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path: root/drivers/net/wireless/mwifiex/sta_ioctl.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/sta_ioctl.c')
-rw-r--r--drivers/net/wireless/mwifiex/sta_ioctl.c1593
1 files changed, 1593 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 00000000000..d05907d0503
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -0,0 +1,1593 @@
+/*
+ * 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.
+ */
+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;
+}
+
+/*
+ * Wait queue completion handler.
+ *
+ * This function waits on a cmd wait queue. It also cancels the pending
+ * request after waking up, in case of errors.
+ */
+int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
+{
+ bool cancel_flag = false;
+ int status = adapter->cmd_wait_q.status;
+
+ dev_dbg(adapter->dev, "cmd pending\n");
+ atomic_inc(&adapter->cmd_pending);
+
+ /* Status pending, wake up main process */
+ queue_work(adapter->workqueue, &adapter->main_work);
+
+ /* Wait for completion */
+ wait_event_interruptible(adapter->cmd_wait_q.wait,
+ adapter->cmd_wait_q.condition);
+ if (!adapter->cmd_wait_q.condition)
+ cancel_flag = true;
+
+ if (cancel_flag) {
+ mwifiex_cancel_pending_ioctl(adapter);
+ dev_dbg(adapter->dev, "cmd cancel\n");
+ }
+ adapter->cmd_wait_q.status = 0;
+
+ return status;
+}
+
+/*
+ * 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.
+ */
+int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
+ struct mwifiex_multicast_list *mcast_list)
+{
+ int ret = 0;
+ u16 old_pkt_filter;
+
+ old_pkt_filter = priv->curr_pkt_filter;
+
+ 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_send_cmd_async(priv,
+ HostCmd_CMD_MAC_MULTICAST_ADR,
+ HostCmd_ACT_GEN_SET, 0,
+ mcast_list);
+ } else {
+ /* Send request to firmware */
+ ret = mwifiex_send_cmd_async(priv,
+ HostCmd_CMD_MAC_MULTICAST_ADR,
+ HostCmd_ACT_GEN_SET, 0,
+ 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_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
+ HostCmd_ACT_GEN_SET,
+ 0, &priv->curr_pkt_filter);
+ }
+
+ return ret;
+}
+
+/*
+ * 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.
+ */
+int mwifiex_bss_start(struct mwifiex_private *priv,
+ struct mwifiex_ssid_bssid *ssid_bssid)
+{
+ int ret;
+ 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);
+ 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, &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);
+ 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, &adapter->scan_table[i]);
+ if (ret)
+ return ret;
+ } else {
+ 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, &ssid_bssid->ssid);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+/*
+ * IOCTL request handler to set host sleep configuration.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ */
+int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
+ int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
+
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ int status = 0;
+ u32 prev_cond = 0;
+
+ if (!hs_cfg)
+ return -ENOMEM;
+
+ 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;
+ }
+ if (cmd_type == MWIFIEX_SYNC_CMD)
+ status = mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_802_11_HS_CFG_ENH,
+ HostCmd_ACT_GEN_SET, 0,
+ &adapter->hs_cfg);
+ else
+ status = mwifiex_send_cmd_async(priv,
+ HostCmd_CMD_802_11_HS_CFG_ENH,
+ HostCmd_ACT_GEN_SET, 0,
+ &adapter->hs_cfg);
+ 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 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, int cmd_type)
+{
+ struct mwifiex_ds_hs_cfg hscfg;
+
+ hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
+ hscfg.is_invoke_hostcmd = true;
+
+ return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
+ cmd_type, &hscfg);
+}
+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;
+ }
+
+ 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_SYNC_CMD,
+ &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 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;
+
+ if (!info)
+ return -1;
+
+ bss_desc = &priv->curr_bss_params.bss_descriptor;
+
+ info->bss_mode = priv->bss_mode;
+
+ memcpy(&info->ssid, &bss_desc->ssid,
+ sizeof(struct mwifiex_802_11_ssid));
+
+ memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
+
+ info->bss_chan = bss_desc->channel;
+
+ 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;
+ }
+
+ info->media_connected = priv->media_connected;
+
+ info->max_power_level = priv->max_tx_power_level;
+ info->min_power_level = priv->min_tx_power_level;
+
+ info->adhoc_state = priv->adhoc_state;
+
+ info->bcn_nf_last = priv->bcn_nf_last;
+
+ 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;
+}
+
+/*
+ * The function sets band configurations.
+ *
+ * it performs extra checks to make sure the Ad-Hoc
+ * band and channel are compatible. Otherwise it returns an error.
+ *
+ */
+int mwifiex_set_radio_band_cfg(struct mwifiex_private *priv,
+ struct mwifiex_ds_band_cfg *radio_cfg)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ u8 infra_band, adhoc_band;
+ u32 adhoc_channel;
+
+ 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_set_channel(struct mwifiex_private *priv,
+ struct mwifiex_chan_freq_power *chan)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct mwifiex_chan_freq_power *cfp = NULL;
+
+ if (!chan)
+ return -1;
+
+ 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,
+ u16 action, u16 *channel)
+{
+ if (action == HostCmd_ACT_GEN_GET) {
+ if (!priv->media_connected) {
+ *channel = priv->adhoc_channel;
+ return 0;
+ }
+ } else {
+ priv->adhoc_channel = (u8) *channel;
+ }
+
+ return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_RF_CHANNEL,
+ action, 0, channel);
+}
+
+/*
+ * 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_ssid_bssid *ssid_bssid)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ 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 {
+ return mwifiex_find_best_network(priv, ssid_bssid);
+ }
+
+ return 0;
+}
+
+/*
+ * 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;
+ struct mwifiex_bss_info bss_info;
+ 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;
+
+ /* Get current channel */
+ ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_GET,
+ &curr_chan);
+
+ 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);
+ ret = mwifiex_deauthenticate(priv, ssid_bssid.bssid);
+
+ ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_SET,
+ (u16 *) &channel);
+
+ /* Do specific SSID scanning */
+ if (mwifiex_request_scan(priv, &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));
+
+ ret = mwifiex_bss_start(priv, &ssid_bssid);
+done:
+ 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_rate_cfg *rate_cfg)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+
+ 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 {
+ return mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_802_11_TX_RATE_QUERY,
+ HostCmd_ACT_GEN_GET, 0, NULL);
+ }
+
+ return 0;
+}
+
+/*
+ * 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_rate_cfg *rate_cfg)
+{
+ u8 rates[MWIFIEX_SUPPORTED_RATES];
+ u8 *rate;
+ int rate_index, ret;
+ u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
+ u32 i;
+ 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(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);
+ }
+ }
+
+ ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
+ HostCmd_ACT_GEN_SET, 0, bitmap_rates);
+
+ 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_rate_cfg *rate_cfg)
+{
+ int status;
+
+ if (!rate_cfg)
+ return -1;
+
+ if (rate_cfg->action == HostCmd_ACT_GEN_GET)
+ status = mwifiex_rate_ioctl_get_rate_value(priv, rate_cfg);
+ else
+ status = mwifiex_rate_ioctl_set_rate_value(priv, 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;
+
+ memset(rate, 0, sizeof(struct mwifiex_rate_cfg));
+ rate->action = HostCmd_ACT_GEN_GET;
+ ret = mwifiex_rate_ioctl_cfg(priv, rate);
+
+ if (!ret) {
+ if (rate && rate->is_rate_auto)
+ rate->rate = mwifiex_index_to_data_rate(priv->tx_rate,
+ priv->tx_htinfo);
+ else if (rate)
+ rate->rate = priv->data_rate;
+ } else {
+ ret = -1;
+ }
+
+ 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
+ */
+int mwifiex_set_tx_power(struct mwifiex_private *priv,
+ struct mwifiex_power_cfg *power_cfg)
+{
+ int ret;
+ struct host_cmd_ds_txpwr_cfg *txp_cfg;
+ struct mwifiex_types_power_group *pg_tlv;
+ struct mwifiex_power_group *pg;
+ u8 *buf;
+ 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 -ENOMEM;
+ }
+
+ 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;
+ }
+ ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
+ HostCmd_ACT_GEN_SET, 0, buf);
+
+ kfree(buf);
+ return ret;
+}
+
+/*
+ * IOCTL request handler to get power save mode.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ */
+int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
+{
+ int ret;
+ struct mwifiex_adapter *adapter = priv->adapter;
+ u16 sub_cmd;
+
+ 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_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
+ sub_cmd, BITMAP_STA_PS, NULL);
+ if ((!ret) && (sub_cmd == DIS_AUTO_PS))
+ ret = mwifiex_send_cmd_async(priv,
+ HostCmd_CMD_802_11_PS_MODE_ENH, GET_PS,
+ 0, NULL);
+
+ 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_private *priv,
+ struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+
+ return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
+ HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
+ encrypt_key);
+}
+
+/*
+ * 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_private *priv,
+ struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+ int ret;
+ struct mwifiex_wep_key *wep_key;
+ 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(priv->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];
+ 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_send_cmd_async(priv,
+ HostCmd_CMD_802_11_KEY_MATERIAL,
+ HostCmd_ACT_GEN_SET, 0, 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;
+
+ ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
+ HostCmd_ACT_GEN_SET, 0,
+ &priv->curr_pkt_filter);
+
+ 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_private *priv,
+ struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+ int ret;
+ 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 > WLAN_MAX_KEY_LEN) {
+ dev_err(priv->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_send_cmd_async(priv,
+ HostCmd_CMD_802_11_KEY_MATERIAL,
+ HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
+ 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_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)
+ ret = mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_802_11_KEY_MATERIAL,
+ HostCmd_ACT_GEN_SET, !(KEY_INFO_ENABLED),
+ encrypt_key);
+ else
+ ret = mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_802_11_KEY_MATERIAL,
+ HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
+ encrypt_key);
+
+ 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_ds_encrypt_key *encrypt_key)
+{
+ int status;
+
+ if (encrypt_key->is_wapi_key)
+ status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
+ else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
+ status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
+ else
+ status = mwifiex_sec_ioctl_set_wep_key(priv, 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 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,
+ struct mwifiex_ds_get_signal *signal)
+{
+ int status;
+
+ signal->selector = ALL_RSSI_INFO_MASK;
+
+ /* 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;
+ }
+
+ status = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
+ HostCmd_ACT_GEN_GET, 0, signal);
+
+ if (!status) {
+ if (signal->selector & BCN_RSSI_AVG_MASK)
+ priv->w_stats.qual.level = signal->bcn_rssi_avg;
+ if (signal->selector & BCN_NF_AVG_MASK)
+ priv->w_stats.qual.noise = signal->bcn_nf_avg;
+ }
+
+ 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_ds_encrypt_key encrypt_key;
+
+ 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;
+ }
+
+ return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
+}
+
+/*
+ * 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;
+
+ memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
+ if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
+ HostCmd_ACT_GEN_GET, 0, &ver_ext))
+ return -1;
+
+ return 0;
+}
+
+/*
+ * 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;
+
+ ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
+ HostCmd_ACT_GEN_GET, 0, log);
+
+ if (!ret) {
+ priv->w_stats.discard.fragment = log->fcs_error;
+ priv->w_stats.discard.retries = log->retry;
+ priv->w_stats.discard.misc = log->ack_failure;
+ }
+
+ 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_ds_reg_rw *reg_rw,
+ u16 action)
+{
+ 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;
+ }
+
+ return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
+
+}
+
+/*
+ * 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)
+{
+ struct mwifiex_ds_reg_rw reg_rw;
+
+ reg_rw.type = cpu_to_le32(reg_type);
+ reg_rw.offset = cpu_to_le32(reg_offset);
+ reg_rw.value = cpu_to_le32(reg_value);
+
+ return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
+}
+
+/*
+ * 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;
+ struct mwifiex_ds_reg_rw reg_rw;
+
+ reg_rw.type = cpu_to_le32(reg_type);
+ reg_rw.offset = cpu_to_le32(reg_offset);
+ ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
+
+ if (ret)
+ goto done;
+
+ *value = le32_to_cpu(reg_rw.value);
+
+done:
+ 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;
+ struct mwifiex_ds_read_eeprom rd_eeprom;
+
+ rd_eeprom.offset = cpu_to_le16((u16) offset);
+ rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
+
+ /* Send request to firmware */
+ ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
+ HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
+
+ if (!ret)
+ memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
+ 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;
+
+ 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);
+ if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
+ return -EFAULT;
+
+ return 0;
+}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-12 22:51:25 +0000