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__ */ 89