sound/isa/galaxy/galaxy.c - kernel/msm-4.9 - Gitiles

 /*
  * Aztech AZT1605/AZT2316 Driver
  * Copyright (C) 2007,2010  Rene Herman
  *
  * 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, see <http://www.gnu.org/licenses/>.
  *
  */

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/isa.h>
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <asm/processor.h>
 #include <sound/core.h>
 #include <sound/initval.h>
 #include <sound/wss.h>
 #include <sound/mpu401.h>
 #include <sound/opl3.h>

 MODULE_DESCRIPTION(CRD_NAME);
 MODULE_AUTHOR("Rene Herman");
 MODULE_LICENSE("GPL");

 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;

 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
 module_param_array(id, charp, NULL, 0444);
 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
 module_param_array(enable, bool, NULL, 0444);
 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");

 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;

 module_param_array(port, long, NULL, 0444);
 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 module_param_array(wss_port, long, NULL, 0444);
 MODULE_PARM_DESC(wss_port, "WSS port # for " CRD_NAME " driver.");
 module_param_array(mpu_port, long, NULL, 0444);
 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
 module_param_array(fm_port, long, NULL, 0444);
 MODULE_PARM_DESC(fm_port, "FM port # for " CRD_NAME " driver.");
 module_param_array(irq, int, NULL, 0444);
 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
 module_param_array(mpu_irq, int, NULL, 0444);
 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
 module_param_array(dma1, int, NULL, 0444);
 MODULE_PARM_DESC(dma1, "Playback DMA # for " CRD_NAME " driver.");
 module_param_array(dma2, int, NULL, 0444);
 MODULE_PARM_DESC(dma2, "Capture DMA # for " CRD_NAME " driver.");

 /*
  * Generic SB DSP support routines
  */

 #define DSP_PORT_RESET		0x6
 #define DSP_PORT_READ		0xa
 #define DSP_PORT_COMMAND	0xc
 #define DSP_PORT_STATUS		0xc
 #define DSP_PORT_DATA_AVAIL	0xe

 #define DSP_SIGNATURE		0xaa

 #define DSP_COMMAND_GET_VERSION	0xe1

 static int dsp_get_byte(void __iomem *port, u8 *val)
 {
 	int loops = 1000;

 	while (!(ioread8(port + DSP_PORT_DATA_AVAIL) & 0x80)) {
 		if (!loops--)
 			return -EIO;
 		cpu_relax();
 	}
 	*val = ioread8(port + DSP_PORT_READ);
 	return 0;
 }

 static int dsp_reset(void __iomem *port)
 {
 	u8 val;

 	iowrite8(1, port + DSP_PORT_RESET);
 	udelay(10);
 	iowrite8(0, port + DSP_PORT_RESET);

 	if (dsp_get_byte(port, &val) < 0 || val != DSP_SIGNATURE)
 		return -ENODEV;

 	return 0;
 }

 static int dsp_command(void __iomem *port, u8 cmd)
 {
 	int loops = 1000;

 	while (ioread8(port + DSP_PORT_STATUS) & 0x80) {
 		if (!loops--)
 			return -EIO;
 		cpu_relax();
 	}
 	iowrite8(cmd, port + DSP_PORT_COMMAND);
 	return 0;
 }

 static int dsp_get_version(void __iomem *port, u8 *major, u8 *minor)
 {
 	int err;

 	err = dsp_command(port, DSP_COMMAND_GET_VERSION);
 	if (err < 0)
 		return err;

 	err = dsp_get_byte(port, major);
 	if (err < 0)
 		return err;

 	err = dsp_get_byte(port, minor);
 	if (err < 0)
 		return err;

 	return 0;
 }

 /*
  * Generic WSS support routines
  */

 #define WSS_CONFIG_DMA_0	(1 << 0)
 #define WSS_CONFIG_DMA_1	(2 << 0)
 #define WSS_CONFIG_DMA_3	(3 << 0)
 #define WSS_CONFIG_DUPLEX	(1 << 2)
 #define WSS_CONFIG_IRQ_7	(1 << 3)
 #define WSS_CONFIG_IRQ_9	(2 << 3)
 #define WSS_CONFIG_IRQ_10	(3 << 3)
 #define WSS_CONFIG_IRQ_11	(4 << 3)

 #define WSS_PORT_CONFIG		0
 #define WSS_PORT_SIGNATURE	3

 #define WSS_SIGNATURE		4

 static int wss_detect(void __iomem *wss_port)
 {
 	if ((ioread8(wss_port + WSS_PORT_SIGNATURE) & 0x3f) != WSS_SIGNATURE)
 		return -ENODEV;

 	return 0;
 }

 static void wss_set_config(void __iomem *wss_port, u8 wss_config)
 {
 	iowrite8(wss_config, wss_port + WSS_PORT_CONFIG);
 }

 /*
  * Aztech Sound Galaxy specifics
  */

 #define GALAXY_PORT_CONFIG	1024
 #define CONFIG_PORT_SET		4

 #define DSP_COMMAND_GALAXY_8	8
 #define GALAXY_COMMAND_GET_TYPE	5

 #define DSP_COMMAND_GALAXY_9	9
 #define GALAXY_COMMAND_WSSMODE	0
 #define GALAXY_COMMAND_SB8MODE	1

 #define GALAXY_MODE_WSS		GALAXY_COMMAND_WSSMODE
 #define GALAXY_MODE_SB8		GALAXY_COMMAND_SB8MODE

 struct snd_galaxy {
 	void __iomem *port;
 	void __iomem *config_port;
 	void __iomem *wss_port;
 	u32 config;
 	struct resource *res_port;
 	struct resource *res_config_port;
 	struct resource *res_wss_port;
 };

 static u32 config[SNDRV_CARDS];
 static u8 wss_config[SNDRV_CARDS];

 static int snd_galaxy_match(struct device *dev, unsigned int n)
 {
 	if (!enable[n])
 		return 0;

 	switch (port[n]) {
 	case SNDRV_AUTO_PORT:
 		dev_err(dev, "please specify port\n");
 		return 0;
 	case 0x220:
 		config[n] |= GALAXY_CONFIG_SBA_220;
 		break;
 	case 0x240:
 		config[n] |= GALAXY_CONFIG_SBA_240;
 		break;
 	case 0x260:
 		config[n] |= GALAXY_CONFIG_SBA_260;
 		break;
 	case 0x280:
 		config[n] |= GALAXY_CONFIG_SBA_280;
 		break;
 	default:
 		dev_err(dev, "invalid port %#lx\n", port[n]);
 		return 0;
 	}

 	switch (wss_port[n]) {
 	case SNDRV_AUTO_PORT:
 		dev_err(dev,  "please specify wss_port\n");
 		return 0;
 	case 0x530:
 		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_530;
 		break;
 	case 0x604:
 		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_604;
 		break;
 	case 0xe80:
 		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_E80;
 		break;
 	case 0xf40:
 		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_F40;
 		break;
 	default:
 		dev_err(dev, "invalid WSS port %#lx\n", wss_port[n]);
 		return 0;
 	}

 	switch (irq[n]) {
 	case SNDRV_AUTO_IRQ:
 		dev_err(dev,  "please specify irq\n");
 		return 0;
 	case 7:
 		wss_config[n] |= WSS_CONFIG_IRQ_7;
 		break;
 	case 2:
 		irq[n] = 9;
 	case 9:
 		wss_config[n] |= WSS_CONFIG_IRQ_9;
 		break;
 	case 10:
 		wss_config[n] |= WSS_CONFIG_IRQ_10;
 		break;
 	case 11:
 		wss_config[n] |= WSS_CONFIG_IRQ_11;
 		break;
 	default:
 		dev_err(dev, "invalid IRQ %d\n", irq[n]);
 		return 0;
 	}

 	switch (dma1[n]) {
 	case SNDRV_AUTO_DMA:
 		dev_err(dev,  "please specify dma1\n");
 		return 0;
 	case 0:
 		wss_config[n] |= WSS_CONFIG_DMA_0;
 		break;
 	case 1:
 		wss_config[n] |= WSS_CONFIG_DMA_1;
 		break;
 	case 3:
 		wss_config[n] |= WSS_CONFIG_DMA_3;
 		break;
 	default:
 		dev_err(dev, "invalid playback DMA %d\n", dma1[n]);
 		return 0;
 	}

 	if (dma2[n] == SNDRV_AUTO_DMA || dma2[n] == dma1[n]) {
 		dma2[n] = -1;
 		goto mpu;
 	}

 	wss_config[n] |= WSS_CONFIG_DUPLEX;
 	switch (dma2[n]) {
 	case 0:
 		break;
 	case 1:
 		if (dma1[n] == 0)
 			break;
 	default:
 		dev_err(dev, "invalid capture DMA %d\n", dma2[n]);
 		return 0;
 	}

 mpu:
 	switch (mpu_port[n]) {
 	case SNDRV_AUTO_PORT:
 		dev_warn(dev, "mpu_port not specified; not using MPU-401\n");
 		mpu_port[n] = -1;
 		goto fm;
 	case 0x300:
 		config[n] |= GALAXY_CONFIG_MPU_ENABLE | GALAXY_CONFIG_MPUA_300;
 		break;
 	case 0x330:
 		config[n] |= GALAXY_CONFIG_MPU_ENABLE | GALAXY_CONFIG_MPUA_330;
 		break;
 	default:
 		dev_err(dev, "invalid MPU port %#lx\n", mpu_port[n]);
 		return 0;
 	}

 	switch (mpu_irq[n]) {
 	case SNDRV_AUTO_IRQ:
 		dev_warn(dev, "mpu_irq not specified: using polling mode\n");
 		mpu_irq[n] = -1;
 		break;
 	case 2:
 		mpu_irq[n] = 9;
 	case 9:
 		config[n] |= GALAXY_CONFIG_MPUIRQ_2;
 		break;
 #ifdef AZT1605
 	case 3:
 		config[n] |= GALAXY_CONFIG_MPUIRQ_3;
 		break;
 #endif
 	case 5:
 		config[n] |= GALAXY_CONFIG_MPUIRQ_5;
 		break;
 	case 7:
 		config[n] |= GALAXY_CONFIG_MPUIRQ_7;
 		break;
 #ifdef AZT2316
 	case 10:
 		config[n] |= GALAXY_CONFIG_MPUIRQ_10;
 		break;
 #endif
 	default:
 		dev_err(dev, "invalid MPU IRQ %d\n", mpu_irq[n]);
 		return 0;
 	}

 	if (mpu_irq[n] == irq[n]) {
 		dev_err(dev, "cannot share IRQ between WSS and MPU-401\n");
 		return 0;
 	}

 fm:
 	switch (fm_port[n]) {
 	case SNDRV_AUTO_PORT:
 		dev_warn(dev, "fm_port not specified: not using OPL3\n");
 		fm_port[n] = -1;
 		break;
 	case 0x388:
 		break;
 	default:
 		dev_err(dev, "illegal FM port %#lx\n", fm_port[n]);
 		return 0;
 	}

 	config[n] |= GALAXY_CONFIG_GAME_ENABLE;
 	return 1;
 }

 static int galaxy_init(struct snd_galaxy *galaxy, u8 *type)
 {
 	u8 major;
 	u8 minor;
 	int err;

 	err = dsp_reset(galaxy->port);
 	if (err < 0)
 		return err;

 	err = dsp_get_version(galaxy->port, &major, &minor);
 	if (err < 0)
 		return err;

 	if (major != GALAXY_DSP_MAJOR || minor != GALAXY_DSP_MINOR)
 		return -ENODEV;

 	err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_8);
 	if (err < 0)
 		return err;

 	err = dsp_command(galaxy->port, GALAXY_COMMAND_GET_TYPE);
 	if (err < 0)
 		return err;

 	err = dsp_get_byte(galaxy->port, type);
 	if (err < 0)
 		return err;

 	return 0;
 }

 static int galaxy_set_mode(struct snd_galaxy *galaxy, u8 mode)
 {
 	int err;

 	err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_9);
 	if (err < 0)
 		return err;

 	err = dsp_command(galaxy->port, mode);
 	if (err < 0)
 		return err;

 #ifdef AZT1605
 	/*
 	 * Needed for MPU IRQ on AZT1605, but AZT2316 loses WSS again
 	 */
 	err = dsp_reset(galaxy->port);
 	if (err < 0)
 		return err;
 #endif

 	return 0;
 }

 static void galaxy_set_config(struct snd_galaxy *galaxy, u32 config)
 {
 	u8 tmp = ioread8(galaxy->config_port + CONFIG_PORT_SET);
 	int i;

 	iowrite8(tmp | 0x80, galaxy->config_port + CONFIG_PORT_SET);
 	for (i = 0; i < GALAXY_CONFIG_SIZE; i++) {
 		iowrite8(config, galaxy->config_port + i);
 		config >>= 8;
 	}
 	iowrite8(tmp & 0x7f, galaxy->config_port + CONFIG_PORT_SET);
 	msleep(10);
 }

 static void galaxy_config(struct snd_galaxy *galaxy, u32 config)
 {
 	int i;

 	for (i = GALAXY_CONFIG_SIZE; i; i--) {
 		u8 tmp = ioread8(galaxy->config_port + i - 1);
 		galaxy->config = (galaxy->config << 8) | tmp;
 	}
 	config |= galaxy->config & GALAXY_CONFIG_MASK;
 	galaxy_set_config(galaxy, config);
 }

 static int galaxy_wss_config(struct snd_galaxy *galaxy, u8 wss_config)
 {
 	int err;

 	err = wss_detect(galaxy->wss_port);
 	if (err < 0)
 		return err;

 	wss_set_config(galaxy->wss_port, wss_config);

 	err = galaxy_set_mode(galaxy, GALAXY_MODE_WSS);
 	if (err < 0)
 		return err;

 	return 0;
 }

 static void snd_galaxy_free(struct snd_card *card)
 {
 	struct snd_galaxy *galaxy = card->private_data;

 	if (galaxy->wss_port) {
 		wss_set_config(galaxy->wss_port, 0);
 		ioport_unmap(galaxy->wss_port);
 		release_and_free_resource(galaxy->res_wss_port);
 	}
 	if (galaxy->config_port) {
 		galaxy_set_config(galaxy, galaxy->config);
 		ioport_unmap(galaxy->config_port);
 		release_and_free_resource(galaxy->res_config_port);
 	}
 	if (galaxy->port) {
 		ioport_unmap(galaxy->port);
 		release_and_free_resource(galaxy->res_port);
 	}
 }

 static int snd_galaxy_probe(struct device *dev, unsigned int n)
 {
 	struct snd_galaxy *galaxy;
 	struct snd_wss *chip;
 	struct snd_card *card;
 	u8 type;
 	int err;

 	err = snd_card_create(index[n], id[n], THIS_MODULE, sizeof *galaxy,
 			      &card);
 	if (err < 0)
 		return err;

 	snd_card_set_dev(card, dev);

 	card->private_free = snd_galaxy_free;
 	galaxy = card->private_data;

 	galaxy->res_port = request_region(port[n], 16, DRV_NAME);
 	if (!galaxy->res_port) {
 		dev_err(dev, "could not grab ports %#lx-%#lx\n", port[n],
 			port[n] + 15);
 		err = -EBUSY;
 		goto error;
 	}
 	galaxy->port = ioport_map(port[n], 16);

 	err = galaxy_init(galaxy, &type);
 	if (err < 0) {
 		dev_err(dev, "did not find a Sound Galaxy at %#lx\n", port[n]);
 		goto error;
 	}
 	dev_info(dev, "Sound Galaxy (type %d) found at %#lx\n", type, port[n]);

 	galaxy->res_config_port = request_region(port[n] + GALAXY_PORT_CONFIG,
 						 16, DRV_NAME);
 	if (!galaxy->res_config_port) {
 		dev_err(dev, "could not grab ports %#lx-%#lx\n",
 			port[n] + GALAXY_PORT_CONFIG,
 			port[n] + GALAXY_PORT_CONFIG + 15);
 		err = -EBUSY;
 		goto error;
 	}
 	galaxy->config_port = ioport_map(port[n] + GALAXY_PORT_CONFIG, 16);

 	galaxy_config(galaxy, config[n]);

 	galaxy->res_wss_port = request_region(wss_port[n], 4, DRV_NAME);
 	if (!galaxy->res_wss_port)  {
 		dev_err(dev, "could not grab ports %#lx-%#lx\n", wss_port[n],
 			wss_port[n] + 3);
 		err = -EBUSY;
 		goto error;
 	}
 	galaxy->wss_port = ioport_map(wss_port[n], 4);

 	err = galaxy_wss_config(galaxy, wss_config[n]);
 	if (err < 0) {
 		dev_err(dev, "could not configure WSS\n");
 		goto error;
 	}

 	strcpy(card->driver, DRV_NAME);
 	strcpy(card->shortname, DRV_NAME);
 	sprintf(card->longname, "%s at %#lx/%#lx, irq %d, dma %d/%d",
 		card->shortname, port[n], wss_port[n], irq[n], dma1[n],
 		dma2[n]);

 	err = snd_wss_create(card, wss_port[n] + 4, -1, irq[n], dma1[n],
 			     dma2[n], WSS_HW_DETECT, 0, &chip);
 	if (err < 0)
 		goto error;

 	err = snd_wss_pcm(chip, 0, NULL);
 	if (err < 0)
 		goto error;

 	err = snd_wss_mixer(chip);
 	if (err < 0)
 		goto error;

 	err = snd_wss_timer(chip, 0, NULL);
 	if (err < 0)
 		goto error;

 	if (mpu_port[n] >= 0) {
 		err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
 					  mpu_port[n], 0, mpu_irq[n], NULL);
 		if (err < 0)
 			goto error;
 	}

 	if (fm_port[n] >= 0) {
 		struct snd_opl3 *opl3;

 		err = snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
 				      OPL3_HW_AUTO, 0, &opl3);
 		if (err < 0) {
 			dev_err(dev, "no OPL device at %#lx\n", fm_port[n]);
 			goto error;
 		}
 		err = snd_opl3_timer_new(opl3, 1, 2);
 		if (err < 0)
 			goto error;

 		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
 		if (err < 0)
 			goto error;
 	}

 	err = snd_card_register(card);
 	if (err < 0)
 		goto error;

 	dev_set_drvdata(dev, card);
 	return 0;

 error:
 	snd_card_free(card);
 	return err;
 }

 static int snd_galaxy_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	return 0;
 }

 static struct isa_driver snd_galaxy_driver = {
 	.match		= snd_galaxy_match,
 	.probe		= snd_galaxy_probe,
 	.remove		= snd_galaxy_remove,

 	.driver		= {
 		.name	= DEV_NAME
 	}
 };

 static int __init alsa_card_galaxy_init(void)
 {
 	return isa_register_driver(&snd_galaxy_driver, SNDRV_CARDS);
 }

 static void __exit alsa_card_galaxy_exit(void)
 {
 	isa_unregister_driver(&snd_galaxy_driver);
 }

 module_init(alsa_card_galaxy_init);
 module_exit(alsa_card_galaxy_exit);
	/*
	* Aztech AZT1605/AZT2316 Driver
	* Copyright (C) 2007,2010 Rene Herman
	*
	* 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, see <http://www.gnu.org/licenses/>.
	*
	*/

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/isa.h>
	#include <linux/delay.h>
	#include <linux/io.h>
	#include <asm/processor.h>
	#include <sound/core.h>
	#include <sound/initval.h>
	#include <sound/wss.h>
	#include <sound/mpu401.h>
	#include <sound/opl3.h>

	MODULE_DESCRIPTION(CRD_NAME);
	MODULE_AUTHOR("Rene Herman");
	MODULE_LICENSE("GPL");

	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
	static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
	static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;

	module_param_array(index, int, NULL, 0444);
	MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
	module_param_array(id, charp, NULL, 0444);
	MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
	module_param_array(enable, bool, NULL, 0444);
	MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");

	static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
	static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
	static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
	static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
	static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
	static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
	static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
	static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;

	module_param_array(port, long, NULL, 0444);
	MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
	module_param_array(wss_port, long, NULL, 0444);
	MODULE_PARM_DESC(wss_port, "WSS port # for " CRD_NAME " driver.");
	module_param_array(mpu_port, long, NULL, 0444);
	MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
	module_param_array(fm_port, long, NULL, 0444);
	MODULE_PARM_DESC(fm_port, "FM port # for " CRD_NAME " driver.");
	module_param_array(irq, int, NULL, 0444);
	MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
	module_param_array(mpu_irq, int, NULL, 0444);
	MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
	module_param_array(dma1, int, NULL, 0444);
	MODULE_PARM_DESC(dma1, "Playback DMA # for " CRD_NAME " driver.");
	module_param_array(dma2, int, NULL, 0444);
	MODULE_PARM_DESC(dma2, "Capture DMA # for " CRD_NAME " driver.");

	/*
	* Generic SB DSP support routines
	*/

	#define DSP_PORT_RESET 0x6
	#define DSP_PORT_READ 0xa
	#define DSP_PORT_COMMAND 0xc
	#define DSP_PORT_STATUS 0xc
	#define DSP_PORT_DATA_AVAIL 0xe

	#define DSP_SIGNATURE 0xaa

	#define DSP_COMMAND_GET_VERSION 0xe1

	static int dsp_get_byte(void __iomem port, u8 val)
	{
	int loops = 1000;

	while (!(ioread8(port + DSP_PORT_DATA_AVAIL) & 0x80)) {
	if (!loops--)
	return -EIO;
	cpu_relax();
	}
	*val = ioread8(port + DSP_PORT_READ);
	return 0;
	}

	static int dsp_reset(void __iomem *port)
	{
	u8 val;

	iowrite8(1, port + DSP_PORT_RESET);
	udelay(10);
	iowrite8(0, port + DSP_PORT_RESET);

	if (dsp_get_byte(port, &val) < 0 \|\| val != DSP_SIGNATURE)
	return -ENODEV;

	return 0;
	}

	static int dsp_command(void __iomem *port, u8 cmd)
	{
	int loops = 1000;

	while (ioread8(port + DSP_PORT_STATUS) & 0x80) {
	if (!loops--)
	return -EIO;
	cpu_relax();
	}
	iowrite8(cmd, port + DSP_PORT_COMMAND);
	return 0;
	}

	static int dsp_get_version(void __iomem port, u8 major, u8 *minor)
	{
	int err;

	err = dsp_command(port, DSP_COMMAND_GET_VERSION);
	if (err < 0)
	return err;

	err = dsp_get_byte(port, major);
	if (err < 0)
	return err;

	err = dsp_get_byte(port, minor);
	if (err < 0)
	return err;

	return 0;
	}

	/*
	* Generic WSS support routines
	*/

	#define WSS_CONFIG_DMA_0 (1 << 0)
	#define WSS_CONFIG_DMA_1 (2 << 0)
	#define WSS_CONFIG_DMA_3 (3 << 0)
	#define WSS_CONFIG_DUPLEX (1 << 2)
	#define WSS_CONFIG_IRQ_7 (1 << 3)
	#define WSS_CONFIG_IRQ_9 (2 << 3)
	#define WSS_CONFIG_IRQ_10 (3 << 3)
	#define WSS_CONFIG_IRQ_11 (4 << 3)

	#define WSS_PORT_CONFIG 0
	#define WSS_PORT_SIGNATURE 3

	#define WSS_SIGNATURE 4

	static int wss_detect(void __iomem *wss_port)
	{
	if ((ioread8(wss_port + WSS_PORT_SIGNATURE) & 0x3f) != WSS_SIGNATURE)
	return -ENODEV;

	return 0;
	}

	static void wss_set_config(void __iomem *wss_port, u8 wss_config)
	{
	iowrite8(wss_config, wss_port + WSS_PORT_CONFIG);
	}

	/*
	* Aztech Sound Galaxy specifics
	*/

	#define GALAXY_PORT_CONFIG 1024
	#define CONFIG_PORT_SET 4

	#define DSP_COMMAND_GALAXY_8 8
	#define GALAXY_COMMAND_GET_TYPE 5

	#define DSP_COMMAND_GALAXY_9 9
	#define GALAXY_COMMAND_WSSMODE 0
	#define GALAXY_COMMAND_SB8MODE 1

	#define GALAXY_MODE_WSS GALAXY_COMMAND_WSSMODE
	#define GALAXY_MODE_SB8 GALAXY_COMMAND_SB8MODE

	struct snd_galaxy {
	void __iomem *port;
	void __iomem *config_port;
	void __iomem *wss_port;
	u32 config;
	struct resource *res_port;
	struct resource *res_config_port;
	struct resource *res_wss_port;
	};

	static u32 config[SNDRV_CARDS];
	static u8 wss_config[SNDRV_CARDS];

	static int snd_galaxy_match(struct device *dev, unsigned int n)
	{
	if (!enable[n])
	return 0;

	switch (port[n]) {
	case SNDRV_AUTO_PORT:
	dev_err(dev, "please specify port\n");
	return 0;
	case 0x220:
	config[n] \|= GALAXY_CONFIG_SBA_220;
	break;
	case 0x240:
	config[n] \|= GALAXY_CONFIG_SBA_240;
	break;
	case 0x260:
	config[n] \|= GALAXY_CONFIG_SBA_260;
	break;
	case 0x280:
	config[n] \|= GALAXY_CONFIG_SBA_280;
	break;
	default:
	dev_err(dev, "invalid port %#lx\n", port[n]);
	return 0;
	}

	switch (wss_port[n]) {
	case SNDRV_AUTO_PORT:
	dev_err(dev, "please specify wss_port\n");
	return 0;
	case 0x530:
	config[n] \|= GALAXY_CONFIG_WSS_ENABLE \| GALAXY_CONFIG_WSSA_530;
	break;
	case 0x604:
	config[n] \|= GALAXY_CONFIG_WSS_ENABLE \| GALAXY_CONFIG_WSSA_604;
	break;
	case 0xe80:
	config[n] \|= GALAXY_CONFIG_WSS_ENABLE \| GALAXY_CONFIG_WSSA_E80;
	break;
	case 0xf40:
	config[n] \|= GALAXY_CONFIG_WSS_ENABLE \| GALAXY_CONFIG_WSSA_F40;
	break;
	default:
	dev_err(dev, "invalid WSS port %#lx\n", wss_port[n]);
	return 0;
	}

	switch (irq[n]) {
	case SNDRV_AUTO_IRQ:
	dev_err(dev, "please specify irq\n");
	return 0;
	case 7:
	wss_config[n] \|= WSS_CONFIG_IRQ_7;
	break;
	case 2:
	irq[n] = 9;
	case 9:
	wss_config[n] \|= WSS_CONFIG_IRQ_9;
	break;
	case 10:
	wss_config[n] \|= WSS_CONFIG_IRQ_10;
	break;
	case 11:
	wss_config[n] \|= WSS_CONFIG_IRQ_11;
	break;
	default:
	dev_err(dev, "invalid IRQ %d\n", irq[n]);
	return 0;
	}

	switch (dma1[n]) {
	case SNDRV_AUTO_DMA:
	dev_err(dev, "please specify dma1\n");
	return 0;
	case 0:
	wss_config[n] \|= WSS_CONFIG_DMA_0;
	break;
	case 1:
	wss_config[n] \|= WSS_CONFIG_DMA_1;
	break;
	case 3:
	wss_config[n] \|= WSS_CONFIG_DMA_3;
	break;
	default:
	dev_err(dev, "invalid playback DMA %d\n", dma1[n]);
	return 0;
	}

	if (dma2[n] == SNDRV_AUTO_DMA \|\| dma2[n] == dma1[n]) {
	dma2[n] = -1;
	goto mpu;
	}

	wss_config[n] \|= WSS_CONFIG_DUPLEX;
	switch (dma2[n]) {
	case 0:
	break;
	case 1:
	if (dma1[n] == 0)
	break;
	default:
	dev_err(dev, "invalid capture DMA %d\n", dma2[n]);
	return 0;
	}

	mpu:
	switch (mpu_port[n]) {
	case SNDRV_AUTO_PORT:
	dev_warn(dev, "mpu_port not specified; not using MPU-401\n");
	mpu_port[n] = -1;
	goto fm;
	case 0x300:
	config[n] \|= GALAXY_CONFIG_MPU_ENABLE \| GALAXY_CONFIG_MPUA_300;
	break;
	case 0x330:
	config[n] \|= GALAXY_CONFIG_MPU_ENABLE \| GALAXY_CONFIG_MPUA_330;
	break;
	default:
	dev_err(dev, "invalid MPU port %#lx\n", mpu_port[n]);
	return 0;
	}

	switch (mpu_irq[n]) {
	case SNDRV_AUTO_IRQ:
	dev_warn(dev, "mpu_irq not specified: using polling mode\n");
	mpu_irq[n] = -1;
	break;
	case 2:
	mpu_irq[n] = 9;
	case 9:
	config[n] \|= GALAXY_CONFIG_MPUIRQ_2;
	break;
	#ifdef AZT1605
	case 3:
	config[n] \|= GALAXY_CONFIG_MPUIRQ_3;
	break;
	#endif
	case 5:
	config[n] \|= GALAXY_CONFIG_MPUIRQ_5;
	break;
	case 7:
	config[n] \|= GALAXY_CONFIG_MPUIRQ_7;
	break;
	#ifdef AZT2316
	case 10:
	config[n] \|= GALAXY_CONFIG_MPUIRQ_10;
	break;
	#endif
	default:
	dev_err(dev, "invalid MPU IRQ %d\n", mpu_irq[n]);
	return 0;
	}

	if (mpu_irq[n] == irq[n]) {
	dev_err(dev, "cannot share IRQ between WSS and MPU-401\n");
	return 0;
	}

	fm:
	switch (fm_port[n]) {
	case SNDRV_AUTO_PORT:
	dev_warn(dev, "fm_port not specified: not using OPL3\n");
	fm_port[n] = -1;
	break;
	case 0x388:
	break;
	default:
	dev_err(dev, "illegal FM port %#lx\n", fm_port[n]);
	return 0;
	}

	config[n] \|= GALAXY_CONFIG_GAME_ENABLE;
	return 1;
	}

	static int galaxy_init(struct snd_galaxy galaxy, u8 type)
	{
	u8 major;
	u8 minor;
	int err;

	err = dsp_reset(galaxy->port);
	if (err < 0)
	return err;

	err = dsp_get_version(galaxy->port, &major, &minor);
	if (err < 0)
	return err;

	if (major != GALAXY_DSP_MAJOR \|\| minor != GALAXY_DSP_MINOR)
	return -ENODEV;

	err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_8);
	if (err < 0)
	return err;

	err = dsp_command(galaxy->port, GALAXY_COMMAND_GET_TYPE);
	if (err < 0)
	return err;

	err = dsp_get_byte(galaxy->port, type);
	if (err < 0)
	return err;

	return 0;
	}

	static int galaxy_set_mode(struct snd_galaxy *galaxy, u8 mode)
	{
	int err;

	err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_9);
	if (err < 0)
	return err;

	err = dsp_command(galaxy->port, mode);
	if (err < 0)
	return err;

	#ifdef AZT1605
	/*
	* Needed for MPU IRQ on AZT1605, but AZT2316 loses WSS again
	*/
	err = dsp_reset(galaxy->port);
	if (err < 0)
	return err;
	#endif

	return 0;
	}

	static void galaxy_set_config(struct snd_galaxy *galaxy, u32 config)
	{
	u8 tmp = ioread8(galaxy->config_port + CONFIG_PORT_SET);
	int i;

	iowrite8(tmp \| 0x80, galaxy->config_port + CONFIG_PORT_SET);
	for (i = 0; i < GALAXY_CONFIG_SIZE; i++) {
	iowrite8(config, galaxy->config_port + i);
	config >>= 8;
	}
	iowrite8(tmp & 0x7f, galaxy->config_port + CONFIG_PORT_SET);
	msleep(10);
	}

	static void galaxy_config(struct snd_galaxy *galaxy, u32 config)
	{
	int i;

	for (i = GALAXY_CONFIG_SIZE; i; i--) {
	u8 tmp = ioread8(galaxy->config_port + i - 1);
	galaxy->config = (galaxy->config << 8) \| tmp;
	}
	config \|= galaxy->config & GALAXY_CONFIG_MASK;
	galaxy_set_config(galaxy, config);
	}

	static int galaxy_wss_config(struct snd_galaxy *galaxy, u8 wss_config)
	{
	int err;

	err = wss_detect(galaxy->wss_port);
	if (err < 0)
	return err;

	wss_set_config(galaxy->wss_port, wss_config);

	err = galaxy_set_mode(galaxy, GALAXY_MODE_WSS);
	if (err < 0)
	return err;

	return 0;
	}

	static void snd_galaxy_free(struct snd_card *card)
	{
	struct snd_galaxy *galaxy = card->private_data;

	if (galaxy->wss_port) {
	wss_set_config(galaxy->wss_port, 0);
	ioport_unmap(galaxy->wss_port);
	release_and_free_resource(galaxy->res_wss_port);
	}
	if (galaxy->config_port) {
	galaxy_set_config(galaxy, galaxy->config);
	ioport_unmap(galaxy->config_port);
	release_and_free_resource(galaxy->res_config_port);
	}
	if (galaxy->port) {
	ioport_unmap(galaxy->port);
	release_and_free_resource(galaxy->res_port);
	}
	}

	static int snd_galaxy_probe(struct device *dev, unsigned int n)
	{
	struct snd_galaxy *galaxy;
	struct snd_wss *chip;
	struct snd_card *card;
	u8 type;
	int err;

	err = snd_card_create(index[n], id[n], THIS_MODULE, sizeof *galaxy,
	&card);
	if (err < 0)
	return err;

	snd_card_set_dev(card, dev);

	card->private_free = snd_galaxy_free;
	galaxy = card->private_data;

	galaxy->res_port = request_region(port[n], 16, DRV_NAME);
	if (!galaxy->res_port) {
	dev_err(dev, "could not grab ports %#lx-%#lx\n", port[n],
	port[n] + 15);
	err = -EBUSY;
	goto error;
	}
	galaxy->port = ioport_map(port[n], 16);

	err = galaxy_init(galaxy, &type);
	if (err < 0) {
	dev_err(dev, "did not find a Sound Galaxy at %#lx\n", port[n]);
	goto error;
	}
	dev_info(dev, "Sound Galaxy (type %d) found at %#lx\n", type, port[n]);

	galaxy->res_config_port = request_region(port[n] + GALAXY_PORT_CONFIG,
	16, DRV_NAME);
	if (!galaxy->res_config_port) {
	dev_err(dev, "could not grab ports %#lx-%#lx\n",
	port[n] + GALAXY_PORT_CONFIG,
	port[n] + GALAXY_PORT_CONFIG + 15);
	err = -EBUSY;
	goto error;
	}
	galaxy->config_port = ioport_map(port[n] + GALAXY_PORT_CONFIG, 16);

	galaxy_config(galaxy, config[n]);

	galaxy->res_wss_port = request_region(wss_port[n], 4, DRV_NAME);
	if (!galaxy->res_wss_port) {
	dev_err(dev, "could not grab ports %#lx-%#lx\n", wss_port[n],
	wss_port[n] + 3);
	err = -EBUSY;
	goto error;
	}
	galaxy->wss_port = ioport_map(wss_port[n], 4);

	err = galaxy_wss_config(galaxy, wss_config[n]);
	if (err < 0) {
	dev_err(dev, "could not configure WSS\n");
	goto error;
	}

	strcpy(card->driver, DRV_NAME);
	strcpy(card->shortname, DRV_NAME);
	sprintf(card->longname, "%s at %#lx/%#lx, irq %d, dma %d/%d",
	card->shortname, port[n], wss_port[n], irq[n], dma1[n],
	dma2[n]);

	err = snd_wss_create(card, wss_port[n] + 4, -1, irq[n], dma1[n],
	dma2[n], WSS_HW_DETECT, 0, &chip);
	if (err < 0)
	goto error;

	err = snd_wss_pcm(chip, 0, NULL);
	if (err < 0)
	goto error;

	err = snd_wss_mixer(chip);
	if (err < 0)
	goto error;

	err = snd_wss_timer(chip, 0, NULL);
	if (err < 0)
	goto error;

	if (mpu_port[n] >= 0) {
	err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
	mpu_port[n], 0, mpu_irq[n], NULL);
	if (err < 0)
	goto error;
	}

	if (fm_port[n] >= 0) {
	struct snd_opl3 *opl3;

	err = snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
	OPL3_HW_AUTO, 0, &opl3);
	if (err < 0) {
	dev_err(dev, "no OPL device at %#lx\n", fm_port[n]);
	goto error;
	}
	err = snd_opl3_timer_new(opl3, 1, 2);
	if (err < 0)
	goto error;

	err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
	if (err < 0)
	goto error;
	}

	err = snd_card_register(card);
	if (err < 0)
	goto error;

	dev_set_drvdata(dev, card);
	return 0;

	error:
	snd_card_free(card);
	return err;
	}

	static int snd_galaxy_remove(struct device *dev, unsigned int n)
	{
	snd_card_free(dev_get_drvdata(dev));
	return 0;
	}

	static struct isa_driver snd_galaxy_driver = {
	.match = snd_galaxy_match,
	.probe = snd_galaxy_probe,
	.remove = snd_galaxy_remove,

	.driver = {
	.name = DEV_NAME
	}
	};

	static int __init alsa_card_galaxy_init(void)
	{
	return isa_register_driver(&snd_galaxy_driver, SNDRV_CARDS);
	}

	static void __exit alsa_card_galaxy_exit(void)
	{
	isa_unregister_driver(&snd_galaxy_driver);
	}

	module_init(alsa_card_galaxy_init);
	module_exit(alsa_card_galaxy_exit);