summaryrefslogtreecommitdiffstats
path: root/sound/soc/soc-cache.c
diff options
context:
space:
mode:
authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-05-30 10:54:18 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-05-30 10:54:18 +0800
commitd21685ec258f803d3badae5eae821383a34815a9 (patch)
tree7ab60a2a5d557a4f345b01a79ca2f877c06d9b92 /sound/soc/soc-cache.c
parent74ab24af4fe165de5af01d0507250dd099f096b0 (diff)
parentea02c63d57d7ec099f66ddb2942b4022e865cd5f (diff)
downloadlinux-d21685ec258f803d3badae5eae821383a34815a9.tar.bz2
Merge branch 'for-2.6.40' into for-2.6.41
Diffstat (limited to 'sound/soc/soc-cache.c')
-rw-r--r--sound/soc/soc-cache.c140
1 files changed, 14 insertions, 126 deletions
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index d1d4059be04e..d8ce34c83d8b 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -20,25 +20,15 @@
#include <trace/events/asoc.h>
-#if defined(CONFIG_SPI_MASTER)
-static int do_spi_write(void *control_data, const void *msg,
- int len)
+#ifdef CONFIG_SPI_MASTER
+static int do_spi_write(void *control, const char *data, int len)
{
- struct spi_device *spi = control_data;
- struct spi_transfer t;
- struct spi_message m;
-
- if (len <= 0)
- return 0;
-
- spi_message_init(&m);
- memset(&t, 0, sizeof t);
-
- t.tx_buf = msg;
- t.len = len;
+ struct spi_device *spi = control;
+ int ret;
- spi_message_add_tail(&t, &m);
- spi_sync(spi, &m);
+ ret = spi_write(spi, data, len);
+ if (ret < 0)
+ return ret;
return len;
}
@@ -101,28 +91,12 @@ static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,
static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
- u8 data[2];
-
- data[0] = (reg << 4) | ((value >> 8) & 0x000f);
- data[1] = value & 0x00ff;
-
- return do_hw_write(codec, reg, value, data, 2);
-}
-
-#if defined(CONFIG_SPI_MASTER)
-static int snd_soc_4_12_spi_write(void *control_data, const char *data,
- int len)
-{
- u8 msg[2];
+ u16 data;
- msg[0] = data[1];
- msg[1] = data[0];
+ data = cpu_to_be16((reg << 12) | (value & 0xffffff));
- return do_spi_write(control_data, msg, len);
+ return do_hw_write(codec, reg, value, &data, 2);
}
-#else
-#define snd_soc_4_12_spi_write NULL
-#endif
static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec,
unsigned int reg)
@@ -140,21 +114,6 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
return do_hw_write(codec, reg, value, &data, 2);
}
-#if defined(CONFIG_SPI_MASTER)
-static int snd_soc_7_9_spi_write(void *control_data, const char *data,
- int len)
-{
- u8 msg[2];
-
- msg[0] = data[0];
- msg[1] = data[1];
-
- return do_spi_write(control_data, msg, len);
-}
-#else
-#define snd_soc_7_9_spi_write NULL
-#endif
-
static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
@@ -173,21 +132,6 @@ static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec,
return do_hw_read(codec, reg);
}
-#if defined(CONFIG_SPI_MASTER)
-static int snd_soc_8_8_spi_write(void *control_data, const char *data,
- int len)
-{
- u8 msg[2];
-
- msg[0] = data[0];
- msg[1] = data[1];
-
- return do_spi_write(control_data, msg, 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)
{
@@ -206,22 +150,6 @@ static unsigned int snd_soc_8_16_read(struct snd_soc_codec *codec,
return do_hw_read(codec, reg);
}
-#if defined(CONFIG_SPI_MASTER)
-static int snd_soc_8_16_spi_write(void *control_data, const char *data,
- int len)
-{
- u8 msg[3];
-
- msg[0] = data[0];
- msg[1] = data[1];
- msg[2] = data[2];
-
- return do_spi_write(control_data, msg, len);
-}
-#else
-#define snd_soc_8_16_spi_write NULL
-#endif
-
#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,
@@ -318,27 +246,10 @@ static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
memcpy(data, &rval, sizeof(rval));
data[2] = value;
- reg &= 0xff;
return do_hw_write(codec, reg, value, data, 3);
}
-#if defined(CONFIG_SPI_MASTER)
-static int snd_soc_16_8_spi_write(void *control_data, const char *data,
- int len)
-{
- u8 msg[3];
-
- msg[0] = data[0];
- msg[1] = data[1];
- msg[2] = data[2];
-
- return do_spi_write(control_data, msg, len);
-}
-#else
-#define snd_soc_16_8_spi_write NULL
-#endif
-
#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)
@@ -373,23 +284,6 @@ static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,
return do_hw_write(codec, reg, value, data, sizeof(data));
}
-#if defined(CONFIG_SPI_MASTER)
-static int snd_soc_16_16_spi_write(void *control_data, const char *data,
- int len)
-{
- u8 msg[4];
-
- msg[0] = data[0];
- msg[1] = data[1];
- msg[2] = data[2];
- msg[3] = data[3];
-
- return do_spi_write(control_data, msg, len);
-}
-#else
-#define snd_soc_16_16_spi_write NULL
-#endif
-
/* 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
@@ -419,7 +313,7 @@ static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec, unsigned int r
#endif
#if defined(CONFIG_SPI_MASTER)
case SND_SOC_SPI:
- ret = do_spi_write(codec->control_data, data, len);
+ ret = spi_write(codec->control_data, data, len);
break;
#endif
default:
@@ -438,43 +332,36 @@ static struct {
int addr_bits;
int data_bits;
int (*write)(struct snd_soc_codec *codec, unsigned int, unsigned int);
- int (*spi_write)(void *, const char *, 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, .read = snd_soc_4_12_read,
- .spi_write = snd_soc_4_12_spi_write,
},
{
.addr_bits = 7, .data_bits = 9,
.write = snd_soc_7_9_write, .read = snd_soc_7_9_read,
- .spi_write = snd_soc_7_9_spi_write,
},
{
.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,
.write = snd_soc_16_8_write, .read = snd_soc_16_8_read,
.i2c_read = snd_soc_16_8_read_i2c,
- .spi_write = snd_soc_16_8_spi_write,
},
{
.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,
},
};
@@ -535,8 +422,9 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
break;
case SND_SOC_SPI:
- if (io_types[i].spi_write)
- codec->hw_write = io_types[i].spi_write;
+#ifdef CONFIG_SPI_MASTER
+ codec->hw_write = do_spi_write;
+#endif
codec->control_data = container_of(codec->dev,
struct spi_device,