[363] | 1 | /*
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| 2 | * TOPPERS/JSP Kernel
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
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| 4 | * Just Standard Profile Kernel
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| 5 | *
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| 6 | * Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
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| 7 | * Toyohashi Univ. of Technology, JAPAN
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| 8 | *
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| 9 | * ä¸è¨èä½æ¨©è
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| 10 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 11 | * ã«ãã£ã¦å
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| 12 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 13 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 14 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 15 | å¸ï¼ä»¥ä¸ï¼
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| 16 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 17 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 18 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 19 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 20 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 21 | * ç¨ã§ããå½¢ã§åé
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| 22 | å¸ããå ´åã«ã¯ï¼åé
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| 23 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 24 | * è
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| 25 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 26 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 27 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 28 | * ç¨ã§ããªãå½¢ã§åé
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| 29 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 30 | * ã¨ï¼
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| 31 | * (a) åé
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| 32 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 33 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 34 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 35 | * (b) åé
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| 36 | å¸ã®å½¢æ
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| 37 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 38 | * å ±åãããã¨ï¼
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| 39 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 40 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 41 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 42 | 責ãããã¨ï¼
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| 43 | *
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| 44 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 45 | ã
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| 46 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 47 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 48 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 49 | *
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| 50 | * @(#) $Id: hw_timer.h,v 1.6 2003/12/04 08:25:44 honda Exp $
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| 51 | */
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| 52 |
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| 53 | #ifndef _HW_TIMER_H_
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| 54 | #define _HW_TIMER_H_
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| 55 |
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| 56 | #include <s_services.h>
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| 57 | #include "c54x.h"
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| 58 |
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| 59 | #define INHNO_TIMER TINT0_VEC
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| 60 |
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| 61 | #ifndef _MACRO_ONLY
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| 62 |
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| 63 | #define TO_CLOCK(nume,deno) (TIMER_CLOCK * (nume) / (deno))
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| 64 | #define TO_USEC(clock) ((clock) * 1000 / TIMER_CLOCK)
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| 65 |
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| 66 | #define MAX_CLOCK ((CLOCK) 0xffff)
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| 67 |
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| 68 | #define GET_TOLERANCE 100
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| 69 |
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| 70 | #define BEFORE_IREQ(clock) \
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| 71 | ((clock) >= TO_CLOCK(TIC_NUME, TIC_DENO) - GET_TOLERANCE)
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| 72 |
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| 73 |
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| 74 | typedef UH CLOCK;
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| 75 |
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| 76 | Inline void
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| 77 | hw_timer_initialize()
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| 78 | {
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| 79 | CLOCK c = TO_CLOCK(TIC_NUME,TIC_DENO);
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| 80 |
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| 81 | /* 0.25 μsecã§ã«ã¦ã³ããã */
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| 82 | sil_wrh_mem((VP) TMU0_TCR, TCR_TSS | 0x0009);
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| 83 | // sil_wrh_mem((VP) TMU0_TCR, TCR_TSS | 0x0001);
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| 84 | /* ã«ã¦ã³ã¿ã®è¨å® */
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| 85 | sil_wrh_mem((VP) TMU0_PRD, c - 1);
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| 86 | /* ãã¦ã³ã«ã¦ã³ã¿ã®åæå¤è¨å® */
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| 87 | sil_wrh_mem((VP) TMU0_TCR, (sil_reh_mem((VP) TMU0_TCR) | TCR_TRB));
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| 88 | /* ã¿ã¤ãã®èµ·å */
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| 89 | sil_wrh_mem((VP) TMU0_TCR, (sil_reh_mem((VP) TMU0_TCR) & ~TCR_TSS));
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| 90 |
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| 91 | sil_wrh_mem((VP) IFR, (sil_reh_mem((VP) IFR) | (0x1 << TINT0)));
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| 92 | sil_wrh_mem((VP) IMR, (sil_reh_mem((VP) IMR) | (0x1 << TINT0)));
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| 93 | }
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| 94 |
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| 95 | Inline void
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| 96 | hw_timer_int_clear()
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| 97 | {
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| 98 | }
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| 99 |
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| 100 | Inline void
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| 101 | hw_timer_terminate()
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| 102 | {
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| 103 | sil_wrh_mem((VP) TMU0_TCR, (sil_reh_mem((VP) TMU0_TCR) | TCR_TSS));
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| 104 | sil_wrh_mem((VP) IMR, (sil_reh_mem((VP) IMR) & ~(0x1 << TINT0)));
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| 105 | sil_wrh_mem((VP) IFR, (sil_reh_mem((VP) IFR) | (0x1 << TINT0)));
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| 106 | }
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| 107 |
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| 108 | Inline CLOCK
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| 109 | hw_timer_get_current(void)
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| 110 | {
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| 111 | return(TO_CLOCK(TIC_NUME,TIC_DENO) - sil_reh_mem((VP) TMU0_TIM));
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| 112 | }
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| 113 |
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| 114 | Inline BOOL
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| 115 | hw_timer_fetch_interrupt(void)
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| 116 | {
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| 117 | return(sil_reh_mem((VP) IFR) & (0x1 << TINT0));
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| 118 | }
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| 119 |
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| 120 | #endif /* _MACRO_ONLY */
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| 121 | #endif /* _HW_TIMER_H_ */
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