1 files changed, 106 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/emu10k1_synth.c b/sound/pci/emu10k1/emu10k1_synth.c
new file mode 100644
index 000000000..549013a4a
--- /dev/null
+++ b/sound/pci/emu10k1/emu10k1_synth.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
+ *
+ *  Routines for control of EMU10K1 WaveTable synth
+ */
+
+#include "emu10k1_synth_local.h"
+#include <linux/init.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Takashi Iwai");
+MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
+MODULE_LICENSE("GPL");
+
+/*
+ * create a new hardware dependent device for Emu10k1
+ */
+static int snd_emu10k1_synth_probe(struct device *_dev)
+{
+	struct snd_seq_device *dev = to_seq_dev(_dev);
+	struct snd_emux *emux;
+	struct snd_emu10k1 *hw;
+	struct snd_emu10k1_synth_arg *arg;
+	unsigned long flags;
+
+	arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
+	if (arg == NULL)
+		return -EINVAL;
+
+	if (arg->seq_ports <= 0)
+		return 0; /* nothing */
+	if (arg->max_voices < 1)
+		arg->max_voices = 1;
+	else if (arg->max_voices > 64)
+		arg->max_voices = 64;
+
+	if (snd_emux_new(&emux) < 0)
+		return -ENOMEM;
+
+	snd_emu10k1_ops_setup(emux);
+	hw = arg->hwptr;
+	emux->hw = hw;
+	emux->max_voices = arg->max_voices;
+	emux->num_ports = arg->seq_ports;
+	emux->pitch_shift = -501;
+	emux->memhdr = hw->memhdr;
+	/* maximum two ports */
+	emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
+	/* audigy has two external midis */
+	emux->midi_devidx = hw->audigy ? 2 : 1;
+	emux->linear_panning = 0;
+	emux->hwdep_idx = 2; /* FIXED */
+
+	if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
+		snd_emux_free(emux);
+		return -ENOMEM;
+	}
+
+	spin_lock_irqsave(&hw->voice_lock, flags);
+	hw->synth = emux;
+	hw->get_synth_voice = snd_emu10k1_synth_get_voice;
+	spin_unlock_irqrestore(&hw->voice_lock, flags);
+
+	dev->driver_data = emux;
+
+	return 0;
+}
+
+static int snd_emu10k1_synth_remove(struct device *_dev)
+{
+	struct snd_seq_device *dev = to_seq_dev(_dev);
+	struct snd_emux *emux;
+	struct snd_emu10k1 *hw;
+	unsigned long flags;
+
+	if (dev->driver_data == NULL)
+		return 0; /* not registered actually */
+
+	emux = dev->driver_data;
+
+	hw = emux->hw;
+	spin_lock_irqsave(&hw->voice_lock, flags);
+	hw->synth = NULL;
+	hw->get_synth_voice = NULL;
+	spin_unlock_irqrestore(&hw->voice_lock, flags);
+
+	snd_emux_free(emux);
+	return 0;
+}
+
+/*
+ *  INIT part
+ */
+
+static struct snd_seq_driver emu10k1_synth_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_emu10k1_synth_probe,
+		.remove = snd_emu10k1_synth_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
+	.argsize = sizeof(struct snd_emu10k1_synth_arg),
+};
+
+module_snd_seq_driver(emu10k1_synth_driver);