diff options
Diffstat (limited to 'drivers/usb/musb-new/usb-compat.h')
-rw-r--r-- | drivers/usb/musb-new/usb-compat.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/usb/musb-new/usb-compat.h b/drivers/usb/musb-new/usb-compat.h new file mode 100644 index 0000000..27f656f --- /dev/null +++ b/drivers/usb/musb-new/usb-compat.h @@ -0,0 +1,88 @@ +#ifndef __USB_COMPAT_H__ +#define __USB_COMPAT_H__ + +#include "usb.h" + +struct usb_hcd { + void *hcd_priv; +}; + +struct usb_host_endpoint { + struct usb_endpoint_descriptor desc; + struct list_head urb_list; + void *hcpriv; +}; + +/* + * urb->transfer_flags: + * + * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb(). + */ +#define URB_SHORT_NOT_OK 0x0001 /* report short reads as errors */ +#define URB_ZERO_PACKET 0x0040 /* Finish bulk OUT with short packet */ + +struct urb; + +typedef void (*usb_complete_t)(struct urb *); + +struct urb { + void *hcpriv; /* private data for host controller */ + struct list_head urb_list; /* list head for use by the urb's + * current owner */ + struct usb_device *dev; /* (in) pointer to associated device */ + struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */ + unsigned int pipe; /* (in) pipe information */ + int status; /* (return) non-ISO status */ + unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/ + void *transfer_buffer; /* (in) associated data buffer */ + dma_addr_t transfer_dma; /* (in) dma addr for transfer_buffer */ + u32 transfer_buffer_length; /* (in) data buffer length */ + u32 actual_length; /* (return) actual transfer length */ + unsigned char *setup_packet; /* (in) setup packet (control only) */ + int start_frame; /* (modify) start frame (ISO) */ + usb_complete_t complete; /* (in) completion routine */ +}; + +#define usb_hcd_link_urb_to_ep(hcd, urb) ({ \ + int ret = 0; \ + list_add_tail(&urb->urb_list, &urb->ep->urb_list); \ + ret; }) +#define usb_hcd_unlink_urb_from_ep(hcd, urb) list_del_init(&urb->urb_list) + +static inline void usb_hcd_giveback_urb(struct usb_hcd *hcd, + struct urb *urb, + int status) +{ + urb->status = status; + if (urb->complete) + urb->complete(urb); +} + +static inline int usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd, + struct urb *urb) +{ + /* TODO: add cache invalidation here */ + return 0; +} + +static inline u16 find_tt(struct usb_device *dev) +{ + u8 chid; + u8 hub; + + /* Find out the nearest parent which is high speed */ + while (dev->parent->parent != NULL) + if (dev->parent->speed != USB_SPEED_HIGH) + dev = dev->parent; + else + break; + + /* determine the port address at that hub */ + hub = dev->parent->devnum; + for (chid = 0; chid < USB_MAXCHILDREN; chid++) + if (dev->parent->children[chid] == dev) + break; + + return (hub << 8) | chid; +} +#endif /* __USB_COMPAT_H__ */ |