drivers/net/wireless/ath/ath6kl/testmode.c

   1 /*
   2  * Copyright (c) 2010-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011 Qualcomm Atheros, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include "testmode.h"
  19 #include "debug.h"
  20
  21 #include <net/netlink.h>
  22
  23 enum ath6kl_tm_attr {
  24         __ATH6KL_TM_ATTR_INVALID        = 0,
  25         ATH6KL_TM_ATTR_CMD              = 1,
  26         ATH6KL_TM_ATTR_DATA             = 2,
  27
  28         /* keep last */
  29         __ATH6KL_TM_ATTR_AFTER_LAST,
  30         ATH6KL_TM_ATTR_MAX              = __ATH6KL_TM_ATTR_AFTER_LAST - 1,
  31 };
  32
  33 enum ath6kl_tm_cmd {
  34         ATH6KL_TM_CMD_TCMD              = 0,
  35         ATH6KL_TM_CMD_RX_REPORT         = 1,    /* not used anymore */
  36 };
  37
  38 #define ATH6KL_TM_DATA_MAX_LEN          5000
  39
  40 static const struct nla_policy ath6kl_tm_policy[ATH6KL_TM_ATTR_MAX + 1] = {
  41         [ATH6KL_TM_ATTR_CMD]            = { .type = NLA_U32 },
  42         [ATH6KL_TM_ATTR_DATA]           = { .type = NLA_BINARY,
  43                                             .len = ATH6KL_TM_DATA_MAX_LEN },
  44 };
  45
  46 void ath6kl_tm_rx_event(struct ath6kl *ar, void *buf, size_t buf_len)
  47 {
  48         struct sk_buff *skb;
  49
  50         if (!buf || buf_len == 0)
  51                 return;
  52
  53         skb = cfg80211_testmode_alloc_event_skb(ar->wiphy, buf_len, GFP_KERNEL);
  54         if (!skb) {
  55                 ath6kl_warn("failed to allocate testmode rx skb!\n");
  56                 return;
  57         }
  58         if (nla_put_u32(skb, ATH6KL_TM_ATTR_CMD, ATH6KL_TM_CMD_TCMD) ||
  59             nla_put(skb, ATH6KL_TM_ATTR_DATA, buf_len, buf))
  60                 goto nla_put_failure;
  61         cfg80211_testmode_event(skb, GFP_KERNEL);
  62         return;
  63
  64 nla_put_failure:
  65         kfree_skb(skb);
  66         ath6kl_warn("nla_put failed on testmode rx skb!\n");
  67 }
  68
  69 int ath6kl_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
  70                   void *data, int len)
  71 {
  72         struct ath6kl *ar = wiphy_priv(wiphy);
  73         struct nlattr *tb[ATH6KL_TM_ATTR_MAX + 1];
  74         int err, buf_len;
  75         void *buf;
  76
  77         err = nla_parse(tb, ATH6KL_TM_ATTR_MAX, data, len,
  78                         ath6kl_tm_policy);
  79         if (err)
  80                 return err;
  81
  82         if (!tb[ATH6KL_TM_ATTR_CMD])
  83                 return -EINVAL;
  84
  85         switch (nla_get_u32(tb[ATH6KL_TM_ATTR_CMD])) {
  86         case ATH6KL_TM_CMD_TCMD:
  87                 if (!tb[ATH6KL_TM_ATTR_DATA])
  88                         return -EINVAL;
  89
  90                 buf = nla_data(tb[ATH6KL_TM_ATTR_DATA]);
  91                 buf_len = nla_len(tb[ATH6KL_TM_ATTR_DATA]);
  92
  93                 ath6kl_wmi_test_cmd(ar->wmi, buf, buf_len);
  94
  95                 return 0;
  96
  97                 break;
  98         case ATH6KL_TM_CMD_RX_REPORT:
  99         default:
 100                 return -EOPNOTSUPP;
 101         }
 102 }