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charger: isl923x: Add support for ISL9238
ISL9237 and ISL9238 are almost identical, with few register changes, let's make the driver generic, to support both chargers. BRANCH=none BUG=chrome-os-partner:61166 TEST=make buildall -j Change-Id: I029894dd62ab7e45897d877289707ee8c1ff1d09 Reviewed-on: https://chromium-review.googlesource.com/422197 Commit-Ready: Nicolas Boichat <drinkcat@chromium.org> Tested-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
This commit is contained in:
Nicolas Boichat
committed by
chrome-bot
chrome-bot
parent
0c7b7f222c
commit
b1101b8ed6
@@ -47,7 +47,8 @@ driver-$(CONFIG_CHARGER_BQ24773)+=charger/bq24773.o
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driver-$(CONFIG_CHARGER_BQ25890)+=charger/bq2589x.o
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driver-$(CONFIG_CHARGER_BQ25892)+=charger/bq2589x.o
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driver-$(CONFIG_CHARGER_BQ25895)+=charger/bq2589x.o
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driver-$(CONFIG_CHARGER_ISL9237)+=charger/isl9237.o
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driver-$(CONFIG_CHARGER_ISL9237)+=charger/isl923x.o
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driver-$(CONFIG_CHARGER_ISL9238)+=charger/isl923x.o
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# I/O expander
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driver-$(CONFIG_IO_EXPANDER_PCA9534)+=ioexpander_pca9534.o
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@@ -1,248 +0,0 @@
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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 battery charger driver.
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*/
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#ifndef __CROS_EC_ISL9237_H
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#define __CROS_EC_ISL9237_H
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#define ISL9237_ADDR 0x12 /* 7bit address 0001001 */
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/* Registers */
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#define ISL9237_REG_CHG_CURRENT 0x14
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#define ISL9237_REG_ADAPTER_CURRENT1 0x3f
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#define ISL9237_REG_ADAPTER_CURRENT2 0x3b
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#define ISL9237_REG_SYS_VOLTAGE_MAX 0x15
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#define ISL9237_REG_SYS_VOLTAGE_MIN 0x3e
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#define ISL9237_REG_PROCHOT_AC 0x47
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#define ISL9237_REG_PROCHOT_DC 0x48
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#define ISL9237_REG_T1_T2 0x38
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#define ISL9237_REG_CONTROL1 0x3c
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#define ISL9237_REG_CONTROL2 0x3d
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#define ISL9237_REG_INFO 0x3a
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#define ISL9237_REG_OTG_VOLTAGE 0x49
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#define ISL9237_REG_OTG_CURRENT 0x4a
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#define ISL9237_REG_MANUFACTURER_ID 0xfe
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#define ISL9237_REG_DEVICE_ID 0xff
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#define ISL9237_REG_CONTROL0 0x39
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/* Sense resistor default values in mOhm */
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#define ISL9237_DEFAULT_SENSE_RESISTOR_AC 20
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#define ISL9237_DEFAULT_SENSE_RESISTOR 10
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/* Maximum charging current register value */
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#define ISL9237_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 ISL9237_T1_10000 0x00
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#define ISL9237_T1_20000 0x01
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#define ISL9237_T1_15000 0x02
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#define ISL9237_T1_5000 0x03
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#define ISL9237_T1_1000 0x04
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#define ISL9237_T1_500 0x05
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#define ISL9237_T1_100 0x06
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#define ISL9237_T1_0 0x07
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#define ISL9237_T2_10 (0x00 << 8)
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#define ISL9237_T2_100 (0x01 << 8)
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#define ISL9237_T2_500 (0x02 << 8)
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#define ISL9237_T2_1000 (0x03 << 8)
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#define ISL9237_T2_300 (0x04 << 8)
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#define ISL9237_T2_750 (0x05 << 8)
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#define ISL9237_T2_2000 (0x06 << 8)
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#define ISL9237_T2_10000 (0x07 << 8)
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#define ISL9237_SYS_VOLTAGE_REG_MAX 13824
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#define ISL9237_SYS_VOLTAGE_REG_MIN 2048
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/* PROCHOT# debounce time and duration time in micro seconds */
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#define ISL9237_PROCHOT_DURATION_10000 (0 << 6)
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#define ISL9237_PROCHOT_DURATION_20000 (1 << 6)
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#define ISL9237_PROCHOT_DURATION_15000 (2 << 6)
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#define ISL9237_PROCHOT_DURATION_5000 (3 << 6)
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#define ISL9237_PROCHOT_DURATION_1000 (4 << 6)
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#define ISL9237_PROCHOT_DURATION_500 (5 << 6)
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#define ISL9237_PROCHOT_DURATION_100000 (6 << 6)
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#define ISL9237_PROCHOT_DURATION_0 (7 << 6)
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#define ISL9237_PROCHOT_DURATION_MASK (7 << 6)
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#define ISL9237_PROCHOT_DEBOUNCE_10 (0 << 9)
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#define ISL9237_PROCHOT_DEBOUNCE_100 (1 << 9)
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#define ISL9237_PROCHOT_DEBOUNCE_500 (2 << 9)
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#define ISL9237_PROCHOT_DEBOUNCE_1000 (3 << 9)
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#define ISL9237_PROCHOT_DEBOUNCE_MASK (3 << 9)
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/* Maximum PROCHOT register value */
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#define ISL9237_PROCHOT_AC_REG_MAX 6400
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#define ISL9237_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 ISL9237_C0_DISABLE_VREG (1 << 2)
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/* Control0: battery DCHOT reference for RS2 == 20mOhm */
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#define ISL9237_C0_DCHOT_6A (0 << 3)
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#define ISL9237_C0_DCHOT_5A (1 << 3)
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#define ISL9237_C0_DCHOT_4A (2 << 3)
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#define ISL9237_C0_DCHOT_3A (3 << 3)
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#define ISL9237_C0_DCHOT_MASK (3 << 3)
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/* Control1: general purpose comparator debounce time in micro second */
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#define ISL9237_C1_GP_DEBOUNCE_2 (0 << 14)
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#define ISL9237_C1_GP_DEBOUNCE_12 (1 << 14)
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#define ISL9237_C1_GP_DEBOUNCE_2000 (2 << 14)
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#define ISL9237_C1_GP_DEBOUNCE_5000000 (3 << 14)
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#define ISL9237_C1_GP_DEBOUNCE_MASK (3 << 14)
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/* Control1: learn mode */
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#define ISL9237_C1_LEARN_MODE_AUTOEXIT (1 << 13)
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#define ISL9237_C1_LEARN_MODE_ENABLE (1 << 12)
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/* Control1: OTG enable */
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#define ISL9237_C1_OTG (1 << 11)
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/* Control1: audio filter */
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#define ISL9237_C1_AUDIO_FILTER (1 << 10)
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/* Control1: switch frequency */
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#define ISL9237_C1_SWITCH_FREQ_PROG (0 << 7) /* 1000kHz or PROG */
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#define ISL9237_C1_SWITCH_FREQ_913K (1 << 7)
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#define ISL9237_C1_SWITCH_FREQ_839K (2 << 7)
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#define ISL9237_C1_SWITCH_FREQ_777K (3 << 7)
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#define ISL9237_C1_SWITCH_FREQ_723K (4 << 7)
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#define ISL9237_C1_SWITCH_FREQ_676K (5 << 7)
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#define ISL9237_C1_SWITCH_FREQ_635K (6 << 7)
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#define ISL9237_C1_SWITCH_FREQ_599K (7 << 7)
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#define ISL9237_C1_SWITCH_FREQ_MASK (7 << 7)
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/* Control1: turbo mode */
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#define ISL9237_C1_TURBO_MODE (1 << 6)
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/* Control1: AMON & BMON */
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#define ISL9237_C1_DISABLE_MON (1 << 5)
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#define ISL9237_C1_SELECT_BMON (1 << 4)
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/* Control1: PSYS, VSYS, VSYSLO */
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#define ISL9237_C1_ENABLE_PSYS (1 << 3)
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#define ISL9237_C1_ENABLE_VSYS (1 << 2)
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#define ISL9237_C1_VSYSLO_REF_6000 0
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#define ISL9237_C1_VSYSLO_REF_6300 1
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#define ISL9237_C1_VSYSLO_REF_6600 2
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#define ISL9237_C1_VSYSLO_REF_6900 3
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#define ISL9237_C1_VSYSLO_REF_MASK 3
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/* Control2: trickle charging current in mA */
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#define ISL9237_C2_TRICKLE_256 (0 << 14)
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#define ISL9237_C2_TRICKLE_128 (1 << 14)
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#define ISL9237_C2_TRICKLE_64 (2 << 14)
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#define ISL9237_C2_TRICKLE_512 (3 << 14)
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#define ISL9237_C2_TRICKLE_MASK (3 << 14)
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/* Control2: OTGEN debounce time in ms */
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#define ISL9237_C2_OTG_DEBOUNCE_1300 (0 << 13)
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#define ISL9237_C2_OTG_DEBOUNCE_150 (1 << 13)
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#define ISL9237_C2_OTG_DEBOUNCE_MASK (1 << 13)
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/* Control2: 2-level adapter over current */
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#define ISL9237_C2_2LVL_OVERCURRENT (1 << 12)
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/* Control2: adapter insertion debounce time in ms */
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#define ISL9237_C2_ADAPTER_DEBOUNCE_1300 (0 << 11)
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#define ISL9237_C2_ADAPTER_DEBOUNCE_150 (1 << 11)
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#define ISL9237_C2_ADAPTER_DEBOUNCE_MASK (1 << 11)
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/* Control2: PROCHOT debounce time in uS */
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#define ISL9237_C2_PROCHOT_DEBOUNCE_10 (0 << 9)
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#define ISL9237_C2_PROCHOT_DEBOUNCE_100 (1 << 9)
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#define ISL9237_C2_PROCHOT_DEBOUNCE_500 (2 << 9)
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#define ISL9237_C2_PROCHOT_DEBOUNCE_1000 (3 << 9)
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#define ISL9237_C2_PROCHOT_DEBOUNCE_MASK (3 << 9)
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/* Control2: min PROCHOT duration in uS */
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#define ISL9237_C2_PROCHOT_DURATION_10000 (0 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_20000 (1 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_15000 (2 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_5000 (3 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_1000 (4 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_500 (5 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_100 (6 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_0 (7 << 6)
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#define ISL9237_C2_PROCHOT_DURATION_MASK (7 << 6)
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/* Control2: turn off ASGATE in OTG mode */
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#define ISL9237_C2_ASGATE_OFF (1 << 5)
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/* Control2: CMIN, general purpose comparator reference in mV */
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#define ISL9237_C2_CMIN_2000 (0 << 4)
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#define ISL9237_C2_CMIN_1200 (1 << 4)
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/* Control2: general purpose comparator enable */
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#define ISL9237_C2_COMPARATOR (1 << 3)
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/* Control2: invert CMOUT, general purpose comparator output, polarity */
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#define ISL9237_C2_INVERT_CMOUT (1 << 2)
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/* Control2: disable WOC, way over current */
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#define ISL9237_C2_WOC_OFF (1 << 1)
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/* Control2: PSYS gain in uA/W */
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#define ISL9237_C2_PSYS_GAIN (1 << 0)
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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 ISL9237_OTG_CURRENT_MAX 4096
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/* Info register fields */
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#define ISL9237_INFO_PROG_RESISTOR_MASK 0xf
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#define ISL9237_INFO_TRICKLE_ACTIVE_MASK (1 << 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 ISL9237_INFO_VSYSLO (1 << 10)
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#define ISL9237_INFO_DCHOT (1 << 11)
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#define ISL9237_INFO_ACHOT (1 << 12)
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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 ISL9237_SYS_VOLTAGE_REG_MIN
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#define CHARGE_V_STEP 8
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#define CHARGE_I_MAX ISL9237_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 ISL9237_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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#define I2C_ADDR_CHARGER ISL9237_ADDR
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#endif /* __CROS_EC_ISL9237_H */
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@@ -2,7 +2,7 @@
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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 ISL9237 battery charger driver.
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* Intersil ISL-9237/8 battery charger driver.
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*/
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#include "adc.h"
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@@ -13,7 +13,7 @@
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#include "common.h"
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#include "hooks.h"
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#include "i2c.h"
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#include "isl9237.h"
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#include "isl923x.h"
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#include "timer.h"
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#include "util.h"
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@@ -62,12 +62,12 @@ static inline int raw_write16(int offset, int value)
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static int isl9237_set_current(uint16_t current)
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{
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return raw_write16(ISL9237_REG_CHG_CURRENT, CURRENT_TO_REG(current));
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return raw_write16(ISL923X_REG_CHG_CURRENT, CURRENT_TO_REG(current));
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}
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static int isl9237_set_voltage(uint16_t voltage)
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{
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return raw_write16(ISL9237_REG_SYS_VOLTAGE_MAX, voltage);
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return raw_write16(ISL923X_REG_SYS_VOLTAGE_MAX, voltage);
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}
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/* chip specific interfaces */
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@@ -77,11 +77,11 @@ int charger_set_input_current(int input_current)
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int rv;
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uint16_t reg = AC_CURRENT_TO_REG(input_current);
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rv = raw_write16(ISL9237_REG_ADAPTER_CURRENT1, reg);
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rv = raw_write16(ISL923X_REG_ADAPTER_CURRENT1, reg);
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if (rv)
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return rv;
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return raw_write16(ISL9237_REG_ADAPTER_CURRENT2, reg);
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return raw_write16(ISL923X_REG_ADAPTER_CURRENT2, reg);
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}
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int charger_get_input_current(int *input_current)
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@@ -89,7 +89,7 @@ int charger_get_input_current(int *input_current)
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int rv;
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int reg;
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rv = raw_read16(ISL9237_REG_ADAPTER_CURRENT1, ®);
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rv = raw_read16(ISL923X_REG_ADAPTER_CURRENT1, ®);
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if (rv)
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return rv;
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@@ -102,7 +102,7 @@ int charger_manufacturer_id(int *id)
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int rv;
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int reg;
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rv = raw_read16(ISL9237_REG_MANUFACTURER_ID, ®);
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rv = raw_read16(ISL923X_REG_MANUFACTURER_ID, ®);
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if (rv)
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return rv;
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@@ -115,7 +115,7 @@ int charger_device_id(int *id)
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int rv;
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int reg;
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rv = raw_read16(ISL9237_REG_DEVICE_ID, ®);
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rv = raw_read16(ISL923X_REG_DEVICE_ID, ®);
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if (rv)
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return rv;
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@@ -129,12 +129,12 @@ int charger_get_option(int *option)
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uint32_t controls;
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int reg;
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rv = raw_read8(ISL9237_REG_CONTROL0, ®);
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rv = raw_read8(ISL923X_REG_CONTROL0, ®);
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if (rv)
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return rv;
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controls = reg;
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rv = raw_read16(ISL9237_REG_CONTROL1, ®);
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rv = raw_read16(ISL923X_REG_CONTROL1, ®);
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if (rv)
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return rv;
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@@ -149,13 +149,13 @@ int charger_set_option(int option)
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uint16_t reg;
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reg = option & 0xffff;
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rv = raw_write16(ISL9237_REG_CONTROL0, reg);
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rv = raw_write16(ISL923X_REG_CONTROL0, reg);
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if (rv)
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return rv;
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reg = (option >> 16) & 0xffff;
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return raw_write16(ISL9237_REG_CONTROL1, reg);
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return raw_write16(ISL923X_REG_CONTROL1, reg);
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}
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/* Charger interfaces */
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@@ -183,7 +183,7 @@ int charger_set_mode(int mode)
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if (!learn_mode)
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rv = charger_discharge_on_ac(0);
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/* ISL9237 does not support inhibit mode setting. */
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/* ISL923X does not support inhibit mode setting. */
|
||||
return rv;
|
||||
}
|
||||
|
||||
@@ -192,7 +192,7 @@ int charger_get_current(int *current)
|
||||
int rv;
|
||||
int reg;
|
||||
|
||||
rv = raw_read16(ISL9237_REG_CHG_CURRENT, ®);
|
||||
rv = raw_read16(ISL923X_REG_CHG_CURRENT, ®);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
@@ -207,14 +207,14 @@ int charger_set_current(int current)
|
||||
|
||||
int charger_get_voltage(int *voltage)
|
||||
{
|
||||
return raw_read16(ISL9237_REG_SYS_VOLTAGE_MAX, voltage);
|
||||
return raw_read16(ISL923X_REG_SYS_VOLTAGE_MAX, voltage);
|
||||
}
|
||||
|
||||
int charger_set_voltage(int voltage)
|
||||
{
|
||||
/* The ISL9237 will drop voltage to as low as requested. As the
|
||||
/* The ISL923X will drop voltage to as low as requested. As the
|
||||
* charger state machine will pass in 0 voltage, protect the system
|
||||
* voltage by capping to the minimum. The reason is that the ISL9237
|
||||
* voltage by capping to the minimum. The reason is that the ISL923X
|
||||
* only can regulate the system voltage which will kill the board's
|
||||
* power if below 0. */
|
||||
if (voltage == 0) {
|
||||
@@ -232,7 +232,7 @@ int charger_post_init(void)
|
||||
#ifdef CONFIG_TRICKLE_CHARGING
|
||||
const struct battery_info *bi = battery_get_info();
|
||||
|
||||
rv = raw_write16(ISL9237_REG_SYS_VOLTAGE_MIN, bi->voltage_min);
|
||||
rv = raw_write16(ISL923X_REG_SYS_VOLTAGE_MIN, bi->voltage_min);
|
||||
if (rv)
|
||||
return rv;
|
||||
#endif
|
||||
@@ -241,31 +241,42 @@ int charger_post_init(void)
|
||||
* [10:9]: Prochot# Debounce time
|
||||
* 11b: 1ms
|
||||
*/
|
||||
rv = raw_read16(ISL9237_REG_CONTROL2, ®);
|
||||
rv = raw_read16(ISL923X_REG_CONTROL2, ®);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
rv = raw_write16(ISL9237_REG_CONTROL2,
|
||||
rv = raw_write16(ISL923X_REG_CONTROL2,
|
||||
reg |
|
||||
ISL9237_C2_PROCHOT_DEBOUNCE_1000 |
|
||||
ISL9237_C2_ADAPTER_DEBOUNCE_150);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
rv = charger_get_option(®);
|
||||
ISL923X_C2_PROCHOT_DEBOUNCE_1000 |
|
||||
ISL923X_C2_ADAPTER_DEBOUNCE_150);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
#ifdef CONFIG_CHARGE_RAMP_HW
|
||||
#ifdef CONFIG_ISL9237
|
||||
rv = charger_get_option(®);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
/* Set input voltage regulation reference voltage for charge ramp */
|
||||
reg &= ~ISL9237_C0_VREG_REF_MASK;
|
||||
reg |= ISL9237_C0_VREG_REF_4200;
|
||||
#else
|
||||
/* Disable voltage regulation loop to disable charge ramp */
|
||||
reg |= ISL9237_C0_DISABLE_VREG;
|
||||
#endif
|
||||
reg &= ~ISL923X_C0_VREG_REF_MASK;
|
||||
reg |= ISL923X_C0_VREG_REF_4200;
|
||||
|
||||
return charger_set_option(reg);
|
||||
#else
|
||||
/* ISL9238 default input voltage regulation is 4096 mV. */
|
||||
return EC_SUCCESS;
|
||||
#endif
|
||||
#else
|
||||
rv = charger_get_option(®);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
/* Disable voltage regulation loop to disable charge ramp */
|
||||
reg |= ISL923X_C0_DISABLE_VREG;
|
||||
|
||||
return charger_set_option(reg);
|
||||
#endif
|
||||
}
|
||||
|
||||
int charger_discharge_on_ac(int enable)
|
||||
@@ -273,17 +284,17 @@ int charger_discharge_on_ac(int enable)
|
||||
int rv;
|
||||
int control1;
|
||||
|
||||
rv = raw_read16(ISL9237_REG_CONTROL1, &control1);
|
||||
rv = raw_read16(ISL923X_REG_CONTROL1, &control1);
|
||||
if (rv)
|
||||
return rv;
|
||||
|
||||
control1 &= ~ISL9237_C1_LEARN_MODE_AUTOEXIT;
|
||||
control1 &= ~ISL923X_C1_LEARN_MODE_AUTOEXIT;
|
||||
if (enable)
|
||||
control1 |= ISL9237_C1_LEARN_MODE_ENABLE;
|
||||
control1 |= ISL923X_C1_LEARN_MODE_ENABLE;
|
||||
else
|
||||
control1 &= ~ISL9237_C1_LEARN_MODE_ENABLE;
|
||||
control1 &= ~ISL923X_C1_LEARN_MODE_ENABLE;
|
||||
|
||||
rv = raw_write16(ISL9237_REG_CONTROL1, control1);
|
||||
rv = raw_write16(ISL923X_REG_CONTROL1, control1);
|
||||
|
||||
learn_mode = !rv && enable;
|
||||
return rv;
|
||||
@@ -303,9 +314,9 @@ int charger_set_hw_ramp(int enable)
|
||||
|
||||
/* HW ramp is controlled by input voltage regulation reference bits */
|
||||
if (enable)
|
||||
reg &= ~ISL9237_C0_DISABLE_VREG;
|
||||
reg &= ~ISL923X_C0_DISABLE_VREG;
|
||||
else
|
||||
reg |= ISL9237_C0_DISABLE_VREG;
|
||||
reg |= ISL923X_C0_DISABLE_VREG;
|
||||
|
||||
return charger_set_option(reg);
|
||||
}
|
||||
@@ -348,9 +359,9 @@ static void charger_enable_psys(void)
|
||||
/*
|
||||
* enable system power monitor PSYS function
|
||||
*/
|
||||
if (!raw_read16(ISL9237_REG_CONTROL1, &val)) {
|
||||
val |= ISL9237_C1_ENABLE_PSYS;
|
||||
raw_write16(ISL9237_REG_CONTROL1, val);
|
||||
if (!raw_read16(ISL923X_REG_CONTROL1, &val)) {
|
||||
val |= ISL923X_C1_ENABLE_PSYS;
|
||||
raw_write16(ISL923X_REG_CONTROL1, val);
|
||||
}
|
||||
}
|
||||
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, charger_enable_psys, HOOK_PRIO_DEFAULT);
|
||||
@@ -362,14 +373,15 @@ static void charger_disable_psys(void)
|
||||
/*
|
||||
* disable system power monitor PSYS function
|
||||
*/
|
||||
if (!raw_read16(ISL9237_REG_CONTROL1, &val)) {
|
||||
val &= ~ISL9237_C1_ENABLE_PSYS;
|
||||
raw_write16(ISL9237_REG_CONTROL1, val);
|
||||
if (!raw_read16(ISL923X_REG_CONTROL1, &val)) {
|
||||
val &= ~ISL923X_C1_ENABLE_PSYS;
|
||||
raw_write16(ISL923X_REG_CONTROL1, val);
|
||||
}
|
||||
}
|
||||
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, charger_disable_psys, HOOK_PRIO_DEFAULT);
|
||||
|
||||
#ifdef CONFIG_CMD_CHARGER_PSYS
|
||||
/* TODO(crosbug.com/p/61166): This dead code is ISL9237-specific. */
|
||||
#define PSYS_ADC_READ_COUNT 100
|
||||
static int charger_get_system_power(void)
|
||||
{
|
||||
@@ -378,7 +390,7 @@ static int charger_get_system_power(void)
|
||||
int ret;
|
||||
int val;
|
||||
|
||||
ret = raw_read16(ISL9237_REG_CONTROL2, &val);
|
||||
ret = raw_read16(ISL923X_REG_CONTROL2, &val);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@@ -397,11 +409,11 @@ static int charger_get_system_power(void)
|
||||
*
|
||||
* Do not divide the constants first to ensure precision is not lost.
|
||||
*/
|
||||
if (val & ISL9237_C2_PSYS_GAIN)
|
||||
return ((adc * ISL9237_C2_PSYS_GAIN_0_36) /
|
||||
if (val & ISL923X_C2_PSYS_GAIN)
|
||||
return ((adc * ISL923X_C2_PSYS_GAIN_0_36) /
|
||||
PSYS_ADC_READ_COUNT);
|
||||
else
|
||||
return ((adc * ISL9237_C2_PSYS_GAIN_1_44) /
|
||||
return ((adc * ISL923X_C2_PSYS_GAIN_1_44) /
|
||||
PSYS_ADC_READ_COUNT);
|
||||
}
|
||||
|
||||
@@ -425,17 +437,17 @@ static int console_command_amon_bmon(int argc, char **argv)
|
||||
int adc, curr, val, ret;
|
||||
|
||||
ret = i2c_read16(I2C_PORT_CHARGER, I2C_ADDR_CHARGER,
|
||||
ISL9237_REG_CONTROL1, &val);
|
||||
ISL923X_REG_CONTROL1, &val);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Enable monitor */
|
||||
val &= ~ISL9237_C1_DISABLE_MON;
|
||||
val &= ~ISL923X_C1_DISABLE_MON;
|
||||
if (argc == 1 || (argc >= 2 && argv[1][0] == 'a')) {
|
||||
/* Switch to AMON */
|
||||
val &= ~ISL9237_C1_SELECT_BMON;
|
||||
val &= ~ISL923X_C1_SELECT_BMON;
|
||||
ret = i2c_write16(I2C_PORT_CHARGER, I2C_ADDR_CHARGER,
|
||||
ISL9237_REG_CONTROL1, val);
|
||||
ISL923X_REG_CONTROL1, val);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@@ -446,9 +458,9 @@ static int console_command_amon_bmon(int argc, char **argv)
|
||||
|
||||
if (argc == 1 || (argc >= 2 && argv[1][0] == 'b')) {
|
||||
/* Switch to BMON */
|
||||
val |= ISL9237_C1_SELECT_BMON;
|
||||
val |= ISL923X_C1_SELECT_BMON;
|
||||
ret = i2c_write16(I2C_PORT_CHARGER, I2C_ADDR_CHARGER,
|
||||
ISL9237_REG_CONTROL1, val);
|
||||
ISL923X_REG_CONTROL1, val);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
264
driver/charger/isl923x.h
Normal file
264
driver/charger/isl923x.h
Normal file
@@ -0,0 +1,264 @@
|
||||
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
|
||||
* Use of this source code is governed by a BSD-style license that can be
|
||||
* found in the LICENSE file.
|
||||
*
|
||||
* Intersil ISL-9237/8 battery charger driver.
|
||||
*/
|
||||
|
||||
#ifndef __CROS_EC_ISL923X_H
|
||||
#define __CROS_EC_ISL923X_H
|
||||
|
||||
#define ISL923X_ADDR 0x12 /* 7bit address 0001001 */
|
||||
|
||||
/* Registers */
|
||||
#define ISL923X_REG_CHG_CURRENT 0x14
|
||||
#define ISL923X_REG_ADAPTER_CURRENT1 0x3f
|
||||
#define ISL923X_REG_ADAPTER_CURRENT2 0x3b
|
||||
#define ISL923X_REG_SYS_VOLTAGE_MAX 0x15
|
||||
#define ISL923X_REG_SYS_VOLTAGE_MIN 0x3e
|
||||
#define ISL923X_REG_PROCHOT_AC 0x47
|
||||
#define ISL923X_REG_PROCHOT_DC 0x48
|
||||
#define ISL923X_REG_T1_T2 0x38
|
||||
#define ISL923X_REG_CONTROL0 0x39
|
||||
#define ISL923X_REG_CONTROL1 0x3c
|
||||
#define ISL923X_REG_CONTROL2 0x3d
|
||||
#define ISL9238_REG_CONTROL3 0x4c
|
||||
#define ISL9238_REG_CONTROL4 0x4e
|
||||
#define ISL923X_REG_INFO 0x3a
|
||||
#define ISL9238_REG_INFO2 0x4d
|
||||
#define ISL923X_REG_OTG_VOLTAGE 0x49
|
||||
#define ISL923X_REG_OTG_CURRENT 0x4a
|
||||
#define ISL9238_REG_INPUT_VOLTAGE 0x4b
|
||||
#define ISL923X_REG_MANUFACTURER_ID 0xfe
|
||||
#define ISL923X_REG_DEVICE_ID 0xff
|
||||
|
||||
/* Sense resistor default values in mOhm */
|
||||
#define ISL923X_DEFAULT_SENSE_RESISTOR_AC 20
|
||||
#define ISL923X_DEFAULT_SENSE_RESISTOR 10
|
||||
|
||||
/* Maximum charging current register value */
|
||||
#define ISL923X_CURRENT_REG_MAX 0x17c0 /* bit<12:2> 10111110000 */
|
||||
|
||||
/* 2-level adpater current limit duration T1 & T2 in micro seconds */
|
||||
#define ISL923X_T1_10000 0x00
|
||||
#define ISL923X_T1_20000 0x01
|
||||
#define ISL923X_T1_15000 0x02
|
||||
#define ISL923X_T1_5000 0x03
|
||||
#define ISL923X_T1_1000 0x04
|
||||
#define ISL923X_T1_500 0x05
|
||||
#define ISL923X_T1_100 0x06
|
||||
#define ISL923X_T1_0 0x07
|
||||
#define ISL923X_T2_10 (0x00 << 8)
|
||||
#define ISL923X_T2_100 (0x01 << 8)
|
||||
#define ISL923X_T2_500 (0x02 << 8)
|
||||
#define ISL923X_T2_1000 (0x03 << 8)
|
||||
#define ISL923X_T2_300 (0x04 << 8)
|
||||
#define ISL923X_T2_750 (0x05 << 8)
|
||||
#define ISL923X_T2_2000 (0x06 << 8)
|
||||
#define ISL923X_T2_10000 (0x07 << 8)
|
||||
|
||||
#define ISL9237_SYS_VOLTAGE_REG_MAX 13824
|
||||
#define ISL9238_SYS_VOLTAGE_REG_MAX 18304
|
||||
#define ISL923X_SYS_VOLTAGE_REG_MIN 2048
|
||||
|
||||
/* PROCHOT# debounce time and duration time in micro seconds */
|
||||
#define ISL923X_PROCHOT_DURATION_10000 (0 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_20000 (1 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_15000 (2 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_5000 (3 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_1000 (4 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_500 (5 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_100000 (6 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_0 (7 << 6)
|
||||
#define ISL923X_PROCHOT_DURATION_MASK (7 << 6)
|
||||
|
||||
#define ISL923X_PROCHOT_DEBOUNCE_10 (0 << 9)
|
||||
#define ISL923X_PROCHOT_DEBOUNCE_100 (1 << 9)
|
||||
#define ISL923X_PROCHOT_DEBOUNCE_500 (2 << 9)
|
||||
#define ISL923X_PROCHOT_DEBOUNCE_1000 (3 << 9)
|
||||
#define ISL923X_PROCHOT_DEBOUNCE_MASK (3 << 9)
|
||||
|
||||
/* Maximum PROCHOT register value */
|
||||
#define ISL923X_PROCHOT_AC_REG_MAX 6400
|
||||
#define ISL923X_PROCHOT_DC_REG_MAX 12800
|
||||
|
||||
/* Control0: adapter voltage regulation reference */
|
||||
#define ISL9237_C0_VREG_REF_3900 0
|
||||
#define ISL9237_C0_VREG_REF_4200 1
|
||||
#define ISL9237_C0_VREG_REF_4500 2
|
||||
#define ISL9237_C0_VREG_REF_4800 3
|
||||
#define ISL9237_C0_VREG_REF_MASK 0x03
|
||||
|
||||
/* Control0: disable adapter voltaqe regulation */
|
||||
#define ISL923X_C0_DISABLE_VREG (1 << 2)
|
||||
|
||||
/* Control0: battery DCHOT reference for RS2 == 20mOhm */
|
||||
#define ISL923X_C0_DCHOT_6A (0 << 3)
|
||||
#define ISL923X_C0_DCHOT_5A (1 << 3)
|
||||
#define ISL923X_C0_DCHOT_4A (2 << 3)
|
||||
#define ISL923X_C0_DCHOT_3A (3 << 3)
|
||||
#define ISL923X_C0_DCHOT_MASK (3 << 3)
|
||||
|
||||
/* Control1: general purpose comparator debounce time in micro second */
|
||||
#define ISL923X_C1_GP_DEBOUNCE_2 (0 << 14)
|
||||
#define ISL923X_C1_GP_DEBOUNCE_12 (1 << 14)
|
||||
#define ISL923X_C1_GP_DEBOUNCE_2000 (2 << 14)
|
||||
#define ISL923X_C1_GP_DEBOUNCE_5000000 (3 << 14)
|
||||
#define ISL923X_C1_GP_DEBOUNCE_MASK (3 << 14)
|
||||
|
||||
/* Control1: learn mode */
|
||||
#define ISL923X_C1_LEARN_MODE_AUTOEXIT (1 << 13)
|
||||
#define ISL923X_C1_LEARN_MODE_ENABLE (1 << 12)
|
||||
|
||||
/* Control1: OTG enable */
|
||||
#define ISL923X_C1_OTG (1 << 11)
|
||||
|
||||
/* Control1: audio filter */
|
||||
#define ISL923X_C1_AUDIO_FILTER (1 << 10)
|
||||
|
||||
/* Control1: switch frequency, ISL9238 defines bit 7 as unused */
|
||||
#define ISL923X_C1_SWITCH_FREQ_PROG (0 << 7) /* 1000kHz or PROG */
|
||||
#define ISL9237_C1_SWITCH_FREQ_913K (1 << 7)
|
||||
#define ISL923X_C1_SWITCH_FREQ_839K (2 << 7)
|
||||
#define ISL9237_C1_SWITCH_FREQ_777K (3 << 7)
|
||||
#define ISL923X_C1_SWITCH_FREQ_723K (4 << 7)
|
||||
#define ISL9237_C1_SWITCH_FREQ_676K (5 << 7)
|
||||
#define ISL923X_C1_SWITCH_FREQ_635K (6 << 7)
|
||||
#define ISL9237_C1_SWITCH_FREQ_599K (7 << 7)
|
||||
#define ISL923X_C1_SWITCH_FREQ_MASK (7 << 7)
|
||||
|
||||
/* Control1: turbo mode */
|
||||
#define ISL923X_C1_TURBO_MODE (1 << 6)
|
||||
|
||||
/* Control1: AMON & BMON */
|
||||
#define ISL923X_C1_DISABLE_MON (1 << 5)
|
||||
#define ISL923X_C1_SELECT_BMON (1 << 4)
|
||||
|
||||
/* Control1: PSYS, VSYS, VSYSLO */
|
||||
#define ISL923X_C1_ENABLE_PSYS (1 << 3)
|
||||
#define ISL923X_C1_ENABLE_VSYS (1 << 2)
|
||||
#define ISL923X_C1_VSYSLO_REF_6000 0
|
||||
#define ISL923X_C1_VSYSLO_REF_6300 1
|
||||
#define ISL923X_C1_VSYSLO_REF_6600 2
|
||||
#define ISL923X_C1_VSYSLO_REF_6900 3
|
||||
#define ISL923X_C1_VSYSLO_REF_MASK 3
|
||||
|
||||
/* Control2: trickle charging current in mA */
|
||||
#define ISL923X_C2_TRICKLE_256 (0 << 14)
|
||||
#define ISL923X_C2_TRICKLE_128 (1 << 14)
|
||||
#define ISL923X_C2_TRICKLE_64 (2 << 14)
|
||||
#define ISL923X_C2_TRICKLE_512 (3 << 14)
|
||||
#define ISL923X_C2_TRICKLE_MASK (3 << 14)
|
||||
|
||||
/* Control2: OTGEN debounce time in ms */
|
||||
#define ISL923X_C2_OTG_DEBOUNCE_1300 (0 << 13)
|
||||
#define ISL923X_C2_OTG_DEBOUNCE_150 (1 << 13)
|
||||
#define ISL923X_C2_OTG_DEBOUNCE_MASK (1 << 13)
|
||||
|
||||
/* Control2: 2-level adapter over current */
|
||||
#define ISL923X_C2_2LVL_OVERCURRENT (1 << 12)
|
||||
|
||||
/* Control2: adapter insertion debounce time in ms */
|
||||
#define ISL923X_C2_ADAPTER_DEBOUNCE_1300 (0 << 11)
|
||||
#define ISL923X_C2_ADAPTER_DEBOUNCE_150 (1 << 11)
|
||||
#define ISL923X_C2_ADAPTER_DEBOUNCE_MASK (1 << 11)
|
||||
|
||||
/* Control2: PROCHOT debounce time in uS */
|
||||
#define ISL9238_C2_PROCHOT_DEBOUNCE_7 (0 << 9)
|
||||
#define ISL9237_C2_PROCHOT_DEBOUNCE_10 (0 << 9)
|
||||
#define ISL923X_C2_PROCHOT_DEBOUNCE_100 (1 << 9)
|
||||
#define ISL923X_C2_PROCHOT_DEBOUNCE_500 (2 << 9)
|
||||
#define ISL923X_C2_PROCHOT_DEBOUNCE_1000 (3 << 9)
|
||||
#define ISL923X_C2_PROCHOT_DEBOUNCE_MASK (3 << 9)
|
||||
|
||||
/* Control2: min PROCHOT duration in uS */
|
||||
#define ISL923X_C2_PROCHOT_DURATION_10000 (0 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_20000 (1 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_15000 (2 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_5000 (3 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_1000 (4 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_500 (5 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_100 (6 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_0 (7 << 6)
|
||||
#define ISL923X_C2_PROCHOT_DURATION_MASK (7 << 6)
|
||||
|
||||
/* Control2: turn off ASGATE in OTG mode */
|
||||
#define ISL923X_C2_ASGATE_OFF (1 << 5)
|
||||
|
||||
/* Control2: CMIN, general purpose comparator reference in mV */
|
||||
#define ISL923X_C2_CMIN_2000 (0 << 4)
|
||||
#define ISL923X_C2_CMIN_1200 (1 << 4)
|
||||
|
||||
/* Control2: general purpose comparator enable */
|
||||
#define ISL923X_C2_COMPARATOR (1 << 3)
|
||||
|
||||
/* Control2: invert CMOUT, general purpose comparator output, polarity */
|
||||
#define ISL923X_C2_INVERT_CMOUT (1 << 2)
|
||||
|
||||
/* Control2: disable WOC, way over current */
|
||||
#define ISL923X_C2_WOC_OFF (1 << 1)
|
||||
|
||||
/* Control2: PSYS gain in uA/W (ISL9237 only) */
|
||||
#define ISL9237_C2_PSYS_GAIN (1 << 0)
|
||||
|
||||
/* Control2: PSYS gain in uA/W (ISL9238 only) */
|
||||
#define ISL9238_C3_PSYS_GAIN (1 << 9)
|
||||
|
||||
/* OTG voltage limit in mV, current limit in mA */
|
||||
#define ISL923X_OTG_VOLTAGE_MIN 4864
|
||||
#define ISL923X_OTG_VOLTAGE_MAX 5376
|
||||
#define ISL923X_OTG_CURRENT_MAX 4096
|
||||
|
||||
/* Info register fields */
|
||||
#define ISL9237_INFO_PROG_RESISTOR_MASK 0xf
|
||||
#define ISL923X_INFO_TRICKLE_ACTIVE_MASK (1 << 4)
|
||||
#define ISL9237_INFO_PSTATE_SHIFT 5
|
||||
#define ISL9237_INFO_PSTATE_MASK 3
|
||||
|
||||
enum isl9237_power_stage {
|
||||
BUCK_MODE,
|
||||
BOOST_MODE,
|
||||
BUCK_BOOST_MODE,
|
||||
REVERSE_BUCK_MODE
|
||||
};
|
||||
|
||||
#define ISL9237_INFO_FSM_STATE_SHIFT 7
|
||||
#define ISL9237_INFO_FSM_STATE_MASK 7
|
||||
|
||||
enum isl9237_fsm_state {
|
||||
FSM_OFF,
|
||||
FSM_BAT,
|
||||
FSM_ADPT,
|
||||
FSM_ACOK,
|
||||
FSM_VSYS,
|
||||
FSM_CHRG,
|
||||
FSM_ENTOG,
|
||||
FSM_OTG
|
||||
};
|
||||
|
||||
#define ISL923X_INFO_VSYSLO (1 << 10)
|
||||
#define ISL923X_INFO_DCHOT (1 << 11)
|
||||
#define ISL9237_INFO_ACHOT (1 << 12)
|
||||
|
||||
#if defined(CONFIG_CHARGER_ISL9237)
|
||||
#define CHARGER_NAME "isl9237"
|
||||
#define CHARGE_V_MAX ISL9237_SYS_VOLTAGE_REG_MAX
|
||||
#define CHARGE_V_MIN ISL923X_SYS_VOLTAGE_REG_MIN
|
||||
#define CHARGE_V_STEP 8
|
||||
#elif defined(CONFIG_CHARGER_ISL9238)
|
||||
#define CHARGER_NAME "isl9238"
|
||||
#define CHARGE_V_MAX ISL9238_SYS_VOLTAGE_REG_MAX
|
||||
#define CHARGE_V_MIN ISL923X_SYS_VOLTAGE_REG_MIN
|
||||
#define CHARGE_V_STEP 8
|
||||
#endif
|
||||
|
||||
#define CHARGE_I_MAX ISL923X_CURRENT_REG_MAX
|
||||
#define CHARGE_I_MIN 4
|
||||
#define CHARGE_I_OFF 0
|
||||
#define CHARGE_I_STEP 4
|
||||
#define INPUT_I_MAX ISL923X_CURRENT_REG_MAX
|
||||
#define INPUT_I_MIN 4
|
||||
#define INPUT_I_STEP 4
|
||||
|
||||
#define I2C_ADDR_CHARGER ISL923X_ADDR
|
||||
#endif /* __CROS_EC_ISL923X_H */
|
||||
@@ -390,6 +390,7 @@
|
||||
#undef CONFIG_CHARGER_BQ25892
|
||||
#undef CONFIG_CHARGER_BQ25895
|
||||
#undef CONFIG_CHARGER_ISL9237
|
||||
#undef CONFIG_CHARGER_ISL9238
|
||||
#undef CONFIG_CHARGER_TPS65090 /* Note: does not use CONFIG_CHARGER */
|
||||
|
||||
/*
|
||||
|
||||
Reference in New Issue
Block a user