Loading...
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2011 Texas Instruments Incorporated - http://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_plane_helper.h>
10
11#include "omap_dmm_tiler.h"
12#include "omap_drv.h"
13
14/*
15 * plane funcs
16 */
17
18#define to_omap_plane(x) container_of(x, struct omap_plane, base)
19
20struct omap_plane {
21 struct drm_plane base;
22 enum omap_plane_id id;
23 const char *name;
24};
25
26static int omap_plane_prepare_fb(struct drm_plane *plane,
27 struct drm_plane_state *new_state)
28{
29 if (!new_state->fb)
30 return 0;
31
32 return omap_framebuffer_pin(new_state->fb);
33}
34
35static void omap_plane_cleanup_fb(struct drm_plane *plane,
36 struct drm_plane_state *old_state)
37{
38 if (old_state->fb)
39 omap_framebuffer_unpin(old_state->fb);
40}
41
42static void omap_plane_atomic_update(struct drm_plane *plane,
43 struct drm_plane_state *old_state)
44{
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;
49 int ret;
50
51 DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
52
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 = state->alpha >> 8;
57 info.zorder = state->normalized_zpos;
58 if (state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
59 info.pre_mult_alpha = 1;
60 else
61 info.pre_mult_alpha = 0;
62
63 /* update scanout: */
64 omap_framebuffer_update_scanout(state->fb, state, &info);
65
66 DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
67 info.out_width, info.out_height,
68 info.screen_width);
69 DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
70 &info.paddr, &info.p_uv_addr);
71
72 /* and finally, update omapdss: */
73 ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info,
74 omap_crtc_timings(state->crtc), false,
75 omap_crtc_channel(state->crtc));
76 if (ret) {
77 dev_err(plane->dev->dev, "Failed to setup plane %s\n",
78 omap_plane->name);
79 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
80 return;
81 }
82
83 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true);
84}
85
86static void omap_plane_atomic_disable(struct drm_plane *plane,
87 struct drm_plane_state *old_state)
88{
89 struct omap_drm_private *priv = plane->dev->dev_private;
90 struct omap_plane *omap_plane = to_omap_plane(plane);
91
92 plane->state->rotation = DRM_MODE_ROTATE_0;
93 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
94 ? 0 : omap_plane->id;
95
96 priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
97}
98
99static int omap_plane_atomic_check(struct drm_plane *plane,
100 struct drm_plane_state *state)
101{
102 struct drm_crtc_state *crtc_state;
103
104 if (!state->fb)
105 return 0;
106
107 /* crtc should only be NULL when disabling (i.e., !state->fb) */
108 if (WARN_ON(!state->crtc))
109 return 0;
110
111 crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
112 /* we should have a crtc state if the plane is attached to a crtc */
113 if (WARN_ON(!crtc_state))
114 return 0;
115
116 if (!crtc_state->enable)
117 return 0;
118
119 if (state->crtc_x < 0 || state->crtc_y < 0)
120 return -EINVAL;
121
122 if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
123 return -EINVAL;
124
125 if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
126 return -EINVAL;
127
128 if (state->rotation != DRM_MODE_ROTATE_0 &&
129 !omap_framebuffer_supports_rotation(state->fb))
130 return -EINVAL;
131
132 return 0;
133}
134
135static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
136 .prepare_fb = omap_plane_prepare_fb,
137 .cleanup_fb = omap_plane_cleanup_fb,
138 .atomic_check = omap_plane_atomic_check,
139 .atomic_update = omap_plane_atomic_update,
140 .atomic_disable = omap_plane_atomic_disable,
141};
142
143static void omap_plane_destroy(struct drm_plane *plane)
144{
145 struct omap_plane *omap_plane = to_omap_plane(plane);
146
147 DBG("%s", omap_plane->name);
148
149 drm_plane_cleanup(plane);
150
151 kfree(omap_plane);
152}
153
154/* helper to install properties which are common to planes and crtcs */
155void omap_plane_install_properties(struct drm_plane *plane,
156 struct drm_mode_object *obj)
157{
158 struct drm_device *dev = plane->dev;
159 struct omap_drm_private *priv = dev->dev_private;
160
161 if (priv->has_dmm) {
162 if (!plane->rotation_property)
163 drm_plane_create_rotation_property(plane,
164 DRM_MODE_ROTATE_0,
165 DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
166 DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
167 DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
168
169 /* Attach the rotation property also to the crtc object */
170 if (plane->rotation_property && obj != &plane->base)
171 drm_object_attach_property(obj, plane->rotation_property,
172 DRM_MODE_ROTATE_0);
173 }
174
175 drm_object_attach_property(obj, priv->zorder_prop, 0);
176}
177
178static void omap_plane_reset(struct drm_plane *plane)
179{
180 struct omap_plane *omap_plane = to_omap_plane(plane);
181
182 drm_atomic_helper_plane_reset(plane);
183 if (!plane->state)
184 return;
185
186 /*
187 * Set the zpos default depending on whether we are a primary or overlay
188 * plane.
189 */
190 plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
191 ? 0 : omap_plane->id;
192}
193
194static int omap_plane_atomic_set_property(struct drm_plane *plane,
195 struct drm_plane_state *state,
196 struct drm_property *property,
197 u64 val)
198{
199 struct omap_drm_private *priv = plane->dev->dev_private;
200
201 if (property == priv->zorder_prop)
202 state->zpos = val;
203 else
204 return -EINVAL;
205
206 return 0;
207}
208
209static int omap_plane_atomic_get_property(struct drm_plane *plane,
210 const struct drm_plane_state *state,
211 struct drm_property *property,
212 u64 *val)
213{
214 struct omap_drm_private *priv = plane->dev->dev_private;
215
216 if (property == priv->zorder_prop)
217 *val = state->zpos;
218 else
219 return -EINVAL;
220
221 return 0;
222}
223
224static const struct drm_plane_funcs omap_plane_funcs = {
225 .update_plane = drm_atomic_helper_update_plane,
226 .disable_plane = drm_atomic_helper_disable_plane,
227 .reset = omap_plane_reset,
228 .destroy = omap_plane_destroy,
229 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
230 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
231 .atomic_set_property = omap_plane_atomic_set_property,
232 .atomic_get_property = omap_plane_atomic_get_property,
233};
234
235static const char *plane_id_to_name[] = {
236 [OMAP_DSS_GFX] = "gfx",
237 [OMAP_DSS_VIDEO1] = "vid1",
238 [OMAP_DSS_VIDEO2] = "vid2",
239 [OMAP_DSS_VIDEO3] = "vid3",
240};
241
242static const enum omap_plane_id plane_idx_to_id[] = {
243 OMAP_DSS_GFX,
244 OMAP_DSS_VIDEO1,
245 OMAP_DSS_VIDEO2,
246 OMAP_DSS_VIDEO3,
247};
248
249/* initialize plane */
250struct drm_plane *omap_plane_init(struct drm_device *dev,
251 int idx, enum drm_plane_type type,
252 u32 possible_crtcs)
253{
254 struct omap_drm_private *priv = dev->dev_private;
255 unsigned int num_planes = priv->dispc_ops->get_num_ovls(priv->dispc);
256 struct drm_plane *plane;
257 struct omap_plane *omap_plane;
258 enum omap_plane_id id;
259 int ret;
260 u32 nformats;
261 const u32 *formats;
262
263 if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
264 return ERR_PTR(-EINVAL);
265
266 id = plane_idx_to_id[idx];
267
268 DBG("%s: type=%d", plane_id_to_name[id], type);
269
270 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
271 if (!omap_plane)
272 return ERR_PTR(-ENOMEM);
273
274 formats = priv->dispc_ops->ovl_get_color_modes(priv->dispc, id);
275 for (nformats = 0; formats[nformats]; ++nformats)
276 ;
277 omap_plane->id = id;
278 omap_plane->name = plane_id_to_name[id];
279
280 plane = &omap_plane->base;
281
282 ret = drm_universal_plane_init(dev, plane, possible_crtcs,
283 &omap_plane_funcs, formats,
284 nformats, NULL, type, NULL);
285 if (ret < 0)
286 goto error;
287
288 drm_plane_helper_add(plane, &omap_plane_helper_funcs);
289
290 omap_plane_install_properties(plane, &plane->base);
291 drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
292 drm_plane_create_alpha_property(plane);
293 drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI) |
294 BIT(DRM_MODE_BLEND_COVERAGE));
295
296 return plane;
297
298error:
299 dev_err(dev->dev, "%s(): could not create plane: %s\n",
300 __func__, plane_id_to_name[id]);
301
302 kfree(omap_plane);
303 return NULL;
304}
1/*
2 * drivers/gpu/drm/omapdrm/omap_plane.c
3 *
4 * Copyright (C) 2011 Texas Instruments
5 * Author: Rob Clark <rob.clark@linaro.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "drm_flip_work.h"
21
22#include "omap_drv.h"
23#include "omap_dmm_tiler.h"
24
25/* some hackery because omapdss has an 'enum omap_plane' (which would be
26 * better named omap_plane_id).. and compiler seems unhappy about having
27 * both a 'struct omap_plane' and 'enum omap_plane'
28 */
29#define omap_plane _omap_plane
30
31/*
32 * plane funcs
33 */
34
35struct callback {
36 void (*fxn)(void *);
37 void *arg;
38};
39
40#define to_omap_plane(x) container_of(x, struct omap_plane, base)
41
42struct omap_plane {
43 struct drm_plane base;
44 int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */
45 const char *name;
46 struct omap_overlay_info info;
47 struct omap_drm_apply apply;
48
49 /* position/orientation of scanout within the fb: */
50 struct omap_drm_window win;
51 bool enabled;
52
53 /* last fb that we pinned: */
54 struct drm_framebuffer *pinned_fb;
55
56 uint32_t nformats;
57 uint32_t formats[32];
58
59 struct omap_drm_irq error_irq;
60
61 /* for deferring bo unpin's until next post_apply(): */
62 struct drm_flip_work unpin_work;
63
64 // XXX maybe get rid of this and handle vblank in crtc too?
65 struct callback apply_done_cb;
66};
67
68static void unpin_worker(struct drm_flip_work *work, void *val)
69{
70 struct omap_plane *omap_plane =
71 container_of(work, struct omap_plane, unpin_work);
72 struct drm_device *dev = omap_plane->base.dev;
73
74 omap_framebuffer_unpin(val);
75 mutex_lock(&dev->mode_config.mutex);
76 drm_framebuffer_unreference(val);
77 mutex_unlock(&dev->mode_config.mutex);
78}
79
80/* update which fb (if any) is pinned for scanout */
81static int update_pin(struct drm_plane *plane, struct drm_framebuffer *fb)
82{
83 struct omap_plane *omap_plane = to_omap_plane(plane);
84 struct drm_framebuffer *pinned_fb = omap_plane->pinned_fb;
85
86 if (pinned_fb != fb) {
87 int ret = 0;
88
89 DBG("%p -> %p", pinned_fb, fb);
90
91 if (fb) {
92 drm_framebuffer_reference(fb);
93 ret = omap_framebuffer_pin(fb);
94 }
95
96 if (pinned_fb)
97 drm_flip_work_queue(&omap_plane->unpin_work, pinned_fb);
98
99 if (ret) {
100 dev_err(plane->dev->dev, "could not swap %p -> %p\n",
101 omap_plane->pinned_fb, fb);
102 drm_framebuffer_unreference(fb);
103 omap_plane->pinned_fb = NULL;
104 return ret;
105 }
106
107 omap_plane->pinned_fb = fb;
108 }
109
110 return 0;
111}
112
113static void omap_plane_pre_apply(struct omap_drm_apply *apply)
114{
115 struct omap_plane *omap_plane =
116 container_of(apply, struct omap_plane, apply);
117 struct omap_drm_window *win = &omap_plane->win;
118 struct drm_plane *plane = &omap_plane->base;
119 struct drm_device *dev = plane->dev;
120 struct omap_overlay_info *info = &omap_plane->info;
121 struct drm_crtc *crtc = plane->crtc;
122 enum omap_channel channel;
123 bool enabled = omap_plane->enabled && crtc;
124 bool ilace, replication;
125 int ret;
126
127 DBG("%s, enabled=%d", omap_plane->name, enabled);
128
129 /* if fb has changed, pin new fb: */
130 update_pin(plane, enabled ? plane->fb : NULL);
131
132 if (!enabled) {
133 dispc_ovl_enable(omap_plane->id, false);
134 return;
135 }
136
137 channel = omap_crtc_channel(crtc);
138
139 /* update scanout: */
140 omap_framebuffer_update_scanout(plane->fb, win, info);
141
142 DBG("%dx%d -> %dx%d (%d)", info->width, info->height,
143 info->out_width, info->out_height,
144 info->screen_width);
145 DBG("%d,%d %08x %08x", info->pos_x, info->pos_y,
146 info->paddr, info->p_uv_addr);
147
148 /* TODO: */
149 ilace = false;
150 replication = false;
151
152 /* and finally, update omapdss: */
153 ret = dispc_ovl_setup(omap_plane->id, info,
154 replication, omap_crtc_timings(crtc), false);
155 if (ret) {
156 dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret);
157 return;
158 }
159
160 dispc_ovl_enable(omap_plane->id, true);
161 dispc_ovl_set_channel_out(omap_plane->id, channel);
162}
163
164static void omap_plane_post_apply(struct omap_drm_apply *apply)
165{
166 struct omap_plane *omap_plane =
167 container_of(apply, struct omap_plane, apply);
168 struct drm_plane *plane = &omap_plane->base;
169 struct omap_drm_private *priv = plane->dev->dev_private;
170 struct omap_overlay_info *info = &omap_plane->info;
171 struct callback cb;
172
173 cb = omap_plane->apply_done_cb;
174 omap_plane->apply_done_cb.fxn = NULL;
175
176 drm_flip_work_commit(&omap_plane->unpin_work, priv->wq);
177
178 if (cb.fxn)
179 cb.fxn(cb.arg);
180
181 if (omap_plane->enabled) {
182 omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y,
183 info->out_width, info->out_height);
184 }
185}
186
187static int apply(struct drm_plane *plane)
188{
189 if (plane->crtc) {
190 struct omap_plane *omap_plane = to_omap_plane(plane);
191 return omap_crtc_apply(plane->crtc, &omap_plane->apply);
192 }
193 return 0;
194}
195
196int omap_plane_mode_set(struct drm_plane *plane,
197 struct drm_crtc *crtc, struct drm_framebuffer *fb,
198 int crtc_x, int crtc_y,
199 unsigned int crtc_w, unsigned int crtc_h,
200 uint32_t src_x, uint32_t src_y,
201 uint32_t src_w, uint32_t src_h,
202 void (*fxn)(void *), void *arg)
203{
204 struct omap_plane *omap_plane = to_omap_plane(plane);
205 struct omap_drm_window *win = &omap_plane->win;
206
207 win->crtc_x = crtc_x;
208 win->crtc_y = crtc_y;
209 win->crtc_w = crtc_w;
210 win->crtc_h = crtc_h;
211
212 /* src values are in Q16 fixed point, convert to integer: */
213 win->src_x = src_x >> 16;
214 win->src_y = src_y >> 16;
215 win->src_w = src_w >> 16;
216 win->src_h = src_h >> 16;
217
218 if (fxn) {
219 /* omap_crtc should ensure that a new page flip
220 * isn't permitted while there is one pending:
221 */
222 BUG_ON(omap_plane->apply_done_cb.fxn);
223
224 omap_plane->apply_done_cb.fxn = fxn;
225 omap_plane->apply_done_cb.arg = arg;
226 }
227
228 if (plane->fb)
229 drm_framebuffer_unreference(plane->fb);
230
231 drm_framebuffer_reference(fb);
232
233 plane->fb = fb;
234 plane->crtc = crtc;
235
236 return apply(plane);
237}
238
239static int omap_plane_update(struct drm_plane *plane,
240 struct drm_crtc *crtc, struct drm_framebuffer *fb,
241 int crtc_x, int crtc_y,
242 unsigned int crtc_w, unsigned int crtc_h,
243 uint32_t src_x, uint32_t src_y,
244 uint32_t src_w, uint32_t src_h)
245{
246 struct omap_plane *omap_plane = to_omap_plane(plane);
247 omap_plane->enabled = true;
248
249 /* omap_plane_mode_set() takes adjusted src */
250 switch (omap_plane->win.rotation & 0xf) {
251 case BIT(DRM_ROTATE_90):
252 case BIT(DRM_ROTATE_270):
253 swap(src_w, src_h);
254 break;
255 }
256
257 return omap_plane_mode_set(plane, crtc, fb,
258 crtc_x, crtc_y, crtc_w, crtc_h,
259 src_x, src_y, src_w, src_h,
260 NULL, NULL);
261}
262
263static int omap_plane_disable(struct drm_plane *plane)
264{
265 struct omap_plane *omap_plane = to_omap_plane(plane);
266 omap_plane->win.rotation = BIT(DRM_ROTATE_0);
267 return omap_plane_dpms(plane, DRM_MODE_DPMS_OFF);
268}
269
270static void omap_plane_destroy(struct drm_plane *plane)
271{
272 struct omap_plane *omap_plane = to_omap_plane(plane);
273
274 DBG("%s", omap_plane->name);
275
276 omap_irq_unregister(plane->dev, &omap_plane->error_irq);
277
278 omap_plane_disable(plane);
279 drm_plane_cleanup(plane);
280
281 drm_flip_work_cleanup(&omap_plane->unpin_work);
282
283 kfree(omap_plane);
284}
285
286int omap_plane_dpms(struct drm_plane *plane, int mode)
287{
288 struct omap_plane *omap_plane = to_omap_plane(plane);
289 bool enabled = (mode == DRM_MODE_DPMS_ON);
290 int ret = 0;
291
292 if (enabled != omap_plane->enabled) {
293 omap_plane->enabled = enabled;
294 ret = apply(plane);
295 }
296
297 return ret;
298}
299
300/* helper to install properties which are common to planes and crtcs */
301void omap_plane_install_properties(struct drm_plane *plane,
302 struct drm_mode_object *obj)
303{
304 struct drm_device *dev = plane->dev;
305 struct omap_drm_private *priv = dev->dev_private;
306 struct drm_property *prop;
307
308 if (priv->has_dmm) {
309 prop = priv->rotation_prop;
310 if (!prop) {
311 const struct drm_prop_enum_list props[] = {
312 { DRM_ROTATE_0, "rotate-0" },
313 { DRM_ROTATE_90, "rotate-90" },
314 { DRM_ROTATE_180, "rotate-180" },
315 { DRM_ROTATE_270, "rotate-270" },
316 { DRM_REFLECT_X, "reflect-x" },
317 { DRM_REFLECT_Y, "reflect-y" },
318 };
319 prop = drm_property_create_bitmask(dev, 0, "rotation",
320 props, ARRAY_SIZE(props));
321 if (prop == NULL)
322 return;
323 priv->rotation_prop = prop;
324 }
325 drm_object_attach_property(obj, prop, 0);
326 }
327
328 prop = priv->zorder_prop;
329 if (!prop) {
330 prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
331 if (prop == NULL)
332 return;
333 priv->zorder_prop = prop;
334 }
335 drm_object_attach_property(obj, prop, 0);
336}
337
338int omap_plane_set_property(struct drm_plane *plane,
339 struct drm_property *property, uint64_t val)
340{
341 struct omap_plane *omap_plane = to_omap_plane(plane);
342 struct omap_drm_private *priv = plane->dev->dev_private;
343 int ret = -EINVAL;
344
345 if (property == priv->rotation_prop) {
346 DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val);
347 omap_plane->win.rotation = val;
348 ret = apply(plane);
349 } else if (property == priv->zorder_prop) {
350 DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val);
351 omap_plane->info.zorder = val;
352 ret = apply(plane);
353 }
354
355 return ret;
356}
357
358static const struct drm_plane_funcs omap_plane_funcs = {
359 .update_plane = omap_plane_update,
360 .disable_plane = omap_plane_disable,
361 .destroy = omap_plane_destroy,
362 .set_property = omap_plane_set_property,
363};
364
365static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
366{
367 struct omap_plane *omap_plane =
368 container_of(irq, struct omap_plane, error_irq);
369 DRM_ERROR("%s: errors: %08x\n", omap_plane->name, irqstatus);
370}
371
372static const char *plane_names[] = {
373 [OMAP_DSS_GFX] = "gfx",
374 [OMAP_DSS_VIDEO1] = "vid1",
375 [OMAP_DSS_VIDEO2] = "vid2",
376 [OMAP_DSS_VIDEO3] = "vid3",
377};
378
379static const uint32_t error_irqs[] = {
380 [OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW,
381 [OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW,
382 [OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW,
383 [OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW,
384};
385
386/* initialize plane */
387struct drm_plane *omap_plane_init(struct drm_device *dev,
388 int id, bool private_plane)
389{
390 struct omap_drm_private *priv = dev->dev_private;
391 struct drm_plane *plane = NULL;
392 struct omap_plane *omap_plane;
393 struct omap_overlay_info *info;
394 int ret;
395
396 DBG("%s: priv=%d", plane_names[id], private_plane);
397
398 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
399 if (!omap_plane)
400 goto fail;
401
402 ret = drm_flip_work_init(&omap_plane->unpin_work, 16,
403 "unpin", unpin_worker);
404 if (ret) {
405 dev_err(dev->dev, "could not allocate unpin FIFO\n");
406 goto fail;
407 }
408
409 omap_plane->nformats = omap_framebuffer_get_formats(
410 omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
411 dss_feat_get_supported_color_modes(id));
412 omap_plane->id = id;
413 omap_plane->name = plane_names[id];
414
415 plane = &omap_plane->base;
416
417 omap_plane->apply.pre_apply = omap_plane_pre_apply;
418 omap_plane->apply.post_apply = omap_plane_post_apply;
419
420 omap_plane->error_irq.irqmask = error_irqs[id];
421 omap_plane->error_irq.irq = omap_plane_error_irq;
422 omap_irq_register(dev, &omap_plane->error_irq);
423
424 drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &omap_plane_funcs,
425 omap_plane->formats, omap_plane->nformats, private_plane);
426
427 omap_plane_install_properties(plane, &plane->base);
428
429 /* get our starting configuration, set defaults for parameters
430 * we don't currently use, etc:
431 */
432 info = &omap_plane->info;
433 info->rotation_type = OMAP_DSS_ROT_DMA;
434 info->rotation = OMAP_DSS_ROT_0;
435 info->global_alpha = 0xff;
436 info->mirror = 0;
437
438 /* Set defaults depending on whether we are a CRTC or overlay
439 * layer.
440 * TODO add ioctl to give userspace an API to change this.. this
441 * will come in a subsequent patch.
442 */
443 if (private_plane)
444 omap_plane->info.zorder = 0;
445 else
446 omap_plane->info.zorder = id;
447
448 return plane;
449
450fail:
451 if (plane)
452 omap_plane_destroy(plane);
453
454 return NULL;
455}