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 #include <dev/usb/usb_defs.h> 28 #include <dev/usb/usb_mfunc.h> 29 #include <dev/usb/usb_error.h> 30 #include <dev/usb/usb.h> 31 32 #include <dev/usb/usb_core.h> 33 #include <dev/usb/usb_process.h> 34 #include <dev/usb/usb_device.h> 35 #include <dev/usb/usb_dynamic.h> 36 37 /* function prototypes */ 38 static usb2_temp_get_desc_t usb2_temp_get_desc_w; 39 static usb2_temp_setup_by_index_t usb2_temp_setup_by_index_w; 40 static usb2_temp_unsetup_t usb2_temp_unsetup_w; 41 static usb2_test_quirk_t usb2_test_quirk_w; 42 static usb2_test_huawei_autoinst_t usb2_test_huawei_autoinst_w; 43 static usb2_quirk_ioctl_t usb2_quirk_ioctl_w; 44 45 /* global variables */ 46 usb2_temp_get_desc_t *usb2_temp_get_desc_p = &usb2_temp_get_desc_w; 47 usb2_temp_setup_by_index_t *usb2_temp_setup_by_index_p = &usb2_temp_setup_by_index_w; 48 usb2_temp_unsetup_t *usb2_temp_unsetup_p = &usb2_temp_unsetup_w; 49 usb2_test_quirk_t *usb2_test_quirk_p = &usb2_test_quirk_w; 50 usb2_test_huawei_autoinst_t *usb2_test_huawei_autoinst_p = &usb2_test_huawei_autoinst_w; 51 usb2_quirk_ioctl_t *usb2_quirk_ioctl_p = &usb2_quirk_ioctl_w; 52 devclass_t usb2_devclass_ptr = NULL; 53 54 static usb2_error_t 55 usb2_temp_setup_by_index_w(struct usb2_device *udev, uint16_t index) 56 { 57 return (USB_ERR_INVAL); 58 } 59 60 static uint8_t 61 usb2_test_quirk_w(const struct usb2_lookup_info *info, uint16_t quirk) 62 { 63 return (0); /* no match */ 64 } 65 66 static int 67 usb2_quirk_ioctl_w(unsigned long cmd, caddr_t data, int fflag, struct thread *td) 68 { 69 return (ENOIOCTL); 70 } 71 72 static void 73 usb2_temp_get_desc_w(struct usb2_device *udev, struct usb2_device_request *req, const void **pPtr, uint16_t *pLength) 74 { 75 /* stall */ 76 *pPtr = NULL; 77 *pLength = 0; 78 } 79 80 static void 81 usb2_temp_unsetup_w(struct usb2_device *udev) 82 { 83 if (udev->usb2_template_ptr) { 84 85 free(udev->usb2_template_ptr, M_USB); 86 87 udev->usb2_template_ptr = NULL; 88 } 89 } 90 91 static uint8_t 92 usb2_test_huawei_autoinst_w(struct usb2_device *udev, 93 struct usb2_attach_arg *uaa) 94 { 95 return (USB_ERR_INVAL); 96 } 97 98 void 99 usb2_quirk_unload(void *arg) 100 { 101 /* reset function pointers */ 102 103 usb2_test_quirk_p = &usb2_test_quirk_w; 104 usb2_quirk_ioctl_p = &usb2_quirk_ioctl_w; 105 106 /* wait for CPU to exit the loaded functions, if any */ 107 108 /* XXX this is a tradeoff */ 109 110 pause("WAIT", hz); 111 } 112 113 void 114 usb2_temp_unload(void *arg) 115 { 116 /* reset function pointers */ 117 118 usb2_temp_get_desc_p = &usb2_temp_get_desc_w; 119 usb2_temp_setup_by_index_p = &usb2_temp_setup_by_index_w; 120 usb2_temp_unsetup_p = &usb2_temp_unsetup_w; 121 122 /* wait for CPU to exit the loaded functions, if any */ 123 124 /* XXX this is a tradeoff */ 125 126 pause("WAIT", hz); 127 } 128 129 void 130 usb2_bus_unload(void *arg) 131 { 132 /* reset function pointers */ 133 134 usb2_devclass_ptr = NULL; 135 136 /* wait for CPU to exit the loaded functions, if any */ 137 138 /* XXX this is a tradeoff */ 139 140 pause("WAIT", hz); 141 } 142 143 void 144 usb2_test_huawei_unload(void *arg) 145 { 146 /* reset function pointers */ 147 148 usb2_test_huawei_autoinst_p = &usb2_test_huawei_autoinst_w; 149 150 /* wait for CPU to exit the loaded functions, if any */ 151 152 /* XXX this is a tradeoff */ 153 154 pause("WAIT", 16*hz); 155 } 156