Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / usb / gadget / function / g_zero.h

diff --git a/kernel/drivers/usb/gadget/function/g_zero.h b/kernel/drivers/usb/gadget/function/g_zero.h
new file mode 100644 (file)
index 0000000..15f1809
--- /dev/null
+++ b/kernel/drivers/usb/gadget/function/g_zero.h
@@ -0,0 +1,67 @@
+/*
+ * This header declares the utility functions used by "Gadget Zero", plus
+ * interfaces to its two single-configuration function drivers.
+ */
+
+#ifndef __G_ZERO_H
+#define __G_ZERO_H
+
+#define GZERO_BULK_BUFLEN      4096
+#define GZERO_QLEN             32
+#define GZERO_ISOC_INTERVAL    4
+#define GZERO_ISOC_MAXPACKET   1024
+
+struct usb_zero_options {
+       unsigned pattern;
+       unsigned isoc_interval;
+       unsigned isoc_maxpacket;
+       unsigned isoc_mult;
+       unsigned isoc_maxburst;
+       unsigned bulk_buflen;
+       unsigned qlen;
+};
+
+struct f_ss_opts {
+       struct usb_function_instance func_inst;
+       unsigned pattern;
+       unsigned isoc_interval;
+       unsigned isoc_maxpacket;
+       unsigned isoc_mult;
+       unsigned isoc_maxburst;
+       unsigned bulk_buflen;
+
+       /*
+        * Read/write access to configfs attributes is handled by configfs.
+        *
+        * This is to protect the data from concurrent access by read/write
+        * and create symlink/remove symlink.
+        */
+       struct mutex                    lock;
+       int                             refcnt;
+};
+
+struct f_lb_opts {
+       struct usb_function_instance func_inst;
+       unsigned bulk_buflen;
+       unsigned qlen;
+
+       /*
+        * Read/write access to configfs attributes is handled by configfs.
+        *
+        * This is to protect the data from concurrent access by read/write
+        * and create symlink/remove symlink.
+        */
+       struct mutex                    lock;
+       int                             refcnt;
+};
+
+void lb_modexit(void);
+int lb_modinit(void);
+
+/* common utilities */
+void free_ep_req(struct usb_ep *ep, struct usb_request *req);
+void disable_endpoints(struct usb_composite_dev *cdev,
+               struct usb_ep *in, struct usb_ep *out,
+               struct usb_ep *iso_in, struct usb_ep *iso_out);
+
+#endif /* __G_ZERO_H */