1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Routines for control of EMU10K1 WaveTable synth
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include "emu10k1_synth_local.h"
9*4882a593Smuzhiyun #include <linux/init.h>
10*4882a593Smuzhiyun #include <linux/module.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun MODULE_AUTHOR("Takashi Iwai");
13*4882a593Smuzhiyun MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
14*4882a593Smuzhiyun MODULE_LICENSE("GPL");
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun /*
17*4882a593Smuzhiyun * create a new hardware dependent device for Emu10k1
18*4882a593Smuzhiyun */
snd_emu10k1_synth_probe(struct device * _dev)19*4882a593Smuzhiyun static int snd_emu10k1_synth_probe(struct device *_dev)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun struct snd_seq_device *dev = to_seq_dev(_dev);
22*4882a593Smuzhiyun struct snd_emux *emux;
23*4882a593Smuzhiyun struct snd_emu10k1 *hw;
24*4882a593Smuzhiyun struct snd_emu10k1_synth_arg *arg;
25*4882a593Smuzhiyun unsigned long flags;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
28*4882a593Smuzhiyun if (arg == NULL)
29*4882a593Smuzhiyun return -EINVAL;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun if (arg->seq_ports <= 0)
32*4882a593Smuzhiyun return 0; /* nothing */
33*4882a593Smuzhiyun if (arg->max_voices < 1)
34*4882a593Smuzhiyun arg->max_voices = 1;
35*4882a593Smuzhiyun else if (arg->max_voices > 64)
36*4882a593Smuzhiyun arg->max_voices = 64;
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun if (snd_emux_new(&emux) < 0)
39*4882a593Smuzhiyun return -ENOMEM;
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun snd_emu10k1_ops_setup(emux);
42*4882a593Smuzhiyun hw = arg->hwptr;
43*4882a593Smuzhiyun emux->hw = hw;
44*4882a593Smuzhiyun emux->max_voices = arg->max_voices;
45*4882a593Smuzhiyun emux->num_ports = arg->seq_ports;
46*4882a593Smuzhiyun emux->pitch_shift = -501;
47*4882a593Smuzhiyun emux->memhdr = hw->memhdr;
48*4882a593Smuzhiyun /* maximum two ports */
49*4882a593Smuzhiyun emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
50*4882a593Smuzhiyun /* audigy has two external midis */
51*4882a593Smuzhiyun emux->midi_devidx = hw->audigy ? 2 : 1;
52*4882a593Smuzhiyun emux->linear_panning = 0;
53*4882a593Smuzhiyun emux->hwdep_idx = 2; /* FIXED */
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
56*4882a593Smuzhiyun snd_emux_free(emux);
57*4882a593Smuzhiyun return -ENOMEM;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun spin_lock_irqsave(&hw->voice_lock, flags);
61*4882a593Smuzhiyun hw->synth = emux;
62*4882a593Smuzhiyun hw->get_synth_voice = snd_emu10k1_synth_get_voice;
63*4882a593Smuzhiyun spin_unlock_irqrestore(&hw->voice_lock, flags);
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun dev->driver_data = emux;
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun return 0;
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun
snd_emu10k1_synth_remove(struct device * _dev)70*4882a593Smuzhiyun static int snd_emu10k1_synth_remove(struct device *_dev)
71*4882a593Smuzhiyun {
72*4882a593Smuzhiyun struct snd_seq_device *dev = to_seq_dev(_dev);
73*4882a593Smuzhiyun struct snd_emux *emux;
74*4882a593Smuzhiyun struct snd_emu10k1 *hw;
75*4882a593Smuzhiyun unsigned long flags;
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun if (dev->driver_data == NULL)
78*4882a593Smuzhiyun return 0; /* not registered actually */
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun emux = dev->driver_data;
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun hw = emux->hw;
83*4882a593Smuzhiyun spin_lock_irqsave(&hw->voice_lock, flags);
84*4882a593Smuzhiyun hw->synth = NULL;
85*4882a593Smuzhiyun hw->get_synth_voice = NULL;
86*4882a593Smuzhiyun spin_unlock_irqrestore(&hw->voice_lock, flags);
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun snd_emux_free(emux);
89*4882a593Smuzhiyun return 0;
90*4882a593Smuzhiyun }
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun /*
93*4882a593Smuzhiyun * INIT part
94*4882a593Smuzhiyun */
95*4882a593Smuzhiyun
96*4882a593Smuzhiyun static struct snd_seq_driver emu10k1_synth_driver = {
97*4882a593Smuzhiyun .driver = {
98*4882a593Smuzhiyun .name = KBUILD_MODNAME,
99*4882a593Smuzhiyun .probe = snd_emu10k1_synth_probe,
100*4882a593Smuzhiyun .remove = snd_emu10k1_synth_remove,
101*4882a593Smuzhiyun },
102*4882a593Smuzhiyun .id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
103*4882a593Smuzhiyun .argsize = sizeof(struct snd_emu10k1_synth_arg),
104*4882a593Smuzhiyun };
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun module_snd_seq_driver(emu10k1_synth_driver);
107