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21#include "emu10k1_synth_local.h"
22#include <linux/init.h>
23
24MODULE_AUTHOR("Takashi Iwai");
25MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
26MODULE_LICENSE("GPL");
27
28
29
30
31static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
32{
33 struct snd_emux *emux;
34 struct snd_emu10k1 *hw;
35 struct snd_emu10k1_synth_arg *arg;
36 unsigned long flags;
37
38 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
39 if (arg == NULL)
40 return -EINVAL;
41
42 if (arg->seq_ports <= 0)
43 return 0;
44 if (arg->max_voices < 1)
45 arg->max_voices = 1;
46 else if (arg->max_voices > 64)
47 arg->max_voices = 64;
48
49 if (snd_emux_new(&emux) < 0)
50 return -ENOMEM;
51
52 snd_emu10k1_ops_setup(emux);
53 hw = arg->hwptr;
54 emux->hw = hw;
55 emux->max_voices = arg->max_voices;
56 emux->num_ports = arg->seq_ports;
57 emux->pitch_shift = -501;
58 emux->memhdr = hw->memhdr;
59
60 emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
61
62 emux->midi_devidx = hw->audigy ? 2 : 1;
63 emux->linear_panning = 0;
64 emux->hwdep_idx = 2;
65
66 if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
67 snd_emux_free(emux);
68 return -ENOMEM;
69 }
70
71 spin_lock_irqsave(&hw->voice_lock, flags);
72 hw->synth = emux;
73 hw->get_synth_voice = snd_emu10k1_synth_get_voice;
74 spin_unlock_irqrestore(&hw->voice_lock, flags);
75
76 dev->driver_data = emux;
77
78 return 0;
79}
80
81static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
82{
83 struct snd_emux *emux;
84 struct snd_emu10k1 *hw;
85 unsigned long flags;
86
87 if (dev->driver_data == NULL)
88 return 0;
89
90 emux = dev->driver_data;
91
92 hw = emux->hw;
93 spin_lock_irqsave(&hw->voice_lock, flags);
94 hw->synth = NULL;
95 hw->get_synth_voice = NULL;
96 spin_unlock_irqrestore(&hw->voice_lock, flags);
97
98 snd_emux_free(emux);
99 return 0;
100}
101
102
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104
105
106static int __init alsa_emu10k1_synth_init(void)
107{
108
109 static struct snd_seq_dev_ops ops = {
110 snd_emu10k1_synth_new_device,
111 snd_emu10k1_synth_delete_device,
112 };
113 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
114 sizeof(struct snd_emu10k1_synth_arg));
115}
116
117static void __exit alsa_emu10k1_synth_exit(void)
118{
119 snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH);
120}
121
122module_init(alsa_emu10k1_synth_init)
123module_exit(alsa_emu10k1_synth_exit)
124