78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
/* pci.c - Generic PCI interfaces. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/pci.h>
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#include <grub/dl.h>
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#include <grub/emu/misc.h>
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#include <grub/util/misc.h>
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grub_pci_address_t
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grub_pci_make_address (grub_pci_device_t dev, int reg)
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{
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grub_pci_address_t ret;
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ret.dev = dev;
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ret.pos = reg;
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return ret;
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}
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void
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grub_pci_iterate (grub_pci_iteratefunc_t hook)
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{
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struct pci_device_iterator *iter;
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struct pci_slot_match slot;
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struct pci_device *dev;
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slot.domain = PCI_MATCH_ANY;
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slot.bus = PCI_MATCH_ANY;
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slot.dev = PCI_MATCH_ANY;
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slot.func = PCI_MATCH_ANY;
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iter = pci_slot_match_iterator_create (&slot);
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while ((dev = pci_device_next (iter)))
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hook (dev, dev->vendor_id | (dev->device_id << 16));
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pci_iterator_destroy (iter);
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}
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void *
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grub_pci_device_map_range (grub_pci_device_t dev, grub_addr_t base,
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grub_size_t size)
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{
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void *addr;
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int err;
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err = pci_device_map_range (dev, base, size, PCI_DEV_MAP_FLAG_WRITABLE, &addr);
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if (err)
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grub_util_error ("mapping 0x%x failed (error %d)\n", base, err);
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return addr;
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}
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void
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grub_pci_device_unmap_range (grub_pci_device_t dev, void *mem,
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grub_size_t size)
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{
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pci_device_unmap_range (dev, mem, size);
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}
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GRUB_MOD_INIT (pci)
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{
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pci_system_init ();
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}
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GRUB_MOD_FINI (pci)
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{
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pci_system_cleanup ();
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}
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