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[4];
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(ctx, 0, sizeof(*ctx));
44
45}
46
47#endif /* __SOUND_UMP_CONVERT_H */