blob: 2bcfa745524a68197c4139f7bcc3f4a8fb9d840c [file] [log] [blame]
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001/**
2 * This file contains the major functions in WLAN
3 * driver. It includes init, exit, open, close and main
4 * thread etc..
5 */
6
Holger Schuriga46c6412007-05-25 11:32:07 -04007#include <linux/moduleparam.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02008#include <linux/delay.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02009#include <linux/etherdevice.h>
10#include <linux/netdevice.h>
11#include <linux/if_arp.h>
Dan Williamsfe336152007-08-02 11:32:25 -040012#include <linux/kthread.h>
Holger Schurig7919b892008-04-01 14:50:43 +020013#include <linux/kfifo.h>
David Woodhouse75bf45a2008-05-20 13:32:45 +010014#include <linux/stddef.h>
Johannes Berg2c7060022008-10-30 22:09:54 +010015#include <linux/ieee80211.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020016#include <net/iw_handler.h>
Holger Schurigff9fc792009-10-06 16:31:54 +020017#include <net/cfg80211.h>
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020018
19#include "host.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020020#include "decl.h"
21#include "dev.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020022#include "wext.h"
Holger Schurigff9fc792009-10-06 16:31:54 +020023#include "cfg.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020024#include "debugfs.h"
Holger Schurig245bf202008-04-02 16:27:42 +020025#include "scan.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020026#include "assoc.h"
Dan Williams6e66f032007-12-11 12:42:16 -050027#include "cmd.h"
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020028
Dan Williams7856a542007-08-03 09:43:03 -040029#define DRIVER_RELEASE_VERSION "323.p0"
Holger Schurig10078322007-11-15 18:05:47 -050030const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
Dan Williams3ce40232007-05-10 23:03:07 -040031#ifdef DEBUG
32 "-dbg"
33#endif
34 "";
35
Holger Schuriga46c6412007-05-25 11:32:07 -040036
37/* Module parameters */
Holger Schurig10078322007-11-15 18:05:47 -050038unsigned int lbs_debug;
39EXPORT_SYMBOL_GPL(lbs_debug);
40module_param_named(libertas_debug, lbs_debug, int, 0644);
Holger Schuriga46c6412007-05-25 11:32:07 -040041
42
Holger Schurigf539f2e2008-03-26 13:22:11 +010043/* This global structure is used to send the confirm_sleep command as
44 * fast as possible down to the firmware. */
45struct cmd_confirm_sleep confirm_sleep;
46
47
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020048/**
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020049 * the table to keep region code
50 */
Holger Schurig10078322007-11-15 18:05:47 -050051u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020052 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
53
Marcelo Tosatti876c9d32007-02-10 12:25:27 -020054/**
Dan Williams8c512762007-08-02 11:40:45 -040055 * FW rate table. FW refers to rates by their index in this table, not by the
56 * rate value itself. Values of 0x00 are
57 * reserved positions.
58 */
59static u8 fw_data_rates[MAX_RATES] =
60 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
61 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
62};
63
64/**
65 * @brief use index to get the data rate
66 *
67 * @param idx The index of data rate
68 * @return data rate or 0
69 */
Holger Schurig10078322007-11-15 18:05:47 -050070u32 lbs_fw_index_to_data_rate(u8 idx)
Dan Williams8c512762007-08-02 11:40:45 -040071{
72 if (idx >= sizeof(fw_data_rates))
73 idx = 0;
74 return fw_data_rates[idx];
75}
76
77/**
78 * @brief use rate to get the index
79 *
80 * @param rate data rate
81 * @return index or 0
82 */
Holger Schurig10078322007-11-15 18:05:47 -050083u8 lbs_data_rate_to_fw_index(u32 rate)
Dan Williams8c512762007-08-02 11:40:45 -040084{
85 u8 i;
86
87 if (!rate)
88 return 0;
89
90 for (i = 0; i < sizeof(fw_data_rates); i++) {
91 if (rate == fw_data_rates[i])
92 return i;
93 }
94 return 0;
95}
96
Anna Neal6fb53252008-12-09 13:23:45 -080097
David Woodhouse2fd6cfe2007-12-11 17:44:10 -050098static int lbs_add_rtap(struct lbs_private *priv);
99static void lbs_remove_rtap(struct lbs_private *priv);
David Woodhouse7e226272007-12-14 22:53:41 -0500100
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400101
102/**
103 * Get function for sysfs attribute rtap
104 */
Holger Schurig10078322007-11-15 18:05:47 -0500105static ssize_t lbs_rtap_get(struct device *dev,
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400106 struct device_attribute *attr, char * buf)
107{
Kiran Divekarab65f642009-02-19 19:32:39 -0500108 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
David Woodhouseaa21c002007-12-08 20:04:36 +0000109 return snprintf(buf, 5, "0x%X\n", priv->monitormode);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400110}
111
112/**
113 * Set function for sysfs attribute rtap
114 */
Holger Schurig10078322007-11-15 18:05:47 -0500115static ssize_t lbs_rtap_set(struct device *dev,
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400116 struct device_attribute *attr, const char * buf, size_t count)
117{
118 int monitor_mode;
Kiran Divekarab65f642009-02-19 19:32:39 -0500119 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400120
121 sscanf(buf, "%x", &monitor_mode);
Holger Schurigc2b310a2008-03-26 09:57:14 +0100122 if (monitor_mode) {
123 if (priv->monitormode == monitor_mode)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400124 return strlen(buf);
Holger Schurigc2b310a2008-03-26 09:57:14 +0100125 if (!priv->monitormode) {
David Woodhouse8552855f2007-12-10 16:38:18 -0500126 if (priv->infra_open || priv->mesh_open)
127 return -EBUSY;
David Woodhouseaa21c002007-12-08 20:04:36 +0000128 if (priv->mode == IW_MODE_INFRA)
Dan Williams191bb402008-08-21 17:46:18 -0400129 lbs_cmd_80211_deauthenticate(priv,
130 priv->curbssparams.bssid,
131 WLAN_REASON_DEAUTH_LEAVING);
David Woodhouseaa21c002007-12-08 20:04:36 +0000132 else if (priv->mode == IW_MODE_ADHOC)
Dan Williamsf5fe1fd2008-08-21 21:46:59 -0400133 lbs_adhoc_stop(priv);
Holger Schurig10078322007-11-15 18:05:47 -0500134 lbs_add_rtap(priv);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400135 }
David Woodhouseaa21c002007-12-08 20:04:36 +0000136 priv->monitormode = monitor_mode;
Dan Williams3b72b012008-07-29 13:50:39 -0400137 } else {
Holger Schurigc2b310a2008-03-26 09:57:14 +0100138 if (!priv->monitormode)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400139 return strlen(buf);
Holger Schurigc2b310a2008-03-26 09:57:14 +0100140 priv->monitormode = 0;
Holger Schurig10078322007-11-15 18:05:47 -0500141 lbs_remove_rtap(priv);
David Woodhousef86a93e2007-12-08 19:46:19 +0000142
David Woodhouseaa21c002007-12-08 20:04:36 +0000143 if (priv->currenttxskb) {
144 dev_kfree_skb_any(priv->currenttxskb);
145 priv->currenttxskb = NULL;
David Woodhousef86a93e2007-12-08 19:46:19 +0000146 }
147
148 /* Wake queues, command thread, etc. */
149 lbs_host_to_card_done(priv);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400150 }
151
Holger Schurig10078322007-11-15 18:05:47 -0500152 lbs_prepare_and_send_command(priv,
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400153 CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
David Woodhouseaa21c002007-12-08 20:04:36 +0000154 CMD_OPTION_WAITFORRSP, 0, &priv->monitormode);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400155 return strlen(buf);
156}
157
158/**
David Woodhouse23a397a2007-12-11 18:56:42 -0500159 * lbs_rtap attribute to be exported per ethX interface
160 * through sysfs (/sys/class/net/ethX/lbs_rtap)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400161 */
David Woodhouse23a397a2007-12-11 18:56:42 -0500162static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set );
163
164/**
Holger Schurige0e42da2009-11-25 13:10:15 +0100165 * @brief This function opens the ethX interface
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200166 *
167 * @param dev A pointer to net_device structure
David Woodhouse8552855f2007-12-10 16:38:18 -0500168 * @return 0 or -EBUSY if monitor mode active
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200169 */
Holger Schurig10078322007-11-15 18:05:47 -0500170static int lbs_dev_open(struct net_device *dev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200171{
Kiran Divekarab65f642009-02-19 19:32:39 -0500172 struct lbs_private *priv = dev->ml_priv;
David Woodhouse8552855f2007-12-10 16:38:18 -0500173 int ret = 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200174
Holger Schurig61d30022008-01-16 15:59:52 +0100175 lbs_deb_enter(LBS_DEB_NET);
176
David Woodhouse8552855f2007-12-10 16:38:18 -0500177 spin_lock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200178
Holger Schurigc2b310a2008-03-26 09:57:14 +0100179 if (priv->monitormode) {
David Woodhouse8552855f2007-12-10 16:38:18 -0500180 ret = -EBUSY;
181 goto out;
Javier Cardona51d84f52007-05-25 12:06:56 -0400182 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200183
Holger Schurige0e42da2009-11-25 13:10:15 +0100184 priv->infra_open = 1;
David Woodhouse7e226272007-12-14 22:53:41 -0500185
Holger Schurige0e42da2009-11-25 13:10:15 +0100186 if (priv->connect_status == LBS_CONNECTED)
187 netif_carrier_on(dev);
188 else
189 netif_carrier_off(dev);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200190
David Woodhouse8552855f2007-12-10 16:38:18 -0500191 if (!priv->tx_pending_len)
192 netif_wake_queue(dev);
193 out:
Brajesh Dave01d77d82007-11-20 17:44:14 -0500194
David Woodhouse8552855f2007-12-10 16:38:18 -0500195 spin_unlock_irq(&priv->driver_lock);
Holger Schurig61d30022008-01-16 15:59:52 +0100196 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
David Woodhouse8552855f2007-12-10 16:38:18 -0500197 return ret;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200198}
199
200/**
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200201 * @brief This function closes the ethX interface
202 *
203 * @param dev A pointer to net_device structure
204 * @return 0
205 */
David Woodhouse8552855f2007-12-10 16:38:18 -0500206static int lbs_eth_stop(struct net_device *dev)
Holger Schurig78523da2007-05-25 11:49:19 -0400207{
Kiran Divekarab65f642009-02-19 19:32:39 -0500208 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200209
Holger Schurig61d30022008-01-16 15:59:52 +0100210 lbs_deb_enter(LBS_DEB_NET);
211
David Woodhouse8552855f2007-12-10 16:38:18 -0500212 spin_lock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200213 priv->infra_open = 0;
David Woodhouse8552855f2007-12-10 16:38:18 -0500214 netif_stop_queue(dev);
David Woodhouse8552855f2007-12-10 16:38:18 -0500215 spin_unlock_irq(&priv->driver_lock);
Holger Schurig61d30022008-01-16 15:59:52 +0100216
David Woodhouse75bf45a2008-05-20 13:32:45 +0100217 schedule_work(&priv->mcast_work);
218
Holger Schurig61d30022008-01-16 15:59:52 +0100219 lbs_deb_leave(LBS_DEB_NET);
David Woodhouse8552855f2007-12-10 16:38:18 -0500220 return 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200221}
222
Holger Schurig10078322007-11-15 18:05:47 -0500223static void lbs_tx_timeout(struct net_device *dev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200224{
Kiran Divekarab65f642009-02-19 19:32:39 -0500225 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200226
Holger Schurig9012b282007-05-25 11:27:16 -0400227 lbs_deb_enter(LBS_DEB_TX);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200228
Holger Schurig9012b282007-05-25 11:27:16 -0400229 lbs_pr_err("tx watch dog timeout\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200230
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200231 dev->trans_start = jiffies;
232
Holger Schurig7919b892008-04-01 14:50:43 +0200233 if (priv->currenttxskb)
234 lbs_send_tx_feedback(priv, 0);
235
David Woodhousea63b22b2007-12-08 20:56:44 +0000236 /* XX: Shouldn't we also call into the hw-specific driver
237 to kick it somehow? */
238 lbs_host_to_card_done(priv);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200239
David Woodhouse354eca92007-12-17 19:22:40 -0500240 /* More often than not, this actually happens because the
241 firmware has crapped itself -- rather than just a very
242 busy medium. So send a harmless command, and if/when
243 _that_ times out, we'll kick it in the head. */
244 lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
245 0, 0, NULL);
246
Holger Schurig9012b282007-05-25 11:27:16 -0400247 lbs_deb_leave(LBS_DEB_TX);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200248}
249
David Woodhousee775ed72007-12-06 14:36:11 +0000250void lbs_host_to_card_done(struct lbs_private *priv)
251{
David Woodhousea63b22b2007-12-08 20:56:44 +0000252 unsigned long flags;
253
Holger Schurig61d30022008-01-16 15:59:52 +0100254 lbs_deb_enter(LBS_DEB_THREAD);
255
David Woodhousea63b22b2007-12-08 20:56:44 +0000256 spin_lock_irqsave(&priv->driver_lock, flags);
David Woodhousee775ed72007-12-06 14:36:11 +0000257
258 priv->dnld_sent = DNLD_RES_RECEIVED;
259
260 /* Wake main thread if commands are pending */
Amitkumar Karwar49125452009-09-30 20:04:38 -0700261 if (!priv->cur_cmd || priv->tx_pending_len > 0) {
262 if (!priv->wakeup_dev_required)
263 wake_up_interruptible(&priv->waitq);
264 }
David Woodhousee775ed72007-12-06 14:36:11 +0000265
David Woodhousea63b22b2007-12-08 20:56:44 +0000266 spin_unlock_irqrestore(&priv->driver_lock, flags);
Holger Schurig61d30022008-01-16 15:59:52 +0100267 lbs_deb_leave(LBS_DEB_THREAD);
David Woodhousee775ed72007-12-06 14:36:11 +0000268}
269EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
270
Holger Schurige0e42da2009-11-25 13:10:15 +0100271int lbs_set_mac_address(struct net_device *dev, void *addr)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200272{
273 int ret = 0;
Kiran Divekarab65f642009-02-19 19:32:39 -0500274 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200275 struct sockaddr *phwaddr = addr;
Holger Schurig2af9f032008-03-26 09:58:32 +0100276 struct cmd_ds_802_11_mac_address cmd;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200277
Holger Schurig9012b282007-05-25 11:27:16 -0400278 lbs_deb_enter(LBS_DEB_NET);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200279
Luis Carlos Cobo Rus0a0d08a2007-05-25 23:05:27 -0400280 /* In case it was called from the mesh device */
Holger Schurig2af9f032008-03-26 09:58:32 +0100281 dev = priv->dev;
Luis Carlos Cobo Rus0a0d08a2007-05-25 23:05:27 -0400282
Holger Schurig2af9f032008-03-26 09:58:32 +0100283 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
284 cmd.action = cpu_to_le16(CMD_ACT_SET);
285 memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200286
Holger Schurig2af9f032008-03-26 09:58:32 +0100287 ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200288 if (ret) {
Holger Schurig9012b282007-05-25 11:27:16 -0400289 lbs_deb_net("set MAC address failed\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200290 goto done;
291 }
292
Holger Schurig2af9f032008-03-26 09:58:32 +0100293 memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
294 memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN);
Holger Schurig78523da2007-05-25 11:49:19 -0400295 if (priv->mesh_dev)
Holger Schurig2af9f032008-03-26 09:58:32 +0100296 memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200297
298done:
Holger Schurig9012b282007-05-25 11:27:16 -0400299 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200300 return ret;
301}
302
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200303
David Woodhouse75bf45a2008-05-20 13:32:45 +0100304static inline int mac_in_list(unsigned char *list, int list_len,
305 unsigned char *mac)
306{
307 while (list_len) {
308 if (!memcmp(list, mac, ETH_ALEN))
309 return 1;
310 list += ETH_ALEN;
311 list_len--;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200312 }
David Woodhouse75bf45a2008-05-20 13:32:45 +0100313 return 0;
314}
315
316
317static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd,
318 struct net_device *dev, int nr_addrs)
319{
320 int i = nr_addrs;
321 struct dev_mc_list *mc_list;
David Woodhouse75bf45a2008-05-20 13:32:45 +0100322
323 if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST))
324 return nr_addrs;
325
David S. Millerb9e40852008-07-15 00:15:08 -0700326 netif_addr_lock_bh(dev);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100327 for (mc_list = dev->mc_list; mc_list; mc_list = mc_list->next) {
328 if (mac_in_list(cmd->maclist, nr_addrs, mc_list->dmi_addr)) {
Johannes Berge1749612008-10-27 15:59:26 -0700329 lbs_deb_net("mcast address %s:%pM skipped\n", dev->name,
330 mc_list->dmi_addr);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100331 continue;
332 }
333
334 if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE)
335 break;
336 memcpy(&cmd->maclist[6*i], mc_list->dmi_addr, ETH_ALEN);
Johannes Berge1749612008-10-27 15:59:26 -0700337 lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name,
338 mc_list->dmi_addr);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100339 i++;
340 }
David S. Millerb9e40852008-07-15 00:15:08 -0700341 netif_addr_unlock_bh(dev);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100342 if (mc_list)
343 return -EOVERFLOW;
344
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200345 return i;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200346}
347
David Woodhouse75bf45a2008-05-20 13:32:45 +0100348static void lbs_set_mcast_worker(struct work_struct *work)
349{
350 struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work);
351 struct cmd_ds_mac_multicast_adr mcast_cmd;
352 int dev_flags;
353 int nr_addrs;
354 int old_mac_control = priv->mac_control;
355
356 lbs_deb_enter(LBS_DEB_NET);
357
358 dev_flags = priv->dev->flags;
359 if (priv->mesh_dev)
360 dev_flags |= priv->mesh_dev->flags;
361
362 if (dev_flags & IFF_PROMISC) {
363 priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE;
364 priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
365 CMD_ACT_MAC_MULTICAST_ENABLE);
366 goto out_set_mac_control;
367 } else if (dev_flags & IFF_ALLMULTI) {
368 do_allmulti:
369 priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
370 priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE |
371 CMD_ACT_MAC_MULTICAST_ENABLE);
372 goto out_set_mac_control;
373 }
374
375 /* Once for priv->dev, again for priv->mesh_dev if it exists */
376 nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0);
377 if (nr_addrs >= 0 && priv->mesh_dev)
378 nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs);
379 if (nr_addrs < 0)
380 goto do_allmulti;
381
382 if (nr_addrs) {
383 int size = offsetof(struct cmd_ds_mac_multicast_adr,
384 maclist[6*nr_addrs]);
385
386 mcast_cmd.action = cpu_to_le16(CMD_ACT_SET);
387 mcast_cmd.hdr.size = cpu_to_le16(size);
388 mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs);
389
390 lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size);
391
392 priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE;
393 } else
394 priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE;
395
396 priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE |
397 CMD_ACT_MAC_ALL_MULTICAST_ENABLE);
398 out_set_mac_control:
399 if (priv->mac_control != old_mac_control)
400 lbs_set_mac_control(priv);
401
402 lbs_deb_leave(LBS_DEB_NET);
403}
404
Holger Schurige0e42da2009-11-25 13:10:15 +0100405void lbs_set_multicast_list(struct net_device *dev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200406{
Kiran Divekarab65f642009-02-19 19:32:39 -0500407 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200408
David Woodhouse75bf45a2008-05-20 13:32:45 +0100409 schedule_work(&priv->mcast_work);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200410}
411
412/**
Holger Schurig10078322007-11-15 18:05:47 -0500413 * @brief This function handles the major jobs in the LBS driver.
Holger Schurig9012b282007-05-25 11:27:16 -0400414 * It handles all events generated by firmware, RX data received
415 * from firmware and TX data sent from kernel.
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200416 *
Holger Schurig10078322007-11-15 18:05:47 -0500417 * @param data A pointer to lbs_thread structure
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200418 * @return 0
419 */
Holger Schurig10078322007-11-15 18:05:47 -0500420static int lbs_thread(void *data)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200421{
Dan Williamsfe336152007-08-02 11:32:25 -0400422 struct net_device *dev = data;
Kiran Divekarab65f642009-02-19 19:32:39 -0500423 struct lbs_private *priv = dev->ml_priv;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200424 wait_queue_t wait;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200425
Holger Schurig9012b282007-05-25 11:27:16 -0400426 lbs_deb_enter(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200427
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200428 init_waitqueue_entry(&wait, current);
429
430 for (;;) {
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500431 int shouldsleep;
Holger Schurig7919b892008-04-01 14:50:43 +0200432 u8 resp_idx;
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500433
Holger Schurig7919b892008-04-01 14:50:43 +0200434 lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n",
435 priv->currenttxskb, priv->dnld_sent);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200436
Dan Williamsfe336152007-08-02 11:32:25 -0400437 add_wait_queue(&priv->waitq, &wait);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200438 set_current_state(TASK_INTERRUPTIBLE);
David Woodhouseaa21c002007-12-08 20:04:36 +0000439 spin_lock_irq(&priv->driver_lock);
David Woodhouse59f3e4b2007-12-08 17:42:59 +0000440
David Woodhoused9f88702007-12-13 21:48:00 -0500441 if (kthread_should_stop())
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500442 shouldsleep = 0; /* Bye */
David Woodhoused9f88702007-12-13 21:48:00 -0500443 else if (priv->surpriseremoved)
444 shouldsleep = 1; /* We need to wait until we're _told_ to die */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500445 else if (priv->psstate == PS_STATE_SLEEP)
446 shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */
David Woodhouse2a345092007-12-15 19:33:43 -0500447 else if (priv->cmd_timed_out)
448 shouldsleep = 0; /* Command timed out. Recover */
David Woodhouseb15152a2007-12-11 11:55:37 -0500449 else if (!priv->fw_ready)
450 shouldsleep = 1; /* Firmware not ready. We're waiting for it */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500451 else if (priv->dnld_sent)
452 shouldsleep = 1; /* Something is en route to the device already */
David Woodhouse2eb188a2007-12-09 23:54:27 -0500453 else if (priv->tx_pending_len > 0)
454 shouldsleep = 0; /* We've a packet to send */
Holger Schurigef707b82008-05-23 16:04:13 +0200455 else if (priv->resp_len[priv->resp_idx])
456 shouldsleep = 0; /* We have a command response */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500457 else if (priv->cur_cmd)
458 shouldsleep = 1; /* Can't send a command; one already running */
Amitkumar Karwar49125452009-09-30 20:04:38 -0700459 else if (!list_empty(&priv->cmdpendingq) &&
460 !(priv->wakeup_dev_required))
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500461 shouldsleep = 0; /* We have a command to send */
Stefani Seibolde64c0262009-12-21 14:37:28 -0800462 else if (kfifo_len(&priv->event_fifo))
Holger Schurig7919b892008-04-01 14:50:43 +0200463 shouldsleep = 0; /* We have an event to process */
David Woodhouseb8d40bc2007-12-09 23:44:43 -0500464 else
465 shouldsleep = 1; /* No command */
466
467 if (shouldsleep) {
Holger Schurig7919b892008-04-01 14:50:43 +0200468 lbs_deb_thread("sleeping, connect_status %d, "
Holger Schurig5f505d92008-04-30 10:50:07 +0200469 "psmode %d, psstate %d\n",
Holger Schurig7919b892008-04-01 14:50:43 +0200470 priv->connect_status,
471 priv->psmode, priv->psstate);
David Woodhouseaa21c002007-12-08 20:04:36 +0000472 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200473 schedule();
474 } else
David Woodhouseaa21c002007-12-08 20:04:36 +0000475 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200476
Holger Schurig7919b892008-04-01 14:50:43 +0200477 lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n",
478 priv->currenttxskb, priv->dnld_sent);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200479
480 set_current_state(TASK_RUNNING);
Dan Williamsfe336152007-08-02 11:32:25 -0400481 remove_wait_queue(&priv->waitq, &wait);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200482
Holger Schurig7919b892008-04-01 14:50:43 +0200483 lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n",
484 priv->currenttxskb, priv->dnld_sent);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200485
David Woodhoused9f88702007-12-13 21:48:00 -0500486 if (kthread_should_stop()) {
Holger Schurig7919b892008-04-01 14:50:43 +0200487 lbs_deb_thread("break from main thread\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200488 break;
489 }
490
David Woodhoused9f88702007-12-13 21:48:00 -0500491 if (priv->surpriseremoved) {
492 lbs_deb_thread("adapter removed; waiting to die...\n");
493 continue;
494 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200495
Holger Schurig7919b892008-04-01 14:50:43 +0200496 lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
497 priv->currenttxskb, priv->dnld_sent);
498
Holger Schurig7919b892008-04-01 14:50:43 +0200499 /* Process any pending command response */
Holger Schuriga01f5452008-06-04 11:10:40 +0200500 spin_lock_irq(&priv->driver_lock);
Holger Schurig7919b892008-04-01 14:50:43 +0200501 resp_idx = priv->resp_idx;
502 if (priv->resp_len[resp_idx]) {
David Woodhouseaa21c002007-12-08 20:04:36 +0000503 spin_unlock_irq(&priv->driver_lock);
Holger Schurig7919b892008-04-01 14:50:43 +0200504 lbs_process_command_response(priv,
505 priv->resp_buf[resp_idx],
506 priv->resp_len[resp_idx]);
David Woodhouseaa21c002007-12-08 20:04:36 +0000507 spin_lock_irq(&priv->driver_lock);
Holger Schurig7919b892008-04-01 14:50:43 +0200508 priv->resp_len[resp_idx] = 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200509 }
Holger Schurig7919b892008-04-01 14:50:43 +0200510 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200511
Amitkumar Karwar49125452009-09-30 20:04:38 -0700512 /* Process hardware events, e.g. card removed, link lost */
513 spin_lock_irq(&priv->driver_lock);
Stefani Seibolde64c0262009-12-21 14:37:28 -0800514 while (kfifo_len(&priv->event_fifo)) {
Amitkumar Karwar49125452009-09-30 20:04:38 -0700515 u32 event;
Stefani Seibold7acd72e2009-12-21 14:37:28 -0800516
517 kfifo_out(&priv->event_fifo, (unsigned char *) &event,
Amitkumar Karwar49125452009-09-30 20:04:38 -0700518 sizeof(event));
519 spin_unlock_irq(&priv->driver_lock);
520 lbs_process_event(priv, event);
521 spin_lock_irq(&priv->driver_lock);
522 }
523 spin_unlock_irq(&priv->driver_lock);
524
525 if (priv->wakeup_dev_required) {
526 lbs_deb_thread("Waking up device...\n");
527 /* Wake up device */
528 if (priv->exit_deep_sleep(priv))
529 lbs_deb_thread("Wakeup device failed\n");
530 continue;
531 }
532
Holger Schurig7919b892008-04-01 14:50:43 +0200533 /* command timeout stuff */
David Woodhouse2a345092007-12-15 19:33:43 -0500534 if (priv->cmd_timed_out && priv->cur_cmd) {
535 struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
536
Holger Schurig57962f02008-05-14 16:30:28 +0200537 if (++priv->nr_retries > 3) {
538 lbs_pr_info("Excessive timeouts submitting "
539 "command 0x%04x\n",
540 le16_to_cpu(cmdnode->cmdbuf->command));
David Woodhouse2a345092007-12-15 19:33:43 -0500541 lbs_complete_command(priv, cmdnode, -ETIMEDOUT);
542 priv->nr_retries = 0;
Holger Schurigb43441a2008-05-23 10:07:56 +0200543 if (priv->reset_card)
David Woodhouseedf5dab2008-05-20 16:43:31 +0100544 priv->reset_card(priv);
David Woodhouse2a345092007-12-15 19:33:43 -0500545 } else {
546 priv->cur_cmd = NULL;
Brian Cavagnolo02969d22008-05-13 13:54:59 +0100547 priv->dnld_sent = DNLD_RES_RECEIVED;
Holger Schurig57962f02008-05-14 16:30:28 +0200548 lbs_pr_info("requeueing command 0x%04x due "
549 "to timeout (#%d)\n",
550 le16_to_cpu(cmdnode->cmdbuf->command),
551 priv->nr_retries);
David Woodhouse2a345092007-12-15 19:33:43 -0500552
553 /* Stick it back at the _top_ of the pending queue
554 for immediate resubmission */
555 list_add(&cmdnode->list, &priv->cmdpendingq);
556 }
557 }
558 priv->cmd_timed_out = 0;
559
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200560
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200561
David Woodhouseb15152a2007-12-11 11:55:37 -0500562 if (!priv->fw_ready)
563 continue;
564
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200565 /* Check if we need to confirm Sleep Request received previously */
David Woodhouseaa21c002007-12-08 20:04:36 +0000566 if (priv->psstate == PS_STATE_PRE_SLEEP &&
567 !priv->dnld_sent && !priv->cur_cmd) {
568 if (priv->connect_status == LBS_CONNECTED) {
Holger Schurig7919b892008-04-01 14:50:43 +0200569 lbs_deb_thread("pre-sleep, currenttxskb %p, "
570 "dnld_sent %d, cur_cmd %p\n",
571 priv->currenttxskb, priv->dnld_sent,
572 priv->cur_cmd);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200573
Holger Schurigd4ff0ef2008-03-19 14:25:18 +0100574 lbs_ps_confirm_sleep(priv);
David Woodhouse59f3e4b2007-12-08 17:42:59 +0000575 } else {
576 /* workaround for firmware sending
577 * deauth/linkloss event immediately
578 * after sleep request; remove this
579 * after firmware fixes it
580 */
David Woodhouseaa21c002007-12-08 20:04:36 +0000581 priv->psstate = PS_STATE_AWAKE;
Holger Schurig7919b892008-04-01 14:50:43 +0200582 lbs_pr_alert("ignore PS_SleepConfirm in "
583 "non-connected state\n");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200584 }
585 }
586
587 /* The PS state is changed during processing of Sleep Request
588 * event above
589 */
David Woodhouseaa21c002007-12-08 20:04:36 +0000590 if ((priv->psstate == PS_STATE_SLEEP) ||
591 (priv->psstate == PS_STATE_PRE_SLEEP))
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200592 continue;
593
Amitkumar Karwar49125452009-09-30 20:04:38 -0700594 if (priv->is_deep_sleep)
595 continue;
596
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200597 /* Execute the next command */
David Woodhouseaa21c002007-12-08 20:04:36 +0000598 if (!priv->dnld_sent && !priv->cur_cmd)
Holger Schurig10078322007-11-15 18:05:47 -0500599 lbs_execute_next_command(priv);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200600
601 /* Wake-up command waiters which can't sleep in
Holger Schurig10078322007-11-15 18:05:47 -0500602 * lbs_prepare_and_send_command
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200603 */
David Woodhouseaa21c002007-12-08 20:04:36 +0000604 if (!list_empty(&priv->cmdpendingq))
605 wake_up_all(&priv->cmd_pending);
David Woodhouse2eb188a2007-12-09 23:54:27 -0500606
607 spin_lock_irq(&priv->driver_lock);
608 if (!priv->dnld_sent && priv->tx_pending_len > 0) {
609 int ret = priv->hw_host_to_card(priv, MVMS_DAT,
610 priv->tx_pending_buf,
611 priv->tx_pending_len);
612 if (ret) {
613 lbs_deb_tx("host_to_card failed %d\n", ret);
614 priv->dnld_sent = DNLD_RES_RECEIVED;
615 }
616 priv->tx_pending_len = 0;
617 if (!priv->currenttxskb) {
618 /* We can wake the queues immediately if we aren't
619 waiting for TX feedback */
620 if (priv->connect_status == LBS_CONNECTED)
621 netif_wake_queue(priv->dev);
622 if (priv->mesh_dev &&
623 priv->mesh_connect_status == LBS_CONNECTED)
624 netif_wake_queue(priv->mesh_dev);
625 }
626 }
627 spin_unlock_irq(&priv->driver_lock);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200628 }
629
David Woodhouseaa21c002007-12-08 20:04:36 +0000630 del_timer(&priv->command_timer);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700631 del_timer(&priv->auto_deepsleep_timer);
David Woodhouseaa21c002007-12-08 20:04:36 +0000632 wake_up_all(&priv->cmd_pending);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200633
Holger Schurig9012b282007-05-25 11:27:16 -0400634 lbs_deb_leave(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200635 return 0;
636}
637
David Woodhouseab25eca2007-12-12 17:38:56 -0500638static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy,
639 struct cmd_header *cmd)
640{
Holger Schurig61d30022008-01-16 15:59:52 +0100641 lbs_deb_enter(LBS_DEB_FW);
David Woodhouseab25eca2007-12-12 17:38:56 -0500642
643 netif_device_detach(priv->dev);
644 if (priv->mesh_dev)
645 netif_device_detach(priv->mesh_dev);
646
647 priv->fw_ready = 0;
Holger Schurig61d30022008-01-16 15:59:52 +0100648 lbs_deb_leave(LBS_DEB_FW);
David Woodhouseab25eca2007-12-12 17:38:56 -0500649 return 0;
650}
651
David Woodhouseab25eca2007-12-12 17:38:56 -0500652int lbs_suspend(struct lbs_private *priv)
653{
654 struct cmd_header cmd;
655 int ret;
656
Holger Schurig61d30022008-01-16 15:59:52 +0100657 lbs_deb_enter(LBS_DEB_FW);
658
David Woodhouse506e9022007-12-12 20:06:06 -0500659 if (priv->wol_criteria == 0xffffffff) {
660 lbs_pr_info("Suspend attempt without configuring wake params!\n");
661 return -EINVAL;
662 }
663
David Woodhouseab25eca2007-12-12 17:38:56 -0500664 memset(&cmd, 0, sizeof(cmd));
David Woodhouse7e226272007-12-14 22:53:41 -0500665
David Woodhouseab25eca2007-12-12 17:38:56 -0500666 ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd,
667 sizeof(cmd), lbs_suspend_callback, 0);
668 if (ret)
669 lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret);
670
Holger Schurig61d30022008-01-16 15:59:52 +0100671 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
David Woodhouseab25eca2007-12-12 17:38:56 -0500672 return ret;
673}
674EXPORT_SYMBOL_GPL(lbs_suspend);
675
Holger Schuriga63e5cb2008-04-30 10:50:39 +0200676void lbs_resume(struct lbs_private *priv)
David Woodhouseab25eca2007-12-12 17:38:56 -0500677{
Holger Schurig61d30022008-01-16 15:59:52 +0100678 lbs_deb_enter(LBS_DEB_FW);
679
David Woodhouseab25eca2007-12-12 17:38:56 -0500680 priv->fw_ready = 1;
681
682 /* Firmware doesn't seem to give us RX packets any more
683 until we send it some command. Might as well update */
684 lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
685 0, 0, NULL);
686
687 netif_device_attach(priv->dev);
688 if (priv->mesh_dev)
689 netif_device_attach(priv->mesh_dev);
690
Holger Schurig61d30022008-01-16 15:59:52 +0100691 lbs_deb_leave(LBS_DEB_FW);
David Woodhouseab25eca2007-12-12 17:38:56 -0500692}
693EXPORT_SYMBOL_GPL(lbs_resume);
694
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200695/**
Colin McCabeb4836592009-01-02 19:00:22 -0800696 * @brief This function gets the HW spec from the firmware and sets
697 * some basic parameters.
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400698 *
Holger Schurig69f90322007-11-23 15:43:44 +0100699 * @param priv A pointer to struct lbs_private structure
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400700 * @return 0 or -1
701 */
Holger Schurig69f90322007-11-23 15:43:44 +0100702static int lbs_setup_firmware(struct lbs_private *priv)
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400703{
704 int ret = -1;
Dan Williams87c8c722008-08-19 15:15:35 -0400705 s16 curlevel = 0, minlevel = 0, maxlevel = 0;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400706
707 lbs_deb_enter(LBS_DEB_FW);
708
Dan Williams87c8c722008-08-19 15:15:35 -0400709 /* Read MAC address from firmware */
David Woodhouseaa21c002007-12-08 20:04:36 +0000710 memset(priv->current_addr, 0xff, ETH_ALEN);
Dan Williams6e66f032007-12-11 12:42:16 -0500711 ret = lbs_update_hw_spec(priv);
Holger Schurigef85ad52008-05-14 16:27:18 +0200712 if (ret)
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400713 goto done;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400714
Dan Williams87c8c722008-08-19 15:15:35 -0400715 /* Read power levels if available */
716 ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel);
717 if (ret == 0) {
718 priv->txpower_cur = curlevel;
719 priv->txpower_min = minlevel;
720 priv->txpower_max = maxlevel;
721 }
722
Holger Schurigd9e97782008-03-12 16:06:43 +0100723 lbs_set_mac_control(priv);
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400724done:
725 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
726 return ret;
727}
728
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400729/**
730 * This function handles the timeout of command sending.
731 * It will re-send the same command again.
732 */
733static void command_timer_fn(unsigned long data)
734{
Holger Schurig69f90322007-11-23 15:43:44 +0100735 struct lbs_private *priv = (struct lbs_private *)data;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400736 unsigned long flags;
737
Holger Schurig61d30022008-01-16 15:59:52 +0100738 lbs_deb_enter(LBS_DEB_CMD);
David Woodhouseaa21c002007-12-08 20:04:36 +0000739 spin_lock_irqsave(&priv->driver_lock, flags);
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400740
Holger Schurig57962f02008-05-14 16:30:28 +0200741 if (!priv->cur_cmd)
David Woodhouse2a345092007-12-15 19:33:43 -0500742 goto out;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400743
Holger Schurig57962f02008-05-14 16:30:28 +0200744 lbs_pr_info("command 0x%04x timed out\n",
745 le16_to_cpu(priv->cur_cmd->cmdbuf->command));
David Woodhouse2a345092007-12-15 19:33:43 -0500746
747 priv->cmd_timed_out = 1;
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400748 wake_up_interruptible(&priv->waitq);
Holger Schurig61d30022008-01-16 15:59:52 +0100749out:
David Woodhouse2a345092007-12-15 19:33:43 -0500750 spin_unlock_irqrestore(&priv->driver_lock, flags);
Holger Schurig61d30022008-01-16 15:59:52 +0100751 lbs_deb_leave(LBS_DEB_CMD);
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400752}
753
Amitkumar Karwar49125452009-09-30 20:04:38 -0700754/**
755 * This function put the device back to deep sleep mode when timer expires
756 * and no activity (command, event, data etc.) is detected.
757 */
758static void auto_deepsleep_timer_fn(unsigned long data)
759{
760 struct lbs_private *priv = (struct lbs_private *)data;
761 int ret;
762
763 lbs_deb_enter(LBS_DEB_CMD);
764
765 if (priv->is_activity_detected) {
766 priv->is_activity_detected = 0;
767 } else {
768 if (priv->is_auto_deep_sleep_enabled &&
769 (!priv->wakeup_dev_required) &&
770 (priv->connect_status != LBS_CONNECTED)) {
771 lbs_deb_main("Entering auto deep sleep mode...\n");
772 ret = lbs_prepare_and_send_command(priv,
773 CMD_802_11_DEEP_SLEEP, 0,
774 0, 0, NULL);
Amitkumar Karwarc0bbd572009-10-08 19:38:45 -0700775 if (ret)
776 lbs_pr_err("Enter Deep Sleep command failed\n");
Amitkumar Karwar49125452009-09-30 20:04:38 -0700777 }
778 }
779 mod_timer(&priv->auto_deepsleep_timer , jiffies +
780 (priv->auto_deep_sleep_timeout * HZ)/1000);
781 lbs_deb_leave(LBS_DEB_CMD);
782}
783
784int lbs_enter_auto_deep_sleep(struct lbs_private *priv)
785{
786 lbs_deb_enter(LBS_DEB_SDIO);
787
788 priv->is_auto_deep_sleep_enabled = 1;
789 if (priv->is_deep_sleep)
790 priv->wakeup_dev_required = 1;
791 mod_timer(&priv->auto_deepsleep_timer ,
792 jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000);
793
794 lbs_deb_leave(LBS_DEB_SDIO);
795 return 0;
796}
797
798int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
799{
800 lbs_deb_enter(LBS_DEB_SDIO);
801
802 priv->is_auto_deep_sleep_enabled = 0;
803 priv->auto_deep_sleep_timeout = 0;
804 del_timer(&priv->auto_deepsleep_timer);
805
806 lbs_deb_leave(LBS_DEB_SDIO);
807 return 0;
808}
809
Holger Schurige2268682008-01-28 17:26:28 +0100810static void lbs_sync_channel_worker(struct work_struct *work)
811{
812 struct lbs_private *priv = container_of(work, struct lbs_private,
813 sync_channel);
814
815 lbs_deb_enter(LBS_DEB_MAIN);
816 if (lbs_update_channel(priv))
817 lbs_pr_info("Channel synchronization failed.");
818 lbs_deb_leave(LBS_DEB_MAIN);
819}
820
821
Holger Schurig69f90322007-11-23 15:43:44 +0100822static int lbs_init_adapter(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -0400823{
Dan Williams954ee162007-08-20 11:43:25 -0400824 size_t bufsize;
825 int i, ret = 0;
826
Holger Schurig61d30022008-01-16 15:59:52 +0100827 lbs_deb_enter(LBS_DEB_MAIN);
828
Dan Williams954ee162007-08-20 11:43:25 -0400829 /* Allocate buffer to store the BSSID list */
830 bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
David Woodhouseaa21c002007-12-08 20:04:36 +0000831 priv->networks = kzalloc(bufsize, GFP_KERNEL);
832 if (!priv->networks) {
Dan Williams954ee162007-08-20 11:43:25 -0400833 lbs_pr_err("Out of memory allocating beacons\n");
834 ret = -1;
835 goto out;
836 }
837
838 /* Initialize scan result lists */
David Woodhouseaa21c002007-12-08 20:04:36 +0000839 INIT_LIST_HEAD(&priv->network_free_list);
840 INIT_LIST_HEAD(&priv->network_list);
Dan Williams954ee162007-08-20 11:43:25 -0400841 for (i = 0; i < MAX_NETWORK_COUNT; i++) {
David Woodhouseaa21c002007-12-08 20:04:36 +0000842 list_add_tail(&priv->networks[i].list,
843 &priv->network_free_list);
Dan Williams954ee162007-08-20 11:43:25 -0400844 }
845
David Woodhouseaa21c002007-12-08 20:04:36 +0000846 memset(priv->current_addr, 0xff, ETH_ALEN);
Dan Williams954ee162007-08-20 11:43:25 -0400847
David Woodhouseaa21c002007-12-08 20:04:36 +0000848 priv->connect_status = LBS_DISCONNECTED;
849 priv->mesh_connect_status = LBS_DISCONNECTED;
850 priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
851 priv->mode = IW_MODE_INFRA;
Holger Schurigc14951f2009-10-22 15:30:50 +0200852 priv->channel = DEFAULT_AD_HOC_CHANNEL;
Holger Schurigd9e97782008-03-12 16:06:43 +0100853 priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
Dan Williamsd5db2df2008-08-21 17:51:07 -0400854 priv->radio_on = 1;
Javier Cardona85319f92008-05-24 10:59:49 +0100855 priv->enablehwauto = 1;
David Woodhouseaa21c002007-12-08 20:04:36 +0000856 priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
857 priv->psmode = LBS802_11POWERMODECAM;
858 priv->psstate = PS_STATE_FULL_POWER;
Amitkumar Karwar49125452009-09-30 20:04:38 -0700859 priv->is_deep_sleep = 0;
860 priv->is_auto_deep_sleep_enabled = 0;
861 priv->wakeup_dev_required = 0;
862 init_waitqueue_head(&priv->ds_awake_q);
Dan Williams954ee162007-08-20 11:43:25 -0400863
David Woodhouseaa21c002007-12-08 20:04:36 +0000864 mutex_init(&priv->lock);
Dan Williams954ee162007-08-20 11:43:25 -0400865
David Woodhouseaa21c002007-12-08 20:04:36 +0000866 setup_timer(&priv->command_timer, command_timer_fn,
Holger Schurig61d30022008-01-16 15:59:52 +0100867 (unsigned long)priv);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700868 setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn,
869 (unsigned long)priv);
Dan Williams954ee162007-08-20 11:43:25 -0400870
David Woodhouseaa21c002007-12-08 20:04:36 +0000871 INIT_LIST_HEAD(&priv->cmdfreeq);
872 INIT_LIST_HEAD(&priv->cmdpendingq);
Dan Williams954ee162007-08-20 11:43:25 -0400873
David Woodhouseaa21c002007-12-08 20:04:36 +0000874 spin_lock_init(&priv->driver_lock);
875 init_waitqueue_head(&priv->cmd_pending);
Dan Williams954ee162007-08-20 11:43:25 -0400876
877 /* Allocate the command buffers */
Holger Schurig10078322007-11-15 18:05:47 -0500878 if (lbs_allocate_cmd_buffer(priv)) {
Dan Williams954ee162007-08-20 11:43:25 -0400879 lbs_pr_err("Out of memory allocating command buffers\n");
Holger Schurig7919b892008-04-01 14:50:43 +0200880 ret = -ENOMEM;
881 goto out;
882 }
883 priv->resp_idx = 0;
884 priv->resp_len[0] = priv->resp_len[1] = 0;
885
886 /* Create the event FIFO */
Stefani Seiboldc1e13f22009-12-21 14:37:27 -0800887 ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL);
Stefani Seibold45465482009-12-21 14:37:26 -0800888 if (ret) {
Holger Schurig7919b892008-04-01 14:50:43 +0200889 lbs_pr_err("Out of memory allocating event FIFO buffer\n");
Holger Schurig7919b892008-04-01 14:50:43 +0200890 goto out;
Dan Williams954ee162007-08-20 11:43:25 -0400891 }
892
893out:
Holger Schurig61d30022008-01-16 15:59:52 +0100894 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
895
Dan Williams954ee162007-08-20 11:43:25 -0400896 return ret;
897}
898
Holger Schurig69f90322007-11-23 15:43:44 +0100899static void lbs_free_adapter(struct lbs_private *priv)
Holger Schurigac558ca2007-08-02 11:49:06 -0400900{
Holger Schurig61d30022008-01-16 15:59:52 +0100901 lbs_deb_enter(LBS_DEB_MAIN);
902
Holger Schurig10078322007-11-15 18:05:47 -0500903 lbs_free_cmd_buffer(priv);
Stefani Seibold45465482009-12-21 14:37:26 -0800904 kfifo_free(&priv->event_fifo);
David Woodhouseaa21c002007-12-08 20:04:36 +0000905 del_timer(&priv->command_timer);
Amitkumar Karwar49125452009-09-30 20:04:38 -0700906 del_timer(&priv->auto_deepsleep_timer);
David Woodhouseaa21c002007-12-08 20:04:36 +0000907 kfree(priv->networks);
908 priv->networks = NULL;
Holger Schurig61d30022008-01-16 15:59:52 +0100909
910 lbs_deb_leave(LBS_DEB_MAIN);
Holger Schurigac558ca2007-08-02 11:49:06 -0400911}
912
Stephen Hemmingerf02abf12009-03-20 19:36:37 +0000913static const struct net_device_ops lbs_netdev_ops = {
914 .ndo_open = lbs_dev_open,
915 .ndo_stop = lbs_eth_stop,
916 .ndo_start_xmit = lbs_hard_start_xmit,
917 .ndo_set_mac_address = lbs_set_mac_address,
918 .ndo_tx_timeout = lbs_tx_timeout,
919 .ndo_set_multicast_list = lbs_set_multicast_list,
920 .ndo_change_mtu = eth_change_mtu,
921 .ndo_validate_addr = eth_validate_addr,
922};
923
Holger Schurig1df4e8f2007-08-02 11:45:12 -0400924/**
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200925 * @brief This function adds the card. it will probe the
Holger Schurig10078322007-11-15 18:05:47 -0500926 * card, allocate the lbs_priv and initialize the device.
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200927 *
928 * @param card A pointer to card
Holger Schurig69f90322007-11-23 15:43:44 +0100929 * @return A pointer to struct lbs_private structure
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200930 */
Holger Schurig69f90322007-11-23 15:43:44 +0100931struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200932{
Holger Schurigff9fc792009-10-06 16:31:54 +0200933 struct net_device *dev;
934 struct wireless_dev *wdev;
Holger Schurig69f90322007-11-23 15:43:44 +0100935 struct lbs_private *priv = NULL;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200936
Holger Schurig61d30022008-01-16 15:59:52 +0100937 lbs_deb_enter(LBS_DEB_MAIN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200938
939 /* Allocate an Ethernet device and register it */
Holger Schurigff9fc792009-10-06 16:31:54 +0200940 wdev = lbs_cfg_alloc(dmdev);
941 if (IS_ERR(wdev)) {
942 lbs_pr_err("cfg80211 init failed\n");
Dan Williams954ee162007-08-20 11:43:25 -0400943 goto done;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200944 }
Holger Schurigff9fc792009-10-06 16:31:54 +0200945 /* TODO? */
946 wdev->iftype = NL80211_IFTYPE_STATION;
947 priv = wdev_priv(wdev);
948 priv->wdev = wdev;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200949
Holger Schurig10078322007-11-15 18:05:47 -0500950 if (lbs_init_adapter(priv)) {
Dan Williams954ee162007-08-20 11:43:25 -0400951 lbs_pr_err("failed to initialize adapter structure.\n");
Holger Schurigff9fc792009-10-06 16:31:54 +0200952 goto err_wdev;
Dan Williams954ee162007-08-20 11:43:25 -0400953 }
954
Holger Schurigff9fc792009-10-06 16:31:54 +0200955 //TODO? dev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES);
956 dev = alloc_netdev(0, "wlan%d", ether_setup);
957 if (!dev) {
958 dev_err(dmdev, "no memory for network device instance\n");
959 goto err_adapter;
960 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200961
Holger Schurigff9fc792009-10-06 16:31:54 +0200962 dev->ieee80211_ptr = wdev;
963 dev->ml_priv = priv;
964 SET_NETDEV_DEV(dev, dmdev);
965 wdev->netdev = dev;
966 priv->dev = dev;
967
Stephen Hemmingerf02abf12009-03-20 19:36:37 +0000968 dev->netdev_ops = &lbs_netdev_ops;
Holger Schurigfb3dddf2007-05-25 11:58:22 -0400969 dev->watchdog_timeo = 5 * HZ;
Holger Schurig10078322007-11-15 18:05:47 -0500970 dev->ethtool_ops = &lbs_ethtool_ops;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200971#ifdef WIRELESS_EXT
Stephen Hemmingerf02abf12009-03-20 19:36:37 +0000972 dev->wireless_handlers = &lbs_handler_def;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200973#endif
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200974 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200975
Holger Schurigff9fc792009-10-06 16:31:54 +0200976
977 // TODO: kzalloc + iwm_init_default_profile(iwm, iwm->umac_profile); ??
978
979
980 priv->card = card;
Holger Schurigff9fc792009-10-06 16:31:54 +0200981 priv->infra_open = 0;
982
Dan Williams7732ca42007-05-25 13:13:25 -0400983
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -0400984 priv->rtap_net_dev = NULL;
Daniel Mackc00552c2009-08-11 16:09:34 +0200985 strcpy(dev->name, "wlan%d");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200986
Dan Williamsfe336152007-08-02 11:32:25 -0400987 lbs_deb_thread("Starting main thread...\n");
988 init_waitqueue_head(&priv->waitq);
Holger Schurig10078322007-11-15 18:05:47 -0500989 priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
Dan Williamsfe336152007-08-02 11:32:25 -0400990 if (IS_ERR(priv->main_thread)) {
991 lbs_deb_thread("Error creating main thread.\n");
Holger Schurigff9fc792009-10-06 16:31:54 +0200992 goto err_ndev;
Dan Williamsfe336152007-08-02 11:32:25 -0400993 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -0200994
Holger Schurig10078322007-11-15 18:05:47 -0500995 priv->work_thread = create_singlethread_workqueue("lbs_worker");
996 INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
997 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
David Woodhouse75bf45a2008-05-20 13:32:45 +0100998 INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
Holger Schurige2268682008-01-28 17:26:28 +0100999 INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001000
Holger Schurige0e42da2009-11-25 13:10:15 +01001001 priv->mesh_open = 0;
David Woodhouse23a397a2007-12-11 18:56:42 -05001002 sprintf(priv->mesh_ssid, "mesh");
1003 priv->mesh_ssid_len = 4;
1004
David Woodhouse506e9022007-12-12 20:06:06 -05001005 priv->wol_criteria = 0xffffffff;
1006 priv->wol_gpio = 0xff;
1007
Dan Williams954ee162007-08-20 11:43:25 -04001008 goto done;
1009
Holger Schurigff9fc792009-10-06 16:31:54 +02001010 err_ndev:
Dan Williams954ee162007-08-20 11:43:25 -04001011 free_netdev(dev);
Holger Schurigff9fc792009-10-06 16:31:54 +02001012
1013 err_adapter:
1014 lbs_free_adapter(priv);
1015
1016 err_wdev:
1017 lbs_cfg_free(priv);
1018
Dan Williams954ee162007-08-20 11:43:25 -04001019 priv = NULL;
1020
1021done:
Holger Schurig61d30022008-01-16 15:59:52 +01001022 lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv);
Dan Williams954ee162007-08-20 11:43:25 -04001023 return priv;
1024}
Holger Schurig10078322007-11-15 18:05:47 -05001025EXPORT_SYMBOL_GPL(lbs_add_card);
Dan Williams954ee162007-08-20 11:43:25 -04001026
1027
Holger Schuriga63e5cb2008-04-30 10:50:39 +02001028void lbs_remove_card(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -04001029{
Dan Williams954ee162007-08-20 11:43:25 -04001030 struct net_device *dev = priv->dev;
Dan Williams954ee162007-08-20 11:43:25 -04001031
1032 lbs_deb_enter(LBS_DEB_MAIN);
1033
David Woodhouse23a397a2007-12-11 18:56:42 -05001034 lbs_remove_mesh(priv);
Holger Schurig10078322007-11-15 18:05:47 -05001035 lbs_remove_rtap(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001036
1037 dev = priv->dev;
Dan Williams954ee162007-08-20 11:43:25 -04001038
Holger Schurig652e3f22008-04-30 10:51:15 +02001039 cancel_delayed_work_sync(&priv->scan_work);
1040 cancel_delayed_work_sync(&priv->assoc_work);
David Woodhouse75bf45a2008-05-20 13:32:45 +01001041 cancel_work_sync(&priv->mcast_work);
Dan Williams71b35f32008-09-08 16:34:40 -04001042
1043 /* worker thread destruction blocks on the in-flight command which
1044 * should have been cleared already in lbs_stop_card().
1045 */
1046 lbs_deb_main("destroying worker thread\n");
Dan Williams954ee162007-08-20 11:43:25 -04001047 destroy_workqueue(priv->work_thread);
Dan Williams71b35f32008-09-08 16:34:40 -04001048 lbs_deb_main("done destroying worker thread\n");
Dan Williams954ee162007-08-20 11:43:25 -04001049
David Woodhouseaa21c002007-12-08 20:04:36 +00001050 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1051 priv->psmode = LBS802_11POWERMODECAM;
Holger Schurig10078322007-11-15 18:05:47 -05001052 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001053 }
1054
Holger Schurigfea2b8e2009-10-22 15:30:56 +02001055 lbs_send_disconnect_notification(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001056
Amitkumar Karwar49125452009-09-30 20:04:38 -07001057 if (priv->is_deep_sleep) {
1058 priv->is_deep_sleep = 0;
1059 wake_up_interruptible(&priv->ds_awake_q);
1060 }
1061
Dan Williams954ee162007-08-20 11:43:25 -04001062 /* Stop the thread servicing the interrupts */
David Woodhouseaa21c002007-12-08 20:04:36 +00001063 priv->surpriseremoved = 1;
Dan Williams954ee162007-08-20 11:43:25 -04001064 kthread_stop(priv->main_thread);
1065
Holger Schurig10078322007-11-15 18:05:47 -05001066 lbs_free_adapter(priv);
Holger Schurigff9fc792009-10-06 16:31:54 +02001067 lbs_cfg_free(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001068
1069 priv->dev = NULL;
1070 free_netdev(dev);
1071
1072 lbs_deb_leave(LBS_DEB_MAIN);
Dan Williams954ee162007-08-20 11:43:25 -04001073}
Holger Schurig10078322007-11-15 18:05:47 -05001074EXPORT_SYMBOL_GPL(lbs_remove_card);
Dan Williams954ee162007-08-20 11:43:25 -04001075
1076
Holger Schurig69f90322007-11-23 15:43:44 +01001077int lbs_start_card(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -04001078{
1079 struct net_device *dev = priv->dev;
1080 int ret = -1;
1081
1082 lbs_deb_enter(LBS_DEB_MAIN);
1083
1084 /* poke the firmware */
Holger Schurig10078322007-11-15 18:05:47 -05001085 ret = lbs_setup_firmware(priv);
Dan Williams954ee162007-08-20 11:43:25 -04001086 if (ret)
1087 goto done;
1088
Holger Schurigff9fc792009-10-06 16:31:54 +02001089 if (lbs_cfg_register(priv)) {
1090 lbs_pr_err("cannot register device\n");
Dan Williams954ee162007-08-20 11:43:25 -04001091 goto done;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001092 }
David Woodhouse020f3d02007-12-12 23:29:13 -05001093
David Woodhouse020f3d02007-12-12 23:29:13 -05001094 lbs_update_channel(priv);
David Woodhouse020f3d02007-12-12 23:29:13 -05001095
Holger Schurige0e42da2009-11-25 13:10:15 +01001096 /*
1097 * While rtap isn't related to mesh, only mesh-enabled
1098 * firmware implements the rtap functionality via
1099 * CMD_802_11_MONITOR_MODE.
Bing Zhao684d6b32009-03-25 09:51:16 -07001100 */
Holger Schurige0e42da2009-11-25 13:10:15 +01001101 if (lbs_init_mesh(priv)) {
Bing Zhao684d6b32009-03-25 09:51:16 -07001102 if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
1103 lbs_pr_err("cannot register lbs_rtap attribute\n");
David Woodhouse020f3d02007-12-12 23:29:13 -05001104 }
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001105
Holger Schurig10078322007-11-15 18:05:47 -05001106 lbs_debugfs_init_one(priv, dev);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001107
Dan Williams954ee162007-08-20 11:43:25 -04001108 lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001109
Dan Williams954ee162007-08-20 11:43:25 -04001110 ret = 0;
1111
Holger Schurig32a74b72007-05-25 12:04:31 -04001112done:
Dan Williams954ee162007-08-20 11:43:25 -04001113 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
Holger Schurig32a74b72007-05-25 12:04:31 -04001114 return ret;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001115}
Holger Schurig10078322007-11-15 18:05:47 -05001116EXPORT_SYMBOL_GPL(lbs_start_card);
Dan Williams954ee162007-08-20 11:43:25 -04001117
1118
Holger Schuriga63e5cb2008-04-30 10:50:39 +02001119void lbs_stop_card(struct lbs_private *priv)
Dan Williams954ee162007-08-20 11:43:25 -04001120{
Julia Lawall43baa5b2009-01-09 10:23:10 +00001121 struct net_device *dev;
Dan Williams954ee162007-08-20 11:43:25 -04001122 struct cmd_ctrl_node *cmdnode;
1123 unsigned long flags;
1124
1125 lbs_deb_enter(LBS_DEB_MAIN);
1126
Holger Schurig652e3f22008-04-30 10:51:15 +02001127 if (!priv)
1128 goto out;
Julia Lawall43baa5b2009-01-09 10:23:10 +00001129 dev = priv->dev;
Holger Schurig652e3f22008-04-30 10:51:15 +02001130
Julia Lawall43baa5b2009-01-09 10:23:10 +00001131 netif_stop_queue(dev);
1132 netif_carrier_off(dev);
Dan Williams954ee162007-08-20 11:43:25 -04001133
Holger Schurig10078322007-11-15 18:05:47 -05001134 lbs_debugfs_remove_one(priv);
Holger Schurige0e42da2009-11-25 13:10:15 +01001135 if (lbs_deinit_mesh(priv))
Dan Williams3b72b012008-07-29 13:50:39 -04001136 device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
Dan Williams954ee162007-08-20 11:43:25 -04001137
Dan Williams71b35f32008-09-08 16:34:40 -04001138 /* Delete the timeout of the currently processing command */
Holger Schurig652e3f22008-04-30 10:51:15 +02001139 del_timer_sync(&priv->command_timer);
Amitkumar Karwar49125452009-09-30 20:04:38 -07001140 del_timer_sync(&priv->auto_deepsleep_timer);
Dan Williams71b35f32008-09-08 16:34:40 -04001141
1142 /* Flush pending command nodes */
David Woodhouseaa21c002007-12-08 20:04:36 +00001143 spin_lock_irqsave(&priv->driver_lock, flags);
Dan Williams71b35f32008-09-08 16:34:40 -04001144 lbs_deb_main("clearing pending commands\n");
David Woodhouseaa21c002007-12-08 20:04:36 +00001145 list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
David Woodhouseae125bf2007-12-15 04:22:52 -05001146 cmdnode->result = -ENOENT;
Dan Williams954ee162007-08-20 11:43:25 -04001147 cmdnode->cmdwaitqwoken = 1;
1148 wake_up_interruptible(&cmdnode->cmdwait_q);
1149 }
Dan Williams71b35f32008-09-08 16:34:40 -04001150
1151 /* Flush the command the card is currently processing */
1152 if (priv->cur_cmd) {
1153 lbs_deb_main("clearing current command\n");
1154 priv->cur_cmd->result = -ENOENT;
1155 priv->cur_cmd->cmdwaitqwoken = 1;
1156 wake_up_interruptible(&priv->cur_cmd->cmdwait_q);
1157 }
1158 lbs_deb_main("done clearing commands\n");
David Woodhouseaa21c002007-12-08 20:04:36 +00001159 spin_unlock_irqrestore(&priv->driver_lock, flags);
Dan Williams954ee162007-08-20 11:43:25 -04001160
1161 unregister_netdev(dev);
1162
Holger Schurig652e3f22008-04-30 10:51:15 +02001163out:
Holger Schuriga63e5cb2008-04-30 10:50:39 +02001164 lbs_deb_leave(LBS_DEB_MAIN);
Dan Williams954ee162007-08-20 11:43:25 -04001165}
Holger Schurig10078322007-11-15 18:05:47 -05001166EXPORT_SYMBOL_GPL(lbs_stop_card);
Holger Schurig084708b2007-05-25 12:37:58 -04001167
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001168
Holger Schurig7919b892008-04-01 14:50:43 +02001169void lbs_queue_event(struct lbs_private *priv, u32 event)
1170{
1171 unsigned long flags;
1172
1173 lbs_deb_enter(LBS_DEB_THREAD);
1174 spin_lock_irqsave(&priv->driver_lock, flags);
1175
1176 if (priv->psstate == PS_STATE_SLEEP)
1177 priv->psstate = PS_STATE_AWAKE;
1178
Stefani Seibold7acd72e2009-12-21 14:37:28 -08001179 kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32));
Holger Schurig7919b892008-04-01 14:50:43 +02001180
1181 wake_up_interruptible(&priv->waitq);
1182
1183 spin_unlock_irqrestore(&priv->driver_lock, flags);
1184 lbs_deb_leave(LBS_DEB_THREAD);
1185}
1186EXPORT_SYMBOL_GPL(lbs_queue_event);
1187
1188void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001189{
Holger Schuriged37b512007-05-25 11:52:42 -04001190 lbs_deb_enter(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001191
David Woodhouse4f679492007-12-10 14:58:37 -05001192 if (priv->psstate == PS_STATE_SLEEP)
David Woodhouseaa21c002007-12-08 20:04:36 +00001193 priv->psstate = PS_STATE_AWAKE;
Holger Schurig7919b892008-04-01 14:50:43 +02001194
1195 /* Swap buffers by flipping the response index */
1196 BUG_ON(resp_idx > 1);
1197 priv->resp_idx = resp_idx;
1198
Dan Williamsfe336152007-08-02 11:32:25 -04001199 wake_up_interruptible(&priv->waitq);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001200
Holger Schuriged37b512007-05-25 11:52:42 -04001201 lbs_deb_leave(LBS_DEB_THREAD);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001202}
Holger Schurig7919b892008-04-01 14:50:43 +02001203EXPORT_SYMBOL_GPL(lbs_notify_command_response);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001204
Andres Salomon4fb910f2007-11-20 17:43:45 -05001205static int __init lbs_init_module(void)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001206{
Holger Schurig9012b282007-05-25 11:27:16 -04001207 lbs_deb_enter(LBS_DEB_MAIN);
Holger Schurigf539f2e2008-03-26 13:22:11 +01001208 memset(&confirm_sleep, 0, sizeof(confirm_sleep));
1209 confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE);
1210 confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep));
1211 confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
Holger Schurig10078322007-11-15 18:05:47 -05001212 lbs_debugfs_init();
Holger Schurig084708b2007-05-25 12:37:58 -04001213 lbs_deb_leave(LBS_DEB_MAIN);
1214 return 0;
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001215}
1216
Andres Salomon4fb910f2007-11-20 17:43:45 -05001217static void __exit lbs_exit_module(void)
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001218{
Holger Schurig9012b282007-05-25 11:27:16 -04001219 lbs_deb_enter(LBS_DEB_MAIN);
Holger Schurig10078322007-11-15 18:05:47 -05001220 lbs_debugfs_remove();
Holger Schurig9012b282007-05-25 11:27:16 -04001221 lbs_deb_leave(LBS_DEB_MAIN);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001222}
1223
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001224/*
1225 * rtap interface support fuctions
1226 */
1227
Holger Schurig10078322007-11-15 18:05:47 -05001228static int lbs_rtap_open(struct net_device *dev)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001229{
David Woodhouse8552855f2007-12-10 16:38:18 -05001230 /* Yes, _stop_ the queue. Because we don't support injection */
Holger Schurig61d30022008-01-16 15:59:52 +01001231 lbs_deb_enter(LBS_DEB_MAIN);
1232 netif_carrier_off(dev);
1233 netif_stop_queue(dev);
1234 lbs_deb_leave(LBS_DEB_LEAVE);
1235 return 0;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001236}
1237
Holger Schurig10078322007-11-15 18:05:47 -05001238static int lbs_rtap_stop(struct net_device *dev)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001239{
Holger Schurig61d30022008-01-16 15:59:52 +01001240 lbs_deb_enter(LBS_DEB_MAIN);
1241 lbs_deb_leave(LBS_DEB_MAIN);
1242 return 0;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001243}
1244
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001245static netdev_tx_t lbs_rtap_hard_start_xmit(struct sk_buff *skb,
1246 struct net_device *dev)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001247{
Holger Schurig61d30022008-01-16 15:59:52 +01001248 netif_stop_queue(dev);
1249 return NETDEV_TX_BUSY;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001250}
1251
David Woodhouse2fd6cfe2007-12-11 17:44:10 -05001252static void lbs_remove_rtap(struct lbs_private *priv)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001253{
Holger Schurig61d30022008-01-16 15:59:52 +01001254 lbs_deb_enter(LBS_DEB_MAIN);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001255 if (priv->rtap_net_dev == NULL)
Holger Schurig5f505d92008-04-30 10:50:07 +02001256 goto out;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001257 unregister_netdev(priv->rtap_net_dev);
David Woodhoused9268fb2007-12-09 16:22:21 -05001258 free_netdev(priv->rtap_net_dev);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001259 priv->rtap_net_dev = NULL;
Holger Schurig5f505d92008-04-30 10:50:07 +02001260out:
Holger Schurig61d30022008-01-16 15:59:52 +01001261 lbs_deb_leave(LBS_DEB_MAIN);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001262}
1263
Stephen Hemmingerf02abf12009-03-20 19:36:37 +00001264static const struct net_device_ops rtap_netdev_ops = {
1265 .ndo_open = lbs_rtap_open,
1266 .ndo_stop = lbs_rtap_stop,
1267 .ndo_start_xmit = lbs_rtap_hard_start_xmit,
1268};
1269
David Woodhouse2fd6cfe2007-12-11 17:44:10 -05001270static int lbs_add_rtap(struct lbs_private *priv)
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001271{
Holger Schurig61d30022008-01-16 15:59:52 +01001272 int ret = 0;
David Woodhoused9268fb2007-12-09 16:22:21 -05001273 struct net_device *rtap_dev;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001274
Holger Schurig61d30022008-01-16 15:59:52 +01001275 lbs_deb_enter(LBS_DEB_MAIN);
1276 if (priv->rtap_net_dev) {
1277 ret = -EPERM;
1278 goto out;
1279 }
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001280
David Woodhoused9268fb2007-12-09 16:22:21 -05001281 rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
Holger Schurig61d30022008-01-16 15:59:52 +01001282 if (rtap_dev == NULL) {
1283 ret = -ENOMEM;
1284 goto out;
1285 }
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001286
David Woodhouse121947c2007-12-09 19:54:11 -05001287 memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
David Woodhoused9268fb2007-12-09 16:22:21 -05001288 rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
Stephen Hemmingerf02abf12009-03-20 19:36:37 +00001289 rtap_dev->netdev_ops = &rtap_netdev_ops;
Wang Chen4ceb7b62008-09-05 11:28:47 +08001290 rtap_dev->ml_priv = priv;
Masakazu Mokuno229ce3a2008-05-14 14:16:50 +09001291 SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent);
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001292
Holger Schurig61d30022008-01-16 15:59:52 +01001293 ret = register_netdev(rtap_dev);
1294 if (ret) {
David Woodhoused9268fb2007-12-09 16:22:21 -05001295 free_netdev(rtap_dev);
Holger Schurig61d30022008-01-16 15:59:52 +01001296 goto out;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001297 }
David Woodhoused9268fb2007-12-09 16:22:21 -05001298 priv->rtap_net_dev = rtap_dev;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001299
Holger Schurig61d30022008-01-16 15:59:52 +01001300out:
1301 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1302 return ret;
Luis Carlos Cobo965f8bbc2007-08-02 13:16:55 -04001303}
1304
Holger Schurig10078322007-11-15 18:05:47 -05001305module_init(lbs_init_module);
1306module_exit(lbs_exit_module);
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001307
Holger Schurig084708b2007-05-25 12:37:58 -04001308MODULE_DESCRIPTION("Libertas WLAN Driver Library");
Marcelo Tosatti876c9d32007-02-10 12:25:27 -02001309MODULE_AUTHOR("Marvell International Ltd.");
1310MODULE_LICENSE("GPL");