mirror of
https://github.com/zephyrproject-rtos/zephyr
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5f6070e2f7
Extended macro to accept flag indicating if given backend must be initialized and enabled when log subsystem starts. Typically, simple backends will have autostart flag set. More complex may require explicit enabling (e.g. shell over BLE can only be enabled when BLE connection is established). Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
72 lines
1.4 KiB
C
72 lines
1.4 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.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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#include <assert.h>
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static 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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LOG_OUTPUT_DEFINE(log_output, char_out, &buf, 1);
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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 = LOG_OUTPUT_FLAG_LEVEL | LOG_OUTPUT_FLAG_TIMESTAMP;
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if (IS_ENABLED(CONFIG_LOG_BACKEND_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_FORMAT_TIMESTAMP)) {
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flags |= LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP;
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}
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log_output_msg_process(&log_output, msg, flags);
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log_msg_put(msg);
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}
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static void log_backend_uart_init(void)
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{
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struct device *dev;
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dev = device_get_binding(CONFIG_UART_CONSOLE_ON_DEV_NAME);
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assert(dev);
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log_output_ctx_set(&log_output, dev);
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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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.init = log_backend_uart_init,
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};
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LOG_BACKEND_DEFINE(log_backend_uart, log_backend_uart_api, true);
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