include/hw/acpi/acpi_aml_interface.h

   1 #ifndef ACPI_AML_INTERFACE_H
   2 #define ACPI_AML_INTERFACE_H
   3
   4 #include "qom/object.h"
   5 #include "hw/acpi/aml-build.h"
   6
   7 #define TYPE_ACPI_DEV_AML_IF "acpi-dev-aml-interface"
   8 typedef struct AcpiDevAmlIfClass AcpiDevAmlIfClass;
   9 DECLARE_CLASS_CHECKERS(AcpiDevAmlIfClass, ACPI_DEV_AML_IF, TYPE_ACPI_DEV_AML_IF)
  10 #define ACPI_DEV_AML_IF(obj) \
  11      INTERFACE_CHECK(AcpiDevAmlIf, (obj), TYPE_ACPI_DEV_AML_IF)
  12
  13 typedef struct AcpiDevAmlIf AcpiDevAmlIf;
  14 typedef void (*dev_aml_fn)(AcpiDevAmlIf *adev, Aml *scope);
  15
  16 /**
  17  * AcpiDevAmlIfClass:
  18  *
  19  * build_dev_aml: adds device specific AML blob to provided scope
  20  *
  21  * Interface is designed for providing generic callback that builds device
  22  * specific AML blob.
  23  */
  24 struct AcpiDevAmlIfClass {
  25     /* <private> */
  26     InterfaceClass parent_class;
  27
  28     /* <public> */
  29     dev_aml_fn build_dev_aml;
  30 };
  31
  32 static inline dev_aml_fn get_dev_aml_func(DeviceState *dev)
  33 {
  34     if (object_dynamic_cast(OBJECT(dev), TYPE_ACPI_DEV_AML_IF)) {
  35         AcpiDevAmlIfClass *klass = ACPI_DEV_AML_IF_GET_CLASS(dev);
  36         return klass->build_dev_aml;
  37     }
  38     return NULL;
  39 }
  40
  41 static inline void call_dev_aml_func(DeviceState *dev, Aml *scope)
  42 {
  43     dev_aml_fn fn = get_dev_aml_func(dev);
  44     if (fn) {
  45         fn(ACPI_DEV_AML_IF(dev), scope);
  46     }
  47 }
  48
  49 #endif