Changeset 147 for sbliveos2/trunk/drv16/mpu401.cpp

Timestamp:

Apr 24, 2000, 9:45:21 PM (25 years ago)

Author:

sandervl

Message:

Fixed wave volume, recording gain + wave recording

File:

• sbliveos2/trunk/drv16/mpu401.cpp (modified) (8 diffs)

sbliveos2/trunk/drv16/mpu401.cpp

@@ -39 +39 @@
 
 #include "parse.h"
+#include "ossidc.h"
 
 
@@ -48 +49 @@
    static char szName[] = "SBLive #";  // Instance name for RTMIDI.  A number will be appended.
    static char szSuffix[] = "0";       // Printable char that is appended to szName.
-
-   usDataPort = 0x300;
-   usStatPort = 0x300 + 1;
 
    // RTMIDI (MIDI.SYS) related stuff
@@ -59 +57 @@
    // When we have an IRQ and a send capability, add next line.
    // ulCapabilities |= MIDICAPSA_OUTPUT;
-}
-
-
-#define TIMEOUT   60000
-
-unsigned MPUcommand(USHORT usDataPort, BYTE b)
-/* Returns 0 when command is properly accepted by the specified port;
- * Returns 1 - 4 to indicate various timeout conditions.
- */
-{
-   unsigned i;
-   const usStatPort = usDataPort + 1;
-
-   i=1000;
-   while (--i) {
-      if (inp(usStatPort) & DSR) break;
-      inp(usDataPort);
-      iodelay(1);                      // Delay >= 0.5 uSec
-   }
-   if ( !i ) {                         // >500 millisecond wait?
-      return 4;
-   }
-
-   for (i=0; i<TIMEOUT; i++) {
-      if (!(inp(usStatPort) & DRR)) {  // wait until it's ready
-         iodelay(1);                   // just to be safe
-         outp(usStatPort,b);
-         iodelay(1);                   // just to be safe
-         for (i=0; i<TIMEOUT; i++) {
-            if (!(inp(usStatPort) & DSR)) {
-               iodelay(1);             // just to be safe
-               i=inp(usDataPort);
-               if (i == 0xFE)
-                  return 0;
-               else {
-                  return 3;
-               }
-            }
-            iodelay(1);
-         }
-         if (b == 0xFF) {
-            return 0;
-         }
-         else {
-            return 1;
-         }
-      }
-      iodelay(1);
-   }
-
-   return 2;
+
+   midiOutStreamId = 0;
+   midiInStreamId  = 0;
 }
 
@@ -174 +124 @@
 int MPU_401::writeByte(BYTE b)
 {
-   unsigned i;
-
-   for (i=0; i<TIMEOUT; i++) {
-      cli();
-      if (!(inp(usStatPort) & DRR)) {
-         outp(usDataPort, b);
-         sti();
-         return 1;
-      }
-      sti();
-      iodelay(1);
-   }
+   //TODO:
    return 0;
 }
@@ -191 +130 @@
 int MPU_401::readByte(void)
 {
-   unsigned i;
-
-   for (i=0; i<TIMEOUT; i++) {
-      cli();
-      if (!(inp(usStatPort) & DSR)) {
-         i=inp(usDataPort);
-         sti();
-         return i;
-      }
-      sti();
-      iodelay(1);
-   }
+   //TODO:
    return -1;
 }
 
-/* MPU_401::_iInitialize
- * ### Need cleanup return codes - currently they are not consistent
- * ### or documented.  Currently, returns 0 on SUCCESS.
- */
-int MPU_401::_iInitialize(void)
-{
-   int rc;              // Return code from MPUcommand().
-
-   rc = MPUcommand(usDataPort, 0xFF);
-   if (rc == 0)
-      rc = MPUcommand(usDataPort, 0x3F);
-
-   return rc;
-}
-
 #pragma off (unreferenced)
 
@@ -231 +144 @@
 {
    BOOL rc;
-   _iInitialize();
 
    // Start timer on 4 mSec interval.
@@ -263 +175 @@
 USHORT MPU_401::RTMIDI_OpenReceive(void)
 {
-   //### Need to add serialization b/t MMPM/2 + RTMIDI, plus mult RTMIDI opens.
-
-   USHORT us = _iInitialize();
-   if (us)
-      return MIDIERRA_HW_FAILED;
-   else
-      return 0;
+   if(midiInStreamId == 0) {
+          midiInStreamId = OSS16_OpenMidiStream(MIDI_RECEIVE);
+   }
+   return (midiInStreamId) ? 0 : MIDIERRA_HW_FAILED;
 }
 
 USHORT MPU_401::RTMIDI_OpenSend(void)
 {
-   //### Need to add serialization b/t MMPM/2 + RTMIDI, plus mult RTMIDI opens.
-   //### Send capability pending but not currently implemented.
-
-   return MIDIERRA_HW_FAILED;
+   if(midiOutStreamId == 0) {
+          midiOutStreamId = OSS16_OpenMidiStream(MIDI_SEND);
+   }
+   return (midiOutStreamId) ? 0 : MIDIERRA_HW_FAILED;
 }
 
 USHORT MPU_401::RTMIDI_CloseReceive(void)
 {
-   MPUcommand(usDataPort, 0xFF);
+   OSS16_CloseMidiStream(MIDI_RECEIVE, midiInStreamId);
    return 0;
 }
@@ -288 +197 @@
 USHORT MPU_401::RTMIDI_CloseSend(void)
 {
-   MPUcommand(usDataPort, 0xFF);
-   return 0;
-}
-
+   OSS16_CloseMidiStream(MIDI_SEND, midiOutStreamId);
+   return 0;
+}
+