lkml.org 
[lkml]   [2004]   [Nov]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
SubjectSuspend 2 merge: 24/51: Keyboard and serial console hooks.
From
Date
Here we add simple hooks so that the user can interact with suspend
while it is running. (Hmm. The serial console condition could be
simplified :>). The hooks allow you to do such things as:

- cancel suspending
- change the amount of detail of debugging info shown
- change what debugging info is shown
- pause the process
- single step
- toggle rebooting instead of powering down

diff -ruN 702-keyboard-and-8250-hooks-old/drivers/char/keyboard.c 702-keyboard-and-8250-hooks-new/drivers/char/keyboard.c
--- 702-keyboard-and-8250-hooks-old/drivers/char/keyboard.c 2004-11-24 18:50:00.959995424 +1100
+++ 702-keyboard-and-8250-hooks-new/drivers/char/keyboard.c 2004-11-24 18:03:32.040404608 +1100
@@ -33,6 +33,7 @@
#include <linux/string.h>
#include <linux/random.h>
#include <linux/init.h>
+#include <linux/suspend.h>
#include <linux/slab.h>

#include <linux/kbd_kern.h>
@@ -1091,6 +1092,10 @@
return;
}
#endif
+ if (down && (test_suspend_state(SUSPEND_RUNNING))) {
+ suspend_handle_keypress(keycode, SUSPEND_KEY_KEYBOARD);
+ return;
+ }
#if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
if (keycode == KEY_A && sparc_l1_a_state) {
sparc_l1_a_state = 0;
diff -ruN 702-keyboard-and-8250-hooks-old/drivers/serial/8250.c 702-keyboard-and-8250-hooks-new/drivers/serial/8250.c
--- 702-keyboard-and-8250-hooks-old/drivers/serial/8250.c 2004-11-24 18:50:00.962994968 +1100
+++ 702-keyboard-and-8250-hooks-new/drivers/serial/8250.c 2004-11-24 18:49:53.882071432 +1100
@@ -39,6 +39,7 @@
#include <linux/serial_core.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/suspend.h>

#include <asm/io.h>
#include <asm/irq.h>
@@ -1068,6 +1069,15 @@
}
if (uart_handle_sysrq_char(&up->port, ch, regs))
goto ignore_char;
+
+#if defined(CONFIG_SERIAL_CORE_CONSOLE) && defined(CONFIG_SOFTWARE_SUSPEND2)
+ if (test_suspend_state(SUSPEND_SANITY_CHECK_PROMPT) ||
+ test_suspend_state(SUSPEND_RUNNING)) {
+ suspend_handle_keypress(ch, SUSPEND_KEY_SERIAL);
+ goto ignore_char;
+ }
+#endif
+
if ((lsr & up->port.ignore_status_mask) == 0) {
tty_insert_flip_char(tty, ch, flag);
}

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:08    [W:1.005 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site