132 lines
3.4 KiB
C
132 lines
3.4 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 <logging/log_backend.h>
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#include <logging/log_backend_std.h>
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#include <logging/log_output.h>
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#include <openthread/platform/logging.h>
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#include <openthread/platform/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 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 put(const struct log_backend *const backend,
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struct log_msg *msg)
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{
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/* prevent adding CRLF, which may crash spinel decoding */
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uint32_t flag = LOG_OUTPUT_FLAG_CRLF_NONE;
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last_log_level = msg->hdr.ids.level;
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log_backend_std_put(&log_output_spinel, flag, msg);
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}
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static void sync_string(const struct log_backend *const backend,
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struct log_msg_ids src_level, uint32_t timestamp,
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const char *fmt, va_list ap)
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{
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/* prevent adding CRLF, which may crash spinel decoding */
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uint32_t flag = LOG_OUTPUT_FLAG_CRLF_NONE;
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log_backend_std_sync_string(&log_output_spinel, flag, src_level,
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timestamp, fmt, ap);
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}
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static void sync_hexdump(const struct log_backend *const backend,
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struct log_msg_ids src_level, uint32_t timestamp,
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const char *metadata, const uint8_t *data,
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uint32_t length)
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{
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/* prevent adding CRLF, which may crash spinel decoding */
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uint32_t flag = LOG_OUTPUT_FLAG_CRLF_NONE;
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log_backend_std_sync_hexdump(&log_output_spinel, flag, src_level,
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timestamp, metadata, data, length);
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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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.put = IS_ENABLED(CONFIG_LOG_IMMEDIATE) ? NULL : put,
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.put_sync_string = IS_ENABLED(CONFIG_LOG_IMMEDIATE) ?
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sync_string : NULL,
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.put_sync_hexdump = IS_ENABLED(CONFIG_LOG_IMMEDIATE) ?
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sync_hexdump : NULL,
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.panic = panic,
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.init = log_backend_spinel_init,
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.dropped = IS_ENABLED(CONFIG_LOG_IMMEDIATE) ? NULL : dropped,
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};
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LOG_BACKEND_DEFINE(log_backend_spinel, log_backend_spinel_api, true);
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