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72306c7e02
1. GPIO initial 2. board config 3. led control 4. power control of Stoney 5. battery setting BRANCH=None BUG=None TEST=power on device and test manually Change-Id: I14cc60bf2cdd40032b3cbdfacf68d7a3c17fe87c Reviewed-on: https://chromium-review.googlesource.com/461624 Commit-Ready: YH Lin <yueherngl@chromium.org> Tested-by: Lin Cloud <cloud_lin@compal.com> Tested-by: Danny Kuo <Danny_Kuo@compal.com> Reviewed-by: Danny Kuo <Danny_Kuo@compal.com> Reviewed-by: Randall Spangler <rspangler@chromium.org>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/* Copyright 2017 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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* Battery pack vendor provided charging profile
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*/
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#include "battery.h"
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#include "battery_smart.h"
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#include "extpower.h"
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#include "gpio.h"
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/* Shutdown mode parameter to write to manufacturer access register */
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#define SB_SHUTDOWN_DATA 0x0010
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static enum battery_present batt_pres_prev = BP_NOT_SURE;
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static const struct battery_info info = {
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.voltage_max = 13200,/* mV */
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.voltage_normal = 11400,
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.voltage_min = 9000,
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.precharge_current = 256,/* mA */
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.start_charging_min_c = 0,
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.start_charging_max_c = 50,
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.charging_min_c = 0,
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.charging_max_c = 60,
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.discharging_min_c = -20,
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.discharging_max_c = 70,
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};
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const struct battery_info *battery_get_info(void)
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{
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return &info;
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}
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int board_cut_off_battery(void)
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{
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int rv;
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/* Ship mode command must be sent twice to take effect */
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rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
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if (rv != EC_SUCCESS)
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return rv;
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return sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
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}
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static inline enum battery_present battery_hw_present(void)
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{
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/* The GPIO is low when the battery is physically present */
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return gpio_get_level(GPIO_EC_BATT_PRES_L) ? BP_NO : BP_YES;
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}
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static int battery_init(void)
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{
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int batt_status;
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return battery_status(&batt_status) ? 0 :
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!!(batt_status & STATUS_INITIALIZED);
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}
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/*
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* Physical detection of battery.
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*/
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enum battery_present battery_is_present(void)
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{
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enum battery_present batt_pres;
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/* Get the physical hardware status */
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batt_pres = battery_hw_present();
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/*
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* Make sure battery status is implemented, I2C transactions are
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* success & the battery status is Initialized to find out if it
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* is a working battery and it is not in the cut-off mode.
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*
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* If battery I2C fails but VBATT is high, battery is booting from
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* cut-off mode.
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*
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* FETs are turned off after Power Shutdown time.
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* The device will wake up when a voltage is applied to PACK.
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* Battery status will be inactive until it is initialized.
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*/
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if (batt_pres == BP_YES && batt_pres_prev != batt_pres &&
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!battery_is_cut_off() && !battery_init()) {
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batt_pres = BP_NO;
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}
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batt_pres_prev = batt_pres;
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return batt_pres;
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}
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