1 /*
2  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
3  * Author:Mark Yao <mark.yao@rock-chips.com>
4  *
5  * based on exynos_drm_drv.h
6  *
7  * This software is licensed under the terms of the GNU General Public
8  * License version 2, as published by the Free Software Foundation, and
9  * may be copied, distributed, and modified under those terms.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  */
16 
17 #ifndef _ROCKCHIP_DRM_DRV_H
18 #define _ROCKCHIP_DRM_DRV_H
19 
20 #include <drm/drm_fb_helper.h>
21 #include <drm/drm_gem.h>
22 
23 #include <linux/module.h>
24 #include <linux/component.h>
25 
26 #define ROCKCHIP_MAX_FB_BUFFER	3
27 #define ROCKCHIP_MAX_CONNECTOR	2
28 #define ROCKCHIP_MAX_CRTC	2
29 
30 struct drm_device;
31 struct drm_connector;
32 
33 /*
34  * Rockchip drm private crtc funcs.
35  * @enable_vblank: enable crtc vblank irq.
36  * @disable_vblank: disable crtc vblank irq.
37  */
38 struct rockchip_crtc_funcs {
39 	int (*enable_vblank)(struct drm_crtc *crtc);
40 	void (*disable_vblank)(struct drm_crtc *crtc);
41 };
42 
43 /*
44  * Rockchip drm private structure.
45  *
46  * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
47  * @num_pipe: number of pipes for this device.
48  */
49 struct rockchip_drm_private {
50 	struct drm_fb_helper fbdev_helper;
51 	struct drm_gem_object *fbdev_bo;
52 	const struct rockchip_crtc_funcs *crtc_funcs[ROCKCHIP_MAX_CRTC];
53 };
54 
55 int rockchip_register_crtc_funcs(struct drm_device *dev,
56 				 const struct rockchip_crtc_funcs *crtc_funcs,
57 				 int pipe);
58 void rockchip_unregister_crtc_funcs(struct drm_device *dev, int pipe);
59 int rockchip_drm_encoder_get_mux_id(struct device_node *node,
60 				    struct drm_encoder *encoder);
61 int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type,
62 				  int out_mode);
63 int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
64 				   struct device *dev);
65 void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
66 				    struct device *dev);
67 
68 #endif /* _ROCKCHIP_DRM_DRV_H_ */
69