1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* AdLib FM card driver.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/isa.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/opl3.h>
#define CRD_NAME "AdLib FM"
#define DEV_NAME "adlib"
MODULE_DESCRIPTION(CRD_NAME);
MODULE_AUTHOR("Rene Herman");
MODULE_LICENSE("GPL");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
static int __devinit snd_adlib_match(struct device *dev, unsigned int n)
{
if (!enable[n])
return 0;
if (port[n] == SNDRV_AUTO_PORT) {
dev_err(dev, "please specify port\n");
return 0;
}
return 1;
}
static void snd_adlib_free(struct snd_card *card)
{
release_and_free_resource(card->private_data);
}
static int __devinit snd_adlib_probe(struct device *dev, unsigned int n)
{
struct snd_card *card;
struct snd_opl3 *opl3;
int error;
error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
if (error < 0) {
dev_err(dev, "could not create card\n");
return error;
}
card->private_data = request_region(port[n], 4, CRD_NAME);
if (!card->private_data) {
dev_err(dev, "could not grab ports\n");
error = -EBUSY;
goto out;
}
card->private_free = snd_adlib_free;
strcpy(card->driver, DEV_NAME);
strcpy(card->shortname, CRD_NAME);
sprintf(card->longname, CRD_NAME " at %#lx", port[n]);
error = snd_opl3_create(card, port[n], port[n] + 2, OPL3_HW_AUTO, 1, &opl3);
if (error < 0) {
dev_err(dev, "could not create OPL\n");
goto out;
}
error = snd_opl3_hwdep_new(opl3, 0, 0, NULL);
if (error < 0) {
dev_err(dev, "could not create FM\n");
goto out;
}
snd_card_set_dev(card, dev);
error = snd_card_register(card);
if (error < 0) {
dev_err(dev, "could not register card\n");
goto out;
}
dev_set_drvdata(dev, card);
return 0;
out: snd_card_free(card);
return error;
}
static int __devexit snd_adlib_remove(struct device *dev, unsigned int n)
{
snd_card_free(dev_get_drvdata(dev));
dev_set_drvdata(dev, NULL);
return 0;
}
static struct isa_driver snd_adlib_driver = {
.match = snd_adlib_match,
.probe = snd_adlib_probe,
.remove = __devexit_p(snd_adlib_remove),
.driver = {
.name = DEV_NAME
}
};
static int __init alsa_card_adlib_init(void)
{
return isa_register_driver(&snd_adlib_driver, SNDRV_CARDS);
}
static void __exit alsa_card_adlib_exit(void)
{
isa_unregister_driver(&snd_adlib_driver);
}
module_init(alsa_card_adlib_init);
module_exit(alsa_card_adlib_exit);
|
