102ac6454SAndrew Thompson /* $FreeBSD$ */ 202ac6454SAndrew Thompson /*- 3*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 4718cf2ccSPedro F. Giffuni * 502ac6454SAndrew Thompson * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 602ac6454SAndrew Thompson * 702ac6454SAndrew Thompson * Redistribution and use in source and binary forms, with or without 802ac6454SAndrew Thompson * modification, are permitted provided that the following conditions 902ac6454SAndrew Thompson * are met: 1002ac6454SAndrew Thompson * 1. Redistributions of source code must retain the above copyright 1102ac6454SAndrew Thompson * notice, this list of conditions and the following disclaimer. 1202ac6454SAndrew Thompson * 2. Redistributions in binary form must reproduce the above copyright 1302ac6454SAndrew Thompson * notice, this list of conditions and the following disclaimer in the 1402ac6454SAndrew Thompson * documentation and/or other materials provided with the distribution. 1502ac6454SAndrew Thompson * 1602ac6454SAndrew Thompson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1702ac6454SAndrew Thompson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1802ac6454SAndrew Thompson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1902ac6454SAndrew Thompson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2002ac6454SAndrew Thompson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2102ac6454SAndrew Thompson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2202ac6454SAndrew Thompson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2302ac6454SAndrew Thompson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2402ac6454SAndrew Thompson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2502ac6454SAndrew Thompson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2602ac6454SAndrew Thompson * SUCH DAMAGE. 2702ac6454SAndrew Thompson */ 2802ac6454SAndrew Thompson 2975973647SAndrew Thompson #ifndef _USB_PROCESS_H_ 3075973647SAndrew Thompson #define _USB_PROCESS_H_ 3102ac6454SAndrew Thompson 32d2b99310SHans Petter Selasky #ifndef USB_GLOBAL_INCLUDE_FILE 336a9736a8SJohn Baldwin #include <sys/interrupt.h> 3402ac6454SAndrew Thompson #include <sys/priority.h> 356a9736a8SJohn Baldwin #include <sys/runq.h> 36d2b99310SHans Petter Selasky #endif 3702ac6454SAndrew Thompson 3802ac6454SAndrew Thompson /* defines */ 3943ea03d7SHans Petter Selasky #define USB_PRI_HIGHEST PI_SWI(SWI_TTY) 406a9736a8SJohn Baldwin #define USB_PRI_HIGH PI_SWI(SWI_NET) 416a9736a8SJohn Baldwin #define USB_PRI_MED PI_SWI(SWI_CAMBIO) 4202ac6454SAndrew Thompson 4302ac6454SAndrew Thompson #define USB_PROC_WAIT_TIMEOUT 2 4402ac6454SAndrew Thompson #define USB_PROC_WAIT_DRAIN 1 4502ac6454SAndrew Thompson #define USB_PROC_WAIT_NORMAL 0 4602ac6454SAndrew Thompson 4702ac6454SAndrew Thompson /* structure prototypes */ 4802ac6454SAndrew Thompson 49760bc48eSAndrew Thompson struct usb_proc_msg; 50751aaf5aSHans Petter Selasky struct usb_device; 5102ac6454SAndrew Thompson 5202ac6454SAndrew Thompson /* 5302ac6454SAndrew Thompson * The following structure defines the USB process. 5402ac6454SAndrew Thompson */ 55760bc48eSAndrew Thompson struct usb_process { 56760bc48eSAndrew Thompson TAILQ_HEAD(, usb_proc_msg) up_qhead; 5702ac6454SAndrew Thompson struct cv up_cv; 5802ac6454SAndrew Thompson struct cv up_drain; 5902ac6454SAndrew Thompson 60532b1952SAndrew Thompson struct thread *up_ptr; 6102ac6454SAndrew Thompson struct thread *up_curtd; 6202ac6454SAndrew Thompson struct mtx *up_mtx; 6302ac6454SAndrew Thompson 64f9cb546cSAndrew Thompson usb_size_t up_msg_num; 6502ac6454SAndrew Thompson 6602ac6454SAndrew Thompson uint8_t up_prio; 6702ac6454SAndrew Thompson uint8_t up_gone; 6802ac6454SAndrew Thompson uint8_t up_msleep; 6902ac6454SAndrew Thompson uint8_t up_csleep; 7002ac6454SAndrew Thompson uint8_t up_dsleep; 7102ac6454SAndrew Thompson }; 7202ac6454SAndrew Thompson 7302ac6454SAndrew Thompson /* prototypes */ 7402ac6454SAndrew Thompson 75a593f6b8SAndrew Thompson uint8_t usb_proc_is_gone(struct usb_process *up); 76a593f6b8SAndrew Thompson int usb_proc_create(struct usb_process *up, struct mtx *p_mtx, 7702ac6454SAndrew Thompson const char *pmesg, uint8_t prio); 78a593f6b8SAndrew Thompson void usb_proc_drain(struct usb_process *up); 79a593f6b8SAndrew Thompson void usb_proc_mwait(struct usb_process *up, void *pm0, void *pm1); 80a593f6b8SAndrew Thompson void usb_proc_free(struct usb_process *up); 81a593f6b8SAndrew Thompson void *usb_proc_msignal(struct usb_process *up, void *pm0, void *pm1); 82cb18f7d1SAlfred Perlstein void usb_proc_rewakeup(struct usb_process *up); 83d008478eSHans Petter Selasky int usb_proc_is_called_from(struct usb_process *up); 8402ac6454SAndrew Thompson 85751aaf5aSHans Petter Selasky void usb_proc_explore_mwait(struct usb_device *, void *, void *); 86751aaf5aSHans Petter Selasky void *usb_proc_explore_msignal(struct usb_device *, void *, void *); 87751aaf5aSHans Petter Selasky void usb_proc_explore_lock(struct usb_device *); 88751aaf5aSHans Petter Selasky void usb_proc_explore_unlock(struct usb_device *); 89751aaf5aSHans Petter Selasky 9075973647SAndrew Thompson #endif /* _USB_PROCESS_H_ */ 91