V4L/DVB (4285): Cx88: add support for Geniatech Digistar / Digiwave 103g

This patch adds support for the Geniatech Digistar, aka
Digiwave 103g DVB-S card.
Acked-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Saqeb Akhter <johoja@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

Documentation/video4linux/CARDLIST.cx88

@@ -50,3 +50,4 @@
  49 -> PixelView PlayTV P7000                              [1554:4813]
  50 -> NPG Tech Real TV FM Top 10                          [14f1:0842]
  51 -> WinFast DTV2000 H                                   [107d:665e]
+ 52 -> Geniatech DVB-S                                     [14f1:0084]

drivers/media/video/cx88/cx88-cards.c

@@ -1194,6 +1194,21 @@ struct cx88_board cx88_boards[] = {
 		}},
 		.dvb            = 1,
 	},
+	[CX88_BOARD_GENIATECH_DVBS] = {
+		.name          = "Geniatech DVB-S",
+		.tuner_type    = TUNER_ABSENT,
+		.radio_type    = UNSET,
+		.tuner_addr    = ADDR_UNSET,
+		.radio_addr    = ADDR_UNSET,
+		.input  = {{
+			.type  = CX88_VMUX_DVB,
+			.vmux  = 0,
+		},{
+			.type  = CX88_VMUX_COMPOSITE1,
+			.vmux  = 1,
+		}},
+		.dvb      = 1,
+	},
 };
 const unsigned int cx88_bcount = ARRAY_SIZE(cx88_boards);
 
@@ -1439,6 +1454,10 @@ struct cx88_subid cx88_subids[] = {
 		.subvendor = 0x18ac,
 		.subdevice = 0xd800, /* FusionHDTV 3 Gold (original revision) */
 		.card      = CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q,
+	},{
+		.subvendor = 0x14f1,
+		.subdevice = 0x0084,
+		.card      = CX88_BOARD_GENIATECH_DVBS,
 	},
 };
 const unsigned int cx88_idcount = ARRAY_SIZE(cx88_subids);

drivers/media/video/cx88/cx88-dvb.c

@@ -496,6 +496,26 @@ static int kworld_dvbs_100_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t
 	return 0;
 }
 
+static int geniatech_dvbs_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
+{
+	struct cx8802_dev *dev= fe->dvb->priv;
+	struct cx88_core *core = dev->core;
+
+	if (voltage == SEC_VOLTAGE_OFF) {
+		dprintk(1,"LNB Voltage OFF\n");
+		cx_write(MO_GP0_IO, 0x0000efff);
+	}
+
+	if (core->prev_set_voltage)
+		return core->prev_set_voltage(fe, voltage);
+	return 0;
+}
+
+static struct cx24123_config geniatech_dvbs_config = {
+	.demod_address  = 0x55,
+	.set_ts_params  = cx24123_set_ts_param,
+};
+
 static struct cx24123_config hauppauge_novas_config = {
 	.demod_address		= 0x55,
 	.set_ts_params		= cx24123_set_ts_param,
@@ -760,6 +780,14 @@ static int dvb_register(struct cx8802_dev *dev)
 			dev->dvb.frontend->ops.set_voltage = kworld_dvbs_100_set_voltage;
 		}
 		break;
+	case CX88_BOARD_GENIATECH_DVBS:
+		dev->dvb.frontend = cx24123_attach(&geniatech_dvbs_config,
+						   &dev->core->i2c_adap);
+		if (dev->dvb.frontend) {
+			dev->core->prev_set_voltage = dev->dvb.frontend->ops.set_voltage;
+			dev->dvb.frontend->ops.set_voltage = geniatech_dvbs_set_voltage;
+		}
+		break;
 #endif
 	default:
 		printk("%s: The frontend of your DVB/ATSC card isn't supported yet\n",

drivers/media/video/cx88/cx88.h

@@ -196,6 +196,7 @@ extern struct sram_channel cx88_sram_channels[];
 #define CX88_BOARD_PIXELVIEW_PLAYTV_P7000  49
 #define CX88_BOARD_NPGTECH_REALTV_TOP10FM  50
 #define CX88_BOARD_WINFAST_DTV2000H        51
+#define CX88_BOARD_GENIATECH_DVBS          52
 
 enum cx88_itype {
 	CX88_VMUX_COMPOSITE1 = 1,