[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 | * Copyright (C) 2000-2003 by Industrial Technology Institute,
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| 9 | * Miyagi Prefectural Government, JAPAN
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| 10 | * Copyright (C) 2002-2004 by Hokkaido Industrial Research Institute, JAPAN
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| 11 | * Copyright (C) 2007 by KURUSUGAWA Electronics Industry Inc, JAPAN
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| 12 | * Copyright (C) 2008 by Takahisa Yokota
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| 13 | *
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| 14 | * ä¸è¨èä½æ¨©è
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| 15 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 16 | * ã«ãã£ã¦å
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| 17 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 18 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 19 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 20 | å¸ï¼ä»¥ä¸ï¼
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| 21 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 22 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 23 | * 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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| 24 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 25 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 26 | * ç¨ã§ããå½¢ã§åé
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| 27 | å¸ããå ´åã«ã¯ï¼åé
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| 28 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 29 | * è
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| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 31 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 32 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 33 | * ç¨ã§ããªãå½¢ã§åé
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| 34 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 35 | * ã¨ï¼
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| 36 | * (a) åé
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| 37 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 38 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 39 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 40 | * (b) åé
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| 41 | å¸ã®å½¢æ
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| 42 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 43 | * å ±åãããã¨ï¼
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| 44 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 45 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 46 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 47 | 責ãããã¨ï¼
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| 48 | *
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| 49 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 50 | ã
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| 51 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 52 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 53 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 54 | *
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| 55 | * @(#) $Id: sh7615frt.h,v 1.5 2005/07/06 00:45:07 honda Exp $
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| 56 | */
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| 57 |
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| 58 | /*
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| 59 | * ã¿ã¤ããã©ã¤ã
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| 60 | * FRTã使ç¨
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| 61 | */
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| 62 |
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| 63 | #ifndef _MCFPIT_H_
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| 64 | #define _MCFPIT_H_
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| 65 |
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| 66 | /*
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| 67 | * ã¿ã¤ãã¸ã®å
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| 68 | ¥åã¯ããã¯ã®åå¨æ¯è¨å®
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| 69 | * f/8ã§ã«ã¦ã³ã
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| 70 | */
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| 71 | #define TCR_CKS 0x0
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| 72 |
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| 73 | /*
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| 74 | * ã¿ã¤ãã«ä¾çµ¦ãããã¯ããã¯å¨æ³¢æ°[kHz]
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| 75 | * 60MHz/2 = 30MHz
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| 76 | */
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| 77 | #define TIMER_CLOCK (25000)
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| 78 |
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| 79 | /*
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| 80 | * ã¿ã¤ãå¤ã®å
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| 81 | é¨è¡¨ç¾ã®å
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| 82 | */
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| 83 | typedef UH CLOCK;
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| 84 |
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| 85 | /*
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| 86 | * ã¿ã¤ãå¤ã®å
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| 87 | é¨è¡¨ç¾ã¨ããªç§ã»Î¼ç§åä½ã¨ã®å¤æ
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| 88 | *
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| 89 | */
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| 90 | #define TO_CLOCK(nume, deno) (TIMER_CLOCK * (nume) / (deno))
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| 91 | #define TO_USEC(clock) ((clock) * 1000 / TIMER_CLOCK)
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| 92 | #define CLOCK_PER_TICK ((CLOCK) TO_CLOCK(TIC_NUME, TIC_DENO))
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| 93 |
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| 94 | /*
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| 95 | * è¨å®ã§ããæ大ã®ã¿ã¤ãå¨æï¼åä½ã¯å
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| 96 | é¨è¡¨ç¾ï¼
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| 97 | */
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| 98 | #define MAX_CLOCK ((CLOCK) 0xffff)
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| 99 |
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| 100 | /*
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| 101 | * ã¿ã¤ãã®ç¾å¨å¤ãå²è¾¼ã¿çºçåã®å¤ã¨ã¿ãªããã®å¤æ
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| 102 | */
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| 103 | #define GET_TOLERANCE 100 /* å¦çé
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| 104 | ãã®è¦ç©ãå¤ï¼åä½ã¯å
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| 105 | é¨è¡¨ç¾ï¼ */
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| 106 | #define BEFORE_IREQ(clock) \
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| 107 | ((clock) >= TO_CLOCK(TIC_NUME, TIC_DENO) - GET_TOLERANCE)
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| 108 |
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| 109 | /*
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| 110 | * ã¬ã¸ã¹ã¿ã®è¨å®å¤
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| 111 | */
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| 112 | #define MCF_PIT_PCSR_EN (0x0001u)
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| 113 | #define MCF_PIT_PCSR_RLD (0x0002u)
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| 114 | #define MCF_PIT_PCSR_PIF (0x0004u)
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| 115 | #define MCF_PIT_PCSR_PIE (0x0008u)
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| 116 | #define MCF_PIT_PCSR_OVW (0x0010u)
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| 117 | #define MCF_PIT_PCSR_DBG (0x0020u)
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| 118 | #define MCF_PIT_PCSR_DOZE (0x0040u)
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| 119 |
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| 120 | /*
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| 121 | * ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ã®ã¢ãã¬ã¹
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| 122 | */
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| 123 | #define MCF_PIT0_PCSR (VH*)(IPSBAR + 0x00150000)
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| 124 | #define MCF_PIT0_PMR (VH*)(IPSBAR + 0x00150002)
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| 125 | #define MCF_PIT0_PCNTR (VH*)(IPSBAR + 0x00150004)
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| 126 |
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| 127 |
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| 128 | #ifndef _MACRO_ONLY
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| 129 |
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| 130 | /*
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| 131 | * ã¿ã¤ãã¹ã¿ã¼ã
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| 132 | */
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| 133 | Inline void
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| 134 | mcf_timer_start ()
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| 135 | {
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| 136 | sil_wrh_mem (MCF_PIT0_PCSR, sil_reh_mem (MCF_PIT0_PCSR) | MCF_PIT_PCSR_EN);
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| 137 | }
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| 138 |
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| 139 | /*
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| 140 | * ã¿ã¤ãä¸æåæ¢
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| 141 | */
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| 142 | Inline void
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| 143 | mcf_timer_stop ()
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| 144 | {
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| 145 | /* ã¿ã¤ããåæ¢ */
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| 146 | sil_wrh_mem (MCF_PIT0_PCSR, sil_reh_mem (MCF_PIT0_PCSR) & ~MCF_PIT_PCSR_EN);
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| 147 | }
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| 148 | /*
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| 149 | * ã¿ã¤ãå²è¾¼ã¿è¦æ±ã®ã¯ãªã¢
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| 150 | * TCRã¬ã¸ã¹ã¿ã®IMFAãããã¯1åèªã¿åºããå¾ã«ï¼ãæ¸ãè¾¼ã
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| 151 | */
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| 152 | Inline void
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| 153 | mcf_timer_int_clear ()
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| 154 | {
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| 155 | /* å²ãè¾¼ã¿è¦æ±ãã¯ãªã¢ */
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| 156 | sil_wrh_mem (MCF_PIT0_PCSR, sil_reh_mem (MCF_PIT0_PCSR));
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| 157 | }
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| 158 |
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| 159 |
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| 160 | /*
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| 161 | * ã¿ã¤ãã®èµ·åå¦ç
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| 162 | *
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| 163 | * ã¿ã¤ããåæåãï¼å¨æçãªã¿ã¤ãå²è¾¼ã¿è¦æ±ãçºçãããï¼
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| 164 | */
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| 165 | Inline void
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| 166 | mcf_timer_initialize ()
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| 167 | {
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| 168 | CLOCK cyc = TO_CLOCK (TIC_NUME, TIC_DENO);
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| 169 |
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| 170 | /*
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| 171 | * ã¿ã¤ãé¢é£ã®è¨å®
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| 172 | */
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| 173 | mcf_timer_stop (); /* ã¿ã¤ãåæ¢ */
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| 174 | /* ã¿ã¤ãä¸éå¤ã®ãã§ã㯠*/
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| 175 | assert (cyc <= MAX_CLOCK);
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| 176 | /*
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| 177 | * ã¿ã¤ãå²è¾¼ã¿ã®å²è¾¼ã¿ã¬ãã«ãè¨å®ãï¼è¦æ±ãã¯ãªã¢ããå¾ï¼
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| 178 | * ãã¹ã¯ã解é¤ããï¼
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| 179 | */
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| 180 | sil_wrh_mem (MCF_PIT0_PCSR, (VH)(MCF_PIT_PCSR_OVW | MCF_PIT_PCSR_PIF | MCF_PIT_PCSR_RLD));
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| 181 | sil_wrh_mem (MCF_PIT0_PMR, (VH)CLOCK_PER_TICK);
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| 182 | sil_wrh_mem (MCF_PIT0_PCNTR,0x0000);
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| 183 | sil_wrh_mem (MCF_PIT0_PCSR, sil_reh_mem(MCF_PIT0_PCSR) | MCF_PIT_PCSR_PIE); //å²ãè¾¼ã¿è¨±å¯
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| 184 | }
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| 185 |
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| 186 | /*
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| 187 | * ã¿ã¤ãã®åæ¢å¦ç
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| 188 | *
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| 189 | * ã¿ã¤ãã®åä½ãåæ¢ãããï¼
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| 190 | */
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| 191 | Inline void
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| 192 | mcf_timer_terminate ()
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| 193 | {
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| 194 | /*
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| 195 | * ã¿ã¤ãã®åä½ãåæ¢ããï¼
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| 196 | */
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| 197 | mcf_timer_stop();
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| 198 | mcf_timer_int_clear ();
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| 199 | /*
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| 200 | * ã¿ã¤ãå²è¾¼ã¿ããã¹ã¯ãï¼è¦æ±ãã¯ãªã¢ããï¼
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| 201 | */
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| 202 | sil_wrh_mem (MCF_PIT0_PCSR, sil_reh_mem(MCF_PIT0_PCSR) & ~MCF_PIT_PCSR_PIE); //å²ãè¾¼ã¿ä¸è¨±å¯
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| 203 | sil_wrh_mem (MCF_PIT0_PCNTR,0x0000);
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| 204 | sil_wrh_mem (MCF_PIT0_PMR,0x0000);
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| 205 | sil_wrw_mem (MCF_INTC_IMRH(MCF_INTC0), sil_rew_mem(MCF_INTC_IMRH(MCF_INTC0)) | (1 << (TBIT_TT0)));
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| 206 | }
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| 207 |
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| 208 | /*
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| 209 | * ã¿ã¤ãã®ç¾å¨å¤ã®èªåºã
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| 210 | */
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| 211 | Inline CLOCK
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| 212 | mcf_timer_get_current ()
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| 213 | {
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| 214 | CLOCK clk;
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| 215 |
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| 216 | clk = TO_CLOCK(TIC_NUME, TIC_DENO) - sil_reh_mem(MCF_PIT0_PCNTR);
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| 217 | return (clk);
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| 218 | }
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| 219 |
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| 220 | /*
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| 221 | * ã¿ã¤ãå²è¾¼ã¿è¦æ±ã®ãã§ãã¯
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| 222 | */
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| 223 | Inline BOOL
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| 224 | mcf_timer_fetch_interrupt ()
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| 225 | {
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| 226 | return (sil_reh_mem (MCF_PIT0_PCSR) & MCF_PIT_PCSR_PIF);
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| 227 | }
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| 228 |
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| 229 | #endif /* _MACRO_ONLY */
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| 230 | #endif /* _MCFPIT_H_ */
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