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Diffstat (limited to 'sound/soc/codecs/wm8974.c')
-rw-r--r--sound/soc/codecs/wm8974.c287
1 files changed, 79 insertions, 208 deletions
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
index 8812751da8c..0627c56fa44 100644
--- a/sound/soc/codecs/wm8974.c
+++ b/sound/soc/codecs/wm8974.c
@@ -3,7 +3,7 @@
*
* Copyright 2006-2009 Wolfson Microelectronics PLC.
*
- * Author: Liam Girdwood <linux@wolfsonmicro.com>
+ * Author: Liam Girdwood <Liam.Girdwood@wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -17,45 +17,38 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "wm8974.h"
-static const u16 wm8974_reg[WM8974_CACHEREGNUM] = {
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0050, 0x0000, 0x0140, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x00ff,
- 0x0000, 0x0000, 0x0100, 0x00ff,
- 0x0000, 0x0000, 0x012c, 0x002c,
- 0x002c, 0x002c, 0x002c, 0x0000,
- 0x0032, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0038, 0x000b, 0x0032, 0x0000,
- 0x0008, 0x000c, 0x0093, 0x00e9,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0003, 0x0010, 0x0000, 0x0000,
- 0x0000, 0x0002, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0039, 0x0000,
- 0x0000,
+static const struct reg_default wm8974_reg_defaults[] = {
+ { 0, 0x0000 }, { 1, 0x0000 }, { 2, 0x0000 }, { 3, 0x0000 },
+ { 4, 0x0050 }, { 5, 0x0000 }, { 6, 0x0140 }, { 7, 0x0000 },
+ { 8, 0x0000 }, { 9, 0x0000 }, { 10, 0x0000 }, { 11, 0x00ff },
+ { 12, 0x0000 }, { 13, 0x0000 }, { 14, 0x0100 }, { 15, 0x00ff },
+ { 16, 0x0000 }, { 17, 0x0000 }, { 18, 0x012c }, { 19, 0x002c },
+ { 20, 0x002c }, { 21, 0x002c }, { 22, 0x002c }, { 23, 0x0000 },
+ { 24, 0x0032 }, { 25, 0x0000 }, { 26, 0x0000 }, { 27, 0x0000 },
+ { 28, 0x0000 }, { 29, 0x0000 }, { 30, 0x0000 }, { 31, 0x0000 },
+ { 32, 0x0038 }, { 33, 0x000b }, { 34, 0x0032 }, { 35, 0x0000 },
+ { 36, 0x0008 }, { 37, 0x000c }, { 38, 0x0093 }, { 39, 0x00e9 },
+ { 40, 0x0000 }, { 41, 0x0000 }, { 42, 0x0000 }, { 43, 0x0000 },
+ { 44, 0x0003 }, { 45, 0x0010 }, { 46, 0x0000 }, { 47, 0x0000 },
+ { 48, 0x0000 }, { 49, 0x0002 }, { 50, 0x0000 }, { 51, 0x0000 },
+ { 52, 0x0000 }, { 53, 0x0000 }, { 54, 0x0039 }, { 55, 0x0000 },
+ { 56, 0x0000 },
};
#define WM8974_POWER1_BIASEN 0x08
#define WM8974_POWER1_BUFIOEN 0x04
-struct wm8974_priv {
- struct snd_soc_codec codec;
- u16 reg_cache[WM8974_CACHEREGNUM];
-};
-
-static struct snd_soc_codec *wm8974_codec;
-
#define wm8974_reset(c) snd_soc_write(c, WM8974_RESET, 0)
static const char *wm8974_companding[] = {"Off", "NC", "u-law", "A-law" };
@@ -91,8 +84,8 @@ static const struct soc_enum wm8974_enum[] = {
static const char *wm8974_auxmode_text[] = { "Buffer", "Mixer" };
-static const struct soc_enum wm8974_auxmode =
- SOC_ENUM_SINGLE(WM8974_INPUT, 3, 2, wm8974_auxmode_text);
+static SOC_ENUM_SINGLE_DECL(wm8974_auxmode,
+ WM8974_INPUT, 3, wm8974_auxmode_text);
static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
@@ -121,19 +114,19 @@ SOC_ENUM("Equaliser Function", wm8974_enum[3]),
SOC_ENUM("EQ1 Cut Off", wm8974_enum[4]),
SOC_SINGLE_TLV("EQ1 Volume", WM8974_EQ1, 0, 24, 1, eq_tlv),
-SOC_ENUM("Equaliser EQ2 Bandwith", wm8974_enum[5]),
+SOC_ENUM("Equaliser EQ2 Bandwidth", wm8974_enum[5]),
SOC_ENUM("EQ2 Cut Off", wm8974_enum[6]),
SOC_SINGLE_TLV("EQ2 Volume", WM8974_EQ2, 0, 24, 1, eq_tlv),
-SOC_ENUM("Equaliser EQ3 Bandwith", wm8974_enum[7]),
+SOC_ENUM("Equaliser EQ3 Bandwidth", wm8974_enum[7]),
SOC_ENUM("EQ3 Cut Off", wm8974_enum[8]),
SOC_SINGLE_TLV("EQ3 Volume", WM8974_EQ3, 0, 24, 1, eq_tlv),
-SOC_ENUM("Equaliser EQ4 Bandwith", wm8974_enum[9]),
+SOC_ENUM("Equaliser EQ4 Bandwidth", wm8974_enum[9]),
SOC_ENUM("EQ4 Cut Off", wm8974_enum[10]),
SOC_SINGLE_TLV("EQ4 Volume", WM8974_EQ4, 0, 24, 1, eq_tlv),
-SOC_ENUM("Equaliser EQ5 Bandwith", wm8974_enum[11]),
+SOC_ENUM("Equaliser EQ5 Bandwidth", wm8974_enum[11]),
SOC_ENUM("EQ5 Cut Off", wm8974_enum[12]),
SOC_SINGLE_TLV("EQ5 Volume", WM8974_EQ5, 0, 24, 1, eq_tlv),
@@ -170,13 +163,17 @@ SOC_ENUM("Aux Mode", wm8974_auxmode),
SOC_SINGLE("Capture Boost(+20dB)", WM8974_ADCBOOST, 8, 1, 0),
SOC_SINGLE("Mono Playback Switch", WM8974_MONOMIX, 6, 1, 1),
+
+/* DAC / ADC oversampling */
+SOC_SINGLE("DAC 128x Oversampling Switch", WM8974_DAC, 8, 1, 0),
+SOC_SINGLE("ADC 128x Oversampling Switch", WM8974_ADC, 8, 1, 0),
};
/* Speaker Output Mixer */
static const struct snd_kcontrol_new wm8974_speaker_mixer_controls[] = {
SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_SPKMIX, 1, 1, 0),
SOC_DAPM_SINGLE("Aux Playback Switch", WM8974_SPKMIX, 5, 1, 0),
-SOC_DAPM_SINGLE("PCM Playback Switch", WM8974_SPKMIX, 0, 1, 1),
+SOC_DAPM_SINGLE("PCM Playback Switch", WM8974_SPKMIX, 0, 1, 0),
};
/* Mono Output Mixer */
@@ -225,7 +222,7 @@ SND_SOC_DAPM_MIXER("Input PGA", WM8974_POWER2, 2, 0, wm8974_inpga,
SND_SOC_DAPM_MIXER("Boost Mixer", WM8974_POWER2, 4, 0,
wm8974_boost_mixer, ARRAY_SIZE(wm8974_boost_mixer)),
-SND_SOC_DAPM_MICBIAS("Mic Bias", WM8974_POWER1, 4, 0),
+SND_SOC_DAPM_SUPPLY("Mic Bias", WM8974_POWER1, 4, 0, NULL, 0),
SND_SOC_DAPM_INPUT("MICN"),
SND_SOC_DAPM_INPUT("MICP"),
@@ -235,7 +232,7 @@ SND_SOC_DAPM_OUTPUT("SPKOUTP"),
SND_SOC_DAPM_OUTPUT("SPKOUTN"),
};
-static const struct snd_soc_dapm_route audio_map[] = {
+static const struct snd_soc_dapm_route wm8974_dapm_routes[] = {
/* Mono output mixer */
{"Mono Mixer", "PCM Playback Switch", "DAC"},
{"Mono Mixer", "Aux Playback Switch", "Aux Input"},
@@ -269,16 +266,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
{"Aux Input", NULL, "AUX"},
};
-static int wm8974_add_widgets(struct snd_soc_codec *codec)
-{
- snd_soc_dapm_new_controls(codec, wm8974_dapm_widgets,
- ARRAY_SIZE(wm8974_dapm_widgets));
-
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
-
- return 0;
-}
-
struct pll_ {
unsigned int pre_div:1;
unsigned int n:4;
@@ -381,14 +368,6 @@ static int wm8974_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
reg = snd_soc_read(codec, WM8974_CLOCK) & 0x11f;
snd_soc_write(codec, WM8974_CLOCK, reg | div);
break;
- case WM8974_ADCCLK:
- reg = snd_soc_read(codec, WM8974_ADC) & 0x1f7;
- snd_soc_write(codec, WM8974_ADC, reg | div);
- break;
- case WM8974_DACCLK:
- reg = snd_soc_read(codec, WM8974_DAC) & 0x1f7;
- snd_soc_write(codec, WM8974_DAC, reg | div);
- break;
case WM8974_BCLKDIV:
reg = snd_soc_read(codec, WM8974_CLOCK) & 0x1e3;
snd_soc_write(codec, WM8974_CLOCK, reg | div);
@@ -535,7 +514,9 @@ static int wm8974_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
power1 |= WM8974_POWER1_BIASEN | WM8974_POWER1_BUFIOEN;
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ regcache_sync(dev_get_regmap(codec->dev, NULL));
+
/* Initial cap charge at VMID 5k */
snd_soc_write(codec, WM8974_POWER1, power1 | 0x3);
mdelay(100);
@@ -552,7 +533,7 @@ static int wm8974_set_bias_level(struct snd_soc_codec *codec,
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
@@ -561,7 +542,7 @@ static int wm8974_set_bias_level(struct snd_soc_codec *codec,
#define WM8974_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
-static struct snd_soc_dai_ops wm8974_ops = {
+static const struct snd_soc_dai_ops wm8974_ops = {
.hw_params = wm8974_pcm_hw_params,
.digital_mute = wm8974_mute,
.set_fmt = wm8974_set_dai_fmt,
@@ -569,8 +550,8 @@ static struct snd_soc_dai_ops wm8974_ops = {
.set_pll = wm8974_set_dai_pll,
};
-struct snd_soc_dai wm8974_dai = {
- .name = "WM8974 HiFi",
+static struct snd_soc_dai_driver wm8974_dai = {
+ .name = "wm8974-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
@@ -586,185 +567,85 @@ struct snd_soc_dai wm8974_dai = {
.ops = &wm8974_ops,
.symmetric_rates = 1,
};
-EXPORT_SYMBOL_GPL(wm8974_dai);
-static int wm8974_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8974_suspend(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static int wm8974_resume(struct platform_device *pdev)
+static int wm8974_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
- int i;
- u8 data[2];
- u16 *cache = codec->reg_cache;
-
- /* Sync reg_cache with the hardware */
- for (i = 0; i < ARRAY_SIZE(wm8974_reg); i++) {
- data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
- data[1] = cache[i] & 0x00ff;
- codec->hw_write(codec->control_data, data, 2);
- }
wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8974_set_bias_level(codec, codec->suspend_bias_level);
return 0;
}
-static int wm8974_probe(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
- int ret = 0;
+static const struct regmap_config wm8974_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
- if (wm8974_codec == NULL) {
- dev_err(&pdev->dev, "Codec device not registered\n");
- return -ENODEV;
- }
+ .max_register = WM8974_MONOMIX,
+ .reg_defaults = wm8974_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8974_reg_defaults),
+};
- socdev->card->codec = wm8974_codec;
- codec = wm8974_codec;
+static int wm8974_probe(struct snd_soc_codec *codec)
+{
+ int ret = 0;
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ ret = wm8974_reset(codec);
if (ret < 0) {
- dev_err(codec->dev, "failed to create pcms: %d\n", ret);
- goto pcm_err;
+ dev_err(codec->dev, "Failed to issue reset\n");
+ return ret;
}
- snd_soc_add_controls(codec, wm8974_snd_controls,
- ARRAY_SIZE(wm8974_snd_controls));
- wm8974_add_widgets(codec);
-
- return ret;
+ wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-pcm_err:
return ret;
}
/* power down chip */
-static int wm8974_remove(struct platform_device *pdev)
+static int wm8974_remove(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
+ wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_wm8974 = {
+static struct snd_soc_codec_driver soc_codec_dev_wm8974 = {
.probe = wm8974_probe,
.remove = wm8974_remove,
.suspend = wm8974_suspend,
.resume = wm8974_resume,
+ .set_bias_level = wm8974_set_bias_level,
+
+ .controls = wm8974_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8974_snd_controls),
+ .dapm_widgets = wm8974_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8974_dapm_widgets),
+ .dapm_routes = wm8974_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8974_dapm_routes),
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8974);
-static __devinit int wm8974_register(struct wm8974_priv *wm8974)
+static int wm8974_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
+ struct regmap *regmap;
int ret;
- struct snd_soc_codec *codec = &wm8974->codec;
-
- if (wm8974_codec) {
- dev_err(codec->dev, "Another WM8974 is registered\n");
- return -EINVAL;
- }
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->private_data = wm8974;
- codec->name = "WM8974";
- codec->owner = THIS_MODULE;
- codec->bias_level = SND_SOC_BIAS_OFF;
- codec->set_bias_level = wm8974_set_bias_level;
- codec->dai = &wm8974_dai;
- codec->num_dai = 1;
- codec->reg_cache_size = WM8974_CACHEREGNUM;
- codec->reg_cache = &wm8974->reg_cache;
-
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_I2C);
- if (ret < 0) {
- dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
- goto err;
- }
-
- memcpy(codec->reg_cache, wm8974_reg, sizeof(wm8974_reg));
-
- ret = wm8974_reset(codec);
- if (ret < 0) {
- dev_err(codec->dev, "Failed to issue reset\n");
- goto err;
- }
-
- wm8974_dai.dev = codec->dev;
-
- wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
- wm8974_codec = codec;
-
- ret = snd_soc_register_codec(codec);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to register codec: %d\n", ret);
- goto err;
- }
-
- ret = snd_soc_register_dai(&wm8974_dai);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
- goto err_codec;
- }
+ regmap = devm_regmap_init_i2c(i2c, &wm8974_regmap);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
- return 0;
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8974, &wm8974_dai, 1);
-err_codec:
- snd_soc_unregister_codec(codec);
-err:
- kfree(wm8974);
return ret;
}
-static __devexit void wm8974_unregister(struct wm8974_priv *wm8974)
-{
- wm8974_set_bias_level(&wm8974->codec, SND_SOC_BIAS_OFF);
- snd_soc_unregister_dai(&wm8974_dai);
- snd_soc_unregister_codec(&wm8974->codec);
- kfree(wm8974);
- wm8974_codec = NULL;
-}
-
-static __devinit int wm8974_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8974_i2c_remove(struct i2c_client *client)
{
- struct wm8974_priv *wm8974;
- struct snd_soc_codec *codec;
-
- wm8974 = kzalloc(sizeof(struct wm8974_priv), GFP_KERNEL);
- if (wm8974 == NULL)
- return -ENOMEM;
-
- codec = &wm8974->codec;
- codec->hw_write = (hw_write_t)i2c_master_send;
-
- i2c_set_clientdata(i2c, wm8974);
- codec->control_data = i2c;
-
- codec->dev = &i2c->dev;
+ snd_soc_unregister_codec(&client->dev);
- return wm8974_register(wm8974);
-}
-
-static __devexit int wm8974_i2c_remove(struct i2c_client *client)
-{
- struct wm8974_priv *wm8974 = i2c_get_clientdata(client);
- wm8974_unregister(wm8974);
return 0;
}
@@ -776,25 +657,15 @@ MODULE_DEVICE_TABLE(i2c, wm8974_i2c_id);
static struct i2c_driver wm8974_i2c_driver = {
.driver = {
- .name = "WM8974",
+ .name = "wm8974",
.owner = THIS_MODULE,
},
.probe = wm8974_i2c_probe,
- .remove = __devexit_p(wm8974_i2c_remove),
+ .remove = wm8974_i2c_remove,
.id_table = wm8974_i2c_id,
};
-static int __init wm8974_modinit(void)
-{
- return i2c_add_driver(&wm8974_i2c_driver);
-}
-module_init(wm8974_modinit);
-
-static void __exit wm8974_exit(void)
-{
- i2c_del_driver(&wm8974_i2c_driver);
-}
-module_exit(wm8974_exit);
+module_i2c_driver(wm8974_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8974 driver");
MODULE_AUTHOR("Liam Girdwood");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-12 10:32:32 +0000