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 | ||
a46c6410 | 9 | #include <linux/moduleparam.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 | ||
d2e7b342 DD |
155 | lbs_update_channel(priv); |
156 | ||
157 | priv->iface_running = true; | |
158 | return 0; | |
159 | ||
160 | err: | |
161 | if (priv->power_save) | |
162 | priv->power_save(priv); | |
163 | return ret; | |
164 | } | |
6fb53252 | 165 | |
23a397ac | 166 | /** |
8973a6e7 | 167 | * lbs_dev_open - open the ethX interface |
876c9d3a | 168 | * |
8973a6e7 RD |
169 | * @dev: A pointer to &net_device structure |
170 | * returns: 0 or -EBUSY if monitor mode active | |
876c9d3a | 171 | */ |
10078321 | 172 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 173 | { |
ab65f649 | 174 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 175 | int ret = 0; |
876c9d3a | 176 | |
61d30020 | 177 | lbs_deb_enter(LBS_DEB_NET); |
d2e7b342 DD |
178 | if (!priv->iface_running) { |
179 | ret = lbs_start_iface(priv); | |
180 | if (ret) | |
181 | goto out; | |
182 | } | |
61d30020 | 183 | |
8552855f | 184 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 185 | |
d2e7b342 | 186 | netif_carrier_off(dev); |
876c9d3a | 187 | |
8552855f DW |
188 | if (!priv->tx_pending_len) |
189 | netif_wake_queue(dev); | |
876c9d3a | 190 | |
8552855f | 191 | spin_unlock_irq(&priv->driver_lock); |
d2e7b342 DD |
192 | |
193 | out: | |
61d30020 | 194 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 195 | return ret; |
876c9d3a MT |
196 | } |
197 | ||
d2e7b342 DD |
198 | static bool lbs_command_queue_empty(struct lbs_private *priv) |
199 | { | |
200 | unsigned long flags; | |
201 | bool ret; | |
202 | spin_lock_irqsave(&priv->driver_lock, flags); | |
203 | ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq); | |
204 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
205 | return ret; | |
206 | } | |
207 | ||
208 | int lbs_stop_iface(struct lbs_private *priv) | |
209 | { | |
210 | unsigned long flags; | |
211 | int ret = 0; | |
212 | ||
213 | lbs_deb_enter(LBS_DEB_MAIN); | |
214 | ||
215 | spin_lock_irqsave(&priv->driver_lock, flags); | |
216 | priv->iface_running = false; | |
217 | kfree_skb(priv->currenttxskb); | |
218 | priv->currenttxskb = NULL; | |
219 | priv->tx_pending_len = 0; | |
220 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
221 | ||
222 | cancel_work_sync(&priv->mcast_work); | |
8f641d93 | 223 | del_timer_sync(&priv->tx_lockup_timer); |
d2e7b342 DD |
224 | |
225 | /* Disable command processing, and wait for all commands to complete */ | |
226 | lbs_deb_main("waiting for commands to complete\n"); | |
227 | wait_event(priv->waitq, lbs_command_queue_empty(priv)); | |
228 | lbs_deb_main("all commands completed\n"); | |
229 | ||
230 | if (priv->power_save) | |
231 | ret = priv->power_save(priv); | |
232 | ||
233 | lbs_deb_leave(LBS_DEB_MAIN); | |
234 | return ret; | |
235 | } | |
236 | ||
876c9d3a | 237 | /** |
8973a6e7 | 238 | * lbs_eth_stop - close the ethX interface |
876c9d3a | 239 | * |
8973a6e7 RD |
240 | * @dev: A pointer to &net_device structure |
241 | * returns: 0 | |
876c9d3a | 242 | */ |
8552855f | 243 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 244 | { |
ab65f649 | 245 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 246 | |
61d30020 | 247 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 248 | |
d2e7b342 DD |
249 | if (priv->connect_status == LBS_CONNECTED) |
250 | lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING); | |
251 | ||
61d30020 | 252 | spin_lock_irq(&priv->driver_lock); |
8552855f | 253 | netif_stop_queue(dev); |
8552855f | 254 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 255 | |
d2e7b342 | 256 | lbs_update_mcast(priv); |
2e30168b DD |
257 | cancel_delayed_work_sync(&priv->scan_work); |
258 | if (priv->scan_req) { | |
259 | cfg80211_scan_done(priv->scan_req, false); | |
260 | priv->scan_req = NULL; | |
261 | } | |
75bf45a7 | 262 | |
d2e7b342 DD |
263 | netif_carrier_off(priv->dev); |
264 | ||
265 | if (!lbs_iface_active(priv)) | |
266 | lbs_stop_iface(priv); | |
267 | ||
61d30020 | 268 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 269 | return 0; |
876c9d3a MT |
270 | } |
271 | ||
e775ed7c DW |
272 | void lbs_host_to_card_done(struct lbs_private *priv) |
273 | { | |
a63b22bb DW |
274 | unsigned long flags; |
275 | ||
61d30020 HS |
276 | lbs_deb_enter(LBS_DEB_THREAD); |
277 | ||
a63b22bb | 278 | spin_lock_irqsave(&priv->driver_lock, flags); |
8f641d93 | 279 | del_timer(&priv->tx_lockup_timer); |
e775ed7c DW |
280 | |
281 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
282 | ||
283 | /* Wake main thread if commands are pending */ | |
49125454 AK |
284 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
285 | if (!priv->wakeup_dev_required) | |
d2e7b342 | 286 | wake_up(&priv->waitq); |
49125454 | 287 | } |
e775ed7c | 288 | |
a63b22bb | 289 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 290 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
291 | } |
292 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
293 | ||
e0e42da3 | 294 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
295 | { |
296 | int ret = 0; | |
ab65f649 | 297 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a MT |
298 | struct sockaddr *phwaddr = addr; |
299 | ||
9012b28a | 300 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 301 | |
d2e7b342 DD |
302 | /* |
303 | * Can only set MAC address when all interfaces are down, to be written | |
304 | * to the hardware when one of them is brought up. | |
305 | */ | |
306 | if (lbs_iface_active(priv)) | |
307 | return -EBUSY; | |
308 | ||
0a0d08ac | 309 | /* In case it was called from the mesh device */ |
2af9f039 | 310 | dev = priv->dev; |
0a0d08ac | 311 | |
2af9f039 HS |
312 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
313 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 314 | if (priv->mesh_dev) |
2af9f039 | 315 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a | 316 | |
9012b28a | 317 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
318 | return ret; |
319 | } | |
320 | ||
75bf45a7 DW |
321 | |
322 | static inline int mac_in_list(unsigned char *list, int list_len, | |
323 | unsigned char *mac) | |
876c9d3a | 324 | { |
75bf45a7 DW |
325 | while (list_len) { |
326 | if (!memcmp(list, mac, ETH_ALEN)) | |
327 | return 1; | |
328 | list += ETH_ALEN; | |
329 | list_len--; | |
330 | } | |
331 | return 0; | |
332 | } | |
333 | ||
876c9d3a | 334 | |
75bf45a7 DW |
335 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
336 | struct net_device *dev, int nr_addrs) | |
337 | { | |
338 | int i = nr_addrs; | |
22bedad3 | 339 | struct netdev_hw_addr *ha; |
655ffee2 | 340 | int cnt; |
75bf45a7 DW |
341 | |
342 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
343 | return nr_addrs; | |
344 | ||
b9e40857 | 345 | netif_addr_lock_bh(dev); |
655ffee2 | 346 | cnt = netdev_mc_count(dev); |
22bedad3 JP |
347 | netdev_for_each_mc_addr(ha, dev) { |
348 | if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { | |
e174961c | 349 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
22bedad3 | 350 | ha->addr); |
655ffee2 | 351 | cnt--; |
75bf45a7 DW |
352 | continue; |
353 | } | |
876c9d3a | 354 | |
75bf45a7 DW |
355 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
356 | break; | |
22bedad3 | 357 | memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); |
e174961c | 358 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
22bedad3 | 359 | ha->addr); |
75bf45a7 | 360 | i++; |
655ffee2 | 361 | cnt--; |
876c9d3a | 362 | } |
b9e40857 | 363 | netif_addr_unlock_bh(dev); |
655ffee2 | 364 | if (cnt) |
75bf45a7 DW |
365 | return -EOVERFLOW; |
366 | ||
876c9d3a | 367 | return i; |
876c9d3a MT |
368 | } |
369 | ||
d2e7b342 | 370 | void lbs_update_mcast(struct lbs_private *priv) |
876c9d3a | 371 | { |
75bf45a7 | 372 | struct cmd_ds_mac_multicast_adr mcast_cmd; |
d2e7b342 | 373 | int dev_flags = 0; |
75bf45a7 DW |
374 | int nr_addrs; |
375 | int old_mac_control = priv->mac_control; | |
876c9d3a | 376 | |
9012b28a | 377 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 378 | |
d2e7b342 DD |
379 | if (netif_running(priv->dev)) |
380 | dev_flags |= priv->dev->flags; | |
381 | if (priv->mesh_dev && netif_running(priv->mesh_dev)) | |
75bf45a7 DW |
382 | dev_flags |= priv->mesh_dev->flags; |
383 | ||
384 | if (dev_flags & IFF_PROMISC) { | |
385 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
386 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
387 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
388 | goto out_set_mac_control; | |
389 | } else if (dev_flags & IFF_ALLMULTI) { | |
390 | do_allmulti: | |
391 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
392 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
393 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
394 | goto out_set_mac_control; | |
876c9d3a MT |
395 | } |
396 | ||
75bf45a7 DW |
397 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
398 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
399 | if (nr_addrs >= 0 && priv->mesh_dev) | |
400 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
401 | if (nr_addrs < 0) | |
402 | goto do_allmulti; | |
403 | ||
404 | if (nr_addrs) { | |
405 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
406 | maclist[6*nr_addrs]); | |
407 | ||
408 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
409 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
410 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
411 | ||
412 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
413 | ||
414 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
415 | } else | |
416 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
417 | ||
418 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
419 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
420 | out_set_mac_control: | |
d9e9778c HS |
421 | if (priv->mac_control != old_mac_control) |
422 | lbs_set_mac_control(priv); | |
876c9d3a | 423 | |
9012b28a | 424 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
425 | } |
426 | ||
d2e7b342 DD |
427 | static void lbs_set_mcast_worker(struct work_struct *work) |
428 | { | |
429 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); | |
430 | lbs_update_mcast(priv); | |
431 | } | |
432 | ||
e0e42da3 | 433 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 434 | { |
ab65f649 | 435 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
436 | |
437 | schedule_work(&priv->mcast_work); | |
438 | } | |
439 | ||
876c9d3a | 440 | /** |
8973a6e7 | 441 | * lbs_thread - handles the major jobs in the LBS driver. |
9012b28a HS |
442 | * It handles all events generated by firmware, RX data received |
443 | * from firmware and TX data sent from kernel. | |
876c9d3a | 444 | * |
8973a6e7 RD |
445 | * @data: A pointer to &lbs_thread structure |
446 | * returns: 0 | |
876c9d3a | 447 | */ |
10078321 | 448 | static int lbs_thread(void *data) |
876c9d3a | 449 | { |
fe336150 | 450 | struct net_device *dev = data; |
ab65f649 | 451 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 452 | wait_queue_t wait; |
876c9d3a | 453 | |
9012b28a | 454 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 455 | |
876c9d3a MT |
456 | init_waitqueue_entry(&wait, current); |
457 | ||
458 | for (;;) { | |
b8d40bc9 | 459 | int shouldsleep; |
7919b89c | 460 | u8 resp_idx; |
b8d40bc9 | 461 | |
7919b89c HS |
462 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
463 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 464 | |
fe336150 | 465 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 466 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 467 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 468 | |
d9f88705 | 469 | if (kthread_should_stop()) |
b8d40bc9 | 470 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
471 | else if (priv->surpriseremoved) |
472 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
473 | else if (priv->psstate == PS_STATE_SLEEP) |
474 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
475 | else if (priv->cmd_timed_out) |
476 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
477 | else if (!priv->fw_ready) |
478 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
479 | else if (priv->dnld_sent) |
480 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
481 | else if (priv->tx_pending_len > 0) |
482 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
483 | else if (priv->resp_len[priv->resp_idx]) |
484 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
485 | else if (priv->cur_cmd) |
486 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
487 | else if (!list_empty(&priv->cmdpendingq) && |
488 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 489 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 490 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 491 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
492 | else |
493 | shouldsleep = 1; /* No command */ | |
494 | ||
495 | if (shouldsleep) { | |
7919b89c | 496 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 497 | "psmode %d, psstate %d\n", |
7919b89c HS |
498 | priv->connect_status, |
499 | priv->psmode, priv->psstate); | |
aa21c004 | 500 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
501 | schedule(); |
502 | } else | |
aa21c004 | 503 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 504 | |
7919b89c HS |
505 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
506 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
507 | |
508 | set_current_state(TASK_RUNNING); | |
fe336150 | 509 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 510 | |
7919b89c HS |
511 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
512 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 513 | |
d9f88705 | 514 | if (kthread_should_stop()) { |
7919b89c | 515 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
516 | break; |
517 | } | |
518 | ||
d9f88705 DW |
519 | if (priv->surpriseremoved) { |
520 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
521 | continue; | |
522 | } | |
876c9d3a | 523 | |
7919b89c HS |
524 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
525 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 526 | |
7919b89c | 527 | /* Process any pending command response */ |
a01f5450 | 528 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
529 | resp_idx = priv->resp_idx; |
530 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 531 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
532 | lbs_process_command_response(priv, |
533 | priv->resp_buf[resp_idx], | |
534 | priv->resp_len[resp_idx]); | |
aa21c004 | 535 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 536 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 537 | } |
7919b89c | 538 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 539 | |
49125454 AK |
540 | /* Process hardware events, e.g. card removed, link lost */ |
541 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 542 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 543 | u32 event; |
7acd72eb | 544 | |
9842c38e SS |
545 | if (kfifo_out(&priv->event_fifo, |
546 | (unsigned char *) &event, sizeof(event)) != | |
547 | sizeof(event)) | |
548 | break; | |
49125454 AK |
549 | spin_unlock_irq(&priv->driver_lock); |
550 | lbs_process_event(priv, event); | |
551 | spin_lock_irq(&priv->driver_lock); | |
552 | } | |
553 | spin_unlock_irq(&priv->driver_lock); | |
554 | ||
555 | if (priv->wakeup_dev_required) { | |
556 | lbs_deb_thread("Waking up device...\n"); | |
557 | /* Wake up device */ | |
558 | if (priv->exit_deep_sleep(priv)) | |
559 | lbs_deb_thread("Wakeup device failed\n"); | |
560 | continue; | |
561 | } | |
562 | ||
7919b89c | 563 | /* command timeout stuff */ |
2a345099 DW |
564 | if (priv->cmd_timed_out && priv->cur_cmd) { |
565 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
566 | ||
f3a57fd1 JP |
567 | netdev_info(dev, "Timeout submitting command 0x%04x\n", |
568 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
40e6fa82 HS |
569 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); |
570 | if (priv->reset_card) | |
571 | priv->reset_card(priv); | |
2a345099 DW |
572 | } |
573 | priv->cmd_timed_out = 0; | |
574 | ||
b15152a4 DW |
575 | if (!priv->fw_ready) |
576 | continue; | |
577 | ||
876c9d3a | 578 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
579 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
580 | !priv->dnld_sent && !priv->cur_cmd) { | |
581 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
582 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
583 | "dnld_sent %d, cur_cmd %p\n", | |
584 | priv->currenttxskb, priv->dnld_sent, | |
585 | priv->cur_cmd); | |
59f3e4bf | 586 | |
d4ff0ef6 | 587 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
588 | } else { |
589 | /* workaround for firmware sending | |
590 | * deauth/linkloss event immediately | |
591 | * after sleep request; remove this | |
592 | * after firmware fixes it | |
593 | */ | |
aa21c004 | 594 | priv->psstate = PS_STATE_AWAKE; |
f3a57fd1 JP |
595 | netdev_alert(dev, |
596 | "ignore PS_SleepConfirm in non-connected state\n"); | |
876c9d3a MT |
597 | } |
598 | } | |
599 | ||
600 | /* The PS state is changed during processing of Sleep Request | |
601 | * event above | |
602 | */ | |
aa21c004 DW |
603 | if ((priv->psstate == PS_STATE_SLEEP) || |
604 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
605 | continue; |
606 | ||
49125454 AK |
607 | if (priv->is_deep_sleep) |
608 | continue; | |
609 | ||
876c9d3a | 610 | /* Execute the next command */ |
aa21c004 | 611 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 612 | lbs_execute_next_command(priv); |
876c9d3a | 613 | |
2eb188a1 DW |
614 | spin_lock_irq(&priv->driver_lock); |
615 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
616 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
617 | priv->tx_pending_buf, | |
618 | priv->tx_pending_len); | |
619 | if (ret) { | |
620 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
621 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
8f641d93 DD |
622 | } else { |
623 | mod_timer(&priv->tx_lockup_timer, | |
624 | jiffies + (HZ * 5)); | |
2eb188a1 DW |
625 | } |
626 | priv->tx_pending_len = 0; | |
627 | if (!priv->currenttxskb) { | |
628 | /* We can wake the queues immediately if we aren't | |
629 | waiting for TX feedback */ | |
630 | if (priv->connect_status == LBS_CONNECTED) | |
631 | netif_wake_queue(priv->dev); | |
632 | if (priv->mesh_dev && | |
d9319986 | 633 | netif_running(priv->mesh_dev)) |
2eb188a1 DW |
634 | netif_wake_queue(priv->mesh_dev); |
635 | } | |
636 | } | |
637 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
638 | } |
639 | ||
aa21c004 | 640 | del_timer(&priv->command_timer); |
8f641d93 | 641 | del_timer(&priv->tx_lockup_timer); |
49125454 | 642 | del_timer(&priv->auto_deepsleep_timer); |
876c9d3a | 643 | |
9012b28a | 644 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
645 | return 0; |
646 | } | |
647 | ||
75abde4d | 648 | /** |
8973a6e7 RD |
649 | * lbs_setup_firmware - gets the HW spec from the firmware and sets |
650 | * some basic parameters | |
75abde4d | 651 | * |
8973a6e7 RD |
652 | * @priv: A pointer to &struct lbs_private structure |
653 | * returns: 0 or -1 | |
75abde4d VK |
654 | */ |
655 | static int lbs_setup_firmware(struct lbs_private *priv) | |
656 | { | |
657 | int ret = -1; | |
658 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; | |
659 | ||
660 | lbs_deb_enter(LBS_DEB_FW); | |
661 | ||
662 | /* Read MAC address from firmware */ | |
663 | memset(priv->current_addr, 0xff, ETH_ALEN); | |
664 | ret = lbs_update_hw_spec(priv); | |
665 | if (ret) | |
666 | goto done; | |
667 | ||
668 | /* Read power levels if available */ | |
669 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
670 | if (ret == 0) { | |
671 | priv->txpower_cur = curlevel; | |
672 | priv->txpower_min = minlevel; | |
673 | priv->txpower_max = maxlevel; | |
674 | } | |
675 | ||
676 | /* Send cmd to FW to enable 11D function */ | |
677 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1); | |
678 | ||
679 | lbs_set_mac_control(priv); | |
680 | done: | |
681 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
682 | return ret; | |
683 | } | |
684 | ||
ab25ecae DW |
685 | int lbs_suspend(struct lbs_private *priv) |
686 | { | |
ab25ecae DW |
687 | int ret; |
688 | ||
61d30020 HS |
689 | lbs_deb_enter(LBS_DEB_FW); |
690 | ||
66fceb69 AK |
691 | if (priv->is_deep_sleep) { |
692 | ret = lbs_set_deep_sleep(priv, 0); | |
693 | if (ret) { | |
f3a57fd1 JP |
694 | netdev_err(priv->dev, |
695 | "deep sleep cancellation failed: %d\n", ret); | |
66fceb69 AK |
696 | return ret; |
697 | } | |
698 | priv->deep_sleep_required = 1; | |
506e9025 DW |
699 | } |
700 | ||
1311843c | 701 | ret = lbs_set_host_sleep(priv, 1); |
7e226272 | 702 | |
66fceb69 AK |
703 | netif_device_detach(priv->dev); |
704 | if (priv->mesh_dev) | |
705 | netif_device_detach(priv->mesh_dev); | |
ab25ecae | 706 | |
61d30020 | 707 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
708 | return ret; |
709 | } | |
710 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
711 | ||
66fceb69 | 712 | int lbs_resume(struct lbs_private *priv) |
ab25ecae | 713 | { |
66fceb69 | 714 | int ret; |
61d30020 | 715 | |
66fceb69 | 716 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae | 717 | |
1311843c | 718 | ret = lbs_set_host_sleep(priv, 0); |
ab25ecae DW |
719 | |
720 | netif_device_attach(priv->dev); | |
721 | if (priv->mesh_dev) | |
722 | netif_device_attach(priv->mesh_dev); | |
723 | ||
66fceb69 AK |
724 | if (priv->deep_sleep_required) { |
725 | priv->deep_sleep_required = 0; | |
726 | ret = lbs_set_deep_sleep(priv, 1); | |
727 | if (ret) | |
f3a57fd1 JP |
728 | netdev_err(priv->dev, |
729 | "deep sleep activation failed: %d\n", ret); | |
66fceb69 AK |
730 | } |
731 | ||
75abde4d VK |
732 | if (priv->setup_fw_on_resume) |
733 | ret = lbs_setup_firmware(priv); | |
87c8c72d | 734 | |
1df4e8fe HS |
735 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
736 | return ret; | |
737 | } | |
75abde4d | 738 | EXPORT_SYMBOL_GPL(lbs_resume); |
1df4e8fe | 739 | |
1df4e8fe | 740 | /** |
8973a6e7 RD |
741 | * lbs_cmd_timeout_handler - handles the timeout of command sending. |
742 | * It will re-send the same command again. | |
743 | * | |
744 | * @data: &struct lbs_private pointer | |
1df4e8fe | 745 | */ |
40e6fa82 | 746 | static void lbs_cmd_timeout_handler(unsigned long data) |
1df4e8fe | 747 | { |
69f9032d | 748 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
749 | unsigned long flags; |
750 | ||
61d30020 | 751 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 752 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 753 | |
57962f0b | 754 | if (!priv->cur_cmd) |
2a345099 | 755 | goto out; |
1df4e8fe | 756 | |
f3a57fd1 JP |
757 | netdev_info(priv->dev, "command 0x%04x timed out\n", |
758 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 759 | |
2a345099 | 760 | priv->cmd_timed_out = 1; |
df90d843 DD |
761 | |
762 | /* | |
763 | * If the device didn't even acknowledge the command, reset the state | |
764 | * so that we don't block all future commands due to this one timeout. | |
765 | */ | |
766 | if (priv->dnld_sent == DNLD_CMD_SENT) | |
767 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
768 | ||
d2e7b342 | 769 | wake_up(&priv->waitq); |
61d30020 | 770 | out: |
2a345099 | 771 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 772 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
773 | } |
774 | ||
8f641d93 DD |
775 | /** |
776 | * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames | |
777 | * to the hardware. This is known to frequently happen with SD8686 when | |
778 | * waking up after a Wake-on-WLAN-triggered resume. | |
779 | * | |
780 | * @data: &struct lbs_private pointer | |
781 | */ | |
782 | static void lbs_tx_lockup_handler(unsigned long data) | |
783 | { | |
784 | struct lbs_private *priv = (struct lbs_private *)data; | |
785 | unsigned long flags; | |
786 | ||
787 | lbs_deb_enter(LBS_DEB_TX); | |
788 | spin_lock_irqsave(&priv->driver_lock, flags); | |
789 | ||
790 | netdev_info(priv->dev, "TX lockup detected\n"); | |
791 | if (priv->reset_card) | |
792 | priv->reset_card(priv); | |
793 | ||
794 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
795 | wake_up_interruptible(&priv->waitq); | |
796 | ||
797 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
798 | lbs_deb_leave(LBS_DEB_TX); | |
799 | } | |
800 | ||
49125454 | 801 | /** |
8973a6e7 RD |
802 | * auto_deepsleep_timer_fn - put the device back to deep sleep mode when |
803 | * timer expires and no activity (command, event, data etc.) is detected. | |
804 | * @data: &struct lbs_private pointer | |
805 | * returns: N/A | |
49125454 AK |
806 | */ |
807 | static void auto_deepsleep_timer_fn(unsigned long data) | |
808 | { | |
809 | struct lbs_private *priv = (struct lbs_private *)data; | |
49125454 AK |
810 | |
811 | lbs_deb_enter(LBS_DEB_CMD); | |
812 | ||
813 | if (priv->is_activity_detected) { | |
814 | priv->is_activity_detected = 0; | |
815 | } else { | |
816 | if (priv->is_auto_deep_sleep_enabled && | |
53800f5d DW |
817 | (!priv->wakeup_dev_required) && |
818 | (priv->connect_status != LBS_CONNECTED)) { | |
819 | struct cmd_header cmd; | |
820 | ||
49125454 | 821 | lbs_deb_main("Entering auto deep sleep mode...\n"); |
53800f5d DW |
822 | memset(&cmd, 0, sizeof(cmd)); |
823 | cmd.size = cpu_to_le16(sizeof(cmd)); | |
824 | lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd, | |
825 | sizeof(cmd)); | |
49125454 AK |
826 | } |
827 | } | |
828 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
829 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
830 | lbs_deb_leave(LBS_DEB_CMD); | |
831 | } | |
832 | ||
833 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
834 | { | |
835 | lbs_deb_enter(LBS_DEB_SDIO); | |
836 | ||
837 | priv->is_auto_deep_sleep_enabled = 1; | |
838 | if (priv->is_deep_sleep) | |
839 | priv->wakeup_dev_required = 1; | |
840 | mod_timer(&priv->auto_deepsleep_timer , | |
841 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
842 | ||
843 | lbs_deb_leave(LBS_DEB_SDIO); | |
844 | return 0; | |
845 | } | |
846 | ||
847 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
848 | { | |
849 | lbs_deb_enter(LBS_DEB_SDIO); | |
850 | ||
851 | priv->is_auto_deep_sleep_enabled = 0; | |
852 | priv->auto_deep_sleep_timeout = 0; | |
853 | del_timer(&priv->auto_deepsleep_timer); | |
854 | ||
855 | lbs_deb_leave(LBS_DEB_SDIO); | |
856 | return 0; | |
857 | } | |
858 | ||
69f9032d | 859 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 860 | { |
e86dc1ca | 861 | int ret; |
1df4e8fe | 862 | |
61d30020 HS |
863 | lbs_deb_enter(LBS_DEB_MAIN); |
864 | ||
aa21c004 | 865 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 866 | |
aa21c004 | 867 | priv->connect_status = LBS_DISCONNECTED; |
c14951fe | 868 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 869 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 870 | priv->radio_on = 1; |
aa21c004 DW |
871 | priv->psmode = LBS802_11POWERMODECAM; |
872 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
873 | priv->is_deep_sleep = 0; |
874 | priv->is_auto_deep_sleep_enabled = 0; | |
66fceb69 | 875 | priv->deep_sleep_required = 0; |
49125454 AK |
876 | priv->wakeup_dev_required = 0; |
877 | init_waitqueue_head(&priv->ds_awake_q); | |
cc026819 | 878 | init_waitqueue_head(&priv->scan_q); |
921ca03c | 879 | priv->authtype_auto = 1; |
66fceb69 AK |
880 | priv->is_host_sleep_configured = 0; |
881 | priv->is_host_sleep_activated = 0; | |
882 | init_waitqueue_head(&priv->host_sleep_q); | |
aa21c004 | 883 | mutex_init(&priv->lock); |
1df4e8fe | 884 | |
40e6fa82 | 885 | setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, |
61d30020 | 886 | (unsigned long)priv); |
8f641d93 DD |
887 | setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler, |
888 | (unsigned long)priv); | |
49125454 AK |
889 | setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, |
890 | (unsigned long)priv); | |
1df4e8fe | 891 | |
aa21c004 DW |
892 | INIT_LIST_HEAD(&priv->cmdfreeq); |
893 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
1df4e8fe | 894 | |
aa21c004 | 895 | spin_lock_init(&priv->driver_lock); |
1df4e8fe | 896 | |
954ee164 | 897 | /* Allocate the command buffers */ |
10078321 | 898 | if (lbs_allocate_cmd_buffer(priv)) { |
0e4e06ae | 899 | pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
900 | ret = -ENOMEM; |
901 | goto out; | |
902 | } | |
903 | priv->resp_idx = 0; | |
904 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
905 | ||
906 | /* Create the event FIFO */ | |
c1e13f25 | 907 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 908 | if (ret) { |
0e4e06ae | 909 | pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 910 | goto out; |
954ee164 | 911 | } |
1df4e8fe | 912 | |
954ee164 | 913 | out: |
61d30020 HS |
914 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
915 | ||
954ee164 DW |
916 | return ret; |
917 | } | |
1df4e8fe | 918 | |
69f9032d | 919 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 920 | { |
61d30020 | 921 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 922 | |
61d30020 | 923 | lbs_free_cmd_buffer(priv); |
45465487 | 924 | kfifo_free(&priv->event_fifo); |
aa21c004 | 925 | del_timer(&priv->command_timer); |
8f641d93 | 926 | del_timer(&priv->tx_lockup_timer); |
49125454 | 927 | del_timer(&priv->auto_deepsleep_timer); |
61d30020 HS |
928 | |
929 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
930 | } |
931 | ||
f02abf10 SH |
932 | static const struct net_device_ops lbs_netdev_ops = { |
933 | .ndo_open = lbs_dev_open, | |
934 | .ndo_stop = lbs_eth_stop, | |
935 | .ndo_start_xmit = lbs_hard_start_xmit, | |
936 | .ndo_set_mac_address = lbs_set_mac_address, | |
afc4b13d | 937 | .ndo_set_rx_mode = lbs_set_multicast_list, |
f02abf10 SH |
938 | .ndo_change_mtu = eth_change_mtu, |
939 | .ndo_validate_addr = eth_validate_addr, | |
940 | }; | |
941 | ||
876c9d3a | 942 | /** |
8973a6e7 | 943 | * lbs_add_card - adds the card. It will probe the |
10078321 | 944 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a | 945 | * |
8973a6e7 RD |
946 | * @card: A pointer to card |
947 | * @dmdev: A pointer to &struct device | |
948 | * returns: A pointer to &struct lbs_private structure | |
876c9d3a | 949 | */ |
69f9032d | 950 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 951 | { |
ff9fc791 HS |
952 | struct net_device *dev; |
953 | struct wireless_dev *wdev; | |
69f9032d | 954 | struct lbs_private *priv = NULL; |
876c9d3a | 955 | |
61d30020 | 956 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
957 | |
958 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
959 | wdev = lbs_cfg_alloc(dmdev); |
960 | if (IS_ERR(wdev)) { | |
0e4e06ae | 961 | pr_err("cfg80211 init failed\n"); |
954ee164 | 962 | goto done; |
876c9d3a | 963 | } |
e86dc1ca | 964 | |
ff9fc791 HS |
965 | wdev->iftype = NL80211_IFTYPE_STATION; |
966 | priv = wdev_priv(wdev); | |
967 | priv->wdev = wdev; | |
876c9d3a | 968 | |
10078321 | 969 | if (lbs_init_adapter(priv)) { |
0e4e06ae | 970 | pr_err("failed to initialize adapter structure\n"); |
ff9fc791 HS |
971 | goto err_wdev; |
972 | } | |
973 | ||
ff9fc791 HS |
974 | dev = alloc_netdev(0, "wlan%d", ether_setup); |
975 | if (!dev) { | |
976 | dev_err(dmdev, "no memory for network device instance\n"); | |
977 | goto err_adapter; | |
954ee164 DW |
978 | } |
979 | ||
ff9fc791 HS |
980 | dev->ieee80211_ptr = wdev; |
981 | dev->ml_priv = priv; | |
982 | SET_NETDEV_DEV(dev, dmdev); | |
983 | wdev->netdev = dev; | |
634b8f49 | 984 | priv->dev = dev; |
876c9d3a | 985 | |
f02abf10 | 986 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 987 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 988 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 989 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 990 | |
ff9fc791 | 991 | priv->card = card; |
7732ca45 | 992 | |
c00552c6 | 993 | strcpy(dev->name, "wlan%d"); |
954ee164 DW |
994 | |
995 | lbs_deb_thread("Starting main thread...\n"); | |
996 | init_waitqueue_head(&priv->waitq); | |
10078321 | 997 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
954ee164 DW |
998 | if (IS_ERR(priv->main_thread)) { |
999 | lbs_deb_thread("Error creating main thread.\n"); | |
ff9fc791 | 1000 | goto err_ndev; |
954ee164 DW |
1001 | } |
1002 | ||
10078321 | 1003 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
75bf45a7 | 1004 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
23a397ac | 1005 | |
ae63a33e | 1006 | priv->wol_criteria = EHS_REMOVE_WAKEUP; |
506e9025 | 1007 | priv->wol_gpio = 0xff; |
66fceb69 | 1008 | priv->wol_gap = 20; |
ae63a33e | 1009 | priv->ehs_remove_supported = true; |
506e9025 | 1010 | |
32a74b7c HS |
1011 | goto done; |
1012 | ||
ff9fc791 | 1013 | err_ndev: |
32a74b7c | 1014 | free_netdev(dev); |
ff9fc791 HS |
1015 | |
1016 | err_adapter: | |
1017 | lbs_free_adapter(priv); | |
1018 | ||
1019 | err_wdev: | |
1020 | lbs_cfg_free(priv); | |
1021 | ||
6a812157 | 1022 | priv = NULL; |
954ee164 | 1023 | |
32a74b7c | 1024 | done: |
61d30020 | 1025 | lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); |
32a74b7c HS |
1026 | return priv; |
1027 | } | |
10078321 | 1028 | EXPORT_SYMBOL_GPL(lbs_add_card); |
32a74b7c | 1029 | |
954ee164 | 1030 | |
a63e5cb2 | 1031 | void lbs_remove_card(struct lbs_private *priv) |
32a74b7c | 1032 | { |
634b8f49 | 1033 | struct net_device *dev = priv->dev; |
32a74b7c HS |
1034 | |
1035 | lbs_deb_enter(LBS_DEB_MAIN); | |
876c9d3a | 1036 | |
23a397ac | 1037 | lbs_remove_mesh(priv); |
e86dc1ca | 1038 | lbs_scan_deinit(priv); |
876c9d3a | 1039 | |
71b35f3a DW |
1040 | /* worker thread destruction blocks on the in-flight command which |
1041 | * should have been cleared already in lbs_stop_card(). | |
1042 | */ | |
1043 | lbs_deb_main("destroying worker thread\n"); | |
954ee164 | 1044 | destroy_workqueue(priv->work_thread); |
71b35f3a | 1045 | lbs_deb_main("done destroying worker thread\n"); |
876c9d3a | 1046 | |
aa21c004 DW |
1047 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
1048 | priv->psmode = LBS802_11POWERMODECAM; | |
0bb64087 | 1049 | lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); |
876c9d3a MT |
1050 | } |
1051 | ||
49125454 AK |
1052 | if (priv->is_deep_sleep) { |
1053 | priv->is_deep_sleep = 0; | |
1054 | wake_up_interruptible(&priv->ds_awake_q); | |
1055 | } | |
1056 | ||
66fceb69 AK |
1057 | priv->is_host_sleep_configured = 0; |
1058 | priv->is_host_sleep_activated = 0; | |
1059 | wake_up_interruptible(&priv->host_sleep_q); | |
1060 | ||
954ee164 | 1061 | /* Stop the thread servicing the interrupts */ |
aa21c004 | 1062 | priv->surpriseremoved = 1; |
954ee164 DW |
1063 | kthread_stop(priv->main_thread); |
1064 | ||
10078321 | 1065 | lbs_free_adapter(priv); |
ff9fc791 | 1066 | lbs_cfg_free(priv); |
954ee164 DW |
1067 | free_netdev(dev); |
1068 | ||
1069 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 1070 | } |
10078321 | 1071 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
1072 | |
1073 | ||
e86dc1ca | 1074 | int lbs_rtap_supported(struct lbs_private *priv) |
cd74468b HS |
1075 | { |
1076 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) | |
1077 | return 1; | |
1078 | ||
1079 | /* newer firmware use a capability mask */ | |
1080 | return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && | |
1081 | (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); | |
1082 | } | |
1083 | ||
1084 | ||
69f9032d | 1085 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
1086 | { |
1087 | struct net_device *dev = priv->dev; | |
1088 | int ret = -1; | |
1089 | ||
1090 | lbs_deb_enter(LBS_DEB_MAIN); | |
1091 | ||
1092 | /* poke the firmware */ | |
10078321 | 1093 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
1094 | if (ret) |
1095 | goto done; | |
1096 | ||
49fee692 DD |
1097 | if (!lbs_disablemesh) |
1098 | lbs_init_mesh(priv); | |
1099 | else | |
1100 | pr_info("%s: mesh disabled\n", dev->name); | |
1101 | ||
ff9fc791 | 1102 | if (lbs_cfg_register(priv)) { |
0e4e06ae | 1103 | pr_err("cannot register device\n"); |
954ee164 | 1104 | goto done; |
876c9d3a | 1105 | } |
020f3d00 | 1106 | |
49fee692 DD |
1107 | if (lbs_mesh_activated(priv)) |
1108 | lbs_start_mesh(priv); | |
cd74468b | 1109 | |
10078321 | 1110 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 1111 | |
f3a57fd1 | 1112 | netdev_info(dev, "Marvell WLAN 802.11 adapter\n"); |
954ee164 | 1113 | |
32a74b7c | 1114 | ret = 0; |
876c9d3a | 1115 | |
32a74b7c | 1116 | done: |
954ee164 DW |
1117 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
1118 | return ret; | |
1119 | } | |
10078321 | 1120 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
1121 | |
1122 | ||
a63e5cb2 | 1123 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 1124 | { |
43baa5bb | 1125 | struct net_device *dev; |
954ee164 DW |
1126 | |
1127 | lbs_deb_enter(LBS_DEB_MAIN); | |
1128 | ||
652e3f20 HS |
1129 | if (!priv) |
1130 | goto out; | |
43baa5bb | 1131 | dev = priv->dev; |
652e3f20 | 1132 | |
43baa5bb JL |
1133 | netif_stop_queue(dev); |
1134 | netif_carrier_off(dev); | |
954ee164 | 1135 | |
10078321 | 1136 | lbs_debugfs_remove_one(priv); |
cd74468b | 1137 | lbs_deinit_mesh(priv); |
954ee164 DW |
1138 | unregister_netdev(dev); |
1139 | ||
652e3f20 | 1140 | out: |
a63e5cb2 | 1141 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1142 | } |
10078321 | 1143 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1144 | |
876c9d3a | 1145 | |
7919b89c HS |
1146 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1147 | { | |
1148 | unsigned long flags; | |
1149 | ||
1150 | lbs_deb_enter(LBS_DEB_THREAD); | |
1151 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1152 | ||
1153 | if (priv->psstate == PS_STATE_SLEEP) | |
1154 | priv->psstate = PS_STATE_AWAKE; | |
1155 | ||
7acd72eb | 1156 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c | 1157 | |
d2e7b342 | 1158 | wake_up(&priv->waitq); |
7919b89c HS |
1159 | |
1160 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1161 | lbs_deb_leave(LBS_DEB_THREAD); | |
1162 | } | |
1163 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1164 | ||
1165 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1166 | { |
ed37b516 | 1167 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1168 | |
4f679496 | 1169 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1170 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1171 | |
1172 | /* Swap buffers by flipping the response index */ | |
1173 | BUG_ON(resp_idx > 1); | |
1174 | priv->resp_idx = resp_idx; | |
1175 | ||
d2e7b342 | 1176 | wake_up(&priv->waitq); |
876c9d3a | 1177 | |
ed37b516 | 1178 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1179 | } |
7919b89c | 1180 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1181 | |
72f7a667 | 1182 | /** |
8973a6e7 | 1183 | * lbs_get_firmware - Retrieves two-stage firmware |
72f7a667 | 1184 | * |
8973a6e7 RD |
1185 | * @dev: A pointer to &device structure |
1186 | * @user_helper: User-defined helper firmware file | |
1187 | * @user_mainfw: User-defined main firmware file | |
1188 | * @card_model: Bus-specific card model ID used to filter firmware table | |
1189 | * elements | |
1190 | * @fw_table: Table of firmware file names and device model numbers | |
1191 | * terminated by an entry with a NULL helper name | |
1192 | * @helper: On success, the helper firmware; caller must free | |
1193 | * @mainfw: On success, the main firmware; caller must free | |
72f7a667 | 1194 | * |
8973a6e7 | 1195 | * returns: 0 on success, non-zero on failure |
72f7a667 DW |
1196 | */ |
1197 | int lbs_get_firmware(struct device *dev, const char *user_helper, | |
1198 | const char *user_mainfw, u32 card_model, | |
1199 | const struct lbs_fw_table *fw_table, | |
1200 | const struct firmware **helper, | |
1201 | const struct firmware **mainfw) | |
1202 | { | |
1203 | const struct lbs_fw_table *iter; | |
1204 | int ret; | |
1205 | ||
1206 | BUG_ON(helper == NULL); | |
1207 | BUG_ON(mainfw == NULL); | |
1208 | ||
1209 | /* Try user-specified firmware first */ | |
1210 | if (user_helper) { | |
1211 | ret = request_firmware(helper, user_helper, dev); | |
1212 | if (ret) { | |
f3a57fd1 JP |
1213 | dev_err(dev, "couldn't find helper firmware %s\n", |
1214 | user_helper); | |
72f7a667 DW |
1215 | goto fail; |
1216 | } | |
1217 | } | |
1218 | if (user_mainfw) { | |
1219 | ret = request_firmware(mainfw, user_mainfw, dev); | |
1220 | if (ret) { | |
f3a57fd1 JP |
1221 | dev_err(dev, "couldn't find main firmware %s\n", |
1222 | user_mainfw); | |
72f7a667 DW |
1223 | goto fail; |
1224 | } | |
1225 | } | |
1226 | ||
1227 | if (*helper && *mainfw) | |
1228 | return 0; | |
1229 | ||
1230 | /* Otherwise search for firmware to use. If neither the helper or | |
1231 | * the main firmware were specified by the user, then we need to | |
1232 | * make sure that found helper & main are from the same entry in | |
1233 | * fw_table. | |
1234 | */ | |
1235 | iter = fw_table; | |
1236 | while (iter && iter->helper) { | |
1237 | if (iter->model != card_model) | |
1238 | goto next; | |
1239 | ||
1240 | if (*helper == NULL) { | |
1241 | ret = request_firmware(helper, iter->helper, dev); | |
1242 | if (ret) | |
1243 | goto next; | |
1244 | ||
1245 | /* If the device has one-stage firmware (ie cf8305) and | |
1246 | * we've got it then we don't need to bother with the | |
1247 | * main firmware. | |
1248 | */ | |
1249 | if (iter->fwname == NULL) | |
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | if (*mainfw == NULL) { | |
1254 | ret = request_firmware(mainfw, iter->fwname, dev); | |
1255 | if (ret && !user_helper) { | |
1256 | /* Clear the helper if it wasn't user-specified | |
1257 | * and the main firmware load failed, to ensure | |
1258 | * we don't have mismatched firmware pairs. | |
1259 | */ | |
1260 | release_firmware(*helper); | |
1261 | *helper = NULL; | |
1262 | } | |
1263 | } | |
1264 | ||
1265 | if (*helper && *mainfw) | |
1266 | return 0; | |
1267 | ||
1268 | next: | |
1269 | iter++; | |
1270 | } | |
1271 | ||
1272 | fail: | |
1273 | /* Failed */ | |
1274 | if (*helper) { | |
1275 | release_firmware(*helper); | |
1276 | *helper = NULL; | |
1277 | } | |
1278 | if (*mainfw) { | |
1279 | release_firmware(*mainfw); | |
1280 | *mainfw = NULL; | |
1281 | } | |
1282 | ||
1283 | return -ENOENT; | |
1284 | } | |
1285 | EXPORT_SYMBOL_GPL(lbs_get_firmware); | |
1286 | ||
4fb910fd | 1287 | static int __init lbs_init_module(void) |
876c9d3a | 1288 | { |
9012b28a | 1289 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1290 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1291 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1292 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
0bb64087 | 1293 | confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED); |
10078321 | 1294 | lbs_debugfs_init(); |
084708b6 HS |
1295 | lbs_deb_leave(LBS_DEB_MAIN); |
1296 | return 0; | |
876c9d3a MT |
1297 | } |
1298 | ||
4fb910fd | 1299 | static void __exit lbs_exit_module(void) |
876c9d3a | 1300 | { |
9012b28a | 1301 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1302 | lbs_debugfs_remove(); |
9012b28a | 1303 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1304 | } |
1305 | ||
10078321 HS |
1306 | module_init(lbs_init_module); |
1307 | module_exit(lbs_exit_module); | |
876c9d3a | 1308 | |
084708b6 | 1309 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1310 | MODULE_AUTHOR("Marvell International Ltd."); |
1311 | MODULE_LICENSE("GPL"); |