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