X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fusb.h;h=22f6088fe66afc8a63dc5533aa2fd2926cb4afee;hb=df42f321390411285dac3df603f6eb583d593481;hp=bcad552f85f033009a3a436c9b0e593501ffa0bd;hpb=6f4001315af2f818bfc656df81e138d1434d1fc2;p=oweals%2Fu-boot.git

diff --git a/include/usb.h b/include/usb.h
index bcad552f85..22f6088fe6 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -242,6 +242,12 @@ int usb_host_eth_scan(int mode);
 
 #ifdef CONFIG_USB_KEYBOARD
 
+/*
+ * USB Keyboard reports are 8 bytes in boot protocol.
+ * Appendix B of HID Device Class Definition 1.11
+ */
+#define USB_KBD_BOOT_REPORT_SIZE 8
+
 int drv_usb_kbd_init(void);
 int usb_kbd_deregister(int force);
 
@@ -263,6 +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,
@@ -785,6 +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)