[7f96eef] | 1 | /* |
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| 2 | * console.c |
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| 3 | * |
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| 4 | * This file contains the Sparc Instruction Simulator Console driver. |
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| 5 | * |
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| 6 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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| 7 | * On-Line Applications Research Corporation (OAR). |
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| 8 | * All rights assigned to U.S. Government, 1994. |
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| 9 | * |
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| 10 | * This material may be reproduced by or for the U.S. Government pursuant |
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| 11 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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| 12 | * notice must appear in all copies of this file and its derivatives. |
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| 13 | * |
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| 14 | * Ported to ERC32 implementation of the SPARC by On-Line Applications |
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| 15 | * Research Corporation (OAR) under contract to the European Space |
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| 16 | * Agency (ESA). |
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| 17 | * |
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| 18 | * ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995. |
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| 19 | * European Space Agency. |
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| 20 | * |
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| 21 | * $Id$ |
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| 22 | */ |
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| 23 | |
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| 24 | #include <bsp.h> |
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| 25 | #include <rtems/libio.h> |
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| 26 | #include <stdlib.h> |
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| 27 | |
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| 28 | /* |
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| 29 | * Define RDB_BREAK_IN if you need to be able to break in to the |
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| 30 | * program with a ctrl-c during remote target debugging. If so, |
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| 31 | * UART B will not be accessible from rtems during remote debugging |
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| 32 | * if interrupt driven console is used. Does not affect UART A, polled |
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| 33 | * mode or when the program runs without remote debugging. |
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| 34 | */ |
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| 35 | |
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| 36 | #define RDB_BREAK_IN |
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| 37 | |
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| 38 | /* |
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| 39 | * This is a kludge so the tests run without stopping to ask for input. |
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| 40 | * It makes it possible to run the RTEMS tests without human intervention. |
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| 41 | */ |
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| 42 | |
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| 43 | /* |
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| 44 | #define CONSOLE_FAKE_INPUT |
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| 45 | */ |
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| 46 | |
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| 47 | /* |
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| 48 | * Should we use a polled or interrupt drived console? |
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| 49 | * |
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| 50 | * NOTE: Define only one of these by default. |
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| 51 | * |
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| 52 | * WARNING: As of sis 1.6, it did not appear that the UART interrupts |
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| 53 | * worked in a desirable fashion. Immediately upon writing |
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| 54 | * a character into the TX buffer, an interrupt was generated. |
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| 55 | * This did not allow enough time for the program to put more |
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| 56 | * characters in the buffer. So every character resulted in |
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| 57 | * "priming" the transmitter. This effectively results in |
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| 58 | * in a polled console with a useless interrupt per character |
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| 59 | * on output. It is reasonable to assume that input does not |
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| 60 | * share this problem although it was not investigated. |
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| 61 | */ |
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| 62 | |
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| 63 | #ifdef CONSOLE_USE_POLLED |
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| 64 | #define OUTBYTE console_outbyte_polled |
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| 65 | #define INBYTE console_inbyte_polled |
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| 66 | #else |
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| 67 | #define OUTBYTE console_outbyte_interrupts |
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| 68 | #define INBYTE console_inbyte_interrupts |
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| 69 | #endif |
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| 70 | |
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| 71 | void console_initialize_interrupts( void ); |
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| 72 | |
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| 73 | /* console_initialize |
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| 74 | * |
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| 75 | * This routine initializes the console IO driver. |
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| 76 | * |
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| 77 | * Input parameters: |
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| 78 | * major - console device major number |
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| 79 | * minor - console device minor number |
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| 80 | * arg - pointer to optional device driver arguments |
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| 81 | * |
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| 82 | * Output parameters: NONE |
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| 83 | * |
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| 84 | * Return values: |
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| 85 | * rtems_device_driver status code |
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| 86 | */ |
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| 87 | |
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| 88 | rtems_device_driver console_initialize( |
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| 89 | rtems_device_major_number major, |
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| 90 | rtems_device_minor_number minor, |
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| 91 | void *arg |
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| 92 | ) |
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| 93 | { |
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| 94 | rtems_status_code status; |
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| 95 | |
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| 96 | status = rtems_io_register_name( |
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| 97 | "/dev/console", |
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| 98 | major, |
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| 99 | (rtems_device_minor_number) 0 |
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| 100 | ); |
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| 101 | |
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| 102 | if (status != RTEMS_SUCCESSFUL) |
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| 103 | rtems_fatal_error_occurred(status); |
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| 104 | |
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| 105 | #ifdef CONSOLE_USE_INTERRUPTS |
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| 106 | console_initialize_interrupts(); |
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| 107 | #endif |
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| 108 | |
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| 109 | return RTEMS_SUCCESSFUL; |
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| 110 | } |
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| 111 | |
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| 112 | /* console_inbyte_polled |
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| 113 | * |
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| 114 | * This routine reads a character from the UART. |
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| 115 | * |
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| 116 | * Input parameters: |
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| 117 | * port - port to read character from |
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| 118 | * |
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| 119 | * Output parameters: NONE |
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| 120 | * |
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| 121 | * Return values: |
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| 122 | * character read from UART |
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| 123 | */ |
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| 124 | |
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| 125 | char console_inbyte_polled( int port ) |
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| 126 | { |
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| 127 | int UStat; |
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| 128 | |
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| 129 | if ( port == 0 ) { |
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| 130 | while (((UStat = ERC32_MEC.UART_Status) & ERC32_MEC_UART_STATUS_DRA) == 0 ) |
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| 131 | if (UStat & ERC32_MEC_UART_STATUS_ERRA) { |
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| 132 | ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA; |
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| 133 | ERC32_MEC.Control = ERC32_MEC.Control; |
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| 134 | } |
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| 135 | return (int) ERC32_MEC.UART_Channel_A; |
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| 136 | } |
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| 137 | |
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| 138 | while (((UStat = ERC32_MEC.UART_Status) & ERC32_MEC_UART_STATUS_DRB) == 0 ) |
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| 139 | if (UStat & ERC32_MEC_UART_STATUS_ERRB) { |
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| 140 | ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB; |
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| 141 | ERC32_MEC.Control = ERC32_MEC.Control; |
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| 142 | } |
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| 143 | return (int) ERC32_MEC.UART_Channel_B; |
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| 144 | } |
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| 145 | |
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| 146 | |
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| 147 | /* console_outbyte_polled |
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| 148 | * |
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| 149 | * This routine transmits a character out. |
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| 150 | * |
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| 151 | * Input parameters: |
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| 152 | * port - port to transmit character to |
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| 153 | * ch - character to be transmitted |
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| 154 | * |
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| 155 | * Output parameters: NONE |
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| 156 | * |
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| 157 | * Return values: NONE |
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| 158 | */ |
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| 159 | |
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| 160 | void console_outbyte_polled( |
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| 161 | int port, |
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| 162 | char ch |
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| 163 | ) |
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| 164 | { |
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| 165 | if ( port == 0 ) { |
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| 166 | while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA) == 0 ); |
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| 167 | ERC32_MEC.UART_Channel_A = (int) ch; |
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| 168 | return; |
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| 169 | } |
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| 170 | |
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| 171 | while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB) == 0 ); |
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| 172 | ERC32_MEC.UART_Channel_B = (int) ch; |
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| 173 | } |
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| 174 | |
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| 175 | /* |
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| 176 | * Interrupt driven console IO |
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| 177 | */ |
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| 178 | |
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| 179 | #ifdef CONSOLE_USE_INTERRUPTS |
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| 180 | |
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| 181 | /* |
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| 182 | * Buffers between task and ISRs |
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| 183 | */ |
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| 184 | |
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| 185 | #include <ringbuf.h> |
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| 186 | |
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| 187 | Ring_buffer_t TX_Buffer[ 2 ]; |
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| 188 | Ring_buffer_t RX_Buffer[ 2 ]; |
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| 189 | boolean Is_TX_active[ 2 ]; |
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| 190 | |
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| 191 | /* |
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| 192 | * console_isr_a |
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| 193 | * |
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| 194 | * This routine is the console interrupt handler for Channel A. |
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| 195 | * |
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| 196 | * Input parameters: |
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| 197 | * vector - vector number |
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| 198 | * |
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| 199 | * Output parameters: NONE |
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| 200 | * |
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| 201 | * Return values: NONE |
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| 202 | */ |
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| 203 | |
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| 204 | rtems_isr console_isr_a( |
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| 205 | rtems_vector_number vector |
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| 206 | ) |
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| 207 | { |
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| 208 | char ch; |
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| 209 | int UStat; |
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| 210 | |
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| 211 | if ( (UStat = ERC32_MEC.UART_Status) & ERC32_MEC_UART_STATUS_DRA ) { |
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| 212 | if (UStat & ERC32_MEC_UART_STATUS_ERRA) { |
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| 213 | ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA; |
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| 214 | ERC32_MEC.Control = ERC32_MEC.Control; |
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| 215 | } |
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| 216 | ch = ERC32_MEC.UART_Channel_A; |
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| 217 | if ( !Ring_buffer_Is_full( &RX_Buffer[ 0 ] ) ) |
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| 218 | Ring_buffer_Add_character( &RX_Buffer[ 0 ], ch ); |
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| 219 | /* else toss it */ |
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| 220 | } |
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| 221 | |
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| 222 | if ( ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA ) { |
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| 223 | if ( !Ring_buffer_Is_empty( &TX_Buffer[ 0 ] ) ) { |
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| 224 | Ring_buffer_Remove_character( &TX_Buffer[ 0 ], ch ); |
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| 225 | ERC32_MEC.UART_Channel_A = (unsigned32) ch; |
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| 226 | } else |
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| 227 | Is_TX_active[ 0 ] = FALSE; |
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| 228 | } |
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| 229 | |
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| 230 | ERC32_Clear_interrupt( ERC32_INTERRUPT_UART_A_RX_TX ); |
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| 231 | } |
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| 232 | |
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| 233 | /* |
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| 234 | * console_isr_b |
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| 235 | * |
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| 236 | * This routine is the console interrupt handler for Channel B. |
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| 237 | * |
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| 238 | * Input parameters: |
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| 239 | * vector - vector number |
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| 240 | * |
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| 241 | * Output parameters: NONE |
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| 242 | * |
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| 243 | * Return values: NONE |
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| 244 | */ |
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| 245 | |
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| 246 | rtems_isr console_isr_b( |
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| 247 | rtems_vector_number vector |
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| 248 | ) |
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| 249 | { |
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| 250 | char ch; |
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| 251 | int UStat; |
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| 252 | |
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| 253 | if ( (UStat = ERC32_MEC.UART_Status) & ERC32_MEC_UART_STATUS_DRB ) { |
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| 254 | if (UStat & ERC32_MEC_UART_STATUS_ERRB) { |
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| 255 | ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB; |
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| 256 | ERC32_MEC.Control = ERC32_MEC.Control; |
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| 257 | } |
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| 258 | ch = ERC32_MEC.UART_Channel_B; |
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| 259 | if ( !Ring_buffer_Is_full( &RX_Buffer[ 1 ] ) ) |
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| 260 | Ring_buffer_Add_character( &RX_Buffer[ 1 ], ch ); |
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| 261 | /* else toss it */ |
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| 262 | } |
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| 263 | |
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| 264 | if ( ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB ) { |
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| 265 | if ( !Ring_buffer_Is_empty( &TX_Buffer[ 1 ] ) ) { |
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| 266 | Ring_buffer_Remove_character( &TX_Buffer[ 1 ], ch ); |
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| 267 | ERC32_MEC.UART_Channel_B = (unsigned32) ch; |
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| 268 | } else |
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| 269 | Is_TX_active[ 1 ] = FALSE; |
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| 270 | } |
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| 271 | |
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| 272 | ERC32_Clear_interrupt( ERC32_INTERRUPT_UART_B_RX_TX ); |
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| 273 | } |
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| 274 | |
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| 275 | /* |
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| 276 | * console_exit |
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| 277 | * |
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| 278 | * This routine allows the console to exit by masking its associated interrupt |
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| 279 | * vectors. |
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| 280 | * |
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| 281 | * Input parameters: NONE |
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| 282 | * |
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| 283 | * Output parameters: NONE |
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| 284 | * |
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| 285 | * Return values: NONE |
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| 286 | */ |
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| 287 | |
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| 288 | void console_exit() |
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| 289 | { |
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| 290 | rtems_unsigned32 port; |
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| 291 | rtems_unsigned32 ch; |
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| 292 | |
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| 293 | /* |
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| 294 | * Although the interrupts for the UART are unmasked, the PIL is set to |
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| 295 | * disable all external interrupts. So we might as well do this first. |
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| 296 | */ |
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| 297 | |
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| 298 | ERC32_Mask_interrupt( ERC32_INTERRUPT_UART_A_RX_TX ); |
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| 299 | ERC32_Mask_interrupt( ERC32_INTERRUPT_UART_B_RX_TX ); |
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| 300 | |
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| 301 | for ( port=0 ; port <= 1 ; port++ ) { |
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| 302 | while ( !Ring_buffer_Is_empty( &TX_Buffer[ port ] ) ) { |
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| 303 | Ring_buffer_Remove_character( &TX_Buffer[ port ], ch ); |
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| 304 | console_outbyte_polled( port, ch ); |
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| 305 | } |
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| 306 | } |
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| 307 | |
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| 308 | /* |
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| 309 | * Now wait for all the data to actually get out ... the send register |
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| 310 | * should be empty. |
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| 311 | */ |
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| 312 | |
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| 313 | while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA) != |
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| 314 | ERC32_MEC_UART_STATUS_THEA ); |
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| 315 | |
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| 316 | while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB) != |
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| 317 | ERC32_MEC_UART_STATUS_THEB ); |
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| 318 | |
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| 319 | } |
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| 320 | |
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| 321 | #define CONSOLE_UART_A_TRAP ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_A_RX_TX ) |
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| 322 | #define CONSOLE_UART_B_TRAP ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_B_RX_TX ) |
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| 323 | |
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| 324 | /* |
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| 325 | * console_initialize_interrupts |
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| 326 | * |
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| 327 | * This routine initializes the console's receive and transmit |
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| 328 | * ring buffers and loads the appropriate vectors to handle the interrupts. |
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| 329 | * |
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| 330 | * Input parameters: NONE |
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| 331 | * |
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| 332 | * Output parameters: NONE |
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| 333 | * |
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| 334 | * Return values: NONE |
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| 335 | */ |
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| 336 | |
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| 337 | #ifdef RDB_BREAK_IN |
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[2f93371] | 338 | extern unsigned32 trap_table[]; |
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[7f96eef] | 339 | #endif |
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| 340 | |
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| 341 | void console_initialize_interrupts() |
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| 342 | { |
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| 343 | Ring_buffer_Initialize( &RX_Buffer[ 0 ] ); |
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| 344 | Ring_buffer_Initialize( &RX_Buffer[ 1 ] ); |
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| 345 | |
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| 346 | Ring_buffer_Initialize( &TX_Buffer[ 0 ] ); |
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| 347 | Ring_buffer_Initialize( &TX_Buffer[ 1 ] ); |
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| 348 | |
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| 349 | Is_TX_active[ 0 ] = FALSE; |
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| 350 | Is_TX_active[ 1 ] = FALSE; |
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| 351 | |
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| 352 | atexit( console_exit ); |
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| 353 | |
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| 354 | set_vector( console_isr_a, CONSOLE_UART_A_TRAP, 1 ); |
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| 355 | #ifdef RDB_BREAK_IN |
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| 356 | if (trap_table[0x150/4] == 0x91d02000) |
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| 357 | #endif |
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| 358 | set_vector( console_isr_b, CONSOLE_UART_B_TRAP, 1 ); |
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| 359 | } |
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| 360 | |
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| 361 | /* |
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| 362 | * console_inbyte_interrupts |
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| 363 | * |
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| 364 | * This routine reads a character from the UART. |
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| 365 | * |
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| 366 | * Input parameters: NONE |
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| 367 | * |
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| 368 | * Output parameters: NONE |
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| 369 | * |
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| 370 | * Return values: |
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| 371 | * character read from UART |
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| 372 | */ |
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| 373 | |
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| 374 | char console_inbyte_interrupts( int port ) |
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| 375 | { |
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| 376 | char ch; |
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| 377 | |
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| 378 | while ( Ring_buffer_Is_empty( &RX_Buffer[ port ] ) ); |
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| 379 | |
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| 380 | Ring_buffer_Remove_character( &RX_Buffer[ port ], ch ); |
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| 381 | return ch; |
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| 382 | } |
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| 383 | |
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| 384 | /* |
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| 385 | * console_outbyte_interrupts |
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| 386 | * |
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| 387 | * This routine transmits a character out. |
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| 388 | * |
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| 389 | * Input parameters: |
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| 390 | * port - port to transmit character to |
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| 391 | * ch - character to be transmitted |
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| 392 | * |
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| 393 | * Output parameters: NONE |
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| 394 | * |
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| 395 | * Return values: NONE |
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| 396 | */ |
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| 397 | |
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| 398 | void console_outbyte_interrupts( |
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| 399 | int port, |
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| 400 | char ch |
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| 401 | ) |
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| 402 | { |
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| 403 | /* |
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| 404 | * If this is the first character then we need to prime the pump |
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| 405 | */ |
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| 406 | |
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| 407 | if ( Is_TX_active[ port ] == FALSE ) { |
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| 408 | Is_TX_active[ port ] = TRUE; |
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| 409 | console_outbyte_polled( port, ch ); |
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| 410 | return; |
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| 411 | } |
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| 412 | |
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| 413 | while ( Ring_buffer_Is_full( &TX_Buffer[ port ] ) ); |
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| 414 | |
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| 415 | Ring_buffer_Add_character( &TX_Buffer[ port ], ch ); |
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| 416 | } |
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| 417 | |
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| 418 | #endif /* CONSOLE_USE_INTERRUPTS */ |
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| 419 | |
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| 420 | /* |
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| 421 | * DEBUG_puts |
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| 422 | * |
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| 423 | * This should be safe in the event of an error. It attempts to insure |
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| 424 | * that no TX empty interrupts occur while it is doing polled IO. Then |
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| 425 | * it restores the state of that external interrupt. |
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| 426 | * |
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| 427 | * Input parameters: |
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| 428 | * string - pointer to debug output string |
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| 429 | * |
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| 430 | * Output parameters: NONE |
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| 431 | * |
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| 432 | * Return values: NONE |
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| 433 | */ |
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| 434 | |
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| 435 | void DEBUG_puts( |
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| 436 | char *string |
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| 437 | ) |
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| 438 | { |
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| 439 | char *s; |
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| 440 | unsigned32 old_level; |
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| 441 | |
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| 442 | ERC32_Disable_interrupt( ERC32_INTERRUPT_UART_A_RX_TX, old_level ); |
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| 443 | for ( s = string ; *s ; s++ ) |
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| 444 | console_outbyte_polled( 0, *s ); |
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| 445 | |
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| 446 | console_outbyte_polled( 0, '\r' ); |
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| 447 | console_outbyte_polled( 0, '\n' ); |
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| 448 | ERC32_Restore_interrupt( ERC32_INTERRUPT_UART_A_RX_TX, old_level ); |
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| 449 | } |
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| 450 | |
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| 451 | |
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| 452 | /* |
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| 453 | * console_open |
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| 454 | * |
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| 455 | * This routine is the console device driver open entry point. |
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| 456 | * |
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| 457 | * Input parameters: |
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| 458 | * major - console device major number |
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| 459 | * minor - console device minor number |
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| 460 | * arg - pointer to optional device driver arguments |
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| 461 | * |
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| 462 | * Output parameters: NONE |
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| 463 | * |
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| 464 | * Return values: |
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| 465 | * rtems_device_driver status code |
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| 466 | */ |
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| 467 | |
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| 468 | rtems_device_driver console_open( |
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| 469 | rtems_device_major_number major, |
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| 470 | rtems_device_minor_number minor, |
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| 471 | void * arg |
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| 472 | ) |
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| 473 | { |
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| 474 | return RTEMS_SUCCESSFUL; |
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| 475 | } |
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| 476 | |
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| 477 | /* |
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| 478 | * console_close |
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| 479 | * |
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| 480 | * This routine is the console device driver close entry point. |
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| 481 | * |
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| 482 | * Input parameters: |
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| 483 | * major - console device major number |
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| 484 | * minor - console device minor number |
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| 485 | * arg - pointer to optional device driver arguments |
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| 486 | * |
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| 487 | * Output parameters: NONE |
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| 488 | * |
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| 489 | * Return values: |
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| 490 | * rtems_device_driver status code |
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| 491 | */ |
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| 492 | |
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| 493 | rtems_device_driver console_close( |
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| 494 | rtems_device_major_number major, |
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| 495 | rtems_device_minor_number minor, |
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| 496 | void * arg |
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| 497 | ) |
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| 498 | { |
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| 499 | return RTEMS_SUCCESSFUL; |
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| 500 | } |
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| 501 | |
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| 502 | /* |
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| 503 | * console_read |
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| 504 | * |
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| 505 | * This routine is the console device driver read entry point. |
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| 506 | * |
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| 507 | * Input parameters: |
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| 508 | * major - console device major number |
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| 509 | * minor - console device minor number |
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| 510 | * arg - pointer to optional device driver arguments |
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| 511 | * |
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| 512 | * Output parameters: NONE |
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| 513 | * |
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| 514 | * Return values: |
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| 515 | * rtems_device_driver status code |
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| 516 | * |
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| 517 | * NOTE: Read bytes from the serial port. We only have stdin. |
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| 518 | */ |
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| 519 | |
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| 520 | rtems_device_driver console_read( |
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| 521 | rtems_device_major_number major, |
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| 522 | rtems_device_minor_number minor, |
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| 523 | void * arg |
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| 524 | ) |
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| 525 | { |
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| 526 | rtems_libio_rw_args_t *rw_args; |
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| 527 | char *buffer; |
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| 528 | int maximum; |
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| 529 | int count = 0; |
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| 530 | |
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| 531 | rw_args = (rtems_libio_rw_args_t *) arg; |
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| 532 | |
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| 533 | buffer = rw_args->buffer; |
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| 534 | maximum = rw_args->count; |
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| 535 | |
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| 536 | #ifdef CONSOLE_FAKE_INPUT |
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| 537 | count = 0; |
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| 538 | buffer[ count++ ] = '\n'; |
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| 539 | buffer[ count ] = 0; |
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| 540 | #else |
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| 541 | for (count = 0; count < maximum; count++) { |
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| 542 | buffer[ count ] = INBYTE( minor ); |
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| 543 | if (buffer[ count ] == '\n' || buffer[ count ] == '\r') { |
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| 544 | buffer[ count++ ] = '\n'; |
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| 545 | buffer[ count ] = 0; |
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| 546 | break; |
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| 547 | } |
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| 548 | } |
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| 549 | #endif |
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| 550 | |
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| 551 | rw_args->bytes_moved = count; |
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| 552 | return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED; |
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| 553 | } |
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| 554 | |
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| 555 | /* |
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| 556 | * console_write |
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| 557 | * |
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| 558 | * This routine is the console device driver write entry point. |
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| 559 | * |
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| 560 | * Input parameters: |
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| 561 | * major - console device major number |
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| 562 | * minor - console device minor number |
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| 563 | * arg - pointer to optional device driver arguments |
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| 564 | * |
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| 565 | * Output parameters: NONE |
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| 566 | * |
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| 567 | * Return values: |
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| 568 | * rtems_device_driver status code |
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| 569 | * |
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| 570 | * NOTE: Write bytes to the serial port. Stdout and stderr are the same. |
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| 571 | */ |
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| 572 | |
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| 573 | rtems_device_driver console_write( |
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| 574 | rtems_device_major_number major, |
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| 575 | rtems_device_minor_number minor, |
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| 576 | void * arg |
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| 577 | ) |
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| 578 | { |
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| 579 | int count; |
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| 580 | int maximum; |
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| 581 | rtems_libio_rw_args_t *rw_args; |
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| 582 | char *buffer; |
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| 583 | |
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| 584 | rw_args = (rtems_libio_rw_args_t *) arg; |
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| 585 | |
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| 586 | buffer = rw_args->buffer; |
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| 587 | maximum = rw_args->count; |
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| 588 | |
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| 589 | for (count = 0; count < maximum; count++) { |
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| 590 | OUTBYTE( minor, buffer[ count ] ); |
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| 591 | if ( buffer[ count ] == '\n') { |
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| 592 | OUTBYTE( minor, '\r'); |
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| 593 | } |
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| 594 | } |
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| 595 | |
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| 596 | rw_args->bytes_moved = maximum; |
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| 597 | return RTEMS_SUCCESSFUL; |
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| 598 | } |
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| 599 | |
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| 600 | /* |
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| 601 | * console_control |
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| 602 | * |
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| 603 | * This routine is the console device driver control entry point. |
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| 604 | * |
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| 605 | * Input parameters: |
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| 606 | * major - console device major number |
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| 607 | * minor - console device minor number |
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| 608 | * arg - pointer to optional device driver arguments |
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| 609 | * |
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| 610 | * Output parameters: NONE |
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| 611 | * |
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| 612 | * Return values: |
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| 613 | * rtems_device_driver status code |
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| 614 | */ |
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| 615 | |
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| 616 | rtems_device_driver console_control( |
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| 617 | rtems_device_major_number major, |
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| 618 | rtems_device_minor_number minor, |
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| 619 | void * arg |
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| 620 | ) |
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| 621 | { |
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| 622 | return RTEMS_SUCCESSFUL; |
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| 623 | } |
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| 624 | |
---|