/**@brief Function for executing the state entry action. */ static void spis_state_entry_action_execute(NRF_SPIS_Type * p_spis, spis_cb_t * p_cb) { nrf_drv_spis_event_t event; switch (p_cb->spi_state) { case SPIS_BUFFER_RESOURCE_REQUESTED: nrf_spis_task_trigger(p_spis, NRF_SPIS_TASK_ACQUIRE); break; case SPIS_BUFFER_RESOURCE_CONFIGURED: event.evt_type = NRF_DRV_SPIS_BUFFERS_SET_DONE; event.rx_amount = 0; event.tx_amount = 0; APP_ERROR_CHECK_BOOL(p_cb->handler != NULL); p_cb->handler(event); break; case SPIS_XFER_COMPLETED: event.evt_type = NRF_DRV_SPIS_XFER_DONE; event.rx_amount = nrf_spis_rx_amount_get(p_spis); event.tx_amount = nrf_spis_tx_amount_get(p_spis); APP_ERROR_CHECK_BOOL(p_cb->handler != NULL); p_cb->handler(event); break; default: // No implementation required. break; } }
static void spis_irq_handler(NRF_SPIS_Type * p_spis, spis_cb_t * p_cb) { // @note: as multiple events can be pending for processing, the correct event processing order // is as follows: // - SPI semaphore acquired event. // - SPI transaction complete event. // Check for SPI semaphore acquired event. if (nrf_spis_event_check(p_spis, NRF_SPIS_EVENT_ACQUIRED)) { nrf_spis_event_clear(p_spis, NRF_SPIS_EVENT_ACQUIRED); NRF_LOG_DEBUG("SPIS: Event: %s.\r\n", (uint32_t)EVT_TO_STR(NRF_SPIS_EVENT_ACQUIRED)); switch (p_cb->spi_state) { case SPIS_BUFFER_RESOURCE_REQUESTED: nrf_spis_tx_buffer_set(p_spis, (uint8_t *)p_cb->tx_buffer, p_cb->tx_buffer_size); nrf_spis_rx_buffer_set(p_spis, (uint8_t *)p_cb->rx_buffer, p_cb->rx_buffer_size); nrf_spis_task_trigger(p_spis, NRF_SPIS_TASK_RELEASE); spis_state_change(p_spis, p_cb, SPIS_BUFFER_RESOURCE_CONFIGURED); break; default: // No implementation required. break; } } // Check for SPI transaction complete event. if (nrf_spis_event_check(p_spis, NRF_SPIS_EVENT_END)) { nrf_spis_event_clear(p_spis, NRF_SPIS_EVENT_END); NRF_LOG_DEBUG("SPIS: Event: %s.\r\n", (uint32_t)EVT_TO_STR(NRF_SPIS_EVENT_END)); switch (p_cb->spi_state) { case SPIS_BUFFER_RESOURCE_CONFIGURED: spis_state_change(p_spis, p_cb, SPIS_XFER_COMPLETED); break; default: // No implementation required. break; } } }
/**@brief Function for executing the state entry action. */ static void spis_state_entry_action_execute(NRF_SPIS_Type * p_spis, spis_cb_t * p_cb) { nrf_drv_spis_event_t event; switch (p_cb->spi_state) { case SPIS_BUFFER_RESOURCE_REQUESTED: nrf_spis_task_trigger(p_spis, NRF_SPIS_TASK_ACQUIRE); break; case SPIS_BUFFER_RESOURCE_CONFIGURED: event.evt_type = NRF_DRV_SPIS_BUFFERS_SET_DONE; event.rx_amount = 0; event.tx_amount = 0; APP_ERROR_CHECK_BOOL(p_cb->handler != NULL); p_cb->handler(event); break; case SPIS_XFER_COMPLETED: event.evt_type = NRF_DRV_SPIS_XFER_DONE; event.rx_amount = nrf_spis_rx_amount_get(p_spis); event.tx_amount = nrf_spis_tx_amount_get(p_spis); NRF_LOG_INFO("Transfer rx_len:%d.\r\n", event.rx_amount); NRF_LOG_DEBUG("Rx data:\r\n"); NRF_LOG_HEXDUMP_DEBUG((uint8_t *)p_cb->rx_buffer, event.rx_amount * sizeof(p_cb->rx_buffer)); APP_ERROR_CHECK_BOOL(p_cb->handler != NULL); p_cb->handler(event); break; default: // No implementation required. break; } }