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drivers: adc: shell: add differential command

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Add differential command.

Signed-off-by: Nick Ward <nix.ward@gmail.com>
This commit is contained in:
Nick Ward 2023-09-13 22:16:13 +10:00 • committed by Carles Cufí
commit 4fe5beb2c5
1 changed files with 42 additions and 0 deletions
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42
drivers/adc/adc_shell.c
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@ -28,6 +28,10 @@ LOG_MODULE_REGISTER(adc_shell);
"Configure channel id\n" \
"Usage: id <channel_id>\n"
#define CMD_HELP_DIFF \
"Configure differential\n" \
"Usage: differential <0||1>\n"
#define CMD_HELP_CH_NEG \
"Configure channel negative input\n" \
"Usage: negative <negative_input_id>\n"
@ -138,6 +142,33 @@ static int cmd_adc_ch_id(const struct shell *sh, size_t argc, char **argv)
return retval;
}
static int cmd_adc_ch_diff(const struct shell *sh, size_t argc, char **argv)
{
/* -2: index of ADC label name */
struct adc_hdl *adc = get_adc(argv[-2]);
int retval = 0;
char *endptr;
long diff;
if (!device_is_ready(adc->dev)) {
shell_error(sh, "ADC device not ready");
return -ENODEV;
}
endptr = argv[1];
diff = strtol(argv[1], &endptr, 10);
if ((endptr == argv[1]) || ((diff != 0) && (diff != 1))) {
shell_error(sh, "<differential> must be 0 or 1");
return -EINVAL;
}
adc->channel_config.differential = (uint8_t)diff;
retval = adc_channel_setup(adc->dev, &adc->channel_config);
LOG_DBG("Channel setup returned %i", retval);
return retval;
}
static int cmd_adc_ch_neg(const struct shell *sh, size_t argc, char **argv)
{
#if CONFIG_ADC_CONFIGURABLE_INPUTS
@ -339,13 +370,23 @@ static int cmd_adc_print(const struct shell *sh, size_t argc, char **argv)
"Reference: %s\n"
"Acquisition Time: %u\n"
"Channel ID: %u\n"
"Differential: %u\n"
"Resolution: %u",
adc->dev->name,
chosen_gain,
chosen_reference,
adc->channel_config.acquisition_time,
adc->channel_config.channel_id,
adc->channel_config.differential,
adc->resolution);
#if CONFIG_ADC_CONFIGURABLE_INPUTS
shell_print(sh, "Input positive: %u",
adc->channel_config.input_positive);
if (adc->channel_config.differential != 0) {
shell_print(sh, "Input negative: %u",
adc->channel_config.input_negative);
}
#endif
return 0;
}
@ -378,6 +419,7 @@ SHELL_SUBCMD_DICT_SET_CREATE(sub_gain_cmds, cmd_adc_gain,
SHELL_STATIC_SUBCMD_SET_CREATE(sub_channel_cmds,
SHELL_CMD_ARG(id, NULL, CMD_HELP_CH_ID, cmd_adc_ch_id, 2, 0),
SHELL_CMD_ARG(differential, NULL, CMD_HELP_DIFF, cmd_adc_ch_diff, 2, 0),
SHELL_COND_CMD_ARG(CONFIG_ADC_CONFIGURABLE_INPUTS,
negative, NULL, CMD_HELP_CH_NEG, cmd_adc_ch_neg, 2, 0),
SHELL_COND_CMD_ARG(CONFIG_ADC_CONFIGURABLE_INPUTS,