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kernel_linux
提交 b911fc89 编写于 作者: A Antti Palosaari 提交者： Mauro Carvalho Chehab
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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: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
上级 233f3ef7
隐藏空白更改
内联 并排
Showing with 22 addition and 352 deletion
drivers/media/dvb-frontends/af9013.c
浏览文件 @ b911fc89
......@@ -33,12 +33,6 @@ struct af9013_state {
u8 api_version[4];
u8 gpio[4];
/* tuner/demod RF and IF AGC limits used for signal strength calc */
u8 signal_strength_en, rf_50, rf_80, if_50, if_80;
u16 signal_strength;
u32 ber;
u32 ucblocks;
u16 snr;
u32 bandwidth_hz;
enum fe_status fe_status;
/* RF and IF AGC limits used for signal strength calc */
......@@ -48,10 +42,12 @@ struct af9013_state {
unsigned long strength_jiffies;
unsigned long cnr_jiffies;
unsigned long ber_ucb_jiffies;
u16 dvbv3_snr;
u16 dvbv3_strength;
u32 dvbv3_ber;
u32 dvbv3_ucblocks;
bool first_tune;
bool i2c_gate_state;
unsigned int statistics_step:3;
struct delayed_work statistics_work;
};
static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval)
......@@ -106,228 +102,6 @@ static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval)
return ret;
}
static int af9013_statistics_ber_unc_start(struct dvb_frontend *fe)
{
struct af9013_state *state = fe->demodulator_priv;
struct i2c_client *client = state->client;
int ret;
dev_dbg(&client->dev, "\n");
/* reset and start BER counter */
ret = regmap_update_bits(state->regmap, 0xd391, 0x10, 0x10);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed %d\n", ret);
return ret;
}
static int af9013_statistics_ber_unc_result(struct dvb_frontend *fe)
{
struct af9013_state *state = fe->demodulator_priv;
struct i2c_client *client = state->client;
int ret;
unsigned int utmp;
u8 buf[5];
dev_dbg(&client->dev, "\n");
/* check if error bit count is ready */
ret = regmap_read(state->regmap, 0xd391, &utmp);
if (ret)
goto err;
if (!((utmp >> 4) & 0x01)) {
dev_dbg(&client->dev, "not ready\n");
return 0;
}
ret = regmap_bulk_read(state->regmap, 0xd387, buf, 5);
if (ret)
goto err;
state->ber = (buf[2] << 16) | (buf[1] << 8) | buf[0];
state->ucblocks += (buf[4] << 8) | buf[3];
return 0;
err:
dev_dbg(&client->dev, "failed %d\n", ret);
return ret;
}
static int af9013_statistics_snr_start(struct dvb_frontend *fe)
{
struct af9013_state *state = fe->demodulator_priv;
struct i2c_client *client = state->client;
int ret;
dev_dbg(&client->dev, "\n");
/* start SNR meas */
ret = regmap_update_bits(state->regmap, 0xd2e1, 0x08, 0x08);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed %d\n", ret);
return ret;
}
static int af9013_statistics_snr_result(struct dvb_frontend *fe)
{
struct af9013_state *state = fe->demodulator_priv;
struct i2c_client *client = state->client;
int ret, i, len;
unsigned int utmp;
u8 buf[3];
u32 snr_val;
const struct af9013_snr *uninitialized_var(snr_lut);
dev_dbg(&client->dev, "\n");
/* check if SNR ready */
ret = regmap_read(state->regmap, 0xd2e1, &utmp);
if (ret)
goto err;
if (!((utmp >> 3) & 0x01)) {
dev_dbg(&client->dev, "not ready\n");
return 0;
}
/* read value */
ret = regmap_bulk_read(state->regmap, 0xd2e3, buf, 3);
if (ret)
goto err;
snr_val = (buf[2] << 16) | (buf[1] << 8) | buf[0];
/* read current modulation */
ret = regmap_read(state->regmap, 0xd3c1, &utmp);
if (ret)
goto err;
switch ((utmp >> 6) & 3) {
case 0:
len = ARRAY_SIZE(qpsk_snr_lut);
snr_lut = qpsk_snr_lut;
break;
case 1:
len = ARRAY_SIZE(qam16_snr_lut);
snr_lut = qam16_snr_lut;
break;
case 2:
len = ARRAY_SIZE(qam64_snr_lut);
snr_lut = qam64_snr_lut;
break;
default:
goto err;
}
for (i = 0; i < len; i++) {
utmp = snr_lut[i].snr;
if (snr_val < snr_lut[i].val)
break;
}
state->snr = utmp * 10; /* dB/10 */
return 0;
err:
dev_dbg(&client->dev, "failed %d\n", ret);
return ret;
}
static int af9013_statistics_signal_strength(struct dvb_frontend *fe)
{
struct af9013_state *state = fe->demodulator_priv;
struct i2c_client *client = state->client;
int ret = 0;
u8 buf[2], rf_gain, if_gain;
int signal_strength;
dev_dbg(&client->dev, "\n");
if (!state->signal_strength_en)
return 0;
ret = regmap_bulk_read(state->regmap, 0xd07c, buf, 2);
if (ret)
goto err;
rf_gain = buf[0];
if_gain = buf[1];
signal_strength = (0xffff / \
(9 * (state->rf_50 + state->if_50) - \
11 * (state->rf_80 + state->if_80))) * \
(10 * (rf_gain + if_gain) - \
11 * (state->rf_80 + state->if_80));
if (signal_strength < 0)
signal_strength = 0;
else if (signal_strength > 0xffff)
signal_strength = 0xffff;
state->signal_strength = signal_strength;
return 0;
err:
dev_dbg(&client->dev, "failed %d\n", ret);
return ret;
}
static void af9013_statistics_work(struct work_struct *work)
{
struct af9013_state *state = container_of(work,
struct af9013_state, statistics_work.work);
unsigned int next_msec;
/* update only signal strength when demod is not locked */
if (!(state->fe_status & FE_HAS_LOCK)) {
state->statistics_step = 0;
state->ber = 0;
state->snr = 0;
}
switch (state->statistics_step) {
default:
state->statistics_step = 0;
/* fall-through */
case 0:
af9013_statistics_signal_strength(&state->fe);
state->statistics_step++;
next_msec = 300;
break;
case 1:
af9013_statistics_snr_start(&state->fe);
state->statistics_step++;
next_msec = 200;
break;
case 2:
af9013_statistics_ber_unc_start(&state->fe);
state->statistics_step++;
next_msec = 1000;
break;
case 3:
af9013_statistics_snr_result(&state->fe);
state->statistics_step++;
next_msec = 400;
break;
case 4:
af9013_statistics_ber_unc_result(&state->fe);
state->statistics_step++;
next_msec = 100;
break;
}
schedule_delayed_work(&state->statistics_work,
msecs_to_jiffies(next_msec));
}
static int af9013_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *fesettings)
{
......@@ -858,6 +632,9 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
stmp1, agc_gain, agc_gain_50dbm, agc_gain_80dbm);
state->strength_jiffies = jiffies;
/* Convert [-90, -30] dBm to [0x0000, 0xffff] for dvbv3 */
utmp1 = clamp(stmp1 + 90000, 0, 60000);
state->dvbv3_strength = div_u64((u64)utmp1 * 0xffff, 60000);
c->strength.stat[0].scale = FE_SCALE_DECIBEL;
c->strength.stat[0].svalue = stmp1;
......@@ -939,6 +716,7 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
dev_dbg(&client->dev, "cnr %u\n", utmp1);
state->cnr_jiffies = jiffies;
state->dvbv3_snr = utmp1 / 100;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
c->cnr.stat[0].svalue = utmp1;
......@@ -994,6 +772,8 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
utmp3, utmp4);
state->ber_ucb_jiffies = jiffies;
state->dvbv3_ber = utmp1;
state->dvbv3_ucblocks += utmp3;
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[0].uvalue += utmp1;
......@@ -1023,28 +803,36 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status)
static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct af9013_state *state = fe->demodulator_priv;
*snr = state->snr;
*snr = state->dvbv3_snr;
return 0;
}
static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct af9013_state *state = fe->demodulator_priv;
*strength = state->signal_strength;
*strength = state->dvbv3_strength;
return 0;
}
static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct af9013_state *state = fe->demodulator_priv;
*ber = state->ber;
*ber = state->dvbv3_ber;
return 0;
}
static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
struct af9013_state *state = fe->demodulator_priv;
*ucblocks = state->ucblocks;
*ucblocks = state->dvbv3_ucblocks;
return 0;
}
......@@ -1194,50 +982,7 @@ static int af9013_init(struct dvb_frontend *fe)
if (ret)
goto err;
/* check if we support signal strength */
if (!state->signal_strength_en) {
ret = regmap_read(state->regmap, 0x9bee, &utmp);
if (ret)
goto err;
state->signal_strength_en = (utmp >> 0) & 0x01;
}
/* read values needed for signal strength calculation */
if (state->signal_strength_en && !state->rf_50) {
ret = regmap_bulk_read(state->regmap, 0x9bbd, &state->rf_50, 1);
if (ret)
goto err;
ret = regmap_bulk_read(state->regmap, 0x9bd0, &state->rf_80, 1);
if (ret)
goto err;
ret = regmap_bulk_read(state->regmap, 0x9be2, &state->if_50, 1);
if (ret)
goto err;
ret = regmap_bulk_read(state->regmap, 0x9be4, &state->if_80, 1);
if (ret)
goto err;
}
/* SNR */
ret = regmap_write(state->regmap, 0xd2e2, 0x01);
if (ret)
goto err;
/* BER / UCB */
buf[0] = (10000 >> 0) & 0xff;
buf[1] = (10000 >> 8) & 0xff;
ret = regmap_bulk_write(state->regmap, 0xd385, buf, 2);
if (ret)
goto err;
/* enable FEC monitor */
ret = regmap_update_bits(state->regmap, 0xd392, 0x02, 0x02);
if (ret)
goto err;
state->first_tune = true;
schedule_delayed_work(&state->statistics_work, msecs_to_jiffies(400));
return 0;
err:
......@@ -1254,9 +999,6 @@ static int af9013_sleep(struct dvb_frontend *fe)
dev_dbg(&client->dev, "\n");
/* stop statistics polling */
cancel_delayed_work_sync(&state->statistics_work);
/* disable lock led */
ret = regmap_update_bits(state->regmap, 0xd730, 0x01, 0x00);
if (ret)
......@@ -1696,7 +1438,6 @@ static int af9013_probe(struct i2c_client *client,
state->spec_inv = pdata->spec_inv;
memcpy(&state->api_version, pdata->api_version, sizeof(state->api_version));
memcpy(&state->gpio, pdata->gpio, sizeof(state->gpio));
INIT_DELAYED_WORK(&state->statistics_work, af9013_statistics_work);
state->regmap = regmap_init(&client->dev, &regmap_bus, client,
&regmap_config);
if (IS_ERR(state->regmap)) {
......@@ -1762,9 +1503,6 @@ static int af9013_remove(struct i2c_client *client)
dev_dbg(&client->dev, "\n");
/* Stop statistics polling */
cancel_delayed_work_sync(&state->statistics_work);
regmap_exit(state->regmap);
kfree(state);
......
drivers/media/dvb-frontends/af9013_priv.h
浏览文件 @ b911fc89
......@@ -37,11 +37,6 @@ struct af9013_reg_bit {
u8 val;
};
struct af9013_snr {
u32 val;
u8 snr;
};
struct af9013_coeff {
u32 clock;
u32 bandwidth_hz;
......@@ -92,69 +87,6 @@ static const struct af9013_coeff coeff_lut[] = {
0x2d, 0x00, 0x8c, 0x6a, 0xca, 0x01, 0x18, 0xde, 0x17 } },
};
/* QPSK SNR lookup table */
static const struct af9013_snr qpsk_snr_lut[] = {
{ 0x000000, 0 },
{ 0x0b4771, 0 },
{ 0x0c1aed, 1 },
{ 0x0d0d27, 2 },
{ 0x0e4d19, 3 },
{ 0x0e5da8, 4 },
{ 0x107097, 5 },
{ 0x116975, 6 },
{ 0x1252d9, 7 },
{ 0x131fa4, 8 },
{ 0x13d5e1, 9 },
{ 0x148e53, 10 },
{ 0x15358b, 11 },
{ 0x15dd29, 12 },
{ 0x168112, 13 },
{ 0x170b61, 14 },
{ 0xffffff, 15 },
};
/* QAM16 SNR lookup table */
static const struct af9013_snr qam16_snr_lut[] = {
{ 0x000000, 0 },
{ 0x05eb62, 5 },
{ 0x05fecf, 6 },
{ 0x060b80, 7 },
{ 0x062501, 8 },
{ 0x064865, 9 },
{ 0x069604, 10 },
{ 0x06f356, 11 },
{ 0x07706a, 12 },
{ 0x0804d3, 13 },
{ 0x089d1a, 14 },
{ 0x093e3d, 15 },
{ 0x09e35d, 16 },
{ 0x0a7c3c, 17 },
{ 0x0afaf8, 18 },
{ 0x0b719d, 19 },
{ 0xffffff, 20 },
};
/* QAM64 SNR lookup table */
static const struct af9013_snr qam64_snr_lut[] = {
{ 0x000000, 0 },
{ 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 },
......
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