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/* Copyright (c) 2012-2013, 2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __LINUX_USB_QDSS_H
#define __LINUX_USB_QDSS_H
#include <linux/kernel.h>
#define USB_QDSS_CH_MDM "qdss_mdm"
#define USB_QDSS_CH_MSM "qdss"
struct qdss_request {
char *buf;
int length;
int actual;
int status;
void *context;
};
struct usb_qdss_ch {
const char *name;
struct list_head list;
void (*notify)(void *priv, unsigned event, struct qdss_request *d_req,
struct usb_qdss_ch *);
void *priv;
void *priv_usb;
int app_conn;
};
enum qdss_state {
USB_QDSS_CONNECT,
USB_QDSS_DISCONNECT,
USB_QDSS_CTRL_READ_DONE,
USB_QDSS_DATA_WRITE_DONE,
USB_QDSS_CTRL_WRITE_DONE,
};
#if IS_ENABLED(CONFIG_USB_F_QDSS)
struct usb_qdss_ch *usb_qdss_open(const char *name, void *priv,
void (*notify)(void *, unsigned, struct qdss_request *,
struct usb_qdss_ch *));
void usb_qdss_close(struct usb_qdss_ch *ch);
int usb_qdss_alloc_req(struct usb_qdss_ch *ch, int n_write, int n_read);
void usb_qdss_free_req(struct usb_qdss_ch *ch);
int usb_qdss_read(struct usb_qdss_ch *ch, struct qdss_request *d_req);
int usb_qdss_write(struct usb_qdss_ch *ch, struct qdss_request *d_req);
int usb_qdss_ctrl_write(struct usb_qdss_ch *ch, struct qdss_request *d_req);
int usb_qdss_ctrl_read(struct usb_qdss_ch *ch, struct qdss_request *d_req);
#else
static inline struct usb_qdss_ch *usb_qdss_open(const char *name, void *priv,
void (*n)(void *, u32, struct qdss_request *, struct usb_qdss_ch *))
{
return ERR_PTR(-ENODEV);
}
static inline int usb_qdss_read(struct usb_qdss_ch *c, struct qdss_request *d)
{
return -ENODEV;
}
static inline int usb_qdss_write(struct usb_qdss_ch *c, struct qdss_request *d)
{
return -ENODEV;
}
static inline int usb_qdss_ctrl_write(struct usb_qdss_ch *c,
struct qdss_request *d)
{
return -ENODEV;
}
static inline int usb_qdss_ctrl_read(struct usb_qdss_ch *c,
struct qdss_request *d)
{
return -ENODEV;
}
static inline int usb_qdss_alloc_req(struct usb_qdss_ch *c, int n_wr, int n_rd)
{
return -ENODEV;
}
static inline void usb_qdss_close(struct usb_qdss_ch *ch) { }
static inline void usb_qdss_free_req(struct usb_qdss_ch *ch) { }
#endif /* CONFIG_USB_F_QDSS */
#endif
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