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