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> |
5a0e3ad6 | 14 | #include <linux/slab.h> |
ff9fc791 | 15 | #include <net/cfg80211.h> |
876c9d3a MT |
16 | |
17 | #include "host.h" | |
876c9d3a MT |
18 | #include "decl.h" |
19 | #include "dev.h" | |
ff9fc791 | 20 | #include "cfg.h" |
876c9d3a | 21 | #include "debugfs.h" |
6e66f03f | 22 | #include "cmd.h" |
876c9d3a | 23 | |
7856a541 | 24 | #define DRIVER_RELEASE_VERSION "323.p0" |
10078321 | 25 | const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION |
3ce40232 DW |
26 | #ifdef DEBUG |
27 | "-dbg" | |
28 | #endif | |
29 | ""; | |
30 | ||
a46c6410 HS |
31 | |
32 | /* Module parameters */ | |
10078321 HS |
33 | unsigned int lbs_debug; |
34 | EXPORT_SYMBOL_GPL(lbs_debug); | |
35 | module_param_named(libertas_debug, lbs_debug, int, 0644); | |
a46c6410 HS |
36 | |
37 | ||
f539f2ef HS |
38 | /* This global structure is used to send the confirm_sleep command as |
39 | * fast as possible down to the firmware. */ | |
40 | struct cmd_confirm_sleep confirm_sleep; | |
41 | ||
42 | ||
876c9d3a | 43 | /** |
8c512765 | 44 | * the table to keep region code |
876c9d3a | 45 | */ |
10078321 | 46 | u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
8c512765 | 47 | { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; |
876c9d3a | 48 | |
876c9d3a | 49 | /** |
8c512765 DW |
50 | * FW rate table. FW refers to rates by their index in this table, not by the |
51 | * rate value itself. Values of 0x00 are | |
52 | * reserved positions. | |
876c9d3a | 53 | */ |
8c512765 DW |
54 | static u8 fw_data_rates[MAX_RATES] = |
55 | { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, | |
56 | 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 | |
57 | }; | |
876c9d3a | 58 | |
876c9d3a | 59 | /** |
8c512765 DW |
60 | * @brief use index to get the data rate |
61 | * | |
62 | * @param idx The index of data rate | |
63 | * @return data rate or 0 | |
876c9d3a | 64 | */ |
10078321 | 65 | u32 lbs_fw_index_to_data_rate(u8 idx) |
8c512765 DW |
66 | { |
67 | if (idx >= sizeof(fw_data_rates)) | |
68 | idx = 0; | |
69 | return fw_data_rates[idx]; | |
70 | } | |
71 | ||
72 | /** | |
73 | * @brief use rate to get the index | |
74 | * | |
75 | * @param rate data rate | |
76 | * @return index or 0 | |
77 | */ | |
10078321 | 78 | u8 lbs_data_rate_to_fw_index(u32 rate) |
8c512765 DW |
79 | { |
80 | u8 i; | |
81 | ||
82 | if (!rate) | |
83 | return 0; | |
84 | ||
85 | for (i = 0; i < sizeof(fw_data_rates); i++) { | |
86 | if (rate == fw_data_rates[i]) | |
87 | return i; | |
88 | } | |
89 | return 0; | |
90 | } | |
876c9d3a | 91 | |
6fb53252 | 92 | |
23a397ac | 93 | /** |
e0e42da3 | 94 | * @brief This function opens the ethX interface |
876c9d3a MT |
95 | * |
96 | * @param dev A pointer to net_device structure | |
8552855f | 97 | * @return 0 or -EBUSY if monitor mode active |
876c9d3a | 98 | */ |
10078321 | 99 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 100 | { |
ab65f649 | 101 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 102 | int ret = 0; |
876c9d3a | 103 | |
61d30020 HS |
104 | lbs_deb_enter(LBS_DEB_NET); |
105 | ||
8552855f | 106 | spin_lock_irq(&priv->driver_lock); |
876c9d3a | 107 | |
e0e42da3 HS |
108 | if (priv->connect_status == LBS_CONNECTED) |
109 | netif_carrier_on(dev); | |
110 | else | |
111 | netif_carrier_off(dev); | |
876c9d3a | 112 | |
8552855f DW |
113 | if (!priv->tx_pending_len) |
114 | netif_wake_queue(dev); | |
876c9d3a | 115 | |
8552855f | 116 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 117 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 118 | return ret; |
876c9d3a MT |
119 | } |
120 | ||
876c9d3a MT |
121 | /** |
122 | * @brief This function closes the ethX interface | |
123 | * | |
124 | * @param dev A pointer to net_device structure | |
125 | * @return 0 | |
126 | */ | |
8552855f | 127 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 128 | { |
ab65f649 | 129 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 130 | |
61d30020 | 131 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 132 | |
61d30020 | 133 | spin_lock_irq(&priv->driver_lock); |
8552855f | 134 | netif_stop_queue(dev); |
8552855f | 135 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 136 | |
75bf45a7 DW |
137 | schedule_work(&priv->mcast_work); |
138 | ||
61d30020 | 139 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 140 | return 0; |
876c9d3a MT |
141 | } |
142 | ||
10078321 | 143 | static void lbs_tx_timeout(struct net_device *dev) |
876c9d3a | 144 | { |
ab65f649 | 145 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 146 | |
9012b28a | 147 | lbs_deb_enter(LBS_DEB_TX); |
876c9d3a | 148 | |
9012b28a | 149 | lbs_pr_err("tx watch dog timeout\n"); |
876c9d3a | 150 | |
1ae5dc34 | 151 | dev->trans_start = jiffies; /* prevent tx timeout */ |
876c9d3a | 152 | |
7919b89c HS |
153 | if (priv->currenttxskb) |
154 | lbs_send_tx_feedback(priv, 0); | |
155 | ||
a63b22bb DW |
156 | /* XX: Shouldn't we also call into the hw-specific driver |
157 | to kick it somehow? */ | |
158 | lbs_host_to_card_done(priv); | |
876c9d3a | 159 | |
354eca98 DW |
160 | /* More often than not, this actually happens because the |
161 | firmware has crapped itself -- rather than just a very | |
162 | busy medium. So send a harmless command, and if/when | |
163 | _that_ times out, we'll kick it in the head. */ | |
164 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, | |
165 | 0, 0, NULL); | |
166 | ||
9012b28a | 167 | lbs_deb_leave(LBS_DEB_TX); |
876c9d3a MT |
168 | } |
169 | ||
e775ed7c DW |
170 | void lbs_host_to_card_done(struct lbs_private *priv) |
171 | { | |
a63b22bb DW |
172 | unsigned long flags; |
173 | ||
61d30020 HS |
174 | lbs_deb_enter(LBS_DEB_THREAD); |
175 | ||
a63b22bb | 176 | spin_lock_irqsave(&priv->driver_lock, flags); |
e775ed7c DW |
177 | |
178 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
179 | ||
180 | /* Wake main thread if commands are pending */ | |
49125454 AK |
181 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
182 | if (!priv->wakeup_dev_required) | |
183 | wake_up_interruptible(&priv->waitq); | |
184 | } | |
e775ed7c | 185 | |
a63b22bb | 186 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 187 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
188 | } |
189 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
190 | ||
e0e42da3 | 191 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
192 | { |
193 | int ret = 0; | |
ab65f649 | 194 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 195 | struct sockaddr *phwaddr = addr; |
2af9f039 | 196 | struct cmd_ds_802_11_mac_address cmd; |
876c9d3a | 197 | |
9012b28a | 198 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 199 | |
0a0d08ac | 200 | /* In case it was called from the mesh device */ |
2af9f039 | 201 | dev = priv->dev; |
0a0d08ac | 202 | |
2af9f039 HS |
203 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
204 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
205 | memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN); | |
876c9d3a | 206 | |
2af9f039 | 207 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); |
876c9d3a | 208 | if (ret) { |
9012b28a | 209 | lbs_deb_net("set MAC address failed\n"); |
876c9d3a MT |
210 | goto done; |
211 | } | |
212 | ||
2af9f039 HS |
213 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
214 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 215 | if (priv->mesh_dev) |
2af9f039 | 216 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a MT |
217 | |
218 | done: | |
9012b28a | 219 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
220 | return ret; |
221 | } | |
222 | ||
75bf45a7 DW |
223 | |
224 | static inline int mac_in_list(unsigned char *list, int list_len, | |
225 | unsigned char *mac) | |
876c9d3a | 226 | { |
75bf45a7 DW |
227 | while (list_len) { |
228 | if (!memcmp(list, mac, ETH_ALEN)) | |
229 | return 1; | |
230 | list += ETH_ALEN; | |
231 | list_len--; | |
232 | } | |
233 | return 0; | |
234 | } | |
235 | ||
876c9d3a | 236 | |
75bf45a7 DW |
237 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
238 | struct net_device *dev, int nr_addrs) | |
239 | { | |
240 | int i = nr_addrs; | |
22bedad3 | 241 | struct netdev_hw_addr *ha; |
655ffee2 | 242 | int cnt; |
75bf45a7 DW |
243 | |
244 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
245 | return nr_addrs; | |
246 | ||
b9e40857 | 247 | netif_addr_lock_bh(dev); |
655ffee2 | 248 | cnt = netdev_mc_count(dev); |
22bedad3 JP |
249 | netdev_for_each_mc_addr(ha, dev) { |
250 | if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { | |
e174961c | 251 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
22bedad3 | 252 | ha->addr); |
655ffee2 | 253 | cnt--; |
75bf45a7 DW |
254 | continue; |
255 | } | |
876c9d3a | 256 | |
75bf45a7 DW |
257 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
258 | break; | |
22bedad3 | 259 | memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); |
e174961c | 260 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
22bedad3 | 261 | ha->addr); |
75bf45a7 | 262 | i++; |
655ffee2 | 263 | cnt--; |
876c9d3a | 264 | } |
b9e40857 | 265 | netif_addr_unlock_bh(dev); |
655ffee2 | 266 | if (cnt) |
75bf45a7 DW |
267 | return -EOVERFLOW; |
268 | ||
876c9d3a | 269 | return i; |
876c9d3a MT |
270 | } |
271 | ||
75bf45a7 | 272 | static void lbs_set_mcast_worker(struct work_struct *work) |
876c9d3a | 273 | { |
75bf45a7 DW |
274 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); |
275 | struct cmd_ds_mac_multicast_adr mcast_cmd; | |
276 | int dev_flags; | |
277 | int nr_addrs; | |
278 | int old_mac_control = priv->mac_control; | |
876c9d3a | 279 | |
9012b28a | 280 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 281 | |
75bf45a7 DW |
282 | dev_flags = priv->dev->flags; |
283 | if (priv->mesh_dev) | |
284 | dev_flags |= priv->mesh_dev->flags; | |
285 | ||
286 | if (dev_flags & IFF_PROMISC) { | |
287 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
288 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
289 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
290 | goto out_set_mac_control; | |
291 | } else if (dev_flags & IFF_ALLMULTI) { | |
292 | do_allmulti: | |
293 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
294 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
295 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
296 | goto out_set_mac_control; | |
876c9d3a MT |
297 | } |
298 | ||
75bf45a7 DW |
299 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
300 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
301 | if (nr_addrs >= 0 && priv->mesh_dev) | |
302 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
303 | if (nr_addrs < 0) | |
304 | goto do_allmulti; | |
305 | ||
306 | if (nr_addrs) { | |
307 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
308 | maclist[6*nr_addrs]); | |
309 | ||
310 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
311 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
312 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
313 | ||
314 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
315 | ||
316 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
317 | } else | |
318 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
319 | ||
320 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
321 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
322 | out_set_mac_control: | |
d9e9778c HS |
323 | if (priv->mac_control != old_mac_control) |
324 | lbs_set_mac_control(priv); | |
876c9d3a | 325 | |
9012b28a | 326 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
327 | } |
328 | ||
e0e42da3 | 329 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 330 | { |
ab65f649 | 331 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
332 | |
333 | schedule_work(&priv->mcast_work); | |
334 | } | |
335 | ||
876c9d3a | 336 | /** |
10078321 | 337 | * @brief This function handles the major jobs in the LBS driver. |
9012b28a HS |
338 | * It handles all events generated by firmware, RX data received |
339 | * from firmware and TX data sent from kernel. | |
876c9d3a | 340 | * |
10078321 | 341 | * @param data A pointer to lbs_thread structure |
876c9d3a MT |
342 | * @return 0 |
343 | */ | |
10078321 | 344 | static int lbs_thread(void *data) |
876c9d3a | 345 | { |
fe336150 | 346 | struct net_device *dev = data; |
ab65f649 | 347 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 348 | wait_queue_t wait; |
876c9d3a | 349 | |
9012b28a | 350 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 351 | |
876c9d3a MT |
352 | init_waitqueue_entry(&wait, current); |
353 | ||
354 | for (;;) { | |
b8d40bc9 | 355 | int shouldsleep; |
7919b89c | 356 | u8 resp_idx; |
b8d40bc9 | 357 | |
7919b89c HS |
358 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
359 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 360 | |
fe336150 | 361 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 362 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 363 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 364 | |
d9f88705 | 365 | if (kthread_should_stop()) |
b8d40bc9 | 366 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
367 | else if (priv->surpriseremoved) |
368 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
369 | else if (priv->psstate == PS_STATE_SLEEP) |
370 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
371 | else if (priv->cmd_timed_out) |
372 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
373 | else if (!priv->fw_ready) |
374 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
375 | else if (priv->dnld_sent) |
376 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
377 | else if (priv->tx_pending_len > 0) |
378 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
379 | else if (priv->resp_len[priv->resp_idx]) |
380 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
381 | else if (priv->cur_cmd) |
382 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
383 | else if (!list_empty(&priv->cmdpendingq) && |
384 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 385 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 386 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 387 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
388 | else |
389 | shouldsleep = 1; /* No command */ | |
390 | ||
391 | if (shouldsleep) { | |
7919b89c | 392 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 393 | "psmode %d, psstate %d\n", |
7919b89c HS |
394 | priv->connect_status, |
395 | priv->psmode, priv->psstate); | |
aa21c004 | 396 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
397 | schedule(); |
398 | } else | |
aa21c004 | 399 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 400 | |
7919b89c HS |
401 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
402 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
403 | |
404 | set_current_state(TASK_RUNNING); | |
fe336150 | 405 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 406 | |
7919b89c HS |
407 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
408 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 409 | |
d9f88705 | 410 | if (kthread_should_stop()) { |
7919b89c | 411 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
412 | break; |
413 | } | |
414 | ||
d9f88705 DW |
415 | if (priv->surpriseremoved) { |
416 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
417 | continue; | |
418 | } | |
876c9d3a | 419 | |
7919b89c HS |
420 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
421 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 422 | |
7919b89c | 423 | /* Process any pending command response */ |
a01f5450 | 424 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
425 | resp_idx = priv->resp_idx; |
426 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 427 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
428 | lbs_process_command_response(priv, |
429 | priv->resp_buf[resp_idx], | |
430 | priv->resp_len[resp_idx]); | |
aa21c004 | 431 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 432 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 433 | } |
7919b89c | 434 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 435 | |
49125454 AK |
436 | /* Process hardware events, e.g. card removed, link lost */ |
437 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 438 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 439 | u32 event; |
7acd72eb | 440 | |
9842c38e SS |
441 | if (kfifo_out(&priv->event_fifo, |
442 | (unsigned char *) &event, sizeof(event)) != | |
443 | sizeof(event)) | |
444 | break; | |
49125454 AK |
445 | spin_unlock_irq(&priv->driver_lock); |
446 | lbs_process_event(priv, event); | |
447 | spin_lock_irq(&priv->driver_lock); | |
448 | } | |
449 | spin_unlock_irq(&priv->driver_lock); | |
450 | ||
451 | if (priv->wakeup_dev_required) { | |
452 | lbs_deb_thread("Waking up device...\n"); | |
453 | /* Wake up device */ | |
454 | if (priv->exit_deep_sleep(priv)) | |
455 | lbs_deb_thread("Wakeup device failed\n"); | |
456 | continue; | |
457 | } | |
458 | ||
7919b89c | 459 | /* command timeout stuff */ |
2a345099 DW |
460 | if (priv->cmd_timed_out && priv->cur_cmd) { |
461 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
462 | ||
40e6fa82 HS |
463 | lbs_pr_info("Timeout submitting command 0x%04x\n", |
464 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
465 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); | |
466 | if (priv->reset_card) | |
467 | priv->reset_card(priv); | |
2a345099 DW |
468 | } |
469 | priv->cmd_timed_out = 0; | |
470 | ||
b15152a4 DW |
471 | if (!priv->fw_ready) |
472 | continue; | |
473 | ||
876c9d3a | 474 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
475 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
476 | !priv->dnld_sent && !priv->cur_cmd) { | |
477 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
478 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
479 | "dnld_sent %d, cur_cmd %p\n", | |
480 | priv->currenttxskb, priv->dnld_sent, | |
481 | priv->cur_cmd); | |
59f3e4bf | 482 | |
d4ff0ef6 | 483 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
484 | } else { |
485 | /* workaround for firmware sending | |
486 | * deauth/linkloss event immediately | |
487 | * after sleep request; remove this | |
488 | * after firmware fixes it | |
489 | */ | |
aa21c004 | 490 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
491 | lbs_pr_alert("ignore PS_SleepConfirm in " |
492 | "non-connected state\n"); | |
876c9d3a MT |
493 | } |
494 | } | |
495 | ||
496 | /* The PS state is changed during processing of Sleep Request | |
497 | * event above | |
498 | */ | |
aa21c004 DW |
499 | if ((priv->psstate == PS_STATE_SLEEP) || |
500 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
501 | continue; |
502 | ||
49125454 AK |
503 | if (priv->is_deep_sleep) |
504 | continue; | |
505 | ||
876c9d3a | 506 | /* Execute the next command */ |
aa21c004 | 507 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 508 | lbs_execute_next_command(priv); |
876c9d3a MT |
509 | |
510 | /* Wake-up command waiters which can't sleep in | |
10078321 | 511 | * lbs_prepare_and_send_command |
876c9d3a | 512 | */ |
aa21c004 DW |
513 | if (!list_empty(&priv->cmdpendingq)) |
514 | wake_up_all(&priv->cmd_pending); | |
2eb188a1 DW |
515 | |
516 | spin_lock_irq(&priv->driver_lock); | |
517 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
518 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
519 | priv->tx_pending_buf, | |
520 | priv->tx_pending_len); | |
521 | if (ret) { | |
522 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
523 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
524 | } | |
525 | priv->tx_pending_len = 0; | |
526 | if (!priv->currenttxskb) { | |
527 | /* We can wake the queues immediately if we aren't | |
528 | waiting for TX feedback */ | |
529 | if (priv->connect_status == LBS_CONNECTED) | |
530 | netif_wake_queue(priv->dev); | |
531 | if (priv->mesh_dev && | |
602114ae | 532 | lbs_mesh_connected(priv)) |
2eb188a1 DW |
533 | netif_wake_queue(priv->mesh_dev); |
534 | } | |
535 | } | |
536 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
537 | } |
538 | ||
aa21c004 | 539 | del_timer(&priv->command_timer); |
49125454 | 540 | del_timer(&priv->auto_deepsleep_timer); |
aa21c004 | 541 | wake_up_all(&priv->cmd_pending); |
876c9d3a | 542 | |
9012b28a | 543 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
544 | return 0; |
545 | } | |
546 | ||
ab25ecae DW |
547 | int lbs_suspend(struct lbs_private *priv) |
548 | { | |
ab25ecae DW |
549 | int ret; |
550 | ||
61d30020 HS |
551 | lbs_deb_enter(LBS_DEB_FW); |
552 | ||
66fceb69 AK |
553 | if (priv->is_deep_sleep) { |
554 | ret = lbs_set_deep_sleep(priv, 0); | |
555 | if (ret) { | |
556 | lbs_pr_err("deep sleep cancellation failed: %d\n", ret); | |
557 | return ret; | |
558 | } | |
559 | priv->deep_sleep_required = 1; | |
506e9025 DW |
560 | } |
561 | ||
1311843c | 562 | ret = lbs_set_host_sleep(priv, 1); |
7e226272 | 563 | |
66fceb69 AK |
564 | netif_device_detach(priv->dev); |
565 | if (priv->mesh_dev) | |
566 | netif_device_detach(priv->mesh_dev); | |
ab25ecae | 567 | |
61d30020 | 568 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
569 | return ret; |
570 | } | |
571 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
572 | ||
66fceb69 | 573 | int lbs_resume(struct lbs_private *priv) |
ab25ecae | 574 | { |
66fceb69 | 575 | int ret; |
61d30020 | 576 | |
66fceb69 | 577 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae | 578 | |
1311843c | 579 | ret = lbs_set_host_sleep(priv, 0); |
ab25ecae DW |
580 | |
581 | netif_device_attach(priv->dev); | |
582 | if (priv->mesh_dev) | |
583 | netif_device_attach(priv->mesh_dev); | |
584 | ||
66fceb69 AK |
585 | if (priv->deep_sleep_required) { |
586 | priv->deep_sleep_required = 0; | |
587 | ret = lbs_set_deep_sleep(priv, 1); | |
588 | if (ret) | |
589 | lbs_pr_err("deep sleep activation failed: %d\n", ret); | |
590 | } | |
591 | ||
592 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
593 | return ret; | |
ab25ecae DW |
594 | } |
595 | EXPORT_SYMBOL_GPL(lbs_resume); | |
596 | ||
1df4e8fe | 597 | /** |
b4836599 CM |
598 | * @brief This function gets the HW spec from the firmware and sets |
599 | * some basic parameters. | |
1df4e8fe | 600 | * |
69f9032d | 601 | * @param priv A pointer to struct lbs_private structure |
1df4e8fe HS |
602 | * @return 0 or -1 |
603 | */ | |
69f9032d | 604 | static int lbs_setup_firmware(struct lbs_private *priv) |
1df4e8fe HS |
605 | { |
606 | int ret = -1; | |
87c8c72d | 607 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; |
1df4e8fe HS |
608 | |
609 | lbs_deb_enter(LBS_DEB_FW); | |
610 | ||
87c8c72d | 611 | /* Read MAC address from firmware */ |
aa21c004 | 612 | memset(priv->current_addr, 0xff, ETH_ALEN); |
6e66f03f | 613 | ret = lbs_update_hw_spec(priv); |
ef85ad54 | 614 | if (ret) |
1df4e8fe | 615 | goto done; |
1df4e8fe | 616 | |
87c8c72d DW |
617 | /* Read power levels if available */ |
618 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
619 | if (ret == 0) { | |
620 | priv->txpower_cur = curlevel; | |
621 | priv->txpower_min = minlevel; | |
622 | priv->txpower_max = maxlevel; | |
623 | } | |
624 | ||
1047d5ed KD |
625 | /* Send cmd to FW to enable 11D function */ |
626 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1); | |
627 | ||
d9e9778c | 628 | lbs_set_mac_control(priv); |
1df4e8fe HS |
629 | done: |
630 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
631 | return ret; | |
632 | } | |
633 | ||
1df4e8fe HS |
634 | /** |
635 | * This function handles the timeout of command sending. | |
636 | * It will re-send the same command again. | |
637 | */ | |
40e6fa82 | 638 | static void lbs_cmd_timeout_handler(unsigned long data) |
1df4e8fe | 639 | { |
69f9032d | 640 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
641 | unsigned long flags; |
642 | ||
61d30020 | 643 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 644 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 645 | |
57962f0b | 646 | if (!priv->cur_cmd) |
2a345099 | 647 | goto out; |
1df4e8fe | 648 | |
57962f0b HS |
649 | lbs_pr_info("command 0x%04x timed out\n", |
650 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 651 | |
2a345099 | 652 | priv->cmd_timed_out = 1; |
1df4e8fe | 653 | wake_up_interruptible(&priv->waitq); |
61d30020 | 654 | out: |
2a345099 | 655 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 656 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
657 | } |
658 | ||
49125454 AK |
659 | /** |
660 | * This function put the device back to deep sleep mode when timer expires | |
661 | * and no activity (command, event, data etc.) is detected. | |
662 | */ | |
663 | static void auto_deepsleep_timer_fn(unsigned long data) | |
664 | { | |
665 | struct lbs_private *priv = (struct lbs_private *)data; | |
666 | int ret; | |
667 | ||
668 | lbs_deb_enter(LBS_DEB_CMD); | |
669 | ||
670 | if (priv->is_activity_detected) { | |
671 | priv->is_activity_detected = 0; | |
672 | } else { | |
673 | if (priv->is_auto_deep_sleep_enabled && | |
674 | (!priv->wakeup_dev_required) && | |
675 | (priv->connect_status != LBS_CONNECTED)) { | |
676 | lbs_deb_main("Entering auto deep sleep mode...\n"); | |
677 | ret = lbs_prepare_and_send_command(priv, | |
678 | CMD_802_11_DEEP_SLEEP, 0, | |
679 | 0, 0, NULL); | |
c0bbd576 AK |
680 | if (ret) |
681 | lbs_pr_err("Enter Deep Sleep command failed\n"); | |
49125454 AK |
682 | } |
683 | } | |
684 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
685 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
686 | lbs_deb_leave(LBS_DEB_CMD); | |
687 | } | |
688 | ||
689 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
690 | { | |
691 | lbs_deb_enter(LBS_DEB_SDIO); | |
692 | ||
693 | priv->is_auto_deep_sleep_enabled = 1; | |
694 | if (priv->is_deep_sleep) | |
695 | priv->wakeup_dev_required = 1; | |
696 | mod_timer(&priv->auto_deepsleep_timer , | |
697 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
698 | ||
699 | lbs_deb_leave(LBS_DEB_SDIO); | |
700 | return 0; | |
701 | } | |
702 | ||
703 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
704 | { | |
705 | lbs_deb_enter(LBS_DEB_SDIO); | |
706 | ||
707 | priv->is_auto_deep_sleep_enabled = 0; | |
708 | priv->auto_deep_sleep_timeout = 0; | |
709 | del_timer(&priv->auto_deepsleep_timer); | |
710 | ||
711 | lbs_deb_leave(LBS_DEB_SDIO); | |
712 | return 0; | |
713 | } | |
714 | ||
69f9032d | 715 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 716 | { |
e86dc1ca | 717 | int ret; |
1df4e8fe | 718 | |
61d30020 HS |
719 | lbs_deb_enter(LBS_DEB_MAIN); |
720 | ||
aa21c004 | 721 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 722 | |
aa21c004 | 723 | priv->connect_status = LBS_DISCONNECTED; |
c14951fe | 724 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 725 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 726 | priv->radio_on = 1; |
aa21c004 DW |
727 | priv->psmode = LBS802_11POWERMODECAM; |
728 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
729 | priv->is_deep_sleep = 0; |
730 | priv->is_auto_deep_sleep_enabled = 0; | |
66fceb69 | 731 | priv->deep_sleep_required = 0; |
49125454 AK |
732 | priv->wakeup_dev_required = 0; |
733 | init_waitqueue_head(&priv->ds_awake_q); | |
921ca03c | 734 | priv->authtype_auto = 1; |
66fceb69 AK |
735 | priv->is_host_sleep_configured = 0; |
736 | priv->is_host_sleep_activated = 0; | |
737 | init_waitqueue_head(&priv->host_sleep_q); | |
aa21c004 | 738 | mutex_init(&priv->lock); |
1df4e8fe | 739 | |
40e6fa82 | 740 | setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, |
61d30020 | 741 | (unsigned long)priv); |
49125454 AK |
742 | setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, |
743 | (unsigned long)priv); | |
1df4e8fe | 744 | |
aa21c004 DW |
745 | INIT_LIST_HEAD(&priv->cmdfreeq); |
746 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
1df4e8fe | 747 | |
aa21c004 DW |
748 | spin_lock_init(&priv->driver_lock); |
749 | init_waitqueue_head(&priv->cmd_pending); | |
1df4e8fe | 750 | |
954ee164 | 751 | /* Allocate the command buffers */ |
10078321 | 752 | if (lbs_allocate_cmd_buffer(priv)) { |
954ee164 | 753 | lbs_pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
754 | ret = -ENOMEM; |
755 | goto out; | |
756 | } | |
757 | priv->resp_idx = 0; | |
758 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
759 | ||
760 | /* Create the event FIFO */ | |
c1e13f25 | 761 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 762 | if (ret) { |
7919b89c | 763 | lbs_pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 764 | goto out; |
954ee164 | 765 | } |
1df4e8fe | 766 | |
954ee164 | 767 | out: |
61d30020 HS |
768 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
769 | ||
954ee164 DW |
770 | return ret; |
771 | } | |
1df4e8fe | 772 | |
69f9032d | 773 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 774 | { |
61d30020 | 775 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 776 | |
61d30020 | 777 | lbs_free_cmd_buffer(priv); |
45465487 | 778 | kfifo_free(&priv->event_fifo); |
aa21c004 | 779 | del_timer(&priv->command_timer); |
49125454 | 780 | del_timer(&priv->auto_deepsleep_timer); |
61d30020 HS |
781 | |
782 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
783 | } |
784 | ||
f02abf10 SH |
785 | static const struct net_device_ops lbs_netdev_ops = { |
786 | .ndo_open = lbs_dev_open, | |
787 | .ndo_stop = lbs_eth_stop, | |
788 | .ndo_start_xmit = lbs_hard_start_xmit, | |
789 | .ndo_set_mac_address = lbs_set_mac_address, | |
790 | .ndo_tx_timeout = lbs_tx_timeout, | |
791 | .ndo_set_multicast_list = lbs_set_multicast_list, | |
792 | .ndo_change_mtu = eth_change_mtu, | |
793 | .ndo_validate_addr = eth_validate_addr, | |
794 | }; | |
795 | ||
876c9d3a MT |
796 | /** |
797 | * @brief This function adds the card. it will probe the | |
10078321 | 798 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a MT |
799 | * |
800 | * @param card A pointer to card | |
69f9032d | 801 | * @return A pointer to struct lbs_private structure |
876c9d3a | 802 | */ |
69f9032d | 803 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 804 | { |
ff9fc791 HS |
805 | struct net_device *dev; |
806 | struct wireless_dev *wdev; | |
69f9032d | 807 | struct lbs_private *priv = NULL; |
876c9d3a | 808 | |
61d30020 | 809 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
810 | |
811 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
812 | wdev = lbs_cfg_alloc(dmdev); |
813 | if (IS_ERR(wdev)) { | |
814 | lbs_pr_err("cfg80211 init failed\n"); | |
954ee164 | 815 | goto done; |
876c9d3a | 816 | } |
e86dc1ca | 817 | |
ff9fc791 HS |
818 | wdev->iftype = NL80211_IFTYPE_STATION; |
819 | priv = wdev_priv(wdev); | |
820 | priv->wdev = wdev; | |
876c9d3a | 821 | |
10078321 | 822 | if (lbs_init_adapter(priv)) { |
954ee164 | 823 | lbs_pr_err("failed to initialize adapter structure.\n"); |
ff9fc791 HS |
824 | goto err_wdev; |
825 | } | |
826 | ||
ff9fc791 HS |
827 | dev = alloc_netdev(0, "wlan%d", ether_setup); |
828 | if (!dev) { | |
829 | dev_err(dmdev, "no memory for network device instance\n"); | |
830 | goto err_adapter; | |
954ee164 DW |
831 | } |
832 | ||
ff9fc791 HS |
833 | dev->ieee80211_ptr = wdev; |
834 | dev->ml_priv = priv; | |
835 | SET_NETDEV_DEV(dev, dmdev); | |
836 | wdev->netdev = dev; | |
634b8f49 | 837 | priv->dev = dev; |
876c9d3a | 838 | |
f02abf10 | 839 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 840 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 841 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 842 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 843 | |
ff9fc791 | 844 | priv->card = card; |
7732ca45 | 845 | |
c00552c6 | 846 | strcpy(dev->name, "wlan%d"); |
954ee164 DW |
847 | |
848 | lbs_deb_thread("Starting main thread...\n"); | |
849 | init_waitqueue_head(&priv->waitq); | |
10078321 | 850 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
954ee164 DW |
851 | if (IS_ERR(priv->main_thread)) { |
852 | lbs_deb_thread("Error creating main thread.\n"); | |
ff9fc791 | 853 | goto err_ndev; |
954ee164 DW |
854 | } |
855 | ||
10078321 | 856 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
75bf45a7 | 857 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
23a397ac | 858 | |
506e9025 DW |
859 | priv->wol_criteria = 0xffffffff; |
860 | priv->wol_gpio = 0xff; | |
66fceb69 | 861 | priv->wol_gap = 20; |
506e9025 | 862 | |
32a74b7c HS |
863 | goto done; |
864 | ||
ff9fc791 | 865 | err_ndev: |
32a74b7c | 866 | free_netdev(dev); |
ff9fc791 HS |
867 | |
868 | err_adapter: | |
869 | lbs_free_adapter(priv); | |
870 | ||
871 | err_wdev: | |
872 | lbs_cfg_free(priv); | |
873 | ||
6a812157 | 874 | priv = NULL; |
954ee164 | 875 | |
32a74b7c | 876 | done: |
61d30020 | 877 | lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); |
32a74b7c HS |
878 | return priv; |
879 | } | |
10078321 | 880 | EXPORT_SYMBOL_GPL(lbs_add_card); |
32a74b7c | 881 | |
954ee164 | 882 | |
a63e5cb2 | 883 | void lbs_remove_card(struct lbs_private *priv) |
32a74b7c | 884 | { |
634b8f49 | 885 | struct net_device *dev = priv->dev; |
32a74b7c HS |
886 | |
887 | lbs_deb_enter(LBS_DEB_MAIN); | |
876c9d3a | 888 | |
23a397ac | 889 | lbs_remove_mesh(priv); |
e86dc1ca | 890 | lbs_scan_deinit(priv); |
876c9d3a | 891 | |
954ee164 | 892 | dev = priv->dev; |
2afc0c5d | 893 | |
75bf45a7 | 894 | cancel_work_sync(&priv->mcast_work); |
71b35f3a DW |
895 | |
896 | /* worker thread destruction blocks on the in-flight command which | |
897 | * should have been cleared already in lbs_stop_card(). | |
898 | */ | |
899 | lbs_deb_main("destroying worker thread\n"); | |
954ee164 | 900 | destroy_workqueue(priv->work_thread); |
71b35f3a | 901 | lbs_deb_main("done destroying worker thread\n"); |
876c9d3a | 902 | |
aa21c004 DW |
903 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
904 | priv->psmode = LBS802_11POWERMODECAM; | |
10078321 | 905 | lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); |
876c9d3a MT |
906 | } |
907 | ||
49125454 AK |
908 | if (priv->is_deep_sleep) { |
909 | priv->is_deep_sleep = 0; | |
910 | wake_up_interruptible(&priv->ds_awake_q); | |
911 | } | |
912 | ||
66fceb69 AK |
913 | priv->is_host_sleep_configured = 0; |
914 | priv->is_host_sleep_activated = 0; | |
915 | wake_up_interruptible(&priv->host_sleep_q); | |
916 | ||
954ee164 | 917 | /* Stop the thread servicing the interrupts */ |
aa21c004 | 918 | priv->surpriseremoved = 1; |
954ee164 DW |
919 | kthread_stop(priv->main_thread); |
920 | ||
10078321 | 921 | lbs_free_adapter(priv); |
ff9fc791 | 922 | lbs_cfg_free(priv); |
954ee164 DW |
923 | |
924 | priv->dev = NULL; | |
925 | free_netdev(dev); | |
926 | ||
927 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 928 | } |
10078321 | 929 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
930 | |
931 | ||
e86dc1ca | 932 | int lbs_rtap_supported(struct lbs_private *priv) |
cd74468b HS |
933 | { |
934 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) | |
935 | return 1; | |
936 | ||
937 | /* newer firmware use a capability mask */ | |
938 | return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && | |
939 | (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); | |
940 | } | |
941 | ||
942 | ||
69f9032d | 943 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
944 | { |
945 | struct net_device *dev = priv->dev; | |
946 | int ret = -1; | |
947 | ||
948 | lbs_deb_enter(LBS_DEB_MAIN); | |
949 | ||
950 | /* poke the firmware */ | |
10078321 | 951 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
952 | if (ret) |
953 | goto done; | |
954 | ||
ff9fc791 HS |
955 | if (lbs_cfg_register(priv)) { |
956 | lbs_pr_err("cannot register device\n"); | |
954ee164 | 957 | goto done; |
876c9d3a | 958 | } |
020f3d00 | 959 | |
020f3d00 | 960 | lbs_update_channel(priv); |
020f3d00 | 961 | |
cd74468b HS |
962 | lbs_init_mesh(priv); |
963 | ||
10078321 | 964 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 965 | |
954ee164 DW |
966 | lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name); |
967 | ||
32a74b7c | 968 | ret = 0; |
876c9d3a | 969 | |
32a74b7c | 970 | done: |
954ee164 DW |
971 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
972 | return ret; | |
973 | } | |
10078321 | 974 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
975 | |
976 | ||
a63e5cb2 | 977 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 978 | { |
43baa5bb | 979 | struct net_device *dev; |
954ee164 DW |
980 | struct cmd_ctrl_node *cmdnode; |
981 | unsigned long flags; | |
982 | ||
983 | lbs_deb_enter(LBS_DEB_MAIN); | |
984 | ||
652e3f20 HS |
985 | if (!priv) |
986 | goto out; | |
43baa5bb | 987 | dev = priv->dev; |
652e3f20 | 988 | |
43baa5bb JL |
989 | netif_stop_queue(dev); |
990 | netif_carrier_off(dev); | |
954ee164 | 991 | |
10078321 | 992 | lbs_debugfs_remove_one(priv); |
cd74468b HS |
993 | lbs_deinit_mesh(priv); |
994 | ||
71b35f3a | 995 | /* Delete the timeout of the currently processing command */ |
652e3f20 | 996 | del_timer_sync(&priv->command_timer); |
49125454 | 997 | del_timer_sync(&priv->auto_deepsleep_timer); |
71b35f3a DW |
998 | |
999 | /* Flush pending command nodes */ | |
aa21c004 | 1000 | spin_lock_irqsave(&priv->driver_lock, flags); |
71b35f3a | 1001 | lbs_deb_main("clearing pending commands\n"); |
aa21c004 | 1002 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { |
ae125bf8 | 1003 | cmdnode->result = -ENOENT; |
954ee164 DW |
1004 | cmdnode->cmdwaitqwoken = 1; |
1005 | wake_up_interruptible(&cmdnode->cmdwait_q); | |
1006 | } | |
71b35f3a DW |
1007 | |
1008 | /* Flush the command the card is currently processing */ | |
1009 | if (priv->cur_cmd) { | |
1010 | lbs_deb_main("clearing current command\n"); | |
1011 | priv->cur_cmd->result = -ENOENT; | |
1012 | priv->cur_cmd->cmdwaitqwoken = 1; | |
1013 | wake_up_interruptible(&priv->cur_cmd->cmdwait_q); | |
1014 | } | |
1015 | lbs_deb_main("done clearing commands\n"); | |
aa21c004 | 1016 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
954ee164 DW |
1017 | |
1018 | unregister_netdev(dev); | |
1019 | ||
652e3f20 | 1020 | out: |
a63e5cb2 | 1021 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1022 | } |
10078321 | 1023 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1024 | |
876c9d3a | 1025 | |
7919b89c HS |
1026 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1027 | { | |
1028 | unsigned long flags; | |
1029 | ||
1030 | lbs_deb_enter(LBS_DEB_THREAD); | |
1031 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1032 | ||
1033 | if (priv->psstate == PS_STATE_SLEEP) | |
1034 | priv->psstate = PS_STATE_AWAKE; | |
1035 | ||
7acd72eb | 1036 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c HS |
1037 | |
1038 | wake_up_interruptible(&priv->waitq); | |
1039 | ||
1040 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1041 | lbs_deb_leave(LBS_DEB_THREAD); | |
1042 | } | |
1043 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1044 | ||
1045 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1046 | { |
ed37b516 | 1047 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1048 | |
4f679496 | 1049 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1050 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1051 | |
1052 | /* Swap buffers by flipping the response index */ | |
1053 | BUG_ON(resp_idx > 1); | |
1054 | priv->resp_idx = resp_idx; | |
1055 | ||
fe336150 | 1056 | wake_up_interruptible(&priv->waitq); |
876c9d3a | 1057 | |
ed37b516 | 1058 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1059 | } |
7919b89c | 1060 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1061 | |
4fb910fd | 1062 | static int __init lbs_init_module(void) |
876c9d3a | 1063 | { |
9012b28a | 1064 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1065 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1066 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1067 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
1068 | confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED); | |
10078321 | 1069 | lbs_debugfs_init(); |
084708b6 HS |
1070 | lbs_deb_leave(LBS_DEB_MAIN); |
1071 | return 0; | |
876c9d3a MT |
1072 | } |
1073 | ||
4fb910fd | 1074 | static void __exit lbs_exit_module(void) |
876c9d3a | 1075 | { |
9012b28a | 1076 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1077 | lbs_debugfs_remove(); |
9012b28a | 1078 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1079 | } |
1080 | ||
10078321 HS |
1081 | module_init(lbs_init_module); |
1082 | module_exit(lbs_exit_module); | |
876c9d3a | 1083 | |
084708b6 | 1084 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1085 | MODULE_AUTHOR("Marvell International Ltd."); |
1086 | MODULE_LICENSE("GPL"); |