linux/sound/soc/samsung/idma.h
Sangbeom Kim f09aecd50f ASoC: SAMSUNG: Add I2S0 internal dma driver
I2S in Exynos4 and S5PC110(S5PV210) has a internal dma.
It can be used low power audio mode and 2nd channel transfer.
This patch can support idma.

[Reapplied after dependencies propagated through in 3.1-rc1. --broonie]

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-12 09:48:26 +09:00

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/*
* sound/soc/samsung/idma.h
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd
* http://www.samsung.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __SND_SOC_SAMSUNG_IDMA_H_
#define __SND_SOC_SAMSUNG_IDMA_H_
extern void idma_reg_addr_init(void *regs, dma_addr_t addr);
/* dma_state */
#define LPAM_DMA_STOP 0
#define LPAM_DMA_START 1
#define MAX_IDMA_PERIOD (128 * 1024)
#define MAX_IDMA_BUFFER (160 * 1024)
#endif /* __SND_SOC_SAMSUNG_IDMA_H_ */