1 /**************************************************************************
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 #define _FILE_OFFSET_BITS 64
39 #include <sys/ioctl.h>
51 dumb_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
55 *out = KMS_BO_TYPE_SCANOUT_X8R8G8B8 | KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
64 dumb_destroy(struct kms_driver *kms)
71 dumb_bo_create(struct kms_driver *kms,
72 const unsigned width, const unsigned height,
73 const enum kms_bo_type type, const unsigned *attr,
76 struct drm_mode_create_dumb arg;
80 for (i = 0; attr[i]; i += 2) {
92 bo = calloc(1, sizeof(*bo));
96 memset(&arg, 0, sizeof(arg));
98 /* All BO_TYPE currently are 32bpp formats */
103 ret = drmIoctl(kms->fd, DRM_IOCTL_MODE_CREATE_DUMB, &arg);
108 bo->base.handle = arg.handle;
109 bo->base.size = arg.size;
110 bo->base.pitch = arg.pitch;
122 dumb_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
131 dumb_bo_map(struct kms_bo *_bo, void **out)
133 struct dumb_bo *bo = (struct dumb_bo *)_bo;
134 struct drm_mode_map_dumb arg;
144 memset(&arg, 0, sizeof(arg));
145 arg.handle = bo->base.handle;
147 ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
151 map = mmap(0, bo->base.size, PROT_READ | PROT_WRITE, MAP_SHARED, bo->base.kms->fd, arg.offset);
152 if (map == MAP_FAILED)
163 dumb_bo_unmap(struct kms_bo *_bo)
165 struct dumb_bo *bo = (struct dumb_bo *)_bo;
171 dumb_bo_destroy(struct kms_bo *_bo)
173 struct dumb_bo *bo = (struct dumb_bo *)_bo;
174 struct drm_mode_destroy_dumb arg;
178 /* XXX Sanity check map_count */
179 munmap(bo->base.ptr, bo->base.size);
183 memset(&arg, 0, sizeof(arg));
184 arg.handle = bo->base.handle;
186 ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &arg);
195 dumb_create(int fd, struct kms_driver **out)
197 struct kms_driver *kms;
201 ret = drmGetCap(fd, DRM_CAP_DUMB_BUFFER, &cap);
205 kms = calloc(1, sizeof(*kms));
211 kms->bo_create = dumb_bo_create;
212 kms->bo_map = dumb_bo_map;
213 kms->bo_unmap = dumb_bo_unmap;
214 kms->bo_get_prop = dumb_bo_get_prop;
215 kms->bo_destroy = dumb_bo_destroy;
216 kms->get_prop = dumb_get_prop;
217 kms->destroy = dumb_destroy;