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 38struct f_uac2_opts { 39 struct usb_function_instance func_inst; 40 int p_chmask; 41 int p_srates[UAC_MAX_RATES]; 42 int p_ssize; 43 u8 p_hs_bint; 44 int c_chmask; 45 int c_srates[UAC_MAX_RATES]; 46 int c_ssize; 47 int c_sync; 48 u8 c_hs_bint; 49 50 bool p_mute_present; 51 bool p_volume_present; 52 s16 p_volume_min; 53 s16 p_volume_max; 54 s16 p_volume_res; 55 56 bool c_mute_present; 57 bool c_volume_present; 58 s16 c_volume_min; 59 s16 c_volume_max; 60 s16 c_volume_res; 61 62 int req_number; 63 int fb_max; 64 bool bound; 65 66 char function_name[32]; 67 68 struct mutex lock; 69 int refcnt; 70}; 71 72#endif 73