[thirdparty/linux.git] / sound / isa / gus / gusmax.c

// 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 int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
	static 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 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;
	
	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);
Commit	Line	Data
1a59d1b8	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4 LT	2	/*
1da177e4 LT	3	* Driver for Gravis UltraSound MAX soundcard
c1017a4c	4	* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
1da177e4 LT	5	*/
1da177e4 LT	6
1da177e4	7	#include <linux/init.h>
654aa661	8	#include <linux/err.h>
5e24c1c1	9	#include <linux/isa.h>
1da177e4 LT	10	#include <linux/delay.h>
1da177e4 LT	11	#include <linux/time.h>
65a77217	12	#include <linux/module.h>
654aa661	13	#include <asm/dma.h>
1da177e4 LT	14	#include <sound/core.h>
1da177e4 LT	15	#include <sound/gus.h>
61ef19d7	16	#include <sound/wss.h>
1da177e4 LT	17	#define SNDRV_LEGACY_FIND_FREE_IRQ
	18	#define SNDRV_LEGACY_FIND_FREE_DMA
	19	#include <sound/initval.h>
	20
c1017a4c	21	MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
1da177e4 LT	22	MODULE_DESCRIPTION("Gravis UltraSound MAX");
	23	MODULE_LICENSE("GPL");
	24	MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
	25
	26	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
	27	static char id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; / ID for this card */
a67ff6a5	28	static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
1da177e4 LT	29	static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */
	30	static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */
	31	static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
	32	static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
	33	static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
	34	/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
	35	static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
	36	static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
	37
	38	module_param_array(index, int, NULL, 0444);
	39	MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
	40	module_param_array(id, charp, NULL, 0444);
	41	MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
	42	module_param_array(enable, bool, NULL, 0444);
	43	MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
e992ef57	44	module_param_hw_array(port, long, ioport, NULL, 0444);
1da177e4	45	MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
e992ef57	46	module_param_hw_array(irq, int, irq, NULL, 0444);
1da177e4	47	MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
e992ef57	48	module_param_hw_array(dma1, int, dma, NULL, 0444);
1da177e4	49	MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
e992ef57	50	module_param_hw_array(dma2, int, dma, NULL, 0444);
1da177e4 LT	51	MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
	52	module_param_array(joystick_dac, int, NULL, 0444);
	53	MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
	54	module_param_array(channels, int, NULL, 0444);
	55	MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
	56	module_param_array(pcm_channels, int, NULL, 0444);
	57	MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
	58
	59	struct snd_gusmax {
	60	int irq;
5e2da206 TI	61	struct snd_card *card;
5e2da206 TI	62	struct snd_gus_card *gus;
7779f75f	63	struct snd_wss *wss;
1da177e4 LT	64	unsigned short gus_status_reg;
	65	unsigned short pcm_status_reg;
	66	};
	67
43bcd973	68	#define PFX "gusmax: "
1da177e4	69
1bff292e	70	static int snd_gusmax_detect(struct snd_gus_card *gus)
1da177e4	71	{
43bcd973	72	unsigned char d;
1da177e4	73
43bcd973 TI	74	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
	75	if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
	76	snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
1da177e4	77	return -ENODEV;
43bcd973	78	}
1da177e4 LT	79	udelay(160);
	80	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
	81	udelay(160);
43bcd973 TI	82	if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
43bcd973 TI	83	snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
1da177e4	84	return -ENODEV;
43bcd973 TI	85	}
43bcd973 TI	86
1da177e4 LT	87	return 0;
	88	}
	89
7d12e780	90	static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
1da177e4	91	{
c7bec5ab	92	struct snd_gusmax *maxcard = dev_id;
1da177e4 LT	93	int loop, max = 5;
	94	int handled = 0;
	95
	96	do {
	97	loop = 0;
	98	if (inb(maxcard->gus_status_reg)) {
	99	handled = 1;
7d12e780	100	snd_gus_interrupt(irq, maxcard->gus);
1da177e4 LT	101	loop++;
	102	}
	103	if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
	104	handled = 1;
7779f75f	105	snd_wss_interrupt(irq, maxcard->wss);
1da177e4 LT	106	loop++;
	107	}
	108	} while (loop && --max > 0);
	109	return IRQ_RETVAL(handled);
	110	}
	111
1bff292e BP	112	static void snd_gusmax_init(int dev, struct snd_card *card,
1bff292e BP	113	struct snd_gus_card *gus)
1da177e4 LT	114	{
	115	gus->equal_irq = 1;
	116	gus->codec_flag = 1;
	117	gus->joystick_dac = joystick_dac[dev];
	118	/* init control register */
	119	gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
	120	if (gus->gf1.dma1 > 3)
	121	gus->max_cntrl_val \|= 0x10;
	122	if (gus->gf1.dma2 > 3)
	123	gus->max_cntrl_val \|= 0x20;
	124	gus->max_cntrl_val \|= 0x40;
	125	outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
	126	}
	127
1bff292e	128	static int snd_gusmax_mixer(struct snd_wss *chip)
1da177e4	129	{
5e2da206 TI	130	struct snd_card *card = chip->card;
5e2da206 TI	131	struct snd_ctl_elem_id id1, id2;
1da177e4 LT	132	int err;
	133
	134	memset(&id1, 0, sizeof(id1));
	135	memset(&id2, 0, sizeof(id2));
	136	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	137	/* reassign AUXA to SYNTHESIZER */
	138	strcpy(id1.name, "Aux Playback Switch");
	139	strcpy(id2.name, "Synth Playback Switch");
	140	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
	141	return err;
	142	strcpy(id1.name, "Aux Playback Volume");
	143	strcpy(id2.name, "Synth Playback Volume");
	144	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
	145	return err;
	146	/* reassign AUXB to CD */
	147	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
	148	strcpy(id2.name, "CD Playback Switch");
	149	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
	150	return err;
	151	strcpy(id1.name, "Aux Playback Volume");
	152	strcpy(id2.name, "CD Playback Volume");
	153	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
	154	return err;
	155	#if 0
	156	/* reassign Mono Input to MIC */
	157	if (snd_mixer_group_rename(mixer,
	158	SNDRV_MIXER_IN_MONO, 0,
	159	SNDRV_MIXER_IN_MIC, 0) < 0)
	160	goto __error;
	161	if (snd_mixer_elem_rename(mixer,
	162	SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
	163	SNDRV_MIXER_IN_MIC, 0) < 0)
	164	goto __error;
	165	if (snd_mixer_elem_rename(mixer,
	166	"Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
	167	"Mic Capture Volume", 0) < 0)
	168	goto __error;
	169	if (snd_mixer_elem_rename(mixer,
	170	"Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
	171	"Mic Capture Switch", 0) < 0)
	172	goto __error;
	173	#endif
	174	return 0;
	175	}
	176
5e2da206	177	static void snd_gusmax_free(struct snd_card *card)
1da177e4	178	{
9fe856e4	179	struct snd_gusmax *maxcard = card->private_data;
1da177e4 LT	180
	181	if (maxcard == NULL)
	182	return;
	183	if (maxcard->irq >= 0)
	184	free_irq(maxcard->irq, (void *)maxcard);
	185	}
	186
1bff292e	187	static int snd_gusmax_match(struct device *pdev, unsigned int dev)
5e24c1c1 TI	188	{
	189	return enable[dev];
	190	}
	191
1bff292e	192	static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
1da177e4 LT	193	{
	194	static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
	195	static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
	196	int xirq, xdma1, xdma2, err;
5e2da206 TI	197	struct snd_card *card;
5e2da206 TI	198	struct snd_gus_card *gus = NULL;
7779f75f	199	struct snd_wss *wss;
1da177e4 LT	200	struct snd_gusmax *maxcard;
1da177e4 LT	201
4323cc4d TI	202	err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
4323cc4d TI	203	sizeof(struct snd_gusmax), &card);
c95eadd2 TI	204	if (err < 0)
c95eadd2 TI	205	return err;
1da177e4	206	card->private_free = snd_gusmax_free;
9fe856e4	207	maxcard = card->private_data;
1da177e4 LT	208	maxcard->card = card;
	209	maxcard->irq = -1;
	210
	211	xirq = irq[dev];
	212	if (xirq == SNDRV_AUTO_IRQ) {
	213	if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
43bcd973 TI	214	snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
	215	err = -EBUSY;
	216	goto _err;
1da177e4 LT	217	}
	218	}
	219	xdma1 = dma1[dev];
	220	if (xdma1 == SNDRV_AUTO_DMA) {
	221	if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
43bcd973 TI	222	snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
	223	err = -EBUSY;
	224	goto _err;
1da177e4 LT	225	}
	226	}
	227	xdma2 = dma2[dev];
	228	if (xdma2 == SNDRV_AUTO_DMA) {
	229	if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
43bcd973 TI	230	snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
	231	err = -EBUSY;
	232	goto _err;
1da177e4 LT	233	}
	234	}
	235
654aa661 TI	236	if (port[dev] != SNDRV_AUTO_PORT) {
	237	err = snd_gus_create(card,
	238	port[dev],
	239	-xirq, xdma1, xdma2,
	240	0, channels[dev],
	241	pcm_channels[dev],
	242	0, &gus);
	243	} else {
	244	static unsigned long possible_ports[] = {
	245	0x220, 0x230, 0x240, 0x250, 0x260
	246	};
	247	int i;
	248	for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
	249	err = snd_gus_create(card,
	250	possible_ports[i],
	251	-xirq, xdma1, xdma2,
	252	0, channels[dev],
	253	pcm_channels[dev],
	254	0, &gus);
	255	if (err >= 0) {
	256	port[dev] = possible_ports[i];
	257	break;
	258	}
	259	}
	260	}
	261	if (err < 0)
43bcd973 TI	262	goto _err;
	263
	264	if ((err = snd_gusmax_detect(gus)) < 0)
	265	goto _err;
	266
1da177e4 LT	267	maxcard->gus_status_reg = gus->gf1.reg_irqstat;
	268	maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
	269	snd_gusmax_init(dev, card, gus);
43bcd973 TI	270	if ((err = snd_gus_initialize(gus)) < 0)
	271	goto _err;
	272
1da177e4	273	if (!gus->max_flag) {
43bcd973 TI	274	snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
	275	err = -ENODEV;
	276	goto _err;
1da177e4 LT	277	}
1da177e4 LT	278
88e24c3a	279	if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) {
43bcd973 TI	280	snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
	281	err = -EBUSY;
	282	goto _err;
1da177e4 LT	283	}
	284	maxcard->irq = xirq;
	285
7779f75f KH	286	err = snd_wss_create(card,
	287	gus->gf1.port + 0x10c, -1, xirq,
	288	xdma2 < 0 ? xdma1 : xdma2, xdma1,
	289	WSS_HW_DETECT,
	290	WSS_HWSHARE_IRQ \|
	291	WSS_HWSHARE_DMA1 \|
	292	WSS_HWSHARE_DMA2,
	293	&wss);
	294	if (err < 0)
43bcd973 TI	295	goto _err;
43bcd973 TI	296
fa60c065	297	err = snd_wss_pcm(wss, 0);
7779f75f	298	if (err < 0)
43bcd973 TI	299	goto _err;
43bcd973 TI	300
7779f75f KH	301	err = snd_wss_mixer(wss);
7779f75f KH	302	if (err < 0)
43bcd973 TI	303	goto _err;
43bcd973 TI	304
fa60c065	305	err = snd_wss_timer(wss, 2);
7779f75f	306	if (err < 0)
43bcd973 TI	307	goto _err;
43bcd973 TI	308
1da177e4	309	if (pcm_channels[dev] > 0) {
db5abb3c	310	if ((err = snd_gf1_pcm_new(gus, 1, 1)) < 0)
43bcd973	311	goto _err;
1da177e4	312	}
7779f75f KH	313	err = snd_gusmax_mixer(wss);
7779f75f KH	314	if (err < 0)
43bcd973	315	goto _err;
1da177e4	316
db5abb3c	317	err = snd_gf1_rawmidi_new(gus, 0);
7779f75f	318	if (err < 0)
43bcd973	319	goto _err;
1da177e4 LT	320
	321	sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
	322	if (xdma2 >= 0)
	323	sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
43bcd973	324
7779f75f KH	325	err = snd_card_register(card);
7779f75f KH	326	if (err < 0)
43bcd973	327	goto _err;
1da177e4 LT	328
1da177e4 LT	329	maxcard->gus = gus;
7779f75f	330	maxcard->wss = wss;
654aa661	331
5e24c1c1	332	dev_set_drvdata(pdev, card);
1da177e4	333	return 0;
43bcd973 TI	334
	335	_err:
	336	snd_card_free(card);
	337	return err;
1da177e4 LT	338	}
1da177e4 LT	339
1bff292e	340	static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
1da177e4	341	{
5e24c1c1	342	snd_card_free(dev_get_drvdata(devptr));
654aa661	343	return 0;
1da177e4 LT	344	}
1da177e4 LT	345
83c51c0a	346	#define DEV_NAME "gusmax"
654aa661	347
5e24c1c1 TI	348	static struct isa_driver snd_gusmax_driver = {
5e24c1c1 TI	349	.match = snd_gusmax_match,
654aa661	350	.probe = snd_gusmax_probe,
1bff292e	351	.remove = snd_gusmax_remove,
654aa661 TI	352	/* FIXME: suspend/resume */
654aa661 TI	353	.driver = {
83c51c0a	354	.name = DEV_NAME
654aa661 TI	355	},
	356	};
	357
a99e8c62	358	module_isa_driver(snd_gusmax_driver, SNDRV_CARDS);