[mirror_ubuntu-jammy-kernel.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;

#define MAX_CARD_INTERFACES	16

struct snd_usb_audio {
	int index;
	struct usb_device *dev;
	struct snd_card *card;
	struct usb_interface *intf[MAX_CARD_INTERFACES];
	u32 usb_id;
	uint16_t quirk_type;
	struct mutex mutex;
	unsigned int system_suspend;
	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 */
	unsigned int need_delayed_register:1; /* warn for delayed registration */
	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 */
	struct list_head iface_ref_list; /* list of interface refcounts */
	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 generic_implicit_fb;	/* from the 'implicit_fb' module param */
	bool autoclock;			/* from the 'autoclock' module param */

	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_SETUP_FMT_AFTER_RESUME,
	QUIRK_SETUP_DISABLE_AUTOSUSPEND,

	QUIRK_TYPE_COUNT
};

struct snd_usb_audio_quirk {
	const char *vendor_name;
	const char *product_name;
	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;
extern bool snd_usb_skip_validation;

#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
88d8822d TI	22	#define MAX_CARD_INTERFACES 16
88d8822d TI	23
1da177e4 LT	24	struct snd_usb_audio {
	25	int index;
	26	struct usb_device *dev;
86e07d34	27	struct snd_card *card;
88d8822d	28	struct usb_interface *intf[MAX_CARD_INTERFACES];
27d10f56	29	u32 usb_id;
97991108	30	uint16_t quirk_type;
596580d0	31	struct mutex mutex;
862b2509	32	unsigned int system_suspend;
47ab1545 TI	33	atomic_t active;
	34	atomic_t shutdown;
	35	atomic_t usage_count;
	36	wait_queue_head_t shutdown_wait;
98e89f60	37	unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
e0570446	38	unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
a4aad563	39	unsigned int need_delayed_register:1; /* warn for delayed registration */
1da177e4	40	int num_interfaces;
f85bf29c	41	int num_suspended_intf;
57dd5414	42	int sample_rate_read_error;
1da177e4	43
17156f23 RB	44	int badd_profile; /* UAC3 BADD profile */
17156f23 RB	45
1da177e4	46	struct list_head pcm_list; /* list of pcm streams */
8fdff6a3	47	struct list_head ep_list; /* list of audio-related endpoints */
00272c61	48	struct list_head iface_ref_list; /* list of interface refcounts */
1da177e4 LT	49	int pcm_devs;
	50
	51	struct list_head midi_list; /* list of midi interfaces */
1da177e4	52
84957a8a	53	struct list_head mixer_list; /* list of mixer interfaces */
e5779998 DM	54
e5779998 DM	55	int setup; /* from the 'device_setup' module param */
62abd092	56	bool generic_implicit_fb; /* from the 'implicit_fb' module param */
ef02e29b	57	bool autoclock; /* from the 'autoclock' module param */
79f920fb DM	58
79f920fb DM	59	struct usb_host_interface ctrl_intf; / the audio control interface */
66354f18 SK	60	struct media_device *media_dev;
66354f18 SK	61	struct media_intf_devnode *ctl_intf_media_devnode;
1da177e4 LT	62	};
1da177e4 LT	63
0ba41d91 TI	64	#define usb_audio_err(chip, fmt, args...) \
	65	dev_err(&(chip)->dev->dev, fmt, ##args)
	66	#define usb_audio_warn(chip, fmt, args...) \
	67	dev_warn(&(chip)->dev->dev, fmt, ##args)
	68	#define usb_audio_info(chip, fmt, args...) \
	69	dev_info(&(chip)->dev->dev, fmt, ##args)
	70	#define usb_audio_dbg(chip, fmt, args...) \
	71	dev_dbg(&(chip)->dev->dev, fmt, ##args)
	72
1da177e4 LT	73	/*
	74	* Information about devices with broken descriptors
	75	*/
	76
	77	/* special values for .ifnum */
	78	#define QUIRK_NO_INTERFACE -2
	79	#define QUIRK_ANY_INTERFACE -1
	80
854af957 CL	81	enum quirk_type {
	82	QUIRK_IGNORE_INTERFACE,
	83	QUIRK_COMPOSITE,
aafe77cc	84	QUIRK_AUTODETECT,
854af957 CL	85	QUIRK_MIDI_STANDARD_INTERFACE,
	86	QUIRK_MIDI_FIXED_ENDPOINT,
	87	QUIRK_MIDI_YAMAHA,
aafe77cc	88	QUIRK_MIDI_ROLAND,
854af957 CL	89	QUIRK_MIDI_MIDIMAN,
854af957 CL	90	QUIRK_MIDI_NOVATION,
c7f57216	91	QUIRK_MIDI_RAW_BYTES,
854af957	92	QUIRK_MIDI_EMAGIC,
cc7a59bd	93	QUIRK_MIDI_CME,
4434ade8	94	QUIRK_MIDI_AKAI,
030a07e4	95	QUIRK_MIDI_US122L,
1ef0e0a0	96	QUIRK_MIDI_FTDI,
1ca8b201	97	QUIRK_MIDI_CH345,
854af957 CL	98	QUIRK_AUDIO_STANDARD_INTERFACE,
854af957 CL	99	QUIRK_AUDIO_FIXED_ENDPOINT,
310e0dc0	100	QUIRK_AUDIO_EDIROL_UAXX,
52a7a583	101	QUIRK_AUDIO_ALIGN_TRANSFER,
014950b0	102	QUIRK_AUDIO_STANDARD_MIXER,
92adc96f	103	QUIRK_SETUP_FMT_AFTER_RESUME,
1965c436	104	QUIRK_SETUP_DISABLE_AUTOSUSPEND,
854af957 CL	105
	106	QUIRK_TYPE_COUNT
	107	};
1da177e4	108
1da177e4 LT	109	struct snd_usb_audio_quirk {
	110	const char *vendor_name;
	111	const char *product_name;
	112	int16_t ifnum;
854af957	113	uint16_t type;
66354f18	114	bool shares_media_device;
1da177e4 LT	115	const void *data;
	116	};
	117
f4950882	118	#define combine_word(s) ((*(s)) \| ((unsigned int)(s)[1] << 8))
1da177e4 LT	119	#define combine_triple(s) (combine_word(s) \| ((unsigned int)(s)[2] << 16))
	120	#define combine_quad(s) (combine_triple(s) \| ((unsigned int)(s)[3] << 24))
	121
47ab1545 TI	122	int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
	123	void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
	124
f274baa4	125	extern bool snd_usb_use_vmalloc;
f35ef592	126	extern bool snd_usb_skip_validation;
f274baa4	127
1da177e4	128	#endif /* __USBAUDIO_H */