136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/*
|
|
* 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 <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(struct snd_seq_device *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_delete_device(struct snd_seq_device *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);
|
|
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 struct snd_seq_dev_ops ops = {
|
|
snd_emu8000_new_device,
|
|
snd_emu8000_delete_device,
|
|
};
|
|
return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops,
|
|
sizeof(struct snd_emu8000*));
|
|
}
|
|
|
|
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)
|