serialhdl: Calculate baudadjust from MCU's baud instead of host baud

Store the baud rate the MCU is configured for in the "identify" data
and use that rate when calculating the baudadjust parameter.

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

1 files changed, 9 insertions, 2 deletions

diff --git a/klippy/serialqueue.c b/klippy/serialqueue.c
index 60ceeb4b..b3451ad6 100644
--- a/klippy/serialqueue.c
+++ b/klippy/serialqueue.c
@@ -770,11 +770,10 @@ background_thread(void *data)
 
 // Create a new 'struct serialqueue' object
 struct serialqueue *
-serialqueue_alloc(int serial_fd, double baud_adjust, int write_only)
+serialqueue_alloc(int serial_fd, int write_only)
 {
     struct serialqueue *sq = malloc(sizeof(*sq));
     memset(sq, 0, sizeof(*sq));
-    sq->baud_adjust = baud_adjust;
 
     // Reactor setup
     sq->serial_fd = serial_fd;
@@ -961,6 +960,14 @@ exit:
     pthread_mutex_unlock(&sq->lock);
 }
 
+void
+serialqueue_set_baud_adjust(struct serialqueue *sq, double baud_adjust)
+{
+    pthread_mutex_lock(&sq->lock);
+    sq->baud_adjust = baud_adjust;
+    pthread_mutex_unlock(&sq->lock);
+}
+
 // Set the estimated clock rate of the mcu on the other end of the
 // serial port
 void