[384] | 1 | /*
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| 2 | * TOPPERS/SSP Kernel
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| 3 | * Smallest Set Profile Kernel
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| 4 | *
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| 5 | * Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
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| 6 | * Toyohashi Univ. of Technology, JAPAN
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| 7 | * Copyright (C) 2005-2007 by Embedded and Real-Time Systems Laboratory
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| 8 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 9 | * Copyright (C) 2012 Meika Sugimoto
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| 10 | * Copyright (C) 2015,2018,2019 by Naoki Saito
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| 11 | * Nagoya Municipal Industrial Research Institute, JAPAN
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| 12 | *
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| 13 | * ä¸è¨èä½æ¨©è
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| 14 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 15 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 16 | * å¤ã»åé
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| 17 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 18 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 19 | * 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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| 20 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 21 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 22 | * ç¨ã§ããå½¢ã§åé
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| 23 | å¸ããå ´åã«ã¯ï¼åé
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| 24 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 25 | * è
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| 26 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 27 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 28 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 29 | * ç¨ã§ããªãå½¢ã§åé
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| 30 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 31 | * ã¨ï¼
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| 32 | * (a) åé
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| 33 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 34 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 35 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 36 | * (b) åé
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| 37 | å¸ã®å½¢æ
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| 38 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 39 | * å ±åãããã¨ï¼
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| 40 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 41 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 42 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 43 | 責ãããã¨ï¼
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| 44 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 45 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 46 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 47 | * å
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| 48 | 責ãããã¨ï¼
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| 49 | *
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| 50 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 51 | ã
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| 52 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 53 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 54 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 55 | * ã®è²¬ä»»ãè² ããªãï¼
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| 56 | *
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| 57 | */
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| 58 |
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| 59 | /*
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| 60 | * ã¿ã¼ã²ããä¾åã¢ã¸ã¥ã¼ã«(RPI_ARM64ç¨)
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| 61 | */
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| 62 | #include "kernel_impl.h"
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| 63 | #include <sil.h>
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| 64 | #include "target_serial.h"
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| 65 | #include "target_syssvc.h"
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| 66 |
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| 67 | /*
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| 68 | * ã¿ã¼ã²ããä¾åé¨ãåæåå¦ç
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| 69 | */
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| 70 | void target_initialize(void)
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| 71 | {
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| 72 | volatile uint32_t tmp;
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| 73 |
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| 74 | /*
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| 75 | * GPIOãã³ãUART0ã¨ãã¦å©ç¨ããããã®è¨å®
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| 76 | */
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| 77 | tmp = sil_rew_mem((uint32_t *)GPFSEL1);
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| 78 | tmp &= ~((7<<12)|(7<<15)); // gpio14, gpio15
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| 79 | tmp |= ((4<<12)|(4<<15)); // alt0
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| 80 | sil_wrw_mem((uint32_t *)GPFSEL1, tmp);
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| 81 |
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| 82 | sil_wrw_mem((uint32_t *)GPPUD, 0); // enable pins 14 and 15
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| 83 | for (tmp = 0; tmp < 150; tmp++) {
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| 84 | Asm("nop");
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| 85 | }
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| 86 | sil_wrw_mem((uint32_t *)GPPUDCLK0, (1<<14)|(1<<15));
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| 87 | for (tmp = 0; tmp < 150; tmp++) {
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| 88 | Asm("nop");
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| 89 | }
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| 90 | sil_wrw_mem((uint32_t *)GPPUDCLK0, 0);
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| 91 |
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| 92 | /*
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| 93 | * ä½ã¬ãã«åºåã®ããã®ã·ãªã¢ã«ãã¼ãã®åæå
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| 94 | */
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| 95 | target_low_output_init(1);
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| 96 |
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| 97 | /*
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| 98 | * ãããä¾åé¨ã®åæå
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| 99 | */
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| 100 | chip_initialize();
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| 101 | }
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| 102 |
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| 103 | /*
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| 104 | * ã¿ã¼ã²ããä¾åé¨ çµäºå¦ç
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| 105 | */
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| 106 | void target_exit(void)
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| 107 | {
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| 108 | /* ãããä¾åé¨ã®çµäºå¦ç */
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| 109 | chip_terminate();
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| 110 | }
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| 111 |
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| 112 | /*
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| 113 | * ã·ã¹ãã ãã°ã®ä½ã¬ãã«åºåã®ããã®æååºå
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| 114 | */
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| 115 | void target_fput_log(char c)
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| 116 | {
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| 117 | if (c == '\n') {
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| 118 | sio_pol_snd_chr('\r', SIO_PORTID);
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| 119 | }
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| 120 | sio_pol_snd_chr(c, SIO_PORTID);
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| 121 | }
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