171 lines
5.2 KiB
C
171 lines
5.2 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 fixed_part_pcm_chunks[3];
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unsigned char differed_part_pcm_chunks[3];
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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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bool registered;
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struct delayed_work dwork;
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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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};
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enum snd_motu_spec_flags {
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SND_MOTU_SPEC_SUPPORT_CLOCK_X2 = 0x0001,
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SND_MOTU_SPEC_SUPPORT_CLOCK_X4 = 0x0002,
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SND_MOTU_SPEC_TX_MICINST_CHUNK = 0x0004,
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SND_MOTU_SPEC_TX_RETURN_CHUNK = 0x0008,
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SND_MOTU_SPEC_TX_REVERB_CHUNK = 0x0010,
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SND_MOTU_SPEC_HAS_AESEBU_IFACE = 0x0020,
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SND_MOTU_SPEC_HAS_OPT_IFACE_A = 0x0040,
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SND_MOTU_SPEC_HAS_OPT_IFACE_B = 0x0080,
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SND_MOTU_SPEC_RX_MIDI_2ND_Q = 0x0100,
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SND_MOTU_SPEC_RX_MIDI_3RD_Q = 0x0200,
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SND_MOTU_SPEC_TX_MIDI_2ND_Q = 0x0400,
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SND_MOTU_SPEC_TX_MIDI_3RD_Q = 0x0800,
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SND_MOTU_SPEC_RX_SEPARETED_MAIN = 0x1000,
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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_UNKNOWN,
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};
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struct snd_motu_protocol {
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int (*get_clock_rate)(struct snd_motu *motu, unsigned int *rate);
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int (*set_clock_rate)(struct snd_motu *motu, unsigned int rate);
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int (*get_clock_source)(struct snd_motu *motu,
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enum snd_motu_clock_source *source);
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int (*switch_fetching_mode)(struct snd_motu *motu, bool enable);
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int (*cache_packet_formats)(struct snd_motu *motu);
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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_spec_flags flags;
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unsigned char analog_in_ports;
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unsigned char analog_out_ports;
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const struct snd_motu_protocol *const protocol;
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};
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extern const struct snd_motu_protocol snd_motu_protocol_v2;
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extern const struct snd_motu_protocol snd_motu_protocol_v3;
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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_8pre;
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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_protocol *const protocol);
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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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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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#endif
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