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jeremybenn |
/*
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(C) Copyright IBM Corp. 2008
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of IBM nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SPU_TIMER_H_
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#define _SPU_TIMER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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/* Clock services. */
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extern void spu_clock_start (void);
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extern int spu_clock_stop (void);
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extern uint64_t spu_clock_read (void);
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/* Timer services. */
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extern int spu_timer_alloc (int interval, void (*func) (int));
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extern int spu_timer_free (int id);
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extern int spu_timer_start (int id);
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extern int spu_timer_stop (int id);
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extern unsigned spu_timebase (void);
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/* Interrupt services. */
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extern void spu_slih_register (unsigned event_mask,
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unsigned (*slih) (unsigned));
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extern unsigned spu_clock_slih (unsigned event_mask);
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/* Number of supported timers. */
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#define SPU_TIMER_NTIMERS 4
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/* Recommended minimun spu timer interval time from (cat /proc/cpuinfo)
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* QS20 100/14318000 = 6.98 usec
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* QS21/QS22 100/26666666 = 3.75 usec
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* PS3 100/79800000 = 1.25 usec */
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#define SPU_TIMER_MIN_INTERVAL 100
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/* Clock error codes. */
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#define SPU_CLOCK_ERR_NOT_RUNNING -2
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#define SPU_CLOCK_ERR_STILL_RUNNING -3
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#define SPU_CLOCK_ERR_TIMERS_ACTIVE -4
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/* Timer error codes. */
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#define SPU_TIMER_ERR_INVALID_PARM -10
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#define SPU_TIMER_ERR_NONE_FREE -11
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#define SPU_TIMER_ERR_INVALID_ID -12
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#define SPU_TIMER_ERR_ACTIVE -13
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#define SPU_TIMER_ERR_NOT_ACTIVE -14
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#define SPU_TIMER_ERR_NOCLOCK -15
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#define SPU_TIMER_ERR_FREE -16
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#define SPU_TIMER_ERR_NOT_STOPPED -17
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#ifdef __cplusplus
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}
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#endif
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#endif
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