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https://github.com/zephyrproject-rtos/zephyr
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bbeef4155c
Adding new implementation of logging subsystem. New features includes: support for multiple backends, improving performance by deferring log processing to the known context, adding timestamps and logs filtering options (compile time, runtime, module level, instance level). Console backend added as the example backend. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
/*
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* Copyright (c) 2018 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <logging/log_backend_uart.h>
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#include <logging/log_core.h>
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#include <logging/log_msg.h>
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#include <logging/log_output.h>
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#include <device.h>
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#include <uart.h>
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int char_out(u8_t *data, size_t length, void *ctx)
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{
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struct device *dev = (struct device *)ctx;
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for (size_t i = 0; i < length; i++) {
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uart_poll_out(dev, data[i]);
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}
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return length;
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}
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static u8_t buf;
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static struct log_output_ctx ctx = {
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.func = char_out,
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.data = &buf,
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.length = 1,
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.offset = 0
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};
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static void put(const struct log_backend *const backend,
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struct log_msg *msg)
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{
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log_msg_get(msg);
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u32_t flags = 0;
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if (IS_ENABLED(CONFIG_LOG_BACKEND_UART_SHOW_COLOR)) {
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flags |= LOG_OUTPUT_FLAG_COLORS;
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}
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if (IS_ENABLED(CONFIG_LOG_BACKEND_UART_FORMAT_TIMESTAMP)) {
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flags |= LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP;
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}
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log_output_msg_process(msg, &ctx, flags);
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log_msg_put(msg);
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}
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void log_backend_uart_init(void)
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{
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ctx.ctx = device_get_binding(CONFIG_UART_CONSOLE_ON_DEV_NAME);
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}
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static void panic(struct log_backend const *const backend)
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{
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}
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const struct log_backend_api log_backend_uart_api = {
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.put = put,
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.panic = panic,
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};
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