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

   1 #ifndef __USB_COMPAT_H__
   2 #define __USB_COMPAT_H__
   3
   4 #include "usb.h"
   5
   6 struct usb_hcd {
   7         void *hcd_priv;
   8 };
   9
  10 struct usb_host_endpoint {
  11         struct usb_endpoint_descriptor          desc;
  12         struct list_head urb_list;
  13         void *hcpriv;
  14 };
  15
  16 /*
  17  * urb->transfer_flags:
  18  *
  19  * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb().
  20  */
  21 #define URB_SHORT_NOT_OK        0x0001  /* report short reads as errors */
  22 #define URB_ZERO_PACKET         0x0040  /* Finish bulk OUT with short packet */
  23
  24 struct urb;
  25
  26 typedef void (*usb_complete_t)(struct urb *);
  27
  28 struct urb {
  29         void *hcpriv;                   /* private data for host controller */
  30         struct list_head urb_list;      /* list head for use by the urb's
  31                                          * current owner */
  32         struct usb_device *dev;         /* (in) pointer to associated device */
  33         struct usb_host_endpoint *ep;   /* (internal) pointer to endpoint */
  34         unsigned int pipe;              /* (in) pipe information */
  35         int status;                     /* (return) non-ISO status */
  36         unsigned int transfer_flags;    /* (in) URB_SHORT_NOT_OK | ...*/
  37         void *transfer_buffer;          /* (in) associated data buffer */
  38         dma_addr_t transfer_dma;        /* (in) dma addr for transfer_buffer */
  39         u32 transfer_buffer_length;     /* (in) data buffer length */
  40         u32 actual_length;              /* (return) actual transfer length */
  41         unsigned char *setup_packet;    /* (in) setup packet (control only) */
  42         int start_frame;                /* (modify) start frame (ISO) */
  43         usb_complete_t complete;        /* (in) completion routine */
  44 };
  45
  46 #define usb_hcd_link_urb_to_ep(hcd, urb)        ({              \
  47         int ret = 0;                                            \
  48         list_add_tail(&urb->urb_list, &urb->ep->urb_list);      \
  49         ret; })
  50 #define usb_hcd_unlink_urb_from_ep(hcd, urb)    list_del_init(&urb->urb_list)
  51
  52 static inline void usb_hcd_giveback_urb(struct usb_hcd *hcd,
  53                                         struct urb *urb,
  54                                         int status)
  55 {
  56         urb->status = status;
  57         if (urb->complete)
  58                 urb->complete(urb);
  59 }
  60
  61 static inline int usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd,
  62                                         struct urb *urb)
  63 {
  64         /* TODO: add cache invalidation here */
  65         return 0;
  66 }
  67
  68 static inline u16 find_tt(struct usb_device *dev)
  69 {
  70         u8 chid;
  71         u8 hub;
  72
  73         /* Find out the nearest parent which is high speed */
  74         while (dev->parent->parent != NULL)
  75                 if (dev->parent->speed != USB_SPEED_HIGH)
  76                         dev = dev->parent;
  77                 else
  78                         break;
  79
  80         /* determine the port address at that hub */
  81         hub = dev->parent->devnum;
  82         for (chid = 0; chid < USB_MAXCHILDREN; chid++)
  83                 if (dev->parent->children[chid] == dev)
  84                         break;
  85
  86         return (hub << 8) | chid;
  87 }
  88 #endif /* __USB_COMPAT_H__ */