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
24 static 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, ¶ms, changed);
55 }
56
57 static 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, ¶ms->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
100 static 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
121 static 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
137 struct 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
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