add tud_hid_descriptor_report_cb()

- remove tud_desc_set.hid_report
- remove tud_desc_set_t

examples/device/cdc_msc_hid/src/usb_descriptors.c

@@ -79,25 +79,34 @@ uint8_t const desc_hid_report[] =
   TUD_HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(REPORT_ID_KEYBOARD), ),
   TUD_HID_REPORT_DESC_MOUSE   ( HID_REPORT_ID(REPORT_ID_MOUSE), )
 };
+
+// Invoked when received GET HID REPORT DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_hid_descriptor_report_cb(void)
+{
+  return desc_hid_report;
+}
+
 #endif
 
 //------------- Configuration Descriptor -------------//
 enum
 {
-  #if CFG_TUD_CDC
-    ITF_NUM_CDC = 0,
-    ITF_NUM_CDC_DATA,
-  #endif
+#if CFG_TUD_CDC
+  ITF_NUM_CDC = 0,
+  ITF_NUM_CDC_DATA,
+#endif
 
-  #if CFG_TUD_MSC
-    ITF_NUM_MSC,
-  #endif
+#if CFG_TUD_MSC
+  ITF_NUM_MSC,
+#endif
 
-  #if CFG_TUD_HID
-    ITF_NUM_HID,
-  #endif
+#if CFG_TUD_HID
+  ITF_NUM_HID,
+#endif
 
-    ITF_NUM_TOTAL
+  ITF_NUM_TOTAL
 };
 
 enum
@@ -136,17 +145,20 @@ uint8_t const desc_configuration[] =
 #endif
 };
 
-
-// tud_desc_set is required by tinyusb stack
-tud_desc_set_t tud_desc_set =
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void)
 {
-  .device     = &desc_device,
-  .config     = desc_configuration,
+  return (uint8_t const *) &desc_device;
+}
 
-#if CFG_TUD_HID
-  .hid_report = desc_hid_report,
-#endif
-};
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(void)
+{
+  return desc_configuration;
+}
 
 //------------- String Descriptors -------------//
 

examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c

@@ -79,25 +79,34 @@ uint8_t const desc_hid_report[] =
   TUD_HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(REPORT_ID_KEYBOARD), ),
   TUD_HID_REPORT_DESC_MOUSE   ( HID_REPORT_ID(REPORT_ID_MOUSE), )
 };
+
+// Invoked when received GET HID REPORT DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_hid_descriptor_report_cb(void)
+{
+  return desc_hid_report;
+}
+
 #endif
 
 //------------- Configuration Descriptor -------------//
 enum
 {
-  #if CFG_TUD_CDC
-    ITF_NUM_CDC = 0,
-    ITF_NUM_CDC_DATA,
-  #endif
+#if CFG_TUD_CDC
+  ITF_NUM_CDC = 0,
+  ITF_NUM_CDC_DATA,
+#endif
 
-  #if CFG_TUD_MSC
-    ITF_NUM_MSC,
-  #endif
+#if CFG_TUD_MSC
+  ITF_NUM_MSC,
+#endif
 
-  #if CFG_TUD_HID
-    ITF_NUM_HID,
-  #endif
+#if CFG_TUD_HID
+  ITF_NUM_HID,
+#endif
 
-    ITF_NUM_TOTAL
+  ITF_NUM_TOTAL
 };
 
 enum
@@ -136,16 +145,20 @@ uint8_t const desc_configuration[] =
 #endif
 };
 
-// tud_desc_set is required by tinyusb stack
-tud_desc_set_t tud_desc_set =
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void)
 {
-    .device     = &desc_device,
-    .config     = desc_configuration,
+  return (uint8_t const *) &desc_device;
+}
 
-#if CFG_TUD_HID
-    .hid_report = desc_hid_report,
-#endif
-};
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(void)
+{
+  return desc_configuration;
+}
 
 //------------- String Descriptors -------------//
 

examples/device/hid_generic_inout/src/usb_descriptors.c

@@ -89,16 +89,28 @@ uint8_t const desc_configuration[] =
 };
 
 
-// tud_desc_set is required by tinyusb stack
-tud_desc_set_t tud_desc_set =
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void)
 {
-    .device     = &desc_device,
-    .config     = desc_configuration,
+  return (uint8_t const *) &desc_device;
+}
 
-#if CFG_TUD_HID
-    .hid_report = desc_hid_report,
-#endif
-};
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(void)
+{
+  return desc_configuration;
+}
+
+// Invoked when received GET HID REPORT DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_hid_descriptor_report_cb(void)
+{
+  return desc_hid_report;
+}
 
 //------------- String Descriptors -------------//
 

examples/device/msc_dual_lun/src/usb_descriptors.c

@@ -82,17 +82,20 @@ uint8_t const desc_configuration[] =
   TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 0, EPNUM_MSC, 0x80 | EPNUM_MSC, 64), // highspeed 512
 };
 
-
-// tud_desc_set is required by tinyusb stack
-tud_desc_set_t tud_desc_set =
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void)
 {
-    .device     = &desc_device,
-    .config     = desc_configuration,
+  return (uint8_t const *) &desc_device;
+}
 
-#if CFG_TUD_HID
-    .hid_report = desc_hid_report,
-#endif
-};
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(void)
+{
+  return desc_configuration;
+}
 
 //------------- String Descriptors -------------//
 

src/class/hid/hid_device.c

@@ -201,7 +201,8 @@ bool hidd_control_request(uint8_t rhport, tusb_control_request_t const * p_reque
 
     if (p_request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_REPORT)
     {
-      usbd_control_xfer(rhport, p_request, (void*) tud_desc_set.hid_report, p_hid->reprot_desc_len);
+      uint8_t const * desc_report = tud_hid_descriptor_report_cb();
+      usbd_control_xfer(rhport, p_request, (void*) desc_report, p_hid->reprot_desc_len);
     }else
     {
       return false; // stall unsupported request

src/class/hid/hid_device.h

@@ -68,6 +68,11 @@ bool tud_hid_mouse_report(uint8_t report_id, uint8_t buttons, int8_t x, int8_t y
 // Callbacks (Weak is optional)
 //--------------------------------------------------------------------+
 
+// Invoked when received GET HID REPORT DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_hid_descriptor_report_cb(void);
+
 // Invoked when received GET_REPORT control request
 // Application must fill buffer report's content and return its length.
 // Return zero will cause the stack to STALL request

src/device/usbd.c

@@ -479,7 +479,7 @@ static bool process_control_request(uint8_t rhport, tusb_control_request_t const
 // This function parse configuration descriptor & open drivers accordingly
 static bool process_set_config(uint8_t rhport)
 {
-  tusb_desc_configuration_t const * desc_cfg = (tusb_desc_configuration_t const *) tud_desc_set.config;
+  tusb_desc_configuration_t const * desc_cfg = (tusb_desc_configuration_t const *) tud_descriptor_configuration_cb();
   TU_ASSERT(desc_cfg != NULL && desc_cfg->bDescriptorType == TUSB_DESC_CONFIGURATION);
 
   // Parse configuration descriptor
@@ -558,11 +558,14 @@ static bool process_get_descriptor(uint8_t rhport, tusb_control_request_t const
   switch(desc_type)
   {
     case TUSB_DESC_DEVICE:
-      return usbd_control_xfer(rhport, p_request, (void*) tud_desc_set.device, sizeof(tusb_desc_device_t));
+      return usbd_control_xfer(rhport, p_request, (void*) tud_descriptor_device_cb(), sizeof(tusb_desc_device_t));
     break;
 
     case TUSB_DESC_CONFIGURATION:
-      return usbd_control_xfer(rhport, p_request, (void*) tud_desc_set.config, ((tusb_desc_configuration_t const*) tud_desc_set.config)->wTotalLength);
+    {
+      tusb_desc_configuration_t const* desc_config = (tusb_desc_configuration_t const*) tud_descriptor_configuration_cb();
+      return usbd_control_xfer(rhport, p_request, (void*) desc_config, desc_config->wTotalLength);
+    }
     break;
 
     case TUSB_DESC_STRING:

src/device/usbd.h

@@ -37,17 +37,6 @@
 #include "common/tusb_common.h"
 #include "device/dcd.h"
 
-/// \brief Descriptor pointer collector to all the needed.
-typedef struct {
-  void const * device;        ///< pointer to device descriptor \ref tusb_desc_device_t
-  void const * config;        ///< pointer to the whole configuration descriptor, starting by \ref tusb_desc_configuration_t
-  uint8_t const*  hid_report;
-
-}tud_desc_set_t;
-
-// Descriptor collection set, must be defined by application
-extern tud_desc_set_t tud_desc_set;
-
 //--------------------------------------------------------------------+
 // Application API
 //--------------------------------------------------------------------+
@@ -74,9 +63,18 @@ bool tud_remote_wakeup(void);
 // Application Callbacks (WEAK is optional)
 //--------------------------------------------------------------------+
 
-// Invoked when received GET_STRING_DESC request
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void);
+
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(void);
+
+// Invoked when received GET STRING DESC request
 // max_char is CFG_TUD_ENDOINT0_SIZE/2 -1, typically max_char = 31 if Endpoint0 size is 64
-// Return number of characters. Note usb string is in 16-bits unicode format
+// Return number of characters. Note usb string is in UTF-16 format
 uint8_t tud_descriptor_string_cb(uint8_t index, uint16_t* desc, uint8_t max_char);
 
 // Invoked when device is mounted (configured)

src/device/usbd_control.c

@@ -93,8 +93,10 @@ bool usbd_control_xfer(uint8_t rhport, tusb_control_request_t const * request, v
   _control_state.total_len = tu_min16(len, request->wLength);
   _control_state.total_transferred = 0;
 
-  if ( (buffer != NULL) && len )
+  if ( len )
   {
+    TU_ASSERT(buffer);
+
     // Data stage
     TU_ASSERT( start_control_data_xact(rhport) );
   }else