[media] gspca - sonixj: Adjust autogain for sensor mt9v111

The gain/expo adjustment was too long.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 9 insertions, 6 deletions

diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index 01ee39be2c75..b7a7e96d3bd8 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -1939,10 +1939,10 @@ static u32 setexposure(struct gspca_dev *gspca_dev,
                 u8 expo_c1[] =
                         { 0xb1, 0x5c, 0x09, 0x00, 0x00, 0x00, 0x00, 0x10 };
 
-                if (expo > 0x0280)
-                        expo = 0x0280;
-                else if (expo < 0x0040)
-                        expo = 0x0040;
+                if (expo > 0x0390)
+                        expo = 0x0390;
+                else if (expo < 0x0060)
+                        expo = 0x0060;
                 expo_c1[3] = expo >> 8;
                 expo_c1[4] = expo;
                 i2c_w8(gspca_dev, expo_c1);
@@ -1999,10 +1999,13 @@ static void setbrightness(struct gspca_dev *gspca_dev)
                 sd->exposure = setexposure(gspca_dev, expo);
                 break;
         case SENSOR_GC0307:
-        case SENSOR_MT9V111:
                 expo = brightness;
                 sd->exposure = setexposure(gspca_dev, expo);
                 return;                 /* don't set the Y offset */
+        case SENSOR_MT9V111:
+                expo = brightness << 2;
+                sd->exposure = setexposure(gspca_dev, expo);
+                return;                 /* don't set the Y offset */
         case SENSOR_OM6802:
                 expo = brightness << 2;
                 sd->exposure = setexposure(gspca_dev, expo);
@@ -2750,6 +2753,7 @@ static void do_autogain(struct gspca_dev *gspca_dev)
                                         (unsigned int) (expotimes << 8));
                         break;
                 case SENSOR_OM6802:
+                case SENSOR_MT9V111:
                         expotimes = sd->exposure;
                         expotimes += (luma_mean - delta) >> 2;
                         if (expotimes < 0)
@@ -2762,7 +2766,6 @@ static void do_autogain(struct gspca_dev *gspca_dev)
 /*              case SENSOR_MO4000: */
 /*              case SENSOR_MI0360: */
 /*              case SENSOR_MI0360B: */
-/*              case SENSOR_MT9V111: */
                         expotimes = sd->exposure;
                         expotimes += (luma_mean - delta) >> 6;
                         if (expotimes < 0)