Do not disable interrupts when reading min_free_kbytes
[linux-2.6/mini2440.git] / sound / isa / adlib.c
blob1124344ed948b38005041306e322d8107a7af4d1
1 /*
2 * AdLib FM card driver.
3 */
5 #include <sound/driver.h>
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 #include <linux/platform_device.h>
9 #include <sound/core.h>
10 #include <sound/initval.h>
11 #include <sound/opl3.h>
13 #define CRD_NAME "AdLib FM"
14 #define DRV_NAME "snd_adlib"
16 MODULE_DESCRIPTION(CRD_NAME);
17 MODULE_AUTHOR("Rene Herman");
18 MODULE_LICENSE("GPL");
20 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
21 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
22 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
23 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
25 module_param_array(index, int, NULL, 0444);
26 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
27 module_param_array(id, charp, NULL, 0444);
28 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
29 module_param_array(enable, bool, NULL, 0444);
30 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
31 module_param_array(port, long, NULL, 0444);
32 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
34 static struct platform_device *devices[SNDRV_CARDS];
36 static void snd_adlib_free(struct snd_card *card)
38 release_and_free_resource(card->private_data);
41 static int __devinit snd_adlib_probe(struct platform_device *device)
43 struct snd_card *card;
44 struct snd_opl3 *opl3;
46 int error, i = device->id;
48 if (port[i] == SNDRV_AUTO_PORT) {
49 snd_printk(KERN_ERR DRV_NAME ": please specify port\n");
50 error = -EINVAL;
51 goto out0;
54 card = snd_card_new(index[i], id[i], THIS_MODULE, 0);
55 if (!card) {
56 snd_printk(KERN_ERR DRV_NAME ": could not create card\n");
57 error = -EINVAL;
58 goto out0;
61 card->private_data = request_region(port[i], 4, CRD_NAME);
62 if (!card->private_data) {
63 snd_printk(KERN_ERR DRV_NAME ": could not grab ports\n");
64 error = -EBUSY;
65 goto out1;
67 card->private_free = snd_adlib_free;
69 error = snd_opl3_create(card, port[i], port[i] + 2, OPL3_HW_AUTO, 1, &opl3);
70 if (error < 0) {
71 snd_printk(KERN_ERR DRV_NAME ": could not create OPL\n");
72 goto out1;
75 error = snd_opl3_hwdep_new(opl3, 0, 0, NULL);
76 if (error < 0) {
77 snd_printk(KERN_ERR DRV_NAME ": could not create FM\n");
78 goto out1;
81 strcpy(card->driver, DRV_NAME);
82 strcpy(card->shortname, CRD_NAME);
83 sprintf(card->longname, CRD_NAME " at %#lx", port[i]);
85 snd_card_set_dev(card, &device->dev);
87 error = snd_card_register(card);
88 if (error < 0) {
89 snd_printk(KERN_ERR DRV_NAME ": could not register card\n");
90 goto out1;
93 platform_set_drvdata(device, card);
94 return 0;
96 out1: snd_card_free(card);
97 out0: return error;
100 static int __devexit snd_adlib_remove(struct platform_device *device)
102 snd_card_free(platform_get_drvdata(device));
103 platform_set_drvdata(device, NULL);
104 return 0;
107 static struct platform_driver snd_adlib_driver = {
108 .probe = snd_adlib_probe,
109 .remove = __devexit_p(snd_adlib_remove),
111 .driver = {
112 .name = DRV_NAME
116 static int __init alsa_card_adlib_init(void)
118 int i, cards;
120 if (platform_driver_register(&snd_adlib_driver) < 0) {
121 snd_printk(KERN_ERR DRV_NAME ": could not register driver\n");
122 return -ENODEV;
125 for (cards = 0, i = 0; i < SNDRV_CARDS; i++) {
126 struct platform_device *device;
128 if (!enable[i])
129 continue;
131 device = platform_device_register_simple(DRV_NAME, i, NULL, 0);
132 if (IS_ERR(device))
133 continue;
135 if (!platform_get_drvdata(device)) {
136 platform_device_unregister(device);
137 continue;
140 devices[i] = device;
141 cards++;
144 if (!cards) {
145 #ifdef MODULE
146 printk(KERN_ERR CRD_NAME " soundcard not found or device busy\n");
147 #endif
148 platform_driver_unregister(&snd_adlib_driver);
149 return -ENODEV;
151 return 0;
154 static void __exit alsa_card_adlib_exit(void)
156 int i;
158 for (i = 0; i < SNDRV_CARDS; i++)
159 platform_device_unregister(devices[i]);
160 platform_driver_unregister(&snd_adlib_driver);
163 module_init(alsa_card_adlib_init);
164 module_exit(alsa_card_adlib_exit);