Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 1 | /* IEEE 802.11 SoftMAC layer |
Andrea Merello | 559a4c3 | 2013-08-26 13:53:30 +0200 | [diff] [blame] | 2 | * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com> |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 3 | * |
| 4 | * Mostly extracted from the rtl8180-sa2400 driver for the |
| 5 | * in-kernel generic ieee802.11 stack. |
| 6 | * |
| 7 | * Some pieces of code might be stolen from ipw2100 driver |
| 8 | * copyright of who own it's copyright ;-) |
| 9 | * |
| 10 | * PS wx handler mostly stolen from hostap, copyright who |
| 11 | * own it's copyright ;-) |
| 12 | * |
| 13 | * released under the GPL |
| 14 | */ |
| 15 | |
| 16 | |
Wei Yongjun | efe13d8 | 2012-08-23 16:50:12 +0800 | [diff] [blame] | 17 | #include <linux/etherdevice.h> |
| 18 | |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 19 | #include "rtllib.h" |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 20 | #include "dot11d.h" |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 21 | /* FIXME: add A freqs */ |
| 22 | |
| 23 | const long rtllib_wlan_frequencies[] = { |
| 24 | 2412, 2417, 2422, 2427, |
| 25 | 2432, 2437, 2442, 2447, |
| 26 | 2452, 2457, 2462, 2467, |
| 27 | 2472, 2484 |
| 28 | }; |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 29 | EXPORT_SYMBOL(rtllib_wlan_frequencies); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 30 | |
| 31 | |
| 32 | int rtllib_wx_set_freq(struct rtllib_device *ieee, struct iw_request_info *a, |
| 33 | union iwreq_data *wrqu, char *b) |
| 34 | { |
| 35 | int ret; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 36 | struct iw_freq *fwrq = &wrqu->freq; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 37 | |
| 38 | down(&ieee->wx_sem); |
| 39 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 40 | if (ieee->iw_mode == IW_MODE_INFRA) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 41 | ret = 0; |
| 42 | goto out; |
| 43 | } |
| 44 | |
| 45 | /* if setting by freq convert to channel */ |
| 46 | if (fwrq->e == 1) { |
| 47 | if ((fwrq->m >= (int) 2.412e8 && |
| 48 | fwrq->m <= (int) 2.487e8)) { |
| 49 | int f = fwrq->m / 100000; |
| 50 | int c = 0; |
| 51 | |
| 52 | while ((c < 14) && (f != rtllib_wlan_frequencies[c])) |
| 53 | c++; |
| 54 | |
| 55 | /* hack to fall through */ |
| 56 | fwrq->e = 0; |
| 57 | fwrq->m = c + 1; |
| 58 | } |
| 59 | } |
| 60 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 61 | if (fwrq->e > 0 || fwrq->m > 14 || fwrq->m < 1) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 62 | ret = -EOPNOTSUPP; |
| 63 | goto out; |
| 64 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 65 | } else { /* Set the channel */ |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 66 | |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 67 | if (ieee->active_channel_map[fwrq->m] != 1) { |
| 68 | ret = -EINVAL; |
| 69 | goto out; |
| 70 | } |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 71 | ieee->current_network.channel = fwrq->m; |
| 72 | ieee->set_chan(ieee->dev, ieee->current_network.channel); |
| 73 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 74 | if (ieee->iw_mode == IW_MODE_ADHOC || |
| 75 | ieee->iw_mode == IW_MODE_MASTER) |
| 76 | if (ieee->state == RTLLIB_LINKED) { |
| 77 | rtllib_stop_send_beacons(ieee); |
| 78 | rtllib_start_send_beacons(ieee); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 79 | } |
| 80 | } |
| 81 | |
| 82 | ret = 0; |
| 83 | out: |
| 84 | up(&ieee->wx_sem); |
| 85 | return ret; |
| 86 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 87 | EXPORT_SYMBOL(rtllib_wx_set_freq); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 88 | |
| 89 | |
| 90 | int rtllib_wx_get_freq(struct rtllib_device *ieee, |
| 91 | struct iw_request_info *a, |
| 92 | union iwreq_data *wrqu, char *b) |
| 93 | { |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 94 | struct iw_freq *fwrq = &wrqu->freq; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 95 | |
| 96 | if (ieee->current_network.channel == 0) |
| 97 | return -1; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 98 | fwrq->m = rtllib_wlan_frequencies[ieee->current_network.channel-1] * |
| 99 | 100000; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 100 | fwrq->e = 1; |
| 101 | return 0; |
| 102 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 103 | EXPORT_SYMBOL(rtllib_wx_get_freq); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 104 | |
| 105 | int rtllib_wx_get_wap(struct rtllib_device *ieee, |
| 106 | struct iw_request_info *info, |
| 107 | union iwreq_data *wrqu, char *extra) |
| 108 | { |
| 109 | unsigned long flags; |
| 110 | |
| 111 | wrqu->ap_addr.sa_family = ARPHRD_ETHER; |
| 112 | |
| 113 | if (ieee->iw_mode == IW_MODE_MONITOR) |
| 114 | return -1; |
| 115 | |
| 116 | /* We want avoid to give to the user inconsistent infos*/ |
| 117 | spin_lock_irqsave(&ieee->lock, flags); |
| 118 | |
| 119 | if (ieee->state != RTLLIB_LINKED && |
| 120 | ieee->state != RTLLIB_LINKED_SCANNING && |
| 121 | ieee->wap_set == 0) |
| 122 | |
Aya Mahfouz | 76f7369 | 2015-03-03 16:04:20 +0200 | [diff] [blame] | 123 | eth_zero_addr(wrqu->ap_addr.sa_data); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 124 | else |
| 125 | memcpy(wrqu->ap_addr.sa_data, |
| 126 | ieee->current_network.bssid, ETH_ALEN); |
| 127 | |
| 128 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 129 | |
| 130 | return 0; |
| 131 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 132 | EXPORT_SYMBOL(rtllib_wx_get_wap); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 133 | |
| 134 | |
| 135 | int rtllib_wx_set_wap(struct rtllib_device *ieee, |
| 136 | struct iw_request_info *info, |
| 137 | union iwreq_data *awrq, |
| 138 | char *extra) |
| 139 | { |
| 140 | |
| 141 | int ret = 0; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 142 | unsigned long flags; |
| 143 | |
| 144 | short ifup = ieee->proto_started; |
| 145 | struct sockaddr *temp = (struct sockaddr *)awrq; |
| 146 | |
| 147 | rtllib_stop_scan_syncro(ieee); |
| 148 | |
| 149 | down(&ieee->wx_sem); |
| 150 | /* use ifconfig hw ether */ |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 151 | if (ieee->iw_mode == IW_MODE_MASTER) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 152 | ret = -1; |
| 153 | goto out; |
| 154 | } |
| 155 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 156 | if (temp->sa_family != ARPHRD_ETHER) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 157 | ret = -EINVAL; |
| 158 | goto out; |
| 159 | } |
| 160 | |
Wei Yongjun | efe13d8 | 2012-08-23 16:50:12 +0800 | [diff] [blame] | 161 | if (is_zero_ether_addr(temp->sa_data)) { |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 162 | spin_lock_irqsave(&ieee->lock, flags); |
Mateusz Kulikowski | b57ceb1 | 2015-05-31 20:19:22 +0200 | [diff] [blame] | 163 | ether_addr_copy(ieee->current_network.bssid, temp->sa_data); |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 164 | ieee->wap_set = 0; |
| 165 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 166 | ret = -1; |
| 167 | goto out; |
| 168 | } |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 169 | |
| 170 | |
| 171 | if (ifup) |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 172 | rtllib_stop_protocol(ieee, true); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 173 | |
| 174 | /* just to avoid to give inconsistent infos in the |
| 175 | * get wx method. not really needed otherwise |
| 176 | */ |
| 177 | spin_lock_irqsave(&ieee->lock, flags); |
| 178 | |
| 179 | ieee->cannot_notify = false; |
Mateusz Kulikowski | b57ceb1 | 2015-05-31 20:19:22 +0200 | [diff] [blame] | 180 | ether_addr_copy(ieee->current_network.bssid, temp->sa_data); |
Wei Yongjun | efe13d8 | 2012-08-23 16:50:12 +0800 | [diff] [blame] | 181 | ieee->wap_set = !is_zero_ether_addr(temp->sa_data); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 182 | |
| 183 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 184 | |
| 185 | if (ifup) |
| 186 | rtllib_start_protocol(ieee); |
| 187 | out: |
| 188 | up(&ieee->wx_sem); |
| 189 | return ret; |
| 190 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 191 | EXPORT_SYMBOL(rtllib_wx_set_wap); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 192 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 193 | int rtllib_wx_get_essid(struct rtllib_device *ieee, struct iw_request_info *a, |
| 194 | union iwreq_data *wrqu, char *b) |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 195 | { |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 196 | int len, ret = 0; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 197 | unsigned long flags; |
| 198 | |
| 199 | if (ieee->iw_mode == IW_MODE_MONITOR) |
| 200 | return -1; |
| 201 | |
| 202 | /* We want avoid to give to the user inconsistent infos*/ |
| 203 | spin_lock_irqsave(&ieee->lock, flags); |
| 204 | |
| 205 | if (ieee->current_network.ssid[0] == '\0' || |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 206 | ieee->current_network.ssid_len == 0) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 207 | ret = -1; |
| 208 | goto out; |
| 209 | } |
| 210 | |
| 211 | if (ieee->state != RTLLIB_LINKED && |
| 212 | ieee->state != RTLLIB_LINKED_SCANNING && |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 213 | ieee->ssid_set == 0) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 214 | ret = -1; |
| 215 | goto out; |
| 216 | } |
| 217 | len = ieee->current_network.ssid_len; |
| 218 | wrqu->essid.length = len; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 219 | strncpy(b, ieee->current_network.ssid, len); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 220 | wrqu->essid.flags = 1; |
| 221 | |
| 222 | out: |
| 223 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 224 | |
| 225 | return ret; |
| 226 | |
| 227 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 228 | EXPORT_SYMBOL(rtllib_wx_get_essid); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 229 | |
| 230 | int rtllib_wx_set_rate(struct rtllib_device *ieee, |
| 231 | struct iw_request_info *info, |
| 232 | union iwreq_data *wrqu, char *extra) |
| 233 | { |
| 234 | |
| 235 | u32 target_rate = wrqu->bitrate.value; |
| 236 | |
| 237 | ieee->rate = target_rate/100000; |
| 238 | return 0; |
| 239 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 240 | EXPORT_SYMBOL(rtllib_wx_set_rate); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 241 | |
| 242 | int rtllib_wx_get_rate(struct rtllib_device *ieee, |
| 243 | struct iw_request_info *info, |
| 244 | union iwreq_data *wrqu, char *extra) |
| 245 | { |
Bhaktipriya Shridhar | 7949be6 | 2016-02-19 03:13:56 +0530 | [diff] [blame] | 246 | u32 tmp_rate; |
Matthew Casey | 3a6b70c | 2014-08-22 06:27:52 -0400 | [diff] [blame] | 247 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 248 | tmp_rate = TxCountToDataRate(ieee, |
| 249 | ieee->softmac_stats.CurrentShowTxate); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 250 | wrqu->bitrate.value = tmp_rate * 500000; |
| 251 | |
| 252 | return 0; |
| 253 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 254 | EXPORT_SYMBOL(rtllib_wx_get_rate); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 255 | |
| 256 | |
| 257 | int rtllib_wx_set_rts(struct rtllib_device *ieee, |
| 258 | struct iw_request_info *info, |
| 259 | union iwreq_data *wrqu, char *extra) |
| 260 | { |
| 261 | if (wrqu->rts.disabled || !wrqu->rts.fixed) |
| 262 | ieee->rts = DEFAULT_RTS_THRESHOLD; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 263 | else { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 264 | if (wrqu->rts.value < MIN_RTS_THRESHOLD || |
| 265 | wrqu->rts.value > MAX_RTS_THRESHOLD) |
| 266 | return -EINVAL; |
| 267 | ieee->rts = wrqu->rts.value; |
| 268 | } |
| 269 | return 0; |
| 270 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 271 | EXPORT_SYMBOL(rtllib_wx_set_rts); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 272 | |
| 273 | int rtllib_wx_get_rts(struct rtllib_device *ieee, |
| 274 | struct iw_request_info *info, |
| 275 | union iwreq_data *wrqu, char *extra) |
| 276 | { |
| 277 | wrqu->rts.value = ieee->rts; |
| 278 | wrqu->rts.fixed = 0; /* no auto select */ |
| 279 | wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD); |
| 280 | return 0; |
| 281 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 282 | EXPORT_SYMBOL(rtllib_wx_get_rts); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 283 | |
| 284 | int rtllib_wx_set_mode(struct rtllib_device *ieee, struct iw_request_info *a, |
| 285 | union iwreq_data *wrqu, char *b) |
| 286 | { |
| 287 | int set_mode_status = 0; |
| 288 | |
| 289 | rtllib_stop_scan_syncro(ieee); |
| 290 | down(&ieee->wx_sem); |
| 291 | switch (wrqu->mode) { |
| 292 | case IW_MODE_MONITOR: |
| 293 | case IW_MODE_ADHOC: |
| 294 | case IW_MODE_INFRA: |
| 295 | break; |
| 296 | case IW_MODE_AUTO: |
| 297 | wrqu->mode = IW_MODE_INFRA; |
| 298 | break; |
| 299 | default: |
| 300 | set_mode_status = -EINVAL; |
| 301 | goto out; |
| 302 | } |
| 303 | |
| 304 | if (wrqu->mode == ieee->iw_mode) |
| 305 | goto out; |
| 306 | |
| 307 | if (wrqu->mode == IW_MODE_MONITOR) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 308 | ieee->dev->type = ARPHRD_IEEE80211; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 309 | rtllib_EnableNetMonitorMode(ieee->dev, false); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 310 | } else { |
| 311 | ieee->dev->type = ARPHRD_ETHER; |
| 312 | if (ieee->iw_mode == IW_MODE_MONITOR) |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 313 | rtllib_DisableNetMonitorMode(ieee->dev, false); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | if (!ieee->proto_started) { |
| 317 | ieee->iw_mode = wrqu->mode; |
| 318 | } else { |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 319 | rtllib_stop_protocol(ieee, true); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 320 | ieee->iw_mode = wrqu->mode; |
| 321 | rtllib_start_protocol(ieee); |
| 322 | } |
| 323 | |
| 324 | out: |
| 325 | up(&ieee->wx_sem); |
| 326 | return set_mode_status; |
| 327 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 328 | EXPORT_SYMBOL(rtllib_wx_set_mode); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 329 | |
| 330 | void rtllib_wx_sync_scan_wq(void *data) |
| 331 | { |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 332 | struct rtllib_device *ieee = container_of_work_rsl(data, |
| 333 | struct rtllib_device, wx_sync_scan_wq); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 334 | short chan; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 335 | enum ht_extchnl_offset chan_offset = 0; |
| 336 | enum ht_channel_width bandwidth = 0; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 337 | int b40M = 0; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 338 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 339 | if (!(ieee->softmac_features & IEEE_SOFTMAC_SCAN)) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 340 | rtllib_start_scan_syncro(ieee, 0); |
| 341 | goto out; |
| 342 | } |
| 343 | |
| 344 | chan = ieee->current_network.channel; |
| 345 | |
| 346 | if (ieee->LeisurePSLeave) |
| 347 | ieee->LeisurePSLeave(ieee->dev); |
| 348 | /* notify AP to be in PS mode */ |
| 349 | rtllib_sta_ps_send_null_frame(ieee, 1); |
| 350 | rtllib_sta_ps_send_null_frame(ieee, 1); |
| 351 | |
| 352 | rtllib_stop_all_queues(ieee); |
| 353 | |
| 354 | if (ieee->data_hard_stop) |
| 355 | ieee->data_hard_stop(ieee->dev); |
| 356 | rtllib_stop_send_beacons(ieee); |
| 357 | ieee->state = RTLLIB_LINKED_SCANNING; |
| 358 | ieee->link_change(ieee->dev); |
| 359 | /* wait for ps packet to be kicked out successfully */ |
| 360 | msleep(50); |
| 361 | |
| 362 | if (ieee->ScanOperationBackupHandler) |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 363 | ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_BACKUP); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 364 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 365 | if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT && |
| 366 | ieee->pHTInfo->bCurBW40MHz) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 367 | b40M = 1; |
| 368 | chan_offset = ieee->pHTInfo->CurSTAExtChnlOffset; |
Larry Finger | 6e57911 | 2011-07-19 18:20:30 -0500 | [diff] [blame] | 369 | bandwidth = (enum ht_channel_width)ieee->pHTInfo->bCurBW40MHz; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 370 | RT_TRACE(COMP_DBG, "Scan in 40M, force to 20M first:%d, %d\n", |
| 371 | chan_offset, bandwidth); |
| 372 | ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, |
| 373 | HT_EXTCHNL_OFFSET_NO_EXT); |
| 374 | } |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 375 | |
| 376 | rtllib_start_scan_syncro(ieee, 0); |
| 377 | |
| 378 | if (b40M) { |
| 379 | RT_TRACE(COMP_DBG, "Scan in 20M, back to 40M\n"); |
| 380 | if (chan_offset == HT_EXTCHNL_OFFSET_UPPER) |
| 381 | ieee->set_chan(ieee->dev, chan + 2); |
| 382 | else if (chan_offset == HT_EXTCHNL_OFFSET_LOWER) |
| 383 | ieee->set_chan(ieee->dev, chan - 2); |
| 384 | else |
| 385 | ieee->set_chan(ieee->dev, chan); |
| 386 | ieee->SetBWModeHandler(ieee->dev, bandwidth, chan_offset); |
| 387 | } else { |
| 388 | ieee->set_chan(ieee->dev, chan); |
| 389 | } |
| 390 | |
| 391 | if (ieee->ScanOperationBackupHandler) |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 392 | ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_RESTORE); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 393 | |
| 394 | ieee->state = RTLLIB_LINKED; |
| 395 | ieee->link_change(ieee->dev); |
| 396 | |
| 397 | /* Notify AP that I wake up again */ |
| 398 | rtllib_sta_ps_send_null_frame(ieee, 0); |
| 399 | |
| 400 | if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 || |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 401 | ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 402 | ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 403 | ieee->LinkDetectInfo.NumRecvDataInPeriod = 1; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | if (ieee->data_hard_resume) |
| 407 | ieee->data_hard_resume(ieee->dev); |
| 408 | |
| 409 | if (ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER) |
| 410 | rtllib_start_send_beacons(ieee); |
| 411 | |
| 412 | rtllib_wake_all_queues(ieee); |
| 413 | |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 414 | out: |
| 415 | up(&ieee->wx_sem); |
| 416 | |
| 417 | } |
| 418 | |
| 419 | int rtllib_wx_set_scan(struct rtllib_device *ieee, struct iw_request_info *a, |
| 420 | union iwreq_data *wrqu, char *b) |
| 421 | { |
| 422 | int ret = 0; |
| 423 | |
| 424 | down(&ieee->wx_sem); |
| 425 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 426 | if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 427 | ret = -1; |
| 428 | goto out; |
| 429 | } |
| 430 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 431 | if (ieee->state == RTLLIB_LINKED) { |
Amitoj Kaur Chawla | 354605f | 2016-02-20 15:36:26 +0530 | [diff] [blame] | 432 | schedule_work(&ieee->wx_sync_scan_wq); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 433 | /* intentionally forget to up sem */ |
| 434 | return 0; |
| 435 | } |
| 436 | |
| 437 | out: |
| 438 | up(&ieee->wx_sem); |
| 439 | return ret; |
| 440 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 441 | EXPORT_SYMBOL(rtllib_wx_set_scan); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 442 | |
| 443 | int rtllib_wx_set_essid(struct rtllib_device *ieee, |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 444 | struct iw_request_info *a, |
| 445 | union iwreq_data *wrqu, char *extra) |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 446 | { |
| 447 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 448 | int ret = 0, len, i; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 449 | short proto_started; |
| 450 | unsigned long flags; |
| 451 | |
| 452 | rtllib_stop_scan_syncro(ieee); |
| 453 | down(&ieee->wx_sem); |
| 454 | |
| 455 | proto_started = ieee->proto_started; |
| 456 | |
Mateusz Kulikowski | a5c06ad | 2015-05-31 20:19:46 +0200 | [diff] [blame] | 457 | len = min_t(__u16, wrqu->essid.length, IW_ESSID_MAX_SIZE); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 458 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 459 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
| 460 | ret = -1; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 461 | goto out; |
| 462 | } |
| 463 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 464 | for (i = 0; i < len; i++) { |
| 465 | if (extra[i] < 0) { |
| 466 | ret = -1; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 467 | goto out; |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | if (proto_started) |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 472 | rtllib_stop_protocol(ieee, true); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 473 | |
| 474 | |
| 475 | /* this is just to be sure that the GET wx callback |
Justin P. Mattock | cd01712 | 2012-04-23 07:36:52 -0700 | [diff] [blame] | 476 | * has consistent infos. not needed otherwise |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 477 | */ |
| 478 | spin_lock_irqsave(&ieee->lock, flags); |
| 479 | |
| 480 | if (wrqu->essid.flags && wrqu->essid.length) { |
| 481 | strncpy(ieee->current_network.ssid, extra, len); |
| 482 | ieee->current_network.ssid_len = len; |
| 483 | ieee->cannot_notify = false; |
| 484 | ieee->ssid_set = 1; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 485 | } else { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 486 | ieee->ssid_set = 0; |
| 487 | ieee->current_network.ssid[0] = '\0'; |
| 488 | ieee->current_network.ssid_len = 0; |
| 489 | } |
| 490 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 491 | |
| 492 | if (proto_started) |
| 493 | rtllib_start_protocol(ieee); |
| 494 | out: |
| 495 | up(&ieee->wx_sem); |
| 496 | return ret; |
| 497 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 498 | EXPORT_SYMBOL(rtllib_wx_set_essid); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 499 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 500 | int rtllib_wx_get_mode(struct rtllib_device *ieee, struct iw_request_info *a, |
| 501 | union iwreq_data *wrqu, char *b) |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 502 | { |
| 503 | wrqu->mode = ieee->iw_mode; |
| 504 | return 0; |
| 505 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 506 | EXPORT_SYMBOL(rtllib_wx_get_mode); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 507 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 508 | int rtllib_wx_set_rawtx(struct rtllib_device *ieee, |
| 509 | struct iw_request_info *info, |
| 510 | union iwreq_data *wrqu, char *extra) |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 511 | { |
| 512 | |
| 513 | int *parms = (int *)extra; |
| 514 | int enable = (parms[0] > 0); |
| 515 | short prev = ieee->raw_tx; |
| 516 | |
| 517 | down(&ieee->wx_sem); |
| 518 | |
| 519 | if (enable) |
| 520 | ieee->raw_tx = 1; |
| 521 | else |
| 522 | ieee->raw_tx = 0; |
| 523 | |
Mateusz Kulikowski | d69d205 | 2015-03-17 00:00:52 +0100 | [diff] [blame] | 524 | netdev_info(ieee->dev, "raw TX is %s\n", |
| 525 | ieee->raw_tx ? "enabled" : "disabled"); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 526 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 527 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
| 528 | if (prev == 0 && ieee->raw_tx) { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 529 | if (ieee->data_hard_resume) |
| 530 | ieee->data_hard_resume(ieee->dev); |
| 531 | |
| 532 | netif_carrier_on(ieee->dev); |
| 533 | } |
| 534 | |
| 535 | if (prev && ieee->raw_tx == 1) |
| 536 | netif_carrier_off(ieee->dev); |
| 537 | } |
| 538 | |
| 539 | up(&ieee->wx_sem); |
| 540 | |
| 541 | return 0; |
| 542 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 543 | EXPORT_SYMBOL(rtllib_wx_set_rawtx); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 544 | |
| 545 | int rtllib_wx_get_name(struct rtllib_device *ieee, |
| 546 | struct iw_request_info *info, |
| 547 | union iwreq_data *wrqu, char *extra) |
| 548 | { |
| 549 | strcpy(wrqu->name, "802.11"); |
| 550 | |
| 551 | if (ieee->modulation & RTLLIB_CCK_MODULATION) |
| 552 | strcat(wrqu->name, "b"); |
| 553 | if (ieee->modulation & RTLLIB_OFDM_MODULATION) |
| 554 | strcat(wrqu->name, "g"); |
| 555 | if (ieee->mode & (IEEE_N_24G | IEEE_N_5G)) |
| 556 | strcat(wrqu->name, "n"); |
| 557 | return 0; |
| 558 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 559 | EXPORT_SYMBOL(rtllib_wx_get_name); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 560 | |
| 561 | |
| 562 | /* this is mostly stolen from hostap */ |
| 563 | int rtllib_wx_set_power(struct rtllib_device *ieee, |
| 564 | struct iw_request_info *info, |
| 565 | union iwreq_data *wrqu, char *extra) |
| 566 | { |
| 567 | int ret = 0; |
Mike McCormack | 4f6807e | 2011-07-11 08:56:20 +0900 | [diff] [blame] | 568 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 569 | if ((!ieee->sta_wake_up) || |
| 570 | (!ieee->enter_sleep_state) || |
| 571 | (!ieee->ps_is_queue_empty)) { |
Mateusz Kulikowski | 11e672c | 2015-05-31 20:19:26 +0200 | [diff] [blame] | 572 | netdev_warn(ieee->dev, |
| 573 | "%s(): PS mode is tried to be use but driver missed a callback\n", |
| 574 | __func__); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 575 | return -1; |
| 576 | } |
Mike McCormack | 4f6807e | 2011-07-11 08:56:20 +0900 | [diff] [blame] | 577 | |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 578 | down(&ieee->wx_sem); |
| 579 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 580 | if (wrqu->power.disabled) { |
| 581 | RT_TRACE(COMP_DBG, "===>%s(): power disable\n", __func__); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 582 | ieee->ps = RTLLIB_PS_DISABLED; |
| 583 | goto exit; |
| 584 | } |
| 585 | if (wrqu->power.flags & IW_POWER_TIMEOUT) { |
| 586 | ieee->ps_timeout = wrqu->power.value / 1000; |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 587 | RT_TRACE(COMP_DBG, "===>%s():ps_timeout is %d\n", __func__, |
| 588 | ieee->ps_timeout); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 589 | } |
| 590 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 591 | if (wrqu->power.flags & IW_POWER_PERIOD) |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 592 | ieee->ps_period = wrqu->power.value / 1000; |
| 593 | |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 594 | switch (wrqu->power.flags & IW_POWER_MODE) { |
| 595 | case IW_POWER_UNICAST_R: |
| 596 | ieee->ps = RTLLIB_PS_UNICAST; |
| 597 | break; |
| 598 | case IW_POWER_MULTICAST_R: |
| 599 | ieee->ps = RTLLIB_PS_MBCAST; |
| 600 | break; |
| 601 | case IW_POWER_ALL_R: |
| 602 | ieee->ps = RTLLIB_PS_UNICAST | RTLLIB_PS_MBCAST; |
| 603 | break; |
| 604 | |
| 605 | case IW_POWER_ON: |
| 606 | break; |
| 607 | |
| 608 | default: |
| 609 | ret = -EINVAL; |
| 610 | goto exit; |
| 611 | |
| 612 | } |
| 613 | exit: |
| 614 | up(&ieee->wx_sem); |
| 615 | return ret; |
| 616 | |
| 617 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 618 | EXPORT_SYMBOL(rtllib_wx_set_power); |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 619 | |
| 620 | /* this is stolen from hostap */ |
| 621 | int rtllib_wx_get_power(struct rtllib_device *ieee, |
| 622 | struct iw_request_info *info, |
| 623 | union iwreq_data *wrqu, char *extra) |
| 624 | { |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 625 | down(&ieee->wx_sem); |
| 626 | |
| 627 | if (ieee->ps == RTLLIB_PS_DISABLED) { |
| 628 | wrqu->power.disabled = 1; |
| 629 | goto exit; |
| 630 | } |
| 631 | |
| 632 | wrqu->power.disabled = 0; |
| 633 | |
| 634 | if ((wrqu->power.flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { |
| 635 | wrqu->power.flags = IW_POWER_TIMEOUT; |
| 636 | wrqu->power.value = ieee->ps_timeout * 1000; |
| 637 | } else { |
| 638 | wrqu->power.flags = IW_POWER_PERIOD; |
| 639 | wrqu->power.value = ieee->ps_period * 1000; |
| 640 | } |
| 641 | |
Larry Finger | a44be77 | 2011-08-25 11:48:27 -0500 | [diff] [blame] | 642 | if ((ieee->ps & (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST)) == |
| 643 | (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST)) |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 644 | wrqu->power.flags |= IW_POWER_ALL_R; |
| 645 | else if (ieee->ps & RTLLIB_PS_MBCAST) |
| 646 | wrqu->power.flags |= IW_POWER_MULTICAST_R; |
| 647 | else |
| 648 | wrqu->power.flags |= IW_POWER_UNICAST_R; |
| 649 | |
| 650 | exit: |
| 651 | up(&ieee->wx_sem); |
Peter Senna Tschudin | 4764ca9 | 2014-05-26 16:08:50 +0200 | [diff] [blame] | 652 | return 0; |
Larry Finger | 94a7994 | 2011-08-23 19:00:42 -0500 | [diff] [blame] | 653 | |
| 654 | } |
Sean MacLennan | 3b28499 | 2011-11-28 20:20:26 -0500 | [diff] [blame] | 655 | EXPORT_SYMBOL(rtllib_wx_get_power); |