#pragma once #include "imxrt.h" typedef struct transfer_struct transfer_t; struct transfer_struct { uint32_t next; volatile uint32_t status; uint32_t pointer0; uint32_t pointer1; uint32_t pointer2; uint32_t pointer3; uint32_t pointer4; uint32_t callback_param; }; void usb_init(void); void usb_init_serialnumber(void); void usb_config_rx(uint32_t ep, uint32_t packet_size, int do_zlp, void (*cb)(transfer_t *)); void usb_config_tx(uint32_t ep, uint32_t packet_size, int do_zlp, void (*cb)(transfer_t *)); void usb_prepare_transfer(transfer_t *transfer, const void *data, uint32_t len, uint32_t param); void usb_transmit(int endpoint_number, transfer_t *transfer); void usb_receive(int endpoint_number, transfer_t *transfer); uint32_t usb_transfer_status(const transfer_t *transfer); void usb_start_sof_interrupts(int interface); void usb_stop_sof_interrupts(int interface); extern void (*usb_timer0_callback)(void); extern void (*usb_timer1_callback)(void);