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ahoy/patches/RF24_Hal.patch

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diff --git a/RF24.cpp b/RF24.cpp
index c0cc732..b6708d9 100644
--- a/RF24.cpp
+++ b/RF24.cpp
@@ -12,228 +12,24 @@
/****************************************************************************/
-void RF24::csn(bool mode)
-{
-#if defined(RF24_TINY)
- if (ce_pin != csn_pin) {
- digitalWrite(csn_pin, mode);
- }
- else {
- if (mode == HIGH) {
- PORTB |= (1 << PINB2); // SCK->CSN HIGH
- delayMicroseconds(RF24_CSN_SETTLE_HIGH_DELAY); // allow csn to settle.
- }
- else {
- PORTB &= ~(1 << PINB2); // SCK->CSN LOW
- delayMicroseconds(RF24_CSN_SETTLE_LOW_DELAY); // allow csn to settle
- }
- }
- // Return, CSN toggle complete
- return;
-
-#elif defined(ARDUINO) && !defined(RF24_SPI_TRANSACTIONS)
- // Minimum ideal SPI bus speed is 2x data rate
- // If we assume 2Mbs data rate and 16Mhz clock, a
- // divider of 4 is the minimum we want.
- // CLK:BUS 8Mhz:2Mhz, 16Mhz:4Mhz, or 20Mhz:5Mhz
-
- #if !defined(SOFTSPI)
- // applies to SPI_UART and inherent hardware SPI
- #if defined(RF24_SPI_PTR)
- _spi->setBitOrder(MSBFIRST);
- _spi->setDataMode(SPI_MODE0);
-
- #if !defined(F_CPU) || F_CPU < 20000000
- _spi->setClockDivider(SPI_CLOCK_DIV2);
- #elif F_CPU < 40000000
- _spi->setClockDivider(SPI_CLOCK_DIV4);
- #elif F_CPU < 80000000
- _spi->setClockDivider(SPI_CLOCK_DIV8);
- #elif F_CPU < 160000000
- _spi->setClockDivider(SPI_CLOCK_DIV16);
- #elif F_CPU < 320000000
- _spi->setClockDivider(SPI_CLOCK_DIV32);
- #elif F_CPU < 640000000
- _spi->setClockDivider(SPI_CLOCK_DIV64);
- #elif F_CPU < 1280000000
- _spi->setClockDivider(SPI_CLOCK_DIV128);
- #else // F_CPU >= 1280000000
- #error "Unsupported CPU frequency. Please set correct SPI divider."
- #endif // F_CPU to SPI_CLOCK_DIV translation
-
- #else // !defined(RF24_SPI_PTR)
- _SPI.setBitOrder(MSBFIRST);
- _SPI.setDataMode(SPI_MODE0);
-
- #if !defined(F_CPU) || F_CPU < 20000000
- _SPI.setClockDivider(SPI_CLOCK_DIV2);
- #elif F_CPU < 40000000
- _SPI.setClockDivider(SPI_CLOCK_DIV4);
- #elif F_CPU < 80000000
- _SPI.setClockDivider(SPI_CLOCK_DIV8);
- #elif F_CPU < 160000000
- _SPI.setClockDivider(SPI_CLOCK_DIV16);
- #elif F_CPU < 320000000
- _SPI.setClockDivider(SPI_CLOCK_DIV32);
- #elif F_CPU < 640000000
- _SPI.setClockDivider(SPI_CLOCK_DIV64);
- #elif F_CPU < 1280000000
- _SPI.setClockDivider(SPI_CLOCK_DIV128);
- #else // F_CPU >= 1280000000
- #error "Unsupported CPU frequency. Please set correct SPI divider."
- #endif // F_CPU to SPI_CLOCK_DIV translation
- #endif // !defined(RF24_SPI_PTR)
- #endif // !defined(SOFTSPI)
-
-#elif defined(RF24_RPi)
- if (!mode)
- _SPI.chipSelect(csn_pin);
-#endif // defined(RF24_RPi)
-
-#if !defined(RF24_LINUX)
- digitalWrite(csn_pin, mode);
- delayMicroseconds(csDelay);
-#else
- static_cast<void>(mode); // ignore -Wunused-parameter
-#endif // !defined(RF24_LINUX)
-}
-
-/****************************************************************************/
-
void RF24::ce(bool level)
{
-#ifndef RF24_LINUX
- //Allow for 3-pin use on ATTiny
- if (ce_pin != csn_pin) {
-#endif
- digitalWrite(ce_pin, level);
-#ifndef RF24_LINUX
- }
-#endif
-}
-
-/****************************************************************************/
-
-inline void RF24::beginTransaction()
-{
-#if defined(RF24_SPI_TRANSACTIONS)
- #if defined(RF24_SPI_PTR)
- #if defined(RF24_RP2)
- _spi->beginTransaction(spi_speed);
- #else // ! defined (RF24_RP2)
- _spi->beginTransaction(SPISettings(spi_speed, MSBFIRST, SPI_MODE0));
- #endif // ! defined (RF24_RP2)
- #else // !defined(RF24_SPI_PTR)
- _SPI.beginTransaction(SPISettings(spi_speed, MSBFIRST, SPI_MODE0));
- #endif // !defined(RF24_SPI_PTR)
-#endif // defined (RF24_SPI_TRANSACTIONS)
- csn(LOW);
-}
-
-/****************************************************************************/
-
-inline void RF24::endTransaction()
-{
- csn(HIGH);
-#if defined(RF24_SPI_TRANSACTIONS)
- #if defined(RF24_SPI_PTR)
- _spi->endTransaction();
- #else // !defined(RF24_SPI_PTR)
- _SPI.endTransaction();
- #endif // !defined(RF24_SPI_PTR)
-#endif // defined (RF24_SPI_TRANSACTIONS)
+ hal->ce(level);
}
/****************************************************************************/
void RF24::read_register(uint8_t reg, uint8_t* buf, uint8_t len)
{
-#if defined(RF24_LINUX) || defined(RF24_RP2)
- beginTransaction(); //configures the spi settings for RPi, locks mutex and setting csn low
- uint8_t* prx = spi_rxbuff;
- uint8_t* ptx = spi_txbuff;
- uint8_t size = static_cast<uint8_t>(len + 1); // Add register value to transmit buffer
-
- *ptx++ = (R_REGISTER | reg);
-
- while (len--) {
- *ptx++ = RF24_NOP; // Dummy operation, just for reading
- }
-
- #if defined(RF24_RP2)
- _spi->transfernb((const uint8_t*)spi_txbuff, spi_rxbuff, size);
- #else // !defined (RF24_RP2)
- _SPI.transfernb(reinterpret_cast<char*>(spi_txbuff), reinterpret_cast<char*>(spi_rxbuff), size);
- #endif // !defined (RF24_RP2)
-
- status = *prx++; // status is 1st byte of receive buffer
-
- // decrement before to skip status byte
- while (--size) {
- *buf++ = *prx++;
- }
-
- endTransaction(); // unlocks mutex and setting csn high
-
-#else // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
- beginTransaction();
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(R_REGISTER | reg);
- while (len--) {
- *buf++ = _spi->transfer(0xFF);
- }
-
- #else // !defined(RF24_SPI_PTR)
- status = _SPI.transfer(R_REGISTER | reg);
- while (len--) {
- *buf++ = _SPI.transfer(0xFF);
- }
-
- #endif // !defined(RF24_SPI_PTR)
- endTransaction();
-#endif // !defined(RF24_LINUX) && !defined(RF24_RP2)
+ status = hal->read(R_REGISTER | reg, buf, len);
}
/****************************************************************************/
uint8_t RF24::read_register(uint8_t reg)
{
- uint8_t result;
-
-#if defined(RF24_LINUX) || defined(RF24_RP2)
- beginTransaction();
-
- uint8_t* prx = spi_rxbuff;
- uint8_t* ptx = spi_txbuff;
- *ptx++ = (R_REGISTER | reg);
- *ptx++ = RF24_NOP; // Dummy operation, just for reading
-
- #if defined(RF24_RP2)
- _spi->transfernb((const uint8_t*)spi_txbuff, spi_rxbuff, 2);
- #else // !defined(RF24_RP2)
- _SPI.transfernb(reinterpret_cast<char*>(spi_txbuff), reinterpret_cast<char*>(spi_rxbuff), 2);
- #endif // !defined(RF24_RP2)
-
- status = *prx; // status is 1st byte of receive buffer
- result = *++prx; // result is 2nd byte of receive buffer
-
- endTransaction();
-#else // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
- beginTransaction();
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(R_REGISTER | reg);
- result = _spi->transfer(0xff);
-
- #else // !defined(RF24_SPI_PTR)
- status = _SPI.transfer(R_REGISTER | reg);
- result = _SPI.transfer(0xff);
-
- #endif // !defined(RF24_SPI_PTR)
- endTransaction();
-#endif // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
+ uint8_t result = 0xff;
+ status = hal->read(R_REGISTER | reg, &result, sizeof(result));
return result;
}
@@ -241,43 +37,7 @@ uint8_t RF24::read_register(uint8_t reg)
void RF24::write_register(uint8_t reg, const uint8_t* buf, uint8_t len)
{
-#if defined(RF24_LINUX) || defined(RF24_RP2)
- beginTransaction();
- uint8_t* prx = spi_rxbuff;
- uint8_t* ptx = spi_txbuff;
- uint8_t size = static_cast<uint8_t>(len + 1); // Add register value to transmit buffer
-
- *ptx++ = (W_REGISTER | (REGISTER_MASK & reg));
- while (len--) {
- *ptx++ = *buf++;
- }
-
- #if defined(RF24_RP2)
- _spi->transfernb((const uint8_t*)spi_txbuff, spi_rxbuff, size);
- #else // !defined(RF24_RP2)
- _SPI.transfernb(reinterpret_cast<char*>(spi_txbuff), reinterpret_cast<char*>(spi_rxbuff), size);
- #endif // !defined(RF24_RP2)
-
- status = *prx; // status is 1st byte of receive buffer
- endTransaction();
-#else // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
- beginTransaction();
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(W_REGISTER | reg);
- while (len--) {
- _spi->transfer(*buf++);
- }
-
- #else // !defined(RF24_SPI_PTR)
- status = _SPI.transfer(W_REGISTER | reg);
- while (len--) {
- _SPI.transfer(*buf++);
- }
-
- #endif // !defined(RF24_SPI_PTR)
- endTransaction();
-#endif // !defined(RF24_LINUX) && !defined(RF24_RP2)
+ status = hal->write(W_REGISTER | reg, buf, len);
}
/****************************************************************************/
@@ -288,47 +48,11 @@ void RF24::write_register(uint8_t reg, uint8_t value, bool is_cmd_only)
if (reg != RF24_NOP) { // don't print the get_status() operation
IF_SERIAL_DEBUG(printf_P(PSTR("write_register(%02x)\r\n"), reg));
}
- beginTransaction();
-#if defined(RF24_LINUX)
- status = _SPI.transfer(W_REGISTER | reg);
-#else // !defined(RF24_LINUX) || defined (RF24_RP2)
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(W_REGISTER | reg);
- #else // !defined (RF24_SPI_PTR)
- status = _SPI.transfer(W_REGISTER | reg);
- #endif // !defined (RF24_SPI_PTR)
-#endif // !defined(RF24_LINUX) || defined(RF24_RP2)
- endTransaction();
+ status = hal->write(W_REGISTER | reg, nullptr, 0);
}
else {
IF_SERIAL_DEBUG(printf_P(PSTR("write_register(%02x,%02x)\r\n"), reg, value));
-#if defined(RF24_LINUX) || defined(RF24_RP2)
- beginTransaction();
- uint8_t* prx = spi_rxbuff;
- uint8_t* ptx = spi_txbuff;
- *ptx++ = (W_REGISTER | reg);
- *ptx = value;
-
- #if defined(RF24_RP2)
- _spi->transfernb((const uint8_t*)spi_txbuff, spi_rxbuff, 2);
- #else // !defined(RF24_RP2)
- _SPI.transfernb(reinterpret_cast<char*>(spi_txbuff), reinterpret_cast<char*>(spi_rxbuff), 2);
- #endif // !defined(RF24_RP2)
-
- status = *prx++; // status is 1st byte of receive buffer
- endTransaction();
-#else // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
- beginTransaction();
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(W_REGISTER | reg);
- _spi->transfer(value);
- #else // !defined(RF24_SPI_PTR)
- status = _SPI.transfer(W_REGISTER | reg);
- _SPI.transfer(value);
- #endif // !defined(RF24_SPI_PTR)
- endTransaction();
-#endif // !defined(RF24_LINUX) && !defined(RF24_RP2)
+ status = hal->write(W_REGISTER | reg, &value, sizeof(value));
}
}
@@ -347,60 +71,8 @@ void RF24::write_payload(const void* buf, uint8_t data_len, const uint8_t writeT
data_len = rf24_min(data_len, static_cast<uint8_t>(32));
}
- //printf("[Writing %u bytes %u blanks]",data_len,blank_len);
IF_SERIAL_DEBUG(printf("[Writing %u bytes %u blanks]\n", data_len, blank_len););
-
-#if defined(RF24_LINUX) || defined(RF24_RP2)
- beginTransaction();
- uint8_t* prx = spi_rxbuff;
- uint8_t* ptx = spi_txbuff;
- uint8_t size;
- size = static_cast<uint8_t>(data_len + blank_len + 1); // Add register value to transmit buffer
-
- *ptx++ = writeType;
- while (data_len--) {
- *ptx++ = *current++;
- }
-
- while (blank_len--) {
- *ptx++ = 0;
- }
-
- #if defined(RF24_RP2)
- _spi->transfernb((const uint8_t*)spi_txbuff, spi_rxbuff, size);
- #else // !defined(RF24_RP2)
- _SPI.transfernb(reinterpret_cast<char*>(spi_txbuff), reinterpret_cast<char*>(spi_rxbuff), size);
- #endif // !defined(RF24_RP2)
-
- status = *prx; // status is 1st byte of receive buffer
- endTransaction();
-
-#else // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
- beginTransaction();
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(writeType);
- while (data_len--) {
- _spi->transfer(*current++);
- }
-
- while (blank_len--) {
- _spi->transfer(0);
- }
-
- #else // !defined(RF24_SPI_PTR)
- status = _SPI.transfer(writeType);
- while (data_len--) {
- _SPI.transfer(*current++);
- }
-
- while (blank_len--) {
- _SPI.transfer(0);
- }
-
- #endif // !defined(RF24_SPI_PTR)
- endTransaction();
-#endif // !defined(RF24_LINUX) && !defined(RF24_RP2)
+ status = hal->write(writeType, current, data_len, blank_len);
}
/****************************************************************************/
@@ -421,65 +93,7 @@ void RF24::read_payload(void* buf, uint8_t data_len)
//printf("[Reading %u bytes %u blanks]",data_len,blank_len);
IF_SERIAL_DEBUG(printf("[Reading %u bytes %u blanks]\n", data_len, blank_len););
-
-#if defined(RF24_LINUX) || defined(RF24_RP2)
- beginTransaction();
- uint8_t* prx = spi_rxbuff;
- uint8_t* ptx = spi_txbuff;
- uint8_t size;
- size = static_cast<uint8_t>(data_len + blank_len + 1); // Add register value to transmit buffer
-
- *ptx++ = R_RX_PAYLOAD;
- while (--size) {
- *ptx++ = RF24_NOP;
- }
-
- size = static_cast<uint8_t>(data_len + blank_len + 1); // Size has been lost during while, re affect
-
- #if defined(RF24_RP2)
- _spi->transfernb((const uint8_t*)spi_txbuff, spi_rxbuff, size);
- #else // !defined(RF24_RP2)
- _SPI.transfernb(reinterpret_cast<char*>(spi_txbuff), reinterpret_cast<char*>(spi_rxbuff), size);
- #endif // !defined(RF24_RP2)
-
- status = *prx++; // 1st byte is status
-
- if (data_len > 0) {
- // Decrement before to skip 1st status byte
- while (--data_len) {
- *current++ = *prx++;
- }
-
- *current = *prx;
- }
- endTransaction();
-#else // !defined(RF24_LINUX) && !defined(RF24_RP2)
-
- beginTransaction();
- #if defined(RF24_SPI_PTR)
- status = _spi->transfer(R_RX_PAYLOAD);
- while (data_len--) {
- *current++ = _spi->transfer(0xFF);
- }
-
- while (blank_len--) {
- _spi->transfer(0xFF);
- }
-
- #else // !defined(RF24_SPI_PTR)
- status = _SPI.transfer(R_RX_PAYLOAD);
- while (data_len--) {
- *current++ = _SPI.transfer(0xFF);
- }
-
- while (blank_len--) {
- _SPI.transfer(0xff);
- }
-
- #endif // !defined(RF24_SPI_PTR)
- endTransaction();
-
-#endif // !defined(RF24_LINUX) && !defined(RF24_RP2)
+ status = hal->read(R_RX_PAYLOAD, current, data_len, blank_len);
}
/****************************************************************************/
@@ -577,16 +191,16 @@ uint8_t RF24::sprintf_address_register(char* out_buffer, uint8_t reg, uint8_t qt
/****************************************************************************/
-RF24::RF24(rf24_gpio_pin_t _cepin, rf24_gpio_pin_t _cspin, uint32_t _spi_speed)
- : ce_pin(_cepin), csn_pin(_cspin), spi_speed(_spi_speed), payload_size(32), _is_p_variant(false), _is_p0_rx(false), addr_width(5), dynamic_payloads_enabled(true), csDelay(5)
+RF24::RF24(RF24_hal* _hal)
+ : hal(_hal), payload_size(32), _is_p_variant(false), _is_p0_rx(false), addr_width(5), dynamic_payloads_enabled(true), csDelay(5)
{
_init_obj();
}
/****************************************************************************/
-RF24::RF24(uint32_t _spi_speed)
- : ce_pin(RF24_PIN_INVALID), csn_pin(RF24_PIN_INVALID), spi_speed(_spi_speed), payload_size(32), _is_p_variant(false), _is_p0_rx(false), addr_width(5), dynamic_payloads_enabled(true), csDelay(5)
+RF24::RF24()
+ : hal(nullptr), payload_size(32), _is_p_variant(false), _is_p0_rx(false), addr_width(5), dynamic_payloads_enabled(true), csDelay(5)
{
_init_obj();
}
@@ -595,16 +209,7 @@ RF24::RF24(uint32_t _spi_speed)
void RF24::_init_obj()
{
- // Use a pointer on the Arduino platform
-
-#if defined(RF24_SPI_PTR) && !defined(RF24_RP2)
- _spi = &SPI;
-#endif // defined (RF24_SPI_PTR)
-
pipe0_reading_address[0] = 0;
- if (spi_speed <= 35000) { //Handle old BCM2835 speed constants, default to RF24_SPI_SPEED
- spi_speed = RF24_SPI_SPEED;
- }
}
/****************************************************************************/
@@ -677,19 +282,6 @@ static const PROGMEM char* const rf24_pa_dbm_e_str_P[] = {
rf24_pa_dbm_e_str_3,
};
- #if defined(RF24_LINUX)
-static const char rf24_csn_e_str_0[] = "CE0 (PI Hardware Driven)";
-static const char rf24_csn_e_str_1[] = "CE1 (PI Hardware Driven)";
-static const char rf24_csn_e_str_2[] = "CE2 (PI Hardware Driven)";
-static const char rf24_csn_e_str_3[] = "Custom GPIO Software Driven";
-static const char* const rf24_csn_e_str_P[] = {
- rf24_csn_e_str_0,
- rf24_csn_e_str_1,
- rf24_csn_e_str_2,
- rf24_csn_e_str_3,
-};
- #endif // defined(RF24_LINUX)
-
static const PROGMEM char rf24_feature_e_str_on[] = "= Enabled";
static const PROGMEM char rf24_feature_e_str_allowed[] = "= Allowed";
static const PROGMEM char rf24_feature_e_str_open[] = " open ";
@@ -704,19 +296,6 @@ static const PROGMEM char* const rf24_feature_e_str_P[] = {
void RF24::printDetails(void)
{
-
- #if defined(RF24_LINUX)
- printf("================ SPI Configuration ================\n");
- uint8_t bus_ce = static_cast<uint8_t>(csn_pin % 10);
- uint8_t bus_numb = static_cast<uint8_t>((csn_pin - bus_ce) / 10);
- printf("CSN Pin\t\t= /dev/spidev%d.%d\n", bus_numb, bus_ce);
- printf("CE Pin\t\t= Custom GPIO%d\n", ce_pin);
- #endif
- printf_P(PSTR("SPI Speedz\t= %d Mhz\n"), static_cast<uint8_t>(spi_speed / 1000000)); //Print the SPI speed on non-Linux devices
- #if defined(RF24_LINUX)
- printf("================ NRF Configuration ================\n");
- #endif // defined(RF24_LINUX)
-
print_status(get_status());
print_address_register(PSTR("RX_ADDR_P0-1"), RX_ADDR_P0, 2);
@@ -748,19 +327,6 @@ void RF24::printDetails(void)
void RF24::printPrettyDetails(void)
{
-
- #if defined(RF24_LINUX)
- printf("================ SPI Configuration ================\n");
- uint8_t bus_ce = static_cast<uint8_t>(csn_pin % 10);
- uint8_t bus_numb = static_cast<uint8_t>((csn_pin - bus_ce) / 10);
- printf("CSN Pin\t\t\t= /dev/spidev%d.%d\n", bus_numb, bus_ce);
- printf("CE Pin\t\t\t= Custom GPIO%d\n", ce_pin);
- #endif
- printf_P(PSTR("SPI Frequency\t\t= %d Mhz\n"), static_cast<uint8_t>(spi_speed / 1000000)); //Print the SPI speed on non-Linux devices
- #if defined(RF24_LINUX)
- printf("================ NRF Configuration ================\n");
- #endif // defined(RF24_LINUX)
-
uint8_t channel = getChannel();
uint16_t frequency = static_cast<uint16_t>(channel + 2400);
printf_P(PSTR("Channel\t\t\t= %u (~ %u MHz)\r\n"), channel, frequency);
@@ -846,11 +412,6 @@ void RF24::printPrettyDetails(void)
uint16_t RF24::sprintfPrettyDetails(char* debugging_information)
{
const char* format_string = PSTR(
- "================ SPI Configuration ================\n"
- "CSN Pin\t\t\t= %d\n"
- "CE Pin\t\t\t= %d\n"
- "SPI Frequency\t\t= %d Mhz\n"
- "================ NRF Configuration ================\n"
"Channel\t\t\t= %u (~ %u MHz)\n"
"RF Data Rate\t\t" PRIPSTR "\n"
"RF Power Amplifier\t" PRIPSTR "\n"
@@ -870,8 +431,7 @@ uint16_t RF24::sprintfPrettyDetails(char* debugging_information)
const char* format_str3 = PSTR("\nPipe %d (" PRIPSTR ") bound\t= 0x");
uint16_t offset = sprintf_P(
- debugging_information, format_string, csn_pin, ce_pin,
- static_cast<uint8_t>(spi_speed / 1000000), getChannel(),
+ debugging_information, format_string, getChannel(),
static_cast<uint16_t>(getChannel() + 2400),
(char*)(pgm_read_ptr(&rf24_datarate_e_str_P[getDataRate()])),
(char*)(pgm_read_ptr(&rf24_pa_dbm_e_str_P[getPALevel()])),
@@ -940,87 +500,26 @@ void RF24::encodeRadioDetails(uint8_t* encoded_details)
*encoded_details++ = read_register(i);
}
}
- *encoded_details++ = ce_pin >> 4;
- *encoded_details++ = ce_pin & 0xFF;
- *encoded_details++ = csn_pin >> 4;
- *encoded_details++ = csn_pin & 0xFF;
- *encoded_details = static_cast<uint8_t>((spi_speed / 1000000) | _BV(_is_p_variant * 4));
}
#endif // !defined(MINIMAL)
/****************************************************************************/
-#if defined(RF24_SPI_PTR) || defined(DOXYGEN_FORCED)
-// does not apply to RF24_LINUX
-bool RF24::begin(_SPI* spiBus)
+bool RF24::begin(void)
{
- _spi = spiBus;
return _init_pins() && _init_radio();
}
/****************************************************************************/
-bool RF24::begin(_SPI* spiBus, rf24_gpio_pin_t _cepin, rf24_gpio_pin_t _cspin)
+bool RF24::begin(RF24_hal* _hal)
{
- ce_pin = _cepin;
- csn_pin = _cspin;
- return begin(spiBus);
-}
-
-#endif // defined (RF24_SPI_PTR) || defined (DOXYGEN_FORCED)
-
-/****************************************************************************/
-
-bool RF24::begin(rf24_gpio_pin_t _cepin, rf24_gpio_pin_t _cspin)
-{
- ce_pin = _cepin;
- csn_pin = _cspin;
+ hal = _hal;
return begin();
}
/****************************************************************************/
-bool RF24::begin(void)
-{
-#if defined(RF24_LINUX)
- #if defined(RF24_RPi)
- switch (csn_pin) { // Ensure valid hardware CS pin
- case 0: break;
- case 1: break;
- // Allow BCM2835 enums for RPi
- case 8: csn_pin = 0; break;
- case 7: csn_pin = 1; break;
- case 18: csn_pin = 10; break; // to make it work on SPI1
- case 17: csn_pin = 11; break;
- case 16: csn_pin = 12; break;
- default: csn_pin = 0; break;
- }
- #endif // RF24_RPi
-
- _SPI.begin(csn_pin, spi_speed);
-
-#elif defined(XMEGA_D3)
- _spi->begin(csn_pin);
-
-#elif defined(RF24_RP2)
- _spi = new SPI();
- _spi->begin(PICO_DEFAULT_SPI ? spi1 : spi0);
-
-#else // using an Arduino platform || defined (LITTLEWIRE)
-
- #if defined(RF24_SPI_PTR)
- _spi->begin();
- #else // !defined(RF24_SPI_PTR)
- _SPI.begin();
- #endif // !defined(RF24_SPI_PTR)
-
-#endif // !defined(XMEGA_D3) && !defined(RF24_LINUX)
-
- return _init_pins() && _init_radio();
-}
-
-/****************************************************************************/
-
bool RF24::_init_pins()
{
if (!isValid()) {
@@ -1028,46 +527,7 @@ bool RF24::_init_pins()
return false;
}
-#if defined(RF24_LINUX)
-
- #if defined(MRAA)
- GPIO();
- gpio.begin(ce_pin, csn_pin);
- #endif
-
- pinMode(ce_pin, OUTPUT);
- ce(LOW);
- delay(100);
-
-#elif defined(LITTLEWIRE)
- pinMode(csn_pin, OUTPUT);
- csn(HIGH);
-
-#elif defined(XMEGA_D3)
- if (ce_pin != csn_pin) {
- pinMode(ce_pin, OUTPUT);
- };
- ce(LOW);
- csn(HIGH);
- delay(200);
-
-#else // using an Arduino platform
-
- // Initialize pins
- if (ce_pin != csn_pin) {
- pinMode(ce_pin, OUTPUT);
- pinMode(csn_pin, OUTPUT);
- }
-
- ce(LOW);
- csn(HIGH);
-
- #if defined(__ARDUINO_X86__)
- delay(100);
- #endif
-#endif // !defined(XMEGA_D3) && !defined(LITTLEWIRE) && !defined(RF24_LINUX)
-
- return true; // assuming pins are connected properly
+ return hal->begin();
}
/****************************************************************************/
@@ -1151,7 +611,7 @@ bool RF24::isChipConnected()
bool RF24::isValid()
{
- return ce_pin != RF24_PIN_INVALID && csn_pin != RF24_PIN_INVALID;
+ return hal != nullptr;
}
/****************************************************************************/
@@ -1676,15 +1136,8 @@ void RF24::closeReadingPipe(uint8_t pipe)
void RF24::toggle_features(void)
{
- beginTransaction();
-#if defined(RF24_SPI_PTR)
- status = _spi->transfer(ACTIVATE);
- _spi->transfer(0x73);
-#else
- status = _SPI.transfer(ACTIVATE);
- _SPI.transfer(0x73);
-#endif
- endTransaction();
+ uint8_t value = 0x73;
+ status = hal->write(ACTIVATE, &value, sizeof(value));
}
/****************************************************************************/
diff --git a/RF24.h b/RF24.h
index dbd32ae..f774bba 100644
--- a/RF24.h
+++ b/RF24.h
@@ -16,12 +16,7 @@
#define __RF24_H__
#include "RF24_config.h"
-
-#if defined(RF24_LINUX) || defined(LITTLEWIRE)
- #include "utility/includes.h"
-#elif defined SOFTSPI
- #include <DigitalIO.h>
-#endif
+#include "RF24_hal.h"
/**
* @defgroup PALevel Power Amplifier level
@@ -115,29 +110,8 @@ typedef enum
class RF24
{
private:
-#ifdef SOFTSPI
- SoftSPI<SOFT_SPI_MISO_PIN, SOFT_SPI_MOSI_PIN, SOFT_SPI_SCK_PIN, SPI_MODE> spi;
-#elif defined(SPI_UART)
- SPIUARTClass uspi;
-#endif
-
-#if defined(RF24_LINUX) || defined(XMEGA_D3) /* XMEGA can use SPI class */
- SPI spi;
-#endif // defined (RF24_LINUX) || defined (XMEGA_D3)
-#if defined(RF24_SPI_PTR)
- _SPI* _spi;
-#endif // defined (RF24_SPI_PTR)
-#if defined(MRAA)
- GPIO gpio;
-#endif
+ RF24_hal *hal;
- rf24_gpio_pin_t ce_pin; /* "Chip Enable" pin, activates the RX or TX role */
- rf24_gpio_pin_t csn_pin; /* SPI Chip select */
- uint32_t spi_speed; /* SPI Bus Speed */
-#if defined(RF24_LINUX) || defined(XMEGA_D3) || defined(RF24_RP2)
- 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
uint8_t status; /* The status byte returned from every SPI transaction */
uint8_t payload_size; /* Fixed size of payloads */
uint8_t pipe0_reading_address[5]; /* Last address set on pipe 0 for reading. */
@@ -146,16 +120,6 @@ private:
bool _is_p0_rx; /* For keeping track of pipe 0's usage in user-triggered RX mode. */
protected:
- /**
- * SPI transactions
- *
- * Common code for SPI transactions including CSN toggle
- *
- */
- inline void beginTransaction();
-
- inline void endTransaction();
-
/** Whether ack payloads are enabled. */
bool ack_payloads_enabled;
/** The address width to use (3, 4 or 5 bytes). */
@@ -198,30 +162,15 @@ public:
*
* See [Related Pages](pages.html) for device specific information
*
- * @param _cepin The pin attached to Chip Enable on the RF module
- * @param _cspin The pin attached to Chip Select (often labeled CSN) on the radio module.
- * - For the Arduino Due board, the [Arduino Due extended SPI feature](https://www.arduino.cc/en/Reference/DueExtendedSPI)
- * is not supported. This means that the Due's pins 4, 10, or 52 are not mandated options (can use any digital output pin) for
- * the radio's CSN pin.
- * @param _spi_speed The SPI speed in Hz ie: 1000000 == 1Mhz
- * - Users can specify default SPI speed by modifying @ref RF24_SPI_SPEED in @ref RF24_config.h
- * - For Arduino, the default SPI speed will only be properly configured this way on devices supporting SPI TRANSACTIONS
- * - Older/Unsupported Arduino devices will use a default clock divider & settings configuration
- * - For Linux: The old way of setting SPI speeds using BCM2835 driver enums has been removed as of v1.3.7
+ * @param _hal A pointer to the device specific hardware abstraction layer
*/
- RF24(rf24_gpio_pin_t _cepin, rf24_gpio_pin_t _cspin, uint32_t _spi_speed = RF24_SPI_SPEED);
+ RF24(RF24_hal *_hal);
/**
* A constructor for initializing the radio's hardware dynamically
- * @warning You MUST use begin(rf24_gpio_pin_t, rf24_gpio_pin_t) or begin(_SPI*, rf24_gpio_pin_t, rf24_gpio_pin_t) to pass both the
- * digital output pin numbers connected to the radio's CE and CSN pins.
- * @param _spi_speed The SPI speed in Hz ie: 1000000 == 1Mhz
- * - Users can specify default SPI speed by modifying @ref RF24_SPI_SPEED in @ref RF24_config.h
- * - For Arduino, the default SPI speed will only be properly configured this way on devices supporting SPI TRANSACTIONS
- * - Older/Unsupported Arduino devices will use a default clock divider & settings configuration
- * - For Linux: The old way of setting SPI speeds using BCM2835 driver enums has been removed as of v1.3.7
+ * @warning You MUST use begin(RF24_hal*)
*/
- RF24(uint32_t _spi_speed = RF24_SPI_SPEED);
+ RF24(void);
#if defined(RF24_LINUX)
virtual ~RF24() {};
@@ -243,58 +192,16 @@ public:
*/
bool begin(void);
-#if defined(RF24_SPI_PTR) || defined(DOXYGEN_FORCED)
/**
* Same as begin(), but allows specifying a non-default SPI bus to use.
*
- * @note This function assumes the `SPI::begin()` method was called before to
- * calling this function.
- *
- * @warning This function is for the Arduino platforms only
- *
- * @param spiBus A pointer or reference to an instantiated SPI bus object.
- * The `_SPI` datatype is a "wrapped" definition that will represent
- * various SPI implementations based on the specified platform.
- * @see Review the [Arduino support page](md_docs_arduino.html).
- *
- * @return same result as begin()
- */
- bool begin(_SPI* spiBus);
-
- /**
- * Same as begin(), but allows dynamically specifying a SPI bus, CE pin,
- * and CSN pin to use.
- *
- * @note This function assumes the `SPI::begin()` method was called before to
- * calling this function.
- *
* @warning This function is for the Arduino platforms only
*
- * @param spiBus A pointer or reference to an instantiated SPI bus object.
- * The `_SPI` datatype is a "wrapped" definition that will represent
- * various SPI implementations based on the specified platform.
- * @param _cepin The pin attached to Chip Enable on the RF module
- * @param _cspin The pin attached to Chip Select (often labeled CSN) on the radio module.
- * - For the Arduino Due board, the [Arduino Due extended SPI feature](https://www.arduino.cc/en/Reference/DueExtendedSPI)
- * is not supported. This means that the Due's pins 4, 10, or 52 are not mandated options (can use any digital output pin) for the radio's CSN pin.
+ * @param _hal A pointer to the device specific hardware abstraction layer
*
- * @see Review the [Arduino support page](md_docs_arduino.html).
- *
- * @return same result as begin()
- */
- bool begin(_SPI* spiBus, rf24_gpio_pin_t _cepin, rf24_gpio_pin_t _cspin);
-#endif // defined (RF24_SPI_PTR) || defined (DOXYGEN_FORCED)
-
- /**
- * Same as begin(), but allows dynamically specifying a CE pin
- * and CSN pin to use.
- * @param _cepin The pin attached to Chip Enable on the RF module
- * @param _cspin The pin attached to Chip Select (often labeled CSN) on the radio module.
- * - For the Arduino Due board, the [Arduino Due extended SPI feature](https://www.arduino.cc/en/Reference/DueExtendedSPI)
- * is not supported. This means that the Due's pins 4, 10, or 52 are not mandated options (can use any digital output pin) for the radio's CSN pin.
* @return same result as begin()
*/
- bool begin(rf24_gpio_pin_t _cepin, rf24_gpio_pin_t _cspin);
+ bool begin(RF24_hal* _hal);
/**
* Checks if the chip is connected to the SPI bus
@@ -667,12 +574,12 @@ public:
* This function uses much less ram than other `*print*Details()` methods.
*
* @code
- * uint8_t encoded_details[43] = {0};
+ * uint8_t encoded_details[38] = {0};
* radio.encodeRadioDetails(encoded_details);
* @endcode
*
* @param encoded_status The uint8_t array that RF24 radio details are
- * encoded into. This array must be at least 43 bytes in length; any less would surely
+ * encoded into. This array must be at least 38 bytes in length; any less would surely
* cause undefined behavior.
*
* Registers names and/or data corresponding to the index of the `encoded_details` array:
@@ -704,9 +611,6 @@ public:
* | 35 | FIFO_STATUS |
* | 36 | DYNPD |
* | 37 | FEATURE |
- * | 38-39 | ce_pin |
- * | 40-41 | csn_pin |
- * | 42 | SPI speed (in MHz) or'd with (isPlusVariant << 4) |
*/
void encodeRadioDetails(uint8_t* encoded_status);
@@ -1896,18 +1800,6 @@ private:
*/
bool _init_pins();
- /**
- * Set chip select pin
- *
- * Running SPI bus at PI_CLOCK_DIV2 so we don't waste time transferring data
- * and best of all, we make use of the radio's FIFO buffers. A lower speed
- * means we're less likely to effectively leverage our FIFOs and pay a higher
- * AVR runtime cost as toll.
- *
- * @param mode HIGH to take this unit off the SPI bus, LOW to put it on
- */
- void csn(bool mode);
-
/**
* Set chip enable
*
diff --git a/RF24_hal.cpp b/RF24_hal.cpp
new file mode 100644
index 0000000..3cc78e4
--- /dev/null
+++ b/RF24_hal.cpp
@@ -0,0 +1 @@
+#include "RF24_hal.h"
diff --git a/RF24_hal.h b/RF24_hal.h
new file mode 100644
index 0000000..baceab3
--- /dev/null
+++ b/RF24_hal.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "RF24_config.h"
+
+class RF24_hal
+{
+public:
+ virtual void ce(bool level) = 0;
+ virtual uint8_t read(uint8_t cmd, uint8_t* buf, uint8_t len) = 0;
+ virtual uint8_t read(uint8_t cmd, uint8_t* buf, uint8_t data_len, uint8_t blank_len) = 0;
+ virtual uint8_t write(uint8_t cmd, const uint8_t* buf, uint8_t len) = 0;
+ virtual uint8_t write(uint8_t cmd, const uint8_t* buf, uint8_t len, uint8_t blank_len) = 0;
+ virtual bool begin() = 0;
+ virtual void end() = 0;
+};