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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2023 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
#include <stdlib.h>
#include "common.h"
static void find_line_in_chip(gpointer elem, gpointer user_data)
{
g_autoptr(GpiodbusObject) line_obj = NULL;
GpiodbusObject *chip_obj = elem;
const gchar *name = user_data;
GpiodbusChip *chip;
GpiodbusLine *line;
line_obj = get_line_obj_by_name_for_chip(chip_obj, name);
if (!line_obj)
return;
chip = gpiodbus_object_peek_chip(chip_obj);
line = gpiodbus_object_peek_line(line_obj);
g_print("%s %u\n",
gpiodbus_chip_get_name(chip),
gpiodbus_line_get_offset(line));
exit(EXIT_SUCCESS);
}
int gpiocli_find_main(int argc, char **argv)
{
static const gchar *const summary =
"Gicen a line name, find the name of the parent chip and offset of the line within that chip.";
static const gchar *const description =
"As line names are not guaranteed to be unique, this command finds the first line with given name.";
g_autolist(GpiodbusObject) objs = NULL;
g_auto(GStrv) line_name = NULL;
const GOptionEntry opts[] = {
{
.long_name = G_OPTION_REMAINING,
.flags = G_OPTION_FLAG_NONE,
.arg = G_OPTION_ARG_STRING_ARRAY,
.arg_data = &line_name,
.arg_description = "<line name>",
},
{ }
};
parse_options(opts, summary, description, &argc, &argv);
check_manager();
if (!line_name)
die_parsing_opts("line name must be specified");
if (g_strv_length(line_name) != 1)
die_parsing_opts("only one line can be mapped");
objs = get_chip_objs(NULL);
g_list_foreach(objs, find_line_in_chip, line_name[0]);
/* If we got here, the line was not found. */
die("line '%s' not found", line_name[0]);
return EXIT_FAILURE;
}
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