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/*
* bebob_maudio.c - 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.
*/
#include "./bebob.h"
/*
* Just powering on, Firewire 410/Audiophile wait to
* download firmware blob. To enable these devices, drivers should upload
* firmware blob and send a command to initialize configuration to factory
* settings when completing uploading. Then these devices generate bus reset
* and are recognized as new devices with the firmware.
*
* For streaming, both of output and input streams are needed for Firewire 410
* and Ozonic. The single stream is OK for the other devices even if the clock
* source is not SYT-Match (I note no devices use SYT-Match).
*
* Without streaming, the devices except for Firewire Audiophile can mix any
* input and output. For this reason, Audiophile cannot be used as standalone
* mixer.
*/
#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000
#define METER_OFFSET 0x00600000
/* some device has sync info after metering data */
#define METER_SIZE_FW410 76 /* with sync info */
#define METER_SIZE_AUDIOPHILE 60 /* with sync info */
#define METER_SIZE_SOLO 52 /* with sync info */
#define METER_SIZE_OZONIC 48
#define METER_SIZE_NRV10 80
/* labels for metering */
#define ANA_IN "Analog In"
#define ANA_OUT "Analog Out"
#define DIG_IN "Digital In"
#define SPDIF_IN "S/PDIF In"
#define ADAT_IN "ADAT In"
#define DIG_OUT "Digital Out"
#define SPDIF_OUT "S/PDIF Out"
#define ADAT_OUT "ADAT Out"
#define STRM_IN "Stream In"
#define AUX_OUT "Aux Out"
#define HP_OUT "HP Out"
/* for NRV */
#define UNKNOWN_METER "Unknown"
static inline int
get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
{
return snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST,
MAUDIO_SPECIFIC_ADDRESS + METER_OFFSET,
buf, size, 0);
}
/* last 4 bytes are omitted because it's clock info. */
static char *const fw410_meter_labels[] = {
ANA_IN, DIG_IN,
ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT,
HP_OUT
};
static char *const audiophile_meter_labels[] = {
ANA_IN, DIG_IN,
ANA_OUT, ANA_OUT, DIG_OUT,
HP_OUT, AUX_OUT,
};
static char *const solo_meter_labels[] = {
ANA_IN, DIG_IN,
STRM_IN, STRM_IN,
ANA_OUT, DIG_OUT
};
/* no clock info */
static char *const ozonic_meter_labels[] = {
ANA_IN, ANA_IN,
STRM_IN, STRM_IN,
ANA_OUT, ANA_OUT
};
/* TODO: need testers. these positions are based on authour's assumption */
static char *const nrv10_meter_labels[] = {
ANA_IN, ANA_IN, ANA_IN, ANA_IN,
DIG_IN,
ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT,
DIG_IN
};
static int
normal_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
{
struct snd_bebob_meter_spec *spec = bebob->spec->meter;
unsigned int c, channels;
int err;
channels = spec->num * 2;
if (size < channels * sizeof(u32))
return -EINVAL;
err = get_meter(bebob, (void *)buf, size);
if (err < 0)
goto end;
for (c = 0; c < channels; c++)
be32_to_cpus(&buf[c]);
/* swap stream channels because inverted */
if (spec->labels == solo_meter_labels) {
swap(buf[4], buf[6]);
swap(buf[5], buf[7]);
}
end:
return err;
}
/* Firewire 410 specification */
static struct snd_bebob_rate_spec usual_rate_spec = {
.get = &snd_bebob_stream_get_rate,
.set = &snd_bebob_stream_set_rate,
};
static struct snd_bebob_meter_spec fw410_meter_spec = {
.num = ARRAY_SIZE(fw410_meter_labels),
.labels = fw410_meter_labels,
.get = &normal_meter_get
};
struct snd_bebob_spec maudio_fw410_spec = {
.clock = NULL,
.rate = &usual_rate_spec,
.meter = &fw410_meter_spec
};
/* Firewire Audiophile specification */
static struct snd_bebob_meter_spec audiophile_meter_spec = {
.num = ARRAY_SIZE(audiophile_meter_labels),
.labels = audiophile_meter_labels,
.get = &normal_meter_get
};
struct snd_bebob_spec maudio_audiophile_spec = {
.clock = NULL,
.rate = &usual_rate_spec,
.meter = &audiophile_meter_spec
};
/* Firewire Solo specification */
static struct snd_bebob_meter_spec solo_meter_spec = {
.num = ARRAY_SIZE(solo_meter_labels),
.labels = solo_meter_labels,
.get = &normal_meter_get
};
struct snd_bebob_spec maudio_solo_spec = {
.clock = NULL,
.rate = &usual_rate_spec,
.meter = &solo_meter_spec
};
/* Ozonic specification */
static struct snd_bebob_meter_spec ozonic_meter_spec = {
.num = ARRAY_SIZE(ozonic_meter_labels),
.labels = ozonic_meter_labels,
.get = &normal_meter_get
};
struct snd_bebob_spec maudio_ozonic_spec = {
.clock = NULL,
.rate = &usual_rate_spec,
.meter = &ozonic_meter_spec
};
/* NRV10 specification */
static struct snd_bebob_meter_spec nrv10_meter_spec = {
.num = ARRAY_SIZE(nrv10_meter_labels),
.labels = nrv10_meter_labels,
.get = &normal_meter_get
};
struct snd_bebob_spec maudio_nrv10_spec = {
.clock = NULL,
.rate = &usual_rate_spec,
.meter = &nrv10_meter_spec
};
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