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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Utility definitions for MIDI 2.0 function
4 */
5
6#ifndef U_MIDI2_H
7#define U_MIDI2_H
8
9#include <linux/usb/composite.h>
10#include <sound/asound.h>
11
12struct f_midi2_opts;
13struct f_midi2_ep_opts;
14struct f_midi2_block_opts;
15
16/* UMP Function Block info */
17struct f_midi2_block_info {
18 unsigned int direction; /* FB direction: 1-3 */
19 unsigned int first_group; /* first UMP group: 0-15 */
20 unsigned int num_groups; /* number of UMP groups: 1-16 */
21 unsigned int midi1_first_group; /* first UMP group for MIDI 1.0 */
22 unsigned int midi1_num_groups; /* number of UMP groups for MIDI 1.0 */
23 unsigned int ui_hint; /* UI-hint: 0-3 */
24 unsigned int midi_ci_version; /* MIDI-CI version: 0-255 */
25 unsigned int sysex8_streams; /* number of sysex8 streams: 0-255 */
26 unsigned int is_midi1; /* MIDI 1.0 port: 0-2 */
27 bool active; /* FB active flag: bool */
28 const char *name; /* FB name */
29};
30
31/* UMP Endpoint info */
32struct f_midi2_ep_info {
33 unsigned int protocol_caps; /* protocol capabilities: 1-3 */
34 unsigned int protocol; /* default protocol: 1-2 */
35 unsigned int manufacturer; /* manufacturer id: 0-0xffffff */
36 unsigned int family; /* device family id: 0-0xffff */
37 unsigned int model; /* device model id: 0x-0xffff */
38 unsigned int sw_revision; /* software revision: 32bit */
39
40 const char *ep_name; /* Endpoint name */
41 const char *product_id; /* Product ID */
42};
43
44struct f_midi2_card_info {
45 bool process_ump; /* process UMP stream: bool */
46 bool static_block; /* static FBs: bool */
47 unsigned int req_buf_size; /* request buffer size */
48 unsigned int num_reqs; /* number of requests */
49 const char *iface_name; /* interface name */
50};
51
52struct f_midi2_block_opts {
53 struct config_group group;
54 unsigned int id;
55 struct f_midi2_block_info info;
56 struct f_midi2_ep_opts *ep;
57};
58
59struct f_midi2_ep_opts {
60 struct config_group group;
61 unsigned int index;
62 struct f_midi2_ep_info info;
63 struct f_midi2_block_opts *blks[SNDRV_UMP_MAX_BLOCKS];
64 struct f_midi2_opts *opts;
65};
66
67#define MAX_UMP_EPS 4
68#define MAX_CABLES 16
69
70struct f_midi2_opts {
71 struct usb_function_instance func_inst;
72 struct mutex lock;
73 int refcnt;
74
75 struct f_midi2_card_info info;
76
77 unsigned int num_eps;
78 struct f_midi2_ep_opts *eps[MAX_UMP_EPS];
79};
80
81#endif /* U_MIDI2_H */