1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * MAC commands interface
4 *
5 * Copyright 2007-2012 Siemens AG
6 *
7 * Written by:
8 * Sergey Lapin <slapin@ossfans.org>
9 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
10 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
11 */
12
13#include <linux/skbuff.h>
14#include <linux/if_arp.h>
15#include <linux/ieee802154.h>
16
17#include <net/ieee802154_netdev.h>
18#include <net/cfg802154.h>
19#include <net/mac802154.h>
20
21#include "ieee802154_i.h"
22#include "driver-ops.h"
23
24static int mac802154_mlme_start_req(struct net_device *dev,
25				    struct ieee802154_addr *addr,
26				    u8 channel, u8 page,
27				    u8 bcn_ord, u8 sf_ord,
28				    u8 pan_coord, u8 blx,
29				    u8 coord_realign)
30{
31	struct ieee802154_llsec_params params;
32	int changed = 0;
33
34	ASSERT_RTNL();
35
36	BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
37
38	dev->ieee802154_ptr->pan_id = addr->pan_id;
39	dev->ieee802154_ptr->short_addr = addr->short_addr;
40	mac802154_dev_set_page_channel(dev, page, channel);
41
42	params.pan_id = addr->pan_id;
43	changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
44
45	params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);
46	changed |= IEEE802154_LLSEC_PARAM_HWADDR;
47
48	params.coord_hwaddr = params.hwaddr;
49	changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;
50
51	params.coord_shortaddr = addr->short_addr;
52	changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;
53
54	return mac802154_set_params(dev, &params, changed);
55}
56
57static int mac802154_set_mac_params(struct net_device *dev,
58				    const struct ieee802154_mac_params *params)
59{
60	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
61	struct ieee802154_local *local = sdata->local;
62	struct wpan_dev *wpan_dev = &sdata->wpan_dev;
63	int ret;
64
65	ASSERT_RTNL();
66
67	/* PHY */
68	wpan_dev->wpan_phy->transmit_power = params->transmit_power;
69	wpan_dev->wpan_phy->cca = params->cca;
70	wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level;
71
72	/* MAC */
73	wpan_dev->min_be = params->min_be;
74	wpan_dev->max_be = params->max_be;
75	wpan_dev->csma_retries = params->csma_retries;
76	wpan_dev->frame_retries = params->frame_retries;
77	wpan_dev->lbt = params->lbt;
78
79	if (local->hw.phy->flags & WPAN_PHY_FLAG_TXPOWER) {
80		ret = drv_set_tx_power(local, params->transmit_power);
81		if (ret < 0)
82			return ret;
83	}
84
85	if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_MODE) {
86		ret = drv_set_cca_mode(local, &params->cca);
87		if (ret < 0)
88			return ret;
89	}
90
91	if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
92		ret = drv_set_cca_ed_level(local, params->cca_ed_level);
93		if (ret < 0)
94			return ret;
95	}
96
97	return 0;
98}
99
100static void mac802154_get_mac_params(struct net_device *dev,
101				     struct ieee802154_mac_params *params)
102{
103	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
104	struct wpan_dev *wpan_dev = &sdata->wpan_dev;
105
106	ASSERT_RTNL();
107
108	/* PHY */
109	params->transmit_power = wpan_dev->wpan_phy->transmit_power;
110	params->cca = wpan_dev->wpan_phy->cca;
111	params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level;
112
113	/* MAC */
114	params->min_be = wpan_dev->min_be;
115	params->max_be = wpan_dev->max_be;
116	params->csma_retries = wpan_dev->csma_retries;
117	params->frame_retries = wpan_dev->frame_retries;
118	params->lbt = wpan_dev->lbt;
119}
120
121static const struct ieee802154_llsec_ops mac802154_llsec_ops = {
122	.get_params = mac802154_get_params,
123	.set_params = mac802154_set_params,
124	.add_key = mac802154_add_key,
125	.del_key = mac802154_del_key,
126	.add_dev = mac802154_add_dev,
127	.del_dev = mac802154_del_dev,
128	.add_devkey = mac802154_add_devkey,
129	.del_devkey = mac802154_del_devkey,
130	.add_seclevel = mac802154_add_seclevel,
131	.del_seclevel = mac802154_del_seclevel,
132	.lock_table = mac802154_lock_table,
133	.get_table = mac802154_get_table,
134	.unlock_table = mac802154_unlock_table,
135};
136
137struct ieee802154_mlme_ops mac802154_mlme_wpan = {
138	.start_req = mac802154_mlme_start_req,
139
140	.llsec = &mac802154_llsec_ops,
141
142	.set_mac_params = mac802154_set_mac_params,
143	.get_mac_params = mac802154_get_mac_params,
144};
145