Edit File: comparator.h
/* * comparator.h -- Comparator Aux ADC for Wolfson WM8350 PMIC * * Copyright 2007 Wolfson Microelectronics PLC * * 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. */ #ifndef __LINUX_MFD_WM8350_COMPARATOR_H_ #define __LINUX_MFD_WM8350_COMPARATOR_H_ /* * Registers */ #define WM8350_DIGITISER_CONTROL_1 0x90 #define WM8350_DIGITISER_CONTROL_2 0x91 #define WM8350_AUX1_READBACK 0x98 #define WM8350_AUX2_READBACK 0x99 #define WM8350_AUX3_READBACK 0x9A #define WM8350_AUX4_READBACK 0x9B #define WM8350_CHIP_TEMP_READBACK 0x9F #define WM8350_GENERIC_COMPARATOR_CONTROL 0xA3 #define WM8350_GENERIC_COMPARATOR_1 0xA4 #define WM8350_GENERIC_COMPARATOR_2 0xA5 #define WM8350_GENERIC_COMPARATOR_3 0xA6 #define WM8350_GENERIC_COMPARATOR_4 0xA7 /* * R144 (0x90) - Digitiser Control (1) */ #define WM8350_AUXADC_CTC 0x4000 #define WM8350_AUXADC_POLL 0x2000 #define WM8350_AUXADC_HIB_MODE 0x1000 #define WM8350_AUXADC_SEL8 0x0080 #define WM8350_AUXADC_SEL7 0x0040 #define WM8350_AUXADC_SEL6 0x0020 #define WM8350_AUXADC_SEL5 0x0010 #define WM8350_AUXADC_SEL4 0x0008 #define WM8350_AUXADC_SEL3 0x0004 #define WM8350_AUXADC_SEL2 0x0002 #define WM8350_AUXADC_SEL1 0x0001 /* * R145 (0x91) - Digitiser Control (2) */ #define WM8350_AUXADC_MASKMODE_MASK 0x3000 #define WM8350_AUXADC_CRATE_MASK 0x0700 #define WM8350_AUXADC_CAL 0x0004 #define WM8350_AUX_RBMODE 0x0002 #define WM8350_AUXADC_WAIT 0x0001 /* * R152 (0x98) - AUX1 Readback */ #define WM8350_AUXADC_SCALE1_MASK 0x6000 #define WM8350_AUXADC_REF1 0x1000 #define WM8350_AUXADC_DATA1_MASK 0x0FFF /* * R153 (0x99) - AUX2 Readback */ #define WM8350_AUXADC_SCALE2_MASK 0x6000 #define WM8350_AUXADC_REF2 0x1000 #define WM8350_AUXADC_DATA2_MASK 0x0FFF /* * R154 (0x9A) - AUX3 Readback */ #define WM8350_AUXADC_SCALE3_MASK 0x6000 #define WM8350_AUXADC_REF3 0x1000 #define WM8350_AUXADC_DATA3_MASK 0x0FFF /* * R155 (0x9B) - AUX4 Readback */ #define WM8350_AUXADC_SCALE4_MASK 0x6000 #define WM8350_AUXADC_REF4 0x1000 #define WM8350_AUXADC_DATA4_MASK 0x0FFF /* * R156 (0x9C) - USB Voltage Readback */ #define WM8350_AUXADC_DATA_USB_MASK 0x0FFF /* * R157 (0x9D) - LINE Voltage Readback */ #define WM8350_AUXADC_DATA_LINE_MASK 0x0FFF /* * R158 (0x9E) - BATT Voltage Readback */ #define WM8350_AUXADC_DATA_BATT_MASK 0x0FFF /* * R159 (0x9F) - Chip Temp Readback */ #define WM8350_AUXADC_DATA_CHIPTEMP_MASK 0x0FFF /* * R163 (0xA3) - Generic Comparator Control */ #define WM8350_DCMP4_ENA 0x0008 #define WM8350_DCMP3_ENA 0x0004 #define WM8350_DCMP2_ENA 0x0002 #define WM8350_DCMP1_ENA 0x0001 /* * R164 (0xA4) - Generic comparator 1 */ #define WM8350_DCMP1_SRCSEL_MASK 0xE000 #define WM8350_DCMP1_GT 0x1000 #define WM8350_DCMP1_THR_MASK 0x0FFF /* * R165 (0xA5) - Generic comparator 2 */ #define WM8350_DCMP2_SRCSEL_MASK 0xE000 #define WM8350_DCMP2_GT 0x1000 #define WM8350_DCMP2_THR_MASK 0x0FFF /* * R166 (0xA6) - Generic comparator 3 */ #define WM8350_DCMP3_SRCSEL_MASK 0xE000 #define WM8350_DCMP3_GT 0x1000 #define WM8350_DCMP3_THR_MASK 0x0FFF /* * R167 (0xA7) - Generic comparator 4 */ #define WM8350_DCMP4_SRCSEL_MASK 0xE000 #define WM8350_DCMP4_GT 0x1000 #define WM8350_DCMP4_THR_MASK 0x0FFF /* * Interrupts. */ #define WM8350_IRQ_AUXADC_DATARDY 16 #define WM8350_IRQ_AUXADC_DCOMP4 17 #define WM8350_IRQ_AUXADC_DCOMP3 18 #define WM8350_IRQ_AUXADC_DCOMP2 19 #define WM8350_IRQ_AUXADC_DCOMP1 20 #define WM8350_IRQ_SYS_HYST_COMP_FAIL 21 #define WM8350_IRQ_SYS_CHIP_GT115 22 #define WM8350_IRQ_SYS_CHIP_GT140 23 /* * USB/2, LINE & BATT = ((VRTC * 2) / 4095)) * 10e6 uV * Where VRTC = 2.7 V */ #define WM8350_AUX_COEFF 1319 #define WM8350_AUXADC_AUX1 0 #define WM8350_AUXADC_AUX2 1 #define WM8350_AUXADC_AUX3 2 #define WM8350_AUXADC_AUX4 3 #define WM8350_AUXADC_USB 4 #define WM8350_AUXADC_LINE 5 #define WM8350_AUXADC_BATT 6 #define WM8350_AUXADC_TEMP 7 struct wm8350; /* * AUX ADC Readback */ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref); #endif