[deliverable/linux.git] / drivers / usb / gadget / legacy / tcm_usb_gadget.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_CONFIG = USB_GADGET_FIRST_AVAIL_IDX,
	USB_G_STR_INT_UAS,
	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
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 {
276e2e4f	19	USB_G_STR_CONFIG = USB_GADGET_FIRST_AVAIL_IDX,
18786da4 SAS	20	USB_G_STR_INT_UAS,
	21	USB_G_STR_INT_BBB,
	22	};
c52661d6 SAS	23
	24	#define USB_G_ALT_INT_BBB 0
	25	#define USB_G_ALT_INT_UAS 1
	26
c52661d6 SAS	27	struct tcm_usbg_nexus {
	28	struct se_session *tvn_se_sess;
	29	};
	30
	31	struct usbg_tpg {
	32	struct mutex tpg_mutex;
	33	/* SAS port target portal group tag for TCM */
	34	u16 tport_tpgt;
	35	/* Pointer back to usbg_tport */
	36	struct usbg_tport *tport;
	37	struct workqueue_struct *workqueue;
	38	/* Returned by usbg_make_tpg() */
	39	struct se_portal_group se_tpg;
	40	u32 gadget_connect;
	41	struct tcm_usbg_nexus *tpg_nexus;
	42	atomic_t tpg_port_count;
	43	};
	44
	45	struct usbg_tport {
c52661d6 SAS	46	/* Binary World Wide unique Port Name for SAS Target port */
	47	u64 tport_wwpn;
	48	/* ASCII formatted WWPN for SAS Target port */
	49	char tport_name[USBG_NAMELEN];
	50	/* Returned by usbg_make_tport() */
	51	struct se_wwn tport_wwn;
	52	};
	53
	54	enum uas_state {
	55	UASP_SEND_DATA,
	56	UASP_RECEIVE_DATA,
	57	UASP_SEND_STATUS,
	58	UASP_QUEUE_COMMAND,
	59	};
	60
	61	#define USBG_MAX_CMD 64
	62	struct usbg_cmd {
	63	/* common */
	64	u8 cmd_buf[USBG_MAX_CMD];
	65	u32 data_len;
	66	struct work_struct work;
	67	int unpacked_lun;
	68	struct se_cmd se_cmd;
	69	void data_buf; / used if no sg support available */
	70	struct f_uas *fu;
	71	struct completion write_complete;
	72	struct kref ref;
	73
	74	/* UAS only */
	75	u16 tag;
	76	u16 prio_attr;
	77	struct sense_iu sense_iu;
	78	enum uas_state state;
	79	struct uas_stream *stream;
	80
	81	/* BOT only */
	82	__le32 bot_tag;
	83	unsigned int csw_code;
	84	unsigned is_read:1;
	85
	86	};
	87
	88	struct uas_stream {
	89	struct usb_request *req_in;
	90	struct usb_request *req_out;
	91	struct usb_request *req_status;
	92	};
	93
	94	struct usbg_cdb {
	95	struct usb_request *req;
	96	void *buf;
	97	};
	98
	99	struct bot_status {
	100	struct usb_request *req;
	101	struct bulk_cs_wrap csw;
	102	};
	103
	104	struct f_uas {
	105	struct usbg_tpg *tpg;
	106	struct usb_function function;
	107	u16 iface;
	108
	109	u32 flags;
110	#define USBG_ENABLED (1 << 0)
111	#define USBG_IS_UAS (1 << 1)
112	#define USBG_USE_STREAMS (1 << 2)
113	#define USBG_IS_BOT (1 << 3)
114	#define USBG_BOT_CMD_PEND (1 << 4)
115
116	struct usbg_cdb cmd;
117	struct usb_ep *ep_in;
118	struct usb_ep *ep_out;
119
120	/* UAS */
121	struct usb_ep *ep_status;
122	struct usb_ep *ep_cmd;
123	struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS];
124
125	/* BOT */
126	struct bot_status bot_status;
127	struct usb_request *bot_req_in;
128	struct usb_request *bot_req_out;
129	};
130
131	extern struct usbg_tpg *the_only_tpg_I_currently_have;
132
133	#endif