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/*
* idma.h -- I2S0's Internal Dma driver
*
* Copyright (c) 2010 Samsung Electronics Co. Ltd
*
* 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 __S3C_IDMA_H_
#define __S3C_IDMA_H_
#ifdef CONFIG_SND_SAMSUNG_ALP
#include "srp_alp/srp_alp.h"
#endif
#define I2SAHB 0x20
#define I2SSTR0 0x24
#define I2SSIZE 0x28
#define I2STRNCNT 0x2c
#define I2SLVL0ADDR 0x30
#define I2SLVL1ADDR 0x34
#define I2SLVL2ADDR 0x38
#define I2SLVL3ADDR 0x3c
#define I2SSTR1 0x40
#define AHB_DMAEN (1 << 0)
#define AHB_DMACLR (1 << 1)
#define AHB_INTMASK (1 << 3)
#define AHB_DMARLD (1 << 5)
#define AHB_DMA_STRADDRTOG (1 << 6)
#define AHB_DMA_STRADDRRST (1 << 7)
#define AHB_CLRLVL0INT (1 << 16)
#define AHB_CLRLVL1INT (1 << 17)
#define AHB_CLRLVL2INT (1 << 18)
#define AHB_CLRLVL3INT (1 << 19)
#define AHB_LVL0INT (1 << 20)
#define AHB_LVL1INT (1 << 21)
#define AHB_LVL2INT (1 << 22)
#define AHB_LVL3INT (1 << 23)
#define AHB_INTENLVL0 (1 << 24)
#define AHB_INTENLVL1 (1 << 25)
#define AHB_INTENLVL2 (1 << 26)
#define AHB_INTENLVL3 (1 << 27)
#define AHB_LVLINTMASK (0xf << 20)
#define I2SSIZE_TRNMSK (0xffff)
#define I2SSIZE_SHIFT (16)
/* If enabled ALP Audio */
#if defined(CONFIG_SND_SAMSUNG_ALP)
#if defined(CONFIG_ARCH_EXYNOS4)
#define LP_TXBUFF_OFFSET ((soc_is_exynos4412() || soc_is_exynos4212()) ? \
(0x38000) : (0x18000))
#elif defined(CONFIG_ARCH_EXYNOS5)
#define LP_TXBUFF_OFFSET (0x4)
#endif
#define LP_TXBUFF_ADDR (soc_is_exynos5250() ? \
(SRP_DMEM_BASE + LP_TXBUFF_OFFSET) : \
(SRP_IRAM_BASE + LP_TXBUFF_OFFSET))
#define LP_TXBUFF_MAX (32 * 1024)
/* If only enabled LP Audio */
#else
#define LP_TXBUFF_ADDR (0x03000000)
#define LP_TXBUFF_MAX (128 * 1024)
#endif
/* idma_state */
#define LPAM_DMA_STOP 0
#define LPAM_DMA_START 1
#ifdef CONFIG_SND_SOC_SAMSUNG_USE_DMA_WRAPPER
extern struct snd_soc_platform_driver samsung_asoc_idma_platform;
#endif
extern void idma_init(void *regs);
/* These functions are used for srp driver. */
extern int idma_irq_callback(void);
extern void idma_stop(void);
extern int idma_is_running(void);
#endif /* __S3C_IDMA_H_ */
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