[media] siano: add support for LNA on ISDB-T
The very same code also exists for DVB-T. Add it for ISDB-T.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/common/siano/smsdvb.c b/drivers/media/common/siano/smsdvb.c
index 4900aa9..864f53e 100644
--- a/drivers/media/common/siano/smsdvb.c
+++ b/drivers/media/common/siano/smsdvb.c
@@ -655,7 +655,7 @@
int board_id = smscore_get_board_id(client->coredev);
struct sms_board *board = sms_get_board(board_id);
enum sms_device_type_st type = board->type;
-
+ int ret;
struct {
struct SmsMsgHdr_ST Msg;
u32 Data[4];
@@ -695,6 +695,23 @@
c->frequency, c->isdbt_sb_segment_count,
c->isdbt_sb_segment_idx);
+ /* 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 didn't 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);
}