63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* Copyright (c) 2023 Trackunit Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "modem_backend_uart_isr.h"
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#include "modem_backend_uart_async.h"
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#include <zephyr/modem/backend/uart.h>
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#include <string.h>
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static void modem_backend_uart_receive_ready_handler(struct k_work *item)
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{
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struct modem_backend_uart *backend = CONTAINER_OF(
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k_work_delayable_from_work(item), struct modem_backend_uart, receive_ready_work);
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modem_pipe_notify_receive_ready(&backend->pipe);
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}
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static void modem_backend_uart_transmit_idle_handler(struct k_work *item)
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{
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struct modem_backend_uart *backend =
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CONTAINER_OF(item, struct modem_backend_uart, transmit_idle_work);
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modem_pipe_notify_transmit_idle(&backend->pipe);
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}
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struct modem_pipe *modem_backend_uart_init(struct modem_backend_uart *backend,
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const struct modem_backend_uart_config *config)
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{
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__ASSERT_NO_MSG(config->uart != NULL);
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__ASSERT_NO_MSG(config->receive_buf != NULL);
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__ASSERT_NO_MSG(config->receive_buf_size > 1);
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__ASSERT_NO_MSG((config->receive_buf_size % 2) == 0);
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__ASSERT_NO_MSG(config->transmit_buf != NULL);
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__ASSERT_NO_MSG(config->transmit_buf_size > 0);
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memset(backend, 0x00, sizeof(*backend));
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backend->uart = config->uart;
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k_work_init_delayable(&backend->receive_ready_work,
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modem_backend_uart_receive_ready_handler);
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k_work_init(&backend->transmit_idle_work, modem_backend_uart_transmit_idle_handler);
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#ifdef CONFIG_MODEM_BACKEND_UART_ASYNC
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if (modem_backend_uart_async_is_supported(backend)) {
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modem_backend_uart_async_init(backend, config);
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return &backend->pipe;
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}
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#endif /* CONFIG_MODEM_BACKEND_UART_ASYNC */
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#ifdef CONFIG_MODEM_BACKEND_UART_ISR
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modem_backend_uart_isr_init(backend, config);
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return &backend->pipe;
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#endif /* CONFIG_MODEM_BACKEND_UART_ISR */
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__ASSERT(0, "No supported UART API");
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return NULL;
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}
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