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