[apple/xnu.git] / osfmk / ppc / clock.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 * 
 */

#ifndef _PPC_CLOCK_H_
#define _PPC_CLOCK_H_

#include <machine/mach_param.h>

#define CLK_SPEED	0.0000012766	/* time to complete a clock (3 MHz) */

#if HZ == 120
#  define CLK_INTERVAL	6528	/* clocks to hit CLK_TCK ticks per sec */
#elif HZ == 100
#  define CLK_INTERVAL	7833	/* clocks to hit CLK_TCK ticks per sec */
#elif HZ == 60
#  define CLK_INTERVAL	13055	/* clocks to hit CLK_TCK ticks per sec */
#else
#error "unknown clock speed"
#endif
			/* 6528 for 119.998 Hz. */
                        /* 7833 for 100.004 Hz */
			/* 13055 for 60.002 Hz. */
#define CLK_INTH	(CLK_INTERVAL >> 8)
#define CLK_INTL	(CLK_INTERVAL & 0xff)

#define	SECDAY	((unsigned)(24*60*60))
#define	SECYR	((unsigned)(365*SECDAY + SECDAY/4))

#endif /* _PPC_CLOCK_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
de355530 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
de355530 A	12	* This Original Code and all software distributed under the License are
de355530 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
de355530 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*
	25	*/
	26
	27	#ifndef _PPC_CLOCK_H_
	28	#define _PPC_CLOCK_H_
	29
	30	#include <machine/mach_param.h>
	31
	32	#define CLK_SPEED 0.0000012766 /* time to complete a clock (3 MHz) */
	33
	34	#if HZ == 120
	35	# define CLK_INTERVAL 6528 /* clocks to hit CLK_TCK ticks per sec */
	36	#elif HZ == 100
	37	# define CLK_INTERVAL 7833 /* clocks to hit CLK_TCK ticks per sec */
	38	#elif HZ == 60
	39	# define CLK_INTERVAL 13055 /* clocks to hit CLK_TCK ticks per sec */
	40	#else
	41	#error "unknown clock speed"
	42	#endif
	43	/* 6528 for 119.998 Hz. */
	44	/* 7833 for 100.004 Hz */
	45	/* 13055 for 60.002 Hz. */
	46	#define CLK_INTH (CLK_INTERVAL >> 8)
	47	#define CLK_INTL (CLK_INTERVAL & 0xff)
	48
	49	#define SECDAY ((unsigned)(246060))
	50	#define SECYR ((unsigned)(365*SECDAY + SECDAY/4))
	51
	52	#endif /* _PPC_CLOCK_H_ */