// SPDX-License-Identifier: GPL-2.0
/* kvaser_usb devlink functions
 *
 * Copyright (C) 2025 KVASER AB, Sweden. All rights reserved.
 */
#include "kvaser_usb.h"

#include <linux/netdevice.h>
#include <net/devlink.h>

#define KVASER_USB_EAN_MSB 0x00073301

static int kvaser_usb_devlink_info_get(struct devlink *devlink,
                                       struct devlink_info_req *req,
                                       struct netlink_ext_ack *extack)
{
        struct kvaser_usb *dev = devlink_priv(devlink);
        char buf[] = "73301XXXXXXXXXX";
        int ret;

        if (dev->serial_number) {
                snprintf(buf, sizeof(buf), "%u", dev->serial_number);
                ret = devlink_info_serial_number_put(req, buf);
                if (ret)
                        return ret;
        }

        if (dev->fw_version.major) {
                snprintf(buf, sizeof(buf), "%u.%u.%u",
                         dev->fw_version.major,
                         dev->fw_version.minor,
                         dev->fw_version.build);
                ret = devlink_info_version_running_put(req,
                                                       DEVLINK_INFO_VERSION_GENERIC_FW,
                                                       buf);
                if (ret)
                        return ret;
        }

        if (dev->hw_revision) {
                snprintf(buf, sizeof(buf), "%u", dev->hw_revision);
                ret = devlink_info_version_fixed_put(req,
                                                     DEVLINK_INFO_VERSION_GENERIC_BOARD_REV,
                                                     buf);
                if (ret)
                        return ret;
        }

        if (dev->ean[1] == KVASER_USB_EAN_MSB) {
                snprintf(buf, sizeof(buf), "%x%08x", dev->ean[1], dev->ean[0]);
                ret = devlink_info_version_fixed_put(req,
                                                     DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
                                                     buf);
                if (ret)
                        return ret;
        }

        return 0;
}

const struct devlink_ops kvaser_usb_devlink_ops = {
        .info_get = kvaser_usb_devlink_info_get,
};

int kvaser_usb_devlink_port_register(struct kvaser_usb_net_priv *priv)
{
        int ret;
        struct devlink_port_attrs attrs = {
                .flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL,
                .phys.port_number = priv->channel,
        };
        devlink_port_attrs_set(&priv->devlink_port, &attrs);

        ret = devlink_port_register(priv_to_devlink(priv->dev),
                                    &priv->devlink_port, priv->channel);
        if (ret)
                return ret;

        SET_NETDEV_DEVLINK_PORT(priv->netdev, &priv->devlink_port);

        return 0;
}

void kvaser_usb_devlink_port_unregister(struct kvaser_usb_net_priv *priv)
{
        devlink_port_unregister(&priv->devlink_port);
}