V4L/DVB (9824): m52790: 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
Mauro Carvalho Chehab
Родитель
9357b31c6c
Коммит
5d302f2e2c
|
|
@ -28,7 +28,7 @@
|
|||
#include <linux/i2c-id.h>
|
||||
#include <linux/videodev2.h>
|
||||
#include <media/m52790.h>
|
||||
#include <media/v4l2-common.h>
|
||||
#include <media/v4l2-device.h>
|
||||
#include <media/v4l2-chip-ident.h>
|
||||
#include <media/v4l2-i2c-drv.h>
|
||||
|
||||
|
|
@ -38,90 +38,131 @@ MODULE_LICENSE("GPL");
|
|||
|
||||
|
||||
struct m52790_state {
|
||||
struct v4l2_subdev sd;
|
||||
u16 input;
|
||||
u16 output;
|
||||
};
|
||||
|
||||
static inline struct m52790_state *to_state(struct v4l2_subdev *sd)
|
||||
{
|
||||
return container_of(sd, struct m52790_state, sd);
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static int m52790_write(struct i2c_client *client)
|
||||
static int m52790_write(struct v4l2_subdev *sd)
|
||||
{
|
||||
struct m52790_state *state = i2c_get_clientdata(client);
|
||||
struct m52790_state *state = to_state(sd);
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
|
||||
u8 sw1 = (state->input | state->output) & 0xff;
|
||||
u8 sw2 = (state->input | state->output) >> 8;
|
||||
|
||||
return i2c_smbus_write_byte_data(client, sw1, sw2);
|
||||
}
|
||||
|
||||
static int m52790_command(struct i2c_client *client, unsigned int cmd,
|
||||
void *arg)
|
||||
/* Note: audio and video are linked and cannot be switched separately.
|
||||
So audio and video routing commands are identical for this chip.
|
||||
In theory the video amplifier and audio modes could be handled
|
||||
separately for the output, but that seems to be overkill right now.
|
||||
The same holds for implementing an audio mute control, this is now
|
||||
part of the audio output routing. The normal case is that another
|
||||
chip takes care of the actual muting so making it part of the
|
||||
output routing seems to be the right thing to do for now. */
|
||||
static int m52790_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
|
||||
{
|
||||
struct m52790_state *state = i2c_get_clientdata(client);
|
||||
struct v4l2_routing *route = arg;
|
||||
struct m52790_state *state = to_state(sd);
|
||||
|
||||
/* Note: audio and video are linked and cannot be switched separately.
|
||||
So audio and video routing commands are identical for this chip.
|
||||
In theory the video amplifier and audio modes could be handled
|
||||
separately for the output, but that seems to be overkill right now.
|
||||
The same holds for implementing an audio mute control, this is now
|
||||
part of the audio output routing. The normal case is that another
|
||||
chip takes care of the actual muting so making it part of the
|
||||
output routing seems to be the right thing to do for now. */
|
||||
switch (cmd) {
|
||||
case VIDIOC_INT_G_AUDIO_ROUTING:
|
||||
case VIDIOC_INT_G_VIDEO_ROUTING:
|
||||
route->input = state->input;
|
||||
route->output = state->output;
|
||||
break;
|
||||
|
||||
case VIDIOC_INT_S_AUDIO_ROUTING:
|
||||
case VIDIOC_INT_S_VIDEO_ROUTING:
|
||||
state->input = route->input;
|
||||
state->output = route->output;
|
||||
m52790_write(client);
|
||||
break;
|
||||
|
||||
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
||||
case VIDIOC_DBG_G_REGISTER:
|
||||
case VIDIOC_DBG_S_REGISTER:
|
||||
{
|
||||
struct v4l2_register *reg = arg;
|
||||
|
||||
if (!v4l2_chip_match_i2c_client(client,
|
||||
reg->match_type, reg->match_chip))
|
||||
return -EINVAL;
|
||||
if (!capable(CAP_SYS_ADMIN))
|
||||
return -EPERM;
|
||||
if (reg->reg != 0)
|
||||
return -EINVAL;
|
||||
if (cmd == VIDIOC_DBG_G_REGISTER)
|
||||
reg->val = state->input | state->output;
|
||||
else {
|
||||
state->input = reg->val & 0x0303;
|
||||
state->output = reg->val & ~0x0303;
|
||||
m52790_write(client);
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
case VIDIOC_G_CHIP_IDENT:
|
||||
return v4l2_chip_ident_i2c_client(client, arg,
|
||||
V4L2_IDENT_M52790, 0);
|
||||
|
||||
case VIDIOC_LOG_STATUS:
|
||||
v4l_info(client, "Switch 1: %02x\n",
|
||||
(state->input | state->output) & 0xff);
|
||||
v4l_info(client, "Switch 2: %02x\n",
|
||||
(state->input | state->output) >> 8);
|
||||
break;
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
state->input = route->input;
|
||||
state->output = route->output;
|
||||
m52790_write(sd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
||||
static int m52790_g_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
|
||||
{
|
||||
struct m52790_state *state = to_state(sd);
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
|
||||
if (!v4l2_chip_match_i2c_client(client,
|
||||
reg->match_type, reg->match_chip))
|
||||
return -EINVAL;
|
||||
if (!capable(CAP_SYS_ADMIN))
|
||||
return -EPERM;
|
||||
if (reg->reg != 0)
|
||||
return -EINVAL;
|
||||
reg->val = state->input | state->output;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int m52790_s_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
|
||||
{
|
||||
struct m52790_state *state = to_state(sd);
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
|
||||
if (!v4l2_chip_match_i2c_client(client,
|
||||
reg->match_type, reg->match_chip))
|
||||
return -EINVAL;
|
||||
if (!capable(CAP_SYS_ADMIN))
|
||||
return -EPERM;
|
||||
if (reg->reg != 0)
|
||||
return -EINVAL;
|
||||
state->input = reg->val & 0x0303;
|
||||
state->output = reg->val & ~0x0303;
|
||||
m52790_write(sd);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int m52790_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_M52790, 0);
|
||||
}
|
||||
|
||||
static int m52790_log_status(struct v4l2_subdev *sd)
|
||||
{
|
||||
struct m52790_state *state = to_state(sd);
|
||||
|
||||
v4l2_info(sd, "Switch 1: %02x\n",
|
||||
(state->input | state->output) & 0xff);
|
||||
v4l2_info(sd, "Switch 2: %02x\n",
|
||||
(state->input | state->output) >> 8);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int m52790_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 m52790_core_ops = {
|
||||
.log_status = m52790_log_status,
|
||||
.g_chip_ident = m52790_g_chip_ident,
|
||||
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
||||
.g_register = m52790_g_register,
|
||||
.s_register = m52790_s_register,
|
||||
#endif
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_audio_ops m52790_audio_ops = {
|
||||
.s_routing = m52790_s_routing,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_video_ops m52790_video_ops = {
|
||||
.s_routing = m52790_s_routing,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_ops m52790_ops = {
|
||||
.core = &m52790_core_ops,
|
||||
.audio = &m52790_audio_ops,
|
||||
.video = &m52790_video_ops,
|
||||
};
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
/* i2c implementation */
|
||||
|
|
@ -130,6 +171,7 @@ static int m52790_probe(struct i2c_client *client,
|
|||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct m52790_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))
|
||||
|
|
@ -142,16 +184,20 @@ static int m52790_probe(struct i2c_client *client,
|
|||
if (state == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
sd = &state->sd;
|
||||
v4l2_i2c_subdev_init(sd, client, &m52790_ops);
|
||||
state->input = M52790_IN_TUNER;
|
||||
state->output = M52790_OUT_STEREO;
|
||||
i2c_set_clientdata(client, state);
|
||||
m52790_write(client);
|
||||
m52790_write(sd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int m52790_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;
|
||||
}
|
||||
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче