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linux/sound/isa/gus/gusmax.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Gravis UltraSound MAX soundcard
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*/
#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/module.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/gus.h>
#include <sound/wss.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Gravis UltraSound MAX");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
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; /* 0x220,0x230,0x240,0x250,0x260 */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */
static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
module_param_hw_array(dma1, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
module_param_hw_array(dma2, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
module_param_array(joystick_dac, int, NULL, 0444);
MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
module_param_array(channels, int, NULL, 0444);
MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
module_param_array(pcm_channels, int, NULL, 0444);
MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
struct snd_gusmax {
int irq;
struct snd_card *card;
struct snd_gus_card *gus;
struct snd_wss *wss;
unsigned short gus_status_reg;
unsigned short pcm_status_reg;
};
#define PFX "gusmax: "
static int snd_gusmax_detect(struct snd_gus_card *gus)
{
unsigned char d;
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
udelay(160);
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
udelay(160);
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
return 0;
}
static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
{
struct snd_gusmax *maxcard = dev_id;
int loop, max = 5;
int handled = 0;
do {
loop = 0;
if (inb(maxcard->gus_status_reg)) {
handled = 1;
snd_gus_interrupt(irq, maxcard->gus);
loop++;
}
if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
handled = 1;
snd_wss_interrupt(irq, maxcard->wss);
loop++;
}
} while (loop && --max > 0);
return IRQ_RETVAL(handled);
}
static void snd_gusmax_init(int dev, struct snd_card *card,
struct snd_gus_card *gus)
{
gus->equal_irq = 1;
gus->codec_flag = 1;
gus->joystick_dac = joystick_dac[dev];
/* init control register */
gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
if (gus->gf1.dma1 > 3)
gus->max_cntrl_val |= 0x10;
if (gus->gf1.dma2 > 3)
gus->max_cntrl_val |= 0x20;
gus->max_cntrl_val |= 0x40;
outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
}
static int snd_gusmax_mixer(struct snd_wss *chip)
{
struct snd_card *card = chip->card;
struct snd_ctl_elem_id id1, id2;
int err;
memset(&id1, 0, sizeof(id1));
memset(&id2, 0, sizeof(id2));
id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
/* reassign AUXA to SYNTHESIZER */
strcpy(id1.name, "Aux Playback Switch");
strcpy(id2.name, "Synth Playback Switch");
if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
return err;
strcpy(id1.name, "Aux Playback Volume");
strcpy(id2.name, "Synth Playback Volume");
if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
return err;
/* reassign AUXB to CD */
strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
strcpy(id2.name, "CD Playback Switch");
if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
return err;
strcpy(id1.name, "Aux Playback Volume");
strcpy(id2.name, "CD Playback Volume");
if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
return err;
#if 0
/* reassign Mono Input to MIC */
if (snd_mixer_group_rename(mixer,
SNDRV_MIXER_IN_MONO, 0,
SNDRV_MIXER_IN_MIC, 0) < 0)
goto __error;
if (snd_mixer_elem_rename(mixer,
SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
SNDRV_MIXER_IN_MIC, 0) < 0)
goto __error;
if (snd_mixer_elem_rename(mixer,
"Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
"Mic Capture Volume", 0) < 0)
goto __error;
if (snd_mixer_elem_rename(mixer,
"Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
"Mic Capture Switch", 0) < 0)
goto __error;
#endif
return 0;
}
static void snd_gusmax_free(struct snd_card *card)
{
struct snd_gusmax *maxcard = card->private_data;
if (maxcard == NULL)
return;
if (maxcard->irq >= 0)
free_irq(maxcard->irq, (void *)maxcard);
}
static int snd_gusmax_match(struct device *pdev, unsigned int dev)
{
return enable[dev];
}
static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
{
static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
static const int possible_dmas[] = {5, 6, 7, 1, 3, -1};
int xirq, xdma1, xdma2, err;
struct snd_card *card;
struct snd_gus_card *gus = NULL;
struct snd_wss *wss;
struct snd_gusmax *maxcard;
err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_gusmax), &card);
if (err < 0)
return err;
card->private_free = snd_gusmax_free;
maxcard = card->private_data;
maxcard->card = card;
maxcard->irq = -1;
xirq = irq[dev];
if (xirq == SNDRV_AUTO_IRQ) {
if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
err = -EBUSY;
goto _err;
}
}
xdma1 = dma1[dev];
if (xdma1 == SNDRV_AUTO_DMA) {
if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
err = -EBUSY;
goto _err;
}
}
xdma2 = dma2[dev];
if (xdma2 == SNDRV_AUTO_DMA) {
if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
err = -EBUSY;
goto _err;
}
}
if (port[dev] != SNDRV_AUTO_PORT) {
err = snd_gus_create(card,
port[dev],
-xirq, xdma1, xdma2,
0, channels[dev],
pcm_channels[dev],
0, &gus);
} else {
static const unsigned long possible_ports[] = {
0x220, 0x230, 0x240, 0x250, 0x260
};
int i;
for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
err = snd_gus_create(card,
possible_ports[i],
-xirq, xdma1, xdma2,
0, channels[dev],
pcm_channels[dev],
0, &gus);
if (err >= 0) {
port[dev] = possible_ports[i];
break;
}
}
}
if (err < 0)
goto _err;
if ((err = snd_gusmax_detect(gus)) < 0)
goto _err;
maxcard->gus_status_reg = gus->gf1.reg_irqstat;
maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
snd_gusmax_init(dev, card, gus);
if ((err = snd_gus_initialize(gus)) < 0)
goto _err;
if (!gus->max_flag) {
snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
err = -ENODEV;
goto _err;
}
if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) {
snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
err = -EBUSY;
goto _err;
}
maxcard->irq = xirq;
card->sync_irq = maxcard->irq;
err = snd_wss_create(card,
gus->gf1.port + 0x10c, -1, xirq,
xdma2 < 0 ? xdma1 : xdma2, xdma1,
WSS_HW_DETECT,
WSS_HWSHARE_IRQ |
WSS_HWSHARE_DMA1 |
WSS_HWSHARE_DMA2,
&wss);
if (err < 0)
goto _err;
err = snd_wss_pcm(wss, 0);
if (err < 0)
goto _err;
err = snd_wss_mixer(wss);
if (err < 0)
goto _err;
err = snd_wss_timer(wss, 2);
if (err < 0)
goto _err;
if (pcm_channels[dev] > 0) {
if ((err = snd_gf1_pcm_new(gus, 1, 1)) < 0)
goto _err;
}
err = snd_gusmax_mixer(wss);
if (err < 0)
goto _err;
err = snd_gf1_rawmidi_new(gus, 0);
if (err < 0)
goto _err;
sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
if (xdma2 >= 0)
sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
err = snd_card_register(card);
if (err < 0)
goto _err;
maxcard->gus = gus;
maxcard->wss = wss;
dev_set_drvdata(pdev, card);
return 0;
_err:
snd_card_free(card);
return err;
}
static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
{
snd_card_free(dev_get_drvdata(devptr));
return 0;
}
#define DEV_NAME "gusmax"
static struct isa_driver snd_gusmax_driver = {
.match = snd_gusmax_match,
.probe = snd_gusmax_probe,
.remove = snd_gusmax_remove,
/* FIXME: suspend/resume */
.driver = {
.name = DEV_NAME
},
};
module_isa_driver(snd_gusmax_driver, SNDRV_CARDS);
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