vgahooks: add SM720 VGA BIOS hooks for WIN Enterprises MB-60470

Add vgahooks to support the SMI SM720 VGA BIOS used on the
WIN Enterprises MB-60470.  The response from smi_157f14() is necessary
for the CRT output to turn on.  The response from smi_157f02() is used
to configure which connector(s) output is routed to.

As I lack hardware to test LCD panel output, I've selected CRT-only
output on the MB-60470 as this prevents the CRT output from being scaled
to the resolution of the LCD panel.

Signed-off-by: Jonathan A. Kollasch <jakllsch@kollasch.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index d51e30f7..c9d463dc 100644
--- a/src/util.h
+++ b/src/util.h
@@ -218,6 +218,7 @@ void lpt_setup(void);
 
 // vgahooks.c
 void handle_155f(struct bregs *regs);
+void handle_157f(struct bregs *regs);
 void vgahook_setup(struct pci_device *pci);