From f216cc3748a3a22c2b99390fddcdafa0583791a2 Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Thu, 20 Sep 2007 21:32:35 +0400 Subject: ACPI: suspend: consolidate handling of Sx states. Recent changes to sleep initialization in ACPI dropped reporting of supported Sx states above S3. Fix that and also move S5 init into same file as other Sx. The only functional change is adding printk() for S4 and S5 cases. Signed-off-by: Alexey Starikovskiy Acked-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/sleep/Makefile | 2 +- drivers/acpi/sleep/main.c | 53 +++++++++++++++++++++++++++--- drivers/acpi/sleep/poweroff.c | 75 ------------------------------------------- 3 files changed, 49 insertions(+), 81 deletions(-) delete mode 100644 drivers/acpi/sleep/poweroff.c (limited to 'drivers/acpi') diff --git a/drivers/acpi/sleep/Makefile b/drivers/acpi/sleep/Makefile index 195a4f69c0f..ba9bd403d44 100644 --- a/drivers/acpi/sleep/Makefile +++ b/drivers/acpi/sleep/Makefile @@ -1,4 +1,4 @@ -obj-y := poweroff.o wakeup.o +obj-y := wakeup.o obj-$(CONFIG_ACPI_SLEEP) += main.o obj-$(CONFIG_ACPI_SLEEP) += proc.o diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index c52ade816fb..638172fe682 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -15,6 +15,9 @@ #include #include #include + +#include + #include #include #include "sleep.h" @@ -57,6 +60,27 @@ static int acpi_pm_set_target(suspend_state_t pm_state) return error; } +int acpi_sleep_prepare(u32 acpi_state) +{ +#ifdef CONFIG_ACPI_SLEEP + /* do we have a wakeup address for S2 and S3? */ + if (acpi_state == ACPI_STATE_S3) { + if (!acpi_wakeup_address) { + return -EFAULT; + } + acpi_set_firmware_waking_vector((acpi_physical_address) + virt_to_phys((void *) + acpi_wakeup_address)); + + } + ACPI_FLUSH_CPU_CACHE(); + acpi_enable_wakeup_device_prep(acpi_state); +#endif + acpi_gpe_sleep_prepare(acpi_state); + acpi_enter_sleep_state_prep(acpi_state); + return 0; +} + /** * acpi_pm_prepare - Do preliminary suspend work. * @pm_state: ignored @@ -350,6 +374,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p) return d_max; } +static void acpi_power_off_prepare(void) +{ + /* Prepare to power off the system */ + acpi_sleep_prepare(ACPI_STATE_S5); +} + +static void acpi_power_off(void) +{ + /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ + printk("%s called\n", __FUNCTION__); + local_irq_disable(); + acpi_enter_sleep_state(ACPI_STATE_S5); +} + int __init acpi_sleep_init(void) { acpi_status status; @@ -363,8 +401,8 @@ int __init acpi_sleep_init(void) if (acpi_disabled) return 0; +printk(KERN_INFO PREFIX "(supports"); #ifdef CONFIG_SUSPEND - printk(KERN_INFO PREFIX "(supports"); for (i = ACPI_STATE_S0; i < ACPI_STATE_S4; i++) { status = acpi_get_sleep_type_data(i, &type_a, &type_b); if (ACPI_SUCCESS(status)) { @@ -372,7 +410,6 @@ int __init acpi_sleep_init(void) printk(" S%d", i); } } - printk(")\n"); pm_set_ops(&acpi_pm_ops); #endif @@ -382,10 +419,16 @@ int __init acpi_sleep_init(void) if (ACPI_SUCCESS(status)) { hibernation_set_ops(&acpi_hibernation_ops); sleep_states[ACPI_STATE_S4] = 1; + printk(" S4"); } -#else - sleep_states[ACPI_STATE_S4] = 0; #endif - + status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); + if (ACPI_SUCCESS(status)) { + sleep_states[ACPI_STATE_S5] = 1; + printk(" S5"); + pm_power_off_prepare = acpi_power_off_prepare; + pm_power_off = acpi_power_off; + } + printk(")\n"); return 0; } diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c deleted file mode 100644 index 39e40d56b03..00000000000 --- a/drivers/acpi/sleep/poweroff.c +++ /dev/null @@ -1,75 +0,0 @@ -/* - * 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. - * - * Copyright (c) 2005 Alexey Starikovskiy - * - * This file is released under the GPLv2. - */ - -#include -#include -#include -#include -#include -#include "sleep.h" - -int acpi_sleep_prepare(u32 acpi_state) -{ -#ifdef CONFIG_ACPI_SLEEP - /* do we have a wakeup address for S2 and S3? */ - if (acpi_state == ACPI_STATE_S3) { - if (!acpi_wakeup_address) { - return -EFAULT; - } - acpi_set_firmware_waking_vector((acpi_physical_address) - virt_to_phys((void *) - acpi_wakeup_address)); - - } - ACPI_FLUSH_CPU_CACHE(); - acpi_enable_wakeup_device_prep(acpi_state); -#endif - acpi_gpe_sleep_prepare(acpi_state); - acpi_enter_sleep_state_prep(acpi_state); - return 0; -} - -#ifdef CONFIG_PM - -static void acpi_power_off_prepare(void) -{ - /* Prepare to power off the system */ - acpi_sleep_prepare(ACPI_STATE_S5); -} - -static void acpi_power_off(void) -{ - /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ - printk("%s called\n", __FUNCTION__); - local_irq_disable(); - /* Some SMP machines only can poweroff in boot CPU */ - 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_prepare = acpi_power_off_prepare; - pm_power_off = acpi_power_off; - } - } - return 0; -} - -late_initcall(acpi_poweroff_init); - -#endif /* CONFIG_PM */ -- cgit v1.2.3-70-g09d2 From 5a50fe709d527f31169263e36601dd83446d5744 Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Thu, 20 Sep 2007 22:27:44 +0200 Subject: ACPI: suspend: consolidate handling of Sx states addendum Make the S0 state be always reported as supported Signed-off: Frans Pop Acked-by: Alexey Starikovskiy Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/sleep/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 638172fe682..85633c585aa 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -401,9 +401,11 @@ int __init acpi_sleep_init(void) if (acpi_disabled) return 0; -printk(KERN_INFO PREFIX "(supports"); + sleep_states[ACPI_STATE_S0] = 1; + printk(KERN_INFO PREFIX "(supports S0"); + #ifdef CONFIG_SUSPEND - for (i = ACPI_STATE_S0; i < ACPI_STATE_S4; i++) { + for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) { status = acpi_get_sleep_type_data(i, &type_a, &type_b); if (ACPI_SUCCESS(status)) { sleep_states[i] = 1; -- cgit v1.2.3-70-g09d2