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V4L/DVB: gspca - sonixj: Add autogain for sensor gc0307

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Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-François Moine 2010-04-02 07:08:39 -03:00 committed by Mauro Carvalho Chehab
parent 73e4934c80
commit c26b12d064
1 changed files with 22 additions and 8 deletions
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30
drivers/media/video/gspca/sonixj.c
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@ -291,8 +291,7 @@ static const __u32 ctrl_dis[] = {
(1 << VFLIP_IDX) |
(1 << FREQ_IDX),
[SENSOR_GC0307] = (1 << AUTOGAIN_IDX) |
(1 << INFRARED_IDX) |
[SENSOR_GC0307] = (1 << INFRARED_IDX) |
(1 << VFLIP_IDX) |
(1 << FREQ_IDX),
@ -642,12 +641,6 @@ static const u8 gc0307_sensor_param1[][8] = {
/*param3*/
{0xa0, 0x21, 0x01, 0x6e, 0x00, 0x00, 0x00, 0x10},
{0xa0, 0x21, 0x02, 0x88, 0x00, 0x00, 0x00, 0x10},
{0xa0, 0x21, 0x68, 0x22, 0x00, 0x00, 0x00, 0x10},
{0xdd, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0xa0, 0x21, 0x03, 0x07, 0x00, 0x00, 0x00, 0x10},
{0xdd, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0xa0, 0x21, 0x04, 0x91, 0x00, 0x00, 0x00, 0x10},
{}
};
@ -1815,6 +1808,18 @@ static u32 setexposure(struct gspca_dev *gspca_dev,
struct sd *sd = (struct sd *) gspca_dev;
switch (sd->sensor) {
case SENSOR_GC0307: {
int a, b;
/* expo = 0..255 -> a = 19..43 */
a = 19 + expo * 25 / 256;
i2c_w1(gspca_dev, 0x68, a);
a -= 12;
b = a * a * 4; /* heuristic */
i2c_w1(gspca_dev, 0x03, b >> 8);
i2c_w1(gspca_dev, 0x04, b);
break;
}
case SENSOR_HV7131R: {
u8 Expodoit[] =
{ 0xc1, 0x11, 0x25, 0x00, 0x00, 0x00, 0x00, 0x16 };
@ -1925,6 +1930,7 @@ static void setbrightness(struct gspca_dev *gspca_dev)
expo = sd->brightness >> 4;
sd->exposure = setexposure(gspca_dev, expo);
break;
case SENSOR_GC0307:
case SENSOR_MT9V111:
expo = sd->brightness >> 8;
sd->exposure = setexposure(gspca_dev, expo);
@ -2524,6 +2530,14 @@ static void do_autogain(struct gspca_dev *gspca_dev)
if (delta < luma_mean - luma_delta ||
delta > luma_mean + luma_delta) {
switch (sd->sensor) {
case SENSOR_GC0307:
expotimes = sd->exposure;
expotimes += (luma_mean - delta) >> 6;
if (expotimes < 0)
expotimes = 0;
sd->exposure = setexposure(gspca_dev,
(unsigned int) expotimes);
break;
case SENSOR_HV7131R:
expotimes = sd->exposure >> 8;
expotimes += (luma_mean - delta) >> 4;