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common.cpp
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common.cpp
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/*----------------------------------------------------------------------------/
Lovyan GFX - Graphics library for embedded devices.
Original Source:
https://github.com/lovyan03/LovyanGFX/
Licence:
[FreeBSD](https://github.com/lovyan03/LovyanGFX/blob/master/license.txt)
Author:
[lovyan03](https://twitter.com/lovyan03)
Contributors:
[ciniml](https://github.com/ciniml)
[mongonta0716](https://github.com/mongonta0716)
[tobozo](https://github.com/tobozo)
/----------------------------------------------------------------------------*/
#if defined (ESP_PLATFORM)
#elif defined (ESP8266)
#elif defined (__SAMD21__) || defined(__SAMD21G18A__) || defined(__SAMD21J18A__) || defined(__SAMD21E17A__) || defined(__SAMD21E18A__)
#elif defined (__SAMD51__)
#elif defined (STM32F2xx) || defined (STM32F4xx) || defined (STM32F7xx)
#elif defined (ARDUINO_ARCH_SPRESENSE)
#elif defined (ARDUINO_ARCH_MBED_RP2040) || defined(ARDUINO_ARCH_RP2040)
#elif defined (ARDUINO)
#include "common.hpp"
namespace lgfx
{
inline namespace v1
{
//----------------------------------------------------------------------------
void pinMode(int_fast16_t pin, pin_mode_t mode)
{
switch (mode)
{
case pin_mode_t::output:
::pinMode(pin, OUTPUT);
break;
#if defined (INPUT_PULLUP)
case pin_mode_t::input_pullup:
::pinMode(pin, INPUT_PULLUP);
break;
#endif
#if defined (INPUT_PULLDOWN)
case pin_mode_t::input_pulldown:
::pinMode(pin, INPUT_PULLDOWN);
break;
#endif
#if defined (INPUT_PULLDOWN_16)
case pin_mode_t::input_pulldown:
::pinMode(pin, INPUT_PULLDOWN_16);
break;
#endif
default:
::pinMode(pin, INPUT);
break;
}
}
//----------------------------------------------------------------------------
/// unimplemented.
namespace spi
{
HardwareSPI *spi;
cpp::result<void, error_t> init(int spi_host, int spi_sclk, int spi_miso, int spi_mosi) {
cpp::result<void, error_t> res = {};
spi = new HardwareSPI(spi_host);
spi->begin();
return res; }
void release(int spi_host) {}
void beginTransaction(int spi_host, uint32_t freq, int spi_mode) {
SPISettings setting(freq, MSBFIRST, SPI_MODE0);
spi->beginTransaction(setting);
}
void endTransaction(int spi_host) {spi->endTransaction();}
void writeBytes(int spi_host, const uint8_t* data, size_t length) {}
void readBytes(int spi_host, uint8_t* data, size_t length) {spi->transfer(data, length);} }
//----------------------------------------------------------------------------
namespace i2c
{
#ifdef TwoWire_h
cpp::result<void, error_t> init(int i2c_port, int pin_sda, int pin_scl) { Wire.begin(); return {};}
cpp::result<void, error_t> release(int i2c_port) { Wire.end(); return {};}
cpp::result<void, error_t> restart(int i2c_port, int i2c_addr, uint32_t freq, bool read) { Wire.endTransmission(true); Wire.beginTransmission(i2c_addr); return {};}
cpp::result<void, error_t> beginTransaction(int i2c_port, int i2c_addr, uint32_t freq, bool read) { Wire.beginTransmission(i2c_addr); return {};}
cpp::result<void, error_t> endTransaction(int i2c_port) { Wire.endTransmission(true); return {};}
cpp::result<void, error_t> writeBytes(int i2c_port, const uint8_t *data, size_t length) { Wire.write(data, length); return {};}
cpp::result<void, error_t> readBytes(int i2c_port, uint8_t *data, size_t length)
{
Wire.readBytes((char *)data, (size_t)length);
/*
printf("0x");
for (int i=0; i< length; i++) {
printf("%02x ", data[i]);
}
printf("\n");
*/
return {};
}
cpp::result<void, error_t> readBytes(int i2c_port, uint8_t *data, size_t length, bool last_nack)
{
Wire.readBytes((char *)data, (size_t)length);
/*
printf("0x");
for (int i=0; i< length; i++) {
printf("%02x ", data[i]);
}
printf("\n");
*/
return {};
}
cpp::result<void, error_t> transactionWrite(int i2c_port, int addr, const uint8_t *writedata, uint8_t writelen, uint32_t freq) {
cpp::result<void, error_t> res;
if ((res = beginTransaction(i2c_port, addr, freq, false)).has_value() && (res = writeBytes(i2c_port, writedata, writelen)).has_value())
{
res = endTransaction(i2c_port);
}
return res;
}
cpp::result<void, error_t> transactionRead(int i2c_port, int addr, uint8_t *readdata, uint8_t readlen, uint32_t freq) {
cpp::result<void, error_t> res;
if ((res = beginTransaction(i2c_port, addr, freq, false)).has_value() && (res = readBytes(i2c_port, readdata, readlen)).has_value())
{
res = endTransaction(i2c_port);
}
return res;
}
cpp::result<void, error_t> transactionWriteRead(int i2c_port, int addr, const uint8_t *writedata, uint8_t writelen, uint8_t *readdata, size_t readlen, uint32_t freq) {
cpp::result<void, error_t> res;
if ((res = beginTransaction(i2c_port, addr, freq, false)).has_value() && (res = writeBytes(i2c_port, writedata, writelen)).has_value() &&
(res = restart(i2c_port, addr, freq, false)).has_value() && (res = readBytes(i2c_port, readdata, readlen)).has_value())
{
res = endTransaction(i2c_port);
}
return res;
}
cpp::result<uint8_t, error_t> readRegister8(int i2c_port, int addr, uint8_t reg, uint32_t freq) {
auto res = transactionWriteRead(i2c_port, addr, ®, 1, ®, 1, freq);
if (res.has_value())
{
return reg;
}
return cpp::fail(res.error());
}
cpp::result<void, error_t> writeRegister8(int i2c_port, int addr, uint8_t reg, uint8_t data, uint8_t mask, uint32_t freq) {
uint8_t tmp[2] = {reg, data};
if (mask != 0)
{
auto res = transactionWriteRead(i2c_port, addr, ®, 1, &tmp[1], 1, freq);
if (res.has_error())
{
return res;
}
tmp[1] = (tmp[1] & mask) | data;
}
return transactionWrite(i2c_port, addr, tmp, 2, freq);
}
#else
cpp::result<void, error_t> init(int i2c_port, int pin_sda, int pin_scl) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> release(int i2c_port) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> restart(int i2c_port, int i2c_addr, uint32_t freq, bool read) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> beginTransaction(int i2c_port, int i2c_addr, uint32_t freq, bool read) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> endTransaction(int i2c_port) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> writeBytes(int i2c_port, const uint8_t *data, size_t length) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> readBytes(int i2c_port, uint8_t *data, size_t length) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> readBytes(int i2c_port, uint8_t *data, size_t length, bool last_nack) { return cpp::fail(error_t::unknown_err); }
//--------
cpp::result<void, error_t> transactionWrite(int i2c_port, int addr, const uint8_t *writedata, uint8_t writelen, uint32_t freq) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> transactionRead(int i2c_port, int addr, uint8_t *readdata, uint8_t readlen, uint32_t freq) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> transactionWriteRead(int i2c_port, int addr, const uint8_t *writedata, uint8_t writelen, uint8_t *readdata, size_t readlen, uint32_t freq) { return cpp::fail(error_t::unknown_err); }
cpp::result<uint8_t, error_t> readRegister8(int i2c_port, int addr, uint8_t reg, uint32_t freq) { return cpp::fail(error_t::unknown_err); }
cpp::result<void, error_t> writeRegister8(int i2c_port, int addr, uint8_t reg, uint8_t data, uint8_t mask, uint32_t freq) { return cpp::fail(error_t::unknown_err); }
#endif
}
//----------------------------------------------------------------------------
}
}
#endif