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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /include/uapi/sound/firewire.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/uapi/sound/firewire.h')
-rw-r--r--include/uapi/sound/firewire.h261
1 files changed, 261 insertions, 0 deletions
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
new file mode 100644
index 000000000..3532ac704
--- /dev/null
+++ b/include/uapi/sound/firewire.h
@@ -0,0 +1,261 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
+#define _UAPI_SOUND_FIREWIRE_H_INCLUDED
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/* events can be read() from the hwdep device */
+
+#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc
+#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e
+#define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE 0x4e617475
+#define SNDRV_FIREWIRE_EVENT_DIGI00X_MESSAGE 0x746e736c
+#define SNDRV_FIREWIRE_EVENT_MOTU_NOTIFICATION 0x64776479
+#define SNDRV_FIREWIRE_EVENT_TASCAM_CONTROL 0x7473636d
+#define SNDRV_FIREWIRE_EVENT_MOTU_REGISTER_DSP_CHANGE 0x4d545244
+
+struct snd_firewire_event_common {
+ unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
+};
+
+struct snd_firewire_event_lock_status {
+ unsigned int type;
+ unsigned int status; /* 0/1 = unlocked/locked */
+};
+
+struct snd_firewire_event_dice_notification {
+ unsigned int type;
+ unsigned int notification; /* DICE-specific bits */
+};
+
+#define SND_EFW_TRANSACTION_USER_SEQNUM_MAX ((__u32)((__u16)~0) - 1)
+/* each field should be in big endian */
+struct snd_efw_transaction {
+ __be32 length;
+ __be32 version;
+ __be32 seqnum;
+ __be32 category;
+ __be32 command;
+ __be32 status;
+ __be32 params[];
+};
+struct snd_firewire_event_efw_response {
+ unsigned int type;
+ __be32 response[]; /* some responses */
+};
+
+struct snd_firewire_event_digi00x_message {
+ unsigned int type;
+ __u32 message; /* Digi00x-specific message */
+};
+
+struct snd_firewire_event_motu_notification {
+ unsigned int type;
+ __u32 message; /* MOTU-specific bits. */
+};
+
+struct snd_firewire_tascam_change {
+ unsigned int index;
+ __be32 before;
+ __be32 after;
+};
+
+struct snd_firewire_event_tascam_control {
+ unsigned int type;
+ struct snd_firewire_tascam_change changes[];
+};
+
+struct snd_firewire_event_motu_register_dsp_change {
+ unsigned int type;
+ __u32 count; /* The number of changes. */
+ __u32 changes[]; /* Encoded event for change of register DSP. */
+};
+
+union snd_firewire_event {
+ struct snd_firewire_event_common common;
+ struct snd_firewire_event_lock_status lock_status;
+ struct snd_firewire_event_dice_notification dice_notification;
+ struct snd_firewire_event_efw_response efw_response;
+ struct snd_firewire_event_digi00x_message digi00x_message;
+ struct snd_firewire_event_tascam_control tascam_control;
+ struct snd_firewire_event_motu_notification motu_notification;
+ struct snd_firewire_event_motu_register_dsp_change motu_register_dsp_change;
+};
+
+
+#define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
+#define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9)
+#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
+#define SNDRV_FIREWIRE_IOCTL_TASCAM_STATE _IOR('H', 0xfb, struct snd_firewire_tascam_state)
+#define SNDRV_FIREWIRE_IOCTL_MOTU_REGISTER_DSP_METER _IOR('H', 0xfc, struct snd_firewire_motu_register_dsp_meter)
+#define SNDRV_FIREWIRE_IOCTL_MOTU_COMMAND_DSP_METER _IOR('H', 0xfd, struct snd_firewire_motu_command_dsp_meter)
+#define SNDRV_FIREWIRE_IOCTL_MOTU_REGISTER_DSP_PARAMETER _IOR('H', 0xfe, struct snd_firewire_motu_register_dsp_parameter)
+
+#define SNDRV_FIREWIRE_TYPE_DICE 1
+#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
+#define SNDRV_FIREWIRE_TYPE_BEBOB 3
+#define SNDRV_FIREWIRE_TYPE_OXFW 4
+#define SNDRV_FIREWIRE_TYPE_DIGI00X 5
+#define SNDRV_FIREWIRE_TYPE_TASCAM 6
+#define SNDRV_FIREWIRE_TYPE_MOTU 7
+#define SNDRV_FIREWIRE_TYPE_FIREFACE 8
+
+struct snd_firewire_get_info {
+ unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
+ unsigned int card; /* same as fw_cdev_get_info.card */
+ unsigned char guid[8];
+ char device_name[16]; /* device node in /dev */
+};
+
+/*
+ * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
+ * Returns -EBUSY if the driver is already streaming.
+ */
+
+#define SNDRV_FIREWIRE_TASCAM_STATE_COUNT 64
+
+struct snd_firewire_tascam_state {
+ __be32 data[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
+};
+
+/*
+ * In below MOTU models, software is allowed to control their DSP by accessing to registers.
+ * - 828mk2
+ * - 896hd
+ * - Traveler
+ * - 8 pre
+ * - Ultralite
+ * - 4 pre
+ * - Audio Express
+ *
+ * On the other hand, the status of DSP is split into specific messages included in the sequence of
+ * isochronous packet. ALSA firewire-motu driver gathers the messages and allow userspace applications
+ * to read it via ioctl. In 828mk2, 896hd, and Traveler, hardware meter for all of physical inputs
+ * are put into the message, while one pair of physical outputs is selected. The selection is done by
+ * LSB one byte in asynchronous write quadlet transaction to 0x'ffff'f000'0b2c.
+ *
+ * I note that V3HD/V4HD uses asynchronous transaction for the purpose. The destination address is
+ * registered to 0x'ffff'f000'0b38 and '0b3c by asynchronous write quadlet request. The size of
+ * message differs between 23 and 51 quadlets. For the case, the number of mixer bus can be extended
+ * up to 12.
+ */
+
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_INPUT_COUNT 24
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_OUTPUT_COUNT 24
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_COUNT \
+ (SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_INPUT_COUNT + SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_OUTPUT_COUNT)
+
+/**
+ * struct snd_firewire_motu_register_dsp_meter - the container for meter information in DSP
+ * controlled by register access
+ * @data: Signal level meters. The mapping between position and input/output channel is
+ * model-dependent.
+ *
+ * The structure expresses the part of DSP status for hardware meter. The u8 storage includes linear
+ * value for audio signal level between 0x00 and 0x7f.
+ */
+struct snd_firewire_motu_register_dsp_meter {
+ __u8 data[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_COUNT];
+};
+
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT 4
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT 20
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT 10
+#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT (SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT + 2)
+
+/**
+ * snd_firewire_motu_register_dsp_parameter - the container for parameters of DSP controlled
+ * by register access.
+ * @mixer.source.gain: The gain of source to mixer.
+ * @mixer.source.pan: The L/R balance of source to mixer.
+ * @mixer.source.flag: The flag of source to mixer, including mute, solo.
+ * @mixer.source.paired_balance: The L/R balance of paired source to mixer, only for 4 pre and
+ * Audio Express.
+ * @mixer.source.paired_width: The width of paired source to mixer, only for 4 pre and
+ * Audio Express.
+ * @mixer.output.paired_volume: The volume of paired output from mixer.
+ * @mixer.output.paired_flag: The flag of paired output from mixer.
+ * @output.main_paired_volume: The volume of paired main output.
+ * @output.hp_paired_volume: The volume of paired hp output.
+ * @output.hp_paired_assignment: The source assigned to paired hp output.
+ * @output.reserved: Padding for 32 bit alignment for future extension.
+ * @line_input.boost_flag: The flags of boost for line inputs, only for 828mk2 and Traveler.
+ * @line_input.nominal_level_flag: The flags of nominal level for line inputs, only for 828mk2 and
+ * Traveler.
+ * @line_input.reserved: Padding for 32 bit alignment for future extension.
+ * @input.gain_and_invert: The value including gain and invert for input, only for Ultralite, 4 pre
+ * and Audio Express.
+ * @input.flag: The flag of input; e.g. jack detection, phantom power, and pad, only for Ultralite,
+ * 4 pre and Audio express.
+ * @reserved: Padding so that the size of structure is kept to 512 byte, but for future extension.
+ *
+ * The structure expresses the set of parameters for DSP controlled by register access.
+ */
+struct snd_firewire_motu_register_dsp_parameter {
+ struct {
+ struct {
+ __u8 gain[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
+ __u8 pan[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
+ __u8 flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
+ __u8 paired_balance[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
+ __u8 paired_width[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];
+ } source[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
+ struct {
+ __u8 paired_volume[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
+ __u8 paired_flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
+ } output;
+ } mixer;
+ struct {
+ __u8 main_paired_volume;
+ __u8 hp_paired_volume;
+ __u8 hp_paired_assignment;
+ __u8 reserved[5];
+ } output;
+ struct {
+ __u8 boost_flag;
+ __u8 nominal_level_flag;
+ __u8 reserved[6];
+ } line_input;
+ struct {
+ __u8 gain_and_invert[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT];
+ __u8 flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT];
+ } input;
+ __u8 reserved[64];
+};
+
+/*
+ * In below MOTU models, software is allowed to control their DSP by command in frame of
+ * asynchronous transaction to 0x'ffff'0001'0000:
+ *
+ * - 828 mk3 (FireWire only and Hybrid)
+ * - 896 mk3 (FireWire only and Hybrid)
+ * - Ultralite mk3 (FireWire only and Hybrid)
+ * - Traveler mk3
+ * - Track 16
+ *
+ * On the other hand, the states of hardware meter is split into specific messages included in the
+ * sequence of isochronous packet. ALSA firewire-motu driver gathers the message and allow userspace
+ * application to read it via ioctl.
+ */
+
+#define SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT 400
+
+/**
+ * struct snd_firewire_motu_command_dsp_meter - the container for meter information in DSP
+ * controlled by command
+ * @data: Signal level meters. The mapping between position and signal channel is model-dependent.
+ *
+ * The structure expresses the part of DSP status for hardware meter. The 32 bit storage is
+ * estimated to include IEEE 764 32 bit single precision floating point (binary32) value. It is
+ * expected to be linear value (not logarithm) for audio signal level between 0.0 and +1.0.
+ */
+struct snd_firewire_motu_command_dsp_meter {
+#ifdef __KERNEL__
+ __u32 data[SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT];
+#else
+ float data[SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT];
+#endif
+};
+
+#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */