blob: 8079560f496581600cb658c4fa09d8e5d1faed81 [file] [log] [blame]
Randy Dunlap8973a6e2011-04-26 15:25:29 -07001/*
2 * This file contains the major functions in WLAN
3 * driver. It includes init, exit, open, close and main
4 * thread etc..
5 */
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02006
Joe Perches0e4e06a2011-05-02 16:49:14 -07007#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8
Paul Gortmakerac5c24e92011-08-30 14:18:44 -04009#include <linux/module.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020010#include <linux/delay.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020011#include <linux/etherdevice.h>
Alexey Dobriyana6b7a402011-06-06 10:43:46 +000012#include <linux/hardirq.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020013#include <linux/netdevice.h>
14#include <linux/if_arp.h>
Dan Williamsfe336152007-08-02 11:32:25 -040015#include <linux/kthread.h>
Holger Schurig7919b892008-04-01 14:50:43 +020016#include <linux/kfifo.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090017#include <linux/slab.h>
Holger Schurigff9fc792009-10-06 16:31:54 +020018#include <net/cfg80211.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020019
20#include "host.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020021#include "decl.h"
22#include "dev.h"
Holger Schurigff9fc792009-10-06 16:31:54 +020023#include "cfg.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020024#include "debugfs.h"
Dan Williams6e66f032007-12-11 12:42:16 -050025#include "cmd.h"
Daniel Drake49fee692011-07-21 20:43:17 +010026#include "mesh.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020027
Dan Williams7856a542007-08-03 09:43:03 -040028#define DRIVER_RELEASE_VERSION "323.p0"
Holger Schurig10078322007-11-15 18:05:47 -050029const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
Dan Williams3ce40232007-05-10 23:03:07 -040030#ifdef DEBUG
31 "-dbg"
32#endif
33 "";
34
Holger Schuriga46c6412007-05-25 11:32:07 -040035
36/* Module parameters */
Holger Schurig10078322007-11-15 18:05:47 -050037unsigned int lbs_debug;
38EXPORT_SYMBOL_GPL(lbs_debug);
39module_param_named(libertas_debug, lbs_debug, int, 0644);
Holger Schuriga46c6412007-05-25 11:32:07 -040040
Sascha Silbe6bdbdbf42011-05-11 14:52:34 +020041unsigned int lbs_disablemesh;
42EXPORT_SYMBOL_GPL(lbs_disablemesh);
43module_param_named(libertas_disablemesh, lbs_disablemesh, int, 0644);
44
Holger Schuriga46c6412007-05-25 11:32:07 -040045
Randy Dunlap8973a6e2011-04-26 15:25:29 -070046/*
47 * This global structure is used to send the confirm_sleep command as
48 * fast as possible down to the firmware.
49 */
Holger Schurigf539f2e2008-03-26 13:22:11 +010050struct cmd_confirm_sleep confirm_sleep;
51
52
Randy Dunlap8973a6e2011-04-26 15:25:29 -070053/*
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020054 * the table to keep region code
55 */
Holger Schurig10078322007-11-15 18:05:47 -050056u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020057 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
58
Randy Dunlap8973a6e2011-04-26 15:25:29 -070059/*
Dan Williams8c512762007-08-02 11:40:45 -040060 * FW rate table. FW refers to rates by their index in this table, not by the
61 * rate value itself. Values of 0x00 are
62 * reserved positions.
63 */
64static u8 fw_data_rates[MAX_RATES] =
65 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
66 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
67};
68
69/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -070070 * lbs_fw_index_to_data_rate - use index to get the data rate
Dan Williams8c512762007-08-02 11:40:45 -040071 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -070072 * @idx: The index of data rate
73 * returns: data rate or 0
Dan Williams8c512762007-08-02 11:40:45 -040074 */
Holger Schurig10078322007-11-15 18:05:47 -050075u32 lbs_fw_index_to_data_rate(u8 idx)
Dan Williams8c512762007-08-02 11:40:45 -040076{
77 if (idx >= sizeof(fw_data_rates))
78 idx = 0;
79 return fw_data_rates[idx];
80}
81
82/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -070083 * lbs_data_rate_to_fw_index - use rate to get the index
Dan Williams8c512762007-08-02 11:40:45 -040084 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -070085 * @rate: data rate
86 * returns: index or 0
Dan Williams8c512762007-08-02 11:40:45 -040087 */
Holger Schurig10078322007-11-15 18:05:47 -050088u8 lbs_data_rate_to_fw_index(u32 rate)
Dan Williams8c512762007-08-02 11:40:45 -040089{
90 u8 i;
91
92 if (!rate)
93 return 0;
94
95 for (i = 0; i < sizeof(fw_data_rates); i++) {
96 if (rate == fw_data_rates[i])
97 return i;
98 }
99 return 0;
100}
101
Daniel Drake5c1381a2011-10-14 12:05:26 +0100102int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type)
103{
104 int ret = 0;
105
106 switch (type) {
107 case NL80211_IFTYPE_MONITOR:
108 ret = lbs_set_monitor_mode(priv, 1);
109 break;
110 case NL80211_IFTYPE_STATION:
111 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
112 ret = lbs_set_monitor_mode(priv, 0);
113 if (!ret)
114 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
115 break;
116 case NL80211_IFTYPE_ADHOC:
117 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
118 ret = lbs_set_monitor_mode(priv, 0);
119 if (!ret)
120 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
121 break;
122 default:
123 ret = -ENOTSUPP;
124 }
125 return ret;
126}
127
Daniel Draked2e7b342011-08-01 16:43:13 +0100128int lbs_start_iface(struct lbs_private *priv)
129{
130 struct cmd_ds_802_11_mac_address cmd;
131 int ret;
132
133 if (priv->power_restore) {
134 ret = priv->power_restore(priv);
135 if (ret)
136 return ret;
137 }
138
139 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
140 cmd.action = cpu_to_le16(CMD_ACT_SET);
141 memcpy(cmd.macadd, priv->current_addr, ETH_ALEN);
142
143 ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd);
144 if (ret) {
145 lbs_deb_net("set MAC address failed\n");
146 goto err;
147 }
148
Daniel Drake5c1381a2011-10-14 12:05:26 +0100149 ret = lbs_set_iface_type(priv, priv->wdev->iftype);
150 if (ret) {
151 lbs_deb_net("set iface type failed\n");
152 goto err;
153 }
154
Daniel Drake20d2ebe2012-07-15 23:44:58 +0100155 ret = lbs_set_11d_domain_info(priv);
156 if (ret) {
157 lbs_deb_net("set 11d domain info failed\n");
158 goto err;
159 }
160
Daniel Draked2e7b342011-08-01 16:43:13 +0100161 lbs_update_channel(priv);
162
163 priv->iface_running = true;
164 return 0;
165
166err:
167 if (priv->power_save)
168 priv->power_save(priv);
169 return ret;
170}
Anna Neal6fb53252008-12-09 13:23:45 -0800171
David Woodhouse23a397a2007-12-11 18:56:42 -0500172/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700173 * lbs_dev_open - open the ethX interface
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200174 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700175 * @dev: A pointer to &net_device structure
176 * returns: 0 or -EBUSY if monitor mode active
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200177 */
Holger Schurig10078322007-11-15 18:05:47 -0500178static int lbs_dev_open(struct net_device *dev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200179{
Kiran Divekarab65f642009-02-19 19:32:39 -0500180 struct lbs_private *priv = dev->ml_priv;
David Woodhouse8552855f2007-12-10 16:38:18 -0500181 int ret = 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200182
Holger Schurig61d30022008-01-16 15:59:52 +0100183 lbs_deb_enter(LBS_DEB_NET);
Daniel Draked2e7b342011-08-01 16:43:13 +0100184 if (!priv->iface_running) {
185 ret = lbs_start_iface(priv);
186 if (ret)
187 goto out;
188 }
Holger Schurig61d30022008-01-16 15:59:52 +0100189
David Woodhouse8552855f2007-12-10 16:38:18 -0500190 spin_lock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200191
Daniel Draked2e7b342011-08-01 16:43:13 +0100192 netif_carrier_off(dev);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200193
David Woodhouse8552855f2007-12-10 16:38:18 -0500194 if (!priv->tx_pending_len)
195 netif_wake_queue(dev);
Brajesh Dave01d77d82007-11-20 17:44:14 -0500196
David Woodhouse8552855f2007-12-10 16:38:18 -0500197 spin_unlock_irq(&priv->driver_lock);
Daniel Draked2e7b342011-08-01 16:43:13 +0100198
199out:
Holger Schurig61d30022008-01-16 15:59:52 +0100200 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
David Woodhouse8552855f2007-12-10 16:38:18 -0500201 return ret;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200202}
203
Daniel Draked2e7b342011-08-01 16:43:13 +0100204static bool lbs_command_queue_empty(struct lbs_private *priv)
205{
206 unsigned long flags;
207 bool ret;
208 spin_lock_irqsave(&priv->driver_lock, flags);
209 ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq);
210 spin_unlock_irqrestore(&priv->driver_lock, flags);
211 return ret;
212}
213
214int lbs_stop_iface(struct lbs_private *priv)
215{
216 unsigned long flags;
217 int ret = 0;
218
219 lbs_deb_enter(LBS_DEB_MAIN);
220
221 spin_lock_irqsave(&priv->driver_lock, flags);
222 priv->iface_running = false;
223 kfree_skb(priv->currenttxskb);
224 priv->currenttxskb = NULL;
225 priv->tx_pending_len = 0;
226 spin_unlock_irqrestore(&priv->driver_lock, flags);
227
228 cancel_work_sync(&priv->mcast_work);
Daniel Drake8f641d92011-10-03 11:33:02 +0100229 del_timer_sync(&priv->tx_lockup_timer);
Daniel Draked2e7b342011-08-01 16:43:13 +0100230
231 /* Disable command processing, and wait for all commands to complete */
232 lbs_deb_main("waiting for commands to complete\n");
233 wait_event(priv->waitq, lbs_command_queue_empty(priv));
234 lbs_deb_main("all commands completed\n");
235
236 if (priv->power_save)
237 ret = priv->power_save(priv);
238
239 lbs_deb_leave(LBS_DEB_MAIN);
240 return ret;
241}
242
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200243/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700244 * lbs_eth_stop - close the ethX interface
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200245 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700246 * @dev: A pointer to &net_device structure
247 * returns: 0
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200248 */
David Woodhouse8552855f2007-12-10 16:38:18 -0500249static int lbs_eth_stop(struct net_device *dev)
Holger Schurig78523da2007-05-25 11:49:19 -0400250{
Kiran Divekarab65f642009-02-19 19:32:39 -0500251 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200252
Holger Schurig61d30022008-01-16 15:59:52 +0100253 lbs_deb_enter(LBS_DEB_NET);
254
Daniel Draked2e7b342011-08-01 16:43:13 +0100255 if (priv->connect_status == LBS_CONNECTED)
256 lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING);
257
David Woodhouse8552855f2007-12-10 16:38:18 -0500258 spin_lock_irq(&priv->driver_lock);
David Woodhouse8552855f2007-12-10 16:38:18 -0500259 netif_stop_queue(dev);
David Woodhouse8552855f2007-12-10 16:38:18 -0500260 spin_unlock_irq(&priv->driver_lock);
Holger Schurig61d30022008-01-16 15:59:52 +0100261
Daniel Draked2e7b342011-08-01 16:43:13 +0100262 lbs_update_mcast(priv);
Daniel Drake2e301682010-11-04 21:21:52 +0000263 cancel_delayed_work_sync(&priv->scan_work);
Andres Salomon3209e062011-10-26 10:19:26 -0700264 if (priv->scan_req)
265 lbs_scan_done(priv);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100266
Daniel Draked2e7b342011-08-01 16:43:13 +0100267 netif_carrier_off(priv->dev);
268
269 if (!lbs_iface_active(priv))
270 lbs_stop_iface(priv);
271
Holger Schurig61d30022008-01-16 15:59:52 +0100272 lbs_deb_leave(LBS_DEB_NET);
David Woodhouse8552855f2007-12-10 16:38:18 -0500273 return 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200274}
275
David Woodhousee775ed72007-12-06 14:36:11 +0000276void lbs_host_to_card_done(struct lbs_private *priv)
277{
David Woodhousea63b22b2007-12-08 20:56:44 +0000278 unsigned long flags;
279
Holger Schurig61d30022008-01-16 15:59:52 +0100280 lbs_deb_enter(LBS_DEB_THREAD);
281
David Woodhousea63b22b2007-12-08 20:56:44 +0000282 spin_lock_irqsave(&priv->driver_lock, flags);
Daniel Drake8f641d92011-10-03 11:33:02 +0100283 del_timer(&priv->tx_lockup_timer);
David Woodhousee775ed72007-12-06 14:36:11 +0000284
285 priv->dnld_sent = DNLD_RES_RECEIVED;
286
287 /* Wake main thread if commands are pending */
Amitkumar Karwar49125452009-09-30 20:04:38 -0700288 if (!priv->cur_cmd || priv->tx_pending_len > 0) {
289 if (!priv->wakeup_dev_required)
Daniel Draked2e7b342011-08-01 16:43:13 +0100290 wake_up(&priv->waitq);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700291 }
David Woodhousee775ed72007-12-06 14:36:11 +0000292
David Woodhousea63b22b2007-12-08 20:56:44 +0000293 spin_unlock_irqrestore(&priv->driver_lock, flags);
Holger Schurig61d30022008-01-16 15:59:52 +0100294 lbs_deb_leave(LBS_DEB_THREAD);
David Woodhousee775ed72007-12-06 14:36:11 +0000295}
296EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
297
Holger Schurige0e42da2009-11-25 13:10:15 +0100298int lbs_set_mac_address(struct net_device *dev, void *addr)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200299{
300 int ret = 0;
Kiran Divekarab65f642009-02-19 19:32:39 -0500301 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200302 struct sockaddr *phwaddr = addr;
303
Holger Schurig9012b282007-05-25 11:27:16 -0400304 lbs_deb_enter(LBS_DEB_NET);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200305
Daniel Draked2e7b342011-08-01 16:43:13 +0100306 /*
307 * Can only set MAC address when all interfaces are down, to be written
308 * to the hardware when one of them is brought up.
309 */
310 if (lbs_iface_active(priv))
311 return -EBUSY;
312
Luis Carlos Cobo Rus0a0d08a2007-05-25 23:05:27 -0400313 /* In case it was called from the mesh device */
Holger Schurig2af9f032008-03-26 09:58:32 +0100314 dev = priv->dev;
Luis Carlos Cobo Rus0a0d08a2007-05-25 23:05:27 -0400315
Holger Schurig2af9f032008-03-26 09:58:32 +0100316 memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
317 memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN);
Holger Schurig78523da2007-05-25 11:49:19 -0400318 if (priv->mesh_dev)
Holger Schurig2af9f032008-03-26 09:58:32 +0100319 memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200320
Holger Schurig9012b282007-05-25 11:27:16 -0400321 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200322 return ret;
323}
324
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200325
David Woodhouse75bf45a2008-05-20 13:32:45 +0100326static inline int mac_in_list(unsigned char *list, int list_len,
327 unsigned char *mac)
328{
329 while (list_len) {
330 if (!memcmp(list, mac, ETH_ALEN))
331 return 1;
332 list += ETH_ALEN;
333 list_len--;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200334 }
David Woodhouse75bf45a2008-05-20 13:32:45 +0100335 return 0;
336}
337
338
339static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd,
340 struct net_device *dev, int nr_addrs)
341{
342 int i = nr_addrs;
Jiri Pirko22bedad32010-04-01 21:22:57 +0000343 struct netdev_hw_addr *ha;
Jiri Pirko655ffee2010-02-27 07:35:45 +0000344 int cnt;
David Woodhouse75bf45a2008-05-20 13:32:45 +0100345
346 if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST))
347 return nr_addrs;
348
David S. Millerb9e40852008-07-15 00:15:08 -0700349 netif_addr_lock_bh(dev);
Jiri Pirko655ffee2010-02-27 07:35:45 +0000350 cnt = netdev_mc_count(dev);
Jiri Pirko22bedad32010-04-01 21:22:57 +0000351 netdev_for_each_mc_addr(ha, dev) {
352 if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) {
Johannes Berge1749612008-10-27 15:59:26 -0700353 lbs_deb_net("mcast address %s:%pM skipped\n", dev->name,
Jiri Pirko22bedad32010-04-01 21:22:57 +0000354 ha->addr);
Jiri Pirko655ffee2010-02-27 07:35:45 +0000355 cnt--;
David Woodhouse75bf45a2008-05-20 13:32:45 +0100356 continue;
357 }
358
359 if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE)
360 break;
Jiri Pirko22bedad32010-04-01 21:22:57 +0000361 memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN);
Johannes Berge1749612008-10-27 15:59:26 -0700362 lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name,
Jiri Pirko22bedad32010-04-01 21:22:57 +0000363 ha->addr);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100364 i++;
Jiri Pirko655ffee2010-02-27 07:35:45 +0000365 cnt--;
David Woodhouse75bf45a2008-05-20 13:32:45 +0100366 }
David S. Millerb9e40852008-07-15 00:15:08 -0700367 netif_addr_unlock_bh(dev);
Jiri Pirko655ffee2010-02-27 07:35:45 +0000368 if (cnt)
David Woodhouse75bf45a2008-05-20 13:32:45 +0100369 return -EOVERFLOW;
370
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200371 return i;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200372}
373
Daniel Draked2e7b342011-08-01 16:43:13 +0100374void lbs_update_mcast(struct lbs_private *priv)
David Woodhouse75bf45a2008-05-20 13:32:45 +0100375{
David Woodhouse75bf45a2008-05-20 13:32:45 +0100376 struct cmd_ds_mac_multicast_adr mcast_cmd;
Daniel Draked2e7b342011-08-01 16:43:13 +0100377 int dev_flags = 0;
David Woodhouse75bf45a2008-05-20 13:32:45 +0100378 int nr_addrs;
379 int old_mac_control = priv->mac_control;
380
381 lbs_deb_enter(LBS_DEB_NET);
382
Daniel Draked2e7b342011-08-01 16:43:13 +0100383 if (netif_running(priv->dev))
384 dev_flags |= priv->dev->flags;
385 if (priv->mesh_dev && netif_running(priv->mesh_dev))
David Woodhouse75bf45a2008-05-20 13:32:45 +0100386 dev_flags |= priv->mesh_dev->flags;
387
388 if (dev_flags & IFF_PROMISC) {
389 priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE;
390 priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
391 CMD_ACT_MAC_MULTICAST_ENABLE);
392 goto out_set_mac_control;
393 } else if (dev_flags & IFF_ALLMULTI) {
394 do_allmulti:
395 priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
396 priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE |
397 CMD_ACT_MAC_MULTICAST_ENABLE);
398 goto out_set_mac_control;
399 }
400
401 /* Once for priv->dev, again for priv->mesh_dev if it exists */
402 nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0);
403 if (nr_addrs >= 0 && priv->mesh_dev)
404 nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs);
405 if (nr_addrs < 0)
406 goto do_allmulti;
407
408 if (nr_addrs) {
409 int size = offsetof(struct cmd_ds_mac_multicast_adr,
410 maclist[6*nr_addrs]);
411
412 mcast_cmd.action = cpu_to_le16(CMD_ACT_SET);
413 mcast_cmd.hdr.size = cpu_to_le16(size);
414 mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs);
415
416 lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size);
417
418 priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE;
419 } else
420 priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE;
421
422 priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE |
423 CMD_ACT_MAC_ALL_MULTICAST_ENABLE);
424 out_set_mac_control:
425 if (priv->mac_control != old_mac_control)
426 lbs_set_mac_control(priv);
427
428 lbs_deb_leave(LBS_DEB_NET);
429}
430
Daniel Draked2e7b342011-08-01 16:43:13 +0100431static void lbs_set_mcast_worker(struct work_struct *work)
432{
433 struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work);
434 lbs_update_mcast(priv);
435}
436
Holger Schurige0e42da2009-11-25 13:10:15 +0100437void lbs_set_multicast_list(struct net_device *dev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200438{
Kiran Divekarab65f642009-02-19 19:32:39 -0500439 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200440
David Woodhouse75bf45a2008-05-20 13:32:45 +0100441 schedule_work(&priv->mcast_work);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200442}
443
444/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700445 * lbs_thread - handles the major jobs in the LBS driver.
Holger Schurig9012b282007-05-25 11:27:16 -0400446 * It handles all events generated by firmware, RX data received
447 * from firmware and TX data sent from kernel.
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200448 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700449 * @data: A pointer to &lbs_thread structure
450 * returns: 0
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200451 */
Holger Schurig10078322007-11-15 18:05:47 -0500452static int lbs_thread(void *data)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200453{
Dan Williamsfe336152007-08-02 11:32:25 -0400454 struct net_device *dev = data;
Kiran Divekarab65f642009-02-19 19:32:39 -0500455 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200456 wait_queue_t wait;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200457
Holger Schurig9012b282007-05-25 11:27:16 -0400458 lbs_deb_enter(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200459
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200460 init_waitqueue_entry(&wait, current);
461
462 for (;;) {
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500463 int shouldsleep;
Holger Schurig7919b892008-04-01 14:50:43 +0200464 u8 resp_idx;
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500465
Holger Schurig7919b892008-04-01 14:50:43 +0200466 lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n",
467 priv->currenttxskb, priv->dnld_sent);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200468
Dan Williamsfe336152007-08-02 11:32:25 -0400469 add_wait_queue(&priv->waitq, &wait);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200470 set_current_state(TASK_INTERRUPTIBLE);
David Woodhouseaa21c002007-12-08 20:04:36 +0000471 spin_lock_irq(&priv->driver_lock);
David Woodhouse59f3e4b2007-12-08 17:42:59 +0000472
David Woodhoused9f88702007-12-13 21:48:00 -0500473 if (kthread_should_stop())
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500474 shouldsleep = 0; /* Bye */
David Woodhoused9f88702007-12-13 21:48:00 -0500475 else if (priv->surpriseremoved)
476 shouldsleep = 1; /* We need to wait until we're _told_ to die */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500477 else if (priv->psstate == PS_STATE_SLEEP)
478 shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */
David Woodhouse2a345092007-12-15 19:33:43 -0500479 else if (priv->cmd_timed_out)
480 shouldsleep = 0; /* Command timed out. Recover */
David Woodhouseb15152a2007-12-11 11:55:37 -0500481 else if (!priv->fw_ready)
482 shouldsleep = 1; /* Firmware not ready. We're waiting for it */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500483 else if (priv->dnld_sent)
484 shouldsleep = 1; /* Something is en route to the device already */
David Woodhouse2eb188a2007-12-09 23:54:27 -0500485 else if (priv->tx_pending_len > 0)
486 shouldsleep = 0; /* We've a packet to send */
Holger Schurigef707b82008-05-23 16:04:13 +0200487 else if (priv->resp_len[priv->resp_idx])
488 shouldsleep = 0; /* We have a command response */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500489 else if (priv->cur_cmd)
490 shouldsleep = 1; /* Can't send a command; one already running */
Amitkumar Karwar49125452009-09-30 20:04:38 -0700491 else if (!list_empty(&priv->cmdpendingq) &&
492 !(priv->wakeup_dev_required))
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500493 shouldsleep = 0; /* We have a command to send */
Stefani Seibolde64c0262009-12-21 14:37:28 -0800494 else if (kfifo_len(&priv->event_fifo))
Holger Schurig7919b892008-04-01 14:50:43 +0200495 shouldsleep = 0; /* We have an event to process */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500496 else
497 shouldsleep = 1; /* No command */
498
499 if (shouldsleep) {
Holger Schurig7919b892008-04-01 14:50:43 +0200500 lbs_deb_thread("sleeping, connect_status %d, "
Holger Schurig5f505d92008-04-30 10:50:07 +0200501 "psmode %d, psstate %d\n",
Holger Schurig7919b892008-04-01 14:50:43 +0200502 priv->connect_status,
503 priv->psmode, priv->psstate);
David Woodhouseaa21c002007-12-08 20:04:36 +0000504 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200505 schedule();
506 } else
David Woodhouseaa21c002007-12-08 20:04:36 +0000507 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200508
Holger Schurig7919b892008-04-01 14:50:43 +0200509 lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n",
510 priv->currenttxskb, priv->dnld_sent);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200511
512 set_current_state(TASK_RUNNING);
Dan Williamsfe336152007-08-02 11:32:25 -0400513 remove_wait_queue(&priv->waitq, &wait);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200514
Holger Schurig7919b892008-04-01 14:50:43 +0200515 lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n",
516 priv->currenttxskb, priv->dnld_sent);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200517
David Woodhoused9f88702007-12-13 21:48:00 -0500518 if (kthread_should_stop()) {
Holger Schurig7919b892008-04-01 14:50:43 +0200519 lbs_deb_thread("break from main thread\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200520 break;
521 }
522
David Woodhoused9f88702007-12-13 21:48:00 -0500523 if (priv->surpriseremoved) {
524 lbs_deb_thread("adapter removed; waiting to die...\n");
525 continue;
526 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200527
Holger Schurig7919b892008-04-01 14:50:43 +0200528 lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
529 priv->currenttxskb, priv->dnld_sent);
530
Holger Schurig7919b892008-04-01 14:50:43 +0200531 /* Process any pending command response */
Holger Schuriga01f5452008-06-04 11:10:40 +0200532 spin_lock_irq(&priv->driver_lock);
Holger Schurig7919b892008-04-01 14:50:43 +0200533 resp_idx = priv->resp_idx;
534 if (priv->resp_len[resp_idx]) {
David Woodhouseaa21c002007-12-08 20:04:36 +0000535 spin_unlock_irq(&priv->driver_lock);
Holger Schurig7919b892008-04-01 14:50:43 +0200536 lbs_process_command_response(priv,
537 priv->resp_buf[resp_idx],
538 priv->resp_len[resp_idx]);
David Woodhouseaa21c002007-12-08 20:04:36 +0000539 spin_lock_irq(&priv->driver_lock);
Holger Schurig7919b892008-04-01 14:50:43 +0200540 priv->resp_len[resp_idx] = 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200541 }
Holger Schurig7919b892008-04-01 14:50:43 +0200542 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200543
Amitkumar Karwar49125452009-09-30 20:04:38 -0700544 /* Process hardware events, e.g. card removed, link lost */
545 spin_lock_irq(&priv->driver_lock);
Stefani Seibolde64c0262009-12-21 14:37:28 -0800546 while (kfifo_len(&priv->event_fifo)) {
Amitkumar Karwar49125452009-09-30 20:04:38 -0700547 u32 event;
Stefani Seibold7acd72e2009-12-21 14:37:28 -0800548
Stefani Seibold9842c382009-12-21 14:37:29 -0800549 if (kfifo_out(&priv->event_fifo,
550 (unsigned char *) &event, sizeof(event)) !=
551 sizeof(event))
552 break;
Amitkumar Karwar49125452009-09-30 20:04:38 -0700553 spin_unlock_irq(&priv->driver_lock);
554 lbs_process_event(priv, event);
555 spin_lock_irq(&priv->driver_lock);
556 }
557 spin_unlock_irq(&priv->driver_lock);
558
559 if (priv->wakeup_dev_required) {
560 lbs_deb_thread("Waking up device...\n");
561 /* Wake up device */
562 if (priv->exit_deep_sleep(priv))
563 lbs_deb_thread("Wakeup device failed\n");
564 continue;
565 }
566
Holger Schurig7919b892008-04-01 14:50:43 +0200567 /* command timeout stuff */
David Woodhouse2a345092007-12-15 19:33:43 -0500568 if (priv->cmd_timed_out && priv->cur_cmd) {
569 struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
570
Joe Perchesf3a57fd2011-05-02 16:49:15 -0700571 netdev_info(dev, "Timeout submitting command 0x%04x\n",
572 le16_to_cpu(cmdnode->cmdbuf->command));
Holger Schurig40e6fa82010-02-04 14:37:45 +0100573 lbs_complete_command(priv, cmdnode, -ETIMEDOUT);
Daniel Drake9d5d4962012-07-30 22:58:04 +0100574
575 /* Reset card, but only when it isn't in the process
576 * of being shutdown anyway. */
577 if (!dev->dismantle && priv->reset_card)
Holger Schurig40e6fa82010-02-04 14:37:45 +0100578 priv->reset_card(priv);
David Woodhouse2a345092007-12-15 19:33:43 -0500579 }
580 priv->cmd_timed_out = 0;
581
David Woodhouseb15152a2007-12-11 11:55:37 -0500582 if (!priv->fw_ready)
583 continue;
584
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200585 /* Check if we need to confirm Sleep Request received previously */
David Woodhouseaa21c002007-12-08 20:04:36 +0000586 if (priv->psstate == PS_STATE_PRE_SLEEP &&
587 !priv->dnld_sent && !priv->cur_cmd) {
588 if (priv->connect_status == LBS_CONNECTED) {
Holger Schurig7919b892008-04-01 14:50:43 +0200589 lbs_deb_thread("pre-sleep, currenttxskb %p, "
590 "dnld_sent %d, cur_cmd %p\n",
591 priv->currenttxskb, priv->dnld_sent,
592 priv->cur_cmd);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200593
Holger Schurigd4ff0ef2008-03-19 14:25:18 +0100594 lbs_ps_confirm_sleep(priv);
David Woodhouse59f3e4b2007-12-08 17:42:59 +0000595 } else {
596 /* workaround for firmware sending
597 * deauth/linkloss event immediately
598 * after sleep request; remove this
599 * after firmware fixes it
600 */
David Woodhouseaa21c002007-12-08 20:04:36 +0000601 priv->psstate = PS_STATE_AWAKE;
Joe Perchesf3a57fd2011-05-02 16:49:15 -0700602 netdev_alert(dev,
603 "ignore PS_SleepConfirm in non-connected state\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200604 }
605 }
606
607 /* The PS state is changed during processing of Sleep Request
608 * event above
609 */
David Woodhouseaa21c002007-12-08 20:04:36 +0000610 if ((priv->psstate == PS_STATE_SLEEP) ||
611 (priv->psstate == PS_STATE_PRE_SLEEP))
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200612 continue;
613
Amitkumar Karwar49125452009-09-30 20:04:38 -0700614 if (priv->is_deep_sleep)
615 continue;
616
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200617 /* Execute the next command */
David Woodhouseaa21c002007-12-08 20:04:36 +0000618 if (!priv->dnld_sent && !priv->cur_cmd)
Holger Schurig10078322007-11-15 18:05:47 -0500619 lbs_execute_next_command(priv);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200620
David Woodhouse2eb188a2007-12-09 23:54:27 -0500621 spin_lock_irq(&priv->driver_lock);
622 if (!priv->dnld_sent && priv->tx_pending_len > 0) {
623 int ret = priv->hw_host_to_card(priv, MVMS_DAT,
624 priv->tx_pending_buf,
625 priv->tx_pending_len);
626 if (ret) {
627 lbs_deb_tx("host_to_card failed %d\n", ret);
628 priv->dnld_sent = DNLD_RES_RECEIVED;
Daniel Drake8f641d92011-10-03 11:33:02 +0100629 } else {
630 mod_timer(&priv->tx_lockup_timer,
631 jiffies + (HZ * 5));
David Woodhouse2eb188a2007-12-09 23:54:27 -0500632 }
633 priv->tx_pending_len = 0;
634 if (!priv->currenttxskb) {
635 /* We can wake the queues immediately if we aren't
636 waiting for TX feedback */
637 if (priv->connect_status == LBS_CONNECTED)
638 netif_wake_queue(priv->dev);
639 if (priv->mesh_dev &&
Daniel Draked9319982011-07-20 17:53:56 +0100640 netif_running(priv->mesh_dev))
David Woodhouse2eb188a2007-12-09 23:54:27 -0500641 netif_wake_queue(priv->mesh_dev);
642 }
643 }
644 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200645 }
646
David Woodhouseaa21c002007-12-08 20:04:36 +0000647 del_timer(&priv->command_timer);
Daniel Drake8f641d92011-10-03 11:33:02 +0100648 del_timer(&priv->tx_lockup_timer);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700649 del_timer(&priv->auto_deepsleep_timer);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200650
Holger Schurig9012b282007-05-25 11:27:16 -0400651 lbs_deb_leave(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200652 return 0;
653}
654
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200655/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700656 * lbs_setup_firmware - gets the HW spec from the firmware and sets
657 * some basic parameters
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200658 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700659 * @priv: A pointer to &struct lbs_private structure
660 * returns: 0 or -1
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200661 */
662static int lbs_setup_firmware(struct lbs_private *priv)
663{
664 int ret = -1;
665 s16 curlevel = 0, minlevel = 0, maxlevel = 0;
666
667 lbs_deb_enter(LBS_DEB_FW);
668
669 /* Read MAC address from firmware */
Joe Perches93803b32015-03-02 19:54:49 -0800670 eth_broadcast_addr(priv->current_addr);
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200671 ret = lbs_update_hw_spec(priv);
672 if (ret)
673 goto done;
674
675 /* Read power levels if available */
676 ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel);
677 if (ret == 0) {
678 priv->txpower_cur = curlevel;
679 priv->txpower_min = minlevel;
680 priv->txpower_max = maxlevel;
681 }
682
683 /* Send cmd to FW to enable 11D function */
684 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1);
Daniel Drake871fc092012-09-11 11:38:11 -0400685 if (ret)
686 goto done;
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200687
Daniel Drake871fc092012-09-11 11:38:11 -0400688 ret = lbs_set_mac_control_sync(priv);
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200689done:
690 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
691 return ret;
692}
693
David Woodhouseab25eca2007-12-12 17:38:56 -0500694int lbs_suspend(struct lbs_private *priv)
695{
David Woodhouseab25eca2007-12-12 17:38:56 -0500696 int ret;
697
Holger Schurig61d30022008-01-16 15:59:52 +0100698 lbs_deb_enter(LBS_DEB_FW);
699
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700700 if (priv->is_deep_sleep) {
701 ret = lbs_set_deep_sleep(priv, 0);
702 if (ret) {
Joe Perchesf3a57fd2011-05-02 16:49:15 -0700703 netdev_err(priv->dev,
704 "deep sleep cancellation failed: %d\n", ret);
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700705 return ret;
706 }
707 priv->deep_sleep_required = 1;
David Woodhouse506e9022007-12-12 20:06:06 -0500708 }
709
Amitkumar Karwar13118432010-07-08 06:43:48 +0530710 ret = lbs_set_host_sleep(priv, 1);
David Woodhouse7e226272007-12-14 22:53:41 -0500711
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700712 netif_device_detach(priv->dev);
713 if (priv->mesh_dev)
714 netif_device_detach(priv->mesh_dev);
David Woodhouseab25eca2007-12-12 17:38:56 -0500715
Holger Schurig61d30022008-01-16 15:59:52 +0100716 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
David Woodhouseab25eca2007-12-12 17:38:56 -0500717 return ret;
718}
719EXPORT_SYMBOL_GPL(lbs_suspend);
720
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700721int lbs_resume(struct lbs_private *priv)
David Woodhouseab25eca2007-12-12 17:38:56 -0500722{
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700723 int ret;
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700724
Holger Schurig61d30022008-01-16 15:59:52 +0100725 lbs_deb_enter(LBS_DEB_FW);
726
Amitkumar Karwar13118432010-07-08 06:43:48 +0530727 ret = lbs_set_host_sleep(priv, 0);
David Woodhouseab25eca2007-12-12 17:38:56 -0500728
729 netif_device_attach(priv->dev);
730 if (priv->mesh_dev)
731 netif_device_attach(priv->mesh_dev);
732
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700733 if (priv->deep_sleep_required) {
734 priv->deep_sleep_required = 0;
735 ret = lbs_set_deep_sleep(priv, 1);
736 if (ret)
Joe Perchesf3a57fd2011-05-02 16:49:15 -0700737 netdev_err(priv->dev,
738 "deep sleep activation failed: %d\n", ret);
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700739 }
740
Vasily Khoruzhick75abde42011-01-21 22:44:49 +0200741 if (priv->setup_fw_on_resume)
742 ret = lbs_setup_firmware(priv);
743
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700744 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
745 return ret;
David Woodhouseab25eca2007-12-12 17:38:56 -0500746}
747EXPORT_SYMBOL_GPL(lbs_resume);
748
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200749/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700750 * lbs_cmd_timeout_handler - handles the timeout of command sending.
751 * It will re-send the same command again.
752 *
753 * @data: &struct lbs_private pointer
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400754 */
Holger Schurig40e6fa82010-02-04 14:37:45 +0100755static void lbs_cmd_timeout_handler(unsigned long data)
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400756{
Holger Schurig69f90322007-11-23 15:43:44 +0100757 struct lbs_private *priv = (struct lbs_private *)data;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400758 unsigned long flags;
759
Holger Schurig61d30022008-01-16 15:59:52 +0100760 lbs_deb_enter(LBS_DEB_CMD);
David Woodhouseaa21c002007-12-08 20:04:36 +0000761 spin_lock_irqsave(&priv->driver_lock, flags);
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400762
Holger Schurig57962f02008-05-14 16:30:28 +0200763 if (!priv->cur_cmd)
David Woodhouse2a345092007-12-15 19:33:43 -0500764 goto out;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400765
Joe Perchesf3a57fd2011-05-02 16:49:15 -0700766 netdev_info(priv->dev, "command 0x%04x timed out\n",
767 le16_to_cpu(priv->cur_cmd->cmdbuf->command));
David Woodhouse2a345092007-12-15 19:33:43 -0500768
769 priv->cmd_timed_out = 1;
Daniel Drakedf90d842011-07-09 15:41:25 +0100770
771 /*
772 * If the device didn't even acknowledge the command, reset the state
773 * so that we don't block all future commands due to this one timeout.
774 */
775 if (priv->dnld_sent == DNLD_CMD_SENT)
776 priv->dnld_sent = DNLD_RES_RECEIVED;
777
Daniel Draked2e7b342011-08-01 16:43:13 +0100778 wake_up(&priv->waitq);
Holger Schurig61d30022008-01-16 15:59:52 +0100779out:
David Woodhouse2a345092007-12-15 19:33:43 -0500780 spin_unlock_irqrestore(&priv->driver_lock, flags);
Holger Schurig61d30022008-01-16 15:59:52 +0100781 lbs_deb_leave(LBS_DEB_CMD);
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400782}
783
Amitkumar Karwar49125452009-09-30 20:04:38 -0700784/**
Daniel Drake8f641d92011-10-03 11:33:02 +0100785 * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames
786 * to the hardware. This is known to frequently happen with SD8686 when
787 * waking up after a Wake-on-WLAN-triggered resume.
788 *
789 * @data: &struct lbs_private pointer
790 */
791static void lbs_tx_lockup_handler(unsigned long data)
792{
793 struct lbs_private *priv = (struct lbs_private *)data;
794 unsigned long flags;
795
796 lbs_deb_enter(LBS_DEB_TX);
797 spin_lock_irqsave(&priv->driver_lock, flags);
798
799 netdev_info(priv->dev, "TX lockup detected\n");
800 if (priv->reset_card)
801 priv->reset_card(priv);
802
803 priv->dnld_sent = DNLD_RES_RECEIVED;
804 wake_up_interruptible(&priv->waitq);
805
806 spin_unlock_irqrestore(&priv->driver_lock, flags);
807 lbs_deb_leave(LBS_DEB_TX);
808}
809
810/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700811 * auto_deepsleep_timer_fn - put the device back to deep sleep mode when
812 * timer expires and no activity (command, event, data etc.) is detected.
813 * @data: &struct lbs_private pointer
814 * returns: N/A
Amitkumar Karwar49125452009-09-30 20:04:38 -0700815 */
816static void auto_deepsleep_timer_fn(unsigned long data)
817{
818 struct lbs_private *priv = (struct lbs_private *)data;
Amitkumar Karwar49125452009-09-30 20:04:38 -0700819
820 lbs_deb_enter(LBS_DEB_CMD);
821
822 if (priv->is_activity_detected) {
823 priv->is_activity_detected = 0;
824 } else {
825 if (priv->is_auto_deep_sleep_enabled &&
Dan Williams53800f52010-07-27 13:15:01 -0700826 (!priv->wakeup_dev_required) &&
827 (priv->connect_status != LBS_CONNECTED)) {
828 struct cmd_header cmd;
829
Amitkumar Karwar49125452009-09-30 20:04:38 -0700830 lbs_deb_main("Entering auto deep sleep mode...\n");
Dan Williams53800f52010-07-27 13:15:01 -0700831 memset(&cmd, 0, sizeof(cmd));
832 cmd.size = cpu_to_le16(sizeof(cmd));
833 lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd,
834 sizeof(cmd));
Amitkumar Karwar49125452009-09-30 20:04:38 -0700835 }
836 }
837 mod_timer(&priv->auto_deepsleep_timer , jiffies +
838 (priv->auto_deep_sleep_timeout * HZ)/1000);
839 lbs_deb_leave(LBS_DEB_CMD);
840}
841
842int lbs_enter_auto_deep_sleep(struct lbs_private *priv)
843{
844 lbs_deb_enter(LBS_DEB_SDIO);
845
846 priv->is_auto_deep_sleep_enabled = 1;
847 if (priv->is_deep_sleep)
848 priv->wakeup_dev_required = 1;
849 mod_timer(&priv->auto_deepsleep_timer ,
850 jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000);
851
852 lbs_deb_leave(LBS_DEB_SDIO);
853 return 0;
854}
855
856int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
857{
858 lbs_deb_enter(LBS_DEB_SDIO);
859
860 priv->is_auto_deep_sleep_enabled = 0;
861 priv->auto_deep_sleep_timeout = 0;
862 del_timer(&priv->auto_deepsleep_timer);
863
864 lbs_deb_leave(LBS_DEB_SDIO);
865 return 0;
866}
867
Holger Schurig69f90322007-11-23 15:43:44 +0100868static int lbs_init_adapter(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -0400869{
Kiran Divekare86dc1c2010-06-14 22:01:26 +0530870 int ret;
Dan Williams954ee162007-08-20 11:43:25 -0400871
Holger Schurig61d30022008-01-16 15:59:52 +0100872 lbs_deb_enter(LBS_DEB_MAIN);
873
Joe Perches93803b32015-03-02 19:54:49 -0800874 eth_broadcast_addr(priv->current_addr);
Dan Williams954ee162007-08-20 11:43:25 -0400875
David Woodhouseaa21c002007-12-08 20:04:36 +0000876 priv->connect_status = LBS_DISCONNECTED;
Holger Schurigc14951f2009-10-22 15:30:50 +0200877 priv->channel = DEFAULT_AD_HOC_CHANNEL;
Holger Schurigd9e97782008-03-12 16:06:43 +0100878 priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
Dan Williamsd5db2df2008-08-21 17:51:07 -0400879 priv->radio_on = 1;
David Woodhouseaa21c002007-12-08 20:04:36 +0000880 priv->psmode = LBS802_11POWERMODECAM;
881 priv->psstate = PS_STATE_FULL_POWER;
Amitkumar Karwar49125452009-09-30 20:04:38 -0700882 priv->is_deep_sleep = 0;
883 priv->is_auto_deep_sleep_enabled = 0;
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700884 priv->deep_sleep_required = 0;
Amitkumar Karwar49125452009-09-30 20:04:38 -0700885 priv->wakeup_dev_required = 0;
886 init_waitqueue_head(&priv->ds_awake_q);
Dan Williamscc026812010-08-04 00:43:47 -0500887 init_waitqueue_head(&priv->scan_q);
Amitkumar Karwar921ca032010-02-25 17:16:36 -0800888 priv->authtype_auto = 1;
Amitkumar Karwar66fceb62010-05-19 03:24:38 -0700889 priv->is_host_sleep_configured = 0;
890 priv->is_host_sleep_activated = 0;
891 init_waitqueue_head(&priv->host_sleep_q);
Daniel Drake534111c2012-04-16 23:53:26 +0100892 init_waitqueue_head(&priv->fw_waitq);
David Woodhouseaa21c002007-12-08 20:04:36 +0000893 mutex_init(&priv->lock);
Dan Williams954ee162007-08-20 11:43:25 -0400894
Holger Schurig40e6fa82010-02-04 14:37:45 +0100895 setup_timer(&priv->command_timer, lbs_cmd_timeout_handler,
Holger Schurig61d30022008-01-16 15:59:52 +0100896 (unsigned long)priv);
Daniel Drake8f641d92011-10-03 11:33:02 +0100897 setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler,
898 (unsigned long)priv);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700899 setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn,
900 (unsigned long)priv);
Dan Williams954ee162007-08-20 11:43:25 -0400901
David Woodhouseaa21c002007-12-08 20:04:36 +0000902 INIT_LIST_HEAD(&priv->cmdfreeq);
903 INIT_LIST_HEAD(&priv->cmdpendingq);
Dan Williams954ee162007-08-20 11:43:25 -0400904
David Woodhouseaa21c002007-12-08 20:04:36 +0000905 spin_lock_init(&priv->driver_lock);
Dan Williams954ee162007-08-20 11:43:25 -0400906
907 /* Allocate the command buffers */
Holger Schurig10078322007-11-15 18:05:47 -0500908 if (lbs_allocate_cmd_buffer(priv)) {
Joe Perches0e4e06a2011-05-02 16:49:14 -0700909 pr_err("Out of memory allocating command buffers\n");
Holger Schurig7919b892008-04-01 14:50:43 +0200910 ret = -ENOMEM;
911 goto out;
912 }
913 priv->resp_idx = 0;
914 priv->resp_len[0] = priv->resp_len[1] = 0;
915
916 /* Create the event FIFO */
Stefani Seiboldc1e13f22009-12-21 14:37:27 -0800917 ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL);
Stefani Seibold45465482009-12-21 14:37:26 -0800918 if (ret) {
Joe Perches0e4e06a2011-05-02 16:49:14 -0700919 pr_err("Out of memory allocating event FIFO buffer\n");
Holger Schurig7919b892008-04-01 14:50:43 +0200920 goto out;
Dan Williams954ee162007-08-20 11:43:25 -0400921 }
922
923out:
Holger Schurig61d30022008-01-16 15:59:52 +0100924 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
925
Dan Williams954ee162007-08-20 11:43:25 -0400926 return ret;
927}
928
Holger Schurig69f90322007-11-23 15:43:44 +0100929static void lbs_free_adapter(struct lbs_private *priv)
Holger Schurigac558ca2007-08-02 11:49:06 -0400930{
Holger Schurig61d30022008-01-16 15:59:52 +0100931 lbs_deb_enter(LBS_DEB_MAIN);
932
Holger Schurig10078322007-11-15 18:05:47 -0500933 lbs_free_cmd_buffer(priv);
Stefani Seibold45465482009-12-21 14:37:26 -0800934 kfifo_free(&priv->event_fifo);
David Woodhouseaa21c002007-12-08 20:04:36 +0000935 del_timer(&priv->command_timer);
Daniel Drake8f641d92011-10-03 11:33:02 +0100936 del_timer(&priv->tx_lockup_timer);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700937 del_timer(&priv->auto_deepsleep_timer);
Holger Schurig61d30022008-01-16 15:59:52 +0100938
939 lbs_deb_leave(LBS_DEB_MAIN);
Holger Schurigac558ca2007-08-02 11:49:06 -0400940}
941
Stephen Hemmingerf02abf12009-03-20 19:36:37 +0000942static const struct net_device_ops lbs_netdev_ops = {
943 .ndo_open = lbs_dev_open,
944 .ndo_stop = lbs_eth_stop,
945 .ndo_start_xmit = lbs_hard_start_xmit,
946 .ndo_set_mac_address = lbs_set_mac_address,
Jiri Pirkoafc4b132011-08-16 06:29:01 +0000947 .ndo_set_rx_mode = lbs_set_multicast_list,
Stephen Hemmingerf02abf12009-03-20 19:36:37 +0000948 .ndo_change_mtu = eth_change_mtu,
949 .ndo_validate_addr = eth_validate_addr,
950};
951
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400952/**
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700953 * lbs_add_card - adds the card. It will probe the
Holger Schurig10078322007-11-15 18:05:47 -0500954 * card, allocate the lbs_priv and initialize the device.
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200955 *
Randy Dunlap8973a6e2011-04-26 15:25:29 -0700956 * @card: A pointer to card
957 * @dmdev: A pointer to &struct device
958 * returns: A pointer to &struct lbs_private structure
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200959 */
Holger Schurig69f90322007-11-23 15:43:44 +0100960struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200961{
Holger Schurigff9fc792009-10-06 16:31:54 +0200962 struct net_device *dev;
963 struct wireless_dev *wdev;
Holger Schurig69f90322007-11-23 15:43:44 +0100964 struct lbs_private *priv = NULL;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200965
Holger Schurig61d30022008-01-16 15:59:52 +0100966 lbs_deb_enter(LBS_DEB_MAIN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200967
968 /* Allocate an Ethernet device and register it */
Holger Schurigff9fc792009-10-06 16:31:54 +0200969 wdev = lbs_cfg_alloc(dmdev);
970 if (IS_ERR(wdev)) {
Joe Perches0e4e06a2011-05-02 16:49:14 -0700971 pr_err("cfg80211 init failed\n");
Dan Williams954ee162007-08-20 11:43:25 -0400972 goto done;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200973 }
Kiran Divekare86dc1c2010-06-14 22:01:26 +0530974
Holger Schurigff9fc792009-10-06 16:31:54 +0200975 wdev->iftype = NL80211_IFTYPE_STATION;
976 priv = wdev_priv(wdev);
977 priv->wdev = wdev;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200978
Holger Schurig10078322007-11-15 18:05:47 -0500979 if (lbs_init_adapter(priv)) {
Joe Perches0e4e06a2011-05-02 16:49:14 -0700980 pr_err("failed to initialize adapter structure\n");
Holger Schurigff9fc792009-10-06 16:31:54 +0200981 goto err_wdev;
Dan Williams954ee162007-08-20 11:43:25 -0400982 }
983
Tom Gundersenc835a672014-07-14 16:37:24 +0200984 dev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, ether_setup);
Holger Schurigff9fc792009-10-06 16:31:54 +0200985 if (!dev) {
986 dev_err(dmdev, "no memory for network device instance\n");
987 goto err_adapter;
988 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200989
Holger Schurigff9fc792009-10-06 16:31:54 +0200990 dev->ieee80211_ptr = wdev;
991 dev->ml_priv = priv;
992 SET_NETDEV_DEV(dev, dmdev);
993 wdev->netdev = dev;
994 priv->dev = dev;
995
Stephen Hemmingerf02abf12009-03-20 19:36:37 +0000996 dev->netdev_ops = &lbs_netdev_ops;
Holger Schurigfb3dddf2007-05-25 11:58:22 -0400997 dev->watchdog_timeo = 5 * HZ;
Holger Schurig10078322007-11-15 18:05:47 -0500998 dev->ethtool_ops = &lbs_ethtool_ops;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200999 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001000
Holger Schurigff9fc792009-10-06 16:31:54 +02001001 priv->card = card;
Holger Schurigff9fc792009-10-06 16:31:54 +02001002
Daniel Mackc00552c2009-08-11 16:09:34 +02001003 strcpy(dev->name, "wlan%d");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001004
Dan Williamsfe336152007-08-02 11:32:25 -04001005 lbs_deb_thread("Starting main thread...\n");
1006 init_waitqueue_head(&priv->waitq);
Holger Schurig10078322007-11-15 18:05:47 -05001007 priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
Dan Williamsfe336152007-08-02 11:32:25 -04001008 if (IS_ERR(priv->main_thread)) {
1009 lbs_deb_thread("Error creating main thread.\n");
Holger Schurigff9fc792009-10-06 16:31:54 +02001010 goto err_ndev;
Dan Williamsfe336152007-08-02 11:32:25 -04001011 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001012
Holger Schurig10078322007-11-15 18:05:47 -05001013 priv->work_thread = create_singlethread_workqueue("lbs_worker");
David Woodhouse75bf45a2008-05-20 13:32:45 +01001014 INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
David Woodhouse23a397a2007-12-11 18:56:42 -05001015
Deepak Saxenaae63a332010-10-31 13:40:33 +00001016 priv->wol_criteria = EHS_REMOVE_WAKEUP;
David Woodhouse506e9022007-12-12 20:06:06 -05001017 priv->wol_gpio = 0xff;
Amitkumar Karwar66fceb62010-05-19 03:24:38 -07001018 priv->wol_gap = 20;
Deepak Saxenaae63a332010-10-31 13:40:33 +00001019 priv->ehs_remove_supported = true;
David Woodhouse506e9022007-12-12 20:06:06 -05001020
Dan Williams954ee162007-08-20 11:43:25 -04001021 goto done;
1022
Holger Schurigff9fc792009-10-06 16:31:54 +02001023 err_ndev:
Dan Williams954ee162007-08-20 11:43:25 -04001024 free_netdev(dev);
Holger Schurigff9fc792009-10-06 16:31:54 +02001025
1026 err_adapter:
1027 lbs_free_adapter(priv);
1028
1029 err_wdev:
1030 lbs_cfg_free(priv);
1031
Dan Williams954ee162007-08-20 11:43:25 -04001032 priv = NULL;
1033
1034done:
Holger Schurig61d30022008-01-16 15:59:52 +01001035 lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv);
Dan Williams954ee162007-08-20 11:43:25 -04001036 return priv;
1037}
Holger Schurig10078322007-11-15 18:05:47 -05001038EXPORT_SYMBOL_GPL(lbs_add_card);
Dan Williams954ee162007-08-20 11:43:25 -04001039
1040
Holger Schuriga63e5cb2008-04-30 10:50:39 +02001041void lbs_remove_card(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -04001042{
Dan Williams954ee162007-08-20 11:43:25 -04001043 struct net_device *dev = priv->dev;
Dan Williams954ee162007-08-20 11:43:25 -04001044
1045 lbs_deb_enter(LBS_DEB_MAIN);
1046
David Woodhouse23a397a2007-12-11 18:56:42 -05001047 lbs_remove_mesh(priv);
Daniel Drake0beecac82012-04-16 23:53:02 +01001048
1049 if (priv->wiphy_registered)
1050 lbs_scan_deinit(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001051
Daniel Drake534111c2012-04-16 23:53:26 +01001052 lbs_wait_for_firmware_load(priv);
1053
Dan Williams71b35f32008-09-08 16:34:40 -04001054 /* worker thread destruction blocks on the in-flight command which
1055 * should have been cleared already in lbs_stop_card().
1056 */
1057 lbs_deb_main("destroying worker thread\n");
Dan Williams954ee162007-08-20 11:43:25 -04001058 destroy_workqueue(priv->work_thread);
Dan Williams71b35f32008-09-08 16:34:40 -04001059 lbs_deb_main("done destroying worker thread\n");
Dan Williams954ee162007-08-20 11:43:25 -04001060
David Woodhouseaa21c002007-12-08 20:04:36 +00001061 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1062 priv->psmode = LBS802_11POWERMODECAM;
Dan Williams0bb64082010-07-27 13:08:08 -07001063 lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001064 }
1065
Amitkumar Karwar49125452009-09-30 20:04:38 -07001066 if (priv->is_deep_sleep) {
1067 priv->is_deep_sleep = 0;
1068 wake_up_interruptible(&priv->ds_awake_q);
1069 }
1070
Amitkumar Karwar66fceb62010-05-19 03:24:38 -07001071 priv->is_host_sleep_configured = 0;
1072 priv->is_host_sleep_activated = 0;
1073 wake_up_interruptible(&priv->host_sleep_q);
1074
Dan Williams954ee162007-08-20 11:43:25 -04001075 /* Stop the thread servicing the interrupts */
David Woodhouseaa21c002007-12-08 20:04:36 +00001076 priv->surpriseremoved = 1;
Dan Williams954ee162007-08-20 11:43:25 -04001077 kthread_stop(priv->main_thread);
1078
Holger Schurig10078322007-11-15 18:05:47 -05001079 lbs_free_adapter(priv);
Holger Schurigff9fc792009-10-06 16:31:54 +02001080 lbs_cfg_free(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001081 free_netdev(dev);
1082
1083 lbs_deb_leave(LBS_DEB_MAIN);
Dan Williams954ee162007-08-20 11:43:25 -04001084}
Holger Schurig10078322007-11-15 18:05:47 -05001085EXPORT_SYMBOL_GPL(lbs_remove_card);
Dan Williams954ee162007-08-20 11:43:25 -04001086
1087
Kiran Divekare86dc1c2010-06-14 22:01:26 +05301088int lbs_rtap_supported(struct lbs_private *priv)
Holger Schurigcd744682009-12-02 15:25:59 +01001089{
1090 if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
1091 return 1;
1092
1093 /* newer firmware use a capability mask */
1094 return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
1095 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK));
1096}
1097
1098
Holger Schurig69f90322007-11-23 15:43:44 +01001099int lbs_start_card(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -04001100{
1101 struct net_device *dev = priv->dev;
1102 int ret = -1;
1103
1104 lbs_deb_enter(LBS_DEB_MAIN);
1105
1106 /* poke the firmware */
Holger Schurig10078322007-11-15 18:05:47 -05001107 ret = lbs_setup_firmware(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001108 if (ret)
1109 goto done;
1110
Daniel Drake49fee692011-07-21 20:43:17 +01001111 if (!lbs_disablemesh)
1112 lbs_init_mesh(priv);
1113 else
1114 pr_info("%s: mesh disabled\n", dev->name);
1115
Holger Schurigff9fc792009-10-06 16:31:54 +02001116 if (lbs_cfg_register(priv)) {
Joe Perches0e4e06a2011-05-02 16:49:14 -07001117 pr_err("cannot register device\n");
Dan Williams954ee162007-08-20 11:43:25 -04001118 goto done;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001119 }
David Woodhouse020f3d02007-12-12 23:29:13 -05001120
Daniel Drake49fee692011-07-21 20:43:17 +01001121 if (lbs_mesh_activated(priv))
1122 lbs_start_mesh(priv);
Holger Schurigcd744682009-12-02 15:25:59 +01001123
Holger Schurig10078322007-11-15 18:05:47 -05001124 lbs_debugfs_init_one(priv, dev);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001125
Joe Perchesf3a57fd2011-05-02 16:49:15 -07001126 netdev_info(dev, "Marvell WLAN 802.11 adapter\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001127
Dan Williams954ee162007-08-20 11:43:25 -04001128 ret = 0;
1129
Holger Schurig32a74b72007-05-25 12:04:31 -04001130done:
Dan Williams954ee162007-08-20 11:43:25 -04001131 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
Holger Schurig32a74b72007-05-25 12:04:31 -04001132 return ret;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001133}
Holger Schurig10078322007-11-15 18:05:47 -05001134EXPORT_SYMBOL_GPL(lbs_start_card);
Dan Williams954ee162007-08-20 11:43:25 -04001135
1136
Holger Schuriga63e5cb2008-04-30 10:50:39 +02001137void lbs_stop_card(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -04001138{
Julia Lawall43baa5b2009-01-09 10:23:10 +00001139 struct net_device *dev;
Dan Williams954ee162007-08-20 11:43:25 -04001140
1141 lbs_deb_enter(LBS_DEB_MAIN);
1142
Holger Schurig652e3f22008-04-30 10:51:15 +02001143 if (!priv)
1144 goto out;
Julia Lawall43baa5b2009-01-09 10:23:10 +00001145 dev = priv->dev;
Holger Schurig652e3f22008-04-30 10:51:15 +02001146
Daniel Drake0beecac82012-04-16 23:53:02 +01001147 /* If the netdev isn't registered, it means that lbs_start_card() was
1148 * never called so we have nothing to do here. */
1149 if (dev->reg_state != NETREG_REGISTERED)
1150 goto out;
1151
Julia Lawall43baa5b2009-01-09 10:23:10 +00001152 netif_stop_queue(dev);
1153 netif_carrier_off(dev);
Dan Williams954ee162007-08-20 11:43:25 -04001154
Holger Schurig10078322007-11-15 18:05:47 -05001155 lbs_debugfs_remove_one(priv);
Holger Schurigcd744682009-12-02 15:25:59 +01001156 lbs_deinit_mesh(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001157 unregister_netdev(dev);
1158
Holger Schurig652e3f22008-04-30 10:51:15 +02001159out:
Holger Schuriga63e5cb2008-04-30 10:50:39 +02001160 lbs_deb_leave(LBS_DEB_MAIN);
Dan Williams954ee162007-08-20 11:43:25 -04001161}
Holger Schurig10078322007-11-15 18:05:47 -05001162EXPORT_SYMBOL_GPL(lbs_stop_card);
Holger Schurig084708b2007-05-25 12:37:58 -04001163
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001164
Holger Schurig7919b892008-04-01 14:50:43 +02001165void lbs_queue_event(struct lbs_private *priv, u32 event)
1166{
1167 unsigned long flags;
1168
1169 lbs_deb_enter(LBS_DEB_THREAD);
1170 spin_lock_irqsave(&priv->driver_lock, flags);
1171
1172 if (priv->psstate == PS_STATE_SLEEP)
1173 priv->psstate = PS_STATE_AWAKE;
1174
Stefani Seibold7acd72e2009-12-21 14:37:28 -08001175 kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32));
Holger Schurig7919b892008-04-01 14:50:43 +02001176
Daniel Draked2e7b342011-08-01 16:43:13 +01001177 wake_up(&priv->waitq);
Holger Schurig7919b892008-04-01 14:50:43 +02001178
1179 spin_unlock_irqrestore(&priv->driver_lock, flags);
1180 lbs_deb_leave(LBS_DEB_THREAD);
1181}
1182EXPORT_SYMBOL_GPL(lbs_queue_event);
1183
1184void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001185{
Holger Schuriged37b512007-05-25 11:52:42 -04001186 lbs_deb_enter(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001187
David Woodhouse4f679492007-12-10 14:58:37 -05001188 if (priv->psstate == PS_STATE_SLEEP)
David Woodhouseaa21c002007-12-08 20:04:36 +00001189 priv->psstate = PS_STATE_AWAKE;
Holger Schurig7919b892008-04-01 14:50:43 +02001190
1191 /* Swap buffers by flipping the response index */
1192 BUG_ON(resp_idx > 1);
1193 priv->resp_idx = resp_idx;
1194
Daniel Draked2e7b342011-08-01 16:43:13 +01001195 wake_up(&priv->waitq);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001196
Holger Schuriged37b512007-05-25 11:52:42 -04001197 lbs_deb_leave(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001198}
Holger Schurig7919b892008-04-01 14:50:43 +02001199EXPORT_SYMBOL_GPL(lbs_notify_command_response);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001200
Andres Salomon4fb910f2007-11-20 17:43:45 -05001201static int __init lbs_init_module(void)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001202{
Holger Schurig9012b282007-05-25 11:27:16 -04001203 lbs_deb_enter(LBS_DEB_MAIN);
Holger Schurigf539f2e2008-03-26 13:22:11 +01001204 memset(&confirm_sleep, 0, sizeof(confirm_sleep));
1205 confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE);
1206 confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep));
Dan Williams0bb64082010-07-27 13:08:08 -07001207 confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED);
Holger Schurig10078322007-11-15 18:05:47 -05001208 lbs_debugfs_init();
Holger Schurig084708b2007-05-25 12:37:58 -04001209 lbs_deb_leave(LBS_DEB_MAIN);
1210 return 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001211}
1212
Andres Salomon4fb910f2007-11-20 17:43:45 -05001213static void __exit lbs_exit_module(void)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001214{
Holger Schurig9012b282007-05-25 11:27:16 -04001215 lbs_deb_enter(LBS_DEB_MAIN);
Holger Schurig10078322007-11-15 18:05:47 -05001216 lbs_debugfs_remove();
Holger Schurig9012b282007-05-25 11:27:16 -04001217 lbs_deb_leave(LBS_DEB_MAIN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001218}
1219
Holger Schurig10078322007-11-15 18:05:47 -05001220module_init(lbs_init_module);
1221module_exit(lbs_exit_module);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001222
Holger Schurig084708b2007-05-25 12:37:58 -04001223MODULE_DESCRIPTION("Libertas WLAN Driver Library");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001224MODULE_AUTHOR("Marvell International Ltd.");
1225MODULE_LICENSE("GPL");