text: 
  /*
      card-als100.c - driver for Avance Logic ALS100 based soundcards.
      Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
      Copyright (C) 1999-2002 by Massimo Piccioni <dafastidio@libero.it>
  
      Thanks to Pierfrancesco 'qM2' Passerini.
  
      Generalised for soundcards based on DT-0196 and ALS-007 chips
      by Jonathan Woithe <jwoithe@physics.adelaide.edu.au>: June 2002.
  
      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/wait.h>
  #include <linux/time.h>
  #include <linux/pnp.h>
  #include <linux/module.h>
  #include <sound/core.h>
  #include <sound/initval.h>
  #include <sound/mpu401.h>
  #include <sound/opl3.h>
  #include <sound/sb.h>
  
  #define PFX "als100: "
  
  MODULE_DESCRIPTION("Avance Logic ALS007/ALS1X0");
  MODULE_SUPPORTED_DEVICE("{{Diamond Technologies DT-019X},"
  		"{Avance Logic ALS-007}}"
  		"{{Avance Logic,ALS100 - PRO16PNP},"
  	        "{Avance Logic,ALS110},"
  	        "{Avance Logic,ALS120},"
  	        "{Avance Logic,ALS200},"
  	        "{3D Melody,MF1000},"
  	        "{Digimate,3D Sound},"
  	        "{Avance Logic,ALS120},"
  	        "{RTL,RTL3000}}");
  
  MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
  MODULE_LICENSE("GPL");
  
  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;	/* PnP setup */
  static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
  static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
  static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* PnP setup */
  static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* PnP setup */
  static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* PnP setup */
  static int dma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* PnP setup */
  
  module_param_array(index, int, NULL, 0444);
  MODULE_PARM_DESC(index, "Index value for Avance Logic based soundcard.");
  module_param_array(id, charp, NULL, 0444);
  MODULE_PARM_DESC(id, "ID string for Avance Logic based soundcard.");
  module_param_array(enable, bool, NULL, 0444);
  MODULE_PARM_DESC(enable, "Enable Avance Logic based soundcard.");
  
  MODULE_ALIAS("snd-dt019x");
  
  struct snd_card_als100 {
  	struct pnp_dev *dev;
  	struct pnp_dev *devmpu;
  	struct pnp_dev *devopl;
  	struct snd_sb *chip;
  };
  
  static struct pnp_card_device_id snd_als100_pnpids[] = {
  	/* DT197A30 */
  	{ .id = "RWB1688",
  	  .devs = { { "@@@0001" }, { "@X@0001" }, { "@H@0001" } },
  	  .driver_data = SB_HW_DT019X },
  	/* DT0196 / ALS-007 */
  	{ .id = "ALS0007",
  	  .devs = { { "@@@0001" }, { "@X@0001" }, { "@H@0001" } },
  	  .driver_data = SB_HW_DT019X },
  	/* ALS100 - PRO16PNP */
  	{ .id = "ALS0001",
  	  .devs = { { "@@@0001" }, { "@X@0001" }, { "@H@0001" } },
  	  .driver_data = SB_HW_ALS100 },
  	/* ALS110 - MF1000 - Digimate 3D Sound */
  	{ .id = "ALS0110",
  	  .devs = { { "@@@1001" }, { "@X@1001" }, { "@H@1001" } },
  	  .driver_data = SB_HW_ALS100 },
  	/* ALS120 */
  	{ .id = "ALS0120",
  	  .devs = { { "@@@2001" }, { "@X@2001" }, { "@H@2001" } },
  	  .driver_data = SB_HW_ALS100 },
  	/* ALS200 */
  	{ .id = "ALS0200",
  	  .devs = { { "@@@0020" }, { "@X@0020" }, { "@H@0001" } },
  	  .driver_data = SB_HW_ALS100 },
  	/* ALS200 OEM */
  	{ .id = "ALS0200",
  	  .devs = { { "@@@0020" }, { "@X@0020" }, { "@H@0020" } },
  	  .driver_data = SB_HW_ALS100 },
  	/* RTL3000 */
  	{ .id = "RTL3000",
  	  .devs = { { "@@@2001" }, { "@X@2001" }, { "@H@2001" } },
  	  .driver_data = SB_HW_ALS100 },
  	{ .id = "" } /* end */
  };
  
  MODULE_DEVICE_TABLE(pnp_card, snd_als100_pnpids);
  
  static int __devinit snd_card_als100_pnp(int dev, struct snd_card_als100 *acard,
  					 struct pnp_card_link *card,
  					 const struct pnp_card_device_id *id)
  {
  	struct pnp_dev *pdev;
  	int err;
  
  	acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
  	if (acard->dev == NULL)
  		return -ENODEV;
  
  	acard->devmpu = pnp_request_card_device(card, id->devs[1].id, acard->dev);
  	acard->devopl = pnp_request_card_device(card, id->devs[2].id, acard->dev);
  
  	pdev = acard->dev;
  
  	err = pnp_activate_dev(pdev);
  	if (err < 0) {
  		snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
  		return err;
  	}
  	port[dev] = pnp_port_start(pdev, 0);
  	if (id->driver_data == SB_HW_DT019X)
  		dma8[dev] = pnp_dma(pdev, 0);
  	else {
  		dma8[dev] = pnp_dma(pdev, 1);
  		dma16[dev] = pnp_dma(pdev, 0);
  	}
  	irq[dev] = pnp_irq(pdev, 0);
  
  	pdev = acard->devmpu;
  	if (pdev != NULL) {
  		err = pnp_activate_dev(pdev);
  		if (err < 0)
  			goto __mpu_error;
  		mpu_port[dev] = pnp_port_start(pdev, 0);
  		mpu_irq[dev] = pnp_irq(pdev, 0);
  	} else {
  	     __mpu_error:
  	     	if (pdev) {
  		     	pnp_release_card_device(pdev);
  	     		snd_printk(KERN_ERR PFX "MPU401 pnp configure failure, skipping\n");
  	     	}
  	     	acard->devmpu = NULL;
  	     	mpu_port[dev] = -1;
  	}
  
  	pdev = acard->devopl;
  	if (pdev != NULL) {
  		err = pnp_activate_dev(pdev);
  		if (err < 0)
  			goto __fm_error;
  		fm_port[dev] = pnp_port_start(pdev, 0);
  	} else {
  	      __fm_error:
  	     	if (pdev) {
  		     	pnp_release_card_device(pdev);
  	     		snd_printk(KERN_ERR PFX "OPL3 pnp configure failure, skipping\n");
  	     	}
  	     	acard->devopl = NULL;
  	     	fm_port[dev] = -1;
  	}
  
  	return 0;
  }
  
  static int __devinit snd_card_als100_probe(int dev,
  					struct pnp_card_link *pcard,
  					const struct pnp_card_device_id *pid)
  {
  	int error;
  	struct snd_sb *chip;
  	struct snd_card *card;
  	struct snd_card_als100 *acard;
  	struct snd_opl3 *opl3;
  
  	error = snd_card_create(index[dev], id[dev], THIS_MODULE,
  				sizeof(struct snd_card_als100), &card);
  	if (error < 0)
  		return error;
  	acard = card->private_data;
  
  	if ((error = snd_card_als100_pnp(dev, acard, pcard, pid))) {
  		snd_card_free(card);
  		return error;
  	}
  	snd_card_set_dev(card, &pcard->card->dev);
  
  	if (pid->driver_data == SB_HW_DT019X)
  		dma16[dev] = -1;
  
  	error = snd_sbdsp_create(card, port[dev], irq[dev],
  				  snd_sb16dsp_interrupt,
  				  dma8[dev], dma16[dev],
  				  pid->driver_data,
  				  &chip);
  	if (error < 0) {
  		snd_card_free(card);
  		return error;
  	}
  	acard->chip = chip;
  
  	if (pid->driver_data == SB_HW_DT019X) {
  		strcpy(card->driver, "DT-019X");
  		strcpy(card->shortname, "Diamond Tech. DT-019X");
  		sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d",
  			card->shortname, chip->name, chip->port,
  			irq[dev], dma8[dev]);
  	} else {
  		strcpy(card->driver, "ALS100");
  		strcpy(card->shortname, "Avance Logic ALS100");
  		sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d&%d",
  			card->shortname, chip->name, chip->port,
  			irq[dev], dma8[dev], dma16[dev]);
  	}
  
  	if ((error = snd_sb16dsp_pcm(chip, 0, NULL)) < 0) {
  		snd_card_free(card);
  		return error;
  	}
  
  	if ((error = snd_sbmixer_new(chip)) < 0) {
  		snd_card_free(card);
  		return error;
  	}
  
  	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
  		int mpu_type = MPU401_HW_ALS100;
  
  		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
  			mpu_irq[dev] = -1;
  
  		if (pid->driver_data == SB_HW_DT019X)
  			mpu_type = MPU401_HW_MPU401;
  
  		if (snd_mpu401_uart_new(card, 0,
  					mpu_type,
  					mpu_port[dev], 0, 
  					mpu_irq[dev],
  					NULL) < 0)
  			snd_printk(KERN_ERR PFX "no MPU-401 device at 0x%lx\n", mpu_port[dev]);
  	}
  
  	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
  		if (snd_opl3_create(card,
  				    fm_port[dev], fm_port[dev] + 2,
  				    OPL3_HW_AUTO, 0, &opl3) < 0) {
  			snd_printk(KERN_ERR PFX "no OPL device at 0x%lx-0x%lx\n",
  				   fm_port[dev], fm_port[dev] + 2);
  		} else {
  			if ((error = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
  				snd_card_free(card);
  				return error;
  			}
  			if ((error = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
  				snd_card_free(card);
  				return error;
  			}
  		}
  	}
  
  	if ((error = snd_card_register(card)) < 0) {
  		snd_card_free(card);
  		return error;
  	}
  	pnp_set_card_drvdata(pcard, card);
  	return 0;
  }
  
  static unsigned int __devinitdata als100_devices;
  
  static int __devinit snd_als100_pnp_detect(struct pnp_card_link *card,
  					   const struct pnp_card_device_id *id)
  {
  	static int dev;
  	int res;
  
  	for ( ; dev < SNDRV_CARDS; dev++) {
  		if (!enable[dev])
  			continue;
  		res = snd_card_als100_probe(dev, card, id);
  		if (res < 0)
  			return res;
  		dev++;
  		als100_devices++;
  		return 0;
  	}
  	return -ENODEV;
  }
  
  static void __devexit snd_als100_pnp_remove(struct pnp_card_link * pcard)
  {
  	snd_card_free(pnp_get_card_drvdata(pcard));
  	pnp_set_card_drvdata(pcard, NULL);
  }
  
  #ifdef CONFIG_PM
  static int snd_als100_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
  {
  	struct snd_card *card = pnp_get_card_drvdata(pcard);
  	struct snd_card_als100 *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_als100_pnp_resume(struct pnp_card_link *pcard)
  {
  	struct snd_card *card = pnp_get_card_drvdata(pcard);
  	struct snd_card_als100 *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
  
  static struct pnp_card_driver als100_pnpc_driver = {
  	.flags          = PNP_DRIVER_RES_DISABLE,
  	.name		= "als100",
          .id_table       = snd_als100_pnpids,
          .probe          = snd_als100_pnp_detect,
          .remove         = __devexit_p(snd_als100_pnp_remove),
  #ifdef CONFIG_PM
  	.suspend	= snd_als100_pnp_suspend,
  	.resume		= snd_als100_pnp_resume,
  #endif
  };
  
  static int __init alsa_card_als100_init(void)
  {
  	int err;
  
  	err = pnp_register_card_driver(&als100_pnpc_driver);
  	if (err)
  		return err;
  
  	if (!als100_devices) {
  		pnp_unregister_card_driver(&als100_pnpc_driver);
  #ifdef MODULE
  		snd_printk(KERN_ERR "no Avance Logic based soundcards found\n");
  #endif
  		return -ENODEV;
  	}
  	return 0;
  }
  
  static void __exit alsa_card_als100_exit(void)
  {
  	pnp_unregister_card_driver(&als100_pnpc_driver);
  }
  
  module_init(alsa_card_als100_init)
  module_exit(alsa_card_als100_exit)
  