/* SPDX-License-Identifier: GPL-2.0-only */ /* * tascam.h - a part of driver for TASCAM FireWire series * * Copyright (c) 2015 Takashi Sakamoto */ #ifndef SOUND_TASCAM_H_INCLUDED #define SOUND_TASCAM_H_INCLUDED #include <linux/device.h> #include <linux/firewire.h> #include <linux/firewire-constants.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/compat.h> #include <linux/sched/signal.h> #include <sound/core.h> #include <sound/initval.h> #include <sound/info.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/firewire.h> #include <sound/hwdep.h> #include <sound/rawmidi.h> #include "../lib.h" #include "../amdtp-stream.h" #include "../iso-resources.h" struct snd_tscm_spec { … }; #define TSCM_MIDI_IN_PORT_MAX … #define TSCM_MIDI_OUT_PORT_MAX … struct snd_fw_async_midi_port { … }; #define SND_TSCM_QUEUE_COUNT … struct snd_tscm { … }; #define TSCM_ADDR_BASE … #define TSCM_OFFSET_FIRMWARE_REGISTER … #define TSCM_OFFSET_FIRMWARE_FPGA … #define TSCM_OFFSET_FIRMWARE_ARM … #define TSCM_OFFSET_FIRMWARE_HW … #define TSCM_OFFSET_ISOC_TX_CH … #define TSCM_OFFSET_UNKNOWN … #define TSCM_OFFSET_START_STREAMING … #define TSCM_OFFSET_ISOC_RX_CH … #define TSCM_OFFSET_ISOC_RX_ON … #define TSCM_OFFSET_TX_PCM_CHANNELS … #define TSCM_OFFSET_RX_PCM_CHANNELS … #define TSCM_OFFSET_MULTIPLEX_MODE … #define TSCM_OFFSET_ISOC_TX_ON … /* Unknown 0x0224 */ #define TSCM_OFFSET_CLOCK_STATUS … #define TSCM_OFFSET_SET_OPTION … #define TSCM_OFFSET_MIDI_TX_ON … #define TSCM_OFFSET_MIDI_TX_ADDR_HI … #define TSCM_OFFSET_MIDI_TX_ADDR_LO … #define TSCM_OFFSET_LED_POWER … #define TSCM_OFFSET_MIDI_RX_QUAD … // Although FE-8 supports the above registers, it has no I/O interfaces for // audio samples and music messages. Otherwise it supports another notification // for status and control message as well as LED brightening. The message // consists of quadlet-aligned data up to 32 quadlets. The first byte of message // is fixed to 0x40. The second byte is between 0x00 to 0x1f and represent each // control: // fader: 0x00-0x07 // button: 0x0d, 0x0e // knob: 0x14-0x1b // sensing: 0x0b // // The rest two bytes represent state of the controls; e.g. current value for // fader and knob, bitmasks for button and sensing. // Just after turning on, 32 quadlets messages with 0x00-0x1f are immediately // sent in one transaction. After, several quadlets are sent in one transaction. // // TSCM_OFFSET_FE8_CTL_TX_ON 0x0310 // TSCM_OFFSET_FE8_CTL_TX_ADDR_HI 0x0314 // TSCM_OFFSET_FE8_CTL_TX_ADDR_LO 0x0318 enum snd_tscm_clock { … }; int amdtp_tscm_init(struct amdtp_stream *s, struct fw_unit *unit, enum amdtp_stream_direction dir, unsigned int pcm_channels); int amdtp_tscm_set_parameters(struct amdtp_stream *s, unsigned int rate); int amdtp_tscm_add_pcm_hw_constraints(struct amdtp_stream *s, struct snd_pcm_runtime *runtime); int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate); int snd_tscm_stream_get_clock(struct snd_tscm *tscm, enum snd_tscm_clock *clock); int snd_tscm_stream_init_duplex(struct snd_tscm *tscm); void snd_tscm_stream_update_duplex(struct snd_tscm *tscm); void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm); int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate, unsigned int frames_per_period, unsigned int frames_per_buffer); int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate); void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm); void snd_tscm_stream_lock_changed(struct snd_tscm *tscm); int snd_tscm_stream_lock_try(struct snd_tscm *tscm); void snd_tscm_stream_lock_release(struct snd_tscm *tscm); void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port); static inline void snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port, struct snd_rawmidi_substream *substream) { … } static inline void snd_fw_async_midi_port_finish(struct snd_fw_async_midi_port *port) { … } int snd_tscm_transaction_register(struct snd_tscm *tscm); int snd_tscm_transaction_reregister(struct snd_tscm *tscm); void snd_tscm_transaction_unregister(struct snd_tscm *tscm); void snd_tscm_proc_init(struct snd_tscm *tscm); int snd_tscm_create_pcm_devices(struct snd_tscm *tscm); int snd_tscm_create_midi_devices(struct snd_tscm *tscm); int snd_tscm_create_hwdep_device(struct snd_tscm *tscm); #endif
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