host_api_usb.cpp

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#include "plugin_manager/host_api.h"
#include "plugin_manager/Plugin.h"
#include "usb_badge/usb_cdc.h"
 
extern "C" void* plg_get_active_plugin(void);
 
namespace {
bool allowed() {
    auto* p = static_cast<cdc::plugin_manager::Plugin*>(plg_get_active_plugin());
    return p && p->manifest().capabilities.usb_cdc;
}
}  // namespace
 
extern "C" {
 
int host_usb_cdc_write(const uint8_t* data, size_t len)
{
    if (!data && len) return HOST_ERR_INVALID_ARG;
    if (!allowed()) return HOST_ERR_NO_CAPABILITY;
    if (len == 0) return HOST_OK;
    size_t written = usb_cdc_write(data, len);
    return written == len ? HOST_OK : HOST_ERR_GENERIC;
}
 
}  // extern "C"