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 | |
d2e7b342 DD |
102 | int lbs_start_iface(struct lbs_private *priv) |
103 | { | |
104 | struct cmd_ds_802_11_mac_address cmd; | |
105 | int ret; | |
106 | ||
107 | if (priv->power_restore) { | |
108 | ret = priv->power_restore(priv); | |
109 | if (ret) | |
110 | return ret; | |
111 | } | |
112 | ||
113 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
114 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
115 | memcpy(cmd.macadd, priv->current_addr, ETH_ALEN); | |
116 | ||
117 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); | |
118 | if (ret) { | |
119 | lbs_deb_net("set MAC address failed\n"); | |
120 | goto err; | |
121 | } | |
122 | ||
123 | lbs_update_channel(priv); | |
124 | ||
125 | priv->iface_running = true; | |
126 | return 0; | |
127 | ||
128 | err: | |
129 | if (priv->power_save) | |
130 | priv->power_save(priv); | |
131 | return ret; | |
132 | } | |
6fb53252 | 133 | |
23a397ac | 134 | /** |
8973a6e7 | 135 | * lbs_dev_open - open the ethX interface |
876c9d3a | 136 | * |
8973a6e7 RD |
137 | * @dev: A pointer to &net_device structure |
138 | * returns: 0 or -EBUSY if monitor mode active | |
876c9d3a | 139 | */ |
10078321 | 140 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 141 | { |
ab65f649 | 142 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 143 | int ret = 0; |
876c9d3a | 144 | |
61d30020 | 145 | lbs_deb_enter(LBS_DEB_NET); |
d2e7b342 DD |
146 | if (!priv->iface_running) { |
147 | ret = lbs_start_iface(priv); | |
148 | if (ret) | |
149 | goto out; | |
150 | } | |
61d30020 | 151 | |
8552855f | 152 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 153 | |
d2e7b342 | 154 | netif_carrier_off(dev); |
876c9d3a | 155 | |
8552855f DW |
156 | if (!priv->tx_pending_len) |
157 | netif_wake_queue(dev); | |
876c9d3a | 158 | |
8552855f | 159 | spin_unlock_irq(&priv->driver_lock); |
d2e7b342 DD |
160 | |
161 | out: | |
61d30020 | 162 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 163 | return ret; |
876c9d3a MT |
164 | } |
165 | ||
d2e7b342 DD |
166 | static bool lbs_command_queue_empty(struct lbs_private *priv) |
167 | { | |
168 | unsigned long flags; | |
169 | bool ret; | |
170 | spin_lock_irqsave(&priv->driver_lock, flags); | |
171 | ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq); | |
172 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
173 | return ret; | |
174 | } | |
175 | ||
176 | int lbs_stop_iface(struct lbs_private *priv) | |
177 | { | |
178 | unsigned long flags; | |
179 | int ret = 0; | |
180 | ||
181 | lbs_deb_enter(LBS_DEB_MAIN); | |
182 | ||
183 | spin_lock_irqsave(&priv->driver_lock, flags); | |
184 | priv->iface_running = false; | |
185 | kfree_skb(priv->currenttxskb); | |
186 | priv->currenttxskb = NULL; | |
187 | priv->tx_pending_len = 0; | |
188 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
189 | ||
190 | cancel_work_sync(&priv->mcast_work); | |
8f641d93 | 191 | del_timer_sync(&priv->tx_lockup_timer); |
d2e7b342 DD |
192 | |
193 | /* Disable command processing, and wait for all commands to complete */ | |
194 | lbs_deb_main("waiting for commands to complete\n"); | |
195 | wait_event(priv->waitq, lbs_command_queue_empty(priv)); | |
196 | lbs_deb_main("all commands completed\n"); | |
197 | ||
198 | if (priv->power_save) | |
199 | ret = priv->power_save(priv); | |
200 | ||
201 | lbs_deb_leave(LBS_DEB_MAIN); | |
202 | return ret; | |
203 | } | |
204 | ||
876c9d3a | 205 | /** |
8973a6e7 | 206 | * lbs_eth_stop - close the ethX interface |
876c9d3a | 207 | * |
8973a6e7 RD |
208 | * @dev: A pointer to &net_device structure |
209 | * returns: 0 | |
876c9d3a | 210 | */ |
8552855f | 211 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 212 | { |
ab65f649 | 213 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 214 | |
61d30020 | 215 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 216 | |
d2e7b342 DD |
217 | if (priv->connect_status == LBS_CONNECTED) |
218 | lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING); | |
219 | ||
61d30020 | 220 | spin_lock_irq(&priv->driver_lock); |
8552855f | 221 | netif_stop_queue(dev); |
8552855f | 222 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 223 | |
d2e7b342 | 224 | lbs_update_mcast(priv); |
2e30168b DD |
225 | cancel_delayed_work_sync(&priv->scan_work); |
226 | if (priv->scan_req) { | |
227 | cfg80211_scan_done(priv->scan_req, false); | |
228 | priv->scan_req = NULL; | |
229 | } | |
75bf45a7 | 230 | |
d2e7b342 DD |
231 | netif_carrier_off(priv->dev); |
232 | ||
233 | if (!lbs_iface_active(priv)) | |
234 | lbs_stop_iface(priv); | |
235 | ||
61d30020 | 236 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 237 | return 0; |
876c9d3a MT |
238 | } |
239 | ||
e775ed7c DW |
240 | void lbs_host_to_card_done(struct lbs_private *priv) |
241 | { | |
a63b22bb DW |
242 | unsigned long flags; |
243 | ||
61d30020 HS |
244 | lbs_deb_enter(LBS_DEB_THREAD); |
245 | ||
a63b22bb | 246 | spin_lock_irqsave(&priv->driver_lock, flags); |
8f641d93 | 247 | del_timer(&priv->tx_lockup_timer); |
e775ed7c DW |
248 | |
249 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
250 | ||
251 | /* Wake main thread if commands are pending */ | |
49125454 AK |
252 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
253 | if (!priv->wakeup_dev_required) | |
d2e7b342 | 254 | wake_up(&priv->waitq); |
49125454 | 255 | } |
e775ed7c | 256 | |
a63b22bb | 257 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 258 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
259 | } |
260 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
261 | ||
e0e42da3 | 262 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
263 | { |
264 | int ret = 0; | |
ab65f649 | 265 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a MT |
266 | struct sockaddr *phwaddr = addr; |
267 | ||
9012b28a | 268 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 269 | |
d2e7b342 DD |
270 | /* |
271 | * Can only set MAC address when all interfaces are down, to be written | |
272 | * to the hardware when one of them is brought up. | |
273 | */ | |
274 | if (lbs_iface_active(priv)) | |
275 | return -EBUSY; | |
276 | ||
0a0d08ac | 277 | /* In case it was called from the mesh device */ |
2af9f039 | 278 | dev = priv->dev; |
0a0d08ac | 279 | |
2af9f039 HS |
280 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
281 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 282 | if (priv->mesh_dev) |
2af9f039 | 283 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a | 284 | |
9012b28a | 285 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
286 | return ret; |
287 | } | |
288 | ||
75bf45a7 DW |
289 | |
290 | static inline int mac_in_list(unsigned char *list, int list_len, | |
291 | unsigned char *mac) | |
876c9d3a | 292 | { |
75bf45a7 DW |
293 | while (list_len) { |
294 | if (!memcmp(list, mac, ETH_ALEN)) | |
295 | return 1; | |
296 | list += ETH_ALEN; | |
297 | list_len--; | |
298 | } | |
299 | return 0; | |
300 | } | |
301 | ||
876c9d3a | 302 | |
75bf45a7 DW |
303 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
304 | struct net_device *dev, int nr_addrs) | |
305 | { | |
306 | int i = nr_addrs; | |
22bedad3 | 307 | struct netdev_hw_addr *ha; |
655ffee2 | 308 | int cnt; |
75bf45a7 DW |
309 | |
310 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
311 | return nr_addrs; | |
312 | ||
b9e40857 | 313 | netif_addr_lock_bh(dev); |
655ffee2 | 314 | cnt = netdev_mc_count(dev); |
22bedad3 JP |
315 | netdev_for_each_mc_addr(ha, dev) { |
316 | if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { | |
e174961c | 317 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
22bedad3 | 318 | ha->addr); |
655ffee2 | 319 | cnt--; |
75bf45a7 DW |
320 | continue; |
321 | } | |
876c9d3a | 322 | |
75bf45a7 DW |
323 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
324 | break; | |
22bedad3 | 325 | memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); |
e174961c | 326 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
22bedad3 | 327 | ha->addr); |
75bf45a7 | 328 | i++; |
655ffee2 | 329 | cnt--; |
876c9d3a | 330 | } |
b9e40857 | 331 | netif_addr_unlock_bh(dev); |
655ffee2 | 332 | if (cnt) |
75bf45a7 DW |
333 | return -EOVERFLOW; |
334 | ||
876c9d3a | 335 | return i; |
876c9d3a MT |
336 | } |
337 | ||
d2e7b342 | 338 | void lbs_update_mcast(struct lbs_private *priv) |
876c9d3a | 339 | { |
75bf45a7 | 340 | struct cmd_ds_mac_multicast_adr mcast_cmd; |
d2e7b342 | 341 | int dev_flags = 0; |
75bf45a7 DW |
342 | int nr_addrs; |
343 | int old_mac_control = priv->mac_control; | |
876c9d3a | 344 | |
9012b28a | 345 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 346 | |
d2e7b342 DD |
347 | if (netif_running(priv->dev)) |
348 | dev_flags |= priv->dev->flags; | |
349 | if (priv->mesh_dev && netif_running(priv->mesh_dev)) | |
75bf45a7 DW |
350 | dev_flags |= priv->mesh_dev->flags; |
351 | ||
352 | if (dev_flags & IFF_PROMISC) { | |
353 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
354 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
355 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
356 | goto out_set_mac_control; | |
357 | } else if (dev_flags & IFF_ALLMULTI) { | |
358 | do_allmulti: | |
359 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
360 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
361 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
362 | goto out_set_mac_control; | |
876c9d3a MT |
363 | } |
364 | ||
75bf45a7 DW |
365 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
366 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
367 | if (nr_addrs >= 0 && priv->mesh_dev) | |
368 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
369 | if (nr_addrs < 0) | |
370 | goto do_allmulti; | |
371 | ||
372 | if (nr_addrs) { | |
373 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
374 | maclist[6*nr_addrs]); | |
375 | ||
376 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
377 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
378 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
379 | ||
380 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
381 | ||
382 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
383 | } else | |
384 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
385 | ||
386 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
387 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
388 | out_set_mac_control: | |
d9e9778c HS |
389 | if (priv->mac_control != old_mac_control) |
390 | lbs_set_mac_control(priv); | |
876c9d3a | 391 | |
9012b28a | 392 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
393 | } |
394 | ||
d2e7b342 DD |
395 | static void lbs_set_mcast_worker(struct work_struct *work) |
396 | { | |
397 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); | |
398 | lbs_update_mcast(priv); | |
399 | } | |
400 | ||
e0e42da3 | 401 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 402 | { |
ab65f649 | 403 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
404 | |
405 | schedule_work(&priv->mcast_work); | |
406 | } | |
407 | ||
876c9d3a | 408 | /** |
8973a6e7 | 409 | * lbs_thread - handles the major jobs in the LBS driver. |
9012b28a HS |
410 | * It handles all events generated by firmware, RX data received |
411 | * from firmware and TX data sent from kernel. | |
876c9d3a | 412 | * |
8973a6e7 RD |
413 | * @data: A pointer to &lbs_thread structure |
414 | * returns: 0 | |
876c9d3a | 415 | */ |
10078321 | 416 | static int lbs_thread(void *data) |
876c9d3a | 417 | { |
fe336150 | 418 | struct net_device *dev = data; |
ab65f649 | 419 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 420 | wait_queue_t wait; |
876c9d3a | 421 | |
9012b28a | 422 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 423 | |
876c9d3a MT |
424 | init_waitqueue_entry(&wait, current); |
425 | ||
426 | for (;;) { | |
b8d40bc9 | 427 | int shouldsleep; |
7919b89c | 428 | u8 resp_idx; |
b8d40bc9 | 429 | |
7919b89c HS |
430 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
431 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 432 | |
fe336150 | 433 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 434 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 435 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 436 | |
d9f88705 | 437 | if (kthread_should_stop()) |
b8d40bc9 | 438 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
439 | else if (priv->surpriseremoved) |
440 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
441 | else if (priv->psstate == PS_STATE_SLEEP) |
442 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
443 | else if (priv->cmd_timed_out) |
444 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
445 | else if (!priv->fw_ready) |
446 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
447 | else if (priv->dnld_sent) |
448 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
449 | else if (priv->tx_pending_len > 0) |
450 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
451 | else if (priv->resp_len[priv->resp_idx]) |
452 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
453 | else if (priv->cur_cmd) |
454 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
455 | else if (!list_empty(&priv->cmdpendingq) && |
456 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 457 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 458 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 459 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
460 | else |
461 | shouldsleep = 1; /* No command */ | |
462 | ||
463 | if (shouldsleep) { | |
7919b89c | 464 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 465 | "psmode %d, psstate %d\n", |
7919b89c HS |
466 | priv->connect_status, |
467 | priv->psmode, priv->psstate); | |
aa21c004 | 468 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
469 | schedule(); |
470 | } else | |
aa21c004 | 471 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 472 | |
7919b89c HS |
473 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
474 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
475 | |
476 | set_current_state(TASK_RUNNING); | |
fe336150 | 477 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 478 | |
7919b89c HS |
479 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
480 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 481 | |
d9f88705 | 482 | if (kthread_should_stop()) { |
7919b89c | 483 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
484 | break; |
485 | } | |
486 | ||
d9f88705 DW |
487 | if (priv->surpriseremoved) { |
488 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
489 | continue; | |
490 | } | |
876c9d3a | 491 | |
7919b89c HS |
492 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
493 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 494 | |
7919b89c | 495 | /* Process any pending command response */ |
a01f5450 | 496 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
497 | resp_idx = priv->resp_idx; |
498 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 499 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
500 | lbs_process_command_response(priv, |
501 | priv->resp_buf[resp_idx], | |
502 | priv->resp_len[resp_idx]); | |
aa21c004 | 503 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 504 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 505 | } |
7919b89c | 506 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 507 | |
49125454 AK |
508 | /* Process hardware events, e.g. card removed, link lost */ |
509 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 510 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 511 | u32 event; |
7acd72eb | 512 | |
9842c38e SS |
513 | if (kfifo_out(&priv->event_fifo, |
514 | (unsigned char *) &event, sizeof(event)) != | |
515 | sizeof(event)) | |
516 | break; | |
49125454 AK |
517 | spin_unlock_irq(&priv->driver_lock); |
518 | lbs_process_event(priv, event); | |
519 | spin_lock_irq(&priv->driver_lock); | |
520 | } | |
521 | spin_unlock_irq(&priv->driver_lock); | |
522 | ||
523 | if (priv->wakeup_dev_required) { | |
524 | lbs_deb_thread("Waking up device...\n"); | |
525 | /* Wake up device */ | |
526 | if (priv->exit_deep_sleep(priv)) | |
527 | lbs_deb_thread("Wakeup device failed\n"); | |
528 | continue; | |
529 | } | |
530 | ||
7919b89c | 531 | /* command timeout stuff */ |
2a345099 DW |
532 | if (priv->cmd_timed_out && priv->cur_cmd) { |
533 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
534 | ||
f3a57fd1 JP |
535 | netdev_info(dev, "Timeout submitting command 0x%04x\n", |
536 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
40e6fa82 HS |
537 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); |
538 | if (priv->reset_card) | |
539 | priv->reset_card(priv); | |
2a345099 DW |
540 | } |
541 | priv->cmd_timed_out = 0; | |
542 | ||
b15152a4 DW |
543 | if (!priv->fw_ready) |
544 | continue; | |
545 | ||
876c9d3a | 546 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
547 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
548 | !priv->dnld_sent && !priv->cur_cmd) { | |
549 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
550 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
551 | "dnld_sent %d, cur_cmd %p\n", | |
552 | priv->currenttxskb, priv->dnld_sent, | |
553 | priv->cur_cmd); | |
59f3e4bf | 554 | |
d4ff0ef6 | 555 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
556 | } else { |
557 | /* workaround for firmware sending | |
558 | * deauth/linkloss event immediately | |
559 | * after sleep request; remove this | |
560 | * after firmware fixes it | |
561 | */ | |
aa21c004 | 562 | priv->psstate = PS_STATE_AWAKE; |
f3a57fd1 JP |
563 | netdev_alert(dev, |
564 | "ignore PS_SleepConfirm in non-connected state\n"); | |
876c9d3a MT |
565 | } |
566 | } | |
567 | ||
568 | /* The PS state is changed during processing of Sleep Request | |
569 | * event above | |
570 | */ | |
aa21c004 DW |
571 | if ((priv->psstate == PS_STATE_SLEEP) || |
572 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
573 | continue; |
574 | ||
49125454 AK |
575 | if (priv->is_deep_sleep) |
576 | continue; | |
577 | ||
876c9d3a | 578 | /* Execute the next command */ |
aa21c004 | 579 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 580 | lbs_execute_next_command(priv); |
876c9d3a | 581 | |
2eb188a1 DW |
582 | spin_lock_irq(&priv->driver_lock); |
583 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
584 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
585 | priv->tx_pending_buf, | |
586 | priv->tx_pending_len); | |
587 | if (ret) { | |
588 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
589 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
8f641d93 DD |
590 | } else { |
591 | mod_timer(&priv->tx_lockup_timer, | |
592 | jiffies + (HZ * 5)); | |
2eb188a1 DW |
593 | } |
594 | priv->tx_pending_len = 0; | |
595 | if (!priv->currenttxskb) { | |
596 | /* We can wake the queues immediately if we aren't | |
597 | waiting for TX feedback */ | |
598 | if (priv->connect_status == LBS_CONNECTED) | |
599 | netif_wake_queue(priv->dev); | |
600 | if (priv->mesh_dev && | |
d9319986 | 601 | netif_running(priv->mesh_dev)) |
2eb188a1 DW |
602 | netif_wake_queue(priv->mesh_dev); |
603 | } | |
604 | } | |
605 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
606 | } |
607 | ||
aa21c004 | 608 | del_timer(&priv->command_timer); |
8f641d93 | 609 | del_timer(&priv->tx_lockup_timer); |
49125454 | 610 | del_timer(&priv->auto_deepsleep_timer); |
876c9d3a | 611 | |
9012b28a | 612 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
613 | return 0; |
614 | } | |
615 | ||
75abde4d | 616 | /** |
8973a6e7 RD |
617 | * lbs_setup_firmware - gets the HW spec from the firmware and sets |
618 | * some basic parameters | |
75abde4d | 619 | * |
8973a6e7 RD |
620 | * @priv: A pointer to &struct lbs_private structure |
621 | * returns: 0 or -1 | |
75abde4d VK |
622 | */ |
623 | static int lbs_setup_firmware(struct lbs_private *priv) | |
624 | { | |
625 | int ret = -1; | |
626 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; | |
627 | ||
628 | lbs_deb_enter(LBS_DEB_FW); | |
629 | ||
630 | /* Read MAC address from firmware */ | |
631 | memset(priv->current_addr, 0xff, ETH_ALEN); | |
632 | ret = lbs_update_hw_spec(priv); | |
633 | if (ret) | |
634 | goto done; | |
635 | ||
636 | /* Read power levels if available */ | |
637 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
638 | if (ret == 0) { | |
639 | priv->txpower_cur = curlevel; | |
640 | priv->txpower_min = minlevel; | |
641 | priv->txpower_max = maxlevel; | |
642 | } | |
643 | ||
644 | /* Send cmd to FW to enable 11D function */ | |
645 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1); | |
646 | ||
647 | lbs_set_mac_control(priv); | |
648 | done: | |
649 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
650 | return ret; | |
651 | } | |
652 | ||
ab25ecae DW |
653 | int lbs_suspend(struct lbs_private *priv) |
654 | { | |
ab25ecae DW |
655 | int ret; |
656 | ||
61d30020 HS |
657 | lbs_deb_enter(LBS_DEB_FW); |
658 | ||
66fceb69 AK |
659 | if (priv->is_deep_sleep) { |
660 | ret = lbs_set_deep_sleep(priv, 0); | |
661 | if (ret) { | |
f3a57fd1 JP |
662 | netdev_err(priv->dev, |
663 | "deep sleep cancellation failed: %d\n", ret); | |
66fceb69 AK |
664 | return ret; |
665 | } | |
666 | priv->deep_sleep_required = 1; | |
506e9025 DW |
667 | } |
668 | ||
1311843c | 669 | ret = lbs_set_host_sleep(priv, 1); |
7e226272 | 670 | |
66fceb69 AK |
671 | netif_device_detach(priv->dev); |
672 | if (priv->mesh_dev) | |
673 | netif_device_detach(priv->mesh_dev); | |
ab25ecae | 674 | |
61d30020 | 675 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
676 | return ret; |
677 | } | |
678 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
679 | ||
66fceb69 | 680 | int lbs_resume(struct lbs_private *priv) |
ab25ecae | 681 | { |
66fceb69 | 682 | int ret; |
61d30020 | 683 | |
66fceb69 | 684 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae | 685 | |
1311843c | 686 | ret = lbs_set_host_sleep(priv, 0); |
ab25ecae DW |
687 | |
688 | netif_device_attach(priv->dev); | |
689 | if (priv->mesh_dev) | |
690 | netif_device_attach(priv->mesh_dev); | |
691 | ||
66fceb69 AK |
692 | if (priv->deep_sleep_required) { |
693 | priv->deep_sleep_required = 0; | |
694 | ret = lbs_set_deep_sleep(priv, 1); | |
695 | if (ret) | |
f3a57fd1 JP |
696 | netdev_err(priv->dev, |
697 | "deep sleep activation failed: %d\n", ret); | |
66fceb69 AK |
698 | } |
699 | ||
75abde4d VK |
700 | if (priv->setup_fw_on_resume) |
701 | ret = lbs_setup_firmware(priv); | |
87c8c72d | 702 | |
1df4e8fe HS |
703 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
704 | return ret; | |
705 | } | |
75abde4d | 706 | EXPORT_SYMBOL_GPL(lbs_resume); |
1df4e8fe | 707 | |
1df4e8fe | 708 | /** |
8973a6e7 RD |
709 | * lbs_cmd_timeout_handler - handles the timeout of command sending. |
710 | * It will re-send the same command again. | |
711 | * | |
712 | * @data: &struct lbs_private pointer | |
1df4e8fe | 713 | */ |
40e6fa82 | 714 | static void lbs_cmd_timeout_handler(unsigned long data) |
1df4e8fe | 715 | { |
69f9032d | 716 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
717 | unsigned long flags; |
718 | ||
61d30020 | 719 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 720 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 721 | |
57962f0b | 722 | if (!priv->cur_cmd) |
2a345099 | 723 | goto out; |
1df4e8fe | 724 | |
f3a57fd1 JP |
725 | netdev_info(priv->dev, "command 0x%04x timed out\n", |
726 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 727 | |
2a345099 | 728 | priv->cmd_timed_out = 1; |
df90d843 DD |
729 | |
730 | /* | |
731 | * If the device didn't even acknowledge the command, reset the state | |
732 | * so that we don't block all future commands due to this one timeout. | |
733 | */ | |
734 | if (priv->dnld_sent == DNLD_CMD_SENT) | |
735 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
736 | ||
d2e7b342 | 737 | wake_up(&priv->waitq); |
61d30020 | 738 | out: |
2a345099 | 739 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 740 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
741 | } |
742 | ||
8f641d93 DD |
743 | /** |
744 | * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames | |
745 | * to the hardware. This is known to frequently happen with SD8686 when | |
746 | * waking up after a Wake-on-WLAN-triggered resume. | |
747 | * | |
748 | * @data: &struct lbs_private pointer | |
749 | */ | |
750 | static void lbs_tx_lockup_handler(unsigned long data) | |
751 | { | |
752 | struct lbs_private *priv = (struct lbs_private *)data; | |
753 | unsigned long flags; | |
754 | ||
755 | lbs_deb_enter(LBS_DEB_TX); | |
756 | spin_lock_irqsave(&priv->driver_lock, flags); | |
757 | ||
758 | netdev_info(priv->dev, "TX lockup detected\n"); | |
759 | if (priv->reset_card) | |
760 | priv->reset_card(priv); | |
761 | ||
762 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
763 | wake_up_interruptible(&priv->waitq); | |
764 | ||
765 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
766 | lbs_deb_leave(LBS_DEB_TX); | |
767 | } | |
768 | ||
49125454 | 769 | /** |
8973a6e7 RD |
770 | * auto_deepsleep_timer_fn - put the device back to deep sleep mode when |
771 | * timer expires and no activity (command, event, data etc.) is detected. | |
772 | * @data: &struct lbs_private pointer | |
773 | * returns: N/A | |
49125454 AK |
774 | */ |
775 | static void auto_deepsleep_timer_fn(unsigned long data) | |
776 | { | |
777 | struct lbs_private *priv = (struct lbs_private *)data; | |
49125454 AK |
778 | |
779 | lbs_deb_enter(LBS_DEB_CMD); | |
780 | ||
781 | if (priv->is_activity_detected) { | |
782 | priv->is_activity_detected = 0; | |
783 | } else { | |
784 | if (priv->is_auto_deep_sleep_enabled && | |
53800f5d DW |
785 | (!priv->wakeup_dev_required) && |
786 | (priv->connect_status != LBS_CONNECTED)) { | |
787 | struct cmd_header cmd; | |
788 | ||
49125454 | 789 | lbs_deb_main("Entering auto deep sleep mode...\n"); |
53800f5d DW |
790 | memset(&cmd, 0, sizeof(cmd)); |
791 | cmd.size = cpu_to_le16(sizeof(cmd)); | |
792 | lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd, | |
793 | sizeof(cmd)); | |
49125454 AK |
794 | } |
795 | } | |
796 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
797 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
798 | lbs_deb_leave(LBS_DEB_CMD); | |
799 | } | |
800 | ||
801 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
802 | { | |
803 | lbs_deb_enter(LBS_DEB_SDIO); | |
804 | ||
805 | priv->is_auto_deep_sleep_enabled = 1; | |
806 | if (priv->is_deep_sleep) | |
807 | priv->wakeup_dev_required = 1; | |
808 | mod_timer(&priv->auto_deepsleep_timer , | |
809 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
810 | ||
811 | lbs_deb_leave(LBS_DEB_SDIO); | |
812 | return 0; | |
813 | } | |
814 | ||
815 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
816 | { | |
817 | lbs_deb_enter(LBS_DEB_SDIO); | |
818 | ||
819 | priv->is_auto_deep_sleep_enabled = 0; | |
820 | priv->auto_deep_sleep_timeout = 0; | |
821 | del_timer(&priv->auto_deepsleep_timer); | |
822 | ||
823 | lbs_deb_leave(LBS_DEB_SDIO); | |
824 | return 0; | |
825 | } | |
826 | ||
69f9032d | 827 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 828 | { |
e86dc1ca | 829 | int ret; |
1df4e8fe | 830 | |
61d30020 HS |
831 | lbs_deb_enter(LBS_DEB_MAIN); |
832 | ||
aa21c004 | 833 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 834 | |
aa21c004 | 835 | priv->connect_status = LBS_DISCONNECTED; |
c14951fe | 836 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 837 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 838 | priv->radio_on = 1; |
aa21c004 DW |
839 | priv->psmode = LBS802_11POWERMODECAM; |
840 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
841 | priv->is_deep_sleep = 0; |
842 | priv->is_auto_deep_sleep_enabled = 0; | |
66fceb69 | 843 | priv->deep_sleep_required = 0; |
49125454 AK |
844 | priv->wakeup_dev_required = 0; |
845 | init_waitqueue_head(&priv->ds_awake_q); | |
cc026819 | 846 | init_waitqueue_head(&priv->scan_q); |
921ca03c | 847 | priv->authtype_auto = 1; |
66fceb69 AK |
848 | priv->is_host_sleep_configured = 0; |
849 | priv->is_host_sleep_activated = 0; | |
850 | init_waitqueue_head(&priv->host_sleep_q); | |
aa21c004 | 851 | mutex_init(&priv->lock); |
1df4e8fe | 852 | |
40e6fa82 | 853 | setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, |
61d30020 | 854 | (unsigned long)priv); |
8f641d93 DD |
855 | setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler, |
856 | (unsigned long)priv); | |
49125454 AK |
857 | setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, |
858 | (unsigned long)priv); | |
1df4e8fe | 859 | |
aa21c004 DW |
860 | INIT_LIST_HEAD(&priv->cmdfreeq); |
861 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
1df4e8fe | 862 | |
aa21c004 | 863 | spin_lock_init(&priv->driver_lock); |
1df4e8fe | 864 | |
954ee164 | 865 | /* Allocate the command buffers */ |
10078321 | 866 | if (lbs_allocate_cmd_buffer(priv)) { |
0e4e06ae | 867 | pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
868 | ret = -ENOMEM; |
869 | goto out; | |
870 | } | |
871 | priv->resp_idx = 0; | |
872 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
873 | ||
874 | /* Create the event FIFO */ | |
c1e13f25 | 875 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 876 | if (ret) { |
0e4e06ae | 877 | pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 878 | goto out; |
954ee164 | 879 | } |
1df4e8fe | 880 | |
954ee164 | 881 | out: |
61d30020 HS |
882 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
883 | ||
954ee164 DW |
884 | return ret; |
885 | } | |
1df4e8fe | 886 | |
69f9032d | 887 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 888 | { |
61d30020 | 889 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 890 | |
61d30020 | 891 | lbs_free_cmd_buffer(priv); |
45465487 | 892 | kfifo_free(&priv->event_fifo); |
aa21c004 | 893 | del_timer(&priv->command_timer); |
8f641d93 | 894 | del_timer(&priv->tx_lockup_timer); |
49125454 | 895 | del_timer(&priv->auto_deepsleep_timer); |
61d30020 HS |
896 | |
897 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
898 | } |
899 | ||
f02abf10 SH |
900 | static const struct net_device_ops lbs_netdev_ops = { |
901 | .ndo_open = lbs_dev_open, | |
902 | .ndo_stop = lbs_eth_stop, | |
903 | .ndo_start_xmit = lbs_hard_start_xmit, | |
904 | .ndo_set_mac_address = lbs_set_mac_address, | |
f02abf10 SH |
905 | .ndo_set_multicast_list = lbs_set_multicast_list, |
906 | .ndo_change_mtu = eth_change_mtu, | |
907 | .ndo_validate_addr = eth_validate_addr, | |
908 | }; | |
909 | ||
876c9d3a | 910 | /** |
8973a6e7 | 911 | * lbs_add_card - adds the card. It will probe the |
10078321 | 912 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a | 913 | * |
8973a6e7 RD |
914 | * @card: A pointer to card |
915 | * @dmdev: A pointer to &struct device | |
916 | * returns: A pointer to &struct lbs_private structure | |
876c9d3a | 917 | */ |
69f9032d | 918 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 919 | { |
ff9fc791 HS |
920 | struct net_device *dev; |
921 | struct wireless_dev *wdev; | |
69f9032d | 922 | struct lbs_private *priv = NULL; |
876c9d3a | 923 | |
61d30020 | 924 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
925 | |
926 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
927 | wdev = lbs_cfg_alloc(dmdev); |
928 | if (IS_ERR(wdev)) { | |
0e4e06ae | 929 | pr_err("cfg80211 init failed\n"); |
954ee164 | 930 | goto done; |
876c9d3a | 931 | } |
e86dc1ca | 932 | |
ff9fc791 HS |
933 | wdev->iftype = NL80211_IFTYPE_STATION; |
934 | priv = wdev_priv(wdev); | |
935 | priv->wdev = wdev; | |
876c9d3a | 936 | |
10078321 | 937 | if (lbs_init_adapter(priv)) { |
0e4e06ae | 938 | pr_err("failed to initialize adapter structure\n"); |
ff9fc791 HS |
939 | goto err_wdev; |
940 | } | |
941 | ||
ff9fc791 HS |
942 | dev = alloc_netdev(0, "wlan%d", ether_setup); |
943 | if (!dev) { | |
944 | dev_err(dmdev, "no memory for network device instance\n"); | |
945 | goto err_adapter; | |
954ee164 DW |
946 | } |
947 | ||
ff9fc791 HS |
948 | dev->ieee80211_ptr = wdev; |
949 | dev->ml_priv = priv; | |
950 | SET_NETDEV_DEV(dev, dmdev); | |
951 | wdev->netdev = dev; | |
634b8f49 | 952 | priv->dev = dev; |
876c9d3a | 953 | |
f02abf10 | 954 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 955 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 956 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 957 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 958 | |
ff9fc791 | 959 | priv->card = card; |
7732ca45 | 960 | |
c00552c6 | 961 | strcpy(dev->name, "wlan%d"); |
954ee164 DW |
962 | |
963 | lbs_deb_thread("Starting main thread...\n"); | |
964 | init_waitqueue_head(&priv->waitq); | |
10078321 | 965 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
954ee164 DW |
966 | if (IS_ERR(priv->main_thread)) { |
967 | lbs_deb_thread("Error creating main thread.\n"); | |
ff9fc791 | 968 | goto err_ndev; |
954ee164 DW |
969 | } |
970 | ||
10078321 | 971 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
75bf45a7 | 972 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
23a397ac | 973 | |
ae63a33e | 974 | priv->wol_criteria = EHS_REMOVE_WAKEUP; |
506e9025 | 975 | priv->wol_gpio = 0xff; |
66fceb69 | 976 | priv->wol_gap = 20; |
ae63a33e | 977 | priv->ehs_remove_supported = true; |
506e9025 | 978 | |
32a74b7c HS |
979 | goto done; |
980 | ||
ff9fc791 | 981 | err_ndev: |
32a74b7c | 982 | free_netdev(dev); |
ff9fc791 HS |
983 | |
984 | err_adapter: | |
985 | lbs_free_adapter(priv); | |
986 | ||
987 | err_wdev: | |
988 | lbs_cfg_free(priv); | |
989 | ||
6a812157 | 990 | priv = NULL; |
954ee164 | 991 | |
32a74b7c | 992 | done: |
61d30020 | 993 | lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); |
32a74b7c HS |
994 | return priv; |
995 | } | |
10078321 | 996 | EXPORT_SYMBOL_GPL(lbs_add_card); |
32a74b7c | 997 | |
954ee164 | 998 | |
a63e5cb2 | 999 | void lbs_remove_card(struct lbs_private *priv) |
32a74b7c | 1000 | { |
634b8f49 | 1001 | struct net_device *dev = priv->dev; |
32a74b7c HS |
1002 | |
1003 | lbs_deb_enter(LBS_DEB_MAIN); | |
876c9d3a | 1004 | |
23a397ac | 1005 | lbs_remove_mesh(priv); |
e86dc1ca | 1006 | lbs_scan_deinit(priv); |
876c9d3a | 1007 | |
71b35f3a DW |
1008 | /* worker thread destruction blocks on the in-flight command which |
1009 | * should have been cleared already in lbs_stop_card(). | |
1010 | */ | |
1011 | lbs_deb_main("destroying worker thread\n"); | |
954ee164 | 1012 | destroy_workqueue(priv->work_thread); |
71b35f3a | 1013 | lbs_deb_main("done destroying worker thread\n"); |
876c9d3a | 1014 | |
aa21c004 DW |
1015 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
1016 | priv->psmode = LBS802_11POWERMODECAM; | |
0bb64087 | 1017 | lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); |
876c9d3a MT |
1018 | } |
1019 | ||
49125454 AK |
1020 | if (priv->is_deep_sleep) { |
1021 | priv->is_deep_sleep = 0; | |
1022 | wake_up_interruptible(&priv->ds_awake_q); | |
1023 | } | |
1024 | ||
66fceb69 AK |
1025 | priv->is_host_sleep_configured = 0; |
1026 | priv->is_host_sleep_activated = 0; | |
1027 | wake_up_interruptible(&priv->host_sleep_q); | |
1028 | ||
954ee164 | 1029 | /* Stop the thread servicing the interrupts */ |
aa21c004 | 1030 | priv->surpriseremoved = 1; |
954ee164 DW |
1031 | kthread_stop(priv->main_thread); |
1032 | ||
10078321 | 1033 | lbs_free_adapter(priv); |
ff9fc791 | 1034 | lbs_cfg_free(priv); |
954ee164 DW |
1035 | free_netdev(dev); |
1036 | ||
1037 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 1038 | } |
10078321 | 1039 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
1040 | |
1041 | ||
e86dc1ca | 1042 | int lbs_rtap_supported(struct lbs_private *priv) |
cd74468b HS |
1043 | { |
1044 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) | |
1045 | return 1; | |
1046 | ||
1047 | /* newer firmware use a capability mask */ | |
1048 | return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && | |
1049 | (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); | |
1050 | } | |
1051 | ||
1052 | ||
69f9032d | 1053 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
1054 | { |
1055 | struct net_device *dev = priv->dev; | |
1056 | int ret = -1; | |
1057 | ||
1058 | lbs_deb_enter(LBS_DEB_MAIN); | |
1059 | ||
1060 | /* poke the firmware */ | |
10078321 | 1061 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
1062 | if (ret) |
1063 | goto done; | |
1064 | ||
49fee692 DD |
1065 | if (!lbs_disablemesh) |
1066 | lbs_init_mesh(priv); | |
1067 | else | |
1068 | pr_info("%s: mesh disabled\n", dev->name); | |
1069 | ||
ff9fc791 | 1070 | if (lbs_cfg_register(priv)) { |
0e4e06ae | 1071 | pr_err("cannot register device\n"); |
954ee164 | 1072 | goto done; |
876c9d3a | 1073 | } |
020f3d00 | 1074 | |
49fee692 DD |
1075 | if (lbs_mesh_activated(priv)) |
1076 | lbs_start_mesh(priv); | |
020f3d00 | 1077 | |
10078321 | 1078 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 1079 | |
f3a57fd1 | 1080 | netdev_info(dev, "Marvell WLAN 802.11 adapter\n"); |
954ee164 | 1081 | |
32a74b7c | 1082 | ret = 0; |
876c9d3a | 1083 | |
32a74b7c | 1084 | done: |
954ee164 DW |
1085 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
1086 | return ret; | |
1087 | } | |
10078321 | 1088 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
1089 | |
1090 | ||
a63e5cb2 | 1091 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 1092 | { |
43baa5bb | 1093 | struct net_device *dev; |
954ee164 DW |
1094 | |
1095 | lbs_deb_enter(LBS_DEB_MAIN); | |
1096 | ||
652e3f20 HS |
1097 | if (!priv) |
1098 | goto out; | |
43baa5bb | 1099 | dev = priv->dev; |
652e3f20 | 1100 | |
43baa5bb JL |
1101 | netif_stop_queue(dev); |
1102 | netif_carrier_off(dev); | |
954ee164 | 1103 | |
10078321 | 1104 | lbs_debugfs_remove_one(priv); |
cd74468b | 1105 | lbs_deinit_mesh(priv); |
954ee164 DW |
1106 | unregister_netdev(dev); |
1107 | ||
652e3f20 | 1108 | out: |
a63e5cb2 | 1109 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1110 | } |
10078321 | 1111 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1112 | |
876c9d3a | 1113 | |
7919b89c HS |
1114 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1115 | { | |
1116 | unsigned long flags; | |
1117 | ||
1118 | lbs_deb_enter(LBS_DEB_THREAD); | |
1119 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1120 | ||
1121 | if (priv->psstate == PS_STATE_SLEEP) | |
1122 | priv->psstate = PS_STATE_AWAKE; | |
1123 | ||
7acd72eb | 1124 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c | 1125 | |
d2e7b342 | 1126 | wake_up(&priv->waitq); |
7919b89c HS |
1127 | |
1128 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1129 | lbs_deb_leave(LBS_DEB_THREAD); | |
1130 | } | |
1131 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1132 | ||
1133 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1134 | { |
ed37b516 | 1135 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1136 | |
4f679496 | 1137 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1138 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1139 | |
1140 | /* Swap buffers by flipping the response index */ | |
1141 | BUG_ON(resp_idx > 1); | |
1142 | priv->resp_idx = resp_idx; | |
1143 | ||
d2e7b342 | 1144 | wake_up(&priv->waitq); |
876c9d3a | 1145 | |
ed37b516 | 1146 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1147 | } |
7919b89c | 1148 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1149 | |
72f7a667 | 1150 | /** |
8973a6e7 | 1151 | * lbs_get_firmware - Retrieves two-stage firmware |
72f7a667 | 1152 | * |
8973a6e7 RD |
1153 | * @dev: A pointer to &device structure |
1154 | * @user_helper: User-defined helper firmware file | |
1155 | * @user_mainfw: User-defined main firmware file | |
1156 | * @card_model: Bus-specific card model ID used to filter firmware table | |
1157 | * elements | |
1158 | * @fw_table: Table of firmware file names and device model numbers | |
1159 | * terminated by an entry with a NULL helper name | |
1160 | * @helper: On success, the helper firmware; caller must free | |
1161 | * @mainfw: On success, the main firmware; caller must free | |
72f7a667 | 1162 | * |
8973a6e7 | 1163 | * returns: 0 on success, non-zero on failure |
72f7a667 DW |
1164 | */ |
1165 | int lbs_get_firmware(struct device *dev, const char *user_helper, | |
1166 | const char *user_mainfw, u32 card_model, | |
1167 | const struct lbs_fw_table *fw_table, | |
1168 | const struct firmware **helper, | |
1169 | const struct firmware **mainfw) | |
1170 | { | |
1171 | const struct lbs_fw_table *iter; | |
1172 | int ret; | |
1173 | ||
1174 | BUG_ON(helper == NULL); | |
1175 | BUG_ON(mainfw == NULL); | |
1176 | ||
1177 | /* Try user-specified firmware first */ | |
1178 | if (user_helper) { | |
1179 | ret = request_firmware(helper, user_helper, dev); | |
1180 | if (ret) { | |
f3a57fd1 JP |
1181 | dev_err(dev, "couldn't find helper firmware %s\n", |
1182 | user_helper); | |
72f7a667 DW |
1183 | goto fail; |
1184 | } | |
1185 | } | |
1186 | if (user_mainfw) { | |
1187 | ret = request_firmware(mainfw, user_mainfw, dev); | |
1188 | if (ret) { | |
f3a57fd1 JP |
1189 | dev_err(dev, "couldn't find main firmware %s\n", |
1190 | user_mainfw); | |
72f7a667 DW |
1191 | goto fail; |
1192 | } | |
1193 | } | |
1194 | ||
1195 | if (*helper && *mainfw) | |
1196 | return 0; | |
1197 | ||
1198 | /* Otherwise search for firmware to use. If neither the helper or | |
1199 | * the main firmware were specified by the user, then we need to | |
1200 | * make sure that found helper & main are from the same entry in | |
1201 | * fw_table. | |
1202 | */ | |
1203 | iter = fw_table; | |
1204 | while (iter && iter->helper) { | |
1205 | if (iter->model != card_model) | |
1206 | goto next; | |
1207 | ||
1208 | if (*helper == NULL) { | |
1209 | ret = request_firmware(helper, iter->helper, dev); | |
1210 | if (ret) | |
1211 | goto next; | |
1212 | ||
1213 | /* If the device has one-stage firmware (ie cf8305) and | |
1214 | * we've got it then we don't need to bother with the | |
1215 | * main firmware. | |
1216 | */ | |
1217 | if (iter->fwname == NULL) | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | if (*mainfw == NULL) { | |
1222 | ret = request_firmware(mainfw, iter->fwname, dev); | |
1223 | if (ret && !user_helper) { | |
1224 | /* Clear the helper if it wasn't user-specified | |
1225 | * and the main firmware load failed, to ensure | |
1226 | * we don't have mismatched firmware pairs. | |
1227 | */ | |
1228 | release_firmware(*helper); | |
1229 | *helper = NULL; | |
1230 | } | |
1231 | } | |
1232 | ||
1233 | if (*helper && *mainfw) | |
1234 | return 0; | |
1235 | ||
1236 | next: | |
1237 | iter++; | |
1238 | } | |
1239 | ||
1240 | fail: | |
1241 | /* Failed */ | |
1242 | if (*helper) { | |
1243 | release_firmware(*helper); | |
1244 | *helper = NULL; | |
1245 | } | |
1246 | if (*mainfw) { | |
1247 | release_firmware(*mainfw); | |
1248 | *mainfw = NULL; | |
1249 | } | |
1250 | ||
1251 | return -ENOENT; | |
1252 | } | |
1253 | EXPORT_SYMBOL_GPL(lbs_get_firmware); | |
1254 | ||
4fb910fd | 1255 | static int __init lbs_init_module(void) |
876c9d3a | 1256 | { |
9012b28a | 1257 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1258 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1259 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1260 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
0bb64087 | 1261 | confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED); |
10078321 | 1262 | lbs_debugfs_init(); |
084708b6 HS |
1263 | lbs_deb_leave(LBS_DEB_MAIN); |
1264 | return 0; | |
876c9d3a MT |
1265 | } |
1266 | ||
4fb910fd | 1267 | static void __exit lbs_exit_module(void) |
876c9d3a | 1268 | { |
9012b28a | 1269 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1270 | lbs_debugfs_remove(); |
9012b28a | 1271 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1272 | } |
1273 | ||
10078321 HS |
1274 | module_init(lbs_init_module); |
1275 | module_exit(lbs_exit_module); | |
876c9d3a | 1276 | |
084708b6 | 1277 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1278 | MODULE_AUTHOR("Marvell International Ltd."); |
1279 | MODULE_LICENSE("GPL"); |