/*! @file
 * @brief Check the behaviour of rtems_bdbuf_read() function 
 * with different reports from disk device driver.
 *
 * Test sequence:
 * -# Call rtems_bdbuf_read() function and return 0 from disk device 
 *    driver ioctl() function, and the result of asynchronous read
 *    complete notification is successful.
 * -# Check that rtems_bdbuf_read() returns RTEMS_SUCCESSFUL and
 *    provides buffer descriptor.
 * -# Call rtems_bdbuf_read() function and return -1 from disk device
 *    driver ioctl() function (there will be no asynchronous read 
 *    complete notification).
 * -# Check that rtems_bdbuf_read() returns RTEMS_IO_ERROR.
 * -# Call rtems_bdbuf_read() function and return 0 from disk device
 *    driver ioctl() function, but the result of asynchronous read 
 *    complete notification is faulty (with some erroneous status).
 * -# Check that rtems_bdbuf_read() returns that status and does not
 *    return buffer descriptor.
 *
 * 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.
 */

#include <bdbuf_tests.h>

static rtems_task bdbuf_test1_1_thread1(rtems_task_argument arg);

#define TEST_BLK_NUM 10

void
bdbuf_test1_1_main()
{
    bdbuf_test_msg msg;

    TEST_START("Test 1.1");

    /*
     * Create working thread that will call rtems_bdbuf_read() function.
     */
    START_THREAD(1, bdbuf_test1_1_thread1);
    
    /*
     * Step 1:
     * Check that rtems_bdbuf_read() returns RTEMS_SUCCESSFUL
     * when device driver returns 0 from ioctl() call and
     * return RTEMS_SUCCESSFUL status in asynchronous
     * callback notification.
     */
    WAIT_DRV_MSG(&msg);
    SEND_DRV_MSG(0, 0, RTEMS_SUCCESSFUL, 0);

    WAIT_THREAD_SYNC(1);
    TEST_CHECK_RESULT("2");

    CONTINUE_THREAD(1);

    /*
     * Step 3:
     * Check that rtems_bdbuf_read() returns RTEMS_IO_ERROR
     * return code, when device driver returns -1 from ioctl() call.
     */
    WAIT_DRV_MSG(&msg);
    SEND_DRV_MSG(-1, EFAULT, RTEMS_SUCCESSFUL, 0);

    WAIT_THREAD_SYNC(1);
    TEST_CHECK_RESULT("4");

    CONTINUE_THREAD(1);

    /*
     * Step 5:
     * Check that rtems_bdbuf_read() returns status obtained
     * from device driver via asynchonous notification.
     * On this step device driver returns 0 from ioctl() call,
     * but notification callback is called with RTEMS_IO_ERROR status.
     */
    WAIT_DRV_MSG(&msg);
    SEND_DRV_MSG(0, 0, RTEMS_IO_ERROR, EFAULT);

    WAIT_THREAD_SYNC(1);
    TEST_CHECK_RESULT("6");

    CONTINUE_THREAD(1);

    TEST_END();
}


static rtems_task
bdbuf_test1_1_thread1(rtems_task_argument arg)
{
    rtems_status_code   rc;
    rtems_bdbuf_buffer *bd1 = NULL;
    rtems_bdbuf_buffer *bd2 = NULL;

    /*
     * Step 1-2:
     * Successful read operation.
     */
    rc = rtems_bdbuf_read(test_dev, 0, &bd1);
    if (rc != RTEMS_SUCCESSFUL)
    {
        TEST_FAILED();
    }
    rc = rtems_bdbuf_release(bd1);
    if (rc != RTEMS_SUCCESSFUL)
    {
        TEST_FAILED();
    }

    CONTINUE_MAIN(1);

    /*
     * Step 3-4:
     * Read operation fails with RTEMS_IO_ERROR code.
     * The function shall not update user pointer.
     */
    rc = rtems_bdbuf_read(test_dev, TEST_BLK_NUM, &bd2);
    if (rc != RTEMS_IO_ERROR || bd2 != NULL)
    {
        TEST_FAILED();
    }

    CONTINUE_MAIN(1);

    /*
     * Step 5-6:
     * Read operation fails with RTEMS_IO_ERROR code.
     * The function shall not update user pointer.
     */
    rc = rtems_bdbuf_read(test_dev, TEST_BLK_NUM, &bd2);
    if (rc != RTEMS_IO_ERROR || bd2 != NULL)
    {
        TEST_FAILED();
    }

    CONTINUE_MAIN(1);

    THREAD_END();
}