[linux-block.git] / sound / usb / usbaudio.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __USBAUDIO_H
#define __USBAUDIO_H
/*
 *   (Tentative) USB Audio Driver for ALSA
 *
 *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
 */

/* handling of USB vendor/product ID pairs as 32-bit numbers */
#define USB_ID(vendor, product) (((vendor) << 16) | (product))
#define USB_ID_VENDOR(id) ((id) >> 16)
#define USB_ID_PRODUCT(id) ((u16)(id))

/*
 *
 */

struct media_device;
struct media_intf_devnode;

struct snd_usb_audio {
	int index;
	struct usb_device *dev;
	struct snd_card *card;
	struct usb_interface *pm_intf;
	u32 usb_id;
	struct mutex mutex;
	unsigned int autosuspended:1;	
	atomic_t active;
	atomic_t shutdown;
	atomic_t usage_count;
	wait_queue_head_t shutdown_wait;
	unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
	unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
	
	int num_interfaces;
	int num_suspended_intf;
	int sample_rate_read_error;

	int badd_profile;		/* UAC3 BADD profile */

	struct list_head pcm_list;	/* list of pcm streams */
	struct list_head ep_list;	/* list of audio-related endpoints */
	int pcm_devs;

	struct list_head midi_list;	/* list of midi interfaces */

	struct list_head mixer_list;	/* list of mixer interfaces */

	int setup;			/* from the 'device_setup' module param */
	bool autoclock;			/* from the 'autoclock' module param */
	bool keep_iface;		/* keep interface/altset after closing
					 * or parameter change
					 */

	struct usb_host_interface *ctrl_intf;	/* the audio control interface */
	struct media_device *media_dev;
	struct media_intf_devnode *ctl_intf_media_devnode;
};

#define usb_audio_err(chip, fmt, args...) \
	dev_err(&(chip)->dev->dev, fmt, ##args)
#define usb_audio_warn(chip, fmt, args...) \
	dev_warn(&(chip)->dev->dev, fmt, ##args)
#define usb_audio_info(chip, fmt, args...) \
	dev_info(&(chip)->dev->dev, fmt, ##args)
#define usb_audio_dbg(chip, fmt, args...) \
	dev_dbg(&(chip)->dev->dev, fmt, ##args)

/*
 * Information about devices with broken descriptors
 */

/* special values for .ifnum */
#define QUIRK_NO_INTERFACE		-2
#define QUIRK_ANY_INTERFACE		-1

enum quirk_type {
	QUIRK_IGNORE_INTERFACE,
	QUIRK_COMPOSITE,
	QUIRK_AUTODETECT,
	QUIRK_MIDI_STANDARD_INTERFACE,
	QUIRK_MIDI_FIXED_ENDPOINT,
	QUIRK_MIDI_YAMAHA,
	QUIRK_MIDI_ROLAND,
	QUIRK_MIDI_MIDIMAN,
	QUIRK_MIDI_NOVATION,
	QUIRK_MIDI_RAW_BYTES,
	QUIRK_MIDI_EMAGIC,
	QUIRK_MIDI_CME,
	QUIRK_MIDI_AKAI,
	QUIRK_MIDI_US122L,
	QUIRK_MIDI_FTDI,
	QUIRK_MIDI_CH345,
	QUIRK_AUDIO_STANDARD_INTERFACE,
	QUIRK_AUDIO_FIXED_ENDPOINT,
	QUIRK_AUDIO_EDIROL_UAXX,
	QUIRK_AUDIO_ALIGN_TRANSFER,
	QUIRK_AUDIO_STANDARD_MIXER,

	QUIRK_TYPE_COUNT
};

struct snd_usb_audio_quirk {
	const char *vendor_name;
	const char *product_name;
	const char *profile_name;	/* override the card->longname */
	int16_t ifnum;
	uint16_t type;
	bool shares_media_device;
	const void *data;
};

#define combine_word(s)    ((*(s)) | ((unsigned int)(s)[1] << 8))
#define combine_triple(s)  (combine_word(s) | ((unsigned int)(s)[2] << 16))
#define combine_quad(s)    (combine_triple(s) | ((unsigned int)(s)[3] << 24))

int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);

extern bool snd_usb_use_vmalloc;

#endif /* __USBAUDIO_H */
Commit	Line	Data
1a59d1b8	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	#ifndef __USBAUDIO_H
	3	#define __USBAUDIO_H
	4	/*
	5	* (Tentative) USB Audio Driver for ALSA
	6	*
	7	* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
1da177e4 LT	8	*/
1da177e4 LT	9
27d10f56 CL	10	/* handling of USB vendor/product ID pairs as 32-bit numbers */
	11	#define USB_ID(vendor, product) (((vendor) << 16) \| (product))
	12	#define USB_ID_VENDOR(id) ((id) >> 16)
	13	#define USB_ID_PRODUCT(id) ((u16)(id))
	14
1da177e4	15	/*
e5779998	16	*
1da177e4 LT	17	*/
1da177e4 LT	18
66354f18 SK	19	struct media_device;
	20	struct media_intf_devnode;
	21
1da177e4 LT	22	struct snd_usb_audio {
	23	int index;
	24	struct usb_device *dev;
86e07d34	25	struct snd_card *card;
88a8516a	26	struct usb_interface *pm_intf;
27d10f56	27	u32 usb_id;
596580d0	28	struct mutex mutex;
88a8516a	29	unsigned int autosuspended:1;
47ab1545 TI	30	atomic_t active;
	31	atomic_t shutdown;
	32	atomic_t usage_count;
	33	wait_queue_head_t shutdown_wait;
98e89f60	34	unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
e0570446	35	unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
88a8516a	36
1da177e4	37	int num_interfaces;
f85bf29c	38	int num_suspended_intf;
57dd5414	39	int sample_rate_read_error;
1da177e4	40
17156f23 RB	41	int badd_profile; /* UAC3 BADD profile */
17156f23 RB	42
1da177e4	43	struct list_head pcm_list; /* list of pcm streams */
8fdff6a3	44	struct list_head ep_list; /* list of audio-related endpoints */
1da177e4 LT	45	int pcm_devs;
	46
	47	struct list_head midi_list; /* list of midi interfaces */
1da177e4	48
84957a8a	49	struct list_head mixer_list; /* list of mixer interfaces */
e5779998 DM	50
e5779998 DM	51	int setup; /* from the 'device_setup' module param */
ef02e29b	52	bool autoclock; /* from the 'autoclock' module param */
8a463225 TI	53	bool keep_iface; /* keep interface/altset after closing
	54	* or parameter change
	55	*/
79f920fb DM	56
79f920fb DM	57	struct usb_host_interface ctrl_intf; / the audio control interface */
66354f18 SK	58	struct media_device *media_dev;
66354f18 SK	59	struct media_intf_devnode *ctl_intf_media_devnode;
1da177e4 LT	60	};
1da177e4 LT	61
0ba41d91 TI	62	#define usb_audio_err(chip, fmt, args...) \
	63	dev_err(&(chip)->dev->dev, fmt, ##args)
	64	#define usb_audio_warn(chip, fmt, args...) \
	65	dev_warn(&(chip)->dev->dev, fmt, ##args)
	66	#define usb_audio_info(chip, fmt, args...) \
	67	dev_info(&(chip)->dev->dev, fmt, ##args)
	68	#define usb_audio_dbg(chip, fmt, args...) \
	69	dev_dbg(&(chip)->dev->dev, fmt, ##args)
	70
1da177e4 LT	71	/*
	72	* Information about devices with broken descriptors
	73	*/
	74
	75	/* special values for .ifnum */
	76	#define QUIRK_NO_INTERFACE -2
	77	#define QUIRK_ANY_INTERFACE -1
	78
854af957 CL	79	enum quirk_type {
	80	QUIRK_IGNORE_INTERFACE,
	81	QUIRK_COMPOSITE,
aafe77cc	82	QUIRK_AUTODETECT,
854af957 CL	83	QUIRK_MIDI_STANDARD_INTERFACE,
	84	QUIRK_MIDI_FIXED_ENDPOINT,
	85	QUIRK_MIDI_YAMAHA,
aafe77cc	86	QUIRK_MIDI_ROLAND,
854af957 CL	87	QUIRK_MIDI_MIDIMAN,
854af957 CL	88	QUIRK_MIDI_NOVATION,
c7f57216	89	QUIRK_MIDI_RAW_BYTES,
854af957	90	QUIRK_MIDI_EMAGIC,
cc7a59bd	91	QUIRK_MIDI_CME,
4434ade8	92	QUIRK_MIDI_AKAI,
030a07e4	93	QUIRK_MIDI_US122L,
1ef0e0a0	94	QUIRK_MIDI_FTDI,
1ca8b201	95	QUIRK_MIDI_CH345,
854af957 CL	96	QUIRK_AUDIO_STANDARD_INTERFACE,
854af957 CL	97	QUIRK_AUDIO_FIXED_ENDPOINT,
310e0dc0	98	QUIRK_AUDIO_EDIROL_UAXX,
52a7a583	99	QUIRK_AUDIO_ALIGN_TRANSFER,
014950b0	100	QUIRK_AUDIO_STANDARD_MIXER,
854af957 CL	101
	102	QUIRK_TYPE_COUNT
	103	};
1da177e4	104
1da177e4 LT	105	struct snd_usb_audio_quirk {
	106	const char *vendor_name;
	107	const char *product_name;
07eca5fc	108	const char profile_name; / override the card->longname */
1da177e4	109	int16_t ifnum;
854af957	110	uint16_t type;
66354f18	111	bool shares_media_device;
1da177e4 LT	112	const void *data;
	113	};
	114
f4950882	115	#define combine_word(s) ((*(s)) \| ((unsigned int)(s)[1] << 8))
1da177e4 LT	116	#define combine_triple(s) (combine_word(s) \| ((unsigned int)(s)[2] << 16))
	117	#define combine_quad(s) (combine_triple(s) \| ((unsigned int)(s)[3] << 24))
	118
47ab1545 TI	119	int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
	120	void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
	121
f274baa4 TI	122	extern bool snd_usb_use_vmalloc;
f274baa4 TI	123
1da177e4	124	#endif /* __USBAUDIO_H */