diff options
Diffstat (limited to 'include/acpi/acpi_bus.h')
| -rw-r--r-- | include/acpi/acpi_bus.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index e4ab7be65637..8256eb4ad057 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -64,6 +64,32 @@ bool acpi_ata_match(acpi_handle handle); bool acpi_bay_match(acpi_handle handle); bool acpi_dock_match(acpi_handle handle); +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); +union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, + int rev, int func, union acpi_object *argv4); + +static inline union acpi_object * +acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, + union acpi_object *argv4, acpi_object_type type) +{ + union acpi_object *obj; + + obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); + if (obj && obj->type != type) { + ACPI_FREE(obj); + obj = NULL; + } + + return obj; +} + +#define ACPI_INIT_DSM_ARGV4(cnt, eles) \ + { \ + .package.type = ACPI_TYPE_PACKAGE, \ + .package.count = (cnt), \ + .package.elements = (eles) \ + } + #ifdef CONFIG_ACPI #include <linux/proc_fs.h> |