![Jean-Jacques Hiblot](/assets/img/avatar_default.png)
Add the following properties for planes: * alpha * pixel blend mode. Only "Pre-multiplied" and "Coverage" are supported Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190711135219.23402-1-jjhiblot@ti.com
305 lines
7.9 KiB
C
305 lines
7.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* Author: Rob Clark <rob.clark@linaro.org>
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*/
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_plane_helper.h>
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#include "omap_dmm_tiler.h"
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#include "omap_drv.h"
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/*
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* plane funcs
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*/
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#define to_omap_plane(x) container_of(x, struct omap_plane, base)
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struct omap_plane {
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struct drm_plane base;
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enum omap_plane_id id;
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const char *name;
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};
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static int omap_plane_prepare_fb(struct drm_plane *plane,
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struct drm_plane_state *new_state)
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{
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if (!new_state->fb)
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return 0;
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return omap_framebuffer_pin(new_state->fb);
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}
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static void omap_plane_cleanup_fb(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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if (old_state->fb)
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omap_framebuffer_unpin(old_state->fb);
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}
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static void omap_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 omap_drm_private *priv = plane->dev->dev_private;
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struct omap_plane *omap_plane = to_omap_plane(plane);
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struct drm_plane_state *state = plane->state;
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struct omap_overlay_info info;
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int ret;
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DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
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memset(&info, 0, sizeof(info));
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info.rotation_type = OMAP_DSS_ROT_NONE;
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info.rotation = DRM_MODE_ROTATE_0;
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info.global_alpha = state->alpha >> 8;
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info.zorder = state->normalized_zpos;
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if (state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
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info.pre_mult_alpha = 1;
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else
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info.pre_mult_alpha = 0;
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/* update scanout: */
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omap_framebuffer_update_scanout(state->fb, state, &info);
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DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
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info.out_width, info.out_height,
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info.screen_width);
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DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
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&info.paddr, &info.p_uv_addr);
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/* and finally, update omapdss: */
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ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info,
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omap_crtc_timings(state->crtc), false,
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omap_crtc_channel(state->crtc));
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if (ret) {
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dev_err(plane->dev->dev, "Failed to setup plane %s\n",
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omap_plane->name);
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priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
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return;
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}
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priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true);
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}
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static void omap_plane_atomic_disable(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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struct omap_plane *omap_plane = to_omap_plane(plane);
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plane->state->rotation = DRM_MODE_ROTATE_0;
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plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
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? 0 : omap_plane->id;
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priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
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}
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static int omap_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 drm_crtc_state *crtc_state;
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if (!state->fb)
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return 0;
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/* crtc should only be NULL when disabling (i.e., !state->fb) */
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if (WARN_ON(!state->crtc))
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return 0;
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crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
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/* we should have a crtc state if the plane is attached to a crtc */
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if (WARN_ON(!crtc_state))
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return 0;
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if (!crtc_state->enable)
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return 0;
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if (state->crtc_x < 0 || state->crtc_y < 0)
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return -EINVAL;
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if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
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return -EINVAL;
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if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
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return -EINVAL;
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if (state->rotation != DRM_MODE_ROTATE_0 &&
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!omap_framebuffer_supports_rotation(state->fb))
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return -EINVAL;
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return 0;
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}
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static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
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.prepare_fb = omap_plane_prepare_fb,
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.cleanup_fb = omap_plane_cleanup_fb,
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.atomic_check = omap_plane_atomic_check,
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.atomic_update = omap_plane_atomic_update,
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.atomic_disable = omap_plane_atomic_disable,
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};
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static void omap_plane_destroy(struct drm_plane *plane)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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DBG("%s", omap_plane->name);
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drm_plane_cleanup(plane);
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kfree(omap_plane);
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}
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/* helper to install properties which are common to planes and crtcs */
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void omap_plane_install_properties(struct drm_plane *plane,
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struct drm_mode_object *obj)
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{
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struct drm_device *dev = plane->dev;
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struct omap_drm_private *priv = dev->dev_private;
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if (priv->has_dmm) {
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if (!plane->rotation_property)
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drm_plane_create_rotation_property(plane,
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DRM_MODE_ROTATE_0,
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DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
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DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
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DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
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/* Attach the rotation property also to the crtc object */
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if (plane->rotation_property && obj != &plane->base)
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drm_object_attach_property(obj, plane->rotation_property,
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DRM_MODE_ROTATE_0);
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}
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drm_object_attach_property(obj, priv->zorder_prop, 0);
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}
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static void omap_plane_reset(struct drm_plane *plane)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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drm_atomic_helper_plane_reset(plane);
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if (!plane->state)
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return;
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/*
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* Set the zpos default depending on whether we are a primary or overlay
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* plane.
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*/
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plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
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? 0 : omap_plane->id;
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}
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static int omap_plane_atomic_set_property(struct drm_plane *plane,
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struct drm_plane_state *state,
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struct drm_property *property,
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u64 val)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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if (property == priv->zorder_prop)
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state->zpos = val;
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else
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return -EINVAL;
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return 0;
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}
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static int omap_plane_atomic_get_property(struct drm_plane *plane,
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const struct drm_plane_state *state,
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struct drm_property *property,
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u64 *val)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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if (property == priv->zorder_prop)
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*val = state->zpos;
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else
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return -EINVAL;
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return 0;
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}
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static const struct drm_plane_funcs omap_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 = omap_plane_reset,
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.destroy = omap_plane_destroy,
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.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
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.atomic_set_property = omap_plane_atomic_set_property,
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.atomic_get_property = omap_plane_atomic_get_property,
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};
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static const char *plane_id_to_name[] = {
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[OMAP_DSS_GFX] = "gfx",
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[OMAP_DSS_VIDEO1] = "vid1",
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[OMAP_DSS_VIDEO2] = "vid2",
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[OMAP_DSS_VIDEO3] = "vid3",
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};
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static const enum omap_plane_id plane_idx_to_id[] = {
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OMAP_DSS_GFX,
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OMAP_DSS_VIDEO1,
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OMAP_DSS_VIDEO2,
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OMAP_DSS_VIDEO3,
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};
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/* initialize plane */
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struct drm_plane *omap_plane_init(struct drm_device *dev,
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int idx, enum drm_plane_type type,
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u32 possible_crtcs)
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{
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struct omap_drm_private *priv = dev->dev_private;
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unsigned int num_planes = priv->dispc_ops->get_num_ovls(priv->dispc);
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struct drm_plane *plane;
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struct omap_plane *omap_plane;
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enum omap_plane_id id;
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int ret;
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u32 nformats;
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const u32 *formats;
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if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
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return ERR_PTR(-EINVAL);
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id = plane_idx_to_id[idx];
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DBG("%s: type=%d", plane_id_to_name[id], type);
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omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
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if (!omap_plane)
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return ERR_PTR(-ENOMEM);
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formats = priv->dispc_ops->ovl_get_color_modes(priv->dispc, id);
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for (nformats = 0; formats[nformats]; ++nformats)
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;
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omap_plane->id = id;
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omap_plane->name = plane_id_to_name[id];
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plane = &omap_plane->base;
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ret = drm_universal_plane_init(dev, plane, possible_crtcs,
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&omap_plane_funcs, formats,
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nformats, NULL, type, NULL);
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if (ret < 0)
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goto error;
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drm_plane_helper_add(plane, &omap_plane_helper_funcs);
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omap_plane_install_properties(plane, &plane->base);
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drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
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drm_plane_create_alpha_property(plane);
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drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI) |
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BIT(DRM_MODE_BLEND_COVERAGE));
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return plane;
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error:
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dev_err(dev->dev, "%s(): could not create plane: %s\n",
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__func__, plane_id_to_name[id]);
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kfree(omap_plane);
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return NULL;
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}
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