ref: 1b51d5683a5d8adcde03bbd277e6331f23c2f723
dir: /sys/src/9/port/usbxhci.h/
/*
 *  I/O interface for usb XHCI controller.
 */
typedef struct Xhci Xhci;
struct Xhci
{
	u32int	*mmio;
	u64int	base;
	u64int	size;
	void	*aux;
	void	(*dmaenable)(Xhci*);
	u64int	(*dmaaddr)(void*);
	Hci	*active;
};
Xhci* xhcialloc(u32int *mmio, u64int base, u64int size);
void xhcilinkage(Hci *hp, Xhci *ctlr);
void xhciinit(Hci *hp);
void xhcishutdown(Hci *hp);