add pre-init/post-deinit callback

Signed-off-by: HiFiPhile <[email protected]>

Author: HiFiPhile

src/device/usbd.c

@@ -561,6 +561,9 @@ bool tud_rhport_init(uint8_t rhport, const tusb_rhport_init_t* rh_init) {
 
   _usbd_rhport = rhport;
 
+  // MCU specific pre-init
+  tusb_pre_init_cb(rhport, TUSB_ROLE_DEVICE);
+
   // Init device controller driver
   TU_ASSERT(dcd_init(rhport, rh_init));
   dcd_int_enable(rhport);
@@ -580,6 +583,9 @@ bool tud_deinit(uint8_t rhport) {
   dcd_disconnect(rhport);
   TU_ASSERT(dcd_deinit(rhport));
 
+  // MCU specific post-deinit
+  tusb_post_deinit_cb(rhport, TUSB_ROLE_DEVICE);
+
   // Deinit class drivers
   for (uint8_t i = 0; i < TOTAL_DRIVER_COUNT; i++) {
     usbd_class_driver_t const* driver = get_driver(i);

src/host/usbh.c

@@ -522,6 +522,9 @@ bool tuh_rhport_init(uint8_t rhport, const tusb_rhport_init_t* rh_init) {
     }
   }
 
+  // MCU specific pre-init
+  tusb_pre_init_cb(rhport, TUSB_ROLE_HOST);
+
   // Init host controller
   _usbh_data.controller_id = rhport;
   TU_ASSERT(hcd_init(rhport, rh_init));
@@ -540,6 +543,9 @@ bool tuh_deinit(uint8_t rhport) {
   TU_ASSERT(hcd_deinit(rhport));
   _usbh_data.controller_id = TUSB_INDEX_INVALID_8;
 
+  // MCU specific post-deinit
+  tusb_post_deinit_cb(rhport, TUSB_ROLE_HOST);
+
   // "unplug" all devices on this rhport (hub_addr = 0, hub_port = 0)
   process_removed_device(rhport, 0, 0);
 

src/tusb.c

@@ -63,6 +63,16 @@ TU_ATTR_WEAK void* tusb_app_phys_to_virt(void *phys_addr) {
   return phys_addr;
 }
 
+TU_ATTR_WEAK void tusb_pre_init_cb(uint8_t rhport, tusb_role_t role) {
+  (void) rhport;
+  (void) role;
+}
+
+TU_ATTR_WEAK void tusb_post_deinit_cb(uint8_t rhport, tusb_role_t role) {
+  (void) rhport;
+  (void) role;
+}
+
 //--------------------------------------------------------------------+
 // Public API
 //--------------------------------------------------------------------+

src/tusb.h

@@ -165,6 +165,12 @@ void tusb_int_handler(uint8_t rhport, bool in_isr);
 // Deinit usb stack on roothub port
 bool tusb_deinit(uint8_t rhport);
 
+// Invoked before tusb_init() to allow MCU specific pre-initialization
+void tusb_pre_init_cb(uint8_t rhport, tusb_role_t role);
+
+// Invoked after tusb_deinit() to allow MCU specific post-de-initialization
+void tusb_post_deinit_cb(uint8_t rhport, tusb_role_t role);
+
 #else
 
 #define tusb_init(...)  (false)