add callback for hcd when it cleaned up all cache data for a device (previously mark as removing).

3 files changed, 10 insertions, 3 deletions

diff --git a/tinyusb/host/ehci/ehci.c b/tinyusb/host/ehci/ehci.c
index 92c439ff8..e94793254 100644
--- a/tinyusb/host/ehci/ehci.c
+++ b/tinyusb/host/ehci/ehci.c
@@ -183,6 +183,9 @@ void async_advance_isr(ehci_qhd_t * const async_head)
       p_control_qhd->is_removing     = 0;
       p_control_qhd->used            = 0;
       p_control_qhd->p_qtd_list_head = p_control_qhd->p_qtd_list_tail = NULL;
+
+      // TODO abstract: Host Controller has cleaned up its data for this device, notify usbh
+      usbh_device_hcd_data_cleaned_up_cb(relative_dev_addr+1);
     }
 
     // check if any other endpoints in pool is removing
diff --git a/tinyusb/host/usbh.c b/tinyusb/host/usbh.c
index a70ba28bd..f871d8979 100644
--- a/tinyusb/host/usbh.c
+++ b/tinyusb/host/usbh.c
@@ -225,11 +225,15 @@ void usbh_device_unplugged_isr(uint8_t hostid)
 
   usbh_pipe_control_close(dev_addr);
 
-  // set to REMOVING to prevent allocate to other new device
-  // need to set to UNPLUGGED by HCD after freeing all resources
+  // set to REMOVING to end wait for HCD to clean up its cached data for this device
   usbh_device_info_pool[dev_addr].status = TUSB_DEVICE_STATUS_REMOVING;
 }
 
+// HCD cleaned up cached data for this device
+void usbh_device_hcd_data_cleaned_up_cb(uint8_t dev_addr)
+{
+  usbh_device_info_pool[dev_addr].status = TUSB_DEVICE_STATUS_UNPLUG;
+}
 
 //--------------------------------------------------------------------+
 // ENUMERATION TASK
diff --git a/tinyusb/host/usbh_hcd.h b/tinyusb/host/usbh_hcd.h
index bbcad3611..47f1b32d4 100644
--- a/tinyusb/host/usbh_hcd.h
+++ b/tinyusb/host/usbh_hcd.h
@@ -103,7 +103,7 @@ extern usbh_device_info_t usbh_device_info_pool[TUSB_CFG_HOST_DEVICE_MAX+1]; //
 void usbh_isr(pipe_handle_t pipe_hdl, uint8_t class_code);
 void usbh_device_plugged_isr(uint8_t hostid, tusb_speed_t speed);
 void usbh_device_unplugged_isr(uint8_t hostid);
-
+void usbh_device_hcd_data_cleaned_up_cb(uint8_t dev_addr); // hcd called this function when it cleaned all its cached data for this device
 
 #ifdef __cplusplus
  }