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V4L/DVB: gspca_sonixb: pas106: fixup bright ctrl and add gain and exposure ctrls

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Fixup brightness ctrl and add gain and exposure ctrls for PAS106B sensors,
this allows enabling autogain (done), and makes the cam usable in low light
conditions.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2010-02-10 18:57:40 -03:00 committed by Mauro Carvalho Chehab
parent 606f8428ca
commit 421763e776
1 changed files with 80 additions and 21 deletions
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101
drivers/media/video/gspca/sonixb.c
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@ -188,8 +188,8 @@ static const struct ctrl sd_ctrls[] = {
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Exposure",
#define EXPOSURE_DEF 66 /* 33 ms / 30 fps (except on PAS202) */
#define EXPOSURE_KNEE 200 /* 100 ms / 10 fps (except on PAS202) */
#define EXPOSURE_DEF 66 /* 33 ms / 30 fps (except on PASXXX) */
#define EXPOSURE_KNEE 200 /* 100 ms / 10 fps (except on PASXXX) */
.minimum = 0,
.maximum = 1023,
.step = 1,
@ -408,6 +408,30 @@ static const __u8 initPas106[] = {
0x18, 0x10, 0x02, 0x02, 0x09, 0x07
};
/* compression 0x86 mckinit1 0x2b */
/* "Known" PAS106B registers:
0x02 clock divider
0x03 Variable framerate bits 4-11
0x04 Var framerate bits 0-3, one must leave the 4 msb's at 0 !!
The variable framerate control must never be set lower then 300,
which sets the framerate at 90 / reg02, otherwise vsync is lost.
0x05 Shutter Time Line Offset, this can be used as an exposure control:
0 = use full frame time, 255 = no exposure at all
Note this may never be larger then "var-framerate control" / 2 - 2.
When var-framerate control is < 514, no exposure is reached at the max
allowed value for the framerate control value, rather then at 255.
0x06 Shutter Time Pixel Offset, like reg05 this influences exposure, but
only a very little bit, leave at 0xcd
0x07 offset sign bit (bit0 1 > negative offset)
0x08 offset
0x09 Blue Gain
0x0a Green1 Gain
0x0b Green2 Gain
0x0c Red Gain
0x0e Global gain
0x13 Write 1 to commit settings to sensor
*/
static const __u8 pas106_sensor_init[][8] = {
/* Pixel Clock Divider 6 */
{ 0xa1, 0x40, 0x02, 0x04, 0x00, 0x00, 0x00, 0x14 },
@ -532,7 +556,7 @@ SENS(initHv7131, NULL, hv7131_sensor_init, NULL, NULL, 0, NO_EXPO|NO_FREQ, 0),
SENS(initOv6650, NULL, ov6650_sensor_init, NULL, NULL, F_GAIN|F_SIF, 0, 0x60),
SENS(initOv7630, initOv7630_3, ov7630_sensor_init, NULL, ov7630_sensor_init_3,
F_GAIN, 0, 0x21),
SENS(initPas106, NULL, pas106_sensor_init, NULL, NULL, F_SIF, NO_EXPO|NO_FREQ,
SENS(initPas106, NULL, pas106_sensor_init, NULL, NULL, F_GAIN|F_SIF, NO_FREQ,
0),
SENS(initPas202, initPas202, pas202_sensor_init, NULL, NULL, F_GAIN,
NO_FREQ, 0),
@ -628,26 +652,19 @@ static void setbrightness(struct gspca_dev *gspca_dev)
goto err;
break;
}
case SENSOR_PAS106: {
__u8 i2c1[] =
{0xa1, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14};
i2c1[3] = sd->brightness >> 3;
i2c1[2] = 0x0e;
if (i2c_w(gspca_dev, i2c1) < 0)
goto err;
i2c1[3] = 0x01;
i2c1[2] = 0x13;
if (i2c_w(gspca_dev, i2c1) < 0)
goto err;
break;
}
case SENSOR_PAS106:
case SENSOR_PAS202: {
__u8 i2cpbright[] =
{0xb0, 0x40, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x16};
const __u8 i2cpdoit[] =
__u8 i2cpdoit[] =
{0xa0, 0x40, 0x11, 0x01, 0x00, 0x00, 0x00, 0x16};
/* PAS106 uses reg 7 and 8 instead of b and c */
if (sd->sensor == SENSOR_PAS106) {
i2cpbright[2] = 7;
i2cpdoit[2] = 0x13;
}
if (sd->brightness < 127) {
/* change reg 0x0b, signreg */
i2cpbright[3] = 0x01;
@ -709,18 +726,28 @@ static void setsensorgain(struct gspca_dev *gspca_dev)
goto err;
break;
}
case SENSOR_PAS106:
case SENSOR_PAS202: {
__u8 i2cpgain[] =
{0xa0, 0x40, 0x10, 0x00, 0x00, 0x00, 0x63, 0x15};
{0xa0, 0x40, 0x10, 0x00, 0x00, 0x00, 0x00, 0x15};
__u8 i2cpcolorgain[] =
{0xc0, 0x40, 0x07, 0x00, 0x00, 0x00, 0x00, 0x15};
const __u8 i2cpdoit[] =
{0xa0, 0x40, 0x11, 0x01, 0x00, 0x00, 0x63, 0x16};
__u8 i2cpdoit[] =
{0xa0, 0x40, 0x11, 0x01, 0x00, 0x00, 0x00, 0x16};
/* PAS106 uses different regs (and has split green gains) */
if (sd->sensor == SENSOR_PAS106) {
i2cpgain[2] = 0x0e;
i2cpcolorgain[0] = 0xd0;
i2cpcolorgain[2] = 0x09;
i2cpdoit[2] = 0x13;
}
i2cpgain[3] = sd->gain >> 3;
i2cpcolorgain[3] = sd->gain >> 4;
i2cpcolorgain[4] = sd->gain >> 4;
i2cpcolorgain[5] = sd->gain >> 4;
i2cpcolorgain[6] = sd->gain >> 4;
if (i2c_w(gspca_dev, i2cpgain) < 0)
goto err;
@ -883,6 +910,38 @@ static void setexposure(struct gspca_dev *gspca_dev)
goto err;
break;
}
case SENSOR_PAS106: {
__u8 i2cpframerate[] =
{0xb1, 0x40, 0x03, 0x00, 0x00, 0x00, 0x00, 0x14};
__u8 i2cpexpo[] =
{0xa1, 0x40, 0x05, 0x00, 0x00, 0x00, 0x00, 0x14};
const __u8 i2cpdoit[] =
{0xa1, 0x40, 0x13, 0x01, 0x00, 0x00, 0x00, 0x14};
int framerate_ctrl;
/* For values below 150 use partial frame exposure, above
that use framerate ctrl */
if (sd->exposure < 150) {
i2cpexpo[3] = 150 - sd->exposure;
framerate_ctrl = 300;
} else {
/* The PAS106's exposure control goes from 0 - 4095,
but anything below 300 causes vsync issues, so scale
our 150-1023 to 300-4095 */
framerate_ctrl = (sd->exposure - 150) * 1000 / 230 +
300;
}
i2cpframerate[3] = framerate_ctrl >> 4;
i2cpframerate[4] = framerate_ctrl & 0x0f;
if (i2c_w(gspca_dev, i2cpframerate) < 0)
goto err;
if (i2c_w(gspca_dev, i2cpexpo) < 0)
goto err;
if (i2c_w(gspca_dev, i2cpdoit) < 0)
goto err;
break;
}
}
return;
err: