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path: root/drivers/media/dvb-frontends/cxd2820r_c.c
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Diffstat (limited to 'drivers/media/dvb-frontends/cxd2820r_c.c')
-rw-r--r--drivers/media/dvb-frontends/cxd2820r_c.c302
1 files changed, 151 insertions, 151 deletions
diff --git a/drivers/media/dvb-frontends/cxd2820r_c.c b/drivers/media/dvb-frontends/cxd2820r_c.c
index a674a6312c38..d75b0776d5b5 100644
--- a/drivers/media/dvb-frontends/cxd2820r_c.c
+++ b/drivers/media/dvb-frontends/cxd2820r_c.c
@@ -24,12 +24,12 @@
int cxd2820r_set_frontend_c(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int ret, i;
+ int ret;
+ unsigned int utmp;
u8 buf[2];
- u32 if_freq;
- u16 if_ctl;
- u64 num;
+ u32 if_frequency;
struct reg_val_mask tab[] = {
{ 0x00080, 0x01, 0xff },
{ 0x00081, 0x05, 0xff },
@@ -43,25 +43,24 @@ int cxd2820r_set_frontend_c(struct dvb_frontend *fe)
{ 0x10059, 0x50, 0xff },
{ 0x10087, 0x0c, 0x3c },
{ 0x1008b, 0x07, 0xff },
- { 0x1001f, priv->cfg.if_agc_polarity << 7, 0x80 },
- { 0x10070, priv->cfg.ts_mode, 0xff },
- { 0x10071, !priv->cfg.ts_clock_inv << 4, 0x10 },
+ { 0x1001f, priv->if_agc_polarity << 7, 0x80 },
+ { 0x10070, priv->ts_mode, 0xff },
+ { 0x10071, !priv->ts_clk_inv << 4, 0x10 },
};
- dev_dbg(&priv->i2c->dev, "%s: frequency=%d symbol_rate=%d\n", __func__,
- c->frequency, c->symbol_rate);
+ dev_dbg(&client->dev,
+ "delivery_system=%d modulation=%d frequency=%u symbol_rate=%u inversion=%d\n",
+ c->delivery_system, c->modulation, c->frequency,
+ c->symbol_rate, c->inversion);
/* program tuner */
if (fe->ops.tuner_ops.set_params)
fe->ops.tuner_ops.set_params(fe);
if (priv->delivery_system != SYS_DVBC_ANNEX_A) {
- for (i = 0; i < ARRAY_SIZE(tab); i++) {
- ret = cxd2820r_wr_reg_mask(priv, tab[i].reg,
- tab[i].val, tab[i].mask);
- if (ret)
- goto error;
- }
+ ret = cxd2820r_wr_reg_val_mask_tab(priv, tab, ARRAY_SIZE(tab));
+ if (ret)
+ goto error;
}
priv->delivery_system = SYS_DVBC_ANNEX_A;
@@ -69,35 +68,33 @@ int cxd2820r_set_frontend_c(struct dvb_frontend *fe)
/* program IF frequency */
if (fe->ops.tuner_ops.get_if_frequency) {
- ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_freq);
+ ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
if (ret)
goto error;
- } else
- if_freq = 0;
-
- dev_dbg(&priv->i2c->dev, "%s: if_freq=%d\n", __func__, if_freq);
-
- num = if_freq / 1000; /* Hz => kHz */
- num *= 0x4000;
- if_ctl = 0x4000 - DIV_ROUND_CLOSEST_ULL(num, 41000);
- buf[0] = (if_ctl >> 8) & 0x3f;
- buf[1] = (if_ctl >> 0) & 0xff;
+ dev_dbg(&client->dev, "if_frequency=%u\n", if_frequency);
+ } else {
+ ret = -EINVAL;
+ goto error;
+ }
- ret = cxd2820r_wr_regs(priv, 0x10042, buf, 2);
+ utmp = 0x4000 - DIV_ROUND_CLOSEST_ULL((u64)if_frequency * 0x4000, CXD2820R_CLK);
+ buf[0] = (utmp >> 8) & 0xff;
+ buf[1] = (utmp >> 0) & 0xff;
+ ret = regmap_bulk_write(priv->regmap[1], 0x0042, buf, 2);
if (ret)
goto error;
- ret = cxd2820r_wr_reg(priv, 0x000ff, 0x08);
+ ret = regmap_write(priv->regmap[0], 0x00ff, 0x08);
if (ret)
goto error;
- ret = cxd2820r_wr_reg(priv, 0x000fe, 0x01);
+ ret = regmap_write(priv->regmap[0], 0x00fe, 0x01);
if (ret)
goto error;
return ret;
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
@@ -105,20 +102,24 @@ int cxd2820r_get_frontend_c(struct dvb_frontend *fe,
struct dtv_frontend_properties *c)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
int ret;
+ unsigned int utmp;
u8 buf[2];
- ret = cxd2820r_rd_regs(priv, 0x1001a, buf, 2);
+ dev_dbg(&client->dev, "\n");
+
+ ret = regmap_bulk_read(priv->regmap[1], 0x001a, buf, 2);
if (ret)
goto error;
c->symbol_rate = 2500 * ((buf[0] & 0x0f) << 8 | buf[1]);
- ret = cxd2820r_rd_reg(priv, 0x10019, &buf[0]);
+ ret = regmap_read(priv->regmap[1], 0x0019, &utmp);
if (ret)
goto error;
- switch ((buf[0] >> 0) & 0x07) {
+ switch ((utmp >> 0) & 0x07) {
case 0:
c->modulation = QAM_16;
break;
@@ -136,7 +137,7 @@ int cxd2820r_get_frontend_c(struct dvb_frontend *fe,
break;
}
- switch ((buf[0] >> 7) & 0x01) {
+ switch ((utmp >> 7) & 0x01) {
case 0:
c->inversion = INVERSION_OFF;
break;
@@ -147,167 +148,169 @@ int cxd2820r_get_frontend_c(struct dvb_frontend *fe,
return ret;
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
-int cxd2820r_read_ber_c(struct dvb_frontend *fe, u32 *ber)
+int cxd2820r_read_status_c(struct dvb_frontend *fe, enum fe_status *status)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- u8 buf[3], start_ber = 0;
- *ber = 0;
+ unsigned int utmp, utmp1, utmp2;
+ u8 buf[3];
- if (priv->ber_running) {
- ret = cxd2820r_rd_regs(priv, 0x10076, buf, sizeof(buf));
- if (ret)
- goto error;
+ /* Lock detection */
+ ret = regmap_bulk_read(priv->regmap[1], 0x0088, &buf[0], 1);
+ if (ret)
+ goto error;
+ ret = regmap_bulk_read(priv->regmap[1], 0x0073, &buf[1], 1);
+ if (ret)
+ goto error;
- if ((buf[2] >> 7) & 0x01 || (buf[2] >> 4) & 0x01) {
- *ber = (buf[2] & 0x0f) << 16 | buf[1] << 8 | buf[0];
- start_ber = 1;
- }
+ utmp1 = (buf[0] >> 0) & 0x01;
+ utmp2 = (buf[1] >> 3) & 0x01;
+
+ if (utmp1 == 1 && utmp2 == 1) {
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+ FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ } else if (utmp1 == 1 || utmp2 == 1) {
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+ FE_HAS_VITERBI | FE_HAS_SYNC;
} else {
- priv->ber_running = true;
- start_ber = 1;
+ *status = 0;
}
- if (start_ber) {
- /* (re)start BER */
- ret = cxd2820r_wr_reg(priv, 0x10079, 0x01);
- if (ret)
- goto error;
- }
+ dev_dbg(&client->dev, "status=%02x raw=%*ph sync=%u ts=%u\n",
+ *status, 2, buf, utmp1, utmp2);
- return ret;
-error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
- return ret;
-}
+ /* Signal strength */
+ if (*status & FE_HAS_SIGNAL) {
+ unsigned int strength;
-int cxd2820r_read_signal_strength_c(struct dvb_frontend *fe,
- u16 *strength)
-{
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- u8 buf[2];
- u16 tmp;
+ ret = regmap_bulk_read(priv->regmap[1], 0x0049, buf, 2);
+ if (ret)
+ goto error;
- ret = cxd2820r_rd_regs(priv, 0x10049, buf, sizeof(buf));
- if (ret)
- goto error;
+ utmp = buf[0] << 8 | buf[1] << 0;
+ utmp = 511 - sign_extend32(utmp, 9);
+ /* Scale value to 0x0000-0xffff */
+ strength = utmp << 6 | utmp >> 4;
- tmp = (buf[0] & 0x03) << 8 | buf[1];
- tmp = (~tmp & 0x03ff);
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_RELATIVE;
+ c->strength.stat[0].uvalue = strength;
+ } else {
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ }
- if (tmp == 512)
- /* ~no signal */
- tmp = 0;
- else if (tmp > 350)
- tmp = 350;
+ /* CNR */
+ if (*status & FE_HAS_VITERBI) {
+ unsigned int cnr, const_a, const_b;
- /* scale value to 0x0000-0xffff */
- *strength = tmp * 0xffff / (350-0);
+ ret = regmap_read(priv->regmap[1], 0x0019, &utmp);
+ if (ret)
+ goto error;
- return ret;
-error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
- return ret;
-}
+ if (((utmp >> 0) & 0x03) % 2) {
+ const_a = 8750;
+ const_b = 650;
+ } else {
+ const_a = 9500;
+ const_b = 760;
+ }
-int cxd2820r_read_snr_c(struct dvb_frontend *fe, u16 *snr)
-{
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- u8 tmp;
- unsigned int A, B;
- /* report SNR in dB * 10 */
+ ret = regmap_read(priv->regmap[1], 0x004d, &utmp);
+ if (ret)
+ goto error;
- ret = cxd2820r_rd_reg(priv, 0x10019, &tmp);
- if (ret)
- goto error;
+ #define CXD2820R_LOG2_E_24 24204406 /* log2(e) << 24 */
+ if (utmp)
+ cnr = div_u64((u64)(intlog2(const_b) - intlog2(utmp))
+ * const_a, CXD2820R_LOG2_E_24);
+ else
+ cnr = 0;
- if (((tmp >> 0) & 0x03) % 2) {
- A = 875;
- B = 650;
+ c->cnr.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+ c->cnr.stat[0].svalue = cnr;
} else {
- A = 950;
- B = 760;
+ c->cnr.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
- ret = cxd2820r_rd_reg(priv, 0x1004d, &tmp);
- if (ret)
- goto error;
-
- #define CXD2820R_LOG2_E_24 24204406 /* log2(e) << 24 */
- if (tmp)
- *snr = A * (intlog2(B / tmp) >> 5) / (CXD2820R_LOG2_E_24 >> 5)
- / 10;
- else
- *snr = 0;
-
- return ret;
-error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
- return ret;
-}
+ /* BER */
+ if (*status & FE_HAS_SYNC) {
+ unsigned int post_bit_error;
+ bool start_ber;
-int cxd2820r_read_ucblocks_c(struct dvb_frontend *fe, u32 *ucblocks)
-{
- *ucblocks = 0;
- /* no way to read ? */
- return 0;
-}
+ if (priv->ber_running) {
+ ret = regmap_bulk_read(priv->regmap[1], 0x0076, buf, 3);
+ if (ret)
+ goto error;
-int cxd2820r_read_status_c(struct dvb_frontend *fe, enum fe_status *status)
-{
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- u8 buf[2];
- *status = 0;
+ if ((buf[2] >> 7) & 0x01) {
+ post_bit_error = buf[2] << 16 | buf[1] << 8 |
+ buf[0] << 0;
+ post_bit_error &= 0x0fffff;
+ start_ber = true;
+ } else {
+ post_bit_error = 0;
+ start_ber = false;
+ }
+ } else {
+ post_bit_error = 0;
+ start_ber = true;
+ }
- ret = cxd2820r_rd_regs(priv, 0x10088, buf, sizeof(buf));
- if (ret)
- goto error;
+ if (start_ber) {
+ ret = regmap_write(priv->regmap[1], 0x0079, 0x01);
+ if (ret)
+ goto error;
+ priv->ber_running = true;
+ }
- if (((buf[0] >> 0) & 0x01) == 1) {
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
- FE_HAS_VITERBI | FE_HAS_SYNC;
+ priv->post_bit_error += post_bit_error;
- if (((buf[1] >> 3) & 0x01) == 1) {
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
- FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
- }
+ c->post_bit_error.len = 1;
+ c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->post_bit_error.stat[0].uvalue = priv->post_bit_error;
+ } else {
+ c->post_bit_error.len = 1;
+ c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
- dev_dbg(&priv->i2c->dev, "%s: lock=%02x %02x\n", __func__, buf[0],
- buf[1]);
-
return ret;
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
int cxd2820r_init_c(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
int ret;
- ret = cxd2820r_wr_reg(priv, 0x00085, 0x07);
+ dev_dbg(&client->dev, "\n");
+
+ ret = regmap_write(priv->regmap[0], 0x0085, 0x07);
if (ret)
goto error;
return ret;
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
int cxd2820r_sleep_c(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret, i;
+ struct i2c_client *client = priv->client[0];
+ int ret;
struct reg_val_mask tab[] = {
{ 0x000ff, 0x1f, 0xff },
{ 0x00085, 0x00, 0xff },
@@ -316,20 +319,17 @@ int cxd2820r_sleep_c(struct dvb_frontend *fe)
{ 0x00080, 0x00, 0xff },
};
- dev_dbg(&priv->i2c->dev, "%s\n", __func__);
+ dev_dbg(&client->dev, "\n");
priv->delivery_system = SYS_UNDEFINED;
- for (i = 0; i < ARRAY_SIZE(tab); i++) {
- ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, tab[i].val,
- tab[i].mask);
- if (ret)
- goto error;
- }
+ ret = cxd2820r_wr_reg_val_mask_tab(priv, tab, ARRAY_SIZE(tab));
+ if (ret)
+ goto error;
return ret;
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
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