aboutsummaryrefslogtreecommitdiff
path: root/sound/synth/emux/emux.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/synth/emux/emux.c')
-rw-r--r--sound/synth/emux/emux.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c
new file mode 100644
index 00000000000..16f3b461627
--- /dev/null
+++ b/sound/synth/emux/emux.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
+ *
+ * Routines for control of EMU WaveTable chip
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <sound/driver.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/emux_synth.h>
+#include <linux/init.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(snd_emux_t **remu)
+{
+ snd_emux_t *emu;
+
+ *remu = NULL;
+ emu = kcalloc(1, sizeof(*emu), GFP_KERNEL);
+ if (emu == NULL)
+ return -ENOMEM;
+
+ spin_lock_init(&emu->voice_lock);
+ init_MUTEX(&emu->register_mutex);
+
+ emu->client = -1;
+#ifdef CONFIG_SND_SEQUENCER_OSS
+ emu->oss_synth = NULL;
+#endif
+ emu->max_voices = 0;
+ emu->use_time = 0;
+
+ init_timer(&emu->tlist);
+ emu->tlist.function = snd_emux_timer_callback;
+ emu->tlist.data = (unsigned long)emu;
+ emu->timer_active = 0;
+
+ *remu = emu;
+ return 0;
+}
+
+
+/*
+ */
+int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name)
+{
+ int err;
+ snd_sf_callback_t sf_cb;
+
+ snd_assert(emu->hw != NULL, return -EINVAL);
+ snd_assert(emu->max_voices > 0, return -EINVAL);
+ snd_assert(card != NULL, return -EINVAL);
+ snd_assert(name != NULL, return -EINVAL);
+
+ emu->card = card;
+ emu->name = snd_kmalloc_strdup(name, GFP_KERNEL);
+ emu->voices = kcalloc(emu->max_voices, sizeof(snd_emux_voice_t), GFP_KERNEL);
+ if (emu->voices == NULL)
+ return -ENOMEM;
+
+ /* create soundfont list */
+ memset(&sf_cb, 0, sizeof(sf_cb));
+ sf_cb.private_data = emu;
+ sf_cb.sample_new = (snd_sf_sample_new_t)emu->ops.sample_new;
+ sf_cb.sample_free = (snd_sf_sample_free_t)emu->ops.sample_free;
+ sf_cb.sample_reset = (snd_sf_sample_reset_t)emu->ops.sample_reset;
+ emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
+ if (emu->sflist == NULL)
+ return -ENOMEM;
+
+ if ((err = snd_emux_init_hwdep(emu)) < 0)
+ return err;
+
+ snd_emux_init_voices(emu);
+
+ snd_emux_init_seq(emu, card, index);
+#ifdef CONFIG_SND_SEQUENCER_OSS
+ snd_emux_init_seq_oss(emu);
+#endif
+ snd_emux_init_virmidi(emu, card);
+
+#ifdef CONFIG_PROC_FS
+ snd_emux_proc_init(emu, card, index);
+#endif
+ return 0;
+}
+
+
+/*
+ */
+int snd_emux_free(snd_emux_t *emu)
+{
+ unsigned long flags;
+
+ if (! emu)
+ return -EINVAL;
+
+ spin_lock_irqsave(&emu->voice_lock, flags);
+ if (emu->timer_active)
+ del_timer(&emu->tlist);
+ spin_unlock_irqrestore(&emu->voice_lock, flags);
+
+#ifdef CONFIG_PROC_FS
+ snd_emux_proc_free(emu);
+#endif
+ snd_emux_delete_virmidi(emu);
+#ifdef CONFIG_SND_SEQUENCER_OSS
+ snd_emux_detach_seq_oss(emu);
+#endif
+ snd_emux_detach_seq(emu);
+
+ snd_emux_delete_hwdep(emu);
+
+ if (emu->sflist)
+ snd_sf_free(emu->sflist);
+
+ kfree(emu->voices);
+ kfree(emu->name);
+ kfree(emu);
+ return 0;
+}
+
+
+EXPORT_SYMBOL(snd_emux_new);
+EXPORT_SYMBOL(snd_emux_register);
+EXPORT_SYMBOL(snd_emux_free);
+
+EXPORT_SYMBOL(snd_emux_terminate_all);
+EXPORT_SYMBOL(snd_emux_lock_voice);
+EXPORT_SYMBOL(snd_emux_unlock_voice);
+
+/* soundfont.c */
+EXPORT_SYMBOL(snd_sf_linear_to_log);
+
+
+/*
+ * INIT part
+ */
+
+static int __init alsa_emux_init(void)
+{
+ return 0;
+}
+
+static void __exit alsa_emux_exit(void)
+{
+}
+
+module_init(alsa_emux_init)
+module_exit(alsa_emux_exit)