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/*
 * Copyright (C) 2006 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.
 */

/** @addtogroup genericddi
 * @{
 */
/** @file
 */

#ifndef KERN_DDI_H_
#define KERN_DDI_H_

#include <ddi/ddi_arg.h>
#include <arch/types.h>
#include <typedefs.h>

/** Structure representing contiguous physical memory area. */
typedef struct {
    uintptr_t pbase;    /**< Physical base of the area. */
    uintptr_t vbase;    /**< Virtual base of the area. */
    count_t frames;     /**< Number of frames in the area. */
    bool cacheable;     /**< Cacheability. */
} parea_t;

extern void ddi_init(void);
extern void ddi_parea_register(parea_t *parea);

extern unative_t sys_physmem_map(unative_t phys_base, unative_t virt_base,
    unative_t pages, unative_t flags);
extern unative_t sys_iospace_enable(ddi_ioarg_t *uspace_io_arg);
extern unative_t sys_preempt_control(int enable);

/*
 * Interface to be implemented by all architectures.
 */
extern int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size);

#endif

/** @}
 */