drivers/net/wireless/marvell/mwifiex/ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/marvell/mwifiex/ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/marvell/mwifiex/ethtool.c
Extension
.c
Size
1599 bytes
Lines
59
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * NXP Wireless LAN device driver: ethtool
 *
 * Copyright 2011-2020 NXP
 */

#include "main.h"

static void mwifiex_ethtool_get_wol(struct net_device *dev,
				    struct ethtool_wolinfo *wol)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	u32 conditions = le32_to_cpu(priv->adapter->hs_cfg.conditions);

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

	if (conditions == HS_CFG_COND_DEF)
		return;

	if (conditions & HS_CFG_COND_UNICAST_DATA)
		wol->wolopts |= WAKE_UCAST;
	if (conditions & HS_CFG_COND_MULTICAST_DATA)
		wol->wolopts |= WAKE_MCAST;
	if (conditions & HS_CFG_COND_BROADCAST_DATA)
		wol->wolopts |= WAKE_BCAST;
	if (conditions & HS_CFG_COND_MAC_EVENT)
		wol->wolopts |= WAKE_PHY;
}

static int mwifiex_ethtool_set_wol(struct net_device *dev,
				   struct ethtool_wolinfo *wol)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	u32 conditions = 0;

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

	if (wol->wolopts & WAKE_UCAST)
		conditions |= HS_CFG_COND_UNICAST_DATA;
	if (wol->wolopts & WAKE_MCAST)
		conditions |= HS_CFG_COND_MULTICAST_DATA;
	if (wol->wolopts & WAKE_BCAST)
		conditions |= HS_CFG_COND_BROADCAST_DATA;
	if (wol->wolopts & WAKE_PHY)
		conditions |= HS_CFG_COND_MAC_EVENT;
	if (wol->wolopts == 0)
		conditions |= HS_CFG_COND_DEF;
	priv->adapter->hs_cfg.conditions = cpu_to_le32(conditions);

	return 0;
}

const struct ethtool_ops mwifiex_ethtool_ops = {
	.get_wol = mwifiex_ethtool_get_wol,
	.set_wol = mwifiex_ethtool_set_wol,
};

Annotation

Implementation Notes