1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * u_uac2.h
4 *
5 * Utility definitions for UAC2 function
6 *
7 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
8 * http://www.samsung.com
9 *
10 * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
11 */
12
13#ifndef U_UAC2_H
14#define U_UAC2_H
15
16#include <linux/usb/composite.h>
17#include "uac_common.h"
18
19#define UAC2_DEF_PCHMASK 0x3
20#define UAC2_DEF_PSRATE 48000
21#define UAC2_DEF_PSSIZE 2
22#define UAC2_DEF_PHSBINT 0
23#define UAC2_DEF_CCHMASK 0x3
24#define UAC2_DEF_CSRATE 64000
25#define UAC2_DEF_CSSIZE 2
26#define UAC2_DEF_CHSBINT 0
27#define UAC2_DEF_CSYNC USB_ENDPOINT_SYNC_ASYNC
28
29#define UAC2_DEF_MUTE_PRESENT 1
30#define UAC2_DEF_VOLUME_PRESENT 1
31#define UAC2_DEF_MIN_DB (-100*256) /* -100 dB */
32#define UAC2_DEF_MAX_DB 0 /* 0 dB */
33#define UAC2_DEF_RES_DB (1*256) /* 1 dB */
34
35#define UAC2_DEF_REQ_NUM 2
36#define UAC2_DEF_INT_REQ_NUM 10
37
38#define UAC2_DEF_P_TERM_TYPE 0x301
39 /* UAC_OUTPUT_TERMINAL_SPEAKER */
40#define UAC2_DEF_C_TERM_TYPE 0x201
41 /* UAC_INPUT_TERMINAL_MICROPHONE*/
42
43struct f_uac2_opts {
44 struct usb_function_instance func_inst;
45 int p_chmask;
46 int p_srates[UAC_MAX_RATES];
47 int p_ssize;
48 u8 p_hs_bint;
49 int c_chmask;
50 int c_srates[UAC_MAX_RATES];
51 int c_ssize;
52 int c_sync;
53 u8 c_hs_bint;
54
55 bool p_mute_present;
56 bool p_volume_present;
57 s16 p_volume_min;
58 s16 p_volume_max;
59 s16 p_volume_res;
60
61 bool c_mute_present;
62 bool c_volume_present;
63 s16 c_volume_min;
64 s16 c_volume_max;
65 s16 c_volume_res;
66
67 int req_number;
68 int fb_max;
69 bool bound;
70
71 char function_name[USB_MAX_STRING_LEN];
72 char if_ctrl_name[USB_MAX_STRING_LEN];
73 char clksrc_in_name[USB_MAX_STRING_LEN];
74 char clksrc_out_name[USB_MAX_STRING_LEN];
75
76 char p_it_name[USB_MAX_STRING_LEN];
77 char p_it_ch_name[USB_MAX_STRING_LEN];
78 char p_ot_name[USB_MAX_STRING_LEN];
79 char p_fu_vol_name[USB_MAX_STRING_LEN];
80
81 char c_it_name[USB_MAX_STRING_LEN];
82 char c_it_ch_name[USB_MAX_STRING_LEN];
83 char c_ot_name[USB_MAX_STRING_LEN];
84 char c_fu_vol_name[USB_MAX_STRING_LEN];
85
86 s16 p_terminal_type;
87 s16 c_terminal_type;
88
89 struct mutex lock;
90 int refcnt;
91};
92
93#endif
94

source code of linux/drivers/usb/gadget/function/u_uac2.h