[270] | 1 | /*
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| 2 | * TOPPERS/ASP Kernel
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
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| 4 | * Advanced Standard Profile Kernel
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| 5 | *
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| 6 | * Copyright (C) 2006-2016 by Embedded and Real-Time Systems Laboratory
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| 7 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 8 | *
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| 9 | * ä¸è¨èä½æ¨©è
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| 10 | ã¯ï¼ä»¥ä¸ã®(1)ï½(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 11 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 12 | * å¤ã»åé
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| 13 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 14 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 15 | * 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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| 16 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 17 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 18 | * ç¨ã§ããå½¢ã§åé
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| 19 | å¸ããå ´åã«ã¯ï¼åé
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| 20 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 21 | * è
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| 22 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 23 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 24 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 25 | * ç¨ã§ããªãå½¢ã§åé
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| 26 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 27 | * ã¨ï¼
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| 28 | * (a) åé
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| 29 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 31 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 32 | * (b) åé
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| 33 | å¸ã®å½¢æ
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| 34 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 35 | * å ±åãããã¨ï¼
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| 36 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 37 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 38 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 39 | 責ãããã¨ï¼
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| 40 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 41 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 42 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 43 | * å
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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¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 49 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 50 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 51 | * ã®è²¬ä»»ãè² ããªãï¼
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| 52 | *
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| 53 | * $Id: tSCIF.c 270 2017-02-09 04:03:47Z coas-nagasima $
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| 54 | */
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| 55 |
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| 56 | /*
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| 57 | * FIFOå
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| 58 | èµã·ãªã¢ã«ã³ãã¥ãã±ã¼ã·ã§ã³ã¤ã³ã¿ãã§ã¼ã¹ç¨ ç°¡æSIOãã©ã¤ã
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| 59 | */
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| 60 |
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| 61 | #include <sil.h>
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| 62 | #include "tSCIF_tecsgen.h"
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| 63 | #include "scif.h"
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| 64 |
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| 65 | /*
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| 66 | * ããªããã£ããªéä¿¡ï¼åä¿¡é¢æ°
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| 67 | */
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| 68 |
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| 69 | /*
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| 70 | * åä¿¡ãããã¡ã«æåããããï¼
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| 71 | */
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| 72 | Inline bool_t
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| 73 | scif_getready(CELLCB *p_cellcb)
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| 74 | {
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| 75 | uint16_t fsr;
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| 76 | uint16_t lsr;
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| 77 |
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| 78 | fsr = sil_reh_mem(SCIF_SCFSR(ATTR_baseAddress));
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| 79 | lsr = sil_reh_mem(SCIF_SCLSR(ATTR_baseAddress));
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| 80 | if ((fsr & (SCIF_SCFSR_ER|SCIF_SCFSR_BRK)) != 0U) {
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| 81 | fsr &= ~(SCIF_SCFSR_ER|SCIF_SCFSR_BRK);
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| 82 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress), fsr);
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| 83 | }
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| 84 | if ((lsr & SCIF_SCLSR_ORER) != 0U) {
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| 85 | lsr &= ~(SCIF_SCLSR_ORER);
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| 86 | sil_wrh_mem(SCIF_SCLSR(ATTR_baseAddress), lsr);
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| 87 | }
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| 88 | return((fsr & SCIF_SCFSR_RDF) != 0U);
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| 89 | }
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| 90 |
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| 91 | /*
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| 92 | * éä¿¡ãããã¡ã«ç©ºãããããï¼
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| 93 | */
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| 94 | Inline bool_t
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| 95 | scif_putready(CELLCB *p_cellcb)
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| 96 | {
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| 97 | uint16_t fsr;
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| 98 |
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| 99 | fsr = sil_reh_mem(SCIF_SCFSR(ATTR_baseAddress));
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| 100 | return((fsr & SCIF_SCFSR_TDFE) != 0U);
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| 101 | }
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| 102 |
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| 103 | /*
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| 104 | * åä¿¡ããæåã®ååºã
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| 105 | */
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| 106 | Inline bool_t
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| 107 | scif_getchar(CELLCB *p_cellcb, char *p_c)
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| 108 | {
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| 109 | uint16_t fsr;
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| 110 | uint16_t lsr;
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| 111 |
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| 112 | fsr = sil_reh_mem(SCIF_SCFSR(ATTR_baseAddress));
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| 113 | lsr = sil_reh_mem(SCIF_SCLSR(ATTR_baseAddress));
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| 114 | if ((fsr & (SCIF_SCFSR_ER|SCIF_SCFSR_BRK)) != 0U) {
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| 115 | fsr &= ~(SCIF_SCFSR_ER|SCIF_SCFSR_BRK);
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| 116 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress), fsr);
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| 117 | }
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| 118 | if ((lsr & SCIF_SCLSR_ORER) != 0U) {
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| 119 | lsr &= ~(SCIF_SCLSR_ORER);
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| 120 | sil_wrh_mem(SCIF_SCLSR(ATTR_baseAddress), lsr);
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| 121 | }
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| 122 | if ((fsr & SCIF_SCFSR_RDF) != 0U) {
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| 123 | *p_c = (char) sil_reb_mem(SCIF_SCFRDR(ATTR_baseAddress));
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| 124 | fsr &= ~(SCIF_SCFSR_RDF);
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| 125 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress), fsr);
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| 126 | return(true);
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| 127 | }
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| 128 | return(false);
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| 129 | }
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| 130 |
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| 131 | /*
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| 132 | * éä¿¡ããæåã®æ¸è¾¼ã¿
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| 133 | */
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| 134 | Inline void
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| 135 | scif_putchar(CELLCB *p_cellcb, char c)
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| 136 | {
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| 137 | sil_wrb_mem(SCIF_SCFTDR(ATTR_baseAddress), c);
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| 138 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress),
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| 139 | (uint16_t) ~(SCIF_SCFSR_TEND|SCIF_SCFSR_TDFE));
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| 140 | }
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| 141 |
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| 142 | /*
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| 143 | * ã·ãªã¢ã«I/Oãã¼ãã®ãªã¼ãã³
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| 144 | */
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| 145 | void
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| 146 | eSIOPort_open(CELLIDX idx)
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| 147 | {
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| 148 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 149 | uint_t brr;
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| 150 |
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| 151 | if (VAR_initialized) {
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| 152 | /*
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| 153 | * æ¢ã«åæåãã¦ããå ´åã¯ãäºéã«åæåããªãï¼
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| 154 | */
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| 155 | return;
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| 156 | }
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| 157 |
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| 158 | brr = SCIF_CLK / (32 * ATTR_baudRate) - 1;
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| 159 | assert(brr <= 255);
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| 160 |
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| 161 | sil_wrh_mem(SCIF_SCSCR(ATTR_baseAddress), 0U);
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| 162 | sil_wrh_mem(SCIF_SCFCR(ATTR_baseAddress),
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| 163 | SCIF_SCFCR_TFRST|SCIF_SCFCR_RFRST);
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| 164 | (void) sil_reh_mem(SCIF_SCFSR(ATTR_baseAddress));
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| 165 | (void) sil_reh_mem(SCIF_SCLSR(ATTR_baseAddress));
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| 166 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress), 0U);
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| 167 | sil_wrh_mem(SCIF_SCLSR(ATTR_baseAddress), 0U);
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| 168 | sil_wrh_mem(SCIF_SCSCR(ATTR_baseAddress), SCIF_SCSCR_INTCLK);
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| 169 | sil_wrh_mem(SCIF_SCSMR(ATTR_baseAddress), SCIF_SCSMR_CKS1);
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| 170 | sil_wrh_mem(SCIF_SCEMR(ATTR_baseAddress), 0U);
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| 171 | sil_wrb_mem(SCIF_SCBRR(ATTR_baseAddress), (uint8_t) brr);
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| 172 | sil_wrh_mem(SCIF_SCFCR(ATTR_baseAddress),
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| 173 | SCIF_SCFCR_RSTRG_15|SCIF_SCFCR_RTRG_1|SCIF_SCFCR_TTRG_8);
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| 174 | sil_wrh_mem(SCIF_SCSCR(ATTR_baseAddress),
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| 175 | SCIF_SCSCR_TE|SCIF_SCSCR_RE|SCIF_SCSCR_INTCLK);
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| 176 |
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| 177 | while ((sil_reh_mem(SCIF_SCFSR(ATTR_baseAddress)) & SCIF_SCFSR_RDF) != 0U) {
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| 178 | (void) sil_reb_mem(SCIF_SCFRDR(ATTR_baseAddress));
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| 179 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress), (uint16_t) ~(SCIF_SCFSR_RDF));
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| 180 | }
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| 181 | sil_wrh_mem(SCIF_SCFSR(ATTR_baseAddress), 0U);
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| 182 |
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| 183 | VAR_initialized = true;
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| 184 | }
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| 185 |
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| 186 | /*
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| 187 | * ã·ãªã¢ã«I/Oãã¼ãã®ã¯ãã¼ãº
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| 188 | */
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| 189 | void
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| 190 | eSIOPort_close(CELLIDX idx)
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| 191 | {
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| 192 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 193 |
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| 194 | sil_wrh_mem(SCIF_SCSCR(ATTR_baseAddress), 0U);
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| 195 | }
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| 196 |
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| 197 | /*
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| 198 | * ã·ãªã¢ã«I/Oãã¼ãã¸ã®æåéä¿¡
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| 199 | */
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| 200 | bool_t
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| 201 | eSIOPort_putChar(CELLIDX idx, char c)
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| 202 | {
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| 203 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 204 |
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| 205 | if (scif_putready(p_cellcb)){
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| 206 | scif_putchar(p_cellcb, c);
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| 207 | return(true);
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| 208 | }
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| 209 | return(false);
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| 210 | }
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| 211 |
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| 212 | /*
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| 213 | * ã·ãªã¢ã«I/Oãã¼ãããã®æååä¿¡
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| 214 | */
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| 215 | int_t
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| 216 | eSIOPort_getChar(CELLIDX idx)
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| 217 | {
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| 218 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 219 | char c;
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| 220 |
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| 221 | if (scif_getready(p_cellcb)) {
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| 222 | if (scif_getchar(p_cellcb, &c)) {
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| 223 | return((int_t) c);
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| 224 | }
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| 225 | }
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| 226 | return(-1);
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| 227 | }
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| 228 |
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| 229 | /*
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| 230 | * ã·ãªã¢ã«I/Oãã¼ãããã®ã³ã¼ã«ããã¯ã®è¨±å¯
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| 231 | */
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| 232 | void
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| 233 | eSIOPort_enableCBR(CELLIDX idx, uint_t cbrtn)
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| 234 | {
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| 235 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 236 | uint16_t scr;
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| 237 |
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| 238 | scr = sil_reh_mem(SCIF_SCSCR(ATTR_baseAddress));
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| 239 | switch (cbrtn) {
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| 240 | case SIOSendReady:
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| 241 | scr |= SCIF_SCSCR_TIE;
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| 242 | break;
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| 243 | case SIOReceiveReady:
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| 244 | scr |= SCIF_SCSCR_RIE;
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| 245 | break;
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| 246 | }
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| 247 | sil_wrh_mem(SCIF_SCSCR(ATTR_baseAddress), scr);
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| 248 | }
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| 249 |
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| 250 | /*
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| 251 | * ã·ãªã¢ã«I/Oãã¼ãããã®ã³ã¼ã«ããã¯ã®ç¦æ¢
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| 252 | */
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| 253 | void
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| 254 | eSIOPort_disableCBR(CELLIDX idx, uint_t cbrtn)
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| 255 | {
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| 256 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 257 | uint16_t scr;
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| 258 |
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| 259 | scr = sil_reh_mem(SCIF_SCSCR(ATTR_baseAddress));
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| 260 | switch (cbrtn) {
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| 261 | case SIOSendReady:
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| 262 | scr &= ~(SCIF_SCSCR_TIE);
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| 263 | break;
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| 264 | case SIOReceiveReady:
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| 265 | scr &= ~(SCIF_SCSCR_RIE);
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| 266 | break;
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| 267 | }
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| 268 | sil_wrh_mem(SCIF_SCSCR(ATTR_baseAddress), scr);
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| 269 | }
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| 270 |
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| 271 | /*
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| 272 | * ã·ãªã¢ã«I/Oãã¼ãã«å¯¾ããåä¿¡å²è¾¼ã¿å¦ç
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| 273 | */
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| 274 | void
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| 275 | eiRxISR_main(CELLIDX idx)
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| 276 | {
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| 277 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 278 |
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| 279 | if (scif_getready(p_cellcb)) {
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| 280 | /*
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| 281 | * åä¿¡éç¥ã³ã¼ã«ããã¯ã«ã¼ãã³ãå¼ã³åºãï¼
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| 282 | */
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| 283 | ciSIOCBR_readyReceive();
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| 284 | }
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| 285 | }
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| 286 |
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| 287 | /*
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| 288 | * ã·ãªã¢ã«I/Oãã¼ãã«å¯¾ããéä¿¡å²è¾¼ã¿å¦ç
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| 289 | */
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| 290 | void
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| 291 | eiTxISR_main(CELLIDX idx)
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| 292 | {
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| 293 | CELLCB *p_cellcb = GET_CELLCB(idx);
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| 294 |
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| 295 | if (scif_putready(p_cellcb)) {
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| 296 | /*
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| 297 | * éä¿¡å¯è½ã³ã¼ã«ããã¯ã«ã¼ãã³ãå¼ã³åºãï¼
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| 298 | */
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| 299 | ciSIOCBR_readySend();
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| 300 | }
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| 301 | }
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