[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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[2d7d605] | 43 | #include <libcpu/cpuModel.h> |
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[5d18fb0] | 44 | |
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[de9edc4] | 45 | /* |
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| 46 | * Possible value for console input/output : |
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| 47 | * PC386_CONSOLE_PORT_CONSOLE |
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| 48 | * PC386_UART_COM1 |
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| 49 | * PC386_UART_COM2 |
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| 50 | */ |
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| 51 | |
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| 52 | int PC386ConsolePort = PC386_UART_COM2; |
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[5d18fb0] | 53 | |
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| 54 | static int conSetAttr(int minor, const struct termios *); |
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[69036586] | 55 | extern BSP_polling_getchar_function_type BSP_poll_char; |
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[7150f00f] | 56 | |
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| 57 | /*-------------------------------------------------------------------------+ |
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| 58 | | External Prototypes |
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| 59 | +--------------------------------------------------------------------------*/ |
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[67a2288] | 60 | extern void _IBMPC_keyboard_isr(void); |
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| 61 | extern void _IBMPC_keyboard_isr_on(const rtems_irq_connect_data*); |
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| 62 | extern void _IBMPC_keyboard_isr_off(const rtems_irq_connect_data*); |
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| 63 | extern int _IBMPC_keyboard_isr_is_on(const rtems_irq_connect_data*); |
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| 64 | |
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| 65 | static rtems_irq_connect_data console_isr_data = {PC_386_KEYBOARD, |
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| 66 | _IBMPC_keyboard_isr, |
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| 67 | _IBMPC_keyboard_isr_on, |
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| 68 | _IBMPC_keyboard_isr_off, |
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| 69 | _IBMPC_keyboard_isr_is_on}; |
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| 70 | |
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[7150f00f] | 71 | |
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[dbfa3148] | 72 | extern rtems_boolean _IBMPC_scankey(char *); /* defined in 'inch.c' */ |
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[2d7d605] | 73 | extern char BSP_wait_polled_input(void); |
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| 74 | extern void _IBMPC_initVideo(void); |
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[7150f00f] | 75 | |
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[5d18fb0] | 76 | void console_reserve_resources(rtems_configuration_table *conf) |
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[7150f00f] | 77 | { |
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[5d18fb0] | 78 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 79 | { |
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| 80 | rtems_termios_reserve_resources(conf, 1); |
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| 81 | } |
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| 82 | return; |
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| 83 | } |
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[7150f00f] | 84 | |
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[5d18fb0] | 85 | void __assert(const char *file, int line, const char *msg) |
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[7150f00f] | 86 | { |
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[dbfa3148] | 87 | static char exit_msg[] = "EXECUTIVE SHUTDOWN! Any key to reboot..."; |
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| 88 | unsigned char ch; |
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| 89 | |
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| 90 | /* |
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| 91 | * Note we cannot call exit or printf from here, |
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| 92 | * assert can fail inside ISR too |
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| 93 | */ |
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[69036586] | 94 | printk("\nassert failed: %s: ", file); |
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| 95 | printk("%d: ", line); |
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| 96 | printk("%s\n\n", msg); |
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| 97 | printk(exit_msg); |
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| 98 | ch = BSP_poll_char(); |
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| 99 | printk("\n\n"); |
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[dbfa3148] | 100 | rtemsReboot(); |
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[5d18fb0] | 101 | } |
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[7150f00f] | 102 | |
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[dbfa3148] | 103 | |
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[7150f00f] | 104 | /*-------------------------------------------------------------------------+ |
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| 105 | | Console device driver INITIALIZE entry point. |
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| 106 | +--------------------------------------------------------------------------+ |
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| 107 | | Initilizes the I/O console (keyboard + VGA display) driver. |
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| 108 | +--------------------------------------------------------------------------*/ |
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| 109 | rtems_device_driver |
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| 110 | console_initialize(rtems_device_major_number major, |
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| 111 | rtems_device_minor_number minor, |
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| 112 | void *arg) |
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| 113 | { |
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| 114 | rtems_status_code status; |
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| 115 | |
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| 116 | /* Initialize video */ |
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| 117 | _IBMPC_initVideo(); |
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| 118 | |
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[5d18fb0] | 119 | if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) |
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| 120 | { |
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[7150f00f] | 121 | |
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[5d18fb0] | 122 | /* Install keyboard interrupt handler */ |
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[2d7d605] | 123 | status = pc386_install_rtems_irq_handler(&console_isr_data); |
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[67a2288] | 124 | |
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[2d7d605] | 125 | if (!status) |
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[5d18fb0] | 126 | { |
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| 127 | printk("Error installing keyboard interrupt handler!\n"); |
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| 128 | rtems_fatal_error_occurred(status); |
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| 129 | } |
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| 130 | |
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| 131 | status = rtems_io_register_name("/dev/console", major, 0); |
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| 132 | if (status != RTEMS_SUCCESSFUL) |
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| 133 | { |
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| 134 | printk("Error registering console device!\n"); |
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| 135 | rtems_fatal_error_occurred(status); |
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| 136 | } |
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| 137 | printk("Initialized console on port CONSOLE\n\n"); |
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| 138 | } |
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| 139 | else |
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| 140 | { |
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| 141 | /* |
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| 142 | * Set up TERMIOS |
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| 143 | */ |
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| 144 | rtems_termios_initialize (); |
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| 145 | |
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| 146 | /* |
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| 147 | * Do device-specific initialization |
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| 148 | */ |
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| 149 | |
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| 150 | /* 9600-8-N-1 */ |
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| 151 | PC386_uart_init(PC386ConsolePort, 9600, 0); |
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| 152 | |
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| 153 | |
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| 154 | /* Set interrupt handler */ |
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| 155 | if(PC386ConsolePort == PC386_UART_COM1) |
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| 156 | { |
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[67a2288] | 157 | console_isr_data.name = PC386_UART_COM1_IRQ; |
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| 158 | console_isr_data.hdl = PC386_uart_termios_isr_com1; |
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| 159 | |
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[5d18fb0] | 160 | } |
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| 161 | else |
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| 162 | { |
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| 163 | assert(PC386ConsolePort == PC386_UART_COM2); |
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[67a2288] | 164 | console_isr_data.name = PC386_UART_COM2_IRQ; |
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| 165 | console_isr_data.hdl = PC386_uart_termios_isr_com2; |
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[5d18fb0] | 166 | } |
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[67a2288] | 167 | |
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[69036586] | 168 | status = pc386_install_rtems_irq_handler(&console_isr_data); |
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| 169 | |
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| 170 | if (!status){ |
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| 171 | printk("Error installing serial console interrupt handler!\n"); |
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| 172 | rtems_fatal_error_occurred(status); |
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| 173 | } |
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[5d18fb0] | 174 | /* |
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| 175 | * Register the device |
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| 176 | */ |
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| 177 | status = rtems_io_register_name ("/dev/console", major, 0); |
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| 178 | if (status != RTEMS_SUCCESSFUL) |
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| 179 | { |
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| 180 | printk("Error registering console device!\n"); |
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| 181 | rtems_fatal_error_occurred (status); |
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| 182 | } |
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| 183 | |
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| 184 | if(PC386ConsolePort == PC386_UART_COM1) |
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| 185 | { |
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| 186 | printk("Initialized console on port COM1 9600-8-N-1\n\n"); |
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| 187 | } |
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| 188 | else |
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| 189 | { |
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| 190 | printk("Initialized console on port COM2 9600-8-N-1\n\n"); |
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| 191 | } |
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[de9edc4] | 192 | #define PRINTK_ON_SERIAL |
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| 193 | #ifdef PRINTK_ON_SERIAL |
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| 194 | /* |
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| 195 | * You can remove the follwoing tree lines if you want to have printk |
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| 196 | * using the video console for output while printf use serial line. |
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| 197 | * This may be convenient to debug the serial line driver itself... |
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| 198 | */ |
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[69036586] | 199 | printk("Warning : This will be the last message displayed on console\n"); |
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| 200 | BSP_output_char = (BSP_output_char_function_type) BSP_output_char_via_serial; |
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| 201 | BSP_poll_char = (BSP_polling_getchar_function_type) BSP_poll_char_via_serial; |
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[de9edc4] | 202 | #endif |
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[5d18fb0] | 203 | } |
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[7150f00f] | 204 | return RTEMS_SUCCESSFUL; |
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| 205 | } /* console_initialize */ |
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| 206 | |
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| 207 | |
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| 208 | /*-------------------------------------------------------------------------+ |
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| 209 | | Console device driver OPEN entry point |
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| 210 | +--------------------------------------------------------------------------*/ |
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| 211 | rtems_device_driver |
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| 212 | console_open(rtems_device_major_number major, |
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[5d18fb0] | 213 | rtems_device_minor_number minor, |
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| 214 | void *arg) |
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[7150f00f] | 215 | { |
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[5d18fb0] | 216 | rtems_status_code status; |
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| 217 | static rtems_termios_callbacks cb = |
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| 218 | { |
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| 219 | NULL, /* firstOpen */ |
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| 220 | NULL, /* lastClose */ |
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| 221 | NULL, /* pollRead */ |
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| 222 | PC386_uart_termios_write_com1, /* write */ |
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| 223 | conSetAttr, /* setAttributes */ |
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| 224 | NULL, /* stopRemoteTx */ |
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| 225 | NULL, /* startRemoteTx */ |
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| 226 | 1 /* outputUsesInterrupts */ |
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| 227 | }; |
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| 228 | |
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| 229 | if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) |
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| 230 | { |
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| 231 | return RTEMS_SUCCESSFUL; |
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| 232 | } |
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[7150f00f] | 233 | |
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[5d18fb0] | 234 | if(PC386ConsolePort == PC386_UART_COM2) |
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| 235 | { |
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| 236 | cb.write = PC386_uart_termios_write_com2; |
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| 237 | } |
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| 238 | |
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| 239 | status = rtems_termios_open (major, minor, arg, &cb); |
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| 240 | |
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| 241 | if(status != RTEMS_SUCCESSFUL) |
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| 242 | { |
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| 243 | printk("Error openning console device\n"); |
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| 244 | return status; |
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| 245 | } |
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| 246 | |
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| 247 | /* |
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| 248 | * Pass data area info down to driver |
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| 249 | */ |
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| 250 | PC386_uart_termios_set(PC386ConsolePort, |
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| 251 | ((rtems_libio_open_close_args_t *)arg)->iop->data1); |
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| 252 | |
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| 253 | /* Enable interrupts on channel */ |
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| 254 | PC386_uart_intr_ctrl(PC386ConsolePort, PC386_UART_INTR_CTRL_TERMIOS); |
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| 255 | |
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| 256 | return RTEMS_SUCCESSFUL; |
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| 257 | } |
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[7150f00f] | 258 | |
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| 259 | /*-------------------------------------------------------------------------+ |
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| 260 | | Console device driver CLOSE entry point |
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| 261 | +--------------------------------------------------------------------------*/ |
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| 262 | rtems_device_driver |
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| 263 | console_close(rtems_device_major_number major, |
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| 264 | rtems_device_minor_number minor, |
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| 265 | void *arg) |
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| 266 | { |
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[67a2288] | 267 | rtems_device_driver res = RTEMS_SUCCESSFUL; |
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| 268 | |
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[5d18fb0] | 269 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 270 | { |
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[67a2288] | 271 | res = rtems_termios_close (arg); |
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[5d18fb0] | 272 | } |
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[67a2288] | 273 | pc386_remove_rtems_irq_handler (&console_isr_data); |
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| 274 | |
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| 275 | return res; |
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[7150f00f] | 276 | } /* console_close */ |
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| 277 | |
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| 278 | |
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| 279 | /*-------------------------------------------------------------------------+ |
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| 280 | | Console device driver READ entry point. |
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| 281 | +--------------------------------------------------------------------------+ |
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| 282 | | Read characters from the I/O console. We only have stdin. |
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| 283 | +--------------------------------------------------------------------------*/ |
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| 284 | rtems_device_driver |
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| 285 | console_read(rtems_device_major_number major, |
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| 286 | rtems_device_minor_number minor, |
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| 287 | void *arg) |
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| 288 | { |
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| 289 | rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg; |
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| 290 | char *buffer = rw_args->buffer; |
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| 291 | int count, maximum = rw_args->count; |
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[5d18fb0] | 292 | |
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| 293 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 294 | { |
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| 295 | return rtems_termios_read (arg); |
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| 296 | } |
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[7150f00f] | 297 | |
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| 298 | for (count = 0; count < maximum; count++) |
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| 299 | { |
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[5d18fb0] | 300 | /* Get character */ |
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| 301 | buffer[count] = _IBMPC_inch_sleep(); |
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| 302 | |
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| 303 | /* Echo character to screen */ |
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| 304 | _IBMPC_outch(buffer[count]); |
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| 305 | if (buffer[count] == '\r') |
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| 306 | { |
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| 307 | _IBMPC_outch('\n'); /* CR = CR + LF */ |
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| 308 | } |
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| 309 | |
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[7150f00f] | 310 | if (buffer[count] == '\n' || buffer[count] == '\r') |
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| 311 | { |
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| 312 | /* What if this goes past the end of the buffer? We're hosed. [bhc] */ |
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| 313 | buffer[count++] = '\n'; |
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| 314 | buffer[count] = '\0'; |
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| 315 | break; |
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| 316 | } |
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| 317 | } |
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| 318 | |
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| 319 | rw_args->bytes_moved = count; |
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| 320 | return ((count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED); |
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| 321 | } /* console_read */ |
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| 322 | |
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| 323 | |
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| 324 | /*-------------------------------------------------------------------------+ |
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| 325 | | Console device driver WRITE entry point. |
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| 326 | +--------------------------------------------------------------------------+ |
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| 327 | | Write characters to the I/O console. Stderr and stdout are the same. |
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| 328 | +--------------------------------------------------------------------------*/ |
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| 329 | rtems_device_driver |
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| 330 | console_write(rtems_device_major_number major, |
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| 331 | rtems_device_minor_number minor, |
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| 332 | void * arg) |
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| 333 | { |
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| 334 | rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg; |
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| 335 | char *buffer = rw_args->buffer; |
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| 336 | int count, maximum = rw_args->count; |
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[5d18fb0] | 337 | |
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| 338 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 339 | { |
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| 340 | return rtems_termios_write (arg); |
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| 341 | } |
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[7150f00f] | 342 | |
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| 343 | for (count = 0; count < maximum; count++) |
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| 344 | { |
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[5d18fb0] | 345 | _IBMPC_outch(buffer[count]); |
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[7150f00f] | 346 | if (buffer[count] == '\n') |
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[5d18fb0] | 347 | _IBMPC_outch('\r'); /* LF = LF + CR */ |
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[7150f00f] | 348 | } |
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| 349 | |
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| 350 | rw_args->bytes_moved = maximum; |
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| 351 | return RTEMS_SUCCESSFUL; |
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| 352 | } /* console_write */ |
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| 353 | |
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| 354 | |
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[5d18fb0] | 355 | |
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| 356 | /* |
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| 357 | * Handle ioctl request. |
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| 358 | */ |
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| 359 | rtems_device_driver |
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[7150f00f] | 360 | console_control(rtems_device_major_number major, |
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[5d18fb0] | 361 | rtems_device_minor_number minor, |
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| 362 | void * arg |
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| 363 | ) |
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| 364 | { |
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| 365 | if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) |
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| 366 | { |
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| 367 | return rtems_termios_ioctl (arg); |
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| 368 | } |
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| 369 | |
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[7150f00f] | 370 | return RTEMS_SUCCESSFUL; |
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[5d18fb0] | 371 | } |
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| 372 | |
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| 373 | static int |
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| 374 | conSetAttr(int minor, const struct termios *t) |
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| 375 | { |
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| 376 | int baud; |
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| 377 | |
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| 378 | switch (t->c_cflag & CBAUD) |
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| 379 | { |
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| 380 | case B50: |
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| 381 | baud = 50; |
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| 382 | break; |
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| 383 | case B75: |
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| 384 | baud = 75; |
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| 385 | break; |
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| 386 | case B110: |
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| 387 | baud = 110; |
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| 388 | break; |
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| 389 | case B134: |
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| 390 | baud = 134; |
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| 391 | break; |
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| 392 | case B150: |
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| 393 | baud = 150; |
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| 394 | break; |
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| 395 | case B200: |
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| 396 | baud = 200; |
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| 397 | break; |
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| 398 | case B300: |
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| 399 | baud = 300; |
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| 400 | break; |
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| 401 | case B600: |
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| 402 | baud = 600; |
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| 403 | break; |
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| 404 | case B1200: |
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| 405 | baud = 1200; |
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| 406 | break; |
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| 407 | case B1800: |
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| 408 | baud = 1800; |
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| 409 | break; |
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| 410 | case B2400: |
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| 411 | baud = 2400; |
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| 412 | break; |
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| 413 | case B4800: |
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| 414 | baud = 4800; |
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| 415 | break; |
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| 416 | case B9600: |
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| 417 | baud = 9600; |
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| 418 | break; |
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| 419 | case B19200: |
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| 420 | baud = 19200; |
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| 421 | break; |
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| 422 | case B38400: |
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| 423 | baud = 38400; |
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| 424 | break; |
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| 425 | case B57600: |
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| 426 | baud = 57600; |
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| 427 | break; |
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| 428 | case B115200: |
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| 429 | baud = 115200; |
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| 430 | break; |
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| 431 | default: |
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| 432 | baud = 0; |
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| 433 | rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); |
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| 434 | return 0; |
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| 435 | } |
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| 436 | |
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| 437 | PC386_uart_set_baud(PC386ConsolePort, baud); |
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| 438 | |
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| 439 | return 0; |
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| 440 | } |
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| 441 | |
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[bd8c8b2a] | 442 | /* |
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| 443 | * BSP initialization |
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| 444 | */ |
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| 445 | |
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[2d7d605] | 446 | BSP_output_char_function_type BSP_output_char = |
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| 447 | (BSP_output_char_function_type) _IBMPC_outch; |
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| 448 | |
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| 449 | BSP_polling_getchar_function_type BSP_poll_char = BSP_wait_polled_input; |
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| 450 | |
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[bd8c8b2a] | 451 | void BSP_emergency_output_init() |
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| 452 | { |
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| 453 | _IBMPC_initVideo(); |
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| 454 | } |
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[5d18fb0] | 455 | |
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| 456 | |
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