106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 2008,2009 Free Software Foundation, Inc.
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*
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* VAS_EBOOT 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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* VAS_EBOOT 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 VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VAS_EBOOT_CPU_PCI_H
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#define VAS_EBOOT_CPU_PCI_H 1
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#include <VasEBoot/types.h>
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#include <VasEBoot/i386/io.h>
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#define VAS_EBOOT_MACHINE_PCI_IO_BASE 0
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#define VAS_EBOOT_PCI_ADDR_REG 0xcf8
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#define VAS_EBOOT_PCI_DATA_REG 0xcfc
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#define VAS_EBOOT_PCI_NUM_BUS 256
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#define VAS_EBOOT_PCI_NUM_DEVICES 32
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static inline VasEBoot_uint32_t
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VasEBoot_pci_read (VasEBoot_pci_address_t addr)
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{
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VasEBoot_outl (addr, VAS_EBOOT_PCI_ADDR_REG);
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return VasEBoot_inl (VAS_EBOOT_PCI_DATA_REG);
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}
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static inline VasEBoot_uint16_t
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VasEBoot_pci_read_word (VasEBoot_pci_address_t addr)
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{
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VasEBoot_outl (addr & ~3, VAS_EBOOT_PCI_ADDR_REG);
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return VasEBoot_inw (VAS_EBOOT_PCI_DATA_REG + (addr & 3));
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}
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static inline VasEBoot_uint8_t
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VasEBoot_pci_read_byte (VasEBoot_pci_address_t addr)
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{
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VasEBoot_outl (addr & ~3, VAS_EBOOT_PCI_ADDR_REG);
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return VasEBoot_inb (VAS_EBOOT_PCI_DATA_REG + (addr & 3));
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}
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static inline void
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VasEBoot_pci_write (VasEBoot_pci_address_t addr, VasEBoot_uint32_t data)
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{
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VasEBoot_outl (addr, VAS_EBOOT_PCI_ADDR_REG);
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VasEBoot_outl (data, VAS_EBOOT_PCI_DATA_REG);
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}
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static inline void
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VasEBoot_pci_write_word (VasEBoot_pci_address_t addr, VasEBoot_uint16_t data)
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{
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VasEBoot_outl (addr & ~3, VAS_EBOOT_PCI_ADDR_REG);
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VasEBoot_outw (data, VAS_EBOOT_PCI_DATA_REG + (addr & 3));
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}
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static inline void
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VasEBoot_pci_write_byte (VasEBoot_pci_address_t addr, VasEBoot_uint8_t data)
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{
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VasEBoot_outl (addr & ~3, VAS_EBOOT_PCI_ADDR_REG);
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VasEBoot_outb (data, VAS_EBOOT_PCI_DATA_REG + (addr & 3));
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}
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#ifndef VAS_EBOOT_MACHINE_IEEE1275
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static inline volatile void *
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VasEBoot_pci_device_map_range (VasEBoot_pci_device_t dev __attribute__ ((unused)),
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VasEBoot_addr_t base,
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VasEBoot_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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VasEBoot_pci_device_unmap_range (VasEBoot_pci_device_t dev __attribute__ ((unused)),
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volatile void *mem __attribute__ ((unused)),
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VasEBoot_size_t size __attribute__ ((unused)))
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{
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}
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#else
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volatile void *
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VasEBoot_pci_device_map_range (VasEBoot_pci_device_t dev,
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VasEBoot_addr_t base,
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VasEBoot_size_t size);
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void
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VasEBoot_pci_device_unmap_range (VasEBoot_pci_device_t dev,
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volatile void *mem,
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VasEBoot_size_t size);
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#endif
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#endif /* VAS_EBOOT_CPU_PCI_H */
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