[media] gspca: Remove bogus JPEG quality controls from various sub-drivers
Various gspca-subdrivers have a JPEG quality control which only changes
the quantization tables in the JPEG headers send to user-space without
making any changes to the settings of the bridge. Remove these bogus / wrong
controls.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index 1867457..e83e683 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -29,15 +29,11 @@
MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
MODULE_LICENSE("GPL");
+#define QUALITY 50
+
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
-
- struct v4l2_ctrl *jpegqual;
-#define QUALITY_MIN 70
-#define QUALITY_MAX 95
-#define QUALITY_DEF 88
-
u8 jpeg_hdr[JPEG_HDR_SZ];
};
@@ -256,6 +252,7 @@
/* create the JPEG header */
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x22); /* JPEG 411 */
+ jpeg_set_qual(sd->jpeg_hdr, QUALITY);
/* work on alternate 1 */
usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
@@ -353,32 +350,10 @@
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
}
-static int sd_set_jcomp(struct gspca_dev *gspca_dev,
- struct v4l2_jpegcompression *jcomp)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);
- return gspca_dev->usb_err;
-}
-
-static int sd_get_jcomp(struct gspca_dev *gspca_dev,
- struct v4l2_jpegcompression *jcomp)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- memset(jcomp, 0, sizeof *jcomp);
- jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);
- jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
- | V4L2_JPEG_MARKER_DQT;
- return 0;
-}
-
static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gspca_dev *gspca_dev =
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
- struct sd *sd = (struct sd *)gspca_dev;
gspca_dev->usb_err = 0;
@@ -398,9 +373,6 @@
case V4L2_CID_POWER_LINE_FREQUENCY:
setlightfreq(gspca_dev, ctrl->val);
break;
- case V4L2_CID_JPEG_COMPRESSION_QUALITY:
- jpeg_set_qual(sd->jpeg_hdr, ctrl->val);
- break;
}
return gspca_dev->usb_err;
}
@@ -411,11 +383,10 @@
static int sd_init_controls(struct gspca_dev *gspca_dev)
{
- struct sd *sd = (struct sd *)gspca_dev;
struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
gspca_dev->vdev.ctrl_handler = hdl;
- v4l2_ctrl_handler_init(hdl, 5);
+ v4l2_ctrl_handler_init(hdl, 4);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
@@ -426,9 +397,6 @@
V4L2_CID_POWER_LINE_FREQUENCY,
V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1,
V4L2_CID_POWER_LINE_FREQUENCY_50HZ);
- sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
- V4L2_CID_JPEG_COMPRESSION_QUALITY,
- QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF);
if (hdl->error) {
pr_err("Could not initialize controls\n");
@@ -446,8 +414,6 @@
.start = sd_start,
.stopN = sd_stopN,
.pkt_scan = sd_pkt_scan,
- .get_jcomp = sd_get_jcomp,
- .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */