LXR uboot/drivers/usb/musb-new/usb-compat.h

   1#ifndef __USB_COMPAT_H__
   2#define __USB_COMPAT_H__
   3
   4#include <dm.h>
   5#include "usb.h"
   6
   7struct usb_hcd {
   8        void *hcd_priv;
   9};
  10
  11struct usb_host_endpoint {
  12        struct usb_endpoint_descriptor          desc;
  13        struct list_head urb_list;
  14        void *hcpriv;
  15};
  16
  17/*
  18 * urb->transfer_flags:
  19 *
  20 * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb().
  21 */
  22#define URB_SHORT_NOT_OK        0x0001  /* report short reads as errors */
  23#define URB_ZERO_PACKET         0x0040  /* Finish bulk OUT with short packet */
  24
  25struct urb;
  26
  27typedef void (*usb_complete_t)(struct urb *);
  28
  29struct urb {
  30        void *hcpriv;                   /* private data for host controller */
  31        struct list_head urb_list;      /* list head for use by the urb's
  32                                         * current owner */
  33        struct usb_device *dev;         /* (in) pointer to associated device */
  34        struct usb_host_endpoint *ep;   /* (internal) pointer to endpoint */
  35        unsigned int pipe;              /* (in) pipe information */
  36        int status;                     /* (return) non-ISO status */
  37        unsigned int transfer_flags;    /* (in) URB_SHORT_NOT_OK | ...*/
  38        void *transfer_buffer;          /* (in) associated data buffer */
  39        dma_addr_t transfer_dma;        /* (in) dma addr for transfer_buffer */
  40        u32 transfer_buffer_length;     /* (in) data buffer length */
  41        u32 actual_length;              /* (return) actual transfer length */
  42        unsigned char *setup_packet;    /* (in) setup packet (control only) */
  43        int start_frame;                /* (modify) start frame (ISO) */
  44        usb_complete_t complete;        /* (in) completion routine */
  45};
  46
  47#define usb_hcd_link_urb_to_ep(hcd, urb)        ({              \
  48        int ret = 0;                                            \
  49        list_add_tail(&urb->urb_list, &urb->ep->urb_list);      \
  50        ret; })
  51#define usb_hcd_unlink_urb_from_ep(hcd, urb)    list_del_init(&urb->urb_list)
  52#define usb_hcd_check_unlink_urb(hdc, urb, status)      0
  53
  54static inline void usb_hcd_giveback_urb(struct usb_hcd *hcd,
  55                                        struct urb *urb,
  56                                        int status)
  57{
  58        urb->status = status;
  59        if (urb->complete)
  60                urb->complete(urb);
  61}
  62
  63static inline int usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd,
  64                                        struct urb *urb)
  65{
  66        /* TODO: add cache invalidation here */
  67        return 0;
  68}
  69
  70#ifdef CONFIG_DM_USB
  71static inline struct usb_device *usb_dev_get_parent(struct usb_device *udev)
  72{
  73        struct udevice *parent = udev->dev->parent;
  74
  75        /*
  76         * When called from usb-uclass.c: usb_scan_device() udev->dev points
  77         * to the parent udevice, not the actual udevice belonging to the
  78         * udev as the device is not instantiated yet.
  79         *
  80         * If dev is an usb-bus, then we are called from usb_scan_device() for
  81         * an usb-device plugged directly into the root port, return NULL.
  82         */
  83        if (device_get_uclass_id(udev->dev) == UCLASS_USB)
  84                return NULL;
  85
  86        /*
  87         * If these 2 are not the same we are being called from
  88         * usb_scan_device() and udev itself is the parent.
  89         */
  90        if (dev_get_parent_priv(udev->dev) != udev)
  91                return udev;
  92
  93        /* We are being called normally, use the parent pointer */
  94        if (device_get_uclass_id(parent) == UCLASS_USB_HUB)
  95                return dev_get_parent_priv(parent);
  96
  97        return NULL;
  98}
  99#else
 100static inline struct usb_device *usb_dev_get_parent(struct usb_device *dev)
 101{
 102        return dev->parent;
 103}
 104#endif
 105
 106#endif /* __USB_COMPAT_H__ */
 107