1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
4 * Author: Rob Clark <rob.clark@linaro.org>
7 #include <drm/drm_atomic.h>
8 #include <drm/drm_atomic_helper.h>
9 #include <drm/drm_plane_helper.h>
11 #include "omap_dmm_tiler.h"
18 #define to_omap_plane(x) container_of(x, struct omap_plane, base)
21 struct drm_plane base;
22 enum omap_plane_id id;
26 static int omap_plane_prepare_fb(struct drm_plane *plane,
27 struct drm_plane_state *new_state)
32 return omap_framebuffer_pin(new_state->fb);
35 static void omap_plane_cleanup_fb(struct drm_plane *plane,
36 struct drm_plane_state *old_state)
39 omap_framebuffer_unpin(old_state->fb);
42 static void omap_plane_atomic_update(struct drm_plane *plane,
43 struct drm_plane_state *old_state)
45 struct omap_drm_private *priv = plane->dev->dev_private;
46 struct omap_plane *omap_plane = to_omap_plane(plane);
47 struct drm_plane_state *state = plane->state;
48 struct omap_overlay_info info;
51 DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
53 memset(&info, 0, sizeof(info));
54 info.rotation_type = OMAP_DSS_ROT_NONE;
55 info.rotation = DRM_MODE_ROTATE_0;
56 info.global_alpha = 0xff;
57 info.zorder = state->normalized_zpos;
60 omap_framebuffer_update_scanout(state->fb, state, &info);
62 DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
63 info.out_width, info.out_height,
65 DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
66 &info.paddr, &info.p_uv_addr);
68 /* and finally, update omapdss: */
69 ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info,
70 omap_crtc_timings(state->crtc), false,
71 omap_crtc_channel(state->crtc));
73 dev_err(plane->dev->dev, "Failed to setup plane %s\n",
75 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
79 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true);
82 static void omap_plane_atomic_disable(struct drm_plane *plane,
83 struct drm_plane_state *old_state)
85 struct omap_drm_private *priv = plane->dev->dev_private;
86 struct omap_plane *omap_plane = to_omap_plane(plane);
88 plane->state->rotation = DRM_MODE_ROTATE_0;
89 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
92 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
95 static int omap_plane_atomic_check(struct drm_plane *plane,
96 struct drm_plane_state *state)
98 struct drm_crtc_state *crtc_state;
103 /* crtc should only be NULL when disabling (i.e., !state->fb) */
104 if (WARN_ON(!state->crtc))
107 crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
108 /* we should have a crtc state if the plane is attached to a crtc */
109 if (WARN_ON(!crtc_state))
112 if (!crtc_state->enable)
115 if (state->crtc_x < 0 || state->crtc_y < 0)
118 if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
121 if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
124 if (state->rotation != DRM_MODE_ROTATE_0 &&
125 !omap_framebuffer_supports_rotation(state->fb))
131 static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
132 .prepare_fb = omap_plane_prepare_fb,
133 .cleanup_fb = omap_plane_cleanup_fb,
134 .atomic_check = omap_plane_atomic_check,
135 .atomic_update = omap_plane_atomic_update,
136 .atomic_disable = omap_plane_atomic_disable,
139 static void omap_plane_destroy(struct drm_plane *plane)
141 struct omap_plane *omap_plane = to_omap_plane(plane);
143 DBG("%s", omap_plane->name);
145 drm_plane_cleanup(plane);
150 /* helper to install properties which are common to planes and crtcs */
151 void omap_plane_install_properties(struct drm_plane *plane,
152 struct drm_mode_object *obj)
154 struct drm_device *dev = plane->dev;
155 struct omap_drm_private *priv = dev->dev_private;
158 if (!plane->rotation_property)
159 drm_plane_create_rotation_property(plane,
161 DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
162 DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
163 DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
165 /* Attach the rotation property also to the crtc object */
166 if (plane->rotation_property && obj != &plane->base)
167 drm_object_attach_property(obj, plane->rotation_property,
171 drm_object_attach_property(obj, priv->zorder_prop, 0);
174 static void omap_plane_reset(struct drm_plane *plane)
176 struct omap_plane *omap_plane = to_omap_plane(plane);
178 drm_atomic_helper_plane_reset(plane);
183 * Set the zpos default depending on whether we are a primary or overlay
186 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
187 ? 0 : omap_plane->id;
190 static int omap_plane_atomic_set_property(struct drm_plane *plane,
191 struct drm_plane_state *state,
192 struct drm_property *property,
195 struct omap_drm_private *priv = plane->dev->dev_private;
197 if (property == priv->zorder_prop)
205 static int omap_plane_atomic_get_property(struct drm_plane *plane,
206 const struct drm_plane_state *state,
207 struct drm_property *property,
210 struct omap_drm_private *priv = plane->dev->dev_private;
212 if (property == priv->zorder_prop)
220 static const struct drm_plane_funcs omap_plane_funcs = {
221 .update_plane = drm_atomic_helper_update_plane,
222 .disable_plane = drm_atomic_helper_disable_plane,
223 .reset = omap_plane_reset,
224 .destroy = omap_plane_destroy,
225 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
226 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
227 .atomic_set_property = omap_plane_atomic_set_property,
228 .atomic_get_property = omap_plane_atomic_get_property,
231 static const char *plane_id_to_name[] = {
232 [OMAP_DSS_GFX] = "gfx",
233 [OMAP_DSS_VIDEO1] = "vid1",
234 [OMAP_DSS_VIDEO2] = "vid2",
235 [OMAP_DSS_VIDEO3] = "vid3",
238 static const enum omap_plane_id plane_idx_to_id[] = {
245 /* initialize plane */
246 struct drm_plane *omap_plane_init(struct drm_device *dev,
247 int idx, enum drm_plane_type type,
250 struct omap_drm_private *priv = dev->dev_private;
251 unsigned int num_planes = priv->dispc_ops->get_num_ovls(priv->dispc);
252 struct drm_plane *plane;
253 struct omap_plane *omap_plane;
254 enum omap_plane_id id;
259 if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
260 return ERR_PTR(-EINVAL);
262 id = plane_idx_to_id[idx];
264 DBG("%s: type=%d", plane_id_to_name[id], type);
266 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
268 return ERR_PTR(-ENOMEM);
270 formats = priv->dispc_ops->ovl_get_color_modes(priv->dispc, id);
271 for (nformats = 0; formats[nformats]; ++nformats)
274 omap_plane->name = plane_id_to_name[id];
276 plane = &omap_plane->base;
278 ret = drm_universal_plane_init(dev, plane, possible_crtcs,
279 &omap_plane_funcs, formats,
280 nformats, NULL, type, NULL);
284 drm_plane_helper_add(plane, &omap_plane_helper_funcs);
286 omap_plane_install_properties(plane, &plane->base);
287 drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
292 dev_err(dev->dev, "%s(): could not create plane: %s\n",
293 __func__, plane_id_to_name[id]);