2440+2.6.33 触摸屏驱动 移植（十一）

本来 这一篇章应该在 QT移植之前，但是没有写，现在补上，触摸屏驱动移植

没有仔细研究 触摸屏AD 哪些东西，只是按照手册，使用了tq写好的ADC 驱动

参考：qt 09 移植手册

1.复制 tq-2.6.30.4/drivers/input/touchsreen/tq2440_ts.c  到自己内核
       2.6.33/drivers/input/touchsreen/ywx2440_ts.c

2.修改 ywx2440_ts.c 在 第41行
//extern struct semaphore ADC_LOCK;  修改为下面的
DECLARE_MUTEX(ADC);

3.修改 /touchscreen/Kconfig  最后一行
添加

config TOUCHSCREEN_YWX2440
    tristate "ywx 2440 TouchScreen input driver"
    depends on ARCH_S3C2410 && INPUT && INPUT_TOUCHSCREEN
    help
      Say Y here if you have the ywx2440 TouchScreen.

      If unsure, say N.

      To compile this driver as a module, choose M here: the
      module will be called ywx2440_ts.

endif

4.修改 /touchscreen/Makefile

obj-$(CONFIG_TOUCHSCREEN_YWX2440)    +=ywx2440_ts.o

5.配置内核

Device driver ->
     input device support->
       (320) Horizontal screen resolution
       (240) Vertical screen resolution
  
       (*) Event interface  
       [*] Touchscreens  ->
              <*> ywx 2440 TouchScreen input driver


6.启动时，打印 触摸屏驱动 移植好

USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
pl2303: Prolific PL2303 USB to serial adaptor driver
mice: PS/2 mouse device common for all mice

TQ2440 TouchScreen successfully loaded            ###这里打印输出
input: TQ2440 TouchScreen as /class/input/input0

S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled