1 /* 2 * Copyright (C) Texas Instruments Incorporated - http://www.ti.com/ 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <condition_variable> 20 #include <mutex> 21 22 #include <cstdbool> 23 #include <cstdint> 24 25 #include <hardware/hwcomposer.h> 26 #include <kms++/kms++.h> 27 28 #include <xf86drm.h> 29 #include <xf86drmMode.h> 30 31 #include "drmfb.h" 32 33 #define MAX_DISPLAYS 4 34 #define DSS_AVAILABLE_PIPES 4 35 36 typedef struct display_config { 37 unsigned int xres; 38 unsigned int yres; 39 unsigned int fps; 40 unsigned int xdpi; 41 unsigned int ydpi; 42 } display_config_t; 43 44 enum disp_role { 45 DISP_ROLE_PRIMARY = 0, 46 DISP_ROLE_SECONDARY, 47 }; 48 49 typedef struct drm_plane_props { 50 hwc_layer_1_t* layer; 51 52 kms::Plane* plane; 53 uint64_t crtc_id; 54 55 uint64_t crtc_x; 56 uint64_t crtc_y; 57 uint64_t crtc_w; 58 uint64_t crtc_h; 59 uint64_t src_x; 60 uint64_t src_y; 61 uint64_t src_w; 62 uint64_t src_h; 63 64 uint64_t rotation; 65 uint64_t zorder; 66 uint64_t pre_mult_alpha; 67 68 DRMFramebuffer* fb_info; 69 } drm_plane_props_t; 70 71 class KMSDisplay { 72 public: KMSDisplay()73 KMSDisplay() : 74 card(NULL), 75 con(NULL), 76 crtc(NULL), 77 mode() {} 78 79 kms::Card* card; 80 kms::Connector* con; 81 kms::Crtc* crtc; 82 kms::Videomode mode; 83 }; 84 85 class HWCDisplay 86 { 87 public: 88 HWCDisplay(enum disp_role role); ~HWCDisplay()89 ~HWCDisplay(){}; 90 91 void setup_composition_pipes(); 92 93 int update_display(drm_plane_props_t* planeProp); 94 95 std::vector<display_config_t> configs; 96 uint32_t active_config; 97 98 enum disp_role role; 99 100 drm_plane_props_t planeProps[DSS_AVAILABLE_PIPES]; 101 102 KMSDisplay disp_link; 103 104 const hwc_procs_t* cb_procs; 105 106 bool is_dummy; 107 108 int set_vsync_state(bool state); 109 void blank(int blank); 110 int get_display_configs(uint32_t* configs, size_t* numConfigs); 111 int get_display_attributes(uint32_t cfg, const uint32_t* attributes, int32_t* values); 112 113 static void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void* data); 114 static void vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void* data); 115 116 private: 117 std::vector<DRMFramebuffer*> pending_fb_infos; 118 std::vector<DRMFramebuffer*> current_fb_infos; 119 120 bool vsync_on; 121 bool blanked; 122 123 std::mutex mutex; 124 std::condition_variable cond_flip; 125 volatile bool is_flip_pending; 126 }; 127