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V4L/DVB (9832): vp27smpx: convert to v4l2_subdev.

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2008-11-29 13:01:28 -03:00 committed by Mauro Carvalho Chehab
parent cc7ca3ea06
commit d9460f067e
1 changed files with 92 additions and 46 deletions
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138
drivers/media/video/vp27smpx.c
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@ -28,7 +28,7 @@
#include <linux/i2c.h>
#include <linux/i2c-id.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-i2c-drv.h>
@ -40,13 +40,20 @@ MODULE_LICENSE("GPL");
/* ----------------------------------------------------------------------- */
struct vp27smpx_state {
struct v4l2_subdev sd;
int radio;
u32 audmode;
};
static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode)
static inline struct vp27smpx_state *to_state(struct v4l2_subdev *sd)
{
struct vp27smpx_state *state = i2c_get_clientdata(client);
return container_of(sd, struct vp27smpx_state, sd);
}
static void vp27smpx_set_audmode(struct v4l2_subdev *sd, u32 audmode)
{
struct vp27smpx_state *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 data[3] = { 0x00, 0x00, 0x04 };
switch (audmode) {
@ -63,55 +70,89 @@ static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode)
}
if (i2c_master_send(client, data, sizeof(data)) != sizeof(data))
v4l_err(client, "%s: I/O error setting audmode\n",
client->name);
v4l2_err(sd, "I/O error setting audmode\n");
else
state->audmode = audmode;
}
static int vp27smpx_command(struct i2c_client *client, unsigned cmd, void *arg)
static int vp27smpx_s_radio(struct v4l2_subdev *sd)
{
struct vp27smpx_state *state = i2c_get_clientdata(client);
struct v4l2_tuner *vt = arg;
struct vp27smpx_state *state = to_state(sd);
switch (cmd) {
case AUDC_SET_RADIO:
state->radio = 1;
break;
case VIDIOC_S_STD:
state->radio = 0;
break;
case VIDIOC_S_TUNER:
if (!state->radio)
vp27smpx_set_audmode(client, vt->audmode);
break;
case VIDIOC_G_TUNER:
if (state->radio)
break;
vt->audmode = state->audmode;
vt->capability = V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
vt->rxsubchans = V4L2_TUNER_SUB_MONO;
break;
case VIDIOC_G_CHIP_IDENT:
return v4l2_chip_ident_i2c_client(client, arg,
V4L2_IDENT_VP27SMPX, 0);
case VIDIOC_LOG_STATUS:
v4l_info(client, "Audio Mode: %u%s\n", state->audmode,
state->radio ? " (Radio)" : "");
break;
default:
return -EINVAL;
}
state->radio = 1;
return 0;
}
static int vp27smpx_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
{
struct vp27smpx_state *state = to_state(sd);
state->radio = 0;
return 0;
}
static int vp27smpx_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
struct vp27smpx_state *state = to_state(sd);
if (!state->radio)
vp27smpx_set_audmode(sd, vt->audmode);
return 0;
}
static int vp27smpx_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
struct vp27smpx_state *state = to_state(sd);
if (state->radio)
return 0;
vt->audmode = state->audmode;
vt->capability = V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
vt->rxsubchans = V4L2_TUNER_SUB_MONO;
return 0;
}
static int vp27smpx_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_VP27SMPX, 0);
}
static int vp27smpx_log_status(struct v4l2_subdev *sd)
{
struct vp27smpx_state *state = to_state(sd);
v4l2_info(sd, "Audio Mode: %u%s\n", state->audmode,
state->radio ? " (Radio)" : "");
return 0;
}
static int vp27smpx_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 vp27smpx_core_ops = {
.log_status = vp27smpx_log_status,
.g_chip_ident = vp27smpx_g_chip_ident,
};
static const struct v4l2_subdev_tuner_ops vp27smpx_tuner_ops = {
.s_radio = vp27smpx_s_radio,
.s_std = vp27smpx_s_std,
.s_tuner = vp27smpx_s_tuner,
.g_tuner = vp27smpx_g_tuner,
};
static const struct v4l2_subdev_ops vp27smpx_ops = {
.core = &vp27smpx_core_ops,
.tuner = &vp27smpx_tuner_ops,
};
/* ----------------------------------------------------------------------- */
/* i2c implementation */
@ -125,6 +166,7 @@ static int vp27smpx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct vp27smpx_state *state;
struct v4l2_subdev *sd;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@ -136,17 +178,21 @@ static int vp27smpx_probe(struct i2c_client *client,
state = kzalloc(sizeof(struct vp27smpx_state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &vp27smpx_ops);
state->audmode = V4L2_TUNER_MODE_STEREO;
i2c_set_clientdata(client, state);
/* initialize vp27smpx */
vp27smpx_set_audmode(client, state->audmode);
vp27smpx_set_audmode(sd, state->audmode);
return 0;
}
static int vp27smpx_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;
}