1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>sata_link_hardreset</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="libATA Developer's Guide"><link rel="up" href="libataExt.html" title="Chapter&#160;4.&#160;libata Library"><link rel="prev" href="API-ata-std-prereset.html" title="ata_std_prereset"><link rel="next" href="API-sata-std-hardreset.html" title="sata_std_hardreset"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">sata_link_hardreset</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ata-std-prereset.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;4.&#160;libata Library</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-sata-std-hardreset.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-sata-link-hardreset"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sata_link_hardreset &#8212; 
2     reset link via SATA phy reset
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sata_link_hardreset </b>(</code></td><td>struct ata_link * <var class="pdparam">link</var>, </td></tr><tr><td>&#160;</td><td>const unsigned long * <var class="pdparam">timing</var>, </td></tr><tr><td>&#160;</td><td>unsigned long <var class="pdparam">deadline</var>, </td></tr><tr><td>&#160;</td><td>bool * <var class="pdparam">online</var>, </td></tr><tr><td>&#160;</td><td>int (*<var class="pdparam">check_ready</var>)
4     <code>(</code>struct ata_link *<code>)</code><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123659948"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>link</code></em></span></dt><dd><p>
5     link to reset
6    </p></dd><dt><span class="term"><em class="parameter"><code>timing</code></em></span></dt><dd><p>
7     timing parameters { interval, duratinon, timeout } in msec
8    </p></dd><dt><span class="term"><em class="parameter"><code>deadline</code></em></span></dt><dd><p>
9     deadline jiffies for the operation
10    </p></dd><dt><span class="term"><em class="parameter"><code>online</code></em></span></dt><dd><p>
11     optional out parameter indicating link onlineness
12    </p></dd><dt><span class="term"><em class="parameter"><code>check_ready</code></em></span></dt><dd><p>
13     optional callback to check link readiness
14    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123665556"></a><h2>Description</h2><p>
15   SATA phy-reset <em class="parameter"><code>link</code></em> using DET bits of SControl register.
16   After hardreset, link readiness is waited upon using
17   <code class="function">ata_wait_ready</code> if <em class="parameter"><code>check_ready</code></em> is specified.  LLDs are
18   allowed to not specify <em class="parameter"><code>check_ready</code></em> and wait itself after this
19   function returns.  Device classification is LLD's
20   responsibility.
21   </p><p>
22
23   *<em class="parameter"><code>online</code></em> is set to one iff reset succeeded and <em class="parameter"><code>link</code></em> is online
24   after reset.
25</p></div><div class="refsect1"><a name="idp1123668452"></a><h2>LOCKING</h2><p>
26   Kernel thread context (may sleep)
27</p></div><div class="refsect1"><a name="idp1123669076"></a><h2>RETURNS</h2><p>
28   0 on success, -errno otherwise.
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