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/* SPDX-License-Identifier: GPL-2.0 */
/*
* 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
#define GZERO_SS_BULK_QLEN 1
#define GZERO_SS_ISO_QLEN 8
struct usb_zero_options {
unsigned pattern;
unsigned isoc_interval;
unsigned isoc_maxpacket;
unsigned isoc_mult;
unsigned isoc_maxburst;
unsigned bulk_buflen;
unsigned qlen;
unsigned ss_bulk_qlen;
unsigned ss_iso_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;
unsigned bulk_qlen;
unsigned iso_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;
};
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 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 */
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