| 1 | /*
|
|---|
| 2 | * Driver for the Atmel AC97C controller
|
|---|
| 3 | *
|
|---|
| 4 | * Copyright (C) 2005-2009 Atmel Corporation
|
|---|
| 5 | *
|
|---|
| 6 | * This program is free software; you can redistribute it and/or modify it
|
|---|
| 7 | * under the terms of the GNU General Public License version 2 as published
|
|---|
| 8 | * by the Free Software Foundation.
|
|---|
| 9 | */
|
|---|
| 10 | #ifndef __INCLUDE_SOUND_ATMEL_AC97C_H
|
|---|
| 11 | #define __INCLUDE_SOUND_ATMEL_AC97C_H
|
|---|
| 12 |
|
|---|
| 13 | #include <linux/platform_data/dma-dw.h>
|
|---|
| 14 |
|
|---|
| 15 | #define AC97C_CAPTURE 0x01
|
|---|
| 16 | #define AC97C_PLAYBACK 0x02
|
|---|
| 17 | #define AC97C_BOTH (AC97C_CAPTURE | AC97C_PLAYBACK)
|
|---|
| 18 |
|
|---|
| 19 | /**
|
|---|
| 20 | * struct atmel_ac97c_pdata - board specific AC97C configuration
|
|---|
| 21 | * @rx_dws: DMA slave interface to use for sound capture.
|
|---|
| 22 | * @tx_dws: DMA slave interface to use for sound playback.
|
|---|
| 23 | * @reset_pin: GPIO pin wired to the reset input on the external AC97 codec,
|
|---|
| 24 | * optional to use, set to -ENODEV if not in use. AC97 layer will
|
|---|
| 25 | * try to do a software reset of the external codec anyway.
|
|---|
| 26 | *
|
|---|
| 27 | * If the user do not want to use a DMA channel for playback or capture, i.e.
|
|---|
| 28 | * only one feature is required on the board. The slave for playback or capture
|
|---|
| 29 | * can be set to NULL. The AC97C driver will take use of this when setting up
|
|---|
| 30 | * the sound streams.
|
|---|
| 31 | */
|
|---|
| 32 | struct ac97c_platform_data {
|
|---|
| 33 | struct dw_dma_slave rx_dws;
|
|---|
| 34 | struct dw_dma_slave tx_dws;
|
|---|
| 35 | int reset_pin;
|
|---|
| 36 | };
|
|---|
| 37 |
|
|---|
| 38 | #endif /* __INCLUDE_SOUND_ATMEL_AC97C_H */
|
|---|
