1*141a761fSMarkus Pfeiffer /* $FreeBSD: head/sys/dev/usb/usb_process.h 263423 2014-03-20 13:53:24Z hselasky $ */ 212bd3c8bSSascha Wildner /*- 312bd3c8bSSascha Wildner * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 412bd3c8bSSascha Wildner * 512bd3c8bSSascha Wildner * Redistribution and use in source and binary forms, with or without 612bd3c8bSSascha Wildner * modification, are permitted provided that the following conditions 712bd3c8bSSascha Wildner * are met: 812bd3c8bSSascha Wildner * 1. Redistributions of source code must retain the above copyright 912bd3c8bSSascha Wildner * notice, this list of conditions and the following disclaimer. 1012bd3c8bSSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright 1112bd3c8bSSascha Wildner * notice, this list of conditions and the following disclaimer in the 1212bd3c8bSSascha Wildner * documentation and/or other materials provided with the distribution. 1312bd3c8bSSascha Wildner * 1412bd3c8bSSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1512bd3c8bSSascha Wildner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1612bd3c8bSSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1712bd3c8bSSascha Wildner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1812bd3c8bSSascha Wildner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1912bd3c8bSSascha Wildner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2012bd3c8bSSascha Wildner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2112bd3c8bSSascha Wildner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2212bd3c8bSSascha Wildner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2312bd3c8bSSascha Wildner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2412bd3c8bSSascha Wildner * SUCH DAMAGE. 2512bd3c8bSSascha Wildner */ 2612bd3c8bSSascha Wildner 2712bd3c8bSSascha Wildner #ifndef _USB_PROCESS_H_ 2812bd3c8bSSascha Wildner #define _USB_PROCESS_H_ 2912bd3c8bSSascha Wildner 3012bd3c8bSSascha Wildner #include <sys/interrupt.h> 31722d05c3SSascha Wildner #include <sys/signalvar.h> 32722d05c3SSascha Wildner #include <sys/thread.h> 3312bd3c8bSSascha Wildner 3412bd3c8bSSascha Wildner /* defines */ 35722d05c3SSascha Wildner #define USB_PRI_HIGH TDPRI_INT_HIGH 36722d05c3SSascha Wildner #define USB_PRI_MED TDPRI_INT_MED 3712bd3c8bSSascha Wildner 3812bd3c8bSSascha Wildner #define USB_PROC_WAIT_TIMEOUT 2 3912bd3c8bSSascha Wildner #define USB_PROC_WAIT_DRAIN 1 4012bd3c8bSSascha Wildner #define USB_PROC_WAIT_NORMAL 0 4112bd3c8bSSascha Wildner 4212bd3c8bSSascha Wildner /* structure prototypes */ 4312bd3c8bSSascha Wildner 4412bd3c8bSSascha Wildner struct usb_proc_msg; 458922de18SMarkus Pfeiffer struct usb_device; 4612bd3c8bSSascha Wildner 4712bd3c8bSSascha Wildner /* 4812bd3c8bSSascha Wildner * The following structure defines the USB process. 4912bd3c8bSSascha Wildner */ 5012bd3c8bSSascha Wildner struct usb_process { 5112bd3c8bSSascha Wildner TAILQ_HEAD(, usb_proc_msg) up_qhead; 5212bd3c8bSSascha Wildner struct cv up_cv; 5312bd3c8bSSascha Wildner struct cv up_drain; 5412bd3c8bSSascha Wildner 5512bd3c8bSSascha Wildner struct thread *up_ptr; 5612bd3c8bSSascha Wildner struct thread *up_curtd; 57722d05c3SSascha Wildner struct lock *up_lock; 5812bd3c8bSSascha Wildner 5912bd3c8bSSascha Wildner usb_size_t up_msg_num; 6012bd3c8bSSascha Wildner 6112bd3c8bSSascha Wildner uint8_t up_prio; 6212bd3c8bSSascha Wildner uint8_t up_gone; 6312bd3c8bSSascha Wildner uint8_t up_msleep; 6412bd3c8bSSascha Wildner uint8_t up_csleep; 6512bd3c8bSSascha Wildner uint8_t up_dsleep; 6612bd3c8bSSascha Wildner }; 6712bd3c8bSSascha Wildner 6812bd3c8bSSascha Wildner /* prototypes */ 6912bd3c8bSSascha Wildner 7012bd3c8bSSascha Wildner uint8_t usb_proc_is_gone(struct usb_process *up); 71722d05c3SSascha Wildner int usb_proc_create(struct usb_process *up, struct lock *p_lock, 7212bd3c8bSSascha Wildner const char *pmesg, uint8_t prio); 7312bd3c8bSSascha Wildner void usb_proc_drain(struct usb_process *up); 7412bd3c8bSSascha Wildner void usb_proc_mwait(struct usb_process *up, void *pm0, void *pm1); 7512bd3c8bSSascha Wildner void usb_proc_free(struct usb_process *up); 7612bd3c8bSSascha Wildner void *usb_proc_msignal(struct usb_process *up, void *pm0, void *pm1); 7712bd3c8bSSascha Wildner void usb_proc_rewakeup(struct usb_process *up); 78*141a761fSMarkus Pfeiffer int usb_proc_is_called_from(struct usb_process *up); 7912bd3c8bSSascha Wildner 8057bed822SMarkus Pfeiffer void usb_proc_explore_mwait(struct usb_device *, void *, void *); 8157bed822SMarkus Pfeiffer void *usb_proc_explore_msignal(struct usb_device *, void *, void *); 8257bed822SMarkus Pfeiffer void usb_proc_explore_lock(struct usb_device *); 8357bed822SMarkus Pfeiffer void usb_proc_explore_unlock(struct usb_device *); 8457bed822SMarkus Pfeiffer 8512bd3c8bSSascha Wildner #endif /* _USB_PROCESS_H_ */ 86