diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/testmode.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/testmode.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/testmode.c b/drivers/net/wireless/ath/ath6kl/testmode.c new file mode 100644 index 000000000000..381eb66a605f --- /dev/null +++ b/drivers/net/wireless/ath/ath6kl/testmode.c @@ -0,0 +1,167 @@ +/* + * 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; + } +} |