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