displayconfig: Add RC Feature query support

Add support to query if RC Feature is available.

CRs-Fixed: 2758787
Change-Id: I463382fba34cbfbddef13e976bb055a0a362eb14

services/config/config_defs.h

@@ -298,6 +298,7 @@ class ConfigInterface {
   virtual int GetDisplayHwId(uint32_t disp_id, uint32_t *display_hw_id) DEFAULT_RET
   virtual int GetSupportedDisplayRefreshRates(
       DisplayType dpy, std::vector<uint32_t> *supported_refresh_rates) DEFAULT_RET
+  virtual int IsRCSupported(uint32_t disp_id, bool *supported) DEFAULT_RET
 
   // deprecated APIs
   virtual int GetDebugProperty(const std::string prop_name, std::string value) DEFAULT_RET

services/config/src/client_impl.cpp

@@ -891,6 +891,28 @@ int ClientImpl::GetSupportedDisplayRefreshRates(DisplayType dpy,
   return error;
 }
 
+int ClientImpl::IsRCSupported(uint32_t disp_id, bool *supported) {
+  ByteStream input_params;
+  input_params.setToExternal(reinterpret_cast<uint8_t*>(&disp_id), sizeof(uint32_t));
+  const bool *output;
+  ByteStream output_params;
+  int error = 0;
+  auto hidl_cb = [&error, &output_params] (int32_t err, ByteStream params, HandleStream handles) {
+    error = err;
+    output_params = params;
+  };
+
+  display_config_->perform(client_handle_, kIsRCSupported, input_params, {}, hidl_cb);
+
+  if (!error) {
+    const uint8_t *data = output_params.data();
+    output = reinterpret_cast<const bool*>(data);
+    *supported = *output;
+  }
+
+  return error;
+}
+
 void ClientCallback::ParseNotifyCWBBufferDone(const ByteStream &input_params,
                                               const HandleStream &input_handles) {
   const int *error;

services/config/src/client_impl.h

@@ -118,6 +118,7 @@ class ClientImpl : public ClientInterface {
   virtual int GetDisplayHwId(uint32_t disp_id, uint32_t *display_hw_id);
   virtual int GetSupportedDisplayRefreshRates(DisplayType dpy,
                                               std::vector<uint32_t> *supported_refresh_rates);
+  virtual int IsRCSupported(uint32_t disp_id, bool *supported);
 
  private:
   android::sp<IDisplayConfig> display_config_ = nullptr;

services/config/src/device_impl.cpp

@@ -761,6 +761,18 @@ void DeviceImpl::DeviceClientContext::ParseGetSupportedDisplayRefreshRates(
   _hidl_cb(error, output_params, {});
 }
 
+void DeviceImpl::DeviceClientContext::ParseIsRCSupported(const ByteStream &input_params,
+                                                         perform_cb _hidl_cb) {
+  const uint8_t *data = input_params.data();
+  const uint32_t *disp_id = reinterpret_cast<const uint32_t*>(data);
+  bool supported = false;
+  int32_t error = intf_->IsRCSupported(*disp_id, &supported);
+  ByteStream output_params;
+  output_params.setToExternal(reinterpret_cast<uint8_t*>(&supported), sizeof(bool));
+
+  _hidl_cb(error, output_params, {});
+}
+
 Return<void> DeviceImpl::perform(uint64_t client_handle, uint32_t op_code,
                                  const ByteStream &input_params, const HandleStream &input_handles,
                                  perform_cb _hidl_cb) {
@@ -917,6 +929,9 @@ Return<void> DeviceImpl::perform(uint64_t client_handle, uint32_t op_code,
     case kGetSupportedDisplayRefreshRates:
       client->ParseGetSupportedDisplayRefreshRates(input_params, _hidl_cb);
       break;
+    case kIsRCSupported:
+      client->ParseIsRCSupported(input_params, _hidl_cb);
+      break;
     default:
       break;
   }

services/config/src/device_impl.h

@@ -119,6 +119,7 @@ class DeviceImpl : public IDisplayConfig, public android::hardware::hidl_death_r
     void ParseSendTUIEvent(const ByteStream &input_params, perform_cb _hidl_cb);
     void ParseGetDisplayHwId(const ByteStream &input_params, perform_cb _hidl_cb);
     void ParseGetSupportedDisplayRefreshRates(const ByteStream &input_params, perform_cb _hidl_cb);
+    void ParseIsRCSupported(const ByteStream &input_params, perform_cb _hidl_cb);
 
    private:
     ConfigInterface *intf_ = nullptr;

services/config/src/opcode_types.h

@@ -78,6 +78,7 @@ enum OpCode {
   kSendTUIEvent = 42,
   kGetDisplayHwId = 43,
   kGetSupportedDisplayRefreshRates = 44,
+  kIsRCSupported = 45,
 
   kDestroy = 0xFFFF, // Destroy sequence execution
 };