1 /*
2  * u_uac1.h - Utility definitions for UAC1 function
3  *
4  * Copyright (C) 2016 Ruslan Bilovol <ruslan.bilovol@gmail.com>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 
11 #ifndef __U_UAC1_H
12 #define __U_UAC1_H
13 
14 #include <linux/usb/composite.h>
15 
16 #define UAC1_OUT_EP_MAX_PACKET_SIZE	200
17 #define UAC1_DEF_CCHMASK	0x3
18 #define UAC1_DEF_CSRATE		48000
19 #define UAC1_DEF_CSSIZE		2
20 #define UAC1_DEF_PCHMASK	0x3
21 #define UAC1_DEF_PSRATE		48000
22 #define UAC1_DEF_PSSIZE		2
23 #define UAC1_DEF_REQ_NUM	2
24 
25 
26 struct f_uac1_opts {
27 	struct usb_function_instance	func_inst;
28 	int				c_chmask;
29 	int				c_srate;
30 	int				c_ssize;
31 	int				p_chmask;
32 	int				p_srate;
33 	int				p_ssize;
34 	int				req_number;
35 	unsigned			bound:1;
36 
37 	struct mutex			lock;
38 	int				refcnt;
39 };
40 
41 #endif /* __U_UAC1_H */
42