Merge pull request #19 from prife/simmerge
merge simulator for linux to master branch
This commit is contained in:
Bernard Xiong
commit
ead6922231
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@ -18,38 +18,44 @@ else:
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sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
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from building import *
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TARGET = 'rtthread-win32.' + rtconfig.TARGET_EXT
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env = Environment()
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Export('RTT_ROOT')
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Export('rtconfig')
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libs = Split('''
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winmm
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gdi32
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winspool
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comdlg32
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advapi32
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shell32
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ole32
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oleaut32
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uuid
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odbc32
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odbccp32
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''')
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definitions = Split('''
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WIN32
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_DEBUG
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_CONSOLE
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MSVC
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_TIME_T_DEFINED
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''')
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if rtconfig.PLATFORM == 'cl':
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TARGET = 'rtthread-win32.' + rtconfig.TARGET_EXT
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libs = Split('''
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winmm
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gdi32
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winspool
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comdlg32
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advapi32
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shell32
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ole32
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oleaut32
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uuid
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odbc32
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odbccp32
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''')
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definitions = Split('''
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WIN32
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_DEBUG
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_CONSOLE
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MSVC
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_TIME_T_DEFINED
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''')
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env.Append(CCFLAGS=rtconfig.CFLAGS)
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env.Append(LINKFLAGS=rtconfig.LFLAGS)
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env['LIBS']=libs
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env['CPPDEFINES']=definitions
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else:
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TARGET = 'rtthread'
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env.Append(CCFLAGS=rtconfig.CFLAGS)
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env.Append(LINKFLAGS=rtconfig.LFLAGS)
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env.Append(CCFLAGS=rtconfig.CFLAGS)
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env.Append(LINKFLAGS=rtconfig.LFLAGS)
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env['LIBS']=libs
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env['CPPDEFINES']=definitions
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# prepare building environment
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@ -2,6 +2,10 @@ from building import *
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cwd = GetCurrentDir()
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src = Glob('*.c')
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# remove no need file.
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if GetDepend('RT_USING_DFS_WINSHAREDIR') == False:
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SrcRemove(src, 'dfs_win32.c')
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CPPPATH = [cwd, str(Dir('#'))]
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group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
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@ -18,6 +18,7 @@
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#include <components.h>
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void rt_init_thread_entry(void *parameter)
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{
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#ifdef RT_USING_LWIP
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@ -49,7 +50,11 @@ void rt_init_thread_entry(void *parameter)
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#ifdef RT_USING_DFS_ELMFAT
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/* mount sd card fatfs as root directory */
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#ifdef _WIN32
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if (dfs_mount("sd0", "/disk/sd", "elm", 0, 0) == 0)
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#else
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if (dfs_mount("sd0", "/", "elm", 0, 0) == 0)
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#endif
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rt_kprintf("fatfs initialized!\n");
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else
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rt_kprintf("fatfs initialization failed!\n");
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@ -73,31 +78,19 @@ void rt_init_thread_entry(void *parameter)
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}
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#endif
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#if 0
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{
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extern void application_init(void);
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rt_thread_delay(RT_TICK_PER_SECOND);
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application_init();
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}
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#endif
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#if defined(RT_USING_RTGUI)
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rt_thread_delay(3000);
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snake_main();
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#endif
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}
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static void rt_test_thread_entry(void *parameter)
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{
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int i;
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for (i = 0; i < 10; i++)
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for (i = 0; i < 5; i++)
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{
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rt_kprintf("hello, world\n");
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rt_thread_delay(100);
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rt_thread_delay(RT_TICK_PER_SECOND);
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}
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}
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int rt_application_init()
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{
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rt_thread_t tid;
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@ -118,5 +111,4 @@ int rt_application_init()
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return 0;
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}
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/*@}*/
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@ -16,7 +16,6 @@
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#include <rtthread.h>
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#include "board.h"
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#include <stdlib.h>
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#include <windows.h>
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/**
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* @addtogroup simulator on win32
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@ -30,29 +29,56 @@ rt_uint8_t *rt_hw_sram_init(void)
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if (heap == RT_NULL)
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{
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rt_kprintf("there is no memory in pc.");
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#ifdef _WIN32
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_exit(1);
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#else
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exit(1);
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#endif
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}
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return heap;
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}
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#ifdef _WIN32
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#include <windows.h>
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#endif
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void rt_hw_win32_low_cpu(void)
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{
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#ifdef _WIN32
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/* in windows */
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Sleep(1000);
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#else
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/* in linux */
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sleep(1);
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#endif
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}
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#if defined(RT_USING_FINSH)
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#ifdef _WIN32
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#ifndef _CRT_TERMINATE_DEFINED
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#define _CRT_TERMINATE_DEFINED
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_CRTIMP __declspec(noreturn) void __cdecl exit(__in int _Code);
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_CRTIMP __declspec(noreturn) void __cdecl _exit(__in int _Code);
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_CRTIMP void __cdecl abort(void);
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#endif
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#endif
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#if defined(RT_USING_FINSH)
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#include <finsh.h>
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void rt_hw_exit(void)
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{
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rt_kprintf("RT-Thread, bye\n");
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#if !defined(_WIN32) && defined(__GNUC__)
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/* *
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* getchar reads key from buffer, while finsh need an non-buffer getchar
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* in windows, getch is such an function, in linux, we had to change
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* the behaviour of terminal to get an non-buffer getchar.
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* in usart_sim.c, set_stty is called to do this work
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* */
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{
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extern void restore_stty(void);
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restore_stty();
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}
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#endif
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exit(0);
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}
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FINSH_FUNCTION_EXPORT_ALIAS(rt_hw_exit, exit, exit rt - thread);
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@ -66,8 +92,11 @@ void rt_hw_board_init()
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/* init system memory */
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heap = rt_hw_sram_init();
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#if defined(RT_USING_CONSOLE)
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//#if defined(RT_USING_USART)
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rt_hw_usart_init();
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//#endif
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#if defined(RT_USING_CONSOLE)
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rt_hw_serial_init();
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif
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@ -1,7 +1,7 @@
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#include <rtthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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//#include <stdlib.h>
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//#include <string.h>
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#include <dfs_def.h>
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// #define SD_TRACE rt_kprintf
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@ -1,6 +1,10 @@
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#include <rtthread.h>
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#ifdef _WIN32
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#include <sdl.h>
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#else
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#include <SDL/SDL.h>
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#endif
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#include <rtdevice.h>
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#include <rtgui/driver.h>
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@ -104,7 +108,7 @@ static void sdlfb_hw_init(void)
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//_putenv("SDL_VIDEODRIVER=windib");
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//if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_AUDIO) < 0)
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if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
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if (SDL_Init(SDL_INIT_VIDEO) < 0)
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{
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fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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exit(1);
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@ -132,16 +136,24 @@ static void sdlfb_hw_init(void)
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sdllock = rt_mutex_create("fb", RT_IPC_FLAG_FIFO);
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}
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#ifdef _WIN32
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#include <windows.h>
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#include <mmsystem.h>
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#else
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#include <pthread.h>
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#endif
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#include <stdio.h>
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#include <sdl.h>
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#include <rtgui/event.h>
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#include <rtgui/kbddef.h>
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#include <rtgui/rtgui_server.h>
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#include <rtgui/rtgui_system.h>
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#ifdef _WIN32
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static DWORD WINAPI sdl_loop(LPVOID lpParam)
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#else
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static void *sdl_loop(void *lpParam)
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#endif
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{
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int quit = 0;
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SDL_Event event;
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@ -284,6 +296,7 @@ static DWORD WINAPI sdl_loop(LPVOID lpParam)
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/* start sdl thread */
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void rt_hw_sdl_start(void)
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{
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#ifdef _WIN32
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HANDLE thread;
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DWORD thread_id;
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@ -301,4 +314,15 @@ void rt_hw_sdl_start(void)
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return;
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}
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ResumeThread(thread);
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#else
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/* Linux */
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pthread_t pid;
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int res;
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res = pthread_create(&pid, NULL, &sdl_loop, NULL);
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if (res)
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{
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printf("pthread create sdl thread faild, <%d>\n", res);
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exit(EXIT_FAILURE);
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}
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#endif
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}
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@ -13,8 +13,12 @@
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#include "serial.h"
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#include <stdio.h>
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struct rt_device serial_device;
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extern struct serial_int_rx serial_rx;
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//extern struct serial_int_rx serial_rx;
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struct serial_int_rx serial_rx;
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#if 0
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static FILE *fp = RT_NULL;
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#endif
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/*@{*/
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@ -109,13 +113,16 @@ static rt_size_t rt_serial_write(rt_device_t dev, rt_off_t pos, const void *buff
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#if _DEBUG_SERIAL==1
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printf("in rt_serial_write()\n");
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#endif
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#if 0
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if (fp == NULL)
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fp = fopen("log.txt", "wb+");
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if (fp != NULL)
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fwrite(buffer, size, 1, fp);
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#endif
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printf("%s", (char *)buffer);
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fflush(stdout);
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return size;
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}
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@ -1,15 +1,19 @@
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#include <rthw.h>
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#include <rtthread.h>
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#ifdef _WIN32
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#include <windows.h>
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#include <mmsystem.h>
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#include <stdio.h>
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#include <conio.h>
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#endif
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#include <stdio.h>
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#include "serial.h"
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struct serial_int_rx serial_rx;
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extern struct rt_device serial_device;
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#ifdef _WIN32
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/*
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* Handler for OSKey Thread
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*/
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@ -19,7 +23,6 @@ static DWORD OSKey_ThreadID;
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static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam);
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void rt_hw_usart_init(void)
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{
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/*
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* create serial thread that receive key input from keyboard
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*/
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@ -46,9 +49,31 @@ void rt_hw_usart_init(void)
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* Start OS get key Thread
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*/
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ResumeThread(OSKey_Thread);
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}
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#else /* POSIX version */
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#include <pthread.h>
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#include <semaphore.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <termios.h> /* for tcxxxattr, ECHO, etc */
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#include <unistd.h> /* for STDIN_FILENO */
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static void * ThreadforKeyGet(void * lpParam);
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static pthread_t OSKey_Thread;
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void rt_hw_usart_init(void)
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{
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int res;
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res = pthread_create(&OSKey_Thread, NULL, &ThreadforKeyGet, NULL);
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if (res)
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{
|
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printf("pthread create faild, <%d>\n", res);
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exit(EXIT_FAILURE);
|
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}
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}
|
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#endif
|
||||
/*
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* ·½Ïò¼ü(¡û)£º 0xe04b
|
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* ·½Ïò¼ü(¡ü)£º 0xe048
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@ -100,15 +125,48 @@ static int savekey(unsigned char key)
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}
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return 0;
|
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}
|
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#ifdef _WIN32
|
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static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam)
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#else
|
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|
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static struct termios oldt, newt;
|
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/*simulate windows' getch(), it works!!*/
|
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void set_stty(void)
|
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{
|
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/* get terminal input's attribute */
|
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tcgetattr(STDIN_FILENO, &oldt);
|
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newt = oldt;
|
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|
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/* set termios' local mode */
|
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newt.c_lflag &= ~(ECHO|ICANON);
|
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tcsetattr(STDIN_FILENO, TCSANOW, &newt);
|
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}
|
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|
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void restore_stty(void)
|
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{
|
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/* recover terminal's attribute */
|
||||
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
|
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}
|
||||
|
||||
#define getch getchar
|
||||
|
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static void * ThreadforKeyGet(void * lpParam)
|
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#endif /* not _WIN32*/
|
||||
{
|
||||
unsigned char key;
|
||||
|
||||
#ifndef _WIN32
|
||||
sigset_t sigmask, oldmask;
|
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/* set the getchar without buffer */
|
||||
sigfillset(&sigmask);
|
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pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
|
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set_stty();
|
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#endif
|
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(void)lpParam; //prevent compiler warnings
|
||||
|
||||
for (;;)
|
||||
{
|
||||
key = getch();
|
||||
#ifdef _WIN32
|
||||
if (key == 0xE0)
|
||||
{
|
||||
key = getch();
|
||||
|
|
@ -128,7 +186,7 @@ static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam)
|
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|
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continue;
|
||||
}
|
||||
|
||||
#endif
|
||||
savekey(key);
|
||||
}
|
||||
} /*** ThreadforKeyGet ***/
|
||||
|
|
@ -2,15 +2,15 @@
|
|||
#ifndef __RTTHREAD_CFG_H__
|
||||
#define __RTTHREAD_CFG_H__
|
||||
|
||||
#define RT_HEAP_SIZE (1024*1024*2)
|
||||
|
||||
#if defined(_MSC_VER)
|
||||
/* SECTION: port for visual studio */
|
||||
#ifdef _MSC_VER
|
||||
#undef RT_USING_NEWLIB
|
||||
#undef RT_USING_MINILIBC
|
||||
#define NORESOURCE //RT_VESRION in winuser.h
|
||||
#define _CRT_ERRNO_DEFINED //errno macro redefinition
|
||||
|
||||
#define RT_HEAP_SIZE (1024*1024*2)
|
||||
|
||||
/* disable some warning in MSC */
|
||||
#pragma warning(disable:4273) /* to ignore: warning C4273: inconsistent dll linkage */
|
||||
#pragma warning(disable:4312) /* to ignore: warning C4312: 'type cast' : conversion from 'rt_uint32_t' to 'rt_uint32_t *' */
|
||||
|
|
@ -18,6 +18,9 @@
|
|||
#pragma warning(disable:4996) /* to ignore: warning C4996: The POSIX name for this item is deprecated. */
|
||||
#pragma warning(disable:4267) /* to ignore: warning C4267: conversion from 'size_t' to 'rt_size_t', possible loss of data */
|
||||
#pragma warning(disable:4244) /* to ignore: warning C4244: '=' : conversion from '__w64 int' to 'rt_size_t', possible loss of data */
|
||||
|
||||
#elif defined(__GNUC__)
|
||||
#define RT_USING_NOLIBC
|
||||
#endif
|
||||
|
||||
/* SECTION: basic kernel options */
|
||||
|
|
@ -31,11 +34,12 @@
|
|||
#define RT_THREAD_PRIORITY_MAX 32
|
||||
|
||||
/* Tick per Second */
|
||||
#define RT_TICK_PER_SECOND 1000
|
||||
#define RT_TICK_PER_SECOND 100
|
||||
|
||||
/* SECTION: RT_DEBUG */
|
||||
/* Thread Debug */
|
||||
#define RT_DEBUG
|
||||
//#define RT_DEBUG_SCHEDULER 1
|
||||
#define RT_THREAD_DEBUG
|
||||
|
||||
#define RT_USING_OVERFLOW_CHECK
|
||||
|
|
@ -129,11 +133,11 @@
|
|||
/* #define RT_UFFS_USE_CHECK_MARK_FUNCITON */
|
||||
|
||||
/* DFS: JFFS2 nor flash file system options */
|
||||
#define RT_USING_DFS_JFFS2
|
||||
//#define RT_USING_DFS_JFFS2
|
||||
|
||||
/* DFS: windows share directory mounted to rt-thread/dfs */
|
||||
/* only used in bsp/simulator */
|
||||
#define RT_USING_DFS_WINSHAREDIR
|
||||
//#define RT_USING_DFS_WINSHAREDIR
|
||||
|
||||
/* the max number of mounted file system */
|
||||
#define DFS_FILESYSTEMS_MAX 4
|
||||
|
|
|
|||
|
|
@ -1,7 +1,9 @@
|
|||
# toolchains options
|
||||
ARCH='sim'
|
||||
CPU='win32' #CPU='posix'
|
||||
CROSS_TOOL='msvc' #win32
|
||||
#CPU='win32'
|
||||
#CPU='posix'
|
||||
CPU='posix'
|
||||
CROSS_TOOL='gcc' #msvc # gcc
|
||||
|
||||
# lcd panel options
|
||||
# 'FMT0371','ILI932X', 'SSD1289'
|
||||
|
|
@ -33,16 +35,19 @@ if PLATFORM == 'gcc':
|
|||
OBJCPY = PREFIX + 'objcopy'
|
||||
|
||||
DEVICE = ' -ffunction-sections -fdata-sections'
|
||||
CFLAGS = DEVICE
|
||||
DEVICE = ' '
|
||||
CFLAGS = DEVICE + ' -I/usr/include -w -D_REENTRANT'
|
||||
AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
|
||||
#LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map,-cref,-u,Reset_Handler -T stm32_rom.ld'
|
||||
LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map -lpthread'
|
||||
#LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map -lpthread'
|
||||
#LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map -pthread'
|
||||
LFLAGS = DEVICE + ' -Wl,-Map=rtthread-linux.map -pthread -T gcc.ld'
|
||||
|
||||
CPATH = ''
|
||||
LPATH = ''
|
||||
|
||||
if BUILD == 'debug':
|
||||
CFLAGS += ' -O0 -gdwarf-2'
|
||||
CFLAGS += ' -g -O0 -gdwarf-2'
|
||||
AFLAGS += ' -gdwarf-2'
|
||||
else:
|
||||
CFLAGS += ' -O2'
|
||||
|
|
|
|||
|
|
@ -0,0 +1,566 @@
|
|||
/*
|
||||
* author : prife (goprife@gmail.com)
|
||||
* date : 2013/01/14 01:18:50
|
||||
* version: v 0.2.0
|
||||
*/
|
||||
#include <rtthread.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <pthread.h>
|
||||
#include <signal.h>
|
||||
#include <unistd.h>
|
||||
#include <semaphore.h>
|
||||
#include <time.h>
|
||||
#include <sys/time.h>
|
||||
|
||||
//#define TRACE printf
|
||||
#define TRACE(...)
|
||||
|
||||
typedef struct _thread
|
||||
{
|
||||
pthread_t pthread;
|
||||
void (*task)(void *);
|
||||
void *para;
|
||||
void (*exit)(void);
|
||||
sem_t sem;
|
||||
rt_thread_t rtthread;
|
||||
int status;
|
||||
void *data;
|
||||
} thread_t;
|
||||
|
||||
#define THREAD_T(thread) ((thread_t *)thread)
|
||||
|
||||
#define MSG_SUSPEND SIGUSR1 /* 10 */
|
||||
#define MSG_RESUME SIGUSR2
|
||||
#define MSG_TICK SIGALRM /* 14 */
|
||||
#define TIMER_TYPE ITIMER_REAL
|
||||
#define MAX_INTERRUPT_NUM ((unsigned int)sizeof(unsigned int) * 8)
|
||||
|
||||
#define INTERRUPT_ENABLE 0
|
||||
#define INTERRUPT_DISABLE 1
|
||||
|
||||
/* 线程挂起状态，共两种取值 */
|
||||
#define SUSPEND_LOCK 0
|
||||
#define SUSPEND_SIGWAIT 1
|
||||
#define THREAD_RUNNING 2
|
||||
|
||||
/* interrupt flag, if 1, disable, if 0, enable */
|
||||
static long interrupt_disable_flag;
|
||||
//static int systick_signal_flag;
|
||||
|
||||
/* flag in interrupt handling */
|
||||
rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
|
||||
rt_uint32_t rt_thread_switch_interrupt_flag;
|
||||
|
||||
/* interrupt event mutex */
|
||||
static pthread_mutex_t *ptr_int_mutex;
|
||||
static pthread_cond_t cond_int_hit; /* interrupt occured! */
|
||||
static volatile unsigned int cpu_pending_interrupts;
|
||||
static int (* cpu_isr_table[MAX_INTERRUPT_NUM])(void) = {0};
|
||||
|
||||
static pthread_t mainthread_pid;
|
||||
|
||||
/* function definition */
|
||||
static void start_sys_timer(void);
|
||||
static int tick_interrupt_isr(void);
|
||||
static void mthread_signal_tick(int sig);
|
||||
static int mainthread_scheduler(void);
|
||||
|
||||
int signal_install(int sig, void (*func)(int))
|
||||
{
|
||||
struct sigaction act;
|
||||
|
||||
/* set the signal handler */
|
||||
act.sa_handler = func ;
|
||||
sigemptyset(&act.sa_mask);
|
||||
act.sa_flags = 0;
|
||||
sigaction(sig, &act, 0);
|
||||
}
|
||||
|
||||
int signal_mask(void)
|
||||
{
|
||||
sigset_t sigmask, oldmask;
|
||||
|
||||
/* set signal mask */
|
||||
sigemptyset(&sigmask);
|
||||
sigaddset(&sigmask, SIGALRM);
|
||||
pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
|
||||
}
|
||||
static void thread_suspend_signal_handler(int sig)
|
||||
{
|
||||
sigset_t sigmask;
|
||||
pthread_t pid = pthread_self();
|
||||
thread_t *thread_from;
|
||||
thread_t *thread_to;
|
||||
rt_thread_t tid;
|
||||
|
||||
if (sig != MSG_SUSPEND)
|
||||
{
|
||||
printf("get an unexpected signal <%d>, exit\n", sig);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
thread_from = (thread_t *) rt_interrupt_from_thread;
|
||||
thread_to = (thread_t *) rt_interrupt_to_thread;
|
||||
|
||||
/* 注意！此时 rt_thread_self的值是to线程的值！ */
|
||||
tid = rt_thread_self();
|
||||
/* FIXME RT_ASSERT(thread_from->pthread == pid); */
|
||||
RT_ASSERT((thread_t *)(tid->sp) == thread_to);
|
||||
|
||||
TRACE("signal: SIGSUSPEND suspend <%s>\n", thread_from->rtthread->name);
|
||||
|
||||
/* 使用sigwait或者sigsuspend来挂起from线程 */
|
||||
//sem_wait(&thread_from->sem);
|
||||
sigemptyset(&sigmask);
|
||||
sigaddset(&sigmask, MSG_RESUME);
|
||||
|
||||
/* Beginnig Linux Programming上说，当信号处理函数运行中，此信号就会被屏蔽，
|
||||
* 以防止重复执行信号处理函数
|
||||
*/
|
||||
thread_from->status = SUSPEND_SIGWAIT;
|
||||
if (sigwait(&sigmask, &sig) != 0)
|
||||
{
|
||||
printf("sigwait faild, %d\n", sig);
|
||||
}
|
||||
thread_to = (thread_t *) rt_interrupt_to_thread;
|
||||
RT_ASSERT(thread_to == thread_from);
|
||||
thread_to->status = THREAD_RUNNING;
|
||||
TRACE("signal: SIGSUSPEND resume <%s>\n", thread_from->rtthread->name);
|
||||
}
|
||||
|
||||
static void thread_resume_signal_handler(int sig)
|
||||
{
|
||||
sigset_t sigmask;
|
||||
pthread_t pid = pthread_self();
|
||||
thread_t *thread_from;
|
||||
thread_t *thread_to;
|
||||
rt_thread_t tid;
|
||||
|
||||
thread_from = (thread_t *) rt_interrupt_from_thread;
|
||||
thread_to = (thread_t *) rt_interrupt_to_thread;
|
||||
|
||||
/* 注意！此时 rt_thread_self的值是to线程的值！ */
|
||||
tid = rt_thread_self();
|
||||
RT_ASSERT((thread_t *)(tid->sp) == thread_to);
|
||||
|
||||
TRACE("signal: SIGRESUME resume <%s>\n", thread_to->rtthread->name);
|
||||
}
|
||||
|
||||
static void *thread_run(void *parameter)
|
||||
{
|
||||
rt_thread_t tid;
|
||||
thread_t *thread;
|
||||
thread = THREAD_T(parameter);
|
||||
int res;
|
||||
|
||||
/* set signal mask, mask the timer! */
|
||||
signal_mask();
|
||||
|
||||
thread->status = SUSPEND_LOCK;
|
||||
TRACE("pid <%08x> stop on sem...\n", (unsigned int)(thread->pthread));
|
||||
sem_wait(&thread->sem);
|
||||
|
||||
tid = rt_thread_self();
|
||||
TRACE("pid <%08x> tid <%s> starts...\n", (unsigned int)(thread->pthread),
|
||||
tid->name);
|
||||
thread->rtthread = tid;
|
||||
thread->task(thread->para);
|
||||
TRACE("pid <%08x> tid <%s> exit...\n", (unsigned int)(thread->pthread),
|
||||
tid->name);
|
||||
thread->exit();
|
||||
|
||||
/*TODO:
|
||||
* 最后一行的pthread_exit永远没有机会执行，这是因为在threead->exit函数中
|
||||
* 会发生线程切换，并永久将此pthread线程挂起，所以更完美的解决方案是在这
|
||||
* 里发送信号给主线程，主线程中再次唤醒此线程令其自动退出。
|
||||
*/
|
||||
//sem_destroy(&thread->sem);
|
||||
|
||||
pthread_exit(NULL);
|
||||
}
|
||||
static int thread_create(
|
||||
thread_t *thread, void *task, void *parameter, void *pexit)
|
||||
{
|
||||
int res;
|
||||
pthread_attr_t attr;
|
||||
|
||||
thread->task = task;
|
||||
thread->para = parameter;
|
||||
thread->exit = pexit;
|
||||
|
||||
if (sem_init(&thread->sem, 0, 0) != 0)
|
||||
{
|
||||
printf("init thread->sem failed, exit \n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
/* No need to join the threads. */
|
||||
pthread_attr_init(&attr);
|
||||
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
||||
|
||||
/* create a posix thread */
|
||||
res = pthread_create(&thread->pthread, &attr, &thread_run, (void *)thread);
|
||||
if (res)
|
||||
{
|
||||
printf("pthread create faild, <%d>\n", res);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* resume the thread */
|
||||
static int thread_resume(thread_t *thread)
|
||||
{
|
||||
sem_post(& thread->sem);
|
||||
}
|
||||
|
||||
|
||||
rt_uint8_t *rt_hw_stack_init(
|
||||
void *pEntry,
|
||||
void *pParam,
|
||||
rt_uint8_t *pStackAddr,
|
||||
void *pExit)
|
||||
{
|
||||
thread_t *thread;
|
||||
|
||||
thread = (thread_t *)(pStackAddr - sizeof(thread_t));
|
||||
|
||||
/* set the filed to zero */
|
||||
memset(thread, 0x00, sizeof(thread_t));
|
||||
|
||||
thread_create(thread, pEntry, pParam, pExit);
|
||||
//TRACE("thread %x created\n", (unsigned int)thread_table[t].pthread);
|
||||
|
||||
return (rt_uint8_t *) thread;
|
||||
}
|
||||
|
||||
rt_base_t rt_hw_interrupt_disable(void)
|
||||
{
|
||||
long back;
|
||||
|
||||
if (ptr_int_mutex == NULL)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
pthread_mutex_lock(ptr_int_mutex);
|
||||
back = interrupt_disable_flag;
|
||||
interrupt_disable_flag = INTERRUPT_DISABLE;
|
||||
|
||||
/*TODO: It may need to unmask the signal */
|
||||
return back;
|
||||
}
|
||||
|
||||
void rt_hw_interrupt_enable(rt_base_t level)
|
||||
{
|
||||
struct rt_thread * tid;
|
||||
pthread_t pid;
|
||||
thread_t *thread_from;
|
||||
thread_t *thread_to;
|
||||
|
||||
if (ptr_int_mutex == NULL)
|
||||
return;
|
||||
|
||||
interrupt_disable_flag = level;
|
||||
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
/* 如果已经中断仍然关闭 */
|
||||
if (interrupt_disable_flag)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
/* 表示当前中断打开, 检查是否有挂起的中断 */
|
||||
pthread_mutex_lock(ptr_int_mutex);
|
||||
if (!cpu_pending_interrupts)
|
||||
{
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
return;
|
||||
}
|
||||
|
||||
thread_from = (thread_t *) rt_interrupt_from_thread;
|
||||
thread_to = (thread_t *) rt_interrupt_to_thread;
|
||||
tid = rt_thread_self();
|
||||
pid = pthread_self();
|
||||
|
||||
//pid != mainthread_pid &&
|
||||
if (thread_from->pthread == pid)
|
||||
{
|
||||
/* 注意这段代码是在RTT普通线程函数总函数中执行的，
|
||||
* from线程就是当前rtt线程 */
|
||||
/* 需要检查是否有挂起的中断需要处理 */
|
||||
TRACE("conswitch: P in pid<%x> ,suspend <%s>, resume <%s>!\n",
|
||||
(unsigned int)pid,
|
||||
thread_from->rtthread->name,
|
||||
thread_to->rtthread->name);
|
||||
|
||||
cpu_pending_interrupts --;
|
||||
thread_from->status = SUSPEND_LOCK;
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
/* 唤醒被挂起的线程 */
|
||||
if (thread_to->status == SUSPEND_SIGWAIT)
|
||||
{
|
||||
pthread_kill(thread_to->pthread, MSG_RESUME);
|
||||
}
|
||||
else if (thread_to->status == SUSPEND_LOCK)
|
||||
{
|
||||
sem_post(& thread_to->sem);
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("conswitch: should not be here! %d\n", __LINE__);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
/* 挂起当前的线程 */
|
||||
sem_wait(& thread_from->sem);
|
||||
pthread_mutex_lock(ptr_int_mutex);
|
||||
thread_from->status = THREAD_RUNNING;
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* 注意这段代码可能在多种情况下运行：
|
||||
* 1. 在system tick中执行， 即主线程的SIGALRM信号处理函数中执行
|
||||
* 2. 其他线程中调用，比如用于获取按键输入的线程中调用
|
||||
*/
|
||||
TRACE("conswitch: S in pid<%x> ,suspend <%s>, resume <%s>!\n",
|
||||
(unsigned int)pid,
|
||||
thread_from->rtthread->name,
|
||||
thread_to->rtthread->name);
|
||||
|
||||
cpu_pending_interrupts --;
|
||||
|
||||
/* 需要把解锁函数放在前面,以防止死锁？？ */
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
|
||||
/* 挂起from线程 */
|
||||
pthread_kill(thread_from->pthread, MSG_SUSPEND);
|
||||
/* 注意：这里需要确保线程被挂起了, 否则312行就很可能就会报错退出
|
||||
* 因为这里挂起线程是通过信号实现的，所以一定要确保线程挂起才行 */
|
||||
while (thread_from->status != SUSPEND_SIGWAIT)
|
||||
{
|
||||
sched_yield();
|
||||
}
|
||||
|
||||
/* 唤醒to线程 */
|
||||
if (thread_to->status == SUSPEND_SIGWAIT)
|
||||
{
|
||||
pthread_kill(thread_to->pthread, MSG_RESUME);
|
||||
}
|
||||
else if (thread_to->status == SUSPEND_LOCK)
|
||||
{
|
||||
sem_post(& thread_to->sem);
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("conswitch: should not be here! %d\n", __LINE__);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
}
|
||||
/*TODO: It may need to unmask the signal */
|
||||
}
|
||||
|
||||
void rt_hw_context_switch_interrupt(rt_uint32_t from,
|
||||
rt_uint32_t to)
|
||||
{
|
||||
rt_hw_context_switch(from, to);
|
||||
}
|
||||
|
||||
void rt_hw_context_switch(rt_uint32_t from,
|
||||
rt_uint32_t to)
|
||||
{
|
||||
struct rt_thread * tid;
|
||||
pthread_t pid;
|
||||
thread_t *thread_from;
|
||||
thread_t *thread_to;
|
||||
|
||||
RT_ASSERT(from != to);
|
||||
|
||||
#if 0
|
||||
//TODO: 可能还需要考虑嵌套切换的情况
|
||||
if (rt_thread_switch_interrupt_flag != 1)
|
||||
{
|
||||
rt_thread_switch_interrupt_flag = 1;
|
||||
|
||||
// set rt_interrupt_from_thread
|
||||
rt_interrupt_from_thread = *((rt_uint32_t *)from);
|
||||
}
|
||||
#endif
|
||||
pthread_mutex_lock(ptr_int_mutex);
|
||||
rt_interrupt_from_thread = *((rt_uint32_t *)from);
|
||||
rt_interrupt_to_thread = *((rt_uint32_t *)to);
|
||||
|
||||
/* 这个函数只是并不会真正执行中断处理函数，而只是简单的
|
||||
* 设置一下中断挂起标志位
|
||||
*/
|
||||
cpu_pending_interrupts ++;
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
}
|
||||
|
||||
void rt_hw_context_switch_to(rt_uint32_t to)
|
||||
{
|
||||
//set to thread
|
||||
rt_interrupt_to_thread = *((rt_uint32_t *)(to));
|
||||
|
||||
//clear from thread
|
||||
rt_interrupt_from_thread = 0;
|
||||
|
||||
//set interrupt to 1
|
||||
rt_thread_switch_interrupt_flag = 0; //TODO: 还需要考虑这个嵌套切换的情况
|
||||
|
||||
/* enable interrupt
|
||||
* note: NOW, there are only one interrupt in simposix: system tick */
|
||||
rt_hw_interrupt_enable(0);
|
||||
|
||||
//start the main thread scheduler
|
||||
mainthread_scheduler();
|
||||
|
||||
//never reach here!
|
||||
return;
|
||||
}
|
||||
|
||||
static int mainthread_scheduler(void)
|
||||
{
|
||||
int i, res, sig;
|
||||
thread_t *thread_from;
|
||||
thread_t *thread_to;
|
||||
pthread_mutex_t mutex;
|
||||
pthread_mutexattr_t mutexattr;
|
||||
sigset_t sigmask, oldmask;
|
||||
|
||||
/* save the main thread id */
|
||||
mainthread_pid = pthread_self();
|
||||
TRACE("pid <%08x> mainthread\n", (unsigned int)(mainthread_pid));
|
||||
|
||||
/* 屏蔽suspend信号和resume信号 */
|
||||
sigemptyset(&sigmask);
|
||||
sigaddset(&sigmask, MSG_SUSPEND);
|
||||
sigaddset(&sigmask, MSG_RESUME);
|
||||
pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
|
||||
|
||||
sigemptyset(&sigmask);
|
||||
sigaddset(&sigmask, SIGALRM);
|
||||
|
||||
/* install signal handler of system tick */
|
||||
signal_install(SIGALRM, mthread_signal_tick);
|
||||
/* install signal handler used to suspend/resume threads */
|
||||
signal_install(MSG_SUSPEND, thread_suspend_signal_handler);
|
||||
signal_install(MSG_RESUME, thread_resume_signal_handler);
|
||||
|
||||
/* create a mutex and condition val, used to indicate interrupts occrue */
|
||||
ptr_int_mutex = &mutex;
|
||||
pthread_mutexattr_init(&mutexattr);
|
||||
pthread_mutexattr_settype(&mutexattr, PTHREAD_MUTEX_RECURSIVE_NP);
|
||||
pthread_mutex_init(ptr_int_mutex, &mutexattr);
|
||||
|
||||
/* start timer */
|
||||
start_sys_timer();
|
||||
|
||||
thread_to = (thread_t *) rt_interrupt_to_thread;
|
||||
thread_resume(thread_to);
|
||||
for (;;)
|
||||
{
|
||||
#if 1
|
||||
if (sigwait(&sigmask, &sig) != 0)
|
||||
{
|
||||
printf("mthread: sigwait get unexpected sig %d\n", sig);
|
||||
}
|
||||
#else
|
||||
pause();
|
||||
#endif
|
||||
TRACE("mthread:got sig %d\n", sig);
|
||||
/* signal mask sigalrm 屏蔽SIGALRM信号 */
|
||||
pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
|
||||
|
||||
// if (systick_signal_flag != 0)
|
||||
if (pthread_mutex_trylock(ptr_int_mutex) == 0)
|
||||
{
|
||||
tick_interrupt_isr();
|
||||
// systick_signal_flag = 0;
|
||||
pthread_mutex_unlock(ptr_int_mutex);
|
||||
}
|
||||
else
|
||||
{
|
||||
TRACE("try lock failed.\n");
|
||||
}
|
||||
|
||||
/* 开启SIGALRM信号 */
|
||||
pthread_sigmask(SIG_UNBLOCK, &sigmask, &oldmask);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Setup the systick timer to generate the tick interrupts at the required
|
||||
* frequency.
|
||||
*/
|
||||
static void start_sys_timer(void)
|
||||
{
|
||||
struct itimerval itimer, oitimer;
|
||||
int us;
|
||||
|
||||
RT_ASSERT(RT_TICK_PER_SECOND <= 1000000 || RT_TICK_PER_SECOND >= 1);
|
||||
|
||||
us = 1000000 / RT_TICK_PER_SECOND - 1;
|
||||
|
||||
TRACE("start system tick!\n");
|
||||
/* Initialise the structure with the current timer information. */
|
||||
if (0 != getitimer(TIMER_TYPE, &itimer))
|
||||
{
|
||||
TRACE("get timer failed.\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
/* Set the interval between timer events. */
|
||||
itimer.it_interval.tv_sec = 0;
|
||||
itimer.it_interval.tv_usec = us;
|
||||
/* Set the current count-down. */
|
||||
itimer.it_value.tv_sec = 0;
|
||||
itimer.it_value.tv_usec = us;
|
||||
|
||||
/* Set-up the timer interrupt. */
|
||||
if (0 != setitimer(TIMER_TYPE, &itimer, &oitimer))
|
||||
{
|
||||
TRACE("set timer failed.\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
static void mthread_signal_tick(int sig)
|
||||
{
|
||||
int res;
|
||||
pthread_t pid = pthread_self();
|
||||
|
||||
if (sig == SIGALRM)
|
||||
{
|
||||
TRACE("pid <%x> signal: SIGALRM enter!\n", (unsigned int)pid);
|
||||
//systick_signal_flag = 1;
|
||||
TRACE("pid <%x> signal: SIGALRM leave!\n", (unsigned int)pid);
|
||||
}
|
||||
else
|
||||
{
|
||||
TRACE("got an unexpected signal <%d>\n", sig);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
/* isr return value: 1, should not be masked, if 0, can be masked */
|
||||
static int tick_interrupt_isr(void)
|
||||
{
|
||||
TRACE("isr: systick enter!\n");
|
||||
/* enter interrupt */
|
||||
rt_interrupt_enter();
|
||||
|
||||
rt_tick_increase();
|
||||
|
||||
/* leave interrupt */
|
||||
rt_interrupt_leave();
|
||||
|
||||
TRACE("isr: systick leave!\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue