sdm/libs/dal/hw_virtual_drm.cpp

/*
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      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
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      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

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/* Changes from Qualcomm Innovation Center are provided under the following license:
 *
 * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
 * SPDX-License-Identifier: BSD-3-Clause-Clear
 */

#include <stdio.h>
#include <ctype.h>
#include <drm_logger.h>
#include <utils/debug.h>
#include <utils/utils.h>
#include <algorithm>
#include <vector>
#include <cmath>
#include "hw_device_drm.h"
#include "hw_virtual_drm.h"
#include "hw_info_drm.h"

#define __CLASS__ "HWVirtualDRM"

using std::vector;

using sde_drm::DRMDisplayType;
using sde_drm::DRMConnectorInfo;
using sde_drm::DRMRect;
using sde_drm::DRMOps;
using sde_drm::DRMPowerMode;
using sde_drm::DRMSecureMode;

namespace sdm {

HWVirtualDRM::HWVirtualDRM(int32_t display_id, BufferAllocator *buffer_allocator,
                           HWInfoInterface *hw_info_intf)
  : HWDeviceDRM(buffer_allocator, hw_info_intf) {
  HWDeviceDRM::device_name_ = "Virtual";
  HWDeviceDRM::disp_type_ = DRMDisplayType::VIRTUAL;
  HWDeviceDRM::display_id_ = display_id;
}

void HWVirtualDRM::ConfigureWbConnectorFbId(uint32_t fb_id) {
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_SET_OUTPUT_FB_ID, token_.conn_id, fb_id);
  return;
}

void HWVirtualDRM::ConfigureWbConnectorDestRect(bool reset) {
  DRMRect dst = {};

  if (!reset) {
    dst.bottom = display_attributes_[current_mode_index_].y_pixels;
    dst.right = display_attributes_[current_mode_index_].x_pixels;
  }

  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_SET_OUTPUT_RECT, token_.conn_id, dst);
  return;
}

void HWVirtualDRM::ConfigureWbConnectorSecureMode(bool secure) {
  DRMSecureMode secure_mode = secure ? DRMSecureMode::SECURE : DRMSecureMode::NON_SECURE;
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_SET_FB_SECURE_MODE, token_.conn_id, secure_mode);
}

void HWVirtualDRM::InitializeConfigs() {
  display_attributes_.resize(connector_info_.modes.size());
  for (uint32_t i = 0; i < connector_info_.modes.size(); i++) {
    PopulateDisplayAttributes(i);
  }
}

DisplayError HWVirtualDRM::SetWbConfigs(const HWDisplayAttributes &display_attributes) {
  if (display_attributes.x_pixels > connector_info_.max_linewidth) {
    DLOGE("Requested width %d is more than supported %d", display_attributes.x_pixels,
           connector_info_.max_linewidth);
    return kErrorHardware;
  }

  drmModeModeInfo mode = {};
  vector<drmModeModeInfo> modes;

  mode.hdisplay = mode.hsync_start = mode.hsync_end = mode.htotal =
                                       UINT16(display_attributes.x_pixels);
  mode.vdisplay = mode.vsync_start = mode.vsync_end = mode.vtotal =
                                       UINT16(display_attributes.y_pixels);
  mode.vrefresh = UINT32(display_attributes.fps);

  mode.clock = std::round(FLOAT(mode.htotal * mode.vtotal * mode.vrefresh) / 1000.00f);
  snprintf(mode.name, DRM_DISPLAY_MODE_LEN, "%dx%d", mode.hdisplay, mode.vdisplay);
  modes.push_back(mode);
  for (auto &item : connector_info_.modes) {
    modes.push_back(item.mode);
  }

  // Inform the updated mode list to the driver
  struct sde_drm_wb_cfg wb_cfg = {};
  wb_cfg.connector_id = token_.conn_id;
  wb_cfg.flags = SDE_DRM_WB_CFG_FLAGS_CONNECTED;
  wb_cfg.count_modes = UINT32(modes.size());
  wb_cfg.modes = (uint64_t)modes.data();

  int ret = -EINVAL;
#ifdef DRM_IOCTL_SDE_WB_CONFIG
  ret = drmIoctl(dev_fd_, DRM_IOCTL_SDE_WB_CONFIG, &wb_cfg);
#endif
  if (ret) {
    DLOGE("Dump WBConfig: mode_count %d flags %x", wb_cfg.count_modes, wb_cfg.flags);
    DumpConnectorModeInfo();
    return kErrorHardware;
  }

  return kErrorNone;
}

void HWVirtualDRM::ConfigureDNSC(HWLayersInfo *hw_layers_info) {
#ifdef FEATURE_DNSC_BLUR
  sde_drm::DRMFrameTriggerMode trigger_mode = sde_drm::DRMFrameTriggerMode::FRAME_DONE_WAIT_DEFAULT;
  sde_drm::DRMWBUsageType usage_mode = sde_drm::DRMWBUsageType::WB_USAGE_WFD;

  if (hw_layers_info->iwe_enabled) {
    trigger_mode = sde_drm::DRMFrameTriggerMode::FRAME_DONE_WAIT_POSTED_START;
    usage_mode = sde_drm::DRMWBUsageType::WB_USAGE_OFFLINE_WB;
    topology_control_ |= UINT32(sde_drm::DRMTopologyControl::DNSC_BLUR);
  }

  HWDNSCInfo& dnsc = hw_layers_info->dnsc_cfg;
  dnsc_cfg_ = {};

  if (dnsc.enabled) {
    dnsc_cfg_.flags = dnsc.flags;
    dnsc_cfg_.num_blocks = dnsc.num_blocks;

    dnsc_cfg_.src_width = dnsc.src_width;
    dnsc_cfg_.src_height = dnsc.src_height;
    dnsc_cfg_.dst_width = dnsc.dst_width;
    dnsc_cfg_.dst_height = dnsc.dst_height;

    dnsc_cfg_.flags_h = dnsc.flags_h;
    dnsc_cfg_.flags_v = dnsc.flags_v;

    dnsc_cfg_.phase_init_h = dnsc.pcmn_data.phase_init_h;
    dnsc_cfg_.phase_step_h = dnsc.pcmn_data.phase_step_h;
    dnsc_cfg_.phase_init_v = dnsc.pcmn_data.phase_init_v;
    dnsc_cfg_.phase_step_v = dnsc.pcmn_data.phase_step_v;

    dnsc_cfg_.norm_h = dnsc.gaussian_data.norm_h;
    dnsc_cfg_.ratio_h = dnsc.gaussian_data.ratio_h;
    dnsc_cfg_.norm_v = dnsc.gaussian_data.norm_v;
    dnsc_cfg_.ratio_v = dnsc.gaussian_data.ratio_v;

    for (int i = 0; i < DNSC_BLUR_COEF_NUM && i < dnsc.gaussian_data.coef_hori.size(); i++) {
      dnsc_cfg_.coef_hori[i] = dnsc.gaussian_data.coef_hori[i];
    }

    for (int i = 0; i < DNSC_BLUR_COEF_NUM && i < dnsc.gaussian_data.coef_vert.size(); i++) {
      dnsc_cfg_.coef_vert[i] = dnsc.gaussian_data.coef_vert[i];
    }
  }

  uint32_t conn_id = token_.conn_id;
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_CACHE_STATE, conn_id, dnsc.cache_state);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_EARLY_FENCE_LINE, conn_id, dnsc.early_fence_line);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_DNSC_BLR, conn_id, &dnsc_cfg_);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_WB_USAGE_TYPE, conn_id, usage_mode);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_SET_FRAME_TRIGGER, conn_id, trigger_mode);
#endif
}

DisplayError HWVirtualDRM::Commit(HWLayersInfo *hw_layers_info) {
  std::shared_ptr<LayerBuffer> output_buffer = hw_layers_info->output_buffer;
  DisplayError err = kErrorNone;

  registry_.Register(hw_layers_info);
  registry_.MapOutputBufferToFbId(output_buffer);
  uint32_t fb_id = registry_.GetOutputFbId(output_buffer->handle_id);

  ConfigureWbConnectorFbId(fb_id);
  ConfigureWbConnectorSecureMode(output_buffer->flags.secure);
  ConfigureDNSC(hw_layers_info);
  ConfigureWbConnectorDestRect(hw_layers_info->iwe_enabled);

  err = HWDeviceDRM::AtomicCommit(hw_layers_info);
  if (err != kErrorNone) {
    DLOGE("Atomic commit failed for crtc_id %d conn_id %d", token_.crtc_id, token_.conn_id);
  }

  // Retire fence marks WB done event.
  output_buffer->release_fence = hw_layers_info->retire_fence;
  hw_layers_info->output_fb_id = fb_id;

  return(err);
}

DisplayError HWVirtualDRM::Flush(HWLayersInfo *hw_layers_info) {
  DisplayError err = kErrorNone;
  err = Commit(hw_layers_info);

  if (err != kErrorNone) {
    return err;
  }

  return kErrorNone;
}

DisplayError HWVirtualDRM::Validate(HWLayersInfo *hw_layers_info) {
  std::shared_ptr<LayerBuffer> output_buffer = hw_layers_info->output_buffer;

  registry_.MapOutputBufferToFbId(output_buffer);
  uint32_t fb_id = registry_.GetOutputFbId(output_buffer->handle_id);

  ConfigureWbConnectorFbId(fb_id);
  ConfigureWbConnectorDestRect();
  ConfigureWbConnectorSecureMode(output_buffer->flags.secure);

  return HWDeviceDRM::Validate(hw_layers_info);
}

DisplayError HWVirtualDRM::SetDisplayAttributes(const HWDisplayAttributes &display_attributes) {
  if (display_attributes.x_pixels == 0 || display_attributes.y_pixels == 0) {
    return kErrorParameters;
  }

  int mode_index = -1;
  int ret = 0;
  GetModeIndex(display_attributes, &mode_index);

  if (mode_index < 0) {
    DisplayError error = SetWbConfigs(display_attributes);
    if (error != kErrorNone) {
      return error;
    }
  }

  // Reload connector info for updated info
  ret = drm_mgr_intf_->GetConnectorInfo(token_.conn_id, &connector_info_);
  if (ret) {
    DLOGE("Failed getting info for connector id %u. Error: %d.", token_.conn_id, ret);
    return kErrorHardware;
  }
  GetModeIndex(display_attributes, &mode_index);

  if (mode_index < 0) {
    DLOGE("Mode not found for resolution %dx%d fps %d", display_attributes.x_pixels,
          display_attributes.y_pixels, UINT32(display_attributes.fps));
    DumpConnectorModeInfo();
    return kErrorNotSupported;
  }

  current_mode_index_ = UINT32(mode_index);
  InitializeConfigs();
  PopulateHWPanelInfo();
  UpdateMixerAttributes();

  DLOGI("New WB Resolution: %dx%d cur_mode_index %d", display_attributes.x_pixels,
        display_attributes.y_pixels, current_mode_index_);

  return kErrorNone;
}

DisplayError HWVirtualDRM::GetPPFeaturesVersion(PPFeatureVersion *vers) {
  return kErrorNone;
}

void HWVirtualDRM::GetModeIndex(const HWDisplayAttributes &display_attributes, int *mode_index) {
  *mode_index = -1;
  for (uint32_t i = 0; i < connector_info_.modes.size(); i++) {
    if (display_attributes.x_pixels == connector_info_.modes[i].mode.hdisplay &&
        display_attributes.y_pixels == connector_info_.modes[i].mode.vdisplay &&
        display_attributes.fps == connector_info_.modes[i].mode.vrefresh) {
      *mode_index = INT32(i);
      break;
    }
  }
}

DisplayError HWVirtualDRM::PowerOn(const HWQosData &qos_data, SyncPoints *sync_points) {
  DTRACE_SCOPED();
  if (!drm_atomic_intf_) {
    DLOGE("DRM Atomic Interface is null!");
    return kErrorUndefined;
  }

  // Since fb id is not available until first draw cycle and driver expects fb id to be set on any
  // commit(null or atomic commit). Need to defer power on for the first cycle.
  if (first_cycle_) {
    return kErrorNone;
  }

  DisplayError err = HWDeviceDRM::PowerOn(qos_data, sync_points);
  if (err != kErrorNone) {
    return err;
  }

  return kErrorNone;
}

DisplayError HWVirtualDRM::GetDisplayIdentificationData(uint8_t *out_port, uint32_t *out_data_size,
                                                        uint8_t *out_data) {
  *out_data_size = 0;
  *out_port = token_.hw_port;

  return kErrorNone;
}

DisplayError HWVirtualDRM::Deinit() {
#ifdef FEATURE_DNSC_BLUR
  sde_drm::DRMFrameTriggerMode trigger_mode = sde_drm::DRMFrameTriggerMode::FRAME_DONE_WAIT_DEFAULT;
  sde_drm::DRMWBUsageType usage_mode = sde_drm::DRMWBUsageType::WB_USAGE_WFD;
  uint32_t conn_id = token_.conn_id;

  dnsc_cfg_ = {};

  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_CACHE_STATE, conn_id, 0);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_EARLY_FENCE_LINE, conn_id, 0);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_DNSC_BLR, conn_id, &dnsc_cfg_);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_WB_USAGE_TYPE, conn_id, usage_mode);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_SET_FRAME_TRIGGER, conn_id, trigger_mode);
  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_SET_TOPOLOGY_CONTROL, conn_id, 0);
#endif

  return HWDeviceDRM::Deinit();
}

}  // namespace sdm