asoc: tegra: rt5639/40: Add irq based HS detection
[linux-3.10.git] / sound / isa / adlib.c
1 /*
2  * AdLib FM card driver.
3  */
4
5 #include <linux/kernel.h>
6 #include <linux/module.h>
7 #include <linux/isa.h>
8 #include <sound/core.h>
9 #include <sound/initval.h>
10 #include <sound/opl3.h>
11
12 #define CRD_NAME "AdLib FM"
13 #define DEV_NAME "adlib"
14
15 MODULE_DESCRIPTION(CRD_NAME);
16 MODULE_AUTHOR("Rene Herman");
17 MODULE_LICENSE("GPL");
18
19 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
20 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
21 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
22 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
23
24 module_param_array(index, int, NULL, 0444);
25 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
26 module_param_array(id, charp, NULL, 0444);
27 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
28 module_param_array(enable, bool, NULL, 0444);
29 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
30 module_param_array(port, long, NULL, 0444);
31 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
32
33 static int snd_adlib_match(struct device *dev, unsigned int n)
34 {
35         if (!enable[n])
36                 return 0;
37
38         if (port[n] == SNDRV_AUTO_PORT) {
39                 dev_err(dev, "please specify port\n");
40                 return 0;
41         }
42         return 1;
43 }
44
45 static void snd_adlib_free(struct snd_card *card)
46 {
47         release_and_free_resource(card->private_data);
48 }
49
50 static int snd_adlib_probe(struct device *dev, unsigned int n)
51 {
52         struct snd_card *card;
53         struct snd_opl3 *opl3;
54         int error;
55
56         error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
57         if (error < 0) {
58                 dev_err(dev, "could not create card\n");
59                 return error;
60         }
61
62         card->private_data = request_region(port[n], 4, CRD_NAME);
63         if (!card->private_data) {
64                 dev_err(dev, "could not grab ports\n");
65                 error = -EBUSY;
66                 goto out;
67         }
68         card->private_free = snd_adlib_free;
69
70         strcpy(card->driver, DEV_NAME);
71         strcpy(card->shortname, CRD_NAME);
72         sprintf(card->longname, CRD_NAME " at %#lx", port[n]);
73
74         error = snd_opl3_create(card, port[n], port[n] + 2, OPL3_HW_AUTO, 1, &opl3);
75         if (error < 0) {
76                 dev_err(dev, "could not create OPL\n");
77                 goto out;
78         }
79
80         error = snd_opl3_hwdep_new(opl3, 0, 0, NULL);
81         if (error < 0) {
82                 dev_err(dev, "could not create FM\n");
83                 goto out;
84         }
85
86         snd_card_set_dev(card, dev);
87
88         error = snd_card_register(card);
89         if (error < 0) {
90                 dev_err(dev, "could not register card\n");
91                 goto out;
92         }
93
94         dev_set_drvdata(dev, card);
95         return 0;
96
97 out:    snd_card_free(card);
98         return error;
99 }
100
101 static int snd_adlib_remove(struct device *dev, unsigned int n)
102 {
103         snd_card_free(dev_get_drvdata(dev));
104         dev_set_drvdata(dev, NULL);
105         return 0;
106 }
107
108 static struct isa_driver snd_adlib_driver = {
109         .match          = snd_adlib_match,
110         .probe          = snd_adlib_probe,
111         .remove         = snd_adlib_remove,
112
113         .driver         = {
114                 .name   = DEV_NAME
115         }
116 };
117
118 static int __init alsa_card_adlib_init(void)
119 {
120         return isa_register_driver(&snd_adlib_driver, SNDRV_CARDS);
121 }
122
123 static void __exit alsa_card_adlib_exit(void)
124 {
125         isa_unregister_driver(&snd_adlib_driver);
126 }
127
128 module_init(alsa_card_adlib_init);
129 module_exit(alsa_card_adlib_exit);