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gerrit-public.fairphone.software / kernel / msm-5.4 / 5a175bb84d7344fbe5e26cf61b597129e7c80564 / . / drivers / usb / gadget / tcm_usb_gadget.h
blob: bb18999a9a8d9bccc8c40ad44e092ddb636eb4ae [file] [log] [blame]
Sebastian Andrzej Siewiorc52661d2012-05-03 19:51:36 -0700[diff] [blame]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
19#define USB_G_STR_MANUFACTOR 1
20#define USB_G_STR_PRODUCT 2
21#define USB_G_STR_SERIAL 3
22#define USB_G_STR_CONFIG 4
23#define USB_G_STR_INT_UAS 5
24#define USB_G_STR_INT_BBB 6
25
26#define USB_G_ALT_INT_BBB 0
27#define USB_G_ALT_INT_UAS 1
28
29struct usbg_nacl {
30 /* Binary World Wide unique Port Name for SAS Initiator port */
31 u64 iport_wwpn;
32 /* ASCII formatted WWPN for Sas Initiator port */
33 char iport_name[USBG_NAMELEN];
34 /* Returned by usbg_make_nodeacl() */
35 struct se_node_acl se_node_acl;
36};
37
38struct tcm_usbg_nexus {
39 struct se_session *tvn_se_sess;
40};
41
42struct usbg_tpg {
43 struct mutex tpg_mutex;
44 /* SAS port target portal group tag for TCM */
45 u16 tport_tpgt;
46 /* Pointer back to usbg_tport */
47 struct usbg_tport *tport;
48 struct workqueue_struct *workqueue;
49 /* Returned by usbg_make_tpg() */
50 struct se_portal_group se_tpg;
51 u32 gadget_connect;
52 struct tcm_usbg_nexus *tpg_nexus;
53 atomic_t tpg_port_count;
54};
55
56struct usbg_tport {
57 /* SCSI protocol the tport is providing */
58 u8 tport_proto_id;
59 /* Binary World Wide unique Port Name for SAS Target port */
60 u64 tport_wwpn;
61 /* ASCII formatted WWPN for SAS Target port */
62 char tport_name[USBG_NAMELEN];
63 /* Returned by usbg_make_tport() */
64 struct se_wwn tport_wwn;
65};
66
67enum uas_state {
68 UASP_SEND_DATA,
69 UASP_RECEIVE_DATA,
70 UASP_SEND_STATUS,
71 UASP_QUEUE_COMMAND,
72};
73
74#define USBG_MAX_CMD 64
75struct usbg_cmd {
76 /* common */
77 u8 cmd_buf[USBG_MAX_CMD];
78 u32 data_len;
79 struct work_struct work;
80 int unpacked_lun;
81 struct se_cmd se_cmd;
82 void *data_buf; /* used if no sg support available */
83 struct f_uas *fu;
84 struct completion write_complete;
85 struct kref ref;
86
87 /* UAS only */
88 u16 tag;
89 u16 prio_attr;
90 struct sense_iu sense_iu;
91 enum uas_state state;
92 struct uas_stream *stream;
93
94 /* BOT only */
95 __le32 bot_tag;
96 unsigned int csw_code;
97 unsigned is_read:1;
98
99};
100
101struct uas_stream {
102 struct usb_request *req_in;
103 struct usb_request *req_out;
104 struct usb_request *req_status;
105};
106
107struct usbg_cdb {
108 struct usb_request *req;
109 void *buf;
110};
111
112struct bot_status {
113 struct usb_request *req;
114 struct bulk_cs_wrap csw;
115};
116
117struct f_uas {
118 struct usbg_tpg *tpg;
119 struct usb_function function;
120 u16 iface;
121
122 u32 flags;
123#define USBG_ENABLED (1 << 0)
124#define USBG_IS_UAS (1 << 1)
125#define USBG_USE_STREAMS (1 << 2)
126#define USBG_IS_BOT (1 << 3)
127#define USBG_BOT_CMD_PEND (1 << 4)
128
129 struct usbg_cdb cmd;
130 struct usb_ep *ep_in;
131 struct usb_ep *ep_out;
132
133 /* UAS */
134 struct usb_ep *ep_status;
135 struct usb_ep *ep_cmd;
136 struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS];
137
138 /* BOT */
139 struct bot_status bot_status;
140 struct usb_request *bot_req_in;
141 struct usb_request *bot_req_out;
142};
143
144extern struct usbg_tpg *the_only_tpg_I_currently_have;
145
146#endif