diff options
Diffstat (limited to 'drivers/media/dvb-frontends/mb86a20s.c')
| -rw-r--r-- | drivers/media/dvb-frontends/mb86a20s.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c index d25df75ed40..856374bd367 100644 --- a/drivers/media/dvb-frontends/mb86a20s.c +++ b/drivers/media/dvb-frontends/mb86a20s.c @@ -566,12 +566,13 @@ static u32 isdbt_rate[3][5][4] = { }; static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer, - u32 modulation, u32 fec, u32 interleaving, + u32 modulation, u32 forward_error_correction, + u32 interleaving, u32 segment) { struct mb86a20s_state *state = fe->demodulator_priv; u32 rate; - int m, f, i; + int mod, fec, guard; /* * If modulation/fec/interleaving is not detected, the default is @@ -582,54 +583,54 @@ static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer, case DQPSK: case QPSK: default: - m = 0; + mod = 0; break; case QAM_16: - m = 1; + mod = 1; break; case QAM_64: - m = 2; + mod = 2; break; } - switch (fec) { + switch (forward_error_correction) { default: case FEC_1_2: case FEC_AUTO: - f = 0; + fec = 0; break; case FEC_2_3: - f = 1; + fec = 1; break; case FEC_3_4: - f = 2; + fec = 2; break; case FEC_5_6: - f = 3; + fec = 3; break; case FEC_7_8: - f = 4; + fec = 4; break; } switch (interleaving) { default: case GUARD_INTERVAL_1_4: - i = 0; + guard = 0; break; case GUARD_INTERVAL_1_8: - i = 1; + guard = 1; break; case GUARD_INTERVAL_1_16: - i = 2; + guard = 2; break; case GUARD_INTERVAL_1_32: - i = 3; + guard = 3; break; } /* Samples BER at BER_SAMPLING_RATE seconds */ - rate = isdbt_rate[m][f][i] * segment * BER_SAMPLING_RATE; + rate = isdbt_rate[mod][fec][guard] * segment * BER_SAMPLING_RATE; /* Avoids sampling too quickly or to overflow the register */ if (rate < 256) @@ -639,13 +640,13 @@ static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer, dev_dbg(&state->i2c->dev, "%s: layer %c bitrate: %d kbps; counter = %d (0x%06x)\n", - __func__, 'A' + layer, segment * isdbt_rate[m][f][i]/1000, + __func__, 'A' + layer, + segment * isdbt_rate[mod][fec][guard]/1000, rate, rate); state->estimated_rate[layer] = rate; } - static int mb86a20s_get_frontend(struct dvb_frontend *fe) { struct mb86a20s_state *state = fe->demodulator_priv; |