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linux-next/include/sound/sh_fsi.h
Kuninori Morimoto f17c13ca52 ASoC: sh: fsi: modify selection method of I2S/PCM/SPDIF format
Current format selection of FSI-codecs depended on platform information for FSI,
and chip default settings for codecs. It is not understandable/formal method.
This patch modify FSI and FSI-codecs to use snd_soc_dai_set_fmt.

But FSI can use I2S/PCM and SPDIF format today.
It can be selected to I2S/PCM by snd_soc_dai_set_fmt, but can not select SPDIF.
So, this patch change FSI platform information to have DAI/SPDIF mode.

If platform selects DAI mode (default),
FSI-codecs can select I2S/PCM by snd_soc_dai_set_fmt,
and if it is SPDIF mode, FSI become SPDIF format.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-01-26 11:25:47 +00:00

82 lines
1.8 KiB
C

#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.
*/
#define FSI_PORT_A 0
#define FSI_PORT_B 1
#include <linux/clk.h>
#include <sound/soc.h>
/*
* flags format
*
* 0x000000BA
*
* A: inversion
* B: format mode
*/
/* A: clock inversion */
#define SH_FSI_INVERSION_MASK 0x0000000F
#define SH_FSI_LRM_INV (1 << 0)
#define SH_FSI_BRM_INV (1 << 1)
#define SH_FSI_LRS_INV (1 << 2)
#define SH_FSI_BRS_INV (1 << 3)
/* B: format mode */
#define SH_FSI_FMT_MASK 0x000000F0
#define SH_FSI_FMT_DAI (0 << 4)
#define SH_FSI_FMT_SPDIF (1 << 4)
/*
* set_rate return value
*
* see ACKMD/BPFMD on
* ACK_MD (FSI2)
* CKG1 (FSI)
*
* err : return value < 0
* no change : return value == 0
* change xMD : return value > 0
*
* 0x-00000AB
*
* A: ACKMD value
* B: BPFMD value
*/
#define SH_FSI_ACKMD_MASK (0xF << 0)
#define SH_FSI_ACKMD_512 (1 << 0)
#define SH_FSI_ACKMD_256 (2 << 0)
#define SH_FSI_ACKMD_128 (3 << 0)
#define SH_FSI_ACKMD_64 (4 << 0)
#define SH_FSI_ACKMD_32 (5 << 0)
#define SH_FSI_BPFMD_MASK (0xF << 4)
#define SH_FSI_BPFMD_512 (1 << 4)
#define SH_FSI_BPFMD_256 (2 << 4)
#define SH_FSI_BPFMD_128 (3 << 4)
#define SH_FSI_BPFMD_64 (4 << 4)
#define SH_FSI_BPFMD_32 (5 << 4)
#define SH_FSI_BPFMD_16 (6 << 4)
struct sh_fsi_platform_info {
unsigned long porta_flags;
unsigned long portb_flags;
int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
};
#endif /* __SOUND_FSI_H */