#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
+#include <linux/spi/spi.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/core.h>
struct ssm2602_priv {
unsigned int sysclk;
enum snd_soc_control_type control_type;
- void *control_data;
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
};
0x0000, 0x0000
};
-/*
- * read ssm2602 register cache
- */
-static inline unsigned int ssm2602_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
- if (reg == SSM2602_RESET)
- return 0;
- if (reg >= SSM2602_CACHEREGNUM)
- return -1;
- return cache[reg];
-}
-
-/*
- * write ssm2602 register cache
- */
-static inline void ssm2602_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
-{
- u16 *cache = codec->reg_cache;
- if (reg >= SSM2602_CACHEREGNUM)
- return;
- cache[reg] = value;
-}
-
-/*
- * write to the ssm2602 register space
- */
-static int ssm2602_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[2];
-
- /* data is
- * D15..D9 ssm2602 register offset
- * D8...D0 register data
- */
- data[0] = (reg << 1) | ((value >> 8) & 0x0001);
- data[1] = value & 0x00ff;
-
- ssm2602_write_reg_cache(codec, reg, value);
- if (codec->hw_write(codec->control_data, data, 2) == 2)
- return 0;
- else
- return -EIO;
-}
-
-#define ssm2602_reset(c) ssm2602_write(c, SSM2602_RESET, 0)
+#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[] = {
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
- struct i2c_client *i2c = codec->control_data;
- u16 iface = ssm2602_read_reg_cache(codec, SSM2602_IFACE) & 0xfff3;
+ u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
int i = get_coeff(ssm2602->sysclk, params_rate(params));
if (substream == ssm2602->slave_substream) {
- dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
+ dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
return 0;
}
srate = (coeff_div[i].sr << 2) |
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
- ssm2602_write(codec, SSM2602_ACTIVE, 0);
- ssm2602_write(codec, SSM2602_SRATE, srate);
+ snd_soc_write(codec, SSM2602_ACTIVE, 0);
+ snd_soc_write(codec, SSM2602_SRATE, srate);
/* bit size */
switch (params_format(params)) {
iface |= 0x000c;
break;
}
- ssm2602_write(codec, SSM2602_IFACE, iface);
- ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
+ snd_soc_write(codec, SSM2602_IFACE, iface);
+ snd_soc_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
return 0;
}
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
/* set active */
- ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
+ snd_soc_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
return 0;
}
/* deactivate */
if (!codec->active)
- ssm2602_write(codec, SSM2602_ACTIVE, 0);
+ snd_soc_write(codec, SSM2602_ACTIVE, 0);
if (ssm2602->master_substream == substream)
ssm2602->master_substream = ssm2602->slave_substream;
static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = ssm2602_read_reg_cache(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE;
+ u16 mute_reg = snd_soc_read(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE;
if (mute)
- ssm2602_write(codec, SSM2602_APDIGI,
+ snd_soc_write(codec, SSM2602_APDIGI,
mute_reg | APDIGI_ENABLE_DAC_MUTE);
else
- ssm2602_write(codec, SSM2602_APDIGI, mute_reg);
+ snd_soc_write(codec, SSM2602_APDIGI, mute_reg);
return 0;
}
}
/* set iface */
- ssm2602_write(codec, SSM2602_IFACE, iface);
+ snd_soc_write(codec, SSM2602_IFACE, iface);
return 0;
}
static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- u16 reg = ssm2602_read_reg_cache(codec, SSM2602_PWR) & 0xff7f;
+ u16 reg = snd_soc_read(codec, SSM2602_PWR) & 0xff7f;
switch (level) {
case SND_SOC_BIAS_ON:
/* vref/mid, osc on, dac unmute */
- ssm2602_write(codec, SSM2602_PWR, reg);
+ snd_soc_write(codec, SSM2602_PWR, reg);
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
/* everything off except vref/vmid, */
- ssm2602_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN);
+ snd_soc_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN);
break;
case SND_SOC_BIAS_OFF:
/* everything off, dac mute, inactive */
- ssm2602_write(codec, SSM2602_ACTIVE, 0);
- ssm2602_write(codec, SSM2602_PWR, 0xffff);
+ snd_soc_write(codec, SSM2602_ACTIVE, 0);
+ snd_soc_write(codec, SSM2602_PWR, 0xffff);
break;
}
static int ssm2602_resume(struct snd_soc_codec *codec)
{
- int i;
- u8 data[2];
- u16 *cache = codec->reg_cache;
-
- /* Sync reg_cache with the hardware */
- for (i = 0; i < ARRAY_SIZE(ssm2602_reg); i++) {
- data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
- data[1] = cache[i] & 0x00ff;
- codec->hw_write(codec->control_data, data, 2);
- }
+ snd_soc_cache_sync(codec);
+
ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
return 0;
}
pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
- codec->control_data = ssm2602->control_data;
+ ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ return ret;
+ }
- ssm2602_reset(codec);
+ ret = ssm2602_reset(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
+ return ret;
+ }
/*power on device*/
- ssm2602_write(codec, SSM2602_ACTIVE, 0);
+ snd_soc_write(codec, SSM2602_ACTIVE, 0);
/* set the update bits */
- reg = ssm2602_read_reg_cache(codec, SSM2602_LINVOL);
- ssm2602_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH);
- reg = ssm2602_read_reg_cache(codec, SSM2602_RINVOL);
- ssm2602_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH);
- reg = ssm2602_read_reg_cache(codec, SSM2602_LOUT1V);
- ssm2602_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH);
- reg = ssm2602_read_reg_cache(codec, SSM2602_ROUT1V);
- ssm2602_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH);
+ reg = snd_soc_read(codec, SSM2602_LINVOL);
+ snd_soc_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH);
+ reg = snd_soc_read(codec, SSM2602_RINVOL);
+ snd_soc_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH);
+ reg = snd_soc_read(codec, SSM2602_LOUT1V);
+ snd_soc_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH);
+ reg = snd_soc_read(codec, SSM2602_ROUT1V);
+ snd_soc_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH);
/*select Line in as default input*/
- ssm2602_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
+ snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
APANA_ENABLE_MIC_BOOST);
- ssm2602_write(codec, SSM2602_PWR, 0);
+ snd_soc_write(codec, SSM2602_PWR, 0);
snd_soc_add_controls(codec, ssm2602_snd_controls,
ARRAY_SIZE(ssm2602_snd_controls));
ssm2602_add_widgets(codec);
- return ret;
+ return 0;
}
/* remove everything here */
.remove = ssm2602_remove,
.suspend = ssm2602_suspend,
.resume = ssm2602_resume,
- .read = ssm2602_read_reg_cache,
- .write = ssm2602_write,
.set_bias_level = ssm2602_set_bias_level,
.reg_cache_size = ARRAY_SIZE(ssm2602_reg),
.reg_word_size = sizeof(u16),
.reg_cache_default = ssm2602_reg,
};
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit ssm2602_spi_probe(struct spi_device *spi)
+{
+ struct ssm2602_priv *ssm2602;
+ int ret;
+
+ ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
+ if (ssm2602 == NULL)
+ return -ENOMEM;
+
+ spi_set_drvdata(spi, ssm2602);
+ ssm2602->control_type = SND_SOC_SPI;
+
+ ret = snd_soc_register_codec(&spi->dev,
+ &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
+ if (ret < 0)
+ kfree(ssm2602);
+ return ret;
+}
+
+static int __devexit ssm2602_spi_remove(struct spi_device *spi)
+{
+ snd_soc_unregister_codec(&spi->dev);
+ kfree(spi_get_drvdata(spi));
+ return 0;
+}
+
+static struct spi_driver ssm2602_spi_driver = {
+ .driver = {
+ .name = "ssm2602",
+ .owner = THIS_MODULE,
+ },
+ .probe = ssm2602_spi_probe,
+ .remove = __devexit_p(ssm2602_spi_remove),
+};
+#endif
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
/*
* ssm2602 2 wire address is determined by GPIO5
return -ENOMEM;
i2c_set_clientdata(i2c, ssm2602);
- ssm2602->control_data = i2c;
ssm2602->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
/* corgi i2c codec control layer */
static struct i2c_driver ssm2602_i2c_driver = {
.driver = {
- .name = "ssm2602-codec",
+ .name = "ssm2602",
.owner = THIS_MODULE,
},
.probe = ssm2602_i2c_probe,
static int __init ssm2602_modinit(void)
{
int ret = 0;
+
+#if defined(CONFIG_SPI_MASTER)
+ ret = spi_register_driver(&ssm2602_spi_driver);
+ if (ret)
+ return ret;
+#endif
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
ret = i2c_add_driver(&ssm2602_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register SSM2602 I2C driver: %d\n",
- ret);
- }
+ if (ret)
+ return ret;
#endif
+
return ret;
}
module_init(ssm2602_modinit);
static void __exit ssm2602_exit(void)
{
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&ssm2602_spi_driver);
+#endif
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&ssm2602_i2c_driver);
#endif
projects / mv-sheeva.git / blobdiff