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RadioLib/src/Module.cpp

614 wiersze
20 KiB
C++
Czysty Bezpośredni odnośnik Wina Historia

#include "Module.h"
// the following is probably only needed on non-Arduino builds
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#if RADIOLIB_DEBUG
// needed for debug print
#include <stdarg.h>
#endif
#if defined(RADIOLIB_BUILD_ARDUINO)
#include "ArduinoHal.h"
Module::Module(uint32_t cs, uint32_t irq, uint32_t rst, uint32_t gpio) : csPin(cs), irqPin(irq), rstPin(rst), gpioPin(gpio) {
this->hal = new ArduinoHal();
}
Module::Module(uint32_t cs, uint32_t irq, uint32_t rst, uint32_t gpio, SPIClass& spi, SPISettings spiSettings) : csPin(cs), irqPin(irq), rstPin(rst), gpioPin(gpio) {
this->hal = new ArduinoHal(spi, spiSettings);
}
#endif
Module::Module(RadioLibHal *hal, uint32_t cs, uint32_t irq, uint32_t rst, uint32_t gpio) : csPin(cs), irqPin(irq), rstPin(rst), gpioPin(gpio) {
this->hal = hal;
}
Module::Module(const Module& mod) {
*this = mod;
}
Module& Module::operator=(const Module& mod) {
memcpy((void*)&mod.spiConfig, &this->spiConfig, sizeof(SPIConfig_t));
this->csPin = mod.csPin;
this->irqPin = mod.irqPin;
this->rstPin = mod.rstPin;
this->gpioPin = mod.gpioPin;
return(*this);
}
static volatile const char info[] = RADIOLIB_INFO;
void Module::init() {
this->hal->init();
this->hal->pinMode(csPin, this->hal->GpioModeOutput);
this->hal->digitalWrite(csPin, this->hal->GpioLevelHigh);
RADIOLIB_DEBUG_BASIC_PRINTLN(RADIOLIB_INFO);
}
void Module::term() {
// stop hardware interfaces (if they were initialized by the library)
this->hal->term();
}
int16_t Module::SPIgetRegValue(uint32_t reg, uint8_t msb, uint8_t lsb) {
if((msb > 7) || (lsb > 7) || (lsb > msb)) {
return(RADIOLIB_ERR_INVALID_BIT_RANGE);
}
uint8_t rawValue = SPIreadRegister(reg);
uint8_t maskedValue = rawValue & ((0b11111111 << lsb) & (0b11111111 >> (7 - msb)));
return(maskedValue);
}
int16_t Module::SPIsetRegValue(uint32_t reg, uint8_t value, uint8_t msb, uint8_t lsb, uint8_t checkInterval, uint8_t checkMask) {
if((msb > 7) || (lsb > 7) || (lsb > msb)) {
return(RADIOLIB_ERR_INVALID_BIT_RANGE);
}
uint8_t currentValue = SPIreadRegister(reg);
uint8_t mask = ~((0b11111111 << (msb + 1)) | (0b11111111 >> (8 - lsb)));
uint8_t newValue = (currentValue & ~mask) | (value & mask);
SPIwriteRegister(reg, newValue);
#if RADIOLIB_SPI_PARANOID
// check register value each millisecond until check interval is reached
// some registers need a bit of time to process the change (e.g. SX127X_REG_OP_MODE)
RadioLibTime_t start = this->hal->micros();
#if RADIOLIB_DEBUG_SPI
uint8_t readValue = 0x00;
#endif
while(this->hal->micros() - start < (checkInterval * 1000)) {
uint8_t val = SPIreadRegister(reg);
if((val & checkMask) == (newValue & checkMask)) {
// check passed, we can stop the loop
return(RADIOLIB_ERR_NONE);
}
#if RADIOLIB_DEBUG_SPI
readValue = val;
#endif
}
// check failed, print debug info
RADIOLIB_DEBUG_SPI_PRINTLN();
RADIOLIB_DEBUG_SPI_PRINTLN("address:\t0x%X", reg);
RADIOLIB_DEBUG_SPI_PRINTLN("bits:\t\t%d %d", msb, lsb);
RADIOLIB_DEBUG_SPI_PRINTLN("value:\t\t0x%X", value);
RADIOLIB_DEBUG_SPI_PRINTLN("current:\t0x%X", currentValue);
RADIOLIB_DEBUG_SPI_PRINTLN("mask:\t\t0x%X", mask);
RADIOLIB_DEBUG_SPI_PRINTLN("new:\t\t0x%X", newValue);
RADIOLIB_DEBUG_SPI_PRINTLN("read:\t\t0x%X", readValue);
return(RADIOLIB_ERR_SPI_WRITE_FAILED);
#else
return(RADIOLIB_ERR_NONE);
#endif
}
void Module::SPIreadRegisterBurst(uint32_t reg, size_t numBytes, uint8_t* inBytes) {
if(!this->spiConfig.stream) {
SPItransfer(this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_READ], reg, NULL, inBytes, numBytes);
} else {
uint8_t cmd[6];
uint8_t* cmdPtr = cmd;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = (this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_READ] >> 8*i) & 0xFF;
}
for(int8_t i = (int8_t)((this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8) - 1); i >= 0; i--) {
*(cmdPtr++) = (reg >> 8*i) & 0xFF;
}
SPItransferStream(cmd, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 + this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8, false, NULL, inBytes, numBytes, true, RADIOLIB_MODULE_SPI_TIMEOUT);
}
}
uint8_t Module::SPIreadRegister(uint32_t reg) {
uint8_t resp = 0;
if(!spiConfig.stream) {
SPItransfer(this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_READ], reg, NULL, &resp, 1);
} else {
uint8_t cmd[6];
uint8_t* cmdPtr = cmd;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = (this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_READ] >> 8*i) & 0xFF;
}
for(int8_t i = (int8_t)((this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8) - 1); i >= 0; i--) {
*(cmdPtr++) = (reg >> 8*i) & 0xFF;
}
SPItransferStream(cmd, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 + this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8, false, NULL, &resp, 1, true, RADIOLIB_MODULE_SPI_TIMEOUT);
}
return(resp);
}
void Module::SPIwriteRegisterBurst(uint32_t reg, uint8_t* data, size_t numBytes) {
if(!spiConfig.stream) {
SPItransfer(spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_WRITE], reg, data, NULL, numBytes);
} else {
uint8_t cmd[6];
uint8_t* cmdPtr = cmd;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = (this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_WRITE] >> 8*i) & 0xFF;
}
for(int8_t i = (int8_t)((this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8) - 1); i >= 0; i--) {
*(cmdPtr++) = (reg >> 8*i) & 0xFF;
}
SPItransferStream(cmd, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 + this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8, true, data, NULL, numBytes, true, RADIOLIB_MODULE_SPI_TIMEOUT);
}
}
void Module::SPIwriteRegister(uint32_t reg, uint8_t data) {
if(!spiConfig.stream) {
SPItransfer(spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_WRITE], reg, &data, NULL, 1);
} else {
uint8_t cmd[6];
uint8_t* cmdPtr = cmd;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = (this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_WRITE] >> 8*i) & 0xFF;
}
for(int8_t i = (int8_t)((this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8) - 1); i >= 0; i--) {
*(cmdPtr++) = (reg >> 8*i) & 0xFF;
}
SPItransferStream(cmd, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 + this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8, true, &data, NULL, 1, true, RADIOLIB_MODULE_SPI_TIMEOUT);
}
}
void Module::SPItransfer(uint16_t cmd, uint32_t reg, uint8_t* dataOut, uint8_t* dataIn, size_t numBytes) {
// prepare the buffers
size_t buffLen = this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 + this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8 + numBytes;
#if RADIOLIB_STATIC_ONLY
uint8_t buffOut[RADIOLIB_STATIC_ARRAY_SIZE];
uint8_t buffIn[RADIOLIB_STATIC_ARRAY_SIZE];
#else
uint8_t* buffOut = new uint8_t[buffLen];
uint8_t* buffIn = new uint8_t[buffLen];
#endif
uint8_t* buffOutPtr = buffOut;
// copy the command
// TODO properly handle variable commands and addresses
if(this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR] <= 8) {
*(buffOutPtr++) = reg | cmd;
} else {
*(buffOutPtr++) = (reg >> 8) | cmd;
*(buffOutPtr++) = reg & 0xFF;
}
// copy the data
if(cmd == spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_WRITE]) {
memcpy(buffOutPtr, dataOut, numBytes);
} else {
memset(buffOutPtr, this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_NOP], numBytes);
}
// do the transfer
this->hal->spiBeginTransaction();
this->hal->digitalWrite(this->csPin, this->hal->GpioLevelLow);
this->hal->spiTransfer(buffOut, buffLen, buffIn);
this->hal->digitalWrite(this->csPin, this->hal->GpioLevelHigh);
this->hal->spiEndTransaction();
// copy the data
if(cmd == spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_READ]) {
memcpy(dataIn, &buffIn[this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8], numBytes);
}
// print debug information
#if RADIOLIB_DEBUG_SPI
uint8_t* debugBuffPtr = NULL;
if(cmd == spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_WRITE]) {
RADIOLIB_DEBUG_SPI_PRINT("W\t%X\t", reg);
debugBuffPtr = &buffOut[this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8];
} else if(cmd == spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_READ]) {
RADIOLIB_DEBUG_SPI_PRINT("R\t%X\t", reg);
debugBuffPtr = &buffIn[this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_ADDR]/8];
}
for(size_t n = 0; n < numBytes; n++) {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("%X\t", debugBuffPtr[n]);
}
RADIOLIB_DEBUG_SPI_PRINTLN_NOTAG();
#endif
#if !RADIOLIB_STATIC_ONLY
delete[] buffOut;
delete[] buffIn;
#endif
}
int16_t Module::SPIreadStream(uint16_t cmd, uint8_t* data, size_t numBytes, bool waitForGpio, bool verify) {
uint8_t cmdBuf[2];
uint8_t* cmdPtr = cmdBuf;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = (cmd >> 8*i) & 0xFF;
}
return(this->SPIreadStream(cmdBuf, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8, data, numBytes, waitForGpio, verify));
}
int16_t Module::SPIreadStream(uint8_t* cmd, uint8_t cmdLen, uint8_t* data, size_t numBytes, bool waitForGpio, bool verify) {
// send the command
int16_t state = this->SPItransferStream(cmd, cmdLen, false, NULL, data, numBytes, waitForGpio, RADIOLIB_MODULE_SPI_TIMEOUT);
RADIOLIB_ASSERT(state);
#if !RADIOLIB_SPI_PARANOID
(void)verify;
return(RADIOLIB_ERR_NONE);
#else
// check the status
if(verify && (this->spiConfig.checkStatusCb != nullptr)) {
state = this->spiConfig.checkStatusCb(this);
}
return(state);
#endif
}
int16_t Module::SPIwriteStream(uint16_t cmd, uint8_t* data, size_t numBytes, bool waitForGpio, bool verify) {
uint8_t cmdBuf[2];
uint8_t* cmdPtr = cmdBuf;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = (cmd >> 8*i) & 0xFF;
}
return(this->SPIwriteStream(cmdBuf, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8, data, numBytes, waitForGpio, verify));
}
int16_t Module::SPIwriteStream(uint8_t* cmd, uint8_t cmdLen, uint8_t* data, size_t numBytes, bool waitForGpio, bool verify) {
// send the command
int16_t state = this->SPItransferStream(cmd, cmdLen, true, data, NULL, numBytes, waitForGpio, RADIOLIB_MODULE_SPI_TIMEOUT);
RADIOLIB_ASSERT(state);
#if !RADIOLIB_SPI_PARANOID
(void)verify;
return(RADIOLIB_ERR_NONE);
#else
// check the status
if(verify && (this->spiConfig.checkStatusCb != nullptr)) {
state = this->spiConfig.checkStatusCb(this);
}
return(state);
#endif
}
int16_t Module::SPIcheckStream() {
int16_t state = RADIOLIB_ERR_NONE;
#if RADIOLIB_SPI_PARANOID
// get the status
uint8_t spiStatus = 0;
uint8_t cmdBuf[2];
uint8_t* cmdPtr = cmdBuf;
for(int8_t i = (int8_t)this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8 - 1; i >= 0; i--) {
*(cmdPtr++) = ( this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_STATUS] >> 8*i) & 0xFF;
}
state = this->SPItransferStream(cmdBuf, this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_CMD]/8, false, NULL, &spiStatus, 1, true, RADIOLIB_MODULE_SPI_TIMEOUT);
RADIOLIB_ASSERT(state);
// translate to RadioLib status code
if(this->spiConfig.parseStatusCb != nullptr) {
this->spiConfig.err = this->spiConfig.parseStatusCb(spiStatus);
}
#endif
return(state);
}
int16_t Module::SPItransferStream(const uint8_t* cmd, uint8_t cmdLen, bool write, uint8_t* dataOut, uint8_t* dataIn, size_t numBytes, bool waitForGpio, RadioLibTime_t timeout) {
// prepare the output buffer
size_t buffLen = cmdLen + numBytes;
if(!write) {
buffLen += (this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_STATUS] / 8);
}
#if RADIOLIB_STATIC_ONLY
uint8_t buffOut[RADIOLIB_STATIC_ARRAY_SIZE];
#else
uint8_t* buffOut = new uint8_t[buffLen];
#endif
uint8_t* buffOutPtr = buffOut;
// copy the command
for(uint8_t n = 0; n < cmdLen; n++) {
*(buffOutPtr++) = cmd[n];
}
// copy the data
if(write) {
memcpy(buffOutPtr, dataOut, numBytes);
} else {
memset(buffOutPtr, this->spiConfig.cmds[RADIOLIB_MODULE_SPI_COMMAND_NOP], numBytes + (this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_STATUS] / 8));
}
// ensure GPIO is low
if(this->gpioPin == RADIOLIB_NC) {
this->hal->delay(50);
} else {
RadioLibTime_t start = this->hal->millis();
while(this->hal->digitalRead(this->gpioPin)) {
this->hal->yield();
if(this->hal->millis() - start >= timeout) {
RADIOLIB_DEBUG_BASIC_PRINTLN("GPIO pre-transfer timeout, is it connected?");
#if !RADIOLIB_STATIC_ONLY
delete[] buffOut;
#endif
return(RADIOLIB_ERR_SPI_CMD_TIMEOUT);
}
}
}
// prepare the input buffer
#if RADIOLIB_STATIC_ONLY
uint8_t buffIn[RADIOLIB_STATIC_ARRAY_SIZE];
#else
uint8_t* buffIn = new uint8_t[buffLen];
#endif
// do the transfer
this->hal->spiBeginTransaction();
this->hal->digitalWrite(this->csPin, this->hal->GpioLevelLow);
this->hal->spiTransfer(buffOut, buffLen, buffIn);
this->hal->digitalWrite(this->csPin, this->hal->GpioLevelHigh);
this->hal->spiEndTransaction();
// wait for GPIO to go high and then low
if(waitForGpio) {
if(this->gpioPin == RADIOLIB_NC) {
this->hal->delay(1);
} else {
this->hal->delayMicroseconds(1);
RadioLibTime_t start = this->hal->millis();
while(this->hal->digitalRead(this->gpioPin)) {
this->hal->yield();
if(this->hal->millis() - start >= timeout) {
RADIOLIB_DEBUG_BASIC_PRINTLN("GPIO post-transfer timeout, is it connected?");
#if !RADIOLIB_STATIC_ONLY
delete[] buffOut;
delete[] buffIn;
#endif
return(RADIOLIB_ERR_SPI_CMD_TIMEOUT);
}
}
}
}
// parse status
int16_t state = RADIOLIB_ERR_NONE;
if((this->spiConfig.parseStatusCb != nullptr) && (numBytes > 0)) {
state = this->spiConfig.parseStatusCb(buffIn[this->spiConfig.statusPos]);
}
// copy the data
if(!write) {
// skip the status bytes if present
memcpy(dataIn, &buffIn[cmdLen + (this->spiConfig.widths[RADIOLIB_MODULE_SPI_WIDTH_STATUS] / 8)], numBytes);
}
// print debug information
#if RADIOLIB_DEBUG_SPI
// print command byte(s)
RADIOLIB_DEBUG_SPI_PRINT("CMD");
if(write) {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("W\t");
} else {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("R\t");
}
size_t n = 0;
for(; n < cmdLen; n++) {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("%X\t", cmd[n]);
}
RADIOLIB_DEBUG_SPI_PRINTLN_NOTAG();
// print data bytes
RADIOLIB_DEBUG_SPI_PRINT("SI\t");
for(n = 0; n < cmdLen; n++) {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("\t");
}
for(; n < buffLen; n++) {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("%X\t", buffOut[n]);
}
RADIOLIB_DEBUG_SPI_PRINTLN_NOTAG();
RADIOLIB_DEBUG_SPI_PRINT("SO\t");
for(n = 0; n < buffLen; n++) {
RADIOLIB_DEBUG_SPI_PRINT_NOTAG("%X\t", buffIn[n]);
}
RADIOLIB_DEBUG_SPI_PRINTLN_NOTAG();
#endif
#if !RADIOLIB_STATIC_ONLY
delete[] buffOut;
delete[] buffIn;
#endif
return(state);
}
void Module::waitForMicroseconds(RadioLibTime_t start, RadioLibTime_t len) {
#if RADIOLIB_INTERRUPT_TIMING
(void)start;
if((this->TimerSetupCb != nullptr) && (len != this->prevTimingLen)) {
prevTimingLen = len;
this->TimerSetupCb(len);
}
this->TimerFlag = false;
while(!this->TimerFlag) {
this->hal->yield();
}
#else
while(this->hal->micros() - start < len) {
this->hal->yield();
}
#endif
}
uint32_t Module::reflect(uint32_t in, uint8_t bits) {
uint32_t res = 0;
for(uint8_t i = 0; i < bits; i++) {
res |= (((in & ((uint32_t)1 << i)) >> i) << (bits - i - 1));
}
return(res);
}
#if RADIOLIB_DEBUG
void Module::hexdump(const char* level, uint8_t* data, size_t len, uint32_t offset, uint8_t width, bool be) {
size_t rem_len = len;
for(size_t i = 0; i < len; i+=16) {
char str[120];
sprintf(str, "%07" PRIx32 " ", (uint32_t)i+offset);
size_t line_len = 16;
if(rem_len < line_len) {
line_len = rem_len;
}
for(size_t j = 0; j < line_len; j+=width) {
if(width > 1) {
int m = 0;
int step = width/2;
if(be) {
step *= -1;
}
for(int32_t k = width - 1; k >= -width + 1; k+=step) {
sprintf(&str[8 + (j+m)*3], "%02x ", data[i+j+k+m]);
m++;
}
} else {
sprintf(&str[8 + (j)*3], "%02x ", data[i+j]);
}
}
for(size_t j = line_len; j < 16; j++) {
sprintf(&str[8 + j*3], " ");
}
str[56] = '|';
str[57] = ' ';
// at this point we need to start escaping "%" characters
char* strPtr = &str[58];
for(size_t j = 0; j < line_len; j++) {
char c = data[i+j];
if((c < ' ') || (c > '~')) {
c = '.';
} else if(c == '%') {
*strPtr++ = '%';
}
sprintf(strPtr++, "%c", c);
}
for(size_t j = line_len; j < 16; j++) {
sprintf(strPtr++, " ");
}
if(level) {
RADIOLIB_DEBUG_PRINT(level);
}
RADIOLIB_DEBUG_PRINT(str);
RADIOLIB_DEBUG_PRINTLN();
rem_len -= 16;
}
}
void Module::regdump(const char* level, uint16_t start, size_t len) {
#if RADIOLIB_STATIC_ONLY
uint8_t buff[RADIOLIB_STATIC_ARRAY_SIZE];
#else
uint8_t* buff = new uint8_t[len];
#endif
SPIreadRegisterBurst(start, len, buff);
hexdump(level, buff, len, start);
#if !RADIOLIB_STATIC_ONLY
delete[] buff;
#endif
}
#endif
#if RADIOLIB_DEBUG && defined(RADIOLIB_BUILD_ARDUINO)
// https://github.com/esp8266/Arduino/blob/65579d29081cb8501e4d7f786747bf12e7b37da2/cores/esp8266/Print.cpp#L50
size_t Module::serialPrintf(const char* format, ...) {
va_list arg;
va_start(arg, format);
char temp[64];
char* buffer = temp;
size_t len = vsnprintf(temp, sizeof(temp), format, arg);
va_end(arg);
if (len > sizeof(temp) - 1) {
buffer = new char[len + 1];
if (!buffer) {
return 0;
}
va_start(arg, format);
vsnprintf(buffer, len + 1, format, arg);
va_end(arg);
}
len = RADIOLIB_DEBUG_PORT.write(reinterpret_cast<const uint8_t*>(buffer), len);
if (buffer != temp) {
delete[] buffer;
}
return len;
}
#endif
void Module::setRfSwitchPins(uint32_t rxEn, uint32_t txEn) {
// This can be on the stack, setRfSwitchTable copies the contents
const uint32_t pins[] = {
rxEn, txEn, RADIOLIB_NC,
};
// This must be static, since setRfSwitchTable stores a reference.
static const RfSwitchMode_t table[] = {
{ MODE_IDLE, {this->hal->GpioLevelLow, this->hal->GpioLevelLow} },
{ MODE_RX, {this->hal->GpioLevelHigh, this->hal->GpioLevelLow} },
{ MODE_TX, {this->hal->GpioLevelLow, this->hal->GpioLevelHigh} },
END_OF_MODE_TABLE,
};
setRfSwitchTable(pins, table);
}
void Module::setRfSwitchTable(const uint32_t (&pins)[3], const RfSwitchMode_t table[]) {
memcpy(this->rfSwitchPins, pins, sizeof(this->rfSwitchPins));
this->rfSwitchTable = table;
for(size_t i = 0; i < RFSWITCH_MAX_PINS; i++)
this->hal->pinMode(pins[i], this->hal->GpioModeOutput);
}
const Module::RfSwitchMode_t *Module::findRfSwitchMode(uint8_t mode) const {
const RfSwitchMode_t *row = this->rfSwitchTable;
while (row && row->mode != MODE_END_OF_TABLE) {
if (row->mode == mode)
return row;
++row;
}
return nullptr;
}
void Module::setRfSwitchState(uint8_t mode) {
const RfSwitchMode_t *row = findRfSwitchMode(mode);
if(!row) {
// RF switch control is disabled or does not have this mode
return;
}
// set pins
const uint32_t *value = &row->values[0];
for(size_t i = 0; i < RFSWITCH_MAX_PINS; i++) {
uint32_t pin = this->rfSwitchPins[i];
if (pin != RADIOLIB_NC)
this->hal->digitalWrite(pin, *value);
++value;
}
}
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