| /* |
| * 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 |
