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/*
* 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 */