mwl8k: prepare for posting per-vif firmware commands

One of the bytes in the mwl8k firmware command header is the 'macid'
byte, which for per-vif commands indicates which of the BSSes this
command is intended for.  (For commands that are not per-vif commands,
this byte can just be 0.)

This patch adds mwl8k_post_pervif_cmd(), which will take the macid
assigned to this interface (to be done in ->add_interface()), copy it
into the command packet macid field, and post the command as usual.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index ee7d8a6..ea39ef6 100644 (file)
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -214,6 +214,9 @@ struct mwl8k_vif {
        struct list_head list;
        struct ieee80211_vif *vif;
 
+       /* Firmware macid for this vif.  */
+       int macid;
+
        /* Non AMPDU sequence number assigned by driver.  */
        u16 seqno;
 };
@@ -419,7 +422,8 @@ static int mwl8k_request_firmware(struct mwl8k_priv *priv)
 struct mwl8k_cmd_pkt {
        __le16  code;
        __le16  length;
-       __le16  seq_num;
+       __u8    seq_num;
+       __u8    macid;
        __le16  result;
        char    payload[0];
 } __attribute__((packed));
@@ -477,6 +481,7 @@ static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
 
        cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
        cmd->seq_num = 0;
+       cmd->macid = 0;
        cmd->result = 0;
 
        done = 0;
@@ -1595,6 +1600,15 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
        return rc;
 }
 
+static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
+                                struct ieee80211_vif *vif,
+                                struct mwl8k_cmd_pkt *cmd)
+{
+       if (vif != NULL)
+               cmd->macid = MWL8K_VIF(vif)->macid;
+       return mwl8k_post_cmd(hw, cmd);
+}
+
 /*
  * Setup code shared between STA and AP firmware images.
  */
@@ -3283,6 +3297,7 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw,
        mwl8k_vif = MWL8K_VIF(vif);
        memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
        mwl8k_vif->vif = vif;
+       mwl8k_vif->macid = 0;
        mwl8k_vif->seqno = 0;
 
        list_add_tail(&mwl8k_vif->list, &priv->vif_list);