嵌入式Linux-2.6.32移植-触摸屏

嵌入式Linux-2.6.32移植-触摸屏

主机：RHEL6.0(2.6.32-220.2.1.el6.i686)

开发板：FL2440

编译器:arm-unknown-linux-gnueabi-gcc-4.4.6

1.拷贝s3c2410_ts.c到linux-2.6.32.59/drivers/input/touchscreen

2.修改drivers/input/touchscreen/Makefile文件，添加如下:

obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o

3. 修改drivers/input/touchscreen/Kconfig文件,添加如下:

config TOUCHSCREEN_S3C2410

tristate "Samsung S3C2410 touchscreen input driver"

depends on ARCH_S3C2440 && INPUT && INPUT_TOUCHSCREEN

select SERIO

help

Say Y here if you have the s3c2410 touchscreen.

If unsure, say N.

To compile this driver as a module, choose M here: the

module will be called s3c2410_ts.

config TOUCHSCREEN_S3C2410_DEBUG

boolean "Samsung S3C2410 touchscreen debug messages"

depends on TOUCHSCREEN_S3C2410

help

Select this if you want debug messages

4.注册ts设备

@@@arch/arm/mach-s3c2440/mach-smdk2440.c

##添加头文件

#include

##添加设备信息

/*Config for TouchScreen*/

static struct s3c2410_ts_mach_info smdk2410_ts_cfg __initdata = {

.delay = 20000,

.presc = 49,

.oversampling_shift = 2,

};

##注册设备

&s3c_device_iis,

+ &s3c_device_ts,

##添加到初始化

s3c24xx_fb_set_platdata(&smdk2440_fb_info);

+ set_s3c2410ts_info(&smdk2410_ts_cfg);

#增加平台信息

@@@arch/arm/plat-s3c24xx/devs.c

##增加头文件

#include

##增加函数

/* Touchscreen */

struct platform_device s3c_device_ts = {

.name = "s3c2410-ts",

.id = -1,

};

EXPORT_SYMBOL(s3c_device_ts);

static struct s3c2410_ts_mach_info s3c2410ts_info;

void set_s3c2410ts_info(struct s3c2410_ts_mach_info *hard_s3c2410ts_info)

{

memcpy(&s3c2410ts_info,hard_s3c2410ts_info,sizeof(struct s3c2410_ts_mach_info));

s3c_device_ts.dev.platform_data = &s3c2410ts_info;

}

EXPORT_SYMBOL(set_s3c2410ts_info);

##在头文件声明

@@@ arch/arm/plat-s3c/include/plat/devs.h

extern struct platform_device s3c_device_usb_hsotg;

+extern struct platform_device s3c_device_ts;

##注册设备名

@@@arch/arm/plat-s3c24xx/s3c244x.c

s3c_device_nand.name = "s3c2440-nand";

+ s3c_device_ts.name = "s3c2440-ts";

s3c_device_usbgadget.name = "s3c2440-usbgadget";

至此，触摸屏设备ts移植成功