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V4L/DVB (9963): tlv320aic23b: convert to v4l2_subdev. 

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2008-12-18 12:43:56 -03:00 committed by Mauro Carvalho Chehab
parent 2a5b828d75
commit 6869ffe80e
1 changed files with 87 additions and 54 deletions
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141
drivers/media/video/tlv320aic23b.c
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@ -30,7 +30,7 @@
#include <linux/i2c.h> #include <linux/i2c.h>
#include <linux/i2c-id.h> #include <linux/i2c-id.h>
#include <linux/videodev2.h> #include <linux/videodev2.h>
#include <media/v4l2-common.h> #include <media/v4l2-device.h>
#include <media/v4l2-i2c-drv-legacy.h> #include <media/v4l2-i2c-drv-legacy.h>
MODULE_DESCRIPTION("tlv320aic23b driver"); MODULE_DESCRIPTION("tlv320aic23b driver");
@ -44,15 +44,22 @@ I2C_CLIENT_INSMOD;
/* ----------------------------------------------------------------------- */ /* ----------------------------------------------------------------------- */
struct tlv320aic23b_state { struct tlv320aic23b_state {
struct v4l2_subdev sd;
u8 muted; u8 muted;
}; };
static int tlv320aic23b_write(struct i2c_client *client, int reg, u16 val) static inline struct tlv320aic23b_state *to_state(struct v4l2_subdev *sd)
{ {
return container_of(sd, struct tlv320aic23b_state, sd);
}
static int tlv320aic23b_write(struct v4l2_subdev *sd, int reg, u16 val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int i; int i;
if ((reg < 0 || reg > 9) && (reg != 15)) { if ((reg < 0 || reg > 9) && (reg != 15)) {
v4l_err(client, "Invalid register R%d\n", reg); v4l2_err(sd, "Invalid register R%d\n", reg);
return -1; return -1;
} }
@ -60,61 +67,82 @@ static int tlv320aic23b_write(struct i2c_client *client, int reg, u16 val)
if (i2c_smbus_write_byte_data(client, if (i2c_smbus_write_byte_data(client,
(reg << 1) | (val >> 8), val & 0xff) == 0) (reg << 1) | (val >> 8), val & 0xff) == 0)
return 0; return 0;
v4l_err(client, "I2C: cannot write %03x to register R%d\n", val, reg); v4l2_err(sd, "I2C: cannot write %03x to register R%d\n", val, reg);
return -1; return -1;
} }
static int tlv320aic23b_command(struct i2c_client *client, static int tlv320aic23b_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
unsigned int cmd, void *arg)
{ {
struct tlv320aic23b_state *state = i2c_get_clientdata(client); switch (freq) {
struct v4l2_control *ctrl = arg; case 32000: /* set sample rate to 32 kHz */
u32 *freq = arg; tlv320aic23b_write(sd, 8, 0x018);
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;
}
break; break;
case 44100: /* set sample rate to 44.1 kHz */
case VIDIOC_G_CTRL: tlv320aic23b_write(sd, 8, 0x022);
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
ctrl->value = state->muted;
break; break;
case 48000: /* set sample rate to 48 kHz */
case VIDIOC_S_CTRL: tlv320aic23b_write(sd, 8, 0x000);
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
state->muted = ctrl->value;
tlv320aic23b_write(client, 0, 0x180); /* mute both channels */
/* set gain on both channels to +3.0 dB */
if (!state->muted)
tlv320aic23b_write(client, 0, 0x119);
break; break;
case VIDIOC_LOG_STATUS:
v4l_info(client, "Input: %s\n",
state->muted ? "muted" : "active");
break;
default: default:
return -EINVAL; return -EINVAL;
} }
return 0; return 0;
} }
static int tlv320aic23b_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct tlv320aic23b_state *state = to_state(sd);
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
ctrl->value = state->muted;
return 0;
}
static int tlv320aic23b_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct tlv320aic23b_state *state = to_state(sd);
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
state->muted = ctrl->value;
tlv320aic23b_write(sd, 0, 0x180); /* mute both channels */
/* set gain on both channels to +3.0 dB */
if (!state->muted)
tlv320aic23b_write(sd, 0, 0x119);
return 0;
}
static int tlv320aic23b_log_status(struct v4l2_subdev *sd)
{
struct tlv320aic23b_state *state = to_state(sd);
v4l2_info(sd, "Input: %s\n", state->muted ? "muted" : "active");
return 0;
}
static int tlv320aic23b_command(struct i2c_client *client, unsigned cmd, void *arg)
{
return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_subdev_core_ops tlv320aic23b_core_ops = {
.log_status = tlv320aic23b_log_status,
.g_ctrl = tlv320aic23b_g_ctrl,
.s_ctrl = tlv320aic23b_s_ctrl,
};
static const struct v4l2_subdev_audio_ops tlv320aic23b_audio_ops = {
.s_clock_freq = tlv320aic23b_s_clock_freq,
};
static const struct v4l2_subdev_ops tlv320aic23b_ops = {
.core = &tlv320aic23b_core_ops,
.audio = &tlv320aic23b_audio_ops,
};
/* ----------------------------------------------------------------------- */ /* ----------------------------------------------------------------------- */
/* i2c implementation */ /* i2c implementation */
@ -128,6 +156,7 @@ static int tlv320aic23b_probe(struct i2c_client *client,
const struct i2c_device_id *id) const struct i2c_device_id *id)
{ {
struct tlv320aic23b_state *state; struct tlv320aic23b_state *state;
struct v4l2_subdev *sd;
/* Check if the adapter supports the needed features */ /* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@ -136,32 +165,36 @@ static int tlv320aic23b_probe(struct i2c_client *client,
v4l_info(client, "chip found @ 0x%x (%s)\n", v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name); client->addr << 1, client->adapter->name);
state = kmalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL); state = kzalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL);
if (state == NULL) if (state == NULL)
return -ENOMEM; return -ENOMEM;
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &tlv320aic23b_ops);
state->muted = 0; state->muted = 0;
i2c_set_clientdata(client, state);
/* Initialize tlv320aic23b */ /* Initialize tlv320aic23b */
/* RESET */ /* RESET */
tlv320aic23b_write(client, 15, 0x000); tlv320aic23b_write(sd, 15, 0x000);
/* turn off DAC & mic input */ /* turn off DAC & mic input */
tlv320aic23b_write(client, 6, 0x00A); tlv320aic23b_write(sd, 6, 0x00A);
/* left-justified, 24-bit, master mode */ /* left-justified, 24-bit, master mode */
tlv320aic23b_write(client, 7, 0x049); tlv320aic23b_write(sd, 7, 0x049);
/* set gain on both channels to +3.0 dB */ /* set gain on both channels to +3.0 dB */
tlv320aic23b_write(client, 0, 0x119); tlv320aic23b_write(sd, 0, 0x119);
/* set sample rate to 48 kHz */ /* set sample rate to 48 kHz */
tlv320aic23b_write(client, 8, 0x000); tlv320aic23b_write(sd, 8, 0x000);
/* activate digital interface */ /* activate digital interface */
tlv320aic23b_write(client, 9, 0x001); tlv320aic23b_write(sd, 9, 0x001);
return 0; return 0;
} }
static int tlv320aic23b_remove(struct i2c_client *client) static int tlv320aic23b_remove(struct i2c_client *client)
{ {
kfree(i2c_get_clientdata(client)); struct v4l2_subdev *sd = i2c_get_clientdata(client);
v4l2_device_unregister_subdev(sd);
kfree(to_state(sd));
return 0; return 0;
} }