/*
* console.c -- console I/O package
*
* Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
*
* This code is based on the pc386 BSP console.c so the following
* copyright also applies :
*
* (C) Copyright 1997 -
* - NavIST Group - Real-Time Distributed Systems and Industrial Automation
*
* http://pandora.ist.utl.pt
*
* Instituto Superior Tecnico * Lisboa * PORTUGAL
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <stdlib.h>
#include <assert.h>
#include <stdlib.h>
#undef __assert
void __assert (const char *file, int line, const char *msg);
extern int close(int fd);
#include <bsp.h>
#include <bsp/irq.h>
#include <rtems/libio.h>
#include <termios.h>
#include <bsp/uart.h>
#include <bsp/consoleIo.h>
/* Definitions for BSPConsolePort */
#define BSP_CONSOLE_PORT_CONSOLE (-1)
#define BSP_CONSOLE_PORT_COM1 (BSP_UART_COM1)
#define BSP_CONSOLE_PORT_COM2 (BSP_UART_COM2)
/*
* Possible value for console input/output :
* BSP_CONSOLE_PORT_CONSOLE
* BSP_UART_COM1
* BSP_UART_COM2
*/
int BSPConsolePort = BSP_UART_COM1;
/* int BSPConsolePort = BSP_UART_COM2; */
int BSPBaseBaud = 115200;
/*-------------------------------------------------------------------------+
| External Prototypes
+--------------------------------------------------------------------------*/
static int conSetAttr(int minor, const struct termios *);
static void isr_on(const rtems_irq_connect_data *);
static void isr_off(const rtems_irq_connect_data *);
static int isr_is_on(const rtems_irq_connect_data *);
static rtems_irq_connect_data console_isr_data = {BSP_ISA_UART_COM1_IRQ,
BSP_uart_termios_isr_com1,
isr_on,
isr_off,
isr_is_on};
static void
isr_on(const rtems_irq_connect_data *unused)
{
return;
}
static void
isr_off(const rtems_irq_connect_data *unused)
{
return;
}
static int
isr_is_on(const rtems_irq_connect_data *irq)
{
return BSP_irq_enabled_at_i8259s(irq->name);
}
void console_reserve_resources(rtems_configuration_table *conf)
{
if(BSPConsolePort != BSP_CONSOLE_PORT_CONSOLE)
{
rtems_termios_reserve_resources(conf, 1);
}
return;
}
void __assert (const char *file, int line, const char *msg)
{
static char exit_msg[] = "EXECUTIVE SHUTDOWN! Any key to reboot...";
unsigned char ch;
/*
* Note we cannot call exit or printf from here,
* assert can fail inside ISR too
*/
/*
* Close console
*/
close(2);
close(1);
close(0);
printk("\nassert failed: %s: ", file);
printk("%d: ", line);
printk("%s\n\n", msg);
printk(exit_msg);
ch = debug_getc();
printk("\n\n");
rtemsReboot();
}
/*-------------------------------------------------------------------------+
| Console device driver INITIALIZE entry point.
+--------------------------------------------------------------------------+
| Initilizes the I/O console (keyboard + VGA display) driver.
+--------------------------------------------------------------------------*/
rtems_device_driver
console_initialize(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_status_code status;
/*
* The video was initialized in the start.s code and does not need
* to be reinitialized.
*/
/*
* Set up TERMIOS
*/
rtems_termios_initialize ();
/*
* Do device-specific initialization
*/
/* 9600-8-N-1 */
BSP_uart_init(BSPConsolePort, 9600, 0);
/* Set interrupt handler */
if(BSPConsolePort == BSP_UART_COM1)
{
console_isr_data.name = BSP_ISA_UART_COM1_IRQ;
console_isr_data.hdl = BSP_uart_termios_isr_com1;
}
else
{
assert(BSPConsolePort == BSP_UART_COM2);
console_isr_data.name = BSP_ISA_UART_COM2_IRQ;
console_isr_data.hdl = BSP_uart_termios_isr_com2;
}
status = BSP_install_rtems_irq_handler(&console_isr_data);
if (!status){
printk("Error installing serial console interrupt handler!\n");
rtems_fatal_error_occurred(status);
}
/*
* Register the device
*/
status = rtems_io_register_name ("/dev/console", major, 0);
if (status != RTEMS_SUCCESSFUL)
{
printk("Error registering console device!\n");
rtems_fatal_error_occurred (status);
}
if(BSPConsolePort == BSP_UART_COM1)
{
printk("Initialized console on port COM1 9600-8-N-1\n\n");
}
else
{
printk("Initialized console on port COM2 9600-8-N-1\n\n");
}
return RTEMS_SUCCESSFUL;
} /* console_initialize */
static int console_last_close(int major, int minor, void *arg)
{
BSP_remove_rtems_irq_handler (&console_isr_data);
return 0;
}
/*-------------------------------------------------------------------------+
| Console device driver OPEN entry point
+--------------------------------------------------------------------------*/
rtems_device_driver
console_open(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_status_code status;
static rtems_termios_callbacks cb =
{
NULL, /* firstOpen */
console_last_close, /* lastClose */
NULL, /* pollRead */
BSP_uart_termios_write_com1, /* write */
conSetAttr, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
1 /* outputUsesInterrupts */
};
if(BSPConsolePort == BSP_UART_COM2)
{
cb.write = BSP_uart_termios_write_com2;
}
status = rtems_termios_open (major, minor, arg, &cb);
if(status != RTEMS_SUCCESSFUL)
{
printk("Error openning console device\n");
return status;
}
/*
* Pass data area info down to driver
*/
BSP_uart_termios_set(BSPConsolePort,
((rtems_libio_open_close_args_t *)arg)->iop->data1);
/* Enable interrupts on channel */
BSP_uart_intr_ctrl(BSPConsolePort, BSP_UART_INTR_CTRL_TERMIOS);
return RTEMS_SUCCESSFUL;
}
/*-------------------------------------------------------------------------+
| Console device driver CLOSE entry point
+--------------------------------------------------------------------------*/
rtems_device_driver
console_close(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_device_driver res = RTEMS_SUCCESSFUL;
res = rtems_termios_close (arg);
return res;
} /* console_close */
/*-------------------------------------------------------------------------+
| Console device driver READ entry point.
+--------------------------------------------------------------------------+
| Read characters from the I/O console. We only have stdin.
+--------------------------------------------------------------------------*/
rtems_device_driver
console_read(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
return rtems_termios_read (arg);
} /* console_read */
/*-------------------------------------------------------------------------+
| Console device driver WRITE entry point.
+--------------------------------------------------------------------------+
| Write characters to the I/O console. Stderr and stdout are the same.
+--------------------------------------------------------------------------*/
rtems_device_driver
console_write(rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg)
{
return rtems_termios_write (arg);
} /* console_write */
/*
* Handle ioctl request.
*/
rtems_device_driver
console_control(rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
static int
conSetAttr(int minor, const struct termios *t)
{
int baud;
switch (t->c_cflag & CBAUD)
{
case B50:
baud = 50;
break;
case B75:
baud = 75;
break;
case B110:
baud = 110;
break;
case B134:
baud = 134;
break;
case B150:
baud = 150;
break;
case B200:
baud = 200;
break;
case B300:
baud = 300;
break;
case B600:
baud = 600;
break;
case B1200:
baud = 1200;
break;
case B1800:
baud = 1800;
break;
case B2400:
baud = 2400;
break;
case B4800:
baud = 4800;
break;
case B9600:
baud = 9600;
break;
case B19200:
baud = 19200;
break;
case B38400:
baud = 38400;
break;
case B57600:
baud = 57600;
break;
case B115200:
baud = 115200;
break;
default:
baud = 0;
rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR);
return 0;
}
BSP_uart_set_baud(BSPConsolePort, baud);
return 0;
}
