c1c069e95f
* move f3-1 to f4, remove f3 * remove f2 * remove firmware F3 for pipeline * remove patch for F4 makefile * fix fw makefile * migrate bootloader to f4
139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/*------------------------------------------------------------------------*/
|
|
/* Sample code of OS dependent controls for FatFs */
|
|
/* (C)ChaN, 2014 */
|
|
/* Portions COPYRIGHT 2017 STMicroelectronics */
|
|
/* Portions Copyright (C) 2014, ChaN, all right reserved */
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2017 STMicroelectronics. All rights reserved.
|
|
*
|
|
* This software component is licensed by ST under BSD 3-Clause license,
|
|
* the "License"; You may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at:
|
|
* opensource.org/licenses/BSD-3-Clause
|
|
*
|
|
******************************************************************************
|
|
**/
|
|
|
|
|
|
|
|
#include "fatfs/ff.h"
|
|
|
|
|
|
#if _FS_REENTRANT
|
|
/*------------------------------------------------------------------------*/
|
|
/* Create a Synchronization Object */
|
|
/*------------------------------------------------------------------------*/
|
|
/* This function is called in f_mount() function to create a new
|
|
/ synchronization object, such as semaphore and mutex. When a 0 is returned,
|
|
/ the f_mount() function fails with FR_INT_ERR.
|
|
*/
|
|
|
|
int ff_cre_syncobj ( /* 1:Function succeeded, 0:Could not create the sync object */
|
|
BYTE vol, /* Corresponding volume (logical drive number) */
|
|
_SYNC_t *sobj /* Pointer to return the created sync object */
|
|
)
|
|
{
|
|
|
|
int ret;
|
|
|
|
//osSemaphoreDef(SEM);
|
|
//*sobj = osSemaphoreCreate(osSemaphore(SEM), 1);
|
|
*sobj = osMutexNew(NULL);
|
|
ret = (*sobj != NULL);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
/* 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 any error */
|
|
_SYNC_t sobj /* Sync object tied to the logical drive to be deleted */
|
|
)
|
|
{
|
|
osMutexDelete(sobj);
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
/* 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 */
|
|
_SYNC_t sobj /* Sync object to wait */
|
|
)
|
|
{
|
|
int ret = 0;
|
|
|
|
if(osMutexAcquire(sobj, _FS_TIMEOUT) == osOK) {
|
|
ret = 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
/* Release Grant to Access the Volume */
|
|
/*------------------------------------------------------------------------*/
|
|
/* This function is called on leaving file functions to unlock the volume.
|
|
*/
|
|
|
|
void ff_rel_grant (
|
|
_SYNC_t sobj /* Sync object to be signaled */
|
|
)
|
|
{
|
|
osMutexRelease(sobj);
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if _USE_LFN == 3 /* LFN with a working buffer on the heap */
|
|
/*------------------------------------------------------------------------*/
|
|
/* Allocate a memory block */
|
|
/*------------------------------------------------------------------------*/
|
|
/* If a NULL is returned, the file function fails with FR_NOT_ENOUGH_CORE.
|
|
*/
|
|
|
|
void* ff_memalloc ( /* Returns pointer to the allocated memory block */
|
|
UINT msize /* Number of bytes to allocate */
|
|
)
|
|
{
|
|
return ff_malloc(msize); /* Allocate a new memory block with POSIX API */
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
/* Free a memory block */
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
void ff_memfree (
|
|
void* mblock /* Pointer to the memory block to free */
|
|
)
|
|
{
|
|
ff_free(mblock); /* Discard the memory block with POSIX API */
|
|
}
|
|
|
|
#endif
|