ump: Add helpers to parse / set UMP packet data
This patch defines the structs / unions that can be used for encoding and decoding UMP packets, as well as inline helper functions. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
81b0cf46d1
commit
040356ecf0
4 changed files with 575 additions and 1 deletions
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@ -34,7 +34,7 @@ endif
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endif
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if BUILD_RAWMIDI
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alsainclude_HEADERS += rawmidi.h ump.h
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alsainclude_HEADERS += rawmidi.h ump.h ump_msg.h
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endif
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if BUILD_HWDEP
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@ -69,9 +69,11 @@
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define SND_LITTLE_ENDIAN
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#define SNDRV_LITTLE_ENDIAN
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#define SNDRV_LITTLE_ENDIAN_BITFIELD
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#elif __BYTE_ORDER == __BIG_ENDIAN
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#define SND_BIG_ENDIAN
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#define SNDRV_BIG_ENDIAN
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#define SNDRV_BIG_ENDIAN_BITFIELD
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#else
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#error "Unsupported endian..."
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#endif
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571
include/ump_msg.h
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571
include/ump_msg.h
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@ -0,0 +1,571 @@
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/* SPDX-License-Identifier: LGPL-2.1+ */
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/**
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* \file include/ump_msg.h
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* \brief API library for ALSA rawmidi/UMP interface
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*
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* API library for ALSA rawmidi/UMP interface
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*/
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#ifndef __ALSA_UMP_MSG_H
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#define __ALSA_UMP_MSG_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** general UMP packet header in 32bit word */
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typedef struct _snd_ump_msg_hdr {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t byte1; /**< First data byte */
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uint8_t byte2; /**< Second data byte */
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#else
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uint8_t byte2; /**< Second data byte */
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uint8_t byte1; /**< First data byte */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_hdr_t;
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/** MIDI 1.0 Note Off / Note On (32bit) */
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typedef struct _snd_ump_msg_midi1_note {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t note; /**< Note (7bit) */
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uint8_t velocity; /**< Velocity (7bit) */
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#else
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uint8_t velocity; /**< Velocity (7bit) */
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uint8_t note; /**< Note (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_midi1_note_t;
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/** MIDI 1.0 Poly Pressure (32bit) */
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typedef struct _snd_ump_msg_midi1_paf {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t note; /** Note (7bit) */
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uint8_t data; /** Pressure (7bit) */
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#else
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uint8_t data; /** Pressure (7bit) */
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uint8_t note; /** Note (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_midi1_paf_t;
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/** MIDI 1.0 Control Change (32bit) */
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typedef struct _snd_ump_msg_midi1_cc {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t index; /** Control index (7bit) */
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uint8_t data; /** Control data (7bit) */
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#else
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uint8_t data; /** Control data (7bit) */
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uint8_t index; /** Control index (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_midi1_cc_t;
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/** MIDI 1.0 Program Change (32bit) */
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typedef struct _snd_ump_msg_midi1_program {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t program; /**< Program number (7bit) */
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uint8_t reserved; /**< Unused */
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#else
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uint8_t reserved; /**< Unused */
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uint8_t program; /**< Program number (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_midi1_program_t;
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/** MIDI 1.0 Channel Pressure (32bit) */
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typedef struct _snd_ump_msg_midi1_caf {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t data; /**< Pressure (7bit) */
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uint8_t reserved; /**< Unused */
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#else
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uint8_t reserved; /**< Unused */
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uint8_t data; /**< Pressure (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_midi1_caf_t;
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/** MIDI 1.0 Pitch Bend (32bit) */
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typedef struct _snd_ump_msg_midi1_pitchbend {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t data_lsb; /**< LSB of pitchbend (7bit) */
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uint8_t data_msb; /**< MSB of pitchbend (7bit) */
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#else
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uint8_t data_msb; /**< MSB of pitchbend (7bit) */
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uint8_t data_lsb; /**< LSB of pitchbend (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_midi1_pitchbend_t;
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/** System Common and Real Time messages (32bit); no channel field */
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typedef struct snd_ump_msg_system {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status; /**< Status */
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uint8_t parm1; /**< First parameter */
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uint8_t parm2; /**< Second parameter */
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#else
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uint8_t parm1; /**< First parameter */
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uint8_t parm2; /**< Second parameter */
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uint8_t status; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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#endif
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} __attribute((packed)) snd_ump_msg_system_t;
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/** MIDI 1.0 UMP CVM (32bit) */
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typedef union _snd_ump_msg_midi1 {
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snd_ump_msg_midi1_note_t note_on;
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snd_ump_msg_midi1_note_t note_off;
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snd_ump_msg_midi1_paf_t poly_pressure;
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snd_ump_msg_midi1_cc_t control_change;
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snd_ump_msg_midi1_program_t program_change;
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snd_ump_msg_midi1_caf_t channel_pressure;
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snd_ump_msg_midi1_pitchbend_t pitchbend;
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snd_ump_msg_system_t system;
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snd_ump_msg_hdr_t hdr;
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uint32_t raw;
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} snd_ump_msg_midi1_t;
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/** MIDI 2.0 Note-on/off attribute type */
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enum {
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SND_UMP_MIDI2_NOTE_ATTR_NO_DATA = 0x00, /**< No attribute data */
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SND_UMP_MIDI2_NOTE_ATTR_MANUFACTURER = 0x01, /**< Manufacturer specific */
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SND_UMP_MIDI2_NOTE_ATTR_PROFILE = 0x02, /**< Profile specific */
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SND_UMP_MIDI2_NOTE_ATTR_PITCH79 = 0x03, /**< Pitch 7.9 */
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};
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/* MIDI 2.0 Note Off / Note On (64bit) */
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typedef struct _snd_ump_msg_midi2_note {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t note; /**< Note (7bit) */
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uint8_t attr_type; /**< Attribute type */
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uint16_t velocity; /**< Velocity (16bit) */
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uint16_t attr_data; /**< Attribute data (16bit) */
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#else
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uint8_t attr_type; /**< Attribute type */
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uint8_t note; /**< Note (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint16_t attr_data; /**< Attribute data (16bit) */
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uint16_t velocity; /**< Velocity (16bit) */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_note_t;
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/** MIDI 2.0 Poly Pressure (64bit) */
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typedef struct _snd_ump_msg_midi2_paf {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t note; /**< Note (7bit) */
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uint8_t reserved; /**< Unused */
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uint32_t data; /**< Pressure (32bit) */
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#else
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uint8_t reserved; /**< Unused */
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uint8_t note; /**< Note (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint32_t data; /**< Pressure (32bit) */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_paf_t;
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/** MIDI 2.0 Per-Note Controller (64bit) */
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typedef struct _snd_ump_msg_midi2_per_note_cc {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t note; /**< Note (7bit) */
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uint8_t index; /**< Control index (8bit) */
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uint32_t data; /**< Data (32bit) */
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#else
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uint8_t index; /**< Control index (8bit) */
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uint8_t note; /**< Note (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint32_t data; /**< Data (32bit) */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_per_note_cc_t;
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/** MIDI 2.0 per-note management flag bits */
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enum {
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SND_UMP_MIDI2_PNMGMT_RESET_CONTROLLERS = 0x01, /**< Reset (set) per-note controllers */
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SND_UMP_MIDI2_PNMGMT_DETACH_CONTROLLERS = 0x02, /**< Detach per-note controllers */
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};
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/** MIDI 2.0 Per-Note Management (64bit) */
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typedef struct _snd_ump_msg_midi2_per_note_mgmt {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t note; /**< Note (7bit) */
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uint8_t flags; /**< Option flags (8bit) */
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uint32_t reserved; /**< Unused */
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#else
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uint8_t flags; /**< Option flags (8bit) */
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uint8_t note; /**< Note (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint32_t reserved; /**< Unused */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_per_note_mgmt_t;
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/** MIDI 2.0 Control Change (64bit) */
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typedef struct _snd_ump_msg_midi2_cc {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t index; /**< Control index (7bit) */
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uint8_t reserved; /**< Unused */
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uint32_t data; /**< Control data (32bit) */
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#else
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uint8_t reserved; /**< Unused */
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uint8_t index; /**< Control index (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint32_t data; /**< Control data (32bit) */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_cc_t;
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/** MIDI 2.0 Registered Controller (RPN) / Assignable Controller (NRPN) (64bit) */
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typedef struct _snd_ump_msg_midi2_rpn {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint8_t bank; /**< Bank number (7bit) */
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uint8_t index; /**< Control index (7bit) */
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uint32_t data; /**< Data (32bit) */
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#else
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uint8_t index; /**< Control index (7bit) */
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uint8_t bank; /**< Bank number (7bit) */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint32_t data; /**< Data (32bit) */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_rpn_t;
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/** MIDI 2.0 Program Change (64bit) */
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typedef struct _snd_ump_msg_midi2_program {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint16_t reserved:15; /**< Unused */
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uint16_t bank_valid:1; /**< Option flag: bank valid */
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uint8_t program; /**< Program number (7bit) */
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uint8_t reserved2; /**< Unused */
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uint8_t bank_msb; /**< MSB of bank (8bit) */
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uint8_t bank_lsb; /**< LSB of bank (7bit) */
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#else
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uint16_t bank_valid:1; /**< Option flag: bank valid */
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uint16_t reserved:15; /**< Unused */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint8_t bank_lsb; /**< LSB of bank (7bit) */
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uint8_t bank_msb; /**< MSB of bank (8bit) */
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uint8_t reserved2; /**< Unused */
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uint8_t program; /**< Program number (7bit) */
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#endif
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} __attribute((packed)) snd_ump_msg_midi2_program_t;
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/** MIDI 2.0 Channel Pressure (64bit) */
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typedef struct _snd_ump_msg_midi2_caf {
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#ifdef SNDRV_BIG_ENDIAN_BITFIELD
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uint8_t type:4; /**< UMP packet type */
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uint8_t group:4; /**< UMP Group */
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uint8_t status:4; /**< Status */
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uint8_t channel:4; /**< Channel */
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uint16_t reserved; /**< Unused */
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uint32_t data; /** Data (32bit) */
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#else
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uint16_t reserved; /**< Unused */
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uint8_t channel:4; /**< Channel */
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uint8_t status:4; /**< Status */
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uint8_t group:4; /**< UMP Group */
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uint8_t type:4; /**< UMP packet type */
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uint32_t data; /** Data (32bit) */
|
||||
#endif
|
||||
} __attribute((packed)) snd_ump_msg_midi2_caf_t;
|
||||
|
||||
/* MIDI 2.0 Pitch Bend (64bit) */
|
||||
typedef struct _snd_ump_msg_midi2_pitchbend {
|
||||
#ifdef SNDRV_BIG_ENDIAN_BITFIELD
|
||||
uint8_t type:4; /**< UMP packet type */
|
||||
uint8_t group:4; /**< UMP Group */
|
||||
uint8_t status:4; /**< Status */
|
||||
uint8_t channel:4; /**< Channel */
|
||||
uint16_t reserved; /**< Unused */
|
||||
|
||||
uint32_t data; /** Data (32bit) */
|
||||
#else
|
||||
uint16_t reserved; /**< Unused */
|
||||
uint8_t channel:4; /**< Channel */
|
||||
uint8_t status:4; /**< Status */
|
||||
uint8_t group:4; /**< UMP Group */
|
||||
uint8_t type:4; /**< UMP packet type */
|
||||
|
||||
uint32_t data; /** Data (32bit) */
|
||||
#endif
|
||||
} __attribute((packed)) snd_ump_msg_midi2_pitchbend_t;
|
||||
|
||||
/* MIDI 2.0 Per-Note Pitch Bend (64bit) */
|
||||
typedef struct _snd_ump_msg_midi2_per_note_pitchbend {
|
||||
#ifdef __BIG_ENDIAN_BITFIELD
|
||||
uint8_t type:4; /**< UMP packet type */
|
||||
uint8_t group:4; /**< UMP Group */
|
||||
uint8_t status:4; /**< Status */
|
||||
uint8_t channel:4; /**< Channel */
|
||||
uint8_t note; /**< Note (7bit) */
|
||||
uint8_t reserved; /**< Unused */
|
||||
|
||||
uint32_t data; /**< Data (32bit) */
|
||||
#else
|
||||
/* 0 */
|
||||
uint8_t reserved; /**< Unused */
|
||||
uint8_t note; /**< Note (7bit) */
|
||||
uint8_t channel:4; /**< Channel */
|
||||
uint8_t status:4; /**< Status */
|
||||
uint8_t group:4; /**< UMP Group */
|
||||
uint8_t type:4; /**< UMP packet type */
|
||||
|
||||
uint32_t data; /**< Data (32bit) */
|
||||
#endif
|
||||
} __attribute((packed)) snd_ump_msg_midi2_per_note_pitchbend_t;
|
||||
|
||||
/** MIDI2 UMP packet (64bit little-endian) */
|
||||
typedef union _snd_ump_msg_midi2 {
|
||||
snd_ump_msg_midi2_note_t note_on;
|
||||
snd_ump_msg_midi2_note_t note_off;
|
||||
snd_ump_msg_midi2_paf_t poly_pressure;
|
||||
snd_ump_msg_midi2_per_note_cc_t per_note_acc;
|
||||
snd_ump_msg_midi2_per_note_cc_t per_note_rcc;
|
||||
snd_ump_msg_midi2_per_note_mgmt_t per_note_mgmt;
|
||||
snd_ump_msg_midi2_cc_t control_change;
|
||||
snd_ump_msg_midi2_rpn_t rpn;
|
||||
snd_ump_msg_midi2_rpn_t nrpn;
|
||||
snd_ump_msg_midi2_rpn_t relative_rpn;
|
||||
snd_ump_msg_midi2_rpn_t relative_nrpn;
|
||||
snd_ump_msg_midi2_program_t program_change;
|
||||
snd_ump_msg_midi2_caf_t channel_pressure;
|
||||
snd_ump_msg_midi2_pitchbend_t pitchbend;
|
||||
snd_ump_msg_midi2_per_note_pitchbend_t per_note_pitchbend;
|
||||
snd_ump_msg_hdr_t hdr;
|
||||
uint32_t raw[2];
|
||||
} snd_ump_msg_midi2_t;
|
||||
|
||||
/**
|
||||
* UMP message type
|
||||
*/
|
||||
enum {
|
||||
SND_UMP_MSG_TYPE_SYSTEM = 0x01, /* System messages */
|
||||
SND_UMP_MSG_TYPE_MIDI1_CHANNEL_VOICE = 0x02, /* MIDI 1.0 messages */
|
||||
SND_UMP_MSG_TYPE_DATA = 0x03, /* 7bit SysEx messages */
|
||||
SND_UMP_MSG_TYPE_MIDI2_CHANNEL_VOICE = 0x04, /* MIDI 2.0 messages */
|
||||
SND_UMP_MSG_TYPE_EXTENDED_DATA = 0x05, /* 8bit data message */
|
||||
};
|
||||
|
||||
/**
|
||||
* UMP MIDI 1.0 / 2.0 message status code (4bit)
|
||||
*/
|
||||
enum {
|
||||
SND_UMP_MSG_PER_NOTE_RCC = 0x0,
|
||||
SND_UMP_MSG_PER_NOTE_ACC = 0x1,
|
||||
SND_UMP_MSG_RPN = 0x2,
|
||||
SND_UMP_MSG_NRPN = 0x3,
|
||||
SND_UMP_MSG_RELATIVE_RPN = 0x4,
|
||||
SND_UMP_MSG_RELATIVE_NRPN = 0x5,
|
||||
SND_UMP_MSG_PER_NOTE_PITCHBEND = 0x6,
|
||||
SND_UMP_MSG_NOTE_OFF = 0x8,
|
||||
SND_UMP_MSG_NOTE_ON = 0x9,
|
||||
SND_UMP_MSG_POLY_PRESSURE = 0xa,
|
||||
SND_UMP_MSG_CONTROL_CHANGE = 0xb,
|
||||
SND_UMP_MSG_PROGRAM_CHANGE = 0xc,
|
||||
SND_UMP_MSG_CHANNEL_PRESSURE = 0xd,
|
||||
SND_UMP_MSG_PITCHBEND = 0xe,
|
||||
SND_UMP_MSG_PER_NOTE_MGMT = 0xf,
|
||||
};
|
||||
|
||||
/**
|
||||
* MIDI System / Realtime message status code (8bit)
|
||||
*/
|
||||
enum {
|
||||
SND_UMP_MSG_REALTIME = 0xf0, /* mask */
|
||||
SND_UMP_MSG_SYSEX_START = 0xf0,
|
||||
SND_UMP_MSG_MIDI_TIME_CODE = 0xf1,
|
||||
SND_UMP_MSG_SONG_POSITION = 0xf2,
|
||||
SND_UMP_MSG_SONG_SELECT = 0xf3,
|
||||
SND_UMP_MSG_TUNE_REQUEST = 0xf6,
|
||||
SND_UMP_MSG_SYSEX_END = 0xf7,
|
||||
SND_UMP_MSG_TIMING_CLOCK = 0xf8,
|
||||
SND_UMP_MSG_START = 0xfa,
|
||||
SND_UMP_MSG_CONTINUE = 0xfb,
|
||||
SND_UMP_MSG_STOP = 0xfc,
|
||||
SND_UMP_MSG_ACTIVE_SENSING = 0xfe,
|
||||
SND_UMP_MSG_RESET = 0xff,
|
||||
};
|
||||
|
||||
/**
|
||||
* \brief get UMP status (4bit) from 32bit UMP message header
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_hdr_status(uint32_t ump)
|
||||
{
|
||||
return (ump >> 20) & 0x0f;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP channel (4bit) from 32bit UMP message header
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_hdr_channel(uint32_t ump)
|
||||
{
|
||||
return (ump >> 16) & 0x0f;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP message type (4bit) from 32bit UMP message header
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_hdr_type(uint32_t ump)
|
||||
{
|
||||
return (ump >> 28);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP group (4bit) from 32bit UMP message header
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_hdr_group(uint32_t ump)
|
||||
{
|
||||
return (ump >> 24) & 0x0f;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP status from UMP packet pointer
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_status(const uint32_t *ump)
|
||||
{
|
||||
return snd_ump_msg_hdr_status(*ump);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP channel from UMP packet pointer
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_channel(const uint32_t *ump)
|
||||
{
|
||||
return snd_ump_msg_hdr_channel(*ump);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP message type from UMP packet pointer
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_type(const uint32_t *ump)
|
||||
{
|
||||
return snd_ump_msg_hdr_type(*ump);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief get UMP group from UMP packet pointer
|
||||
*/
|
||||
static inline uint8_t snd_ump_msg_group(const uint32_t *ump)
|
||||
{
|
||||
return snd_ump_msg_hdr_group(*ump);
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ALSA_UMP_MSG_H */
|
||||
|
|
@ -1,6 +1,7 @@
|
|||
/* SPDX-License-Identifier: LGPL-2.1+ */
|
||||
#include "rawmidi.h"
|
||||
#include "ump.h"
|
||||
#include "ump_msg.h"
|
||||
|
||||
struct _snd_ump {
|
||||
snd_rawmidi_t *rawmidi;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue