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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_INT_INTERVAL 1 /* Default interrupt interval = 1 ms */
14#define GZERO_INT_MAXPACKET 1024
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 int_interval; /* In ms */
23 unsigned int_maxpacket;
24 unsigned int_mult;
25 unsigned int_maxburst;
26 unsigned bulk_buflen;
27 unsigned qlen;
28};
29
30struct f_ss_opts {
31 struct usb_function_instance func_inst;
32 unsigned pattern;
33 unsigned isoc_interval;
34 unsigned isoc_maxpacket;
35 unsigned isoc_mult;
36 unsigned isoc_maxburst;
37 unsigned int_interval; /* In ms */
38 unsigned int_maxpacket;
39 unsigned int_mult;
40 unsigned int_maxburst;
41 unsigned bulk_buflen;
42
43 /*
44 * Read/write access to configfs attributes is handled by configfs.
45 *
46 * This is to protect the data from concurrent access by read/write
47 * and create symlink/remove symlink.
48 */
49 struct mutex lock;
50 int refcnt;
51};
52
53struct f_lb_opts {
54 struct usb_function_instance func_inst;
55 unsigned bulk_buflen;
56 unsigned qlen;
57
58 /*
59 * Read/write access to configfs attributes is handled by configfs.
60 *
61 * This is to protect the data from concurrent access by read/write
62 * and create symlink/remove symlink.
63 */
64 struct mutex lock;
65 int refcnt;
66};
67
68void lb_modexit(void);
69int lb_modinit(void);
70
71/* common utilities */
72void free_ep_req(struct usb_ep *ep, struct usb_request *req);
73void disable_endpoints(struct usb_composite_dev *cdev,
74 struct usb_ep *in, struct usb_ep *out,
75 struct usb_ep *iso_in, struct usb_ep *iso_out,
76 struct usb_ep *int_in, struct usb_ep *int_out);
77
78#endif /* __G_ZERO_H */