d3e268e9e5
Add diag_ipc_bridge driver which is used to communicate with the diag
and QMI interfaces exposed by Qualcomm devices. This snapshot is
taken as of msm-4.14 'commit 9f6f3a7d1aa9 ("msm: kgsl: Perform cache flush
on the pages obtained using get_user_pages()")'.
Change-Id: I8d5069d40b623b2a06eb3eb45a8c5fca1769222a
Signed-off-by: Vijayavardhan Vennapusa <quic_vvreddy@quicinc.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2011, 2013, 2018, The Linux Foundation. All rights reserved.
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* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __LINUX_USB_DIAG_BRIDGE_H__
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#define __LINUX_USB_DIAG_BRIDGE_H__
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struct diag_bridge_ops {
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void *ctxt;
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void (*read_complete_cb)(void *ctxt, char *buf,
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int buf_size, int actual);
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void (*write_complete_cb)(void *ctxt, char *buf,
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int buf_size, int actual);
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int (*suspend)(void *ctxt);
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void (*resume)(void *ctxt);
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};
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#if IS_ENABLED(CONFIG_USB_QCOM_DIAG_BRIDGE)
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extern int diag_bridge_read(int id, char *data, int size);
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extern int diag_bridge_write(int id, char *data, int size);
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extern int diag_bridge_open(int id, struct diag_bridge_ops *ops);
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extern void diag_bridge_close(int id);
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#else
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static int __maybe_unused diag_bridge_read(int id, char *data, int size)
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{
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return -ENODEV;
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}
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static int __maybe_unused diag_bridge_write(int id, char *data, int size)
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{
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return -ENODEV;
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}
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static int __maybe_unused diag_bridge_open(int id, struct diag_bridge_ops *ops)
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{
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return -ENODEV;
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}
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static void __maybe_unused diag_bridge_close(int id) { }
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#endif
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#endif
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