1 /* 2 (C) Copyright IBM Corp. 2008 3 4 All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions are met: 8 9 * Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 * Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in the 13 documentation and/or other materials provided with the distribution. 14 * Neither the name of IBM nor the names of its contributors may be 15 used to endorse or promote products derived from this software without 16 specific prior written permission. 17 18 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef _SPU_TIMER_H_ 32 #define _SPU_TIMER_H_ 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #include <stdint.h> 39 40 /* Clock services. */ 41 extern void spu_clock_start (void); 42 extern int spu_clock_stop (void); 43 extern uint64_t spu_clock_read (void); 44 45 /* Timer services. */ 46 extern int spu_timer_alloc (int interval, void (*func) (int)); 47 extern int spu_timer_free (int id); 48 extern int spu_timer_start (int id); 49 extern int spu_timer_stop (int id); 50 extern unsigned spu_timebase (void); 51 52 /* Interrupt services. */ 53 extern void spu_slih_register (unsigned event_mask, 54 unsigned (*slih) (unsigned)); 55 extern unsigned spu_clock_slih (unsigned event_mask); 56 57 /* Number of supported timers. */ 58 #define SPU_TIMER_NTIMERS 4 59 60 /* Recommended minimun spu timer interval time from (cat /proc/cpuinfo) 61 * QS20 100/14318000 = 6.98 usec 62 * QS21/QS22 100/26666666 = 3.75 usec 63 * PS3 100/79800000 = 1.25 usec */ 64 #define SPU_TIMER_MIN_INTERVAL 100 65 66 /* Clock error codes. */ 67 #define SPU_CLOCK_ERR_NOT_RUNNING -2 68 #define SPU_CLOCK_ERR_STILL_RUNNING -3 69 #define SPU_CLOCK_ERR_TIMERS_ACTIVE -4 70 71 /* Timer error codes. */ 72 #define SPU_TIMER_ERR_INVALID_PARM -10 73 #define SPU_TIMER_ERR_NONE_FREE -11 74 #define SPU_TIMER_ERR_INVALID_ID -12 75 #define SPU_TIMER_ERR_ACTIVE -13 76 #define SPU_TIMER_ERR_NOT_ACTIVE -14 77 #define SPU_TIMER_ERR_NOCLOCK -15 78 #define SPU_TIMER_ERR_FREE -16 79 #define SPU_TIMER_ERR_NOT_STOPPED -17 80 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif 86
