linux/drivers/net/wireless/marvell/libertas/ethtool.c
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   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/hardirq.h>
   3#include <linux/netdevice.h>
   4#include <linux/ethtool.h>
   5#include <linux/delay.h>
   6
   7#include "decl.h"
   8#include "cmd.h"
   9#include "mesh.h"
  10
  11
  12static void lbs_ethtool_get_drvinfo(struct net_device *dev,
  13                                         struct ethtool_drvinfo *info)
  14{
  15        struct lbs_private *priv = dev->ml_priv;
  16
  17        snprintf(info->fw_version, sizeof(info->fw_version),
  18                "%u.%u.%u.p%u",
  19                priv->fwrelease >> 24 & 0xff,
  20                priv->fwrelease >> 16 & 0xff,
  21                priv->fwrelease >>  8 & 0xff,
  22                priv->fwrelease       & 0xff);
  23        strlcpy(info->driver, "libertas", sizeof(info->driver));
  24        strlcpy(info->version, lbs_driver_version, sizeof(info->version));
  25}
  26
  27/*
  28 * All 8388 parts have 16KiB EEPROM size at the time of writing.
  29 * In case that changes this needs fixing.
  30 */
  31#define LBS_EEPROM_LEN 16384
  32
  33static int lbs_ethtool_get_eeprom_len(struct net_device *dev)
  34{
  35        return LBS_EEPROM_LEN;
  36}
  37
  38static int lbs_ethtool_get_eeprom(struct net_device *dev,
  39                                  struct ethtool_eeprom *eeprom, u8 * bytes)
  40{
  41        struct lbs_private *priv = dev->ml_priv;
  42        struct cmd_ds_802_11_eeprom_access cmd;
  43        int ret;
  44
  45        if (eeprom->offset + eeprom->len > LBS_EEPROM_LEN ||
  46            eeprom->len > LBS_EEPROM_READ_LEN) {
  47                ret = -EINVAL;
  48                goto out;
  49        }
  50
  51        cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) -
  52                LBS_EEPROM_READ_LEN + eeprom->len);
  53        cmd.action = cpu_to_le16(CMD_ACT_GET);
  54        cmd.offset = cpu_to_le16(eeprom->offset);
  55        cmd.len    = cpu_to_le16(eeprom->len);
  56        ret = lbs_cmd_with_response(priv, CMD_802_11_EEPROM_ACCESS, &cmd);
  57        if (!ret)
  58                memcpy(bytes, cmd.value, eeprom->len);
  59
  60out:
  61        return ret;
  62}
  63
  64static void lbs_ethtool_get_wol(struct net_device *dev,
  65                                struct ethtool_wolinfo *wol)
  66{
  67        struct lbs_private *priv = dev->ml_priv;
  68
  69        wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;
  70
  71        if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
  72                return;
  73
  74        if (priv->wol_criteria & EHS_WAKE_ON_UNICAST_DATA)
  75                wol->wolopts |= WAKE_UCAST;
  76        if (priv->wol_criteria & EHS_WAKE_ON_MULTICAST_DATA)
  77                wol->wolopts |= WAKE_MCAST;
  78        if (priv->wol_criteria & EHS_WAKE_ON_BROADCAST_DATA)
  79                wol->wolopts |= WAKE_BCAST;
  80        if (priv->wol_criteria & EHS_WAKE_ON_MAC_EVENT)
  81                wol->wolopts |= WAKE_PHY;
  82}
  83
  84static int lbs_ethtool_set_wol(struct net_device *dev,
  85                               struct ethtool_wolinfo *wol)
  86{
  87        struct lbs_private *priv = dev->ml_priv;
  88
  89        if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
  90                return -EOPNOTSUPP;
  91
  92        priv->wol_criteria = 0;
  93        if (wol->wolopts & WAKE_UCAST)
  94                priv->wol_criteria |= EHS_WAKE_ON_UNICAST_DATA;
  95        if (wol->wolopts & WAKE_MCAST)
  96                priv->wol_criteria |= EHS_WAKE_ON_MULTICAST_DATA;
  97        if (wol->wolopts & WAKE_BCAST)
  98                priv->wol_criteria |= EHS_WAKE_ON_BROADCAST_DATA;
  99        if (wol->wolopts & WAKE_PHY)
 100                priv->wol_criteria |= EHS_WAKE_ON_MAC_EVENT;
 101        if (wol->wolopts == 0)
 102                priv->wol_criteria |= EHS_REMOVE_WAKEUP;
 103        return 0;
 104}
 105
 106const struct ethtool_ops lbs_ethtool_ops = {
 107        .get_drvinfo = lbs_ethtool_get_drvinfo,
 108        .get_eeprom =  lbs_ethtool_get_eeprom,
 109        .get_eeprom_len = lbs_ethtool_get_eeprom_len,
 110#ifdef CONFIG_LIBERTAS_MESH
 111        .get_sset_count = lbs_mesh_ethtool_get_sset_count,
 112        .get_ethtool_stats = lbs_mesh_ethtool_get_stats,
 113        .get_strings = lbs_mesh_ethtool_get_strings,
 114#endif
 115        .get_wol = lbs_ethtool_get_wol,
 116        .set_wol = lbs_ethtool_set_wol,
 117};
 118
 119