| /* |
| * Copyright (c) 2014 - 2015, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, are permitted |
| * provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright notice, this list of |
| * conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright notice, this list of |
| * conditions and the following disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its contributors may be used to |
| * endorse or promote products derived from this software without specific prior written |
| * permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <utils/constants.h> |
| #include <utils/debug.h> |
| |
| #include "display_hdmi.h" |
| #include "hw_hdmi_interface.h" |
| #include "hw_info_interface.h" |
| |
| #define __CLASS__ "DisplayHDMI" |
| |
| namespace sdm { |
| |
| DisplayHDMI::DisplayHDMI(DisplayEventHandler *event_handler, HWInfoInterface *hw_info_intf, |
| BufferSyncHandler *buffer_sync_handler, CompManager *comp_manager, |
| RotatorInterface *rotator_intf) |
| : DisplayBase(kHDMI, event_handler, kDeviceHDMI, buffer_sync_handler, comp_manager, |
| rotator_intf), hw_info_intf_(hw_info_intf) { |
| } |
| |
| DisplayError DisplayHDMI::Init() { |
| SCOPE_LOCK(locker_); |
| |
| DisplayError error = HWHDMIInterface::Create(&hw_hdmi_intf_, hw_info_intf_, |
| DisplayBase::buffer_sync_handler_); |
| if (error != kErrorNone) { |
| return error; |
| } |
| |
| DisplayBase::hw_intf_ = hw_hdmi_intf_; |
| error = hw_hdmi_intf_->Open(NULL); |
| if (error != kErrorNone) { |
| return error; |
| } |
| |
| error = DisplayBase::Init(); |
| if (error != kErrorNone) { |
| HWHDMIInterface::Destroy(hw_hdmi_intf_); |
| } |
| |
| GetScanSupport(); |
| underscan_supported_ = (scan_support_ == kScanAlwaysUnderscanned) || (scan_support_ == kScanBoth); |
| |
| return error; |
| } |
| |
| DisplayError DisplayHDMI::Deinit() { |
| SCOPE_LOCK(locker_); |
| |
| DisplayError error = DisplayBase::Deinit(); |
| if (error != kErrorNone) { |
| return error; |
| } |
| HWHDMIInterface::Destroy(hw_hdmi_intf_); |
| |
| return error; |
| } |
| |
| DisplayError DisplayHDMI::Prepare(LayerStack *layer_stack) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::Prepare(layer_stack); |
| } |
| |
| DisplayError DisplayHDMI::Commit(LayerStack *layer_stack) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::Commit(layer_stack); |
| } |
| |
| DisplayError DisplayHDMI::Flush() { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::Flush(); |
| } |
| |
| DisplayError DisplayHDMI::GetDisplayState(DisplayState *state) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::GetDisplayState(state); |
| } |
| |
| DisplayError DisplayHDMI::GetNumVariableInfoConfigs(uint32_t *count) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::GetNumVariableInfoConfigs(count); |
| } |
| |
| DisplayError DisplayHDMI::GetConfig(DisplayConfigFixedInfo *fixed_info) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::GetConfig(fixed_info); |
| } |
| |
| DisplayError DisplayHDMI::GetConfig(uint32_t index, DisplayConfigVariableInfo *variable_info) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::GetConfig(index, variable_info); |
| } |
| |
| DisplayError DisplayHDMI::GetActiveConfig(uint32_t *index) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::GetActiveConfig(index); |
| } |
| |
| DisplayError DisplayHDMI::GetVSyncState(bool *enabled) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::GetVSyncState(enabled); |
| } |
| |
| DisplayError DisplayHDMI::SetDisplayState(DisplayState state) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::SetDisplayState(state); |
| } |
| |
| DisplayError DisplayHDMI::SetActiveConfig(DisplayConfigVariableInfo *variable_info) { |
| SCOPE_LOCK(locker_); |
| return kErrorNotSupported; |
| } |
| |
| DisplayError DisplayHDMI::SetActiveConfig(uint32_t index) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::SetActiveConfig(index); |
| } |
| |
| DisplayError DisplayHDMI::SetVSyncState(bool enable) { |
| SCOPE_LOCK(locker_); |
| return kErrorNotSupported; |
| } |
| |
| void DisplayHDMI::SetIdleTimeoutMs(uint32_t timeout_ms) { } |
| |
| DisplayError DisplayHDMI::SetMaxMixerStages(uint32_t max_mixer_stages) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::SetMaxMixerStages(max_mixer_stages); |
| } |
| |
| DisplayError DisplayHDMI::SetDisplayMode(uint32_t mode) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::SetDisplayMode(mode); |
| } |
| |
| DisplayError DisplayHDMI::IsScalingValid(const LayerRect &crop, const LayerRect &dst, |
| bool rotate90) { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::IsScalingValid(crop, dst, rotate90); |
| } |
| |
| DisplayError DisplayHDMI::SetRefreshRate(uint32_t refresh_rate) { |
| SCOPE_LOCK(locker_); |
| return kErrorNotSupported; |
| } |
| |
| bool DisplayHDMI::IsUnderscanSupported() { |
| SCOPE_LOCK(locker_); |
| return DisplayBase::IsUnderscanSupported(); |
| } |
| |
| int DisplayHDMI::GetBestConfig() { |
| uint32_t best_config_mode = 0; |
| HWDisplayAttributes *best = &display_attributes_[0]; |
| if (num_modes_ == 1) { |
| return best_config_mode; |
| } |
| |
| // From the available configs, select the best |
| // Ex: 1920x1080@60Hz is better than 1920x1080@30 and 1920x1080@30 is better than 1280x720@60 |
| for (uint32_t index = 1; index < num_modes_; index++) { |
| HWDisplayAttributes *current = &display_attributes_[index]; |
| // compare the two modes: in the order of Resolution followed by refreshrate |
| if (current->y_pixels > best->y_pixels) { |
| best_config_mode = index; |
| } else if (current->y_pixels == best->y_pixels) { |
| if (current->x_pixels > best->x_pixels) { |
| best_config_mode = index; |
| } else if (current->x_pixels == best->x_pixels) { |
| if (current->vsync_period_ns < best->vsync_period_ns) { |
| best_config_mode = index; |
| } |
| } |
| } |
| if (best_config_mode == index) { |
| best = &display_attributes_[index]; |
| } |
| } |
| |
| // Used for changing HDMI Resolution - override the best with user set config |
| uint32_t user_config = Debug::GetHDMIResolution(); |
| if (user_config) { |
| uint32_t config_index = -1; |
| // For the config, get the corresponding index |
| DisplayError error = hw_intf_->GetConfigIndex(user_config, &config_index); |
| if (error == kErrorNone) |
| return config_index; |
| } |
| |
| return best_config_mode; |
| } |
| |
| void DisplayHDMI::GetScanSupport() { |
| DisplayError error = kErrorNone; |
| uint32_t video_format = -1; |
| uint32_t max_cea_format = -1; |
| HWScanInfo scan_info = HWScanInfo(); |
| hw_hdmi_intf_->GetHWScanInfo(&scan_info); |
| |
| error = hw_hdmi_intf_->GetVideoFormat(active_mode_index_, &video_format); |
| if (error != kErrorNone) { |
| return; |
| } |
| |
| error = hw_hdmi_intf_->GetMaxCEAFormat(&max_cea_format); |
| if (error != kErrorNone) { |
| return; |
| } |
| |
| // The scan support for a given HDMI TV must be read from scan info corresponding to |
| // Preferred Timing if the preferred timing of the display is currently active, and if it is |
| // valid. In all other cases, we must read the scan support from CEA scan info if |
| // the resolution is a CEA resolution, or from IT scan info for all other resolutions. |
| if (active_mode_index_ == 0 && scan_info.pt_scan_support != kScanNotSupported) { |
| scan_support_ = scan_info.pt_scan_support; |
| } else if (video_format < max_cea_format) { |
| scan_support_ = scan_info.cea_scan_support; |
| } else { |
| scan_support_ = scan_info.it_scan_support; |
| } |
| } |
| |
| void DisplayHDMI::AppendDump(char *buffer, uint32_t length) { |
| SCOPE_LOCK(locker_); |
| DisplayBase::AppendDump(buffer, length); |
| } |
| |
| } // namespace sdm |
| |