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https://github.com/zephyrproject-rtos/zephyr
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841e852513
Pend until requested event is set before clearing it. Without that check event could be cleared too early and APP core is not waken up. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* Copyright (c) 2024 Nordic Semiconductor ASA
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT nordic_nrf_vevif_event_tx
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#include <zephyr/devicetree.h>
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#include <zephyr/drivers/mbox.h>
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#include <hal/nrf_vpr.h>
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#include <hal/nrf_vpr_csr.h>
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#include <hal/nrf_vpr_csr_vevif.h>
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#define EVENTS_IDX_MAX NRF_VPR_EVENTS_TRIGGERED_MAX
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#define VEVIF_EVENTS_NUM DT_INST_PROP(0, nordic_events)
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#define VEVIF_EVENTS_MASK DT_INST_PROP(0, nordic_events_mask)
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BUILD_ASSERT(DT_INST_PROP(0, nordic_events) <= NRF_VPR_EVENTS_TRIGGERED_COUNT,
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"Number of events exceeds maximum");
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static inline bool vevif_event_tx_is_valid(uint32_t id)
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{
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return (id < EVENTS_IDX_MAX) && ((VEVIF_EVENTS_MASK & BIT(id)) != 0U);
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}
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static int vevif_event_tx_send(const struct device *dev, uint32_t id, const struct mbox_msg *msg)
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{
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ARG_UNUSED(dev);
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if (!vevif_event_tx_is_valid(id)) {
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return -EINVAL;
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}
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if (msg != NULL) {
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return -EMSGSIZE;
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}
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nrf_vpr_csr_vevif_events_trigger(BIT(id));
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#if defined(CONFIG_MBOX_NRF_VEVIF_EVENT_USE_54L_ERRATA_16)
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while (!(nrf_vpr_csr_vevif_events_get() & BIT(id))) {
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;
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}
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nrf_vpr_csr_vevif_events_set(0);
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#endif
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return 0;
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}
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static int vevif_event_tx_mtu_get(const struct device *dev)
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{
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ARG_UNUSED(dev);
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return 0;
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}
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static uint32_t vevif_event_tx_max_channels_get(const struct device *dev)
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{
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ARG_UNUSED(dev);
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return VEVIF_EVENTS_NUM;
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}
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static DEVICE_API(mbox, vevif_event_tx_driver_api) = {
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.send = vevif_event_tx_send,
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.mtu_get = vevif_event_tx_mtu_get,
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.max_channels_get = vevif_event_tx_max_channels_get,
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};
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DEVICE_DT_INST_DEFINE(0, NULL, NULL, NULL, NULL, POST_KERNEL, CONFIG_MBOX_INIT_PRIORITY,
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&vevif_event_tx_driver_api);
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