[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / gadget / 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 <scsi/scsi.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 usbg_nacl {
	/* Binary World Wide unique Port Name for SAS Initiator port */
	u64 iport_wwpn;
	/* ASCII formatted WWPN for Sas Initiator port */
	char iport_name[USBG_NAMELEN];
	/* Returned by usbg_make_nodeacl() */
	struct se_node_acl se_node_acl;
};

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 {
	/* SCSI protocol the tport is providing */
	u8 tport_proto_id;
	/* 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>
	9	#include <scsi/scsi.h>
	10	#include <target/target_core_base.h>
	11	#include <target/target_core_fabric.h>
	12
	13	#define USBG_NAMELEN 32
	14
	15	#define fuas_to_gadget(f) (f->function.config->cdev->gadget)
	16	#define UASP_SS_EP_COMP_LOG_STREAMS 4
	17	#define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS)
	18
18786da4	19	enum {
276e2e4f	20	USB_G_STR_CONFIG = USB_GADGET_FIRST_AVAIL_IDX,
18786da4 SAS	21	USB_G_STR_INT_UAS,
	22	USB_G_STR_INT_BBB,
	23	};
c52661d6 SAS	24
	25	#define USB_G_ALT_INT_BBB 0
	26	#define USB_G_ALT_INT_UAS 1
	27
	28	struct usbg_nacl {
	29	/* Binary World Wide unique Port Name for SAS Initiator port */
	30	u64 iport_wwpn;
	31	/* ASCII formatted WWPN for Sas Initiator port */
	32	char iport_name[USBG_NAMELEN];
	33	/* Returned by usbg_make_nodeacl() */
	34	struct se_node_acl se_node_acl;
	35	};
	36
	37	struct tcm_usbg_nexus {
	38	struct se_session *tvn_se_sess;
	39	};
	40
	41	struct usbg_tpg {
	42	struct mutex tpg_mutex;
	43	/* SAS port target portal group tag for TCM */
	44	u16 tport_tpgt;
	45	/* Pointer back to usbg_tport */
	46	struct usbg_tport *tport;
	47	struct workqueue_struct *workqueue;
	48	/* Returned by usbg_make_tpg() */
	49	struct se_portal_group se_tpg;
	50	u32 gadget_connect;
	51	struct tcm_usbg_nexus *tpg_nexus;
	52	atomic_t tpg_port_count;
	53	};
	54
	55	struct usbg_tport {
	56	/* SCSI protocol the tport is providing */
	57	u8 tport_proto_id;
	58	/* Binary World Wide unique Port Name for SAS Target port */
	59	u64 tport_wwpn;
	60	/* ASCII formatted WWPN for SAS Target port */
	61	char tport_name[USBG_NAMELEN];
	62	/* Returned by usbg_make_tport() */
	63	struct se_wwn tport_wwn;
	64	};
	65
	66	enum uas_state {
	67	UASP_SEND_DATA,
	68	UASP_RECEIVE_DATA,
	69	UASP_SEND_STATUS,
	70	UASP_QUEUE_COMMAND,
	71	};
	72
	73	#define USBG_MAX_CMD 64
	74	struct usbg_cmd {
	75	/* common */
	76	u8 cmd_buf[USBG_MAX_CMD];
	77	u32 data_len;
	78	struct work_struct work;
	79	int unpacked_lun;
	80	struct se_cmd se_cmd;
	81	void data_buf; / used if no sg support available */
	82	struct f_uas *fu;
	83	struct completion write_complete;
	84	struct kref ref;
	85
	86	/* UAS only */
	87	u16 tag;
88	u16 prio_attr;
89	struct sense_iu sense_iu;
90	enum uas_state state;
91	struct uas_stream *stream;
92
93	/* BOT only */
94	__le32 bot_tag;
95	unsigned int csw_code;
96	unsigned is_read:1;
97
98	};
99
100	struct uas_stream {
101	struct usb_request *req_in;
102	struct usb_request *req_out;
103	struct usb_request *req_status;
104	};
105
106	struct usbg_cdb {
107	struct usb_request *req;
108	void *buf;
109	};
110
111	struct bot_status {
112	struct usb_request *req;
113	struct bulk_cs_wrap csw;
114	};
115
116	struct f_uas {
117	struct usbg_tpg *tpg;
118	struct usb_function function;
119	u16 iface;
120
121	u32 flags;
122	#define USBG_ENABLED (1 << 0)
123	#define USBG_IS_UAS (1 << 1)
124	#define USBG_USE_STREAMS (1 << 2)
125	#define USBG_IS_BOT (1 << 3)
126	#define USBG_BOT_CMD_PEND (1 << 4)
127
128	struct usbg_cdb cmd;
129	struct usb_ep *ep_in;
130	struct usb_ep *ep_out;
131
132	/* UAS */
133	struct usb_ep *ep_status;
134	struct usb_ep *ep_cmd;
135	struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS];
136
137	/* BOT */
138	struct bot_status bot_status;
139	struct usb_request *bot_req_in;
140	struct usb_request *bot_req_out;
141	};
142
143	extern struct usbg_tpg *the_only_tpg_I_currently_have;
144
145	#endif