Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / pci / emu10k1 / emu10k1_synth.c

diff --git a/kernel/sound/pci/emu10k1/emu10k1_synth.c b/kernel/sound/pci/emu10k1/emu10k1_synth.c
new file mode 100644 (file)
index 0000000..5457d56
--- /dev/null
+++ b/kernel/sound/pci/emu10k1/emu10k1_synth.c
@@ -0,0 +1,119 @@
+/*
+ *  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>
+#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);