[7150f00f] | 1 | /*-------------------------------------------------------------------------+ |
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| 2 | | console.c v1.1 - PC386 BSP - 1997/08/07 |
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| 3 | +--------------------------------------------------------------------------+ |
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| 4 | | This file contains the PC386 console I/O package. |
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| 5 | +--------------------------------------------------------------------------+ |
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| 6 | | (C) Copyright 1997 - |
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| 7 | | - NavIST Group - Real-Time Distributed Systems and Industrial Automation |
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| 8 | | |
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| 9 | | http://pandora.ist.utl.pt |
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| 10 | | |
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| 11 | | Instituto Superior Tecnico * Lisboa * PORTUGAL |
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| 12 | +--------------------------------------------------------------------------+ |
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| 13 | | Disclaimer: |
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| 14 | | |
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| 15 | | This file is provided "AS IS" without warranty of any kind, either |
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| 16 | | expressed or implied. |
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| 17 | +--------------------------------------------------------------------------+ |
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| 18 | | This code is based on: |
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| 19 | | console.c,v 1.4 1995/12/19 20:07:23 joel Exp - go32 BSP |
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| 20 | | With the following copyright notice: |
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| 21 | | ************************************************************************** |
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[60b791ad] | 22 | | * COPYRIGHT (c) 1989-1998. |
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[6f9c75c3] | 23 | | * On-Line Applications Research Corporation (OAR). |
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| 24 | | * Copyright assigned to U.S. Government, 1994. |
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| 25 | | * |
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| 26 | | * The license and distribution terms for this file may be |
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| 27 | | * found in found in the file LICENSE in this distribution or at |
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| 28 | | * http://www.OARcorp.com/rtems/license.html. |
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[7150f00f] | 29 | | ************************************************************************** |
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[6f9c75c3] | 30 | | |
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| 31 | | $Id$ |
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[7150f00f] | 32 | +--------------------------------------------------------------------------*/ |
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| 33 | |
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[dbfa3148] | 34 | #include <stdio.h> |
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[7150f00f] | 35 | #include <stdlib.h> |
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[5d18fb0] | 36 | #include <assert.h> |
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[7150f00f] | 37 | |
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| 38 | #include <bsp.h> |
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| 39 | #include <irq.h> |
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| 40 | #include <rtems/libio.h> |
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[5d18fb0] | 41 | #include <termios.h> |
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| 42 | #include <pc386uart.h> |
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| 43 | |
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| 44 | int PC386ConsolePort = PC386_CONSOLE_PORT_CONSOLE; |
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| 45 | |
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| 46 | static int conSetAttr(int minor, const struct termios *); |
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[7150f00f] | 47 | |
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| 48 | /*-------------------------------------------------------------------------+ |
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| 49 | | External Prototypes |
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| 50 | +--------------------------------------------------------------------------*/ |
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[67a2288] | 51 | extern void _IBMPC_keyboard_isr(void); |
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| 52 | extern void _IBMPC_keyboard_isr_on(const rtems_irq_connect_data*); |
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| 53 | extern void _IBMPC_keyboard_isr_off(const rtems_irq_connect_data*); |
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| 54 | extern int _IBMPC_keyboard_isr_is_on(const rtems_irq_connect_data*); |
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| 55 | |
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| 56 | static rtems_irq_connect_data console_isr_data = {PC_386_KEYBOARD, |
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| 57 | _IBMPC_keyboard_isr, |
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| 58 | _IBMPC_keyboard_isr_on, |
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| 59 | _IBMPC_keyboard_isr_off, |
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| 60 | _IBMPC_keyboard_isr_is_on}; |
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| 61 | |
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[7150f00f] | 62 | |
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[dbfa3148] | 63 | extern rtems_boolean _IBMPC_scankey(char *); /* defined in 'inch.c' */ |
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[bd8c8b2a] | 64 | extern BSP_polling_getchar_function_type BSP_wait_polled_input(); |
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| 65 | extern void _IBMPC_initVideo(); |
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[7150f00f] | 66 | |
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[5d18fb0] | 67 | void console_reserve_resources(rtems_configuration_table *conf) |
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[7150f00f] | 68 | { |
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[5d18fb0] | 69 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 70 | { |
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| 71 | rtems_termios_reserve_resources(conf, 1); |
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| 72 | } |
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| 73 | return; |
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| 74 | } |
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[7150f00f] | 75 | |
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[5d18fb0] | 76 | void __assert(const char *file, int line, const char *msg) |
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[7150f00f] | 77 | { |
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[dbfa3148] | 78 | static char buf[20]; |
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| 79 | static char exit_msg[] = "EXECUTIVE SHUTDOWN! Any key to reboot..."; |
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| 80 | static char assert_msg[] = "assert failed: "; |
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| 81 | unsigned char ch; |
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| 82 | const unsigned char *cp; |
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| 83 | |
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| 84 | |
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| 85 | /* |
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| 86 | * Note we cannot call exit or printf from here, |
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| 87 | * assert can fail inside ISR too |
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| 88 | */ |
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| 89 | if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) |
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| 90 | { |
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| 91 | printk("\nassert failed: %s: ", file); |
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| 92 | printk("%d: ", line); |
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| 93 | printk("%s\n\n", msg); |
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| 94 | printk(exit_msg); |
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| 95 | while(!_IBMPC_scankey(&ch)); |
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| 96 | printk("\n\n"); |
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| 97 | } |
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| 98 | else |
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| 99 | { |
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| 100 | PC386_uart_intr_ctrl(PC386ConsolePort, PC386_UART_INTR_CTRL_DISABLE); |
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| 101 | |
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| 102 | PC386_uart_polled_write(PC386ConsolePort, '\r'); |
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| 103 | PC386_uart_polled_write(PC386ConsolePort, '\n'); |
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| 104 | |
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| 105 | for(cp=assert_msg; *cp!=0; cp++) |
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| 106 | { |
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| 107 | PC386_uart_polled_write(PC386ConsolePort, *cp); |
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| 108 | } |
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[7150f00f] | 109 | |
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[dbfa3148] | 110 | for(cp=file; *cp!=0; cp++) |
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| 111 | { |
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| 112 | PC386_uart_polled_write(PC386ConsolePort, *cp); |
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| 113 | } |
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| 114 | |
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| 115 | PC386_uart_polled_write(PC386ConsolePort, ':'); |
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| 116 | PC386_uart_polled_write(PC386ConsolePort, ' '); |
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[7150f00f] | 117 | |
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[dbfa3148] | 118 | sprintf(buf, "%d: ", line); |
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| 119 | |
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| 120 | for(cp=buf; *cp!=0; cp++) |
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| 121 | { |
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| 122 | PC386_uart_polled_write(PC386ConsolePort, *cp); |
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| 123 | } |
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| 124 | |
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| 125 | for(cp=msg; *cp!=0; cp++) |
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| 126 | { |
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| 127 | PC386_uart_polled_write(PC386ConsolePort, *cp); |
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| 128 | } |
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| 129 | |
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| 130 | PC386_uart_polled_write(PC386ConsolePort, '\r'); |
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| 131 | PC386_uart_polled_write(PC386ConsolePort, '\n'); |
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| 132 | PC386_uart_polled_write(PC386ConsolePort, '\r'); |
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| 133 | PC386_uart_polled_write(PC386ConsolePort, '\n'); |
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| 134 | |
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| 135 | for(cp=exit_msg; *cp != 0; cp++) |
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| 136 | { |
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| 137 | PC386_uart_polled_write(PC386ConsolePort, *cp); |
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| 138 | } |
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| 139 | |
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| 140 | PC386_uart_polled_read(PC386ConsolePort); |
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| 141 | |
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| 142 | PC386_uart_polled_write(PC386ConsolePort, '\r'); |
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| 143 | PC386_uart_polled_write(PC386ConsolePort, '\n'); |
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| 144 | PC386_uart_polled_write(PC386ConsolePort, '\r'); |
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| 145 | PC386_uart_polled_write(PC386ConsolePort, '\n'); |
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| 146 | |
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| 147 | } |
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| 148 | |
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| 149 | rtemsReboot(); |
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[5d18fb0] | 150 | } |
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[7150f00f] | 151 | |
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[dbfa3148] | 152 | |
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[7150f00f] | 153 | /*-------------------------------------------------------------------------+ |
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| 154 | | Console device driver INITIALIZE entry point. |
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| 155 | +--------------------------------------------------------------------------+ |
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| 156 | | Initilizes the I/O console (keyboard + VGA display) driver. |
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| 157 | +--------------------------------------------------------------------------*/ |
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| 158 | rtems_device_driver |
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| 159 | console_initialize(rtems_device_major_number major, |
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| 160 | rtems_device_minor_number minor, |
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| 161 | void *arg) |
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| 162 | { |
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| 163 | rtems_status_code status; |
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| 164 | |
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| 165 | /* Initialize video */ |
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| 166 | _IBMPC_initVideo(); |
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| 167 | |
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[5d18fb0] | 168 | if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) |
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| 169 | { |
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[7150f00f] | 170 | |
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[5d18fb0] | 171 | /* Install keyboard interrupt handler */ |
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[67a2288] | 172 | status = pc386_install_rtems_irq_handler(&console_isr_data); |
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| 173 | |
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| 174 | if (!status) |
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[5d18fb0] | 175 | { |
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| 176 | printk("Error installing keyboard interrupt handler!\n"); |
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| 177 | rtems_fatal_error_occurred(status); |
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| 178 | } |
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| 179 | |
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| 180 | status = rtems_io_register_name("/dev/console", major, 0); |
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| 181 | if (status != RTEMS_SUCCESSFUL) |
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| 182 | { |
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| 183 | printk("Error registering console device!\n"); |
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| 184 | rtems_fatal_error_occurred(status); |
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| 185 | } |
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| 186 | printk("Initialized console on port CONSOLE\n\n"); |
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| 187 | } |
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| 188 | else |
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| 189 | { |
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| 190 | /* |
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| 191 | * Set up TERMIOS |
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| 192 | */ |
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| 193 | rtems_termios_initialize (); |
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| 194 | |
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| 195 | /* |
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| 196 | * Do device-specific initialization |
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| 197 | */ |
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| 198 | |
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| 199 | /* 9600-8-N-1 */ |
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| 200 | PC386_uart_init(PC386ConsolePort, 9600, 0); |
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| 201 | |
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| 202 | |
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| 203 | /* Set interrupt handler */ |
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| 204 | if(PC386ConsolePort == PC386_UART_COM1) |
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| 205 | { |
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[67a2288] | 206 | console_isr_data.name = PC386_UART_COM1_IRQ; |
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| 207 | console_isr_data.hdl = PC386_uart_termios_isr_com1; |
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| 208 | |
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[5d18fb0] | 209 | } |
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| 210 | else |
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| 211 | { |
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| 212 | assert(PC386ConsolePort == PC386_UART_COM2); |
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[67a2288] | 213 | console_isr_data.name = PC386_UART_COM2_IRQ; |
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| 214 | console_isr_data.hdl = PC386_uart_termios_isr_com2; |
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[5d18fb0] | 215 | } |
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[67a2288] | 216 | |
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| 217 | status =pc386_install_rtems_irq_handler(&console_isr_data); |
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[5d18fb0] | 218 | /* |
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| 219 | * Register the device |
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| 220 | */ |
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| 221 | status = rtems_io_register_name ("/dev/console", major, 0); |
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| 222 | if (status != RTEMS_SUCCESSFUL) |
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| 223 | { |
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| 224 | printk("Error registering console device!\n"); |
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| 225 | rtems_fatal_error_occurred (status); |
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| 226 | } |
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| 227 | |
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| 228 | if(PC386ConsolePort == PC386_UART_COM1) |
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| 229 | { |
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| 230 | printk("Initialized console on port COM1 9600-8-N-1\n\n"); |
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| 231 | } |
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| 232 | else |
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| 233 | { |
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| 234 | printk("Initialized console on port COM2 9600-8-N-1\n\n"); |
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| 235 | } |
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| 236 | } |
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[ab0df696] | 237 | #define DISPLAY_CPU_INFO |
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| 238 | #ifdef DISPLAY_CPU_INFO |
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| 239 | printCpuInfo(); |
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| 240 | #endif |
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| 241 | |
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[7150f00f] | 242 | return RTEMS_SUCCESSFUL; |
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| 243 | } /* console_initialize */ |
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| 244 | |
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| 245 | |
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| 246 | /*-------------------------------------------------------------------------+ |
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| 247 | | Console device driver OPEN entry point |
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| 248 | +--------------------------------------------------------------------------*/ |
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| 249 | rtems_device_driver |
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| 250 | console_open(rtems_device_major_number major, |
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[5d18fb0] | 251 | rtems_device_minor_number minor, |
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| 252 | void *arg) |
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[7150f00f] | 253 | { |
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[5d18fb0] | 254 | rtems_status_code status; |
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| 255 | static rtems_termios_callbacks cb = |
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| 256 | { |
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| 257 | NULL, /* firstOpen */ |
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| 258 | NULL, /* lastClose */ |
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| 259 | NULL, /* pollRead */ |
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| 260 | PC386_uart_termios_write_com1, /* write */ |
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| 261 | conSetAttr, /* setAttributes */ |
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| 262 | NULL, /* stopRemoteTx */ |
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| 263 | NULL, /* startRemoteTx */ |
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| 264 | 1 /* outputUsesInterrupts */ |
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| 265 | }; |
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| 266 | |
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| 267 | if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) |
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| 268 | { |
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| 269 | return RTEMS_SUCCESSFUL; |
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| 270 | } |
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[7150f00f] | 271 | |
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[5d18fb0] | 272 | if(PC386ConsolePort == PC386_UART_COM2) |
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| 273 | { |
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| 274 | cb.write = PC386_uart_termios_write_com2; |
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| 275 | } |
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| 276 | |
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| 277 | status = rtems_termios_open (major, minor, arg, &cb); |
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| 278 | |
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| 279 | if(status != RTEMS_SUCCESSFUL) |
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| 280 | { |
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| 281 | printk("Error openning console device\n"); |
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| 282 | return status; |
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| 283 | } |
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| 284 | |
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| 285 | /* |
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| 286 | * Pass data area info down to driver |
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| 287 | */ |
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| 288 | PC386_uart_termios_set(PC386ConsolePort, |
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| 289 | ((rtems_libio_open_close_args_t *)arg)->iop->data1); |
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| 290 | |
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| 291 | /* Enable interrupts on channel */ |
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| 292 | PC386_uart_intr_ctrl(PC386ConsolePort, PC386_UART_INTR_CTRL_TERMIOS); |
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| 293 | |
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| 294 | return RTEMS_SUCCESSFUL; |
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| 295 | } |
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[7150f00f] | 296 | |
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| 297 | /*-------------------------------------------------------------------------+ |
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| 298 | | Console device driver CLOSE entry point |
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| 299 | +--------------------------------------------------------------------------*/ |
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| 300 | rtems_device_driver |
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| 301 | console_close(rtems_device_major_number major, |
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| 302 | rtems_device_minor_number minor, |
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| 303 | void *arg) |
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| 304 | { |
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[67a2288] | 305 | rtems_device_driver res = RTEMS_SUCCESSFUL; |
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| 306 | |
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[5d18fb0] | 307 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 308 | { |
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[67a2288] | 309 | res = rtems_termios_close (arg); |
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[5d18fb0] | 310 | } |
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[67a2288] | 311 | pc386_remove_rtems_irq_handler (&console_isr_data); |
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| 312 | |
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| 313 | return res; |
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[7150f00f] | 314 | } /* console_close */ |
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| 315 | |
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| 316 | |
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| 317 | /*-------------------------------------------------------------------------+ |
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| 318 | | Console device driver READ entry point. |
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| 319 | +--------------------------------------------------------------------------+ |
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| 320 | | Read characters from the I/O console. We only have stdin. |
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| 321 | +--------------------------------------------------------------------------*/ |
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| 322 | rtems_device_driver |
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| 323 | console_read(rtems_device_major_number major, |
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| 324 | rtems_device_minor_number minor, |
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| 325 | void *arg) |
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| 326 | { |
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| 327 | rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg; |
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| 328 | char *buffer = rw_args->buffer; |
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| 329 | int count, maximum = rw_args->count; |
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[5d18fb0] | 330 | |
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| 331 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 332 | { |
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| 333 | return rtems_termios_read (arg); |
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| 334 | } |
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[7150f00f] | 335 | |
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| 336 | for (count = 0; count < maximum; count++) |
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| 337 | { |
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[5d18fb0] | 338 | /* Get character */ |
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| 339 | buffer[count] = _IBMPC_inch_sleep(); |
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| 340 | |
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| 341 | /* Echo character to screen */ |
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| 342 | _IBMPC_outch(buffer[count]); |
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| 343 | if (buffer[count] == '\r') |
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| 344 | { |
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| 345 | _IBMPC_outch('\n'); /* CR = CR + LF */ |
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| 346 | } |
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| 347 | |
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[7150f00f] | 348 | if (buffer[count] == '\n' || buffer[count] == '\r') |
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| 349 | { |
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| 350 | /* What if this goes past the end of the buffer? We're hosed. [bhc] */ |
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| 351 | buffer[count++] = '\n'; |
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| 352 | buffer[count] = '\0'; |
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| 353 | break; |
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| 354 | } |
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| 355 | } |
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| 356 | |
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| 357 | rw_args->bytes_moved = count; |
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| 358 | return ((count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED); |
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| 359 | } /* console_read */ |
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| 360 | |
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| 361 | |
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| 362 | /*-------------------------------------------------------------------------+ |
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| 363 | | Console device driver WRITE entry point. |
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| 364 | +--------------------------------------------------------------------------+ |
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| 365 | | Write characters to the I/O console. Stderr and stdout are the same. |
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| 366 | +--------------------------------------------------------------------------*/ |
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| 367 | rtems_device_driver |
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| 368 | console_write(rtems_device_major_number major, |
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| 369 | rtems_device_minor_number minor, |
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| 370 | void * arg) |
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| 371 | { |
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| 372 | rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg; |
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| 373 | char *buffer = rw_args->buffer; |
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| 374 | int count, maximum = rw_args->count; |
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[5d18fb0] | 375 | |
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| 376 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 377 | { |
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| 378 | return rtems_termios_write (arg); |
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| 379 | } |
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[7150f00f] | 380 | |
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| 381 | for (count = 0; count < maximum; count++) |
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| 382 | { |
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[5d18fb0] | 383 | _IBMPC_outch(buffer[count]); |
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[7150f00f] | 384 | if (buffer[count] == '\n') |
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[5d18fb0] | 385 | _IBMPC_outch('\r'); /* LF = LF + CR */ |
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[7150f00f] | 386 | } |
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| 387 | |
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| 388 | rw_args->bytes_moved = maximum; |
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| 389 | return RTEMS_SUCCESSFUL; |
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| 390 | } /* console_write */ |
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| 391 | |
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| 392 | |
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[5d18fb0] | 393 | |
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| 394 | /* |
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| 395 | * Handle ioctl request. |
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| 396 | */ |
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| 397 | rtems_device_driver |
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[7150f00f] | 398 | console_control(rtems_device_major_number major, |
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[5d18fb0] | 399 | rtems_device_minor_number minor, |
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| 400 | void * arg |
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| 401 | ) |
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| 402 | { |
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| 403 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 404 | { |
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| 405 | return rtems_termios_ioctl (arg); |
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| 406 | } |
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| 407 | |
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[7150f00f] | 408 | return RTEMS_SUCCESSFUL; |
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[5d18fb0] | 409 | } |
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| 410 | |
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| 411 | static int |
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| 412 | conSetAttr(int minor, const struct termios *t) |
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| 413 | { |
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| 414 | int baud; |
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| 415 | |
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| 416 | switch (t->c_cflag & CBAUD) |
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| 417 | { |
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| 418 | case B50: |
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| 419 | baud = 50; |
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| 420 | break; |
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| 421 | case B75: |
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| 422 | baud = 75; |
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| 423 | break; |
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| 424 | case B110: |
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| 425 | baud = 110; |
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| 426 | break; |
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| 427 | case B134: |
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| 428 | baud = 134; |
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| 429 | break; |
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| 430 | case B150: |
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| 431 | baud = 150; |
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| 432 | break; |
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| 433 | case B200: |
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| 434 | baud = 200; |
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| 435 | break; |
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| 436 | case B300: |
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| 437 | baud = 300; |
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| 438 | break; |
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| 439 | case B600: |
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| 440 | baud = 600; |
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| 441 | break; |
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| 442 | case B1200: |
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| 443 | baud = 1200; |
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| 444 | break; |
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| 445 | case B1800: |
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| 446 | baud = 1800; |
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| 447 | break; |
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| 448 | case B2400: |
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| 449 | baud = 2400; |
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| 450 | break; |
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| 451 | case B4800: |
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| 452 | baud = 4800; |
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| 453 | break; |
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| 454 | case B9600: |
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| 455 | baud = 9600; |
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| 456 | break; |
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| 457 | case B19200: |
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| 458 | baud = 19200; |
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| 459 | break; |
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| 460 | case B38400: |
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| 461 | baud = 38400; |
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| 462 | break; |
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| 463 | case B57600: |
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| 464 | baud = 57600; |
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| 465 | break; |
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| 466 | case B115200: |
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| 467 | baud = 115200; |
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| 468 | break; |
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| 469 | default: |
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| 470 | baud = 0; |
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| 471 | rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); |
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| 472 | return 0; |
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| 473 | } |
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| 474 | |
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| 475 | PC386_uart_set_baud(PC386ConsolePort, baud); |
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| 476 | |
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| 477 | return 0; |
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| 478 | } |
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| 479 | |
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[bd8c8b2a] | 480 | /* |
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| 481 | * BSP initialization |
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| 482 | */ |
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| 483 | |
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| 484 | BSP_output_char_function_type BSP_output_char = (BSP_output_char_function_type) _IBMPC_outch; |
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| 485 | BSP_polling_getchar_function_type BSP_poll_char = BSP_wait_polled_input; |
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| 486 | void BSP_emergency_output_init() |
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| 487 | { |
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| 488 | _IBMPC_initVideo(); |
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| 489 | } |
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[5d18fb0] | 490 | |
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