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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 <linux/types.h>
28
29struct drm_atomic_state;
30struct drm_crtc;
31struct drm_framebuffer;
32struct drm_modeset_acquire_ctx;
33struct drm_plane;
34
35int drm_plane_helper_update_primary(struct drm_plane *plane, struct drm_crtc *crtc,
36 struct drm_framebuffer *fb,
37 int crtc_x, int crtc_y,
38 unsigned int crtc_w, unsigned int crtc_h,
39 uint32_t src_x, uint32_t src_y,
40 uint32_t src_w, uint32_t src_h,
41 struct drm_modeset_acquire_ctx *ctx);
42int drm_plane_helper_disable_primary(struct drm_plane *plane,
43 struct drm_modeset_acquire_ctx *ctx);
44void drm_plane_helper_destroy(struct drm_plane *plane);
45int drm_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state);
46
47/**
48 * DRM_PLANE_NON_ATOMIC_FUNCS - Default plane functions for non-atomic drivers
49 *
50 * This macro initializes plane functions for non-atomic drivers to default
51 * values. Non-atomic interfaces are deprecated and should not be used in new
52 * drivers.
53 */
54#define DRM_PLANE_NON_ATOMIC_FUNCS \
55 .update_plane = drm_plane_helper_update_primary, \
56 .disable_plane = drm_plane_helper_disable_primary, \
57 .destroy = drm_plane_helper_destroy
58
59#endif
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
41int 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);
46int 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);
58int 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);
65int drm_primary_helper_disable(struct drm_plane *plane);
66void drm_primary_helper_destroy(struct drm_plane *plane);
67extern const struct drm_plane_funcs drm_primary_helper_funcs;
68
69int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
70 struct drm_framebuffer *fb,
71 int crtc_x, int crtc_y,
72 unsigned int crtc_w, unsigned int crtc_h,
73 uint32_t src_x, uint32_t src_y,
74 uint32_t src_w, uint32_t src_h);
75int drm_plane_helper_disable(struct drm_plane *plane);
76
77/* For use by drm_crtc_helper.c */
78int drm_plane_helper_commit(struct drm_plane *plane,
79 struct drm_plane_state *plane_state,
80 struct drm_framebuffer *old_fb);
81#endif