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Diffstat (limited to 'sound/soc/codecs/ak4642.c')
-rw-r--r--sound/soc/codecs/ak4642.c704
1 files changed, 419 insertions, 285 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 3ef16bbc8c8..3ba4c0f1141 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -18,27 +18,20 @@
* 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/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
#include <linux/delay.h>
-#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
-
-#include "ak4642.h"
-
-#define AK4642_VERSION "0.0.1"
+#include <sound/tlv.h>
#define PW_MGMT1 0x00
#define PW_MGMT2 0x01
@@ -78,90 +71,169 @@
#define HP_MS 0x23
#define SPK_MS 0x24
-#define AK4642_CACHEREGNUM 0x25
-
-struct snd_soc_codec_device soc_codec_dev_ak4642;
+/* PW_MGMT1*/
+#define PMVCM (1 << 6) /* VCOM Power Management */
+#define PMMIN (1 << 5) /* MIN Input Power Management */
+#define PMDAC (1 << 2) /* DAC Power Management */
+#define PMADL (1 << 0) /* MIC Amp Lch and ADC Lch Power Management */
+
+/* PW_MGMT2 */
+#define HPMTN (1 << 6)
+#define PMHPL (1 << 5)
+#define PMHPR (1 << 4)
+#define MS (1 << 3) /* master/slave select */
+#define MCKO (1 << 1)
+#define PMPLL (1 << 0)
+
+#define PMHP_MASK (PMHPL | PMHPR)
+#define PMHP PMHP_MASK
+
+/* PW_MGMT3 */
+#define PMADR (1 << 0) /* MIC L / ADC R Power Management */
+
+/* SG_SL1 */
+#define MINS (1 << 6) /* Switch from MIN to Speaker */
+#define DACL (1 << 4) /* Switch from DAC to Stereo or Receiver */
+#define PMMP (1 << 2) /* MPWR pin Power Management */
+#define MGAIN0 (1 << 0) /* MIC amp gain*/
+
+/* TIMER */
+#define ZTM(param) ((param & 0x3) << 4) /* ALC Zero Crossing TimeOut */
+#define WTM(param) (((param & 0x4) << 4) | ((param & 0x3) << 2))
+
+/* ALC_CTL1 */
+#define ALC (1 << 5) /* ALC Enable */
+#define LMTH0 (1 << 0) /* ALC Limiter / Recovery Level */
+
+/* MD_CTL1 */
+#define PLL3 (1 << 7)
+#define PLL2 (1 << 6)
+#define PLL1 (1 << 5)
+#define PLL0 (1 << 4)
+#define PLL_MASK (PLL3 | PLL2 | PLL1 | PLL0)
+
+#define BCKO_MASK (1 << 3)
+#define BCKO_64 BCKO_MASK
+
+#define DIF_MASK (3 << 0)
+#define DSP (0 << 0)
+#define RIGHT_J (1 << 0)
+#define LEFT_J (2 << 0)
+#define I2S (3 << 0)
+
+/* MD_CTL2 */
+#define FS0 (1 << 0)
+#define FS1 (1 << 1)
+#define FS2 (1 << 2)
+#define FS3 (1 << 5)
+#define FS_MASK (FS0 | FS1 | FS2 | FS3)
+
+/* MD_CTL3 */
+#define BST1 (1 << 3)
+
+/* MD_CTL4 */
+#define DACH (1 << 0)
+
+struct ak4642_drvdata {
+ const struct regmap_config *regmap_config;
+ int extended_frequencies;
+};
-/* codec private data */
struct ak4642_priv {
- struct snd_soc_codec codec;
- unsigned int sysclk;
+ const struct ak4642_drvdata *drvdata;
};
-static struct snd_soc_codec *ak4642_codec;
-
/*
- * ak4642 register cache
+ * Playback Volume (table 39)
+ *
+ * max : 0x00 : +12.0 dB
+ * ( 0.5 dB step )
+ * min : 0xFE : -115.0 dB
+ * mute: 0xFF
*/
-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 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),
};
-/*
- * 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_kcontrol_new ak4642_headphone_control =
+ SOC_DAPM_SINGLE("Switch", PW_MGMT2, 6, 1, 0);
-/*
- * 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;
+static const struct snd_kcontrol_new ak4642_lout_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACL", SG_SL1, 4, 1, 0),
+};
- cache[reg] = value;
-}
+static const struct snd_soc_dapm_widget ak4642_dapm_widgets[] = {
-/*
- * write to the AK4642 register space
- */
-static int ak4642_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[2];
+ /* Outputs */
+ SND_SOC_DAPM_OUTPUT("HPOUTL"),
+ SND_SOC_DAPM_OUTPUT("HPOUTR"),
+ SND_SOC_DAPM_OUTPUT("LINEOUT"),
- /* 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;
-}
+ 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),
-static int ak4642_sync(struct snd_soc_codec *codec)
-{
- u16 *cache = codec->reg_cache;
- int i, r = 0;
+ 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),
+};
+
+static const struct snd_soc_dapm_route ak4642_intercon[] = {
+
+ /* Outputs */
+ {"HPOUTL", NULL, "HPL Out"},
+ {"HPOUTR", NULL, "HPR Out"},
+ {"LINEOUT", NULL, "LINEOUT Mixer"},
+
+ {"HPL Out", NULL, "Headphone Enable"},
+ {"HPR Out", NULL, "Headphone Enable"},
+
+ {"Headphone Enable", "Switch", "DACH"},
- for (i = 0; i < AK4642_CACHEREGNUM; i++)
- r |= ak4642_write(codec, i, cache[i]);
+ {"DACH", NULL, "DAC"},
- return r;
+ {"LINEOUT Mixer", "DACL", "DAC"},
+};
+
+/*
+ * 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 },
+};
+
+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,
@@ -176,33 +248,19 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
*
* PLL, Master Mode
* Audio I/F Format :MSB justified (ADC & DAC)
- * Sampling Frequency: 44.1kHz
- * Digital Volume: −8dB
* Bass Boost Level : Middle
*
* This operation came from example code of
* "ASAHI KASEI AK4642" (japanese) manual p97.
- *
- * Example code use 0x39, 0x79 value for 0x01 address,
- * But we need MCKO (0x02) bit now
*/
- ak4642_write(codec, 0x05, 0x27);
- ak4642_write(codec, 0x0f, 0x09);
- ak4642_write(codec, 0x0e, 0x19);
- ak4642_write(codec, 0x09, 0x91);
- ak4642_write(codec, 0x0c, 0x91);
- ak4642_write(codec, 0x0a, 0x28);
- ak4642_write(codec, 0x0d, 0x28);
- ak4642_write(codec, 0x00, 0x64);
- ak4642_write(codec, 0x01, 0x3b); /* + MCKO bit */
- ak4642_write(codec, 0x01, 0x7b); /* + MCKO bit */
+ snd_soc_write(codec, L_IVC, 0x91); /* volume */
+ snd_soc_write(codec, R_IVC, 0x91); /* volume */
} else {
/*
* start stereo input
*
* PLL Master Mode
* Audio I/F Format:MSB justified (ADC & DAC)
- * Sampling Frequency:44.1kHz
* Pre MIC AMP:+20dB
* MIC Power On
* ALC setting:Refer to Table 35
@@ -211,14 +269,11 @@ 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, 0x05, 0x27);
- ak4642_write(codec, 0x02, 0x05);
- ak4642_write(codec, 0x06, 0x3c);
- ak4642_write(codec, 0x08, 0xe1);
- ak4642_write(codec, 0x0b, 0x00);
- ak4642_write(codec, 0x07, 0x21);
- ak4642_write(codec, 0x00, 0x41);
- ak4642_write(codec, 0x10, 0x01);
+ 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);
}
return 0;
@@ -231,17 +286,11 @@ static void ak4642_dai_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_codec *codec = dai->codec;
if (is_play) {
- /* stop headphone output */
- ak4642_write(codec, 0x01, 0x3b);
- ak4642_write(codec, 0x01, 0x0b);
- ak4642_write(codec, 0x00, 0x40);
- ak4642_write(codec, 0x0e, 0x11);
- ak4642_write(codec, 0x0f, 0x08);
} else {
/* stop stereo input */
- ak4642_write(codec, 0x00, 0x40);
- ak4642_write(codec, 0x10, 0x00);
- ak4642_write(codec, 0x07, 0x01);
+ snd_soc_update_bits(codec, PW_MGMT1, PMADL, 0);
+ snd_soc_update_bits(codec, PW_MGMT3, PMADR, 0);
+ snd_soc_update_bits(codec, ALC_CTL1, ALC, 0);
}
}
@@ -249,20 +298,174 @@ 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 *ak4642 = codec->private_data;
+ struct ak4642_priv *priv = snd_soc_codec_get_drvdata(codec);
+ u8 pll;
+ int extended_freq = 0;
+
+ switch (freq) {
+ case 11289600:
+ pll = PLL2;
+ break;
+ case 12288000:
+ pll = PLL2 | PLL0;
+ break;
+ case 12000000:
+ pll = PLL2 | PLL1;
+ break;
+ case 24000000:
+ pll = PLL2 | PLL1 | PLL0;
+ break;
+ case 13500000:
+ pll = PLL3 | PLL2;
+ break;
+ 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);
- ak4642->sysclk = freq;
return 0;
}
-static struct snd_soc_dai_ops ak4642_dai_ops = {
+static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u8 data;
+ u8 bcko;
+
+ data = MCKO | PMPLL; /* use MCKO */
+ bcko = 0;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ data |= MS;
+ bcko = BCKO_64;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ return -EINVAL;
+ }
+ snd_soc_update_bits(codec, PW_MGMT2, MS | MCKO | PMPLL, data);
+ snd_soc_update_bits(codec, MD_CTL1, BCKO_MASK, bcko);
+
+ /* format type */
+ data = 0;
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_LEFT_J:
+ data = LEFT_J;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ data = I2S;
+ break;
+ /* FIXME
+ * Please add RIGHT_J / DSP support here
+ */
+ default:
+ return -EINVAL;
+ }
+ snd_soc_update_bits(codec, MD_CTL1, DIF_MASK, data);
+
+ return 0;
+}
+
+static int ak4642_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u8 rate;
+
+ switch (params_rate(params)) {
+ case 7350:
+ rate = FS2;
+ break;
+ case 8000:
+ rate = 0;
+ break;
+ case 11025:
+ rate = FS2 | FS0;
+ break;
+ case 12000:
+ rate = FS0;
+ break;
+ case 14700:
+ rate = FS2 | FS1;
+ break;
+ case 16000:
+ rate = FS1;
+ break;
+ case 22050:
+ rate = FS2 | FS1 | FS0;
+ break;
+ case 24000:
+ rate = FS1 | FS0;
+ break;
+ case 29400:
+ rate = FS3 | FS2 | FS1;
+ break;
+ case 32000:
+ rate = FS3 | FS1;
+ break;
+ case 44100:
+ rate = FS3 | FS2 | FS1 | FS0;
+ break;
+ case 48000:
+ rate = FS3 | FS1 | FS0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ snd_soc_update_bits(codec, MD_CTL2, FS_MASK, rate);
+
+ return 0;
+}
+
+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,
+ .set_fmt = ak4642_dai_set_fmt,
+ .hw_params = ak4642_dai_hw_params,
};
-struct snd_soc_dai ak4642_dai = {
- .name = "AK4642",
+static struct snd_soc_dai_driver ak4642_dai = {
+ .name = "ak4642-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
@@ -276,217 +479,148 @@ struct snd_soc_dai ak4642_dai = {
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE },
.ops = &ak4642_dai_ops,
+ .symmetric_rates = 1,
};
-EXPORT_SYMBOL_GPL(ak4642_dai);
-static int ak4642_resume(struct platform_device *pdev)
+static int ak4642_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
- ak4642_sync(codec);
+ regcache_mark_dirty(regmap);
+ regcache_sync(regmap);
return 0;
}
-/*
- * initialise the AK4642 driver
- * register the mixer and dsp interfaces with the kernel
- */
-static int ak4642_init(struct ak4642_priv *ak4642)
-{
- struct snd_soc_codec *codec = &ak4642->codec;
- int ret = 0;
- if (ak4642_codec) {
- dev_err(codec->dev, "Another ak4642 is registered\n");
- return -EINVAL;
- }
+static int ak4642_probe(struct snd_soc_codec *codec)
+{
+ ak4642_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->private_data = ak4642;
- codec->name = "AK4642";
- codec->owner = THIS_MODULE;
- codec->read = ak4642_read_reg_cache;
- codec->write = ak4642_write;
- codec->dai = &ak4642_dai;
- codec->num_dai = 1;
- codec->hw_write = (hw_write_t)i2c_master_send;
- codec->reg_cache_size = ARRAY_SIZE(ak4642_reg);
- codec->reg_cache = kmemdup(ak4642_reg,
- sizeof(ak4642_reg), GFP_KERNEL);
-
- if (!codec->reg_cache)
- return -ENOMEM;
+ return 0;
+}
- ak4642_dai.dev = codec->dev;
- ak4642_codec = codec;
+static int ak4642_remove(struct snd_soc_codec *codec)
+{
+ ak4642_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
- ret = snd_soc_register_codec(codec);
- if (ret) {
- dev_err(codec->dev, "Failed to register codec: %d\n", ret);
- goto reg_cache_err;
- }
+static struct snd_soc_codec_driver soc_codec_dev_ak4642 = {
+ .probe = ak4642_probe,
+ .remove = ak4642_remove,
+ .resume = ak4642_resume,
+ .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),
+};
- ret = snd_soc_register_dai(&ak4642_dai);
- if (ret) {
- dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
- snd_soc_unregister_codec(codec);
- goto reg_cache_err;
- }
+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),
+};
- /*
- * clock setting
- *
- * Audio I/F Format: MSB justified (ADC & DAC)
- * BICK frequency at Master Mode: 64fs
- * Input Master Clock Select at PLL Mode: 11.2896MHz
- * MCKO: Enable
- * Sampling Frequency: 44.1kHz
- *
- * This operation came from example code of
- * "ASAHI KASEI AK4642" (japanese) manual p89.
- *
- * please fix-me
- */
- ak4642_write(codec, 0x01, 0x08);
- ak4642_write(codec, 0x04, 0x4a);
- ak4642_write(codec, 0x05, 0x27);
- ak4642_write(codec, 0x00, 0x40);
- ak4642_write(codec, 0x01, 0x0b);
+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),
+};
- return ret;
+static const struct ak4642_drvdata ak4642_drvdata = {
+ .regmap_config = &ak4642_regmap,
+};
-reg_cache_err:
- kfree(codec->reg_cache);
- codec->reg_cache = NULL;
+static const struct ak4642_drvdata ak4643_drvdata = {
+ .regmap_config = &ak4642_regmap,
+};
- return ret;
-}
+static const struct ak4642_drvdata ak4648_drvdata = {
+ .regmap_config = &ak4648_regmap,
+ .extended_frequencies = 1,
+};
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+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;
- struct snd_soc_codec *codec;
- int ret;
+ struct device_node *np = i2c->dev.of_node;
+ const struct ak4642_drvdata *drvdata = NULL;
+ struct regmap *regmap;
+ struct ak4642_priv *priv;
+
+ 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;
+ }
- ak4642 = kzalloc(sizeof(struct ak4642_priv), GFP_KERNEL);
- if (!ak4642)
+ 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;
- codec = &ak4642->codec;
- codec->dev = &i2c->dev;
+ priv->drvdata = drvdata;
- i2c_set_clientdata(i2c, ak4642);
- codec->control_data = i2c;
+ i2c_set_clientdata(i2c, priv);
- ret = ak4642_init(ak4642);
- if (ret < 0)
- printk(KERN_ERR "failed to initialise AK4642\n");
+ regmap = devm_regmap_init_i2c(i2c, drvdata->regmap_config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
- return ret;
+ return snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_ak4642, &ak4642_dai, 1);
}
static int ak4642_i2c_remove(struct i2c_client *client)
{
- struct ak4642_priv *ak4642 = i2c_get_clientdata(client);
-
- snd_soc_unregister_dai(&ak4642_dai);
- snd_soc_unregister_codec(&ak4642->codec);
- kfree(ak4642->codec.reg_cache);
- kfree(ak4642);
- ak4642_codec = NULL;
-
+ snd_soc_unregister_codec(&client->dev);
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);
static struct i2c_driver ak4642_i2c_driver = {
.driver = {
- .name = "AK4642 I2C Codec",
+ .name = "ak4642-codec",
.owner = THIS_MODULE,
+ .of_match_table = ak4642_of_match,
},
.probe = ak4642_i2c_probe,
.remove = ak4642_i2c_remove,
.id_table = ak4642_i2c_id,
};
-#endif
-
-static int ak4642_probe(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- int ret;
-
- if (!ak4642_codec) {
- dev_err(&pdev->dev, "Codec device not registered\n");
- return -ENODEV;
- }
-
- socdev->card->codec = ak4642_codec;
-
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- printk(KERN_ERR "ak4642: failed to create pcms\n");
- goto pcm_err;
- }
-
- dev_info(&pdev->dev, "AK4642 Audio Codec %s", AK4642_VERSION);
- return ret;
-
-pcm_err:
- return ret;
-
-}
-
-/* power down chip */
-static int ak4642_remove(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
- return 0;
-}
-
-struct snd_soc_codec_device soc_codec_dev_ak4642 = {
- .probe = ak4642_probe,
- .remove = ak4642_remove,
- .resume = ak4642_resume,
-};
-EXPORT_SYMBOL_GPL(soc_codec_dev_ak4642);
-
-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 2025-12-12 11:14:33 +0000