ALSA: bebob: Add support for Terratec PHASE, EWS series and Aureon

This commit allows this driver to support all of models which Terratec produced
with DM1000/BeBoB. They are:
 - PHASE 24 FW
 - PHASE X24 FW
 - PHASE 88 Rack FW
 - EWS MIC2
 - EWS MIC4
 - Aureon 7.1 Firewire

For Phase series, this commit adds a Terratec specific operation. To get source
of clock. AV/C Audio Subunit command is used.

For EWS series and Aureon, this module uses normal operations.

Tested-by: Maximilian Engelhardt <maxi@daemonizer.de> (PHASE 24 FW)
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 68 insertions, 0 deletions

diff --git a/sound/firewire/bebob/bebob_terratec.c b/sound/firewire/bebob/bebob_terratec.c
new file mode 100644
index 000000000000..2a89c1cd9b15
--- /dev/null
+++ b/sound/firewire/bebob/bebob_terratec.c
@@ -0,0 +1,68 @@
+/*
+ * bebob_terratec.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"
+
+static char *const phase88_rack_clk_src_labels[] = {
+	SND_BEBOB_CLOCK_INTERNAL, "Digital In", "Word Clock"
+};
+static int
+phase88_rack_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+	unsigned int enable_ext, enable_word;
+	int err;
+
+	err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_ext);
+	if (err < 0)
+		goto end;
+	err = avc_audio_get_selector(bebob->unit, 0, 0, &enable_word);
+	if (err < 0)
+		goto end;
+
+	*id = (enable_ext & 0x01) | ((enable_word & 0x01) << 1);
+end:
+	return err;
+}
+
+static char *const phase24_series_clk_src_labels[] = {
+	SND_BEBOB_CLOCK_INTERNAL, "Digital In"
+};
+static int
+phase24_series_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
+{
+	return avc_audio_get_selector(bebob->unit, 0, 4, id);
+}
+
+struct snd_bebob_rate_spec phase_series_rate_spec = {
+	.get	= &snd_bebob_stream_get_rate,
+	.set	= &snd_bebob_stream_set_rate,
+};
+
+/* PHASE 88 Rack FW */
+struct snd_bebob_clock_spec phase88_rack_clk = {
+	.num	= ARRAY_SIZE(phase88_rack_clk_src_labels),
+	.labels	= phase88_rack_clk_src_labels,
+	.get	= &phase88_rack_clk_src_get,
+};
+struct snd_bebob_spec phase88_rack_spec = {
+	.clock	= &phase88_rack_clk,
+	.rate	= &phase_series_rate_spec,
+	.meter	= NULL
+};
+
+/* 'PHASE 24 FW' and 'PHASE X24 FW' */
+struct snd_bebob_clock_spec phase24_series_clk = {
+	.num	= ARRAY_SIZE(phase24_series_clk_src_labels),
+	.labels	= phase24_series_clk_src_labels,
+	.get	= &phase24_series_clk_src_get,
+};
+struct snd_bebob_spec phase24_series_spec = {
+	.clock	= &phase24_series_clk,
+	.rate	= &phase_series_rate_spec,
+	.meter	= NULL
+};