V4L/DVB (12446): sms1xxx: restore GPIO functionality for all Hauppauge devices

Previous changesets broke Hauppauge devices and their GPIO configurations.

This changeset restores the LED & LNA functionality.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c
index 3ee1c3902c56..266033ae2784 100644
--- a/drivers/media/dvb/siano/smsdvb.c
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -325,6 +325,16 @@ static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
                                                 0 : -ETIME;
 }
 
+static inline int led_feedback(struct smsdvb_client_t *client)
+{
+        if (client->fe_status & FE_HAS_LOCK)
+                return sms_board_led_feedback(client->coredev,
+                        (client->sms_stat_dvb.ReceptionData.BER
+                        == 0) ? SMS_LED_HI : SMS_LED_LO);
+        else
+                return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
+}
+
 static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
 {
         struct smsdvb_client_t *client;
@@ -332,6 +342,8 @@ static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
 
         *stat = client->fe_status;
 
+        led_feedback(client);
+
         return 0;
 }
 
@@ -342,6 +354,8 @@ static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
 
         *ber = client->sms_stat_dvb.ReceptionData.BER;
 
+        led_feedback(client);
+
         return 0;
 }
 
@@ -359,6 +373,8 @@ static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
                                 (client->sms_stat_dvb.ReceptionData.InBandPwr
                                 + 95) * 3 / 2;
 
+        led_feedback(client);
+
         return 0;
 }
 
@@ -369,6 +385,8 @@ static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
 
         *snr = client->sms_stat_dvb.ReceptionData.SNR;
 
+        led_feedback(client);
+
         return 0;
 }
 
@@ -379,6 +397,8 @@ static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 
         *ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets;
 
+        led_feedback(client);
+
         return 0;
 }
 
@@ -404,6 +424,8 @@ static int smsdvb_set_frontend(struct dvb_frontend *fe,
                 u32             Data[3];
         } Msg;
 
+        int ret;
+
         client->fe_status = FE_HAS_SIGNAL;
         client->event_fe_state = -1;
         client->event_unc_state = -1;
@@ -426,6 +448,23 @@ static int smsdvb_set_frontend(struct dvb_frontend *fe,
         case BANDWIDTH_AUTO: return -EOPNOTSUPP;
         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);
@@ -451,6 +490,8 @@ static int smsdvb_init(struct dvb_frontend *fe)
         struct smsdvb_client_t *client =
                 container_of(fe, struct smsdvb_client_t, frontend);
 
+        sms_board_power(client->coredev, 1);
+
         sms_board_dvb3_event(client, DVB3_EVENT_INIT);
         return 0;
 }
@@ -460,6 +501,9 @@ static int smsdvb_sleep(struct dvb_frontend *fe)
         struct smsdvb_client_t *client =
                 container_of(fe, struct smsdvb_client_t, frontend);
 
+        sms_board_led_feedback(client->coredev, SMS_LED_OFF);
+        sms_board_power(client->coredev, 0);
+
         sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
 
         return 0;