Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 433 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/cxd2820r_t2.c b/drivers/media/dvb-frontends/cxd2820r_t2.c
new file mode 100644
index 000000000..f330ec171
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2820r_t2.c
@@ -0,0 +1,433 @@
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License along
+ *    with this program; if not, write to the Free Software Foundation, Inc.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#include "cxd2820r_priv.h"
+
+int cxd2820r_set_frontend_t2(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, bw_i;
+	unsigned int utmp;
+	u32 if_frequency;
+	u8 buf[3], bw_param;
+	u8 bw_params1[][5] = {
+		{ 0x1c, 0xb3, 0x33, 0x33, 0x33 }, /* 5 MHz */
+		{ 0x17, 0xea, 0xaa, 0xaa, 0xaa }, /* 6 MHz */
+		{ 0x14, 0x80, 0x00, 0x00, 0x00 }, /* 7 MHz */
+		{ 0x11, 0xf0, 0x00, 0x00, 0x00 }, /* 8 MHz */
+	};
+	struct reg_val_mask tab[] = {
+		{ 0x00080, 0x02, 0xff },
+		{ 0x00081, 0x20, 0xff },
+		{ 0x00085, 0x07, 0xff },
+		{ 0x00088, 0x01, 0xff },
+		{ 0x02069, 0x01, 0xff },
+
+		{ 0x0207f, 0x2a, 0xff },
+		{ 0x02082, 0x0a, 0xff },
+		{ 0x02083, 0x0a, 0xff },
+		{ 0x020cb, priv->if_agc_polarity << 6, 0x40 },
+		{ 0x02070, priv->ts_mode, 0xff },
+		{ 0x02071, !priv->ts_clk_inv << 6, 0x40 },
+		{ 0x020b5, priv->spec_inv << 4, 0x10 },
+		{ 0x02567, 0x07, 0x0f },
+		{ 0x02569, 0x03, 0x03 },
+		{ 0x02595, 0x1a, 0xff },
+		{ 0x02596, 0x50, 0xff },
+		{ 0x02a8c, 0x00, 0xff },
+		{ 0x02a8d, 0x34, 0xff },
+		{ 0x02a45, 0x06, 0x07 },
+		{ 0x03f10, 0x0d, 0xff },
+		{ 0x03f11, 0x02, 0xff },
+		{ 0x03f12, 0x01, 0xff },
+		{ 0x03f23, 0x2c, 0xff },
+		{ 0x03f51, 0x13, 0xff },
+		{ 0x03f52, 0x01, 0xff },
+		{ 0x03f53, 0x00, 0xff },
+		{ 0x027e6, 0x14, 0xff },
+		{ 0x02786, 0x02, 0x07 },
+		{ 0x02787, 0x40, 0xe0 },
+		{ 0x027ef, 0x10, 0x18 },
+	};
+
+	dev_dbg(&client->dev,
+		"delivery_system=%d modulation=%d frequency=%u bandwidth_hz=%u inversion=%d stream_id=%u\n",
+		c->delivery_system, c->modulation, c->frequency,
+		c->bandwidth_hz, c->inversion, c->stream_id);
+
+	switch (c->bandwidth_hz) {
+	case 5000000:
+		bw_i = 0;
+		bw_param = 3;
+		break;
+	case 6000000:
+		bw_i = 1;
+		bw_param = 2;
+		break;
+	case 7000000:
+		bw_i = 2;
+		bw_param = 1;
+		break;
+	case 8000000:
+		bw_i = 3;
+		bw_param = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* program tuner */
+	if (fe->ops.tuner_ops.set_params)
+		fe->ops.tuner_ops.set_params(fe);
+
+	if (priv->delivery_system != SYS_DVBT2) {
+		ret = cxd2820r_wr_reg_val_mask_tab(priv, tab, ARRAY_SIZE(tab));
+		if (ret)
+			goto error;
+	}
+
+	priv->delivery_system = SYS_DVBT2;
+
+	/* program IF frequency */
+	if (fe->ops.tuner_ops.get_if_frequency) {
+		ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
+		if (ret)
+			goto error;
+		dev_dbg(&client->dev, "if_frequency=%u\n", if_frequency);
+	} else {
+		ret = -EINVAL;
+		goto error;
+	}
+
+	utmp = DIV_ROUND_CLOSEST_ULL((u64)if_frequency * 0x1000000, CXD2820R_CLK);
+	buf[0] = (utmp >> 16) & 0xff;
+	buf[1] = (utmp >>  8) & 0xff;
+	buf[2] = (utmp >>  0) & 0xff;
+	ret = regmap_bulk_write(priv->regmap[0], 0x20b6, buf, 3);
+	if (ret)
+		goto error;
+
+	/* PLP filtering */
+	if (c->stream_id > 255) {
+		dev_dbg(&client->dev, "disable PLP filtering\n");
+		ret = regmap_write(priv->regmap[0], 0x23ad, 0x00);
+		if (ret)
+			goto error;
+	} else {
+		dev_dbg(&client->dev, "enable PLP filtering\n");
+		ret = regmap_write(priv->regmap[0], 0x23af, c->stream_id & 0xff);
+		if (ret)
+			goto error;
+		ret = regmap_write(priv->regmap[0], 0x23ad, 0x01);
+		if (ret)
+			goto error;
+	}
+
+	ret = regmap_bulk_write(priv->regmap[0], 0x209f, bw_params1[bw_i], 5);
+	if (ret)
+		goto error;
+
+	ret = regmap_update_bits(priv->regmap[0], 0x20d7, 0xc0, bw_param << 6);
+	if (ret)
+		goto error;
+
+	ret = regmap_write(priv->regmap[0], 0x00ff, 0x08);
+	if (ret)
+		goto error;
+
+	ret = regmap_write(priv->regmap[0], 0x00fe, 0x01);
+	if (ret)
+		goto error;
+
+	return ret;
+error:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+
+}
+
+int cxd2820r_get_frontend_t2(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];
+
+	dev_dbg(&client->dev, "\n");
+
+	ret = regmap_bulk_read(priv->regmap[0], 0x205c, buf, 2);
+	if (ret)
+		goto error;
+
+	switch ((buf[0] >> 0) & 0x07) {
+	case 0:
+		c->transmission_mode = TRANSMISSION_MODE_2K;
+		break;
+	case 1:
+		c->transmission_mode = TRANSMISSION_MODE_8K;
+		break;
+	case 2:
+		c->transmission_mode = TRANSMISSION_MODE_4K;
+		break;
+	case 3:
+		c->transmission_mode = TRANSMISSION_MODE_1K;
+		break;
+	case 4:
+		c->transmission_mode = TRANSMISSION_MODE_16K;
+		break;
+	case 5:
+		c->transmission_mode = TRANSMISSION_MODE_32K;
+		break;
+	}
+
+	switch ((buf[1] >> 4) & 0x07) {
+	case 0:
+		c->guard_interval = GUARD_INTERVAL_1_32;
+		break;
+	case 1:
+		c->guard_interval = GUARD_INTERVAL_1_16;
+		break;
+	case 2:
+		c->guard_interval = GUARD_INTERVAL_1_8;
+		break;
+	case 3:
+		c->guard_interval = GUARD_INTERVAL_1_4;
+		break;
+	case 4:
+		c->guard_interval = GUARD_INTERVAL_1_128;
+		break;
+	case 5:
+		c->guard_interval = GUARD_INTERVAL_19_128;
+		break;
+	case 6:
+		c->guard_interval = GUARD_INTERVAL_19_256;
+		break;
+	}
+
+	ret = regmap_bulk_read(priv->regmap[0], 0x225b, buf, 2);
+	if (ret)
+		goto error;
+
+	switch ((buf[0] >> 0) & 0x07) {
+	case 0:
+		c->fec_inner = FEC_1_2;
+		break;
+	case 1:
+		c->fec_inner = FEC_3_5;
+		break;
+	case 2:
+		c->fec_inner = FEC_2_3;
+		break;
+	case 3:
+		c->fec_inner = FEC_3_4;
+		break;
+	case 4:
+		c->fec_inner = FEC_4_5;
+		break;
+	case 5:
+		c->fec_inner = FEC_5_6;
+		break;
+	}
+
+	switch ((buf[1] >> 0) & 0x07) {
+	case 0:
+		c->modulation = QPSK;
+		break;
+	case 1:
+		c->modulation = QAM_16;
+		break;
+	case 2:
+		c->modulation = QAM_64;
+		break;
+	case 3:
+		c->modulation = QAM_256;
+		break;
+	}
+
+	ret = regmap_read(priv->regmap[0], 0x20b5, &utmp);
+	if (ret)
+		goto error;
+
+	switch ((utmp >> 4) & 0x01) {
+	case 0:
+		c->inversion = INVERSION_OFF;
+		break;
+	case 1:
+		c->inversion = INVERSION_ON;
+		break;
+	}
+
+	return ret;
+error:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+int cxd2820r_read_status_t2(struct dvb_frontend *fe, enum fe_status *status)
+{
+	struct cxd2820r_priv *priv = fe->demodulator_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct i2c_client *client = priv->client[0];
+	int ret;
+	unsigned int utmp, utmp1, utmp2;
+	u8 buf[4];
+
+	/* Lock detection */
+	ret = regmap_bulk_read(priv->regmap[0], 0x2010, &buf[0], 1);
+	if (ret)
+		goto error;
+
+	utmp1 = (buf[0] >> 0) & 0x07;
+	utmp2 = (buf[0] >> 5) & 0x01;
+
+	if (utmp1 == 6 && utmp2 == 1) {
+		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+			  FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+	} else if (utmp1 == 6 || utmp2 == 1) {
+		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+			  FE_HAS_VITERBI | FE_HAS_SYNC;
+	} else {
+		*status = 0;
+	}
+
+	dev_dbg(&client->dev, "status=%02x raw=%*ph sync=%u ts=%u\n",
+		*status, 1, buf, utmp1, utmp2);
+
+	/* Signal strength */
+	if (*status & FE_HAS_SIGNAL) {
+		unsigned int strength;
+
+		ret = regmap_bulk_read(priv->regmap[0], 0x2026, buf, 2);
+		if (ret)
+			goto error;
+
+		utmp = buf[0] << 8 | buf[1] << 0;
+		utmp = ~utmp & 0x0fff;
+		/* Scale value to 0x0000-0xffff */
+		strength = utmp << 4 | utmp >> 8;
+
+		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;
+	}
+
+	/* CNR */
+	if (*status & FE_HAS_VITERBI) {
+		unsigned int cnr;
+
+		ret = regmap_bulk_read(priv->regmap[0], 0x2028, buf, 2);
+		if (ret)
+			goto error;
+
+		utmp = buf[0] << 8 | buf[1] << 0;
+		utmp = utmp & 0x0fff;
+		#define CXD2820R_LOG10_8_24 15151336 /* log10(8) << 24 */
+		if (utmp)
+			cnr = div_u64((u64)(intlog10(utmp)
+				      - CXD2820R_LOG10_8_24) * 10000,
+				      (1 << 24));
+		else
+			cnr = 0;
+
+		c->cnr.len = 1;
+		c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+		c->cnr.stat[0].svalue = cnr;
+	} else {
+		c->cnr.len = 1;
+		c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	}
+
+	/* BER */
+	if (*status & FE_HAS_SYNC) {
+		unsigned int post_bit_error;
+
+		ret = regmap_bulk_read(priv->regmap[0], 0x2039, buf, 4);
+		if (ret)
+			goto error;
+
+		if ((buf[0] >> 4) & 0x01) {
+			post_bit_error = buf[0] << 24 | buf[1] << 16 |
+					 buf[2] << 8 | buf[3] << 0;
+			post_bit_error &= 0x0fffffff;
+		} else {
+			post_bit_error = 0;
+		}
+
+		priv->post_bit_error += post_bit_error;
+
+		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;
+	}
+
+	return ret;
+error:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+int cxd2820r_sleep_t2(struct dvb_frontend *fe)
+{
+	struct cxd2820r_priv *priv = fe->demodulator_priv;
+	struct i2c_client *client = priv->client[0];
+	int ret;
+	struct reg_val_mask tab[] = {
+		{ 0x000ff, 0x1f, 0xff },
+		{ 0x00085, 0x00, 0xff },
+		{ 0x00088, 0x01, 0xff },
+		{ 0x02069, 0x00, 0xff },
+		{ 0x00081, 0x00, 0xff },
+		{ 0x00080, 0x00, 0xff },
+	};
+
+	dev_dbg(&client->dev, "\n");
+
+	ret = cxd2820r_wr_reg_val_mask_tab(priv, tab, ARRAY_SIZE(tab));
+	if (ret)
+		goto error;
+
+	priv->delivery_system = SYS_UNDEFINED;
+
+	return ret;
+error:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+int cxd2820r_get_tune_settings_t2(struct dvb_frontend *fe,
+	struct dvb_frontend_tune_settings *s)
+{
+	s->min_delay_ms = 1500;
+	s->step_size = fe->ops.info.frequency_stepsize_hz * 2;
+	s->max_drift = (fe->ops.info.frequency_stepsize_hz * 2) + 1;
+
+	return 0;
+}