kernel_liteos_a/kernel/common/los_exc_interaction.c

134 lines
4.0 KiB
C

/*
* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "los_exc_interaction_pri.h"
#ifdef LOSCFG_EXC_INTERACTION
#include "los_task_pri.h"
#ifdef LOSCFG_SHELL
#include "shell.h"
#include "shell_pri.h"
#endif
#include "console.h"
#include "hisoc/uart.h"
#include "hal_hwi.h"
/* Inter-module variable and function */
extern CONSOLE_CB *g_console[];
#define IS_UARTSHELL_ID(taskID) (((taskID) == shellCB->shellTaskHandle) || \
((taskID) == shellCB->shellEntryHandle))
STATIC BOOL IsIdleTask(UINT32 taskID)
{
UINT32 i;
for (i = 0; i < LOSCFG_KERNEL_CORE_NUM; i++) {
if (taskID == g_percpu[i].idleTaskID) {
return TRUE;
}
}
return FALSE;
}
STATIC BOOL IsSwtTask(UINT32 taskID)
{
UINT32 i;
for (i = 0; i < LOSCFG_KERNEL_CORE_NUM; i++) {
if (taskID == g_percpu[i].swtmrTaskID) {
return TRUE;
}
}
return FALSE;
}
UINT32 OsExcInteractionTaskCheck(const TSK_INIT_PARAM_S *initParam)
{
if (initParam->pfnTaskEntry == (TSK_ENTRY_FUNC)OsIdleTask) {
return LOS_OK;
}
if ((initParam->pfnTaskEntry == (TSK_ENTRY_FUNC)ShellTask) ||
(initParam->pfnTaskEntry == (TSK_ENTRY_FUNC)ShellEntry)) {
return LOS_OK;
}
return LOS_NOK;
}
VOID OsExcInteractionTaskKeep(VOID)
{
LosTaskCB *taskCB = NULL;
UINT32 taskID;
UINT32 curIrqNum;
ShellCB *shellCB = NULL;
CONSOLE_CB *consoleCB = NULL;
consoleCB = g_console[CONSOLE_SERIAL - 1];
if (consoleCB == NULL) {
PRINTK("Serial Shell Uninitialized\n");
return;
}
shellCB = (ShellCB *)(consoleCB->shellHandle);
g_intCount[ArchCurrCpuid()] = 0;
for (taskID = 0; taskID < g_taskMaxNum; taskID++) {
if (taskID == OsCurrTaskGet()->taskID) {
continue;
} else if ((IsIdleTask(taskID) == TRUE) || IS_UARTSHELL_ID(taskID)) {
continue;
}
taskCB = OS_TCB_FROM_TID(taskID);
if (OsTaskIsUnused(taskCB)) {
continue;
}
if (IsSwtTask(taskID) == TRUE) {
taskCB->taskStatus &= (~OS_TASK_FLAG_SYSTEM_TASK);
}
(VOID)LOS_TaskDelete(taskID);
}
HalIrqInit();
HalIrqUnmask(NUM_HAL_INTERRUPT_UART);
curIrqNum = HalCurIrqGet();
HalIrqClear(curIrqNum);
(VOID)LOS_TaskDelete(OsCurrTaskGet()->taskID);
/* unreachable */
}
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif