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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-ia64/] [sn/] [mmtimer_private.h] - Blame information for rev 1765

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Line No. Rev Author Line
1 1275 phoenix
/*
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 * Intel Multimedia Timer device interface
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 *
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 * This file is subject to the terms and conditions of the GNU General Public
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 * License.  See the file "COPYING" in the main directory of this archive
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 * for more details.
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 *
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 * Copyright (c) 2001-2003 Silicon Graphics, Inc.  All rights reserved.
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 *
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 * Helper file for the SN implementation of mmtimers
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 *
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 * 11/01/01 - jbarnes - initial revision
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 */
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#ifndef _SN_MMTIMER_PRIVATE_H
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#define RTC_BITS 55 /* 55 bits for this implementation */
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#define NUM_COMPARATORS 2 /* two comparison registers in SN1 */
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/*
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 * Check for an interrupt and clear the pending bit if
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 * one is waiting.
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 */
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#define MMTIMER_INT_PENDING(x) (x ? *(RTC_INT_PENDING_B_ADDR) : *(RTC_INT_PENDING_A_ADDR))
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/*
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 * Set interrupts on RTC 'x' to 'v' (true or false)
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 */
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#define MMTIMER_SET_INT(x,v) (x ? (*(RTC_INT_ENABLED_B_ADDR) = (unsigned long)(v)) : (*(RTC_INT_ENABLED_A_ADDR) = (unsigned long)(v)))
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#define MMTIMER_ENABLE_INT(x) MMTIMER_SET_INT(x, 1)
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#define MMTIMER_DISABLE_INT(x) MMTIMER_SET_INT(x, 0)
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typedef struct mmtimer {
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        spinlock_t timer_lock;
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        unsigned long periodic;
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        int signo;
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        volatile unsigned long *compare;
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        struct task_struct *process;
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} mmtimer_t;
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#endif /* _SN_LINUX_MMTIMER_PRIVATE_H */

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