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path: root/drivers/net/wireless/rsi/rsi_91x_mgmt.c
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Diffstat (limited to 'drivers/net/wireless/rsi/rsi_91x_mgmt.c')
-rw-r--r--drivers/net/wireless/rsi/rsi_91x_mgmt.c133
1 files changed, 133 insertions, 0 deletions
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__);