46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*
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* Copyright (c) 2014, 2017 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* sortix/kernel/pci-mmio.h
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* Functions for handling PCI devices.
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*/
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#ifndef _INCLUDE_SORTIX_KERNEL_PCI_MMIO_H
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#define _INCLUDE_SORTIX_KERNEL_PCI_MMIO_H
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#include <sortix/kernel/addralloc.h>
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#include <sortix/kernel/memorymanagement.h>
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#include <sortix/kernel/pci.h>
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namespace Sortix {
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struct paddrmapped_t
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{
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addr_t from;
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addr_t phys;
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size_t size;
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enum page_usage usage;
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};
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bool MapPCIBAR(addralloc_t* allocation, pcibar_t bar, addr_t mtype);
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void UnmapPCIBar(addralloc_t* allocation);
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bool AllocateAndMapPage(paddrmapped_t* ret, enum page_usage usage,
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addr_t mtype = Memory::PAT_WB);
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void FreeAllocatedAndMappedPage(paddrmapped_t* alloc);
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} // namespace Sortix
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#endif
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