DVB (2451): Add support for KWorld DVB-S 100, based on the same chips as Hauppauge

- 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, 9 insertions, 0 deletions

diff --git a/drivers/media/dvb/frontends/cx24123.h b/drivers/media/dvb/frontends/cx24123.h
index a6b85d517578..0c922b5e9263 100644
--- a/drivers/media/dvb/frontends/cx24123.h
+++ b/drivers/media/dvb/frontends/cx24123.h
@@ -28,12 +28,21 @@ struct cx24123_config
         /* the demodulator's i2c address */
         u8 demod_address;
 
+        /*
+           cards like Hauppauge Nova-S Plus/Nova-SE2 use an Intersil ISL6421 chip
+           for LNB control, while KWorld DVB-S 100 use the LNBDC and LNBTone bits
+           from register 0x29 of the CX24123 demodulator
+        */
+        int use_isl6421;
+
         /* PLL maintenance */
         int (*pll_init)(struct dvb_frontend* fe);
         int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
 
         /* Need to set device param for start_dma */
         int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
+
+        void (*enable_lnb_voltage)(struct dvb_frontend* fe, int on);
 };
 
 extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,