diff options
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_91x_hal.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_91x_mac80211.c | 67 | ||||
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_91x_main.c | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_91x_mgmt.c | 133 | ||||
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_main.h | 22 | ||||
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_mgmt.h | 35 |
6 files changed, 261 insertions, 0 deletions
diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c index 182b06629371..1dbaab2a96b7 100644 --- a/drivers/net/wireless/rsi/rsi_91x_hal.c +++ b/drivers/net/wireless/rsi/rsi_91x_hal.c @@ -100,6 +100,9 @@ int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb) mgmt_desc->frame_type = TX_DOT11_MGMT; mgmt_desc->header_len = MIN_802_11_HDR_LEN; mgmt_desc->xtend_desc_size = header_size - FRAME_DESC_SZ; + + if (ieee80211_is_probe_req(wh->frame_control)) + mgmt_desc->frame_info = cpu_to_le16(RSI_INSERT_SEQ_IN_FW); mgmt_desc->frame_info |= cpu_to_le16(RATE_INFO_ENABLE); if (is_broadcast_ether_addr(wh->addr1)) mgmt_desc->frame_info |= cpu_to_le16(RSI_BROADCAST_PKT); diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c index e56fc83faf0e..aded1ae4fad5 100644 --- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c +++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c @@ -229,6 +229,68 @@ static void rsi_register_rates_channels(struct rsi_hw *adapter, int band) /* sbands->ht_cap.mcs.rx_highest = 0x82; */ } +static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_scan_request *hw_req) +{ + struct cfg80211_scan_request *scan_req = &hw_req->req; + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_bss_conf *bss = &vif->bss_conf; + + rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n"); + + if (common->fsm_state != FSM_MAC_INIT_DONE) + return -ENODEV; + + if ((common->wow_flags & RSI_WOW_ENABLED) || + scan_req->n_channels == 0) + return -EINVAL; + + /* Scan already in progress. So return */ + if (common->bgscan_en) + return -EBUSY; + + /* If STA is not connected, return with special value 1, in order + * to start sw_scan in mac80211 + */ + if (!bss->assoc) + return 1; + + mutex_lock(&common->mutex); + common->hwscan = scan_req; + if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) { + if (!rsi_send_bgscan_probe_req(common, vif)) { + rsi_dbg(INFO_ZONE, "Background scan started...\n"); + common->bgscan_en = true; + } + } + mutex_unlock(&common->mutex); + + return 0; +} + +static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct cfg80211_scan_info info; + + rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n"); + mutex_lock(&common->mutex); + + if (common->bgscan_en) { + if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) + common->bgscan_en = false; + info.aborted = false; + ieee80211_scan_completed(adapter->hw, &info); + rsi_dbg(INFO_ZONE, "Back ground scan cancelled\b\n"); + } + common->hwscan = NULL; + mutex_unlock(&common->mutex); +} + /** * rsi_mac80211_detach() - This function is used to de-initialize the * Mac80211 stack. @@ -1917,6 +1979,8 @@ static const struct ieee80211_ops mac80211_ops = { .suspend = rsi_mac80211_suspend, .resume = rsi_mac80211_resume, #endif + .hw_scan = rsi_mac80211_hw_scan_start, + .cancel_hw_scan = rsi_mac80211_cancel_hw_scan, }; /** @@ -1999,6 +2063,9 @@ int rsi_mac80211_attach(struct rsi_common *common) common->max_stations = wiphy->max_ap_assoc_sta; rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations); hw->sta_data_size = sizeof(struct rsi_sta); + + wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS; + wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN; wiphy->flags = WIPHY_FLAG_REPORTS_OBSS; wiphy->flags |= WIPHY_FLAG_AP_UAPSD; wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; diff --git a/drivers/net/wireless/rsi/rsi_91x_main.c b/drivers/net/wireless/rsi/rsi_91x_main.c index 01d99ed985ee..ca3a55ed72e4 100644 --- a/drivers/net/wireless/rsi/rsi_91x_main.c +++ b/drivers/net/wireless/rsi/rsi_91x_main.c @@ -328,6 +328,7 @@ struct rsi_hw *rsi_91x_init(u16 oper_mode) } rsi_default_ps_params(adapter); + init_bgscan_params(common); spin_lock_init(&adapter->ps_lock); timer_setup(&common->roc_timer, rsi_roc_timeout, 0); init_completion(&common->wlan_init_completion); diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c index 1095df7d9573..404241424a62 100644 --- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c +++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c @@ -15,6 +15,7 @@ */ #include <linux/etherdevice.h> +#include <linux/timer.h> #include "rsi_mgmt.h" #include "rsi_common.h" #include "rsi_ps.h" @@ -236,6 +237,18 @@ static void rsi_set_default_parameters(struct rsi_common *common) common->dtim_cnt = RSI_DTIM_COUNT; } +void init_bgscan_params(struct rsi_common *common) +{ + memset((u8 *)&common->bgscan, 0, sizeof(struct rsi_bgscan_params)); + common->bgscan.bgscan_threshold = RSI_DEF_BGSCAN_THRLD; + common->bgscan.roam_threshold = RSI_DEF_ROAM_THRLD; + common->bgscan.bgscan_periodicity = RSI_BGSCAN_PERIODICITY; + common->bgscan.num_bgscan_channels = 0; + common->bgscan.two_probe = 1; + common->bgscan.active_scan_duration = RSI_ACTIVE_SCAN_TIME; + common->bgscan.passive_scan_duration = RSI_PASSIVE_SCAN_TIME; +} + /** * rsi_set_contention_vals() - This function sets the contention values for the * backoff procedure. @@ -1628,6 +1641,107 @@ int rsi_send_wowlan_request(struct rsi_common *common, u16 flags, } #endif +int rsi_send_bgscan_params(struct rsi_common *common, int enable) +{ + struct rsi_bgscan_params *params = &common->bgscan; + struct cfg80211_scan_request *scan_req = common->hwscan; + struct rsi_bgscan_config *bgscan; + struct sk_buff *skb; + u16 frame_len = sizeof(*bgscan); + u8 i; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending bgscan params frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, frame_len); + + bgscan = (struct rsi_bgscan_config *)skb->data; + rsi_set_len_qno(&bgscan->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + bgscan->desc_dword0.frame_type = BG_SCAN_PARAMS; + bgscan->bgscan_threshold = cpu_to_le16(params->bgscan_threshold); + bgscan->roam_threshold = cpu_to_le16(params->roam_threshold); + if (enable) + bgscan->bgscan_periodicity = + cpu_to_le16(params->bgscan_periodicity); + bgscan->active_scan_duration = + cpu_to_le16(params->active_scan_duration); + bgscan->passive_scan_duration = + cpu_to_le16(params->passive_scan_duration); + bgscan->two_probe = params->two_probe; + + bgscan->num_bgscan_channels = scan_req->n_channels; + for (i = 0; i < bgscan->num_bgscan_channels; i++) + bgscan->channels2scan[i] = + cpu_to_le16(scan_req->channels[i]->hw_value); + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/* This function sends the probe request to be used by firmware in + * background scan + */ +int rsi_send_bgscan_probe_req(struct rsi_common *common, + struct ieee80211_vif *vif) +{ + struct cfg80211_scan_request *scan_req = common->hwscan; + struct rsi_bgscan_probe *bgscan; + struct sk_buff *skb; + struct sk_buff *probereq_skb; + u16 frame_len = sizeof(*bgscan); + size_t ssid_len = 0; + u8 *ssid = NULL; + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending bgscan probe req frame\n", __func__); + + if (common->priv->sc_nvifs <= 0) + return -ENODEV; + + if (scan_req->n_ssids) { + ssid = scan_req->ssids[0].ssid; + ssid_len = scan_req->ssids[0].ssid_len; + } + + skb = dev_alloc_skb(frame_len + MAX_BGSCAN_PROBE_REQ_LEN); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, frame_len + MAX_BGSCAN_PROBE_REQ_LEN); + + bgscan = (struct rsi_bgscan_probe *)skb->data; + bgscan->desc_dword0.frame_type = BG_SCAN_PROBE_REQ; + bgscan->flags = cpu_to_le16(HOST_BG_SCAN_TRIG); + if (common->band == NL80211_BAND_5GHZ) { + bgscan->mgmt_rate = cpu_to_le16(RSI_RATE_6); + bgscan->def_chan = cpu_to_le16(40); + } else { + bgscan->mgmt_rate = cpu_to_le16(RSI_RATE_1); + bgscan->def_chan = cpu_to_le16(11); + } + bgscan->channel_scan_time = cpu_to_le16(RSI_CHANNEL_SCAN_TIME); + + probereq_skb = ieee80211_probereq_get(common->priv->hw, vif->addr, ssid, + ssid_len, scan_req->ie_len); + + memcpy(&skb->data[frame_len], probereq_skb->data, probereq_skb->len); + + bgscan->probe_req_length = cpu_to_le16(probereq_skb->len); + + rsi_set_len_qno(&bgscan->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ + probereq_skb->len), + RSI_WIFI_MGMT_Q); + + skb_put(skb, frame_len + probereq_skb->len); + + dev_kfree_skb(probereq_skb); + + return rsi_send_internal_mgmt_frame(common, skb); +} + /** * rsi_handle_ta_confirm_type() - This function handles the confirm frames. * @common: Pointer to the driver private structure. @@ -1771,9 +1885,28 @@ static int rsi_handle_ta_confirm_type(struct rsi_common *common, return 0; } break; + + case SCAN_REQUEST: + rsi_dbg(INFO_ZONE, "Set channel confirm\n"); + break; + case WAKEUP_SLEEP_REQUEST: rsi_dbg(INFO_ZONE, "Wakeup/Sleep confirmation.\n"); return rsi_handle_ps_confirm(adapter, msg); + + case BG_SCAN_PROBE_REQ: + rsi_dbg(INFO_ZONE, "BG scan complete event\n"); + if (common->bgscan_en) { + struct cfg80211_scan_info info; + + if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) + common->bgscan_en = 0; + info.aborted = false; + ieee80211_scan_completed(adapter->hw, &info); + } + rsi_dbg(INFO_ZONE, "Background scan completed\n"); + break; + default: rsi_dbg(INFO_ZONE, "%s: Invalid TA confirm pkt received\n", __func__); diff --git a/drivers/net/wireless/rsi/rsi_main.h b/drivers/net/wireless/rsi/rsi_main.h index a084f224bb03..4dc0c0123469 100644 --- a/drivers/net/wireless/rsi/rsi_main.h +++ b/drivers/net/wireless/rsi/rsi_main.h @@ -164,6 +164,24 @@ struct transmit_q_stats { u32 total_tx_pkt_freed[NUM_EDCA_QUEUES + 2]; }; +#define MAX_BGSCAN_CHANNELS_DUAL_BAND 38 +#define MAX_BGSCAN_PROBE_REQ_LEN 0x64 +#define RSI_DEF_BGSCAN_THRLD 0x0 +#define RSI_DEF_ROAM_THRLD 0xa +#define RSI_BGSCAN_PERIODICITY 0x1e +#define RSI_ACTIVE_SCAN_TIME 0x14 +#define RSI_PASSIVE_SCAN_TIME 0x46 +#define RSI_CHANNEL_SCAN_TIME 20 +struct rsi_bgscan_params { + u16 bgscan_threshold; + u16 roam_threshold; + u16 bgscan_periodicity; + u8 num_bgscan_channels; + u8 two_probe; + u16 active_scan_duration; + u16 passive_scan_duration; +}; + struct vif_priv { bool is_ht; bool sgi; @@ -289,6 +307,10 @@ struct rsi_common { bool eapol4_confirm; void *bt_adapter; + + struct cfg80211_scan_request *hwscan; + struct rsi_bgscan_params bgscan; + u8 bgscan_en; }; struct eepromrw_info { diff --git a/drivers/net/wireless/rsi/rsi_mgmt.h b/drivers/net/wireless/rsi/rsi_mgmt.h index 359fbdf85739..ea83faa15c7e 100644 --- a/drivers/net/wireless/rsi/rsi_mgmt.h +++ b/drivers/net/wireless/rsi/rsi_mgmt.h @@ -228,6 +228,9 @@ #define RSI_MAX_TX_AGGR_FRMS 8 #define RSI_MAX_RX_AGGR_FRMS 8 +#define RSI_MAX_SCAN_SSIDS 16 +#define RSI_MAX_SCAN_IE_LEN 256 + enum opmode { RSI_OPMODE_UNSUPPORTED = -1, RSI_OPMODE_AP = 0, @@ -623,6 +626,34 @@ struct rsi_wowlan_req { u16 host_sleep_status; } __packed; +#define RSI_START_BGSCAN 1 +#define RSI_STOP_BGSCAN 0 +#define HOST_BG_SCAN_TRIG BIT(4) +struct rsi_bgscan_config { + struct rsi_cmd_desc_dword0 desc_dword0; + __le64 reserved; + __le32 reserved1; + __le16 bgscan_threshold; + __le16 roam_threshold; + __le16 bgscan_periodicity; + u8 num_bgscan_channels; + u8 two_probe; + __le16 active_scan_duration; + __le16 passive_scan_duration; + __le16 channels2scan[MAX_BGSCAN_CHANNELS_DUAL_BAND]; +} __packed; + +struct rsi_bgscan_probe { + struct rsi_cmd_desc_dword0 desc_dword0; + __le64 reserved; + __le32 reserved1; + __le16 mgmt_rate; + __le16 flags; + __le16 def_chan; + __le16 channel_scan_time; + __le16 probe_req_length; +} __packed; + static inline u32 rsi_get_queueno(u8 *addr, u16 offset) { return (le16_to_cpu(*(__le16 *)&addr[offset]) & 0x7000) >> 12; @@ -694,4 +725,8 @@ int rsi_send_wowlan_request(struct rsi_common *common, u16 flags, #endif int rsi_send_ps_request(struct rsi_hw *adapter, bool enable, struct ieee80211_vif *vif); +void init_bgscan_params(struct rsi_common *common); +int rsi_send_bgscan_params(struct rsi_common *common, int enable); +int rsi_send_bgscan_probe_req(struct rsi_common *common, + struct ieee80211_vif *vif); #endif |