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yaml
---
r: 76535
b: refs/heads/master
c: 574dec6
h: refs/heads/master
i:
  76533: 663cb0c
  76531: fafaadc
  76527: 3bce82d
v: v3
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Hans Verkuil authored and Mauro Carvalho Chehab committed Jan 25, 2008
1 parent 8f1bd24 commit 3bb969a
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Showing 2 changed files with 35 additions and 30 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 4c05de9c971b70a61d81cd2f1c78db85e2632d1c
refs/heads/master: 574dec611f1578b52dd37df5c95f855a28652e42
63 changes: 34 additions & 29 deletions trunk/drivers/media/video/tlv320aic23b.c
Original file line number Diff line number Diff line change
Expand Up @@ -57,37 +57,35 @@ static int tlv320aic23b_write(struct i2c_client *client, int reg, u16 val)
return -1;
}

for (i = 0; i < 3; i++) {
if (i2c_smbus_write_byte_data(client, (reg << 1) |
(val >> 8), val & 0xff) == 0) {
for (i = 0; i < 3; i++)
if (i2c_smbus_write_byte_data(client,
(reg << 1) | (val >> 8), val & 0xff) == 0)
return 0;
}
}
v4l_err(client, "I2C: cannot write %03x to register R%d\n", val, reg);
return -1;
}

static int tlv320aic23b_command(struct i2c_client *client, unsigned int cmd,
void *arg)
static int tlv320aic23b_command(struct i2c_client *client,
unsigned int cmd, void *arg)
{
struct tlv320aic23b_state *state = i2c_get_clientdata(client);
struct v4l2_control *ctrl = arg;
u32* freq = arg;
u32 *freq = arg;

switch (cmd) {
case VIDIOC_INT_AUDIO_CLOCK_FREQ:
switch (*freq) {
case 32000: /* set sample rate to 32 kHz */
tlv320aic23b_write(client, 8, 0x018);
break;
case 44100: /* set sample rate to 44.1 kHz */
tlv320aic23b_write(client, 8, 0x022);
break;
case 48000: /* set sample rate to 48 kHz */
tlv320aic23b_write(client, 8, 0x000);
break;
default:
return -EINVAL;
case 32000: /* set sample rate to 32 kHz */
tlv320aic23b_write(client, 8, 0x018);
break;
case 44100: /* set sample rate to 44.1 kHz */
tlv320aic23b_write(client, 8, 0x022);
break;
case 48000: /* set sample rate to 48 kHz */
tlv320aic23b_write(client, 8, 0x000);
break;
default:
return -EINVAL;
}
break;

Expand Down Expand Up @@ -135,22 +133,29 @@ static int tlv320aic23b_probe(struct i2c_client *client)
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;

v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);

state = kmalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL);
if (state == NULL) {
if (state == NULL)
return -ENOMEM;
}
state->muted = 0;
i2c_set_clientdata(client, state);

/* initialize tlv320aic23b */
tlv320aic23b_write(client, 15, 0x000); /* RESET */
tlv320aic23b_write(client, 6, 0x00A); /* turn off DAC & mic input */
tlv320aic23b_write(client, 7, 0x049); /* left-justified, 24-bit, master mode */
tlv320aic23b_write(client, 0, 0x119); /* set gain on both channels to +3.0 dB */
tlv320aic23b_write(client, 8, 0x000); /* set sample rate to 48 kHz */
tlv320aic23b_write(client, 9, 0x001); /* activate digital interface */
/* Initialize tlv320aic23b */

/* RESET */
tlv320aic23b_write(client, 15, 0x000);
/* turn off DAC & mic input */
tlv320aic23b_write(client, 6, 0x00A);
/* left-justified, 24-bit, master mode */
tlv320aic23b_write(client, 7, 0x049);
/* set gain on both channels to +3.0 dB */
tlv320aic23b_write(client, 0, 0x119);
/* set sample rate to 48 kHz */
tlv320aic23b_write(client, 8, 0x000);
/* activate digital interface */
tlv320aic23b_write(client, 9, 0x001);
return 0;
}

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