diff options
Diffstat (limited to 'src/include/ipxe/usb.h')
| -rw-r--r-- | src/include/ipxe/usb.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/include/ipxe/usb.h b/src/include/ipxe/usb.h index 911247ede..d9891b757 100644 --- a/src/include/ipxe/usb.h +++ b/src/include/ipxe/usb.h @@ -54,6 +54,20 @@ enum usb_speed { USB_SPEED_SUPER = USB_SPEED ( 5, 3 ), }; +/** Define a USB bus:device address + * + * @v bus Bus address + * @v dev Device address + * @ret busdev Bus:device address + */ +#define USB_BUSDEV( bus, dev ) ( ( (bus) << 8 ) | (dev) ) + +/** Extract USB bus address */ +#define USB_BUS( busdev ) ( (busdev) >> 8 ) + +/** Extract USB device address */ +#define USB_DEV( busdev ) ( (busdev) & 0xff ) + /** USB packet IDs */ enum usb_pid { /** IN PID */ @@ -956,6 +970,12 @@ struct usb_bus { /** Host controller operations set */ struct usb_host_operations *op; + /** Bus address + * + * This is an internal index used only to allow a USB device + * to be identified via a nominal bus:device address. + */ + unsigned int address; /** Largest transfer allowed on the bus */ size_t mtu; /** Address in-use mask @@ -1269,6 +1289,9 @@ extern struct usb_endpoint_companion_descriptor * usb_endpoint_companion_descriptor ( struct usb_configuration_descriptor *config, struct usb_endpoint_descriptor *desc ); +extern struct usb_device * find_usb ( struct usb_bus *bus, + unsigned int address ); + extern struct usb_hub * alloc_usb_hub ( struct usb_bus *bus, struct usb_device *usb, unsigned int ports, @@ -1285,11 +1308,13 @@ extern struct usb_bus * alloc_usb_bus ( struct device *dev, extern int register_usb_bus ( struct usb_bus *bus ); extern void unregister_usb_bus ( struct usb_bus *bus ); extern void free_usb_bus ( struct usb_bus *bus ); +extern struct usb_bus * find_usb_bus ( unsigned int address ); extern struct usb_bus * find_usb_bus_by_location ( unsigned int bus_type, unsigned int location ); extern int usb_alloc_address ( struct usb_bus *bus ); extern void usb_free_address ( struct usb_bus *bus, unsigned int address ); +extern int usb_find_next ( struct usb_device **usb, uint16_t *busdev ); extern unsigned int usb_route_string ( 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 ); |