594-rssi-read-at-debug.patch

--- a/drivers/net/wireless/ath/ath9k/debug.c	2012-11-22 20:08:21.000000000 +0800
+++ b/drivers/net/wireless/ath/ath9k/debug.c	2012-11-22 20:05:56.000000000 +0800
@@ -1967,6 +1967,29 @@
 	.llseek = default_llseek,
 };
 
+/**
+ * @author zs, read rssi by second
+ */
+static ssize_t read_file_realtime_info(struct file *file, char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	char buf[64];
+	unsigned int len = 0;
+
+	len = snprintf(buf, sizeof(buf), "%d\t%d\t%d\t%d\n", sc->debug.rtv.seqno, 
+			sc->debug.rtv.rssi, sc->debug.rtv.noise, sc->debug.rtv.rate_idx);	
+	if(len > sizeof(buf))
+		len = sizeof(buf);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_realtime_info = {
+	.read = read_file_realtime_info,
+	.open = ath9k_debugfs_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 int ath9k_init_debug(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
@@ -2044,6 +2067,8 @@
				&fops_inject_settings);
    debugfs_create_file("pkt_record", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc,
				&fops_pkt_record);
+	debugfs_create_file("realtime_var", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc,
+				&fops_realtime_info);
 
 	INIT_LIST_HEAD(&sc->debug.recv_tp_list);
 	sc->debug.setting = kmalloc(sizeof(struct inject_settings), GFP_KERNEL);
--- a/drivers/net/wireless/ath/ath9k/debug.h	2012-11-22 20:08:21.000000000 +0800
+++ b/drivers/net/wireless/ath/ath9k/debug.h	2012-11-22 20:04:57.000000000 +0800
@@ -248,6 +248,13 @@
 	u32 pkt_counter;
 };
 
+struct realtime_var{
+	u16 seqno;
+	int8_t rssi;
+	s8 noise;
+	int rate_idx;
+};
+
 struct ath9k_debug {
 	struct dentry *debugfs_phy;
 	u32 regidx;
@@ -260,6 +267,7 @@
 
 	struct inject_settings *setting;
 	struct list_head recv_tp_list;
+	struct realtime_var rtv;
 };
 
 int ath9k_init_debug(struct ath_hw *ah);
--- a/drivers/net/wireless/ath/ath9k/recv.c	2012-11-22 20:08:21.000000000 +0800
+++ b/drivers/net/wireless/ath/ath9k/recv.c	2012-11-22 20:08:17.000000000 +0800
@@ -1877,6 +1877,13 @@
 		if (retval)
 			goto requeue_drop_frag;
 
+		if(!rs.rs_moreaggr && rs.rs_rssi != ATH9K_RSSI_BAD && ieee80211_is_data(hdr->frame_control)){
+			sc->debug.rtv.rssi = rs.rs_rssi;
+			sc->debug.rtv.seqno = (le16_to_cpu(hdr->seq_ctrl) >> 4);
+			sc->debug.rtv.noise = ah->noise;
+			sc->debug.rtv.rate_idx = rxs->rate_idx;
+		}
+
 		/* Ensure we always have an skb to requeue once we are done
 		 * processing the current buffer's skb */
 		requeue_skb = ath_rxbuf_alloc(common, common->rx_bufsize, GFP_ATOMIC);