flipperzero-firmware/firmware/targets/f7/fatfs/syscall.c
あく e3c7201a20
Furi: core refactoring and CMSIS removal part 2 (#1410)
* Furi: rename and move core
* Furi: drop CMSIS_OS header and unused api, partially refactor and cleanup the rest
* Furi: CMSIS_OS drop and refactoring.
* Furi: refactoring, remove cmsis legacy
* Furi: fix incorrect assert on queue deallocation, cleanup timer
* Furi: improve delay api, get rid of floats
* hal: dropped furi_hal_crc
* Furi: move DWT based delay to cortex HAL
* Furi: update core documentation

Co-authored-by: hedger <hedger@nanode.su>
2022-07-20 13:56:33 +03:00

117 lines
4.5 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 = furi_mutex_alloc(FuriMutexTypeNormal);
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 */
) {
furi_mutex_free(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(furi_mutex_acquire(sobj, _FS_TIMEOUT) == FuriStatusOk) {
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 */
) {
furi_mutex_release(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