commit cccf02fadb2dd4dceb22f2d58ed5840b0ef1860e
author Chris Manton <cmanton@google.com> Tue Oct 21 13:55:24 2014 -0700
committer Andre Eisenbach <eisenbach@google.com> Mon Mar 16 16:51:38 2015 -0700
tree 607c025964c2d0c2f096017005689defd8e845e2
parent eacc69d09256ecaa7c01ea066cd70b0049edc23b

Instrument data flow a bit

Use counters to grab some select data metrics.

stack/l2cap/l2c_main.c

diff --git a/stack/l2cap/l2c_main.c b/stack/l2cap/l2c_main.c
index caef05f..e59b760 100755
--- a/stack/l2cap/l2c_main.c
+++ b/stack/l2cap/l2c_main.c
@@ -28,6 +28,7 @@
 #include <stdio.h>
 
 #include "controller.h"
+#include "counter.h"
 #include "gki.h"
 #include "hcimsgs.h"
 #include "l2cdefs.h"
@@ -99,6 +100,9 @@
 
     if (p_buf->len <= controller_get_interface()->get_acl_packet_size_classic())
     {
+        counter_add("l2cap.ch2.tx.bytes", p_buf->len);
+        counter_add("l2cap.ch2.tx.pkts", 1);
+
         bte_main_hci_send(p_buf, BT_EVT_TO_LM_HCI_ACL);
     }
 }
@@ -218,11 +222,15 @@
     /* Send the data through the channel state machine */
     if (rcv_cid == L2CAP_SIGNALLING_CID)
     {
+        counter_add("l2cap.sig.rx.bytes", l2cap_len);
+        counter_add("l2cap.sig.rx.pkts", 1);
         process_l2cap_cmd (p_lcb, p, l2cap_len);
         GKI_freebuf (p_msg);
     }
     else if (rcv_cid == L2CAP_CONNECTIONLESS_CID)
     {
+        counter_add("l2cap.ch2.rx.bytes", l2cap_len);
+        counter_add("l2cap.ch2.rx.pkts", 1);
         /* process_connectionless_data (p_lcb); */
         STREAM_TO_UINT16 (psm, p);
         L2CAP_TRACE_DEBUG( "GOT CONNECTIONLESS DATA PSM:%d", psm ) ;
@@ -240,6 +248,8 @@
 #if (BLE_INCLUDED == TRUE)
     else if (rcv_cid == L2CAP_BLE_SIGNALLING_CID)
     {
+        counter_add("l2cap.ble.rx.bytes", l2cap_len);
+        counter_add("l2cap.ble.rx.pkts", 1);
         l2cble_process_sig_cmd (p_lcb, p, l2cap_len);
         GKI_freebuf (p_msg);
     }
@@ -248,6 +258,8 @@
     else if ((rcv_cid >= L2CAP_FIRST_FIXED_CHNL) && (rcv_cid <= L2CAP_LAST_FIXED_CHNL) &&
              (l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb != NULL) )
     {
+        counter_add("l2cap.fix.rx.bytes", l2cap_len);
+        counter_add("l2cap.fix.rx.pkts", 1);
         /* If no CCB for this channel, allocate one */
         if (p_lcb &&
             /* discard fixed channel data when link is disconnecting */
@@ -272,6 +284,8 @@
 
     else
     {
+        counter_add("l2cap.dyn.rx.bytes", l2cap_len);
+        counter_add("l2cap.dyn.rx.pkts", 1);
         if (p_ccb == NULL)
             GKI_freebuf (p_msg);
         else
@@ -972,6 +986,9 @@
         return (L2CAP_DW_FAILED);
     }
 
+    counter_add("l2cap.dyn.tx.bytes", p_data->len);
+    counter_add("l2cap.dyn.tx.pkts", 1);
+
     l2c_csm_execute (p_ccb, L2CEVT_L2CA_DATA_WRITE, p_data);
 
     if (p_ccb->cong_sent)