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Commit a4d7d550 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown
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ASoC: Add SuperH FSI driver support for ALSA 



This driver is very simple.
It support playback only now.
This patch is tested by ms7724se board.

Signed-off-by: default avatarKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent f61c890e

include/sound/sh_fsi.h

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#ifndef __SOUND_FSI_H

#define __SOUND_FSI_H



/*

 * Fifo-attached Serial Interface (FSI) support for SH7724

 *

 * Copyright (C) 2009 Renesas Solutions Corp.

 * Kuninori Morimoto <morimoto.kuninori@renesas.com>

 *

 * 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.

 */



/* flags format



 * 0xABCDEEFF

 *

 * A:  channel size for TDM (input)

 * B:  channel size for TDM (ooutput)

 * C:  inversion

 * D:  mode

 * E:  input format

 * F:  output format

 */



#include <linux/clk.h>

#include <sound/soc.h>



/* TDM channel */

#define SH_FSI_SET_CH_I(x)	((x & 0xF) << 28)

#define SH_FSI_SET_CH_O(x)	((x & 0xF) << 24)



#define SH_FSI_CH_IMASK		0xF0000000

#define SH_FSI_CH_OMASK		0x0F000000

#define SH_FSI_GET_CH_I(x)	((x & SH_FSI_CH_IMASK) >> 28)

#define SH_FSI_GET_CH_O(x)	((x & SH_FSI_CH_OMASK) >> 24)



/* clock inversion */

#define SH_FSI_INVERSION_MASK	0x00F00000

#define SH_FSI_LRM_INV		(1 << 20)

#define SH_FSI_BRM_INV		(1 << 21)

#define SH_FSI_LRS_INV		(1 << 22)

#define SH_FSI_BRS_INV		(1 << 23)



/* mode */

#define SH_FSI_MODE_MASK	0x000F0000

#define SH_FSI_IN_SLAVE_MODE	(1 << 16)  /* default master mode */

#define SH_FSI_OUT_SLAVE_MODE	(1 << 17)  /* default master mode */



/* DI format */

#define SH_FSI_FMT_MASK		0x000000FF

#define SH_FSI_IFMT(x)		(((SH_FSI_FMT_ ## x) & SH_FSI_FMT_MASK) << 8)

#define SH_FSI_OFMT(x)		(((SH_FSI_FMT_ ## x) & SH_FSI_FMT_MASK) << 0)

#define SH_FSI_GET_IFMT(x)	((x >> 8) & SH_FSI_FMT_MASK)

#define SH_FSI_GET_OFMT(x)	((x >> 0) & SH_FSI_FMT_MASK)



#define SH_FSI_FMT_MONO		(1 << 0)

#define SH_FSI_FMT_MONO_DELAY	(1 << 1)

#define SH_FSI_FMT_PCM		(1 << 2)

#define SH_FSI_FMT_I2S		(1 << 3)

#define SH_FSI_FMT_TDM		(1 << 4)

#define SH_FSI_FMT_TDM_DELAY	(1 << 5)



#define SH_FSI_IFMT_TDM_CH(x) \

	(SH_FSI_IFMT(TDM)	| SH_FSI_SET_CH_I(x))

#define SH_FSI_IFMT_TDM_DELAY_CH(x) \

	(SH_FSI_IFMT(TDM_DELAY)	| SH_FSI_SET_CH_I(x))



#define SH_FSI_OFMT_TDM_CH(x) \

	(SH_FSI_OFMT(TDM)	| SH_FSI_SET_CH_O(x))

#define SH_FSI_OFMT_TDM_DELAY_CH(x) \

	(SH_FSI_OFMT(TDM_DELAY)	| SH_FSI_SET_CH_O(x))



struct sh_fsi_platform_info {

	unsigned long porta_flags;

	unsigned long portb_flags;

};



extern struct snd_soc_dai fsi_soc_dai[2];

extern struct snd_soc_platform fsi_soc_platform;



#endif /* __SOUND_FSI_H */

sound/soc/sh/Kconfig

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@@ -20,7 +20,12 @@ config SND_SOC_SH4_HAC 
config SND_SOC_SH4_SSI

	tristate





config SND_SOC_SH4_FSI

	tristate "SH4 FSI support"

	depends on CPU_SUBTYPE_SH7724

        select SH_DMA

	help

	  This option enables FSI sound support



##

## Boards

sound/soc/sh/Makefile

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@@ -5,8 +5,10 @@ obj-$(CONFIG_SND_SOC_PCM_SH7760) += snd-soc-dma-sh7760.o 
## audio units found on some SH-4

snd-soc-hac-objs	:= hac.o

snd-soc-ssi-objs	:= ssi.o

snd-soc-fsi-objs	:= fsi.o

obj-$(CONFIG_SND_SOC_SH4_HAC)	+= snd-soc-hac.o

obj-$(CONFIG_SND_SOC_SH4_SSI)	+= snd-soc-ssi.o

obj-$(CONFIG_SND_SOC_SH4_FSI)	+= snd-soc-fsi.o



## boards

snd-soc-sh7760-ac97-objs	:= sh7760-ac97.o

sound/soc/sh/fsi.c

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