STMPE811 cleanup & readme

drivers/ginput/touch/STMPE811/ginput_lld_mouse_config.h

@@ -39,8 +39,10 @@
 #define GINPUT_MOUSE_MAX_CLICK_JITTER			10
 #define GINPUT_MOUSE_MAX_MOVE_JITTER			2
 #define GINPUT_MOUSE_CLICK_TIME					500
-#define STMP811_SLOWER_RESPONSE FALSE
+
-#define STMP811_NO_GPIO_IRQPIN FALSE
+/* default values - over write these in your boad files */
+#define STMP811_SLOWER_RESPONSE 				FALSE
+#define STMP811_NO_GPIO_IRQPIN 					FALSE
 
 #endif /* _LLD_GINPUT_MOUSE_CONFIG_H */
 /** @} */

drivers/ginput/touch/STMPE811/readme.txt

@@ -1,9 +1,20 @@
-To use this driver:
+The STMPE811 driver comes with two different #defines to perfectly fit
-
+your application:
-1. Add in your halconf.h:
+
-	a) #define GFX_USE_GINPUT			TRUE
+
-	b) #define GINPUT_NEED_MOUSE		TRUE
+STMPE811_NO_GPIO_IRQPIN
-
+This Macro is meant to be set in your board file. When you set this macro to
-2. To your makefile add the following lines:
+TRUE, the GINPUT module will not use the IRQ lane which might be connected
-	include $(GFXLIB)/drivers/ginput/touch/STMPE811/ginput_lld.mk
+to a GPIO pin to recognize interrupts by the STMPE811 controller. This
-
+costs a few more I2C calls.
+When the interrupt IRQ pin is connected to a GPIO of your MCU, set this
+macro to FALSE.
+
+
+STMP811_SLOW_CPU
+If you have a slow CPU and you need to take care of your resources, you can
+set this macro TRUE. This will save some IRQs and therefore a few I2C calls.
+The disadvantage is a little higher response time.
+If you don't want to draw continious lines on your display, it's recommended
+to set this to TRUE anyways.
+