/* sfp_phy.h - Puma7 SoC SFP PHY Driver
 *
 * Copyright (C) 2016 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#ifndef __LINUX_SFP_PHY_H__
#define __LINUX_SFP_PHY_H__

#include <linux/acpi.h>
#include <linux/kthread.h>

#define PUMA_SFP_DEVICE_NAME	"INT3518"
#define PUMA_ACPI_NOTIFY_SFP_EVENT	0xA3
#define PUMA_SFP_CLASS		"SFP"
#define SFP_PRESENT 0
#define SFP_NOT_PRESENT 1
#define SFP_TX_ENABLE   0
#define SFP_POWER_ON    1
#define PROCESS_TXFAULT	1
#define PROCESS_LOS		1
#define PROCESS_PRESENT	1
#define PROCESS_ONAC	1
#define PROCESS_ONBAT	2

const char strs[5][15] = {
	"SFP_TxFault",
	"SFP_LOS",
	"SFP_PRESENT",
	"SFP_DISABLE",
	"SFP_POWER"
};

enum sfp_acpi_pin_idx {
	TXFAULT_IDX,
	LOS_IDX,
	PRESENT_IDX,
	DISABLE_IDX,
	POWER_IDX,
};

enum sfp_event_state {
	SFP_EVENT_AC,
	SFP_EVENT_ONBAT,
	SFP_STATE_OFF,
	SFP_STATE_ON,
	SFP_STATE_ACTIVE,
};

/* New member to be added after looking at sfp_free_resources().
 * The index order is important as it is used to free specific
 * resources.
 */
enum puma_resource_index {
	PUMA_SFP_MEM,
	PUMA_SFP_MUTEX,
	PUMA_SFP_SYSFS,
	PUMA_SFP_FREE_WQ,
	PUMA_SFP_TXFAULT_GPIO,
	PUMA_SFP_TXFAULT_IRQ,
	PUMA_SFP_LOS_GPIO,
	PUMA_SFP_LOS_IRQ,
	PUMA_SFP_PRESENT_GPIO,
	PUMA_SFP_PRESENT_IRQ,
	PUMA_SFP_TXDISABLE_GPIO,
	PUMA_SFP_POWER_GPIO,
};

/**
 * struct puma7_sfp_phy - Puma7 SFP PHY device
 * @client: points to i2c slave SFP device
 * @handle: handle to the ACPI SFP device
 */
struct puma7_sfp_phy {
	struct i2c_client *client;
	acpi_handle handle;
	int txfault_irq;
	int los_irq;
	int present_irq;
	struct gpio_desc *gpio_txfault;
	struct gpio_desc *gpio_los;
	struct gpio_desc *gpio_present;
	struct gpio_desc *gpio_tx_disable;
	struct gpio_desc *gpio_power;
	unsigned int state;
	unsigned int txfault_counter;
	unsigned int los_counter;
	atomic_t service_level_value;
	struct workqueue_struct	*work;
	struct work_struct cmd_work;
	atomic_t txfault_event;
	atomic_t los_event;
	atomic_t present_event;
	atomic_t servicelevel_event;
	struct mutex event_lock;
};

#endif /* __LINUX_SFP_PHY_H__ */