Merge branch 'feat/calibrate_bus_latency' into 'master'

feat(openthread/br): calibrate bus latency

Closes TZ-1455

See merge request espressif/esp-idf!38529

components/openthread/Kconfig

@@ -400,6 +400,12 @@ menu "OpenThread"
                 help
                     The device's XTAL accuracy, in ppm.
 
+            config OPENTHREAD_BUS_LATENCY
+                int "The bus latency between host and radio chip"
+                default 4000
+                help
+                    The device's bus latency, in us.
+
             config OPENTHREAD_MLE_MAX_CHILDREN
                 int "The size of max MLE children entries"
                 default 10

components/openthread/private_include/esp_openthread_radio.h

@@ -44,6 +44,14 @@ void esp_openthread_radio_deinit(void);
  */
 void esp_openthread_radio_update(esp_openthread_mainloop_context_t *mainloop);
 
+/**
+ * @brief This function handles netif change for radio spinel.
+ *
+ * @param[in]    state    The updated netif state.
+ *
+ */
+void esp_openthread_handle_netif_state_change(bool state);
+
 /**
  * @brief This function performs the OpenThread radio process.
  *

components/openthread/src/port/esp_openthread_radio_spinel.cpp

@@ -209,6 +209,11 @@ void esp_openthread_radio_update(esp_openthread_mainloop_context_t *mainloop)
     s_spinel_interface.GetSpinelInterface().UpdateFdSet((void *)mainloop);
 }
 
+void esp_openthread_handle_netif_state_change(bool state)
+{
+    s_radio.SetTimeSyncState(state);
+}
+
 void otPlatRadioGetIeeeEui64(otInstance *instance, uint8_t *ieee_eui64)
 {
     SuccessOrDie(s_radio.GetIeeeEui64(ieee_eui64));
@@ -523,3 +528,27 @@ uint32_t otPlatRadioGetSupportedChannelMask(otInstance *aInstance)
     // Refer to `GetRadioChannelMask(bool aPreferred)`: FALSE to get supported channel mask
     return s_radio.GetRadioChannelMask(false);
 }
+
+uint32_t otPlatRadioGetBusSpeed(otInstance *aInstance)
+{
+    OT_UNUSED_VARIABLE(aInstance);
+
+#if CONFIG_OPENTHREAD_RADIO_SPINEL_UART
+    return s_esp_openthread_radio_config->radio_uart_config.uart_config.baud_rate;
+#elif CONFIG_OPENTHREAD_RADIO_SPINEL_SPI
+    return s_esp_openthread_radio_config->radio_spi_config.spi_device.clock_speed_hz;
+#else
+    return 0;
+#endif
+}
+
+uint32_t otPlatRadioGetBusLatency(otInstance *aInstance)
+{
+    OT_UNUSED_VARIABLE(aInstance);
+
+#if CONFIG_OPENTHREAD_RADIO_SPINEL_UART || CONFIG_OPENTHREAD_RADIO_SPINEL_SPI
+    return CONFIG_OPENTHREAD_BUS_LATENCY;
+#else
+    return 0;
+#endif
+}

components/openthread/src/port/esp_openthread_state.c

@@ -21,7 +21,7 @@
 
 static void handle_ot_netif_state_change(otInstance* instance)
 {
-    if (otLinkIsEnabled(instance)) {
+    if (otIp6IsEnabled(instance)) {
         ESP_LOGI(TAG, "netif up");
         if (esp_event_post(OPENTHREAD_EVENT, OPENTHREAD_EVENT_IF_UP, NULL, 0, 0) != ESP_OK) {
             ESP_LOGE(TAG, "Failed to post OpenThread if up event");
@@ -32,6 +32,10 @@ static void handle_ot_netif_state_change(otInstance* instance)
             ESP_LOGE(TAG, "Failed to post OpenThread if down event");
         }
     }
+
+#if (CONFIG_OPENTHREAD_RADIO_SPINEL_UART || CONFIG_OPENTHREAD_RADIO_SPINEL_SPI)
+    esp_openthread_handle_netif_state_change(otIp6IsEnabled(instance));
+#endif
 }
 
 static void handle_ot_netdata_change(void)