diff options
Diffstat (limited to 'include/uapi/sound/firewire.h')
| -rw-r--r-- | include/uapi/sound/firewire.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h index ae12826ed641..39cf6eb75940 100644 --- a/include/uapi/sound/firewire.h +++ b/include/uapi/sound/firewire.h @@ -13,6 +13,7 @@ #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 */ @@ -65,6 +66,12 @@ struct snd_firewire_event_tascam_control { struct snd_firewire_tascam_change changes[0]; }; +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; @@ -73,6 +80,7 @@ union snd_firewire_event { 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; }; @@ -80,6 +88,9 @@ union snd_firewire_event { #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 @@ -108,4 +119,143 @@ 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 */ |