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authorAmit Beka <amit.beka@intel.com>2012-03-07 09:52:29 -0800
committerJohn W. Linville <linville@tuxdriver.com>2012-03-08 13:59:52 -0500
commit0aef8ddc8bedac1db4c96fddc9fb1b44b730cf4f (patch)
tree5d1e270ed94fc179643d7d4229aa4e7959c35e85 /drivers/net/wireless/iwlwifi/iwl-testmode.c
parent8722c899a07f45457464803142bd1c2d2a2c3bd8 (diff)
downloadlinux-0aef8ddc8bedac1db4c96fddc9fb1b44b730cf4f.tar.gz
iwlwifi: add testmode command for rx forwarding
Added a testmode command which tells iwl_rx_dispatch to send the RX both as a notification to nl80211 and with the registered RX handlers. This is used for monitoring RX from userspace while preserving the regular flows in the driver. Signed-off-by: Amit Beka <amit.beka@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-testmode.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-testmode.c32
1 files changed, 29 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.c b/drivers/net/wireless/iwlwifi/iwl-testmode.c
index 1d732092ebe7..b8044bcd5044 100644
--- a/drivers/net/wireless/iwlwifi/iwl-testmode.c
+++ b/drivers/net/wireless/iwlwifi/iwl-testmode.c
@@ -125,6 +125,8 @@ struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = {
[IWL_TM_ATTR_FW_TYPE] = { .type = NLA_U32, },
[IWL_TM_ATTR_FW_INST_SIZE] = { .type = NLA_U32, },
[IWL_TM_ATTR_FW_DATA_SIZE] = { .type = NLA_U32, },
+
+ [IWL_TM_ATTR_ENABLE_NOTIFICATION] = {.type = NLA_FLAG, },
};
/*
@@ -194,7 +196,7 @@ nla_put_failure:
void iwl_testmode_init(struct iwl_priv *priv)
{
- priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
+ priv->pre_rx_handler = NULL;
priv->testmode_trace.trace_enabled = false;
priv->testmode_mem.read_in_progress = false;
}
@@ -770,9 +772,13 @@ static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
}
owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]);
- if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM))
+ if (owner == IWL_OWNERSHIP_DRIVER) {
priv->ucode_owner = owner;
- else {
+ priv->pre_rx_handler = NULL;
+ } else if (owner == IWL_OWNERSHIP_TM) {
+ priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
+ priv->ucode_owner = owner;
+ } else {
IWL_ERR(priv, "Invalid owner\n");
return -EINVAL;
}
@@ -937,6 +943,20 @@ static int iwl_testmode_buffer_dump(struct ieee80211_hw *hw,
return -ENOBUFS;
}
+static int iwl_testmode_notifications(struct ieee80211_hw *hw,
+ struct nlattr **tb)
+{
+ struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
+ bool enable;
+
+ enable = nla_get_flag(tb[IWL_TM_ATTR_ENABLE_NOTIFICATION]);
+ if (enable)
+ priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
+ else
+ priv->pre_rx_handler = NULL;
+ return 0;
+}
+
/* The testmode gnl message handler that takes the gnl message from the
* user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
@@ -1022,6 +1042,12 @@ int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
result = iwl_testmode_indirect_mem(hw, tb);
break;
+ case IWL_TM_CMD_APP2DEV_NOTIFICATIONS:
+ IWL_DEBUG_INFO(priv, "testmode notifications cmd "
+ "to driver\n");
+ result = iwl_testmode_notifications(hw, tb);
+ break;
+
default:
IWL_ERR(priv, "Unknown testmode command\n");
result = -ENOSYS;