48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
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/* Copyright 2016 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 "util.h"
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/* Shutdown mode parameter to write to manufacturer access register */
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#define SB_SHIP_MODE_REG 0x3a
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#define SB_SHUTDOWN_DATA 0xC574
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static const struct battery_info info = {
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.voltage_max = 13200,
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.voltage_normal = 11550,
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.voltage_min = 9100,
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/* Pre-charge values. */
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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 = 0,
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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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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_SHIP_MODE_REG, 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_SHIP_MODE_REG, SB_SHUTDOWN_DATA);
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}
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