diff options
Diffstat (limited to 'src/include/ipxe/usb.h')
| -rw-r--r-- | src/include/ipxe/usb.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/include/ipxe/usb.h b/src/include/ipxe/usb.h index 68289d26d..911247ede 100644 --- a/src/include/ipxe/usb.h +++ b/src/include/ipxe/usb.h @@ -580,6 +580,7 @@ usb_endpoint_described ( struct usb_endpoint *ep, struct usb_interface_descriptor *interface, unsigned int type, unsigned int index ); extern int usb_endpoint_open ( struct usb_endpoint *ep ); +extern int usb_endpoint_clear_halt ( struct usb_endpoint *ep ); extern void usb_endpoint_close ( struct usb_endpoint *ep ); extern int usb_message ( struct usb_endpoint *ep, unsigned int request, unsigned int value, unsigned int index, @@ -620,6 +621,7 @@ usb_recycle ( struct usb_endpoint *ep, struct io_buffer *iobuf ) { } extern int usb_prefill ( struct usb_endpoint *ep ); +extern int usb_refill_limit ( struct usb_endpoint *ep, unsigned int max ); extern int usb_refill ( struct usb_endpoint *ep ); extern void usb_flush ( struct usb_endpoint *ep ); @@ -1237,6 +1239,23 @@ usb_set_interface ( struct usb_device *usb, unsigned int interface, NULL, 0 ); } +/** + * Get USB depth + * + * @v usb USB device + * @ret depth Hub depth + */ +static inline unsigned int usb_depth ( struct usb_device *usb ) { + struct usb_device *parent; + unsigned int depth; + + /* Navigate up to root hub, constructing depth as we go */ + for ( depth = 0 ; ( parent = usb->port->hub->usb ) ; usb = parent ) + depth++; + + return depth; +} + extern struct list_head usb_buses; extern struct usb_interface_descriptor * @@ -1272,7 +1291,6 @@ extern struct usb_bus * find_usb_bus_by_location ( unsigned int bus_type, extern int usb_alloc_address ( struct usb_bus *bus ); extern void usb_free_address ( struct usb_bus *bus, unsigned int address ); extern unsigned int usb_route_string ( struct usb_device *usb ); -extern unsigned int usb_depth ( struct usb_device *usb ); extern struct usb_port * usb_root_hub_port ( struct usb_device *usb ); extern struct usb_port * usb_transaction_translator ( struct usb_device *usb ); @@ -1396,6 +1414,9 @@ struct usb_driver { /** Declare a USB driver */ #define __usb_driver __table_entry ( USB_DRIVERS, 01 ) +/** Declare a USB fallback driver */ +#define __usb_fallback_driver __table_entry ( USB_DRIVERS, 02 ) + /** USB driver scores */ enum usb_driver_score { /** Fallback driver (has no effect on overall score) */ |