rtt-f030/bsp/qemu-vexpress-a9/drivers/audio/drv_ac97.h

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2018-05-29 10:55:42 +08:00
/*
* File : drv_ac97.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2018-05-25 RT-Thread the first version
*/
#ifndef __DRV_AC97_H__
#define __DRV_AC97_H__
/* Register offsets */
#define AC97_RESET 0x00
#define AC97_MASTER 0x02
#define AC97_HEADPHONE 0x04
#define AC97_MASTER_MONO 0x06
#define AC97_MASTER_TONE 0x08
#define AC97_PC_BEEP 0x0A //mixer volume
#define AC97_PHONE 0x0C
#define AC97_MIC 0x0E //qwert db
#define AC97_LINE 0x10
#define AC97_CD 0x12
#define AC97_VIDEO 0x14
#define AC97_AUX 0x16
#define AC97_PCM 0x18
#define AC97_REC_SEL 0x1A //0 represent mic
#define AC97_REC_GAIN 0x1C
#define AC97_REC_GAIN_MIC 0x1E
#define AC97_GENERAL_PURPOSE 0x20
#define AC97_3D_CONTROL 0x22
#define AC97_INT_PAGING 0x24 //qwert
#define AC97_POWERDOWN 0x26
#define AC97_PCM_FRONT_DAC_RATE 0x2c /* PCM Front DAC Rate */
#define AC97_PCM_SURR_DAC_RATE 0x2e /* PCM Surround DAC Rate */
#define AC97_PCM_LFE_DAC_RATE 0x30 /* PCM LFE DAC Rate */
#define AC97_PCM_LR_ADC_RATE 0x32 /* PCM LR ADC Rate */
#define AC97_PCM_MIC_ADC_RATE 0x34 /* PCM MIC ADC Rate */
#define AC97_DAC_SLOT_MAP 0x6C
#define AC97_ADC_SLOT_MAP 0x6E
void ac97_reset(void);
rt_err_t ac97_set_vol(int vol);
int ac97_get_vol(void);
rt_err_t ac97_set_rate(int rate);
int ac97_get_rate(void);
#endif