/usr/include/xorg/xf86platformBus.h is in xserver-xorg-dev 2:1.19.6-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright © 2012 Red Hat.
*
* 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Author: Dave Airlie <airlied@redhat.com>
*/
#ifndef XF86_PLATFORM_BUS_H
#define XF86_PLATFORM_BUS_H
#include "hotplug.h"
struct xf86_platform_device {
struct OdevAttributes *attribs;
/* for PCI devices */
struct pci_device *pdev;
int flags;
};
/* xf86_platform_device flags */
#define XF86_PDEV_UNOWNED 0x01
#define XF86_PDEV_SERVER_FD 0x02
#define XF86_PDEV_PAUSED 0x04
#ifdef XSERVER_PLATFORM_BUS
int xf86platformProbe(void);
int xf86platformProbeDev(DriverPtr drvp);
int xf86platformAddGPUDevices(DriverPtr drvp);
void xf86MergeOutputClassOptions(int entityIndex, void **options);
extern int xf86_num_platform_devices;
extern struct xf86_platform_device *xf86_platform_devices;
extern int
xf86_add_platform_device(struct OdevAttributes *attribs, Bool unowned);
extern int
xf86_remove_platform_device(int dev_index);
extern Bool
xf86_get_platform_device_unowned(int index);
extern int
xf86platformAddDevice(int index);
extern void
xf86platformRemoveDevice(int index);
static inline struct OdevAttributes *
xf86_platform_device_odev_attributes(struct xf86_platform_device *device)
{
return device->attribs;
}
static inline struct OdevAttributes *
xf86_platform_odev_attributes(int index)
{
struct xf86_platform_device *device = &xf86_platform_devices[index];
return device->attribs;
}
#ifndef _XORG_CONFIG_H_
/*
* Define the legacy API only for external builds
*/
/* path to kernel device node - Linux e.g. /dev/dri/card0 */
#define ODEV_ATTRIB_PATH 1
/* system device path - Linux e.g. /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card1 */
#define ODEV_ATTRIB_SYSPATH 2
/* DRI-style bus id */
#define ODEV_ATTRIB_BUSID 3
/* Server managed FD */
#define ODEV_ATTRIB_FD 4
/* Major number of the device node pointed to by ODEV_ATTRIB_PATH */
#define ODEV_ATTRIB_MAJOR 5
/* Minor number of the device node pointed to by ODEV_ATTRIB_PATH */
#define ODEV_ATTRIB_MINOR 6
/* kernel driver name */
#define ODEV_ATTRIB_DRIVER 7
/* Protect against a mismatch attribute type by generating a compiler
* error using a negative array size when an incorrect attribute is
* passed
*/
#define _ODEV_ATTRIB_IS_STRING(x) ((x) == ODEV_ATTRIB_PATH || \
(x) == ODEV_ATTRIB_SYSPATH || \
(x) == ODEV_ATTRIB_BUSID || \
(x) == ODEV_ATTRIB_DRIVER)
#define _ODEV_ATTRIB_STRING_CHECK(x) ((int (*)[_ODEV_ATTRIB_IS_STRING(x)-1]) 0)
static inline char *
_xf86_get_platform_device_attrib(struct xf86_platform_device *device, int attrib, int (*fake)[0])
{
switch (attrib) {
case ODEV_ATTRIB_PATH:
return xf86_platform_device_odev_attributes(device)->path;
case ODEV_ATTRIB_SYSPATH:
return xf86_platform_device_odev_attributes(device)->syspath;
case ODEV_ATTRIB_BUSID:
return xf86_platform_device_odev_attributes(device)->busid;
case ODEV_ATTRIB_DRIVER:
return xf86_platform_device_odev_attributes(device)->driver;
default:
assert(FALSE);
return NULL;
}
}
#define xf86_get_platform_device_attrib(device, attrib) _xf86_get_platform_device_attrib(device,attrib,_ODEV_ATTRIB_STRING_CHECK(attrib))
#define _ODEV_ATTRIB_IS_INT(x) ((x) == ODEV_ATTRIB_FD || (x) == ODEV_ATTRIB_MAJOR || (x) == ODEV_ATTRIB_MINOR)
#define _ODEV_ATTRIB_INT_DEFAULT(x) ((x) == ODEV_ATTRIB_FD ? -1 : 0)
#define _ODEV_ATTRIB_DEFAULT_CHECK(x,def) (_ODEV_ATTRIB_INT_DEFAULT(x) == (def))
#define _ODEV_ATTRIB_INT_CHECK(x,def) ((int (*)[_ODEV_ATTRIB_IS_INT(x)*_ODEV_ATTRIB_DEFAULT_CHECK(x,def)-1]) 0)
static inline int
_xf86_get_platform_device_int_attrib(struct xf86_platform_device *device, int attrib, int (*fake)[0])
{
switch (attrib) {
case ODEV_ATTRIB_FD:
return xf86_platform_device_odev_attributes(device)->fd;
case ODEV_ATTRIB_MAJOR:
return xf86_platform_device_odev_attributes(device)->major;
case ODEV_ATTRIB_MINOR:
return xf86_platform_device_odev_attributes(device)->minor;
default:
assert(FALSE);
return 0;
}
}
#define xf86_get_platform_device_int_attrib(device, attrib, def) _xf86_get_platform_device_int_attrib(device,attrib,_ODEV_ATTRIB_INT_CHECK(attrib,def))
#endif
extern _X_EXPORT Bool
xf86PlatformDeviceCheckBusID(struct xf86_platform_device *device, const char *busid);
extern _X_EXPORT int
xf86PlatformMatchDriver(char *matches[], int nmatches);
extern void xf86platformVTProbe(void);
extern void xf86platformPrimary(void);
#else
static inline int xf86platformAddGPUDevices(DriverPtr drvp) { return FALSE; }
static inline void xf86MergeOutputClassOptions(int index, void **options) {}
#endif
#endif
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