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[IA64] Replace stale KDB-code with useful MAGIC_SYSRQ code in simserial.c

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Patch makes it possible to use the "F4" function key to do
magic sysrq in the HP Ski simulator.

Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
David Mosberger-Tang
2005-06-09 22:40:00 -07:00
committed by Tony Luck
parent c1ffb6a8aa
commit 819c67e69c
1 changed files with 11 additions and 5 deletions
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16
arch/ia64/hp/sim/simserial.c
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@@ -30,6 +30,7 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/serial.h> #include <linux/serial.h>
#include <linux/serialP.h> #include <linux/serialP.h>
#include <linux/sysrq.h>
#include <asm/irq.h> #include <asm/irq.h>
#include <asm/hw_irq.h> #include <asm/hw_irq.h>
@@ -149,12 +150,17 @@ static void receive_chars(struct tty_struct *tty, struct pt_regs *regs)
seen_esc = 2; seen_esc = 2;
continue; continue;
} else if ( seen_esc == 2 ) { } else if ( seen_esc == 2 ) {
if ( ch == 'P' ) show_state(); /* F1 key */ if ( ch == 'P' ) /* F1 */
#ifdef CONFIG_KDB show_state();
if ( ch == 'S' ) #ifdef CONFIG_MAGIC_SYSRQ
kdb(KDB_REASON_KEYBOARD, 0, (kdb_eframe_t) regs); if ( ch == 'S' ) { /* F4 */
do
ch = ia64_ssc(0, 0, 0, 0,
SSC_GETCHAR);
while (!ch);
handle_sysrq(ch, regs, NULL);
}
#endif #endif
seen_esc = 0; seen_esc = 0;
continue; continue;
} }