// SPDX-License-Identifier: GPL-2.0
#include <linux/hardirq.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/delay.h>

#include "decl.h"
#include "cmd.h"
#include "mesh.h"


static void lbs_ethtool_get_drvinfo(struct net_device *dev,
                                         struct ethtool_drvinfo *info)
{
        struct lbs_private *priv = dev->ml_priv;

        snprintf(info->fw_version, sizeof(info->fw_version),
                "%u.%u.%u.p%u",
                priv->fwrelease >> 24 & 0xff,
                priv->fwrelease >> 16 & 0xff,
                priv->fwrelease >>  8 & 0xff,
                priv->fwrelease       & 0xff);
        strscpy(info->driver, "libertas", sizeof(info->driver));
        strscpy(info->version, lbs_driver_version, sizeof(info->version));
}

/*
 * All 8388 parts have 16KiB EEPROM size at the time of writing.
 * In case that changes this needs fixing.
 */
#define LBS_EEPROM_LEN 16384

static int lbs_ethtool_get_eeprom_len(struct net_device *dev)
{
        return LBS_EEPROM_LEN;
}

static int lbs_ethtool_get_eeprom(struct net_device *dev,
                                  struct ethtool_eeprom *eeprom, u8 * bytes)
{
        struct lbs_private *priv = dev->ml_priv;
        struct cmd_ds_802_11_eeprom_access cmd;
        int ret;

        if (eeprom->offset + eeprom->len > LBS_EEPROM_LEN ||
            eeprom->len > LBS_EEPROM_READ_LEN)
                return -EINVAL;

        cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) -
                LBS_EEPROM_READ_LEN + eeprom->len);
        cmd.action = cpu_to_le16(CMD_ACT_GET);
        cmd.offset = cpu_to_le16(eeprom->offset);
        cmd.len    = cpu_to_le16(eeprom->len);
        ret = lbs_cmd_with_response(priv, CMD_802_11_EEPROM_ACCESS, &cmd);
        if (!ret)
                memcpy(bytes, cmd.value, eeprom->len);

        return ret;
}

static void lbs_ethtool_get_wol(struct net_device *dev,
                                struct ethtool_wolinfo *wol)
{
        struct lbs_private *priv = dev->ml_priv;

        wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;

        if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
                return;

        if (priv->wol_criteria & EHS_WAKE_ON_UNICAST_DATA)
                wol->wolopts |= WAKE_UCAST;
        if (priv->wol_criteria & EHS_WAKE_ON_MULTICAST_DATA)
                wol->wolopts |= WAKE_MCAST;
        if (priv->wol_criteria & EHS_WAKE_ON_BROADCAST_DATA)
                wol->wolopts |= WAKE_BCAST;
        if (priv->wol_criteria & EHS_WAKE_ON_MAC_EVENT)
                wol->wolopts |= WAKE_PHY;
}

static int lbs_ethtool_set_wol(struct net_device *dev,
                               struct ethtool_wolinfo *wol)
{
        struct lbs_private *priv = dev->ml_priv;

        if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
                return -EOPNOTSUPP;

        priv->wol_criteria = 0;
        if (wol->wolopts & WAKE_UCAST)
                priv->wol_criteria |= EHS_WAKE_ON_UNICAST_DATA;
        if (wol->wolopts & WAKE_MCAST)
                priv->wol_criteria |= EHS_WAKE_ON_MULTICAST_DATA;
        if (wol->wolopts & WAKE_BCAST)
                priv->wol_criteria |= EHS_WAKE_ON_BROADCAST_DATA;
        if (wol->wolopts & WAKE_PHY)
                priv->wol_criteria |= EHS_WAKE_ON_MAC_EVENT;
        if (wol->wolopts == 0)
                priv->wol_criteria |= EHS_REMOVE_WAKEUP;
        return 0;
}

const struct ethtool_ops lbs_ethtool_ops = {
        .get_drvinfo = lbs_ethtool_get_drvinfo,
        .get_eeprom =  lbs_ethtool_get_eeprom,
        .get_eeprom_len = lbs_ethtool_get_eeprom_len,
#ifdef CONFIG_LIBERTAS_MESH
        .get_sset_count = lbs_mesh_ethtool_get_sset_count,
        .get_ethtool_stats = lbs_mesh_ethtool_get_stats,
        .get_strings = lbs_mesh_ethtool_get_strings,
#endif
        .get_wol = lbs_ethtool_get_wol,
        .set_wol = lbs_ethtool_set_wol,
};