ANDROID: usb: Add vendor hook for usb suspend and resume
Add the hook that vendor can design and bypass the suspend/resume. When the bypass is set, skip the orignal suspend/resume methods. In mobile, a co-processor can be used with USB audio, and ACPU may be able to sleep in such condition to improve power consumption. We will need vendor hook to support this. Bug: 192774581 Signed-off-by: Puma Hsu <pumahsu@google.com> Change-Id: Ic62a8a1e662bbe3fb0aa17af7491daace0b9f18a
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27
include/trace/hooks/usb.h
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27
include/trace/hooks/usb.h
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/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM usb
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH trace/hooks
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#if !defined(_TRACE_HOOK_USB_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HOOK_USB_H
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#include <linux/tracepoint.h>
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#include <linux/usb.h>
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#include <trace/hooks/vendor_hooks.h>
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/*
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* Following tracepoints are not exported in tracefs and provide a
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* mechanism for vendor modules to hook and extend functionality
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*/
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DECLARE_HOOK(android_vh_usb_dev_suspend,
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TP_PROTO(struct usb_device *udev, pm_message_t msg, int *bypass),
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TP_ARGS(udev, msg, bypass));
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DECLARE_HOOK(android_vh_usb_dev_resume,
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TP_PROTO(struct usb_device *udev, pm_message_t msg, int *bypass),
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TP_ARGS(udev, msg, bypass));
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#endif /* _TRACE_HOOK_USB_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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