Initial firmware commit.

firmware/chibios-portapack/os/various/fatfs_bindings/fatfs_syscall.c

@@ -0,0 +1,84 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/*------------------------------------------------------------------------*/
+/* Sample code of OS dependent controls for FatFs R0.08b                  */
+/* (C)ChaN, 2011                                                          */
+/*------------------------------------------------------------------------*/
+
+#include "ch.h"
+#include "ff.h"
+
+#if _FS_REENTRANT
+/*------------------------------------------------------------------------*/
+/* Static array of Synchronization Objects                                */
+/*------------------------------------------------------------------------*/
+static Semaphore ff_sem[_VOLUMES];
+
+/*------------------------------------------------------------------------*/
+/* Create a Synchronization Object                                        */
+/*------------------------------------------------------------------------*/
+int ff_cre_syncobj(BYTE vol, _SYNC_t *sobj) {
+
+  *sobj = &ff_sem[vol];
+  chSemInit(*sobj, 1);
+  return TRUE;
+}
+
+/*------------------------------------------------------------------------*/
+/* Delete a Synchronization Object                                        */
+/*------------------------------------------------------------------------*/
+int ff_del_syncobj(_SYNC_t sobj) {
+
+  chSemReset(sobj, 0);
+  return TRUE;
+}
+
+/*------------------------------------------------------------------------*/
+/* Request Grant to Access the Volume                                     */
+/*------------------------------------------------------------------------*/
+int ff_req_grant(_SYNC_t sobj) {
+
+  msg_t msg = chSemWaitTimeout(sobj, (systime_t)_FS_TIMEOUT);
+  return msg == RDY_OK;
+}
+
+/*------------------------------------------------------------------------*/
+/* Release Grant to Access the Volume                                     */
+/*------------------------------------------------------------------------*/
+void ff_rel_grant(_SYNC_t sobj) {
+
+  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 */