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/*
* Copyright (C) 2014 Traphandler
* Copyright (C) 2014 Free Electrons
* Copyright (C) 2014 Atmel
*
* Author: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
* Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DRM_ATMEL_HLCDC_H
#define DRM_ATMEL_HLCDC_H
#include <linux/clk.h>
#include <linux/irqdomain.h>
#include <linux/pwm.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_panel.h>
#include <drm/drm_plane_helper.h>
#include <drm/drmP.h>
#include "atmel_hlcdc_layer.h"
#define ATMEL_HLCDC_MAX_LAYERS 5
/**
* Atmel HLCDC Display Controller description structure.
*
* This structure describe the HLCDC IP capabilities and depends on the
* HLCDC IP version (or Atmel SoC family).
*
* @min_width: minimum width supported by the Display Controller
* @min_height: minimum height supported by the Display Controller
* @max_width: maximum width supported by the Display Controller
* @max_height: maximum height supported by the Display Controller
* @layers: a layer description table describing available layers
* @nlayers: layer description table size
*/
struct atmel_hlcdc_dc_desc {
int min_width;
int min_height;
int max_width;
int max_height;
const struct atmel_hlcdc_layer_desc *layers;
int nlayers;
};
/**
* Atmel HLCDC Plane properties.
*
* This structure stores plane property definitions.
*
* @alpha: alpha blending (or transparency) property
* @rotation: rotation property
*/
struct atmel_hlcdc_plane_properties {
struct drm_property *alpha;
};
/**
* Atmel HLCDC Plane.
*
* @base: base DRM plane structure
* @layer: HLCDC layer structure
* @properties: pointer to the property definitions structure
* @rotation: current rotation status
*/
struct atmel_hlcdc_plane {
struct drm_plane base;
struct atmel_hlcdc_layer layer;
struct atmel_hlcdc_plane_properties *properties;
};
static inline struct atmel_hlcdc_plane *
drm_plane_to_atmel_hlcdc_plane(struct drm_plane *p)
{
return container_of(p, struct atmel_hlcdc_plane, base);
}
static inline struct atmel_hlcdc_plane *
atmel_hlcdc_layer_to_plane(struct atmel_hlcdc_layer *l)
{
return container_of(l, struct atmel_hlcdc_plane, layer);
}
/**
* Atmel HLCDC Planes.
*
* This structure stores the instantiated HLCDC Planes and can be accessed by
* the HLCDC Display Controller or the HLCDC CRTC.
*
* @primary: primary plane
* @cursor: hardware cursor plane
* @overlays: overlay plane table
* @noverlays: number of overlay planes
*/
struct atmel_hlcdc_planes {
struct atmel_hlcdc_plane *primary;
struct atmel_hlcdc_plane *cursor;
struct atmel_hlcdc_plane **overlays;
int noverlays;
};
/**
* Atmel HLCDC Display Controller.
*
* @desc: HLCDC Display Controller description
* @hlcdc: pointer to the atmel_hlcdc structure provided by the MFD device
* @fbdev: framebuffer device attached to the Display Controller
* @crtc: CRTC provided by the display controller
* @planes: instantiated planes
* @layers: active HLCDC layer
* @wq: display controller workqueue
*/
struct atmel_hlcdc_dc {
const struct atmel_hlcdc_dc_desc *desc;
struct atmel_hlcdc *hlcdc;
struct drm_fbdev_cma *fbdev;
struct drm_crtc *crtc;
struct atmel_hlcdc_planes *planes;
struct atmel_hlcdc_layer *layers[ATMEL_HLCDC_MAX_LAYERS];
struct workqueue_struct *wq;
};
extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_formats;
extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_and_yuv_formats;
int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc,
struct drm_display_mode *mode);
struct atmel_hlcdc_planes *
atmel_hlcdc_create_planes(struct drm_device *dev);
int atmel_hlcdc_plane_prepare_disc_area(struct drm_crtc_state *c_state);
void atmel_hlcdc_crtc_irq(struct drm_crtc *c);
void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc,
struct drm_file *file);
void atmel_hlcdc_crtc_suspend(struct drm_crtc *crtc);
void atmel_hlcdc_crtc_resume(struct drm_crtc *crtc);
int atmel_hlcdc_crtc_create(struct drm_device *dev);
int atmel_hlcdc_create_outputs(struct drm_device *dev);
#endif /* DRM_ATMEL_HLCDC_H */
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