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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 by Amaury Pouly
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef SYNAPTICS_RMI_H
#define SYNAPTICS_RMI_H
#define RMI_PAGE_SELECT 0xff /* $xxff */
#define RMI_MAKE_REG(fn, reg) (((fn) << 8) | (reg))
#define RMI_DEVICE_CONTROL 0x0 /* $0000 */
#define RMI_INTERRUPT_ENABLE 0x1 /* $0001 */
#define RMI_INTERRUPT_REQUEST 0x3 /* $0003 */
#define RMI_PRODUCT_ID 0x210 /* $0210 */
#define RMI_PRODUCT_ID_LEN 16
#define RMI_2D_TOUCHPAD_FUNCTION 0x10
#define RMI_FUNCTION_PRESENCE(fn) RMI_MAKE_REG(0x03, fn) /* $03xx */
#define RMI_FUNCTION_VERSION(fn) RMI_MAKE_REG(fn, 0) /* $xx00 */
#define RMI_DATA_REGISTER(data_src) RMI_MAKE_REG(0x4, data_src) /* $04xx */
/* 2D TouchPad/ClearPad */
#define RMI_2D_REG(reg) RMI_MAKE_REG(RMI_2D_TOUCHPAD_FUNCTION, reg)
#define RMI_2D_SENSOR_PROP1(sens) RMI_2D_REG(8 * (sens) + 0x2)
#define RMI_2D_SENSOR_PROP2(sens) RMI_2D_REG(8 * (sens) + 0x3)
#define RMI_2D_SENSOR_XMAX_MSB(s) RMI_2D_REG(8 * (s) + 0x4)
#define RMI_2D_SENSOR_XMAX_LSB(s) RMI_2D_REG(8 * (s) + 0x5)
#define RMI_2D_SENSOR_YMAX_MSB(s) RMI_2D_REG(8 * (s) + 0x6)
#define RMI_2D_SENSOR_YMAX_LSB(s) RMI_2D_REG(8 * (s) + 0x7)
#define RMI_2D_SENSOR_RESOLUTION(s) RMI_2D_REG(8 * (s) + 0x8)
#define RMI_2D_GLOBAL_SETTINGS RMI_2D_REG(0x41)
#define RMI_2D_GESTURE_SETTINGS RMI_2D_REG(0x42)
#define RMI_2D_GESTURE_PRESS_TIME_BM 0x7
#define RMI_2D_GESTURE_PRESS_TIME_300MS 0
#define RMI_2D_GESTURE_PRESS_TIME_400MS 1
#define RMI_2D_GESTURE_PRESS_TIME_500MS 2
#define RMI_2D_GESTURE_PRESS_TIME_600MS 3
#define RMI_2D_GESTURE_PRESS_TIME_700MS 4
#define RMI_2D_GESTURE_PRESS_TIME_800MS 5
#define RMI_2D_GESTURE_PRESS_TIME_900MS 6
#define RMI_2D_GESTURE_PRESS_TIME_1S 7
#define RMI_2D_GESTURE_FLICK_DIST_BM (0x7 << 3)
#define RMI_2D_GESTURE_FLICK_DIST_BP 3
#define RMI_2D_GESTURE_FLICK_DIST_4MM 0
#define RMI_2D_GESTURE_FLICK_DIST_5MM 1
#define RMI_2D_GESTURE_FLICK_DIST_6MM 2
#define RMI_2D_GESTURE_FLICK_DIST_7MM 3
#define RMI_2D_GESTURE_FLICK_DIST_8MM 4
#define RMI_2D_GESTURE_FLICK_DIST_9MM 5
#define RMI_2D_GESTURE_FLICK_DIST_10MM 6
#define RMI_2D_GESTURE_FLICK_DIST_11MM 7
#define RMI_2D_GESTURE_FLICK_TIME_BM (2 << 6)
#define RMI_2D_GESTURE_FLICK_TIME_BP 6
#define RMI_2D_GESTURE_FLICK_TIME_250MS 0
#define RMI_2D_GESTURE_FLICK_TIME_400MS 1
#define RMI_2D_GESTURE_FLICK_TIME_550MS 2
#define RMI_2D_GESTURE_FLICK_TIME_700MS 3
#define RMI_2D_SENSITIVITY_ADJ RMI_2D_REG(0x44)
#define RMI_2D_MIN_DIST RMI_2D_REG(0x45)
/* 2D TouchPad/ClearPad data registers */
struct rmi_2d_absolute_data_t
{
unsigned char misc;
unsigned char z;
unsigned char x_msb;
unsigned char x_lsb;
unsigned char y_msb;
unsigned char y_lsb;
} __attribute__((packed));
#define RMI_2D_ABS_MISC_NR_FINGERS_BM 7
#define RMI_2D_ABS_MISC_GESTURE (1 << 3)
#define RMI_2D_ABS_MISC_WIDTH_BM 0xf0
#define RMI_2D_ABS_MISC_WIDTH_BP 4
#define RMI_2D_GEST_MISC_TAP_CODE_BM 7
#define RMI_2D_GEST_MISC_NO_TAP 0
#define RMI_2D_GEST_MISC_SINGLE_TAP 1
#define RMI_2D_GEST_MISC_TAP_AND_HOLD 2
#define RMI_2D_GEST_MISC_DOUBLE_TAP 3
#define RMI_2D_GEST_MISC_PRESS (1 << 3)
#define RMI_2D_GEST_MISC_FLICK (1 << 4)
#define RMI_2D_GEST_MISC_PINCH (1 << 5)
#define RMI_2D_GEST_MISC_CONFIRMED (1 << 7)
#define RMI_2D_GEST_FLICK_X_BM 0x0f
#define RMI_2D_GEST_FLICK_Y_BM 0xf0
#define RMI_2D_GEST_FLICK_Y_BP 4
struct rmi_2d_relative_data_t
{
signed char x; /* signed */
signed char y; /* signed */
} __attribute__((packed));
struct rmi_2d_gesture_data_t
{
unsigned char misc;
unsigned char flick;
} __attribute__((packed));
/* Initialize the RMI driver, the i2c_bus_index is the bus index returned by
* the generic_i2c driver; the i2c_dev_addr is the i2c address of the device.
* NOTE: the driver automatically handles the page select mechanism used for
* RMI over i2c and assumes a standard page select register at 0xff. */
int rmi_init(int i2c_dev_addr);
/* Read one or more registers.
* WARNING: don't cross a page boundary ! */
int rmi_read(int address, int byte_count, unsigned char *buffer);
/* Read a single register (return -1 on error)
* WARNING: beware of register consistency (N x read 1 byte != reads N bytes) */
int rmi_read_single(int address); /* return byte value or <0 in case of error */
/* Write one of more register
* WARNING: don't cross a page boundary ! */
int rmi_write(int address, int byte_count, const unsigned char *buffer);
/* Write one register
* WARNING: don't cross a page boundary ! */
int rmi_write_single(int address, unsigned char byte);
#endif
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