Imported Upstream version 4.2-build2006upstream/4.2-build2006upstream

1 files changed, 898 insertions, 0 deletions

diff --git a/attic/drv/oss_als3xx/oss_als3xx.c b/attic/drv/oss_als3xx/oss_als3xx.c
new file mode 100644
index 0000000..bfc8fa3
--- /dev/null
+++ b/attic/drv/oss_als3xx/oss_als3xx.c
@@ -0,0 +1,898 @@
+/*
+ * Purpose: Driver for ALS ALS300 PCI audio controller.
+ */
+/*
+ *
+ * This file is part of Open Sound System.
+ *
+ * Copyright (C) 4Front Technologies 1996-2008.
+ *
+ * This this source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ */
+
+#include "oss_als3xx_cfg.h"
+#include "oss_pci.h"
+#include "ac97.h"
+#include "als300.h"
+
+#define ALS_VENDOR_ID	0x4005
+#define ALS_300		0x0300
+#define ALS_300P	0x0308
+
+extern int als300_mpu_base;
+
+#define MAX_PORTC 2
+
+typedef struct als300_portc
+{
+  int speed, bits, channels;
+  int open_mode;
+  int audio_enabled;
+  int trigger_bits;
+  int audiodev;
+}
+als300_portc;
+
+typedef struct als300_devc
+{
+  oss_device_t *osdev;
+  oss_native_word base, mpu_base;
+  int mpu_attached, fm_attached;
+  int irq;
+
+  volatile unsigned char intr_mask;
+#define MDL_ALS300		0
+#define MDL_ALS300PLUS          1
+  int model;
+  char *chip_name;
+  unsigned char chip_rev;
+  oss_mutex_t mutex;
+  oss_mutex_t low_mutex;
+
+  /* Audio parameters */
+  int open_mode;
+  als300_portc portc[2];
+  oss_native_word srcode;
+
+  /* Mixer parameters */
+  ac97_devc ac97devc;
+  int mixer_dev;
+}
+als300_devc;
+
+
+void
+gcr_writel (als300_devc * devc, unsigned char index, oss_native_word data)
+{
+  OUTB (devc->osdev, index, devc->base + 0x0c);
+  OUTL (devc->osdev, data, devc->base + 0x08);
+}
+
+
+oss_native_word
+gcr_readl (als300_devc * devc, unsigned char index)
+{
+  oss_native_word bufl;
+  OUTB (devc->osdev, index, devc->base + 0x0c);
+  bufl = INL (devc->osdev, devc->base + 0x08);
+  return (bufl);
+}
+
+static int
+ac97_write (void *devc_, int index, int data)
+{
+  oss_native_word access;
+  unsigned i, N;
+  unsigned char byte;
+  als300_devc *devc = devc_;
+  oss_native_word flags;
+
+  MUTEX_ENTER_IRQDISABLE (devc->low_mutex, flags);
+  i = 0;
+  N = 1000;
+  do
+    {
+      byte = INB (devc->osdev, devc->base + 6) & 0x80;
+      if (byte == 0x00)
+	goto go;
+      oss_udelay (10);
+      i++;
+    }
+  while (i < N);
+  if (i >= N)
+    cmn_err (CE_WARN, "\n Write AC97 mixer index time out !!");
+go:
+  access = index;
+  access <<= 24;		/*index */
+  access &= 0x7fffffff;		/*write */
+  access |= data;		/*data */
+  OUTL (devc->osdev, access, devc->base);
+  MUTEX_EXIT_IRQRESTORE (devc->low_mutex, flags);
+  return 0;
+}
+
+static int
+ac97_read (void *devc_, int index)
+{
+  oss_native_word access;
+  unsigned int data;
+  unsigned i, N;
+  unsigned char byte;
+  oss_native_word flags;
+  als300_devc *devc = devc_;
+
+  MUTEX_ENTER_IRQDISABLE (devc->low_mutex, flags);
+  i = 0;
+  N = 1000;
+  do
+    {
+      byte = INB (devc->osdev, devc->base + 6) & 0x80;
+      if (byte == 0x00)
+	goto next;
+      oss_udelay (10);
+      i++;
+    }
+  while (i < N);
+  if (i >= N)
+    cmn_err (CE_WARN, "\n Write AC97 mixer index time out !!");
+next:
+  access = index;
+  access <<= 24;		/*index */
+  access |= 0x80000000;
+  OUTL (devc->osdev, access, devc->base);
+
+  i = 0;
+  N = 1000;
+  do
+    {
+      byte = INB (devc->osdev, devc->base + 6);
+      if ((byte & 0x40) != 0)
+	goto next1;
+      oss_udelay (10);
+      i++;
+    }
+  while (i < N);
+  if (i >= N)
+    cmn_err (CE_WARN, "Read AC97 mixer data time out !!");
+next1:
+  data = INW (devc->osdev, devc->base + 0x04);
+  MUTEX_EXIT_IRQRESTORE (devc->low_mutex, flags);
+  return data;
+}
+
+static int
+als300intr (oss_device_t * osdev)
+{
+  als300_devc *devc = (als300_devc *) osdev->devc;
+  int i;
+  unsigned int status, mpustatus, serviced = 0;
+
+  /* Get the status */
+  if (devc->model == MDL_ALS300)
+    status = INB (devc->osdev, devc->base + 0x07);
+  else
+    status = INB (devc->osdev, devc->base + 0xF);
+
+  /* if playback - do output */
+  for (i = 0; i < MAX_PORTC; i++)
+    {
+      als300_portc *portc = &devc->portc[i];
+
+      if (status & 0x08)
+	{
+	  serviced = 1;
+	  if (portc->trigger_bits & PCM_ENABLE_OUTPUT)
+	    oss_audio_outputintr (portc->audiodev, 1);
+	}
+
+      /* if record - do input */
+      if (status & 0x04)
+	{
+	  serviced = 1;
+	  if (portc->trigger_bits & PCM_ENABLE_INPUT)
+	    oss_audio_inputintr (portc->audiodev, 0);
+	}
+    }
+
+  /* Handle the UART401 Interrupt */
+  if (devc->model == MDL_ALS300)
+    {
+      mpustatus = INB (devc->osdev, devc->base + 0x0E);
+      if ((mpustatus & 0x10) || (status & 0x80))
+	{
+	  serviced = 1;
+/*	      uart401intr (INT_HANDLER_CALL (devc->irq)); */
+	}
+    }
+  else
+    {
+      if (status & 0x40)
+	{
+	  serviced = 1;
+/*	      uart401intr (INT_HANDLER_CALL (devc->irq)); */
+	}
+    }
+
+  /* Acknowledge the interrupt */
+  if (status)
+    {
+      if (devc->model == MDL_ALS300)
+	{
+	  OUTB (devc->osdev, status, devc->base + 0x07);	/* acknowledge interrupt */
+	}
+      else
+	{
+	  OUTB (devc->osdev, status, devc->base + 0xF);	/* acknowledge interrupt */
+	}
+    }
+  return serviced;
+}
+
+static int
+als300_audio_set_rate (int dev, int arg)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+
+  if (arg == 0)
+    return portc->speed;
+
+  if (audio_engines[dev]->flags & ADEV_FIXEDRATE)
+    arg = 48000;
+
+  if (arg > 48000)
+    arg = 48000;
+  if (arg < 5000)
+    arg = 5000;
+  portc->speed = arg;
+  return portc->speed;
+}
+
+static short
+als300_audio_set_channels (int dev, short arg)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+
+  if (arg == 0)
+    return portc->channels;
+
+  if (audio_engines[dev]->flags & ADEV_STEREOONLY)
+    arg = 2;
+
+  if ((arg != 1) && (arg != 2))
+    return portc->channels;
+  portc->channels = arg;
+
+  return portc->channels;
+}
+
+static unsigned int
+als300_audio_set_format (int dev, unsigned int arg)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+
+  if (arg == 0)
+    return portc->bits;
+
+  if (audio_engines[dev]->flags & ADEV_16BITONLY)
+    arg = 16;
+  if (!(arg & (AFMT_U8 | AFMT_S16_LE)))
+    return portc->bits;
+  portc->bits = arg;
+
+  return portc->bits;
+}
+
+/*ARGSUSED*/
+static int
+als300_audio_ioctl (int dev, unsigned int cmd, ioctl_arg arg)
+{
+  return OSS_EINVAL;
+}
+
+static void als300_audio_trigger (int dev, int state);
+
+static void
+als300_audio_reset (int dev)
+{
+  als300_audio_trigger (dev, 0);
+}
+
+static void
+als300_audio_reset_input (int dev)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+  als300_audio_trigger (dev, portc->trigger_bits & ~PCM_ENABLE_INPUT);
+}
+
+static void
+als300_audio_reset_output (int dev)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+  als300_audio_trigger (dev, portc->trigger_bits & ~PCM_ENABLE_OUTPUT);
+}
+
+/*ARGSUSED*/
+static int
+als300_audio_open (int dev, int mode, int open_flags)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+  als300_devc *devc = audio_engines[dev]->devc;
+  oss_native_word flags;
+
+  MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
+  if (portc->open_mode)
+    {
+      MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
+      return OSS_EBUSY;
+    }
+
+  if (devc->open_mode & mode)
+    {
+      MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
+      return OSS_EBUSY;
+    }
+
+  devc->open_mode |= mode;
+
+  portc->open_mode = mode;
+  portc->audio_enabled &= ~mode;
+
+  if ((mode & OPEN_READ) && !(audio_engines[dev]->flags & ADEV_NOINPUT))
+    {
+      audio_engines[dev]->fixed_rate = 48000;
+      audio_engines[dev]->flags |=
+	ADEV_FIXEDRATE | ADEV_STEREOONLY | ADEV_16BITONLY;
+      audio_engines[dev]->min_rate = 48000;
+      audio_engines[dev]->max_rate = 48000;
+    }
+  else
+    {
+      audio_engines[dev]->min_rate = 5000;
+      audio_engines[dev]->max_rate = 48000;
+      audio_engines[dev]->fixed_rate = 0;
+      audio_engines[dev]->flags &=
+	~(ADEV_FIXEDRATE | ADEV_STEREOONLY | ADEV_16BITONLY);
+    }
+
+  MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
+
+  return 0;
+}
+
+static void
+als300_audio_close (int dev, int mode)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+  als300_devc *devc = audio_engines[dev]->devc;
+
+  als300_audio_reset (dev);
+  portc->open_mode = 0;
+  devc->open_mode &= ~mode;
+  portc->audio_enabled &= ~mode;
+}
+
+/*ARGSUSED*/
+static void
+als300_audio_output_block (int dev, oss_native_word buf, int count,
+			   int fragsize, int intrflag)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+
+  portc->audio_enabled |= PCM_ENABLE_OUTPUT;
+  portc->trigger_bits &= ~PCM_ENABLE_OUTPUT;
+}
+
+/*ARGSUSED*/
+static void
+als300_audio_start_input (int dev, oss_native_word buf, int count,
+			  int fragsize, int intrflag)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+
+  portc->audio_enabled |= PCM_ENABLE_INPUT;
+  portc->trigger_bits &= ~PCM_ENABLE_INPUT;
+}
+
+static void
+als300_audio_trigger (int dev, int state)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+  als300_devc *devc = audio_engines[dev]->devc;
+  oss_native_word old82 = 0, new82 = 0, old85 = 0, new85 = 0, mode = 0;
+  oss_native_word flags;
+  int i;
+
+  MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
+  if (portc->open_mode & OPEN_WRITE)
+    {
+      if (state & PCM_ENABLE_OUTPUT)
+	{
+	  if ((portc->audio_enabled & PCM_ENABLE_OUTPUT) &&
+	      !(portc->trigger_bits & PCM_ENABLE_OUTPUT))
+	    {
+	      if (portc->bits == 8)
+		mode = 0x00140000L;
+	      else if (portc->bits == 16)
+		mode = 0x00000000L;
+	      if (portc->channels == 2)
+		mode |= 0x00000000L;
+	      else if (portc->channels == 1)
+		mode |= 0x00080000L;
+
+	      old82 = gcr_readl (devc, 0x82);
+	      new82 = (old82 & 0x0000ffff) | 0x00010000;
+	      new82 = new82 | mode | devc->srcode << 22;
+#if 1
+	      for (i = 0; i < 5000; i++)
+		{
+		  if ((INB (devc->osdev, devc->base + 6) & 0x08) == 0x00)
+		    goto PlayStart;
+		  oss_udelay (10);
+		}
+	    PlayStart:
+#endif
+	      gcr_writel (devc, 0x82, new82);
+	      portc->trigger_bits |= PCM_ENABLE_OUTPUT;
+	    }
+	}
+      else
+	{
+	  if ((portc->audio_enabled & PCM_ENABLE_OUTPUT) &&
+	      (portc->trigger_bits & PCM_ENABLE_OUTPUT))
+	    {
+	      portc->trigger_bits &= ~PCM_ENABLE_OUTPUT;
+	      portc->audio_enabled &= ~PCM_ENABLE_OUTPUT;
+	      gcr_writel (devc, 0x82, 0x00);
+	      OUTB (devc->osdev, 0x8, devc->base + 7);	/* acknowledge interrupt */
+	    }
+	}
+    }
+
+  if (portc->open_mode & OPEN_READ)
+    {
+      if (state & PCM_ENABLE_INPUT)
+	{
+	  if ((portc->audio_enabled & PCM_ENABLE_INPUT) &&
+	      !(portc->trigger_bits & PCM_ENABLE_INPUT))
+	    {
+	      old85 = gcr_readl (devc, 0x85);
+	      new85 = (old85 & 0x0000ffff) | 0x00010000;
+#if 1
+	      for (i = 0; i < 5000; i++)
+		{
+		  if ((INB (devc->osdev, devc->base + 6) & 0x08) == 0x00)
+		    goto RecStart;
+		  oss_udelay (10);
+		}
+	    RecStart:
+#endif
+	      gcr_writel (devc, 0x85, new85);
+	      portc->trigger_bits |= PCM_ENABLE_INPUT;
+	    }
+	}
+      else
+	{
+	  if ((portc->audio_enabled & PCM_ENABLE_INPUT) &&
+	      (portc->trigger_bits & PCM_ENABLE_INPUT))
+	    {
+	      portc->trigger_bits &= ~PCM_ENABLE_INPUT;
+	      portc->audio_enabled &= ~PCM_ENABLE_INPUT;
+	      gcr_writel (devc, 0x85, 0x00);
+	      OUTB (devc->osdev, 0x04, devc->base + 7);	/* acknowledge interrupt */
+	    }
+	}
+    }
+  MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
+}
+
+/*ARGSUSED*/
+unsigned int
+FindClosestFreq (als300_devc * devc, unsigned int sr)
+{
+  unsigned int i, error = 50000, dif, code = 0;
+
+  for (i = 0; i < FNO1; i += 2)
+    {
+      if (sr < FreqTable1[i])
+	dif = FreqTable1[i] - sr;
+      else
+	dif = sr - FreqTable1[i];
+      if (dif < error)
+	{
+	  error = dif;
+	  code = FreqTable1[i + 1];
+	}
+    }
+  return code;
+}
+
+/*ARGSUSED*/
+static int
+als300_audio_prepare_for_input (int dev, int bsize, int bcount)
+{
+  als300_devc *devc = audio_engines[dev]->devc;
+  als300_portc *portc = audio_engines[dev]->portc;
+  dmap_t *dmap = audio_engines[dev]->dmap_in;
+  oss_native_word flags;
+
+  MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
+  gcr_writel (devc, 0x85, dmap->fragment_size - 1);
+  gcr_writel (devc, 0x83, dmap->dmabuf_phys);
+  gcr_writel (devc, 0x84, dmap->dmabuf_phys + dmap->bytes_in_use - 1);
+  portc->audio_enabled &= ~PCM_ENABLE_INPUT;
+  portc->trigger_bits &= ~PCM_ENABLE_INPUT;
+  MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
+  return 0;
+}
+
+/*ARGSUSED*/
+static int
+als300_audio_prepare_for_output (int dev, int bsize, int bcount)
+{
+  als300_devc *devc = audio_engines[dev]->devc;
+  als300_portc *portc = audio_engines[dev]->portc;
+  dmap_t *dmap = audio_engines[dev]->dmap_out;
+  oss_native_word flags;
+
+  MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
+  devc->srcode = FindClosestFreq (devc, portc->speed);
+  gcr_writel (devc, 0x82, (dmap->fragment_size - 1));
+  gcr_writel (devc, 0x80, dmap->dmabuf_phys);
+  gcr_writel (devc, 0x81, dmap->dmabuf_phys + dmap->bytes_in_use - 1);
+  portc->audio_enabled &= ~PCM_ENABLE_OUTPUT;
+  portc->trigger_bits &= ~PCM_ENABLE_OUTPUT;
+  MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
+  return 0;
+}
+
+#if 0
+static int
+als300_get_buffer_pointer (int dev, dmap_t * dmap, int direction)
+{
+  als300_portc *portc = audio_engines[dev]->portc;
+  als300_devc *devc = audio_engines[dev]->devc;
+
+  unsigned int ptr = 0;
+
+  if (direction == DMODE_OUTPUT)
+    ptr = gcr_readl (devc, 0x9A);
+  if (direction == DMODE_INPUT)
+    ptr = gcr_readl (devc, 0x9B);
+  return ptr;
+}
+#endif
+
+static audiodrv_t als300_audio_driver = {
+  als300_audio_open,
+  als300_audio_close,
+  als300_audio_output_block,
+  als300_audio_start_input,
+  als300_audio_ioctl,
+  als300_audio_prepare_for_input,
+  als300_audio_prepare_for_output,
+  als300_audio_reset,
+  NULL,
+  NULL,
+  als300_audio_reset_input,
+  als300_audio_reset_output,
+  als300_audio_trigger,
+  als300_audio_set_rate,
+  als300_audio_set_format,
+  als300_audio_set_channels,
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  NULL,				/* als300_alloc_buffer */
+  NULL,				/* als300_free_buffer */
+  NULL,
+  NULL,
+  NULL				/* als300_get_buffer_pointer */
+};
+
+#ifdef OBSOLETED_STUFF
+/*
+ * This device has "ISA style" MIDI and FM subsystems. Such devices don't
+ * use PCI config space for the I/O ports and interrupts. Instead the driver
+ * needs to allocate proper resources itself. This functionality is no longer
+ * possible. For this reason the MIDI and FM parts are not accessible.
+ */
+static void
+attach_fm (als300_devc * devc)
+{
+  if (!opl3_detect (0x388, devc->osdev))
+    return;
+  opl3_init (0x388, devc->osdev);
+  devc->fm_attached = 1;
+}
+
+static void
+attach_mpu (als300_devc * devc)
+{
+  struct address_info hw_config;
+
+  hw_config.io_base = devc->mpu_base;
+  hw_config.irq = -devc->irq;
+  hw_config.dma = -1;
+  hw_config.dma2 = -1;
+  hw_config.always_detect = 0;
+  hw_config.name = "ALS300 MPU";
+  hw_config.driver_use_1 = 0;
+  hw_config.driver_use_2 = 0;
+  hw_config.osdev = devc->osdev;
+#ifdef CREATE_OSP
+  CREATE_OSP (hw_config.osdev);
+#endif
+  hw_config.card_subtype = 0;
+
+  if (!probe_uart401 (&hw_config))
+    {
+      cmn_err (CE_WARN, "MPU-401 was not detected\n");
+      return;
+    }
+  devc->mpu_attached = 1;
+  attach_uart401 (&hw_config);
+}
+
+static void
+unload_mpu (als300_devc * devc)
+{
+  struct address_info hw_config;
+
+  hw_config.io_base = devc->mpu_base;
+  hw_config.irq = -devc->irq;
+  hw_config.dma = -1;
+  hw_config.dma2 = -1;
+  hw_config.always_detect = 0;
+  hw_config.name = "ALS300 MPU";
+  hw_config.driver_use_1 = 0;
+  hw_config.driver_use_2 = 0;
+  hw_config.osdev = devc->osdev;
+#ifdef CREATE_OSP
+  CREATE_OSP (hw_config.osdev);
+#endif
+  hw_config.card_subtype = 0;
+
+  devc->mpu_attached = 0;
+  unload_uart401 (&hw_config);
+}
+#endif
+
+static int
+init_als300 (als300_devc * devc)
+{
+  int my_mixer;
+  int i;
+  int adev;
+  oss_native_word dwTemp;
+  int first_dev = 0;
+
+  devc->mpu_attached = devc->fm_attached = 0;
+
+/*
+ * Enable BusMasterMode and IOSpace Access 
+ */
+  switch (devc->model)
+    {
+    case MDL_ALS300:
+      dwTemp = gcr_readl (devc, 0x98);
+      dwTemp |= devc->mpu_base >> 4;
+      dwTemp = gcr_readl (devc, 0x98);
+      dwTemp |= (1 << 19 | 1 << 18 | 1 << 17 | 1 << 16);
+      gcr_writel (devc, 0x98, dwTemp);
+      gcr_writel (devc, 0x99, 0);
+      dwTemp = gcr_readl (devc, 0x8c);
+      dwTemp |= 0x50;
+      if (devc->chip_rev < 4)
+	dwTemp &= ~0x8000;
+      else
+	dwTemp |= 0x8000;
+      gcr_writel (devc, 0x8c, (dwTemp | 0x50));	/*enable INTA */
+      break;
+
+    case MDL_ALS300PLUS:
+      dwTemp = ((oss_native_word) 0x200 << 16) | (0x388);
+      dwTemp |= 0x00010000;	/* enable Game */
+      dwTemp |= 0x00000001;	/* enable FM */
+      gcr_writel (devc, 0xa8, dwTemp);
+      dwTemp = (oss_native_word) (devc->mpu_base << 16);
+      dwTemp |= 0x00010000;	/* enable MPU */
+      gcr_writel (devc, 0xa9, dwTemp);
+
+      dwTemp = gcr_readl (devc, 0x8c);
+
+      gcr_writel (devc, 0x8c, dwTemp | 0x308050);	/*enable INTA */
+      gcr_writel (devc, 0x99, 0);	/* no DDMA */
+      break;
+    }
+
+#ifdef OBSOLETED_STUFF
+  attach_fm (devc);
+
+  if (devc->mpu_base > 0)
+    attach_mpu (devc);
+#endif
+
+  if ((my_mixer =
+       ac97_install (&devc->ac97devc, "ALS300 AC97 Mixer", ac97_read,
+		     ac97_write, devc, devc->osdev)) >= 0)
+    {
+      devc->mixer_dev = my_mixer;
+    }
+  else
+    return 0;
+
+  for (i = 0; i < MAX_PORTC; i++)
+    {
+      char tmp_name[100];
+      als300_portc *portc = &devc->portc[i];
+      int caps = ADEV_AUTOMODE;
+
+      if (i == 0)
+	{
+	  sprintf (tmp_name, "%s (Rev %c)", devc->chip_name,
+		   'A' + devc->chip_rev);
+	  caps |= ADEV_DUPLEX;
+	}
+      else
+	{
+	  sprintf (tmp_name, "%s (shadow)", devc->chip_name);
+	  caps |= ADEV_DUPLEX | ADEV_SHADOW;
+	}
+
+      if ((adev = oss_install_audiodev (OSS_AUDIO_DRIVER_VERSION,
+					devc->osdev,
+					devc->osdev,
+					tmp_name,
+					&als300_audio_driver,
+					sizeof (audiodrv_t),
+					caps,
+					AFMT_U8 | AFMT_S16_LE, devc, -1)) < 0)
+	{
+	  adev = -1;
+	  return 0;
+	}
+      else
+	{
+	  if (i == 0)
+	    first_dev = adev;
+	  audio_engines[adev]->portc = portc;
+	  audio_engines[adev]->mixer_dev = my_mixer;
+	  audio_engines[adev]->rate_source = first_dev;
+	  audio_engines[adev]->mixer_dev = my_mixer;
+	  audio_engines[adev]->min_block = 4096;
+	  audio_engines[adev]->max_block = 4096;
+	  audio_engines[adev]->min_rate = 5000;
+	  audio_engines[adev]->max_rate = 48000;
+	  audio_engines[adev]->caps |= PCM_CAP_FREERATE;
+
+	  portc->open_mode = 0;
+	  portc->audiodev = adev;
+	  portc->audio_enabled = 0;
+#ifdef CONFIG_OSS_VMIX
+	  if (i == 0)
+	     vmix_attach_audiodev(devc->osdev, adev, -1, 0);
+#endif
+	}
+
+    }
+
+  return 1;
+}
+
+int
+oss_als3xx_attach (oss_device_t * osdev)
+{
+  unsigned char pci_irq_line, pci_revision;
+  unsigned short pci_command, vendor, device;
+  unsigned int pci_ioaddr;
+  int err;
+  als300_devc *devc;
+
+  DDB (cmn_err (CE_WARN, "Entered ALS ALS300 probe routine\n"));
+
+
+  pci_read_config_word (osdev, PCI_VENDOR_ID, &vendor);
+  pci_read_config_byte (osdev, PCI_REVISION_ID, &pci_revision);
+  pci_read_config_word (osdev, PCI_COMMAND, &pci_command);
+  pci_read_config_word (osdev, PCI_DEVICE_ID, &device);
+  pci_read_config_irq (osdev, PCI_INTERRUPT_LINE, &pci_irq_line);
+  pci_read_config_dword (osdev, PCI_BASE_ADDRESS_0, &pci_ioaddr);
+
+  if (vendor != ALS_VENDOR_ID || (device != ALS_300 && device != ALS_300P))
+    return 0;
+
+  DDB (cmn_err (CE_WARN, "rev %x I/O base %04x\n", pci_revision, pci_ioaddr));
+
+  if (pci_ioaddr == 0)
+    {
+      cmn_err (CE_WARN, "I/O address not assigned by BIOS.\n");
+      return 0;
+    }
+
+  if (pci_irq_line == 0)
+    {
+      cmn_err (CE_WARN, "IRQ not assigned by BIOS (%d).\n", pci_irq_line);
+      return 0;
+    }
+
+  if ((devc = PMALLOC (osdev, sizeof (*devc))) == NULL)
+    {
+      cmn_err (CE_WARN, "Out of memory\n");
+      return 0;
+    }
+
+  devc->osdev = osdev;
+  osdev->devc = devc;
+  devc->open_mode = 0;
+
+  devc->base = MAP_PCI_IOADDR (devc->osdev, 0, pci_ioaddr);
+  /* Remove I/O space marker in bit 0. */
+  devc->base &= ~3;
+
+  devc->irq = pci_irq_line;
+  devc->mpu_base = als300_mpu_base;
+
+  pci_command |= PCI_COMMAND_MASTER | PCI_COMMAND_IO;
+  pci_write_config_word (osdev, PCI_COMMAND, pci_command);
+
+
+  switch (device)
+    {
+    case ALS_300:
+      devc->model = MDL_ALS300;
+      devc->chip_name = "Avance Logic ALS300";
+      devc->chip_rev = pci_revision;
+      break;
+
+    case ALS_300P:
+      devc->model = MDL_ALS300PLUS;
+      devc->chip_name = "Avance Logic ALS300+";
+      devc->chip_rev = pci_revision;
+      break;
+    }
+
+  MUTEX_INIT (devc->osdev, devc->mutex, MH_DRV);
+  MUTEX_INIT (devc->osdev, devc->low_mutex, MH_DRV + 1);
+
+  oss_register_device (osdev, devc->chip_name);
+
+  if ((err = oss_register_interrupts (devc->osdev, 0, als300intr, NULL)) < 0)
+    {
+      cmn_err (CE_WARN, "Can't allocate IRQ%d, err=%d\n", pci_irq_line, err);
+      return 0;
+    }
+
+  return init_als300 (devc);	/* Detected */
+}
+
+int
+oss_als3xx_detach (oss_device_t * osdev)
+{
+  als300_devc *devc = (als300_devc *) osdev->devc;
+  unsigned int dwTemp;
+
+  if (oss_disable_device (osdev) < 0)
+    return 0;
+
+  if (devc->model == MDL_ALS300PLUS)
+    {
+      dwTemp = gcr_readl (devc, 0x8c);
+      gcr_writel (devc, 0x8c, dwTemp &= ~0x8000);
+    }
+#ifdef OBSOLETED_STUFF
+  if (devc->mpu_attached)
+    unload_mpu (devc);
+#endif
+  oss_unregister_interrupts (devc->osdev);
+
+  MUTEX_CLEANUP (devc->mutex);
+  MUTEX_CLEANUP (devc->low_mutex);
+  UNMAP_PCI_IOADDR (devc->osdev, 0);
+
+  oss_unregister_device (devc->osdev);
+  return 1;
+}