rename common func to avoid conflict
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		@@ -178,7 +178,7 @@ static void edpt_dma_end(void)
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static void xact_control_start(void)
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{
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  // Each transaction is up to 64 bytes
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  uint8_t const xact_len = min16_of(_dcd.control.total_len-_dcd.control.actual_len, MAX_PACKET_SIZE);
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  uint8_t const xact_len = tu_min16(_dcd.control.total_len-_dcd.control.actual_len, MAX_PACKET_SIZE);
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  if ( _dcd.control.dir == TUSB_DIR_OUT )
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  {
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@@ -274,7 +274,7 @@ static void xact_in_prepare(uint8_t epnum)
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  nom_xfer_t* xfer = get_td(epnum, TUSB_DIR_IN);
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  // Each transaction is up to Max Packet Size
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  uint8_t const xact_len = min16_of(xfer->total_len - xfer->actual_len, xfer->mps);
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  uint8_t const xact_len = tu_min16(xfer->total_len - xfer->actual_len, xfer->mps);
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  NRF_USBD->EPIN[epnum].PTR    = (uint32_t) xfer->buffer;
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  NRF_USBD->EPIN[epnum].MAXCNT = xact_len;
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@@ -497,7 +497,7 @@ bool dcd_edpt_busy(edpt_hdl_t edpt_hdl)
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static void queue_xfer_to_buffer(uint8_t ep_id, uint8_t buff_idx, uint16_t buff_addr_offset, uint16_t total_bytes)
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{
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  uint16_t const queued_bytes = min16_of(total_bytes, DCD_11U_13U_MAX_BYTE_PER_TD);
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  uint16_t const queued_bytes = tu_min16(total_bytes, DCD_11U_13U_MAX_BYTE_PER_TD);
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  dcd_data.current_td[ep_id].queued_bytes_in_buff[buff_idx] = queued_bytes;
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  dcd_data.current_td[ep_id].remaining_bytes               -= queued_bytes;
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@@ -312,7 +312,7 @@ static inline uint16_t length_byte2dword(uint16_t length_in_bytes)
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static tusb_error_t pipe_control_xfer(uint8_t ep_id, uint8_t* p_buffer, uint16_t length)
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{
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  uint16_t const packet_len = min16_of(length, CFG_TUD_ENDOINT0_SIZE);
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  uint16_t const packet_len = tu_min16(length, CFG_TUD_ENDOINT0_SIZE);
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  if (ep_id)
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  {
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@@ -355,7 +355,7 @@ static tusb_error_t pipe_control_read(void * buffer, uint16_t length)
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  LPC_USB->USBCtrl = USBCTRL_READ_ENABLE_MASK; // logical endpoint = 0
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  while ((LPC_USB->USBRxPLen & USBRXPLEN_PACKET_READY_MASK) == 0) {} // TODO blocking, should have timeout
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  uint16_t actual_length = min16_of(length, (uint16_t) (LPC_USB->USBRxPLen & USBRXPLEN_PACKET_LENGTH_MASK) );
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  uint16_t actual_length = tu_min16(length, (uint16_t) (LPC_USB->USBRxPLen & USBRXPLEN_PACKET_LENGTH_MASK) );
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  uint32_t *p_read_data = (uint32_t*) buffer;
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  for( uint16_t count=0; count < length_byte2dword(actual_length); count++)
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  {
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@@ -209,7 +209,7 @@ static void qtd_init(dcd_qtd_t* p_qtd, void * data_ptr, uint16_t total_bytes)
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    p_qtd->buffer[0]   = (uint32_t) data_ptr;
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    for(uint8_t i=1; i<5; i++)
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    {
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      p_qtd->buffer[i] |= align4k( p_qtd->buffer[i-1] ) + 4096;
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      p_qtd->buffer[i] |= tu_align4k( p_qtd->buffer[i-1] ) + 4096;
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    }
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  }
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}
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