1// SPDX-License-Identifier: GPL-2.0+
2/* Copyright (c) 2022 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
3 *
4 */
5
6#include <linux/can/dev.h>
7#include <linux/ethtool.h>
8#include <linux/kernel.h>
9#include <linux/netdevice.h>
10#include <linux/platform_device.h>
11
12#include "slcan.h"
13
14static const char slcan_priv_flags_strings[][ETH_GSTRING_LEN] = {
15#define SLCAN_PRIV_FLAGS_ERR_RST_ON_OPEN BIT(0)
16	"err-rst-on-open",
17};
18
19static void slcan_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
20{
21	switch (stringset) {
22	case ETH_SS_PRIV_FLAGS:
23		memcpy(data, slcan_priv_flags_strings,
24		       sizeof(slcan_priv_flags_strings));
25	}
26}
27
28static u32 slcan_get_priv_flags(struct net_device *ndev)
29{
30	u32 flags = 0;
31
32	if (slcan_err_rst_on_open(ndev))
33		flags |= SLCAN_PRIV_FLAGS_ERR_RST_ON_OPEN;
34
35	return flags;
36}
37
38static int slcan_set_priv_flags(struct net_device *ndev, u32 flags)
39{
40	bool err_rst_op_open = !!(flags & SLCAN_PRIV_FLAGS_ERR_RST_ON_OPEN);
41
42	return slcan_enable_err_rst_on_open(ndev, err_rst_op_open);
43}
44
45static int slcan_get_sset_count(struct net_device *netdev, int sset)
46{
47	switch (sset) {
48	case ETH_SS_PRIV_FLAGS:
49		return ARRAY_SIZE(slcan_priv_flags_strings);
50	default:
51		return -EOPNOTSUPP;
52	}
53}
54
55const struct ethtool_ops slcan_ethtool_ops = {
56	.get_strings = slcan_get_strings,
57	.get_priv_flags = slcan_get_priv_flags,
58	.set_priv_flags = slcan_set_priv_flags,
59	.get_sset_count = slcan_get_sset_count,
60	.get_ts_info = ethtool_op_get_ts_info,
61};
62