ASoC: soc-cache: Add spi_write support for all I/O types
Ensure that all drivers that use SPI and I2C will work properly by providing SPI write functions for all different I/O types. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -211,6 +211,36 @@ static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec,
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return cache[reg];
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}
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#if defined(CONFIG_SPI_MASTER)
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static int snd_soc_8_8_spi_write(void *control_data, const char *data,
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int len)
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{
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struct spi_device *spi = control_data;
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struct spi_transfer t;
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struct spi_message m;
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u8 msg[2];
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if (len <= 0)
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return 0;
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msg[0] = data[0];
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msg[1] = data[1];
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spi_message_init(&m);
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memset(&t, 0, (sizeof t));
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t.tx_buf = &msg[0];
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t.len = len;
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spi_message_add_tail(&t, &m);
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spi_sync(spi, &m);
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return len;
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}
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#else
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#define snd_soc_8_8_spi_write NULL
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#endif
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static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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@ -254,6 +284,37 @@ static unsigned int snd_soc_8_16_read(struct snd_soc_codec *codec,
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}
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}
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#if defined(CONFIG_SPI_MASTER)
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static int snd_soc_8_16_spi_write(void *control_data, const char *data,
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int len)
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{
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struct spi_device *spi = control_data;
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struct spi_transfer t;
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struct spi_message m;
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u8 msg[3];
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if (len <= 0)
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return 0;
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msg[0] = data[0];
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msg[1] = data[1];
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msg[2] = data[2];
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spi_message_init(&m);
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memset(&t, 0, (sizeof t));
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t.tx_buf = &msg[0];
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t.len = len;
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spi_message_add_tail(&t, &m);
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spi_sync(spi, &m);
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return len;
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}
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#else
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#define snd_soc_8_16_spi_write NULL
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#endif
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#if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE))
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static unsigned int snd_soc_8_8_read_i2c(struct snd_soc_codec *codec,
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unsigned int r)
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@ -518,6 +579,38 @@ static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,
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return -EIO;
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}
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#if defined(CONFIG_SPI_MASTER)
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static int snd_soc_16_16_spi_write(void *control_data, const char *data,
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int len)
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{
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struct spi_device *spi = control_data;
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struct spi_transfer t;
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struct spi_message m;
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u8 msg[4];
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if (len <= 0)
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return 0;
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msg[0] = data[0];
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msg[1] = data[1];
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msg[2] = data[2];
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msg[3] = data[3];
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spi_message_init(&m);
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memset(&t, 0, (sizeof t));
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t.tx_buf = &msg[0];
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t.len = len;
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spi_message_add_tail(&t, &m);
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spi_sync(spi, &m);
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return len;
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}
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#else
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#define snd_soc_16_16_spi_write NULL
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#endif
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static struct {
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int addr_bits;
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int data_bits;
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@ -540,11 +633,13 @@ static struct {
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.addr_bits = 8, .data_bits = 8,
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.write = snd_soc_8_8_write, .read = snd_soc_8_8_read,
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.i2c_read = snd_soc_8_8_read_i2c,
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.spi_write = snd_soc_8_8_spi_write,
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},
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{
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.addr_bits = 8, .data_bits = 16,
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.write = snd_soc_8_16_write, .read = snd_soc_8_16_read,
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.i2c_read = snd_soc_8_16_read_i2c,
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.spi_write = snd_soc_8_16_spi_write,
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},
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{
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.addr_bits = 16, .data_bits = 8,
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@ -556,6 +651,7 @@ static struct {
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.addr_bits = 16, .data_bits = 16,
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.write = snd_soc_16_16_write, .read = snd_soc_16_16_read,
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.i2c_read = snd_soc_16_16_read_i2c,
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.spi_write = snd_soc_16_16_spi_write,
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},
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};
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