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+/****************************************************************************
+*
+* SciTech OS Portability Manager Library
+*
+* ========================================================================
+*
+* The contents of this file are subject to the SciTech MGL Public
+* License Version 1.0 (the "License"); you may not use this file
+* except in compliance with the License. You may obtain a copy of
+* the License at http://www.scitechsoft.com/mgl-license.txt
+*
+* Software distributed under the License is distributed on an
+* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+* implied. See the License for the specific language governing
+* rights and limitations under the License.
+*
+* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
+*
+* The Initial Developer of the Original Code is SciTech Software, Inc.
+* All Rights Reserved.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: any
+*
+* Description: Test program to test the PCI library functions.
+*
+****************************************************************************/
+
+#include "pmapi.h"
+#include "pcilib.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+/*------------------------- Global Variables ------------------------------*/
+
+static int NumPCI = -1;
+static PCIDeviceInfo *PCI;
+static int *BridgeIndex;
+static int *DeviceIndex;
+static int NumBridges;
+static PCIDeviceInfo *AGPBridge = NULL;
+static int NumDevices;
+
+/*-------------------------- Implementation -------------------------------*/
+
+/****************************************************************************
+REMARKS:
+Enumerates the PCI bus and dumps the PCI configuration information to the
+log file.
+****************************************************************************/
+static void EnumeratePCI(void)
+{
+ int i,index;
+ PCIDeviceInfo *info;
+
+ printf("Displaying enumeration of PCI bus (%d devices, %d display devices)\n",
+ NumPCI, NumDevices);
+ for (index = 0; index < NumDevices; index++)
+ printf(" Display device %d is PCI device %d\n",index,DeviceIndex[index]);
+ printf("\n");
+ printf("Bus Slot Fnc DeviceID SubSystem Rev Class IRQ Int Cmd\n");
+ for (i = 0; i < NumPCI; i++) {
+ printf("%2d %2d %2d %04X:%04X %04X:%04X %02X %02X:%02X %02X %02X %04X ",
+ PCI[i].slot.p.Bus,
+ PCI[i].slot.p.Device,
+ PCI[i].slot.p.Function,
+ PCI[i].VendorID,
+ PCI[i].DeviceID,
+ PCI[i].u.type0.SubSystemVendorID,
+ PCI[i].u.type0.SubSystemID,
+ PCI[i].RevID,
+ PCI[i].BaseClass,
+ PCI[i].SubClass,
+ PCI[i].u.type0.InterruptLine,
+ PCI[i].u.type0.InterruptPin,
+ PCI[i].Command);
+ for (index = 0; index < NumDevices; index++) {
+ if (DeviceIndex[index] == i)
+ break;
+ }
+ if (index < NumDevices)
+ printf("<- %d\n", index);
+ else
+ printf("\n");
+ }
+ printf("\n");
+ printf("DeviceID Stat Ifc Cch Lat Hdr BIST\n");
+ for (i = 0; i < NumPCI; i++) {
+ printf("%04X:%04X %04X %02X %02X %02X %02X %02X ",
+ PCI[i].VendorID,
+ PCI[i].DeviceID,
+ PCI[i].Status,
+ PCI[i].Interface,
+ PCI[i].CacheLineSize,
+ PCI[i].LatencyTimer,
+ PCI[i].HeaderType,
+ PCI[i].BIST);
+ for (index = 0; index < NumDevices; index++) {
+ if (DeviceIndex[index] == i)
+ break;
+ }
+ if (index < NumDevices)
+ printf("<- %d\n", index);
+ else
+ printf("\n");
+ }
+ printf("\n");
+ printf("DeviceID Base10h Base14h Base18h Base1Ch Base20h Base24h ROMBase\n");
+ for (i = 0; i < NumPCI; i++) {
+ printf("%04X:%04X %08lX %08lX %08lX %08lX %08lX %08lX %08lX ",
+ PCI[i].VendorID,
+ PCI[i].DeviceID,
+ PCI[i].u.type0.BaseAddress10,
+ PCI[i].u.type0.BaseAddress14,
+ PCI[i].u.type0.BaseAddress18,
+ PCI[i].u.type0.BaseAddress1C,
+ PCI[i].u.type0.BaseAddress20,
+ PCI[i].u.type0.BaseAddress24,
+ PCI[i].u.type0.ROMBaseAddress);
+ for (index = 0; index < NumDevices; index++) {
+ if (DeviceIndex[index] == i)
+ break;
+ }
+ if (index < NumDevices)
+ printf("<- %d\n", index);
+ else
+ printf("\n");
+ }
+ printf("\n");
+ printf("DeviceID BAR10Len BAR14Len BAR18Len BAR1CLen BAR20Len BAR24Len ROMLen\n");
+ for (i = 0; i < NumPCI; i++) {
+ printf("%04X:%04X %08lX %08lX %08lX %08lX %08lX %08lX %08lX ",
+ PCI[i].VendorID,
+ PCI[i].DeviceID,
+ PCI[i].u.type0.BaseAddress10Len,
+ PCI[i].u.type0.BaseAddress14Len,
+ PCI[i].u.type0.BaseAddress18Len,
+ PCI[i].u.type0.BaseAddress1CLen,
+ PCI[i].u.type0.BaseAddress20Len,
+ PCI[i].u.type0.BaseAddress24Len,
+ PCI[i].u.type0.ROMBaseAddressLen);
+ for (index = 0; index < NumDevices; index++) {
+ if (DeviceIndex[index] == i)
+ break;
+ }
+ if (index < NumDevices)
+ printf("<- %d\n", index);
+ else
+ printf("\n");
+ }
+ printf("\n");
+ printf("Displaying enumeration of %d bridge devices\n",NumBridges);
+ printf("\n");
+ printf("DeviceID P# S# B# IOB IOL MemBase MemLimit PreBase PreLimit Ctrl\n");
+ for (i = 0; i < NumBridges; i++) {
+ info = (PCIDeviceInfo*)&PCI[BridgeIndex[i]];
+ printf("%04X:%04X %02X %02X %02X %04X %04X %08X %08X %08X %08X %04X\n",
+ info->VendorID,
+ info->DeviceID,
+ info->u.type1.PrimaryBusNumber,
+ info->u.type1.SecondayBusNumber,
+ info->u.type1.SubordinateBusNumber,
+ ((u16)info->u.type1.IOBase << 8) & 0xF000,
+ info->u.type1.IOLimit ?
+ ((u16)info->u.type1.IOLimit << 8) | 0xFFF : 0,
+ ((u32)info->u.type1.MemoryBase << 16) & 0xFFF00000,
+ info->u.type1.MemoryLimit ?
+ ((u32)info->u.type1.MemoryLimit << 16) | 0xFFFFF : 0,
+ ((u32)info->u.type1.PrefetchableMemoryBase << 16) & 0xFFF00000,
+ info->u.type1.PrefetchableMemoryLimit ?
+ ((u32)info->u.type1.PrefetchableMemoryLimit << 16) | 0xFFFFF : 0,
+ info->u.type1.BridgeControl);
+ }
+ printf("\n");
+}
+
+/****************************************************************************
+RETURNS:
+Number of display devices found.
+
+REMARKS:
+This function enumerates the number of available display devices on the
+PCI bus, and returns the number found.
+****************************************************************************/
+static int PCI_enumerateDevices(void)
+{
+ int i,j;
+ PCIDeviceInfo *info;
+
+ // If this is the first time we have been called, enumerate all
+ // devices on the PCI bus.
+ if (NumPCI == -1) {
+ if ((NumPCI = PCI_getNumDevices()) == 0)
+ return -1;
+ PCI = malloc(NumPCI * sizeof(PCI[0]));
+ BridgeIndex = malloc(NumPCI * sizeof(BridgeIndex[0]));
+ DeviceIndex = malloc(NumPCI * sizeof(DeviceIndex[0]));
+ if (!PCI || !BridgeIndex || !DeviceIndex)
+ return -1;
+ for (i = 0; i < NumPCI; i++)
+ PCI[i].dwSize = sizeof(PCI[i]);
+ if (PCI_enumerate(PCI) == 0)
+ return -1;
+
+ // Build a list of all PCI bridge devices
+ for (i = 0,NumBridges = 0,BridgeIndex[0] = -1; i < NumPCI; i++) {
+ if (PCI[i].BaseClass == PCI_BRIDGE_CLASS)
+ BridgeIndex[NumBridges++] = i;
+ }
+
+ // Now build a list of all display class devices
+ for (i = 0,NumDevices = 1,DeviceIndex[0] = -1; i < NumPCI; i++) {
+ if (PCI_IS_DISPLAY_CLASS(&PCI[i])) {
+ if ((PCI[i].Command & 0x3) == 0x3)
+ DeviceIndex[0] = i;
+ else
+ DeviceIndex[NumDevices++] = i;
+ if (PCI[i].slot.p.Bus != 0) {
+ // This device is on a different bus than the primary
+ // PCI bus, so it is probably an AGP device. Find the
+ // AGP bus device that controls that bus so we can
+ // control it.
+ for (j = 0; j < NumBridges; j++) {
+ info = (PCIDeviceInfo*)&PCI[BridgeIndex[j]];
+ if (info->u.type1.SecondayBusNumber == PCI[i].slot.p.Bus) {
+ AGPBridge = info;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ // Enumerate all PCI and bridge devices to standard output
+ EnumeratePCI();
+ }
+ return NumDevices;
+}
+
+int main(void)
+{
+ // Enumerate all PCI devices
+ PM_init();
+ if (PCI_enumerateDevices() < 1) {
+ printf("No PCI display devices found!\n");
+ return -1;
+ }
+ return 0;
+}
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