/* * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible * Copyright (c) by Jaroslav Kysela * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #define SNDRV_LEGACY_AUTO_PROBE #include MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard."); module_param_array(port, long, NULL, 0444); MODULE_PARM_DESC(port, "Port # for SB8 driver."); module_param_array(irq, int, NULL, 0444); MODULE_PARM_DESC(irq, "IRQ # for SB8 driver."); module_param_array(dma8, int, NULL, 0444); MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver."); struct snd_sb8 { struct resource *fm_res; /* used to block FM i/o region for legacy cards */ }; static snd_card_t *snd_sb8_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs) { sb_t *chip = dev_id; if (chip->open & SB_OPEN_PCM) { return snd_sb8dsp_interrupt(chip); } else { return snd_sb8dsp_midi_interrupt(chip); } } static void snd_sb8_free(snd_card_t *card) { struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data; if (acard == NULL) return; if (acard->fm_res) { release_resource(acard->fm_res); kfree_nocheck(acard->fm_res); } } static int __init snd_sb8_probe(int dev) { sb_t *chip; snd_card_t *card; struct snd_sb8 *acard; opl3_t *opl3; int err; card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(struct snd_sb8)); if (card == NULL) return -ENOMEM; acard = (struct snd_sb8 *)card->private_data; card->private_free = snd_sb8_free; /* block the 0x388 port to avoid PnP conflicts */ acard->fm_res = request_region(0x388, 4, "SoundBlaster FM"); if ((err = snd_sbdsp_create(card, port[dev], irq[dev], snd_sb8_interrupt, dma8[dev], -1, SB_HW_AUTO, &chip)) < 0) { snd_card_free(card); return err; } if (chip->hardware >= SB_HW_16) { snd_card_free(card); if (chip->hardware == SB_HW_ALS100) snd_printdd("ALS100 chip detected at 0x%lx, try snd-als100 module\n", port[dev]); else snd_printdd("SB 16 chip detected at 0x%lx, try snd-sb16 module\n", port[dev]); return -ENODEV; } if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) { snd_card_free(card); return err; } if ((err = snd_sbmixer_new(chip)) < 0) { snd_card_free(card); return err; } if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { if ((err = snd_opl3_create(card, chip->port + 8, 0, OPL3_HW_AUTO, 1, &opl3)) < 0) { snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx\n", chip->port + 8); } } else { if ((err = snd_opl3_create(card, chip->port, chip->port + 2, OPL3_HW_AUTO, 1, &opl3)) < 0) { snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx-0x%lx\n", chip->port, chip->port + 2); } } if (err >= 0) { if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { snd_card_free(card); return err; } } if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) { snd_card_free(card); return err; } strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); strcpy(card->shortname, chip->name); sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", chip->name, chip->port, irq[dev], dma8[dev]); if ((err = snd_card_register(card)) < 0) { snd_card_free(card); return err; } snd_sb8_cards[dev] = card; return 0; } static int __init snd_card_sb8_legacy_auto_probe(unsigned long xport) { static int dev; int res; for ( ; dev < SNDRV_CARDS; dev++) { if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT) continue; port[dev] = xport; res = snd_sb8_probe(dev); if (res < 0) port[dev] = SNDRV_AUTO_PORT; return res; } return -ENODEV; } static int __init alsa_card_sb8_init(void) { static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1}; int dev, cards, i; for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { if (port[dev] == SNDRV_AUTO_PORT) continue; if (snd_sb8_probe(dev) >= 0) cards++; } i = snd_legacy_auto_probe(possible_ports, snd_card_sb8_legacy_auto_probe); if (i > 0) cards += i; if (!cards) { #ifdef MODULE snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n"); #endif return -ENODEV; } return 0; } static void __exit alsa_card_sb8_exit(void) { int idx; for (idx = 0; idx < SNDRV_CARDS; idx++) snd_card_free(snd_sb8_cards[idx]); } module_init(alsa_card_sb8_init) module_exit(alsa_card_sb8_exit)