| /* |
| * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible |
| * Copyright (c) by Jaroslav Kysela <perex@suse.cz> |
| * |
| * |
| * 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 <sound/driver.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <sound/core.h> |
| #include <sound/sb.h> |
| #include <sound/opl3.h> |
| #define SNDRV_LEGACY_AUTO_PROBE |
| #define SNDRV_GET_ID |
| #include <sound/initval.h> |
| |
| #define chip_t sb_t |
| |
| EXPORT_NO_SYMBOLS; |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); |
| MODULE_LICENSE("GPL"); |
| MODULE_CLASSES("{sound}"); |
| MODULE_DEVICES("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}"); |
| |
| static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ |
| static long snd_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ |
| static int snd_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ |
| static int snd_dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ |
| |
| MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_index, "Index value for Sound Blaster soundcard."); |
| MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC); |
| MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s"); |
| MODULE_PARM_DESC(snd_id, "ID string for Sound Blaster soundcard."); |
| MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC); |
| MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_enable, "Enable Sound Blaster soundcard."); |
| MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC); |
| MODULE_PARM(snd_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); |
| MODULE_PARM_DESC(snd_port, "Port # for SB8 driver."); |
| MODULE_PARM_SYNTAX(snd_port, SNDRV_PORT12_DESC); |
| MODULE_PARM(snd_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_irq, "IRQ # for SB8 driver."); |
| MODULE_PARM_SYNTAX(snd_irq, SNDRV_IRQ_DESC); |
| MODULE_PARM(snd_dma8, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_dma8, "8-bit DMA # for SB8 driver."); |
| MODULE_PARM_SYNTAX(snd_dma8, SNDRV_DMA8_DESC); |
| |
| 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 void snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| sb_t *chip = snd_magic_cast(sb_t, dev_id, return); |
| |
| if (chip->open & SB_OPEN_PCM) { |
| snd_sb8dsp_interrupt(chip); |
| } else { |
| 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(snd_index[dev], snd_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, snd_port[dev], snd_irq[dev], |
| snd_sb8_interrupt, |
| snd_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-card-als100 module\n", |
| snd_port[dev]); |
| else |
| snd_printdd("SB 16 chip detected at 0x%lx, try snd-card-sb16 module\n", |
| snd_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) { |
| 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) { |
| 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, |
| snd_irq[dev], snd_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 port) |
| { |
| static int dev = 0; |
| int res; |
| |
| for ( ; dev < SNDRV_CARDS; dev++) { |
| if (!snd_enable[dev] || snd_port[dev] != SNDRV_AUTO_PORT) |
| continue; |
| snd_port[dev] = port; |
| res = snd_sb8_probe(dev); |
| if (res < 0) |
| snd_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; |
| |
| for (dev = cards = 0; dev < SNDRV_CARDS && snd_enable[dev]; dev++) { |
| if (snd_port[dev] == SNDRV_AUTO_PORT) |
| continue; |
| if (snd_sb8_probe(dev) >= 0) |
| cards++; |
| } |
| cards += snd_legacy_auto_probe(possible_ports, snd_card_sb8_legacy_auto_probe); |
| if (!cards) { |
| #ifdef MODULE |
| 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) |
| |
| #ifndef MODULE |
| |
| /* format is: snd-sb8=snd_enable,snd_index,snd_id, |
| snd_port,snd_irq,snd_dma8 */ |
| |
| static int __init alsa_card_sb8_setup(char *str) |
| { |
| static unsigned __initdata nr_dev = 0; |
| |
| if (nr_dev >= SNDRV_CARDS) |
| return 0; |
| (void)(get_option(&str,&snd_enable[nr_dev]) == 2 && |
| get_option(&str,&snd_index[nr_dev]) == 2 && |
| get_id(&str,&snd_id[nr_dev]) == 2 && |
| get_option(&str,(int *)&snd_port[nr_dev]) == 2 && |
| get_option(&str,&snd_irq[nr_dev]) == 2 && |
| get_option(&str,&snd_dma8[nr_dev]) == 2); |
| nr_dev++; |
| return 1; |
| } |
| |
| __setup("snd-sb8=", alsa_card_sb8_setup); |
| |
| #endif /* ifndef MODULE */ |