The kernel command line setup function for MDA console support is
currently dangling in outer space and not called (and hence non
functional). There was also a warning about a non used function
whose callers were half /* */ 'ed out so I cleaned that up as well.
Patch should apply to any recent 2.4.x kernel.
Paul.
--- drivers/video/mdacon.c~ Wed Feb 14 02:41:44 2001
+++ drivers/video/mdacon.c Mon Mar 12 19:37:21 2001
@@ -21,6 +21,9 @@
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
+ *
+ * Changelog:
+ * Paul G. (03/2001) Fix mdacon= boot prompt to use __setup().
*/
#include <linux/types.h>
@@ -129,6 +132,7 @@
spin_unlock_irqrestore(&mda_lock, flags);
}
+#ifdef TEST_MDA_B
static int test_mda_b(unsigned char val, unsigned char reg)
{
unsigned long flags;
@@ -143,6 +147,7 @@
spin_unlock_irqrestore(&mda_lock, flags);
return val;
}
+#endif
static inline void mda_set_origin(unsigned int location)
{
@@ -182,20 +187,27 @@
#ifndef MODULE
-void __init mdacon_setup(char *str, int *ints)
+static int __init mdacon_setup(char *str)
{
/* command line format: mdacon=<first>,<last> */
+ int ints[3];
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
if (ints[0] < 2)
- return;
+ return 0;
if (ints[1] < 1 || ints[1] > MAX_NR_CONSOLES ||
ints[2] < 1 || ints[2] > MAX_NR_CONSOLES)
- return;
+ return 0;
- mda_first_vc = ints[1]-1;
- mda_last_vc = ints[2]-1;
+ mda_first_vc = ints[1];
+ mda_last_vc = ints[2];
+ return 1;
}
+
+__setup("mdacon=", mdacon_setup);
#endif
static int __init mda_detect(void)
@@ -237,17 +249,19 @@
* memory location, so now we do an I/O port test.
*/
+#ifdef TEST_MDA_B
/* Edward: These two mess `tests' mess up my cursor on bootup */
/* cursor low register */
- /* if (! test_mda_b(0x66, 0x0f)) {
+ if (! test_mda_b(0x66, 0x0f)) {
return 0;
- } */
+ }
/* cursor low register */
- /* if (! test_mda_b(0x99, 0x0f)) {
+ if (! test_mda_b(0x99, 0x0f)) {
return 0;
- } */
+ }
+#endif
/* See if the card is a Hercules, by checking whether the vsync
* bit of the status register is changing. This test lasts for
-
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