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class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/touch-configure.html" id="touch-configure-d3752e1951-link">测试指南</a></div></div></li><li role="treeitem"><div data-tocid="touch_faq-d3752e1965" class="topicref" data-id="touch_faq" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/touch-faq.html" id="touch_faq-d3752e1965-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e1979" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e1979-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/wifi.html" id="id-d3752e1979-link">无线网络</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2022" class="topicref" data-id="id" data-state="not-ready"><span role="button" 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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/peripheral/touch-revise-existing-gt911-drive.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">在 gt911 基础上修改新 CTP 驱动</h1>
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<div class="date inPage">16 May 2025</div><div style="color: gray;">
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Read time: 24 minute(s)
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<div class="- topic/body body">
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<div class="- topic/p p" data-ofbid="d56986e36__20250519091508">本节以将 GT911 驱动修改为 CST826 驱动为例，描述通过修改已有 CTP 驱动进行 CTP 移植的详细流程。<ol class="- topic/ol ol" id="touch_revise_existing_gt911_drive__ol_xl5_n3w_12c" data-ofbid="touch_revise_existing_gt911_drive__ol_xl5_n3w_12c">
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<li class="- topic/li li" data-ofbid="d56986e40__20250519091508"><strong class="+ topic/ph hi-d/b ph b">修改编译路径</strong><p class="- topic/p p" data-ofbid="d56986e43__20250519091508">打开 <span class="+ topic/ph sw-d/filepath ph filepath">bsp/peripheral/touch/SConscript</span> 文件，并将
|
||
GT911 文件编译路径描述修改为 CST826 文件编译路径。</p><div class="- topic/p p" data-ofbid="d56986e48__20250519091508">示例如下：<ul class="- topic/ul ul" id="touch_revise_existing_gt911_drive__ul_nyf_q3w_12c" data-ofbid="touch_revise_existing_gt911_drive__ul_nyf_q3w_12c">
|
||
<li class="- topic/li li" data-ofbid="d56986e52__20250519091508">
|
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<div class="- topic/p p" data-ofbid="d56986e54__20250519091508">修改前，GT911
|
||
文件编译路径：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_m4f_s3w_12c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_m4f_s3w_12c"><strong class="hl-keyword">if</strong> GetDepend(<span class="hl-string">'AIC_TOUCH_PANEL_GT911'</span>):
|
||
CPPPATH.append(cwd + <span class="hl-string">'/gt911/inc'</span>)
|
||
src += Glob(<span class="hl-string">'gt911/src/*.c'</span>)</pre></div>
|
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</li>
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||
<li class="- topic/li li" data-ofbid="d56986e60__20250519091508">
|
||
<div class="- topic/p p" data-ofbid="d56986e62__20250519091508">修改后，CST826
|
||
文件编译路径：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_sxn_t3w_12c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_sxn_t3w_12c"><strong class="hl-keyword">if</strong> GetDepend(<span class="hl-string">'AIC_TOUCH_PANEL_CST826'</span>):
|
||
CPPPATH.append(cwd + <span class="hl-string">'/cst826/inc'</span>)
|
||
src += Glob(<span class="hl-string">'cst826/src/*.c'</span>)</pre></div>
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</li>
|
||
</ul></div></li>
|
||
<li class="- topic/li li" data-ofbid="d56986e69__20250519091508"><strong class="+ topic/ph hi-d/b ph b">修改 menuconfig 设备配置</strong><div class="- topic/p p" data-ofbid="d56986e72__20250519091508">打开 <span class="+ topic/ph sw-d/filepath ph filepath">bsp/peripheral/touch/Kconfig</span>
|
||
文件，将 GT911 的设备和设备名分别修改为 CST826 的设备和设备名：<ul class="- topic/ul ul" id="touch_revise_existing_gt911_drive__ul_m5c_bjw_12c" data-ofbid="touch_revise_existing_gt911_drive__ul_m5c_bjw_12c">
|
||
<li class="- topic/li li" data-ofbid="d56986e79__20250519091508">
|
||
<div class="- topic/p p" data-ofbid="d56986e81__20250519091508">修改前：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_ksh_2jw_12c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_ksh_2jw_12c">choice
|
||
prompt <span class="hl-string">"Select CTP device"</span>
|
||
<strong class="hl-keyword">default</strong> AIC_TOUCH_PANEL_GT911
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depends on AIC_USING_CTP
|
||
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config AIC_TOUCH_PANEL_GT911 <em class="hl-comment">//设备</em>
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||
bool <span class="hl-string">"GT911"</span>
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config AIC_TOUCH_PANEL_NAME
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||
string
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||
<strong class="hl-keyword">default</strong> <span class="hl-string">"gt911"</span> <strong class="hl-keyword">if</strong> AIC_TOUCH_PANEL_GT911 <em class="hl-comment">//设备名</em></pre></div>
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</li>
|
||
<li class="- topic/li li" data-ofbid="d56986e87__20250519091508">
|
||
<div class="- topic/p p" data-ofbid="d56986e89__20250519091508">修改后：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_lg2_fjw_12c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_lg2_fjw_12c">choice
|
||
prompt <span class="hl-string">"Select CTP device"</span>
|
||
<strong class="hl-keyword">default</strong> AIC_TOUCH_PANEL_GT911
|
||
depends on AIC_USING_CTP
|
||
|
||
config AIC_TOUCH_PANEL_CST826 <em class="hl-comment">//设备</em>
|
||
bool <span class="hl-string">"CST826"</span>
|
||
|
||
config AIC_TOUCH_PANEL_NAME
|
||
string
|
||
<strong class="hl-keyword">default</strong> <span class="hl-string">"cst826"</span> <strong class="hl-keyword">if</strong> AIC_TOUCH_PANEL_CST826 <em class="hl-comment">//设备名</em></pre></div>
|
||
</li>
|
||
</ul></div></li>
|
||
<li class="- topic/li li" data-ofbid="d56986e96__20250519091508"><strong class="+ topic/ph hi-d/b ph b">修改文件名</strong><div class="- topic/p p" data-ofbid="d56986e99__20250519091508">打开 <span class="+ topic/ph sw-d/filepath ph filepath">bsp/peripheral/touch</span> 文件目录，将
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">gt911</span>
|
||
文件夹名称及其源文件名称修改为<span class="+ topic/ph sw-d/filepath ph filepath">cst826</span>：<ul class="- topic/ul ul" id="touch_revise_existing_gt911_drive__ul_zml_4jw_12c" data-ofbid="touch_revise_existing_gt911_drive__ul_zml_4jw_12c">
|
||
<li class="- topic/li li" data-ofbid="d56986e112__20250519091508">修改前：<div class="- topic/p p" data-ofbid="d56986e114__20250519091508">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="touch_revise_existing_gt911_drive__image_dbh_pjw_12c" src="../../../images/ctp/gt911_code.png"/></div><br/>
|
||
</div></li>
|
||
<li class="- topic/li li" data-ofbid="d56986e119__20250519091508">修改后：<div class="- topic/p p" data-ofbid="d56986e121__20250519091508">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="touch_revise_existing_gt911_drive__image_ed4_pjw_12c" src="../../../images/ctp/cst826_code.png"/></div><br/>
|
||
</div></li>
|
||
</ul></div></li>
|
||
<li class="- topic/li li" data-ofbid="d56986e127__20250519091508">
|
||
<p class="- topic/p p" data-ofbid="d56986e129__20250519091508"><strong class="+ topic/ph hi-d/b ph b">修改源代码 <span class="+ topic/ph sw-d/filepath ph filepath">gt911.c</span> 文件如下</strong></p>
|
||
<div class="- topic/p p" data-ofbid="d56986e136__20250519091508">
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_rxn_qp1_b2c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_rxn_qp1_b2c">#include <rtthread.h>
|
||
#include <rtdevice.h>
|
||
#include <string.h>
|
||
<em class="hl-comment">//#define DBG_TAG "gt911"</em>
|
||
#<span class="hl-directive">define</span> DBG_TAG <span class="hl-string">"cst826"</span>
|
||
#<span class="hl-directive">define</span> DBG_LVL DBG_INFO
|
||
#include <rtdbg.h>
|
||
<em class="hl-comment">//#include "gt911.h"</em>
|
||
#include <span class="hl-string">"cst826.h"</span>
|
||
<em class="hl-comment">//static struct rt_i2c_client gt911_client;</em>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> rt_i2c_client cst826_client;
|
||
|
||
<em class="hl-comment">//下面的数组是 gt911 的部分固件数组注释掉或者直接删除</em>
|
||
<em class="hl-comment">// static rt_uint8_t GT911_CFG_TBL[] = {</em>
|
||
<em class="hl-comment">// 0x6b, 0x00, 0x04, 0x58, 0x02, 0x05, 0x0d, 0x00, 0x01, 0x0f, 0x28, 0x0f,</em>
|
||
<em class="hl-comment">// 0x50, 0x32, 0x03, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x8a, 0x2a, 0x0c, 0x45, 0x47, 0x0c, 0x08, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x40, 0x03, 0x2c, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x64, 0x32,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x28, 0x64, 0x94, 0xd5, 0x02, 0x07, 0x00, 0x00, 0x04,</em>
|
||
<em class="hl-comment">// 0x95, 0x2c, 0x00, 0x8b, 0x34, 0x00, 0x82, 0x3f, 0x00, 0x7d, 0x4c, 0x00,</em>
|
||
<em class="hl-comment">// 0x7a, 0x5b, 0x00, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x00, 0x18, 0x16, 0x14, 0x12, 0x10, 0x0e, 0x0c, 0x0a,</em>
|
||
<em class="hl-comment">// 0x08, 0x06, 0x04, 0x02, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x18,</em>
|
||
<em class="hl-comment">// 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x24, 0x13, 0x12, 0x10, 0x0f,</em>
|
||
<em class="hl-comment">// 0x0a, 0x08, 0x06, 0x04, 0x02, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</em>
|
||
<em class="hl-comment">// 0x00, 0x00, 0x00, 0x00, 0x79, 0x01,</em>
|
||
<em class="hl-comment">// };</em>
|
||
|
||
<em class="hl-comment">/*
|
||
* I2C 写函数，主要传参有三个：dev,要写入的数据，写入数据的长度
|
||
* 这个函数适用于所有的 TP，编写的时候只需要更换函数名字，跟 TP 对应上即可
|
||
*/</em>
|
||
<em class="hl-comment">//static rt_err_t gt911_write_reg(struct rt_i2c_client *dev, rt_uint8_t *data, rt_uint8_t len)</em>
|
||
<strong class="hl-keyword">static</strong> rt_err_t cst826_write_reg(<strong class="hl-keyword">struct</strong> rt_i2c_client *dev, rt_uint8_t *data, rt_uint8_t len)
|
||
{
|
||
<strong class="hl-keyword">struct</strong> rt_i2c_msg msgs;
|
||
|
||
msgs.addr = dev->client_addr;
|
||
msgs.flags = RT_I2C_WR;
|
||
msgs.buf = data;
|
||
msgs.len = len;
|
||
|
||
<strong class="hl-keyword">if</strong> (rt_i2c_transfer(dev->bus, &msgs, <span class="hl-number">1</span>) == <span class="hl-number">1</span>) {
|
||
<strong class="hl-keyword">return</strong> RT_EOK;
|
||
} <strong class="hl-keyword">else</strong> {
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
}
|
||
|
||
<em class="hl-comment">/*
|
||
* I2C 读函数，主要传参有四个：dev,要读取的寄存器地址，接受数据的 buf，读取的长度
|
||
* 这个函数适用于所有的 TP，编写的时候只需要更换函数名字，跟 TP 对应上即可
|
||
*/</em>
|
||
<em class="hl-comment">//static rt_err_t gt911_read_regs(struct rt_i2c_client *dev, rt_uint8_t *reg,</em>
|
||
<em class="hl-comment">// rt_uint8_t *data, rt_uint8_t len)</em>
|
||
<strong class="hl-keyword">static</strong> rt_err_t cst826_read_regs(<strong class="hl-keyword">struct</strong> rt_i2c_client *dev, rt_uint8_t *reg,
|
||
rt_uint8_t *data, rt_uint8_t len)
|
||
{
|
||
<strong class="hl-keyword">struct</strong> rt_i2c_msg msgs[<span class="hl-number">2</span>];
|
||
|
||
msgs[<span class="hl-number">0</span>].addr = dev->client_addr;
|
||
msgs[<span class="hl-number">0</span>].flags = RT_I2C_WR;
|
||
msgs[<span class="hl-number">0</span>].buf = reg;
|
||
<em class="hl-comment">//msgs[0].len = GT911_REGITER_LEN;</em>
|
||
msgs[<span class="hl-number">0</span>].len = <span class="hl-number">1</span>; <em class="hl-comment">//这里的 len 只能是 1 或者 2，1 对应 8bit 寄存器，8 对应 16bit 寄存器</em>
|
||
|
||
msgs[<span class="hl-number">1</span>].addr = dev->client_addr;
|
||
msgs[<span class="hl-number">1</span>].flags = RT_I2C_RD;
|
||
msgs[<span class="hl-number">1</span>].buf = data;
|
||
msgs[<span class="hl-number">1</span>].len = len;
|
||
|
||
<strong class="hl-keyword">if</strong> (rt_i2c_transfer(dev->bus, msgs, <span class="hl-number">2</span>) == <span class="hl-number">2</span>) {
|
||
<strong class="hl-keyword">return</strong> RT_EOK;
|
||
} <strong class="hl-keyword">else</strong> {
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
}
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个函数主要用于获取 TP 的 ID，有些 TP 并没有具体获取 ID 的寄存器公开，可以删除
|
||
*/</em>
|
||
<em class="hl-comment">//static rt_err_t gt911_get_product_id(struct rt_i2c_client *dev,</em>
|
||
<em class="hl-comment">// rt_uint8_t *data, rt_uint8_t len)</em>
|
||
<em class="hl-comment">// {</em>
|
||
<em class="hl-comment">// rt_uint8_t reg[2];</em>
|
||
|
||
<em class="hl-comment">// reg[0] = (rt_uint8_t)(GT911_PRODUCT_ID >> 8);</em>
|
||
<em class="hl-comment">// reg[1] = (rt_uint8_t)(GT911_PRODUCT_ID & 0xff);</em>
|
||
|
||
<em class="hl-comment">// if (gt911_read_regs(dev, reg, data, len) != RT_EOK) {</em>
|
||
<em class="hl-comment">// LOG_E("read id failed");</em>
|
||
<em class="hl-comment">// return -RT_ERROR;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// return RT_EOK;</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个函数主要用于获取 TP 的参数，包括：xy 的坐标范围最大值，触摸点的个数，如果规格书没有相关描述可以删除，用 rt_touch_info 结构体去配置，如果想实现可以参考上一章相同函数编写
|
||
*/</em>
|
||
<em class="hl-comment">//static rt_err_t gt911_get_info(struct rt_i2c_client *dev,</em>
|
||
<em class="hl-comment">// struct rt_touch_info *info)</em>
|
||
<em class="hl-comment">// {</em>
|
||
<em class="hl-comment">// rt_uint8_t reg[2];</em>
|
||
<em class="hl-comment">// rt_uint8_t out_info[7];</em>
|
||
<em class="hl-comment">// rt_uint8_t out_len = 7;</em>
|
||
|
||
<em class="hl-comment">// reg[0] = (rt_uint8_t)(GT911_CONFIG_REG >> 8);</em>
|
||
<em class="hl-comment">// reg[1] = (rt_uint8_t)(GT911_CONFIG_REG & 0xFF);</em>
|
||
|
||
<em class="hl-comment">// if (gt911_read_regs(dev, reg, out_info, out_len) != RT_EOK) {</em>
|
||
<em class="hl-comment">// LOG_E("read info failed");</em>
|
||
<em class="hl-comment">// return -RT_ERROR;</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// info->range_x = (out_info[2] << 8) | out_info[1];</em>
|
||
<em class="hl-comment">// info->range_y = (out_info[4] << 8) | out_info[3];</em>
|
||
<em class="hl-comment">// info->point_num = out_info[5] & 0x0f;</em>
|
||
<em class="hl-comment">// if (info->point_num > GT911_MAX_TOUCH) {</em>
|
||
<em class="hl-comment">// info->point_num = GT911_MAX_TOUCH;</em>
|
||
<em class="hl-comment">// rt_kprintf("Warning,tp support more than 5 points, limited to 5 points\n");</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// return RT_EOK;</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">/*
|
||
* 这里的静态变量主要是为了存储坐标点的数据，然后作逻辑判断
|
||
* GT911_MAX_TOUCH 是最大的触摸点个数也就是上面 info->point_num 定义的 5，所以数组赋值了 5 个-1 作为初始值
|
||
* CST826M 固件目前支持最大触摸点个数为 2，所以 CST826_MAX_TOUCH 是 2，也没有宽度之类的描述，故删除了 pre_w 数组
|
||
*/</em>
|
||
<em class="hl-comment">//static int16_t pre_x[GT911_MAX_TOUCH] = { -1, -1, -1, -1, -1 };</em>
|
||
<em class="hl-comment">//static int16_t pre_y[GT911_MAX_TOUCH] = { -1, -1, -1, -1, -1 };</em>
|
||
<em class="hl-comment">//static int16_t pre_w[GT911_MAX_TOUCH] = { -1, -1, -1, -1, -1 };</em>
|
||
<em class="hl-comment">//static rt_uint8_t s_tp_dowm[GT911_MAX_TOUCH] = {0};</em>
|
||
<em class="hl-comment">//static struct rt_touch_data *read_data = RT_NULL;</em>
|
||
<strong class="hl-keyword">static</strong> int16_t pre_x[CST826_MAX_TOUCH] = { -<span class="hl-number">1</span>, -<span class="hl-number">1</span> };
|
||
<strong class="hl-keyword">static</strong> int16_t pre_y[CST826_MAX_TOUCH] = { -<span class="hl-number">1</span>, -<span class="hl-number">1</span> };
|
||
<strong class="hl-keyword">static</strong> rt_uint8_t s_tp_dowm[CST826_MAX_TOUCH] = {<span class="hl-number">0</span>};
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> rt_touch_data *read_data = RT_NULL;
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个是抬起事件上报函数，修改函数名即可使用
|
||
* 如果定义上面的静态数组的时候没有定义 pre_w，则下面代码关于 pre_w 的要删除
|
||
*/</em>
|
||
<em class="hl-comment">//static void gt911_touch_up(void *buf, int8_t id)</em>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">void</strong> cst826_touch_up(<strong class="hl-keyword">void</strong> *buf, int8_t id)
|
||
{
|
||
read_data = (<strong class="hl-keyword">struct</strong> rt_touch_data *)buf;
|
||
|
||
<strong class="hl-keyword">if</strong> (s_tp_dowm[id] == <span class="hl-number">1</span>) {
|
||
s_tp_dowm[id] = <span class="hl-number">0</span>;
|
||
read_data[id].event = RT_TOUCH_EVENT_UP;
|
||
} <strong class="hl-keyword">else</strong> {
|
||
read_data[id].event = RT_TOUCH_EVENT_NONE;
|
||
}
|
||
|
||
read_data[id].timestamp = rt_touch_get_ts();
|
||
<em class="hl-comment">//read_data[id].width = pre_w[id];</em>
|
||
read_data[id].x_coordinate = pre_x[id];
|
||
read_data[id].y_coordinate = pre_y[id];
|
||
read_data[id].track_id = id;
|
||
|
||
pre_x[id] = -<span class="hl-number">1</span>; <em class="hl-comment">/* last point is none */</em>
|
||
pre_y[id] = -<span class="hl-number">1</span>;
|
||
<em class="hl-comment">//pre_w[id] = -1;</em>
|
||
}
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个是移动和按下事件函数，修改函数名即可使用
|
||
* 如果定义上面的静态数组的时候没有定义 pre_w,则下面代码关于 pre_w 的要删除
|
||
* 包括函数传参里面的 int16_t w 也要删除
|
||
*/</em>
|
||
<em class="hl-comment">//static void gt911_touch_down(void *buf, int8_t id, int16_t x, int16_t y, int16_t w)</em>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">void</strong> cst826_touch_down(<strong class="hl-keyword">void</strong> *buf, int8_t id, int16_t x, int16_t y)
|
||
{
|
||
read_data = (<strong class="hl-keyword">struct</strong> rt_touch_data *)buf;
|
||
|
||
<strong class="hl-keyword">if</strong> (s_tp_dowm[id] == <span class="hl-number">1</span>) {
|
||
read_data[id].event = RT_TOUCH_EVENT_MOVE;
|
||
} <strong class="hl-keyword">else</strong> {
|
||
read_data[id].event = RT_TOUCH_EVENT_DOWN;
|
||
s_tp_dowm[id] = <span class="hl-number">1</span>;
|
||
}
|
||
|
||
read_data[id].timestamp = rt_touch_get_ts();
|
||
<em class="hl-comment">//read_data[id].width = w;</em>
|
||
read_data[id].x_coordinate = x;
|
||
read_data[id].y_coordinate = y;
|
||
read_data[id].track_id = id;
|
||
|
||
pre_x[id] = x; <em class="hl-comment">/* save last point */</em>
|
||
pre_y[id] = y;
|
||
<em class="hl-comment">//pre_w[id] = w;</em>
|
||
}
|
||
|
||
<em class="hl-comment">//static rt_size_t gt911_read_point(struct rt_touch_device *touch, void *buf, rt_size_t read_num)</em>
|
||
<strong class="hl-keyword">static</strong> rt_size_t cst826_read_point(<strong class="hl-keyword">struct</strong> rt_touch_device *touch, <strong class="hl-keyword">void</strong> *buf, rt_size_t read_num)
|
||
{
|
||
<em class="hl-comment">//rt_uint8_t point_status = 0;</em>
|
||
rt_uint8_t touch_num = <span class="hl-number">0</span>;
|
||
<em class="hl-comment">//rt_uint8_t write_buf[3];</em>
|
||
<em class="hl-comment">//rt_uint8_t cmd[2];</em>
|
||
rt_uint8_t reg; <em class="hl-comment">//这里将 cmd[2]改成 reg 是因为 gt911 是 16bit 寄存器需要分开两个 byte 发送寄存器高低位，cst826 是 8bit 寄存器不需要拆开</em>
|
||
<em class="hl-comment">//rt_uint8_t read_buf[8 * GT911_MAX_TOUCH] = { 0 };</em>
|
||
rt_uint8_t read_buf[CST826_POINT_LEN * CST826_MAX_TOUCH + <span class="hl-number">4</span>] = { <span class="hl-number">0</span> }; <em class="hl-comment">//read_buf 的长度取决于要读取多长的数据，长度计算：坐标点数据长度*坐标点个数+其他信息长度</em>
|
||
rt_uint8_t read_index;
|
||
int8_t read_id = <span class="hl-number">0</span>;
|
||
int16_t input_x = <span class="hl-number">0</span>;
|
||
int16_t input_y = <span class="hl-number">0</span>;
|
||
<em class="hl-comment">//int16_t input_w = 0; //cst826 没有宽度相关寄存器描述</em>
|
||
|
||
<strong class="hl-keyword">static</strong> rt_uint8_t pre_touch = <span class="hl-number">0</span>;
|
||
<strong class="hl-keyword">static</strong> int8_t pre_id[GT911_MAX_TOUCH] = { <span class="hl-number">0</span> };
|
||
|
||
rt_memset(buf, <span class="hl-number">0</span>, <strong class="hl-keyword">sizeof</strong>(<strong class="hl-keyword">struct</strong> rt_touch_data) * read_num);
|
||
|
||
<em class="hl-comment">/* point status register */</em>
|
||
<em class="hl-comment">//cmd[0] = (rt_uint8_t)((GT911_READ_STATUS >> 8) & 0xFF);</em>
|
||
<em class="hl-comment">//cmd[1] = (rt_uint8_t)(GT911_READ_STATUS & 0xFF);</em>
|
||
|
||
<em class="hl-comment">//if (gt911_read_regs(&gt911_client, cmd, &point_status, 1) != RT_EOK) {</em>
|
||
<em class="hl-comment">// LOG_D("read point failed\n");</em>
|
||
<em class="hl-comment">// read_num = 0;</em>
|
||
<em class="hl-comment">// goto exit_;</em>
|
||
<em class="hl-comment">//}</em>
|
||
|
||
reg = CST826_WORK_MODE;
|
||
<strong class="hl-keyword">if</strong> (cst826_read_regs(&cst826_client, &reg, read_buf, <strong class="hl-keyword">sizeof</strong>(read_buf)) != RT_EOK) {
|
||
LOG_D(<span class="hl-string">"read point failed\n"</span>);
|
||
read_num = <span class="hl-number">0</span>;
|
||
<strong class="hl-keyword">goto</strong> __exit;
|
||
}
|
||
|
||
<em class="hl-comment">//if (point_status == 0) /* no data */</em>
|
||
<em class="hl-comment">//{</em>
|
||
<em class="hl-comment">// read_num = 0;</em>
|
||
<em class="hl-comment">// goto exit_;</em>
|
||
<em class="hl-comment">//}</em>
|
||
|
||
<em class="hl-comment">//if ((point_status & 0x80) == 0) /* data is not ready */</em>
|
||
<em class="hl-comment">//{</em>
|
||
<em class="hl-comment">// read_num = 0;</em>
|
||
<em class="hl-comment">// goto exit_;</em>
|
||
<em class="hl-comment">//}</em>
|
||
|
||
<em class="hl-comment">//touch_num = point_status & 0x0f; /* get point num */</em>
|
||
|
||
<em class="hl-comment">//if (touch_num > GT911_MAX_TOUCH) /* point num is not correct */</em>
|
||
<em class="hl-comment">//{</em>
|
||
<em class="hl-comment">// read_num = 0;</em>
|
||
<em class="hl-comment">// goto exit_;</em>
|
||
<em class="hl-comment">//}</em>
|
||
touch_num = read_buf[<span class="hl-number">2</span>] & <span class="hl-number">0x0f</span>; <em class="hl-comment">//这里的获取逻辑如果不了解建议去看第一章关于规格书的阅读</em>
|
||
<strong class="hl-keyword">if</strong> (touch_num >= <span class="hl-number">2</span>) {
|
||
touch_num = <span class="hl-number">2</span>;
|
||
}
|
||
|
||
|
||
<em class="hl-comment">//cmd[0] = (rt_uint8_t)((GT911_POINT1_REG >> 8) & 0xFF);</em>
|
||
<em class="hl-comment">//cmd[1] = (rt_uint8_t)(GT911_POINT1_REG & 0xFF);</em>
|
||
|
||
<em class="hl-comment">/* read point num is touch_num */</em>
|
||
<em class="hl-comment">//if (gt911_read_regs(&gt911_client, cmd, read_buf,</em>
|
||
<em class="hl-comment">// read_num * GT911_POINT_INFO_NUM) != RT_EOK) {</em>
|
||
<em class="hl-comment">// LOG_D("read point failed\n");</em>
|
||
<em class="hl-comment">// read_num = 0;</em>
|
||
<em class="hl-comment">// goto exit_;</em>
|
||
<em class="hl-comment">//}</em>
|
||
|
||
<em class="hl-comment">/*
|
||
* 下面是对坐标事件的处理，一般可以直接照抄，根据规格书更换一下信息，后面会把部分规格书信息贴在本章节最后面
|
||
*/</em>
|
||
<strong class="hl-keyword">if</strong> (pre_touch > touch_num)
|
||
{
|
||
<strong class="hl-keyword">for</strong> (read_index = <span class="hl-number">0</span>; read_index < pre_touch; read_index++) {
|
||
rt_uint8_t j;
|
||
|
||
<strong class="hl-keyword">for</strong> (j = <span class="hl-number">0</span>; j < touch_num; j++) <em class="hl-comment">/* this time touch num */</em>
|
||
{
|
||
<em class="hl-comment">//read_id = read_buf[j * 8] & 0x0F;</em>
|
||
read_id = read_buf[<span class="hl-number">5</span> + CST826_POINT_LEN * j] & <span class="hl-number">0xF0</span>;
|
||
|
||
<strong class="hl-keyword">if</strong> (pre_id[read_index] == read_id) <em class="hl-comment">/* this id is not free */</em>
|
||
<strong class="hl-keyword">break</strong>;
|
||
|
||
<strong class="hl-keyword">if</strong> (j >= touch_num - <span class="hl-number">1</span>) {
|
||
rt_uint8_t up_id;
|
||
up_id = pre_id[read_index];
|
||
<em class="hl-comment">//gt911_touch_up(buf, up_id);</em>
|
||
cst826_touch_up(buf, up_id);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<strong class="hl-keyword">if</strong> (touch_num) <em class="hl-comment">/* point down */</em>
|
||
{
|
||
rt_uint8_t off_set;
|
||
|
||
<strong class="hl-keyword">for</strong> (read_index = <span class="hl-number">0</span>; read_index < touch_num; read_index++) {
|
||
<em class="hl-comment">//off_set = read_index * 8;</em>
|
||
off_set = read_index * CST826_POINT_LEN;
|
||
<em class="hl-comment">//read_id = read_buf[off_set] & 0x0f;</em>
|
||
read_id = (read_buf[off_set + <span class="hl-number">5</span>] & <span class="hl-number">0xf0</span>) >> <span class="hl-number">4</span>;
|
||
pre_id[read_index] = read_id;
|
||
<em class="hl-comment">//input_x = read_buf[off_set + 1] | (read_buf[off_set + 2] << 8); /* x */</em>
|
||
<em class="hl-comment">//input_y = read_buf[off_set + 3] | (read_buf[off_set + 4] << 8); /* y */</em>
|
||
<em class="hl-comment">//input_w = read_buf[off_set + 5] | (read_buf[off_set + 6] << 8); /* size */</em>
|
||
input_x = ((read_buf[off_set + <span class="hl-number">3</span>] & <span class="hl-number">0x0f</span>) << <span class="hl-number">8</span>) | read_buf[off_set + <span class="hl-number">4</span>];
|
||
input_y = ((read_buf[off_set + <span class="hl-number">5</span>] & <span class="hl-number">0x0f</span>) << <span class="hl-number">8</span>) | read_buf[off_set + <span class="hl-number">6</span>];
|
||
|
||
<em class="hl-comment">//gt911_touch_down(buf, read_id, input_x, input_y, input_w);</em>
|
||
cst826_touch_down(buf, read_id, input_x, input_y);
|
||
}
|
||
} <strong class="hl-keyword">else</strong> <strong class="hl-keyword">if</strong> (pre_touch) {
|
||
<strong class="hl-keyword">for</strong> (read_index = <span class="hl-number">0</span>; read_index < pre_touch; read_index++) {
|
||
<em class="hl-comment">//gt911_touch_up(buf, pre_id[read_index]);</em>
|
||
cst826_touch_up(buf, pre_id[read_index]);
|
||
}
|
||
}
|
||
|
||
pre_touch = touch_num;
|
||
|
||
exit_:
|
||
<em class="hl-comment">//write_buf[0] = (rt_uint8_t)((GT911_READ_STATUS >> 8) & 0xFF);</em>
|
||
<em class="hl-comment">//write_buf[1] = (rt_uint8_t)(GT911_READ_STATUS & 0xFF);</em>
|
||
<em class="hl-comment">//write_buf[2] = 0x00;</em>
|
||
<em class="hl-comment">//gt911_write_reg(&gt911_client, write_buf, 3);</em>
|
||
|
||
<strong class="hl-keyword">return</strong> read_num;
|
||
}
|
||
<em class="hl-comment">/*
|
||
* TP 的控制函数，一般来说只需要实现 RT_TOUCH_CTRL_GET_INFO，所以 cst826 只实现了这个 case
|
||
*/</em>
|
||
<em class="hl-comment">//static rt_err_t gt911_control(struct rt_touch_device *touch, int cmd, void *arg)</em>
|
||
<strong class="hl-keyword">static</strong> rt_err_t cst826_control(<strong class="hl-keyword">struct</strong> rt_touch_device *touch, <strong class="hl-keyword">int</strong> cmd, <strong class="hl-keyword">void</strong> *data)
|
||
{
|
||
<em class="hl-comment">// if (cmd == RT_TOUCH_CTRL_GET_ID) {</em>
|
||
<em class="hl-comment">// return gt911_get_product_id(&gt911_client, arg, 6);</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// if (cmd == RT_TOUCH_CTRL_GET_INFO) {</em>
|
||
<em class="hl-comment">// return gt911_get_info(&gt911_client, arg);</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// rt_uint8_t buf[4];</em>
|
||
<em class="hl-comment">// rt_uint8_t i = 0;</em>
|
||
<em class="hl-comment">// rt_uint8_t *config;</em>
|
||
|
||
<em class="hl-comment">// config =</em>
|
||
<em class="hl-comment">// (rt_uint8_t *)rt_calloc(1, sizeof(GT911_CFG_TBL) + GT911_REGITER_LEN);</em>
|
||
<em class="hl-comment">// if (config == RT_NULL) {</em>
|
||
<em class="hl-comment">// LOG_D("malloc config memory failed\n");</em>
|
||
<em class="hl-comment">// return -RT_ERROR;</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// config[0] = (rt_uint8_t)((GT911_CONFIG_REG >> 8) & 0xFF);</em>
|
||
<em class="hl-comment">// config[1] = (rt_uint8_t)(GT911_CONFIG_REG & 0xFF);</em>
|
||
|
||
<em class="hl-comment">// memcpy(&config[2], GT911_CFG_TBL, sizeof(GT911_CFG_TBL));</em>
|
||
|
||
<em class="hl-comment">// switch (cmd) {</em>
|
||
<em class="hl-comment">// case RT_TOUCH_CTRL_SET_X_RANGE: {</em>
|
||
<em class="hl-comment">// rt_uint16_t x_range;</em>
|
||
|
||
<em class="hl-comment">// x_range = *(rt_uint16_t *)arg;</em>
|
||
<em class="hl-comment">// config[4] = (rt_uint8_t)(x_range >> 8);</em>
|
||
<em class="hl-comment">// config[3] = (rt_uint8_t)(x_range & 0xff);</em>
|
||
|
||
<em class="hl-comment">// GT911_CFG_TBL[2] = config[4];</em>
|
||
<em class="hl-comment">// GT911_CFG_TBL[1] = config[3];</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// case RT_TOUCH_CTRL_SET_Y_RANGE: {</em>
|
||
<em class="hl-comment">// rt_uint16_t y_range;</em>
|
||
|
||
<em class="hl-comment">// y_range = *(rt_uint16_t *)arg;</em>
|
||
<em class="hl-comment">// config[6] = (rt_uint8_t)(y_range >> 8);</em>
|
||
<em class="hl-comment">// config[5] = (rt_uint8_t)(y_range & 0xff);</em>
|
||
|
||
<em class="hl-comment">// GT911_CFG_TBL[4] = config[6];</em>
|
||
<em class="hl-comment">// GT911_CFG_TBL[3] = config[5];</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// case RT_TOUCH_CTRL_SET_X_TO_Y: {</em>
|
||
<em class="hl-comment">// config[8] ^= (1 << 3);</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// case RT_TOUCH_CTRL_SET_MODE: {</em>
|
||
<em class="hl-comment">// rt_uint16_t trig_type;</em>
|
||
<em class="hl-comment">// trig_type = *(rt_uint16_t *)arg;</em>
|
||
|
||
<em class="hl-comment">// switch (trig_type) {</em>
|
||
<em class="hl-comment">// case RT_DEVICE_FLAG_INT_RX:</em>
|
||
<em class="hl-comment">// config[8] &= 0xFC;</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// case RT_DEVICE_FLAG_RDONLY:</em>
|
||
<em class="hl-comment">// config[8] &= 0xFC;</em>
|
||
<em class="hl-comment">// config[8] |= 0x02;</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// default:</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// default: {</em>
|
||
<em class="hl-comment">// break;</em>
|
||
<em class="hl-comment">// }</em>
|
||
<em class="hl-comment">// }</em>
|
||
<strong class="hl-keyword">switch</strong>(cmd)
|
||
{
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_GET_ID:
|
||
<strong class="hl-keyword">break</strong>;
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_GET_INFO:
|
||
info = (<strong class="hl-keyword">struct</strong> rt_touch_info *)data;
|
||
<strong class="hl-keyword">if</strong> (info == RT_NULL)
|
||
<strong class="hl-keyword">return</strong> -RT_EINVAL;
|
||
|
||
info->point_num = touch->info.point_num;
|
||
info->range_x = touch->info.range_x;
|
||
info->range_y = touch->info.range_y;
|
||
info->type = touch->info.type;
|
||
info->vendor = touch->info.vendor;
|
||
<strong class="hl-keyword">break</strong>;
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_SET_MODE:
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_SET_X_RANGE:
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_SET_Y_RANGE:
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_SET_X_TO_Y:
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_DISABLE_INT:
|
||
<strong class="hl-keyword">case</strong> RT_TOUCH_CTRL_ENABLE_INT:
|
||
<strong class="hl-keyword">default</strong>:
|
||
<strong class="hl-keyword">break</strong>;
|
||
}
|
||
|
||
<em class="hl-comment">// if (gt911_write_reg(&gt911_client, config,</em>
|
||
<em class="hl-comment">// sizeof(GT911_CFG_TBL) + GT911_ADDR_LEN) != RT_EOK) {</em>
|
||
<em class="hl-comment">// LOG_D("send config failed");</em>
|
||
<em class="hl-comment">// return -1;</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// buf[0] = (rt_uint8_t)((GT911_CHECK_SUM >> 8) & 0xFF);</em>
|
||
<em class="hl-comment">// buf[1] = (rt_uint8_t)(GT911_CHECK_SUM & 0xFF);</em>
|
||
<em class="hl-comment">// buf[2] = 0;</em>
|
||
|
||
<em class="hl-comment">// for (i = GT911_ADDR_LEN; i < sizeof(GT911_CFG_TBL) + GT911_ADDR_LEN; i++) {</em>
|
||
<em class="hl-comment">// buf[GT911_ADDR_LEN] += config[i];</em>
|
||
<em class="hl-comment">// }</em>
|
||
|
||
<em class="hl-comment">// buf[2] = (~buf[2]) + 1;</em>
|
||
<em class="hl-comment">// buf[3] = 1;</em>
|
||
|
||
<em class="hl-comment">// gt911_write_reg(&gt911_client, buf, 4);</em>
|
||
<em class="hl-comment">// rt_free(config);</em>
|
||
|
||
<strong class="hl-keyword">return</strong> RT_EOK;
|
||
}
|
||
|
||
<em class="hl-comment">//static struct rt_touch_ops gt911_touch_ops = {</em>
|
||
<em class="hl-comment">// .touch_readpoint = gt911_read_point,</em>
|
||
<em class="hl-comment">// .touch_control = gt911_control,</em>
|
||
<em class="hl-comment">//};</em>
|
||
|
||
<em class="hl-comment">/*
|
||
* rt_touch_ops，主要是完成对读坐标和控制 TP 的函数注册
|
||
*/</em>
|
||
<strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> rt_touch_ops cst826_touch_ops =
|
||
{
|
||
.touch_readpoint = cst826_read_point,
|
||
.touch_control = cst826_control,
|
||
};
|
||
|
||
<em class="hl-comment">/*
|
||
* rt_touch_info 结构体是和 get_info 那个函数作用一致，无法从寄存器获取 TP 参数时可以通过这个结构体手动配置
|
||
*/</em>
|
||
<strong class="hl-keyword">struct</strong> rt_touch_info cst826_info =
|
||
{
|
||
RT_TOUCH_TYPE_CAPACITANCE,
|
||
RT_TOUCH_VENDOR_UNKNOWN,
|
||
<span class="hl-number">2</span>,
|
||
(rt_int32_t)AIC_TOUCH_PANEL_CST826_X_RANGE,
|
||
(rt_int32_t)AIC_TOUCH_PANEL_CST826_Y_RANGE,
|
||
};
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个函数主要实现对 TP 的初始操作
|
||
*/</em>
|
||
<em class="hl-comment">//static int rt_hw_gt911_init(const char *name, struct rt_touch_config *cfg)</em>
|
||
<strong class="hl-keyword">int</strong> cst826_hw_init(<strong class="hl-keyword">const</strong> <strong class="hl-keyword">char</strong> *name, <strong class="hl-keyword">struct</strong> rt_touch_config *cfg)
|
||
{
|
||
<strong class="hl-keyword">struct</strong> rt_touch_device *touch_device = RT_NULL;
|
||
|
||
touch_device =
|
||
(<strong class="hl-keyword">struct</strong> rt_touch_device *)rt_malloc(<strong class="hl-keyword">sizeof</strong>(<strong class="hl-keyword">struct</strong> rt_touch_device));
|
||
<strong class="hl-keyword">if</strong> (touch_device == RT_NULL) {
|
||
LOG_E(<span class="hl-string">"touch device malloc fail"</span>);
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
rt_memset((<strong class="hl-keyword">void</strong> *)touch_device, <span class="hl-number">0</span>, <strong class="hl-keyword">sizeof</strong>(<strong class="hl-keyword">struct</strong> rt_touch_device));
|
||
|
||
<em class="hl-comment">/* hw init*/</em>
|
||
<em class="hl-comment">// rst output 0</em>
|
||
<em class="hl-comment">//rt_pin_mode(*(rt_uint8_t *)cfg->user_data, PIN_MODE_OUTPUT);</em>
|
||
<em class="hl-comment">//rt_pin_write(*(rt_uint8_t *)cfg->user_data, PIN_LOW);</em>
|
||
<em class="hl-comment">//rt_thread_delay(10);</em>
|
||
<em class="hl-comment">// irq output 0</em>
|
||
<em class="hl-comment">//rt_pin_mode(cfg->irq_pin.pin, PIN_MODE_OUTPUT);</em>
|
||
<em class="hl-comment">//rt_pin_write(cfg->irq_pin.pin, PIN_LOW);</em>
|
||
<em class="hl-comment">//rt_thread_delay(2);</em>
|
||
<em class="hl-comment">// rst output 1</em>
|
||
<em class="hl-comment">//rt_pin_mode(*(rt_uint8_t *)cfg->user_data, PIN_MODE_OUTPUT);</em>
|
||
<em class="hl-comment">//rt_pin_write(*(rt_uint8_t *)cfg->user_data, PIN_HIGH);</em>
|
||
<em class="hl-comment">//rt_thread_delay(5);</em>
|
||
<em class="hl-comment">// rst input</em>
|
||
<em class="hl-comment">//rt_pin_mode(*(rt_uint8_t *)cfg->user_data, PIN_MODE_INPUT);</em>
|
||
<em class="hl-comment">//irq output 0</em>
|
||
<em class="hl-comment">//rt_pin_mode(cfg->irq_pin.pin, PIN_MODE_OUTPUT);</em>
|
||
<em class="hl-comment">//rt_pin_write(cfg->irq_pin.pin, PIN_LOW);</em>
|
||
<em class="hl-comment">//rt_thread_delay(50);</em>
|
||
<em class="hl-comment">//rt_pin_mode(cfg->irq_pin.pin, PIN_MODE_INPUT);</em>
|
||
|
||
<em class="hl-comment">//这里时 TP 初始化时的上电时序，要根据规格书来进行配置</em>
|
||
rt_pin_mode(*(rt_uint8_t *)cfg->user_data, PIN_MODE_OUTPUT);
|
||
rt_pin_write(*(rt_uint8_t *)cfg->user_data, PIN_HIGH);
|
||
rt_thread_delay(<span class="hl-number">10</span>);
|
||
|
||
rt_pin_mode(*(rt_uint8_t *)cfg->user_data, PIN_MODE_OUTPUT);
|
||
rt_pin_write(*(rt_uint8_t *)cfg->user_data, PIN_LOW);
|
||
rt_thread_delay(<span class="hl-number">10</span>);
|
||
|
||
rt_pin_mode(*(rt_uint8_t *)cfg->user_data, PIN_MODE_OUTPUT);
|
||
rt_pin_write(*(rt_uint8_t *)cfg->user_data, PIN_HIGH);
|
||
rt_thread_delay(<span class="hl-number">100</span>);
|
||
|
||
|
||
<em class="hl-comment">//gt911_client.bus = (struct rt_i2c_bus_device *)rt_device_find(cfg->dev_name);</em>
|
||
<em class="hl-comment">//if (gt911_client.bus == RT_NULL) {</em>
|
||
<em class="hl-comment">// LOG_E("Can't find %s device", cfg->dev_name);</em>
|
||
<em class="hl-comment">// return -RT_ERROR;</em>
|
||
<em class="hl-comment">//}</em>
|
||
cst826_client.bus = (<strong class="hl-keyword">struct</strong> rt_i2c_bus_device *)rt_device_find(cfg->dev_name);
|
||
<strong class="hl-keyword">if</strong> (cst826_client.bus == RT_NULL) {
|
||
LOG_E(<span class="hl-string">"Can't find %s device"</span>, cfg->dev_name);
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
|
||
<strong class="hl-keyword">if</strong> (rt_device_open((rt_device_t)gt911_client.bus, RT_DEVICE_FLAG_RDWR) !=
|
||
RT_EOK) {
|
||
LOG_E(<span class="hl-string">"open %s device failed"</span>, cfg->dev_name);
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
|
||
<em class="hl-comment">//gt911_client.client_addr = GT911_ADDRESS_HIGH;</em>
|
||
cst826_client.client_addr = CST826_SALVE_ADDR;
|
||
<em class="hl-comment">/* register touch device */</em>
|
||
touch_device->info = cst826_info; <em class="hl-comment">//这里就是手动配置 TP 信息赋值的地方，如果这里有赋值就不需要实现 get_info 这个函数</em>
|
||
<em class="hl-comment">//touch_device->info.type = RT_TOUCH_TYPE_CAPACITANCE;</em>
|
||
<em class="hl-comment">//touch_device->info.vendor = RT_TOUCH_VENDOR_GT;</em>
|
||
rt_memcpy(&touch_device->config, cfg, <strong class="hl-keyword">sizeof</strong>(<strong class="hl-keyword">struct</strong> rt_touch_config));
|
||
<em class="hl-comment">//touch_device->ops = &gt911_touch_ops;</em>
|
||
touch_device->ops = &cst826_touch_ops;
|
||
|
||
<strong class="hl-keyword">if</strong> (RT_EOK != rt_hw_touch_register(touch_device, name, RT_DEVICE_FLAG_INT_RX, RT_NULL)) {
|
||
<em class="hl-comment">//LOG_E("touch device gt911 init failed !!!");</em>
|
||
LOG_E(<span class="hl-string">"touch device cst826 init failed !!!"</span>);
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
|
||
<em class="hl-comment">//LOG_I("touch device gt911 init success");</em>
|
||
LOG_I(<span class="hl-string">"touch device cst826 init success"</span>);
|
||
<strong class="hl-keyword">return</strong> RT_EOK;
|
||
}
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个函数主要实现对 GPIO 的初始化，这个函数只需修改函数名即可复用
|
||
*/</em>
|
||
<em class="hl-comment">//static int rt_gt911_gpio_cfg()</em>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">int</strong> cst826_gpio_cfg()
|
||
{
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> g, p;
|
||
<strong class="hl-keyword">long</strong> pin;
|
||
|
||
<em class="hl-comment">// RST</em>
|
||
pin = drv_pin_get(AIC_TOUCH_PANEL_RST_PIN);
|
||
g = GPIO_GROUP(pin);
|
||
p = GPIO_GROUP_PIN(pin);
|
||
hal_gpio_direction_input(g, p);
|
||
|
||
<em class="hl-comment">// INT</em>
|
||
pin = drv_pin_get(AIC_TOUCH_PANEL_INT_PIN);
|
||
g = GPIO_GROUP(pin);
|
||
p = GPIO_GROUP_PIN(pin);
|
||
hal_gpio_direction_input(g, p);
|
||
hal_gpio_set_irq_mode(g, p, <span class="hl-number">0</span>);
|
||
|
||
<strong class="hl-keyword">return</strong> <span class="hl-number">0</span>;
|
||
}
|
||
|
||
<em class="hl-comment">/*
|
||
* 这个函数主要注册整个设备，改个名字和里面的函数调用名即可复用,
|
||
*/</em>
|
||
<em class="hl-comment">//static int rt_hw_gt911_port(void)</em>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">int</strong> rt_hw_cst826_port(<strong class="hl-keyword">void</strong>)
|
||
{
|
||
<strong class="hl-keyword">struct</strong> rt_touch_config cfg;
|
||
rt_uint8_t rst_pin;
|
||
|
||
<em class="hl-comment">//rt_gt911_gpio_cfg();</em>
|
||
cst826_gpio_cfg();
|
||
|
||
rst_pin = drv_pin_get(AIC_TOUCH_PANEL_RST_PIN);
|
||
cfg.dev_name = AIC_TOUCH_PANEL_I2C_CHAN;
|
||
cfg.irq_pin.pin = drv_pin_get(AIC_TOUCH_PANEL_INT_PIN);
|
||
cfg.irq_pin.mode = PIN_MODE_INPUT;
|
||
cfg.user_data = &rst_pin;
|
||
#ifdef AIC_PM_DEMO
|
||
rt_pm_set_pin_wakeup_source(cfg.irq_pin.pin);
|
||
#endif
|
||
|
||
rt_hw_gt911_init(AIC_TOUCH_PANEL_NAME, &cfg);
|
||
|
||
<strong class="hl-keyword">return</strong> <span class="hl-number">0</span>;
|
||
}
|
||
|
||
<em class="hl-comment">//INIT_DEVICE_EXPORT(rt_hw_gt911_port);</em>
|
||
INIT_DEVICE_EXPORT(rt_hw_cst826_port);
|
||
</pre>
|
||
</div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d56986e143__20250519091508">
|
||
<p class="- topic/p p" data-ofbid="d56986e145__20250519091508"><strong class="+ topic/ph hi-d/b ph b">修改源代码<span class="+ topic/ph sw-d/filepath ph filepath">gt911.h</span> 文件如下</strong></p>
|
||
<p class="- topic/p p" data-ofbid="d56986e152__20250519091508">修改前：</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_fd3_nhq_w2c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_fd3_nhq_w2c">#ifndef __GT911_H__
|
||
#<span class="hl-directive">define</span> __GT911_H__
|
||
|
||
#include <span class="hl-string">"drivers/touch.h"</span>
|
||
#include <aic_hal_gpio.h>
|
||
#include <aic_drv_gpio.h>
|
||
|
||
#<span class="hl-directive">define</span> GT911_ADDR_LEN <span class="hl-number">2</span>
|
||
#<span class="hl-directive">define</span> GT911_REGITER_LEN <span class="hl-number">2</span>
|
||
#<span class="hl-directive">define</span> GT911_MAX_TOUCH <span class="hl-number">5</span>
|
||
#<span class="hl-directive">define</span> GT911_POINT_INFO_NUM <span class="hl-number">8</span>
|
||
|
||
#<span class="hl-directive">define</span> GT911_ADDRESS_HIGH <span class="hl-number">0x5D</span>
|
||
#<span class="hl-directive">define</span> GT911_ADDRESS_LOW <span class="hl-number">0x14</span>
|
||
|
||
#<span class="hl-directive">define</span> GT911_COMMAND_REG <span class="hl-number">0x8040</span>
|
||
#<span class="hl-directive">define</span> GT911_CONFIG_REG <span class="hl-number">0x8047</span>
|
||
#<span class="hl-directive">define</span> GT911_MOD_SWT_REG <span class="hl-number">0x804D</span>
|
||
|
||
#<span class="hl-directive">define</span> GT911_PRODUCT_ID <span class="hl-number">0x8140</span>
|
||
#<span class="hl-directive">define</span> GT911_VENDOR_ID <span class="hl-number">0x814A</span>
|
||
#<span class="hl-directive">define</span> GT911_READ_STATUS <span class="hl-number">0x814E</span>
|
||
|
||
#<span class="hl-directive">define</span> GT911_POINT1_REG <span class="hl-number">0x814F</span>
|
||
#<span class="hl-directive">define</span> GT911_POINT2_REG <span class="hl-number">0x8157</span>
|
||
#<span class="hl-directive">define</span> GT911_POINT3_REG <span class="hl-number">0x815F</span>
|
||
#<span class="hl-directive">define</span> GT911_POINT4_REG <span class="hl-number">0x8167</span>
|
||
#<span class="hl-directive">define</span> GT911_POINT5_REG <span class="hl-number">0x816F</span>
|
||
|
||
#<span class="hl-directive">define</span> GT911_CHECK_SUM <span class="hl-number">0x80FF</span>
|
||
|
||
#endif <em class="hl-comment">/* gt911.h */</em></pre>
|
||
<p class="- topic/p p" data-ofbid="d56986e158__20250519091508">修改后：</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="touch_revise_existing_gt911_drive__codeblock_ffv_4hq_w2c" data-ofbid="touch_revise_existing_gt911_drive__codeblock_ffv_4hq_w2c">#ifndef __CST826_H__
|
||
#<span class="hl-directive">define</span> __CST826_H__
|
||
|
||
#include <aic_hal_gpio.h>
|
||
#include <aic_drv_gpio.h>
|
||
#include <span class="hl-string">"drivers/touch.h"</span>
|
||
|
||
#<span class="hl-directive">define</span> CST826_MAX_TOUCH <span class="hl-number">2</span>
|
||
#<span class="hl-directive">define</span> CST826_POINT_LEN <span class="hl-number">6</span>
|
||
#<span class="hl-directive">define</span> CST826_SALVE_ADDR <span class="hl-number">0x15</span>
|
||
<em class="hl-comment">/* cst826 reg */</em>
|
||
#<span class="hl-directive">define</span> CST826_WORK_MODE <span class="hl-number">0x00</span>
|
||
#<span class="hl-directive">define</span> CST826_PROX_STATE <span class="hl-number">0x01</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH_NUM <span class="hl-number">0x02</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH1_XH <span class="hl-number">0x03</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH1_XL <span class="hl-number">0x04</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH1_YH <span class="hl-number">0x05</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH1_YL <span class="hl-number">0x06</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH1_PRES <span class="hl-number">0x07</span>
|
||
#<span class="hl-directive">define</span> CST826_TOUCH1_AREA <span class="hl-number">0x08</span>
|
||
#<span class="hl-directive">define</span> CST826_SLEEP_MODE <span class="hl-number">0xA5</span>
|
||
#<span class="hl-directive">define</span> CST826_FW_VERSION1 <span class="hl-number">0xA6</span>
|
||
#<span class="hl-directive">define</span> CST826_FW_VERSION2 <span class="hl-number">0xA7</span>
|
||
#<span class="hl-directive">define</span> CST826_MODULE_ID <span class="hl-number">0xA8</span>
|
||
#<span class="hl-directive">define</span> CST826_PROJECT_NAME <span class="hl-number">0xA9</span>
|
||
#<span class="hl-directive">define</span> CST826_CHIP_TYPE1 <span class="hl-number">0xAA</span>
|
||
#<span class="hl-directive">define</span> CST826_CHIP_TYPE2 <span class="hl-number">0xAB</span>
|
||
#<span class="hl-directive">define</span> CST826_CHECKSUM1 <span class="hl-number">0xAC</span>
|
||
#<span class="hl-directive">define</span> CST826_CHECKSUM2 <span class="hl-number">0xAD</span>
|
||
#<span class="hl-directive">define</span> CST826_PROX_MODE <span class="hl-number">0xB0</span>
|
||
#<span class="hl-directive">define</span> CST826_GES_MODE <span class="hl-number">0xD0</span>
|
||
#<span class="hl-directive">define</span> CST826_GESTURE_ID <span class="hl-number">0xD3</span>
|
||
|
||
#<span class="hl-directive">define</span> AIC_TOUCH_PANEL_CST826_X_RANGE <span class="hl-number">480</span>
|
||
#<span class="hl-directive">define</span> AIC_TOUCH_PANEL_CST826_Y_RANGE <span class="hl-number">272</span>
|
||
|
||
#endif</pre>
|
||
</li>
|
||
</ol></div>
|
||
</div>
|
||
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|
||
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|
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<div class="generation_time">
|
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Update Time: 2025-05-19
|
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