feat(ethernet/ptp): support for responding to peer delay req

respond to peer delay req, and minor cleanup for consistency/readability; tested with Motu AVB switch and receiving syncs from switch which indicates that AVB is happy with peer delay
espressif · Dec 9, 2024 · b348d98 · b348d98
1 parent 2c1ed44
commit b348d98
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Showing 4 changed files with 227 additions and 49 deletions.
diff --git a/components/hal/emac_hal.c b/components/hal/emac_hal.c
@@ -258,6 +258,8 @@ esp_err_t emac_hal_ptp_start(emac_hal_context_t *hal, const emac_hal_ptp_config_
 {
     uint8_t base_increment;
 
+    emac_ll_ts_ptp_snap_type_sel(hal->ptp_regs, 1);
+
     // Enable time stamping frame filtering (applicable to receive)
     emac_ll_ts_ptp_ether_enable(hal->ptp_regs, true);
     // Process frames with v2 format

diff --git a/examples/ethernet/ptp/components/ptpd/include/ptpd.h b/examples/ethernet/ptp/components/ptpd/include/ptpd.h
@@ -89,9 +89,10 @@ struct ptpd_status_s
 
   long drift_ppb;
 
-  /* Averaged path delay */
+  /* Averaged delay */
 
   long path_delay_ns;
+  long peer_delay_ns;
 
   /* Timestamps of latest received packets (CLOCK_MONOTONIC) */