X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fusb%2Fgadget%2Ffunction%2Fg_zero.h;fp=kernel%2Fdrivers%2Fusb%2Fgadget%2Ffunction%2Fg_zero.h;h=15f180904f8a3980e2845c38bf327e5174b8df30;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/usb/gadget/function/g_zero.h b/kernel/drivers/usb/gadget/function/g_zero.h
new file mode 100644
index 000000000..15f180904
--- /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 */