/*
* 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 kernel_generic_ddi
* @{
*/
/** @file
*/
#ifndef KERN_DDI_H_
#define KERN_DDI_H_
#include <typedefs.h>
#include <abi/ddi/arg.h>
#include <proc/task.h>
#include <adt/odict.h>
/** Structure representing contiguous physical memory area. */
typedef struct parea {
/** Link to @c pareas ordered dictionary */
odlink_t lpareas;
/** Physical base of the area. */
uintptr_t pbase;
/** Number of frames in the area. */
pfn_t frames;
/** Allow mapping by unprivileged tasks. */
bool unpriv;
/** Indicate whether the area is actually mapped. */
bool mapped;
/** Called when @c mapped field has changed */
void (*mapped_changed)(void *);
/** Callback argument */
void *arg;
} parea_t;
extern void ddi_init(void);
extern void ddi_parea_init(parea_t *);
extern void ddi_parea_register(parea_t *);
extern void ddi_parea_unmap_notify(parea_t *);
extern void *pio_map(void *, size_t);
extern void pio_unmap(void *, void *, size_t);
extern sys_errno_t sys_physmem_map(uintptr_t, size_t, unsigned int, uspace_ptr_uintptr_t,
uintptr_t);
extern sys_errno_t sys_physmem_unmap(uintptr_t);
extern sys_errno_t sys_dmamem_map(size_t, unsigned int, unsigned int, uspace_ptr_uintptr_t,
uspace_ptr_uintptr_t, uintptr_t);
extern sys_errno_t sys_dmamem_unmap(uintptr_t, size_t, unsigned int);
extern sys_errno_t sys_iospace_enable(uspace_ptr_ddi_ioarg_t);
extern sys_errno_t sys_iospace_disable(uspace_ptr_ddi_ioarg_t);
/*
* Interface to be implemented by all architectures.
*/
extern errno_t ddi_iospace_enable_arch(task_t *, uintptr_t, size_t);
extern errno_t ddi_iospace_disable_arch(task_t *, uintptr_t, size_t);
#endif
/** @}
*/