85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
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* Author: Benoit Parrot <bparrot@ti.com>
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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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* overlay funcs
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*/
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static const char * const overlay_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 void omap_overlay_destroy(struct omap_hw_overlay *overlay)
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{
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kfree(overlay);
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}
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static struct omap_hw_overlay *omap_overlay_init(enum omap_plane_id overlay_id,
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enum omap_overlay_caps caps)
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{
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struct omap_hw_overlay *overlay;
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overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
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if (!overlay)
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return ERR_PTR(-ENOMEM);
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overlay->name = overlay_id_to_name[overlay_id];
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overlay->id = overlay_id;
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overlay->caps = caps;
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return overlay;
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}
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int omap_hwoverlays_init(struct omap_drm_private *priv)
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{
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static const enum omap_plane_id hw_plane_ids[] = {
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OMAP_DSS_GFX, OMAP_DSS_VIDEO1,
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OMAP_DSS_VIDEO2, OMAP_DSS_VIDEO3,
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};
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u32 num_overlays = dispc_get_num_ovls(priv->dispc);
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enum omap_overlay_caps caps;
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int i, ret;
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for (i = 0; i < num_overlays; i++) {
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struct omap_hw_overlay *overlay;
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caps = dispc_ovl_get_caps(priv->dispc, hw_plane_ids[i]);
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overlay = omap_overlay_init(hw_plane_ids[i], caps);
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if (IS_ERR(overlay)) {
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ret = PTR_ERR(overlay);
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dev_err(priv->dev, "failed to construct overlay for %s (%d)\n",
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overlay_id_to_name[i], ret);
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omap_hwoverlays_destroy(priv);
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return ret;
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}
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overlay->idx = priv->num_ovls;
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priv->overlays[priv->num_ovls++] = overlay;
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}
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return 0;
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}
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void omap_hwoverlays_destroy(struct omap_drm_private *priv)
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{
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int i;
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for (i = 0; i < priv->num_ovls; i++) {
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omap_overlay_destroy(priv->overlays[i]);
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priv->overlays[i] = NULL;
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}
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priv->num_ovls = 0;
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}
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