diff options
Diffstat (limited to 'sound/firewire/tascam/tascam.h')
| -rw-r--r-- | sound/firewire/tascam/tascam.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h new file mode 100644 index 000000000..78b7a0898 --- /dev/null +++ b/sound/firewire/tascam/tascam.h @@ -0,0 +1,213 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tascam.h - a part of driver for TASCAM FireWire series + * + * Copyright (c) 2015 Takashi Sakamoto + */ + +#ifndef SOUND_TASCAM_H_INCLUDED +#define SOUND_TASCAM_H_INCLUDED + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/compat.h> +#include <linux/sched/signal.h> + +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/info.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> +#include <sound/rawmidi.h> + +#include "../lib.h" +#include "../amdtp-stream.h" +#include "../iso-resources.h" + +struct snd_tscm_spec { + const char *const name; + bool has_adat; + bool has_spdif; + unsigned int pcm_capture_analog_channels; + unsigned int pcm_playback_analog_channels; + unsigned int midi_capture_ports; + unsigned int midi_playback_ports; +}; + +#define TSCM_MIDI_IN_PORT_MAX 4 +#define TSCM_MIDI_OUT_PORT_MAX 4 + +struct snd_fw_async_midi_port { + struct fw_device *parent; + struct work_struct work; + bool idling; + ktime_t next_ktime; + bool error; + + struct fw_transaction transaction; + + u8 buf[4]; + u8 running_status; + bool on_sysex; + + struct snd_rawmidi_substream *substream; + int consume_bytes; +}; + +#define SND_TSCM_QUEUE_COUNT 16 + +struct snd_tscm { + struct snd_card *card; + struct fw_unit *unit; + + struct mutex mutex; + spinlock_t lock; + + bool registered; + struct delayed_work dwork; + const struct snd_tscm_spec *spec; + + struct fw_iso_resources tx_resources; + struct fw_iso_resources rx_resources; + struct amdtp_stream tx_stream; + struct amdtp_stream rx_stream; + unsigned int substreams_counter; + + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; + + /* For MIDI message incoming transactions. */ + struct fw_address_handler async_handler; + struct snd_rawmidi_substream *tx_midi_substreams[TSCM_MIDI_IN_PORT_MAX]; + + /* For MIDI message outgoing transactions. */ + struct snd_fw_async_midi_port out_ports[TSCM_MIDI_OUT_PORT_MAX]; + + // A cache of status information in tx isoc packets. + __be32 state[SNDRV_FIREWIRE_TASCAM_STATE_COUNT]; + struct snd_hwdep *hwdep; + struct snd_firewire_tascam_change queue[SND_TSCM_QUEUE_COUNT]; + unsigned int pull_pos; + unsigned int push_pos; + + struct amdtp_domain domain; +}; + +#define TSCM_ADDR_BASE 0xffff00000000ull + +#define TSCM_OFFSET_FIRMWARE_REGISTER 0x0000 +#define TSCM_OFFSET_FIRMWARE_FPGA 0x0004 +#define TSCM_OFFSET_FIRMWARE_ARM 0x0008 +#define TSCM_OFFSET_FIRMWARE_HW 0x000c + +#define TSCM_OFFSET_ISOC_TX_CH 0x0200 +#define TSCM_OFFSET_UNKNOWN 0x0204 +#define TSCM_OFFSET_START_STREAMING 0x0208 +#define TSCM_OFFSET_ISOC_RX_CH 0x020c +#define TSCM_OFFSET_ISOC_RX_ON 0x0210 /* Little conviction. */ +#define TSCM_OFFSET_TX_PCM_CHANNELS 0x0214 +#define TSCM_OFFSET_RX_PCM_CHANNELS 0x0218 +#define TSCM_OFFSET_MULTIPLEX_MODE 0x021c +#define TSCM_OFFSET_ISOC_TX_ON 0x0220 +/* Unknown 0x0224 */ +#define TSCM_OFFSET_CLOCK_STATUS 0x0228 +#define TSCM_OFFSET_SET_OPTION 0x022c + +#define TSCM_OFFSET_MIDI_TX_ON 0x0300 +#define TSCM_OFFSET_MIDI_TX_ADDR_HI 0x0304 +#define TSCM_OFFSET_MIDI_TX_ADDR_LO 0x0308 + +#define TSCM_OFFSET_LED_POWER 0x0404 + +#define TSCM_OFFSET_MIDI_RX_QUAD 0x4000 + +// Although FE-8 supports the above registers, it has no I/O interfaces for +// audio samples and music messages. Otherwise it supports another notification +// for status and control message as well as LED brightening. The message +// consists of quadlet-aligned data up to 32 quadlets. The first byte of message +// is fixed to 0x40. The second byte is between 0x00 to 0x1f and represent each +// control: +// fader: 0x00-0x07 +// button: 0x0d, 0x0e +// knob: 0x14-0x1b +// sensing: 0x0b +// +// The rest two bytes represent state of the controls; e.g. current value for +// fader and knob, bitmasks for button and sensing. +// Just after turning on, 32 quadlets messages with 0x00-0x1f are immediately +// sent in one transaction. After, several quadlets are sent in one transaction. +// +// TSCM_OFFSET_FE8_CTL_TX_ON 0x0310 +// TSCM_OFFSET_FE8_CTL_TX_ADDR_HI 0x0314 +// TSCM_OFFSET_FE8_CTL_TX_ADDR_LO 0x0318 + +enum snd_tscm_clock { + SND_TSCM_CLOCK_INTERNAL = 0, + SND_TSCM_CLOCK_WORD = 1, + SND_TSCM_CLOCK_SPDIF = 2, + SND_TSCM_CLOCK_ADAT = 3, +}; + +int amdtp_tscm_init(struct amdtp_stream *s, struct fw_unit *unit, + enum amdtp_stream_direction dir, unsigned int pcm_channels); +int amdtp_tscm_set_parameters(struct amdtp_stream *s, unsigned int rate); +int amdtp_tscm_add_pcm_hw_constraints(struct amdtp_stream *s, + struct snd_pcm_runtime *runtime); + +int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate); +int snd_tscm_stream_get_clock(struct snd_tscm *tscm, + enum snd_tscm_clock *clock); +int snd_tscm_stream_init_duplex(struct snd_tscm *tscm); +void snd_tscm_stream_update_duplex(struct snd_tscm *tscm); +void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm); +int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate, + unsigned int frames_per_period, + unsigned int frames_per_buffer); +int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate); +void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm); + +void snd_tscm_stream_lock_changed(struct snd_tscm *tscm); +int snd_tscm_stream_lock_try(struct snd_tscm *tscm); +void snd_tscm_stream_lock_release(struct snd_tscm *tscm); + +void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port); + +static inline void +snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port, + struct snd_rawmidi_substream *substream) +{ + if (!port->error) { + port->substream = substream; + schedule_work(&port->work); + } +} + +static inline void +snd_fw_async_midi_port_finish(struct snd_fw_async_midi_port *port) +{ + port->substream = NULL; + cancel_work_sync(&port->work); + port->error = false; +} + +int snd_tscm_transaction_register(struct snd_tscm *tscm); +int snd_tscm_transaction_reregister(struct snd_tscm *tscm); +void snd_tscm_transaction_unregister(struct snd_tscm *tscm); + +void snd_tscm_proc_init(struct snd_tscm *tscm); + +int snd_tscm_create_pcm_devices(struct snd_tscm *tscm); + +int snd_tscm_create_midi_devices(struct snd_tscm *tscm); + +int snd_tscm_create_hwdep_device(struct snd_tscm *tscm); + +#endif |