sound/isa/ad1848/ad1848.c - maze/linux - Git at Google

 /*
  *  Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
  *  Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
  *                   Jaroslav Kysela <perex@suse.cz>
  *  Based on card-4232.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/time.h>
 #include <linux/wait.h>
 #include <linux/moduleparam.h>
 #include <sound/core.h>
 #include <sound/ad1848.h>
 #include <sound/initval.h>

 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
 MODULE_DESCRIPTION("AD1848/AD1847/CS4248");
 MODULE_LICENSE("GPL");
 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
 	        "{Analog Devices,AD1847},"
 		"{Crystal Semiconductors,CS4248}}");

 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;	/* PnP setup */
 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
 static int thinkpad[SNDRV_CARDS];			/* Thinkpad special case */

 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for AD1848 soundcard.");
 module_param_array(id, charp, NULL, 0444);
 MODULE_PARM_DESC(id, "ID string for AD1848 soundcard.");
 module_param_array(enable, bool, NULL, 0444);
 MODULE_PARM_DESC(enable, "Enable AD1848 soundcard.");
 module_param_array(port, long, NULL, 0444);
 MODULE_PARM_DESC(port, "Port # for AD1848 driver.");
 module_param_array(irq, int, NULL, 0444);
 MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver.");
 module_param_array(dma1, int, NULL, 0444);
 MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 driver.");
 module_param_array(thinkpad, bool, NULL, 0444);
 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");

 static struct platform_device *devices[SNDRV_CARDS];


 static int __init snd_ad1848_probe(struct platform_device *pdev)
 {
 	int dev = pdev->id;
 	struct snd_card *card;
 	struct snd_ad1848 *chip;
 	struct snd_pcm *pcm;
 	int err;

 	if (port[dev] == SNDRV_AUTO_PORT) {
 		snd_printk(KERN_ERR "ad1848: specify port\n");
 		return -EINVAL;
 	}
 	if (irq[dev] == SNDRV_AUTO_IRQ) {
 		snd_printk(KERN_ERR "ad1848: specify irq\n");
 		return -EINVAL;
 	}
 	if (dma1[dev] == SNDRV_AUTO_DMA) {
 		snd_printk(KERN_ERR "ad1848: specify dma1\n");
 		return -EINVAL;
 	}

 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
 	if (card == NULL)
 		return -ENOMEM;

 	if ((err = snd_ad1848_create(card, port[dev],
 				     irq[dev],
 				     dma1[dev],
 				     thinkpad[dev] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT,
 				     &chip)) < 0)
 		goto _err;
 	card->private_data = chip;

 	if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0)
 		goto _err;

 	if ((err = snd_ad1848_mixer(chip)) < 0)
 		goto _err;

 	strcpy(card->driver, "AD1848");
 	strcpy(card->shortname, pcm->name);

 	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 		pcm->name, chip->port, irq[dev], dma1[dev]);

 	if (thinkpad[dev])
 		strcat(card->longname, " [Thinkpad]");

 	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 __devexit snd_ad1848_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
 	return 0;
 }

 #ifdef CONFIG_PM
 static int snd_ad1848_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 	struct snd_ad1848 *chip = card->private_data;

 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	chip->suspend(chip);
 	return 0;
 }

 static int snd_ad1848_resume(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 	struct snd_ad1848 *chip = card->private_data;

 	chip->resume(chip);
 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 	return 0;
 }
 #endif

 #define SND_AD1848_DRIVER	"snd_ad1848"

 static struct platform_driver snd_ad1848_driver = {
 	.probe		= snd_ad1848_probe,
 	.remove		= __devexit_p(snd_ad1848_remove),
 #ifdef CONFIG_PM
 	.suspend	= snd_ad1848_suspend,
 	.resume		= snd_ad1848_resume,
 #endif
 	.driver		= {
 		.name	= SND_AD1848_DRIVER
 	},
 };

 static void __init_or_module snd_ad1848_unregister_all(void)
 {
 	int i;

 	for (i = 0; i < ARRAY_SIZE(devices); ++i)
 		platform_device_unregister(devices[i]);
 	platform_driver_unregister(&snd_ad1848_driver);
 }

 static int __init alsa_card_ad1848_init(void)
 {
 	int i, cards, err;

 	err = platform_driver_register(&snd_ad1848_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_AD1848_DRIVER,
 							 i, NULL, 0);
 		if (IS_ERR(device)) {
 			err = PTR_ERR(device);
 			goto errout;
 		}
 		devices[i] = device;
 		cards++;
 	}
 	if (!cards) {
 #ifdef MODULE
 		printk(KERN_ERR "AD1848 soundcard not found or device busy\n");
 #endif
 		err = -ENODEV;
 		goto errout;
 	}
 	return 0;

  errout:
 	snd_ad1848_unregister_all();
 	return err;
 }

 static void __exit alsa_card_ad1848_exit(void)
 {
 	snd_ad1848_unregister_all();
 }

 module_init(alsa_card_ad1848_init)
 module_exit(alsa_card_ad1848_exit)
	/*
	* Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
	* Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
	* Jaroslav Kysela <perex@suse.cz>
	* Based on card-4232.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/time.h>
	#include <linux/wait.h>
	#include <linux/moduleparam.h>
	#include <sound/core.h>
	#include <sound/ad1848.h>
	#include <sound/initval.h>

	MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
	MODULE_DESCRIPTION("AD1848/AD1847/CS4248");
	MODULE_LICENSE("GPL");
	MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
	"{Analog Devices,AD1847},"
	"{Crystal Semiconductors,CS4248}}");

	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; /* PnP setup */
	static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
	static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
	static int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */

	module_param_array(index, int, NULL, 0444);
	MODULE_PARM_DESC(index, "Index value for AD1848 soundcard.");
	module_param_array(id, charp, NULL, 0444);
	MODULE_PARM_DESC(id, "ID string for AD1848 soundcard.");
	module_param_array(enable, bool, NULL, 0444);
	MODULE_PARM_DESC(enable, "Enable AD1848 soundcard.");
	module_param_array(port, long, NULL, 0444);
	MODULE_PARM_DESC(port, "Port # for AD1848 driver.");
	module_param_array(irq, int, NULL, 0444);
	MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver.");
	module_param_array(dma1, int, NULL, 0444);
	MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 driver.");
	module_param_array(thinkpad, bool, NULL, 0444);
	MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");

	static struct platform_device *devices[SNDRV_CARDS];


	static int __init snd_ad1848_probe(struct platform_device *pdev)
	{
	int dev = pdev->id;
	struct snd_card *card;
	struct snd_ad1848 *chip;
	struct snd_pcm *pcm;
	int err;

	if (port[dev] == SNDRV_AUTO_PORT) {
	snd_printk(KERN_ERR "ad1848: specify port\n");
	return -EINVAL;
	}
	if (irq[dev] == SNDRV_AUTO_IRQ) {
	snd_printk(KERN_ERR "ad1848: specify irq\n");
	return -EINVAL;
	}
	if (dma1[dev] == SNDRV_AUTO_DMA) {
	snd_printk(KERN_ERR "ad1848: specify dma1\n");
	return -EINVAL;
	}

	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
	if (card == NULL)
	return -ENOMEM;

	if ((err = snd_ad1848_create(card, port[dev],
	irq[dev],
	dma1[dev],
	thinkpad[dev] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT,
	&chip)) < 0)
	goto _err;
	card->private_data = chip;

	if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0)
	goto _err;

	if ((err = snd_ad1848_mixer(chip)) < 0)
	goto _err;

	strcpy(card->driver, "AD1848");
	strcpy(card->shortname, pcm->name);

	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
	pcm->name, chip->port, irq[dev], dma1[dev]);

	if (thinkpad[dev])
	strcat(card->longname, " [Thinkpad]");

	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 __devexit snd_ad1848_remove(struct platform_device *devptr)
	{
	snd_card_free(platform_get_drvdata(devptr));
	platform_set_drvdata(devptr, NULL);
	return 0;
	}

	#ifdef CONFIG_PM
	static int snd_ad1848_suspend(struct platform_device *pdev, pm_message_t state)
	{
	struct snd_card *card = platform_get_drvdata(pdev);
	struct snd_ad1848 *chip = card->private_data;

	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	chip->suspend(chip);
	return 0;
	}

	static int snd_ad1848_resume(struct platform_device *pdev)
	{
	struct snd_card *card = platform_get_drvdata(pdev);
	struct snd_ad1848 *chip = card->private_data;

	chip->resume(chip);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
	}
	#endif

	#define SND_AD1848_DRIVER "snd_ad1848"

	static struct platform_driver snd_ad1848_driver = {
	.probe = snd_ad1848_probe,
	.remove = __devexit_p(snd_ad1848_remove),
	#ifdef CONFIG_PM
	.suspend = snd_ad1848_suspend,
	.resume = snd_ad1848_resume,
	#endif
	.driver = {
	.name = SND_AD1848_DRIVER
	},
	};

	static void __init_or_module snd_ad1848_unregister_all(void)
	{
	int i;

	for (i = 0; i < ARRAY_SIZE(devices); ++i)
	platform_device_unregister(devices[i]);
	platform_driver_unregister(&snd_ad1848_driver);
	}

	static int __init alsa_card_ad1848_init(void)
	{
	int i, cards, err;

	err = platform_driver_register(&snd_ad1848_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_AD1848_DRIVER,
	i, NULL, 0);
	if (IS_ERR(device)) {
	err = PTR_ERR(device);
	goto errout;
	}
	devices[i] = device;
	cards++;
	}
	if (!cards) {
	#ifdef MODULE
	printk(KERN_ERR "AD1848 soundcard not found or device busy\n");
	#endif
	err = -ENODEV;
	goto errout;
	}
	return 0;

	errout:
	snd_ad1848_unregister_all();
	return err;
	}

	static void __exit alsa_card_ad1848_exit(void)
	{
	snd_ad1848_unregister_all();
	}

	module_init(alsa_card_ad1848_init)
	module_exit(alsa_card_ad1848_exit)