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#ifndef __HW_EQ_H
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#define __HW_EQ_H
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#include "generic/typedef.h"
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#include "generic/list.h"
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#include "os/os_api.h"
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#include "effects/eq_func_define.h"
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#include "system/spinlock.h"
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enum { //运行模式
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NORMAL = 0, //正常模式
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MONO, //单声道模式
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STEREO //立体声模式
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};
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enum { //输出数据类型
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DATO_SHORT = 0, //short
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DATO_INT, //int
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DATO_FLOAT //float
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};
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enum { //输入数据类型
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DATI_SHORT = 0, //short
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DATI_INT, // int
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DATI_FLOAT //float
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};
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enum { //输入数据存放模式
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BLOCK_DAT_IN = 0, //块模式，例如输入数据是2通道，先存放完第1通道的所有数据，再存放第2通道的所有数据
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SEQUENCE_DAT_IN, //序列模式，例如输入数据是2通道，先存放第通道的第一个数据，再存放第2个通道的第一个数据，以此类推。
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};
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enum { //输出数据存放模式
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BLOCK_DAT_OUT = 0,//块模式，例如输出数据是2通道，先存放完第1通道的所有数据，再存放第2通道的所有数据
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SEQUENCE_DAT_OUT, //序列模式，例如输入数据是2通道，先存放第通道的第一个数据，再存放第2个通道的第一个数据，以此类推。
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};
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/*eq IIR type*/
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typedef enum {
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EQ_IIR_TYPE_HIGH_PASS = 0x00,
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EQ_IIR_TYPE_LOW_PASS,
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EQ_IIR_TYPE_BAND_PASS,
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EQ_IIR_TYPE_HIGH_SHELF,
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EQ_IIR_TYPE_LOW_SHELF,
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EQ_IIR_TYPE_HIGH_SHELF_Q_TYPE,
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EQ_IIR_TYPE_LOW_SHELF_Q_TYPE,
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EQ_IIR_TYPE_HIGH_PASS_ADVANCE,//在gain位置存阶数，0~6阶级，0：disbale
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EQ_IIR_TYPE_LOW_PASS_ADVANCE,//在gain位置存阶数，0~6阶级，0：disbale
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} EQ_IIR_TYPE;
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struct eq_seg_info {
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u16 index;
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u16 iir_type; ///<EQ_IIR_TYPE
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int freq;
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float gain;
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float q;
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};
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struct eq_coeff_info {
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u8 nsection; //eq段数
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u8 no_coeff; //不是滤波系数
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#ifdef CONFIG_EQ_NO_USE_COEFF_TABLE
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u32 sr; //采样率
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#endif
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float *L_coeff;
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float *R_coeff;
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float L_gain;
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float R_gain;
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float *N_coeff[8];
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float N_gain[8];
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};
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struct hw_eq_ch;
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struct hw_eq_cfg {
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u16 irq_index;
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u8 hw_section;
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u8 cpu_section;
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u32 hw_ram_addr;
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u32 cpu_ram_addr;
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int hw_ram_size;
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// JL_EQ_TypeDef *regs;
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void (*irq_handler)(void);
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};
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struct hw_eq {
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struct list_head head; //链表头
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struct list_head frame_head; //数据帧链表头
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volatile struct hw_eq_ch *cur_ch; //当前需要处理的eq通道
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volatile struct hw_eq_cfg *cfg; //硬件寄存器相关配置
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u32 core;
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/*****增加eq name标识，用于申请时钟数*/
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u32 cnt;
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/*连续的dma_buf, 每个硬件都有一块，每次以最大使用量做申请*/
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s32 *dma_addr;
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s32 dma_len;//byte
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};
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enum {
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HW_EQ_CMD_CLEAR_MEM = 0xffffff00,
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HW_EQ_CMD_CLEAR_MEM_L,
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HW_EQ_CMD_CLEAR_MEM_R,
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};
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struct hw_eq_handler {
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int (*eq_probe)(struct hw_eq_ch *);
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int (*eq_output)(struct hw_eq_ch *, s16 *, u16);
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int (*eq_post)(struct hw_eq_ch *);
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int (*eq_input)(struct hw_eq_ch *, void **, void **);
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};
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struct hw_eq_info {
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unsigned char run_mode; //0按照输入的数据排布方式 ，输出数据 1:单入多出， 2：立体声入多出
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unsigned char in_mode; //输入数据的位宽 0：short 1:int 2:float
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unsigned char out_mode; //输出数据的位宽 0：short 1:int 2:float
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unsigned char out_channels; //输出通道数
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unsigned char data_in_mode; //输入数据存放模式
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unsigned char data_out_mode; //输入数据存放模式
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};
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struct hw_eq_ch {
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unsigned char updata; //更新参数以及中间数据
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unsigned char updata_coeff_only; //只更新参数，不更新中间数据
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unsigned char no_wait; //是否是异步eq处理 0：同步的eq 1：异步的eq
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unsigned char channels; //输入通道数
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unsigned char nsection; //eq段数
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unsigned char no_coeff; // 非滤波系数
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volatile unsigned char active; //已启动eq处理 1：busy 0:处理结束
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volatile unsigned char need_run; //多eq同时使用时，未启动成功的eq，是否需要重新唤醒处理 1：需要 0：否
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unsigned char run_mode; //0按照输入的数据排布方式 ，输出数据 1:单入多出， 2：立体声入多出
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unsigned char in_mode; //输入数据的位宽 0：short 1:int 2:float
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unsigned char out_32bit; //输出数据的位宽 0：short 1:int 2:float
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unsigned char out_channels; //输出通道数
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unsigned char data_in_mode; //输入数据存放模式
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unsigned char data_out_mode; //输入数据存放模式
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float *L_coeff;
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float *R_coeff;
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float L_gain;
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float R_gain;
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float *N_coeff[8];
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float N_gain[8];
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float *eq_LRmem;
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s16 *out_buf;
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s16 *in_buf;
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int in_len;
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void *priv;
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volatile OS_SEM sem;
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struct list_head entry;
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struct hw_eq *eq;
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const struct hw_eq_handler *eq_handler;
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void *irq_priv; //eq管理层传入的私有指针
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void (*irq_callback)(void *priv);//需要eq中断执行的回调函数
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void *eq_ch;
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int (*irq_eq_process)(void *eq_ch, void *indata, void *outdata, int inlen);
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struct list_head frame_entry;
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/*****增加eq name标识，用于申请时钟数*/
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char name[8];
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};
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//系数计算子函数
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/*
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fc: 低通滤波器-3dB衰减频点
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fs: 采样率
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nSOS: 生成nSOS阶IIR
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coeff: 输出系数地址 （ 大小为 ((nSOS & 1) + (nSOS >> 1))*5 , 顺序是按照硬件EQ摆放了 )
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段数：((nSOS & 1) + (nSOS >> 1))*/
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/*
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* 多阶级低通滤波器
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fc: 低通滤波器-3dB衰减频点
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fs: 采样率
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nSOS: 生成多少个2阶IIR
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coeff: 输出系数地址 （ 大小为 nSOS*5 , 顺序是按照硬件EQ摆放了 )*/
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extern void butterworth_lp_design(int fc, int fs, int nSOS, float *coeff);
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/*
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fc: 通滤波器-3dB衰减频点
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fs: 采样率
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nSOS: 生成nSOS阶IIR
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coeff: 输出系数地址 （ 大小为((nSOS & 1) + (nSOS >> 1))*5 , 顺序是按照硬件EQ摆放了 )
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段数：((nSOS & 1) + (nSOS >> 1))*/
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extern void butterworth_hp_design(int fc, int fs, int nSOS, float *coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 低通滤波器
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@param fc:中心截止频率
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@param fs:采样率
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@param quality_factor:q值
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@param coeff:计算后，系数输出地址
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern void design_lp(int fc, int fs, float quality_factor, float *coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 高通滤波器
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@param fc:中心截止频率
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@param fs:采样率
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@param quality_factor:q值
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@param coeff:计算后，系数输出地址
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern void design_hp(int fc, int fs, float quality_factor, float *coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 带通滤波器
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@param fc:中心截止频率
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@param fs:采样率
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@param gain:增益
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@param quality_factor:q值
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@param coeff:计算后，系数输出地址
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern void design_pe(int fc, int fs, float gain, float quality_factor, float *coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 低频搁架式滤波器
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@param fc:中心截止频率
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@param fs:采样率
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@param gain:增益
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@param quality_factor:q值
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@param coeff:计算后，系数输出地址
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern void design_ls(int fc, int fs, float gain, float quality_factor, float *coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 高频搁架式滤波器
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@param fc:中心截止频率
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@param fs:采样率
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@param gain:增益
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@param quality_factor:q值
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@param coeff:计算后，系数输出地址
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern void design_hs(int fc, int fs, float gain, float quality_factor, float *coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 滤波器系数检查
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@param coeff:滤波器系数
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern int eq_stable_check(float *coeff);
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float eq_db2mag(float x);
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/*----------------------------------------------------------------------------*/
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/**@brief 获取直通的滤波器系数
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@param coeff:滤波器系数
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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extern void eq_get_AllpassCoeff(void *Coeff);
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/*----------------------------------------------------------------------------*/
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/**@brief 在EQ中断中调用
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@param *eq:句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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void audio_hw_eq_irq_handler(struct hw_eq *eq);
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/*----------------------------------------------------------------------------*/
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/**@brief EQ初始化
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@param *eq:句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_init(struct hw_eq *eq, u32 eq_section_num);
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/*----------------------------------------------------------------------------*/
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/**@brief 打开一个通道
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@param *ch:通道句柄
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@param *eq:句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_ch_open(struct hw_eq_ch *ch, struct hw_eq *eq);
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/*----------------------------------------------------------------------------*/
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/**@brief 设置回调接口
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@param *ch:通道句柄
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@param *handler:回调的句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_ch_set_handler(struct hw_eq_ch *ch, struct hw_eq_handler *handler);
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//
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/*----------------------------------------------------------------------------*/
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/**@brief 设置通道基础信息
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@param *ch:通道句柄
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@param channels:通道数
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@param out_32bit:是否输出32bit位宽数据 1：是 0：16bit位宽
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_ch_set_info(struct hw_eq_ch *ch, u8 channels, u8 out_32bit);
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int audio_hw_eq_ch_set_info_new(struct hw_eq_ch *ch, struct hw_eq_info *info);
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/*----------------------------------------------------------------------------*/
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/**@brief 设置硬件转换系数
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@param *ch:通道句柄
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@param *info:系数、增益等信息
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_ch_set_coeff(struct hw_eq_ch *ch, struct eq_coeff_info *info);
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/*----------------------------------------------------------------------------*/
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/**@brief 启动一次转换
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@param *ch:eq句柄
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@param *input:输入数据地址
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@param *output:输出数据地址
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@param len:输入数据长度
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_ch_start(struct hw_eq_ch *ch, void *input, void *output, int len);
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/*----------------------------------------------------------------------------*/
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/**@brief 关闭一个通道
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@param *ch:eq句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_ch_close(struct hw_eq_ch *ch);
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/*----------------------------------------------------------------------------*/
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/**@brief 获取eq是否正在运行状态
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@param *ch:eq句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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int audio_hw_eq_is_running(struct hw_eq *eq);
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void audio_hw_eq_spin_lock(struct hw_eq *eq);
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void audio_hw_eq_spin_unlock(struct hw_eq *eq);
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void design_ls_Q(int fc, int fs, float gain, float quality_factor, float *coeff);
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void design_hs_Q(int fc, int fs, float gain, float quality_factor, float *coeff);
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#endif /*__HW_EQ_H*/
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