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3d82904559
This patch introduces the main part of Cadence USBSSP DRD driver to Linux kernel. To reduce the patch size a little bit, the header file gadget.h was intentionally added as separate patch. The Cadence USBSSP DRD Controller is a highly configurable IP Core which can be instantiated as Dual-Role Device (DRD), Peripheral Only and Host Only (XHCI)configurations. The current driver has been validated with FPGA platform. We have support for PCIe bus, which is used on FPGA prototyping. The host side of USBSS DRD controller is compliant with XHCI. The architecture for device side is almost the same as for host side, and most of the XHCI specification can be used to understand how this controller operates. Signed-off-by: Pawel Laszczak <pawell@cadence.com> Signed-off-by: Peter Chen <peter.chen@nxp.com>
37 lines
736 B
C
37 lines
736 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Cadence USBSS and USBSSP DRD Driver - Gadget Export APIs.
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*
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* Copyright (C) 2017 NXP
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* Copyright (C) 2017-2018 NXP
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*
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* Authors: Peter Chen <peter.chen@nxp.com>
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*/
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#ifndef __LINUX_CDNS3_GADGET_EXPORT
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#define __LINUX_CDNS3_GADGET_EXPORT
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#if IS_ENABLED(CONFIG_USB_CDNSP_GADGET)
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int cdnsp_gadget_init(struct cdns *cdns);
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#else
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static inline int cdnsp_gadget_init(struct cdns *cdns)
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{
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return -ENXIO;
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}
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#endif /* CONFIG_USB_CDNSP_GADGET */
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#if IS_ENABLED(CONFIG_USB_CDNS3_GADGET)
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int cdns3_gadget_init(struct cdns *cdns);
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#else
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static inline int cdns3_gadget_init(struct cdns *cdns)
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{
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return -ENXIO;
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}
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#endif /* CONFIG_USB_CDNS3_GADGET */
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#endif /* __LINUX_CDNS3_GADGET_EXPORT */
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