[deliverable/linux.git] / 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

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 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;
};

extern struct usbg_tpg *the_only_tpg_I_currently_have;

#endif /* __TARGET_USB_GADGET_H__ */
Commit	Line	Data
c52661d6 SAS	1	#ifndef __TARGET_USB_GADGET_H__
	2	#define __TARGET_USB_GADGET_H__
	3
	4	#include <linux/kref.h>
	5	/* #include <linux/usb/uas.h> */
	6	#include <linux/usb/composite.h>
	7	#include <linux/usb/uas.h>
	8	#include <linux/usb/storage.h>
c52661d6 SAS	9	#include <target/target_core_base.h>
	10	#include <target/target_core_fabric.h>
	11
	12	#define USBG_NAMELEN 32
	13
	14	#define fuas_to_gadget(f) (f->function.config->cdev->gadget)
	15	#define UASP_SS_EP_COMP_LOG_STREAMS 4
	16	#define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS)
	17
18786da4	18	enum {
c3978ed3	19	USB_G_STR_INT_UAS = 0,
18786da4 SAS	20	USB_G_STR_INT_BBB,
18786da4 SAS	21	};
c52661d6 SAS	22
	23	#define USB_G_ALT_INT_BBB 0
	24	#define USB_G_ALT_INT_UAS 1
	25
c52661d6 SAS	26	struct tcm_usbg_nexus {
	27	struct se_session *tvn_se_sess;
	28	};
	29
	30	struct usbg_tpg {
	31	struct mutex tpg_mutex;
	32	/* SAS port target portal group tag for TCM */
	33	u16 tport_tpgt;
	34	/* Pointer back to usbg_tport */
	35	struct usbg_tport *tport;
	36	struct workqueue_struct *workqueue;
	37	/* Returned by usbg_make_tpg() */
	38	struct se_portal_group se_tpg;
	39	u32 gadget_connect;
	40	struct tcm_usbg_nexus *tpg_nexus;
	41	atomic_t tpg_port_count;
	42	};
	43
	44	struct usbg_tport {
c52661d6 SAS	45	/* Binary World Wide unique Port Name for SAS Target port */
	46	u64 tport_wwpn;
	47	/* ASCII formatted WWPN for SAS Target port */
	48	char tport_name[USBG_NAMELEN];
	49	/* Returned by usbg_make_tport() */
	50	struct se_wwn tport_wwn;
	51	};
	52
	53	enum uas_state {
	54	UASP_SEND_DATA,
	55	UASP_RECEIVE_DATA,
	56	UASP_SEND_STATUS,
	57	UASP_QUEUE_COMMAND,
	58	};
	59
	60	#define USBG_MAX_CMD 64
	61	struct usbg_cmd {
	62	/* common */
	63	u8 cmd_buf[USBG_MAX_CMD];
	64	u32 data_len;
	65	struct work_struct work;
	66	int unpacked_lun;
	67	struct se_cmd se_cmd;
	68	void data_buf; / used if no sg support available */
	69	struct f_uas *fu;
	70	struct completion write_complete;
	71	struct kref ref;
	72
	73	/* UAS only */
	74	u16 tag;
	75	u16 prio_attr;
	76	struct sense_iu sense_iu;
	77	enum uas_state state;
	78	struct uas_stream *stream;
	79
	80	/* BOT only */
	81	__le32 bot_tag;
	82	unsigned int csw_code;
	83	unsigned is_read:1;
	84
	85	};
	86
	87	struct uas_stream {
	88	struct usb_request *req_in;
	89	struct usb_request *req_out;
	90	struct usb_request *req_status;
	91	};
	92
	93	struct usbg_cdb {
	94	struct usb_request *req;
	95	void *buf;
	96	};
	97
	98	struct bot_status {
	99	struct usb_request *req;
	100	struct bulk_cs_wrap csw;
	101	};
	102
	103	struct f_uas {
	104	struct usbg_tpg *tpg;
	105	struct usb_function function;
	106	u16 iface;
	107
	108	u32 flags;
109	#define USBG_ENABLED (1 << 0)
110	#define USBG_IS_UAS (1 << 1)
111	#define USBG_USE_STREAMS (1 << 2)
112	#define USBG_IS_BOT (1 << 3)
113	#define USBG_BOT_CMD_PEND (1 << 4)
114
115	struct usbg_cdb cmd;
116	struct usb_ep *ep_in;
117	struct usb_ep *ep_out;
118
119	/* UAS */
120	struct usb_ep *ep_status;
121	struct usb_ep *ep_cmd;
122	struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS];
123
124	/* BOT */
125	struct bot_status bot_status;
126	struct usb_request *bot_req_in;
127	struct usb_request *bot_req_out;
128	};
129
130	extern struct usbg_tpg *the_only_tpg_I_currently_have;
131
08a1cb0f	132	#endif /* __TARGET_USB_GADGET_H__ */