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[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>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2013-03-07 16:34:53 -03:00
parent a51fea4fdb
commit 0c189fa69e
1 changed files with 18 additions and 1 deletions
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19
drivers/media/common/siano/smsdvb.c
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@ -655,7 +655,7 @@ static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
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 @@ static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
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);
}