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drivers: rtc: rtc_shell: add calibration support

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Add `get_calibration` and `set_calibration` subcommands to allow users
to read and modify the RTC calibration settings from the shell.

Signed-off-by: Tim Pambor <tim.pambor@codewrights.de>
This commit is contained in:
Tim Pambor
2025-12-03 17:03:34 +01:00
committed by Anas Nashif
parent ae2c244486
commit 373d92ae73
1 changed files with 68 additions and 0 deletions
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68
drivers/rtc/rtc_shell.c
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@@ -217,6 +217,65 @@ static int cmd_get(const struct shell *sh, size_t argc, char **argv)
return 0;
}
#ifdef CONFIG_RTC_CALIBRATION
static int cmd_get_calibration(const struct shell *sh, size_t argc, char **argv)
{
int res;
int32_t calibration_ppb;
const struct device *dev = shell_device_get_binding(argv[1]);
if (!device_is_ready(dev)) {
shell_error(sh, "device %s not ready", argv[1]);
return -ENODEV;
}
res = rtc_get_calibration(dev, &calibration_ppb);
if (-ENOTSUP == res) {
shell_error(sh, "Calibration not supported");
return 0;
}
if (res < 0) {
shell_error(sh, "Error getting calibration: %d", res);
return res;
}
shell_print(sh, "%dppb", calibration_ppb);
return 0;
}
static int cmd_set_calibration(const struct shell *sh, size_t argc, char **argv)
{
int res;
char *endptr;
int32_t calibration_ppb;
const struct device *dev = shell_device_get_binding(argv[1]);
if (!device_is_ready(dev)) {
shell_error(sh, "device %s not ready", argv[1]);
return -ENODEV;
}
calibration_ppb = strtol(argv[2], &endptr, 10);
if (*endptr != '\0') {
return -EINVAL;
}
if (calibration_ppb > 1000000 || calibration_ppb < -1000000) {
return -EINVAL;
}
res = rtc_set_calibration(dev, calibration_ppb);
if (-ENOTSUP == res) {
shell_error(sh, "Calibration not supported");
return 0;
}
if (res < 0) {
shell_error(sh, "Error setting calibration: %d", res);
}
return res;
}
#endif /* CONFIG_RTC_CALIBRATION */
static bool device_is_rtc(const struct device *dev)
{
return DEVICE_API_IS(rtc, dev);
@@ -240,12 +299,21 @@ static void device_name_get(size_t idx, struct shell_static_entry *entry)
SHELL_HELP("Set UTC time", \
"<device> <YYYY-MM-DDThh:mm:ss> | <YYYY-MM-DD> | <hh:mm:ss>")
#define RTC_GET_CALIBRATION_HELP SHELL_HELP("Get calibration", "<device>")
#define RTC_SET_CALIBRATION_HELP SHELL_HELP("Set calibration", "<device> <ppb>")
SHELL_DYNAMIC_CMD_CREATE(dsub_device_name, device_name_get);
SHELL_STATIC_SUBCMD_SET_CREATE(sub_rtc,
/* Alphabetically sorted */
SHELL_CMD_ARG(set, &dsub_device_name, RTC_SET_HELP, cmd_set, 3, 0),
SHELL_CMD_ARG(get, &dsub_device_name, RTC_GET_HELP, cmd_get, 2, 0),
#ifdef CONFIG_RTC_CALIBRATION
SHELL_CMD_ARG(get_calibration, &dsub_device_name,
RTC_GET_CALIBRATION_HELP, cmd_get_calibration, 2, 0),
SHELL_CMD_ARG(set_calibration, &dsub_device_name,
RTC_SET_CALIBRATION_HELP, cmd_set_calibration, 3, 0),
#endif /* CONFIG_RTC_CALIBRATION */
SHELL_SUBCMD_SET_END);
SHELL_CMD_REGISTER(rtc, &sub_rtc, "RTC commands", NULL);