LXR linux/drivers/gpu/drm/sti/sti

   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
  14extern 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
  21enum 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
  28enum 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
  35enum 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
  45enum 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
  54struct 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 */
  74struct 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
  82const char *sti_plane_to_str(struct sti_plane *plane);
  83void sti_plane_update_fps(struct sti_plane *plane,
  84                          bool new_frame,
  85                          bool new_field);
  86void sti_plane_init_property(struct sti_plane *plane,
  87                             enum drm_plane_type type);
  88#endif
  89