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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /sound/usb/usbaudio.h
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/usb/usbaudio.h')
-rw-r--r--sound/usb/usbaudio.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
new file mode 100644
index 000000000..0206fecfd
--- /dev/null
+++ b/sound/usb/usbaudio.h
@@ -0,0 +1,135 @@
+#ifndef __USBAUDIO_H
+#define __USBAUDIO_H
+/*
+ * (Tentative) USB Audio Driver for ALSA
+ *
+ * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* handling of USB vendor/product ID pairs as 32-bit numbers */
+#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product))
+#define USB_ID_VENDOR(id) ((id) >> 16)
+#define USB_ID_PRODUCT(id) ((u16)(id))
+
+/*
+ *
+ */
+
+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 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 setup_fmt_after_resume_quirk:1; /* setup the format to interface after resume */
+ 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 */
+};
+
+#define USB_AUDIO_IFACE_UNUSED ((void *)-1L)
+
+#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_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;
+ 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 */