| 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) 2007 by Embedded and Real-Time Systems Laboratory
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| 9 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 10 | *
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| 11 | * ä¸è¨èä½æ¨©è
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| 12 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 13 | * ã«ãã£ã¦å
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| 14 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 15 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 16 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 17 | å¸ï¼ä»¥ä¸ï¼
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| 18 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 19 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 20 | * 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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| 21 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 22 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 23 | * ç¨ã§ããå½¢ã§åé
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| 24 | å¸ããå ´åã«ã¯ï¼åé
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| 25 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 26 | * è
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| 27 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 28 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 29 | * 32 (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 30 | * ç¨ã§ããªãå½¢ã§åé
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| 31 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 32 | * ã¨ï¼
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| 33 | * (a) åé
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| 34 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 35 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 36 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 37 | * (b) åé
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| 38 | å¸ã®å½¢æ
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| 39 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 40 | * å ±åãããã¨ï¼
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| 41 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 42 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 43 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 44 | 責ãããã¨ï¼
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| 45 | *
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| 46 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 47 | ã
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| 48 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 49 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 50 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 51 | *
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| 52 | * @(#) $Id: hw_timer.h,v 1.2 2007/05/28 02:03:55 honda Exp $
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| 53 | */
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| 54 |
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| 55 | /*
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| 56 | * ã¿ã¼ã²ããä¾åã¿ã¤ãã¢ã¸ã¥ã¼ã«ï¼M32R å
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| 57 | èµã¿ã¤ã(MFT0)ç¨ï¼
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| 58 | */
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| 59 |
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| 60 | #ifndef _HW_TIMER_H_
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| 61 | #define _HW_TIMER_H_
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| 62 |
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| 63 | #include <sys_config.h>
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| 64 |
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| 65 | #define WAIT __asm("nop;nop;nop;nop");
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| 66 |
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| 67 | /*
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| 68 | * ã¿ã¤ãå²è¾¼ã¿ãã³ãã©ã®ãã¯ã¿çªå·
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| 69 | */
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| 70 |
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| 71 | #define INHNO_TIMER 20 //INT_MFT0(16) + TIMER_PORT(4)
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| 72 |
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| 73 | #ifndef _MACRO_ONLY
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| 74 |
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| 75 | /*
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| 76 | * ã¿ã¤ãå¤ã®å
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| 77 | é¨è¡¨ç¾ã®å
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| 78 | */
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| 79 | typedef UW CLOCK;
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| 80 |
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| 81 | /*
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| 82 | * ã¿ã¤ãå¤ã®å
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| 83 | é¨è¡¨ç¾ã¨ããªç§ã»Î¼ç§åä½ã¨ã®å¤æ
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| 84 | */
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| 85 | #define TO_CLOCK(nume, deno) (TIMER_CLKCNT * (nume) / (deno))
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| 86 | #define TO_USEC(clock) ((TO_CLOCK(TIC_NUME, TIC_DENO) - (clock)) * 1000 / TIMER_CLKCNT)
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| 87 |
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| 88 | /*
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| 89 | * æ§è½è©ä¾¡ç¨ã·ã¹ãã æå»ãåãåºãéã®å¦çæéã®è¦ç©ãå¤ï¼åä½ã¯å
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| 90 | é¨è¡¨ç¾ï¼
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| 91 | */
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| 92 | #define GET_TOLERANCE 100
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| 93 | #define BEFORE_IREQ(clock) ((clock) <= GET_TOLERANCE)
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| 94 |
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| 95 | /*
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| 96 | * ã¿ã¤ãã®åæå
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| 97 | *
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| 98 | * ã¿ã¤ããåæåãï¼å¨æçãªã¿ã¤ãå²è¾¼ã¿è¦æ±ãçºçãããï¼
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| 99 | */
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| 100 | Inline void
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| 101 | hw_timer_initialize()
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| 102 | {
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| 103 | /* ã¿ã¤ãåæå */
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| 104 | *(volatile unsigned short *)(ICUCR(MFT,TIMER_PORT)+2) = 0x1000;
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| 105 | *(volatile unsigned short *)(MFTMOD(TIMER_PORT)+2) = 0x8001;
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| 106 | *(volatile unsigned short *)(MFTCUT(TIMER_PORT)+2) = TIMER_CLKCNT;
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| 107 | *(volatile unsigned short *)(MFTCR+2) = 0x8080 >> TIMER_PORT;
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| 108 | }
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| 109 |
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| 110 | /*
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| 111 | * ã¿ã¤ãå²è¾¼ã¿è¦æ±ã®ã¯ãªã¢
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| 112 | */
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| 113 | Inline void
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| 114 | hw_timer_int_clear()
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| 115 | {
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| 116 | *(volatile unsigned char *)(ICUCR(MFT,TIMER_PORT)+2) = 0x10;
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| 117 | }
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| 118 |
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| 119 | /*
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| 120 | * ã¿ã¤ãã®åæ¢å¦ç
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| 121 | *
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| 122 | * ã¿ã¤ãã®åä½ãåæ¢ããï¼
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| 123 | */
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| 124 | Inline void
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| 125 | hw_timer_terminate()
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| 126 | {
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| 127 | *(volatile unsigned char *)(ICUCR(MFT,TIMER_PORT)+2) = 0x0;
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| 128 | }
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| 129 |
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| 130 | /*
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| 131 | * ã¿ã¤ãã®ç¾å¨å¤ã®èªåºã
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| 132 | */
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| 133 | Inline CLOCK
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| 134 | hw_timer_get_current(void)
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| 135 | {
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| 136 | return *(volatile unsigned short *)(MFTCUT(TIMER_PORT)+2);
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| 137 | }
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| 138 |
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| 139 | /*
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| 140 | * ã¿ã¤ãå²è¾¼ã¿è¦æ±ã®ãã§ãã¯
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| 141 | */
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| 142 | Inline BOOL
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| 143 | hw_timer_fetch_interrupt(void)
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| 144 | {
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| 145 | return *(volatile unsigned char *)(ICUCR(MFT,TIMER_PORT)+2) & 0x1;
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| 146 | }
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| 147 |
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| 148 | #endif /* _MACRO_ONLY */
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| 149 |
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| 150 | #endif /* _HW_TIMER_H_ */
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