serialqueue: Support notification of when a command is processed

Add ability for the host code to get a notification when the ack for a
command sent to the micro-controller is received.  This is in
preparation for improved detection of message loss between mcu and
host.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/klippy/chelper/serialqueue.h b/klippy/chelper/serialqueue.h
index 807e9883..071923e5 100644
--- a/klippy/chelper/serialqueue.h
+++ b/klippy/chelper/serialqueue.h
@@ -32,6 +32,7 @@ struct queue_message {
             double sent_time, receive_time;
         };
     };
+    uint64_t notify_id;
     struct list_node node;
 };
 
@@ -42,6 +43,7 @@ struct pull_queue_message {
     uint8_t msg[MESSAGE_MAX];
     int len;
     double sent_time, receive_time;
+    uint64_t notify_id;
 };
 
 struct serialqueue;
@@ -53,8 +55,8 @@ void serialqueue_free_commandqueue(struct command_queue *cq);
 void serialqueue_send_batch(struct serialqueue *sq, struct command_queue *cq
                             , struct list_head *msgs);
 void serialqueue_send(struct serialqueue *sq, struct command_queue *cq
-                      , uint8_t *msg, int len
-                      , uint64_t min_clock, uint64_t req_clock);
+                      , uint8_t *msg, int len, uint64_t min_clock
+                      , uint64_t req_clock, uint64_t notify_id);
 void serialqueue_pull(struct serialqueue *sq, struct pull_queue_message *pqm);
 void serialqueue_set_baud_adjust(struct serialqueue *sq, double baud_adjust);
 void serialqueue_set_clock_est(struct serialqueue *sq, double est_freq