Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

130 lines (105 sloc) 3.007 kb
/*
* 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);
Jump to Line
Something went wrong with that request. Please try again.