[fcee56c0] | 1 | /* |
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| 2 | * console.c -- console I/O package |
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| 3 | * |
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| 4 | * Copyright (C) 1999 Eric Valette. valette@crf.canon.fr |
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| 5 | * |
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| 6 | * This code is based on the pc386 BSP console.c so the following |
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| 7 | * copyright also applies : |
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| 8 | * |
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| 9 | * (C) Copyright 1997 - |
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| 10 | * - NavIST Group - Real-Time Distributed Systems and Industrial Automation |
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| 11 | * |
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| 12 | * http://pandora.ist.utl.pt |
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| 13 | * |
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| 14 | * Instituto Superior Tecnico * Lisboa * PORTUGAL |
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| 15 | * The license and distribution terms for this file may be |
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| 16 | * found in found in the file LICENSE in this distribution or at |
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| 17 | * http://www.OARcorp.com/rtems/license.html. |
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| 18 | * |
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| 19 | * $Id$ |
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| 20 | */ |
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| 21 | |
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[ba46ffa6] | 22 | #include <stdlib.h> |
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| 23 | #include <assert.h> |
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[93180ea2] | 24 | #include <stdlib.h> |
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| 25 | |
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[ba46ffa6] | 26 | #undef __assert |
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| 27 | void __assert (const char *file, int line, const char *msg); |
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[93180ea2] | 28 | extern int close(int fd); |
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[ba46ffa6] | 29 | |
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| 30 | #include <bsp.h> |
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| 31 | #include <bsp/irq.h> |
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| 32 | #include <rtems/libio.h> |
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| 33 | #include <termios.h> |
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| 34 | #include <bsp/uart.h> |
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| 35 | #include <bsp/consoleIo.h> |
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| 36 | |
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| 37 | /* Definitions for BSPConsolePort */ |
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| 38 | #define BSP_CONSOLE_PORT_CONSOLE (-1) |
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| 39 | #define BSP_CONSOLE_PORT_COM1 (BSP_UART_COM1) |
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| 40 | #define BSP_CONSOLE_PORT_COM2 (BSP_UART_COM2) |
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| 41 | /* |
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| 42 | * Possible value for console input/output : |
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| 43 | * BSP_CONSOLE_PORT_CONSOLE |
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| 44 | * BSP_UART_COM1 |
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| 45 | * BSP_UART_COM2 |
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| 46 | */ |
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| 47 | |
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[acc25ee] | 48 | int BSPConsolePort = BSP_UART_COM1; |
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[ba46ffa6] | 49 | |
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| 50 | /* int BSPConsolePort = BSP_UART_COM2; */ |
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[acc25ee] | 51 | int BSPBaseBaud = 115200; |
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[ba46ffa6] | 52 | |
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| 53 | /*-------------------------------------------------------------------------+ |
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| 54 | | External Prototypes |
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| 55 | +--------------------------------------------------------------------------*/ |
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| 56 | |
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| 57 | static int conSetAttr(int minor, const struct termios *); |
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| 58 | static void isr_on(const rtems_irq_connect_data *); |
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| 59 | static void isr_off(const rtems_irq_connect_data *); |
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| 60 | static int isr_is_on(const rtems_irq_connect_data *); |
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| 61 | |
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| 62 | |
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| 63 | static rtems_irq_connect_data console_isr_data = {BSP_ISA_UART_COM1_IRQ, |
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| 64 | BSP_uart_termios_isr_com1, |
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| 65 | isr_on, |
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| 66 | isr_off, |
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| 67 | isr_is_on}; |
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| 68 | |
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| 69 | static void |
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| 70 | isr_on(const rtems_irq_connect_data *unused) |
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| 71 | { |
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| 72 | return; |
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| 73 | } |
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| 74 | |
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| 75 | static void |
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| 76 | isr_off(const rtems_irq_connect_data *unused) |
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| 77 | { |
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| 78 | return; |
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| 79 | } |
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| 80 | |
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| 81 | static int |
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| 82 | isr_is_on(const rtems_irq_connect_data *irq) |
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| 83 | { |
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| 84 | return BSP_irq_enabled_at_i8259s(irq->name); |
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| 85 | } |
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| 86 | |
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| 87 | void __assert (const char *file, int line, const char *msg) |
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| 88 | { |
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| 89 | static char exit_msg[] = "EXECUTIVE SHUTDOWN! Any key to reboot..."; |
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| 90 | unsigned char ch; |
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| 91 | |
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| 92 | /* |
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| 93 | * Note we cannot call exit or printf from here, |
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| 94 | * assert can fail inside ISR too |
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| 95 | */ |
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| 96 | |
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| 97 | /* |
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| 98 | * Close console |
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| 99 | */ |
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| 100 | close(2); |
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| 101 | close(1); |
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| 102 | close(0); |
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| 103 | |
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| 104 | printk("\nassert failed: %s: ", file); |
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| 105 | printk("%d: ", line); |
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| 106 | printk("%s\n\n", msg); |
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| 107 | printk(exit_msg); |
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| 108 | ch = debug_getc(); |
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| 109 | printk("\n\n"); |
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| 110 | rtemsReboot(); |
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| 111 | |
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| 112 | } |
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| 113 | |
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| 114 | |
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| 115 | /*-------------------------------------------------------------------------+ |
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| 116 | | Console device driver INITIALIZE entry point. |
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| 117 | +--------------------------------------------------------------------------+ |
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| 118 | | Initilizes the I/O console (keyboard + VGA display) driver. |
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| 119 | +--------------------------------------------------------------------------*/ |
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| 120 | rtems_device_driver |
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| 121 | console_initialize(rtems_device_major_number major, |
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| 122 | rtems_device_minor_number minor, |
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| 123 | void *arg) |
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| 124 | { |
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| 125 | rtems_status_code status; |
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| 126 | |
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| 127 | /* |
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| 128 | * The video was initialized in the start.s code and does not need |
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| 129 | * to be reinitialized. |
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| 130 | */ |
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| 131 | |
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| 132 | |
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| 133 | /* |
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| 134 | * Set up TERMIOS |
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| 135 | */ |
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| 136 | rtems_termios_initialize (); |
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| 137 | |
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| 138 | /* |
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| 139 | * Do device-specific initialization |
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| 140 | */ |
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| 141 | |
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| 142 | /* 9600-8-N-1 */ |
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| 143 | BSP_uart_init(BSPConsolePort, 9600, 0); |
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| 144 | |
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| 145 | |
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| 146 | /* Set interrupt handler */ |
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| 147 | if(BSPConsolePort == BSP_UART_COM1) |
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| 148 | { |
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| 149 | console_isr_data.name = BSP_ISA_UART_COM1_IRQ; |
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| 150 | console_isr_data.hdl = BSP_uart_termios_isr_com1; |
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| 151 | |
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| 152 | } |
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| 153 | else |
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| 154 | { |
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| 155 | assert(BSPConsolePort == BSP_UART_COM2); |
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| 156 | console_isr_data.name = BSP_ISA_UART_COM2_IRQ; |
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| 157 | console_isr_data.hdl = BSP_uart_termios_isr_com2; |
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| 158 | } |
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| 159 | |
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| 160 | status = BSP_install_rtems_irq_handler(&console_isr_data); |
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| 161 | |
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| 162 | if (!status){ |
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| 163 | printk("Error installing serial console interrupt handler!\n"); |
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| 164 | rtems_fatal_error_occurred(status); |
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| 165 | } |
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| 166 | /* |
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| 167 | * Register the device |
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| 168 | */ |
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| 169 | status = rtems_io_register_name ("/dev/console", major, 0); |
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| 170 | if (status != RTEMS_SUCCESSFUL) |
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| 171 | { |
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| 172 | printk("Error registering console device!\n"); |
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| 173 | rtems_fatal_error_occurred (status); |
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| 174 | } |
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| 175 | |
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| 176 | if(BSPConsolePort == BSP_UART_COM1) |
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| 177 | { |
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| 178 | printk("Initialized console on port COM1 9600-8-N-1\n\n"); |
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| 179 | } |
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| 180 | else |
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| 181 | { |
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| 182 | printk("Initialized console on port COM2 9600-8-N-1\n\n"); |
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| 183 | } |
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| 184 | return RTEMS_SUCCESSFUL; |
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| 185 | } /* console_initialize */ |
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| 186 | |
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| 187 | |
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| 188 | static int console_last_close(int major, int minor, void *arg) |
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| 189 | { |
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| 190 | BSP_remove_rtems_irq_handler (&console_isr_data); |
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| 191 | |
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| 192 | return 0; |
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| 193 | } |
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| 194 | |
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| 195 | /*-------------------------------------------------------------------------+ |
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| 196 | | Console device driver OPEN entry point |
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| 197 | +--------------------------------------------------------------------------*/ |
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| 198 | rtems_device_driver |
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| 199 | console_open(rtems_device_major_number major, |
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| 200 | rtems_device_minor_number minor, |
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| 201 | void *arg) |
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| 202 | { |
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| 203 | rtems_status_code status; |
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| 204 | static rtems_termios_callbacks cb = |
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| 205 | { |
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| 206 | NULL, /* firstOpen */ |
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| 207 | console_last_close, /* lastClose */ |
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| 208 | NULL, /* pollRead */ |
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| 209 | BSP_uart_termios_write_com1, /* write */ |
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| 210 | conSetAttr, /* setAttributes */ |
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| 211 | NULL, /* stopRemoteTx */ |
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| 212 | NULL, /* startRemoteTx */ |
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| 213 | 1 /* outputUsesInterrupts */ |
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| 214 | }; |
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| 215 | |
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| 216 | if(BSPConsolePort == BSP_UART_COM2) |
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| 217 | { |
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| 218 | cb.write = BSP_uart_termios_write_com2; |
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| 219 | } |
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| 220 | |
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| 221 | status = rtems_termios_open (major, minor, arg, &cb); |
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| 222 | |
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| 223 | if(status != RTEMS_SUCCESSFUL) |
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| 224 | { |
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| 225 | printk("Error openning console device\n"); |
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| 226 | return status; |
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| 227 | } |
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| 228 | |
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| 229 | /* |
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| 230 | * Pass data area info down to driver |
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| 231 | */ |
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| 232 | BSP_uart_termios_set(BSPConsolePort, |
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| 233 | ((rtems_libio_open_close_args_t *)arg)->iop->data1); |
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| 234 | /* Enable interrupts on channel */ |
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| 235 | BSP_uart_intr_ctrl(BSPConsolePort, BSP_UART_INTR_CTRL_TERMIOS); |
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| 236 | |
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| 237 | return RTEMS_SUCCESSFUL; |
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| 238 | } |
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| 239 | |
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| 240 | /*-------------------------------------------------------------------------+ |
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| 241 | | Console device driver CLOSE entry point |
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| 242 | +--------------------------------------------------------------------------*/ |
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| 243 | rtems_device_driver |
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| 244 | console_close(rtems_device_major_number major, |
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| 245 | rtems_device_minor_number minor, |
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| 246 | void *arg) |
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| 247 | { |
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| 248 | rtems_device_driver res = RTEMS_SUCCESSFUL; |
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| 249 | |
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| 250 | res = rtems_termios_close (arg); |
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| 251 | |
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| 252 | return res; |
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| 253 | } /* console_close */ |
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| 254 | |
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| 255 | |
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| 256 | /*-------------------------------------------------------------------------+ |
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| 257 | | Console device driver READ entry point. |
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| 258 | +--------------------------------------------------------------------------+ |
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| 259 | | Read characters from the I/O console. We only have stdin. |
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| 260 | +--------------------------------------------------------------------------*/ |
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| 261 | rtems_device_driver |
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| 262 | console_read(rtems_device_major_number major, |
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| 263 | rtems_device_minor_number minor, |
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| 264 | void *arg) |
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| 265 | { |
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| 266 | |
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| 267 | return rtems_termios_read (arg); |
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| 268 | } /* console_read */ |
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| 269 | |
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| 270 | |
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| 271 | /*-------------------------------------------------------------------------+ |
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| 272 | | Console device driver WRITE entry point. |
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| 273 | +--------------------------------------------------------------------------+ |
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| 274 | | Write characters to the I/O console. Stderr and stdout are the same. |
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| 275 | +--------------------------------------------------------------------------*/ |
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| 276 | rtems_device_driver |
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| 277 | console_write(rtems_device_major_number major, |
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| 278 | rtems_device_minor_number minor, |
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| 279 | void * arg) |
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| 280 | { |
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| 281 | |
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| 282 | return rtems_termios_write (arg); |
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| 283 | |
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| 284 | } /* console_write */ |
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| 285 | |
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| 286 | |
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| 287 | |
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| 288 | /* |
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| 289 | * Handle ioctl request. |
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| 290 | */ |
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| 291 | rtems_device_driver |
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| 292 | console_control(rtems_device_major_number major, |
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| 293 | rtems_device_minor_number minor, |
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| 294 | void * arg |
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| 295 | ) |
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| 296 | { |
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| 297 | return rtems_termios_ioctl (arg); |
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| 298 | } |
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| 299 | |
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| 300 | static int |
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| 301 | conSetAttr(int minor, const struct termios *t) |
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| 302 | { |
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| 303 | int baud; |
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| 304 | |
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| 305 | switch (t->c_cflag & CBAUD) |
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| 306 | { |
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| 307 | case B50: |
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| 308 | baud = 50; |
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| 309 | break; |
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| 310 | case B75: |
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| 311 | baud = 75; |
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| 312 | break; |
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| 313 | case B110: |
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| 314 | baud = 110; |
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| 315 | break; |
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| 316 | case B134: |
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| 317 | baud = 134; |
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| 318 | break; |
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| 319 | case B150: |
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| 320 | baud = 150; |
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| 321 | break; |
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| 322 | case B200: |
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| 323 | baud = 200; |
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| 324 | break; |
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| 325 | case B300: |
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| 326 | baud = 300; |
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| 327 | break; |
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| 328 | case B600: |
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| 329 | baud = 600; |
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| 330 | break; |
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| 331 | case B1200: |
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| 332 | baud = 1200; |
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| 333 | break; |
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| 334 | case B1800: |
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| 335 | baud = 1800; |
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| 336 | break; |
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| 337 | case B2400: |
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| 338 | baud = 2400; |
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| 339 | break; |
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| 340 | case B4800: |
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| 341 | baud = 4800; |
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| 342 | break; |
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| 343 | case B9600: |
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| 344 | baud = 9600; |
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| 345 | break; |
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| 346 | case B19200: |
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| 347 | baud = 19200; |
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| 348 | break; |
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| 349 | case B38400: |
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| 350 | baud = 38400; |
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| 351 | break; |
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| 352 | case B57600: |
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| 353 | baud = 57600; |
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| 354 | break; |
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| 355 | case B115200: |
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| 356 | baud = 115200; |
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| 357 | break; |
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| 358 | default: |
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| 359 | baud = 0; |
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| 360 | rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); |
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| 361 | return 0; |
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| 362 | } |
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| 363 | |
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| 364 | BSP_uart_set_baud(BSPConsolePort, baud); |
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| 365 | |
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| 366 | return 0; |
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| 367 | } |
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| 368 | |
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| 369 | |
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| 370 | |
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