From: Xinming Hu <h...@marvell.com>

Add net_dev ndo_do_ioctl handler, which could be used for
downloading host command by utility in manufactory test

Signed-off-by: Xinming Hu <h...@marvell.com>
Signed-off-by: Cathy Luo <c...@marvell.com>
Signed-off-by: Ganapathi Bhat <gb...@marvell.com>
---
 drivers/net/wireless/marvell/mwifiex/cmdevt.c | 59 +++++++++++++++++++++++++++
 drivers/net/wireless/marvell/mwifiex/main.c   | 23 +++++++++++
 drivers/net/wireless/marvell/mwifiex/main.h   |  7 +++-
 3 files changed, 88 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/cmdevt.c 
b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
index 0edc5d6..86ee399 100644
--- a/drivers/net/wireless/marvell/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
@@ -839,6 +839,8 @@ int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
                        hostcmd = adapter->curr_cmd->data_buf;
                        hostcmd->len = size;
                        memcpy(hostcmd->cmd, resp, size);
+                       adapter->hostcmd_resp_data.len = size;
+                       memcpy(adapter->hostcmd_resp_data.cmd, resp, size);
                }
        }
        orig_cmdresp_no = le16_to_cpu(resp->command);
@@ -1221,6 +1223,63 @@ int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private 
*priv,
 }
 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config);
 
+/* This function get hostcmd data from userspace and construct a cmd
+ * to be download to FW.
+ */
+int mwifiex_process_host_command(struct mwifiex_private *priv,
+                                struct ifreq *req)
+{
+       struct mwifiex_ds_misc_cmd *hostcmd_buf;
+       struct host_cmd_ds_command *cmd;
+       struct mwifiex_adapter *adapter = priv->adapter;
+       int ret;
+
+       hostcmd_buf = kzalloc(sizeof(*hostcmd_buf), GFP_KERNEL);
+       if (!hostcmd_buf)
+               return -ENOMEM;
+
+       cmd = (void *)hostcmd_buf->cmd;
+
+       if (copy_from_user(cmd, req->ifr_data,
+                          sizeof(cmd->command) + sizeof(cmd->size))) {
+               ret = -EFAULT;
+               goto done;
+       }
+
+       hostcmd_buf->len = le16_to_cpu(cmd->size);
+       if (hostcmd_buf->len > MWIFIEX_SIZE_OF_CMD_BUFFER) {
+               ret = -EINVAL;
+               goto done;
+       }
+
+       if (copy_from_user(cmd, req->ifr_data, hostcmd_buf->len)) {
+               ret = -EFAULT;
+               goto done;
+       }
+
+       if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd_buf, true)) {
+               dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
+               ret = -EFAULT;
+               goto done;
+       }
+
+       if (adapter->hostcmd_resp_data.len > hostcmd_buf->len) {
+               ret = -EFBIG;
+               goto done;
+       }
+
+       if (copy_to_user(req->ifr_data, adapter->hostcmd_resp_data.cmd,
+                        adapter->hostcmd_resp_data.len)) {
+               ret = -EFAULT;
+               goto done;
+       }
+
+       ret = 0;
+done:
+       kfree(hostcmd_buf);
+       return ret;
+}
+
 /*
  * This function handles the command response of a sleep confirm command.
  *
diff --git a/drivers/net/wireless/marvell/mwifiex/main.c 
b/drivers/net/wireless/marvell/mwifiex/main.c
index ee40b73..3e7700f 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -1265,12 +1265,35 @@ static struct net_device_stats 
*mwifiex_get_stats(struct net_device *dev)
        return mwifiex_1d_to_wmm_queue[skb->priority];
 }
 
+static int mwifiex_do_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
+{
+       struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+       int ret;
+
+       if (!priv->adapter->mfg_mode)
+               return -EINVAL;
+
+       mwifiex_dbg(priv->adapter, "ioctl cmd = 0x%x\n", cmd);
+
+       switch (cmd) {
+       case MWIFIEX_HOSTCMD_IOCTL:
+               ret = mwifiex_process_host_command(priv, req);
+               break;
+       default:
+               ret = -EINVAL;
+               break;
+       }
+
+       return ret;
+}
+
 /* Network device handlers */
 static const struct net_device_ops mwifiex_netdev_ops = {
        .ndo_open = mwifiex_open,
        .ndo_stop = mwifiex_close,
        .ndo_start_xmit = mwifiex_hard_start_xmit,
        .ndo_set_mac_address = mwifiex_ndo_set_mac_address,
+       .ndo_do_ioctl = mwifiex_do_ioctl,
        .ndo_validate_addr = eth_validate_addr,
        .ndo_tx_timeout = mwifiex_tx_timeout,
        .ndo_get_stats = mwifiex_get_stats,
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h 
b/drivers/net/wireless/marvell/mwifiex/main.h
index a76bd79..4639f49 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.h
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
@@ -160,6 +160,9 @@ enum {
 /* Threshold for tx_timeout_cnt before we trigger a card reset */
 #define TX_TIMEOUT_THRESHOLD   6
 
+/* IOCTL number used for hostcmd process*/
+#define MWIFIEX_HOSTCMD_IOCTL (SIOCDEVPRIVATE + 1)
+
 #define MWIFIEX_DRV_INFO_SIZE_MAX 0x40000
 
 /* Address alignment */
@@ -912,6 +915,7 @@ struct mwifiex_adapter {
        u8 event_received;
        u8 data_received;
        u16 seq_num;
+       struct mwifiex_ds_misc_cmd hostcmd_resp_data;
        struct cmd_ctrl_node *cmd_pool;
        struct cmd_ctrl_node *curr_cmd;
        /* spin lock for command */
@@ -1611,7 +1615,8 @@ int mwifiex_get_tdls_list(struct mwifiex_private *priv,
 u8 mwifiex_get_center_freq_index(struct mwifiex_private *priv, u8 band,
                                 u32 pri_chan, u8 chan_bw);
 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter);
-
+int mwifiex_process_host_command(struct mwifiex_private *priv,
+                                struct ifreq *req);
 int mwifiex_tdls_check_tx(struct mwifiex_private *priv, struct sk_buff *skb);
 void mwifiex_flush_auto_tdls_list(struct mwifiex_private *priv);
 void mwifiex_auto_tdls_update_peer_status(struct mwifiex_private *priv,
-- 
1.9.1

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