drivers/usb/gadget/function/u_uac2.h

   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
  18 #define UAC2_DEF_PCHMASK 0x3
  19 #define UAC2_DEF_PSRATE 48000
  20 #define UAC2_DEF_PSSIZE 2
  21 #define UAC2_DEF_CCHMASK 0x3
  22 #define UAC2_DEF_CSRATE 64000
  23 #define UAC2_DEF_CSSIZE 2
  24 #define UAC2_DEF_REQ_NUM 2
  25
  26 struct f_uac2_opts {
  27         struct usb_function_instance    func_inst;
  28         int                             p_chmask;
  29         int                             p_srate;
  30         int                             p_ssize;
  31         int                             c_chmask;
  32         int                             c_srate;
  33         int                             c_ssize;
  34         int                             req_number;
  35         bool                            bound;
  36
  37         struct mutex                    lock;
  38         int                             refcnt;
  39 };
  40
  41 #endif