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@@ -180,7 +180,12 @@ static void nxt6000_setup(struct dvb_frontend* fe)
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nxt6000_writereg(state, RS_COR_SYNC_PARAM, SYNC_PARAM);
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nxt6000_writereg(state, BER_CTRL, /*(1 << 2) | */ (0x01 << 1) | 0x01);
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- nxt6000_writereg(state, VIT_COR_CTL, VIT_COR_RESYNC);
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+ nxt6000_writereg(state, VIT_BERTIME_2, 0x00); // BER Timer = 0x000200 * 256 = 131072 bits
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+ nxt6000_writereg(state, VIT_BERTIME_1, 0x02); //
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+ nxt6000_writereg(state, VIT_BERTIME_0, 0x00); //
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+ nxt6000_writereg(state, VIT_COR_INTEN, 0x98); // Enable BER interrupts
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+ nxt6000_writereg(state, VIT_COR_CTL, 0x82); // Enable BER measurement
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+ nxt6000_writereg(state, VIT_COR_CTL, VIT_COR_RESYNC | 0x02 );
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nxt6000_writereg(state, OFDM_COR_CTL, (0x01 << 5) | (nxt6000_readreg(state, OFDM_COR_CTL) & 0x0F));
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nxt6000_writereg(state, OFDM_COR_MODEGUARD, FORCEMODE8K | 0x02);
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nxt6000_writereg(state, OFDM_AGC_CTL, AGCLAST | INITIAL_AGC_BW);
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@@ -486,6 +491,40 @@ static void nxt6000_release(struct dvb_frontend* fe)
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kfree(state);
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}
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+static int nxt6000_read_snr(struct dvb_frontend* fe, u16* snr)
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+{
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+ struct nxt6000_state* state = (struct nxt6000_state*) fe->demodulator_priv;
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+
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+ *snr = nxt6000_readreg( state, OFDM_CHC_SNR) / 8;
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+
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+ return 0;
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+}
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+
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+static int nxt6000_read_ber(struct dvb_frontend* fe, u32* ber)
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+{
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+ struct nxt6000_state* state = (struct nxt6000_state*) fe->demodulator_priv;
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+
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+ nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18 );
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+
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+ *ber = (nxt6000_readreg( state, VIT_BER_1 ) << 8 ) |
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+ nxt6000_readreg( state, VIT_BER_0 );
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+
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+ nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18); // Clear BER Done interrupts
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+
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+ return 0;
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+}
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+
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+static int nxt6000_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
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+{
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+ struct nxt6000_state* state = (struct nxt6000_state*) fe->demodulator_priv;
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+
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+ *signal_strength = (short) (511 -
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+ (nxt6000_readreg(state, AGC_GAIN_1) +
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+ ((nxt6000_readreg(state, AGC_GAIN_2) & 0x03) << 8)));
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+
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+ return 0;
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+}
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+
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static struct dvb_frontend_ops nxt6000_ops;
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struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
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@@ -542,6 +581,9 @@ static struct dvb_frontend_ops nxt6000_ops = {
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.set_frontend = nxt6000_set_frontend,
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.read_status = nxt6000_read_status,
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+ .read_ber = nxt6000_read_ber,
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+ .read_signal_strength = nxt6000_read_signal_strength,
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+ .read_snr = nxt6000_read_snr,
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};
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module_param(debug, int, 0644);
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