Input/Output Interfaces

Audio Control

The audio subsystem is controlled through a set of verb commands listed in Table 5-23.

Table 5-23.

HD Audio Codec Commands

Verb

Value

Verb

Value

Verb

Value

 

 

 

 

 

 

Get Parameter

F00h

Set Power State

705h

Get GPIO Enable Mask

F16h

 

 

 

 

 

 

Get Connection Select

F01h

Get Conv. Stream Ch.

F06h

Set GPIO Enable Mask

716h

 

 

 

 

 

 

Set Connection Select

701h

Set Conv. Stream Ch.

706h

Get GPIO Direction

F17h

 

 

 

 

 

 

Get Connection List

F02h

Get Pin Widget Cntrl.

F07h

Set GPIO Direction

717h

 

 

 

 

 

 

Get Processing State

F03h

Set Pin Widget Cntrl.

707h

Get GPIO Unsol. Resp.

F19h

 

 

 

 

En. Mask

 

 

 

 

 

 

 

Set Processing State

703h

Get Unsol. Resp. Cntrl.

F08h

Set GPIO Unsol. Resp. En.

719h

 

 

 

 

Mask

 

 

 

 

 

 

 

Get Coefficient Index

00Dh

Set Unsol. Resp. Cntrl.

708h

Function Reset

7FFh

 

 

 

 

 

 

Set Coefficient Index

005h

Get Pin Sense

F09h

Get Digital Converter

F0Dh

 

 

 

 

Control

 

 

 

 

 

 

 

Get Processing

00Ch

Execute Pin Sense

709h

Set Digital Conv. Cntrl. 1

70Dh

Coefficient

 

 

 

 

 

 

 

 

 

 

 

Set Processing

004h

Get Default Config.

F1Ch

Set Digital Conv. Cntrl. 2

70Eh

Coefficient

 

 

 

 

 

 

 

 

 

 

 

Get Amplifier Gain

00Bh

Set Default Config.

71C-71F

Get EAPD Enable

F0Ch

 

 

 

h

 

 

 

 

 

 

 

 

Set Amplifier Gain

003h

Get Beep Generator

F0Ah

Set EAPD Enable

70Ch

 

 

 

 

 

 

Get Converter Format

00Ah

Set Beep Generator

70Ah

Get Volume Knob Widget

FOFh

 

 

 

 

 

 

Set Converter Format

002h

Get GPIO Data

F15h

Set Volume Knob Widget

70Fh

 

 

 

 

 

 

Get Power State

F05h

Set GPIO Data

715h

--

--

 

 

 

 

 

 

NOTE:

Refer to vendor data sheet for more information.

Get Converter Format

 

Technical Reference Guide

www.hp.com

5-31