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3b0a4055d1
This allows boards to detect the battery and return the correct temp ranges, which will be needed for upcoming boards. In the board-specific implementations, it's pretty much just moving the fields from one const struct to another, so the impact is minor. BUG=chrome-os-partner:24310 BRANCH=none TEST=build all platforms; verify pit and rambi still charge Change-Id: I7be075b3abb4039577f6362316adc1860c121d5c Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/178424 Reviewed-by: Yung-chieh Lo <yjlou@chromium.org> Reviewed-by: Rong Chang <rongchang@chromium.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/* Copyright (c) 2013 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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* Smart battery driver for Spring.
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*/
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#include "battery.h"
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#include "battery_smart.h"
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#include "host_command.h"
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#include "i2c.h"
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#include "util.h"
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#define PARAM_CUT_OFF_LOW 0x10
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#define PARAM_CUT_OFF_HIGH 0x00
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/* Battery temperature ranges in degrees C */
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static const struct battery_info info = {
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.start_charging_min_c = 5,
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.start_charging_max_c = 45,
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.charging_min_c = 5,
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.charging_max_c = 60,
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.discharging_min_c = 0,
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.discharging_max_c = 100,
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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 battery_command_cut_off(struct host_cmd_handler_args *args)
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{
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int rv;
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uint8_t buf[3];
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buf[0] = SB_MANUFACTURER_ACCESS & 0xff;
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buf[1] = PARAM_CUT_OFF_LOW;
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buf[2] = PARAM_CUT_OFF_HIGH;
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i2c_lock(I2C_PORT_BATTERY, 1);
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rv = i2c_xfer(I2C_PORT_BATTERY, BATTERY_ADDR, buf, 3, NULL, 0,
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I2C_XFER_SINGLE);
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rv = i2c_xfer(I2C_PORT_BATTERY, BATTERY_ADDR, buf, 3, NULL, 0,
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I2C_XFER_SINGLE);
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i2c_lock(I2C_PORT_BATTERY, 0);
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if (rv)
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return EC_RES_ERROR;
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return 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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