Merge tag 'efi-2020-07-rc2-3' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

[oweals/u-boot.git] / include / usb.h

diff --git a/include/usb.h b/include/usb.h
index efb67ea33ffbdbe3e8ee9460fd3977a73811d591..22f6088fe66afc8a63dc5533aa2fd2926cb4afee 100644 (file)
--- a/include/usb.h
+++ b/include/usb.h
@@ -269,6 +269,7 @@ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
                        void *data, int len, int *actual_length, int timeout);
 int usb_int_msg(struct usb_device *dev, unsigned long pipe,
                void *buffer, int transfer_len, int interval, bool nonblock);
+int usb_lock_async(struct usb_device *dev, int lock);
 int usb_disable_asynch(int disable);
 int usb_maxpacket(struct usb_device *dev, unsigned long pipe);
 int usb_get_configuration_no(struct usb_device *dev, int cfgno,
@@ -791,6 +792,16 @@ struct dm_usb_ops {
         * in a USB transfer. USB class driver needs to be aware of this.
         */
        int (*get_max_xfer_size)(struct udevice *bus, size_t *size);
+
+       /**
+        * lock_async() - Keep async schedule after a transfer
+        *
+        * It may be desired to keep the asynchronous schedule running even
+        * after a transfer finishes, usually when doing multiple transfers
+        * back-to-back. This callback allows signalling the USB controller
+        * driver to do just that.
+        */
+       int (*lock_async)(struct udevice *udev, int lock);
 };
 
 #define usb_get_ops(dev)       ((struct dm_usb_ops *)(dev)->driver->ops)