--- /dev/null
+#ifndef __USB_EHCI_H
+#define __USB_EHCI_H
+
+// usb-ehci.c
+int ehci_init(struct pci_device *pci, int busid, struct pci_device *comppci);
+struct usb_pipe;
+void ehci_free_pipe(struct usb_pipe *p);
+struct usb_pipe *ehci_alloc_control_pipe(struct usb_pipe *dummy);
+int ehci_control(struct usb_pipe *p, int dir, const void *cmd, int cmdsize
+ , void *data, int datasize);
+struct usb_pipe *ehci_alloc_bulk_pipe(struct usb_pipe *dummy);
+int ehci_send_bulk(struct usb_pipe *p, int dir, void *data, int datasize);
+struct usb_pipe *ehci_alloc_intr_pipe(struct usb_pipe *dummy, int frameexp);
+int ehci_poll_intr(struct usb_pipe *p, void *data);
+
+
+/****************************************************************
+ * ehci structs and flags
+ ****************************************************************/
+
+struct ehci_caps {
+ u8 caplength;
+ u8 reserved_01;
+ u16 hciversion;
+ u32 hcsparams;
+ u32 hccparams;
+ u64 portroute;
+} PACKED;
+
+#define HCC_64BIT_ADDR 1
+
+#define HCS_N_PORTS_MASK 0xf
+
+struct ehci_regs {
+ u32 usbcmd;
+ u32 usbsts;
+ u32 usbintr;
+ u32 frindex;
+ u32 ctrldssegment;
+ u32 periodiclistbase;
+ u32 asynclistbase;
+ u32 reserved[9];
+ u32 configflag;
+ u32 portsc[0];
+} PACKED;
+
+#define CMD_PARK (1<<11)
+#define CMD_PARK_CNT(c) (((c)>>8)&3)
+#define CMD_LRESET (1<<7)
+#define CMD_IAAD (1<<6)
+#define CMD_ASE (1<<5)
+#define CMD_PSE (1<<4)
+#define CMD_HCRESET (1<<1)
+#define CMD_RUN (1<<0)
+
+#define STS_ASS (1<<15)
+#define STS_PSS (1<<14)
+#define STS_RECL (1<<13)
+#define STS_HALT (1<<12)
+#define STS_IAA (1<<5)
+#define STS_FATAL (1<<4)
+#define STS_FLR (1<<3)
+#define STS_PCD (1<<2)
+#define STS_ERR (1<<1)
+#define STS_INT (1<<0)
+
+#define FLAG_CF (1<<0)
+
+#define PORT_WKOC_E (1<<22)
+#define PORT_WKDISC_E (1<<21)
+#define PORT_WKCONN_E (1<<20)
+#define PORT_TEST_PKT (0x4<<16)
+#define PORT_LED_OFF (0<<14)
+#define PORT_LED_AMBER (1<<14)
+#define PORT_LED_GREEN (2<<14)
+#define PORT_LED_MASK (3<<14)
+#define PORT_OWNER (1<<13)
+#define PORT_POWER (1<<12)
+#define PORT_LINESTATUS_MASK (3<<10)
+#define PORT_LINESTATUS_KSTATE (1<<10)
+#define PORT_RESET (1<<8)
+#define PORT_SUSPEND (1<<7)
+#define PORT_RESUME (1<<6)
+#define PORT_OCC (1<<5)
+#define PORT_OC (1<<4)
+#define PORT_PEC (1<<3)
+#define PORT_PE (1<<2)
+#define PORT_CSC (1<<1)
+#define PORT_CONNECT (1<<0)
+#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC)
+
+
+#define EHCI_QH_ALIGN 64 // Can't span a 4K boundary, so increase to 64
+
+struct ehci_qh {
+ u32 next;
+ u32 info1;
+ u32 info2;
+ u32 current;
+
+ u32 qtd_next;
+ u32 alt_next;
+ u32 token;
+ u32 buf[5];
+ // u32 buf_hi[5];
+} PACKED;
+
+#define QH_CONTROL (1 << 27)
+#define QH_MAXPACKET_SHIFT 16
+#define QH_MAXPACKET_MASK (0x7ff << QH_MAXPACKET_SHIFT)
+#define QH_HEAD (1 << 15)
+#define QH_TOGGLECONTROL (1 << 14)
+#define QH_SPEED_SHIFT 12
+#define QH_SPEED_MASK (0x3 << QH_SPEED_SHIFT)
+#define QH_EP_SHIFT 8
+#define QH_EP_MASK (0xf << QH_EP_SHIFT)
+#define QH_DEVADDR_SHIFT 0
+#define QH_DEVADDR_MASK (0x7f << QH_DEVADDR_SHIFT)
+
+#define QH_SMASK_SHIFT 0
+#define QH_SMASK_MASK (0xff << QH_SMASK_SHIFT)
+#define QH_CMASK_SHIFT 8
+#define QH_CMASK_MASK (0xff << QH_CMASK_SHIFT)
+#define QH_HUBADDR_SHIFT 16
+#define QH_HUBADDR_MASK (0x7f << QH_HUBADDR_SHIFT)
+#define QH_HUBPORT_SHIFT 23
+#define QH_HUBPORT_MASK (0x7f << QH_HUBPORT_SHIFT)
+#define QH_MULT_SHIFT 30
+#define QH_MULT_MASK (0x3 << QH_MULT_SHIFT)
+
+#define EHCI_PTR_BITS 0x001F
+#define EHCI_PTR_TERM 0x0001
+#define EHCI_PTR_QH 0x0002
+
+
+#define EHCI_QTD_ALIGN 32
+
+struct ehci_qtd {
+ u32 qtd_next;
+ u32 alt_next;
+ u32 token;
+ u32 buf[5];
+ //u32 buf_hi[5];
+} PACKED;
+
+#define QTD_TOGGLE (1 << 31)
+#define QTD_LENGTH_SHIFT 16
+#define QTD_LENGTH_MASK (0x7fff << QTD_LENGTH_SHIFT)
+#define QTD_CERR_SHIFT 10
+#define QTD_CERR_MASK (0x3 << QTD_CERR_SHIFT)
+#define QTD_IOC (1 << 15)
+#define QTD_PID_OUT (0x0 << 8)
+#define QTD_PID_IN (0x1 << 8)
+#define QTD_PID_SETUP (0x2 << 8)
+#define QTD_STS_ACTIVE (1 << 7)
+#define QTD_STS_HALT (1 << 6)
+#define QTD_STS_DBE (1 << 5)
+#define QTD_STS_BABBLE (1 << 4)
+#define QTD_STS_XACT (1 << 3)
+#define QTD_STS_MMF (1 << 2)
+#define QTD_STS_STS (1 << 1)
+#define QTD_STS_PING (1 << 0)
+
+#define ehci_explen(len) (((len) << QTD_LENGTH_SHIFT) & QTD_LENGTH_MASK)
+
+#define ehci_maxerr(err) (((err) << QTD_CERR_SHIFT) & QTD_CERR_MASK)
+
+
+struct ehci_framelist {
+ u32 links[1024];
+} PACKED;
+
+#endif // usb-ehci.h
