sound/isa/azt2320.c - pub/scm/linux/kernel/git/joro/linux - Git at Google


 /*
     card-azt2320.c - driver for Aztech Systems AZT2320 based soundcards.
     Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>

     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.

     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

 /*
     This driver should provide support for most Aztech AZT2320 based cards.
     Several AZT2316 chips are also supported/tested, but autoprobe doesn't
     work: all module option have to be set.

     No docs available for us at Aztech headquarters !!!   Unbelievable ...
     No other help obtained.

     Thanks to Rainer Wiesner <rainer.wiesner@01019freenet.de> for the WSS
     activation method (full-duplex audio!).
 */

 #include <sound/driver.h>
 #include <asm/io.h>
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/time.h>
 #include <linux/wait.h>
 #ifndef LINUX_ISAPNP_H
 #include <linux/isapnp.h>
 #define isapnp_card pci_bus
 #define isapnp_dev pci_dev
 #endif
 #include <sound/core.h>
 #define SNDRV_GET_ID
 #include <sound/initval.h>
 #include <sound/cs4231.h>
 #include <sound/mpu401.h>
 #include <sound/opl3.h>

 #define chip_t cs4231_t

 EXPORT_NO_SYMBOLS;

 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
 MODULE_DESCRIPTION("Aztech Systems AZT2320");
 MODULE_LICENSE("GPL");
 MODULE_CLASSES("{sound}");
 MODULE_DEVICES("{{Aztech Systems,PRO16V},"
 		"{Aztech Systems,AZT2320},"
 		"{Aztech Systems,AZT3300},"
 		"{Aztech Systems,AZT2320},"
 		"{Aztech Systems,AZT3000}}");

 static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
 static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
 static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
 static long snd_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
 static long snd_wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
 static long snd_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
 static long snd_fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
 static int snd_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* Pnp setup */
 static int snd_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* Pnp setup */
 static int snd_dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* PnP setup */
 static int snd_dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* PnP setup */

 MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(snd_index, "Index value for azt2320 based soundcard.");
 MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC);
 MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
 MODULE_PARM_DESC(snd_id, "ID string for azt2320 based soundcard.");
 MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC);
 MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(snd_enable, "Enable azt2320 based soundcard.");
 MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC);
 MODULE_PARM(snd_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
 MODULE_PARM_DESC(snd_port, "Port # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_port, SNDRV_PORT12_DESC);
 MODULE_PARM(snd_wss_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
 MODULE_PARM_DESC(snd_wss_port, "WSS Port # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_wss_port, SNDRV_PORT12_DESC);
 MODULE_PARM(snd_mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
 MODULE_PARM_DESC(snd_mpu_port, "MPU-401 port # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_mpu_port, SNDRV_PORT12_DESC);
 MODULE_PARM(snd_fm_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
 MODULE_PARM_DESC(snd_fm_port, "FM port # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_fm_port, SNDRV_PORT12_DESC);
 MODULE_PARM(snd_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(snd_irq, "IRQ # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_irq, SNDRV_IRQ_DESC);
 MODULE_PARM(snd_mpu_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(snd_mpu_irq, "MPU-401 IRQ # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_mpu_irq, SNDRV_IRQ_DESC);
 MODULE_PARM(snd_dma1, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(snd_dma1, "1st DMA # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_dma1, SNDRV_DMA_DESC);
 MODULE_PARM(snd_dma2, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(snd_dma2, "2nd DMA # for azt2320 driver.");
 MODULE_PARM_SYNTAX(snd_dma2, SNDRV_DMA_DESC);

 struct snd_card_azt2320 {
 #ifdef __ISAPNP__
 	struct isapnp_dev *dev;
 	struct isapnp_dev *devmpu;
 #endif	/* __ISAPNP__ */
 };

 static snd_card_t *snd_azt2320_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;

 #ifdef __ISAPNP__

 static struct isapnp_card *snd_azt2320_isapnp_cards[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_PTR;
 static const struct isapnp_card_id *snd_azt2320_isapnp_id[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_PTR;

 #define ISAPNP_AZT2320(_va, _vb, _vc, _device, _audio, _mpu401) \
 	{ \
 		ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
 		devs : { ISAPNP_DEVICE_ID(_va, _vb, _vc, _audio), \
 			 ISAPNP_DEVICE_ID(_va, _vb, _vc, _mpu401), } \
 	}

 static struct isapnp_card_id snd_azt2320_pnpids[] __devinitdata = {
 	/* PRO16V */
 	ISAPNP_AZT2320('A','Z','T',0x1008,0x1008,0x2001),
 	/* --- */
 	ISAPNP_AZT2320('A','Z','T',0x2320,0x0001,0x0002),
 	/* Packard Bell Sound III 336 AM/SP */
 	ISAPNP_AZT2320('A','Z','T',0x3000,0x1003,0x2001),
 	/* AT3300 */
 	ISAPNP_AZT2320('A','Z','T',0x3002,0x1004,0x2001),
 	/* --- */
 	ISAPNP_AZT2320('A','Z','T',0x3005,0x1003,0x2001),
 	/* --- */
 	ISAPNP_AZT2320('A','Z','T',0x3011,0x1003,0x2001),
 	{ ISAPNP_CARD_END, }	/* end */
 };

 ISAPNP_CARD_TABLE(snd_azt2320_pnpids);

 #endif	/* __ISAPNP__ */

 #define	DRIVER_NAME	"snd-card-azt2320"


 #ifdef __ISAPNP__
 static int __init snd_card_azt2320_isapnp(int dev, struct snd_card_azt2320 *acard)
 {
 	const struct isapnp_card_id *id = snd_azt2320_isapnp_id[dev];
 	struct isapnp_card *card = snd_azt2320_isapnp_cards[dev];
 	struct isapnp_dev *pdev;

 	acard->dev = isapnp_find_dev(card, id->devs[0].vendor, id->devs[0].function, NULL);
 	if (acard->dev->active) {
 		acard->dev = NULL;
 		return -EBUSY;
 	}
 	acard->devmpu = isapnp_find_dev(card, id->devs[1].vendor, id->devs[1].function, NULL);
 	if (acard->devmpu->active) {
 		acard->dev = acard->devmpu = NULL;
 		return -EBUSY;
 	}

 	pdev = acard->dev;
 	if (pdev->prepare(pdev) < 0)
 		return -EAGAIN;

 	if (snd_port[dev] != SNDRV_AUTO_PORT)
 		isapnp_resource_change(&pdev->resource[0], snd_port[dev], 16);
 	if (snd_fm_port[dev] != SNDRV_AUTO_PORT)
 		isapnp_resource_change(&pdev->resource[1], snd_fm_port[dev], 4);
 	if (snd_wss_port[dev] != SNDRV_AUTO_PORT)
 		isapnp_resource_change(&pdev->resource[2], snd_wss_port[dev],
 			4);
 	if (snd_dma1[dev] != SNDRV_AUTO_DMA)
 		isapnp_resource_change(&pdev->dma_resource[0], snd_dma1[dev],
 			1);
 	if (snd_dma2[dev] != SNDRV_AUTO_DMA)
 		isapnp_resource_change(&pdev->dma_resource[1], snd_dma2[dev],
 			1);
 	if (snd_irq[dev] != SNDRV_AUTO_IRQ)
 		isapnp_resource_change(&pdev->irq_resource[0], snd_irq[dev], 1);

 	if (pdev->activate(pdev) < 0) {
 		snd_printk("AUDIO isapnp configure failure\n");
 		return -EBUSY;
 	}

 	snd_port[dev] = pdev->resource[0].start;
 	snd_fm_port[dev] = pdev->resource[1].start;
 	snd_wss_port[dev] = pdev->resource[2].start;
 	snd_dma1[dev] = pdev->dma_resource[0].start;
 	snd_dma2[dev] = pdev->dma_resource[1].start;
 	snd_irq[dev] = pdev->irq_resource[0].start;

 	pdev = acard->devmpu;
 	if (pdev == NULL || pdev->prepare(pdev) < 0) {
 		snd_mpu_port[dev] = -1;
 		return 0;
 	}

 	if (snd_mpu_port[dev] != SNDRV_AUTO_PORT)
 		isapnp_resource_change(&pdev->resource[0], snd_mpu_port[dev],
 			2);
 	if (snd_mpu_irq[dev] != SNDRV_AUTO_IRQ)
 		isapnp_resource_change(&pdev->irq_resource[0], snd_mpu_irq[dev],
 			1);

 	if (pdev->activate(pdev) < 0) {
 		/* not fatal error */
 		snd_printk("MPU-401 isapnp configure failure\n");
 		snd_mpu_port[dev] = -1;
 		acard->devmpu = NULL;
 	} else {
 		snd_mpu_port[dev] = pdev->resource[0].start;
 		snd_mpu_irq[dev] = pdev->irq_resource[0].start;
 	}

 	return 0;
 }

 static void snd_card_azt2320_deactivate(struct snd_card_azt2320 *acard)
 {
 	if (acard->dev)
 		acard->dev->deactivate(acard->dev);
 	if (acard->devmpu)
 		acard->devmpu->deactivate(acard->devmpu);
 }
 #endif	/* __ISAPNP__ */

 /* same of snd_sbdsp_command by Jaroslav Kysela */
 static int __init snd_card_azt2320_command(unsigned long port, unsigned char val)
 {
 	int i;
 	unsigned long limit;

 	limit = jiffies + HZ / 10;
 	for (i = 50000; i && (limit - jiffies) > 0; i--)
 		if (!(inb(port + 0x0c) & 0x80)) {
 			outb(val, port + 0x0c);
 			return 0;
 		}
 	return -EBUSY;
 }

 static int __init snd_card_azt2320_enable_wss(unsigned long port)
 {
 	int error;

 	if ((error = snd_card_azt2320_command(port, 0x09)))
 		return error;
 	if ((error = snd_card_azt2320_command(port, 0x00)))
 		return error;

 	mdelay(5);
 	return 0;
 }

 static void snd_card_azt2320_free(snd_card_t *card)
 {
 	struct snd_card_azt2320 *acard = (struct snd_card_azt2320 *)card->private_data;

 	if (acard) {
 #ifdef __ISAPNP__
 		snd_card_azt2320_deactivate(acard);
 #endif	/* __ISAPNP__ */
 	}
 }

 static int __init snd_card_azt2320_probe(int dev)
 {
 	int error;
 	snd_card_t *card;
 	struct snd_card_azt2320 *acard;
 	cs4231_t *chip;
 	opl3_t *opl3;

 	if ((card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE,
 				 sizeof(struct snd_card_azt2320))) == NULL)
 		return -ENOMEM;
 	acard = (struct snd_card_azt2320 *)card->private_data;
 	card->private_free = snd_card_azt2320_free;

 #ifdef __ISAPNP__
 	if ((error = snd_card_azt2320_isapnp(dev, acard))) {
 		snd_card_free(card);
 		return error;
 	}
 #endif	/* __ISAPNP__ */

 	if ((error = snd_card_azt2320_enable_wss(snd_port[dev]))) {
 		snd_card_free(card);
 		return error;
 	}

 	if ((error = snd_cs4231_create(card, snd_wss_port[dev], -1,
 				       snd_irq[dev],
 				       snd_dma1[dev],
 				       snd_dma2[dev],
 				       CS4231_HW_DETECT, 0, &chip)) < 0) {
 		snd_card_free(card);
 		return error;
 	}

 	if ((error = snd_cs4231_pcm(chip, 0, NULL)) < 0) {
 		snd_card_free(card);
 		return error;
 	}
 	if ((error = snd_cs4231_mixer(chip)) < 0) {
 		snd_card_free(card);
 		return error;
 	}
 	if ((error = snd_cs4231_timer(chip, 0, NULL)) < 0) {
 		snd_card_free(card);
 		return error;
 	}

 	if (snd_mpu_port[dev] > 0) {
 		if (snd_mpu401_uart_new(card, 0, MPU401_HW_AZT2320,
 				snd_mpu_port[dev], 0,
 				snd_mpu_irq[dev], SA_INTERRUPT,
 				NULL) < 0)
 			snd_printk("no MPU-401 device at 0x%lx\n",
 				snd_mpu_port[dev]);
 	}

 	if (snd_fm_port[dev] > 0) {
 		if (snd_opl3_create(card,
 				    snd_fm_port[dev], snd_fm_port[dev] + 2,
 				    OPL3_HW_AUTO, 0, &opl3) < 0) {
 			snd_printk("no OPL device at 0x%lx-0x%lx\n",
 				snd_fm_port[dev], snd_fm_port[dev] + 2);
 		} else {
 			if ((error = snd_opl3_timer_new(opl3, 1, 2)) < 0) {
 				snd_card_free(card);
 				return error;
 			}
 			if ((error = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
 				snd_card_free(card);
 				return error;
 			}
 		}
 	}

 	strcpy(card->driver, "AZT2320");
 	strcpy(card->shortname, "Aztech AZT2320");
 	sprintf(card->longname, "%s soundcard, WSS at 0x%lx, irq %i, dma %i&%i",
 		card->shortname, chip->port, snd_irq[dev], snd_dma1[dev], snd_dma2[dev]);

 	if ((error = snd_card_register(card)) < 0) {
 		snd_card_free(card);
 		return error;
 	}
 	snd_azt2320_cards[dev] = card;
 	return 0;
 }

 #ifdef __ISAPNP__
 static int __init snd_azt2320_isapnp_detect(struct isapnp_card *card,
                                             const struct isapnp_card_id *id)
 {
 	static int dev = 0;
 	int res;

 	for ( ; dev < SNDRV_CARDS; dev++) {
 		if (!snd_enable[dev])
 			continue;
 		snd_azt2320_isapnp_cards[dev] = card;
 		snd_azt2320_isapnp_id[dev] = id;
                 res = snd_card_azt2320_probe(dev);
 		if (res < 0)
 			return res;
 		dev++;
 		return 0;
 	}
         return -ENODEV;
 }
 #endif

 static int __init alsa_card_azt2320_init(void)
 {
 	int cards = 0;

 #ifdef __ISAPNP__
 	cards += isapnp_probe_cards(snd_azt2320_pnpids, snd_azt2320_isapnp_detect);
 #else
 	snd_printk("you have to enable ISA PnP support.\n");
 #endif
 #ifdef MODULE
 	if (!cards)
 		snd_printk("no AZT2320 based soundcards found\n");
 #endif
 	return cards ? 0 : -ENODEV;
 }

 static void __exit alsa_card_azt2320_exit(void)
 {
 	int dev;

 	for (dev = 0; dev < SNDRV_CARDS; dev++)
 		snd_card_free(snd_azt2320_cards[dev]);
 }

 module_init(alsa_card_azt2320_init)
 module_exit(alsa_card_azt2320_exit)

 #ifndef MODULE

 /* format is: snd-azt2320=snd_enable,snd_index,snd_id,snd_port,
 			  snd_wss_port,snd_mpu_port,snd_fm_port,
 			  snd_irq,snd_mpu_irq,snd_dma1,snd_dma2 */

 static int __init alsa_card_azt2320_setup(char *str)
 {
 	static unsigned __initdata nr_dev = 0;

 	if (nr_dev >= SNDRV_CARDS)
 		return 0;
 	(void)(get_option(&str,&snd_enable[nr_dev]) == 2 &&
 	       get_option(&str,&snd_index[nr_dev]) == 2 &&
 	       get_id(&str,&snd_id[nr_dev]) == 2 &&
 	       get_option(&str,(int *)&snd_port[nr_dev]) == 2 &&
 	       get_option(&str,(int *)&snd_wss_port[nr_dev]) == 2 &&
 	       get_option(&str,(int *)&snd_mpu_port[nr_dev]) == 2 &&
 	       get_option(&str,&snd_irq[nr_dev]) == 2 &&
 	       get_option(&str,&snd_mpu_irq[nr_dev]) == 2 &&
 	       get_option(&str,&snd_dma1[nr_dev]) == 2 &&
 	       get_option(&str,&snd_dma2[nr_dev]) == 2);
 	nr_dev++;
 	return 1;
 }

 __setup("snd-azt2320=", alsa_card_azt2320_setup);

 #endif /* ifndef MODULE */

	/*
	card-azt2320.c - driver for Aztech Systems AZT2320 based soundcards.
	Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/

	/*
	This driver should provide support for most Aztech AZT2320 based cards.
	Several AZT2316 chips are also supported/tested, but autoprobe doesn't
	work: all module option have to be set.

	No docs available for us at Aztech headquarters !!! Unbelievable ...
	No other help obtained.

	Thanks to Rainer Wiesner <rainer.wiesner@01019freenet.de> for the WSS
	activation method (full-duplex audio!).
	*/

	#include <sound/driver.h>
	#include <asm/io.h>
	#include <linux/delay.h>
	#include <linux/init.h>
	#include <linux/time.h>
	#include <linux/wait.h>
	#ifndef LINUX_ISAPNP_H
	#include <linux/isapnp.h>
	#define isapnp_card pci_bus
	#define isapnp_dev pci_dev
	#endif
	#include <sound/core.h>
	#define SNDRV_GET_ID
	#include <sound/initval.h>
	#include <sound/cs4231.h>
	#include <sound/mpu401.h>
	#include <sound/opl3.h>

	#define chip_t cs4231_t

	EXPORT_NO_SYMBOLS;

	MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
	MODULE_DESCRIPTION("Aztech Systems AZT2320");
	MODULE_LICENSE("GPL");
	MODULE_CLASSES("{sound}");
	MODULE_DEVICES("{{Aztech Systems,PRO16V},"
	"{Aztech Systems,AZT2320},"
	"{Aztech Systems,AZT3300},"
	"{Aztech Systems,AZT2320},"
	"{Aztech Systems,AZT3000}}");

	static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
	static char snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; / ID for this card */
	static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
	static long snd_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
	static long snd_wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
	static long snd_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
	static long snd_fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
	static int snd_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* Pnp setup */
	static int snd_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* Pnp setup */
	static int snd_dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* PnP setup */
	static int snd_dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* PnP setup */

	MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
	MODULE_PARM_DESC(snd_index, "Index value for azt2320 based soundcard.");
	MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC);
	MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
	MODULE_PARM_DESC(snd_id, "ID string for azt2320 based soundcard.");
	MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC);
	MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
	MODULE_PARM_DESC(snd_enable, "Enable azt2320 based soundcard.");
	MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC);
	MODULE_PARM(snd_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
	MODULE_PARM_DESC(snd_port, "Port # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_port, SNDRV_PORT12_DESC);
	MODULE_PARM(snd_wss_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
	MODULE_PARM_DESC(snd_wss_port, "WSS Port # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_wss_port, SNDRV_PORT12_DESC);
	MODULE_PARM(snd_mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
	MODULE_PARM_DESC(snd_mpu_port, "MPU-401 port # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_mpu_port, SNDRV_PORT12_DESC);
	MODULE_PARM(snd_fm_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
	MODULE_PARM_DESC(snd_fm_port, "FM port # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_fm_port, SNDRV_PORT12_DESC);
	MODULE_PARM(snd_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
	MODULE_PARM_DESC(snd_irq, "IRQ # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_irq, SNDRV_IRQ_DESC);
	MODULE_PARM(snd_mpu_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
	MODULE_PARM_DESC(snd_mpu_irq, "MPU-401 IRQ # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_mpu_irq, SNDRV_IRQ_DESC);
	MODULE_PARM(snd_dma1, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
	MODULE_PARM_DESC(snd_dma1, "1st DMA # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_dma1, SNDRV_DMA_DESC);
	MODULE_PARM(snd_dma2, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
	MODULE_PARM_DESC(snd_dma2, "2nd DMA # for azt2320 driver.");
	MODULE_PARM_SYNTAX(snd_dma2, SNDRV_DMA_DESC);

	struct snd_card_azt2320 {
	#ifdef __ISAPNP__
	struct isapnp_dev *dev;
	struct isapnp_dev *devmpu;
	#endif /* __ISAPNP__ */
	};

	static snd_card_t *snd_azt2320_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;

	#ifdef __ISAPNP__

	static struct isapnp_card *snd_azt2320_isapnp_cards[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_PTR;
	static const struct isapnp_card_id *snd_azt2320_isapnp_id[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_PTR;

	#define ISAPNP_AZT2320(_va, _vb, _vc, _device, _audio, _mpu401) \
	{ \
	ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
	devs : { ISAPNP_DEVICE_ID(_va, _vb, _vc, _audio), \
	ISAPNP_DEVICE_ID(_va, _vb, _vc, _mpu401), } \
	}

	static struct isapnp_card_id snd_azt2320_pnpids[] __devinitdata = {
	/* PRO16V */
	ISAPNP_AZT2320('A','Z','T',0x1008,0x1008,0x2001),
	/* --- */
	ISAPNP_AZT2320('A','Z','T',0x2320,0x0001,0x0002),
	/* Packard Bell Sound III 336 AM/SP */
	ISAPNP_AZT2320('A','Z','T',0x3000,0x1003,0x2001),
	/* AT3300 */
	ISAPNP_AZT2320('A','Z','T',0x3002,0x1004,0x2001),
	/* --- */
	ISAPNP_AZT2320('A','Z','T',0x3005,0x1003,0x2001),
	/* --- */
	ISAPNP_AZT2320('A','Z','T',0x3011,0x1003,0x2001),
	{ ISAPNP_CARD_END, } /* end */
	};

	ISAPNP_CARD_TABLE(snd_azt2320_pnpids);

	#endif /* __ISAPNP__ */

	#define DRIVER_NAME "snd-card-azt2320"


	#ifdef __ISAPNP__
	static int __init snd_card_azt2320_isapnp(int dev, struct snd_card_azt2320 *acard)
	{
	const struct isapnp_card_id *id = snd_azt2320_isapnp_id[dev];
	struct isapnp_card *card = snd_azt2320_isapnp_cards[dev];
	struct isapnp_dev *pdev;

	acard->dev = isapnp_find_dev(card, id->devs[0].vendor, id->devs[0].function, NULL);
	if (acard->dev->active) {
	acard->dev = NULL;
	return -EBUSY;
	}
	acard->devmpu = isapnp_find_dev(card, id->devs[1].vendor, id->devs[1].function, NULL);
	if (acard->devmpu->active) {
	acard->dev = acard->devmpu = NULL;
	return -EBUSY;
	}

	pdev = acard->dev;
	if (pdev->prepare(pdev) < 0)
	return -EAGAIN;

	if (snd_port[dev] != SNDRV_AUTO_PORT)
	isapnp_resource_change(&pdev->resource[0], snd_port[dev], 16);
	if (snd_fm_port[dev] != SNDRV_AUTO_PORT)
	isapnp_resource_change(&pdev->resource[1], snd_fm_port[dev], 4);
	if (snd_wss_port[dev] != SNDRV_AUTO_PORT)
	isapnp_resource_change(&pdev->resource[2], snd_wss_port[dev],
	4);
	if (snd_dma1[dev] != SNDRV_AUTO_DMA)
	isapnp_resource_change(&pdev->dma_resource[0], snd_dma1[dev],
	1);
	if (snd_dma2[dev] != SNDRV_AUTO_DMA)
	isapnp_resource_change(&pdev->dma_resource[1], snd_dma2[dev],
	1);
	if (snd_irq[dev] != SNDRV_AUTO_IRQ)
	isapnp_resource_change(&pdev->irq_resource[0], snd_irq[dev], 1);

	if (pdev->activate(pdev) < 0) {
	snd_printk("AUDIO isapnp configure failure\n");
	return -EBUSY;
	}

	snd_port[dev] = pdev->resource[0].start;
	snd_fm_port[dev] = pdev->resource[1].start;
	snd_wss_port[dev] = pdev->resource[2].start;
	snd_dma1[dev] = pdev->dma_resource[0].start;
	snd_dma2[dev] = pdev->dma_resource[1].start;
	snd_irq[dev] = pdev->irq_resource[0].start;

	pdev = acard->devmpu;
	if (pdev == NULL \|\| pdev->prepare(pdev) < 0) {
	snd_mpu_port[dev] = -1;
	return 0;
	}

	if (snd_mpu_port[dev] != SNDRV_AUTO_PORT)
	isapnp_resource_change(&pdev->resource[0], snd_mpu_port[dev],
	2);
	if (snd_mpu_irq[dev] != SNDRV_AUTO_IRQ)
	isapnp_resource_change(&pdev->irq_resource[0], snd_mpu_irq[dev],
	1);

	if (pdev->activate(pdev) < 0) {
	/* not fatal error */
	snd_printk("MPU-401 isapnp configure failure\n");
	snd_mpu_port[dev] = -1;
	acard->devmpu = NULL;
	} else {
	snd_mpu_port[dev] = pdev->resource[0].start;
	snd_mpu_irq[dev] = pdev->irq_resource[0].start;
	}

	return 0;
	}

	static void snd_card_azt2320_deactivate(struct snd_card_azt2320 *acard)
	{
	if (acard->dev)
	acard->dev->deactivate(acard->dev);
	if (acard->devmpu)
	acard->devmpu->deactivate(acard->devmpu);
	}
	#endif /* __ISAPNP__ */

	/* same of snd_sbdsp_command by Jaroslav Kysela */
	static int __init snd_card_azt2320_command(unsigned long port, unsigned char val)
	{
	int i;
	unsigned long limit;

	limit = jiffies + HZ / 10;
	for (i = 50000; i && (limit - jiffies) > 0; i--)
	if (!(inb(port + 0x0c) & 0x80)) {
	outb(val, port + 0x0c);
	return 0;
	}
	return -EBUSY;
	}

	static int __init snd_card_azt2320_enable_wss(unsigned long port)
	{
	int error;

	if ((error = snd_card_azt2320_command(port, 0x09)))
	return error;
	if ((error = snd_card_azt2320_command(port, 0x00)))
	return error;

	mdelay(5);
	return 0;
	}

	static void snd_card_azt2320_free(snd_card_t *card)
	{
	struct snd_card_azt2320 acard = (struct snd_card_azt2320 )card->private_data;

	if (acard) {
	#ifdef __ISAPNP__
	snd_card_azt2320_deactivate(acard);
	#endif /* __ISAPNP__ */
	}
	}

	static int __init snd_card_azt2320_probe(int dev)
	{
	int error;
	snd_card_t *card;
	struct snd_card_azt2320 *acard;
	cs4231_t *chip;
	opl3_t *opl3;

	if ((card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE,
	sizeof(struct snd_card_azt2320))) == NULL)
	return -ENOMEM;
	acard = (struct snd_card_azt2320 *)card->private_data;
	card->private_free = snd_card_azt2320_free;

	#ifdef __ISAPNP__
	if ((error = snd_card_azt2320_isapnp(dev, acard))) {
	snd_card_free(card);
	return error;
	}
	#endif /* __ISAPNP__ */

	if ((error = snd_card_azt2320_enable_wss(snd_port[dev]))) {
	snd_card_free(card);
	return error;
	}

	if ((error = snd_cs4231_create(card, snd_wss_port[dev], -1,
	snd_irq[dev],
	snd_dma1[dev],
	snd_dma2[dev],
	CS4231_HW_DETECT, 0, &chip)) < 0) {
	snd_card_free(card);
	return error;
	}

	if ((error = snd_cs4231_pcm(chip, 0, NULL)) < 0) {
	snd_card_free(card);
	return error;
	}
	if ((error = snd_cs4231_mixer(chip)) < 0) {
	snd_card_free(card);
	return error;
	}
	if ((error = snd_cs4231_timer(chip, 0, NULL)) < 0) {
	snd_card_free(card);
	return error;
	}

	if (snd_mpu_port[dev] > 0) {
	if (snd_mpu401_uart_new(card, 0, MPU401_HW_AZT2320,
	snd_mpu_port[dev], 0,
	snd_mpu_irq[dev], SA_INTERRUPT,
	NULL) < 0)
	snd_printk("no MPU-401 device at 0x%lx\n",
	snd_mpu_port[dev]);
	}

	if (snd_fm_port[dev] > 0) {
	if (snd_opl3_create(card,
	snd_fm_port[dev], snd_fm_port[dev] + 2,
	OPL3_HW_AUTO, 0, &opl3) < 0) {
	snd_printk("no OPL device at 0x%lx-0x%lx\n",
	snd_fm_port[dev], snd_fm_port[dev] + 2);
	} else {
	if ((error = snd_opl3_timer_new(opl3, 1, 2)) < 0) {
	snd_card_free(card);
	return error;
	}
	if ((error = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
	snd_card_free(card);
	return error;
	}
	}
	}

	strcpy(card->driver, "AZT2320");
	strcpy(card->shortname, "Aztech AZT2320");
	sprintf(card->longname, "%s soundcard, WSS at 0x%lx, irq %i, dma %i&%i",
	card->shortname, chip->port, snd_irq[dev], snd_dma1[dev], snd_dma2[dev]);

	if ((error = snd_card_register(card)) < 0) {
	snd_card_free(card);
	return error;
	}
	snd_azt2320_cards[dev] = card;
	return 0;
	}

	#ifdef __ISAPNP__
	static int __init snd_azt2320_isapnp_detect(struct isapnp_card *card,
	const struct isapnp_card_id *id)
	{
	static int dev = 0;
	int res;

	for ( ; dev < SNDRV_CARDS; dev++) {
	if (!snd_enable[dev])
	continue;
	snd_azt2320_isapnp_cards[dev] = card;
	snd_azt2320_isapnp_id[dev] = id;
	res = snd_card_azt2320_probe(dev);
	if (res < 0)
	return res;
	dev++;
	return 0;
	}
	return -ENODEV;
	}
	#endif

	static int __init alsa_card_azt2320_init(void)
	{
	int cards = 0;

	#ifdef __ISAPNP__
	cards += isapnp_probe_cards(snd_azt2320_pnpids, snd_azt2320_isapnp_detect);
	#else
	snd_printk("you have to enable ISA PnP support.\n");
	#endif
	#ifdef MODULE
	if (!cards)
	snd_printk("no AZT2320 based soundcards found\n");
	#endif
	return cards ? 0 : -ENODEV;
	}

	static void __exit alsa_card_azt2320_exit(void)
	{
	int dev;

	for (dev = 0; dev < SNDRV_CARDS; dev++)
	snd_card_free(snd_azt2320_cards[dev]);
	}

	module_init(alsa_card_azt2320_init)
	module_exit(alsa_card_azt2320_exit)

	#ifndef MODULE

	/* format is: snd-azt2320=snd_enable,snd_index,snd_id,snd_port,
	snd_wss_port,snd_mpu_port,snd_fm_port,
	snd_irq,snd_mpu_irq,snd_dma1,snd_dma2 */

	static int __init alsa_card_azt2320_setup(char *str)
	{
	static unsigned __initdata nr_dev = 0;

	if (nr_dev >= SNDRV_CARDS)
	return 0;
	(void)(get_option(&str,&snd_enable[nr_dev]) == 2 &&
	get_option(&str,&snd_index[nr_dev]) == 2 &&
	get_id(&str,&snd_id[nr_dev]) == 2 &&
	get_option(&str,(int *)&snd_port[nr_dev]) == 2 &&
	get_option(&str,(int *)&snd_wss_port[nr_dev]) == 2 &&
	get_option(&str,(int *)&snd_mpu_port[nr_dev]) == 2 &&
	get_option(&str,&snd_irq[nr_dev]) == 2 &&
	get_option(&str,&snd_mpu_irq[nr_dev]) == 2 &&
	get_option(&str,&snd_dma1[nr_dev]) == 2 &&
	get_option(&str,&snd_dma2[nr_dev]) == 2);
	nr_dev++;
	return 1;
	}

	__setup("snd-azt2320=", alsa_card_azt2320_setup);

	#endif /* ifndef MODULE */