Merge pull request #3358 from hathach/dwc2_cfg

Add dcd_configure for dwc2 FIFO config

3 files changed, 35 insertions, 3 deletions

diff --git a/src/device/dcd.h b/src/device/dcd.h
index 8a074ab47..850c37bc2 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -107,6 +107,9 @@ bool dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size);
 // Controller API
 //--------------------------------------------------------------------+
 
+// optional dcd configuration, called by tud_configure()
+bool dcd_configure(uint8_t rhport, uint32_t cfg_id, const void* cfg_param);
+
 // Initialize controller to device mode
 bool dcd_init(uint8_t rhport, const tusb_rhport_init_t* rh_init);
 
diff --git a/src/device/usbd.c b/src/device/usbd.c
index 6c2ff2f62..e337a5000 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -425,6 +425,11 @@ TU_ATTR_WEAK bool dcd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t
   return false;
 }
 
+TU_ATTR_WEAK bool dcd_configure(uint8_t rhport, uint32_t cfg_id, const void* cfg_param) {
+  (void) rhport; (void) cfg_id; (void) cfg_param;
+  return false;
+}
+
 //--------------------------------------------------------------------+
 // Debug
 //--------------------------------------------------------------------+
@@ -494,13 +499,14 @@ void tud_sof_cb_enable(bool en) {
   usbd_sof_enable(_usbd_rhport, SOF_CONSUMER_USER, en);
 }
 
-//--------------------------------------------------------------------+
-// USBD Task
-//--------------------------------------------------------------------+
 bool tud_inited(void) {
   return _usbd_rhport != RHPORT_INVALID;
 }
 
+bool tud_configure(uint8_t rhport, uint32_t cfg_id, const void* cfg_param) {
+  return dcd_configure(rhport, cfg_id, cfg_param);
+}
+
 bool tud_rhport_init(uint8_t rhport, const tusb_rhport_init_t* rh_init) {
   if (tud_inited()) {
     return true; // skip if already initialized
@@ -624,6 +630,9 @@ bool tud_task_event_ready(void) {
   return !osal_queue_empty(_usbd_q);
 }
 
+//--------------------------------------------------------------------+
+// USBD Task
+//--------------------------------------------------------------------+
 /* USB Device Driver task
  * This top level thread manages all device controller event and delegates events to class-specific drivers.
  * This should be called periodically within the mainloop or rtos thread.
diff --git a/src/device/usbd.h b/src/device/usbd.h
index c446638c3..efde9377f 100644
--- a/src/device/usbd.h
+++ b/src/device/usbd.h
@@ -33,10 +33,30 @@
 extern "C" {
 #endif
 
+// ConfigID for tud_configure()
+enum {
+  TUD_CFGID_INVALID = 0,
+  TUD_CFGID_DWC2 = 100,
+};
+
+typedef struct {
+  uint16_t bm_double_buffered; // bitmap of IN endpoints to be double buffered, only effective for bulk endpoints
+} tud_configure_dwc2_t;
+
+typedef union {
+  tud_configure_dwc2_t dwc2;
+} tud_configure_param_t;
+
 //--------------------------------------------------------------------+
 // Application API
 //--------------------------------------------------------------------+
 
+// Configure device stack behavior with dynamic or port-specific parameters.
+// Should be called before initialization of the device stack
+// - cfg_id   : configure ID from TUD_CFGID_* enum values
+// - cfg_param: configure data, structure depends on the ID
+bool tud_configure(uint8_t rhport, uint32_t cfg_id, const void* cfg_param);
+
 // New API to replace tud_init() to init device stack on specific roothub port
 bool tud_rhport_init(uint8_t rhport, const tusb_rhport_init_t* rh_init);