1// SPDX-License-Identifier: GPL-2.0-or-later
2#ifndef __SOUND_UMP_CONVERT_H
3#define __SOUND_UMP_CONVERT_H
4
5#include <sound/ump_msg.h>
6
7/* context for converting from legacy control messages to UMP packet */
8struct ump_cvt_to_ump_bank {
9 bool rpn_set;
10 bool nrpn_set;
11 bool bank_set;
12 unsigned char cc_rpn_msb, cc_rpn_lsb;
13 unsigned char cc_nrpn_msb, cc_nrpn_lsb;
14 unsigned char cc_data_msb, cc_data_lsb;
15 unsigned char cc_bank_msb, cc_bank_lsb;
16 bool cc_data_msb_set, cc_data_lsb_set;
17};
18
19/* context for converting from MIDI1 byte stream to UMP packet */
20struct ump_cvt_to_ump {
21 /* MIDI1 intermediate buffer */
22 unsigned char buf[6]; /* up to 6 bytes for SysEx */
23 int len;
24 int cmd_bytes;
25
26 /* UMP output packet */
27 u32 ump[4];
28 int ump_bytes;
29
30 /* various status */
31 unsigned int in_sysex;
32 struct ump_cvt_to_ump_bank bank[16]; /* per channel */
33};
34
35int snd_ump_convert_from_ump(const u32 *data, unsigned char *dst,
36 unsigned char *group_ret);
37void snd_ump_convert_to_ump(struct ump_cvt_to_ump *cvt, unsigned char group,
38 unsigned int protocol, unsigned char c);
39
40/* reset the converter context, called at each open to ump */
41static inline void snd_ump_convert_reset(struct ump_cvt_to_ump *ctx)
42{
43 memset(s: ctx, c: 0, n: sizeof(*ctx));
44
45}
46
47#endif /* __SOUND_UMP_CONVERT_H */
48