<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML ><HEAD ><TITLE >z8530_interrupt</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Z8530 Programming Guide" HREF="book1.html"><LINK REL="UP" TITLE="Public Functions Provided" HREF="c95.html"><LINK REL="PREVIOUS" TITLE="Public Functions Provided" HREF="c95.html"><LINK REL="NEXT" TITLE="z8530_sync_open" HREF="r138.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Z8530 Programming Guide</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="c95.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="r138.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="AEN97" ></A ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >z8530_interrupt</SPAN ></SPAN ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN101" ></A ><H2 >Name</H2 >z8530_interrupt -- Handle an interrupt from a Z8530 </DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN104" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN106" ></A ><P ></P ><P ><CODE ><CODE CLASS="FUNCDEF" >void <TT CLASS="FUNCTION" >z8530_interrupt </TT ></CODE >(int <TT CLASS="PARAMETER" ><I >irq</I ></TT >, void * <TT CLASS="PARAMETER" ><I >dev_id</I ></TT >, struct pt_regs * <TT CLASS="PARAMETER" ><I >regs</I ></TT >);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN116" ></A ><H2 >Arguments</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="PARAMETER" ><I >irq</I ></TT ></DT ><DD ><P > Interrupt number </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >dev_id</I ></TT ></DT ><DD ><P > The Z8530 device that is interrupting. </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >regs</I ></TT ></DT ><DD ><P > unused </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN134" ></A ><H2 >Description</H2 ><P > A Z85[2]30 device has stuck its hand in the air for attention. We scan both the channels on the chip for events and then call the channel specific call backs for each channel that has events. We have to use callback functions because the two channels can be in different modes. </P ><P > Locking is done for the handlers. Note that locking is done at the chip level (the 5uS delay issue is per chip not per channel). c->lock for both channels points to dev->lock </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="c95.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="book1.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="r138.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Public Functions Provided</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c95.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >z8530_sync_open</SPAN ></SPAN ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >