Android under debug sound card driver wm8960 Introduction two

Three, Linput input channel Introduction

The main configuration for Linput is as follows:

The R32 bit8 (LMN1) is connected to the PGA by 1:LINPUT1;

R00 bit7 (linmute) 0: Mute is forbidden;

R25 bit5 (AINL) 1:PGA enable;

R47 bit5 (lmic) to 1:left Boost mixer enable;

R32 bit3 (LMIC2B) 1:boost connected to left Boost Mixer.

Iv. Introduction of output channel

the main configuration for ouput is as follows:

R34 bit8 (Ld2lo) 1: LDAC is connected to left Output Mixer;

R47 bit3 (lomix) 1:left Output mixer Enable.

V. Introduction of Class D

The wm8960 has a class-D amplification function that can directly drive a 8-euro BTL loudspeaker.

the main configuration for Class D is as follows:

R49 Bit[7:6] (spk_op_en) 11: Enable the Class D loudspeaker left and right output;

R51 Bit[5:3] (dcgain) 011: magnification;

R51 bit[2:0] (acgain) 011: magnification.

Android under debug sound card driver wm8960 Introduction two