libertas: Improvements on automatic tx power control via SIOCSIWTXPOW (fixups)

This patch addresses comments from Dan Williams about the patch
committed as "libertas: Improvements on automatic tx power control via
SIOCSIWTXPOW."

Signed-off-by: Anna Neal <anna@cozybit.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 19 insertions, 2 deletions

diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index aee19fa844e4..a912fb68c099 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1949,7 +1949,7 @@ int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
         cmd.action = cpu_to_le16(CMD_ACT_SET);
         cmd.enable = !!enable;
-        cmd.usesnr = !!enable;
+        cmd.usesnr = !!usesnr;
         cmd.P0 = p0;
         cmd.P1 = p1;
         cmd.P2 = p2;
diff --git a/drivers/net/wireless/libertas/cmd.h b/drivers/net/wireless/libertas/cmd.h
index d002160f597d..36be4c9703e0 100644
--- a/drivers/net/wireless/libertas/cmd.h
+++ b/drivers/net/wireless/libertas/cmd.h
@@ -32,6 +32,12 @@ int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
                 int8_t p2, int usesnr);
 
+int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
+                int8_t p1, int8_t p2);
+
+int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
+                int8_t p2, int usesnr);
+
 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
                      struct cmd_header *resp);
 
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h
index 58d11a35e61b..076a636e8f62 100644
--- a/drivers/net/wireless/libertas/defs.h
+++ b/drivers/net/wireless/libertas/defs.h
@@ -189,7 +189,6 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in
 #define MRVDRV_CMD_UPLD_RDY             0x0008
 #define MRVDRV_CARDEVENT                0x0010
 
-
 /* Automatic TX control default levels */
 #define POW_ADAPT_DEFAULT_P0 13
 #define POW_ADAPT_DEFAULT_P1 15
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index 6ebdd7f161f1..82c3e5a50ea6 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -1025,6 +1025,18 @@ static int lbs_set_rate(struct net_device *dev, struct iw_request_info *info,
                                 new_rate);
                         goto out;
                 }
+                if (priv->fwrelease < 0x09000000) {
+                        ret = lbs_set_power_adapt_cfg(priv, 0,
+                                        POW_ADAPT_DEFAULT_P0,
+                                        POW_ADAPT_DEFAULT_P1,
+                                        POW_ADAPT_DEFAULT_P2);
+                        if (ret)
+                                goto out;
+                }
+                ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1,
+                                TPC_DEFAULT_P2, 1);
+                if (ret)
+                        goto out;
         }
 
         /* Try the newer command first (Firmware Spec 5.1 and above) */