/*
* 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 <proc/task.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
/** @}
*/