diff options
Diffstat (limited to 'sound/isa/adlib.c')
-rw-r--r-- | sound/isa/adlib.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sound/isa/adlib.c b/sound/isa/adlib.c new file mode 100644 index 000000000..5105524b6 --- /dev/null +++ b/sound/isa/adlib.c @@ -0,0 +1,116 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * 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_hw_array(port, long, ioport, NULL, 0444); +MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); + +static int 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 snd_adlib_probe(struct device *dev, unsigned int n) +{ + struct snd_card *card; + struct snd_opl3 *opl3; + int error; + + error = snd_card_new(dev, 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; + } + + 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 snd_adlib_remove(struct device *dev, unsigned int n) +{ + snd_card_free(dev_get_drvdata(dev)); + return 0; +} + +static struct isa_driver snd_adlib_driver = { + .match = snd_adlib_match, + .probe = snd_adlib_probe, + .remove = snd_adlib_remove, + + .driver = { + .name = DEV_NAME + } +}; + +module_isa_driver(snd_adlib_driver, SNDRV_CARDS); |