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WSL2-Linux-Kernel
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Merge branch 'regmap-asoc' into for-3.2

This commit is contained in:
Mark Brown 2011-08-08 15:00:13 +09:00
Родитель 18d4ed4342 0671da189c
Коммит bb3784ae36
3 изменённых файлов: 43 добавлений и 285 удалений
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3
include/sound/soc.h
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@ -19,6 +19,7 @@
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/control.h>
@ -260,6 +261,7 @@ extern struct snd_ac97_bus_ops soc_ac97_ops;
enum snd_soc_control_type {
SND_SOC_I2C = 1,
SND_SOC_SPI,
SND_SOC_REGMAP,
};
enum snd_soc_compress_type {
@ -576,6 +578,7 @@ struct snd_soc_codec {
const void *reg_def_copy;
const struct snd_soc_cache_ops *cache_ops;
struct mutex cache_rw_mutex;
int val_bytes;
/* dapm */
struct snd_soc_dapm_context dapm;

2
sound/soc/Kconfig
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@ -7,6 +7,8 @@ menuconfig SND_SOC
select SND_PCM
select AC97_BUS if SND_SOC_AC97_BUS
select SND_JACK if INPUT=y || INPUT=SND
select REGMAP_I2C if I2C
select REGMAP_SPI if SPI_MASTER
---help---
If you want ASoC support, you should say Y here and also to the

323
sound/soc/soc-io.c
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@ -13,26 +13,13 @@
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include <trace/events/asoc.h>
#ifdef CONFIG_SPI_MASTER
static int do_spi_write(void *control, const char *data, int len)
{
struct spi_device *spi = control;
int ret;
ret = spi_write(spi, data, len);
if (ret < 0)
return ret;
return len;
}
#endif
static int do_hw_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value, const void *data, int len)
static int hw_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
int ret;
@ -49,13 +36,7 @@ static int do_hw_write(struct snd_soc_codec *codec, unsigned int reg,
return 0;
}
ret = codec->hw_write(codec->control_data, data, len);
if (ret == len)
return 0;
if (ret < 0)
return ret;
else
return -EIO;
return regmap_write(codec->control_data, reg, value);
}
static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
@ -69,8 +50,11 @@ static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
ret = regmap_read(codec->control_data, reg, &val);
if (ret == 0)
return val;
else
return ret;
}
ret = snd_soc_cache_read(codec, reg, &val);
@ -79,183 +63,18 @@ static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
return val;
}
static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u16 data;
data = cpu_to_be16((reg << 12) | (value & 0xffffff));
return do_hw_write(codec, reg, value, &data, 2);
}
static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u16 data;
data = cpu_to_be16((reg << 9) | (value & 0x1ff));
return do_hw_write(codec, reg, value, &data, 2);
}
static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u8 data[2];
reg &= 0xff;
data[0] = reg;
data[1] = value & 0xff;
return do_hw_write(codec, reg, value, data, 2);
}
static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u8 data[3];
u16 val = cpu_to_be16(value);
data[0] = reg;
memcpy(&data[1], &val, sizeof(val));
return do_hw_write(codec, reg, value, data, 3);
}
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
static unsigned int do_i2c_read(struct snd_soc_codec *codec,
void *reg, int reglen,
void *data, int datalen)
{
struct i2c_msg xfer[2];
int ret;
struct i2c_client *client = codec->control_data;
/* Write register */
xfer[0].addr = client->addr;
xfer[0].flags = 0;
xfer[0].len = reglen;
xfer[0].buf = reg;
/* Read data */
xfer[1].addr = client->addr;
xfer[1].flags = I2C_M_RD;
xfer[1].len = datalen;
xfer[1].buf = data;
ret = i2c_transfer(client->adapter, xfer, 2);
if (ret == 2)
return 0;
else if (ret < 0)
return ret;
else
return -EIO;
}
#endif
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
static unsigned int snd_soc_8_8_read_i2c(struct snd_soc_codec *codec,
unsigned int r)
{
u8 reg = r;
u8 data;
int ret;
ret = do_i2c_read(codec, &reg, 1, &data, 1);
if (ret < 0)
return 0;
return data;
}
#else
#define snd_soc_8_8_read_i2c NULL
#endif
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
static unsigned int snd_soc_8_16_read_i2c(struct snd_soc_codec *codec,
unsigned int r)
{
u8 reg = r;
u16 data;
int ret;
ret = do_i2c_read(codec, &reg, 1, &data, 2);
if (ret < 0)
return 0;
return (data >> 8) | ((data & 0xff) << 8);
}
#else
#define snd_soc_8_16_read_i2c NULL
#endif
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
static unsigned int snd_soc_16_8_read_i2c(struct snd_soc_codec *codec,
unsigned int r)
{
u16 reg = r;
u8 data;
int ret;
ret = do_i2c_read(codec, &reg, 2, &data, 1);
if (ret < 0)
return 0;
return data;
}
#else
#define snd_soc_16_8_read_i2c NULL
#endif
static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u8 data[3];
u16 rval = cpu_to_be16(reg);
memcpy(data, &rval, sizeof(rval));
data[2] = value;
return do_hw_write(codec, reg, value, data, 3);
}
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
static unsigned int snd_soc_16_16_read_i2c(struct snd_soc_codec *codec,
unsigned int r)
{
u16 reg = cpu_to_be16(r);
u16 data;
int ret;
ret = do_i2c_read(codec, &reg, 2, &data, 2);
if (ret < 0)
return 0;
return be16_to_cpu(data);
}
#else
#define snd_soc_16_16_read_i2c NULL
#endif
static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u16 data[2];
data[0] = cpu_to_be16(reg);
data[1] = cpu_to_be16(value);
return do_hw_write(codec, reg, value, data, sizeof(data));
}
/* Primitive bulk write support for soc-cache. The data pointed to by
* `data' needs to already be in the form the hardware expects
* including any leading register specific data. Any data written
* through this function will not go through the cache as it only
* handles writing to volatile or out of bounds registers.
* `data' needs to already be in the form the hardware expects. Any
* data written through this function will not go through the cache as
* it only handles writing to volatile or out of bounds registers.
*
* This is currently only supported for devices using the regmap API
* wrappers.
*/
static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec, unsigned int reg,
static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec,
unsigned int reg,
const void *data, size_t len)
{
int ret;
/* To ensure that we don't get out of sync with the cache, check
* whether the base register is volatile or if we've directly asked
* to bypass the cache. Out of bounds registers are considered
@ -266,66 +85,9 @@ static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec, unsigned int r
&& reg < codec->driver->reg_cache_size)
return -EINVAL;
switch (codec->control_type) {
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
case SND_SOC_I2C:
ret = i2c_master_send(to_i2c_client(codec->dev), data, len);
break;
#endif
#if defined(CONFIG_SPI_MASTER)
case SND_SOC_SPI:
ret = spi_write(to_spi_device(codec->dev), data, len);
break;
#endif
default:
BUG();
}
if (ret == len)
return 0;
if (ret < 0)
return ret;
else
return -EIO;
return regmap_raw_write(codec->control_data, reg, data, len);
}
static struct {
int addr_bits;
int data_bits;
int (*write)(struct snd_soc_codec *codec, unsigned int, unsigned int);
unsigned int (*read)(struct snd_soc_codec *, unsigned int);
unsigned int (*i2c_read)(struct snd_soc_codec *, unsigned int);
} io_types[] = {
{
.addr_bits = 4, .data_bits = 12,
.write = snd_soc_4_12_write,
},
{
.addr_bits = 7, .data_bits = 9,
.write = snd_soc_7_9_write,
},
{
.addr_bits = 8, .data_bits = 8,
.write = snd_soc_8_8_write,
.i2c_read = snd_soc_8_8_read_i2c,
},
{
.addr_bits = 8, .data_bits = 16,
.write = snd_soc_8_16_write,
.i2c_read = snd_soc_8_16_read_i2c,
},
{
.addr_bits = 16, .data_bits = 8,
.write = snd_soc_16_8_write,
.i2c_read = snd_soc_16_8_read_i2c,
},
{
.addr_bits = 16, .data_bits = 16,
.write = snd_soc_16_16_write,
.i2c_read = snd_soc_16_16_read_i2c,
},
};
/**
* snd_soc_codec_set_cache_io: Set up standard I/O functions.
*
@ -349,47 +111,38 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
int addr_bits, int data_bits,
enum snd_soc_control_type control)
{
int i;
struct regmap_config config;
for (i = 0; i < ARRAY_SIZE(io_types); i++)
if (io_types[i].addr_bits == addr_bits &&
io_types[i].data_bits == data_bits)
break;
if (i == ARRAY_SIZE(io_types)) {
printk(KERN_ERR
"No I/O functions for %d bit address %d bit data\n",
addr_bits, data_bits);
return -EINVAL;
}
codec->write = io_types[i].write;
memset(&config, 0, sizeof(config));
codec->write = hw_write;
codec->read = hw_read;
codec->bulk_write_raw = snd_soc_hw_bulk_write_raw;
config.reg_bits = addr_bits;
config.val_bits = data_bits;
switch (control) {
case SND_SOC_I2C:
#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
codec->hw_write = (hw_write_t)i2c_master_send;
#endif
if (io_types[i].i2c_read)
codec->hw_read = io_types[i].i2c_read;
codec->control_data = container_of(codec->dev,
struct i2c_client,
dev);
codec->control_data = regmap_init_i2c(to_i2c_client(codec->dev),
&config);
break;
case SND_SOC_SPI:
#ifdef CONFIG_SPI_MASTER
codec->hw_write = do_spi_write;
#endif
codec->control_data = container_of(codec->dev,
struct spi_device,
dev);
codec->control_data = regmap_init_spi(to_spi_device(codec->dev),
&config);
break;
case SND_SOC_REGMAP:
/* Device has made its own regmap arrangements */
break;
default:
return -EINVAL;
}
if (IS_ERR(codec->control_data))
return PTR_ERR(codec->control_data);
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io);