V4L/DVB (10746): sms1xxx: enable rf switch on Hauppauge Tiger devices
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c
index 2da953a..0a7af92 100644
--- a/drivers/media/dvb/siano/smsdvb.c
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -262,6 +262,7 @@
struct SmsMsgHdr_ST Msg;
u32 Data[3];
} Msg;
+ int ret;
Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
Msg.Msg.msgDstId = HIF_TASK;
@@ -282,6 +283,24 @@
default: return -EINVAL;
}
+ /* Disable LNA, if any. An error is returned if no LNA is present */
+ ret = sms_board_lna_control(client->coredev, 0);
+ if (ret == 0) {
+ fe_status_t status;
+
+ /* tune with LNA off at first */
+ ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
+ &client->tune_done);
+
+ smsdvb_read_status(fe, &status);
+
+ if (status & FE_HAS_LOCK)
+ return ret;
+
+ /* previous tune didnt lock - enable LNA and tune again */
+ sms_board_lna_control(client->coredev, 1);
+ }
+
return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
&client->tune_done);
}