wl12xx: add forced_ps mode

For certain WiFi certification tests forcing PS
is necessary. Since DPS is now enabled in the FW
and this can't be achieved by using netlatency
this required a new config option.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/wl12xx/conf.h b/drivers/net/wireless/wl12xx/conf.h
index 80eafad..823535c 100644 (file)
--- a/drivers/net/wireless/wl12xx/conf.h
+++ b/drivers/net/wireless/wl12xx/conf.h
@@ -942,6 +942,12 @@ struct conf_conn_settings {
         */
        u16 dynamic_ps_timeout;
 
+       /*
+        * Specifies whether dynamic PS should be disabled and PSM forced.
+        * This is required for certain WiFi certification tests.
+        */
+       u8 forced_ps;
+
        /*
         *
         * Specifies the interval of the connection keep-alive null-func

diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index 15353fa..02da445 100644 (file)
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -358,7 +358,7 @@ static ssize_t dynamic_ps_timeout_write(struct file *file,
         */
 
        wl12xx_for_each_wlvif_sta(wl, wlvif) {
-               if (test_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags))
+               if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
                        wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
        }
 

diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index fa61dfd..b828149 100644 (file)
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -247,6 +247,7 @@ static struct conf_drv_settings default_conf = {
                .psm_exit_retries            = 16,
                .psm_entry_nullfunc_retries  = 3,
                .dynamic_ps_timeout          = 100,
+               .forced_ps                   = false,
                .keep_alive_interval         = 55000,
                .max_listen_interval         = 20,
        },
@@ -2510,17 +2511,29 @@ static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 
                if ((conf->flags & IEEE80211_CONF_PS) &&
                    test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
-                   !test_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags)) {
+                   !test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
 
-                       wl1271_debug(DEBUG_PSM, "auto ps enabled");
+                       int ps_mode;
+                       char *ps_mode_str;
+
+                       if (wl->conf.conn.forced_ps) {
+                               ps_mode = STATION_POWER_SAVE_MODE;
+                               ps_mode_str = "forced";
+                       } else {
+                               ps_mode = STATION_AUTO_PS_MODE;
+                               ps_mode_str = "auto";
+                       }
+
+                       wl1271_debug(DEBUG_PSM, "%s ps enabled", ps_mode_str);
+
+                       ret = wl1271_ps_set_mode(wl, wlvif, ps_mode);
 
-                       ret = wl1271_ps_set_mode(wl, wlvif,
-                                                STATION_AUTO_PS_MODE);
                        if (ret < 0)
-                               wl1271_warning("enter auto ps failed %d", ret);
+                               wl1271_warning("enter %s ps failed %d",
+                                              ps_mode_str, ret);
 
                } else if (!(conf->flags & IEEE80211_CONF_PS) &&
-                          test_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags)) {
+                          test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
 
                        wl1271_debug(DEBUG_PSM, "auto ps disabled");
 

diff --git a/drivers/net/wireless/wl12xx/ps.c b/drivers/net/wireless/wl12xx/ps.c
index d197922..23d6750 100644 (file)
--- a/drivers/net/wireless/wl12xx/ps.c
+++ b/drivers/net/wireless/wl12xx/ps.c
@@ -56,7 +56,7 @@ void wl1271_elp_work(struct work_struct *work)
                if (wlvif->bss_type == BSS_TYPE_AP_BSS)
                        goto out;
 
-               if (!test_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags) &&
+               if (!test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags) &&
                    test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags))
                        goto out;
        }
@@ -84,7 +84,7 @@ void wl1271_ps_elp_sleep(struct wl1271 *wl)
                if (wlvif->bss_type == BSS_TYPE_AP_BSS)
                        return;
 
-               if (!test_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags) &&
+               if (!test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags) &&
                    test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags))
                        return;
        }
@@ -167,6 +167,7 @@ int wl1271_ps_set_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 
        switch (mode) {
        case STATION_AUTO_PS_MODE:
+       case STATION_POWER_SAVE_MODE:
                wl1271_debug(DEBUG_PSM, "entering psm (mode=%d,timeout=%u)",
                             mode, timeout);
 
@@ -182,7 +183,7 @@ int wl1271_ps_set_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
                if (ret < 0)
                        return ret;
 
-               set_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags);
+               set_bit(WLVIF_FLAG_IN_PS, &wlvif->flags);
 
                /* enable beacon early termination. Not relevant for 5GHz */
                if (wlvif->band == IEEE80211_BAND_2GHZ) {
@@ -205,9 +206,8 @@ int wl1271_ps_set_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
                if (ret < 0)
                        return ret;
 
-               clear_bit(WLVIF_FLAG_IN_AUTO_PS, &wlvif->flags);
+               clear_bit(WLVIF_FLAG_IN_PS, &wlvif->flags);
                break;
-       case STATION_POWER_SAVE_MODE:
        default:
                wl1271_warning("trying to set ps to unsupported mode %d", mode);
                ret = -EINVAL;

diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index 9baed6b..61c58c1 100644 (file)
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -254,7 +254,7 @@ enum wl12xx_vif_flags {
        WLVIF_FLAG_STA_ASSOCIATED,
        WLVIF_FLAG_IBSS_JOINED,
        WLVIF_FLAG_AP_STARTED,
-       WLVIF_FLAG_IN_AUTO_PS,
+       WLVIF_FLAG_IN_PS,
        WLVIF_FLAG_STA_STATE_SENT,
        WLVIF_FLAG_RX_STREAMING_STARTED,
        WLVIF_FLAG_PSPOLL_FAILURE,