// Copyright 2020-2021 Beken
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <soc/soc.h>
#include "hal_port.h"
#include "wdt_hw.h"
#include <driver/hal/hal_wdt_types.h>
#include "sys_hal.h"

#ifdef __cplusplus
extern "C" {
#endif

#define WDT_LL_REG_BASE(_wdt_unit_id)    (SOC_WDT_REG_BASE)

static inline void wdt_ll_reset_config_to_default(wdt_hw_t *hw)
{
	hw->ctrl.key = 0;
	hw->ctrl.period = WDT_V_PERIOD_DEFAULT_VALUE;
}

static inline void wdt_ll_init(wdt_hw_t *hw)
{

}

static inline void wdt_ll_set_1st_key(wdt_hw_t *hw)
{
	hw->ctrl.key = WDT_V_KEY_1ST;
}

static inline void wdt_ll_set_2nd_key(wdt_hw_t *hw)
{
	hw->ctrl.key = WDT_V_KEY_2ND;
}

static inline void wdt_ll_set_period(wdt_hw_t *hw, uint32_t period)
{
#if CONFIG_NMI_WDT_EN
	uint32_t nmi_wdt_clk_div = sys_hal_nmi_wdt_get_clk_div();

	uint32_t multi = 1;
	switch(nmi_wdt_clk_div) {
	case 0:  //wdt_clk = src_clk/2
		multi = 16;
		break;
	case 1:  //wdt_clk = src_clk/4
		multi = 8;
		break;
	case 2:  //wdt_clk = src_clk/8
		multi = 4;
		break;
	case 3:  //wdt_clk = src_clk/16
		multi = 2;
		break;
	default:
		multi = 1;
		break;
	}

	period = period * multi;
	if (period > WDT_F_PERIOD_M) {
		period = WDT_F_PERIOD_M;
	}
#endif

	hw->global_ctrl.soft_reset = 1;

	uint32_t ctrl_val = (period & WDT_F_PERIOD_M) | (WDT_V_KEY_1ST << WDT_F_KEY_S);
	REG_WRITE(WDT_R_CTRL, ctrl_val);

	ctrl_val = (period & WDT_F_PERIOD_M) | (WDT_V_KEY_2ND << WDT_F_KEY_S);
	REG_WRITE(WDT_R_CTRL, ctrl_val);
}

#ifdef __cplusplus
}
#endif