V4L/DVB (6675): Allow selecting the proper SCode table for DTV

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/tuner-xc2028.c

@@ -914,6 +914,19 @@ static int xc2028_set_analog_freq(struct dvb_frontend *fe,
 				T_ANALOG_TV, type, p->std);
 }
 
+static unsigned int demod_type [] = {
+	[XC3028_FE_DEFAULT]	= 0,
+	[XC3028_FE_LG60]	= LG60,
+	[XC3028_FE_ATI638]	= ATI638,
+	[XC3028_FE_OREN538]	= OREN538,
+	[XC3028_FE_OREN36]	= OREN36,
+	[XC3028_FE_TOYOTA388]	= TOYOTA388,
+	[XC3028_FE_TOYOTA794]	= TOYOTA794,
+	[XC3028_FE_DIBCOM52]	= DIBCOM52,
+	[XC3028_FE_ZARLINK456]	= ZARLINK456,
+	[XC3028_FE_CHINA]	= CHINA,
+};
+
 static int xc2028_set_params(struct dvb_frontend *fe,
 			     struct dvb_frontend_parameters *p)
 {
@@ -965,6 +978,11 @@ static int xc2028_set_params(struct dvb_frontend *fe,
 		tuner_err("error: bandwidth not supported.\n");
 	};
 
+	if (priv->ctrl.demod < 0 || priv->ctrl.demod > ARRAY_SIZE(demod_type))
+		tuner_err("error: demod type invalid. Assuming default.\n");
+	else
+		type |= demod_type[priv->ctrl.demod];
+
 	return generic_set_freq(fe, p->frequency,
 				T_DIGITAL_TV, type, 0);
 }

drivers/media/video/tuner-xc2028.h

@@ -11,6 +11,20 @@
 
 #define XC2028_DEFAULT_FIRMWARE "xc3028-v27.fw"
 
+enum xc2028_demod_types
+{
+	XC3028_FE_DEFAULT = 0,
+	XC3028_FE_LG60,		/* IF = 6.00 MHz */
+	XC3028_FE_ATI638,	/* IF = 6.38 MHz */
+	XC3028_FE_OREN538,	/* IF = 5.38 MHz */
+	XC3028_FE_OREN36,	/* IF = 3.60 MHz */
+	XC3028_FE_TOYOTA388,	/* IF = 3.88 MHz */
+	XC3028_FE_TOYOTA794,	/* IF = 7.94 MHz */
+	XC3028_FE_DIBCOM52,	/* IF = 5.20 MHz */
+	XC3028_FE_ZARLINK456,	/* IF = 4.56 MHz */
+	XC3028_FE_CHINA,	/* IF = 5.20 MHz */
+};
+
 struct xc2028_ctrl {
 	char			*fname;
 	int			max_len;
@@ -18,6 +32,7 @@ struct xc2028_ctrl {
 	unsigned int		mts   :1;
 	unsigned int		d2633 :1;
 	unsigned int		input1:1;
+	enum xc2028_demod_types demod;
 };
 
 struct xc2028_config {