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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 <string.h>
#include "common.h"
static gchar *make_line_name(const gchar *name)
{
if (!name)
return g_strdup("unnamed");
return g_strdup_printf("\"%s\"", name);
}
static void do_print_line_info(GpiodbusObject *line_obj,
GpiodbusObject *chip_obj)
{
g_autoptr(LineProperties) props = NULL;
g_autoptr(GString) attributes = NULL;
g_autofree gchar *line_name = NULL;
GpiodbusChip *chip;
props = get_line_properties(gpiodbus_object_peek_line(line_obj));
line_name = make_line_name(props->name);
attributes = g_string_new("[");
if (props->used)
g_string_append_printf(attributes, "used,consumer=\"%s\",",
props->consumer);
if (props->managed)
g_string_append_printf(attributes, "managed=\"%s\",",
props->request_name);
if (props->edge) {
g_string_append_printf(attributes, "edges=%s,event-clock=%s,",
props->edge, props->event_clock);
if (props->debounced)
g_string_append_printf(attributes,
"debounce-period=%"G_GUINT64_FORMAT",",
props->debounce_period);
}
if (props->bias)
g_string_append_printf(attributes, "bias=%s,", props->bias);
if (props->active_low)
attributes = g_string_append(attributes, "active-low,");
g_string_append_printf(attributes, "%s", props->direction);
if (g_strcmp0(props->direction, "output") == 0)
g_string_append_printf(attributes, ",%s", props->drive);
attributes = g_string_append(attributes, "]");
if (chip_obj) {
chip = gpiodbus_object_peek_chip(chip_obj);
g_print("%s ", gpiodbus_chip_get_name(chip));
} else {
g_print("\tline ");
}
g_print("%3u:\t%s\t\t%s\n", props->offset, line_name, attributes->str);
}
static void print_line_info(gpointer elem, gpointer user_data G_GNUC_UNUSED)
{
GpiodbusObject *line_obj = elem;
do_print_line_info(line_obj, NULL);
}
static void do_show_chip(GpiodbusObject *chip_obj)
{
GpiodbusChip *chip = gpiodbus_object_peek_chip(chip_obj);
g_autolist(GpiodbusObject) line_objs = NULL;
g_print("%s - %u lines:\n",
gpiodbus_chip_get_name(chip),
gpiodbus_chip_get_num_lines(chip));
line_objs = get_all_line_objs_for_chip(chip_obj);
g_list_foreach(line_objs, print_line_info, NULL);
}
static void show_chip(gpointer elem, gpointer user_data G_GNUC_UNUSED)
{
GpiodbusObject *chip_obj = elem;
do_show_chip(chip_obj);
}
static void show_line_with_chip(gpointer elem, gpointer user_data)
{
g_autoptr(GpiodbusObject) line_obj = NULL;
GpiodbusObject *chip_obj = user_data;
g_autofree gchar *chip_name = NULL;
GString *line_name = elem;
line_obj = get_line_obj_by_name_for_chip(chip_obj, line_name->str);
if (!line_obj) {
chip_name = g_path_get_basename(
g_dbus_object_get_object_path(G_DBUS_OBJECT(chip_obj)));
die("no line '%s' on chip '%s'", line_name->str, chip_name);
}
do_print_line_info(line_obj, chip_obj);
}
static void show_line(gpointer elem, gpointer user_data G_GNUC_UNUSED)
{
g_autoptr(GpiodbusObject) line_obj = NULL;
g_autoptr(GpiodbusObject) chip_obj = NULL;
GString *line_name = elem;
gboolean ret;
ret = get_line_obj_by_name(line_name->str, &line_obj, &chip_obj);
if (!ret)
die("line '%s' not found", line_name->str);
do_print_line_info(line_obj, chip_obj);
}
int gpiocli_info_main(int argc, char **argv)
{
static const gchar *const summary =
"Print information about GPIO lines.";
static const gchar *const description =
"Lines are specified by name, or optionally by offset if the chip option\n"
"is provided.\n";
g_autolist(GpiodbusObject) chip_objs = NULL;
g_autolist(GString) line_name_list = NULL;
g_autoptr(GpiodbusObject) chip_obj = NULL;
g_auto(GStrv) line_names = NULL;
const gchar *chip_name = NULL;
const GOptionEntry opts[] = {
{
.long_name = "chip",
.short_name = 'c',
.flags = G_OPTION_FLAG_NONE,
.arg = G_OPTION_ARG_STRING,
.arg_data = &chip_name,
.description = "restrict scope to a particular chip",
.arg_description = "<chip>",
},
{
.long_name = G_OPTION_REMAINING,
.flags = G_OPTION_FLAG_NONE,
.arg = G_OPTION_ARG_STRING_ARRAY,
.arg_data = &line_names,
.arg_description = "[line1] [line2] ...",
},
{ }
};
parse_options(opts, summary, description, &argc, &argv);
check_manager();
if (chip_name)
chip_obj = get_chip_obj(chip_name);
if (line_names) {
line_name_list = strv_to_gstring_list(line_names);
if (chip_obj)
g_list_foreach(line_name_list, show_line_with_chip,
chip_obj);
else
g_list_foreach(line_name_list, show_line, NULL);
} else if (chip_obj) {
do_show_chip(chip_obj);
} else {
chip_objs = get_chip_objs(NULL);
g_list_foreach(chip_objs, show_chip, NULL);
}
return EXIT_SUCCESS;
}
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