// 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 ");
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 0x388 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, 0x388, 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[] = {
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))
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);