Changeset 151 for sbliveos2/trunk/drv16/mpu401.cpp

Timestamp:

May 28, 2000, 6:50:46 PM (25 years ago)

Author:

sandervl

Message:

update

File:

• sbliveos2/trunk/drv16/mpu401.cpp (modified) (6 diffs)

sbliveos2/trunk/drv16/mpu401.cpp

@@ -40 +40 @@
 #include "parse.h"
 #include "ossidc.h"
+#include <dbgos2.h>
+
+#define TIMEOUT   60000
 
 
@@ -47 +50 @@
    MIDIAUDIO ( AUDIOHW_MPU401_PLAY, pTimer )
 {
-   static char szName[] = "SBLive #";  // Instance name for RTMIDI.  A number will be appended.
+   static char szName[] = "SBLive RTMIDI #";  // Instance name for RTMIDI.  A number will be appended.
    static char szSuffix[] = "0";       // Printable char that is appended to szName.
 
    // RTMIDI (MIDI.SYS) related stuff
-   ++szSuffix[0];                      // Bump number in instance name.
+////   ++szSuffix[0];                      // Bump number in instance name.
    strcpy( szRTMIDI_Name, szName );    // Setup instance name.
    strcat( szRTMIDI_Name, szSuffix );  // Append ASCII number to instance name.
-   ulRTMIDI_Caps = MIDICAPSA_INPUT;    // Set RTMIDI caps.
-   // When we have an IRQ and a send capability, add next line.
-   // ulCapabilities |= MIDICAPSA_OUTPUT;
+   ulRTMIDI_Caps = MIDICAPSA_INPUT | MIDICAPSA_OUTPUT;    // Set RTMIDI caps.
 
    midiOutStreamId = 0;
@@ -124 +125 @@
 int MPU_401::writeByte(BYTE b)
 {
-   //TODO:
+   if(!midiOutStreamId) {
+        DebugInt3();
+        return 0;
+   }
+   unsigned int i;
+
+   for (i=0; i<TIMEOUT; i++) {
+        if(OSS16_WriteMidiByte(midiOutStreamId, b)) {
+                return 1;
+        }
+        iodelay(1);
+   }
    return 0;
 }
@@ -132 +144 @@
    //TODO:
    return -1;
+}
+
+void MPU_401::processIrq(unsigned long streamid)
+{
+ char buffer[64];
+ int  bufsize;
+
+   MIDIAUDIO* pma = (MIDIAUDIO *) pAudioHWList->Head();
+   while (pma) {
+      if((pma->ulDeviceType == AUDIOHW_MPU401_CAPTURE) ||
+        (pma->ulDeviceType == AUDIOHW_MPU401_PLAY)) {
+                break;
+      }
+      pma = (MIDIAUDIO *) pma->pNext;
+   }
+   if(pma == NULL) {
+        dprintf(("MPU_401::processIrq: mpu device found!!"));
+        return;
+   }
+
+   while(TRUE) {
+        bufsize = OSS16_ReadMidiBytes(streamid, &buffer[0], sizeof(buffer));
+        for(int i=0;i<bufsize;i++) {
+                pma->pfnSendByte(pma->ulRTMIDI_Handle, buffer[i]);
+        }
+        if(bufsize != sizeof(buffer)) {
+                break;
+        }
+   }   
 }
 
@@ -175 +216 @@
 USHORT MPU_401::RTMIDI_OpenReceive(void)
 {
+   if(midiOutStreamId == 0) {
+          midiOutStreamId = OSS16_OpenMidiStream(MIDI_RECEIVE);
+   }
+   return (midiOutStreamId) ? 0 : MIDIERRA_HW_FAILED;
+}
+
+USHORT MPU_401::RTMIDI_OpenSend(void)
+{
    if(midiInStreamId == 0) {
-          midiInStreamId = OSS16_OpenMidiStream(MIDI_RECEIVE);
+          midiInStreamId = OSS16_OpenMidiStream(MIDI_SEND);
    }
    return (midiInStreamId) ? 0 : MIDIERRA_HW_FAILED;
 }
 
-USHORT MPU_401::RTMIDI_OpenSend(void)
-{
-   if(midiOutStreamId == 0) {
-          midiOutStreamId = OSS16_OpenMidiStream(MIDI_SEND);
-   }
-   return (midiOutStreamId) ? 0 : MIDIERRA_HW_FAILED;
-}
-
 USHORT MPU_401::RTMIDI_CloseReceive(void)
 {
-   OSS16_CloseMidiStream(MIDI_RECEIVE, midiInStreamId);
+   if(midiOutStreamId) {
+        OSS16_CloseMidiStream(MIDI_RECEIVE, midiOutStreamId);
+        midiOutStreamId = 0;
+   }
    return 0;
 }
@@ -197 +241 @@
 USHORT MPU_401::RTMIDI_CloseSend(void)
 {
-   OSS16_CloseMidiStream(MIDI_SEND, midiOutStreamId);
-   return 0;
-}
-
+   if(midiInStreamId) {
+        OSS16_CloseMidiStream(MIDI_SEND, midiInStreamId);
+        midiInStreamId = 0;
+   }
+   return 0;
+}
+