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/*

 * AdLib FM card driver.

 */

#include <sound/driver.h>

#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) {

                snd_printk(KERN_ERR "%s: please specify port\n", dev->bus_id);

                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;

        card = snd_card_new(index[n], id[n], THIS_MODULE, 0);

        if (!card) {

                snd_printk(KERN_ERR "%s: could not create card\n", dev->bus_id);

                return -EINVAL;

        }

        card->private_data = request_region(port[n], 4, CRD_NAME);

        if (!card->private_data) {

                snd_printk(KERN_ERR "%s: could not grab ports\n", dev->bus_id);

                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) {

                snd_printk(KERN_ERR "%s: could not create OPL\n", dev->bus_id);

                goto out;

        }

        error = snd_opl3_hwdep_new(opl3, 0, 0, NULL);

        if (error < 0) {

                snd_printk(KERN_ERR "%s: could not create FM\n", dev->bus_id);

                goto out;

        }

        snd_card_set_dev(card, dev);

        error = snd_card_register(card);

        if (error < 0) {

                snd_printk(KERN_ERR "%s: could not register card\n", dev->bus_id);

                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);