2 * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
4 * Copyright (C) 2015 Renesas Electronics Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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.
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>
22 #include <linux/of_platform.h>
23 #include <linux/videodev2.h>
25 #include <media/vsp1.h>
27 #include "rcar_du_drv.h"
28 #include "rcar_du_kms.h"
29 #include "rcar_du_vsp.h"
31 void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
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 = {
40 .crtc_w = mode->hdisplay,
41 .crtc_h = mode->vdisplay,
44 .src_w = mode->hdisplay << 16,
45 .src_h = mode->vdisplay << 16,
47 .format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
48 .source = RCAR_DU_PLANE_VSPD1,
54 if (rcdu->info->gen >= 3)
55 state.hwindex = (crtc->index % 2) ? 2 : 0;
57 state.hwindex = crtc->index % 2;
59 __rcar_du_plane_setup(crtc->group, &state);
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.
65 * TODO: Check whether this is still needed on Gen3.
67 crtc->group->need_restart = true;
69 vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay);
72 void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
74 vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0);
77 void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
79 vsp1_du_atomic_begin(crtc->vsp->vsp);
82 void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
84 vsp1_du_atomic_flush(crtc->vsp->vsp);
87 /* Keep the two tables in sync. */
88 static const u32 formats_kms[] = {
117 static const u32 formats_v4l2[] = {
119 V4L2_PIX_FMT_ARGB444,
120 V4L2_PIX_FMT_XRGB444,
121 V4L2_PIX_FMT_ARGB555,
122 V4L2_PIX_FMT_XRGB555,
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,
146 static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
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 v4l2_rect src;
152 struct v4l2_rect dst;
153 dma_addr_t paddr[2] = { 0, };
157 src.left = state->state.src_x >> 16;
158 src.top = state->state.src_y >> 16;
159 src.width = state->state.src_w >> 16;
160 src.height = state->state.src_h >> 16;
162 dst.left = state->state.crtc_x;
163 dst.top = state->state.crtc_y;
164 dst.width = state->state.crtc_w;
165 dst.height = state->state.crtc_h;
167 for (i = 0; i < state->format->planes; ++i) {
168 struct drm_gem_cma_object *gem;
170 gem = drm_fb_cma_get_gem_obj(fb, i);
171 paddr[i] = gem->paddr + fb->offsets[i];
174 for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
175 if (formats_kms[i] == state->format->fourcc) {
176 pixelformat = formats_v4l2[i];
181 WARN_ON(!pixelformat);
183 vsp1_du_atomic_update(plane->vsp->vsp, plane->index, pixelformat,
184 fb->pitches[0], paddr, &src, &dst);
187 static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
188 struct drm_plane_state *state)
190 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
191 struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
192 struct rcar_du_device *rcdu = rplane->vsp->dev;
194 if (!state->fb || !state->crtc) {
195 rstate->format = NULL;
199 if (state->src_w >> 16 != state->crtc_w ||
200 state->src_h >> 16 != state->crtc_h) {
201 dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
205 rstate->format = rcar_du_format_info(state->fb->pixel_format);
206 if (rstate->format == NULL) {
207 dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
208 state->fb->pixel_format);
215 static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
216 struct drm_plane_state *old_state)
218 struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
220 if (plane->state->crtc)
221 rcar_du_vsp_plane_setup(rplane);
223 vsp1_du_atomic_update(rplane->vsp->vsp, rplane->index, 0, 0, 0,
227 static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
228 .atomic_check = rcar_du_vsp_plane_atomic_check,
229 .atomic_update = rcar_du_vsp_plane_atomic_update,
232 static struct drm_plane_state *
233 rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
235 struct rcar_du_vsp_plane_state *state;
236 struct rcar_du_vsp_plane_state *copy;
238 if (WARN_ON(!plane->state))
241 state = to_rcar_vsp_plane_state(plane->state);
242 copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
246 __drm_atomic_helper_plane_duplicate_state(plane, ©->state);
251 static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
252 struct drm_plane_state *state)
254 __drm_atomic_helper_plane_destroy_state(state);
255 kfree(to_rcar_vsp_plane_state(state));
258 static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
260 struct rcar_du_vsp_plane_state *state;
263 rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
267 state = kzalloc(sizeof(*state), GFP_KERNEL);
273 plane->state = &state->state;
274 plane->state->plane = plane;
277 static int rcar_du_vsp_plane_atomic_set_property(struct drm_plane *plane,
278 struct drm_plane_state *state, struct drm_property *property,
281 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
282 struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
284 if (property == rcdu->props.alpha)
292 static int rcar_du_vsp_plane_atomic_get_property(struct drm_plane *plane,
293 const struct drm_plane_state *state, struct drm_property *property,
296 const struct rcar_du_vsp_plane_state *rstate =
297 container_of(state, const struct rcar_du_vsp_plane_state, state);
298 struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
300 if (property == rcdu->props.alpha)
301 *val = rstate->alpha;
308 static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
309 .update_plane = drm_atomic_helper_update_plane,
310 .disable_plane = drm_atomic_helper_disable_plane,
311 .reset = rcar_du_vsp_plane_reset,
312 .set_property = drm_atomic_helper_plane_set_property,
313 .destroy = drm_plane_cleanup,
314 .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
315 .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
316 .atomic_set_property = rcar_du_vsp_plane_atomic_set_property,
317 .atomic_get_property = rcar_du_vsp_plane_atomic_get_property,
320 int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
322 struct rcar_du_device *rcdu = vsp->dev;
323 struct platform_device *pdev;
324 struct device_node *np;
328 /* Find the VSP device and initialize it. */
329 np = of_parse_phandle(rcdu->dev->of_node, "vsps", vsp->index);
331 dev_err(rcdu->dev, "vsps node not found\n");
335 pdev = of_find_device_by_node(np);
340 vsp->vsp = &pdev->dev;
342 ret = vsp1_du_init(vsp->vsp);
346 /* The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
349 vsp->num_planes = rcdu->info->gen >= 3 ? 5 : 4;
351 vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
352 sizeof(*vsp->planes), GFP_KERNEL);
356 for (i = 0; i < vsp->num_planes; ++i) {
357 enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY
358 : DRM_PLANE_TYPE_PRIMARY;
359 struct rcar_du_vsp_plane *plane = &vsp->planes[i];
364 ret = drm_universal_plane_init(rcdu->ddev, &plane->plane,
366 &rcar_du_vsp_plane_funcs,
368 ARRAY_SIZE(formats_kms), type,
373 drm_plane_helper_add(&plane->plane,
374 &rcar_du_vsp_plane_helper_funcs);
376 if (type == DRM_PLANE_TYPE_PRIMARY)
379 drm_object_attach_property(&plane->plane.base,
380 rcdu->props.alpha, 255);