1/*
2 *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
3 *
4 *  Routines for control of EMU10K1 WaveTable synth
5 *
6 *   This program is free software; you can redistribute it and/or modify
7 *   it under the terms of the GNU General Public License as published by
8 *   the Free Software Foundation; either version 2 of the License, or
9 *   (at your option) any later version.
10 *
11 *   This program is distributed in the hope that it will be useful,
12 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *   GNU General Public License for more details.
15 *
16 *   You should have received a copy of the GNU General Public License
17 *   along with this program; if not, write to the Free Software
18 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19 */
20
21#include "emu10k1_synth_local.h"
22#include <linux/init.h>
23#include <linux/module.h>
24
25MODULE_AUTHOR("Takashi Iwai");
26MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
27MODULE_LICENSE("GPL");
28
29/*
30 * create a new hardware dependent device for Emu10k1
31 */
32static int snd_emu10k1_synth_probe(struct device *_dev)
33{
34	struct snd_seq_device *dev = to_seq_dev(_dev);
35	struct snd_emux *emux;
36	struct snd_emu10k1 *hw;
37	struct snd_emu10k1_synth_arg *arg;
38	unsigned long flags;
39
40	arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
41	if (arg == NULL)
42		return -EINVAL;
43
44	if (arg->seq_ports <= 0)
45		return 0; /* nothing */
46	if (arg->max_voices < 1)
47		arg->max_voices = 1;
48	else if (arg->max_voices > 64)
49		arg->max_voices = 64;
50
51	if (snd_emux_new(&emux) < 0)
52		return -ENOMEM;
53
54	snd_emu10k1_ops_setup(emux);
55	hw = arg->hwptr;
56	emux->hw = hw;
57	emux->max_voices = arg->max_voices;
58	emux->num_ports = arg->seq_ports;
59	emux->pitch_shift = -501;
60	emux->memhdr = hw->memhdr;
61	/* maximum two ports */
62	emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
63	/* audigy has two external midis */
64	emux->midi_devidx = hw->audigy ? 2 : 1;
65	emux->linear_panning = 0;
66	emux->hwdep_idx = 2; /* FIXED */
67
68	if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
69		snd_emux_free(emux);
70		return -ENOMEM;
71	}
72
73	spin_lock_irqsave(&hw->voice_lock, flags);
74	hw->synth = emux;
75	hw->get_synth_voice = snd_emu10k1_synth_get_voice;
76	spin_unlock_irqrestore(&hw->voice_lock, flags);
77
78	dev->driver_data = emux;
79
80	return 0;
81}
82
83static int snd_emu10k1_synth_remove(struct device *_dev)
84{
85	struct snd_seq_device *dev = to_seq_dev(_dev);
86	struct snd_emux *emux;
87	struct snd_emu10k1 *hw;
88	unsigned long flags;
89
90	if (dev->driver_data == NULL)
91		return 0; /* not registered actually */
92
93	emux = dev->driver_data;
94
95	hw = emux->hw;
96	spin_lock_irqsave(&hw->voice_lock, flags);
97	hw->synth = NULL;
98	hw->get_synth_voice = NULL;
99	spin_unlock_irqrestore(&hw->voice_lock, flags);
100
101	snd_emux_free(emux);
102	return 0;
103}
104
105/*
106 *  INIT part
107 */
108
109static struct snd_seq_driver emu10k1_synth_driver = {
110	.driver = {
111		.name = KBUILD_MODNAME,
112		.probe = snd_emu10k1_synth_probe,
113		.remove = snd_emu10k1_synth_remove,
114	},
115	.id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
116	.argsize = sizeof(struct snd_emu10k1_synth_arg),
117};
118
119module_snd_seq_driver(emu10k1_synth_driver);
120