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dad376eada
cutoff() returns 0 on success, not non-zero. BUG=chrome-os-partner:25646 BRANCH=rambi TEST=ectool batterycutoff succeeds Change-Id: Icca0c53aba82381b73dd679de5df3a97153d0662 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/185737 Reviewed-by: Benson Leung <bleung@chromium.org> Reviewed-by: Dave Parker <dparker@chromium.org>
69 lines
1.6 KiB
C
69 lines
1.6 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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* 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 "console.h"
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#include "gpio.h"
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#include "host_command.h"
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#include "util.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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/* 3S1P battery */
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static const struct battery_info info = {
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.voltage_max = 12600, /* mV */
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.voltage_normal = 10800,
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.voltage_min = 8250,
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/*
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* Precharge current max is 400 mA, but 384 mA is as close to that
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* as the charger can get without going over.
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*/
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.precharge_current = 384, /* mA */
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.start_charging_min_c = 10,
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.start_charging_max_c = 45,
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.charging_min_c = 10,
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.charging_max_c = 45,
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.discharging_min_c = -20,
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.discharging_max_c = 60,
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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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static int cutoff(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 int battery_command_cut_off(struct host_cmd_handler_args *args)
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{
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return cutoff() ? EC_RES_ERROR : EC_RES_SUCCESS;
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}
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DECLARE_HOST_COMMAND(EC_CMD_BATTERY_CUT_OFF, battery_command_cut_off,
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EC_VER_MASK(0));
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static int command_battcutoff(int argc, char **argv)
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{
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return cutoff();
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}
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DECLARE_CONSOLE_COMMAND(battcutoff, command_battcutoff,
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NULL,
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"Enable battery cutoff (ship mode)",
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NULL);
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