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_handle_request_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_handle_request_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 usb_device *udev, uint16_t index) 55 { 56 return (USB_ERR_INVAL); 57 } 58 59 static uint8_t 60 usb2_test_quirk_w(const struct usb_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 usb2_error_t 72 usb2_temp_get_desc_w(struct usb_device *udev, struct usb_device_request *req, const void **pPtr, uint16_t *pLength) 73 { 74 /* stall */ 75 return (USB_ERR_STALLED); 76 } 77 78 static void 79 usb2_temp_unsetup_w(struct usb_device *udev) 80 { 81 if (udev->usb2_template_ptr) { 82 83 free(udev->usb2_template_ptr, M_USB); 84 85 udev->usb2_template_ptr = NULL; 86 } 87 } 88 89 static uint8_t 90 usb2_test_huawei_autoinst_w(struct usb_device *udev, 91 struct usb_attach_arg *uaa) 92 { 93 return (USB_ERR_INVAL); 94 } 95 96 void 97 usb2_quirk_unload(void *arg) 98 { 99 /* reset function pointers */ 100 101 usb2_test_quirk_p = &usb2_test_quirk_w; 102 usb2_quirk_ioctl_p = &usb2_quirk_ioctl_w; 103 104 /* wait for CPU to exit the loaded functions, if any */ 105 106 /* XXX this is a tradeoff */ 107 108 pause("WAIT", hz); 109 } 110 111 void 112 usb2_temp_unload(void *arg) 113 { 114 /* reset function pointers */ 115 116 usb2_temp_get_desc_p = &usb2_temp_get_desc_w; 117 usb2_temp_setup_by_index_p = &usb2_temp_setup_by_index_w; 118 usb2_temp_unsetup_p = &usb2_temp_unsetup_w; 119 120 /* wait for CPU to exit the loaded functions, if any */ 121 122 /* XXX this is a tradeoff */ 123 124 pause("WAIT", hz); 125 } 126 127 void 128 usb2_bus_unload(void *arg) 129 { 130 /* reset function pointers */ 131 132 usb2_devclass_ptr = NULL; 133 134 /* wait for CPU to exit the loaded functions, if any */ 135 136 /* XXX this is a tradeoff */ 137 138 pause("WAIT", hz); 139 } 140 141 void 142 usb2_test_huawei_unload(void *arg) 143 { 144 /* reset function pointers */ 145 146 usb2_test_huawei_autoinst_p = &usb2_test_huawei_autoinst_w; 147 148 /* wait for CPU to exit the loaded functions, if any */ 149 150 /* XXX this is a tradeoff */ 151 152 pause("WAIT", 16*hz); 153 } 154