acpi: Support writing a UUID
ACPI supports writing a UUID in a special format. Add a function to handle
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/acpi/acpigen.h b/include/acpi/acpigen.h
index 24aec7f..31fa20a 100644
--- a/include/acpi/acpigen.h
+++ b/include/acpi/acpigen.h
@@ -27,6 +27,7 @@
DWORD_PREFIX = 0x0c,
STRING_PREFIX = 0x0d,
QWORD_PREFIX = 0x0e,
+ BUFFER_OP = 0x11,
PACKAGE_OP = 0x12,
DUAL_NAME_PREFIX = 0x2e,
MULTI_NAME_PREFIX = 0x2f,
@@ -190,4 +191,16 @@
* @namepath: Name / path to emit
*/
void acpigen_write_name(struct acpi_ctx *ctx, const char *namepath);
+
+/**
+ * acpigen_write_uuid() - Write a UUID
+ *
+ * This writes out a UUID in the format used by ACPI, with a BUFFER_OP prefix.
+ *
+ * @ctx: ACPI context pointer
+ * @uuid: UUID to write in the form aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
+ * @return 0 if OK, -EINVAL if the format is incorrect
+ */
+int acpigen_write_uuid(struct acpi_ctx *ctx, const char *uuid);
+
#endif