1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * <linux/usb/midi-v2.h> -- USB MIDI 2.0 definitions. |
4 | */ |
5 | |
6 | #ifndef __LINUX_USB_MIDI_V2_H |
7 | #define __LINUX_USB_MIDI_V2_H |
8 | |
9 | #include <linux/types.h> |
10 | #include <linux/usb/midi.h> |
11 | |
12 | /* A.1 MS Class-Specific Interface Descriptor Types */ |
13 | #define USB_DT_CS_GR_TRM_BLOCK 0x26 |
14 | |
15 | /* A.1 MS Class-Specific Interface Descriptor Subtypes */ |
16 | /* same as MIDI 1.0 */ |
17 | |
18 | /* A.2 MS Class-Specific Endpoint Descriptor Subtypes */ |
19 | #define USB_MS_GENERAL_2_0 0x02 |
20 | |
21 | /* A.3 MS Class-Specific Group Terminal Block Descriptor Subtypes */ |
22 | #define USB_MS_GR_TRM_BLOCK_UNDEFINED 0x00 |
23 | #define 0x01 |
24 | #define USB_MS_GR_TRM_BLOCK 0x02 |
25 | |
26 | /* A.4 MS Interface Header MIDIStreaming Class Revision */ |
27 | #define USB_MS_REV_MIDI_1_0 0x0100 |
28 | #define USB_MS_REV_MIDI_2_0 0x0200 |
29 | |
30 | /* A.5 MS MIDI IN and OUT Jack Types */ |
31 | /* same as MIDI 1.0 */ |
32 | |
33 | /* A.6 Group Terminal Block Types */ |
34 | #define USB_MS_GR_TRM_BLOCK_TYPE_BIDIRECTIONAL 0x00 |
35 | #define USB_MS_GR_TRM_BLOCK_TYPE_INPUT_ONLY 0x01 |
36 | #define USB_MS_GR_TRM_BLOCK_TYPE_OUTPUT_ONLY 0x02 |
37 | |
38 | /* A.7 Group Terminal Default MIDI Protocol */ |
39 | #define USB_MS_MIDI_PROTO_UNKNOWN 0x00 /* Unknown (Use MIDI-CI) */ |
40 | #define USB_MS_MIDI_PROTO_1_0_64 0x01 /* MIDI 1.0, UMP up to 64bits */ |
41 | #define USB_MS_MIDI_PROTO_1_0_64_JRTS 0x02 /* MIDI 1.0, UMP up to 64bits, Jitter Reduction Timestamps */ |
42 | #define USB_MS_MIDI_PROTO_1_0_128 0x03 /* MIDI 1.0, UMP up to 128bits */ |
43 | #define USB_MS_MIDI_PROTO_1_0_128_JRTS 0x04 /* MIDI 1.0, UMP up to 128bits, Jitter Reduction Timestamps */ |
44 | #define USB_MS_MIDI_PROTO_2_0 0x11 /* MIDI 2.0 */ |
45 | #define USB_MS_MIDI_PROTO_2_0_JRTS 0x12 /* MIDI 2.0, Jitter Reduction Timestamps */ |
46 | |
47 | /* 5.2.2.1 Class-Specific MS Interface Header Descriptor */ |
48 | /* Same as MIDI 1.0, use struct usb_ms_header_descriptor */ |
49 | |
50 | /* 5.3.2 Class-Specific MIDI Streaming Data Endpoint Descriptor */ |
51 | struct usb_ms20_endpoint_descriptor { |
52 | __u8 bLength; /* 4+n */ |
53 | __u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */ |
54 | __u8 bDescriptorSubtype; /* USB_MS_GENERAL_2_0 */ |
55 | __u8 bNumGrpTrmBlock; /* Number of Group Terminal Blocks: n */ |
56 | __u8 baAssoGrpTrmBlkID[]; /* ID of the Group Terminal Blocks [n] */ |
57 | } __packed; |
58 | |
59 | #define USB_DT_MS20_ENDPOINT_SIZE(n) (4 + (n)) |
60 | |
61 | /* As above, but more useful for defining your own descriptors: */ |
62 | #define DECLARE_USB_MS20_ENDPOINT_DESCRIPTOR(n) \ |
63 | struct usb_ms20_endpoint_descriptor_##n { \ |
64 | __u8 bLength; \ |
65 | __u8 bDescriptorType; \ |
66 | __u8 bDescriptorSubtype; \ |
67 | __u8 bNumGrpTrmBlock; \ |
68 | __u8 baAssoGrpTrmBlkID[n]; \ |
69 | } __packed |
70 | |
71 | /* 5.4.1 Class-Specific Group Terminal Block Header Descriptor */ |
72 | struct { |
73 | __u8 ; /* 5 */ |
74 | __u8 ; /* USB_DT_CS_GR_TRM_BLOCK */ |
75 | __u8 ; /* USB_MS_GR_TRM_BLOCK_HEADER */ |
76 | __le16 ; /* Total number of bytes */ |
77 | } __packed; |
78 | |
79 | /* 5.4.2.1 Group Terminal Block Descriptor */ |
80 | struct usb_ms20_gr_trm_block_descriptor { |
81 | __u8 bLength; /* 13 */ |
82 | __u8 bDescriptorType; /* USB_DT_CS_GR_TRM_BLOCK */ |
83 | __u8 bDescriptorSubtype; /* USB_MS_GR_TRM_BLOCK */ |
84 | __u8 bGrpTrmBlkID; /* ID of this Group Terminal Block */ |
85 | __u8 bGrpTrmBlkType; /* Group Terminal Block Type */ |
86 | __u8 nGroupTrm; /* The first member Group Terminal in this block */ |
87 | __u8 nNumGroupTrm; /* Number of member Group Terminals spanned */ |
88 | __u8 iBlockItem; /* String ID of Block item */ |
89 | __u8 bMIDIProtocol; /* Default MIDI protocol */ |
90 | __le16 wMaxInputBandwidth; /* Max input bandwidth capability in 4kB/s */ |
91 | __le16 wMaxOutputBandwidth; /* Max output bandwidth capability in 4kB/s */ |
92 | } __packed; |
93 | |
94 | #endif /* __LINUX_USB_MIDI_V2_H */ |
95 | |