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-rw-r--r--include/sound/ump_convert.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/sound/ump_convert.h b/include/sound/ump_convert.h
new file mode 100644
index 000000000000..28c364c63245
--- /dev/null
+++ b/include/sound/ump_convert.h
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef __SOUND_UMP_CONVERT_H
+#define __SOUND_UMP_CONVERT_H
+
+#include <sound/ump_msg.h>
+
+/* context for converting from legacy control messages to UMP packet */
+struct ump_cvt_to_ump_bank {
+ bool rpn_set;
+ bool nrpn_set;
+ bool bank_set;
+ unsigned char cc_rpn_msb, cc_rpn_lsb;
+ unsigned char cc_nrpn_msb, cc_nrpn_lsb;
+ unsigned char cc_data_msb, cc_data_lsb;
+ unsigned char cc_bank_msb, cc_bank_lsb;
+};
+
+/* context for converting from MIDI1 byte stream to UMP packet */
+struct ump_cvt_to_ump {
+ /* MIDI1 intermediate buffer */
+ unsigned char buf[4];
+ int len;
+ int cmd_bytes;
+
+ /* UMP output packet */
+ u32 ump[4];
+ int ump_bytes;
+
+ /* various status */
+ unsigned int in_sysex;
+ struct ump_cvt_to_ump_bank bank[16]; /* per channel */
+};
+
+int snd_ump_convert_from_ump(const u32 *data, unsigned char *dst,
+ unsigned char *group_ret);
+void snd_ump_convert_to_ump(struct ump_cvt_to_ump *cvt, unsigned char group,
+ unsigned int protocol, unsigned char c);
+
+/* reset the converter context, called at each open to ump */
+static inline void snd_ump_convert_reset(struct ump_cvt_to_ump *ctx)
+{
+ memset(ctx, 0, sizeof(*ctx));
+
+}
+
+#endif /* __SOUND_UMP_CONVERT_H */