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-rw-r--r--src/osal/osal.h21
1 files changed, 14 insertions, 7 deletions
diff --git a/src/osal/osal.h b/src/osal/osal.h
index 9d11866df..afa3826fc 100644
--- a/src/osal/osal.h
+++ b/src/osal/osal.h
@@ -33,17 +33,24 @@
#include "common/tusb_common.h"
-// Return immediately
-#define OSAL_TIMEOUT_NOTIMEOUT (0)
-// Default timeout
-#define OSAL_TIMEOUT_NORMAL (10)
-// Wait forever
-#define OSAL_TIMEOUT_WAIT_FOREVER (UINT32_MAX)
+typedef void (*osal_task_func_t)( void * );
+// Timeout
+#define OSAL_TIMEOUT_NOTIMEOUT (0) // Return immediately
+#define OSAL_TIMEOUT_NORMAL (10) // Default timeout
+#define OSAL_TIMEOUT_WAIT_FOREVER (UINT32_MAX) // Wait forever
#define OSAL_TIMEOUT_CONTROL_XFER OSAL_TIMEOUT_WAIT_FOREVER
-typedef void (*osal_task_func_t)( void * );
+// Mutex is required when using a preempted RTOS or MCU has multiple cores
+#if (CFG_TUSB_OS == OPT_OS_NONE) && !TUP_MCU_MULTIPLE_CORE
+ #define OSAL_MUTEX_REQUIRED 0
+ #define OSAL_MUTEX_DEF(_name) uint8_t :0
+#else
+ #define OSAL_MUTEX_REQUIRED 1
+ #define OSAL_MUTEX_DEF(_name) osal_mutex_def_t _name
+#endif
+// OS thin implementation
#if CFG_TUSB_OS == OPT_OS_NONE
#include "osal_none.h"
#elif CFG_TUSB_OS == OPT_OS_FREERTOS