1 files changed, 62 insertions, 0 deletions
diff --git a/sound/firewire/dice/dice-presonus.c b/sound/firewire/dice/dice-presonus.c
new file mode 100644
index 000000000000..503f462a83f4
--- /dev/null
+++ b/sound/firewire/dice/dice-presonus.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+// dice-presonus.c - a part of driver for DICE based devices
+//
+// Copyright (c) 2019 Takashi Sakamoto
+//
+// Licensed under the terms of the GNU General Public License, version 2.
+
+#include "dice.h"
+
+struct dice_presonus_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];
+	bool has_midi;
+};
+
+static const struct dice_presonus_spec dice_presonus_firesutio = {
+	.tx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
+	.rx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
+	.has_midi = true,
+};
+
+int snd_dice_detect_presonus_formats(struct snd_dice *dice)
+{
+	static const struct {
+		u32 model_id;
+		const struct dice_presonus_spec *spec;
+	} *entry, entries[] = {
+		{0x000008, &dice_presonus_firesutio},
+	};
+	struct fw_csr_iterator it;
+	int key, val, model_id;
+	int i;
+
+	model_id = 0;
+	fw_csr_iterator_init(&it, dice->unit->directory);
+	while (fw_csr_iterator_next(&it, &key, &val)) {
+		if (key == CSR_MODEL) {
+			model_id = val;
+			break;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(entries); ++i) {
+		entry = entries + i;
+		if (entry->model_id == model_id)
+			break;
+	}
+	if (i == ARRAY_SIZE(entries))
+		return -ENODEV;
+
+	memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
+	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
+	memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
+	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
+
+	if (entry->spec->has_midi) {
+		dice->tx_midi_ports[0] = 1;
+		dice->rx_midi_ports[0] = 1;
+	}
+
+	return 0;
+}