wl1271: Add retry implementation for PSM entries

PSM entries can fail (transmitting the corresponding null-func may not
be heard by the AP.) Previously, this scenario was not detected, and
out-of-sync between STA and AP could occur.

Add retry implementation for the entries to recover from the situation.

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

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 0ae506a2e90b..d2149fcd3cf1 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -222,7 +222,8 @@ static struct conf_drv_settings default_conf = {
                         .snr_pkt_avg_weight  = 10
                 },
                 .bet_enable                  = CONF_BET_MODE_ENABLE,
-                .bet_max_consecutive         = 100
+                .bet_max_consecutive         = 100,
+                .psm_entry_retries           = 3
         },
         .init = {
                 .sr_err_tbl = {
@@ -973,6 +974,7 @@ static void wl1271_op_stop(struct ieee80211_hw *hw)
         wl->rx_counter = 0;
         wl->elp = false;
         wl->psm = 0;
+        wl->psm_entry_retry = 0;
         wl->tx_queue_stopped = false;
         wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
         wl->tx_blocks_available = 0;
@@ -1822,6 +1824,7 @@ static int __devinit wl1271_probe(struct spi_device *spi)
         wl->elp = false;
         wl->psm = 0;
         wl->psm_requested = false;
+        wl->psm_entry_retry = 0;
         wl->tx_queue_stopped = false;
         wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
         wl->basic_rate_set = WL1271_DEFAULT_BASIC_RATE_SET;