203 lines
6 KiB
C
203 lines
6 KiB
C
/*
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* (C) Copyright IBM Corporation 2006
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file pciaccess_private.h
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* Functions and datastructures that are private to the pciaccess library.
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*
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* \author Ian Romanick <idr@us.ibm.com>
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*/
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#ifndef PCIACCESS_PRIVATE_H
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#define PCIACCESS_PRIVATE_H
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#if defined(__GNUC__) && (__GNUC__ >= 4)
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# define _pci_hidden __attribute__((visibility("hidden")))
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#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
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# define _pci_hidden __hidden
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#else /* not gcc >= 4 and not Sun Studio >= 8 */
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# define _pci_hidden
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#endif /* GNUC >= 4 */
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/*
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* O_CLOEXEC fixes an fd leak case (see 'man 2 open' for details). I don't
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* know of any OS we support where this isn't available in a sufficiently
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* new version, so warn unconditionally.
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*/
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#include <fcntl.h>
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#ifndef O_CLOEXEC
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#warning O_CLOEXEC not available, please upgrade.
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#define O_CLOEXEC 0
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#endif
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struct pci_device_mapping;
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int pci_fill_capabilities_generic( struct pci_device * dev );
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int pci_device_generic_unmap_range(struct pci_device *dev,
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struct pci_device_mapping *map);
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struct pci_system_methods {
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void (*destroy)( void );
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void (*destroy_device)( struct pci_device * dev );
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int (*read_rom)( struct pci_device * dev, void * buffer );
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int (*probe)( struct pci_device * dev );
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int (*map_range)(struct pci_device *dev, struct pci_device_mapping *map);
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int (*unmap_range)(struct pci_device * dev,
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struct pci_device_mapping *map);
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int (*read)(struct pci_device * dev, void * data, pciaddr_t offset,
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pciaddr_t size, pciaddr_t * bytes_read );
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int (*write)(struct pci_device * dev, const void * data, pciaddr_t offset,
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pciaddr_t size, pciaddr_t * bytes_written );
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int (*fill_capabilities)( struct pci_device * dev );
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void (*enable)( struct pci_device *dev );
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void (*disable)( struct pci_device *dev );
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int (*boot_vga)( struct pci_device *dev );
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int (*has_kernel_driver)( struct pci_device *dev );
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struct pci_io_handle *(*open_device_io)( struct pci_io_handle *handle,
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struct pci_device *dev, int bar,
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pciaddr_t base, pciaddr_t size );
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struct pci_io_handle *(*open_legacy_io)( struct pci_io_handle *handle,
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struct pci_device *dev,
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pciaddr_t base, pciaddr_t size );
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void (*close_io)( struct pci_device *dev, struct pci_io_handle *handle );
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uint32_t (*read32)( struct pci_io_handle *handle, uint32_t reg );
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uint16_t (*read16)( struct pci_io_handle *handle, uint32_t reg );
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uint8_t (*read8)( struct pci_io_handle *handle, uint32_t reg );
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void (*write32)( struct pci_io_handle *handle, uint32_t reg,
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uint32_t data );
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void (*write16)( struct pci_io_handle *handle, uint32_t reg,
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uint16_t data );
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void (*write8)( struct pci_io_handle *handle, uint32_t reg, uint8_t data );
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int (*map_legacy)(struct pci_device *dev, pciaddr_t base, pciaddr_t size,
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unsigned map_flags, void **addr);
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int (*unmap_legacy)(struct pci_device *dev, void *addr, pciaddr_t size);
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};
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struct pci_device_mapping {
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pciaddr_t base;
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pciaddr_t size;
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unsigned region;
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unsigned flags;
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void *memory;
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};
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struct pci_io_handle {
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pciaddr_t base;
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pciaddr_t size;
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void *memory;
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int fd;
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int is_legacy;
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};
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struct pci_device_private {
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struct pci_device base;
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const char * device_string;
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uint8_t header_type;
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/**
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* \name PCI Capabilities
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*/
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/*@{*/
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const struct pci_agp_info * agp; /**< AGP capability information. */
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/*@}*/
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/**
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* Base address of the device's expansion ROM.
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*/
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pciaddr_t rom_base;
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/**
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* \name Bridge information.
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*/
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/*@{*/
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union {
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struct pci_bridge_info * pci;
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struct pci_pcmcia_bridge_info * pcmcia;
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} bridge;
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/*@}*/
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/**
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* \name Mappings active on this device.
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*/
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/*@{*/
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struct pci_device_mapping *mappings;
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unsigned num_mappings;
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/*@}*/
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#ifdef __sun
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int is_primary;
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#endif
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#ifdef __GNU__
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unsigned long device_port;
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#endif
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};
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/**
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* Base type for tracking PCI subsystem information.
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*/
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struct pci_system {
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/**
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* Platform dependent implementations of specific API routines.
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*/
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const struct pci_system_methods * methods;
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/**
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* Number of known devices in the system.
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*/
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size_t num_devices;
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/**
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* Array of known devices.
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*/
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struct pci_device_private * devices;
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#ifdef HAVE_MTRR
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int mtrr_fd;
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#endif
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int vgaarb_fd;
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int vga_count;
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struct pci_device *vga_target;
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struct pci_device *vga_default_dev;
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};
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extern struct pci_system * pci_sys;
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extern int pci_system_linux_sysfs_create( void );
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extern int pci_system_freebsd_create( void );
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extern int pci_system_netbsd_create( void );
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extern int pci_system_openbsd_create( void );
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extern void pci_system_openbsd_init_dev_mem( int );
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extern int pci_system_solx_devfs_create( void );
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extern int pci_system_hurd_create( void );
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extern int pci_system_x86_create( void );
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extern void pci_io_cleanup( void );
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#endif /* PCIACCESS_PRIVATE_H */
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