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@@ -0,0 +1,370 @@
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+/*
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+ * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
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+ *
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+ * Copyright (C) 2015 Renesas Electronics Corporation
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+ *
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+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ */
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+
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+#include <drm/drmP.h>
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+#include <drm/drm_atomic_helper.h>
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+#include <drm/drm_crtc.h>
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+#include <drm/drm_crtc_helper.h>
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+#include <drm/drm_fb_cma_helper.h>
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+#include <drm/drm_gem_cma_helper.h>
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+#include <drm/drm_plane_helper.h>
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+
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+#include <linux/of_platform.h>
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+#include <linux/videodev2.h>
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+
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+#include <media/vsp1.h>
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+
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+#include "rcar_du_drv.h"
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+#include "rcar_du_kms.h"
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+#include "rcar_du_vsp.h"
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+
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+void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
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+{
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+ const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
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+ struct rcar_du_plane_state state = {
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+ .state = {
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+ .crtc = &crtc->crtc,
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+ .crtc_x = 0,
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+ .crtc_y = 0,
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+ .crtc_w = mode->hdisplay,
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+ .crtc_h = mode->vdisplay,
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+ .src_x = 0,
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+ .src_y = 0,
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+ .src_w = mode->hdisplay << 16,
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+ .src_h = mode->vdisplay << 16,
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+ },
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+ .format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
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+ .hwindex = crtc->index % 2,
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+ .source = RCAR_DU_PLANE_VSPD1,
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+ .alpha = 255,
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+ .colorkey = 0,
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+ .zpos = 0,
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+ };
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+
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+ __rcar_du_plane_setup(crtc->group, &state);
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+
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+ /* Ensure that the plane source configuration takes effect by requesting
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+ * a restart of the group. See rcar_du_plane_atomic_update() for a more
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+ * detailed explanation.
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+ *
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+ * TODO: Check whether this is still needed on Gen3.
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+ */
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+ crtc->group->need_restart = true;
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+
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+ vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay);
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+}
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+
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+void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
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+{
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+ vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0);
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+}
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+
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+void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
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+{
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+ vsp1_du_atomic_begin(crtc->vsp->vsp);
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+}
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+
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+void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
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+{
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+ vsp1_du_atomic_flush(crtc->vsp->vsp);
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+}
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+
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+/* Keep the two tables in sync. */
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+static const u32 formats_kms[] = {
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+ DRM_FORMAT_RGB332,
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+ DRM_FORMAT_ARGB4444,
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+ DRM_FORMAT_XRGB4444,
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+ DRM_FORMAT_ARGB1555,
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+ DRM_FORMAT_XRGB1555,
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+ DRM_FORMAT_RGB565,
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+ DRM_FORMAT_BGR888,
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+ DRM_FORMAT_RGB888,
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+ DRM_FORMAT_BGRA8888,
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+ DRM_FORMAT_BGRX8888,
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+ DRM_FORMAT_ARGB8888,
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+ DRM_FORMAT_XRGB8888,
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+ DRM_FORMAT_UYVY,
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+ DRM_FORMAT_VYUY,
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+ DRM_FORMAT_YUYV,
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+ DRM_FORMAT_YVYU,
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+ DRM_FORMAT_NV12,
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+ DRM_FORMAT_NV21,
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+ DRM_FORMAT_NV16,
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+ DRM_FORMAT_NV61,
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+};
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+
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+static const u32 formats_v4l2[] = {
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+ V4L2_PIX_FMT_RGB332,
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+ V4L2_PIX_FMT_ARGB444,
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+ V4L2_PIX_FMT_XRGB444,
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+ V4L2_PIX_FMT_ARGB555,
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+ V4L2_PIX_FMT_XRGB555,
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+ V4L2_PIX_FMT_RGB565,
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+ V4L2_PIX_FMT_RGB24,
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+ V4L2_PIX_FMT_BGR24,
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+ V4L2_PIX_FMT_ARGB32,
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+ V4L2_PIX_FMT_XRGB32,
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+ V4L2_PIX_FMT_ABGR32,
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+ V4L2_PIX_FMT_XBGR32,
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+ V4L2_PIX_FMT_UYVY,
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+ V4L2_PIX_FMT_VYUY,
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+ V4L2_PIX_FMT_YUYV,
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+ V4L2_PIX_FMT_YVYU,
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+ V4L2_PIX_FMT_NV12M,
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+ V4L2_PIX_FMT_NV21M,
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+ V4L2_PIX_FMT_NV16M,
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+ V4L2_PIX_FMT_NV61M,
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+};
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+
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+static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
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+{
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+ struct rcar_du_vsp_plane_state *state =
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+ to_rcar_vsp_plane_state(plane->plane.state);
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+ struct drm_framebuffer *fb = plane->plane.state->fb;
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+ struct drm_gem_cma_object *gem;
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+ struct v4l2_rect src;
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+ struct v4l2_rect dst;
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+ dma_addr_t paddr[2] = { 0, };
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+ u32 pixelformat = 0;
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+ unsigned int i;
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+
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+ src.left = state->state.src_x >> 16;
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+ src.top = state->state.src_y >> 16;
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+ src.width = state->state.src_w >> 16;
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+ src.height = state->state.src_h >> 16;
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+
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+ dst.left = state->state.crtc_x;
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+ dst.top = state->state.crtc_y;
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+ dst.width = state->state.crtc_w;
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+ dst.height = state->state.crtc_h;
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+
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+ gem = drm_fb_cma_get_gem_obj(fb, 0);
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+ paddr[0] = gem->paddr + fb->offsets[0];
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+
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+ if (state->format->planes == 2) {
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+ gem = drm_fb_cma_get_gem_obj(fb, 1);
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+ paddr[1] = gem->paddr + fb->offsets[1];
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+ }
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+
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+ for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
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+ if (formats_kms[i] == state->format->fourcc) {
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+ pixelformat = formats_v4l2[i];
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+ break;
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+ }
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+ }
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+
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+ WARN_ON(!pixelformat);
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+
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+ vsp1_du_atomic_update(plane->vsp->vsp, plane->index, pixelformat,
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+ fb->pitches[0], paddr, &src, &dst);
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+}
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+
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+static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
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+ struct drm_plane_state *state)
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+{
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+ struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
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+ struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
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+ struct rcar_du_device *rcdu = rplane->vsp->dev;
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+
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+ if (!state->fb || !state->crtc) {
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+ rstate->format = NULL;
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+ return 0;
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+ }
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+
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+ if (state->src_w >> 16 != state->crtc_w ||
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+ state->src_h >> 16 != state->crtc_h) {
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+ dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
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+ return -EINVAL;
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+ }
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+
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+ rstate->format = rcar_du_format_info(state->fb->pixel_format);
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+ if (rstate->format == NULL) {
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+ dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
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+ state->fb->pixel_format);
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+ return -EINVAL;
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+ }
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+
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+ return 0;
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+}
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+
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+static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
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+ struct drm_plane_state *old_state)
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+{
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+ struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
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+
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+ if (plane->state->crtc)
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+ rcar_du_vsp_plane_setup(rplane);
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+ else
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+ vsp1_du_atomic_update(rplane->vsp->vsp, rplane->index, 0, 0, 0,
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+ NULL, NULL);
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+}
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+
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+static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
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+ .atomic_check = rcar_du_vsp_plane_atomic_check,
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+ .atomic_update = rcar_du_vsp_plane_atomic_update,
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+};
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+
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+static struct drm_plane_state *
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+rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
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+{
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+ struct rcar_du_vsp_plane_state *state;
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+ struct rcar_du_vsp_plane_state *copy;
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+
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+ if (WARN_ON(!plane->state))
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+ return NULL;
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+
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+ state = to_rcar_vsp_plane_state(plane->state);
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+ copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
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+ if (copy == NULL)
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+ return NULL;
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+
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+ __drm_atomic_helper_plane_duplicate_state(plane, ©->state);
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+
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+ return ©->state;
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+}
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+
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+static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
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+ struct drm_plane_state *state)
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+{
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+ __drm_atomic_helper_plane_destroy_state(plane, state);
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+ kfree(to_rcar_vsp_plane_state(state));
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+}
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+
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+static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
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+{
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+ struct rcar_du_vsp_plane_state *state;
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+
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+ if (plane->state) {
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+ rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
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+ plane->state = NULL;
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+ }
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+
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+ state = kzalloc(sizeof(*state), GFP_KERNEL);
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+ if (state == NULL)
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+ return;
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+
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+ state->alpha = 255;
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+
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+ plane->state = &state->state;
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+ plane->state->plane = plane;
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+}
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+
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+static int rcar_du_vsp_plane_atomic_set_property(struct drm_plane *plane,
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+ struct drm_plane_state *state, struct drm_property *property,
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+ uint64_t val)
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+{
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+ struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
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+ struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
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+
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+ if (property == rcdu->props.alpha)
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+ rstate->alpha = val;
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+ else
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+static int rcar_du_vsp_plane_atomic_get_property(struct drm_plane *plane,
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+ const struct drm_plane_state *state, struct drm_property *property,
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+ uint64_t *val)
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+{
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+ const struct rcar_du_vsp_plane_state *rstate =
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+ container_of(state, const struct rcar_du_vsp_plane_state, state);
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+ struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
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+
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+ if (property == rcdu->props.alpha)
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+ *val = rstate->alpha;
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+ else
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
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+ .update_plane = drm_atomic_helper_update_plane,
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+ .disable_plane = drm_atomic_helper_disable_plane,
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+ .reset = rcar_du_vsp_plane_reset,
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+ .set_property = drm_atomic_helper_plane_set_property,
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+ .destroy = drm_plane_cleanup,
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+ .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
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+ .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
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+ .atomic_set_property = rcar_du_vsp_plane_atomic_set_property,
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+ .atomic_get_property = rcar_du_vsp_plane_atomic_get_property,
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+};
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+
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+int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
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+{
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+ struct rcar_du_device *rcdu = vsp->dev;
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+ struct platform_device *pdev;
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+ struct device_node *np;
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+ unsigned int i;
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+ int ret;
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+
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+ /* Find the VSP device and initialize it. */
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+ np = of_parse_phandle(rcdu->dev->of_node, "vsps", vsp->index);
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+ if (!np) {
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+ dev_err(rcdu->dev, "vsps node not found\n");
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+ return -ENXIO;
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+ }
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+
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+ pdev = of_find_device_by_node(np);
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+ of_node_put(np);
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+ if (!pdev)
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+ return -ENXIO;
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+
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+ vsp->vsp = &pdev->dev;
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+
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+ ret = vsp1_du_init(vsp->vsp);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
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+ * 4 RPFs. Hardcode the number of planes to 4 as Gen3 isn't supported
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+ * yet.
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+ */
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+ vsp->num_planes = 4;
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+
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+ vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
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+ sizeof(*vsp->planes), GFP_KERNEL);
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+ if (!vsp->planes)
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+ return -ENOMEM;
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+
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+ for (i = 0; i < vsp->num_planes; ++i) {
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+ enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY
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+ : DRM_PLANE_TYPE_PRIMARY;
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+ struct rcar_du_vsp_plane *plane = &vsp->planes[i];
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+
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+ plane->vsp = vsp;
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+ plane->index = i;
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+
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+ ret = drm_universal_plane_init(rcdu->ddev, &plane->plane,
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+ 1 << vsp->index,
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+ &rcar_du_vsp_plane_funcs,
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+ formats_kms,
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+ ARRAY_SIZE(formats_kms), type,
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+ NULL);
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+ if (ret < 0)
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+ return ret;
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+
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+ drm_plane_helper_add(&plane->plane,
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+ &rcar_du_vsp_plane_helper_funcs);
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+
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+ if (type == DRM_PLANE_TYPE_PRIMARY)
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+ continue;
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+
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+ drm_object_attach_property(&plane->plane.base,
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+ rcdu->props.alpha, 255);
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+ }
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+
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+ return 0;
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+}
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Laurent Pinchart