+
−/*
+
− * This C module is a reconstruction based on the disassembly of
+
− * os_drv.obj in frame_na7_db_fl.lib from the Leonardo package.
+
− */
+
−
+
−/* set of included headers from COFF symtab: */
+
−#include "nucleus.h"
+
−#include "typedefs.h"
+
−#include "gdi.h"
+
−#include "os.h"
+
−
+
−typedef unsigned char u_char;
+
−
+
−extern OS_HANDLE os_ext_pool_handle;
+
−
+
−static u_char *HISR_Stack;
+
−static T_DRV_SIGNAL *SignalID;
+
−static void (*DrvCallback)(T_DRV_SIGNAL *);
+
−static NU_HISR CallBack_HISR;
+
−
+
−#define	CB_HISR_STACK_SIZE	1024
+
−
+
−GLOBAL LONG
+
−os_ExecuteCallback(OS_HANDLE Caller, void (*Callback)(T_DRV_SIGNAL *),
+
−			T_DRV_SIGNAL *Signal)
+
−{
+
−	DrvCallback = Callback;
+
−	SignalID = Signal;
+
−	NU_Activate_HISR(&CallBack_HISR);
+
−	return(OS_OK);
+
−}
+
−
+
−static void
+
−CallbackFunc(void)
+
−{
+
−	DrvCallback(SignalID);
+
−}
+
−
+
−GLOBAL LONG
+
−os_CreateCallback(void)
+
−{
+
−	if (os_AllocateMemory(OS_NOTASK, (T_VOID_STRUCT **) &HISR_Stack,
+
−				CB_HISR_STACK_SIZE, 0xFFFFFFFF,
+
−				os_ext_pool_handle) == OS_ERROR)
+
−		return(OS_ERROR);
+
−	if (NU_Create_HISR(&CallBack_HISR, "CB_HISR", CallbackFunc, 2,
+
−				HISR_Stack, CB_HISR_STACK_SIZE) == NU_SUCCESS)
+
−		return(OS_OK);
+
−	else
+
−		return(OS_ERROR);
+
−}