1 /* 2 * Copyright (c) 2006-2021, RT-Thread Development Team 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Change Logs: 7 * Date Author Notes 8 * 2018-05-25 RT-Thread the first version 9 */ 10 11 #ifndef __DRV_AC97_H__ 12 #define __DRV_AC97_H__ 13 14 /* Register offsets */ 15 #define AC97_RESET 0x00 16 #define AC97_MASTER 0x02 17 #define AC97_HEADPHONE 0x04 18 #define AC97_MASTER_MONO 0x06 19 #define AC97_MASTER_TONE 0x08 20 #define AC97_PC_BEEP 0x0A //mixer volume 21 #define AC97_PHONE 0x0C 22 #define AC97_MIC 0x0E //qwert db 23 #define AC97_LINE 0x10 24 #define AC97_CD 0x12 25 #define AC97_VIDEO 0x14 26 #define AC97_AUX 0x16 27 #define AC97_PCM 0x18 28 #define AC97_REC_SEL 0x1A //0 represent mic 29 #define AC97_REC_GAIN 0x1C 30 #define AC97_REC_GAIN_MIC 0x1E 31 #define AC97_GENERAL_PURPOSE 0x20 32 #define AC97_3D_CONTROL 0x22 33 #define AC97_INT_PAGING 0x24 //qwert 34 #define AC97_POWERDOWN 0x26 35 #define AC97_PCM_FRONT_DAC_RATE 0x2c /* PCM Front DAC Rate */ 36 #define AC97_PCM_SURR_DAC_RATE 0x2e /* PCM Surround DAC Rate */ 37 #define AC97_PCM_LFE_DAC_RATE 0x30 /* PCM LFE DAC Rate */ 38 #define AC97_PCM_LR_ADC_RATE 0x32 /* PCM LR ADC Rate */ 39 #define AC97_PCM_MIC_ADC_RATE 0x34 /* PCM MIC ADC Rate */ 40 #define AC97_DAC_SLOT_MAP 0x6C 41 #define AC97_ADC_SLOT_MAP 0x6E 42 43 void ac97_reset(void); 44 rt_err_t ac97_set_vol(int vol); 45 int ac97_get_vol(void); 46 rt_err_t ac97_set_rate(int rate); 47 int ac97_get_rate(void); 48 49 #endif 50