forked from Minki/linux
media: af9013: wrap dvbv3 statistics via dvbv5
Driver has calculated dvbv5 statistics, so use those as a base for legacy dvbv3 statistics. Wrap and convert needed values to dvbv3, remove old dvbv3 statistic implementations. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Antti Palosaari
Mauro Carvalho Chehab
parent
233f3ef71c
commit
b911fc89e1
@ -33,12 +33,6 @@ struct af9013_state {
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u8 api_version[4];
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u8 gpio[4];
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/* tuner/demod RF and IF AGC limits used for signal strength calc */
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u8 signal_strength_en, rf_50, rf_80, if_50, if_80;
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u16 signal_strength;
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u32 ber;
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u32 ucblocks;
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u16 snr;
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u32 bandwidth_hz;
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enum fe_status fe_status;
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/* RF and IF AGC limits used for signal strength calc */
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@ -48,10 +42,12 @@ struct af9013_state {
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unsigned long strength_jiffies;
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unsigned long cnr_jiffies;
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unsigned long ber_ucb_jiffies;
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u16 dvbv3_snr;
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u16 dvbv3_strength;
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u32 dvbv3_ber;
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u32 dvbv3_ucblocks;
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bool first_tune;
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bool i2c_gate_state;
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unsigned int statistics_step:3;
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struct delayed_work statistics_work;
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};
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static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval)
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@ -106,228 +102,6 @@ err:
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return ret;
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}
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static int af9013_statistics_ber_unc_start(struct dvb_frontend *fe)
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{
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struct af9013_state *state = fe->demodulator_priv;
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struct i2c_client *client = state->client;
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int ret;
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dev_dbg(&client->dev, "\n");
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/* reset and start BER counter */
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ret = regmap_update_bits(state->regmap, 0xd391, 0x10, 0x10);
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if (ret)
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goto err;
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return 0;
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err:
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dev_dbg(&client->dev, "failed %d\n", ret);
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return ret;
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}
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static int af9013_statistics_ber_unc_result(struct dvb_frontend *fe)
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{
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struct af9013_state *state = fe->demodulator_priv;
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struct i2c_client *client = state->client;
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int ret;
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unsigned int utmp;
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u8 buf[5];
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dev_dbg(&client->dev, "\n");
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/* check if error bit count is ready */
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ret = regmap_read(state->regmap, 0xd391, &utmp);
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if (ret)
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goto err;
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if (!((utmp >> 4) & 0x01)) {
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dev_dbg(&client->dev, "not ready\n");
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return 0;
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}
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ret = regmap_bulk_read(state->regmap, 0xd387, buf, 5);
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if (ret)
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goto err;
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state->ber = (buf[2] << 16) | (buf[1] << 8) | buf[0];
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state->ucblocks += (buf[4] << 8) | buf[3];
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return 0;
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err:
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dev_dbg(&client->dev, "failed %d\n", ret);
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return ret;
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}
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static int af9013_statistics_snr_start(struct dvb_frontend *fe)
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{
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struct af9013_state *state = fe->demodulator_priv;
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struct i2c_client *client = state->client;
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int ret;
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dev_dbg(&client->dev, "\n");
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/* start SNR meas */
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ret = regmap_update_bits(state->regmap, 0xd2e1, 0x08, 0x08);
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if (ret)
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goto err;
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return 0;
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err:
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dev_dbg(&client->dev, "failed %d\n", ret);
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return ret;
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}
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static int af9013_statistics_snr_result(struct dvb_frontend *fe)
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{
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struct af9013_state *state = fe->demodulator_priv;
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struct i2c_client *client = state->client;
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int ret, i, len;
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unsigned int utmp;
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u8 buf[3];
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u32 snr_val;
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const struct af9013_snr *uninitialized_var(snr_lut);
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dev_dbg(&client->dev, "\n");
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/* check if SNR ready */
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ret = regmap_read(state->regmap, 0xd2e1, &utmp);
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if (ret)
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goto err;
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if (!((utmp >> 3) & 0x01)) {
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dev_dbg(&client->dev, "not ready\n");
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return 0;
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}
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/* read value */
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ret = regmap_bulk_read(state->regmap, 0xd2e3, buf, 3);
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if (ret)
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goto err;
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snr_val = (buf[2] << 16) | (buf[1] << 8) | buf[0];
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/* read current modulation */
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ret = regmap_read(state->regmap, 0xd3c1, &utmp);
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if (ret)
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goto err;
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switch ((utmp >> 6) & 3) {
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case 0:
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len = ARRAY_SIZE(qpsk_snr_lut);
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snr_lut = qpsk_snr_lut;
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break;
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case 1:
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len = ARRAY_SIZE(qam16_snr_lut);
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snr_lut = qam16_snr_lut;
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break;
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case 2:
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len = ARRAY_SIZE(qam64_snr_lut);
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snr_lut = qam64_snr_lut;
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break;
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default:
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goto err;
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}
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for (i = 0; i < len; i++) {
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utmp = snr_lut[i].snr;
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if (snr_val < snr_lut[i].val)
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break;
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}
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state->snr = utmp * 10; /* dB/10 */
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return 0;
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err:
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dev_dbg(&client->dev, "failed %d\n", ret);
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return ret;
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}
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static int af9013_statistics_signal_strength(struct dvb_frontend *fe)
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{
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struct af9013_state *state = fe->demodulator_priv;
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struct i2c_client *client = state->client;
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int ret = 0;
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u8 buf[2], rf_gain, if_gain;
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int signal_strength;
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dev_dbg(&client->dev, "\n");
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if (!state->signal_strength_en)
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return 0;
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ret = regmap_bulk_read(state->regmap, 0xd07c, buf, 2);
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if (ret)
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goto err;
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rf_gain = buf[0];
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if_gain = buf[1];
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signal_strength = (0xffff / \
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(9 * (state->rf_50 + state->if_50) - \
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11 * (state->rf_80 + state->if_80))) * \
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(10 * (rf_gain + if_gain) - \
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11 * (state->rf_80 + state->if_80));
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if (signal_strength < 0)
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signal_strength = 0;
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else if (signal_strength > 0xffff)
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signal_strength = 0xffff;
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state->signal_strength = signal_strength;
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return 0;
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err:
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dev_dbg(&client->dev, "failed %d\n", ret);
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return ret;
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}
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static void af9013_statistics_work(struct work_struct *work)
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{
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struct af9013_state *state = container_of(work,
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struct af9013_state, statistics_work.work);
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unsigned int next_msec;
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/* update only signal strength when demod is not locked */
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if (!(state->fe_status & FE_HAS_LOCK)) {
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state->statistics_step = 0;
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state->ber = 0;
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state->snr = 0;
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}
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switch (state->statistics_step) {
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default:
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state->statistics_step = 0;
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/* fall-through */
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case 0:
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af9013_statistics_signal_strength(&state->fe);
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state->statistics_step++;
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next_msec = 300;
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break;
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case 1:
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af9013_statistics_snr_start(&state->fe);
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state->statistics_step++;
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next_msec = 200;
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break;
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case 2:
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af9013_statistics_ber_unc_start(&state->fe);
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state->statistics_step++;
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next_msec = 1000;
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break;
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case 3:
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af9013_statistics_snr_result(&state->fe);
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state->statistics_step++;
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next_msec = 400;
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break;
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case 4:
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af9013_statistics_ber_unc_result(&state->fe);
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state->statistics_step++;
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next_msec = 100;
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break;
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}
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schedule_delayed_work(&state->statistics_work,
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msecs_to_jiffies(next_msec));
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}
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static int af9013_get_tune_settings(struct dvb_frontend *fe,
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struct dvb_frontend_tune_settings *fesettings)
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{
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@ -858,6 +632,9 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
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stmp1, agc_gain, agc_gain_50dbm, agc_gain_80dbm);
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state->strength_jiffies = jiffies;
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/* Convert [-90, -30] dBm to [0x0000, 0xffff] for dvbv3 */
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utmp1 = clamp(stmp1 + 90000, 0, 60000);
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state->dvbv3_strength = div_u64((u64)utmp1 * 0xffff, 60000);
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c->strength.stat[0].scale = FE_SCALE_DECIBEL;
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c->strength.stat[0].svalue = stmp1;
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@ -939,6 +716,7 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
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dev_dbg(&client->dev, "cnr %u\n", utmp1);
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state->cnr_jiffies = jiffies;
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state->dvbv3_snr = utmp1 / 100;
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c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
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c->cnr.stat[0].svalue = utmp1;
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@ -994,6 +772,8 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
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utmp3, utmp4);
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state->ber_ucb_jiffies = jiffies;
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state->dvbv3_ber = utmp1;
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state->dvbv3_ucblocks += utmp3;
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c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[0].uvalue += utmp1;
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@ -1023,28 +803,36 @@ err:
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static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
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{
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struct af9013_state *state = fe->demodulator_priv;
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*snr = state->snr;
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*snr = state->dvbv3_snr;
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return 0;
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}
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static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
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{
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struct af9013_state *state = fe->demodulator_priv;
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*strength = state->signal_strength;
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*strength = state->dvbv3_strength;
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return 0;
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}
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static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
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{
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struct af9013_state *state = fe->demodulator_priv;
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*ber = state->ber;
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*ber = state->dvbv3_ber;
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return 0;
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}
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static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
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{
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struct af9013_state *state = fe->demodulator_priv;
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*ucblocks = state->ucblocks;
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*ucblocks = state->dvbv3_ucblocks;
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return 0;
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}
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@ -1194,50 +982,7 @@ static int af9013_init(struct dvb_frontend *fe)
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if (ret)
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goto err;
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/* check if we support signal strength */
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if (!state->signal_strength_en) {
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ret = regmap_read(state->regmap, 0x9bee, &utmp);
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if (ret)
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goto err;
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state->signal_strength_en = (utmp >> 0) & 0x01;
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}
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/* read values needed for signal strength calculation */
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if (state->signal_strength_en && !state->rf_50) {
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ret = regmap_bulk_read(state->regmap, 0x9bbd, &state->rf_50, 1);
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if (ret)
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goto err;
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ret = regmap_bulk_read(state->regmap, 0x9bd0, &state->rf_80, 1);
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if (ret)
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goto err;
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ret = regmap_bulk_read(state->regmap, 0x9be2, &state->if_50, 1);
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if (ret)
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goto err;
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ret = regmap_bulk_read(state->regmap, 0x9be4, &state->if_80, 1);
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if (ret)
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goto err;
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}
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/* SNR */
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ret = regmap_write(state->regmap, 0xd2e2, 0x01);
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if (ret)
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goto err;
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/* BER / UCB */
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buf[0] = (10000 >> 0) & 0xff;
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buf[1] = (10000 >> 8) & 0xff;
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ret = regmap_bulk_write(state->regmap, 0xd385, buf, 2);
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if (ret)
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goto err;
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/* enable FEC monitor */
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ret = regmap_update_bits(state->regmap, 0xd392, 0x02, 0x02);
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if (ret)
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goto err;
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state->first_tune = true;
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schedule_delayed_work(&state->statistics_work, msecs_to_jiffies(400));
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return 0;
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err:
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@ -1254,9 +999,6 @@ static int af9013_sleep(struct dvb_frontend *fe)
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dev_dbg(&client->dev, "\n");
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/* stop statistics polling */
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cancel_delayed_work_sync(&state->statistics_work);
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/* disable lock led */
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ret = regmap_update_bits(state->regmap, 0xd730, 0x01, 0x00);
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if (ret)
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@ -1696,7 +1438,6 @@ static int af9013_probe(struct i2c_client *client,
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state->spec_inv = pdata->spec_inv;
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memcpy(&state->api_version, pdata->api_version, sizeof(state->api_version));
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memcpy(&state->gpio, pdata->gpio, sizeof(state->gpio));
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INIT_DELAYED_WORK(&state->statistics_work, af9013_statistics_work);
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state->regmap = regmap_init(&client->dev, ®map_bus, client,
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®map_config);
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if (IS_ERR(state->regmap)) {
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@ -1762,9 +1503,6 @@ static int af9013_remove(struct i2c_client *client)
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dev_dbg(&client->dev, "\n");
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/* Stop statistics polling */
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cancel_delayed_work_sync(&state->statistics_work);
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regmap_exit(state->regmap);
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kfree(state);
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@ -37,11 +37,6 @@ struct af9013_reg_bit {
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u8 val;
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};
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struct af9013_snr {
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u32 val;
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u8 snr;
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};
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struct af9013_coeff {
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u32 clock;
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u32 bandwidth_hz;
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@ -92,69 +87,6 @@ static const struct af9013_coeff coeff_lut[] = {
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0x2d, 0x00, 0x8c, 0x6a, 0xca, 0x01, 0x18, 0xde, 0x17 } },
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};
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/* QPSK SNR lookup table */
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static const struct af9013_snr qpsk_snr_lut[] = {
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{ 0x000000, 0 },
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{ 0x0b4771, 0 },
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{ 0x0c1aed, 1 },
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{ 0x0d0d27, 2 },
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{ 0x0e4d19, 3 },
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{ 0x0e5da8, 4 },
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{ 0x107097, 5 },
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{ 0x116975, 6 },
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{ 0x1252d9, 7 },
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{ 0x131fa4, 8 },
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{ 0x13d5e1, 9 },
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{ 0x148e53, 10 },
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{ 0x15358b, 11 },
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{ 0x15dd29, 12 },
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{ 0x168112, 13 },
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{ 0x170b61, 14 },
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{ 0xffffff, 15 },
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};
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/* QAM16 SNR lookup table */
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static const struct af9013_snr qam16_snr_lut[] = {
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{ 0x000000, 0 },
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{ 0x05eb62, 5 },
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{ 0x05fecf, 6 },
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{ 0x060b80, 7 },
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{ 0x062501, 8 },
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{ 0x064865, 9 },
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{ 0x069604, 10 },
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{ 0x06f356, 11 },
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{ 0x07706a, 12 },
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{ 0x0804d3, 13 },
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{ 0x089d1a, 14 },
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{ 0x093e3d, 15 },
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{ 0x09e35d, 16 },
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{ 0x0a7c3c, 17 },
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{ 0x0afaf8, 18 },
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{ 0x0b719d, 19 },
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{ 0xffffff, 20 },
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};
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/* QAM64 SNR lookup table */
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static const struct af9013_snr qam64_snr_lut[] = {
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{ 0x000000, 0 },
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{ 0x03109b, 12 },
|
||||
{ 0x0310d4, 13 },
|
||||
{ 0x031920, 14 },
|
||||
{ 0x0322d0, 15 },
|
||||
{ 0x0339fc, 16 },
|
||||
{ 0x0364a1, 17 },
|
||||
{ 0x038bcc, 18 },
|
||||
{ 0x03c7d3, 19 },
|
||||
{ 0x0408cc, 20 },
|
||||
{ 0x043bed, 21 },
|
||||
{ 0x048061, 22 },
|
||||
{ 0x04be95, 23 },
|
||||
{ 0x04fa7d, 24 },
|
||||
{ 0x052405, 25 },
|
||||
{ 0x05570d, 26 },
|
||||
{ 0xffffff, 27 },
|
||||
};
|
||||
|
||||
static const struct af9013_reg_bit ofsm_init[] = {
|
||||
{ 0xd73a, 0, 8, 0xa1 },
|
||||
{ 0xd73b, 0, 8, 0x1f },
|
||||
|
||||
Loading…
Reference in New Issue
Block a user