1// SPDX-License-Identifier: GPL-2.0+
  2/*
  3 * rcar_du_vsp.h  --  R-Car Display Unit VSP-Based Compositor
  4 *
  5 * Copyright (C) 2015 Renesas Electronics Corporation
  6 *
  7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 
 
 
 
 
  8 */
  9
 
 10#include <drm/drm_atomic_helper.h>
 11#include <drm/drm_crtc.h>
 
 12#include <drm/drm_fb_cma_helper.h>
 13#include <drm/drm_fourcc.h>
 14#include <drm/drm_gem_cma_helper.h>
 15#include <drm/drm_gem_framebuffer_helper.h>
 16#include <drm/drm_plane_helper.h>
 17#include <drm/drm_vblank.h>
 18
 19#include <linux/bitops.h>
 20#include <linux/dma-mapping.h>
 21#include <linux/of_platform.h>
 22#include <linux/scatterlist.h>
 23#include <linux/videodev2.h>
 24
 25#include <media/vsp1.h>
 26
 27#include "rcar_du_drv.h"
 28#include "rcar_du_kms.h"
 29#include "rcar_du_vsp.h"
 30#include "rcar_du_writeback.h"
 31
 32static void rcar_du_vsp_complete(void *private, unsigned int status, u32 crc)
 33{
 34	struct rcar_du_crtc *crtc = private;
 35
 36	if (crtc->vblank_enable)
 37		drm_crtc_handle_vblank(&crtc->crtc);
 38
 39	if (status & VSP1_DU_STATUS_COMPLETE)
 40		rcar_du_crtc_finish_page_flip(crtc);
 41	if (status & VSP1_DU_STATUS_WRITEBACK)
 42		rcar_du_writeback_complete(crtc);
 43
 44	drm_crtc_add_crc_entry(&crtc->crtc, false, 0, &crc);
 45}
 46
 47void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
 48{
 49	const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
 50	struct rcar_du_device *rcdu = crtc->dev;
 51	struct vsp1_du_lif_config cfg = {
 52		.width = mode->hdisplay,
 53		.height = mode->vdisplay,
 54		.interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE,
 55		.callback = rcar_du_vsp_complete,
 56		.callback_data = crtc,
 57	};
 58	struct rcar_du_plane_state state = {
 59		.state = {
 60			.alpha = DRM_BLEND_ALPHA_OPAQUE,
 61			.crtc = &crtc->crtc,
 62			.dst.x1 = 0,
 63			.dst.y1 = 0,
 64			.dst.x2 = mode->hdisplay,
 65			.dst.y2 = mode->vdisplay,
 66			.src.x1 = 0,
 67			.src.y1 = 0,
 68			.src.x2 = mode->hdisplay << 16,
 69			.src.y2 = mode->vdisplay << 16,
 70			.zpos = 0,
 71		},
 72		.format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
 73		.source = RCAR_DU_PLANE_VSPD1,
 
 74		.colorkey = 0,
 75	};
 76
 77	if (rcdu->info->gen >= 3)
 78		state.hwindex = (crtc->index % 2) ? 2 : 0;
 79	else
 80		state.hwindex = crtc->index % 2;
 81
 82	__rcar_du_plane_setup(crtc->group, &state);
 83
 84	/*
 85	 * Ensure that the plane source configuration takes effect by requesting
 86	 * a restart of the group. See rcar_du_plane_atomic_update() for a more
 87	 * detailed explanation.
 88	 *
 89	 * TODO: Check whether this is still needed on Gen3.
 90	 */
 91	crtc->group->need_restart = true;
 92
 93	vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, &cfg);
 94}
 95
 96void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
 97{
 98	vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, NULL);
 99}
100
101void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
102{
103	vsp1_du_atomic_begin(crtc->vsp->vsp, crtc->vsp_pipe);
104}
105
106void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
107{
108	struct vsp1_du_atomic_pipe_config cfg = { { 0, } };
109	struct rcar_du_crtc_state *state;
110
111	state = to_rcar_crtc_state(crtc->crtc.state);
112	cfg.crc = state->crc;
113
114	rcar_du_writeback_setup(crtc, &cfg.writeback);
115
116	vsp1_du_atomic_flush(crtc->vsp->vsp, crtc->vsp_pipe, &cfg);
117}
118
119static const u32 rcar_du_vsp_formats[] = {
 
120	DRM_FORMAT_RGB332,
121	DRM_FORMAT_ARGB4444,
122	DRM_FORMAT_XRGB4444,
123	DRM_FORMAT_ARGB1555,
124	DRM_FORMAT_XRGB1555,
125	DRM_FORMAT_RGB565,
126	DRM_FORMAT_BGR888,
127	DRM_FORMAT_RGB888,
128	DRM_FORMAT_BGRA8888,
129	DRM_FORMAT_BGRX8888,
130	DRM_FORMAT_ARGB8888,
131	DRM_FORMAT_XRGB8888,
132	DRM_FORMAT_UYVY,
 
133	DRM_FORMAT_YUYV,
134	DRM_FORMAT_YVYU,
135	DRM_FORMAT_NV12,
136	DRM_FORMAT_NV21,
137	DRM_FORMAT_NV16,
138	DRM_FORMAT_NV61,
139	DRM_FORMAT_YUV420,
140	DRM_FORMAT_YVU420,
141	DRM_FORMAT_YUV422,
142	DRM_FORMAT_YVU422,
143	DRM_FORMAT_YUV444,
144	DRM_FORMAT_YVU444,
145};
146
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
147static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
148{
149	struct rcar_du_vsp_plane_state *state =
150		to_rcar_vsp_plane_state(plane->plane.state);
151	struct rcar_du_crtc *crtc = to_rcar_crtc(state->state.crtc);
152	struct drm_framebuffer *fb = plane->plane.state->fb;
153	const struct rcar_du_format_info *format;
154	struct vsp1_du_atomic_config cfg = {
155		.pixelformat = 0,
156		.pitch = fb->pitches[0],
157		.alpha = state->state.alpha >> 8,
158		.zpos = state->state.zpos,
159	};
160	unsigned int i;
161
162	cfg.src.left = state->state.src.x1 >> 16;
163	cfg.src.top = state->state.src.y1 >> 16;
164	cfg.src.width = drm_rect_width(&state->state.src) >> 16;
165	cfg.src.height = drm_rect_height(&state->state.src) >> 16;
166
167	cfg.dst.left = state->state.dst.x1;
168	cfg.dst.top = state->state.dst.y1;
169	cfg.dst.width = drm_rect_width(&state->state.dst);
170	cfg.dst.height = drm_rect_height(&state->state.dst);
171
172	for (i = 0; i < state->format->planes; ++i)
173		cfg.mem[i] = sg_dma_address(state->sg_tables[i].sgl)
174			   + fb->offsets[i];
175
176	format = rcar_du_format_info(state->format->fourcc);
177	cfg.pixelformat = format->v4l2;
178
179	vsp1_du_atomic_update(plane->vsp->vsp, crtc->vsp_pipe,
180			      plane->index, &cfg);
181}
182
183int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
184		       struct sg_table sg_tables[3])
185{
186	struct rcar_du_device *rcdu = vsp->dev;
187	unsigned int i;
188	int ret;
189
190	for (i = 0; i < fb->format->num_planes; ++i) {
191		struct drm_gem_cma_object *gem = drm_fb_cma_get_gem_obj(fb, i);
192		struct sg_table *sgt = &sg_tables[i];
193
194		ret = dma_get_sgtable(rcdu->dev, sgt, gem->vaddr, gem->paddr,
195				      gem->base.size);
196		if (ret)
197			goto fail;
198
199		ret = vsp1_du_map_sg(vsp->vsp, sgt);
200		if (!ret) {
201			sg_free_table(sgt);
202			ret = -ENOMEM;
203			goto fail;
204		}
205	}
206
207	return 0;
208
209fail:
210	while (i--) {
211		struct sg_table *sgt = &sg_tables[i];
212
213		vsp1_du_unmap_sg(vsp->vsp, sgt);
214		sg_free_table(sgt);
215	}
216
217	return ret;
218}
219
220static int rcar_du_vsp_plane_prepare_fb(struct drm_plane *plane,
221					struct drm_plane_state *state)
222{
223	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
224	struct rcar_du_vsp *vsp = to_rcar_vsp_plane(plane)->vsp;
225	int ret;
226
227	/*
228	 * There's no need to prepare (and unprepare) the framebuffer when the
229	 * plane is not visible, as it will not be displayed.
230	 */
231	if (!state->visible)
232		return 0;
233
234	ret = rcar_du_vsp_map_fb(vsp, state->fb, rstate->sg_tables);
235	if (ret < 0)
236		return ret;
237
238	return drm_gem_fb_prepare_fb(plane, state);
239}
240
241void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
242			  struct sg_table sg_tables[3])
243{
244	unsigned int i;
245
246	for (i = 0; i < fb->format->num_planes; ++i) {
247		struct sg_table *sgt = &sg_tables[i];
248
249		vsp1_du_unmap_sg(vsp->vsp, sgt);
250		sg_free_table(sgt);
251	}
252}
253
254static void rcar_du_vsp_plane_cleanup_fb(struct drm_plane *plane,
255					 struct drm_plane_state *state)
256{
257	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
258	struct rcar_du_vsp *vsp = to_rcar_vsp_plane(plane)->vsp;
259
260	if (!state->visible)
261		return;
262
263	rcar_du_vsp_unmap_fb(vsp, state->fb, rstate->sg_tables);
264}
 
 
 
265
266static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
267					  struct drm_plane_state *state)
268{
269	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
 
 
270
271	return __rcar_du_plane_atomic_check(plane, state, &rstate->format);
272}
273
274static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
275					struct drm_plane_state *old_state)
276{
277	struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
278	struct rcar_du_crtc *crtc = to_rcar_crtc(old_state->crtc);
279
280	if (plane->state->visible)
281		rcar_du_vsp_plane_setup(rplane);
282	else
283		vsp1_du_atomic_update(rplane->vsp->vsp, crtc->vsp_pipe,
284				      rplane->index, NULL);
285}
286
287static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
288	.prepare_fb = rcar_du_vsp_plane_prepare_fb,
289	.cleanup_fb = rcar_du_vsp_plane_cleanup_fb,
290	.atomic_check = rcar_du_vsp_plane_atomic_check,
291	.atomic_update = rcar_du_vsp_plane_atomic_update,
292};
293
294static struct drm_plane_state *
295rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
296{
 
297	struct rcar_du_vsp_plane_state *copy;
298
299	if (WARN_ON(!plane->state))
300		return NULL;
301
302	copy = kzalloc(sizeof(*copy), GFP_KERNEL);
 
303	if (copy == NULL)
304		return NULL;
305
306	__drm_atomic_helper_plane_duplicate_state(plane, &copy->state);
307
308	return &copy->state;
309}
310
311static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
312						   struct drm_plane_state *state)
313{
314	__drm_atomic_helper_plane_destroy_state(state);
315	kfree(to_rcar_vsp_plane_state(state));
316}
317
318static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
319{
320	struct rcar_du_vsp_plane_state *state;
321
322	if (plane->state) {
323		rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
324		plane->state = NULL;
325	}
326
327	state = kzalloc(sizeof(*state), GFP_KERNEL);
328	if (state == NULL)
329		return;
330
331	__drm_atomic_helper_plane_reset(plane, &state->state);
332	state->state.zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
333}
334
335static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
336	.update_plane = drm_atomic_helper_update_plane,
337	.disable_plane = drm_atomic_helper_disable_plane,
338	.reset = rcar_du_vsp_plane_reset,
 
339	.destroy = drm_plane_cleanup,
340	.atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
341	.atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
 
 
342};
343
344int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
345		     unsigned int crtcs)
346{
347	struct rcar_du_device *rcdu = vsp->dev;
348	struct platform_device *pdev;
349	unsigned int num_crtcs = hweight32(crtcs);
350	unsigned int i;
351	int ret;
352
353	/* Find the VSP device and initialize it. */
 
 
 
 
 
 
354	pdev = of_find_device_by_node(np);
 
355	if (!pdev)
356		return -ENXIO;
357
358	vsp->vsp = &pdev->dev;
359
360	ret = vsp1_du_init(vsp->vsp);
361	if (ret < 0)
362		return ret;
363
364	 /*
365	  * The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
366	  * 4 RPFs.
367	  */
368	vsp->num_planes = rcdu->info->gen >= 3 ? 5 : 4;
369
370	vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
371				   sizeof(*vsp->planes), GFP_KERNEL);
372	if (!vsp->planes)
373		return -ENOMEM;
374
375	for (i = 0; i < vsp->num_planes; ++i) {
376		enum drm_plane_type type = i < num_crtcs
377					 ? DRM_PLANE_TYPE_PRIMARY
378					 : DRM_PLANE_TYPE_OVERLAY;
379		struct rcar_du_vsp_plane *plane = &vsp->planes[i];
380
381		plane->vsp = vsp;
382		plane->index = i;
383
384		ret = drm_universal_plane_init(rcdu->ddev, &plane->plane, crtcs,
 
385					       &rcar_du_vsp_plane_funcs,
386					       rcar_du_vsp_formats,
387					       ARRAY_SIZE(rcar_du_vsp_formats),
388					       NULL, type, NULL);
389		if (ret < 0)
390			return ret;
391
392		drm_plane_helper_add(&plane->plane,
393				     &rcar_du_vsp_plane_helper_funcs);
394
395		if (type == DRM_PLANE_TYPE_PRIMARY)
396			continue;
397
398		drm_plane_create_alpha_property(&plane->plane);
 
399		drm_plane_create_zpos_property(&plane->plane, 1, 1,
400					       vsp->num_planes - 1);
401	}
402
403	return 0;
404}

 
  1/*
  2 * rcar_du_vsp.h  --  R-Car Display Unit VSP-Based Compositor
  3 *
  4 * Copyright (C) 2015 Renesas Electronics Corporation
  5 *
  6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  7 *
  8 * This program is free software; you can redistribute it and/or modify
  9 * it under the terms of the GNU General Public License as published by
 10 * the Free Software Foundation; either version 2 of the License, or
 11 * (at your option) any later version.
 12 */
 13
 14#include <drm/drmP.h>
 15#include <drm/drm_atomic_helper.h>
 16#include <drm/drm_crtc.h>
 17#include <drm/drm_crtc_helper.h>
 18#include <drm/drm_fb_cma_helper.h>
 
 19#include <drm/drm_gem_cma_helper.h>
 
 20#include <drm/drm_plane_helper.h>
 
 21
 
 
 22#include <linux/of_platform.h>
 
 23#include <linux/videodev2.h>
 24
 25#include <media/vsp1.h>
 26
 27#include "rcar_du_drv.h"
 28#include "rcar_du_kms.h"
 29#include "rcar_du_vsp.h"
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 30
 31void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
 32{
 33	const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
 34	struct rcar_du_device *rcdu = crtc->group->dev;
 
 
 
 
 
 
 
 35	struct rcar_du_plane_state state = {
 36		.state = {
 
 37			.crtc = &crtc->crtc,
 38			.crtc_x = 0,
 39			.crtc_y = 0,
 40			.crtc_w = mode->hdisplay,
 41			.crtc_h = mode->vdisplay,
 42			.src_x = 0,
 43			.src_y = 0,
 44			.src_w = mode->hdisplay << 16,
 45			.src_h = mode->vdisplay << 16,
 46			.zpos = 0,
 47		},
 48		.format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
 49		.source = RCAR_DU_PLANE_VSPD1,
 50		.alpha = 255,
 51		.colorkey = 0,
 52	};
 53
 54	if (rcdu->info->gen >= 3)
 55		state.hwindex = (crtc->index % 2) ? 2 : 0;
 56	else
 57		state.hwindex = crtc->index % 2;
 58
 59	__rcar_du_plane_setup(crtc->group, &state);
 60
 61	/* Ensure that the plane source configuration takes effect by requesting
 
 62	 * a restart of the group. See rcar_du_plane_atomic_update() for a more
 63	 * detailed explanation.
 64	 *
 65	 * TODO: Check whether this is still needed on Gen3.
 66	 */
 67	crtc->group->need_restart = true;
 68
 69	vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay);
 70}
 71
 72void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
 73{
 74	vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0);
 75}
 76
 77void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
 78{
 79	vsp1_du_atomic_begin(crtc->vsp->vsp);
 80}
 81
 82void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
 83{
 84	vsp1_du_atomic_flush(crtc->vsp->vsp);
 
 
 
 
 
 
 
 
 85}
 86
 87/* Keep the two tables in sync. */
 88static const u32 formats_kms[] = {
 89	DRM_FORMAT_RGB332,
 90	DRM_FORMAT_ARGB4444,
 91	DRM_FORMAT_XRGB4444,
 92	DRM_FORMAT_ARGB1555,
 93	DRM_FORMAT_XRGB1555,
 94	DRM_FORMAT_RGB565,
 95	DRM_FORMAT_BGR888,
 96	DRM_FORMAT_RGB888,
 97	DRM_FORMAT_BGRA8888,
 98	DRM_FORMAT_BGRX8888,
 99	DRM_FORMAT_ARGB8888,
100	DRM_FORMAT_XRGB8888,
101	DRM_FORMAT_UYVY,
102	DRM_FORMAT_VYUY,
103	DRM_FORMAT_YUYV,
104	DRM_FORMAT_YVYU,
105	DRM_FORMAT_NV12,
106	DRM_FORMAT_NV21,
107	DRM_FORMAT_NV16,
108	DRM_FORMAT_NV61,
109	DRM_FORMAT_YUV420,
110	DRM_FORMAT_YVU420,
111	DRM_FORMAT_YUV422,
112	DRM_FORMAT_YVU422,
113	DRM_FORMAT_YUV444,
114	DRM_FORMAT_YVU444,
115};
116
117static const u32 formats_v4l2[] = {
118	V4L2_PIX_FMT_RGB332,
119	V4L2_PIX_FMT_ARGB444,
120	V4L2_PIX_FMT_XRGB444,
121	V4L2_PIX_FMT_ARGB555,
122	V4L2_PIX_FMT_XRGB555,
123	V4L2_PIX_FMT_RGB565,
124	V4L2_PIX_FMT_RGB24,
125	V4L2_PIX_FMT_BGR24,
126	V4L2_PIX_FMT_ARGB32,
127	V4L2_PIX_FMT_XRGB32,
128	V4L2_PIX_FMT_ABGR32,
129	V4L2_PIX_FMT_XBGR32,
130	V4L2_PIX_FMT_UYVY,
131	V4L2_PIX_FMT_VYUY,
132	V4L2_PIX_FMT_YUYV,
133	V4L2_PIX_FMT_YVYU,
134	V4L2_PIX_FMT_NV12M,
135	V4L2_PIX_FMT_NV21M,
136	V4L2_PIX_FMT_NV16M,
137	V4L2_PIX_FMT_NV61M,
138	V4L2_PIX_FMT_YUV420M,
139	V4L2_PIX_FMT_YVU420M,
140	V4L2_PIX_FMT_YUV422M,
141	V4L2_PIX_FMT_YVU422M,
142	V4L2_PIX_FMT_YUV444M,
143	V4L2_PIX_FMT_YVU444M,
144};
145
146static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
147{
148	struct rcar_du_vsp_plane_state *state =
149		to_rcar_vsp_plane_state(plane->plane.state);
 
150	struct drm_framebuffer *fb = plane->plane.state->fb;
 
151	struct vsp1_du_atomic_config cfg = {
152		.pixelformat = 0,
153		.pitch = fb->pitches[0],
154		.alpha = state->alpha,
155		.zpos = state->state.zpos,
156	};
157	unsigned int i;
158
159	cfg.src.left = state->state.src_x >> 16;
160	cfg.src.top = state->state.src_y >> 16;
161	cfg.src.width = state->state.src_w >> 16;
162	cfg.src.height = state->state.src_h >> 16;
163
164	cfg.dst.left = state->state.crtc_x;
165	cfg.dst.top = state->state.crtc_y;
166	cfg.dst.width = state->state.crtc_w;
167	cfg.dst.height = state->state.crtc_h;
 
 
 
 
168
169	for (i = 0; i < state->format->planes; ++i) {
170		struct drm_gem_cma_object *gem;
 
 
 
 
 
 
 
 
 
 
 
171
172		gem = drm_fb_cma_get_gem_obj(fb, i);
173		cfg.mem[i] = gem->paddr + fb->offsets[i];
 
 
 
 
 
 
 
 
 
 
 
 
 
174	}
175
176	for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
177		if (formats_kms[i] == state->format->fourcc) {
178			cfg.pixelformat = formats_v4l2[i];
179			break;
180		}
 
 
 
181	}
182
183	vsp1_du_atomic_update(plane->vsp->vsp, plane->index, &cfg);
184}
185
186static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
187					  struct drm_plane_state *state)
188{
189	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
190	struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
191	struct rcar_du_device *rcdu = rplane->vsp->dev;
192
193	if (!state->fb || !state->crtc) {
194		rstate->format = NULL;
 
 
 
195		return 0;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
196	}
 
 
 
 
 
 
 
 
 
 
197
198	if (state->src_w >> 16 != state->crtc_w ||
199	    state->src_h >> 16 != state->crtc_h) {
200		dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
201		return -EINVAL;
202	}
203
204	rstate->format = rcar_du_format_info(state->fb->pixel_format);
205	if (rstate->format == NULL) {
206		dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
207			state->fb->pixel_format);
208		return -EINVAL;
209	}
210
211	return 0;
212}
213
214static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
215					struct drm_plane_state *old_state)
216{
217	struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
 
218
219	if (plane->state->crtc)
220		rcar_du_vsp_plane_setup(rplane);
221	else
222		vsp1_du_atomic_update(rplane->vsp->vsp, rplane->index, NULL);
 
223}
224
225static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
 
 
226	.atomic_check = rcar_du_vsp_plane_atomic_check,
227	.atomic_update = rcar_du_vsp_plane_atomic_update,
228};
229
230static struct drm_plane_state *
231rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
232{
233	struct rcar_du_vsp_plane_state *state;
234	struct rcar_du_vsp_plane_state *copy;
235
236	if (WARN_ON(!plane->state))
237		return NULL;
238
239	state = to_rcar_vsp_plane_state(plane->state);
240	copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
241	if (copy == NULL)
242		return NULL;
243
244	__drm_atomic_helper_plane_duplicate_state(plane, &copy->state);
245
246	return &copy->state;
247}
248
249static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
250						   struct drm_plane_state *state)
251{
252	__drm_atomic_helper_plane_destroy_state(state);
253	kfree(to_rcar_vsp_plane_state(state));
254}
255
256static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
257{
258	struct rcar_du_vsp_plane_state *state;
259
260	if (plane->state) {
261		rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
262		plane->state = NULL;
263	}
264
265	state = kzalloc(sizeof(*state), GFP_KERNEL);
266	if (state == NULL)
267		return;
268
269	state->alpha = 255;
270	state->state.zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
271
272	plane->state = &state->state;
273	plane->state->plane = plane;
274}
275
276static int rcar_du_vsp_plane_atomic_set_property(struct drm_plane *plane,
277	struct drm_plane_state *state, struct drm_property *property,
278	uint64_t val)
279{
280	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
281	struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
282
283	if (property == rcdu->props.alpha)
284		rstate->alpha = val;
285	else
286		return -EINVAL;
287
288	return 0;
289}
290
291static int rcar_du_vsp_plane_atomic_get_property(struct drm_plane *plane,
292	const struct drm_plane_state *state, struct drm_property *property,
293	uint64_t *val)
294{
295	const struct rcar_du_vsp_plane_state *rstate =
296		container_of(state, const struct rcar_du_vsp_plane_state, state);
297	struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
298
299	if (property == rcdu->props.alpha)
300		*val = rstate->alpha;
301	else
302		return -EINVAL;
303
304	return 0;
305}
306
307static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
308	.update_plane = drm_atomic_helper_update_plane,
309	.disable_plane = drm_atomic_helper_disable_plane,
310	.reset = rcar_du_vsp_plane_reset,
311	.set_property = drm_atomic_helper_plane_set_property,
312	.destroy = drm_plane_cleanup,
313	.atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
314	.atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
315	.atomic_set_property = rcar_du_vsp_plane_atomic_set_property,
316	.atomic_get_property = rcar_du_vsp_plane_atomic_get_property,
317};
318
319int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
 
320{
321	struct rcar_du_device *rcdu = vsp->dev;
322	struct platform_device *pdev;
323	struct device_node *np;
324	unsigned int i;
325	int ret;
326
327	/* Find the VSP device and initialize it. */
328	np = of_parse_phandle(rcdu->dev->of_node, "vsps", vsp->index);
329	if (!np) {
330		dev_err(rcdu->dev, "vsps node not found\n");
331		return -ENXIO;
332	}
333
334	pdev = of_find_device_by_node(np);
335	of_node_put(np);
336	if (!pdev)
337		return -ENXIO;
338
339	vsp->vsp = &pdev->dev;
340
341	ret = vsp1_du_init(vsp->vsp);
342	if (ret < 0)
343		return ret;
344
345	 /* The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
 
346	  * 4 RPFs.
347	  */
348	vsp->num_planes = rcdu->info->gen >= 3 ? 5 : 4;
349
350	vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
351				   sizeof(*vsp->planes), GFP_KERNEL);
352	if (!vsp->planes)
353		return -ENOMEM;
354
355	for (i = 0; i < vsp->num_planes; ++i) {
356		enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY
357					 : DRM_PLANE_TYPE_PRIMARY;
 
358		struct rcar_du_vsp_plane *plane = &vsp->planes[i];
359
360		plane->vsp = vsp;
361		plane->index = i;
362
363		ret = drm_universal_plane_init(rcdu->ddev, &plane->plane,
364					       1 << vsp->index,
365					       &rcar_du_vsp_plane_funcs,
366					       formats_kms,
367					       ARRAY_SIZE(formats_kms), type,
368					       NULL);
369		if (ret < 0)
370			return ret;
371
372		drm_plane_helper_add(&plane->plane,
373				     &rcar_du_vsp_plane_helper_funcs);
374
375		if (type == DRM_PLANE_TYPE_PRIMARY)
376			continue;
377
378		drm_object_attach_property(&plane->plane.base,
379					   rcdu->props.alpha, 255);
380		drm_plane_create_zpos_property(&plane->plane, 1, 1,
381					       vsp->num_planes - 1);
382	}
383
384	return 0;
385}