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kernel/linux-rt-4.4.41/drivers/net/wireless/ath/ath6kl/testmode.c 2.7 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (c) 2010-2011 Atheros Communications Inc.
   * Copyright (c) 2011 Qualcomm Atheros, Inc.
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include "testmode.h"
  #include "debug.h"
  
  #include <net/netlink.h>
  
  enum ath6kl_tm_attr {
  	__ATH6KL_TM_ATTR_INVALID	= 0,
  	ATH6KL_TM_ATTR_CMD		= 1,
  	ATH6KL_TM_ATTR_DATA		= 2,
  
  	/* keep last */
  	__ATH6KL_TM_ATTR_AFTER_LAST,
  	ATH6KL_TM_ATTR_MAX		= __ATH6KL_TM_ATTR_AFTER_LAST - 1,
  };
  
  enum ath6kl_tm_cmd {
  	ATH6KL_TM_CMD_TCMD		= 0,
  	ATH6KL_TM_CMD_RX_REPORT		= 1,	/* not used anymore */
  };
  
  #define ATH6KL_TM_DATA_MAX_LEN		5000
  
  static const struct nla_policy ath6kl_tm_policy[ATH6KL_TM_ATTR_MAX + 1] = {
  	[ATH6KL_TM_ATTR_CMD]		= { .type = NLA_U32 },
  	[ATH6KL_TM_ATTR_DATA]		= { .type = NLA_BINARY,
  					    .len = ATH6KL_TM_DATA_MAX_LEN },
  };
  
  void ath6kl_tm_rx_event(struct ath6kl *ar, void *buf, size_t buf_len)
  {
  	struct sk_buff *skb;
  
  	if (!buf || buf_len == 0)
  		return;
  
  	skb = cfg80211_testmode_alloc_event_skb(ar->wiphy, buf_len, GFP_KERNEL);
  	if (!skb) {
  		ath6kl_warn("failed to allocate testmode rx skb!
  ");
  		return;
  	}
  	if (nla_put_u32(skb, ATH6KL_TM_ATTR_CMD, ATH6KL_TM_CMD_TCMD) ||
  	    nla_put(skb, ATH6KL_TM_ATTR_DATA, buf_len, buf))
  		goto nla_put_failure;
  	cfg80211_testmode_event(skb, GFP_KERNEL);
  	return;
  
  nla_put_failure:
  	kfree_skb(skb);
  	ath6kl_warn("nla_put failed on testmode rx skb!
  ");
  }
  
  int ath6kl_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
  		  void *data, int len)
  {
  	struct ath6kl *ar = wiphy_priv(wiphy);
  	struct nlattr *tb[ATH6KL_TM_ATTR_MAX + 1];
  	int err, buf_len;
  	void *buf;
  
  	err = nla_parse(tb, ATH6KL_TM_ATTR_MAX, data, len,
  			ath6kl_tm_policy);
  	if (err)
  		return err;
  
  	if (!tb[ATH6KL_TM_ATTR_CMD])
  		return -EINVAL;
  
  	switch (nla_get_u32(tb[ATH6KL_TM_ATTR_CMD])) {
  	case ATH6KL_TM_CMD_TCMD:
  		if (!tb[ATH6KL_TM_ATTR_DATA])
  			return -EINVAL;
  
  		buf = nla_data(tb[ATH6KL_TM_ATTR_DATA]);
  		buf_len = nla_len(tb[ATH6KL_TM_ATTR_DATA]);
  
  		ath6kl_wmi_test_cmd(ar->wmi, buf, buf_len);
  
  		return 0;
  
  		break;
  	case ATH6KL_TM_CMD_RX_REPORT:
  	default:
  		return -EOPNOTSUPP;
  	}
  }