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add Auto set TS calibration Function
This commit is contained in:
srt
207
drivers/input/touchscreen/calib_iface_ts.c
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207
drivers/input/touchscreen/calib_iface_ts.c
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@@ -0,0 +1,207 @@
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/*
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* Export interface in /sys/class/touchpanel for calibration.
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*
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* Yongle Lai @ Rockchip - 2010-07-26
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include "calibration_ts.h"
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/*
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* The sys nodes for touch panel calibration depends on controller's name,
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* such as: /sys/bus/spi/drivers/xpt2046_ts/touchadc
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* If we use another TP controller (not xpt2046_ts), the above path will
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* be unavailable which will cause calibration to be fail.
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*
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* Another choice is:
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* sys/devices/platform/rockchip_spi_master/spi0.0/driver/touchadc
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* this path request the TP controller will be the first device of SPI.
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*
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* To make TP calibration module in Android be universal, we create
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* a class named touchpanel as the path for calibration interfaces.
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*/
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/*
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* TPC driver depended.
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*/
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extern volatile struct adc_point gADPoint;
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#ifdef TS_PRESSURE
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extern volatile int gZvalue[3];
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#endif
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#ifdef CONFIG_TP_1024x600
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int screen_x[5] = {50, 974, 50, 974, 512};
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int screen_y[5] = {50, 50, 550, 550, 300};
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#endif
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#ifdef CONFIG_TP_800x480
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int screen_x[5] = { 50, 750, 50, 750, 400};
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int screen_y[5] = { 40, 40, 440, 440, 240};
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#endif
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int uncali_x[5] = { 0 };
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int uncali_y[5] = { 0 };
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int uncali_x_default[5] = { 3735, 301, 3754, 290, 1993 };
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int uncali_y_default[5] = { 3442, 3497, 413, 459, 1880 };
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static ssize_t touch_mode_show(struct class *cls, char *_buf)
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{
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int count;
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count = sprintf(_buf,"TouchCheck:%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
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uncali_x[0], uncali_y[0],
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uncali_x[1], uncali_y[1],
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uncali_x[2], uncali_y[2],
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uncali_x[3], uncali_y[3],
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uncali_x[4], uncali_y[4]);
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printk("buf: %s", _buf);
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return count;
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}
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static ssize_t touch_mode_store(struct class *cls, const char *_buf, size_t _count)
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{
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int i, j = 0;
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char temp[5];
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//printk("Read data from Android: %s\n", _buf);
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for (i = 0; i < 5; i++)
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{
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strncpy(temp, _buf + 5 * (j++), 4);
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uncali_x[i] = simple_strtol(temp, NULL, 10);
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strncpy(temp, _buf + 5 * (j++), 4);
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uncali_y[i] = simple_strtol(temp, NULL, 10);
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printk("SN=%d uncali_x=%d uncali_y=%d\n",
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i, uncali_x[i], uncali_y[i]);
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}
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return _count;
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}
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//This code is Touch adc simple value
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static ssize_t touch_adc_show(struct class *cls,char *_buf)
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{
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printk("ADC show: x=%d y=%d\n", gADPoint.x, gADPoint.y);
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return sprintf(_buf, "%d,%d\n", gADPoint.x, gADPoint.y);
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}
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static ssize_t touch_cali_status(struct class *cls, char *_buf)
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{
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int ret;
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ret = TouchPanelSetCalibration(4, screen_x, screen_y, uncali_x, uncali_y);
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if (ret == 1){
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memcpy(uncali_x_default, uncali_x, sizeof(uncali_x));
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memcpy(uncali_y_default, uncali_y, sizeof(uncali_y));
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printk("touch_cali_status-0--%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
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uncali_x_default[0], uncali_y_default[0],
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uncali_x_default[1], uncali_y_default[1],
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uncali_x_default[2], uncali_y_default[2],
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uncali_x_default[3], uncali_y_default[3],
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uncali_x_default[4], uncali_y_default[4]);
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ret = sprintf(_buf, "successful\n");
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}
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else{
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printk("touchpal calibration failed, use default value.\n");
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ret = TouchPanelSetCalibration(4, screen_x, screen_y, uncali_x_default, uncali_y_default);
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printk("touch_cali_status-1---%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
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uncali_x_default[0], uncali_y_default[0],
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uncali_x_default[1], uncali_y_default[1],
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uncali_x_default[2], uncali_y_default[2],
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uncali_x_default[3], uncali_y_default[3],
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uncali_x_default[4], uncali_y_default[4]);
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if (ret == 1){
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ret = sprintf(_buf, "recovery\n");
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}
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else{
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ret = sprintf(_buf, "fail\n");
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}
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}
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//printk("Calibration status: _buf=<%s", _buf);
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return ret;
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}
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#ifdef TS_PRESSURE
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static ssize_t touch_pressure(struct class *cls,char *_buf)
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{
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printk("enter %s gADPoint.x==%d,gADPoint.y==%d\n",__FUNCTION__,gADPoint.x,gADPoint.y);
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return sprintf(_buf,"%d,%d,%d\n",gZvalue[0],gZvalue[1],gZvalue[2]);
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}
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#endif
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static struct class *tp_class = NULL;
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static CLASS_ATTR(touchcheck, 0666, touch_mode_show, touch_mode_store);
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static CLASS_ATTR(touchadc, 0666, touch_adc_show, NULL);
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static CLASS_ATTR(calistatus, 0666, touch_cali_status, NULL);
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#ifdef TS_PRESSURE
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static CLASS_ATTR(pressure, 0666, touch_pressure, NULL);
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#endif
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static int __init tp_calib_iface_init(void)
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{
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int ret = 0;
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int err = 0;
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tp_class = class_create(THIS_MODULE, "touchpanel");
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if (IS_ERR(tp_class))
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{
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printk("Create class touchpanel failed.\n");
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return -ENOMEM;
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}
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err = TouchPanelSetCalibration(4, screen_x, screen_y, uncali_x_default, uncali_y_default);
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printk("tp_calib_iface_init---%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
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uncali_x_default[0], uncali_y_default[0],
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uncali_x_default[1], uncali_y_default[1],
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uncali_x_default[2], uncali_y_default[2],
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uncali_x_default[3], uncali_y_default[3],
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uncali_x_default[4], uncali_y_default[4]);
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if (err == 1){
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printk("Auto set calibration successfully.\n");
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} else {
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printk("Auto set calibraion failed, reset data again please !");
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}
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/*
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* Create ifaces for TP calibration.
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*/
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ret = class_create_file(tp_class, &class_attr_touchcheck);
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ret += class_create_file(tp_class, &class_attr_touchadc);
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ret += class_create_file(tp_class, &class_attr_calistatus);
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#ifdef TS_PRESSURE
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ret += class_create_file(tp_class, &class_attr_pressure);
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#endif
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if (ret)
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{
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printk("Fail to class ifaces for TP calibration.\n");
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}
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return ret;
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}
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static void __exit tp_calib_iface_exit(void)
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{
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class_remove_file(tp_class, &class_attr_touchcheck);
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class_remove_file(tp_class, &class_attr_touchadc);
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class_remove_file(tp_class, &class_attr_calistatus);
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#ifdef TS_PRESSURE
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class_remove_file(tp_class, &class_attr_pressure);
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#endif
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class_destroy(tp_class);
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}
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module_init(tp_calib_iface_init);
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module_exit(tp_calib_iface_exit);
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MODULE_AUTHOR("Yongle Lai");
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MODULE_DESCRIPTION("XPT2046 TPC driver @ Rockchip");
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MODULE_LICENSE("GPL");
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