patch-1.3.9 linux/drivers/sound/trix.c

• Lines: 332
• Date: Mon Jul 10 01:45:23 1995
• Orig file: v1.3.8/linux/drivers/sound/trix.c
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.8/linux/drivers/sound/trix.c linux/drivers/sound/trix.c
@@ -0,0 +1,331 @@
+/*
+ * sound/trix.c
+ *
+ * Low level driver for the MediaTriX AudioTriX Pro
+ * (MT-0002-PC Control Chip)
+ *
+ * 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_TRIX)
+
+#ifdef INCLUDE_TRIX_BOOT
+#include "trix_boot.h"
+#endif
+
+static int      kilroy_was_here = 0;	/* Don't detect twice */
+static int      sb_initialized = 0;
+static int      mpu_initialized = 0;
+
+static unsigned char
+trix_read (int addr)
+{
+  OUTB ((unsigned char) addr, 0x390);	/* MT-0002-PC ASIC address */
+  return INB (0x391);		/* MT-0002-PC ASIC data */
+}
+
+static void
+trix_write (int addr, int data)
+{
+  OUTB ((unsigned char) addr, 0x390);	/* MT-0002-PC ASIC address */
+  OUTB ((unsigned char) data, 0x391);	/* MT-0002-PC ASIC data */
+}
+
+static void
+download_boot (int base)
+{
+#ifdef INCLUDE_TRIX_BOOT
+  int             i = 0, n = sizeof (trix_boot);
+
+  trix_write (0xf8, 0x00);	/* ??????? */
+  OUTB (0x01, base + 6);	/* Clear the internal data pointer */
+  OUTB (0x00, base + 6);	/* Restart */
+
+  /*
+     *  Write the boot code to the RAM upload/download register.
+     *  Each write increments the internal data pointer.
+   */
+  OUTB (0x01, base + 6);	/* Clear the internal data pointer */
+  OUTB (0x1A, 0x390);		/* Select RAM download/upload port */
+
+  for (i = 0; i < n; i++)
+    OUTB (trix_boot[i], 0x391);
+  for (i = n; i < 10016; i++)	/* Clear up to first 16 bytes of data RAM */
+    OUTB (0x00, 0x391);
+  OUTB (0x00, base + 6);	/* Reset */
+  OUTB (0x50, 0x390);		/* ?????? */
+#endif
+}
+
+static int
+trix_set_wss_port (struct address_info *hw_config)
+{
+  unsigned char   addr_bits;
+
+  if (kilroy_was_here)		/* Already initialized */
+    return 0;
+
+  kilroy_was_here = 1;
+
+  if (trix_read (0x15) != 0x71)	/* No asic signature */
+    return 0;
+
+  /*
+     * Disable separate wave playback and recording DMA channels since
+     * the driver doesn't support duplex mode yet.
+   */
+
+  trix_write (0x13, trix_read (0x13) & ~0x80);
+  trix_write (0x14, trix_read (0x14) & ~0x80);
+
+  /*
+     * Configure the ASIC to place the codec to the proper I/O location
+   */
+
+  switch (hw_config->io_base)
+    {
+    case 0x530:
+      addr_bits = 0;
+      break;
+    case 0x604:
+      addr_bits = 1;
+      break;
+    case 0xE80:
+      addr_bits = 2;
+      break;
+    case 0xF40:
+      addr_bits = 3;
+      break;
+    default:
+      return 0;
+    }
+
+  trix_write (0x19, (trix_read (0x19) & 0x03) | addr_bits);
+  return 1;
+}
+
+/*
+ *    Probe and attach routines for the Windows Sound System mode of
+ *      AudioTriX Pro
+ */
+
+int
+probe_trix_wss (struct address_info *hw_config)
+{
+  /*
+     * Check if the IO port returns valid signature. The original MS Sound
+     * system returns 0x04 while some cards (AudioTriX Pro for example)
+     * return 0x00.
+   */
+  if (!trix_set_wss_port (hw_config))
+    return 0;
+
+  if ((INB (hw_config->io_base + 3) & 0x3f) != 0x00)
+    {
+      DDB (printk ("No MSS signature detected on port 0x%x\n", hw_config->io_base));
+      return 0;
+    }
+
+  if (hw_config->irq > 11)
+    {
+      printk ("AudioTriX: Bad WSS IRQ %d\n", hw_config->irq);
+      return 0;
+    }
+
+  if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3)
+    {
+      printk ("AudioTriX: Bad WSS DMA %d\n", hw_config->dma);
+      return 0;
+    }
+
+  /*
+     * Check that DMA0 is not in use with a 8 bit board.
+   */
+
+  if (hw_config->dma == 0 && INB (hw_config->io_base + 3) & 0x80)
+    {
+      printk ("AudioTriX: Can't use DMA0 with a 8 bit card\n");
+      return 0;
+    }
+
+  if (hw_config->irq > 7 && hw_config->irq != 9 && INB (hw_config->io_base + 3) & 0x80)
+    {
+      printk ("AudioTriX: Can't use IRQ%d with a 8 bit card\n", hw_config->irq);
+      return 0;
+    }
+
+  return ad1848_detect (hw_config->io_base + 4);
+}
+
+long
+attach_trix_wss (long mem_start, struct address_info *hw_config)
+{
+  static unsigned char interrupt_bits[12] =
+  {-1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20};
+  char            bits;
+
+  static unsigned char dma_bits[4] =
+  {1, 2, 0, 3};
+
+  int             config_port = hw_config->io_base + 0, version_port = hw_config->io_base + 3;
+
+  if (!kilroy_was_here)
+    return mem_start;
+
+  /*
+     * Set the IRQ and DMA addresses.
+   */
+
+  bits = interrupt_bits[hw_config->irq];
+  if (bits == -1)
+    return mem_start;
+
+  OUTB (bits | 0x40, config_port);
+  if ((INB (version_port) & 0x40) == 0)
+    printk ("[IRQ Conflict?]");
+
+  OUTB (bits | dma_bits[hw_config->dma], config_port);	/* Write IRQ+DMA setup */
+
+  ad1848_init ("AudioTriX Pro", hw_config->io_base + 4,
+	       hw_config->irq,
+	       hw_config->dma,
+	       hw_config->dma);
+  return mem_start;
+}
+
+int
+probe_trix_sb (struct address_info *hw_config)
+{
+
+  int             tmp;
+  unsigned char   conf;
+  static char     irq_translate[] =
+  {-1, -1, -1, 0, 1, 2, -1, 3};
+
+#ifndef INCLUDE_TRIX_BOOT
+  return 0;			/* No boot code -> no fun */
+#endif
+  if (!kilroy_was_here)
+    return 0;			/* AudioTriX Pro has not been detected earlier */
+
+  if (sb_initialized)
+    return 0;
+
+  if (hw_config->io_base & 0xffffff8f != 0x200)
+    return 0;
+
+  tmp = hw_config->irq;
+  if (tmp > 7)
+    return 0;
+  if (irq_translate[tmp] == -1)
+    return 0;
+
+  tmp = hw_config->dma;
+  if (tmp != 1 && tmp != 3)
+    return 0;
+
+  conf = 0x84;			/* DMA and IRQ enable */
+  conf |= hw_config->io_base & 0x70;	/* I/O address bits */
+  conf |= irq_translate[hw_config->irq];
+  if (hw_config->dma == 3)
+    conf |= 0x08;
+  trix_write (0x1b, conf);
+
+  download_boot (hw_config->io_base);
+  sb_initialized = 1;
+
+  return 1;
+}
+
+long
+attach_trix_sb (long mem_start, struct address_info *hw_config)
+{
+#ifndef EXCLUDE_SB
+  extern int      sb_no_recording;
+
+  sb_dsp_disable_midi ();
+  sb_no_recording = 1;
+#endif
+  printk (" <AudioTriX (SB)>");
+  return mem_start;
+}
+
+long
+attach_trix_mpu (long mem_start, struct address_info *hw_config)
+{
+  return attach_mpu401 (mem_start, hw_config);
+}
+
+int
+probe_trix_mpu (struct address_info *hw_config)
+{
+  unsigned char   conf;
+  static char     irq_bits[] =
+  {-1, -1, -1, 1, 2, 3, -1, 4, -1, 5};
+
+  if (!kilroy_was_here)
+    return 0;			/* AudioTriX Pro has not been detected earlier */
+
+  if (!sb_initialized)
+    return 0;
+
+  if (mpu_initialized)
+    return 0;
+
+  if (hw_config->irq > 9)
+    return 0;
+
+  if (irq_bits[hw_config->irq] == -1)
+    return 0;
+
+  switch (hw_config->io_base)
+    {
+    case 0x330:
+      conf = 0x00;
+      break;
+    case 0x370:
+      conf = 0x04;
+      break;
+    case 0x3b0:
+      conf = 0x08;
+      break;
+    case 0x3f0:
+      conf = 0x0c;
+      break;
+    default:
+      return 0;			/* Invalid port */
+    }
+
+  conf |= irq_bits[hw_config->irq] << 4;
+
+  trix_write (0x19, (trix_read (0x19) & 0x83) | conf);
+
+  mpu_initialized = 1;
+
+  return probe_mpu401 (hw_config);
+}
+
+#endif