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 13 #define UAC1_OUT_EP_MAX_PACKET_SIZE 200 14 #define UAC1_DEF_CCHMASK 0x3 15 #define UAC1_DEF_CSRATE 48000 16 #define UAC1_DEF_CSSIZE 2 17 #define UAC1_DEF_PCHMASK 0x3 18 #define UAC1_DEF_PSRATE 48000 19 #define UAC1_DEF_PSSIZE 2 20 #define UAC1_DEF_REQ_NUM 2 21 22 23 struct f_uac1_opts { 24 struct usb_function_instance func_inst; 25 int c_chmask; 26 int c_srate; 27 int c_ssize; 28 int p_chmask; 29 int p_srate; 30 int p_ssize; 31 int req_number; 32 unsigned bound:1; 33 34 struct mutex lock; 35 int refcnt; 36 }; 37 38 #endif /* __U_UAC1_H */ 39