82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/* Copyright 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.
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*/
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#include "battery.h"
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#include "battery_smart.h"
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#include "common.h"
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#include "console.h"
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#include "test_util.h"
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#include "util.h"
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static uint16_t mock_smart_battery[SB_MANUFACTURER_DATA + 1];
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int sb_i2c_xfer(int port, int slave_addr, const uint8_t *out, int out_size,
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uint8_t *in, int in_size, int flags)
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{
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if (out_size == 0)
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return EC_SUCCESS;
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if (port != I2C_PORT_BATTERY || slave_addr != BATTERY_ADDR)
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return EC_ERROR_INVAL;
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if (out[0] >= ARRAY_SIZE(mock_smart_battery))
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return EC_ERROR_UNIMPLEMENTED;
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if (out_size == 1) {
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/* Read */
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if (in_size != 2)
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/* We are not doing a read16, assume read string */
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return EC_SUCCESS;
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else
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*(uint16_t *)in = mock_smart_battery[out[0]];
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} else {
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/* write */
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if (out_size != 3)
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/* We are only expecting write 16 */
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return EC_ERROR_UNIMPLEMENTED;
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else
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mock_smart_battery[out[0]] = (out[2] << 8) | out[1];
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}
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return EC_SUCCESS;
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}
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DECLARE_TEST_I2C_XFER(sb_i2c_xfer);
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int battery_time_at_rate(int rate, int *minutes)
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{
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return EC_SUCCESS;
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}
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static const struct battery_info bat_info = {
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/*
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* Design voltage
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* max = 8.4V
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* normal = 7.4V
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* min = 6.0V
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*/
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.voltage_max = 8400,
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.voltage_normal = 7400,
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.voltage_min = 6000,
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/* Pre-charge current: I <= 0.01C */
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.precharge_current = 64, /* mA */
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/*
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* Operational temperature range
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* 0 <= T_charge <= 50 deg C
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* -20 <= T_discharge <= 60 deg C
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*/
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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 = 50,
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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 &bat_info;
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}
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