77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
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/*
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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_remote
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#include <zephyr/devicetree.h>
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#include <zephyr/drivers/mbox.h>
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#include <haly/nrfy_vpr.h>
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struct mbox_vevif_remote_conf {
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NRF_VPR_Type *vpr;
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uint32_t tasks_mask;
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uint8_t tasks;
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};
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static inline bool vevif_remote_is_task_valid(const struct device *dev, uint32_t id)
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{
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const struct mbox_vevif_remote_conf *config = dev->config;
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return (id < config->tasks) && ((config->tasks_mask & BIT(id)) != 0U);
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}
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static int vevif_remote_send(const struct device *dev, uint32_t id, const struct mbox_msg *msg)
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{
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const struct mbox_vevif_remote_conf *config = dev->config;
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if (!vevif_remote_is_task_valid(dev, id)) {
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return -EINVAL;
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}
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if (msg != NULL) {
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return -ENOTSUP;
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}
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nrfy_vpr_task_trigger(config->vpr, nrfy_vpr_trigger_task_get(id));
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return 0;
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}
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static int vevif_remote_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_remote_max_channels_get(const struct device *dev)
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{
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const struct mbox_vevif_remote_conf *config = dev->config;
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return config->tasks;
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}
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static const struct mbox_driver_api vevif_remote_driver_api = {
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.send = vevif_remote_send,
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.mtu_get = vevif_remote_mtu_get,
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.max_channels_get = vevif_remote_max_channels_get,
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};
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#define VEVIF_REMOTE_DEFINE(inst) \
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BUILD_ASSERT(DT_INST_PROP(inst, nordic_tasks) <= VPR_TASKS_TRIGGER_MaxCount, \
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"Number of tasks exceeds maximum"); \
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\
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static const struct mbox_vevif_remote_conf conf##inst = { \
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.vpr = (NRF_VPR_Type *)DT_INST_REG_ADDR(inst), \
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.tasks = DT_INST_PROP(inst, nordic_tasks), \
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.tasks_mask = DT_INST_PROP(inst, nordic_tasks_mask), \
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}; \
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\
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DEVICE_DT_INST_DEFINE(inst, NULL, NULL, NULL, &conf##inst, POST_KERNEL, \
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CONFIG_MBOX_INIT_PRIORITY, &vevif_remote_driver_api);
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DT_INST_FOREACH_STATUS_OKAY(VEVIF_REMOTE_DEFINE)
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