drashna/qmk_firmware
1
0
Fork 0
Code Activity Actions

[Core] Use a mutex guard for split shared memory (#16647)

Browse source
This commit is contained in:
Stefan Kerkmann 2022-04-19 12:56:16 +02:00 • committed by GitHub
parent 176ab14649
commit 7712a286dc
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 82 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

10
platforms/chibios/drivers/serial_usart.c
View file

@ -15,6 +15,7 @@
*/
#include "serial_usart.h"
#include "synchronization_util.h"
#if defined(SERIAL_USART_CONFIG)
static SerialConfig serial_config = SERIAL_USART_CONFIG;
@ -173,6 +174,7 @@ static THD_FUNCTION(SlaveThread, arg) {
* Parts of failed transactions or spurious bytes could still be in it. */
usart_clear();
}
split_shared_memory_unlock();
}
}
@ -200,6 +202,7 @@ static inline bool react_to_transactions(void) {
return false;
}
split_shared_memory_lock();
split_transaction_desc_t* trans = &split_transaction_table[sstd_index];
/* Send back the handshake which is XORed as a simple checksum,
@ -254,7 +257,12 @@ bool soft_serial_transaction(int index) {
/* Clear the receive queue, to start with a clean slate.
* Parts of failed transactions or spurious bytes could still be in it. */
usart_clear();
return initiate_transaction((uint8_t)index);
split_shared_memory_lock();
bool result = initiate_transaction((uint8_t)index);
split_shared_memory_unlock();
return result;
}
/**