/* SPDX-License-Identifier: GPL-2.0 */
/*
 * u_uac1.h - Utility definitions for UAC1 function
 *
 * Copyright (C) 2016 Ruslan Bilovol <ruslan.bilovol@gmail.com>
 */

#ifndef __U_UAC1_H
#define __U_UAC1_H

#include <linux/usb/composite.h>
#include "uac_common.h"

#define UAC1_OUT_EP_MAX_PACKET_SIZE     200
#define UAC1_DEF_CCHMASK        0x3
#define UAC1_DEF_CSRATE         48000
#define UAC1_DEF_CSSIZE         2
#define UAC1_DEF_PCHMASK        0x3
#define UAC1_DEF_PSRATE         48000
#define UAC1_DEF_PSSIZE         2
#define UAC1_DEF_REQ_NUM        2
#define UAC1_DEF_INT_REQ_NUM    10

#define UAC1_DEF_MUTE_PRESENT   1
#define UAC1_DEF_VOLUME_PRESENT 1
#define UAC1_DEF_MIN_DB         (-100*256)      /* -100 dB */
#define UAC1_DEF_MAX_DB         0               /* 0 dB */
#define UAC1_DEF_RES_DB         (1*256) /* 1 dB */


struct f_uac1_opts {
        struct usb_function_instance    func_inst;
        int                             c_chmask;
        int                             c_srates[UAC_MAX_RATES];
        int                             c_ssize;
        int                             p_chmask;
        int                             p_srates[UAC_MAX_RATES];
        int                             p_ssize;

        bool                    p_mute_present;
        bool                    p_volume_present;
        s16                             p_volume_min;
        s16                             p_volume_max;
        s16                             p_volume_res;

        bool                    c_mute_present;
        bool                    c_volume_present;
        s16                             c_volume_min;
        s16                             c_volume_max;
        s16                             c_volume_res;

        int                             req_number;
        unsigned                        bound:1;

        char                    function_name[USB_MAX_STRING_LEN];

        char                    p_it_name[USB_MAX_STRING_LEN];
        char                    p_it_ch_name[USB_MAX_STRING_LEN];
        char                    p_ot_name[USB_MAX_STRING_LEN];
        char                    p_fu_vol_name[USB_MAX_STRING_LEN];

        char                    c_it_name[USB_MAX_STRING_LEN];
        char                    c_it_ch_name[USB_MAX_STRING_LEN];
        char                    c_ot_name[USB_MAX_STRING_LEN];
        char                    c_fu_vol_name[USB_MAX_STRING_LEN];

        struct mutex                    lock;
        int                             refcnt;
};

#endif /* __U_UAC1_H */