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/* sound/soc/s3c24xx/s3c64xx-i2s.h
*
* ALSA SoC Audio Layer - S3C64XX I2S driver
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* 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 __SND_SOC_S3C24XX_S3C64XX_I2S_H
#define __SND_SOC_S3C24XX_S3C64XX_I2S_H __FILE__
struct clk;
//#include "s3c-i2s-v2.h"
//==
#define S3C_I2SV2_DIV_BCLK (1)
#define S3C_I2SV2_DIV_RCLK (2)
#define S3C_I2SV2_DIV_PRESCALER (3)
/**
* struct s3c_i2sv2_info - S3C I2S-V2 information
* @dev: The parent device passed to use from the probe.
* @regs: The pointer to the device registe block.
* @master: True if the I2S core is the I2S bit clock master.
* @dma_playback: DMA information for playback channel.
* @dma_capture: DMA information for capture channel.
* @suspend_iismod: PM save for the IISMOD register.
* @suspend_iiscon: PM save for the IISCON register.
* @suspend_iispsr: PM save for the IISPSR register.
*
* This is the private codec state for the hardware associated with an
* I2S channel such as the register mappings and clock sources.
*/
struct s3c_i2sv2_info {
struct device *dev;
void __iomem *regs;
struct clk *sclk_audio;
struct clk *iis_ipclk;
struct clk *iis_cclk;
struct clk *iis_clk;
struct clk *iis_busclk;
struct regulator *regulator;
unsigned char master;
struct s3c_dma_params *dma_playback;
struct s3c_dma_params *dma_capture;
u32 suspend_iismod;
u32 suspend_iiscon;
u32 suspend_iispsr;
u32 suspend_iisahb;
u32 suspend_audss_clksrc;
u32 suspend_audss_clkdiv;
u32 suspend_audss_clkgate;
};
struct s3c_i2sv2_rate_calc {
unsigned int clk_div; /* for prescaler */
unsigned int fs_div; /* for root frame clock */
};
extern int s3c_i2sv2_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
unsigned int *fstab,
unsigned int rate, struct clk *clk);
/**
* s3c_i2sv2_probe - probe for i2s device helper
* @pdev: The platform device supplied to the original probe.
* @dai: The ASoC DAI structure supplied to the original probe.
* @i2s: Our local i2s structure to fill in.
* @base: The base address for the registers.
*/
extern int s3c_i2sv2_probe(struct platform_device *pdev,
struct snd_soc_dai *dai,
struct s3c_i2sv2_info *i2s,
unsigned long base);
/**
* s3c_i2sv2_register_dai - register dai with soc core
* @dai: The snd_soc_dai structure to register
*
* Fill in any missing fields and then register the given dai with the
* soc core.
*/
extern int s3c_i2sv2_register_dai(struct snd_soc_dai *dai);
extern void s5p_idma_init(void *);
//==
#define USE_CLKAUDIO 1
#define S3C64XX_DIV_BCLK S3C_I2SV2_DIV_BCLK
#define S3C64XX_DIV_RCLK S3C_I2SV2_DIV_RCLK
#define S3C64XX_DIV_PRESCALER S3C_I2SV2_DIV_PRESCALER
#define S3C64XX_CLKSRC_PCLK (0)
#define S3C64XX_CLKSRC_MUX (1)
#define S3C64XX_CLKSRC_CDCLK (2)
extern struct snd_soc_dai s3c64xx_i2s_dai[];
extern struct snd_soc_dai i2s_sec_fifo_dai;
extern struct snd_soc_dai i2s_dai;
extern struct snd_soc_platform s3c_dma_wrapper;
extern struct clk *s3c64xx_i2s_get_clock(struct snd_soc_dai *dai);
extern int s5p_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai);
extern int s5p_i2s_startup(struct snd_soc_dai *dai);
extern int s5p_i2s_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai);
extern void s5p_i2s_sec_init(void *, dma_addr_t);
#endif /* __SND_SOC_S3C24XX_S3C64XX_I2S_H */
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