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/*
* This file contains the TTY driver for the PPCn_60x
*
* This driver uses the termios pseudo driver.
*
* COPYRIGHT (c) 1998 by Radstone Technology
*
*
* THIS FILE IS PROVIDED TO YOU, THE USER, "AS IS", WITHOUT WARRANTY OF ANY
* KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK
* AS TO THE QUALITY AND PERFORMANCE OF ALL CODE IN THIS FILE IS WITH YOU.
*
* You are hereby granted permission to use, copy, modify, and distribute
* this file, provided that this notice, plus the above copyright notice
* and disclaimer, appears in all copies. Radstone Technology will provide
* no support for this code.
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
#include <termios.h>
#include <libchip/serial.h>
/*
* Load configuration table
*/
extern console_data Console_Port_Data[];
extern unsigned long Console_Port_Count;
extern rtems_device_minor_number Console_Port_Minor;
/* PAGE
*
* console_open
*
* open a port as a termios console.
*
*/
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_status_code status;
rtems_libio_open_close_args_t *args = arg;
rtems_libio_ioctl_args_t IoctlArgs;
struct termios Termios;
rtems_termios_callbacks Callbacks;
console_tbl *cptr;
/*
* Verify the port number is valid.
*/
if ( minor > Console_Port_Count ) {
return RTEMS_INVALID_NUMBER;
}
/*
* Open the port as a termios console driver.
*/
cptr = &Console_Port_Tbl[minor];
Callbacks.firstOpen = cptr->pDeviceFns->deviceFirstOpen;
Callbacks.lastClose = cptr->pDeviceFns->deviceLastClose;
Callbacks.pollRead = cptr->pDeviceFns->deviceRead;
Callbacks.write = cptr->pDeviceFns->deviceWrite;
Callbacks.setAttributes = cptr->pDeviceFns->deviceSetAttributes;
Callbacks.stopRemoteTx = cptr->pDeviceFlow->deviceStopRemoteTx;
Callbacks.startRemoteTx = cptr->pDeviceFlow->deviceStartRemoteTx;
Callbacks.outputUsesInterrupts = cptr->pDeviceFns->deviceOutputUsesInterrupts;
/* XXX what about
* Console_Port_Tbl[minor].ulMargin,
* Console_Port_Tbl[minor].ulHysteresis);
*/
status = rtems_termios_open ( major, minor, arg, &Callbacks );
Console_Port_Data[minor].termios_data = args->iop->data1;
if (minor!=Console_Port_Minor) {
/*
* If this is not the console we do not want ECHO and
* so forth
*/
IoctlArgs.iop=args->iop;
IoctlArgs.command=RTEMS_IO_GET_ATTRIBUTES;
IoctlArgs.buffer=&Termios;
rtems_termios_ioctl(&IoctlArgs);
Termios.c_lflag=ICANON;
IoctlArgs.command=RTEMS_IO_SET_ATTRIBUTES;
rtems_termios_ioctl(&IoctlArgs);
}
if ( (args->iop->flags&LIBIO_FLAGS_READ) &&
Console_Port_Tbl[minor].pDeviceFlow &&
Console_Port_Tbl[minor].pDeviceFlow->deviceStartRemoteTx) {
Console_Port_Tbl[minor].pDeviceFlow->deviceStartRemoteTx(minor);
}
return status;
}
void console_reserve_resources(
rtems_configuration_table *configuration
)
{
rtems_termios_reserve_resources( configuration, 4 );
}
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_libio_open_close_args_t *args = arg;
if ( (args->iop->flags&LIBIO_FLAGS_READ) &&
Console_Port_Tbl[minor].pDeviceFlow &&
Console_Port_Tbl[minor].pDeviceFlow->deviceStopRemoteTx) {
Console_Port_Tbl[minor].pDeviceFlow->deviceStopRemoteTx(minor);
}
return rtems_termios_close (arg);
}
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read (arg);
}
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write (arg);
}
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
/* PAGE
*
* console_initialize
*
* Routine called to initialize the console device driver.
*/
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code status;
/*
* initialize the termio interface.
*/
rtems_termios_initialize();
for (minor=0; minor<Console_Port_Count; minor++) {
/*
* First perform the configuration dependent probe, then the
* device dependent probe
*/
if ((!Console_Port_Tbl[minor].deviceProbe ||
Console_Port_Tbl[minor].deviceProbe(minor)) &&
Console_Port_Tbl[minor].pDeviceFns->deviceProbe(minor)) {
/*
* Use this device for the console
*/
break;
}
}
if ( minor==Console_Port_Count ) {
/*
* Failed to find a working device
*/
rtems_fatal_error_occurred(RTEMS_IO_ERROR);
}
Console_Port_Minor=minor;
/*
* Register Device Names
*/
status = rtems_io_register_name("/dev/console", major, Console_Port_Minor );
if (status != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(status);
}
Console_Port_Tbl[minor].pDeviceFns->deviceInitialize(Console_Port_Minor);
for (minor++;minor<Console_Port_Count;minor++) {
/*
* First perform the configuration dependent probe, then the
* device dependent probe
*/
if ( (!Console_Port_Tbl[minor].deviceProbe ||
Console_Port_Tbl[minor].deviceProbe(minor)) &&
Console_Port_Tbl[minor].pDeviceFns->deviceProbe(minor)) {
status = rtems_io_register_name(
Console_Port_Tbl[minor].sDeviceName,
major,
minor );
if (status != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(status);
}
/*
* Initialize the hardware device.
*/
Console_Port_Tbl[minor].pDeviceFns->deviceInitialize(minor);
}
}
return RTEMS_SUCCESSFUL;
}
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