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