drivers/gpu/drm/sti/sti_plane.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) STMicroelectronics SA 2014
   4  * Author: Benjamin Gaignard <[email protected]> for STMicroelectronics.
   5  */
   6
   7 #ifndef _STI_PLANE_H_
   8 #define _STI_PLANE_H_
   9
  10 #include <drm/drm_atomic_helper.h>
  11
  12 #define to_sti_plane(x) container_of(x, struct sti_plane, drm_plane)
  13
  14 #define STI_PLANE_TYPE_SHIFT 8
  15 #define STI_PLANE_TYPE_MASK (~((1 << STI_PLANE_TYPE_SHIFT) - 1))
  16
  17 enum sti_plane_type {
  18         STI_GDP = 1 << STI_PLANE_TYPE_SHIFT,
  19         STI_VDP = 2 << STI_PLANE_TYPE_SHIFT,
  20         STI_CUR = 3 << STI_PLANE_TYPE_SHIFT,
  21         STI_BCK = 4 << STI_PLANE_TYPE_SHIFT
  22 };
  23
  24 enum sti_plane_id_of_type {
  25         STI_ID_0 = 0,
  26         STI_ID_1 = 1,
  27         STI_ID_2 = 2,
  28         STI_ID_3 = 3
  29 };
  30
  31 enum sti_plane_desc {
  32         STI_GDP_0       = STI_GDP | STI_ID_0,
  33         STI_GDP_1       = STI_GDP | STI_ID_1,
  34         STI_GDP_2       = STI_GDP | STI_ID_2,
  35         STI_GDP_3       = STI_GDP | STI_ID_3,
  36         STI_HQVDP_0     = STI_VDP | STI_ID_0,
  37         STI_CURSOR      = STI_CUR,
  38         STI_BACK        = STI_BCK
  39 };
  40
  41 enum sti_plane_status {
  42         STI_PLANE_READY,
  43         STI_PLANE_UPDATED,
  44         STI_PLANE_DISABLING,
  45         STI_PLANE_FLUSHING,
  46         STI_PLANE_DISABLED,
  47 };
  48
  49 #define FPS_LENGTH 128
  50 struct sti_fps_info {
  51         bool output;
  52         unsigned int curr_frame_counter;
  53         unsigned int last_frame_counter;
  54         unsigned int curr_field_counter;
  55         unsigned int last_field_counter;
  56         ktime_t      last_timestamp;
  57         char fps_str[FPS_LENGTH];
  58         char fips_str[FPS_LENGTH];
  59 };
  60
  61 /**
  62  * STI plane structure
  63  *
  64  * @plane:              drm plane it is bound to (if any)
  65  * @desc:               plane type & id
  66  * @status:             to know the status of the plane
  67  * @fps_info:           frame per second info
  68  */
  69 struct sti_plane {
  70         struct drm_plane drm_plane;
  71         enum sti_plane_desc desc;
  72         enum sti_plane_status status;
  73         struct sti_fps_info fps_info;
  74 };
  75
  76 const char *sti_plane_to_str(struct sti_plane *plane);
  77 void sti_plane_update_fps(struct sti_plane *plane,
  78                           bool new_frame,
  79                           bool new_field);
  80
  81 void sti_plane_init_property(struct sti_plane *plane,
  82                              enum drm_plane_type type);
  83 #endif