[PATCH] v4l: bttv new insmod parameters

* 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: NJorik Jonker <jorik@dnd.utwente.nl>
Signed-off-by: NSylvain Meyer <sylvain.meyer@worldonline.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: NNickolay V Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/media/video/bttv-driver.c

 /*
-    $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_upper = 0xCF;
 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(adc_crush,         int, 0444);
 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_upper,"sets the white crush upper value, default is
 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 @@ static const unsigned int BTTV_FORMATS = ARRAY_SIZE(bttv_formats);
 #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 @@ static const struct v4l2_queryctrl bttv_ctls[] = {
 		.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 @@ static void bt848_sat(struct bttv *btv, int color)
 	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 @@ static int get_control(struct bttv *btv, struct v4l2_control *c)
 	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 @@ static int set_control(struct bttv *btv, struct v4l2_control *c)
 		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 @@ static int radio_do_ioctl(struct inode *inode, struct file *file,
                         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 @@ static int __devinit bttv_probe(struct pci_dev *dev,
 	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;

drivers/media/video/bttvp.h

 /*
-    $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
 
@@ -326,6 +326,9 @@ struct bttv {
 	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;