patch-1.3.34 linux/drivers/sound/sound_pnp.c

• Lines: 202
• Date: Wed Oct 11 07:55:42 1995
• Orig file: v1.3.33/linux/drivers/sound/sound_pnp.c
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.33/linux/drivers/sound/sound_pnp.c linux/drivers/sound/sound_pnp.c
@@ -0,0 +1,201 @@
+/*
+ * sound/sound_pnp.c
+ *
+ * PnP soundcard support (Linux spesific)
+ *
+ * Copyright by Hannu Savolainen 1995
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer. 2.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#include "sound_config.h"
+
+#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_PNP)
+
+#include <linux/pnp.h>
+
+static struct pnp_sounddev *pnp_devs[20] =
+{
+  NULL
+};
+
+static int      max_pnpdevs = 20;
+static int      nr_pnpdevs = 0;
+static int      pnp_sig = 0;
+
+void
+install_pnp_sounddrv (struct pnp_sounddev *drv)
+{
+  if (nr_pnpdevs < max_pnpdevs)
+    {
+      pnp_devs[nr_pnpdevs++] = drv;
+    }
+  else
+    printk ("Sound: More than 20 PnP drivers defined\n");
+}
+
+void
+cs4232_pnp (void *parm)
+{
+  struct pnp_dev *dev = (struct pnp_dev *) parm;
+  char           *name;
+
+  int             portmask = 0x00, irqmask = 0x01, dmamask = 0x03;
+  int             opl3_driver, wss_driver;
+
+  printk ("CS4232 driver waking up\n");
+
+  if (dev->card && dev->card->name)
+    name = dev->card->name;
+  else
+    name = "PnP WSS";
+
+  if ((wss_driver = sndtable_identify_card ("AD1848")))
+    portmask |= 0x01;		/* MSS */
+  else
+    printk ("Sound: MSS/WSS device detected but no driver enabled\n");
+
+  if ((opl3_driver = sndtable_identify_card ("OPL3")))
+    portmask |= 0x02;		/* OPL3 */
+  else
+    printk ("Sound: OPL3/4 device detected but no driver enabled\n");
+
+  printk ("WSS driver %d, OPL3 driver %d\n", wss_driver, opl3_driver);
+
+  if (!portmask)		/* No drivers available */
+    return;
+
+  if (!pnp_allocate_device (pnp_sig, dev, portmask, irqmask, dmamask, 0x00))
+    printk ("Device activation failed\n");
+  else
+    {
+      struct address_info hw_config;
+      int             wss_base, opl3_base;
+      int             irq;
+      int             dma1, dma2;
+
+      printk ("Device activation OK\n");
+      wss_base = pnp_get_port (dev, 0);
+      opl3_base = pnp_get_port (dev, 1);
+      irq = pnp_get_irq (dev, 0);
+      dma1 = pnp_get_dma (dev, 0);
+      dma2 = pnp_get_dma (dev, 1);
+
+      printk ("I/O0 %03x\n", wss_base);
+      printk ("I/O1 %03x\n", opl3_base);
+      printk ("IRQ %d\n", irq);
+      printk ("DMA0 %d\n", dma1);
+      printk ("DMA1 %d\n", dma2);
+
+      if (opl3_base && opl3_driver)
+	{
+	  hw_config.io_base = opl3_base;
+	  hw_config.irq = 0;
+	  hw_config.dma = -1;
+	  hw_config.dma2 = -1;
+	  hw_config.always_detect = 0;
+	  hw_config.name = "";
+	  hw_config.driver_use_1 = 0;
+	  hw_config.driver_use_2 = 0;
+	  hw_config.osp = NULL;
+
+	  if (sndtable_probe (opl3_driver, &hw_config))
+	    sndtable_init_card (opl3_driver, &hw_config);
+
+	}
+
+      if (wss_base && wss_driver)
+	{
+	  hw_config.io_base = wss_base;
+	  hw_config.irq = irq;
+	  hw_config.dma = dma1;
+	  hw_config.dma2 = (dma2 == NO_DMA) ? dma1 : dma2;
+	  hw_config.always_detect = 0;
+	  hw_config.name = name;
+	  hw_config.driver_use_1 = 0;
+	  hw_config.driver_use_2 = 0;
+	  hw_config.osp = NULL;
+
+	  if (sndtable_probe (wss_driver, &hw_config))
+	    sndtable_init_card (wss_driver, &hw_config);
+
+	}
+    }
+}
+
+static int
+pnp_activate (int id, struct pnp_dev *dev)
+{
+  int             i;
+
+  for (i = 0; i < nr_pnpdevs; i++)
+    if (pnp_devs[i]->id == id)
+      {
+
+	printk ("PnP dev: %08x, %s\n", id,
+		pnp_devid2asc (id));
+
+	pnp_devs[i]->setup ((void *) dev);
+	return 1;
+      }
+
+  return 0;
+}
+
+void
+sound_pnp_init (void)
+{
+  static struct pnp_sounddev cs4232_dev =
+  {PNP_DEVID ('C', 'S', 'C', 0x0000), cs4232_pnp, "CS4232"};
+
+  struct pnp_dev *dev;
+
+  install_pnp_sounddrv (&cs4232_dev);
+
+  dev = NULL;
+
+  if ((pnp_sig = pnp_connect ("sound")) == -1)
+    {
+      printk ("Sound: Can't connect to kernel PnP services.\n");
+      return;
+    }
+
+  while ((dev = pnp_get_next_device (pnp_sig, dev)) != NULL)
+    {
+      if (!pnp_activate (dev->key, dev))
+	{
+	  /* Scan all compatible devices */
+
+	  int             i;
+
+	  for (i = 0; i < dev->ncompat; i++)
+	    if (pnp_activate (dev->compat_keys[i], dev))
+	      break;
+	}
+    }
+}
+
+void
+sound_pnp_disconnect (void)
+{
+  pnp_disconnect (pnp_sig);
+}
+#endif