Commit | Line | Data |
---|---|---|
8973a6e7 RD |
1 | /* |
2 | * This file contains the major functions in WLAN | |
3 | * driver. It includes init, exit, open, close and main | |
4 | * thread etc.. | |
5 | */ | |
876c9d3a | 6 | |
0e4e06ae JP |
7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
8 | ||
ac5c24e9 | 9 | #include <linux/module.h> |
876c9d3a | 10 | #include <linux/delay.h> |
876c9d3a | 11 | #include <linux/etherdevice.h> |
a6b7a407 | 12 | #include <linux/hardirq.h> |
876c9d3a MT |
13 | #include <linux/netdevice.h> |
14 | #include <linux/if_arp.h> | |
fe336150 | 15 | #include <linux/kthread.h> |
7919b89c | 16 | #include <linux/kfifo.h> |
5a0e3ad6 | 17 | #include <linux/slab.h> |
ff9fc791 | 18 | #include <net/cfg80211.h> |
876c9d3a MT |
19 | |
20 | #include "host.h" | |
876c9d3a MT |
21 | #include "decl.h" |
22 | #include "dev.h" | |
ff9fc791 | 23 | #include "cfg.h" |
876c9d3a | 24 | #include "debugfs.h" |
6e66f03f | 25 | #include "cmd.h" |
49fee692 | 26 | #include "mesh.h" |
876c9d3a | 27 | |
7856a541 | 28 | #define DRIVER_RELEASE_VERSION "323.p0" |
10078321 | 29 | const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION |
3ce40232 DW |
30 | #ifdef DEBUG |
31 | "-dbg" | |
32 | #endif | |
33 | ""; | |
34 | ||
a46c6410 HS |
35 | |
36 | /* Module parameters */ | |
10078321 HS |
37 | unsigned int lbs_debug; |
38 | EXPORT_SYMBOL_GPL(lbs_debug); | |
39 | module_param_named(libertas_debug, lbs_debug, int, 0644); | |
a46c6410 | 40 | |
6bdbdbf4 SS |
41 | unsigned int lbs_disablemesh; |
42 | EXPORT_SYMBOL_GPL(lbs_disablemesh); | |
43 | module_param_named(libertas_disablemesh, lbs_disablemesh, int, 0644); | |
44 | ||
a46c6410 | 45 | |
8973a6e7 RD |
46 | /* |
47 | * This global structure is used to send the confirm_sleep command as | |
48 | * fast as possible down to the firmware. | |
49 | */ | |
f539f2ef HS |
50 | struct cmd_confirm_sleep confirm_sleep; |
51 | ||
52 | ||
8973a6e7 | 53 | /* |
8c512765 | 54 | * the table to keep region code |
876c9d3a | 55 | */ |
10078321 | 56 | u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
8c512765 | 57 | { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; |
876c9d3a | 58 | |
8973a6e7 | 59 | /* |
8c512765 DW |
60 | * FW rate table. FW refers to rates by their index in this table, not by the |
61 | * rate value itself. Values of 0x00 are | |
62 | * reserved positions. | |
876c9d3a | 63 | */ |
8c512765 DW |
64 | static u8 fw_data_rates[MAX_RATES] = |
65 | { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, | |
66 | 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 | |
67 | }; | |
876c9d3a | 68 | |
876c9d3a | 69 | /** |
8973a6e7 | 70 | * lbs_fw_index_to_data_rate - use index to get the data rate |
8c512765 | 71 | * |
8973a6e7 RD |
72 | * @idx: The index of data rate |
73 | * returns: data rate or 0 | |
876c9d3a | 74 | */ |
10078321 | 75 | u32 lbs_fw_index_to_data_rate(u8 idx) |
8c512765 DW |
76 | { |
77 | if (idx >= sizeof(fw_data_rates)) | |
78 | idx = 0; | |
79 | return fw_data_rates[idx]; | |
80 | } | |
81 | ||
82 | /** | |
8973a6e7 | 83 | * lbs_data_rate_to_fw_index - use rate to get the index |
8c512765 | 84 | * |
8973a6e7 RD |
85 | * @rate: data rate |
86 | * returns: index or 0 | |
8c512765 | 87 | */ |
10078321 | 88 | u8 lbs_data_rate_to_fw_index(u32 rate) |
8c512765 DW |
89 | { |
90 | u8 i; | |
91 | ||
92 | if (!rate) | |
93 | return 0; | |
94 | ||
95 | for (i = 0; i < sizeof(fw_data_rates); i++) { | |
96 | if (rate == fw_data_rates[i]) | |
97 | return i; | |
98 | } | |
99 | return 0; | |
100 | } | |
876c9d3a | 101 | |
5c1381ac DD |
102 | int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type) |
103 | { | |
104 | int ret = 0; | |
105 | ||
106 | switch (type) { | |
107 | case NL80211_IFTYPE_MONITOR: | |
108 | ret = lbs_set_monitor_mode(priv, 1); | |
109 | break; | |
110 | case NL80211_IFTYPE_STATION: | |
111 | if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) | |
112 | ret = lbs_set_monitor_mode(priv, 0); | |
113 | if (!ret) | |
114 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1); | |
115 | break; | |
116 | case NL80211_IFTYPE_ADHOC: | |
117 | if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) | |
118 | ret = lbs_set_monitor_mode(priv, 0); | |
119 | if (!ret) | |
120 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2); | |
121 | break; | |
122 | default: | |
123 | ret = -ENOTSUPP; | |
124 | } | |
125 | return ret; | |
126 | } | |
127 | ||
d2e7b342 DD |
128 | int lbs_start_iface(struct lbs_private *priv) |
129 | { | |
130 | struct cmd_ds_802_11_mac_address cmd; | |
131 | int ret; | |
132 | ||
133 | if (priv->power_restore) { | |
134 | ret = priv->power_restore(priv); | |
135 | if (ret) | |
136 | return ret; | |
137 | } | |
138 | ||
139 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
140 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
141 | memcpy(cmd.macadd, priv->current_addr, ETH_ALEN); | |
142 | ||
143 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); | |
144 | if (ret) { | |
145 | lbs_deb_net("set MAC address failed\n"); | |
146 | goto err; | |
147 | } | |
148 | ||
5c1381ac DD |
149 | ret = lbs_set_iface_type(priv, priv->wdev->iftype); |
150 | if (ret) { | |
151 | lbs_deb_net("set iface type failed\n"); | |
152 | goto err; | |
153 | } | |
154 | ||
20d2ebe5 DD |
155 | ret = lbs_set_11d_domain_info(priv); |
156 | if (ret) { | |
157 | lbs_deb_net("set 11d domain info failed\n"); | |
158 | goto err; | |
159 | } | |
160 | ||
d2e7b342 DD |
161 | lbs_update_channel(priv); |
162 | ||
163 | priv->iface_running = true; | |
164 | return 0; | |
165 | ||
166 | err: | |
167 | if (priv->power_save) | |
168 | priv->power_save(priv); | |
169 | return ret; | |
170 | } | |
6fb53252 | 171 | |
23a397ac | 172 | /** |
8973a6e7 | 173 | * lbs_dev_open - open the ethX interface |
876c9d3a | 174 | * |
8973a6e7 RD |
175 | * @dev: A pointer to &net_device structure |
176 | * returns: 0 or -EBUSY if monitor mode active | |
876c9d3a | 177 | */ |
10078321 | 178 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 179 | { |
ab65f649 | 180 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 181 | int ret = 0; |
876c9d3a | 182 | |
61d30020 | 183 | lbs_deb_enter(LBS_DEB_NET); |
d2e7b342 DD |
184 | if (!priv->iface_running) { |
185 | ret = lbs_start_iface(priv); | |
186 | if (ret) | |
187 | goto out; | |
188 | } | |
61d30020 | 189 | |
8552855f | 190 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 191 | |
d2e7b342 | 192 | netif_carrier_off(dev); |
876c9d3a | 193 | |
8552855f DW |
194 | if (!priv->tx_pending_len) |
195 | netif_wake_queue(dev); | |
876c9d3a | 196 | |
8552855f | 197 | spin_unlock_irq(&priv->driver_lock); |
d2e7b342 DD |
198 | |
199 | out: | |
61d30020 | 200 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 201 | return ret; |
876c9d3a MT |
202 | } |
203 | ||
d2e7b342 DD |
204 | static bool lbs_command_queue_empty(struct lbs_private *priv) |
205 | { | |
206 | unsigned long flags; | |
207 | bool ret; | |
208 | spin_lock_irqsave(&priv->driver_lock, flags); | |
209 | ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq); | |
210 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
211 | return ret; | |
212 | } | |
213 | ||
214 | int lbs_stop_iface(struct lbs_private *priv) | |
215 | { | |
216 | unsigned long flags; | |
217 | int ret = 0; | |
218 | ||
219 | lbs_deb_enter(LBS_DEB_MAIN); | |
220 | ||
221 | spin_lock_irqsave(&priv->driver_lock, flags); | |
222 | priv->iface_running = false; | |
223 | kfree_skb(priv->currenttxskb); | |
224 | priv->currenttxskb = NULL; | |
225 | priv->tx_pending_len = 0; | |
226 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
227 | ||
228 | cancel_work_sync(&priv->mcast_work); | |
8f641d93 | 229 | del_timer_sync(&priv->tx_lockup_timer); |
d2e7b342 DD |
230 | |
231 | /* Disable command processing, and wait for all commands to complete */ | |
232 | lbs_deb_main("waiting for commands to complete\n"); | |
233 | wait_event(priv->waitq, lbs_command_queue_empty(priv)); | |
234 | lbs_deb_main("all commands completed\n"); | |
235 | ||
236 | if (priv->power_save) | |
237 | ret = priv->power_save(priv); | |
238 | ||
239 | lbs_deb_leave(LBS_DEB_MAIN); | |
240 | return ret; | |
241 | } | |
242 | ||
876c9d3a | 243 | /** |
8973a6e7 | 244 | * lbs_eth_stop - close the ethX interface |
876c9d3a | 245 | * |
8973a6e7 RD |
246 | * @dev: A pointer to &net_device structure |
247 | * returns: 0 | |
876c9d3a | 248 | */ |
8552855f | 249 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 250 | { |
ab65f649 | 251 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 252 | |
61d30020 | 253 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 254 | |
d2e7b342 DD |
255 | if (priv->connect_status == LBS_CONNECTED) |
256 | lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING); | |
257 | ||
61d30020 | 258 | spin_lock_irq(&priv->driver_lock); |
8552855f | 259 | netif_stop_queue(dev); |
8552855f | 260 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 261 | |
d2e7b342 | 262 | lbs_update_mcast(priv); |
2e30168b | 263 | cancel_delayed_work_sync(&priv->scan_work); |
3209e061 AS |
264 | if (priv->scan_req) |
265 | lbs_scan_done(priv); | |
75bf45a7 | 266 | |
d2e7b342 DD |
267 | netif_carrier_off(priv->dev); |
268 | ||
269 | if (!lbs_iface_active(priv)) | |
270 | lbs_stop_iface(priv); | |
271 | ||
61d30020 | 272 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 273 | return 0; |
876c9d3a MT |
274 | } |
275 | ||
e775ed7c DW |
276 | void lbs_host_to_card_done(struct lbs_private *priv) |
277 | { | |
a63b22bb DW |
278 | unsigned long flags; |
279 | ||
61d30020 HS |
280 | lbs_deb_enter(LBS_DEB_THREAD); |
281 | ||
a63b22bb | 282 | spin_lock_irqsave(&priv->driver_lock, flags); |
8f641d93 | 283 | del_timer(&priv->tx_lockup_timer); |
e775ed7c DW |
284 | |
285 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
286 | ||
287 | /* Wake main thread if commands are pending */ | |
49125454 AK |
288 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
289 | if (!priv->wakeup_dev_required) | |
d2e7b342 | 290 | wake_up(&priv->waitq); |
49125454 | 291 | } |
e775ed7c | 292 | |
a63b22bb | 293 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 294 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
295 | } |
296 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
297 | ||
e0e42da3 | 298 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
299 | { |
300 | int ret = 0; | |
ab65f649 | 301 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a MT |
302 | struct sockaddr *phwaddr = addr; |
303 | ||
9012b28a | 304 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 305 | |
d2e7b342 DD |
306 | /* |
307 | * Can only set MAC address when all interfaces are down, to be written | |
308 | * to the hardware when one of them is brought up. | |
309 | */ | |
310 | if (lbs_iface_active(priv)) | |
311 | return -EBUSY; | |
312 | ||
0a0d08ac | 313 | /* In case it was called from the mesh device */ |
2af9f039 | 314 | dev = priv->dev; |
0a0d08ac | 315 | |
2af9f039 HS |
316 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
317 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 318 | if (priv->mesh_dev) |
2af9f039 | 319 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a | 320 | |
9012b28a | 321 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
322 | return ret; |
323 | } | |
324 | ||
75bf45a7 DW |
325 | |
326 | static inline int mac_in_list(unsigned char *list, int list_len, | |
327 | unsigned char *mac) | |
876c9d3a | 328 | { |
75bf45a7 DW |
329 | while (list_len) { |
330 | if (!memcmp(list, mac, ETH_ALEN)) | |
331 | return 1; | |
332 | list += ETH_ALEN; | |
333 | list_len--; | |
334 | } | |
335 | return 0; | |
336 | } | |
337 | ||
876c9d3a | 338 | |
75bf45a7 DW |
339 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
340 | struct net_device *dev, int nr_addrs) | |
341 | { | |
342 | int i = nr_addrs; | |
22bedad3 | 343 | struct netdev_hw_addr *ha; |
655ffee2 | 344 | int cnt; |
75bf45a7 DW |
345 | |
346 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
347 | return nr_addrs; | |
348 | ||
b9e40857 | 349 | netif_addr_lock_bh(dev); |
655ffee2 | 350 | cnt = netdev_mc_count(dev); |
22bedad3 JP |
351 | netdev_for_each_mc_addr(ha, dev) { |
352 | if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { | |
e174961c | 353 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
22bedad3 | 354 | ha->addr); |
655ffee2 | 355 | cnt--; |
75bf45a7 DW |
356 | continue; |
357 | } | |
876c9d3a | 358 | |
75bf45a7 DW |
359 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
360 | break; | |
22bedad3 | 361 | memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); |
e174961c | 362 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
22bedad3 | 363 | ha->addr); |
75bf45a7 | 364 | i++; |
655ffee2 | 365 | cnt--; |
876c9d3a | 366 | } |
b9e40857 | 367 | netif_addr_unlock_bh(dev); |
655ffee2 | 368 | if (cnt) |
75bf45a7 DW |
369 | return -EOVERFLOW; |
370 | ||
876c9d3a | 371 | return i; |
876c9d3a MT |
372 | } |
373 | ||
d2e7b342 | 374 | void lbs_update_mcast(struct lbs_private *priv) |
876c9d3a | 375 | { |
75bf45a7 | 376 | struct cmd_ds_mac_multicast_adr mcast_cmd; |
d2e7b342 | 377 | int dev_flags = 0; |
75bf45a7 DW |
378 | int nr_addrs; |
379 | int old_mac_control = priv->mac_control; | |
876c9d3a | 380 | |
9012b28a | 381 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 382 | |
d2e7b342 DD |
383 | if (netif_running(priv->dev)) |
384 | dev_flags |= priv->dev->flags; | |
385 | if (priv->mesh_dev && netif_running(priv->mesh_dev)) | |
75bf45a7 DW |
386 | dev_flags |= priv->mesh_dev->flags; |
387 | ||
388 | if (dev_flags & IFF_PROMISC) { | |
389 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
390 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
391 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
392 | goto out_set_mac_control; | |
393 | } else if (dev_flags & IFF_ALLMULTI) { | |
394 | do_allmulti: | |
395 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
396 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
397 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
398 | goto out_set_mac_control; | |
876c9d3a MT |
399 | } |
400 | ||
75bf45a7 DW |
401 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
402 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
403 | if (nr_addrs >= 0 && priv->mesh_dev) | |
404 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
405 | if (nr_addrs < 0) | |
406 | goto do_allmulti; | |
407 | ||
408 | if (nr_addrs) { | |
409 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
410 | maclist[6*nr_addrs]); | |
411 | ||
412 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
413 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
414 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
415 | ||
416 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
417 | ||
418 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
419 | } else | |
420 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
421 | ||
422 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
423 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
424 | out_set_mac_control: | |
d9e9778c HS |
425 | if (priv->mac_control != old_mac_control) |
426 | lbs_set_mac_control(priv); | |
876c9d3a | 427 | |
9012b28a | 428 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
429 | } |
430 | ||
d2e7b342 DD |
431 | static void lbs_set_mcast_worker(struct work_struct *work) |
432 | { | |
433 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); | |
434 | lbs_update_mcast(priv); | |
435 | } | |
436 | ||
e0e42da3 | 437 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 438 | { |
ab65f649 | 439 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
440 | |
441 | schedule_work(&priv->mcast_work); | |
442 | } | |
443 | ||
876c9d3a | 444 | /** |
8973a6e7 | 445 | * lbs_thread - handles the major jobs in the LBS driver. |
9012b28a HS |
446 | * It handles all events generated by firmware, RX data received |
447 | * from firmware and TX data sent from kernel. | |
876c9d3a | 448 | * |
8973a6e7 RD |
449 | * @data: A pointer to &lbs_thread structure |
450 | * returns: 0 | |
876c9d3a | 451 | */ |
10078321 | 452 | static int lbs_thread(void *data) |
876c9d3a | 453 | { |
fe336150 | 454 | struct net_device *dev = data; |
ab65f649 | 455 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 456 | wait_queue_t wait; |
876c9d3a | 457 | |
9012b28a | 458 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 459 | |
876c9d3a MT |
460 | init_waitqueue_entry(&wait, current); |
461 | ||
462 | for (;;) { | |
b8d40bc9 | 463 | int shouldsleep; |
7919b89c | 464 | u8 resp_idx; |
b8d40bc9 | 465 | |
7919b89c HS |
466 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
467 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 468 | |
fe336150 | 469 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 470 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 471 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 472 | |
d9f88705 | 473 | if (kthread_should_stop()) |
b8d40bc9 | 474 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
475 | else if (priv->surpriseremoved) |
476 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
477 | else if (priv->psstate == PS_STATE_SLEEP) |
478 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
479 | else if (priv->cmd_timed_out) |
480 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
481 | else if (!priv->fw_ready) |
482 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
483 | else if (priv->dnld_sent) |
484 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
485 | else if (priv->tx_pending_len > 0) |
486 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
487 | else if (priv->resp_len[priv->resp_idx]) |
488 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
489 | else if (priv->cur_cmd) |
490 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
491 | else if (!list_empty(&priv->cmdpendingq) && |
492 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 493 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 494 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 495 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
496 | else |
497 | shouldsleep = 1; /* No command */ | |
498 | ||
499 | if (shouldsleep) { | |
7919b89c | 500 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 501 | "psmode %d, psstate %d\n", |
7919b89c HS |
502 | priv->connect_status, |
503 | priv->psmode, priv->psstate); | |
aa21c004 | 504 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
505 | schedule(); |
506 | } else | |
aa21c004 | 507 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 508 | |
7919b89c HS |
509 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
510 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
511 | |
512 | set_current_state(TASK_RUNNING); | |
fe336150 | 513 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 514 | |
7919b89c HS |
515 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
516 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 517 | |
d9f88705 | 518 | if (kthread_should_stop()) { |
7919b89c | 519 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
520 | break; |
521 | } | |
522 | ||
d9f88705 DW |
523 | if (priv->surpriseremoved) { |
524 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
525 | continue; | |
526 | } | |
876c9d3a | 527 | |
7919b89c HS |
528 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
529 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 530 | |
7919b89c | 531 | /* Process any pending command response */ |
a01f5450 | 532 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
533 | resp_idx = priv->resp_idx; |
534 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 535 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
536 | lbs_process_command_response(priv, |
537 | priv->resp_buf[resp_idx], | |
538 | priv->resp_len[resp_idx]); | |
aa21c004 | 539 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 540 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 541 | } |
7919b89c | 542 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 543 | |
49125454 AK |
544 | /* Process hardware events, e.g. card removed, link lost */ |
545 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 546 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 547 | u32 event; |
7acd72eb | 548 | |
9842c38e SS |
549 | if (kfifo_out(&priv->event_fifo, |
550 | (unsigned char *) &event, sizeof(event)) != | |
551 | sizeof(event)) | |
552 | break; | |
49125454 AK |
553 | spin_unlock_irq(&priv->driver_lock); |
554 | lbs_process_event(priv, event); | |
555 | spin_lock_irq(&priv->driver_lock); | |
556 | } | |
557 | spin_unlock_irq(&priv->driver_lock); | |
558 | ||
559 | if (priv->wakeup_dev_required) { | |
560 | lbs_deb_thread("Waking up device...\n"); | |
561 | /* Wake up device */ | |
562 | if (priv->exit_deep_sleep(priv)) | |
563 | lbs_deb_thread("Wakeup device failed\n"); | |
564 | continue; | |
565 | } | |
566 | ||
7919b89c | 567 | /* command timeout stuff */ |
2a345099 DW |
568 | if (priv->cmd_timed_out && priv->cur_cmd) { |
569 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
570 | ||
f3a57fd1 JP |
571 | netdev_info(dev, "Timeout submitting command 0x%04x\n", |
572 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
40e6fa82 | 573 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); |
9d5d496c DD |
574 | |
575 | /* Reset card, but only when it isn't in the process | |
576 | * of being shutdown anyway. */ | |
577 | if (!dev->dismantle && priv->reset_card) | |
40e6fa82 | 578 | priv->reset_card(priv); |
2a345099 DW |
579 | } |
580 | priv->cmd_timed_out = 0; | |
581 | ||
b15152a4 DW |
582 | if (!priv->fw_ready) |
583 | continue; | |
584 | ||
876c9d3a | 585 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
586 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
587 | !priv->dnld_sent && !priv->cur_cmd) { | |
588 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
589 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
590 | "dnld_sent %d, cur_cmd %p\n", | |
591 | priv->currenttxskb, priv->dnld_sent, | |
592 | priv->cur_cmd); | |
59f3e4bf | 593 | |
d4ff0ef6 | 594 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
595 | } else { |
596 | /* workaround for firmware sending | |
597 | * deauth/linkloss event immediately | |
598 | * after sleep request; remove this | |
599 | * after firmware fixes it | |
600 | */ | |
aa21c004 | 601 | priv->psstate = PS_STATE_AWAKE; |
f3a57fd1 JP |
602 | netdev_alert(dev, |
603 | "ignore PS_SleepConfirm in non-connected state\n"); | |
876c9d3a MT |
604 | } |
605 | } | |
606 | ||
607 | /* The PS state is changed during processing of Sleep Request | |
608 | * event above | |
609 | */ | |
aa21c004 DW |
610 | if ((priv->psstate == PS_STATE_SLEEP) || |
611 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
612 | continue; |
613 | ||
49125454 AK |
614 | if (priv->is_deep_sleep) |
615 | continue; | |
616 | ||
876c9d3a | 617 | /* Execute the next command */ |
aa21c004 | 618 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 619 | lbs_execute_next_command(priv); |
876c9d3a | 620 | |
2eb188a1 DW |
621 | spin_lock_irq(&priv->driver_lock); |
622 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
623 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
624 | priv->tx_pending_buf, | |
625 | priv->tx_pending_len); | |
626 | if (ret) { | |
627 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
628 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
8f641d93 DD |
629 | } else { |
630 | mod_timer(&priv->tx_lockup_timer, | |
631 | jiffies + (HZ * 5)); | |
2eb188a1 DW |
632 | } |
633 | priv->tx_pending_len = 0; | |
634 | if (!priv->currenttxskb) { | |
635 | /* We can wake the queues immediately if we aren't | |
636 | waiting for TX feedback */ | |
637 | if (priv->connect_status == LBS_CONNECTED) | |
638 | netif_wake_queue(priv->dev); | |
639 | if (priv->mesh_dev && | |
d9319986 | 640 | netif_running(priv->mesh_dev)) |
2eb188a1 DW |
641 | netif_wake_queue(priv->mesh_dev); |
642 | } | |
643 | } | |
644 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
645 | } |
646 | ||
aa21c004 | 647 | del_timer(&priv->command_timer); |
8f641d93 | 648 | del_timer(&priv->tx_lockup_timer); |
49125454 | 649 | del_timer(&priv->auto_deepsleep_timer); |
876c9d3a | 650 | |
9012b28a | 651 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
652 | return 0; |
653 | } | |
654 | ||
75abde4d | 655 | /** |
8973a6e7 RD |
656 | * lbs_setup_firmware - gets the HW spec from the firmware and sets |
657 | * some basic parameters | |
75abde4d | 658 | * |
8973a6e7 RD |
659 | * @priv: A pointer to &struct lbs_private structure |
660 | * returns: 0 or -1 | |
75abde4d VK |
661 | */ |
662 | static int lbs_setup_firmware(struct lbs_private *priv) | |
663 | { | |
664 | int ret = -1; | |
665 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; | |
666 | ||
667 | lbs_deb_enter(LBS_DEB_FW); | |
668 | ||
669 | /* Read MAC address from firmware */ | |
670 | memset(priv->current_addr, 0xff, ETH_ALEN); | |
671 | ret = lbs_update_hw_spec(priv); | |
672 | if (ret) | |
673 | goto done; | |
674 | ||
675 | /* Read power levels if available */ | |
676 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
677 | if (ret == 0) { | |
678 | priv->txpower_cur = curlevel; | |
679 | priv->txpower_min = minlevel; | |
680 | priv->txpower_max = maxlevel; | |
681 | } | |
682 | ||
683 | /* Send cmd to FW to enable 11D function */ | |
684 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1); | |
871fc09f DD |
685 | if (ret) |
686 | goto done; | |
75abde4d | 687 | |
871fc09f | 688 | ret = lbs_set_mac_control_sync(priv); |
75abde4d VK |
689 | done: |
690 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
691 | return ret; | |
692 | } | |
693 | ||
ab25ecae DW |
694 | int lbs_suspend(struct lbs_private *priv) |
695 | { | |
ab25ecae DW |
696 | int ret; |
697 | ||
61d30020 HS |
698 | lbs_deb_enter(LBS_DEB_FW); |
699 | ||
66fceb69 AK |
700 | if (priv->is_deep_sleep) { |
701 | ret = lbs_set_deep_sleep(priv, 0); | |
702 | if (ret) { | |
f3a57fd1 JP |
703 | netdev_err(priv->dev, |
704 | "deep sleep cancellation failed: %d\n", ret); | |
66fceb69 AK |
705 | return ret; |
706 | } | |
707 | priv->deep_sleep_required = 1; | |
506e9025 DW |
708 | } |
709 | ||
1311843c | 710 | ret = lbs_set_host_sleep(priv, 1); |
7e226272 | 711 | |
66fceb69 AK |
712 | netif_device_detach(priv->dev); |
713 | if (priv->mesh_dev) | |
714 | netif_device_detach(priv->mesh_dev); | |
ab25ecae | 715 | |
61d30020 | 716 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
717 | return ret; |
718 | } | |
719 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
720 | ||
66fceb69 | 721 | int lbs_resume(struct lbs_private *priv) |
ab25ecae | 722 | { |
66fceb69 | 723 | int ret; |
61d30020 | 724 | |
66fceb69 | 725 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae | 726 | |
1311843c | 727 | ret = lbs_set_host_sleep(priv, 0); |
ab25ecae DW |
728 | |
729 | netif_device_attach(priv->dev); | |
730 | if (priv->mesh_dev) | |
731 | netif_device_attach(priv->mesh_dev); | |
732 | ||
66fceb69 AK |
733 | if (priv->deep_sleep_required) { |
734 | priv->deep_sleep_required = 0; | |
735 | ret = lbs_set_deep_sleep(priv, 1); | |
736 | if (ret) | |
f3a57fd1 JP |
737 | netdev_err(priv->dev, |
738 | "deep sleep activation failed: %d\n", ret); | |
66fceb69 AK |
739 | } |
740 | ||
75abde4d VK |
741 | if (priv->setup_fw_on_resume) |
742 | ret = lbs_setup_firmware(priv); | |
87c8c72d | 743 | |
1df4e8fe HS |
744 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
745 | return ret; | |
746 | } | |
75abde4d | 747 | EXPORT_SYMBOL_GPL(lbs_resume); |
1df4e8fe | 748 | |
1df4e8fe | 749 | /** |
8973a6e7 RD |
750 | * lbs_cmd_timeout_handler - handles the timeout of command sending. |
751 | * It will re-send the same command again. | |
752 | * | |
753 | * @data: &struct lbs_private pointer | |
1df4e8fe | 754 | */ |
40e6fa82 | 755 | static void lbs_cmd_timeout_handler(unsigned long data) |
1df4e8fe | 756 | { |
69f9032d | 757 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
758 | unsigned long flags; |
759 | ||
61d30020 | 760 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 761 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 762 | |
57962f0b | 763 | if (!priv->cur_cmd) |
2a345099 | 764 | goto out; |
1df4e8fe | 765 | |
f3a57fd1 JP |
766 | netdev_info(priv->dev, "command 0x%04x timed out\n", |
767 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 768 | |
2a345099 | 769 | priv->cmd_timed_out = 1; |
df90d843 DD |
770 | |
771 | /* | |
772 | * If the device didn't even acknowledge the command, reset the state | |
773 | * so that we don't block all future commands due to this one timeout. | |
774 | */ | |
775 | if (priv->dnld_sent == DNLD_CMD_SENT) | |
776 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
777 | ||
d2e7b342 | 778 | wake_up(&priv->waitq); |
61d30020 | 779 | out: |
2a345099 | 780 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 781 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
782 | } |
783 | ||
8f641d93 DD |
784 | /** |
785 | * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames | |
786 | * to the hardware. This is known to frequently happen with SD8686 when | |
787 | * waking up after a Wake-on-WLAN-triggered resume. | |
788 | * | |
789 | * @data: &struct lbs_private pointer | |
790 | */ | |
791 | static void lbs_tx_lockup_handler(unsigned long data) | |
792 | { | |
793 | struct lbs_private *priv = (struct lbs_private *)data; | |
794 | unsigned long flags; | |
795 | ||
796 | lbs_deb_enter(LBS_DEB_TX); | |
797 | spin_lock_irqsave(&priv->driver_lock, flags); | |
798 | ||
799 | netdev_info(priv->dev, "TX lockup detected\n"); | |
800 | if (priv->reset_card) | |
801 | priv->reset_card(priv); | |
802 | ||
803 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
804 | wake_up_interruptible(&priv->waitq); | |
805 | ||
806 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
807 | lbs_deb_leave(LBS_DEB_TX); | |
808 | } | |
809 | ||
49125454 | 810 | /** |
8973a6e7 RD |
811 | * auto_deepsleep_timer_fn - put the device back to deep sleep mode when |
812 | * timer expires and no activity (command, event, data etc.) is detected. | |
813 | * @data: &struct lbs_private pointer | |
814 | * returns: N/A | |
49125454 AK |
815 | */ |
816 | static void auto_deepsleep_timer_fn(unsigned long data) | |
817 | { | |
818 | struct lbs_private *priv = (struct lbs_private *)data; | |
49125454 AK |
819 | |
820 | lbs_deb_enter(LBS_DEB_CMD); | |
821 | ||
822 | if (priv->is_activity_detected) { | |
823 | priv->is_activity_detected = 0; | |
824 | } else { | |
825 | if (priv->is_auto_deep_sleep_enabled && | |
53800f5d DW |
826 | (!priv->wakeup_dev_required) && |
827 | (priv->connect_status != LBS_CONNECTED)) { | |
828 | struct cmd_header cmd; | |
829 | ||
49125454 | 830 | lbs_deb_main("Entering auto deep sleep mode...\n"); |
53800f5d DW |
831 | memset(&cmd, 0, sizeof(cmd)); |
832 | cmd.size = cpu_to_le16(sizeof(cmd)); | |
833 | lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd, | |
834 | sizeof(cmd)); | |
49125454 AK |
835 | } |
836 | } | |
837 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
838 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
839 | lbs_deb_leave(LBS_DEB_CMD); | |
840 | } | |
841 | ||
842 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
843 | { | |
844 | lbs_deb_enter(LBS_DEB_SDIO); | |
845 | ||
846 | priv->is_auto_deep_sleep_enabled = 1; | |
847 | if (priv->is_deep_sleep) | |
848 | priv->wakeup_dev_required = 1; | |
849 | mod_timer(&priv->auto_deepsleep_timer , | |
850 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
851 | ||
852 | lbs_deb_leave(LBS_DEB_SDIO); | |
853 | return 0; | |
854 | } | |
855 | ||
856 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
857 | { | |
858 | lbs_deb_enter(LBS_DEB_SDIO); | |
859 | ||
860 | priv->is_auto_deep_sleep_enabled = 0; | |
861 | priv->auto_deep_sleep_timeout = 0; | |
862 | del_timer(&priv->auto_deepsleep_timer); | |
863 | ||
864 | lbs_deb_leave(LBS_DEB_SDIO); | |
865 | return 0; | |
866 | } | |
867 | ||
69f9032d | 868 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 869 | { |
e86dc1ca | 870 | int ret; |
1df4e8fe | 871 | |
61d30020 HS |
872 | lbs_deb_enter(LBS_DEB_MAIN); |
873 | ||
aa21c004 | 874 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 875 | |
aa21c004 | 876 | priv->connect_status = LBS_DISCONNECTED; |
c14951fe | 877 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 878 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 879 | priv->radio_on = 1; |
aa21c004 DW |
880 | priv->psmode = LBS802_11POWERMODECAM; |
881 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
882 | priv->is_deep_sleep = 0; |
883 | priv->is_auto_deep_sleep_enabled = 0; | |
66fceb69 | 884 | priv->deep_sleep_required = 0; |
49125454 AK |
885 | priv->wakeup_dev_required = 0; |
886 | init_waitqueue_head(&priv->ds_awake_q); | |
cc026819 | 887 | init_waitqueue_head(&priv->scan_q); |
921ca03c | 888 | priv->authtype_auto = 1; |
66fceb69 AK |
889 | priv->is_host_sleep_configured = 0; |
890 | priv->is_host_sleep_activated = 0; | |
891 | init_waitqueue_head(&priv->host_sleep_q); | |
534111c7 | 892 | init_waitqueue_head(&priv->fw_waitq); |
aa21c004 | 893 | mutex_init(&priv->lock); |
1df4e8fe | 894 | |
40e6fa82 | 895 | setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, |
61d30020 | 896 | (unsigned long)priv); |
8f641d93 DD |
897 | setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler, |
898 | (unsigned long)priv); | |
49125454 AK |
899 | setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, |
900 | (unsigned long)priv); | |
1df4e8fe | 901 | |
aa21c004 DW |
902 | INIT_LIST_HEAD(&priv->cmdfreeq); |
903 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
1df4e8fe | 904 | |
aa21c004 | 905 | spin_lock_init(&priv->driver_lock); |
1df4e8fe | 906 | |
954ee164 | 907 | /* Allocate the command buffers */ |
10078321 | 908 | if (lbs_allocate_cmd_buffer(priv)) { |
0e4e06ae | 909 | pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
910 | ret = -ENOMEM; |
911 | goto out; | |
912 | } | |
913 | priv->resp_idx = 0; | |
914 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
915 | ||
916 | /* Create the event FIFO */ | |
c1e13f25 | 917 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 918 | if (ret) { |
0e4e06ae | 919 | pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 920 | goto out; |
954ee164 | 921 | } |
1df4e8fe | 922 | |
954ee164 | 923 | out: |
61d30020 HS |
924 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
925 | ||
954ee164 DW |
926 | return ret; |
927 | } | |
1df4e8fe | 928 | |
69f9032d | 929 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 930 | { |
61d30020 | 931 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 932 | |
61d30020 | 933 | lbs_free_cmd_buffer(priv); |
45465487 | 934 | kfifo_free(&priv->event_fifo); |
aa21c004 | 935 | del_timer(&priv->command_timer); |
8f641d93 | 936 | del_timer(&priv->tx_lockup_timer); |
49125454 | 937 | del_timer(&priv->auto_deepsleep_timer); |
61d30020 HS |
938 | |
939 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
940 | } |
941 | ||
f02abf10 SH |
942 | static const struct net_device_ops lbs_netdev_ops = { |
943 | .ndo_open = lbs_dev_open, | |
944 | .ndo_stop = lbs_eth_stop, | |
945 | .ndo_start_xmit = lbs_hard_start_xmit, | |
946 | .ndo_set_mac_address = lbs_set_mac_address, | |
afc4b13d | 947 | .ndo_set_rx_mode = lbs_set_multicast_list, |
f02abf10 SH |
948 | .ndo_change_mtu = eth_change_mtu, |
949 | .ndo_validate_addr = eth_validate_addr, | |
950 | }; | |
951 | ||
876c9d3a | 952 | /** |
8973a6e7 | 953 | * lbs_add_card - adds the card. It will probe the |
10078321 | 954 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a | 955 | * |
8973a6e7 RD |
956 | * @card: A pointer to card |
957 | * @dmdev: A pointer to &struct device | |
958 | * returns: A pointer to &struct lbs_private structure | |
876c9d3a | 959 | */ |
69f9032d | 960 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 961 | { |
ff9fc791 HS |
962 | struct net_device *dev; |
963 | struct wireless_dev *wdev; | |
69f9032d | 964 | struct lbs_private *priv = NULL; |
876c9d3a | 965 | |
61d30020 | 966 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
967 | |
968 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
969 | wdev = lbs_cfg_alloc(dmdev); |
970 | if (IS_ERR(wdev)) { | |
0e4e06ae | 971 | pr_err("cfg80211 init failed\n"); |
954ee164 | 972 | goto done; |
876c9d3a | 973 | } |
e86dc1ca | 974 | |
ff9fc791 HS |
975 | wdev->iftype = NL80211_IFTYPE_STATION; |
976 | priv = wdev_priv(wdev); | |
977 | priv->wdev = wdev; | |
876c9d3a | 978 | |
10078321 | 979 | if (lbs_init_adapter(priv)) { |
0e4e06ae | 980 | pr_err("failed to initialize adapter structure\n"); |
ff9fc791 HS |
981 | goto err_wdev; |
982 | } | |
983 | ||
ff9fc791 HS |
984 | dev = alloc_netdev(0, "wlan%d", ether_setup); |
985 | if (!dev) { | |
986 | dev_err(dmdev, "no memory for network device instance\n"); | |
987 | goto err_adapter; | |
954ee164 DW |
988 | } |
989 | ||
ff9fc791 HS |
990 | dev->ieee80211_ptr = wdev; |
991 | dev->ml_priv = priv; | |
992 | SET_NETDEV_DEV(dev, dmdev); | |
993 | wdev->netdev = dev; | |
634b8f49 | 994 | priv->dev = dev; |
876c9d3a | 995 | |
f02abf10 | 996 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 997 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 998 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 999 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 1000 | |
ff9fc791 | 1001 | priv->card = card; |
7732ca45 | 1002 | |
c00552c6 | 1003 | strcpy(dev->name, "wlan%d"); |
954ee164 DW |
1004 | |
1005 | lbs_deb_thread("Starting main thread...\n"); | |
1006 | init_waitqueue_head(&priv->waitq); | |
10078321 | 1007 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
954ee164 DW |
1008 | if (IS_ERR(priv->main_thread)) { |
1009 | lbs_deb_thread("Error creating main thread.\n"); | |
ff9fc791 | 1010 | goto err_ndev; |
954ee164 DW |
1011 | } |
1012 | ||
10078321 | 1013 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
75bf45a7 | 1014 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
23a397ac | 1015 | |
ae63a33e | 1016 | priv->wol_criteria = EHS_REMOVE_WAKEUP; |
506e9025 | 1017 | priv->wol_gpio = 0xff; |
66fceb69 | 1018 | priv->wol_gap = 20; |
ae63a33e | 1019 | priv->ehs_remove_supported = true; |
506e9025 | 1020 | |
32a74b7c HS |
1021 | goto done; |
1022 | ||
ff9fc791 | 1023 | err_ndev: |
32a74b7c | 1024 | free_netdev(dev); |
ff9fc791 HS |
1025 | |
1026 | err_adapter: | |
1027 | lbs_free_adapter(priv); | |
1028 | ||
1029 | err_wdev: | |
1030 | lbs_cfg_free(priv); | |
1031 | ||
6a812157 | 1032 | priv = NULL; |
954ee164 | 1033 | |
32a74b7c | 1034 | done: |
61d30020 | 1035 | lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); |
32a74b7c HS |
1036 | return priv; |
1037 | } | |
10078321 | 1038 | EXPORT_SYMBOL_GPL(lbs_add_card); |
32a74b7c | 1039 | |
954ee164 | 1040 | |
a63e5cb2 | 1041 | void lbs_remove_card(struct lbs_private *priv) |
32a74b7c | 1042 | { |
634b8f49 | 1043 | struct net_device *dev = priv->dev; |
32a74b7c HS |
1044 | |
1045 | lbs_deb_enter(LBS_DEB_MAIN); | |
876c9d3a | 1046 | |
23a397ac | 1047 | lbs_remove_mesh(priv); |
0beecac8 DD |
1048 | |
1049 | if (priv->wiphy_registered) | |
1050 | lbs_scan_deinit(priv); | |
876c9d3a | 1051 | |
534111c7 DD |
1052 | lbs_wait_for_firmware_load(priv); |
1053 | ||
71b35f3a DW |
1054 | /* worker thread destruction blocks on the in-flight command which |
1055 | * should have been cleared already in lbs_stop_card(). | |
1056 | */ | |
1057 | lbs_deb_main("destroying worker thread\n"); | |
954ee164 | 1058 | destroy_workqueue(priv->work_thread); |
71b35f3a | 1059 | lbs_deb_main("done destroying worker thread\n"); |
876c9d3a | 1060 | |
aa21c004 DW |
1061 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
1062 | priv->psmode = LBS802_11POWERMODECAM; | |
0bb64087 | 1063 | lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); |
876c9d3a MT |
1064 | } |
1065 | ||
49125454 AK |
1066 | if (priv->is_deep_sleep) { |
1067 | priv->is_deep_sleep = 0; | |
1068 | wake_up_interruptible(&priv->ds_awake_q); | |
1069 | } | |
1070 | ||
66fceb69 AK |
1071 | priv->is_host_sleep_configured = 0; |
1072 | priv->is_host_sleep_activated = 0; | |
1073 | wake_up_interruptible(&priv->host_sleep_q); | |
1074 | ||
954ee164 | 1075 | /* Stop the thread servicing the interrupts */ |
aa21c004 | 1076 | priv->surpriseremoved = 1; |
954ee164 DW |
1077 | kthread_stop(priv->main_thread); |
1078 | ||
10078321 | 1079 | lbs_free_adapter(priv); |
ff9fc791 | 1080 | lbs_cfg_free(priv); |
954ee164 DW |
1081 | free_netdev(dev); |
1082 | ||
1083 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 1084 | } |
10078321 | 1085 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
1086 | |
1087 | ||
e86dc1ca | 1088 | int lbs_rtap_supported(struct lbs_private *priv) |
cd74468b HS |
1089 | { |
1090 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) | |
1091 | return 1; | |
1092 | ||
1093 | /* newer firmware use a capability mask */ | |
1094 | return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && | |
1095 | (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); | |
1096 | } | |
1097 | ||
1098 | ||
69f9032d | 1099 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
1100 | { |
1101 | struct net_device *dev = priv->dev; | |
1102 | int ret = -1; | |
1103 | ||
1104 | lbs_deb_enter(LBS_DEB_MAIN); | |
1105 | ||
1106 | /* poke the firmware */ | |
10078321 | 1107 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
1108 | if (ret) |
1109 | goto done; | |
1110 | ||
49fee692 DD |
1111 | if (!lbs_disablemesh) |
1112 | lbs_init_mesh(priv); | |
1113 | else | |
1114 | pr_info("%s: mesh disabled\n", dev->name); | |
1115 | ||
ff9fc791 | 1116 | if (lbs_cfg_register(priv)) { |
0e4e06ae | 1117 | pr_err("cannot register device\n"); |
954ee164 | 1118 | goto done; |
876c9d3a | 1119 | } |
020f3d00 | 1120 | |
49fee692 DD |
1121 | if (lbs_mesh_activated(priv)) |
1122 | lbs_start_mesh(priv); | |
cd74468b | 1123 | |
10078321 | 1124 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 1125 | |
f3a57fd1 | 1126 | netdev_info(dev, "Marvell WLAN 802.11 adapter\n"); |
954ee164 | 1127 | |
32a74b7c | 1128 | ret = 0; |
876c9d3a | 1129 | |
32a74b7c | 1130 | done: |
954ee164 DW |
1131 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
1132 | return ret; | |
1133 | } | |
10078321 | 1134 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
1135 | |
1136 | ||
a63e5cb2 | 1137 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 1138 | { |
43baa5bb | 1139 | struct net_device *dev; |
954ee164 DW |
1140 | |
1141 | lbs_deb_enter(LBS_DEB_MAIN); | |
1142 | ||
652e3f20 HS |
1143 | if (!priv) |
1144 | goto out; | |
43baa5bb | 1145 | dev = priv->dev; |
652e3f20 | 1146 | |
0beecac8 DD |
1147 | /* If the netdev isn't registered, it means that lbs_start_card() was |
1148 | * never called so we have nothing to do here. */ | |
1149 | if (dev->reg_state != NETREG_REGISTERED) | |
1150 | goto out; | |
1151 | ||
43baa5bb JL |
1152 | netif_stop_queue(dev); |
1153 | netif_carrier_off(dev); | |
954ee164 | 1154 | |
10078321 | 1155 | lbs_debugfs_remove_one(priv); |
cd74468b | 1156 | lbs_deinit_mesh(priv); |
954ee164 DW |
1157 | unregister_netdev(dev); |
1158 | ||
652e3f20 | 1159 | out: |
a63e5cb2 | 1160 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1161 | } |
10078321 | 1162 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1163 | |
876c9d3a | 1164 | |
7919b89c HS |
1165 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1166 | { | |
1167 | unsigned long flags; | |
1168 | ||
1169 | lbs_deb_enter(LBS_DEB_THREAD); | |
1170 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1171 | ||
1172 | if (priv->psstate == PS_STATE_SLEEP) | |
1173 | priv->psstate = PS_STATE_AWAKE; | |
1174 | ||
7acd72eb | 1175 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c | 1176 | |
d2e7b342 | 1177 | wake_up(&priv->waitq); |
7919b89c HS |
1178 | |
1179 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1180 | lbs_deb_leave(LBS_DEB_THREAD); | |
1181 | } | |
1182 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1183 | ||
1184 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1185 | { |
ed37b516 | 1186 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1187 | |
4f679496 | 1188 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1189 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1190 | |
1191 | /* Swap buffers by flipping the response index */ | |
1192 | BUG_ON(resp_idx > 1); | |
1193 | priv->resp_idx = resp_idx; | |
1194 | ||
d2e7b342 | 1195 | wake_up(&priv->waitq); |
876c9d3a | 1196 | |
ed37b516 | 1197 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1198 | } |
7919b89c | 1199 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1200 | |
4fb910fd | 1201 | static int __init lbs_init_module(void) |
876c9d3a | 1202 | { |
9012b28a | 1203 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1204 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1205 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1206 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
0bb64087 | 1207 | confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED); |
10078321 | 1208 | lbs_debugfs_init(); |
084708b6 HS |
1209 | lbs_deb_leave(LBS_DEB_MAIN); |
1210 | return 0; | |
876c9d3a MT |
1211 | } |
1212 | ||
4fb910fd | 1213 | static void __exit lbs_exit_module(void) |
876c9d3a | 1214 | { |
9012b28a | 1215 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1216 | lbs_debugfs_remove(); |
9012b28a | 1217 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1218 | } |
1219 | ||
10078321 HS |
1220 | module_init(lbs_init_module); |
1221 | module_exit(lbs_exit_module); | |
876c9d3a | 1222 | |
084708b6 | 1223 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1224 | MODULE_AUTHOR("Marvell International Ltd."); |
1225 | MODULE_LICENSE("GPL"); |