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1da177e4 | 1 | /* |
c1017a4c | 2 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
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 <sound/initval.h> | |
26 | ||
27 | MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe"); | |
28 | MODULE_DESCRIPTION("Emu8000 synth plug-in routine"); | |
29 | MODULE_LICENSE("GPL"); | |
30 | ||
31 | /*----------------------------------------------------------------*/ | |
32 | ||
33 | /* | |
34 | * create a new hardware dependent device for Emu8000 | |
35 | */ | |
029d64b0 | 36 | static int snd_emu8000_new_device(struct snd_seq_device *dev) |
1da177e4 | 37 | { |
029d64b0 TI |
38 | struct snd_emu8000 *hw; |
39 | struct snd_emux *emu; | |
1da177e4 | 40 | |
029d64b0 | 41 | hw = *(struct snd_emu8000**)SNDRV_SEQ_DEVICE_ARGPTR(dev); |
1da177e4 LT |
42 | if (hw == NULL) |
43 | return -EINVAL; | |
44 | ||
45 | if (hw->emu) | |
46 | return -EBUSY; /* already exists..? */ | |
47 | ||
48 | if (snd_emux_new(&emu) < 0) | |
49 | return -ENOMEM; | |
50 | ||
51 | hw->emu = emu; | |
52 | snd_emu8000_ops_setup(hw); | |
53 | ||
54 | emu->hw = hw; | |
55 | emu->max_voices = EMU8000_DRAM_VOICES; | |
56 | emu->num_ports = hw->seq_ports; | |
57 | ||
58 | if (hw->memhdr) { | |
99b359ba | 59 | snd_printk(KERN_ERR "memhdr is already initialized!?\n"); |
1da177e4 LT |
60 | snd_util_memhdr_free(hw->memhdr); |
61 | } | |
62 | hw->memhdr = snd_util_memhdr_new(hw->mem_size); | |
63 | if (hw->memhdr == NULL) { | |
64 | snd_emux_free(emu); | |
65 | hw->emu = NULL; | |
66 | return -ENOMEM; | |
67 | } | |
68 | ||
69 | emu->memhdr = hw->memhdr; | |
70 | emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */ | |
71 | emu->midi_devidx = 1; | |
72 | emu->linear_panning = 1; | |
73 | emu->hwdep_idx = 2; /* FIXED */ | |
74 | ||
75 | if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) { | |
76 | snd_emux_free(emu); | |
77 | snd_util_memhdr_free(hw->memhdr); | |
78 | hw->emu = NULL; | |
79 | hw->memhdr = NULL; | |
80 | return -ENOMEM; | |
81 | } | |
82 | ||
83 | if (hw->mem_size > 0) | |
84 | snd_emu8000_pcm_new(dev->card, hw, 1); | |
85 | ||
86 | dev->driver_data = hw; | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | ||
92 | /* | |
93 | * free all resources | |
94 | */ | |
029d64b0 | 95 | static int snd_emu8000_delete_device(struct snd_seq_device *dev) |
1da177e4 | 96 | { |
029d64b0 | 97 | struct snd_emu8000 *hw; |
1da177e4 LT |
98 | |
99 | if (dev->driver_data == NULL) | |
100 | return 0; /* no synth was allocated actually */ | |
101 | ||
102 | hw = dev->driver_data; | |
103 | if (hw->pcm) | |
104 | snd_device_free(dev->card, hw->pcm); | |
105 | if (hw->emu) | |
106 | snd_emux_free(hw->emu); | |
107 | if (hw->memhdr) | |
108 | snd_util_memhdr_free(hw->memhdr); | |
109 | hw->emu = NULL; | |
110 | hw->memhdr = NULL; | |
111 | return 0; | |
112 | } | |
113 | ||
114 | /* | |
115 | * INIT part | |
116 | */ | |
117 | ||
118 | static int __init alsa_emu8000_init(void) | |
119 | { | |
120 | ||
029d64b0 | 121 | static struct snd_seq_dev_ops ops = { |
1da177e4 LT |
122 | snd_emu8000_new_device, |
123 | snd_emu8000_delete_device, | |
124 | }; | |
029d64b0 TI |
125 | return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops, |
126 | sizeof(struct snd_emu8000*)); | |
1da177e4 LT |
127 | } |
128 | ||
129 | static void __exit alsa_emu8000_exit(void) | |
130 | { | |
131 | snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU8000); | |
132 | } | |
133 | ||
134 | module_init(alsa_emu8000_init) | |
135 | module_exit(alsa_emu8000_exit) |