V4L (1007): Add support for KWorld DVB-S 100

- Add support for KWorld DVB-S 100, based on the same chips as Hauppauge
Nova-S Plus (CX23883/CX24123/CX24109), without the Intersil ISL6421,
which is used for LNB control.
- LNB voltage and tone are controled by LNBDC and LNBTone bits from
register 0x29 of the CX24123 demodulator.
- The MO_GP0_IO register from CX23883 is used to turn LNB power on and off.

Signed-off-by: Vadim Catana <skystar@moldova.cc>
Acked-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

Documentation/video4linux/CARDLIST.cx88

@@ -37,3 +37,4 @@
  36 -> AVerTV 303 (M126)                                   [1461:000a]
  37 -> Hauppauge Nova-S-Plus DVB-S                         [0070:9201,0070:9202]
  38 -> Hauppauge Nova-SE2 DVB-S                            [0070:9200]
+ 39 -> KWorld DVB-S 100                                    [17de:08b2]

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

@@ -928,6 +928,24 @@ struct cx88_board cx88_boards[] = {
 		}},
 		.dvb		= 1,
 	},
+	[CX88_BOARD_KWORLD_DVBS_100] = {
+		.name		= "KWorld DVB-S 100",
+		.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,
+		},{
+			.type	= CX88_VMUX_SVIDEO,
+			.vmux	= 2,
+		}},
+		.dvb		= 1,
+	},
 };
 const unsigned int cx88_bcount = ARRAY_SIZE(cx88_boards);
 
@@ -1087,6 +1105,10 @@ struct cx88_subid cx88_subids[] = {
 		.subvendor = 0x0070,
 		.subdevice = 0x9202,
 		.card      = CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1,
+	},{
+		.subvendor = 0x17de,
+		.subdevice = 0x08b2,
+		.card      = CX88_BOARD_KWORLD_DVBS_100,
 	},
 };
 const unsigned int cx88_idcount = ARRAY_SIZE(cx88_subids);
@@ -1260,6 +1282,10 @@ void cx88_card_setup(struct cx88_core *core)
 		if (0 == core->i2c_rc)
 			hauppauge_eeprom(core,eeprom);
 		break;
+	case CX88_BOARD_KWORLD_DVBS_100:
+		cx_write(MO_GP0_IO, 0x000007f8);
+		cx_write(MO_GP1_IO, 0x00000001);
+		break;
 	case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1:
 	case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS:
 		/* GPIO0:0 is hooked to mt352 reset pin */

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

@@ -326,9 +326,28 @@ static int cx24123_set_ts_param(struct dvb_frontend* fe,
 	return 0;
 }
 
+static void cx24123_enable_lnb_voltage(struct dvb_frontend* fe, int on)
+{
+	struct cx8802_dev *dev= fe->dvb->priv;
+	struct cx88_core *core = dev->core;
+
+	if (on)
+		cx_write(MO_GP0_IO, 0x000006f9);
+	else
+		cx_write(MO_GP0_IO, 0x000006fB);
+}
+
 static struct cx24123_config hauppauge_novas_config = {
-	.demod_address = 0x55,
-	.set_ts_params = cx24123_set_ts_param,
+	.demod_address		= 0x55,
+	.use_isl6421		= 1,
+	.set_ts_params		= cx24123_set_ts_param,
+};
+
+static struct cx24123_config kworld_dvbs_100_config = {
+	.demod_address		= 0x15,
+	.use_isl6421		= 0,
+	.set_ts_params		= cx24123_set_ts_param,
+	.enable_lnb_voltage	= cx24123_enable_lnb_voltage,
 };
 #endif
 
@@ -445,6 +464,10 @@ static int dvb_register(struct cx8802_dev *dev)
 		dev->dvb.frontend = cx24123_attach(&hauppauge_novas_config,
 			&dev->core->i2c_adap);
 		break;
+	case CX88_BOARD_KWORLD_DVBS_100:
+		dev->dvb.frontend = cx24123_attach(&kworld_dvbs_100_config,
+			&dev->core->i2c_adap);
+		break;
 #endif
 	default:
 		printk("%s: The frontend of your DVB/ATSC card isn't supported yet\n",

drivers/media/video/cx88/cx88.h

@@ -181,6 +181,7 @@ extern struct sram_channel cx88_sram_channels[];
 #define CX88_BOARD_AVERTV_303              36
 #define CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1  37
 #define CX88_BOARD_HAUPPAUGE_NOVASE2_S1    38
+#define CX88_BOARD_KWORLD_DVBS_100         39
 
 enum cx88_itype {
 	CX88_VMUX_COMPOSITE1 = 1,