mirror of https://gitee.com/openkylin/linux.git
135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/*
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* Copyright (C) Icenowy Zheng <icenowy@aosc.io>
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*
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* Based on sun4i_layer.h, which is:
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* Copyright (C) 2015 Free Electrons
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* Copyright (C) 2015 NextThing Co
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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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 <drm/drmP.h>
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#include "sun8i_layer.h"
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#include "sun8i_mixer.h"
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struct sun8i_plane_desc {
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enum drm_plane_type type;
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const uint32_t *formats;
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uint32_t nformats;
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};
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static void sun8i_mixer_layer_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 sun8i_layer *layer = plane_to_sun8i_layer(plane);
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struct sun8i_mixer *mixer = layer->mixer;
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sun8i_mixer_layer_enable(mixer, layer->id, false);
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}
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static void sun8i_mixer_layer_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 sun8i_layer *layer = plane_to_sun8i_layer(plane);
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struct sun8i_mixer *mixer = layer->mixer;
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sun8i_mixer_update_layer_coord(mixer, layer->id, plane);
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sun8i_mixer_update_layer_formats(mixer, layer->id, plane);
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sun8i_mixer_update_layer_buffer(mixer, layer->id, plane);
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sun8i_mixer_layer_enable(mixer, layer->id, true);
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}
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static struct drm_plane_helper_funcs sun8i_mixer_layer_helper_funcs = {
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.atomic_disable = sun8i_mixer_layer_atomic_disable,
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.atomic_update = sun8i_mixer_layer_atomic_update,
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};
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static const struct drm_plane_funcs sun8i_mixer_layer_funcs = {
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.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
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.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
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.destroy = drm_plane_cleanup,
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.disable_plane = drm_atomic_helper_disable_plane,
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.reset = drm_atomic_helper_plane_reset,
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.update_plane = drm_atomic_helper_update_plane,
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};
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static const uint32_t sun8i_mixer_layer_formats[] = {
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DRM_FORMAT_RGB888,
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DRM_FORMAT_ARGB8888,
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DRM_FORMAT_XRGB8888,
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};
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static const struct sun8i_plane_desc sun8i_mixer_planes[] = {
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{
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.type = DRM_PLANE_TYPE_PRIMARY,
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.formats = sun8i_mixer_layer_formats,
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.nformats = ARRAY_SIZE(sun8i_mixer_layer_formats),
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},
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};
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static struct sun8i_layer *sun8i_layer_init_one(struct drm_device *drm,
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struct sun8i_mixer *mixer,
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const struct sun8i_plane_desc *plane)
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{
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struct sun8i_layer *layer;
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int ret;
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layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);
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if (!layer)
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return ERR_PTR(-ENOMEM);
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/* possible crtcs are set later */
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ret = drm_universal_plane_init(drm, &layer->plane, 0,
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&sun8i_mixer_layer_funcs,
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plane->formats, plane->nformats,
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plane->type, NULL);
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if (ret) {
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dev_err(drm->dev, "Couldn't initialize layer\n");
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return ERR_PTR(ret);
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}
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drm_plane_helper_add(&layer->plane,
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&sun8i_mixer_layer_helper_funcs);
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layer->mixer = mixer;
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return layer;
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}
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struct drm_plane **sun8i_layers_init(struct drm_device *drm,
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struct sunxi_engine *engine)
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{
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struct drm_plane **planes;
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struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
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int i;
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planes = devm_kcalloc(drm->dev, ARRAY_SIZE(sun8i_mixer_planes) + 1,
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sizeof(*planes), GFP_KERNEL);
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if (!planes)
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return ERR_PTR(-ENOMEM);
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for (i = 0; i < ARRAY_SIZE(sun8i_mixer_planes); i++) {
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const struct sun8i_plane_desc *plane = &sun8i_mixer_planes[i];
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struct sun8i_layer *layer;
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layer = sun8i_layer_init_one(drm, mixer, plane);
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if (IS_ERR(layer)) {
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dev_err(drm->dev, "Couldn't initialize %s plane\n",
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i ? "overlay" : "primary");
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return ERR_CAST(layer);
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};
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layer->id = i;
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planes[i] = &layer->plane;
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};
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return planes;
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}
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