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_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;
109 * min : 0xFE : -127.0 dB
112 static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
114 static const struct snd_kcontrol_new ak4613_snd_controls[] = {
115 SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
116 0, 0xFF, 1, out_tlv),
117 SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
118 0, 0xFF, 1, out_tlv),
119 SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
120 0, 0xFF, 1, out_tlv),
121 SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
122 0, 0xFF, 1, out_tlv),
123 SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
124 0, 0xFF, 1, out_tlv),
125 SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
126 0, 0xFF, 1, out_tlv),
129 static const struct reg_default ak4613_reg[] = {
130 { 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
131 { 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
132 { 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
133 { 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
134 { 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
135 { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
138 #define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
139 #define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
140 static const struct ak4613_interface ak4613_iface[] = {
141 /* capture */ /* playback */
142 [0] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(16, RIGHT_J) },
143 [1] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(20, RIGHT_J) },
144 [2] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, RIGHT_J) },
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 int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
259 struct snd_soc_codec *codec = dai->codec;
260 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
262 fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
265 case SND_SOC_DAIFMT_RIGHT_J:
266 case SND_SOC_DAIFMT_LEFT_J:
267 case SND_SOC_DAIFMT_I2S:
278 static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
280 unsigned int fmt, unsigned int width)
282 const struct ak4613_formats *fmts;
284 fmts = (is_play) ? &iface->playback : &iface->capture;
286 if (fmts->fmt != fmt)
289 if (fmt == SND_SOC_DAIFMT_RIGHT_J) {
290 if (fmts->width != width)
293 if (fmts->width < width)
300 static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
301 struct snd_pcm_hw_params *params,
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);
306 const struct ak4613_interface *iface;
307 struct device *dev = codec->dev;
308 unsigned int width = params_width(params);
309 unsigned int fmt = priv->fmt;
311 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
315 rate = params_rate(params);
320 ctrl2 = DFS_NORMAL_SPEED;
324 ctrl2 = DFS_DOUBLE_SPEED;
328 ctrl2 = DFS_QUAD_SPEED;
337 * It doesn't support TDM at this point
343 mutex_lock(&priv->lock);
345 if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
348 for (i = ARRAY_SIZE(ak4613_iface); i >= 0; i--) {
349 if (!ak4613_dai_fmt_matching(ak4613_iface + i,
353 iface = ak4613_iface + i;
358 if ((priv->iface == NULL) ||
359 (priv->iface == iface)) {
364 mutex_unlock(&priv->lock);
369 fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);
371 snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
372 snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);
374 snd_soc_update_bits(codec, ICTRL, ICTRL_MASK, priv->ic);
375 snd_soc_update_bits(codec, OCTRL, OCTRL_MASK, priv->oc);
379 dev_warn(dev, "unsupported data width/format combination\n");
384 static int ak4613_set_bias_level(struct snd_soc_codec *codec,
385 enum snd_soc_bias_level level)
390 case SND_SOC_BIAS_ON:
393 case SND_SOC_BIAS_PREPARE:
394 mgmt1 |= PMADC | PMDAC;
396 case SND_SOC_BIAS_STANDBY:
399 case SND_SOC_BIAS_OFF:
404 snd_soc_write(codec, PW_MGMT1, mgmt1);
409 static const struct snd_soc_dai_ops ak4613_dai_ops = {
410 .shutdown = ak4613_dai_shutdown,
411 .set_fmt = ak4613_dai_set_fmt,
412 .hw_params = ak4613_dai_hw_params,
415 #define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\
416 SNDRV_PCM_RATE_44100 |\
417 SNDRV_PCM_RATE_48000 |\
418 SNDRV_PCM_RATE_64000 |\
419 SNDRV_PCM_RATE_88200 |\
420 SNDRV_PCM_RATE_96000 |\
421 SNDRV_PCM_RATE_176400 |\
422 SNDRV_PCM_RATE_192000)
423 #define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S16_LE |\
424 SNDRV_PCM_FMTBIT_S24_LE)
426 static struct snd_soc_dai_driver ak4613_dai = {
427 .name = "ak4613-hifi",
429 .stream_name = "Playback",
432 .rates = AK4613_PCM_RATE,
433 .formats = AK4613_PCM_FMTBIT,
436 .stream_name = "Capture",
439 .rates = AK4613_PCM_RATE,
440 .formats = AK4613_PCM_FMTBIT,
442 .ops = &ak4613_dai_ops,
443 .symmetric_rates = 1,
446 static int ak4613_suspend(struct snd_soc_codec *codec)
448 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
450 regcache_cache_only(regmap, true);
451 regcache_mark_dirty(regmap);
455 static int ak4613_resume(struct snd_soc_codec *codec)
457 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
459 regcache_cache_only(regmap, false);
460 return regcache_sync(regmap);
463 static struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
464 .suspend = ak4613_suspend,
465 .resume = ak4613_resume,
466 .set_bias_level = ak4613_set_bias_level,
467 .component_driver = {
468 .controls = ak4613_snd_controls,
469 .num_controls = ARRAY_SIZE(ak4613_snd_controls),
470 .dapm_widgets = ak4613_dapm_widgets,
471 .num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
472 .dapm_routes = ak4613_intercon,
473 .num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
477 static void ak4613_parse_of(struct ak4613_priv *priv,
480 struct device_node *np = dev->of_node;
485 for (i = 0; i < 2; i++) {
486 snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
487 if (!of_get_property(np, prop, NULL))
492 for (i = 0; i < 6; i++) {
493 snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
494 if (!of_get_property(np, prop, NULL))
499 static int ak4613_i2c_probe(struct i2c_client *i2c,
500 const struct i2c_device_id *id)
502 struct device *dev = &i2c->dev;
503 struct device_node *np = dev->of_node;
504 const struct regmap_config *regmap_cfg;
505 struct regmap *regmap;
506 struct ak4613_priv *priv;
510 const struct of_device_id *of_id;
512 of_id = of_match_device(ak4613_of_match, dev);
514 regmap_cfg = of_id->data;
516 regmap_cfg = (const struct regmap_config *)id->driver_data;
522 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
526 ak4613_parse_of(priv, dev);
531 mutex_init(&priv->lock);
533 i2c_set_clientdata(i2c, priv);
535 regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
537 return PTR_ERR(regmap);
539 return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
543 static int ak4613_i2c_remove(struct i2c_client *client)
545 snd_soc_unregister_codec(&client->dev);
549 static struct i2c_driver ak4613_i2c_driver = {
551 .name = "ak4613-codec",
552 .of_match_table = ak4613_of_match,
554 .probe = ak4613_i2c_probe,
555 .remove = ak4613_i2c_remove,
556 .id_table = ak4613_i2c_id,
559 module_i2c_driver(ak4613_i2c_driver);
561 MODULE_DESCRIPTION("Soc AK4613 driver");
562 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
563 MODULE_LICENSE("GPL v2");