428 lines
13 KiB
C
428 lines
13 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _AB8500_CHARGER_H_
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#define _AB8500_CHARGER_H_
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#include <linux/kernel.h>
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/*
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* System control 2 register offsets.
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* bank = 0x02
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*/
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#define AB8500_MAIN_WDOG_CTRL_REG 0x01
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#define AB8500_LOW_BAT_REG 0x03
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#define AB8500_BATT_OK_REG 0x04
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/*
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* USB/ULPI register offsets
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* Bank : 0x5
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*/
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#define AB8500_USB_LINE_STAT_REG 0x80
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#define AB8500_USB_LINE_CTRL2_REG 0x82
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#define AB8500_USB_LINK1_STAT_REG 0x94
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/*
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* Charger / status register offfsets
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* Bank : 0x0B
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*/
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#define AB8500_CH_STATUS1_REG 0x00
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#define AB8500_CH_STATUS2_REG 0x01
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#define AB8500_CH_USBCH_STAT1_REG 0x02
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#define AB8500_CH_USBCH_STAT2_REG 0x03
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#define AB8540_CH_USBCH_STAT3_REG 0x04
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#define AB8500_CH_STAT_REG 0x05
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/*
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* Charger / control register offfsets
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* Bank : 0x0B
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*/
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#define AB8500_CH_VOLT_LVL_REG 0x40
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#define AB8500_CH_VOLT_LVL_MAX_REG 0x41 /*Only in Cut2.0*/
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#define AB8500_CH_OPT_CRNTLVL_REG 0x42
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#define AB8500_CH_OPT_CRNTLVL_MAX_REG 0x43 /*Only in Cut2.0*/
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#define AB8500_CH_WD_TIMER_REG 0x50
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#define AB8500_CHARG_WD_CTRL 0x51
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#define AB8500_BTEMP_HIGH_TH 0x52
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#define AB8500_LED_INDICATOR_PWM_CTRL 0x53
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#define AB8500_LED_INDICATOR_PWM_DUTY 0x54
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#define AB8500_BATT_OVV 0x55
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#define AB8500_CHARGER_CTRL 0x56
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#define AB8500_BAT_CTRL_CURRENT_SOURCE 0x60 /*Only in Cut2.0*/
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/*
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* Charger / main control register offsets
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* Bank : 0x0B
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*/
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#define AB8500_MCH_CTRL1 0x80
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#define AB8500_MCH_CTRL2 0x81
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#define AB8500_MCH_IPT_CURLVL_REG 0x82
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#define AB8500_CH_WD_REG 0x83
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/*
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* Charger / USB control register offsets
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* Bank : 0x0B
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*/
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#define AB8500_USBCH_CTRL1_REG 0xC0
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#define AB8500_USBCH_CTRL2_REG 0xC1
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#define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2
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#define AB8540_USB_PP_MODE_REG 0xC5
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#define AB8540_USB_PP_CHR_REG 0xC6
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/*
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* Gas Gauge register offsets
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* Bank : 0x0C
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*/
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#define AB8500_GASG_CC_CTRL_REG 0x00
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#define AB8500_GASG_CC_ACCU1_REG 0x01
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#define AB8500_GASG_CC_ACCU2_REG 0x02
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#define AB8500_GASG_CC_ACCU3_REG 0x03
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#define AB8500_GASG_CC_ACCU4_REG 0x04
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#define AB8500_GASG_CC_SMPL_CNTRL_REG 0x05
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#define AB8500_GASG_CC_SMPL_CNTRH_REG 0x06
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#define AB8500_GASG_CC_SMPL_CNVL_REG 0x07
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#define AB8500_GASG_CC_SMPL_CNVH_REG 0x08
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#define AB8500_GASG_CC_CNTR_AVGOFF_REG 0x09
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#define AB8500_GASG_CC_OFFSET_REG 0x0A
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#define AB8500_GASG_CC_NCOV_ACCU 0x10
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#define AB8500_GASG_CC_NCOV_ACCU_CTRL 0x11
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#define AB8500_GASG_CC_NCOV_ACCU_LOW 0x12
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#define AB8500_GASG_CC_NCOV_ACCU_MED 0x13
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#define AB8500_GASG_CC_NCOV_ACCU_HIGH 0x14
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/*
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* Interrupt register offsets
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* Bank : 0x0E
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*/
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#define AB8500_IT_SOURCE2_REG 0x01
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#define AB8500_IT_SOURCE21_REG 0x14
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/*
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* RTC register offsets
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* Bank: 0x0F
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*/
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#define AB8500_RTC_BACKUP_CHG_REG 0x0C
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#define AB8500_RTC_CC_CONF_REG 0x01
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#define AB8500_RTC_CTRL_REG 0x0B
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#define AB8500_RTC_CTRL1_REG 0x11
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/*
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* OTP register offsets
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* Bank : 0x15
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*/
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#define AB8500_OTP_CONF_15 0x0E
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/* GPADC constants from AB8500 spec, UM0836 */
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#define ADC_RESOLUTION 1024
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#define ADC_CH_MAIN_MIN 0
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#define ADC_CH_MAIN_MAX 20030
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#define ADC_CH_VBUS_MIN 0
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#define ADC_CH_VBUS_MAX 20030
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#define ADC_CH_VBAT_MIN 2300
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#define ADC_CH_VBAT_MAX 4800
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#define ADC_CH_BKBAT_MIN 0
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#define ADC_CH_BKBAT_MAX 3200
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/* Main charge i/p current */
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#define MAIN_CH_IP_CUR_0P9A 0x80
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#define MAIN_CH_IP_CUR_1P0A 0x90
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#define MAIN_CH_IP_CUR_1P1A 0xA0
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#define MAIN_CH_IP_CUR_1P2A 0xB0
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#define MAIN_CH_IP_CUR_1P3A 0xC0
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#define MAIN_CH_IP_CUR_1P4A 0xD0
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#define MAIN_CH_IP_CUR_1P5A 0xE0
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/* ChVoltLevel */
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#define CH_VOL_LVL_3P5 0x00
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#define CH_VOL_LVL_4P0 0x14
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#define CH_VOL_LVL_4P05 0x16
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#define CH_VOL_LVL_4P1 0x1B
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#define CH_VOL_LVL_4P15 0x20
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#define CH_VOL_LVL_4P2 0x25
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#define CH_VOL_LVL_4P6 0x4D
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/* ChOutputCurrentLevel */
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#define CH_OP_CUR_LVL_0P1 0x00
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#define CH_OP_CUR_LVL_0P2 0x01
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#define CH_OP_CUR_LVL_0P3 0x02
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#define CH_OP_CUR_LVL_0P4 0x03
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#define CH_OP_CUR_LVL_0P5 0x04
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#define CH_OP_CUR_LVL_0P6 0x05
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#define CH_OP_CUR_LVL_0P7 0x06
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#define CH_OP_CUR_LVL_0P8 0x07
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#define CH_OP_CUR_LVL_0P9 0x08
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#define CH_OP_CUR_LVL_1P4 0x0D
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#define CH_OP_CUR_LVL_1P5 0x0E
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#define CH_OP_CUR_LVL_1P6 0x0F
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#define CH_OP_CUR_LVL_2P 0x3F
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/* BTEMP High thermal limits */
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#define BTEMP_HIGH_TH_57_0 0x00
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#define BTEMP_HIGH_TH_52 0x01
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#define BTEMP_HIGH_TH_57_1 0x02
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#define BTEMP_HIGH_TH_62 0x03
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#define LOW_BAT_3P1V 0x20
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#define LOW_BAT_2P3V 0x00
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#define LOW_BAT_RESET 0x01
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#define LOW_BAT_ENABLE 0x01
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/* Backup battery constants */
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#define BUP_ICH_SEL_50UA 0x00
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#define BUP_ICH_SEL_150UA 0x04
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#define BUP_ICH_SEL_300UA 0x08
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#define BUP_ICH_SEL_700UA 0x0C
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enum bup_vch_sel {
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BUP_VCH_SEL_2P5V,
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BUP_VCH_SEL_2P6V,
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BUP_VCH_SEL_2P8V,
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BUP_VCH_SEL_3P1V,
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/*
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* Note that the following 5 values 2.7v, 2.9v, 3.0v, 3.2v, 3.3v
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* are only available on ab8540. You can't choose these 5
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* voltage on ab8500/ab8505/ab9540.
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*/
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BUP_VCH_SEL_2P7V,
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BUP_VCH_SEL_2P9V,
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BUP_VCH_SEL_3P0V,
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BUP_VCH_SEL_3P2V,
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BUP_VCH_SEL_3P3V,
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};
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#define BUP_VCH_RANGE 0x02
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#define VBUP33_VRTCN 0x01
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/* Battery OVV constants */
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#define BATT_OVV_ENA 0x02
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#define BATT_OVV_TH_3P7 0x00
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#define BATT_OVV_TH_4P75 0x01
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/* A value to indicate over voltage (microvolts) */
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#define BATT_OVV_VALUE 4750000
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/* VBUS OVV constants */
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#define VBUS_OVV_SELECT_MASK 0x78
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#define VBUS_OVV_SELECT_5P6V 0x00
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#define VBUS_OVV_SELECT_5P7V 0x08
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#define VBUS_OVV_SELECT_5P8V 0x10
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#define VBUS_OVV_SELECT_5P9V 0x18
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#define VBUS_OVV_SELECT_6P0V 0x20
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#define VBUS_OVV_SELECT_6P1V 0x28
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#define VBUS_OVV_SELECT_6P2V 0x30
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#define VBUS_OVV_SELECT_6P3V 0x38
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#define VBUS_AUTO_IN_CURR_LIM_ENA 0x04
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/* Fuel Gauge constants */
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#define RESET_ACCU 0x02
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#define READ_REQ 0x01
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#define CC_DEEP_SLEEP_ENA 0x02
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#define CC_PWR_UP_ENA 0x01
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#define CC_SAMPLES_40 0x28
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#define RD_NCONV_ACCU_REQ 0x01
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#define CC_CALIB 0x08
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#define CC_INTAVGOFFSET_ENA 0x10
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#define CC_MUXOFFSET 0x80
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#define CC_INT_CAL_N_AVG_MASK 0x60
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#define CC_INT_CAL_SAMPLES_16 0x40
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#define CC_INT_CAL_SAMPLES_8 0x20
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#define CC_INT_CAL_SAMPLES_4 0x00
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/* RTC constants */
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#define RTC_BUP_CH_ENA 0x10
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/* BatCtrl Current Source Constants */
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#define BAT_CTRL_7U_ENA 0x01
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#define BAT_CTRL_20U_ENA 0x02
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#define BAT_CTRL_18U_ENA 0x01
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#define BAT_CTRL_16U_ENA 0x02
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#define BAT_CTRL_CMP_ENA 0x04
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#define FORCE_BAT_CTRL_CMP_HIGH 0x08
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#define BAT_CTRL_PULL_UP_ENA 0x10
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/* Battery type */
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#define BATTERY_UNKNOWN 00
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/* Registers for pcut feature in ab8505 and ab9540 */
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#define AB8505_RTC_PCUT_CTL_STATUS_REG 0x12
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#define AB8505_RTC_PCUT_TIME_REG 0x13
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#define AB8505_RTC_PCUT_MAX_TIME_REG 0x14
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#define AB8505_RTC_PCUT_FLAG_TIME_REG 0x15
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#define AB8505_RTC_PCUT_RESTART_REG 0x16
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#define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17
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/* USB Power Path constants for ab8540 */
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#define BUS_VSYS_VOL_SELECT_MASK 0x06
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#define BUS_VSYS_VOL_SELECT_3P6V 0x00
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#define BUS_VSYS_VOL_SELECT_3P325V 0x02
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#define BUS_VSYS_VOL_SELECT_3P9V 0x04
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#define BUS_VSYS_VOL_SELECT_4P3V 0x06
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#define BUS_POWER_PATH_MODE_ENA 0x01
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#define BUS_PP_PRECHG_CURRENT_MASK 0x0E
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#define BUS_POWER_PATH_PRECHG_ENA 0x01
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/* Forward declaration */
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struct ab8500_fg;
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/**
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* struct ab8500_fg_parameters - Fuel gauge algorithm parameters, in seconds
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* if not specified
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* @recovery_sleep_timer: Time between measurements while recovering
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* @recovery_total_time: Total recovery time
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* @init_timer: Measurement interval during startup
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* @init_discard_time: Time we discard voltage measurement at startup
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* @init_total_time: Total init time during startup
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* @high_curr_time: Time current has to be high to go to recovery
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* @accu_charging: FG accumulation time while charging
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* @accu_high_curr_ua: FG accumulation time in high current mode
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* @high_curr_threshold_ua: High current threshold, in uA
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* @lowbat_threshold_uv: Low battery threshold, in uV
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* @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
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* Resolution in 50 mV step.
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* @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
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* Resolution in 50 mV step.
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* @user_cap_limit Capacity reported from user must be within this
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* limit to be considered as sane, in percentage
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* points.
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* @maint_thres This is the threshold where we stop reporting
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* battery full while in maintenance, in per cent
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* @pcut_enable: Enable power cut feature in ab8505
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* @pcut_max_time: Max time threshold
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* @pcut_flag_time: Flagtime threshold
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* @pcut_max_restart: Max number of restarts
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* @pcut_debounce_time: Sets battery debounce time
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*/
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struct ab8500_fg_parameters {
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int recovery_sleep_timer;
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int recovery_total_time;
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int init_timer;
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int init_discard_time;
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int init_total_time;
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int high_curr_time;
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int accu_charging;
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int accu_high_curr;
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int high_curr_threshold_ua;
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int lowbat_threshold_uv;
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int battok_falling_th_sel0;
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int battok_raising_th_sel1;
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int user_cap_limit;
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int maint_thres;
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bool pcut_enable;
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u8 pcut_max_time;
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u8 pcut_flag_time;
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u8 pcut_max_restart;
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u8 pcut_debounce_time;
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};
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/**
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* struct ab8500_charger_maximization - struct used by the board config.
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* @use_maxi: Enable maximization for this battery type
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* @maxi_chg_curr_ua: Maximum charger current allowed in microampere
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* @maxi_wait_cycles: cycles to wait before setting charger current
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* @charger_curr_step_ua: delta between two charger current settings (uA)
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*/
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struct ab8500_maxim_parameters {
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bool ena_maxi;
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int chg_curr_ua;
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int wait_cycles;
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int charger_curr_step_ua;
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};
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/**
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* struct ab8500_bm_capacity_levels - ab8500 capacity level data
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* @critical: critical capacity level in percent
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* @low: low capacity level in percent
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* @normal: normal capacity level in percent
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* @high: high capacity level in percent
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* @full: full capacity level in percent
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*/
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struct ab8500_bm_capacity_levels {
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int critical;
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int low;
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int normal;
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int high;
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int full;
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};
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/**
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* struct ab8500_bm_charger_parameters - Charger specific parameters
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* @usb_volt_max_uv: maximum allowed USB charger voltage in uV
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* @usb_curr_max_ua: maximum allowed USB charger current in uA
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* @ac_volt_max_uv: maximum allowed AC charger voltage in uV
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* @ac_curr_max_ua: maximum allowed AC charger current in uA
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*/
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struct ab8500_bm_charger_parameters {
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int usb_volt_max_uv;
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int usb_curr_max_ua;
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int ac_volt_max_uv;
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int ac_curr_max_ua;
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};
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/**
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* struct ab8500_bm_data - ab8500 battery management data
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* @bi battery info from device tree
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* @temp_now present battery temperature
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* @temp_interval_chg temperature measurement interval in s when charging
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* @temp_interval_nochg temperature measurement interval in s when not charging
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* @main_safety_tmr_h safety timer for main charger
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* @usb_safety_tmr_h safety timer for usb charger
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* @bkup_bat_v voltage which we charge the backup battery with
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* @bkup_bat_i current which we charge the backup battery with
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* @capacity_scaling indicates whether capacity scaling is to be used
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* @chg_unknown_bat flag to enable charging of unknown batteries
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* @enable_overshoot flag to enable VBAT overshoot control
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* @auto_trig flag to enable auto adc trigger
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* @fg_res resistance of FG resistor in 0.1mOhm
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* @interval_charging charge alg cycle period time when charging (sec)
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* @interval_not_charging charge alg cycle period time when not charging (sec)
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* @temp_hysteresis temperature hysteresis
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* @maxi maximization parameters
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* @cap_levels capacity in percent for the different capacity levels
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* @chg_params charger parameters
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* @fg_params fuel gauge parameters
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*/
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struct ab8500_bm_data {
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struct power_supply_battery_info *bi;
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int temp_now;
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int temp_interval_chg;
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int temp_interval_nochg;
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int main_safety_tmr_h;
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int usb_safety_tmr_h;
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int bkup_bat_v;
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int bkup_bat_i;
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bool capacity_scaling;
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bool chg_unknown_bat;
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bool enable_overshoot;
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bool auto_trig;
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int fg_res;
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int interval_charging;
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int interval_not_charging;
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int temp_hysteresis;
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const struct ab8500_maxim_parameters *maxi;
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const struct ab8500_bm_capacity_levels *cap_levels;
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const struct ab8500_bm_charger_parameters *chg_params;
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const struct ab8500_fg_parameters *fg_params;
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};
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/* Forward declaration */
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struct ab8500_fg;
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extern struct ab8500_bm_data ab8500_bm_data;
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void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA);
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struct ab8500_fg *ab8500_fg_get(void);
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int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev);
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int ab8500_fg_inst_curr_start(struct ab8500_fg *di);
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int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res);
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int ab8500_fg_inst_curr_started(struct ab8500_fg *di);
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int ab8500_fg_inst_curr_done(struct ab8500_fg *di);
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int ab8500_bm_of_probe(struct power_supply *psy,
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struct ab8500_bm_data *bm);
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void ab8500_bm_of_remove(struct power_supply *psy,
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struct ab8500_bm_data *bm);
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extern struct platform_driver ab8500_fg_driver;
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extern struct platform_driver ab8500_btemp_driver;
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extern struct platform_driver ab8500_chargalg_driver;
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#endif /* _AB8500_CHARGER_H_ */
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