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// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <assert.h>
#include <gpiod.h>
#include <stdlib.h>
#include <string.h>
#include "internal.h"
struct gpiod_chip_info {
size_t num_lines;
char name[GPIO_MAX_NAME_SIZE + 1];
char label[GPIO_MAX_NAME_SIZE + 1];
};
GPIOD_API void gpiod_chip_info_free(struct gpiod_chip_info *info)
{
free(info);
}
GPIOD_API const char *gpiod_chip_info_get_name(struct gpiod_chip_info *info)
{
assert(info);
return info->name;
}
GPIOD_API const char *gpiod_chip_info_get_label(struct gpiod_chip_info *info)
{
assert(info);
return info->label;
}
GPIOD_API size_t gpiod_chip_info_get_num_lines(struct gpiod_chip_info *info)
{
assert(info);
return info->num_lines;
}
struct gpiod_chip_info *
gpiod_chip_info_from_uapi(struct gpiochip_info *uapi_info)
{
struct gpiod_chip_info *info;
info = malloc(sizeof(*info));
if (!info)
return NULL;
memset(info, 0, sizeof(*info));
info->num_lines = uapi_info->lines;
/*
* GPIO device must have a name - don't bother checking this field. In
* the worst case (would have to be a weird kernel bug) it'll be empty.
*/
strncpy(info->name, uapi_info->name, sizeof(info->name));
/*
* The kernel sets the label of a GPIO device to "unknown" if it
* hasn't been defined in DT, board file etc. On the off-chance that
* we got an empty string, do the same.
*/
if (uapi_info->label[0] == '\0')
strncpy(info->label, "unknown", sizeof(info->label));
else
strncpy(info->label, uapi_info->label, sizeof(info->label));
return info;
}
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