2 * Copyright (C) 2011 Samsung Electronics Co.Ltd
3 * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
14 #include "exynos_drm.h"
15 #include "exynos_drm_crtc.h"
16 #include "exynos_drm_drv.h"
17 #include "exynos_drm_encoder.h"
20 struct drm_plane base;
21 struct exynos_drm_overlay overlay;
26 exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
27 struct drm_framebuffer *fb, int crtc_x, int crtc_y,
28 unsigned int crtc_w, unsigned int crtc_h,
29 uint32_t src_x, uint32_t src_y,
30 uint32_t src_w, uint32_t src_h)
32 struct exynos_plane *exynos_plane =
33 container_of(plane, struct exynos_plane, base);
34 struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
35 struct exynos_drm_crtc_pos pos;
36 unsigned int x = src_x >> 16;
37 unsigned int y = src_y >> 16;
40 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
42 memset(&pos, 0, sizeof(struct exynos_drm_crtc_pos));
51 /* TODO: scale feature */
52 ret = exynos_drm_overlay_update(overlay, fb, &crtc->mode, &pos);
56 exynos_drm_fn_encoder(crtc, overlay,
57 exynos_drm_encoder_crtc_mode_set);
58 exynos_drm_fn_encoder(crtc, &overlay->zpos,
59 exynos_drm_encoder_crtc_plane_commit);
61 exynos_plane->enabled = true;
66 static int exynos_disable_plane(struct drm_plane *plane)
68 struct exynos_plane *exynos_plane =
69 container_of(plane, struct exynos_plane, base);
70 struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
72 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
74 if (!exynos_plane->enabled)
77 exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
78 exynos_drm_encoder_crtc_disable);
80 exynos_plane->enabled = false;
81 exynos_plane->overlay.zpos = DEFAULT_ZPOS;
86 static void exynos_plane_destroy(struct drm_plane *plane)
88 struct exynos_plane *exynos_plane =
89 container_of(plane, struct exynos_plane, base);
91 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
93 exynos_disable_plane(plane);
94 drm_plane_cleanup(plane);
98 static struct drm_plane_funcs exynos_plane_funcs = {
99 .update_plane = exynos_update_plane,
100 .disable_plane = exynos_disable_plane,
101 .destroy = exynos_plane_destroy,
104 int exynos_plane_init(struct drm_device *dev, unsigned int nr)
106 struct exynos_plane *exynos_plane;
107 uint32_t possible_crtcs;
109 exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
113 /* all CRTCs are available */
114 possible_crtcs = (1 << MAX_CRTC) - 1;
116 exynos_plane->overlay.zpos = DEFAULT_ZPOS;
119 return drm_plane_init(dev, &exynos_plane->base, possible_crtcs,
120 &exynos_plane_funcs, NULL, 0, false);
123 int exynos_plane_set_zpos_ioctl(struct drm_device *dev, void *data,
124 struct drm_file *file_priv)
126 struct drm_exynos_plane_set_zpos *zpos_req = data;
127 struct drm_mode_object *obj;
128 struct drm_plane *plane;
129 struct exynos_plane *exynos_plane;
132 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
134 if (!drm_core_check_feature(dev, DRIVER_MODESET))
137 if (zpos_req->zpos < 0 || zpos_req->zpos >= MAX_PLANE) {
138 if (zpos_req->zpos != DEFAULT_ZPOS) {
139 DRM_ERROR("zpos not within limits\n");
144 mutex_lock(&dev->mode_config.mutex);
146 obj = drm_mode_object_find(dev, zpos_req->plane_id,
147 DRM_MODE_OBJECT_PLANE);
149 DRM_DEBUG_KMS("Unknown plane ID %d\n",
155 plane = obj_to_plane(obj);
156 exynos_plane = container_of(plane, struct exynos_plane, base);
158 exynos_plane->overlay.zpos = zpos_req->zpos;
161 mutex_unlock(&dev->mode_config.mutex);