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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-04-21 17:26:34 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-04-21 17:26:34 +0000 |
| commit | 31fa09fa03a56d51ee4a9fdbf9eb70262beccb57 (patch) | |
| tree | ef6d46381cf22af6c11b99fbb58ce63b93bad13c /os/various/fatfs_bindings/fatfs_syscall.c | |
| parent | 37f359fbaae4d082935b752618461cf73076d9c0 (diff) | |
| download | ChibiOS-31fa09fa03a56d51ee4a9fdbf9eb70262beccb57.tar.gz ChibiOS-31fa09fa03a56d51ee4a9fdbf9eb70262beccb57.tar.bz2 ChibiOS-31fa09fa03a56d51ee4a9fdbf9eb70262beccb57.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4118 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/various/fatfs_bindings/fatfs_syscall.c')
| -rw-r--r-- | os/various/fatfs_bindings/fatfs_syscall.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/os/various/fatfs_bindings/fatfs_syscall.c b/os/various/fatfs_bindings/fatfs_syscall.c new file mode 100644 index 000000000..dbfb264b6 --- /dev/null +++ b/os/various/fatfs_bindings/fatfs_syscall.c @@ -0,0 +1,88 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*------------------------------------------------------------------------*/
+/* Sample code of OS dependent controls for FatFs R0.08b */
+/* (C)ChaN, 2011 */
+/*------------------------------------------------------------------------*/
+
+#include "ch.h"
+#include "ff.h"
+
+MEMORYPOOL_DECL(fs_sem_pool, sizeof(Semaphore), chCoreAlloc);
+
+#if _FS_REENTRANT
+/*------------------------------------------------------------------------*/
+/* Create a Synchronization Object */
+/*------------------------------------------------------------------------*/
+int ff_cre_syncobj(_SYNC_t *sobj) {
+
+ *sobj = chPoolAlloc(&fs_sem_pool);
+ if (*sobj == NULL)
+ return FALSE;
+ chSemInit(*sobj, 1);
+ return TRUE;
+}
+
+/*------------------------------------------------------------------------*/
+/* Delete a Synchronization Object */
+/*------------------------------------------------------------------------*/
+int ff_del_syncobj(_SYNC_t sobj) {
+
+ chSemReset(sobj, 0);
+ chPoolFree(&fs_sem_pool, sobj);
+ return TRUE;
+}
+
+/*------------------------------------------------------------------------*/
+/* Request Grant to Access the Volume */
+/*------------------------------------------------------------------------*/
+int ff_req_grant(_SYNC_t sobj) {
+
+ msg_t msg = chSemWaitTimeout(sobj, (systick_t)_FS_TIMEOUT);
+ return msg == RDY_OK;
+}
+
+/*------------------------------------------------------------------------*/
+/* Release Grant to Access the Volume */
+/*------------------------------------------------------------------------*/
+void ff_rel_grant(_SYNC_t sob) {
+
+ chSemSignal(sobj);
+}
+#endif /* _FS_REENTRANT */
+
+#if _USE_LFN == 3 /* LFN with a working buffer on the heap */
+/*------------------------------------------------------------------------*/
+/* Allocate a memory block */
+/*------------------------------------------------------------------------*/
+void *ff_memalloc(UINT size) {
+
+ return chHeapAlloc(NULL, size);
+}
+
+/*------------------------------------------------------------------------*/
+/* Free a memory block */
+/*------------------------------------------------------------------------*/
+void ff_memfree(void *mblock) {
+
+ chHeapFree(mblock);
+}
+#endif /* _USE_LFN == 3 */
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