wl1271: Add support for connection quality monitoring

This patch will add support for connection quality monitoring by configuring
rssi triggers to the firmware, and enabling the firmware rssi trigger
functionality.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 71 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_acx.c b/drivers/net/wireless/wl12xx/wl1271_acx.c
index 621c94691e7..1a6b2ec1db5 100644
--- a/drivers/net/wireless/wl12xx/wl1271_acx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_acx.c
@@ -1165,6 +1165,7 @@ out:
         kfree(acx);
         return ret;
 }
+
 int wl1271_acx_keep_alive_config(struct wl1271 *wl, u8 index, u8 tpl_valid)
 {
         struct wl1271_acx_keep_alive_config *acx = NULL;
@@ -1194,3 +1195,73 @@ out:
         kfree(acx);
         return ret;
 }
+
+int wl1271_acx_rssi_snr_trigger(struct wl1271 *wl, bool enable,
+                                s16 thold, u8 hyst)
+{
+        struct wl1271_acx_rssi_snr_trigger *acx = NULL;
+        int ret = 0;
+
+        wl1271_debug(DEBUG_ACX, "acx rssi snr trigger");
+
+        acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+        if (!acx) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        wl->last_rssi_event = -1;
+
+        acx->pacing = cpu_to_le16(wl->conf.roam_trigger.trigger_pacing);
+        acx->metric = WL1271_ACX_TRIG_METRIC_RSSI_BEACON;
+        acx->type = WL1271_ACX_TRIG_TYPE_EDGE;
+        if (enable)
+                acx->enable = WL1271_ACX_TRIG_ENABLE;
+        else
+                acx->enable = WL1271_ACX_TRIG_DISABLE;
+
+        acx->index = WL1271_ACX_TRIG_IDX_RSSI;
+        acx->dir = WL1271_ACX_TRIG_DIR_BIDIR;
+        acx->threshold = cpu_to_le16(thold);
+        acx->hysteresis = hyst;
+
+        ret = wl1271_cmd_configure(wl, ACX_RSSI_SNR_TRIGGER, acx, sizeof(*acx));
+        if (ret < 0) {
+                wl1271_warning("acx rssi snr trigger setting failed: %d", ret);
+                goto out;
+        }
+
+out:
+        kfree(acx);
+        return ret;
+}
+
+int wl1271_acx_rssi_snr_avg_weights(struct wl1271 *wl)
+{
+        struct wl1271_acx_rssi_snr_avg_weights *acx = NULL;
+        struct conf_roam_trigger_settings *c = &wl->conf.roam_trigger;
+        int ret = 0;
+
+        wl1271_debug(DEBUG_ACX, "acx rssi snr avg weights");
+
+        acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+        if (!acx) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        acx->rssi_beacon = c->avg_weight_rssi_beacon;
+        acx->rssi_data = c->avg_weight_rssi_data;
+        acx->snr_beacon = c->avg_weight_snr_beacon;
+        acx->snr_data = c->avg_weight_snr_data;
+
+        ret = wl1271_cmd_configure(wl, ACX_RSSI_SNR_WEIGHTS, acx, sizeof(*acx));
+        if (ret < 0) {
+                wl1271_warning("acx rssi snr trigger weights failed: %d", ret);
+                goto out;
+        }
+
+out:
+        kfree(acx);
+        return ret;
+}