diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex/sta_ioctl.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/sta_ioctl.c | 2360 |
1 files changed, 2360 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c new file mode 100644 index 000000000000..b163507b1fe0 --- /dev/null +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -0,0 +1,2360 @@ +/* + * Marvell Wireless LAN device driver: functions for station ioctl + * + * Copyright (C) 2011, Marvell International Ltd. + * + * This software file (the "File") is distributed by Marvell International + * Ltd. under the terms of the GNU General Public License Version 2, June 1991 + * (the "License"). You may use, redistribute and/or modify this File in + * accordance with the terms and conditions of the License, a copy of which + * is available by writing to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the + * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. + * + * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE + * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE + * ARE EXPRESSLY DISCLAIMED. The License provides additional details about + * this warranty disclaimer. + */ + +#include "decl.h" +#include "ioctl.h" +#include "util.h" +#include "fw.h" +#include "main.h" +#include "wmm.h" +#include "11n.h" +#include "cfg80211.h" + +/* + * Copies the multicast address list from device to driver. + * + * This function does not validate the destination memory for + * size, and the calling function must ensure enough memory is + * available. + */ +static int +mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, + struct net_device *dev) +{ + int i = 0; + struct netdev_hw_addr *ha; + + netdev_for_each_mc_addr(ha, dev) + memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN); + + return i; +} + +/* + * Allocate and fills a wait queue with proper parameters. + * + * This function needs to be called before an IOCTL request can be made. + * It can handle the following wait options: + * MWIFIEX_NO_WAIT - Waiting is disabled + * MWIFIEX_IOCTL_WAIT - Waiting is done on IOCTL wait queue + * MWIFIEX_CMD_WAIT - Waiting is done on command wait queue + * MWIFIEX_WSTATS_WAIT - Waiting is done on stats wait queue + */ +struct mwifiex_wait_queue * +mwifiex_alloc_fill_wait_queue(struct mwifiex_private *priv, + u8 wait_option) +{ + struct mwifiex_wait_queue *wait = NULL; + + wait = (struct mwifiex_wait_queue *) + kzalloc(sizeof(struct mwifiex_wait_queue), GFP_ATOMIC); + if (!wait) { + dev_err(priv->adapter->dev, "%s: fail to alloc buffer\n", + __func__); + return wait; + } + + wait->bss_index = priv->bss_index; + + switch (wait_option) { + case MWIFIEX_NO_WAIT: + wait->enabled = 0; + break; + case MWIFIEX_IOCTL_WAIT: + priv->ioctl_wait_q_woken = false; + wait->start_time = jiffies; + wait->wait = &priv->ioctl_wait_q; + wait->condition = &priv->ioctl_wait_q_woken; + wait->enabled = 1; + break; + case MWIFIEX_CMD_WAIT: + priv->cmd_wait_q_woken = false; + wait->start_time = jiffies; + wait->wait = &priv->cmd_wait_q; + wait->condition = &priv->cmd_wait_q_woken; + wait->enabled = 1; + break; + case MWIFIEX_WSTATS_WAIT: + priv->w_stats_wait_q_woken = false; + wait->start_time = jiffies; + wait->wait = &priv->w_stats_wait_q; + wait->condition = &priv->w_stats_wait_q_woken; + wait->enabled = 1; + break; + } + + return wait; +} + +/* + * Wait queue completion handler. + * + * This function waits on a particular wait queue. + * For NO_WAIT option, it returns immediately. It also cancels the + * pending IOCTL request after waking up, in case of errors. + */ +static void +mwifiex_wait_ioctl_complete(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u8 wait_option) +{ + bool cancel_flag = false; + + switch (wait_option) { + case MWIFIEX_NO_WAIT: + break; + case MWIFIEX_IOCTL_WAIT: + wait_event_interruptible(priv->ioctl_wait_q, + priv->ioctl_wait_q_woken); + if (!priv->ioctl_wait_q_woken) + cancel_flag = true; + break; + case MWIFIEX_CMD_WAIT: + wait_event_interruptible(priv->cmd_wait_q, + priv->cmd_wait_q_woken); + if (!priv->cmd_wait_q_woken) + cancel_flag = true; + break; + case MWIFIEX_WSTATS_WAIT: + wait_event_interruptible(priv->w_stats_wait_q, + priv->w_stats_wait_q_woken); + if (!priv->w_stats_wait_q_woken) + cancel_flag = true; + break; + } + if (cancel_flag) { + mwifiex_cancel_pending_ioctl(priv->adapter, wait); + dev_dbg(priv->adapter->dev, "cmd: IOCTL cancel: wait=%p, wait_option=%d\n", + wait, wait_option); + } + + return; +} + +/* + * The function waits for the request to complete and issues the + * completion handler, if required. + */ +int mwifiex_request_ioctl(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + int status, u8 wait_option) +{ + switch (status) { + case -EINPROGRESS: + dev_dbg(priv->adapter->dev, "cmd: IOCTL pending: wait=%p, wait_option=%d\n", + wait, wait_option); + atomic_inc(&priv->adapter->ioctl_pending); + /* Status pending, wake up main process */ + queue_work(priv->adapter->workqueue, &priv->adapter->main_work); + + /* Wait for completion */ + if (wait_option) { + mwifiex_wait_ioctl_complete(priv, wait, wait_option); + status = wait->status; + } + break; + case 0: + case -1: + case -EBUSY: + default: + break; + } + return status; +} +EXPORT_SYMBOL_GPL(mwifiex_request_ioctl); + +/* + * IOCTL request handler to set/get MAC address. + * + * This function prepares the correct firmware command and + * issues it to get the extended version information. + */ +static int mwifiex_bss_ioctl_mac_address(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u8 action, u8 *mac) +{ + int ret = 0; + + if ((action == HostCmd_ACT_GEN_GET) && mac) { + memcpy(mac, priv->curr_addr, ETH_ALEN); + return 0; + } + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, + action, 0, wait, mac); + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * Sends IOCTL request to set MAC address. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_request_set_mac_address(struct mwifiex_private *priv) +{ + struct mwifiex_wait_queue *wait = NULL; + int status = 0; + u8 wait_option = MWIFIEX_CMD_WAIT; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + status = mwifiex_bss_ioctl_mac_address(priv, wait, HostCmd_ACT_GEN_SET, + NULL); + + status = mwifiex_request_ioctl(priv, wait, status, wait_option); + if (!status) + memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); + else + dev_err(priv->adapter->dev, "set mac address failed: status=%d" + " error_code=%#x\n", status, wait->status); + + kfree(wait); + return status; +} + +/* + * IOCTL request handler to set multicast list. + * + * This function prepares the correct firmware command and + * issues it to set the multicast list. + * + * This function can be used to enable promiscuous mode, or enable all + * multicast packets, or to enable selective multicast. + */ +static int +mwifiex_bss_ioctl_multicast_list(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u16 action, + struct mwifiex_multicast_list *mcast_list) +{ + int ret = 0; + u16 old_pkt_filter; + + old_pkt_filter = priv->curr_pkt_filter; + if (action == HostCmd_ACT_GEN_GET) + return -1; + + if (mcast_list->mode == MWIFIEX_PROMISC_MODE) { + dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n"); + priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; + priv->curr_pkt_filter &= + ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; + } else { + /* Multicast */ + priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; + if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) { + dev_dbg(priv->adapter->dev, + "info: Enabling All Multicast!\n"); + priv->curr_pkt_filter |= + HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; + } else { + priv->curr_pkt_filter &= + ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; + if (mcast_list->num_multicast_addr) { + dev_dbg(priv->adapter->dev, + "info: Set multicast list=%d\n", + mcast_list->num_multicast_addr); + /* Set multicast addresses to firmware */ + if (old_pkt_filter == priv->curr_pkt_filter) { + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, + HostCmd_CMD_MAC_MULTICAST_ADR, + action, 0, wait, mcast_list); + if (!ret) + ret = -EINPROGRESS; + } else { + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, + HostCmd_CMD_MAC_MULTICAST_ADR, + action, 0, NULL, + mcast_list); + } + } + } + } + dev_dbg(priv->adapter->dev, + "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n", + old_pkt_filter, priv->curr_pkt_filter); + if (old_pkt_filter != priv->curr_pkt_filter) { + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_MAC_CONTROL, action, + 0, wait, &priv->curr_pkt_filter); + if (!ret) + ret = -EINPROGRESS; + } + + return ret; +} + +/* + * Sends IOCTL request to set multicast list. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +void +mwifiex_request_set_multicast_list(struct mwifiex_private *priv, + struct net_device *dev) +{ + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_multicast_list mcast_list; + u8 wait_option = MWIFIEX_NO_WAIT; + int status = 0; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return; + + if (dev->flags & IFF_PROMISC) { + mcast_list.mode = MWIFIEX_PROMISC_MODE; + } else if (dev->flags & IFF_ALLMULTI || + netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { + mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; + } else { + mcast_list.mode = MWIFIEX_MULTICAST_MODE; + if (netdev_mc_count(dev)) + mcast_list.num_multicast_addr = + mwifiex_copy_mcast_addr(&mcast_list, dev); + } + status = mwifiex_bss_ioctl_multicast_list(priv, wait, + HostCmd_ACT_GEN_SET, + &mcast_list); + + status = mwifiex_request_ioctl(priv, wait, status, wait_option); + if (wait && status != -EINPROGRESS) + kfree(wait); + + return; +} + +/* + * IOCTL request handler to disconnect from a BSS/IBSS. + */ +static int mwifiex_bss_ioctl_stop(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, u8 *mac) +{ + return mwifiex_deauthenticate(priv, wait, mac); +} + +/* + * Sends IOCTL request to disconnect from a BSS. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_disconnect(struct mwifiex_private *priv, u8 wait_option, u8 *mac) +{ + struct mwifiex_wait_queue *wait = NULL; + int status = 0; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + status = mwifiex_bss_ioctl_stop(priv, wait, mac); + + status = mwifiex_request_ioctl(priv, wait, status, wait_option); + + kfree(wait); + return status; +} +EXPORT_SYMBOL_GPL(mwifiex_disconnect); + +/* + * IOCTL request handler to join a BSS/IBSS. + * + * In Ad-Hoc mode, the IBSS is created if not found in scan list. + * In both Ad-Hoc and infra mode, an deauthentication is performed + * first. + */ +static int mwifiex_bss_ioctl_start(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ssid_bssid *ssid_bssid) +{ + int ret = 0; + struct mwifiex_adapter *adapter = priv->adapter; + s32 i = -1; + + priv->scan_block = false; + if (!ssid_bssid) + return -1; + + if (priv->bss_mode == NL80211_IFTYPE_STATION) { + /* Infra mode */ + ret = mwifiex_deauthenticate(priv, NULL, NULL); + if (ret) + return ret; + + /* Search for the requested SSID in the scan table */ + if (ssid_bssid->ssid.ssid_len) + i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid, + NULL, NL80211_IFTYPE_STATION); + else + i = mwifiex_find_bssid_in_list(priv, + (u8 *) &ssid_bssid->bssid, + NL80211_IFTYPE_STATION); + if (i < 0) + return -1; + + dev_dbg(adapter->dev, + "info: SSID found in scan list ... associating...\n"); + + /* Clear any past association response stored for + * application retrieval */ + priv->assoc_rsp_size = 0; + ret = mwifiex_associate(priv, wait, &adapter->scan_table[i]); + if (ret) + return ret; + } else { + /* Adhoc mode */ + /* If the requested SSID matches current SSID, return */ + if (ssid_bssid->ssid.ssid_len && + (!mwifiex_ssid_cmp + (&priv->curr_bss_params.bss_descriptor.ssid, + &ssid_bssid->ssid))) + return 0; + + /* Exit Adhoc mode first */ + dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n"); + ret = mwifiex_deauthenticate(priv, NULL, NULL); + if (ret) + return ret; + + priv->adhoc_is_link_sensed = false; + + /* Search for the requested network in the scan table */ + if (ssid_bssid->ssid.ssid_len) + i = mwifiex_find_ssid_in_list(priv, + &ssid_bssid->ssid, NULL, + NL80211_IFTYPE_ADHOC); + else + i = mwifiex_find_bssid_in_list(priv, + (u8 *)&ssid_bssid->bssid, + NL80211_IFTYPE_ADHOC); + + if (i >= 0) { + dev_dbg(adapter->dev, "info: network found in scan" + " list. Joining...\n"); + ret = mwifiex_adhoc_join(priv, wait, + &adapter->scan_table[i]); + if (ret) + return ret; + } else { /* i >= 0 */ + dev_dbg(adapter->dev, "info: Network not found in " + "the list, creating adhoc with ssid = %s\n", + ssid_bssid->ssid.ssid); + ret = mwifiex_adhoc_start(priv, wait, + &ssid_bssid->ssid); + if (ret) + return ret; + } + } + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * Sends IOCTL request to connect with a BSS. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_bss_start(struct mwifiex_private *priv, u8 wait_option, + struct mwifiex_ssid_bssid *ssid_bssid) +{ + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_ssid_bssid tmp_ssid_bssid; + int status = 0; + + /* Stop the O.S. TX queue if needed */ + if (!netif_queue_stopped(priv->netdev)) + netif_stop_queue(priv->netdev); + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + if (ssid_bssid) + memcpy(&tmp_ssid_bssid, ssid_bssid, + sizeof(struct mwifiex_ssid_bssid)); + status = mwifiex_bss_ioctl_start(priv, wait, &tmp_ssid_bssid); + + status = mwifiex_request_ioctl(priv, wait, status, wait_option); + + kfree(wait); + return status; +} + +/* + * IOCTL request handler to set host sleep configuration. + * + * This function prepares the correct firmware command and + * issues it. + */ +static int +mwifiex_pm_ioctl_hs_cfg(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u16 action, struct mwifiex_ds_hs_cfg *hs_cfg) +{ + struct mwifiex_adapter *adapter = priv->adapter; + int status = 0; + u32 prev_cond = 0; + + switch (action) { + case HostCmd_ACT_GEN_SET: + if (adapter->pps_uapsd_mode) { + dev_dbg(adapter->dev, "info: Host Sleep IOCTL" + " is blocked in UAPSD/PPS mode\n"); + status = -1; + break; + } + if (hs_cfg->is_invoke_hostcmd) { + if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) { + if (!adapter->is_hs_configured) + /* Already cancelled */ + break; + /* Save previous condition */ + prev_cond = le32_to_cpu(adapter->hs_cfg + .conditions); + adapter->hs_cfg.conditions = + cpu_to_le32(hs_cfg->conditions); + } else if (hs_cfg->conditions) { + adapter->hs_cfg.conditions = + cpu_to_le32(hs_cfg->conditions); + adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; + if (hs_cfg->gap) + adapter->hs_cfg.gap = (u8)hs_cfg->gap; + } else if (adapter->hs_cfg.conditions == + cpu_to_le32( + HOST_SLEEP_CFG_CANCEL)) { + /* Return failure if no parameters for HS + enable */ + status = -1; + break; + } + status = mwifiex_prepare_cmd(priv, + HostCmd_CMD_802_11_HS_CFG_ENH, + HostCmd_ACT_GEN_SET, + 0, wait, &adapter->hs_cfg); + if (!status) + status = -EINPROGRESS; + if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) + /* Restore previous condition */ + adapter->hs_cfg.conditions = + cpu_to_le32(prev_cond); + } else { + adapter->hs_cfg.conditions = + cpu_to_le32(hs_cfg->conditions); + adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; + adapter->hs_cfg.gap = (u8)hs_cfg->gap; + } + break; + case HostCmd_ACT_GEN_GET: + hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions); + hs_cfg->gpio = adapter->hs_cfg.gpio; + hs_cfg->gap = adapter->hs_cfg.gap; + break; + default: + status = -1; + break; + } + + return status; +} + +/* + * Sends IOCTL request to set Host Sleep parameters. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action, + u8 wait_option, + struct mwifiex_ds_hs_cfg *hscfg) +{ + int ret = 0; + struct mwifiex_wait_queue *wait = NULL; + + if (!hscfg) + return -ENOMEM; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + ret = mwifiex_pm_ioctl_hs_cfg(priv, wait, action, hscfg); + + ret = mwifiex_request_ioctl(priv, wait, ret, wait_option); + + if (wait && (ret != -EINPROGRESS)) + kfree(wait); + return ret; +} + +/* + * Sends IOCTL request to cancel the existing Host Sleep configuration. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_cancel_hs(struct mwifiex_private *priv, u8 wait_option) +{ + int ret = 0; + struct mwifiex_ds_hs_cfg hscfg; + + /* Cancel Host Sleep */ + hscfg.conditions = HOST_SLEEP_CFG_CANCEL; + hscfg.is_invoke_hostcmd = true; + ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, + wait_option, &hscfg); + + return ret; +} +EXPORT_SYMBOL_GPL(mwifiex_cancel_hs); + +/* + * Sends IOCTL request to cancel the existing Host Sleep configuration. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_enable_hs(struct mwifiex_adapter *adapter) +{ + struct mwifiex_ds_hs_cfg hscfg; + + if (adapter->hs_activated) { + dev_dbg(adapter->dev, "cmd: HS Already actived\n"); + return true; + } + + /* Enable Host Sleep */ + adapter->hs_activate_wait_q_woken = false; + + memset(&hscfg, 0, sizeof(struct mwifiex_hs_config_param)); + hscfg.is_invoke_hostcmd = true; + + if (mwifiex_set_hs_params(mwifiex_get_priv(adapter, + MWIFIEX_BSS_ROLE_STA), + HostCmd_ACT_GEN_SET, + MWIFIEX_IOCTL_WAIT, &hscfg)) { + dev_err(adapter->dev, "IOCTL request HS enable failed\n"); + return false; + } + + wait_event_interruptible(adapter->hs_activate_wait_q, + adapter->hs_activate_wait_q_woken); + + return true; +} +EXPORT_SYMBOL_GPL(mwifiex_enable_hs); + +/* + * IOCTL request handler to get signal information. + * + * This function prepares the correct firmware command and + * issues it to get the signal (RSSI) information. + * + * This only works in the connected mode. + */ +static int mwifiex_get_info_signal(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_get_signal *signal) +{ + int ret = 0; + + if (!wait) { + dev_err(priv->adapter->dev, "WAIT information is not present\n"); + return -1; + } + + /* Signal info can be obtained only if connected */ + if (!priv->media_connected) { + dev_dbg(priv->adapter->dev, + "info: Can not get signal in disconnected state\n"); + return -1; + } + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_RSSI_INFO, + HostCmd_ACT_GEN_GET, 0, wait, signal); + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to get statistics. + * + * This function prepares the correct firmware command and + * issues it to get the statistics (RSSI) information. + */ +static int mwifiex_get_info_stats(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_get_stats *log) +{ + int ret = 0; + + if (!wait) { + dev_err(priv->adapter->dev, "MWIFIEX IOCTL information is not present\n"); + return -1; + } + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_GET_LOG, + HostCmd_ACT_GEN_GET, 0, wait, log); + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to get BSS information. + * + * This function collates the information from different driver structures + * to send to the user. + */ +int mwifiex_get_bss_info(struct mwifiex_private *priv, + struct mwifiex_bss_info *info) +{ + struct mwifiex_adapter *adapter = priv->adapter; + struct mwifiex_bssdescriptor *bss_desc; + s32 tbl_idx = 0; + + if (!info) + return -1; + + /* Get current BSS info */ + bss_desc = &priv->curr_bss_params.bss_descriptor; + + /* BSS mode */ + info->bss_mode = priv->bss_mode; + + /* SSID */ + memcpy(&info->ssid, &bss_desc->ssid, + sizeof(struct mwifiex_802_11_ssid)); + + /* BSSID */ + memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN); + + /* Channel */ + info->bss_chan = bss_desc->channel; + + /* Region code */ + info->region_code = adapter->region_code; + + /* Scan table index if connected */ + info->scan_table_idx = 0; + if (priv->media_connected) { + tbl_idx = + mwifiex_find_ssid_in_list(priv, &bss_desc->ssid, + bss_desc->mac_address, + priv->bss_mode); + if (tbl_idx >= 0) + info->scan_table_idx = tbl_idx; + } + + /* Connection status */ + info->media_connected = priv->media_connected; + + /* Tx power information */ + info->max_power_level = priv->max_tx_power_level; + info->min_power_level = priv->min_tx_power_level; + + /* AdHoc state */ + info->adhoc_state = priv->adhoc_state; + + /* Last beacon NF */ + info->bcn_nf_last = priv->bcn_nf_last; + + /* wep status */ + if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED) + info->wep_status = true; + else + info->wep_status = false; + + info->is_hs_configured = adapter->is_hs_configured; + info->is_deep_sleep = adapter->is_deep_sleep; + + return 0; +} + +/* + * IOCTL request handler to get extended version information. + * + * This function prepares the correct firmware command and + * issues it to get the extended version information. + */ +static int mwifiex_get_info_ver_ext(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ver_ext *ver_ext) +{ + int ret = 0; + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_VERSION_EXT, + HostCmd_ACT_GEN_GET, 0, wait, ver_ext); + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set/get SNMP MIB parameters. + * + * This function prepares the correct firmware command and + * issues it. + * + * Currently the following parameters are supported - + * Set/get RTS Threshold + * Set/get fragmentation threshold + * Set/get retry count + */ +int mwifiex_snmp_mib_ioctl(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u32 cmd_oid, u16 action, u32 *value) +{ + int ret = 0; + + if (!value) + return -1; + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, + action, cmd_oid, wait, value); + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set/get band configurations. + * + * For SET operation, it performs extra checks to make sure the Ad-Hoc + * band and channel are compatible. Otherwise it returns an error. + * + * For GET operation, this function retrieves the following information - + * - Infra bands + * - Ad-hoc band + * - Ad-hoc channel + * - Secondary channel offset + */ +int mwifiex_radio_ioctl_band_cfg(struct mwifiex_private *priv, + u16 action, + struct mwifiex_ds_band_cfg *radio_cfg) +{ + struct mwifiex_adapter *adapter = priv->adapter; + u8 infra_band = 0; + u8 adhoc_band = 0; + u32 adhoc_channel = 0; + + if (action == HostCmd_ACT_GEN_GET) { + /* Infra Bands */ + radio_cfg->config_bands = adapter->config_bands; + /* Adhoc Band */ + radio_cfg->adhoc_start_band = adapter->adhoc_start_band; + /* Adhoc channel */ + radio_cfg->adhoc_channel = priv->adhoc_channel; + /* Secondary channel offset */ + radio_cfg->sec_chan_offset = adapter->chan_offset; + return 0; + } + + /* For action = SET */ + infra_band = (u8) radio_cfg->config_bands; + adhoc_band = (u8) radio_cfg->adhoc_start_band; + adhoc_channel = radio_cfg->adhoc_channel; + + /* SET Infra band */ + if ((infra_band | adapter->fw_bands) & ~adapter->fw_bands) + return -1; + + adapter->config_bands = infra_band; + + /* SET Ad-hoc Band */ + if ((adhoc_band | adapter->fw_bands) & ~adapter->fw_bands) + return -1; + + if (adhoc_band) + adapter->adhoc_start_band = adhoc_band; + adapter->chan_offset = (u8) radio_cfg->sec_chan_offset; + /* + * If no adhoc_channel is supplied verify if the existing adhoc + * channel compiles with new adhoc_band + */ + if (!adhoc_channel) { + if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211 + (priv, adapter->adhoc_start_band, + priv->adhoc_channel)) { + /* Pass back the default channel */ + radio_cfg->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; + if ((adapter->adhoc_start_band & BAND_A) + || (adapter->adhoc_start_band & BAND_AN)) + radio_cfg->adhoc_channel = + DEFAULT_AD_HOC_CHANNEL_A; + } + } else { /* Retrurn error if adhoc_band and + adhoc_channel combination is invalid */ + if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211 + (priv, adapter->adhoc_start_band, (u16) adhoc_channel)) + return -1; + priv->adhoc_channel = (u8) adhoc_channel; + } + if ((adhoc_band & BAND_GN) || (adhoc_band & BAND_AN)) + adapter->adhoc_11n_enabled = true; + else + adapter->adhoc_11n_enabled = false; + + return 0; +} + +/* + * IOCTL request handler to set/get active channel. + * + * This function performs validity checking on channel/frequency + * compatibility and returns failure if not valid. + */ +int mwifiex_bss_ioctl_channel(struct mwifiex_private *priv, u16 action, + struct mwifiex_chan_freq_power *chan) +{ + struct mwifiex_adapter *adapter = priv->adapter; + struct mwifiex_chan_freq_power *cfp = NULL; + + if (!chan) + return -1; + + if (action == HostCmd_ACT_GEN_GET) { + cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211(priv, + priv->curr_bss_params.band, + (u16) priv->curr_bss_params.bss_descriptor. + channel); + chan->channel = cfp->channel; + chan->freq = cfp->freq; + + return 0; + } + if (!chan->channel && !chan->freq) + return -1; + if (adapter->adhoc_start_band & BAND_AN) + adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN; + else if (adapter->adhoc_start_band & BAND_A) + adapter->adhoc_start_band = BAND_G | BAND_B; + if (chan->channel) { + if (chan->channel <= MAX_CHANNEL_BAND_BG) + cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211 + (priv, 0, (u16) chan->channel); + if (!cfp) { + cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211 + (priv, BAND_A, (u16) chan->channel); + if (cfp) { + if (adapter->adhoc_11n_enabled) + adapter->adhoc_start_band = BAND_A + | BAND_AN; + else + adapter->adhoc_start_band = BAND_A; + } + } + } else { + if (chan->freq <= MAX_FREQUENCY_BAND_BG) + cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211( + priv, 0, chan->freq); + if (!cfp) { + cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211 + (priv, BAND_A, chan->freq); + if (cfp) { + if (adapter->adhoc_11n_enabled) + adapter->adhoc_start_band = BAND_A + | BAND_AN; + else + adapter->adhoc_start_band = BAND_A; + } + } + } + if (!cfp || !cfp->channel) { + dev_err(adapter->dev, "invalid channel/freq\n"); + return -1; + } + priv->adhoc_channel = (u8) cfp->channel; + chan->channel = cfp->channel; + chan->freq = cfp->freq; + + return 0; +} + +/* + * IOCTL request handler to set/get Ad-Hoc channel. + * + * This function prepares the correct firmware command and + * issues it to set or get the ad-hoc channel. + */ +static int mwifiex_bss_ioctl_ibss_channel(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u16 action, u16 *channel) +{ + int ret = 0; + + if (action == HostCmd_ACT_GEN_GET) { + if (!priv->media_connected) { + *channel = priv->adhoc_channel; + return ret; + } + } else { + priv->adhoc_channel = (u8) *channel; + } + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_RF_CHANNEL, + action, 0, wait, channel); + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to find a particular BSS. + * + * The BSS can be searched with either a BSSID or a SSID. If none of + * these are provided, just the best BSS (best RSSI) is returned. + */ +int mwifiex_bss_ioctl_find_bss(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ssid_bssid *ssid_bssid) +{ + struct mwifiex_adapter *adapter = priv->adapter; + int ret = 0; + struct mwifiex_bssdescriptor *bss_desc; + u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 }; + u8 mac[ETH_ALEN]; + int i = 0; + + if (memcmp(ssid_bssid->bssid, zero_mac, sizeof(zero_mac))) { + i = mwifiex_find_bssid_in_list(priv, + (u8 *) ssid_bssid->bssid, + priv->bss_mode); + if (i < 0) { + memcpy(mac, ssid_bssid->bssid, sizeof(mac)); + dev_err(adapter->dev, "cannot find bssid %pM\n", mac); + return -1; + } + bss_desc = &adapter->scan_table[i]; + memcpy(&ssid_bssid->ssid, &bss_desc->ssid, + sizeof(struct mwifiex_802_11_ssid)); + } else if (ssid_bssid->ssid.ssid_len) { + i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid, NULL, + priv->bss_mode); + if (i < 0) { + dev_err(adapter->dev, "cannot find ssid %s\n", + ssid_bssid->ssid.ssid); + return -1; + } + bss_desc = &adapter->scan_table[i]; + memcpy(ssid_bssid->bssid, bss_desc->mac_address, ETH_ALEN); + } else { + ret = mwifiex_find_best_network(priv, ssid_bssid); + } + + return ret; +} + +/* + * IOCTL request handler to change Ad-Hoc channel. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + * + * The function follows the following steps to perform the change - + * - Get current IBSS information + * - Get current channel + * - If no change is required, return + * - If not connected, change channel and return + * - If connected, + * - Disconnect + * - Change channel + * - Perform specific SSID scan with same SSID + * - Start/Join the IBSS + */ +int +mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, int channel) +{ + int ret = 0; + int status = 0; + struct mwifiex_bss_info bss_info; + struct mwifiex_wait_queue *wait = NULL; + u8 wait_option = MWIFIEX_IOCTL_WAIT; + struct mwifiex_ssid_bssid ssid_bssid; + u16 curr_chan = 0; + + memset(&bss_info, 0, sizeof(bss_info)); + + /* Get BSS information */ + if (mwifiex_get_bss_info(priv, &bss_info)) + return -1; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + /* Get current channel */ + status = mwifiex_bss_ioctl_ibss_channel(priv, wait, HostCmd_ACT_GEN_GET, + &curr_chan); + + if (mwifiex_request_ioctl(priv, wait, status, wait_option)) { + ret = -1; + goto done; + } + if (curr_chan == channel) { + ret = 0; + goto done; + } + dev_dbg(priv->adapter->dev, "cmd: updating channel from %d to %d\n", + curr_chan, channel); + + if (!bss_info.media_connected) { + ret = 0; + goto done; + } + + /* Do disonnect */ + memset(&ssid_bssid, 0, ETH_ALEN); + status = mwifiex_bss_ioctl_stop(priv, wait, ssid_bssid.bssid); + + if (mwifiex_request_ioctl(priv, wait, status, wait_option)) { + ret = -1; + goto done; + } + + status = mwifiex_bss_ioctl_ibss_channel(priv, wait, HostCmd_ACT_GEN_SET, + (u16 *) &channel); + + if (mwifiex_request_ioctl(priv, wait, status, wait_option)) { + ret = -1; + goto done; + } + + /* Do specific SSID scanning */ + if (mwifiex_request_scan(priv, wait_option, &bss_info.ssid)) { + ret = -1; + goto done; + } + /* Start/Join Adhoc network */ + memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid)); + memcpy(&ssid_bssid.ssid, &bss_info.ssid, + sizeof(struct mwifiex_802_11_ssid)); + + status = mwifiex_bss_ioctl_start(priv, wait, &ssid_bssid); + + if (mwifiex_request_ioctl(priv, wait, status, wait_option)) + ret = -1; + +done: + kfree(wait); + return ret; +} + +/* + * IOCTL request handler to get rate. + * + * This function prepares the correct firmware command and + * issues it to get the current rate if it is connected, + * otherwise, the function returns the lowest supported rate + * for the band. + */ +static int mwifiex_rate_ioctl_get_rate_value(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_rate_cfg *rate_cfg) +{ + struct mwifiex_adapter *adapter = priv->adapter; + int ret = 0; + + rate_cfg->is_rate_auto = priv->is_data_rate_auto; + if (!priv->media_connected) { + switch (adapter->config_bands) { + case BAND_B: + /* Return the lowest supported rate for B band */ + rate_cfg->rate = supported_rates_b[0] & 0x7f; + break; + case BAND_G: + case BAND_G | BAND_GN: + /* Return the lowest supported rate for G band */ + rate_cfg->rate = supported_rates_g[0] & 0x7f; + break; + case BAND_B | BAND_G: + case BAND_A | BAND_B | BAND_G: + case BAND_A | BAND_B: + case BAND_A | BAND_B | BAND_G | BAND_AN | BAND_GN: + case BAND_B | BAND_G | BAND_GN: + /* Return the lowest supported rate for BG band */ + rate_cfg->rate = supported_rates_bg[0] & 0x7f; + break; + case BAND_A: + case BAND_A | BAND_G: + case BAND_A | BAND_G | BAND_AN | BAND_GN: + case BAND_A | BAND_AN: + /* Return the lowest supported rate for A band */ + rate_cfg->rate = supported_rates_a[0] & 0x7f; + break; + case BAND_GN: + /* Return the lowest supported rate for N band */ + rate_cfg->rate = supported_rates_n[0] & 0x7f; + break; + default: + dev_warn(adapter->dev, "invalid band %#x\n", + adapter->config_bands); + break; + } + } else { + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, + HostCmd_CMD_802_11_TX_RATE_QUERY, + HostCmd_ACT_GEN_GET, 0, wait, NULL); + if (!ret) + ret = -EINPROGRESS; + } + + return ret; +} + +/* + * IOCTL request handler to set rate. + * + * This function prepares the correct firmware command and + * issues it to set the current rate. + * + * The function also performs validation checking on the supplied value. + */ +static int mwifiex_rate_ioctl_set_rate_value(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_rate_cfg *rate_cfg) +{ + u8 rates[MWIFIEX_SUPPORTED_RATES]; + u8 *rate = NULL; + int rate_index = 0; + u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; + u32 i = 0; + int ret = 0; + struct mwifiex_adapter *adapter = priv->adapter; + + if (rate_cfg->is_rate_auto) { + memset(bitmap_rates, 0, sizeof(bitmap_rates)); + /* Support all HR/DSSS rates */ + bitmap_rates[0] = 0x000F; + /* Support all OFDM rates */ + bitmap_rates[1] = 0x00FF; + /* Support all HT-MCSs rate */ + for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates) - 3; i++) + bitmap_rates[i + 2] = 0xFFFF; + bitmap_rates[9] = 0x3FFF; + } else { + memset(rates, 0, sizeof(rates)); + mwifiex_get_active_data_rates(priv, rates); + rate = rates; + for (i = 0; (rate[i] && i < MWIFIEX_SUPPORTED_RATES); i++) { + dev_dbg(adapter->dev, "info: rate=%#x wanted=%#x\n", + rate[i], rate_cfg->rate); + if ((rate[i] & 0x7f) == (rate_cfg->rate & 0x7f)) + break; + } + if (!rate[i] || (i == MWIFIEX_SUPPORTED_RATES)) { + dev_err(adapter->dev, "fixed data rate %#x is out " + "of range\n", rate_cfg->rate); + return -1; + } + memset(bitmap_rates, 0, sizeof(bitmap_rates)); + + rate_index = + mwifiex_data_rate_to_index(adapter, rate_cfg->rate); + + /* Only allow b/g rates to be set */ + if (rate_index >= MWIFIEX_RATE_INDEX_HRDSSS0 && + rate_index <= MWIFIEX_RATE_INDEX_HRDSSS3) { + bitmap_rates[0] = 1 << rate_index; + } else { + rate_index -= 1; /* There is a 0x00 in the table */ + if (rate_index >= MWIFIEX_RATE_INDEX_OFDM0 && + rate_index <= MWIFIEX_RATE_INDEX_OFDM7) + bitmap_rates[1] = 1 << (rate_index - + MWIFIEX_RATE_INDEX_OFDM0); + } + } + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_TX_RATE_CFG, + HostCmd_ACT_GEN_SET, 0, wait, bitmap_rates); + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set/get rate. + * + * This function can be used to set/get either the rate value or the + * rate index. + */ +static int mwifiex_rate_ioctl_cfg(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_rate_cfg *rate_cfg) +{ + int status = 0; + + if (!rate_cfg) + return -1; + + if (rate_cfg->action == HostCmd_ACT_GEN_GET) + status = mwifiex_rate_ioctl_get_rate_value( + priv, wait, rate_cfg); + else + status = mwifiex_rate_ioctl_set_rate_value( + priv, wait, rate_cfg); + + return status; +} + +/* + * Sends IOCTL request to get the data rate. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, + struct mwifiex_rate_cfg *rate) +{ + int ret = 0; + struct mwifiex_wait_queue *wait = NULL; + u8 wait_option = MWIFIEX_IOCTL_WAIT; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + memset(rate, 0, sizeof(struct mwifiex_rate_cfg)); + rate->action = HostCmd_ACT_GEN_GET; + ret = mwifiex_rate_ioctl_cfg(priv, wait, rate); + + ret = mwifiex_request_ioctl(priv, wait, ret, wait_option); + if (!ret) { + if (rate && rate->is_rate_auto) + rate->rate = mwifiex_index_to_data_rate(priv->adapter, + priv->tx_rate, priv->tx_htinfo); + else if (rate) + rate->rate = priv->data_rate; + } else { + ret = -1; + } + + kfree(wait); + return ret; +} + +/* + * IOCTL request handler to set tx power configuration. + * + * This function prepares the correct firmware command and + * issues it. + * + * For non-auto power mode, all the following power groups are set - + * - Modulation class HR/DSSS + * - Modulation class OFDM + * - Modulation class HTBW20 + * - Modulation class HTBW40 + */ +static int mwifiex_power_ioctl_set_power(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_power_cfg *power_cfg) +{ + int ret = 0; + struct host_cmd_ds_txpwr_cfg *txp_cfg = NULL; + struct mwifiex_types_power_group *pg_tlv = NULL; + struct mwifiex_power_group *pg = NULL; + u8 *buf = NULL; + u16 dbm = 0; + + if (!power_cfg->is_power_auto) { + dbm = (u16) power_cfg->power_level; + if ((dbm < priv->min_tx_power_level) || + (dbm > priv->max_tx_power_level)) { + dev_err(priv->adapter->dev, "txpower value %d dBm" + " is out of range (%d dBm-%d dBm)\n", + dbm, priv->min_tx_power_level, + priv->max_tx_power_level); + return -1; + } + } + buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL); + if (!buf) { + dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n", + __func__); + return -1; + } + + txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; + txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); + if (!power_cfg->is_power_auto) { + txp_cfg->mode = cpu_to_le32(1); + pg_tlv = (struct mwifiex_types_power_group *) (buf + + sizeof(struct host_cmd_ds_txpwr_cfg)); + pg_tlv->type = TLV_TYPE_POWER_GROUP; + pg_tlv->length = 4 * sizeof(struct mwifiex_power_group); + pg = (struct mwifiex_power_group *) (buf + + sizeof(struct host_cmd_ds_txpwr_cfg) + + sizeof(struct mwifiex_types_power_group)); + /* Power group for modulation class HR/DSSS */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x03; + pg->modulation_class = MOD_CLASS_HR_DSSS; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg++; + /* Power group for modulation class OFDM */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x07; + pg->modulation_class = MOD_CLASS_OFDM; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg++; + /* Power group for modulation class HTBW20 */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x20; + pg->modulation_class = MOD_CLASS_HT; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg->ht_bandwidth = HT_BW_20; + pg++; + /* Power group for modulation class HTBW40 */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x20; + pg->modulation_class = MOD_CLASS_HT; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg->ht_bandwidth = HT_BW_40; + } + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_TXPWR_CFG, + HostCmd_ACT_GEN_SET, 0, wait, buf); + if (!ret) + ret = -EINPROGRESS; + kfree(buf); + + return ret; +} + +/* + * IOCTL request handler to get power save mode. + * + * This function prepares the correct firmware command and + * issues it. + */ +static int mwifiex_pm_ioctl_ps_mode(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + u32 *ps_mode, u16 action) +{ + int ret = 0; + struct mwifiex_adapter *adapter = priv->adapter; + u16 sub_cmd; + + if (action == HostCmd_ACT_GEN_SET) { + if (*ps_mode) + adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; + else + adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; + sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS; + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, + sub_cmd, BITMAP_STA_PS, wait, NULL); + if ((!ret) && (sub_cmd == DIS_AUTO_PS)) + ret = mwifiex_prepare_cmd(priv, + HostCmd_CMD_802_11_PS_MODE_ENH, GET_PS, + 0, NULL, NULL); + } else { + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, + GET_PS, 0, wait, NULL); + } + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set/reset WPA IE. + * + * The supplied WPA IE is treated as a opaque buffer. Only the first field + * is checked to determine WPA version. If buffer length is zero, the existing + * WPA IE is reset. + */ +static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv, + u8 *ie_data_ptr, u16 ie_len) +{ + if (ie_len) { + if (ie_len > sizeof(priv->wpa_ie)) { + dev_err(priv->adapter->dev, + "failed to copy WPA IE, too big\n"); + return -1; + } + memcpy(priv->wpa_ie, ie_data_ptr, ie_len); + priv->wpa_ie_len = (u8) ie_len; + dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n", + priv->wpa_ie_len, priv->wpa_ie[0]); + + if (priv->wpa_ie[0] == WLAN_EID_WPA) { + priv->sec_info.wpa_enabled = true; + } else if (priv->wpa_ie[0] == WLAN_EID_RSN) { + priv->sec_info.wpa2_enabled = true; + } else { + priv->sec_info.wpa_enabled = false; + priv->sec_info.wpa2_enabled = false; + } + } else { + memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie)); + priv->wpa_ie_len = 0; + dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n", + priv->wpa_ie_len, priv->wpa_ie[0]); + priv->sec_info.wpa_enabled = false; + priv->sec_info.wpa2_enabled = false; + } + + return 0; +} + +/* + * IOCTL request handler to set/reset WAPI IE. + * + * The supplied WAPI IE is treated as a opaque buffer. Only the first field + * is checked to internally enable WAPI. If buffer length is zero, the existing + * WAPI IE is reset. + */ +static int mwifiex_set_wapi_ie(struct mwifiex_private *priv, + u8 *ie_data_ptr, u16 ie_len) +{ + if (ie_len) { + if (ie_len > sizeof(priv->wapi_ie)) { + dev_dbg(priv->adapter->dev, + "info: failed to copy WAPI IE, too big\n"); + return -1; + } + memcpy(priv->wapi_ie, ie_data_ptr, ie_len); + priv->wapi_ie_len = ie_len; + dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n", + priv->wapi_ie_len, priv->wapi_ie[0]); + + if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY) + priv->sec_info.wapi_enabled = true; + } else { + memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie)); + priv->wapi_ie_len = ie_len; + dev_dbg(priv->adapter->dev, + "info: Reset wapi_ie_len=%d IE=%#x\n", + priv->wapi_ie_len, priv->wapi_ie[0]); + priv->sec_info.wapi_enabled = false; + } + return 0; +} + +/* + * IOCTL request handler to set WAPI key. + * + * This function prepares the correct firmware command and + * issues it. + */ +static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_adapter *adapter, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + int ret = 0; + struct mwifiex_private *priv = adapter->priv[wait->bss_index]; + + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, + wait, encrypt_key); + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set WEP network key. + * + * This function prepares the correct firmware command and + * issues it, after validation checks. + */ +static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_adapter *adapter, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + int ret = 0; + struct mwifiex_private *priv = adapter->priv[wait->bss_index]; + struct mwifiex_wep_key *wep_key = NULL; + int index; + + if (priv->wep_key_curr_index >= NUM_WEP_KEYS) + priv->wep_key_curr_index = 0; + wep_key = &priv->wep_key[priv->wep_key_curr_index]; + index = encrypt_key->key_index; + if (encrypt_key->key_disable) { + priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED; + } else if (!encrypt_key->key_len) { + /* Copy the required key as the current key */ + wep_key = &priv->wep_key[index]; + if (!wep_key->key_length) { + dev_err(adapter->dev, + "key not set, so cannot enable it\n"); + return -1; + } + priv->wep_key_curr_index = (u16) index; + priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED; + } else { + wep_key = &priv->wep_key[index]; + /* Cleanup */ + memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); + /* Copy the key in the driver */ + memcpy(wep_key->key_material, + encrypt_key->key_material, + encrypt_key->key_len); + wep_key->key_index = index; + wep_key->key_length = encrypt_key->key_len; + priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED; + } + if (wep_key->key_length) { + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, 0, NULL, NULL); + if (ret) + return ret; + } + if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED) + priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; + else + priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_MAC_CONTROL, + HostCmd_ACT_GEN_SET, 0, wait, + &priv->curr_pkt_filter); + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set WPA key. + * + * This function prepares the correct firmware command and + * issues it, after validation checks. + * + * Current driver only supports key length of up to 32 bytes. + * + * This function can also be used to disable a currently set key. + */ +static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_adapter *adapter, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + int ret = 0; + struct mwifiex_private *priv = adapter->priv[wait->bss_index]; + u8 remove_key = false; + struct host_cmd_ds_802_11_key_material *ibss_key; + + /* Current driver only supports key length of up to 32 bytes */ + if (encrypt_key->key_len > MWIFIEX_MAX_KEY_LENGTH) { + dev_err(adapter->dev, "key length too long\n"); + return -1; + } + + if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { + /* + * IBSS/WPA-None uses only one key (Group) for both receiving + * and sending unicast and multicast packets. + */ + /* Send the key as PTK to firmware */ + encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, + NULL, encrypt_key); + if (ret) + return ret; + + ibss_key = &priv->aes_key; + memset(ibss_key, 0, + sizeof(struct host_cmd_ds_802_11_key_material)); + /* Copy the key in the driver */ + memcpy(ibss_key->key_param_set.key, encrypt_key->key_material, + encrypt_key->key_len); + memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len, + sizeof(ibss_key->key_param_set.key_len)); + ibss_key->key_param_set.key_type_id + = cpu_to_le16(KEY_TYPE_ID_TKIP); + ibss_key->key_param_set.key_info + = cpu_to_le16(KEY_INFO_TKIP_ENABLED); + + /* Send the key as GTK to firmware */ + encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST; + } + + if (!encrypt_key->key_index) + encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; + + if (remove_key) + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, + !(KEY_INFO_ENABLED), + wait, encrypt_key); + else + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, + wait, encrypt_key); + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * IOCTL request handler to set/get network keys. + * + * This is a generic key handling function which supports WEP, WPA + * and WAPI. + */ +static int +mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + int status = 0; + struct mwifiex_adapter *adapter = priv->adapter; + + if (encrypt_key->is_wapi_key) + status = mwifiex_sec_ioctl_set_wapi_key(adapter, wait, + encrypt_key); + else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104) + status = mwifiex_sec_ioctl_set_wpa_key(adapter, wait, + encrypt_key); + else + status = mwifiex_sec_ioctl_set_wep_key(adapter, wait, + encrypt_key); + return status; +} + +/* + * This function returns the driver version. + */ +int +mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version, + int max_len) +{ + union { + u32 l; + u8 c[4]; + } ver; + char fw_ver[32]; + + ver.l = adapter->fw_release_number; + sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]); + + snprintf(version, max_len, driver_version, fw_ver); + + dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version); + + return 0; +} + +/* + * Sends IOCTL request to set Tx power. It can be set to either auto + * or a fixed value. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_set_tx_power(struct mwifiex_private *priv, int type, int dbm) +{ + struct mwifiex_power_cfg power_cfg; + struct mwifiex_wait_queue *wait = NULL; + int status = 0; + int ret = 0; + + wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT); + if (!wait) + return -ENOMEM; + + if (type == NL80211_TX_POWER_FIXED) { + power_cfg.is_power_auto = 0; + power_cfg.power_level = dbm; + } else { + power_cfg.is_power_auto = 1; + } + status = mwifiex_power_ioctl_set_power(priv, wait, &power_cfg); + + ret = mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT); + + kfree(wait); + return ret; +} + +/* + * Sends IOCTL request to get scan table. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_get_scan_table(struct mwifiex_private *priv, u8 wait_option, + struct mwifiex_scan_resp *scan_resp) +{ + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_scan_resp scan; + int status = 0; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + status = mwifiex_scan_networks(priv, wait, HostCmd_ACT_GEN_GET, + NULL, &scan); + + status = mwifiex_request_ioctl(priv, wait, status, wait_option); + if (!status) { + if (scan_resp) + memcpy(scan_resp, &scan, + sizeof(struct mwifiex_scan_resp)); + } + + if (wait && (status != -EINPROGRESS)) + kfree(wait); + return status; +} + +/* + * Sends IOCTL request to get signal information. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_get_signal_info(struct mwifiex_private *priv, u8 wait_option, + struct mwifiex_ds_get_signal *signal) +{ + struct mwifiex_ds_get_signal info; + struct mwifiex_wait_queue *wait = NULL; + int status = 0; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + info.selector = ALL_RSSI_INFO_MASK; + + status = mwifiex_get_info_signal(priv, wait, &info); + + status = mwifiex_request_ioctl(priv, wait, status, wait_option); + if (!status) { + if (signal) + memcpy(signal, &info, + sizeof(struct mwifiex_ds_get_signal)); + if (info.selector & BCN_RSSI_AVG_MASK) + priv->w_stats.qual.level = info.bcn_rssi_avg; + if (info.selector & BCN_NF_AVG_MASK) + priv->w_stats.qual.noise = info.bcn_nf_avg; + } + + if (wait && (status != -EINPROGRESS)) + kfree(wait); + return status; +} + +/* + * Sends IOCTL request to set encoding parameters. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key, + int key_len, u8 key_index, int disable) +{ + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_ds_encrypt_key encrypt_key; + int status = 0; + int ret = 0; + + wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT); + if (!wait) + return -ENOMEM; + + memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); + encrypt_key.key_len = key_len; + if (!disable) { + encrypt_key.key_index = key_index; + if (key_len) + memcpy(encrypt_key.key_material, key, key_len); + } else { + encrypt_key.key_disable = true; + } + + status = mwifiex_sec_ioctl_encrypt_key(priv, wait, &encrypt_key); + + if (mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT)) + ret = -EFAULT; + + kfree(wait); + return ret; +} + +/* + * Sends IOCTL request to set power management parameters. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_drv_set_power(struct mwifiex_private *priv, bool power_on) +{ + int ret = 0; + int status = 0; + struct mwifiex_wait_queue *wait = NULL; + u32 ps_mode; + + wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT); + if (!wait) + return -ENOMEM; + + ps_mode = power_on; + status = mwifiex_pm_ioctl_ps_mode(priv, wait, &ps_mode, + HostCmd_ACT_GEN_SET); + + ret = mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT); + + kfree(wait); + return ret; +} + +/* + * Sends IOCTL request to get extended version. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_get_ver_ext(struct mwifiex_private *priv) +{ + struct mwifiex_ver_ext ver_ext; + struct mwifiex_wait_queue *wait = NULL; + int status = 0; + int ret = 0; + u8 wait_option = MWIFIEX_IOCTL_WAIT; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + /* get fw version */ + memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext)); + status = mwifiex_get_info_ver_ext(priv, wait, &ver_ext); + + ret = mwifiex_request_ioctl(priv, wait, status, wait_option); + + if (ret) + ret = -1; + + kfree(wait); + return ret; +} + +/* + * Sends IOCTL request to get statistics information. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_get_stats_info(struct mwifiex_private *priv, + struct mwifiex_ds_get_stats *log) +{ + int ret = 0; + int status = 0; + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_ds_get_stats get_log; + u8 wait_option = MWIFIEX_IOCTL_WAIT; + + /* Allocate wait buffer */ + wait = mwifiex_alloc_fill_wait_queue(priv, wait_option); + if (!wait) + return -ENOMEM; + + memset(&get_log, 0, sizeof(struct mwifiex_ds_get_stats)); + status = mwifiex_get_info_stats(priv, wait, &get_log); + + /* Send IOCTL request to MWIFIEX */ + ret = mwifiex_request_ioctl(priv, wait, status, wait_option); + if (!ret) { + if (log) + memcpy(log, &get_log, sizeof(struct + mwifiex_ds_get_stats)); + priv->w_stats.discard.fragment = get_log.fcs_error; + priv->w_stats.discard.retries = get_log.retry; + priv->w_stats.discard.misc = get_log.ack_failure; + } + + kfree(wait); + return ret; +} + +/* + * IOCTL request handler to read/write register. + * + * This function prepares the correct firmware command and + * issues it. + * + * Access to the following registers are supported - + * - MAC + * - BBP + * - RF + * - PMIC + * - CAU + */ +static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_reg_rw *reg_rw, + u16 action) +{ + int ret = 0; + u16 cmd_no; + + switch (le32_to_cpu(reg_rw->type)) { + case MWIFIEX_REG_MAC: + cmd_no = HostCmd_CMD_MAC_REG_ACCESS; + break; + case MWIFIEX_REG_BBP: + cmd_no = HostCmd_CMD_BBP_REG_ACCESS; + break; + case MWIFIEX_REG_RF: + cmd_no = HostCmd_CMD_RF_REG_ACCESS; + break; + case MWIFIEX_REG_PMIC: + cmd_no = HostCmd_CMD_PMIC_REG_ACCESS; + break; + case MWIFIEX_REG_CAU: + cmd_no = HostCmd_CMD_CAU_REG_ACCESS; + break; + default: + return -1; + } + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, cmd_no, action, 0, wait, reg_rw); + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * Sends IOCTL request to write to a register. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type, + u32 reg_offset, u32 reg_value) +{ + int ret = 0; + int status = 0; + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_ds_reg_rw reg_rw; + + wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT); + if (!wait) + return -ENOMEM; + + reg_rw.type = cpu_to_le32(reg_type); + reg_rw.offset = cpu_to_le32(reg_offset); + reg_rw.value = cpu_to_le32(reg_value); + status = mwifiex_reg_mem_ioctl_reg_rw(priv, wait, ®_rw, + HostCmd_ACT_GEN_SET); + + ret = mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT); + + kfree(wait); + return ret; +} + +/* + * Sends IOCTL request to read from a register. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type, + u32 reg_offset, u32 *value) +{ + int ret = 0; + int status = 0; + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_ds_reg_rw reg_rw; + + wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT); + if (!wait) + return -ENOMEM; + + reg_rw.type = cpu_to_le32(reg_type); + reg_rw.offset = cpu_to_le32(reg_offset); + status = mwifiex_reg_mem_ioctl_reg_rw(priv, wait, ®_rw, + HostCmd_ACT_GEN_GET); + + ret = mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT); + if (ret) + goto done; + + *value = le32_to_cpu(reg_rw.value); + +done: + kfree(wait); + return ret; +} + +/* + * IOCTL request handler to read EEPROM. + * + * This function prepares the correct firmware command and + * issues it. + */ +static int +mwifiex_reg_mem_ioctl_read_eeprom(struct mwifiex_private *priv, + struct mwifiex_wait_queue *wait, + struct mwifiex_ds_read_eeprom *rd_eeprom) +{ + int ret = 0; + + /* Send request to firmware */ + ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS, + HostCmd_ACT_GEN_GET, 0, wait, rd_eeprom); + + if (!ret) + ret = -EINPROGRESS; + + return ret; +} + +/* + * Sends IOCTL request to read from EEPROM. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes, + u8 *value) +{ + int ret = 0; + int status = 0; + struct mwifiex_wait_queue *wait = NULL; + struct mwifiex_ds_read_eeprom rd_eeprom; + + wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT); + if (!wait) + return -ENOMEM; + + rd_eeprom.offset = cpu_to_le16((u16) offset); + rd_eeprom.byte_count = cpu_to_le16((u16) bytes); + status = mwifiex_reg_mem_ioctl_read_eeprom(priv, wait, &rd_eeprom); + + ret = mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT); + if (ret) + goto done; + + memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA); +done: + kfree(wait); + return ret; +} + +/* + * This function sets a generic IE. In addition to generic IE, it can + * also handle WPA, WPA2 and WAPI IEs. + */ +static int +mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, + u16 ie_len) +{ + int ret = 0; + struct ieee_types_vendor_header *pvendor_ie; + const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 }; + const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 }; + + /* If the passed length is zero, reset the buffer */ + if (!ie_len) { + priv->gen_ie_buf_len = 0; + priv->wps.session_enable = false; + + return 0; + } else if (!ie_data_ptr) { + return -1; + } + pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; + /* Test to see if it is a WPA IE, if not, then it is a gen IE */ + if (((pvendor_ie->element_id == WLAN_EID_WPA) + && (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) + || (pvendor_ie->element_id == WLAN_EID_RSN)) { + + /* IE is a WPA/WPA2 IE so call set_wpa function */ + ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len); + priv->wps.session_enable = false; + + return ret; + } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) { + /* IE is a WAPI IE so call set_wapi function */ + ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len); + + return ret; + } + /* + * Verify that the passed length is not larger than the + * available space remaining in the buffer + */ + if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) { + + /* Test to see if it is a WPS IE, if so, enable + * wps session flag + */ + pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; + if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) + && (!memcmp(pvendor_ie->oui, wps_oui, + sizeof(wps_oui)))) { + priv->wps.session_enable = true; + dev_dbg(priv->adapter->dev, + "info: WPS Session Enabled.\n"); + } + + /* Append the passed data to the end of the + genIeBuffer */ + memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr, + ie_len); + /* Increment the stored buffer length by the + size passed */ + priv->gen_ie_buf_len += ie_len; + } else { + /* Passed data does not fit in the remaining + buffer space */ + ret = -1; + } + + /* Return 0, or -1 for error case */ + return ret; +} + +/* + * IOCTL request handler to set/get generic IE. + * + * In addition to various generic IEs, this function can also be + * used to set the ARP filter. + */ +static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv, + struct mwifiex_ds_misc_gen_ie *gen_ie, + u16 action) +{ + struct mwifiex_adapter *adapter = priv->adapter; + + switch (gen_ie->type) { + case MWIFIEX_IE_TYPE_GEN_IE: + if (action == HostCmd_ACT_GEN_GET) { + gen_ie->len = priv->wpa_ie_len; + memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len); + } else { + mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data, + (u16) gen_ie->len); + } + break; + case MWIFIEX_IE_TYPE_ARP_FILTER: + memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter)); + if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) { + adapter->arp_filter_size = 0; + dev_err(adapter->dev, "invalid ARP filter size\n"); + return -1; + } else { + memcpy(adapter->arp_filter, gen_ie->ie_data, + gen_ie->len); + adapter->arp_filter_size = gen_ie->len; + } + break; + default: + dev_err(adapter->dev, "invalid IE type\n"); + return -1; + } + return 0; +} + +/* + * Sends IOCTL request to set a generic IE. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len) +{ + struct mwifiex_ds_misc_gen_ie gen_ie; + int status = 0; + + if (ie_len > IW_CUSTOM_MAX) + return -EFAULT; + + gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE; + gen_ie.len = ie_len; + memcpy(gen_ie.ie_data, ie, ie_len); + status = mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET); + if (status) + return -EFAULT; + + return 0; +} |