1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | /* SPDX-License-Identifier: GPL-2.0 */ #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_INT_UAS = 0, USB_G_STR_INT_BBB, }; #define USB_G_ALT_INT_BBB 0 #define USB_G_ALT_INT_UAS 1 #define USB_G_DEFAULT_SESSION_TAGS 128 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 usb_function_instance *fi; }; 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; }; #endif /* __TARGET_USB_GADGET_H__ */ |