1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2010 ST-Ericsson SA
4 *
5 * Author: Arun R Murthy <arun.murthy@stericsson.com>
6 * Author: Daniel Willerud <daniel.willerud@stericsson.com>
7 * Author: M'boumba Cedric Madianga <cedric.madianga@stericsson.com>
8 */
9
10 #ifndef _AB8500_GPADC_H
11 #define _AB8500_GPADC_H
12
13 /* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2
14 * and ADCHwSel[4:0] in GPADCCtrl3 ) */
15 #define BAT_CTRL 0x01
16 #define BTEMP_BALL 0x02
17 #define MAIN_CHARGER_V 0x03
18 #define ACC_DETECT1 0x04
19 #define ACC_DETECT2 0x05
20 #define ADC_AUX1 0x06
21 #define ADC_AUX2 0x07
22 #define MAIN_BAT_V 0x08
23 #define VBUS_V 0x09
24 #define MAIN_CHARGER_C 0x0A
25 #define USB_CHARGER_C 0x0B
26 #define BK_BAT_V 0x0C
27 #define DIE_TEMP 0x0D
28 #define USB_ID 0x0E
29 #define XTAL_TEMP 0x12
30 #define VBAT_TRUE_MEAS 0x13
31 #define BAT_CTRL_AND_IBAT 0x1C
32 #define VBAT_MEAS_AND_IBAT 0x1D
33 #define VBAT_TRUE_MEAS_AND_IBAT 0x1E
34 #define BAT_TEMP_AND_IBAT 0x1F
35
36 /* Virtual channel used only for ibat convertion to ampere
37 * Battery current conversion (ibat) cannot be requested as a single conversion
38 * but it is always in combination with other input requests
39 */
40 #define IBAT_VIRTUAL_CHANNEL 0xFF
41
42 #define SAMPLE_1 1
43 #define SAMPLE_4 4
44 #define SAMPLE_8 8
45 #define SAMPLE_16 16
46 #define RISING_EDGE 0
47 #define FALLING_EDGE 1
48
49 /* Arbitrary ADC conversion type constants */
50 #define ADC_SW 0
51 #define ADC_HW 1
52
53 struct ab8500_gpadc;
54
55 struct ab8500_gpadc *ab8500_gpadc_get(char *name);
56 int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
57 u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
ab8500_gpadc_convert(struct ab8500_gpadc * gpadc,u8 channel)58 static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel)
59 {
60 return ab8500_gpadc_sw_hw_convert(gpadc, channel,
61 SAMPLE_16, 0, 0, ADC_SW);
62 }
63
64 int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
65 u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
66 int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
67 u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type,
68 int *ibat);
69 int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
70 u8 channel, int ad_value);
71 void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
72 u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h,
73 u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h);
74
75 #endif /* _AB8500_GPADC_H */
76
