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>

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)