Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target...
[sfrench/cifs-2.6.git] / include / drm / drm_plane_helper.h
1 /*
2  * Copyright (C) 2011-2013 Intel Corporation
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
24 #ifndef DRM_PLANE_HELPER_H
25 #define DRM_PLANE_HELPER_H
26
27 #include <drm/drm_rect.h>
28 #include <drm/drm_crtc.h>
29 #include <drm/drm_modeset_helper_vtables.h>
30 #include <drm/drm_modeset_helper.h>
31
32 /*
33  * Drivers that don't allow primary plane scaling may pass this macro in place
34  * of the min/max scale parameters of the update checker function.
35  *
36  * Due to src being in 16.16 fixed point and dest being in integer pixels,
37  * 1<<16 represents no scaling.
38  */
39 #define DRM_PLANE_HELPER_NO_SCALING (1<<16)
40
41 int drm_plane_helper_check_state(struct drm_plane_state *state,
42                                  const struct drm_rect *clip,
43                                  int min_scale, int max_scale,
44                                  bool can_position,
45                                  bool can_update_disabled);
46 int drm_plane_helper_check_update(struct drm_plane *plane,
47                                   struct drm_crtc *crtc,
48                                   struct drm_framebuffer *fb,
49                                   struct drm_rect *src,
50                                   struct drm_rect *dest,
51                                   const struct drm_rect *clip,
52                                   unsigned int rotation,
53                                   int min_scale,
54                                   int max_scale,
55                                   bool can_position,
56                                   bool can_update_disabled,
57                                   bool *visible);
58 int drm_primary_helper_update(struct drm_plane *plane,
59                               struct drm_crtc *crtc,
60                               struct drm_framebuffer *fb,
61                               int crtc_x, int crtc_y,
62                               unsigned int crtc_w, unsigned int crtc_h,
63                               uint32_t src_x, uint32_t src_y,
64                               uint32_t src_w, uint32_t src_h,
65                               struct drm_modeset_acquire_ctx *ctx);
66 int drm_primary_helper_disable(struct drm_plane *plane,
67                                struct drm_modeset_acquire_ctx *ctx);
68 void drm_primary_helper_destroy(struct drm_plane *plane);
69 extern const struct drm_plane_funcs drm_primary_helper_funcs;
70
71 int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
72                             struct drm_framebuffer *fb,
73                             int crtc_x, int crtc_y,
74                             unsigned int crtc_w, unsigned int crtc_h,
75                             uint32_t src_x, uint32_t src_y,
76                             uint32_t src_w, uint32_t src_h);
77 int drm_plane_helper_disable(struct drm_plane *plane);
78
79 /* For use by drm_crtc_helper.c */
80 int drm_plane_helper_commit(struct drm_plane *plane,
81                             struct drm_plane_state *plane_state,
82                             struct drm_framebuffer *old_fb);
83 #endif