diff options
author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
---|---|---|
committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /kernel/power/poweroff.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'kernel/power/poweroff.c')
-rw-r--r-- | kernel/power/poweroff.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c new file mode 100644 index 00000000..d5235937 --- /dev/null +++ b/kernel/power/poweroff.c @@ -0,0 +1,46 @@ +/* + * poweroff.c - sysrq handler to gracefully power down machine. + * + * This file is released under the GPL v2 + */ + +#include <linux/kernel.h> +#include <linux/sysrq.h> +#include <linux/init.h> +#include <linux/pm.h> +#include <linux/workqueue.h> +#include <linux/reboot.h> +#include <linux/cpumask.h> + +/* + * When the user hits Sys-Rq o to power down the machine this is the + * callback we use. + */ + +static void do_poweroff(struct work_struct *dummy) +{ + kernel_power_off(); +} + +static DECLARE_WORK(poweroff_work, do_poweroff); + +static void handle_poweroff(int key) +{ + /* run sysrq poweroff on boot cpu */ + schedule_work_on(cpumask_first(cpu_online_mask), &poweroff_work); +} + +static struct sysrq_key_op sysrq_poweroff_op = { + .handler = handle_poweroff, + .help_msg = "powerOff", + .action_msg = "Power Off", + .enable_mask = SYSRQ_ENABLE_BOOT, +}; + +static int pm_sysrq_init(void) +{ + register_sysrq_key('o', &sysrq_poweroff_op); + return 0; +} + +subsys_initcall(pm_sysrq_init); |