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115 lines
2.7 KiB
115 lines
2.7 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* AdLib FM card driver. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/isa.h> |
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#include <sound/core.h> |
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#include <sound/initval.h> |
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#include <sound/opl3.h> |
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#define CRD_NAME "AdLib FM" |
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#define DEV_NAME "adlib" |
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MODULE_DESCRIPTION(CRD_NAME); |
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MODULE_AUTHOR("Rene Herman"); |
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MODULE_LICENSE("GPL"); |
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; |
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static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
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module_param_array(index, int, NULL, 0444); |
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MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); |
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module_param_array(id, charp, NULL, 0444); |
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MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); |
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module_param_array(enable, bool, NULL, 0444); |
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MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); |
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module_param_hw_array(port, long, ioport, NULL, 0444); |
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MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); |
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static int snd_adlib_match(struct device *dev, unsigned int n) |
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{ |
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if (!enable[n]) |
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return 0; |
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if (port[n] == SNDRV_AUTO_PORT) { |
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dev_err(dev, "please specify port\n"); |
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return 0; |
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} |
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return 1; |
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} |
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static void snd_adlib_free(struct snd_card *card) |
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{ |
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release_and_free_resource(card->private_data); |
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} |
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static int snd_adlib_probe(struct device *dev, unsigned int n) |
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{ |
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struct snd_card *card; |
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struct snd_opl3 *opl3; |
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int error; |
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error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); |
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if (error < 0) { |
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dev_err(dev, "could not create card\n"); |
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return error; |
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} |
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card->private_data = request_region(port[n], 4, CRD_NAME); |
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if (!card->private_data) { |
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dev_err(dev, "could not grab ports\n"); |
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error = -EBUSY; |
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goto out; |
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} |
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card->private_free = snd_adlib_free; |
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strcpy(card->driver, DEV_NAME); |
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strcpy(card->shortname, CRD_NAME); |
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sprintf(card->longname, CRD_NAME " at %#lx", port[n]); |
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error = snd_opl3_create(card, port[n], port[n] + 2, OPL3_HW_AUTO, 1, &opl3); |
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if (error < 0) { |
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dev_err(dev, "could not create OPL\n"); |
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goto out; |
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} |
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error = snd_opl3_hwdep_new(opl3, 0, 0, NULL); |
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if (error < 0) { |
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dev_err(dev, "could not create FM\n"); |
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goto out; |
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} |
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error = snd_card_register(card); |
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if (error < 0) { |
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dev_err(dev, "could not register card\n"); |
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goto out; |
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} |
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dev_set_drvdata(dev, card); |
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return 0; |
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out: snd_card_free(card); |
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return error; |
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} |
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static void snd_adlib_remove(struct device *dev, unsigned int n) |
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{ |
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snd_card_free(dev_get_drvdata(dev)); |
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} |
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static struct isa_driver snd_adlib_driver = { |
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.match = snd_adlib_match, |
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.probe = snd_adlib_probe, |
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.remove = snd_adlib_remove, |
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.driver = { |
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.name = DEV_NAME |
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} |
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}; |
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module_isa_driver(snd_adlib_driver, SNDRV_CARDS);
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