[363] | 1 | /*
|
---|
| 2 | * TOPPERS/JSP Kernel
|
---|
| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
|
---|
| 4 | * Just Standard Profile Kernel
|
---|
| 5 | *
|
---|
| 6 | * Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
|
---|
| 7 | * Toyohashi Univ. of Technology, JAPAN
|
---|
| 8 | * Copyright (C) 2000-2003 by Industrial Technology Institute,
|
---|
| 9 | * Miyagi Prefectural Government, JAPAN
|
---|
| 10 | *
|
---|
| 11 | * ä¸è¨èä½æ¨©è
|
---|
| 12 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
|
---|
| 13 | * ã«ãã£ã¦å
|
---|
| 14 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
|
---|
| 15 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
|
---|
| 16 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
|
---|
| 17 | å¸ï¼ä»¥ä¸ï¼
|
---|
| 18 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
|
---|
| 19 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
|
---|
| 20 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
|
---|
| 21 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
|
---|
| 22 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
| 23 | * ç¨ã§ããå½¢ã§åé
|
---|
| 24 | å¸ããå ´åã«ã¯ï¼åé
|
---|
| 25 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
|
---|
| 26 | * è
|
---|
| 27 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
|
---|
| 28 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
| 29 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
| 30 | * ç¨ã§ããªãå½¢ã§åé
|
---|
| 31 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
|
---|
| 32 | * ã¨ï¼
|
---|
| 33 | * (a) åé
|
---|
| 34 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
|
---|
| 35 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
|
---|
| 36 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
| 37 | * (b) åé
|
---|
| 38 | å¸ã®å½¢æ
|
---|
| 39 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
|
---|
| 40 | * å ±åãããã¨ï¼
|
---|
| 41 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
|
---|
| 42 | * 害ãããï¼ä¸è¨èä½æ¨©è
|
---|
| 43 | ããã³TOPPERSããã¸ã§ã¯ããå
|
---|
| 44 | 責ãããã¨ï¼
|
---|
| 45 | *
|
---|
| 46 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
|
---|
| 47 | ã
|
---|
| 48 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
|
---|
| 49 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
|
---|
| 50 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
|
---|
| 51 | */
|
---|
| 52 |
|
---|
| 53 | #include "jsp_kernel.h"
|
---|
| 54 | #include <hw_serial.h> /* ãããã¯ã·ãªã¢ã«ã³ã³ããã¼ã©é¢ä¿ */
|
---|
| 55 |
|
---|
| 56 | /* å²è¾¼ã¿ã³ã³ããã¼ã©ã«ç¨ããå²è¾¼ã¿ãã¹ã¯ã®æ¬ä¼¼ãã¼ãã« */
|
---|
| 57 | ICU_IPM icu_intmask_table[ TMAX_ALL_INTNO ];
|
---|
| 58 |
|
---|
| 59 | /*
|
---|
| 60 | * ã¿ã¼ã²ããã·ã¹ãã ä¾å åæåã«ã¼ãã³
|
---|
| 61 | */
|
---|
| 62 | void sys_initialize() {
|
---|
| 63 |
|
---|
| 64 | ICU_IPM icu_ipm0 = {INIT_MSYSINT1, INIT_MSYSINT2};
|
---|
| 65 |
|
---|
| 66 | /*
|
---|
| 67 | * å¤é¨å²è¾¼ã¿ã³ã³ããã¼ã©ã®å²è¾¼ã¿ãã¹ã¯ã®åæå
|
---|
| 68 | */
|
---|
| 69 | icu_set_ipm( &icu_ipm0 );
|
---|
| 70 |
|
---|
| 71 | #ifndef GDB_STUB
|
---|
| 72 |
|
---|
| 73 | /*
|
---|
| 74 | * DSIUã¸ã®ã¯ããã¯ä¾çµ¦éå§
|
---|
| 75 | */
|
---|
| 76 | vr4131_orh( (VP) CMUCLKMSK, (MSKDSIU | MSKSSIU | MSKSIU) );
|
---|
| 77 |
|
---|
| 78 | /*
|
---|
| 79 | * ããã¼è¡¨ç¤ºç¨ã·ãªã¢ã«ã³ã³ããã¼ã©(DSIU)ã®åæå
|
---|
| 80 | */
|
---|
| 81 | sio_init();
|
---|
| 82 |
|
---|
| 83 | #endif /* GDB_STUB */
|
---|
| 84 |
|
---|
| 85 | }
|
---|
| 86 |
|
---|
| 87 | /*
|
---|
| 88 | * ã¿ã¼ã²ããã·ã¹ãã ã®çµäºã«ã¼ãã³
|
---|
| 89 | */
|
---|
| 90 | void sys_exit(void) {
|
---|
| 91 |
|
---|
| 92 | #ifndef GDB_STUB
|
---|
| 93 | while (1);
|
---|
| 94 | #else /* GDB_STUB */
|
---|
| 95 | vr4131_exit();
|
---|
| 96 | #endif /* GDB_STUB */
|
---|
| 97 |
|
---|
| 98 | }
|
---|
| 99 |
|
---|
| 100 | /*
|
---|
| 101 | * GDB STUB / ç´æ¥å¼åºã ã³ã³ã½ã¼ã«å¼åºãã«ã¼ãã³
|
---|
| 102 | */
|
---|
| 103 |
|
---|
| 104 | /*
|
---|
| 105 | * gdb stub ã«ããã³ã³ã½ã¼ã«åºå
|
---|
| 106 | */
|
---|
| 107 | /* a0($4) = 0xfe00, a1($5) = åºåããããã£ã©ã¯ã¿ ã代å
|
---|
| 108 | ¥ãã¦ã
|
---|
| 109 | SYSCALL ä¾å¤ãçºçãããã */
|
---|
| 110 |
|
---|
| 111 | /* ãã®é¢æ°ãå¼ã³åºãæã«ã¯ãã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿ã®EXLããã = 0 ã§å¼ã³åºããã¨ã
|
---|
| 112 | ãªããç¾å¨ãã«ã¼ãã«ã§ã¯ãããã¼è¡¨ç¤ºæãã·ãªã¢ã«åºåæã«å¼åºãè¡ã£ã¦ããã*/
|
---|
| 113 | void stub_putc(int c) {
|
---|
| 114 |
|
---|
| 115 | Asm(" move $5, %0; \
|
---|
| 116 | li $4, 0xfe00; \
|
---|
| 117 | syscall; \
|
---|
| 118 | nop"
|
---|
| 119 | :: "r"(c)
|
---|
| 120 | : "$4","$5" );
|
---|
| 121 | }
|
---|
| 122 |
|
---|
| 123 | #ifdef GDB_STUB /* GDB_STUB ã®å ´å */
|
---|
| 124 | #define vr4131_putc(c) stub_putc( c )
|
---|
| 125 | #else /* GDB_STUB */ /* ãã®ä» */
|
---|
| 126 | #define vr4131_putc(c) sio_snd_chr_pol( c )
|
---|
| 127 | #endif /* GDB_STUB */
|
---|
| 128 |
|
---|
| 129 | /*
|
---|
| 130 | * ã·ã¹ãã æååºåå
|
---|
| 131 | ã®æå®
|
---|
| 132 | */
|
---|
| 133 | void sys_putc(char c) {
|
---|
| 134 |
|
---|
| 135 | if (c == '\n') {
|
---|
| 136 | vr4131_putc('\r');
|
---|
| 137 | }
|
---|
| 138 | vr4131_putc(c);
|
---|
| 139 | }
|
---|
| 140 |
|
---|
| 141 | /*============================================================================*/
|
---|