Pcal95555Handler.cpp File Reference

Implementation of the PCAL95555 GPIO expander handler. More...

#include "Pcal95555Handler.h"
#include "handlers/logger/Logger.h"
#include <cstring>

Classes
struct	anonymous_namespace{Pcal95555Handler.cpp}::NonOwningGpioDeleter

Namespaces
namespace	anonymous_namespace{Pcal95555Handler.cpp}

Functions
void	anonymous_namespace{Pcal95555Handler.cpp}::SyncDeviceAddress (BaseI2c &i2c, uint8_t addr) noexcept
std::shared_ptr< BaseGpio >	anonymous_namespace{Pcal95555Handler.cpp}::ShareNonOwning (Pcal95555GpioPin *pin) noexcept

Variables
volatile uint8_t	anonymous_namespace{Pcal95555Handler.cpp}::g_pcal_handler_init_stage {0}
volatile uint8_t	anonymous_namespace{Pcal95555Handler.cpp}::g_pcal_last_i2c_cmd {0}

Detailed Description

Implementation of the PCAL95555 GPIO expander handler.

Implements all three layers defined in Pcal95555Handler.h:

1. HalI2cPcal95555Comm – CRTP I2C communication adapter
2. Pcal95555Handler – Main handler (init, GPIO ops, interrupts, factory)
3. Pcal95555GpioPin – Per-pin BaseGpio wrapper

All driver calls use the PascalCase API of the updated hf-pcal95555-driver (pcal95555::PCAL95555<I2cType>). Error handling follows the driver's error-flag model: individual methods return bool, with accumulated error flags available via GetErrorFlags().

See also

Pcal95555Handler.h for architectural overview and Doxygen documentation.

Author

HardFOC Team

Date

2025