// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for SoundBlaster 16/AWE32/AWE64 soundcards
* Copyright (c) by Jaroslav Kysela <[email protected]>
*/
#include <asm/dma.h>
#include <linux/init.h>
#include <linux/pnp.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/sb.h>
#include <sound/sb16_csp.h>
#include <sound/mpu401.h>
#include <sound/opl3.h>
#include <sound/emu8000.h>
#include <sound/seq_device.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>
MODULE_AUTHOR("Jaroslav Kysela <[email protected]>");
MODULE_LICENSE("GPL");
#ifndef SNDRV_SBAWE
MODULE_DESCRIPTION("Sound Blaster 16");
#else
MODULE_DESCRIPTION("Sound Blaster AWE");
#endif
#if 0
#define SNDRV_DEBUG_IRQ
#endif
#if defined(SNDRV_SBAWE) && IS_ENABLED(CONFIG_SND_SEQUENCER)
#define SNDRV_SBAWE_EMU8000
#endif
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_ISAPNP; /* Enable this card */
#ifdef CONFIG_PNP
static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
#endif
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260,0x280 */
static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x330,0x300 */
static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
#ifdef SNDRV_SBAWE_EMU8000
static long awe_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
#endif
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
static int dma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 5,6,7 */
static int mic_agc[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
#ifdef CONFIG_SND_SB16_CSP
static int csp[SNDRV_CARDS];
#endif
#ifdef SNDRV_SBAWE_EMU8000
static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
#endif
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for SoundBlaster 16 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for SoundBlaster 16 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable SoundBlaster 16 soundcard.");
#ifdef CONFIG_PNP
module_param_array(isapnp, bool, NULL, 0444);
MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
#endif
module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for SB16 driver.");
module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for SB16 driver.");
module_param_hw_array(fm_port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(fm_port, "FM port # for SB16 PnP driver.");
#ifdef SNDRV_SBAWE_EMU8000
module_param_hw_array(awe_port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(awe_port, "AWE port # for SB16 PnP driver.");
#endif
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for SB16 driver.");
module_param_hw_array(dma8, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma8, "8-bit DMA # for SB16 driver.");
module_param_hw_array(dma16, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma16, "16-bit DMA # for SB16 driver.");
module_param_array(mic_agc, int, NULL, 0444);
MODULE_PARM_DESC(mic_agc, "Mic Auto-Gain-Control switch.");
#ifdef CONFIG_SND_SB16_CSP
module_param_array(csp, int, NULL, 0444);
MODULE_PARM_DESC(csp, "ASP/CSP chip support.");
#endif
#ifdef SNDRV_SBAWE_EMU8000
module_param_array(seq_ports, int, NULL, 0444);
MODULE_PARM_DESC(seq_ports, "Number of sequencer ports for WaveTable synth.");
#endif
#ifdef CONFIG_PNP
static int isa_registered;
static int pnp_registered;
#endif
struct snd_card_sb16 {
struct resource *fm_res; /* used to block FM i/o region for legacy cards */
struct snd_sb *chip;
#ifdef CONFIG_PNP
int dev_no;
struct pnp_dev *dev;
#ifdef SNDRV_SBAWE_EMU8000
struct pnp_dev *devwt;
#endif
#endif
};
#ifdef CONFIG_PNP
static const struct pnp_card_device_id snd_sb16_pnpids[] = {
#ifndef SNDRV_SBAWE
/* Sound Blaster 16 PnP */
{ .id = "CTL0024", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL0025", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL0026", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL0027", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL0028", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL0029", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL002a", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
/* Note: This card has also a CTL0051:StereoEnhance device!!! */
{ .id = "CTL002b", .devs = { { "CTL0031" } } },
/* Sound Blaster 16 PnP */
{ .id = "CTL002c", .devs = { { "CTL0031" } } },
/* Sound Blaster Vibra16S */
{ .id = "CTL0051", .devs = { { "CTL0001" } } },
/* Sound Blaster Vibra16C */
{ .id = "CTL0070", .devs = { { "CTL0001" } } },
/* Sound Blaster Vibra16CL - added by [email protected] */
{ .id = "CTL0080", .devs = { { "CTL0041" } } },
/* Sound Blaster 16 'value' PnP. It says model ct4130 on the pcb, */
/* but ct4131 on a sticker on the board.. */
{ .id = "CTL0086", .devs = { { "CTL0041" } } },
/* Sound Blaster Vibra16X */
{ .id = "CTL00f0", .devs = { { "CTL0043" } } },
/* Sound Blaster 16 (Virtual PC 2004) */
{ .id = "tBA03b0", .devs = { {.id="PNPb003" } } },
#else /* SNDRV_SBAWE defined */
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0035", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0039", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0042", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0043", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
/* Note: This card has also a CTL0051:StereoEnhance device!!! */
{ .id = "CTL0044", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
/* Note: This card has also a CTL0051:StereoEnhance device!!! */
{ .id = "CTL0045", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0046", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0047", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0048", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL0054", .devs = { { "CTL0031" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL009a", .devs = { { "CTL0041" }, { "CTL0021" } } },
/* Sound Blaster AWE 32 PnP */
{ .id = "CTL009c", .devs = { { "CTL0041" }, { "CTL0021" } } },
/* Sound Blaster 32 PnP */
{ .id = "CTL009f", .devs = { { "CTL0041" }, { "CTL0021" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL009d", .devs = { { "CTL0042" }, { "CTL0022" } } },
/* Sound Blaster AWE 64 PnP Gold */
{ .id = "CTL009e", .devs = { { "CTL0044" }, { "CTL0023" } } },
/* Sound Blaster AWE 64 PnP Gold */
{ .id = "CTL00b2", .devs = { { "CTL0044" }, { "CTL0023" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL00c1", .devs = { { "CTL0042" }, { "CTL0022" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL00c3", .devs = { { "CTL0045" }, { "CTL0022" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL00c5", .devs = { { "CTL0045" }, { "CTL0022" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL00c7", .devs = { { "CTL0045" }, { "CTL0022" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL00e4", .devs = { { "CTL0045" }, { "CTL0022" } } },
/* Sound Blaster AWE 64 PnP */
{ .id = "CTL00e9", .devs = { { "CTL0045" }, { "CTL0022" } } },
/* Sound Blaster 16 PnP (AWE) */
{ .id = "CTL00ed", .devs = { { "CTL0041" }, { "CTL0070" } } },
/* Generic entries */
{ .id = "CTLXXXX" , .devs = { { "CTL0031" }, { "CTL0021" } } },
{ .id = "CTLXXXX" , .devs = { { "CTL0041" }, { "CTL0021" } } },
{ .id = "CTLXXXX" , .devs = { { "CTL0042" }, { "CTL0022" } } },
{ .id = "CTLXXXX" , .devs = { { "CTL0044" }, { "CTL0023" } } },
{ .id = "CTLXXXX" , .devs = { { "CTL0045" }, { "CTL0022" } } },
#endif /* SNDRV_SBAWE */
{ .id = "", }
};
MODULE_DEVICE_TABLE(pnp_card, snd_sb16_pnpids);
#endif /* CONFIG_PNP */
#ifdef SNDRV_SBAWE_EMU8000
#define DRIVER_NAME "snd-card-sbawe"
#else
#define DRIVER_NAME "snd-card-sb16"
#endif
#ifdef CONFIG_PNP
static int snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
struct pnp_card_link *card,
const struct pnp_card_device_id *id)
{
struct pnp_dev *pdev;
int err;
acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
if (acard->dev == NULL)
return -ENODEV;
#ifdef SNDRV_SBAWE_EMU8000
acard->devwt = pnp_request_card_device(card, id->devs[1].id, acard->dev);
#endif
/* Audio initialization */
pdev = acard->dev;
err = pnp_activate_dev(pdev);
if (err < 0) {
dev_err(&pdev->dev, "AUDIO pnp configure failure\n");
return err;
}
port[dev] = pnp_port_start(pdev, 0);
mpu_port[dev] = pnp_port_start(pdev, 1);
fm_port[dev] = pnp_port_start(pdev, 2);
dma8[dev] = pnp_dma(pdev, 0);
dma16[dev] = pnp_dma(pdev, 1);
irq[dev] = pnp_irq(pdev, 0);
dev_dbg(&pdev->dev, "pnp SB16: port=0x%lx, mpu port=0x%lx, fm port=0x%lx\n",
port[dev], mpu_port[dev], fm_port[dev]);
dev_dbg(&pdev->dev, "pnp SB16: dma1=%i, dma2=%i, irq=%i\n",
dma8[dev], dma16[dev], irq[dev]);
#ifdef SNDRV_SBAWE_EMU8000
/* WaveTable initialization */
pdev = acard->devwt;
if (pdev != NULL) {
err = pnp_activate_dev(pdev);
if (err < 0) {
goto __wt_error;
}
awe_port[dev] = pnp_port_start(pdev, 0);
dev_dbg(&pdev->dev, "pnp SB16: wavetable port=0x%llx\n",
(unsigned long long)pnp_port_start(pdev, 0));
} else {
__wt_error:
if (pdev) {
pnp_release_card_device(pdev);
dev_err(&pdev->dev, "WaveTable pnp configure failure\n");
}
acard->devwt = NULL;
awe_port[dev] = -1;
}
#endif
return 0;
}
#endif /* CONFIG_PNP */
#ifdef CONFIG_PNP
#define is_isapnp_selected(dev) isapnp[dev]
#else
#define is_isapnp_selected(dev) 0
#endif
static int snd_sb16_card_new(struct device *devptr, int dev,
struct snd_card **cardp)
{
struct snd_card *card;
int err;
err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_card_sb16), &card);
if (err < 0)
return err;
*cardp = card;
return 0;
}
static int snd_sb16_probe(struct snd_card *card, int dev)
{
int xirq, xdma8, xdma16;
struct snd_sb *chip;
struct snd_card_sb16 *acard = card->private_data;
struct snd_opl3 *opl3;
struct snd_hwdep *synth = NULL;
#ifdef CONFIG_SND_SB16_CSP
struct snd_hwdep *xcsp = NULL;
#endif
unsigned long flags;
int err;
xirq = irq[dev];
xdma8 = dma8[dev];
xdma16 = dma16[dev];
err = snd_sbdsp_create(card, port[dev], xirq, snd_sb16dsp_interrupt,
xdma8, xdma16, SB_HW_AUTO, &chip);
if (err < 0)
return err;
acard->chip = chip;
if (chip->hardware != SB_HW_16) {
dev_err(card->dev, "SB 16 chip was not detected at 0x%lx\n", port[dev]);
return -ENODEV;
}
chip->mpu_port = mpu_port[dev];
if (!is_isapnp_selected(dev)) {
err = snd_sb16dsp_configure(chip);
if (err < 0)
return err;
}
err = snd_sb16dsp_pcm(chip, 0);
if (err < 0)
return err;
strcpy(card->driver,
#ifdef SNDRV_SBAWE_EMU8000
awe_port[dev] > 0 ? "SB AWE" :
#endif
"SB16");
strcpy(card->shortname, chip->name);
sprintf(card->longname, "%s at 0x%lx, irq %i, dma ",
chip->name,
chip->port,
xirq);
if (xdma8 >= 0)
sprintf(card->longname + strlen(card->longname), "%d", xdma8);
if (xdma16 >= 0)
sprintf(card->longname + strlen(card->longname), "%s%d",
xdma8 >= 0 ? "&" : "", xdma16);
if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB,
chip->mpu_port,
MPU401_INFO_IRQ_HOOK, -1,
&chip->rmidi);
if (err < 0)
return err;
chip->rmidi_callback = snd_mpu401_uart_interrupt;
}
#ifdef SNDRV_SBAWE_EMU8000
if (awe_port[dev] == SNDRV_AUTO_PORT)
awe_port[dev] = 0; /* disable */
#endif
if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
OPL3_HW_OPL3,
acard->fm_res != NULL || fm_port[dev] == port[dev],
&opl3) < 0) {
dev_err(card->dev, "no OPL device at 0x%lx-0x%lx\n",
fm_port[dev], fm_port[dev] + 2);
} else {
#ifdef SNDRV_SBAWE_EMU8000
int seqdev = awe_port[dev] > 0 ? 2 : 1;
#else
int seqdev = 1;
#endif
err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth);
if (err < 0)
return err;
}
}
err = snd_sbmixer_new(chip);
if (err < 0)
return err;
#ifdef CONFIG_SND_SB16_CSP
/* CSP chip on SB16ASP/AWE32 */
if ((chip->hardware == SB_HW_16) && csp[dev]) {
snd_sb_csp_new(chip, synth != NULL ? 1 : 0, &xcsp);
if (xcsp) {
chip->csp = xcsp->private_data;
chip->hardware = SB_HW_16CSP;
} else {
dev_info(card->dev,
"warning - CSP chip not detected on soundcard #%i\n",
dev + 1);
}
}
#endif
#ifdef SNDRV_SBAWE_EMU8000
if (awe_port[dev] > 0) {
err = snd_emu8000_new(card, 1, awe_port[dev],
seq_ports[dev], NULL);
if (err < 0) {
dev_err(card->dev,
"fatal error - EMU-8000 synthesizer not detected at 0x%lx\n",
awe_port[dev]);
return err;
}
}
#endif
/* setup Mic AGC */
spin_lock_irqsave(&chip->mixer_lock, flags);
snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
(snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
(mic_agc[dev] ? 0x00 : 0x01));
spin_unlock_irqrestore(&chip->mixer_lock, flags);
err = snd_card_register(card);
if (err < 0)
return err;
return 0;
}
#ifdef CONFIG_PM
static int snd_sb16_suspend(struct snd_card *card, pm_message_t state)
{
struct snd_card_sb16 *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_sb16_resume(struct snd_card *card)
{
struct snd_card_sb16 *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
static int snd_sb16_isa_probe1(int dev, struct device *pdev)
{
struct snd_card_sb16 *acard;
struct snd_card *card;
int err;
err = snd_sb16_card_new(pdev, dev, &card);
if (err < 0)
return err;
acard = card->private_data;
/* non-PnP FM port address is hardwired with base port address */
fm_port[dev] = port[dev];
/* block the 0x388 port to avoid PnP conflicts */
acard->fm_res = devm_request_region(card->dev, 0x388, 4,
"SoundBlaster FM");
#ifdef SNDRV_SBAWE_EMU8000
/* non-PnP AWE port address is hardwired with base port address */
awe_port[dev] = port[dev] + 0x400;
#endif
err = snd_sb16_probe(card, dev);
if (err < 0)
return err;
dev_set_drvdata(pdev, card);
return 0;
}
static int snd_sb16_isa_match(struct device *pdev, unsigned int dev)
{
return enable[dev] && !is_isapnp_selected(dev);
}
static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
{
int err;
static const int possible_irqs[] = {5, 9, 10, 7, -1};
static const int possible_dmas8[] = {1, 3, 0, -1};
static const int possible_dmas16[] = {5, 6, 7, -1};
if (irq[dev] == SNDRV_AUTO_IRQ) {
irq[dev] = snd_legacy_find_free_irq(possible_irqs);
if (irq[dev] < 0) {
dev_err(pdev, "unable to find a free IRQ\n");
return -EBUSY;
}
}
if (dma8[dev] == SNDRV_AUTO_DMA) {
dma8[dev] = snd_legacy_find_free_dma(possible_dmas8);
if (dma8[dev] < 0) {
dev_err(pdev, "unable to find a free 8-bit DMA\n");
return -EBUSY;
}
}
if (dma16[dev] == SNDRV_AUTO_DMA) {
dma16[dev] = snd_legacy_find_free_dma(possible_dmas16);
if (dma16[dev] < 0) {
dev_err(pdev, "unable to find a free 16-bit DMA\n");
return -EBUSY;
}
}
if (port[dev] != SNDRV_AUTO_PORT)
return snd_sb16_isa_probe1(dev, pdev);
else {
static const int possible_ports[] = {0x220, 0x240, 0x260, 0x280};
int i;
for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
port[dev] = possible_ports[i];
err = snd_sb16_isa_probe1(dev, pdev);
if (! err)
return 0;
}
return err;
}
}
#ifdef CONFIG_PM
static int snd_sb16_isa_suspend(struct device *dev, unsigned int n,
pm_message_t state)
{
return snd_sb16_suspend(dev_get_drvdata(dev), state);
}
static int snd_sb16_isa_resume(struct device *dev, unsigned int n)
{
return snd_sb16_resume(dev_get_drvdata(dev));
}
#endif
#ifdef SNDRV_SBAWE
#define DEV_NAME "sbawe"
#else
#define DEV_NAME "sb16"
#endif
static struct isa_driver snd_sb16_isa_driver = {
.match = snd_sb16_isa_match,
.probe = snd_sb16_isa_probe,
#ifdef CONFIG_PM
.suspend = snd_sb16_isa_suspend,
.resume = snd_sb16_isa_resume,
#endif
.driver = {
.name = DEV_NAME
},
};
#ifdef CONFIG_PNP
static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
const struct pnp_card_device_id *pid)
{
static int dev;
struct snd_card *card;
int res;
for ( ; dev < SNDRV_CARDS; dev++) {
if (!enable[dev] || !isapnp[dev])
continue;
res = snd_sb16_card_new(&pcard->card->dev, dev, &card);
if (res < 0)
return res;
res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid);
if (res < 0)
return res;
res = snd_sb16_probe(card, dev);
if (res < 0)
return res;
pnp_set_card_drvdata(pcard, card);
dev++;
return 0;
}
return -ENODEV;
}
#ifdef CONFIG_PM
static int snd_sb16_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
{
return snd_sb16_suspend(pnp_get_card_drvdata(pcard), state);
}
static int snd_sb16_pnp_resume(struct pnp_card_link *pcard)
{
return snd_sb16_resume(pnp_get_card_drvdata(pcard));
}
#endif
static struct pnp_card_driver sb16_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
#ifdef SNDRV_SBAWE
.name = "sbawe",
#else
.name = "sb16",
#endif
.id_table = snd_sb16_pnpids,
.probe = snd_sb16_pnp_detect,
#ifdef CONFIG_PM
.suspend = snd_sb16_pnp_suspend,
.resume = snd_sb16_pnp_resume,
#endif
};
#endif /* CONFIG_PNP */
static int __init alsa_card_sb16_init(void)
{
int err;
err = isa_register_driver(&snd_sb16_isa_driver, SNDRV_CARDS);
#ifdef CONFIG_PNP
if (!err)
isa_registered = 1;
err = pnp_register_card_driver(&sb16_pnpc_driver);
if (!err)
pnp_registered = 1;
if (isa_registered)
err = 0;
#endif
return err;
}
static void __exit alsa_card_sb16_exit(void)
{
#ifdef CONFIG_PNP
if (pnp_registered)
pnp_unregister_card_driver(&sb16_pnpc_driver);
if (isa_registered)
#endif
isa_unregister_driver(&snd_sb16_isa_driver);
}
module_init(alsa_card_sb16_init)
module_exit(alsa_card_sb16_exit)
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