?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
mtd: add ECC info for nand_flash_dev{}
[linux/fpc-iii.git] / sound / soc / codecs / ml26124.c
blob26118828782b9b5b4ced3c372ccf128b971cebde
1 /*
2 * Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
16 */
17
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/pm.h>
23 #include <linux/i2c.h>
24 #include <linux/slab.h>
25 #include <linux/platform_device.h>
26 #include <linux/regmap.h>
27 #include <sound/core.h>
28 #include <sound/pcm.h>
29 #include <sound/pcm_params.h>
30 #include <sound/soc.h>
31 #include <sound/tlv.h>
32 #include "ml26124.h"
33
34 #define DVOL_CTL_DVMUTE_ON BIT(4) /* Digital volume MUTE On */
35 #define DVOL_CTL_DVMUTE_OFF 0 /* Digital volume MUTE Off */
36 #define ML26124_SAI_NO_DELAY BIT(1)
37 #define ML26124_SAI_FRAME_SYNC (BIT(5) | BIT(0)) /* For mono (Telecodec) */
38 #define ML26134_CACHESIZE 212
39 #define ML26124_VMID BIT(1)
40 #define ML26124_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 |\
41 SNDRV_PCM_RATE_48000)
42 #define ML26124_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |\
43 SNDRV_PCM_FMTBIT_S32_LE)
44 #define ML26124_NUM_REGISTER ML26134_CACHESIZE
45
46 struct ml26124_priv {
47 u32 mclk;
48 u32 rate;
49 struct regmap *regmap;
50 int clk_in;
51 struct snd_pcm_substream *substream;
52 };
53
54 struct clk_coeff {
55 u32 mclk;
56 u32 rate;
57 u8 pllnl;
58 u8 pllnh;
59 u8 pllml;
60 u8 pllmh;
61 u8 plldiv;
62 };
63
64 /* ML26124 configuration */
65 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7150, 50, 0);
66
67 static const DECLARE_TLV_DB_SCALE(alclvl, -2250, 150, 0);
68 static const DECLARE_TLV_DB_SCALE(mingain, -1200, 600, 0);
69 static const DECLARE_TLV_DB_SCALE(maxgain, -675, 600, 0);
70 static const DECLARE_TLV_DB_SCALE(boost_vol, -1200, 75, 0);
71 static const DECLARE_TLV_DB_SCALE(ngth, -7650, 150, 0);
72
73 static const char * const ml26124_companding[] = {"16bit PCM", "u-law",
74 "A-law"};
75
76 static const struct soc_enum ml26124_adc_companding_enum
77 = SOC_ENUM_SINGLE(ML26124_SAI_TRANS_CTL, 6, 3, ml26124_companding);
78
79 static const struct soc_enum ml26124_dac_companding_enum
80 = SOC_ENUM_SINGLE(ML26124_SAI_RCV_CTL, 6, 3, ml26124_companding);
81
82 static const struct snd_kcontrol_new ml26124_snd_controls[] = {
83 SOC_SINGLE_TLV("Capture Digital Volume", ML26124_RECORD_DIG_VOL, 0,
84 0xff, 1, digital_tlv),
85 SOC_SINGLE_TLV("Playback Digital Volume", ML26124_PLBAK_DIG_VOL, 0,
86 0xff, 1, digital_tlv),
87 SOC_SINGLE_TLV("Digital Boost Volume", ML26124_DIGI_BOOST_VOL, 0,
88 0x3f, 0, boost_vol),
89 SOC_SINGLE_TLV("EQ Band0 Volume", ML26124_EQ_GAIN_BRAND0, 0,
90 0xff, 1, digital_tlv),
91 SOC_SINGLE_TLV("EQ Band1 Volume", ML26124_EQ_GAIN_BRAND1, 0,
92 0xff, 1, digital_tlv),
93 SOC_SINGLE_TLV("EQ Band2 Volume", ML26124_EQ_GAIN_BRAND2, 0,
94 0xff, 1, digital_tlv),
95 SOC_SINGLE_TLV("EQ Band3 Volume", ML26124_EQ_GAIN_BRAND3, 0,
96 0xff, 1, digital_tlv),
97 SOC_SINGLE_TLV("EQ Band4 Volume", ML26124_EQ_GAIN_BRAND4, 0,
98 0xff, 1, digital_tlv),
99 SOC_SINGLE_TLV("ALC Target Level", ML26124_ALC_TARGET_LEV, 0,
100 0xf, 1, alclvl),
101 SOC_SINGLE_TLV("ALC Min Input Volume", ML26124_ALC_MAXMIN_GAIN, 0,
102 7, 0, mingain),
103 SOC_SINGLE_TLV("ALC Max Input Volume", ML26124_ALC_MAXMIN_GAIN, 4,
104 7, 1, maxgain),
105 SOC_SINGLE_TLV("Playback Limiter Min Input Volume",
106 ML26124_PL_MAXMIN_GAIN, 0, 7, 0, mingain),
107 SOC_SINGLE_TLV("Playback Limiter Max Input Volume",
108 ML26124_PL_MAXMIN_GAIN, 4, 7, 1, maxgain),
109 SOC_SINGLE_TLV("Playback Boost Volume", ML26124_PLYBAK_BOST_VOL, 0,
110 0x3f, 0, boost_vol),
111 SOC_SINGLE("DC High Pass Filter Switch", ML26124_FILTER_EN, 0, 1, 0),
112 SOC_SINGLE("Noise High Pass Filter Switch", ML26124_FILTER_EN, 1, 1, 0),
113 SOC_SINGLE("ZC Switch", ML26124_PW_ZCCMP_PW_MNG, 1,
114 1, 0),
115 SOC_SINGLE("EQ Band0 Switch", ML26124_FILTER_EN, 2, 1, 0),
116 SOC_SINGLE("EQ Band1 Switch", ML26124_FILTER_EN, 3, 1, 0),
117 SOC_SINGLE("EQ Band2 Switch", ML26124_FILTER_EN, 4, 1, 0),
118 SOC_SINGLE("EQ Band3 Switch", ML26124_FILTER_EN, 5, 1, 0),
119 SOC_SINGLE("EQ Band4 Switch", ML26124_FILTER_EN, 6, 1, 0),
120 SOC_SINGLE("Play Limiter", ML26124_DVOL_CTL, 0, 1, 0),
121 SOC_SINGLE("Capture Limiter", ML26124_DVOL_CTL, 1, 1, 0),
122 SOC_SINGLE("Digital Volume Fade Switch", ML26124_DVOL_CTL, 3, 1, 0),
123 SOC_SINGLE("Digital Switch", ML26124_DVOL_CTL, 4, 1, 0),
124 SOC_ENUM("DAC Companding", ml26124_dac_companding_enum),
125 SOC_ENUM("ADC Companding", ml26124_adc_companding_enum),
126 };
127
128 static const struct snd_kcontrol_new ml26124_output_mixer_controls[] = {
129 SOC_DAPM_SINGLE("DAC Switch", ML26124_SPK_AMP_OUT, 1, 1, 0),
130 SOC_DAPM_SINGLE("Line in loopback Switch", ML26124_SPK_AMP_OUT, 3, 1,
131 0),
132 SOC_DAPM_SINGLE("PGA Switch", ML26124_SPK_AMP_OUT, 5, 1, 0),
133 };
134
135 /* Input mux */
136 static const char * const ml26124_input_select[] = {"Analog MIC SingleEnded in",
137 "Digital MIC in", "Analog MIC Differential in"};
138
139 static const struct soc_enum ml26124_insel_enum =
140 SOC_ENUM_SINGLE(ML26124_MIC_IF_CTL, 0, 3, ml26124_input_select);
141
142 static const struct snd_kcontrol_new ml26124_input_mux_controls =
143 SOC_DAPM_ENUM("Input Select", ml26124_insel_enum);
144
145 static const struct snd_kcontrol_new ml26124_line_control =
146 SOC_DAPM_SINGLE("Switch", ML26124_PW_LOUT_PW_MNG, 1, 1, 0);
147
148 static const struct snd_soc_dapm_widget ml26124_dapm_widgets[] = {
149 SND_SOC_DAPM_SUPPLY("MCLKEN", ML26124_CLK_EN, 0, 0, NULL, 0),
150 SND_SOC_DAPM_SUPPLY("PLLEN", ML26124_CLK_EN, 1, 0, NULL, 0),
151 SND_SOC_DAPM_SUPPLY("PLLOE", ML26124_CLK_EN, 2, 0, NULL, 0),
152 SND_SOC_DAPM_SUPPLY("MICBIAS", ML26124_PW_REF_PW_MNG, 2, 0, NULL, 0),
153 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
154 &ml26124_output_mixer_controls[0],
155 ARRAY_SIZE(ml26124_output_mixer_controls)),
156 SND_SOC_DAPM_DAC("DAC", "Playback", ML26124_PW_DAC_PW_MNG, 1, 0),
157 SND_SOC_DAPM_ADC("ADC", "Capture", ML26124_PW_IN_PW_MNG, 1, 0),
158 SND_SOC_DAPM_PGA("PGA", ML26124_PW_IN_PW_MNG, 3, 0, NULL, 0),
159 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
160 &ml26124_input_mux_controls),
161 SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
162 &ml26124_line_control),
163 SND_SOC_DAPM_INPUT("MDIN"),
164 SND_SOC_DAPM_INPUT("MIN"),
165 SND_SOC_DAPM_INPUT("LIN"),
166 SND_SOC_DAPM_OUTPUT("SPOUT"),
167 SND_SOC_DAPM_OUTPUT("LOUT"),
168 };
169
170 static const struct snd_soc_dapm_route ml26124_intercon[] = {
171 /* Supply */
172 {"DAC", NULL, "MCLKEN"},
173 {"ADC", NULL, "MCLKEN"},
174 {"DAC", NULL, "PLLEN"},
175 {"ADC", NULL, "PLLEN"},
176 {"DAC", NULL, "PLLOE"},
177 {"ADC", NULL, "PLLOE"},
178
179 /* output mixer */
180 {"Output Mixer", "DAC Switch", "DAC"},
181 {"Output Mixer", "Line in loopback Switch", "LIN"},
182
183 /* outputs */
184 {"LOUT", NULL, "Output Mixer"},
185 {"SPOUT", NULL, "Output Mixer"},
186 {"Line Out Enable", NULL, "LOUT"},
187
188 /* input */
189 {"ADC", NULL, "Input Mux"},
190 {"Input Mux", "Analog MIC SingleEnded in", "PGA"},
191 {"Input Mux", "Analog MIC Differential in", "PGA"},
192 {"PGA", NULL, "MIN"},
193 };
194
195 /* PLLOutputFreq(Hz) = InputMclkFreq(Hz) * PLLM / (PLLN * PLLDIV) */
196 static const struct clk_coeff coeff_div[] = {
197 {12288000, 16000, 0xc, 0x0, 0x20, 0x0, 0x4},
198 {12288000, 32000, 0xc, 0x0, 0x20, 0x0, 0x4},
199 {12288000, 48000, 0xc, 0x0, 0x30, 0x0, 0x4},
200 };
201
202 static struct reg_default ml26124_reg[] = {
203 /* CLOCK control Register */
204 {0x00, 0x00 }, /* Sampling Rate */
205 {0x02, 0x00}, /* PLL NL */
206 {0x04, 0x00}, /* PLLNH */
207 {0x06, 0x00}, /* PLLML */
208 {0x08, 0x00}, /* MLLMH */
209 {0x0a, 0x00}, /* PLLDIV */
210 {0x0c, 0x00}, /* Clock Enable */
211 {0x0e, 0x00}, /* CLK Input/Output Control */
212
213 /* System Control Register */
214 {0x10, 0x00}, /* Software RESET */
215 {0x12, 0x00}, /* Record/Playback Run */
216 {0x14, 0x00}, /* Mic Input/Output control */
217
218 /* Power Management Register */
219 {0x20, 0x00}, /* Reference Power Management */
220 {0x22, 0x00}, /* Input Power Management */
221 {0x24, 0x00}, /* DAC Power Management */
222 {0x26, 0x00}, /* SP-AMP Power Management */
223 {0x28, 0x00}, /* LINEOUT Power Management */
224 {0x2a, 0x00}, /* VIDEO Power Management */
225 {0x2e, 0x00}, /* AC-CMP Power Management */
226
227 /* Analog reference Control Register */
228 {0x30, 0x04}, /* MICBIAS Voltage Control */
229
230 /* Input/Output Amplifier Control Register */
231 {0x32, 0x10}, /* MIC Input Volume */
232 {0x38, 0x00}, /* Mic Boost Volume */
233 {0x3a, 0x33}, /* Speaker AMP Volume */
234 {0x48, 0x00}, /* AMP Volume Control Function Enable */
235 {0x4a, 0x00}, /* Amplifier Volume Fader Control */
236
237 /* Analog Path Control Register */
238 {0x54, 0x00}, /* Speaker AMP Output Control */
239 {0x5a, 0x00}, /* Mic IF Control */
240 {0xe8, 0x01}, /* Mic Select Control */
241
242 /* Audio Interface Control Register */
243 {0x60, 0x00}, /* SAI-Trans Control */
244 {0x62, 0x00}, /* SAI-Receive Control */
245 {0x64, 0x00}, /* SAI Mode select */
246
247 /* DSP Control Register */
248 {0x66, 0x01}, /* Filter Func Enable */
249 {0x68, 0x00}, /* Volume Control Func Enable */
250 {0x6A, 0x00}, /* Mixer & Volume Control*/
251 {0x6C, 0xff}, /* Record Digital Volume */
252 {0x70, 0xff}, /* Playback Digital Volume */
253 {0x72, 0x10}, /* Digital Boost Volume */
254 {0x74, 0xe7}, /* EQ gain Band0 */
255 {0x76, 0xe7}, /* EQ gain Band1 */
256 {0x78, 0xe7}, /* EQ gain Band2 */
257 {0x7A, 0xe7}, /* EQ gain Band3 */
258 {0x7C, 0xe7}, /* EQ gain Band4 */
259 {0x7E, 0x00}, /* HPF2 CutOff*/
260 {0x80, 0x00}, /* EQ Band0 Coef0L */
261 {0x82, 0x00}, /* EQ Band0 Coef0H */
262 {0x84, 0x00}, /* EQ Band0 Coef0L */
263 {0x86, 0x00}, /* EQ Band0 Coef0H */
264 {0x88, 0x00}, /* EQ Band1 Coef0L */
265 {0x8A, 0x00}, /* EQ Band1 Coef0H */
266 {0x8C, 0x00}, /* EQ Band1 Coef0L */
267 {0x8E, 0x00}, /* EQ Band1 Coef0H */
268 {0x90, 0x00}, /* EQ Band2 Coef0L */
269 {0x92, 0x00}, /* EQ Band2 Coef0H */
270 {0x94, 0x00}, /* EQ Band2 Coef0L */
271 {0x96, 0x00}, /* EQ Band2 Coef0H */
272 {0x98, 0x00}, /* EQ Band3 Coef0L */
273 {0x9A, 0x00}, /* EQ Band3 Coef0H */
274 {0x9C, 0x00}, /* EQ Band3 Coef0L */
275 {0x9E, 0x00}, /* EQ Band3 Coef0H */
276 {0xA0, 0x00}, /* EQ Band4 Coef0L */
277 {0xA2, 0x00}, /* EQ Band4 Coef0H */
278 {0xA4, 0x00}, /* EQ Band4 Coef0L */
279 {0xA6, 0x00}, /* EQ Band4 Coef0H */
280
281 /* ALC Control Register */
282 {0xb0, 0x00}, /* ALC Mode */
283 {0xb2, 0x02}, /* ALC Attack Time */
284 {0xb4, 0x03}, /* ALC Decay Time */
285 {0xb6, 0x00}, /* ALC Hold Time */
286 {0xb8, 0x0b}, /* ALC Target Level */
287 {0xba, 0x70}, /* ALC Max/Min Gain */
288 {0xbc, 0x00}, /* Noise Gate Threshold */
289 {0xbe, 0x00}, /* ALC ZeroCross TimeOut */
290
291 /* Playback Limiter Control Register */
292 {0xc0, 0x04}, /* PL Attack Time */
293 {0xc2, 0x05}, /* PL Decay Time */
294 {0xc4, 0x0d}, /* PL Target Level */
295 {0xc6, 0x70}, /* PL Max/Min Gain */
296 {0xc8, 0x10}, /* Playback Boost Volume */
297 {0xca, 0x00}, /* PL ZeroCross TimeOut */
298
299 /* Video Amplifier Control Register */
300 {0xd0, 0x01}, /* VIDEO AMP Gain Control */
301 {0xd2, 0x01}, /* VIDEO AMP Setup 1 */
302 {0xd4, 0x01}, /* VIDEO AMP Control2 */
303 };
304
305 /* Get sampling rate value of sampling rate setting register (0x0) */
306 static inline int get_srate(int rate)
307 {
308 int srate;
309
310 switch (rate) {
311 case 16000:
312 srate = 3;
313 break;
314 case 32000:
315 srate = 6;
316 break;
317 case 48000:
318 srate = 8;
319 break;
320 default:
321 return -EINVAL;
322 }
323 return srate;
324 }
325
326 static inline int get_coeff(int mclk, int rate)
327 {
328 int i;
329
330 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
331 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
332 return i;
333 }
334 return -EINVAL;
335 }
336
337 static int ml26124_hw_params(struct snd_pcm_substream *substream,
338 struct snd_pcm_hw_params *hw_params,
339 struct snd_soc_dai *dai)
340 {
341 struct snd_soc_codec *codec = dai->codec;
342 struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
343 int i = get_coeff(priv->mclk, params_rate(hw_params));
344
345 priv->substream = substream;
346 priv->rate = params_rate(hw_params);
347
348 if (priv->clk_in) {
349 switch (priv->mclk / params_rate(hw_params)) {
350 case 256:
351 snd_soc_update_bits(codec, ML26124_CLK_CTL,
352 BIT(0) | BIT(1), 1);
353 break;
354 case 512:
355 snd_soc_update_bits(codec, ML26124_CLK_CTL,
356 BIT(0) | BIT(1), 2);
357 break;
358 case 1024:
359 snd_soc_update_bits(codec, ML26124_CLK_CTL,
360 BIT(0) | BIT(1), 3);
361 break;
362 default:
363 dev_err(codec->dev, "Unsupported MCLKI\n");
364 break;
365 }
366 } else {
367 snd_soc_update_bits(codec, ML26124_CLK_CTL,
368 BIT(0) | BIT(1), 0);
369 }
370
371 switch (params_rate(hw_params)) {
372 case 16000:
373 snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf,
374 get_srate(params_rate(hw_params)));
375 snd_soc_update_bits(codec, ML26124_PLLNL, 0xff,
376 coeff_div[i].pllnl);
377 snd_soc_update_bits(codec, ML26124_PLLNH, 0x1,
378 coeff_div[i].pllnh);
379 snd_soc_update_bits(codec, ML26124_PLLML, 0xff,
380 coeff_div[i].pllml);
381 snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f,
382 coeff_div[i].pllmh);
383 snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f,
384 coeff_div[i].plldiv);
385 break;
386 case 32000:
387 snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf,
388 get_srate(params_rate(hw_params)));
389 snd_soc_update_bits(codec, ML26124_PLLNL, 0xff,
390 coeff_div[i].pllnl);
391 snd_soc_update_bits(codec, ML26124_PLLNH, 0x1,
392 coeff_div[i].pllnh);
393 snd_soc_update_bits(codec, ML26124_PLLML, 0xff,
394 coeff_div[i].pllml);
395 snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f,
396 coeff_div[i].pllmh);
397 snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f,
398 coeff_div[i].plldiv);
399 break;
400 case 48000:
401 snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf,
402 get_srate(params_rate(hw_params)));
403 snd_soc_update_bits(codec, ML26124_PLLNL, 0xff,
404 coeff_div[i].pllnl);
405 snd_soc_update_bits(codec, ML26124_PLLNH, 0x1,
406 coeff_div[i].pllnh);
407 snd_soc_update_bits(codec, ML26124_PLLML, 0xff,
408 coeff_div[i].pllml);
409 snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f,
410 coeff_div[i].pllmh);
411 snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f,
412 coeff_div[i].plldiv);
413 break;
414 default:
415 pr_err("%s:this rate is no support for ml26124\n", __func__);
416 return -EINVAL;
417 }
418
419 return 0;
420 }
421
422 static int ml26124_mute(struct snd_soc_dai *dai, int mute)
423 {
424 struct snd_soc_codec *codec = dai->codec;
425 struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
426
427 switch (priv->substream->stream) {
428 case SNDRV_PCM_STREAM_CAPTURE:
429 snd_soc_update_bits(codec, ML26124_REC_PLYBAK_RUN, BIT(0), 1);
430 break;
431 case SNDRV_PCM_STREAM_PLAYBACK:
432 snd_soc_update_bits(codec, ML26124_REC_PLYBAK_RUN, BIT(1), 2);
433 break;
434 }
435
436 if (mute)
437 snd_soc_update_bits(codec, ML26124_DVOL_CTL, BIT(4),
438 DVOL_CTL_DVMUTE_ON);
439 else
440 snd_soc_update_bits(codec, ML26124_DVOL_CTL, BIT(4),
441 DVOL_CTL_DVMUTE_OFF);
442
443 return 0;
444 }
445
446 static int ml26124_set_dai_fmt(struct snd_soc_dai *codec_dai,
447 unsigned int fmt)
448 {
449 unsigned char mode;
450 struct snd_soc_codec *codec = codec_dai->codec;
451
452 /* set master/slave audio interface */
453 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
454 case SND_SOC_DAIFMT_CBM_CFM:
455 mode = 1;
456 break;
457 case SND_SOC_DAIFMT_CBS_CFS:
458 mode = 0;
459 break;
460 default:
461 return -EINVAL;
462 }
463 snd_soc_update_bits(codec, ML26124_SAI_MODE_SEL, BIT(0), mode);
464
465 /* interface format */
466 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
467 case SND_SOC_DAIFMT_I2S:
468 break;
469 default:
470 return -EINVAL;
471 }
472
473 /* clock inversion */
474 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
475 case SND_SOC_DAIFMT_NB_NF:
476 break;
477 default:
478 return -EINVAL;
479 }
480
481 return 0;
482 }
483
484 static int ml26124_set_dai_sysclk(struct snd_soc_dai *codec_dai,
485 int clk_id, unsigned int freq, int dir)
486 {
487 struct snd_soc_codec *codec = codec_dai->codec;
488 struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
489
490 switch (clk_id) {
491 case ML26124_USE_PLLOUT:
492 priv->clk_in = ML26124_USE_PLLOUT;
493 break;
494 case ML26124_USE_MCLKI:
495 priv->clk_in = ML26124_USE_MCLKI;
496 break;
497 default:
498 return -EINVAL;
499 }
500
501 priv->mclk = freq;
502
503 return 0;
504 }
505
506 static int ml26124_set_bias_level(struct snd_soc_codec *codec,
507 enum snd_soc_bias_level level)
508 {
509 struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
510
511 switch (level) {
512 case SND_SOC_BIAS_ON:
513 snd_soc_update_bits(codec, ML26124_PW_SPAMP_PW_MNG,
514 ML26124_R26_MASK, ML26124_BLT_PREAMP_ON);
515 msleep(100);
516 snd_soc_update_bits(codec, ML26124_PW_SPAMP_PW_MNG,
517 ML26124_R26_MASK,
518 ML26124_MICBEN_ON | ML26124_BLT_ALL_ON);
519 break;
520 case SND_SOC_BIAS_PREPARE:
521 break;
522 case SND_SOC_BIAS_STANDBY:
523 /* VMID ON */
524 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
525 snd_soc_update_bits(codec, ML26124_PW_REF_PW_MNG,
526 ML26124_VMID, ML26124_VMID);
527 msleep(500);
528 regcache_sync(priv->regmap);
529 }
530 break;
531 case SND_SOC_BIAS_OFF:
532 /* VMID OFF */
533 snd_soc_update_bits(codec, ML26124_PW_REF_PW_MNG,
534 ML26124_VMID, 0);
535 break;
536 }
537 codec->dapm.bias_level = level;
538 return 0;
539 }
540
541 static const struct snd_soc_dai_ops ml26124_dai_ops = {
542 .hw_params = ml26124_hw_params,
543 .digital_mute = ml26124_mute,
544 .set_fmt = ml26124_set_dai_fmt,
545 .set_sysclk = ml26124_set_dai_sysclk,
546 };
547
548 static struct snd_soc_dai_driver ml26124_dai = {
549 .name = "ml26124-hifi",
550 .playback = {
551 .stream_name = "Playback",
552 .channels_min = 1,
553 .channels_max = 2,
554 .rates = ML26124_RATES,
555 .formats = ML26124_FORMATS,},
556 .capture = {
557 .stream_name = "Capture",
558 .channels_min = 1,
559 .channels_max = 2,
560 .rates = ML26124_RATES,
561 .formats = ML26124_FORMATS,},
562 .ops = &ml26124_dai_ops,
563 .symmetric_rates = 1,
564 };
565
566 #ifdef CONFIG_PM
567 static int ml26124_suspend(struct snd_soc_codec *codec)
568 {
569 ml26124_set_bias_level(codec, SND_SOC_BIAS_OFF);
570
571 return 0;
572 }
573
574 static int ml26124_resume(struct snd_soc_codec *codec)
575 {
576 ml26124_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
577
578 return 0;
579 }
580 #else
581 #define ml26124_suspend NULL
582 #define ml26124_resume NULL
583 #endif
584
585 static int ml26124_probe(struct snd_soc_codec *codec)
586 {
587 int ret;
588 struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
589 codec->control_data = priv->regmap;
590
591 ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
592 if (ret < 0) {
593 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
594 return ret;
595 }
596
597 /* Software Reset */
598 snd_soc_update_bits(codec, ML26124_SW_RST, 0x01, 1);
599 snd_soc_update_bits(codec, ML26124_SW_RST, 0x01, 0);
600
601 ml26124_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
602
603 return 0;
604 }
605
606 static struct snd_soc_codec_driver soc_codec_dev_ml26124 = {
607 .probe = ml26124_probe,
608 .suspend = ml26124_suspend,
609 .resume = ml26124_resume,
610 .set_bias_level = ml26124_set_bias_level,
611 .dapm_widgets = ml26124_dapm_widgets,
612 .num_dapm_widgets = ARRAY_SIZE(ml26124_dapm_widgets),
613 .dapm_routes = ml26124_intercon,
614 .num_dapm_routes = ARRAY_SIZE(ml26124_intercon),
615 .controls = ml26124_snd_controls,
616 .num_controls = ARRAY_SIZE(ml26124_snd_controls),
617 };
618
619 static const struct regmap_config ml26124_i2c_regmap = {
620 .val_bits = 8,
621 .reg_bits = 8,
622 .max_register = ML26124_NUM_REGISTER,
623 .reg_defaults = ml26124_reg,
624 .num_reg_defaults = ARRAY_SIZE(ml26124_reg),
625 .cache_type = REGCACHE_RBTREE,
626 .write_flag_mask = 0x01,
627 };
628
629 static int ml26124_i2c_probe(struct i2c_client *i2c,
630 const struct i2c_device_id *id)
631 {
632 struct ml26124_priv *priv;
633 int ret;
634
635 priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
636 if (!priv)
637 return -ENOMEM;
638
639 i2c_set_clientdata(i2c, priv);
640
641 priv->regmap = devm_regmap_init_i2c(i2c, &ml26124_i2c_regmap);
642 if (IS_ERR(priv->regmap)) {
643 ret = PTR_ERR(priv->regmap);
644 dev_err(&i2c->dev, "regmap_init_i2c() failed: %d\n", ret);
645 return ret;
646 }
647
648 return snd_soc_register_codec(&i2c->dev,
649 &soc_codec_dev_ml26124, &ml26124_dai, 1);
650 }
651
652 static int ml26124_i2c_remove(struct i2c_client *client)
653 {
654 snd_soc_unregister_codec(&client->dev);
655 return 0;
656 }
657
658 static const struct i2c_device_id ml26124_i2c_id[] = {
659 { "ml26124", 0 },
660 { }
661 };
662 MODULE_DEVICE_TABLE(i2c, ml26124_i2c_id);
663
664 static struct i2c_driver ml26124_i2c_driver = {
665 .driver = {
666 .name = "ml26124",
667 .owner = THIS_MODULE,
668 },
669 .probe = ml26124_i2c_probe,
670 .remove = ml26124_i2c_remove,
671 .id_table = ml26124_i2c_id,
672 };
673
674 module_i2c_driver(ml26124_i2c_driver);
675
676 MODULE_AUTHOR("Tomoya MORINAGA <tomoya.rohm@gmail.com>");
677 MODULE_DESCRIPTION("LAPIS Semiconductor ML26124 ALSA SoC codec driver");
678 MODULE_LICENSE("GPL");
Linux with added FPC-III support