2 * ak4613.c -- Asahi Kasei ALSA Soc Audio driver
4 * Copyright (C) 2015 Renesas Electronics Corporation
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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_NORMAL_SPEED (0 << 2)
74 #define DFS_DOUBLE_SPEED (1 << 2)
75 #define DFS_QUAD_SPEED (2 << 2)
85 struct ak4613_formats {
90 struct ak4613_interface {
91 struct ak4613_formats capture;
92 struct ak4613_formats playback;
100 * min : 0xFE : -127.0 dB
103 static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
105 static const struct snd_kcontrol_new ak4613_snd_controls[] = {
106 SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
107 0, 0xFF, 1, out_tlv),
108 SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
109 0, 0xFF, 1, out_tlv),
110 SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
111 0, 0xFF, 1, out_tlv),
112 SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
113 0, 0xFF, 1, out_tlv),
114 SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
115 0, 0xFF, 1, out_tlv),
116 SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
117 0, 0xFF, 1, out_tlv),
120 static const struct reg_default ak4613_reg[] = {
121 { 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
122 { 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
123 { 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
124 { 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
125 { 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
126 { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
129 #define AUDIO_IFACE_IDX_TO_VAL(i) (i << 3)
130 #define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
131 static const struct ak4613_interface ak4613_iface[] = {
132 /* capture */ /* playback */
133 [0] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(16, RIGHT_J) },
134 [1] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(20, RIGHT_J) },
135 [2] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, RIGHT_J) },
136 [3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
137 [4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
140 static const struct regmap_config ak4613_regmap_cfg = {
143 .max_register = 0x16,
144 .reg_defaults = ak4613_reg,
145 .num_reg_defaults = ARRAY_SIZE(ak4613_reg),
146 .cache_type = REGCACHE_RBTREE,
149 static const struct of_device_id ak4613_of_match[] = {
150 { .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
153 MODULE_DEVICE_TABLE(of, ak4613_of_match);
155 static const struct i2c_device_id ak4613_i2c_id[] = {
156 { "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
159 MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);
161 static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {
164 SND_SOC_DAPM_OUTPUT("LOUT1"),
165 SND_SOC_DAPM_OUTPUT("LOUT2"),
166 SND_SOC_DAPM_OUTPUT("LOUT3"),
167 SND_SOC_DAPM_OUTPUT("LOUT4"),
168 SND_SOC_DAPM_OUTPUT("LOUT5"),
169 SND_SOC_DAPM_OUTPUT("LOUT6"),
171 SND_SOC_DAPM_OUTPUT("ROUT1"),
172 SND_SOC_DAPM_OUTPUT("ROUT2"),
173 SND_SOC_DAPM_OUTPUT("ROUT3"),
174 SND_SOC_DAPM_OUTPUT("ROUT4"),
175 SND_SOC_DAPM_OUTPUT("ROUT5"),
176 SND_SOC_DAPM_OUTPUT("ROUT6"),
179 SND_SOC_DAPM_INPUT("LIN1"),
180 SND_SOC_DAPM_INPUT("LIN2"),
182 SND_SOC_DAPM_INPUT("RIN1"),
183 SND_SOC_DAPM_INPUT("RIN2"),
186 SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
187 SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
188 SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
189 SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
190 SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
191 SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),
194 SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
195 SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
198 static const struct snd_soc_dapm_route ak4613_intercon[] = {
199 {"LOUT1", NULL, "DAC1"},
200 {"LOUT2", NULL, "DAC2"},
201 {"LOUT3", NULL, "DAC3"},
202 {"LOUT4", NULL, "DAC4"},
203 {"LOUT5", NULL, "DAC5"},
204 {"LOUT6", NULL, "DAC6"},
206 {"ROUT1", NULL, "DAC1"},
207 {"ROUT2", NULL, "DAC2"},
208 {"ROUT3", NULL, "DAC3"},
209 {"ROUT4", NULL, "DAC4"},
210 {"ROUT5", NULL, "DAC5"},
211 {"ROUT6", NULL, "DAC6"},
213 {"DAC1", NULL, "Playback"},
214 {"DAC2", NULL, "Playback"},
215 {"DAC3", NULL, "Playback"},
216 {"DAC4", NULL, "Playback"},
217 {"DAC5", NULL, "Playback"},
218 {"DAC6", NULL, "Playback"},
220 {"Capture", NULL, "ADC1"},
221 {"Capture", NULL, "ADC2"},
223 {"ADC1", NULL, "LIN1"},
224 {"ADC2", NULL, "LIN2"},
226 {"ADC1", NULL, "RIN1"},
227 {"ADC2", NULL, "RIN2"},
230 static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
231 struct snd_soc_dai *dai)
233 struct snd_soc_codec *codec = dai->codec;
234 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
235 struct device *dev = codec->dev;
237 mutex_lock(&priv->lock);
240 dev_err(dev, "unexpected counter error\n");
244 priv->fmt_ctrl = NO_FMT;
245 mutex_unlock(&priv->lock);
248 static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
250 struct snd_soc_codec *codec = dai->codec;
251 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
253 fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
256 case SND_SOC_DAIFMT_RIGHT_J:
257 case SND_SOC_DAIFMT_LEFT_J:
258 case SND_SOC_DAIFMT_I2S:
269 static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
270 struct snd_pcm_hw_params *params,
271 struct snd_soc_dai *dai)
273 struct snd_soc_codec *codec = dai->codec;
274 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
275 const struct ak4613_formats *fmts;
276 struct device *dev = codec->dev;
277 unsigned int width = params_width(params);
278 unsigned int fmt = priv->fmt;
280 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
284 rate = params_rate(params);
289 ctrl2 = DFS_NORMAL_SPEED;
293 ctrl2 = DFS_DOUBLE_SPEED;
297 ctrl2 = DFS_QUAD_SPEED;
306 * It doesn't support TDM at this point
309 for (i = 0; i < ARRAY_SIZE(ak4613_iface); i++) {
310 fmts = (is_play) ? &ak4613_iface[i].playback :
311 &ak4613_iface[i].capture;
313 if (fmts->fmt != fmt)
316 if (fmt == SND_SOC_DAIFMT_RIGHT_J) {
317 if (fmts->width != width)
320 if (fmts->width < width)
324 fmt_ctrl = AUDIO_IFACE_IDX_TO_VAL(i);
329 if (fmt_ctrl == NO_FMT)
332 mutex_lock(&priv->lock);
333 if ((priv->fmt_ctrl == NO_FMT) ||
334 (priv->fmt_ctrl == fmt_ctrl)) {
335 priv->fmt_ctrl = fmt_ctrl;
339 mutex_unlock(&priv->lock);
344 snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
345 snd_soc_write(codec, CTRL2, ctrl2);
349 dev_warn(dev, "unsupported data width/format combination\n");
354 static int ak4613_set_bias_level(struct snd_soc_codec *codec,
355 enum snd_soc_bias_level level)
360 case SND_SOC_BIAS_ON:
363 case SND_SOC_BIAS_PREPARE:
364 mgmt1 |= PMADC | PMDAC;
366 case SND_SOC_BIAS_STANDBY:
369 case SND_SOC_BIAS_OFF:
374 snd_soc_write(codec, PW_MGMT1, mgmt1);
379 static const struct snd_soc_dai_ops ak4613_dai_ops = {
380 .shutdown = ak4613_dai_shutdown,
381 .set_fmt = ak4613_dai_set_fmt,
382 .hw_params = ak4613_dai_hw_params,
385 #define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\
386 SNDRV_PCM_RATE_44100 |\
387 SNDRV_PCM_RATE_48000 |\
388 SNDRV_PCM_RATE_64000 |\
389 SNDRV_PCM_RATE_88200 |\
390 SNDRV_PCM_RATE_96000 |\
391 SNDRV_PCM_RATE_176400 |\
392 SNDRV_PCM_RATE_192000)
393 #define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S16_LE |\
394 SNDRV_PCM_FMTBIT_S24_LE)
396 static struct snd_soc_dai_driver ak4613_dai = {
397 .name = "ak4613-hifi",
399 .stream_name = "Playback",
402 .rates = AK4613_PCM_RATE,
403 .formats = AK4613_PCM_FMTBIT,
406 .stream_name = "Capture",
409 .rates = AK4613_PCM_RATE,
410 .formats = AK4613_PCM_FMTBIT,
412 .ops = &ak4613_dai_ops,
413 .symmetric_rates = 1,
416 static int ak4613_resume(struct snd_soc_codec *codec)
418 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
420 regcache_mark_dirty(regmap);
421 return regcache_sync(regmap);
424 static struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
425 .resume = ak4613_resume,
426 .set_bias_level = ak4613_set_bias_level,
427 .controls = ak4613_snd_controls,
428 .num_controls = ARRAY_SIZE(ak4613_snd_controls),
429 .dapm_widgets = ak4613_dapm_widgets,
430 .num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
431 .dapm_routes = ak4613_intercon,
432 .num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
435 static int ak4613_i2c_probe(struct i2c_client *i2c,
436 const struct i2c_device_id *id)
438 struct device *dev = &i2c->dev;
439 struct device_node *np = dev->of_node;
440 const struct regmap_config *regmap_cfg;
441 struct regmap *regmap;
442 struct ak4613_priv *priv;
446 const struct of_device_id *of_id;
448 of_id = of_match_device(ak4613_of_match, dev);
450 regmap_cfg = of_id->data;
452 regmap_cfg = (const struct regmap_config *)id->driver_data;
458 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
462 priv->fmt_ctrl = NO_FMT;
465 mutex_init(&priv->lock);
467 i2c_set_clientdata(i2c, priv);
469 regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
471 return PTR_ERR(regmap);
473 return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
477 static int ak4613_i2c_remove(struct i2c_client *client)
479 snd_soc_unregister_codec(&client->dev);
483 static struct i2c_driver ak4613_i2c_driver = {
485 .name = "ak4613-codec",
486 .owner = THIS_MODULE,
487 .of_match_table = ak4613_of_match,
489 .probe = ak4613_i2c_probe,
490 .remove = ak4613_i2c_remove,
491 .id_table = ak4613_i2c_id,
494 module_i2c_driver(ak4613_i2c_driver);
496 MODULE_DESCRIPTION("Soc AK4613 driver");
497 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
498 MODULE_LICENSE("GPL v2");