LXR uboot/drivers/usb/musb-new/musb

   1/*
   2 * MUSB OTG driver host defines
   3 *
   4 * Copyright 2005 Mentor Graphics Corporation
   5 * Copyright (C) 2005-2006 by Texas Instruments
   6 * Copyright (C) 2006-2007 Nokia Corporation
   7 *
   8 * SPDX-License-Identifier:     GPL-2.0
   9 */
  10
  11#ifndef _MUSB_HOST_H
  12#define _MUSB_HOST_H
  13#ifdef __UBOOT__
  14#include "usb-compat.h"
  15#endif
  16
  17static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
  18{
  19        return container_of((void *) musb, struct usb_hcd, hcd_priv);
  20}
  21
  22static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
  23{
  24        return (struct musb *) (hcd->hcd_priv);
  25}
  26
  27/* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
  28struct musb_qh {
  29        struct usb_host_endpoint *hep;          /* usbcore info */
  30        struct usb_device       *dev;
  31        struct musb_hw_ep       *hw_ep;         /* current binding */
  32
  33        struct list_head        ring;           /* of musb_qh */
  34        /* struct musb_qh               *next; */       /* for periodic tree */
  35        u8                      mux;            /* qh multiplexed to hw_ep */
  36
  37        unsigned                offset;         /* in urb->transfer_buffer */
  38        unsigned                segsize;        /* current xfer fragment */
  39
  40        u8                      type_reg;       /* {rx,tx} type register */
  41        u8                      intv_reg;       /* {rx,tx} interval register */
  42        u8                      addr_reg;       /* device address register */
  43        u8                      h_addr_reg;     /* hub address register */
  44        u8                      h_port_reg;     /* hub port register */
  45
  46        u8                      is_ready;       /* safe to modify hw_ep */
  47        u8                      type;           /* XFERTYPE_* */
  48        u8                      epnum;
  49        u8                      hb_mult;        /* high bandwidth pkts per uf */
  50        u16                     maxpacket;
  51        u16                     frame;          /* for periodic schedule */
  52        unsigned                iso_idx;        /* in urb->iso_frame_desc[] */
  53};
  54
  55/* map from control or bulk queue head to the first qh on that ring */
  56static inline struct musb_qh *first_qh(struct list_head *q)
  57{
  58        if (list_empty(q))
  59                return NULL;
  60        return list_entry(q->next, struct musb_qh, ring);
  61}
  62
  63
  64extern void musb_root_disconnect(struct musb *musb);
  65
  66struct usb_hcd;
  67
  68extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
  69extern int musb_hub_control(struct usb_hcd *hcd,
  70                        u16 typeReq, u16 wValue, u16 wIndex,
  71                        char *buf, u16 wLength);
  72
  73extern const struct hc_driver musb_hc_driver;
  74
  75static inline struct urb *next_urb(struct musb_qh *qh)
  76{
  77        struct list_head        *queue;
  78
  79        if (!qh)
  80                return NULL;
  81        queue = &qh->hep->urb_list;
  82        if (list_empty(queue))
  83                return NULL;
  84        return list_entry(queue->next, struct urb, urb_list);
  85}
  86
  87#ifdef __UBOOT__
  88int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
  89int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
  90#endif
  91#endif                          /* _MUSB_HOST_H */
  92