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Diffstat (limited to 'src/pciaccess_private.h')
| -rw-r--r-- | src/pciaccess_private.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/pciaccess_private.h b/src/pciaccess_private.h new file mode 100644 index 0000000..fea9c9f --- /dev/null +++ b/src/pciaccess_private.h @@ -0,0 +1,189 @@ +/* + * (C) Copyright IBM Corporation 2006 + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/** + * \file pciaccess_private.h + * Functions and datastructures that are private to the pciaccess library. + * + * \author Ian Romanick <idr@us.ibm.com> + */ + +#if defined(__GNUC__) && (__GNUC__ >= 4) +# define _pci_hidden __attribute__((visibility("hidden"))) +#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) +# define _pci_hidden __hidden +#else /* not gcc >= 4 and not Sun Studio >= 8 */ +# define _pci_hidden +#endif /* GNUC >= 4 */ + +/* + * O_CLOEXEC fixes an fd leak case (see 'man 2 open' for details). I don't + * know of any OS we support where this isn't available in a sufficiently + * new version, so warn unconditionally. + */ +#include <sys/fcntl.h> + +#ifndef O_CLOEXEC +#warning O_CLOEXEC not available, please upgrade. +#define O_CLOEXEC 0 +#endif + + +struct pci_device_mapping; + +int pci_fill_capabilities_generic( struct pci_device * dev ); +int pci_device_generic_unmap_range(struct pci_device *dev, + struct pci_device_mapping *map); + +struct pci_system_methods { + void (*destroy)( void ); + void (*destroy_device)( struct pci_device * dev ); + int (*read_rom)( struct pci_device * dev, void * buffer ); + int (*probe)( struct pci_device * dev ); + int (*map_range)(struct pci_device *dev, struct pci_device_mapping *map); + int (*unmap_range)(struct pci_device * dev, + struct pci_device_mapping *map); + + int (*read)(struct pci_device * dev, void * data, pciaddr_t offset, + pciaddr_t size, pciaddr_t * bytes_read ); + + int (*write)(struct pci_device * dev, const void * data, pciaddr_t offset, + pciaddr_t size, pciaddr_t * bytes_written ); + + int (*fill_capabilities)( struct pci_device * dev ); + void (*enable)( struct pci_device *dev ); + int (*boot_vga)( struct pci_device *dev ); + int (*has_kernel_driver)( struct pci_device *dev ); + struct pci_io_handle *(*open_device_io)( struct pci_io_handle *handle, + struct pci_device *dev, int bar, + pciaddr_t base, pciaddr_t size ); + struct pci_io_handle *(*open_legacy_io)( struct pci_io_handle *handle, + struct pci_device *dev, + pciaddr_t base, pciaddr_t size ); + void (*close_io)( struct pci_device *dev, struct pci_io_handle *handle ); + uint32_t (*read32)( struct pci_io_handle *handle, uint32_t reg ); + uint16_t (*read16)( struct pci_io_handle *handle, uint32_t reg ); + uint8_t (*read8)( struct pci_io_handle *handle, uint32_t reg ); + void (*write32)( struct pci_io_handle *handle, uint32_t reg, + uint32_t data ); + void (*write16)( struct pci_io_handle *handle, uint32_t reg, + uint16_t data ); + void (*write8)( struct pci_io_handle *handle, uint32_t reg, uint8_t data ); + + int (*map_legacy)(struct pci_device *dev, pciaddr_t base, pciaddr_t size, + unsigned map_flags, void **addr); + int (*unmap_legacy)(struct pci_device *dev, void *addr, pciaddr_t size); +}; + +struct pci_device_mapping { + pciaddr_t base; + pciaddr_t size; + unsigned region; + unsigned flags; + void *memory; +}; + +struct pci_io_handle { + pciaddr_t base; + pciaddr_t size; + void *memory; + int fd; +}; + +struct pci_device_private { + struct pci_device base; + const char * device_string; + + uint8_t header_type; + + /** + * \name PCI Capabilities + */ + /*@{*/ + const struct pci_agp_info * agp; /**< AGP capability information. */ + /*@}*/ + + /** + * Base address of the device's expansion ROM. + */ + pciaddr_t rom_base; + + /** + * \name Bridge information. + */ + /*@{*/ + union { + struct pci_bridge_info * pci; + struct pci_pcmcia_bridge_info * pcmcia; + } bridge; + /*@}*/ + + /** + * \name Mappings active on this device. + */ + /*@{*/ + struct pci_device_mapping *mappings; + unsigned num_mappings; + /*@}*/ +}; + + +/** + * Base type for tracking PCI subsystem information. + */ +struct pci_system { + /** + * Platform dependent implementations of specific API routines. + */ + const struct pci_system_methods * methods; + + /** + * Number of known devices in the system. + */ + size_t num_devices; + + /** + * Array of known devices. + */ + struct pci_device_private * devices; + +#ifdef HAVE_MTRR + int mtrr_fd; +#endif + int vgaarb_fd; + int vga_count; + struct pci_device *vga_target; + struct pci_device *vga_default_dev; +}; + +extern struct pci_system * pci_sys; + +extern int pci_system_linux_sysfs_create( void ); +extern int pci_system_freebsd_create( void ); +extern int pci_system_netbsd_create( void ); +extern int pci_system_openbsd_create( void ); +extern void pci_system_openbsd_init_dev_mem( int ); +extern int pci_system_solx_devfs_create( void ); +extern int pci_system_x86_create( void ); +extern void pci_io_cleanup( void ); |