/*
 * The implementation of our external API functions lives here.
 */

#include "fchg/fchg_api.h"
#include "fchg/fchg_env.h"
#include "fchg/fchg_messages.h"
#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_use_id_list.h"

T_RV_RET fchg_get_current_state(struct fchg_user_state *rstruct)
{
	UINT16 curr_disch_thresh;
	INT16 ichg_temp;

	if (!pwr_ctrl)
		return RV_NOT_READY;
	rstruct->chg_state = pwr_ctrl->state;
	rstruct->batt_mv = pwr_ctrl->batt_mv;
	curr_disch_thresh = pwr_ctrl->curr_disch_thresh;
	rstruct->batt_percent =
	    pwr_ctrl->batt.percent_thresh[curr_disch_thresh].remain_capa;
	switch (rstruct->chg_state) {
	case FCHG_STATE_CI_CHARGING:
		ichg_temp = pwr_ctrl->ci_ichg - pwr_ctrl->i2v_offset;
		if (ichg_temp < 0)
			ichg_temp = 0;
		rstruct->ichg = ichg_temp;
		rstruct->batt_bars = FCHG_BATT_BARS_CHARGING;
		break;
	case FCHG_STATE_CV_CHARGING:
		ichg_temp = pwr_ctrl->ichg_average - pwr_ctrl->i2v_offset;
		if (ichg_temp < 0)
			ichg_temp = 0;
		rstruct->ichg = ichg_temp;
		rstruct->batt_bars = FCHG_BATT_BARS_CHARGING;
		break;
	default:
		rstruct->ichg = 0;
		if (curr_disch_thresh <= pwr_ctrl->batt.bars_thresh[0])
			rstruct->batt_bars = 4;
		else if (curr_disch_thresh <= pwr_ctrl->batt.bars_thresh[1])
			rstruct->batt_bars = 3;
		else if (curr_disch_thresh <= pwr_ctrl->batt.bars_thresh[2])
			rstruct->batt_bars = 2;
		else if (curr_disch_thresh <= pwr_ctrl->batt.bars_thresh[3])
			rstruct->batt_bars = 1;
		else
			rstruct->batt_bars = 0;
	}
	return RV_OK;
}

T_RV_RET fchg_user_charge_control(enum fchg_user_charge_ctrl arg)
{
	enum pwr_msg_id msg_id;
	struct pwr_req_s *msg;

	if (!pwr_ctrl)
		return RV_NOT_READY;
	switch (arg) {
	case FCHG_CHARGE_START:
		if (!pwr_ctrl->config_present)
			return RV_NOT_READY;
		msg_id = USER_START_CHARGE_REQ;
		break;
	case FCHG_CHARGE_STOP:
		msg_id = USER_STOP_CHARGE_REQ;
		break;
	default:
		return RV_INVALID_PARAMETER;
	}
	if (rvf_get_buf(pwr_ctrl->prim_id, sizeof(struct pwr_req_s),
			(T_RVF_BUFFER **)&msg) == RVF_RED) {
		rvf_send_trace(
			"rvf_get_buf() failed in fchg_user_charge_control()",
			50, NULL_PARAM, RV_TRACE_LEVEL_ERROR, FCHG_USE_ID);
		return RV_MEMORY_ERR;
	}
	msg->header.msg_id        = msg_id;
	msg->header.src_addr_id   = pwr_ctrl->addr_id;
	msg->header.dest_addr_id  = pwr_ctrl->addr_id;
	msg->header.callback_func = NULL;
	if (rvf_send_msg(pwr_ctrl->addr_id, msg) != RV_OK) {
		rvf_send_trace("fchg_user_charge_control(): Send failed!", 40,
				NULL_PARAM, RV_TRACE_LEVEL_ERROR, FCHG_USE_ID);
		rvf_free_buf(msg);
		return RV_INTERNAL_ERR;
	}
	return RV_OK;
}

T_RV_RET fchg_register_event_handler(T_FCHG_EVENT_HANDLER handler)
{
	if (!pwr_ctrl)
		return RV_NOT_READY;
	pwr_ctrl->event_handler = handler;
	return RV_OK;
}