80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019-2022 Bootlin
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* Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
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*/
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#include <linux/types.h>
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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_crtc_helper.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_gem_dma_helper.h>
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#include <drm/drm_gem_framebuffer_helper.h>
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#include <drm/drm_mode_config.h>
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#include <drm/drm_panel.h>
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#include <drm/drm_print.h>
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#include <drm/drm_probe_helper.h>
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#include <drm/drm_vblank.h>
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#include "logicvc_drm.h"
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#include "logicvc_interface.h"
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#include "logicvc_layer.h"
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#include "logicvc_mode.h"
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static const struct drm_mode_config_funcs logicvc_mode_config_funcs = {
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.fb_create = drm_gem_fb_create,
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.output_poll_changed = drm_fb_helper_output_poll_changed,
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.atomic_check = drm_atomic_helper_check,
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.atomic_commit = drm_atomic_helper_commit,
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};
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int logicvc_mode_init(struct logicvc_drm *logicvc)
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{
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struct drm_device *drm_dev = &logicvc->drm_dev;
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struct drm_mode_config *mode_config = &drm_dev->mode_config;
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struct logicvc_layer *layer_primary;
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uint32_t preferred_depth;
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int ret;
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ret = drm_vblank_init(drm_dev, mode_config->num_crtc);
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if (ret) {
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drm_err(drm_dev, "Failed to initialize vblank\n");
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return ret;
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}
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layer_primary = logicvc_layer_get_primary(logicvc);
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if (!layer_primary) {
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drm_err(drm_dev, "Failed to get primary layer\n");
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return -EINVAL;
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}
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preferred_depth = layer_primary->formats->depth;
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/* DRM counts alpha in depth, our driver doesn't. */
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if (layer_primary->formats->alpha)
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preferred_depth += 8;
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mode_config->min_width = 64;
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mode_config->max_width = 2048;
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mode_config->min_height = 1;
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mode_config->max_height = 2048;
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mode_config->preferred_depth = preferred_depth;
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mode_config->funcs = &logicvc_mode_config_funcs;
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drm_mode_config_reset(drm_dev);
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drm_kms_helper_poll_init(drm_dev);
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return 0;
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}
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void logicvc_mode_fini(struct logicvc_drm *logicvc)
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{
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struct drm_device *drm_dev = &logicvc->drm_dev;
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drm_kms_helper_poll_fini(drm_dev);
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}
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