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R503_fingerprint.c
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R503_fingerprint.c
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#include "R503_fingerprint.h"
int __argc = 0;
char ** __argv = NULL;
void HandleFinger(int aGpio, int aLevel, uint32_t aTick, void * aData)
{
fprintf(stdout, "finger pressed\n");
}
void HandleSignal(int aSignum, void * aData)
{
*(int*)aData = TRUE;
}
int SetArgv(char * const aStr, const int aFree)
{
if (!__argv && aStr)
{
__argv = (char**)malloc(sizeof(char[1][100]));
__argv[0] = aStr; __argc = -1;
return TRUE;
}
if ((__argc == -1) && aFree)
{
free(__argv); __argv = NULL;
return FALSE;
}
return FALSE;
}
int MaxPacketDataLen()
{ return R503_MAX_PACKET_DATA_LENGTH; }
uint64_t GetMicroTick()
{
uint64_t Val = 0;
#ifdef PIGPIO_PERMITTED
Val = (uint64_t)gpioTick();
#else
struct timeval tval;
gettimeofday(&tval, NULL);
Val = ((uint64_t)tval.tv_sec * (uint64_t)1000000) + (uint64_t)tval.tv_usec;
#endif /* PIGPIO_PERMITTED */
return Val;
}
void WaitMicros(const uint32_t aValue)
{
#ifdef PIGPIO_PERMITTED
gpioDelay(aValue);
#else
usleep(aValue);
#endif /* PIGPIO_PERMITTED */
}
int OpenFpSerialPort()
{
int is_allocated = SetArgv("OpenFpSerialPort", FALSE), Serhandle = 0;
#ifdef PIGPIO_PERMITTED
if ((Serhandle = serOpen(UART_PORT_NAME, UART_BAUD_RATE, 0)) < 0)
#else
if ((Serhandle = open(UART_PORT_NAME, O_RDWR | O_NONBLOCK)) < 0)
#endif
{
fprintf(stderr, "\n%s: ERROR! Could not open serial port %s. (code %d)\n", __argv[0], UART_PORT_NAME, ETtyBadOpen);
SetArgv(NULL, is_allocated); return ETtyBadOpen;
}
#ifndef PIGPIO_PERMITTED
struct termios tty;
if (tcgetattr(Serhandle, &tty))
{
fprintf(stderr, "\n%s: ERROR! Could not get parameters of serial port %s. (code %d)\n", __argv[0], UART_PORT_NAME, ETtyBadOpen);
SetArgv(NULL, is_allocated); return ETtyBadOpen;
}
cfsetospeed(&tty, UART_BAUD_RATE);
cfsetispeed(&tty, UART_BAUD_RATE);
tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8;
tty.c_cflag &= ~(PARENB | PARODD);
tty.c_cflag &= ~CSTOPB;
tty.c_cflag &= ~CRTSCTS;
tty.c_cflag |= (CLOCAL | CREAD);
tty.c_cflag |= 0;
tty.c_lflag = 0;
tty.c_iflag &= ~ICANON;
tty.c_iflag &= ~(IXON | IXOFF | IXANY);
tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL);
tty.c_oflag = 0;
tty.c_cc[VMIN] = 0;
tty.c_cc[VTIME] = 0;
if (tcsetattr(Serhandle, TCSANOW, &tty))
{
fprintf(stderr, "\n%s: ERROR! Could not set parameters of serial port %s. (code %d)\n", __argv[0], UART_PORT_NAME, ETtyBadOpen);
SetArgv(NULL, is_allocated); return ETtyBadOpen;
}
#endif /* PIGPIO_PERMITTED */
SetArgv(NULL, is_allocated);
return Serhandle;
}
int CloseFpSerialPort(const unsigned aSerHandle)
{
int is_allocated = SetArgv("CloseFpSerialPort", FALSE), Err = 0;
#ifdef PIGPIO_PERMITTED
if ((Err = serClose(aSerHandle)))
#else
if ((Err = close(aSerHandle)))
#endif /* PIGPIO_PERMITTED */
fprintf(stdout, "\n%s: WARNING! Could not close serial port with handle %u, was not assigned to any open port. (code %d)", __argv[0], aSerHandle, Err);
SetArgv(NULL, is_allocated);
return Err;
}
int DataOnFpSerial(const unsigned aSerHandle)
{
int is_allocated = SetArgv("DataOnFpSerial", FALSE), Bytes = 0;
#ifdef PIGPIO_PERMITTED
if ((Bytes = serDataAvailable(aSerHandle)) == PI_BAD_HANDLE)
#else
if (ioctl(aSerHandle, FIONREAD, &Bytes) < 0)
#endif /* PIGPIO_PERMITTED */
{
fprintf(stderr, "\n%s: ERROR! Bad serial handle. (code %d)\n", __argv[0], ETtyBadHandle);
SetArgv(NULL, is_allocated); return ETtyBadHandle;
}
SetArgv(NULL, is_allocated);
return Bytes;
}
int WriteFpByte(const unsigned aSerHandle, const uint8_t aByte)
{
int Err = 0;
#ifdef PIGPIO_PERMITTED
if ((Err = serWriteByte(aSerHandle, (unsigned)aByte)))
#else
if ((Err = write(aSerHandle, &aByte, 1)) < 0)
#endif /* PIGPIO_PERMITTED */
return ETtyBadWrite;
return EOk;
}
int ReadFpByte(const unsigned aSerHandle)
{
int Byte = 0;
#ifdef PIGPIO_PERMITTED
if ((Byte = serReadByte(aSerHandle)) < 0)
#else
if (read(aSerHandle, &Byte, 1) < 0)
#endif /* PIGPIO_PERMITTED */
return ETtyBadRead;
return Byte;
}
#ifdef PIGPIO_PERMITTED
int GpioConfig(int *aIsrData, int *aSigData)
{
int is_allocated = SetArgv("GpioConfig", FALSE);
if (gpioInitialise() < 0)
{
fprintf(stderr, "\n%s: ERROR! Could not initialise pigpio library. (code %d)\n", __argv[0], EGpioBadInit);
SetArgv(NULL, is_allocated); return EGpioBadInit;
}
if (gpioSetMode(GPIO_FINGER_WAKEUP, PI_INPUT) == PI_BAD_GPIO)
{
fprintf(stderr, "\n%s: ERROR! Could not set input mode on GPIO %d. (code %d)\n", __argv[0], GPIO_FINGER_WAKEUP, EGpioBadMode);
SetArgv(NULL, is_allocated); return EGpioBadMode;
}
if (gpioSetPullUpDown(GPIO_FINGER_WAKEUP, PI_PUD_OFF))
{
fprintf(stderr, "\n%s: ERROR! Could not set off pull up/down on GPIO %d. (code %d)\n", __argv[0], GPIO_FINGER_WAKEUP, EGpioBadPud);
SetArgv(NULL, is_allocated); return EGpioBadPud;
}
if (aSigData)
{
if (gpioSetSignalFuncEx(SIGNAL_TERMINATE, HandleSignal, (void*)aSigData))
{
fprintf(stderr, "\n%s: ERROR! Could not set signal function on signal %d. (code %d)\n", __argv[0], SIGNAL_TERMINATE, EGpioBadISR);
SetArgv(NULL, is_allocated); return EGpioBadISR;
}
}
if (aIsrData)
{
if(gpioSetISRFuncEx(GPIO_FINGER_WAKEUP, ISR_DETECTION_LEVEL, 0, HandleFinger, (void*)aIsrData))
{
fprintf(stderr, "\n%s: ERROR! Could not set ISR function on GPIO %d. (code %d)\n", __argv[0], GPIO_FINGER_WAKEUP, EGpioBadISR);
SetArgv(NULL, is_allocated); return EGpioBadISR;
}
}
SetArgv(NULL, is_allocated);
return EOk;
}
int GpioCleanup()
{
int is_allocated = SetArgv("GpioCleanup", FALSE);
if (gpioSetSignalFuncEx(SIGNAL_TERMINATE, 0, 0))
{
fprintf(stderr, "\n%s: ERROR! Could not turn off signal handling on signal %d. (code %d)\n", __argv[0], SIGNAL_TERMINATE, EGpioBadISR);
SetArgv(NULL, is_allocated); return EGpioBadISR;
}
if(gpioSetISRFuncEx(GPIO_FINGER_WAKEUP, ISR_DETECTION_LEVEL, 0, 0, 0))
{
fprintf(stderr, "\n%s: ERROR! Could not turn off ISR handling on GPIO %d. (code %d)\n", __argv[0], GPIO_FINGER_WAKEUP, EGpioBadISR);
SetArgv(NULL, is_allocated); return EGpioBadISR;
}
gpioTerminate();
SetArgv(NULL, is_allocated);
return EOk;
}
#endif /* PIGPIO_PERMITTED */
int BufferAlloc(uint8_t ** const aBuffer, const size_t aLen)
{
if (!aBuffer)
return ENullPtr;
if (*aBuffer)
BufferDealloc(aBuffer);
*aBuffer = (uint8_t*)malloc(aLen * sizeof(uint8_t));
if (!*aBuffer)
return EBadAlloc;
memset(*aBuffer, 0, aLen);
return EOk;
}
void BufferDealloc(uint8_t ** aBuffer)
{
if (aBuffer)
{
free(*aBuffer);
*aBuffer = NULL;
}
}
int CtorFpPacket(fp_packet_r503 * const aStruct, const uint8_t aId, const uint16_t aLen, const uint8_t * const aData, const unsigned aSerHandle)
{
if (!aStruct || !aData)
return ENullPtr;
aStruct->header = R503_MSG_HEADER;
aStruct->address = R503_DEFAULT_ADDRESS;
aStruct->package_id = aId;
aStruct->package_length = aLen;
if (BufferAlloc(&aStruct->data, aLen - sizeof(aStruct->checksum)))
{
DtorFpPacket(aStruct);
return EBadAlloc;
}
memcpy(aStruct->data, aData, aLen - sizeof(aStruct->checksum));
aStruct->checksum = aStruct->package_id + (uint8_t)(aStruct->package_length >> 8) + (uint8_t)(aStruct->package_length & 0xFF);
for (size_t data_byte = 0; data_byte < aStruct->package_length - 2; ++data_byte)
aStruct->checksum += aStruct->data[data_byte];
aStruct->send_packet_length = sizeof(aStruct->header) + sizeof(aStruct->address) + sizeof(aStruct->package_id) + sizeof(aStruct->package_length) + aStruct->package_length;
if (BufferAlloc(&aStruct->send_packet, aStruct->send_packet_length))
{
DtorFpPacket(aStruct);
return EBadAlloc;
}
aStruct->send_packet[0] = aStruct->header >> 8;
aStruct->send_packet[1] = aStruct->header & 0xFF;
aStruct->send_packet[2] = aStruct->address >> 24;
aStruct->send_packet[3] = (aStruct->address >> 16) & 0xFF;
aStruct->send_packet[4] = (aStruct->address >> 8) & 0xFF;
aStruct->send_packet[5] = aStruct->address & 0xFF;
aStruct->send_packet[6] = aStruct->package_id;
aStruct->send_packet[7] = aStruct->package_length >> 8;
aStruct->send_packet[8] = aStruct->package_length & 0xFF;
for (size_t data_byte = 0; data_byte < aStruct->package_length; ++data_byte)
aStruct->send_packet[9 + data_byte] = aStruct->data[data_byte];
aStruct->send_packet[aStruct->send_packet_length - 2] = aStruct->checksum >> 8;
aStruct->send_packet[aStruct->send_packet_length - 1] = aStruct->checksum & 0xFF;
aStruct->serial_handle = aSerHandle;
return EOk;
}
void DtorFpPacket(fp_packet_r503 * aStruct)
{
if (aStruct)
{
aStruct->header = 0;
aStruct->address = 0;
aStruct->package_id = 0;
aStruct->package_length = 0;
aStruct->checksum = 0;
aStruct->send_packet_length = 0;
aStruct->serial_handle = 0;
BufferDealloc(&aStruct->data);
BufferDealloc(&aStruct->send_packet);
}
}
int GetFingerImg(const int * const aKillSig)
{
int Err = 0;
if ((Err = OpenFpSerialPort()) < 0)
return ETtyBadOpen;
unsigned serhandle = (unsigned)Err;
int is_allocated = SetArgv("GetFingerImg", FALSE);
fp_packet_r503 finger_pckt = { 0, };
uint8_t data[1] = { R503_INSTR_GET_FINGER_IMG };
if ((Err = CtorFpPacket(&finger_pckt, R503_PACKET_CMD, 0x3, data, serhandle)))
{
fprintf(stderr, "\n%s: ERROR! Could not create packet for finger IMG storage command. (code %d)\n", __argv[0], Err);
CloseFpSerialPort(serhandle); SetArgv(NULL, is_allocated);
return Err;
}
fprintf(stdout, "\n%s: \tPlace finger on sensor for detection ...\n", __argv[0]);
SetFpLed(R503_LED_FLASHING, R503_LED_PURPLE, 0x20, R503_LED_CYCLES_INFINITE);
Err = R503_ACK_ERR_NO_FINGER;
while (Err != R503_ACK_OK)
{
if ((Err = SendFpPacket(&finger_pckt)))
{
SetFpLed(R503_LED_SLOW_OFF, R503_LED_RED, R503_LED_PERIOD_MAX, 0);
DtorFpPacket(&finger_pckt); CloseFpSerialPort(serhandle);
SetArgv(NULL, is_allocated); return Err;
}
Err = GetFpResponse(serhandle);
if ((Err != R503_ACK_OK) && (Err != R503_ACK_ERR_NO_FINGER))
{
fprintf(stderr, "\n%s: ERROR! Error when detecting finger. (code %d)\n", __argv[0], Err);
SetFpLed(R503_LED_SLOW_OFF, R503_LED_RED, R503_LED_PERIOD_MAX, 0);
DtorFpPacket(&finger_pckt); CloseFpSerialPort(serhandle);
SetArgv(NULL, is_allocated); return Err;
}
if (aKillSig && *aKillSig)
{
SetFpLed(R503_LED_OFF, 0, 0, 0);
DtorFpPacket(&finger_pckt); CloseFpSerialPort(serhandle);
SetArgv(NULL, is_allocated); return ESigKill;
}
}
fprintf(stdout, "\n%s: \tFinger image stored successfully.\n\n", __argv[0]);
SetFpLed(R503_LED_SLOW_OFF, R503_LED_BLUE, R503_LED_PERIOD_MAX, 0);
DtorFpPacket(&finger_pckt);
CloseFpSerialPort(serhandle);
SetArgv(NULL, is_allocated);
return EOk;
}
int SendFpWithResponse(const uint8_t aId, const uint16_t aLen, const uint8_t * const aData, const unsigned * const aSerHandle, const char * const aErrStr)
{
if (!aData)
return ENullPtr;
int Err = 0;
unsigned serhandle = 0;
if (aSerHandle)
serhandle = *aSerHandle;
else
{
if ((Err = OpenFpSerialPort()) < 0)
return ETtyBadOpen;
serhandle = (unsigned)Err;
}
int is_allocated = SetArgv("SendFpWithResponse", FALSE);
fp_packet_r503 packet = { 0, };
if ((Err = CtorFpPacket(&packet, aId, aLen, aData, serhandle)))
{
if (aErrStr)
fprintf(stderr, "\n%s: ERROR! Could not create packet %s (code %d)\n", __argv[0], aErrStr, Err);
else
fprintf(stderr, "\n%s: ERROR! Could not create packet. (code %d)\n", __argv[0], Err);
if (!aSerHandle)
CloseFpSerialPort(serhandle);
DtorFpPacket(&packet);
SetArgv(NULL, is_allocated);
return Err;
}
if ((Err = SendFpPacket(&packet)))
{
if (!aSerHandle)
CloseFpSerialPort(serhandle);
DtorFpPacket(&packet);
SetArgv(NULL, is_allocated);
return Err;
}
Err = GetFpResponse(serhandle);
if (!aSerHandle)
CloseFpSerialPort(serhandle);
DtorFpPacket(&packet);
SetArgv(NULL, is_allocated);
return Err;
}
int FingerImgToBuffer(const int aBuffNum)
{
int is_allocated = SetArgv("FingerImgToBuffer", FALSE);
uint8_t buff_num = (uint8_t)aBuffNum;
if ((aBuffNum != 1) && (aBuffNum != 2))
{
fprintf(stdout, "\n%s: WARNING! Valid buffer IDs are 1 or 2. Defaulting to 1.\n", __argv[0]);
buff_num = 1;
}
uint8_t data[2] = { R503_INSTR_IMG_TO_CHAR_FILE, buff_num };
int Err = SendFpWithResponse(R503_PACKET_CMD, 0x4, data, NULL, "for finger IMG to Buffer conversion.");
if (Err)
{
fprintf(stderr, "\n%s: ERROR! Failed to generate character file from finger IMG. (code %d)\n", __argv[0], Err);
SetArgv(NULL, is_allocated); return Err;
}
SetArgv(NULL, is_allocated);
return EOk;
}
int SaveFingerTemplate(const int aSrcBuffNum, const uint8_t * const aDstFlashPos)
{
int is_allocated = SetArgv("SaveFingerTemplate", FALSE);
if (!aDstFlashPos)
{
fprintf(stderr, "\n%s: ERROR! Memory storage location not specified. (code %d)\n", __argv[0], ENullPtr);
SetArgv(NULL, is_allocated); return ENullPtr;
}
uint8_t buff_num = (uint8_t)aSrcBuffNum;
if ((aSrcBuffNum != 1) && (aSrcBuffNum != 2))
{
fprintf(stdout, "\n%s: WARNING! Valid buffer IDs are 1 or 2. Defaulting to 1.\n", __argv[0]);
buff_num = 1;
}
fprintf(stdout, "\n\n%s: \tSaving finger template to flash memory ...\n", __argv[0]);
uint8_t data[4] = { R503_INSTR_STORE_TEMPLATE, buff_num, aDstFlashPos[0], aDstFlashPos[1] };
int Err = SendFpWithResponse(R503_PACKET_CMD, 0x6, data, NULL, "for finger template storage.");
if (Err == R503_ACK_ERR_FLASH_ID_OVERFLOW)
fprintf(stderr, "\n%s: ERROR! Storage position out of bounds of flash memory. (code %d)", __argv[0], Err);
if (Err)
{
fprintf(stderr, "\n%s: ERROR! Failed to save finger template to flash. (code %d)\n", __argv[0], Err);
SetArgv(NULL, is_allocated); return Err;
}
fprintf(stdout, "\n%s: \tTemplate saved successfuly.\n", __argv[0]);
SetArgv(NULL, is_allocated);
return EOk;
}
int LoadFingerTemplate(const uint8_t * const aSrcFlashPos, const int aDstBuffNum)
{
int is_allocated = SetArgv("LoadFingerTemplate", FALSE);
if (!aSrcFlashPos)
{
fprintf(stderr, "\n%s: ERROR! Memory storage location not specified. (code %d)\n", __argv[0], ENullPtr);
SetArgv(NULL, is_allocated); return ENullPtr;
}
uint8_t buff_num = (uint8_t)aDstBuffNum;
if ((aDstBuffNum != 1) && (aDstBuffNum != 2))
{
fprintf(stdout, "\n%s: WARNING! Valid buffer IDs are 1 or 2. Defaulting to 1.\n", __argv[0]);
buff_num = 1;
}
fprintf(stdout, "\n\n%s: \tLoading finger template from flash memory ...\n", __argv[0]);
uint8_t data[4] = { R503_INSTR_READ_TEMPLATE, buff_num, aSrcFlashPos[0], aSrcFlashPos[1] };
int Err = SendFpWithResponse(R503_PACKET_CMD, 0x6, data, NULL, "for finger template loading.");
if (Err == R503_ACK_ERR_FLASH_ID_OVERFLOW)
fprintf(stderr, "\n%s: ERROR! Reading position out of bounds of flash memory. (code %d)", __argv[0], Err);
if (Err)
{
fprintf(stderr, "\n%s: ERROR! Failed to load finger template from flash. (code %d)\n", __argv[0], Err);
SetArgv(NULL, is_allocated); return Err;
}
fprintf(stdout, "\n%s: \tTemplate saved successfuly.\n", __argv[0]);
SetArgv(NULL, is_allocated);
return EOk;
}
int GenFingerTemplate(const uint8_t * const aDstFlashPos, const int * const aKillSig)
{
int is_allocated = SetArgv("GenFingerTemplate", FALSE);
int Err = 0;
fprintf(stdout, "\n\n%s: \tCreating finger template ...\n", __argv[0]);
if (aKillSig)
{
if ((Err = GetFingerImg(aKillSig)))
{ SetArgv(NULL, is_allocated); return Err; }
}
else
{
if ((Err = GetFingerImg(NULL)))
{ SetArgv(NULL, is_allocated); return Err; }
}
FingerImgToBuffer(1);
if (aKillSig)
{
if ((Err = GetFingerImg(aKillSig)))
{ SetArgv(NULL, is_allocated); return Err; }
}
else
{
if ((Err = GetFingerImg(NULL)))
{ SetArgv(NULL, is_allocated); return Err; }
}
FingerImgToBuffer(2);
uint8_t data[1] = { R503_INSTR_GEN_TEMPLATE };
Err = SendFpWithResponse(R503_PACKET_CMD, 0x3, data, NULL, "for finger template creation.");
if (Err == R503_ACK_ERR_COMBINE_FILES)
{
fprintf(stderr, "\n%s: ERROR! Fingers do not match. (code %d)", __argv[0], EFpBadMatch);
SetArgv(NULL, is_allocated); return EFpBadMatch;
}
if (Err)
{
fprintf(stderr, "\n%s: ERROR! Failed to generate finger template. (code %d)\n", __argv[0], Err);
SetArgv(NULL, is_allocated); return Err;
}
fprintf(stdout, "\n%s: \tFinger template created.\n", __argv[0]);
if (aDstFlashPos)
if ((Err = SaveFingerTemplate(1, aDstFlashPos)))
{ SetArgv(NULL, is_allocated); return Err; }
SetArgv(NULL, is_allocated);
return EOk;
}
int MatchFingerTemplates()
{
int is_allocated = SetArgv("MatchFingerTemplates", FALSE);
uint8_t data[1] = { R503_INSTR_MATCH_TEMPLATES };
int Err = SendFpWithResponse(R503_PACKET_CMD, 0x3, data, NULL, "for template matching.");
if (Err == R503_ACK_ERR_NO_FP_MATCH)
{
fprintf(stdout, "\n%s: \tFinger templates do not match.\n", __argv[0]);
SetArgv(NULL, is_allocated); return Err;
}
if (Err)
{
fprintf(stderr, "\n%s: ERROR! Could not perform finger template matching. (code %d)\n", __argv[0], Err);
SetArgv(NULL, is_allocated); return Err;
}
fprintf(stdout, "\n%s: \tFinger templates match.\n", __argv[0]);
SetArgv(NULL, is_allocated);
return EOk;
}
int SendFpPacket(const fp_packet_r503 * const aPacket)
{
if (!aPacket)
return ENullPtr;
int is_allocated = SetArgv("SendFpPacket", FALSE), Err = 0;
for (size_t packet_byte = 0; packet_byte < aPacket->send_packet_length; ++packet_byte)
{
if ((Err = WriteFpByte(aPacket->serial_handle, aPacket->send_packet[packet_byte])))
{
fprintf(stderr, "\n%s: ERROR! Could not send %zuth byte to serial port %s. (code %d)\n", __argv[0], packet_byte, UART_PORT_NAME, Err);
SetArgv(NULL, is_allocated); return Err;
}
}
SetArgv(NULL, is_allocated);
return EOk;
}
int SetFpLed(const uint8_t aState, const uint8_t aColor, const uint8_t aPeriod, const uint8_t aCount)
{
uint8_t data[5] = { R503_INSTR_LED_CONFIG, aState, aPeriod, aColor, aCount };
int Err = SendFpWithResponse(R503_PACKET_CMD, 0x7, data, NULL, "for LED settings.");
if (Err)
return Err;
return EOk;
}
int WaitForData(const unsigned aSerHandle)
{
int is_allocated = SetArgv("WaitForData", FALSE), bytes_avail = 0;
uint64_t start_t = GetMicroTick(), curr_t = 0;
while ((bytes_avail = DataOnFpSerial(aSerHandle)) == 0)
{
if ((curr_t = GetMicroTick()) < start_t)
fprintf(stdout, "\n%s: WARNING! Incorrect timeout calculated.\n", __argv[0]);
if ((curr_t - start_t) > DATA_WAIT_TIMEOUT_MICROS)
{
fprintf(stderr, "\n%s: ERROR! Waiting for serial data reached timeout. (code %d)\n", __argv[0], ETtyTimeout);
SetArgv(NULL, is_allocated); return ETtyTimeout;
}
}
if (bytes_avail < 0)
{ SetArgv(NULL, is_allocated); return bytes_avail; }
SetArgv(NULL, is_allocated);
return EOk;
}
int64_t ReadByBytes(const unsigned aSerHandle, unsigned aNumofBytes)
{
int is_allocated = SetArgv("ReadByBytes", FALSE);
if (aNumofBytes > 4)
{
fprintf(stderr, "\n%s: WARNING! Largest packet element is 4 bytes. Larger values defaulted to 4.\n", __argv[0]);
aNumofBytes = 4;
}
if (aNumofBytes < 1)
{
fprintf(stderr, "\n%s: WARNING! Smallest packet element is 1 byte. Smaller values defaulted to 1.\n", __argv[0]);
aNumofBytes = 1;
}
int Err = 0;
if ((Err = WaitForData(aSerHandle)))
{ SetArgv(NULL, is_allocated); return Err; }
if ((Err = ReadFpByte(aSerHandle)) < 0)
{
fprintf(stderr, "\n%s: ERROR! Could not read 1st byte from serial port %s. (code %d)\n", __argv[0], UART_PORT_NAME, Err);
SetArgv(NULL, is_allocated); return Err;
}
uint32_t read_value = (uint32_t)Err;
for (size_t n_byte = 2; n_byte <= aNumofBytes; ++n_byte)
{
read_value <<= 8;
if ((Err = WaitForData(aSerHandle)))
{ SetArgv(NULL, is_allocated); return Err; }
if ((Err = ReadFpByte(aSerHandle)) < 0)
{
fprintf(stderr, "\n%s: ERROR! Could not read %zuth byte from serial port %s. (code %d)\n", __argv[0], n_byte, UART_PORT_NAME, Err);
SetArgv(NULL, is_allocated); return Err;
}
read_value |= (uint32_t)Err;
}
SetArgv(NULL, is_allocated);
return (int64_t)read_value;
}
int ReadFpPacket(fp_packet_r503 * const aPacket)
{
if (!aPacket)
return ENullPtr;
int Err = 0;
if ((Err = DataOnFpSerial(aPacket->serial_handle)) < 0)
{
DtorFpPacket(aPacket);
return Err;
}
int64_t out = ReadByBytes(aPacket->serial_handle, 2);
if (out < 0)
{
DtorFpPacket(aPacket);
return out;
}
aPacket->header = (uint16_t)out;
out = ReadByBytes(aPacket->serial_handle, 4);
if (out < 0)
{
DtorFpPacket(aPacket);
return out;
}
aPacket->address = (uint32_t)out;
out = ReadByBytes(aPacket->serial_handle, 1);
if (out < 0)
{
DtorFpPacket(aPacket);
return out;
}
aPacket->package_id = (uint8_t)out;
out = ReadByBytes(aPacket->serial_handle, 2);
if (out < 0)
{
DtorFpPacket(aPacket);
return out;
}
aPacket->package_length = (uint16_t)out;
if ((Err = BufferAlloc(&aPacket->data, aPacket->package_length - sizeof(aPacket->checksum))))
{
DtorFpPacket(aPacket);
return Err;
}
for (size_t data_byte = 0; data_byte < aPacket->package_length - 2; ++data_byte)
{
out = ReadByBytes(aPacket->serial_handle, 1);
if (out < 0)
{
DtorFpPacket(aPacket);
return out;
}
aPacket->data[data_byte] = (uint8_t)out;
}
out = ReadByBytes(aPacket->serial_handle, 2);
if (out < 0)
{
DtorFpPacket(aPacket);
return out;
}
aPacket->checksum = (uint16_t)out;
/*serRead(aPacket->serial_handle, (char*)&aPacket->header, 2);
aPacket->header = ((aPacket->header & (uint16_t)0xFF) << 8) | ((aPacket->header & 0xFF00) >> 8);*/
return EOk;
}
void PrintFpPacket(const fp_packet_r503 * const aPacket, const char * const aPcktType)
{
if (aPacket)
{
int is_allocated = SetArgv("PrintFpPacket", FALSE);
if (aPcktType)
fprintf(stdout, "%s: %s packet contents:\n", __argv[0], aPcktType);
else
fprintf(stdout, "%s: Packet contents:\n", __argv[0]);
fprintf(stdout, "%s: headder: 0x%x\n", __argv[0], aPacket->header);
fprintf(stdout, "%s: address: 0x%x\n", __argv[0], aPacket->address);
fprintf(stdout, "%s: package ID: 0x%x\n", __argv[0], aPacket->package_id);
fprintf(stdout, "%s: package length: 0x%x\n", __argv[0], aPacket->package_length);
fprintf(stdout, "%s: data:\n", __argv[0]);
for (size_t data_byte = 0; data_byte < aPacket->package_length - 2; ++data_byte)
fprintf(stdout, "%s: 0x%x\n", __argv[0], aPacket->data[data_byte]);
fprintf(stdout, "%s: checksum: 0x%x\n", __argv[0], aPacket->checksum);
SetArgv(NULL, is_allocated);
}
}
int GetFpResponse(const unsigned aSerHandle)
{
int is_allocated = SetArgv("GetFpResponse", FALSE), Err = 0;
fp_packet_r503 ack_pckt = { 0, };
ack_pckt.serial_handle = aSerHandle;
if ((Err = ReadFpPacket(&ack_pckt)))
{
fprintf(stderr, "\n%s: ERROR! Could not read received packet. (code %d)\n", __argv[0], Err);
DtorFpPacket(&ack_pckt); return Err;
}
int Ret = (int)ack_pckt.data[0];
DtorFpPacket(&ack_pckt);
SetArgv(NULL, is_allocated);
return Ret;
}
const int16_t * ExportFingerTemplate(const uint8_t aBuffNum, const char * const aFileName)
{
static int16_t Err[1] = { 0 };
if ((Err[0] = OpenFpSerialPort()) < 0)
return Err;
unsigned serhandle = (unsigned)Err[0];
int is_allocated = SetArgv("ExportFingerTemplate", FALSE);
uint8_t buff_num = aBuffNum;
if ((aBuffNum != 1) && (aBuffNum != 2))
{
fprintf(stdout, "\n%s: WARNING! Valid buffer IDs are 1 or 2. Defaulting to 1.\n", __argv[0]);
buff_num = 1;
}
uint8_t data[2] = { R503_INSTR_UPLOAD_TEMPLATE, buff_num };
Err[0] = SendFpWithResponse(R503_PACKET_CMD, 0x4, data, &serhandle, "for finger template upload.");
if (Err[0])
{
fprintf(stderr, "\n%s: ERROR! Failed to generate character file from finger IMG. (code %d)\n", __argv[0], Err[0]);
CloseFpSerialPort(serhandle); SetArgv(NULL, is_allocated);
return Err;
}
const int16_t *PacketData = ExportFpPacketData(serhandle, aFileName);
WaitMicros((uint32_t)150000);
CloseFpSerialPort(serhandle);
SetArgv(NULL, is_allocated);
return PacketData;
}
int ReadPrintFpPacket()
{
int is_allocated = SetArgv("ReadPrintFpPacket", FALSE);
fp_packet_r503 pckt = { 0, };
int Err = 0;
if ((Err = ReadFpPacket(&pckt)))
{
fprintf(stderr, "\n%s: ERROR! Could not read received packet. (code %d)\n", __argv[0], Err);
DtorFpPacket(&pckt); SetArgv(NULL, is_allocated);
return Err;
}
PrintFpPacket(&pckt, "Finger template");
DtorFpPacket(&pckt);
SetArgv(NULL, is_allocated);
return EOk;
}
const int16_t * ExportFpPacketData(const unsigned aSerHandle, const char * const aFileName)
{
int is_allocated = SetArgv("ExportFpPacketData", FALSE);
static int16_t Err[1] = { 0 };
fp_packet_r503 pckt = { 0, };
pckt.serial_handle = aSerHandle;
if ((Err[0] = ReadFpPacket(&pckt)))
{
fprintf(stderr, "\n%s: ERROR! Could not read received packet. (code %d)\n", __argv[0], Err[0]);
DtorFpPacket(&pckt); SetArgv(NULL, is_allocated);
return Err;
}
if (aFileName)
{
FILE *outfile = fopen(aFileName,"wb");
for (size_t idx = 0; idx < pckt.package_length - 2; ++idx)
fprintf(outfile, "%x", pckt.data[idx]);
fclose(outfile);
fprintf(stdout, "\n%s: \tPacket data exported to \"%s\".\n", __argv[0], aFileName);
}
size_t ret_length = pckt.package_length - 2, ret_idx = 0;
static int16_t PacketData[R503_MAX_PACKET_DATA_LENGTH + 1] = { 0, };
if ((pckt.package_length - 2) > R503_MAX_PACKET_DATA_LENGTH)
{
fprintf(stdout, "\n%s: WARNING! Packet data larger than storage buffer (R503_MAX_PACKET_DATA_LENGTH). Function output will be incomplete.\n", __argv[0]);
ret_length = R503_MAX_PACKET_DATA_LENGTH;
}
for (ret_idx = 0; ret_idx < ret_length; ++ret_idx)
PacketData[ret_idx] = pckt.data[ret_idx];
PacketData[ret_idx] = -1;
DtorFpPacket(&pckt);
SetArgv(NULL, is_allocated);
return PacketData;
}
const int16_t * GetFingerprintData()
{
int is_allocated = SetArgv("GetFingerprintData", FALSE), terminate = FALSE;
static int16_t Err[1] = { 0 };
#ifdef PIGPIO_PERMITTED
if(GpioConfig(NULL, &terminate))
{ SetArgv(NULL, is_allocated); Err[0] = EGpioBadInit; return Err; }
#endif
if ((Err[0] = GenFingerTemplate(NULL, &terminate)))
{
fprintf(stderr, "\n%s: ERROR! Could not generate finger template. (code %d)\n", __argv[0], Err[0]);
SetArgv(NULL, is_allocated); return Err;
}
const int16_t *FingerTemplate = NULL;
FingerTemplate = ExportFingerTemplate(1, NULL/*"finger_template.fpt"*/);
if (FingerTemplate[0] < 0)
{
fprintf(stderr, "\n%s: ERROR! Could not export finger template. (code %d)\n", __argv[0], FingerTemplate[0]);
SetArgv(NULL, is_allocated); return FingerTemplate;
}
/*
size_t idx = 0;
printf("\n\ttemplate (in C func):\n");
while (idx < R503_MAX_PACKET_DATA_LENGTH + 1)
{
printf("%x", FingerTemplate[idx]);
++idx;
}
printf("%x\n", FingerTemplate[idx]);
*/
SetArgv(NULL, is_allocated);
#ifdef PIGPIO_PERMITTED
GpioCleanup();
#endif
return FingerTemplate;
}