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