libertas: support boot commands to write persistent firmware and bootloader

Add locking and non-locking versions of if_usb_prog_firmware to support
programming firmware after and before driver bring-up respectively.  Add more
suitable error codes for firmware programming process.  Add capability checks
for persistent features before attempting to use them.

Based on patches from Brajesh Dave and Priyank Singh.

Signed-off-by: Brian Cavagnolo <brian@cozybit.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 17 insertions, 4 deletions

diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 75427e61898d..af5fd709887f 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1033,9 +1033,9 @@ int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
         return ret;
 }
 
-int lbs_mesh_config_send(struct lbs_private *priv,
-                         struct cmd_ds_mesh_config *cmd,
-                         uint16_t action, uint16_t type)
+static int __lbs_mesh_config_send(struct lbs_private *priv,
+                                  struct cmd_ds_mesh_config *cmd,
+                                  uint16_t action, uint16_t type)
 {
         int ret;
 
@@ -1054,6 +1054,19 @@ int lbs_mesh_config_send(struct lbs_private *priv,
         return ret;
 }
 
+int lbs_mesh_config_send(struct lbs_private *priv,
+                         struct cmd_ds_mesh_config *cmd,
+                         uint16_t action, uint16_t type)
+{
+        int ret;
+
+        if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
+                return -EOPNOTSUPP;
+
+        ret = __lbs_mesh_config_send(priv, cmd, action, type);
+        return ret;
+}
+
 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
@@ -1095,7 +1108,7 @@ int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
                     action, priv->mesh_tlv, chan,
                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
 
-        return lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
+        return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
 }
 
 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,