drivers/gpu/drm/rockchip/rockchip_drm_drv.h

   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_atomic_helper.h>
  22 #include <drm/drm_gem.h>
  23
  24 #include <linux/module.h>
  25 #include <linux/component.h>
  26
  27 #define ROCKCHIP_MAX_FB_BUFFER  3
  28 #define ROCKCHIP_MAX_CONNECTOR  2
  29 #define ROCKCHIP_MAX_CRTC       2
  30
  31 struct drm_device;
  32 struct drm_connector;
  33
  34 /*
  35  * Rockchip drm private crtc funcs.
  36  * @enable_vblank: enable crtc vblank irq.
  37  * @disable_vblank: disable crtc vblank irq.
  38  */
  39 struct rockchip_crtc_funcs {
  40         int (*enable_vblank)(struct drm_crtc *crtc);
  41         void (*disable_vblank)(struct drm_crtc *crtc);
  42         void (*wait_for_update)(struct drm_crtc *crtc);
  43         void (*cancel_pending_vblank)(struct drm_crtc *crtc, struct drm_file *file_priv);
  44 };
  45
  46 struct rockchip_atomic_commit {
  47         struct work_struct      work;
  48         struct drm_atomic_state *state;
  49         struct drm_device *dev;
  50         struct mutex lock;
  51 };
  52
  53 /*
  54  * Rockchip drm private structure.
  55  *
  56  * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
  57  * @num_pipe: number of pipes for this device.
  58  */
  59 struct rockchip_drm_private {
  60         struct drm_fb_helper fbdev_helper;
  61         struct drm_gem_object *fbdev_bo;
  62         const struct rockchip_crtc_funcs *crtc_funcs[ROCKCHIP_MAX_CRTC];
  63
  64         struct rockchip_atomic_commit commit;
  65 };
  66
  67 void rockchip_drm_atomic_work(struct work_struct *work);
  68 int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
  69                                  const struct rockchip_crtc_funcs *crtc_funcs);
  70 void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc);
  71 int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type,
  72                                   int out_mode);
  73 int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
  74                                    struct device *dev);
  75 void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
  76                                     struct device *dev);
  77 #endif /* _ROCKCHIP_DRM_DRV_H_ */