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/*
* Copyright 2014 Ilia Mirkin
*
* 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 (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 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.
*/
int is_nouveau_vieux(int fd);
#ifdef HAVE_LIBDRM
#include <stdlib.h>
#include <xf86drm.h>
#include <nouveau_drm.h>
static int
nouveau_chipset(int fd)
{
struct drm_nouveau_getparam gp = { NOUVEAU_GETPARAM_CHIPSET_ID, 0 };
int ret;
ret = drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &gp, sizeof(gp));
if (ret)
return -1;
return gp.value;
}
int
is_nouveau_vieux(int fd)
{
int chipset = nouveau_chipset(fd);
return (chipset > 0 && chipset < 0x30) ||
(chipset < 0x40 && getenv("NOUVEAU_VIEUX") != NULL);
}
#else
int is_nouveau_vieux(int fd) { return 0; }
#endif
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