a88628b22a
Currently, if debug_inface is enabled the list pool allocation is done for ctrl_write_pool instead of data_write_pool. Therefore when coresight calls qdss_write function it finds the data_write_pool empty & since data is populated in ctrl_write_pool, it will return -EIO. This restricts qdss to work on a composition where ctrl & data write pool coexists. Fix this by removing the control interface as it is no longer used. Change-Id: I2d6368d8f5a1b0ada2634ec682f19bc99551c76c Signed-off-by: Udipto Goswami <ugoswami@codeaurora.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2012-2013, 2017-2020 The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#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 scatterlist *sg;
|
|
unsigned int num_sgs;
|
|
unsigned int num_mapped_sgs;
|
|
};
|
|
|
|
struct usb_qdss_ch {
|
|
const char *name;
|
|
struct list_head list;
|
|
void (*notify)(void *priv, unsigned int event,
|
|
struct qdss_request *d_req, struct usb_qdss_ch *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,
|
|
};
|
|
|
|
struct qdss_req {
|
|
struct usb_request *usb_req;
|
|
struct completion write_done;
|
|
struct qdss_request *qdss_req;
|
|
struct list_head list;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_USB_F_QDSS)
|
|
struct usb_qdss_ch *usb_qdss_open(const char *name, void *priv,
|
|
void (*notify)(void *priv, unsigned int event,
|
|
struct qdss_request *d_req, struct usb_qdss_ch *ch));
|
|
void usb_qdss_close(struct usb_qdss_ch *ch);
|
|
int usb_qdss_alloc_req(struct usb_qdss_ch *ch, int n_write);
|
|
void usb_qdss_free_req(struct usb_qdss_ch *ch);
|
|
int usb_qdss_write(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 *, unsigned int event,
|
|
struct qdss_request *d, struct usb_qdss_ch *c))
|
|
{
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
static inline int usb_qdss_write(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
|