288 lines
11 KiB
C
288 lines
11 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
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#define _UAPI_SOUND_FIREWIRE_H_INCLUDED
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#include <linux/ioctl.h>
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#include <linux/types.h>
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/* events can be read() from the hwdep device */
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#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc
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#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e
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#define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE 0x4e617475
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#define SNDRV_FIREWIRE_EVENT_DIGI00X_MESSAGE 0x746e736c
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#define SNDRV_FIREWIRE_EVENT_MOTU_NOTIFICATION 0x64776479
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#define SNDRV_FIREWIRE_EVENT_TASCAM_CONTROL 0x7473636d
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#define SNDRV_FIREWIRE_EVENT_MOTU_REGISTER_DSP_CHANGE 0x4d545244
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#define SNDRV_FIREWIRE_EVENT_FF400_MESSAGE 0x4f6c6761
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struct snd_firewire_event_common {
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unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
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};
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struct snd_firewire_event_lock_status {
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unsigned int type;
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unsigned int status; /* 0/1 = unlocked/locked */
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};
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struct snd_firewire_event_dice_notification {
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unsigned int type;
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unsigned int notification; /* DICE-specific bits */
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};
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#define SND_EFW_TRANSACTION_USER_SEQNUM_MAX ((__u32)((__u16)~0) - 1)
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/* each field should be in big endian */
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struct snd_efw_transaction {
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__be32 length;
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__be32 version;
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__be32 seqnum;
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__be32 category;
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__be32 command;
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__be32 status;
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__be32 params[];
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};
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struct snd_firewire_event_efw_response {
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unsigned int type;
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__be32 response[]; /* some responses */
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};
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struct snd_firewire_event_digi00x_message {
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unsigned int type;
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__u32 message; /* Digi00x-specific message */
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};
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struct snd_firewire_event_motu_notification {
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unsigned int type;
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__u32 message; /* MOTU-specific bits. */
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};
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struct snd_firewire_tascam_change {
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unsigned int index;
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__be32 before;
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__be32 after;
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};
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struct snd_firewire_event_tascam_control {
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unsigned int type;
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struct snd_firewire_tascam_change changes[];
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};
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struct snd_firewire_event_motu_register_dsp_change {
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unsigned int type;
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__u32 count; /* The number of changes. */
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__u32 changes[]; /* Encoded event for change of register DSP. */
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};
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/**
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* struct snd_firewire_event_ff400_message - the container for message from Fireface 400 when
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* operating hardware knob.
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*
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* @type: Fixed to SNDRV_FIREWIRE_EVENT_FF400_MESSAGE.
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* @message_count: The number of messages.
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* @messages.message: The messages expressing hardware knob operation.
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* @messages.tstamp: The isochronous cycle at which the request subaction of asynchronous
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* transaction was sent to deliver the message. It has 16 bit unsigned integer
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* value. The higher 3 bits of value expresses the lower three bits of second
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* field in the format of CYCLE_TIME, up to 7. The rest 13 bits expresses cycle
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* field up to 7999.
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*
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* The structure expresses message transmitted by Fireface 400 when operating hardware knob.
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*/
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struct snd_firewire_event_ff400_message {
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unsigned int type;
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unsigned int message_count;
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struct {
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__u32 message;
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__u32 tstamp;
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} messages[];
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};
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union snd_firewire_event {
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struct snd_firewire_event_common common;
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struct snd_firewire_event_lock_status lock_status;
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struct snd_firewire_event_dice_notification dice_notification;
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struct snd_firewire_event_efw_response efw_response;
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struct snd_firewire_event_digi00x_message digi00x_message;
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struct snd_firewire_event_tascam_control tascam_control;
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struct snd_firewire_event_motu_notification motu_notification;
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struct snd_firewire_event_motu_register_dsp_change motu_register_dsp_change;
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struct snd_firewire_event_ff400_message ff400_message;
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};
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#define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
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#define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9)
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#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
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#define SNDRV_FIREWIRE_IOCTL_TASCAM_STATE _IOR('H', 0xfb, struct snd_firewire_tascam_state)
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#define SNDRV_FIREWIRE_IOCTL_MOTU_REGISTER_DSP_METER _IOR('H', 0xfc, struct snd_firewire_motu_register_dsp_meter)
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#define SNDRV_FIREWIRE_IOCTL_MOTU_COMMAND_DSP_METER _IOR('H', 0xfd, struct snd_firewire_motu_command_dsp_meter)
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#define SNDRV_FIREWIRE_IOCTL_MOTU_REGISTER_DSP_PARAMETER _IOR('H', 0xfe, struct snd_firewire_motu_register_dsp_parameter)
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#define SNDRV_FIREWIRE_TYPE_DICE 1
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#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
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#define SNDRV_FIREWIRE_TYPE_BEBOB 3
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#define SNDRV_FIREWIRE_TYPE_OXFW 4
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#define SNDRV_FIREWIRE_TYPE_DIGI00X 5
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#define SNDRV_FIREWIRE_TYPE_TASCAM 6
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#define SNDRV_FIREWIRE_TYPE_MOTU 7
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#define SNDRV_FIREWIRE_TYPE_FIREFACE 8
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struct snd_firewire_get_info {
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unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
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unsigned int card; /* same as fw_cdev_get_info.card */
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unsigned char guid[8];
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char device_name[16]; /* device node in /dev */
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};
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/*
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* SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
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* Returns -EBUSY if the driver is already streaming.
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*/
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#define SNDRV_FIREWIRE_TASCAM_STATE_COUNT 64
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struct snd_firewire_tascam_state {
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__be32 data[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
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};
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/*
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* In below MOTU models, software is allowed to control their DSP by accessing to registers.
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* - 828mk2
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* - 896hd
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* - Traveler
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* - 8 pre
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* - Ultralite
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* - 4 pre
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* - Audio Express
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*
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* On the other hand, the status of DSP is split into specific messages included in the sequence of
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* isochronous packet. ALSA firewire-motu driver gathers the messages and allow userspace applications
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* to read it via ioctl. In 828mk2, 896hd, and Traveler, hardware meter for all of physical inputs
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* are put into the message, while one pair of physical outputs is selected. The selection is done by
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* LSB one byte in asynchronous write quadlet transaction to 0x'ffff'f000'0b2c.
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*
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* I note that V3HD/V4HD uses asynchronous transaction for the purpose. The destination address is
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* registered to 0x'ffff'f000'0b38 and '0b3c by asynchronous write quadlet request. The size of
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* message differs between 23 and 51 quadlets. For the case, the number of mixer bus can be extended
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* up to 12.
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*/
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_INPUT_COUNT 24
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_OUTPUT_COUNT 24
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_COUNT \
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(SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_INPUT_COUNT + SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_OUTPUT_COUNT)
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/**
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* struct snd_firewire_motu_register_dsp_meter - the container for meter information in DSP
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* controlled by register access
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* @data: Signal level meters. The mapping between position and input/output channel is
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* model-dependent.
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*
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* The structure expresses the part of DSP status for hardware meter. The u8 storage includes linear
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* value for audio signal level between 0x00 and 0x7f.
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*/
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struct snd_firewire_motu_register_dsp_meter {
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__u8 data[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_COUNT];
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};
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT 4
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT 20
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT 10
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#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT (SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT + 2)
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/**
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* snd_firewire_motu_register_dsp_parameter - the container for parameters of DSP controlled
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* by register access.
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* @mixer.source.gain: The gain of source to mixer.
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* @mixer.source.pan: The L/R balance of source to mixer.
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* @mixer.source.flag: The flag of source to mixer, including mute, solo.
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* @mixer.source.paired_balance: The L/R balance of paired source to mixer, only for 4 pre and
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* Audio Express.
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* @mixer.source.paired_width: The width of paired source to mixer, only for 4 pre and
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* Audio Express.
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* @mixer.output.paired_volume: The volume of paired output from mixer.
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* @mixer.output.paired_flag: The flag of paired output from mixer.
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* @output.main_paired_volume: The volume of paired main output.
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* @output.hp_paired_volume: The volume of paired hp output.
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* @output.hp_paired_assignment: The source assigned to paired hp output.
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* @output.reserved: Padding for 32 bit alignment for future extension.
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* @line_input.boost_flag: The flags of boost for line inputs, only for 828mk2 and Traveler.
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* @line_input.nominal_level_flag: The flags of nominal level for line inputs, only for 828mk2 and
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* Traveler.
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* @line_input.reserved: Padding for 32 bit alignment for future extension.
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* @input.gain_and_invert: The value including gain and invert for input, only for Ultralite, 4 pre
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* and Audio Express.
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* @input.flag: The flag of input; e.g. jack detection, phantom power, and pad, only for Ultralite,
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* 4 pre and Audio express.
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* @reserved: Padding so that the size of structure is kept to 512 byte, but for future extension.
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*
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* The structure expresses the set of parameters for DSP controlled by register access.
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*/
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struct snd_firewire_motu_register_dsp_parameter {
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struct {
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struct {
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__u8 gain[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
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__u8 pan[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
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__u8 flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
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__u8 paired_balance[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
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__u8 paired_width[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
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} source[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
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struct {
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__u8 paired_volume[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
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__u8 paired_flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
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} output;
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} mixer;
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struct {
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__u8 main_paired_volume;
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__u8 hp_paired_volume;
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__u8 hp_paired_assignment;
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__u8 reserved[5];
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} output;
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struct {
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__u8 boost_flag;
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__u8 nominal_level_flag;
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__u8 reserved[6];
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} line_input;
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struct {
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__u8 gain_and_invert[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT];
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__u8 flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT];
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} input;
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__u8 reserved[64];
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};
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/*
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* In below MOTU models, software is allowed to control their DSP by command in frame of
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* asynchronous transaction to 0x'ffff'0001'0000:
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*
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* - 828 mk3 (FireWire only and Hybrid)
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* - 896 mk3 (FireWire only and Hybrid)
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* - Ultralite mk3 (FireWire only and Hybrid)
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* - Traveler mk3
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* - Track 16
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*
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* On the other hand, the states of hardware meter is split into specific messages included in the
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* sequence of isochronous packet. ALSA firewire-motu driver gathers the message and allow userspace
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* application to read it via ioctl.
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*/
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#define SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT 400
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/**
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* struct snd_firewire_motu_command_dsp_meter - the container for meter information in DSP
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* controlled by command
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* @data: Signal level meters. The mapping between position and signal channel is model-dependent.
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*
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* The structure expresses the part of DSP status for hardware meter. The 32 bit storage is
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* estimated to include IEEE 764 32 bit single precision floating point (binary32) value. It is
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* expected to be linear value (not logarithm) for audio signal level between 0.0 and +1.0.
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*/
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struct snd_firewire_motu_command_dsp_meter {
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#ifdef __KERNEL__
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__u32 data[SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT];
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#else
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float data[SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT];
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#endif
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};
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#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */
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