cregit-Linux how code gets into the kernel

Release 4.8 sound/firewire/bebob/bebob.h

/*
 * bebob.h - a part of driver for BeBoB based devices
 *
 * Copyright (c) 2013-2014 Takashi Sakamoto
 *
 * Licensed under the terms of the GNU General Public License, version 2.
 */

#ifndef SOUND_BEBOB_H_INCLUDED

#define SOUND_BEBOB_H_INCLUDED

#include <linux/compat.h>
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/firewire-constants.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/delay.h>
#include <linux/slab.h>

#include <sound/core.h>
#include <sound/initval.h>
#include <sound/info.h>
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/firewire.h>
#include <sound/hwdep.h>

#include "../lib.h"
#include "../fcp.h"
#include "../packets-buffer.h"
#include "../iso-resources.h"
#include "../amdtp-am824.h"
#include "../cmp.h"

/* basic register addresses on DM1000/DM1100/DM1500 */

#define BEBOB_ADDR_REG_INFO	0xffffc8020000ULL

#define BEBOB_ADDR_REG_REQ	0xffffc8021000ULL

struct snd_bebob;


#define SND_BEBOB_STRM_FMT_ENTRIES	7

struct snd_bebob_stream_formation {
	
unsigned int pcm;
	
unsigned int midi;
};
/* this is a lookup table for index of stream formations */
extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES];

/* device specific operations */

enum snd_bebob_clock_type {
	
SND_BEBOB_CLOCK_TYPE_INTERNAL = 0,
	
SND_BEBOB_CLOCK_TYPE_EXTERNAL,
	
SND_BEBOB_CLOCK_TYPE_SYT,
};

struct snd_bebob_clock_spec {
	
unsigned int num;
	
const char *const *labels;
	
enum snd_bebob_clock_type *types;
	
int (*get)(struct snd_bebob *bebob, unsigned int *id);
};

struct snd_bebob_rate_spec {
	
int (*get)(struct snd_bebob *bebob, unsigned int *rate);
	
int (*set)(struct snd_bebob *bebob, unsigned int rate);
};

struct snd_bebob_meter_spec {
	
unsigned int num;
	
const char *const *labels;
	
int (*get)(struct snd_bebob *bebob, u32 *target, unsigned int size);
};

struct snd_bebob_spec {
	
const struct snd_bebob_clock_spec *clock;
	
const struct snd_bebob_rate_spec *rate;
	
const struct snd_bebob_meter_spec *meter;
};


struct snd_bebob {
	
struct snd_card *card;
	
struct fw_unit *unit;
	
int card_index;

	
struct mutex mutex;
	
spinlock_t lock;

	
bool registered;
	
struct delayed_work dwork;

	
const struct ieee1394_device_id *entry;
	
const struct snd_bebob_spec *spec;

	
unsigned int midi_input_ports;
	
unsigned int midi_output_ports;

	
bool connected;

	
struct amdtp_stream tx_stream;
	
struct amdtp_stream rx_stream;
	
struct cmp_connection out_conn;
	
struct cmp_connection in_conn;
	
unsigned int substreams_counter;

	struct snd_bebob_stream_formation
		
tx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];
	struct snd_bebob_stream_formation
		
rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];

	
int sync_input_plug;

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

	/* for M-Audio special devices */
	
void *maudio_special_quirk;

	/* For BeBoB version quirk. */
	
unsigned int version;
};


static inline int snd_bebob_read_block(struct fw_unit *unit, u64 addr, void *buf, int size) { return snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, BEBOB_ADDR_REG_INFO + addr, buf, size, 0); }

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static inline int snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf) { return snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, BEBOB_ADDR_REG_INFO + addr, (void *)buf, sizeof(u32), 0); }

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/* AV/C Audio Subunit Specification 1.0 (Oct 2000, 1394TA) */ int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id, unsigned int fb_id, unsigned int num); int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id, unsigned int fb_id, unsigned int *num); /* * AVC command extensions, AV/C Unit and Subunit, Revision 17 * (Nov 2003, BridgeCo) */ #define AVC_BRIDGECO_ADDR_BYTES 6 enum avc_bridgeco_plug_dir { AVC_BRIDGECO_PLUG_DIR_IN = 0x00, AVC_BRIDGECO_PLUG_DIR_OUT = 0x01 }; enum avc_bridgeco_plug_mode { AVC_BRIDGECO_PLUG_MODE_UNIT = 0x00, AVC_BRIDGECO_PLUG_MODE_SUBUNIT = 0x01, AVC_BRIDGECO_PLUG_MODE_FUNCTION_BLOCK = 0x02 }; enum avc_bridgeco_plug_unit { AVC_BRIDGECO_PLUG_UNIT_ISOC = 0x00, AVC_BRIDGECO_PLUG_UNIT_EXT = 0x01, AVC_BRIDGECO_PLUG_UNIT_ASYNC = 0x02 }; enum avc_bridgeco_plug_type { AVC_BRIDGECO_PLUG_TYPE_ISOC = 0x00, AVC_BRIDGECO_PLUG_TYPE_ASYNC = 0x01, AVC_BRIDGECO_PLUG_TYPE_MIDI = 0x02, AVC_BRIDGECO_PLUG_TYPE_SYNC = 0x03, AVC_BRIDGECO_PLUG_TYPE_ANA = 0x04, AVC_BRIDGECO_PLUG_TYPE_DIG = 0x05, AVC_BRIDGECO_PLUG_TYPE_ADDITION = 0x06 };
static inline void avc_bridgeco_fill_unit_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES], enum avc_bridgeco_plug_dir dir, enum avc_bridgeco_plug_unit unit, unsigned int pid) { buf[0] = 0xff; /* Unit */ buf[1] = dir; buf[2] = AVC_BRIDGECO_PLUG_MODE_UNIT; buf[3] = unit; buf[4] = 0xff & pid; buf[5] = 0xff; /* reserved */ }

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static inline void avc_bridgeco_fill_msu_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES], enum avc_bridgeco_plug_dir dir, unsigned int pid) { buf[0] = 0x60; /* Music subunit */ buf[1] = dir; buf[2] = AVC_BRIDGECO_PLUG_MODE_SUBUNIT; buf[3] = 0xff & pid; buf[4] = 0xff; /* reserved */ buf[5] = 0xff; /* reserved */ }

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int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf, unsigned int len); int avc_bridgeco_get_plug_type(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], enum avc_bridgeco_plug_type *type); int avc_bridgeco_get_plug_section_type(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], unsigned int id, u8 *type); int avc_bridgeco_get_plug_input(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7]); int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf, unsigned int *len, unsigned int eid); /* for AMDTP streaming */ int snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *rate); int snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate); int snd_bebob_stream_get_clock_src(struct snd_bebob *bebob, enum snd_bebob_clock_type *src); int snd_bebob_stream_discover(struct snd_bebob *bebob); int snd_bebob_stream_init_duplex(struct snd_bebob *bebob); int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate); void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob); void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob); void snd_bebob_stream_lock_changed(struct snd_bebob *bebob); int snd_bebob_stream_lock_try(struct snd_bebob *bebob); void snd_bebob_stream_lock_release(struct snd_bebob *bebob); void snd_bebob_proc_init(struct snd_bebob *bebob); int snd_bebob_create_midi_devices(struct snd_bebob *bebob); int snd_bebob_create_pcm_devices(struct snd_bebob *bebob); int snd_bebob_create_hwdep_device(struct snd_bebob *bebob); /* model specific operations */ extern const struct snd_bebob_spec phase88_rack_spec; extern const struct snd_bebob_spec phase24_series_spec; extern const struct snd_bebob_spec yamaha_go_spec; extern const struct snd_bebob_spec saffirepro_26_spec; extern const struct snd_bebob_spec saffirepro_10_spec; extern const struct snd_bebob_spec saffire_le_spec; extern const struct snd_bebob_spec saffire_spec; extern const struct snd_bebob_spec maudio_fw410_spec; extern const struct snd_bebob_spec maudio_audiophile_spec; extern const struct snd_bebob_spec maudio_solo_spec; extern const struct snd_bebob_spec maudio_ozonic_spec; extern const struct snd_bebob_spec maudio_nrv10_spec; extern const struct snd_bebob_spec maudio_special_spec; int snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814); int snd_bebob_maudio_load_firmware(struct fw_unit *unit); #define SND_BEBOB_DEV_ENTRY(vendor, model, data) \ { \ .match_flags = IEEE1394_MATCH_VENDOR_ID | \ IEEE1394_MATCH_MODEL_ID, \ .vendor_id = vendor, \ .model_id = model, \ .driver_data = (kernel_ulong_t)data \ } #endif

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