mwifiex: add del_station handler

This patch adds cfg80211 del_station handler for mwifiex.
If bss is not started or there are no stations in associated
stations list, no action is taken. If argument received is
null/broadcast mac, all stations in associated station list are
deauthenticated.

Patch also deletes related RxReorder stream and TxBA stream tables
for related station.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index b04b1db29100..2de882dead0f 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -689,6 +689,23 @@ mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
         return 0;
 }
 
+/* This function prepares AP specific deauth command with mac supplied in
+ * function parameter.
+ */
+static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
+                                      struct host_cmd_ds_command *cmd, u8 *mac)
+{
+        struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
+
+        cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
+        memcpy(sta_deauth->mac, mac, ETH_ALEN);
+        sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
+
+        cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
+                                S_DS_GEN);
+        return 0;
+}
+
 /* This function prepares the AP specific commands before sending them
  * to the firmware.
  * This is a generic function which calls specific command preparation
@@ -710,6 +727,10 @@ int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
                 cmd->command = cpu_to_le16(cmd_no);
                 cmd->size = cpu_to_le16(S_DS_GEN);
                 break;
+        case HostCmd_CMD_UAP_STA_DEAUTH:
+                if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
+                        return -1;
+                break;
         default:
                 dev_err(priv->adapter->dev,
                         "PREP_CMD: unknown cmd %#x\n", cmd_no);