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                        <div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/rtp/rtp_debug.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">调试指南</h1><div class="date inPage">17 Dec 2024</div><div style="color: gray;">
                    Read time: 1 minute(s)
                </div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="rtp_debug_guide__section_eg2_rty_21c" data-ofbid="rtp_debug_guide__section_eg2_rty_21c"><h2 class="- topic/title title sectiontitle">调试开关</h2>
            
            <ol class="- topic/ol ol" data-ofbid="d332844e27__20250121171836"><li class="- topic/li li" data-ofbid="d332844e28__20250121171836">
                    <div class="- topic/div div">
                <div class="- topic/p p" data-ofbid="d332844e32__20250121171836">在 SDK 根目录下，执行下列命令，进入 kernel
                    的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_debug_guide__codeblock_wg1_3ml_sdc" data-ofbid="rtp_debug_guide__codeblock_wg1_3ml_sdc">make kernel-menuconfig</pre></div>
                <p class="- topic/p p" data-ofbid="d332844e37__20250121171836">或使用简写命令</p>
                <div class="- topic/p p" data-ofbid="d332844e40__20250121171836">
                    <pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_debug_guide__codeblock_uss_hml_sdc" data-ofbid="rtp_debug_guide__codeblock_uss_hml_sdc">make km</pre>
                </div>
            </div>
                </li><li class="- topic/li li" data-ofbid="d332844e47__20250121171836">
                    <div class="- topic/p p" data-ofbid="d332844e49__20250121171836">在内核配置界面，按如下选择，打开 RTP 模块的 DEBUG
                        选项：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_debug_guide__codeblock_ap3_sty_21c" data-ofbid="rtp_debug_guide__codeblock_ap3_sty_21c">Linux
    Kernel hacking
        ArtInChip Debug
            [*] RTP driver debug</pre></div>
                    <div class="- topic/p p" data-ofbid="d332844e54__20250121171836">打开 DEBUG 选项后：<ul class="- topic/ul ul" id="rtp_debug_guide__ol_ucp_mss_c1c" data-ofbid="rtp_debug_guide__ol_ucp_mss_c1c"><li class="- topic/li li" data-ofbid="d332844e57__20250121171836">
                        <p class="- topic/p p" data-ofbid="d332844e59__20250121171836">驱动以<code class="+ topic/ph pr-d/codeph ph codeph">-O0</code> 编译。</p>
                    </li><li class="- topic/li li" data-ofbid="d332844e65__20250121171836">
                        <p class="- topic/p p" data-ofbid="d332844e67__20250121171836"><span class="+ topic/keyword pr-d/parmname keyword parmname">pr_dbg()</span> 和 <span class="+ topic/keyword pr-d/parmname keyword parmname">dev_dbg()</span> 调试信息会被编译。</p>
                        <div class="- topic/p p" id="rtp_debug_guide__p_wvf_n3w_mdc" data-ofbid="rtp_debug_guide__p_wvf_n3w_mdc">在系统运行时，如果要打印 <span class="+ topic/keyword pr-d/parmname keyword parmname">pr_dbg()</span> 和
                            <span class="+ topic/keyword pr-d/parmname keyword parmname">dev_dbg()</span> 信息，还需要调整 <span class="+ topic/keyword pr-d/parmname keyword parmname">loglevel</span> 为
                                8，可以通过以下两种方式实现：<ul class="- topic/ul ul" id="rtp_debug_guide__ol_vcp_mss_c1c" data-ofbid="rtp_debug_guide__ol_vcp_mss_c1c"><li class="- topic/li li" data-ofbid="d332844e87__20250121171836">
                                    <p class="- topic/p p" data-ofbid="d332844e89__20250121171836">在 <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 中修改
                                            <span class="+ topic/keyword pr-d/parmname keyword parmname">bootargs</span>，增加
                                        <span class="+ topic/keyword pr-d/parmname keyword parmname">“loglevel=8”</span></p>
                                </li><li class="- topic/li li" data-ofbid="d332844e100__20250121171836">
                                    <div class="- topic/p p" data-ofbid="d332844e102__20250121171836">在板子启动到 Linux Shell
                                        后，执行下列命令：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_debug_guide__pre_wcp_mss_c1c" data-ofbid="rtp_debug_guide__pre_wcp_mss_c1c">echo8 &gt; /proc/sys/kernel/printk</pre></div>
                                </li></ul></div>
                    </li></ul></div>
                </li></ol>
        </section><section class="- topic/section section" id="rtp_debug_guide__section_jg2_rty_21c" data-ofbid="rtp_debug_guide__section_jg2_rty_21c"><h2 class="- topic/title title sectiontitle">Sysfs 节点</h2>
            
            <p class="- topic/p p" data-ofbid="d332844e115__20250121171836">在 RTP 初始化成功后，会在 sysfs 中注册生成一个 status 节点，其中打印了当前的 RTP 配置及状态信息：</p>
            <pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_debug_guide__pre_kg2_rty_21c" data-ofbid="rtp_debug_guide__pre_kg2_rty_21c">cat /sys/devices/platform/soc/<span class="hl-number">19252000.</span>rtp/status</pre>
            <pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_debug_guide__codeblock_isy_lcs_sdc" data-ofbid="rtp_debug_guide__codeblock_isy_lcs_sdc">In RTP controller V1.<span class="hl-number">00</span>:
Mode <span class="hl-number">0</span>/<span class="hl-number">2</span>, RTP enale <span class="hl-number">0</span>, Press detect enable0
Manual mode status <span class="hl-number">0</span>
Pressure enable1, max <span class="hl-number">800</span>, x-plate <span class="hl-number">235</span>, y-plate <span class="hl-number">0</span>
Point num: <span class="hl-number">1</span>, Sample period: <span class="hl-number">0</span>, Fuzz: <span class="hl-number">0</span></pre>
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	                            <div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#rtp_debug_guide__section_eg2_rty_21c" data-tocid="rtp_debug_guide__section_eg2_rty_21c">调试开关</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_debug_guide__section_jg2_rty_21c" data-tocid="rtp_debug_guide__section_jg2_rty_21c">Sysfs 节点</a></div></li></ul></div>
	                        	
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