]>
Commit | Line | Data |
---|---|---|
876c9d3a MT |
1 | /** |
2 | * This file contains the major functions in WLAN | |
3 | * driver. It includes init, exit, open, close and main | |
4 | * thread etc.. | |
5 | */ | |
6 | ||
a46c6410 | 7 | #include <linux/moduleparam.h> |
876c9d3a | 8 | #include <linux/delay.h> |
876c9d3a MT |
9 | #include <linux/etherdevice.h> |
10 | #include <linux/netdevice.h> | |
11 | #include <linux/if_arp.h> | |
fe336150 | 12 | #include <linux/kthread.h> |
7919b89c | 13 | #include <linux/kfifo.h> |
75bf45a7 | 14 | #include <linux/stddef.h> |
2c706002 | 15 | #include <linux/ieee80211.h> |
5a0e3ad6 | 16 | #include <linux/slab.h> |
876c9d3a | 17 | #include <net/iw_handler.h> |
ff9fc791 | 18 | #include <net/cfg80211.h> |
876c9d3a MT |
19 | |
20 | #include "host.h" | |
876c9d3a MT |
21 | #include "decl.h" |
22 | #include "dev.h" | |
876c9d3a | 23 | #include "wext.h" |
ff9fc791 | 24 | #include "cfg.h" |
876c9d3a | 25 | #include "debugfs.h" |
245bf20f | 26 | #include "scan.h" |
876c9d3a | 27 | #include "assoc.h" |
6e66f03f | 28 | #include "cmd.h" |
876c9d3a | 29 | |
7856a541 | 30 | #define DRIVER_RELEASE_VERSION "323.p0" |
10078321 | 31 | const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION |
3ce40232 DW |
32 | #ifdef DEBUG |
33 | "-dbg" | |
34 | #endif | |
35 | ""; | |
36 | ||
a46c6410 HS |
37 | |
38 | /* Module parameters */ | |
10078321 HS |
39 | unsigned int lbs_debug; |
40 | EXPORT_SYMBOL_GPL(lbs_debug); | |
41 | module_param_named(libertas_debug, lbs_debug, int, 0644); | |
a46c6410 HS |
42 | |
43 | ||
f539f2ef HS |
44 | /* This global structure is used to send the confirm_sleep command as |
45 | * fast as possible down to the firmware. */ | |
46 | struct cmd_confirm_sleep confirm_sleep; | |
47 | ||
48 | ||
876c9d3a | 49 | /** |
8c512765 | 50 | * the table to keep region code |
876c9d3a | 51 | */ |
10078321 | 52 | u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
8c512765 | 53 | { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; |
876c9d3a | 54 | |
876c9d3a | 55 | /** |
8c512765 DW |
56 | * FW rate table. FW refers to rates by their index in this table, not by the |
57 | * rate value itself. Values of 0x00 are | |
58 | * reserved positions. | |
876c9d3a | 59 | */ |
8c512765 DW |
60 | static u8 fw_data_rates[MAX_RATES] = |
61 | { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, | |
62 | 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 | |
63 | }; | |
876c9d3a | 64 | |
876c9d3a | 65 | /** |
8c512765 DW |
66 | * @brief use index to get the data rate |
67 | * | |
68 | * @param idx The index of data rate | |
69 | * @return data rate or 0 | |
876c9d3a | 70 | */ |
10078321 | 71 | u32 lbs_fw_index_to_data_rate(u8 idx) |
8c512765 DW |
72 | { |
73 | if (idx >= sizeof(fw_data_rates)) | |
74 | idx = 0; | |
75 | return fw_data_rates[idx]; | |
76 | } | |
77 | ||
78 | /** | |
79 | * @brief use rate to get the index | |
80 | * | |
81 | * @param rate data rate | |
82 | * @return index or 0 | |
83 | */ | |
10078321 | 84 | u8 lbs_data_rate_to_fw_index(u32 rate) |
8c512765 DW |
85 | { |
86 | u8 i; | |
87 | ||
88 | if (!rate) | |
89 | return 0; | |
90 | ||
91 | for (i = 0; i < sizeof(fw_data_rates); i++) { | |
92 | if (rate == fw_data_rates[i]) | |
93 | return i; | |
94 | } | |
95 | return 0; | |
96 | } | |
876c9d3a | 97 | |
6fb53252 | 98 | |
2fd6cfe3 DW |
99 | static int lbs_add_rtap(struct lbs_private *priv); |
100 | static void lbs_remove_rtap(struct lbs_private *priv); | |
7e226272 | 101 | |
965f8bbc LCC |
102 | |
103 | /** | |
104 | * Get function for sysfs attribute rtap | |
105 | */ | |
10078321 | 106 | static ssize_t lbs_rtap_get(struct device *dev, |
965f8bbc LCC |
107 | struct device_attribute *attr, char * buf) |
108 | { | |
ab65f649 | 109 | struct lbs_private *priv = to_net_dev(dev)->ml_priv; |
aa21c004 | 110 | return snprintf(buf, 5, "0x%X\n", priv->monitormode); |
965f8bbc LCC |
111 | } |
112 | ||
113 | /** | |
114 | * Set function for sysfs attribute rtap | |
115 | */ | |
10078321 | 116 | static ssize_t lbs_rtap_set(struct device *dev, |
965f8bbc LCC |
117 | struct device_attribute *attr, const char * buf, size_t count) |
118 | { | |
119 | int monitor_mode; | |
ab65f649 | 120 | struct lbs_private *priv = to_net_dev(dev)->ml_priv; |
965f8bbc LCC |
121 | |
122 | sscanf(buf, "%x", &monitor_mode); | |
c2b310a7 HS |
123 | if (monitor_mode) { |
124 | if (priv->monitormode == monitor_mode) | |
965f8bbc | 125 | return strlen(buf); |
c2b310a7 | 126 | if (!priv->monitormode) { |
602114ae | 127 | if (priv->infra_open || lbs_mesh_open(priv)) |
8552855f | 128 | return -EBUSY; |
aa21c004 | 129 | if (priv->mode == IW_MODE_INFRA) |
191bb40e DW |
130 | lbs_cmd_80211_deauthenticate(priv, |
131 | priv->curbssparams.bssid, | |
132 | WLAN_REASON_DEAUTH_LEAVING); | |
aa21c004 | 133 | else if (priv->mode == IW_MODE_ADHOC) |
f5fe1fda | 134 | lbs_adhoc_stop(priv); |
10078321 | 135 | lbs_add_rtap(priv); |
965f8bbc | 136 | } |
aa21c004 | 137 | priv->monitormode = monitor_mode; |
3b72b01d | 138 | } else { |
c2b310a7 | 139 | if (!priv->monitormode) |
965f8bbc | 140 | return strlen(buf); |
c2b310a7 | 141 | priv->monitormode = 0; |
10078321 | 142 | lbs_remove_rtap(priv); |
f86a93e1 | 143 | |
aa21c004 DW |
144 | if (priv->currenttxskb) { |
145 | dev_kfree_skb_any(priv->currenttxskb); | |
146 | priv->currenttxskb = NULL; | |
f86a93e1 DW |
147 | } |
148 | ||
149 | /* Wake queues, command thread, etc. */ | |
150 | lbs_host_to_card_done(priv); | |
965f8bbc LCC |
151 | } |
152 | ||
10078321 | 153 | lbs_prepare_and_send_command(priv, |
965f8bbc | 154 | CMD_802_11_MONITOR_MODE, CMD_ACT_SET, |
aa21c004 | 155 | CMD_OPTION_WAITFORRSP, 0, &priv->monitormode); |
965f8bbc LCC |
156 | return strlen(buf); |
157 | } | |
158 | ||
159 | /** | |
23a397ac DW |
160 | * lbs_rtap attribute to be exported per ethX interface |
161 | * through sysfs (/sys/class/net/ethX/lbs_rtap) | |
965f8bbc | 162 | */ |
23a397ac DW |
163 | static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set ); |
164 | ||
165 | /** | |
e0e42da3 | 166 | * @brief This function opens the ethX interface |
876c9d3a MT |
167 | * |
168 | * @param dev A pointer to net_device structure | |
8552855f | 169 | * @return 0 or -EBUSY if monitor mode active |
876c9d3a | 170 | */ |
10078321 | 171 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 172 | { |
ab65f649 | 173 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 174 | int ret = 0; |
876c9d3a | 175 | |
61d30020 HS |
176 | lbs_deb_enter(LBS_DEB_NET); |
177 | ||
8552855f | 178 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 179 | |
c2b310a7 | 180 | if (priv->monitormode) { |
8552855f DW |
181 | ret = -EBUSY; |
182 | goto out; | |
183 | } | |
01d77d8d | 184 | |
e0e42da3 | 185 | priv->infra_open = 1; |
7e226272 | 186 | |
e0e42da3 HS |
187 | if (priv->connect_status == LBS_CONNECTED) |
188 | netif_carrier_on(dev); | |
189 | else | |
190 | netif_carrier_off(dev); | |
876c9d3a | 191 | |
8552855f DW |
192 | if (!priv->tx_pending_len) |
193 | netif_wake_queue(dev); | |
194 | out: | |
876c9d3a | 195 | |
8552855f | 196 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 197 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 198 | return ret; |
876c9d3a MT |
199 | } |
200 | ||
876c9d3a MT |
201 | /** |
202 | * @brief This function closes the ethX interface | |
203 | * | |
204 | * @param dev A pointer to net_device structure | |
205 | * @return 0 | |
206 | */ | |
8552855f | 207 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 208 | { |
ab65f649 | 209 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 210 | |
61d30020 | 211 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 212 | |
61d30020 | 213 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 214 | priv->infra_open = 0; |
8552855f | 215 | netif_stop_queue(dev); |
8552855f | 216 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 217 | |
75bf45a7 DW |
218 | schedule_work(&priv->mcast_work); |
219 | ||
61d30020 | 220 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 221 | return 0; |
876c9d3a MT |
222 | } |
223 | ||
10078321 | 224 | static void lbs_tx_timeout(struct net_device *dev) |
876c9d3a | 225 | { |
ab65f649 | 226 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 227 | |
9012b28a | 228 | lbs_deb_enter(LBS_DEB_TX); |
876c9d3a | 229 | |
9012b28a | 230 | lbs_pr_err("tx watch dog timeout\n"); |
876c9d3a | 231 | |
876c9d3a MT |
232 | dev->trans_start = jiffies; |
233 | ||
7919b89c HS |
234 | if (priv->currenttxskb) |
235 | lbs_send_tx_feedback(priv, 0); | |
236 | ||
a63b22bb DW |
237 | /* XX: Shouldn't we also call into the hw-specific driver |
238 | to kick it somehow? */ | |
239 | lbs_host_to_card_done(priv); | |
876c9d3a | 240 | |
354eca98 DW |
241 | /* More often than not, this actually happens because the |
242 | firmware has crapped itself -- rather than just a very | |
243 | busy medium. So send a harmless command, and if/when | |
244 | _that_ times out, we'll kick it in the head. */ | |
245 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, | |
246 | 0, 0, NULL); | |
247 | ||
9012b28a | 248 | lbs_deb_leave(LBS_DEB_TX); |
876c9d3a MT |
249 | } |
250 | ||
e775ed7c DW |
251 | void lbs_host_to_card_done(struct lbs_private *priv) |
252 | { | |
a63b22bb DW |
253 | unsigned long flags; |
254 | ||
61d30020 HS |
255 | lbs_deb_enter(LBS_DEB_THREAD); |
256 | ||
a63b22bb | 257 | spin_lock_irqsave(&priv->driver_lock, flags); |
e775ed7c DW |
258 | |
259 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
260 | ||
261 | /* Wake main thread if commands are pending */ | |
49125454 AK |
262 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
263 | if (!priv->wakeup_dev_required) | |
264 | wake_up_interruptible(&priv->waitq); | |
265 | } | |
e775ed7c | 266 | |
a63b22bb | 267 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 268 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
269 | } |
270 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
271 | ||
e0e42da3 | 272 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
273 | { |
274 | int ret = 0; | |
ab65f649 | 275 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 276 | struct sockaddr *phwaddr = addr; |
2af9f039 | 277 | struct cmd_ds_802_11_mac_address cmd; |
876c9d3a | 278 | |
9012b28a | 279 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 280 | |
0a0d08ac | 281 | /* In case it was called from the mesh device */ |
2af9f039 | 282 | dev = priv->dev; |
0a0d08ac | 283 | |
2af9f039 HS |
284 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
285 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
286 | memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN); | |
876c9d3a | 287 | |
2af9f039 | 288 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); |
876c9d3a | 289 | if (ret) { |
9012b28a | 290 | lbs_deb_net("set MAC address failed\n"); |
876c9d3a MT |
291 | goto done; |
292 | } | |
293 | ||
2af9f039 HS |
294 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
295 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 296 | if (priv->mesh_dev) |
2af9f039 | 297 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a MT |
298 | |
299 | done: | |
9012b28a | 300 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
301 | return ret; |
302 | } | |
303 | ||
75bf45a7 DW |
304 | |
305 | static inline int mac_in_list(unsigned char *list, int list_len, | |
306 | unsigned char *mac) | |
876c9d3a | 307 | { |
75bf45a7 DW |
308 | while (list_len) { |
309 | if (!memcmp(list, mac, ETH_ALEN)) | |
310 | return 1; | |
311 | list += ETH_ALEN; | |
312 | list_len--; | |
313 | } | |
314 | return 0; | |
315 | } | |
316 | ||
876c9d3a | 317 | |
75bf45a7 DW |
318 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
319 | struct net_device *dev, int nr_addrs) | |
320 | { | |
321 | int i = nr_addrs; | |
322 | struct dev_mc_list *mc_list; | |
655ffee2 | 323 | int cnt; |
75bf45a7 DW |
324 | |
325 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
326 | return nr_addrs; | |
327 | ||
b9e40857 | 328 | netif_addr_lock_bh(dev); |
655ffee2 JP |
329 | cnt = netdev_mc_count(dev); |
330 | netdev_for_each_mc_addr(mc_list, dev) { | |
75bf45a7 | 331 | if (mac_in_list(cmd->maclist, nr_addrs, mc_list->dmi_addr)) { |
e174961c JB |
332 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
333 | mc_list->dmi_addr); | |
655ffee2 | 334 | cnt--; |
75bf45a7 DW |
335 | continue; |
336 | } | |
876c9d3a | 337 | |
75bf45a7 DW |
338 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
339 | break; | |
340 | memcpy(&cmd->maclist[6*i], mc_list->dmi_addr, ETH_ALEN); | |
e174961c JB |
341 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
342 | mc_list->dmi_addr); | |
75bf45a7 | 343 | i++; |
655ffee2 | 344 | cnt--; |
876c9d3a | 345 | } |
b9e40857 | 346 | netif_addr_unlock_bh(dev); |
655ffee2 | 347 | if (cnt) |
75bf45a7 DW |
348 | return -EOVERFLOW; |
349 | ||
876c9d3a | 350 | return i; |
876c9d3a MT |
351 | } |
352 | ||
75bf45a7 | 353 | static void lbs_set_mcast_worker(struct work_struct *work) |
876c9d3a | 354 | { |
75bf45a7 DW |
355 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); |
356 | struct cmd_ds_mac_multicast_adr mcast_cmd; | |
357 | int dev_flags; | |
358 | int nr_addrs; | |
359 | int old_mac_control = priv->mac_control; | |
876c9d3a | 360 | |
9012b28a | 361 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 362 | |
75bf45a7 DW |
363 | dev_flags = priv->dev->flags; |
364 | if (priv->mesh_dev) | |
365 | dev_flags |= priv->mesh_dev->flags; | |
366 | ||
367 | if (dev_flags & IFF_PROMISC) { | |
368 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
369 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
370 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
371 | goto out_set_mac_control; | |
372 | } else if (dev_flags & IFF_ALLMULTI) { | |
373 | do_allmulti: | |
374 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
375 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
376 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
377 | goto out_set_mac_control; | |
876c9d3a MT |
378 | } |
379 | ||
75bf45a7 DW |
380 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
381 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
382 | if (nr_addrs >= 0 && priv->mesh_dev) | |
383 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
384 | if (nr_addrs < 0) | |
385 | goto do_allmulti; | |
386 | ||
387 | if (nr_addrs) { | |
388 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
389 | maclist[6*nr_addrs]); | |
390 | ||
391 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
392 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
393 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
394 | ||
395 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
396 | ||
397 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
398 | } else | |
399 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
400 | ||
401 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
402 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
403 | out_set_mac_control: | |
d9e9778c HS |
404 | if (priv->mac_control != old_mac_control) |
405 | lbs_set_mac_control(priv); | |
876c9d3a | 406 | |
9012b28a | 407 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
408 | } |
409 | ||
e0e42da3 | 410 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 411 | { |
ab65f649 | 412 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
413 | |
414 | schedule_work(&priv->mcast_work); | |
415 | } | |
416 | ||
876c9d3a | 417 | /** |
10078321 | 418 | * @brief This function handles the major jobs in the LBS driver. |
9012b28a HS |
419 | * It handles all events generated by firmware, RX data received |
420 | * from firmware and TX data sent from kernel. | |
876c9d3a | 421 | * |
10078321 | 422 | * @param data A pointer to lbs_thread structure |
876c9d3a MT |
423 | * @return 0 |
424 | */ | |
10078321 | 425 | static int lbs_thread(void *data) |
876c9d3a | 426 | { |
fe336150 | 427 | struct net_device *dev = data; |
ab65f649 | 428 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 429 | wait_queue_t wait; |
876c9d3a | 430 | |
9012b28a | 431 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 432 | |
876c9d3a MT |
433 | init_waitqueue_entry(&wait, current); |
434 | ||
435 | for (;;) { | |
b8d40bc9 | 436 | int shouldsleep; |
7919b89c | 437 | u8 resp_idx; |
b8d40bc9 | 438 | |
7919b89c HS |
439 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
440 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 441 | |
fe336150 | 442 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 443 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 444 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 445 | |
d9f88705 | 446 | if (kthread_should_stop()) |
b8d40bc9 | 447 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
448 | else if (priv->surpriseremoved) |
449 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
450 | else if (priv->psstate == PS_STATE_SLEEP) |
451 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
452 | else if (priv->cmd_timed_out) |
453 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
454 | else if (!priv->fw_ready) |
455 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
456 | else if (priv->dnld_sent) |
457 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
458 | else if (priv->tx_pending_len > 0) |
459 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
460 | else if (priv->resp_len[priv->resp_idx]) |
461 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
462 | else if (priv->cur_cmd) |
463 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
464 | else if (!list_empty(&priv->cmdpendingq) && |
465 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 466 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 467 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 468 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
469 | else |
470 | shouldsleep = 1; /* No command */ | |
471 | ||
472 | if (shouldsleep) { | |
7919b89c | 473 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 474 | "psmode %d, psstate %d\n", |
7919b89c HS |
475 | priv->connect_status, |
476 | priv->psmode, priv->psstate); | |
aa21c004 | 477 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
478 | schedule(); |
479 | } else | |
aa21c004 | 480 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 481 | |
7919b89c HS |
482 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
483 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
484 | |
485 | set_current_state(TASK_RUNNING); | |
fe336150 | 486 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 487 | |
7919b89c HS |
488 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
489 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 490 | |
d9f88705 | 491 | if (kthread_should_stop()) { |
7919b89c | 492 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
493 | break; |
494 | } | |
495 | ||
d9f88705 DW |
496 | if (priv->surpriseremoved) { |
497 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
498 | continue; | |
499 | } | |
876c9d3a | 500 | |
7919b89c HS |
501 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
502 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 503 | |
7919b89c | 504 | /* Process any pending command response */ |
a01f5450 | 505 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
506 | resp_idx = priv->resp_idx; |
507 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 508 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
509 | lbs_process_command_response(priv, |
510 | priv->resp_buf[resp_idx], | |
511 | priv->resp_len[resp_idx]); | |
aa21c004 | 512 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 513 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 514 | } |
7919b89c | 515 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 516 | |
49125454 AK |
517 | /* Process hardware events, e.g. card removed, link lost */ |
518 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 519 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 520 | u32 event; |
7acd72eb | 521 | |
9842c38e SS |
522 | if (kfifo_out(&priv->event_fifo, |
523 | (unsigned char *) &event, sizeof(event)) != | |
524 | sizeof(event)) | |
525 | break; | |
49125454 AK |
526 | spin_unlock_irq(&priv->driver_lock); |
527 | lbs_process_event(priv, event); | |
528 | spin_lock_irq(&priv->driver_lock); | |
529 | } | |
530 | spin_unlock_irq(&priv->driver_lock); | |
531 | ||
532 | if (priv->wakeup_dev_required) { | |
533 | lbs_deb_thread("Waking up device...\n"); | |
534 | /* Wake up device */ | |
535 | if (priv->exit_deep_sleep(priv)) | |
536 | lbs_deb_thread("Wakeup device failed\n"); | |
537 | continue; | |
538 | } | |
539 | ||
7919b89c | 540 | /* command timeout stuff */ |
2a345099 DW |
541 | if (priv->cmd_timed_out && priv->cur_cmd) { |
542 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
543 | ||
40e6fa82 HS |
544 | lbs_pr_info("Timeout submitting command 0x%04x\n", |
545 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
546 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); | |
547 | if (priv->reset_card) | |
548 | priv->reset_card(priv); | |
2a345099 DW |
549 | } |
550 | priv->cmd_timed_out = 0; | |
551 | ||
b15152a4 DW |
552 | if (!priv->fw_ready) |
553 | continue; | |
554 | ||
876c9d3a | 555 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
556 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
557 | !priv->dnld_sent && !priv->cur_cmd) { | |
558 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
559 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
560 | "dnld_sent %d, cur_cmd %p\n", | |
561 | priv->currenttxskb, priv->dnld_sent, | |
562 | priv->cur_cmd); | |
59f3e4bf | 563 | |
d4ff0ef6 | 564 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
565 | } else { |
566 | /* workaround for firmware sending | |
567 | * deauth/linkloss event immediately | |
568 | * after sleep request; remove this | |
569 | * after firmware fixes it | |
570 | */ | |
aa21c004 | 571 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
572 | lbs_pr_alert("ignore PS_SleepConfirm in " |
573 | "non-connected state\n"); | |
876c9d3a MT |
574 | } |
575 | } | |
576 | ||
577 | /* The PS state is changed during processing of Sleep Request | |
578 | * event above | |
579 | */ | |
aa21c004 DW |
580 | if ((priv->psstate == PS_STATE_SLEEP) || |
581 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
582 | continue; |
583 | ||
49125454 AK |
584 | if (priv->is_deep_sleep) |
585 | continue; | |
586 | ||
876c9d3a | 587 | /* Execute the next command */ |
aa21c004 | 588 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 589 | lbs_execute_next_command(priv); |
876c9d3a MT |
590 | |
591 | /* Wake-up command waiters which can't sleep in | |
10078321 | 592 | * lbs_prepare_and_send_command |
876c9d3a | 593 | */ |
aa21c004 DW |
594 | if (!list_empty(&priv->cmdpendingq)) |
595 | wake_up_all(&priv->cmd_pending); | |
2eb188a1 DW |
596 | |
597 | spin_lock_irq(&priv->driver_lock); | |
598 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
599 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
600 | priv->tx_pending_buf, | |
601 | priv->tx_pending_len); | |
602 | if (ret) { | |
603 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
604 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
605 | } | |
606 | priv->tx_pending_len = 0; | |
607 | if (!priv->currenttxskb) { | |
608 | /* We can wake the queues immediately if we aren't | |
609 | waiting for TX feedback */ | |
610 | if (priv->connect_status == LBS_CONNECTED) | |
611 | netif_wake_queue(priv->dev); | |
612 | if (priv->mesh_dev && | |
602114ae | 613 | lbs_mesh_connected(priv)) |
2eb188a1 DW |
614 | netif_wake_queue(priv->mesh_dev); |
615 | } | |
616 | } | |
617 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
618 | } |
619 | ||
aa21c004 | 620 | del_timer(&priv->command_timer); |
49125454 | 621 | del_timer(&priv->auto_deepsleep_timer); |
aa21c004 | 622 | wake_up_all(&priv->cmd_pending); |
876c9d3a | 623 | |
9012b28a | 624 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
625 | return 0; |
626 | } | |
627 | ||
ab25ecae DW |
628 | static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy, |
629 | struct cmd_header *cmd) | |
630 | { | |
61d30020 | 631 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae DW |
632 | |
633 | netif_device_detach(priv->dev); | |
634 | if (priv->mesh_dev) | |
635 | netif_device_detach(priv->mesh_dev); | |
636 | ||
637 | priv->fw_ready = 0; | |
61d30020 | 638 | lbs_deb_leave(LBS_DEB_FW); |
ab25ecae DW |
639 | return 0; |
640 | } | |
641 | ||
ab25ecae DW |
642 | int lbs_suspend(struct lbs_private *priv) |
643 | { | |
644 | struct cmd_header cmd; | |
645 | int ret; | |
646 | ||
61d30020 HS |
647 | lbs_deb_enter(LBS_DEB_FW); |
648 | ||
506e9025 DW |
649 | if (priv->wol_criteria == 0xffffffff) { |
650 | lbs_pr_info("Suspend attempt without configuring wake params!\n"); | |
651 | return -EINVAL; | |
652 | } | |
653 | ||
ab25ecae | 654 | memset(&cmd, 0, sizeof(cmd)); |
7e226272 | 655 | |
ab25ecae DW |
656 | ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd, |
657 | sizeof(cmd), lbs_suspend_callback, 0); | |
658 | if (ret) | |
659 | lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret); | |
660 | ||
61d30020 | 661 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
662 | return ret; |
663 | } | |
664 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
665 | ||
a63e5cb2 | 666 | void lbs_resume(struct lbs_private *priv) |
ab25ecae | 667 | { |
61d30020 HS |
668 | lbs_deb_enter(LBS_DEB_FW); |
669 | ||
ab25ecae DW |
670 | priv->fw_ready = 1; |
671 | ||
672 | /* Firmware doesn't seem to give us RX packets any more | |
673 | until we send it some command. Might as well update */ | |
674 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, | |
675 | 0, 0, NULL); | |
676 | ||
677 | netif_device_attach(priv->dev); | |
678 | if (priv->mesh_dev) | |
679 | netif_device_attach(priv->mesh_dev); | |
680 | ||
61d30020 | 681 | lbs_deb_leave(LBS_DEB_FW); |
ab25ecae DW |
682 | } |
683 | EXPORT_SYMBOL_GPL(lbs_resume); | |
684 | ||
1df4e8fe | 685 | /** |
b4836599 CM |
686 | * @brief This function gets the HW spec from the firmware and sets |
687 | * some basic parameters. | |
1df4e8fe | 688 | * |
69f9032d | 689 | * @param priv A pointer to struct lbs_private structure |
1df4e8fe HS |
690 | * @return 0 or -1 |
691 | */ | |
69f9032d | 692 | static int lbs_setup_firmware(struct lbs_private *priv) |
1df4e8fe HS |
693 | { |
694 | int ret = -1; | |
87c8c72d | 695 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; |
1df4e8fe HS |
696 | |
697 | lbs_deb_enter(LBS_DEB_FW); | |
698 | ||
87c8c72d | 699 | /* Read MAC address from firmware */ |
aa21c004 | 700 | memset(priv->current_addr, 0xff, ETH_ALEN); |
6e66f03f | 701 | ret = lbs_update_hw_spec(priv); |
ef85ad54 | 702 | if (ret) |
1df4e8fe | 703 | goto done; |
1df4e8fe | 704 | |
87c8c72d DW |
705 | /* Read power levels if available */ |
706 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
707 | if (ret == 0) { | |
708 | priv->txpower_cur = curlevel; | |
709 | priv->txpower_min = minlevel; | |
710 | priv->txpower_max = maxlevel; | |
711 | } | |
712 | ||
d9e9778c | 713 | lbs_set_mac_control(priv); |
1df4e8fe HS |
714 | done: |
715 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
716 | return ret; | |
717 | } | |
718 | ||
1df4e8fe HS |
719 | /** |
720 | * This function handles the timeout of command sending. | |
721 | * It will re-send the same command again. | |
722 | */ | |
40e6fa82 | 723 | static void lbs_cmd_timeout_handler(unsigned long data) |
1df4e8fe | 724 | { |
69f9032d | 725 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
726 | unsigned long flags; |
727 | ||
61d30020 | 728 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 729 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 730 | |
57962f0b | 731 | if (!priv->cur_cmd) |
2a345099 | 732 | goto out; |
1df4e8fe | 733 | |
57962f0b HS |
734 | lbs_pr_info("command 0x%04x timed out\n", |
735 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 736 | |
2a345099 | 737 | priv->cmd_timed_out = 1; |
1df4e8fe | 738 | wake_up_interruptible(&priv->waitq); |
61d30020 | 739 | out: |
2a345099 | 740 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 741 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
742 | } |
743 | ||
49125454 AK |
744 | /** |
745 | * This function put the device back to deep sleep mode when timer expires | |
746 | * and no activity (command, event, data etc.) is detected. | |
747 | */ | |
748 | static void auto_deepsleep_timer_fn(unsigned long data) | |
749 | { | |
750 | struct lbs_private *priv = (struct lbs_private *)data; | |
751 | int ret; | |
752 | ||
753 | lbs_deb_enter(LBS_DEB_CMD); | |
754 | ||
755 | if (priv->is_activity_detected) { | |
756 | priv->is_activity_detected = 0; | |
757 | } else { | |
758 | if (priv->is_auto_deep_sleep_enabled && | |
759 | (!priv->wakeup_dev_required) && | |
760 | (priv->connect_status != LBS_CONNECTED)) { | |
761 | lbs_deb_main("Entering auto deep sleep mode...\n"); | |
762 | ret = lbs_prepare_and_send_command(priv, | |
763 | CMD_802_11_DEEP_SLEEP, 0, | |
764 | 0, 0, NULL); | |
c0bbd576 AK |
765 | if (ret) |
766 | lbs_pr_err("Enter Deep Sleep command failed\n"); | |
49125454 AK |
767 | } |
768 | } | |
769 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
770 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
771 | lbs_deb_leave(LBS_DEB_CMD); | |
772 | } | |
773 | ||
774 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
775 | { | |
776 | lbs_deb_enter(LBS_DEB_SDIO); | |
777 | ||
778 | priv->is_auto_deep_sleep_enabled = 1; | |
779 | if (priv->is_deep_sleep) | |
780 | priv->wakeup_dev_required = 1; | |
781 | mod_timer(&priv->auto_deepsleep_timer , | |
782 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
783 | ||
784 | lbs_deb_leave(LBS_DEB_SDIO); | |
785 | return 0; | |
786 | } | |
787 | ||
788 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
789 | { | |
790 | lbs_deb_enter(LBS_DEB_SDIO); | |
791 | ||
792 | priv->is_auto_deep_sleep_enabled = 0; | |
793 | priv->auto_deep_sleep_timeout = 0; | |
794 | del_timer(&priv->auto_deepsleep_timer); | |
795 | ||
796 | lbs_deb_leave(LBS_DEB_SDIO); | |
797 | return 0; | |
798 | } | |
799 | ||
69f9032d | 800 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 801 | { |
1df4e8fe | 802 | size_t bufsize; |
954ee164 | 803 | int i, ret = 0; |
1df4e8fe | 804 | |
61d30020 HS |
805 | lbs_deb_enter(LBS_DEB_MAIN); |
806 | ||
1df4e8fe HS |
807 | /* Allocate buffer to store the BSSID list */ |
808 | bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor); | |
aa21c004 DW |
809 | priv->networks = kzalloc(bufsize, GFP_KERNEL); |
810 | if (!priv->networks) { | |
1df4e8fe | 811 | lbs_pr_err("Out of memory allocating beacons\n"); |
954ee164 DW |
812 | ret = -1; |
813 | goto out; | |
1df4e8fe HS |
814 | } |
815 | ||
954ee164 | 816 | /* Initialize scan result lists */ |
aa21c004 DW |
817 | INIT_LIST_HEAD(&priv->network_free_list); |
818 | INIT_LIST_HEAD(&priv->network_list); | |
954ee164 | 819 | for (i = 0; i < MAX_NETWORK_COUNT; i++) { |
aa21c004 DW |
820 | list_add_tail(&priv->networks[i].list, |
821 | &priv->network_free_list); | |
954ee164 | 822 | } |
1df4e8fe | 823 | |
aa21c004 | 824 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 825 | |
aa21c004 | 826 | priv->connect_status = LBS_DISCONNECTED; |
aa21c004 DW |
827 | priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM; |
828 | priv->mode = IW_MODE_INFRA; | |
c14951fe | 829 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 830 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 831 | priv->radio_on = 1; |
85319f93 | 832 | priv->enablehwauto = 1; |
aa21c004 DW |
833 | priv->psmode = LBS802_11POWERMODECAM; |
834 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
835 | priv->is_deep_sleep = 0; |
836 | priv->is_auto_deep_sleep_enabled = 0; | |
837 | priv->wakeup_dev_required = 0; | |
838 | init_waitqueue_head(&priv->ds_awake_q); | |
1df4e8fe | 839 | |
aa21c004 | 840 | mutex_init(&priv->lock); |
1df4e8fe | 841 | |
40e6fa82 | 842 | setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, |
61d30020 | 843 | (unsigned long)priv); |
49125454 AK |
844 | setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, |
845 | (unsigned long)priv); | |
1df4e8fe | 846 | |
aa21c004 DW |
847 | INIT_LIST_HEAD(&priv->cmdfreeq); |
848 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
1df4e8fe | 849 | |
aa21c004 DW |
850 | spin_lock_init(&priv->driver_lock); |
851 | init_waitqueue_head(&priv->cmd_pending); | |
1df4e8fe | 852 | |
954ee164 | 853 | /* Allocate the command buffers */ |
10078321 | 854 | if (lbs_allocate_cmd_buffer(priv)) { |
954ee164 | 855 | lbs_pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
856 | ret = -ENOMEM; |
857 | goto out; | |
858 | } | |
859 | priv->resp_idx = 0; | |
860 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
861 | ||
862 | /* Create the event FIFO */ | |
c1e13f25 | 863 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 864 | if (ret) { |
7919b89c | 865 | lbs_pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 866 | goto out; |
954ee164 | 867 | } |
1df4e8fe | 868 | |
954ee164 | 869 | out: |
61d30020 HS |
870 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
871 | ||
954ee164 DW |
872 | return ret; |
873 | } | |
1df4e8fe | 874 | |
69f9032d | 875 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 876 | { |
61d30020 | 877 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 878 | |
61d30020 | 879 | lbs_free_cmd_buffer(priv); |
45465487 | 880 | kfifo_free(&priv->event_fifo); |
aa21c004 | 881 | del_timer(&priv->command_timer); |
49125454 | 882 | del_timer(&priv->auto_deepsleep_timer); |
aa21c004 DW |
883 | kfree(priv->networks); |
884 | priv->networks = NULL; | |
61d30020 HS |
885 | |
886 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
887 | } |
888 | ||
f02abf10 SH |
889 | static const struct net_device_ops lbs_netdev_ops = { |
890 | .ndo_open = lbs_dev_open, | |
891 | .ndo_stop = lbs_eth_stop, | |
892 | .ndo_start_xmit = lbs_hard_start_xmit, | |
893 | .ndo_set_mac_address = lbs_set_mac_address, | |
894 | .ndo_tx_timeout = lbs_tx_timeout, | |
895 | .ndo_set_multicast_list = lbs_set_multicast_list, | |
896 | .ndo_change_mtu = eth_change_mtu, | |
897 | .ndo_validate_addr = eth_validate_addr, | |
898 | }; | |
899 | ||
876c9d3a MT |
900 | /** |
901 | * @brief This function adds the card. it will probe the | |
10078321 | 902 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a MT |
903 | * |
904 | * @param card A pointer to card | |
69f9032d | 905 | * @return A pointer to struct lbs_private structure |
876c9d3a | 906 | */ |
69f9032d | 907 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 908 | { |
ff9fc791 HS |
909 | struct net_device *dev; |
910 | struct wireless_dev *wdev; | |
69f9032d | 911 | struct lbs_private *priv = NULL; |
876c9d3a | 912 | |
61d30020 | 913 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
914 | |
915 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
916 | wdev = lbs_cfg_alloc(dmdev); |
917 | if (IS_ERR(wdev)) { | |
918 | lbs_pr_err("cfg80211 init failed\n"); | |
954ee164 | 919 | goto done; |
876c9d3a | 920 | } |
ff9fc791 HS |
921 | /* TODO? */ |
922 | wdev->iftype = NL80211_IFTYPE_STATION; | |
923 | priv = wdev_priv(wdev); | |
924 | priv->wdev = wdev; | |
876c9d3a | 925 | |
10078321 | 926 | if (lbs_init_adapter(priv)) { |
954ee164 | 927 | lbs_pr_err("failed to initialize adapter structure.\n"); |
ff9fc791 HS |
928 | goto err_wdev; |
929 | } | |
930 | ||
931 | //TODO? dev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES); | |
932 | dev = alloc_netdev(0, "wlan%d", ether_setup); | |
933 | if (!dev) { | |
934 | dev_err(dmdev, "no memory for network device instance\n"); | |
935 | goto err_adapter; | |
954ee164 DW |
936 | } |
937 | ||
ff9fc791 HS |
938 | dev->ieee80211_ptr = wdev; |
939 | dev->ml_priv = priv; | |
940 | SET_NETDEV_DEV(dev, dmdev); | |
941 | wdev->netdev = dev; | |
634b8f49 | 942 | priv->dev = dev; |
876c9d3a | 943 | |
f02abf10 | 944 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 945 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 946 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 947 | #ifdef WIRELESS_EXT |
f02abf10 | 948 | dev->wireless_handlers = &lbs_handler_def; |
876c9d3a | 949 | #endif |
876c9d3a | 950 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 951 | |
ff9fc791 HS |
952 | |
953 | // TODO: kzalloc + iwm_init_default_profile(iwm, iwm->umac_profile); ?? | |
954 | ||
955 | ||
956 | priv->card = card; | |
ff9fc791 HS |
957 | priv->infra_open = 0; |
958 | ||
7732ca45 | 959 | |
965f8bbc | 960 | priv->rtap_net_dev = NULL; |
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 HS |
971 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
972 | INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker); | |
973 | INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); | |
75bf45a7 | 974 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
23a397ac | 975 | |
506e9025 DW |
976 | priv->wol_criteria = 0xffffffff; |
977 | priv->wol_gpio = 0xff; | |
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); |
10078321 | 1006 | lbs_remove_rtap(priv); |
876c9d3a | 1007 | |
954ee164 | 1008 | dev = priv->dev; |
2afc0c5d | 1009 | |
652e3f20 HS |
1010 | cancel_delayed_work_sync(&priv->scan_work); |
1011 | cancel_delayed_work_sync(&priv->assoc_work); | |
75bf45a7 | 1012 | cancel_work_sync(&priv->mcast_work); |
71b35f3a DW |
1013 | |
1014 | /* worker thread destruction blocks on the in-flight command which | |
1015 | * should have been cleared already in lbs_stop_card(). | |
1016 | */ | |
1017 | lbs_deb_main("destroying worker thread\n"); | |
954ee164 | 1018 | destroy_workqueue(priv->work_thread); |
71b35f3a | 1019 | lbs_deb_main("done destroying worker thread\n"); |
876c9d3a | 1020 | |
aa21c004 DW |
1021 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
1022 | priv->psmode = LBS802_11POWERMODECAM; | |
10078321 | 1023 | lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); |
876c9d3a MT |
1024 | } |
1025 | ||
fea2b8ec | 1026 | lbs_send_disconnect_notification(priv); |
954ee164 | 1027 | |
49125454 AK |
1028 | if (priv->is_deep_sleep) { |
1029 | priv->is_deep_sleep = 0; | |
1030 | wake_up_interruptible(&priv->ds_awake_q); | |
1031 | } | |
1032 | ||
954ee164 | 1033 | /* Stop the thread servicing the interrupts */ |
aa21c004 | 1034 | priv->surpriseremoved = 1; |
954ee164 DW |
1035 | kthread_stop(priv->main_thread); |
1036 | ||
10078321 | 1037 | lbs_free_adapter(priv); |
ff9fc791 | 1038 | lbs_cfg_free(priv); |
954ee164 DW |
1039 | |
1040 | priv->dev = NULL; | |
1041 | free_netdev(dev); | |
1042 | ||
1043 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 1044 | } |
10078321 | 1045 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
1046 | |
1047 | ||
cd74468b HS |
1048 | static int lbs_rtap_supported(struct lbs_private *priv) |
1049 | { | |
1050 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) | |
1051 | return 1; | |
1052 | ||
1053 | /* newer firmware use a capability mask */ | |
1054 | return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && | |
1055 | (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); | |
1056 | } | |
1057 | ||
1058 | ||
69f9032d | 1059 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
1060 | { |
1061 | struct net_device *dev = priv->dev; | |
1062 | int ret = -1; | |
1063 | ||
1064 | lbs_deb_enter(LBS_DEB_MAIN); | |
1065 | ||
1066 | /* poke the firmware */ | |
10078321 | 1067 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
1068 | if (ret) |
1069 | goto done; | |
1070 | ||
ff9fc791 HS |
1071 | if (lbs_cfg_register(priv)) { |
1072 | lbs_pr_err("cannot register device\n"); | |
954ee164 | 1073 | goto done; |
876c9d3a | 1074 | } |
020f3d00 | 1075 | |
020f3d00 | 1076 | lbs_update_channel(priv); |
020f3d00 | 1077 | |
cd74468b HS |
1078 | lbs_init_mesh(priv); |
1079 | ||
e0e42da3 HS |
1080 | /* |
1081 | * While rtap isn't related to mesh, only mesh-enabled | |
1082 | * firmware implements the rtap functionality via | |
1083 | * CMD_802_11_MONITOR_MODE. | |
684d6b36 | 1084 | */ |
cd74468b | 1085 | if (lbs_rtap_supported(priv)) { |
684d6b36 BZ |
1086 | if (device_create_file(&dev->dev, &dev_attr_lbs_rtap)) |
1087 | lbs_pr_err("cannot register lbs_rtap attribute\n"); | |
020f3d00 | 1088 | } |
876c9d3a | 1089 | |
10078321 | 1090 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 1091 | |
954ee164 DW |
1092 | lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name); |
1093 | ||
32a74b7c | 1094 | ret = 0; |
876c9d3a | 1095 | |
32a74b7c | 1096 | done: |
954ee164 DW |
1097 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
1098 | return ret; | |
1099 | } | |
10078321 | 1100 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
1101 | |
1102 | ||
a63e5cb2 | 1103 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 1104 | { |
43baa5bb | 1105 | struct net_device *dev; |
954ee164 DW |
1106 | struct cmd_ctrl_node *cmdnode; |
1107 | unsigned long flags; | |
1108 | ||
1109 | lbs_deb_enter(LBS_DEB_MAIN); | |
1110 | ||
652e3f20 HS |
1111 | if (!priv) |
1112 | goto out; | |
43baa5bb | 1113 | dev = priv->dev; |
652e3f20 | 1114 | |
43baa5bb JL |
1115 | netif_stop_queue(dev); |
1116 | netif_carrier_off(dev); | |
954ee164 | 1117 | |
10078321 | 1118 | lbs_debugfs_remove_one(priv); |
cd74468b HS |
1119 | lbs_deinit_mesh(priv); |
1120 | ||
1121 | if (lbs_rtap_supported(priv)) | |
3b72b01d | 1122 | device_remove_file(&dev->dev, &dev_attr_lbs_rtap); |
954ee164 | 1123 | |
71b35f3a | 1124 | /* Delete the timeout of the currently processing command */ |
652e3f20 | 1125 | del_timer_sync(&priv->command_timer); |
49125454 | 1126 | del_timer_sync(&priv->auto_deepsleep_timer); |
71b35f3a DW |
1127 | |
1128 | /* Flush pending command nodes */ | |
aa21c004 | 1129 | spin_lock_irqsave(&priv->driver_lock, flags); |
71b35f3a | 1130 | lbs_deb_main("clearing pending commands\n"); |
aa21c004 | 1131 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { |
ae125bf8 | 1132 | cmdnode->result = -ENOENT; |
954ee164 DW |
1133 | cmdnode->cmdwaitqwoken = 1; |
1134 | wake_up_interruptible(&cmdnode->cmdwait_q); | |
1135 | } | |
71b35f3a DW |
1136 | |
1137 | /* Flush the command the card is currently processing */ | |
1138 | if (priv->cur_cmd) { | |
1139 | lbs_deb_main("clearing current command\n"); | |
1140 | priv->cur_cmd->result = -ENOENT; | |
1141 | priv->cur_cmd->cmdwaitqwoken = 1; | |
1142 | wake_up_interruptible(&priv->cur_cmd->cmdwait_q); | |
1143 | } | |
1144 | lbs_deb_main("done clearing commands\n"); | |
aa21c004 | 1145 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
954ee164 DW |
1146 | |
1147 | unregister_netdev(dev); | |
1148 | ||
652e3f20 | 1149 | out: |
a63e5cb2 | 1150 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1151 | } |
10078321 | 1152 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1153 | |
876c9d3a | 1154 | |
7919b89c HS |
1155 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1156 | { | |
1157 | unsigned long flags; | |
1158 | ||
1159 | lbs_deb_enter(LBS_DEB_THREAD); | |
1160 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1161 | ||
1162 | if (priv->psstate == PS_STATE_SLEEP) | |
1163 | priv->psstate = PS_STATE_AWAKE; | |
1164 | ||
7acd72eb | 1165 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c HS |
1166 | |
1167 | wake_up_interruptible(&priv->waitq); | |
1168 | ||
1169 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1170 | lbs_deb_leave(LBS_DEB_THREAD); | |
1171 | } | |
1172 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1173 | ||
1174 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1175 | { |
ed37b516 | 1176 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1177 | |
4f679496 | 1178 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1179 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1180 | |
1181 | /* Swap buffers by flipping the response index */ | |
1182 | BUG_ON(resp_idx > 1); | |
1183 | priv->resp_idx = resp_idx; | |
1184 | ||
fe336150 | 1185 | wake_up_interruptible(&priv->waitq); |
876c9d3a | 1186 | |
ed37b516 | 1187 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1188 | } |
7919b89c | 1189 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1190 | |
4fb910fd | 1191 | static int __init lbs_init_module(void) |
876c9d3a | 1192 | { |
9012b28a | 1193 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1194 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1195 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1196 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
1197 | confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED); | |
10078321 | 1198 | lbs_debugfs_init(); |
084708b6 HS |
1199 | lbs_deb_leave(LBS_DEB_MAIN); |
1200 | return 0; | |
876c9d3a MT |
1201 | } |
1202 | ||
4fb910fd | 1203 | static void __exit lbs_exit_module(void) |
876c9d3a | 1204 | { |
9012b28a | 1205 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1206 | lbs_debugfs_remove(); |
9012b28a | 1207 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1208 | } |
1209 | ||
965f8bbc LCC |
1210 | /* |
1211 | * rtap interface support fuctions | |
1212 | */ | |
1213 | ||
10078321 | 1214 | static int lbs_rtap_open(struct net_device *dev) |
965f8bbc | 1215 | { |
8552855f | 1216 | /* Yes, _stop_ the queue. Because we don't support injection */ |
61d30020 HS |
1217 | lbs_deb_enter(LBS_DEB_MAIN); |
1218 | netif_carrier_off(dev); | |
1219 | netif_stop_queue(dev); | |
1220 | lbs_deb_leave(LBS_DEB_LEAVE); | |
1221 | return 0; | |
965f8bbc LCC |
1222 | } |
1223 | ||
10078321 | 1224 | static int lbs_rtap_stop(struct net_device *dev) |
965f8bbc | 1225 | { |
61d30020 HS |
1226 | lbs_deb_enter(LBS_DEB_MAIN); |
1227 | lbs_deb_leave(LBS_DEB_MAIN); | |
1228 | return 0; | |
965f8bbc LCC |
1229 | } |
1230 | ||
d0cf9c0d SH |
1231 | static netdev_tx_t lbs_rtap_hard_start_xmit(struct sk_buff *skb, |
1232 | struct net_device *dev) | |
965f8bbc | 1233 | { |
61d30020 HS |
1234 | netif_stop_queue(dev); |
1235 | return NETDEV_TX_BUSY; | |
965f8bbc LCC |
1236 | } |
1237 | ||
2fd6cfe3 | 1238 | static void lbs_remove_rtap(struct lbs_private *priv) |
965f8bbc | 1239 | { |
61d30020 | 1240 | lbs_deb_enter(LBS_DEB_MAIN); |
965f8bbc | 1241 | if (priv->rtap_net_dev == NULL) |
5f505d90 | 1242 | goto out; |
965f8bbc | 1243 | unregister_netdev(priv->rtap_net_dev); |
d9268fb9 | 1244 | free_netdev(priv->rtap_net_dev); |
965f8bbc | 1245 | priv->rtap_net_dev = NULL; |
5f505d90 | 1246 | out: |
61d30020 | 1247 | lbs_deb_leave(LBS_DEB_MAIN); |
965f8bbc LCC |
1248 | } |
1249 | ||
f02abf10 SH |
1250 | static const struct net_device_ops rtap_netdev_ops = { |
1251 | .ndo_open = lbs_rtap_open, | |
1252 | .ndo_stop = lbs_rtap_stop, | |
1253 | .ndo_start_xmit = lbs_rtap_hard_start_xmit, | |
1254 | }; | |
1255 | ||
2fd6cfe3 | 1256 | static int lbs_add_rtap(struct lbs_private *priv) |
965f8bbc | 1257 | { |
61d30020 | 1258 | int ret = 0; |
d9268fb9 | 1259 | struct net_device *rtap_dev; |
965f8bbc | 1260 | |
61d30020 HS |
1261 | lbs_deb_enter(LBS_DEB_MAIN); |
1262 | if (priv->rtap_net_dev) { | |
1263 | ret = -EPERM; | |
1264 | goto out; | |
1265 | } | |
965f8bbc | 1266 | |
d9268fb9 | 1267 | rtap_dev = alloc_netdev(0, "rtap%d", ether_setup); |
61d30020 HS |
1268 | if (rtap_dev == NULL) { |
1269 | ret = -ENOMEM; | |
1270 | goto out; | |
1271 | } | |
965f8bbc | 1272 | |
121947c6 | 1273 | memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN); |
d9268fb9 | 1274 | rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
f02abf10 | 1275 | rtap_dev->netdev_ops = &rtap_netdev_ops; |
4ceb7b6a | 1276 | rtap_dev->ml_priv = priv; |
229ce3ab | 1277 | SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent); |
965f8bbc | 1278 | |
61d30020 HS |
1279 | ret = register_netdev(rtap_dev); |
1280 | if (ret) { | |
d9268fb9 | 1281 | free_netdev(rtap_dev); |
61d30020 | 1282 | goto out; |
965f8bbc | 1283 | } |
d9268fb9 | 1284 | priv->rtap_net_dev = rtap_dev; |
965f8bbc | 1285 | |
61d30020 HS |
1286 | out: |
1287 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); | |
1288 | return ret; | |
965f8bbc LCC |
1289 | } |
1290 | ||
10078321 HS |
1291 | module_init(lbs_init_module); |
1292 | module_exit(lbs_exit_module); | |
876c9d3a | 1293 | |
084708b6 | 1294 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1295 | MODULE_AUTHOR("Marvell International Ltd."); |
1296 | MODULE_LICENSE("GPL"); |