WutLoggerUsbSerial.cpp

/****************************************************************************
 * Platform Abstraction Layer
 * Daryl Borth 2026
 * WutLoggerUsbSerial.cpp
 ***************************************************************************/
#include "WutLoggerUsbSerial.h"
 
#if WUT_USBSERIAL_AVAILABLE
 
#include <usbserial/usbserial.h>
 
// The module's Init() doesn't take a baud rate/port selector - it claims
// whichever supported USB-to-TTL adapter is plugged in and runs it at a
// fixed rate the module itself defines. LogConfig::serialBaudRate is kept
// for backends against modules/adapters that do accept one; it's simply
// unused here.
bool WutLoggerUsbSerial::init(const LogConfig & /*config*/)
{
    ready = USBSerial_Init();
    return ready;
}
 
void WutLoggerUsbSerial::shutdown()
{
    if (ready)
    {
        USBSerial_Deinit();
        ready = false;
    }
}
 
void WutLoggerUsbSerial::write(LogLevel /*level*/, const char * line, size_t len)
{
    if (!ready)
        return;
 
    // USBSerial_Write() is documented as non-blocking - a full transfer
    // ring simply drops the write rather than stalling the caller.
    USBSerial_Write(line, static_cast<uint32_t>(len));
}
 
#else // !WUT_USBSERIAL_AVAILABLE
 
bool WutLoggerUsbSerial::init(const LogConfig & /*config*/) { return false; }
void WutLoggerUsbSerial::shutdown() { }
void WutLoggerUsbSerial::write(LogLevel /*level*/, const char * /*line*/, size_t /*len*/) { }
 
#endif