[linux.git] / sound / aoa / aoa.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Apple Onboard Audio definitions
 *
 * Copyright 2006 Johannes Berg <[email protected]>
 */

#ifndef __AOA_H
#define __AOA_H
#include <asm/prom.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/asound.h>
#include <sound/control.h>
#include "aoa-gpio.h"
#include "soundbus/soundbus.h"

#define MAX_CODEC_NAME_LEN	32

struct aoa_codec {
	char	name[MAX_CODEC_NAME_LEN];

	struct module *owner;

	/* called when the fabric wants to init this codec.
	 * Do alsa card manipulations from here. */
	int (*init)(struct aoa_codec *codec);

	/* called when the fabric is done with the codec.
	 * The alsa card will be cleaned up so don't bother. */
	void (*exit)(struct aoa_codec *codec);

	/* May be NULL, but can be used by the fabric.
	 * Refcounting is the codec driver's responsibility */
	struct device_node *node;

	/* assigned by fabric before init() is called, points
	 * to the soundbus device. Cannot be NULL. */
	struct soundbus_dev *soundbus_dev;

	/* assigned by the fabric before init() is called, points
	 * to the fabric's gpio runtime record for the relevant
	 * device. */
	struct gpio_runtime *gpio;

	/* assigned by the fabric before init() is called, contains
	 * a codec specific bitmask of what outputs and inputs are
	 * actually connected */
	u32 connected;

	/* data the fabric can associate with this structure */
	void *fabric_data;

	/* private! */
	struct list_head list;
	struct aoa_fabric *fabric;
};

/* return 0 on success */
extern int
aoa_codec_register(struct aoa_codec *codec);
extern void
aoa_codec_unregister(struct aoa_codec *codec);

#define MAX_LAYOUT_NAME_LEN	32

struct aoa_fabric {
	char	name[MAX_LAYOUT_NAME_LEN];

	struct module *owner;

	/* once codecs register, they are passed here after.
	 * They are of course not initialised, since the
	 * fabric is responsible for initialising some fields
	 * in the codec structure! */
	int (*found_codec)(struct aoa_codec *codec);
	/* called for each codec when it is removed,
	 * also in the case that aoa_fabric_unregister
	 * is called and all codecs are removed
	 * from this fabric.
	 * Also called if found_codec returned 0 but
	 * the codec couldn't initialise. */
	void (*remove_codec)(struct aoa_codec *codec);
	/* If found_codec returned 0, and the codec
	 * could be initialised, this is called. */
	void (*attached_codec)(struct aoa_codec *codec);
};

/* return 0 on success, -EEXIST if another fabric is
 * registered, -EALREADY if the same fabric is registered.
 * Passing NULL can be used to test for the presence
 * of another fabric, if -EALREADY is returned there is
 * no other fabric present.
 * In the case that the function returns -EALREADY
 * and the fabric passed is not NULL, all codecs
 * that are not assigned yet are passed to the fabric
 * again for reconsideration. */
extern int
aoa_fabric_register(struct aoa_fabric *fabric, struct device *dev);

/* it is vital to call this when the fabric exits!
 * When calling, the remove_codec will be called
 * for all codecs, unless it is NULL. */
extern void
aoa_fabric_unregister(struct aoa_fabric *fabric);

/* if for some reason you want to get rid of a codec
 * before the fabric is removed, use this.
 * Note that remove_codec is called for it! */
extern void
aoa_fabric_unlink_codec(struct aoa_codec *codec);

/* alsa help methods */
struct aoa_card {
	struct snd_card *alsa_card;
};
        
extern int aoa_snd_device_new(enum snd_device_type type,
	void * device_data, struct snd_device_ops * ops);
extern struct snd_card *aoa_get_card(void);
extern int aoa_snd_ctl_add(struct snd_kcontrol* control);

/* GPIO stuff */
extern struct gpio_methods *pmf_gpio_methods;
extern struct gpio_methods *ftr_gpio_methods;
/* extern struct gpio_methods *map_gpio_methods; */

#endif /* __AOA_H */
Commit	Line	Data
d6869352	1	/* SPDX-License-Identifier: GPL-2.0-only */
f3d9478b JB	2	/*
	3	* Apple Onboard Audio definitions
	4	*
	5	* Copyright 2006 Johannes Berg <[email protected]>
f3d9478b JB	6	*/
	7
	8	#ifndef __AOA_H
	9	#define __AOA_H
	10	#include <asm/prom.h>
	11	#include <linux/module.h>
f3d9478b JB	12	#include <sound/core.h>
	13	#include <sound/asound.h>
	14	#include <sound/control.h>
	15	#include "aoa-gpio.h"
	16	#include "soundbus/soundbus.h"
	17
	18	#define MAX_CODEC_NAME_LEN 32
	19
	20	struct aoa_codec {
	21	char name[MAX_CODEC_NAME_LEN];
	22
	23	struct module *owner;
	24
	25	/* called when the fabric wants to init this codec.
	26	* Do alsa card manipulations from here. */
	27	int (init)(struct aoa_codec codec);
	28
	29	/* called when the fabric is done with the codec.
	30	* The alsa card will be cleaned up so don't bother. */
	31	void (exit)(struct aoa_codec codec);
	32
	33	/* May be NULL, but can be used by the fabric.
	34	* Refcounting is the codec driver's responsibility */
	35	struct device_node *node;
	36
	37	/* assigned by fabric before init() is called, points
	38	* to the soundbus device. Cannot be NULL. */
	39	struct soundbus_dev *soundbus_dev;
	40
	41	/* assigned by the fabric before init() is called, points
	42	* to the fabric's gpio runtime record for the relevant
	43	* device. */
	44	struct gpio_runtime *gpio;
	45
	46	/* assigned by the fabric before init() is called, contains
	47	* a codec specific bitmask of what outputs and inputs are
	48	* actually connected */
	49	u32 connected;
	50
	51	/* data the fabric can associate with this structure */
	52	void *fabric_data;
	53
	54	/* private! */
	55	struct list_head list;
	56	struct aoa_fabric *fabric;
	57	};
	58
	59	/* return 0 on success */
	60	extern int
	61	aoa_codec_register(struct aoa_codec *codec);
	62	extern void
	63	aoa_codec_unregister(struct aoa_codec *codec);
	64
	65	#define MAX_LAYOUT_NAME_LEN 32
	66
	67	struct aoa_fabric {
	68	char name[MAX_LAYOUT_NAME_LEN];
	69
	70	struct module *owner;
	71
	72	/* once codecs register, they are passed here after.
	73	* They are of course not initialised, since the
	74	* fabric is responsible for initialising some fields
	75	* in the codec structure! */
76	int (found_codec)(struct aoa_codec codec);
77	/* called for each codec when it is removed,
78	* also in the case that aoa_fabric_unregister
79	* is called and all codecs are removed
80	* from this fabric.
81	* Also called if found_codec returned 0 but
82	* the codec couldn't initialise. */
83	void (remove_codec)(struct aoa_codec codec);
84	/* If found_codec returned 0, and the codec
85	* could be initialised, this is called. */
86	void (attached_codec)(struct aoa_codec codec);
87	};
88
89	/* return 0 on success, -EEXIST if another fabric is
90	* registered, -EALREADY if the same fabric is registered.
91	* Passing NULL can be used to test for the presence
92	* of another fabric, if -EALREADY is returned there is
93	* no other fabric present.
94	* In the case that the function returns -EALREADY
95	* and the fabric passed is not NULL, all codecs
96	* that are not assigned yet are passed to the fabric
97	* again for reconsideration. */
98	extern int
61e77107	99	aoa_fabric_register(struct aoa_fabric fabric, struct device dev);
f3d9478b JB	100
	101	/* it is vital to call this when the fabric exits!
	102	* When calling, the remove_codec will be called
	103	* for all codecs, unless it is NULL. */
	104	extern void
	105	aoa_fabric_unregister(struct aoa_fabric *fabric);
	106
	107	/* if for some reason you want to get rid of a codec
	108	* before the fabric is removed, use this.
	109	* Note that remove_codec is called for it! */
	110	extern void
	111	aoa_fabric_unlink_codec(struct aoa_codec *codec);
	112
	113	/* alsa help methods */
	114	struct aoa_card {
	115	struct snd_card *alsa_card;
	116	};
	117
9ce50543	118	extern int aoa_snd_device_new(enum snd_device_type type,
f3d9478b JB	119	void * device_data, struct snd_device_ops * ops);
	120	extern struct snd_card *aoa_get_card(void);
	121	extern int aoa_snd_ctl_add(struct snd_kcontrol* control);
	122
	123	/* GPIO stuff */
	124	extern struct gpio_methods *pmf_gpio_methods;
	125	extern struct gpio_methods *ftr_gpio_methods;
	126	/* extern struct gpio_methods map_gpio_methods; /
	127
	128	#endif /* __AOA_H */