| /* |
| * 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 */ |
