Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

2026-07-06 11:30:13 +08:00
commit e76462eeb7
3451 changed files with 1415300 additions and 0 deletions
--- a/sdk/lib/fs/fatfs/syscall.c
+++ b/sdk/lib/fs/fatfs/syscall.c
@@ -0,0 +1,148 @@
+/*------------------------------------------------------------------------*/
+/* Sample code of OS dependent controls for FatFs                         */
+/* (C)ChaN, 2012                                                          */
+/*------------------------------------------------------------------------*/
+
+#include <stdlib.h>		/* ANSI process controls */
+#include <stdio.h>
+
+#include "ff.h"
+#include "csi_kernel.h"
+#include "osal/string.h"
+//#include "osal/osal_sema.h"
+//#include "osal/osal_alloc.h"
+
+
+
+#if FF_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 due to any error */
+	BYTE vol,			/* Corresponding logical drive being processed */
+	FF_SYNC_t *sobj		/* Pointer to return the created sync object */
+)
+{
+	
+	int ret = 1;
+	static os_mutex_t *sem[FF_VOLUMES];	/* FreeRTOS */
+
+	//只会申请一次,不考虑会失败
+	if(!sem[vol])
+	{
+		sem[vol] = os_zalloc(sizeof(os_mutex_t));
+		int mutex_ret = os_mutex_init(sem[vol]);
+		if(mutex_ret)
+		{
+			ret = 0;
+			os_free(sem[vol]);
+			sem[vol] = NULL;
+		}
+		else
+		{
+			*sobj = sem[vol];
+		}
+	}
+	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 */
+	FF_SYNC_t sobj		/* Sync object tied to the logical drive to be deleted */
+)
+{
+	int ret = 1;
+	//不移除信号量
+	return ret;
+
+}
+
+
+
+/*------------------------------------------------------------------------*/
+/* 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 */
+	FF_SYNC_t sobj	/* Sync object to wait */
+)
+{
+	int ret;
+	ret = os_mutex_lock(sobj,FF_FS_TIMEOUT);
+	if(!ret)
+	{
+		ret = 1;
+	}
+	else
+	{
+		ret = 0;
+	}
+	return ret;
+}
+
+
+
+/*------------------------------------------------------------------------*/
+/* Release Grant to Access the Volume                                     */
+/*------------------------------------------------------------------------*/
+/* This function is called on leaving file functions to unlock the volume.
+*/
+
+void ff_rel_grant (
+	FF_SYNC_t sobj	/* Sync object to be signaled */
+)
+{
+	os_mutex_unlock(sobj);
+}
+
+#endif
+
+
+
+
+#if FF_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 */
+)
+{
+	//_os_printf("msize:%d\r\n",msize);
+	return os_malloc_psram(msize);	/* Allocate a memory block with POSIX API */
+}
+
+
+/*------------------------------------------------------------------------*/
+/* Free a memory block                                                    */
+/*------------------------------------------------------------------------*/
+
+
+void ff_memfree (
+	void* mblock	/* Pointer to the memory block to free */
+)
+{
+	os_free_psram(mblock);
+}
+
+#endif