text: /* Copyright (c) 2013 Nordic Semiconductor. All Rights Reserved.
   *
   * The information contained herein is property of Nordic Semiconductor ASA.
   * Terms and conditions of usage are described in detail in NORDIC
   * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
   *
   * Licensees are granted free, non-transferable use of the information. NO
   * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
   * the file.
   *
   */
  
  #include "ble_gattc_app.h"
  #include <string.h>
  #include "ble_serialization.h"
  #include "app_util.h"
  
  uint32_t ble_gattc_write_req_enc(uint16_t                               conn_handle,
                                   ble_gattc_write_params_t const * const p_write_params,
                                   uint8_t * const                        p_buf,
                                   uint32_t *                             p_buf_len)
  {
      uint32_t index = 0;
  
      SER_ASSERT_NOT_NULL(p_buf);
      SER_ASSERT_NOT_NULL(p_buf_len);
  
      SER_ASSERT_LENGTH_LEQ(index + 4, *p_buf_len);
  
      p_buf[index++] = SD_BLE_GATTC_WRITE;
      index         += uint16_encode(conn_handle, &p_buf[index]);
      p_buf[index++] = (p_write_params == NULL) ? SER_FIELD_NOT_PRESENT : SER_FIELD_PRESENT;
  
      if (p_write_params != NULL)
      {
          SER_ASSERT_LENGTH_LEQ(index + 9, *p_buf_len);
          p_buf[index++] = p_write_params->write_op;
          p_buf[index++] = p_write_params->flags;
          index         += uint16_encode(p_write_params->handle, &p_buf[index]);
          index         += uint16_encode(p_write_params->offset, &p_buf[index]);
          index         += uint16_encode(p_write_params->len, &p_buf[index]);
  
          SER_ERROR_CHECK(p_write_params->len <= BLE_GATTC_WRITE_P_VALUE_LEN_MAX,
                          NRF_ERROR_INVALID_PARAM);
  
          p_buf[index++] = (p_write_params->p_value == NULL) ?
                           SER_FIELD_NOT_PRESENT : SER_FIELD_PRESENT;
  
          if (p_write_params->p_value != NULL)
          {
              SER_ASSERT_LENGTH_LEQ(index + p_write_params->len, *p_buf_len);
              memcpy(&p_buf[index], p_write_params->p_value, p_write_params->len);
              index += p_write_params->len;
          }
      }
  
      *p_buf_len = index;
  
      return NRF_SUCCESS;
  }
  
  
  uint32_t ble_gattc_write_rsp_dec(uint8_t const * const p_buf,
                                   uint32_t              packet_len,
                                   uint32_t * const      p_result_code)
  {
      return ser_ble_cmd_rsp_dec(p_buf, packet_len, SD_BLE_GATTC_WRITE, p_result_code);
  }
  