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V4L/DVB (10342): gspca - stv06xx: Add ctrl caching to the vv6410. 

Signed-off-by: Erik Andren <erik.andren@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Erik Andren 2009-01-07 06:11:50 -03:00 committed by Mauro Carvalho Chehab
parent d5b53f467b
commit 5658ae9007
2 changed files with 43 additions and 25 deletions
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66
drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c
View File

@ -43,6 +43,7 @@ static struct v4l2_pix_format vv6410_mode[] = {
};
static const struct ctrl vv6410_ctrl[] = {
#define HFLIP_IDX 0
{
{
.id = V4L2_CID_HFLIP,
@ -55,7 +56,9 @@ static const struct ctrl vv6410_ctrl[] = {
},
.set = vv6410_set_hflip,
.get = vv6410_get_hflip
}, {
},
#define VFLIP_IDX 1
{
{
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
@ -67,7 +70,9 @@ static const struct ctrl vv6410_ctrl[] = {
},
.set = vv6410_set_vflip,
.get = vv6410_get_vflip
}, {
},
#define GAIN_IDX 2
{
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
@ -85,23 +90,31 @@ static const struct ctrl vv6410_ctrl[] = {
static int vv6410_probe(struct sd *sd)
{
u16 data;
int err;
int err, i;
s32 *sensor_settings;
err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
if (err < 0)
return -ENODEV;
if (data == 0x19) {
info("vv6410 sensor detected");
sensor_settings = kmalloc(ARRAY_SIZE(vv6410_ctrl) * sizeof(s32),
GFP_KERNEL);
if (!sensor_settings)
return -ENOMEM;
sd->gspca_dev.cam.cam_mode = vv6410_mode;
sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
sd->desc.ctrls = vv6410_ctrl;
sd->desc.nctrls = ARRAY_SIZE(vv6410_ctrl);
for (i = 0; i < sd->desc.nctrls; i++)
sensor_settings[i] = vv6410_ctrl[i].qctrl.default_value;
sd->sensor_priv = sensor_settings;
return 0;
}
return -ENODEV;
}
@ -133,6 +146,12 @@ static int vv6410_init(struct sd *sd)
return (err < 0) ? err : 0;
}
static void vv6410_disconnect(struct sd *sd)
{
sd->sensor = NULL;
kfree(sd->sensor_priv);
}
static int vv6410_start(struct sd *sd)
{
int err;
@ -209,17 +228,13 @@ static int vv6410_dump(struct sd *sd)
static int vv6410_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
*val = (i2c_data & VV6410_HFLIP) ? 1 : 0;
*val = sensor_settings[HFLIP_IDX];
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
return (err < 0) ? err : 0;
return 0;
}
static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
@ -227,6 +242,9 @@ static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
sensor_settings[HFLIP_IDX] = val;
err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
if (err < 0)
return err;
@ -244,17 +262,13 @@ static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
static int vv6410_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
*val = (i2c_data & VV6410_VFLIP) ? 1 : 0;
*val = sensor_settings[VFLIP_IDX];
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
return (err < 0) ? err : 0;
return 0;
}
static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
@ -262,6 +276,9 @@ static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
sensor_settings[VFLIP_IDX] = val;
err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
if (err < 0)
return err;
@ -279,24 +296,23 @@ static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
static int vv6410_get_analog_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
err = stv06xx_read_sensor(sd, VV6410_ANALOGGAIN, &i2c_data);
*val = i2c_data & 0xf;
*val = sensor_settings[GAIN_IDX];
PDEBUG(D_V4L2, "Read analog gain %d", *val);
return (err < 0) ? err : 0;
return 0;
}
static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
sensor_settings[GAIN_IDX] = val;
PDEBUG(D_V4L2, "Set analog gain to %d", val);
err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));

2
drivers/media/video/gspca/stv06xx/stv06xx_vv6410.h
View File

@ -178,6 +178,7 @@ static int vv6410_start(struct sd *sd);
static int vv6410_init(struct sd *sd);
static int vv6410_stop(struct sd *sd);
static int vv6410_dump(struct sd *sd);
static void vv6410_disconnect(struct sd *sd);
/* V4L2 controls supported by the driver */
static int vv6410_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
@ -197,6 +198,7 @@ const struct stv06xx_sensor stv06xx_sensor_vv6410 = {
.start = vv6410_start,
.stop = vv6410_stop,
.dump = vv6410_dump,
.disconnect = vv6410_disconnect,
};
/* If NULL, only single value to write, stored in len */