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/*
* arch/arm/mach-tegra/include/mach/usb_phy.h
*
* Copyright (C) 2010 Google, Inc.
* Copyright (C) 2011 NVIDIA Corporation.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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 __MACH_USB_PHY_H
#define __MACH_USB_PHY_H
/**
* Tegra USB phy opaque handle
*/
struct tegra_usb_phy;
/**
* Opens the usb phy associated to the USB platform device
* tegra usb phy open must be called before accessing any phy APIs
*/
struct tegra_usb_phy *tegra_usb_phy_open(struct platform_device *pdev);
/**
* Closes the phy controller and its resources
*/
void tegra_usb_phy_close(struct tegra_usb_phy *phy);
/**
* Handles interrupts specific to the phy interface
* Note: udc or ehci driver will handle the controller interrupts
*/
int tegra_usb_phy_irq(struct tegra_usb_phy *phy);
/**
* Initializes the phy specific functions after phy is power on
*/
int tegra_usb_phy_init(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality after driver reset
*/
int tegra_usb_phy_reset(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality before driver suspend
* Also, handles platform specific pre suspend functions
*/
int tegra_usb_phy_pre_suspend(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific suspend functionality
*/
int tegra_usb_phy_suspend(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality after driver suspend
*/
int tegra_usb_phy_post_suspend(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality before driver resume
* Also, handles platform specific pre resume functions
*/
int tegra_usb_phy_pre_resume(struct tegra_usb_phy *phy, bool remote_wakeup);
/**
* Handles phy interface specific resume functionality
*/
int tegra_usb_phy_resume(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality after driver resume
*/
int tegra_usb_phy_post_resume(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality during port power on
*/
int tegra_usb_phy_port_power(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality during bus reset
*/
int tegra_usb_phy_bus_reset(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality for turning off the phy to
* put the phy in low power mode
*/
int tegra_usb_phy_power_off(struct tegra_usb_phy *phy);
/**
* Handles phy interface specific functionality for turning on the phy to
* bring phy out of low power mode
*/
int tegra_usb_phy_power_on(struct tegra_usb_phy *phy);
/**
* Indicates whether phy registers are accessible or not
* if phy is powered off then returns false else true
*/
bool tegra_usb_phy_hw_accessible(struct tegra_usb_phy *phy);
/**
* Indicates whether compliance charger is connected or not
* if compliance charger is detected then returns true else false
*/
bool tegra_usb_phy_charger_detected(struct tegra_usb_phy *phy);
/**
* Indicates whether phy resumed due to the remote wake event or not
* returns true if remote wake is detected.
*/
bool tegra_usb_phy_remote_wakeup(struct tegra_usb_phy *phy);
/**
* Indicates controller has HOST PC register set or not
*/
bool tegra_usb_phy_has_hostpc(struct tegra_usb_phy *phy);
/**
* Indicates controller port supports OTG or not
*/
bool tegra_usb_phy_otg_supported(struct tegra_usb_phy *phy);
void tegra_usb_phy_memory_prefetch_on(struct tegra_usb_phy *phy);
void tegra_usb_phy_memory_prefetch_off(struct tegra_usb_phy *phy);
#endif /* __MACH_USB_PHY_H */
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