ath/ath6kl/testmode.c

0001 /*
0002  * Copyright (c) 2010-2011 Atheros Communications Inc.
0003  * Copyright (c) 2011 Qualcomm Atheros, Inc.
0004  *
0005  * Permission to use, copy, modify, and/or distribute this software for any
0006  * purpose with or without fee is hereby granted, provided that the above
0007  * copyright notice and this permission notice appear in all copies.
0008  *
0009  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
0010  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
0011  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
0012  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
0013  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
0014  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
0015  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
0016  */
0017
0018 #include "testmode.h"
0019 #include "debug.h"
0020
0021 #include <net/netlink.h>
0022
0023 enum ath6kl_tm_attr {
0024     __ATH6KL_TM_ATTR_INVALID    = 0,
0025     ATH6KL_TM_ATTR_CMD      = 1,
0026     ATH6KL_TM_ATTR_DATA     = 2,
0027
0028     /* keep last */
0029     __ATH6KL_TM_ATTR_AFTER_LAST,
0030     ATH6KL_TM_ATTR_MAX      = __ATH6KL_TM_ATTR_AFTER_LAST - 1,
0031 };
0032
0033 enum ath6kl_tm_cmd {
0034     ATH6KL_TM_CMD_TCMD      = 0,
0035     ATH6KL_TM_CMD_RX_REPORT     = 1,    /* not used anymore */
0036 };
0037
0038 #define ATH6KL_TM_DATA_MAX_LEN      5000
0039
0040 static const struct nla_policy ath6kl_tm_policy[ATH6KL_TM_ATTR_MAX + 1] = {
0041     [ATH6KL_TM_ATTR_CMD]        = { .type = NLA_U32 },
0042     [ATH6KL_TM_ATTR_DATA]       = { .type = NLA_BINARY,
0043                         .len = ATH6KL_TM_DATA_MAX_LEN },
0044 };
0045
0046 void ath6kl_tm_rx_event(struct ath6kl *ar, void *buf, size_t buf_len)
0047 {
0048     struct sk_buff *skb;
0049
0050     if (!buf || buf_len == 0)
0051         return;
0052
0053     skb = cfg80211_testmode_alloc_event_skb(ar->wiphy, buf_len, GFP_KERNEL);
0054     if (!skb) {
0055         ath6kl_warn("failed to allocate testmode rx skb!\n");
0056         return;
0057     }
0058     if (nla_put_u32(skb, ATH6KL_TM_ATTR_CMD, ATH6KL_TM_CMD_TCMD) ||
0059         nla_put(skb, ATH6KL_TM_ATTR_DATA, buf_len, buf))
0060         goto nla_put_failure;
0061     cfg80211_testmode_event(skb, GFP_KERNEL);
0062     return;
0063
0064 nla_put_failure:
0065     kfree_skb(skb);
0066     ath6kl_warn("nla_put failed on testmode rx skb!\n");
0067 }
0068
0069 int ath6kl_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
0070           void *data, int len)
0071 {
0072     struct ath6kl *ar = wiphy_priv(wiphy);
0073     struct nlattr *tb[ATH6KL_TM_ATTR_MAX + 1];
0074     int err, buf_len;
0075     void *buf;
0076
0077     err = nla_parse_deprecated(tb, ATH6KL_TM_ATTR_MAX, data, len,
0078                    ath6kl_tm_policy, NULL);
0079     if (err)
0080         return err;
0081
0082     if (!tb[ATH6KL_TM_ATTR_CMD])
0083         return -EINVAL;
0084
0085     switch (nla_get_u32(tb[ATH6KL_TM_ATTR_CMD])) {
0086     case ATH6KL_TM_CMD_TCMD:
0087         if (!tb[ATH6KL_TM_ATTR_DATA])
0088             return -EINVAL;
0089
0090         buf = nla_data(tb[ATH6KL_TM_ATTR_DATA]);
0091         buf_len = nla_len(tb[ATH6KL_TM_ATTR_DATA]);
0092
0093         ath6kl_wmi_test_cmd(ar->wmi, buf, buf_len);
0094
0095         return 0;
0096
0097     case ATH6KL_TM_CMD_RX_REPORT:
0098     default:
0099         return -EOPNOTSUPP;
0100     }
0101 }