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1/* SPDX-License-Identifier: GPL-2.0-or-later */
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>
8 */
9
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
15/*
16 *
17 */
18
19struct media_device;
20struct media_intf_devnode;
21
22#define MAX_CARD_INTERFACES 16
23
24struct snd_usb_audio {
25 int index;
26 struct usb_device *dev;
27 struct snd_card *card;
28 struct usb_interface *intf[MAX_CARD_INTERFACES];
29 u32 usb_id;
30 struct mutex mutex;
31 unsigned int system_suspend;
32 atomic_t active;
33 atomic_t shutdown;
34 atomic_t usage_count;
35 wait_queue_head_t shutdown_wait;
36 unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
37 unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
38 unsigned int setup_fmt_after_resume_quirk:1; /* setup the format to interface after resume */
39 unsigned int need_delayed_register:1; /* warn for delayed registration */
40 int num_interfaces;
41 int num_suspended_intf;
42 int sample_rate_read_error;
43
44 int badd_profile; /* UAC3 BADD profile */
45
46 struct list_head pcm_list; /* list of pcm streams */
47 struct list_head ep_list; /* list of audio-related endpoints */
48 int pcm_devs;
49
50 struct list_head midi_list; /* list of midi interfaces */
51
52 struct list_head mixer_list; /* list of mixer interfaces */
53
54 int setup; /* from the 'device_setup' module param */
55 bool autoclock; /* from the 'autoclock' module param */
56 bool keep_iface; /* keep interface/altset after closing
57 * or parameter change
58 */
59
60 struct usb_host_interface *ctrl_intf; /* the audio control interface */
61 struct media_device *media_dev;
62 struct media_intf_devnode *ctl_intf_media_devnode;
63};
64
65#define usb_audio_err(chip, fmt, args...) \
66 dev_err(&(chip)->dev->dev, fmt, ##args)
67#define usb_audio_warn(chip, fmt, args...) \
68 dev_warn(&(chip)->dev->dev, fmt, ##args)
69#define usb_audio_info(chip, fmt, args...) \
70 dev_info(&(chip)->dev->dev, fmt, ##args)
71#define usb_audio_dbg(chip, fmt, args...) \
72 dev_dbg(&(chip)->dev->dev, fmt, ##args)
73
74/*
75 * Information about devices with broken descriptors
76 */
77
78/* special values for .ifnum */
79#define QUIRK_NO_INTERFACE -2
80#define QUIRK_ANY_INTERFACE -1
81
82enum quirk_type {
83 QUIRK_IGNORE_INTERFACE,
84 QUIRK_COMPOSITE,
85 QUIRK_AUTODETECT,
86 QUIRK_MIDI_STANDARD_INTERFACE,
87 QUIRK_MIDI_FIXED_ENDPOINT,
88 QUIRK_MIDI_YAMAHA,
89 QUIRK_MIDI_ROLAND,
90 QUIRK_MIDI_MIDIMAN,
91 QUIRK_MIDI_NOVATION,
92 QUIRK_MIDI_RAW_BYTES,
93 QUIRK_MIDI_EMAGIC,
94 QUIRK_MIDI_CME,
95 QUIRK_MIDI_AKAI,
96 QUIRK_MIDI_US122L,
97 QUIRK_MIDI_FTDI,
98 QUIRK_MIDI_CH345,
99 QUIRK_AUDIO_STANDARD_INTERFACE,
100 QUIRK_AUDIO_FIXED_ENDPOINT,
101 QUIRK_AUDIO_EDIROL_UAXX,
102 QUIRK_AUDIO_ALIGN_TRANSFER,
103 QUIRK_AUDIO_STANDARD_MIXER,
104 QUIRK_SETUP_FMT_AFTER_RESUME,
105 QUIRK_SETUP_DISABLE_AUTOSUSPEND,
106
107 QUIRK_TYPE_COUNT
108};
109
110struct snd_usb_audio_quirk {
111 const char *vendor_name;
112 const char *product_name;
113 const char *profile_name; /* override the card->longname */
114 int16_t ifnum;
115 uint16_t type;
116 bool shares_media_device;
117 const void *data;
118};
119
120#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
121#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
122#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
123
124int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
125void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
126
127extern bool snd_usb_use_vmalloc;
128extern bool snd_usb_skip_validation;
129
130#endif /* __USBAUDIO_H */
1/* SPDX-License-Identifier: GPL-2.0-or-later */
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>
8 */
9
10/* handling of USB vendor/product ID pairs as 32-bit numbers */
11#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product))
12#define USB_ID_VENDOR(id) ((id) >> 16)
13#define USB_ID_PRODUCT(id) ((u16)(id))
14
15/*
16 *
17 */
18
19struct media_device;
20struct media_intf_devnode;
21
22#define MAX_CARD_INTERFACES 16
23
24struct snd_usb_audio {
25 int index;
26 struct usb_device *dev;
27 struct snd_card *card;
28 struct usb_interface *intf[MAX_CARD_INTERFACES];
29 u32 usb_id;
30 uint16_t quirk_type;
31 struct mutex mutex;
32 unsigned int system_suspend;
33 atomic_t active;
34 atomic_t shutdown;
35 atomic_t usage_count;
36 wait_queue_head_t shutdown_wait;
37 unsigned int quirk_flags;
38 unsigned int need_delayed_register:1; /* warn for delayed registration */
39 int num_interfaces;
40 int last_iface;
41 int num_suspended_intf;
42 int sample_rate_read_error;
43
44 int badd_profile; /* UAC3 BADD profile */
45
46 struct list_head pcm_list; /* list of pcm streams */
47 struct list_head ep_list; /* list of audio-related endpoints */
48 struct list_head iface_ref_list; /* list of interface refcounts */
49 struct list_head clock_ref_list; /* list of clock refcounts */
50 int pcm_devs;
51
52 struct list_head midi_list; /* list of midi interfaces */
53
54 struct list_head mixer_list; /* list of mixer interfaces */
55
56 int setup; /* from the 'device_setup' module param */
57 bool generic_implicit_fb; /* from the 'implicit_fb' module param */
58 bool autoclock; /* from the 'autoclock' module param */
59
60 bool lowlatency; /* from the 'lowlatency' module param */
61 struct usb_host_interface *ctrl_intf; /* the audio control interface */
62 struct media_device *media_dev;
63 struct media_intf_devnode *ctl_intf_media_devnode;
64};
65
66#define USB_AUDIO_IFACE_UNUSED ((void *)-1L)
67
68#define usb_audio_err(chip, fmt, args...) \
69 dev_err(&(chip)->dev->dev, fmt, ##args)
70#define usb_audio_warn(chip, fmt, args...) \
71 dev_warn(&(chip)->dev->dev, fmt, ##args)
72#define usb_audio_info(chip, fmt, args...) \
73 dev_info(&(chip)->dev->dev, fmt, ##args)
74#define usb_audio_dbg(chip, fmt, args...) \
75 dev_dbg(&(chip)->dev->dev, fmt, ##args)
76
77/*
78 * Information about devices with broken descriptors
79 */
80
81/* special values for .ifnum */
82#define QUIRK_NODEV_INTERFACE -3 /* return -ENODEV */
83#define QUIRK_NO_INTERFACE -2
84#define QUIRK_ANY_INTERFACE -1
85
86enum quirk_type {
87 QUIRK_IGNORE_INTERFACE,
88 QUIRK_COMPOSITE,
89 QUIRK_AUTODETECT,
90 QUIRK_MIDI_STANDARD_INTERFACE,
91 QUIRK_MIDI_FIXED_ENDPOINT,
92 QUIRK_MIDI_YAMAHA,
93 QUIRK_MIDI_ROLAND,
94 QUIRK_MIDI_MIDIMAN,
95 QUIRK_MIDI_NOVATION,
96 QUIRK_MIDI_RAW_BYTES,
97 QUIRK_MIDI_EMAGIC,
98 QUIRK_MIDI_CME,
99 QUIRK_MIDI_AKAI,
100 QUIRK_MIDI_US122L,
101 QUIRK_MIDI_FTDI,
102 QUIRK_MIDI_CH345,
103 QUIRK_AUDIO_STANDARD_INTERFACE,
104 QUIRK_AUDIO_FIXED_ENDPOINT,
105 QUIRK_AUDIO_EDIROL_UAXX,
106 QUIRK_AUDIO_STANDARD_MIXER,
107
108 QUIRK_TYPE_COUNT
109};
110
111struct snd_usb_audio_quirk {
112 const char *vendor_name;
113 const char *product_name;
114 int16_t ifnum;
115 uint16_t type;
116 const void *data;
117};
118
119#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
120#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
121#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
122
123int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
124void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
125
126extern bool snd_usb_use_vmalloc;
127extern bool snd_usb_skip_validation;
128
129/*
130 * Driver behavior quirk flags, stored in chip->quirk_flags
131 *
132 * QUIRK_FLAG_GET_SAMPLE_RATE:
133 * Skip reading sample rate for devices, as some devices behave inconsistently
134 * or return error
135 * QUIRK_FLAG_SHARE_MEDIA_DEVICE:
136 * Create Media Controller API entries
137 * QUIRK_FLAG_ALIGN_TRANSFER:
138 * Allow alignment on audio sub-slot (channel samples) rather than on audio
139 * slots (audio frames)
140 * QUIRK_TX_LENGTH:
141 * Add length specifier to transfers
142 * QUIRK_FLAG_PLAYBACK_FIRST:
143 * Start playback stream at first even in implement feedback mode
144 * QUIRK_FLAG_SKIP_CLOCK_SELECTOR:
145 * Skip clock selector setup; the device may reset to invalid state
146 * QUIRK_FLAG_IGNORE_CLOCK_SOURCE:
147 * Ignore errors from clock source search; i.e. hardcoded clock
148 * QUIRK_FLAG_ITF_USB_DSD_DAC:
149 * Indicates the device is for ITF-USB DSD based DACs that need a vendor cmd
150 * to switch between PCM and native DSD mode
151 * QUIRK_FLAG_CTL_MSG_DELAY:
152 * Add a delay of 20ms at each control message handling
153 * QUIRK_FLAG_CTL_MSG_DELAY_1M:
154 * Add a delay of 1-2ms at each control message handling
155 * QUIRK_FLAG_CTL_MSG_DELAY_5M:
156 * Add a delay of 5-6ms at each control message handling
157 * QUIRK_FLAG_IFACE_DELAY:
158 * Add a delay of 50ms at each interface setup
159 * QUIRK_FLAG_VALIDATE_RATES:
160 * Perform sample rate validations at probe
161 * QUIRK_FLAG_DISABLE_AUTOSUSPEND:
162 * Disable runtime PM autosuspend
163 * QUIRK_FLAG_IGNORE_CTL_ERROR:
164 * Ignore errors for mixer access
165 * QUIRK_FLAG_DSD_RAW:
166 * Support generic DSD raw U32_BE format
167 * QUIRK_FLAG_SET_IFACE_FIRST:
168 * Set up the interface at first like UAC1
169 * QUIRK_FLAG_GENERIC_IMPLICIT_FB
170 * Apply the generic implicit feedback sync mode (same as implicit_fb=1 option)
171 * QUIRK_FLAG_SKIP_IMPLICIT_FB
172 * Don't apply implicit feedback sync mode
173 * QUIRK_FLAG_IFACE_SKIP_CLOSE
174 * Don't closed interface during setting sample rate
175 * QUIRK_FLAG_FORCE_IFACE_RESET
176 * Force an interface reset whenever stopping & restarting a stream
177 * (e.g. after xrun)
178 * QUIRK_FLAG_FIXED_RATE
179 * Do not set PCM rate (frequency) when only one rate is available
180 * for the given endpoint.
181 */
182
183#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0)
184#define QUIRK_FLAG_SHARE_MEDIA_DEVICE (1U << 1)
185#define QUIRK_FLAG_ALIGN_TRANSFER (1U << 2)
186#define QUIRK_FLAG_TX_LENGTH (1U << 3)
187#define QUIRK_FLAG_PLAYBACK_FIRST (1U << 4)
188#define QUIRK_FLAG_SKIP_CLOCK_SELECTOR (1U << 5)
189#define QUIRK_FLAG_IGNORE_CLOCK_SOURCE (1U << 6)
190#define QUIRK_FLAG_ITF_USB_DSD_DAC (1U << 7)
191#define QUIRK_FLAG_CTL_MSG_DELAY (1U << 8)
192#define QUIRK_FLAG_CTL_MSG_DELAY_1M (1U << 9)
193#define QUIRK_FLAG_CTL_MSG_DELAY_5M (1U << 10)
194#define QUIRK_FLAG_IFACE_DELAY (1U << 11)
195#define QUIRK_FLAG_VALIDATE_RATES (1U << 12)
196#define QUIRK_FLAG_DISABLE_AUTOSUSPEND (1U << 13)
197#define QUIRK_FLAG_IGNORE_CTL_ERROR (1U << 14)
198#define QUIRK_FLAG_DSD_RAW (1U << 15)
199#define QUIRK_FLAG_SET_IFACE_FIRST (1U << 16)
200#define QUIRK_FLAG_GENERIC_IMPLICIT_FB (1U << 17)
201#define QUIRK_FLAG_SKIP_IMPLICIT_FB (1U << 18)
202#define QUIRK_FLAG_IFACE_SKIP_CLOSE (1U << 19)
203#define QUIRK_FLAG_FORCE_IFACE_RESET (1U << 20)
204#define QUIRK_FLAG_FIXED_RATE (1U << 21)
205
206#endif /* __USBAUDIO_H */