diff options
Diffstat (limited to 'include/linux/usb/midi.h')
| -rw-r--r-- | include/linux/usb/midi.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/include/linux/usb/midi.h b/include/linux/usb/midi.h new file mode 100644 index 000000000000..11a97d5ffd34 --- /dev/null +++ b/include/linux/usb/midi.h | |||
| @@ -0,0 +1,112 @@ | |||
| 1 | /* | ||
| 2 | * <linux/usb/midi.h> -- USB MIDI definitions. | ||
| 3 | * | ||
| 4 | * Copyright (C) 2006 Thumtronics Pty Ltd. | ||
| 5 | * Developed for Thumtronics by Grey Innovation | ||
| 6 | * Ben Williamson <ben.williamson@greyinnovation.com> | ||
| 7 | * | ||
| 8 | * This software is distributed under the terms of the GNU General Public | ||
| 9 | * License ("GPL") version 2, as published by the Free Software Foundation. | ||
| 10 | * | ||
| 11 | * This file holds USB constants and structures defined | ||
| 12 | * by the USB Device Class Definition for MIDI Devices. | ||
| 13 | * Comments below reference relevant sections of that document: | ||
| 14 | * | ||
| 15 | * http://www.usb.org/developers/devclass_docs/midi10.pdf | ||
| 16 | */ | ||
| 17 | |||
| 18 | #ifndef __LINUX_USB_MIDI_H | ||
| 19 | #define __LINUX_USB_MIDI_H | ||
| 20 | |||
| 21 | #include <linux/types.h> | ||
| 22 | |||
| 23 | /* A.1 MS Class-Specific Interface Descriptor Subtypes */ | ||
| 24 | #define USB_MS_HEADER 0x01 | ||
| 25 | #define USB_MS_MIDI_IN_JACK 0x02 | ||
| 26 | #define USB_MS_MIDI_OUT_JACK 0x03 | ||
| 27 | #define USB_MS_ELEMENT 0x04 | ||
| 28 | |||
| 29 | /* A.2 MS Class-Specific Endpoint Descriptor Subtypes */ | ||
| 30 | #define USB_MS_GENERAL 0x01 | ||
| 31 | |||
| 32 | /* A.3 MS MIDI IN and OUT Jack Types */ | ||
| 33 | #define USB_MS_EMBEDDED 0x01 | ||
| 34 | #define USB_MS_EXTERNAL 0x02 | ||
| 35 | |||
| 36 | /* 6.1.2.1 Class-Specific MS Interface Header Descriptor */ | ||
| 37 | struct usb_ms_header_descriptor { | ||
| 38 | __u8 bLength; | ||
| 39 | __u8 bDescriptorType; | ||
| 40 | __u8 bDescriptorSubtype; | ||
| 41 | __le16 bcdMSC; | ||
| 42 | __le16 wTotalLength; | ||
| 43 | } __attribute__ ((packed)); | ||
| 44 | |||
| 45 | #define USB_DT_MS_HEADER_SIZE 7 | ||
| 46 | |||
| 47 | /* 6.1.2.2 MIDI IN Jack Descriptor */ | ||
| 48 | struct usb_midi_in_jack_descriptor { | ||
| 49 | __u8 bLength; | ||
| 50 | __u8 bDescriptorType; // USB_DT_CS_INTERFACE | ||
| 51 | __u8 bDescriptorSubtype; // USB_MS_MIDI_IN_JACK | ||
| 52 | __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL | ||
| 53 | __u8 bJackID; | ||
| 54 | __u8 iJack; | ||
| 55 | } __attribute__ ((packed)); | ||
| 56 | |||
| 57 | #define USB_DT_MIDI_IN_SIZE 6 | ||
| 58 | |||
| 59 | struct usb_midi_source_pin { | ||
| 60 | __u8 baSourceID; | ||
| 61 | __u8 baSourcePin; | ||
| 62 | } __attribute__ ((packed)); | ||
| 63 | |||
| 64 | /* 6.1.2.3 MIDI OUT Jack Descriptor */ | ||
| 65 | struct usb_midi_out_jack_descriptor { | ||
| 66 | __u8 bLength; | ||
| 67 | __u8 bDescriptorType; // USB_DT_CS_INTERFACE | ||
| 68 | __u8 bDescriptorSubtype; // USB_MS_MIDI_OUT_JACK | ||
| 69 | __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL | ||
| 70 | __u8 bJackID; | ||
| 71 | __u8 bNrInputPins; // p | ||
| 72 | struct usb_midi_source_pin pins[]; // [p] | ||
| 73 | /*__u8 iJack; -- ommitted due to variable-sized pins[] */ | ||
| 74 | } __attribute__ ((packed)); | ||
| 75 | |||
| 76 | #define USB_DT_MIDI_OUT_SIZE(p) (7 + 2 * (p)) | ||
| 77 | |||
| 78 | /* As above, but more useful for defining your own descriptors: */ | ||
| 79 | #define DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(p) \ | ||
| 80 | struct usb_midi_out_jack_descriptor_##p { \ | ||
| 81 | __u8 bLength; \ | ||
| 82 | __u8 bDescriptorType; \ | ||
| 83 | __u8 bDescriptorSubtype; \ | ||
| 84 | __u8 bJackType; \ | ||
| 85 | __u8 bJackID; \ | ||
| 86 | __u8 bNrInputPins; \ | ||
| 87 | struct usb_midi_source_pin pins[p]; \ | ||
| 88 | __u8 iJack; \ | ||
| 89 | } __attribute__ ((packed)) | ||
| 90 | |||
| 91 | /* 6.2.2 Class-Specific MS Bulk Data Endpoint Descriptor */ | ||
| 92 | struct usb_ms_endpoint_descriptor { | ||
| 93 | __u8 bLength; // 4+n | ||
| 94 | __u8 bDescriptorType; // USB_DT_CS_ENDPOINT | ||
| 95 | __u8 bDescriptorSubtype; // USB_MS_GENERAL | ||
| 96 | __u8 bNumEmbMIDIJack; // n | ||
| 97 | __u8 baAssocJackID[]; // [n] | ||
| 98 | } __attribute__ ((packed)); | ||
| 99 | |||
| 100 | #define USB_DT_MS_ENDPOINT_SIZE(n) (4 + (n)) | ||
| 101 | |||
| 102 | /* As above, but more useful for defining your own descriptors: */ | ||
| 103 | #define DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(n) \ | ||
| 104 | struct usb_ms_endpoint_descriptor_##n { \ | ||
| 105 | __u8 bLength; \ | ||
| 106 | __u8 bDescriptorType; \ | ||
| 107 | __u8 bDescriptorSubtype; \ | ||
| 108 | __u8 bNumEmbMIDIJack; \ | ||
| 109 | __u8 baAssocJackID[n]; \ | ||
| 110 | } __attribute__ ((packed)) | ||
| 111 | |||
| 112 | #endif | ||