1 /* 2 * Copyright (c) 2017, The Linux Foundation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef __HW_DEVICE_DRM_H__ 31 #define __HW_DEVICE_DRM_H__ 32 33 #include <drm_interface.h> 34 #include <errno.h> 35 #include <pthread.h> 36 #include <xf86drmMode.h> 37 #include <string> 38 #include <unordered_map> 39 #include <vector> 40 41 #include "hw_interface.h" 42 #include "hw_scale_drm.h" 43 44 #define IOCTL_LOGE(ioctl, type) \ 45 DLOGE("ioctl %s, device = %d errno = %d, desc = %s", #ioctl, type, errno, strerror(errno)) 46 47 namespace sdm { 48 class HWInfoInterface; 49 50 class HWDeviceDRM : public HWInterface { 51 public: 52 explicit HWDeviceDRM(BufferSyncHandler *buffer_sync_handler, BufferAllocator *buffer_allocator, 53 HWInfoInterface *hw_info_intf); 54 virtual ~HWDeviceDRM() {} 55 virtual DisplayError Init(); 56 virtual DisplayError Deinit(); 57 58 protected: 59 // From HWInterface 60 virtual DisplayError GetActiveConfig(uint32_t *active_config); 61 virtual DisplayError GetNumDisplayAttributes(uint32_t *count); 62 virtual DisplayError GetDisplayAttributes(uint32_t index, 63 HWDisplayAttributes *display_attributes); 64 virtual DisplayError GetHWPanelInfo(HWPanelInfo *panel_info); 65 virtual DisplayError SetDisplayAttributes(uint32_t index); 66 virtual DisplayError SetDisplayAttributes(const HWDisplayAttributes &display_attributes); 67 virtual DisplayError GetConfigIndex(uint32_t mode, uint32_t *index); 68 virtual DisplayError PowerOn(); 69 virtual DisplayError PowerOff(); 70 virtual DisplayError Doze(); 71 virtual DisplayError DozeSuspend(); 72 virtual DisplayError Standby(); 73 virtual DisplayError Validate(HWLayers *hw_layers); 74 virtual DisplayError Commit(HWLayers *hw_layers); 75 virtual DisplayError Flush(); 76 virtual DisplayError GetPPFeaturesVersion(PPFeatureVersion *vers); 77 virtual DisplayError SetPPFeatures(PPFeaturesConfig *feature_list); 78 virtual DisplayError SetVSyncState(bool enable); 79 virtual void SetIdleTimeoutMs(uint32_t timeout_ms); 80 virtual DisplayError SetDisplayMode(const HWDisplayMode hw_display_mode); 81 virtual DisplayError SetRefreshRate(uint32_t refresh_rate); 82 virtual DisplayError SetPanelBrightness(int level); 83 virtual DisplayError CachePanelBrightness(int level); 84 virtual DisplayError GetHWScanInfo(HWScanInfo *scan_info); 85 virtual DisplayError GetVideoFormat(uint32_t config_index, uint32_t *video_format); 86 virtual DisplayError GetMaxCEAFormat(uint32_t *max_cea_format); 87 virtual DisplayError SetCursorPosition(HWLayers *hw_layers, int x, int y); 88 virtual DisplayError OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level); 89 virtual DisplayError GetPanelBrightness(int *level); 90 virtual DisplayError SetAutoRefresh(bool enable) { return kErrorNone; } 91 virtual DisplayError SetS3DMode(HWS3DMode s3d_mode); 92 virtual DisplayError SetScaleLutConfig(HWScaleLutInfo *lut_info); 93 virtual DisplayError SetMixerAttributes(const HWMixerAttributes &mixer_attributes); 94 virtual DisplayError GetMixerAttributes(HWMixerAttributes *mixer_attributes); 95 96 enum { 97 kHWEventVSync, 98 kHWEventBlank, 99 }; 100 101 static const int kMaxStringLength = 1024; 102 static const int kNumPhysicalDisplays = 2; 103 static const int kMaxSysfsCommandLength = 12; 104 static constexpr const char *kBrightnessNode = 105 "/sys/class/backlight/panel0-backlight/brightness"; 106 107 DisplayError SetFormat(const LayerBufferFormat &source, uint32_t *target); 108 DisplayError SetStride(HWDeviceType device_type, LayerBufferFormat format, uint32_t width, 109 uint32_t *target); 110 DisplayError PopulateDisplayAttributes(); 111 void PopulateHWPanelInfo(); 112 void GetHWDisplayPortAndMode(); 113 void GetHWPanelMaxBrightness(); 114 void ResetDisplayParams(); 115 bool EnableHotPlugDetection(int enable); 116 void UpdateMixerAttributes(); 117 void InitializeConfigs(); 118 void SetBlending(const LayerBlending &source, sde_drm::DRMBlendType *target); 119 void SetSrcConfig(const LayerBuffer &input_buffer, uint32_t *config); 120 void SetRect(const LayerRect &source, sde_drm::DRMRect *target); 121 DisplayError DefaultCommit(HWLayers *hw_layers); 122 DisplayError AtomicCommit(HWLayers *hw_layers); 123 void SetupAtomic(HWLayers *hw_layers, bool validate); 124 125 class Registry { 126 public: 127 explicit Registry(BufferAllocator *buffer_allocator) : buffer_allocator_(buffer_allocator) {} 128 // Call on each validate and commit to register layer buffers 129 void RegisterCurrent(HWLayers *hw_layers); 130 // Call at the end of draw cycle to clear the next slot for business 131 void UnregisterNext(); 132 // Call on display disconnect to release all gem handles and fb_ids 133 void Clear(); 134 // Finds an fb_id corresponding to an fd in current map 135 uint32_t GetFbId(int fd); 136 137 private: 138 static const int kCycleDelay = 1; // N cycle delay before destroy 139 // fd to fb_id map. fd is used as key only for a single draw cycle between 140 // prepare and commit. It should not be used for caching in future due to fd recycling 141 std::unordered_map<int, uint32_t> hashmap_[kCycleDelay] {}; 142 int current_index_ = 0; 143 BufferAllocator *buffer_allocator_ = {}; 144 }; 145 146 HWResourceInfo hw_resource_ = {}; 147 HWPanelInfo hw_panel_info_ = {}; 148 HWInfoInterface *hw_info_intf_ = {}; 149 BufferSyncHandler *buffer_sync_handler_ = {}; 150 HWDeviceType device_type_ = {}; 151 const char *device_name_ = {}; 152 bool synchronous_commit_ = false; 153 HWDisplayAttributes display_attributes_ = {}; 154 HWMixerAttributes mixer_attributes_ = {}; 155 sde_drm::DRMManagerInterface *drm_mgr_intf_ = {}; 156 sde_drm::DRMAtomicReqInterface *drm_atomic_intf_ = {}; 157 sde_drm::DRMDisplayToken token_ = {}; 158 drmModeModeInfo current_mode_ = {}; 159 bool default_mode_ = false; 160 sde_drm::DRMConnectorInfo connector_info_ = {}; 161 std::string interface_str_ = "DSI"; 162 HWScaleDRM *hw_scale_ = {}; 163 Registry registry_; 164 }; 165 166 } // namespace sdm 167 168 #endif // __HW_DEVICE_DRM_H__ 169
