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1/*
2 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
3 * Author: Rob Clark <rob.clark@linaro.org>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#include <drm/drm_atomic.h>
19#include <drm/drm_atomic_helper.h>
20#include <drm/drm_plane_helper.h>
21
22#include "omap_dmm_tiler.h"
23#include "omap_drv.h"
24
25/*
26 * plane funcs
27 */
28
29#define to_omap_plane(x) container_of(x, struct omap_plane, base)
30
31struct omap_plane {
32 struct drm_plane base;
33 enum omap_plane_id id;
34 const char *name;
35};
36
37static int omap_plane_prepare_fb(struct drm_plane *plane,
38 struct drm_plane_state *new_state)
39{
40 if (!new_state->fb)
41 return 0;
42
43 return omap_framebuffer_pin(new_state->fb);
44}
45
46static void omap_plane_cleanup_fb(struct drm_plane *plane,
47 struct drm_plane_state *old_state)
48{
49 if (old_state->fb)
50 omap_framebuffer_unpin(old_state->fb);
51}
52
53static void omap_plane_atomic_update(struct drm_plane *plane,
54 struct drm_plane_state *old_state)
55{
56 struct omap_drm_private *priv = plane->dev->dev_private;
57 struct omap_plane *omap_plane = to_omap_plane(plane);
58 struct drm_plane_state *state = plane->state;
59 struct omap_overlay_info info;
60 int ret;
61
62 DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
63
64 memset(&info, 0, sizeof(info));
65 info.rotation_type = OMAP_DSS_ROT_NONE;
66 info.rotation = DRM_MODE_ROTATE_0;
67 info.global_alpha = 0xff;
68 info.zorder = state->zpos;
69
70 /* update scanout: */
71 omap_framebuffer_update_scanout(state->fb, state, &info);
72
73 DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
74 info.out_width, info.out_height,
75 info.screen_width);
76 DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
77 &info.paddr, &info.p_uv_addr);
78
79 /* and finally, update omapdss: */
80 ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info,
81 omap_crtc_timings(state->crtc), false,
82 omap_crtc_channel(state->crtc));
83 if (ret) {
84 dev_err(plane->dev->dev, "Failed to setup plane %s\n",
85 omap_plane->name);
86 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
87 return;
88 }
89
90 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true);
91}
92
93static void omap_plane_atomic_disable(struct drm_plane *plane,
94 struct drm_plane_state *old_state)
95{
96 struct omap_drm_private *priv = plane->dev->dev_private;
97 struct omap_plane *omap_plane = to_omap_plane(plane);
98
99 plane->state->rotation = DRM_MODE_ROTATE_0;
100 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
101 ? 0 : omap_plane->id;
102
103 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
104}
105
106static int omap_plane_atomic_check(struct drm_plane *plane,
107 struct drm_plane_state *state)
108{
109 struct drm_crtc_state *crtc_state;
110
111 if (!state->fb)
112 return 0;
113
114 /* crtc should only be NULL when disabling (i.e., !state->fb) */
115 if (WARN_ON(!state->crtc))
116 return 0;
117
118 crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
119 /* we should have a crtc state if the plane is attached to a crtc */
120 if (WARN_ON(!crtc_state))
121 return 0;
122
123 if (!crtc_state->enable)
124 return 0;
125
126 if (state->crtc_x < 0 || state->crtc_y < 0)
127 return -EINVAL;
128
129 if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
130 return -EINVAL;
131
132 if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
133 return -EINVAL;
134
135 if (state->rotation != DRM_MODE_ROTATE_0 &&
136 !omap_framebuffer_supports_rotation(state->fb))
137 return -EINVAL;
138
139 return 0;
140}
141
142static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
143 .prepare_fb = omap_plane_prepare_fb,
144 .cleanup_fb = omap_plane_cleanup_fb,
145 .atomic_check = omap_plane_atomic_check,
146 .atomic_update = omap_plane_atomic_update,
147 .atomic_disable = omap_plane_atomic_disable,
148};
149
150static void omap_plane_destroy(struct drm_plane *plane)
151{
152 struct omap_plane *omap_plane = to_omap_plane(plane);
153
154 DBG("%s", omap_plane->name);
155
156 drm_plane_cleanup(plane);
157
158 kfree(omap_plane);
159}
160
161/* helper to install properties which are common to planes and crtcs */
162void omap_plane_install_properties(struct drm_plane *plane,
163 struct drm_mode_object *obj)
164{
165 struct drm_device *dev = plane->dev;
166 struct omap_drm_private *priv = dev->dev_private;
167
168 if (priv->has_dmm) {
169 if (!plane->rotation_property)
170 drm_plane_create_rotation_property(plane,
171 DRM_MODE_ROTATE_0,
172 DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
173 DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
174 DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
175
176 /* Attach the rotation property also to the crtc object */
177 if (plane->rotation_property && obj != &plane->base)
178 drm_object_attach_property(obj, plane->rotation_property,
179 DRM_MODE_ROTATE_0);
180 }
181
182 drm_object_attach_property(obj, priv->zorder_prop, 0);
183}
184
185static void omap_plane_reset(struct drm_plane *plane)
186{
187 struct omap_plane *omap_plane = to_omap_plane(plane);
188
189 drm_atomic_helper_plane_reset(plane);
190 if (!plane->state)
191 return;
192
193 /*
194 * Set the zpos default depending on whether we are a primary or overlay
195 * plane.
196 */
197 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
198 ? 0 : omap_plane->id;
199}
200
201static int omap_plane_atomic_set_property(struct drm_plane *plane,
202 struct drm_plane_state *state,
203 struct drm_property *property,
204 u64 val)
205{
206 struct omap_drm_private *priv = plane->dev->dev_private;
207
208 if (property == priv->zorder_prop)
209 state->zpos = val;
210 else
211 return -EINVAL;
212
213 return 0;
214}
215
216static int omap_plane_atomic_get_property(struct drm_plane *plane,
217 const struct drm_plane_state *state,
218 struct drm_property *property,
219 u64 *val)
220{
221 struct omap_drm_private *priv = plane->dev->dev_private;
222
223 if (property == priv->zorder_prop)
224 *val = state->zpos;
225 else
226 return -EINVAL;
227
228 return 0;
229}
230
231static const struct drm_plane_funcs omap_plane_funcs = {
232 .update_plane = drm_atomic_helper_update_plane,
233 .disable_plane = drm_atomic_helper_disable_plane,
234 .reset = omap_plane_reset,
235 .destroy = omap_plane_destroy,
236 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
237 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
238 .atomic_set_property = omap_plane_atomic_set_property,
239 .atomic_get_property = omap_plane_atomic_get_property,
240};
241
242static const char *plane_id_to_name[] = {
243 [OMAP_DSS_GFX] = "gfx",
244 [OMAP_DSS_VIDEO1] = "vid1",
245 [OMAP_DSS_VIDEO2] = "vid2",
246 [OMAP_DSS_VIDEO3] = "vid3",
247};
248
249static const enum omap_plane_id plane_idx_to_id[] = {
250 OMAP_DSS_GFX,
251 OMAP_DSS_VIDEO1,
252 OMAP_DSS_VIDEO2,
253 OMAP_DSS_VIDEO3,
254};
255
256/* initialize plane */
257struct drm_plane *omap_plane_init(struct drm_device *dev,
258 int idx, enum drm_plane_type type,
259 u32 possible_crtcs)
260{
261 struct omap_drm_private *priv = dev->dev_private;
262 unsigned int num_planes = priv->dispc_ops->get_num_ovls(priv->dispc);
263 struct drm_plane *plane;
264 struct omap_plane *omap_plane;
265 enum omap_plane_id id;
266 int ret;
267 u32 nformats;
268 const u32 *formats;
269
270 if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
271 return ERR_PTR(-EINVAL);
272
273 id = plane_idx_to_id[idx];
274
275 DBG("%s: type=%d", plane_id_to_name[id], type);
276
277 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
278 if (!omap_plane)
279 return ERR_PTR(-ENOMEM);
280
281 formats = priv->dispc_ops->ovl_get_color_modes(priv->dispc, id);
282 for (nformats = 0; formats[nformats]; ++nformats)
283 ;
284 omap_plane->id = id;
285 omap_plane->name = plane_id_to_name[id];
286
287 plane = &omap_plane->base;
288
289 ret = drm_universal_plane_init(dev, plane, possible_crtcs,
290 &omap_plane_funcs, formats,
291 nformats, NULL, type, NULL);
292 if (ret < 0)
293 goto error;
294
295 drm_plane_helper_add(plane, &omap_plane_helper_funcs);
296
297 omap_plane_install_properties(plane, &plane->base);
298 drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
299
300 return plane;
301
302error:
303 dev_err(dev->dev, "%s(): could not create plane: %s\n",
304 __func__, plane_id_to_name[id]);
305
306 kfree(omap_plane);
307 return NULL;
308}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
4 * Author: Rob Clark <rob.clark@linaro.org>
5 */
6
7#include <drm/drm_atomic.h>
8#include <drm/drm_atomic_helper.h>
9#include <drm/drm_gem_atomic_helper.h>
10#include <drm/drm_plane_helper.h>
11
12#include "omap_dmm_tiler.h"
13#include "omap_drv.h"
14
15/*
16 * plane funcs
17 */
18
19#define to_omap_plane(x) container_of(x, struct omap_plane, base)
20
21struct omap_plane {
22 struct drm_plane base;
23 enum omap_plane_id id;
24 const char *name;
25};
26
27static int omap_plane_prepare_fb(struct drm_plane *plane,
28 struct drm_plane_state *new_state)
29{
30 if (!new_state->fb)
31 return 0;
32
33 drm_gem_plane_helper_prepare_fb(plane, new_state);
34
35 return omap_framebuffer_pin(new_state->fb);
36}
37
38static void omap_plane_cleanup_fb(struct drm_plane *plane,
39 struct drm_plane_state *old_state)
40{
41 if (old_state->fb)
42 omap_framebuffer_unpin(old_state->fb);
43}
44
45static void omap_plane_atomic_update(struct drm_plane *plane,
46 struct drm_atomic_state *state)
47{
48 struct omap_drm_private *priv = plane->dev->dev_private;
49 struct omap_plane *omap_plane = to_omap_plane(plane);
50 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
51 plane);
52 struct omap_overlay_info info;
53 int ret;
54
55 DBG("%s, crtc=%p fb=%p", omap_plane->name, new_state->crtc,
56 new_state->fb);
57
58 memset(&info, 0, sizeof(info));
59 info.rotation_type = OMAP_DSS_ROT_NONE;
60 info.rotation = DRM_MODE_ROTATE_0;
61 info.global_alpha = new_state->alpha >> 8;
62 info.zorder = new_state->normalized_zpos;
63 if (new_state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
64 info.pre_mult_alpha = 1;
65 else
66 info.pre_mult_alpha = 0;
67 info.color_encoding = new_state->color_encoding;
68 info.color_range = new_state->color_range;
69
70 /* update scanout: */
71 omap_framebuffer_update_scanout(new_state->fb, new_state, &info);
72
73 DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
74 info.out_width, info.out_height,
75 info.screen_width);
76 DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
77 &info.paddr, &info.p_uv_addr);
78
79 /* and finally, update omapdss: */
80 ret = dispc_ovl_setup(priv->dispc, omap_plane->id, &info,
81 omap_crtc_timings(new_state->crtc), false,
82 omap_crtc_channel(new_state->crtc));
83 if (ret) {
84 dev_err(plane->dev->dev, "Failed to setup plane %s\n",
85 omap_plane->name);
86 dispc_ovl_enable(priv->dispc, omap_plane->id, false);
87 return;
88 }
89
90 dispc_ovl_enable(priv->dispc, omap_plane->id, true);
91}
92
93static void omap_plane_atomic_disable(struct drm_plane *plane,
94 struct drm_atomic_state *state)
95{
96 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
97 plane);
98 struct omap_drm_private *priv = plane->dev->dev_private;
99 struct omap_plane *omap_plane = to_omap_plane(plane);
100
101 new_state->rotation = DRM_MODE_ROTATE_0;
102 new_state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : omap_plane->id;
103
104 dispc_ovl_enable(priv->dispc, omap_plane->id, false);
105}
106
107static int omap_plane_atomic_check(struct drm_plane *plane,
108 struct drm_atomic_state *state)
109{
110 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
111 plane);
112 struct drm_crtc_state *crtc_state;
113
114 if (!new_plane_state->fb)
115 return 0;
116
117 /* crtc should only be NULL when disabling (i.e., !new_plane_state->fb) */
118 if (WARN_ON(!new_plane_state->crtc))
119 return 0;
120
121 crtc_state = drm_atomic_get_existing_crtc_state(state,
122 new_plane_state->crtc);
123 /* we should have a crtc state if the plane is attached to a crtc */
124 if (WARN_ON(!crtc_state))
125 return 0;
126
127 if (!crtc_state->enable)
128 return 0;
129
130 if (new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0)
131 return -EINVAL;
132
133 if (new_plane_state->crtc_x + new_plane_state->crtc_w > crtc_state->adjusted_mode.hdisplay)
134 return -EINVAL;
135
136 if (new_plane_state->crtc_y + new_plane_state->crtc_h > crtc_state->adjusted_mode.vdisplay)
137 return -EINVAL;
138
139 if (new_plane_state->rotation != DRM_MODE_ROTATE_0 &&
140 !omap_framebuffer_supports_rotation(new_plane_state->fb))
141 return -EINVAL;
142
143 return 0;
144}
145
146static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
147 .prepare_fb = omap_plane_prepare_fb,
148 .cleanup_fb = omap_plane_cleanup_fb,
149 .atomic_check = omap_plane_atomic_check,
150 .atomic_update = omap_plane_atomic_update,
151 .atomic_disable = omap_plane_atomic_disable,
152};
153
154static void omap_plane_destroy(struct drm_plane *plane)
155{
156 struct omap_plane *omap_plane = to_omap_plane(plane);
157
158 DBG("%s", omap_plane->name);
159
160 drm_plane_cleanup(plane);
161
162 kfree(omap_plane);
163}
164
165/* helper to install properties which are common to planes and crtcs */
166void omap_plane_install_properties(struct drm_plane *plane,
167 struct drm_mode_object *obj)
168{
169 struct drm_device *dev = plane->dev;
170 struct omap_drm_private *priv = dev->dev_private;
171
172 if (priv->has_dmm) {
173 if (!plane->rotation_property)
174 drm_plane_create_rotation_property(plane,
175 DRM_MODE_ROTATE_0,
176 DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
177 DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
178 DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
179
180 /* Attach the rotation property also to the crtc object */
181 if (plane->rotation_property && obj != &plane->base)
182 drm_object_attach_property(obj, plane->rotation_property,
183 DRM_MODE_ROTATE_0);
184 }
185
186 drm_object_attach_property(obj, priv->zorder_prop, 0);
187}
188
189static void omap_plane_reset(struct drm_plane *plane)
190{
191 struct omap_plane *omap_plane = to_omap_plane(plane);
192
193 drm_atomic_helper_plane_reset(plane);
194 if (!plane->state)
195 return;
196
197 /*
198 * Set the zpos default depending on whether we are a primary or overlay
199 * plane.
200 */
201 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
202 ? 0 : omap_plane->id;
203 plane->state->color_encoding = DRM_COLOR_YCBCR_BT601;
204 plane->state->color_range = DRM_COLOR_YCBCR_FULL_RANGE;
205}
206
207static int omap_plane_atomic_set_property(struct drm_plane *plane,
208 struct drm_plane_state *state,
209 struct drm_property *property,
210 u64 val)
211{
212 struct omap_drm_private *priv = plane->dev->dev_private;
213
214 if (property == priv->zorder_prop)
215 state->zpos = val;
216 else
217 return -EINVAL;
218
219 return 0;
220}
221
222static int omap_plane_atomic_get_property(struct drm_plane *plane,
223 const struct drm_plane_state *state,
224 struct drm_property *property,
225 u64 *val)
226{
227 struct omap_drm_private *priv = plane->dev->dev_private;
228
229 if (property == priv->zorder_prop)
230 *val = state->zpos;
231 else
232 return -EINVAL;
233
234 return 0;
235}
236
237static const struct drm_plane_funcs omap_plane_funcs = {
238 .update_plane = drm_atomic_helper_update_plane,
239 .disable_plane = drm_atomic_helper_disable_plane,
240 .reset = omap_plane_reset,
241 .destroy = omap_plane_destroy,
242 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
243 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
244 .atomic_set_property = omap_plane_atomic_set_property,
245 .atomic_get_property = omap_plane_atomic_get_property,
246};
247
248static bool omap_plane_supports_yuv(struct drm_plane *plane)
249{
250 struct omap_drm_private *priv = plane->dev->dev_private;
251 struct omap_plane *omap_plane = to_omap_plane(plane);
252 const u32 *formats = dispc_ovl_get_color_modes(priv->dispc, omap_plane->id);
253 u32 i;
254
255 for (i = 0; formats[i]; i++)
256 if (formats[i] == DRM_FORMAT_YUYV ||
257 formats[i] == DRM_FORMAT_UYVY ||
258 formats[i] == DRM_FORMAT_NV12)
259 return true;
260
261 return false;
262}
263
264static const char *plane_id_to_name[] = {
265 [OMAP_DSS_GFX] = "gfx",
266 [OMAP_DSS_VIDEO1] = "vid1",
267 [OMAP_DSS_VIDEO2] = "vid2",
268 [OMAP_DSS_VIDEO3] = "vid3",
269};
270
271static const enum omap_plane_id plane_idx_to_id[] = {
272 OMAP_DSS_GFX,
273 OMAP_DSS_VIDEO1,
274 OMAP_DSS_VIDEO2,
275 OMAP_DSS_VIDEO3,
276};
277
278/* initialize plane */
279struct drm_plane *omap_plane_init(struct drm_device *dev,
280 int idx, enum drm_plane_type type,
281 u32 possible_crtcs)
282{
283 struct omap_drm_private *priv = dev->dev_private;
284 unsigned int num_planes = dispc_get_num_ovls(priv->dispc);
285 struct drm_plane *plane;
286 struct omap_plane *omap_plane;
287 enum omap_plane_id id;
288 int ret;
289 u32 nformats;
290 const u32 *formats;
291
292 if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
293 return ERR_PTR(-EINVAL);
294
295 id = plane_idx_to_id[idx];
296
297 DBG("%s: type=%d", plane_id_to_name[id], type);
298
299 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
300 if (!omap_plane)
301 return ERR_PTR(-ENOMEM);
302
303 formats = dispc_ovl_get_color_modes(priv->dispc, id);
304 for (nformats = 0; formats[nformats]; ++nformats)
305 ;
306 omap_plane->id = id;
307 omap_plane->name = plane_id_to_name[id];
308
309 plane = &omap_plane->base;
310
311 ret = drm_universal_plane_init(dev, plane, possible_crtcs,
312 &omap_plane_funcs, formats,
313 nformats, NULL, type, NULL);
314 if (ret < 0)
315 goto error;
316
317 drm_plane_helper_add(plane, &omap_plane_helper_funcs);
318
319 omap_plane_install_properties(plane, &plane->base);
320 drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
321 drm_plane_create_alpha_property(plane);
322 drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI) |
323 BIT(DRM_MODE_BLEND_COVERAGE));
324
325 if (omap_plane_supports_yuv(plane))
326 drm_plane_create_color_properties(plane,
327 BIT(DRM_COLOR_YCBCR_BT601) |
328 BIT(DRM_COLOR_YCBCR_BT709),
329 BIT(DRM_COLOR_YCBCR_FULL_RANGE) |
330 BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
331 DRM_COLOR_YCBCR_BT601,
332 DRM_COLOR_YCBCR_FULL_RANGE);
333
334 return plane;
335
336error:
337 dev_err(dev->dev, "%s(): could not create plane: %s\n",
338 __func__, plane_id_to_name[id]);
339
340 kfree(omap_plane);
341 return NULL;
342}