diff options
Diffstat (limited to 'drivers/usb/gadget/legacy/tcm_usb_gadget.h')
-rw-r--r-- | drivers/usb/gadget/legacy/tcm_usb_gadget.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.h b/drivers/usb/gadget/legacy/tcm_usb_gadget.h new file mode 100644 index 000000000000..8289219925b8 --- /dev/null +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.h | |||
@@ -0,0 +1,145 @@ | |||
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 | enum { | ||
20 | USB_G_STR_CONFIG = USB_GADGET_FIRST_AVAIL_IDX, | ||
21 | USB_G_STR_INT_UAS, | ||
22 | USB_G_STR_INT_BBB, | ||
23 | }; | ||
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 | ||