:
453 iface |= 0x0001;
454 break;
455 case SND_SOC_DAIFMT_DSP_A:
456 iface |= 0x0013;
457 break;
458 case SND_SOC_DAIFMT_DSP_B:
459 iface |= 0x0003;
460 break;
461 default:
462 return -EINVAL;
463 }
464
465 /* clock inversion */
466 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
467 case SND_SOC_DAIFMT_NB_NF:
468 break;
469 case SND_SOC_DAIFMT_IB_IF:
470 iface |= 0x0090;
471 break;
472 case SND_SOC_DAIFMT_IB_NF:
473 iface |= 0x0080;
474 break;
475 case SND_SOC_DAIFMT_NB_IF:
476 iface |= 0x0010;
477 break;
478 default:
479 return -EINVAL;
480 }
481
482 /* set iface */
483 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
484 return 0;
485}
486
487static int ssm2602_set_bias_level(struct snd_soc_component *component,
488 enum snd_soc_bias_level level)
489{
490 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
491
492 switch (level) {
493 case SND_SOC_BIAS_ON:
494 /* vref/mid on, osc and clkout on if enabled */
495 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
496 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
497 ssm2602->clk_out_pwr);
498 break;
499 case SND_SOC_BIAS_PREPARE:
500 break;
501 case SND_SOC_BIAS_STANDBY:
502 /* everything off except vref/vmid, */
503 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
504 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
505 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
506 break;
507 case SND_SOC_BIAS_OFF:
508 /* everything off */
509 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
510 PWR_POWER_OFF, PWR_POWER_OFF);
511 break;
512
513 }
514 return 0;
515}
516
517#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
518 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
519 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
520 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
521 SNDRV_PCM_RATE_96000)
522
523#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
524 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
525
526static const struct snd_soc_dai_ops ssm2602_dai_ops = {
527 .startup = ssm2602_startup,
528 .hw_params = ssm2602_hw_params,
529 .mute_stream = ssm2602_mute,
530 .set_sysclk = ssm2602_set_dai_sysclk,
531 .set_fmt = ssm2602_set_dai_fmt,
532 .no_capture_mute = 1,
533};
534
535static struct snd_soc_dai_driver ssm2602_dai = {
536 .name = "ssm2602-hifi",
537 .playback = {
538 .stream_name = "Playback",
539 .channels_min = 2,
540 .channels_max = 2,
541 .rates = SSM2602_RATES,
542 .formats = SSM2602_FORMATS,},
543 .capture = {
544 .stream_name = "Capture",
545 .channels_min = 2,
546 .channels_max = 2,
547 .rates = SSM2602_RATES,
548 .formats = SSM2602_FORMATS,},
549 .ops = &ssm2602_dai_ops,
550 .symmetric_rate = 1,
551 .symmetric_sample_bits = 1,
552};
553
554static int ssm2602_resume(struct snd_soc_component *component)
555{
556 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
557
558 regcache_sync(ssm2602->regmap);
559
560 return 0;
561}
562
563static int ssm2602_component_probe(struct snd_soc_component *component)
564{
565 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
566 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
567 int ret;
568
569 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
570 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
571 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
572 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
573
574 ret = snd_soc_add_component_controls(component, ssm2602_snd_controls,
575 ARRAY_SIZE(ssm2602_snd_controls));
576 if (ret)
577 return ret;
578
579 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
580 ARRAY_SIZE(ssm2602_dapm_widgets));
581 if (ret)
582 return ret;
583
584 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
585 ARRAY_SIZE(ssm2602_routes));
586}
587
588static int ssm2604_component_probe(struct snd_soc_component *component)
589{
590 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
591 int ret;
592
593 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
594 ARRAY_SIZE(ssm2604_dapm_widgets));
595 if (ret)
596 return ret;
597
598 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
599 ARRAY_SIZE(ssm2604_routes));
600}
601
602static int ssm260x_component_probe(struct snd_soc_component *component)
603{
604 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
605 int ret;
606
607 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
608 if (ret < 0) {
609 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
610 return ret;
611 }
612
613 regmap_register_patch(ssm2602->regmap, ssm2602_patch,
614 ARRAY_SIZE(ssm2602_patch));
615
616 /* set the update bits */
617 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
618 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
619 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
620 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
621 /*select Line in as default input*/
622 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
623 APANA_ENABLE_MIC_BOOST);
624
625 switch (ssm2602->type) {
626 case SSM2602:
627 ret = ssm2602_component_probe(component);
628 break;
629 case SSM2604:
630 ret = ssm2604_component_probe(component);
631 break;
632 }
633
634 return ret;
635}
636
637static const struct snd_soc_component_driver soc_component_dev_ssm2602 = {
638 .probe = ssm260x_component_probe,
639 .resume = ssm2602_resume,
640 .set_bias_level = ssm2602_set_bias_level,
641 .controls = ssm260x_snd_controls,
642 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
643 .dapm_widgets = ssm260x_dapm_widgets,
644 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
645 .dapm_routes = ssm260x_routes,
646 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
647 .suspend_bias_off = 1,
648 .idle_bias_on = 1,
649 .use_pmdown_time = 1,
650 .endianness = 1,
651};
652
653static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
654{
655 return reg == SSM2602_RESET;
656}
657
658const struct regmap_config ssm2602_regmap_config = {
659 .val_bits = 9,
660 .reg_bits = 7,
661
662 .max_register = SSM2602_RESET,
663 .volatile_reg = ssm2602_register_volatile,
664
665 .cache_type = REGCACHE_RBTREE,
666 .reg_defaults = ssm2602_reg,
667 .num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
668};
669EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
670
671int ssm2602_probe(struct device *dev, enum ssm2602_type type,
672 struct regmap *regmap)
673{
674 struct ssm2602_priv *ssm2602;
675
676 if (IS_ERR(regmap))
677 return PTR_ERR(regmap);
678
679 ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
680 if (ssm2602 == NULL)
681 return -ENOMEM;
682
683 dev_set_drvdata(dev, ssm2602);
684 ssm2602->type = type;
685 ssm2602->regmap = regmap;
686
687 return devm_snd_soc_register_component(dev, &soc_component_dev_ssm2602,
688 &ssm2602_dai, 1);
689}
690EXPORT_SYMBOL_GPL(ssm2602_probe);
691
692MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
693MODULE_AUTHOR("Cliff Cai");
694MODULE_LICENSE("GPL");
1/*
2 * File: sound/soc/codecs/ssm2602.c
3 * Author: Cliff Cai <Cliff.Cai@analog.com>
4 *
5 * Created: Tue June 06 2008
6 * Description: Driver for ssm2602 sound chip
7 *
8 * Modified:
9 * Copyright 2008 Analog Devices Inc.
10 *
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see the file COPYING, or write
25 * to the Free Software Foundation, Inc.,
26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 */
28
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/* codec private data */
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};
63
64/*
65 * ssm2602 register cache
66 * We can't read the ssm2602 register space when we are
67 * using 2 wire for device control, so we cache them instead.
68 * There is no point in caching the reset register
69 */
70static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
71 0x0097, 0x0097, 0x0079, 0x0079,
72 0x000a, 0x0008, 0x009f, 0x000a,
73 0x0000, 0x0000
74};
75
76#define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0)
77
78/*Appending several "None"s just for OSS mixer use*/
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/* Output Mixer */
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/* Input mux */
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), /* Last element is the mic */
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
198struct ssm2602_coeff {
199 u32 mclk;
200 u32 rate;
201 u8 srate;
202};
203
204#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
205
206/* codec mclk clock coefficients */
207static const struct ssm2602_coeff ssm2602_coeff_table[] = {
208 /* 48k */
209 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
210 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
211 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
212
213 /* 32k */
214 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
215 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
216 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
217
218 /* 8k */
219 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
220 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
221 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
222 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
223 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
224
225 /* 96k */
226 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
227 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
228 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
229
230 /* 44.1k */
231 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
232 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
233 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
234
235 /* 88.2k */
236 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
237 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
238 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
239};
240
241static inline int ssm2602_get_coeff(int mclk, int rate)
242{
243 int i;
244
245 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
246 if (ssm2602_coeff_table[i].rate == rate &&
247 ssm2602_coeff_table[i].mclk == mclk)
248 return ssm2602_coeff_table[i].srate;
249 }
250 return -EINVAL;
251}
252
253static int ssm2602_hw_params(struct snd_pcm_substream *substream,
254 struct snd_pcm_hw_params *params,
255 struct snd_soc_dai *dai)
256{
257 struct snd_soc_pcm_runtime *rtd = substream->private_data;
258 struct snd_soc_codec *codec = rtd->codec;
259 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
260 u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
261 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
262
263 if (substream == ssm2602->slave_substream) {
264 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
265 return 0;
266 }
267
268 if (srate < 0)
269 return srate;
270
271 snd_soc_write(codec, SSM2602_SRATE, srate);
272
273 /* bit size */
274 switch (params_format(params)) {
275 case SNDRV_PCM_FORMAT_S16_LE:
276 break;
277 case SNDRV_PCM_FORMAT_S20_3LE:
278 iface |= 0x0004;
279 break;
280 case SNDRV_PCM_FORMAT_S24_LE:
281 iface |= 0x0008;
282 break;
283 case SNDRV_PCM_FORMAT_S32_LE:
284 iface |= 0x000c;
285 break;
286 }
287 snd_soc_write(codec, SSM2602_IFACE, iface);
288 return 0;
289}
290
291static int ssm2602_startup(struct snd_pcm_substream *substream,
292 struct snd_soc_dai *dai)
293{
294 struct snd_soc_pcm_runtime *rtd = substream->private_data;
295 struct snd_soc_codec *codec = rtd->codec;
296 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
297 struct i2c_client *i2c = codec->control_data;
298 struct snd_pcm_runtime *master_runtime;
299
300 /* The DAI has shared clocks so if we already have a playback or
301 * capture going then constrain this substream to match it.
302 * TODO: the ssm2602 allows pairs of non-matching PB/REC rates
303 */
304 if (ssm2602->master_substream) {
305 master_runtime = ssm2602->master_substream->runtime;
306 dev_dbg(&i2c->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 u16 mute_reg = snd_soc_read(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE;
347 if (mute)
348 snd_soc_write(codec, SSM2602_APDIGI,
349 mute_reg | APDIGI_ENABLE_DAC_MUTE);
350 else
351 snd_soc_write(codec, SSM2602_APDIGI, mute_reg);
352 return 0;
353}
354
355static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
356 int clk_id, unsigned int freq, int dir)
357{
358 struct snd_soc_codec *codec = codec_dai->codec;
359 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
360 switch (freq) {
361 case 11289600:
362 case 12000000:
363 case 12288000:
364 case 16934400:
365 case 18432000:
366 ssm2602->sysclk = freq;
367 return 0;
368 }
369 return -EINVAL;
370}
371
372static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
373 unsigned int fmt)
374{
375 struct snd_soc_codec *codec = codec_dai->codec;
376 u16 iface = 0;
377
378 /* set master/slave audio interface */
379 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
380 case SND_SOC_DAIFMT_CBM_CFM:
381 iface |= 0x0040;
382 break;
383 case SND_SOC_DAIFMT_CBS_CFS:
384 break;
385 default:
386 return -EINVAL;
387 }
388
389 /* interface format */
390 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
391 case SND_SOC_DAIFMT_I2S:
392 iface |= 0x0002;
393 break;
394 case SND_SOC_DAIFMT_RIGHT_J:
395 break;
396 case SND_SOC_DAIFMT_LEFT_J:
397 iface |= 0x0001;
398 break;
399 case SND_SOC_DAIFMT_DSP_A:
400 iface |= 0x0013;
401 break;
402 case SND_SOC_DAIFMT_DSP_B:
403 iface |= 0x0003;
404 break;
405 default:
406 return -EINVAL;
407 }
408
409 /* clock inversion */
410 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
411 case SND_SOC_DAIFMT_NB_NF:
412 break;
413 case SND_SOC_DAIFMT_IB_IF:
414 iface |= 0x0090;
415 break;
416 case SND_SOC_DAIFMT_IB_NF:
417 iface |= 0x0080;
418 break;
419 case SND_SOC_DAIFMT_NB_IF:
420 iface |= 0x0010;
421 break;
422 default:
423 return -EINVAL;
424 }
425
426 /* set iface */
427 snd_soc_write(codec, SSM2602_IFACE, iface);
428 return 0;
429}
430
431static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
432 enum snd_soc_bias_level level)
433{
434 u16 reg = snd_soc_read(codec, SSM2602_PWR);
435 reg &= ~(PWR_POWER_OFF | PWR_OSC_PDN);
436
437 switch (level) {
438 case SND_SOC_BIAS_ON:
439 /* vref/mid, osc on, dac unmute */
440 snd_soc_write(codec, SSM2602_PWR, reg);
441 break;
442 case SND_SOC_BIAS_PREPARE:
443 break;
444 case SND_SOC_BIAS_STANDBY:
445 /* everything off except vref/vmid, */
446 snd_soc_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN);
447 break;
448 case SND_SOC_BIAS_OFF:
449 /* everything off, dac mute, inactive */
450 snd_soc_write(codec, SSM2602_PWR, 0xffff);
451 break;
452
453 }
454 codec->dapm.bias_level = level;
455 return 0;
456}
457
458#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
459 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
460 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
461
462#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
463 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
464
465static struct snd_soc_dai_ops ssm2602_dai_ops = {
466 .startup = ssm2602_startup,
467 .hw_params = ssm2602_hw_params,
468 .shutdown = ssm2602_shutdown,
469 .digital_mute = ssm2602_mute,
470 .set_sysclk = ssm2602_set_dai_sysclk,
471 .set_fmt = ssm2602_set_dai_fmt,
472};
473
474static struct snd_soc_dai_driver ssm2602_dai = {
475 .name = "ssm2602-hifi",
476 .playback = {
477 .stream_name = "Playback",
478 .channels_min = 2,
479 .channels_max = 2,
480 .rates = SSM2602_RATES,
481 .formats = SSM2602_FORMATS,},
482 .capture = {
483 .stream_name = "Capture",
484 .channels_min = 2,
485 .channels_max = 2,
486 .rates = SSM2602_RATES,
487 .formats = SSM2602_FORMATS,},
488 .ops = &ssm2602_dai_ops,
489};
490
491static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state)
492{
493 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
494 return 0;
495}
496
497static int ssm2602_resume(struct snd_soc_codec *codec)
498{
499 snd_soc_cache_sync(codec);
500
501 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
502
503 return 0;
504}
505
506static int ssm2602_probe(struct snd_soc_codec *codec)
507{
508 struct snd_soc_dapm_context *dapm = &codec->dapm;
509 int ret, reg;
510
511 reg = snd_soc_read(codec, SSM2602_LOUT1V);
512 snd_soc_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH);
513 reg = snd_soc_read(codec, SSM2602_ROUT1V);
514 snd_soc_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH);
515
516 ret = snd_soc_add_controls(codec, ssm2602_snd_controls,
517 ARRAY_SIZE(ssm2602_snd_controls));
518 if (ret)
519 return ret;
520
521 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
522 ARRAY_SIZE(ssm2602_dapm_widgets));
523 if (ret)
524 return ret;
525
526 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
527 ARRAY_SIZE(ssm2602_routes));
528}
529
530static int ssm2604_probe(struct snd_soc_codec *codec)
531{
532 struct snd_soc_dapm_context *dapm = &codec->dapm;
533 int ret;
534
535 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
536 ARRAY_SIZE(ssm2604_dapm_widgets));
537 if (ret)
538 return ret;
539
540 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
541 ARRAY_SIZE(ssm2604_routes));
542}
543
544static int ssm260x_probe(struct snd_soc_codec *codec)
545{
546 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
547 int ret, reg;
548
549 pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
550
551 ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
552 if (ret < 0) {
553 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
554 return ret;
555 }
556
557 ret = ssm2602_reset(codec);
558 if (ret < 0) {
559 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
560 return ret;
561 }
562
563 /* set the update bits */
564 reg = snd_soc_read(codec, SSM2602_LINVOL);
565 snd_soc_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH);
566 reg = snd_soc_read(codec, SSM2602_RINVOL);
567 snd_soc_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH);
568 /*select Line in as default input*/
569 snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
570 APANA_ENABLE_MIC_BOOST);
571
572 switch (ssm2602->type) {
573 case SSM2602:
574 ret = ssm2602_probe(codec);
575 break;
576 case SSM2604:
577 ret = ssm2604_probe(codec);
578 break;
579 }
580
581 return ret;
582}
583
584/* remove everything here */
585static int ssm2602_remove(struct snd_soc_codec *codec)
586{
587 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
588 return 0;
589}
590
591static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
592 .probe = ssm260x_probe,
593 .remove = ssm2602_remove,
594 .suspend = ssm2602_suspend,
595 .resume = ssm2602_resume,
596 .set_bias_level = ssm2602_set_bias_level,
597 .reg_cache_size = ARRAY_SIZE(ssm2602_reg),
598 .reg_word_size = sizeof(u16),
599 .reg_cache_default = ssm2602_reg,
600
601 .controls = ssm260x_snd_controls,
602 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
603 .dapm_widgets = ssm260x_dapm_widgets,
604 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
605 .dapm_routes = ssm260x_routes,
606 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
607};
608
609#if defined(CONFIG_SPI_MASTER)
610static int __devinit ssm2602_spi_probe(struct spi_device *spi)
611{
612 struct ssm2602_priv *ssm2602;
613 int ret;
614
615 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
616 if (ssm2602 == NULL)
617 return -ENOMEM;
618
619 spi_set_drvdata(spi, ssm2602);
620 ssm2602->control_type = SND_SOC_SPI;
621 ssm2602->type = SSM2602;
622
623 ret = snd_soc_register_codec(&spi->dev,
624 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
625 if (ret < 0)
626 kfree(ssm2602);
627 return ret;
628}
629
630static int __devexit ssm2602_spi_remove(struct spi_device *spi)
631{
632 snd_soc_unregister_codec(&spi->dev);
633 kfree(spi_get_drvdata(spi));
634 return 0;
635}
636
637static struct spi_driver ssm2602_spi_driver = {
638 .driver = {
639 .name = "ssm2602",
640 .owner = THIS_MODULE,
641 },
642 .probe = ssm2602_spi_probe,
643 .remove = __devexit_p(ssm2602_spi_remove),
644};
645#endif
646
647#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
648/*
649 * ssm2602 2 wire address is determined by GPIO5
650 * state during powerup.
651 * low = 0x1a
652 * high = 0x1b
653 */
654static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
655 const struct i2c_device_id *id)
656{
657 struct ssm2602_priv *ssm2602;
658 int ret;
659
660 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
661 if (ssm2602 == NULL)
662 return -ENOMEM;
663
664 i2c_set_clientdata(i2c, ssm2602);
665 ssm2602->control_type = SND_SOC_I2C;
666 ssm2602->type = id->driver_data;
667
668 ret = snd_soc_register_codec(&i2c->dev,
669 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
670 if (ret < 0)
671 kfree(ssm2602);
672 return ret;
673}
674
675static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
676{
677 snd_soc_unregister_codec(&client->dev);
678 kfree(i2c_get_clientdata(client));
679 return 0;
680}
681
682static const struct i2c_device_id ssm2602_i2c_id[] = {
683 { "ssm2602", SSM2602 },
684 { "ssm2603", SSM2602 },
685 { "ssm2604", SSM2604 },
686 { }
687};
688MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
689
690/* corgi i2c codec control layer */
691static struct i2c_driver ssm2602_i2c_driver = {
692 .driver = {
693 .name = "ssm2602",
694 .owner = THIS_MODULE,
695 },
696 .probe = ssm2602_i2c_probe,
697 .remove = __devexit_p(ssm2602_i2c_remove),
698 .id_table = ssm2602_i2c_id,
699};
700#endif
701
702
703static int __init ssm2602_modinit(void)
704{
705 int ret = 0;
706
707#if defined(CONFIG_SPI_MASTER)
708 ret = spi_register_driver(&ssm2602_spi_driver);
709 if (ret)
710 return ret;
711#endif
712
713#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
714 ret = i2c_add_driver(&ssm2602_i2c_driver);
715 if (ret)
716 return ret;
717#endif
718
719 return ret;
720}
721module_init(ssm2602_modinit);
722
723static void __exit ssm2602_exit(void)
724{
725#if defined(CONFIG_SPI_MASTER)
726 spi_unregister_driver(&ssm2602_spi_driver);
727#endif
728
729#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
730 i2c_del_driver(&ssm2602_i2c_driver);
731#endif
732}
733module_exit(ssm2602_exit);
734
735MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
736MODULE_AUTHOR("Cliff Cai");
737MODULE_LICENSE("GPL");