176 lines
5.1 KiB
C
176 lines
5.1 KiB
C
/*
|
|
* 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
|