V4L/DVB (7070): Fix some tuning problems

The attached patch solves all my vdr tuning problems on a dib7000p
nova-t stick as far as I could check within the last weekend.

It disables streaming while tuning, like that the number of faulty TS
packets is reduced.

Signed-off-by: Soeren Moch <Soeren.Moch@stud.uni-hannover.de>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/dvb/frontends/dib3000mc.c b/drivers/media/dvb/frontends/dib3000mc.c
index 3667f8e..fa85160 100644 (file)
--- a/drivers/media/dvb/frontends/dib3000mc.c
+++ b/drivers/media/dvb/frontends/dib3000mc.c
@@ -684,6 +684,9 @@ static int dib3000mc_set_frontend(struct dvb_frontend* fe,
                                struct dvb_frontend_parameters *fep)
 {
        struct dib3000mc_state *state = fe->demodulator_priv;
+    int ret;
+
+       dib3000mc_set_output_mode(state, OUTMODE_HIGH_Z);
 
        state->current_bandwidth = fep->u.ofdm.bandwidth;
        dib3000mc_set_bandwidth(state, BANDWIDTH_TO_KHZ(fep->u.ofdm.bandwidth));
@@ -715,10 +718,11 @@ static int dib3000mc_set_frontend(struct dvb_frontend* fe,
                dib3000mc_get_frontend(fe, fep);
        }
 
+    ret = dib3000mc_tune(fe, fep);
+
        /* make this a config parameter */
        dib3000mc_set_output_mode(state, OUTMODE_MPEG2_FIFO);
-
-       return dib3000mc_tune(fe, fep);
+    return ret;
 }
 
 static int dib3000mc_read_status(struct dvb_frontend *fe, fe_status_t *stat)

diff --git a/drivers/media/dvb/frontends/dib7000m.c b/drivers/media/dvb/frontends/dib7000m.c
index fb18441..5f1375e 100644 (file)
--- a/drivers/media/dvb/frontends/dib7000m.c
+++ b/drivers/media/dvb/frontends/dib7000m.c
@@ -1171,7 +1171,9 @@ static int dib7000m_set_frontend(struct dvb_frontend* fe,
                                struct dvb_frontend_parameters *fep)
 {
        struct dib7000m_state *state = fe->demodulator_priv;
-       int time;
+       int time, ret;
+
+    dib7000m_set_output_mode(state, OUTMODE_HIGH_Z);
 
        state->current_bandwidth = fep->u.ofdm.bandwidth;
        dib7000m_set_bandwidth(state, BANDWIDTH_TO_KHZ(fep->u.ofdm.bandwidth));
@@ -1206,10 +1208,11 @@ static int dib7000m_set_frontend(struct dvb_frontend* fe,
                dib7000m_get_frontend(fe, fep);
        }
 
+       ret = dib7000m_tune(fe, fep);
+
        /* make this a config parameter */
        dib7000m_set_output_mode(state, OUTMODE_MPEG2_FIFO);
-
-       return dib7000m_tune(fe, fep);
+       return ret;
 }
 
 static int dib7000m_read_status(struct dvb_frontend *fe, fe_status_t *stat)

diff --git a/drivers/media/dvb/frontends/dib7000p.c b/drivers/media/dvb/frontends/dib7000p.c
index f45bcfc..0396a6f 100644 (file)
--- a/drivers/media/dvb/frontends/dib7000p.c
+++ b/drivers/media/dvb/frontends/dib7000p.c
@@ -1128,8 +1128,9 @@ static int dib7000p_set_frontend(struct dvb_frontend* fe,
                                struct dvb_frontend_parameters *fep)
 {
        struct dib7000p_state *state = fe->demodulator_priv;
-       int time;
+       int time, ret;
 
+       dib7000p_set_output_mode(state, OUTMODE_HIGH_Z);
        state->current_bandwidth = fep->u.ofdm.bandwidth;
        dib7000p_set_bandwidth(state, BANDWIDTH_TO_KHZ(fep->u.ofdm.bandwidth));
 
@@ -1166,10 +1167,11 @@ static int dib7000p_set_frontend(struct dvb_frontend* fe,
                dib7000p_get_frontend(fe, fep);
        }
 
+       ret = dib7000p_tune(fe, fep);
+
        /* make this a config parameter */
        dib7000p_set_output_mode(state, OUTMODE_MPEG2_FIFO);
-
-       return dib7000p_tune(fe, fep);
+    return ret;
 }
 
 static int dib7000p_read_status(struct dvb_frontend *fe, fe_status_t *stat)