mirror of
https://git.proxmox.com/git/grub2
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90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008,2009 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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#ifndef GRUB_CPU_PCI_H
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#define GRUB_CPU_PCI_H 1
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#include <grub/types.h>
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#include <grub/i386/io.h>
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#define GRUB_MACHINE_PCI_IO_BASE 0
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#define GRUB_PCI_ADDR_REG 0xcf8
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#define GRUB_PCI_DATA_REG 0xcfc
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#define GRUB_PCI_NUM_BUS 256
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#define GRUB_PCI_NUM_DEVICES 32
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static inline grub_uint32_t
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grub_pci_read (grub_pci_address_t addr)
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{
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grub_outl (addr, GRUB_PCI_ADDR_REG);
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return grub_inl (GRUB_PCI_DATA_REG);
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}
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static inline grub_uint16_t
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grub_pci_read_word (grub_pci_address_t addr)
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{
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grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
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return grub_inw (GRUB_PCI_DATA_REG + (addr & 3));
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}
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static inline grub_uint8_t
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grub_pci_read_byte (grub_pci_address_t addr)
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{
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grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
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return grub_inb (GRUB_PCI_DATA_REG + (addr & 3));
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}
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static inline void
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grub_pci_write (grub_pci_address_t addr, grub_uint32_t data)
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{
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grub_outl (addr, GRUB_PCI_ADDR_REG);
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grub_outl (data, GRUB_PCI_DATA_REG);
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}
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static inline void
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grub_pci_write_word (grub_pci_address_t addr, grub_uint16_t data)
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{
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grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
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grub_outw (data, GRUB_PCI_DATA_REG + (addr & 3));
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}
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static inline void
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grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data)
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{
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grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
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grub_outb (data, GRUB_PCI_DATA_REG + (addr & 3));
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}
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static inline volatile void *
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grub_pci_device_map_range (grub_pci_device_t dev __attribute__ ((unused)),
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grub_addr_t base,
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grub_size_t size __attribute__ ((unused)))
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{
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return (volatile void *) base;
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}
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static inline void
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grub_pci_device_unmap_range (grub_pci_device_t dev __attribute__ ((unused)),
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volatile void *mem __attribute__ ((unused)),
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grub_size_t size __attribute__ ((unused)))
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{
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}
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#endif /* GRUB_CPU_PCI_H */
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