drivers/usb/gadget/function/u_uac1.h

   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 */