// Copyright (c) FIRST and other WPILib contributors. // Open Source Software; you can modify and/or share it under the terms of // the WPILib BSD license file in the root directory of this project. #include "wpi/hal/CAN.h" #include "wpi/hardware/bus/CAN.hpp" #include #include "wpi/hal/CANAPI.h" #include "wpi/hal/Errors.h" #include "wpi/hal/UsageReporting.h" #include "wpi/system/Errors.hpp" using namespace wpi; CAN::CAN(int busId, int deviceId) : CAN{busId, deviceId, kTeamManufacturer, kTeamDeviceType} {} CAN::CAN(int busId, int deviceId, int deviceManufacturer, int deviceType) { int32_t status = 0; m_handle = HAL_InitializeCAN( busId, static_cast(deviceManufacturer), deviceId, static_cast(deviceType), &status); WPILIB_CheckErrorStatus(status, "device id {} mfg {} type {}", deviceId, deviceManufacturer, deviceType); HAL_ReportUsage( fmt::format("CAN[{}][{}][{}]", deviceType, deviceManufacturer, deviceId), ""); } void CAN::WritePacket(int apiId, const HAL_CANMessage& message) { int32_t status = 0; HAL_WriteCANPacket(m_handle, apiId, &message, &status); WPILIB_CheckErrorStatus(status, "WritePacket"); } void CAN::WritePacketRepeating(int apiId, const HAL_CANMessage& message, int repeatMs) { int32_t status = 0; HAL_WriteCANPacketRepeating(m_handle, apiId, &message, repeatMs, &status); WPILIB_CheckErrorStatus(status, "WritePacketRepeating"); } void CAN::WriteRTRFrame(int apiId, const HAL_CANMessage& message) { int32_t status = 0; HAL_WriteCANRTRFrame(m_handle, apiId, &message, &status); WPILIB_CheckErrorStatus(status, "WriteRTRFrame"); } int CAN::WritePacketNoError(int apiId, const HAL_CANMessage& message) { int32_t status = 0; HAL_WriteCANPacket(m_handle, apiId, &message, &status); return status; } int CAN::WritePacketRepeatingNoError(int apiId, const HAL_CANMessage& message, int repeatMs) { int32_t status = 0; HAL_WriteCANPacketRepeating(m_handle, apiId, &message, repeatMs, &status); return status; } int CAN::WriteRTRFrameNoError(int apiId, const HAL_CANMessage& message) { int32_t status = 0; HAL_WriteCANRTRFrame(m_handle, apiId, &message, &status); return status; } void CAN::StopPacketRepeating(int apiId) { int32_t status = 0; HAL_StopCANPacketRepeating(m_handle, apiId, &status); WPILIB_CheckErrorStatus(status, "StopPacketRepeating"); } bool CAN::ReadPacketNew(int apiId, HAL_CANReceiveMessage* data) { int32_t status = 0; HAL_ReadCANPacketNew(m_handle, apiId, data, &status); if (status == HAL_ERR_CANSessionMux_MessageNotFound) { return false; } if (status != 0) { WPILIB_CheckErrorStatus(status, "ReadPacketNew"); return false; } else { return true; } } bool CAN::ReadPacketLatest(int apiId, HAL_CANReceiveMessage* data) { int32_t status = 0; HAL_ReadCANPacketLatest(m_handle, apiId, data, &status); if (status == HAL_ERR_CANSessionMux_MessageNotFound) { return false; } if (status != 0) { WPILIB_CheckErrorStatus(status, "ReadPacketLatest"); return false; } else { return true; } } bool CAN::ReadPacketTimeout(int apiId, int timeoutMs, HAL_CANReceiveMessage* data) { int32_t status = 0; HAL_ReadCANPacketTimeout(m_handle, apiId, data, timeoutMs, &status); if (status == HAL_CAN_TIMEOUT || status == HAL_ERR_CANSessionMux_MessageNotFound) { return false; } if (status != 0) { WPILIB_CheckErrorStatus(status, "ReadPacketTimeout"); return false; } else { return true; } }