1 #ifndef __USB_COMPAT_H__
2 #define __USB_COMPAT_H__
3
4 #include <dm.h>
5 #include "usb.h"
6
7 struct usb_hcd {
8 void *hcd_priv;
9 };
10
11 struct 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
25 struct urb;
26
27 typedef void (*usb_complete_t)(struct urb *);
28
29 struct 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
usb_hcd_giveback_urb(struct usb_hcd * hcd,struct urb * urb,int status)54 static 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
usb_hcd_unmap_urb_for_dma(struct usb_hcd * hcd,struct urb * urb)63 static 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
usb_dev_get_parent(struct usb_device * udev)71 static 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
usb_dev_get_parent(struct usb_device * dev)100 static 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