vgabios: Update copyright statements in bochsvga.c and vbe.c.

[seabios.git] / vgasrc / bochsvga.c

diff --git a/vgasrc/bochsvga.c b/vgasrc/bochsvga.c
index 6cbbf9c8fddff1ec4a2016fffaa56bb356928800..5770e106a565f627b48e02898cf505da0c02e6a8 100644 (file)
--- a/vgasrc/bochsvga.c
+++ b/vgasrc/bochsvga.c
@@ -1,3 +1,11 @@
+// Bochs VGA interface to extended "VBE" modes
+//
+// Copyright (C) 2012  Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2011  Julian Pidancet <julian.pidancet@citrix.com>
+//  Copyright (C) 2002 Jeroen Janssen
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
 #include "vgabios.h" // struct vbe_modeinfo
 #include "vbe.h" // VBE_CAPABILITY_8BIT_DAC
 #include "bochsvga.h" // bochsvga_set_mode
@@ -198,6 +206,61 @@ bochsvga_hires_enable(int enable)
     dispi_write(VBE_DISPI_INDEX_ENABLE, flags);
 }
 
+int
+bochsvga_get_window(struct vgamode_s *vmode_g, int window)
+{
+    if (window != 0)
+        return -1;
+    return dispi_read(VBE_DISPI_INDEX_BANK);
+}
+
+int
+bochsvga_set_window(struct vgamode_s *vmode_g, int window, int val)
+{
+    if (window != 0)
+        return -1;
+    dispi_write(VBE_DISPI_INDEX_BANK, val);
+    if (dispi_read(VBE_DISPI_INDEX_BANK) != val)
+        return -1;
+    return 0;
+}
+
+int
+bochsvga_get_linelength(struct vgamode_s *vmode_g)
+{
+    return dispi_read(VBE_DISPI_INDEX_VIRT_WIDTH) * vga_bpp(vmode_g) / 8;
+}
+
+int
+bochsvga_set_linelength(struct vgamode_s *vmode_g, int val)
+{
+    stdvga_set_linelength(vmode_g, val);
+    int pixels = (val * 8) / vga_bpp(vmode_g);
+    dispi_write(VBE_DISPI_INDEX_VIRT_WIDTH, pixels);
+    return 0;
+}
+
+int
+bochsvga_get_displaystart(struct vgamode_s *vmode_g)
+{
+    int bpp = vga_bpp(vmode_g);
+    int linelength = dispi_read(VBE_DISPI_INDEX_VIRT_WIDTH) * bpp / 8;
+    int x = dispi_read(VBE_DISPI_INDEX_X_OFFSET);
+    int y = dispi_read(VBE_DISPI_INDEX_Y_OFFSET);
+    return x * bpp / 8 + linelength * y;
+}
+
+int
+bochsvga_set_displaystart(struct vgamode_s *vmode_g, int val)
+{
+    stdvga_set_displaystart(vmode_g, val);
+    int bpp = vga_bpp(vmode_g);
+    int linelength = dispi_read(VBE_DISPI_INDEX_VIRT_WIDTH) * bpp / 8;
+    dispi_write(VBE_DISPI_INDEX_X_OFFSET, (val % linelength) * 8 / bpp);
+    dispi_write(VBE_DISPI_INDEX_Y_OFFSET, val / linelength);
+    return 0;
+}
+
 static void
 bochsvga_clear_scr(void)
 {