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linux-hardened/sound/firewire/bebob/bebob.h
Takashi Sakamoto 9076c22ddd ALSA: bebob: Add support for M-Audio usual Firewire series 
This commit allows this driver to support some models which M-Audio produces
with DM1000/DM1000E with usual firmware. They are:
 - Firewire 410
 - Firewire AudioPhile
 - Firewire Solo
 - Ozonic
 - NRV10
 - FirewireLightBridge

According to a person who worked in BridgeCo, some models are produced with
'Pre-BeBoB'. This means that these products were released before BeBoB was
officially produced, and later BeBoB specification was formed. So these models
have some quirks.

M-Audio usual firmware quirks:
 - Just after powering on, 'Firewire 410' waits to download firmware. This
   state is changed when receiving cue. Then bus reset is generated and the
   device is recognized as a different model with the uploaded firmware.
 - 'Firewire Audiophile' also waits to download firmware but its
   vendor id/model id is the same as the one after loading firmware.
 - The information of channel mapping for MIDI conformant data channel is
   invalid against BridgeCo specification.

This commit adds some codes for these quirks but don't support to upload
firmware.

This commit also adds specific operations to get metering information. The
metering information also includes status of clock synchronization if the model
supports to switch source of clock.

The specification of FirewireLightBridge is unknown. So in this time, normal
operations are applied for this model.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-26 14:32:03 +02:00

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/*
* 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.h"
#include "../cmp.h"
/* basic register addresses on DM1000/DM1100/DM1500 */
#define BEBOB_ADDR_REG_INFO 0xffffc8020000
#define BEBOB_ADDR_REG_REQ 0xffffc8021000
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 */
#define SND_BEBOB_CLOCK_INTERNAL "Internal"
struct snd_bebob_clock_spec {
unsigned int num;
char *const *labels;
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;
char *const *labels;
int (*get)(struct snd_bebob *bebob, u32 *target, unsigned int size);
};
struct snd_bebob_spec {
struct snd_bebob_clock_spec *clock;
struct snd_bebob_rate_spec *rate;
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;
const struct snd_bebob_spec *spec;
unsigned int midi_input_ports;
unsigned int midi_output_ports;
/* for bus reset quirk */
struct completion bus_reset;
bool connected;
struct amdtp_stream *master;
struct amdtp_stream tx_stream;
struct amdtp_stream rx_stream;
struct cmp_connection out_conn;
struct cmp_connection in_conn;
atomic_t capture_substreams;
atomic_t playback_substreams;
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;
};
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);
}
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);
}
/* 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
};
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 */
}
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 */
}
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_check_internal_clock(struct snd_bebob *bebob,
bool *internal);
int snd_bebob_stream_discover(struct snd_bebob *bebob);
int snd_bebob_stream_map(struct snd_bebob *bebob,
struct amdtp_stream *stream);
int snd_bebob_stream_init_duplex(struct snd_bebob *bebob);
int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate);
void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_update_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 struct snd_bebob_spec phase88_rack_spec;
extern struct snd_bebob_spec phase24_series_spec;
extern struct snd_bebob_spec yamaha_go_spec;
extern struct snd_bebob_spec saffirepro_26_spec;
extern struct snd_bebob_spec saffirepro_10_spec;
extern struct snd_bebob_spec saffire_le_spec;
extern struct snd_bebob_spec saffire_spec;
extern struct snd_bebob_spec maudio_fw410_spec;
extern struct snd_bebob_spec maudio_audiophile_spec;
extern struct snd_bebob_spec maudio_solo_spec;
extern struct snd_bebob_spec maudio_ozonic_spec;
extern struct snd_bebob_spec maudio_nrv10_spec;
#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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