diff options
Diffstat (limited to 'package/libertas/src/main.c')
| -rw-r--r-- | package/libertas/src/main.c | 1628 |
1 files changed, 0 insertions, 1628 deletions
diff --git a/package/libertas/src/main.c b/package/libertas/src/main.c deleted file mode 100644 index f6820da..0000000 --- a/package/libertas/src/main.c +++ /dev/null @@ -1,1628 +0,0 @@ -/** - * This file contains the major functions in WLAN - * driver. It includes init, exit, open, close and main - * thread etc.. - */ - -#include <linux/moduleparam.h> -#include <linux/delay.h> -#include <linux/etherdevice.h> -#include <linux/netdevice.h> -#include <linux/if_arp.h> -#include <linux/kthread.h> -#include <linux/kfifo.h> -#ifdef CONFIG_OLPC -#include <asm/olpc.h> -#endif - -#include <net/iw_handler.h> -#include <net/ieee80211.h> - -#include "host.h" -#include "decl.h" -#include "dev.h" -#include "wext.h" -#include "debugfs.h" -#include "scan.h" -#include "assoc.h" -#include "cmd.h" -#include "ioctl.h" - -#define DRIVER_RELEASE_VERSION "323.p0" -const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION -#ifdef DEBUG - "-dbg" -#endif - ""; - - -/* Module parameters */ -unsigned int lbs_debug; -EXPORT_SYMBOL_GPL(lbs_debug); -module_param_named(libertas_debug, lbs_debug, int, 0644); - - -/* This global structure is used to send the confirm_sleep command as - * fast as possible down to the firmware. */ -struct cmd_confirm_sleep confirm_sleep; - - -#define LBS_TX_PWR_DEFAULT 20 /*100mW */ -#define LBS_TX_PWR_US_DEFAULT 20 /*100mW */ -#define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */ -#define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */ -#define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */ - -/* Format { channel, frequency (MHz), maxtxpower } */ -/* band: 'B/G', region: USA FCC/Canada IC */ -static struct chan_freq_power channel_freq_power_US_BG[] = { - {1, 2412, LBS_TX_PWR_US_DEFAULT}, - {2, 2417, LBS_TX_PWR_US_DEFAULT}, - {3, 2422, LBS_TX_PWR_US_DEFAULT}, - {4, 2427, LBS_TX_PWR_US_DEFAULT}, - {5, 2432, LBS_TX_PWR_US_DEFAULT}, - {6, 2437, LBS_TX_PWR_US_DEFAULT}, - {7, 2442, LBS_TX_PWR_US_DEFAULT}, - {8, 2447, LBS_TX_PWR_US_DEFAULT}, - {9, 2452, LBS_TX_PWR_US_DEFAULT}, - {10, 2457, LBS_TX_PWR_US_DEFAULT}, - {11, 2462, LBS_TX_PWR_US_DEFAULT} -}; - -/* band: 'B/G', region: Europe ETSI */ -static struct chan_freq_power channel_freq_power_EU_BG[] = { - {1, 2412, LBS_TX_PWR_EMEA_DEFAULT}, - {2, 2417, LBS_TX_PWR_EMEA_DEFAULT}, - {3, 2422, LBS_TX_PWR_EMEA_DEFAULT}, - {4, 2427, LBS_TX_PWR_EMEA_DEFAULT}, - {5, 2432, LBS_TX_PWR_EMEA_DEFAULT}, - {6, 2437, LBS_TX_PWR_EMEA_DEFAULT}, - {7, 2442, LBS_TX_PWR_EMEA_DEFAULT}, - {8, 2447, LBS_TX_PWR_EMEA_DEFAULT}, - {9, 2452, LBS_TX_PWR_EMEA_DEFAULT}, - {10, 2457, LBS_TX_PWR_EMEA_DEFAULT}, - {11, 2462, LBS_TX_PWR_EMEA_DEFAULT}, - {12, 2467, LBS_TX_PWR_EMEA_DEFAULT}, - {13, 2472, LBS_TX_PWR_EMEA_DEFAULT} -}; - -/* band: 'B/G', region: Spain */ -static struct chan_freq_power channel_freq_power_SPN_BG[] = { - {10, 2457, LBS_TX_PWR_DEFAULT}, - {11, 2462, LBS_TX_PWR_DEFAULT} -}; - -/* band: 'B/G', region: France */ -static struct chan_freq_power channel_freq_power_FR_BG[] = { - {10, 2457, LBS_TX_PWR_FR_DEFAULT}, - {11, 2462, LBS_TX_PWR_FR_DEFAULT}, - {12, 2467, LBS_TX_PWR_FR_DEFAULT}, - {13, 2472, LBS_TX_PWR_FR_DEFAULT} -}; - -/* band: 'B/G', region: Japan */ -static struct chan_freq_power channel_freq_power_JPN_BG[] = { - {1, 2412, LBS_TX_PWR_JP_DEFAULT}, - {2, 2417, LBS_TX_PWR_JP_DEFAULT}, - {3, 2422, LBS_TX_PWR_JP_DEFAULT}, - {4, 2427, LBS_TX_PWR_JP_DEFAULT}, - {5, 2432, LBS_TX_PWR_JP_DEFAULT}, - {6, 2437, LBS_TX_PWR_JP_DEFAULT}, - {7, 2442, LBS_TX_PWR_JP_DEFAULT}, - {8, 2447, LBS_TX_PWR_JP_DEFAULT}, - {9, 2452, LBS_TX_PWR_JP_DEFAULT}, - {10, 2457, LBS_TX_PWR_JP_DEFAULT}, - {11, 2462, LBS_TX_PWR_JP_DEFAULT}, - {12, 2467, LBS_TX_PWR_JP_DEFAULT}, - {13, 2472, LBS_TX_PWR_JP_DEFAULT}, - {14, 2484, LBS_TX_PWR_JP_DEFAULT} -}; - -/** - * the structure for channel, frequency and power - */ -struct region_cfp_table { - u8 region; - struct chan_freq_power *cfp_BG; - int cfp_no_BG; -}; - -/** - * the structure for the mapping between region and CFP - */ -static struct region_cfp_table region_cfp_table[] = { - {0x10, /*US FCC */ - channel_freq_power_US_BG, - ARRAY_SIZE(channel_freq_power_US_BG), - } - , - {0x20, /*CANADA IC */ - channel_freq_power_US_BG, - ARRAY_SIZE(channel_freq_power_US_BG), - } - , - {0x30, /*EU*/ channel_freq_power_EU_BG, - ARRAY_SIZE(channel_freq_power_EU_BG), - } - , - {0x31, /*SPAIN*/ channel_freq_power_SPN_BG, - ARRAY_SIZE(channel_freq_power_SPN_BG), - } - , - {0x32, /*FRANCE*/ channel_freq_power_FR_BG, - ARRAY_SIZE(channel_freq_power_FR_BG), - } - , - {0x40, /*JAPAN*/ channel_freq_power_JPN_BG, - ARRAY_SIZE(channel_freq_power_JPN_BG), - } - , -/*Add new region here */ -}; - -/** - * the table to keep region code - */ -u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = - { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; - -/** - * 802.11b/g supported bitrates (in 500Kb/s units) - */ -u8 lbs_bg_rates[MAX_RATES] = - { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c, -0x00, 0x00 }; - -/** - * FW rate table. FW refers to rates by their index in this table, not by the - * rate value itself. Values of 0x00 are - * reserved positions. - */ -static u8 fw_data_rates[MAX_RATES] = - { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, - 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 -}; - -/** - * @brief use index to get the data rate - * - * @param idx The index of data rate - * @return data rate or 0 - */ -u32 lbs_fw_index_to_data_rate(u8 idx) -{ - if (idx >= sizeof(fw_data_rates)) - idx = 0; - return fw_data_rates[idx]; -} - -/** - * @brief use rate to get the index - * - * @param rate data rate - * @return index or 0 - */ -u8 lbs_data_rate_to_fw_index(u32 rate) -{ - u8 i; - - if (!rate) - return 0; - - for (i = 0; i < sizeof(fw_data_rates); i++) { - if (rate == fw_data_rates[i]) - return i; - } - return 0; -} - -/** - * Attributes exported through sysfs - */ - -/** - * @brief Get function for sysfs attribute anycast_mask - */ -static ssize_t lbs_anycast_get(struct device *dev, - struct device_attribute *attr, char * buf) -{ - struct lbs_private *priv = to_net_dev(dev)->priv; - struct cmd_ds_mesh_access mesh_access; - int ret; - - memset(&mesh_access, 0, sizeof(mesh_access)); - - ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access); - if (ret) - return ret; - - return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0])); -} - -/** - * @brief Set function for sysfs attribute anycast_mask - */ -static ssize_t lbs_anycast_set(struct device *dev, - struct device_attribute *attr, const char * buf, size_t count) -{ - struct lbs_private *priv = to_net_dev(dev)->priv; - struct cmd_ds_mesh_access mesh_access; - uint32_t datum; - int ret; - - memset(&mesh_access, 0, sizeof(mesh_access)); - sscanf(buf, "%x", &datum); - mesh_access.data[0] = cpu_to_le32(datum); - - ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access); - if (ret) - return ret; - - return strlen(buf); -} - -static int lbs_add_rtap(struct lbs_private *priv); -static void lbs_remove_rtap(struct lbs_private *priv); -static int lbs_add_mesh(struct lbs_private *priv); -static void lbs_remove_mesh(struct lbs_private *priv); - - -/** - * Get function for sysfs attribute rtap - */ -static ssize_t lbs_rtap_get(struct device *dev, - struct device_attribute *attr, char * buf) -{ - struct lbs_private *priv = to_net_dev(dev)->priv; - return snprintf(buf, 5, "0x%X\n", priv->monitormode); -} - -/** - * Set function for sysfs attribute rtap - */ -static ssize_t lbs_rtap_set(struct device *dev, - struct device_attribute *attr, const char * buf, size_t count) -{ - int monitor_mode; - struct lbs_private *priv = to_net_dev(dev)->priv; - - sscanf(buf, "%x", &monitor_mode); - if (monitor_mode) { - if (priv->monitormode == monitor_mode) - return strlen(buf); - if (!priv->monitormode) { - if (priv->infra_open || priv->mesh_open) - return -EBUSY; - if (priv->mode == IW_MODE_INFRA) - lbs_send_deauthentication(priv); - else if (priv->mode == IW_MODE_ADHOC) - lbs_stop_adhoc_network(priv); - lbs_add_rtap(priv); - } - priv->monitormode = monitor_mode; - } - - else { - if (!priv->monitormode) - return strlen(buf); - priv->monitormode = 0; - lbs_remove_rtap(priv); - - if (priv->currenttxskb) { - dev_kfree_skb_any(priv->currenttxskb); - priv->currenttxskb = NULL; - } - - /* Wake queues, command thread, etc. */ - lbs_host_to_card_done(priv); - } - - lbs_prepare_and_send_command(priv, - CMD_802_11_MONITOR_MODE, CMD_ACT_SET, - CMD_OPTION_WAITFORRSP, 0, &priv->monitormode); - return strlen(buf); -} - -/** - * lbs_rtap attribute to be exported per ethX interface - * through sysfs (/sys/class/net/ethX/lbs_rtap) - */ -static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set ); - -/** - * Get function for sysfs attribute mesh - */ -static ssize_t lbs_mesh_get(struct device *dev, - struct device_attribute *attr, char * buf) -{ - struct lbs_private *priv = to_net_dev(dev)->priv; - return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev); -} - -/** - * Set function for sysfs attribute mesh - */ -static ssize_t lbs_mesh_set(struct device *dev, - struct device_attribute *attr, const char * buf, size_t count) -{ - struct lbs_private *priv = to_net_dev(dev)->priv; - int enable; - int ret; - - sscanf(buf, "%x", &enable); - enable = !!enable; - if (enable == !!priv->mesh_dev) - return count; - - ret = lbs_mesh_config(priv, enable, priv->curbssparams.channel); - if (ret) - return ret; - - if (enable) - lbs_add_mesh(priv); - else - lbs_remove_mesh(priv); - - return count; -} - -/** - * lbs_mesh attribute to be exported per ethX interface - * through sysfs (/sys/class/net/ethX/lbs_mesh) - */ -static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set); - -/** - * anycast_mask attribute to be exported per mshX interface - * through sysfs (/sys/class/net/mshX/anycast_mask) - */ -static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set); - -static struct attribute *lbs_mesh_sysfs_entries[] = { - &dev_attr_anycast_mask.attr, - NULL, -}; - -static struct attribute_group lbs_mesh_attr_group = { - .attrs = lbs_mesh_sysfs_entries, -}; - -/** - * @brief This function opens the ethX or mshX interface - * - * @param dev A pointer to net_device structure - * @return 0 or -EBUSY if monitor mode active - */ -static int lbs_dev_open(struct net_device *dev) -{ - struct lbs_private *priv = (struct lbs_private *) dev->priv ; - int ret = 0; - - lbs_deb_enter(LBS_DEB_NET); - - spin_lock_irq(&priv->driver_lock); - - if (priv->monitormode) { - ret = -EBUSY; - goto out; - } - - if (dev == priv->mesh_dev) { - priv->mesh_open = 1; - priv->mesh_connect_status = LBS_CONNECTED; - netif_carrier_on(dev); - } else { - priv->infra_open = 1; - - if (priv->connect_status == LBS_CONNECTED) - netif_carrier_on(dev); - else - netif_carrier_off(dev); - } - - if (!priv->tx_pending_len) - netif_wake_queue(dev); - out: - - spin_unlock_irq(&priv->driver_lock); - lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); - return ret; -} - -/** - * @brief This function closes the mshX interface - * - * @param dev A pointer to net_device structure - * @return 0 - */ -static int lbs_mesh_stop(struct net_device *dev) -{ - struct lbs_private *priv = (struct lbs_private *) (dev->priv); - - lbs_deb_enter(LBS_DEB_MESH); - spin_lock_irq(&priv->driver_lock); - - priv->mesh_open = 0; - priv->mesh_connect_status = LBS_DISCONNECTED; - - netif_stop_queue(dev); - netif_carrier_off(dev); - - spin_unlock_irq(&priv->driver_lock); - - lbs_deb_leave(LBS_DEB_MESH); - return 0; -} - -/** - * @brief This function closes the ethX interface - * - * @param dev A pointer to net_device structure - * @return 0 - */ -static int lbs_eth_stop(struct net_device *dev) -{ - struct lbs_private *priv = (struct lbs_private *) dev->priv; - - lbs_deb_enter(LBS_DEB_NET); - - spin_lock_irq(&priv->driver_lock); - priv->infra_open = 0; - netif_stop_queue(dev); - spin_unlock_irq(&priv->driver_lock); - - lbs_deb_leave(LBS_DEB_NET); - return 0; -} - -static void lbs_tx_timeout(struct net_device *dev) -{ - struct lbs_private *priv = (struct lbs_private *) dev->priv; - - lbs_deb_enter(LBS_DEB_TX); - - lbs_pr_err("tx watch dog timeout\n"); - - dev->trans_start = jiffies; - - if (priv->currenttxskb) - lbs_send_tx_feedback(priv, 0); - - /* XX: Shouldn't we also call into the hw-specific driver - to kick it somehow? */ - lbs_host_to_card_done(priv); - - /* More often than not, this actually happens because the - firmware has crapped itself -- rather than just a very - busy medium. So send a harmless command, and if/when - _that_ times out, we'll kick it in the head. */ - lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, - 0, 0, NULL); - - lbs_deb_leave(LBS_DEB_TX); -} - -void lbs_host_to_card_done(struct lbs_private *priv) -{ - unsigned long flags; - - lbs_deb_enter(LBS_DEB_THREAD); - - spin_lock_irqsave(&priv->driver_lock, flags); - - priv->dnld_sent = DNLD_RES_RECEIVED; - - /* Wake main thread if commands are pending */ - if (!priv->cur_cmd || priv->tx_pending_len > 0) - wake_up_interruptible(&priv->waitq); - - spin_unlock_irqrestore(&priv->driver_lock, flags); - lbs_deb_leave(LBS_DEB_THREAD); -} -EXPORT_SYMBOL_GPL(lbs_host_to_card_done); - -/** - * @brief This function returns the network statistics - * - * @param dev A pointer to struct lbs_private structure - * @return A pointer to net_device_stats structure - */ -static struct net_device_stats *lbs_get_stats(struct net_device *dev) -{ - struct lbs_private *priv = (struct lbs_private *) dev->priv; - - lbs_deb_enter(LBS_DEB_NET); - return &priv->stats; -} - -static int lbs_set_mac_address(struct net_device *dev, void *addr) -{ - int ret = 0; - struct lbs_private *priv = (struct lbs_private *) dev->priv; - struct sockaddr *phwaddr = addr; - struct cmd_ds_802_11_mac_address cmd; - - lbs_deb_enter(LBS_DEB_NET); - - /* In case it was called from the mesh device */ - dev = priv->dev; - - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN); - - ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); - if (ret) { - lbs_deb_net("set MAC address failed\n"); - goto done; - } - - memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); - memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); - if (priv->mesh_dev) - memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); - -done: - lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); - return ret; -} - -static int lbs_copy_multicast_address(struct lbs_private *priv, - struct net_device *dev) -{ - int i = 0; - struct dev_mc_list *mcptr = dev->mc_list; - - for (i = 0; i < dev->mc_count; i++) { - memcpy(&priv->multicastlist[i], mcptr->dmi_addr, ETH_ALEN); - mcptr = mcptr->next; - } - return i; -} - -static void lbs_set_multicast_list(struct net_device *dev) -{ - struct lbs_private *priv = dev->priv; - int old_mac_control; - DECLARE_MAC_BUF(mac); - - lbs_deb_enter(LBS_DEB_NET); - - old_mac_control = priv->mac_control; - - if (dev->flags & IFF_PROMISC) { - lbs_deb_net("enable promiscuous mode\n"); - priv->mac_control |= - CMD_ACT_MAC_PROMISCUOUS_ENABLE; - priv->mac_control &= - ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | - CMD_ACT_MAC_MULTICAST_ENABLE); - } else { - /* Multicast */ - priv->mac_control &= - ~CMD_ACT_MAC_PROMISCUOUS_ENABLE; - - if (dev->flags & IFF_ALLMULTI || dev->mc_count > - MRVDRV_MAX_MULTICAST_LIST_SIZE) { - lbs_deb_net( "enabling all multicast\n"); - priv->mac_control |= - CMD_ACT_MAC_ALL_MULTICAST_ENABLE; - priv->mac_control &= - ~CMD_ACT_MAC_MULTICAST_ENABLE; - } else { - priv->mac_control &= - ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE; - - if (!dev->mc_count) { - lbs_deb_net("no multicast addresses, " - "disabling multicast\n"); - priv->mac_control &= - ~CMD_ACT_MAC_MULTICAST_ENABLE; - } else { - int i; - - priv->mac_control |= - CMD_ACT_MAC_MULTICAST_ENABLE; - - priv->nr_of_multicastmacaddr = - lbs_copy_multicast_address(priv, dev); - - lbs_deb_net("multicast addresses: %d\n", - dev->mc_count); - - for (i = 0; i < dev->mc_count; i++) { - lbs_deb_net("Multicast address %d: %s\n", - i, print_mac(mac, - priv->multicastlist[i])); - } - /* send multicast addresses to firmware */ - lbs_prepare_and_send_command(priv, - CMD_MAC_MULTICAST_ADR, - CMD_ACT_SET, 0, 0, - NULL); - } - } - } - - if (priv->mac_control != old_mac_control) - lbs_set_mac_control(priv); - - lbs_deb_leave(LBS_DEB_NET); -} - -/** - * @brief This function handles the major jobs in the LBS driver. - * It handles all events generated by firmware, RX data received - * from firmware and TX data sent from kernel. - * - * @param data A pointer to lbs_thread structure - * @return 0 - */ -static int lbs_thread(void *data) -{ - struct net_device *dev = data; - struct lbs_private *priv = dev->priv; - wait_queue_t wait; - - lbs_deb_enter(LBS_DEB_THREAD); - - init_waitqueue_entry(&wait, current); - - for (;;) { - int shouldsleep; - u8 resp_idx; - - lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", - priv->currenttxskb, priv->dnld_sent); - - add_wait_queue(&priv->waitq, &wait); - set_current_state(TASK_INTERRUPTIBLE); - spin_lock_irq(&priv->driver_lock); - - if (kthread_should_stop()) - shouldsleep = 0; /* Bye */ - else if (priv->surpriseremoved) - shouldsleep = 1; /* We need to wait until we're _told_ to die */ - else if (priv->psstate == PS_STATE_SLEEP) - shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ - else if (priv->cmd_timed_out) - shouldsleep = 0; /* Command timed out. Recover */ - else if (!priv->fw_ready) - shouldsleep = 1; /* Firmware not ready. We're waiting for it */ - else if (priv->dnld_sent) - shouldsleep = 1; /* Something is en route to the device already */ - else if (priv->tx_pending_len > 0) - shouldsleep = 0; /* We've a packet to send */ - else if (priv->cur_cmd) - shouldsleep = 1; /* Can't send a command; one already running */ - else if (!list_empty(&priv->cmdpendingq)) - shouldsleep = 0; /* We have a command to send */ - else if (__kfifo_len(priv->event_fifo)) - shouldsleep = 0; /* We have an event to process */ - else if (priv->resp_len[priv->resp_idx]) - shouldsleep = 0; /* We have a command response */ - else - shouldsleep = 1; /* No command */ - - if (shouldsleep) { - lbs_deb_thread("sleeping, connect_status %d, " - "ps_mode %d, ps_state %d\n", - priv->connect_status, - priv->psmode, priv->psstate); - spin_unlock_irq(&priv->driver_lock); - schedule(); - } else - spin_unlock_irq(&priv->driver_lock); - - lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", - priv->currenttxskb, priv->dnld_sent); - - set_current_state(TASK_RUNNING); - remove_wait_queue(&priv->waitq, &wait); - - lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", - priv->currenttxskb, priv->dnld_sent); - - if (kthread_should_stop()) { - lbs_deb_thread("break from main thread\n"); - break; - } - - if (priv->surpriseremoved) { - lbs_deb_thread("adapter removed; waiting to die...\n"); - continue; - } - - lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", - priv->currenttxskb, priv->dnld_sent); - - /* Process any pending command response */ - spin_lock_irq(&priv->driver_lock); - resp_idx = priv->resp_idx; - if (priv->resp_len[resp_idx]) { - spin_unlock_irq(&priv->driver_lock); - lbs_process_command_response(priv, - priv->resp_buf[resp_idx], - priv->resp_len[resp_idx]); - spin_lock_irq(&priv->driver_lock); - priv->resp_len[resp_idx] = 0; - } - spin_unlock_irq(&priv->driver_lock); - - /* command timeout stuff */ - if (priv->cmd_timed_out && priv->cur_cmd) { - struct cmd_ctrl_node *cmdnode = priv->cur_cmd; - - if (++priv->nr_retries > 10) { - lbs_pr_info("Excessive timeouts submitting command %x\n", - le16_to_cpu(cmdnode->cmdbuf->command)); - lbs_complete_command(priv, cmdnode, -ETIMEDOUT); - priv->nr_retries = 0; -#ifdef CONFIG_OLPC - if (machine_is_olpc()) { - spin_unlock_irq(&priv->driver_lock); - printk(KERN_CRIT "Resetting OLPC wireless via EC...\n"); - olpc_ec_cmd(0x25, NULL, 0, NULL, 0); - spin_lock_irq(&priv->driver_lock); - } -#endif - } else { - priv->cur_cmd = NULL; - priv->dnld_sent = DNLD_RES_RECEIVED; - lbs_pr_info("requeueing command %x due to timeout (#%d)\n", - le16_to_cpu(cmdnode->cmdbuf->command), priv->nr_retries); - - /* Stick it back at the _top_ of the pending queue - for immediate resubmission */ - list_add(&cmdnode->list, &priv->cmdpendingq); - } - } - priv->cmd_timed_out = 0; - - /* Process hardware events, e.g. card removed, link lost */ - spin_lock_irq(&priv->driver_lock); - while (__kfifo_len(priv->event_fifo)) { - u32 event; - - __kfifo_get(priv->event_fifo, (unsigned char *) &event, - sizeof(event)); - spin_unlock_irq(&priv->driver_lock); - lbs_process_event(priv, event); - spin_lock_irq(&priv->driver_lock); - } - spin_unlock_irq(&priv->driver_lock); - - if (!priv->fw_ready) - continue; - - /* Check if we need to confirm Sleep Request received previously */ - if (priv->psstate == PS_STATE_PRE_SLEEP && - !priv->dnld_sent && !priv->cur_cmd) { - if (priv->connect_status == LBS_CONNECTED) { - lbs_deb_thread("pre-sleep, currenttxskb %p, " - "dnld_sent %d, cur_cmd %p\n", - priv->currenttxskb, priv->dnld_sent, - priv->cur_cmd); - - lbs_ps_confirm_sleep(priv); - } else { - /* workaround for firmware sending - * deauth/linkloss event immediately - * after sleep request; remove this - * after firmware fixes it - */ - priv->psstate = PS_STATE_AWAKE; - lbs_pr_alert("ignore PS_SleepConfirm in " - "non-connected state\n"); - } - } - - /* The PS state is changed during processing of Sleep Request - * event above - */ - if ((priv->psstate == PS_STATE_SLEEP) || - (priv->psstate == PS_STATE_PRE_SLEEP)) - continue; - - /* Execute the next command */ - if (!priv->dnld_sent && !priv->cur_cmd) - lbs_execute_next_command(priv); - - /* Wake-up command waiters which can't sleep in - * lbs_prepare_and_send_command - */ - if (!list_empty(&priv->cmdpendingq)) - wake_up_all(&priv->cmd_pending); - - spin_lock_irq(&priv->driver_lock); - if (!priv->dnld_sent && priv->tx_pending_len > 0) { - int ret = priv->hw_host_to_card(priv, MVMS_DAT, - priv->tx_pending_buf, - priv->tx_pending_len); - if (ret) { - lbs_deb_tx("host_to_card failed %d\n", ret); - priv->dnld_sent = DNLD_RES_RECEIVED; - } - priv->tx_pending_len = 0; - if (!priv->currenttxskb) { - /* We can wake the queues immediately if we aren't - waiting for TX feedback */ - if (priv->connect_status == LBS_CONNECTED) - netif_wake_queue(priv->dev); - if (priv->mesh_dev && - priv->mesh_connect_status == LBS_CONNECTED) - netif_wake_queue(priv->mesh_dev); - } - } - spin_unlock_irq(&priv->driver_lock); - } - - del_timer(&priv->command_timer); - wake_up_all(&priv->cmd_pending); - - lbs_deb_leave(LBS_DEB_THREAD); - return 0; -} - -static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy, - struct cmd_header *cmd) -{ - lbs_deb_enter(LBS_DEB_FW); - - netif_device_detach(priv->dev); - if (priv->mesh_dev) - netif_device_detach(priv->mesh_dev); - - priv->fw_ready = 0; - lbs_deb_leave(LBS_DEB_FW); - return 0; -} - -int lbs_suspend(struct lbs_private *priv) -{ - struct cmd_header cmd; - int ret; - - lbs_deb_enter(LBS_DEB_FW); - - if (priv->wol_criteria == 0xffffffff) { - lbs_pr_info("Suspend attempt without configuring wake params!\n"); - return -EINVAL; - } - - memset(&cmd, 0, sizeof(cmd)); - - ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd, - sizeof(cmd), lbs_suspend_callback, 0); - if (ret) - lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret); - - lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); - return ret; -} -EXPORT_SYMBOL_GPL(lbs_suspend); - -int lbs_resume(struct lbs_private *priv) -{ - lbs_deb_enter(LBS_DEB_FW); - - priv->fw_ready = 1; - - /* Firmware doesn't seem to give us RX packets any more - until we send it some command. Might as well update */ - lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, - 0, 0, NULL); - - netif_device_attach(priv->dev); - if (priv->mesh_dev) - netif_device_attach(priv->mesh_dev); - - lbs_deb_leave(LBS_DEB_FW); - return 0; -} -EXPORT_SYMBOL_GPL(lbs_resume); - -/** - * @brief This function downloads firmware image, gets - * HW spec from firmware and set basic parameters to - * firmware. - * - * @param priv A pointer to struct lbs_private structure - * @return 0 or -1 - */ -static int lbs_setup_firmware(struct lbs_private *priv) -{ - int ret = -1; - - lbs_deb_enter(LBS_DEB_FW); - - /* - * Read MAC address from HW - */ - memset(priv->current_addr, 0xff, ETH_ALEN); - ret = lbs_update_hw_spec(priv); - if (ret) { - ret = -1; - goto done; - } - - lbs_set_mac_control(priv); - - ret = lbs_get_data_rate(priv); - if (ret < 0) { - ret = -1; - goto done; - } - - ret = 0; -done: - lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); - return ret; -} - -/** - * This function handles the timeout of command sending. - * It will re-send the same command again. - */ -static void command_timer_fn(unsigned long data) -{ - struct lbs_private *priv = (struct lbs_private *)data; - unsigned long flags; - - lbs_deb_enter(LBS_DEB_CMD); - spin_lock_irqsave(&priv->driver_lock, flags); - - if (!priv->cur_cmd) { - lbs_pr_info("Command timer expired; no pending command\n"); - goto out; - } - - lbs_pr_info("Command %x timed out\n", le16_to_cpu(priv->cur_cmd->cmdbuf->command)); - - priv->cmd_timed_out = 1; - wake_up_interruptible(&priv->waitq); -out: - spin_unlock_irqrestore(&priv->driver_lock, flags); - lbs_deb_leave(LBS_DEB_CMD); -} - -static void lbs_sync_channel_worker(struct work_struct *work) -{ - struct lbs_private *priv = container_of(work, struct lbs_private, - sync_channel); - - lbs_deb_enter(LBS_DEB_MAIN); - if (lbs_update_channel(priv)) - lbs_pr_info("Channel synchronization failed."); - lbs_deb_leave(LBS_DEB_MAIN); -} - - -static int lbs_init_adapter(struct lbs_private *priv) -{ - size_t bufsize; - int i, ret = 0; - - lbs_deb_enter(LBS_DEB_MAIN); - - /* Allocate buffer to store the BSSID list */ - bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor); - priv->networks = kzalloc(bufsize, GFP_KERNEL); - if (!priv->networks) { - lbs_pr_err("Out of memory allocating beacons\n"); - ret = -1; - goto out; - } - - /* Initialize scan result lists */ - INIT_LIST_HEAD(&priv->network_free_list); - INIT_LIST_HEAD(&priv->network_list); - for (i = 0; i < MAX_NETWORK_COUNT; i++) { - list_add_tail(&priv->networks[i].list, - &priv->network_free_list); - } - - memset(priv->current_addr, 0xff, ETH_ALEN); - - priv->connect_status = LBS_DISCONNECTED; - priv->mesh_connect_status = LBS_DISCONNECTED; - priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM; - priv->mode = IW_MODE_INFRA; - priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL; - priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; - priv->radioon = RADIO_ON; - priv->auto_rate = 1; - priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; - priv->psmode = LBS802_11POWERMODECAM; - priv->psstate = PS_STATE_FULL_POWER; - - mutex_init(&priv->lock); - - setup_timer(&priv->command_timer, command_timer_fn, - (unsigned long)priv); - - INIT_LIST_HEAD(&priv->cmdfreeq); - INIT_LIST_HEAD(&priv->cmdpendingq); - - spin_lock_init(&priv->driver_lock); - init_waitqueue_head(&priv->cmd_pending); - - /* Allocate the command buffers */ - if (lbs_allocate_cmd_buffer(priv)) { - lbs_pr_err("Out of memory allocating command buffers\n"); - ret = -ENOMEM; - goto out; - } - priv->resp_idx = 0; - priv->resp_len[0] = priv->resp_len[1] = 0; - - /* Create the event FIFO */ - priv->event_fifo = kfifo_alloc(sizeof(u32) * 16, GFP_KERNEL, NULL); - if (IS_ERR(priv->event_fifo)) { - lbs_pr_err("Out of memory allocating event FIFO buffer\n"); - ret = -ENOMEM; - goto out; - } - -out: - lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); - - return ret; -} - -static void lbs_free_adapter(struct lbs_private *priv) -{ - lbs_deb_enter(LBS_DEB_MAIN); - - lbs_free_cmd_buffer(priv); - if (priv->event_fifo) - kfifo_free(priv->event_fifo); - del_timer(&priv->command_timer); - kfree(priv->networks); - priv->networks = NULL; - - lbs_deb_leave(LBS_DEB_MAIN); -} - -/** - * @brief This function adds the card. it will probe the - * card, allocate the lbs_priv and initialize the device. - * - * @param card A pointer to card - * @return A pointer to struct lbs_private structure - */ -struct lbs_private *lbs_add_card(void *card, struct device *dmdev) -{ - struct net_device *dev = NULL; - struct lbs_private *priv = NULL; - - lbs_deb_enter(LBS_DEB_MAIN); - - /* Allocate an Ethernet device and register it */ - dev = alloc_etherdev(sizeof(struct lbs_private)); - if (!dev) { - lbs_pr_err("init ethX device failed\n"); - goto done; - } - priv = dev->priv; - - if (lbs_init_adapter(priv)) { - lbs_pr_err("failed to initialize adapter structure.\n"); - goto err_init_adapter; - } - - priv->dev = dev; - priv->card = card; - priv->mesh_open = 0; - priv->infra_open = 0; - - /* Setup the OS Interface to our functions */ - dev->open = lbs_dev_open; - dev->hard_start_xmit = lbs_hard_start_xmit; - dev->stop = lbs_eth_stop; - dev->set_mac_address = lbs_set_mac_address; - dev->tx_timeout = lbs_tx_timeout; - dev->do_ioctl = lbs_do_ioctl; - dev->get_stats = lbs_get_stats; - dev->watchdog_timeo = 5 * HZ; - dev->ethtool_ops = &lbs_ethtool_ops; -#ifdef WIRELESS_EXT - dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def; -#endif - dev->flags |= IFF_BROADCAST | IFF_MULTICAST; - dev->set_multicast_list = lbs_set_multicast_list; - - SET_NETDEV_DEV(dev, dmdev); - - priv->rtap_net_dev = NULL; - - lbs_deb_thread("Starting main thread...\n"); - init_waitqueue_head(&priv->waitq); - priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); - if (IS_ERR(priv->main_thread)) { - lbs_deb_thread("Error creating main thread.\n"); - goto err_init_adapter; - } - - priv->work_thread = create_singlethread_workqueue("lbs_worker"); - INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker); - INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); - INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker); - - sprintf(priv->mesh_ssid, "mesh"); - priv->mesh_ssid_len = 4; - - priv->wol_criteria = 0xffffffff; - priv->wol_gpio = 0xff; - - goto done; - -err_init_adapter: - lbs_free_adapter(priv); - free_netdev(dev); - priv = NULL; - -done: - lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); - return priv; -} -EXPORT_SYMBOL_GPL(lbs_add_card); - - -int lbs_remove_card(struct lbs_private *priv) -{ - struct net_device *dev = priv->dev; - union iwreq_data wrqu; - - lbs_deb_enter(LBS_DEB_MAIN); - - lbs_remove_mesh(priv); - lbs_remove_rtap(priv); - - dev = priv->dev; - - cancel_delayed_work(&priv->scan_work); - cancel_delayed_work(&priv->assoc_work); - destroy_workqueue(priv->work_thread); - - if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { - priv->psmode = LBS802_11POWERMODECAM; - lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); - } - - memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN); - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); - - /* Stop the thread servicing the interrupts */ - priv->surpriseremoved = 1; - kthread_stop(priv->main_thread); - - lbs_free_adapter(priv); - - priv->dev = NULL; - free_netdev(dev); - - lbs_deb_leave(LBS_DEB_MAIN); - return 0; -} -EXPORT_SYMBOL_GPL(lbs_remove_card); - - -int lbs_start_card(struct lbs_private *priv) -{ - struct net_device *dev = priv->dev; - int ret = -1; - - lbs_deb_enter(LBS_DEB_MAIN); - - /* poke the firmware */ - ret = lbs_setup_firmware(priv); - if (ret) - goto done; - - /* init 802.11d */ - lbs_init_11d(priv); - - if (register_netdev(dev)) { - lbs_pr_err("cannot register ethX device\n"); - goto done; - } - if (device_create_file(&dev->dev, &dev_attr_lbs_rtap)) - lbs_pr_err("cannot register lbs_rtap attribute\n"); - - lbs_update_channel(priv); - - /* 5.0.16p0 is known to NOT support any mesh */ - if (priv->fwrelease > 0x05001000) { - /* Enable mesh, if supported, and work out which TLV it uses. - 0x100 + 291 is an unofficial value used in 5.110.20.pXX - 0x100 + 37 is the official value used in 5.110.21.pXX - but we check them in that order because 20.pXX doesn't - give an error -- it just silently fails. */ - - /* 5.110.20.pXX firmware will fail the command if the channel - doesn't match the existing channel. But only if the TLV - is correct. If the channel is wrong, _BOTH_ versions will - give an error to 0x100+291, and allow 0x100+37 to succeed. - It's just that 5.110.20.pXX will not have done anything - useful */ - - priv->mesh_tlv = 0x100 + 291; - if (lbs_mesh_config(priv, 1, priv->curbssparams.channel)) { - priv->mesh_tlv = 0x100 + 37; - if (lbs_mesh_config(priv, 1, priv->curbssparams.channel)) - priv->mesh_tlv = 0; - } - if (priv->mesh_tlv) { - lbs_add_mesh(priv); - - if (device_create_file(&dev->dev, &dev_attr_lbs_mesh)) - lbs_pr_err("cannot register lbs_mesh attribute\n"); - } - } - - lbs_debugfs_init_one(priv, dev); - - lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name); - - ret = 0; - -done: - lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); - return ret; -} -EXPORT_SYMBOL_GPL(lbs_start_card); - - -int lbs_stop_card(struct lbs_private *priv) -{ - struct net_device *dev = priv->dev; - int ret = -1; - struct cmd_ctrl_node *cmdnode; - unsigned long flags; - - lbs_deb_enter(LBS_DEB_MAIN); - - netif_stop_queue(priv->dev); - netif_carrier_off(priv->dev); - - lbs_debugfs_remove_one(priv); - device_remove_file(&dev->dev, &dev_attr_lbs_rtap); - if (priv->mesh_tlv) - device_remove_file(&dev->dev, &dev_attr_lbs_mesh); - - /* Flush pending command nodes */ - spin_lock_irqsave(&priv->driver_lock, flags); - list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { - cmdnode->result = -ENOENT; - cmdnode->cmdwaitqwoken = 1; - wake_up_interruptible(&cmdnode->cmdwait_q); - } - spin_unlock_irqrestore(&priv->driver_lock, flags); - - unregister_netdev(dev); - - lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); - return ret; -} -EXPORT_SYMBOL_GPL(lbs_stop_card); - - -/** - * @brief This function adds mshX interface - * - * @param priv A pointer to the struct lbs_private structure - * @return 0 if successful, -X otherwise - */ -static int lbs_add_mesh(struct lbs_private *priv) -{ - struct net_device *mesh_dev = NULL; - int ret = 0; - - lbs_deb_enter(LBS_DEB_MESH); - - /* Allocate a virtual mesh device */ - if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) { - lbs_deb_mesh("init mshX device failed\n"); - ret = -ENOMEM; - goto done; - } - mesh_dev->priv = priv; - priv->mesh_dev = mesh_dev; - - mesh_dev->open = lbs_dev_open; - mesh_dev->hard_start_xmit = lbs_hard_start_xmit; - mesh_dev->stop = lbs_mesh_stop; - mesh_dev->do_ioctl = lbs_do_ioctl; - mesh_dev->get_stats = lbs_get_stats; - mesh_dev->set_mac_address = lbs_set_mac_address; - mesh_dev->ethtool_ops = &lbs_ethtool_ops; - memcpy(mesh_dev->dev_addr, priv->dev->dev_addr, - sizeof(priv->dev->dev_addr)); - - SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent); - -#ifdef WIRELESS_EXT - mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def; -#endif - /* Register virtual mesh interface */ - ret = register_netdev(mesh_dev); - if (ret) { - lbs_pr_err("cannot register mshX virtual interface\n"); - goto err_free; - } - - ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group); - if (ret) - goto err_unregister; - - /* Everything successful */ - ret = 0; - goto done; - -err_unregister: - unregister_netdev(mesh_dev); - -err_free: - free_netdev(mesh_dev); - -done: - lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret); - return ret; -} - -static void lbs_remove_mesh(struct lbs_private *priv) -{ - struct net_device *mesh_dev; - - - mesh_dev = priv->mesh_dev; - if (!mesh_dev) - return; - - lbs_deb_enter(LBS_DEB_MESH); - netif_stop_queue(mesh_dev); - netif_carrier_off(priv->mesh_dev); - sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group); - unregister_netdev(mesh_dev); - priv->mesh_dev = NULL; - free_netdev(mesh_dev); - lbs_deb_leave(LBS_DEB_MESH); -} - -/** - * @brief This function finds the CFP in - * region_cfp_table based on region and band parameter. - * - * @param region The region code - * @param band The band - * @param cfp_no A pointer to CFP number - * @return A pointer to CFP - */ -struct chan_freq_power *lbs_get_region_cfp_table(u8 region, int *cfp_no) -{ - int i, end; - - lbs_deb_enter(LBS_DEB_MAIN); - - end = ARRAY_SIZE(region_cfp_table); - - for (i = 0; i < end ; i++) { - lbs_deb_main("region_cfp_table[i].region=%d\n", - region_cfp_table[i].region); - if (region_cfp_table[i].region == region) { - *cfp_no = region_cfp_table[i].cfp_no_BG; - lbs_deb_leave(LBS_DEB_MAIN); - return region_cfp_table[i].cfp_BG; - } - } - - lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL"); - return NULL; -} - -int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band) -{ - int ret = 0; - int i = 0; - - struct chan_freq_power *cfp; - int cfp_no; - - lbs_deb_enter(LBS_DEB_MAIN); - - memset(priv->region_channel, 0, sizeof(priv->region_channel)); - - cfp = lbs_get_region_cfp_table(region, &cfp_no); - if (cfp != NULL) { - priv->region_channel[i].nrcfp = cfp_no; - priv->region_channel[i].CFP = cfp; - } else { - lbs_deb_main("wrong region code %#x in band B/G\n", - region); - ret = -1; - goto out; - } - priv->region_channel[i].valid = 1; - priv->region_channel[i].region = region; - priv->region_channel[i].band = band; - i++; -out: - lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); - return ret; -} - -void lbs_queue_event(struct lbs_private *priv, u32 event) -{ - unsigned long flags; - - lbs_deb_enter(LBS_DEB_THREAD); - spin_lock_irqsave(&priv->driver_lock, flags); - - if (priv->psstate == PS_STATE_SLEEP) - priv->psstate = PS_STATE_AWAKE; - - __kfifo_put(priv->event_fifo, (unsigned char *) &event, sizeof(u32)); - - wake_up_interruptible(&priv->waitq); - - spin_unlock_irqrestore(&priv->driver_lock, flags); - lbs_deb_leave(LBS_DEB_THREAD); -} -EXPORT_SYMBOL_GPL(lbs_queue_event); - -void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) -{ - lbs_deb_enter(LBS_DEB_THREAD); - - if (priv->psstate == PS_STATE_SLEEP) - priv->psstate = PS_STATE_AWAKE; - - /* Swap buffers by flipping the response index */ - BUG_ON(resp_idx > 1); - priv->resp_idx = resp_idx; - - wake_up_interruptible(&priv->waitq); - - lbs_deb_leave(LBS_DEB_THREAD); -} -EXPORT_SYMBOL_GPL(lbs_notify_command_response); - -static int __init lbs_init_module(void) -{ - lbs_deb_enter(LBS_DEB_MAIN); - memset(&confirm_sleep, 0, sizeof(confirm_sleep)); - confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); - confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); - confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED); - lbs_debugfs_init(); - lbs_deb_leave(LBS_DEB_MAIN); - return 0; -} - -static void __exit lbs_exit_module(void) -{ - lbs_deb_enter(LBS_DEB_MAIN); - lbs_debugfs_remove(); - lbs_deb_leave(LBS_DEB_MAIN); -} - -/* - * rtap interface support fuctions - */ - -static int lbs_rtap_open(struct net_device *dev) -{ - /* Yes, _stop_ the queue. Because we don't support injection */ - lbs_deb_enter(LBS_DEB_MAIN); - netif_carrier_off(dev); - netif_stop_queue(dev); - lbs_deb_leave(LBS_DEB_LEAVE); - return 0; -} - -static int lbs_rtap_stop(struct net_device *dev) -{ - lbs_deb_enter(LBS_DEB_MAIN); - lbs_deb_leave(LBS_DEB_MAIN); - return 0; -} - -static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - netif_stop_queue(dev); - return NETDEV_TX_BUSY; -} - -static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev) -{ - struct lbs_private *priv = dev->priv; - lbs_deb_enter(LBS_DEB_NET); - return &priv->stats; -} - - -static void lbs_remove_rtap(struct lbs_private *priv) -{ - lbs_deb_enter(LBS_DEB_MAIN); - if (priv->rtap_net_dev == NULL) - return; - unregister_netdev(priv->rtap_net_dev); - free_netdev(priv->rtap_net_dev); - priv->rtap_net_dev = NULL; - lbs_deb_leave(LBS_DEB_MAIN); -} - -static int lbs_add_rtap(struct lbs_private *priv) -{ - int ret = 0; - struct net_device *rtap_dev; - - lbs_deb_enter(LBS_DEB_MAIN); - if (priv->rtap_net_dev) { - ret = -EPERM; - goto out; - } - - rtap_dev = alloc_netdev(0, "rtap%d", ether_setup); - if (rtap_dev == NULL) { - ret = -ENOMEM; - goto out; - } - - memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN); - rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP; - rtap_dev->open = lbs_rtap_open; - rtap_dev->stop = lbs_rtap_stop; - rtap_dev->get_stats = lbs_rtap_get_stats; - rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit; - rtap_dev->set_multicast_list = lbs_set_multicast_list; - rtap_dev->priv = priv; - SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent); - - ret = register_netdev(rtap_dev); - if (ret) { - free_netdev(rtap_dev); - goto out; - } - priv->rtap_net_dev = rtap_dev; - -out: - lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); - return ret; -} - -#ifndef CONFIG_IEEE80211 -const char *escape_essid(const char *essid, u8 essid_len) -{ - static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; - const char *s = essid; - char *d = escaped; - - if (ieee80211_is_empty_essid(essid, essid_len)) { - memcpy(escaped, "<hidden>", sizeof("<hidden>")); - return escaped; - } - - essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); - while (essid_len--) { - if (*s == '\0') { - *d++ = '\\'; - *d++ = '0'; - s++; - } else { - *d++ = *s++; - } - } - *d = '\0'; - return escaped; -} -#endif - -module_init(lbs_init_module); -module_exit(lbs_exit_module); - -MODULE_DESCRIPTION("Libertas WLAN Driver Library"); -MODULE_AUTHOR("Marvell International Ltd."); -MODULE_LICENSE("GPL"); |