#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "ssm2602.h"
-#define SSM2602_VERSION "0.1"
-
enum ssm2602_type {
SSM2602,
SSM2604,
/* codec private data */
struct ssm2602_priv {
unsigned int sysclk;
- enum snd_soc_control_type control_type;
+ struct snd_pcm_hw_constraint_list *sysclk_constraints;
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
+ struct regmap *regmap;
+
enum ssm2602_type type;
unsigned int clk_out_pwr;
};
0x0000, 0x0000
};
-#define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0)
/*Appending several "None"s just for OSS mixer use*/
static const char *ssm2602_input_select[] = {
{"ADC", NULL, "Line Input"},
};
+static const unsigned int ssm2602_rates_12288000[] = {
+ 8000, 32000, 48000, 96000,
+};
+
+static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
+ .list = ssm2602_rates_12288000,
+ .count = ARRAY_SIZE(ssm2602_rates_12288000),
+};
+
+static const unsigned int ssm2602_rates_11289600[] = {
+ 8000, 44100, 88200,
+};
+
+static struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
+ .list = ssm2602_rates_11289600,
+ .count = ARRAY_SIZE(ssm2602_rates_11289600),
+};
+
struct ssm2602_coeff {
u32 mclk;
u32 rate;
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_codec *codec = dai->codec;
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
- u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
+ unsigned int iface;
if (substream == ssm2602->slave_substream) {
dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
if (srate < 0)
return srate;
- snd_soc_write(codec, SSM2602_SRATE, srate);
+ regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
/* bit size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
+ iface = 0x0;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
- iface |= 0x0004;
+ iface = 0x4;
break;
case SNDRV_PCM_FORMAT_S24_LE:
- iface |= 0x0008;
+ iface = 0x8;
break;
case SNDRV_PCM_FORMAT_S32_LE:
- iface |= 0x000c;
+ iface = 0xc;
break;
+ default:
+ return -EINVAL;
}
- snd_soc_write(codec, SSM2602_IFACE, iface);
+ regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
+ IFACE_AUDIO_DATA_LEN, iface);
return 0;
}
static int ssm2602_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_codec *codec = dai->codec;
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
struct snd_pcm_runtime *master_runtime;
} else
ssm2602->master_substream = substream;
+ if (ssm2602->sysclk_constraints) {
+ snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ ssm2602->sysclk_constraints);
+ }
+
return 0;
}
static void ssm2602_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_codec *codec = dai->codec;
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
if (ssm2602->master_substream == substream)
static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
{
- struct snd_soc_codec *codec = dai->codec;
+ struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec);
if (mute)
- snd_soc_update_bits(codec, SSM2602_APDIGI,
+ regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
APDIGI_ENABLE_DAC_MUTE,
APDIGI_ENABLE_DAC_MUTE);
else
- snd_soc_update_bits(codec, SSM2602_APDIGI,
+ regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
APDIGI_ENABLE_DAC_MUTE, 0);
return 0;
}
return -EINVAL;
switch (freq) {
- case 11289600:
- case 12000000:
case 12288000:
- case 16934400:
case 18432000:
- ssm2602->sysclk = freq;
+ ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
+ break;
+ case 11289600:
+ case 16934400:
+ ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
+ break;
+ case 12000000:
+ ssm2602->sysclk_constraints = NULL;
break;
default:
return -EINVAL;
}
+ ssm2602->sysclk = freq;
} else {
unsigned int mask;
else
ssm2602->clk_out_pwr &= ~mask;
- snd_soc_update_bits(codec, SSM2602_PWR,
+ regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
}
static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
- struct snd_soc_codec *codec = codec_dai->codec;
- u16 iface = 0;
+ struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec);
+ unsigned int iface = 0;
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
}
/* set iface */
- snd_soc_write(codec, SSM2602_IFACE, iface);
+ regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
return 0;
}
switch (level) {
case SND_SOC_BIAS_ON:
/* vref/mid on, osc and clkout on if enabled */
- snd_soc_update_bits(codec, SSM2602_PWR,
+ regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
ssm2602->clk_out_pwr);
break;
break;
case SND_SOC_BIAS_STANDBY:
/* everything off except vref/vmid, */
- snd_soc_update_bits(codec, SSM2602_PWR,
+ regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
PWR_CLK_OUT_PDN | PWR_OSC_PDN);
break;
case SND_SOC_BIAS_OFF:
/* everything off */
- snd_soc_update_bits(codec, SSM2602_PWR,
+ regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
PWR_POWER_OFF, PWR_POWER_OFF);
break;
static int ssm2602_probe(struct snd_soc_codec *codec)
{
+ struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
struct snd_soc_dapm_context *dapm = &codec->dapm;
int ret;
- snd_soc_update_bits(codec, SSM2602_LOUT1V,
+ regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
- snd_soc_update_bits(codec, SSM2602_ROUT1V,
+ regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
int ret;
- pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
-
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
+ codec->control_data = ssm2602->regmap;
+ ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
if (ret < 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
}
- ret = ssm2602_reset(codec);
+ ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
if (ret < 0) {
dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
return ret;
}
/* set the update bits */
- snd_soc_update_bits(codec, SSM2602_LINVOL,
+ regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
- snd_soc_update_bits(codec, SSM2602_RINVOL,
+ regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
/*select Line in as default input*/
- snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
+ regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
APANA_ENABLE_MIC_BOOST);
switch (ssm2602->type) {
.suspend = ssm2602_suspend,
.resume = ssm2602_resume,
.set_bias_level = ssm2602_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(ssm2602_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = ssm2602_reg,
.controls = ssm260x_snd_controls,
.num_controls = ARRAY_SIZE(ssm260x_snd_controls),
.num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
};
+static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
+{
+ return reg == SSM2602_RESET;
+}
+
+static const struct regmap_config ssm2602_regmap_config = {
+ .val_bits = 9,
+ .reg_bits = 7,
+
+ .max_register = SSM2602_RESET,
+ .volatile_reg = ssm2602_register_volatile,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults_raw = ssm2602_reg,
+ .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg),
+};
+
#if defined(CONFIG_SPI_MASTER)
static int __devinit ssm2602_spi_probe(struct spi_device *spi)
{
return -ENOMEM;
spi_set_drvdata(spi, ssm2602);
- ssm2602->control_type = SND_SOC_SPI;
ssm2602->type = SSM2602;
+ ssm2602->regmap = devm_regmap_init_spi(spi, &ssm2602_regmap_config);
+ if (IS_ERR(ssm2602->regmap))
+ return PTR_ERR(ssm2602->regmap);
+
ret = snd_soc_register_codec(&spi->dev,
&soc_codec_dev_ssm2602, &ssm2602_dai, 1);
return ret;
return -ENOMEM;
i2c_set_clientdata(i2c, ssm2602);
- ssm2602->control_type = SND_SOC_I2C;
ssm2602->type = id->driver_data;
+ ssm2602->regmap = devm_regmap_init_i2c(i2c, &ssm2602_regmap_config);
+ if (IS_ERR(ssm2602->regmap))
+ return PTR_ERR(ssm2602->regmap);
+
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_ssm2602, &ssm2602_dai, 1);
return ret;
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