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42#ifndef _USB_H_
43#define _USB_H_
44
45#include <linux/usb.h>
46#include <linux/usb_usual.h>
47#include <linux/blkdev.h>
48#include <linux/completion.h>
49#include <linux/mutex.h>
50#include <linux/workqueue.h>
51#include <scsi/scsi_host.h>
52
53struct us_data;
54struct scsi_cmnd;
55
56
57
58
59
60struct us_unusual_dev {
61 const char* vendorName;
62 const char* productName;
63 __u8 useProtocol;
64 __u8 useTransport;
65 int (*initFunction)(struct us_data *);
66};
67
68
69
70#define US_FLIDX_URB_ACTIVE 0
71#define US_FLIDX_SG_ACTIVE 1
72#define US_FLIDX_ABORTING 2
73#define US_FLIDX_DISCONNECTING 3
74#define US_FLIDX_RESETTING 4
75#define US_FLIDX_TIMED_OUT 5
76#define US_FLIDX_SCAN_PENDING 6
77#define US_FLIDX_REDO_READ10 7
78#define US_FLIDX_READ10_WORKED 8
79
80#define USB_STOR_STRING_LEN 32
81
82
83
84
85
86
87
88
89#define US_IOBUF_SIZE 64
90#define US_SENSE_SIZE 18
91
92typedef int (*trans_cmnd)(struct scsi_cmnd *, struct us_data*);
93typedef int (*trans_reset)(struct us_data*);
94typedef void (*proto_cmnd)(struct scsi_cmnd*, struct us_data*);
95typedef void (*extra_data_destructor)(void *);
96typedef void (*pm_hook)(struct us_data *, int);
97
98#define US_SUSPEND 0
99#define US_RESUME 1
100
101
102struct us_data {
103
104
105
106
107 struct mutex dev_mutex;
108 struct usb_device *pusb_dev;
109 struct usb_interface *pusb_intf;
110 struct us_unusual_dev *unusual_dev;
111 unsigned long fflags;
112 unsigned long dflags;
113 unsigned int send_bulk_pipe;
114 unsigned int recv_bulk_pipe;
115 unsigned int send_ctrl_pipe;
116 unsigned int recv_ctrl_pipe;
117 unsigned int recv_intr_pipe;
118
119
120 char *transport_name;
121 char *protocol_name;
122 __le32 bcs_signature;
123 u8 subclass;
124 u8 protocol;
125 u8 max_lun;
126
127 u8 ifnum;
128 u8 ep_bInterval;
129
130
131 trans_cmnd transport;
132 trans_reset transport_reset;
133 proto_cmnd proto_handler;
134
135
136 struct scsi_cmnd *srb;
137 unsigned int tag;
138 char scsi_name[32];
139
140
141 struct urb *current_urb;
142 struct usb_ctrlrequest *cr;
143 struct usb_sg_request current_sg;
144 unsigned char *iobuf;
145 dma_addr_t iobuf_dma;
146 struct task_struct *ctl_thread;
147
148
149 struct completion cmnd_ready;
150 struct completion notify;
151 wait_queue_head_t delay_wait;
152 struct delayed_work scan_dwork;
153
154
155 void *extra;
156 extra_data_destructor extra_destructor;
157#ifdef CONFIG_PM
158 pm_hook suspend_resume_hook;
159#endif
160
161
162 int use_last_sector_hacks;
163 int last_sector_retries;
164};
165
166
167static inline struct Scsi_Host *us_to_host(struct us_data *us) {
168 return container_of((void *) us, struct Scsi_Host, hostdata);
169}
170static inline struct us_data *host_to_us(struct Scsi_Host *host) {
171 return (struct us_data *) host->hostdata;
172}
173
174
175extern void fill_inquiry_response(struct us_data *us,
176 unsigned char *data, unsigned int data_len);
177
178
179
180#define scsi_unlock(host) spin_unlock_irq(host->host_lock)
181#define scsi_lock(host) spin_lock_irq(host->host_lock)
182
183
184#ifdef CONFIG_PM
185extern int usb_stor_suspend(struct usb_interface *iface, pm_message_t message);
186extern int usb_stor_resume(struct usb_interface *iface);
187extern int usb_stor_reset_resume(struct usb_interface *iface);
188#else
189#define usb_stor_suspend NULL
190#define usb_stor_resume NULL
191#define usb_stor_reset_resume NULL
192#endif
193
194extern int usb_stor_pre_reset(struct usb_interface *iface);
195extern int usb_stor_post_reset(struct usb_interface *iface);
196
197extern int usb_stor_probe1(struct us_data **pus,
198 struct usb_interface *intf,
199 const struct usb_device_id *id,
200 struct us_unusual_dev *unusual_dev);
201extern int usb_stor_probe2(struct us_data *us);
202extern void usb_stor_disconnect(struct usb_interface *intf);
203
204#endif
205