Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / isa / sb / emu8000_synth.c

diff --git a/kernel/sound/isa/sb/emu8000_synth.c b/kernel/sound/isa/sb/emu8000_synth.c
new file mode 100644 (file)
index 0000000..4aa719c
--- /dev/null
+++ b/kernel/sound/isa/sb/emu8000_synth.c
@@ -0,0 +1,129 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *     and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk>
+ *  Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
+ *
+ *  Emu8000 synth plug-in routine
+ *
+ *   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 "emu8000_local.h"
+#include <linux/init.h>
+#include <linux/module.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe");
+MODULE_DESCRIPTION("Emu8000 synth plug-in routine");
+MODULE_LICENSE("GPL");
+
+/*----------------------------------------------------------------*/
+
+/*
+ * create a new hardware dependent device for Emu8000
+ */
+static int snd_emu8000_probe(struct device *_dev)
+{
+       struct snd_seq_device *dev = to_seq_dev(_dev);
+       struct snd_emu8000 *hw;
+       struct snd_emux *emu;
+
+       hw = *(struct snd_emu8000**)SNDRV_SEQ_DEVICE_ARGPTR(dev);
+       if (hw == NULL)
+               return -EINVAL;
+
+       if (hw->emu)
+               return -EBUSY; /* already exists..? */
+
+       if (snd_emux_new(&emu) < 0)
+               return -ENOMEM;
+
+       hw->emu = emu;
+       snd_emu8000_ops_setup(hw);
+
+       emu->hw = hw;
+       emu->max_voices = EMU8000_DRAM_VOICES;
+       emu->num_ports = hw->seq_ports;
+
+       if (hw->memhdr) {
+               snd_printk(KERN_ERR "memhdr is already initialized!?\n");
+               snd_util_memhdr_free(hw->memhdr);
+       }
+       hw->memhdr = snd_util_memhdr_new(hw->mem_size);
+       if (hw->memhdr == NULL) {
+               snd_emux_free(emu);
+               hw->emu = NULL;
+               return -ENOMEM;
+       }
+
+       emu->memhdr = hw->memhdr;
+       emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */
+       emu->midi_devidx = 1;
+       emu->linear_panning = 1;
+       emu->hwdep_idx = 2; /* FIXED */
+
+       if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) {
+               snd_emux_free(emu);
+               snd_util_memhdr_free(hw->memhdr);
+               hw->emu = NULL;
+               hw->memhdr = NULL;
+               return -ENOMEM;
+       }
+
+       if (hw->mem_size > 0)
+               snd_emu8000_pcm_new(dev->card, hw, 1);
+
+       dev->driver_data = hw;
+
+       return 0;
+}
+
+
+/*
+ * free all resources
+ */
+static int snd_emu8000_remove(struct device *_dev)
+{
+       struct snd_seq_device *dev = to_seq_dev(_dev);
+       struct snd_emu8000 *hw;
+
+       if (dev->driver_data == NULL)
+               return 0; /* no synth was allocated actually */
+
+       hw = dev->driver_data;
+       if (hw->pcm)
+               snd_device_free(dev->card, hw->pcm);
+       snd_emux_free(hw->emu);
+       snd_util_memhdr_free(hw->memhdr);
+       hw->emu = NULL;
+       hw->memhdr = NULL;
+       return 0;
+}
+
+/*
+ *  INIT part
+ */
+
+static struct snd_seq_driver emu8000_driver = {
+       .driver = {
+               .name = KBUILD_MODNAME,
+               .probe = snd_emu8000_probe,
+               .remove = snd_emu8000_remove,
+       },
+       .id = SNDRV_SEQ_DEV_ID_EMU8000,
+       .argsize = sizeof(struct snd_emu8000 *),
+};
+
+module_snd_seq_driver(emu8000_driver);