1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * u_uac1.h - Utility definitions for UAC1 function
4 *
5 * Copyright (C) 2016 Ruslan Bilovol <ruslan.bilovol@gmail.com>
6 */
7
8#ifndef __U_UAC1_H
9#define __U_UAC1_H
10
11#include <linux/usb/composite.h>
12#include "uac_common.h"
13
14#define UAC1_OUT_EP_MAX_PACKET_SIZE	200
15#define UAC1_DEF_CCHMASK	0x3
16#define UAC1_DEF_CSRATE		48000
17#define UAC1_DEF_CSSIZE		2
18#define UAC1_DEF_PCHMASK	0x3
19#define UAC1_DEF_PSRATE		48000
20#define UAC1_DEF_PSSIZE		2
21#define UAC1_DEF_REQ_NUM	2
22#define UAC1_DEF_INT_REQ_NUM	10
23
24#define UAC1_DEF_MUTE_PRESENT	1
25#define UAC1_DEF_VOLUME_PRESENT 1
26#define UAC1_DEF_MIN_DB		(-100*256)	/* -100 dB */
27#define UAC1_DEF_MAX_DB		0		/* 0 dB */
28#define UAC1_DEF_RES_DB		(1*256)	/* 1 dB */
29
30
31struct f_uac1_opts {
32	struct usb_function_instance	func_inst;
33	int				c_chmask;
34	int				c_srates[UAC_MAX_RATES];
35	int				c_ssize;
36	int				p_chmask;
37	int				p_srates[UAC_MAX_RATES];
38	int				p_ssize;
39
40	bool			p_mute_present;
41	bool			p_volume_present;
42	s16				p_volume_min;
43	s16				p_volume_max;
44	s16				p_volume_res;
45
46	bool			c_mute_present;
47	bool			c_volume_present;
48	s16				c_volume_min;
49	s16				c_volume_max;
50	s16				c_volume_res;
51
52	int				req_number;
53	unsigned			bound:1;
54
55	char			function_name[32];
56
57	struct mutex			lock;
58	int				refcnt;
59};
60
61#endif /* __U_UAC1_H */
62