/* Copyright 2015 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 *
 * Battery pack vendor provided charging profile
 */

#include "battery.h"
#include "battery_smart.h"
#include "charge_state.h"
#include "console.h"
#include "ec_commands.h"
#include "util.h"

/* Shutdown mode parameter to write to manufacturer access register */
#define SB_SHUTDOWN_DATA	0x0010

/* Battery info for proto */
static const struct battery_info info = {
	.voltage_max		= 13050,	/* mV */
	.voltage_normal		= 11400,
	.voltage_min		= 9000,
	.precharge_current	= 392,		/* mA */
	.start_charging_min_c	= 0,
	.start_charging_max_c	= 60,
	.charging_min_c		= 0,
	.charging_max_c		= 60,
	.discharging_min_c	= 0,
	.discharging_max_c	= 60,
};

const struct battery_info *battery_get_info(void)
{
	return &info;
}

int board_cut_off_battery(void)
{
	int rv;

	/* Ship mode command must be sent twice to take effect */
	rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
	if (rv != EC_SUCCESS)
		return EC_RES_ERROR;

	rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
	return rv ? EC_RES_ERROR : EC_RES_SUCCESS;
}

int charger_profile_override(struct charge_state_data *curr)
{
	const struct battery_info *batt_info;
	/* battery temp in 0.1 deg C */
	int bat_temp_c = curr->batt.temperature - 2731;

	batt_info = battery_get_info();
	/* Don't charge if outside of allowable temperature range */
	if (bat_temp_c >= batt_info->charging_max_c * 10 ||
	    bat_temp_c < batt_info->charging_min_c * 10) {
		curr->requested_current = 0;
		curr->requested_voltage = 0;
		curr->batt.flags &= ~BATT_FLAG_WANT_CHARGE;
		curr->state = ST_IDLE;
	}
	return 0;
}

/* Customs options controllable by host command. */
#define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 0)

enum ec_status charger_profile_override_get_param(uint32_t param,
						  uint32_t *value)
{
	return EC_RES_INVALID_PARAM;
}

enum ec_status charger_profile_override_set_param(uint32_t param,
						  uint32_t value)
{
	return EC_RES_INVALID_PARAM;
}