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/*
* 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.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include "test_driver.h"
#include <rtems/libio.h>
#include <rtems/devnull.h>
/*
* The test driver routines are mostly derived from the null driver routines.
*/
uint32_t TEST_major;
static char initialized;
/* testDriver_initialize
*
* This routine is the test device driver init routine.
*
* Input parameters:
* major - device major number
* minor - device minor number
* pargp - pointer to parameter block
*
* Output parameters:
* rval - RTEMS_SUCCESSFUL
*/
rtems_device_driver testDriver_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor __attribute__((unused)),
void *pargp __attribute__((unused))
)
{
rtems_device_driver status;
if ( !initialized ) {
initialized = 1;
status = rtems_io_register_name(
"/dev/test",
major,
(rtems_device_minor_number) 0
);
if (status != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred(status);
TEST_major = major;
}
return RTEMS_SUCCESSFUL;
}
/* testDriver_open
*
* This routine is the test device driver open routine.
*
* Input parameters:
* major - device major number
* minor - device minor number
* pargb - pointer to open parameter block
*
* Output parameters:
* rval - RTEMS_SUCCESSFUL
*/
rtems_device_driver testDriver_open(
rtems_device_major_number major __attribute__((unused)),
rtems_device_minor_number minor __attribute__((unused)),
void *pargp __attribute__((unused))
)
{
return RTEMS_SUCCESSFUL;
}
/* testDriver_close
*
* This routine is the test device driver close routine.
*
* Input parameters:
* major - device major number
* minor - device minor number
* pargb - pointer to close parameter block
*
* Output parameters:
* rval - RTEMS_SUCCESSFUL
*/
rtems_device_driver testDriver_close(
rtems_device_major_number major __attribute__((unused)),
rtems_device_minor_number minor __attribute__((unused)),
void *pargp __attribute__((unused))
)
{
return RTEMS_SUCCESSFUL;
}
/* testDriver_read
*
* This routine is the test device driver read routine.
*
* Input parameters:
* major - device major number
* minor - device minor number
* pargp - pointer to read parameter block
*
* Output parameters:
* rval - RTEMS_SUCCESSFUL
*/
rtems_device_driver testDriver_read(
rtems_device_major_number major __attribute__((unused)),
rtems_device_minor_number minor __attribute__((unused)),
void *pargp
)
{
rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) pargp;
if ( rw_args ) {
if( rw_args->count == 5 )
rw_args->bytes_moved = 0;
else {
rw_args->bytes_moved = 0;
return RTEMS_NOT_IMPLEMENTED;
}
}
return RTEMS_SUCCESSFUL;
}
/* testDriver_write
*
* This routine is the test device driver write routine.
*
* Input parameters:
* major - device major number
* minor - device minor number
* pargp - pointer to write parameter block
*
* Output parameters:
* rval - RTEMS_SUCCESSFUL
*/
rtems_device_driver testDriver_write(
rtems_device_major_number major __attribute__((unused)),
rtems_device_minor_number minor __attribute__((unused)),
void *pargp
)
{
rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) pargp;
if ( rw_args ) {
if( rw_args->count == 5 )
return null_write( 0, 0, pargp );
else {
rw_args->bytes_moved = 0;
return RTEMS_NOT_IMPLEMENTED;
}
}
return RTEMS_SUCCESSFUL;
}
/* testDriver_control
*
* This routine is the test device driver control routine.
*
* Input parameters:
* major - device major number
* minor - device minor number
* pargp - pointer to cntrl parameter block
*
* Output parameters:
* rval - RTEMS_SUCCESSFUL
*/
rtems_device_driver testDriver_control(
rtems_device_major_number major __attribute__((unused)),
rtems_device_minor_number minor __attribute__((unused)),
void *pargp __attribute__((unused))
)
{
return RTEMS_NOT_IMPLEMENTED;
}
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