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/* $OpenBSD: openbsd_pci.c,v 1.1 2007/06/06 21:01:25 matthieu Exp $ */
/*
* (C) Copyright Eric Anholt 2006
* (C) Copyright IBM Corporation 2006
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/**
* \file openbsd_pci.c
*
* Access the kernel PCI support using /dev/pci's ioctl and mmap interface.
*
* \author Eric Anholt <eric@anholt.net>
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/pciio.h>
#include <sys/mman.h>
#include "pciaccess.h"
#include "pciaccess_private.h"
/**
* OpenBSD private pci_system structure that extends the base pci_system
* structure.
*
* It is initialized once and used as a global, just as pci_system is used.
*/
struct openbsd_pci_system {
struct pci_system pci_sys; /* must come first */
int pcidev; /**< fd for /dev/pci */
} *openbsd_pci_sys;
/**
* Map a memory region for a device using /dev/mem.
*
* \param dev Device whose memory region is to be mapped.
* \param region Region, on the range [0, 5], that is to be mapped.
* \param write_enable Map for writing (non-zero).
*
* \return
* Zero on success or an \c errno value on failure.
*/
static int
pci_device_openbsd_map(struct pci_device *dev, unsigned int region,
int write_enable)
{
}
/**
* Unmap the specified region.
*
* \param dev Device whose memory region is to be unmapped.
* \param region Region, on the range [0, 5], that is to be unmapped.
*
* \return
* Zero on success or an \c errno value on failure.
*/
static int
pci_device_openbsd_unmap(struct pci_device *dev, unsigned int region)
{
}
static int
pci_device_openbsd_read(struct pci_device *dev, void *data,
pciaddr_t offset, pciaddr_t size, pciaddr_t *bytes_read)
{
}
static int
pci_device_openbsd_write(struct pci_device *dev, const void *data,
pciaddr_t offset, pciaddr_t size, pciaddr_t *bytes_written)
{
}
static int
pci_device_openbsd_probe(struct pci_device *dev)
{
}
static int
pci_device_openbsd_read_rom(struct pci_device *dev, void *buffer)
{
}
static void
pci_system_openbsd_destroy(void)
{
free(openbsd_pci_sys->pci_sys.devices);
openbsd_pci_sys = NULL;
}
static const struct pci_system_methods openbsd_pci_methods = {
.destroy = pci_system_openbsd_destroy,
.destroy_device = NULL,
.read_rom = pci_device_openbsd_read_rom,
.probe = pci_device_openbsd_probe,
.map = pci_device_openbsd_map,
.unmap = pci_device_openbsd_unmap,
.read = pci_device_openbsd_read,
.write = pci_device_openbsd_write,
.fill_capabilities = pci_fill_capabilities_generic,
};
/**
* Attempt to acces the OpenBSD PCI interface.
*/
int
pci_system_openbsd_create(void)
{
openbsd_pci_sys = calloc(1, sizeof(struct openbsd_pci_system));
if (openbsd_pci_sys = NULL)
return ENOMEM;
pci_sys = &openbsd_pci_sys->pci_sys;
pci_sys->methods = &openbsd_pci_methods;
return 0;
}
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