2e76701bbb
All models of MOTU FireWire series can be controlled by write transaction to addresses in a range from 0x'ffff'f0000'0b00 to 0x'ffff'f000'0cff. The models support asynchronous notification. This notification has 32 bit field data, and is transferred when status of clock changes. Meaning of the value is not enough clear yet. Drivers can register its address to receive the notification. Write transaction to 0x'ffff'f000'0b04 registers higher 16 bits of the address. Write transaction to 0x'ffff'f0000'0b08 registers the rest of bits. The address includes node ID, thus it should be registered every time of bus reset. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/*
|
|
* motu.h - a part of driver for MOTU FireWire series
|
|
*
|
|
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
|
|
*
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
|
*/
|
|
|
|
#ifndef SOUND_FIREWIRE_MOTU_H_INCLUDED
|
|
#define SOUND_FIREWIRE_MOTU_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 <sound/control.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
|
|
#include "../lib.h"
|
|
#include "../amdtp-stream.h"
|
|
|
|
struct snd_motu_packet_format {
|
|
unsigned char pcm_byte_offset;
|
|
|
|
unsigned char msg_chunks;
|
|
unsigned char fixed_part_pcm_chunks[3];
|
|
unsigned char differed_part_pcm_chunks[3];
|
|
};
|
|
|
|
struct snd_motu {
|
|
struct snd_card *card;
|
|
struct fw_unit *unit;
|
|
struct mutex mutex;
|
|
|
|
bool registered;
|
|
struct delayed_work dwork;
|
|
|
|
/* Model dependent information. */
|
|
const struct snd_motu_spec *spec;
|
|
|
|
/* For packet streaming */
|
|
struct snd_motu_packet_format tx_packet_formats;
|
|
struct snd_motu_packet_format rx_packet_formats;
|
|
struct amdtp_stream tx_stream;
|
|
struct amdtp_stream rx_stream;
|
|
|
|
/* For notification. */
|
|
struct fw_address_handler async_handler;
|
|
u32 msg;
|
|
};
|
|
|
|
enum snd_motu_spec_flags {
|
|
SND_MOTU_SPEC_SUPPORT_CLOCK_X2 = 0x0001,
|
|
SND_MOTU_SPEC_SUPPORT_CLOCK_X4 = 0x0002,
|
|
SND_MOTU_SPEC_TX_MICINST_CHUNK = 0x0004,
|
|
SND_MOTU_SPEC_TX_RETURN_CHUNK = 0x0008,
|
|
SND_MOTU_SPEC_TX_REVERB_CHUNK = 0x0010,
|
|
SND_MOTU_SPEC_TX_AESEBU_CHUNK = 0x0020,
|
|
SND_MOTU_SPEC_HAS_OPT_IFACE_A = 0x0040,
|
|
SND_MOTU_SPEC_HAS_OPT_IFACE_B = 0x0080,
|
|
SND_MOTU_SPEC_HAS_MIDI = 0x0100,
|
|
};
|
|
|
|
#define SND_MOTU_CLOCK_RATE_COUNT 6
|
|
extern const unsigned int snd_motu_clock_rates[SND_MOTU_CLOCK_RATE_COUNT];
|
|
|
|
enum snd_motu_clock_source {
|
|
SND_MOTU_CLOCK_SOURCE_INTERNAL,
|
|
SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB,
|
|
SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT,
|
|
SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A,
|
|
SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B,
|
|
SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT,
|
|
SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A,
|
|
SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B,
|
|
SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX,
|
|
SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR,
|
|
SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC,
|
|
SND_MOTU_CLOCK_SOURCE_UNKNOWN,
|
|
};
|
|
|
|
struct snd_motu_protocol {
|
|
int (*get_clock_rate)(struct snd_motu *motu, unsigned int *rate);
|
|
int (*set_clock_rate)(struct snd_motu *motu, unsigned int rate);
|
|
int (*get_clock_source)(struct snd_motu *motu,
|
|
enum snd_motu_clock_source *source);
|
|
int (*switch_fetching_mode)(struct snd_motu *motu, bool enable);
|
|
int (*cache_packet_formats)(struct snd_motu *motu);
|
|
};
|
|
|
|
struct snd_motu_spec {
|
|
const char *const name;
|
|
enum snd_motu_spec_flags flags;
|
|
|
|
unsigned char analog_in_ports;
|
|
unsigned char analog_out_ports;
|
|
|
|
const struct snd_motu_protocol *const protocol;
|
|
};
|
|
|
|
int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
|
|
enum amdtp_stream_direction dir,
|
|
const struct snd_motu_protocol *const protocol);
|
|
int amdtp_motu_set_parameters(struct amdtp_stream *s, unsigned int rate,
|
|
struct snd_motu_packet_format *formats);
|
|
int amdtp_motu_add_pcm_hw_constraints(struct amdtp_stream *s,
|
|
struct snd_pcm_runtime *runtime);
|
|
|
|
int snd_motu_transaction_read(struct snd_motu *motu, u32 offset, __be32 *reg,
|
|
size_t size);
|
|
int snd_motu_transaction_write(struct snd_motu *motu, u32 offset, __be32 *reg,
|
|
size_t size);
|
|
int snd_motu_transaction_register(struct snd_motu *motu);
|
|
int snd_motu_transaction_reregister(struct snd_motu *motu);
|
|
void snd_motu_transaction_unregister(struct snd_motu *motu);
|
|
#endif
|