On Wed, Sep 20, 2017 at 12:14 PM, Xinming Hu <huxinming820@xxxxxxxxx> wrote:
> From: Xinming Hu <huxm@xxxxxxxxxxx>
>
> 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 <huxm@xxxxxxxxxxx>
> Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
> Signed-off-by: Ganapathi Bhat <gbhat@xxxxxxxxxxx>
> ---
> 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);
will it be sizeof(*hostcmd_buf) or sizeof( struct mwifiex_ds_misc_cmd *) ?
> + 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;
ret can be used instead of returning -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
>
