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/*
* Copyright (c) 2010-2011 Atheros Communications 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 <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,
};
#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_report_event(struct ath6kl *ar, void *buf, size_t buf_len)
{
if (down_interruptible(&ar->sem))
return;
kfree(ar->tm.rx_report);
ar->tm.rx_report = kmemdup(buf, buf_len, GFP_KERNEL);
ar->tm.rx_report_len = buf_len;
up(&ar->sem);
wake_up(&ar->event_wq);
}
static int ath6kl_tm_rx_report(struct ath6kl *ar, void *buf, size_t buf_len,
struct sk_buff *skb)
{
int ret = 0;
long left;
if (down_interruptible(&ar->sem))
return -ERESTARTSYS;
if (!test_bit(WMI_READY, &ar->flag)) {
ret = -EIO;
goto out;
}
if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
ret = -EBUSY;
goto out;
}
if (ath6kl_wmi_test_cmd(ar->wmi, buf, buf_len) < 0) {
up(&ar->sem);
return -EIO;
}
left = wait_event_interruptible_timeout(ar->event_wq,
ar->tm.rx_report != NULL,
WMI_TIMEOUT);
if (left == 0) {
ret = -ETIMEDOUT;
goto out;
} else if (left < 0) {
ret = left;
goto out;
}
if (ar->tm.rx_report == NULL || ar->tm.rx_report_len == 0) {
ret = -EINVAL;
goto out;
}
NLA_PUT(skb, ATH6KL_TM_ATTR_DATA, ar->tm.rx_report_len,
ar->tm.rx_report);
kfree(ar->tm.rx_report);
ar->tm.rx_report = NULL;
out:
up(&ar->sem);
return ret;
nla_put_failure:
ret = -ENOBUFS;
goto out;
}
int ath6kl_tm_cmd(struct wiphy *wiphy, void *data, int len)
{
struct ath6kl *ar = wiphy_priv(wiphy);
struct nlattr *tb[ATH6KL_TM_ATTR_MAX + 1];
int err, buf_len, reply_len;
struct sk_buff *skb;
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:
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]);
reply_len = nla_total_size(ATH6KL_TM_DATA_MAX_LEN);
skb = cfg80211_testmode_alloc_reply_skb(wiphy, reply_len);
if (!skb)
return -ENOMEM;
err = ath6kl_tm_rx_report(ar, buf, buf_len, skb);
if (err < 0) {
kfree_skb(skb);
return err;
}
return cfg80211_testmode_reply(skb);
default:
return -EOPNOTSUPP;
}
}
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