1 files changed, 46 insertions, 0 deletions

diff --git a/sound/firewire/dice/dice-mytek.c b/sound/firewire/dice/dice-mytek.c
new file mode 100644
index 000000000000..eb7d5492d10b
--- /dev/null
+++ b/sound/firewire/dice/dice-mytek.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dice-mytek.c - a part of driver for DICE based devices
+ *
+ * Copyright (c) 2018 Melvin Vermeeren
+ */
+
+#include "dice.h"
+
+struct dice_mytek_spec {
+        unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
+        unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
+};
+
+static const struct dice_mytek_spec stereo_192_dsd_dac = {
+        /* AES, TOSLINK, SPDIF, ADAT inputs on device */
+        .tx_pcm_chs = {{8, 8, 8}, {0, 0, 0} },
+        /* PCM 44.1-192, native DSD64/DSD128 to device */
+        .rx_pcm_chs = {{4, 4, 4}, {0, 0, 0} }
+};
+
+/*
+ * Mytek has a few other firewire-capable devices, though newer models appear
+ * to lack the port more often than not. As I don't have access to any of them
+ * they are missing here. An example is the Mytek 8x192 ADDA, which is DICE.
+ */
+
+int snd_dice_detect_mytek_formats(struct snd_dice *dice)
+{
+        int i;
+        const struct dice_mytek_spec *dev;
+
+        dev = &stereo_192_dsd_dac;
+
+        memcpy(dice->tx_pcm_chs, dev->tx_pcm_chs,
+               MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
+        memcpy(dice->rx_pcm_chs, dev->rx_pcm_chs,
+               MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
+
+        for (i = 0; i < MAX_STREAMS; ++i) {
+                dice->tx_midi_ports[i] = 0;
+                dice->rx_midi_ports[i] = 0;
+        }
+
+        return 0;
+}