[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 | *
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| 12 | * ä¸è¨èä½æ¨©è
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| 13 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 14 | * ã«ãã£ã¦å
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| 15 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 16 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 17 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 18 | å¸ï¼ä»¥ä¸ï¼
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| 19 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 20 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 21 | * 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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| 22 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 23 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 24 | * ç¨ã§ããå½¢ã§åé
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| 25 | å¸ããå ´åã«ã¯ï¼åé
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| 26 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 27 | * è
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| 28 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 29 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 30 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 31 | * ç¨ã§ããªãå½¢ã§åé
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| 32 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 33 | * ã¨ï¼
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| 34 | * (a) åé
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| 35 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 36 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 37 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 38 | * (b) åé
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| 39 | å¸ã®å½¢æ
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| 40 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 41 | * å ±åãããã¨ï¼
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| 42 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 43 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 44 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 45 | 責ãããã¨ï¼
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| 46 | *
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| 47 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 48 | ã
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| 49 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 50 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 51 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 52 | *
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| 53 | * @(#) $Id: sh7615frt.h,v 1.5 2005/07/06 00:45:07 honda Exp $
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| 54 | */
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| 55 |
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| 56 | /*
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| 57 | * ã¿ã¤ããã©ã¤ã
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| 58 | * FRTã使ç¨
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| 59 | */
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| 60 |
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| 61 | #ifndef _SH7615FRT_H_
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| 62 | #define _SH7615FRT_H_
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| 63 |
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| 64 | /*
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| 65 | * ã¿ã¤ãã¸ã®å
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| 66 | ¥åã¯ããã¯ã®åå¨æ¯è¨å®
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| 67 | * f/8ã§ã«ã¦ã³ã
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| 68 | */
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| 69 | #define TCR_CKS 0x0
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| 70 |
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| 71 | /*
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| 72 | * ã¿ã¤ãã«ä¾çµ¦ãããã¯ããã¯å¨æ³¢æ°[kHz]
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| 73 | * 14.7456MHz/8 =1.8432MHz =1843.2kHz
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| 74 | */
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| 75 | #define TIMER_CLOCK 1843
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| 76 |
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| 77 |
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| 78 | /*
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| 79 | * ã¿ã¤ãå¤ã®å
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| 80 | é¨è¡¨ç¾ã®å
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| 81 | */
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| 82 | typedef UH CLOCK;
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| 83 |
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| 84 | /*
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| 85 | * ã¿ã¤ãå¤ã®å
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| 86 | é¨è¡¨ç¾ã¨ããªç§ã»Î¼ç§åä½ã¨ã®å¤æ
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| 87 | *
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| 88 | */
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| 89 | #define TO_CLOCK(nume, deno) (TIMER_CLOCK * (nume) / (deno))
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| 90 | #define TO_USEC(clock) ((clock) * 1000 / TIMER_CLOCK)
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| 91 | #define CLOCK_PER_TICK ((CLOCK) TO_CLOCK(TIC_NUME, TIC_DENO))
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| 92 |
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| 93 | /*
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| 94 | * è¨å®ã§ããæ大ã®ã¿ã¤ãå¨æï¼åä½ã¯å
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| 95 | é¨è¡¨ç¾ï¼
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| 96 | */
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| 97 | #define MAX_CLOCK ((CLOCK) 0xffff)
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| 98 |
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| 99 | /*
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| 100 | * ã¿ã¤ãã®ç¾å¨å¤ãå²è¾¼ã¿çºçåã®å¤ã¨ã¿ãªããã®å¤æ
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| 101 | */
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| 102 | #define GET_TOLERANCE 100 /* å¦çé
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| 103 | ãã®è¦ç©ãå¤ï¼åä½ã¯å
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| 104 | é¨è¡¨ç¾ï¼ */
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| 105 | #define BEFORE_IREQ(clock) \
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| 106 | ((clock) >= TO_CLOCK(TIC_NUME, TIC_DENO) - GET_TOLERANCE)
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| 107 |
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| 108 | /*
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| 109 | * ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ã®ã¢ãã¬ã¹
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| 110 | */
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| 111 |
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| 112 | #define FRT_FTCSR (VB *)0xfffffe11
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| 113 | #define FRT_TOCR (VB *)0xfffffe17
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| 114 | #define FRT_TCR (VB *)0xfffffe16
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| 115 | #define FRT_OCRH (VB *)0xfffffe14
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| 116 | #define FRT_OCRL (VB *)0xfffffe15
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| 117 | #define FRT_TIER (VB *)0xfffffe10
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| 118 | #define FRT_FRCH (VB *)0xfffffe12
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| 119 | #define FRT_FRCL (VB *)0xfffffe13
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| 120 |
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| 121 |
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| 122 | #ifndef _MACRO_ONLY
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| 123 |
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| 124 | /*
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| 125 | * ã¿ã¤ãã¹ã¿ã¼ã
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| 126 | */
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| 127 | Inline void
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| 128 | sh2_timer_start ()
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| 129 | {
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| 130 | /* OCRAä¸è´ã«ããå²è¾¼çºçè¨±å¯ */
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| 131 | sil_wrb_mem (FRT_TIER, sil_reb_mem(FRT_TIER) | 0x08);
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| 132 | }
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| 133 |
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| 134 | /*
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| 135 | * ã¿ã¤ãä¸æåæ¢
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| 136 | */
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| 137 | Inline void
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| 138 | sh2_timer_stop ()
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| 139 | {
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| 140 | /* OCRAä¸è´ã«ããå²è¾¼çºçä¸è¨±å¯ */
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| 141 | sil_wrb_mem (FRT_TIER, sil_reb_mem(FRT_TIER) & ~0x08);
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| 142 | }
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| 143 | /*
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| 144 | * ã¿ã¤ãå²è¾¼ã¿è¦æ±ã®ã¯ãªã¢
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| 145 | * TCRã¬ã¸ã¹ã¿ã®IMFAãããã¯1åèªã¿åºããå¾ã«ï¼ãæ¸ãè¾¼ã
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| 146 | */
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| 147 | Inline void
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| 148 | sh2_timer_int_clear ()
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| 149 | {
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| 150 | /* å²ãè¾¼ã¿è¦æ±ãã¯ãªã¢ */
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| 151 | /* ï¼GRAã³ã³ãã¢ããããã©ã°ï¼ */
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| 152 | sil_wrb_mem (FRT_FTCSR, sil_reb_mem (FRT_FTCSR) & 0xf7);
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| 153 | /* OCRAã³ã³ãã¢ããããã©ã°ã®ã¯ãªã¢ */
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| 154 |
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| 155 | }
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| 156 |
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| 157 |
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| 158 | /*
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| 159 | * ã¿ã¤ãã®èµ·åå¦ç
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| 160 | *
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| 161 | * ã¿ã¤ããåæåãï¼å¨æçãªã¿ã¤ãå²è¾¼ã¿è¦æ±ãçºçãããï¼
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| 162 | */
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| 163 | Inline void
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| 164 | sh2_timer_initialize ()
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| 165 | {
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| 166 | CLOCK cyc = TO_CLOCK (TIC_NUME, TIC_DENO);
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| 167 |
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| 168 |
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| 169 | /*
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| 170 | * ã¿ã¤ãé¢é£ã®è¨å®
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| 171 | */
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| 172 | sh2_timer_stop (); /* ã¿ã¤ãåæ¢ */
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| 173 | /* ã¿ã¤ãä¸éå¤ã®ãã§ã㯠*/
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| 174 | assert (cyc <= MAX_CLOCK);
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| 175 |
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| 176 | /* OCRAé¸æ */
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| 177 | sil_wrb_mem (FRT_TOCR, 0x00);
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| 178 | /* åå¨æ¯è¨å® clock 1/8 */
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| 179 | sil_wrb_mem (FRT_TCR, 0x00);
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| 180 | /* OCRAä¸è´ã«ããFRCã®ã¯ãªã¢ */
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| 181 | sil_wrb_mem (FRT_FTCSR, sil_reb_mem (FRT_FTCSR) | 0x01);
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| 182 | /* ã³ã³ãã¢ããããã©ã°ã®ã¯ãªã¢ */
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| 183 | sil_wrb_mem (FRT_FTCSR, sil_reb_mem (FRT_FTCSR) & 0xf7);
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| 184 | /* OCRAã¬ã¸ã¹ã¿è¨å®ï¼ã«ã¦ã³ã¿ç®æ¨å¤ï¼ */
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| 185 | sil_wrb_mem (FRT_OCRH, (CLOCK_PER_TICK >> 8) & 0x00ff);
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| 186 | sil_wrb_mem (FRT_OCRL, (CLOCK_PER_TICK) & 0x00ff);
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| 187 | /* OCRAä¸è´ã«ããå²è¾¼çºçè¨±å¯ */
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| 188 | sil_wrb_mem (FRT_TIER, 0x09);
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| 189 | /* ã«ã¦ã³ã¿ãã¯ãªã¢ */
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| 190 | sil_wrb_mem (FRT_FRCH, 0);
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| 191 | sil_wrb_mem (FRT_FRCL, 0);
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| 192 | }
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| 193 |
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| 194 | /*
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| 195 | * ã¿ã¤ãã®åæ¢å¦ç
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| 196 | *
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| 197 | * ã¿ã¤ãã®åä½ãåæ¢ãããï¼
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| 198 | */
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| 199 | Inline void
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| 200 | sh2_timer_terminate ()
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| 201 | {
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| 202 | sh2_timer_stop (); /* ã¿ã¤ããåæ¢ */
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| 203 | sh2_timer_int_clear (); /* å²ãè¾¼ã¿è¦æ±ãã¯ãªã¢ */
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| 204 |
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| 205 | sil_wrb_mem (FRT_TIER, 0x01); //å²ãè¾¼ã¿ä¸è¨±å¯
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| 206 | sil_wrb_mem (FRT_FRCH, 0);
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| 207 | sil_wrb_mem (FRT_FRCL, 0);
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| 208 | sil_wrb_mem (FRT_OCRH, 0);
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| 209 | sil_wrb_mem (FRT_OCRL, 0);
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| 210 | }
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| 211 |
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| 212 | /*
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| 213 | * ã¿ã¤ãã®ç¾å¨å¤ã®èªåºã
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| 214 | *ãããã¿ã¤ãå¤ãèªã¿åºãï¼
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| 215 | */
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| 216 | Inline CLOCK
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| 217 | sh2_timer_get_current ()
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| 218 | {
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| 219 | CLOCK clk;
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| 220 | CLOCK up, low;
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| 221 |
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| 222 |
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| 223 | up = sil_reb_mem (FRT_FRCH);
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| 224 | low = sil_reb_mem (FRT_FRCL);
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| 225 | clk = (up << 8) | low;
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| 226 | return (clk);
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| 227 | }
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| 228 |
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| 229 | /*
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| 230 | * ã¿ã¤ãå²è¾¼ã¿è¦æ±ã®ãã§ãã¯
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| 231 | */
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| 232 | Inline BOOL
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| 233 | sh2_timer_fetch_interrupt ()
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| 234 | {
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| 235 | return (sil_reb_mem (FRT_FTCSR) & 0x08);
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| 236 | }
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| 237 |
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| 238 | #endif /* _MACRO_ONLY */
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| 239 | #endif /* _SH7615FRT_H_ */
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