dmic.h

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/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright(c) 2024 Intel Corporation.
 */
 
#ifndef __SOF_IPC4_DMIC_H__
#define __SOF_IPC4_DMIC_H__
 
#include <stdint.h>
#include <stddef.h>
#include <sof/drivers/dmic.h>
#include "gateway.h"
 
#define DMIC_SET_GAIN_COEFFICIENTS 2
 
#define DMIC_MAX_GAIN_COEFFS_CNT   4
 
union dmic_global_cfg {
    uint32_t clock_on_delay;
 
    struct {
        uint32_t silence_period : 16;
 
        uint32_t fade_in_period : 16;
    } ext_global_cfg;
} __packed __aligned(4);
 
struct dmic_channel_cfg {
    uint32_t out_control; 
};
 
struct dmic_fir_cfg {
    uint32_t fir_control;    
    uint32_t fir_config;     
    uint32_t dc_offset_left;  
    uint32_t dc_offset_rigth; 
    uint32_t out_gain_left;   
    uint32_t out_gain_rigth;  
    uint32_t rsvd_2[2];       
} __packed __aligned(4);
 
struct dmic_pdm_ctrl_cfg {
    uint32_t cic_control;        
    uint32_t cic_config;         
    uint32_t rsvd_0;             
    uint32_t mic_control;        
    uint32_t pdmsm;              
    uint32_t reuse_fir_from_pdm; 
    uint32_t rsvd_1[2];          
    struct dmic_fir_cfg fir_config[2]; 
    uint32_t fir_coeffs[0];      
} __packed __aligned(4);
 
struct dmic_config_blob {
    uint32_t ts_group[4]; 
    union dmic_global_cfg global_cfg; 
    uint32_t channel_ctrl_mask : 8;  
    uint32_t clock_source : 8;       
    uint32_t rsvd : 16;              
    struct dmic_channel_cfg channel_cfg[0]; 
    uint32_t pdm_ctrl_mask;          
    struct dmic_pdm_ctrl_cfg pdm_ctrl_cfg[0]; 
} __packed __aligned(4);
 
struct dmic_config_data {
    union ipc4_gateway_attributes gtw_attributes; 
    struct dmic_config_blob dmic_blob; 
}  __packed __aligned(4);
 
#endif /* __SOF_IPC4_DMIC_H__ */