* Copyright (c) 2025 Huawei Technologies Co., Ltd.
* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
* CANN Open Software License Agreement Version 2.0 (the "License").
* Please refer to the License for details. You may not use this file except in compliance with the License.
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
* See LICENSE in the root of the software repository for the full text of the License.
*/
#include "driver.hpp"
#include "npu_driver.hpp"
#include "errcode_manage.hpp"
namespace cce {
namespace runtime {
static DriverGetInsFunc_t g_getInsFuncs[MAX_DRIVER_NUM];
DriverFactory::DriverFactory()
{
for (int32_t i = 0; i < static_cast<int32_t>(MAX_DRIVER_NUM); i++) {
drivers_[i] = nullptr;
}
}
DriverFactory::~DriverFactory()
{
for (int32_t i = 0; i < static_cast<int32_t>(MAX_DRIVER_NUM); i++) {
if (drivers_[i] != nullptr) {
delete drivers_[i].load();
drivers_[i] = nullptr;
}
}
}
Driver* DriverFactory::GetDriver(const driverType_t type)
{
if (drivers_[type] == nullptr) {
const std::unique_lock<std::mutex> mutexLock(m);
if (drivers_[type] == nullptr) {
drivers_[type] = g_getInsFuncs[type]();
}
}
return drivers_[type];
}
Driver* DriverFactory::GetDriverIfCreated(const driverType_t type) const
{
const int32_t typeValue = static_cast<int32_t>(type);
if ((typeValue < 0) || (typeValue >= static_cast<int32_t>(MAX_DRIVER_NUM))) {
RT_LOG(
RT_LOG_ERROR, "driver type is invalid, type=UNKNOWN(%d), max=%d.", typeValue,
static_cast<int32_t>(MAX_DRIVER_NUM));
return nullptr;
}
return drivers_[type].load();
}
bool DriverFactory::RegDriver(const driverType_t type, DriverGetInsFunc_t const func)
{
if (func == nullptr) {
return false;
}
g_getInsFuncs[type] = func;
return true;
}
Driver::Driver() : NoCopy(), callBack_(nullptr) {}
Driver::~Driver() { callBack_ = nullptr; }
rtError_t FacadeDriver::GetDeviceCount(int32_t* const deviceCount) const
{
rtError_t error = RT_ERROR_NONE;
uint32_t devCnt = 0U;
const drvError_t drvRet = drvGetDevNum(&devCnt);
if (drvRet != DRV_ERROR_NONE) {
DRV_ERROR_PROCESS(drvRet, "Call driver api drvGetDevNum failed, drvRetCode=%d.", static_cast<int32_t>(drvRet));
error = RT_GET_DRV_ERRCODE(drvRet);
}
*deviceCount = static_cast<int32_t>(devCnt);
return error;
}
rtError_t FacadeDriver::GetDeviceIDs(uint32_t* const devices, const uint32_t len) const
{
rtError_t error = RT_ERROR_NONE;
const drvError_t drvRet = drvGetDevIDs(devices, len);
if (drvRet != DRV_ERROR_NONE) {
DRV_ERROR_PROCESS(
drvRet, "Call driver api drvGetDevIDs failed, drvRetCode=%d, length=%u.", static_cast<int32_t>(drvRet),
len);
error = RT_GET_DRV_ERRCODE(drvRet);
}
return error;
}
}
}
