diff options
| author | Frank Schäfer <fschaefer.oss@googlemail.com> | 2012-09-09 22:02:21 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-14 00:53:57 +0400 |
| commit | b1a19c0165573b169eceb690df7a72bf1ffa47dc (patch) | |
| tree | 7a6ee71e05bb0b8b9034b0e2719ee4d08a28792a /drivers/media/usb/gspca/pac7302.c | |
| parent | db43b9ca2f101d0945d043fa7d5ecd8f2da17fef (diff) | |
| download | linux-b1a19c0165573b169eceb690df7a72bf1ffa47dc.tar.xz | |
[media] gspca_pac7302: add sharpness control
The Windows driver uses page 0 register 0xb6 for sharpness adjustment.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/gspca/pac7302.c')
| -rw-r--r-- | drivers/media/usb/gspca/pac7302.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/media/usb/gspca/pac7302.c b/drivers/media/usb/gspca/pac7302.c index eb3c90e4a658..8c2961326a65 100644 --- a/drivers/media/usb/gspca/pac7302.c +++ b/drivers/media/usb/gspca/pac7302.c @@ -26,6 +26,11 @@ /* * Some documentation about various registers as determined by trial and error. * + * Register page 0: + * + * Address Description + * 0xb6 Sharpness control (bits 0-4) + * * Register page 1: * * Address Description @@ -66,6 +71,7 @@ * -----+------------+--------------------------------------------------- * 0 | 0x0f..0x20 | setcolors() * 0 | 0xa2..0xab | setbrightcont() + * 0 | 0xb6 | setsharpness() * 0 | 0xc5 | setredbalance() * 0 | 0xc6 | setwhitebalance() * 0 | 0xc7 | setbluebalance() @@ -109,6 +115,7 @@ struct sd { struct v4l2_ctrl *hflip; struct v4l2_ctrl *vflip; }; + struct v4l2_ctrl *sharpness; u8 flags; #define FL_HFLIP 0x01 /* mirrored by default */ #define FL_VFLIP 0x02 /* vertical flipped by default */ @@ -531,6 +538,16 @@ static void sethvflip(struct gspca_dev *gspca_dev) reg_w(gspca_dev, 0x11, 0x01); } +static void setsharpness(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ + reg_w(gspca_dev, 0xb6, sd->sharpness->val); + + reg_w(gspca_dev, 0xdc, 0x01); +} + /* this function is called at probe and resume time for pac7302 */ static int sd_init(struct gspca_dev *gspca_dev) { @@ -584,6 +601,9 @@ static int sd_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_HFLIP: sethvflip(gspca_dev); break; + case V4L2_CID_SHARPNESS: + setsharpness(gspca_dev); + break; default: return -EINVAL; } @@ -601,7 +621,7 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; gspca_dev->vdev.ctrl_handler = hdl; - v4l2_ctrl_handler_init(hdl, 11); + v4l2_ctrl_handler_init(hdl, 12); sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_BRIGHTNESS, 0, 32, 1, 16); @@ -632,6 +652,9 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) sd->vflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); + sd->sharpness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_SHARPNESS, 0, 15, 1, 8); + if (hdl->error) { pr_err("Could not initialize controls\n"); return hdl->error; |