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11#include <linux/delay.h>
12#include <linux/i2c.h>
13#include <linux/module.h>
14#include <linux/regmap.h>
15#include <sound/pcm_params.h>
16#include <sound/soc.h>
17#include <sound/tlv.h>
18#include "max9867.h"
19
20static const char *const max9867_spmode[] = {
21 "Stereo Diff", "Mono Diff",
22 "Stereo Cap", "Mono Cap",
23 "Stereo Single", "Mono Single",
24 "Stereo Single Fast", "Mono Single Fast"
25};
26static const char *const max9867_sidetone_text[] = {
27 "None", "Left", "Right", "LeftRight", "LeftRightDiv2",
28};
29static const char *const max9867_filter_text[] = {"IIR", "FIR"};
30
31static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
32 max9867_filter_text);
33static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
34 max9867_spmode);
35static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6,
36 max9867_sidetone_text);
37static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0);
38static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1);
39static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1);
40static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1);
41static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max98088_micboost_tlv,
42 0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),
43 2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
44);
45
46static const struct snd_kcontrol_new max9867_snd_controls[] = {
47 SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL,
48 MAX9867_RIGHTVOL, 0, 63, 1),
49 SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN,
50 MAX9867_RIGHTMICGAIN,
51 0, 15, 1, max9860_capture_tlv),
52 SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN,
53 MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv),
54 SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN,
55 MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv),
56 SOC_ENUM("Digital Sidetone Src", max9867_sidetone),
57 SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1),
58 SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0),
59 SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1),
60 SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL,
61 4, 15, 1, max9860_adc_left_tlv),
62 SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL,
63 0, 15, 1, max9860_adc_right_tlv),
64 SOC_ENUM("Speaker Mode", max9867_spkmode),
65 SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
66 SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0),
67 SOC_ENUM("DSP Filter", max9867_filter),
68};
69
70static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"};
71
72static SOC_ENUM_SINGLE_DECL(max9867_mux_enum,
73 MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT,
74 max9867_mux);
75
76static const struct snd_kcontrol_new max9867_dapm_mux_controls =
77 SOC_DAPM_ENUM("Route", max9867_mux_enum);
78
79static const struct snd_kcontrol_new max9867_left_dapm_control =
80 SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0);
81static const struct snd_kcontrol_new max9867_right_dapm_control =
82 SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0);
83static const struct snd_kcontrol_new max9867_line_dapm_control =
84 SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1);
85
86static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
87 SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
88 SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0),
89 SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0),
90 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
91 SND_SOC_DAPM_OUTPUT("HPOUT"),
92
93 SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
94 SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0),
95 SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0),
96 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
97 &max9867_dapm_mux_controls),
98
99 SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
100 SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1,
101 &max9867_left_dapm_control),
102 SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1,
103 &max9867_right_dapm_control),
104 SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0,
105 &max9867_line_dapm_control),
106 SND_SOC_DAPM_INPUT("LINE_IN"),
107};
108
109static const struct snd_soc_dapm_route max9867_audio_map[] = {
110 {"Left DAC", NULL, "DAI_OUT"},
111 {"Right DAC", NULL, "DAI_OUT"},
112 {"Output Mixer", NULL, "Left DAC"},
113 {"Output Mixer", NULL, "Right DAC"},
114 {"HPOUT", NULL, "Output Mixer"},
115
116 {"Left ADC", NULL, "DAI_IN"},
117 {"Right ADC", NULL, "DAI_IN"},
118 {"Input Mixer", NULL, "Left ADC"},
119 {"Input Mixer", NULL, "Right ADC"},
120 {"Input Mux", "Line", "Input Mixer"},
121 {"Input Mux", "Mic", "Input Mixer"},
122 {"Input Mux", "Mic_Line", "Input Mixer"},
123 {"Right Line", "Switch", "Input Mux"},
124 {"Left Line", "Switch", "Input Mux"},
125 {"LINE_IN", NULL, "Left Line"},
126 {"LINE_IN", NULL, "Right Line"},
127};
128
129enum rates {
130 pcm_rate_8, pcm_rate_16, pcm_rate_24,
131 pcm_rate_32, pcm_rate_44,
132 pcm_rate_48, max_pcm_rate,
133};
134
135struct ni_div_rates {
136 u32 mclk;
137 u16 ni[max_pcm_rate];
138} ni_div[] = {
139 {11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} },
140 {12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} },
141 {12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} },
142 {13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} },
143 {19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} },
144 {24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} },
145 {26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} },
146 {27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} },
147};
148
149static inline int get_ni_value(int mclk, int rate)
150{
151 int i, ret = 0;
152
153
154 for (i = 0; i < ARRAY_SIZE(ni_div); i++) {
155 if (ni_div[i].mclk >= mclk)
156 break;
157 }
158 if (i == ARRAY_SIZE(ni_div))
159 return -EINVAL;
160
161 switch (rate) {
162 case 8000:
163 return ni_div[i].ni[pcm_rate_8];
164 case 16000:
165 return ni_div[i].ni[pcm_rate_16];
166 case 32000:
167 return ni_div[i].ni[pcm_rate_32];
168 case 44100:
169 return ni_div[i].ni[pcm_rate_44];
170 case 48000:
171 return ni_div[i].ni[pcm_rate_48];
172 default:
173 pr_err("%s wrong rate %d\n", __func__, rate);
174 ret = -EINVAL;
175 }
176 return ret;
177}
178
179static int max9867_dai_hw_params(struct snd_pcm_substream *substream,
180 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
181{
182 struct snd_soc_codec *codec = dai->codec;
183 struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
184 unsigned int ni_h, ni_l;
185 int value;
186
187 value = get_ni_value(max9867->sysclk, params_rate(params));
188 if (value < 0)
189 return value;
190
191 ni_h = (0xFF00 & value) >> 8;
192 ni_l = 0x00FF & value;
193
194 regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
195 MAX9867_NI_HIGH_MASK, ni_h);
196 regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
197 MAX9867_NI_LOW_MASK, ni_l);
198 if (!max9867->master) {
199
200
201
202
203 regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
204 MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
205 regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
206 MAX9867_PLL, MAX9867_PLL);
207 } else {
208 unsigned long int bclk_rate, pclk_bclk_ratio;
209 int bclk_value;
210
211 bclk_rate = params_rate(params) * 2 * params_width(params);
212 pclk_bclk_ratio = max9867->pclk/bclk_rate;
213 switch (params_width(params)) {
214 case 8:
215 case 16:
216 switch (pclk_bclk_ratio) {
217 case 2:
218 bclk_value = MAX9867_IFC1B_PCLK_2;
219 break;
220 case 4:
221 bclk_value = MAX9867_IFC1B_PCLK_4;
222 break;
223 case 8:
224 bclk_value = MAX9867_IFC1B_PCLK_8;
225 break;
226 case 16:
227 bclk_value = MAX9867_IFC1B_PCLK_16;
228 break;
229 default:
230 dev_err(codec->dev,
231 "unsupported sampling rate\n");
232 return -EINVAL;
233 }
234 break;
235 case 24:
236 bclk_value = MAX9867_IFC1B_24BIT;
237 break;
238 case 32:
239 bclk_value = MAX9867_IFC1B_32BIT;
240 break;
241 default:
242 dev_err(codec->dev, "unsupported sampling rate\n");
243 return -EINVAL;
244 }
245 regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
246 MAX9867_IFC1B_BCLK_MASK, bclk_value);
247 }
248 return 0;
249}
250
251static int max9867_prepare(struct snd_pcm_substream *substream,
252 struct snd_soc_dai *dai)
253{
254 struct snd_soc_codec *codec = dai->codec;
255 struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
256
257 regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
258 MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
259 return 0;
260}
261
262static int max9867_mute(struct snd_soc_dai *dai, int mute)
263{
264 struct snd_soc_codec *codec = dai->codec;
265 struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
266
267 if (mute)
268 regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
269 MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK);
270 else
271 regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
272 MAX9867_DAC_MUTE_MASK, 0);
273 return 0;
274}
275
276static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,
277 int clk_id, unsigned int freq, int dir)
278{
279 struct snd_soc_codec *codec = codec_dai->codec;
280 struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
281 int value = 0;
282
283
284 if (freq >= 10000000 && freq <= 20000000) {
285 value |= MAX9867_PSCLK_10_20;
286 max9867->pclk = freq;
287 } else if (freq >= 20000000 && freq <= 40000000) {
288 value |= MAX9867_PSCLK_20_40;
289 max9867->pclk = freq/2;
290 } else if (freq >= 40000000 && freq <= 60000000) {
291 value |= MAX9867_PSCLK_40_60;
292 max9867->pclk = freq/4;
293 } else {
294 pr_err("bad clock frequency %d", freq);
295 return -EINVAL;
296 }
297 value = value << MAX9867_PSCLK_SHIFT;
298 max9867->sysclk = freq;
299
300 value &= ~MAX9867_FREQ_MASK;
301 regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
302 MAX9867_PSCLK_MASK, value);
303 return 0;
304}
305
306static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
307 unsigned int fmt)
308{
309 struct snd_soc_codec *codec = codec_dai->codec;
310 struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
311 u8 iface1A = 0, iface1B = 0;
312 int ret;
313
314 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
315 case SND_SOC_DAIFMT_CBM_CFM:
316 max9867->master = 1;
317 iface1A |= MAX9867_MASTER;
318 break;
319 case SND_SOC_DAIFMT_CBS_CFS:
320 max9867->master = 0;
321 iface1A &= ~MAX9867_MASTER;
322 break;
323 default:
324 return -EINVAL;
325 }
326
327
328 iface1A |= MAX9867_I2S_DLY;
329
330 iface1A |= MAX9867_SDOUT_HIZ;
331
332
333 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
334 case SND_SOC_DAIFMT_NB_NF:
335 break;
336 case SND_SOC_DAIFMT_IB_IF:
337 iface1A |= MAX9867_WCI_MODE | MAX9867_BCI_MODE;
338 break;
339 case SND_SOC_DAIFMT_IB_NF:
340 iface1A |= MAX9867_BCI_MODE;
341 break;
342 case SND_SOC_DAIFMT_NB_IF:
343 iface1A |= MAX9867_WCI_MODE;
344 break;
345 default:
346 return -EINVAL;
347 }
348
349 ret = regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
350 ret = regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B);
351 return 0;
352}
353
354static struct snd_soc_dai_ops max9867_dai_ops = {
355 .set_fmt = max9867_dai_set_fmt,
356 .set_sysclk = max9867_set_dai_sysclk,
357 .prepare = max9867_prepare,
358 .digital_mute = max9867_mute,
359 .hw_params = max9867_dai_hw_params,
360};
361
362#define MAX9867_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
363 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
364#define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
365
366static struct snd_soc_dai_driver max9867_dai[] = {
367 {
368 .name = "max9867-aif1",
369 .playback = {
370 .stream_name = "HiFi Playback",
371 .channels_min = 1,
372 .channels_max = 2,
373 .rates = MAX9867_RATES,
374 .formats = MAX9867_FORMATS,
375 },
376 .capture = {
377 .stream_name = "HiFi Capture",
378 .channels_min = 1,
379 .channels_max = 2,
380 .rates = MAX9867_RATES,
381 .formats = MAX9867_FORMATS,
382 },
383 .ops = &max9867_dai_ops,
384 }
385};
386
387#ifdef CONFIG_PM_SLEEP
388static int max9867_suspend(struct device *dev)
389{
390 struct max9867_priv *max9867 = dev_get_drvdata(dev);
391
392
393 regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
394 MAX9867_SHTDOWN_MASK, ~MAX9867_SHTDOWN_MASK);
395 return 0;
396}
397
398static int max9867_resume(struct device *dev)
399{
400 struct max9867_priv *max9867 = dev_get_drvdata(dev);
401
402 regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
403 MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
404 return 0;
405}
406#endif
407
408static int max9867_probe(struct snd_soc_codec *codec)
409{
410 struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
411
412 dev_dbg(codec->dev, "max98090_probe\n");
413 max9867->codec = codec;
414 return 0;
415}
416
417static struct snd_soc_codec_driver max9867_codec = {
418 .probe = max9867_probe,
419 .component_driver = {
420 .controls = max9867_snd_controls,
421 .num_controls = ARRAY_SIZE(max9867_snd_controls),
422 .dapm_routes = max9867_audio_map,
423 .num_dapm_routes = ARRAY_SIZE(max9867_audio_map),
424 .dapm_widgets = max9867_dapm_widgets,
425 .num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),
426 },
427};
428
429static bool max9867_volatile_register(struct device *dev, unsigned int reg)
430{
431 switch (reg) {
432 case MAX9867_STATUS:
433 case MAX9867_JACKSTATUS:
434 case MAX9867_AUXHIGH:
435 case MAX9867_AUXLOW:
436 return true;
437 default:
438 return false;
439 }
440}
441
442static const struct reg_default max9867_reg[] = {
443 { 0x04, 0x00 },
444 { 0x05, 0x00 },
445 { 0x06, 0x00 },
446 { 0x07, 0x00 },
447 { 0x08, 0x00 },
448 { 0x09, 0x00 },
449 { 0x0A, 0x00 },
450 { 0x0B, 0x00 },
451 { 0x0C, 0x00 },
452 { 0x0D, 0x00 },
453 { 0x0E, 0x00 },
454 { 0x0F, 0x00 },
455 { 0x10, 0x00 },
456 { 0x11, 0x00 },
457 { 0x12, 0x00 },
458 { 0x13, 0x00 },
459 { 0x14, 0x00 },
460 { 0x15, 0x00 },
461 { 0x16, 0x00 },
462 { 0x17, 0x00 },
463};
464
465static const struct regmap_config max9867_regmap = {
466 .reg_bits = 8,
467 .val_bits = 8,
468 .max_register = MAX9867_REVISION,
469 .reg_defaults = max9867_reg,
470 .num_reg_defaults = ARRAY_SIZE(max9867_reg),
471 .volatile_reg = max9867_volatile_register,
472 .cache_type = REGCACHE_RBTREE,
473};
474
475static int max9867_i2c_probe(struct i2c_client *i2c,
476 const struct i2c_device_id *id)
477{
478 struct max9867_priv *max9867;
479 int ret = 0, reg;
480
481 max9867 = devm_kzalloc(&i2c->dev,
482 sizeof(*max9867), GFP_KERNEL);
483 if (!max9867)
484 return -ENOMEM;
485
486 i2c_set_clientdata(i2c, max9867);
487 max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
488 if (IS_ERR(max9867->regmap)) {
489 ret = PTR_ERR(max9867->regmap);
490 dev_err(&i2c->dev,
491 "Failed to allocate regmap: %d\n", ret);
492 return ret;
493 }
494 ret = regmap_read(max9867->regmap,
495 MAX9867_REVISION, ®);
496 if (ret < 0) {
497 dev_err(&i2c->dev, "Failed to read: %d\n", ret);
498 return ret;
499 }
500 dev_info(&i2c->dev, "device revision: %x\n", reg);
501 ret = snd_soc_register_codec(&i2c->dev, &max9867_codec,
502 max9867_dai, ARRAY_SIZE(max9867_dai));
503 if (ret < 0) {
504 dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
505 return ret;
506 }
507 return ret;
508}
509
510static int max9867_i2c_remove(struct i2c_client *client)
511{
512 snd_soc_unregister_codec(&client->dev);
513 return 0;
514}
515
516static const struct i2c_device_id max9867_i2c_id[] = {
517 { "max9867", 0 },
518 { }
519};
520
521static const struct of_device_id max9867_of_match[] = {
522 { .compatible = "maxim,max9867", },
523 { }
524};
525
526MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);
527
528static const struct dev_pm_ops max9867_pm_ops = {
529 SET_SYSTEM_SLEEP_PM_OPS(max9867_suspend, max9867_resume)
530};
531
532static struct i2c_driver max9867_i2c_driver = {
533 .driver = {
534 .name = "max9867",
535 .of_match_table = of_match_ptr(max9867_of_match),
536 .pm = &max9867_pm_ops,
537 },
538 .probe = max9867_i2c_probe,
539 .remove = max9867_i2c_remove,
540 .id_table = max9867_i2c_id,
541};
542
543module_i2c_driver(max9867_i2c_driver);
544
545MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");
546MODULE_DESCRIPTION("ALSA SoC MAX9867 driver");
547MODULE_LICENSE("GPL");
548
