1 files changed, 180 insertions, 0 deletions
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
new file mode 100644
index 000000000000..dededb35fbd7
--- /dev/null
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -0,0 +1,180 @@
+/*
+ * 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
+};