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/*

 * Copyright (c) 2005 Jakub Jermar

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include <print.h>

#include <test.h>

#include <mm/page.h>

#include <mm/frame.h>

#include <mm/as.h>

#include <arch/mm/page.h>

#include <arch/types.h>

#include <debug.h>

#define PAGE0  0x10000000

#define PAGE1  (PAGE0 + PAGE_SIZE)

#define VALUE0  0x01234567

#define VALUE1  0x89abcdef

char *test_mapping1(void)

{

    uintptr_t frame0, frame1;

    uint32_t v0, v1;

    frame0 = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_KA);

    frame1 = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_KA);

    TPRINTF("Writing %#x to physical address %p.\n", VALUE0, KA2PA(frame0));

    *((uint32_t *) frame0) = VALUE0;

    TPRINTF("Writing %#x to physical address %p.\n", VALUE1, KA2PA(frame1));

    *((uint32_t *) frame1) = VALUE1;

    TPRINTF("Mapping virtual address %p to physical address %p.\n", PAGE0, KA2PA(frame0));

    page_mapping_insert(AS_KERNEL, PAGE0, KA2PA(frame0), PAGE_PRESENT | PAGE_WRITE);

    TPRINTF("Mapping virtual address %p to physical address %p.\n", PAGE1, KA2PA(frame1));

    page_mapping_insert(AS_KERNEL, PAGE1, KA2PA(frame1), PAGE_PRESENT | PAGE_WRITE);

    v0 = *((uint32_t *) PAGE0);

    v1 = *((uint32_t *) PAGE1);

    TPRINTF("Value at virtual address %p is %#x.\n", PAGE0, v0);

    TPRINTF("Value at virtual address %p is %#x.\n", PAGE1, v1);

    if (v0 != VALUE0)

        return "Value at v0 not equal to VALUE0";

    if (v1 != VALUE1)

        return "Value at v1 not equal to VALUE1";

    TPRINTF("Writing %#x to virtual address %p.\n", 0, PAGE0);

    *((uint32_t *) PAGE0) = 0;

    TPRINTF("Writing %#x to virtual address %p.\n", 0, PAGE1);

    *((uint32_t *) PAGE1) = 0;

    v0 = *((uint32_t *) PAGE0);

    v1 = *((uint32_t *) PAGE1);

    TPRINTF("Value at virtual address %p is %#x.\n", PAGE0, *((uint32_t *) PAGE0));

    TPRINTF("Value at virtual address %p is %#x.\n", PAGE1, *((uint32_t *) PAGE1));

    if (v0 != 0)

        return "Value at v0 not equal to 0";

    if (v1 != 0)

        return "Value at v1 not equal to 0";

    return NULL;

}