75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013-2017 Damien P. George
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* Parts of this file are (C)ChaN, 2014, from FatFs option/syscall.c
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/runtime.h"
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#include "lib/oofatfs/ff.h"
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#include "lib/timeutils/timeutils.h"
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#include "mods/pybrtc.h"
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#if _FS_REENTRANT
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// Create a Synchronization Object
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// This function is called in f_mount() function to create a new
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// synchronization object, such as semaphore and mutex.
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// A return of 0 indicates failure, and then f_mount() fails with FR_INT_ERR.
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int ff_cre_syncobj(FATFS *fatfs, _SYNC_t *sobj) {
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vSemaphoreCreateBinary((*sobj));
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return (int)(*sobj != NULL);
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}
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// Delete a Synchronization Object
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// This function is called in f_mount() function to delete a synchronization
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// object that created with ff_cre_syncobj function.
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// A return of 0 indicates failure, and then f_mount() fails with FR_INT_ERR.
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int ff_del_syncobj(_SYNC_t sobj) {
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vSemaphoreDelete(sobj);
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return 1;
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}
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// Request Grant to Access the Volume
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// This function is called on entering file functions to lock the volume.
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// When a 0 is returned, the file function fails with FR_TIMEOUT.
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int ff_req_grant(_SYNC_t sobj) {
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return (int)(xSemaphoreTake(sobj, _FS_TIMEOUT) == pdTRUE);
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}
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// Release Grant to Access the Volume
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// This function is called on leaving file functions to unlock the volume.
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void ff_rel_grant(_SYNC_t sobj) {
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xSemaphoreGive(sobj);
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}
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#endif
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DWORD get_fattime(void) {
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timeutils_struct_time_t tm;
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timeutils_seconds_since_2000_to_struct_time(pyb_rtc_get_seconds(), &tm);
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return ((tm.tm_year - 1980) << 25) | ((tm.tm_mon) << 21) |
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((tm.tm_mday) << 16) | ((tm.tm_hour) << 11) |
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((tm.tm_min) << 5) | (tm.tm_sec >> 1);
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}
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