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cs4236.c

/*
 *  Driver for generic CS4232/CS4235/CS4236/CS4236B/CS4237B/CS4238B/CS4239 chips
 *  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/slab.h>
#include <linux/pnp.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/cs4231.h>
#include <sound/mpu401.h>
#include <sound/opl3.h>
#include <sound/initval.h>

MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_LICENSE("GPL");
#ifdef CS4232
MODULE_DESCRIPTION("Cirrus Logic CS4232");
MODULE_SUPPORTED_DEVICE("{{Turtle Beach,TBS-2000},"
            "{Turtle Beach,Tropez Plus},"
            "{SIC CrystalWave 32},"
            "{Hewlett Packard,Omnibook 5500},"
            "{TerraTec,Maestro 32/96},"
            "{Philips,PCA70PS}}");
#else
MODULE_DESCRIPTION("Cirrus Logic CS4235-9");
MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4235},"
            "{Crystal Semiconductors,CS4236},"
            "{Crystal Semiconductors,CS4237},"
            "{Crystal Semiconductors,CS4238},"
            "{Crystal Semiconductors,CS4239},"
            "{Acer,AW37},"
            "{Acer,AW35/Pro},"
            "{Crystal,3D},"
            "{Crystal Computer,TidalWave128},"
            "{Dell,Optiplex GX1},"
            "{Dell,Workstation 400 sound},"
            "{EliteGroup,P5TX-LA sound},"
            "{Gallant,SC-70P},"
            "{Gateway,E1000 Onboard CS4236B},"
            "{Genius,Sound Maker 3DJ},"
            "{Hewlett Packard,HP6330 sound},"
            "{IBM,PC 300PL sound},"
            "{IBM,Aptiva 2137 E24},"
            "{IBM,IntelliStation M Pro},"
            "{Intel,Marlin Spike Mobo CS4235},"
            "{Intel PR440FX Onboard},"
            "{Guillemot,MaxiSound 16 PnP},"
            "{NewClear,3D},"
            "{TerraTec,AudioSystem EWS64L/XL},"
            "{Typhoon Soundsystem,CS4236B},"
            "{Turtle Beach,Malibu},"
            "{Unknown,Digital PC 5000 Onboard}}");
#endif

#ifdef CS4232
#define IDENT "CS4232"
#else
#define IDENT "CS4236+"
#endif

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 */
#ifdef CONFIG_PNP
static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
#endif
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;   /* PnP setup */
static long cport[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 long sb_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;      /* PnP setup */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;      /* 5,7,9,11,12,15 */
static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;  /* 9,11,12,15 */
static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;     /* 0,1,3,5,6,7 */
static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;     /* 0,1,3,5,6,7 */

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " IDENT " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " IDENT " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " IDENT " soundcard.");
#ifdef CONFIG_PNP
module_param_array(isapnp, bool, NULL, 0444);
MODULE_PARM_DESC(isapnp, "ISA PnP detection for specified soundcard.");
#endif
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for " IDENT " driver.");
module_param_array(cport, long, NULL, 0444);
MODULE_PARM_DESC(cport, "Control port # for " IDENT " driver.");
module_param_array(mpu_port, long, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " IDENT " driver.");
module_param_array(fm_port, long, NULL, 0444);
MODULE_PARM_DESC(fm_port, "FM port # for " IDENT " driver.");
module_param_array(sb_port, long, NULL, 0444);
MODULE_PARM_DESC(sb_port, "SB port # for " IDENT " driver (optional).");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for " IDENT " driver.");
module_param_array(mpu_irq, int, NULL, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " IDENT " driver.");
module_param_array(dma1, int, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for " IDENT " driver.");
module_param_array(dma2, int, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");

struct snd_card_cs4236 {
      struct resource *res_sb_port;
#ifdef CONFIG_PNP
      struct pnp_dev *wss;
      struct pnp_dev *ctrl;
      struct pnp_dev *mpu;
#endif
};

static snd_card_t *snd_cs4236_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;

#ifdef CONFIG_PNP

#define ISAPNP_CS4232(_va, _vb, _vc, _device, _wss, _ctrl, _mpu401) \
      { \
            ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
            .devs = { ISAPNP_DEVICE_ID(_va, _vb, _vc, _wss), \
                          ISAPNP_DEVICE_ID(_va, _vb, _vc, _ctrl), \
                    ISAPNP_DEVICE_ID(_va, _vb, _vc, _mpu401) } \
        }
#define ISAPNP_CS4232_1(_va, _vb, _vc, _device, _wss, _ctrl, _mpu401) \
      { \
            ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
            .devs = { ISAPNP_DEVICE_ID(_va, _vb, _vc, _wss), \
                          ISAPNP_DEVICE_ID(_va, _vb, _vc, _ctrl), \
                    ISAPNP_DEVICE_ID('P', 'N', 'P', _mpu401) } \
        }
#define ISAPNP_CS4232_WOMPU(_va, _vb, _vc, _device, _wss, _ctrl) \
      { \
            ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
            .devs = { ISAPNP_DEVICE_ID(_va, _vb, _vc, _wss), \
                          ISAPNP_DEVICE_ID(_va, _vb, _vc, _ctrl) } \
        }


#ifdef CS4232
static struct pnp_card_device_id snd_cs423x_pnpids[] = {
      /* Philips PCA70PS */
      { .id = "CSC0d32", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
      /* TerraTec Maestro 32/96 (CS4232) */
      { .id = "CSC1a32", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* HP Omnibook 5500 onboard */
      { .id = "CSC4232", .devs = { { "CSC0000" }, { "CSC0002" }, { "CSC0003" } } },
      /* Unnamed CS4236 card (Made in Taiwan) */
      { .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Turtle Beach TBS-2000 (CS4232) */
      { .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSCb006" } } },
      /* Turtle Beach Tropez Plus (CS4232) */
      { .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
      /* SIC CrystalWave 32 (CS4232) */
      { .id = "CSCf032", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* --- */
      { .id = "" }      /* end */
};
#else /* CS4236 */
static struct pnp_card_device_id snd_cs423x_pnpids[] = {
      /* Intel Marlin Spike Motherboard - CS4235 */
      { .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Intel Marlin Spike Motherboard (#2) - CS4235 */
      { .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
      /* Unknown Intel mainboard - CS4235 */
      { .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" } } },
      /* Genius Sound Maker 3DJ - CS4237B */
      { .id = "CSC0437", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Digital PC 5000 Onboard - CS4236B */
      { .id = "CSC0735", .devs = { { "CSC0000" }, { "CSC0010" } } },
      /* some uknown CS4236B */
      { .id = "CSC0b35", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Intel PR440FX Onboard sound */
      { .id = "CSC0b36", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* CS4235 on mainboard without MPU */
      { .id = "CSC1425", .devs = { { "CSC0100" }, { "CSC0110" } } },
      /* Gateway E1000 Onboard CS4236B */
      { .id = "CSC1335", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* HP 6330 Onboard sound */
      { .id = "CSC1525", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
      /* Crystal Computer TidalWave128 */
      { .id = "CSC1e37", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* ACER AW37 - CS4235 */
      { .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* build-in soundcard in EliteGroup P5TX-LA motherboard - CS4237B */
      { .id = "CSC4237", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Crystal 3D - CS4237B */
      { .id = "CSC4336", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Typhoon Soundsystem PnP - CS4236B */
      { .id = "CSC4536", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Crystal CX4235-XQ3 EP - CS4235 */
      { .id = "CSC4625", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
      /* Crystal Semiconductors CS4237B */
      { .id = "CSC4637", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* NewClear 3D - CX4237B-XQ3 */
      { .id = "CSC4837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Dell Optiplex GX1 - CS4236B */
      { .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Dell P410 motherboard - CS4236B */
      { .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" } } },
      /* Dell Workstation 400 Onboard - CS4236B */
      { .id = "CSC6836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Turtle Beach Malibu - CS4237B */
      { .id = "CSC7537", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* CS4235 - onboard */
      { .id = "CSC8025", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
      /* IBM Aptiva 2137 E24 Onboard - CS4237B */
      { .id = "CSC8037", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* IBM IntelliStation M Pro motherboard */
      { .id = "CSCc835", .devs = { { "CSC0000" }, { "CSC0010" } } },
      /* Guillemot MaxiSound 16 PnP - CS4236B */
      { .id = "CSC9836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* Gallant SC-70P */
      { .id = "CSC9837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* TerraTec AudioSystem EWS64XL - CS4236B */
      { .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" }, { "CSCa803" } } },
      /* TerraTec AudioSystem EWS64XL - CS4236B */
      { .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" } } },
      /* ACER AW37/Pro - CS4235 */
      { .id = "CSCd925", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* ACER AW35/Pro - CS4237B */
      { .id = "CSCd937", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* CS4235 without MPU401 */
      { .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" } } },
      /* Unknown SiS530 - CS4235 */
      { .id = "CSC4825", .devs = { { "CSC0100" }, { "CSC0110" } } },
      /* IBM IntelliStation M Pro 6898 11U - CS4236B */
      { .id = "CSCe835", .devs = { { "CSC0000" }, { "CSC0010" } } },
      /* IBM PC 300PL Onboard - CS4236B */
      { .id = "CSCe836", .devs = { { "CSC0000" }, { "CSC0010" } } },
      /* Some noname CS4236 based card */
      { .id = "CSCe936", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* CS4236B */
      { .id = "CSCf235", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* CS4236B */
      { .id = "CSCf238", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
      /* --- */
      { .id = "" }      /* end */
};
#endif

MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);

static int __devinit snd_card_cs4236_pnp(int dev, struct snd_card_cs4236 *acard,
                               struct pnp_card_link *card,
                               const struct pnp_card_device_id *id)
{
      struct pnp_dev *pdev;
      struct pnp_resource_table * cfg = kmalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
      int err;

      if (!cfg)
            return -ENOMEM;

      acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL);
      if (acard->wss == NULL) {
            kfree(cfg);
            return -EBUSY;
      }
      acard->ctrl = pnp_request_card_device(card, id->devs[1].id, NULL);
      if (acard->ctrl == NULL) {
            kfree(cfg);
            return -EBUSY;
      }
      if (id->devs[2].id[0]) {
            acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);
            if (acard->mpu == NULL) {
                  kfree(cfg);
                  return -EBUSY;
            }
      }

      /* WSS initialization */
      pdev = acard->wss;
      pnp_init_resource_table(cfg);
      if (port[dev] != SNDRV_AUTO_PORT)
            pnp_resource_change(&cfg->port_resource[0], port[dev], 4);
      if (fm_port[dev] != SNDRV_AUTO_PORT && fm_port[dev] > 0)
            pnp_resource_change(&cfg->port_resource[1], fm_port[dev], 4);
      if (sb_port[dev] != SNDRV_AUTO_PORT)
            pnp_resource_change(&cfg->port_resource[2], sb_port[dev], 16);
      if (irq[dev] != SNDRV_AUTO_IRQ)
            pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
      if (dma1[dev] != SNDRV_AUTO_DMA)
            pnp_resource_change(&cfg->dma_resource[0], dma1[dev], 1);
      if (dma2[dev] != SNDRV_AUTO_DMA)
            pnp_resource_change(&cfg->dma_resource[1], dma2[dev] < 0 ? 4 : dma2[dev], 1);
      err = pnp_manual_config_dev(pdev, cfg, 0);
      if (err < 0)
            snd_printk(KERN_ERR IDENT " WSS PnP manual resources are invalid, using auto config\n");
      err = pnp_activate_dev(pdev);
      if (err < 0) {
            kfree(cfg);
            printk(KERN_ERR IDENT " WSS PnP configure failed for WSS (out of resources?)\n");
            return -EBUSY;
      }
      port[dev] = pnp_port_start(pdev, 0);
      if (fm_port[dev] > 0)
            fm_port[dev] = pnp_port_start(pdev, 1);
      sb_port[dev] = pnp_port_start(pdev, 2);
      irq[dev] = pnp_irq(pdev, 0);
      dma1[dev] = pnp_dma(pdev, 0);
      dma2[dev] = pnp_dma(pdev, 1) == 4 ? -1 : (int)pnp_dma(pdev, 1);
      snd_printdd("isapnp WSS: wss port=0x%lx, fm port=0x%lx, sb port=0x%lx\n",
                  port[dev], fm_port[dev], sb_port[dev]);
      snd_printdd("isapnp WSS: irq=%i, dma1=%i, dma2=%i\n",
                  irq[dev], dma1[dev], dma2[dev]);
      /* CTRL initialization */
      if (acard->ctrl && cport[dev] > 0) {
            pdev = acard->ctrl;
            pnp_init_resource_table(cfg);
            if (cport[dev] != SNDRV_AUTO_PORT)
                  pnp_resource_change(&cfg->port_resource[0], cport[dev], 8);
            err = pnp_manual_config_dev(pdev, cfg, 0);
            if (err < 0)
                  snd_printk(KERN_ERR IDENT " CTRL PnP manual resources are invalid, using auto config\n");
            err = pnp_activate_dev(pdev);
            if (err < 0) {
                  kfree(cfg);
                  printk(KERN_ERR IDENT " CTRL PnP configure failed for WSS (out of resources?)\n");
                  return -EBUSY;
            }
            cport[dev] = pnp_port_start(pdev, 0);
            snd_printdd("isapnp CTRL: control port=0x%lx\n", cport[dev]);
      }
      /* MPU initialization */
      if (acard->mpu && mpu_port[dev] > 0) {
            pdev = acard->mpu;
            pnp_init_resource_table(cfg);
            if (mpu_port[dev] != SNDRV_AUTO_PORT)
                  pnp_resource_change(&cfg->port_resource[0], mpu_port[dev], 2);
            if (mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] >= 0)
                  pnp_resource_change(&cfg->irq_resource[0], mpu_irq[dev], 1);
            err = pnp_manual_config_dev(pdev, cfg, 0);
            if (err < 0)
                  snd_printk(KERN_ERR IDENT " MPU401 PnP manual resources are invalid, using auto config\n");
            err = pnp_activate_dev(pdev);
            if (err < 0) {
                  printk(KERN_ERR IDENT " MPU401 PnP configure failed for WSS (out of resources?)\n");
                  mpu_port[dev] = SNDRV_AUTO_PORT;
                  mpu_irq[dev] = SNDRV_AUTO_IRQ;
            } else {
                  mpu_port[dev] = pnp_port_start(pdev, 0);
                  if (mpu_irq[dev] >= 0 &&
                      pnp_irq_valid(pdev, 0) && pnp_irq(pdev, 0) >= 0) {
                        mpu_irq[dev] = pnp_irq(pdev, 0);
                  } else {
                        mpu_irq[dev] = -1;      /* disable interrupt */
                  }
            }
            snd_printdd("isapnp MPU: port=0x%lx, irq=%i\n", mpu_port[dev], mpu_irq[dev]);
      }
      kfree(cfg);
      return 0;
}
#endif /* CONFIG_PNP */

static void snd_card_cs4236_free(snd_card_t *card)
{
      struct snd_card_cs4236 *acard = (struct snd_card_cs4236 *)card->private_data;

      if (acard)
            release_and_free_resource(acard->res_sb_port);
}

#ifdef CONFIG_PNP
#define is_isapnp_selected(dev)           isapnp[dev]
#else
#define is_isapnp_selected(dev)           0
#endif

static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
                                 const struct pnp_card_device_id *pid)
{
      snd_card_t *card;
      struct snd_card_cs4236 *acard;
      snd_pcm_t *pcm = NULL;
      cs4231_t *chip;
      opl3_t *opl3;
      int err;

      if (! is_isapnp_selected(dev)) {
            if (port[dev] == SNDRV_AUTO_PORT) {
                  snd_printk(KERN_ERR "specify port\n");
                  return -EINVAL;
            }
            if (cport[dev] == SNDRV_AUTO_PORT) {
                  snd_printk(KERN_ERR "specify cport\n");
                  return -EINVAL;
            }
      }
      card = snd_card_new(index[dev], id[dev], THIS_MODULE,
                      sizeof(struct snd_card_cs4236));
      if (card == NULL)
            return -ENOMEM;
      acard = (struct snd_card_cs4236 *)card->private_data;
      card->private_free = snd_card_cs4236_free;
#ifdef CONFIG_PNP
      if (isapnp[dev]) {
            if ((err = snd_card_cs4236_pnp(dev, acard, pcard, pid))<0) {
                  printk(KERN_ERR "isapnp detection failed and probing for " IDENT " is not supported\n");
                  goto _err;
            }
            snd_card_set_dev(card, &pcard->card->dev);
      }
#endif
      if (sb_port[dev] > 0 && sb_port[dev] != SNDRV_AUTO_PORT)
            if ((acard->res_sb_port = request_region(sb_port[dev], 16, IDENT " SB")) == NULL) {
                  printk(KERN_ERR IDENT ": unable to register SB port at 0x%lx\n", sb_port[dev]);
                  err = -EBUSY;
                  goto _err;
            }

#ifdef CS4232
      if ((err = snd_cs4231_create(card,
                             port[dev],
                             cport[dev],
                             irq[dev],
                             dma1[dev],
                             dma2[dev],
                             CS4231_HW_DETECT,
                             0,
                             &chip)) < 0)
            goto _err;

      if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0)
            goto _err;

      if ((err = snd_cs4231_mixer(chip)) < 0)
            goto _err;

#else /* CS4236 */
      if ((err = snd_cs4236_create(card,
                             port[dev],
                             cport[dev],
                             irq[dev],
                             dma1[dev],
                             dma2[dev],
                             CS4231_HW_DETECT,
                             0,
                             &chip)) < 0)
            goto _err;

      if ((err = snd_cs4236_pcm(chip, 0, &pcm)) < 0)
            goto _err;

      if ((err = snd_cs4236_mixer(chip)) < 0)
            goto _err;
#endif
      strcpy(card->driver, pcm->name);
      strcpy(card->shortname, pcm->name);
      sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i",
            pcm->name,
            chip->port,
            irq[dev],
            dma1[dev]);
      if (dma2[dev] >= 0)
            sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);

      if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0)
            goto _err;

      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_OPL3_CS, 0, &opl3) < 0) {
                  printk(KERN_WARNING IDENT ": OPL3 not detected\n");
            } else {
                  if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
                        goto _err;
            }
      }

      if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
            if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
                  mpu_irq[dev] = -1;
            if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
                              mpu_port[dev], 0,
                              mpu_irq[dev],
                              mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0, NULL) < 0)
                  printk(KERN_WARNING IDENT ": MPU401 not detected\n");
      }

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

      if ((err = snd_card_register(card)) < 0)
            goto _err;
      if (pcard)
            pnp_set_card_drvdata(pcard, card);
      else
            snd_cs4236_legacy[dev] = card;
      return 0;

 _err:
      snd_card_free(card);
      return err;
}

#ifdef CONFIG_PNP
static int __devinit snd_cs423x_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] || !isapnp[dev])
                  continue;
            res = snd_card_cs423x_probe(dev, card, id);
            if (res < 0)
                  return res;
            dev++;
            return 0;
      }
      return -ENODEV;
}

static void __devexit snd_cs423x_pnp_remove(struct pnp_card_link * pcard)
{
      snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard);
        
      snd_card_disconnect(card);
      snd_card_free_in_thread(card);
}
                        
static struct pnp_card_driver cs423x_pnpc_driver = {
      .flags = PNP_DRIVER_RES_DISABLE,
      .name = "cs423x",
      .id_table = snd_cs423x_pnpids,
      .probe = snd_cs423x_pnp_detect,
      .remove = __devexit_p(snd_cs423x_pnp_remove),
};
#endif /* CONFIG_PNP */

static int __init alsa_card_cs423x_init(void)
{
      int dev, cards = 0;

      for (dev = 0; dev < SNDRV_CARDS; dev++) {
            if (!enable[dev])
                  continue;
            if (is_isapnp_selected(dev))
                  continue;
            if (snd_card_cs423x_probe(dev, NULL, NULL) >= 0)
                  cards++;
      }
#ifdef CONFIG_PNP
      cards += pnp_register_card_driver(&cs423x_pnpc_driver);
#endif
      if (!cards) {
#ifdef CONFIG_PNP
            pnp_unregister_card_driver(&cs423x_pnpc_driver);
#endif
#ifdef MODULE
            printk(KERN_ERR IDENT " soundcard not found or device busy\n");
#endif
            return -ENODEV;
      }
      return 0;
}

static void __exit alsa_card_cs423x_exit(void)
{
      int idx;

#ifdef CONFIG_PNP
      /* PnP cards first */
      pnp_unregister_card_driver(&cs423x_pnpc_driver);
#endif
      for (idx = 0; idx < SNDRV_CARDS; idx++)
            snd_card_free(snd_cs4236_legacy[idx]);
}

module_init(alsa_card_cs423x_init)
module_exit(alsa_card_cs423x_exit)

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