Hi,
i finally tested it and it seems to work.
> + case SNAPSHOT_POWEROFF:
> + if (pm_disk_mode == PM_DISK_PLATFORM) {
> + kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
> + error = pm_ops->enter(PM_SUSPEND_DISK);
> + } else {
> + kernel_power_off();
> + }
> + break;
> +
> + case SNAPSHOT_POWERUP:
> + if (pm_disk_mode == PM_DISK_PLATFORM) {
> + if (pm_ops && pm_ops->finish)
> + pm_ops->finish(PM_SUSPEND_DISK);
> + }
a break is missing here.
> default:
> error = -ENOTTY;
>
This is the accompanying userspace change (yes, with ugly debug stuff in
there):
Index: resume.c
===================================================================
RCS file: /cvsroot/suspend/suspend/resume.c,v
retrieving revision 1.27
diff -u -p -r1.27 resume.c
--- resume.c 23 Jul 2006 11:32:52 -0000 1.27
+++ resume.c 12 Sep 2006 06:49:54 -0000
@@ -769,6 +769,7 @@ int main(int argc, char *argv[])
fprintf(stderr, "resume: Could not freeze processes\n");
goto Close;
}
+ platform_finish(dev);
atomic_restore(dev);
unfreeze(dev);
splash.finish();
Index: suspend.c
===================================================================
RCS file: /cvsroot/suspend/suspend/suspend.c,v
retrieving revision 1.48
diff -u -p -r1.48 suspend.c
--- suspend.c 23 Jul 2006 11:32:52 -0000 1.48
+++ suspend.c 12 Sep 2006 06:49:55 -0000
@@ -636,9 +636,10 @@ static int reset_signature(int fd)
}
#endif
-static void suspend_shutdown(void)
+static void suspend_shutdown(int dev)
{
- power_off();
+ printf("userspace: executing %s\n", __FUNCTION__);
+ ioctl(dev, SNAPSHOT_POWEROFF);
/* Signature is on disk, it is very dangerous to continue now.
* We'd do resume with stale caches on next boot. */
printf("Powerdown failed. That's impossible.\n");
@@ -694,14 +695,14 @@ int suspend_system(int snapshot_fd, int
splash.progress(100);
#ifdef CONFIG_BOTH
if (!s2ram) {
- suspend_shutdown();
+ suspend_shutdown(snapshot_fd);
} else {
/* If we die (and allow system to
continue) between
* now and reset_signature(), very bad
things will
* happen. */
error = suspend_to_ram(snapshot_fd);
if (error)
- suspend_shutdown();
+ suspend_shutdown(snapshot_fd);
reset_signature(resume_fd);
free_swap_pages(snapshot_fd);
free_snapshot(snapshot_fd);
@@ -709,7 +710,7 @@ int suspend_system(int snapshot_fd, int
goto Unfreeze;
}
#else
- suspend_shutdown();
+ suspend_shutdown(snapshot_fd);
#endif
} else {
free_swap_pages(snapshot_fd);
Index: swsusp.h
===================================================================
RCS file: /cvsroot/suspend/suspend/swsusp.h,v
retrieving revision 1.25
diff -u -p -r1.25 swsusp.h
--- swsusp.h 3 Sep 2006 22:04:34 -0000 1.25
+++ swsusp.h 12 Sep 2006 06:49:55 -0000
@@ -26,7 +26,9 @@
#define SNAPSHOT_FREE_SWAP_PAGES _IO(SNAPSHOT_IOC_MAGIC, 9)
#define SNAPSHOT_SET_SWAP_FILE _IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned
int)
#define SNAPSHOT_S2RAM _IO(SNAPSHOT_IOC_MAGIC, 11)
-#define SNAPSHOT_IOC_MAXNR 11
+#define SNAPSHOT_POWEROFF _IO(SNAPSHOT_IOC_MAGIC, 12)
+#define SNAPSHOT_POWERUP _IO(SNAPSHOT_IOC_MAGIC, 13)
+#define SNAPSHOT_IOC_MAXNR 13
#define LINUX_REBOOT_MAGIC1 0xfee1dead
#define LINUX_REBOOT_MAGIC2 672274793
@@ -98,6 +100,12 @@ static inline int atomic_restore(int dev
return ioctl(dev, SNAPSHOT_ATOMIC_RESTORE, 0);
}
+static inline void platform_finish(int dev)
+{
+ printf("userspace: executing %s\n", __FUNCTION__);
+ ioctl (dev, SNAPSHOT_POWERUP);
+}
+
static inline int free_snapshot(int dev)
{
return ioctl(dev, SNAPSHOT_FREE, 0);
@@ -119,11 +127,13 @@ static inline void reboot(void)
LINUX_REBOOT_CMD_RESTART, 0);
}
+#if 0
static inline void power_off(void)
{
syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
LINUX_REBOOT_CMD_POWER_OFF, 0);
}
+#endif
#ifndef SYS_sync_file_range
#ifdef __i386__
--
Stefan Seyfried
QA / R&D Team Mobile Devices | "Any ideas, John?"
SUSE LINUX Products GmbH, Nürnberg | "Well, surrounding them's out."
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