be72c4f2bf
Implement standard values and functions to operate on power control register. This allow to modify both reporting rate and sleep mode in order to save power. Change-Id: I2bdffd4160e10eec488eb5e19de8a2a258ddbb04 Reviewed-on: http://gerrit.rockbox.org/529 Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
146 lines
6.1 KiB
C
146 lines
6.1 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef SYNAPTICS_RMI_H
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#define SYNAPTICS_RMI_H
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#define RMI_PAGE_SELECT 0xff /* $xxff */
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#define RMI_MAKE_REG(fn, reg) (((fn) << 8) | (reg))
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#define RMI_DEVICE_CONTROL 0x0 /* $0000 */
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#define RMI_INTERRUPT_ENABLE 0x1 /* $0001 */
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#define RMI_INTERRUPT_REQUEST 0x3 /* $0003 */
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#define RMI_PRODUCT_ID 0x210 /* $0210 */
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#define RMI_PRODUCT_ID_LEN 16
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#define RMI_2D_TOUCHPAD_FUNCTION 0x10
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#define RMI_FUNCTION_PRESENCE(fn) RMI_MAKE_REG(0x03, fn) /* $03xx */
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#define RMI_FUNCTION_VERSION(fn) RMI_MAKE_REG(fn, 0) /* $xx00 */
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#define RMI_DATA_REGISTER(data_src) RMI_MAKE_REG(0x4, data_src) /* $04xx */
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/* 2D TouchPad/ClearPad */
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#define RMI_2D_REG(reg) RMI_MAKE_REG(RMI_2D_TOUCHPAD_FUNCTION, reg)
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#define RMI_2D_SENSOR_PROP1(sens) RMI_2D_REG(8 * (sens) + 0x2)
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#define RMI_2D_SENSOR_PROP2(sens) RMI_2D_REG(8 * (sens) + 0x3)
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#define RMI_2D_SENSOR_XMAX_MSB(s) RMI_2D_REG(8 * (s) + 0x4)
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#define RMI_2D_SENSOR_XMAX_LSB(s) RMI_2D_REG(8 * (s) + 0x5)
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#define RMI_2D_SENSOR_YMAX_MSB(s) RMI_2D_REG(8 * (s) + 0x6)
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#define RMI_2D_SENSOR_YMAX_LSB(s) RMI_2D_REG(8 * (s) + 0x7)
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#define RMI_2D_SENSOR_RESOLUTION(s) RMI_2D_REG(8 * (s) + 0x8)
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#define RMI_2D_GLOBAL_SETTINGS RMI_2D_REG(0x41)
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#define RMI_2D_GESTURE_SETTINGS RMI_2D_REG(0x42)
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#define RMI_2D_GESTURE_PRESS_TIME_BM 0x7
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#define RMI_2D_GESTURE_PRESS_TIME_300MS 0
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#define RMI_2D_GESTURE_PRESS_TIME_400MS 1
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#define RMI_2D_GESTURE_PRESS_TIME_500MS 2
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#define RMI_2D_GESTURE_PRESS_TIME_600MS 3
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#define RMI_2D_GESTURE_PRESS_TIME_700MS 4
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#define RMI_2D_GESTURE_PRESS_TIME_800MS 5
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#define RMI_2D_GESTURE_PRESS_TIME_900MS 6
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#define RMI_2D_GESTURE_PRESS_TIME_1S 7
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#define RMI_2D_GESTURE_FLICK_DIST_BM (0x7 << 3)
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#define RMI_2D_GESTURE_FLICK_DIST_BP 3
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#define RMI_2D_GESTURE_FLICK_DIST_4MM 0
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#define RMI_2D_GESTURE_FLICK_DIST_5MM 1
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#define RMI_2D_GESTURE_FLICK_DIST_6MM 2
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#define RMI_2D_GESTURE_FLICK_DIST_7MM 3
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#define RMI_2D_GESTURE_FLICK_DIST_8MM 4
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#define RMI_2D_GESTURE_FLICK_DIST_9MM 5
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#define RMI_2D_GESTURE_FLICK_DIST_10MM 6
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#define RMI_2D_GESTURE_FLICK_DIST_11MM 7
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#define RMI_2D_GESTURE_FLICK_TIME_BM (2 << 6)
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#define RMI_2D_GESTURE_FLICK_TIME_BP 6
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#define RMI_2D_GESTURE_FLICK_TIME_250MS 0
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#define RMI_2D_GESTURE_FLICK_TIME_400MS 1
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#define RMI_2D_GESTURE_FLICK_TIME_550MS 2
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#define RMI_2D_GESTURE_FLICK_TIME_700MS 3
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#define RMI_2D_SENSITIVITY_ADJ RMI_2D_REG(0x44)
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#define RMI_2D_MIN_DIST RMI_2D_REG(0x45)
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/* 2D TouchPad/ClearPad data registers */
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struct rmi_2d_absolute_data_t
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{
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unsigned char misc;
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unsigned char z;
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unsigned char x_msb;
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unsigned char x_lsb;
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unsigned char y_msb;
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unsigned char y_lsb;
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} __attribute__((packed));
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#define RMI_2D_ABS_MISC_NR_FINGERS_BM 7
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#define RMI_2D_ABS_MISC_GESTURE (1 << 3)
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#define RMI_2D_ABS_MISC_WIDTH_BM 0xf0
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#define RMI_2D_ABS_MISC_WIDTH_BP 4
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#define RMI_2D_GEST_MISC_TAP_CODE_BM 7
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#define RMI_2D_GEST_MISC_NO_TAP 0
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#define RMI_2D_GEST_MISC_SINGLE_TAP 1
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#define RMI_2D_GEST_MISC_TAP_AND_HOLD 2
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#define RMI_2D_GEST_MISC_DOUBLE_TAP 3
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#define RMI_2D_GEST_MISC_PRESS (1 << 3)
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#define RMI_2D_GEST_MISC_FLICK (1 << 4)
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#define RMI_2D_GEST_MISC_PINCH (1 << 5)
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#define RMI_2D_GEST_MISC_CONFIRMED (1 << 7)
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#define RMI_2D_GEST_FLICK_X_BM 0x0f
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#define RMI_2D_GEST_FLICK_Y_BM 0xf0
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#define RMI_2D_GEST_FLICK_Y_BP 4
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/* RMI Device Control register */
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#define RMI_REPORT_RATE_BM 0xc0
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#define RMI_SLEEP_MODE_BM 0x07
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#define RMI_REPORT_RATE_NORMAL 0x80
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#define RMI_REPORT_RATE_LOW 0x40
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#define RMI_SLEEP_MODE_FORCE_FULLY_AWAKE 0x00
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#define RMI_SLEEP_MODE_NORMAL 0x01
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#define RMI_SLEEP_MODE_LOW_POWER 0x02
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#define RMI_SLEEP_MODE_VERY_LOW_POWER 0x03
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#define RMI_SLEEP_MODE_SENSOR_SLEEP 0x04
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struct rmi_2d_relative_data_t
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{
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signed char x; /* signed */
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signed char y; /* signed */
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} __attribute__((packed));
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struct rmi_2d_gesture_data_t
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{
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unsigned char misc;
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unsigned char flick;
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} __attribute__((packed));
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/* Initialize the RMI driver, the i2c_bus_index is the bus index returned by
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* the generic_i2c driver; the i2c_dev_addr is the i2c address of the device.
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* NOTE: the driver automatically handles the page select mechanism used for
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* RMI over i2c and assumes a standard page select register at 0xff. */
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int rmi_init(int i2c_dev_addr);
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/* Read one or more registers.
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* WARNING: don't cross a page boundary ! */
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int rmi_read(int address, int byte_count, unsigned char *buffer);
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/* Read a single register (return -1 on error)
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* WARNING: beware of register consistency (N x read 1 byte != reads N bytes) */
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int rmi_read_single(int address); /* return byte value or <0 in case of error */
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/* Write one of more register
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* WARNING: don't cross a page boundary ! */
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int rmi_write(int address, int byte_count, const unsigned char *buffer);
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/* Write one register
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* WARNING: don't cross a page boundary ! */
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int rmi_write_single(int address, unsigned char byte);
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/* set the device to the given sleep mode */
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void rmi_set_sleep_mode(unsigned char sleep_mode);
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/* set the device's report rate to the given value */
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void rmi_set_report_rate(unsigned char report_rate);
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#endif
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