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