clock.h

RTOS系统

/* $Id: //depot/software/SDK/Triscend/a7hal/include/clock.h#27 $ */
#ifndef _CLOCK_H
#define _CLOCK_H
/*
 **********************************************************
 *  clock.h
 *  Copyright(C) 2001-2003 Triscend Corporation. All Rights Reserved.
 *  This file is licensed under the terms of Triscend SDK License Agreement.
 **********************************************************
 */

/**
 * \file
 * Contains #defines and function prototypes for the Clock driver
 */


#if defined(A7VE) || defined(A7VC) || defined(A7VT) || defined(A7VL)
#define A7HAL_XTAL_FREQ  32768          /* Default value for PLL clock */

#if defined(TA7VT05_RevA) || defined(TA7VT05_RevA_Audio) || defined(TA7VT05_RevA_Motor)

#define A7HAL_XCLK_FREQ  25000000       /* Default value for the external clock */

#else

#define A7HAL_XCLK_FREQ  48000000       /* Default value for the external clock */

#endif

#define A7HAL_RING_FREQ  18000000       /* Default value for RING oscillator */

#else

#define A7HAL_XTAL_FREQ  32768          /* Default value for PLL clock */
#define A7HAL_XCLK_FREQ  40000000       /* Default value for the external clock */
#define A7HAL_RING_FREQ  20000000       /* Default value for RING oscillator */

#endif

/*
 * Definitions for uClinux IOCTL calls.
 */
#define A7HAL_IOCTL_CLOCK_GET_FREQ	0x00

#ifdef __cplusplus
extern "C"
{
#endif

    void a7hal_clock_init( void );
    unsigned long a7hal_clock_getDeviceAddress( void );
    void a7hal_clock_reset( void );

    unsigned long a7hal_clock_getFreq( int noRAM );
    void a7hal_clock_setPllClock( unsigned long freq );
    unsigned long a7hal_clock_getPllClock( void );
    void a7hal_clock_setXClock( unsigned long freq );
    unsigned long a7hal_clock_getXClock( void );
    void a7hal_clock_setRing( unsigned long freq );
    unsigned long a7hal_clock_getRing( void );

#ifdef __cplusplus
}
#endif

#endif