| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * <linux/usb/midi-v2.h> -- USB MIDI 2.0 definitions. |
| */ |
| |
| #ifndef __LINUX_USB_MIDI_V2_H |
| #define __LINUX_USB_MIDI_V2_H |
| |
| #include <linux/types.h> |
| #include <linux/usb/midi.h> |
| |
| /* A.1 MS Class-Specific Interface Descriptor Types */ |
| #define USB_DT_CS_GR_TRM_BLOCK 0x26 |
| |
| /* A.1 MS Class-Specific Interface Descriptor Subtypes */ |
| /* same as MIDI 1.0 */ |
| |
| /* A.2 MS Class-Specific Endpoint Descriptor Subtypes */ |
| #define USB_MS_GENERAL_2_0 0x02 |
| |
| /* A.3 MS Class-Specific Group Terminal Block Descriptor Subtypes */ |
| #define USB_MS_GR_TRM_BLOCK_UNDEFINED 0x00 |
| #define USB_MS_GR_TRM_BLOCK_HEADER 0x01 |
| #define USB_MS_GR_TRM_BLOCK 0x02 |
| |
| /* A.4 MS Interface Header MIDIStreaming Class Revision */ |
| #define USB_MS_REV_MIDI_1_0 0x0100 |
| #define USB_MS_REV_MIDI_2_0 0x0200 |
| |
| /* A.5 MS MIDI IN and OUT Jack Types */ |
| /* same as MIDI 1.0 */ |
| |
| /* A.6 Group Terminal Block Types */ |
| #define USB_MS_GR_TRM_BLOCK_TYPE_BIDIRECTIONAL 0x00 |
| #define USB_MS_GR_TRM_BLOCK_TYPE_INPUT_ONLY 0x01 |
| #define USB_MS_GR_TRM_BLOCK_TYPE_OUTPUT_ONLY 0x02 |
| |
| /* A.7 Group Terminal Default MIDI Protocol */ |
| #define USB_MS_MIDI_PROTO_UNKNOWN 0x00 /* Unknown (Use MIDI-CI) */ |
| #define USB_MS_MIDI_PROTO_1_0_64 0x01 /* MIDI 1.0, UMP up to 64bits */ |
| #define USB_MS_MIDI_PROTO_1_0_64_JRTS 0x02 /* MIDI 1.0, UMP up to 64bits, Jitter Reduction Timestamps */ |
| #define USB_MS_MIDI_PROTO_1_0_128 0x03 /* MIDI 1.0, UMP up to 128bits */ |
| #define USB_MS_MIDI_PROTO_1_0_128_JRTS 0x04 /* MIDI 1.0, UMP up to 128bits, Jitter Reduction Timestamps */ |
| #define USB_MS_MIDI_PROTO_2_0 0x11 /* MIDI 2.0 */ |
| #define USB_MS_MIDI_PROTO_2_0_JRTS 0x12 /* MIDI 2.0, Jitter Reduction Timestamps */ |
| |
| /* 5.2.2.1 Class-Specific MS Interface Header Descriptor */ |
| /* Same as MIDI 1.0, use struct usb_ms_header_descriptor */ |
| |
| /* 5.3.2 Class-Specific MIDI Streaming Data Endpoint Descriptor */ |
| struct usb_ms20_endpoint_descriptor { |
| __u8 bLength; /* 4+n */ |
| __u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */ |
| __u8 bDescriptorSubtype; /* USB_MS_GENERAL_2_0 */ |
| __u8 bNumGrpTrmBlock; /* Number of Group Terminal Blocks: n */ |
| __u8 baAssoGrpTrmBlkID[]; /* ID of the Group Terminal Blocks [n] */ |
| } __packed; |
| |
| #define USB_DT_MS20_ENDPOINT_SIZE(n) (4 + (n)) |
| |
| /* As above, but more useful for defining your own descriptors: */ |
| #define DECLARE_USB_MS20_ENDPOINT_DESCRIPTOR(n) \ |
| struct usb_ms20_endpoint_descriptor_##n { \ |
| __u8 bLength; \ |
| __u8 bDescriptorType; \ |
| __u8 bDescriptorSubtype; \ |
| __u8 bNumGrpTrmBlock; \ |
| __u8 baAssoGrpTrmBlkID[n]; \ |
| } __packed |
| |
| /* 5.4.1 Class-Specific Group Terminal Block Header Descriptor */ |
| struct usb_ms20_gr_trm_block_header_descriptor { |
| __u8 bLength; /* 5 */ |
| __u8 bDescriptorType; /* USB_DT_CS_GR_TRM_BLOCK */ |
| __u8 bDescriptorSubtype; /* USB_MS_GR_TRM_BLOCK_HEADER */ |
| __le16 wTotalLength; /* Total number of bytes */ |
| } __packed; |
| |
| /* 5.4.2.1 Group Terminal Block Descriptor */ |
| struct usb_ms20_gr_trm_block_descriptor { |
| __u8 bLength; /* 13 */ |
| __u8 bDescriptorType; /* USB_DT_CS_GR_TRM_BLOCK */ |
| __u8 bDescriptorSubtype; /* USB_MS_GR_TRM_BLOCK */ |
| __u8 bGrpTrmBlkID; /* ID of this Group Terminal Block */ |
| __u8 bGrpTrmBlkType; /* Group Terminal Block Type */ |
| __u8 nGroupTrm; /* The first member Group Terminal in this block */ |
| __u8 nNumGroupTrm; /* Number of member Group Terminals spanned */ |
| __u8 iBlockItem; /* String ID of Block item */ |
| __u8 bMIDIProtocol; /* Default MIDI protocol */ |
| __le16 wMaxInputBandwidth; /* Max input bandwidth capability in 4kB/s */ |
| __le16 wMaxOutputBandwidth; /* Max output bandwidth capability in 4kB/s */ |
| } __packed; |
| |
| #endif /* __LINUX_USB_MIDI_V2_H */ |
