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Use mysensors built-in nrf24 library for RPi

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This commit is contained in:
Marcelo Aquino
2016-09-14 23:26:12 -03:00
parent 4175a5f423
commit fab2112f9b
22 changed files with 4051 additions and 544 deletions
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drivers/RF24/RF24.cpp
+43 -10
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@@ -29,8 +29,13 @@ LOCAL uint8_t MY_RF24_NODE_ADDRESS = AUTO;
LOCAL RF24_receiveCallbackType RF24_receiveCallback = NULL;
#endif
#ifdef LINUX_ARCH_RASPBERRYPI
uint8_t spi_rxbuff[32+1] ; //SPI receive buffer (payload max 32 bytes)
uint8_t spi_txbuff[32+1] ; //SPI transmit buffer (payload max 32 bytes + 1 byte for the command)
#endif
LOCAL void RF24_csn(bool level) {
digitalWrite(MY_RF24_CS_PIN, level);
digitalWrite(MY_RF24_CS_PIN, level);
}
LOCAL void RF24_ce(bool level) {
@@ -38,6 +43,7 @@ LOCAL void RF24_ce(bool level) {
}
LOCAL uint8_t RF24_spiMultiByteTransfer(uint8_t cmd, uint8_t* buf, uint8_t len, bool aReadMode) {
uint8_t status;
uint8_t* current = buf;
#if !defined(MY_SOFTSPI)
_SPI.beginTransaction(SPISettings(MY_RF24_SPI_MAX_SPEED, MY_RF24_SPI_DATA_ORDER, MY_RF24_SPI_DATA_MODE));
@@ -45,13 +51,40 @@ LOCAL uint8_t RF24_spiMultiByteTransfer(uint8_t cmd, uint8_t* buf, uint8_t len,
RF24_csn(LOW);
// timing
delayMicroseconds(10);
uint8_t status = _SPI.transfer( cmd );
while ( len-- ) {
if (aReadMode) {
status = _SPI.transfer( NOP );
if(buf != NULL) *current++ = status;
} else status = _SPI.transfer(*current++);
}
#ifdef LINUX_ARCH_RASPBERRYPI
uint8_t * prx = spi_rxbuff;
uint8_t * ptx = spi_txbuff;
uint8_t size = len + 1; // Add register value to transmit buffer
*ptx++ = cmd;
while ( len-- ) {
if (aReadMode) {
*ptx++ = NOP ;
} else {
*ptx++ = *current++;
}
}
_SPI.transfernb( (char *) spi_txbuff, (char *) spi_rxbuff, size);
if (aReadMode) {
if (size == 2) {
status = *++prx; // result is 2nd byte of receive buffer
} else {
status = *prx++; // status is 1st byte of receive buffer
// decrement before to skip status byte
while (--size) { *buf++ = *prx++; }
}
} else {
status = *prx; // status is 1st byte of receive buffer
}
#else
status = _SPI.transfer( cmd );
while ( len-- ) {
if (aReadMode) {
status = _SPI.transfer( NOP );
if (buf != NULL) *current++ = status;
} else status = _SPI.transfer(*current++);
}
#endif
RF24_csn(HIGH);
#if !defined(MY_SOFTSPI)
_SPI.endTransaction();
@@ -268,7 +301,7 @@ LOCAL void RF24_irqHandler( void )
// rx coming in during our stay will not be handled and will cause characters to be lost.
// As a workaround we re-enable interrupts to allow nested processing of other interrupts.
// Our own handler is disconnected to prevent recursive calling of this handler.
#ifdef MY_GATEWAY_SERIAL
#if defined(MY_GATEWAY_SERIAL) && !defined(__linux__)
detachInterrupt(digitalPinToInterrupt(MY_RF24_IRQ_PIN));
interrupts();
#endif
@@ -283,7 +316,7 @@ LOCAL void RF24_irqHandler( void )
RF24_receiveCallback(); // Must call RF24_readMessage(), which will clear RX_DR IRQ !
}
// Restore our interrupt handler.
#ifdef MY_GATEWAY_SERIAL
#if defined(MY_GATEWAY_SERIAL) && !defined(__linux__)
noInterrupts();
attachInterrupt(digitalPinToInterrupt(MY_RF24_IRQ_PIN), RF24_irqHandler, FALLING);
#endif