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

Timestamp:

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

Author:

sandervl

Message:

update

File:

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

sbliveos2/trunk/drv16/rm.cpp

@@ -40 +40 @@
 #include <string.h>                    // _fmemset()
 #include "malloc.h"                    // malloc()
-
+#include <dbgos2.h>
 
 char DeviceName[64] = "Creative Labs SoundBlaster Live";
@@ -96 +96 @@
  *  allocate resources.
  */
-ResourceManager::ResourceManager ( )
+ResourceManager::ResourceManager(ULONG pciId)
 {
    APIRET rc;
@@ -141 +141 @@
            ((pGIS->uchMajorVersion == 20) && (pGIS->uchMinorVersion > 30)) );
    }
-}
-
-bool ResourceManager::bIsDevDetected ( DEVID DevID , ULONG ulSearchFlags, bool fPciDevice)
+
+   if(getPCIConfiguration(pciId) == FALSE) {
+      _state = rmDriverFailed;
+   }
+
+}
+
+#pragma off (unreferenced)
+bool ResourceManager::bIsDevDetected( DEVID DevID , ULONG ulSearchFlags, bool fPciDevice)
+#pragma on (unreferenced)
 /*
 ;  PURPOSE: Search the Resource Manager's "current detected" tree for
@@ -158 +165 @@
 */
 {
+#if 1
+   //Manual detection in ResourceManager class constructor; 
+   return _state == rmDriverCreated;
+#else
    BOOL bReturn = FALSE;
    NPHANDLELIST pHandleList = 0;
@@ -173 +184 @@
 
    return bReturn ;
+#endif
 }
 
@@ -190 +202 @@
  * @return NULL on error situations.
  */
+#pragma off (unreferenced)
 LDev_Resources* ResourceManager::GetRMDetectedResources ( DEVID DevID , ULONG ulSearchFlags, bool fPciDevice)
-{
+#pragma on (unreferenced)
+{
+#if 1
+   LDev_Resources* pResources = 0;     // Used to return result.
+
+   pResources = new LDev_Resources();
+   if (!pResources) return NULL;
+
+   pResources->vClear();
+
+   //Fill in resources read from PCI Configuration space
+   pResources->uIRQLevel[0]  = pciConfigData->InterruptLine;
+   if(pResources->uIRQLevel[0] == 0 || pResources->uIRQLevel[0] > 15)  {
+        dprintf(("Invalid PCI irq %x", (int)pResources->uIRQLevel[0]));
+        DebugInt3();
+        return NULL;
+   }
+   pResources->uIOBase[0]   = (USHORT)(pciConfigData->Bar0 & 0xFFFFFF00);
+   pResources->uIOLength[0] = 0x20;
+
+   return pResources;
+#else
    LDev_Resources* pResources = 0;     // Used to return result.
    NPRM_GETNODE_DATA pNode = 0;        // Node resource data for spec'd DEVID's.
@@ -254 +288 @@
    delete pResources;
    return NULL;
+#endif
 }
 
@@ -723 +758 @@
 }
 
+
+#define PCI_CONFIG_ENABLE       0x80000000
+#define PCI_CONFIG_ADDRESS      0xCF8
+#define PCI_CONFIG_DATA         0xCFC
+
+unsigned long _inpd(unsigned short);
+#pragma aux _inpd "_inpd" \
+  parm   [dx] \
+  value  [dx ax];
+
+//COMPILER BUG: bx cx == cx bx
+void _outpd(unsigned short, unsigned long);
+#pragma aux _outpd "_outpd" \
+  parm   [dx] [cx bx] \
+  modify [ax dx];
+
+BOOL ResourceManager::getPCIConfiguration(ULONG pciId)
+{
+ ULONG devNr, busNr, funcNr, temp, cfgaddrreg, detectedId;
+ BOOL  found = FALSE;
+
+        cfgaddrreg = _inpd(PCI_CONFIG_ADDRESS);
+        for(busNr=0;busNr<255;busNr++)     //BusNumber<255
+        {
+                for(devNr=0;devNr<32;devNr++)
+                {
+                        for(funcNr=0;funcNr<8;funcNr++) 
+                        {
+                                temp = ((ULONG)((ULONG)devNr<<11UL) + ((ULONG)busNr<<16UL) + ((ULONG)funcNr << 8UL));
+
+                                _outpd(PCI_CONFIG_ADDRESS, PCI_CONFIG_ENABLE|temp);
+                                detectedId = _inpd(PCI_CONFIG_DATA);
+                                if(detectedId == pciId)
+                                {
+                                        found = TRUE;
+                                        break;
+                                }
+                        }
+                        if(found) break;
+                }
+                if(found) break;
+        }
+
+        if(!found) {
+                _outpd(PCI_CONFIG_ADDRESS, cfgaddrreg);
+                return FALSE;
+        }
+
+        for(int i=0;i<64;i++)
+        {
+                temp = ((ULONG)((ULONG)devNr<<11UL) + ((ULONG)busNr<<16UL) + ((ULONG)funcNr << 8UL) + (i << 2));
+                _outpd(PCI_CONFIG_ADDRESS, PCI_CONFIG_ENABLE|temp);
+
+                PCIConfig[i] = _inpd(PCI_CONFIG_DATA);
+        }
+        _outpd(PCI_CONFIG_ADDRESS, cfgaddrreg);
+
+        pciConfigData = (PCIConfigData *)&PCIConfig[0];
+
+        if(pciConfigData->Bar0 == 0 || pciConfigData->Bar0 == 0xFFFFFFFF)
+        {
+                DebugInt3();
+                return(FALSE);
+        }
+        return TRUE;
+}
+