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| author | Jack Rosenthal <jrosenth@chromium.org> | 2020-09-23 08:16:57 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-10-01 19:14:29 +0000 |
| commit | 1434fa7a1d5fed910c86f479aab75fee6521bb5d (patch) | |
| tree | 519d7c8a9fb7d4b64b0a65db3c364a1aae7816ca | |
| parent | 47548f0f7b4ad89cdeef0cb48f3adbea9d92d570 (diff) | |
| download | chrome-ec-1434fa7a1d5fed910c86f479aab75fee6521bb5d.tar.gz | |
zephyr: implement atomic.h
This implements a compatibility layer with the deprecated_* atomic
operations using Zephyr's APIs.
BUG=b:169151160
BRANCH=none
TEST=compile timer.c in follow-up CL
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I49fa1afc28790ab14a91d472141a01e2370b24ac
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2427096
Reviewed-by: Jett Rink <jettrink@chromium.org>
| -rw-r--r-- | zephyr/shim/include/atomic.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/zephyr/shim/include/atomic.h b/zephyr/shim/include/atomic.h new file mode 100644 index 0000000000..249b5d0bd9 --- /dev/null +++ b/zephyr/shim/include/atomic.h @@ -0,0 +1,45 @@ +/* Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef __CROS_EC_ATOMIC_H +#define __CROS_EC_ATOMIC_H + +#include <sys/atomic.h> + +/* + * Below EC APIs are being deprecated and replaced with the Zephyr + * APIs. We already get the Zephyr APIs from sys/atomic.h. The + * definitions here are provided so we can shim-in modules using the + * deprecated APIs while the transition is under way. + */ +static inline void deprecated_atomic_clear(uint32_t volatile *addr, + uint32_t bits) +{ + atomic_and((atomic_t *)addr, bits); +} + +static inline void deprecated_atomic_or(uint32_t volatile *addr, uint32_t bits) +{ + atomic_or((atomic_t *)addr, bits); +} + +static inline void deprecated_atomic_add(uint32_t volatile *addr, + uint32_t value) +{ + atomic_add((atomic_t *)addr, value); +} + +static inline void deprecated_atomic_sub(uint32_t volatile *addr, + uint32_t value) +{ + atomic_sub((atomic_t *)addr, value); +} + +static inline uint32_t deprecated_atomic_read_clear(uint32_t volatile *addr) +{ + return atomic_clear((atomic_t *)addr); +} + +#endif /* __CROS_EC_ATOMIC_H */ |