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max1730x.h
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max1730x.h
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2019 Google, LLC
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef MAX1730X_H_
#define MAX1730X_H_
#include <linux/device.h>
#include <linux/regmap.h>
#include "max1720x.h"
#define MAX1730X_N_OF_HISTORY_PAGES 100
#define MAX1730X_GAUGE_PASS1 0x404
#define MAX1730X_NVPRTTH1_CHARGING 0x0008
#define MAX1730X_NPROTCFG_PASS1 0x6EA3
#define MAX1730X_NPROTCFG_PASS2 0x0A04
enum max1730x_register {
MAX1730X_MAXMINVOLT = 0x08,
MAX1730X_MAXMINTEMP = 0x09,
MAX1730X_MAXMINCURR = 0x0A,
MAX1730X_CONFIG = 0x0B,
MAX1730X_FULLCAPREP = 0x10,
MAX1730X_VCELL = 0x1A,
MAX1730X_TEMP = 0x1B,
MAX1730X_CURRENT = 0x1C,
MAX1730X_AVGCURRENT = 0x1D,
MAX1730X_MIXCAP = 0x2B,
MAX1730X_FULLCAP = 0x35,
MAX1730X_LEARNCFG = 0xA1,
MAX1730X_MAXPEAKPWR = 0xA4,
MAX1730X_SUSPEAKPWR = 0xA5,
MAX1730X_PACKRESISTANCE = 0xA6,
MAX1730X_SYSRESISTANCE = 0xA7,
MAX1730X_MINSYSVOLTAGE = 0xA8,
MAX1730X_MPPCURRENT = 0xA9,
MAX1730X_SPPCURRENT = 0xAA,
MAX1730X_CONFIG2 = 0xAB,
MAX1730X_IALRTTH = 0xAC,
MAX1730X_MINVOLT = 0xAD,
MAX1730X_MINCURR = 0xAE,
MAX1730X_NVPRTTH1BAK = 0xD6,
MAX1730X_NPROTCFG = 0xD7,
};
enum max1730x_nvram {
MAX1730X_NVRAM_START = 0x80,
MAX1730X_NMANFCTRNAME0 = 0xCC,
MAX1730X_NMANFCTRNAME1 = 0xCD,
MAX1730X_NVPRTTH1 = 0xD0,
MAX1730X_NDPLIMIT = 0xE0,
MAX1730X_NSCOCVLIM = 0xE1,
MAX1730X_NVRAM_END = 0xEF,
MAX1730X_HISTORY_START = 0xF0,
MAX1730X_HISTORY_WRITE_STATUS_START = 0xF2,
MAX1730X_HISTORY_VALID_STATUS_END = 0xFB,
MAX1730X_HISTORY_WRITE_STATUS_END = 0xFE,
MAX1730X_HISTORY_END = 0xFF,
};
enum max1730x_command_bits {
MAX1730X_COMMAND_FUEL_GAUGE_RESET = 0x8000,
MAX1730X_READ_HISTORY_CMD_BASE = 0xE22E,
MAX1730X_COMMAND_HISTORY_RECALL_WRITE_0 = 0xE29C,
MAX1730X_COMMAND_HISTORY_RECALL_VALID_0 = 0xE29C,
MAX1730X_COMMAND_HISTORY_RECALL_VALID_1 = 0xE29D,
};
#define MAX1730X_HISTORY_PAGE_SIZE \
(MAX1730X_HISTORY_END - MAX1730X_HISTORY_START + 1)
#define MAX1730X_N_OF_HISTORY_FLAGS_REG \
(MAX1730X_HISTORY_END - \
MAX1730X_HISTORY_END + 1 + \
MAX1730X_HISTORY_VALID_STATUS_END - \
MAX1730X_HISTORY_START + 1)
/** ------------------------------------------------------------------------ */
static bool max1730x_is_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case MAX1720X_COMMAND:
case MAX1720X_COMMSTAT:
case MAX1720X_LOCK:
case MAX1720X_ODSCTH:
case MAX1720X_ODSCCFG:
case MAX1720X_VFOCV:
case MAX1720X_VFSOC:
case 0x00 ... 0x4F:
case 0xA0 ... 0xAE:
case 0xB0 ... 0xDF:
case 0xF0:
case 0xF5:
return true;
}
return false;
}
static const struct regmap_config max1730x_regmap_cfg = {
.reg_bits = 8,
.val_bits = 16,
.val_format_endian = REGMAP_ENDIAN_NATIVE,
.max_register = MAX1720X_VFSOC,
.readable_reg = max1730x_is_reg,
.volatile_reg = max1730x_is_reg,
};
static bool max1730x_is_nvram_reg(struct device *dev, unsigned int reg)
{
return (reg >= MAX1730X_NVRAM_START &&
reg <= MAX1730X_HISTORY_END);
}
const struct regmap_config max1730x_regmap_nvram_cfg = {
.reg_bits = 8,
.val_bits = 16,
.val_format_endian = REGMAP_ENDIAN_NATIVE,
.max_register = MAX1730X_HISTORY_END,
.readable_reg = max1730x_is_nvram_reg,
.volatile_reg = max1730x_is_nvram_reg,
};
/** ------------------------------------------------------------------------ */
/* see b/119416045 for layout */
static const struct max17x0x_reg max1730x[] = {
[MAX17X0X_TAG_avgc] = { ATOM_INIT_REG16(MAX1730X_AVGCURRENT)},
[MAX17X0X_TAG_cnfg] = { ATOM_INIT_REG16(MAX1730X_CONFIG)},
[MAX17X0X_TAG_mmdv] = { ATOM_INIT_REG16(MAX1730X_MAXMINVOLT)},
[MAX17X0X_TAG_vcel] = { ATOM_INIT_REG16(MAX1730X_VCELL)},
[MAX17X0X_TAG_temp] = { ATOM_INIT_REG16(MAX1730X_TEMP)},
[MAX17X0X_TAG_curr] = { ATOM_INIT_REG16(MAX1730X_CURRENT)},
[MAX17X0X_TAG_mcap] = { ATOM_INIT_REG16(MAX1730X_MIXCAP)},
[MAX17X0X_TAG_avgr] = { ATOM_INIT_REG16(MAX1730X_NMANFCTRNAME1) },
[MAX17X0X_TAG_vfsoc] = { ATOM_INIT_REG16(MAX1720X_VFSOC)},
[MAX17X0X_TAG_vfocv] = { ATOM_INIT_REG16(MAX1720X_VFOCV)},
[MAX17X0X_TAG_BCNT] = { ATOM_INIT_MAP(0x8e, 0x8f, 0x9d, 0x9e, 0x9f,
0xb2, 0xb4, 0xb6, 0xc7, 0xe2)},
[MAX17X0X_TAG_SNUM] = { ATOM_INIT_MAP(0xce, 0xe6, 0xe7, 0xe8, 0xe9,
0xea, 0xeb, 0xec, 0xed, 0xee,
0xef) },
[MAX17X0X_TAG_HSTY] = { ATOM_INIT_SET(0xf0, 0xf2, 0xfb, 0xfe, 0xff) },
[MAX17X0X_TAG_BCEA] = { ATOM_INIT_SET(MAX1730X_NMANFCTRNAME0,
MAX1730X_NDPLIMIT,
MAX1730X_NSCOCVLIM) },
[MAX17X0X_TAG_rset] = { ATOM_INIT_SET16(MAX1730X_CONFIG2,
MAX1730X_COMMAND_FUEL_GAUGE_RESET,
700)},
[MAX17X0X_TAG_BRES] = { ATOM_INIT_SET(MAX1730X_NMANFCTRNAME1,
MAX1730X_NMANFCTRNAME0) },
};
#endif