--- /dev/null
+#ifndef __USB_OHCI_H
+#define __USB_OHCI_H
+
+// usb-ohci.c
+void ohci_init(struct pci_device *pci, int busid);
+struct usb_pipe;
+void ohci_free_pipe(struct usb_pipe *p);
+struct usb_pipe *ohci_alloc_control_pipe(struct usb_pipe *dummy);
+int ohci_control(struct usb_pipe *p, int dir, const void *cmd, int cmdsize
+ , void *data, int datasize);
+struct usb_pipe *ohci_alloc_bulk_pipe(struct usb_pipe *dummy);
+int ohci_send_bulk(struct usb_pipe *p, int dir, void *data, int datasize);
+struct usb_pipe *ohci_alloc_intr_pipe(struct usb_pipe *dummy, int frameexp);
+int ohci_poll_intr(struct usb_pipe *p, void *data);
+
+
+/****************************************************************
+ * ohci structs and flags
+ ****************************************************************/
+
+struct ohci_ed {
+ u32 hwINFO;
+ u32 hwTailP;
+ u32 hwHeadP;
+ u32 hwNextED;
+} PACKED;
+
+#define ED_ISO (1 << 15)
+#define ED_SKIP (1 << 14)
+#define ED_LOWSPEED (1 << 13)
+#define ED_OUT (0x01 << 11)
+#define ED_IN (0x02 << 11)
+
+#define ED_C (0x02)
+#define ED_H (0x01)
+
+struct ohci_td {
+ u32 hwINFO;
+ u32 hwCBP;
+ u32 hwNextTD;
+ u32 hwBE;
+} PACKED;
+
+#define TD_CC 0xf0000000
+#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f)
+#define TD_DI 0x00E00000
+
+#define TD_DONE 0x00020000
+#define TD_ISO 0x00010000
+
+#define TD_EC 0x0C000000
+#define TD_T 0x03000000
+#define TD_T_DATA0 0x02000000
+#define TD_T_DATA1 0x03000000
+#define TD_T_TOGGLE 0x00000000
+#define TD_DP 0x00180000
+#define TD_DP_SETUP 0x00000000
+#define TD_DP_IN 0x00100000
+#define TD_DP_OUT 0x00080000
+
+#define TD_R 0x00040000
+
+struct ohci_hcca {
+ u32 int_table[32];
+ u32 frame_no;
+ u32 done_head;
+ u8 reserved[120];
+} PACKED;
+
+struct ohci_regs {
+ u32 revision;
+ u32 control;
+ u32 cmdstatus;
+ u32 intrstatus;
+ u32 intrenable;
+ u32 intrdisable;
+
+ u32 hcca;
+ u32 ed_periodcurrent;
+ u32 ed_controlhead;
+ u32 ed_controlcurrent;
+ u32 ed_bulkhead;
+ u32 ed_bulkcurrent;
+ u32 donehead;
+
+ u32 fminterval;
+ u32 fmremaining;
+ u32 fmnumber;
+ u32 periodicstart;
+ u32 lsthresh;
+
+ u32 roothub_a;
+ u32 roothub_b;
+ u32 roothub_status;
+ u32 roothub_portstatus[15];
+} PACKED;
+
+#define OHCI_CTRL_CBSR (3 << 0)
+#define OHCI_CTRL_PLE (1 << 2)
+#define OHCI_CTRL_CLE (1 << 4)
+#define OHCI_CTRL_BLE (1 << 5)
+#define OHCI_CTRL_HCFS (3 << 6)
+# define OHCI_USB_RESET (0 << 6)
+# define OHCI_USB_OPER (2 << 6)
+#define OHCI_CTRL_RWC (1 << 9)
+
+#define OHCI_HCR (1 << 0)
+#define OHCI_CLF (1 << 1)
+
+#define OHCI_INTR_MIE (1 << 31)
+
+#define RH_PS_CCS 0x00000001
+#define RH_PS_PES 0x00000002
+#define RH_PS_PSS 0x00000004
+#define RH_PS_POCI 0x00000008
+#define RH_PS_PRS 0x00000010
+#define RH_PS_PPS 0x00000100
+#define RH_PS_LSDA 0x00000200
+#define RH_PS_CSC 0x00010000
+#define RH_PS_PESC 0x00020000
+#define RH_PS_PSSC 0x00040000
+#define RH_PS_OCIC 0x00080000
+#define RH_PS_PRSC 0x00100000
+
+#define RH_HS_LPS 0x00000001
+#define RH_HS_OCI 0x00000002
+#define RH_HS_DRWE 0x00008000
+#define RH_HS_LPSC 0x00010000
+#define RH_HS_OCIC 0x00020000
+#define RH_HS_CRWE 0x80000000
+
+#define RH_B_DR 0x0000ffff
+#define RH_B_PPCM 0xffff0000
+
+#define RH_A_NDP (0xff << 0)
+#define RH_A_PSM (1 << 8)
+#define RH_A_NPS (1 << 9)
+#define RH_A_DT (1 << 10)
+#define RH_A_OCPM (1 << 11)
+#define RH_A_NOCP (1 << 12)
+#define RH_A_POTPGT (0xff << 24)
+
+#endif // usb-ohci.h
