diff options
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 1b4cf984b081..ce3c0a2cbac4 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -31,6 +31,7 @@ #include <linux/pm.h> #include <linux/device.h> #include <linux/proc_fs.h> +#include <linux/acpi.h> #ifdef CONFIG_X86 #include <asm/mpspec.h> #endif @@ -39,9 +40,6 @@ #define _COMPONENT ACPI_BUS_COMPONENT ACPI_MODULE_NAME("bus"); -#ifdef CONFIG_X86 -extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger); -#endif struct acpi_device *acpi_root; struct proc_dir_entry *acpi_root_dir; @@ -122,6 +120,31 @@ int acpi_bus_get_status(struct acpi_device *device) EXPORT_SYMBOL(acpi_bus_get_status); +void acpi_bus_private_data_handler(acpi_handle handle, + u32 function, void *context) +{ + return; +} +EXPORT_SYMBOL(acpi_bus_private_data_handler); + +int acpi_bus_get_private_data(acpi_handle handle, void **data) +{ + acpi_status status = AE_OK; + + if (!*data) + return -EINVAL; + + status = acpi_get_data(handle, acpi_bus_private_data_handler, data); + if (ACPI_FAILURE(status) || !*data) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", + handle)); + return -ENODEV; + } + + return 0; +} +EXPORT_SYMBOL(acpi_bus_get_private_data); + /* -------------------------------------------------------------------------- Power Management -------------------------------------------------------------------------- */ @@ -366,7 +389,6 @@ int acpi_bus_receive_event(struct acpi_bus_event *event) return 0; } -EXPORT_SYMBOL(acpi_bus_receive_event); #endif /* CONFIG_ACPI_PROC_EVENT */ /* -------------------------------------------------------------------------- @@ -629,8 +651,6 @@ void __init acpi_early_init(void) #ifdef CONFIG_X86 if (!acpi_ioapic) { - extern u8 acpi_sci_flags; - /* compatible (0) means level (3) */ if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) { acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK; @@ -640,7 +660,6 @@ void __init acpi_early_init(void) acpi_pic_sci_set_trigger(acpi_gbl_FADT.sci_interrupt, (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2); } else { - extern int acpi_sci_override_gsi; /* * now that acpi_gbl_FADT is initialized, * update it with result from INT_SRC_OVR parsing |