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-rw-r--r--drivers/media/dvb/frontends/cx24116.c89
1 files changed, 68 insertions, 21 deletions
diff --git a/drivers/media/dvb/frontends/cx24116.c b/drivers/media/dvb/frontends/cx24116.c
index 02ed4ef79c67..808ef2995d80 100644
--- a/drivers/media/dvb/frontends/cx24116.c
+++ b/drivers/media/dvb/frontends/cx24116.c
@@ -84,7 +84,8 @@ static int debug = 0;
#define CX24116_ROLLOFF_035 (0x02)
/* pilot bit */
-#define CX24116_PILOT (0x40)
+#define CX24116_PILOT_OFF (0x00)
+#define CX24116_PILOT_ON (0x40)
/* signal status */
#define CX24116_HAS_SIGNAL (0x01)
@@ -148,6 +149,7 @@ struct cx24116_tuning
u8 fec_val;
u8 fec_mask;
u8 inversion_val;
+ u8 pilot_val;
u8 rolloff_val;
};
@@ -1121,25 +1123,62 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct cx24116_cmd cmd;
fe_status_t tunerstat;
- int i, status, ret, retune = 1;
+ int i, status, ret, retune;
dprintk("%s()\n",__func__);
- state->dnxt.modulation = c->modulation;
- state->dnxt.frequency = c->frequency;
-
switch(c->delivery_system) {
case SYS_DVBS:
dprintk("%s: DVB-S delivery system selected\n",__func__);
- state->dnxt.pilot = PILOT_OFF;
+
+ /* Only QPSK is supported for DVB-S */
+ if(c->modulation != QPSK) {
+ dprintk("%s: unsupported modulation selected (%d)\n",
+ __func__, c->modulation);
+ return -EOPNOTSUPP;
+ }
+
+ /* Pilot doesn't exist in DVB-S, turn bit off */
+ state->dnxt.pilot_val = CX24116_PILOT_OFF;
+ retune = 1;
+
+ /* DVB-S only supports 0.35 */
+ if(c->rolloff != ROLLOFF_35) {
+ dprintk("%s: unsupported rolloff selected (%d)\n",
+ __func__, c->rolloff);
+ return -EOPNOTSUPP;
+ }
state->dnxt.rolloff_val = CX24116_ROLLOFF_035;
- state->dnxt.rolloff = c->rolloff;
break;
+
case SYS_DVBS2:
dprintk("%s: DVB-S2 delivery system selected\n",__func__);
- if(c->pilot == PILOT_AUTO)
- retune++;
- state->dnxt.pilot = c->pilot;
+
+ /*
+ * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2,
+ * but not hardware auto detection
+ */
+ if(c->modulation != _8PSK && c->modulation != NBC_QPSK) {
+ dprintk("%s: unsupported modulation selected (%d)\n",
+ __func__, c->modulation);
+ return -EOPNOTSUPP;
+ }
+
+ switch(c->pilot) {
+ case PILOT_AUTO: /* Not supported but emulated */
+ retune = 2; /* Fall-through */
+ case PILOT_OFF:
+ state->dnxt.pilot_val = CX24116_PILOT_OFF;
+ break;
+ case PILOT_ON:
+ state->dnxt.pilot_val = CX24116_PILOT_ON;
+ break;
+ default:
+ dprintk("%s: unsupported pilot mode selected (%d)\n",
+ __func__, c->pilot);
+ return -EOPNOTSUPP;
+ }
+
switch(c->rolloff) {
case ROLLOFF_20:
state->dnxt.rolloff_val= CX24116_ROLLOFF_020;
@@ -1150,20 +1189,28 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
case ROLLOFF_35:
state->dnxt.rolloff_val= CX24116_ROLLOFF_035;
break;
- case ROLLOFF_AUTO:
+ case ROLLOFF_AUTO: /* Rolloff must be explicit */
+ default:
+ dprintk("%s: unsupported rolloff selected (%d)\n",
+ __func__, c->rolloff);
return -EOPNOTSUPP;
}
- state->dnxt.rolloff = c->rolloff;
break;
+
default:
dprintk("%s: unsupported delivery system selected (%d)\n",
__func__, c->delivery_system);
return -EOPNOTSUPP;
}
+ state->dnxt.modulation = c->modulation;
+ state->dnxt.frequency = c->frequency;
+ state->dnxt.pilot = c->pilot;
+ state->dnxt.rolloff = c->rolloff;
if ((ret = cx24116_set_inversion(state, c->inversion)) != 0)
return ret;
+ /* FEC_NONE/AUTO for DVB-S2 is not supported and detected here */
if ((ret = cx24116_set_fec(state, c->modulation, c->fec_inner)) != 0)
return ret;
@@ -1173,10 +1220,13 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
/* discard the 'current' tuning parameters and prepare to tune */
cx24116_clone_params(fe);
- dprintk("%s: retune = %d\n", __func__, retune);
- dprintk("%s: rolloff = %d\n", __func__, state->dcur.rolloff);
- dprintk("%s: pilot = %d\n", __func__, state->dcur.pilot);
+ dprintk("%s: modulation = %d\n", __func__, state->dcur.modulation);
dprintk("%s: frequency = %d\n", __func__, state->dcur.frequency);
+ dprintk("%s: pilot = %d (val = 0x%02x)\n", __func__,
+ state->dcur.pilot, state->dcur.pilot_val);
+ dprintk("%s: retune = %d\n", __func__, retune);
+ dprintk("%s: rolloff = %d (val = 0x%02x)\n", __func__,
+ state->dcur.rolloff, state->dcur.rolloff_val);
dprintk("%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate);
dprintk("%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__,
state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val);
@@ -1210,11 +1260,8 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
/* Automatic Inversion */
cmd.args[0x06] = state->dcur.inversion_val;
- /* Modulation / FEC & Pilot Off */
- cmd.args[0x07] = state->dcur.fec_val;
-
- if (state->dcur.pilot == PILOT_ON)
- cmd.args[0x07] |= CX24116_PILOT;
+ /* Modulation / FEC / Pilot */
+ cmd.args[0x07] = state->dcur.fec_val | state->dcur.pilot_val;
cmd.args[0x08] = CX24116_SEARCH_RANGE_KHZ >> 8;
cmd.args[0x09] = CX24116_SEARCH_RANGE_KHZ & 0xff;
@@ -1277,7 +1324,7 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
/* Toggle pilot bit when in auto-pilot */
if(state->dcur.pilot == PILOT_AUTO)
- cmd.args[0x07] ^= CX24116_PILOT;
+ cmd.args[0x07] ^= CX24116_PILOT_ON;
}
while(--retune);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 22:42:13 +0000