diff options
Diffstat (limited to 'drivers/media/video/gspca/pac7302.c')
| -rw-r--r-- | drivers/media/video/gspca/pac7302.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/pac7302.c b/drivers/media/video/gspca/pac7302.c index ec2930871d1..e7a4ced86e9 100644 --- a/drivers/media/video/gspca/pac7302.c +++ b/drivers/media/video/gspca/pac7302.c @@ -49,6 +49,20 @@ -/0x27 Seems to toggle various gains on / off, Setting bit 7 seems to completely disable the analog amplification block. Set to 0x68 for max gain, 0x14 for minimal gain. + + The registers are accessed in the following functions: + + Page | Register | Function + -----+------------+--------------------------------------------------- + 0 | 0x0f..0x20 | setcolors() + 0 | 0xa2..0xab | setbrightcont() + 0 | 0xc5 | setredbalance() + 0 | 0xc7 | setbluebalance() + 0 | 0xdc | setbrightcont(), setcolors() + 3 | 0x02 | setexposure() + 3 | 0x10 | setgain() + 3 | 0x11 | setcolors(), setgain(), setexposure(), sethvflip() + 3 | 0x21 | sethvflip() */ #define MODULE_NAME "pac7302" @@ -66,6 +80,8 @@ struct sd { unsigned char brightness; unsigned char contrast; unsigned char colors; + unsigned char red_balance; + unsigned char blue_balance; unsigned char gain; unsigned char exposure; unsigned char autogain; @@ -85,6 +101,10 @@ static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val); static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val); static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setredbalance(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getredbalance(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setbluebalance(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getbluebalance(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val); static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val); static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val); @@ -145,6 +165,34 @@ static struct ctrl sd_ctrls[] = { .set = sd_setcolors, .get = sd_getcolors, }, + { + { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Red", + .minimum = 0, + .maximum = 3, + .step = 1, +#define REDBALANCE_DEF 1 + .default_value = REDBALANCE_DEF, + }, + .set = sd_setredbalance, + .get = sd_getredbalance, + }, + { + { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Blue", + .minimum = 0, + .maximum = 3, + .step = 1, +#define BLUEBALANCE_DEF 1 + .default_value = BLUEBALANCE_DEF, + }, + .set = sd_setbluebalance, + .get = sd_getbluebalance, + }, /* All controls below are for both the 7302 and the 7311 */ { { @@ -477,6 +525,8 @@ static int sd_config(struct gspca_dev *gspca_dev, sd->brightness = BRIGHTNESS_DEF; sd->contrast = CONTRAST_DEF; sd->colors = COLOR_DEF; + sd->red_balance = REDBALANCE_DEF; + sd->blue_balance = BLUEBALANCE_DEF; sd->gain = GAIN_DEF; sd->exposure = EXPOSURE_DEF; sd->autogain = AUTOGAIN_DEF; @@ -545,6 +595,36 @@ static int setcolors(struct gspca_dev *gspca_dev) return ret; } +static int setredbalance(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret; + + ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ + if (0 <= ret) + ret = reg_w(gspca_dev, 0xc5, sd->red_balance); + + if (0 <= ret) + ret = reg_w(gspca_dev, 0xdc, 0x01); + PDEBUG(D_CONF|D_STREAM, "red_balance: %i", sd->red_balance); + return ret; +} + +static int setbluebalance(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret; + + ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ + if (0 <= ret) + ret = reg_w(gspca_dev, 0xc7, sd->blue_balance); + + if (0 <= ret) + ret = reg_w(gspca_dev, 0xdc, 0x01); + PDEBUG(D_CONF|D_STREAM, "blue_balance: %i", sd->blue_balance); + return ret; +} + static int setgain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -626,6 +706,10 @@ static int sd_start(struct gspca_dev *gspca_dev) if (0 <= ret) ret = setcolors(gspca_dev); if (0 <= ret) + ret = setredbalance(gspca_dev); + if (0 <= ret) + ret = setbluebalance(gspca_dev); + if (0 <= ret) setgain(gspca_dev); if (0 <= ret) setexposure(gspca_dev); @@ -857,6 +941,48 @@ static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val) return 0; } +static int sd_setredbalance(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret = 0; + + sd->red_balance = val; + if (gspca_dev->streaming) + ret = setredbalance(gspca_dev); + if (0 <= ret) + ret = 0; + return ret; +} + +static int sd_getredbalance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->red_balance; + return 0; +} + +static int sd_setbluebalance(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret = 0; + + sd->blue_balance = val; + if (gspca_dev->streaming) + ret = setbluebalance(gspca_dev); + if (0 <= ret) + ret = 0; + return ret; +} + +static int sd_getbluebalance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->blue_balance; + return 0; +} + static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; |