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Merge "usb: gadget: Add snapshot of USB DIAG function driver"

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qctecmdr 2019-10-14 14:43:47 -07:00 • committed by Gerrit - the friendly Code Review server
commit 76e2e9215f
4 changed files with 1180 additions and 0 deletions
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13
drivers/usb/gadget/Kconfig
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@ -216,6 +216,9 @@ config USB_F_PRINTER
config USB_F_TCM
tristate
config USB_F_DIAG
tristate
config USB_F_ACC
tristate
@ -514,6 +517,16 @@ config USB_CONFIGFS_F_TCM
Both protocols can work on USB2.0 and USB3.0.
UAS utilizes the USB 3.0 feature called streams support.
config USB_CONFIGFS_F_DIAG
tristate "USB Diag function"
select USB_F_DIAG
depends on USB_CONFIGFS
help
Diag function driver enables support for diagnostics service over USB.
Diagnostics application running on Host receives stream of log data
over USB. Applications can also send commands to diagnostics client
running on device.
choice
tristate "USB Gadget precomposed configurations"
default USB_ETH

2
drivers/usb/gadget/function/Makefile
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@ -54,3 +54,5 @@ usb_f_accessory-y := f_accessory.o
obj-$(CONFIG_USB_F_ACC) += usb_f_accessory.o
usb_f_audio_source-y := f_audio_source.o
obj-$(CONFIG_USB_F_AUDIO_SRC) += usb_f_audio_source.o
usb_f_diag-y := f_diag.o
obj-$(CONFIG_USB_F_DIAG) += usb_f_diag.o

1093
drivers/usb/gadget/function/f_diag.c Normal file
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File diff suppressed because it is too large Load diff

72
include/linux/usb/usbdiag.h Normal file
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@ -0,0 +1,72 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2008-2010, 2012-2014, The Linux Foundation.
* All rights reserved.
*/
#ifndef _DRIVERS_USB_DIAG_H_
#define _DRIVERS_USB_DIAG_H_
#include <linux/err.h>
#define DIAG_LEGACY "diag"
#define DIAG_MDM "diag_mdm"
#define DIAG_QSC "diag_qsc"
#define DIAG_MDM2 "diag_mdm2"
#define USB_DIAG_CONNECT 0
#define USB_DIAG_DISCONNECT 1
#define USB_DIAG_WRITE_DONE 2
#define USB_DIAG_READ_DONE 3
struct diag_request {
char *buf;
int length;
int actual;
int status;
void *context;
};
struct usb_diag_ch {
const char *name;
struct list_head list;
void (*notify)(void *priv, unsigned int event,
struct diag_request *d_req);
void *priv;
void *priv_usb;
};
#if IS_ENABLED(CONFIG_USB_F_DIAG)
int usb_diag_request_size(struct usb_diag_ch *ch);
struct usb_diag_ch *usb_diag_open(const char *name, void *priv,
void (*notify)(void *, unsigned int, struct diag_request *));
void usb_diag_close(struct usb_diag_ch *ch);
int usb_diag_alloc_req(struct usb_diag_ch *ch, int n_write, int n_read);
int usb_diag_read(struct usb_diag_ch *ch, struct diag_request *d_req);
int usb_diag_write(struct usb_diag_ch *ch, struct diag_request *d_req);
#else
static inline struct usb_diag_ch *usb_diag_open(const char *name, void *priv,
void (*notify)(void *, unsigned int, struct diag_request *))
{
return ERR_PTR(-ENODEV);
}
static inline void usb_diag_close(struct usb_diag_ch *ch)
{
}
static inline
int usb_diag_alloc_req(struct usb_diag_ch *ch, int n_write, int n_read)
{
return -ENODEV;
}
static inline
int usb_diag_read(struct usb_diag_ch *ch, struct diag_request *d_req)
{
return -ENODEV;
}
static inline
int usb_diag_write(struct usb_diag_ch *ch, struct diag_request *d_req)
{
return -ENODEV;
}
#endif /* CONFIG_USB_F_DIAG */
#endif /* _DRIVERS_USB_DIAG_H_ */