forked from Minki/linux
531f471834
In Linux kernel 4.4, firewire-lib got a feature called as 'async midi port' for transmission of MIDI message via IEEE 1394 asynchronous communication, however actual consumer of this feature is ALSA driver for TASCAM FireWire series only. When adding this feature, I assumed that ALSA driver for Digi00x might also be a consumer, actually it's not. This commit moves the feature from firewire-lib to firewire-tascam module. Two minor kernel APIs are removed. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
192 lines
5.3 KiB
C
192 lines
5.3 KiB
C
/*
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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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* Licensed under the terms of the GNU General Public License, version 2.
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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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typedef int (*snd_fw_async_midi_port_fill)(
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struct snd_rawmidi_substream *substream,
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u8 *buf);
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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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u64 addr;
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struct fw_transaction transaction;
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u8 *buf;
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unsigned int len;
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struct snd_rawmidi_substream *substream;
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snd_fw_async_midi_port_fill fill;
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int consume_bytes;
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};
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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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bool registered;
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struct delayed_work dwork;
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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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u8 running_status[TSCM_MIDI_OUT_PORT_MAX];
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bool on_sysex[TSCM_MIDI_OUT_PORT_MAX];
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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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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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void amdtp_tscm_set_pcm_format(struct amdtp_stream *s, snd_pcm_format_t format);
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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_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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int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
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struct fw_unit *unit, u64 addr, unsigned int len,
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snd_fw_async_midi_port_fill fill);
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void snd_fw_async_midi_port_destroy(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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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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