V4L/DVB (7596): em28xx-dvb: Add support for HVR950

This patch adds DVB support for Hauppauge HVR950.

Thanks to Michael Krufky <mkrufky@linuxtv.org> for getting those values.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/em28xx/Kconfig

@@ -31,6 +31,7 @@ config VIDEO_EM28XX_ALSA
 config VIDEO_EM28XX_DVB
 	tristate "DVB/ATSC Support for em28xx based TV cards"
 	depends on VIDEO_EM28XX && DVB_CORE
+	select DVB_LGDT330X if !DVB_FE_CUSTOMISE
 	select VIDEOBUF_DVB
 	select FW_LOADER
 	---help---

drivers/media/video/em28xx/em28xx-cards.c

@@ -180,6 +180,7 @@ struct em28xx_board em28xx_boards[] = {
 		.tuner_type     = TUNER_XC2028,
 		.mts_firmware   = 1,
 		.has_12mhz_i2s  = 1,
+		.has_dvb        = 1,
 		.decoder        = EM28XX_TVP5150,
 		.input          = { {
 			.type     = EM28XX_VMUX_TELEVISION,
@@ -194,6 +195,32 @@ struct em28xx_board em28xx_boards[] = {
 			.vmux     = TVP5150_SVIDEO,
 			.amux     = 1,
 		} },
+		.analog_gpio = {
+			{		/* xc3028 reset seq */
+				.reg = 0x08,
+				.val = 0x3d,
+				.rst = 0x2d,
+				.t1 = 5,
+				.t2 = 10,
+				.t3 = 5,
+			},
+		},
+		.digital_gpio = {
+			{		/* xc3028 reset seq */
+				.reg = 0x08,
+				.val = 0x3e,
+				.rst = 0x2e,
+				.t1 = 6,
+				.t2 = 6,
+				.t3 = 6,
+			}, {		/* demod reset seq */
+				.reg = 0x04,
+				.val = 0x0c,
+				.rst = 0x04,
+				.t2 = 10,
+				.t3 = 10,
+			}
+		},
 	},
 	[EM2880_BOARD_TERRATEC_HYBRID_XS] = {
 		.name         = "Terratec Hybrid XS",
@@ -521,7 +548,7 @@ void em28xx_pre_card_setup(struct em28xx *dev)
 
 	/* Put xc2028 tuners and demods into a sane state */
 	if (dev->tuner_type == TUNER_XC2028) {
-		dev->mode = EM28XX_DIGITAL_MODE;
+		dev->mode = EM28XX_ANALOG_MODE;
 		em28xx_tuner_callback(dev, XC2028_TUNER_RESET, 0);
 	};
 }

drivers/media/video/em28xx/em28xx-dvb.c

@@ -58,7 +58,10 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 
 /* ------------------------------------------------------------------ */
 
-/* Add demods here */
+static struct lgdt330x_config em2880_lgdt3303_dev = {
+	.demod_address = 0x0e,
+	.demod_chip = LGDT3303,
+};
 
 /* ------------------------------------------------------------------ */
 
@@ -70,6 +73,7 @@ static int attach_xc3028(u8 addr, struct em28xx *dev)
 		.i2c_adap  = &dev->i2c_adap,
 		.i2c_addr  = addr,
 		.ctrl      = &ctl,
+		.callback  = em28xx_tuner_callback,
 	};
 
 	if (!dev->dvb.frontend) {
@@ -109,6 +113,17 @@ static int dvb_init(struct em28xx *dev)
 
 	/* init frontend */
 	switch (dev->model) {
+	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950:
+		/* Enable lgdt330x */
+		dev->mode = EM28XX_ANALOG_MODE;
+		em28xx_tuner_callback(dev, XC2028_TUNER_RESET, 0);
+
+		dev->dvb.frontend = dvb_attach(lgdt330x_attach,
+					       &em2880_lgdt3303_dev,
+					       &dev->i2c_adap);
+		if (attach_xc3028(0x61, dev) < 0)
+			return -EINVAL;
+		break;
 	default:
 		printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
 				" isn't supported yet\n",