sound/isa/sb/sb8.c - maze/linux - Git at Google

 /*
  *  Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
  *
  *
  *   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
  *
  */

 #include <sound/driver.h>
 #include <linux/init.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/ioport.h>
 #include <linux/moduleparam.h>
 #include <sound/core.h>
 #include <sound/sb.h>
 #include <sound/opl3.h>
 #include <sound/initval.h>

 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
 MODULE_LICENSE("GPL");
 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");

 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260 */
 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 1,3 */

 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
 module_param_array(id, charp, NULL, 0444);
 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
 module_param_array(enable, bool, NULL, 0444);
 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
 module_param_array(port, long, NULL, 0444);
 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
 module_param_array(irq, int, NULL, 0444);
 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
 module_param_array(dma8, int, NULL, 0444);
 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");

 static struct platform_device *devices[SNDRV_CARDS];

 struct snd_sb8 {
 	struct resource *fm_res;	/* used to block FM i/o region for legacy cards */
 	struct snd_sb *chip;
 };

 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct snd_sb *chip = dev_id;

 	if (chip->open & SB_OPEN_PCM) {
 		return snd_sb8dsp_interrupt(chip);
 	} else {
 		return snd_sb8dsp_midi_interrupt(chip);
 	}
 }

 static void snd_sb8_free(struct snd_card *card)
 {
 	struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;

 	if (acard == NULL)
 		return;
 	release_and_free_resource(acard->fm_res);
 }

 static int __init snd_sb8_probe(struct platform_device *pdev)
 {
 	int dev = pdev->id;
 	struct snd_sb *chip;
 	struct snd_card *card;
 	struct snd_sb8 *acard;
 	struct snd_opl3 *opl3;
 	int err;

 	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 			    sizeof(struct snd_sb8));
 	if (card == NULL)
 		return -ENOMEM;
 	acard = card->private_data;
 	card->private_free = snd_sb8_free;

 	/* block the 0x388 port to avoid PnP conflicts */
 	acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");

 	if (port[dev] != SNDRV_AUTO_PORT) {
 		if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 					    snd_sb8_interrupt,
 					    dma8[dev],
 					    -1,
 					    SB_HW_AUTO,
 					    &chip)) < 0)
 			goto _err;
 	} else {
 		/* auto-probe legacy ports */
 		static unsigned long possible_ports[] = {
 			0x220, 0x240, 0x260,
 		};
 		int i;
 		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 			err = snd_sbdsp_create(card, possible_ports[i],
 					       irq[dev],
 					       snd_sb8_interrupt,
 					       dma8[dev],
 					       -1,
 					       SB_HW_AUTO,
 					       &chip);
 			if (err >= 0) {
 				port[dev] = possible_ports[i];
 				break;
 			}
 		}
 		if (i >= ARRAY_SIZE(possible_ports))
 			goto _err;
 	}
 	acard->chip = chip;

 	if (chip->hardware >= SB_HW_16) {
 		if (chip->hardware == SB_HW_ALS100)
 			snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 				    port[dev]);
 		else
 			snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 				   port[dev]);
 		err = -ENODEV;
 		goto _err;
 	}

 	if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
 		goto _err;

 	if ((err = snd_sbmixer_new(chip)) < 0)
 		goto _err;

 	if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 		if ((err = snd_opl3_create(card, chip->port + 8, 0,
 					   OPL3_HW_AUTO, 1,
 					   &opl3)) < 0) {
 			snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 		}
 	} else {
 		if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
 					   OPL3_HW_AUTO, 1,
 					   &opl3)) < 0) {
 			snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 				   chip->port, chip->port + 2);
 		}
 	}
 	if (err >= 0) {
 		if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 			goto _err;
 	}

 	if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
 		goto _err;

 	strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 	strcpy(card->shortname, chip->name);
 	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 		chip->name,
 		chip->port,
 		irq[dev], dma8[dev]);

 	snd_card_set_dev(card, &pdev->dev);

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

 	platform_set_drvdata(pdev, card);
 	return 0;

  _err:
 	snd_card_free(card);
 	return err;
 }

 static int snd_sb8_remove(struct platform_device *pdev)
 {
 	snd_card_free(platform_get_drvdata(pdev));
 	platform_set_drvdata(pdev, NULL);
 	return 0;
 }

 #ifdef CONFIG_PM
 static int snd_sb8_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct snd_card *card = platform_get_drvdata(dev);
 	struct snd_sb8 *acard = card->private_data;
 	struct snd_sb *chip = acard->chip;

 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	snd_pcm_suspend_all(chip->pcm);
 	snd_sbmixer_suspend(chip);
 	return 0;
 }

 static int snd_sb8_resume(struct platform_device *dev)
 {
 	struct snd_card *card = platform_get_drvdata(dev);
 	struct snd_sb8 *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

 #define SND_SB8_DRIVER	"snd_sb8"

 static struct platform_driver snd_sb8_driver = {
 	.probe		= snd_sb8_probe,
 	.remove		= snd_sb8_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_sb8_suspend,
 	.resume		= snd_sb8_resume,
 #endif
 	.driver		= {
 		.name	= SND_SB8_DRIVER
 	},
 };

 static void __init_or_module snd_sb8_unregister_all(void)
 {
 	int i;

 	for (i = 0; i < ARRAY_SIZE(devices); ++i)
 		platform_device_unregister(devices[i]);
 	platform_driver_unregister(&snd_sb8_driver);
 }

 static int __init alsa_card_sb8_init(void)
 {
 	int i, cards, err;

 	err = platform_driver_register(&snd_sb8_driver);
 	if (err < 0)
 		return err;

 	cards = 0;
 	for (i = 0; i < SNDRV_CARDS; i++) {
 		struct platform_device *device;
 		if (! enable[i])
 			continue;
 		device = platform_device_register_simple(SND_SB8_DRIVER,
 							 i, NULL, 0);
 		if (IS_ERR(device)) {
 			err = PTR_ERR(device);
 			goto errout;
 		}
 		devices[i] = device;
 		cards++;
 	}
 	if (!cards) {
 #ifdef MODULE
 		snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n");
 #endif
 		err = -ENODEV;
 		goto errout;
 	}
 	return 0;

  errout:
 	snd_sb8_unregister_all();
 	return err;
 }

 static void __exit alsa_card_sb8_exit(void)
 {
 	snd_sb8_unregister_all();
 }

 module_init(alsa_card_sb8_init)
 module_exit(alsa_card_sb8_exit)
	/*
	* Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
	* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
	*
	*
	* 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
	*
	*/

	#include <sound/driver.h>
	#include <linux/init.h>
	#include <linux/err.h>
	#include <linux/platform_device.h>
	#include <linux/slab.h>
	#include <linux/ioport.h>
	#include <linux/moduleparam.h>
	#include <sound/core.h>
	#include <sound/sb.h>
	#include <sound/opl3.h>
	#include <sound/initval.h>

	MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
	MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
	MODULE_LICENSE("GPL");
	MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");

	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
	static char id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; / ID for this card */
	static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
	static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
	static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
	static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */

	module_param_array(index, int, NULL, 0444);
	MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
	module_param_array(id, charp, NULL, 0444);
	MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
	module_param_array(enable, bool, NULL, 0444);
	MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
	module_param_array(port, long, NULL, 0444);
	MODULE_PARM_DESC(port, "Port # for SB8 driver.");
	module_param_array(irq, int, NULL, 0444);
	MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
	module_param_array(dma8, int, NULL, 0444);
	MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");

	static struct platform_device *devices[SNDRV_CARDS];

	struct snd_sb8 {
	struct resource fm_res; / used to block FM i/o region for legacy cards */
	struct snd_sb *chip;
	};

	static irqreturn_t snd_sb8_interrupt(int irq, void dev_id, struct pt_regs regs)
	{
	struct snd_sb *chip = dev_id;

	if (chip->open & SB_OPEN_PCM) {
	return snd_sb8dsp_interrupt(chip);
	} else {
	return snd_sb8dsp_midi_interrupt(chip);
	}
	}

	static void snd_sb8_free(struct snd_card *card)
	{
	struct snd_sb8 acard = (struct snd_sb8 )card->private_data;

	if (acard == NULL)
	return;
	release_and_free_resource(acard->fm_res);
	}

	static int __init snd_sb8_probe(struct platform_device *pdev)
	{
	int dev = pdev->id;
	struct snd_sb *chip;
	struct snd_card *card;
	struct snd_sb8 *acard;
	struct snd_opl3 *opl3;
	int err;

	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
	sizeof(struct snd_sb8));
	if (card == NULL)
	return -ENOMEM;
	acard = card->private_data;
	card->private_free = snd_sb8_free;

	/* block the 0x388 port to avoid PnP conflicts */
	acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");

	if (port[dev] != SNDRV_AUTO_PORT) {
	if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
	snd_sb8_interrupt,
	dma8[dev],
	-1,
	SB_HW_AUTO,
	&chip)) < 0)
	goto _err;
	} else {
	/* auto-probe legacy ports */
	static unsigned long possible_ports[] = {
	0x220, 0x240, 0x260,
	};
	int i;
	for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
	err = snd_sbdsp_create(card, possible_ports[i],
	irq[dev],
	snd_sb8_interrupt,
	dma8[dev],
	-1,
	SB_HW_AUTO,
	&chip);
	if (err >= 0) {
	port[dev] = possible_ports[i];
	break;
	}
	}
	if (i >= ARRAY_SIZE(possible_ports))
	goto _err;
	}
	acard->chip = chip;

	if (chip->hardware >= SB_HW_16) {
	if (chip->hardware == SB_HW_ALS100)
	snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
	port[dev]);
	else
	snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
	port[dev]);
	err = -ENODEV;
	goto _err;
	}

	if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
	goto _err;

	if ((err = snd_sbmixer_new(chip)) < 0)
	goto _err;

	if (chip->hardware == SB_HW_10 \|\| chip->hardware == SB_HW_20) {
	if ((err = snd_opl3_create(card, chip->port + 8, 0,
	OPL3_HW_AUTO, 1,
	&opl3)) < 0) {
	snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
	}
	} else {
	if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
	OPL3_HW_AUTO, 1,
	&opl3)) < 0) {
	snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
	chip->port, chip->port + 2);
	}
	}
	if (err >= 0) {
	if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
	goto _err;
	}

	if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
	goto _err;

	strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
	strcpy(card->shortname, chip->name);
	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
	chip->name,
	chip->port,
	irq[dev], dma8[dev]);

	snd_card_set_dev(card, &pdev->dev);

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

	platform_set_drvdata(pdev, card);
	return 0;

	_err:
	snd_card_free(card);
	return err;
	}

	static int snd_sb8_remove(struct platform_device *pdev)
	{
	snd_card_free(platform_get_drvdata(pdev));
	platform_set_drvdata(pdev, NULL);
	return 0;
	}

	#ifdef CONFIG_PM
	static int snd_sb8_suspend(struct platform_device *dev, pm_message_t state)
	{
	struct snd_card *card = platform_get_drvdata(dev);
	struct snd_sb8 *acard = card->private_data;
	struct snd_sb *chip = acard->chip;

	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	snd_pcm_suspend_all(chip->pcm);
	snd_sbmixer_suspend(chip);
	return 0;
	}

	static int snd_sb8_resume(struct platform_device *dev)
	{
	struct snd_card *card = platform_get_drvdata(dev);
	struct snd_sb8 *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

	#define SND_SB8_DRIVER "snd_sb8"

	static struct platform_driver snd_sb8_driver = {
	.probe = snd_sb8_probe,
	.remove = snd_sb8_remove,
	#ifdef CONFIG_PM
	.suspend = snd_sb8_suspend,
	.resume = snd_sb8_resume,
	#endif
	.driver = {
	.name = SND_SB8_DRIVER
	},
	};

	static void __init_or_module snd_sb8_unregister_all(void)
	{
	int i;

	for (i = 0; i < ARRAY_SIZE(devices); ++i)
	platform_device_unregister(devices[i]);
	platform_driver_unregister(&snd_sb8_driver);
	}

	static int __init alsa_card_sb8_init(void)
	{
	int i, cards, err;

	err = platform_driver_register(&snd_sb8_driver);
	if (err < 0)
	return err;

	cards = 0;
	for (i = 0; i < SNDRV_CARDS; i++) {
	struct platform_device *device;
	if (! enable[i])
	continue;
	device = platform_device_register_simple(SND_SB8_DRIVER,
	i, NULL, 0);
	if (IS_ERR(device)) {
	err = PTR_ERR(device);
	goto errout;
	}
	devices[i] = device;
	cards++;
	}
	if (!cards) {
	#ifdef MODULE
	snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n");
	#endif
	err = -ENODEV;
	goto errout;
	}
	return 0;

	errout:
	snd_sb8_unregister_all();
	return err;
	}

	static void __exit alsa_card_sb8_exit(void)
	{
	snd_sb8_unregister_all();
	}

	module_init(alsa_card_sb8_init)
	module_exit(alsa_card_sb8_exit)