Initial revision

1 files changed, 51 insertions, 0 deletions

diff --git a/hw/xfree86/int10/pci.c b/hw/xfree86/int10/pci.c
new file mode 100644
index 000000000..debd842e7
--- /dev/null
+++ b/hw/xfree86/int10/pci.c
@@ -0,0 +1,51 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/int10/pci.c,v 1.12 2002/04/04 14:05:51 eich Exp $ */
+
+/*
+ *                   XFree86 int10 module
+ *   execute BIOS int 10h calls in x86 real mode environment
+ *                 Copyright 1999 Egbert Eich
+ */
+#include "xf86Pci.h"
+#include "xf86.h"
+#include "xf86_ansic.h"
+#define _INT10_PRIVATE
+#include "xf86int10.h"
+
+int
+mapPciRom(int pciEntity, unsigned char * address)
+{
+    PCITAG tag;
+    unsigned char *mem, *ptr;
+    int length;
+    
+    pciVideoPtr pvp = xf86GetPciInfoForEntity(pciEntity);
+
+    if (pvp == NULL) {
+#ifdef DEBUG
+	ErrorF("mapPciRom: no PCI info\n");
+#endif
+	return 0;
+    }
+
+    tag = pciTag(pvp->bus,pvp->device,pvp->func);
+    length = 1 << pvp->biosSize;
+
+    /* Read in entire PCI ROM */
+    mem = ptr = xnfcalloc(length, 1);
+    length = xf86ReadPciBIOS(0, tag, -1, ptr, length);
+    if (length > 0)
+	memcpy(address, ptr, length);
+    /* unmap/close/disable PCI bios mem */
+    xfree(mem);
+
+#ifdef DEBUG
+    if (!length)
+	ErrorF("mapPciRom: no BIOS found\n");
+#ifdef PRINT_PCI
+    else
+	dprint(address,0x20);
+#endif
+#endif
+
+    return length;
+}