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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/usb/usbaudio.h
downloadlinux-linaro-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/usb/usbaudio.h')
-rw-r--r--sound/usb/usbaudio.h251
1 files changed, 251 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
new file mode 100644
index 00000000000..eecbf19fcb6
--- /dev/null
+++ b/sound/usb/usbaudio.h
@@ -0,0 +1,251 @@
+#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
+ */
+
+
+/*
+ */
+
+#define USB_SUBCLASS_AUDIO_CONTROL 0x01
+#define USB_SUBCLASS_AUDIO_STREAMING 0x02
+#define USB_SUBCLASS_MIDI_STREAMING 0x03
+#define USB_SUBCLASS_VENDOR_SPEC 0xff
+
+#define CS_AUDIO_UNDEFINED 0x20
+#define CS_AUDIO_DEVICE 0x21
+#define CS_AUDIO_CONFIGURATION 0x22
+#define CS_AUDIO_STRING 0x23
+#define CS_AUDIO_INTERFACE 0x24
+#define CS_AUDIO_ENDPOINT 0x25
+
+#define HEADER 0x01
+#define INPUT_TERMINAL 0x02
+#define OUTPUT_TERMINAL 0x03
+#define MIXER_UNIT 0x04
+#define SELECTOR_UNIT 0x05
+#define FEATURE_UNIT 0x06
+#define PROCESSING_UNIT 0x07
+#define EXTENSION_UNIT 0x08
+
+#define AS_GENERAL 0x01
+#define FORMAT_TYPE 0x02
+#define FORMAT_SPECIFIC 0x03
+
+#define EP_GENERAL 0x01
+
+#define MS_GENERAL 0x01
+#define MIDI_IN_JACK 0x02
+#define MIDI_OUT_JACK 0x03
+
+/* endpoint attributes */
+#define EP_ATTR_MASK 0x0c
+#define EP_ATTR_ASYNC 0x04
+#define EP_ATTR_ADAPTIVE 0x08
+#define EP_ATTR_SYNC 0x0c
+
+/* cs endpoint attributes */
+#define EP_CS_ATTR_SAMPLE_RATE 0x01
+#define EP_CS_ATTR_PITCH_CONTROL 0x02
+#define EP_CS_ATTR_FILL_MAX 0x80
+
+/* Audio Class specific Request Codes */
+
+#define SET_CUR 0x01
+#define GET_CUR 0x81
+#define SET_MIN 0x02
+#define GET_MIN 0x82
+#define SET_MAX 0x03
+#define GET_MAX 0x83
+#define SET_RES 0x04
+#define GET_RES 0x84
+#define SET_MEM 0x05
+#define GET_MEM 0x85
+#define GET_STAT 0xff
+
+/* Terminal Control Selectors */
+
+#define COPY_PROTECT_CONTROL 0x01
+
+/* Endpoint Control Selectors */
+
+#define SAMPLING_FREQ_CONTROL 0x01
+#define PITCH_CONTROL 0x02
+
+/* Format Types */
+#define USB_FORMAT_TYPE_I 0x01
+#define USB_FORMAT_TYPE_II 0x02
+#define USB_FORMAT_TYPE_III 0x03
+
+/* type I */
+#define USB_AUDIO_FORMAT_PCM 0x01
+#define USB_AUDIO_FORMAT_PCM8 0x02
+#define USB_AUDIO_FORMAT_IEEE_FLOAT 0x03
+#define USB_AUDIO_FORMAT_ALAW 0x04
+#define USB_AUDIO_FORMAT_MU_LAW 0x05
+
+/* type II */
+#define USB_AUDIO_FORMAT_MPEG 0x1001
+#define USB_AUDIO_FORMAT_AC3 0x1002
+
+/* type III */
+#define USB_AUDIO_FORMAT_IEC1937_AC3 0x2001
+#define USB_AUDIO_FORMAT_IEC1937_MPEG1_LAYER1 0x2002
+#define USB_AUDIO_FORMAT_IEC1937_MPEG2_NOEXT 0x2003
+#define USB_AUDIO_FORMAT_IEC1937_MPEG2_EXT 0x2004
+#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER1_LS 0x2005
+#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER23_LS 0x2006
+
+
+/* maximum number of endpoints per interface */
+#define MIDI_MAX_ENDPOINTS 2
+
+/*
+ */
+
+typedef struct snd_usb_audio snd_usb_audio_t;
+
+struct snd_usb_audio {
+ int index;
+ struct usb_device *dev;
+ snd_card_t *card;
+ int shutdown;
+ int num_interfaces;
+
+ struct list_head pcm_list; /* list of pcm streams */
+ int pcm_devs;
+
+ struct list_head midi_list; /* list of midi interfaces */
+ int next_midi_device;
+
+ unsigned int ignore_ctl_error; /* for mixer */
+};
+
+/*
+ * Information about devices with broken descriptors
+ */
+
+/* special values for .ifnum */
+#define QUIRK_NO_INTERFACE -2
+#define QUIRK_ANY_INTERFACE -1
+
+/* quirk type */
+#define QUIRK_MIDI_FIXED_ENDPOINT 0
+#define QUIRK_MIDI_YAMAHA 1
+#define QUIRK_MIDI_MIDIMAN 2
+#define QUIRK_COMPOSITE 3
+#define QUIRK_AUDIO_FIXED_ENDPOINT 4
+#define QUIRK_AUDIO_STANDARD_INTERFACE 5
+#define QUIRK_MIDI_STANDARD_INTERFACE 6
+#define QUIRK_AUDIO_EDIROL_UA700_UA25 7
+#define QUIRK_AUDIO_EDIROL_UA1000 8
+#define QUIRK_IGNORE_INTERFACE 9
+#define QUIRK_MIDI_NOVATION 10
+#define QUIRK_MIDI_MOTU 11
+#define QUIRK_MIDI_EMAGIC 12
+
+typedef struct snd_usb_audio_quirk snd_usb_audio_quirk_t;
+typedef struct snd_usb_midi_endpoint_info snd_usb_midi_endpoint_info_t;
+
+struct snd_usb_audio_quirk {
+ const char *vendor_name;
+ const char *product_name;
+ int16_t ifnum;
+ int16_t type;
+ const void *data;
+};
+
+/* data for QUIRK_MIDI_FIXED_ENDPOINT */
+struct snd_usb_midi_endpoint_info {
+ int8_t out_ep; /* ep number, 0 autodetect */
+ uint8_t out_interval; /* interval for interrupt endpoints */
+ int8_t in_ep;
+ uint8_t in_interval;
+ uint16_t out_cables; /* bitmask */
+ uint16_t in_cables; /* bitmask */
+};
+
+/* for QUIRK_MIDI_YAMAHA, data is NULL */
+
+/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
+ * structure (out_cables and in_cables only) */
+
+/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
+ * structures, terminated with .ifnum = -1 */
+
+/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
+
+/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
+
+/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
+
+/* for QUIRK_IGNORE_INTERFACE, data is NULL */
+
+/* for QUIRK_MIDI_NOVATION and _MOTU, data is NULL */
+
+/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
+ * structure (out_cables and in_cables only) */
+
+/*
+ */
+
+#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))
+
+unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
+
+void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
+void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);
+
+int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout);
+
+int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif);
+
+int snd_usb_create_midi_interface(snd_usb_audio_t *chip, struct usb_interface *iface, const snd_usb_audio_quirk_t *quirk);
+void snd_usbmidi_input_stop(struct list_head* p);
+void snd_usbmidi_input_start(struct list_head* p);
+void snd_usbmidi_disconnect(struct list_head *p, struct usb_driver *driver);
+
+/*
+ * retrieve usb_interface descriptor from the host interface
+ * (conditional for compatibility with the older API)
+ */
+#ifndef get_iface_desc
+#define get_iface_desc(iface) (&(iface)->desc)
+#define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc)
+#define get_ep_desc(ep) (&(ep)->desc)
+#define get_cfg_desc(cfg) (&(cfg)->desc)
+#endif
+
+#ifndef usb_pipe_needs_resubmit
+#define usb_pipe_needs_resubmit(pipe) 1
+#endif
+
+#ifndef snd_usb_complete_callback
+#define snd_usb_complete_callback(x) (x)
+#endif
+
+#ifndef snd_usb_get_speed
+#define snd_usb_get_speed(dev) ((dev)->speed)
+#endif
+
+#endif /* __USBAUDIO_H */