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linux/include/sound/ump_msg.h

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ALSA: ump: Add legacy raw MIDI support This patch extends the UMP core code to support the legacy MIDI 1.0 rawmidi devices. When the new kconfig CONFIG_SND_UMP_LEGACY_RAWMIDI is set, the UMP core allows to attach an additional rawmidi device for each UMP Endpoint. The rawmidi device contains 16 substreams where each substream corresponds to a UMP Group belonging to the EP. The device reads/writes the legacy MIDI 1.0 byte streams and translates from/to UMP packets. The legacy rawmidi devices are exclusive with the UMP rawmidi devices, hence both of them can't be opened at the same time unless the UMP rawmidi is opened in APPEND mode. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20230523075358.9672-15-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 09:53:35 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Universal MIDI Packet (UMP): Message Definitions
*/
#ifndef __SOUND_UMP_MSG_H
#define __SOUND_UMP_MSG_H
/* MIDI 1.0 / 2.0 Status Code (4bit) */
enum {
UMP_MSG_STATUS_PER_NOTE_RCC = 0x0,
UMP_MSG_STATUS_PER_NOTE_ACC = 0x1,
UMP_MSG_STATUS_RPN = 0x2,
UMP_MSG_STATUS_NRPN = 0x3,
UMP_MSG_STATUS_RELATIVE_RPN = 0x4,
UMP_MSG_STATUS_RELATIVE_NRPN = 0x5,
UMP_MSG_STATUS_PER_NOTE_PITCH_BEND = 0x6,
UMP_MSG_STATUS_NOTE_OFF = 0x8,
UMP_MSG_STATUS_NOTE_ON = 0x9,
UMP_MSG_STATUS_POLY_PRESSURE = 0xa,
UMP_MSG_STATUS_CC = 0xb,
UMP_MSG_STATUS_PROGRAM = 0xc,
UMP_MSG_STATUS_CHANNEL_PRESSURE = 0xd,
UMP_MSG_STATUS_PITCH_BEND = 0xe,
UMP_MSG_STATUS_PER_NOTE_MGMT = 0xf,
};
/* MIDI 1.0 Channel Control (7bit) */
enum {
UMP_CC_BANK_SELECT = 0,
UMP_CC_MODULATION = 1,
UMP_CC_BREATH = 2,
UMP_CC_FOOT = 4,
UMP_CC_PORTAMENTO_TIME = 5,
UMP_CC_DATA = 6,
UMP_CC_VOLUME = 7,
UMP_CC_BALANCE = 8,
UMP_CC_PAN = 10,
UMP_CC_EXPRESSION = 11,
UMP_CC_EFFECT_CONTROL_1 = 12,
UMP_CC_EFFECT_CONTROL_2 = 13,
UMP_CC_GP_1 = 16,
UMP_CC_GP_2 = 17,
UMP_CC_GP_3 = 18,
UMP_CC_GP_4 = 19,
UMP_CC_BANK_SELECT_LSB = 32,
UMP_CC_MODULATION_LSB = 33,
UMP_CC_BREATH_LSB = 34,
UMP_CC_FOOT_LSB = 36,
UMP_CC_PORTAMENTO_TIME_LSB = 37,
UMP_CC_DATA_LSB = 38,
UMP_CC_VOLUME_LSB = 39,
UMP_CC_BALANCE_LSB = 40,
UMP_CC_PAN_LSB = 42,
UMP_CC_EXPRESSION_LSB = 43,
UMP_CC_EFFECT1_LSB = 44,
UMP_CC_EFFECT2_LSB = 45,
UMP_CC_GP_1_LSB = 48,
UMP_CC_GP_2_LSB = 49,
UMP_CC_GP_3_LSB = 50,
UMP_CC_GP_4_LSB = 51,
UMP_CC_SUSTAIN = 64,
UMP_CC_PORTAMENTO_SWITCH = 65,
UMP_CC_SOSTENUTO = 66,
UMP_CC_SOFT_PEDAL = 67,
UMP_CC_LEGATO = 68,
UMP_CC_HOLD_2 = 69,
UMP_CC_SOUND_CONTROLLER_1 = 70,
UMP_CC_SOUND_CONTROLLER_2 = 71,
UMP_CC_SOUND_CONTROLLER_3 = 72,
UMP_CC_SOUND_CONTROLLER_4 = 73,
UMP_CC_SOUND_CONTROLLER_5 = 74,
UMP_CC_SOUND_CONTROLLER_6 = 75,
UMP_CC_SOUND_CONTROLLER_7 = 76,
UMP_CC_SOUND_CONTROLLER_8 = 77,
UMP_CC_SOUND_CONTROLLER_9 = 78,
UMP_CC_SOUND_CONTROLLER_10 = 79,
UMP_CC_GP_5 = 80,
UMP_CC_GP_6 = 81,
UMP_CC_GP_7 = 82,
UMP_CC_GP_8 = 83,
UMP_CC_PORTAMENTO_CONTROL = 84,
UMP_CC_EFFECT_1 = 91,
UMP_CC_EFFECT_2 = 92,
UMP_CC_EFFECT_3 = 93,
UMP_CC_EFFECT_4 = 94,
UMP_CC_EFFECT_5 = 95,
UMP_CC_DATA_INC = 96,
UMP_CC_DATA_DEC = 97,
UMP_CC_NRPN_LSB = 98,
UMP_CC_NRPN_MSB = 99,
UMP_CC_RPN_LSB = 100,
UMP_CC_RPN_MSB = 101,
UMP_CC_ALL_SOUND_OFF = 120,
UMP_CC_RESET_ALL = 121,
UMP_CC_LOCAL_CONTROL = 122,
UMP_CC_ALL_NOTES_OFF = 123,
UMP_CC_OMNI_OFF = 124,
UMP_CC_OMNI_ON = 125,
UMP_CC_POLY_OFF = 126,
UMP_CC_POLY_ON = 127,
};
/* MIDI 1.0 / 2.0 System Messages (0xfx) */
enum {
UMP_SYSTEM_STATUS_MIDI_TIME_CODE = 0xf1,
UMP_SYSTEM_STATUS_SONG_POSITION = 0xf2,
UMP_SYSTEM_STATUS_SONG_SELECT = 0xf3,
UMP_SYSTEM_STATUS_TUNE_REQUEST = 0xf6,
UMP_SYSTEM_STATUS_TIMING_CLOCK = 0xf8,
UMP_SYSTEM_STATUS_START = 0xfa,
UMP_SYSTEM_STATUS_CONTINUE = 0xfb,
UMP_SYSTEM_STATUS_STOP = 0xfc,
UMP_SYSTEM_STATUS_ACTIVE_SENSING = 0xfe,
UMP_SYSTEM_STATUS_RESET = 0xff,
};
/* MIDI 1.0 Realtime and SysEx status messages (0xfx) */
enum {
UMP_MIDI1_MSG_REALTIME = 0xf0, /* mask */
UMP_MIDI1_MSG_SYSEX_START = 0xf0,
UMP_MIDI1_MSG_SYSEX_END = 0xf7,
};
/*
* UMP Message Definitions
*/
/* MIDI 1.0 Note Off / Note On (32bit) */
struct snd_ump_midi1_msg_note {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 velocity:8;
#else
u32 velocity:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
#endif
} __packed;
/* MIDI 1.0 Poly Pressure (32bit) */
struct snd_ump_midi1_msg_paf {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 data:8;
#else
u32 data:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
#endif
} __packed;
/* MIDI 1.0 Control Change (32bit) */
struct snd_ump_midi1_msg_cc {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 index:8;
u32 data:8;
#else
u32 data:8;
u32 index:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
#endif
} __packed;
/* MIDI 1.0 Program Change (32bit) */
struct snd_ump_midi1_msg_program {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 program:8;
u32 reserved:8;
#else
u32 reserved:8;
u32 program:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
ALSA: ump: Correct snd_ump_midi1_msg_program definition The #endif is placed obviously at a wrong position, which caused a build error on the big endian machine. Fixes: 0b5288f5fe63 ("ALSA: ump: Add legacy raw MIDI support") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/r/20230524135448.3ecad334@canb.auug.org.au Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-24 13:54:48 +10:00
#endif
ALSA: ump: Add legacy raw MIDI support This patch extends the UMP core code to support the legacy MIDI 1.0 rawmidi devices. When the new kconfig CONFIG_SND_UMP_LEGACY_RAWMIDI is set, the UMP core allows to attach an additional rawmidi device for each UMP Endpoint. The rawmidi device contains 16 substreams where each substream corresponds to a UMP Group belonging to the EP. The device reads/writes the legacy MIDI 1.0 byte streams and translates from/to UMP packets. The legacy rawmidi devices are exclusive with the UMP rawmidi devices, hence both of them can't be opened at the same time unless the UMP rawmidi is opened in APPEND mode. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20230523075358.9672-15-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 09:53:35 +02:00
} __packed;
/* MIDI 1.0 Channel Pressure (32bit) */
struct snd_ump_midi1_msg_caf {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 data:8;
u32 reserved:8;
#else
u32 reserved:8;
u32 data:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
#endif
} __packed;
/* MIDI 1.0 Pitch Bend (32bit) */
struct snd_ump_midi1_msg_pitchbend {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 data_lsb:8;
u32 data_msb:8;
#else
u32 data_msb:8;
u32 data_lsb:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
#endif
} __packed;
/* System Common and Real Time messages (32bit); no channel field */
struct snd_ump_system_msg {
#ifdef __BIG_ENDIAN_BITFIELD
u32 type:4;
u32 group:4;
u32 status:8;
u32 parm1:8;
u32 parm2:8;
#else
u32 parm2:8;
u32 parm1:8;
u32 status:8;
u32 group:4;
u32 type:4;
#endif
} __packed;
/* MIDI 1.0 UMP CVM (32bit) */
union snd_ump_midi1_msg {
struct snd_ump_midi1_msg_note note;
struct snd_ump_midi1_msg_paf paf;
struct snd_ump_midi1_msg_cc cc;
struct snd_ump_midi1_msg_program pg;
struct snd_ump_midi1_msg_caf caf;
struct snd_ump_midi1_msg_pitchbend pb;
struct snd_ump_system_msg system;
u32 raw;
};
/* MIDI 2.0 Note Off / Note On (64bit) */
struct snd_ump_midi2_msg_note {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 attribute_type:8;
/* 1 */
u32 velocity:16;
u32 attribute_data:16;
#else
/* 0 */
u32 attribute_type:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 attribute_data:16;
u32 velocity:16;
#endif
} __packed;
/* MIDI 2.0 Poly Pressure (64bit) */
struct snd_ump_midi2_msg_paf {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 reserved:8;
/* 1 */
u32 data;
#else
/* 0 */
u32 reserved:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 Per-Note Controller (64bit) */
struct snd_ump_midi2_msg_pernote_cc {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 index:8;
/* 1 */
u32 data;
#else
/* 0 */
u32 index:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 Per-Note Management (64bit) */
struct snd_ump_midi2_msg_pernote_mgmt {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 flags:8;
/* 1 */
u32 reserved;
#else
/* 0 */
u32 flags:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 reserved;
#endif
} __packed;
/* MIDI 2.0 Control Change (64bit) */
struct snd_ump_midi2_msg_cc {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 index:8;
u32 reserved:8;
/* 1 */
u32 data;
#else
/* 0 */
u32 reserved:8;
u32 index:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 Registered Controller (RPN) / Assignable Controller (NRPN) (64bit) */
struct snd_ump_midi2_msg_rpn {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 bank:8;
u32 index:8;
/* 1 */
u32 data;
#else
/* 0 */
u32 index:8;
u32 bank:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 Program Change (64bit) */
struct snd_ump_midi2_msg_program {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 reserved:15;
u32 bank_valid:1;
/* 1 */
u32 program:8;
u32 reserved2:8;
u32 bank_msb:8;
u32 bank_lsb:8;
#else
/* 0 */
u32 bank_valid:1;
u32 reserved:15;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 bank_lsb:8;
u32 bank_msb:8;
u32 reserved2:8;
u32 program:8;
#endif
} __packed;
/* MIDI 2.0 Channel Pressure (64bit) */
struct snd_ump_midi2_msg_caf {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 reserved:16;
/* 1 */
u32 data;
#else
/* 0 */
u32 reserved:16;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 Pitch Bend (64bit) */
struct snd_ump_midi2_msg_pitchbend {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 reserved:16;
/* 1 */
u32 data;
#else
/* 0 */
u32 reserved:16;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 Per-Note Pitch Bend (64bit) */
struct snd_ump_midi2_msg_pernote_pitchbend {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 group:4;
u32 status:4;
u32 channel:4;
u32 note:8;
u32 reserved:8;
/* 1 */
u32 data;
#else
/* 0 */
u32 reserved:8;
u32 note:8;
u32 channel:4;
u32 status:4;
u32 group:4;
u32 type:4;
/* 1 */
u32 data;
#endif
} __packed;
/* MIDI 2.0 UMP CVM (64bit) */
union snd_ump_midi2_msg {
struct snd_ump_midi2_msg_note note;
struct snd_ump_midi2_msg_paf paf;
struct snd_ump_midi2_msg_pernote_cc pernote_cc;
struct snd_ump_midi2_msg_pernote_mgmt pernote_mgmt;
struct snd_ump_midi2_msg_cc cc;
struct snd_ump_midi2_msg_rpn rpn;
struct snd_ump_midi2_msg_program pg;
struct snd_ump_midi2_msg_caf caf;
struct snd_ump_midi2_msg_pitchbend pb;
struct snd_ump_midi2_msg_pernote_pitchbend pernote_pb;
u32 raw[2];
};
ALSA: ump: Support UMP Endpoint and Function Block parsing This patch adds the basic support for UMP Endpoint and UMP Function Block parsing, which are extended in the new UMP v1.1 spec. The patch provides a new helper function to perform the query of the UMP Endpoint information and builds up the UMP blocks based on UMP Function Block information. For the communication over the UMP Endpoint, it opens the rawmidi device once internally, inquiries the UMP Endpoint and Function Block info by sending new UMP Stream messages, and waits for the response for each query. The new UMP spec allows to update the FB info and change its associated groups or its activeness on the fly, too. For catching it, the UMP core keeps watching the incoming UMP messages, and snd_ump_receive() handles the incoming UMP Stream messages to refresh the FB info. Link: https://lore.kernel.org/r/20230612081054.17200-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 10:10:46 +02:00
/* UMP Stream Message: Endpoint Discovery (128bit) */
struct snd_ump_stream_msg_ep_discovery {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 format:2;
u32 status:10;
u32 ump_version_major:8;
u32 ump_version_minor:8;
/* 1 */
u32 reserved:24;
u32 filter_bitmap:8;
/* 2-3 */
u32 reserved2[2];
#else
/* 0 */
u32 ump_version_minor:8;
u32 ump_version_major:8;
u32 status:10;
u32 format:2;
u32 type:4;
/* 1 */
u32 filter_bitmap:8;
u32 reserved:24;
/* 2-3 */
u32 reserved2[2];
#endif
} __packed;
/* UMP Stream Message: Endpoint Info Notification (128bit) */
struct snd_ump_stream_msg_ep_info {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 format:2;
u32 status:10;
u32 ump_version_major:8;
u32 ump_version_minor:8;
/* 1 */
u32 static_function_block:1;
u32 num_function_blocks:7;
u32 reserved:8;
u32 protocol:8;
u32 reserved2:6;
u32 jrts:2;
/* 2-3 */
u32 reserved3[2];
#else
/* 0 */
u32 ump_version_minor:8;
u32 ump_version_major:8;
u32 status:10;
u32 format:2;
u32 type:4;
/* 1 */
u32 jrts:2;
u32 reserved2:6;
u32 protocol:8;
u32 reserved:8;
u32 num_function_blocks:7;
u32 static_function_block:1;
/* 2-3 */
u32 reserved3[2];
#endif
} __packed;
/* UMP Stream Message: Device Info Notification (128bit) */
struct snd_ump_stream_msg_devince_info {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 format:2;
u32 status:10;
u32 reserved:16;
/* 1 */
u32 manufacture_id;
/* 2 */
u8 family_lsb;
u8 family_msb;
u8 model_lsb;
u8 model_msb;
/* 3 */
u32 sw_revision;
#else
/* 0 */
u32 reserved:16;
u32 status:10;
u32 format:2;
u32 type:4;
/* 1 */
u32 manufacture_id;
/* 2 */
u8 model_msb;
u8 model_lsb;
u8 family_msb;
u8 family_lsb;
/* 3 */
u32 sw_revision;
#endif
} __packed;
/* UMP Stream Message: Stream Config Request / Notification (128bit) */
struct snd_ump_stream_msg_stream_cfg {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 format:2;
u32 status:10;
u32 protocol:8;
u32 reserved:6;
u32 jrts:2;
/* 1-3 */
u32 reserved2[3];
#else
/* 0 */
u32 jrts:2;
u32 reserved:6;
u32 protocol:8;
u32 status:10;
u32 format:2;
u32 type:4;
/* 1-3 */
u32 reserved2[3];
#endif
} __packed;
/* UMP Stream Message: Function Block Discovery (128bit) */
struct snd_ump_stream_msg_fb_discovery {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 format:2;
u32 status:10;
u32 function_block_id:8;
u32 filter:8;
/* 1-3 */
u32 reserved[3];
#else
/* 0 */
u32 filter:8;
u32 function_block_id:8;
u32 status:10;
u32 format:2;
u32 type:4;
/* 1-3 */
u32 reserved[3];
#endif
} __packed;
/* UMP Stream Message: Function Block Info Notification (128bit) */
struct snd_ump_stream_msg_fb_info {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u32 type:4;
u32 format:2;
u32 status:10;
u32 active:1;
u32 function_block_id:7;
u32 reserved:2;
u32 ui_hint:2;
u32 midi_10:2;
u32 direction:2;
/* 1 */
u32 first_group:8;
u32 num_groups:8;
u32 midi_ci_version:8;
u32 sysex8_streams:8;
/* 2-3 */
u32 reserved2[2];
#else
/* 0 */
u32 direction:2;
u32 midi_10:2;
u32 ui_hint:2;
u32 reserved:2;
u32 function_block_id:7;
u32 active:1;
u32 status:10;
u32 format:2;
u32 type:4;
/* 1 */
u32 sysex8_streams:8;
u32 midi_ci_version:8;
u32 num_groups:8;
u32 first_group:8;
/* 2-3 */
u32 reserved2[2];
#endif
} __packed;
/* UMP Stream Message: Function Block Name Notification (128bit) */
struct snd_ump_stream_msg_fb_name {
#ifdef __BIG_ENDIAN_BITFIELD
/* 0 */
u16 type:4;
u16 format:2;
u16 status:10;
u8 function_block_id;
u8 name0;
/* 1-3 */
u8 name[12];
#else
/* 0 */
u8 name0;
u8 function_block_id;
u16 status:10;
u16 format:2;
u16 type:4;
/* 1-3 */
u8 name[12]; // FIXME: byte order
#endif
} __packed;
/* MIDI 2.0 Stream Messages (128bit) */
union snd_ump_stream_msg {
struct snd_ump_stream_msg_ep_discovery ep_discovery;
struct snd_ump_stream_msg_ep_info ep_info;
struct snd_ump_stream_msg_devince_info device_info;
struct snd_ump_stream_msg_stream_cfg stream_cfg;
struct snd_ump_stream_msg_fb_discovery fb_discovery;
struct snd_ump_stream_msg_fb_info fb_info;
struct snd_ump_stream_msg_fb_name fb_name;
u32 raw[4];
};
ALSA: ump: Add legacy raw MIDI support This patch extends the UMP core code to support the legacy MIDI 1.0 rawmidi devices. When the new kconfig CONFIG_SND_UMP_LEGACY_RAWMIDI is set, the UMP core allows to attach an additional rawmidi device for each UMP Endpoint. The rawmidi device contains 16 substreams where each substream corresponds to a UMP Group belonging to the EP. The device reads/writes the legacy MIDI 1.0 byte streams and translates from/to UMP packets. The legacy rawmidi devices are exclusive with the UMP rawmidi devices, hence both of them can't be opened at the same time unless the UMP rawmidi is opened in APPEND mode. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20230523075358.9672-15-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 09:53:35 +02:00
#endif /* __SOUND_UMP_MSG_H */
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