1 files changed, 120 insertions, 0 deletions

diff --git a/sound/pci/emu10k1/emu10k1_synth.c b/sound/pci/emu10k1/emu10k1_synth.c
new file mode 100644
index 000000000000..8bd58d1dcc26
--- /dev/null
+++ b/sound/pci/emu10k1/emu10k1_synth.c
@@ -0,0 +1,120 @@
+/*
+ *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
+ *
+ *  Routines for control of EMU10K1 WaveTable synth
+ *
+ *   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 "emu10k1_synth_local.h"
+#include <linux/init.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_new_device(snd_seq_device_t *dev)
+{
+        snd_emux_t *emu;
+        emu10k1_t *hw;
+        snd_emu10k1_synth_arg_t *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(&emu) < 0)
+                return -ENOMEM;
+
+        snd_emu10k1_ops_setup(emu);
+        emu->hw = hw = arg->hwptr;
+        emu->max_voices = arg->max_voices;
+        emu->num_ports = arg->seq_ports;
+        emu->pitch_shift = -501;
+        emu->memhdr = hw->memhdr;
+        emu->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2; /* maximum two ports */
+        emu->midi_devidx = hw->audigy ? 2 : 1; /* audigy has two external midis */
+        emu->linear_panning = 0;
+        emu->hwdep_idx = 2; /* FIXED */
+
+        if (snd_emux_register(emu, dev->card, arg->index, "Emu10k1") < 0) {
+                snd_emux_free(emu);
+                emu->hw = NULL;
+                return -ENOMEM;
+        }
+
+        spin_lock_irqsave(&hw->voice_lock, flags);
+        hw->synth = emu;
+        hw->get_synth_voice = snd_emu10k1_synth_get_voice;
+        spin_unlock_irqrestore(&hw->voice_lock, flags);
+
+        dev->driver_data = emu;
+
+        return 0;
+}
+
+static int snd_emu10k1_synth_delete_device(snd_seq_device_t *dev)
+{
+        snd_emux_t *emu;
+        emu10k1_t *hw;
+        unsigned long flags;
+
+        if (dev->driver_data == NULL)
+                return 0; /* not registered actually */
+
+        emu = dev->driver_data;
+
+        hw = emu->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(emu);
+        return 0;
+}
+
+/*
+ *  INIT part
+ */
+
+static int __init alsa_emu10k1_synth_init(void)
+{
+        
+        static snd_seq_dev_ops_t ops = {
+                snd_emu10k1_synth_new_device,
+                snd_emu10k1_synth_delete_device,
+        };
+        return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops, sizeof(snd_emu10k1_synth_arg_t));
+}
+
+static void __exit alsa_emu10k1_synth_exit(void)
+{
+        snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH);
+}
+
+module_init(alsa_emu10k1_synth_init)
+module_exit(alsa_emu10k1_synth_exit)