/*

 * 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

#endif