diff options
| -rw-r--r-- | include/linux/usb/gadget.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 9bccd451af..1960958853 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -396,6 +396,7 @@ static inline void usb_ep_fifo_flush(struct usb_ep *ep) /*-------------------------------------------------------------------------*/ struct usb_gadget; +struct usb_gadget_driver; /* the rest of the api to the controller hardware: device operations, * which don't involve endpoints (or i/o). @@ -409,6 +410,9 @@ struct usb_gadget_ops { int (*pullup) (struct usb_gadget *, int is_on); int (*ioctl)(struct usb_gadget *, unsigned code, unsigned long param); + int (*udc_start)(struct usb_gadget *, + struct usb_gadget_driver *); + int (*udc_stop)(struct usb_gadget *); }; /** @@ -459,6 +463,7 @@ struct usb_gadget { struct usb_ep *ep0; struct list_head ep_list; /* of usb_ep */ enum usb_device_speed speed; + enum usb_device_state state; unsigned is_dualspeed:1; unsigned is_otg:1; unsigned is_a_peripheral:1; @@ -686,6 +691,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget) /** * struct usb_gadget_driver - driver for usb 'slave' devices + * @function: String describing the gadget's function * @speed: Highest speed the driver handles. * @bind: Invoked when the driver is bound to a gadget, usually * after registering the driver. @@ -707,6 +713,8 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget) * Called in a context that permits sleeping. * @suspend: Invoked on USB suspend. May be called in_interrupt. * @resume: Invoked on USB resume. May be called in_interrupt. + * @reset: Invoked on USB bus reset. It is mandatory for all gadget drivers + * and should be called in_interrupt. * * Devices are disabled till a gadget driver successfully bind()s, which * means the driver will handle setup() requests needed to enumerate (and @@ -753,6 +761,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget) * power is maintained. */ struct usb_gadget_driver { + char *function; enum usb_device_speed speed; int (*bind)(struct usb_gadget *); void (*unbind)(struct usb_gadget *); @@ -761,6 +770,7 @@ struct usb_gadget_driver { void (*disconnect)(struct usb_gadget *); void (*suspend)(struct usb_gadget *); void (*resume)(struct usb_gadget *); + void (*reset)(struct usb_gadget *); }; @@ -801,6 +811,10 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver); */ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver); +int usb_add_gadget_udc_release(struct device *parent, + struct usb_gadget *gadget, void (*release)(struct device *dev)); +int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget); +void usb_del_gadget_udc(struct usb_gadget *gadget); /*-------------------------------------------------------------------------*/ /* utility to simplify dealing with string descriptors */ @@ -847,6 +861,35 @@ int usb_gadget_config_buf(const struct usb_config_descriptor *config, void *buf, unsigned buflen, const struct usb_descriptor_header **desc); /*-------------------------------------------------------------------------*/ +/* utility to simplify map/unmap of usb_requests to/from DMA */ + +extern int usb_gadget_map_request(struct usb_gadget *gadget, + struct usb_request *req, int is_in); + +extern void usb_gadget_unmap_request(struct usb_gadget *gadget, + struct usb_request *req, int is_in); + +/*-------------------------------------------------------------------------*/ + +/* utility to set gadget state properly */ + +extern void usb_gadget_set_state(struct usb_gadget *gadget, + enum usb_device_state state); + +/*-------------------------------------------------------------------------*/ + +/* utility to tell udc core that the bus reset occurs */ +extern void usb_gadget_udc_reset(struct usb_gadget *gadget, + struct usb_gadget_driver *driver); + +/*-------------------------------------------------------------------------*/ + +/* utility to give requests back to the gadget layer */ + +extern void usb_gadget_giveback_request(struct usb_ep *ep, + struct usb_request *req); + +/*-------------------------------------------------------------------------*/ /* utility wrapping a simple endpoint selection policy */ |