[linux-2.6-block.git] / arch / arm / plat-omap / include / mach / eac.h

/*
 * arch/arm/plat-omap/include/mach2/eac.h
 *
 * Defines for Enhanced Audio Controller
 *
 * Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
 *
 * Copyright (C) 2006 Nokia Corporation
 * Copyright (C) 2004 Texas Instruments, Inc.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#ifndef __ASM_ARM_ARCH_OMAP2_EAC_H
#define __ASM_ARM_ARCH_OMAP2_EAC_H

#include <mach/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>

#include <sound/core.h>

/* master codec clock source */
#define EAC_MCLK_EXT_MASK	0x100
enum eac_mclk_src {
	EAC_MCLK_INT_11290000, /* internal 96 MHz / 8.5 = 11.29 Mhz */
	EAC_MCLK_EXT_11289600 = EAC_MCLK_EXT_MASK,
	EAC_MCLK_EXT_12288000,
	EAC_MCLK_EXT_2x11289600,
	EAC_MCLK_EXT_2x12288000,
};

/* codec port interface mode */
enum eac_codec_mode {
	EAC_CODEC_PCM,
	EAC_CODEC_AC97,
	EAC_CODEC_I2S_MASTER, /* codec port, I.e. EAC is the master */
	EAC_CODEC_I2S_SLAVE,
};

/* configuration structure for I2S mode */
struct eac_i2s_conf {
	/* if enabled, then first data slot (left channel) is signaled as
	 * positive level of frame sync EAC.AC_FS */
	unsigned	polarity_changed_mode:1;
	/* if enabled, then serial data starts one clock cycle after the
	 * of EAC.AC_FS for first audio slot */
	unsigned	sync_delay_enable:1;
};

/* configuration structure for EAC codec port */
struct eac_codec {
	enum eac_mclk_src	mclk_src;

	enum eac_codec_mode	codec_mode;
	union {
		struct eac_i2s_conf	i2s;
	} codec_conf;

	int		default_rate; /* audio sampling rate */

	int		(* set_power)(void *private_data, int dac, int adc);
	int		(* register_controls)(void *private_data,
					      struct snd_card *card);
	const char 	*short_name;

	void		*private_data;
};

/* structure for passing platform dependent data to the EAC driver */
struct eac_platform_data {
        int	(* init)(struct device *eac_dev);
	void	(* cleanup)(struct device *eac_dev);
	/* these callbacks are used to configure & control external MCLK
	 * source. NULL if not used */
	int	(* enable_ext_clocks)(struct device *eac_dev);
	void	(* disable_ext_clocks)(struct device *eac_dev);
};

extern void omap_init_eac(struct eac_platform_data *pdata);

extern int eac_register_codec(struct device *eac_dev, struct eac_codec *codec);
extern void eac_unregister_codec(struct device *eac_dev);

extern int eac_set_mode(struct device *eac_dev, int play, int rec);

#endif /* __ASM_ARM_ARCH_OMAP2_EAC_H */
Commit	Line	Data
8777297b	1	/*
a09e64fb	2	* arch/arm/plat-omap/include/mach2/eac.h
8777297b KS	3	*
	4	* Defines for Enhanced Audio Controller
	5	*
	6	* Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
	7	*
	8	* Copyright (C) 2006 Nokia Corporation
	9	* Copyright (C) 2004 Texas Instruments, Inc.
	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License
	13	* version 2 as published by the Free Software Foundation.
	14	*
	15	* This program is distributed in the hope that it will be useful, but
	16	* WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	23	* 02110-1301 USA
	24	*
	25	*/
	26
	27	#ifndef __ASM_ARM_ARCH_OMAP2_EAC_H
	28	#define __ASM_ARM_ARCH_OMAP2_EAC_H
	29
a09e64fb RK	30	#include <mach/io.h>
a09e64fb RK	31	#include <mach/hardware.h>
8777297b KS	32	#include <asm/irq.h>
8777297b KS	33
8777297b KS	34	#include <sound/core.h>
	35
	36	/* master codec clock source */
	37	#define EAC_MCLK_EXT_MASK 0x100
	38	enum eac_mclk_src {
	39	EAC_MCLK_INT_11290000, /* internal 96 MHz / 8.5 = 11.29 Mhz */
	40	EAC_MCLK_EXT_11289600 = EAC_MCLK_EXT_MASK,
	41	EAC_MCLK_EXT_12288000,
	42	EAC_MCLK_EXT_2x11289600,
	43	EAC_MCLK_EXT_2x12288000,
	44	};
	45
	46	/* codec port interface mode */
	47	enum eac_codec_mode {
	48	EAC_CODEC_PCM,
	49	EAC_CODEC_AC97,
	50	EAC_CODEC_I2S_MASTER, /* codec port, I.e. EAC is the master */
	51	EAC_CODEC_I2S_SLAVE,
	52	};
	53
	54	/* configuration structure for I2S mode */
	55	struct eac_i2s_conf {
	56	/* if enabled, then first data slot (left channel) is signaled as
	57	* positive level of frame sync EAC.AC_FS */
	58	unsigned polarity_changed_mode:1;
	59	/* if enabled, then serial data starts one clock cycle after the
	60	* of EAC.AC_FS for first audio slot */
	61	unsigned sync_delay_enable:1;
	62	};
	63
	64	/* configuration structure for EAC codec port */
	65	struct eac_codec {
	66	enum eac_mclk_src mclk_src;
	67
	68	enum eac_codec_mode codec_mode;
	69	union {
	70	struct eac_i2s_conf i2s;
	71	} codec_conf;
	72
	73	int default_rate; /* audio sampling rate */
	74
	75	int (* set_power)(void *private_data, int dac, int adc);
	76	int (* register_controls)(void *private_data,
	77	struct snd_card *card);
	78	const char *short_name;
	79
	80	void *private_data;
	81	};
	82
	83	/* structure for passing platform dependent data to the EAC driver */
	84	struct eac_platform_data {
	85	int (* init)(struct device *eac_dev);
	86	void (* cleanup)(struct device *eac_dev);
	87	/* these callbacks are used to configure & control external MCLK
	88	* source. NULL if not used */
	89	int (* enable_ext_clocks)(struct device *eac_dev);
	90	void (* disable_ext_clocks)(struct device *eac_dev);
	91	};
	92
	93	extern void omap_init_eac(struct eac_platform_data *pdata);
	94
	95	extern int eac_register_codec(struct device eac_dev, struct eac_codec codec);
	96	extern void eac_unregister_codec(struct device *eac_dev);
	97
98	extern int eac_set_mode(struct device *eac_dev, int play, int rec);
99
100	#endif /* __ASM_ARM_ARCH_OMAP2_EAC_H */