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/*! @file
* @brief Test disk block device implementation.
*
* Copyright (C) 2010 OKTET Labs, St.-Petersburg, Russia
* Author: Oleg Kravtsov <Oleg.Kravtsov@oktetlabs.ru>
*
* 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.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include <rtems/libio.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "rtems/blkdev.h"
#include "rtems/diskdevs.h"
#include "bdbuf_tests.h"
static Objects_Id drvq_id = OBJECTS_ID_NONE;
static Objects_Id testq_id = OBJECTS_ID_NONE;
static int
test_disk_ioctl(rtems_disk_device *dd, uint32_t req, void *argp)
{
rtems_status_code rc;
bdbuf_test_msg msg;
size_t msg_size;
rtems_blkdev_request *r;
switch (req)
{
case RTEMS_BLKIO_REQUEST:
{
rtems_blkdev_sg_buffer *sg;
unsigned int i;
r = argp;
printk("DISK_DRV: %s ",
r->req == RTEMS_BLKDEV_REQ_READ ? "R" :
r->req == RTEMS_BLKDEV_REQ_WRITE ? "W" : "?");
for (i = 0, sg = r->bufs; i < r->bufnum; i++, sg++)
{
printk("[%d] ", sg->block);
}
printk("\n");
break;
}
default:
printk("%s() Unexpected request comes %u\n",
__FUNCTION__, req);
return -1;
}
memset(&msg, 0, sizeof(msg));
msg.type = BDBUF_TEST_MSG_TYPE_DRIVER_REQ;
msg.val.driver_req.dd = dd;
msg.val.driver_req.req = req;
msg.val.driver_req.argp = argp;
rc = rtems_message_queue_send(testq_id, &msg, sizeof(msg));
if (rc != RTEMS_SUCCESSFUL)
{
printf("Error while sending a message to Test task: %u\n", rc);
rtems_blkdev_request_done(r, RTEMS_IO_ERROR);
return 0;
}
/* Wait for a reply from the test task */
msg_size = sizeof(msg);
rc = rtems_message_queue_receive(drvq_id, &msg, &msg_size,
RTEMS_WAIT, RTEMS_NO_TIMEOUT);
if (rc != RTEMS_SUCCESSFUL)
{
printf("Error while reading a message from Test task: %u\n", rc);
rtems_blkdev_request_done(r, RTEMS_IO_ERROR);
return 0;
}
if (msg.type != BDBUF_TEST_MSG_TYPE_DRIVER_REPLY)
{
printf("Unexpected message comes to test disk driver: %d\n",
msg.type);
rtems_blkdev_request_done(r, RTEMS_IO_ERROR);
return 0;
}
if (msg.val.driver_reply.ret_val != 0)
{
rtems_blkdev_request_done(r, RTEMS_IO_ERROR);
}
else
{
rtems_blkdev_request_done(r, msg.val.driver_reply.res_status);
}
return 0;
}
rtems_device_driver
test_disk_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_status_code rc;
dev_t dev;
rc = rtems_disk_io_initialize();
if (rc != RTEMS_SUCCESSFUL)
return rc;
dev = rtems_filesystem_make_dev_t(major, minor);
rc = rtems_disk_create_phys(dev,
TEST_DISK_BLOCK_SIZE, TEST_DISK_BLOCK_NUM,
test_disk_ioctl,
NULL,
TEST_DISK_NAME);
if (rc != RTEMS_SUCCESSFUL)
{
printf("Failed to create %s disk\n", TEST_DISK_NAME);
return rc;
}
rc = bdbuf_test_create_drv_rx_queue(&drvq_id);
if (rc != RTEMS_SUCCESSFUL)
{
printk("%s() Failed to create Msg Queue for RX: %u\n",
__FUNCTION__, rc);
return rc;
}
rc = bdbuf_test_create_drv_tx_queue(&testq_id);
if (rc != RTEMS_SUCCESSFUL)
{
printf("%s() Failed to get Msg Queue for TX: %u\n",
__FUNCTION__, rc);
return rc;
}
printk("TEST DISK - OK\n");
return RTEMS_SUCCESSFUL;
}
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