📄 2_6内核lcd驱动移植 - 我的文章 - we need more tips.htm
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color=#02368d><B>2.6内核LCD驱动移植</B></FONT></B></FONT><BR></TD></TR>
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<TD align=middle width=40>文件:</TD>
<TD>s3c2410fb_driver.rar</TD></TR>
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<TD align=middle width=40>大小:</TD>
<TD>7KB</TD></TR>
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<TD align=middle width=40>下载:</TD>
<TD><A
href="http://blog.chinaunix.net/upfile/070815002732.rar">下载</A></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV>
<DIV>开发板nano2410上带了一块三星的LTV350QV-F05触摸屏，之前已经把触摸屏的驱动移植上去了，并能在</DIV>
<DIV>MINICOM上显示调试信息，x,y的坐标。后来移植qtopia的时候才弄明白，触摸驱动和LCD驱动是两回事，都</DIV>
<DIV>需要移植。原来开发板上带的驱动是针对2.4内核，现在使用2.6内核，这款lcd的特点是驱动ic内置在lcd模</DIV>
<DIV>块上，所以不用外接lpc3600等驱动ic．它提供一个60
pin的软平线接口出来．这个接口和2410可以直接连</DIV>
<DIV>接．接口内包含一个spi口，用来给lcd模块写寄存器,初始化lcd模块.因此,2.6.14的驱动内需要加上一些代</DIV>
<DIV>码来完成这项工作.可能某些lcd是不需要这个初始化的,那样的话移植会更简单.<BR>下面是需要修改的文件：</DIV>
<DIV>在/linux/arch/arm/mach-s3c2410/mach-smdk2410.c中添加如下内容。</DIV>
<DIV>static struct s3c2410fb_mach_info
smdk2410_lcdcfg __initdata =
{<BR> .regs = {<BR> .lcdcon1
= S3C2410_LCDCON1_TFT16BPP |
\<BR> S3C2410_LCDCON1_TFT |
\<BR> S3C2410_LCDCON1_CLKVAL(0x03),</DIV>
<DIV> .lcdcon2
= S3C2410_LCDCON2_VBPD(3) |
\<BR> S3C2410_LCDCON2_LINEVAL(239)
|
\<BR> S3C2410_LCDCON2_VFPD(5)
|
\<BR> S3C2410_LCDCON2_VSPW(15),</DIV>
<DIV> .lcdcon3
= S3C2410_LCDCON3_HBPD(5) |
\<BR> S3C2410_LCDCON3_HOZVAL(319)
|
\<BR> S3C2410_LCDCON3_HFPD(15),</DIV>
<DIV> .lcdcon4
= S3C2410_LCDCON4_MVAL(13) |
\<BR> S3C2410_LCDCON4_HSPW(8),</DIV>
<DIV> .lcdcon5
= S3C2410_LCDCON5_FRM565
|<BR> S3C2410_LCDCON5_INVVLINE
|<BR> S3C2410_LCDCON5_INVVFRAME
|<BR> S3C2410_LCDCON5_PWREN
|<BR> S3C2410_LCDCON5_HWSWP,<BR> },</DIV>
<DIV> .lpcsel = 0xf82,</DIV>
<DIV> .gpccon
= 0xaa955699,<BR> .gpccon_mask
= 0xffc003cc,<BR> .gpcup
= 0x0000ffff,<BR> .gpcup_mask
= 0xffffffff,</DIV>
<DIV> .gpdcon
= 0xaa95aaa1,<BR> .gpdcon_mask
= 0xffc0fff0,<BR> .gpdup
= 0x0000faff,<BR> .gpdup_mask
= 0xffffffff,</DIV>
<DIV> .fixed_syncs
= 1,<BR> .width
= 320,<BR> .height = 240,</DIV>
<DIV> .xres = {<BR> .min
= 320,<BR> .max
= 320,<BR> .defval
= 320,<BR> },</DIV>
<DIV> .yres = {<BR> .max
= 240,<BR> .min
= 240,<BR> .defval = 240,<BR> },</DIV>
<DIV> .bpp = {<BR> .min
= 16,<BR> .max
= 16,<BR> .defval
= 16,<BR> },<BR>};</DIV>
<DIV>然后在static void __init
smdk2410_map_io(void)中添加 </DIV>
<DIV>set_s3c2410fb_info(&smdk2410_lcdcfg);
</DIV>
<DIV>添加头文件</DIV>
<DIV>#include
<asm/arch/regs-gpio.h><BR>#include
<asm/arch/regs-lcd.h><BR>#include
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