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path: root/drivers/media/dvb/frontends/af9013.c
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Diffstat (limited to 'drivers/media/dvb/frontends/af9013.c')
-rw-r--r--drivers/media/dvb/frontends/af9013.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c
index 136c5863d81..12e018b4107 100644
--- a/drivers/media/dvb/frontends/af9013.c
+++ b/drivers/media/dvb/frontends/af9013.c
@@ -527,6 +527,10 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
u8 i, buf[3] = {0, 0, 0};
*auto_mode = 0; /* set if parameters are requested to auto set */
+ /* Try auto-detect transmission parameters in case of AUTO requested or
+ garbage parameters given by application for compatibility.
+ MPlayer seems to provide garbage parameters currently. */
+
switch (params->transmission_mode) {
case TRANSMISSION_MODE_AUTO:
*auto_mode = 1;
@@ -536,7 +540,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
buf[0] |= (1 << 0);
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid transmission_mode\n", __func__);
+ *auto_mode = 1;
}
switch (params->guard_interval) {
@@ -554,7 +559,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
buf[0] |= (3 << 2);
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid guard_interval\n", __func__);
+ *auto_mode = 1;
}
switch (params->hierarchy_information) {
@@ -572,7 +578,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
buf[0] |= (3 << 4);
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid hierarchy_information\n", __func__);
+ *auto_mode = 1;
};
switch (params->constellation) {
@@ -587,7 +594,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
buf[1] |= (2 << 6);
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid constellation\n", __func__);
+ *auto_mode = 1;
}
/* Use HP. How and which case we can switch to LP? */
@@ -611,7 +619,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
buf[2] |= (4 << 0);
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid code_rate_HP\n", __func__);
+ *auto_mode = 1;
}
switch (params->code_rate_LP) {
@@ -638,7 +647,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
if (params->hierarchy_information == HIERARCHY_AUTO)
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid code_rate_LP\n", __func__);
+ *auto_mode = 1;
}
switch (params->bandwidth) {
@@ -651,7 +661,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
buf[1] |= (2 << 2);
break;
default:
- return -EINVAL;
+ deb_info("%s: invalid bandwidth\n", __func__);
+ buf[1] |= (2 << 2); /* cannot auto-detect BW, try 8 MHz */
}
/* program */