原始版本

This commit is contained in:
冯佳
2025-06-19 21:56:46 +08:00
parent fe98e5f010
commit a4841450cf
4152 changed files with 1910684 additions and 0 deletions

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# RT-Thread building script for component
from building import *
Import('rtconfig')
cwd = GetCurrentDir()
src = Glob('*.c') + Glob('*.cpp')
CPPPATH = [cwd]
group = DefineGroup('libcpu', src, depend = [''], CPPPATH = CPPPATH)
Return('group')

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/*
************************************************************************************************************************
* File : cpu_port.c
* By : xyou
* Version : V1.00.00
*
* By : prife
* Version : V1.00.01
************************************************************************************************************************
*/
/*
*********************************************************************************************************
* INCLUDE FILES
*********************************************************************************************************
*/
#include <rtthread.h>
#include <windows.h>
#include <mmsystem.h>
#include <stdio.h>
#include "cpu_port.h"
/*
*********************************************************************************************************
* WinThread STRUCTURE
* Windows runs each task in a thread.
* The context switch is managed by the threads.So the task stack does not have to be managed directly,
* although the stack stack is still used to hold an WinThreadState structure this is the only thing it
* will be ever hold.
* YieldEvent used to make sure the thread does not execute before asynchronous SuspendThread() operation
* actually being performed.
* the structure indirectly maps the task handle to a thread handle
*********************************************************************************************************
*/
typedef struct
{
void *Param; //Thread param
void (*Entry)(void *); //Thread entry
void (*Exit)(void); //Thread exit
HANDLE YieldEvent;
HANDLE ThreadHandle;
DWORD ThreadID;
}win_thread_t;
const DWORD MS_VC_EXCEPTION=0x406D1388;
#pragma pack(push,8)
typedef struct tagTHREADNAME_INFO
{
DWORD dwType; // Must be 0x1000.
LPCSTR szName; // Pointer to name (in user addr space).
DWORD dwThreadID; // Thread ID (-1=caller thread).
DWORD dwFlags; // Reserved for future use, must be zero.
} THREADNAME_INFO;
#pragma pack(pop)
/*
*********************************************************************************************************
* LOCAL DEFINES
*********************************************************************************************************
*/
#define MAX_INTERRUPT_NUM ((rt_uint32_t)sizeof(rt_uint32_t) * 8)
/*
* Simulated interrupt waiting to be processed.this is a bit mask where each bit represent one interrupt
* so a maximum of 32 interrupts can be simulated
*/
static volatile rt_uint32_t CpuPendingInterrupts = 0;
/*
* An event used to inform the simulated interrupt processing thread (a high priority thread
* that simulated interrupt processing) that an interrupt is pending
*/
static HANDLE hInterruptEventHandle = NULL;
/*
* Mutex used to protect all the simulated interrupt variables that are accessed by multiple threads
*/
static HANDLE hInterruptEventMutex = NULL;
/*
* Handler for all the simulate software interrupts.
* The first two positions are used the Yield and Tick interrupt so are handled slightly differently
* all the other interrupts can be user defined
*/
static rt_uint32_t (*CpuIsrHandler[MAX_INTERRUPT_NUM])(void) = {0};
/*
* Handler for OSTick Thread
*/
static HANDLE OSTick_Thread;
static DWORD OSTick_ThreadID;
static HANDLE OSTick_SignalPtr;
static TIMECAPS OSTick_TimerCap;
static MMRESULT OSTick_TimerID;
/*
* flag in interrupt handling
*/
volatile rt_ubase_t rt_interrupt_from_thread = 0;
volatile rt_ubase_t rt_interrupt_to_thread = 0;
volatile rt_uint32_t rt_thread_switch_interrupt_flag = 0;
/*
*********************************************************************************************************
* PRIVATE FUNCTION PROTOTYPES
*********************************************************************************************************
*/
//static void WinThreadScheduler(void);
void WinThreadScheduler(void);
rt_uint32_t YieldInterruptHandle(void);
rt_uint32_t SysTickInterruptHandle(void);
static DWORD WINAPI ThreadforSysTickTimer(LPVOID lpParam);
static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam);
static void SetThreadName(DWORD dwThreadID, char* threadName)
{
#if defined(_MSC_VER)
THREADNAME_INFO info;
info.dwType = 0x1000;
info.szName = threadName;
info.dwThreadID = dwThreadID;
info.dwFlags = 0;
__try
{
RaiseException( MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info );
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
#endif
}
/*
*********************************************************************************************************
* rt_hw_stack_init()
* Description : Initialize stack of thread
* Argument(s) : void *pvEntry,void *pvParam,rt_uint8_t *pStackAddr,void *pvExit
* Return(s) : rt_uint8_t*
* Caller(s) : rt_thread_init or rt_thread_create
* Note(s) : none
*********************************************************************************************************
*/
static DWORD WINAPI thread_run( LPVOID lpThreadParameter )
{
rt_thread_t tid = rt_thread_self();
win_thread_t *pWinThread = (win_thread_t *)lpThreadParameter;
SetThreadName(GetCurrentThreadId(), tid->parent.name);
pWinThread->Entry(pWinThread->Param);
pWinThread->Exit();
return 0;
}
rt_uint8_t* rt_hw_stack_init(void *pEntry,void *pParam,rt_uint8_t *pStackAddr,void *pExit)
{
win_thread_t *pWinThread = NULL;
/*
* In this simulated case a stack is not initialized
* The thread handles the context switching itself. The WinThreadState object is placed onto the stack
* that was created for the task
* so the stack buffer is still used,just not in the conventional way.
*/
pWinThread = (win_thread_t *)(pStackAddr - sizeof(win_thread_t));
pWinThread->Entry = pEntry;
pWinThread->Param = pParam;
pWinThread->Exit = pExit;
pWinThread->ThreadHandle = NULL;
pWinThread->ThreadID = 0;
pWinThread->YieldEvent = CreateEvent(NULL,
FALSE,
FALSE,
NULL);
/* Create the winthread */
pWinThread->ThreadHandle = CreateThread(NULL,
0,
(LPTHREAD_START_ROUTINE) thread_run,
pWinThread,
CREATE_SUSPENDED,
&(pWinThread->ThreadID));
SetThreadAffinityMask(pWinThread->ThreadHandle,
0x01);
SetThreadPriorityBoost(pWinThread->ThreadHandle,
TRUE);
SetThreadPriority(pWinThread->ThreadHandle,
THREAD_PRIORITY_IDLE);
return (rt_uint8_t*)pWinThread;
} /*** rt_hw_stack_init ***/
/*
*********************************************************************************************************
* rt_hw_interrupt_disable()
* Description : disable cpu interrupts
* Argument(s) : void
* Return(s) : rt_base_t
* Caller(s) : Applicatios or os_kernel
* Note(s) : none
*********************************************************************************************************
*/
rt_base_t rt_hw_interrupt_disable(void)
{
if(hInterruptEventMutex != NULL)
{
WaitForSingleObject(hInterruptEventMutex,INFINITE);
}
return 0;
} /*** rt_hw_interrupt_disable ***/
/*
*********************************************************************************************************
* rt_hw_interrupt_enable()
* Description : enable cpu interrupts
* Argument(s) : rt_base_t level
* Return(s) : void
* Caller(s) : Applications or os_kernel
* Note(s) : none
*********************************************************************************************************
*/
void rt_hw_interrupt_enable(rt_base_t level)
{
level = level;
if (hInterruptEventMutex != NULL)
{
ReleaseMutex(hInterruptEventMutex);
}
} /*** rt_hw_interrupt_enable ***/
/*
*********************************************************************************************************
* rt_hw_context_switch_interrupt()
* Description : switch thread's contex
* Argument(s) : void
* Return(s) : void
* Caller(s) : os kernel
* Note(s) : none
*********************************************************************************************************
*/
void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to, rt_thread_t from_thread, rt_thread_t to_thread)
{
if(rt_thread_switch_interrupt_flag != 1)
{
rt_thread_switch_interrupt_flag = 1;
// set rt_interrupt_from_thread
rt_interrupt_from_thread = *((rt_ubase_t *)(from));
}
rt_interrupt_to_thread = *((rt_ubase_t *)(to));
//trigger YIELD exception(cause context switch)
TriggerSimulateInterrupt(CPU_INTERRUPT_YIELD);
} /*** rt_hw_context_switch_interrupt ***/
void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to)
{
if(rt_thread_switch_interrupt_flag != 1)
{
rt_thread_switch_interrupt_flag = 1;
// set rt_interrupt_from_thread
rt_interrupt_from_thread = *((rt_ubase_t *)(from));
}
// set rt_interrupt_to_thread
rt_interrupt_to_thread = *((rt_ubase_t *)(to));
//trigger YIELD exception(cause contex switch)
TriggerSimulateInterrupt(CPU_INTERRUPT_YIELD);
// make sure the event is not already signaled
win_thread_t *WinThread = (win_thread_t *)rt_interrupt_from_thread;
ResetEvent(WinThread->YieldEvent);
/*
* enable interrupt in advance so that scheduler can be executed.please note that interrupt
* maybe disable twice before.
*/
rt_hw_interrupt_enable(0);
rt_hw_interrupt_enable(0);
// wait to suspend.
WaitForSingleObject(WinThread->YieldEvent, INFINITE);
} /*** rt_hw_context_switch ***/
/*
*********************************************************************************************************
* rt_hw_context_switch_to()
* Description : switch to new thread
* Argument(s) : rt_uint32_t to //the stack address of the thread which will switch to
* Return(s) : void
* Caller(s) : rt_thread schecale
* Note(s) : this function is used to perform the first thread switch
*********************************************************************************************************
*/
void rt_hw_context_switch_to(rt_ubase_t to)
{
//set to thread
rt_interrupt_to_thread = *((rt_ubase_t *)(to));
//clear from thread
rt_interrupt_from_thread = 0;
//set interrupt to 1
rt_thread_switch_interrupt_flag = 1;
//start WinThreadScheduler
WinThreadScheduler();
//never reach here!
return;
} /*** rt_hw_context_switch_to ***/
/*
*********************************************************************************************************
* TriggerSimulateInterrupt()
* Description : Trigger a simulated interrupts handle
* Argument(s) : t_uint32_t IntIndex
* Return(s) : void
* Caller(s) : Applications
* Note(s) : none
*********************************************************************************************************
*/
void TriggerSimulateInterrupt(rt_uint32_t IntIndex)
{
if((IntIndex < MAX_INTERRUPT_NUM) && (hInterruptEventMutex != NULL))
{
/* Yield interrupts are processed even when critical nesting is non-zero */
WaitForSingleObject(hInterruptEventMutex,
INFINITE);
CpuPendingInterrupts |= (1 << IntIndex);
SetEvent(hInterruptEventHandle);
ReleaseMutex(hInterruptEventMutex);
}
} /*** TriggerSimulateInterrupt ***/
/*
*********************************************************************************************************
* RegisterSimulateInterrupt()
* Description : Register a interrupt handle to simulate paltform
* Argument(s) : rt_uint32_t IntIndex,rt_uint32_t (*IntHandler)(void)
* Return(s) : void
* Caller(s) : Applications
* Note(s) : none
*********************************************************************************************************
*/
void RegisterSimulateInterrupt(rt_uint32_t IntIndex,rt_uint32_t (*IntHandler)(void))
{
if(IntIndex < MAX_INTERRUPT_NUM)
{
if (hInterruptEventMutex != NULL)
{
WaitForSingleObject(hInterruptEventMutex,
INFINITE);
CpuIsrHandler[IntIndex] = IntHandler;
ReleaseMutex(hInterruptEventMutex);
}
else
{
CpuIsrHandler[IntIndex] = IntHandler;
}
}
} /*** RegisterSimulateInterrupt ***/
/*
*********************************************************************************************************
* PRIVATE FUNCTION
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* WinThreadScheduler()
* Description : Handle all simulate interrupts
* Argument(s) : void
* Return(s) : static void
* Caller(s) : os scachle
* Note(s) : none
*********************************************************************************************************
*/
#define WIN_WM_MIN_RES (1)
void WinThreadScheduler(void)
{
HANDLE hInterruptObjectList[2];
HANDLE hThreadHandle;
rt_uint32_t SwitchRequiredMask;
rt_uint32_t i;
win_thread_t *WinThreadFrom;
win_thread_t *WinThreadTo;
/*
* Install the interrupt handlers used bye scheduler itself
*/
RegisterSimulateInterrupt(CPU_INTERRUPT_YIELD,
YieldInterruptHandle);
RegisterSimulateInterrupt(CPU_INTERRUPT_TICK,
SysTickInterruptHandle);
/*
* Create the events and mutex that are used to synchronise all the WinThreads
*/
hInterruptEventMutex = CreateMutex(NULL,
FALSE,
NULL);
hInterruptEventHandle = CreateEvent(NULL,
FALSE,
FALSE,
NULL);
if((hInterruptEventMutex == NULL) || (hInterruptEventHandle == NULL))
{
return;
}
/*
* Set the priority of this WinThread such that it is above the priority of the WinThreads
* that run rt-threads.
* This is higher priority is required to ensure simulate interrupts take priority over rt-threads
*/
hThreadHandle = GetCurrentThread();
if(hThreadHandle == NULL)
{
return;
}
if (SetThreadPriority(hThreadHandle,
THREAD_PRIORITY_HIGHEST) == 0)
{
return;
}
SetThreadPriorityBoost(hThreadHandle,
TRUE);
SetThreadAffinityMask(hThreadHandle,
0x01);
/*
* Start the thread that simulates the timer peripheral to generate tick interrupts.
*/
OSTick_Thread = CreateThread(NULL,
0,
ThreadforSysTickTimer,
0,
CREATE_SUSPENDED,
&OSTick_ThreadID);
if(OSTick_Thread == NULL)
{
//Display Error Message
return;
}
SetThreadPriority(OSTick_Thread,
THREAD_PRIORITY_NORMAL);
SetThreadPriorityBoost(OSTick_Thread,
TRUE);
SetThreadAffinityMask(OSTick_Thread,
0x01);
/*
* Set timer Caps
*/
if (timeGetDevCaps(&OSTick_TimerCap,
sizeof(OSTick_TimerCap)) != TIMERR_NOERROR)
{
CloseHandle(OSTick_Thread);
return;
}
if (OSTick_TimerCap.wPeriodMin < WIN_WM_MIN_RES)
{
OSTick_TimerCap.wPeriodMin = WIN_WM_MIN_RES;
}
if(timeBeginPeriod(OSTick_TimerCap.wPeriodMin) != TIMERR_NOERROR)
{
CloseHandle(OSTick_Thread);
return;
}
OSTick_SignalPtr = CreateEvent(NULL,TRUE,FALSE,NULL);
if(OSTick_SignalPtr == NULL)
{
// disp error message
timeEndPeriod(OSTick_TimerCap.wPeriodMin);
CloseHandle(OSTick_Thread);
return;
}
OSTick_TimerID = timeSetEvent((UINT ) (1000 / RT_TICK_PER_SECOND) ,
(UINT ) OSTick_TimerCap.wPeriodMin,
(LPTIMECALLBACK ) OSTick_SignalPtr,
(DWORD_PTR ) NULL,
(UINT ) (TIME_PERIODIC | TIME_CALLBACK_EVENT_SET));
if(OSTick_TimerID == 0)
{
//disp
CloseHandle(OSTick_SignalPtr);
timeEndPeriod(OSTick_TimerCap.wPeriodMin);
CloseHandle(OSTick_Thread);
return;
}
/*
* Start OS Tick Thread an release Interrupt Mutex
*/
ResumeThread(OSTick_Thread);
ReleaseMutex( hInterruptEventMutex );
//trigger YEILD INTERRUPT
TriggerSimulateInterrupt(CPU_INTERRUPT_YIELD);
/*
* block on the mutex that ensure exclusive access to the simulated interrupt objects
* and the events that signals that a simulated interrupt should be processed.
*/
hInterruptObjectList[0] = hInterruptEventHandle;
hInterruptObjectList[1] = hInterruptEventMutex;
while (1)
{
WaitForMultipleObjects(sizeof(hInterruptObjectList) / sizeof(HANDLE),
hInterruptObjectList,
TRUE,
INFINITE);
/*
* Used to indicate whether the simulate interrupt processing has necessitated a contex
* switch to another thread
*/
SwitchRequiredMask = 0;
/*
* For each interrupt we are interested in processing ,each of which is represented
* by a bit in the 32bit CpuPendingInterrupts variable.
*/
for (i = 0; i < MAX_INTERRUPT_NUM; ++i)
{
/* is the simulated interrupt pending ? */
if (CpuPendingInterrupts & (1UL << i))
{
/* Is a handler installed ?*/
if (CpuIsrHandler[i] != NULL)
{
/* Run the actual handler */
if (CpuIsrHandler[i]() != 0)
{
SwitchRequiredMask |= (1UL << i);
}
}
/* Clear the interrupt pending bit */
CpuPendingInterrupts &= ~(1UL << i);
}
}
if(SwitchRequiredMask != 0)
{
WinThreadFrom = (win_thread_t *)rt_interrupt_from_thread;
WinThreadTo = (win_thread_t *)rt_interrupt_to_thread;
if ((WinThreadFrom != NULL) && (WinThreadFrom->ThreadHandle != NULL))
{
SuspendThread(WinThreadFrom->ThreadHandle);
SetEvent(WinThreadFrom->YieldEvent);
}
ResumeThread(WinThreadTo->ThreadHandle);
}
ReleaseMutex(hInterruptEventMutex);
}
} /*** WinThreadScheduler ***/
/*
*********************************************************************************************************
* ThreadforSysTickTimer()
* Description : win thread to simulate a systick timer
* Argument(s) : LPVOID lpParam
* Return(s) : static DWORD WINAPI
* Caller(s) : none
* Note(s) : This is not a real time way of generating tick events as the next wake time should be relative
* to the previous wake time,not the time Sleep() is called.
* It is done this way to prevent overruns in this very non real time simulated/emulated environment
*********************************************************************************************************
*/
static DWORD WINAPI ThreadforSysTickTimer(LPVOID lpParam)
{
(void)lpParam; //prevent compiler warnings
for(;;)
{
/*
* Wait until the timer expires and we can access the simulated interrupt variables.
*/
WaitForSingleObject(OSTick_SignalPtr,INFINITE);
ResetEvent(OSTick_SignalPtr);
/*
* Trigger a systick interrupt
*/
TriggerSimulateInterrupt(CPU_INTERRUPT_TICK);
}
return 0;
} /*** prvThreadforSysTickTimer ***/
/*
*********************************************************************************************************
* SysTickInterruptHandle()
* Description : Interrupt handle for systick
* Argument(s) : void
* Return(s) : rt_uint32_t
* Caller(s) : none
* Note(s) : none
*********************************************************************************************************
*/
rt_uint32_t SysTickInterruptHandle(void)
{
/* enter interrupt */
rt_interrupt_enter();
rt_tick_increase();
/* leave interrupt */
rt_interrupt_leave();
return 0;
} /*** SysTickInterruptHandle ***/
/*
*********************************************************************************************************
* YieldInterruptHandle()
* Description : Interrupt handle for Yield
* Argument(s) : void
* Return(s) : rt_uint32_t
* Caller(s) : none
* Note(s) : none
*********************************************************************************************************
*/
rt_uint32_t YieldInterruptHandle(void)
{
/*
* if rt_thread_switch_interrupt_flag = 1 yield already handled
*/
if(rt_thread_switch_interrupt_flag != 0)
{
rt_thread_switch_interrupt_flag = 0;
/* return thread switch request = 1 */
return 1;
}
return 0;
} /*** YieldInterruptHandle ***/

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/*
************************************************************************************************************************
* File : cpu_port.h
* By : xyou
* Version : V1.00.00
************************************************************************************************************************
*/
#ifndef _CPU_PORT_H_
#define _CPU_PORT_H_
/*
*********************************************************************************************************
* CPU INTERRUPT PRIORITY
*********************************************************************************************************
*/
#define CPU_INTERRUPT_YIELD 0x01 // should be set to the lowest priority.
#define CPU_INTERRUPT_TICK 0x00
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
*********************************************************************************************************
*/
void TriggerSimulateInterrupt(rt_uint32_t IntIndex);
void WinThreadScheduler(void);
#endif /* _CPU_PORT_H_ */

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/*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-12-04 tyx first implementation
*/
#include <rthw.h>
#include <rtthread.h>
#ifdef RT_USING_USER_MAIN
#ifndef RT_MAIN_THREAD_STACK_SIZE
#define RT_MAIN_THREAD_STACK_SIZE 2048
#endif
#ifndef RT_MAIN_THREAD_PRIORITY
#define RT_MAIN_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX / 3)
#endif
#endif
#ifdef RT_USING_COMPONENTS_INIT
/*
* Components Initialization will initialize some driver and components as following
* order:
* rti_start --> 0
* BOARD_EXPORT --> 1
* rti_board_end --> 1.end
*
* DEVICE_EXPORT --> 2
* COMPONENT_EXPORT --> 3
* FS_EXPORT --> 4
* ENV_EXPORT --> 5
* APP_EXPORT --> 6
*
* rti_end --> 6.end
*
* These automatically initialization, the driver or component initial function must
* be defined with:
* INIT_BOARD_EXPORT(fn);
* INIT_DEVICE_EXPORT(fn);
* ...
* INIT_APP_EXPORT(fn);
* etc.
*/
#pragma section("rti_fn$a", read)
const char __rti_fn_begin_name[] = "__rti_fn_start";
__declspec(allocate("rti_fn$a")) const struct rt_init_desc __rti_fn_begin =
{
__rti_fn_begin_name,
NULL
};
#pragma section("rti_fn$z", read)
const char __rti_fn_end_name[] = "__rti_fn_end";
__declspec(allocate("rti_fn$z")) const struct rt_init_desc __rti_fn_end =
{
__rti_fn_end_name,
NULL
};
static int rti_start(void)
{
return 0;
}
INIT_EXPORT(rti_start, "0");
static int rti_board_end(void)
{
return 0;
}
INIT_EXPORT(rti_board_end, "1.end");
static int rti_end(void)
{
return 0;
}
INIT_EXPORT(rti_end, "6.end");
struct rt_init_tag
{
const char *level;
init_fn_t fn;
#ifdef RT_DEBUGING_AUTO_INIT
const char *fn_name;
#endif
};
static rt_size_t rt_init_num = 0;
static struct rt_init_tag rt_init_table[2048] = { 0 };
static rt_bool_t rt_init_flag = RT_FALSE;
static int rt_init_objects_sort(void)
{
rt_size_t index_i, index_j;
struct rt_init_tag init_temp = { 0 };
unsigned int *ptr_begin = (unsigned int *)&__rti_fn_begin;
unsigned int *ptr_end = (unsigned int *)&__rti_fn_end;
struct rt_init_tag *table = rt_init_table;
ptr_begin += (sizeof(struct rt_init_desc) / sizeof(unsigned int));
if (rt_init_flag)
return rt_init_num;
while (*ptr_begin == 0)
ptr_begin++;
do (ptr_end--);
while (*ptr_end == 0);
while (ptr_begin < ptr_end)
{
if (*ptr_begin != 0)
{
table->level = ((struct rt_init_desc *)ptr_begin)->level;
table->fn = ((struct rt_init_desc *)ptr_begin)->fn;
#ifdef RT_DEBUGING_AUTO_INIT
table->fn_name = ((struct rt_init_desc *)ptr_begin)->fn_name;
#endif
ptr_begin += sizeof(struct rt_init_desc) / sizeof(unsigned int);
table++;
rt_init_num += 1;
}
else
{
ptr_begin++;
}
}
if (rt_init_num == 0) /* no need sort */
return rt_init_num;
/* bubble sort algorithms */
for (index_i = 0; index_i < (rt_init_num - 1); index_i++)
{
for (index_j = 0; index_j < ((rt_init_num - 1) - index_i); index_j++)
{
if (rt_strcmp(rt_init_table[index_j].level, rt_init_table[index_j + 1].level) > 0)
{
init_temp = rt_init_table[index_j];
rt_init_table[index_j] = rt_init_table[index_j + 1];
rt_init_table[index_j + 1] = init_temp;
}
}
}
rt_init_flag = RT_TRUE;
return rt_init_num;
}
/**
* RT-Thread Components Initialization for board
*/
void rt_components_board_init(void)
{
const char* lv_start = ".rti_fn.0";
const char* lv_end = ".rti_fn.1.end";
rt_size_t index_i;
int result;
rt_init_objects_sort();
for (index_i = 0; index_i < rt_init_num; index_i++)
{
if (rt_init_table[index_i].fn)
{
if (rt_strcmp(rt_init_table[index_i].level, lv_end) >= 0)
{
break;
}
#ifdef RT_DEBUGING_AUTO_INIT
rt_kprintf("initialize %s", rt_init_table[index_i].fn_name);
result = rt_init_table[index_i].fn();
rt_kprintf(":%d done\n", result);
#else
result = rt_init_table[index_i].fn();
#endif /* RT_DEBUGING_AUTO_INIT */
}
}
}
/**
* RT-Thread Components Initialization
*/
void rt_components_init(void)
{
const char* lv_start = ".rti_fn.1.end";
const char* lv_end = ".rti_fn.6.end";
int result;
rt_size_t index_i;
rt_init_objects_sort();
for (index_i = 0; index_i < rt_init_num; index_i++)
{
if (rt_init_table[index_i].fn)
{
if (rt_strcmp(rt_init_table[index_i].level, lv_start) <= 0)
{
continue;
}
if (rt_strcmp(rt_init_table[index_i].level, lv_end) >= 0)
{
break;
}
#ifdef RT_DEBUGING_AUTO_INIT
rt_kprintf("initialize %s", rt_init_table[index_i].fn_name);
result = rt_init_table[index_i].fn();
rt_kprintf(":%d done\n", result);
#else
result = rt_init_table[index_i].fn();
#endif
}
}
}
#endif /* RT_USING_COMPONENTS_INIT */
#ifdef RT_USING_USER_MAIN
void rt_application_init(void);
void rt_hw_board_init(void);
int rtthread_startup(void);
/* system entry */
extern int rtthread_startup(void);
int wmain(int argc, char* argv[])
{
/* disable interrupt first */
rt_hw_interrupt_disable();
/* startup RT-Thread RTOS */
rtthread_startup();
}
#pragma comment(linker, "/subsystem:console /entry:wmainCRTStartup")
#ifndef RT_USING_HEAP
/* if there is not enable heap, we should use static thread and stack. */
rt_align(8)
static rt_uint8_t main_stack[RT_MAIN_THREAD_STACK_SIZE];
struct rt_thread main_thread;
#endif
/* the system main thread */
void main_thread_entry(void *parameter)
{
extern int main(void);
#ifdef RT_USING_COMPONENTS_INIT
/* RT-Thread components initialization */
rt_components_init();
#endif
#ifdef RT_USING_SMP
rt_hw_secondary_cpu_up();
#endif
/* invoke system main function */
main();
}
void rt_application_init(void)
{
rt_thread_t tid;
#ifdef RT_USING_HEAP
tid = rt_thread_create("main", main_thread_entry, RT_NULL,
RT_MAIN_THREAD_STACK_SIZE, RT_MAIN_THREAD_PRIORITY, 20);
RT_ASSERT(tid != RT_NULL);
#else
rt_err_t result;
tid = &main_thread;
result = rt_thread_init(tid, "main", main_thread_entry, RT_NULL,
main_stack, sizeof(main_stack), RT_MAIN_THREAD_PRIORITY, 20);
RT_ASSERT(result == RT_EOK);
/* if not define RT_USING_HEAP, using to eliminate the warning */
(void)result;
#endif
rt_thread_startup(tid);
}
int rtthread_startup(void)
{
rt_hw_interrupt_disable();
/* board level initialization
* NOTE: please initialize heap inside board initialization.
*/
rt_hw_board_init();
/* show RT-Thread version */
rt_show_version();
/* timer system initialization */
rt_system_timer_init();
/* scheduler system initialization */
rt_system_scheduler_init();
#ifdef RT_USING_SIGNALS
/* signal system initialization */
rt_system_signal_init();
#endif
/* create init_thread */
rt_application_init();
/* timer thread initialization */
rt_system_timer_thread_init();
/* idle thread initialization */
rt_thread_idle_init();
#ifdef RT_USING_SMP
rt_hw_spin_lock(&_cpus_lock);
#endif /*RT_USING_SMP*/
/* start scheduler */
rt_system_scheduler_start();
/* never reach here */
return 0;
}
#endif