]>
Commit | Line | Data |
---|---|---|
ff9fc791 HS |
1 | /* |
2 | * Implement cfg80211 ("iw") support. | |
3 | * | |
4 | * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany | |
5 | * Holger Schurig <hs4233@mail.mn-solutions.de> | |
6 | * | |
7 | */ | |
8 | ||
9 | #include <net/cfg80211.h> | |
10 | ||
11 | #include "cfg.h" | |
12 | #include "cmd.h" | |
13 | ||
14 | ||
15 | #define CHAN2G(_channel, _freq, _flags) { \ | |
16 | .band = IEEE80211_BAND_2GHZ, \ | |
17 | .center_freq = (_freq), \ | |
18 | .hw_value = (_channel), \ | |
19 | .flags = (_flags), \ | |
20 | .max_antenna_gain = 0, \ | |
21 | .max_power = 30, \ | |
22 | } | |
23 | ||
24 | static struct ieee80211_channel lbs_2ghz_channels[] = { | |
25 | CHAN2G(1, 2412, 0), | |
26 | CHAN2G(2, 2417, 0), | |
27 | CHAN2G(3, 2422, 0), | |
28 | CHAN2G(4, 2427, 0), | |
29 | CHAN2G(5, 2432, 0), | |
30 | CHAN2G(6, 2437, 0), | |
31 | CHAN2G(7, 2442, 0), | |
32 | CHAN2G(8, 2447, 0), | |
33 | CHAN2G(9, 2452, 0), | |
34 | CHAN2G(10, 2457, 0), | |
35 | CHAN2G(11, 2462, 0), | |
36 | CHAN2G(12, 2467, 0), | |
37 | CHAN2G(13, 2472, 0), | |
38 | CHAN2G(14, 2484, 0), | |
39 | }; | |
40 | ||
41 | #define RATETAB_ENT(_rate, _rateid, _flags) { \ | |
42 | .bitrate = (_rate), \ | |
43 | .hw_value = (_rateid), \ | |
44 | .flags = (_flags), \ | |
45 | } | |
46 | ||
47 | ||
48 | static struct ieee80211_rate lbs_rates[] = { | |
49 | RATETAB_ENT(10, 0x1, 0), | |
50 | RATETAB_ENT(20, 0x2, 0), | |
51 | RATETAB_ENT(55, 0x4, 0), | |
52 | RATETAB_ENT(110, 0x8, 0), | |
53 | RATETAB_ENT(60, 0x10, 0), | |
54 | RATETAB_ENT(90, 0x20, 0), | |
55 | RATETAB_ENT(120, 0x40, 0), | |
56 | RATETAB_ENT(180, 0x80, 0), | |
57 | RATETAB_ENT(240, 0x100, 0), | |
58 | RATETAB_ENT(360, 0x200, 0), | |
59 | RATETAB_ENT(480, 0x400, 0), | |
60 | RATETAB_ENT(540, 0x800, 0), | |
61 | }; | |
62 | ||
63 | static struct ieee80211_supported_band lbs_band_2ghz = { | |
64 | .channels = lbs_2ghz_channels, | |
65 | .n_channels = ARRAY_SIZE(lbs_2ghz_channels), | |
66 | .bitrates = lbs_rates, | |
67 | .n_bitrates = ARRAY_SIZE(lbs_rates), | |
68 | }; | |
69 | ||
70 | ||
71 | static const u32 cipher_suites[] = { | |
72 | WLAN_CIPHER_SUITE_WEP40, | |
73 | WLAN_CIPHER_SUITE_WEP104, | |
74 | WLAN_CIPHER_SUITE_TKIP, | |
75 | WLAN_CIPHER_SUITE_CCMP, | |
76 | }; | |
77 | ||
78 | ||
79 | ||
80 | static int lbs_cfg_set_channel(struct wiphy *wiphy, | |
81 | struct ieee80211_channel *chan, | |
82 | enum nl80211_channel_type channel_type) | |
83 | { | |
84 | struct lbs_private *priv = wiphy_priv(wiphy); | |
85 | int ret = -ENOTSUPP; | |
86 | ||
87 | lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d", chan->center_freq, channel_type); | |
88 | ||
89 | if (channel_type != NL80211_CHAN_NO_HT) | |
90 | goto out; | |
91 | ||
92 | ret = lbs_set_channel(priv, chan->hw_value); | |
93 | ||
94 | out: | |
95 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
96 | return ret; | |
97 | } | |
98 | ||
99 | ||
100 | ||
101 | ||
102 | static struct cfg80211_ops lbs_cfg80211_ops = { | |
103 | .set_channel = lbs_cfg_set_channel, | |
104 | }; | |
105 | ||
106 | ||
107 | /* | |
108 | * At this time lbs_private *priv doesn't even exist, so we just allocate | |
109 | * memory and don't initialize the wiphy further. This is postponed until we | |
110 | * can talk to the firmware and happens at registration time in | |
111 | * lbs_cfg_wiphy_register(). | |
112 | */ | |
113 | struct wireless_dev *lbs_cfg_alloc(struct device *dev) | |
114 | { | |
115 | int ret = 0; | |
116 | struct wireless_dev *wdev; | |
117 | ||
118 | lbs_deb_enter(LBS_DEB_CFG80211); | |
119 | ||
120 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
121 | if (!wdev) { | |
122 | dev_err(dev, "cannot allocate wireless device\n"); | |
123 | return ERR_PTR(-ENOMEM); | |
124 | } | |
125 | ||
126 | wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private)); | |
127 | if (!wdev->wiphy) { | |
128 | dev_err(dev, "cannot allocate wiphy\n"); | |
129 | ret = -ENOMEM; | |
130 | goto err_wiphy_new; | |
131 | } | |
132 | ||
133 | lbs_deb_leave(LBS_DEB_CFG80211); | |
134 | return wdev; | |
135 | ||
136 | err_wiphy_new: | |
137 | kfree(wdev); | |
138 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
139 | return ERR_PTR(ret); | |
140 | } | |
141 | ||
142 | ||
143 | /* | |
144 | * This function get's called after lbs_setup_firmware() determined the | |
145 | * firmware capabities. So we can setup the wiphy according to our | |
146 | * hardware/firmware. | |
147 | */ | |
148 | int lbs_cfg_register(struct lbs_private *priv) | |
149 | { | |
150 | struct wireless_dev *wdev = priv->wdev; | |
151 | int ret; | |
152 | ||
153 | lbs_deb_enter(LBS_DEB_CFG80211); | |
154 | ||
155 | wdev->wiphy->max_scan_ssids = 1; | |
156 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
157 | ||
158 | /* TODO: BIT(NL80211_IFTYPE_ADHOC); */ | |
159 | wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
160 | ||
161 | /* TODO: honor priv->regioncode */ | |
162 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz; | |
163 | ||
164 | /* | |
165 | * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have | |
166 | * never seen a firmware without WPA | |
167 | */ | |
168 | wdev->wiphy->cipher_suites = cipher_suites; | |
169 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
170 | ||
171 | ret = wiphy_register(wdev->wiphy); | |
172 | if (ret < 0) | |
173 | lbs_pr_err("cannot register wiphy device\n"); | |
174 | ||
175 | ret = register_netdev(priv->dev); | |
176 | if (ret) | |
177 | lbs_pr_err("cannot register network device\n"); | |
178 | ||
179 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
180 | return ret; | |
181 | } | |
182 | ||
183 | ||
184 | void lbs_cfg_free(struct lbs_private *priv) | |
185 | { | |
186 | struct wireless_dev *wdev = priv->wdev; | |
187 | ||
188 | lbs_deb_enter(LBS_DEB_CFG80211); | |
189 | ||
190 | if (!wdev) | |
191 | return; | |
192 | ||
193 | if (wdev->wiphy) { | |
194 | wiphy_unregister(wdev->wiphy); | |
195 | wiphy_free(wdev->wiphy); | |
196 | } | |
197 | kfree(wdev); | |
198 | } |