diff options
Diffstat (limited to 'drivers/net/wireless/libertas/main.c')
| -rw-r--r-- | drivers/net/wireless/libertas/main.c | 839 |
1 files changed, 376 insertions, 463 deletions
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index c2975c8e2f2..0c02f0483d1 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1,30 +1,29 @@ -/** - * This file contains the major functions in WLAN - * driver. It includes init, exit, open, close and main - * thread etc.. - */ +/* + * This file contains the major functions in WLAN + * driver. It includes init, exit, open, close and main + * thread etc.. + */ -#include <linux/moduleparam.h> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> #include <linux/delay.h> #include <linux/etherdevice.h> +#include <linux/hardirq.h> #include <linux/netdevice.h> #include <linux/if_arp.h> #include <linux/kthread.h> #include <linux/kfifo.h> -#include <linux/stddef.h> -#include <linux/ieee80211.h> -#include <net/iw_handler.h> +#include <linux/slab.h> #include <net/cfg80211.h> #include "host.h" #include "decl.h" #include "dev.h" -#include "wext.h" #include "cfg.h" #include "debugfs.h" -#include "scan.h" -#include "assoc.h" #include "cmd.h" +#include "mesh.h" #define DRIVER_RELEASE_VERSION "323.p0" const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION @@ -39,19 +38,25 @@ unsigned int lbs_debug; EXPORT_SYMBOL_GPL(lbs_debug); module_param_named(libertas_debug, lbs_debug, int, 0644); +unsigned int lbs_disablemesh; +EXPORT_SYMBOL_GPL(lbs_disablemesh); +module_param_named(libertas_disablemesh, lbs_disablemesh, int, 0644); + -/* This global structure is used to send the confirm_sleep command as - * fast as possible down to the firmware. */ +/* + * 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; -/** +/* * the table to keep region code */ u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; -/** +/* * 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. @@ -62,10 +67,10 @@ static u8 fw_data_rates[MAX_RATES] = }; /** - * @brief use index to get the data rate + * lbs_fw_index_to_data_rate - use index to get the data rate * - * @param idx The index of data rate - * @return data rate or 0 + * @idx: The index of data rate + * returns: data rate or 0 */ u32 lbs_fw_index_to_data_rate(u8 idx) { @@ -75,10 +80,10 @@ u32 lbs_fw_index_to_data_rate(u8 idx) } /** - * @brief use rate to get the index + * lbs_data_rate_to_fw_index - use rate to get the index * - * @param rate data rate - * @return index or 0 + * @rate: data rate + * returns: index or 0 */ u8 lbs_data_rate_to_fw_index(u32 rate) { @@ -94,78 +99,81 @@ u8 lbs_data_rate_to_fw_index(u32 rate) return 0; } - -static int lbs_add_rtap(struct lbs_private *priv); -static void lbs_remove_rtap(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) +int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type) { - struct lbs_private *priv = to_net_dev(dev)->ml_priv; - return snprintf(buf, 5, "0x%X\n", priv->monitormode); + int ret = 0; + + switch (type) { + case NL80211_IFTYPE_MONITOR: + ret = lbs_set_monitor_mode(priv, 1); + break; + case NL80211_IFTYPE_STATION: + if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) + ret = lbs_set_monitor_mode(priv, 0); + if (!ret) + ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1); + break; + case NL80211_IFTYPE_ADHOC: + if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) + ret = lbs_set_monitor_mode(priv, 0); + if (!ret) + ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2); + break; + default: + ret = -ENOTSUPP; + } + return ret; } -/** - * 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 lbs_start_iface(struct lbs_private *priv) { - int monitor_mode; - struct lbs_private *priv = to_net_dev(dev)->ml_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_cmd_80211_deauthenticate(priv, - priv->curbssparams.bssid, - WLAN_REASON_DEAUTH_LEAVING); - else if (priv->mode == IW_MODE_ADHOC) - lbs_adhoc_stop(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; - } + struct cmd_ds_802_11_mac_address cmd; + int ret; - /* Wake queues, command thread, etc. */ - lbs_host_to_card_done(priv); + if (priv->power_restore) { + ret = priv->power_restore(priv); + if (ret) + return ret; } - lbs_prepare_and_send_command(priv, - CMD_802_11_MONITOR_MODE, CMD_ACT_SET, - CMD_OPTION_WAITFORRSP, 0, &priv->monitormode); - return strlen(buf); -} + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + memcpy(cmd.macadd, priv->current_addr, ETH_ALEN); -/** - * 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 ); + ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); + if (ret) { + lbs_deb_net("set MAC address failed\n"); + goto err; + } + + ret = lbs_set_iface_type(priv, priv->wdev->iftype); + if (ret) { + lbs_deb_net("set iface type failed\n"); + goto err; + } + + ret = lbs_set_11d_domain_info(priv); + if (ret) { + lbs_deb_net("set 11d domain info failed\n"); + goto err; + } + + lbs_update_channel(priv); + + priv->iface_running = true; + return 0; + +err: + if (priv->power_save) + priv->power_save(priv); + return ret; +} /** - * @brief This function opens the ethX interface + * lbs_dev_open - open the ethX interface * - * @param dev A pointer to net_device structure - * @return 0 or -EBUSY if monitor mode active + * @dev: A pointer to &net_device structure + * returns: 0 or -EBUSY if monitor mode active */ static int lbs_dev_open(struct net_device *dev) { @@ -173,78 +181,96 @@ static int lbs_dev_open(struct net_device *dev) int ret = 0; lbs_deb_enter(LBS_DEB_NET); - - spin_lock_irq(&priv->driver_lock); - - if (priv->monitormode) { - ret = -EBUSY; - goto out; + if (!priv->iface_running) { + ret = lbs_start_iface(priv); + if (ret) + goto out; } - priv->infra_open = 1; + spin_lock_irq(&priv->driver_lock); - if (priv->connect_status == LBS_CONNECTED) - netif_carrier_on(dev); - else - netif_carrier_off(dev); + netif_carrier_off(dev); if (!priv->tx_pending_len) netif_wake_queue(dev); - out: spin_unlock_irq(&priv->driver_lock); + +out: lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); return ret; } -/** - * @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) +static bool lbs_command_queue_empty(struct lbs_private *priv) { - struct lbs_private *priv = dev->ml_priv; + unsigned long flags; + bool ret; + spin_lock_irqsave(&priv->driver_lock, flags); + ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq); + spin_unlock_irqrestore(&priv->driver_lock, flags); + return ret; +} - lbs_deb_enter(LBS_DEB_NET); +int lbs_stop_iface(struct lbs_private *priv) +{ + unsigned long flags; + int ret = 0; - spin_lock_irq(&priv->driver_lock); - priv->infra_open = 0; - netif_stop_queue(dev); - spin_unlock_irq(&priv->driver_lock); + lbs_deb_enter(LBS_DEB_MAIN); - schedule_work(&priv->mcast_work); + spin_lock_irqsave(&priv->driver_lock, flags); + priv->iface_running = false; + kfree_skb(priv->currenttxskb); + priv->currenttxskb = NULL; + priv->tx_pending_len = 0; + spin_unlock_irqrestore(&priv->driver_lock, flags); - lbs_deb_leave(LBS_DEB_NET); - return 0; + cancel_work_sync(&priv->mcast_work); + del_timer_sync(&priv->tx_lockup_timer); + + /* Disable command processing, and wait for all commands to complete */ + lbs_deb_main("waiting for commands to complete\n"); + wait_event(priv->waitq, lbs_command_queue_empty(priv)); + lbs_deb_main("all commands completed\n"); + + if (priv->power_save) + ret = priv->power_save(priv); + + lbs_deb_leave(LBS_DEB_MAIN); + return ret; } -static void lbs_tx_timeout(struct net_device *dev) +/** + * lbs_eth_stop - close the ethX interface + * + * @dev: A pointer to &net_device structure + * returns: 0 + */ +static int lbs_eth_stop(struct net_device *dev) { struct lbs_private *priv = dev->ml_priv; - lbs_deb_enter(LBS_DEB_TX); + lbs_deb_enter(LBS_DEB_NET); - lbs_pr_err("tx watch dog timeout\n"); + if (priv->connect_status == LBS_CONNECTED) + lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING); - dev->trans_start = jiffies; + spin_lock_irq(&priv->driver_lock); + netif_stop_queue(dev); + spin_unlock_irq(&priv->driver_lock); - if (priv->currenttxskb) - lbs_send_tx_feedback(priv, 0); + lbs_update_mcast(priv); + cancel_delayed_work_sync(&priv->scan_work); + if (priv->scan_req) + lbs_scan_done(priv); - /* XX: Shouldn't we also call into the hw-specific driver - to kick it somehow? */ - lbs_host_to_card_done(priv); + netif_carrier_off(priv->dev); - /* 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); + if (!lbs_iface_active(priv)) + lbs_stop_iface(priv); - lbs_deb_leave(LBS_DEB_TX); + lbs_deb_leave(LBS_DEB_NET); + return 0; } void lbs_host_to_card_done(struct lbs_private *priv) @@ -254,13 +280,14 @@ void lbs_host_to_card_done(struct lbs_private *priv) lbs_deb_enter(LBS_DEB_THREAD); spin_lock_irqsave(&priv->driver_lock, flags); + del_timer(&priv->tx_lockup_timer); priv->dnld_sent = DNLD_RES_RECEIVED; /* Wake main thread if commands are pending */ if (!priv->cur_cmd || priv->tx_pending_len > 0) { if (!priv->wakeup_dev_required) - wake_up_interruptible(&priv->waitq); + wake_up(&priv->waitq); } spin_unlock_irqrestore(&priv->driver_lock, flags); @@ -273,29 +300,24 @@ int lbs_set_mac_address(struct net_device *dev, void *addr) int ret = 0; struct lbs_private *priv = dev->ml_priv; struct sockaddr *phwaddr = addr; - struct cmd_ds_802_11_mac_address cmd; lbs_deb_enter(LBS_DEB_NET); + /* + * Can only set MAC address when all interfaces are down, to be written + * to the hardware when one of them is brought up. + */ + if (lbs_iface_active(priv)) + return -EBUSY; + /* 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; } @@ -318,45 +340,49 @@ static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, struct net_device *dev, int nr_addrs) { int i = nr_addrs; - struct dev_mc_list *mc_list; + struct netdev_hw_addr *ha; + int cnt; if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) return nr_addrs; netif_addr_lock_bh(dev); - for (mc_list = dev->mc_list; mc_list; mc_list = mc_list->next) { - if (mac_in_list(cmd->maclist, nr_addrs, mc_list->dmi_addr)) { + cnt = netdev_mc_count(dev); + netdev_for_each_mc_addr(ha, dev) { + if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, - mc_list->dmi_addr); + ha->addr); + cnt--; continue; } if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) break; - memcpy(&cmd->maclist[6*i], mc_list->dmi_addr, ETH_ALEN); + memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, - mc_list->dmi_addr); + ha->addr); i++; + cnt--; } netif_addr_unlock_bh(dev); - if (mc_list) + if (cnt) return -EOVERFLOW; return i; } -static void lbs_set_mcast_worker(struct work_struct *work) +void lbs_update_mcast(struct lbs_private *priv) { - struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); struct cmd_ds_mac_multicast_adr mcast_cmd; - int dev_flags; + int dev_flags = 0; int nr_addrs; int old_mac_control = priv->mac_control; lbs_deb_enter(LBS_DEB_NET); - dev_flags = priv->dev->flags; - if (priv->mesh_dev) + if (netif_running(priv->dev)) + dev_flags |= priv->dev->flags; + if (priv->mesh_dev && netif_running(priv->mesh_dev)) dev_flags |= priv->mesh_dev->flags; if (dev_flags & IFF_PROMISC) { @@ -402,6 +428,12 @@ static void lbs_set_mcast_worker(struct work_struct *work) lbs_deb_leave(LBS_DEB_NET); } +static void lbs_set_mcast_worker(struct work_struct *work) +{ + struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); + lbs_update_mcast(priv); +} + void lbs_set_multicast_list(struct net_device *dev) { struct lbs_private *priv = dev->ml_priv; @@ -410,12 +442,12 @@ void lbs_set_multicast_list(struct net_device *dev) } /** - * @brief This function handles the major jobs in the LBS driver. + * lbs_thread - 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 + * @data: A pointer to &lbs_thread structure + * returns: 0 */ static int lbs_thread(void *data) { @@ -536,31 +568,17 @@ static int lbs_thread(void *data) if (priv->cmd_timed_out && priv->cur_cmd) { struct cmd_ctrl_node *cmdnode = priv->cur_cmd; - if (++priv->nr_retries > 3) { - lbs_pr_info("Excessive timeouts submitting " - "command 0x%04x\n", - le16_to_cpu(cmdnode->cmdbuf->command)); - lbs_complete_command(priv, cmdnode, -ETIMEDOUT); - priv->nr_retries = 0; - if (priv->reset_card) - priv->reset_card(priv); - } else { - priv->cur_cmd = NULL; - priv->dnld_sent = DNLD_RES_RECEIVED; - lbs_pr_info("requeueing command 0x%04x 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); - } + netdev_info(dev, "Timeout submitting command 0x%04x\n", + le16_to_cpu(cmdnode->cmdbuf->command)); + lbs_complete_command(priv, cmdnode, -ETIMEDOUT); + + /* Reset card, but only when it isn't in the process + * of being shutdown anyway. */ + if (!dev->dismantle && priv->reset_card) + priv->reset_card(priv); } priv->cmd_timed_out = 0; - - if (!priv->fw_ready) continue; @@ -581,8 +599,8 @@ static int lbs_thread(void *data) * after firmware fixes it */ priv->psstate = PS_STATE_AWAKE; - lbs_pr_alert("ignore PS_SleepConfirm in " - "non-connected state\n"); + netdev_alert(dev, + "ignore PS_SleepConfirm in non-connected state\n"); } } @@ -600,12 +618,6 @@ static int lbs_thread(void *data) 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, @@ -614,6 +626,9 @@ static int lbs_thread(void *data) if (ret) { lbs_deb_tx("host_to_card failed %d\n", ret); priv->dnld_sent = DNLD_RES_RECEIVED; + } else { + mod_timer(&priv->tx_lockup_timer, + jiffies + (HZ * 5)); } priv->tx_pending_len = 0; if (!priv->currenttxskb) { @@ -622,7 +637,7 @@ static int lbs_thread(void *data) if (priv->connect_status == LBS_CONNECTED) netif_wake_queue(priv->dev); if (priv->mesh_dev && - priv->mesh_connect_status == LBS_CONNECTED) + netif_running(priv->mesh_dev)) netif_wake_queue(priv->mesh_dev); } } @@ -630,137 +645,177 @@ static int lbs_thread(void *data) } del_timer(&priv->command_timer); + del_timer(&priv->tx_lockup_timer); del_timer(&priv->auto_deepsleep_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_setup_firmware - gets the HW spec from the firmware and sets + * some basic parameters + * + * @priv: A pointer to &struct lbs_private structure + * returns: 0 or -1 + */ +static int lbs_setup_firmware(struct lbs_private *priv) { + int ret = -1; + s16 curlevel = 0, minlevel = 0, maxlevel = 0; + lbs_deb_enter(LBS_DEB_FW); - netif_device_detach(priv->dev); - if (priv->mesh_dev) - netif_device_detach(priv->mesh_dev); + /* Read MAC address from firmware */ + memset(priv->current_addr, 0xff, ETH_ALEN); + ret = lbs_update_hw_spec(priv); + if (ret) + goto done; - priv->fw_ready = 0; - lbs_deb_leave(LBS_DEB_FW); - return 0; + /* Read power levels if available */ + ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); + if (ret == 0) { + priv->txpower_cur = curlevel; + priv->txpower_min = minlevel; + priv->txpower_max = maxlevel; + } + + /* Send cmd to FW to enable 11D function */ + ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1); + if (ret) + goto done; + + ret = lbs_set_mac_control_sync(priv); +done: + lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); + return ret; } 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; + if (priv->is_deep_sleep) { + ret = lbs_set_deep_sleep(priv, 0); + if (ret) { + netdev_err(priv->dev, + "deep sleep cancellation failed: %d\n", ret); + return ret; + } + priv->deep_sleep_required = 1; } - memset(&cmd, 0, sizeof(cmd)); + ret = lbs_set_host_sleep(priv, 1); - 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); + netif_device_detach(priv->dev); + if (priv->mesh_dev) + netif_device_detach(priv->mesh_dev); lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); return ret; } EXPORT_SYMBOL_GPL(lbs_suspend); -void lbs_resume(struct lbs_private *priv) +int lbs_resume(struct lbs_private *priv) { - lbs_deb_enter(LBS_DEB_FW); + int ret; - priv->fw_ready = 1; + lbs_deb_enter(LBS_DEB_FW); - /* 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); + ret = lbs_set_host_sleep(priv, 0); netif_device_attach(priv->dev); if (priv->mesh_dev) netif_device_attach(priv->mesh_dev); - lbs_deb_leave(LBS_DEB_FW); + if (priv->deep_sleep_required) { + priv->deep_sleep_required = 0; + ret = lbs_set_deep_sleep(priv, 1); + if (ret) + netdev_err(priv->dev, + "deep sleep activation failed: %d\n", ret); + } + + if (priv->setup_fw_on_resume) + ret = lbs_setup_firmware(priv); + + lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); + return ret; } EXPORT_SYMBOL_GPL(lbs_resume); /** - * @brief This function gets the HW spec from the firmware and sets - * some basic parameters. + * lbs_cmd_timeout_handler - handles the timeout of command sending. + * It will re-send the same command again. * - * @param priv A pointer to struct lbs_private structure - * @return 0 or -1 + * @data: &struct lbs_private pointer */ -static int lbs_setup_firmware(struct lbs_private *priv) +static void lbs_cmd_timeout_handler(unsigned long data) { - int ret = -1; - s16 curlevel = 0, minlevel = 0, maxlevel = 0; + struct lbs_private *priv = (struct lbs_private *)data; + unsigned long flags; - lbs_deb_enter(LBS_DEB_FW); + lbs_deb_enter(LBS_DEB_CMD); + spin_lock_irqsave(&priv->driver_lock, flags); - /* Read MAC address from firmware */ - memset(priv->current_addr, 0xff, ETH_ALEN); - ret = lbs_update_hw_spec(priv); - if (ret) - goto done; + if (!priv->cur_cmd) + goto out; - /* Read power levels if available */ - ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); - if (ret == 0) { - priv->txpower_cur = curlevel; - priv->txpower_min = minlevel; - priv->txpower_max = maxlevel; - } + netdev_info(priv->dev, "command 0x%04x timed out\n", + le16_to_cpu(priv->cur_cmd->cmdbuf->command)); - lbs_set_mac_control(priv); -done: - lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); - return ret; + priv->cmd_timed_out = 1; + + /* + * If the device didn't even acknowledge the command, reset the state + * so that we don't block all future commands due to this one timeout. + */ + if (priv->dnld_sent == DNLD_CMD_SENT) + priv->dnld_sent = DNLD_RES_RECEIVED; + + wake_up(&priv->waitq); +out: + spin_unlock_irqrestore(&priv->driver_lock, flags); + lbs_deb_leave(LBS_DEB_CMD); } /** - * This function handles the timeout of command sending. - * It will re-send the same command again. + * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames + * to the hardware. This is known to frequently happen with SD8686 when + * waking up after a Wake-on-WLAN-triggered resume. + * + * @data: &struct lbs_private pointer */ -static void command_timer_fn(unsigned long data) +static void lbs_tx_lockup_handler(unsigned long data) { struct lbs_private *priv = (struct lbs_private *)data; unsigned long flags; - lbs_deb_enter(LBS_DEB_CMD); + lbs_deb_enter(LBS_DEB_TX); spin_lock_irqsave(&priv->driver_lock, flags); - if (!priv->cur_cmd) - goto out; - - lbs_pr_info("command 0x%04x timed out\n", - le16_to_cpu(priv->cur_cmd->cmdbuf->command)); + netdev_info(priv->dev, "TX lockup detected\n"); + if (priv->reset_card) + priv->reset_card(priv); - priv->cmd_timed_out = 1; + priv->dnld_sent = DNLD_RES_RECEIVED; wake_up_interruptible(&priv->waitq); -out: + spin_unlock_irqrestore(&priv->driver_lock, flags); - lbs_deb_leave(LBS_DEB_CMD); + lbs_deb_leave(LBS_DEB_TX); } /** - * This function put the device back to deep sleep mode when timer expires - * and no activity (command, event, data etc.) is detected. + * auto_deepsleep_timer_fn - put the device back to deep sleep mode when + * timer expires and no activity (command, event, data etc.) is detected. + * @data: &struct lbs_private pointer + * returns: N/A */ static void auto_deepsleep_timer_fn(unsigned long data) { struct lbs_private *priv = (struct lbs_private *)data; - int ret; lbs_deb_enter(LBS_DEB_CMD); @@ -768,14 +823,15 @@ static void auto_deepsleep_timer_fn(unsigned long data) priv->is_activity_detected = 0; } else { if (priv->is_auto_deep_sleep_enabled && - (!priv->wakeup_dev_required) && - (priv->connect_status != LBS_CONNECTED)) { + (!priv->wakeup_dev_required) && + (priv->connect_status != LBS_CONNECTED)) { + struct cmd_header cmd; + lbs_deb_main("Entering auto deep sleep mode...\n"); - ret = lbs_prepare_and_send_command(priv, - CMD_802_11_DEEP_SLEEP, 0, - 0, 0, NULL); - if (ret) - lbs_pr_err("Enter Deep Sleep command failed\n"); + memset(&cmd, 0, sizeof(cmd)); + cmd.size = cpu_to_le16(sizeof(cmd)); + lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd, + sizeof(cmd)); } } mod_timer(&priv->auto_deepsleep_timer , jiffies + @@ -809,63 +865,36 @@ int lbs_exit_auto_deep_sleep(struct lbs_private *priv) return 0; } -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; + int ret; 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->channel = DEFAULT_AD_HOC_CHANNEL; priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; priv->radio_on = 1; - priv->enablehwauto = 1; - priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; priv->psmode = LBS802_11POWERMODECAM; priv->psstate = PS_STATE_FULL_POWER; priv->is_deep_sleep = 0; priv->is_auto_deep_sleep_enabled = 0; + priv->deep_sleep_required = 0; priv->wakeup_dev_required = 0; init_waitqueue_head(&priv->ds_awake_q); - + init_waitqueue_head(&priv->scan_q); + priv->authtype_auto = 1; + priv->is_host_sleep_configured = 0; + priv->is_host_sleep_activated = 0; + init_waitqueue_head(&priv->host_sleep_q); + init_waitqueue_head(&priv->fw_waitq); mutex_init(&priv->lock); - setup_timer(&priv->command_timer, command_timer_fn, + setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, + (unsigned long)priv); + setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler, (unsigned long)priv); setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, (unsigned long)priv); @@ -874,11 +903,10 @@ static int lbs_init_adapter(struct lbs_private *priv) 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"); + pr_err("Out of memory allocating command buffers\n"); ret = -ENOMEM; goto out; } @@ -888,7 +916,7 @@ static int lbs_init_adapter(struct lbs_private *priv) /* Create the event FIFO */ ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL); if (ret) { - lbs_pr_err("Out of memory allocating event FIFO buffer\n"); + pr_err("Out of memory allocating event FIFO buffer\n"); goto out; } @@ -905,9 +933,8 @@ static void lbs_free_adapter(struct lbs_private *priv) lbs_free_cmd_buffer(priv); kfifo_free(&priv->event_fifo); del_timer(&priv->command_timer); + del_timer(&priv->tx_lockup_timer); del_timer(&priv->auto_deepsleep_timer); - kfree(priv->networks); - priv->networks = NULL; lbs_deb_leave(LBS_DEB_MAIN); } @@ -917,18 +944,18 @@ static const struct net_device_ops lbs_netdev_ops = { .ndo_stop = lbs_eth_stop, .ndo_start_xmit = lbs_hard_start_xmit, .ndo_set_mac_address = lbs_set_mac_address, - .ndo_tx_timeout = lbs_tx_timeout, - .ndo_set_multicast_list = lbs_set_multicast_list, + .ndo_set_rx_mode = lbs_set_multicast_list, .ndo_change_mtu = eth_change_mtu, .ndo_validate_addr = eth_validate_addr, }; /** - * @brief This function adds the card. it will probe the + * lbs_add_card - 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 + * @card: A pointer to card + * @dmdev: A pointer to &struct device + * returns: A pointer to &struct lbs_private structure */ struct lbs_private *lbs_add_card(void *card, struct device *dmdev) { @@ -941,20 +968,19 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev) /* Allocate an Ethernet device and register it */ wdev = lbs_cfg_alloc(dmdev); if (IS_ERR(wdev)) { - lbs_pr_err("cfg80211 init failed\n"); + pr_err("cfg80211 init failed\n"); goto done; } - /* TODO? */ + wdev->iftype = NL80211_IFTYPE_STATION; priv = wdev_priv(wdev); priv->wdev = wdev; if (lbs_init_adapter(priv)) { - lbs_pr_err("failed to initialize adapter structure.\n"); + pr_err("failed to initialize adapter structure\n"); goto err_wdev; } - //TODO? dev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES); dev = alloc_netdev(0, "wlan%d", ether_setup); if (!dev) { dev_err(dmdev, "no memory for network device instance\n"); @@ -970,20 +996,10 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev) dev->netdev_ops = &lbs_netdev_ops; dev->watchdog_timeo = 5 * HZ; dev->ethtool_ops = &lbs_ethtool_ops; -#ifdef WIRELESS_EXT - dev->wireless_handlers = &lbs_handler_def; -#endif dev->flags |= IFF_BROADCAST | IFF_MULTICAST; - - // TODO: kzalloc + iwm_init_default_profile(iwm, iwm->umac_profile); ?? - - priv->card = card; - priv->infra_open = 0; - - priv->rtap_net_dev = NULL; strcpy(dev->name, "wlan%d"); lbs_deb_thread("Starting main thread...\n"); @@ -995,17 +1011,12 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev) } 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->mcast_work, lbs_set_mcast_worker); - INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker); - - priv->mesh_open = 0; - sprintf(priv->mesh_ssid, "mesh"); - priv->mesh_ssid_len = 4; - priv->wol_criteria = 0xffffffff; + priv->wol_criteria = EHS_REMOVE_WAKEUP; priv->wol_gpio = 0xff; + priv->wol_gap = 20; + priv->ehs_remove_supported = true; goto done; @@ -1034,13 +1045,11 @@ void lbs_remove_card(struct lbs_private *priv) lbs_deb_enter(LBS_DEB_MAIN); lbs_remove_mesh(priv); - lbs_remove_rtap(priv); - dev = priv->dev; + if (priv->wiphy_registered) + lbs_scan_deinit(priv); - cancel_delayed_work_sync(&priv->scan_work); - cancel_delayed_work_sync(&priv->assoc_work); - cancel_work_sync(&priv->mcast_work); + lbs_wait_for_firmware_load(priv); /* worker thread destruction blocks on the in-flight command which * should have been cleared already in lbs_stop_card(). @@ -1051,24 +1060,24 @@ void lbs_remove_card(struct lbs_private *priv) if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { priv->psmode = LBS802_11POWERMODECAM; - lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); + lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); } - lbs_send_disconnect_notification(priv); - if (priv->is_deep_sleep) { priv->is_deep_sleep = 0; wake_up_interruptible(&priv->ds_awake_q); } + priv->is_host_sleep_configured = 0; + priv->is_host_sleep_activated = 0; + wake_up_interruptible(&priv->host_sleep_q); + /* Stop the thread servicing the interrupts */ priv->surpriseremoved = 1; kthread_stop(priv->main_thread); lbs_free_adapter(priv); lbs_cfg_free(priv); - - priv->dev = NULL; free_netdev(dev); lbs_deb_leave(LBS_DEB_MAIN); @@ -1076,6 +1085,17 @@ void lbs_remove_card(struct lbs_private *priv) EXPORT_SYMBOL_GPL(lbs_remove_card); +int lbs_rtap_supported(struct lbs_private *priv) +{ + if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) + return 1; + + /* newer firmware use a capability mask */ + return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && + (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)); +} + + int lbs_start_card(struct lbs_private *priv) { struct net_device *dev = priv->dev; @@ -1088,26 +1108,22 @@ int lbs_start_card(struct lbs_private *priv) if (ret) goto done; + if (!lbs_disablemesh) + lbs_init_mesh(priv); + else + pr_info("%s: mesh disabled\n", dev->name); + if (lbs_cfg_register(priv)) { - lbs_pr_err("cannot register device\n"); + pr_err("cannot register device\n"); goto done; } - lbs_update_channel(priv); - - /* - * While rtap isn't related to mesh, only mesh-enabled - * firmware implements the rtap functionality via - * CMD_802_11_MONITOR_MODE. - */ - if (lbs_init_mesh(priv)) { - if (device_create_file(&dev->dev, &dev_attr_lbs_rtap)) - lbs_pr_err("cannot register lbs_rtap attribute\n"); - } + if (lbs_mesh_activated(priv)) + lbs_start_mesh(priv); lbs_debugfs_init_one(priv, dev); - lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name); + netdev_info(dev, "Marvell WLAN 802.11 adapter\n"); ret = 0; @@ -1121,8 +1137,6 @@ EXPORT_SYMBOL_GPL(lbs_start_card); void lbs_stop_card(struct lbs_private *priv) { struct net_device *dev; - struct cmd_ctrl_node *cmdnode; - unsigned long flags; lbs_deb_enter(LBS_DEB_MAIN); @@ -1130,36 +1144,16 @@ void lbs_stop_card(struct lbs_private *priv) goto out; dev = priv->dev; + /* If the netdev isn't registered, it means that lbs_start_card() was + * never called so we have nothing to do here. */ + if (dev->reg_state != NETREG_REGISTERED) + goto out; + netif_stop_queue(dev); netif_carrier_off(dev); lbs_debugfs_remove_one(priv); - if (lbs_deinit_mesh(priv)) - device_remove_file(&dev->dev, &dev_attr_lbs_rtap); - - /* Delete the timeout of the currently processing command */ - del_timer_sync(&priv->command_timer); - del_timer_sync(&priv->auto_deepsleep_timer); - - /* Flush pending command nodes */ - spin_lock_irqsave(&priv->driver_lock, flags); - lbs_deb_main("clearing pending commands\n"); - list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { - cmdnode->result = -ENOENT; - cmdnode->cmdwaitqwoken = 1; - wake_up_interruptible(&cmdnode->cmdwait_q); - } - - /* Flush the command the card is currently processing */ - if (priv->cur_cmd) { - lbs_deb_main("clearing current command\n"); - priv->cur_cmd->result = -ENOENT; - priv->cur_cmd->cmdwaitqwoken = 1; - wake_up_interruptible(&priv->cur_cmd->cmdwait_q); - } - lbs_deb_main("done clearing commands\n"); - spin_unlock_irqrestore(&priv->driver_lock, flags); - + lbs_deinit_mesh(priv); unregister_netdev(dev); out: @@ -1180,7 +1174,7 @@ void lbs_queue_event(struct lbs_private *priv, u32 event) kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32)); - wake_up_interruptible(&priv->waitq); + wake_up(&priv->waitq); spin_unlock_irqrestore(&priv->driver_lock, flags); lbs_deb_leave(LBS_DEB_THREAD); @@ -1198,7 +1192,7 @@ void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) BUG_ON(resp_idx > 1); priv->resp_idx = resp_idx; - wake_up_interruptible(&priv->waitq); + wake_up(&priv->waitq); lbs_deb_leave(LBS_DEB_THREAD); } @@ -1210,7 +1204,7 @@ static int __init lbs_init_module(void) 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); + confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED); lbs_debugfs_init(); lbs_deb_leave(LBS_DEB_MAIN); return 0; @@ -1223,87 +1217,6 @@ static void __exit lbs_exit_module(void) 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 netdev_tx_t lbs_rtap_hard_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - netif_stop_queue(dev); - return NETDEV_TX_BUSY; -} - -static void lbs_remove_rtap(struct lbs_private *priv) -{ - lbs_deb_enter(LBS_DEB_MAIN); - if (priv->rtap_net_dev == NULL) - goto out; - unregister_netdev(priv->rtap_net_dev); - free_netdev(priv->rtap_net_dev); - priv->rtap_net_dev = NULL; -out: - lbs_deb_leave(LBS_DEB_MAIN); -} - -static const struct net_device_ops rtap_netdev_ops = { - .ndo_open = lbs_rtap_open, - .ndo_stop = lbs_rtap_stop, - .ndo_start_xmit = lbs_rtap_hard_start_xmit, -}; - -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->netdev_ops = &rtap_netdev_ops; - rtap_dev->ml_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; -} - module_init(lbs_init_module); module_exit(lbs_exit_module); |