refactor(hcd): Added getter for the port number

Author: roma-jam

host/usb/private_include/hcd.h

@@ -303,6 +303,15 @@ hcd_port_state_t hcd_port_get_state(hcd_port_handle_t port_hdl);
  */
 esp_err_t hcd_port_get_speed(hcd_port_handle_t port_hdl, usb_speed_t *speed);
 
+/**
+ * @brief Get the port number
+ *
+ * @param[in] port_hdl Port handle
+ *
+ * @return uint8_t Port number
+ */
+uint8_t hcd_port_get_number(hcd_port_handle_t port_hdl);
+
 /**
  * @brief Handle a ports event
  *

host/usb/src/hcd_dwc.c

@@ -256,6 +256,7 @@ struct port_obj {
         uint32_t val;
     } flags;
     bool initialized;
+    uint8_t port_num;
     // FIFO related
     usb_dwc_hal_fifo_config_t fifo_config;          // FIFO config to be applied at HAL level
     // Port callback and context
@@ -1418,6 +1419,7 @@ esp_err_t hcd_port_init(int port_number, const hcd_port_config_t *port_config, h
     HCD_CHECK_FROM_CRIT(port_obj->hal->channels.hdls != NULL, ESP_ERR_NO_MEM);
 
     port_obj->initialized = true;
+    port_obj->port_num = port_number;
     // Clear the frame list. We will set the frame list register and enable periodic scheduling after a successful reset
     memset(port_obj->frame_list, 0, FRAME_LIST_LEN * sizeof(uint32_t));
     // If FIFO config is zeroed -> calculate from bias
@@ -1518,6 +1520,12 @@ esp_err_t hcd_port_get_speed(hcd_port_handle_t port_hdl, usb_speed_t *speed)
     return ESP_OK;
 }
 
+uint8_t hcd_port_get_number(hcd_port_handle_t port_hdl)
+{
+    port_t *port = (port_t *)port_hdl;
+    return port->port_num;
+}
+
 hcd_port_event_t hcd_port_handle_event(hcd_port_handle_t port_hdl)
 {
     port_t *port = (port_t *)port_hdl;