1/*
2 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 *     and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk>
4 *  Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
5 *
6 *  Emu8000 synth plug-in routine
7 *
8 *   This program is free software; you can redistribute it and/or modify
9 *   it under the terms of the GNU General Public License as published by
10 *   the Free Software Foundation; either version 2 of the License, or
11 *   (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21 */
22
23#include "emu8000_local.h"
24#include <linux/init.h>
25#include <linux/module.h>
26#include <sound/initval.h>
27
28MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe");
29MODULE_DESCRIPTION("Emu8000 synth plug-in routine");
30MODULE_LICENSE("GPL");
31
32/*----------------------------------------------------------------*/
33
34/*
35 * create a new hardware dependent device for Emu8000
36 */
37static int snd_emu8000_probe(struct device *_dev)
38{
39	struct snd_seq_device *dev = to_seq_dev(_dev);
40	struct snd_emu8000 *hw;
41	struct snd_emux *emu;
42
43	hw = *(struct snd_emu8000**)SNDRV_SEQ_DEVICE_ARGPTR(dev);
44	if (hw == NULL)
45		return -EINVAL;
46
47	if (hw->emu)
48		return -EBUSY; /* already exists..? */
49
50	if (snd_emux_new(&emu) < 0)
51		return -ENOMEM;
52
53	hw->emu = emu;
54	snd_emu8000_ops_setup(hw);
55
56	emu->hw = hw;
57	emu->max_voices = EMU8000_DRAM_VOICES;
58	emu->num_ports = hw->seq_ports;
59
60	if (hw->memhdr) {
61		snd_printk(KERN_ERR "memhdr is already initialized!?\n");
62		snd_util_memhdr_free(hw->memhdr);
63	}
64	hw->memhdr = snd_util_memhdr_new(hw->mem_size);
65	if (hw->memhdr == NULL) {
66		snd_emux_free(emu);
67		hw->emu = NULL;
68		return -ENOMEM;
69	}
70
71	emu->memhdr = hw->memhdr;
72	emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */
73	emu->midi_devidx = 1;
74	emu->linear_panning = 1;
75	emu->hwdep_idx = 2; /* FIXED */
76
77	if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) {
78		snd_emux_free(emu);
79		snd_util_memhdr_free(hw->memhdr);
80		hw->emu = NULL;
81		hw->memhdr = NULL;
82		return -ENOMEM;
83	}
84
85	if (hw->mem_size > 0)
86		snd_emu8000_pcm_new(dev->card, hw, 1);
87
88	dev->driver_data = hw;
89
90	return 0;
91}
92
93
94/*
95 * free all resources
96 */
97static int snd_emu8000_remove(struct device *_dev)
98{
99	struct snd_seq_device *dev = to_seq_dev(_dev);
100	struct snd_emu8000 *hw;
101
102	if (dev->driver_data == NULL)
103		return 0; /* no synth was allocated actually */
104
105	hw = dev->driver_data;
106	if (hw->pcm)
107		snd_device_free(dev->card, hw->pcm);
108	snd_emux_free(hw->emu);
109	snd_util_memhdr_free(hw->memhdr);
110	hw->emu = NULL;
111	hw->memhdr = NULL;
112	return 0;
113}
114
115/*
116 *  INIT part
117 */
118
119static struct snd_seq_driver emu8000_driver = {
120	.driver = {
121		.name = KBUILD_MODNAME,
122		.probe = snd_emu8000_probe,
123		.remove = snd_emu8000_remove,
124	},
125	.id = SNDRV_SEQ_DEV_ID_EMU8000,
126	.argsize = sizeof(struct snd_emu8000 *),
127};
128
129module_snd_seq_driver(emu8000_driver);
130