/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#define AC97_MUTE       0x8080

#define AC97_REG_RESET  0x00
#define         AC97_CAP_MICCHANNEL     (1 << 0)
#define         AC97_CAP_TONE           (1 << 2)
#define         AC97_CAP_SIMSTEREO      (1 << 3)
#define         AC97_CAP_HEADPHONE      (1 << 4)
#define         AC97_CAP_LOUDNESS       (1 << 5)
#define         AC97_CAP_DAC_18         (1 << 6)
#define         AC97_CAP_DAC_20         (1 << 7)
#define         AC97_CAP_ADC_18         (1 << 8)
#define         AC97_CAP_ADC_20         (1 << 9)
#define AC97_MIX_MASTER 0x02
#define AC97_MIX_AUXOUT 0x04
#define AC97_MIX_MONO   0x06
#define AC97_MIX_TONE   0x08
#define AC97_MIX_BEEP   0x0a
#define AC97_MIX_PHONE  0x0c
#define AC97_MIX_MIC    0x0e
#define AC97_MIX_LINE   0x10
#define AC97_MIX_CD     0x12
#define AC97_MIX_VIDEO  0x14
#define AC97_MIX_AUX    0x16
#define AC97_MIX_PCM    0x18
#define AC97_REG_RECSEL 0x1a
#define AC97_MIX_RGAIN  0x1c
#define AC97_MIX_MGAIN  0x1e
#define AC97_REG_GEN    0x20
#define AC97_REG_3D     0x22
#define AC97_REG_POWER  0x26
#define         AC97_POWER_ADC          (1 << 0)
#define         AC97_POWER_DAC          (1 << 1)
#define         AC97_POWER_ANL          (1 << 2)
#define         AC97_POWER_REF          (1 << 3)
#define         AC97_POWER_STATUS       (AC97_POWER_ADC | AC97_POWER_DAC | \
                                         AC97_POWER_REF | AC97_POWER_ANL )
#define AC97_REGEXT_ID          0x28
#define         AC97_EXTCAP_VRA         (1 << 0)
#define         AC97_EXTCAP_DRA         (1 << 1)
#define         AC97_EXTCAP_VRM         (1 << 3)
#define         AC97_EXTCAPS (AC97_EXTCAP_VRA | AC97_EXTCAP_DRA | AC97_EXTCAP_VRM)
#define         AC97_EXTCAP_SDAC        (1 << 7)

#define AC97_REGEXT_STAT        0x2a
#define AC97_REGEXT_FDACRATE    0x2c
#define AC97_REGEXT_SDACRATE    0x2e
#define AC97_REGEXT_LDACRATE    0x30
#define AC97_REGEXT_LADCRATE    0x32
#define AC97_REGEXT_MADCRATE    0x34
#define AC97_MIXEXT_CLFE        0x36
#define AC97_MIXEXT_SURROUND    0x38
#define AC97_REG_ID1    0x7c
#define AC97_REG_ID2    0x7e

#define AC97_F_EAPD_INV         0x00000001
#define AC97_F_RDCD_BUG         0x00000002

#define AC97_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, sizeof(struct kobj))
#define AC97_CREATE(dev, devinfo, cls) ac97_create(dev, devinfo, &cls ## _class)

struct ac97_info;

#include "ac97_if.h"

extern kobj_class_t ac97_getmixerclass(void);

struct ac97_info *ac97_create(device_t dev, void *devinfo, kobj_class_t cls);
void ac97_destroy(struct ac97_info *codec);
void ac97_setflags(struct ac97_info *codec, u_int32_t val);
u_int32_t ac97_getflags(struct ac97_info *codec);
int ac97_setrate(struct ac97_info *codec, int which, int rate);
int ac97_setextmode(struct ac97_info *codec, u_int16_t mode);
u_int16_t ac97_getextmode(struct ac97_info *codec);
u_int16_t ac97_getextcaps(struct ac97_info *codec);
u_int16_t ac97_getcaps(struct ac97_info *codec);
u_int32_t ac97_getsubvendor(struct ac97_info *codec);

u_int16_t ac97_rdcd(struct ac97_info *codec, int reg);
void      ac97_wrcd(struct ac97_info *codec, int reg, u_int16_t val);