text: /*
   * Copyright (c) 2016, Intel Corporation
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *   * Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *   * Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *   * Neither the name of the Intel Corporation nor the
   *     names of its contributors may be used to endorse or promote products
   *     derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
   */
  
  #include <stdint.h>
  #include <stddef.h>
  #include <sof/lock.h>
  #include <sof/list.h>
  #include <sof/stream.h>
  #include <sof/audio/component.h>
  
  /* tracing */
  #define trace_switch(__e) trace_event(TRACE_CLASS_SWITCH, __e)
  #define trace_switch_error(__e)   trace_error(TRACE_CLASS_SWITCH, __e)
  #define tracev_switch(__e)        tracev_event(TRACE_CLASS_SWITCH, __e)
  
  static struct comp_dev *switch_new(struct sof_ipc_comp *comp)
  {
  	trace_switch("new");
  
  	return NULL;
  }
  
  static void switch_free(struct comp_dev *dev)
  {
  
  }
  
  /* set component audio stream parameters */
  static int switch_params(struct comp_dev *dev)
  {
  
  	return 0;
  }
  
  /* used to pass standard and bespoke commands (with data) to component */
  static int switch_cmd(struct comp_dev *dev, int cmd, void *data)
  {
  	/* switch will use buffer "connected" status */
  	return 0;
  }
  
  /* copy and process stream data from source to sink buffers */
  static int switch_copy(struct comp_dev *dev)
  {
  
  	return 0;
  }
  
  static int switch_reset(struct comp_dev *dev)
  {
  	return 0;
  }
  
  static int switch_prepare(struct comp_dev *dev)
  {
  	return 0;
  }
  
  struct comp_driver comp_switch = {
  	.type	= SOF_COMP_SWITCH,
  	.ops	= {
  		.new		= switch_new,
  		.free		= switch_free,
  		.params		= switch_params,
  		.cmd		= switch_cmd,
  		.copy		= switch_copy,
  		.prepare	= switch_prepare,
  		.reset		= switch_reset,
  	},
  };
  
  void sys_comp_switch_init(void)
  {
  	comp_register(&comp_switch);
  }
  