91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __TEGRA_USB_CHARGER_H
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#define __TEGRA_USB_CHARGER_H
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#include <linux/platform_device.h>
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/**
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* Tegra USB charger opaque handle
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*/
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struct tegra_usb_cd;
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#if IS_ENABLED(CONFIG_USB_TEGRA_CD)
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/**
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* Returns USB charger detection handle given a platform_device handle
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*/
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struct tegra_usb_cd *tegra_usb_get_ucd(struct platform_device *pdev);
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/**
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* Releases USB charger detection handle.
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*/
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extern void tegra_usb_release_ucd(struct tegra_usb_cd *ucd);
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/**
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* Detects the USB charger and returns the type.
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*/
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extern unsigned int
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tegra_ucd_detect_cable_and_set_current(struct tegra_usb_cd *ucd);
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/**
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* Set custom USB charging current.
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*/
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extern void tegra_ucd_set_current(struct tegra_usb_cd *ucd, int current_ma);
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/**
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* Set USB charging current for SDP, CDP as per gadget driver.
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*/
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extern void tegra_ucd_set_sdp_cdp_current(struct tegra_usb_cd *ucd,
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int current_ma);
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/**
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* Set custom USB charger type, this automatically sets the corresponding
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* charging current.
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*/
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void tegra_ucd_set_charger_type(struct tegra_usb_cd *ucd,
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unsigned int connect_type);
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#else /* CONFIG_USB_TEGRA_CD */
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struct tegra_usb_cd *tegra_usb_get_ucd(struct platform_device *pdev)
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{
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return ERR_PTR(-ENODEV);
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}
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void tegra_usb_release_ucd(struct tegra_usb_cd *ucd)
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{
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}
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unsigned int
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tegra_ucd_detect_cable_and_set_current(struct tegra_usb_cd *ucd)
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{
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return -EINVAL;
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}
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void tegra_ucd_set_current(struct tegra_usb_cd *ucd, int current_ma)
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{
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}
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void tegra_ucd_set_sdp_cdp_current(struct tegra_usb_cd *ucd, int current_ma)
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{
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}
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void tegra_ucd_set_charger_type(struct tegra_usb_cd *ucd,
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unsigned int connect_type)
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{
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}
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#endif /* CONFIG_USB_TEGRA_CD */
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#endif /* __TEGRA_USB_CHARGER_H */
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