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581 lines
17 KiB
581 lines
17 KiB
/* 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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/* current is mA */ |
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#define USB_0P1A 100 |
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#define USB_0P2A 200 |
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#define USB_0P3A 300 |
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#define USB_0P4A 400 |
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#define USB_0P5A 500 |
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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 */ |
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#define BATT_OVV_VALUE 4750 |
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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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/* |
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* ADC for the battery thermistor. |
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* When using the AB8500_ADC_THERM_BATCTRL the battery ID resistor is combined |
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* with a NTC resistor to both identify the battery and to measure its |
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* temperature. Different phone manufactures uses different techniques to both |
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* identify the battery and to read its temperature. |
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*/ |
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enum ab8500_adc_therm { |
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AB8500_ADC_THERM_BATCTRL, |
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AB8500_ADC_THERM_BATTEMP, |
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}; |
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/** |
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* struct ab8500_res_to_temp - defines one point in a temp to res curve. To |
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* be used in battery packs that combines the identification resistor with a |
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* NTC resistor. |
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* @temp: battery pack temperature in Celsius |
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* @resist: NTC resistor net total resistance |
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*/ |
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struct ab8500_res_to_temp { |
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int temp; |
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int resist; |
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}; |
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/** |
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* struct ab8500_v_to_cap - Table for translating voltage to capacity |
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* @voltage: Voltage in mV |
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* @capacity: Capacity in percent |
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*/ |
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struct ab8500_v_to_cap { |
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int voltage; |
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int capacity; |
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}; |
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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: FG accumulation time in high current mode |
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* @high_curr_threshold: High current threshold, in mA |
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* @lowbat_threshold: Low battery threshold, in mV |
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* @overbat_threshold: Over battery threshold, in mV |
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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; |
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int lowbat_threshold; |
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int overbat_threshold; |
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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: Maximum charger current allowed |
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* @maxi_wait_cycles: cycles to wait before setting charger current |
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* @charger_curr_step delta between two charger current settings (mA) |
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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; |
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int wait_cycles; |
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int charger_curr_step; |
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}; |
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/** |
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* struct ab8500_battery_type - different batteries supported |
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* @name: battery technology |
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* @resis_high: battery upper resistance limit |
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* @resis_low: battery lower resistance limit |
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* @charge_full_design: Maximum battery capacity in mAh |
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* @nominal_voltage: Nominal voltage of the battery in mV |
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* @termination_vol: max voltage upto which battery can be charged |
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* @termination_curr battery charging termination current in mA |
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* @recharge_cap battery capacity limit that will trigger a new |
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* full charging cycle in the case where maintenan- |
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* -ce charging has been disabled |
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* @normal_cur_lvl: charger current in normal state in mA |
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* @normal_vol_lvl: charger voltage in normal state in mV |
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* @maint_a_cur_lvl: charger current in maintenance A state in mA |
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* @maint_a_vol_lvl: charger voltage in maintenance A state in mV |
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* @maint_a_chg_timer_h: charge time in maintenance A state |
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* @maint_b_cur_lvl: charger current in maintenance B state in mA |
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* @maint_b_vol_lvl: charger voltage in maintenance B state in mV |
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* @maint_b_chg_timer_h: charge time in maintenance B state |
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* @low_high_cur_lvl: charger current in temp low/high state in mA |
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* @low_high_vol_lvl: charger voltage in temp low/high state in mV' |
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* @battery_resistance: battery inner resistance in mOhm. |
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* @n_r_t_tbl_elements: number of elements in r_to_t_tbl |
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* @r_to_t_tbl: table containing resistance to temp points |
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* @n_v_cap_tbl_elements: number of elements in v_to_cap_tbl |
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* @v_to_cap_tbl: Voltage to capacity (in %) table |
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* @n_batres_tbl_elements number of elements in the batres_tbl |
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* @batres_tbl battery internal resistance vs temperature table |
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*/ |
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struct ab8500_battery_type { |
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int name; |
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int resis_high; |
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int resis_low; |
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int charge_full_design; |
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int nominal_voltage; |
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int termination_vol; |
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int termination_curr; |
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int recharge_cap; |
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int normal_cur_lvl; |
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int normal_vol_lvl; |
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int maint_a_cur_lvl; |
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int maint_a_vol_lvl; |
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int maint_a_chg_timer_h; |
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int maint_b_cur_lvl; |
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int maint_b_vol_lvl; |
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int maint_b_chg_timer_h; |
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int low_high_cur_lvl; |
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int low_high_vol_lvl; |
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int battery_resistance; |
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int n_temp_tbl_elements; |
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const struct ab8500_res_to_temp *r_to_t_tbl; |
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int n_v_cap_tbl_elements; |
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const struct ab8500_v_to_cap *v_to_cap_tbl; |
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int n_batres_tbl_elements; |
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const struct batres_vs_temp *batres_tbl; |
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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: maximum allowed USB charger voltage in mV |
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* @usb_curr_max: maximum allowed USB charger current in mA |
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* @ac_volt_max: maximum allowed AC charger voltage in mV |
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* @ac_curr_max: maximum allowed AC charger current in mA |
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*/ |
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struct ab8500_bm_charger_parameters { |
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int usb_volt_max; |
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int usb_curr_max; |
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int ac_volt_max; |
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int ac_curr_max; |
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}; |
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/** |
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* struct ab8500_bm_data - ab8500 battery management data |
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* @temp_under under this temp, charging is stopped |
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* @temp_low between this temp and temp_under charging is reduced |
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* @temp_high between this temp and temp_over charging is reduced |
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* @temp_over over this temp, charging is stopped |
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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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* @no_maintenance indicates that maintenance charging is disabled |
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* @capacity_scaling indicates whether capacity scaling is to be used |
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* @ab8500_adc_therm placement of thermistor, batctrl or battemp adc |
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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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* @n_btypes number of elements in array bat_type |
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* @batt_id index of the identified battery in array bat_type |
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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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* @gnd_lift_resistance Battery ground to phone ground resistance (mOhm) |
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* @n_chg_out_curr number of elements in array chg_output_curr |
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* @n_chg_in_curr number of elements in array chg_input_curr |
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* @chg_output_curr charger output current level map |
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* @chg_input_curr charger input current level map |
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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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* @bat_type table of supported battery types |
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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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int temp_under; |
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int temp_low; |
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int temp_high; |
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int temp_over; |
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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 no_maintenance; |
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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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enum ab8500_adc_therm adc_therm; |
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int fg_res; |
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int n_btypes; |
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int batt_id; |
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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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int gnd_lift_resistance; |
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int n_chg_out_curr; |
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int n_chg_in_curr; |
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int *chg_output_curr; |
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int *chg_input_curr; |
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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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struct ab8500_battery_type *bat_type; |
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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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|
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enum { |
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NTC_EXTERNAL = 0, |
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NTC_INTERNAL, |
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}; |
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/** |
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* struct res_to_temp - defines one point in a temp to res curve. To |
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* be used in battery packs that combines the identification resistor with a |
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* NTC resistor. |
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* @temp: battery pack temperature in Celsius |
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* @resist: NTC resistor net total resistance |
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*/ |
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struct res_to_temp { |
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int temp; |
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int resist; |
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}; |
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|
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/** |
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* struct batres_vs_temp - defines one point in a temp vs battery internal |
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* resistance curve. |
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* @temp: battery pack temperature in Celsius |
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* @resist: battery internal reistance in mOhm |
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*/ |
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struct batres_vs_temp { |
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int temp; |
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int resist; |
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}; |
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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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|
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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 device *dev, |
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struct device_node *np, |
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struct ab8500_bm_data *bm); |
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|
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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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|
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#endif /* _AB8500_CHARGER_H_ */
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