/* gpio_sch.h - Descriptions of registers for Intel SCH GPIO controller */

/*
 * Copyright (c) 2015 Intel Corporation.
 *
 * SPDX-License-Identifier: Apache-2.0
 */


#ifndef ZEPHYR_DRIVERS_GPIO_GPIO_SCH_H_
#define ZEPHYR_DRIVERS_GPIO_GPIO_SCH_H_

#include <zephyr/types.h>
#include <kernel.h>
#include <drivers/gpio.h>

#define GPIO_SCH_REG_GEN		(0x00)
#define GPIO_SCH_REG_GIO		(0x04)
#define GPIO_SCH_REG_GLVL		(0x08)
#define GPIO_SCH_REG_GTPE		(0x0C)
#define GPIO_SCH_REG_GTNE		(0x10)
#define GPIO_SCH_REG_GGPE		(0x14)
#define GPIO_SCH_REG_GSMI		(0x18)
#define GPIO_SCH_REG_GTS		(0x1C)

struct gpio_sch_config {
	u32_t regs;
	u8_t bits;
	u8_t stride[3];
};

#define GPIO_SCH_POLLING_STACK_SIZE 	1024
#define GPIO_SCH_POLLING_MSEC		200

struct gpio_sch_data {
	K_THREAD_STACK_MEMBER(polling_stack, GPIO_SCH_POLLING_STACK_SIZE);
	struct k_thread polling_thread;
	sys_slist_t callbacks;
	struct k_timer poll_timer;

	struct {
		u32_t gtpe;
		u32_t gtne;
	} int_regs;

	u32_t cb_enabled;
	u8_t poll;
	u8_t stride[3];
};

#endif /* ZEPHYR_DRIVERS_GPIO_GPIO_SCH_H_ */