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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/acpi/sleep/poweroff.c | |
download | op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/acpi/sleep/poweroff.c')
-rw-r--r-- | drivers/acpi/sleep/poweroff.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c new file mode 100644 index 0000000..da23775 --- /dev/null +++ b/drivers/acpi/sleep/poweroff.c @@ -0,0 +1,39 @@ +/* + * poweroff.c - ACPI handler for powering off the system. + * + * AKA S5, but it is independent of whether or not the kernel supports + * any other sleep support in the system. + */ + +#include <linux/pm.h> +#include <linux/init.h> +#include <acpi/acpi_bus.h> +#include <linux/sched.h> +#include "sleep.h" + +static void +acpi_power_off (void) +{ + printk("%s called\n",__FUNCTION__); + /* Some SMP machines only can poweroff in boot CPU */ + set_cpus_allowed(current, cpumask_of_cpu(0)); + acpi_wakeup_gpe_poweroff_prepare(); + acpi_enter_sleep_state_prep(ACPI_STATE_S5); + ACPI_DISABLE_IRQS(); + acpi_enter_sleep_state(ACPI_STATE_S5); +} + +static int acpi_poweroff_init(void) +{ + if (!acpi_disabled) { + u8 type_a, type_b; + acpi_status status; + + status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); + if (ACPI_SUCCESS(status)) + pm_power_off = acpi_power_off; + } + return 0; +} + +late_initcall(acpi_poweroff_init); |