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>

1 files changed, 25 insertions, 2 deletions

diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c
index 21972572a943..054094e48fc3 100644
--- a/drivers/media/video/cx88/cx88-dvb.c
+++ b/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",