1 /* 2 * Copyright (c) 2009-2022 Huawei Technologies Co., Ltd. All rights reserved. 3 * 4 * UniProton is licensed under Mulan PSL v2. 5 * You can use this software according to the terms and conditions of the Mulan PSL v2. 6 * You may obtain a copy of Mulan PSL v2 at: 7 * http://license.coscl.org.cn/MulanPSL2 8 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, 9 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, 10 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. 11 * See the Mulan PSL v2 for more details. 12 * Create: 2009-12-22 13 * Description: System base function implementation 14 */ 15 #include "prt_idle.h" 16 #include "prt_sys_external.h" 17 #include "prt_kexc_external.h" 18 #include "prt_hook_external.h" 19 20 /* 系统主频 */ 21 OS_SEC_BSS U32 g_systemClock; 22 23 /* cpup */ 24 OS_SEC_BSS TickEntryFunc g_tickTaskEntry; 25 26 OS_SEC_BSS TickDispFunc g_tickDispatcher; 27 /* tick中软件定时器扫描钩子 */ 28 OS_SEC_BSS TaskScanFunc g_taskScanHook; 29 OS_SEC_BSS struct TickModInfo g_tickModInfo; 30 31 OS_SEC_L4_BSS U32 g_threadNum; 32 /* Tick计数 */ 33 OS_SEC_BSS U64 g_uniTicks; 34 35 /* 系统状态标志位 */ 36 OS_SEC_DATA U32 g_uniFlag = 0; 37 OS_SEC_BSS U32 g_tickNoRespondCnt; 38 OS_SEC_DATA struct TagTskCb *g_runningTask = NULL; 39 OsCurThreadTypeNoIntLock(void)40OS_SEC_ALW_INLINE INLINE enum SysThreadType OsCurThreadTypeNoIntLock(void) 41 { 42 U32 uniFlag = UNI_FLAG; 43 44 if (LIKELY(OS_SYS_TASK_STATUS(uniFlag))) { 45 return SYS_TASK; 46 } else if (OS_SYS_HWI_STATUS(uniFlag)) { 47 return SYS_HWI; 48 } 49 50 return SYS_KERNEL; // 异常、tick、sys、初始化 51 } 52 53 /* 54 * 描述：获取系统当前线程类型。 55 */ OsCurThreadType(void)56OS_SEC_TEXT enum SysThreadType OsCurThreadType(void) 57 { 58 enum SysThreadType type; 59 uintptr_t intSave = OsIntLock(); 60 61 /* 异常模块打开而且目前系统有异常产生 */ 62 if (CUR_NEST_COUNT > 0) { 63 OsIntRestore(intSave); 64 return SYS_KERNEL; 65 } 66 67 type = OsCurThreadTypeNoIntLock(); 68 69 OsIntRestore(intSave); 70 return type; 71 } 72 PRT_IdleAddHook(IdleHook hook)73OS_SEC_L4_TEXT U32 PRT_IdleAddHook(IdleHook hook) 74 { 75 return OsHookAdd(OS_HOOK_IDLE_PERIOD, (OsVoidFunc)hook); 76 } PRT_IdleDelHook(IdleHook hook)77OS_SEC_L4_TEXT U32 PRT_IdleDelHook(IdleHook hook) 78 { 79 return OsHookDel(OS_HOOK_IDLE_PERIOD, (OsVoidFunc)hook); 80 }