FL2440移植LINUX-3.4.2 -- 内核自带的触摸屏驱动移植

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

3 +#include <plat/ts.h>         /*Add by guowenxue to support Touch screen, 2011.09.06*/
4
5 +/*Touch Screen driver info add by guowenxue 2011.09.04 */
6 +static struct s3c2410_ts_mach_info smdk2440_ts_cfg __initdata = {
7 +    .delay = 10000,
8 +    .presc = 49,
9 +    .oversampling_shift = 2,
10 +};
+

static struct platform_device *smdk2440_devices[] __initdata = {
@@ -155,19 +295,48 @@
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_iis,

26 +    &s3c_device_adc,    /* Add Touch Screen driver by guowenxue, 2011.09.06*/
27 +    &s3c_device_ts,     /* Add Touch Screen driver by guowenxue, 2011.09.06*/
+#endif
};

static void __init smdk2440_machine_init(void)
{
s3c24xx_fb_set_platdata(&smdk2440_fb_info);
+    s3c24xx_ts_set_platdata(&smdk2440_ts_cfg); /*Add Touch Screen info by guowenxue, 2011.09.06*/
s3c_i2c0_set_platdata(NULL);
+    i2c_register_board_info(0, smdk2440_i2c_devs, ARRAY_SIZE(smdk2440_i2c_devs));

platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices));
smdk_machine_init();

/drivers/input/touchscreen/s3c2410_ts.c
+++ linux-3.0-s3c2440/drivers/input/touchscreen/s3c2410_ts.c    2013-07-28 11:44:58.555435668 +0800
@@ -126,6 +126,7 @@
input_report_abs(ts.input, ABS_Y, ts.yp);

input_report_key(ts.input, BTN_TOUCH, 1);
+            input_report_abs(ts.input, ABS_PRESSURE, 1); /* Add by guowenxue, 2012.03.30 */
input_sync(ts.input);

ts.xp = 0;
@@ -140,6 +141,7 @@
ts.count = 0;

input_report_key(ts.input, BTN_TOUCH, 0);
61 +        input_report_abs(ts.input, ABS_PRESSURE, 0); /* Add by guowenxue, 2012.03.30 */
input_sync(ts.input);

writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
@@ -314,10 +316,11 @@
}

ts.input = input_dev;
-    ts.input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+    ts.input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT(EV_SYN); /* Modify by guowenxue, 2012.03.30 */
ts.input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_set_abs_params(ts.input, ABS_X, 0, 0x3FF, 0, 0);
input_set_abs_params(ts.input, ABS_Y, 0, 0x3FF, 0, 0);
+    input_set_abs_params(ts.input, ABS_PRESSURE, 0, 1, 0, 0);  /* Add by guowenxue, 2012.03.30 */

ts.input->name = "S3C24XX TouchScreen";
ts.input->id.bustype = BUS_HOST;