113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* Copyright (c) 2020 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 <zephyr/logging/log_backend.h>
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#include <zephyr/logging/log_backend_std.h>
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#include <zephyr/logging/log_output.h>
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#include <openthread/platform/logging.h>
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#include <utils/uart.h>
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#include <platform-zephyr.h>
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#ifndef CONFIG_LOG_BACKEND_SPINEL_BUFFER_SIZE
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#define CONFIG_LOG_BACKEND_SPINEL_BUFFER_SIZE 0
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#endif
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static uint8_t char_buf[CONFIG_LOG_BACKEND_SPINEL_BUFFER_SIZE];
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static bool panic_mode;
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static uint16_t last_log_level;
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static uint32_t log_format_current = CONFIG_LOG_BACKEND_SPINEL_OUTPUT_DEFAULT;
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static int write(uint8_t *data, size_t length, void *ctx);
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LOG_OUTPUT_DEFINE(log_output_spinel, write, char_buf, sizeof(char_buf));
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static inline bool is_panic_mode(void)
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{
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return panic_mode;
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}
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static void process(const struct log_backend *const backend,
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union log_msg_generic *msg)
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{
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/* prevent adding CRLF, which may crash spinel decoding */
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uint32_t flags = LOG_OUTPUT_FLAG_CRLF_NONE | log_backend_std_get_flags();
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log_format_func_t log_output_func = log_format_func_t_get(log_format_current);
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log_output_func(&log_output_spinel, &msg->log, flags);
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}
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static int format_set(const struct log_backend *const backend, uint32_t log_type)
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{
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log_format_current = log_type;
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return 0;
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}
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static void log_backend_spinel_init(struct log_backend const *const backend)
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{
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memset(char_buf, '\0', sizeof(char_buf));
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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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ARG_UNUSED(backend);
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panic_mode = true;
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}
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static void dropped(const struct log_backend *const backend, uint32_t cnt)
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{
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ARG_UNUSED(backend);
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log_backend_std_dropped(&log_output_spinel, cnt);
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}
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static int write(uint8_t *data, size_t length, void *ctx)
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{
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otLogLevel log_level;
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if (is_panic_mode()) {
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/* In panic mode otPlatLog implemented for Spinel protocol
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* cannot be used, because it cannot be called from interrupt.
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* In such situation raw data bytes without encoding are send.
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*/
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platformUartPanic();
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otPlatUartSend(data, length);
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} else {
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switch (last_log_level) {
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case LOG_LEVEL_ERR:
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log_level = OT_LOG_LEVEL_CRIT;
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break;
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case LOG_LEVEL_WRN:
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log_level = OT_LOG_LEVEL_WARN;
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break;
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case LOG_LEVEL_INF:
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log_level = OT_LOG_LEVEL_INFO;
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break;
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case LOG_LEVEL_DBG:
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log_level = OT_LOG_LEVEL_DEBG;
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break;
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default:
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log_level = OT_LOG_LEVEL_NONE;
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break;
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}
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otPlatLog(log_level, OT_LOG_REGION_PLATFORM, "%s", data);
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}
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/* make sure that buffer will be clean in next attempt */
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memset(char_buf, '\0', length);
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return length;
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}
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const struct log_backend_api log_backend_spinel_api = {
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.process = process,
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.panic = panic,
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.init = log_backend_spinel_init,
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.dropped = IS_ENABLED(CONFIG_LOG_MODE_IMMEDIATE) ? NULL : dropped,
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.format_set = format_set,
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};
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LOG_BACKEND_DEFINE(log_backend_spinel, log_backend_spinel_api, true);
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