fixup! feat(split): Add full-duplex wired split support

Author: petejohanson

Diff for: app/src/split/wired/peripheral.c

@@ -139,22 +139,27 @@ static void serial_cb(const struct device *dev, void *user_data) {
 #else
 
 static void read_pending_rx(void) {
-    uint8_t *buf;
     struct ring_buf *ring_buf = &chosen_rx_buf;
-    uint32_t claim_len = ring_buf_put_claim(ring_buf, &buf, 1);
-
+    uint8_t *buf;
+    uint32_t read = 0;
+    uint32_t claim_len = ring_buf_put_claim(ring_buf, &buf, ring_buf_space_get(ring_buf));
     if (claim_len < 1) {
         LOG_WRN("No room available for reading in from the serial port");
         return;
     }
 
-    if (uart_poll_in(uart, buf) < 0) {
-        ring_buf_put_finish(ring_buf, 0);
-    } else {
-        ring_buf_put_finish(ring_buf, 1);
-        if (ring_buf_size_get(ring_buf) >= sizeof(struct command_envelope)) {
-            k_work_submit(&publish_commands);
+    while (read < claim_len) {
+        if (uart_poll_in(uart, buf + read) < 0) {
+            break;
         }
+
+        read++;
+    }
+
+    ring_buf_put_finish(ring_buf, read);
+
+    if (ring_buf_size_get(ring_buf) >= sizeof(struct command_envelope)) {
+        k_work_submit(&publish_commands);
     }
 }