Quelle  digi00x.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * digi00x.h - a part of driver for Digidesign Digi 002/003 family
 *
 * Copyright (c) 2014-2015 Takashi Sakamoto
 */

#ifndef SOUND_DIGI00X_H_INCLUDED
#define SOUND_DIGI00X_H_INCLUDED

#include <linux/compat.h>
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/delay.h>
#include <linux/slab.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 "../iso-resources.h"
#include "../amdtp-stream.h"

struct snd_dg00x {
 struct snd_card *card;
 struct fw_unit *unit;

 struct mutex mutex;
 spinlock_t lock;

 struct amdtp_stream tx_stream;
 struct fw_iso_resources tx_resources;

 struct amdtp_stream rx_stream;
 struct fw_iso_resources rx_resources;

 unsigned int substreams_counter;

 /* for uapi */
 int dev_lock_count;
 bool dev_lock_changed;
 wait_queue_head_t hwdep_wait;

 /* For asynchronous messages. */
 struct fw_address_handler async_handler;
 u32 msg;

 /* Console models have additional MIDI ports for control surface. */
 bool is_console;

 struct amdtp_domain domain;
};

#define DG00X_ADDR_BASE  0xffffe0000000ull

#define DG00X_OFFSET_STREAMING_STATE 0x0000
#define DG00X_OFFSET_STREAMING_SET 0x0004
/* unknown but address in host space 0x0008 */
/* For LSB of the address 0x000c */
/* unknown 0x0010 */
#define DG00X_OFFSET_MESSAGE_ADDR 0x0014
/* For LSB of the address 0x0018 */
/* unknown 0x001c */
/* unknown 0x0020 */
/* not used 0x0024--0x00ff */
#define DG00X_OFFSET_ISOC_CHANNELS 0x0100
/* unknown 0x0104 */
/* unknown 0x0108 */
/* unknown 0x010c */
#define DG00X_OFFSET_LOCAL_RATE  0x0110
#define DG00X_OFFSET_EXTERNAL_RATE 0x0114
#define DG00X_OFFSET_CLOCK_SOURCE 0x0118
#define DG00X_OFFSET_OPT_IFACE_MODE 0x011c
/* unknown 0x0120 */
/* Mixer control on/off 0x0124 */
/* unknown 0x0128 */
#define DG00X_OFFSET_DETECT_EXTERNAL 0x012c
/* unknown 0x0138 */
#define DG00X_OFFSET_MMC  0x0400

enum snd_dg00x_rate {
 SND_DG00X_RATE_44100 = 0,
 SND_DG00X_RATE_48000,
 SND_DG00X_RATE_88200,
 SND_DG00X_RATE_96000,
 SND_DG00X_RATE_COUNT,
};

enum snd_dg00x_clock {
 SND_DG00X_CLOCK_INTERNAL = 0,
 SND_DG00X_CLOCK_SPDIF,
 SND_DG00X_CLOCK_ADAT,
 SND_DG00X_CLOCK_WORD,
 SND_DG00X_CLOCK_COUNT,
};

enum snd_dg00x_optical_mode {
 SND_DG00X_OPT_IFACE_MODE_ADAT = 0,
 SND_DG00X_OPT_IFACE_MODE_SPDIF,
 SND_DG00X_OPT_IFACE_MODE_COUNT,
};

#define DOT_MIDI_IN_PORTS 1
#define DOT_MIDI_OUT_PORTS 2

int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,
     enum amdtp_stream_direction dir);
int amdtp_dot_set_parameters(struct amdtp_stream *s, unsigned int rate,
        unsigned int pcm_channels);
void amdtp_dot_reset(struct amdtp_stream *s);
int amdtp_dot_add_pcm_hw_constraints(struct amdtp_stream *s,
         struct snd_pcm_runtime *runtime);
void amdtp_dot_midi_trigger(struct amdtp_stream *s, unsigned int port,
     struct snd_rawmidi_substream *midi);

int snd_dg00x_transaction_register(struct snd_dg00x *dg00x);
int snd_dg00x_transaction_reregister(struct snd_dg00x *dg00x);
void snd_dg00x_transaction_unregister(struct snd_dg00x *dg00x);

extern const unsigned int snd_dg00x_stream_rates[SND_DG00X_RATE_COUNT];
extern const unsigned int snd_dg00x_stream_pcm_channels[SND_DG00X_RATE_COUNT];
int snd_dg00x_stream_get_external_rate(struct snd_dg00x *dg00x,
           unsigned int *rate);
int snd_dg00x_stream_get_local_rate(struct snd_dg00x *dg00x,
        unsigned int *rate);
int snd_dg00x_stream_set_local_rate(struct snd_dg00x *dg00x, unsigned int rate);
int snd_dg00x_stream_get_clock(struct snd_dg00x *dg00x,
          enum snd_dg00x_clock *clock);
int snd_dg00x_stream_check_external_clock(struct snd_dg00x *dg00x,
       bool *detect);
int snd_dg00x_stream_init_duplex(struct snd_dg00x *dg00x);
int snd_dg00x_stream_reserve_duplex(struct snd_dg00x *dg00x, unsigned int rate,
        unsigned int frames_per_period,
        unsigned int frames_per_buffer);
int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x);
void snd_dg00x_stream_stop_duplex(struct snd_dg00x *dg00x);
void snd_dg00x_stream_update_duplex(struct snd_dg00x *dg00x);
void snd_dg00x_stream_destroy_duplex(struct snd_dg00x *dg00x);

void snd_dg00x_stream_lock_changed(struct snd_dg00x *dg00x);
int snd_dg00x_stream_lock_try(struct snd_dg00x *dg00x);
void snd_dg00x_stream_lock_release(struct snd_dg00x *dg00x);

void snd_dg00x_proc_init(struct snd_dg00x *dg00x);

int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x);

int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x);

int snd_dg00x_create_hwdep_device(struct snd_dg00x *dg00x);
#endif