949613e366
MOTU 828mk2 is one of second generation in MOTU FireWire series, produced in 2003. This model consists of four chips: * TI TSB41AB2 (Physical layer for IEEE 1394 bus) * PDI 1394L40BE (Link layer for IEEE 1394 bus and packet processing layer) * ALTERA ACEX 1K EP1K30 Series FPGA (Data block processing layer) * TI TMS320VC5402 (Digital signal processing) This commit adds a support for this model, with its unique protocol as version 2. The features of this protocol are: * Support data chunks for status and control messages for both directions. * Support a pair of MIDI input/output. * Support a data chunk for mic/instrument independent of analog line in. * Support a data chunk for playback return. * Support independent data chunks for S/PDIF of both optical/coaxial interfaces. * Support independent data chunks for each of main out and phone out. Status of clock is configured by write transactions to 0x'ffff'f000'0b14. Modes of optical interfaces are configured by write transactions to 0x'ffff'f000'0c04. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
161 lines
4.8 KiB
C
161 lines
4.8 KiB
C
/*
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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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* Licensed under the terms of the GNU General Public License, version 2.
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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 capture_substreams;
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unsigned int playback_substreams;
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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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};
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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_TX_AESEBU_CHUNK = 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_HAS_MIDI = 0x0100,
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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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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_start_duplex(struct snd_motu *motu, unsigned int rate);
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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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