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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/isa/sb/emu8000_synth.c
downloadlinux-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
linux-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/isa/sb/emu8000_synth.c')
-rw-r--r--sound/isa/sb/emu8000_synth.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
new file mode 100644
index 000000000000..1f63aa52d596
--- /dev/null
+++ b/sound/isa/sb/emu8000_synth.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@suse.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 <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_new_device(snd_seq_device_t *dev)
+{
+ emu8000_t *hw;
+ snd_emux_t *emu;
+
+ hw = *(emu8000_t**)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("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_delete_device(snd_seq_device_t *dev)
+{
+ emu8000_t *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);
+ if (hw->emu)
+ snd_emux_free(hw->emu);
+ if (hw->memhdr)
+ snd_util_memhdr_free(hw->memhdr);
+ hw->emu = NULL;
+ hw->memhdr = NULL;
+ return 0;
+}
+
+/*
+ * INIT part
+ */
+
+static int __init alsa_emu8000_init(void)
+{
+
+ static snd_seq_dev_ops_t ops = {
+ snd_emu8000_new_device,
+ snd_emu8000_delete_device,
+ };
+ return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops, sizeof(emu8000_t*));
+}
+
+static void __exit alsa_emu8000_exit(void)
+{
+ snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU8000);
+}
+
+module_init(alsa_emu8000_init)
+module_exit(alsa_emu8000_exit)