vga: add atiext driver

Supports qemu emulated ati cards.  They have been added in qemu 4.0.
Acceleration support (in qemu) is pretty rough still.  A simple
framebuffer works fine though.

Available models:
 * ati rage 128 pro
 * ati rv100

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/vgasrc/vgautil.h b/vgasrc/vgautil.h
index 4f37bf94..a9940402 100644
--- a/vgasrc/vgautil.h
+++ b/vgasrc/vgautil.h
@@ -42,6 +42,12 @@ struct bregs;
 void clext_1012(struct bregs *regs);
 int clext_setup(void);
 
+// atiext.c
+struct vgamode_s *ati_find_mode(int mode);
+void ati_list_modes(u16 seg, u16 *dest, u16 *last);
+int ati_set_mode(struct vgamode_s *vmode_g, int flags);
+int ati_setup(void);
+
 // stdvgaio.c
 u8 stdvga_pelmask_read(void);
 void stdvga_pelmask_write(u8 val);