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als100.c

/*
    card-als100.c - driver for Avance Logic ALS100 based soundcards.
    Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>

    Thanks to Pierfrancesco 'qM2' Passerini.

    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/moduleparam.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_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
MODULE_DESCRIPTION("Avance Logic ALS1X0");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS100 - PRO16PNP},"
              "{Avance Logic,ALS110},"
              "{Avance Logic,ALS120},"
              "{Avance Logic,ALS200},"
              "{3D Melody,MF1000},"
              "{Digimate,3D Sound},"
              "{Avance Logic,ALS120},"
              "{RTL,RTL3000}}");

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_ISAPNP; /* 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 als100 based soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for als100 based soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable als100 based soundcard.");

struct snd_card_als100 {
      int dev_no;
      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[] = {
      /* ALS100 - PRO16PNP */
      { .id = "ALS0001", .devs = { { "@@@0001" }, { "@X@0001" }, { "@H@0001" } } },
      /* ALS110 - MF1000 - Digimate 3D Sound */
      { .id = "ALS0110", .devs = { { "@@@1001" }, { "@X@1001" }, { "@H@1001" } } },
      /* ALS120 */
      { .id = "ALS0120", .devs = { { "@@@2001" }, { "@X@2001" }, { "@H@2001" } } },
      /* ALS200 */
      { .id = "ALS0200", .devs = { { "@@@0020" }, { "@X@0020" }, { "@H@0001" } } },
      /* ALS200 OEM */
      { .id = "ALS0200", .devs = { { "@@@0020" }, { "@X@0020" }, { "@H@0020" } } },
      /* RTL3000 */
      { .id = "RTL3000", .devs = { { "@@@2001" }, { "@X@2001" }, { "@H@2001" } } },
      { .id = "", } /* end */
};

MODULE_DEVICE_TABLE(pnp_card, snd_als100_pnpids);

#define DRIVER_NAME     "snd-card-als100"

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);
      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;

      if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
                         sizeof(struct snd_card_als100))) == NULL)
            return -ENOMEM;
      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 ((error = snd_sbdsp_create(card, port[dev],
                              irq[dev],
                              snd_sb16dsp_interrupt,
                              dma8[dev],
                              dma16[dev],
                              SB_HW_ALS100, &chip)) < 0) {
            snd_card_free(card);
            return error;
      }
      acard->chip = chip;

      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) {
            if (snd_mpu401_uart_new(card, 0, MPU401_HW_ALS100,
                              mpu_port[dev], 0, 
                              mpu_irq[dev], IRQF_DISABLED,
                              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 ALS100 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)

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