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楼主 |
发表于 2019-11-18 15:46:04
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ffsystem没有RTOS2的函数,这里发下
- const osMutexAttr_t Mutex[FF_VOLUMES]; /* Table of CMSIS-RTOS2 mutex */
- int ff_cre_syncobj ( /* 1:Function succeeded, 0:Could not create the sync object */
- BYTE vol, /* Corresponding volume (logical drive number) */
- FF_SYNC_t* sobj /* Pointer to return the created sync object */
- )
- {
- /* Win32 */
- // *sobj = CreateMutex(NULL, FALSE, NULL);
- // return (int)(*sobj != INVALID_HANDLE_VALUE);
- /* uITRON */
- // T_CSEM csem = {TA_TPRI,1,1};
- // *sobj = acre_sem(&csem);
- // return (int)(*sobj > 0);
- /* uC/OS-II */
- // OS_ERR err;
- // *sobj = OSMutexCreate(0, &err);
- // return (int)(err == OS_NO_ERR);
- /* FreeRTOS */
- // *sobj = xSemaphoreCreateMutex();
- // return (int)(*sobj != NULL);
- /* CMSIS-RTOS2 */
- *sobj = osMutexNew(&Mutex[vol]);
- return (int)(*sobj != NULL);
- }
- /*------------------------------------------------------------------------*/
- /* Delete a Synchronization Object */
- /*------------------------------------------------------------------------*/
- /* This function is called in f_mount() function to delete a synchronization
- / object that created with ff_cre_syncobj() function. When a 0 is returned,
- / the f_mount() function fails with FR_INT_ERR.
- */
- int ff_del_syncobj ( /* 1:Function succeeded, 0:Could not delete due to an error */
- FF_SYNC_t sobj /* Sync object tied to the logical drive to be deleted */
- )
- {
- /* Win32 */
- // return (int)CloseHandle(sobj);
- /* uITRON */
- // return (int)(del_sem(sobj) == E_OK);
- /* uC/OS-II */
- // OS_ERR err;
- // OSMutexDel(sobj, OS_DEL_ALWAYS, &err);
- // return (int)(err == OS_NO_ERR);
- // /* FreeRTOS */
- // vSemaphoreDelete(sobj);
- // return 1;
- /* CMSIS-RTOS2 */
- return (int)(osMutexDelete(sobj) == osOK);
- }
- /*------------------------------------------------------------------------*/
- /* Request Grant to Access the Volume */
- /*------------------------------------------------------------------------*/
- /* This function is called on entering file functions to lock the volume.
- / When a 0 is returned, the file function fails with FR_TIMEOUT.
- */
- int ff_req_grant ( /* 1:Got a grant to access the volume, 0:Could not get a grant */
- FF_SYNC_t sobj /* Sync object to wait */
- )
- {
- /* Win32 */
- // return (int)(WaitForSingleObject(sobj, FF_FS_TIMEOUT) == WAIT_OBJECT_0);
- /* uITRON */
- // return (int)(wai_sem(sobj) == E_OK);
- /* uC/OS-II */
- // OS_ERR err;
- // OSMutexPend(sobj, FF_FS_TIMEOUT, &err));
- // return (int)(err == OS_NO_ERR);
- /* FreeRTOS */
- // return (int)(xSemaphoreTake(sobj, FF_FS_TIMEOUT) == pdTRUE);
- /* CMSIS-RTOS2 */
- return (int)(osMutexAcquire(sobj, FF_FS_TIMEOUT) == osOK);
- }
- /*------------------------------------------------------------------------*/
- /* Release Grant to Access the Volume */
- /*------------------------------------------------------------------------*/
- /* This function is called on leaving file functions to unlock the volume.
- */
- void ff_rel_grant (
- FF_SYNC_t sobj /* Sync object to be signaled */
- )
- {
- /* Win32 */
- // ReleaseMutex(sobj);
- /* uITRON */
- // sig_sem(sobj);
- /* uC/OS-II */
- // OSMutexPost(sobj);
- /* FreeRTOS */
- // xSemaphoreGive(sobj);
- /* CMSIS-RTOS2 */
- osMutexRelease(sobj);
- }
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