V4L/DVB (8706): Make contrast and brightness work for pac7302.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index 3c9f2b1..3abc018 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -82,9 +82,10 @@
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
- .maximum = 255,
+#define CONTRAST_MAX 255
+ .maximum = CONTRAST_MAX,
.step = 1,
-#define CONTRAST_DEF 127
+#define CONTRAST_DEF 60
.default_value = CONTRAST_DEF,
},
.set = sd_setcontrast,
@@ -94,7 +95,7 @@
{
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Color",
+ .name = "Saturation",
.minimum = 0,
.maximum = 255,
.step = 1,
@@ -429,13 +430,42 @@
return 0;
}
+/* rev 12a only */
+static void setbrightcont(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int i, v;
+ static const __u8 max[10] =
+ {0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb,
+ 0xd4, 0xec};
+ static const __u8 delta[10] =
+ {0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17,
+ 0x11, 0x0b};
+
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ for (i = 0; i < 10; i++) {
+ v = max[i];
+ v += (sd->brightness - BRIGHTNESS_MAX)
+ * 150 / BRIGHTNESS_MAX; /* 200 ? */
+ v -= delta[i] * sd->contrast / CONTRAST_MAX;
+ if (v < 0)
+ v = 0;
+ else if (v > 0xff)
+ v = 0xff;
+ reg_w(gspca_dev, 0xa2 + i, v);
+ }
+ reg_w(gspca_dev, 0xdc, 0x01);
+}
+
static void setbrightness(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int brightness;
- if (sd->sensor == SENSOR_PAC7302)
+ if (sd->sensor == SENSOR_PAC7302) {
+ setbrightcont(gspca_dev);
return;
+ }
/*jfm: inverted?*/
brightness = BRIGHTNESS_MAX - sd->brightness;
reg_w(gspca_dev, 0xff, 0x04);
@@ -449,13 +479,14 @@
{
struct sd *sd = (struct sd *) gspca_dev;
- if (sd->sensor == SENSOR_PAC7302)
+ if (sd->sensor == SENSOR_PAC7302) {
+ setbrightcont(gspca_dev);
return;
+ }
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x80, sd->contrast);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
- PDEBUG(D_CONF|D_STREAM, "contrast: %i", sd->contrast);
}
static void setcolors(struct gspca_dev *gspca_dev)