diff options
| author | Simon Glass <sjg@chromium.org> | 2020-07-07 13:11:55 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | 29df845204e6b67583491b3c9883432c3a74d923 (patch) | |
| tree | c980614d634f18b49ee01342b2d3cf7a23e2a324 /include/acpi | |
| parent | 7aed90d44c07ff4ea2f05e7a7b167040fe99f64f (diff) | |
| download | u-boot-29df845204e6b67583491b3c9883432c3a74d923.tar.gz | |
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>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acpigen.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/acpi/acpigen.h b/include/acpi/acpigen.h index 24aec7fad6..31fa20a806 100644 --- a/include/acpi/acpigen.h +++ b/include/acpi/acpigen.h @@ -27,6 +27,7 @@ enum { 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 @@ void acpigen_emit_namestring(struct acpi_ctx *ctx, const char *namepath); * @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 |