/***************************************************************************
 *     Copyright (c) 2003-2008, Broadcom Corporation
 *     All Rights Reserved
 *     Confidential Property of Broadcom Corporation
 *
 *  THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE
 *  AGREEMENT  BETWEEN THE USER AND BROADCOM.  YOU HAVE NO RIGHT TO USE OR
 *  EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
 *
 * $brcm_Workfile: $
 * $brcm_Revision: $
 * $brcm_Date: $
 *
 * Module Description:
 *
 * Revision History:
 *
 * $brcm_Log: $
 * 
 *
 ***************************************************************************/
#if !defined(__OS_SPU_H__)
#define __OS_CPU_H__

#if defined(OS_CPU_GLOBALS)
#define OS_CPU_EXT
#else
#define OS_CPU_EXT extern
#endif

typedef unsigned int BOOLEAN;
typedef unsigned char INT8U;
typedef signed char INT8S;
typedef unsigned short INT16U;
typedef signed short INT16S;
typedef unsigned long INT32U;
typedef signed long INT32S;

typedef float FP32;
typedef double FP64;

typedef unsigned long OS_STK;

typedef unsigned long OS_CPU_SR;
typedef unsigned long register_t;
typedef void (*exception_handler_t)(register_t *);

#define OS_CRITICAL_METHOD 3
#define OS_DISABLE 0
#define OS_ENABLE 0xFF00

#ifdef UCOS_II

#include "bos.h"
#define get_ucos_pw_cycles_per_second()  (g_cycles_per_tick * g_ticks_per_second)
#define get_ucos_sw_ticks_per_second()  g_ticks_per_second
#define get_ucos_hw_cycles_per_tick()  g_cycles_per_tick
#define HW_TICKS_PER_SEC get_ucos_pw_cycles_per_second()
#define SW_TICKS_PER_SEC get_ucos_sw_ticks_per_second()
#define OS_HW_TICKS (g_cycles_per_tick)

#else

#define HW_TICKS_PER_SEC (216000000/2)
#define SW_TICKS_PER_SEC 200
#define OS_HW_TICKS (HW_TICKS_PER_SEC/SW_TICKS_PER_SEC)

#endif

#define OS_ENTER_CRITICAL() do { cpu_sr = MIPS_SetInterrupts(OS_DISABLE); } while(0)
#define OS_EXIT_CRITICAL() do { MIPS_SetInterrupts(cpu_sr); } while(0)

#define OS_STK_GROWTH 1

#define OS_TASK_SW() do { \
    __asm__(".set push; .set mips32; syscall 0xb; .set pop"); } while (0)

extern void OSIntCtxSw(void);
extern void OSStartHighRdy(void);
extern OS_CPU_SR MIPS_SetInterrupts(OS_CPU_SR new_sr);

extern void OSInitVectors(void);

#define OS_FRAME_SIZE 48

extern INT8U OSRegisterInterrupt(INT8U vector, void(*handler)(void), void(**old_handler)(void));

extern INT8U OSRegisterException(INT8U vector, exception_handler_t new_handler, exception_handler_t * old_handler);

#endif