@@ -0,0 +1,744 @@
+/**
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#ifdef CONFIG_RSI_DEBUGFS
+#include "rsi_debugfs.h"
+#endif
+#include "rsi_mgmt.h"
+#include "rsi_common.h"
+
+static const struct ieee80211_channel rsi_2ghz_channels[] = {
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2412,
+ .hw_value = 1 }, /* Channel 1 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2417,
+ .hw_value = 2 }, /* Channel 2 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2422,
+ .hw_value = 3 }, /* Channel 3 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2427,
+ .hw_value = 4 }, /* Channel 4 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2432,
+ .hw_value = 5 }, /* Channel 5 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2437,
+ .hw_value = 6 }, /* Channel 6 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2442,
+ .hw_value = 7 }, /* Channel 7 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2447,
+ .hw_value = 8 }, /* Channel 8 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2452,
+ .hw_value = 9 }, /* Channel 9 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2457,
+ .hw_value = 10 }, /* Channel 10 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2462,
+ .hw_value = 11 }, /* Channel 11 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2467,
+ .hw_value = 12 }, /* Channel 12 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2472,
+ .hw_value = 13 }, /* Channel 13 */
+ { .band = IEEE80211_BAND_2GHZ, .center_freq = 2484,
+ .hw_value = 14 }, /* Channel 14 */
+};
+
+static const struct ieee80211_channel rsi_5ghz_channels[] = {
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5180,
+ .hw_value = 36, }, /* Channel 36 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5200,
+ .hw_value = 40, }, /* Channel 40 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5220,
+ .hw_value = 44, }, /* Channel 44 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5240,
+ .hw_value = 48, }, /* Channel 48 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5260,
+ .hw_value = 52, }, /* Channel 52 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5280,
+ .hw_value = 56, }, /* Channel 56 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5300,
+ .hw_value = 60, }, /* Channel 60 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5320,
+ .hw_value = 64, }, /* Channel 64 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5500,
+ .hw_value = 100, }, /* Channel 100 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5520,
+ .hw_value = 104, }, /* Channel 104 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5540,
+ .hw_value = 108, }, /* Channel 108 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5560,
+ .hw_value = 112, }, /* Channel 112 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5580,
+ .hw_value = 116, }, /* Channel 116 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5600,
+ .hw_value = 120, }, /* Channel 120 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5620,
+ .hw_value = 124, }, /* Channel 124 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5640,
+ .hw_value = 128, }, /* Channel 128 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5660,
+ .hw_value = 132, }, /* Channel 132 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5680,
+ .hw_value = 136, }, /* Channel 136 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5700,
+ .hw_value = 140, }, /* Channel 140 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5745,
+ .hw_value = 149, }, /* Channel 149 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5765,
+ .hw_value = 153, }, /* Channel 153 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5785,
+ .hw_value = 157, }, /* Channel 157 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5805,
+ .hw_value = 161, }, /* Channel 161 */
+ { .band = IEEE80211_BAND_5GHZ, .center_freq = 5825,
+ .hw_value = 165, }, /* Channel 165 */
+};
+
+struct ieee80211_rate rsi_rates[12] = {
+ { .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 },
+ { .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 },
+ { .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 },
+ { .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 },
+ { .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 },
+ { .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 },
+ { .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 },
+ { .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 },
+ { .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 },
+ { .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 },
+ { .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 },
+ { .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 },
+};
+
+const u16 rsi_mcsrates[8] = {
+ RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3,
+ RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7
+};
+
+/**
+ * This function determines if the ptk cipher is WEP or not.
+ *
+ * @param common Pointer to the driver private structure.
+ * @return If cipher type is WEP, a value of 1 is returned, else 0.
+ */
+
+bool rsi_is_cipher_wep(struct rsi_common *common)
+{
+ if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) ||
+ (common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) &&
+ (!common->secinfo.ptk_cipher))
+ return true;
+ else
+ return false;
+}
+
+/**
+ * This function registers the channels and rates.
+ *
+ * @param adapter Pointer to the adapter structure.
+ * @param band Operating band to be set.
+ * @return None.
+ */
+static void rsi_register_rates_channels(struct rsi_hw *adapter, int band)
+{
+ struct ieee80211_supported_band *sbands = &adapter->sbands[band];
+ void *channels = NULL;
+
+ if (band == IEEE80211_BAND_2GHZ) {
+ channels = kmalloc(sizeof(rsi_2ghz_channels), GFP_KERNEL);
+ memcpy(channels,
+ rsi_2ghz_channels,
+ sizeof(rsi_2ghz_channels));
+ sbands->band = IEEE80211_BAND_2GHZ;
+ sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels);
+ sbands->bitrates = rsi_rates;
+ sbands->n_bitrates = ARRAY_SIZE(rsi_rates);
+ } else {
+ channels = kmalloc(sizeof(rsi_5ghz_channels), GFP_KERNEL);
+ memcpy(channels,
+ rsi_5ghz_channels,
+ sizeof(rsi_5ghz_channels));
+ sbands->band = IEEE80211_BAND_5GHZ;
+ sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels);
+ sbands->bitrates = &rsi_rates[4];
+ sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4;
+ }
+
+ sbands->channels = channels;
+
+ memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap));
+ sbands->ht_cap.ht_supported = true;
+ sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+ IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40);
+ sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K;
+ sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
+ sbands->ht_cap.mcs.rx_mask[0] = 0xff;
+ sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
+ /* sbands->ht_cap.mcs.rx_highest = 0x82; */
+}
+
+/**
+ * This function is used to de-initialize Mac80211 stack.
+ *
+ * @param adapter Pointer to the adapter structure.
+ * @return None.
+ */
+void rsi_mac80211_detach(struct rsi_hw *adapter)
+{
+ struct ieee80211_hw *hw = adapter->hw;
+
+ if (hw) {
+ ieee80211_stop_queues(hw);
+ ieee80211_unregister_hw(hw);
+ ieee80211_free_hw(hw);
+ }
+
+#ifdef CONFIG_RSI_DEBUGFS
+ rsi_remove_dbgfs(adapter);
+#endif
+ return;
+}
+EXPORT_SYMBOL_GPL(rsi_mac80211_detach);
+
+/**
+ * This function indicates the transmit status.
+ *
+ * @param adapter Pointer to the adapter structure.
+ * @param skb Pointer to the socket buffer structure.
+ * @param status Status
+ * @return None.
+ */
+void rsi_indicate_tx_status(struct rsi_hw *adapter,
+ struct sk_buff *skb,
+ int status)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+ memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
+
+ if (!status)
+ info->flags |= IEEE80211_TX_STAT_ACK;
+
+ ieee80211_tx_status_irqsafe(adapter->hw, skb);
+}
+
+/**
+ * This is the handler that 802.11 module calls for each transmitted frame.
+ * skb contains the buffer starting from the IEEE 802.11 header.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param control Pointer to the ieee80211_tx_control structure
+ * @param skb Pointer to the socket buffer structure.
+ * @return None
+ */
+static void rsi_mac80211_tx(struct ieee80211_hw *hw,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ rsi_core_xmit(common, skb);
+
+ return;
+}
+
+/**
+ * This is first handler that 802.11 module calls, since the driver init
+ * is complete by then, just returns success.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @return 0 as success.
+ */
+static int rsi_mac80211_start(struct ieee80211_hw *hw)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ mutex_lock(&common->mutex);
+ common->iface_down = false;
+ mutex_unlock(&common->mutex);
+
+ return 0;
+}
+
+/**
+ * This is the last handler that 802.11 module calls.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @return None.
+ */
+static void rsi_mac80211_stop(struct ieee80211_hw *hw)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ mutex_lock(&common->mutex);
+ common->iface_down = true;
+ mutex_unlock(&common->mutex);
+
+ return;
+}
+
+/**
+ * This function is called when a netdevice attached to the hardware is enabled.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @return ret: 0 on success, negative error code on failure.
+ */
+static int rsi_mac80211_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+ int ret = -EOPNOTSUPP;
+
+ mutex_lock(&common->mutex);
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ if (!adapter->sc_nvifs) {
+ ++adapter->sc_nvifs;
+ adapter->vifs[0] = vif;
+ ret = rsi_set_vap_capabilities(common, STA_OPMODE);
+ }
+ break;
+ default:
+ rsi_dbg(ERR_ZONE,
+ "%s: Interface type %d not supported\n", __func__,
+ vif->type);
+ }
+ mutex_unlock(&common->mutex);
+
+ return ret;
+}
+
+/**
+ * This function notifies driver that an interface is going down.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @return None.
+ */
+static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ mutex_lock(&common->mutex);
+ if (vif->type == NL80211_IFTYPE_STATION)
+ adapter->sc_nvifs--;
+
+ if (!memcmp(adapter->vifs[0], vif, sizeof(struct ieee80211_vif)))
+ adapter->vifs[0] = NULL;
+ mutex_unlock(&common->mutex);
+
+ return;
+}
+
+/**
+ * This function is a handler for configuration requests. The stack calls
+ * this function to change hardware configuration, e.g., channel.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param changed Changed flags set.
+ * @return 0 on success, negative error code on failure.
+ */
+static int rsi_mac80211_config(struct ieee80211_hw *hw,
+ u32 changed)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+ int status = -EOPNOTSUPP;
+
+ mutex_lock(&common->mutex);
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+ u16 channel = curchan->hw_value;
+
+ rsi_dbg(INFO_ZONE,
+ "%s: Set channel: %d MHz type: %d channel_no %d\n",
+ __func__, curchan->center_freq,
+ curchan->flags, channel);
+ common->band = curchan->band;
+ status = rsi_set_channel(adapter->priv, channel);
+ }
+ mutex_unlock(&common->mutex);
+
+ return status;
+}
+
+/**
+ * This function is used to get the current connected channel number.
+ *
+ * @param adapter Pointer to the struct rsi_hw
+ * @return Current connected AP's channel number is returned.
+ */
+u16 rsi_get_connected_channel(struct rsi_hw *adapter)
+{
+ struct ieee80211_vif *vif = adapter->vifs[0];
+ if (vif) {
+ struct ieee80211_bss_conf *bss = &vif->bss_conf;
+ struct ieee80211_channel *channel = bss->chandef.chan;
+ return channel->hw_value;
+ }
+
+ return 0;
+}
+
+/**
+ * This function is a handler for configuration requests related to BSS
+ * parameters that may vary during BSS's lifespan.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @param bss_conf Pointer to the ieee80211_bss_conf structure.
+ * @param changed Changed flags set.
+ * @return None.
+ */
+static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changed)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ mutex_lock(&common->mutex);
+ if (changed & BSS_CHANGED_ASSOC) {
+ rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n",
+ __func__, bss_conf->assoc);
+ rsi_inform_bss_status(common,
+ bss_conf->assoc,
+ bss_conf->bssid,
+ bss_conf->qos,
+ bss_conf->aid);
+ }
+ mutex_unlock(&common->mutex);
+
+ return;
+}
+
+/**
+ * This function configures the device's RX filter.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param changed Changed flags set.
+ * @param total_flags Total initial flags set.
+ * @param multicast Multicast.
+ * @return None.
+ */
+static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw,
+ u32 changed_flags,
+ u32 *total_flags,
+ u64 multicast)
+{
+ *total_flags &= FIF_FCSFAIL;
+ changed_flags &= FIF_FCSFAIL;
+
+ return;
+}
+
+/**
+ * This function configures TX queue parameters (EDCF (aifs, cw_min, cw_max),
+ * bursting) for a hardware TX queue.
+ *
+ * @param hw Pointer to the ieee80211_hw structure
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @param queue Queue number.
+ * @param params Pointer to ieee80211_tx_queue_params structure.
+ * @return 0 on success, negative error code on failure.
+ */
+static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+ u8 idx = 0;
+
+ if (queue >= IEEE80211_NUM_ACS)
+ return 0;
+
+ rsi_dbg(INFO_ZONE,
+ "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n",
+ __func__, queue, params->aifs,
+ params->cw_min, params->cw_max, params->txop);
+
+ mutex_lock(&common->mutex);
+ /* Map into the way the f/w expects */
+ switch (queue) {
+ case IEEE80211_AC_VO:
+ idx = VO_Q;
+ break;
+ case IEEE80211_AC_VI:
+ idx = VI_Q;
+ break;
+ case IEEE80211_AC_BE:
+ idx = BE_Q;
+ break;
+ case IEEE80211_AC_BK:
+ idx = BK_Q;
+ break;
+ default:
+ idx = BE_Q;
+ break;
+ }
+
+ memcpy(&common->edca_params[idx],
+ params,
+ sizeof(struct ieee80211_tx_queue_params));
+ mutex_unlock(&common->mutex);
+
+ return 0;
+}
+
+/**
+ * This function loads the keys into the firmware.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @param key Pointer to the ieee80211_key_conf structure.
+ * @return status: 0 on success, -1 on failure.
+ */
+static int rsi_hal_key_config(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_key_conf *key)
+{
+ struct rsi_hw *adapter = hw->priv;
+ int status;
+ u8 key_type;
+
+ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+ key_type = RSI_PAIRWISE_KEY;
+ else
+ key_type = RSI_GROUP_KEY;
+
+ rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n",
+ __func__, key->cipher, key_type, key->keylen);
+
+ if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) ||
+ (key->cipher == WLAN_CIPHER_SUITE_WEP40)) {
+ status = rsi_hal_load_key(adapter->priv,
+ key->key,
+ key->keylen,
+ RSI_PAIRWISE_KEY,
+ key->keyidx,
+ key->cipher);
+ }
+ return rsi_hal_load_key(adapter->priv,
+ key->key,
+ key->keylen,
+ key_type,
+ key->keyidx,
+ key->cipher);
+}
+
+/**
+ * This function sets type of key to be loaded.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param cmd enum set_key_cmd.
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @param sta Pointer to the ieee80211_sta structure.
+ * @param key Pointer to the ieee80211_key_conf structure.
+ * @return status: 0 on success, negative error code on failure.
+ */
+static int rsi_mac80211_set_key(struct ieee80211_hw *hw,
+ enum set_key_cmd cmd,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+ struct security_info *secinfo = &common->secinfo;
+ int status = 0;
+
+ mutex_lock(&common->mutex);
+ switch (cmd) {
+ case SET_KEY:
+ secinfo->security_enable = true;
+ status = rsi_hal_key_config(hw, vif, key);
+ if (status) {
+ mutex_unlock(&common->mutex);
+ return -EINVAL;
+ }
+
+ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+ secinfo->ptk_cipher = key->cipher;
+ else
+ secinfo->gtk_cipher = key->cipher;
+
+ key->hw_key_idx = key->keyidx;
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+
+ rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__);
+ break;
+
+ case DISABLE_KEY:
+ secinfo->security_enable = false;
+ rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__);
+ memset(key, 0, sizeof(struct ieee80211_key_conf));
+ status = rsi_hal_key_config(hw, vif, key);
+ break;
+
+ default:
+ status = -EINVAL;
+ break;
+ }
+
+ mutex_unlock(&common->mutex);
+ return status;
+}
+
+/**
+ * This function selects the AMPDU action for the corresponding
+ * mlme_action flag and informs the f/w regarding this.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @param action ieee80211_ampdu_mlme_action enum.
+ * @param sta Pointer to the ieee80211_sta structure.
+ * @param tid Traffic identifier.
+ * @param ssn Pointer to ssn value.
+ * @param buf_size Buffer size (for kernel version > 2.6.38).
+ * @return status: 0 on success, negative error code on failure.
+ */
+static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta,
+ unsigned short tid,
+ unsigned short *ssn,
+ unsigned char buf_size)
+{
+ int status = 0;
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+ u16 seq_no = 0;
+ u8 ii = 0;
+
+ for (ii = 0; ii < RSI_MAX_VIFS; ii++) {
+ if (vif == adapter->vifs[ii])
+ break;
+ }
+
+ mutex_lock(&common->mutex);
+ rsi_dbg(INFO_ZONE, "%s: AMPDU action %d called\n", __func__, action);
+ if (ssn != NULL)
+ seq_no = *ssn;
+
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ status = rsi_send_aggregation_params_frame(common,
+ tid,
+ seq_no,
+ buf_size,
+ STA_RX_ADDBA_DONE);
+ break;
+
+ case IEEE80211_AMPDU_RX_STOP:
+ status = rsi_send_aggregation_params_frame(common,
+ tid,
+ 0,
+ buf_size,
+ STA_RX_DELBA);
+ break;
+
+ case IEEE80211_AMPDU_TX_START:
+ common->vif_info[ii].seq_start = seq_no;
+ ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+
+ case IEEE80211_AMPDU_TX_STOP_CONT:
+ case IEEE80211_AMPDU_TX_STOP_FLUSH:
+ case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+ status = rsi_send_aggregation_params_frame(common,
+ tid,
+ seq_no,
+ buf_size,
+ STA_TX_DELBA);
+ if (!status)
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ status = rsi_send_aggregation_params_frame(common,
+ tid,
+ common->vif_info[ii]
+ .seq_start,
+ buf_size,
+ STA_TX_ADDBA_DONE);
+ break;
+
+ default:
+ rsi_dbg(ERR_ZONE, "%s: Uknown AMPDU action\n", __func__);
+ break;
+ }
+
+ mutex_unlock(&common->mutex);
+ return status;
+}
+
+/**
+ * This function sets the rts threshold value.
+ *
+ * @param hw Pointer to the ieee80211_hw structure.
+ * @param value Rts threshold value.
+ * @return 0 on success.
+ */
+static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw,
+ u32 value)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ mutex_lock(&common->mutex);
+ common->rts_threshold = value;
+ mutex_unlock(&common->mutex);
+
+ return 0;
+}
+
+/**
+ * This function sets the bitrate_mask to be used.
+ *
+ * @param hw Pointer to the ieee80211_hw structure
+ * @param vif Pointer to the ieee80211_vif structure.
+ * @param mask Pointer to the cfg80211_bitrate_mask structure.
+ * @return 0 on success.
+ */
+static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ struct rsi_hw *adapter = hw->priv;
+ struct rsi_common *common = adapter->priv;
+
+ mutex_lock(&common->mutex);
+
+ common->fixedrate_mask[IEEE80211_BAND_2GHZ] = 0;
+
+ if (mask->control[IEEE80211_BAND_2GHZ].legacy == 0xfff) {
+ common->fixedrate_mask[IEEE80211_BAND_2GHZ] =
+ (mask->control[IEEE80211_BAND_2GHZ].ht_mcs[0] << 12);
+ } else {
+ common->fixedrate_mask[IEEE80211_BAND_2GHZ] =
+ mask->control[IEEE80211_BAND_2GHZ].legacy;
+ }
+ mutex_unlock(&common->mutex);
+
+ return 0;
+}
+