1 /*
2 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "los_task.h"
32 #include "securec.h"
33 #include "los_config.h"
34 #include "los_debug.h"
35 #include "los_hook.h"
36 #include "los_interrupt.h"
37 #include "los_memory.h"
38 #include "los_mpu.h"
39 #include "los_sched.h"
40 #include "los_mux.h"
41 #include "los_sem.h"
42 #include "los_timer.h"
43 #include "los_arch_context.h"
44 #include "los_box.h"
45 #include "los_syscall.h"
46
SysUserTaskCreate(unsigned long entry,unsigned long userArea,unsigned long userSp,BOOL joinable)47 int SysUserTaskCreate(unsigned long entry, unsigned long userArea, unsigned long userSp, BOOL joinable)
48 {
49 UINT32 ret, taskID;
50 TSK_INIT_PARAM_S taskInitParam = { 0 };
51 taskInitParam.pfnTaskEntry = (TSK_ENTRY_FUNC)entry;
52 taskInitParam.uwStackSize = 0x1000;
53 taskInitParam.pcName = "UserTask";
54 taskInitParam.usTaskPrio = OS_TASK_PRIORITY_LOWEST;
55 taskInitParam.stackAddr = userSp;
56 if (joinable) {
57 taskInitParam.uwResved |= LOS_TASK_ATTR_JOINABLE;
58 }
59 ret = LOS_TaskCreateOnly(&taskID, &taskInitParam);
60 if (ret != LOS_OK) {
61 return -EINVAL;
62 }
63
64 OsUserTaskInit(taskID, entry, userArea, userSp);
65 return taskID;
66 }
67
SysSchedSetScheduler(unsigned int tid,int policy,int priority)68 int SysSchedSetScheduler(unsigned int tid, int policy, int priority)
69 {
70 if ((tid == 0) || (tid > LOSCFG_BASE_CORE_TSK_LIMIT)) {
71 return EINVAL;
72 }
73
74 if (policy != 0) {
75 return EINVAL;
76 }
77
78 if ((priority <= 0) || (priority > OS_TASK_PRIORITY_LOWEST)) {
79 return EINVAL;
80 }
81
82 UINT32 ret = LOS_TaskPriSet((UINT32)tid, (UINT16)priority);
83 if (ret != LOS_OK) {
84 return EINVAL;
85 }
86
87 return 0;
88 }
89
SysSchedGetArea(unsigned int tid)90 int *SysSchedGetArea(unsigned int tid)
91 {
92 unsigned int intSave;
93 int *area = NULL;
94
95 if ((tid == 0) || (tid > LOSCFG_BASE_CORE_TSK_LIMIT)) {
96 return NULL;
97 }
98
99 intSave = LOS_IntLock();
100 area = (int *)OsGetUserTaskCB(tid)->userArea;
101 LOS_IntRestore(intSave);
102 return area;
103 }
104
SysSetThreadArea(const char * area)105 int SysSetThreadArea(const char *area)
106 {
107 unsigned int intSave;
108
109 intSave = LOS_IntLock();
110 LosTaskCB *runTask = g_losTask.runTask;
111 OsGetUserTaskCB(runTask->taskID)->userArea = (unsigned long)(uintptr_t)area;
112 LOS_IntRestore(intSave);
113 return 0;
114 }
115
SysGetThreadArea(void)116 char *SysGetThreadArea(void)
117 {
118 unsigned int intSave;
119 char *area = NULL;
120
121 intSave = LOS_IntLock();
122 LosTaskCB *runTask = g_losTask.runTask;
123 area = (char *)OsGetUserTaskCB(runTask->taskID)->userArea;
124 LOS_IntRestore(intSave);
125 return area;
126 }
127