/*
   * Driver for the Atmel AC97C controller
   *
   * Copyright (C) 2005-2009 Atmel Corporation
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   */
  #ifndef __INCLUDE_SOUND_ATMEL_AC97C_H
  #define __INCLUDE_SOUND_ATMEL_AC97C_H
  
  #include <linux/dw_dmac.h>
  
  #define AC97C_CAPTURE	0x01
  #define AC97C_PLAYBACK	0x02
  #define AC97C_BOTH	(AC97C_CAPTURE | AC97C_PLAYBACK)
  
  /**
   * struct atmel_ac97c_pdata - board specific AC97C configuration
   * @rx_dws: DMA slave interface to use for sound capture.
   * @tx_dws: DMA slave interface to use for sound playback.
   * @reset_pin: GPIO pin wired to the reset input on the external AC97 codec,
   *             optional to use, set to -ENODEV if not in use. AC97 layer will
   *             try to do a software reset of the external codec anyway.
   * @flags: Flags for which directions should be enabled.
   *
   * If the user do not want to use a DMA channel for playback or capture, i.e.
   * only one feature is required on the board. The slave for playback or capture
   * can be set to NULL. The AC97C driver will take use of this when setting up
   * the sound streams.
   */
  struct ac97c_platform_data {
  	struct dw_dma_slave	rx_dws;
  	struct dw_dma_slave	tx_dws;
  	unsigned int 		flags;
  	int			reset_pin;
  };
  
  #endif /* __INCLUDE_SOUND_ATMEL_AC97C_H */