w1_ds2780.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * 1-Wire implementation for the ds2780 chip
  4 *
  5 * Copyright (C) 2010 Indesign, LLC
  6 *
  7 * Author: Clifton Barnes <cabarnes@indesign-llc.com>
  8 *
  9 * Based on w1-ds2760 driver
 10 */
 11
 12#ifndef _W1_DS2780_H
 13#define _W1_DS2780_H
 14
 15/* Function commands */
 16#define W1_DS2780_READ_DATA		0x69
 17#define W1_DS2780_WRITE_DATA		0x6C
 18#define W1_DS2780_COPY_DATA		0x48
 19#define W1_DS2780_RECALL_DATA		0xB8
 20#define W1_DS2780_LOCK			0x6A
 21
 22/* Register map */
 23/* Register 0x00 Reserved */
 24#define DS2780_STATUS_REG		0x01
 25#define DS2780_RAAC_MSB_REG		0x02
 26#define DS2780_RAAC_LSB_REG		0x03
 27#define DS2780_RSAC_MSB_REG		0x04
 28#define DS2780_RSAC_LSB_REG		0x05
 29#define DS2780_RARC_REG			0x06
 30#define DS2780_RSRC_REG			0x07
 31#define DS2780_IAVG_MSB_REG		0x08
 32#define DS2780_IAVG_LSB_REG		0x09
 33#define DS2780_TEMP_MSB_REG		0x0A
 34#define DS2780_TEMP_LSB_REG		0x0B
 35#define DS2780_VOLT_MSB_REG		0x0C
 36#define DS2780_VOLT_LSB_REG		0x0D
 37#define DS2780_CURRENT_MSB_REG		0x0E
 38#define DS2780_CURRENT_LSB_REG		0x0F
 39#define DS2780_ACR_MSB_REG		0x10
 40#define DS2780_ACR_LSB_REG		0x11
 41#define DS2780_ACRL_MSB_REG		0x12
 42#define DS2780_ACRL_LSB_REG		0x13
 43#define DS2780_AS_REG			0x14
 44#define DS2780_SFR_REG			0x15
 45#define DS2780_FULL_MSB_REG		0x16
 46#define DS2780_FULL_LSB_REG		0x17
 47#define DS2780_AE_MSB_REG		0x18
 48#define DS2780_AE_LSB_REG		0x19
 49#define DS2780_SE_MSB_REG		0x1A
 50#define DS2780_SE_LSB_REG		0x1B
 51/* Register 0x1C - 0x1E Reserved */
 52#define DS2780_EEPROM_REG		0x1F
 53#define DS2780_EEPROM_BLOCK0_START	0x20
 54/* Register 0x20 - 0x2F User EEPROM */
 55#define DS2780_EEPROM_BLOCK0_END	0x2F
 56/* Register 0x30 - 0x5F Reserved */
 57#define DS2780_EEPROM_BLOCK1_START	0x60
 58#define DS2780_CONTROL_REG		0x60
 59#define DS2780_AB_REG			0x61
 60#define DS2780_AC_MSB_REG		0x62
 61#define DS2780_AC_LSB_REG		0x63
 62#define DS2780_VCHG_REG			0x64
 63#define DS2780_IMIN_REG			0x65
 64#define DS2780_VAE_REG			0x66
 65#define DS2780_IAE_REG			0x67
 66#define DS2780_AE_40_REG		0x68
 67#define DS2780_RSNSP_REG		0x69
 68#define DS2780_FULL_40_MSB_REG		0x6A
 69#define DS2780_FULL_40_LSB_REG		0x6B
 70#define DS2780_FULL_3040_SLOPE_REG	0x6C
 71#define DS2780_FULL_2030_SLOPE_REG	0x6D
 72#define DS2780_FULL_1020_SLOPE_REG	0x6E
 73#define DS2780_FULL_0010_SLOPE_REG	0x6F
 74#define DS2780_AE_3040_SLOPE_REG	0x70
 75#define DS2780_AE_2030_SLOPE_REG	0x71
 76#define DS2780_AE_1020_SLOPE_REG	0x72
 77#define DS2780_AE_0010_SLOPE_REG	0x73
 78#define DS2780_SE_3040_SLOPE_REG	0x74
 79#define DS2780_SE_2030_SLOPE_REG	0x75
 80#define DS2780_SE_1020_SLOPE_REG	0x76
 81#define DS2780_SE_0010_SLOPE_REG	0x77
 82#define DS2780_RSGAIN_MSB_REG		0x78
 83#define DS2780_RSGAIN_LSB_REG		0x79
 84#define DS2780_RSTC_REG			0x7A
 85#define DS2780_FRSGAIN_MSB_REG		0x7B
 86#define DS2780_FRSGAIN_LSB_REG		0x7C
 87#define DS2780_EEPROM_BLOCK1_END	0x7C
 88/* Register 0x7D - 0xFF Reserved */
 89
 90/* Number of valid register addresses */
 91#define DS2780_DATA_SIZE		0x80
 92
 93/* Status register bits */
 94#define DS2780_STATUS_REG_CHGTF		(1 << 7)
 95#define DS2780_STATUS_REG_AEF		(1 << 6)
 96#define DS2780_STATUS_REG_SEF		(1 << 5)
 97#define DS2780_STATUS_REG_LEARNF	(1 << 4)
 98/* Bit 3 Reserved */
 99#define DS2780_STATUS_REG_UVF		(1 << 2)
100#define DS2780_STATUS_REG_PORF		(1 << 1)
101/* Bit 0 Reserved */
102
103/* Control register bits */
104/* Bit 7 Reserved */
105#define DS2780_CONTROL_REG_UVEN		(1 << 6)
106#define DS2780_CONTROL_REG_PMOD		(1 << 5)
107#define DS2780_CONTROL_REG_RNAOP	(1 << 4)
108/* Bit 0 - 3 Reserved */
109
110/* Special feature register bits */
111/* Bit 1 - 7 Reserved */
112#define DS2780_SFR_REG_PIOSC		(1 << 0)
113
114/* EEPROM register bits */
115#define DS2780_EEPROM_REG_EEC		(1 << 7)
116#define DS2780_EEPROM_REG_LOCK		(1 << 6)
117/* Bit 2 - 6 Reserved */
118#define DS2780_EEPROM_REG_BL1		(1 << 1)
119#define DS2780_EEPROM_REG_BL0		(1 << 0)
120
121extern int w1_ds2780_io(struct device *dev, char *buf, int addr, size_t count,
122			int io);
123extern int w1_ds2780_eeprom_cmd(struct device *dev, int addr, int cmd);
124
125#endif /* !_W1_DS2780_H */