fm_i2cdrv1.msa
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MSA
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/********************************************************************************************
philips TEA5767 FM module driver(I2C DRIVER)
writen by GONGJIAN. for 3961
last update 05-3-30 14:57
********************************************************************************************/
#include "actos.h"
module TEA5767HN_DIVER
//----------------------------------------------------------
//for FM_drv
public FM_INIT_Drv //FM initialization
public FM_EXIT_Drv //release bus
public FM_SETFREQ_Drv //FM set frequency
public FM_SEARCH_Drv //Search operation upwards or downwards
public FM_SETMUTE_Drv //Set L and R audio muted or no muted
public FM_STANDBY_Drv //Set standby status
public FM_STEREO_Drv //Set stereo or mono
public FM_GETSTATUS_Drv //Judge preset operation complete
public FM_VolumeSet_Drv
public FM_result
//for FM_i2cdrv2
public FREQ_RF
public WSET_PLLLB
public WSET_PLLHB
public WRITE_BUFFER
public READ_BUFFER
public WSET_HLSI
public buffer
//from FM_i2cdrv2
extern WRITE_ONEFRAME
extern READ_STATUS
extern CALCULATE_PLL
//from I2C_Driver
extern I2C_Init
extern I2C_Exit
//--------------------------------------------------------------------------------------------
RSEG RCODE //口 , 位 ,输入,输出,输入数据,输出数据
WRITE_BUFFER DEFB 80H,00H,00H,00H,00H //Write operation buffer,size 5 bytes
READ_BUFFER DEFB 00H,00H,00H,00H,00H //Read operation buffer,size 5 bytes
WSET_MUTE DEFB 00H //Bit 7 of first byte of write buffer
WSET_SM DEFB 00H //Bit 6 of first byte of write buffer(Search Mode)
WSET_PLLLB DEFB 00H //Bit 5 to 0 of first byte of write buffer
WSET_PLLHB DEFB 00H //Bit 7 to 0 of second byte of write buffer
WSET_SSL DEFB 00H //Bit 6 to 5 of third byte of write buffer(Search Stop Level) //Setting of synthesizer programmable counter for search or preset
WSET_SUD DEFB 00H //Bit 7 of third byte of write buffer(Search up/down)
WSET_SSL1 DEFB 00H
WSET_SSL0 DEFB 00H
WSET_HLSI DEFB 00H //Bit 4 of the third byte of write buffer(HIGH/LOW Side Injection)
WSET_MS DEFB 00H //Bit 3 of the third byte of write buffer(Mono/Stereo)
WSET_MR DEFB 00H //Bit 1 of the third byte of write buffer(Mute Right)
WSET_ML DEFB 00H //Bit 2 of the third byte of write buffer(Mute Left)
WSET_SWP1 DEFB 00H //Bit 0 of the third byte of write buffer(Software programmable port1)
WSET_SWP2 DEFB 00H //Bit 7 of the fourth byte of write buffer(Software programmable port2)
WSET_STBY DEFB 00H //Bit 6 of the fourth byte of write buffer(Standby)
WSET_BL DEFB 00H //Bit 5 of the fourth byte of write buffer(Band Limits)
WSET_XTAL DEFB 01H //Bit 4 of the fourth byte of write buffer
WSET_SMUTE DEFB 00H //Bit 3 of the fourth byte of write buffer(Soft Mute)
WSET_HCC DEFB 01H //Bit 2 of the fourth byte of write buffer(High Cut Control)
WSET_SNC DEFB 01H //Bit 1 of the fourth byte of write buffer(Stereo noise cancelling)
WSET_SI DEFB 00H //Bit 0 of the fourth byte of write buffer(Search indicator)
WSET_PLLREF DEFB 00H //Bit 7 of the fifth byte of write buffer
WSET_DTC DEFB 00H //Bit 6 of the fifth byte of write buffer.Bit 5 to 0 is not used,position don't care
RSET_RF DEFB 00H //Bit 7 of the first byte of read buffer(Ready Flag)
RSET_BLF DEFB 00H //Bit 6 of the first byte of read buffer(Band Limit Flag)
RSET_STEREO DEFB 00H //Bit 7 of the third byte of read buffer(Stereo indication)
RSET_IFCOUNTER DEFB 00H //Bit 6 to 0 of the third byte of read buffer ，IF Counter result
RSET_LEV DEFB 00H //Bit 7 to 4 of the fourth byte of read buffer，Level ADC output
FREQ_RF DEFB 00H,00H //省去最高位1
FM_result DEFB 00H //00 mean error,1 mean true
FMadclevel0 DEFB 00H
FMadclevel1 DEFB 00H
FMadclevel2 DEFB 00H
Searchtemp_IF DEFB 00H
Searchtemp_LEV DEFB 00H
Searchtemp_STEREO DEFB 00H
tempresult_LEV DEFB 00H
SOFT_SUD DEFB 00H
SOFT_SLEV DEFB 00H
VolumeLEV DEFB 00H
Analogtempbuf DEFB 00H,00H
buffer defs 5
#define I2Cmode 00H //I2C SPEED:00H:100K;40H:400K
#define LEVdiffrence 03h
#define checkIFcounter
#define IFhighlimit 3Eh
#define IFlowlimit 31h
#define checkstereo
//-------------------------------------------------------------------------------------------
RSEG FM_CTRL_D
/********************************************************************************************
Function is FM initialization and enable bus.
Input parameter:DE(DE is first address of input structurn).
1.japanese FM,UE fm band info.
2.Xtal flag
********************************************************************************************/
FM_INIT_Drv:
PUSH AF
PUSH BC
PUSH DE
LD A,(DE) //band info.
LD (LWRD WSET_BL),A
INC DE
LD A,(DE) //crystal info.
LD (LWRD SOFT_SLEV),A
INC DE
LD A,(DE) //crystal info.
LD (LWRD WSET_XTAL),A
LD A,00H
LD (LWRD WSET_STBY),A
LD A,00H
LD (LWRD WSET_SM),A
/*
LD B,04H
IN A,(0D5H)
OR B
OUT (0D5H),A
LD B,54H
IN A,(0DDH)
OR B
OUT (0DDH),A
LD B,95H
IN A,(0D4H)
OR B
OUT (0D4H),A
*/
LD DE,LWRD Analogtempbuf
LD A,08H
LD (DE),A
//CALL LWRD EnableAIn
mEnableAIn
LD E,02H
LD C,05H
//CALL LWRD SetAGain
mSetAGain
//change by ybfu
LD DE,LWRD Analogtempbuf
LD A,02H
LD (DE),A
INC DE
//volume set!!
LD A,0fH
LD (DE),A
DEC DE
//CALL LWRD EnablePA
mPA_Enable
LD E,I2Cmode
CALL LWRD I2C_Init
//release standby
POP DE
PUSH DE
LD A,00H
LD (DE),A
CALL LWRD FM_STANDBY_Drv
//CALL LWRD testFMi2c
POP DE
POP BC
POP AF
RET
//============================================================
/*************************************************************
Function is FM exit and release bus.
入口： no
**************************************************************/
FM_EXIT_Drv:
PUSH AF
PUSH BC
CALL LWRD I2C_Exit
/*
LD A,40H
OUT (09EH),A
LD A,00H
OUT (0D5H),A
LD A,14H
OUT (0DDH),A
LD A,05H
OUT (0D4H),A
*/
//CALL LWRD DisableAIn
//CALL LWRD DisablePA
mDisableAIn
mPA_Disable
POP BC
POP AF
RET
//==============================================================
/***************************************************************
Function is preset FM to the current frequency.
Input parameter:DE(DE is first address of input structurn).
1.Initialization preset frequency(2 bytes).
****************************************************************/
FM_SETFREQ_Drv:
PUSH AF
PUSH DE
LD A,(DE) //FREQ_RF LOW byte
LD (LWRD FREQ_RF),A
INC DE
LD A,(DE) //FREQ_RF middle byte
LD (LWRD FREQ_RF+1),A
CALL LWRD FM_setfrequency
POP DE
POP AF
RET
//==============================================================
/***************************************************************
Function is read back stereo info. and current frequency
Input parameter:DE(DE is first address of input structurn).
1.Output address.
Output parameter:DE(DE is first address of Output structurn).
1.Stereo Indication(1 byte).
5.Current frequency(2 bytes,low byte is frong).
*****************************************************************/
FM_GETSTATUS_Drv:
PUSH AF
PUSH HL
PUSH DE
LD D,3
FM_GETSTATUS_loop1:
DEC D
JR Z,FM_GETSTATUS_err_exit
CALL LWRD READ_STATUS
CP 0
JR Z,FM_GETSTATUS_loop1
CALL LWRD DISASSEMBLE_RB
JR FM_GETSTATUS_exit
FM_GETSTATUS_err_exit:
LD A,01H
LD (LWRD FM_result),A
LD (LWRD RSET_STEREO),A
FM_GETSTATUS_exit:
POP DE
PUSH DE
LD A,(LWRD RSET_STEREO) //0-sterreo;1-mono;
BIT 0,A
JR NZ,FM_GETSTATUS_loop2
LD A,02H
FM_GETSTATUS_loop2:
DEC A
LD (DE),A
INC DE
LD HL,LWRD FREQ_RF
LD A,(HL)
LD (DE),A
INC DE
INC HL
LD A,(HL)
LD (DE),A
POP DE
POP HL
POP AF
RET
//==========================================================
/*********************************************************
Function is set mute.
Input parameter:DE(DE is first address of input structure)
1.Mute flag(1 byte).
Output parameter:no
Operation condition:
***********************************************************/
FM_SETMUTE_Drv:
PUSH AF
PUSH BC
PUSH HL
LD HL,LWRD WRITE_BUFFER
RES 7,(HL)
LD A,(DE)
LD (LWRD WSET_MUTE),A //The L and R audio muted
CP 00H
JR Z,FM_SETMUTE_start
SET 7,(HL)
LD C,3
FM_SETMUTE_start:
DEC C
JR Z,FM_SETMUTE_exit
CALL LWRD WRITE_ONEFRAME
CP 00H
JR Z,FM_SETMUTE_start
FM_SETMUTE_exit:
LD A,(DE)
AND A
JR NZ,FM_SETMUTE_exit1
IN A,(0D5H)
SET 2,A
OUT (0D5H),A
JR FM_SETMUTE_exit2
FM_SETMUTE_exit1:
IN A,(0D5H)
RES 2,A
OUT (0D5H),A
FM_SETMUTE_exit2:
POP HL
POP BC
POP AF
RET
//======================================================
/*******************************************************
Function is set standby.
Input parameter:DE(DE is first address of input structure).
1.Standby flag(1 byte).
Output parameter:no.
Operation condition:
********************************************************/
FM_STANDBY_Drv:
PUSH AF
PUSH BC
PUSH HL
LD HL,LWRD WRITE_BUFFER+3
RES 6,(HL)
LD A,(DE)
LD (LWRD WSET_STBY),A //Standby
CP 00H
JR Z,FM_STANDBY_start
SET 6,(HL)
LD C,3
FM_STANDBY_start:
DEC C
JR Z,FM_STANDBY_exit
CALL LWRD WRITE_ONEFRAME
CP 00H
JR Z,FM_STANDBY_start
FM_STANDBY_exit:
POP HL
POP BC
POP AF
RET
//=============================================================
/**************************************************************
Function is set mono or stereo.
Input parameter:DE(DE is first address of input structure).
1.Stereo flag(1 byte).
Output parameter:no.
Operation condition:
*************************************************************/
FM_STEREO_Drv:
PUSH AF
PUSH BC
PUSH HL
LD HL,LWRD WRITE_BUFFER+2
RES 3,(HL)
LD A,(DE)
LD (LWRD WSET_MS),A //Mono or stereo
CP 00H
JR Z,FM_STEREO_start
SET 3,(HL)
LD C,3
FM_STEREO_start:
DEC C
JR Z,FM_STEREO_exit
CALL LWRD WRITE_ONEFRAME
CP 00H
JR Z,FM_STEREO_start
FM_STEREO_exit:
POP HL
POP BC
POP AF
RET
//=============================================================
/**************************************************************
Function is set volume
Input parameter:DE(DE is first address of input structure).
1.volume level.
*************************************************************/
FM_VolumeSet_Drv:
PUSH AF
PUSH BC
PUSH DE
LD A,(DE)
LD (LWRD VolumeLEV),A
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