libertas: convert sleep/wake config direct commands

Confirm sleep event: they come very regularly, eventually several times per
second. Therefore we want to send the config command as fast as possible.
The old code pre-set the command in priv->lbs_ps_confirm_sleep. However, the
byte sequence to be sent to the hardware is the same for all interfaces. So
this patch make this an extern structure, initialized at module load time.

Config wake event: normal conversion to a direct command. However, I don't know
how to trigger a "HOST AWAKE" event from the firmware, so this part is
untested.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 8 deletions

diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index d0e4c3b6deaa..efff63fb6b66 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -37,6 +37,11 @@ EXPORT_SYMBOL_GPL(lbs_debug);
 module_param_named(libertas_debug, lbs_debug, int, 0644);
 
 
+/* This global structure is used to send the confirm_sleep command as
+ * fast as possible down to the firmware. */
+struct cmd_confirm_sleep confirm_sleep;
+
+
 #define LBS_TX_PWR_DEFAULT              20      /*100mW */
 #define LBS_TX_PWR_US_DEFAULT           20      /*100mW */
 #define LBS_TX_PWR_JP_DEFAULT           16      /*50mW */
@@ -1013,14 +1018,6 @@ static int lbs_init_adapter(struct lbs_private *priv)
                               &priv->network_free_list);
         }
 
-        priv->lbs_ps_confirm_sleep.seqnum = cpu_to_le16(++priv->seqnum);
-        priv->lbs_ps_confirm_sleep.command =
-            cpu_to_le16(CMD_802_11_PS_MODE);
-        priv->lbs_ps_confirm_sleep.size =
-            cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
-        priv->lbs_ps_confirm_sleep.action =
-            cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
-
         memset(priv->current_addr, 0xff, ETH_ALEN);
 
         priv->connect_status = LBS_DISCONNECTED;
@@ -1462,6 +1459,10 @@ EXPORT_SYMBOL_GPL(lbs_interrupt);
 static int __init lbs_init_module(void)
 {
         lbs_deb_enter(LBS_DEB_MAIN);
+        memset(&confirm_sleep, 0, sizeof(confirm_sleep));
+        confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE);
+        confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep));
+        confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
         lbs_debugfs_init();
         lbs_deb_leave(LBS_DEB_MAIN);
         return 0;