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      1 /* Copyright (c) 2015 - 2016, The Linux Foundataion. All rights reserved.
      2 *
      3 * Redistribution and use in source and binary forms, with or without
      4 * modification, are permitted provided that the following conditions are
      5 * met:
      6 *     * Redistributions of source code must retain the above copyright
      7 *       notice, this list of conditions and the following disclaimer.
      8 *     * Redistributions in binary form must reproduce the above
      9 *       copyright notice, this list of conditions and the following
     10 *       disclaimer in the documentation and/or other materials provided
     11 *       with the distribution.
     12 *     * Neither the name of The Linux Foundation nor the names of its
     13 *       contributors may be used to endorse or promote products derived
     14 *       from this software without specific prior written permission.
     15 *
     16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 *
     28 */
     29 
     30 #include <dlfcn.h>
     31 #include <private/color_interface.h>
     32 #include <utils/constants.h>
     33 #include <utils/debug.h>
     34 #include "color_manager.h"
     35 
     36 #define __CLASS__ "ColorManager"
     37 
     38 namespace sdm {
     39 
     40 void *ColorManagerProxy::color_lib_ = NULL;
     41 CreateColorInterface ColorManagerProxy::create_intf_ = NULL;
     42 DestroyColorInterface ColorManagerProxy::destroy_intf_ = NULL;
     43 HWResourceInfo ColorManagerProxy::hw_res_info_;
     44 
     45 // Below two functions are part of concrete implementation for SDM core private
     46 // color_params.h
     47 void PPFeaturesConfig::Reset() {
     48   for (int i = 0; i < kMaxNumPPFeatures; i++) {
     49     if (feature_[i]) {
     50       delete feature_[i];
     51       feature_[i] = NULL;
     52     }
     53   }
     54   dirty_ = false;
     55   next_idx_ = 0;
     56 }
     57 
     58 DisplayError PPFeaturesConfig::RetrieveNextFeature(PPFeatureInfo **feature) {
     59   DisplayError ret = kErrorNone;
     60   uint32_t i(0);
     61 
     62   for (i = next_idx_; i < kMaxNumPPFeatures; i++) {
     63     if (feature_[i]) {
     64       *feature = feature_[i];
     65       next_idx_ = i + 1;
     66       break;
     67     }
     68   }
     69 
     70   if (i == kMaxNumPPFeatures) {
     71     ret = kErrorParameters;
     72     next_idx_ = 0;
     73   }
     74 
     75   return ret;
     76 }
     77 
     78 DisplayError ColorManagerProxy::Init(const HWResourceInfo &hw_res_info) {
     79   DisplayError error = kErrorNone;
     80 
     81   // Load color service library and retrieve its entry points.
     82   color_lib_ = ::dlopen(COLORMGR_LIBRARY_NAME, RTLD_NOW);
     83   if (color_lib_) {
     84     *(reinterpret_cast<void **>(&create_intf_)) = ::dlsym(color_lib_, CREATE_COLOR_INTERFACE_NAME);
     85     *(reinterpret_cast<void **>(&destroy_intf_)) =
     86         ::dlsym(color_lib_, DESTROY_COLOR_INTERFACE_NAME);
     87     if (!create_intf_ || !destroy_intf_) {
     88       DLOGW("Fail to retrieve = %s from %s", CREATE_COLOR_INTERFACE_NAME, COLORMGR_LIBRARY_NAME);
     89       ::dlclose(color_lib_);
     90       error = kErrorResources;
     91     }
     92   } else {
     93     DLOGW("Fail to load = %s", COLORMGR_LIBRARY_NAME);
     94     error = kErrorResources;
     95   }
     96 
     97   hw_res_info_ = hw_res_info;
     98 
     99   return error;
    100 }
    101 
    102 void ColorManagerProxy::Deinit() {
    103   if (color_lib_)
    104     ::dlclose(color_lib_);
    105 }
    106 
    107 ColorManagerProxy::ColorManagerProxy(DisplayType type, HWInterface *intf,
    108                                      const HWDisplayAttributes &attr,
    109                                      const HWPanelInfo &info)
    110     : device_type_(type), pp_hw_attributes_(), hw_intf_(intf), color_intf_(NULL), pp_features_() {}
    111 
    112 ColorManagerProxy *ColorManagerProxy::CreateColorManagerProxy(DisplayType type,
    113                                                               HWInterface *hw_intf,
    114                                                               const HWDisplayAttributes &attribute,
    115                                                               const HWPanelInfo &panel_info) {
    116   DisplayError error = kErrorNone;
    117   PPFeatureVersion versions;
    118 
    119   // check if all resources are available before invoking factory method from libsdm-color.so.
    120   if (!color_lib_ || !create_intf_ || !destroy_intf_) {
    121     DLOGW("Information for %s isn't available!", COLORMGR_LIBRARY_NAME);
    122     return NULL;
    123   }
    124 
    125   ColorManagerProxy *color_manager_proxy =
    126       new ColorManagerProxy(type, hw_intf, attribute, panel_info);
    127   if (color_manager_proxy) {
    128     // 1. need query post-processing feature version from HWInterface.
    129     error = color_manager_proxy->hw_intf_->GetPPFeaturesVersion(&versions);
    130     PPHWAttributes &hw_attr = color_manager_proxy->pp_hw_attributes_;
    131     if (error != kErrorNone) {
    132       DLOGW("Fail to get DSPP feature versions");
    133     } else {
    134       hw_attr.Set(hw_res_info_, panel_info, attribute, versions);
    135       DLOGW("PAV2 version is versions = %d, version = %d ",
    136             hw_attr.version.version[kGlobalColorFeaturePaV2],
    137             versions.version[kGlobalColorFeaturePaV2]);
    138     }
    139 
    140     // 2. instantiate concrete ColorInterface from libsdm-color.so, pass all hardware info in.
    141     error = create_intf_(COLOR_VERSION_TAG, color_manager_proxy->device_type_, hw_attr,
    142                          &color_manager_proxy->color_intf_);
    143     if (error != kErrorNone) {
    144       DLOGW("Unable to instantiate concrete ColorInterface from %s", COLORMGR_LIBRARY_NAME);
    145       delete color_manager_proxy;
    146       color_manager_proxy = NULL;
    147     }
    148   }
    149 
    150   return color_manager_proxy;
    151 }
    152 
    153 ColorManagerProxy::~ColorManagerProxy() {
    154   if (destroy_intf_)
    155     destroy_intf_(device_type_);
    156   color_intf_ = NULL;
    157 }
    158 
    159 DisplayError ColorManagerProxy::ColorSVCRequestRoute(const PPDisplayAPIPayload &in_payload,
    160                                                      PPDisplayAPIPayload *out_payload,
    161                                                      PPPendingParams *pending_action) {
    162   DisplayError ret = kErrorNone;
    163 
    164   // On completion, dspp_features_ will be populated and mark dirty with all resolved dspp
    165   // feature list with paramaters being transformed into target requirement.
    166   ret = color_intf_->ColorSVCRequestRoute(in_payload, out_payload, &pp_features_, pending_action);
    167 
    168   return ret;
    169 }
    170 
    171 DisplayError ColorManagerProxy::ApplyDefaultDisplayMode(void) {
    172   DisplayError ret = kErrorNone;
    173 
    174   // On POR, will be invoked from prepare<> request once bootanimation is done.
    175   ret = color_intf_->ApplyDefaultDisplayMode(&pp_features_);
    176 
    177   return ret;
    178 }
    179 
    180 bool ColorManagerProxy::NeedsPartialUpdateDisable() {
    181   Locker &locker(pp_features_.GetLocker());
    182   SCOPE_LOCK(locker);
    183 
    184   return pp_features_.IsDirty();
    185 }
    186 
    187 DisplayError ColorManagerProxy::Commit() {
    188   Locker &locker(pp_features_.GetLocker());
    189   SCOPE_LOCK(locker);
    190 
    191   DisplayError ret = kErrorNone;
    192   if (pp_features_.IsDirty()) {
    193     ret = hw_intf_->SetPPFeatures(&pp_features_);
    194   }
    195 
    196   return ret;
    197 }
    198 
    199 void PPHWAttributes::Set(const HWResourceInfo &hw_res,
    200                          const HWPanelInfo &panel_info,
    201                          const DisplayConfigVariableInfo &attr,
    202                          const PPFeatureVersion &feature_ver) {
    203   HWResourceInfo &res = *this;
    204   res = hw_res;
    205   HWPanelInfo &panel = *this;
    206   panel = panel_info;
    207   DisplayConfigVariableInfo &attributes = *this;
    208   attributes = attr;
    209   version = feature_ver;
    210   panel_max_brightness = panel_info.panel_max_brightness;
    211 
    212   if (strlen(panel_info.panel_name)) {
    213     snprintf(&panel_name[0], sizeof(panel_name), "%s", &panel_info.panel_name[0]);
    214     char *tmp = panel_name;
    215     while ((tmp = strstr(tmp, " ")) != NULL)
    216       *tmp = '_';
    217     if ((tmp = strstr(panel_name, "\n")) != NULL)
    218       *tmp = '\0';
    219   }
    220 }
    221 
    222 }  // namespace sdm
    223