Adds constantness to method declarations and arguments where possible.
Added the concept of wide band. Currently not used but state is properly tracked in accordance with data rate selection. Default channel is changed to 64 in begin method. That needs to move anyways. Automatic ACKs can now be adjusted on a per pipeline bases.
This commit is contained in:
Greg Copeland
parent
1a37c1cd0f
commit
b1a7dc7d54
95
RF24.cpp
95
RF24.cpp
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@ -26,7 +26,7 @@
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/******************************************************************/
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void RF24::csn(int mode)
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void RF24::csn(const int mode) const
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{
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SPI.setDataMode(SPI_MODE0);
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SPI.setClockDivider(SPI_CLOCK_DIV8);
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@ -35,14 +35,14 @@ void RF24::csn(int mode)
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/******************************************************************/
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void RF24::ce(int mode)
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void RF24::ce(const int mode) const
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{
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digitalWrite(ce_pin,mode);
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}
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/******************************************************************/
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uint8_t RF24::read_register(uint8_t reg, uint8_t* buf, uint8_t len)
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uint8_t RF24::read_register(const uint8_t reg, uint8_t* buf, uint8_t len) const
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{
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uint8_t status;
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@ -58,7 +58,7 @@ uint8_t RF24::read_register(uint8_t reg, uint8_t* buf, uint8_t len)
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/******************************************************************/
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uint8_t RF24::read_register(uint8_t reg)
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uint8_t RF24::read_register(const uint8_t reg) const
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{
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csn(LOW);
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SPI.transfer( R_REGISTER | ( REGISTER_MASK & reg ) );
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@ -70,7 +70,7 @@ uint8_t RF24::read_register(uint8_t reg)
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/******************************************************************/
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uint8_t RF24::write_register(uint8_t reg, const uint8_t* buf, uint8_t len)
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uint8_t RF24::write_register(const uint8_t reg, const uint8_t* buf, uint8_t len) const
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{
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uint8_t status;
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@ -86,7 +86,7 @@ uint8_t RF24::write_register(uint8_t reg, const uint8_t* buf, uint8_t len)
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/******************************************************************/
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uint8_t RF24::write_register(uint8_t reg, uint8_t value)
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uint8_t RF24::write_register(const uint8_t reg, const uint8_t value) const
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{
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uint8_t status;
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@ -144,7 +144,7 @@ uint8_t RF24::read_payload(void* buf, uint8_t len)
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/******************************************************************/
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uint8_t RF24::flush_rx(void)
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uint8_t RF24::flush_rx(void) const
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{
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uint8_t status;
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@ -157,7 +157,7 @@ uint8_t RF24::flush_rx(void)
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/******************************************************************/
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uint8_t RF24::flush_tx(void)
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uint8_t RF24::flush_tx(void) const
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{
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uint8_t status;
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@ -170,7 +170,7 @@ uint8_t RF24::flush_tx(void)
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/******************************************************************/
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uint8_t RF24::get_status(void)
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uint8_t RF24::get_status(void) const
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{
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uint8_t status;
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@ -183,7 +183,7 @@ uint8_t RF24::get_status(void)
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/******************************************************************/
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void RF24::print_status(uint8_t status)
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void RF24::print_status(uint8_t status) const
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{
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printf_P(PSTR("STATUS=%02x: RX_DR=%x TX_DS=%x MAX_RT=%x RX_P_NO=%x TX_FULL=%x\n\r"),
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status,
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@ -197,7 +197,7 @@ void RF24::print_status(uint8_t status)
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/******************************************************************/
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void RF24::print_observe_tx(uint8_t value)
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void RF24::print_observe_tx(uint8_t value) const
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{
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printf_P(PSTR("OBSERVE_TX=%02x: POLS_CNT=%x ARC_CNT=%x\n\r"),
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value,
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@ -209,7 +209,7 @@ void RF24::print_observe_tx(uint8_t value)
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/******************************************************************/
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RF24::RF24(uint8_t _cepin, uint8_t _cspin):
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ce_pin(_cepin), csn_pin(_cspin), payload_size(32), ack_payload_available(false)
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wide_band(true), ce_pin(_cepin), csn_pin(_cspin), payload_size(32), ack_payload_available(false)
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{
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}
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@ -217,12 +217,16 @@ RF24::RF24(uint8_t _cepin, uint8_t _cspin):
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void RF24::setChannel(uint8_t channel)
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{
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write_register(RF_CH,min(channel,127));
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if( wide_band ) {
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write_register(RF_CH,min(channel,127));
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} else {
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write_register(RF_CH,min(channel,127));
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}
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}
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/******************************************************************/
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void RF24::setPayloadSize(uint8_t size)
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void RF24::setPayloadSize(const uint8_t size)
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{
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payload_size = min(size,32);
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}
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@ -236,7 +240,7 @@ uint8_t RF24::getPayloadSize(void)
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/******************************************************************/
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void RF24::printDetails(void)
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void RF24::printDetails(void) const
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{
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uint8_t buffer[5];
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uint8_t status = read_register(RX_ADDR_P0,buffer,5);
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@ -314,18 +318,19 @@ void RF24::begin(void)
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flush_tx();
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// Set up default configuration. Callers can always change it later.
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setChannel(1);
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// Hardware default is channel 2 - even spacing implied.
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setChannel(64);
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}
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/******************************************************************/
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void RF24::startListening(void)
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void RF24::startListening(void) const
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{
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write_register(CONFIG, read_register(CONFIG) | _BV(PWR_UP) | _BV(PRIM_RX));
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write_register(STATUS, _BV(RX_DR) | _BV(TX_DS) | _BV(MAX_RT) );
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// Restore the pipe0 adddress
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write_register(RX_ADDR_P0, reinterpret_cast<uint8_t*>(&pipe0_reading_address), 5);
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write_register(RX_ADDR_P0, reinterpret_cast<const uint8_t*>(&pipe0_reading_address), 5);
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// Flush buffers
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flush_rx();
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@ -339,14 +344,14 @@ void RF24::startListening(void)
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/******************************************************************/
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void RF24::stopListening(void)
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void RF24::stopListening(void) const
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{
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ce(LOW);
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}
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/******************************************************************/
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void RF24::powerDown(void)
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void RF24::powerDown(void) const
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{
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write_register(CONFIG,read_register(CONFIG) & ~_BV(PWR_UP));
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}
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@ -431,14 +436,14 @@ uint8_t RF24::read_payload_length(void)
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/******************************************************************/
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boolean RF24::available(void)
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boolean RF24::available(void) const
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{
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return available(NULL);
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}
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/******************************************************************/
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boolean RF24::available(uint8_t* pipe_num)
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boolean RF24::available(uint8_t* pipe_num) const
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{
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uint8_t status = get_status();
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IF_SERIAL_DEBUG(print_status(status));
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@ -489,7 +494,7 @@ boolean RF24::read( void* buf, uint8_t len )
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void RF24::openWritingPipe(uint64_t value)
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{
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// Note that AVR 8-bit uC's store this LSB first, and the NRF24L01
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// Note that AVR 8-bit uC's store this LSB first, and the NRF24L01(+)
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// expects it LSB first too, so we're good.
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write_register(RX_ADDR_P0, reinterpret_cast<uint8_t*>(&value), 5);
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@ -499,7 +504,7 @@ void RF24::openWritingPipe(uint64_t value)
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/******************************************************************/
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void RF24::openReadingPipe(uint8_t child, uint64_t value)
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void RF24::openReadingPipe(const uint8_t child, const uint64_t address)
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{
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const uint8_t child_pipe[] = {
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RX_ADDR_P0, RX_ADDR_P1, RX_ADDR_P2, RX_ADDR_P3, RX_ADDR_P4, RX_ADDR_P5 };
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@ -512,15 +517,15 @@ void RF24::openReadingPipe(uint8_t child, uint64_t value)
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// openWritingPipe() will overwrite the pipe 0 address, so
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// startListening() will have to restore it.
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if (child == 0)
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pipe0_reading_address = value;
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pipe0_reading_address = address;
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if (child < 6)
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{
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// For pipes 2-5, only write the LSB
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if ( child < 2 )
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write_register(child_pipe[child], reinterpret_cast<uint8_t*>(&value), 5);
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write_register(child_pipe[child], reinterpret_cast<const uint8_t*>(&address), 5);
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else
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write_register(child_pipe[child], reinterpret_cast<uint8_t*>(&value), 1);
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write_register(child_pipe[child], reinterpret_cast<const uint8_t*>(&address), 1);
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write_register(child_payload_size[child],payload_size);
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@ -535,7 +540,7 @@ void RF24::openReadingPipe(uint8_t child, uint64_t value)
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/******************************************************************/
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void RF24::toggle_features(void)
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void RF24::toggle_features(void) const
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{
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csn(LOW);
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SPI.transfer( ACTIVATE );
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@ -545,7 +550,7 @@ void RF24::toggle_features(void)
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/******************************************************************/
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void RF24::enableAckPayload(void)
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void RF24::enableAckPayload(void) const
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{
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//
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// enable ack payload and dynamic payload features
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@ -572,7 +577,7 @@ void RF24::enableAckPayload(void)
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/******************************************************************/
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void RF24::writeAckPayload(uint8_t pipe, const void* buf, uint8_t len)
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void RF24::writeAckPayload(const uint8_t pipe, const void* buf, uint8_t len) const
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{
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const uint8_t* current = (const uint8_t*)buf;
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@ -596,7 +601,7 @@ boolean RF24::isAckPayloadAvailable(void)
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/******************************************************************/
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void RF24::setAutoAck(bool enable)
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void RF24::setAutoAck(const bool enable) const
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{
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if ( enable )
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write_register(EN_AA, B111111);
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@ -606,21 +611,30 @@ void RF24::setAutoAck(bool enable)
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/******************************************************************/
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boolean RF24::testCarrier(void)
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void RF24::setAutoAck( const uint8_t pipe, const bool enable ) const
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{
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uint8_t en_aa = read_register( EN_AA ) ;
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en_aa &= ~((enable?0:1)<<pipe) ;
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write_register( EN_AA, en_aa ) ;
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}
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/******************************************************************/
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boolean RF24::testCarrier(void) const
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{
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return ( read_register(CD) & 1 );
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}
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/******************************************************************/
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boolean RF24::testRPD(void)
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boolean RF24::testRPD(void) const
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{
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return ( read_register(RPD) & 1 ) ;
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}
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/******************************************************************/
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void RF24::setPALevel(rf24_pa_dbm_e level)
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void RF24::setPALevel(const rf24_pa_dbm_e level) const
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{
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uint8_t setup = read_register(RF_SETUP) ;
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setup &= ~(_BV(RF_PWR_LOW) | _BV(RF_PWR_HIGH)) ;
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@ -642,6 +656,11 @@ void RF24::setPALevel(rf24_pa_dbm_e level)
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case RF24_PA_MIN:
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setup |= RF_PWR_18DB ;
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break ;
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case RF24_PA_ERROR:
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// On error, go to maximum PA
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setup |= RF_PWR_0DB ;
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break ;
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}
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write_register( RF_SETUP, setup ) ;
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@ -649,7 +668,7 @@ void RF24::setPALevel(rf24_pa_dbm_e level)
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/******************************************************************/
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rf24_pa_dbm_e RF24::getPALevel(void)
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rf24_pa_dbm_e RF24::getPALevel(void) const
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{
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rf24_pa_dbm_e result = RF24_PA_ERROR ;
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uint8_t power = read_register(RF_SETUP) & RF_PWR ;
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@ -678,11 +697,12 @@ rf24_pa_dbm_e RF24::getPALevel(void)
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/******************************************************************/
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void RF24::setDataRate(rf24_datarate_e speed)
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void RF24::setDataRate(const rf24_datarate_e speed)
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{
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uint8_t setup = read_register(RF_SETUP) ;
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// HIGH and LOW '00' is 1Mbs - our default
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wide_band = false ;
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setup &= ~(_BV(RF_DR_LOW) | _BV(RF_DR_HIGH)) ;
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if( speed == RF24_250KBPS )
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{
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@ -696,6 +716,7 @@ void RF24::setDataRate(rf24_datarate_e speed)
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// Making it '01'
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if ( speed == RF24_2MBPS )
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{
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wide_band = true ;
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setup |= _BV(RF_DR_HIGH);
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}
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@ -706,7 +727,7 @@ void RF24::setDataRate(rf24_datarate_e speed)
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/******************************************************************/
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void RF24::setCRCLength(rf24_crclength_e length)
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void RF24::setCRCLength(const rf24_crclength_e length) const
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{
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uint8_t config = read_register(CONFIG) & _BV(CRCO);
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if (length == RF24_CRC_16)
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74
RF24.h
74
RF24.h
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@ -22,6 +22,7 @@ typedef enum { RF24_CRC_8 = 0, RF24_CRC_16 } rf24_crclength_e;
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class RF24
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{
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private:
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boolean wide_band; /* 2Mbs data rate in use? */
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uint8_t ce_pin; /**< "Chip Enable" pin, activates the RX or TX role */
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uint8_t csn_pin; /**< SPI Chip select */
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uint8_t payload_size; /**< Fixed size of payloads */
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@ -44,7 +45,7 @@ protected:
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*
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* @param mode HIGH to take this unit off the SPI bus, LOW to put it on
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*/
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void csn(int mode) ;
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void csn(const int mode) const ;
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/**
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* Set chip enable
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@ -52,7 +53,7 @@ protected:
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* @param mode HIGH to actively begin transmission or LOW to put in standby. Please see data sheet
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* for a much more detailed description of this pin.
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*/
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void ce(int mode);
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void ce(const int mode) const ;
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/**
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* Read a chunk of data in from a register
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@ -62,7 +63,7 @@ protected:
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* @param len How many bytes of data to transfer
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* @return Current value of status register
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*/
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uint8_t read_register(uint8_t reg, uint8_t* buf, uint8_t len) ;
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uint8_t read_register(const uint8_t reg, uint8_t* buf, uint8_t len) const ;
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/**
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* Read single byte from a register
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@ -70,7 +71,7 @@ protected:
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* @param reg Which register. Use constants from nRF24L01.h
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* @return Current value of register @p reg
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*/
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uint8_t read_register(uint8_t reg);
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uint8_t read_register(const uint8_t reg) const ;
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/**
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* Write a chunk of data to a register
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@ -80,7 +81,7 @@ protected:
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* @param len How many bytes of data to transfer
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* @return Current value of status register
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*/
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uint8_t write_register(uint8_t reg, const uint8_t* buf, uint8_t len);
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uint8_t write_register(const uint8_t reg, const uint8_t* buf, uint8_t len) const ;
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/**
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* Write a single byte to a register
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@ -89,7 +90,7 @@ protected:
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* @param value The new value to write
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* @return Current value of status register
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*/
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uint8_t write_register(uint8_t reg, uint8_t value);
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uint8_t write_register(const uint8_t reg, const uint8_t value) const ;
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/**
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* Write the transmit payload
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@ -128,21 +129,21 @@ protected:
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*
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* @return Current value of status register
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*/
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uint8_t flush_rx(void);
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uint8_t flush_rx(void) const ;
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/**
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* Empty the transmit buffer
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*
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* @return Current value of status register
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*/
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uint8_t flush_tx(void);
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uint8_t flush_tx(void) const ;
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/**
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* Retrieve the current status of the chip
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*
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* @return Current value of status register
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*/
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uint8_t get_status(void) ;
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uint8_t get_status(void) const ;
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/**
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* Decode and print the given status to stdout
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@ -151,7 +152,7 @@ protected:
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*
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* @warning Does nothing if stdout is not defined. See fdevopen in stdio.h
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*/
|
||||
void print_status(uint8_t status) ;
|
||||
void print_status(uint8_t status) const ;
|
||||
|
||||
/**
|
||||
* Decode and print the given 'observe_tx' value to stdout
|
||||
|
|
@ -160,7 +161,7 @@ protected:
|
|||
*
|
||||
* @warning Does nothing if stdout is not defined. See fdevopen in stdio.h
|
||||
*/
|
||||
void print_observe_tx(uint8_t value) ;
|
||||
void print_observe_tx(uint8_t value) const ;
|
||||
|
||||
/**
|
||||
* Turn on or off the special features of the chip
|
||||
|
|
@ -168,7 +169,7 @@ protected:
|
|||
* The chip has certain 'features' which are only available when the 'features'
|
||||
* are enabled. See the datasheet for details.
|
||||
*/
|
||||
void toggle_features(void);
|
||||
void toggle_features(void) const ;
|
||||
/**@}*/
|
||||
|
||||
public:
|
||||
|
|
@ -204,14 +205,14 @@ public:
|
|||
* in this mode, without first calling stopListening(). Call
|
||||
* isAvailable() to check for incoming traffic, and read() to get it.
|
||||
*/
|
||||
void startListening(void);
|
||||
void startListening(void) const ;
|
||||
|
||||
/**
|
||||
* Stop listening for incoming messages
|
||||
*
|
||||
* Do this before calling write().
|
||||
*/
|
||||
void stopListening(void);
|
||||
void stopListening(void) const ;
|
||||
|
||||
/**
|
||||
* Write to the open writing pipe
|
||||
|
|
@ -238,7 +239,7 @@ public:
|
|||
*
|
||||
* @return True if there is a payload available, false if none is
|
||||
*/
|
||||
boolean available(void) ;
|
||||
boolean available(void) const ;
|
||||
|
||||
/**
|
||||
* Read the payload
|
||||
|
|
@ -297,7 +298,7 @@ public:
|
|||
* @param number Which pipe# to open, 0-5.
|
||||
* @param address The 40-bit address of the pipe to open.
|
||||
*/
|
||||
void openReadingPipe(uint8_t number, uint64_t address);
|
||||
void openReadingPipe(const uint8_t number, const uint64_t address);
|
||||
|
||||
/**@}*/
|
||||
/**
|
||||
|
|
@ -310,7 +311,9 @@ public:
|
|||
/**
|
||||
* Set RF communication channel
|
||||
*
|
||||
* @param channel Which RF channel to communicate on, 0-127
|
||||
* @param channel Which RF channel to communicate on, 0-127 in narrow band
|
||||
* and 0 - 63 in wide band. Narrow and wideband is determined by data rate.
|
||||
* A 2Mbs data rate automatically forces wide band mode.
|
||||
*/
|
||||
void setChannel(uint8_t channel);
|
||||
|
||||
|
|
@ -326,7 +329,7 @@ public:
|
|||
*
|
||||
* @param size The number of bytes in the payload
|
||||
*/
|
||||
void setPayloadSize(uint8_t size);
|
||||
void setPayloadSize(const uint8_t size);
|
||||
|
||||
/**
|
||||
* Get Payload Size
|
||||
|
|
@ -342,7 +345,7 @@ public:
|
|||
*
|
||||
* @warning Does nothing if stdout is not defined. See fdevopen in stdio.h
|
||||
*/
|
||||
void printDetails(void) ;
|
||||
void printDetails(void) const ;
|
||||
|
||||
/**
|
||||
* Enter low-power mode
|
||||
|
|
@ -350,7 +353,7 @@ public:
|
|||
* To return to normal power mode, either write() some data or
|
||||
* startListening().
|
||||
*/
|
||||
void powerDown(void);
|
||||
void powerDown(void) const ;
|
||||
|
||||
/**
|
||||
* Test whether there are bytes available to be read
|
||||
|
|
@ -361,7 +364,7 @@ public:
|
|||
* @param[out] pipe_num Which pipe has the payload available
|
||||
* @return True if there is a payload available, false if none is
|
||||
*/
|
||||
boolean available(uint8_t* pipe_num);
|
||||
boolean available(uint8_t* pipe_num) const ;
|
||||
|
||||
/**
|
||||
* Enable custom payloads on the acknowledge packets
|
||||
|
|
@ -371,7 +374,7 @@ public:
|
|||
*
|
||||
* @see examples/pingpair_pl/pingpair_pl.pde
|
||||
*/
|
||||
void enableAckPayload(void);
|
||||
void enableAckPayload(void) const;
|
||||
|
||||
/**
|
||||
* Write an ack payload for the specified pipe
|
||||
|
|
@ -387,7 +390,7 @@ public:
|
|||
* @param len Length of the data to send, up to 32 bytes max. Not affected
|
||||
* by the static payload set by setPayloadSize().
|
||||
*/
|
||||
void writeAckPayload(uint8_t pipe, const void* buf, uint8_t len);
|
||||
void writeAckPayload(const uint8_t pipe, const void* buf, uint8_t len) const ;
|
||||
|
||||
/**
|
||||
* Determine if an ack payload was received in the most recent call to
|
||||
|
|
@ -412,7 +415,18 @@ public:
|
|||
*
|
||||
* @param enable Whether to enable (true) or disable (false) auto-acks
|
||||
*/
|
||||
void setAutoAck(bool enable);
|
||||
void setAutoAck(const bool enable) const ;
|
||||
|
||||
/**
|
||||
* Enable or disable auto-acknowlede packets on a per pipeline basis.
|
||||
*
|
||||
* AA is enabled by default, so it's only needed if you want to turn
|
||||
* it off/on for some reason on a per pipeline basis.
|
||||
*
|
||||
* @param which pipeline to modify
|
||||
* @param enable Whether to enable (true) or disable (false) auto-acks
|
||||
*/
|
||||
void setAutoAck( const uint8_t pipe, const bool enable ) const ;
|
||||
|
||||
/**
|
||||
* Test whether there was a carrier on the line for the
|
||||
|
|
@ -422,7 +436,7 @@ public:
|
|||
*
|
||||
* @return true if was carrier, false if not
|
||||
*/
|
||||
boolean testCarrier(void);
|
||||
boolean testCarrier(void) const ;
|
||||
|
||||
/**
|
||||
* Test whether a signal (carrier or otherwise) greater than
|
||||
|
|
@ -434,7 +448,7 @@ public:
|
|||
*
|
||||
* @return true if signal => -64dBm, false if not
|
||||
*/
|
||||
boolean testRPD(void);
|
||||
boolean testRPD(void) const ;
|
||||
|
||||
/**
|
||||
* Set Power Amplifier (PA) level to one of four levels.
|
||||
|
|
@ -445,27 +459,27 @@ public:
|
|||
*
|
||||
* @param Desired PA level.
|
||||
*/
|
||||
void setPALevel( rf24_pa_dbm_e level ) ;
|
||||
void setPALevel( const rf24_pa_dbm_e level ) const ;
|
||||
|
||||
/**
|
||||
* Fetches the current PA level. See setPALevel for
|
||||
* return value definitions.
|
||||
*/
|
||||
rf24_pa_dbm_e getPALevel( void ) ;
|
||||
rf24_pa_dbm_e getPALevel( void ) const ;
|
||||
|
||||
/**
|
||||
* Set the transmission data rate
|
||||
*
|
||||
* @param speed RF24_250KBPS for 250kbs, RF24_1MBPS for 1Mbps, or RF24_2MBPS for 2Mbps
|
||||
*/
|
||||
void setDataRate(rf24_datarate_e speed);
|
||||
void setDataRate(const rf24_datarate_e speed);
|
||||
|
||||
/**
|
||||
* Set the CRC length
|
||||
*
|
||||
* @param length RF24_CRC_8 for 8-bit or RF24_CRC_16 for 16-bit
|
||||
*/
|
||||
void setCRCLength(rf24_crclength_e length);
|
||||
void setCRCLength(const rf24_crclength_e length) const ;
|
||||
|
||||
/**@}*/
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in New Issue