text: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * License); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * AS IS BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  /*
   * Copyright (c) 2021, OPEN AI LAB
   * Author: haitao@openailab.com
   */
  
  #include "lstm_param.h"
  
  #include "graph/tensor.h"
  #include "graph/node.h"
  #include "graph/graph.h"
  #include "graph/subgraph.h"
  #include "module/module.h"
  #include "serializer/serializer.h"
  #include "tmfile/tm2_serializer.h"
  #include "device/device.h"
  #include "utility/log.h"
  
  static int lstm_op_map(int op)
  {
      return OP_LSTM;
  }
  
  static int tm2_load_lstm(struct graph* ir_graph, struct node* ir_node, const TM2_Node* tm_node,
                           const TM2_Operator* tm_op)
  {
      struct lstm_param* lstm_param = (struct lstm_param*)ir_node->op.param_mem;
      const struct tm2_priv* tm2_priv = (struct tm2_priv*)ir_graph->serializer_privacy;
      const char* mem_base = tm2_priv->base;
      const TM2_LstmParam* tm_param = (TM2_LstmParam*)(mem_base + tm_op->offset_t_param);
  
      lstm_param->forget_bias = tm_param->forget_bias;
      lstm_param->clip = tm_param->clip;
      lstm_param->output_len = tm_param->output_len;
      lstm_param->sequence_len = tm_param->sequence_len;
      lstm_param->input_size = tm_param->input_size;
      lstm_param->hidden_size = tm_param->hidden_size;
      lstm_param->cell_size = tm_param->cell_size;
      lstm_param->has_peephole = tm_param->has_peephole;
      lstm_param->has_projection = tm_param->has_projection;
      lstm_param->has_clip = tm_param->has_clip;
      lstm_param->has_bias = tm_param->has_bias;
      lstm_param->has_init_state = tm_param->has_init_state;
      lstm_param->forget_act = tm_param->forget_act;
      lstm_param->input_act = tm_param->input_act;
      lstm_param->output_act = tm_param->output_act;
      lstm_param->cellin_act = tm_param->cellin_act;
      lstm_param->cellout_act = tm_param->cellout_act;
      lstm_param->mxnet_flag = tm_param->mxnet_flag;
  
      return 0;
  }
  
  int register_tm2_lstm_op()
  {
      struct serializer* tm2_s = find_serializer_via_name("tengine");
  
      if (tm2_s == NULL)
      {
          TLOG_ERR("tengine serializer has not been registered yet\n");
          return -1;
      }
  
      tm2_s->register_op_loader(tm2_s, TM2_OPTYPE_LSTM, 1, tm2_load_lstm, lstm_op_map, NULL);
  
      return 0;
  }
  
  int unregister_tm2_lstm_op()
  {
      struct serializer* tm2_s = find_serializer_via_name("tengine");
  
      tm2_s->unregister_op_loader(tm2_s, TM2_OPTYPE_LSTM, 1, tm2_load_lstm);
  
      return 0;
  }
  