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Diffstat (limited to 'src/ff/ffsystem.c')
| -rw-r--r-- | src/ff/ffsystem.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/src/ff/ffsystem.c b/src/ff/ffsystem.c deleted file mode 100644 index 2657fe2..0000000 --- a/src/ff/ffsystem.c +++ /dev/null @@ -1,208 +0,0 @@ -/*------------------------------------------------------------------------*/ -/* A Sample Code of User Provided OS Dependent Functions for FatFs */ -/*------------------------------------------------------------------------*/ - -#include "ff.h" - - -#if FF_USE_LFN == 3 /* Use dynamic memory allocation */ - -/*------------------------------------------------------------------------*/ -/* Allocate/Free a Memory Block */ -/*------------------------------------------------------------------------*/ - -#include <stdlib.h> /* with POSIX API */ - - -void* ff_memalloc ( /* Returns pointer to the allocated memory block (null if not enough core) */ - UINT msize /* Number of bytes to allocate */ -) -{ - return malloc((size_t)msize); /* Allocate a new memory block */ -} - - -void ff_memfree ( - void* mblock /* Pointer to the memory block to free (no effect if null) */ -) -{ - free(mblock); /* Free the memory block */ -} - -#endif - - - - -#if FF_FS_REENTRANT /* Mutal exclusion */ -/*------------------------------------------------------------------------*/ -/* Definitions of Mutex */ -/*------------------------------------------------------------------------*/ - -#define OS_TYPE 0 /* 0:Win32, 1:uITRON4.0, 2:uC/OS-II, 3:FreeRTOS, 4:CMSIS-RTOS */ - - -#if OS_TYPE == 0 /* Win32 */ -#include <windows.h> -static HANDLE Mutex[FF_VOLUMES + 1]; /* Table of mutex handle */ - -#elif OS_TYPE == 1 /* uITRON */ -#include "itron.h" -#include "kernel.h" -static mtxid Mutex[FF_VOLUMES + 1]; /* Table of mutex ID */ - -#elif OS_TYPE == 2 /* uc/OS-II */ -#include "includes.h" -static OS_EVENT *Mutex[FF_VOLUMES + 1]; /* Table of mutex pinter */ - -#elif OS_TYPE == 3 /* FreeRTOS */ -#include "FreeRTOS.h" -#include "semphr.h" -static SemaphoreHandle_t Mutex[FF_VOLUMES + 1]; /* Table of mutex handle */ - -#elif OS_TYPE == 4 /* CMSIS-RTOS */ -#include "cmsis_os.h" -static osMutexId Mutex[FF_VOLUMES + 1]; /* Table of mutex ID */ - -#endif - - - -/*------------------------------------------------------------------------*/ -/* Create a Mutex */ -/*------------------------------------------------------------------------*/ -/* This function is called in f_mount function to create a new mutex -/ or semaphore for the volume. When a 0 is returned, the f_mount function -/ fails with FR_INT_ERR. -*/ - -int ff_mutex_create ( /* Returns 1:Function succeeded or 0:Could not create the mutex */ - int vol /* Mutex ID: Volume mutex (0 to FF_VOLUMES - 1) or system mutex (FF_VOLUMES) */ -) -{ -#if OS_TYPE == 0 /* Win32 */ - Mutex[vol] = CreateMutex(NULL, FALSE, NULL); - return (int)(Mutex[vol] != INVALID_HANDLE_VALUE); - -#elif OS_TYPE == 1 /* uITRON */ - T_CMTX cmtx = {TA_TPRI,1}; - - Mutex[vol] = acre_mtx(&cmtx); - return (int)(Mutex[vol] > 0); - -#elif OS_TYPE == 2 /* uC/OS-II */ - OS_ERR err; - - Mutex[vol] = OSMutexCreate(0, &err); - return (int)(err == OS_NO_ERR); - -#elif OS_TYPE == 3 /* FreeRTOS */ - Mutex[vol] = xSemaphoreCreateMutex(); - return (int)(Mutex[vol] != NULL); - -#elif OS_TYPE == 4 /* CMSIS-RTOS */ - osMutexDef(cmsis_os_mutex); - - Mutex[vol] = osMutexCreate(osMutex(cmsis_os_mutex)); - return (int)(Mutex[vol] != NULL); - -#endif -} - - -/*------------------------------------------------------------------------*/ -/* Delete a Mutex */ -/*------------------------------------------------------------------------*/ -/* This function is called in f_mount function to delete a mutex or -/ semaphore of the volume created with ff_mutex_create function. -*/ - -void ff_mutex_delete ( /* Returns 1:Function succeeded or 0:Could not delete due to an error */ - int vol /* Mutex ID: Volume mutex (0 to FF_VOLUMES - 1) or system mutex (FF_VOLUMES) */ -) -{ -#if OS_TYPE == 0 /* Win32 */ - CloseHandle(Mutex[vol]); - -#elif OS_TYPE == 1 /* uITRON */ - del_mtx(Mutex[vol]); - -#elif OS_TYPE == 2 /* uC/OS-II */ - OS_ERR err; - - OSMutexDel(Mutex[vol], OS_DEL_ALWAYS, &err); - -#elif OS_TYPE == 3 /* FreeRTOS */ - vSemaphoreDelete(Mutex[vol]); - -#elif OS_TYPE == 4 /* CMSIS-RTOS */ - osMutexDelete(Mutex[vol]); - -#endif -} - - -/*------------------------------------------------------------------------*/ -/* Request a Grant to Access the Volume */ -/*------------------------------------------------------------------------*/ -/* This function is called on enter file functions to lock the volume. -/ When a 0 is returned, the file function fails with FR_TIMEOUT. -*/ - -int ff_mutex_take ( /* Returns 1:Succeeded or 0:Timeout */ - int vol /* Mutex ID: Volume mutex (0 to FF_VOLUMES - 1) or system mutex (FF_VOLUMES) */ -) -{ -#if OS_TYPE == 0 /* Win32 */ - return (int)(WaitForSingleObject(Mutex[vol], FF_FS_TIMEOUT) == WAIT_OBJECT_0); - -#elif OS_TYPE == 1 /* uITRON */ - return (int)(tloc_mtx(Mutex[vol], FF_FS_TIMEOUT) == E_OK); - -#elif OS_TYPE == 2 /* uC/OS-II */ - OS_ERR err; - - OSMutexPend(Mutex[vol], FF_FS_TIMEOUT, &err)); - return (int)(err == OS_NO_ERR); - -#elif OS_TYPE == 3 /* FreeRTOS */ - return (int)(xSemaphoreTake(Mutex[vol], FF_FS_TIMEOUT) == pdTRUE); - -#elif OS_TYPE == 4 /* CMSIS-RTOS */ - return (int)(osMutexWait(Mutex[vol], FF_FS_TIMEOUT) == osOK); - -#endif -} - - - -/*------------------------------------------------------------------------*/ -/* Release a Grant to Access the Volume */ -/*------------------------------------------------------------------------*/ -/* This function is called on leave file functions to unlock the volume. -*/ - -void ff_mutex_give ( - int vol /* Mutex ID: Volume mutex (0 to FF_VOLUMES - 1) or system mutex (FF_VOLUMES) */ -) -{ -#if OS_TYPE == 0 /* Win32 */ - ReleaseMutex(Mutex[vol]); - -#elif OS_TYPE == 1 /* uITRON */ - unl_mtx(Mutex[vol]); - -#elif OS_TYPE == 2 /* uC/OS-II */ - OSMutexPost(Mutex[vol]); - -#elif OS_TYPE == 3 /* FreeRTOS */ - xSemaphoreGive(Mutex[vol]); - -#elif OS_TYPE == 4 /* CMSIS-RTOS */ - osMutexRelease(Mutex[vol]); - -#endif -} - -#endif /* FF_FS_REENTRANT */ - |