sound/isa/gus/gusclassic.c - arm/linux-arm64-legacy - Git at Google

 /*
  *  Driver for Gravis UltraSound Classic soundcard
  *  Copyright (c) by Jaroslav Kysela <perex@perex.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 <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>
 #define SNDRV_LEGACY_FIND_FREE_IRQ
 #define SNDRV_LEGACY_FIND_FREE_DMA
 #include <sound/initval.h>

 #define CRD_NAME "Gravis UltraSound Classic"
 #define DEV_NAME "gusclassic"

 MODULE_DESCRIPTION(CRD_NAME);
 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 MODULE_LICENSE("GPL");
 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");

 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;	/* 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 " 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.");
 module_param_array(port, long, NULL, 0444);
 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 module_param_array(irq, int, NULL, 0444);
 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
 module_param_array(dma1, int, NULL, 0444);
 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
 module_param_array(dma2, int, NULL, 0444);
 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " 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 " CRD_NAME " driver.");
 module_param_array(channels, int, NULL, 0444);
 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
 module_param_array(pcm_channels, int, NULL, 0444);
 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");

 static int snd_gusclassic_match(struct device *dev, unsigned int n)
 {
 	return enable[n];
 }

 static int snd_gusclassic_create(struct snd_card *card,
 				 struct device *dev, unsigned int n,
 				 struct snd_gus_card **rgus)
 {
 	static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
 	static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
 	static int possible_dmas[] = {5, 6, 7, 1, 3, -1};

 	int i, error;

 	if (irq[n] == SNDRV_AUTO_IRQ) {
 		irq[n] = snd_legacy_find_free_irq(possible_irqs);
 		if (irq[n] < 0) {
 			dev_err(dev, "unable to find a free IRQ\n");
 			return -EBUSY;
 		}
 	}
 	if (dma1[n] == SNDRV_AUTO_DMA) {
 		dma1[n] = snd_legacy_find_free_dma(possible_dmas);
 		if (dma1[n] < 0) {
 			dev_err(dev, "unable to find a free DMA1\n");
 			return -EBUSY;
 		}
 	}
 	if (dma2[n] == SNDRV_AUTO_DMA) {
 		dma2[n] = snd_legacy_find_free_dma(possible_dmas);
 		if (dma2[n] < 0) {
 			dev_err(dev, "unable to find a free DMA2\n");
 			return -EBUSY;
 		}
 	}

 	if (port[n] != SNDRV_AUTO_PORT)
 		return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 				0, channels[n], pcm_channels[n], 0, rgus);

 	i = 0;
 	do {
 		port[n] = possible_ports[i];
 		error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 				0, channels[n], pcm_channels[n], 0, rgus);
 	} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));

 	return error;
 }

 static int snd_gusclassic_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 int snd_gusclassic_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	struct snd_gus_card *gus;
 	int error;

 	error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
 	if (error < 0)
 		return error;

 	if (pcm_channels[n] < 2)
 		pcm_channels[n] = 2;

 	error = snd_gusclassic_create(card, dev, n, &gus);
 	if (error < 0)
 		goto out;

 	error = snd_gusclassic_detect(gus);
 	if (error < 0)
 		goto out;

 	gus->joystick_dac = joystick_dac[n];

 	error = snd_gus_initialize(gus);
 	if (error < 0)
 		goto out;

 	error = -ENODEV;
 	if (gus->max_flag || gus->ess_flag) {
 		dev_err(dev, "GUS Classic or ACE soundcard was "
 			"not detected at 0x%lx\n", gus->gf1.port);
 		goto out;
 	}

 	error = snd_gf1_new_mixer(gus);
 	if (error < 0)
 		goto out;

 	error = snd_gf1_pcm_new(gus, 0, 0, NULL);
 	if (error < 0)
 		goto out;

 	if (!gus->ace_flag) {
 		error = snd_gf1_rawmidi_new(gus, 0, NULL);
 		if (error < 0)
 			goto out;
 	}

 	sprintf(card->longname + strlen(card->longname),
 		" at 0x%lx, irq %d, dma %d",
 		gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);

 	if (gus->gf1.dma2 >= 0)
 		sprintf(card->longname + strlen(card->longname),
 			"&%d", gus->gf1.dma2);

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

 	dev_set_drvdata(dev, card);
 	return 0;

 out:	snd_card_free(card);
 	return error;
 }

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

 static struct isa_driver snd_gusclassic_driver = {
 	.match		= snd_gusclassic_match,
 	.probe		= snd_gusclassic_probe,
 	.remove		= snd_gusclassic_remove,
 #if 0	/* FIXME */
 	.suspend	= snd_gusclassic_suspend,
 	.remove		= snd_gusclassic_remove,
 #endif
 	.driver		= {
 		.name	= DEV_NAME
 	}
 };

 static int __init alsa_card_gusclassic_init(void)
 {
 	return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
 }

 static void __exit alsa_card_gusclassic_exit(void)
 {
 	isa_unregister_driver(&snd_gusclassic_driver);
 }

 module_init(alsa_card_gusclassic_init);
 module_exit(alsa_card_gusclassic_exit);
	/*
	* Driver for Gravis UltraSound Classic soundcard
	* Copyright (c) by Jaroslav Kysela <perex@perex.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 <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>
	#define SNDRV_LEGACY_FIND_FREE_IRQ
	#define SNDRV_LEGACY_FIND_FREE_DMA
	#include <sound/initval.h>

	#define CRD_NAME "Gravis UltraSound Classic"
	#define DEV_NAME "gusclassic"

	MODULE_DESCRIPTION(CRD_NAME);
	MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
	MODULE_LICENSE("GPL");
	MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");

	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; /* 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 " 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.");
	module_param_array(port, long, NULL, 0444);
	MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
	module_param_array(irq, int, NULL, 0444);
	MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
	module_param_array(dma1, int, NULL, 0444);
	MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
	module_param_array(dma2, int, NULL, 0444);
	MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " 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 " CRD_NAME " driver.");
	module_param_array(channels, int, NULL, 0444);
	MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
	module_param_array(pcm_channels, int, NULL, 0444);
	MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");

	static int snd_gusclassic_match(struct device *dev, unsigned int n)
	{
	return enable[n];
	}

	static int snd_gusclassic_create(struct snd_card *card,
	struct device *dev, unsigned int n,
	struct snd_gus_card **rgus)
	{
	static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
	static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
	static int possible_dmas[] = {5, 6, 7, 1, 3, -1};

	int i, error;

	if (irq[n] == SNDRV_AUTO_IRQ) {
	irq[n] = snd_legacy_find_free_irq(possible_irqs);
	if (irq[n] < 0) {
	dev_err(dev, "unable to find a free IRQ\n");
	return -EBUSY;
	}
	}
	if (dma1[n] == SNDRV_AUTO_DMA) {
	dma1[n] = snd_legacy_find_free_dma(possible_dmas);
	if (dma1[n] < 0) {
	dev_err(dev, "unable to find a free DMA1\n");
	return -EBUSY;
	}
	}
	if (dma2[n] == SNDRV_AUTO_DMA) {
	dma2[n] = snd_legacy_find_free_dma(possible_dmas);
	if (dma2[n] < 0) {
	dev_err(dev, "unable to find a free DMA2\n");
	return -EBUSY;
	}
	}

	if (port[n] != SNDRV_AUTO_PORT)
	return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
	0, channels[n], pcm_channels[n], 0, rgus);

	i = 0;
	do {
	port[n] = possible_ports[i];
	error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
	0, channels[n], pcm_channels[n], 0, rgus);
	} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));

	return error;
	}

	static int snd_gusclassic_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 int snd_gusclassic_probe(struct device *dev, unsigned int n)
	{
	struct snd_card *card;
	struct snd_gus_card *gus;
	int error;

	error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
	if (error < 0)
	return error;

	if (pcm_channels[n] < 2)
	pcm_channels[n] = 2;

	error = snd_gusclassic_create(card, dev, n, &gus);
	if (error < 0)
	goto out;

	error = snd_gusclassic_detect(gus);
	if (error < 0)
	goto out;

	gus->joystick_dac = joystick_dac[n];

	error = snd_gus_initialize(gus);
	if (error < 0)
	goto out;

	error = -ENODEV;
	if (gus->max_flag \|\| gus->ess_flag) {
	dev_err(dev, "GUS Classic or ACE soundcard was "
	"not detected at 0x%lx\n", gus->gf1.port);
	goto out;
	}

	error = snd_gf1_new_mixer(gus);
	if (error < 0)
	goto out;

	error = snd_gf1_pcm_new(gus, 0, 0, NULL);
	if (error < 0)
	goto out;

	if (!gus->ace_flag) {
	error = snd_gf1_rawmidi_new(gus, 0, NULL);
	if (error < 0)
	goto out;
	}

	sprintf(card->longname + strlen(card->longname),
	" at 0x%lx, irq %d, dma %d",
	gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);

	if (gus->gf1.dma2 >= 0)
	sprintf(card->longname + strlen(card->longname),
	"&%d", gus->gf1.dma2);

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

	dev_set_drvdata(dev, card);
	return 0;

	out: snd_card_free(card);
	return error;
	}

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

	static struct isa_driver snd_gusclassic_driver = {
	.match = snd_gusclassic_match,
	.probe = snd_gusclassic_probe,
	.remove = snd_gusclassic_remove,
	#if 0 /* FIXME */
	.suspend = snd_gusclassic_suspend,
	.remove = snd_gusclassic_remove,
	#endif
	.driver = {
	.name = DEV_NAME
	}
	};

	static int __init alsa_card_gusclassic_init(void)
	{
	return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
	}

	static void __exit alsa_card_gusclassic_exit(void)
	{
	isa_unregister_driver(&snd_gusclassic_driver);
	}

	module_init(alsa_card_gusclassic_init);
	module_exit(alsa_card_gusclassic_exit);