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212 lines
6.2 KiB
212 lines
6.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* tascam.h - a part of driver for TASCAM FireWire series |
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* |
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* Copyright (c) 2015 Takashi Sakamoto |
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*/ |
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#ifndef SOUND_TASCAM_H_INCLUDED |
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#define SOUND_TASCAM_H_INCLUDED |
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#include <linux/device.h> |
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#include <linux/firewire.h> |
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#include <linux/firewire-constants.h> |
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#include <linux/module.h> |
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#include <linux/mod_devicetable.h> |
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#include <linux/mutex.h> |
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#include <linux/slab.h> |
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#include <linux/compat.h> |
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#include <linux/sched/signal.h> |
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#include <sound/core.h> |
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#include <sound/initval.h> |
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#include <sound/info.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/firewire.h> |
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#include <sound/hwdep.h> |
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#include <sound/rawmidi.h> |
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#include "../lib.h" |
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#include "../amdtp-stream.h" |
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#include "../iso-resources.h" |
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struct snd_tscm_spec { |
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const char *const name; |
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bool has_adat; |
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bool has_spdif; |
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unsigned int pcm_capture_analog_channels; |
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unsigned int pcm_playback_analog_channels; |
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unsigned int midi_capture_ports; |
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unsigned int midi_playback_ports; |
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}; |
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#define TSCM_MIDI_IN_PORT_MAX 4 |
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#define TSCM_MIDI_OUT_PORT_MAX 4 |
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struct snd_fw_async_midi_port { |
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struct fw_device *parent; |
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struct work_struct work; |
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bool idling; |
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ktime_t next_ktime; |
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bool error; |
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struct fw_transaction transaction; |
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u8 buf[4]; |
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u8 running_status; |
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bool on_sysex; |
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struct snd_rawmidi_substream *substream; |
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int consume_bytes; |
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}; |
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#define SND_TSCM_QUEUE_COUNT 16 |
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struct snd_tscm { |
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struct snd_card *card; |
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struct fw_unit *unit; |
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struct mutex mutex; |
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spinlock_t lock; |
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const struct snd_tscm_spec *spec; |
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struct fw_iso_resources tx_resources; |
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struct fw_iso_resources rx_resources; |
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struct amdtp_stream tx_stream; |
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struct amdtp_stream rx_stream; |
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unsigned int substreams_counter; |
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int dev_lock_count; |
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bool dev_lock_changed; |
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wait_queue_head_t hwdep_wait; |
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/* For MIDI message incoming transactions. */ |
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struct fw_address_handler async_handler; |
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struct snd_rawmidi_substream *tx_midi_substreams[TSCM_MIDI_IN_PORT_MAX]; |
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/* For MIDI message outgoing transactions. */ |
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struct snd_fw_async_midi_port out_ports[TSCM_MIDI_OUT_PORT_MAX]; |
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// A cache of status information in tx isoc packets. |
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__be32 state[SNDRV_FIREWIRE_TASCAM_STATE_COUNT]; |
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struct snd_hwdep *hwdep; |
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struct snd_firewire_tascam_change queue[SND_TSCM_QUEUE_COUNT]; |
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unsigned int pull_pos; |
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unsigned int push_pos; |
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struct amdtp_domain domain; |
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bool need_long_tx_init_skip; |
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}; |
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#define TSCM_ADDR_BASE 0xffff00000000ull |
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#define TSCM_OFFSET_FIRMWARE_REGISTER 0x0000 |
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#define TSCM_OFFSET_FIRMWARE_FPGA 0x0004 |
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#define TSCM_OFFSET_FIRMWARE_ARM 0x0008 |
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#define TSCM_OFFSET_FIRMWARE_HW 0x000c |
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#define TSCM_OFFSET_ISOC_TX_CH 0x0200 |
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#define TSCM_OFFSET_UNKNOWN 0x0204 |
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#define TSCM_OFFSET_START_STREAMING 0x0208 |
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#define TSCM_OFFSET_ISOC_RX_CH 0x020c |
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#define TSCM_OFFSET_ISOC_RX_ON 0x0210 /* Little conviction. */ |
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#define TSCM_OFFSET_TX_PCM_CHANNELS 0x0214 |
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#define TSCM_OFFSET_RX_PCM_CHANNELS 0x0218 |
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#define TSCM_OFFSET_MULTIPLEX_MODE 0x021c |
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#define TSCM_OFFSET_ISOC_TX_ON 0x0220 |
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/* Unknown 0x0224 */ |
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#define TSCM_OFFSET_CLOCK_STATUS 0x0228 |
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#define TSCM_OFFSET_SET_OPTION 0x022c |
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#define TSCM_OFFSET_MIDI_TX_ON 0x0300 |
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#define TSCM_OFFSET_MIDI_TX_ADDR_HI 0x0304 |
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#define TSCM_OFFSET_MIDI_TX_ADDR_LO 0x0308 |
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#define TSCM_OFFSET_LED_POWER 0x0404 |
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#define TSCM_OFFSET_MIDI_RX_QUAD 0x4000 |
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// Although FE-8 supports the above registers, it has no I/O interfaces for |
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// audio samples and music messages. Otherwise it supports another notification |
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// for status and control message as well as LED brightening. The message |
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// consists of quadlet-aligned data up to 32 quadlets. The first byte of message |
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// is fixed to 0x40. The second byte is between 0x00 to 0x1f and represent each |
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// control: |
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// fader: 0x00-0x07 |
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// button: 0x0d, 0x0e |
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// knob: 0x14-0x1b |
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// sensing: 0x0b |
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// |
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// The rest two bytes represent state of the controls; e.g. current value for |
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// fader and knob, bitmasks for button and sensing. |
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// Just after turning on, 32 quadlets messages with 0x00-0x1f are immediately |
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// sent in one transaction. After, several quadlets are sent in one transaction. |
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// |
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// TSCM_OFFSET_FE8_CTL_TX_ON 0x0310 |
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// TSCM_OFFSET_FE8_CTL_TX_ADDR_HI 0x0314 |
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// TSCM_OFFSET_FE8_CTL_TX_ADDR_LO 0x0318 |
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enum snd_tscm_clock { |
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SND_TSCM_CLOCK_INTERNAL = 0, |
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SND_TSCM_CLOCK_WORD = 1, |
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SND_TSCM_CLOCK_SPDIF = 2, |
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SND_TSCM_CLOCK_ADAT = 3, |
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}; |
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int amdtp_tscm_init(struct amdtp_stream *s, struct fw_unit *unit, |
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enum amdtp_stream_direction dir, unsigned int pcm_channels); |
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int amdtp_tscm_set_parameters(struct amdtp_stream *s, unsigned int rate); |
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int amdtp_tscm_add_pcm_hw_constraints(struct amdtp_stream *s, |
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struct snd_pcm_runtime *runtime); |
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int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate); |
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int snd_tscm_stream_get_clock(struct snd_tscm *tscm, |
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enum snd_tscm_clock *clock); |
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int snd_tscm_stream_init_duplex(struct snd_tscm *tscm); |
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void snd_tscm_stream_update_duplex(struct snd_tscm *tscm); |
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void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm); |
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int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate, |
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unsigned int frames_per_period, |
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unsigned int frames_per_buffer); |
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int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate); |
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void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm); |
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void snd_tscm_stream_lock_changed(struct snd_tscm *tscm); |
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int snd_tscm_stream_lock_try(struct snd_tscm *tscm); |
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void snd_tscm_stream_lock_release(struct snd_tscm *tscm); |
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void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port); |
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static inline void |
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snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port, |
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struct snd_rawmidi_substream *substream) |
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{ |
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if (!port->error) { |
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port->substream = substream; |
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schedule_work(&port->work); |
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} |
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} |
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static inline void |
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snd_fw_async_midi_port_finish(struct snd_fw_async_midi_port *port) |
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{ |
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port->substream = NULL; |
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cancel_work_sync(&port->work); |
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port->error = false; |
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} |
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int snd_tscm_transaction_register(struct snd_tscm *tscm); |
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int snd_tscm_transaction_reregister(struct snd_tscm *tscm); |
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void snd_tscm_transaction_unregister(struct snd_tscm *tscm); |
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void snd_tscm_proc_init(struct snd_tscm *tscm); |
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int snd_tscm_create_pcm_devices(struct snd_tscm *tscm); |
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int snd_tscm_create_midi_devices(struct snd_tscm *tscm); |
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int snd_tscm_create_hwdep_device(struct snd_tscm *tscm); |
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#endif
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