317 lines
10 KiB
C
317 lines
10 KiB
C
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/* Copyright 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Intersil ISL-9237/8 battery charger driver.
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*/
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#ifndef __CROS_EC_ISL923X_H
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#define __CROS_EC_ISL923X_H
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#define ISL923X_ADDR_FLAGS (0x09)
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/* Registers */
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#define ISL923X_REG_CHG_CURRENT 0x14
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#define ISL923X_REG_ADAPTER_CURRENT1 0x3f
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#define ISL923X_REG_ADAPTER_CURRENT2 0x3b
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#define ISL923X_REG_SYS_VOLTAGE_MAX 0x15
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#define ISL923X_REG_SYS_VOLTAGE_MIN 0x3e
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#define ISL923X_REG_PROCHOT_AC 0x47
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#define ISL923X_REG_PROCHOT_DC 0x48
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#define ISL923X_REG_T1_T2 0x38
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#define ISL923X_REG_CONTROL0 0x39
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#define ISL923X_REG_CONTROL1 0x3c
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#define ISL923X_REG_CONTROL2 0x3d
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#define ISL9238_REG_CONTROL3 0x4c
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#define ISL9238_REG_CONTROL4 0x4e
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#define ISL923X_REG_INFO 0x3a
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#define ISL9238_REG_INFO2 0x4d
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#define ISL923X_REG_OTG_VOLTAGE 0x49
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#define ISL923X_REG_OTG_CURRENT 0x4a
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#define ISL9238_REG_INPUT_VOLTAGE 0x4b
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#define ISL923X_REG_MANUFACTURER_ID 0xfe
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#define ISL923X_REG_DEVICE_ID 0xff
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/* Sense resistor default values in mOhm */
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#define ISL923X_DEFAULT_SENSE_RESISTOR_AC 20
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#define ISL923X_DEFAULT_SENSE_RESISTOR 10
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/* Maximum charging current register value */
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#define ISL923X_CURRENT_REG_MAX 0x17c0 /* bit<12:2> 10111110000 */
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/* 2-level adpater current limit duration T1 & T2 in micro seconds */
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#define ISL923X_T1_10000 0x00
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#define ISL923X_T1_20000 0x01
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#define ISL923X_T1_15000 0x02
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#define ISL923X_T1_5000 0x03
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#define ISL923X_T1_1000 0x04
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#define ISL923X_T1_500 0x05
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#define ISL923X_T1_100 0x06
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#define ISL923X_T1_0 0x07
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#define ISL923X_T2_10 (0x00 << 8)
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#define ISL923X_T2_100 (0x01 << 8)
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#define ISL923X_T2_500 (0x02 << 8)
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#define ISL923X_T2_1000 (0x03 << 8)
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#define ISL923X_T2_300 (0x04 << 8)
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#define ISL923X_T2_750 (0x05 << 8)
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#define ISL923X_T2_2000 (0x06 << 8)
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#define ISL923X_T2_10000 (0x07 << 8)
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#define ISL9237_SYS_VOLTAGE_REG_MAX 13824
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#define ISL9238_SYS_VOLTAGE_REG_MAX 18304
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#define ISL923X_SYS_VOLTAGE_REG_MIN 2048
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/* PROCHOT# debounce time and duration time in micro seconds */
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#define ISL923X_PROCHOT_DURATION_10000 (0 << 6)
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#define ISL923X_PROCHOT_DURATION_20000 BIT(6)
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#define ISL923X_PROCHOT_DURATION_15000 (2 << 6)
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#define ISL923X_PROCHOT_DURATION_5000 (3 << 6)
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#define ISL923X_PROCHOT_DURATION_1000 (4 << 6)
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#define ISL923X_PROCHOT_DURATION_500 (5 << 6)
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#define ISL923X_PROCHOT_DURATION_100000 (6 << 6)
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#define ISL923X_PROCHOT_DURATION_0 (7 << 6)
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#define ISL923X_PROCHOT_DURATION_MASK (7 << 6)
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#define ISL923X_PROCHOT_DEBOUNCE_10 (0 << 9)
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#define ISL923X_PROCHOT_DEBOUNCE_100 BIT(9)
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#define ISL923X_PROCHOT_DEBOUNCE_500 (2 << 9)
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#define ISL923X_PROCHOT_DEBOUNCE_1000 (3 << 9)
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#define ISL923X_PROCHOT_DEBOUNCE_MASK (3 << 9)
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/* Maximum PROCHOT register value */
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#define ISL923X_PROCHOT_AC_REG_MAX 6400
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#define ISL923X_PROCHOT_DC_REG_MAX 12800
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/* Control0: adapter voltage regulation reference */
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#define ISL9237_C0_VREG_REF_3900 0
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#define ISL9237_C0_VREG_REF_4200 1
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#define ISL9237_C0_VREG_REF_4500 2
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#define ISL9237_C0_VREG_REF_4800 3
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#define ISL9237_C0_VREG_REF_MASK 0x03
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/* Control0: disable adapter voltaqe regulation */
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#define ISL923X_C0_DISABLE_VREG BIT(2)
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/* Control0: battery DCHOT reference for RS2 == 20mOhm */
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#define ISL923X_C0_DCHOT_6A (0 << 3)
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#define ISL923X_C0_DCHOT_5A BIT(3)
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#define ISL923X_C0_DCHOT_4A (2 << 3)
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#define ISL923X_C0_DCHOT_3A (3 << 3)
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#define ISL923X_C0_DCHOT_MASK (3 << 3)
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/* Control1: general purpose comparator debounce time in micro second */
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#define ISL923X_C1_GP_DEBOUNCE_2 (0 << 14)
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#define ISL923X_C1_GP_DEBOUNCE_12 BIT(14)
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#define ISL923X_C1_GP_DEBOUNCE_2000 (2 << 14)
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#define ISL923X_C1_GP_DEBOUNCE_5000000 (3 << 14)
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#define ISL923X_C1_GP_DEBOUNCE_MASK (3 << 14)
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/* Control1: learn mode */
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#define ISL923X_C1_LEARN_MODE_AUTOEXIT BIT(13)
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#define ISL923X_C1_LEARN_MODE_ENABLE BIT(12)
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/* Control1: OTG enable */
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#define ISL923X_C1_OTG BIT(11)
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/* Control1: audio filter */
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#define ISL923X_C1_AUDIO_FILTER BIT(10)
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/* Control1: switch frequency, ISL9238 defines bit 7 as unused */
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#define ISL923X_C1_SWITCH_FREQ_PROG (0 << 7) /* 1000kHz or PROG */
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#define ISL9237_C1_SWITCH_FREQ_913K BIT(7)
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#define ISL923X_C1_SWITCH_FREQ_839K (2 << 7)
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#define ISL9237_C1_SWITCH_FREQ_777K (3 << 7)
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#define ISL923X_C1_SWITCH_FREQ_723K (4 << 7)
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#define ISL9237_C1_SWITCH_FREQ_676K (5 << 7)
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#define ISL923X_C1_SWITCH_FREQ_635K (6 << 7)
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#define ISL9237_C1_SWITCH_FREQ_599K (7 << 7)
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#define ISL923X_C1_SWITCH_FREQ_MASK (7 << 7)
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/* Control1: turbo mode */
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#define ISL923X_C1_TURBO_MODE BIT(6)
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/* Control1: AMON & BMON */
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#define ISL923X_C1_DISABLE_MON BIT(5)
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#define ISL923X_C1_SELECT_BMON BIT(4)
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/* Control1: PSYS, VSYS, VSYSLO */
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#define ISL923X_C1_ENABLE_PSYS BIT(3)
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#define ISL923X_C1_ENABLE_VSYS BIT(2)
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#define ISL923X_C1_VSYSLO_REF_6000 0
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#define ISL923X_C1_VSYSLO_REF_6300 1
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#define ISL923X_C1_VSYSLO_REF_6600 2
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#define ISL923X_C1_VSYSLO_REF_6900 3
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#define ISL923X_C1_VSYSLO_REF_MASK 3
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/* Control2: trickle charging current in mA */
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#define ISL923X_C2_TRICKLE_256 (0 << 14)
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#define ISL923X_C2_TRICKLE_128 BIT(14)
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#define ISL923X_C2_TRICKLE_64 (2 << 14)
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#define ISL923X_C2_TRICKLE_512 (3 << 14)
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#define ISL923X_C2_TRICKLE_MASK (3 << 14)
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/* Control2: OTGEN debounce time in ms */
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#define ISL923X_C2_OTG_DEBOUNCE_1300 (0 << 13)
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#define ISL923X_C2_OTG_DEBOUNCE_150 BIT(13)
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#define ISL923X_C2_OTG_DEBOUNCE_MASK BIT(13)
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/* Control2: 2-level adapter over current */
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#define ISL923X_C2_2LVL_OVERCURRENT BIT(12)
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/* Control2: adapter insertion debounce time in ms */
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#define ISL923X_C2_ADAPTER_DEBOUNCE_1300 (0 << 11)
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#define ISL923X_C2_ADAPTER_DEBOUNCE_150 BIT(11)
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#define ISL923X_C2_ADAPTER_DEBOUNCE_MASK BIT(11)
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/* Control2: PROCHOT debounce time in uS */
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#define ISL9238_C2_PROCHOT_DEBOUNCE_7 (0 << 9)
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#define ISL9237_C2_PROCHOT_DEBOUNCE_10 (0 << 9)
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#define ISL923X_C2_PROCHOT_DEBOUNCE_100 BIT(9)
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#define ISL923X_C2_PROCHOT_DEBOUNCE_500 (2 << 9)
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#define ISL923X_C2_PROCHOT_DEBOUNCE_1000 (3 << 9)
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#define ISL923X_C2_PROCHOT_DEBOUNCE_MASK (3 << 9)
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/* Control2: min PROCHOT duration in uS */
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#define ISL923X_C2_PROCHOT_DURATION_10000 (0 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_20000 BIT(6)
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#define ISL923X_C2_PROCHOT_DURATION_15000 (2 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_5000 (3 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_1000 (4 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_500 (5 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_100 (6 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_0 (7 << 6)
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#define ISL923X_C2_PROCHOT_DURATION_MASK (7 << 6)
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/* Control2: turn off ASGATE in OTG mode */
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#define ISL923X_C2_ASGATE_OFF BIT(5)
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/* Control2: CMIN, general purpose comparator reference in mV */
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#define ISL923X_C2_CMIN_2000 (0 << 4)
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#define ISL923X_C2_CMIN_1200 BIT(4)
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/* Control2: general purpose comparator enable */
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#define ISL923X_C2_COMPARATOR BIT(3)
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/* Control2: invert CMOUT, general purpose comparator output, polarity */
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#define ISL923X_C2_INVERT_CMOUT BIT(2)
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/* Control2: disable WOC, way over current */
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#define ISL923X_C2_WOC_OFF BIT(1)
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/* Control2: PSYS gain in uA/W (ISL9237 only) */
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#define ISL9237_C2_PSYS_GAIN BIT(0)
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/*
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* Control3: Buck-Boost switching period
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* 0: x1 frequency, 1: half frequency.
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*/
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#define ISL9238_C3_BB_SWITCHING_PERIOD BIT(1)
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/*
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* Control3: AMON/BMON direction.
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* 0: adapter/charging, 1:OTG/discharging (ISL9238 only)
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*/
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#define ISL9238_C3_AMON_BMON_DIRECTION BIT(3)
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/*
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* Control3: Disables Autonomous Charing
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*
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* Note: This is disabled automatically when ever we set the current limit
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* manually (which we always do).
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*/
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#define ISL9238_C3_DISABLE_AUTO_CHARING BIT(7)
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/* Control3: PSYS gain in uA/W (ISL9238 only) */
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#define ISL9238_C3_PSYS_GAIN BIT(9)
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/* Control3: Don't reload ACLIM on ACIN. */
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#define ISL9238_C3_NO_RELOAD_ACLIM_ON_ACIN BIT(14)
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/* Control3: Don't reread PROG pin. */
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#define ISL9238_C3_NO_REREAD_PROG_PIN BIT(15)
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/* OTG voltage limit in mV, current limit in mA */
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#define ISL9237_OTG_VOLTAGE_MIN 4864
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#define ISL9237_OTG_VOLTAGE_MAX 5376
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#define ISL9238_OTG_VOLTAGE_MAX 27456
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#define ISL923X_OTG_CURRENT_MAX 4096
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#define ISL9238_OTG_VOLTAGE_STEP 12
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#define ISL9238_OTG_VOLTAGE_SHIFT 3
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#define ISL923X_OTG_CURRENT_STEP 128
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#define ISL923X_OTG_CURRENT_SHIFT 7
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/* Input voltage regulation voltage reference */
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#define ISL9238_INPUT_VOLTAGE_REF_STEP 341
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#define ISL9238_INPUT_VOLTAGE_REF_SHIFT 8
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/* Info register fields */
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#define ISL9237_INFO_PROG_RESISTOR_MASK 0xf
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#define ISL923X_INFO_TRICKLE_ACTIVE_MASK BIT(4)
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#define ISL9237_INFO_PSTATE_SHIFT 5
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#define ISL9237_INFO_PSTATE_MASK 3
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enum isl9237_power_stage {
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BUCK_MODE,
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BOOST_MODE,
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BUCK_BOOST_MODE,
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REVERSE_BUCK_MODE
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};
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#define ISL9237_INFO_FSM_STATE_SHIFT 7
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#define ISL9237_INFO_FSM_STATE_MASK 7
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enum isl9237_fsm_state {
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FSM_OFF,
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FSM_BAT,
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FSM_ADPT,
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FSM_ACOK,
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FSM_VSYS,
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FSM_CHRG,
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FSM_ENTOG,
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FSM_OTG
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};
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#define ISL923X_INFO_VSYSLO BIT(10)
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#define ISL923X_INFO_DCHOT BIT(11)
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#define ISL9237_INFO_ACHOT BIT(12)
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#if defined(CONFIG_CHARGER_ISL9237)
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#define CHARGER_NAME "isl9237"
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#define CHARGE_V_MAX ISL9237_SYS_VOLTAGE_REG_MAX
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#define CHARGE_V_MIN ISL923X_SYS_VOLTAGE_REG_MIN
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#define CHARGE_V_STEP 8
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#elif defined(CONFIG_CHARGER_ISL9238)
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#define CHARGER_NAME "isl9238"
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#define CHARGE_V_MAX ISL9238_SYS_VOLTAGE_REG_MAX
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#define CHARGE_V_MIN ISL923X_SYS_VOLTAGE_REG_MIN
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#define CHARGE_V_STEP 8
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#endif
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#define CHARGE_I_MAX ISL923X_CURRENT_REG_MAX
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#define CHARGE_I_MIN 4
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#define CHARGE_I_OFF 0
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#define CHARGE_I_STEP 4
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#define INPUT_I_MAX ISL923X_CURRENT_REG_MAX
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#define INPUT_I_MIN 4
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#define INPUT_I_STEP 4
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||
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||
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#define I2C_ADDR_CHARGER_FLAGS ISL923X_ADDR_FLAGS
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||
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#endif /* __CROS_EC_ISL923X_H */
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||
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||
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/**
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||
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* Initialize AC & DC prochot threshold
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||
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*
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* @param AC Porchot threshold current in mA:
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||
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* multiple of 128 up to 6400 mA
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||
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* DC Porchot threshold current in mA:
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||
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* multiple of 128 up to 12800 mA
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||
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* Bits below 128mA are truncated (ignored).
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||
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* @return enum ec_error_list
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||
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*/
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||
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int isl923x_set_ac_prochot(uint16_t ma);
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||
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int isl923x_set_dc_prochot(uint16_t ma);
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||
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|
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||
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#define ISL923X_AC_PROCHOT_CURRENT_MAX 6400 /* mA */
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||
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#define ISL923X_DC_PROCHOT_CURRENT_MAX 12800 /* mA */
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