Touch screen driver transplantation based on s3c2410

Create a new file s3c2410_ts.c in the linux2.6.14/drivers/input/touchscreen directory. We can refer to similar touch screen drivers for driver files. For specific content, please refer to the source code provided on the website or CD.

   First: modify the makefile file in the linux2.6.14/drivers/input/touchscreen directory and add the following to the end of the file:

obj-$(CONFIG_TOUCHSCREEN_S3C2410) += hfrk_s3c2410_ts.o

Second: Add in linux2.6.14/ drivers/input/touchscreen/Kconfig:

     config TOUCHSCREEN_S

     tristate "Samsung S3C2410 touchscreen input driver"

     depends on ARCH_SMDK2410 && 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

Configure the kernel and select these configurations

Device drivers - to

          Input device support at

                     Touchscreens at

                      <*>Samsung S3C2410 touchscreen input driver

                      []Samsung s3c2410 touchscreen debug message

Third: Add the following content to /linux-2.6.14/arch/arm/mach-s3c2410/mach-smdk2410.c:

     static struct s3c2410_ts_mach_info sbc2410_ts_cfg __initdata = {

     .delay = 10000,

     .almost = 49,

     .oversampling_shift = 2,

     };

     In the smdk2410_devices structure, add:

     &s3c_device_ts,

     Add in smdk2410_map_io function:

     set_s3c2410ts_info(&sbc2410_ts_cfg);

Fourth: Add in the /linux-2.6.14/arch/arm/mach-s3c2410/devs.h file:

     extern struct platform_device s3c_device_ts;

Fifth: Add the following lines to the arch/arm/mach-s3c2410/devs.c file:

    /* Touchscreen */

    static struct s3c2410_ts_mach_info s3c2410ts_info;

    void __init set_s3c2410ts_info(struct s3c2410_ts_mach_info *hard_s3c2410ts_info)
{

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

}

EXPORT_SYMBOL(set_s3c2410ts_info);

struct platform_device s3c_device_ts = {

.name = "s3c2410-ts",

.id = -1,

.dev = {

.platform_data = &s3c2410ts_info,

}

};

EXPORT_SYMBOL(s3c_device_ts);

Compile the touch screen driver and register it in the kernel as /dev/input/mouse0