drivers/gpu/drm/sti/sti_plane.h

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