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 DRMFramebuffer* fb_info; 65 } drm_plane_props_t; 66 67 class KMSDisplay { 68 public: KMSDisplay()69 KMSDisplay() : 70 card(NULL), 71 con(NULL), 72 crtc(NULL), 73 mode() {} 74 75 kms::Card* card; 76 kms::Connector* con; 77 kms::Crtc* crtc; 78 kms::Videomode mode; 79 }; 80 81 class HWCDisplay 82 { 83 public: 84 HWCDisplay(enum disp_role role); ~HWCDisplay()85 ~HWCDisplay(){}; 86 87 void setup_composition_pipes(); 88 89 int update_display(drm_plane_props_t* planeProp); 90 91 std::vector<display_config_t> configs; 92 uint32_t active_config; 93 94 enum disp_role role; 95 96 drm_plane_props_t planeProps[DSS_AVAILABLE_PIPES]; 97 98 KMSDisplay disp_link; 99 100 const hwc_procs_t* cb_procs; 101 102 bool is_dummy; 103 104 int set_vsync_state(bool state); 105 void blank(int blank); 106 int get_display_configs(uint32_t* configs, size_t* numConfigs); 107 int get_display_attributes(uint32_t cfg, const uint32_t* attributes, int32_t* values); 108 109 static void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void* data); 110 static void vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void* data); 111 112 private: 113 std::vector<DRMFramebuffer*> pending_fb_infos; 114 std::vector<DRMFramebuffer*> current_fb_infos; 115 116 bool vsync_on; 117 bool blanked; 118 119 std::mutex mutex; 120 std::condition_variable cond_flip; 121 volatile bool is_flip_pending; 122 }; 123