/* * 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 #include #include #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."); static struct platform_device *devices[SNDRV_CARDS]; struct snd_sb8 { struct resource *fm_res; /* used to block FM i/o region for legacy cards */ struct snd_sb *chip; }; static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct snd_sb *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(struct snd_card *card) { struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data; if (acard == NULL) return; release_and_free_resource(acard->fm_res); } static int __init snd_sb8_probe(struct platform_device *pdev) { int dev = pdev->id; struct snd_sb *chip; struct snd_card *card; struct snd_sb8 *acard; struct snd_opl3 *opl3; int err; card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(struct snd_sb8)); if (card == NULL) return -ENOMEM; acard = 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 (port[dev] != SNDRV_AUTO_PORT) { if ((err = snd_sbdsp_create(card, port[dev], irq[dev], snd_sb8_interrupt, dma8[dev], -1, SB_HW_AUTO, &chip)) < 0) goto _err; } else { /* auto-probe legacy ports */ static unsigned long possible_ports[] = { 0x220, 0x240, 0x260, }; int i; for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { err = snd_sbdsp_create(card, possible_ports[i], irq[dev], snd_sb8_interrupt, dma8[dev], -1, SB_HW_AUTO, &chip); if (err >= 0) { port[dev] = possible_ports[i]; break; } } if (i >= ARRAY_SIZE(possible_ports)) goto _err; } acard->chip = chip; if (chip->hardware >= SB_HW_16) { if (chip->hardware == SB_HW_ALS100) snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n", port[dev]); else snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n", port[dev]); err = -ENODEV; goto _err; } if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) goto _err; if ((err = snd_sbmixer_new(chip)) < 0) goto _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_WARNING "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_WARNING "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) goto _err; } if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) goto _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]); snd_card_set_dev(card, &pdev->dev); if ((err = snd_card_register(card)) < 0) goto _err; platform_set_drvdata(pdev, card); return 0; _err: snd_card_free(card); return err; } static int snd_sb8_remove(struct platform_device *pdev) { snd_card_free(platform_get_drvdata(pdev)); platform_set_drvdata(pdev, NULL); return 0; } #ifdef CONFIG_PM static int snd_sb8_suspend(struct platform_device *dev, pm_message_t state) { struct snd_card *card = platform_get_drvdata(dev); struct snd_sb8 *acard = card->private_data; struct snd_sb *chip = acard->chip; snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); snd_pcm_suspend_all(chip->pcm); snd_sbmixer_suspend(chip); return 0; } static int snd_sb8_resume(struct platform_device *dev) { struct snd_card *card = platform_get_drvdata(dev); struct snd_sb8 *acard = card->private_data; struct snd_sb *chip = acard->chip; snd_sbdsp_reset(chip); snd_sbmixer_resume(chip); snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } #endif #define SND_SB8_DRIVER "snd_sb8" static struct platform_driver snd_sb8_driver = { .probe = snd_sb8_probe, .remove = snd_sb8_remove, #ifdef CONFIG_PM .suspend = snd_sb8_suspend, .resume = snd_sb8_resume, #endif .driver = { .name = SND_SB8_DRIVER }, }; static void __init_or_module snd_sb8_unregister_all(void) { int i; for (i = 0; i < ARRAY_SIZE(devices); ++i) platform_device_unregister(devices[i]); platform_driver_unregister(&snd_sb8_driver); } static int __init alsa_card_sb8_init(void) { int i, cards, err; err = platform_driver_register(&snd_sb8_driver); if (err < 0) return err; cards = 0; for (i = 0; i < SNDRV_CARDS; i++) { struct platform_device *device; if (! enable[i]) continue; device = platform_device_register_simple(SND_SB8_DRIVER, i, NULL, 0); if (IS_ERR(device)) continue; if (!platform_get_drvdata(device)) { platform_device_unregister(device); continue; } devices[i] = device; cards++; } if (!cards) { #ifdef MODULE snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n"); #endif snd_sb8_unregister_all(); return -ENODEV; } return 0; } static void __exit alsa_card_sb8_exit(void) { snd_sb8_unregister_all(); } module_init(alsa_card_sb8_init) module_exit(alsa_card_sb8_exit)