1 files changed, 148 insertions, 0 deletions
diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c
new file mode 100644
index 000000000..a870759d1
--- /dev/null
+++ b/sound/synth/emux/emux.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
+ *
+ *  Routines for control of EMU WaveTable chip
+ */
+
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <sound/core.h>
+#include <sound/emux_synth.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include "emux_voice.h"
+
+MODULE_AUTHOR("Takashi Iwai");
+MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
+MODULE_LICENSE("GPL");
+
+/*
+ * create a new hardware dependent device for Emu8000/Emu10k1
+ */
+int snd_emux_new(struct snd_emux **remu)
+{
+	struct snd_emux *emu;
+
+	*remu = NULL;
+	emu = kzalloc(sizeof(*emu), GFP_KERNEL);
+	if (emu == NULL)
+		return -ENOMEM;
+
+	spin_lock_init(&emu->voice_lock);
+	mutex_init(&emu->register_mutex);
+
+	emu->client = -1;
+#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
+	emu->oss_synth = NULL;
+#endif
+	emu->max_voices = 0;
+	emu->use_time = 0;
+
+	timer_setup(&emu->tlist, snd_emux_timer_callback, 0);
+	emu->timer_active = 0;
+
+	*remu = emu;
+	return 0;
+}
+
+EXPORT_SYMBOL(snd_emux_new);
+
+/*
+ */
+static int sf_sample_new(void *private_data, struct snd_sf_sample *sp,
+				  struct snd_util_memhdr *hdr,
+				  const void __user *buf, long count)
+{
+	struct snd_emux *emu = private_data;
+	return emu->ops.sample_new(emu, sp, hdr, buf, count);
+	
+}
+
+static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
+				   struct snd_util_memhdr *hdr)
+{
+	struct snd_emux *emu = private_data;
+	return emu->ops.sample_free(emu, sp, hdr);
+	
+}
+
+static void sf_sample_reset(void *private_data)
+{
+	struct snd_emux *emu = private_data;
+	emu->ops.sample_reset(emu);
+}
+
+int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
+{
+	int err;
+	struct snd_sf_callback sf_cb;
+
+	if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0))
+		return -EINVAL;
+	if (snd_BUG_ON(!card || !name))
+		return -EINVAL;
+
+	emu->card = card;
+	emu->name = kstrdup(name, GFP_KERNEL);
+	emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
+			      GFP_KERNEL);
+	if (emu->name == NULL || emu->voices == NULL)
+		return -ENOMEM;
+
+	/* create soundfont list */
+	memset(&sf_cb, 0, sizeof(sf_cb));
+	sf_cb.private_data = emu;
+	if (emu->ops.sample_new)
+		sf_cb.sample_new = sf_sample_new;
+	if (emu->ops.sample_free)
+		sf_cb.sample_free = sf_sample_free;
+	if (emu->ops.sample_reset)
+		sf_cb.sample_reset = sf_sample_reset;
+	emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
+	if (emu->sflist == NULL)
+		return -ENOMEM;
+
+	err = snd_emux_init_hwdep(emu);
+	if (err < 0)
+		return err;
+
+	snd_emux_init_voices(emu);
+
+	snd_emux_init_seq(emu, card, index);
+#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
+	snd_emux_init_seq_oss(emu);
+#endif
+	snd_emux_init_virmidi(emu, card);
+
+	snd_emux_proc_init(emu, card, index);
+	return 0;
+}
+
+EXPORT_SYMBOL(snd_emux_register);
+
+/*
+ */
+int snd_emux_free(struct snd_emux *emu)
+{
+	if (! emu)
+		return -EINVAL;
+
+	del_timer_sync(&emu->tlist);
+
+	snd_emux_proc_free(emu);
+	snd_emux_delete_virmidi(emu);
+#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
+	snd_emux_detach_seq_oss(emu);
+#endif
+	snd_emux_detach_seq(emu);
+	snd_emux_delete_hwdep(emu);
+	snd_sf_free(emu->sflist);
+	kfree(emu->voices);
+	kfree(emu->name);
+	kfree(emu);
+	return 0;
+}
+
+EXPORT_SYMBOL(snd_emux_free);