// ******************** risc_dsp_sync.h ***************************************
//                 Risc-Dsp runtime library
//
// This file contains initialization of primitives. Synchronization primitives for 
// dsp - semaphore (16 semaphores, access by index) and lock by XBUF.
// Works only in XBUF synchronous mode. Don`t use X31 register!
//
// (c) multicore.ru
//
// *******************************************************************


#ifndef _RISC_DSP_SYNC_H_
#define _RISC_DSP_SYNC_H_

#ifdef	__cplusplus
extern "C" {
#endif

#define LEN_SEM 16


// Function: risc_dsp_create_xbuflock
//
// Initialize XBUF lock by setting XBUF in synchronous mode
// and writing to X31
//
void risc_dsp_create_xbuflock();

// Function: risc_dsp_sem_init
//
// Initialize semaphore for dsp. Uses xbuflock!
//
// Parameters:
//        num      - pointer to semaphore (extern from dsp)
//	      val        - initial value of semaphore
//
// See also:
//
//      risc_dsp_create_xbuflock
//
void risc_dsp_sem_init(int num, int val);

#ifdef	__cplusplus
}
#endif

#endif // _RISC_DSP_SYNC_H_