2 * (C) Copyright IBM Corporation 2006
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
26 * \file pciaccess_private.h
27 * Functions and datastructures that are private to the pciaccess library.
29 * \author Ian Romanick <idr@us.ibm.com>
32 #if defined(__GNUC__) && (__GNUC__ >= 4)
33 # define _pci_hidden __attribute__((visibility("hidden")))
34 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
35 # define _pci_hidden __hidden
36 #else /* not gcc >= 4 and not Sun Studio >= 8 */
38 #endif /* GNUC >= 4 */
41 * O_CLOEXEC fixes an fd leak case (see 'man 2 open' for details). I don't
42 * know of any OS we support where this isn't available in a sufficiently
43 * new version, so warn unconditionally.
45 #include <sys/fcntl.h>
48 #warning O_CLOEXEC not available, please upgrade.
53 struct pci_device_mapping;
55 int pci_fill_capabilities_generic( struct pci_device * dev );
56 int pci_device_generic_unmap_range(struct pci_device *dev,
57 struct pci_device_mapping *map);
59 struct pci_system_methods {
60 void (*destroy)( void );
61 void (*destroy_device)( struct pci_device * dev );
62 int (*read_rom)( struct pci_device * dev, void * buffer );
63 int (*probe)( struct pci_device * dev );
64 int (*map_range)(struct pci_device *dev, struct pci_device_mapping *map);
65 int (*unmap_range)(struct pci_device * dev,
66 struct pci_device_mapping *map);
68 int (*read)(struct pci_device * dev, void * data, pciaddr_t offset,
69 pciaddr_t size, pciaddr_t * bytes_read );
71 int (*write)(struct pci_device * dev, const void * data, pciaddr_t offset,
72 pciaddr_t size, pciaddr_t * bytes_written );
74 int (*fill_capabilities)( struct pci_device * dev );
75 void (*enable)( struct pci_device *dev );
76 int (*boot_vga)( struct pci_device *dev );
77 int (*has_kernel_driver)( struct pci_device *dev );
78 struct pci_io_handle *(*open_device_io)( struct pci_io_handle *handle,
79 struct pci_device *dev, int bar,
80 pciaddr_t base, pciaddr_t size );
81 struct pci_io_handle *(*open_legacy_io)( struct pci_io_handle *handle,
82 struct pci_device *dev,
83 pciaddr_t base, pciaddr_t size );
84 void (*close_io)( struct pci_device *dev, struct pci_io_handle *handle );
85 uint32_t (*read32)( struct pci_io_handle *handle, uint32_t reg );
86 uint16_t (*read16)( struct pci_io_handle *handle, uint32_t reg );
87 uint8_t (*read8)( struct pci_io_handle *handle, uint32_t reg );
88 void (*write32)( struct pci_io_handle *handle, uint32_t reg,
90 void (*write16)( struct pci_io_handle *handle, uint32_t reg,
92 void (*write8)( struct pci_io_handle *handle, uint32_t reg, uint8_t data );
94 int (*map_legacy)(struct pci_device *dev, pciaddr_t base, pciaddr_t size,
95 unsigned map_flags, void **addr);
96 int (*unmap_legacy)(struct pci_device *dev, void *addr, pciaddr_t size);
99 struct pci_device_mapping {
107 struct pci_io_handle {
115 struct pci_device_private {
116 struct pci_device base;
117 const char * device_string;
122 * \name PCI Capabilities
125 const struct pci_agp_info * agp; /**< AGP capability information. */
129 * Base address of the device's expansion ROM.
134 * \name Bridge information.
138 struct pci_bridge_info * pci;
139 struct pci_pcmcia_bridge_info * pcmcia;
144 * \name Mappings active on this device.
147 struct pci_device_mapping *mappings;
148 unsigned num_mappings;
157 * Base type for tracking PCI subsystem information.
161 * Platform dependent implementations of specific API routines.
163 const struct pci_system_methods * methods;
166 * Number of known devices in the system.
171 * Array of known devices.
173 struct pci_device_private * devices;
180 struct pci_device *vga_target;
181 struct pci_device *vga_default_dev;
184 extern struct pci_system * pci_sys;
186 extern int pci_system_linux_sysfs_create( void );
187 extern int pci_system_freebsd_create( void );
188 extern int pci_system_netbsd_create( void );
189 extern int pci_system_openbsd_create( void );
190 extern void pci_system_openbsd_init_dev_mem( int );
191 extern int pci_system_solx_devfs_create( void );
192 extern int pci_system_x86_create( void );
193 extern void pci_io_cleanup( void );