LXR linux/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
  23enum 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
  33enum 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
  40static 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
  46void 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
  64nla_put_failure:
  65        kfree_skb(skb);
  66        ath6kl_warn("nla_put failed on testmode rx skb!\n");
  67}
  68
  69int 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_deprecated(tb, ATH6KL_TM_ATTR_MAX, data, len,
  78                                   ath6kl_tm_policy, NULL);
  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        case ATH6KL_TM_CMD_RX_REPORT:
  98        default:
  99                return -EOPNOTSUPP;
 100        }
 101}
 102