EXPORT int MAX7219Init()
{
clearLastError();
int devFD;
if ((devFD = openHW(SPI0_PATH, O_RDWR)) < 0) {
setLastError("Fail to open SPI device MAX7219");
return -1;
}
if (setSPIDataMode(devFD, spiMode) == -1 ) {
setLastError("Fail to set MAX7219 SPI mode");
closeHW(devFD);
return -1;
}
if (setSPIWriteBitsPerWord(devFD, spiBits) == -1 ) {
setLastError("Fail to set MAX7219 SPI bits");
closeHW(devFD);
return -1;
}
if (setSPIClockDivider(devFD, spiDivider) == -1 ) {
setLastError("Fail to set MAX7219 SPI clock divider");
closeHW(devFD);
return -1;
}
MAX7219WriteByte(devFD, 0x09, 0x00);
MAX7219WriteByte(devFD, 0x0a, 0x03);
MAX7219WriteByte(devFD, 0x0b, 0x07);
MAX7219WriteByte(devFD, 0x0c, 0x01);
MAX7219WriteByte(devFD, 0x0f, 0x00);
return devFD;
}
EXPORT int dht11Init(int pin)
{
int dht11Pin = pin;
clearLastError();
int devFD = openHW(DHT11_DEV, O_RDONLY);
if (devFD == -1) {
printf("Fail to open dht11");
return -1;
}
if(ioctl(devFD, SET_DHT11_PIN, &dht11Pin) == -1) {
setLastError("Fail to set dht11 pin");
closeHW(devFD);
return -1;
}
dht11Pin = -1;
if(ioctl(devFD, GET_DHT11_PIN, &dht11Pin) == -1) {
setLastError("Fail to get dht11 pin");
closeHW(devFD);
return -1;
}
if (dht11Pin != pin) {
setLastError("Get error dht11 pin %d", dht11Pin);
closeHW(devFD);
return -1;
}
return devFD;
}
int main(int argc, char ** argv)
{
int board, i, j;
int retSize = -1;
char *devName = GPIO_IR_DEV;
int pin = GPIO_PIN(7);
char modStr[BUF_SIZE];
struct input_event evKey;
if ((board = boardInit()) < 0)
printf("Fail to init board\n");
if (board == BOARD_NANOPI_T2)
pin = GPIO_PIN(15);
sprintf(modStr, "modprobe %s gpio=%d", IR_DRIVER_MODULE, pintoGPIO(pin));
system(modStr);
signal(SIGINT, IRIntHandler);
sleep(1);
irFD = openHW(devName, O_RDWR);
if (irFD < 0) {
printf("Fail to open GPIO IR device\n");
return -1;
}
printf("Press the IR remoter\n");
for (i=0; i<IR_EVENT_TIMES; i++) {
if (selectHW(irFD, 0, 0) == 1) {
retSize = readHW(irFD, &evKey, sizeof(struct input_event));
for (j=0; j<(int) retSize / sizeof(struct input_event); j++)
printf("%2d: Type=%d, Code=%d, Value=%x\n", i, evKey.type, evKey.code, evKey.value);
}
}
closeHW(irFD);
system("rmmod "IR_DRIVER_MODULE);
return 0;
}
EXPORT void dht11DeInit(int devFD)
{
clearLastError();
if(ioctl(devFD, UNSET_DHT11_PIN, 0) == -1) {
setLastError("Fail to unset dht11 pin\n");
}
closeHW(devFD);
}
void IRIntHandler(int signNum)
{
if (signNum == SIGINT) {
closeHW(irFD);
system("rmmod "IR_DRIVER_MODULE);
printf("Quit waiting IR event\n");
}
exit(0);
}
void IRIntHandler(int signNum)
{
if (signNum == SIGINT) {
printf("Clean up\n");
closeHW(irFD);
system("rmmod "DRIVER_MODULE);
}
exit(0);
}
EXPORT int hmc5883Init()
{
clearLastError();
int devFD;
if ((devFD = openHW(I2C0_PATH, O_RDWR)) < 0) {
setLastError("Fail to open I2C hmc5883 device");
return -1;
} else {
if (setI2CSlave(devFD, HMC5883_ADDRESS) < 0) {
setLastError("Fail to set hmc5883 I2C slave address");
closeHW(devFD);
return -1;
}
}
if (hmc5883HWInit(devFD) == -1) {
closeHW(devFD);
return -1;
}
return devFD;
}
EXPORT int pcf8574Init(int i2cDev)
{
clearLastError();
int devFD;
char buf[16];
memset(buf, 0, sizeof(buf));
sprintf(buf, "/dev/i2c-%d", i2cDev);
if ((devFD = openHW(buf, O_RDWR)) < 0) {
setLastError("Fail to open I2C device pcf8574");
return -1;
} else {
if (setI2CSlave(devFD, PCF8574_ADDRESS) < 0) {
setLastError("Fail to set pcf8574 I2C slave address");
closeHW(devFD);
return -1;
}
}
return devFD;
}
EXPORT void LCD1602DeInit(int devFD)
{
clearLastError();
closeHW(devFD);
}
EXPORT void pcf8574DeInit(int devFD)
{
clearLastError();
closeHW(devFD);
}
EXPORT void MAX7219DeInit(int devFD)
{
clearLastError();
MAX7219CleanScreen(devFD);
closeHW(devFD);
}
EXPORT void hmc5883DeInit(int devFD) {
closeHW(devFD);
}
