Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Add bus acquire/release semantics to SPI start/stop. #23439

Merged
merged 1 commit into from
Jul 17, 2024
Merged

Add bus acquire/release semantics to SPI start/stop. #23439

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions platforms/chibios/drivers/spi_master.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -64,9 +64,14 @@ __attribute__((weak)) void spi_init(void) {
}

bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
#if (SPI_USE_MUTUAL_EXCLUSION == TRUE)
spiAcquireBus(&SPI_DRIVER);
#endif // (SPI_USE_MUTUAL_EXCLUSION == TRUE)

if (spiStarted) {
return false;
}

#if SPI_SELECT_MODE != SPI_SELECT_MODE_NONE
if (slavePin == NO_PIN) {
return false;
Expand Down Expand Up @@ -326,4 +331,8 @@ void spi_stop(void) {
spiStop(&SPI_DRIVER);
spiStarted = false;
}

#if (SPI_USE_MUTUAL_EXCLUSION == TRUE)
spiReleaseBus(&SPI_DRIVER);
#endif // (SPI_USE_MUTUAL_EXCLUSION == TRUE)
}
Loading