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27#ifndef _USB_H_
28#define _USB_H_
29
30#include <linux/usb.h>
31#include <linux/usb_usual.h>
32#include <linux/blkdev.h>
33#include <linux/completion.h>
34#include <linux/mutex.h>
35#include <linux/workqueue.h>
36#include <scsi/scsi_host.h>
37
38struct us_data;
39struct scsi_cmnd;
40
41
42
43
44
45struct us_unusual_dev {
46 const char* vendorName;
47 const char* productName;
48 __u8 useProtocol;
49 __u8 useTransport;
50 int (*initFunction)(struct us_data *);
51};
52
53
54
55#define US_FLIDX_URB_ACTIVE 0
56#define US_FLIDX_SG_ACTIVE 1
57#define US_FLIDX_ABORTING 2
58#define US_FLIDX_DISCONNECTING 3
59#define US_FLIDX_RESETTING 4
60#define US_FLIDX_TIMED_OUT 5
61#define US_FLIDX_SCAN_PENDING 6
62#define US_FLIDX_REDO_READ10 7
63#define US_FLIDX_READ10_WORKED 8
64
65#define USB_STOR_STRING_LEN 32
66
67
68
69
70
71
72
73
74#define US_IOBUF_SIZE 64
75#define US_SENSE_SIZE 18
76
77typedef int (*trans_cmnd)(struct scsi_cmnd *, struct us_data*);
78typedef int (*trans_reset)(struct us_data*);
79typedef void (*proto_cmnd)(struct scsi_cmnd*, struct us_data*);
80typedef void (*extra_data_destructor)(void *);
81typedef void (*pm_hook)(struct us_data *, int);
82
83#define US_SUSPEND 0
84#define US_RESUME 1
85
86
87struct us_data {
88
89
90
91
92
93 struct mutex dev_mutex;
94 struct usb_device *pusb_dev;
95 struct usb_interface *pusb_intf;
96 const struct us_unusual_dev *unusual_dev;
97
98 unsigned long fflags;
99 unsigned long dflags;
100 unsigned int send_bulk_pipe;
101 unsigned int recv_bulk_pipe;
102 unsigned int send_ctrl_pipe;
103 unsigned int recv_ctrl_pipe;
104 unsigned int recv_intr_pipe;
105
106
107 char *transport_name;
108 char *protocol_name;
109 __le32 bcs_signature;
110 u8 subclass;
111 u8 protocol;
112 u8 max_lun;
113
114 u8 ifnum;
115 u8 ep_bInterval;
116
117
118 trans_cmnd transport;
119 trans_reset transport_reset;
120 proto_cmnd proto_handler;
121
122
123 struct scsi_cmnd *srb;
124 unsigned int tag;
125 char scsi_name[32];
126
127
128 struct urb *current_urb;
129 struct usb_ctrlrequest *cr;
130 struct usb_sg_request current_sg;
131 unsigned char *iobuf;
132 dma_addr_t iobuf_dma;
133 struct task_struct *ctl_thread;
134
135
136 struct completion cmnd_ready;
137 struct completion notify;
138 wait_queue_head_t delay_wait;
139 struct delayed_work scan_dwork;
140
141
142 void *extra;
143 extra_data_destructor extra_destructor;
144#ifdef CONFIG_PM
145 pm_hook suspend_resume_hook;
146#endif
147
148
149 int use_last_sector_hacks;
150 int last_sector_retries;
151};
152
153
154static inline struct Scsi_Host *us_to_host(struct us_data *us) {
155 return container_of((void *) us, struct Scsi_Host, hostdata);
156}
157static inline struct us_data *host_to_us(struct Scsi_Host *host) {
158 return (struct us_data *) host->hostdata;
159}
160
161
162extern void fill_inquiry_response(struct us_data *us,
163 unsigned char *data, unsigned int data_len);
164
165
166
167
168
169#define scsi_unlock(host) spin_unlock_irq(host->host_lock)
170#define scsi_lock(host) spin_lock_irq(host->host_lock)
171
172
173#ifdef CONFIG_PM
174extern int usb_stor_suspend(struct usb_interface *iface, pm_message_t message);
175extern int usb_stor_resume(struct usb_interface *iface);
176extern int usb_stor_reset_resume(struct usb_interface *iface);
177#else
178#define usb_stor_suspend NULL
179#define usb_stor_resume NULL
180#define usb_stor_reset_resume NULL
181#endif
182
183extern int usb_stor_pre_reset(struct usb_interface *iface);
184extern int usb_stor_post_reset(struct usb_interface *iface);
185
186extern int usb_stor_probe1(struct us_data **pus,
187 struct usb_interface *intf,
188 const struct usb_device_id *id,
189 const struct us_unusual_dev *unusual_dev,
190 struct scsi_host_template *sht);
191extern int usb_stor_probe2(struct us_data *us);
192extern void usb_stor_disconnect(struct usb_interface *intf);
193
194extern void usb_stor_adjust_quirks(struct usb_device *dev,
195 unsigned long *fflags);
196
197#define module_usb_stor_driver(__driver, __sht, __name) \
198static int __init __driver##_init(void) \
199{ \
200 usb_stor_host_template_init(&(__sht), __name, THIS_MODULE); \
201 return usb_register(&(__driver)); \
202} \
203module_init(__driver##_init); \
204static void __exit __driver##_exit(void) \
205{ \
206 usb_deregister(&(__driver)); \
207} \
208module_exit(__driver##_exit)
209
210#endif
211