130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
|
|
* 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 int 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);
|