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logging: rtt: add dictionary hex logging

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Adds hex dictionary logging for RTT backend

Signed-off-by: Helmut Lord <kellyhlord@gmail.com>
This commit is contained in:
Helmut Lord 2025-03-10 20:31:58 -04:00 committed by Fabio Baltieri
parent 53c5aa3bb0
commit 84163d35e6
1 changed files with 36 additions and 6 deletions
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42
subsys/logging/backends/log_backend_rtt.c
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@ -32,6 +32,10 @@
#define CONFIG_LOG_BACKEND_RTT_RETRY_CNT 10
#endif
#if defined(CONFIG_LOG_BACKEND_RTT_OUTPUT_DICTIONARY)
static const uint8_t LOG_HEX_SEP[10] = "##ZLOGV1##";
#endif
#define DROP_MAX 99
#define DROP_MSG "messages dropped: \r\n"
@ -247,12 +251,34 @@ static int data_out_overwrite_mode(uint8_t *data, size_t length, void *ctx)
return length;
}
LOG_OUTPUT_DEFINE(log_output_rtt,
IS_ENABLED(CONFIG_LOG_BACKEND_RTT_MODE_BLOCK) ?
data_out_block_mode :
IS_ENABLED(CONFIG_LOG_BACKEND_RTT_MODE_OVERWRITE) ?
data_out_overwrite_mode : data_out_drop_mode,
char_buf, sizeof(char_buf));
static const log_output_func_t logging_func =
IS_ENABLED(CONFIG_LOG_BACKEND_RTT_MODE_BLOCK) ? data_out_block_mode
: IS_ENABLED(CONFIG_LOG_BACKEND_RTT_MODE_OVERWRITE) ? data_out_overwrite_mode
: data_out_drop_mode;
static int data_out(uint8_t *data, size_t length, void *ctx)
{
#if defined(CONFIG_LOG_BACKEND_RTT_OUTPUT_DICTIONARY)
for (size_t i = 0; i < length; i++) {
char c[2];
uint8_t x[2];
/* upper 8-bit */
x[0] = data[i] >> 4;
(void)hex2char(x[0], &c[0]);
/* lower 8-bit */
x[1] = data[i] & 0x0FU;
(void)hex2char(x[1], &c[1]);
logging_func(c, sizeof(c), ctx);
}
return length;
#endif
return logging_func(data, length, ctx);
}
LOG_OUTPUT_DEFINE(log_output_rtt, data_out, char_buf, sizeof(char_buf));
static void log_backend_rtt_cfg(void)
{
@ -267,6 +293,10 @@ static void log_backend_rtt_init(struct log_backend const *const backend)
log_backend_rtt_cfg();
}
#if defined(CONFIG_LOG_BACKEND_RTT_OUTPUT_DICTIONARY)
logging_func((uint8_t *)LOG_HEX_SEP, sizeof(LOG_HEX_SEP), NULL);
#endif
host_present = true;
line_pos = line_buf;
}