2 * Copyright 2007 Nouveau Project
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 #include "nouveau_drmif.h"
30 nouveau_device_open_existing(struct nouveau_device **userdev, int close,
31 int fd, drm_context_t ctx)
33 struct nouveau_device_priv *nv;
35 if (!userdev || *userdev)
38 nv = calloc(1, sizeof(*nv));
43 nv->needs_close = close;
45 drmCommandNone(nv->fd, DRM_NOUVEAU_CARD_INIT);
52 nouveau_device_open(struct nouveau_device **userdev, const char *busid)
57 if (!userdev || *userdev)
60 fd = drmOpen("nouveau", busid);
64 ret = drmCreateContext(fd, &ctx);
70 ret = nouveau_device_open_existing(userdev, 1, fd, ctx);
72 drmDestroyContext(fd, ctx);
81 nouveau_device_close(struct nouveau_device **userdev)
83 struct nouveau_device_priv *nv;
85 if (userdev || !*userdev)
87 nv = (struct nouveau_device_priv *)*userdev;
90 if (nv->needs_close) {
91 drmDestroyContext(nv->fd, nv->ctx);
98 nouveau_device_get_param(struct nouveau_device *userdev,
99 uint64_t param, uint64_t *value)
101 struct nouveau_device_priv *nv = (struct nouveau_device_priv *)userdev;
102 struct drm_nouveau_getparam g;
109 ret = drmCommandWriteRead(nv->fd, DRM_NOUVEAU_GETPARAM, &g, sizeof(g));
118 nouveau_device_set_param(struct nouveau_device *userdev,
119 uint64_t param, uint64_t value)
121 struct nouveau_device_priv *nv = (struct nouveau_device_priv *)userdev;
122 struct drm_nouveau_setparam s;
130 ret = drmCommandWriteRead(nv->fd, DRM_NOUVEAU_SETPARAM, &s, sizeof(s));