openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[media] gscpa_spca561: Add brightness control for rev12a cams 

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 2012-07-02 15:29:56 -03:00 committed by Mauro Carvalho Chehab
parent 9a3dafe431
commit a8931d5948
1 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/media/video/gspca/spca561.c
View File

@ -463,16 +463,21 @@ static int sd_init_72a(struct gspca_dev *gspca_dev)
return 0;
}
/* rev 72a only */
static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
struct usb_device *dev = gspca_dev->dev;
__u16 reg;
/* offsets for white balance */
reg_w_val(dev, 0x8611, val); /* R */
reg_w_val(dev, 0x8612, val); /* Gr */
reg_w_val(dev, 0x8613, val); /* B */
reg_w_val(dev, 0x8614, val); /* Gb */
if (sd->chip_revision == Rev012A)
reg = 0x8610;
else
reg = 0x8611;
reg_w_val(dev, reg + 0, val); /* R */
reg_w_val(dev, reg + 1, val); /* Gr */
reg_w_val(dev, reg + 2, val); /* B */
reg_w_val(dev, reg + 3, val); /* Gb */
}
static void setwhite(struct gspca_dev *gspca_dev, s32 white, s32 contrast)
@ -814,6 +819,8 @@ static int sd_init_controls_12a(struct gspca_dev *gspca_dev)
v4l2_ctrl_handler_init(hdl, 3);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_HUE, 1, 0x7f, 1, 0x40);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_EXPOSURE, 1, EXPOSURE_MAX, 1, 700);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,