components/hal/spi_slave_hal.c (ESP-IDF)

#include "hal/spi_slave_hal.h" #include "hal/spi_ll.h" #include "soc/soc_caps.h" void spi_slave_hal_init(spi_slave_hal_context_t *hal, const spi_slave_hal_config_t *hal_config) { hal->hw = SPI_LL_GET_HW(hal_config->host_id); spi_ll_slave_init(hal->hw); //Force a transaction done interrupt. This interrupt won't fire yet because we initialized the SPI interrupt as //disabled. This way, we can just enable the SPI interrupt and the interrupt handler will kick in, handling //any transactions that are queued. spi_ll_set_int_stat(hal->hw); spi_ll_enable_int(hal->hw); } void spi_slave_hal_setup_device(const spi_slave_hal_context_t *hal) { spi_ll_set_rx_lsbfirst(hal->hw, hal->rx_lsbfirst); spi_ll_set_tx_lsbfirst(hal->hw, hal->tx_lsbfirst); spi_ll_slave_set_mode(hal->hw, hal->mode, hal->use_dma); } void spi_slave_hal_deinit(spi_slave_hal_context_t *hal) { }