zephyr/subsys/logging/log_backend_uart.c

72 lines
1.4 KiB
C

/*
* Copyright (c) 2018 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <logging/log_backend.h>
#include <logging/log_core.h>
#include <logging/log_msg.h>
#include <logging/log_output.h>
#include <device.h>
#include <uart.h>
#include <assert.h>
static int char_out(u8_t *data, size_t length, void *ctx)
{
struct device *dev = (struct device *)ctx;
for (size_t i = 0; i < length; i++) {
uart_poll_out(dev, data[i]);
}
return length;
}
static u8_t buf;
LOG_OUTPUT_DEFINE(log_output, char_out, &buf, 1);
static void put(const struct log_backend *const backend,
struct log_msg *msg)
{
log_msg_get(msg);
u32_t flags = LOG_OUTPUT_FLAG_LEVEL | LOG_OUTPUT_FLAG_TIMESTAMP;
if (IS_ENABLED(CONFIG_LOG_BACKEND_SHOW_COLOR)) {
flags |= LOG_OUTPUT_FLAG_COLORS;
}
if (IS_ENABLED(CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP)) {
flags |= LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP;
}
log_output_msg_process(&log_output, msg, flags);
log_msg_put(msg);
}
static void log_backend_uart_init(void)
{
struct device *dev;
dev = device_get_binding(CONFIG_UART_CONSOLE_ON_DEV_NAME);
assert(dev);
log_output_ctx_set(&log_output, dev);
}
static void panic(struct log_backend const *const backend)
{
}
const struct log_backend_api log_backend_uart_api = {
.put = put,
.panic = panic,
.init = log_backend_uart_init,
};
LOG_BACKEND_DEFINE(log_backend_uart, log_backend_uart_api, true);