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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" 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/gptimer/gptimer_design_guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">设计说明</h1><div class="date inPage">4 Dec 2024</div><div style="color: gray;">
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Read time: 9 minute(s)
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</div><div class="- topic/body body"><p class="- topic/p p" data-ofbid="d204928e17__20250121171637">GPTimer
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的源代码位于
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<span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/</span>：</p><ul class="- topic/ul ul simple" id="id__ul_emq_n3d_bdc" data-ofbid="id__ul_emq_n3d_bdc"><li class="- topic/li li" data-ofbid="d204928e23__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e25__20250121171637"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv/gpt/drv_gpt.c</span>，GPTimer
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Driver 层实现</p>
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</li><li class="- topic/li li" data-ofbid="d204928e30__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e32__20250121171637"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/include/drv/drv_gptimer.h</span>，GPTimer
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Driver 层接口</p>
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</li><li class="- topic/li li" data-ofbid="d204928e37__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e39__20250121171637"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/hal/gpt/hal_gpt.c</span>，GTPimer
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模块的 HAL 层实现</p>
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</li><li class="- topic/li li" data-ofbid="d204928e44__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e46__20250121171637"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/include/hal/hal_gpt.h</span>，GTPimer
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模块的 HAL 层接口头文件</p>
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</li></ul><section class="- topic/section section" id="id__id3" data-ofbid="id__id3"><h2 class="- topic/title title sectiontitle">模块架构</h2>
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<p class="- topic/p p" data-ofbid="d204928e56__20250121171637">GPTimer 驱动 Driver 层采用 RT-Thread 的 hwtimer 设备驱动框架。HAL 层也可以支持 Baremetal
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方式或配合自定义的设备驱动框架进行使用。</p><figure class="- topic/fig fig fignone" id="id__id7" data-ofbid="id__id7"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_fmq_n3d_bdc" src="../../../images/gptimer/gptimer_sw_system.png" alt="sw_system"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">GPTimer 驱动的软件架构图</span></figcaption></figure></section><section class="- topic/section section" id="id__id4" data-ofbid="id__id4"><h2 class="- topic/title title sectiontitle">关键流程设计</h2>
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<div class="- topic/div div section" id="id__id5">
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<p class="- topic/p p" data-ofbid="d204928e71__20250121171637">GPTimer 的初始化和配置过程是确保其能够正确工作的关键步骤。</p>
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<p class="- topic/p p" data-ofbid="d204928e74__20250121171637">GPTimer
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控制器的详细配置步骤如下：</p>
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<ol class="- topic/ol ol arabic simple" id="id__ol_gmq_n3d_bdc" data-ofbid="id__ol_gmq_n3d_bdc"><li class="- topic/li li" data-ofbid="d204928e78__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e80__20250121171637">初始化 GPTimer 模块的时钟 (clk)，包括时钟源和分频器等参数，确保 GPTimer 以正确的频率运行。</p>
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</li><li class="- topic/li li" data-ofbid="d204928e87__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e89__20250121171637">设置 GPTimer
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的计数值
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(cnt)。</p>
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</li><li class="- topic/li li" data-ofbid="d204928e92__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e94__20250121171637">根据需求，设置
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GPTimer
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的工作模式，例如单次触发、周期性触发等。</p>
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</li><li class="- topic/li li" data-ofbid="d204928e97__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e99__20250121171637">使能 GPTimer
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的中断。</p>
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</li><li class="- topic/li li" data-ofbid="d204928e102__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e104__20250121171637">启动 GPTimer
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计数。</p>
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</li><li class="- topic/li li" data-ofbid="d204928e107__20250121171637">
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<p class="- topic/p p" data-ofbid="d204928e109__20250121171637">注册 hwtimer 设备。</p>
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<p class="- topic/p p" data-ofbid="d204928e112__20250121171637">在 RT-Thread 中，通过 <span class="+ topic/keyword pr-d/apiname keyword apiname">rt_device_hwtimer_register()</span> 函数注册一个
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hwtimer 设备。</p>
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</li></ol>
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</div>
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</section><section class="- topic/section section" id="id__id6" data-ofbid="id__id6"><h2 class="- topic/title title sectiontitle">数据结构设计</h2>
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<div class="- topic/div div section" id="id__struct-gptimer-info">
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<strong class="+ topic/ph hi-d/b ph b">struct gptimer_info</strong>
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<div class="- topic/p p" data-ofbid="d204928e130__20250121171637">属于 Driver 层接口，记录一个 GPTimer
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设备的配置信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_jng_cqt_cdc" data-ofbid="id__codeblock_jng_cqt_cdc"><strong class="hl-keyword">struct</strong> gptimer_info {
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<strong class="hl-keyword">char</strong> name[<span class="hl-number">12</span>];
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u32 id;
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<strong class="hl-keyword">struct</strong> irq_flag gptirq_flag;
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rt_hwtimer_t gptimer;
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};</pre></div></div><div class="- topic/div div section" id="id__struct-gptimer-para">
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<strong class="+ topic/ph hi-d/b ph b">struct gptimer_para</strong>
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<div class="- topic/p p" data-ofbid="d204928e139__20250121171637">属于 Driver 层接口，用于设置 GPTimer
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的工作模式：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_wnv_cqt_cdc" data-ofbid="id__codeblock_wnv_cqt_cdc"><strong class="hl-keyword">struct</strong> gptimer_match_out
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{
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u8 is_en;
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<strong class="hl-keyword">enum</strong> gpt_out_init out_init;
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<strong class="hl-keyword">enum</strong> gpt_cmp_out cmpa_out;
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<strong class="hl-keyword">enum</strong> gpt_cmp_out cmpb_out;
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};
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<strong class="hl-keyword">struct</strong> gptimer_match
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{
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<strong class="hl-keyword">enum</strong> gpt_cmp_act cmpa_act;
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<strong class="hl-keyword">enum</strong> gpt_cmp_act cmpb_act;
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<strong class="hl-keyword">struct</strong> gptimer_match_out outval[GPT_OUT_NUMS];
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};
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<strong class="hl-keyword">struct</strong> gptimer_para
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{
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<strong class="hl-keyword">enum</strong> gptimer_mode gptimer_mode;
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<strong class="hl-keyword">enum</strong> gpt_trg_mode gptimer_trgmode;
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<strong class="hl-keyword">struct</strong> gptimer_match matchval;
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};</pre></div></div></section><section class="- topic/section section" id="id__driver" data-ofbid="id__driver"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
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<div class="- topic/p p" data-ofbid="d204928e148__20250121171637"><span class="+ topic/keyword pr-d/apiname keyword apiname">struct rt_hwtimer_ops</span> 是 RT-Thread 中定义的 hwtimer
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设备驱动框架的标准接口，包含了一组函数指针，用于初始化、启动、停止、获取计数值和控制定时器等操作。<div class="- topic/note note note note_note" id="id__note_otz_zqt_cdc" data-ofbid="id__note_otz_zqt_cdc"><span class="note__title">注：</span> 各个操作参数的详细说明，可查看下列表格。</div></div>
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<div class="- topic/p p" data-ofbid="d204928e155__20250121171637">以下示例展示了如何定义并实现 <span class="+ topic/keyword pr-d/apiname keyword apiname">rt_hwtimer_ops</span>
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接口，并将其应用到一个定时器设备上。通过这种方式，可以方便地扩展和管理不同的定时器设备：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_it4_dqt_cdc" data-ofbid="id__codeblock_it4_dqt_cdc"><strong class="hl-keyword">struct</strong> rt_hwtimer_ops
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{
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<strong class="hl-keyword">void</strong> (*init)(<strong class="hl-keyword">struct</strong> rt_hwtimer_device *timer, rt_uint32_t state);
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#ifdef AIC_GPTIMER_DRV
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rt_err_t (*start)(<strong class="hl-keyword">struct</strong> rt_hwtimer_device *timer, rt_uint32_t cnt, rt_hwtimer_mode_t mode, <strong class="hl-keyword">void</strong> *args);
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#<strong class="hl-keyword">else</strong>
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rt_err_t (*start)(<strong class="hl-keyword">struct</strong> rt_hwtimer_device *timer, rt_uint32_t cnt, rt_hwtimer_mode_t mode);
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#endif
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<strong class="hl-keyword">void</strong> (*stop)(<strong class="hl-keyword">struct</strong> rt_hwtimer_device *timer);
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rt_uint32_t (*count_get)(<strong class="hl-keyword">struct</strong> rt_hwtimer_device *timer);
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rt_err_t (*control)(<strong class="hl-keyword">struct</strong> rt_hwtimer_device *timer, rt_uint32_t cmd, <strong class="hl-keyword">void</strong> *args);
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};</pre></div>
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<p class="- topic/p p" data-ofbid="d204928e166__20250121171637">为了拓展 GPTimer 的功能，<span class="+ topic/keyword pr-d/apiname keyword apiname">(*start)</span> 接口中新增了 <span class="+ topic/keyword pr-d/parmname keyword parmname">args</span> 参数，用于设置
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GPTimer 的工作模式。</p>
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<div class="- topic/div div section" id="id__drv-gptimer-init">
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<div class="table-container"><table class="- topic/table table frame-all" id="id__table_kmq_n3d_bdc" data-ofbid="id__table_kmq_n3d_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_gptimer_init</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_kmq_n3d_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_kmq_n3d_bdc__entry__2">static void drv_gptimer_init(rt_hwtimer_t *timer, rt_uint32_t
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state)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_kmq_n3d_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_kmq_n3d_bdc__entry__2">初始化配置一路 Timer</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_kmq_n3d_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_kmq_n3d_bdc__entry__2">
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<div class="- topic/div div">
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<div class="- topic/div div">timer - 指向 rt_hwtimer_t 设备的指针</div>
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<div class="- topic/div div">state - 1，表示打开；0，表示关闭</div>
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</div>
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</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_kmq_n3d_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_kmq_n3d_bdc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_kmq_n3d_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_kmq_n3d_bdc__entry__2">-</td></tr></tbody></table></div>
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</div>
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<div class="- topic/div div section" id="id__drv-hrtimer-start">
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<div class="table-container"><table class="- topic/table table frame-all" id="id__table_lmq_n3d_bdc" data-ofbid="id__table_lmq_n3d_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_hrtimer_start</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_lmq_n3d_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_lmq_n3d_bdc__entry__2">static rt_err_t drv_gptimer_start(rt_hwtimer_t *timer,
|
||
rt_uint32_t cnt, rt_hwtimer_mode_t mode, void *args)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_lmq_n3d_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_lmq_n3d_bdc__entry__2">启动 Timer</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_lmq_n3d_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_lmq_n3d_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">timer - 指向 rt_hwtimer_t 设备的指针</div>
|
||
<div class="- topic/div div">cnt - Timer 的超时计数，单位是:1/Freq 秒</div>
|
||
<div class="- topic/div div">mode - Oneshot、或 Period 类型</div>
|
||
<div class="- topic/div div">args - 指向 GPtimer 工作模式参数指针</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_lmq_n3d_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_lmq_n3d_bdc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_lmq_n3d_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_lmq_n3d_bdc__entry__2">输出模式下 CMPA 值默认为 cnt 值的四分之一，CMPB 值默认为 cnt 值的二分之一</td></tr></tbody></table></div>
|
||
</div>
|
||
<div class="- topic/div div section" id="id__drv-hrtimer-stop">
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_mmq_n3d_bdc" data-ofbid="id__table_mmq_n3d_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_hrtimer_stop</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_mmq_n3d_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_mmq_n3d_bdc__entry__2">static void drv_gptimer_stop(rt_hwtimer_t *timer)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_mmq_n3d_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_mmq_n3d_bdc__entry__2">停止 Timer</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_mmq_n3d_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_mmq_n3d_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">timer - 指向 rt_hwtimer_t 设备的指针</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_mmq_n3d_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_mmq_n3d_bdc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_mmq_n3d_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_mmq_n3d_bdc__entry__2">-</td></tr></tbody></table></div>
|
||
</div>
|
||
<div class="- topic/div div section" id="id__drv-hrtimer-ctrl">
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_nmq_n3d_bdc" data-ofbid="id__table_nmq_n3d_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 4</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_hrtimer_ctrl</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_nmq_n3d_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_nmq_n3d_bdc__entry__2">static rt_err_t drv_gptimer_ctrl(rt_hwtimer_t *timer,
|
||
rt_uint32_t cmd, void *args)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_nmq_n3d_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_nmq_n3d_bdc__entry__2">GPTimer 驱动的 ioctl 接口</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_nmq_n3d_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_nmq_n3d_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">timer - 指向 rt_hwtimer_t 设备的指针</div>
|
||
<div class="- topic/div div">cmd - ioctl 命令码</div>
|
||
<div class="- topic/div div">args - ioctl 命令相应的参数</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_nmq_n3d_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_nmq_n3d_bdc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_nmq_n3d_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_nmq_n3d_bdc__entry__2">目前仅支持设置 Timer 的 Freq 值</td></tr></tbody></table></div>
|
||
</div>
|
||
</section><section class="- topic/section section" id="id__hal" data-ofbid="id__hal"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d204928e371__20250121171637"><span class="+ topic/ph sw-d/filepath ph filepath">hal_gpt.h</span>
|
||
是一个头文件，其中声明了与通用定时器 (GPT) 相关的函数接口。HAL
|
||
层主要包含以下函数接口：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_j34_jvt_cdc" data-ofbid="id__codeblock_j34_jvt_cdc">u32 hal_gpt_int_stat(u32 i);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_int_clr(u32 i, u32 mask);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_clk_div_set(u32 i, u32 div);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_ctl_set(u32 i, u32 trg_db, <strong class="hl-keyword">enum</strong> gpt_trg_mode trg_mode, <strong class="hl-keyword">enum</strong> gpt_run_mode run_mode);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_en(u32 i, u32 enable);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_clr(u32 i);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_irq_en(u32 i, <strong class="hl-keyword">enum</strong> gpt_irq_mode irq_mode, u32 enable);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_irq_disable(u32 i);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_set_max(u32 i, u32 val);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_out_init(u32 i, u32 out_num, <strong class="hl-keyword">struct</strong> gptimer_match cfg, u32 cmpa_val, u32 cmpb_val);
|
||
<strong class="hl-keyword">void</strong> hal_gpt_out_en(u32 i, u32 out_num, u32 enable);</pre></div>
|
||
</section><section class="- topic/section section" id="id__demo" data-ofbid="id__demo"><h2 class="- topic/title title sectiontitle">Demo</h2>
|
||
|
||
|
||
<div class="- topic/p p" data-ofbid="d204928e388__20250121171637">本
|
||
Demo 是 test_gptimer
|
||
的部分源码（<span class="+ topic/ph sw-d/filepath ph filepath">bsp/examples/test-gptimer/test_gptimer.c</span>）：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_sf2_smt_cdc" data-ofbid="id__codeblock_sf2_smt_cdc"><strong class="hl-keyword">struct</strong> test_gptimer_para {
|
||
rt_hwtimerval_t tm;
|
||
<strong class="hl-keyword">struct</strong> gptimer_para gpt_para;
|
||
};
|
||
|
||
<strong class="hl-keyword">struct</strong> gptimer_match_out g_outval[GPT_OUT_NUMS] = {
|
||
{<span class="hl-number">1</span>, OUT_INIT_LOW, CMP_OUT_HIGH, CMP_OUT_LOW},
|
||
{<span class="hl-number">1</span>, OUT_INIT_HIGH, CMP_OUT_LOW, CMP_OUT_HIGH},
|
||
{<span class="hl-number">0</span>, OUT_INIT_LOW, CMP_OUT_HIGH, CMP_OUT_LOW},
|
||
{<span class="hl-number">0</span>, OUT_INIT_LOW, CMP_OUT_HIGH, CMP_OUT_LOW},
|
||
};
|
||
|
||
<strong class="hl-keyword">enum</strong> gpt_cmp_act g_cmpa_act = GPTIMER_CNT_CONTINUE;
|
||
<strong class="hl-keyword">enum</strong> gpt_cmp_act g_cmpb_act = GPTIMER_CNT_CONTINUE;
|
||
|
||
<em class="hl-comment">/* Timer timeout callback function */</em>
|
||
<strong class="hl-keyword">static</strong> rt_err_t gptimer_cb(rt_device_t dev, rt_size_t size)
|
||
{
|
||
<strong class="hl-keyword">struct</strong> gptimer_info *info = (<strong class="hl-keyword">struct</strong> gptimer_info *)dev->user_data;
|
||
|
||
#ifdef ULOG_USING_ISR_LOG
|
||
<strong class="hl-keyword">if</strong> (g_debug)
|
||
printf(<span class="hl-string">"%d/%d gptimer%d timeout callback! Elapsed %ld us\n"</span>,
|
||
g_loop_cnt, g_loop_max,
|
||
info->id, aic_timer_get_us() - g_start_us);
|
||
#endif
|
||
|
||
g_start_us = aic_timer_get_us();
|
||
g_loop_cnt++;
|
||
<strong class="hl-keyword">if</strong> ((g_loop_max > <span class="hl-number">1</span>) && (g_loop_cnt > g_loop_max))
|
||
rt_device_control(g_gptimer_dev[info->id], HWTIMER_CTRL_STOP, NULL);
|
||
|
||
<strong class="hl-keyword">return</strong> RT_EOK;
|
||
}
|
||
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">void</strong> cmd_test_gptimer(<strong class="hl-keyword">int</strong> argc, <strong class="hl-keyword">char</strong> *argv[])
|
||
{
|
||
rt_err_t ret = RT_EOK;
|
||
u32 c, ch = <span class="hl-number">0</span>;
|
||
<strong class="hl-keyword">struct</strong> test_gptimer_para para = {<span class="hl-number">0</span>};
|
||
rt_hwtimer_mode_t mode = HWTIMER_MODE_ONESHOT;
|
||
<strong class="hl-keyword">enum</strong> gptimer_mode gpt_mode = GPTIMER_MODE_COUNT;
|
||
<strong class="hl-keyword">enum</strong> gpt_trg_mode trg_mode = GPT_TRG_MODE_AUTO;
|
||
u32 freq= <span class="hl-number">1000000</span>;
|
||
|
||
optind = <span class="hl-number">0</span>;
|
||
g_debug = <span class="hl-number">0</span>;
|
||
<strong class="hl-keyword">while</strong> ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -<span class="hl-number">1</span>) {
|
||
<strong class="hl-keyword">switch</strong> (c) {
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'m'</span>:
|
||
<strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"period"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
mode = HWTIMER_MODE_PERIOD;
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'c'</span>:
|
||
ch = atoi(optarg);
|
||
<strong class="hl-keyword">if</strong> (ch > TIMER_NUM) {
|
||
pr_err(<span class="hl-string">"Channel number %s is invalid\n"</span>, optarg);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'s'</span>:
|
||
para.tm.sec = atoi(optarg);
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'u'</span>:
|
||
para.tm.usec = atoi(optarg);
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'d'</span>:
|
||
g_debug = <span class="hl-number">1</span>;
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'g'</span>:
|
||
<strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"count"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
gpt_mode = GPTIMER_MODE_COUNT;
|
||
<strong class="hl-keyword">else</strong> <strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"match"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
gpt_mode = GPTIMER_MODE_MATCH;
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'a'</span>:
|
||
<strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"auto"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
trg_mode = GPT_TRG_MODE_AUTO;
|
||
<strong class="hl-keyword">else</strong> <strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"rsi"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
trg_mode = GPT_TRG_MODE_RSI;
|
||
<strong class="hl-keyword">else</strong> <strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"fall"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
trg_mode = GPT_TRG_MODE_FALL;
|
||
<strong class="hl-keyword">else</strong> <strong class="hl-keyword">if</strong> (strncasecmp(<span class="hl-string">"bil"</span>, optarg, strlen(optarg)) == <span class="hl-number">0</span>)
|
||
trg_mode = GPT_TRG_MODE_BILATERAL;
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'f'</span>:
|
||
freq = atoi(optarg);
|
||
<strong class="hl-keyword">continue</strong>;
|
||
|
||
<strong class="hl-keyword">case</strong> <span class="hl-string">'h'</span>:
|
||
usage(argv[<span class="hl-number">0</span>]);
|
||
<strong class="hl-keyword">return</strong>;
|
||
|
||
<strong class="hl-keyword">default</strong>:
|
||
pr_err(<span class="hl-string">"Invalid argument\n"</span>);
|
||
usage(argv[<span class="hl-number">0</span>]);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
}
|
||
|
||
<strong class="hl-keyword">if</strong> ((para.tm.sec == <span class="hl-number">0</span>) && (para.tm.usec == <span class="hl-number">0</span>)) {
|
||
pr_err(<span class="hl-string">"Invalid argument\n"</span>);
|
||
usage(argv[<span class="hl-number">0</span>]);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
|
||
<strong class="hl-keyword">if</strong> (!g_gptimer_dev[ch]) {
|
||
<strong class="hl-keyword">char</strong> name[<span class="hl-number">10</span>] = <span class="hl-string">""</span>;
|
||
|
||
snprintf(name, <span class="hl-number">10</span>, <span class="hl-string">"gptimer%d"</span>, ch);
|
||
|
||
<em class="hl-comment">/* find timer device */</em>
|
||
g_gptimer_dev[ch] = rt_device_find(name);
|
||
<strong class="hl-keyword">if</strong> (g_gptimer_dev[ch] == RT_NULL) {
|
||
pr_err(<span class="hl-string">"Can't find %s device!\n"</span>, name);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
|
||
<em class="hl-comment">/* Open the device in read-write mode */</em>
|
||
ret = rt_device_open(g_gptimer_dev[ch], RT_DEVICE_OFLAG_RDWR);
|
||
<strong class="hl-keyword">if</strong> (ret != RT_EOK) {
|
||
pr_err(<span class="hl-string">"Failed to open %s device!\n"</span>, name);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
}
|
||
|
||
para.gpt_para.gptimer_mode = gpt_mode;
|
||
para.gpt_para.gptimer_trgmode = trg_mode;
|
||
|
||
<strong class="hl-keyword">if</strong> (gpt_mode == GPTIMER_MODE_MATCH) {
|
||
para.gpt_para.matchval.cmpa_act = g_cmpa_act;
|
||
para.gpt_para.matchval.cmpb_act = g_cmpb_act;
|
||
memcpy(&para.gpt_para.matchval.outval[<span class="hl-number">0</span>], g_outval, <strong class="hl-keyword">sizeof</strong>(<strong class="hl-keyword">struct</strong> gptimer_match_out) * <span class="hl-number">4</span>);
|
||
}
|
||
|
||
<em class="hl-comment">/* set timeout callback function */</em>
|
||
rt_device_set_rx_indicate(g_gptimer_dev[ch], gptimer_cb);
|
||
|
||
<em class="hl-comment">/* set the timer mode, oneshot or period */</em>
|
||
ret = rt_device_control(g_gptimer_dev[ch], HWTIMER_CTRL_MODE_SET, &mode);
|
||
<strong class="hl-keyword">if</strong> (ret != RT_EOK) {
|
||
pr_err(<span class="hl-string">"Failed to set mode! ret is %d\n"</span>, ret);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
|
||
<em class="hl-comment">/* set the timer frequency to freqHz */</em>
|
||
ret = rt_device_control(g_gptimer_dev[ch], HWTIMER_CTRL_FREQ_SET, &freq);
|
||
<strong class="hl-keyword">if</strong> (ret != RT_EOK) {
|
||
pr_err(<span class="hl-string">"Failed to set the freq! ret is %d\n"</span>, ret);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
|
||
printf(<span class="hl-string">"gptimer%d: Create a timer of %d.%06d sec, %s mode\n"</span>,
|
||
ch, (u32)para.tm.sec, (u32)para.tm.usec,
|
||
mode == HWTIMER_MODE_ONESHOT ? <span class="hl-string">"Oneshot"</span> : <span class="hl-string">"Period"</span>);
|
||
<strong class="hl-keyword">if</strong> (mode != HWTIMER_MODE_ONESHOT) {
|
||
g_loop_max = GPTIMER_MAX_ELAPSE / (para.tm.sec * USEC_PER_SEC + para.tm.usec);
|
||
printf(<span class="hl-string">"\tWill loop %d times\n"</span>, g_loop_max);
|
||
}
|
||
|
||
g_loop_cnt = <span class="hl-number">0</span>;
|
||
g_start_us = aic_timer_get_us();
|
||
<strong class="hl-keyword">if</strong> (!rt_device_write(g_gptimer_dev[ch], <span class="hl-number">0</span>, &para, <strong class="hl-keyword">sizeof</strong>(<strong class="hl-keyword">struct</strong> test_gptimer_para))) {
|
||
pr_err(<span class="hl-string">"set timeout value failed\n"</span>);
|
||
<strong class="hl-keyword">return</strong>;
|
||
}
|
||
|
||
<em class="hl-comment">// rt_device_close(g_gptimer_dev[ch]);</em>
|
||
}
|
||
MSH_CMD_EXPORT_ALIAS(cmd_test_gptimer, test_gptimer, test gptimer);</pre></div>
|
||
</section></div></article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
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<div id="wh_topic_toc_content">
|
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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="#id__id3" data-tocid="id__id3">模块架构</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id4" data-tocid="id__id4">关键流程设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id6" data-tocid="id__id6">数据结构设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__driver" data-tocid="id__driver">Driver 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__hal" data-tocid="id__hal">HAL 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__demo" data-tocid="id__demo">Demo</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style><!--
|
||
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
|
||
--></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div><div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-01-21
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</div>
|
||
|
||
<div id="modal_img_large" class="modal">
|
||
<span class="close oxy-icon oxy-icon-remove"></span>
|
||
<div id="modal_img_container"></div>
|
||
<div id="caption"></div>
|
||
</div>
|
||
|
||
|
||
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
||
|
||
|
||
</body>
|
||
</html> |