[PATCH 2/9] Input: pixcir_i2c_ts: Add register definitions

From: Roger Quadros
Date: Wed Dec 18 2013 - 04:22:22 EST


Add power and interrupt register definitions.

Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Acked-by: Mugunthan V N <mugunthanvnm@xxxxxx>
---
include/linux/input/pixcir_ts.h | 42 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)

diff --git a/include/linux/input/pixcir_ts.h b/include/linux/input/pixcir_ts.h
index b34ff7e..f17c192 100644
--- 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);
unsigned int x_size; /* X axis resolution */
--
1.8.3.2

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