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> |
876c9d3a | 16 | #include <net/iw_handler.h> |
ff9fc791 | 17 | #include <net/cfg80211.h> |
876c9d3a MT |
18 | |
19 | #include "host.h" | |
876c9d3a MT |
20 | #include "decl.h" |
21 | #include "dev.h" | |
876c9d3a | 22 | #include "wext.h" |
ff9fc791 | 23 | #include "cfg.h" |
876c9d3a | 24 | #include "debugfs.h" |
245bf20f | 25 | #include "scan.h" |
876c9d3a | 26 | #include "assoc.h" |
6e66f03f | 27 | #include "cmd.h" |
876c9d3a | 28 | |
7856a541 | 29 | #define DRIVER_RELEASE_VERSION "323.p0" |
10078321 | 30 | const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION |
3ce40232 DW |
31 | #ifdef DEBUG |
32 | "-dbg" | |
33 | #endif | |
34 | ""; | |
35 | ||
a46c6410 HS |
36 | |
37 | /* Module parameters */ | |
10078321 HS |
38 | unsigned int lbs_debug; |
39 | EXPORT_SYMBOL_GPL(lbs_debug); | |
40 | module_param_named(libertas_debug, lbs_debug, int, 0644); | |
a46c6410 HS |
41 | |
42 | ||
f539f2ef HS |
43 | /* This global structure is used to send the confirm_sleep command as |
44 | * fast as possible down to the firmware. */ | |
45 | struct cmd_confirm_sleep confirm_sleep; | |
46 | ||
47 | ||
876c9d3a | 48 | /** |
8c512765 | 49 | * the table to keep region code |
876c9d3a | 50 | */ |
10078321 | 51 | u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
8c512765 | 52 | { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; |
876c9d3a | 53 | |
876c9d3a | 54 | /** |
8c512765 DW |
55 | * FW rate table. FW refers to rates by their index in this table, not by the |
56 | * rate value itself. Values of 0x00 are | |
57 | * reserved positions. | |
876c9d3a | 58 | */ |
8c512765 DW |
59 | static u8 fw_data_rates[MAX_RATES] = |
60 | { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, | |
61 | 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 | |
62 | }; | |
876c9d3a | 63 | |
876c9d3a | 64 | /** |
8c512765 DW |
65 | * @brief use index to get the data rate |
66 | * | |
67 | * @param idx The index of data rate | |
68 | * @return data rate or 0 | |
876c9d3a | 69 | */ |
10078321 | 70 | u32 lbs_fw_index_to_data_rate(u8 idx) |
8c512765 DW |
71 | { |
72 | if (idx >= sizeof(fw_data_rates)) | |
73 | idx = 0; | |
74 | return fw_data_rates[idx]; | |
75 | } | |
76 | ||
77 | /** | |
78 | * @brief use rate to get the index | |
79 | * | |
80 | * @param rate data rate | |
81 | * @return index or 0 | |
82 | */ | |
10078321 | 83 | u8 lbs_data_rate_to_fw_index(u32 rate) |
8c512765 DW |
84 | { |
85 | u8 i; | |
86 | ||
87 | if (!rate) | |
88 | return 0; | |
89 | ||
90 | for (i = 0; i < sizeof(fw_data_rates); i++) { | |
91 | if (rate == fw_data_rates[i]) | |
92 | return i; | |
93 | } | |
94 | return 0; | |
95 | } | |
876c9d3a | 96 | |
6fb53252 | 97 | |
2fd6cfe3 DW |
98 | static int lbs_add_rtap(struct lbs_private *priv); |
99 | static void lbs_remove_rtap(struct lbs_private *priv); | |
7e226272 | 100 | |
965f8bbc LCC |
101 | |
102 | /** | |
103 | * Get function for sysfs attribute rtap | |
104 | */ | |
10078321 | 105 | static ssize_t lbs_rtap_get(struct device *dev, |
965f8bbc LCC |
106 | struct device_attribute *attr, char * buf) |
107 | { | |
ab65f649 | 108 | struct lbs_private *priv = to_net_dev(dev)->ml_priv; |
aa21c004 | 109 | return snprintf(buf, 5, "0x%X\n", priv->monitormode); |
965f8bbc LCC |
110 | } |
111 | ||
112 | /** | |
113 | * Set function for sysfs attribute rtap | |
114 | */ | |
10078321 | 115 | static ssize_t lbs_rtap_set(struct device *dev, |
965f8bbc LCC |
116 | struct device_attribute *attr, const char * buf, size_t count) |
117 | { | |
118 | int monitor_mode; | |
ab65f649 | 119 | struct lbs_private *priv = to_net_dev(dev)->ml_priv; |
965f8bbc LCC |
120 | |
121 | sscanf(buf, "%x", &monitor_mode); | |
c2b310a7 HS |
122 | if (monitor_mode) { |
123 | if (priv->monitormode == monitor_mode) | |
965f8bbc | 124 | return strlen(buf); |
c2b310a7 | 125 | if (!priv->monitormode) { |
8552855f DW |
126 | if (priv->infra_open || priv->mesh_open) |
127 | return -EBUSY; | |
aa21c004 | 128 | if (priv->mode == IW_MODE_INFRA) |
191bb40e DW |
129 | lbs_cmd_80211_deauthenticate(priv, |
130 | priv->curbssparams.bssid, | |
131 | WLAN_REASON_DEAUTH_LEAVING); | |
aa21c004 | 132 | else if (priv->mode == IW_MODE_ADHOC) |
f5fe1fda | 133 | lbs_adhoc_stop(priv); |
10078321 | 134 | lbs_add_rtap(priv); |
965f8bbc | 135 | } |
aa21c004 | 136 | priv->monitormode = monitor_mode; |
3b72b01d | 137 | } else { |
c2b310a7 | 138 | if (!priv->monitormode) |
965f8bbc | 139 | return strlen(buf); |
c2b310a7 | 140 | priv->monitormode = 0; |
10078321 | 141 | lbs_remove_rtap(priv); |
f86a93e1 | 142 | |
aa21c004 DW |
143 | if (priv->currenttxskb) { |
144 | dev_kfree_skb_any(priv->currenttxskb); | |
145 | priv->currenttxskb = NULL; | |
f86a93e1 DW |
146 | } |
147 | ||
148 | /* Wake queues, command thread, etc. */ | |
149 | lbs_host_to_card_done(priv); | |
965f8bbc LCC |
150 | } |
151 | ||
10078321 | 152 | lbs_prepare_and_send_command(priv, |
965f8bbc | 153 | CMD_802_11_MONITOR_MODE, CMD_ACT_SET, |
aa21c004 | 154 | CMD_OPTION_WAITFORRSP, 0, &priv->monitormode); |
965f8bbc LCC |
155 | return strlen(buf); |
156 | } | |
157 | ||
158 | /** | |
23a397ac DW |
159 | * lbs_rtap attribute to be exported per ethX interface |
160 | * through sysfs (/sys/class/net/ethX/lbs_rtap) | |
965f8bbc | 161 | */ |
23a397ac DW |
162 | static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set ); |
163 | ||
164 | /** | |
e0e42da3 | 165 | * @brief This function opens the ethX interface |
876c9d3a MT |
166 | * |
167 | * @param dev A pointer to net_device structure | |
8552855f | 168 | * @return 0 or -EBUSY if monitor mode active |
876c9d3a | 169 | */ |
10078321 | 170 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 171 | { |
ab65f649 | 172 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 173 | int ret = 0; |
876c9d3a | 174 | |
61d30020 HS |
175 | lbs_deb_enter(LBS_DEB_NET); |
176 | ||
8552855f | 177 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 178 | |
c2b310a7 | 179 | if (priv->monitormode) { |
8552855f DW |
180 | ret = -EBUSY; |
181 | goto out; | |
182 | } | |
01d77d8d | 183 | |
e0e42da3 | 184 | priv->infra_open = 1; |
7e226272 | 185 | |
e0e42da3 HS |
186 | if (priv->connect_status == LBS_CONNECTED) |
187 | netif_carrier_on(dev); | |
188 | else | |
189 | netif_carrier_off(dev); | |
876c9d3a | 190 | |
8552855f DW |
191 | if (!priv->tx_pending_len) |
192 | netif_wake_queue(dev); | |
193 | out: | |
876c9d3a | 194 | |
8552855f | 195 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 196 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 197 | return ret; |
876c9d3a MT |
198 | } |
199 | ||
876c9d3a MT |
200 | /** |
201 | * @brief This function closes the ethX interface | |
202 | * | |
203 | * @param dev A pointer to net_device structure | |
204 | * @return 0 | |
205 | */ | |
8552855f | 206 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 207 | { |
ab65f649 | 208 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 209 | |
61d30020 | 210 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 211 | |
61d30020 | 212 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 213 | priv->infra_open = 0; |
8552855f | 214 | netif_stop_queue(dev); |
8552855f | 215 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 216 | |
75bf45a7 DW |
217 | schedule_work(&priv->mcast_work); |
218 | ||
61d30020 | 219 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 220 | return 0; |
876c9d3a MT |
221 | } |
222 | ||
10078321 | 223 | static void lbs_tx_timeout(struct net_device *dev) |
876c9d3a | 224 | { |
ab65f649 | 225 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 226 | |
9012b28a | 227 | lbs_deb_enter(LBS_DEB_TX); |
876c9d3a | 228 | |
9012b28a | 229 | lbs_pr_err("tx watch dog timeout\n"); |
876c9d3a | 230 | |
876c9d3a MT |
231 | dev->trans_start = jiffies; |
232 | ||
7919b89c HS |
233 | if (priv->currenttxskb) |
234 | lbs_send_tx_feedback(priv, 0); | |
235 | ||
a63b22bb DW |
236 | /* XX: Shouldn't we also call into the hw-specific driver |
237 | to kick it somehow? */ | |
238 | lbs_host_to_card_done(priv); | |
876c9d3a | 239 | |
354eca98 DW |
240 | /* More often than not, this actually happens because the |
241 | firmware has crapped itself -- rather than just a very | |
242 | busy medium. So send a harmless command, and if/when | |
243 | _that_ times out, we'll kick it in the head. */ | |
244 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, | |
245 | 0, 0, NULL); | |
246 | ||
9012b28a | 247 | lbs_deb_leave(LBS_DEB_TX); |
876c9d3a MT |
248 | } |
249 | ||
e775ed7c DW |
250 | void lbs_host_to_card_done(struct lbs_private *priv) |
251 | { | |
a63b22bb DW |
252 | unsigned long flags; |
253 | ||
61d30020 HS |
254 | lbs_deb_enter(LBS_DEB_THREAD); |
255 | ||
a63b22bb | 256 | spin_lock_irqsave(&priv->driver_lock, flags); |
e775ed7c DW |
257 | |
258 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
259 | ||
260 | /* Wake main thread if commands are pending */ | |
49125454 AK |
261 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
262 | if (!priv->wakeup_dev_required) | |
263 | wake_up_interruptible(&priv->waitq); | |
264 | } | |
e775ed7c | 265 | |
a63b22bb | 266 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 267 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
268 | } |
269 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
270 | ||
e0e42da3 | 271 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
272 | { |
273 | int ret = 0; | |
ab65f649 | 274 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 275 | struct sockaddr *phwaddr = addr; |
2af9f039 | 276 | struct cmd_ds_802_11_mac_address cmd; |
876c9d3a | 277 | |
9012b28a | 278 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 279 | |
0a0d08ac | 280 | /* In case it was called from the mesh device */ |
2af9f039 | 281 | dev = priv->dev; |
0a0d08ac | 282 | |
2af9f039 HS |
283 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
284 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
285 | memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN); | |
876c9d3a | 286 | |
2af9f039 | 287 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); |
876c9d3a | 288 | if (ret) { |
9012b28a | 289 | lbs_deb_net("set MAC address failed\n"); |
876c9d3a MT |
290 | goto done; |
291 | } | |
292 | ||
2af9f039 HS |
293 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
294 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 295 | if (priv->mesh_dev) |
2af9f039 | 296 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a MT |
297 | |
298 | done: | |
9012b28a | 299 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
300 | return ret; |
301 | } | |
302 | ||
75bf45a7 DW |
303 | |
304 | static inline int mac_in_list(unsigned char *list, int list_len, | |
305 | unsigned char *mac) | |
876c9d3a | 306 | { |
75bf45a7 DW |
307 | while (list_len) { |
308 | if (!memcmp(list, mac, ETH_ALEN)) | |
309 | return 1; | |
310 | list += ETH_ALEN; | |
311 | list_len--; | |
312 | } | |
313 | return 0; | |
314 | } | |
315 | ||
876c9d3a | 316 | |
75bf45a7 DW |
317 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
318 | struct net_device *dev, int nr_addrs) | |
319 | { | |
320 | int i = nr_addrs; | |
321 | struct dev_mc_list *mc_list; | |
75bf45a7 DW |
322 | |
323 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
324 | return nr_addrs; | |
325 | ||
b9e40857 | 326 | netif_addr_lock_bh(dev); |
75bf45a7 DW |
327 | for (mc_list = dev->mc_list; mc_list; mc_list = mc_list->next) { |
328 | if (mac_in_list(cmd->maclist, nr_addrs, mc_list->dmi_addr)) { | |
e174961c JB |
329 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
330 | mc_list->dmi_addr); | |
75bf45a7 DW |
331 | continue; |
332 | } | |
876c9d3a | 333 | |
75bf45a7 DW |
334 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
335 | break; | |
336 | memcpy(&cmd->maclist[6*i], mc_list->dmi_addr, ETH_ALEN); | |
e174961c JB |
337 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
338 | mc_list->dmi_addr); | |
75bf45a7 | 339 | i++; |
876c9d3a | 340 | } |
b9e40857 | 341 | netif_addr_unlock_bh(dev); |
75bf45a7 DW |
342 | if (mc_list) |
343 | return -EOVERFLOW; | |
344 | ||
876c9d3a | 345 | return i; |
876c9d3a MT |
346 | } |
347 | ||
75bf45a7 | 348 | static void lbs_set_mcast_worker(struct work_struct *work) |
876c9d3a | 349 | { |
75bf45a7 DW |
350 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); |
351 | struct cmd_ds_mac_multicast_adr mcast_cmd; | |
352 | int dev_flags; | |
353 | int nr_addrs; | |
354 | int old_mac_control = priv->mac_control; | |
876c9d3a | 355 | |
9012b28a | 356 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 357 | |
75bf45a7 DW |
358 | dev_flags = priv->dev->flags; |
359 | if (priv->mesh_dev) | |
360 | dev_flags |= priv->mesh_dev->flags; | |
361 | ||
362 | if (dev_flags & IFF_PROMISC) { | |
363 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
364 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
365 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
366 | goto out_set_mac_control; | |
367 | } else if (dev_flags & IFF_ALLMULTI) { | |
368 | do_allmulti: | |
369 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
370 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
371 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
372 | goto out_set_mac_control; | |
876c9d3a MT |
373 | } |
374 | ||
75bf45a7 DW |
375 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
376 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
377 | if (nr_addrs >= 0 && priv->mesh_dev) | |
378 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
379 | if (nr_addrs < 0) | |
380 | goto do_allmulti; | |
381 | ||
382 | if (nr_addrs) { | |
383 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
384 | maclist[6*nr_addrs]); | |
385 | ||
386 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
387 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
388 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
389 | ||
390 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
391 | ||
392 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
393 | } else | |
394 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
395 | ||
396 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
397 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
398 | out_set_mac_control: | |
d9e9778c HS |
399 | if (priv->mac_control != old_mac_control) |
400 | lbs_set_mac_control(priv); | |
876c9d3a | 401 | |
9012b28a | 402 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
403 | } |
404 | ||
e0e42da3 | 405 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 406 | { |
ab65f649 | 407 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
408 | |
409 | schedule_work(&priv->mcast_work); | |
410 | } | |
411 | ||
876c9d3a | 412 | /** |
10078321 | 413 | * @brief This function handles the major jobs in the LBS driver. |
9012b28a HS |
414 | * It handles all events generated by firmware, RX data received |
415 | * from firmware and TX data sent from kernel. | |
876c9d3a | 416 | * |
10078321 | 417 | * @param data A pointer to lbs_thread structure |
876c9d3a MT |
418 | * @return 0 |
419 | */ | |
10078321 | 420 | static int lbs_thread(void *data) |
876c9d3a | 421 | { |
fe336150 | 422 | struct net_device *dev = data; |
ab65f649 | 423 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 424 | wait_queue_t wait; |
876c9d3a | 425 | |
9012b28a | 426 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 427 | |
876c9d3a MT |
428 | init_waitqueue_entry(&wait, current); |
429 | ||
430 | for (;;) { | |
b8d40bc9 | 431 | int shouldsleep; |
7919b89c | 432 | u8 resp_idx; |
b8d40bc9 | 433 | |
7919b89c HS |
434 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
435 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 436 | |
fe336150 | 437 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 438 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 439 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 440 | |
d9f88705 | 441 | if (kthread_should_stop()) |
b8d40bc9 | 442 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
443 | else if (priv->surpriseremoved) |
444 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
445 | else if (priv->psstate == PS_STATE_SLEEP) |
446 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
447 | else if (priv->cmd_timed_out) |
448 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
449 | else if (!priv->fw_ready) |
450 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
451 | else if (priv->dnld_sent) |
452 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
453 | else if (priv->tx_pending_len > 0) |
454 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
455 | else if (priv->resp_len[priv->resp_idx]) |
456 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
457 | else if (priv->cur_cmd) |
458 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
459 | else if (!list_empty(&priv->cmdpendingq) && |
460 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 461 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 462 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 463 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
464 | else |
465 | shouldsleep = 1; /* No command */ | |
466 | ||
467 | if (shouldsleep) { | |
7919b89c | 468 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 469 | "psmode %d, psstate %d\n", |
7919b89c HS |
470 | priv->connect_status, |
471 | priv->psmode, priv->psstate); | |
aa21c004 | 472 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
473 | schedule(); |
474 | } else | |
aa21c004 | 475 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 476 | |
7919b89c HS |
477 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
478 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
479 | |
480 | set_current_state(TASK_RUNNING); | |
fe336150 | 481 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 482 | |
7919b89c HS |
483 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
484 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 485 | |
d9f88705 | 486 | if (kthread_should_stop()) { |
7919b89c | 487 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
488 | break; |
489 | } | |
490 | ||
d9f88705 DW |
491 | if (priv->surpriseremoved) { |
492 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
493 | continue; | |
494 | } | |
876c9d3a | 495 | |
7919b89c HS |
496 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
497 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 498 | |
7919b89c | 499 | /* Process any pending command response */ |
a01f5450 | 500 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
501 | resp_idx = priv->resp_idx; |
502 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 503 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
504 | lbs_process_command_response(priv, |
505 | priv->resp_buf[resp_idx], | |
506 | priv->resp_len[resp_idx]); | |
aa21c004 | 507 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 508 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 509 | } |
7919b89c | 510 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 511 | |
49125454 AK |
512 | /* Process hardware events, e.g. card removed, link lost */ |
513 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 514 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 515 | u32 event; |
7acd72eb | 516 | |
9842c38e SS |
517 | if (kfifo_out(&priv->event_fifo, |
518 | (unsigned char *) &event, sizeof(event)) != | |
519 | sizeof(event)) | |
520 | break; | |
49125454 AK |
521 | spin_unlock_irq(&priv->driver_lock); |
522 | lbs_process_event(priv, event); | |
523 | spin_lock_irq(&priv->driver_lock); | |
524 | } | |
525 | spin_unlock_irq(&priv->driver_lock); | |
526 | ||
527 | if (priv->wakeup_dev_required) { | |
528 | lbs_deb_thread("Waking up device...\n"); | |
529 | /* Wake up device */ | |
530 | if (priv->exit_deep_sleep(priv)) | |
531 | lbs_deb_thread("Wakeup device failed\n"); | |
532 | continue; | |
533 | } | |
534 | ||
7919b89c | 535 | /* command timeout stuff */ |
2a345099 DW |
536 | if (priv->cmd_timed_out && priv->cur_cmd) { |
537 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
538 | ||
57962f0b HS |
539 | if (++priv->nr_retries > 3) { |
540 | lbs_pr_info("Excessive timeouts submitting " | |
541 | "command 0x%04x\n", | |
542 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
2a345099 DW |
543 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); |
544 | priv->nr_retries = 0; | |
b43441a4 | 545 | if (priv->reset_card) |
edf5dabf | 546 | priv->reset_card(priv); |
2a345099 DW |
547 | } else { |
548 | priv->cur_cmd = NULL; | |
02969d29 | 549 | priv->dnld_sent = DNLD_RES_RECEIVED; |
57962f0b HS |
550 | lbs_pr_info("requeueing command 0x%04x due " |
551 | "to timeout (#%d)\n", | |
552 | le16_to_cpu(cmdnode->cmdbuf->command), | |
553 | priv->nr_retries); | |
2a345099 DW |
554 | |
555 | /* Stick it back at the _top_ of the pending queue | |
556 | for immediate resubmission */ | |
557 | list_add(&cmdnode->list, &priv->cmdpendingq); | |
558 | } | |
559 | } | |
560 | priv->cmd_timed_out = 0; | |
561 | ||
876c9d3a | 562 | |
876c9d3a | 563 | |
b15152a4 DW |
564 | if (!priv->fw_ready) |
565 | continue; | |
566 | ||
876c9d3a | 567 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
568 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
569 | !priv->dnld_sent && !priv->cur_cmd) { | |
570 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
571 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
572 | "dnld_sent %d, cur_cmd %p\n", | |
573 | priv->currenttxskb, priv->dnld_sent, | |
574 | priv->cur_cmd); | |
59f3e4bf | 575 | |
d4ff0ef6 | 576 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
577 | } else { |
578 | /* workaround for firmware sending | |
579 | * deauth/linkloss event immediately | |
580 | * after sleep request; remove this | |
581 | * after firmware fixes it | |
582 | */ | |
aa21c004 | 583 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
584 | lbs_pr_alert("ignore PS_SleepConfirm in " |
585 | "non-connected state\n"); | |
876c9d3a MT |
586 | } |
587 | } | |
588 | ||
589 | /* The PS state is changed during processing of Sleep Request | |
590 | * event above | |
591 | */ | |
aa21c004 DW |
592 | if ((priv->psstate == PS_STATE_SLEEP) || |
593 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
594 | continue; |
595 | ||
49125454 AK |
596 | if (priv->is_deep_sleep) |
597 | continue; | |
598 | ||
876c9d3a | 599 | /* Execute the next command */ |
aa21c004 | 600 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 601 | lbs_execute_next_command(priv); |
876c9d3a MT |
602 | |
603 | /* Wake-up command waiters which can't sleep in | |
10078321 | 604 | * lbs_prepare_and_send_command |
876c9d3a | 605 | */ |
aa21c004 DW |
606 | if (!list_empty(&priv->cmdpendingq)) |
607 | wake_up_all(&priv->cmd_pending); | |
2eb188a1 DW |
608 | |
609 | spin_lock_irq(&priv->driver_lock); | |
610 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
611 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
612 | priv->tx_pending_buf, | |
613 | priv->tx_pending_len); | |
614 | if (ret) { | |
615 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
616 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
617 | } | |
618 | priv->tx_pending_len = 0; | |
619 | if (!priv->currenttxskb) { | |
620 | /* We can wake the queues immediately if we aren't | |
621 | waiting for TX feedback */ | |
622 | if (priv->connect_status == LBS_CONNECTED) | |
623 | netif_wake_queue(priv->dev); | |
624 | if (priv->mesh_dev && | |
625 | priv->mesh_connect_status == LBS_CONNECTED) | |
626 | netif_wake_queue(priv->mesh_dev); | |
627 | } | |
628 | } | |
629 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
630 | } |
631 | ||
aa21c004 | 632 | del_timer(&priv->command_timer); |
49125454 | 633 | del_timer(&priv->auto_deepsleep_timer); |
aa21c004 | 634 | wake_up_all(&priv->cmd_pending); |
876c9d3a | 635 | |
9012b28a | 636 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
637 | return 0; |
638 | } | |
639 | ||
ab25ecae DW |
640 | static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy, |
641 | struct cmd_header *cmd) | |
642 | { | |
61d30020 | 643 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae DW |
644 | |
645 | netif_device_detach(priv->dev); | |
646 | if (priv->mesh_dev) | |
647 | netif_device_detach(priv->mesh_dev); | |
648 | ||
649 | priv->fw_ready = 0; | |
61d30020 | 650 | lbs_deb_leave(LBS_DEB_FW); |
ab25ecae DW |
651 | return 0; |
652 | } | |
653 | ||
ab25ecae DW |
654 | int lbs_suspend(struct lbs_private *priv) |
655 | { | |
656 | struct cmd_header cmd; | |
657 | int ret; | |
658 | ||
61d30020 HS |
659 | lbs_deb_enter(LBS_DEB_FW); |
660 | ||
506e9025 DW |
661 | if (priv->wol_criteria == 0xffffffff) { |
662 | lbs_pr_info("Suspend attempt without configuring wake params!\n"); | |
663 | return -EINVAL; | |
664 | } | |
665 | ||
ab25ecae | 666 | memset(&cmd, 0, sizeof(cmd)); |
7e226272 | 667 | |
ab25ecae DW |
668 | ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd, |
669 | sizeof(cmd), lbs_suspend_callback, 0); | |
670 | if (ret) | |
671 | lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret); | |
672 | ||
61d30020 | 673 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
674 | return ret; |
675 | } | |
676 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
677 | ||
a63e5cb2 | 678 | void lbs_resume(struct lbs_private *priv) |
ab25ecae | 679 | { |
61d30020 HS |
680 | lbs_deb_enter(LBS_DEB_FW); |
681 | ||
ab25ecae DW |
682 | priv->fw_ready = 1; |
683 | ||
684 | /* Firmware doesn't seem to give us RX packets any more | |
685 | until we send it some command. Might as well update */ | |
686 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, | |
687 | 0, 0, NULL); | |
688 | ||
689 | netif_device_attach(priv->dev); | |
690 | if (priv->mesh_dev) | |
691 | netif_device_attach(priv->mesh_dev); | |
692 | ||
61d30020 | 693 | lbs_deb_leave(LBS_DEB_FW); |
ab25ecae DW |
694 | } |
695 | EXPORT_SYMBOL_GPL(lbs_resume); | |
696 | ||
1df4e8fe | 697 | /** |
b4836599 CM |
698 | * @brief This function gets the HW spec from the firmware and sets |
699 | * some basic parameters. | |
1df4e8fe | 700 | * |
69f9032d | 701 | * @param priv A pointer to struct lbs_private structure |
1df4e8fe HS |
702 | * @return 0 or -1 |
703 | */ | |
69f9032d | 704 | static int lbs_setup_firmware(struct lbs_private *priv) |
1df4e8fe HS |
705 | { |
706 | int ret = -1; | |
87c8c72d | 707 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; |
1df4e8fe HS |
708 | |
709 | lbs_deb_enter(LBS_DEB_FW); | |
710 | ||
87c8c72d | 711 | /* Read MAC address from firmware */ |
aa21c004 | 712 | memset(priv->current_addr, 0xff, ETH_ALEN); |
6e66f03f | 713 | ret = lbs_update_hw_spec(priv); |
ef85ad54 | 714 | if (ret) |
1df4e8fe | 715 | goto done; |
1df4e8fe | 716 | |
87c8c72d DW |
717 | /* Read power levels if available */ |
718 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
719 | if (ret == 0) { | |
720 | priv->txpower_cur = curlevel; | |
721 | priv->txpower_min = minlevel; | |
722 | priv->txpower_max = maxlevel; | |
723 | } | |
724 | ||
d9e9778c | 725 | lbs_set_mac_control(priv); |
1df4e8fe HS |
726 | done: |
727 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
728 | return ret; | |
729 | } | |
730 | ||
1df4e8fe HS |
731 | /** |
732 | * This function handles the timeout of command sending. | |
733 | * It will re-send the same command again. | |
734 | */ | |
735 | static void command_timer_fn(unsigned long data) | |
736 | { | |
69f9032d | 737 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
738 | unsigned long flags; |
739 | ||
61d30020 | 740 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 741 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 742 | |
57962f0b | 743 | if (!priv->cur_cmd) |
2a345099 | 744 | goto out; |
1df4e8fe | 745 | |
57962f0b HS |
746 | lbs_pr_info("command 0x%04x timed out\n", |
747 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 748 | |
2a345099 | 749 | priv->cmd_timed_out = 1; |
1df4e8fe | 750 | wake_up_interruptible(&priv->waitq); |
61d30020 | 751 | out: |
2a345099 | 752 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 753 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
754 | } |
755 | ||
49125454 AK |
756 | /** |
757 | * This function put the device back to deep sleep mode when timer expires | |
758 | * and no activity (command, event, data etc.) is detected. | |
759 | */ | |
760 | static void auto_deepsleep_timer_fn(unsigned long data) | |
761 | { | |
762 | struct lbs_private *priv = (struct lbs_private *)data; | |
763 | int ret; | |
764 | ||
765 | lbs_deb_enter(LBS_DEB_CMD); | |
766 | ||
767 | if (priv->is_activity_detected) { | |
768 | priv->is_activity_detected = 0; | |
769 | } else { | |
770 | if (priv->is_auto_deep_sleep_enabled && | |
771 | (!priv->wakeup_dev_required) && | |
772 | (priv->connect_status != LBS_CONNECTED)) { | |
773 | lbs_deb_main("Entering auto deep sleep mode...\n"); | |
774 | ret = lbs_prepare_and_send_command(priv, | |
775 | CMD_802_11_DEEP_SLEEP, 0, | |
776 | 0, 0, NULL); | |
c0bbd576 AK |
777 | if (ret) |
778 | lbs_pr_err("Enter Deep Sleep command failed\n"); | |
49125454 AK |
779 | } |
780 | } | |
781 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
782 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
783 | lbs_deb_leave(LBS_DEB_CMD); | |
784 | } | |
785 | ||
786 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
787 | { | |
788 | lbs_deb_enter(LBS_DEB_SDIO); | |
789 | ||
790 | priv->is_auto_deep_sleep_enabled = 1; | |
791 | if (priv->is_deep_sleep) | |
792 | priv->wakeup_dev_required = 1; | |
793 | mod_timer(&priv->auto_deepsleep_timer , | |
794 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
795 | ||
796 | lbs_deb_leave(LBS_DEB_SDIO); | |
797 | return 0; | |
798 | } | |
799 | ||
800 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
801 | { | |
802 | lbs_deb_enter(LBS_DEB_SDIO); | |
803 | ||
804 | priv->is_auto_deep_sleep_enabled = 0; | |
805 | priv->auto_deep_sleep_timeout = 0; | |
806 | del_timer(&priv->auto_deepsleep_timer); | |
807 | ||
808 | lbs_deb_leave(LBS_DEB_SDIO); | |
809 | return 0; | |
810 | } | |
811 | ||
e226868e HS |
812 | static void lbs_sync_channel_worker(struct work_struct *work) |
813 | { | |
814 | struct lbs_private *priv = container_of(work, struct lbs_private, | |
815 | sync_channel); | |
816 | ||
817 | lbs_deb_enter(LBS_DEB_MAIN); | |
818 | if (lbs_update_channel(priv)) | |
819 | lbs_pr_info("Channel synchronization failed."); | |
820 | lbs_deb_leave(LBS_DEB_MAIN); | |
821 | } | |
822 | ||
823 | ||
69f9032d | 824 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 825 | { |
1df4e8fe | 826 | size_t bufsize; |
954ee164 | 827 | int i, ret = 0; |
1df4e8fe | 828 | |
61d30020 HS |
829 | lbs_deb_enter(LBS_DEB_MAIN); |
830 | ||
1df4e8fe HS |
831 | /* Allocate buffer to store the BSSID list */ |
832 | bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor); | |
aa21c004 DW |
833 | priv->networks = kzalloc(bufsize, GFP_KERNEL); |
834 | if (!priv->networks) { | |
1df4e8fe | 835 | lbs_pr_err("Out of memory allocating beacons\n"); |
954ee164 DW |
836 | ret = -1; |
837 | goto out; | |
1df4e8fe HS |
838 | } |
839 | ||
954ee164 | 840 | /* Initialize scan result lists */ |
aa21c004 DW |
841 | INIT_LIST_HEAD(&priv->network_free_list); |
842 | INIT_LIST_HEAD(&priv->network_list); | |
954ee164 | 843 | for (i = 0; i < MAX_NETWORK_COUNT; i++) { |
aa21c004 DW |
844 | list_add_tail(&priv->networks[i].list, |
845 | &priv->network_free_list); | |
954ee164 | 846 | } |
1df4e8fe | 847 | |
aa21c004 | 848 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 849 | |
aa21c004 DW |
850 | priv->connect_status = LBS_DISCONNECTED; |
851 | priv->mesh_connect_status = LBS_DISCONNECTED; | |
852 | priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM; | |
853 | priv->mode = IW_MODE_INFRA; | |
c14951fe | 854 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 855 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 856 | priv->radio_on = 1; |
85319f93 | 857 | priv->enablehwauto = 1; |
aa21c004 DW |
858 | priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; |
859 | priv->psmode = LBS802_11POWERMODECAM; | |
860 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
861 | priv->is_deep_sleep = 0; |
862 | priv->is_auto_deep_sleep_enabled = 0; | |
863 | priv->wakeup_dev_required = 0; | |
864 | init_waitqueue_head(&priv->ds_awake_q); | |
1df4e8fe | 865 | |
aa21c004 | 866 | mutex_init(&priv->lock); |
1df4e8fe | 867 | |
aa21c004 | 868 | setup_timer(&priv->command_timer, command_timer_fn, |
61d30020 | 869 | (unsigned long)priv); |
49125454 AK |
870 | setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, |
871 | (unsigned long)priv); | |
1df4e8fe | 872 | |
aa21c004 DW |
873 | INIT_LIST_HEAD(&priv->cmdfreeq); |
874 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
1df4e8fe | 875 | |
aa21c004 DW |
876 | spin_lock_init(&priv->driver_lock); |
877 | init_waitqueue_head(&priv->cmd_pending); | |
1df4e8fe | 878 | |
954ee164 | 879 | /* Allocate the command buffers */ |
10078321 | 880 | if (lbs_allocate_cmd_buffer(priv)) { |
954ee164 | 881 | lbs_pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
882 | ret = -ENOMEM; |
883 | goto out; | |
884 | } | |
885 | priv->resp_idx = 0; | |
886 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
887 | ||
888 | /* Create the event FIFO */ | |
c1e13f25 | 889 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 890 | if (ret) { |
7919b89c | 891 | lbs_pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 892 | goto out; |
954ee164 | 893 | } |
1df4e8fe | 894 | |
954ee164 | 895 | out: |
61d30020 HS |
896 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
897 | ||
954ee164 DW |
898 | return ret; |
899 | } | |
1df4e8fe | 900 | |
69f9032d | 901 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 902 | { |
61d30020 | 903 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 904 | |
61d30020 | 905 | lbs_free_cmd_buffer(priv); |
45465487 | 906 | kfifo_free(&priv->event_fifo); |
aa21c004 | 907 | del_timer(&priv->command_timer); |
49125454 | 908 | del_timer(&priv->auto_deepsleep_timer); |
aa21c004 DW |
909 | kfree(priv->networks); |
910 | priv->networks = NULL; | |
61d30020 HS |
911 | |
912 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
913 | } |
914 | ||
f02abf10 SH |
915 | static const struct net_device_ops lbs_netdev_ops = { |
916 | .ndo_open = lbs_dev_open, | |
917 | .ndo_stop = lbs_eth_stop, | |
918 | .ndo_start_xmit = lbs_hard_start_xmit, | |
919 | .ndo_set_mac_address = lbs_set_mac_address, | |
920 | .ndo_tx_timeout = lbs_tx_timeout, | |
921 | .ndo_set_multicast_list = lbs_set_multicast_list, | |
922 | .ndo_change_mtu = eth_change_mtu, | |
923 | .ndo_validate_addr = eth_validate_addr, | |
924 | }; | |
925 | ||
876c9d3a MT |
926 | /** |
927 | * @brief This function adds the card. it will probe the | |
10078321 | 928 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a MT |
929 | * |
930 | * @param card A pointer to card | |
69f9032d | 931 | * @return A pointer to struct lbs_private structure |
876c9d3a | 932 | */ |
69f9032d | 933 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 934 | { |
ff9fc791 HS |
935 | struct net_device *dev; |
936 | struct wireless_dev *wdev; | |
69f9032d | 937 | struct lbs_private *priv = NULL; |
876c9d3a | 938 | |
61d30020 | 939 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
940 | |
941 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
942 | wdev = lbs_cfg_alloc(dmdev); |
943 | if (IS_ERR(wdev)) { | |
944 | lbs_pr_err("cfg80211 init failed\n"); | |
954ee164 | 945 | goto done; |
876c9d3a | 946 | } |
ff9fc791 HS |
947 | /* TODO? */ |
948 | wdev->iftype = NL80211_IFTYPE_STATION; | |
949 | priv = wdev_priv(wdev); | |
950 | priv->wdev = wdev; | |
876c9d3a | 951 | |
10078321 | 952 | if (lbs_init_adapter(priv)) { |
954ee164 | 953 | lbs_pr_err("failed to initialize adapter structure.\n"); |
ff9fc791 HS |
954 | goto err_wdev; |
955 | } | |
956 | ||
957 | //TODO? dev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES); | |
958 | dev = alloc_netdev(0, "wlan%d", ether_setup); | |
959 | if (!dev) { | |
960 | dev_err(dmdev, "no memory for network device instance\n"); | |
961 | goto err_adapter; | |
954ee164 DW |
962 | } |
963 | ||
ff9fc791 HS |
964 | dev->ieee80211_ptr = wdev; |
965 | dev->ml_priv = priv; | |
966 | SET_NETDEV_DEV(dev, dmdev); | |
967 | wdev->netdev = dev; | |
634b8f49 | 968 | priv->dev = dev; |
876c9d3a | 969 | |
f02abf10 | 970 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 971 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 972 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 973 | #ifdef WIRELESS_EXT |
f02abf10 | 974 | dev->wireless_handlers = &lbs_handler_def; |
876c9d3a | 975 | #endif |
876c9d3a | 976 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 977 | |
ff9fc791 HS |
978 | |
979 | // TODO: kzalloc + iwm_init_default_profile(iwm, iwm->umac_profile); ?? | |
980 | ||
981 | ||
982 | priv->card = card; | |
ff9fc791 HS |
983 | priv->infra_open = 0; |
984 | ||
7732ca45 | 985 | |
965f8bbc | 986 | priv->rtap_net_dev = NULL; |
c00552c6 | 987 | strcpy(dev->name, "wlan%d"); |
954ee164 DW |
988 | |
989 | lbs_deb_thread("Starting main thread...\n"); | |
990 | init_waitqueue_head(&priv->waitq); | |
10078321 | 991 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
954ee164 DW |
992 | if (IS_ERR(priv->main_thread)) { |
993 | lbs_deb_thread("Error creating main thread.\n"); | |
ff9fc791 | 994 | goto err_ndev; |
954ee164 DW |
995 | } |
996 | ||
10078321 HS |
997 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
998 | INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker); | |
999 | INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); | |
75bf45a7 | 1000 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
e226868e | 1001 | INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker); |
954ee164 | 1002 | |
e0e42da3 | 1003 | priv->mesh_open = 0; |
23a397ac DW |
1004 | sprintf(priv->mesh_ssid, "mesh"); |
1005 | priv->mesh_ssid_len = 4; | |
1006 | ||
506e9025 DW |
1007 | priv->wol_criteria = 0xffffffff; |
1008 | priv->wol_gpio = 0xff; | |
1009 | ||
32a74b7c HS |
1010 | goto done; |
1011 | ||
ff9fc791 | 1012 | err_ndev: |
32a74b7c | 1013 | free_netdev(dev); |
ff9fc791 HS |
1014 | |
1015 | err_adapter: | |
1016 | lbs_free_adapter(priv); | |
1017 | ||
1018 | err_wdev: | |
1019 | lbs_cfg_free(priv); | |
1020 | ||
6a812157 | 1021 | priv = NULL; |
954ee164 | 1022 | |
32a74b7c | 1023 | done: |
61d30020 | 1024 | lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); |
32a74b7c HS |
1025 | return priv; |
1026 | } | |
10078321 | 1027 | EXPORT_SYMBOL_GPL(lbs_add_card); |
32a74b7c | 1028 | |
954ee164 | 1029 | |
a63e5cb2 | 1030 | void lbs_remove_card(struct lbs_private *priv) |
32a74b7c | 1031 | { |
634b8f49 | 1032 | struct net_device *dev = priv->dev; |
32a74b7c HS |
1033 | |
1034 | lbs_deb_enter(LBS_DEB_MAIN); | |
876c9d3a | 1035 | |
23a397ac | 1036 | lbs_remove_mesh(priv); |
10078321 | 1037 | lbs_remove_rtap(priv); |
876c9d3a | 1038 | |
954ee164 | 1039 | dev = priv->dev; |
2afc0c5d | 1040 | |
652e3f20 HS |
1041 | cancel_delayed_work_sync(&priv->scan_work); |
1042 | cancel_delayed_work_sync(&priv->assoc_work); | |
75bf45a7 | 1043 | cancel_work_sync(&priv->mcast_work); |
71b35f3a DW |
1044 | |
1045 | /* worker thread destruction blocks on the in-flight command which | |
1046 | * should have been cleared already in lbs_stop_card(). | |
1047 | */ | |
1048 | lbs_deb_main("destroying worker thread\n"); | |
954ee164 | 1049 | destroy_workqueue(priv->work_thread); |
71b35f3a | 1050 | lbs_deb_main("done destroying worker thread\n"); |
876c9d3a | 1051 | |
aa21c004 DW |
1052 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
1053 | priv->psmode = LBS802_11POWERMODECAM; | |
10078321 | 1054 | lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); |
876c9d3a MT |
1055 | } |
1056 | ||
fea2b8ec | 1057 | lbs_send_disconnect_notification(priv); |
954ee164 | 1058 | |
49125454 AK |
1059 | if (priv->is_deep_sleep) { |
1060 | priv->is_deep_sleep = 0; | |
1061 | wake_up_interruptible(&priv->ds_awake_q); | |
1062 | } | |
1063 | ||
954ee164 | 1064 | /* Stop the thread servicing the interrupts */ |
aa21c004 | 1065 | priv->surpriseremoved = 1; |
954ee164 DW |
1066 | kthread_stop(priv->main_thread); |
1067 | ||
10078321 | 1068 | lbs_free_adapter(priv); |
ff9fc791 | 1069 | lbs_cfg_free(priv); |
954ee164 DW |
1070 | |
1071 | priv->dev = NULL; | |
1072 | free_netdev(dev); | |
1073 | ||
1074 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 1075 | } |
10078321 | 1076 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
1077 | |
1078 | ||
69f9032d | 1079 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
1080 | { |
1081 | struct net_device *dev = priv->dev; | |
1082 | int ret = -1; | |
1083 | ||
1084 | lbs_deb_enter(LBS_DEB_MAIN); | |
1085 | ||
1086 | /* poke the firmware */ | |
10078321 | 1087 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
1088 | if (ret) |
1089 | goto done; | |
1090 | ||
ff9fc791 HS |
1091 | if (lbs_cfg_register(priv)) { |
1092 | lbs_pr_err("cannot register device\n"); | |
954ee164 | 1093 | goto done; |
876c9d3a | 1094 | } |
020f3d00 | 1095 | |
020f3d00 | 1096 | lbs_update_channel(priv); |
020f3d00 | 1097 | |
e0e42da3 HS |
1098 | /* |
1099 | * While rtap isn't related to mesh, only mesh-enabled | |
1100 | * firmware implements the rtap functionality via | |
1101 | * CMD_802_11_MONITOR_MODE. | |
684d6b36 | 1102 | */ |
e0e42da3 | 1103 | if (lbs_init_mesh(priv)) { |
684d6b36 BZ |
1104 | if (device_create_file(&dev->dev, &dev_attr_lbs_rtap)) |
1105 | lbs_pr_err("cannot register lbs_rtap attribute\n"); | |
020f3d00 | 1106 | } |
876c9d3a | 1107 | |
10078321 | 1108 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 1109 | |
954ee164 DW |
1110 | lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name); |
1111 | ||
32a74b7c | 1112 | ret = 0; |
876c9d3a | 1113 | |
32a74b7c | 1114 | done: |
954ee164 DW |
1115 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
1116 | return ret; | |
1117 | } | |
10078321 | 1118 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
1119 | |
1120 | ||
a63e5cb2 | 1121 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 1122 | { |
43baa5bb | 1123 | struct net_device *dev; |
954ee164 DW |
1124 | struct cmd_ctrl_node *cmdnode; |
1125 | unsigned long flags; | |
1126 | ||
1127 | lbs_deb_enter(LBS_DEB_MAIN); | |
1128 | ||
652e3f20 HS |
1129 | if (!priv) |
1130 | goto out; | |
43baa5bb | 1131 | dev = priv->dev; |
652e3f20 | 1132 | |
43baa5bb JL |
1133 | netif_stop_queue(dev); |
1134 | netif_carrier_off(dev); | |
954ee164 | 1135 | |
10078321 | 1136 | lbs_debugfs_remove_one(priv); |
e0e42da3 | 1137 | if (lbs_deinit_mesh(priv)) |
3b72b01d | 1138 | device_remove_file(&dev->dev, &dev_attr_lbs_rtap); |
954ee164 | 1139 | |
71b35f3a | 1140 | /* Delete the timeout of the currently processing command */ |
652e3f20 | 1141 | del_timer_sync(&priv->command_timer); |
49125454 | 1142 | del_timer_sync(&priv->auto_deepsleep_timer); |
71b35f3a DW |
1143 | |
1144 | /* Flush pending command nodes */ | |
aa21c004 | 1145 | spin_lock_irqsave(&priv->driver_lock, flags); |
71b35f3a | 1146 | lbs_deb_main("clearing pending commands\n"); |
aa21c004 | 1147 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { |
ae125bf8 | 1148 | cmdnode->result = -ENOENT; |
954ee164 DW |
1149 | cmdnode->cmdwaitqwoken = 1; |
1150 | wake_up_interruptible(&cmdnode->cmdwait_q); | |
1151 | } | |
71b35f3a DW |
1152 | |
1153 | /* Flush the command the card is currently processing */ | |
1154 | if (priv->cur_cmd) { | |
1155 | lbs_deb_main("clearing current command\n"); | |
1156 | priv->cur_cmd->result = -ENOENT; | |
1157 | priv->cur_cmd->cmdwaitqwoken = 1; | |
1158 | wake_up_interruptible(&priv->cur_cmd->cmdwait_q); | |
1159 | } | |
1160 | lbs_deb_main("done clearing commands\n"); | |
aa21c004 | 1161 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
954ee164 DW |
1162 | |
1163 | unregister_netdev(dev); | |
1164 | ||
652e3f20 | 1165 | out: |
a63e5cb2 | 1166 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1167 | } |
10078321 | 1168 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1169 | |
876c9d3a | 1170 | |
7919b89c HS |
1171 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1172 | { | |
1173 | unsigned long flags; | |
1174 | ||
1175 | lbs_deb_enter(LBS_DEB_THREAD); | |
1176 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1177 | ||
1178 | if (priv->psstate == PS_STATE_SLEEP) | |
1179 | priv->psstate = PS_STATE_AWAKE; | |
1180 | ||
7acd72eb | 1181 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c HS |
1182 | |
1183 | wake_up_interruptible(&priv->waitq); | |
1184 | ||
1185 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1186 | lbs_deb_leave(LBS_DEB_THREAD); | |
1187 | } | |
1188 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1189 | ||
1190 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1191 | { |
ed37b516 | 1192 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1193 | |
4f679496 | 1194 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1195 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1196 | |
1197 | /* Swap buffers by flipping the response index */ | |
1198 | BUG_ON(resp_idx > 1); | |
1199 | priv->resp_idx = resp_idx; | |
1200 | ||
fe336150 | 1201 | wake_up_interruptible(&priv->waitq); |
876c9d3a | 1202 | |
ed37b516 | 1203 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1204 | } |
7919b89c | 1205 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1206 | |
4fb910fd | 1207 | static int __init lbs_init_module(void) |
876c9d3a | 1208 | { |
9012b28a | 1209 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1210 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1211 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1212 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
1213 | confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED); | |
10078321 | 1214 | lbs_debugfs_init(); |
084708b6 HS |
1215 | lbs_deb_leave(LBS_DEB_MAIN); |
1216 | return 0; | |
876c9d3a MT |
1217 | } |
1218 | ||
4fb910fd | 1219 | static void __exit lbs_exit_module(void) |
876c9d3a | 1220 | { |
9012b28a | 1221 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1222 | lbs_debugfs_remove(); |
9012b28a | 1223 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1224 | } |
1225 | ||
965f8bbc LCC |
1226 | /* |
1227 | * rtap interface support fuctions | |
1228 | */ | |
1229 | ||
10078321 | 1230 | static int lbs_rtap_open(struct net_device *dev) |
965f8bbc | 1231 | { |
8552855f | 1232 | /* Yes, _stop_ the queue. Because we don't support injection */ |
61d30020 HS |
1233 | lbs_deb_enter(LBS_DEB_MAIN); |
1234 | netif_carrier_off(dev); | |
1235 | netif_stop_queue(dev); | |
1236 | lbs_deb_leave(LBS_DEB_LEAVE); | |
1237 | return 0; | |
965f8bbc LCC |
1238 | } |
1239 | ||
10078321 | 1240 | static int lbs_rtap_stop(struct net_device *dev) |
965f8bbc | 1241 | { |
61d30020 HS |
1242 | lbs_deb_enter(LBS_DEB_MAIN); |
1243 | lbs_deb_leave(LBS_DEB_MAIN); | |
1244 | return 0; | |
965f8bbc LCC |
1245 | } |
1246 | ||
d0cf9c0d SH |
1247 | static netdev_tx_t lbs_rtap_hard_start_xmit(struct sk_buff *skb, |
1248 | struct net_device *dev) | |
965f8bbc | 1249 | { |
61d30020 HS |
1250 | netif_stop_queue(dev); |
1251 | return NETDEV_TX_BUSY; | |
965f8bbc LCC |
1252 | } |
1253 | ||
2fd6cfe3 | 1254 | static void lbs_remove_rtap(struct lbs_private *priv) |
965f8bbc | 1255 | { |
61d30020 | 1256 | lbs_deb_enter(LBS_DEB_MAIN); |
965f8bbc | 1257 | if (priv->rtap_net_dev == NULL) |
5f505d90 | 1258 | goto out; |
965f8bbc | 1259 | unregister_netdev(priv->rtap_net_dev); |
d9268fb9 | 1260 | free_netdev(priv->rtap_net_dev); |
965f8bbc | 1261 | priv->rtap_net_dev = NULL; |
5f505d90 | 1262 | out: |
61d30020 | 1263 | lbs_deb_leave(LBS_DEB_MAIN); |
965f8bbc LCC |
1264 | } |
1265 | ||
f02abf10 SH |
1266 | static const struct net_device_ops rtap_netdev_ops = { |
1267 | .ndo_open = lbs_rtap_open, | |
1268 | .ndo_stop = lbs_rtap_stop, | |
1269 | .ndo_start_xmit = lbs_rtap_hard_start_xmit, | |
1270 | }; | |
1271 | ||
2fd6cfe3 | 1272 | static int lbs_add_rtap(struct lbs_private *priv) |
965f8bbc | 1273 | { |
61d30020 | 1274 | int ret = 0; |
d9268fb9 | 1275 | struct net_device *rtap_dev; |
965f8bbc | 1276 | |
61d30020 HS |
1277 | lbs_deb_enter(LBS_DEB_MAIN); |
1278 | if (priv->rtap_net_dev) { | |
1279 | ret = -EPERM; | |
1280 | goto out; | |
1281 | } | |
965f8bbc | 1282 | |
d9268fb9 | 1283 | rtap_dev = alloc_netdev(0, "rtap%d", ether_setup); |
61d30020 HS |
1284 | if (rtap_dev == NULL) { |
1285 | ret = -ENOMEM; | |
1286 | goto out; | |
1287 | } | |
965f8bbc | 1288 | |
121947c6 | 1289 | memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN); |
d9268fb9 | 1290 | rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
f02abf10 | 1291 | rtap_dev->netdev_ops = &rtap_netdev_ops; |
4ceb7b6a | 1292 | rtap_dev->ml_priv = priv; |
229ce3ab | 1293 | SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent); |
965f8bbc | 1294 | |
61d30020 HS |
1295 | ret = register_netdev(rtap_dev); |
1296 | if (ret) { | |
d9268fb9 | 1297 | free_netdev(rtap_dev); |
61d30020 | 1298 | goto out; |
965f8bbc | 1299 | } |
d9268fb9 | 1300 | priv->rtap_net_dev = rtap_dev; |
965f8bbc | 1301 | |
61d30020 HS |
1302 | out: |
1303 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); | |
1304 | return ret; | |
965f8bbc LCC |
1305 | } |
1306 | ||
10078321 HS |
1307 | module_init(lbs_init_module); |
1308 | module_exit(lbs_exit_module); | |
876c9d3a | 1309 | |
084708b6 | 1310 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1311 | MODULE_AUTHOR("Marvell International Ltd."); |
1312 | MODULE_LICENSE("GPL"); |