FreeBSD/Linux Kernel Cross Reference
sys/arm/nvidia/drm2/tegra_drm.h

     /*-
      * Copyright 1992-2015 Michal Meloun
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    #ifndef _TEGRA_DRM_H_
    #define _TEGRA_DRM_H_
    
    #include <dev/gpio/gpiobusvar.h>
    
    struct tegra_bo {
            struct drm_gem_object   gem_obj;
            /* mapped memory buffer */
            vm_paddr_t              pbase;
            vm_offset_t             vbase;
            size_t                  npages;
            vm_page_t               *m;
            vm_object_t             cdev_pager;
    };
    
    struct tegra_plane {
            struct drm_plane        drm_plane;
            int                     index;          /* Window index */
    };
    
    struct tegra_fb {
            struct drm_framebuffer  drm_fb;
            struct drm_fb_helper    fb_helper;
            struct tegra_bo         **planes;       /* Attached planes */
            int                     nplanes;
    
            /* Surface and display geometry */
            bool                    block_linear;   /* Surface_kind */
            uint32_t                block_height;
            int                     rotation;       /* In degrees */
            bool                    flip_x;         /* Inverted X-axis */
            bool                    flip_y;         /* Inverted Y-axis */
    };
    
    struct tegra_crtc {
            struct drm_crtc         drm_crtc;
            device_t                dev;
            int                     nvidia_head;
            vm_paddr_t              cursor_pbase;   /* Cursor buffer */
            void                    *cursor_vbase;
    };
    
    struct tegra_drm_encoder {
            device_t                dev;
    
            void                    *panel;         /* XXX For LVDS panel */
            device_t                ddc;
            struct edid             *edid;
    
            gpio_pin_t              gpio_hpd;
    
            struct drm_encoder      encoder;
            struct drm_connector    connector;
            int                     (*setup_clock)(struct tegra_drm_encoder *output,
                                        clk_t clk, uint64_t pclk);
    };
    
    struct tegra_drm {
            struct drm_device       drm_dev;
            struct tegra_fb         *fb;            /* Prime framebuffer */
            int                     pitch_align;
    };
    
    /* tegra_drm_subr.c */
    int tegra_drm_encoder_attach(struct tegra_drm_encoder *output, phandle_t node);
    int tegra_drm_encoder_init(struct tegra_drm_encoder *output,
        struct tegra_drm *drm);
    int tegra_drm_encoder_exit(struct tegra_drm_encoder *output,
        struct tegra_drm *drm);
    enum drm_connector_status tegra_drm_connector_detect(
        struct drm_connector *connector, bool force);
    int tegra_drm_connector_get_modes(struct drm_connector *connector);
   struct drm_encoder *tegra_drm_connector_best_encoder(
       struct drm_connector *connector);
   
   /* tegra_dc.c */
   void tegra_dc_cancel_page_flip(struct drm_crtc *drm_crtc,
       struct drm_file *file);
   void tegra_dc_enable_vblank(struct drm_crtc *drm_crtc);
   void tegra_dc_disable_vblank(struct drm_crtc *drm_crtc);
   int tegra_dc_get_pipe(struct drm_crtc *drm_crtc);
   
   /* tegra_fb.c */
   struct fb_info *tegra_drm_fb_getinfo(struct drm_device *drm);
   struct tegra_bo *tegra_fb_get_plane(struct tegra_fb *fb, int idx);
   int tegra_drm_fb_create(struct drm_device *drm, struct drm_file *file,
       struct drm_mode_fb_cmd2 *cmd, struct drm_framebuffer **fb_res);
   int tegra_drm_fb_init(struct drm_device *drm);
   void tegra_drm_fb_destroy(struct drm_device *drm);
   
   /* tegra_bo.c */
   struct tegra_bo;
   int tegra_bo_create(struct drm_device *drm, size_t size,
       struct tegra_bo **res_bo);
   void tegra_bo_driver_register(struct drm_driver *drm_drv);
   
   #endif /* _TEGRA_DRM_H_ */

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