#include "w78e365.h"

#define uchar unsigned char	
#define uint unsigned int		 
#define uint32 unsigned long 	


#define FWD_CMD_LOGIN   0x4      
#define FWD_CMD_WRITE   0x2
#define FWD_CMD_READ    0x1
#define FWD_CMD_DISABLE 0x5

#define	on	0;
#define	off	1;
#define	STX	0x02
#define	ETX	0x03
#define	MAX_COMMAND_LENGTH	15
#define CAPTURE_SIZE (2*11*4)    

#define UART_MESSAGE_OK          0x00
#define ERR_ASIC_ANTENNA_FAULT   0x01
#define ERR_UART_ERROR_FLAG      0x04
#define ERR_UART_OVERFLOW        0x05
#define ERR_UART_WRONG_ICMD      0x06
#define ERR_UART_BAD_CRC         0x07
#define ERR_UART_UNKNOWN_CMD     0x08
#define ERR_UART_NO_ETX          0x09
#define ERR_UART_INTERBYTE_ERR   0x0A
#define ERR_EM4469_FLOWLINK_ERR  0x0B
#define ERR_EM4469_WRONG_DE      0x0C
#define ERR_EM4469_WRONG_DR      0x0D
#define ERR_EM4469_PARITY_ERR    0x10
#define ERR_EM4469_BAD_CONF_DATA 0x11
#define ERR_EM4469_NACK          0x12
#define ERR_EM4469_NEITHER_ACK   0x13
#define ERR_EM4469_NO_VALID_DR   0x14
#define ERR_EM4469_BAD_RAW       0x15



uchar MaxCaptureHalfDateRate;
uchar MaxCaptureDateRate;

uchar ReaderCommand[MAX_COMMAND_LENGTH];




uchar check_stat;

uint get_settings_low;
uint get_settings_hi;

bit	route_usuall_animal;




uchar config_encoder;                 // see EM4469 spec
uchar config_data_rate;               // see EM4469 spec
uchar config_delayed;                 // see EM4469 spec
uchar config_lwr;                     // see EM4469 spec
uchar config_raw;                     // see EM4469 spec
void (*ReadDecode)(void);                 //decoder routine variable
void (*WriteDecode)(void);                 //decoder routine variable
uchar lwr;                          //last word read
uchar delayed;                      //delayed value
uchar decode_number;                //decoder routine number
uchar halfDataRate;                 //half period data rate modul
uchar raw;                          //raw flag to capture read after write response
uchar forward_link_type;            //forward link modulation type

uchar capture_data[CAPTURE_SIZE];          //maximum bytes captured at once
uint maxCaptureTimeLow;           //lower part of current maximum capture time (used to initialise TCNT1)
uchar  maxCaptureTimeHi;            //upper part of current maximum capture time (expected value 0xFF or 0xFE only)
uint read_tag_memory_word_low;      // Read Cmd content low
uint read_tag_memory_word_hi;       // Read Cmd content hi
uint maxTRead;                    //current datarate maximum response capture time
uint maxTLogin;                   //current datarate maximum response capture time
uint maxTWrite;                   //current datarate maximum response capture time
uint32 maxTWriteRaw;                //current datarate maximum response capture time
uint maxTDisable;                 //current datarate maximum response capture time
uint32 maxTDefaultRead;             //current datarate maximum response capture time
uint tpp_period;                  //Tpp pause in RF clocks
uint twr_period;                  //Twr write time pause in RF clocks




uchar last_valid;                   //last valid value for invalid sequence compression

uchar captured_bit_count; 	//store_bit current capture bit counter
uchar capture_cnt;        //store_bit current capture byte index
uchar bit_pos;                      //bit position in demodulation
uchar enable_capture;             //enable capture ( 1=capture enable)
uchar last_bit;                     //for biphase and miller usag
 

uint last_capture;                //counter1 is now reset at capture start, we make a difference

uchar captured_byte;     		 //store_bit current capture bits
uchar captured_valid;     		//store_bit current capture valid bits
                                     		 //between current and last value
uchar  capture_time[120];
uchar *capture_read_time_data_ptr;	
uchar capture_check;
uchar	capture_check_count;
bit	buffer_capture_check;
uchar	compute_capture_check;
uchar debug_mode;

uchar fwd_bit_sz;                          //forwardlink bit counter

uchar *fwd_write_ptr;                     //forwardlink bit pointer

uchar currentMaxTimeHi;             //actual hi value of maximum capture time

bit flag_wait;

uchar MaxCaptureHalfDateRate;
uchar MaxCaptureDateRate;

uchar PCCommand[MAX_COMMAND_LENGTH];

uchar fwd_bit_phase;              //forwardlink bit phase

uchar forwardLink_data[64];                //array of forwarded bits 
uchar *forward_ptr;                       //ptr for forward message preparation



void SendResponse(unsigned char i);
uchar Prepare_Cmd( uchar cmd ); 
uchar Prepare_Addr( uchar addr );
void SendForward(uchar fwd_bit_count);
void Wait(uint period);
uchar Prepare_Data( uint data_low, uint data_hi);
void ManchesterReadCapture(void);
void ManchesterWriteCapture(void);
void BiphaseReadCapture(void);
void BiphaseWriteCapture(void);
uint count_module(void);
void ReadWordToPC(void);
void ReadStatusToPC(void);
void WriteWord(void);
void FieldSwitch(void);
void SetReaderConfiguration(void);
void GetReaderConfiguration(void);
void Disable(void);
void Login(void);
void PCLinkReader(void);
void DefaultRead(void);
void ReadOnlyAutodetection(void);
void ClearCaptureBuffers(void);
void capture(void);
void store_bit(bit b);