2190 lines
61 KiB
C
2190 lines
61 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* BQ27xxx battery driver
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*
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* Copyright (C) 2008 Rodolfo Giometti <giometti@linux.it>
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* Copyright (C) 2008 Eurotech S.p.A. <info@eurotech.it>
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* Copyright (C) 2010-2011 Lars-Peter Clausen <lars@metafoo.de>
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* Copyright (C) 2011 Pali Rohár <pali@kernel.org>
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* Copyright (C) 2017 Liam Breck <kernel@networkimprov.net>
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*
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* Based on a previous work by Copyright (C) 2008 Texas Instruments, Inc.
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*
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* Datasheets:
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* https://www.ti.com/product/bq27000
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* https://www.ti.com/product/bq27200
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* https://www.ti.com/product/bq27010
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* https://www.ti.com/product/bq27210
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* https://www.ti.com/product/bq27500
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* https://www.ti.com/product/bq27510-g1
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* https://www.ti.com/product/bq27510-g2
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* https://www.ti.com/product/bq27510-g3
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* https://www.ti.com/product/bq27520-g1
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* https://www.ti.com/product/bq27520-g2
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* https://www.ti.com/product/bq27520-g3
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* https://www.ti.com/product/bq27520-g4
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* https://www.ti.com/product/bq27530-g1
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* https://www.ti.com/product/bq27531-g1
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* https://www.ti.com/product/bq27541-g1
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* https://www.ti.com/product/bq27542-g1
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* https://www.ti.com/product/bq27546-g1
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* https://www.ti.com/product/bq27742-g1
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* https://www.ti.com/product/bq27545-g1
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* https://www.ti.com/product/bq27421-g1
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* https://www.ti.com/product/bq27425-g1
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* https://www.ti.com/product/bq27426
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* https://www.ti.com/product/bq27411-g1
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* https://www.ti.com/product/bq27441-g1
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* https://www.ti.com/product/bq27621-g1
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* https://www.ti.com/product/bq27z561
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* https://www.ti.com/product/bq28z610
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* https://www.ti.com/product/bq34z100-g1
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* https://www.ti.com/product/bq78z100
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/param.h>
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#include <linux/jiffies.h>
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#include <linux/workqueue.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/power_supply.h>
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#include <linux/slab.h>
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#include <linux/of.h>
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#include <linux/power/bq27xxx_battery.h>
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#define BQ27XXX_MANUFACTURER "Texas Instruments"
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/* BQ27XXX Flags */
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#define BQ27XXX_FLAG_DSC BIT(0)
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#define BQ27XXX_FLAG_SOCF BIT(1) /* State-of-Charge threshold final */
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#define BQ27XXX_FLAG_SOC1 BIT(2) /* State-of-Charge threshold 1 */
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#define BQ27XXX_FLAG_CFGUP BIT(4)
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#define BQ27XXX_FLAG_FC BIT(9)
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#define BQ27XXX_FLAG_OTD BIT(14)
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#define BQ27XXX_FLAG_OTC BIT(15)
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#define BQ27XXX_FLAG_UT BIT(14)
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#define BQ27XXX_FLAG_OT BIT(15)
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/* BQ27000 has different layout for Flags register */
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#define BQ27000_FLAG_EDVF BIT(0) /* Final End-of-Discharge-Voltage flag */
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#define BQ27000_FLAG_EDV1 BIT(1) /* First End-of-Discharge-Voltage flag */
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#define BQ27000_FLAG_CI BIT(4) /* Capacity Inaccurate flag */
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#define BQ27000_FLAG_FC BIT(5)
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#define BQ27000_FLAG_CHGS BIT(7) /* Charge state flag */
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/* BQ27Z561 has different layout for Flags register */
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#define BQ27Z561_FLAG_FDC BIT(4) /* Battery fully discharged */
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#define BQ27Z561_FLAG_FC BIT(5) /* Battery fully charged */
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#define BQ27Z561_FLAG_DIS_CH BIT(6) /* Battery is discharging */
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/* control register params */
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#define BQ27XXX_SEALED 0x20
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#define BQ27XXX_SET_CFGUPDATE 0x13
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#define BQ27XXX_SOFT_RESET 0x42
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#define BQ27XXX_RESET 0x41
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#define BQ27XXX_RS (20) /* Resistor sense mOhm */
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#define BQ27XXX_POWER_CONSTANT (29200) /* 29.2 µV^2 * 1000 */
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#define BQ27XXX_CURRENT_CONSTANT (3570) /* 3.57 µV * 1000 */
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#define INVALID_REG_ADDR 0xff
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/*
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* bq27xxx_reg_index - Register names
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*
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* These are indexes into a device's register mapping array.
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*/
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enum bq27xxx_reg_index {
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BQ27XXX_REG_CTRL = 0, /* Control */
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BQ27XXX_REG_TEMP, /* Temperature */
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BQ27XXX_REG_INT_TEMP, /* Internal Temperature */
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BQ27XXX_REG_VOLT, /* Voltage */
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BQ27XXX_REG_AI, /* Average Current */
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BQ27XXX_REG_FLAGS, /* Flags */
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BQ27XXX_REG_TTE, /* Time-to-Empty */
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BQ27XXX_REG_TTF, /* Time-to-Full */
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BQ27XXX_REG_TTES, /* Time-to-Empty Standby */
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BQ27XXX_REG_TTECP, /* Time-to-Empty at Constant Power */
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BQ27XXX_REG_NAC, /* Nominal Available Capacity */
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BQ27XXX_REG_RC, /* Remaining Capacity */
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BQ27XXX_REG_FCC, /* Full Charge Capacity */
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BQ27XXX_REG_CYCT, /* Cycle Count */
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BQ27XXX_REG_AE, /* Available Energy */
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BQ27XXX_REG_SOC, /* State-of-Charge */
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BQ27XXX_REG_DCAP, /* Design Capacity */
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BQ27XXX_REG_AP, /* Average Power */
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BQ27XXX_DM_CTRL, /* Block Data Control */
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BQ27XXX_DM_CLASS, /* Data Class */
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BQ27XXX_DM_BLOCK, /* Data Block */
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BQ27XXX_DM_DATA, /* Block Data */
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BQ27XXX_DM_CKSUM, /* Block Data Checksum */
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BQ27XXX_REG_MAX, /* sentinel */
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};
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#define BQ27XXX_DM_REG_ROWS \
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[BQ27XXX_DM_CTRL] = 0x61, \
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[BQ27XXX_DM_CLASS] = 0x3e, \
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[BQ27XXX_DM_BLOCK] = 0x3f, \
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[BQ27XXX_DM_DATA] = 0x40, \
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[BQ27XXX_DM_CKSUM] = 0x60
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/* Register mappings */
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static u8
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bq27000_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = 0x18,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = 0x26,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = INVALID_REG_ADDR,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x2a,
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[BQ27XXX_REG_AE] = 0x22,
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[BQ27XXX_REG_SOC] = 0x0b,
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[BQ27XXX_REG_DCAP] = 0x76,
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[BQ27XXX_REG_AP] = 0x24,
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[BQ27XXX_DM_CTRL] = INVALID_REG_ADDR,
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[BQ27XXX_DM_CLASS] = INVALID_REG_ADDR,
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[BQ27XXX_DM_BLOCK] = INVALID_REG_ADDR,
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[BQ27XXX_DM_DATA] = INVALID_REG_ADDR,
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[BQ27XXX_DM_CKSUM] = INVALID_REG_ADDR,
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},
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bq27010_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = 0x18,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = 0x26,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = INVALID_REG_ADDR,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x2a,
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[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
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[BQ27XXX_REG_SOC] = 0x0b,
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[BQ27XXX_REG_DCAP] = 0x76,
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[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
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[BQ27XXX_DM_CTRL] = INVALID_REG_ADDR,
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[BQ27XXX_DM_CLASS] = INVALID_REG_ADDR,
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[BQ27XXX_DM_BLOCK] = INVALID_REG_ADDR,
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[BQ27XXX_DM_DATA] = INVALID_REG_ADDR,
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[BQ27XXX_DM_CKSUM] = INVALID_REG_ADDR,
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},
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bq2750x_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = 0x28,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTES] = 0x1a,
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[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x2a,
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[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
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[BQ27XXX_REG_SOC] = 0x2c,
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[BQ27XXX_REG_DCAP] = 0x3c,
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[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
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BQ27XXX_DM_REG_ROWS,
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},
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#define bq2751x_regs bq27510g3_regs
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#define bq2752x_regs bq27510g3_regs
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bq27500_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = 0x18,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = 0x26,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x2a,
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[BQ27XXX_REG_AE] = 0x22,
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[BQ27XXX_REG_SOC] = 0x2c,
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[BQ27XXX_REG_DCAP] = 0x3c,
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[BQ27XXX_REG_AP] = 0x24,
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BQ27XXX_DM_REG_ROWS,
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},
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#define bq27510g1_regs bq27500_regs
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#define bq27510g2_regs bq27500_regs
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bq27510g3_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = 0x28,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTES] = 0x1a,
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[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x1e,
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[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
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[BQ27XXX_REG_SOC] = 0x20,
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[BQ27XXX_REG_DCAP] = 0x2e,
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[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
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BQ27XXX_DM_REG_ROWS,
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},
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bq27520g1_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = 0x18,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = 0x26,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = INVALID_REG_ADDR,
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[BQ27XXX_REG_AE] = 0x22,
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[BQ27XXX_REG_SOC] = 0x2c,
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[BQ27XXX_REG_DCAP] = 0x3c,
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[BQ27XXX_REG_AP] = 0x24,
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BQ27XXX_DM_REG_ROWS,
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},
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bq27520g2_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = 0x36,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = 0x18,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = 0x26,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x2a,
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[BQ27XXX_REG_AE] = 0x22,
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[BQ27XXX_REG_SOC] = 0x2c,
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[BQ27XXX_REG_DCAP] = 0x3c,
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[BQ27XXX_REG_AP] = 0x24,
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BQ27XXX_DM_REG_ROWS,
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},
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bq27520g3_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = 0x36,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = 0x26,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x2a,
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[BQ27XXX_REG_AE] = 0x22,
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[BQ27XXX_REG_SOC] = 0x2c,
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[BQ27XXX_REG_DCAP] = 0x3c,
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[BQ27XXX_REG_AP] = 0x24,
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BQ27XXX_DM_REG_ROWS,
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},
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bq27520g4_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x00,
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[BQ27XXX_REG_TEMP] = 0x06,
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[BQ27XXX_REG_INT_TEMP] = 0x28,
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[BQ27XXX_REG_VOLT] = 0x08,
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[BQ27XXX_REG_AI] = 0x14,
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[BQ27XXX_REG_FLAGS] = 0x0a,
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[BQ27XXX_REG_TTE] = 0x16,
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[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTES] = 0x1c,
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[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_NAC] = 0x0c,
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[BQ27XXX_REG_RC] = 0x10,
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[BQ27XXX_REG_FCC] = 0x12,
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[BQ27XXX_REG_CYCT] = 0x1e,
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[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
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[BQ27XXX_REG_SOC] = 0x20,
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[BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
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BQ27XXX_DM_REG_ROWS,
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},
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bq27521_regs[BQ27XXX_REG_MAX] = {
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[BQ27XXX_REG_CTRL] = 0x02,
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[BQ27XXX_REG_TEMP] = 0x0a,
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[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_VOLT] = 0x0c,
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[BQ27XXX_REG_AI] = 0x0e,
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[BQ27XXX_REG_FLAGS] = 0x08,
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[BQ27XXX_REG_TTE] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
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[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_NAC] = INVALID_REG_ADDR,
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[BQ27XXX_REG_RC] = INVALID_REG_ADDR,
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[BQ27XXX_REG_FCC] = INVALID_REG_ADDR,
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[BQ27XXX_REG_CYCT] = INVALID_REG_ADDR,
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[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
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[BQ27XXX_REG_SOC] = INVALID_REG_ADDR,
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[BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
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[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_DM_CTRL] = INVALID_REG_ADDR,
|
|
[BQ27XXX_DM_CLASS] = INVALID_REG_ADDR,
|
|
[BQ27XXX_DM_BLOCK] = INVALID_REG_ADDR,
|
|
[BQ27XXX_DM_DATA] = INVALID_REG_ADDR,
|
|
[BQ27XXX_DM_CKSUM] = INVALID_REG_ADDR,
|
|
},
|
|
bq27530_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x06,
|
|
[BQ27XXX_REG_INT_TEMP] = 0x32,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x14,
|
|
[BQ27XXX_REG_FLAGS] = 0x0a,
|
|
[BQ27XXX_REG_TTE] = 0x16,
|
|
[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = 0x0c,
|
|
[BQ27XXX_REG_RC] = 0x10,
|
|
[BQ27XXX_REG_FCC] = 0x12,
|
|
[BQ27XXX_REG_CYCT] = 0x2a,
|
|
[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_SOC] = 0x2c,
|
|
[BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_AP] = 0x24,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
#define bq27531_regs bq27530_regs
|
|
bq27541_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x06,
|
|
[BQ27XXX_REG_INT_TEMP] = 0x28,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x14,
|
|
[BQ27XXX_REG_FLAGS] = 0x0a,
|
|
[BQ27XXX_REG_TTE] = 0x16,
|
|
[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = 0x0c,
|
|
[BQ27XXX_REG_RC] = 0x10,
|
|
[BQ27XXX_REG_FCC] = 0x12,
|
|
[BQ27XXX_REG_CYCT] = 0x2a,
|
|
[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_SOC] = 0x2c,
|
|
[BQ27XXX_REG_DCAP] = 0x3c,
|
|
[BQ27XXX_REG_AP] = 0x24,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
#define bq27542_regs bq27541_regs
|
|
#define bq27546_regs bq27541_regs
|
|
#define bq27742_regs bq27541_regs
|
|
bq27545_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x06,
|
|
[BQ27XXX_REG_INT_TEMP] = 0x28,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x14,
|
|
[BQ27XXX_REG_FLAGS] = 0x0a,
|
|
[BQ27XXX_REG_TTE] = 0x16,
|
|
[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = 0x0c,
|
|
[BQ27XXX_REG_RC] = 0x10,
|
|
[BQ27XXX_REG_FCC] = 0x12,
|
|
[BQ27XXX_REG_CYCT] = 0x2a,
|
|
[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_SOC] = 0x2c,
|
|
[BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_AP] = 0x24,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
bq27421_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x02,
|
|
[BQ27XXX_REG_INT_TEMP] = 0x1e,
|
|
[BQ27XXX_REG_VOLT] = 0x04,
|
|
[BQ27XXX_REG_AI] = 0x10,
|
|
[BQ27XXX_REG_FLAGS] = 0x06,
|
|
[BQ27XXX_REG_TTE] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = 0x08,
|
|
[BQ27XXX_REG_RC] = 0x0c,
|
|
[BQ27XXX_REG_FCC] = 0x0e,
|
|
[BQ27XXX_REG_CYCT] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_SOC] = 0x1c,
|
|
[BQ27XXX_REG_DCAP] = 0x3c,
|
|
[BQ27XXX_REG_AP] = 0x18,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
#define bq27411_regs bq27421_regs
|
|
#define bq27425_regs bq27421_regs
|
|
#define bq27426_regs bq27421_regs
|
|
#define bq27441_regs bq27421_regs
|
|
#define bq27621_regs bq27421_regs
|
|
bq27z561_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x06,
|
|
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x14,
|
|
[BQ27XXX_REG_FLAGS] = 0x0a,
|
|
[BQ27XXX_REG_TTE] = 0x16,
|
|
[BQ27XXX_REG_TTF] = 0x18,
|
|
[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_RC] = 0x10,
|
|
[BQ27XXX_REG_FCC] = 0x12,
|
|
[BQ27XXX_REG_CYCT] = 0x2a,
|
|
[BQ27XXX_REG_AE] = 0x22,
|
|
[BQ27XXX_REG_SOC] = 0x2c,
|
|
[BQ27XXX_REG_DCAP] = 0x3c,
|
|
[BQ27XXX_REG_AP] = 0x22,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
bq28z610_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x06,
|
|
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x14,
|
|
[BQ27XXX_REG_FLAGS] = 0x0a,
|
|
[BQ27XXX_REG_TTE] = 0x16,
|
|
[BQ27XXX_REG_TTF] = 0x18,
|
|
[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_RC] = 0x10,
|
|
[BQ27XXX_REG_FCC] = 0x12,
|
|
[BQ27XXX_REG_CYCT] = 0x2a,
|
|
[BQ27XXX_REG_AE] = 0x22,
|
|
[BQ27XXX_REG_SOC] = 0x2c,
|
|
[BQ27XXX_REG_DCAP] = 0x3c,
|
|
[BQ27XXX_REG_AP] = 0x22,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
bq34z100_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x0c,
|
|
[BQ27XXX_REG_INT_TEMP] = 0x2a,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x0a,
|
|
[BQ27XXX_REG_FLAGS] = 0x0e,
|
|
[BQ27XXX_REG_TTE] = 0x18,
|
|
[BQ27XXX_REG_TTF] = 0x1a,
|
|
[BQ27XXX_REG_TTES] = 0x1e,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_RC] = 0x04,
|
|
[BQ27XXX_REG_FCC] = 0x06,
|
|
[BQ27XXX_REG_CYCT] = 0x2c,
|
|
[BQ27XXX_REG_AE] = 0x24,
|
|
[BQ27XXX_REG_SOC] = 0x02,
|
|
[BQ27XXX_REG_DCAP] = 0x3c,
|
|
[BQ27XXX_REG_AP] = 0x22,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
},
|
|
bq78z100_regs[BQ27XXX_REG_MAX] = {
|
|
[BQ27XXX_REG_CTRL] = 0x00,
|
|
[BQ27XXX_REG_TEMP] = 0x06,
|
|
[BQ27XXX_REG_INT_TEMP] = 0x28,
|
|
[BQ27XXX_REG_VOLT] = 0x08,
|
|
[BQ27XXX_REG_AI] = 0x14,
|
|
[BQ27XXX_REG_FLAGS] = 0x0a,
|
|
[BQ27XXX_REG_TTE] = 0x16,
|
|
[BQ27XXX_REG_TTF] = 0x18,
|
|
[BQ27XXX_REG_TTES] = 0x1c,
|
|
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_NAC] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_RC] = 0x10,
|
|
[BQ27XXX_REG_FCC] = 0x12,
|
|
[BQ27XXX_REG_CYCT] = 0x2a,
|
|
[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
|
|
[BQ27XXX_REG_SOC] = 0x2c,
|
|
[BQ27XXX_REG_DCAP] = 0x3c,
|
|
[BQ27XXX_REG_AP] = 0x22,
|
|
BQ27XXX_DM_REG_ROWS,
|
|
};
|
|
|
|
static enum power_supply_property bq27000_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_ENERGY_NOW,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq27010_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
#define bq2750x_props bq27510g3_props
|
|
#define bq2751x_props bq27510g3_props
|
|
#define bq2752x_props bq27510g3_props
|
|
|
|
static enum power_supply_property bq27500_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_ENERGY_NOW,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
#define bq27510g1_props bq27500_props
|
|
#define bq27510g2_props bq27500_props
|
|
|
|
static enum power_supply_property bq27510g3_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq27520g1_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_ENERGY_NOW,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
#define bq27520g2_props bq27500_props
|
|
|
|
static enum power_supply_property bq27520g3_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_ENERGY_NOW,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq27520g4_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq27521_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
};
|
|
|
|
static enum power_supply_property bq27530_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
#define bq27531_props bq27530_props
|
|
|
|
static enum power_supply_property bq27541_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
#define bq27542_props bq27541_props
|
|
#define bq27546_props bq27541_props
|
|
#define bq27742_props bq27541_props
|
|
|
|
static enum power_supply_property bq27545_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq27421_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
#define bq27411_props bq27421_props
|
|
#define bq27425_props bq27421_props
|
|
#define bq27426_props bq27421_props
|
|
#define bq27441_props bq27421_props
|
|
#define bq27621_props bq27421_props
|
|
|
|
static enum power_supply_property bq27z561_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq28z610_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq34z100_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_ENERGY_NOW,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
static enum power_supply_property bq78z100_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
|
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL,
|
|
POWER_SUPPLY_PROP_CHARGE_NOW,
|
|
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
|
};
|
|
|
|
struct bq27xxx_dm_reg {
|
|
u8 subclass_id;
|
|
u8 offset;
|
|
u8 bytes;
|
|
u16 min, max;
|
|
};
|
|
|
|
enum bq27xxx_dm_reg_id {
|
|
BQ27XXX_DM_DESIGN_CAPACITY = 0,
|
|
BQ27XXX_DM_DESIGN_ENERGY,
|
|
BQ27XXX_DM_TERMINATE_VOLTAGE,
|
|
};
|
|
|
|
#define bq27000_dm_regs NULL
|
|
#define bq27010_dm_regs NULL
|
|
#define bq2750x_dm_regs NULL
|
|
#define bq2751x_dm_regs NULL
|
|
#define bq2752x_dm_regs NULL
|
|
|
|
#if 0 /* not yet tested */
|
|
static struct bq27xxx_dm_reg bq27500_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 48, 10, 2, 0, 65535 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { }, /* missing on chip */
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 80, 48, 2, 1000, 32767 },
|
|
};
|
|
#else
|
|
#define bq27500_dm_regs NULL
|
|
#endif
|
|
|
|
/* todo create data memory definitions from datasheets and test on chips */
|
|
#define bq27510g1_dm_regs NULL
|
|
#define bq27510g2_dm_regs NULL
|
|
#define bq27510g3_dm_regs NULL
|
|
#define bq27520g1_dm_regs NULL
|
|
#define bq27520g2_dm_regs NULL
|
|
#define bq27520g3_dm_regs NULL
|
|
#define bq27520g4_dm_regs NULL
|
|
#define bq27521_dm_regs NULL
|
|
#define bq27530_dm_regs NULL
|
|
#define bq27531_dm_regs NULL
|
|
#define bq27541_dm_regs NULL
|
|
#define bq27542_dm_regs NULL
|
|
#define bq27546_dm_regs NULL
|
|
#define bq27742_dm_regs NULL
|
|
|
|
#if 0 /* not yet tested */
|
|
static struct bq27xxx_dm_reg bq27545_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 48, 23, 2, 0, 32767 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { 48, 25, 2, 0, 32767 },
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 80, 67, 2, 2800, 3700 },
|
|
};
|
|
#else
|
|
#define bq27545_dm_regs NULL
|
|
#endif
|
|
|
|
static struct bq27xxx_dm_reg bq27411_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 10, 2, 0, 32767 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 12, 2, 0, 32767 },
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 16, 2, 2800, 3700 },
|
|
};
|
|
|
|
static struct bq27xxx_dm_reg bq27421_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 10, 2, 0, 8000 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 12, 2, 0, 32767 },
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 16, 2, 2500, 3700 },
|
|
};
|
|
|
|
static struct bq27xxx_dm_reg bq27425_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 12, 2, 0, 32767 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 14, 2, 0, 32767 },
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 18, 2, 2800, 3700 },
|
|
};
|
|
|
|
static struct bq27xxx_dm_reg bq27426_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 6, 2, 0, 8000 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 8, 2, 0, 32767 },
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 10, 2, 2500, 3700 },
|
|
};
|
|
|
|
#if 0 /* not yet tested */
|
|
#define bq27441_dm_regs bq27421_dm_regs
|
|
#else
|
|
#define bq27441_dm_regs NULL
|
|
#endif
|
|
|
|
#if 0 /* not yet tested */
|
|
static struct bq27xxx_dm_reg bq27621_dm_regs[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 3, 2, 0, 8000 },
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 5, 2, 0, 32767 },
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 9, 2, 2500, 3700 },
|
|
};
|
|
#else
|
|
#define bq27621_dm_regs NULL
|
|
#endif
|
|
|
|
#define bq27z561_dm_regs NULL
|
|
#define bq28z610_dm_regs NULL
|
|
#define bq34z100_dm_regs NULL
|
|
#define bq78z100_dm_regs NULL
|
|
|
|
#define BQ27XXX_O_ZERO BIT(0)
|
|
#define BQ27XXX_O_OTDC BIT(1) /* has OTC/OTD overtemperature flags */
|
|
#define BQ27XXX_O_UTOT BIT(2) /* has OT overtemperature flag */
|
|
#define BQ27XXX_O_CFGUP BIT(3)
|
|
#define BQ27XXX_O_RAM BIT(4)
|
|
#define BQ27Z561_O_BITS BIT(5)
|
|
#define BQ27XXX_O_SOC_SI BIT(6) /* SoC is single register */
|
|
#define BQ27XXX_O_HAS_CI BIT(7) /* has Capacity Inaccurate flag */
|
|
#define BQ27XXX_O_MUL_CHEM BIT(8) /* multiple chemistries supported */
|
|
|
|
#define BQ27XXX_DATA(ref, key, opt) { \
|
|
.opts = (opt), \
|
|
.unseal_key = key, \
|
|
.regs = ref##_regs, \
|
|
.dm_regs = ref##_dm_regs, \
|
|
.props = ref##_props, \
|
|
.props_size = ARRAY_SIZE(ref##_props) }
|
|
|
|
static struct {
|
|
u32 opts;
|
|
u32 unseal_key;
|
|
u8 *regs;
|
|
struct bq27xxx_dm_reg *dm_regs;
|
|
enum power_supply_property *props;
|
|
size_t props_size;
|
|
} bq27xxx_chip_data[] = {
|
|
[BQ27000] = BQ27XXX_DATA(bq27000, 0 , BQ27XXX_O_ZERO | BQ27XXX_O_SOC_SI | BQ27XXX_O_HAS_CI),
|
|
[BQ27010] = BQ27XXX_DATA(bq27010, 0 , BQ27XXX_O_ZERO | BQ27XXX_O_SOC_SI | BQ27XXX_O_HAS_CI),
|
|
[BQ2750X] = BQ27XXX_DATA(bq2750x, 0 , BQ27XXX_O_OTDC),
|
|
[BQ2751X] = BQ27XXX_DATA(bq2751x, 0 , BQ27XXX_O_OTDC),
|
|
[BQ2752X] = BQ27XXX_DATA(bq2752x, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27500] = BQ27XXX_DATA(bq27500, 0x04143672, BQ27XXX_O_OTDC),
|
|
[BQ27510G1] = BQ27XXX_DATA(bq27510g1, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27510G2] = BQ27XXX_DATA(bq27510g2, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27510G3] = BQ27XXX_DATA(bq27510g3, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27520G1] = BQ27XXX_DATA(bq27520g1, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27520G2] = BQ27XXX_DATA(bq27520g2, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27520G3] = BQ27XXX_DATA(bq27520g3, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27520G4] = BQ27XXX_DATA(bq27520g4, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27521] = BQ27XXX_DATA(bq27521, 0 , 0),
|
|
[BQ27530] = BQ27XXX_DATA(bq27530, 0 , BQ27XXX_O_UTOT),
|
|
[BQ27531] = BQ27XXX_DATA(bq27531, 0 , BQ27XXX_O_UTOT),
|
|
[BQ27541] = BQ27XXX_DATA(bq27541, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27542] = BQ27XXX_DATA(bq27542, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27546] = BQ27XXX_DATA(bq27546, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27742] = BQ27XXX_DATA(bq27742, 0 , BQ27XXX_O_OTDC),
|
|
[BQ27545] = BQ27XXX_DATA(bq27545, 0x04143672, BQ27XXX_O_OTDC),
|
|
[BQ27411] = BQ27XXX_DATA(bq27411, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
|
|
[BQ27421] = BQ27XXX_DATA(bq27421, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
|
|
[BQ27425] = BQ27XXX_DATA(bq27425, 0x04143672, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP),
|
|
[BQ27426] = BQ27XXX_DATA(bq27426, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
|
|
[BQ27441] = BQ27XXX_DATA(bq27441, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
|
|
[BQ27621] = BQ27XXX_DATA(bq27621, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
|
|
[BQ27Z561] = BQ27XXX_DATA(bq27z561, 0 , BQ27Z561_O_BITS),
|
|
[BQ28Z610] = BQ27XXX_DATA(bq28z610, 0 , BQ27Z561_O_BITS),
|
|
[BQ34Z100] = BQ27XXX_DATA(bq34z100, 0 , BQ27XXX_O_OTDC | BQ27XXX_O_SOC_SI | \
|
|
BQ27XXX_O_HAS_CI | BQ27XXX_O_MUL_CHEM),
|
|
[BQ78Z100] = BQ27XXX_DATA(bq78z100, 0 , BQ27Z561_O_BITS),
|
|
};
|
|
|
|
static DEFINE_MUTEX(bq27xxx_list_lock);
|
|
static LIST_HEAD(bq27xxx_battery_devices);
|
|
|
|
#define BQ27XXX_MSLEEP(i) usleep_range((i)*1000, (i)*1000+500)
|
|
|
|
#define BQ27XXX_DM_SZ 32
|
|
|
|
/**
|
|
* struct bq27xxx_dm_buf - chip data memory buffer
|
|
* @class: data memory subclass_id
|
|
* @block: data memory block number
|
|
* @data: data from/for the block
|
|
* @has_data: true if data has been filled by read
|
|
* @dirty: true if data has changed since last read/write
|
|
*
|
|
* Encapsulates info required to manage chip data memory blocks.
|
|
*/
|
|
struct bq27xxx_dm_buf {
|
|
u8 class;
|
|
u8 block;
|
|
u8 data[BQ27XXX_DM_SZ];
|
|
bool has_data, dirty;
|
|
};
|
|
|
|
#define BQ27XXX_DM_BUF(di, i) { \
|
|
.class = (di)->dm_regs[i].subclass_id, \
|
|
.block = (di)->dm_regs[i].offset / BQ27XXX_DM_SZ, \
|
|
}
|
|
|
|
static inline __be16 *bq27xxx_dm_reg_ptr(struct bq27xxx_dm_buf *buf,
|
|
struct bq27xxx_dm_reg *reg)
|
|
{
|
|
if (buf->class == reg->subclass_id &&
|
|
buf->block == reg->offset / BQ27XXX_DM_SZ)
|
|
return (__be16 *) (buf->data + reg->offset % BQ27XXX_DM_SZ);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static const char * const bq27xxx_dm_reg_name[] = {
|
|
[BQ27XXX_DM_DESIGN_CAPACITY] = "design-capacity",
|
|
[BQ27XXX_DM_DESIGN_ENERGY] = "design-energy",
|
|
[BQ27XXX_DM_TERMINATE_VOLTAGE] = "terminate-voltage",
|
|
};
|
|
|
|
|
|
static bool bq27xxx_dt_to_nvm = true;
|
|
module_param_named(dt_monitored_battery_updates_nvm, bq27xxx_dt_to_nvm, bool, 0444);
|
|
MODULE_PARM_DESC(dt_monitored_battery_updates_nvm,
|
|
"Devicetree monitored-battery config updates data memory on NVM/flash chips.\n"
|
|
"Users must set this =0 when installing a different type of battery!\n"
|
|
"Default is =1."
|
|
#ifndef CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM
|
|
"\nSetting this affects future kernel updates, not the current configuration."
|
|
#endif
|
|
);
|
|
|
|
static int poll_interval_param_set(const char *val, const struct kernel_param *kp)
|
|
{
|
|
struct bq27xxx_device_info *di;
|
|
unsigned int prev_val = *(unsigned int *) kp->arg;
|
|
int ret;
|
|
|
|
ret = param_set_uint(val, kp);
|
|
if (ret < 0 || prev_val == *(unsigned int *) kp->arg)
|
|
return ret;
|
|
|
|
mutex_lock(&bq27xxx_list_lock);
|
|
list_for_each_entry(di, &bq27xxx_battery_devices, list)
|
|
mod_delayed_work(system_wq, &di->work, 0);
|
|
mutex_unlock(&bq27xxx_list_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct kernel_param_ops param_ops_poll_interval = {
|
|
.get = param_get_uint,
|
|
.set = poll_interval_param_set,
|
|
};
|
|
|
|
static unsigned int poll_interval = 360;
|
|
module_param_cb(poll_interval, ¶m_ops_poll_interval, &poll_interval, 0644);
|
|
MODULE_PARM_DESC(poll_interval,
|
|
"battery poll interval in seconds - 0 disables polling");
|
|
|
|
/*
|
|
* Common code for BQ27xxx devices
|
|
*/
|
|
|
|
static inline int bq27xxx_read(struct bq27xxx_device_info *di, int reg_index,
|
|
bool single)
|
|
{
|
|
int ret;
|
|
|
|
if (!di || di->regs[reg_index] == INVALID_REG_ADDR)
|
|
return -EINVAL;
|
|
|
|
ret = di->bus.read(di, di->regs[reg_index], single);
|
|
if (ret < 0)
|
|
dev_dbg(di->dev, "failed to read register 0x%02x (index %d)\n",
|
|
di->regs[reg_index], reg_index);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline int bq27xxx_write(struct bq27xxx_device_info *di, int reg_index,
|
|
u16 value, bool single)
|
|
{
|
|
int ret;
|
|
|
|
if (!di || di->regs[reg_index] == INVALID_REG_ADDR)
|
|
return -EINVAL;
|
|
|
|
if (!di->bus.write)
|
|
return -EPERM;
|
|
|
|
ret = di->bus.write(di, di->regs[reg_index], value, single);
|
|
if (ret < 0)
|
|
dev_dbg(di->dev, "failed to write register 0x%02x (index %d)\n",
|
|
di->regs[reg_index], reg_index);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline int bq27xxx_read_block(struct bq27xxx_device_info *di, int reg_index,
|
|
u8 *data, int len)
|
|
{
|
|
int ret;
|
|
|
|
if (!di || di->regs[reg_index] == INVALID_REG_ADDR)
|
|
return -EINVAL;
|
|
|
|
if (!di->bus.read_bulk)
|
|
return -EPERM;
|
|
|
|
ret = di->bus.read_bulk(di, di->regs[reg_index], data, len);
|
|
if (ret < 0)
|
|
dev_dbg(di->dev, "failed to read_bulk register 0x%02x (index %d)\n",
|
|
di->regs[reg_index], reg_index);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline int bq27xxx_write_block(struct bq27xxx_device_info *di, int reg_index,
|
|
u8 *data, int len)
|
|
{
|
|
int ret;
|
|
|
|
if (!di || di->regs[reg_index] == INVALID_REG_ADDR)
|
|
return -EINVAL;
|
|
|
|
if (!di->bus.write_bulk)
|
|
return -EPERM;
|
|
|
|
ret = di->bus.write_bulk(di, di->regs[reg_index], data, len);
|
|
if (ret < 0)
|
|
dev_dbg(di->dev, "failed to write_bulk register 0x%02x (index %d)\n",
|
|
di->regs[reg_index], reg_index);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int bq27xxx_battery_seal(struct bq27xxx_device_info *di)
|
|
{
|
|
int ret;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_REG_CTRL, BQ27XXX_SEALED, false);
|
|
if (ret < 0) {
|
|
dev_err(di->dev, "bus error on seal: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bq27xxx_battery_unseal(struct bq27xxx_device_info *di)
|
|
{
|
|
int ret;
|
|
|
|
if (di->unseal_key == 0) {
|
|
dev_err(di->dev, "unseal failed due to missing key\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_REG_CTRL, (u16)(di->unseal_key >> 16), false);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_REG_CTRL, (u16)di->unseal_key, false);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
return 0;
|
|
|
|
out:
|
|
dev_err(di->dev, "bus error on unseal: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
static u8 bq27xxx_battery_checksum_dm_block(struct bq27xxx_dm_buf *buf)
|
|
{
|
|
u16 sum = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < BQ27XXX_DM_SZ; i++)
|
|
sum += buf->data[i];
|
|
sum &= 0xff;
|
|
|
|
return 0xff - sum;
|
|
}
|
|
|
|
static int bq27xxx_battery_read_dm_block(struct bq27xxx_device_info *di,
|
|
struct bq27xxx_dm_buf *buf)
|
|
{
|
|
int ret;
|
|
|
|
buf->has_data = false;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_DM_CLASS, buf->class, true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_DM_BLOCK, buf->block, true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
BQ27XXX_MSLEEP(1);
|
|
|
|
ret = bq27xxx_read_block(di, BQ27XXX_DM_DATA, buf->data, BQ27XXX_DM_SZ);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = bq27xxx_read(di, BQ27XXX_DM_CKSUM, true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
if ((u8)ret != bq27xxx_battery_checksum_dm_block(buf)) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
buf->has_data = true;
|
|
buf->dirty = false;
|
|
|
|
return 0;
|
|
|
|
out:
|
|
dev_err(di->dev, "bus error reading chip memory: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
static void bq27xxx_battery_update_dm_block(struct bq27xxx_device_info *di,
|
|
struct bq27xxx_dm_buf *buf,
|
|
enum bq27xxx_dm_reg_id reg_id,
|
|
unsigned int val)
|
|
{
|
|
struct bq27xxx_dm_reg *reg = &di->dm_regs[reg_id];
|
|
const char *str = bq27xxx_dm_reg_name[reg_id];
|
|
__be16 *prev = bq27xxx_dm_reg_ptr(buf, reg);
|
|
|
|
if (prev == NULL) {
|
|
dev_warn(di->dev, "buffer does not match %s dm spec\n", str);
|
|
return;
|
|
}
|
|
|
|
if (reg->bytes != 2) {
|
|
dev_warn(di->dev, "%s dm spec has unsupported byte size\n", str);
|
|
return;
|
|
}
|
|
|
|
if (!buf->has_data)
|
|
return;
|
|
|
|
if (be16_to_cpup(prev) == val) {
|
|
dev_info(di->dev, "%s has %u\n", str, val);
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM
|
|
if (!(di->opts & BQ27XXX_O_RAM) && !bq27xxx_dt_to_nvm) {
|
|
#else
|
|
if (!(di->opts & BQ27XXX_O_RAM)) {
|
|
#endif
|
|
/* devicetree and NVM differ; defer to NVM */
|
|
dev_warn(di->dev, "%s has %u; update to %u disallowed "
|
|
#ifdef CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM
|
|
"by dt_monitored_battery_updates_nvm=0"
|
|
#else
|
|
"for flash/NVM data memory"
|
|
#endif
|
|
"\n", str, be16_to_cpup(prev), val);
|
|
return;
|
|
}
|
|
|
|
dev_info(di->dev, "update %s to %u\n", str, val);
|
|
|
|
*prev = cpu_to_be16(val);
|
|
buf->dirty = true;
|
|
}
|
|
|
|
static int bq27xxx_battery_cfgupdate_priv(struct bq27xxx_device_info *di, bool active)
|
|
{
|
|
const int limit = 100;
|
|
u16 cmd = active ? BQ27XXX_SET_CFGUPDATE : BQ27XXX_SOFT_RESET;
|
|
int ret, try = limit;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_REG_CTRL, cmd, false);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
do {
|
|
BQ27XXX_MSLEEP(25);
|
|
ret = bq27xxx_read(di, BQ27XXX_REG_FLAGS, false);
|
|
if (ret < 0)
|
|
return ret;
|
|
} while (!!(ret & BQ27XXX_FLAG_CFGUP) != active && --try);
|
|
|
|
if (!try && di->chip != BQ27425) { // 425 has a bug
|
|
dev_err(di->dev, "timed out waiting for cfgupdate flag %d\n", active);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (limit - try > 3)
|
|
dev_warn(di->dev, "cfgupdate %d, retries %d\n", active, limit - try);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int bq27xxx_battery_set_cfgupdate(struct bq27xxx_device_info *di)
|
|
{
|
|
int ret = bq27xxx_battery_cfgupdate_priv(di, true);
|
|
if (ret < 0 && ret != -EINVAL)
|
|
dev_err(di->dev, "bus error on set_cfgupdate: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline int bq27xxx_battery_soft_reset(struct bq27xxx_device_info *di)
|
|
{
|
|
int ret = bq27xxx_battery_cfgupdate_priv(di, false);
|
|
if (ret < 0 && ret != -EINVAL)
|
|
dev_err(di->dev, "bus error on soft_reset: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int bq27xxx_battery_write_dm_block(struct bq27xxx_device_info *di,
|
|
struct bq27xxx_dm_buf *buf)
|
|
{
|
|
bool cfgup = di->opts & BQ27XXX_O_CFGUP;
|
|
int ret;
|
|
|
|
if (!buf->dirty)
|
|
return 0;
|
|
|
|
if (cfgup) {
|
|
ret = bq27xxx_battery_set_cfgupdate(di);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_DM_CTRL, 0, true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_DM_CLASS, buf->class, true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_DM_BLOCK, buf->block, true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
BQ27XXX_MSLEEP(1);
|
|
|
|
ret = bq27xxx_write_block(di, BQ27XXX_DM_DATA, buf->data, BQ27XXX_DM_SZ);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = bq27xxx_write(di, BQ27XXX_DM_CKSUM,
|
|
bq27xxx_battery_checksum_dm_block(buf), true);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* DO NOT read BQ27XXX_DM_CKSUM here to verify it! That may cause NVM
|
|
* corruption on the '425 chip (and perhaps others), which can damage
|
|
* the chip.
|
|
*/
|
|
|
|
if (cfgup) {
|
|
BQ27XXX_MSLEEP(1);
|
|
ret = bq27xxx_battery_soft_reset(di);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
BQ27XXX_MSLEEP(100); /* flash DM updates in <100ms */
|
|
}
|
|
|
|
buf->dirty = false;
|
|
|
|
return 0;
|
|
|
|
out:
|
|
if (cfgup)
|
|
bq27xxx_battery_soft_reset(di);
|
|
|
|
dev_err(di->dev, "bus error writing chip memory: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
static void bq27xxx_battery_set_config(struct bq27xxx_device_info *di,
|
|
struct power_supply_battery_info *info)
|
|
{
|
|
struct bq27xxx_dm_buf bd = BQ27XXX_DM_BUF(di, BQ27XXX_DM_DESIGN_CAPACITY);
|
|
struct bq27xxx_dm_buf bt = BQ27XXX_DM_BUF(di, BQ27XXX_DM_TERMINATE_VOLTAGE);
|
|
bool updated;
|
|
|
|
if (bq27xxx_battery_unseal(di) < 0)
|
|
return;
|
|
|
|
if (info->charge_full_design_uah != -EINVAL &&
|
|
info->energy_full_design_uwh != -EINVAL) {
|
|
bq27xxx_battery_read_dm_block(di, &bd);
|
|
/* assume design energy & capacity are in same block */
|
|
bq27xxx_battery_update_dm_block(di, &bd,
|
|
BQ27XXX_DM_DESIGN_CAPACITY,
|
|
info->charge_full_design_uah / 1000);
|
|
bq27xxx_battery_update_dm_block(di, &bd,
|
|
BQ27XXX_DM_DESIGN_ENERGY,
|
|
info->energy_full_design_uwh / 1000);
|
|
}
|
|
|
|
if (info->voltage_min_design_uv != -EINVAL) {
|
|
bool same = bd.class == bt.class && bd.block == bt.block;
|
|
if (!same)
|
|
bq27xxx_battery_read_dm_block(di, &bt);
|
|
bq27xxx_battery_update_dm_block(di, same ? &bd : &bt,
|
|
BQ27XXX_DM_TERMINATE_VOLTAGE,
|
|
info->voltage_min_design_uv / 1000);
|
|
}
|
|
|
|
updated = bd.dirty || bt.dirty;
|
|
|
|
bq27xxx_battery_write_dm_block(di, &bd);
|
|
bq27xxx_battery_write_dm_block(di, &bt);
|
|
|
|
bq27xxx_battery_seal(di);
|
|
|
|
if (updated && !(di->opts & BQ27XXX_O_CFGUP)) {
|
|
bq27xxx_write(di, BQ27XXX_REG_CTRL, BQ27XXX_RESET, false);
|
|
BQ27XXX_MSLEEP(300); /* reset time is not documented */
|
|
}
|
|
/* assume bq27xxx_battery_update() is called hereafter */
|
|
}
|
|
|
|
static void bq27xxx_battery_settings(struct bq27xxx_device_info *di)
|
|
{
|
|
struct power_supply_battery_info *info;
|
|
unsigned int min, max;
|
|
|
|
if (power_supply_get_battery_info(di->bat, &info) < 0)
|
|
return;
|
|
|
|
if (!di->dm_regs) {
|
|
dev_warn(di->dev, "data memory update not supported for chip\n");
|
|
return;
|
|
}
|
|
|
|
if (info->energy_full_design_uwh != info->charge_full_design_uah) {
|
|
if (info->energy_full_design_uwh == -EINVAL)
|
|
dev_warn(di->dev, "missing battery:energy-full-design-microwatt-hours\n");
|
|
else if (info->charge_full_design_uah == -EINVAL)
|
|
dev_warn(di->dev, "missing battery:charge-full-design-microamp-hours\n");
|
|
}
|
|
|
|
/* assume min == 0 */
|
|
max = di->dm_regs[BQ27XXX_DM_DESIGN_ENERGY].max;
|
|
if (info->energy_full_design_uwh > max * 1000) {
|
|
dev_err(di->dev, "invalid battery:energy-full-design-microwatt-hours %d\n",
|
|
info->energy_full_design_uwh);
|
|
info->energy_full_design_uwh = -EINVAL;
|
|
}
|
|
|
|
/* assume min == 0 */
|
|
max = di->dm_regs[BQ27XXX_DM_DESIGN_CAPACITY].max;
|
|
if (info->charge_full_design_uah > max * 1000) {
|
|
dev_err(di->dev, "invalid battery:charge-full-design-microamp-hours %d\n",
|
|
info->charge_full_design_uah);
|
|
info->charge_full_design_uah = -EINVAL;
|
|
}
|
|
|
|
min = di->dm_regs[BQ27XXX_DM_TERMINATE_VOLTAGE].min;
|
|
max = di->dm_regs[BQ27XXX_DM_TERMINATE_VOLTAGE].max;
|
|
if ((info->voltage_min_design_uv < min * 1000 ||
|
|
info->voltage_min_design_uv > max * 1000) &&
|
|
info->voltage_min_design_uv != -EINVAL) {
|
|
dev_err(di->dev, "invalid battery:voltage-min-design-microvolt %d\n",
|
|
info->voltage_min_design_uv);
|
|
info->voltage_min_design_uv = -EINVAL;
|
|
}
|
|
|
|
if ((info->energy_full_design_uwh != -EINVAL &&
|
|
info->charge_full_design_uah != -EINVAL) ||
|
|
info->voltage_min_design_uv != -EINVAL)
|
|
bq27xxx_battery_set_config(di, info);
|
|
}
|
|
|
|
/*
|
|
* Return the battery State-of-Charge
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di)
|
|
{
|
|
int soc;
|
|
|
|
if (di->opts & BQ27XXX_O_SOC_SI)
|
|
soc = bq27xxx_read(di, BQ27XXX_REG_SOC, true);
|
|
else
|
|
soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false);
|
|
|
|
if (soc < 0)
|
|
dev_dbg(di->dev, "error reading State-of-Charge\n");
|
|
|
|
return soc;
|
|
}
|
|
|
|
/*
|
|
* Return a battery charge value in µAh
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg)
|
|
{
|
|
int charge;
|
|
|
|
charge = bq27xxx_read(di, reg, false);
|
|
if (charge < 0) {
|
|
dev_dbg(di->dev, "error reading charge register %02x: %d\n",
|
|
reg, charge);
|
|
return charge;
|
|
}
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
charge *= BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
|
|
else
|
|
charge *= 1000;
|
|
|
|
return charge;
|
|
}
|
|
|
|
/*
|
|
* Return the battery Nominal available capacity in µAh
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di)
|
|
{
|
|
return bq27xxx_battery_read_charge(di, BQ27XXX_REG_NAC);
|
|
}
|
|
|
|
/*
|
|
* Return the battery Remaining Capacity in µAh
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static inline int bq27xxx_battery_read_rc(struct bq27xxx_device_info *di)
|
|
{
|
|
return bq27xxx_battery_read_charge(di, BQ27XXX_REG_RC);
|
|
}
|
|
|
|
/*
|
|
* Return the battery Full Charge Capacity in µAh
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static inline int bq27xxx_battery_read_fcc(struct bq27xxx_device_info *di)
|
|
{
|
|
return bq27xxx_battery_read_charge(di, BQ27XXX_REG_FCC);
|
|
}
|
|
|
|
/*
|
|
* Return the Design Capacity in µAh
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)
|
|
{
|
|
int dcap;
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, true);
|
|
else
|
|
dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false);
|
|
|
|
if (dcap < 0) {
|
|
dev_dbg(di->dev, "error reading initial last measured discharge\n");
|
|
return dcap;
|
|
}
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
dcap = (dcap << 8) * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
|
|
else
|
|
dcap *= 1000;
|
|
|
|
return dcap;
|
|
}
|
|
|
|
/*
|
|
* Return the battery Available energy in µWh
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_energy(struct bq27xxx_device_info *di)
|
|
{
|
|
int ae;
|
|
|
|
ae = bq27xxx_read(di, BQ27XXX_REG_AE, false);
|
|
if (ae < 0) {
|
|
dev_dbg(di->dev, "error reading available energy\n");
|
|
return ae;
|
|
}
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
ae *= BQ27XXX_POWER_CONSTANT / BQ27XXX_RS;
|
|
else
|
|
ae *= 1000;
|
|
|
|
return ae;
|
|
}
|
|
|
|
/*
|
|
* Return the battery temperature in tenths of degree Kelvin
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_temperature(struct bq27xxx_device_info *di)
|
|
{
|
|
int temp;
|
|
|
|
temp = bq27xxx_read(di, BQ27XXX_REG_TEMP, false);
|
|
if (temp < 0) {
|
|
dev_err(di->dev, "error reading temperature\n");
|
|
return temp;
|
|
}
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
temp = 5 * temp / 2;
|
|
|
|
return temp;
|
|
}
|
|
|
|
/*
|
|
* Return the battery Cycle count total
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_cyct(struct bq27xxx_device_info *di)
|
|
{
|
|
int cyct;
|
|
|
|
cyct = bq27xxx_read(di, BQ27XXX_REG_CYCT, false);
|
|
if (cyct < 0)
|
|
dev_err(di->dev, "error reading cycle count total\n");
|
|
|
|
return cyct;
|
|
}
|
|
|
|
/*
|
|
* Read a time register.
|
|
* Return < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_read_time(struct bq27xxx_device_info *di, u8 reg)
|
|
{
|
|
int tval;
|
|
|
|
tval = bq27xxx_read(di, reg, false);
|
|
if (tval < 0) {
|
|
dev_dbg(di->dev, "error reading time register %02x: %d\n",
|
|
reg, tval);
|
|
return tval;
|
|
}
|
|
|
|
if (tval == 65535)
|
|
return -ENODATA;
|
|
|
|
return tval * 60;
|
|
}
|
|
|
|
/*
|
|
* Returns true if a battery over temperature condition is detected
|
|
*/
|
|
static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)
|
|
{
|
|
if (di->opts & BQ27XXX_O_OTDC)
|
|
return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD);
|
|
if (di->opts & BQ27XXX_O_UTOT)
|
|
return flags & BQ27XXX_FLAG_OT;
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns true if a battery under temperature condition is detected
|
|
*/
|
|
static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags)
|
|
{
|
|
if (di->opts & BQ27XXX_O_UTOT)
|
|
return flags & BQ27XXX_FLAG_UT;
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns true if a low state of charge condition is detected
|
|
*/
|
|
static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags)
|
|
{
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
return flags & (BQ27000_FLAG_EDV1 | BQ27000_FLAG_EDVF);
|
|
else if (di->opts & BQ27Z561_O_BITS)
|
|
return flags & BQ27Z561_FLAG_FDC;
|
|
else
|
|
return flags & (BQ27XXX_FLAG_SOC1 | BQ27XXX_FLAG_SOCF);
|
|
}
|
|
|
|
/*
|
|
* Returns true if reported battery capacity is inaccurate
|
|
*/
|
|
static bool bq27xxx_battery_capacity_inaccurate(struct bq27xxx_device_info *di,
|
|
u16 flags)
|
|
{
|
|
if (di->opts & BQ27XXX_O_HAS_CI)
|
|
return (flags & BQ27000_FLAG_CI);
|
|
else
|
|
return false;
|
|
}
|
|
|
|
static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
|
|
{
|
|
/* Unlikely but important to return first */
|
|
if (unlikely(bq27xxx_battery_overtemp(di, di->cache.flags)))
|
|
return POWER_SUPPLY_HEALTH_OVERHEAT;
|
|
if (unlikely(bq27xxx_battery_undertemp(di, di->cache.flags)))
|
|
return POWER_SUPPLY_HEALTH_COLD;
|
|
if (unlikely(bq27xxx_battery_dead(di, di->cache.flags)))
|
|
return POWER_SUPPLY_HEALTH_DEAD;
|
|
if (unlikely(bq27xxx_battery_capacity_inaccurate(di, di->cache.flags)))
|
|
return POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED;
|
|
|
|
return POWER_SUPPLY_HEALTH_GOOD;
|
|
}
|
|
|
|
static bool bq27xxx_battery_is_full(struct bq27xxx_device_info *di, int flags)
|
|
{
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
return (flags & BQ27000_FLAG_FC);
|
|
else if (di->opts & BQ27Z561_O_BITS)
|
|
return (flags & BQ27Z561_FLAG_FC);
|
|
else
|
|
return (flags & BQ27XXX_FLAG_FC);
|
|
}
|
|
|
|
/*
|
|
* Return the battery average current in µA and the status
|
|
* Note that current can be negative signed as well
|
|
* Or 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_current_and_status(
|
|
struct bq27xxx_device_info *di,
|
|
union power_supply_propval *val_curr,
|
|
union power_supply_propval *val_status,
|
|
struct bq27xxx_reg_cache *cache)
|
|
{
|
|
bool single_flags = (di->opts & BQ27XXX_O_ZERO);
|
|
int curr;
|
|
int flags;
|
|
|
|
curr = bq27xxx_read(di, BQ27XXX_REG_AI, false);
|
|
if (curr < 0) {
|
|
dev_err(di->dev, "error reading current\n");
|
|
return curr;
|
|
}
|
|
|
|
if (cache) {
|
|
flags = cache->flags;
|
|
} else {
|
|
flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, single_flags);
|
|
if (flags < 0) {
|
|
dev_err(di->dev, "error reading flags\n");
|
|
return flags;
|
|
}
|
|
}
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO) {
|
|
if (!(flags & BQ27000_FLAG_CHGS)) {
|
|
dev_dbg(di->dev, "negative current!\n");
|
|
curr = -curr;
|
|
}
|
|
|
|
curr = curr * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
|
|
} else {
|
|
/* Other gauges return signed value */
|
|
curr = (int)((s16)curr) * 1000;
|
|
}
|
|
|
|
if (val_curr)
|
|
val_curr->intval = curr;
|
|
|
|
if (val_status) {
|
|
if (curr > 0) {
|
|
val_status->intval = POWER_SUPPLY_STATUS_CHARGING;
|
|
} else if (curr < 0) {
|
|
val_status->intval = POWER_SUPPLY_STATUS_DISCHARGING;
|
|
} else {
|
|
if (bq27xxx_battery_is_full(di, flags))
|
|
val_status->intval = POWER_SUPPLY_STATUS_FULL;
|
|
else
|
|
val_status->intval =
|
|
POWER_SUPPLY_STATUS_NOT_CHARGING;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void bq27xxx_battery_update_unlocked(struct bq27xxx_device_info *di)
|
|
{
|
|
union power_supply_propval status = di->last_status;
|
|
struct bq27xxx_reg_cache cache = {0, };
|
|
bool has_singe_flag = di->opts & BQ27XXX_O_ZERO;
|
|
|
|
cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);
|
|
if ((cache.flags & 0xff) == 0xff)
|
|
cache.flags = -1; /* read error */
|
|
if (cache.flags >= 0) {
|
|
cache.temperature = bq27xxx_battery_read_temperature(di);
|
|
if (di->regs[BQ27XXX_REG_TTE] != INVALID_REG_ADDR)
|
|
cache.time_to_empty = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTE);
|
|
if (di->regs[BQ27XXX_REG_TTECP] != INVALID_REG_ADDR)
|
|
cache.time_to_empty_avg = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTECP);
|
|
if (di->regs[BQ27XXX_REG_TTF] != INVALID_REG_ADDR)
|
|
cache.time_to_full = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTF);
|
|
|
|
cache.charge_full = bq27xxx_battery_read_fcc(di);
|
|
cache.capacity = bq27xxx_battery_read_soc(di);
|
|
if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR)
|
|
cache.energy = bq27xxx_battery_read_energy(di);
|
|
di->cache.flags = cache.flags;
|
|
cache.health = bq27xxx_battery_read_health(di);
|
|
if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR)
|
|
cache.cycle_count = bq27xxx_battery_read_cyct(di);
|
|
|
|
/*
|
|
* On gauges with signed current reporting the current must be
|
|
* checked to detect charging <-> discharging status changes.
|
|
*/
|
|
if (!(di->opts & BQ27XXX_O_ZERO))
|
|
bq27xxx_battery_current_and_status(di, NULL, &status, &cache);
|
|
|
|
/* We only have to read charge design full once */
|
|
if (di->charge_design_full <= 0)
|
|
di->charge_design_full = bq27xxx_battery_read_dcap(di);
|
|
}
|
|
|
|
if ((di->cache.capacity != cache.capacity) ||
|
|
(di->cache.flags != cache.flags) ||
|
|
(di->last_status.intval != status.intval)) {
|
|
di->last_status.intval = status.intval;
|
|
power_supply_changed(di->bat);
|
|
}
|
|
|
|
if (memcmp(&di->cache, &cache, sizeof(cache)) != 0)
|
|
di->cache = cache;
|
|
|
|
di->last_update = jiffies;
|
|
|
|
if (!di->removed && poll_interval > 0)
|
|
mod_delayed_work(system_wq, &di->work, poll_interval * HZ);
|
|
}
|
|
|
|
void bq27xxx_battery_update(struct bq27xxx_device_info *di)
|
|
{
|
|
mutex_lock(&di->lock);
|
|
bq27xxx_battery_update_unlocked(di);
|
|
mutex_unlock(&di->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bq27xxx_battery_update);
|
|
|
|
static void bq27xxx_battery_poll(struct work_struct *work)
|
|
{
|
|
struct bq27xxx_device_info *di =
|
|
container_of(work, struct bq27xxx_device_info,
|
|
work.work);
|
|
|
|
bq27xxx_battery_update(di);
|
|
}
|
|
|
|
/*
|
|
* Get the average power in µW
|
|
* Return < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_pwr_avg(struct bq27xxx_device_info *di,
|
|
union power_supply_propval *val)
|
|
{
|
|
int power;
|
|
|
|
power = bq27xxx_read(di, BQ27XXX_REG_AP, false);
|
|
if (power < 0) {
|
|
dev_err(di->dev,
|
|
"error reading average power register %02x: %d\n",
|
|
BQ27XXX_REG_AP, power);
|
|
return power;
|
|
}
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO)
|
|
val->intval = (power * BQ27XXX_POWER_CONSTANT) / BQ27XXX_RS;
|
|
else
|
|
/* Other gauges return a signed value in units of 10mW */
|
|
val->intval = (int)((s16)power) * 10000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,
|
|
union power_supply_propval *val)
|
|
{
|
|
int level;
|
|
|
|
if (di->opts & BQ27XXX_O_ZERO) {
|
|
if (di->cache.flags & BQ27000_FLAG_FC)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
|
|
else if (di->cache.flags & BQ27000_FLAG_EDVF)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
|
|
else if (di->cache.flags & BQ27000_FLAG_EDV1)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
|
|
else
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
|
|
} else if (di->opts & BQ27Z561_O_BITS) {
|
|
if (di->cache.flags & BQ27Z561_FLAG_FC)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
|
|
else if (di->cache.flags & BQ27Z561_FLAG_FDC)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
|
|
else
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
|
|
} else {
|
|
if (di->cache.flags & BQ27XXX_FLAG_FC)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
|
|
else if (di->cache.flags & BQ27XXX_FLAG_SOCF)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
|
|
else if (di->cache.flags & BQ27XXX_FLAG_SOC1)
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
|
|
else
|
|
level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
|
|
}
|
|
|
|
val->intval = level;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Return the battery Voltage in millivolts
|
|
* Or < 0 if something fails.
|
|
*/
|
|
static int bq27xxx_battery_voltage(struct bq27xxx_device_info *di,
|
|
union power_supply_propval *val)
|
|
{
|
|
int volt;
|
|
|
|
volt = bq27xxx_read(di, BQ27XXX_REG_VOLT, false);
|
|
if (volt < 0) {
|
|
dev_err(di->dev, "error reading voltage\n");
|
|
return volt;
|
|
}
|
|
|
|
val->intval = volt * 1000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bq27xxx_simple_value(int value,
|
|
union power_supply_propval *val)
|
|
{
|
|
if (value < 0)
|
|
return value;
|
|
|
|
val->intval = value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bq27xxx_battery_get_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
int ret = 0;
|
|
struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);
|
|
|
|
mutex_lock(&di->lock);
|
|
if (time_is_before_jiffies(di->last_update + 5 * HZ))
|
|
bq27xxx_battery_update_unlocked(di);
|
|
mutex_unlock(&di->lock);
|
|
|
|
if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0)
|
|
return -ENODEV;
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_STATUS:
|
|
ret = bq27xxx_battery_current_and_status(di, NULL, val, NULL);
|
|
break;
|
|
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
|
|
ret = bq27xxx_battery_voltage(di, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_PRESENT:
|
|
val->intval = di->cache.flags < 0 ? 0 : 1;
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
|
ret = bq27xxx_battery_current_and_status(di, val, NULL, NULL);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CAPACITY:
|
|
ret = bq27xxx_simple_value(di->cache.capacity, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
|
|
ret = bq27xxx_battery_capacity_level(di, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_TEMP:
|
|
ret = bq27xxx_simple_value(di->cache.temperature, val);
|
|
if (ret == 0)
|
|
val->intval -= 2731; /* convert decidegree k to c */
|
|
break;
|
|
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
|
|
ret = bq27xxx_simple_value(di->cache.time_to_empty, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
|
|
ret = bq27xxx_simple_value(di->cache.time_to_empty_avg, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
|
|
ret = bq27xxx_simple_value(di->cache.time_to_full, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_TECHNOLOGY:
|
|
if (di->opts & BQ27XXX_O_MUL_CHEM)
|
|
val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
|
|
else
|
|
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_NOW:
|
|
if (di->regs[BQ27XXX_REG_NAC] != INVALID_REG_ADDR)
|
|
ret = bq27xxx_simple_value(bq27xxx_battery_read_nac(di), val);
|
|
else
|
|
ret = bq27xxx_simple_value(bq27xxx_battery_read_rc(di), val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_FULL:
|
|
ret = bq27xxx_simple_value(di->cache.charge_full, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
|
|
ret = bq27xxx_simple_value(di->charge_design_full, val);
|
|
break;
|
|
/*
|
|
* TODO: Implement these to make registers set from
|
|
* power_supply_battery_info visible in sysfs.
|
|
*/
|
|
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
|
|
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
|
|
return -EINVAL;
|
|
case POWER_SUPPLY_PROP_CYCLE_COUNT:
|
|
ret = bq27xxx_simple_value(di->cache.cycle_count, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_ENERGY_NOW:
|
|
ret = bq27xxx_simple_value(di->cache.energy, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_POWER_AVG:
|
|
ret = bq27xxx_battery_pwr_avg(di, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_HEALTH:
|
|
ret = bq27xxx_simple_value(di->cache.health, val);
|
|
break;
|
|
case POWER_SUPPLY_PROP_MANUFACTURER:
|
|
val->strval = BQ27XXX_MANUFACTURER;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void bq27xxx_external_power_changed(struct power_supply *psy)
|
|
{
|
|
struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);
|
|
|
|
/* After charger plug in/out wait 0.5s for things to stabilize */
|
|
mod_delayed_work(system_wq, &di->work, HZ / 2);
|
|
}
|
|
|
|
int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
|
|
{
|
|
struct power_supply_desc *psy_desc;
|
|
struct power_supply_config psy_cfg = {
|
|
.of_node = di->dev->of_node,
|
|
.drv_data = di,
|
|
};
|
|
|
|
INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll);
|
|
mutex_init(&di->lock);
|
|
|
|
di->regs = bq27xxx_chip_data[di->chip].regs;
|
|
di->unseal_key = bq27xxx_chip_data[di->chip].unseal_key;
|
|
di->dm_regs = bq27xxx_chip_data[di->chip].dm_regs;
|
|
di->opts = bq27xxx_chip_data[di->chip].opts;
|
|
|
|
psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);
|
|
if (!psy_desc)
|
|
return -ENOMEM;
|
|
|
|
psy_desc->name = di->name;
|
|
psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
|
|
psy_desc->properties = bq27xxx_chip_data[di->chip].props;
|
|
psy_desc->num_properties = bq27xxx_chip_data[di->chip].props_size;
|
|
psy_desc->get_property = bq27xxx_battery_get_property;
|
|
psy_desc->external_power_changed = bq27xxx_external_power_changed;
|
|
|
|
di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);
|
|
if (IS_ERR(di->bat))
|
|
return dev_err_probe(di->dev, PTR_ERR(di->bat),
|
|
"failed to register battery\n");
|
|
|
|
bq27xxx_battery_settings(di);
|
|
bq27xxx_battery_update(di);
|
|
|
|
mutex_lock(&bq27xxx_list_lock);
|
|
list_add(&di->list, &bq27xxx_battery_devices);
|
|
mutex_unlock(&bq27xxx_list_lock);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(bq27xxx_battery_setup);
|
|
|
|
void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
|
|
{
|
|
mutex_lock(&bq27xxx_list_lock);
|
|
list_del(&di->list);
|
|
mutex_unlock(&bq27xxx_list_lock);
|
|
|
|
/* Set removed to avoid bq27xxx_battery_update() re-queuing the work */
|
|
mutex_lock(&di->lock);
|
|
di->removed = true;
|
|
mutex_unlock(&di->lock);
|
|
|
|
cancel_delayed_work_sync(&di->work);
|
|
|
|
power_supply_unregister(di->bat);
|
|
mutex_destroy(&di->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int bq27xxx_battery_suspend(struct device *dev)
|
|
{
|
|
struct bq27xxx_device_info *di = dev_get_drvdata(dev);
|
|
|
|
cancel_delayed_work(&di->work);
|
|
return 0;
|
|
}
|
|
|
|
static int bq27xxx_battery_resume(struct device *dev)
|
|
{
|
|
struct bq27xxx_device_info *di = dev_get_drvdata(dev);
|
|
|
|
schedule_delayed_work(&di->work, 0);
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PM_SLEEP */
|
|
|
|
SIMPLE_DEV_PM_OPS(bq27xxx_battery_battery_pm_ops,
|
|
bq27xxx_battery_suspend, bq27xxx_battery_resume);
|
|
EXPORT_SYMBOL_GPL(bq27xxx_battery_battery_pm_ops);
|
|
|
|
MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
|
|
MODULE_DESCRIPTION("BQ27xxx battery monitor driver");
|
|
MODULE_LICENSE("GPL");
|