1 /* $FreeBSD: head/sys/dev/usb/usb_process.h 263423 2014-03-20 13:53:24Z hselasky $ */
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #ifndef _USB_PROCESS_H_
28 #define _USB_PROCESS_H_
30 #include <sys/interrupt.h>
31 #include <sys/signalvar.h>
32 #include <sys/thread.h>
35 #define USB_PRI_HIGH TDPRI_INT_HIGH
36 #define USB_PRI_MED TDPRI_INT_MED
38 #define USB_PROC_WAIT_TIMEOUT 2
39 #define USB_PROC_WAIT_DRAIN 1
40 #define USB_PROC_WAIT_NORMAL 0
42 /* structure prototypes */
48 * The following structure defines the USB process.
51 TAILQ_HEAD(, usb_proc_msg
) up_qhead
;
55 struct thread
*up_ptr
;
56 struct thread
*up_curtd
;
59 usb_size_t up_msg_num
;
70 uint8_t usb_proc_is_gone(struct usb_process
*up
);
71 int usb_proc_create(struct usb_process
*up
, struct lock
*p_lock
,
72 const char *pmesg
, uint8_t prio
);
73 void usb_proc_drain(struct usb_process
*up
);
74 void usb_proc_mwait(struct usb_process
*up
, void *pm0
, void *pm1
);
75 void usb_proc_free(struct usb_process
*up
);
76 void *usb_proc_msignal(struct usb_process
*up
, void *pm0
, void *pm1
);
77 void usb_proc_rewakeup(struct usb_process
*up
);
78 int usb_proc_is_called_from(struct usb_process
*up
);
80 void usb_proc_explore_mwait(struct usb_device
*, void *, void *);
81 void *usb_proc_explore_msignal(struct usb_device
*, void *, void *);
82 void usb_proc_explore_lock(struct usb_device
*);
83 void usb_proc_explore_unlock(struct usb_device
*);
85 #endif /* _USB_PROCESS_H_ */