/*
* This file contains a test fixture termios device driver
*
* COPYRIGHT (c) 1989-2010.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tmacros.h"
#include <rtems/libio.h>
#include <stdlib.h>
#include <termios.h>
#include <rtems/termiostypes.h>
#include <rtems/dumpbuf.h>
#include "termios_testdriver_taskdriven.h"
#define TX_MAX 1024
uint8_t Tx_Buffer[TX_MAX];
int Tx_Index = 0;
void termios_test_driver_dump_tx(const char *c)
{
printf( "%s %d characters\n", c, Tx_Index );
rtems_print_buffer( Tx_Buffer, Tx_Index );
Tx_Index = 0;
}
const uint8_t *Rx_Buffer;
int Rx_Index;
int Rx_Length;
bool Rx_FirstTime = true;
void termios_test_driver_set_rx(
const void *p,
size_t len
)
{
Rx_Buffer = p;
Rx_Length = len;
Rx_Index = 0;
}
int termios_test_driver_inbyte_nonblocking( int port )
{
if ( Rx_FirstTime == true ) {
Rx_FirstTime = false;
return -1;
}
if ( Rx_Index >= Rx_Length )
return -1;
return Rx_Buffer[ Rx_Index++ ];
}
void termios_test_driver_outbyte_polled(
int port,
char ch
)
{
Tx_Buffer[Tx_Index++] = (uint8_t) ch;
}
ssize_t termios_test_driver_write_support (int minor, const char *buf, size_t len)
{
size_t nwrite = 0;
while (nwrite < len) {
termios_test_driver_outbyte_polled( minor, *buf++ );
nwrite++;
}
return nwrite;
}
/*
* Set Attributes Handler
*/
int termios_test_driver_set_attributes(
int minor,
const struct termios *t
)
{
return 0;
}
/*
* Test Device Driver Entry Points
*/
rtems_device_driver termios_test_driver_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_termios_initialize();
/*
* Register Device Names
*/
(void) rtems_io_register_name( TERMIOS_TEST_DRIVER_DEVICE_NAME, major, 0 );
return RTEMS_SUCCESSFUL;
}
rtems_device_driver termios_test_driver_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_status_code sc;
static const rtems_termios_callbacks Callbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
termios_test_driver_inbyte_nonblocking, /* pollRead */
termios_test_driver_write_support, /* write */
termios_test_driver_set_attributes, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
TERMIOS_TASK_DRIVEN /* outputUsesInterrupts */
};
if ( minor > 2 ) {
puts( "ERROR - Termios_testdriver - only 1 minor supported" );
rtems_test_exit(0);
}
sc = rtems_termios_open (major, minor, arg, &Callbacks);
return RTEMS_SUCCESSFUL;
}
rtems_device_driver termios_test_driver_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_close (arg);
}
rtems_device_driver termios_test_driver_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read (arg);
}
rtems_device_driver termios_test_driver_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write (arg);
}
rtems_device_driver termios_test_driver_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
