| Message ID | 1465564043-27163-4-git-send-email-rogerq@ti.com |
|---|---|
| State | New |
| Headers | show |
+Alan On 10/06/16 16:07, Roger Quadros wrote: > The OTG core will use struct otg_hcd_ops to interface > with the HCD (Host Controller Driver). > > The main purpose of this interface is to avoid directly > calling HCD APIs from the OTG core as they > wouldn't be defined in the built-in symbol table if > CONFIG_USB is m. > > Signed-off-by: Roger Quadros <rogerq@ti.com> > Acked-by: Peter Chen <peter.chen@nxp.com> > --- > include/linux/usb/hcd.h | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h > index 66fc137..7729c1f 100644 > --- a/include/linux/usb/hcd.h > +++ b/include/linux/usb/hcd.h > @@ -400,6 +400,30 @@ struct hc_driver { > > }; > > +/** > + * struct otg_hcd_ops - Interface between OTG core and HCD > + * > + * Provided by the HCD core to allow the OTG core to interface with the HCD > + * > + * @add: function to add the HCD > + * @remove: function to remove the HCD > + * @usb_bus_start_enum: function to immediately start bus enumeration > + * @usb_control_msg: function to build and send a control URB > + * @usb_hub_find_child: function to get pointer to the child device > + */ > +struct otg_hcd_ops { > + int (*add)(struct usb_hcd *hcd, > + unsigned int irqnum, unsigned long irqflags); > + void (*remove)(struct usb_hcd *hcd); > + int (*usb_bus_start_enum)(struct usb_bus *bus, unsigned int port_num); > + int (*usb_control_msg)(struct usb_device *dev, unsigned int pipe, > + __u8 request, __u8 requesttype, __u16 value, > + __u16 index, void *data, __u16 size, > + int timeout); > + struct usb_device * (*usb_hub_find_child)(struct usb_device *hdev, > + int port1); > +}; > + > static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) > { > return hcd->driver->flags & HCD_BH; > -- cheers, -roger
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 66fc137..7729c1f 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -400,6 +400,30 @@ struct hc_driver { }; +/** + * struct otg_hcd_ops - Interface between OTG core and HCD + * + * Provided by the HCD core to allow the OTG core to interface with the HCD + * + * @add: function to add the HCD + * @remove: function to remove the HCD + * @usb_bus_start_enum: function to immediately start bus enumeration + * @usb_control_msg: function to build and send a control URB + * @usb_hub_find_child: function to get pointer to the child device + */ +struct otg_hcd_ops { + int (*add)(struct usb_hcd *hcd, + unsigned int irqnum, unsigned long irqflags); + void (*remove)(struct usb_hcd *hcd); + int (*usb_bus_start_enum)(struct usb_bus *bus, unsigned int port_num); + int (*usb_control_msg)(struct usb_device *dev, unsigned int pipe, + __u8 request, __u8 requesttype, __u16 value, + __u16 index, void *data, __u16 size, + int timeout); + struct usb_device * (*usb_hub_find_child)(struct usb_device *hdev, + int port1); +}; + static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) { return hcd->driver->flags & HCD_BH;