Mark Brown | e7aabc3 | 2008-10-10 15:58:07 +0100 | [diff] [blame] | 1 | /* |
| 2 | * comparator.h -- Comparator Aux ADC for Wolfson WM8350 PMIC |
| 3 | * |
| 4 | * Copyright 2007 Wolfson Microelectronics PLC |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #ifndef __LINUX_MFD_WM8350_COMPARATOR_H_ |
| 13 | #define __LINUX_MFD_WM8350_COMPARATOR_H_ |
| 14 | |
| 15 | /* |
| 16 | * Registers |
| 17 | */ |
| 18 | |
| 19 | #define WM8350_DIGITISER_CONTROL_1 0x90 |
| 20 | #define WM8350_DIGITISER_CONTROL_2 0x91 |
| 21 | #define WM8350_AUX1_READBACK 0x98 |
| 22 | #define WM8350_AUX2_READBACK 0x99 |
| 23 | #define WM8350_AUX3_READBACK 0x9A |
| 24 | #define WM8350_AUX4_READBACK 0x9B |
| 25 | #define WM8350_CHIP_TEMP_READBACK 0x9F |
| 26 | #define WM8350_GENERIC_COMPARATOR_CONTROL 0xA3 |
| 27 | #define WM8350_GENERIC_COMPARATOR_1 0xA4 |
| 28 | #define WM8350_GENERIC_COMPARATOR_2 0xA5 |
| 29 | #define WM8350_GENERIC_COMPARATOR_3 0xA6 |
| 30 | #define WM8350_GENERIC_COMPARATOR_4 0xA7 |
| 31 | |
| 32 | /* |
| 33 | * R144 (0x90) - Digitiser Control (1) |
| 34 | */ |
| 35 | #define WM8350_AUXADC_CTC 0x4000 |
| 36 | #define WM8350_AUXADC_POLL 0x2000 |
| 37 | #define WM8350_AUXADC_HIB_MODE 0x1000 |
| 38 | #define WM8350_AUXADC_SEL8 0x0080 |
| 39 | #define WM8350_AUXADC_SEL7 0x0040 |
| 40 | #define WM8350_AUXADC_SEL6 0x0020 |
| 41 | #define WM8350_AUXADC_SEL5 0x0010 |
| 42 | #define WM8350_AUXADC_SEL4 0x0008 |
| 43 | #define WM8350_AUXADC_SEL3 0x0004 |
| 44 | #define WM8350_AUXADC_SEL2 0x0002 |
| 45 | #define WM8350_AUXADC_SEL1 0x0001 |
| 46 | |
| 47 | /* |
| 48 | * R145 (0x91) - Digitiser Control (2) |
| 49 | */ |
| 50 | #define WM8350_AUXADC_MASKMODE_MASK 0x3000 |
| 51 | #define WM8350_AUXADC_CRATE_MASK 0x0700 |
| 52 | #define WM8350_AUXADC_CAL 0x0004 |
| 53 | #define WM8350_AUX_RBMODE 0x0002 |
| 54 | #define WM8350_AUXADC_WAIT 0x0001 |
| 55 | |
| 56 | /* |
| 57 | * R152 (0x98) - AUX1 Readback |
| 58 | */ |
| 59 | #define WM8350_AUXADC_SCALE1_MASK 0x6000 |
| 60 | #define WM8350_AUXADC_REF1 0x1000 |
| 61 | #define WM8350_AUXADC_DATA1_MASK 0x0FFF |
| 62 | |
| 63 | /* |
| 64 | * R153 (0x99) - AUX2 Readback |
| 65 | */ |
| 66 | #define WM8350_AUXADC_SCALE2_MASK 0x6000 |
| 67 | #define WM8350_AUXADC_REF2 0x1000 |
| 68 | #define WM8350_AUXADC_DATA2_MASK 0x0FFF |
| 69 | |
| 70 | /* |
| 71 | * R154 (0x9A) - AUX3 Readback |
| 72 | */ |
| 73 | #define WM8350_AUXADC_SCALE3_MASK 0x6000 |
| 74 | #define WM8350_AUXADC_REF3 0x1000 |
| 75 | #define WM8350_AUXADC_DATA3_MASK 0x0FFF |
| 76 | |
| 77 | /* |
| 78 | * R155 (0x9B) - AUX4 Readback |
| 79 | */ |
| 80 | #define WM8350_AUXADC_SCALE4_MASK 0x6000 |
| 81 | #define WM8350_AUXADC_REF4 0x1000 |
| 82 | #define WM8350_AUXADC_DATA4_MASK 0x0FFF |
| 83 | |
| 84 | /* |
| 85 | * R156 (0x9C) - USB Voltage Readback |
| 86 | */ |
| 87 | #define WM8350_AUXADC_DATA_USB_MASK 0x0FFF |
| 88 | |
| 89 | /* |
| 90 | * R157 (0x9D) - LINE Voltage Readback |
| 91 | */ |
| 92 | #define WM8350_AUXADC_DATA_LINE_MASK 0x0FFF |
| 93 | |
| 94 | /* |
| 95 | * R158 (0x9E) - BATT Voltage Readback |
| 96 | */ |
| 97 | #define WM8350_AUXADC_DATA_BATT_MASK 0x0FFF |
| 98 | |
| 99 | /* |
| 100 | * R159 (0x9F) - Chip Temp Readback |
| 101 | */ |
| 102 | #define WM8350_AUXADC_DATA_CHIPTEMP_MASK 0x0FFF |
| 103 | |
| 104 | /* |
| 105 | * R163 (0xA3) - Generic Comparator Control |
| 106 | */ |
| 107 | #define WM8350_DCMP4_ENA 0x0008 |
| 108 | #define WM8350_DCMP3_ENA 0x0004 |
| 109 | #define WM8350_DCMP2_ENA 0x0002 |
| 110 | #define WM8350_DCMP1_ENA 0x0001 |
| 111 | |
| 112 | /* |
| 113 | * R164 (0xA4) - Generic comparator 1 |
| 114 | */ |
| 115 | #define WM8350_DCMP1_SRCSEL_MASK 0xE000 |
| 116 | #define WM8350_DCMP1_GT 0x1000 |
| 117 | #define WM8350_DCMP1_THR_MASK 0x0FFF |
| 118 | |
| 119 | /* |
| 120 | * R165 (0xA5) - Generic comparator 2 |
| 121 | */ |
| 122 | #define WM8350_DCMP2_SRCSEL_MASK 0xE000 |
| 123 | #define WM8350_DCMP2_GT 0x1000 |
| 124 | #define WM8350_DCMP2_THR_MASK 0x0FFF |
| 125 | |
| 126 | /* |
| 127 | * R166 (0xA6) - Generic comparator 3 |
| 128 | */ |
| 129 | #define WM8350_DCMP3_SRCSEL_MASK 0xE000 |
| 130 | #define WM8350_DCMP3_GT 0x1000 |
| 131 | #define WM8350_DCMP3_THR_MASK 0x0FFF |
| 132 | |
| 133 | /* |
| 134 | * R167 (0xA7) - Generic comparator 4 |
| 135 | */ |
| 136 | #define WM8350_DCMP4_SRCSEL_MASK 0xE000 |
| 137 | #define WM8350_DCMP4_GT 0x1000 |
| 138 | #define WM8350_DCMP4_THR_MASK 0x0FFF |
| 139 | |
| 140 | /* |
| 141 | * Interrupts. |
| 142 | */ |
| 143 | #define WM8350_IRQ_AUXADC_DATARDY 16 |
| 144 | #define WM8350_IRQ_AUXADC_DCOMP4 17 |
| 145 | #define WM8350_IRQ_AUXADC_DCOMP3 18 |
| 146 | #define WM8350_IRQ_AUXADC_DCOMP2 19 |
| 147 | #define WM8350_IRQ_AUXADC_DCOMP1 20 |
| 148 | #define WM8350_IRQ_SYS_HYST_COMP_FAIL 21 |
| 149 | #define WM8350_IRQ_SYS_CHIP_GT115 22 |
| 150 | #define WM8350_IRQ_SYS_CHIP_GT140 23 |
| 151 | |
| 152 | /* |
| 153 | * USB/2, LINE & BATT = ((VRTC * 2) / 4095)) * 10e6 uV |
| 154 | * Where VRTC = 2.7 V |
| 155 | */ |
| 156 | #define WM8350_AUX_COEFF 1319 |
| 157 | |
| 158 | #define WM8350_AUXADC_AUX1 0 |
| 159 | #define WM8350_AUXADC_AUX2 1 |
| 160 | #define WM8350_AUXADC_AUX3 2 |
| 161 | #define WM8350_AUXADC_AUX4 3 |
| 162 | #define WM8350_AUXADC_USB 4 |
| 163 | #define WM8350_AUXADC_LINE 5 |
| 164 | #define WM8350_AUXADC_BATT 6 |
| 165 | #define WM8350_AUXADC_TEMP 7 |
| 166 | |
Mark Brown | 6748852 | 2008-11-08 01:10:21 +0100 | [diff] [blame] | 167 | struct wm8350; |
| 168 | |
| 169 | /* |
| 170 | * AUX ADC Readback |
| 171 | */ |
| 172 | int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, |
| 173 | int vref); |
| 174 | |
Mark Brown | e7aabc3 | 2008-10-10 15:58:07 +0100 | [diff] [blame] | 175 | #endif |