LXR linux/sound/pci/ctxfi/ctmixer.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
   4 *
   5 * @File        ctmixer.h
   6 *
   7 * @Brief
   8 * This file contains the definition of the mixer device functions.
   9 *
  10 * @Author      Liu Chun
  11 * @Date        Mar 28 2008
  12 */
  13
  14#ifndef CTMIXER_H
  15#define CTMIXER_H
  16
  17#include "ctatc.h"
  18#include "ctresource.h"
  19
  20#define INIT_VOL        0x1c00
  21
  22enum MIXER_PORT_T {
  23        MIX_WAVE_FRONT,
  24        MIX_WAVE_REAR,
  25        MIX_WAVE_CENTLFE,
  26        MIX_WAVE_SURROUND,
  27        MIX_SPDIF_OUT,
  28        MIX_PCMO_FRONT,
  29        MIX_MIC_IN,
  30        MIX_LINE_IN,
  31        MIX_SPDIF_IN,
  32        MIX_PCMI_FRONT,
  33        MIX_PCMI_REAR,
  34        MIX_PCMI_CENTLFE,
  35        MIX_PCMI_SURROUND,
  36
  37        NUM_MIX_PORTS
  38};
  39
  40/* alsa mixer descriptor */
  41struct ct_mixer {
  42        struct ct_atc *atc;
  43
  44        void **amixers;         /* amixer resources for volume control */
  45        void **sums;            /* sum resources for signal collection */
  46        unsigned int switch_state; /* A bit-map to indicate state of switches */
  47
  48        int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
  49                                  struct rsc **rleft, struct rsc **rright);
  50
  51        int (*set_input_left)(struct ct_mixer *mixer,
  52                              enum MIXER_PORT_T type, struct rsc *rsc);
  53        int (*set_input_right)(struct ct_mixer *mixer,
  54                               enum MIXER_PORT_T type, struct rsc *rsc);
  55#ifdef CONFIG_PM_SLEEP
  56        int (*resume)(struct ct_mixer *mixer);
  57#endif
  58};
  59
  60int ct_alsa_mix_create(struct ct_atc *atc,
  61                       enum CTALSADEVS device,
  62                       const char *device_name);
  63int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
  64int ct_mixer_destroy(struct ct_mixer *mixer);
  65
  66#endif /* CTMIXER_H */
  67