pci_id_driver_map.c revision 848b8605 
1/*
2 * Copyright 2014 Ilia Mirkin
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24int is_nouveau_vieux(int fd);
25
26#ifndef __NOT_HAVE_DRM_H
27
28#include <xf86drm.h>
29#include <nouveau_drm.h>
30
31static int
32nouveau_chipset(int fd)
33{
34   struct drm_nouveau_getparam gp = { NOUVEAU_GETPARAM_CHIPSET_ID, 0 };
35   int ret;
36
37   ret = drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &gp, sizeof(gp));
38   if (ret)
39      return -1;
40
41   return gp.value;
42}
43
44int
45is_nouveau_vieux(int fd)
46{
47   int chipset = nouveau_chipset(fd);
48   return chipset > 0 && chipset < 0x30;
49}
50
51#else
52
53int is_nouveau_vieux(int fd) { return 0; }
54
55#endif
56