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stm32/spi: Add spi_deinit_all function.

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SPI objects can remain active after a soft-reboot because they are
statically allocated and lack a finalizer to collect and deinitialize them.
This commit adds a `spi_deinit_all()` functions for SPI, similar to other
peripherals such as UART, DAC, etc.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
This commit is contained in:
iabdalkader
2024-12-02 08:09:25 +01:00
committed by Damien George
parent 17808e7b74
commit d42e39d87d
2 changed files with 10 additions and 0 deletions
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9
ports/stm32/spi.c
View File

@@ -545,6 +545,15 @@ void spi_deinit(const spi_t *spi_obj) {
} }
} }
void spi_deinit_all(void) {
for (int i = 0; i < MP_ARRAY_SIZE(spi_obj); i++) {
const spi_t *spi = &spi_obj[i];
if (spi->spi != NULL) {
spi_deinit(spi);
}
}
}
static HAL_StatusTypeDef spi_wait_dma_finished(const spi_t *spi, uint32_t t_start, uint32_t timeout) { static HAL_StatusTypeDef spi_wait_dma_finished(const spi_t *spi, uint32_t t_start, uint32_t timeout) {
volatile HAL_SPI_StateTypeDef *state = &spi->spi->State; volatile HAL_SPI_StateTypeDef *state = &spi->spi->State;
for (;;) { for (;;) {

1
ports/stm32/spi.h
View File

@@ -67,6 +67,7 @@ extern const mp_obj_type_t pyb_spi_type;
void spi_init0(void); void spi_init0(void);
int spi_init(const spi_t *spi, bool enable_nss_pin); int spi_init(const spi_t *spi, bool enable_nss_pin);
void spi_deinit(const spi_t *spi_obj); void spi_deinit(const spi_t *spi_obj);
void spi_deinit_all(void);
int spi_find_index(mp_obj_t id); int spi_find_index(mp_obj_t id);
void spi_set_params(const spi_t *spi_obj, uint32_t prescale, int32_t baudrate, void spi_set_params(const spi_t *spi_obj, uint32_t prescale, int32_t baudrate,
int32_t polarity, int32_t phase, int32_t bits, int32_t firstbit); int32_t polarity, int32_t phase, int32_t bits, int32_t firstbit);