drivers/video/mdacon.c

This patch is against linux-2417/drivers/video/mdacon.c to get non-Hercules MDA working. Actually it does nothing, than assume a non Hercules-MDA is compatible to "normal" Hercules. The current behaviour is something confussing...

The problem whith the current version is, if you have such a non-Hercules MDA it will detected while booting the kernel and you see a message like "MDA with 8k RAM detected". Unfortunatley this message is printed, but your card will _not_ be initialized, is it not recognized as Hercules-compatible. So you will see the boot-message (and assume it is working), but nothing on your MDA-console/monitor. So we have to change this. It would be correct, to modify mdacon.c to _not_ print a message about detecting a MDA is it not Hercules-compatible. But as i mentioned above, at least my card is detected as non-Hercules but seems fully compatible. So I would prefer, to consider any detected non-Hercules MDA as Hercules-compatible. Please note, there is also some special detection of "HerculesPlus" and "HerculesColor" in mdacon.c. Does anybody know about any non Hercules compatible MDA ?

TiA,
Jan

------------------

@@ -24,6 +24,7 @@
 *
 *  Changelog:
 *  Paul G. (03/2001) Fix mdacon= boot prompt to use __setup().
+ *  20011230 [email protected] - consider non-Hercules MDA compatible
 */
 

#include <linux/types.h>
@@ -291,6 +292,10 @@

                               break;
               }
       }
+       else {  /* consider non-Hercules as Hercules-compatible */
+               mda_type = TYPE_HERC;
+               mda_type_name = "Hercules compatible (hopefully)";

+ }

       return 1;
}
@@ -342,9 +347,8 @@
               return NULL;
       }

- if (mda_type != TYPE_MDA) {
- mda_initialize();

-       }
+       /* at this point, we found an MDA */
+       mda_initialize();

       /* cursor looks ugly during boot-up, so turn it off */
       mda_set_cursor(mda_vram_len - 1);