drivers/staging/gma500/mdfld_dsi_dbi_dpu.h

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  * jim liu <jim.liu@intel.com>
  25  * Jackie Li<yaodong.li@intel.com>
  26  */
  27
  28 #ifndef __MDFLD_DSI_DBI_DPU_H__
  29 #define __MDFLD_DSI_DBI_DPU_H__
  30
  31 #include "mdfld_dsi_dbi.h"
  32
  33 typedef enum {
  34         MDFLD_PLANEA,
  35         MDFLD_PLANEC,
  36         MDFLD_CURSORA,
  37         MDFLD_CURSORC,
  38         MDFLD_OVERLAYA,
  39         MDFLD_OVERLAYC,
  40         MDFLD_PLANE_NUM,
  41 } mdfld_plane_t;
  42
  43 #define MDFLD_PIPEA_PLANE_MASK  0x15
  44 #define MDFLD_PIPEC_PLANE_MASK  0x2A
  45
  46 struct mdfld_cursor_info {
  47         int x, y;
  48         int size;
  49 };
  50
  51 #define MDFLD_CURSOR_SIZE       64
  52
  53 /*
  54  * enter DSR mode if screen has no update for 2 frames.
  55  */
  56 #define MDFLD_MAX_IDLE_COUNT    2
  57
  58 struct mdfld_dbi_dpu_info {
  59         struct drm_device *dev;
  60         /* Lock */
  61         spinlock_t dpu_update_lock;
  62
  63         /* Cursor postion */
  64         struct mdfld_cursor_info cursors[2];
  65
  66         /* Damaged area for each plane */
  67         struct psb_drm_dpu_rect damaged_rects[MDFLD_PLANE_NUM];
  68
  69         /* Final damaged area */
  70         struct psb_drm_dpu_rect damage_pipea;
  71         struct psb_drm_dpu_rect damage_pipec;
  72
  73         /* Pending */
  74         u32 pending;
  75
  76         /* DPU timer */
  77         struct timer_list dpu_timer;
  78         spinlock_t dpu_timer_lock;
  79
  80         /* DPU idle count */
  81         u32 idle_count;
  82
  83         /* DSI outputs */
  84         struct mdfld_dsi_dbi_output *dbi_outputs[2];
  85         int dbi_output_num;
  86 };
  87
  88 static inline int mdfld_dpu_region_extent(struct psb_drm_dpu_rect *origin,
  89                          struct psb_drm_dpu_rect *rect)
  90 {
  91         int x1, y1, x2, y2;
  92
  93         x1 = origin->x + origin->width;
  94         y1 = origin->y + origin->height;
  95
  96         x2 = rect->x + rect->width;
  97         y2 = rect->y + rect->height;
  98
  99         origin->x = min(origin->x, rect->x);
 100         origin->y = min(origin->y, rect->y);
 101         origin->width = max(x1, x2) - origin->x;
 102         origin->height = max(y1, y2) - origin->y;
 103
 104         return 0;
 105 }
 106
 107 static inline void mdfld_check_boundary(struct mdfld_dbi_dpu_info *dpu_info,
 108                                 struct psb_drm_dpu_rect *rect)
 109 {
 110         if (rect->x < 0)
 111                 rect->x = 0;
 112         if (rect->y < 0)
 113                 rect->y = 0;
 114
 115         if (rect->x + rect->width > 864)
 116                 rect->width = 864 - rect->x;
 117         if (rect->y + rect->height > 480)
 118                 rect->height = 480 - rect->height;
 119
 120         if (!rect->width)
 121                 rect->width = 1;
 122         if (!rect->height)
 123                 rect->height = 1;
 124 }
 125
 126 static inline void mdfld_dpu_init_damage(struct mdfld_dbi_dpu_info *dpu_info,
 127                                 int pipe)
 128 {
 129         struct psb_drm_dpu_rect *rect;
 130
 131         if (pipe == 0)
 132                 rect = &dpu_info->damage_pipea;
 133         else
 134                 rect = &dpu_info->damage_pipec;
 135
 136         rect->x = 864;
 137         rect->y = 480;
 138         rect->width = -864;
 139         rect->height = -480;
 140 }
 141
 142 extern int mdfld_dsi_dbi_dsr_off(struct drm_device *dev,
 143                                 struct psb_drm_dpu_rect *rect);
 144 extern int mdfld_dbi_dpu_report_damage(struct drm_device *dev,
 145                                 mdfld_plane_t plane,
 146                                 struct psb_drm_dpu_rect *rect);
 147 extern int mdfld_dbi_dpu_report_fullscreen_damage(struct drm_device *dev);
 148 extern int mdfld_dpu_exit_dsr(struct drm_device *dev);
 149 extern void mdfld_dbi_dpu_timer_start(struct mdfld_dbi_dpu_info *dpu_info);
 150 extern int mdfld_dbi_dpu_init(struct drm_device *dev);
 151 extern void mdfld_dbi_dpu_exit(struct drm_device *dev);
 152 extern void mdfld_dpu_update_panel(struct drm_device *dev);
 153
 154 #endif /*__MDFLD_DSI_DBI_DPU_H__*/