1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * This header declares the utility functions used by "Gadget Zero", plus
 4 * interfaces to its two single-configuration function drivers.
 5 */
 6
 7#ifndef __G_ZERO_H
 8#define __G_ZERO_H
 9
10#define GZERO_BULK_BUFLEN	4096
11#define GZERO_QLEN		32
12#define GZERO_ISOC_INTERVAL	4
13#define GZERO_ISOC_MAXPACKET	1024
14#define GZERO_SS_BULK_QLEN	1
15#define GZERO_SS_ISO_QLEN	8
16
17struct usb_zero_options {
18	unsigned pattern;
19	unsigned isoc_interval;
20	unsigned isoc_maxpacket;
21	unsigned isoc_mult;
22	unsigned isoc_maxburst;
23	unsigned bulk_buflen;
24	unsigned qlen;
25	unsigned ss_bulk_qlen;
26	unsigned ss_iso_qlen;
27};
28
29struct f_ss_opts {
30	struct usb_function_instance func_inst;
31	unsigned pattern;
32	unsigned isoc_interval;
33	unsigned isoc_maxpacket;
34	unsigned isoc_mult;
35	unsigned isoc_maxburst;
36	unsigned bulk_buflen;
37	unsigned bulk_qlen;
38	unsigned iso_qlen;
39
40	/*
41	 * Read/write access to configfs attributes is handled by configfs.
42	 *
43	 * This is to protect the data from concurrent access by read/write
44	 * and create symlink/remove symlink.
45	 */
46	struct mutex			lock;
47	int				refcnt;
48};
49
50struct f_lb_opts {
51	struct usb_function_instance func_inst;
52	unsigned bulk_buflen;
53	unsigned qlen;
54
55	/*
56	 * Read/write access to configfs attributes is handled by configfs.
57	 *
58	 * This is to protect the data from concurrent access by read/write
59	 * and create symlink/remove symlink.
60	 */
61	struct mutex			lock;
62	int				refcnt;
63};
64
65void lb_modexit(void);
66int lb_modinit(void);
67
68/* common utilities */
69void disable_endpoints(struct usb_composite_dev *cdev,
70		struct usb_ep *in, struct usb_ep *out,
71		struct usb_ep *iso_in, struct usb_ep *iso_out);
72
73#endif /* __G_ZERO_H */

 
 1/*
 2 * This header declares the utility functions used by "Gadget Zero", plus
 3 * interfaces to its two single-configuration function drivers.
 4 */
 5
 6#ifndef __G_ZERO_H
 7#define __G_ZERO_H
 8
 9#define GZERO_BULK_BUFLEN	4096
10#define GZERO_QLEN		32
11#define GZERO_ISOC_INTERVAL	4
12#define GZERO_ISOC_MAXPACKET	1024
13#define GZERO_SS_BULK_QLEN	1
14#define GZERO_SS_ISO_QLEN	8
15
16struct usb_zero_options {
17	unsigned pattern;
18	unsigned isoc_interval;
19	unsigned isoc_maxpacket;
20	unsigned isoc_mult;
21	unsigned isoc_maxburst;
22	unsigned bulk_buflen;
23	unsigned qlen;
24	unsigned ss_bulk_qlen;
25	unsigned ss_iso_qlen;
26};
27
28struct f_ss_opts {
29	struct usb_function_instance func_inst;
30	unsigned pattern;
31	unsigned isoc_interval;
32	unsigned isoc_maxpacket;
33	unsigned isoc_mult;
34	unsigned isoc_maxburst;
35	unsigned bulk_buflen;
36	unsigned bulk_qlen;
37	unsigned iso_qlen;
38
39	/*
40	 * Read/write access to configfs attributes is handled by configfs.
41	 *
42	 * This is to protect the data from concurrent access by read/write
43	 * and create symlink/remove symlink.
44	 */
45	struct mutex			lock;
46	int				refcnt;
47};
48
49struct f_lb_opts {
50	struct usb_function_instance func_inst;
51	unsigned bulk_buflen;
52	unsigned qlen;
53
54	/*
55	 * Read/write access to configfs attributes is handled by configfs.
56	 *
57	 * This is to protect the data from concurrent access by read/write
58	 * and create symlink/remove symlink.
59	 */
60	struct mutex			lock;
61	int				refcnt;
62};
63
64void lb_modexit(void);
65int lb_modinit(void);
66
67/* common utilities */
68void disable_endpoints(struct usb_composite_dev *cdev,
69		struct usb_ep *in, struct usb_ep *out,
70		struct usb_ep *iso_in, struct usb_ep *iso_out);
71
72#endif /* __G_ZERO_H */