summaryrefslogtreecommitdiffstats
path: root/net/mac802154/cfg.c
blob: c865ebb2ace2b0b74cf3ba994c085790cde83da6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
/* This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * Authors:
 * Alexander Aring <aar@pengutronix.de>
 *
 * Based on: net/mac80211/cfg.c
 */

#include <net/rtnetlink.h>
#include <net/cfg802154.h>

#include "ieee802154_i.h"
#include "driver-ops.h"
#include "cfg.h"

static struct net_device *
ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy,
				const char *name,
				unsigned char name_assign_type, int type)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
	struct net_device *dev;

	rtnl_lock();
	dev = ieee802154_if_add(local, name, name_assign_type, type,
				cpu_to_le64(0x0000000000000000ULL));
	rtnl_unlock();

	return dev;
}

static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy,
					    struct net_device *dev)
{
	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);

	ieee802154_if_remove(sdata);
}

#ifdef CONFIG_PM
static int ieee802154_suspend(struct wpan_phy *wpan_phy)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);

	if (!local->open_count)
		goto suspend;

	ieee802154_stop_queue(&local->hw);
	synchronize_net();

	/* stop hardware - this must stop RX */
	ieee802154_stop_device(local);

suspend:
	local->suspended = true;
	return 0;
}

static int ieee802154_resume(struct wpan_phy *wpan_phy)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
	int ret;

	/* nothing to do if HW shouldn't run */
	if (!local->open_count)
		goto wake_up;

	/* restart hardware */
	ret = drv_start(local);
	if (ret)
		return ret;

wake_up:
	ieee802154_wake_queue(&local->hw);
	local->suspended = false;
	return 0;
}
#else
#define ieee802154_suspend NULL
#define ieee802154_resume NULL
#endif

static int
ieee802154_add_iface(struct wpan_phy *phy, const char *name,
		     unsigned char name_assign_type,
		     enum nl802154_iftype type, __le64 extended_addr)
{
	struct ieee802154_local *local = wpan_phy_priv(phy);
	struct net_device *err;

	err = ieee802154_if_add(local, name, name_assign_type, type,
				extended_addr);
	return PTR_ERR_OR_ZERO(err);
}

static int
ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
{
	ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));

	return 0;
}

static int
ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
	int ret;

	ASSERT_RTNL();

	if (wpan_phy->current_page == page &&
	    wpan_phy->current_channel == channel)
		return 0;

	ret = drv_set_channel(local, page, channel);
	if (!ret) {
		wpan_phy->current_page = page;
		wpan_phy->current_channel = channel;
	}

	return ret;
}

static int
ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
			const struct wpan_phy_cca *cca)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
	int ret;

	ASSERT_RTNL();

	if (wpan_phy_cca_cmp(&wpan_phy->cca, cca))
		return 0;

	ret = drv_set_cca_mode(local, cca);
	if (!ret)
		wpan_phy->cca = *cca;

	return ret;
}

static int
ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
	int ret;

	ASSERT_RTNL();

	if (wpan_phy->cca_ed_level == ed_level)
		return 0;

	ret = drv_set_cca_ed_level(local, ed_level);
	if (!ret)
		wpan_phy->cca_ed_level = ed_level;

	return ret;
}

static int
ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power)
{
	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
	int ret;

	ASSERT_RTNL();

	if (wpan_phy->transmit_power == power)
		return 0;

	ret = drv_set_tx_power(local, power);
	if (!ret)
		wpan_phy->transmit_power = power;

	return ret;
}

static int
ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
		      __le16 pan_id)
{
	int ret;

	ASSERT_RTNL();

	if (wpan_dev->pan_id == pan_id)
		return 0;

	ret = mac802154_wpan_update_llsec(wpan_dev->netdev);
	if (!ret)
		wpan_dev->pan_id = pan_id;

	return ret;
}

static int
ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
				struct wpan_dev *wpan_dev,
				u8 min_be, u8 max_be)
{
	ASSERT_RTNL();

	wpan_dev->min_be = min_be;
	wpan_dev->max_be = max_be;
	return 0;
}

static int
ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
			  __le16 short_addr)
{
	ASSERT_RTNL();

	wpan_dev->short_addr = short_addr;
	return 0;
}

static int
ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
				 struct wpan_dev *wpan_dev,
				 u8 max_csma_backoffs)
{
	ASSERT_RTNL();

	wpan_dev->csma_retries = max_csma_backoffs;
	return 0;
}

static int
ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
				 struct wpan_dev *wpan_dev,
				 s8 max_frame_retries)
{
	ASSERT_RTNL();

	wpan_dev->frame_retries = max_frame_retries;
	return 0;
}

static int
ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
			bool mode)
{
	ASSERT_RTNL();

	wpan_dev->lbt = mode;
	return 0;
}

static int
ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy,
			      struct wpan_dev *wpan_dev, bool ackreq)
{
	ASSERT_RTNL();

	wpan_dev->ackreq = ackreq;
	return 0;
}

const struct cfg802154_ops mac802154_config_ops = {
	.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
	.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
	.suspend = ieee802154_suspend,
	.resume = ieee802154_resume,
	.add_virtual_intf = ieee802154_add_iface,
	.del_virtual_intf = ieee802154_del_iface,
	.set_channel = ieee802154_set_channel,
	.set_cca_mode = ieee802154_set_cca_mode,
	.set_cca_ed_level = ieee802154_set_cca_ed_level,
	.set_tx_power = ieee802154_set_tx_power,
	.set_pan_id = ieee802154_set_pan_id,
	.set_short_addr = ieee802154_set_short_addr,
	.set_backoff_exponent = ieee802154_set_backoff_exponent,
	.set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
	.set_max_frame_retries = ieee802154_set_max_frame_retries,
	.set_lbt_mode = ieee802154_set_lbt_mode,
	.set_ackreq_default = ieee802154_set_ackreq_default,
};
OpenPOWER on IntegriCloud