vgabios: handle vmware vga in bochsvga.

[seabios.git] / vgasrc / bochsvga.c

diff --git a/vgasrc/bochsvga.c b/vgasrc/bochsvga.c
index 2a4b0d5bb27e48f3d242d6fb601f0c5d683db4bd..e40a1fd507eefa92a5a234d20dcd094711f93539 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
@@ -131,16 +139,25 @@ bochsvga_init(void)
 
     u32 lfb_addr = VBE_DISPI_LFB_PHYSICAL_ADDRESS;
     int bdf = GET_GLOBAL(VgaBDF);
-    if (CONFIG_VGA_PCI && bdf >= 0)
-        lfb_addr = (pci_config_readl(bdf, PCI_BASE_ADDRESS_0)
-                    & PCI_BASE_ADDRESS_MEM_MASK);
+    if (CONFIG_VGA_PCI && bdf >= 0) {
+        int barid = 0;
+        u32 bar = pci_config_readl(bdf, PCI_BASE_ADDRESS_0);
+        if ((bar & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_MEMORY) {
+            barid = 1;
+            bar = pci_config_readl(bdf, PCI_BASE_ADDRESS_1);
+        }
+        lfb_addr = bar & PCI_BASE_ADDRESS_MEM_MASK;
+        dprintf(1, "VBE DISPI: bdf %02x:%02x.%x, bar %d\n", pci_bdf_to_bus(bdf)
+                , pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf), barid);
+    }
 
     SET_VGA(VBE_framebuffer, lfb_addr);
     u16 totalmem = dispi_read(VBE_DISPI_INDEX_VIDEO_MEMORY_64K);
     SET_VGA(VBE_total_memory, totalmem * 64 * 1024);
     SET_VGA(VBE_capabilities, VBE_CAPABILITY_8BIT_DAC);
 
-    dprintf(1, "VBE DISPI detected. lfb_addr=%x\n", lfb_addr);
+    dprintf(1, "VBE DISPI: lfb_addr=%x, size %d MB\n",
+            lfb_addr, totalmem / 16);
 
     return 0;
 }
@@ -232,6 +249,27 @@ bochsvga_set_linelength(struct vgamode_s *vmode_g, int val)
     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)
 {