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author | Simon Glass <sjg@chromium.org> | 2021-12-01 19:02:51 +0300 |
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committer | Simon Glass <sjg@chromium.org> | 2022-01-25 21:44:36 +0300 |
commit | a53d38f80a1b7833a7efad6412fbd0b17cc33a99 (patch) | |
tree | 85eff932833cf3db206f243458ef1530d80d427c /lib/acpi/facs.c | |
parent | 94ba15a3f13ff5b510d426d13854014bb9cb4713 (diff) | |
download | u-boot-a53d38f80a1b7833a7efad6412fbd0b17cc33a99.tar.xz |
x86: Move FACS table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.
Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'lib/acpi/facs.c')
-rw-r--r-- | lib/acpi/facs.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/acpi/facs.c b/lib/acpi/facs.c new file mode 100644 index 0000000000..8a1568fbaa --- /dev/null +++ b/lib/acpi/facs.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Write an ACPI Firmware ACPI Control Structure (FACS) table + * + * Copyright 2021 Google LLC + */ + +#include <common.h> +#include <acpi/acpi_table.h> +#include <dm/acpi.h> + +int acpi_write_facs(struct acpi_ctx *ctx, const struct acpi_writer *entry) +{ + struct acpi_facs *facs = ctx->current; + + memset((void *)facs, '\0', sizeof(struct acpi_facs)); + + memcpy(facs->signature, "FACS", 4); + facs->length = sizeof(struct acpi_facs); + facs->hardware_signature = 0; + facs->firmware_waking_vector = 0; + facs->global_lock = 0; + facs->flags = 0; + facs->x_firmware_waking_vector_l = 0; + facs->x_firmware_waking_vector_h = 0; + facs->version = 1; + + ctx->facs = facs; + acpi_inc(ctx, sizeof(struct acpi_facs)); + + return 0; +} +ACPI_WRITER(1facs, "FACS", acpi_write_facs, 0); |