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/*
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only 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.
*
*/
#ifndef _DISPLAY_MANAGER_H_
#define _DISPLAY_MANAGER_H_
struct display_manager {
struct drm_device *drm_dev;
struct platform_device *pdev;
const char *name;
struct mutex lock;
u32 display_count;
void **displays;
u32 dsi_display_count;
void **dsi_displays;
u32 hdmi_display_count;
void **hdmi_displays;
u32 dp_display_count;
void **dp_displays;
u32 wb_display_count;
void **wb_displays;
/* Debug fs */
struct dentry *debugfs_root;
};
/**
* display_manager_get_count() - returns the number of display present
* @disp_m: Handle to Display manager.
*
* Returns the sum total of DSI, HDMI and DP display present on the board.
*
* Return: error code (< 0) in case of error or number of display ( >= 0)
*/
int display_manager_get_count(struct display_manager *disp_m);
/**
* display_manager_get_info_by_index() - returns display information
* @disp_m: Handle to Display manager.
* @display_index: display index (valid indices are 0 to (display_count - 1).
* @info: Structure where display info is copied.
*
* Return: error code.
*/
int display_manager_get_info_by_index(struct display_manager *disp_m,
u32 display_index,
struct msm_display_info *info);
/**
* display_manager_drm_init_by_index() - initialize drm objects for display
* @disp_m: Handle to Display manager.
* @display_index: display index (valid indices are 0 to (display_count - 1).
* @encoder: Pointer to encoder object to which display is attached.
*
* Return: error code.
*/
int display_manager_drm_init_by_index(struct display_manager *disp_m,
u32 display_index,
struct drm_encoder *encoder);
/**
* display_manager_drm_deinit_by_index() - detroys drm objects
* @disp_m: Handle to Display manager.
* @display_index: display index (valid indices are 0 to (display_count - 1).
*
* Return: error code.
*/
int display_manager_drm_deinit_by_index(struct display_manager *disp_m,
u32 display_index);
/**
* display_manager_register() - register display interface drivers
*/
void display_manager_register(void);
/**
* display_manager_unregister() - unregisters display interface drivers
*/
void display_manager_unregister(void);
#endif /* _DISPLAY_MANAGER_H_ */
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