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) 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) 2006-2015 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»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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13 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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14 | * å¤ã»åé
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15 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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16 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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17 | * 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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18 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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19 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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20 | * ç¨ã§ããå½¢ã§åé
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21 | å¸ããå ´åã«ã¯ï¼åé
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22 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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23 | * è
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24 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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25 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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26 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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27 | * ç¨ã§ããªãå½¢ã§åé
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28 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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29 | * ã¨ï¼
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30 | * (a) åé
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31 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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32 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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33 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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34 | * (b) åé
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35 | å¸ã®å½¢æ
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36 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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37 | * å ±åãããã¨ï¼
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38 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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39 | * 害ãããï¼ä¸è¨èä½æ¨©è
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40 | ããã³TOPPERSããã¸ã§ã¯ããå
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41 | 責ãããã¨ï¼
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42 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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43 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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44 | ããã³TOPPERSããã¸ã§ã¯ãã
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45 | * å
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46 | 責ãããã¨ï¼
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47 | *
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48 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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49 | ã
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50 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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51 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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52 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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53 | * ã®è²¬ä»»ãè² ããªãï¼
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54 | *
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55 | * $Id: uart_pl011.h 359 2015-07-26 10:27:20Z ertl-hiro $
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56 | */
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57 |
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58 | /*
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59 | * ARM PrimCell UARTï¼PL011ï¼ç¨ ç°¡æSIOãã©ã¤ã
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60 | */
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61 |
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62 | #ifndef TOPPERS_UART_PL011_H
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63 | #define TOPPERS_UART_PL011_H
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64 |
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65 | #include <sil.h>
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66 |
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67 | /*
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68 | * ã·ãªã¢ã«I/Oãã¼ãæ°ã®å®ç¾©
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69 | */
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70 | #define TNUM_SIOP 1 /* ãµãã¼ãããã·ãªã¢ã«I/Oãã¼ãã®æ° */
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71 |
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72 | #ifndef TOPPERS_MACRO_ONLY
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73 |
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74 | /*
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75 | * ã·ãªã¢ã«I/Oãã¼ã管çãããã¯ã®å®ç¾©
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76 | */
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77 | typedef struct sio_port_control_block SIOPCB;
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78 |
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79 | /*
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80 | * ã³ã¼ã«ããã¯ã«ã¼ãã³ã®èå¥çªå·
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81 | */
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82 | #define SIO_RDY_SND 1U /* éä¿¡å¯è½ã³ã¼ã«ãã㯠*/
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83 | #define SIO_RDY_RCV 2U /* åä¿¡éç¥ã³ã¼ã«ãã㯠*/
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84 |
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85 | /*
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86 | * UARTã¬ã¸ã¹ã¿ã®çªå°ã®å®ç¾©
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87 | */
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88 | #define UART_DR(base) ((uint32_t *)((base) + 0x00U))
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89 | #define UART_RSR(base) ((uint32_t *)((base) + 0x04U))
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90 | #define UART_ECR(base) ((uint32_t *)((base) + 0x04U))
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91 | #define UART_FR(base) ((uint32_t *)((base) + 0x18U))
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92 | #define UART_IBRD(base) ((uint32_t *)((base) + 0x24U))
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93 | #define UART_FBRD(base) ((uint32_t *)((base) + 0x28U))
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94 | #define UART_LCR_H(base) ((uint32_t *)((base) + 0x2cU))
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95 | #define UART_CR(base) ((uint32_t *)((base) + 0x30U))
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96 | #define UART_IFLS(base) ((uint32_t *)((base) + 0x34U))
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97 | #define UART_IMSC(base) ((uint32_t *)((base) + 0x38U))
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98 | #define UART_RIS(base) ((uint32_t *)((base) + 0x3cU))
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99 | #define UART_MIS(base) ((uint32_t *)((base) + 0x40U))
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100 | #define UART_ICR(base) ((uint32_t *)((base) + 0x44U))
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101 |
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102 | /*
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103 | * ãã©ã°ã¬ã¸ã¹ã¿ï¼UART_FRï¼ã®åç
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104 | §å¤
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105 | */
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106 | #define UART_FR_RXFE UINT_C(0x10) /* åä¿¡ãããã¡ã空 */
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107 | #define UART_FR_TXFF UINT_C(0x20) /* éä¿¡ãããã¡ããã« */
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108 |
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109 | /*
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110 | * ã©ã¤ã³å¶å¾¡ã¬ã¸ã¹ã¿ï¼UART_LCR_Hï¼ã®è¨å®å¤
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111 | */
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112 | #define UART_LCR_H_PEN UINT_C(0x02) /* ããªãã£ãç¨ãã */
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113 | #define UART_LCR_H_EPS UINT_C(0x04) /* å¶æ°ããªãã£ã« */
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114 | #define UART_LCR_H_STP2 UINT_C(0x08) /* ã¹ããããããã2ãããã« */
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115 | #define UART_LCR_H_FEN UINT_C(0x10) /* FIFOãæå¹ã« */
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116 | #define UART_LCR_H_WLEN8 UINT_C(0x60) /* ãã¼ã¿é·ã8ãããã« */
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117 |
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118 | /*
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119 | * å¶å¾¡ã¬ã¸ã¹ã¿ï¼UART_CRï¼ã®è¨å®å¤
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120 | */
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121 | #define UART_CR_UARTEN UINT_C(0x0001) /* UARTãã¤ãã¼ãã«ã« */
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122 | #define UART_CR_TXE UINT_C(0x0100) /* éä¿¡ãã¤ãã¼ãã«ã« */
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123 | #define UART_CR_RXE UINT_C(0x0200) /* åä¿¡ãã¤ãã¼ãã«ã« */
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124 |
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125 | /*
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126 | * å²è¾¼ã¿ãã¹ã¯ã»ããï¼ã¯ãªã¢ã¬ã¸ã¹ã¿ï¼UART_IMSCï¼ã®è¨å®å¤
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127 | */
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128 | #define UART_IMSC_RXIM UINT_C(0x0010) /* åä¿¡å²è¾¼ã¿ãã¹ã¯ */
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129 | #define UART_IMSC_TXIM UINT_C(0x0020) /* éä¿¡å²è¾¼ã¿ãã¹ã¯ */
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130 |
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131 | /*
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132 | * ããªããã£ããªéä¿¡ï¼åä¿¡é¢æ°
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133 | */
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134 |
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135 | /*
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136 | * åä¿¡ãããã¡ã«æåããããï¼
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137 | */
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138 | Inline bool_t
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139 | uart_pl011_getready(uintptr_t base)
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140 | {
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141 | return((sil_rew_mem(UART_FR(base)) & UART_FR_RXFE) == 0U);
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142 | }
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143 |
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144 | /*
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145 | * éä¿¡ãããã¡ã«ç©ºãããããï¼
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146 | */
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147 | Inline bool_t
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148 | uart_pl011_putready(uintptr_t base)
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149 | {
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150 | return((sil_rew_mem(UART_FR(base)) & UART_FR_TXFF) == 0U);
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151 | }
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152 |
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153 | /*
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154 | * åä¿¡ããæåã®ååºã
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155 | */
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156 | Inline char
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157 | uart_pl011_getchar(uintptr_t base)
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158 | {
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159 | return((char) sil_rew_mem(UART_DR(base)));
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160 | }
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161 |
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162 | /*
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163 | * éä¿¡ããæåã®æ¸è¾¼ã¿
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164 | */
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165 | Inline void
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166 | uart_pl011_putchar(uintptr_t base, char c)
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167 | {
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168 | sil_wrw_mem(UART_DR(base), (uint32_t) c);
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169 | }
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170 |
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171 | /*
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172 | * ã·ãªã¢ã«ã¤ã³ã¿ãã§ã¼ã¹ãã©ã¤ãã«æä¾ããæ©è½
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173 | */
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174 |
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175 | /*
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176 | * SIOãã©ã¤ãã®åæåã«ã¼ãã³
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177 | */
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178 | extern void uart_pl011_initialize(void);
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179 |
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180 | /*
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181 | * SIOã®å²è¾¼ã¿ãµã¼ãã¹ã«ã¼ãã³
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182 | */
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183 | extern void uart_pl011_isr(void);
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184 |
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185 | /*
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186 | * ã·ãªã¢ã«I/Oãã¼ãã®ãªã¼ãã³
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187 | */
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188 | extern SIOPCB *uart_pl011_opn_por(ID siopid, intptr_t exinf);
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189 |
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190 | /*
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191 | * ã·ãªã¢ã«I/Oãã¼ãã®ã¯ãã¼ãº
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192 | */
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193 | extern void uart_pl011_cls_por(SIOPCB *siopcb);
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194 |
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195 | /*
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196 | * ã·ãªã¢ã«I/Oãã¼ãã¸ã®æåéä¿¡
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197 | */
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198 | extern bool_t uart_pl011_snd_chr(SIOPCB *siopcb, char c);
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199 |
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200 | /*
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201 | * ã·ãªã¢ã«I/Oãã¼ãããã®æååä¿¡
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202 | */
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203 | extern int_t uart_pl011_rcv_chr(SIOPCB *siopcb);
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204 |
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205 | /*
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206 | * ã·ãªã¢ã«I/Oãã¼ãããã®ã³ã¼ã«ããã¯ã®è¨±å¯
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207 | */
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208 | extern void uart_pl011_ena_cbr(SIOPCB *siopcb, uint_t cbrtn);
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209 |
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210 | /*
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211 | * ã·ãªã¢ã«I/Oãã¼ãããã®ã³ã¼ã«ããã¯ã®ç¦æ¢
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212 | */
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213 | extern void uart_pl011_dis_cbr(SIOPCB *siopcb, uint_t cbrtn);
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214 |
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215 | /*
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216 | * ã·ãªã¢ã«I/Oãã¼ãããã®éä¿¡å¯è½ã³ã¼ã«ããã¯
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217 | */
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218 | extern void uart_pl011_irdy_snd(intptr_t exinf);
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219 |
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220 | /*
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221 | * ã·ãªã¢ã«I/Oãã¼ãããã®åä¿¡éç¥ã³ã¼ã«ããã¯
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222 | */
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223 | extern void uart_pl011_irdy_rcv(intptr_t exinf);
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224 |
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225 | #endif /* TOPPERS_MACRO_ONLY */
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226 | #endif /* TOPPERS_UART_PL011_H */
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