cregit-Linux how code gets into the kernel

Release 4.7 drivers/usb/gadget/function/tcm.h

#ifndef __TARGET_USB_GADGET_H__

#define __TARGET_USB_GADGET_H__

#include <linux/kref.h>
/* #include <linux/usb/uas.h> */
#include <linux/usb/composite.h>
#include <linux/usb/uas.h>
#include <linux/usb/storage.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>


#define USBG_NAMELEN 32


#define fuas_to_gadget(f)	(f->function.config->cdev->gadget)

#define UASP_SS_EP_COMP_LOG_STREAMS 4

#define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS)

enum {
	
USB_G_STR_INT_UAS = 0,
	
USB_G_STR_INT_BBB,
};


#define USB_G_ALT_INT_BBB       0

#define USB_G_ALT_INT_UAS       1


#define USB_G_DEFAULT_SESSION_TAGS	128


struct tcm_usbg_nexus {
	
struct se_session *tvn_se_sess;
};


struct usbg_tpg {
	
struct mutex tpg_mutex;
	/* SAS port target portal group tag for TCM */
	
u16 tport_tpgt;
	/* Pointer back to usbg_tport */
	
struct usbg_tport *tport;
	
struct workqueue_struct *workqueue;
	/* Returned by usbg_make_tpg() */
	
struct se_portal_group se_tpg;
	
u32 gadget_connect;
	
struct tcm_usbg_nexus *tpg_nexus;
	
atomic_t tpg_port_count;

	
struct usb_function_instance *fi;
};


struct usbg_tport {
	/* Binary World Wide unique Port Name for SAS Target port */
	
u64 tport_wwpn;
	/* ASCII formatted WWPN for SAS Target port */
	
char tport_name[USBG_NAMELEN];
	/* Returned by usbg_make_tport() */
	
struct se_wwn tport_wwn;
};


enum uas_state {
	
UASP_SEND_DATA,
	
UASP_RECEIVE_DATA,
	
UASP_SEND_STATUS,
	
UASP_QUEUE_COMMAND,
};


#define USBG_MAX_CMD    64

struct usbg_cmd {
	/* common */
	
u8 cmd_buf[USBG_MAX_CMD];
	
u32 data_len;
	
struct work_struct work;
	
int unpacked_lun;
	
struct se_cmd se_cmd;
	
void *data_buf; /* used if no sg support available */
	
struct f_uas *fu;
	
struct completion write_complete;
	
struct kref ref;

	/* UAS only */
	
u16 tag;
	
u16 prio_attr;
	
struct sense_iu sense_iu;
	
enum uas_state state;
	
struct uas_stream *stream;

	/* BOT only */
	
__le32 bot_tag;
	
unsigned int csw_code;
	
unsigned is_read:1;

};


struct uas_stream {
	
struct usb_request	*req_in;
	
struct usb_request	*req_out;
	
struct usb_request	*req_status;
};


struct usbg_cdb {
	
struct usb_request	*req;
	
void			*buf;
};


struct bot_status {
	
struct usb_request	*req;
	
struct bulk_cs_wrap	csw;
};


struct f_uas {
	
struct usbg_tpg		*tpg;
	
struct usb_function	function;
	
u16			iface;

	
u32			flags;

#define USBG_ENABLED		(1 << 0)

#define USBG_IS_UAS		(1 << 1)

#define USBG_USE_STREAMS	(1 << 2)

#define USBG_IS_BOT		(1 << 3)

#define USBG_BOT_CMD_PEND	(1 << 4)

	
struct usbg_cdb		cmd;
	
struct usb_ep		*ep_in;
	
struct usb_ep		*ep_out;

	/* UAS */
	
struct usb_ep		*ep_status;
	
struct usb_ep		*ep_cmd;
	
struct uas_stream	stream[UASP_SS_EP_COMP_NUM_STREAMS];

	/* BOT */
	
struct bot_status	bot_status;
	
struct usb_request	*bot_req_in;
	
struct usb_request	*bot_req_out;
};

#endif /* __TARGET_USB_GADGET_H__ */

Overall Contributors

PersonTokensPropCommitsCommitProp
sebastian andrzej siewiorsebastian andrzej siewior36096.77%233.33%
andrzej pietrasiewiczandrzej pietrasiewicz82.15%350.00%
nicholas bellingernicholas bellinger41.08%116.67%
Total372100.00%6100.00%
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