// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for SoundBlaster 1 . 0 / 2 . 0 / Pro soundcards and compatible
* Copyright ( c ) by Jaroslav Kysela < perex @ perex . cz >
*/
#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/string.h>
#include <sound/core.h>
#include <sound/sb.h>
#include <sound/opl3.h>
#include <sound/initval.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>" );
MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro" );
MODULE_LICENSE("GPL" );
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool 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_hw_array(port, long , ioport, NULL, 0444 );
MODULE_PARM_DESC(port, "Port # for SB8 driver." );
module_param_hw_array(irq, int , irq, NULL, 0444 );
MODULE_PARM_DESC(irq, "IRQ # for SB8 driver." );
module_param_hw_array(dma8, int , dma, 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 */
struct snd_sb *chip;
};
static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
{
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 int snd_sb8_match(struct device *pdev, unsigned int dev)
{
if (!enable[dev])
return 0 ;
if (irq[dev] == SNDRV_AUTO_IRQ) {
dev_err(pdev, "please specify irq\n" );
return 0 ;
}
if (dma8[dev] == SNDRV_AUTO_DMA) {
dev_err(pdev, "please specify dma8\n" );
return 0 ;
}
return 1 ;
}
static int snd_sb8_probe(struct device *pdev, unsigned int dev)
{
struct snd_sb *chip;
struct snd_card *card;
struct snd_sb8 *acard;
struct snd_opl3 *opl3;
int err;
err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
sizeof (struct snd_sb8), &card);
if (err < 0 )
return err;
acard = card->private_data;
/*
* Block the 0 x388 port to avoid PnP conflicts .
* No need to check this value after request_region ,
* as we never do anything with it .
*/
acard->fm_res = devm_request_region(card->dev, 0 x388, 4 ,
"SoundBlaster FM" );
if (port[dev] != SNDRV_AUTO_PORT) {
err = snd_sbdsp_create(card, port[dev], irq[dev],
snd_sb8_interrupt, dma8[dev],
-1 , SB_HW_AUTO, &chip);
if (err < 0 )
return err;
} else {
/* auto-probe legacy ports */
static const unsigned long possible_ports[] = {
0 x220, 0 x240, 0 x260,
};
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))
return -EINVAL;
}
acard->chip = chip;
if (chip->hardware >= SB_HW_16) {
if (chip->hardware == SB_HW_ALS100)
dev_warn(pdev, "ALS100 chip detected at 0x%lx, try snd-als100 module\n" ,
port[dev]);
else
dev_warn(pdev, "SB 16 chip detected at 0x%lx, try snd-sb16 module\n" ,
port[dev]);
return -ENODEV;
}
err = snd_sb8dsp_pcm(chip, 0 );
if (err < 0 )
return err;
err = snd_sbmixer_new(chip);
if (err < 0 )
return err;
if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
err = snd_opl3_create(card, chip->port + 8 , 0 ,
OPL3_HW_AUTO, 1 , &opl3);
if (err < 0 )
dev_warn(pdev, "sb8: no OPL device at 0x%lx\n" , chip->port + 8 );
} else {
err = snd_opl3_create(card, chip->port, chip->port + 2 ,
OPL3_HW_AUTO, 1 , &opl3);
if (err < 0 ) {
dev_warn(pdev, "sb8: no OPL device at 0x%lx-0x%lx\n" ,
chip->port, chip->port + 2 );
}
}
if (err >= 0 ) {
err = snd_opl3_hwdep_new(opl3, 0 , 1 , NULL);
if (err < 0 )
return err;
}
err = snd_sb8dsp_midi(chip, 0 );
if (err < 0 )
return err;
strscpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8" );
strscpy(card->shortname, chip->name);
sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d" ,
chip->name,
chip->port,
irq[dev], dma8[dev]);
err = snd_card_register(card);
if (err < 0 )
return err;
dev_set_drvdata(pdev, card);
return 0 ;
}
#ifdef CONFIG_PM
static int snd_sb8_suspend(struct device *dev, unsigned int n,
pm_message_t state)
{
struct snd_card *card = dev_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_sbmixer_suspend(chip);
return 0 ;
}
static int snd_sb8_resume(struct device *dev, unsigned int n)
{
struct snd_card *card = dev_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 DEV_NAME "sb8"
static struct isa_driver snd_sb8_driver = {
.match = snd_sb8_match,
.probe = snd_sb8_probe,
#ifdef CONFIG_PM
.suspend = snd_sb8_suspend,
.resume = snd_sb8_resume,
#endif
.driver = {
.name = DEV_NAME
},
};
module_isa_driver(snd_sb8_driver, SNDRV_CARDS);
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(vorverarbeitet am 2026-09-28)
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