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 #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
  43 struct 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[32];
  72
  73         s16                             p_terminal_type;
  74         s16                             c_terminal_type;
  75
  76         struct mutex                    lock;
  77         int                             refcnt;
  78 };
  79
  80 #endif