]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
c52661d6 SAS |
2 | #ifndef __TARGET_USB_GADGET_H__ |
3 | #define __TARGET_USB_GADGET_H__ | |
4 | ||
5 | #include <linux/kref.h> | |
6 | /* #include <linux/usb/uas.h> */ | |
7 | #include <linux/usb/composite.h> | |
8 | #include <linux/usb/uas.h> | |
9 | #include <linux/usb/storage.h> | |
c52661d6 SAS |
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 { |
c3978ed3 | 20 | USB_G_STR_INT_UAS = 0, |
18786da4 SAS |
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 | ||
71e7ae8e NB |
27 | #define USB_G_DEFAULT_SESSION_TAGS 128 |
28 | ||
c52661d6 SAS |
29 | struct tcm_usbg_nexus { |
30 | struct se_session *tvn_se_sess; | |
31 | }; | |
32 | ||
33 | struct usbg_tpg { | |
34 | struct mutex tpg_mutex; | |
35 | /* SAS port target portal group tag for TCM */ | |
36 | u16 tport_tpgt; | |
37 | /* Pointer back to usbg_tport */ | |
38 | struct usbg_tport *tport; | |
39 | struct workqueue_struct *workqueue; | |
40 | /* Returned by usbg_make_tpg() */ | |
41 | struct se_portal_group se_tpg; | |
42 | u32 gadget_connect; | |
43 | struct tcm_usbg_nexus *tpg_nexus; | |
44 | atomic_t tpg_port_count; | |
dc8c46a5 AP |
45 | |
46 | struct usb_function_instance *fi; | |
c52661d6 SAS |
47 | }; |
48 | ||
49 | struct usbg_tport { | |
c52661d6 SAS |
50 | /* Binary World Wide unique Port Name for SAS Target port */ |
51 | u64 tport_wwpn; | |
52 | /* ASCII formatted WWPN for SAS Target port */ | |
53 | char tport_name[USBG_NAMELEN]; | |
54 | /* Returned by usbg_make_tport() */ | |
55 | struct se_wwn tport_wwn; | |
56 | }; | |
57 | ||
58 | enum uas_state { | |
59 | UASP_SEND_DATA, | |
60 | UASP_RECEIVE_DATA, | |
61 | UASP_SEND_STATUS, | |
62 | UASP_QUEUE_COMMAND, | |
63 | }; | |
64 | ||
65 | #define USBG_MAX_CMD 64 | |
66 | struct usbg_cmd { | |
67 | /* common */ | |
68 | u8 cmd_buf[USBG_MAX_CMD]; | |
69 | u32 data_len; | |
70 | struct work_struct work; | |
71 | int unpacked_lun; | |
72 | struct se_cmd se_cmd; | |
73 | void *data_buf; /* used if no sg support available */ | |
74 | struct f_uas *fu; | |
75 | struct completion write_complete; | |
76 | struct kref ref; | |
77 | ||
78 | /* UAS only */ | |
79 | u16 tag; | |
80 | u16 prio_attr; | |
81 | struct sense_iu sense_iu; | |
82 | enum uas_state state; | |
83 | struct uas_stream *stream; | |
84 | ||
85 | /* BOT only */ | |
86 | __le32 bot_tag; | |
87 | unsigned int csw_code; | |
88 | unsigned is_read:1; | |
89 | ||
90 | }; | |
91 | ||
92 | struct uas_stream { | |
93 | struct usb_request *req_in; | |
94 | struct usb_request *req_out; | |
95 | struct usb_request *req_status; | |
96 | }; | |
97 | ||
98 | struct usbg_cdb { | |
99 | struct usb_request *req; | |
100 | void *buf; | |
101 | }; | |
102 | ||
103 | struct bot_status { | |
104 | struct usb_request *req; | |
105 | struct bulk_cs_wrap csw; | |
106 | }; | |
107 | ||
108 | struct f_uas { | |
109 | struct usbg_tpg *tpg; | |
110 | struct usb_function function; | |
111 | u16 iface; | |
112 | ||
113 | u32 flags; | |
114 | #define USBG_ENABLED (1 << 0) | |
115 | #define USBG_IS_UAS (1 << 1) | |
116 | #define USBG_USE_STREAMS (1 << 2) | |
117 | #define USBG_IS_BOT (1 << 3) | |
118 | #define USBG_BOT_CMD_PEND (1 << 4) | |
119 | ||
120 | struct usbg_cdb cmd; | |
121 | struct usb_ep *ep_in; | |
122 | struct usb_ep *ep_out; | |
123 | ||
124 | /* UAS */ | |
125 | struct usb_ep *ep_status; | |
126 | struct usb_ep *ep_cmd; | |
127 | struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS]; | |
128 | ||
129 | /* BOT */ | |
130 | struct bot_status bot_status; | |
131 | struct usb_request *bot_req_in; | |
132 | struct usb_request *bot_req_out; | |
133 | }; | |
134 | ||
08a1cb0f | 135 | #endif /* __TARGET_USB_GADGET_H__ */ |