Orange Pi5 kernel

// 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");