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author | Drashna Jael're <drashna@live.com> | 2022-05-29 15:38:33 -0700 |
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committer | Drashna Jael're <drashna@live.com> | 2022-05-29 15:38:33 -0700 |
commit | 30aac80d5a6d8c6f7c06efb49189d748e70edc4a (patch) | |
tree | ceb11968ae41228e4b110c07467cdca7cc9cff22 /platforms/chibios/synchronization_util.c | |
parent | 67f4e5f34489abf986dedb4984b256692086c615 (diff) | |
parent | e22a183329fd05d39f88bb9dfebe98cfa7cd8402 (diff) |
Merge remote-tracking branch 'qmk 0.17.0' into firmware21
Diffstat (limited to 'platforms/chibios/synchronization_util.c')
-rw-r--r-- | platforms/chibios/synchronization_util.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/platforms/chibios/synchronization_util.c b/platforms/chibios/synchronization_util.c new file mode 100644 index 0000000000..bc4a4e621f --- /dev/null +++ b/platforms/chibios/synchronization_util.c @@ -0,0 +1,26 @@ +// Copyright 2022 Stefan Kerkmann +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "synchronization_util.h" +#include "ch.h" + +#if defined(SPLIT_KEYBOARD) +static MUTEX_DECL(SPLIT_SHARED_MEMORY_MUTEX); + +/** + * @brief Acquire exclusive access to the split keyboard shared memory, by + * locking the mutex guarding it. If the mutex is already held, the calling + * thread will be suspended until the mutex currently owning thread releases the + * mutex again. + */ +void split_shared_memory_lock(void) { + chMtxLock(&SPLIT_SHARED_MEMORY_MUTEX); +} + +/** + * @brief Release the split shared memory mutex that has been acquired before. + */ +void split_shared_memory_unlock(void) { + chMtxUnlock(&SPLIT_SHARED_MEMORY_MUTEX); +} +#endif |