HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1st Edition

Technical Reference Guide www.hp.com 5-31
Input/Output Interfaces
Audio Control
The audio subsystem is controlled through a set of verb commands listed in Table 5-23.
NOTE:
Refer to vendor data sheet for more information.
Get Converter Format
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.
En. Mask
F19h
Set Processing State 703h Get Unsol. Resp. Cntrl. F08h Set GPIO Unsol. Resp. En.
Mask
719h
Get Coefficient Index 00Dh Set Unsol. Resp. Cntrl. 708h Function Reset 7FFh
Set Coefficient Index 005h Get Pin Sense F09h Get Digital Converter
Control
F0Dh
Get Processing
Coefficient
00Ch Execute Pin Sense 709h Set Digital Conv. Cntrl. 1 70Dh
Set Processing
Coefficient
004h Get Default Config. F1Ch Set Digital Conv. Cntrl. 2 70Eh
Get Amplifier Gain 00Bh Set Default Config. 71C-71F
h
Get EAPD Enable F0Ch
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 -- --