cregit-Linux how code gets into the kernel

Release 4.7 sound/firewire/tascam/tascam.h

/*
 * tascam.h - a part of driver for TASCAM FireWire series
 *
 * Copyright (c) 2015 Takashi Sakamoto
 *
 * Licensed under the terms of the GNU General Public License, version 2.
 */

#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 <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_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];
	
u8 running_status[TSCM_MIDI_OUT_PORT_MAX];
	
bool on_sysex[TSCM_MIDI_OUT_PORT_MAX];
};


#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


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);
void amdtp_tscm_set_pcm_format(struct amdtp_stream *s, snd_pcm_format_t format);

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_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);

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

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takashi sakamototakashi sakamoto538100.00%12100.00%
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