1 /* 2 * (C) Copyright IBM Corporation 2006 3 * All Rights Reserved. 4 * 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: 11 * 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 14 * Software. 15 * 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. 23 */ 24 25 /** 26 * \file pciaccess_private.h 27 * Functions and datastructures that are private to the pciaccess library. 28 * 29 * \author Ian Romanick <idr (at) us.ibm.com> 30 */ 31 32 #ifndef PCIACCESS_PRIVATE_H 33 #define PCIACCESS_PRIVATE_H 34 35 #if defined(__GNUC__) && (__GNUC__ >= 4) 36 # define _pci_hidden __attribute__((visibility("hidden"))) 37 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) 38 # define _pci_hidden __hidden 39 #else /* not gcc >= 4 and not Sun Studio >= 8 */ 40 # define _pci_hidden 41 #endif /* GNUC >= 4 */ 42 43 /* 44 * O_CLOEXEC fixes an fd leak case (see 'man 2 open' for details). I don't 45 * know of any OS we support where this isn't available in a sufficiently 46 * new version, so warn unconditionally. 47 */ 48 #include <fcntl.h> 49 50 #ifndef O_CLOEXEC 51 #warning O_CLOEXEC not available, please upgrade. 52 #define O_CLOEXEC 0 53 #endif 54 55 56 struct pci_device_mapping; 57 58 int pci_fill_capabilities_generic( struct pci_device * dev ); 59 int pci_device_generic_unmap_range(struct pci_device *dev, 60 struct pci_device_mapping *map); 61 62 struct pci_system_methods { 63 void (*destroy)( void ); 64 void (*destroy_device)( struct pci_device * dev ); 65 int (*read_rom)( struct pci_device * dev, void * buffer ); 66 int (*probe)( struct pci_device * dev ); 67 int (*map_range)(struct pci_device *dev, struct pci_device_mapping *map); 68 int (*unmap_range)(struct pci_device * dev, 69 struct pci_device_mapping *map); 70 71 int (*read)(struct pci_device * dev, void * data, pciaddr_t offset, 72 pciaddr_t size, pciaddr_t * bytes_read ); 73 74 int (*write)(struct pci_device * dev, const void * data, pciaddr_t offset, 75 pciaddr_t size, pciaddr_t * bytes_written ); 76 77 int (*fill_capabilities)( struct pci_device * dev ); 78 void (*enable)( struct pci_device *dev ); 79 void (*disable)( struct pci_device *dev ); 80 int (*boot_vga)( struct pci_device *dev ); 81 int (*has_kernel_driver)( struct pci_device *dev ); 82 struct pci_io_handle *(*open_device_io)( struct pci_io_handle *handle, 83 struct pci_device *dev, int bar, 84 pciaddr_t base, pciaddr_t size ); 85 struct pci_io_handle *(*open_legacy_io)( struct pci_io_handle *handle, 86 struct pci_device *dev, 87 pciaddr_t base, pciaddr_t size ); 88 void (*close_io)( struct pci_device *dev, struct pci_io_handle *handle ); 89 uint32_t (*read32)( struct pci_io_handle *handle, uint32_t reg ); 90 uint16_t (*read16)( struct pci_io_handle *handle, uint32_t reg ); 91 uint8_t (*read8)( struct pci_io_handle *handle, uint32_t reg ); 92 void (*write32)( struct pci_io_handle *handle, uint32_t reg, 93 uint32_t data ); 94 void (*write16)( struct pci_io_handle *handle, uint32_t reg, 95 uint16_t data ); 96 void (*write8)( struct pci_io_handle *handle, uint32_t reg, uint8_t data ); 97 98 int (*map_legacy)(struct pci_device *dev, pciaddr_t base, pciaddr_t size, 99 unsigned map_flags, void **addr); 100 int (*unmap_legacy)(struct pci_device *dev, void *addr, pciaddr_t size); 101 }; 102 103 struct pci_device_mapping { 104 pciaddr_t base; 105 pciaddr_t size; 106 unsigned region; 107 unsigned flags; 108 void *memory; 109 }; 110 111 struct pci_io_handle { 112 pciaddr_t base; 113 pciaddr_t size; 114 void *memory; 115 int fd; 116 int is_legacy; 117 }; 118 119 struct pci_device_private { 120 struct pci_device base; 121 const char * device_string; 122 123 uint8_t header_type; 124 125 /** 126 * \name PCI Capabilities 127 */ 128 /*@{*/ 129 const struct pci_agp_info * agp; /**< AGP capability information. */ 130 /*@}*/ 131 132 /** 133 * Base address of the device's expansion ROM. 134 */ 135 pciaddr_t rom_base; 136 137 /** 138 * \name Bridge information. 139 */ 140 /*@{*/ 141 union { 142 struct pci_bridge_info * pci; 143 struct pci_pcmcia_bridge_info * pcmcia; 144 } bridge; 145 /*@}*/ 146 147 /** 148 * \name Mappings active on this device. 149 */ 150 /*@{*/ 151 struct pci_device_mapping *mappings; 152 unsigned num_mappings; 153 /*@}*/ 154 #ifdef __sun 155 int is_primary; 156 #endif 157 #ifdef __GNU__ 158 unsigned long device_port; 159 #endif 160 }; 161 162 163 /** 164 * Base type for tracking PCI subsystem information. 165 */ 166 struct pci_system { 167 /** 168 * Platform dependent implementations of specific API routines. 169 */ 170 const struct pci_system_methods * methods; 171 172 /** 173 * Number of known devices in the system. 174 */ 175 size_t num_devices; 176 177 /** 178 * Array of known devices. 179 */ 180 struct pci_device_private * devices; 181 182 #ifdef HAVE_MTRR 183 int mtrr_fd; 184 #endif 185 int vgaarb_fd; 186 int vga_count; 187 struct pci_device *vga_target; 188 struct pci_device *vga_default_dev; 189 }; 190 191 extern struct pci_system * pci_sys; 192 193 extern int pci_system_linux_sysfs_create( void ); 194 extern int pci_system_freebsd_create( void ); 195 extern int pci_system_netbsd_create( void ); 196 extern int pci_system_openbsd_create( void ); 197 extern void pci_system_openbsd_init_dev_mem( int ); 198 extern int pci_system_solx_devfs_create( void ); 199 extern int pci_system_hurd_create( void ); 200 extern int pci_system_x86_create( void ); 201 extern void pci_io_cleanup( void ); 202 203 #endif /* PCIACCESS_PRIVATE_H */ 204
Indexes created Thu Jul 02 00:25:40 UTC 2026