2 * ak4613.c -- Asahi Kasei ALSA Soc Audio driver
4 * Copyright (C) 2015 Renesas Electronics Corporation
7 * Based on ak4642.c by Kuninori Morimoto
8 * Based on wm8731.c by Richard Purdie
9 * Based on ak4535.c by Richard Purdie
10 * Based on wm8753.c by Liam Girdwood
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
17 #include <linux/clk.h>
18 #include <linux/i2c.h>
19 #include <linux/slab.h>
20 #include <linux/of_device.h>
21 #include <linux/module.h>
22 #include <linux/regmap.h>
23 #include <sound/soc.h>
24 #include <sound/pcm_params.h>
25 #include <sound/tlv.h>
27 #define PW_MGMT1 0x00 /* Power Management 1 */
28 #define PW_MGMT2 0x01 /* Power Management 2 */
29 #define PW_MGMT3 0x02 /* Power Management 3 */
30 #define CTRL1 0x03 /* Control 1 */
31 #define CTRL2 0x04 /* Control 2 */
32 #define DEMP1 0x05 /* De-emphasis1 */
33 #define DEMP2 0x06 /* De-emphasis2 */
34 #define OFD 0x07 /* Overflow Detect */
35 #define ZRD 0x08 /* Zero Detect */
36 #define ICTRL 0x09 /* Input Control */
37 #define OCTRL 0x0a /* Output Control */
38 #define LOUT1 0x0b /* LOUT1 Volume Control */
39 #define ROUT1 0x0c /* ROUT1 Volume Control */
40 #define LOUT2 0x0d /* LOUT2 Volume Control */
41 #define ROUT2 0x0e /* ROUT2 Volume Control */
42 #define LOUT3 0x0f /* LOUT3 Volume Control */
43 #define ROUT3 0x10 /* ROUT3 Volume Control */
44 #define LOUT4 0x11 /* LOUT4 Volume Control */
45 #define ROUT4 0x12 /* ROUT4 Volume Control */
46 #define LOUT5 0x13 /* LOUT5 Volume Control */
47 #define ROUT5 0x14 /* ROUT5 Volume Control */
48 #define LOUT6 0x15 /* LOUT6 Volume Control */
49 #define ROUT6 0x16 /* ROUT6 Volume Control */
70 #define FMT_MASK (0xf8)
73 #define DFS_MASK (3 << 2)
74 #define DFS_NORMAL_SPEED (0 << 2)
75 #define DFS_DOUBLE_SPEED (1 << 2)
76 #define DFS_QUAD_SPEED (2 << 2)
79 #define ICTRL_MASK (0x3)
82 #define OCTRL_MASK (0x3F)
84 struct ak4613_formats {
89 struct ak4613_interface {
90 struct ak4613_formats capture;
91 struct ak4613_formats playback;
96 const struct ak4613_interface *iface;
97 struct snd_pcm_hw_constraint_list constraint;
111 * min : 0xFE : -127.0 dB
114 static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
116 static const struct snd_kcontrol_new ak4613_snd_controls[] = {
117 SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
118 0, 0xFF, 1, out_tlv),
119 SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
120 0, 0xFF, 1, out_tlv),
121 SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
122 0, 0xFF, 1, out_tlv),
123 SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
124 0, 0xFF, 1, out_tlv),
125 SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
126 0, 0xFF, 1, out_tlv),
127 SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
128 0, 0xFF, 1, out_tlv),
131 static const struct reg_default ak4613_reg[] = {
132 { 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
133 { 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
134 { 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
135 { 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
136 { 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
137 { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
140 #define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
141 #define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
142 static const struct ak4613_interface ak4613_iface[] = {
143 /* capture */ /* playback */
144 /* [0] - [2] are not supported */
145 [3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
146 [4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
149 static const struct regmap_config ak4613_regmap_cfg = {
152 .max_register = 0x16,
153 .reg_defaults = ak4613_reg,
154 .num_reg_defaults = ARRAY_SIZE(ak4613_reg),
155 .cache_type = REGCACHE_RBTREE,
158 static const struct of_device_id ak4613_of_match[] = {
159 { .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
162 MODULE_DEVICE_TABLE(of, ak4613_of_match);
164 static const struct i2c_device_id ak4613_i2c_id[] = {
165 { "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
168 MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);
170 static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {
173 SND_SOC_DAPM_OUTPUT("LOUT1"),
174 SND_SOC_DAPM_OUTPUT("LOUT2"),
175 SND_SOC_DAPM_OUTPUT("LOUT3"),
176 SND_SOC_DAPM_OUTPUT("LOUT4"),
177 SND_SOC_DAPM_OUTPUT("LOUT5"),
178 SND_SOC_DAPM_OUTPUT("LOUT6"),
180 SND_SOC_DAPM_OUTPUT("ROUT1"),
181 SND_SOC_DAPM_OUTPUT("ROUT2"),
182 SND_SOC_DAPM_OUTPUT("ROUT3"),
183 SND_SOC_DAPM_OUTPUT("ROUT4"),
184 SND_SOC_DAPM_OUTPUT("ROUT5"),
185 SND_SOC_DAPM_OUTPUT("ROUT6"),
188 SND_SOC_DAPM_INPUT("LIN1"),
189 SND_SOC_DAPM_INPUT("LIN2"),
191 SND_SOC_DAPM_INPUT("RIN1"),
192 SND_SOC_DAPM_INPUT("RIN2"),
195 SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
196 SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
197 SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
198 SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
199 SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
200 SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),
203 SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
204 SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
207 static const struct snd_soc_dapm_route ak4613_intercon[] = {
208 {"LOUT1", NULL, "DAC1"},
209 {"LOUT2", NULL, "DAC2"},
210 {"LOUT3", NULL, "DAC3"},
211 {"LOUT4", NULL, "DAC4"},
212 {"LOUT5", NULL, "DAC5"},
213 {"LOUT6", NULL, "DAC6"},
215 {"ROUT1", NULL, "DAC1"},
216 {"ROUT2", NULL, "DAC2"},
217 {"ROUT3", NULL, "DAC3"},
218 {"ROUT4", NULL, "DAC4"},
219 {"ROUT5", NULL, "DAC5"},
220 {"ROUT6", NULL, "DAC6"},
222 {"DAC1", NULL, "Playback"},
223 {"DAC2", NULL, "Playback"},
224 {"DAC3", NULL, "Playback"},
225 {"DAC4", NULL, "Playback"},
226 {"DAC5", NULL, "Playback"},
227 {"DAC6", NULL, "Playback"},
229 {"Capture", NULL, "ADC1"},
230 {"Capture", NULL, "ADC2"},
232 {"ADC1", NULL, "LIN1"},
233 {"ADC2", NULL, "LIN2"},
235 {"ADC1", NULL, "RIN1"},
236 {"ADC2", NULL, "RIN2"},
239 static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
240 struct snd_soc_dai *dai)
242 struct snd_soc_codec *codec = dai->codec;
243 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
244 struct device *dev = codec->dev;
246 mutex_lock(&priv->lock);
249 dev_err(dev, "unexpected counter error\n");
254 mutex_unlock(&priv->lock);
257 static void ak4613_hw_constraints(struct ak4613_priv *priv,
258 struct snd_pcm_runtime *runtime)
260 static const unsigned int ak4613_rates[] = {
270 struct snd_pcm_hw_constraint_list *constraint = &priv->constraint;
274 constraint->list = ak4613_rates;
275 constraint->mask = 0;
276 constraint->count = 0;
280 * Normal: [32kHz, 48kHz] : 256fs,384fs or 512fs
281 * Double: [64kHz, 96kHz] : 256fs
282 * Quad : [128kHz,192kHz]: 128fs
285 * Normal: [32kHz, 48kHz] : 256fs or 512fs
286 * Double: [64kHz, 96kHz] : 256fs
287 * Quad : [128kHz,192kHz]: 128fs
289 for (i = 0; i < ARRAY_SIZE(ak4613_rates); i++) {
290 /* minimum fs on each range */
291 fs = (ak4613_rates[i] <= 96000) ? 256 : 128;
293 if (priv->sysclk >= ak4613_rates[i] * fs)
294 constraint->count = i + 1;
297 snd_pcm_hw_constraint_list(runtime, 0,
298 SNDRV_PCM_HW_PARAM_RATE, constraint);
301 static int ak4613_dai_startup(struct snd_pcm_substream *substream,
302 struct snd_soc_dai *dai)
304 struct snd_soc_codec *codec = dai->codec;
305 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
309 ak4613_hw_constraints(priv, substream->runtime);
314 static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai,
315 int clk_id, unsigned int freq, int dir)
317 struct snd_soc_codec *codec = codec_dai->codec;
318 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
325 static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
327 struct snd_soc_codec *codec = dai->codec;
328 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
330 fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
333 case SND_SOC_DAIFMT_LEFT_J:
334 case SND_SOC_DAIFMT_I2S:
344 static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
346 unsigned int fmt, unsigned int width)
348 const struct ak4613_formats *fmts;
350 fmts = (is_play) ? &iface->playback : &iface->capture;
352 if (fmts->fmt != fmt)
355 if (fmts->width != width)
361 static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
362 struct snd_pcm_hw_params *params,
363 struct snd_soc_dai *dai)
365 struct snd_soc_codec *codec = dai->codec;
366 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
367 const struct ak4613_interface *iface;
368 struct device *dev = codec->dev;
369 unsigned int width = params_width(params);
370 unsigned int fmt = priv->fmt;
372 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
376 rate = params_rate(params);
381 ctrl2 = DFS_NORMAL_SPEED;
386 ctrl2 = DFS_DOUBLE_SPEED;
390 ctrl2 = DFS_QUAD_SPEED;
399 * It doesn't support TDM at this point
405 mutex_lock(&priv->lock);
407 if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
410 for (i = ARRAY_SIZE(ak4613_iface) - 1; i >= 0; i--) {
411 if (!ak4613_dai_fmt_matching(ak4613_iface + i,
415 iface = ak4613_iface + i;
420 if ((priv->iface == NULL) ||
421 (priv->iface == iface)) {
425 mutex_unlock(&priv->lock);
430 fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);
432 snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
433 snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);
435 snd_soc_update_bits(codec, ICTRL, ICTRL_MASK, priv->ic);
436 snd_soc_update_bits(codec, OCTRL, OCTRL_MASK, priv->oc);
440 dev_warn(dev, "unsupported data width/format combination\n");
445 static int ak4613_set_bias_level(struct snd_soc_codec *codec,
446 enum snd_soc_bias_level level)
451 case SND_SOC_BIAS_ON:
454 case SND_SOC_BIAS_PREPARE:
455 mgmt1 |= PMADC | PMDAC;
457 case SND_SOC_BIAS_STANDBY:
460 case SND_SOC_BIAS_OFF:
465 snd_soc_write(codec, PW_MGMT1, mgmt1);
470 static const struct snd_soc_dai_ops ak4613_dai_ops = {
471 .startup = ak4613_dai_startup,
472 .shutdown = ak4613_dai_shutdown,
473 .set_sysclk = ak4613_dai_set_sysclk,
474 .set_fmt = ak4613_dai_set_fmt,
475 .hw_params = ak4613_dai_hw_params,
478 #define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\
479 SNDRV_PCM_RATE_44100 |\
480 SNDRV_PCM_RATE_48000 |\
481 SNDRV_PCM_RATE_64000 |\
482 SNDRV_PCM_RATE_88200 |\
483 SNDRV_PCM_RATE_96000 |\
484 SNDRV_PCM_RATE_176400 |\
485 SNDRV_PCM_RATE_192000)
486 #define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S24_LE)
488 static struct snd_soc_dai_driver ak4613_dai = {
489 .name = "ak4613-hifi",
491 .stream_name = "Playback",
494 .rates = AK4613_PCM_RATE,
495 .formats = AK4613_PCM_FMTBIT,
498 .stream_name = "Capture",
501 .rates = AK4613_PCM_RATE,
502 .formats = AK4613_PCM_FMTBIT,
504 .ops = &ak4613_dai_ops,
505 .symmetric_rates = 1,
508 static int ak4613_suspend(struct snd_soc_codec *codec)
510 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
512 regcache_cache_only(regmap, true);
513 regcache_mark_dirty(regmap);
517 static int ak4613_resume(struct snd_soc_codec *codec)
519 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
521 regcache_cache_only(regmap, false);
522 return regcache_sync(regmap);
525 static const struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
526 .suspend = ak4613_suspend,
527 .resume = ak4613_resume,
528 .set_bias_level = ak4613_set_bias_level,
529 .component_driver = {
530 .controls = ak4613_snd_controls,
531 .num_controls = ARRAY_SIZE(ak4613_snd_controls),
532 .dapm_widgets = ak4613_dapm_widgets,
533 .num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
534 .dapm_routes = ak4613_intercon,
535 .num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
539 static void ak4613_parse_of(struct ak4613_priv *priv,
542 struct device_node *np = dev->of_node;
547 for (i = 0; i < 2; i++) {
548 snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
549 if (!of_get_property(np, prop, NULL))
554 for (i = 0; i < 6; i++) {
555 snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
556 if (!of_get_property(np, prop, NULL))
561 static int ak4613_i2c_probe(struct i2c_client *i2c,
562 const struct i2c_device_id *id)
564 struct device *dev = &i2c->dev;
565 struct device_node *np = dev->of_node;
566 const struct regmap_config *regmap_cfg;
567 struct regmap *regmap;
568 struct ak4613_priv *priv;
572 const struct of_device_id *of_id;
574 of_id = of_match_device(ak4613_of_match, dev);
576 regmap_cfg = of_id->data;
578 regmap_cfg = (const struct regmap_config *)id->driver_data;
584 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
588 ak4613_parse_of(priv, dev);
594 mutex_init(&priv->lock);
596 i2c_set_clientdata(i2c, priv);
598 regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
600 return PTR_ERR(regmap);
602 return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
606 static int ak4613_i2c_remove(struct i2c_client *client)
608 snd_soc_unregister_codec(&client->dev);
612 static struct i2c_driver ak4613_i2c_driver = {
614 .name = "ak4613-codec",
615 .of_match_table = ak4613_of_match,
617 .probe = ak4613_i2c_probe,
618 .remove = ak4613_i2c_remove,
619 .id_table = ak4613_i2c_id,
622 module_i2c_driver(ak4613_i2c_driver);
624 MODULE_DESCRIPTION("Soc AK4613 driver");
626 MODULE_LICENSE("GPL v2");