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📄 触摸屏驱动移植 - 中国电子前沿--嵌入式咨询网站平台，嵌入式系统,单片机,dsp,arm,eda,fpga,nios ii,linux,unix,wince,vxwork,uc-os,开发板,测试测量,元器件,电源,微电子,半导体.htm

📁 S3C44B0x下的ADS7843触摸屏驱动资料与代码
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            </SPAN>controller</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>*</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>*/</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <LINUX /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <ASM /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <ASM /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <ASM /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <ASM /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <ASM /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#include <ASM /></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>/* For ts.dev.id.version 
            */</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#define S3C2410TSVERSION<SPAN> 
            </SPAN>0x0101</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#define WAIT4INT(x)<SPAN> 
            </SPAN>(((x)&lt;&lt;8) | \</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>S3C2410_ADCTSC_YM_SEN | 
            S3C2410_ADCTSC_YP_SEN | S3C2410_ADCTSC_XP_SEN | \</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>S3C2410_ADCTSC_XY_PST(3))</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#define AUTOPST<SPAN> 
            </SPAN><SPAN></SPAN>(S3C2410_ADCTSC_YM_SEN | S3C2410_ADCTSC_YP_SEN | 
            S3C2410_ADCTSC_XP_SEN | \</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>S3C2410_ADCTSC_AUTO_PST | 
            S3C2410_ADCTSC_XY_PST(0))</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>//#define DEBUG_LVL<SPAN> 
            </SPAN>KERN_DEBUG</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#define DEBUG_LVL<SPAN> 
            </SPAN>KERN_ALERT</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>MODULE_AUTHOR("Arnaud Patard 
            <ARNAUD.PATARD @rtp-net.org="">");</ARNAUD.PATARD></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>MODULE_DESCRIPTION("s3c2410 
            touchscreen driver");</SPAN></P>
            <P class=MsoNormal><SPAN 
lang=EN-US>MODULE_LICENSE("GPL");</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>/*</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>* Definitions &amp; 
            global arrays.</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>*/</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>static char *s3c2410ts_name = 
            "s3c2410 TouchScreen";</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>/*</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>* Per-touchscreen 
            data.</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>*/</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>struct s3c2410ts {</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>struct input_dev 
            dev;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>long xp;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>long yp;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>int 
            count;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>int 
            shift;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>char 
            phys[32];</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>};</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>static struct s3c2410ts 
            ts;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>static void __iomem 
            *base_addr;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>static inline void 
            s3c2410_ts_connect(void)</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>{</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN>s3c2410_gpio_cfgpin(S3C2410_GPG12, 
            S3C2410_GPG12_XMON);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN>s3c2410_gpio_cfgpin(S3C2410_GPG13, 
            S3C2410_GPG13_nXPON);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN>s3c2410_gpio_cfgpin(S3C2410_GPG14, 
            S3C2410_GPG14_YMON);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN>s3c2410_gpio_cfgpin(S3C2410_GPG15, 
            S3C2410_GPG15_nYPON);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>}</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>static void 
            touch_timer_fire(unsigned long data)</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>{</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>unsigned long 
            data0;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>unsigned long 
            data1;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>int 
            updown;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>data0 = 
            readl(base_addr+S3C2410_ADCDAT0);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>data1 = 
            readl(base_addr+S3C2410_ADCDAT1);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>if (updown) 
            {</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>if (ts.count != 0) 
            {</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN><SPAN></SPAN>ts.xp 
            &gt;&gt;= ts.shift;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN><SPAN></SPAN>ts.yp 
            &gt;&gt;= ts.shift;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#ifdef 
            CONFIG_TOUCHSCREEN_S3C2410_DEBUG</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>{</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN><SPAN></SPAN>struct 
            timeval tv;</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>do_gettimeofday(&amp;tv);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>printk(DEBUG_LVL "T: %06d, X: 
            %03ld, Y: %03ld\n", (int)tv.tv_usec, ts.xp, ts.yp);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>}</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>#endif</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_report_abs(&amp;ts.dev, 
            ABS_X, ts.xp);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_report_abs(&amp;ts.dev, 
            ABS_Y, ts.yp);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_report_key(&amp;ts.dev, 
            BTN_TOUCH, 1);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_report_abs(&amp;ts.dev, 
            ABS_PRESSURE, 1);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_sync(&amp;ts.dev);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>}</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>ts.xp = 
            0;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>ts.yp = 
            0;</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>ts.count = 0;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>writel(S3C2410_ADCTSC_PULL_UP_DISABLE 
            | AUTOPST, base_addr+S3C2410_ADCTSC);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>writel(readl(base_addr+S3C2410_ADCCON) 
            | S3C2410_ADCCON_ENABLE_START, base_addr+S3C2410_ADCCON);</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US><SPAN></SPAN>} else {</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>ts.count = 0;</SPAN></P>
            <P class=MsoNormal><SPAN lang=EN-US>&lt;!--[if 
            !supportEmptyParas]--&gt; &lt;!--[endif]--&gt;<O:P></O:P></SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_report_key(&amp;ts.dev, 
            BTN_TOUCH, 0);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_report_abs(&amp;ts.dev, 
            ABS_PRESSURE, 0);</SPAN></P>
            <P class=MsoNormal><SPAN 
            lang=EN-US><SPAN></SPAN><SPAN></SPAN>input_sync(&amp;ts.dev);</SPAN></P>
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