diff options
| author | Daisuke Nojiri <dnojiri@chromium.org> | 2022-04-14 17:03:20 +0000 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2022-04-18 21:19:33 +0000 |
| commit | 8ecd1a5f99e8472409cd773580f56632d8cc73f3 (patch) | |
| tree | a3b932db4fa07a165923dc40133ee63bd139fb8c /include/compile_time_macros.h | |
| parent | 13850ecd4c30a5ab0f15c62f666c4f4a7a7d27f1 (diff) | |
| download | chrome-ec-8ecd1a5f99e8472409cd773580f56632d8cc73f3.tar.gz | |
compile_time_macros: Add WRITE_BIT
WRITE_BIT macro sets a bit if a given condition is true or clears
it if not.
BUG=None
BRANCH=None
TEST=make run-compile_time_macros
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: Id3a73afbc48a49ec9df9dcf8f494974fb274b192
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3587152
Reviewed-by: Parth Malkan <parthmalkan@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-by: Bobby Casey <bobbycasey@google.com>
Reviewed-by: Craig Hesling <hesling@chromium.org>
Diffstat (limited to 'include/compile_time_macros.h')
| -rw-r--r-- | include/compile_time_macros.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/compile_time_macros.h b/include/compile_time_macros.h index 23e5d56867..afb2c30d19 100644 --- a/include/compile_time_macros.h +++ b/include/compile_time_macros.h @@ -79,6 +79,12 @@ */ #ifndef CONFIG_ZEPHYR #define BIT(nr) (1U << (nr)) +/* + * Set or clear <bit> of <var> depending on <set>. + * It also supports setting and clearing (e.g. SET_BIT, CLR_BIT) macros. + */ +#define WRITE_BIT(var, bit, set) \ + ((var) = (set) ? ((var) | BIT(bit)) : ((var) & ~BIT(bit))) #endif #define BIT_ULL(nr) (1ULL << (nr)) |