[PATCH v4 05/35] acpi: Support generation of ACPI code

[Bin Meng]

On Wed, Jul 8, 2020 at 3:12 AM Simon Glass <sjg at chromium.org> wrote:
>
> Add a new file to handle generating ACPI code programatically. This is
> used when information must be dynamically added to the tables, e.g. the
> SSDT.
>
> Initial support is just for writing simple values. Also add a 'base' value
> so that the table can be freed. This likely doesn't happen in normal code,
> but is nice to do in tests.
>
> Reviewed-by: Wolfgang Wallner <wolfgang.wallner at br-automation.com>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v4:
> - Setup ctx->base as well as ctx->current in acpi_setup_base_tables()
> - Add a comment about little-endian in acpigen_emit_dword()
> - Add a #define for the context size in alloc_context()
>
> Changes in v2:
> - Update to add a new 'base' field to struct acpi_ctx
> - Free the memory allocated to the table and context
>
>  include/acpi/acpigen.h | 49 ++++++++++++++++++++++++++++
>  include/dm/acpi.h      |  2 ++
>  lib/acpi/Makefile      |  1 +
>  lib/acpi/acpi_table.c  |  1 +
>  lib/acpi/acpigen.c     | 39 +++++++++++++++++++++++
>  test/dm/Makefile       |  1 +
>  test/dm/acpigen.c      | 72 ++++++++++++++++++++++++++++++++++++++++++
>  7 files changed, 165 insertions(+)
>  create mode 100644 include/acpi/acpigen.h
>  create mode 100644 lib/acpi/acpigen.c
>  create mode 100644 test/dm/acpigen.c
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>