Commit | Line | Data |
---|---|---|
8973a6e7 RD |
1 | /* |
2 | * This file contains the major functions in WLAN | |
3 | * driver. It includes init, exit, open, close and main | |
4 | * thread etc.. | |
5 | */ | |
876c9d3a | 6 | |
0e4e06ae JP |
7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
8 | ||
a46c6410 | 9 | #include <linux/moduleparam.h> |
876c9d3a | 10 | #include <linux/delay.h> |
876c9d3a | 11 | #include <linux/etherdevice.h> |
a6b7a407 | 12 | #include <linux/hardirq.h> |
876c9d3a MT |
13 | #include <linux/netdevice.h> |
14 | #include <linux/if_arp.h> | |
fe336150 | 15 | #include <linux/kthread.h> |
7919b89c | 16 | #include <linux/kfifo.h> |
5a0e3ad6 | 17 | #include <linux/slab.h> |
ff9fc791 | 18 | #include <net/cfg80211.h> |
876c9d3a MT |
19 | |
20 | #include "host.h" | |
876c9d3a MT |
21 | #include "decl.h" |
22 | #include "dev.h" | |
ff9fc791 | 23 | #include "cfg.h" |
876c9d3a | 24 | #include "debugfs.h" |
6e66f03f | 25 | #include "cmd.h" |
876c9d3a | 26 | |
7856a541 | 27 | #define DRIVER_RELEASE_VERSION "323.p0" |
10078321 | 28 | const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION |
3ce40232 DW |
29 | #ifdef DEBUG |
30 | "-dbg" | |
31 | #endif | |
32 | ""; | |
33 | ||
a46c6410 HS |
34 | |
35 | /* Module parameters */ | |
10078321 HS |
36 | unsigned int lbs_debug; |
37 | EXPORT_SYMBOL_GPL(lbs_debug); | |
38 | module_param_named(libertas_debug, lbs_debug, int, 0644); | |
a46c6410 | 39 | |
6bdbdbf4 SS |
40 | unsigned int lbs_disablemesh; |
41 | EXPORT_SYMBOL_GPL(lbs_disablemesh); | |
42 | module_param_named(libertas_disablemesh, lbs_disablemesh, int, 0644); | |
43 | ||
a46c6410 | 44 | |
8973a6e7 RD |
45 | /* |
46 | * This global structure is used to send the confirm_sleep command as | |
47 | * fast as possible down to the firmware. | |
48 | */ | |
f539f2ef HS |
49 | struct cmd_confirm_sleep confirm_sleep; |
50 | ||
51 | ||
8973a6e7 | 52 | /* |
8c512765 | 53 | * the table to keep region code |
876c9d3a | 54 | */ |
10078321 | 55 | u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
8c512765 | 56 | { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; |
876c9d3a | 57 | |
8973a6e7 | 58 | /* |
8c512765 DW |
59 | * FW rate table. FW refers to rates by their index in this table, not by the |
60 | * rate value itself. Values of 0x00 are | |
61 | * reserved positions. | |
876c9d3a | 62 | */ |
8c512765 DW |
63 | static u8 fw_data_rates[MAX_RATES] = |
64 | { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, | |
65 | 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 | |
66 | }; | |
876c9d3a | 67 | |
876c9d3a | 68 | /** |
8973a6e7 | 69 | * lbs_fw_index_to_data_rate - use index to get the data rate |
8c512765 | 70 | * |
8973a6e7 RD |
71 | * @idx: The index of data rate |
72 | * returns: data rate or 0 | |
876c9d3a | 73 | */ |
10078321 | 74 | u32 lbs_fw_index_to_data_rate(u8 idx) |
8c512765 DW |
75 | { |
76 | if (idx >= sizeof(fw_data_rates)) | |
77 | idx = 0; | |
78 | return fw_data_rates[idx]; | |
79 | } | |
80 | ||
81 | /** | |
8973a6e7 | 82 | * lbs_data_rate_to_fw_index - use rate to get the index |
8c512765 | 83 | * |
8973a6e7 RD |
84 | * @rate: data rate |
85 | * returns: index or 0 | |
8c512765 | 86 | */ |
10078321 | 87 | u8 lbs_data_rate_to_fw_index(u32 rate) |
8c512765 DW |
88 | { |
89 | u8 i; | |
90 | ||
91 | if (!rate) | |
92 | return 0; | |
93 | ||
94 | for (i = 0; i < sizeof(fw_data_rates); i++) { | |
95 | if (rate == fw_data_rates[i]) | |
96 | return i; | |
97 | } | |
98 | return 0; | |
99 | } | |
876c9d3a | 100 | |
6fb53252 | 101 | |
23a397ac | 102 | /** |
8973a6e7 | 103 | * lbs_dev_open - open the ethX interface |
876c9d3a | 104 | * |
8973a6e7 RD |
105 | * @dev: A pointer to &net_device structure |
106 | * returns: 0 or -EBUSY if monitor mode active | |
876c9d3a | 107 | */ |
10078321 | 108 | static int lbs_dev_open(struct net_device *dev) |
876c9d3a | 109 | { |
ab65f649 | 110 | struct lbs_private *priv = dev->ml_priv; |
8552855f | 111 | int ret = 0; |
876c9d3a | 112 | |
61d30020 HS |
113 | lbs_deb_enter(LBS_DEB_NET); |
114 | ||
8552855f | 115 | spin_lock_irq(&priv->driver_lock); |
2e30168b | 116 | priv->stopping = false; |
876c9d3a | 117 | |
e0e42da3 HS |
118 | if (priv->connect_status == LBS_CONNECTED) |
119 | netif_carrier_on(dev); | |
120 | else | |
121 | netif_carrier_off(dev); | |
876c9d3a | 122 | |
8552855f DW |
123 | if (!priv->tx_pending_len) |
124 | netif_wake_queue(dev); | |
876c9d3a | 125 | |
8552855f | 126 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 127 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
8552855f | 128 | return ret; |
876c9d3a MT |
129 | } |
130 | ||
876c9d3a | 131 | /** |
8973a6e7 | 132 | * lbs_eth_stop - close the ethX interface |
876c9d3a | 133 | * |
8973a6e7 RD |
134 | * @dev: A pointer to &net_device structure |
135 | * returns: 0 | |
876c9d3a | 136 | */ |
8552855f | 137 | static int lbs_eth_stop(struct net_device *dev) |
78523daa | 138 | { |
ab65f649 | 139 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 140 | |
61d30020 | 141 | lbs_deb_enter(LBS_DEB_NET); |
8552855f | 142 | |
61d30020 | 143 | spin_lock_irq(&priv->driver_lock); |
2e30168b | 144 | priv->stopping = true; |
8552855f | 145 | netif_stop_queue(dev); |
8552855f | 146 | spin_unlock_irq(&priv->driver_lock); |
61d30020 | 147 | |
75bf45a7 | 148 | schedule_work(&priv->mcast_work); |
2e30168b DD |
149 | cancel_delayed_work_sync(&priv->scan_work); |
150 | if (priv->scan_req) { | |
151 | cfg80211_scan_done(priv->scan_req, false); | |
152 | priv->scan_req = NULL; | |
153 | } | |
75bf45a7 | 154 | |
61d30020 | 155 | lbs_deb_leave(LBS_DEB_NET); |
8552855f | 156 | return 0; |
876c9d3a MT |
157 | } |
158 | ||
e775ed7c DW |
159 | void lbs_host_to_card_done(struct lbs_private *priv) |
160 | { | |
a63b22bb DW |
161 | unsigned long flags; |
162 | ||
61d30020 HS |
163 | lbs_deb_enter(LBS_DEB_THREAD); |
164 | ||
a63b22bb | 165 | spin_lock_irqsave(&priv->driver_lock, flags); |
e775ed7c DW |
166 | |
167 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
168 | ||
169 | /* Wake main thread if commands are pending */ | |
49125454 AK |
170 | if (!priv->cur_cmd || priv->tx_pending_len > 0) { |
171 | if (!priv->wakeup_dev_required) | |
172 | wake_up_interruptible(&priv->waitq); | |
173 | } | |
e775ed7c | 174 | |
a63b22bb | 175 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 176 | lbs_deb_leave(LBS_DEB_THREAD); |
e775ed7c DW |
177 | } |
178 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); | |
179 | ||
e0e42da3 | 180 | int lbs_set_mac_address(struct net_device *dev, void *addr) |
876c9d3a MT |
181 | { |
182 | int ret = 0; | |
ab65f649 | 183 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 184 | struct sockaddr *phwaddr = addr; |
2af9f039 | 185 | struct cmd_ds_802_11_mac_address cmd; |
876c9d3a | 186 | |
9012b28a | 187 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 188 | |
0a0d08ac | 189 | /* In case it was called from the mesh device */ |
2af9f039 | 190 | dev = priv->dev; |
0a0d08ac | 191 | |
2af9f039 HS |
192 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
193 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
194 | memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN); | |
876c9d3a | 195 | |
2af9f039 | 196 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); |
876c9d3a | 197 | if (ret) { |
9012b28a | 198 | lbs_deb_net("set MAC address failed\n"); |
876c9d3a MT |
199 | goto done; |
200 | } | |
201 | ||
2af9f039 HS |
202 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
203 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); | |
78523daa | 204 | if (priv->mesh_dev) |
2af9f039 | 205 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
876c9d3a MT |
206 | |
207 | done: | |
9012b28a | 208 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
876c9d3a MT |
209 | return ret; |
210 | } | |
211 | ||
75bf45a7 DW |
212 | |
213 | static inline int mac_in_list(unsigned char *list, int list_len, | |
214 | unsigned char *mac) | |
876c9d3a | 215 | { |
75bf45a7 DW |
216 | while (list_len) { |
217 | if (!memcmp(list, mac, ETH_ALEN)) | |
218 | return 1; | |
219 | list += ETH_ALEN; | |
220 | list_len--; | |
221 | } | |
222 | return 0; | |
223 | } | |
224 | ||
876c9d3a | 225 | |
75bf45a7 DW |
226 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
227 | struct net_device *dev, int nr_addrs) | |
228 | { | |
229 | int i = nr_addrs; | |
22bedad3 | 230 | struct netdev_hw_addr *ha; |
655ffee2 | 231 | int cnt; |
75bf45a7 DW |
232 | |
233 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) | |
234 | return nr_addrs; | |
235 | ||
b9e40857 | 236 | netif_addr_lock_bh(dev); |
655ffee2 | 237 | cnt = netdev_mc_count(dev); |
22bedad3 JP |
238 | netdev_for_each_mc_addr(ha, dev) { |
239 | if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { | |
e174961c | 240 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
22bedad3 | 241 | ha->addr); |
655ffee2 | 242 | cnt--; |
75bf45a7 DW |
243 | continue; |
244 | } | |
876c9d3a | 245 | |
75bf45a7 DW |
246 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
247 | break; | |
22bedad3 | 248 | memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); |
e174961c | 249 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
22bedad3 | 250 | ha->addr); |
75bf45a7 | 251 | i++; |
655ffee2 | 252 | cnt--; |
876c9d3a | 253 | } |
b9e40857 | 254 | netif_addr_unlock_bh(dev); |
655ffee2 | 255 | if (cnt) |
75bf45a7 DW |
256 | return -EOVERFLOW; |
257 | ||
876c9d3a | 258 | return i; |
876c9d3a MT |
259 | } |
260 | ||
75bf45a7 | 261 | static void lbs_set_mcast_worker(struct work_struct *work) |
876c9d3a | 262 | { |
75bf45a7 DW |
263 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); |
264 | struct cmd_ds_mac_multicast_adr mcast_cmd; | |
265 | int dev_flags; | |
266 | int nr_addrs; | |
267 | int old_mac_control = priv->mac_control; | |
876c9d3a | 268 | |
9012b28a | 269 | lbs_deb_enter(LBS_DEB_NET); |
876c9d3a | 270 | |
75bf45a7 DW |
271 | dev_flags = priv->dev->flags; |
272 | if (priv->mesh_dev) | |
273 | dev_flags |= priv->mesh_dev->flags; | |
274 | ||
275 | if (dev_flags & IFF_PROMISC) { | |
276 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
277 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | | |
278 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
279 | goto out_set_mac_control; | |
280 | } else if (dev_flags & IFF_ALLMULTI) { | |
281 | do_allmulti: | |
282 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
283 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
284 | CMD_ACT_MAC_MULTICAST_ENABLE); | |
285 | goto out_set_mac_control; | |
876c9d3a MT |
286 | } |
287 | ||
75bf45a7 DW |
288 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
289 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); | |
290 | if (nr_addrs >= 0 && priv->mesh_dev) | |
291 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); | |
292 | if (nr_addrs < 0) | |
293 | goto do_allmulti; | |
294 | ||
295 | if (nr_addrs) { | |
296 | int size = offsetof(struct cmd_ds_mac_multicast_adr, | |
297 | maclist[6*nr_addrs]); | |
298 | ||
299 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); | |
300 | mcast_cmd.hdr.size = cpu_to_le16(size); | |
301 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); | |
302 | ||
303 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); | |
304 | ||
305 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; | |
306 | } else | |
307 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
308 | ||
309 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | | |
310 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
311 | out_set_mac_control: | |
d9e9778c HS |
312 | if (priv->mac_control != old_mac_control) |
313 | lbs_set_mac_control(priv); | |
876c9d3a | 314 | |
9012b28a | 315 | lbs_deb_leave(LBS_DEB_NET); |
876c9d3a MT |
316 | } |
317 | ||
e0e42da3 | 318 | void lbs_set_multicast_list(struct net_device *dev) |
75bf45a7 | 319 | { |
ab65f649 | 320 | struct lbs_private *priv = dev->ml_priv; |
75bf45a7 DW |
321 | |
322 | schedule_work(&priv->mcast_work); | |
323 | } | |
324 | ||
876c9d3a | 325 | /** |
8973a6e7 | 326 | * lbs_thread - handles the major jobs in the LBS driver. |
9012b28a HS |
327 | * It handles all events generated by firmware, RX data received |
328 | * from firmware and TX data sent from kernel. | |
876c9d3a | 329 | * |
8973a6e7 RD |
330 | * @data: A pointer to &lbs_thread structure |
331 | * returns: 0 | |
876c9d3a | 332 | */ |
10078321 | 333 | static int lbs_thread(void *data) |
876c9d3a | 334 | { |
fe336150 | 335 | struct net_device *dev = data; |
ab65f649 | 336 | struct lbs_private *priv = dev->ml_priv; |
876c9d3a | 337 | wait_queue_t wait; |
876c9d3a | 338 | |
9012b28a | 339 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 340 | |
876c9d3a MT |
341 | init_waitqueue_entry(&wait, current); |
342 | ||
343 | for (;;) { | |
b8d40bc9 | 344 | int shouldsleep; |
7919b89c | 345 | u8 resp_idx; |
b8d40bc9 | 346 | |
7919b89c HS |
347 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
348 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 349 | |
fe336150 | 350 | add_wait_queue(&priv->waitq, &wait); |
876c9d3a | 351 | set_current_state(TASK_INTERRUPTIBLE); |
aa21c004 | 352 | spin_lock_irq(&priv->driver_lock); |
59f3e4bf | 353 | |
d9f88705 | 354 | if (kthread_should_stop()) |
b8d40bc9 | 355 | shouldsleep = 0; /* Bye */ |
d9f88705 DW |
356 | else if (priv->surpriseremoved) |
357 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ | |
b8d40bc9 DW |
358 | else if (priv->psstate == PS_STATE_SLEEP) |
359 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ | |
2a345099 DW |
360 | else if (priv->cmd_timed_out) |
361 | shouldsleep = 0; /* Command timed out. Recover */ | |
b15152a4 DW |
362 | else if (!priv->fw_ready) |
363 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ | |
b8d40bc9 DW |
364 | else if (priv->dnld_sent) |
365 | shouldsleep = 1; /* Something is en route to the device already */ | |
2eb188a1 DW |
366 | else if (priv->tx_pending_len > 0) |
367 | shouldsleep = 0; /* We've a packet to send */ | |
ef707b83 HS |
368 | else if (priv->resp_len[priv->resp_idx]) |
369 | shouldsleep = 0; /* We have a command response */ | |
b8d40bc9 DW |
370 | else if (priv->cur_cmd) |
371 | shouldsleep = 1; /* Can't send a command; one already running */ | |
49125454 AK |
372 | else if (!list_empty(&priv->cmdpendingq) && |
373 | !(priv->wakeup_dev_required)) | |
b8d40bc9 | 374 | shouldsleep = 0; /* We have a command to send */ |
e64c026d | 375 | else if (kfifo_len(&priv->event_fifo)) |
7919b89c | 376 | shouldsleep = 0; /* We have an event to process */ |
b8d40bc9 DW |
377 | else |
378 | shouldsleep = 1; /* No command */ | |
379 | ||
380 | if (shouldsleep) { | |
7919b89c | 381 | lbs_deb_thread("sleeping, connect_status %d, " |
5f505d90 | 382 | "psmode %d, psstate %d\n", |
7919b89c HS |
383 | priv->connect_status, |
384 | priv->psmode, priv->psstate); | |
aa21c004 | 385 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a MT |
386 | schedule(); |
387 | } else | |
aa21c004 | 388 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 389 | |
7919b89c HS |
390 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
391 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a MT |
392 | |
393 | set_current_state(TASK_RUNNING); | |
fe336150 | 394 | remove_wait_queue(&priv->waitq, &wait); |
876c9d3a | 395 | |
7919b89c HS |
396 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
397 | priv->currenttxskb, priv->dnld_sent); | |
876c9d3a | 398 | |
d9f88705 | 399 | if (kthread_should_stop()) { |
7919b89c | 400 | lbs_deb_thread("break from main thread\n"); |
876c9d3a MT |
401 | break; |
402 | } | |
403 | ||
d9f88705 DW |
404 | if (priv->surpriseremoved) { |
405 | lbs_deb_thread("adapter removed; waiting to die...\n"); | |
406 | continue; | |
407 | } | |
876c9d3a | 408 | |
7919b89c HS |
409 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
410 | priv->currenttxskb, priv->dnld_sent); | |
59f3e4bf | 411 | |
7919b89c | 412 | /* Process any pending command response */ |
a01f5450 | 413 | spin_lock_irq(&priv->driver_lock); |
7919b89c HS |
414 | resp_idx = priv->resp_idx; |
415 | if (priv->resp_len[resp_idx]) { | |
aa21c004 | 416 | spin_unlock_irq(&priv->driver_lock); |
7919b89c HS |
417 | lbs_process_command_response(priv, |
418 | priv->resp_buf[resp_idx], | |
419 | priv->resp_len[resp_idx]); | |
aa21c004 | 420 | spin_lock_irq(&priv->driver_lock); |
7919b89c | 421 | priv->resp_len[resp_idx] = 0; |
876c9d3a | 422 | } |
7919b89c | 423 | spin_unlock_irq(&priv->driver_lock); |
876c9d3a | 424 | |
49125454 AK |
425 | /* Process hardware events, e.g. card removed, link lost */ |
426 | spin_lock_irq(&priv->driver_lock); | |
e64c026d | 427 | while (kfifo_len(&priv->event_fifo)) { |
49125454 | 428 | u32 event; |
7acd72eb | 429 | |
9842c38e SS |
430 | if (kfifo_out(&priv->event_fifo, |
431 | (unsigned char *) &event, sizeof(event)) != | |
432 | sizeof(event)) | |
433 | break; | |
49125454 AK |
434 | spin_unlock_irq(&priv->driver_lock); |
435 | lbs_process_event(priv, event); | |
436 | spin_lock_irq(&priv->driver_lock); | |
437 | } | |
438 | spin_unlock_irq(&priv->driver_lock); | |
439 | ||
440 | if (priv->wakeup_dev_required) { | |
441 | lbs_deb_thread("Waking up device...\n"); | |
442 | /* Wake up device */ | |
443 | if (priv->exit_deep_sleep(priv)) | |
444 | lbs_deb_thread("Wakeup device failed\n"); | |
445 | continue; | |
446 | } | |
447 | ||
7919b89c | 448 | /* command timeout stuff */ |
2a345099 DW |
449 | if (priv->cmd_timed_out && priv->cur_cmd) { |
450 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
451 | ||
f3a57fd1 JP |
452 | netdev_info(dev, "Timeout submitting command 0x%04x\n", |
453 | le16_to_cpu(cmdnode->cmdbuf->command)); | |
40e6fa82 HS |
454 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); |
455 | if (priv->reset_card) | |
456 | priv->reset_card(priv); | |
2a345099 DW |
457 | } |
458 | priv->cmd_timed_out = 0; | |
459 | ||
b15152a4 DW |
460 | if (!priv->fw_ready) |
461 | continue; | |
462 | ||
876c9d3a | 463 | /* Check if we need to confirm Sleep Request received previously */ |
aa21c004 DW |
464 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
465 | !priv->dnld_sent && !priv->cur_cmd) { | |
466 | if (priv->connect_status == LBS_CONNECTED) { | |
7919b89c HS |
467 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
468 | "dnld_sent %d, cur_cmd %p\n", | |
469 | priv->currenttxskb, priv->dnld_sent, | |
470 | priv->cur_cmd); | |
59f3e4bf | 471 | |
d4ff0ef6 | 472 | lbs_ps_confirm_sleep(priv); |
59f3e4bf DW |
473 | } else { |
474 | /* workaround for firmware sending | |
475 | * deauth/linkloss event immediately | |
476 | * after sleep request; remove this | |
477 | * after firmware fixes it | |
478 | */ | |
aa21c004 | 479 | priv->psstate = PS_STATE_AWAKE; |
f3a57fd1 JP |
480 | netdev_alert(dev, |
481 | "ignore PS_SleepConfirm in non-connected state\n"); | |
876c9d3a MT |
482 | } |
483 | } | |
484 | ||
485 | /* The PS state is changed during processing of Sleep Request | |
486 | * event above | |
487 | */ | |
aa21c004 DW |
488 | if ((priv->psstate == PS_STATE_SLEEP) || |
489 | (priv->psstate == PS_STATE_PRE_SLEEP)) | |
876c9d3a MT |
490 | continue; |
491 | ||
49125454 AK |
492 | if (priv->is_deep_sleep) |
493 | continue; | |
494 | ||
876c9d3a | 495 | /* Execute the next command */ |
aa21c004 | 496 | if (!priv->dnld_sent && !priv->cur_cmd) |
10078321 | 497 | lbs_execute_next_command(priv); |
876c9d3a | 498 | |
2eb188a1 DW |
499 | spin_lock_irq(&priv->driver_lock); |
500 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { | |
501 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, | |
502 | priv->tx_pending_buf, | |
503 | priv->tx_pending_len); | |
504 | if (ret) { | |
505 | lbs_deb_tx("host_to_card failed %d\n", ret); | |
506 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
507 | } | |
508 | priv->tx_pending_len = 0; | |
509 | if (!priv->currenttxskb) { | |
510 | /* We can wake the queues immediately if we aren't | |
511 | waiting for TX feedback */ | |
512 | if (priv->connect_status == LBS_CONNECTED) | |
513 | netif_wake_queue(priv->dev); | |
514 | if (priv->mesh_dev && | |
d9319986 | 515 | netif_running(priv->mesh_dev)) |
2eb188a1 DW |
516 | netif_wake_queue(priv->mesh_dev); |
517 | } | |
518 | } | |
519 | spin_unlock_irq(&priv->driver_lock); | |
876c9d3a MT |
520 | } |
521 | ||
aa21c004 | 522 | del_timer(&priv->command_timer); |
49125454 | 523 | del_timer(&priv->auto_deepsleep_timer); |
876c9d3a | 524 | |
9012b28a | 525 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a MT |
526 | return 0; |
527 | } | |
528 | ||
75abde4d | 529 | /** |
8973a6e7 RD |
530 | * lbs_setup_firmware - gets the HW spec from the firmware and sets |
531 | * some basic parameters | |
75abde4d | 532 | * |
8973a6e7 RD |
533 | * @priv: A pointer to &struct lbs_private structure |
534 | * returns: 0 or -1 | |
75abde4d VK |
535 | */ |
536 | static int lbs_setup_firmware(struct lbs_private *priv) | |
537 | { | |
538 | int ret = -1; | |
539 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; | |
540 | ||
541 | lbs_deb_enter(LBS_DEB_FW); | |
542 | ||
543 | /* Read MAC address from firmware */ | |
544 | memset(priv->current_addr, 0xff, ETH_ALEN); | |
545 | ret = lbs_update_hw_spec(priv); | |
546 | if (ret) | |
547 | goto done; | |
548 | ||
549 | /* Read power levels if available */ | |
550 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); | |
551 | if (ret == 0) { | |
552 | priv->txpower_cur = curlevel; | |
553 | priv->txpower_min = minlevel; | |
554 | priv->txpower_max = maxlevel; | |
555 | } | |
556 | ||
557 | /* Send cmd to FW to enable 11D function */ | |
558 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1); | |
559 | ||
560 | lbs_set_mac_control(priv); | |
561 | done: | |
562 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); | |
563 | return ret; | |
564 | } | |
565 | ||
ab25ecae DW |
566 | int lbs_suspend(struct lbs_private *priv) |
567 | { | |
ab25ecae DW |
568 | int ret; |
569 | ||
61d30020 HS |
570 | lbs_deb_enter(LBS_DEB_FW); |
571 | ||
66fceb69 AK |
572 | if (priv->is_deep_sleep) { |
573 | ret = lbs_set_deep_sleep(priv, 0); | |
574 | if (ret) { | |
f3a57fd1 JP |
575 | netdev_err(priv->dev, |
576 | "deep sleep cancellation failed: %d\n", ret); | |
66fceb69 AK |
577 | return ret; |
578 | } | |
579 | priv->deep_sleep_required = 1; | |
506e9025 DW |
580 | } |
581 | ||
1311843c | 582 | ret = lbs_set_host_sleep(priv, 1); |
7e226272 | 583 | |
66fceb69 AK |
584 | netif_device_detach(priv->dev); |
585 | if (priv->mesh_dev) | |
586 | netif_device_detach(priv->mesh_dev); | |
ab25ecae | 587 | |
61d30020 | 588 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
ab25ecae DW |
589 | return ret; |
590 | } | |
591 | EXPORT_SYMBOL_GPL(lbs_suspend); | |
592 | ||
66fceb69 | 593 | int lbs_resume(struct lbs_private *priv) |
ab25ecae | 594 | { |
66fceb69 | 595 | int ret; |
61d30020 | 596 | |
66fceb69 | 597 | lbs_deb_enter(LBS_DEB_FW); |
ab25ecae | 598 | |
1311843c | 599 | ret = lbs_set_host_sleep(priv, 0); |
ab25ecae DW |
600 | |
601 | netif_device_attach(priv->dev); | |
602 | if (priv->mesh_dev) | |
603 | netif_device_attach(priv->mesh_dev); | |
604 | ||
66fceb69 AK |
605 | if (priv->deep_sleep_required) { |
606 | priv->deep_sleep_required = 0; | |
607 | ret = lbs_set_deep_sleep(priv, 1); | |
608 | if (ret) | |
f3a57fd1 JP |
609 | netdev_err(priv->dev, |
610 | "deep sleep activation failed: %d\n", ret); | |
66fceb69 AK |
611 | } |
612 | ||
75abde4d VK |
613 | if (priv->setup_fw_on_resume) |
614 | ret = lbs_setup_firmware(priv); | |
87c8c72d | 615 | |
1df4e8fe HS |
616 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
617 | return ret; | |
618 | } | |
75abde4d | 619 | EXPORT_SYMBOL_GPL(lbs_resume); |
1df4e8fe | 620 | |
1df4e8fe | 621 | /** |
8973a6e7 RD |
622 | * lbs_cmd_timeout_handler - handles the timeout of command sending. |
623 | * It will re-send the same command again. | |
624 | * | |
625 | * @data: &struct lbs_private pointer | |
1df4e8fe | 626 | */ |
40e6fa82 | 627 | static void lbs_cmd_timeout_handler(unsigned long data) |
1df4e8fe | 628 | { |
69f9032d | 629 | struct lbs_private *priv = (struct lbs_private *)data; |
1df4e8fe HS |
630 | unsigned long flags; |
631 | ||
61d30020 | 632 | lbs_deb_enter(LBS_DEB_CMD); |
2a345099 | 633 | spin_lock_irqsave(&priv->driver_lock, flags); |
1df4e8fe | 634 | |
57962f0b | 635 | if (!priv->cur_cmd) |
2a345099 | 636 | goto out; |
1df4e8fe | 637 | |
f3a57fd1 JP |
638 | netdev_info(priv->dev, "command 0x%04x timed out\n", |
639 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
1df4e8fe | 640 | |
2a345099 | 641 | priv->cmd_timed_out = 1; |
df90d843 DD |
642 | |
643 | /* | |
644 | * If the device didn't even acknowledge the command, reset the state | |
645 | * so that we don't block all future commands due to this one timeout. | |
646 | */ | |
647 | if (priv->dnld_sent == DNLD_CMD_SENT) | |
648 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
649 | ||
1df4e8fe | 650 | wake_up_interruptible(&priv->waitq); |
61d30020 | 651 | out: |
2a345099 | 652 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
61d30020 | 653 | lbs_deb_leave(LBS_DEB_CMD); |
1df4e8fe HS |
654 | } |
655 | ||
49125454 | 656 | /** |
8973a6e7 RD |
657 | * auto_deepsleep_timer_fn - put the device back to deep sleep mode when |
658 | * timer expires and no activity (command, event, data etc.) is detected. | |
659 | * @data: &struct lbs_private pointer | |
660 | * returns: N/A | |
49125454 AK |
661 | */ |
662 | static void auto_deepsleep_timer_fn(unsigned long data) | |
663 | { | |
664 | struct lbs_private *priv = (struct lbs_private *)data; | |
49125454 AK |
665 | |
666 | lbs_deb_enter(LBS_DEB_CMD); | |
667 | ||
668 | if (priv->is_activity_detected) { | |
669 | priv->is_activity_detected = 0; | |
670 | } else { | |
671 | if (priv->is_auto_deep_sleep_enabled && | |
53800f5d DW |
672 | (!priv->wakeup_dev_required) && |
673 | (priv->connect_status != LBS_CONNECTED)) { | |
674 | struct cmd_header cmd; | |
675 | ||
49125454 | 676 | lbs_deb_main("Entering auto deep sleep mode...\n"); |
53800f5d DW |
677 | memset(&cmd, 0, sizeof(cmd)); |
678 | cmd.size = cpu_to_le16(sizeof(cmd)); | |
679 | lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd, | |
680 | sizeof(cmd)); | |
49125454 AK |
681 | } |
682 | } | |
683 | mod_timer(&priv->auto_deepsleep_timer , jiffies + | |
684 | (priv->auto_deep_sleep_timeout * HZ)/1000); | |
685 | lbs_deb_leave(LBS_DEB_CMD); | |
686 | } | |
687 | ||
688 | int lbs_enter_auto_deep_sleep(struct lbs_private *priv) | |
689 | { | |
690 | lbs_deb_enter(LBS_DEB_SDIO); | |
691 | ||
692 | priv->is_auto_deep_sleep_enabled = 1; | |
693 | if (priv->is_deep_sleep) | |
694 | priv->wakeup_dev_required = 1; | |
695 | mod_timer(&priv->auto_deepsleep_timer , | |
696 | jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000); | |
697 | ||
698 | lbs_deb_leave(LBS_DEB_SDIO); | |
699 | return 0; | |
700 | } | |
701 | ||
702 | int lbs_exit_auto_deep_sleep(struct lbs_private *priv) | |
703 | { | |
704 | lbs_deb_enter(LBS_DEB_SDIO); | |
705 | ||
706 | priv->is_auto_deep_sleep_enabled = 0; | |
707 | priv->auto_deep_sleep_timeout = 0; | |
708 | del_timer(&priv->auto_deepsleep_timer); | |
709 | ||
710 | lbs_deb_leave(LBS_DEB_SDIO); | |
711 | return 0; | |
712 | } | |
713 | ||
69f9032d | 714 | static int lbs_init_adapter(struct lbs_private *priv) |
ac558ca2 | 715 | { |
e86dc1ca | 716 | int ret; |
1df4e8fe | 717 | |
61d30020 HS |
718 | lbs_deb_enter(LBS_DEB_MAIN); |
719 | ||
aa21c004 | 720 | memset(priv->current_addr, 0xff, ETH_ALEN); |
1df4e8fe | 721 | |
aa21c004 | 722 | priv->connect_status = LBS_DISCONNECTED; |
c14951fe | 723 | priv->channel = DEFAULT_AD_HOC_CHANNEL; |
d9e9778c | 724 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
d5db2dfa | 725 | priv->radio_on = 1; |
aa21c004 DW |
726 | priv->psmode = LBS802_11POWERMODECAM; |
727 | priv->psstate = PS_STATE_FULL_POWER; | |
49125454 AK |
728 | priv->is_deep_sleep = 0; |
729 | priv->is_auto_deep_sleep_enabled = 0; | |
66fceb69 | 730 | priv->deep_sleep_required = 0; |
49125454 AK |
731 | priv->wakeup_dev_required = 0; |
732 | init_waitqueue_head(&priv->ds_awake_q); | |
cc026819 | 733 | init_waitqueue_head(&priv->scan_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 | 748 | spin_lock_init(&priv->driver_lock); |
1df4e8fe | 749 | |
954ee164 | 750 | /* Allocate the command buffers */ |
10078321 | 751 | if (lbs_allocate_cmd_buffer(priv)) { |
0e4e06ae | 752 | pr_err("Out of memory allocating command buffers\n"); |
7919b89c HS |
753 | ret = -ENOMEM; |
754 | goto out; | |
755 | } | |
756 | priv->resp_idx = 0; | |
757 | priv->resp_len[0] = priv->resp_len[1] = 0; | |
758 | ||
759 | /* Create the event FIFO */ | |
c1e13f25 | 760 | ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); |
45465487 | 761 | if (ret) { |
0e4e06ae | 762 | pr_err("Out of memory allocating event FIFO buffer\n"); |
7919b89c | 763 | goto out; |
954ee164 | 764 | } |
1df4e8fe | 765 | |
954ee164 | 766 | out: |
61d30020 HS |
767 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
768 | ||
954ee164 DW |
769 | return ret; |
770 | } | |
1df4e8fe | 771 | |
69f9032d | 772 | static void lbs_free_adapter(struct lbs_private *priv) |
954ee164 | 773 | { |
61d30020 | 774 | lbs_deb_enter(LBS_DEB_MAIN); |
1df4e8fe | 775 | |
61d30020 | 776 | lbs_free_cmd_buffer(priv); |
45465487 | 777 | kfifo_free(&priv->event_fifo); |
aa21c004 | 778 | del_timer(&priv->command_timer); |
49125454 | 779 | del_timer(&priv->auto_deepsleep_timer); |
61d30020 HS |
780 | |
781 | lbs_deb_leave(LBS_DEB_MAIN); | |
1df4e8fe HS |
782 | } |
783 | ||
f02abf10 SH |
784 | static const struct net_device_ops lbs_netdev_ops = { |
785 | .ndo_open = lbs_dev_open, | |
786 | .ndo_stop = lbs_eth_stop, | |
787 | .ndo_start_xmit = lbs_hard_start_xmit, | |
788 | .ndo_set_mac_address = lbs_set_mac_address, | |
afc4b13d | 789 | .ndo_set_rx_mode = lbs_set_multicast_list, |
f02abf10 SH |
790 | .ndo_change_mtu = eth_change_mtu, |
791 | .ndo_validate_addr = eth_validate_addr, | |
792 | }; | |
793 | ||
876c9d3a | 794 | /** |
8973a6e7 | 795 | * lbs_add_card - adds the card. It will probe the |
10078321 | 796 | * card, allocate the lbs_priv and initialize the device. |
876c9d3a | 797 | * |
8973a6e7 RD |
798 | * @card: A pointer to card |
799 | * @dmdev: A pointer to &struct device | |
800 | * returns: A pointer to &struct lbs_private structure | |
876c9d3a | 801 | */ |
69f9032d | 802 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
876c9d3a | 803 | { |
ff9fc791 HS |
804 | struct net_device *dev; |
805 | struct wireless_dev *wdev; | |
69f9032d | 806 | struct lbs_private *priv = NULL; |
876c9d3a | 807 | |
61d30020 | 808 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a MT |
809 | |
810 | /* Allocate an Ethernet device and register it */ | |
ff9fc791 HS |
811 | wdev = lbs_cfg_alloc(dmdev); |
812 | if (IS_ERR(wdev)) { | |
0e4e06ae | 813 | pr_err("cfg80211 init failed\n"); |
954ee164 | 814 | goto done; |
876c9d3a | 815 | } |
e86dc1ca | 816 | |
ff9fc791 HS |
817 | wdev->iftype = NL80211_IFTYPE_STATION; |
818 | priv = wdev_priv(wdev); | |
819 | priv->wdev = wdev; | |
876c9d3a | 820 | |
10078321 | 821 | if (lbs_init_adapter(priv)) { |
0e4e06ae | 822 | pr_err("failed to initialize adapter structure\n"); |
ff9fc791 HS |
823 | goto err_wdev; |
824 | } | |
825 | ||
ff9fc791 HS |
826 | dev = alloc_netdev(0, "wlan%d", ether_setup); |
827 | if (!dev) { | |
828 | dev_err(dmdev, "no memory for network device instance\n"); | |
829 | goto err_adapter; | |
954ee164 DW |
830 | } |
831 | ||
ff9fc791 HS |
832 | dev->ieee80211_ptr = wdev; |
833 | dev->ml_priv = priv; | |
834 | SET_NETDEV_DEV(dev, dmdev); | |
835 | wdev->netdev = dev; | |
634b8f49 | 836 | priv->dev = dev; |
876c9d3a | 837 | |
f02abf10 | 838 | dev->netdev_ops = &lbs_netdev_ops; |
fb3dddf2 | 839 | dev->watchdog_timeo = 5 * HZ; |
10078321 | 840 | dev->ethtool_ops = &lbs_ethtool_ops; |
876c9d3a | 841 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
876c9d3a | 842 | |
ff9fc791 | 843 | priv->card = card; |
7732ca45 | 844 | |
c00552c6 | 845 | strcpy(dev->name, "wlan%d"); |
954ee164 DW |
846 | |
847 | lbs_deb_thread("Starting main thread...\n"); | |
848 | init_waitqueue_head(&priv->waitq); | |
10078321 | 849 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
954ee164 DW |
850 | if (IS_ERR(priv->main_thread)) { |
851 | lbs_deb_thread("Error creating main thread.\n"); | |
ff9fc791 | 852 | goto err_ndev; |
954ee164 DW |
853 | } |
854 | ||
10078321 | 855 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
75bf45a7 | 856 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
23a397ac | 857 | |
ae63a33e | 858 | priv->wol_criteria = EHS_REMOVE_WAKEUP; |
506e9025 | 859 | priv->wol_gpio = 0xff; |
66fceb69 | 860 | priv->wol_gap = 20; |
ae63a33e | 861 | priv->ehs_remove_supported = true; |
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; | |
0bb64087 | 905 | lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); |
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 | free_netdev(dev); |
924 | ||
925 | lbs_deb_leave(LBS_DEB_MAIN); | |
954ee164 | 926 | } |
10078321 | 927 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
954ee164 DW |
928 | |
929 | ||
e86dc1ca | 930 | int lbs_rtap_supported(struct lbs_private *priv) |
cd74468b HS |
931 | { |
932 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) | |
933 | return 1; | |
934 | ||
935 | /* newer firmware use a capability mask */ | |
936 | return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && | |
937 | (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); | |
938 | } | |
939 | ||
940 | ||
69f9032d | 941 | int lbs_start_card(struct lbs_private *priv) |
954ee164 DW |
942 | { |
943 | struct net_device *dev = priv->dev; | |
944 | int ret = -1; | |
945 | ||
946 | lbs_deb_enter(LBS_DEB_MAIN); | |
947 | ||
948 | /* poke the firmware */ | |
10078321 | 949 | ret = lbs_setup_firmware(priv); |
954ee164 DW |
950 | if (ret) |
951 | goto done; | |
952 | ||
ff9fc791 | 953 | if (lbs_cfg_register(priv)) { |
0e4e06ae | 954 | pr_err("cannot register device\n"); |
954ee164 | 955 | goto done; |
876c9d3a | 956 | } |
020f3d00 | 957 | |
020f3d00 | 958 | lbs_update_channel(priv); |
020f3d00 | 959 | |
6bdbdbf4 SS |
960 | if (!lbs_disablemesh) |
961 | lbs_init_mesh(priv); | |
962 | else | |
963 | pr_info("%s: mesh disabled\n", dev->name); | |
cd74468b | 964 | |
10078321 | 965 | lbs_debugfs_init_one(priv, dev); |
876c9d3a | 966 | |
f3a57fd1 | 967 | netdev_info(dev, "Marvell WLAN 802.11 adapter\n"); |
954ee164 | 968 | |
32a74b7c | 969 | ret = 0; |
876c9d3a | 970 | |
32a74b7c | 971 | done: |
954ee164 DW |
972 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
973 | return ret; | |
974 | } | |
10078321 | 975 | EXPORT_SYMBOL_GPL(lbs_start_card); |
954ee164 DW |
976 | |
977 | ||
a63e5cb2 | 978 | void lbs_stop_card(struct lbs_private *priv) |
954ee164 | 979 | { |
43baa5bb | 980 | struct net_device *dev; |
954ee164 DW |
981 | struct cmd_ctrl_node *cmdnode; |
982 | unsigned long flags; | |
983 | ||
984 | lbs_deb_enter(LBS_DEB_MAIN); | |
985 | ||
652e3f20 HS |
986 | if (!priv) |
987 | goto out; | |
43baa5bb | 988 | dev = priv->dev; |
652e3f20 | 989 | |
43baa5bb JL |
990 | netif_stop_queue(dev); |
991 | netif_carrier_off(dev); | |
954ee164 | 992 | |
10078321 | 993 | lbs_debugfs_remove_one(priv); |
cd74468b HS |
994 | lbs_deinit_mesh(priv); |
995 | ||
71b35f3a | 996 | /* Delete the timeout of the currently processing command */ |
652e3f20 | 997 | del_timer_sync(&priv->command_timer); |
49125454 | 998 | del_timer_sync(&priv->auto_deepsleep_timer); |
71b35f3a DW |
999 | |
1000 | /* Flush pending command nodes */ | |
aa21c004 | 1001 | spin_lock_irqsave(&priv->driver_lock, flags); |
71b35f3a | 1002 | lbs_deb_main("clearing pending commands\n"); |
aa21c004 | 1003 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { |
ae125bf8 | 1004 | cmdnode->result = -ENOENT; |
954ee164 | 1005 | cmdnode->cmdwaitqwoken = 1; |
df90d843 | 1006 | wake_up(&cmdnode->cmdwait_q); |
954ee164 | 1007 | } |
71b35f3a DW |
1008 | |
1009 | /* Flush the command the card is currently processing */ | |
1010 | if (priv->cur_cmd) { | |
1011 | lbs_deb_main("clearing current command\n"); | |
1012 | priv->cur_cmd->result = -ENOENT; | |
1013 | priv->cur_cmd->cmdwaitqwoken = 1; | |
df90d843 | 1014 | wake_up(&priv->cur_cmd->cmdwait_q); |
71b35f3a DW |
1015 | } |
1016 | lbs_deb_main("done clearing commands\n"); | |
aa21c004 | 1017 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
954ee164 DW |
1018 | |
1019 | unregister_netdev(dev); | |
1020 | ||
652e3f20 | 1021 | out: |
a63e5cb2 | 1022 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a | 1023 | } |
10078321 | 1024 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
084708b6 | 1025 | |
876c9d3a | 1026 | |
7919b89c HS |
1027 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
1028 | { | |
1029 | unsigned long flags; | |
1030 | ||
1031 | lbs_deb_enter(LBS_DEB_THREAD); | |
1032 | spin_lock_irqsave(&priv->driver_lock, flags); | |
1033 | ||
1034 | if (priv->psstate == PS_STATE_SLEEP) | |
1035 | priv->psstate = PS_STATE_AWAKE; | |
1036 | ||
7acd72eb | 1037 | kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
7919b89c HS |
1038 | |
1039 | wake_up_interruptible(&priv->waitq); | |
1040 | ||
1041 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
1042 | lbs_deb_leave(LBS_DEB_THREAD); | |
1043 | } | |
1044 | EXPORT_SYMBOL_GPL(lbs_queue_event); | |
1045 | ||
1046 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) | |
876c9d3a | 1047 | { |
ed37b516 | 1048 | lbs_deb_enter(LBS_DEB_THREAD); |
876c9d3a | 1049 | |
4f679496 | 1050 | if (priv->psstate == PS_STATE_SLEEP) |
aa21c004 | 1051 | priv->psstate = PS_STATE_AWAKE; |
7919b89c HS |
1052 | |
1053 | /* Swap buffers by flipping the response index */ | |
1054 | BUG_ON(resp_idx > 1); | |
1055 | priv->resp_idx = resp_idx; | |
1056 | ||
fe336150 | 1057 | wake_up_interruptible(&priv->waitq); |
876c9d3a | 1058 | |
ed37b516 | 1059 | lbs_deb_leave(LBS_DEB_THREAD); |
876c9d3a | 1060 | } |
7919b89c | 1061 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
876c9d3a | 1062 | |
72f7a667 | 1063 | /** |
8973a6e7 | 1064 | * lbs_get_firmware - Retrieves two-stage firmware |
72f7a667 | 1065 | * |
8973a6e7 RD |
1066 | * @dev: A pointer to &device structure |
1067 | * @user_helper: User-defined helper firmware file | |
1068 | * @user_mainfw: User-defined main firmware file | |
1069 | * @card_model: Bus-specific card model ID used to filter firmware table | |
1070 | * elements | |
1071 | * @fw_table: Table of firmware file names and device model numbers | |
1072 | * terminated by an entry with a NULL helper name | |
1073 | * @helper: On success, the helper firmware; caller must free | |
1074 | * @mainfw: On success, the main firmware; caller must free | |
72f7a667 | 1075 | * |
8973a6e7 | 1076 | * returns: 0 on success, non-zero on failure |
72f7a667 DW |
1077 | */ |
1078 | int lbs_get_firmware(struct device *dev, const char *user_helper, | |
1079 | const char *user_mainfw, u32 card_model, | |
1080 | const struct lbs_fw_table *fw_table, | |
1081 | const struct firmware **helper, | |
1082 | const struct firmware **mainfw) | |
1083 | { | |
1084 | const struct lbs_fw_table *iter; | |
1085 | int ret; | |
1086 | ||
1087 | BUG_ON(helper == NULL); | |
1088 | BUG_ON(mainfw == NULL); | |
1089 | ||
1090 | /* Try user-specified firmware first */ | |
1091 | if (user_helper) { | |
1092 | ret = request_firmware(helper, user_helper, dev); | |
1093 | if (ret) { | |
f3a57fd1 JP |
1094 | dev_err(dev, "couldn't find helper firmware %s\n", |
1095 | user_helper); | |
72f7a667 DW |
1096 | goto fail; |
1097 | } | |
1098 | } | |
1099 | if (user_mainfw) { | |
1100 | ret = request_firmware(mainfw, user_mainfw, dev); | |
1101 | if (ret) { | |
f3a57fd1 JP |
1102 | dev_err(dev, "couldn't find main firmware %s\n", |
1103 | user_mainfw); | |
72f7a667 DW |
1104 | goto fail; |
1105 | } | |
1106 | } | |
1107 | ||
1108 | if (*helper && *mainfw) | |
1109 | return 0; | |
1110 | ||
1111 | /* Otherwise search for firmware to use. If neither the helper or | |
1112 | * the main firmware were specified by the user, then we need to | |
1113 | * make sure that found helper & main are from the same entry in | |
1114 | * fw_table. | |
1115 | */ | |
1116 | iter = fw_table; | |
1117 | while (iter && iter->helper) { | |
1118 | if (iter->model != card_model) | |
1119 | goto next; | |
1120 | ||
1121 | if (*helper == NULL) { | |
1122 | ret = request_firmware(helper, iter->helper, dev); | |
1123 | if (ret) | |
1124 | goto next; | |
1125 | ||
1126 | /* If the device has one-stage firmware (ie cf8305) and | |
1127 | * we've got it then we don't need to bother with the | |
1128 | * main firmware. | |
1129 | */ | |
1130 | if (iter->fwname == NULL) | |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | if (*mainfw == NULL) { | |
1135 | ret = request_firmware(mainfw, iter->fwname, dev); | |
1136 | if (ret && !user_helper) { | |
1137 | /* Clear the helper if it wasn't user-specified | |
1138 | * and the main firmware load failed, to ensure | |
1139 | * we don't have mismatched firmware pairs. | |
1140 | */ | |
1141 | release_firmware(*helper); | |
1142 | *helper = NULL; | |
1143 | } | |
1144 | } | |
1145 | ||
1146 | if (*helper && *mainfw) | |
1147 | return 0; | |
1148 | ||
1149 | next: | |
1150 | iter++; | |
1151 | } | |
1152 | ||
1153 | fail: | |
1154 | /* Failed */ | |
1155 | if (*helper) { | |
1156 | release_firmware(*helper); | |
1157 | *helper = NULL; | |
1158 | } | |
1159 | if (*mainfw) { | |
1160 | release_firmware(*mainfw); | |
1161 | *mainfw = NULL; | |
1162 | } | |
1163 | ||
1164 | return -ENOENT; | |
1165 | } | |
1166 | EXPORT_SYMBOL_GPL(lbs_get_firmware); | |
1167 | ||
4fb910fd | 1168 | static int __init lbs_init_module(void) |
876c9d3a | 1169 | { |
9012b28a | 1170 | lbs_deb_enter(LBS_DEB_MAIN); |
f539f2ef HS |
1171 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
1172 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); | |
1173 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); | |
0bb64087 | 1174 | confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED); |
10078321 | 1175 | lbs_debugfs_init(); |
084708b6 HS |
1176 | lbs_deb_leave(LBS_DEB_MAIN); |
1177 | return 0; | |
876c9d3a MT |
1178 | } |
1179 | ||
4fb910fd | 1180 | static void __exit lbs_exit_module(void) |
876c9d3a | 1181 | { |
9012b28a | 1182 | lbs_deb_enter(LBS_DEB_MAIN); |
10078321 | 1183 | lbs_debugfs_remove(); |
9012b28a | 1184 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
1185 | } |
1186 | ||
10078321 HS |
1187 | module_init(lbs_init_module); |
1188 | module_exit(lbs_exit_module); | |
876c9d3a | 1189 | |
084708b6 | 1190 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
876c9d3a MT |
1191 | MODULE_AUTHOR("Marvell International Ltd."); |
1192 | MODULE_LICENSE("GPL"); |