added testbios for V2

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1624 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 172 insertions, 0 deletions

diff --git a/util/vgabios/int1a.c b/util/vgabios/int1a.c
new file mode 100644
index 0000000000..48aa13e9a1
--- /dev/null
+++ b/util/vgabios/int1a.c
@@ -0,0 +1,172 @@
+#include <stdio.h>
+#include "test.h"
+#include "pci-userspace.h"
+
+#define DEBUG_INT1A
+
+#define SUCCESSFUL              0x00
+#define DEVICE_NOT_FOUND        0x86
+#define BAD_REGISTER_NUMBER     0x87
+
+void x86emu_dump_xregs(void);
+extern int verbose;
+
+
+int int1A_handler()
+{
+	PCITAG tag;
+	pciVideoPtr pvp = NULL;
+
+	if (verbose) {
+		printf("\nint1a encountered.\n");
+		x86emu_dump_xregs();
+	}
+
+	switch (X86_AX) {
+	case 0xb101:
+		X86_EAX = 0x00;	/* no config space/special cycle support */
+		X86_AL = 0x01;	/* config mechanism 1 */
+		X86_EDX = 0x20494350;	/* " ICP" */
+		X86_EBX = 0x0210;	/* Version 2.10 */
+		X86_ECX &= 0xFF00;
+		X86_ECX |= (pciNumBuses & 0xFF);	/* Max bus number in system */
+		X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+#ifdef DEBUG_INT1A
+		if (verbose)
+			printf("PCI bios present.\n");
+#endif
+		return 1;
+	case 0xb102:
+		if (X86_DX == pvp->vendor_id && X86_CX == pvp->device_id && X86_ESI == 0) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+			X86_EBX = pciSlotBX(pvp);
+		}
+#ifdef SHOW_ALL_DEVICES
+		else if ((pvp = xf86FindPciDeviceVendor(X86_EDX, X86_ECX, X86_ESI, pvp))) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+			X86_EBX = pciSlotBX(pvp);
+		}
+#endif
+		else {
+			X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ebx=0x%x eflags=0x%x\n", X86_EAX, X86_EBX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb103:
+#if 0
+		if (X86_CL == pvp->interface &&
+		    X86_CH == pvp->subclass &&
+		    ((X86_ECX & 0xFFFF0000) >> 16) == pvp->class) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EBX = pciSlotBX(pvp);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		}
+#else
+		/* FIXME: dirty hack */
+		if (0);
+#endif
+#ifdef SHOW_ALL_DEVICES
+		else if ((pvp = FindPciClass(X86_CL, X86_CH,
+					     (X86_ECX & 0xffff0000) >> 16,
+					     X86_ESI, pvp))) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+			X86_EBX = pciSlotBX(pvp);
+		}
+#endif
+		else {
+			X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb108:
+		if ((tag = findPci(X86_EBX))) {
+			X86_CL = pciReadByte(tag, X86_EDI);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb109:
+		if ((tag = findPci(X86_EBX))) {
+			X86_CX = pciReadWord(tag, X86_EDI);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10a:
+		if ((tag = findPci(X86_EBX))) {
+			X86_ECX = pciReadLong(tag, X86_EDI);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10b:
+		if ((tag = findPci(X86_EBX))) {
+			pciWriteByte(tag, X86_EDI, X86_CL);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10c:
+		if ((tag = findPci(X86_EBX))) {
+			pciWriteWord(tag, X86_EDI, X86_CX);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10d:
+		if ((tag = findPci(X86_EBX))) {
+			pciWriteLong(tag, X86_EDI, X86_ECX);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	default:
+		printf("int1a: subfunction not implemented.\n");
+		return 0;
+	}
+}