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Compile-time option to duplicate console output to the first serial line

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This commit is contained in:
Philip Homburg 2007-08-07 11:27:03 +00:00
parent acfaea0fa2
commit 1d4afb3599
1 changed files with 18 additions and 1 deletions
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19
drivers/tty/console.c
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@ -28,6 +28,11 @@
#include "../../kernel/config.h"
#include "../../kernel/type.h"
/* Set this to 1 if you want console output duplicated on the first
* serial line.
*/
#define DUP_CONS_TO_SER 0
/* Definitions used by the console driver. */
#define MONO_BASE 0xB0000L /* base of mono video memory */
#define COLOR_BASE 0xB8000L /* base of color video memory */
@ -204,6 +209,9 @@ int try;
{
out_char(cons, *tbuf++);
} else {
#if DUP_CONS_TO_SER
if (cons == &cons_table[0]) ser_putc(*tbuf);
#endif
cons->c_ramqueue[cons->c_rwords++] =
cons->c_attr | (*tbuf++ & BYTE);
cons->c_column++;
@ -249,6 +257,15 @@ int c; /* character to be output */
return;
}
#if DUP_CONS_TO_SER
if (cons == &cons_table[0] && c != '\0')
{
if (c == '\n')
ser_putc('\r');
ser_putc(c);
}
#endif
switch(c) {
case 000: /* null is typically used for padding */
return; /* better not do anything */
@ -1355,7 +1372,7 @@ PRIVATE void ser_putc(char c)
lsr= COM1_LSR;
thr= COM1_THR;
for (i= 0; i<100; i++)
for (i= 0; i<10000; i++)
{
sys_inb(lsr, &b);
if (b & LSR_THRE)