xref: /OK3568_Linux_fs/external/xserver/include/hotplug.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright © 2006-2007 Daniel Stone
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun  * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun  * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun  * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun  * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun  *
11*4882a593Smuzhiyun  * The above copyright notice and this permission notice (including the next
12*4882a593Smuzhiyun  * paragraph) shall be included in all copies or substantial portions of the
13*4882a593Smuzhiyun  * Software.
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16*4882a593Smuzhiyun  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17*4882a593Smuzhiyun  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18*4882a593Smuzhiyun  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19*4882a593Smuzhiyun  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20*4882a593Smuzhiyun  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21*4882a593Smuzhiyun  * DEALINGS IN THE SOFTWARE.
22*4882a593Smuzhiyun  *
23*4882a593Smuzhiyun  * Author: Daniel Stone <daniel@fooishbar.org>
24*4882a593Smuzhiyun  */
25*4882a593Smuzhiyun 
26*4882a593Smuzhiyun #ifndef HOTPLUG_H
27*4882a593Smuzhiyun #define HOTPLUG_H
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun #include "list.h"
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun extern _X_EXPORT void config_pre_init(void);
32*4882a593Smuzhiyun extern _X_EXPORT void config_init(void);
33*4882a593Smuzhiyun extern _X_EXPORT void config_fini(void);
34*4882a593Smuzhiyun 
35*4882a593Smuzhiyun /* Bump this each time you add something to the struct
36*4882a593Smuzhiyun  * so that drivers can easily tell what is available
37*4882a593Smuzhiyun  */
38*4882a593Smuzhiyun #define ODEV_ATTRIBUTES_VERSION         1
39*4882a593Smuzhiyun 
40*4882a593Smuzhiyun struct OdevAttributes {
41*4882a593Smuzhiyun     /* path to kernel device node - Linux e.g. /dev/dri/card0 */
42*4882a593Smuzhiyun     char        *path;
43*4882a593Smuzhiyun 
44*4882a593Smuzhiyun     /* system device path - Linux e.g. /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card1 */
45*4882a593Smuzhiyun     char        *syspath;
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun     /* DRI-style bus id */
48*4882a593Smuzhiyun     char        *busid;
49*4882a593Smuzhiyun 
50*4882a593Smuzhiyun     /* Server managed FD */
51*4882a593Smuzhiyun     int         fd;
52*4882a593Smuzhiyun 
53*4882a593Smuzhiyun     /* Major number of the device node pointed to by ODEV_ATTRIB_PATH */
54*4882a593Smuzhiyun     int         major;
55*4882a593Smuzhiyun 
56*4882a593Smuzhiyun     /* Minor number of the device node pointed to by ODEV_ATTRIB_PATH */
57*4882a593Smuzhiyun     int         minor;
58*4882a593Smuzhiyun 
59*4882a593Smuzhiyun     /* kernel driver name */
60*4882a593Smuzhiyun     char        *driver;
61*4882a593Smuzhiyun };
62*4882a593Smuzhiyun 
63*4882a593Smuzhiyun /* Note starting with xserver 1.16 this function never fails */
64*4882a593Smuzhiyun struct OdevAttributes *
65*4882a593Smuzhiyun config_odev_allocate_attributes(void);
66*4882a593Smuzhiyun 
67*4882a593Smuzhiyun void
68*4882a593Smuzhiyun config_odev_free_attributes(struct OdevAttributes *attribs);
69*4882a593Smuzhiyun 
70*4882a593Smuzhiyun typedef void (*config_odev_probe_proc_ptr)(struct OdevAttributes *attribs);
71*4882a593Smuzhiyun void config_odev_probe(config_odev_probe_proc_ptr probe_callback);
72*4882a593Smuzhiyun 
73*4882a593Smuzhiyun #ifdef CONFIG_UDEV_KMS
74*4882a593Smuzhiyun void NewGPUDeviceRequest(struct OdevAttributes *attribs);
75*4882a593Smuzhiyun void DeleteGPUDeviceRequest(struct OdevAttributes *attribs);
76*4882a593Smuzhiyun #endif
77*4882a593Smuzhiyun 
78*4882a593Smuzhiyun #define ServerIsNotSeat0() (SeatId && strcmp(SeatId, "seat0"))
79*4882a593Smuzhiyun 
80*4882a593Smuzhiyun struct xf86_platform_device *
81*4882a593Smuzhiyun xf86_find_platform_device_by_devnum(int major, int minor);
82*4882a593Smuzhiyun 
83*4882a593Smuzhiyun #endif                          /* HOTPLUG_H */
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