* bttv-driver.c, bttvp.h:
- New bttv module params:
- uv_ratio : allow a ratio of saturation between u and v. If you
have a ratio of 40 and a saturation of 100, usat will be 80 and
vstat 120. Useful to correct a bad color balance.
- full_luma_range : provide a better contrast in using the full
range 0-253 of values instead of 16-253.
- coring : to have a better black level.
- radio range is now defined on tuner-core.c. Cleaning up.
* bttvp.h:
- Fix gcc 4.0 compilation
Signed-off-by: Jorik Jonker <[email protected]>
Signed-off-by: Sylvain Meyer <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Nickolay V Shmyrev <[email protected]>
linux/drivers/media/video/bttv-driver.c | 73 +++++++++++++++++++++---
linux/drivers/media/video/bttvp.h | 15 ++--
2 files changed, 73 insertions(+), 15 deletions(-)
diff -u linux-2.6.12-mm1/drivers/media/video/bttvp.h linux/drivers/media/video/bttvp.h
--- linux-2.6.12-mm1/drivers/media/video/bttvp.h 2005-06-21 02:52:57.000000000 -0300
+++ linux/drivers/media/video/bttvp.h 2005-06-22 01:04:06.000000000 -0300
@@ -1,5 +1,5 @@
/*
- $Id: bttvp.h,v 1.17 2005/02/16 12:14:10 kraxel Exp $
+ $Id: bttvp.h,v 1.19 2005/06/16 21:38:45 nsh Exp $
bttv - Bt848 frame grabber driver
@@ -226,11 +226,6 @@
#define dprintk if (bttv_debug >= 1) printk
#define d2printk if (bttv_debug >= 2) printk
-/* our devices */
-#define BTTV_MAX 16
-extern unsigned int bttv_num;
-extern struct bttv bttvs[BTTV_MAX];
-
#define BTTV_MAX_FBUF 0x208000
#define VBIBUF_SIZE (2048*VBI_MAXLINES*2)
#define BTTV_TIMEOUT (HZ/2) /* 0.5 seconds */
@@ -331,6 +326,9 @@
int opt_vcr_hack;
int opt_whitecrush_upper;
int opt_whitecrush_lower;
+ int opt_uv_ratio;
+ int opt_full_luma_range;
+ int opt_coring;
/* radio data/state */
int has_radio;
@@ -377,6 +375,11 @@
struct bttv_fh init;
};
+/* our devices */
+#define BTTV_MAX 16
+extern unsigned int bttv_num;
+extern struct bttv bttvs[BTTV_MAX];
+
/* private ioctls */
#define BTTV_VERSION _IOR('v' , BASE_VIDIOCPRIVATE+6, int)
#define BTTV_VBISIZE _IOR('v' , BASE_VIDIOCPRIVATE+8, int)
diff -u linux-2.6.12-mm1/drivers/media/video/bttv-driver.c linux/drivers/media/video/bttv-driver.c
--- linux-2.6.12-mm1/drivers/media/video/bttv-driver.c 2005-06-21 02:52:57.000000000 -0300
+++ linux/drivers/media/video/bttv-driver.c 2005-06-22 01:04:06.000000000 -0300
@@ -1,5 +1,5 @@
/*
- $Id: bttv-driver.c,v 1.38 2005/06/10 17:20:24 mchehab Exp $
+ $Id: bttv-driver.c,v 1.40 2005/06/16 21:38:45 nsh Exp $
bttv - Bt848 frame grabber driver
@@ -76,6 +76,9 @@
static unsigned int whitecrush_lower = 0x7F;
static unsigned int vcr_hack = 0;
static unsigned int irq_iswitch = 0;
+static unsigned int uv_ratio = 50;
+static unsigned int full_luma_range = 0;
+static unsigned int coring = 0;
/* API features (turn on/off stuff for testing) */
static unsigned int v4l2 = 1;
@@ -106,6 +109,9 @@
module_param(whitecrush_upper, int, 0444);
module_param(whitecrush_lower, int, 0444);
module_param(vcr_hack, int, 0444);
+module_param(uv_ratio, int, 0444);
+module_param(full_luma_range, int, 0444);
+module_param(coring, int, 0444);
module_param_array(radio, int, NULL, 0444);
@@ -124,6 +130,9 @@
MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
+MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
+MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
+MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
@@ -484,7 +493,10 @@
#define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
#define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
#define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
-#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 8)
+#define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
+#define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
+#define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
+#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
static const struct v4l2_queryctrl no_ctl = {
.name = "42",
@@ -618,8 +630,32 @@
.step = 1,
.default_value = 0x7F,
.type = V4L2_CTRL_TYPE_INTEGER,
+ },{
+ .id = V4L2_CID_PRIVATE_UV_RATIO,
+ .name = "uv ratio",
+ .minimum = 0,
+ .maximum = 100,
+ .step = 1,
+ .default_value = 50,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },{
+ .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
+ .name = "full luma range",
+ .minimum = 0,
+ .maximum = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ },{
+ .id = V4L2_CID_PRIVATE_CORING,
+ .name = "coring",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+ .default_value = 0,
+ .type = V4L2_CTRL_TYPE_INTEGER,
}
+
+
};
static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
@@ -833,8 +869,8 @@
btv->saturation = color;
/* 0-511 for the color */
- val_u = color >> 7;
- val_v = ((color>>7)*180L)/254;
+ val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
+ val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
hibits = (val_u >> 7) & 2;
hibits |= (val_v >> 8) & 1;
btwrite(val_u & 0xff, BT848_SAT_U_LO);
@@ -1151,6 +1187,15 @@
case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
c->value = btv->opt_whitecrush_lower;
break;
+ case V4L2_CID_PRIVATE_UV_RATIO:
+ c->value = btv->opt_uv_ratio;
+ break;
+ case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
+ c->value = btv->opt_full_luma_range;
+ break;
+ case V4L2_CID_PRIVATE_CORING:
+ c->value = btv->opt_coring;
+ break;
default:
return -EINVAL;
}
@@ -1247,6 +1292,18 @@
btv->opt_whitecrush_lower = c->value;
btwrite(c->value, BT848_WC_DOWN);
break;
+ case V4L2_CID_PRIVATE_UV_RATIO:
+ btv->opt_uv_ratio = c->value;
+ bt848_sat(btv, btv->saturation);
+ break;
+ case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
+ btv->opt_full_luma_range = c->value;
+ btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
+ break;
+ case V4L2_CID_PRIVATE_CORING:
+ btv->opt_coring = c->value;
+ btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
+ break;
default:
return -EINVAL;
}
@@ -3117,11 +3174,6 @@
return -EINVAL;
memset(v,0,sizeof(*v));
strcpy(v->name, "Radio");
- /* japan: 76.0 MHz - 89.9 MHz
- western europe: 87.5 MHz - 108.0 MHz
- russia: 65.0 MHz - 108.0 MHz */
- v->rangelow=(int)(65*16);
- v->rangehigh=(int)(108*16);
bttv_call_i2c_clients(btv,cmd,v);
return 0;
}
@@ -3876,6 +3928,9 @@
btv->opt_vcr_hack = vcr_hack;
btv->opt_whitecrush_upper = whitecrush_upper;
btv->opt_whitecrush_lower = whitecrush_lower;
+ btv->opt_uv_ratio = uv_ratio;
+ btv->opt_full_luma_range = full_luma_range;
+ btv->opt_coring = coring;
/* fill struct bttv with some useful defaults */
btv->init.btv = btv;
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