From: Stefan Ringel <[email protected]>
Signed-off-by: Stefan Ringel <[email protected]>
---
drivers/media/common/tuners/mt2063.c | 97 ++++++++++++++-------------------
1 files changed, 41 insertions(+), 56 deletions(-)
diff --git a/drivers/media/common/tuners/mt2063.c
b/drivers/media/common/tuners/mt2063.c
index e5d96e9..2a2cce3 100644
--- a/drivers/media/common/tuners/mt2063.c
+++ b/drivers/media/common/tuners/mt2063.c
@@ -261,22 +261,63 @@ static int mt2063_tune(struct mt2063_state *state)
return 0;
}
+static int mt2063_set_analog_params(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
+ struct mt2063_state *state = fe->tuner_priv;
+ u32 freq, bw;
+ int ret = 0;
+ dprintk(1, "\n");
+ mutex_lock(&state->lock);
+ /* open gate */
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ /* all calculation is in kHz */
+ freq = params->frequency / 1000;
+ switch(params->mode) {
+ case V4L2_TUNER_RADIO:
+ state->mode = MT2063_OFFAIR_ANALOG;
+ state->if2 = 38900;
+ bw = 8000; /* TODO */
break;
+ case V4L2_TUNER_ANALOG_TV:
+ state->mode = MT2063_CABLE_ANALOG;
+ state->if2 = 38900;
+ if (params->std & ~V4L2_STD_MN)
+ bw = 6000;
+ else if (params->std & V4L2_STD_PAL_G)
+ bw = 7000;
+ else
+ bw = 8000;
break;
default:
+ ret = -EINVAL;
+ goto err;
}
+ state->frequency = freq;
+ state->bw = bw;
+ dprintk(2, "Set input frequency to %d kHz.\n", freq);
+ ret = mt2063_set_mode(state, state->mode);
+ if (ret < 0)
+ goto err;
+ ret = mt2063_tune(state);
+err:
+ /* close gate */
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+ mutex_unlock(&state->lock);
+ return ret;
}
{
@@ -500,68 +541,12 @@ static int mt2063_release(struct dvb_frontend *fe)
return 0;
}
-static int mt2063_set_analog_params(struct dvb_frontend *fe,
- struct analog_parameters *params)
{
struct mt2063_state *state = fe->tuner_priv;
- s32 pict_car;
- s32 pict2chanb_vsb;
- s32 ch_bw;
- s32 if_mid;
- s32 rcvr_mode;
- int status;
-
- dprintk(2, "\n");
-
- if (!state->init) {
- status = mt2063_init(fe);
- if (status < 0)
- return status;
- }
-
- switch (params->mode) {
- case V4L2_TUNER_RADIO:
- pict_car = 38900000;
- ch_bw = 8000000;
- pict2chanb_vsb = -(ch_bw / 2);
- rcvr_mode = MT2063_OFFAIR_ANALOG;
- break;
- case V4L2_TUNER_ANALOG_TV:
- rcvr_mode = MT2063_CABLE_ANALOG;
- if (params->std & ~V4L2_STD_MN) {
- pict_car = 38900000;
- ch_bw = 6000000;
- pict2chanb_vsb = -1250000;
- } else if (params->std & V4L2_STD_PAL_G) {
- pict_car = 38900000;
- ch_bw = 7000000;
- pict2chanb_vsb = -1250000;
- } else { /* PAL/SECAM standards */
- pict_car = 38900000;
- ch_bw = 8000000;
- pict2chanb_vsb = -1250000;
- }
- break;
- default:
- return -EINVAL;
- }
- if_mid = pict_car - (pict2chanb_vsb + (ch_bw / 2));
- state->AS_Data.f_LO2_Step = 125000; /* FIXME: probably 5000 for FM
*/
- state->AS_Data.f_out = if_mid;
- state->AS_Data.f_out_bw = ch_bw + 750000;
- status = MT2063_SetReceiverMode(state, rcvr_mode);
- if (status < 0)
- return status;
- dprintk(1, "Tuning to frequency: %d, bandwidth %d, foffset %d\n",
- params->frequency, ch_bw, pict2chanb_vsb);
- status = MT2063_Tune(state, (params->frequency + (pict2chanb_vsb +
(ch_bw / 2))));
- if (status < 0)
- return status;
- state->frequency = params->frequency;
return 0;
}
--
1.7.7.6
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