unsigned int reg)
{
u16 *cache = codec->reg_cache;
- if (reg >= codec->driver->reg_cache_size)
- return -1;
+
+ if (reg >= codec->driver->reg_cache_size ||
+ snd_soc_codec_volatile_register(codec, reg)) {
+ if (codec->cache_only)
+ return -1;
+
+ return codec->hw_read(codec, reg);
+ }
+
return cache[reg];
}
u8 data[2];
int ret;
- BUG_ON(codec->driver->volatile_register);
-
data[0] = (reg << 4) | ((value >> 8) & 0x000f);
data[1] = value & 0x00ff;
- if (reg < codec->driver->reg_cache_size)
- cache[reg] = value;
+ if (!snd_soc_codec_volatile_register(codec, reg) &&
+ reg < codec->driver->reg_cache_size)
+ cache[reg] = value;
if (codec->cache_only) {
codec->cache_sync = 1;
unsigned int reg)
{
u16 *cache = codec->reg_cache;
- if (reg >= codec->driver->reg_cache_size)
- return -1;
+
+ if (reg >= codec->driver->reg_cache_size ||
+ snd_soc_codec_volatile_register(codec, reg)) {
+ if (codec->cache_only)
+ return -1;
+
+ return codec->hw_read(codec, reg);
+ }
+
return cache[reg];
}
u8 data[2];
int ret;
- BUG_ON(codec->driver->volatile_register);
-
data[0] = (reg << 1) | ((value >> 8) & 0x0001);
data[1] = value & 0x00ff;
- if (reg < codec->driver->reg_cache_size)
- cache[reg] = value;
+ if (!snd_soc_codec_volatile_register(codec, reg) &&
+ reg < codec->driver->reg_cache_size)
+ cache[reg] = value;
if (codec->cache_only) {
codec->cache_sync = 1;
u8 *cache = codec->reg_cache;
u8 data[2];
- BUG_ON(codec->driver->volatile_register);
-
reg &= 0xff;
data[0] = reg;
data[1] = value & 0xff;
- if (reg < codec->driver->reg_cache_size)
- cache[reg] = value;
+ if (!snd_soc_codec_volatile_register(codec, reg) &&
+ reg < codec->driver->reg_cache_size)
+ cache[reg] = value;
if (codec->cache_only) {
codec->cache_sync = 1;
unsigned int reg)
{
u8 *cache = codec->reg_cache;
+
reg &= 0xff;
- if (reg >= codec->driver->reg_cache_size)
- return -1;
+ if (reg >= codec->driver->reg_cache_size ||
+ snd_soc_codec_volatile_register(codec, reg)) {
+ if (codec->cache_only)
+ return -1;
+
+ return codec->hw_read(codec, reg);
+ }
+
return cache[reg];
}
+#if defined(CONFIG_SPI_MASTER)
+static int snd_soc_8_8_spi_write(void *control_data, const char *data,
+ int len)
+{
+ struct spi_device *spi = control_data;
+ struct spi_transfer t;
+ struct spi_message m;
+ u8 msg[2];
+
+ if (len <= 0)
+ return 0;
+
+ msg[0] = data[0];
+ msg[1] = data[1];
+
+ spi_message_init(&m);
+ memset(&t, 0, (sizeof t));
+
+ t.tx_buf = &msg[0];
+ t.len = len;
+
+ spi_message_add_tail(&t, &m);
+ spi_sync(spi, &m);
+
+ return len;
+}
+#else
+#define snd_soc_8_8_spi_write NULL
+#endif
+
static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
data[1] = (value >> 8) & 0xff;
data[2] = value & 0xff;
- if (!snd_soc_codec_volatile_register(codec, reg))
+ if (!snd_soc_codec_volatile_register(codec, reg) &&
+ reg < codec->driver->reg_cache_size)
reg_cache[reg] = value;
if (codec->cache_only) {
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg)) {
if (codec->cache_only)
- return -EINVAL;
+ return -1;
return codec->hw_read(codec, reg);
} else {
}
}
+#if defined(CONFIG_SPI_MASTER)
+static int snd_soc_8_16_spi_write(void *control_data, const char *data,
+ int len)
+{
+ struct spi_device *spi = control_data;
+ struct spi_transfer t;
+ struct spi_message m;
+ u8 msg[3];
+
+ if (len <= 0)
+ return 0;
+
+ msg[0] = data[0];
+ msg[1] = data[1];
+ msg[2] = data[2];
+
+ spi_message_init(&m);
+ memset(&t, 0, (sizeof t));
+
+ t.tx_buf = &msg[0];
+ t.len = len;
+
+ spi_message_add_tail(&t, &m);
+ spi_sync(spi, &m);
+
+ return len;
+}
+#else
+#define snd_soc_8_16_spi_write NULL
+#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 *cache = codec->reg_cache;
reg &= 0xff;
- if (reg >= codec->driver->reg_cache_size)
- return -1;
+ if (reg >= codec->driver->reg_cache_size ||
+ snd_soc_codec_volatile_register(codec, reg)) {
+ if (codec->cache_only)
+ return -1;
+
+ return codec->hw_read(codec, reg);
+ }
+
return cache[reg];
}
u8 data[3];
int ret;
- BUG_ON(codec->driver->volatile_register);
-
data[0] = (reg >> 8) & 0xff;
data[1] = reg & 0xff;
data[2] = value;
reg &= 0xff;
- if (reg < codec->driver->reg_cache_size)
- cache[reg] = value;
+ if (!snd_soc_codec_volatile_register(codec, reg) &&
+ reg < codec->driver->reg_cache_size)
+ cache[reg] = value;
if (codec->cache_only) {
codec->cache_sync = 1;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg)) {
if (codec->cache_only)
- return -EINVAL;
+ return -1;
return codec->hw_read(codec, reg);
}
data[2] = (value >> 8) & 0xff;
data[3] = value & 0xff;
- if (reg < codec->driver->reg_cache_size)
- cache[reg] = value;
+ if (!snd_soc_codec_volatile_register(codec, reg) &&
+ reg < codec->driver->reg_cache_size)
+ cache[reg] = value;
if (codec->cache_only) {
codec->cache_sync = 1;
return -EIO;
}
+#if defined(CONFIG_SPI_MASTER)
+static int snd_soc_16_16_spi_write(void *control_data, const char *data,
+ int len)
+{
+ struct spi_device *spi = control_data;
+ struct spi_transfer t;
+ struct spi_message m;
+ u8 msg[4];
+
+ if (len <= 0)
+ return 0;
+
+ msg[0] = data[0];
+ msg[1] = data[1];
+ msg[2] = data[2];
+ msg[3] = data[3];
+
+ spi_message_init(&m);
+ memset(&t, 0, (sizeof t));
+
+ t.tx_buf = &msg[0];
+ t.len = len;
+
+ spi_message_add_tail(&t, &m);
+ spi_sync(spi, &m);
+
+ return len;
+}
+#else
+#define snd_soc_16_16_spi_write NULL
+#endif
+
static struct {
int addr_bits;
int data_bits;
.addr_bits = 8, .data_bits = 8,
.write = snd_soc_8_8_write, .read = snd_soc_8_8_read,
.i2c_read = snd_soc_8_8_read_i2c,
+ .spi_write = snd_soc_8_8_spi_write,
},
{
.addr_bits = 8, .data_bits = 16,
.write = snd_soc_8_16_write, .read = snd_soc_8_16_read,
.i2c_read = snd_soc_8_16_read_i2c,
+ .spi_write = snd_soc_8_16_spi_write,
},
{
.addr_bits = 16, .data_bits = 8,
.addr_bits = 16, .data_bits = 16,
.write = snd_soc_16_16_write, .read = snd_soc_16_16_read,
.i2c_read = snd_soc_16_16_read_i2c,
+ .spi_write = snd_soc_16_16_spi_write,
},
};