Merge pull request #294 from hathach/fix-rndis-zlp

Fix zlp for nrf52840

hw/bsp/feather_nrf52840_express/board.mk

@@ -25,7 +25,8 @@ LDFLAGS += -L$(TOP)/hw/mcu/nordic/nrfx/mdk
 
 SRC_C += \
   hw/mcu/nordic/nrfx/drivers/src/nrfx_power.c \
-  hw/mcu/nordic/nrfx/mdk/system_nrf52840.c \
+  hw/mcu/nordic/nrfx/drivers/src/nrfx_uarte.c \
+  hw/mcu/nordic/nrfx/mdk/system_nrf52840.c
 
 INC += \
   $(TOP)/hw/mcu/nordic/cmsis/Include \

hw/bsp/feather_nrf52840_express/feather_nrf52840_express.c

@@ -29,6 +29,7 @@
 #include "nrfx.h"
 #include "nrfx/hal/nrf_gpio.h"
 #include "nrfx/drivers/include/nrfx_power.h"
+#include "nrfx/drivers/include/nrfx_uarte.h"
 
 #ifdef SOFTDEVICE_PRESENT
 #include "nrf_sdm.h"
@@ -45,12 +46,20 @@
 
 #define BUTTON_PIN      _PINNUM(1, 02)
 
+#define UART_RX_PIN     24
+#define UART_TX_PIN     25
+
+static nrfx_uarte_t _uart_id = NRFX_UARTE_INSTANCE(0);
+
 // tinyusb function that handles power event (detected, ready, removed)
 // We must call it within SD's SOC event handler, or set it as power event handler if SD is not enabled.
 extern void tusb_hal_nrf_power_event(uint32_t event);
 
 void board_init(void)
 {
+  // stop LF clock just in case we jump from application without reset
+  NRF_CLOCK->TASKS_LFCLKSTOP = 1UL;
+
   // Config clock source: XTAL or RC in sdk_config.h
   NRF_CLOCK->LFCLKSRC = (uint32_t)((CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos) & CLOCK_LFCLKSRC_SRC_Msk);
   NRF_CLOCK->TASKS_LFCLKSTART = 1UL;
@@ -67,6 +76,24 @@ void board_init(void)
   SysTick_Config(SystemCoreClock/1000);
 #endif
 
+  // UART
+  nrfx_uarte_config_t uart_cfg =
+  {
+    .pseltxd   = UART_TX_PIN,
+    .pselrxd   = UART_RX_PIN,
+    .pselcts   = NRF_UARTE_PSEL_DISCONNECTED,
+    .pselrts   = NRF_UARTE_PSEL_DISCONNECTED,
+    .p_context = NULL,
+    .baudrate  = NRF_UARTE_BAUDRATE_115200, // CFG_BOARD_UART_BAUDRATE
+    .interrupt_priority = 7,
+    .hal_cfg = {
+      .hwfc      = NRF_UARTE_HWFC_DISABLED,
+      .parity    = NRF_UARTE_PARITY_EXCLUDED,
+    }
+  };
+
+  nrfx_uarte_init(&_uart_id, &uart_cfg, NULL); //uart_handler);
+
 #if TUSB_OPT_DEVICE_ENABLED
   // Priorities 0, 1, 4 (nRF52) are reserved for SoftDevice
   // 2 is highest for application
@@ -127,12 +154,12 @@ int board_uart_read(uint8_t* buf, int len)
 {
   (void) buf; (void) len;
   return 0;
+//  return NRFX_SUCCESS == nrfx_uart_rx(&_uart_id, buf, (size_t) len) ? len : 0;
 }
 
 int board_uart_write(void const * buf, int len)
 {
-  (void) buf; (void) len;
-  return 0;
+  return (NRFX_SUCCESS == nrfx_uarte_tx(&_uart_id, (uint8_t const*) buf, (size_t) len)) ? len : 0;
 }
 
 #if CFG_TUSB_OS == OPT_OS_NONE

hw/bsp/pca10056/board.mk

@@ -26,7 +26,7 @@ LDFLAGS += -L$(TOP)/hw/mcu/nordic/nrfx/mdk
 SRC_C += \
 	hw/mcu/nordic/nrfx/drivers/src/nrfx_power.c \
 	hw/mcu/nordic/nrfx/drivers/src/nrfx_uarte.c \
-	hw/mcu/nordic/nrfx/mdk/system_nrf52840.c \
+	hw/mcu/nordic/nrfx/mdk/system_nrf52840.c
 
 INC += \
 	$(TOP)/hw/mcu/nordic/cmsis/Include \

src/device/usbd.c

@@ -264,6 +264,9 @@ static char const* const _usbd_driver_str[USBD_CLASS_DRIVER_COUNT] =
   #if CFG_TUD_USBTMC
     "USBTMC"
   #endif
+  #if CFG_TUD_NET
+    "NET"
+  #endif
 };
 
 static char const* const _tusb_std_request_str[] =

src/device/usbd_control.c

@@ -96,6 +96,8 @@ static bool _data_stage_xact(uint8_t rhport)
     if ( xact_len ) memcpy(_usbd_ctrl_buf, _ctrl_xfer.buffer, xact_len);
   }
 
+  TU_LOG2("  XACT Control: 0x%02X, Bytes: %d\n", ep_addr, xact_len);
+
   return dcd_edpt_xfer(rhport, ep_addr, xact_len ? _usbd_ctrl_buf : NULL, xact_len);
 }
 
@@ -110,10 +112,10 @@ bool tud_control_xfer(uint8_t rhport, tusb_control_request_t const * request, vo
   {
     TU_ASSERT(buffer);
 
+    TU_LOG2("  XFER Endpoint: 0x%02X, Bytes: %d\n", request->bmRequestType_bit.direction ? EDPT_CTRL_IN : EDPT_CTRL_OUT, _ctrl_xfer.data_len);
+
     // Data stage
     TU_ASSERT( _data_stage_xact(rhport) );
-
-    TU_LOG2("  XFER Endpoint: 0x%02X, Bytes: %d\n", request->bmRequestType_bit.direction ? EDPT_CTRL_IN : EDPT_CTRL_OUT, _ctrl_xfer.data_len);
   }else
   {
     // Status stage

src/portable/nordic/nrf5x/dcd_nrf5x.c

@@ -276,8 +276,10 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
   xfer->total_len  = total_bytes;
   xfer->actual_len = 0;
 
-  // Control endpoint with zero-length packet --> status stage
-  if ( epnum == 0 && total_bytes == 0 )
+  // Control endpoint with zero-length packet and opposite direction to 1st request byte --> status stage
+  bool const control_status = (epnum == 0 && total_bytes == 0 && dir != tu_edpt_dir(NRF_USBD->BMREQUESTTYPE));
+
+  if ( control_status )
   {
     // Status Phase also require Easy DMA has to be free as well !!!!
     edpt_dma_start(&NRF_USBD->TASKS_EP0STATUS);

src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c

@@ -323,29 +323,27 @@ void dcd_remote_wakeup(uint8_t rhport)
   remoteWakeCountdown = 4u; // required to be 1 to 15 ms, ESOF should trigger every 1ms.
 }
 
-// I'm getting a weird warning about missing braces here that I don't
-// know how to fix.
-#if defined(__GNUC__) && (__GNUC__ >= 7)
-#  pragma GCC diagnostic push
-#  pragma GCC diagnostic ignored "-Wmissing-braces"
-#endif
 static const tusb_desc_endpoint_t ep0OUT_desc =
 {
-    .wMaxPacketSize = CFG_TUD_ENDPOINT0_SIZE,
-    .bDescriptorType = TUSB_XFER_CONTROL,
-    .bEndpointAddress = 0x00
+  .bLength          = sizeof(tusb_desc_endpoint_t),
+  .bDescriptorType  = TUSB_DESC_ENDPOINT,
+
+  .bEndpointAddress = 0x00,
+  .bmAttributes     = { .xfer = TUSB_XFER_CONTROL },
+  .wMaxPacketSize   = { .size = CFG_TUD_ENDPOINT0_SIZE },
+  .bInterval        = 0
 };
 
 static const tusb_desc_endpoint_t ep0IN_desc =
 {
-    .wMaxPacketSize = CFG_TUD_ENDPOINT0_SIZE,
-    .bDescriptorType = TUSB_XFER_CONTROL,
-    .bEndpointAddress = 0x80
-};
+  .bLength          = sizeof(tusb_desc_endpoint_t),
+  .bDescriptorType  = TUSB_DESC_ENDPOINT,
 
-#if defined(__GNUC__) && (__GNUC__ >= 7)
-#pragma GCC diagnostic pop
-#endif
+  .bEndpointAddress = 0x80,
+  .bmAttributes     = { .xfer = TUSB_XFER_CONTROL },
+  .wMaxPacketSize   = { .size = CFG_TUD_ENDPOINT0_SIZE },
+  .bInterval        = 0
+};
 
 static void dcd_handle_bus_reset(void)
 {