191 lines
7.0 KiB
C
191 lines
7.0 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) 2012 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 __MPR121_H__
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#define __MPR121_H__
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/** Registers for the Freescale MPR121 Capacitive Proximity Sensor */
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#include "system.h"
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/* Touch status: EL{0,7} */
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#define REG_TOUCH_STATUS 0x00
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#define REG_TOUCH_STATUS__ELE(x) (1 << (x))
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/* Touch status: EL{8-11,prox}, overcurrent */
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#define REG_TOUCH_STATUS2 0x01
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#define REG_TOUCH_STATUS2__ELE(x) (1 << ((x) - 8))
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#define REG_TOUCH_STATUS2__ELEPROX (1 << 4)
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#define REG_TOUCH_STATUS2__OVCF (1 << 7)
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/* Out of range: EL{0,7} */
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#define REG_OOR_STATUS 0x02
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#define REG_OOR_STATUS__ELE(x) (1 << (x))
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/* Out of range: EL{8-11,prox}, autoconf err */
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#define REG_OOR_STATUS2 0x03
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#define REG_OOR_STATUS2__ELE(x) (1 << (x))
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#define REG_OOR_STATUS2__ELEPROX (1 << 4)
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#define REG_OOR_STATUS2__ACFF (1 << 6)
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#define REG_OOR_STATUS2__ARFF (1 << 7)
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/* Electrode X filtered data LSB */
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#define REG_EFDxLB(x) (0x04 + 0x02 * (x))
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/* Electrode X filtered data MSB */
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#define REG_EFDxHB(x) (0x05 + 0x02 * (x))
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/* Proximity electrode X filtered data LSB */
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#define REG_EFDPROXLB 0x1c
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/* Proximity electrode X filtered data MSB */
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#define REG_EFDPROXHB 0x1d
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/* Electrode baseline value */
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#define REG_ExBV(x) (0x1e + (x))
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/* Proximity electrode baseline value */
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#define REG_EPROXBV 0x2a
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/* Max Half Delta Rising */
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#define REG_MHDR 0x2b
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/* Noise Half Delta Rising */
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#define REG_NHDR 0x2c
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/* Noise Count Limit Rising */
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#define REG_NCLR 0x2d
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/* Filter Delay Limit Rising */
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#define REG_FDLR 0x2e
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/* Max Half Delta Falling */
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#define REG_MHDF 0x2f
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/* Noise Half Delta Falling */
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#define REG_NHDF 0x30
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/* Noise Count Limit Falling */
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#define REG_NCLF 0x31
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/* Filter Delay Limit Falling */
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#define REG_FDLF 0x32
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/* Noise Half Delta Touched */
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#define REG_NHDT 0x33
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/* Noise Count Limit Touched */
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#define REG_NCLT 0x34
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/* Filter Delay Limit Touched */
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#define REG_FDLT 0x35
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/* Proximity Max Half Delta Rising */
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#define REG_MHDPROXR 0x36
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/* Proximity Noise Half Delta Rising */
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#define REG_NHDPROXR 0x37
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/* Proximity Noise Count Limit Rising */
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#define REG_NCLPROXR 0x38
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/* Proximity Filter Delay Limit Rising */
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#define REG_FDLPROXR 0x39
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/* Proximity Max Half Delta Falling */
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#define REG_MHDPROXF 0x3a
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/* Proximity Noise Half Delta Falling */
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#define REG_NHDPROXF 0x3b
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/* Proximity Noise Count Limit Falling */
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#define REG_NCLPROXF 0x3c
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/* Proximity Filter Delay Limit Falling */
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#define REG_FDLPROXF 0x3d
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/* Proximity Noise Half Delta Touched */
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#define REG_NHDPROXT 0x3e
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/* Proximity Noise Count Limit Touched */
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#define REG_NCLPROXT 0x3f
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/* Proximity Filter Delay Limit Touched */
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#define REG_FDLPROXT 0x40
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/* Eletrode Touch Threshold */
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#define REG_ExTTH(x) (0x41 + 2 * (x))
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/* Eletrode Release Threshold */
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#define REG_ExRTH(x) (0x42 + 2 * (x))
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/* Proximity Eletrode Touch Threshold */
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#define REG_EPROXTTH 0x59
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/* Proximity Eletrode Release Threshold */
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#define REG_EPROXRTH 0x5a
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/* Debounce Control */
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#define REG_DEBOUNCE 0x5b
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#define REG_DEBOUNCE__DR(dr) ((dr) << 4)
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#define REG_DEBOUNCE__DT(dt) (dt)
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/* Analog Front End Configuration */
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#define REG_AFE 0x5c
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#define REG_AFE__CDC(cdc) (cdc)
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#define REG_AFE__FFI(ffi) ((ffi) << 6)
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/* Filter Configuration */
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#define REG_FILTER 0x5d
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#define REG_FILTER__ESI(esi) (esi)
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#define REG_FILTER__SFI(sfi) ((sfi) << 3)
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#define REG_FILTER__CDT(cdt) ((cdt) << 5)
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/* Electrode Configuration */
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#define REG_ELECTRODE 0x5e
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#define REG_ELECTRODE__ELE_EN(en) (en)
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#define REG_ELECTRODE__ELEPROX_EN(en) ((en) << 4)
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#define REG_ELECTRODE__CL(cl) ((cl) << 6)
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/* Electrode X Current */
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#define REG_CDCx(x) (0x5f + (x))
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/* Proximity Eletrode X Current */
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#define REG_CDCPROX 0x6b
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/* Electrode X Charge Time */
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#define REG_CDTx(x) (0x6c + (x) / 2)
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#define REG_CDTx__CDT0(x) (x)
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#define REG_CDTx__CDT1(x) ((x) << 4)
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/* Proximity Eletrode X Charge Time */
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#define REG_CDTPROX 0x72
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/* GPIO Control Register: CTL0{4-11} */
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#define REG_GPIO_CTL0 0x73
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#define REG_GPIO_CTL0__CTL0x(x) (1 << ((x) - 4))
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/* GPIO Control Register: CTL1{4-11} */
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#define REG_GPIO_CTL1 0x74
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#define REG_GPIO_CTL1__CTL1x(x) (1 << ((x) - 4))
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/* GPIO Data Register */
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#define REG_GPIO_DATA 0x75
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#define REG_GPIO_DATA__DATx(x) (1 << ((x) - 4))
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/* GPIO Direction Register */
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#define REG_GPIO_DIR 0x76
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#define REG_GPIO_DIR__DIRx(x) (1 << ((x) - 4))
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/* GPIO Enable Register */
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#define REG_GPIO_EN 0x77
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#define REG_GPIO_EN__ENx(x) (1 << ((x) - 4))
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/* GPIO Data Set Register */
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#define REG_GPIO_SET 0x78
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#define REG_GPIO_SET__SETx(x) (1 << ((x) - 4))
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/* GPIO Data Clear Register */
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#define REG_GPIO_CLR 0x79
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#define REG_GPIO_CLR__CLRx(x) (1 << ((x) - 4))
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/* GPIO Data Toggle Register */
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#define REG_GPIO_TOG 0x7a
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#define REG_GPIO_TOG__TOGx(x) (1 << ((x) - 4))
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/* Auto-Configuration Control 0 */
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#define REG_AUTO_CONF 0x7b
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#define REG_AUTO_CONF__ACE(ace) (ace)
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#define REG_AUTO_CONF__ARE(are) ((are) << 1)
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#define REG_AUTO_CONF__BVA(bva) ((bva) << 2)
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#define REG_AUTO_CONF__RETRY(retry) ((retry) << 4)
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#define REG_AUTO_CONF__FFI(ffi) ((ffi) << 6)
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/* Auto-Configuration Control 1 */
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#define REG_AUTO_CONF2 0x7c
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#define REG_AUTO_CONF2__ACFIE(acfie) (acfie)
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#define REG_AUTO_CONF2__ARFIE(arfie) ((arfie) << 1)
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#define REG_AUTO_CONF2__OORIE(oorie) ((oorie) << 2)
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#define REG_AUTO_CONF2__SCTS(scts) ((scts) << 7)
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/* Auto-Configuration Upper-Limit */
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#define REG_USL 0x7d
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/* Auto-Configuration Lower-Limit */
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#define REG_LSL 0x7e
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/* Auto-Configuration Target Level */
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#define REG_TL 0x7f
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/* Soft-Reset */
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#define REG_SOFTRESET 0x80
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#define REG_SOFTRESET__MAGIC 0x63
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/* PWM Control */
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#define REG_PWMx(x) (0x81 + ((x) - 4) / 2)
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#define REG_PWMx_IS_PWM0(x) (((x) % 2) == 0)
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#define REG_PWMx__PWM0(x) (x)
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#define REG_PWMx__PWM0_BM 0xf
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#define REG_PWMx__PWM1(x) ((x) << 4)
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#define REG_PWMx__PWM1_BM 0xf0
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#endif /* __MPR121_H__ */
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