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