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https://github.com/Telecominfraproject/OpenCellular.git
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1178484e0e
Changes made by this patch: 1. Create IRQ handler for the TPS65090 IRQ. IRQ wakes up charger task. 2. Charger task sets the AC_STATUS GPIO based on the AC status. 3. Initialize PMU at power-on. BRANCH=snow BUG=chrome-os-partner:11739 TEST=Power on the system, with servo v2 connected to EC console. Plug and unplug AC. The IRQ handler should be triggered. Change-Id: Ice23411c275111fdb56d2c47ba28c3c44dee4d71 Signed-off-by: Simon Que <sque@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/29914 Commit-Ready: Rong Chang <rongchang@chromium.org> Reviewed-by: Rong Chang <rongchang@chromium.org> Tested-by: Rong Chang <rongchang@chromium.org>
164 lines
3.9 KiB
C
164 lines
3.9 KiB
C
/* Copyright (c) 2012 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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* TPSChrome PMU APIs.
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*/
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#ifndef __CROS_EC_TPSCHROME_H
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#define __CROS_EC_TPSCHROME_H
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#include "gpio.h"
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enum TPS_TEMPERATURE_RANGE {
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RANGE_T01,
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RANGE_T12, /* low charging temperature range */
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RANGE_T23, /* standard charging temperature range */
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RANGE_T34, /* high charging temperature range */
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RANGE_T40,
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};
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/* Termination voltage */
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enum TPS_TERMINATION_VOLTAGE {
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TERM_V2000, /* 2.000 V */
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TERM_V2050, /* 2.050 V */
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TERM_V2075, /* 2.075 V */
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TERM_V2100, /* 2.100 V */
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};
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/* Termination current */
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enum TPS_TERMINATION_CURRENT {
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TERM_I0000, /* 0 % */
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TERM_I0250, /* 25 % */
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TERM_I0375, /* 37.5 % */
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TERM_I0500, /* 50 % */
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TERM_I0625, /* 62.5 % */
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TERM_I0750, /* 75 % */
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TERM_I0875, /* 87.5 % */
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TERM_I1000, /* 100 % */
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};
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#define FET_BACKLIGHT 1
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#define FET_LCD_PANEL 6
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/**
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* Clear tps65090 IRQ register
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*
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* @return return EC_SUCCESS on success, err code otherwise
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*/
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int pmu_clear_irq(void);
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/**
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* Read pmu register
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*
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* @param reg register offset
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* @param value pointer to output value
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* @return return EC_SUCCESS on success, err code otherwise
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*/
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int pmu_read(int reg, int *value);
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/**
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* Write pmu register
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*
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* @param reg register offset
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* @param value new register value
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* @return return EC_SUCCESS on success, err code otherwise
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*/
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int pmu_write(int reg, int value);
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/**
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* Read tpschrome version
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*
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* @param version output tpschrome version info
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*/
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int pmu_version(int *version);
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/**
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* Check pmu charger alarm
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*
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* @return 0 if there's no charging alarm or pmu access failed
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* @return 1 if charger over current or over heat
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*/
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int pmu_is_charger_alarm(void);
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/**
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* Get pmu power source
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*
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* @param ac_good pointer to output value of ac voltage good
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* @param battery_good pointer to output value of battery voltage good
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* @return EC_SUCCESS if ac_good and battery_good are set
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*/
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int pmu_get_power_source(int *ac_good, int *battery_good);
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/**
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* Enable/disable pmu fet
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*
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* @param fet_id the fet to control
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* @param enable 0 to disable the fet, 1 to enable
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* @param power_good pointer to value of fet power good
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* @return EC_SUCCESS if the communication to pmu succeeded
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*/
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int pmu_enable_fet(int fet_id, int enable, int *power_good);
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/**
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* Enable/disable pmu internal charger
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*
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* @param enable 0 to disable the charger, 1 to enable
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* @return EC_SUCCESS if no I2C communication error
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*/
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int pmu_enable_charger(int enable);
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/**
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* Set termination current for temperature ranges
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*
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* @param range T01 T12 T23 T34 T40
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* @param current enum termination current, I0250 == 25.0%:
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* I0000 I0250 I0375 I0500 I0625 I0750 I0875 I1000
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*/
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int pmu_set_term_current(enum TPS_TEMPERATURE_RANGE range,
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enum TPS_TERMINATION_CURRENT current);
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/**
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* Set termination voltage for temperature ranges
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*
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* @param range T01 T12 T23 T34 T40
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* @param voltage enum termination voltage, V2050 == 2.05V:
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* V2000 V2050 V2075 V2100
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*/
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int pmu_set_term_voltage(enum TPS_TEMPERATURE_RANGE range,
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enum TPS_TERMINATION_VOLTAGE voltage);
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/**
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* Enable low current charging
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*
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* @param enable enable/disable low current charging
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*/
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int pmu_low_current_charging(int enable);
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/**
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* Handles interrupts from tpschrome
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*
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* @param signal Indicates signal type.
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*/
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void pmu_irq_handler(enum gpio_signal signal);
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/**
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* Get AC state through GPIO
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*
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* @return 0 AC off
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* @return 1 AC on
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*
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* TODO: This is a board specific function, should be moved to
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* system_common.c or board.c
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*/
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int pmu_get_ac(void);
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/**
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* * Initialize pmu
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* */
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void pmu_init(void);
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#endif /* __CROS_EC_TPSCHROME_H */
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