diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda18271c2dd.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271c2dd.c | 1246 |
1 files changed, 0 insertions, 1246 deletions
diff --git a/drivers/media/dvb/frontends/tda18271c2dd.c b/drivers/media/dvb/frontends/tda18271c2dd.c deleted file mode 100644 index ad7c72e8f517..000000000000 --- a/drivers/media/dvb/frontends/tda18271c2dd.c +++ /dev/null @@ -1,1246 +0,0 @@ -/* - * tda18271c2dd: Driver for the TDA18271C2 tuner - * - * Copyright (C) 2010 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. - * - * - * 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 - * Or, point your browser to http://www.gnu.org/copyleft/gpl.html - */ - -#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 "dvb_frontend.h" - -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 temperatur */ - - 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[nRegs+1]; - - 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(struct SMap Map[], - u32 Frequency, u8 *pParam) -{ - int i = 0; - - while ((Map[i].m_Frequency != 0) && (Frequency > Map[i].m_Frequency)) - i += 1; - if (Map[i].m_Frequency == 0) - return false; - *pParam = Map[i].m_Param; - return true; -} - -static bool SearchMap2(struct SMapI Map[], - u32 Frequency, s32 *pParam) -{ - int i = 0; - - while ((Map[i].m_Frequency != 0) && - (Frequency > Map[i].m_Frequency)) - i += 1; - if (Map[i].m_Frequency == 0) - return false; - *pParam = Map[i].m_Param; - return true; -} - -static bool SearchMap3(struct SMap2 Map[], u32 Frequency, - u8 *pParam1, u8 *pParam2) -{ - int i = 0; - - while ((Map[i].m_Frequency != 0) && - (Frequency > Map[i].m_Frequency)) - i += 1; - if (Map[i].m_Frequency == 0) - return false; - *pParam1 = Map[i].m_Param1; - *pParam2 = Map[i].m_Param2; - return true; -} - -static bool SearchMap4(struct SRFBandMap Map[], - u32 Frequency, u8 *pRFBand) -{ - int i = 0; - - while (i < 7 && (Frequency > Map[i].m_RF_max)) - i += 1; - if (i == 7) - return false; - *pRFBand = 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 allways 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 workarround 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; - } - status = status; - 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] |= 80; - - 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 int release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - - -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; - } - 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 struct dvb_tuner_ops tuner_ops = { - .info = { - .name = "NXP TDA18271C2D", - .frequency_min = 47125000, - .frequency_max = 865000000, - .frequency_step = 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"); |
