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-rw-r--r--sound/soc/codecs/ak4642.c369
1 files changed, 216 insertions, 153 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 4be0570e3f1..3ba4c0f1141 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -18,20 +18,21 @@
* This is very simple driver.
* It can use headphone output / stereo input only
*
- * AK4642 is not tested.
+ * AK4642 is tested.
* AK4643 is tested.
+ * AK4648 is tested.
*/
#include <linux/delay.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
-#define AK4642_VERSION "0.0.1"
-
#define PW_MGMT1 0x00
#define PW_MGMT2 0x01
#define SG_SL1 0x02
@@ -70,8 +71,6 @@
#define HP_MS 0x23
#define SPK_MS 0x24
-#define AK4642_CACHEREGNUM 0x25
-
/* PW_MGMT1*/
#define PMVCM (1 << 6) /* VCOM Power Management */
#define PMMIN (1 << 5) /* MIN Input Power Management */
@@ -99,7 +98,7 @@
#define MGAIN0 (1 << 0) /* MIC amp gain*/
/* TIMER */
-#define ZTM(param) ((param & 0x3) << 4) /* ALC Zoro Crossing TimeOut */
+#define ZTM(param) ((param & 0x3) << 4) /* ALC Zero Crossing TimeOut */
#define WTM(param) (((param & 0x4) << 4) | ((param & 0x3) << 2))
/* ALC_CTL1 */
@@ -135,6 +134,15 @@
/* MD_CTL4 */
#define DACH (1 << 0)
+struct ak4642_drvdata {
+ const struct regmap_config *regmap_config;
+ int extended_frequencies;
+};
+
+struct ak4642_priv {
+ const struct ak4642_drvdata *drvdata;
+};
+
/*
* Playback Volume (table 39)
*
@@ -143,94 +151,89 @@
* min : 0xFE : -115.0 dB
* mute: 0xFF
*/
-static const DECLARE_TLV_DB_SCALE(out_tlv, -11500, 50, 1);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -11550, 50, 1);
static const struct snd_kcontrol_new ak4642_snd_controls[] = {
SOC_DOUBLE_R_TLV("Digital Playback Volume", L_DVC, R_DVC,
0, 0xFF, 1, out_tlv),
+ SOC_SINGLE("ALC Capture Switch", ALC_CTL1, 5, 1, 0),
+ SOC_SINGLE("ALC Capture ZC Switch", ALC_CTL1, 4, 1, 1),
};
+static const struct snd_kcontrol_new ak4642_headphone_control =
+ SOC_DAPM_SINGLE("Switch", PW_MGMT2, 6, 1, 0);
-/* codec private data */
-struct ak4642_priv {
- unsigned int sysclk;
- enum snd_soc_control_type control_type;
- void *control_data;
+static const struct snd_kcontrol_new ak4642_lout_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACL", SG_SL1, 4, 1, 0),
};
-/*
- * ak4642 register cache
- */
-static const u16 ak4642_reg[AK4642_CACHEREGNUM] = {
- 0x0000, 0x0000, 0x0001, 0x0000,
- 0x0002, 0x0000, 0x0000, 0x0000,
- 0x00e1, 0x00e1, 0x0018, 0x0000,
- 0x00e1, 0x0018, 0x0011, 0x0008,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000,
+static const struct snd_soc_dapm_widget ak4642_dapm_widgets[] = {
+
+ /* Outputs */
+ SND_SOC_DAPM_OUTPUT("HPOUTL"),
+ SND_SOC_DAPM_OUTPUT("HPOUTR"),
+ SND_SOC_DAPM_OUTPUT("LINEOUT"),
+
+ SND_SOC_DAPM_PGA("HPL Out", PW_MGMT2, 5, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("HPR Out", PW_MGMT2, 4, 0, NULL, 0),
+ SND_SOC_DAPM_SWITCH("Headphone Enable", SND_SOC_NOPM, 0, 0,
+ &ak4642_headphone_control),
+
+ SND_SOC_DAPM_PGA("DACH", MD_CTL4, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_MIXER("LINEOUT Mixer", PW_MGMT1, 3, 0,
+ &ak4642_lout_mixer_controls[0],
+ ARRAY_SIZE(ak4642_lout_mixer_controls)),
+
+ /* DAC */
+ SND_SOC_DAPM_DAC("DAC", "HiFi Playback", PW_MGMT1, 2, 0),
};
-/*
- * read ak4642 register cache
- */
-static inline unsigned int ak4642_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
- if (reg >= AK4642_CACHEREGNUM)
- return -1;
- return cache[reg];
-}
+static const struct snd_soc_dapm_route ak4642_intercon[] = {
-/*
- * write ak4642 register cache
- */
-static inline void ak4642_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
-{
- u16 *cache = codec->reg_cache;
- if (reg >= AK4642_CACHEREGNUM)
- return;
+ /* Outputs */
+ {"HPOUTL", NULL, "HPL Out"},
+ {"HPOUTR", NULL, "HPR Out"},
+ {"LINEOUT", NULL, "LINEOUT Mixer"},
- cache[reg] = value;
-}
+ {"HPL Out", NULL, "Headphone Enable"},
+ {"HPR Out", NULL, "Headphone Enable"},
-/*
- * write to the AK4642 register space
- */
-static int ak4642_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[2];
+ {"Headphone Enable", "Switch", "DACH"},
- /* data is
- * D15..D8 AK4642 register offset
- * D7...D0 register data
- */
- data[0] = reg & 0xff;
- data[1] = value & 0xff;
-
- if (codec->hw_write(codec->control_data, data, 2) == 2) {
- ak4642_write_reg_cache(codec, reg, value);
- return 0;
- } else
- return -EIO;
-}
+ {"DACH", NULL, "DAC"},
-static int ak4642_sync(struct snd_soc_codec *codec)
-{
- u16 *cache = codec->reg_cache;
- int i, r = 0;
+ {"LINEOUT Mixer", "DACL", "DAC"},
+};
- for (i = 0; i < AK4642_CACHEREGNUM; i++)
- r |= ak4642_write(codec, i, cache[i]);
+/*
+ * ak4642 register cache
+ */
+static const struct reg_default ak4642_reg[] = {
+ { 0, 0x00 }, { 1, 0x00 }, { 2, 0x01 }, { 3, 0x00 },
+ { 4, 0x02 }, { 5, 0x00 }, { 6, 0x00 }, { 7, 0x00 },
+ { 8, 0xe1 }, { 9, 0xe1 }, { 10, 0x18 }, { 11, 0x00 },
+ { 12, 0xe1 }, { 13, 0x18 }, { 14, 0x11 }, { 15, 0x08 },
+ { 16, 0x00 }, { 17, 0x00 }, { 18, 0x00 }, { 19, 0x00 },
+ { 20, 0x00 }, { 21, 0x00 }, { 22, 0x00 }, { 23, 0x00 },
+ { 24, 0x00 }, { 25, 0x00 }, { 26, 0x00 }, { 27, 0x00 },
+ { 28, 0x00 }, { 29, 0x00 }, { 30, 0x00 }, { 31, 0x00 },
+ { 32, 0x00 }, { 33, 0x00 }, { 34, 0x00 }, { 35, 0x00 },
+ { 36, 0x00 },
+};
- return r;
+static const struct reg_default ak4648_reg[] = {
+ { 0, 0x00 }, { 1, 0x00 }, { 2, 0x01 }, { 3, 0x00 },
+ { 4, 0x02 }, { 5, 0x00 }, { 6, 0x00 }, { 7, 0x00 },
+ { 8, 0xe1 }, { 9, 0xe1 }, { 10, 0x18 }, { 11, 0x00 },
+ { 12, 0xe1 }, { 13, 0x18 }, { 14, 0x11 }, { 15, 0xb8 },
+ { 16, 0x00 }, { 17, 0x00 }, { 18, 0x00 }, { 19, 0x00 },
+ { 20, 0x00 }, { 21, 0x00 }, { 22, 0x00 }, { 23, 0x00 },
+ { 24, 0x00 }, { 25, 0x00 }, { 26, 0x00 }, { 27, 0x00 },
+ { 28, 0x00 }, { 29, 0x00 }, { 30, 0x00 }, { 31, 0x00 },
+ { 32, 0x00 }, { 33, 0x00 }, { 34, 0x00 }, { 35, 0x00 },
+ { 36, 0x00 }, { 37, 0x88 }, { 38, 0x88 }, { 39, 0x08 },
};
static int ak4642_dai_startup(struct snd_pcm_substream *substream,
@@ -250,14 +253,8 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
* This operation came from example code of
* "ASAHI KASEI AK4642" (japanese) manual p97.
*/
- snd_soc_update_bits(codec, MD_CTL4, DACH, DACH);
- snd_soc_update_bits(codec, MD_CTL3, BST1, BST1);
- ak4642_write(codec, L_IVC, 0x91); /* volume */
- ak4642_write(codec, R_IVC, 0x91); /* volume */
- snd_soc_update_bits(codec, PW_MGMT1, PMVCM | PMMIN | PMDAC,
- PMVCM | PMMIN | PMDAC);
- snd_soc_update_bits(codec, PW_MGMT2, PMHP_MASK, PMHP);
- snd_soc_update_bits(codec, PW_MGMT2, HPMTN, HPMTN);
+ snd_soc_write(codec, L_IVC, 0x91); /* volume */
+ snd_soc_write(codec, R_IVC, 0x91); /* volume */
} else {
/*
* start stereo input
@@ -272,11 +269,10 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
* This operation came from example code of
* "ASAHI KASEI AK4642" (japanese) manual p94.
*/
- ak4642_write(codec, SG_SL1, PMMP | MGAIN0);
- ak4642_write(codec, TIMER, ZTM(0x3) | WTM(0x3));
- ak4642_write(codec, ALC_CTL1, ALC | LMTH0);
- snd_soc_update_bits(codec, PW_MGMT1, PMVCM | PMADL,
- PMVCM | PMADL);
+ snd_soc_update_bits(codec, SG_SL1, PMMP | MGAIN0, PMMP | MGAIN0);
+ snd_soc_write(codec, TIMER, ZTM(0x3) | WTM(0x3));
+ snd_soc_write(codec, ALC_CTL1, ALC | LMTH0);
+ snd_soc_update_bits(codec, PW_MGMT1, PMADL, PMADL);
snd_soc_update_bits(codec, PW_MGMT3, PMADR, PMADR);
}
@@ -290,12 +286,6 @@ static void ak4642_dai_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_codec *codec = dai->codec;
if (is_play) {
- /* stop headphone output */
- snd_soc_update_bits(codec, PW_MGMT2, HPMTN, 0);
- snd_soc_update_bits(codec, PW_MGMT2, PMHP_MASK, 0);
- snd_soc_update_bits(codec, PW_MGMT1, PMMIN | PMDAC, 0);
- snd_soc_update_bits(codec, MD_CTL3, BST1, 0);
- snd_soc_update_bits(codec, MD_CTL4, DACH, 0);
} else {
/* stop stereo input */
snd_soc_update_bits(codec, PW_MGMT1, PMADL, 0);
@@ -308,7 +298,9 @@ static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
+ struct ak4642_priv *priv = snd_soc_codec_get_drvdata(codec);
u8 pll;
+ int extended_freq = 0;
switch (freq) {
case 11289600:
@@ -329,9 +321,25 @@ static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai,
case 27000000:
pll = PLL3 | PLL2 | PLL0;
break;
+ case 19200000:
+ pll = PLL3;
+ extended_freq = 1;
+ break;
+ case 13000000:
+ pll = PLL3 | PLL2 | PLL1;
+ extended_freq = 1;
+ break;
+ case 26000000:
+ pll = PLL3 | PLL2 | PLL1 | PLL0;
+ extended_freq = 1;
+ break;
default:
return -EINVAL;
}
+
+ if (extended_freq && !priv->drvdata->extended_frequencies)
+ return -EINVAL;
+
snd_soc_update_bits(codec, MD_CTL1, PLL_MASK, pll);
return 0;
@@ -357,7 +365,7 @@ static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
default:
return -EINVAL;
}
- snd_soc_update_bits(codec, PW_MGMT2, MS, data);
+ snd_soc_update_bits(codec, PW_MGMT2, MS | MCKO | PMPLL, data);
snd_soc_update_bits(codec, MD_CTL1, BCKO_MASK, bcko);
/* format type */
@@ -374,7 +382,6 @@ static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
*/
default:
return -EINVAL;
- break;
}
snd_soc_update_bits(codec, MD_CTL1, DIF_MASK, data);
@@ -427,14 +434,29 @@ static int ak4642_dai_hw_params(struct snd_pcm_substream *substream,
break;
default:
return -EINVAL;
- break;
}
snd_soc_update_bits(codec, MD_CTL2, FS_MASK, rate);
return 0;
}
-static struct snd_soc_dai_ops ak4642_dai_ops = {
+static int ak4642_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ switch (level) {
+ case SND_SOC_BIAS_OFF:
+ snd_soc_write(codec, PW_MGMT1, 0x00);
+ break;
+ default:
+ snd_soc_update_bits(codec, PW_MGMT1, PMVCM, PMVCM);
+ break;
+ }
+ codec->dapm.bias_level = level;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops ak4642_dai_ops = {
.startup = ak4642_dai_startup,
.shutdown = ak4642_dai_shutdown,
.set_sysclk = ak4642_dai_set_sysclk,
@@ -462,68 +484,127 @@ static struct snd_soc_dai_driver ak4642_dai = {
static int ak4642_resume(struct snd_soc_codec *codec)
{
- ak4642_sync(codec);
+ struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
+
+ regcache_mark_dirty(regmap);
+ regcache_sync(regmap);
return 0;
}
static int ak4642_probe(struct snd_soc_codec *codec)
{
- struct ak4642_priv *ak4642 = snd_soc_codec_get_drvdata(codec);
-
- dev_info(codec->dev, "AK4642 Audio Codec %s", AK4642_VERSION);
+ ak4642_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- codec->hw_write = (hw_write_t)i2c_master_send;
- codec->control_data = ak4642->control_data;
-
- snd_soc_add_controls(codec, ak4642_snd_controls,
- ARRAY_SIZE(ak4642_snd_controls));
+ return 0;
+}
+static int ak4642_remove(struct snd_soc_codec *codec)
+{
+ ak4642_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_ak4642 = {
.probe = ak4642_probe,
+ .remove = ak4642_remove,
.resume = ak4642_resume,
- .read = ak4642_read_reg_cache,
- .write = ak4642_write,
- .reg_cache_size = ARRAY_SIZE(ak4642_reg),
- .reg_word_size = sizeof(u8),
- .reg_cache_default = ak4642_reg,
+ .set_bias_level = ak4642_set_bias_level,
+ .controls = ak4642_snd_controls,
+ .num_controls = ARRAY_SIZE(ak4642_snd_controls),
+ .dapm_widgets = ak4642_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(ak4642_dapm_widgets),
+ .dapm_routes = ak4642_intercon,
+ .num_dapm_routes = ARRAY_SIZE(ak4642_intercon),
+};
+
+static const struct regmap_config ak4642_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = ARRAY_SIZE(ak4642_reg) + 1,
+ .reg_defaults = ak4642_reg,
+ .num_reg_defaults = ARRAY_SIZE(ak4642_reg),
};
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int ak4642_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static const struct regmap_config ak4648_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = ARRAY_SIZE(ak4648_reg) + 1,
+ .reg_defaults = ak4648_reg,
+ .num_reg_defaults = ARRAY_SIZE(ak4648_reg),
+};
+
+static const struct ak4642_drvdata ak4642_drvdata = {
+ .regmap_config = &ak4642_regmap,
+};
+
+static const struct ak4642_drvdata ak4643_drvdata = {
+ .regmap_config = &ak4642_regmap,
+};
+
+static const struct ak4642_drvdata ak4648_drvdata = {
+ .regmap_config = &ak4648_regmap,
+ .extended_frequencies = 1,
+};
+
+static struct of_device_id ak4642_of_match[];
+static int ak4642_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
- struct ak4642_priv *ak4642;
- int ret;
+ struct device_node *np = i2c->dev.of_node;
+ const struct ak4642_drvdata *drvdata = NULL;
+ struct regmap *regmap;
+ struct ak4642_priv *priv;
- ak4642 = kzalloc(sizeof(struct ak4642_priv), GFP_KERNEL);
- if (!ak4642)
+ if (np) {
+ const struct of_device_id *of_id;
+
+ of_id = of_match_device(ak4642_of_match, &i2c->dev);
+ if (of_id)
+ drvdata = of_id->data;
+ } else {
+ drvdata = (const struct ak4642_drvdata *)id->driver_data;
+ }
+
+ if (!drvdata) {
+ dev_err(&i2c->dev, "Unknown device type\n");
+ return -EINVAL;
+ }
+
+ priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
return -ENOMEM;
- i2c_set_clientdata(i2c, ak4642);
- ak4642->control_data = i2c;
- ak4642->control_type = SND_SOC_I2C;
+ priv->drvdata = drvdata;
+
+ i2c_set_clientdata(i2c, priv);
- ret = snd_soc_register_codec(&i2c->dev,
- &soc_codec_dev_ak4642, &ak4642_dai, 1);
- if (ret < 0)
- kfree(ak4642);
- return ret;
+ regmap = devm_regmap_init_i2c(i2c, drvdata->regmap_config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_ak4642, &ak4642_dai, 1);
}
-static __devexit int ak4642_i2c_remove(struct i2c_client *client)
+static int ak4642_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
- kfree(i2c_get_clientdata(client));
return 0;
}
+static struct of_device_id ak4642_of_match[] = {
+ { .compatible = "asahi-kasei,ak4642", .data = &ak4642_drvdata},
+ { .compatible = "asahi-kasei,ak4643", .data = &ak4643_drvdata},
+ { .compatible = "asahi-kasei,ak4648", .data = &ak4648_drvdata},
+ {},
+};
+MODULE_DEVICE_TABLE(of, ak4642_of_match);
+
static const struct i2c_device_id ak4642_i2c_id[] = {
- { "ak4642", 0 },
- { "ak4643", 0 },
+ { "ak4642", (kernel_ulong_t)&ak4642_drvdata },
+ { "ak4643", (kernel_ulong_t)&ak4643_drvdata },
+ { "ak4648", (kernel_ulong_t)&ak4648_drvdata },
{ }
};
MODULE_DEVICE_TABLE(i2c, ak4642_i2c_id);
@@ -532,32 +613,14 @@ static struct i2c_driver ak4642_i2c_driver = {
.driver = {
.name = "ak4642-codec",
.owner = THIS_MODULE,
+ .of_match_table = ak4642_of_match,
},
.probe = ak4642_i2c_probe,
- .remove = __devexit_p(ak4642_i2c_remove),
+ .remove = ak4642_i2c_remove,
.id_table = ak4642_i2c_id,
};
-#endif
-
-static int __init ak4642_modinit(void)
-{
- int ret = 0;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- ret = i2c_add_driver(&ak4642_i2c_driver);
-#endif
- return ret;
-}
-module_init(ak4642_modinit);
-
-static void __exit ak4642_exit(void)
-{
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- i2c_del_driver(&ak4642_i2c_driver);
-#endif
-
-}
-module_exit(ak4642_exit);
+module_i2c_driver(ak4642_i2c_driver);
MODULE_DESCRIPTION("Soc AK4642 driver");
MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 03:58:29 +0000