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>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c
index dce1feddd55d..afde3789d702 100644
--- a/drivers/media/video/cx88/cx88-dvb.c
+++ b/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",