vgabios: Add scrolling for linear (packed pixel) graphics mode.

[seabios.git] / vgasrc / clext.c

diff --git a/vgasrc/clext.c b/vgasrc/clext.c
index 7774ba3c2f0b4663ebe8265f87436b085cd85295..afab5820633b931e06dc5b3f453a097099040fc4 100644 (file)
--- a/vgasrc/clext.c
+++ b/vgasrc/clext.c
@@ -5,7 +5,8 @@
 //
 // This file may be distributed under the terms of the GNU LGPLv3 license.
 
-#include "vgabios.h" // cirrus_init
+#include "clext.h" // clext_init
+#include "vgabios.h" // VBE_VENDOR_STRING
 #include "biosvar.h" // GET_GLOBAL
 #include "util.h" // dprintf
 #include "bregs.h" // struct bregs
@@ -392,22 +393,22 @@ cirrus_clear_vram(u16 param)
 }
 
 int
-cirrus_set_video_mode(u8 mode, u8 noclearmem)
+clext_set_mode(int mode, int flags)
 {
     dprintf(1, "cirrus mode %d\n", mode);
     SET_BDA(vbe_mode, 0);
     struct cirrus_mode_s *table_g = cirrus_get_modeentry(mode);
     if (table_g) {
         cirrus_switch_mode(table_g);
-        if (!noclearmem)
+        if (!(flags & MF_NOCLEARMEM))
             cirrus_clear_vram(0xffff);
         SET_BDA(video_mode, mode);
-        return 1;
+        return 0;
     }
     table_g = cirrus_get_modeentry(0xfe);
     cirrus_switch_mode(table_g);
     dprintf(1, "cirrus mode switch regular\n");
-    return 0;
+    return stdvga_set_mode(mode, flags);
 }
 
 static int
@@ -931,12 +932,16 @@ cirrus_vesa(struct bregs *regs)
  * init
  ****************************************************************/
 
-void
-cirrus_init(void)
+int
+clext_init(void)
 {
+    int ret = stdvga_init();
+    if (ret)
+        return ret;
+
     dprintf(1, "cirrus init\n");
     if (! cirrus_check())
-        return;
+        return -1;
     dprintf(1, "cirrus init 2\n");
 
     // memory setup
@@ -948,4 +953,6 @@ cirrus_init(void)
     // reset bitblt
     outw(0x0431, VGAREG_GRDC_ADDRESS);
     outw(0x0031, VGAREG_GRDC_ADDRESS);
+
+    return 0;
 }