Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 1235 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/tda18271c2dd.c b/drivers/media/dvb-frontends/tda18271c2dd.c
new file mode 100644
index 000000000..a34834487
--- /dev/null
+++ b/drivers/media/dvb-frontends/tda18271c2dd.c
@@ -0,0 +1,1235 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tda18271c2dd: Driver for the TDA18271C2 tuner
+ *
+ * Copyright (C) 2010 Digital Devices GmbH
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <asm/div64.h>
+
+#include <media/dvb_frontend.h>
+#include "tda18271c2dd.h"
+
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
+struct SStandardParam {
+	s32   m_IFFrequency;
+	u32   m_BandWidth;
+	u8    m_EP3_4_0;
+	u8    m_EB22;
+};
+
+struct SMap {
+	u32   m_Frequency;
+	u8    m_Param;
+};
+
+struct SMapI {
+	u32   m_Frequency;
+	s32    m_Param;
+};
+
+struct SMap2 {
+	u32   m_Frequency;
+	u8    m_Param1;
+	u8    m_Param2;
+};
+
+struct SRFBandMap {
+	u32   m_RF_max;
+	u32   m_RF1_Default;
+	u32   m_RF2_Default;
+	u32   m_RF3_Default;
+};
+
+enum ERegister {
+	ID = 0,
+	TM,
+	PL,
+	EP1, EP2, EP3, EP4, EP5,
+	CPD, CD1, CD2, CD3,
+	MPD, MD1, MD2, MD3,
+	EB1, EB2, EB3, EB4, EB5, EB6, EB7, EB8, EB9, EB10,
+	EB11, EB12, EB13, EB14, EB15, EB16, EB17, EB18, EB19, EB20,
+	EB21, EB22, EB23,
+	NUM_REGS
+};
+
+struct tda_state {
+	struct i2c_adapter *i2c;
+	u8 adr;
+
+	u32   m_Frequency;
+	u32   IF;
+
+	u8    m_IFLevelAnalog;
+	u8    m_IFLevelDigital;
+	u8    m_IFLevelDVBC;
+	u8    m_IFLevelDVBT;
+
+	u8    m_EP4;
+	u8    m_EP3_Standby;
+
+	bool  m_bMaster;
+
+	s32   m_SettlingTime;
+
+	u8    m_Regs[NUM_REGS];
+
+	/* Tracking filter settings for band 0..6 */
+	u32   m_RF1[7];
+	s32   m_RF_A1[7];
+	s32   m_RF_B1[7];
+	u32   m_RF2[7];
+	s32   m_RF_A2[7];
+	s32   m_RF_B2[7];
+	u32   m_RF3[7];
+
+	u8    m_TMValue_RFCal;    /* Calibration temperature */
+
+	bool  m_bFMInput;         /* true to use Pin 8 for FM Radio */
+
+};
+
+static int PowerScan(struct tda_state *state,
+		     u8 RFBand, u32 RF_in,
+		     u32 *pRF_Out, bool *pbcal);
+
+static int i2c_readn(struct i2c_adapter *adapter, u8 adr, u8 *data, int len)
+{
+	struct i2c_msg msgs[1] = {{.addr = adr,  .flags = I2C_M_RD,
+				   .buf  = data, .len   = len} };
+	return (i2c_transfer(adapter, msgs, 1) == 1) ? 0 : -1;
+}
+
+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) {
+		printk(KERN_ERR "tda18271c2dd: i2c write error at addr %i\n", adr);
+		return -1;
+	}
+	return 0;
+}
+
+static int WriteRegs(struct tda_state *state,
+		     u8 SubAddr, u8 *Regs, u16 nRegs)
+{
+	u8 data[MAX_XFER_SIZE];
+
+	if (1 + nRegs > sizeof(data)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr: len=%d is too big!\n",
+		       KBUILD_MODNAME, nRegs);
+		return -EINVAL;
+	}
+
+	data[0] = SubAddr;
+	memcpy(data + 1, Regs, nRegs);
+	return i2c_write(state->i2c, state->adr, data, nRegs + 1);
+}
+
+static int WriteReg(struct tda_state *state, u8 SubAddr, u8 Reg)
+{
+	u8 msg[2] = {SubAddr, Reg};
+
+	return i2c_write(state->i2c, state->adr, msg, 2);
+}
+
+static int Read(struct tda_state *state, u8 * Regs)
+{
+	return i2c_readn(state->i2c, state->adr, Regs, 16);
+}
+
+static int ReadExtented(struct tda_state *state, u8 * Regs)
+{
+	return i2c_readn(state->i2c, state->adr, Regs, NUM_REGS);
+}
+
+static int UpdateRegs(struct tda_state *state, u8 RegFrom, u8 RegTo)
+{
+	return WriteRegs(state, RegFrom,
+			 &state->m_Regs[RegFrom], RegTo-RegFrom+1);
+}
+static int UpdateReg(struct tda_state *state, u8 Reg)
+{
+	return WriteReg(state, Reg, state->m_Regs[Reg]);
+}
+
+#include "tda18271c2dd_maps.h"
+
+static void reset(struct tda_state *state)
+{
+	u32   ulIFLevelAnalog = 0;
+	u32   ulIFLevelDigital = 2;
+	u32   ulIFLevelDVBC = 7;
+	u32   ulIFLevelDVBT = 6;
+	u32   ulXTOut = 0;
+	u32   ulStandbyMode = 0x06;    /* Send in stdb, but leave osc on */
+	u32   ulSlave = 0;
+	u32   ulFMInput = 0;
+	u32   ulSettlingTime = 100;
+
+	state->m_Frequency         = 0;
+	state->m_SettlingTime = 100;
+	state->m_IFLevelAnalog = (ulIFLevelAnalog & 0x07) << 2;
+	state->m_IFLevelDigital = (ulIFLevelDigital & 0x07) << 2;
+	state->m_IFLevelDVBC = (ulIFLevelDVBC & 0x07) << 2;
+	state->m_IFLevelDVBT = (ulIFLevelDVBT & 0x07) << 2;
+
+	state->m_EP4 = 0x20;
+	if (ulXTOut != 0)
+		state->m_EP4 |= 0x40;
+
+	state->m_EP3_Standby = ((ulStandbyMode & 0x07) << 5) | 0x0F;
+	state->m_bMaster = (ulSlave == 0);
+
+	state->m_SettlingTime = ulSettlingTime;
+
+	state->m_bFMInput = (ulFMInput == 2);
+}
+
+static bool SearchMap1(const struct SMap map[], u32 frequency, u8 *param)
+{
+	int i = 0;
+
+	while ((map[i].m_Frequency != 0) && (frequency > map[i].m_Frequency))
+		i += 1;
+	if (map[i].m_Frequency == 0)
+		return false;
+	*param = map[i].m_Param;
+	return true;
+}
+
+static bool SearchMap2(const struct SMapI map[], u32 frequency, s32 *param)
+{
+	int i = 0;
+
+	while ((map[i].m_Frequency != 0) &&
+	       (frequency > map[i].m_Frequency))
+		i += 1;
+	if (map[i].m_Frequency == 0)
+		return false;
+	*param = map[i].m_Param;
+	return true;
+}
+
+static bool SearchMap3(const struct SMap2 map[], u32 frequency, u8 *param1,
+		       u8 *param2)
+{
+	int i = 0;
+
+	while ((map[i].m_Frequency != 0) &&
+	       (frequency > map[i].m_Frequency))
+		i += 1;
+	if (map[i].m_Frequency == 0)
+		return false;
+	*param1 = map[i].m_Param1;
+	*param2 = map[i].m_Param2;
+	return true;
+}
+
+static bool SearchMap4(const struct SRFBandMap map[], u32 frequency, u8 *rfband)
+{
+	int i = 0;
+
+	while (i < 7 && (frequency > map[i].m_RF_max))
+		i += 1;
+	if (i == 7)
+		return false;
+	*rfband = i;
+	return true;
+}
+
+static int ThermometerRead(struct tda_state *state, u8 *pTM_Value)
+{
+	int status = 0;
+
+	do {
+		u8 Regs[16];
+		state->m_Regs[TM] |= 0x10;
+		status = UpdateReg(state, TM);
+		if (status < 0)
+			break;
+		status = Read(state, Regs);
+		if (status < 0)
+			break;
+		if (((Regs[TM] & 0x0F) == 0 && (Regs[TM] & 0x20) == 0x20) ||
+		    ((Regs[TM] & 0x0F) == 8 && (Regs[TM] & 0x20) == 0x00)) {
+			state->m_Regs[TM] ^= 0x20;
+			status = UpdateReg(state, TM);
+			if (status < 0)
+				break;
+			msleep(10);
+			status = Read(state, Regs);
+			if (status < 0)
+				break;
+		}
+		*pTM_Value = (Regs[TM] & 0x20)
+				? m_Thermometer_Map_2[Regs[TM] & 0x0F]
+				: m_Thermometer_Map_1[Regs[TM] & 0x0F] ;
+		state->m_Regs[TM] &= ~0x10;        /* Thermometer off */
+		status = UpdateReg(state, TM);
+		if (status < 0)
+			break;
+		state->m_Regs[EP4] &= ~0x03;       /* CAL_mode = 0 ????????? */
+		status = UpdateReg(state, EP4);
+		if (status < 0)
+			break;
+	} while (0);
+
+	return status;
+}
+
+static int StandBy(struct tda_state *state)
+{
+	int status = 0;
+	do {
+		state->m_Regs[EB12] &= ~0x20;  /* PD_AGC1_Det = 0 */
+		status = UpdateReg(state, EB12);
+		if (status < 0)
+			break;
+		state->m_Regs[EB18] &= ~0x83;  /* AGC1_loop_off = 0, AGC1_Gain = 6 dB */
+		status = UpdateReg(state, EB18);
+		if (status < 0)
+			break;
+		state->m_Regs[EB21] |= 0x03; /* AGC2_Gain = -6 dB */
+		state->m_Regs[EP3] = state->m_EP3_Standby;
+		status = UpdateReg(state, EP3);
+		if (status < 0)
+			break;
+		state->m_Regs[EB23] &= ~0x06; /* ForceLP_Fc2_En = 0, LP_Fc[2] = 0 */
+		status = UpdateRegs(state, EB21, EB23);
+		if (status < 0)
+			break;
+	} while (0);
+	return status;
+}
+
+static int CalcMainPLL(struct tda_state *state, u32 freq)
+{
+
+	u8  PostDiv;
+	u8  Div;
+	u64 OscFreq;
+	u32 MainDiv;
+
+	if (!SearchMap3(m_Main_PLL_Map, freq, &PostDiv, &Div))
+		return -EINVAL;
+
+	OscFreq = (u64) freq * (u64) Div;
+	OscFreq *= (u64) 16384;
+	do_div(OscFreq, (u64)16000000);
+	MainDiv = OscFreq;
+
+	state->m_Regs[MPD] = PostDiv & 0x77;
+	state->m_Regs[MD1] = ((MainDiv >> 16) & 0x7F);
+	state->m_Regs[MD2] = ((MainDiv >>  8) & 0xFF);
+	state->m_Regs[MD3] = (MainDiv & 0xFF);
+
+	return UpdateRegs(state, MPD, MD3);
+}
+
+static int CalcCalPLL(struct tda_state *state, u32 freq)
+{
+	u8 PostDiv;
+	u8 Div;
+	u64 OscFreq;
+	u32 CalDiv;
+
+	if (!SearchMap3(m_Cal_PLL_Map, freq, &PostDiv, &Div))
+		return -EINVAL;
+
+	OscFreq = (u64)freq * (u64)Div;
+	/* CalDiv = u32( OscFreq * 16384 / 16000000 ); */
+	OscFreq *= (u64)16384;
+	do_div(OscFreq, (u64)16000000);
+	CalDiv = OscFreq;
+
+	state->m_Regs[CPD] = PostDiv;
+	state->m_Regs[CD1] = ((CalDiv >> 16) & 0xFF);
+	state->m_Regs[CD2] = ((CalDiv >>  8) & 0xFF);
+	state->m_Regs[CD3] = (CalDiv & 0xFF);
+
+	return UpdateRegs(state, CPD, CD3);
+}
+
+static int CalibrateRF(struct tda_state *state,
+		       u8 RFBand, u32 freq, s32 *pCprog)
+{
+	int status = 0;
+	u8 Regs[NUM_REGS];
+	do {
+		u8 BP_Filter = 0;
+		u8 GainTaper = 0;
+		u8 RFC_K = 0;
+		u8 RFC_M = 0;
+
+		state->m_Regs[EP4] &= ~0x03; /* CAL_mode = 0 */
+		status = UpdateReg(state, EP4);
+		if (status < 0)
+			break;
+		state->m_Regs[EB18] |= 0x03;  /* AGC1_Gain = 3 */
+		status = UpdateReg(state, EB18);
+		if (status < 0)
+			break;
+
+		/* Switching off LT (as datasheet says) causes calibration on C1 to fail */
+		/* (Readout of Cprog is always 255) */
+		if (state->m_Regs[ID] != 0x83)    /* C1: ID == 83, C2: ID == 84 */
+			state->m_Regs[EP3] |= 0x40; /* SM_LT = 1 */
+
+		if (!(SearchMap1(m_BP_Filter_Map, freq, &BP_Filter) &&
+			SearchMap1(m_GainTaper_Map, freq, &GainTaper) &&
+			SearchMap3(m_KM_Map, freq, &RFC_K, &RFC_M)))
+			return -EINVAL;
+
+		state->m_Regs[EP1] = (state->m_Regs[EP1] & ~0x07) | BP_Filter;
+		state->m_Regs[EP2] = (RFBand << 5) | GainTaper;
+
+		state->m_Regs[EB13] = (state->m_Regs[EB13] & ~0x7C) | (RFC_K << 4) | (RFC_M << 2);
+
+		status = UpdateRegs(state, EP1, EP3);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EB13);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EB4] |= 0x20;    /* LO_ForceSrce = 1 */
+		status = UpdateReg(state, EB4);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EB7] |= 0x20;    /* CAL_ForceSrce = 1 */
+		status = UpdateReg(state, EB7);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EB14] = 0; /* RFC_Cprog = 0 */
+		status = UpdateReg(state, EB14);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EB20] &= ~0x20;  /* ForceLock = 0; */
+		status = UpdateReg(state, EB20);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EP4] |= 0x03;  /* CAL_Mode = 3 */
+		status = UpdateRegs(state, EP4, EP5);
+		if (status < 0)
+			break;
+
+		status = CalcCalPLL(state, freq);
+		if (status < 0)
+			break;
+		status = CalcMainPLL(state, freq + 1000000);
+		if (status < 0)
+			break;
+
+		msleep(5);
+		status = UpdateReg(state, EP2);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EP2);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EB4] &= ~0x20;    /* LO_ForceSrce = 0 */
+		status = UpdateReg(state, EB4);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EB7] &= ~0x20;    /* CAL_ForceSrce = 0 */
+		status = UpdateReg(state, EB7);
+		if (status < 0)
+			break;
+		msleep(10);
+
+		state->m_Regs[EB20] |= 0x20;  /* ForceLock = 1; */
+		status = UpdateReg(state, EB20);
+		if (status < 0)
+			break;
+		msleep(60);
+
+		state->m_Regs[EP4] &= ~0x03;  /* CAL_Mode = 0 */
+		state->m_Regs[EP3] &= ~0x40; /* SM_LT = 0 */
+		state->m_Regs[EB18] &= ~0x03;  /* AGC1_Gain = 0 */
+		status = UpdateReg(state, EB18);
+		if (status < 0)
+			break;
+		status = UpdateRegs(state, EP3, EP4);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+
+		status = ReadExtented(state, Regs);
+		if (status < 0)
+			break;
+
+		*pCprog = Regs[EB14];
+
+	} while (0);
+	return status;
+}
+
+static int RFTrackingFiltersInit(struct tda_state *state,
+				 u8 RFBand)
+{
+	int status = 0;
+
+	u32   RF1 = m_RF_Band_Map[RFBand].m_RF1_Default;
+	u32   RF2 = m_RF_Band_Map[RFBand].m_RF2_Default;
+	u32   RF3 = m_RF_Band_Map[RFBand].m_RF3_Default;
+	bool    bcal = false;
+
+	s32    Cprog_cal1 = 0;
+	s32    Cprog_table1 = 0;
+	s32    Cprog_cal2 = 0;
+	s32    Cprog_table2 = 0;
+	s32    Cprog_cal3 = 0;
+	s32    Cprog_table3 = 0;
+
+	state->m_RF_A1[RFBand] = 0;
+	state->m_RF_B1[RFBand] = 0;
+	state->m_RF_A2[RFBand] = 0;
+	state->m_RF_B2[RFBand] = 0;
+
+	do {
+		status = PowerScan(state, RFBand, RF1, &RF1, &bcal);
+		if (status < 0)
+			break;
+		if (bcal) {
+			status = CalibrateRF(state, RFBand, RF1, &Cprog_cal1);
+			if (status < 0)
+				break;
+		}
+		SearchMap2(m_RF_Cal_Map, RF1, &Cprog_table1);
+		if (!bcal)
+			Cprog_cal1 = Cprog_table1;
+		state->m_RF_B1[RFBand] = Cprog_cal1 - Cprog_table1;
+		/* state->m_RF_A1[RF_Band] = ???? */
+
+		if (RF2 == 0)
+			break;
+
+		status = PowerScan(state, RFBand, RF2, &RF2, &bcal);
+		if (status < 0)
+			break;
+		if (bcal) {
+			status = CalibrateRF(state, RFBand, RF2, &Cprog_cal2);
+			if (status < 0)
+				break;
+		}
+		SearchMap2(m_RF_Cal_Map, RF2, &Cprog_table2);
+		if (!bcal)
+			Cprog_cal2 = Cprog_table2;
+
+		state->m_RF_A1[RFBand] =
+			(Cprog_cal2 - Cprog_table2 - Cprog_cal1 + Cprog_table1) /
+			((s32)(RF2) - (s32)(RF1));
+
+		if (RF3 == 0)
+			break;
+
+		status = PowerScan(state, RFBand, RF3, &RF3, &bcal);
+		if (status < 0)
+			break;
+		if (bcal) {
+			status = CalibrateRF(state, RFBand, RF3, &Cprog_cal3);
+			if (status < 0)
+				break;
+		}
+		SearchMap2(m_RF_Cal_Map, RF3, &Cprog_table3);
+		if (!bcal)
+			Cprog_cal3 = Cprog_table3;
+		state->m_RF_A2[RFBand] = (Cprog_cal3 - Cprog_table3 - Cprog_cal2 + Cprog_table2) / ((s32)(RF3) - (s32)(RF2));
+		state->m_RF_B2[RFBand] = Cprog_cal2 - Cprog_table2;
+
+	} while (0);
+
+	state->m_RF1[RFBand] = RF1;
+	state->m_RF2[RFBand] = RF2;
+	state->m_RF3[RFBand] = RF3;
+
+#if 0
+	printk(KERN_ERR "tda18271c2dd: %s %d RF1 = %d A1 = %d B1 = %d RF2 = %d A2 = %d B2 = %d RF3 = %d\n", __func__,
+	       RFBand, RF1, state->m_RF_A1[RFBand], state->m_RF_B1[RFBand], RF2,
+	       state->m_RF_A2[RFBand], state->m_RF_B2[RFBand], RF3);
+#endif
+
+	return status;
+}
+
+static int PowerScan(struct tda_state *state,
+		     u8 RFBand, u32 RF_in, u32 *pRF_Out, bool *pbcal)
+{
+	int status = 0;
+	do {
+		u8   Gain_Taper = 0;
+		s32  RFC_Cprog = 0;
+		u8   CID_Target = 0;
+		u8   CountLimit = 0;
+		u32  freq_MainPLL;
+		u8   Regs[NUM_REGS];
+		u8   CID_Gain;
+		s32  Count = 0;
+		int  sign  = 1;
+		bool wait = false;
+
+		if (!(SearchMap2(m_RF_Cal_Map, RF_in, &RFC_Cprog) &&
+		      SearchMap1(m_GainTaper_Map, RF_in, &Gain_Taper) &&
+		      SearchMap3(m_CID_Target_Map, RF_in, &CID_Target, &CountLimit))) {
+
+			printk(KERN_ERR "tda18271c2dd: %s Search map failed\n", __func__);
+			return -EINVAL;
+		}
+
+		state->m_Regs[EP2] = (RFBand << 5) | Gain_Taper;
+		state->m_Regs[EB14] = (RFC_Cprog);
+		status = UpdateReg(state, EP2);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EB14);
+		if (status < 0)
+			break;
+
+		freq_MainPLL = RF_in + 1000000;
+		status = CalcMainPLL(state, freq_MainPLL);
+		if (status < 0)
+			break;
+		msleep(5);
+		state->m_Regs[EP4] = (state->m_Regs[EP4] & ~0x03) | 1;    /* CAL_mode = 1 */
+		status = UpdateReg(state, EP4);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EP2);  /* Launch power measurement */
+		if (status < 0)
+			break;
+		status = ReadExtented(state, Regs);
+		if (status < 0)
+			break;
+		CID_Gain = Regs[EB10] & 0x3F;
+		state->m_Regs[ID] = Regs[ID];  /* Chip version, (needed for C1 workaround in CalibrateRF) */
+
+		*pRF_Out = RF_in;
+
+		while (CID_Gain < CID_Target) {
+			freq_MainPLL = RF_in + sign * Count + 1000000;
+			status = CalcMainPLL(state, freq_MainPLL);
+			if (status < 0)
+				break;
+			msleep(wait ? 5 : 1);
+			wait = false;
+			status = UpdateReg(state, EP2);  /* Launch power measurement */
+			if (status < 0)
+				break;
+			status = ReadExtented(state, Regs);
+			if (status < 0)
+				break;
+			CID_Gain = Regs[EB10] & 0x3F;
+			Count += 200000;
+
+			if (Count < CountLimit * 100000)
+				continue;
+			if (sign < 0)
+				break;
+
+			sign = -sign;
+			Count = 200000;
+			wait = true;
+		}
+		if (status < 0)
+			break;
+		if (CID_Gain >= CID_Target) {
+			*pbcal = true;
+			*pRF_Out = freq_MainPLL - 1000000;
+		} else
+			*pbcal = false;
+	} while (0);
+
+	return status;
+}
+
+static int PowerScanInit(struct tda_state *state)
+{
+	int status = 0;
+	do {
+		state->m_Regs[EP3] = (state->m_Regs[EP3] & ~0x1F) | 0x12;
+		state->m_Regs[EP4] = (state->m_Regs[EP4] & ~0x1F); /* If level = 0, Cal mode = 0 */
+		status = UpdateRegs(state, EP3, EP4);
+		if (status < 0)
+			break;
+		state->m_Regs[EB18] = (state->m_Regs[EB18] & ~0x03); /* AGC 1 Gain = 0 */
+		status = UpdateReg(state, EB18);
+		if (status < 0)
+			break;
+		state->m_Regs[EB21] = (state->m_Regs[EB21] & ~0x03); /* AGC 2 Gain = 0 (Datasheet = 3) */
+		state->m_Regs[EB23] = (state->m_Regs[EB23] | 0x06); /* ForceLP_Fc2_En = 1, LPFc[2] = 1 */
+		status = UpdateRegs(state, EB21, EB23);
+		if (status < 0)
+			break;
+	} while (0);
+	return status;
+}
+
+static int CalcRFFilterCurve(struct tda_state *state)
+{
+	int status = 0;
+	do {
+		msleep(200);      /* Temperature stabilisation */
+		status = PowerScanInit(state);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 0);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 1);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 2);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 3);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 4);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 5);
+		if (status < 0)
+			break;
+		status = RFTrackingFiltersInit(state, 6);
+		if (status < 0)
+			break;
+		status = ThermometerRead(state, &state->m_TMValue_RFCal); /* also switches off Cal mode !!! */
+		if (status < 0)
+			break;
+	} while (0);
+
+	return status;
+}
+
+static int FixedContentsI2CUpdate(struct tda_state *state)
+{
+	static u8 InitRegs[] = {
+		0x08, 0x80, 0xC6,
+		0xDF, 0x16, 0x60, 0x80,
+		0x80, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00,
+		0xFC, 0x01, 0x84, 0x41,
+		0x01, 0x84, 0x40, 0x07,
+		0x00, 0x00, 0x96, 0x3F,
+		0xC1, 0x00, 0x8F, 0x00,
+		0x00, 0x8C, 0x00, 0x20,
+		0xB3, 0x48, 0xB0,
+	};
+	int status = 0;
+	memcpy(&state->m_Regs[TM], InitRegs, EB23 - TM + 1);
+	do {
+		status = UpdateRegs(state, TM, EB23);
+		if (status < 0)
+			break;
+
+		/* AGC1 gain setup */
+		state->m_Regs[EB17] = 0x00;
+		status = UpdateReg(state, EB17);
+		if (status < 0)
+			break;
+		state->m_Regs[EB17] = 0x03;
+		status = UpdateReg(state, EB17);
+		if (status < 0)
+			break;
+		state->m_Regs[EB17] = 0x43;
+		status = UpdateReg(state, EB17);
+		if (status < 0)
+			break;
+		state->m_Regs[EB17] = 0x4C;
+		status = UpdateReg(state, EB17);
+		if (status < 0)
+			break;
+
+		/* IRC Cal Low band */
+		state->m_Regs[EP3] = 0x1F;
+		state->m_Regs[EP4] = 0x66;
+		state->m_Regs[EP5] = 0x81;
+		state->m_Regs[CPD] = 0xCC;
+		state->m_Regs[CD1] = 0x6C;
+		state->m_Regs[CD2] = 0x00;
+		state->m_Regs[CD3] = 0x00;
+		state->m_Regs[MPD] = 0xC5;
+		state->m_Regs[MD1] = 0x77;
+		state->m_Regs[MD2] = 0x08;
+		state->m_Regs[MD3] = 0x00;
+		status = UpdateRegs(state, EP2, MD3); /* diff between sw and datasheet (ep3-md3) */
+		if (status < 0)
+			break;
+
+#if 0
+		state->m_Regs[EB4] = 0x61;          /* missing in sw */
+		status = UpdateReg(state, EB4);
+		if (status < 0)
+			break;
+		msleep(1);
+		state->m_Regs[EB4] = 0x41;
+		status = UpdateReg(state, EB4);
+		if (status < 0)
+			break;
+#endif
+
+		msleep(5);
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+		msleep(5);
+
+		state->m_Regs[EP5] = 0x85;
+		state->m_Regs[CPD] = 0xCB;
+		state->m_Regs[CD1] = 0x66;
+		state->m_Regs[CD2] = 0x70;
+		status = UpdateRegs(state, EP3, CD3);
+		if (status < 0)
+			break;
+		msleep(5);
+		status = UpdateReg(state, EP2);
+		if (status < 0)
+			break;
+		msleep(30);
+
+		/* IRC Cal mid band */
+		state->m_Regs[EP5] = 0x82;
+		state->m_Regs[CPD] = 0xA8;
+		state->m_Regs[CD2] = 0x00;
+		state->m_Regs[MPD] = 0xA1; /* Datasheet = 0xA9 */
+		state->m_Regs[MD1] = 0x73;
+		state->m_Regs[MD2] = 0x1A;
+		status = UpdateRegs(state, EP3, MD3);
+		if (status < 0)
+			break;
+
+		msleep(5);
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+		msleep(5);
+
+		state->m_Regs[EP5] = 0x86;
+		state->m_Regs[CPD] = 0xA8;
+		state->m_Regs[CD1] = 0x66;
+		state->m_Regs[CD2] = 0xA0;
+		status = UpdateRegs(state, EP3, CD3);
+		if (status < 0)
+			break;
+		msleep(5);
+		status = UpdateReg(state, EP2);
+		if (status < 0)
+			break;
+		msleep(30);
+
+		/* IRC Cal high band */
+		state->m_Regs[EP5] = 0x83;
+		state->m_Regs[CPD] = 0x98;
+		state->m_Regs[CD1] = 0x65;
+		state->m_Regs[CD2] = 0x00;
+		state->m_Regs[MPD] = 0x91;  /* Datasheet = 0x91 */
+		state->m_Regs[MD1] = 0x71;
+		state->m_Regs[MD2] = 0xCD;
+		status = UpdateRegs(state, EP3, MD3);
+		if (status < 0)
+			break;
+		msleep(5);
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+		msleep(5);
+		state->m_Regs[EP5] = 0x87;
+		state->m_Regs[CD1] = 0x65;
+		state->m_Regs[CD2] = 0x50;
+		status = UpdateRegs(state, EP3, CD3);
+		if (status < 0)
+			break;
+		msleep(5);
+		status = UpdateReg(state, EP2);
+		if (status < 0)
+			break;
+		msleep(30);
+
+		/* Back to normal */
+		state->m_Regs[EP4] = 0x64;
+		status = UpdateReg(state, EP4);
+		if (status < 0)
+			break;
+		status = UpdateReg(state, EP1);
+		if (status < 0)
+			break;
+
+	} while (0);
+	return status;
+}
+
+static int InitCal(struct tda_state *state)
+{
+	int status = 0;
+
+	do {
+		status = FixedContentsI2CUpdate(state);
+		if (status < 0)
+			break;
+		status = CalcRFFilterCurve(state);
+		if (status < 0)
+			break;
+		status = StandBy(state);
+		if (status < 0)
+			break;
+		/* m_bInitDone = true; */
+	} while (0);
+	return status;
+};
+
+static int RFTrackingFiltersCorrection(struct tda_state *state,
+				       u32 Frequency)
+{
+	int status = 0;
+	s32 Cprog_table;
+	u8 RFBand;
+	u8 dCoverdT;
+
+	if (!SearchMap2(m_RF_Cal_Map, Frequency, &Cprog_table) ||
+	    !SearchMap4(m_RF_Band_Map, Frequency, &RFBand) ||
+	    !SearchMap1(m_RF_Cal_DC_Over_DT_Map, Frequency, &dCoverdT))
+
+		return -EINVAL;
+
+	do {
+		u8 TMValue_Current;
+		u32   RF1 = state->m_RF1[RFBand];
+		u32   RF2 = state->m_RF1[RFBand];
+		u32   RF3 = state->m_RF1[RFBand];
+		s32    RF_A1 = state->m_RF_A1[RFBand];
+		s32    RF_B1 = state->m_RF_B1[RFBand];
+		s32    RF_A2 = state->m_RF_A2[RFBand];
+		s32    RF_B2 = state->m_RF_B2[RFBand];
+		s32 Capprox = 0;
+		int TComp;
+
+		state->m_Regs[EP3] &= ~0xE0;  /* Power up */
+		status = UpdateReg(state, EP3);
+		if (status < 0)
+			break;
+
+		status = ThermometerRead(state, &TMValue_Current);
+		if (status < 0)
+			break;
+
+		if (RF3 == 0 || Frequency < RF2)
+			Capprox = RF_A1 * ((s32)(Frequency) - (s32)(RF1)) + RF_B1 + Cprog_table;
+		else
+			Capprox = RF_A2 * ((s32)(Frequency) - (s32)(RF2)) + RF_B2 + Cprog_table;
+
+		TComp = (int)(dCoverdT) * ((int)(TMValue_Current) - (int)(state->m_TMValue_RFCal))/1000;
+
+		Capprox += TComp;
+
+		if (Capprox < 0)
+			Capprox = 0;
+		else if (Capprox > 255)
+			Capprox = 255;
+
+
+		/* TODO Temperature compensation. There is defenitely a scale factor */
+		/*      missing in the datasheet, so leave it out for now.           */
+		state->m_Regs[EB14] = Capprox;
+
+		status = UpdateReg(state, EB14);
+		if (status < 0)
+			break;
+
+	} while (0);
+	return status;
+}
+
+static int ChannelConfiguration(struct tda_state *state,
+				u32 Frequency, int Standard)
+{
+
+	s32 IntermediateFrequency = m_StandardTable[Standard].m_IFFrequency;
+	int status = 0;
+
+	u8 BP_Filter = 0;
+	u8 RF_Band = 0;
+	u8 GainTaper = 0;
+	u8 IR_Meas = 0;
+
+	state->IF = IntermediateFrequency;
+	/* printk("tda18271c2dd: %s Freq = %d Standard = %d IF = %d\n", __func__, Frequency, Standard, IntermediateFrequency); */
+	/* get values from tables */
+
+	if (!(SearchMap1(m_BP_Filter_Map, Frequency, &BP_Filter) &&
+	       SearchMap1(m_GainTaper_Map, Frequency, &GainTaper) &&
+	       SearchMap1(m_IR_Meas_Map, Frequency, &IR_Meas) &&
+	       SearchMap4(m_RF_Band_Map, Frequency, &RF_Band))) {
+
+		printk(KERN_ERR "tda18271c2dd: %s SearchMap failed\n", __func__);
+		return -EINVAL;
+	}
+
+	do {
+		state->m_Regs[EP3] = (state->m_Regs[EP3] & ~0x1F) | m_StandardTable[Standard].m_EP3_4_0;
+		state->m_Regs[EP3] &= ~0x04;   /* switch RFAGC to high speed mode */
+
+		/* m_EP4 default for XToutOn, CAL_Mode (0) */
+		state->m_Regs[EP4] = state->m_EP4 | ((Standard > HF_AnalogMax) ? state->m_IFLevelDigital : state->m_IFLevelAnalog);
+		/* state->m_Regs[EP4] = state->m_EP4 | state->m_IFLevelDigital; */
+		if (Standard <= HF_AnalogMax)
+			state->m_Regs[EP4] = state->m_EP4 | state->m_IFLevelAnalog;
+		else if (Standard <= HF_ATSC)
+			state->m_Regs[EP4] = state->m_EP4 | state->m_IFLevelDVBT;
+		else if (Standard <= HF_DVBC)
+			state->m_Regs[EP4] = state->m_EP4 | state->m_IFLevelDVBC;
+		else
+			state->m_Regs[EP4] = state->m_EP4 | state->m_IFLevelDigital;
+
+		if ((Standard == HF_FM_Radio) && state->m_bFMInput)
+			state->m_Regs[EP4] |= 0x80;
+
+		state->m_Regs[MPD] &= ~0x80;
+		if (Standard > HF_AnalogMax)
+			state->m_Regs[MPD] |= 0x80; /* Add IF_notch for digital */
+
+		state->m_Regs[EB22] = m_StandardTable[Standard].m_EB22;
+
+		/* Note: This is missing from flowchart in TDA18271 specification ( 1.5 MHz cutoff for FM ) */
+		if (Standard == HF_FM_Radio)
+			state->m_Regs[EB23] |=  0x06; /* ForceLP_Fc2_En = 1, LPFc[2] = 1 */
+		else
+			state->m_Regs[EB23] &= ~0x06; /* ForceLP_Fc2_En = 0, LPFc[2] = 0 */
+
+		status = UpdateRegs(state, EB22, EB23);
+		if (status < 0)
+			break;
+
+		state->m_Regs[EP1] = (state->m_Regs[EP1] & ~0x07) | 0x40 | BP_Filter;   /* Dis_Power_level = 1, Filter */
+		state->m_Regs[EP5] = (state->m_Regs[EP5] & ~0x07) | IR_Meas;
+		state->m_Regs[EP2] = (RF_Band << 5) | GainTaper;
+
+		state->m_Regs[EB1] = (state->m_Regs[EB1] & ~0x07) |
+			(state->m_bMaster ? 0x04 : 0x00); /* CALVCO_FortLOn = MS */
+		/* AGC1_always_master = 0 */
+		/* AGC_firstn = 0 */
+		status = UpdateReg(state, EB1);
+		if (status < 0)
+			break;
+
+		if (state->m_bMaster) {
+			status = CalcMainPLL(state, Frequency + IntermediateFrequency);
+			if (status < 0)
+				break;
+			status = UpdateRegs(state, TM, EP5);
+			if (status < 0)
+				break;
+			state->m_Regs[EB4] |= 0x20;    /* LO_forceSrce = 1 */
+			status = UpdateReg(state, EB4);
+			if (status < 0)
+				break;
+			msleep(1);
+			state->m_Regs[EB4] &= ~0x20;   /* LO_forceSrce = 0 */
+			status = UpdateReg(state, EB4);
+			if (status < 0)
+				break;
+		} else {
+			u8 PostDiv = 0;
+			u8 Div;
+			status = CalcCalPLL(state, Frequency + IntermediateFrequency);
+			if (status < 0)
+				break;
+
+			SearchMap3(m_Cal_PLL_Map, Frequency + IntermediateFrequency, &PostDiv, &Div);
+			state->m_Regs[MPD] = (state->m_Regs[MPD] & ~0x7F) | (PostDiv & 0x77);
+			status = UpdateReg(state, MPD);
+			if (status < 0)
+				break;
+			status = UpdateRegs(state, TM, EP5);
+			if (status < 0)
+				break;
+
+			state->m_Regs[EB7] |= 0x20;    /* CAL_forceSrce = 1 */
+			status = UpdateReg(state, EB7);
+			if (status < 0)
+				break;
+			msleep(1);
+			state->m_Regs[EB7] &= ~0x20;   /* CAL_forceSrce = 0 */
+			status = UpdateReg(state, EB7);
+			if (status < 0)
+				break;
+		}
+		msleep(20);
+		if (Standard != HF_FM_Radio)
+			state->m_Regs[EP3] |= 0x04;    /* RFAGC to normal mode */
+		status = UpdateReg(state, EP3);
+		if (status < 0)
+			break;
+
+	} while (0);
+	return status;
+}
+
+static int sleep(struct dvb_frontend *fe)
+{
+	struct tda_state *state = fe->tuner_priv;
+
+	StandBy(state);
+	return 0;
+}
+
+static int init(struct dvb_frontend *fe)
+{
+	return 0;
+}
+
+static void release(struct dvb_frontend *fe)
+{
+	kfree(fe->tuner_priv);
+	fe->tuner_priv = NULL;
+}
+
+
+static int set_params(struct dvb_frontend *fe)
+{
+	struct tda_state *state = fe->tuner_priv;
+	int status = 0;
+	int Standard;
+	u32 bw = fe->dtv_property_cache.bandwidth_hz;
+	u32 delsys  = fe->dtv_property_cache.delivery_system;
+
+	state->m_Frequency = fe->dtv_property_cache.frequency;
+
+	switch (delsys) {
+	case  SYS_DVBT:
+	case  SYS_DVBT2:
+		switch (bw) {
+		case 6000000:
+			Standard = HF_DVBT_6MHZ;
+			break;
+		case 7000000:
+			Standard = HF_DVBT_7MHZ;
+			break;
+		case 8000000:
+			Standard = HF_DVBT_8MHZ;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case SYS_DVBC_ANNEX_A:
+	case SYS_DVBC_ANNEX_C:
+		if (bw <= 6000000)
+			Standard = HF_DVBC_6MHZ;
+		else if (bw <= 7000000)
+			Standard = HF_DVBC_7MHZ;
+		else
+			Standard = HF_DVBC_8MHZ;
+		break;
+	default:
+		return -EINVAL;
+	}
+	do {
+		status = RFTrackingFiltersCorrection(state, state->m_Frequency);
+		if (status < 0)
+			break;
+		status = ChannelConfiguration(state, state->m_Frequency,
+					      Standard);
+		if (status < 0)
+			break;
+
+		msleep(state->m_SettlingTime);  /* Allow AGC's to settle down */
+	} while (0);
+	return status;
+}
+
+#if 0
+static int GetSignalStrength(s32 *pSignalStrength, u32 RFAgc, u32 IFAgc)
+{
+	if (IFAgc < 500) {
+		/* Scale this from 0 to 50000 */
+		*pSignalStrength = IFAgc * 100;
+	} else {
+		/* Scale range 500-1500 to 50000-80000 */
+		*pSignalStrength = 50000 + (IFAgc - 500) * 30;
+	}
+
+	return 0;
+}
+#endif
+
+static int get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+	struct tda_state *state = fe->tuner_priv;
+
+	*frequency = state->IF;
+	return 0;
+}
+
+static int get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
+{
+	/* struct tda_state *state = fe->tuner_priv; */
+	/* *bandwidth = priv->bandwidth; */
+	return 0;
+}
+
+
+static const struct dvb_tuner_ops tuner_ops = {
+	.info = {
+		.name = "NXP TDA18271C2D",
+		.frequency_min_hz  =  47125 * kHz,
+		.frequency_max_hz  =    865 * MHz,
+		.frequency_step_hz =  62500
+	},
+	.init              = init,
+	.sleep             = sleep,
+	.set_params        = set_params,
+	.release           = release,
+	.get_if_frequency  = get_if_frequency,
+	.get_bandwidth     = get_bandwidth,
+};
+
+struct dvb_frontend *tda18271c2dd_attach(struct dvb_frontend *fe,
+					 struct i2c_adapter *i2c, u8 adr)
+{
+	struct tda_state *state;
+
+	state = kzalloc(sizeof(struct tda_state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+
+	fe->tuner_priv = state;
+	state->adr = adr;
+	state->i2c = i2c;
+	memcpy(&fe->ops.tuner_ops, &tuner_ops, sizeof(struct dvb_tuner_ops));
+	reset(state);
+	InitCal(state);
+
+	return fe;
+}
+EXPORT_SYMBOL_GPL(tda18271c2dd_attach);
+
+MODULE_DESCRIPTION("TDA18271C2 driver");
+MODULE_AUTHOR("DD");
+MODULE_LICENSE("GPL");