1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include "implementation/global_implementation.h" 29 30/* function prototypes */ 31static usb_handle_req_t usb_temp_get_desc_w; 32static usb_temp_setup_by_index_t usb_temp_setup_by_index_w; 33static usb_temp_unsetup_t usb_temp_unsetup_w; 34static usb_test_quirk_t usb_test_quirk_w; 35static usb_quirk_ioctl_t usb_quirk_ioctl_w; 36 37/* global variables */ 38usb_handle_req_t *usb_temp_get_desc_p = &usb_temp_get_desc_w; 39usb_temp_setup_by_index_t *usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w; 40usb_temp_unsetup_t *usb_temp_unsetup_p = &usb_temp_unsetup_w; 41usb_test_quirk_t *usb_test_quirk_p = &usb_test_quirk_w; 42usb_quirk_ioctl_t *usb_quirk_ioctl_p = &usb_quirk_ioctl_w; 43devclass_t usb_devclass_ptr; 44 45static usb_error_t 46usb_temp_setup_by_index_w(struct usb_device *udev, uint16_t index) 47{ 48 return (USB_ERR_INVAL); 49} 50 51static uint8_t 52usb_test_quirk_w(const struct usbd_lookup_info *info, uint16_t quirk) 53{ 54 return (0); /* no match */ 55} 56 57static int 58usb_quirk_ioctl_w(unsigned long cmd, caddr_t data, int fflag, struct thread *td) 59{ 60 return (ENOIOCTL); 61} 62 63static usb_error_t 64usb_temp_get_desc_w(struct usb_device *udev, struct usb_device_request *req, const void **pPtr, uint16_t *pLength) 65{ 66 /* stall */ 67 return (USB_ERR_STALLED); 68} 69 70static void 71usb_temp_unsetup_w(struct usb_device *udev) 72{ 73 usbd_free_config_desc(udev, udev->usb_template_ptr); 74 udev->usb_template_ptr = NULL; 75} 76 77void 78usb_quirk_unload(void *arg) 79{ 80 /* reset function pointers */ 81 82 usb_test_quirk_p = &usb_test_quirk_w; 83 usb_quirk_ioctl_p = &usb_quirk_ioctl_w; 84 85 /* wait for CPU to exit the loaded functions, if any */ 86 87 /* XXX this is a tradeoff */ 88 89 pause("WAIT", hz); 90} 91 92void 93usb_temp_unload(void *arg) 94{ 95 /* reset function pointers */ 96 97 usb_temp_get_desc_p = &usb_temp_get_desc_w; 98 usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w; 99 usb_temp_unsetup_p = &usb_temp_unsetup_w; 100 101 /* wait for CPU to exit the loaded functions, if any */ 102 103 /* XXX this is a tradeoff */ 104 105 pause("WAIT", hz); 106} 107 108void 109usb_bus_unload(void *arg) 110{ 111 /* reset function pointers */ 112 113 usb_devclass_ptr = NULL; 114 115 /* wait for CPU to exit the loaded functions, if any */ 116 117 /* XXX this is a tradeoff */ 118 119 pause("WAIT", hz); 120} 121