Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 690 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/stv6111.c b/drivers/media/dvb-frontends/stv6111.c
new file mode 100644
index 000000000..0cf460111
--- /dev/null
+++ b/drivers/media/dvb-frontends/stv6111.c
@@ -0,0 +1,690 @@
+/*
+ * Driver for the ST STV6111 tuner
+ *
+ * Copyright (C) 2014 Digital Devices GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <asm/div64.h>
+
+#include "stv6111.h"
+
+#include <media/dvb_frontend.h>
+
+struct stv {
+	struct i2c_adapter *i2c;
+	u8 adr;
+
+	u8 reg[11];
+	u32 ref_freq;
+	u32 frequency;
+};
+
+struct slookup {
+	s16 value;
+	u16 reg_value;
+};
+
+static const struct slookup lnagain_nf_lookup[] = {
+	/* Gain *100dB // Reg */
+	{ 2572,	0 },
+	{ 2575, 1 },
+	{ 2580, 2 },
+	{ 2588, 3 },
+	{ 2596, 4 },
+	{ 2611, 5 },
+	{ 2633, 6 },
+	{ 2664, 7 },
+	{ 2701, 8 },
+	{ 2753, 9 },
+	{ 2816, 10 },
+	{ 2902, 11 },
+	{ 2995, 12 },
+	{ 3104, 13 },
+	{ 3215, 14 },
+	{ 3337, 15 },
+	{ 3492, 16 },
+	{ 3614, 17 },
+	{ 3731, 18 },
+	{ 3861, 19 },
+	{ 3988, 20 },
+	{ 4124, 21 },
+	{ 4253, 22 },
+	{ 4386,	23 },
+	{ 4505,	24 },
+	{ 4623,	25 },
+	{ 4726,	26 },
+	{ 4821,	27 },
+	{ 4903,	28 },
+	{ 4979,	29 },
+	{ 5045,	30 },
+	{ 5102,	31 }
+};
+
+static const struct slookup lnagain_iip3_lookup[] = {
+	/* Gain *100dB // reg */
+	{ 1548,	0 },
+	{ 1552,	1 },
+	{ 1569,	2 },
+	{ 1565,	3 },
+	{ 1577,	4 },
+	{ 1594,	5 },
+	{ 1627,	6 },
+	{ 1656,	7 },
+	{ 1700,	8 },
+	{ 1748,	9 },
+	{ 1805,	10 },
+	{ 1896,	11 },
+	{ 1995,	12 },
+	{ 2113,	13 },
+	{ 2233,	14 },
+	{ 2366,	15 },
+	{ 2543,	16 },
+	{ 2687,	17 },
+	{ 2842,	18 },
+	{ 2999,	19 },
+	{ 3167,	20 },
+	{ 3342,	21 },
+	{ 3507,	22 },
+	{ 3679,	23 },
+	{ 3827,	24 },
+	{ 3970,	25 },
+	{ 4094,	26 },
+	{ 4210,	27 },
+	{ 4308,	28 },
+	{ 4396,	29 },
+	{ 4468,	30 },
+	{ 4535,	31 }
+};
+
+static const struct slookup gain_rfagc_lookup[] = {
+	/* Gain *100dB // reg */
+	{ 4870,	0x3000 },
+	{ 4850,	0x3C00 },
+	{ 4800,	0x4500 },
+	{ 4750,	0x4800 },
+	{ 4700,	0x4B00 },
+	{ 4650,	0x4D00 },
+	{ 4600,	0x4F00 },
+	{ 4550,	0x5100 },
+	{ 4500,	0x5200 },
+	{ 4420,	0x5500 },
+	{ 4316,	0x5800 },
+	{ 4200,	0x5B00 },
+	{ 4119,	0x5D00 },
+	{ 3999,	0x6000 },
+	{ 3950,	0x6100 },
+	{ 3876,	0x6300 },
+	{ 3755,	0x6600 },
+	{ 3641,	0x6900 },
+	{ 3567,	0x6B00 },
+	{ 3425,	0x6F00 },
+	{ 3350,	0x7100 },
+	{ 3236,	0x7400 },
+	{ 3118,	0x7700 },
+	{ 3004,	0x7A00 },
+	{ 2917,	0x7C00 },
+	{ 2776,	0x7F00 },
+	{ 2635,	0x8200 },
+	{ 2516,	0x8500 },
+	{ 2406,	0x8800 },
+	{ 2290,	0x8B00 },
+	{ 2170,	0x8E00 },
+	{ 2073,	0x9100 },
+	{ 1949,	0x9400 },
+	{ 1836,	0x9700 },
+	{ 1712,	0x9A00 },
+	{ 1631,	0x9C00 },
+	{ 1515,	0x9F00 },
+	{ 1400,	0xA200 },
+	{ 1323,	0xA400 },
+	{ 1203,	0xA700 },
+	{ 1091,	0xAA00 },
+	{ 1011,	0xAC00 },
+	{ 904,	0xAF00 },
+	{ 787,	0xB200 },
+	{ 685,	0xB500 },
+	{ 571,	0xB800 },
+	{ 464,	0xBB00 },
+	{ 374,	0xBE00 },
+	{ 275,	0xC200 },
+	{ 181,	0xC600 },
+	{ 102,	0xCC00 },
+	{ 49,	0xD900 }
+};
+
+/*
+ * This table is 6 dB too low comapred to the others (probably created with
+ * a different BB_MAG setting)
+ */
+static const struct slookup gain_channel_agc_nf_lookup[] = {
+	/* Gain *100dB // reg */
+	{ 7082,	0x3000 },
+	{ 7052,	0x4000 },
+	{ 7007,	0x4600 },
+	{ 6954,	0x4A00 },
+	{ 6909,	0x4D00 },
+	{ 6833,	0x5100 },
+	{ 6753,	0x5400 },
+	{ 6659,	0x5700 },
+	{ 6561,	0x5A00 },
+	{ 6472,	0x5C00 },
+	{ 6366,	0x5F00 },
+	{ 6259,	0x6100 },
+	{ 6151,	0x6400 },
+	{ 6026,	0x6700 },
+	{ 5920,	0x6900 },
+	{ 5835,	0x6B00 },
+	{ 5770,	0x6C00 },
+	{ 5681,	0x6E00 },
+	{ 5596,	0x7000 },
+	{ 5503,	0x7200 },
+	{ 5429,	0x7300 },
+	{ 5319,	0x7500 },
+	{ 5220,	0x7700 },
+	{ 5111,	0x7900 },
+	{ 4983,	0x7B00 },
+	{ 4876,	0x7D00 },
+	{ 4755,	0x7F00 },
+	{ 4635,	0x8100 },
+	{ 4499,	0x8300 },
+	{ 4405,	0x8500 },
+	{ 4323,	0x8600 },
+	{ 4233,	0x8800 },
+	{ 4156,	0x8A00 },
+	{ 4038,	0x8C00 },
+	{ 3935,	0x8E00 },
+	{ 3823,	0x9000 },
+	{ 3712,	0x9200 },
+	{ 3601,	0x9500 },
+	{ 3511,	0x9700 },
+	{ 3413,	0x9900 },
+	{ 3309,	0x9B00 },
+	{ 3213,	0x9D00 },
+	{ 3088,	0x9F00 },
+	{ 2992,	0xA100 },
+	{ 2878,	0xA400 },
+	{ 2769,	0xA700 },
+	{ 2645,	0xAA00 },
+	{ 2538,	0xAD00 },
+	{ 2441,	0xB000 },
+	{ 2350,	0xB600 },
+	{ 2237,	0xBA00 },
+	{ 2137,	0xBF00 },
+	{ 2039,	0xC500 },
+	{ 1938,	0xDF00 },
+	{ 1927,	0xFF00 }
+};
+
+static const struct slookup gain_channel_agc_iip3_lookup[] = {
+	/* Gain *100dB // reg */
+	{ 7070,	0x3000 },
+	{ 7028,	0x4000 },
+	{ 7019,	0x4600 },
+	{ 6900,	0x4A00 },
+	{ 6811,	0x4D00 },
+	{ 6763,	0x5100 },
+	{ 6690,	0x5400 },
+	{ 6644,	0x5700 },
+	{ 6617,	0x5A00 },
+	{ 6598,	0x5C00 },
+	{ 6462,	0x5F00 },
+	{ 6348,	0x6100 },
+	{ 6197,	0x6400 },
+	{ 6154,	0x6700 },
+	{ 6098,	0x6900 },
+	{ 5893,	0x6B00 },
+	{ 5812,	0x6C00 },
+	{ 5773,	0x6E00 },
+	{ 5723,	0x7000 },
+	{ 5661,	0x7200 },
+	{ 5579,	0x7300 },
+	{ 5460,	0x7500 },
+	{ 5308,	0x7700 },
+	{ 5099,	0x7900 },
+	{ 4910,	0x7B00 },
+	{ 4800,	0x7D00 },
+	{ 4785,	0x7F00 },
+	{ 4635,	0x8100 },
+	{ 4466,	0x8300 },
+	{ 4314,	0x8500 },
+	{ 4295,	0x8600 },
+	{ 4144,	0x8800 },
+	{ 3920,	0x8A00 },
+	{ 3889,	0x8C00 },
+	{ 3771,	0x8E00 },
+	{ 3655,	0x9000 },
+	{ 3446,	0x9200 },
+	{ 3298,	0x9500 },
+	{ 3083,	0x9700 },
+	{ 3015,	0x9900 },
+	{ 2833,	0x9B00 },
+	{ 2746,	0x9D00 },
+	{ 2632,	0x9F00 },
+	{ 2598,	0xA100 },
+	{ 2480,	0xA400 },
+	{ 2236,	0xA700 },
+	{ 2171,	0xAA00 },
+	{ 2060,	0xAD00 },
+	{ 1999,	0xB000 },
+	{ 1974,	0xB600 },
+	{ 1820,	0xBA00 },
+	{ 1741,	0xBF00 },
+	{ 1655,	0xC500 },
+	{ 1444,	0xDF00 },
+	{ 1325,	0xFF00 },
+};
+
+static inline u32 muldiv32(u32 a, u32 b, u32 c)
+{
+	u64 tmp64;
+
+	tmp64 = (u64)a * (u64)b;
+	do_div(tmp64, c);
+
+	return (u32)tmp64;
+}
+
+static int i2c_read(struct i2c_adapter *adap,
+		    u8 adr, u8 *msg, int len, u8 *answ, int alen)
+{
+	struct i2c_msg msgs[2] = { { .addr = adr, .flags = 0,
+				     .buf = msg, .len = len},
+				   { .addr = adr, .flags = I2C_M_RD,
+				     .buf = answ, .len = alen } };
+	if (i2c_transfer(adap, msgs, 2) != 2) {
+		dev_err(&adap->dev, "i2c read error\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len)
+{
+	struct i2c_msg msg = {.addr = adr, .flags = 0,
+			      .buf = data, .len = len};
+
+	if (i2c_transfer(adap, &msg, 1) != 1) {
+		dev_err(&adap->dev, "i2c write error\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static int write_regs(struct stv *state, int reg, int len)
+{
+	u8 d[12];
+
+	memcpy(&d[1], &state->reg[reg], len);
+	d[0] = reg;
+	return i2c_write(state->i2c, state->adr, d, len + 1);
+}
+
+static int write_reg(struct stv *state, u8 reg, u8 val)
+{
+	u8 d[2] = {reg, val};
+
+	return i2c_write(state->i2c, state->adr, d, 2);
+}
+
+static int read_reg(struct stv *state, u8 reg, u8 *val)
+{
+	return i2c_read(state->i2c, state->adr, &reg, 1, val, 1);
+}
+
+static int wait_for_call_done(struct stv *state, u8 mask)
+{
+	int status = 0;
+	u32 lock_retry_count = 10;
+
+	while (lock_retry_count > 0) {
+		u8 regval;
+
+		status = read_reg(state, 9, &regval);
+		if (status < 0)
+			return status;
+
+		if ((regval & mask) == 0)
+			break;
+		usleep_range(4000, 6000);
+		lock_retry_count -= 1;
+
+		status = -EIO;
+	}
+	return status;
+}
+
+static void init_state(struct stv *state)
+{
+	u32 clkdiv = 0;
+	u32 agcmode = 0;
+	u32 agcref = 2;
+	u32 agcset = 0xffffffff;
+	u32 bbmode = 0xffffffff;
+
+	state->reg[0] = 0x08;
+	state->reg[1] = 0x41;
+	state->reg[2] = 0x8f;
+	state->reg[3] = 0x00;
+	state->reg[4] = 0xce;
+	state->reg[5] = 0x54;
+	state->reg[6] = 0x55;
+	state->reg[7] = 0x45;
+	state->reg[8] = 0x46;
+	state->reg[9] = 0xbd;
+	state->reg[10] = 0x11;
+
+	state->ref_freq = 16000;
+
+	if (clkdiv <= 3)
+		state->reg[0x00] |= (clkdiv & 0x03);
+	if (agcmode <= 3) {
+		state->reg[0x03] |= (agcmode << 5);
+		if (agcmode == 0x01)
+			state->reg[0x01] |= 0x30;
+	}
+	if (bbmode <= 3)
+		state->reg[0x01] = (state->reg[0x01] & ~0x30) | (bbmode << 4);
+	if (agcref <= 7)
+		state->reg[0x03] |= agcref;
+	if (agcset <= 31)
+		state->reg[0x02] = (state->reg[0x02] & ~0x1F) | agcset | 0x40;
+}
+
+static int attach_init(struct stv *state)
+{
+	if (write_regs(state, 0, 11))
+		return -ENODEV;
+	return 0;
+}
+
+static void release(struct dvb_frontend *fe)
+{
+	kfree(fe->tuner_priv);
+	fe->tuner_priv = NULL;
+}
+
+static int set_bandwidth(struct dvb_frontend *fe, u32 cutoff_frequency)
+{
+	struct stv *state = fe->tuner_priv;
+	u32 index = (cutoff_frequency + 999999) / 1000000;
+	int stat = 0;
+
+	if (index < 6)
+		index = 6;
+	if (index > 50)
+		index = 50;
+	if ((state->reg[0x08] & ~0xFC) == ((index - 6) << 2))
+		return 0;
+
+	state->reg[0x08] = (state->reg[0x08] & ~0xFC) | ((index - 6) << 2);
+	state->reg[0x09] = (state->reg[0x09] & ~0x0C) | 0x08;
+	if (fe->ops.i2c_gate_ctrl)
+		stat = fe->ops.i2c_gate_ctrl(fe, 1);
+	if (!stat) {
+		write_regs(state, 0x08, 2);
+		wait_for_call_done(state, 0x08);
+	}
+	if (fe->ops.i2c_gate_ctrl && !stat)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+	return stat;
+}
+
+static int set_lof(struct stv *state, u32 local_frequency, u32 cutoff_frequency)
+{
+	u32 index = (cutoff_frequency + 999999) / 1000000;
+	u32 frequency = (local_frequency + 500) / 1000;
+	u32 p = 1, psel = 0, fvco, div, frac;
+	u8 icp, tmp;
+
+	if (index < 6)
+		index = 6;
+	if (index > 50)
+		index = 50;
+
+	if (frequency <= 1300000) {
+		p =  4;
+		psel = 1;
+	} else {
+		p =  2;
+		psel = 0;
+	}
+	fvco = frequency * p;
+	div = fvco / state->ref_freq;
+	frac = fvco % state->ref_freq;
+	frac = muldiv32(frac, 0x40000, state->ref_freq);
+
+	icp = 0;
+	if (fvco < 2700000)
+		icp = 0;
+	else if (fvco < 2950000)
+		icp = 1;
+	else if (fvco < 3300000)
+		icp = 2;
+	else if (fvco < 3700000)
+		icp = 3;
+	else if (fvco < 4200000)
+		icp = 5;
+	else if (fvco < 4800000)
+		icp = 6;
+	else
+		icp = 7;
+
+	state->reg[0x02] |= 0x80; /* LNA IIP3 Mode */
+
+	state->reg[0x03] = (state->reg[0x03] & ~0x80) | (psel << 7);
+	state->reg[0x04] = (div & 0xFF);
+	state->reg[0x05] = (((div >> 8) & 0x01) | ((frac & 0x7F) << 1)) & 0xff;
+	state->reg[0x06] = ((frac >> 7) & 0xFF);
+	state->reg[0x07] = (state->reg[0x07] & ~0x07) | ((frac >> 15) & 0x07);
+	state->reg[0x07] = (state->reg[0x07] & ~0xE0) | (icp << 5);
+
+	state->reg[0x08] = (state->reg[0x08] & ~0xFC) | ((index - 6) << 2);
+	/* Start cal vco,CF */
+	state->reg[0x09] = (state->reg[0x09] & ~0x0C) | 0x0C;
+	write_regs(state, 2, 8);
+
+	wait_for_call_done(state, 0x0C);
+
+	usleep_range(10000, 12000);
+
+	read_reg(state, 0x03, &tmp);
+	if (tmp & 0x10)	{
+		state->reg[0x02] &= ~0x80; /* LNA NF Mode */
+		write_regs(state, 2, 1);
+	}
+	read_reg(state, 0x08, &tmp);
+
+	state->frequency = frequency;
+
+	return 0;
+}
+
+static int set_params(struct dvb_frontend *fe)
+{
+	struct stv *state = fe->tuner_priv;
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	u32 freq, cutoff;
+	int stat = 0;
+
+	if (p->delivery_system != SYS_DVBS && p->delivery_system != SYS_DVBS2)
+		return -EINVAL;
+
+	freq = p->frequency * 1000;
+	cutoff = 5000000 + muldiv32(p->symbol_rate, 135, 200);
+
+	if (fe->ops.i2c_gate_ctrl)
+		stat = fe->ops.i2c_gate_ctrl(fe, 1);
+	if (!stat)
+		set_lof(state, freq, cutoff);
+	if (fe->ops.i2c_gate_ctrl && !stat)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+	return 0;
+}
+
+static s32 table_lookup(const struct slookup *table,
+			int table_size, u16 reg_value)
+{
+	s32 gain;
+	s32 reg_diff;
+	int imin = 0;
+	int imax = table_size - 1;
+	int i;
+
+	/* Assumes Table[0].RegValue < Table[imax].RegValue */
+	if (reg_value <= table[0].reg_value) {
+		gain = table[0].value;
+	} else if (reg_value >= table[imax].reg_value) {
+		gain = table[imax].value;
+	} else {
+		while ((imax - imin) > 1) {
+			i = (imax + imin) / 2;
+			if ((table[imin].reg_value <= reg_value) &&
+			    (reg_value <= table[i].reg_value))
+				imax = i;
+			else
+				imin = i;
+		}
+		reg_diff = table[imax].reg_value - table[imin].reg_value;
+		gain = table[imin].value;
+		if (reg_diff != 0)
+			gain += ((s32)(reg_value - table[imin].reg_value) *
+				(s32)(table[imax].value
+				- table[imin].value)) / reg_diff;
+	}
+	return gain;
+}
+
+static int get_rf_strength(struct dvb_frontend *fe, u16 *st)
+{
+	struct stv *state = fe->tuner_priv;
+	u16 rfagc = *st;
+	s32 gain;
+
+	if ((state->reg[0x03] & 0x60) == 0) {
+		/* RF Mode, Read AGC ADC */
+		u8 reg = 0;
+		int stat = 0;
+
+		if (fe->ops.i2c_gate_ctrl)
+			stat = fe->ops.i2c_gate_ctrl(fe, 1);
+		if (!stat) {
+			write_reg(state, 0x02, state->reg[0x02] | 0x20);
+			read_reg(state, 2, &reg);
+			if (reg & 0x20)
+				read_reg(state, 2, &reg);
+		}
+		if (fe->ops.i2c_gate_ctrl && !stat)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+
+		if ((state->reg[0x02] & 0x80) == 0)
+			/* NF */
+			gain = table_lookup(lnagain_nf_lookup,
+					    ARRAY_SIZE(lnagain_nf_lookup),
+					    reg & 0x1F);
+		else
+			/* IIP3 */
+			gain = table_lookup(lnagain_iip3_lookup,
+					    ARRAY_SIZE(lnagain_iip3_lookup),
+					    reg & 0x1F);
+
+		gain += table_lookup(gain_rfagc_lookup,
+				     ARRAY_SIZE(gain_rfagc_lookup), rfagc);
+
+		gain -= 2400;
+	} else {
+		/* Channel Mode */
+		if ((state->reg[0x02] & 0x80) == 0) {
+			/* NF */
+			gain = table_lookup(
+				gain_channel_agc_nf_lookup,
+				ARRAY_SIZE(gain_channel_agc_nf_lookup), rfagc);
+
+			gain += 600;
+		} else {
+			/* IIP3 */
+			gain = table_lookup(
+				gain_channel_agc_iip3_lookup,
+				ARRAY_SIZE(gain_channel_agc_iip3_lookup),
+				rfagc);
+		}
+	}
+
+	if (state->frequency > 0)
+		/* Tilt correction ( 0.00016 dB/MHz ) */
+		gain -= ((((s32)(state->frequency / 1000) - 1550) * 2) / 12);
+
+	/* + (BBGain * 10); */
+	gain +=  (s32)((state->reg[0x01] & 0xC0) >> 6) * 600 - 1300;
+
+	if (gain < 0)
+		gain = 0;
+	else if (gain > 10000)
+		gain = 10000;
+
+	*st = 10000 - gain;
+
+	return 0;
+}
+
+static const struct dvb_tuner_ops tuner_ops = {
+	.info = {
+		.name		= "ST STV6111",
+		.frequency_min_hz =  950 * MHz,
+		.frequency_max_hz = 2150 * MHz,
+	},
+	.set_params		= set_params,
+	.release		= release,
+	.get_rf_strength	= get_rf_strength,
+	.set_bandwidth		= set_bandwidth,
+};
+
+struct dvb_frontend *stv6111_attach(struct dvb_frontend *fe,
+				    struct i2c_adapter *i2c, u8 adr)
+{
+	struct stv *state;
+	int stat = -ENODEV;
+	int gatestat = 0;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+	state->adr = adr;
+	state->i2c = i2c;
+	memcpy(&fe->ops.tuner_ops, &tuner_ops, sizeof(struct dvb_tuner_ops));
+	init_state(state);
+
+	if (fe->ops.i2c_gate_ctrl)
+		gatestat = fe->ops.i2c_gate_ctrl(fe, 1);
+	if (!gatestat)
+		stat = attach_init(state);
+	if (fe->ops.i2c_gate_ctrl && !gatestat)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+	if (stat < 0) {
+		kfree(state);
+		return NULL;
+	}
+	fe->tuner_priv = state;
+	return fe;
+}
+EXPORT_SYMBOL_GPL(stv6111_attach);
+
+MODULE_DESCRIPTION("ST STV6111 satellite tuner driver");
+MODULE_AUTHOR("Ralph Metzler, Manfred Voelkel");
+MODULE_LICENSE("GPL");