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authorJean-Francois Moine <moinejf@free.fr>2009-01-07 16:49:57 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:42:30 -0300
commit36e819db435a61819d50c57c424a5ab2b9634e59 (patch)
tree298bc85147b5fb60eaf5e6ecb745382a9a3580fa /drivers/media/video/gspca/zc3xx.c
parent96ff65144c3e302698d6c53b8d05098844c6b064 (diff)
V4L/DVB (10345): gspca - jpeg subdrivers: One quantization table per subdriver.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/zc3xx.c')
-rw-r--r--drivers/media/video/gspca/zc3xx.c36
1 files changed, 12 insertions, 24 deletions
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index 2482f9163adb..226aafc9688d 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -31,6 +31,7 @@ MODULE_LICENSE("GPL");
static int force_sensor = -1;
+#define QUANT_VAL 1 /* quantization table */
#include "jpeg.h"
#include "zc3xx-reg.h"
@@ -45,7 +46,6 @@ struct sd {
__u8 lightfreq;
__u8 sharpness;
- char qindex;
signed char sensor; /* Type of image sensor chip */
/* !! values used in different tables */
#define SENSOR_CS2102 0
@@ -6536,7 +6536,6 @@ static void setquality(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
struct usb_device *dev = gspca_dev->dev;
- __u8 quality;
__u8 frxt;
switch (sd->sensor) {
@@ -6547,26 +6546,18 @@ static void setquality(struct gspca_dev *gspca_dev)
return;
}
/*fixme: is it really 0008 0007 0018 for all other sensors? */
- quality = sd->qindex;
- reg_w(dev, quality, 0x0008);
+ reg_w(dev, QUANT_VAL, 0x0008);
frxt = 0x30;
reg_w(dev, frxt, 0x0007);
- switch (quality) {
- case 0:
- case 1:
- case 2:
- frxt = 0xff;
- break;
- case 3:
- frxt = 0xf0;
- break;
- case 4:
- frxt = 0xe0;
- break;
- case 5:
- frxt = 0x20;
- break;
- }
+#if QUANT_VAL == 0 || QUANT_VAL == 1 || QUANT_VAL == 2
+ frxt = 0xff;
+#elif QUANT_VAL == 3
+ frxt = 0xf0;
+#elif QUANT_VAL == 4
+ frxt = 0xe0;
+#else
+ frxt = 0x20;
+#endif
reg_w(dev, frxt, 0x0018);
}
@@ -7156,7 +7147,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
cam->cam_mode = sif_mode;
cam->nmodes = ARRAY_SIZE(sif_mode);
}
- sd->qindex = 1;
sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
sd->gamma = gamma[(int) sd->sensor];
@@ -7358,9 +7348,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
data, 0);
/* put the JPEG header in the new frame */
- jpeg_put_header(gspca_dev, frame,
- ((struct sd *) gspca_dev)->qindex,
- 0x21);
+ jpeg_put_header(gspca_dev, frame, 0x21);
/* remove the webcam's header:
* ff d8 ff fe 00 0e 00 00 ss ss 00 01 ww ww hh hh pp pp
* - 'ss ss' is the frame sequence number (BE)