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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /sound/isa/sb/emu8000_synth.c
Initial import
Diffstat (limited to 'sound/isa/sb/emu8000_synth.c')
-rw-r--r--sound/isa/sb/emu8000_synth.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
new file mode 100644
index 000000000..4aa719cad
--- /dev/null
+++ b/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);