274 lines
9.1 KiB
C
274 lines
9.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* motu.h - a part of driver for MOTU FireWire series
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*
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* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
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*/
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#ifndef SOUND_FIREWIRE_MOTU_H_INCLUDED
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#define SOUND_FIREWIRE_MOTU_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/control.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/info.h>
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#include <sound/rawmidi.h>
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#include <sound/firewire.h>
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#include <sound/hwdep.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_motu_packet_format {
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unsigned char midi_flag_offset;
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unsigned char midi_byte_offset;
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unsigned char pcm_byte_offset;
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unsigned char msg_chunks;
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unsigned char pcm_chunks[3];
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};
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struct amdtp_motu_cache {
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unsigned int *event_offsets;
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unsigned int size;
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unsigned int tail;
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unsigned int tx_cycle_count;
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unsigned int head;
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unsigned int rx_cycle_count;
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};
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struct snd_motu {
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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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/* Model dependent information. */
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const struct snd_motu_spec *spec;
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/* For packet streaming */
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struct snd_motu_packet_format tx_packet_formats;
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struct snd_motu_packet_format rx_packet_formats;
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struct amdtp_stream tx_stream;
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struct amdtp_stream rx_stream;
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struct fw_iso_resources tx_resources;
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struct fw_iso_resources rx_resources;
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unsigned int substreams_counter;
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/* For notification. */
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struct fw_address_handler async_handler;
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u32 msg;
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/* For uapi */
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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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struct amdtp_domain domain;
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struct amdtp_motu_cache cache;
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};
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enum snd_motu_spec_flags {
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SND_MOTU_SPEC_RX_MIDI_2ND_Q = 0x0001,
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SND_MOTU_SPEC_RX_MIDI_3RD_Q = 0x0002,
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SND_MOTU_SPEC_TX_MIDI_2ND_Q = 0x0004,
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SND_MOTU_SPEC_TX_MIDI_3RD_Q = 0x0008,
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};
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#define SND_MOTU_CLOCK_RATE_COUNT 6
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extern const unsigned int snd_motu_clock_rates[SND_MOTU_CLOCK_RATE_COUNT];
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enum snd_motu_clock_source {
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SND_MOTU_CLOCK_SOURCE_INTERNAL,
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SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB,
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SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT,
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SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A,
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SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B,
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SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT,
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SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A,
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SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B,
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SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX,
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SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR,
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SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC,
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SND_MOTU_CLOCK_SOURCE_SPH,
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SND_MOTU_CLOCK_SOURCE_UNKNOWN,
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};
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enum snd_motu_protocol_version {
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SND_MOTU_PROTOCOL_V1,
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SND_MOTU_PROTOCOL_V2,
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SND_MOTU_PROTOCOL_V3,
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};
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struct snd_motu_spec {
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const char *const name;
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enum snd_motu_protocol_version protocol_version;
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// The combination of snd_motu_spec_flags enumeration-constants.
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unsigned int flags;
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unsigned char tx_fixed_pcm_chunks[3];
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unsigned char rx_fixed_pcm_chunks[3];
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};
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extern const struct snd_motu_spec snd_motu_spec_828;
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extern const struct snd_motu_spec snd_motu_spec_896;
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extern const struct snd_motu_spec snd_motu_spec_828mk2;
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extern const struct snd_motu_spec snd_motu_spec_896hd;
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extern const struct snd_motu_spec snd_motu_spec_traveler;
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extern const struct snd_motu_spec snd_motu_spec_ultralite;
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extern const struct snd_motu_spec snd_motu_spec_8pre;
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extern const struct snd_motu_spec snd_motu_spec_828mk3_fw;
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extern const struct snd_motu_spec snd_motu_spec_828mk3_hybrid;
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extern const struct snd_motu_spec snd_motu_spec_ultralite_mk3;
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extern const struct snd_motu_spec snd_motu_spec_audio_express;
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extern const struct snd_motu_spec snd_motu_spec_4pre;
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int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
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enum amdtp_stream_direction dir,
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const struct snd_motu_spec *spec,
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struct amdtp_motu_cache *cache);
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int amdtp_motu_set_parameters(struct amdtp_stream *s, unsigned int rate,
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unsigned int midi_ports,
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struct snd_motu_packet_format *formats);
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int amdtp_motu_add_pcm_hw_constraints(struct amdtp_stream *s,
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struct snd_pcm_runtime *runtime);
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void amdtp_motu_midi_trigger(struct amdtp_stream *s, unsigned int port,
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struct snd_rawmidi_substream *midi);
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int snd_motu_transaction_read(struct snd_motu *motu, u32 offset, __be32 *reg,
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size_t size);
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int snd_motu_transaction_write(struct snd_motu *motu, u32 offset, __be32 *reg,
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size_t size);
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int snd_motu_transaction_register(struct snd_motu *motu);
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int snd_motu_transaction_reregister(struct snd_motu *motu);
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void snd_motu_transaction_unregister(struct snd_motu *motu);
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int snd_motu_stream_init_duplex(struct snd_motu *motu);
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void snd_motu_stream_destroy_duplex(struct snd_motu *motu);
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int snd_motu_stream_cache_packet_formats(struct snd_motu *motu);
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int snd_motu_stream_reserve_duplex(struct snd_motu *motu, 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_motu_stream_start_duplex(struct snd_motu *motu);
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void snd_motu_stream_stop_duplex(struct snd_motu *motu);
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int snd_motu_stream_lock_try(struct snd_motu *motu);
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void snd_motu_stream_lock_release(struct snd_motu *motu);
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void snd_motu_proc_init(struct snd_motu *motu);
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int snd_motu_create_pcm_devices(struct snd_motu *motu);
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int snd_motu_create_midi_devices(struct snd_motu *motu);
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int snd_motu_create_hwdep_device(struct snd_motu *motu);
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int snd_motu_protocol_v1_get_clock_rate(struct snd_motu *motu,
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unsigned int *rate);
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int snd_motu_protocol_v1_set_clock_rate(struct snd_motu *motu,
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unsigned int rate);
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int snd_motu_protocol_v1_get_clock_source(struct snd_motu *motu,
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enum snd_motu_clock_source *src);
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int snd_motu_protocol_v1_switch_fetching_mode(struct snd_motu *motu,
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bool enable);
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int snd_motu_protocol_v1_cache_packet_formats(struct snd_motu *motu);
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int snd_motu_protocol_v2_get_clock_rate(struct snd_motu *motu,
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unsigned int *rate);
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int snd_motu_protocol_v2_set_clock_rate(struct snd_motu *motu,
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unsigned int rate);
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int snd_motu_protocol_v2_get_clock_source(struct snd_motu *motu,
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enum snd_motu_clock_source *src);
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int snd_motu_protocol_v2_switch_fetching_mode(struct snd_motu *motu,
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bool enable);
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int snd_motu_protocol_v2_cache_packet_formats(struct snd_motu *motu);
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int snd_motu_protocol_v3_get_clock_rate(struct snd_motu *motu,
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unsigned int *rate);
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int snd_motu_protocol_v3_set_clock_rate(struct snd_motu *motu,
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unsigned int rate);
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int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
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enum snd_motu_clock_source *src);
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int snd_motu_protocol_v3_switch_fetching_mode(struct snd_motu *motu,
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bool enable);
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int snd_motu_protocol_v3_cache_packet_formats(struct snd_motu *motu);
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static inline int snd_motu_protocol_get_clock_rate(struct snd_motu *motu,
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unsigned int *rate)
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{
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if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V2)
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return snd_motu_protocol_v2_get_clock_rate(motu, rate);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V3)
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return snd_motu_protocol_v3_get_clock_rate(motu, rate);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V1)
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return snd_motu_protocol_v1_get_clock_rate(motu, rate);
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else
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return -ENXIO;
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}
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static inline int snd_motu_protocol_set_clock_rate(struct snd_motu *motu,
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unsigned int rate)
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{
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if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V2)
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return snd_motu_protocol_v2_set_clock_rate(motu, rate);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V3)
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return snd_motu_protocol_v3_set_clock_rate(motu, rate);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V1)
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return snd_motu_protocol_v1_set_clock_rate(motu, rate);
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else
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return -ENXIO;
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}
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static inline int snd_motu_protocol_get_clock_source(struct snd_motu *motu,
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enum snd_motu_clock_source *source)
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{
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if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V2)
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return snd_motu_protocol_v2_get_clock_source(motu, source);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V3)
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return snd_motu_protocol_v3_get_clock_source(motu, source);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V1)
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return snd_motu_protocol_v1_get_clock_source(motu, source);
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else
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return -ENXIO;
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}
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static inline int snd_motu_protocol_switch_fetching_mode(struct snd_motu *motu,
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bool enable)
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{
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if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V2)
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return snd_motu_protocol_v2_switch_fetching_mode(motu, enable);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V3)
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return snd_motu_protocol_v3_switch_fetching_mode(motu, enable);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V1)
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return snd_motu_protocol_v1_switch_fetching_mode(motu, enable);
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else
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return -ENXIO;
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}
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static inline int snd_motu_protocol_cache_packet_formats(struct snd_motu *motu)
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{
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if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V2)
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return snd_motu_protocol_v2_cache_packet_formats(motu);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V3)
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return snd_motu_protocol_v3_cache_packet_formats(motu);
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else if (motu->spec->protocol_version == SND_MOTU_PROTOCOL_V1)
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return snd_motu_protocol_v1_cache_packet_formats(motu);
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else
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return -ENXIO;
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}
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#endif
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