1/* $FreeBSD$ */ 2/*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 */ 26 27#ifdef USB_GLOBAL_INCLUDE_FILE 28#include USB_GLOBAL_INCLUDE_FILE 29#else 30#include <sys/stdint.h> 31#include <sys/stddef.h> 32#include <sys/param.h> 33#include <sys/queue.h> 34#include <sys/types.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/bus.h> 38#include <sys/module.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/condvar.h> 42#include <sys/sysctl.h> 43#include <sys/sx.h> 44#include <sys/unistd.h> 45#include <sys/callout.h> 46#include <sys/malloc.h> 47#include <sys/priv.h> 48 49#include <dev/usb/usb.h> 50#include <dev/usb/usbdi.h> 51 52#include <dev/usb/usb_core.h> 53#include <dev/usb/usb_process.h> 54#include <dev/usb/usb_device.h> 55#include <dev/usb/usb_dynamic.h> 56#include <dev/usb/usb_request.h> 57#endif /* USB_GLOBAL_INCLUDE_FILE */ 58 59/* function prototypes */ 60static usb_handle_req_t usb_temp_get_desc_w; 61static usb_temp_setup_by_index_t usb_temp_setup_by_index_w; 62static usb_temp_unsetup_t usb_temp_unsetup_w; 63static usb_test_quirk_t usb_test_quirk_w; 64static usb_quirk_ioctl_t usb_quirk_ioctl_w; 65 66/* global variables */ 67usb_handle_req_t *usb_temp_get_desc_p = &usb_temp_get_desc_w; 68usb_temp_setup_by_index_t *usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w; 69usb_temp_unsetup_t *usb_temp_unsetup_p = &usb_temp_unsetup_w; 70usb_test_quirk_t *usb_test_quirk_p = &usb_test_quirk_w; 71usb_quirk_ioctl_t *usb_quirk_ioctl_p = &usb_quirk_ioctl_w; 72devclass_t usb_devclass_ptr; 73 74static usb_error_t 75usb_temp_setup_by_index_w(struct usb_device *udev, uint16_t index) 76{ 77 return (USB_ERR_INVAL); 78} 79 80static uint8_t 81usb_test_quirk_w(const struct usbd_lookup_info *info, uint16_t quirk) 82{ 83 return (0); /* no match */ 84} 85 86static int 87usb_quirk_ioctl_w(unsigned long cmd, caddr_t data, int fflag, struct thread *td) 88{ 89 return (ENOIOCTL); 90} 91 92static usb_error_t 93usb_temp_get_desc_w(struct usb_device *udev, struct usb_device_request *req, const void **pPtr, uint16_t *pLength) 94{ 95 /* stall */ 96 return (USB_ERR_STALLED); 97} 98 99static void 100usb_temp_unsetup_w(struct usb_device *udev) 101{ 102 usbd_free_config_desc(udev, udev->usb_template_ptr); 103 udev->usb_template_ptr = NULL; 104} 105 106void 107usb_quirk_unload(void *arg) 108{ 109 /* reset function pointers */ 110 111 usb_test_quirk_p = &usb_test_quirk_w; 112 usb_quirk_ioctl_p = &usb_quirk_ioctl_w; 113 114 /* wait for CPU to exit the loaded functions, if any */ 115 116 /* XXX this is a tradeoff */ 117 118 pause("WAIT", hz); 119} 120 121void 122usb_temp_unload(void *arg) 123{ 124 /* reset function pointers */ 125 126 usb_temp_get_desc_p = &usb_temp_get_desc_w; 127 usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w; 128 usb_temp_unsetup_p = &usb_temp_unsetup_w; 129 130 /* wait for CPU to exit the loaded functions, if any */ 131 132 /* XXX this is a tradeoff */ 133 134 pause("WAIT", hz); 135} 136 137void 138usb_bus_unload(void *arg) 139{ 140 /* reset function pointers */ 141 142 usb_devclass_ptr = NULL; 143 144 /* wait for CPU to exit the loaded functions, if any */ 145 146 /* XXX this is a tradeoff */ 147 148 pause("WAIT", hz); 149} 150