70 lines
1.7 KiB
C
Executable File
70 lines
1.7 KiB
C
Executable File
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012-2013, 2017-2020 The Linux Foundation. All rights reserved.
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* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __LINUX_USB_QDSS_H
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#define __LINUX_USB_QDSS_H
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#include <linux/err.h>
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#include <linux/kernel.h>
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#include <linux/scatterlist.h>
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#define USB_QDSS_CH_EBC "qdss_ebc"
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#define USB_QDSS_CH_MDM "qdss_mdm"
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#define USB_QDSS_CH_SW "qdss_sw"
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struct qdss_request {
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char *buf;
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int length;
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int actual;
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int status;
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void *context;
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struct scatterlist *sg;
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unsigned int num_sgs;
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};
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struct usb_qdss_ch;
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enum qdss_state {
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USB_QDSS_CONNECT,
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USB_QDSS_DISCONNECT,
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USB_QDSS_CTRL_READ_DONE,
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USB_QDSS_DATA_WRITE_DONE,
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};
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#if IS_ENABLED(CONFIG_USB_F_QDSS)
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struct usb_qdss_ch *usb_qdss_open(const char *name, void *priv,
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void (*notify)(void *priv, unsigned int event,
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struct qdss_request *d_req, struct usb_qdss_ch *ch));
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void usb_qdss_close(struct usb_qdss_ch *ch);
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int usb_qdss_alloc_req(struct usb_qdss_ch *ch, int n_write);
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void usb_qdss_free_req(struct usb_qdss_ch *ch);
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int usb_qdss_write(struct usb_qdss_ch *ch, struct qdss_request *d_req);
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#else
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static inline struct usb_qdss_ch *usb_qdss_open(const char *name, void *priv,
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void (*n)(void *, unsigned int event,
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struct qdss_request *d, struct usb_qdss_ch *c))
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{
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return ERR_PTR(-ENODEV);
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}
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static inline int usb_qdss_write(struct usb_qdss_ch *c, struct qdss_request *d)
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{
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return -ENODEV;
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}
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static inline int usb_qdss_alloc_req(struct usb_qdss_ch *c, int n_wr, int n_rd)
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{
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return -ENODEV;
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}
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static inline void usb_qdss_close(struct usb_qdss_ch *ch) { }
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static inline void usb_qdss_free_req(struct usb_qdss_ch *ch) { }
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#endif /* CONFIG_USB_F_QDSS */
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#endif
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