1/*
2 * MAC commands interface
3 *
4 * Copyright 2007-2012 Siemens AG
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * Written by:
16 * Sergey Lapin <slapin@ossfans.org>
17 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
18 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
19 */
20
21#include <linux/skbuff.h>
22#include <linux/if_arp.h>
23#include <linux/ieee802154.h>
24
25#include <net/ieee802154_netdev.h>
26#include <net/cfg802154.h>
27#include <net/mac802154.h>
28
29#include "ieee802154_i.h"
30#include "driver-ops.h"
31
32static int mac802154_mlme_start_req(struct net_device *dev,
33				    struct ieee802154_addr *addr,
34				    u8 channel, u8 page,
35				    u8 bcn_ord, u8 sf_ord,
36				    u8 pan_coord, u8 blx,
37				    u8 coord_realign)
38{
39	struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
40	int rc = 0;
41
42	ASSERT_RTNL();
43
44	BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
45
46	mac802154_dev_set_pan_id(dev, addr->pan_id);
47	mac802154_dev_set_short_addr(dev, addr->short_addr);
48	mac802154_dev_set_page_channel(dev, page, channel);
49
50	if (ops->llsec) {
51		struct ieee802154_llsec_params params;
52		int changed = 0;
53
54		params.coord_shortaddr = addr->short_addr;
55		changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;
56
57		params.pan_id = addr->pan_id;
58		changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
59
60		params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);
61		changed |= IEEE802154_LLSEC_PARAM_HWADDR;
62
63		params.coord_hwaddr = params.hwaddr;
64		changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;
65
66		rc = ops->llsec->set_params(dev, &params, changed);
67	}
68
69	return rc;
70}
71
72static int mac802154_set_mac_params(struct net_device *dev,
73				    const struct ieee802154_mac_params *params)
74{
75	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
76	struct ieee802154_local *local = sdata->local;
77	struct wpan_dev *wpan_dev = &sdata->wpan_dev;
78	int ret;
79
80	ASSERT_RTNL();
81
82	/* PHY */
83	wpan_dev->wpan_phy->transmit_power = params->transmit_power;
84	wpan_dev->wpan_phy->cca = params->cca;
85	wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level;
86
87	/* MAC */
88	wpan_dev->min_be = params->min_be;
89	wpan_dev->max_be = params->max_be;
90	wpan_dev->csma_retries = params->csma_retries;
91	wpan_dev->frame_retries = params->frame_retries;
92	wpan_dev->lbt = params->lbt;
93
94	if (local->hw.flags & IEEE802154_HW_TXPOWER) {
95		ret = drv_set_tx_power(local, params->transmit_power);
96		if (ret < 0)
97			return ret;
98	}
99
100	if (local->hw.flags & IEEE802154_HW_CCA_MODE) {
101		ret = drv_set_cca_mode(local, &params->cca);
102		if (ret < 0)
103			return ret;
104	}
105
106	if (local->hw.flags & IEEE802154_HW_CCA_ED_LEVEL) {
107		ret = drv_set_cca_ed_level(local, params->cca_ed_level);
108		if (ret < 0)
109			return ret;
110	}
111
112	return 0;
113}
114
115static void mac802154_get_mac_params(struct net_device *dev,
116				     struct ieee802154_mac_params *params)
117{
118	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
119	struct wpan_dev *wpan_dev = &sdata->wpan_dev;
120
121	ASSERT_RTNL();
122
123	/* PHY */
124	params->transmit_power = wpan_dev->wpan_phy->transmit_power;
125	params->cca = wpan_dev->wpan_phy->cca;
126	params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level;
127
128	/* MAC */
129	params->min_be = wpan_dev->min_be;
130	params->max_be = wpan_dev->max_be;
131	params->csma_retries = wpan_dev->csma_retries;
132	params->frame_retries = wpan_dev->frame_retries;
133	params->lbt = wpan_dev->lbt;
134}
135
136static struct ieee802154_llsec_ops mac802154_llsec_ops = {
137	.get_params = mac802154_get_params,
138	.set_params = mac802154_set_params,
139	.add_key = mac802154_add_key,
140	.del_key = mac802154_del_key,
141	.add_dev = mac802154_add_dev,
142	.del_dev = mac802154_del_dev,
143	.add_devkey = mac802154_add_devkey,
144	.del_devkey = mac802154_del_devkey,
145	.add_seclevel = mac802154_add_seclevel,
146	.del_seclevel = mac802154_del_seclevel,
147	.lock_table = mac802154_lock_table,
148	.get_table = mac802154_get_table,
149	.unlock_table = mac802154_unlock_table,
150};
151
152struct ieee802154_mlme_ops mac802154_mlme_wpan = {
153	.start_req = mac802154_mlme_start_req,
154	.get_pan_id = mac802154_dev_get_pan_id,
155	.get_short_addr = mac802154_dev_get_short_addr,
156	.get_dsn = mac802154_dev_get_dsn,
157
158	.llsec = &mac802154_llsec_ops,
159
160	.set_mac_params = mac802154_set_mac_params,
161	.get_mac_params = mac802154_get_mac_params,
162};
163