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[PULL,62/96] acpi: add aml_if() term

Message ID 1424295164-4774-63-git-send-email-mst@redhat.com
State New
Headers show

Commit Message

Michael S. Tsirkin Feb. 18, 2015, 9:50 p.m. UTC 
From: Igor Mammedov <imammedo@redhat.com>

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/hw/acpi/aml-build.h | 1 +
 hw/acpi/aml-build.c         | 8 ++++++++
 2 files changed, 9 insertions(+)
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Patch

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 97e210a..13cc9e9 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -63,6 +63,7 @@  void aml_append(Aml *parent_ctx, Aml *child);
 Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
 Aml *aml_device(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
 Aml *aml_method(const char *name, int arg_count);
+Aml *aml_if(Aml *predicate);
 
 /* other helpers */
 GArray *build_alloc_array(void);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 4e0685e..d19d1fb 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -356,6 +356,14 @@  Aml *aml_scope(const char *name_format, ...)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
+Aml *aml_if(Aml *predicate)
+{
+    Aml *var = aml_bundle(0xA0 /* IfOp */, AML_PACKAGE);
+    aml_append(var, predicate);
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */
 Aml *aml_method(const char *name, int arg_count)
 {