Input: pixcir_i2c_ts - initialize interrupt mode and power mode

[cascardo/linux.git] / include / linux / input / pixcir_ts.h

diff --git a/include/linux/input/pixcir_ts.h b/include/linux/input/pixcir_ts.h
index 7163d91..7942804 100644 (file)
--- a/include/linux/input/pixcir_ts.h
+++ b/include/linux/input/pixcir_ts.h
@@ -1,6 +1,48 @@
 #ifndef        _PIXCIR_I2C_TS_H
 #define        _PIXCIR_I2C_TS_H
 
+/*
+ * Register map
+ */
+#define PIXCIR_REG_POWER_MODE  51
+#define PIXCIR_REG_INT_MODE    52
+
+/*
+ * Power modes:
+ * active: max scan speed
+ * idle: lower scan speed with automatic transition to active on touch
+ * halt: datasheet says sleep but this is more like halt as the chip
+ *       clocks are cut and it can only be brought out of this mode
+ *      using the RESET pin.
+ */
+enum pixcir_power_mode {
+       PIXCIR_POWER_ACTIVE,
+       PIXCIR_POWER_IDLE,
+       PIXCIR_POWER_HALT,
+};
+
+#define PIXCIR_POWER_MODE_MASK 0x03
+#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
+
+/*
+ * Interrupt modes:
+ * periodical: interrupt is asserted periodicaly
+ * diff coordinates: interrupt is asserted when coordinates change
+ * level on touch: interrupt level asserted during touch
+ * pulse on touch: interrupt pulse asserted druing touch
+ *
+ */
+enum pixcir_int_mode {
+       PIXCIR_INT_PERIODICAL,
+       PIXCIR_INT_DIFF_COORD,
+       PIXCIR_INT_LEVEL_TOUCH,
+       PIXCIR_INT_PULSE_TOUCH,
+};
+
+#define PIXCIR_INT_MODE_MASK   0x03
+#define PIXCIR_INT_ENABLE      (1UL << 3)
+#define PIXCIR_INT_POL_HIGH    (1UL << 2)
+
 struct pixcir_ts_platform_data {
        int (*attb_read_val)(void);
        int x_max;